diff options
Diffstat (limited to 'drivers/net/wireless/intel/ipw2x00')
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/Kconfig | 195 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/Makefile | 15 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/ipw.h | 20 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/ipw2100.c | 8598 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/ipw2100.h | 1142 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/ipw2200.c | 12008 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/ipw2200.h | 1985 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw.h | 1001 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw_geo.c | 179 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw_module.c | 297 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw_rx.c | 1737 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw_tx.c | 519 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw_wx.c | 726 |
13 files changed, 28422 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/ipw2x00/Kconfig b/drivers/net/wireless/intel/ipw2x00/Kconfig new file mode 100644 index 000000000..1650d5865 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/Kconfig @@ -0,0 +1,195 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Intel Centrino wireless drivers +# + +config IPW2100 + tristate "Intel PRO/Wireless 2100 Network Connection" + depends on PCI && CFG80211 + select WIRELESS_EXT + select WEXT_SPY + select WEXT_PRIV + select FW_LOADER + select LIB80211 + select LIBIPW + help + A driver for the Intel PRO/Wireless 2100 Network + Connection 802.11b wireless network adapter. + + See <file:Documentation/networking/device_drivers/wifi/intel/ipw2100.rst> + for information on the capabilities currently enabled in this driver + and for tips for debugging issues and problems. + + In order to use this driver, you will need a firmware image for it. + You can obtain the firmware from + <http://ipw2100.sf.net/>. Once you have the firmware image, you + will need to place it in /lib/firmware. + + You will also very likely need the Wireless Tools in order to + configure your card: + + <https://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>. + + It is recommended that you compile this driver as a module (M) + rather than built-in (Y). This driver requires firmware at device + initialization time, and when built-in this typically happens + before the filesystem is accessible (hence firmware will be + unavailable and initialization will fail). If you do choose to build + this driver into your kernel image, you can avoid this problem by + including the firmware and a firmware loader in an initramfs. + +config IPW2100_MONITOR + bool "Enable promiscuous mode" + depends on IPW2100 + help + Enables promiscuous/monitor mode support for the ipw2100 driver. + With this feature compiled into the driver, you can switch to + promiscuous mode via the Wireless Tool's Monitor mode. While in this + mode, no packets can be sent. + +config IPW2100_DEBUG + bool "Enable full debugging output in IPW2100 module." + depends on IPW2100 + help + This option will enable debug tracing output for the IPW2100. + + This will result in the kernel module being ~60k larger. You can + control which debug output is sent to the kernel log by setting the + value in + + /sys/bus/pci/drivers/ipw2100/debug_level + + This entry will only exist if this option is enabled. + + If you are not trying to debug or develop the IPW2100 driver, you + most likely want to say N here. + +config IPW2200 + tristate "Intel PRO/Wireless 2200BG and 2915ABG Network Connection" + depends on PCI && CFG80211 + select CFG80211_WEXT_EXPORT + select WIRELESS_EXT + select WEXT_SPY + select WEXT_PRIV + select FW_LOADER + select LIB80211 + select LIBIPW + help + A driver for the Intel PRO/Wireless 2200BG and 2915ABG Network + Connection adapters. + + See <file:Documentation/networking/device_drivers/wifi/intel/ipw2200.rst> + for information on the capabilities currently enabled in this + driver and for tips for debugging issues and problems. + + In order to use this driver, you will need a firmware image for it. + You can obtain the firmware from + <http://ipw2200.sf.net/>. See the above referenced README.ipw2200 + for information on where to install the firmware images. + + You will also very likely need the Wireless Tools in order to + configure your card: + + <https://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>. + + It is recommended that you compile this driver as a module (M) + rather than built-in (Y). This driver requires firmware at device + initialization time, and when built-in this typically happens + before the filesystem is accessible (hence firmware will be + unavailable and initialization will fail). If you do choose to build + this driver into your kernel image, you can avoid this problem by + including the firmware and a firmware loader in an initramfs. + +config IPW2200_MONITOR + bool "Enable promiscuous mode" + depends on IPW2200 + help + Enables promiscuous/monitor mode support for the ipw2200 driver. + With this feature compiled into the driver, you can switch to + promiscuous mode via the Wireless Tool's Monitor mode. While in this + mode, no packets can be sent. + +config IPW2200_RADIOTAP + bool "Enable radiotap format 802.11 raw packet support" + depends on IPW2200_MONITOR + +config IPW2200_PROMISCUOUS + bool "Enable creation of a RF radiotap promiscuous interface" + depends on IPW2200_MONITOR + select IPW2200_RADIOTAP + help + Enables the creation of a second interface prefixed 'rtap'. + This second interface will provide every received in radiotap + format. + + This is useful for performing wireless network analysis while + maintaining an active association. + + Example usage: + + % modprobe ipw2200 rtap_iface=1 + % ifconfig rtap0 up + % tethereal -i rtap0 + + If you do not specify 'rtap_iface=1' as a module parameter then + the rtap interface will not be created and you will need to turn + it on via sysfs: + + % echo 1 > /sys/bus/pci/drivers/ipw2200/*/rtap_iface + +config IPW2200_QOS + bool "Enable QoS support" + depends on IPW2200 + +config IPW2200_DEBUG + bool "Enable full debugging output in IPW2200 module." + depends on IPW2200 + help + This option will enable low level debug tracing output for IPW2200. + + Note, normal debug code is already compiled in. This low level + debug option enables debug on hot paths (e.g Tx, Rx, ISR) and + will result in the kernel module being ~70 larger. Most users + will typically not need this high verbosity debug information. + + If you are not sure, say N here. + +config LIBIPW + tristate + depends on PCI && CFG80211 + select WIRELESS_EXT + select WEXT_SPY + select CRYPTO + select CRYPTO_MICHAEL_MIC + select CRC32 + select LIB80211 + select LIB80211_CRYPT_WEP + select LIB80211_CRYPT_TKIP + select LIB80211_CRYPT_CCMP + help + This option enables the hardware independent IEEE 802.11 + networking stack. This component is deprecated in favor of the + mac80211 component. + +config LIBIPW_DEBUG + bool "Full debugging output for the LIBIPW component" + depends on LIBIPW + help + This option will enable debug tracing output for the + libipw component. + + This will result in the kernel module being ~70k larger. You + can control which debug output is sent to the kernel log by + setting the value in + + /proc/net/ieee80211/debug_level + + For example: + + % echo 0x00000FFO > /proc/net/ieee80211/debug_level + + For a list of values you can assign to debug_level, you + can look at the bit mask values in ieee80211.h + + If you are not trying to debug or develop the libipw + component, you most likely want to say N here. diff --git a/drivers/net/wireless/intel/ipw2x00/Makefile b/drivers/net/wireless/intel/ipw2x00/Makefile new file mode 100644 index 000000000..e1ec50359 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/Makefile @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the Intel Centrino wireless drivers +# + +obj-$(CONFIG_IPW2100) += ipw2100.o +obj-$(CONFIG_IPW2200) += ipw2200.o + +obj-$(CONFIG_LIBIPW) += libipw.o +libipw-objs := \ + libipw_module.o \ + libipw_tx.o \ + libipw_rx.o \ + libipw_wx.o \ + libipw_geo.o diff --git a/drivers/net/wireless/intel/ipw2x00/ipw.h b/drivers/net/wireless/intel/ipw2x00/ipw.h new file mode 100644 index 000000000..7b230a132 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/ipw.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Intel Pro/Wireless 2100, 2200BG, 2915ABG network connection driver + * + * Copyright 2012 Stanislav Yakovlev <stas.yakovlev@gmail.com> + */ + +#ifndef __IPW_H__ +#define __IPW_H__ + +#include <linux/ieee80211.h> + +static const u32 ipw_cipher_suites[] = { + WLAN_CIPHER_SUITE_WEP40, + WLAN_CIPHER_SUITE_WEP104, + WLAN_CIPHER_SUITE_TKIP, + WLAN_CIPHER_SUITE_CCMP, +}; + +#endif diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c new file mode 100644 index 000000000..b0f23cf1a --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c @@ -0,0 +1,8598 @@ +// SPDX-License-Identifier: GPL-2.0-only +/****************************************************************************** + + Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved. + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + + Portions of this file are based on the sample_* files provided by Wireless + Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes + <jt@hpl.hp.com> + + Portions of this file are based on the Host AP project, + Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + <j@w1.fi> + Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> + + Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and + ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c + available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox + +******************************************************************************/ +/* + + Initial driver on which this is based was developed by Janusz Gorycki, + Maciej Urbaniak, and Maciej Sosnowski. + + Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak. + +Theory of Operation + +Tx - Commands and Data + +Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs) +Each TBD contains a pointer to the physical (dma_addr_t) address of data being +sent to the firmware as well as the length of the data. + +The host writes to the TBD queue at the WRITE index. The WRITE index points +to the _next_ packet to be written and is advanced when after the TBD has been +filled. + +The firmware pulls from the TBD queue at the READ index. The READ index points +to the currently being read entry, and is advanced once the firmware is +done with a packet. + +When data is sent to the firmware, the first TBD is used to indicate to the +firmware if a Command or Data is being sent. If it is Command, all of the +command information is contained within the physical address referred to by the +TBD. If it is Data, the first TBD indicates the type of data packet, number +of fragments, etc. The next TBD then refers to the actual packet location. + +The Tx flow cycle is as follows: + +1) ipw2100_tx() is called by kernel with SKB to transmit +2) Packet is move from the tx_free_list and appended to the transmit pending + list (tx_pend_list) +3) work is scheduled to move pending packets into the shared circular queue. +4) when placing packet in the circular queue, the incoming SKB is DMA mapped + to a physical address. That address is entered into a TBD. Two TBDs are + filled out. The first indicating a data packet, the second referring to the + actual payload data. +5) the packet is removed from tx_pend_list and placed on the end of the + firmware pending list (fw_pend_list) +6) firmware is notified that the WRITE index has +7) Once the firmware has processed the TBD, INTA is triggered. +8) For each Tx interrupt received from the firmware, the READ index is checked + to see which TBDs are done being processed. +9) For each TBD that has been processed, the ISR pulls the oldest packet + from the fw_pend_list. +10)The packet structure contained in the fw_pend_list is then used + to unmap the DMA address and to free the SKB originally passed to the driver + from the kernel. +11)The packet structure is placed onto the tx_free_list + +The above steps are the same for commands, only the msg_free_list/msg_pend_list +are used instead of tx_free_list/tx_pend_list + +... + +Critical Sections / Locking : + +There are two locks utilized. The first is the low level lock (priv->low_lock) +that protects the following: + +- Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows: + + tx_free_list : Holds pre-allocated Tx buffers. + TAIL modified in __ipw2100_tx_process() + HEAD modified in ipw2100_tx() + + tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring + TAIL modified ipw2100_tx() + HEAD modified by ipw2100_tx_send_data() + + msg_free_list : Holds pre-allocated Msg (Command) buffers + TAIL modified in __ipw2100_tx_process() + HEAD modified in ipw2100_hw_send_command() + + msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring + TAIL modified in ipw2100_hw_send_command() + HEAD modified in ipw2100_tx_send_commands() + + The flow of data on the TX side is as follows: + + MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST + TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST + + The methods that work on the TBD ring are protected via priv->low_lock. + +- The internal data state of the device itself +- Access to the firmware read/write indexes for the BD queues + and associated logic + +All external entry functions are locked with the priv->action_lock to ensure +that only one external action is invoked at a time. + + +*/ + +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/if_arp.h> +#include <linux/in6.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/kernel.h> +#include <linux/kmod.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/ethtool.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/proc_fs.h> +#include <linux/skbuff.h> +#include <linux/uaccess.h> +#include <asm/io.h> +#include <linux/fs.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/unistd.h> +#include <linux/stringify.h> +#include <linux/tcp.h> +#include <linux/types.h> +#include <linux/time.h> +#include <linux/firmware.h> +#include <linux/acpi.h> +#include <linux/ctype.h> +#include <linux/pm_qos.h> + +#include <net/lib80211.h> + +#include "ipw2100.h" +#include "ipw.h" + +#define IPW2100_VERSION "git-1.2.2" + +#define DRV_NAME "ipw2100" +#define DRV_VERSION IPW2100_VERSION +#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver" +#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" + +static struct pm_qos_request ipw2100_pm_qos_req; + +/* Debugging stuff */ +#ifdef CONFIG_IPW2100_DEBUG +#define IPW2100_RX_DEBUG /* Reception debugging */ +#endif + +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_VERSION(DRV_VERSION); +MODULE_AUTHOR(DRV_COPYRIGHT); +MODULE_LICENSE("GPL"); + +static int debug = 0; +static int network_mode = 0; +static int channel = 0; +static int associate = 0; +static int disable = 0; +#ifdef CONFIG_PM +static struct ipw2100_fw ipw2100_firmware; +#endif + +#include <linux/moduleparam.h> +module_param(debug, int, 0444); +module_param_named(mode, network_mode, int, 0444); +module_param(channel, int, 0444); +module_param(associate, int, 0444); +module_param(disable, int, 0444); + +MODULE_PARM_DESC(debug, "debug level"); +MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)"); +MODULE_PARM_DESC(channel, "channel"); +MODULE_PARM_DESC(associate, "auto associate when scanning (default off)"); +MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); + +static u32 ipw2100_debug_level = IPW_DL_NONE; + +#ifdef CONFIG_IPW2100_DEBUG +#define IPW_DEBUG(level, message...) \ +do { \ + if (ipw2100_debug_level & (level)) { \ + printk(KERN_DEBUG "ipw2100: %s ", __func__); \ + printk(message); \ + } \ +} while (0) +#else +#define IPW_DEBUG(level, message...) do {} while (0) +#endif /* CONFIG_IPW2100_DEBUG */ + +#ifdef CONFIG_IPW2100_DEBUG +static const char *command_types[] = { + "undefined", + "unused", /* HOST_ATTENTION */ + "HOST_COMPLETE", + "unused", /* SLEEP */ + "unused", /* HOST_POWER_DOWN */ + "unused", + "SYSTEM_CONFIG", + "unused", /* SET_IMR */ + "SSID", + "MANDATORY_BSSID", + "AUTHENTICATION_TYPE", + "ADAPTER_ADDRESS", + "PORT_TYPE", + "INTERNATIONAL_MODE", + "CHANNEL", + "RTS_THRESHOLD", + "FRAG_THRESHOLD", + "POWER_MODE", + "TX_RATES", + "BASIC_TX_RATES", + "WEP_KEY_INFO", + "unused", + "unused", + "unused", + "unused", + "WEP_KEY_INDEX", + "WEP_FLAGS", + "ADD_MULTICAST", + "CLEAR_ALL_MULTICAST", + "BEACON_INTERVAL", + "ATIM_WINDOW", + "CLEAR_STATISTICS", + "undefined", + "undefined", + "undefined", + "undefined", + "TX_POWER_INDEX", + "undefined", + "undefined", + "undefined", + "undefined", + "undefined", + "undefined", + "BROADCAST_SCAN", + "CARD_DISABLE", + "PREFERRED_BSSID", + "SET_SCAN_OPTIONS", + "SCAN_DWELL_TIME", + "SWEEP_TABLE", + "AP_OR_STATION_TABLE", + "GROUP_ORDINALS", + "SHORT_RETRY_LIMIT", + "LONG_RETRY_LIMIT", + "unused", /* SAVE_CALIBRATION */ + "unused", /* RESTORE_CALIBRATION */ + "undefined", + "undefined", + "undefined", + "HOST_PRE_POWER_DOWN", + "unused", /* HOST_INTERRUPT_COALESCING */ + "undefined", + "CARD_DISABLE_PHY_OFF", + "MSDU_TX_RATES", + "undefined", + "SET_STATION_STAT_BITS", + "CLEAR_STATIONS_STAT_BITS", + "LEAP_ROGUE_MODE", + "SET_SECURITY_INFORMATION", + "DISASSOCIATION_BSSID", + "SET_WPA_ASS_IE" +}; +#endif + +static const long ipw2100_frequencies[] = { + 2412, 2417, 2422, 2427, + 2432, 2437, 2442, 2447, + 2452, 2457, 2462, 2467, + 2472, 2484 +}; + +#define FREQ_COUNT ARRAY_SIZE(ipw2100_frequencies) + +static struct ieee80211_rate ipw2100_bg_rates[] = { + { .bitrate = 10 }, + { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, +}; + +#define RATE_COUNT ARRAY_SIZE(ipw2100_bg_rates) + +/* Pre-decl until we get the code solid and then we can clean it up */ +static void ipw2100_tx_send_commands(struct ipw2100_priv *priv); +static void ipw2100_tx_send_data(struct ipw2100_priv *priv); +static int ipw2100_adapter_setup(struct ipw2100_priv *priv); + +static void ipw2100_queues_initialize(struct ipw2100_priv *priv); +static void ipw2100_queues_free(struct ipw2100_priv *priv); +static int ipw2100_queues_allocate(struct ipw2100_priv *priv); + +static int ipw2100_fw_download(struct ipw2100_priv *priv, + struct ipw2100_fw *fw); +static int ipw2100_get_firmware(struct ipw2100_priv *priv, + struct ipw2100_fw *fw); +static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf, + size_t max); +static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf, + size_t max); +static void ipw2100_release_firmware(struct ipw2100_priv *priv, + struct ipw2100_fw *fw); +static int ipw2100_ucode_download(struct ipw2100_priv *priv, + struct ipw2100_fw *fw); +static void ipw2100_wx_event_work(struct work_struct *work); +static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev); +static const struct iw_handler_def ipw2100_wx_handler_def; + +static inline void read_register(struct net_device *dev, u32 reg, u32 * val) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + + *val = ioread32(priv->ioaddr + reg); + IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val); +} + +static inline void write_register(struct net_device *dev, u32 reg, u32 val) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + + iowrite32(val, priv->ioaddr + reg); + IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val); +} + +static inline void read_register_word(struct net_device *dev, u32 reg, + u16 * val) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + + *val = ioread16(priv->ioaddr + reg); + IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val); +} + +static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + + *val = ioread8(priv->ioaddr + reg); + IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val); +} + +static inline void write_register_word(struct net_device *dev, u32 reg, u16 val) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + + iowrite16(val, priv->ioaddr + reg); + IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val); +} + +static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + + iowrite8(val, priv->ioaddr + reg); + IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val); +} + +static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val) +{ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + addr & IPW_REG_INDIRECT_ADDR_MASK); + read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); +} + +static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val) +{ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + addr & IPW_REG_INDIRECT_ADDR_MASK); + write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); +} + +static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val) +{ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + addr & IPW_REG_INDIRECT_ADDR_MASK); + read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); +} + +static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val) +{ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + addr & IPW_REG_INDIRECT_ADDR_MASK); + write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); +} + +static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val) +{ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + addr & IPW_REG_INDIRECT_ADDR_MASK); + read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); +} + +static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val) +{ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + addr & IPW_REG_INDIRECT_ADDR_MASK); + write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val); +} + +static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr) +{ + write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, + addr & IPW_REG_INDIRECT_ADDR_MASK); +} + +static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val) +{ + write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val); +} + +static void write_nic_memory(struct net_device *dev, u32 addr, u32 len, + const u8 * buf) +{ + u32 aligned_addr; + u32 aligned_len; + u32 dif_len; + u32 i; + + /* read first nibble byte by byte */ + aligned_addr = addr & (~0x3); + dif_len = addr - aligned_addr; + if (dif_len) { + /* Start reading at aligned_addr + dif_len */ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + aligned_addr); + for (i = dif_len; i < 4; i++, buf++) + write_register_byte(dev, + IPW_REG_INDIRECT_ACCESS_DATA + i, + *buf); + + len -= dif_len; + aligned_addr += 4; + } + + /* read DWs through autoincrement registers */ + write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr); + aligned_len = len & (~0x3); + for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4) + write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf); + + /* copy the last nibble */ + dif_len = len - aligned_len; + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr); + for (i = 0; i < dif_len; i++, buf++) + write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, + *buf); +} + +static void read_nic_memory(struct net_device *dev, u32 addr, u32 len, + u8 * buf) +{ + u32 aligned_addr; + u32 aligned_len; + u32 dif_len; + u32 i; + + /* read first nibble byte by byte */ + aligned_addr = addr & (~0x3); + dif_len = addr - aligned_addr; + if (dif_len) { + /* Start reading at aligned_addr + dif_len */ + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, + aligned_addr); + for (i = dif_len; i < 4; i++, buf++) + read_register_byte(dev, + IPW_REG_INDIRECT_ACCESS_DATA + i, + buf); + + len -= dif_len; + aligned_addr += 4; + } + + /* read DWs through autoincrement registers */ + write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr); + aligned_len = len & (~0x3); + for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4) + read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf); + + /* copy the last nibble */ + dif_len = len - aligned_len; + write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr); + for (i = 0; i < dif_len; i++, buf++) + read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf); +} + +static bool ipw2100_hw_is_adapter_in_system(struct net_device *dev) +{ + u32 dbg; + + read_register(dev, IPW_REG_DOA_DEBUG_AREA_START, &dbg); + + return dbg == IPW_DATA_DOA_DEBUG_VALUE; +} + +static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord, + void *val, u32 * len) +{ + struct ipw2100_ordinals *ordinals = &priv->ordinals; + u32 addr; + u32 field_info; + u16 field_len; + u16 field_count; + u32 total_length; + + if (ordinals->table1_addr == 0) { + printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals " + "before they have been loaded.\n"); + return -EINVAL; + } + + if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) { + if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) { + *len = IPW_ORD_TAB_1_ENTRY_SIZE; + + printk(KERN_WARNING DRV_NAME + ": ordinal buffer length too small, need %zd\n", + IPW_ORD_TAB_1_ENTRY_SIZE); + + return -EINVAL; + } + + read_nic_dword(priv->net_dev, + ordinals->table1_addr + (ord << 2), &addr); + read_nic_dword(priv->net_dev, addr, val); + + *len = IPW_ORD_TAB_1_ENTRY_SIZE; + + return 0; + } + + if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) { + + ord -= IPW_START_ORD_TAB_2; + + /* get the address of statistic */ + read_nic_dword(priv->net_dev, + ordinals->table2_addr + (ord << 3), &addr); + + /* get the second DW of statistics ; + * two 16-bit words - first is length, second is count */ + read_nic_dword(priv->net_dev, + ordinals->table2_addr + (ord << 3) + sizeof(u32), + &field_info); + + /* get each entry length */ + field_len = *((u16 *) & field_info); + + /* get number of entries */ + field_count = *(((u16 *) & field_info) + 1); + + /* abort if no enough memory */ + total_length = field_len * field_count; + if (total_length > *len) { + *len = total_length; + return -EINVAL; + } + + *len = total_length; + if (!total_length) + return 0; + + /* read the ordinal data from the SRAM */ + read_nic_memory(priv->net_dev, addr, total_length, val); + + return 0; + } + + printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor " + "in table 2\n", ord); + + return -EINVAL; +} + +static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val, + u32 * len) +{ + struct ipw2100_ordinals *ordinals = &priv->ordinals; + u32 addr; + + if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) { + if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) { + *len = IPW_ORD_TAB_1_ENTRY_SIZE; + IPW_DEBUG_INFO("wrong size\n"); + return -EINVAL; + } + + read_nic_dword(priv->net_dev, + ordinals->table1_addr + (ord << 2), &addr); + + write_nic_dword(priv->net_dev, addr, *val); + + *len = IPW_ORD_TAB_1_ENTRY_SIZE; + + return 0; + } + + IPW_DEBUG_INFO("wrong table\n"); + if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) + return -EINVAL; + + return -EINVAL; +} + +static char *snprint_line(char *buf, size_t count, + const u8 * data, u32 len, u32 ofs) +{ + int out, i, j, l; + char c; + + out = scnprintf(buf, count, "%08X", ofs); + + for (l = 0, i = 0; i < 2; i++) { + out += scnprintf(buf + out, count - out, " "); + for (j = 0; j < 8 && l < len; j++, l++) + out += scnprintf(buf + out, count - out, "%02X ", + data[(i * 8 + j)]); + for (; j < 8; j++) + out += scnprintf(buf + out, count - out, " "); + } + + out += scnprintf(buf + out, count - out, " "); + for (l = 0, i = 0; i < 2; i++) { + out += scnprintf(buf + out, count - out, " "); + for (j = 0; j < 8 && l < len; j++, l++) { + c = data[(i * 8 + j)]; + if (!isascii(c) || !isprint(c)) + c = '.'; + + out += scnprintf(buf + out, count - out, "%c", c); + } + + for (; j < 8; j++) + out += scnprintf(buf + out, count - out, " "); + } + + return buf; +} + +static void printk_buf(int level, const u8 * data, u32 len) +{ + char line[81]; + u32 ofs = 0; + if (!(ipw2100_debug_level & level)) + return; + + while (len) { + printk(KERN_DEBUG "%s\n", + snprint_line(line, sizeof(line), &data[ofs], + min(len, 16U), ofs)); + ofs += 16; + len -= min(len, 16U); + } +} + +#define MAX_RESET_BACKOFF 10 + +static void schedule_reset(struct ipw2100_priv *priv) +{ + time64_t now = ktime_get_boottime_seconds(); + + /* If we haven't received a reset request within the backoff period, + * then we can reset the backoff interval so this reset occurs + * immediately */ + if (priv->reset_backoff && + (now - priv->last_reset > priv->reset_backoff)) + priv->reset_backoff = 0; + + priv->last_reset = now; + + if (!(priv->status & STATUS_RESET_PENDING)) { + IPW_DEBUG_INFO("%s: Scheduling firmware restart (%llds).\n", + priv->net_dev->name, priv->reset_backoff); + netif_carrier_off(priv->net_dev); + netif_stop_queue(priv->net_dev); + priv->status |= STATUS_RESET_PENDING; + if (priv->reset_backoff) + schedule_delayed_work(&priv->reset_work, + priv->reset_backoff * HZ); + else + schedule_delayed_work(&priv->reset_work, 0); + + if (priv->reset_backoff < MAX_RESET_BACKOFF) + priv->reset_backoff++; + + wake_up_interruptible(&priv->wait_command_queue); + } else + IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n", + priv->net_dev->name); + +} + +#define HOST_COMPLETE_TIMEOUT (2 * HZ) +static int ipw2100_hw_send_command(struct ipw2100_priv *priv, + struct host_command *cmd) +{ + struct list_head *element; + struct ipw2100_tx_packet *packet; + unsigned long flags; + int err = 0; + + IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n", + command_types[cmd->host_command], cmd->host_command, + cmd->host_command_length); + printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters, + cmd->host_command_length); + + spin_lock_irqsave(&priv->low_lock, flags); + + if (priv->fatal_error) { + IPW_DEBUG_INFO + ("Attempt to send command while hardware in fatal error condition.\n"); + err = -EIO; + goto fail_unlock; + } + + if (!(priv->status & STATUS_RUNNING)) { + IPW_DEBUG_INFO + ("Attempt to send command while hardware is not running.\n"); + err = -EIO; + goto fail_unlock; + } + + if (priv->status & STATUS_CMD_ACTIVE) { + IPW_DEBUG_INFO + ("Attempt to send command while another command is pending.\n"); + err = -EBUSY; + goto fail_unlock; + } + + if (list_empty(&priv->msg_free_list)) { + IPW_DEBUG_INFO("no available msg buffers\n"); + goto fail_unlock; + } + + priv->status |= STATUS_CMD_ACTIVE; + priv->messages_sent++; + + element = priv->msg_free_list.next; + + packet = list_entry(element, struct ipw2100_tx_packet, list); + packet->jiffy_start = jiffies; + + /* initialize the firmware command packet */ + packet->info.c_struct.cmd->host_command_reg = cmd->host_command; + packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1; + packet->info.c_struct.cmd->host_command_len_reg = + cmd->host_command_length; + packet->info.c_struct.cmd->sequence = cmd->host_command_sequence; + + memcpy(packet->info.c_struct.cmd->host_command_params_reg, + cmd->host_command_parameters, + sizeof(packet->info.c_struct.cmd->host_command_params_reg)); + + list_del(element); + DEC_STAT(&priv->msg_free_stat); + + list_add_tail(element, &priv->msg_pend_list); + INC_STAT(&priv->msg_pend_stat); + + ipw2100_tx_send_commands(priv); + ipw2100_tx_send_data(priv); + + spin_unlock_irqrestore(&priv->low_lock, flags); + + /* + * We must wait for this command to complete before another + * command can be sent... but if we wait more than 3 seconds + * then there is a problem. + */ + + err = + wait_event_interruptible_timeout(priv->wait_command_queue, + !(priv-> + status & STATUS_CMD_ACTIVE), + HOST_COMPLETE_TIMEOUT); + + if (err == 0) { + IPW_DEBUG_INFO("Command completion failed out after %dms.\n", + 1000 * (HOST_COMPLETE_TIMEOUT / HZ)); + priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT; + priv->status &= ~STATUS_CMD_ACTIVE; + schedule_reset(priv); + return -EIO; + } + + if (priv->fatal_error) { + printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n", + priv->net_dev->name); + return -EIO; + } + + /* !!!!! HACK TEST !!!!! + * When lots of debug trace statements are enabled, the driver + * doesn't seem to have as many firmware restart cycles... + * + * As a test, we're sticking in a 1/100s delay here */ + schedule_timeout_uninterruptible(msecs_to_jiffies(10)); + + return 0; + + fail_unlock: + spin_unlock_irqrestore(&priv->low_lock, flags); + + return err; +} + +/* + * Verify the values and data access of the hardware + * No locks needed or used. No functions called. + */ +static int ipw2100_verify(struct ipw2100_priv *priv) +{ + u32 data1, data2; + u32 address; + + u32 val1 = 0x76543210; + u32 val2 = 0xFEDCBA98; + + /* Domain 0 check - all values should be DOA_DEBUG */ + for (address = IPW_REG_DOA_DEBUG_AREA_START; + address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) { + read_register(priv->net_dev, address, &data1); + if (data1 != IPW_DATA_DOA_DEBUG_VALUE) + return -EIO; + } + + /* Domain 1 check - use arbitrary read/write compare */ + for (address = 0; address < 5; address++) { + /* The memory area is not used now */ + write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32, + val1); + write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36, + val2); + read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32, + &data1); + read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36, + &data2); + if (val1 == data1 && val2 == data2) + return 0; + } + + return -EIO; +} + +/* + * + * Loop until the CARD_DISABLED bit is the same value as the + * supplied parameter + * + * TODO: See if it would be more efficient to do a wait/wake + * cycle and have the completion event trigger the wakeup + * + */ +#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli +static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state) +{ + int i; + u32 card_state; + u32 len = sizeof(card_state); + int err; + + for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) { + err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED, + &card_state, &len); + if (err) { + IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal " + "failed.\n"); + return 0; + } + + /* We'll break out if either the HW state says it is + * in the state we want, or if HOST_COMPLETE command + * finishes */ + if ((card_state == state) || + ((priv->status & STATUS_ENABLED) ? + IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) { + if (state == IPW_HW_STATE_ENABLED) + priv->status |= STATUS_ENABLED; + else + priv->status &= ~STATUS_ENABLED; + + return 0; + } + + udelay(50); + } + + IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n", + state ? "DISABLED" : "ENABLED"); + return -EIO; +} + +/********************************************************************* + Procedure : sw_reset_and_clock + Purpose : Asserts s/w reset, asserts clock initialization + and waits for clock stabilization + ********************************************************************/ +static int sw_reset_and_clock(struct ipw2100_priv *priv) +{ + int i; + u32 r; + + // assert s/w reset + write_register(priv->net_dev, IPW_REG_RESET_REG, + IPW_AUX_HOST_RESET_REG_SW_RESET); + + // wait for clock stabilization + for (i = 0; i < 1000; i++) { + udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY); + + // check clock ready bit + read_register(priv->net_dev, IPW_REG_RESET_REG, &r); + if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET) + break; + } + + if (i == 1000) + return -EIO; // TODO: better error value + + /* set "initialization complete" bit to move adapter to + * D0 state */ + write_register(priv->net_dev, IPW_REG_GP_CNTRL, + IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE); + + /* wait for clock stabilization */ + for (i = 0; i < 10000; i++) { + udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4); + + /* check clock ready bit */ + read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r); + if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY) + break; + } + + if (i == 10000) + return -EIO; /* TODO: better error value */ + + /* set D0 standby bit */ + read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r); + write_register(priv->net_dev, IPW_REG_GP_CNTRL, + r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY); + + return 0; +} + +/********************************************************************* + Procedure : ipw2100_download_firmware + Purpose : Initiaze adapter after power on. + The sequence is: + 1. assert s/w reset first! + 2. awake clocks & wait for clock stabilization + 3. hold ARC (don't ask me why...) + 4. load Dino ucode and reset/clock init again + 5. zero-out shared mem + 6. download f/w + *******************************************************************/ +static int ipw2100_download_firmware(struct ipw2100_priv *priv) +{ + u32 address; + int err; + +#ifndef CONFIG_PM + /* Fetch the firmware and microcode */ + struct ipw2100_fw ipw2100_firmware; +#endif + + if (priv->fatal_error) { + IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after " + "fatal error %d. Interface must be brought down.\n", + priv->net_dev->name, priv->fatal_error); + return -EINVAL; + } +#ifdef CONFIG_PM + if (!ipw2100_firmware.version) { + err = ipw2100_get_firmware(priv, &ipw2100_firmware); + if (err) { + IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n", + priv->net_dev->name, err); + priv->fatal_error = IPW2100_ERR_FW_LOAD; + goto fail; + } + } +#else + err = ipw2100_get_firmware(priv, &ipw2100_firmware); + if (err) { + IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n", + priv->net_dev->name, err); + priv->fatal_error = IPW2100_ERR_FW_LOAD; + goto fail; + } +#endif + priv->firmware_version = ipw2100_firmware.version; + + /* s/w reset and clock stabilization */ + err = sw_reset_and_clock(priv); + if (err) { + IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n", + priv->net_dev->name, err); + goto fail; + } + + err = ipw2100_verify(priv); + if (err) { + IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n", + priv->net_dev->name, err); + goto fail; + } + + /* Hold ARC */ + write_nic_dword(priv->net_dev, + IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000); + + /* allow ARC to run */ + write_register(priv->net_dev, IPW_REG_RESET_REG, 0); + + /* load microcode */ + err = ipw2100_ucode_download(priv, &ipw2100_firmware); + if (err) { + printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n", + priv->net_dev->name, err); + goto fail; + } + + /* release ARC */ + write_nic_dword(priv->net_dev, + IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000); + + /* s/w reset and clock stabilization (again!!!) */ + err = sw_reset_and_clock(priv); + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: sw_reset_and_clock failed: %d\n", + priv->net_dev->name, err); + goto fail; + } + + /* load f/w */ + err = ipw2100_fw_download(priv, &ipw2100_firmware); + if (err) { + IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n", + priv->net_dev->name, err); + goto fail; + } +#ifndef CONFIG_PM + /* + * When the .resume method of the driver is called, the other + * part of the system, i.e. the ide driver could still stay in + * the suspend stage. This prevents us from loading the firmware + * from the disk. --YZ + */ + + /* free any storage allocated for firmware image */ + ipw2100_release_firmware(priv, &ipw2100_firmware); +#endif + + /* zero out Domain 1 area indirectly (Si requirement) */ + for (address = IPW_HOST_FW_SHARED_AREA0; + address < IPW_HOST_FW_SHARED_AREA0_END; address += 4) + write_nic_dword(priv->net_dev, address, 0); + for (address = IPW_HOST_FW_SHARED_AREA1; + address < IPW_HOST_FW_SHARED_AREA1_END; address += 4) + write_nic_dword(priv->net_dev, address, 0); + for (address = IPW_HOST_FW_SHARED_AREA2; + address < IPW_HOST_FW_SHARED_AREA2_END; address += 4) + write_nic_dword(priv->net_dev, address, 0); + for (address = IPW_HOST_FW_SHARED_AREA3; + address < IPW_HOST_FW_SHARED_AREA3_END; address += 4) + write_nic_dword(priv->net_dev, address, 0); + for (address = IPW_HOST_FW_INTERRUPT_AREA; + address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4) + write_nic_dword(priv->net_dev, address, 0); + + return 0; + + fail: + ipw2100_release_firmware(priv, &ipw2100_firmware); + return err; +} + +static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv) +{ + if (priv->status & STATUS_INT_ENABLED) + return; + priv->status |= STATUS_INT_ENABLED; + write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK); +} + +static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv) +{ + if (!(priv->status & STATUS_INT_ENABLED)) + return; + priv->status &= ~STATUS_INT_ENABLED; + write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0); +} + +static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv) +{ + struct ipw2100_ordinals *ord = &priv->ordinals; + + IPW_DEBUG_INFO("enter\n"); + + read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1, + &ord->table1_addr); + + read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2, + &ord->table2_addr); + + read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size); + read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size); + + ord->table2_size &= 0x0000FFFF; + + IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size); + IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size); + IPW_DEBUG_INFO("exit\n"); +} + +static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv) +{ + u32 reg = 0; + /* + * Set GPIO 3 writable by FW; GPIO 1 writable + * by driver and enable clock + */ + reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE | + IPW_BIT_GPIO_LED_OFF); + write_register(priv->net_dev, IPW_REG_GPIO, reg); +} + +static int rf_kill_active(struct ipw2100_priv *priv) +{ +#define MAX_RF_KILL_CHECKS 5 +#define RF_KILL_CHECK_DELAY 40 + + unsigned short value = 0; + u32 reg = 0; + int i; + + if (!(priv->hw_features & HW_FEATURE_RFKILL)) { + wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false); + priv->status &= ~STATUS_RF_KILL_HW; + return 0; + } + + for (i = 0; i < MAX_RF_KILL_CHECKS; i++) { + udelay(RF_KILL_CHECK_DELAY); + read_register(priv->net_dev, IPW_REG_GPIO, ®); + value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1); + } + + if (value == 0) { + wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); + priv->status |= STATUS_RF_KILL_HW; + } else { + wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false); + priv->status &= ~STATUS_RF_KILL_HW; + } + + return (value == 0); +} + +static int ipw2100_get_hw_features(struct ipw2100_priv *priv) +{ + u32 addr, len; + u32 val; + + /* + * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1 + */ + len = sizeof(addr); + if (ipw2100_get_ordinal + (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) { + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + return -EIO; + } + + IPW_DEBUG_INFO("EEPROM address: %08X\n", addr); + + /* + * EEPROM version is the byte at offset 0xfd in firmware + * We read 4 bytes, then shift out the byte we actually want */ + read_nic_dword(priv->net_dev, addr + 0xFC, &val); + priv->eeprom_version = (val >> 24) & 0xFF; + IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version); + + /* + * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware + * + * notice that the EEPROM bit is reverse polarity, i.e. + * bit = 0 signifies HW RF kill switch is supported + * bit = 1 signifies HW RF kill switch is NOT supported + */ + read_nic_dword(priv->net_dev, addr + 0x20, &val); + if (!((val >> 24) & 0x01)) + priv->hw_features |= HW_FEATURE_RFKILL; + + IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n", + (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not "); + + return 0; +} + +/* + * Start firmware execution after power on and initialization + * The sequence is: + * 1. Release ARC + * 2. Wait for f/w initialization completes; + */ +static int ipw2100_start_adapter(struct ipw2100_priv *priv) +{ + int i; + u32 inta, inta_mask, gpio; + + IPW_DEBUG_INFO("enter\n"); + + if (priv->status & STATUS_RUNNING) + return 0; + + /* + * Initialize the hw - drive adapter to DO state by setting + * init_done bit. Wait for clk_ready bit and Download + * fw & dino ucode + */ + if (ipw2100_download_firmware(priv)) { + printk(KERN_ERR DRV_NAME + ": %s: Failed to power on the adapter.\n", + priv->net_dev->name); + return -EIO; + } + + /* Clear the Tx, Rx and Msg queues and the r/w indexes + * in the firmware RBD and TBD ring queue */ + ipw2100_queues_initialize(priv); + + ipw2100_hw_set_gpio(priv); + + /* TODO -- Look at disabling interrupts here to make sure none + * get fired during FW initialization */ + + /* Release ARC - clear reset bit */ + write_register(priv->net_dev, IPW_REG_RESET_REG, 0); + + /* wait for f/w initialization complete */ + IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n"); + i = 5000; + do { + schedule_timeout_uninterruptible(msecs_to_jiffies(40)); + /* Todo... wait for sync command ... */ + + read_register(priv->net_dev, IPW_REG_INTA, &inta); + + /* check "init done" bit */ + if (inta & IPW2100_INTA_FW_INIT_DONE) { + /* reset "init done" bit */ + write_register(priv->net_dev, IPW_REG_INTA, + IPW2100_INTA_FW_INIT_DONE); + break; + } + + /* check error conditions : we check these after the firmware + * check so that if there is an error, the interrupt handler + * will see it and the adapter will be reset */ + if (inta & + (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) { + /* clear error conditions */ + write_register(priv->net_dev, IPW_REG_INTA, + IPW2100_INTA_FATAL_ERROR | + IPW2100_INTA_PARITY_ERROR); + } + } while (--i); + + /* Clear out any pending INTAs since we aren't supposed to have + * interrupts enabled at this point... */ + read_register(priv->net_dev, IPW_REG_INTA, &inta); + read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask); + inta &= IPW_INTERRUPT_MASK; + /* Clear out any pending interrupts */ + if (inta & inta_mask) + write_register(priv->net_dev, IPW_REG_INTA, inta); + + IPW_DEBUG_FW("f/w initialization complete: %s\n", + i ? "SUCCESS" : "FAILED"); + + if (!i) { + printk(KERN_WARNING DRV_NAME + ": %s: Firmware did not initialize.\n", + priv->net_dev->name); + return -EIO; + } + + /* allow firmware to write to GPIO1 & GPIO3 */ + read_register(priv->net_dev, IPW_REG_GPIO, &gpio); + + gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK); + + write_register(priv->net_dev, IPW_REG_GPIO, gpio); + + /* Ready to receive commands */ + priv->status |= STATUS_RUNNING; + + /* The adapter has been reset; we are not associated */ + priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED); + + IPW_DEBUG_INFO("exit\n"); + + return 0; +} + +static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv) +{ + if (!priv->fatal_error) + return; + + priv->fatal_errors[priv->fatal_index++] = priv->fatal_error; + priv->fatal_index %= IPW2100_ERROR_QUEUE; + priv->fatal_error = 0; +} + +/* NOTE: Our interrupt is disabled when this method is called */ +static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv) +{ + u32 reg; + int i; + + IPW_DEBUG_INFO("Power cycling the hardware.\n"); + + ipw2100_hw_set_gpio(priv); + + /* Step 1. Stop Master Assert */ + write_register(priv->net_dev, IPW_REG_RESET_REG, + IPW_AUX_HOST_RESET_REG_STOP_MASTER); + + /* Step 2. Wait for stop Master Assert + * (not more than 50us, otherwise ret error */ + i = 5; + do { + udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY); + read_register(priv->net_dev, IPW_REG_RESET_REG, ®); + + if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED) + break; + } while (--i); + + priv->status &= ~STATUS_RESET_PENDING; + + if (!i) { + IPW_DEBUG_INFO + ("exit - waited too long for master assert stop\n"); + return -EIO; + } + + write_register(priv->net_dev, IPW_REG_RESET_REG, + IPW_AUX_HOST_RESET_REG_SW_RESET); + + /* Reset any fatal_error conditions */ + ipw2100_reset_fatalerror(priv); + + /* At this point, the adapter is now stopped and disabled */ + priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING | + STATUS_ASSOCIATED | STATUS_ENABLED); + + return 0; +} + +/* + * Send the CARD_DISABLE_PHY_OFF command to the card to disable it + * + * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent. + * + * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of + * if STATUS_ASSN_LOST is sent. + */ +static int ipw2100_hw_phy_off(struct ipw2100_priv *priv) +{ + +#define HW_PHY_OFF_LOOP_DELAY (msecs_to_jiffies(50)) + + struct host_command cmd = { + .host_command = CARD_DISABLE_PHY_OFF, + .host_command_sequence = 0, + .host_command_length = 0, + }; + int err, i; + u32 val1, val2; + + IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n"); + + /* Turn off the radio */ + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + return err; + + for (i = 0; i < 2500; i++) { + read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1); + read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2); + + if ((val1 & IPW2100_CONTROL_PHY_OFF) && + (val2 & IPW2100_COMMAND_PHY_OFF)) + return 0; + + schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY); + } + + return -EIO; +} + +static int ipw2100_enable_adapter(struct ipw2100_priv *priv) +{ + struct host_command cmd = { + .host_command = HOST_COMPLETE, + .host_command_sequence = 0, + .host_command_length = 0 + }; + int err = 0; + + IPW_DEBUG_HC("HOST_COMPLETE\n"); + + if (priv->status & STATUS_ENABLED) + return 0; + + mutex_lock(&priv->adapter_mutex); + + if (rf_kill_active(priv)) { + IPW_DEBUG_HC("Command aborted due to RF kill active.\n"); + goto fail_up; + } + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) { + IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n"); + goto fail_up; + } + + err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED); + if (err) { + IPW_DEBUG_INFO("%s: card not responding to init command.\n", + priv->net_dev->name); + goto fail_up; + } + + if (priv->stop_hang_check) { + priv->stop_hang_check = 0; + schedule_delayed_work(&priv->hang_check, HZ / 2); + } + + fail_up: + mutex_unlock(&priv->adapter_mutex); + return err; +} + +static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv) +{ +#define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100)) + + struct host_command cmd = { + .host_command = HOST_PRE_POWER_DOWN, + .host_command_sequence = 0, + .host_command_length = 0, + }; + int err, i; + u32 reg; + + if (!(priv->status & STATUS_RUNNING)) + return 0; + + priv->status |= STATUS_STOPPING; + + /* We can only shut down the card if the firmware is operational. So, + * if we haven't reset since a fatal_error, then we can not send the + * shutdown commands. */ + if (!priv->fatal_error) { + /* First, make sure the adapter is enabled so that the PHY_OFF + * command can shut it down */ + ipw2100_enable_adapter(priv); + + err = ipw2100_hw_phy_off(priv); + if (err) + printk(KERN_WARNING DRV_NAME + ": Error disabling radio %d\n", err); + + /* + * If in D0-standby mode going directly to D3 may cause a + * PCI bus violation. Therefore we must change out of the D0 + * state. + * + * Sending the PREPARE_FOR_POWER_DOWN will restrict the + * hardware from going into standby mode and will transition + * out of D0-standby if it is already in that state. + * + * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the + * driver upon completion. Once received, the driver can + * proceed to the D3 state. + * + * Prepare for power down command to fw. This command would + * take HW out of D0-standby and prepare it for D3 state. + * + * Currently FW does not support event notification for this + * event. Therefore, skip waiting for it. Just wait a fixed + * 100ms + */ + IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n"); + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + printk(KERN_WARNING DRV_NAME ": " + "%s: Power down command failed: Error %d\n", + priv->net_dev->name, err); + else + schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY); + } + + priv->status &= ~STATUS_ENABLED; + + /* + * Set GPIO 3 writable by FW; GPIO 1 writable + * by driver and enable clock + */ + ipw2100_hw_set_gpio(priv); + + /* + * Power down adapter. Sequence: + * 1. Stop master assert (RESET_REG[9]=1) + * 2. Wait for stop master (RESET_REG[8]==1) + * 3. S/w reset assert (RESET_REG[7] = 1) + */ + + /* Stop master assert */ + write_register(priv->net_dev, IPW_REG_RESET_REG, + IPW_AUX_HOST_RESET_REG_STOP_MASTER); + + /* wait stop master not more than 50 usec. + * Otherwise return error. */ + for (i = 5; i > 0; i--) { + udelay(10); + + /* Check master stop bit */ + read_register(priv->net_dev, IPW_REG_RESET_REG, ®); + + if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED) + break; + } + + if (i == 0) + printk(KERN_WARNING DRV_NAME + ": %s: Could now power down adapter.\n", + priv->net_dev->name); + + /* assert s/w reset */ + write_register(priv->net_dev, IPW_REG_RESET_REG, + IPW_AUX_HOST_RESET_REG_SW_RESET); + + priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING); + + return 0; +} + +static int ipw2100_disable_adapter(struct ipw2100_priv *priv) +{ + struct host_command cmd = { + .host_command = CARD_DISABLE, + .host_command_sequence = 0, + .host_command_length = 0 + }; + int err = 0; + + IPW_DEBUG_HC("CARD_DISABLE\n"); + + if (!(priv->status & STATUS_ENABLED)) + return 0; + + /* Make sure we clear the associated state */ + priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); + + if (!priv->stop_hang_check) { + priv->stop_hang_check = 1; + cancel_delayed_work(&priv->hang_check); + } + + mutex_lock(&priv->adapter_mutex); + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) { + printk(KERN_WARNING DRV_NAME + ": exit - failed to send CARD_DISABLE command\n"); + goto fail_up; + } + + err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED); + if (err) { + printk(KERN_WARNING DRV_NAME + ": exit - card failed to change to DISABLED\n"); + goto fail_up; + } + + IPW_DEBUG_INFO("TODO: implement scan state machine\n"); + + fail_up: + mutex_unlock(&priv->adapter_mutex); + return err; +} + +static int ipw2100_set_scan_options(struct ipw2100_priv *priv) +{ + struct host_command cmd = { + .host_command = SET_SCAN_OPTIONS, + .host_command_sequence = 0, + .host_command_length = 8 + }; + int err; + + IPW_DEBUG_INFO("enter\n"); + + IPW_DEBUG_SCAN("setting scan options\n"); + + cmd.host_command_parameters[0] = 0; + + if (!(priv->config & CFG_ASSOCIATE)) + cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE; + if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled) + cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL; + if (priv->config & CFG_PASSIVE_SCAN) + cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE; + + cmd.host_command_parameters[1] = priv->channel_mask; + + err = ipw2100_hw_send_command(priv, &cmd); + + IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n", + cmd.host_command_parameters[0]); + + return err; +} + +static int ipw2100_start_scan(struct ipw2100_priv *priv) +{ + struct host_command cmd = { + .host_command = BROADCAST_SCAN, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + IPW_DEBUG_HC("START_SCAN\n"); + + cmd.host_command_parameters[0] = 0; + + /* No scanning if in monitor mode */ + if (priv->ieee->iw_mode == IW_MODE_MONITOR) + return 1; + + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_SCAN("Scan requested while already in scan...\n"); + return 0; + } + + IPW_DEBUG_INFO("enter\n"); + + /* Not clearing here; doing so makes iwlist always return nothing... + * + * We should modify the table logic to use aging tables vs. clearing + * the table on each scan start. + */ + IPW_DEBUG_SCAN("starting scan\n"); + + priv->status |= STATUS_SCANNING; + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + priv->status &= ~STATUS_SCANNING; + + IPW_DEBUG_INFO("exit\n"); + + return err; +} + +static const struct libipw_geo ipw_geos[] = { + { /* Restricted */ + "---", + .bg_channels = 14, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, {2467, 12}, + {2472, 13}, {2484, 14}}, + }, +}; + +static int ipw2100_up(struct ipw2100_priv *priv, int deferred) +{ + unsigned long flags; + int err = 0; + u32 lock; + u32 ord_len = sizeof(lock); + + /* Age scan list entries found before suspend */ + if (priv->suspend_time) { + libipw_networks_age(priv->ieee, priv->suspend_time); + priv->suspend_time = 0; + } + + /* Quiet if manually disabled. */ + if (priv->status & STATUS_RF_KILL_SW) { + IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable " + "switch\n", priv->net_dev->name); + return 0; + } + + /* the ipw2100 hardware really doesn't want power management delays + * longer than 175usec + */ + cpu_latency_qos_update_request(&ipw2100_pm_qos_req, 175); + + /* If the interrupt is enabled, turn it off... */ + spin_lock_irqsave(&priv->low_lock, flags); + ipw2100_disable_interrupts(priv); + + /* Reset any fatal_error conditions */ + ipw2100_reset_fatalerror(priv); + spin_unlock_irqrestore(&priv->low_lock, flags); + + if (priv->status & STATUS_POWERED || + (priv->status & STATUS_RESET_PENDING)) { + /* Power cycle the card ... */ + err = ipw2100_power_cycle_adapter(priv); + if (err) { + printk(KERN_WARNING DRV_NAME + ": %s: Could not cycle adapter.\n", + priv->net_dev->name); + goto exit; + } + } else + priv->status |= STATUS_POWERED; + + /* Load the firmware, start the clocks, etc. */ + err = ipw2100_start_adapter(priv); + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: Failed to start the firmware.\n", + priv->net_dev->name); + goto exit; + } + + ipw2100_initialize_ordinals(priv); + + /* Determine capabilities of this particular HW configuration */ + err = ipw2100_get_hw_features(priv); + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: Failed to determine HW features.\n", + priv->net_dev->name); + goto exit; + } + + /* Initialize the geo */ + libipw_set_geo(priv->ieee, &ipw_geos[0]); + priv->ieee->freq_band = LIBIPW_24GHZ_BAND; + + lock = LOCK_NONE; + err = ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len); + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: Failed to clear ordinal lock.\n", + priv->net_dev->name); + goto exit; + } + + priv->status &= ~STATUS_SCANNING; + + if (rf_kill_active(priv)) { + printk(KERN_INFO "%s: Radio is disabled by RF switch.\n", + priv->net_dev->name); + + if (priv->stop_rf_kill) { + priv->stop_rf_kill = 0; + schedule_delayed_work(&priv->rf_kill, + round_jiffies_relative(HZ)); + } + + deferred = 1; + } + + /* Turn on the interrupt so that commands can be processed */ + ipw2100_enable_interrupts(priv); + + /* Send all of the commands that must be sent prior to + * HOST_COMPLETE */ + err = ipw2100_adapter_setup(priv); + if (err) { + printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n", + priv->net_dev->name); + goto exit; + } + + if (!deferred) { + /* Enable the adapter - sends HOST_COMPLETE */ + err = ipw2100_enable_adapter(priv); + if (err) { + printk(KERN_ERR DRV_NAME ": " + "%s: failed in call to enable adapter.\n", + priv->net_dev->name); + ipw2100_hw_stop_adapter(priv); + goto exit; + } + + /* Start a scan . . . */ + ipw2100_set_scan_options(priv); + ipw2100_start_scan(priv); + } + + exit: + return err; +} + +static void ipw2100_down(struct ipw2100_priv *priv) +{ + unsigned long flags; + union iwreq_data wrqu = { + .ap_addr = { + .sa_family = ARPHRD_ETHER} + }; + int associated = priv->status & STATUS_ASSOCIATED; + + /* Kill the RF switch timer */ + if (!priv->stop_rf_kill) { + priv->stop_rf_kill = 1; + cancel_delayed_work(&priv->rf_kill); + } + + /* Kill the firmware hang check timer */ + if (!priv->stop_hang_check) { + priv->stop_hang_check = 1; + cancel_delayed_work(&priv->hang_check); + } + + /* Kill any pending resets */ + if (priv->status & STATUS_RESET_PENDING) + cancel_delayed_work(&priv->reset_work); + + /* Make sure the interrupt is on so that FW commands will be + * processed correctly */ + spin_lock_irqsave(&priv->low_lock, flags); + ipw2100_enable_interrupts(priv); + spin_unlock_irqrestore(&priv->low_lock, flags); + + if (ipw2100_hw_stop_adapter(priv)) + printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n", + priv->net_dev->name); + + /* Do not disable the interrupt until _after_ we disable + * the adaptor. Otherwise the CARD_DISABLE command will never + * be ack'd by the firmware */ + spin_lock_irqsave(&priv->low_lock, flags); + ipw2100_disable_interrupts(priv); + spin_unlock_irqrestore(&priv->low_lock, flags); + + cpu_latency_qos_update_request(&ipw2100_pm_qos_req, + PM_QOS_DEFAULT_VALUE); + + /* We have to signal any supplicant if we are disassociating */ + if (associated) + wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); + + priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); + netif_carrier_off(priv->net_dev); + netif_stop_queue(priv->net_dev); +} + +static int ipw2100_wdev_init(struct net_device *dev) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + const struct libipw_geo *geo = libipw_get_geo(priv->ieee); + struct wireless_dev *wdev = &priv->ieee->wdev; + int i; + + memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN); + + /* fill-out priv->ieee->bg_band */ + if (geo->bg_channels) { + struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band; + + bg_band->band = NL80211_BAND_2GHZ; + bg_band->n_channels = geo->bg_channels; + bg_band->channels = kcalloc(geo->bg_channels, + sizeof(struct ieee80211_channel), + GFP_KERNEL); + if (!bg_band->channels) { + ipw2100_down(priv); + return -ENOMEM; + } + /* translate geo->bg to bg_band.channels */ + for (i = 0; i < geo->bg_channels; i++) { + bg_band->channels[i].band = NL80211_BAND_2GHZ; + bg_band->channels[i].center_freq = geo->bg[i].freq; + bg_band->channels[i].hw_value = geo->bg[i].channel; + bg_band->channels[i].max_power = geo->bg[i].max_power; + if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) + bg_band->channels[i].flags |= + IEEE80211_CHAN_NO_IR; + if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS) + bg_band->channels[i].flags |= + IEEE80211_CHAN_NO_IR; + if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT) + bg_band->channels[i].flags |= + IEEE80211_CHAN_RADAR; + /* No equivalent for LIBIPW_CH_80211H_RULES, + LIBIPW_CH_UNIFORM_SPREADING, or + LIBIPW_CH_B_ONLY... */ + } + /* point at bitrate info */ + bg_band->bitrates = ipw2100_bg_rates; + bg_band->n_bitrates = RATE_COUNT; + + wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band; + } + + wdev->wiphy->cipher_suites = ipw_cipher_suites; + wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites); + + set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev); + if (wiphy_register(wdev->wiphy)) + return -EIO; + return 0; +} + +static void ipw2100_reset_adapter(struct work_struct *work) +{ + struct ipw2100_priv *priv = + container_of(work, struct ipw2100_priv, reset_work.work); + unsigned long flags; + union iwreq_data wrqu = { + .ap_addr = { + .sa_family = ARPHRD_ETHER} + }; + int associated = priv->status & STATUS_ASSOCIATED; + + spin_lock_irqsave(&priv->low_lock, flags); + IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name); + priv->resets++; + priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); + priv->status |= STATUS_SECURITY_UPDATED; + + /* Force a power cycle even if interface hasn't been opened + * yet */ + cancel_delayed_work(&priv->reset_work); + priv->status |= STATUS_RESET_PENDING; + spin_unlock_irqrestore(&priv->low_lock, flags); + + mutex_lock(&priv->action_mutex); + /* stop timed checks so that they don't interfere with reset */ + priv->stop_hang_check = 1; + cancel_delayed_work(&priv->hang_check); + + /* We have to signal any supplicant if we are disassociating */ + if (associated) + wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); + + ipw2100_up(priv, 0); + mutex_unlock(&priv->action_mutex); + +} + +static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status) +{ + +#define MAC_ASSOCIATION_READ_DELAY (HZ) + int ret; + unsigned int len, essid_len; + char essid[IW_ESSID_MAX_SIZE]; + u32 txrate; + u32 chan; + char *txratename; + u8 bssid[ETH_ALEN]; + + /* + * TBD: BSSID is usually 00:00:00:00:00:00 here and not + * an actual MAC of the AP. Seems like FW sets this + * address too late. Read it later and expose through + * /proc or schedule a later task to query and update + */ + + essid_len = IW_ESSID_MAX_SIZE; + ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, + essid, &essid_len); + if (ret) { + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + return; + } + + len = sizeof(u32); + ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len); + if (ret) { + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + return; + } + + len = sizeof(u32); + ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len); + if (ret) { + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + return; + } + len = ETH_ALEN; + ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid, + &len); + if (ret) { + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + return; + } + memcpy(priv->ieee->bssid, bssid, ETH_ALEN); + + switch (txrate) { + case TX_RATE_1_MBIT: + txratename = "1Mbps"; + break; + case TX_RATE_2_MBIT: + txratename = "2Mbsp"; + break; + case TX_RATE_5_5_MBIT: + txratename = "5.5Mbps"; + break; + case TX_RATE_11_MBIT: + txratename = "11Mbps"; + break; + default: + IPW_DEBUG_INFO("Unknown rate: %d\n", txrate); + txratename = "unknown rate"; + break; + } + + IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n", + priv->net_dev->name, essid_len, essid, + txratename, chan, bssid); + + /* now we copy read ssid into dev */ + if (!(priv->config & CFG_STATIC_ESSID)) { + priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE); + memcpy(priv->essid, essid, priv->essid_len); + } + priv->channel = chan; + memcpy(priv->bssid, bssid, ETH_ALEN); + + priv->status |= STATUS_ASSOCIATING; + priv->connect_start = ktime_get_boottime_seconds(); + + schedule_delayed_work(&priv->wx_event_work, HZ / 10); +} + +static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid, + int length, int batch_mode) +{ + int ssid_len = min(length, IW_ESSID_MAX_SIZE); + struct host_command cmd = { + .host_command = SSID, + .host_command_sequence = 0, + .host_command_length = ssid_len + }; + int err; + + IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid); + + if (ssid_len) + memcpy(cmd.host_command_parameters, essid, ssid_len); + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to + * disable auto association -- so we cheat by setting a bogus SSID */ + if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) { + int i; + u8 *bogus = (u8 *) cmd.host_command_parameters; + for (i = 0; i < IW_ESSID_MAX_SIZE; i++) + bogus[i] = 0x18 + i; + cmd.host_command_length = IW_ESSID_MAX_SIZE; + } + + /* NOTE: We always send the SSID command even if the provided ESSID is + * the same as what we currently think is set. */ + + err = ipw2100_hw_send_command(priv, &cmd); + if (!err) { + memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len); + memcpy(priv->essid, essid, ssid_len); + priv->essid_len = ssid_len; + } + + if (!batch_mode) { + if (ipw2100_enable_adapter(priv)) + err = -EIO; + } + + return err; +} + +static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status) +{ + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC, + "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid, + priv->bssid); + + priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); + + if (priv->status & STATUS_STOPPING) { + IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n"); + return; + } + + eth_zero_addr(priv->bssid); + eth_zero_addr(priv->ieee->bssid); + + netif_carrier_off(priv->net_dev); + netif_stop_queue(priv->net_dev); + + if (!(priv->status & STATUS_RUNNING)) + return; + + if (priv->status & STATUS_SECURITY_UPDATED) + schedule_delayed_work(&priv->security_work, 0); + + schedule_delayed_work(&priv->wx_event_work, 0); +} + +static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status) +{ + IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n", + priv->net_dev->name); + + /* RF_KILL is now enabled (else we wouldn't be here) */ + wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); + priv->status |= STATUS_RF_KILL_HW; + + /* Make sure the RF Kill check timer is running */ + priv->stop_rf_kill = 0; + mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ)); +} + +static void ipw2100_scan_event(struct work_struct *work) +{ + struct ipw2100_priv *priv = container_of(work, struct ipw2100_priv, + scan_event.work); + union iwreq_data wrqu; + + wrqu.data.length = 0; + wrqu.data.flags = 0; + wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL); +} + +static void isr_scan_complete(struct ipw2100_priv *priv, u32 status) +{ + IPW_DEBUG_SCAN("scan complete\n"); + /* Age the scan results... */ + priv->ieee->scans++; + priv->status &= ~STATUS_SCANNING; + + /* Only userspace-requested scan completion events go out immediately */ + if (!priv->user_requested_scan) { + schedule_delayed_work(&priv->scan_event, + round_jiffies_relative(msecs_to_jiffies(4000))); + } else { + priv->user_requested_scan = 0; + mod_delayed_work(system_wq, &priv->scan_event, 0); + } +} + +#ifdef CONFIG_IPW2100_DEBUG +#define IPW2100_HANDLER(v, f) { v, f, # v } +struct ipw2100_status_indicator { + int status; + void (*cb) (struct ipw2100_priv * priv, u32 status); + char *name; +}; +#else +#define IPW2100_HANDLER(v, f) { v, f } +struct ipw2100_status_indicator { + int status; + void (*cb) (struct ipw2100_priv * priv, u32 status); +}; +#endif /* CONFIG_IPW2100_DEBUG */ + +static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status) +{ + IPW_DEBUG_SCAN("Scanning...\n"); + priv->status |= STATUS_SCANNING; +} + +static const struct ipw2100_status_indicator status_handlers[] = { + IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL), + IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL), + IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated), + IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost), + IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL), + IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete), + IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL), + IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL), + IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill), + IPW2100_HANDLER(IPW_STATE_DISABLED, NULL), + IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL), + IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning), + IPW2100_HANDLER(-1, NULL) +}; + +static void isr_status_change(struct ipw2100_priv *priv, int status) +{ + int i; + + if (status == IPW_STATE_SCANNING && + priv->status & STATUS_ASSOCIATED && + !(priv->status & STATUS_SCANNING)) { + IPW_DEBUG_INFO("Scan detected while associated, with " + "no scan request. Restarting firmware.\n"); + + /* Wake up any sleeping jobs */ + schedule_reset(priv); + } + + for (i = 0; status_handlers[i].status != -1; i++) { + if (status == status_handlers[i].status) { + IPW_DEBUG_NOTIF("Status change: %s\n", + status_handlers[i].name); + if (status_handlers[i].cb) + status_handlers[i].cb(priv, status); + priv->wstats.status = status; + return; + } + } + + IPW_DEBUG_NOTIF("unknown status received: %04x\n", status); +} + +static void isr_rx_complete_command(struct ipw2100_priv *priv, + struct ipw2100_cmd_header *cmd) +{ +#ifdef CONFIG_IPW2100_DEBUG + if (cmd->host_command_reg < ARRAY_SIZE(command_types)) { + IPW_DEBUG_HC("Command completed '%s (%d)'\n", + command_types[cmd->host_command_reg], + cmd->host_command_reg); + } +#endif + if (cmd->host_command_reg == HOST_COMPLETE) + priv->status |= STATUS_ENABLED; + + if (cmd->host_command_reg == CARD_DISABLE) + priv->status &= ~STATUS_ENABLED; + + priv->status &= ~STATUS_CMD_ACTIVE; + + wake_up_interruptible(&priv->wait_command_queue); +} + +#ifdef CONFIG_IPW2100_DEBUG +static const char *frame_types[] = { + "COMMAND_STATUS_VAL", + "STATUS_CHANGE_VAL", + "P80211_DATA_VAL", + "P8023_DATA_VAL", + "HOST_NOTIFICATION_VAL" +}; +#endif + +static int ipw2100_alloc_skb(struct ipw2100_priv *priv, + struct ipw2100_rx_packet *packet) +{ + packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx)); + if (!packet->skb) + return -ENOMEM; + + packet->rxp = (struct ipw2100_rx *)packet->skb->data; + packet->dma_addr = dma_map_single(&priv->pci_dev->dev, + packet->skb->data, + sizeof(struct ipw2100_rx), + DMA_FROM_DEVICE); + if (dma_mapping_error(&priv->pci_dev->dev, packet->dma_addr)) { + dev_kfree_skb(packet->skb); + return -ENOMEM; + } + + return 0; +} + +#define SEARCH_ERROR 0xffffffff +#define SEARCH_FAIL 0xfffffffe +#define SEARCH_SUCCESS 0xfffffff0 +#define SEARCH_DISCARD 0 +#define SEARCH_SNAPSHOT 1 + +#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff)) +static void ipw2100_snapshot_free(struct ipw2100_priv *priv) +{ + int i; + if (!priv->snapshot[0]) + return; + for (i = 0; i < 0x30; i++) + kfree(priv->snapshot[i]); + priv->snapshot[0] = NULL; +} + +#ifdef IPW2100_DEBUG_C3 +static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv) +{ + int i; + if (priv->snapshot[0]) + return 1; + for (i = 0; i < 0x30; i++) { + priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC); + if (!priv->snapshot[i]) { + IPW_DEBUG_INFO("%s: Error allocating snapshot " + "buffer %d\n", priv->net_dev->name, i); + while (i > 0) + kfree(priv->snapshot[--i]); + priv->snapshot[0] = NULL; + return 0; + } + } + + return 1; +} + +static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf, + size_t len, int mode) +{ + u32 i, j; + u32 tmp; + u8 *s, *d; + u32 ret; + + s = in_buf; + if (mode == SEARCH_SNAPSHOT) { + if (!ipw2100_snapshot_alloc(priv)) + mode = SEARCH_DISCARD; + } + + for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) { + read_nic_dword(priv->net_dev, i, &tmp); + if (mode == SEARCH_SNAPSHOT) + *(u32 *) SNAPSHOT_ADDR(i) = tmp; + if (ret == SEARCH_FAIL) { + d = (u8 *) & tmp; + for (j = 0; j < 4; j++) { + if (*s != *d) { + s = in_buf; + continue; + } + + s++; + d++; + + if ((s - in_buf) == len) + ret = (i + j) - len + 1; + } + } else if (mode == SEARCH_DISCARD) + return ret; + } + + return ret; +} +#endif + +/* + * + * 0) Disconnect the SKB from the firmware (just unmap) + * 1) Pack the ETH header into the SKB + * 2) Pass the SKB to the network stack + * + * When packet is provided by the firmware, it contains the following: + * + * . libipw_hdr + * . libipw_snap_hdr + * + * The size of the constructed ethernet + * + */ +#ifdef IPW2100_RX_DEBUG +static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH]; +#endif + +static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i) +{ +#ifdef IPW2100_DEBUG_C3 + struct ipw2100_status *status = &priv->status_queue.drv[i]; + u32 match, reg; + int j; +#endif + + IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n", + i * sizeof(struct ipw2100_status)); + +#ifdef IPW2100_DEBUG_C3 + /* Halt the firmware so we can get a good image */ + write_register(priv->net_dev, IPW_REG_RESET_REG, + IPW_AUX_HOST_RESET_REG_STOP_MASTER); + j = 5; + do { + udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY); + read_register(priv->net_dev, IPW_REG_RESET_REG, ®); + + if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED) + break; + } while (j--); + + match = ipw2100_match_buf(priv, (u8 *) status, + sizeof(struct ipw2100_status), + SEARCH_SNAPSHOT); + if (match < SEARCH_SUCCESS) + IPW_DEBUG_INFO("%s: DMA status match in Firmware at " + "offset 0x%06X, length %d:\n", + priv->net_dev->name, match, + sizeof(struct ipw2100_status)); + else + IPW_DEBUG_INFO("%s: No DMA status match in " + "Firmware.\n", priv->net_dev->name); + + printk_buf((u8 *) priv->status_queue.drv, + sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH); +#endif + + priv->fatal_error = IPW2100_ERR_C3_CORRUPTION; + priv->net_dev->stats.rx_errors++; + schedule_reset(priv); +} + +static void isr_rx(struct ipw2100_priv *priv, int i, + struct libipw_rx_stats *stats) +{ + struct net_device *dev = priv->net_dev; + struct ipw2100_status *status = &priv->status_queue.drv[i]; + struct ipw2100_rx_packet *packet = &priv->rx_buffers[i]; + + IPW_DEBUG_RX("Handler...\n"); + + if (unlikely(status->frame_size > skb_tailroom(packet->skb))) { + IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!" + " Dropping.\n", + dev->name, + status->frame_size, skb_tailroom(packet->skb)); + dev->stats.rx_errors++; + return; + } + + if (unlikely(!netif_running(dev))) { + dev->stats.rx_errors++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); + return; + } + + if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR && + !(priv->status & STATUS_ASSOCIATED))) { + IPW_DEBUG_DROP("Dropping packet while not associated.\n"); + priv->wstats.discard.misc++; + return; + } + + dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr, + sizeof(struct ipw2100_rx), DMA_FROM_DEVICE); + + skb_put(packet->skb, status->frame_size); + +#ifdef IPW2100_RX_DEBUG + /* Make a copy of the frame so we can dump it to the logs if + * libipw_rx fails */ + skb_copy_from_linear_data(packet->skb, packet_data, + min_t(u32, status->frame_size, + IPW_RX_NIC_BUFFER_LENGTH)); +#endif + + if (!libipw_rx(priv->ieee, packet->skb, stats)) { +#ifdef IPW2100_RX_DEBUG + IPW_DEBUG_DROP("%s: Non consumed packet:\n", + dev->name); + printk_buf(IPW_DL_DROP, packet_data, status->frame_size); +#endif + dev->stats.rx_errors++; + + /* libipw_rx failed, so it didn't free the SKB */ + dev_kfree_skb_any(packet->skb); + packet->skb = NULL; + } + + /* We need to allocate a new SKB and attach it to the RDB. */ + if (unlikely(ipw2100_alloc_skb(priv, packet))) { + printk(KERN_WARNING DRV_NAME ": " + "%s: Unable to allocate SKB onto RBD ring - disabling " + "adapter.\n", dev->name); + /* TODO: schedule adapter shutdown */ + IPW_DEBUG_INFO("TODO: Shutdown adapter...\n"); + } + + /* Update the RDB entry */ + priv->rx_queue.drv[i].host_addr = packet->dma_addr; +} + +#ifdef CONFIG_IPW2100_MONITOR + +static void isr_rx_monitor(struct ipw2100_priv *priv, int i, + struct libipw_rx_stats *stats) +{ + struct net_device *dev = priv->net_dev; + struct ipw2100_status *status = &priv->status_queue.drv[i]; + struct ipw2100_rx_packet *packet = &priv->rx_buffers[i]; + + /* Magic struct that slots into the radiotap header -- no reason + * to build this manually element by element, we can write it much + * more efficiently than we can parse it. ORDER MATTERS HERE */ + struct ipw_rt_hdr { + struct ieee80211_radiotap_header rt_hdr; + s8 rt_dbmsignal; /* signal in dbM, kluged to signed */ + } *ipw_rt; + + IPW_DEBUG_RX("Handler...\n"); + + if (unlikely(status->frame_size > skb_tailroom(packet->skb) - + sizeof(struct ipw_rt_hdr))) { + IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!" + " Dropping.\n", + dev->name, + status->frame_size, + skb_tailroom(packet->skb)); + dev->stats.rx_errors++; + return; + } + + if (unlikely(!netif_running(dev))) { + dev->stats.rx_errors++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); + return; + } + + if (unlikely(priv->config & CFG_CRC_CHECK && + status->flags & IPW_STATUS_FLAG_CRC_ERROR)) { + IPW_DEBUG_RX("CRC error in packet. Dropping.\n"); + dev->stats.rx_errors++; + return; + } + + dma_unmap_single(&priv->pci_dev->dev, packet->dma_addr, + sizeof(struct ipw2100_rx), DMA_FROM_DEVICE); + memmove(packet->skb->data + sizeof(struct ipw_rt_hdr), + packet->skb->data, status->frame_size); + + ipw_rt = (struct ipw_rt_hdr *) packet->skb->data; + + ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; + ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ + ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */ + + ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL); + + ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM; + + skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr)); + + if (!libipw_rx(priv->ieee, packet->skb, stats)) { + dev->stats.rx_errors++; + + /* libipw_rx failed, so it didn't free the SKB */ + dev_kfree_skb_any(packet->skb); + packet->skb = NULL; + } + + /* We need to allocate a new SKB and attach it to the RDB. */ + if (unlikely(ipw2100_alloc_skb(priv, packet))) { + IPW_DEBUG_WARNING( + "%s: Unable to allocate SKB onto RBD ring - disabling " + "adapter.\n", dev->name); + /* TODO: schedule adapter shutdown */ + IPW_DEBUG_INFO("TODO: Shutdown adapter...\n"); + } + + /* Update the RDB entry */ + priv->rx_queue.drv[i].host_addr = packet->dma_addr; +} + +#endif + +static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i) +{ + struct ipw2100_status *status = &priv->status_queue.drv[i]; + struct ipw2100_rx *u = priv->rx_buffers[i].rxp; + u16 frame_type = status->status_fields & STATUS_TYPE_MASK; + + switch (frame_type) { + case COMMAND_STATUS_VAL: + return (status->frame_size != sizeof(u->rx_data.command)); + case STATUS_CHANGE_VAL: + return (status->frame_size != sizeof(u->rx_data.status)); + case HOST_NOTIFICATION_VAL: + return (status->frame_size < sizeof(u->rx_data.notification)); + case P80211_DATA_VAL: + case P8023_DATA_VAL: +#ifdef CONFIG_IPW2100_MONITOR + return 0; +#else + switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) { + case IEEE80211_FTYPE_MGMT: + case IEEE80211_FTYPE_CTL: + return 0; + case IEEE80211_FTYPE_DATA: + return (status->frame_size > + IPW_MAX_802_11_PAYLOAD_LENGTH); + } +#endif + } + + return 1; +} + +/* + * ipw2100 interrupts are disabled at this point, and the ISR + * is the only code that calls this method. So, we do not need + * to play with any locks. + * + * RX Queue works as follows: + * + * Read index - firmware places packet in entry identified by the + * Read index and advances Read index. In this manner, + * Read index will always point to the next packet to + * be filled--but not yet valid. + * + * Write index - driver fills this entry with an unused RBD entry. + * This entry has not filled by the firmware yet. + * + * In between the W and R indexes are the RBDs that have been received + * but not yet processed. + * + * The process of handling packets will start at WRITE + 1 and advance + * until it reaches the READ index. + * + * The WRITE index is cached in the variable 'priv->rx_queue.next'. + * + */ +static void __ipw2100_rx_process(struct ipw2100_priv *priv) +{ + struct ipw2100_bd_queue *rxq = &priv->rx_queue; + struct ipw2100_status_queue *sq = &priv->status_queue; + struct ipw2100_rx_packet *packet; + u16 frame_type; + u32 r, w, i, s; + struct ipw2100_rx *u; + struct libipw_rx_stats stats = { + .mac_time = jiffies, + }; + + read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r); + read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w); + + if (r >= rxq->entries) { + IPW_DEBUG_RX("exit - bad read index\n"); + return; + } + + i = (rxq->next + 1) % rxq->entries; + s = i; + while (i != r) { + /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n", + r, rxq->next, i); */ + + packet = &priv->rx_buffers[i]; + + /* Sync the DMA for the RX buffer so CPU is sure to get + * the correct values */ + dma_sync_single_for_cpu(&priv->pci_dev->dev, packet->dma_addr, + sizeof(struct ipw2100_rx), + DMA_FROM_DEVICE); + + if (unlikely(ipw2100_corruption_check(priv, i))) { + ipw2100_corruption_detected(priv, i); + goto increment; + } + + u = packet->rxp; + frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK; + stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM; + stats.len = sq->drv[i].frame_size; + + stats.mask = 0; + if (stats.rssi != 0) + stats.mask |= LIBIPW_STATMASK_RSSI; + stats.freq = LIBIPW_24GHZ_BAND; + + IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n", + priv->net_dev->name, frame_types[frame_type], + stats.len); + + switch (frame_type) { + case COMMAND_STATUS_VAL: + /* Reset Rx watchdog */ + isr_rx_complete_command(priv, &u->rx_data.command); + break; + + case STATUS_CHANGE_VAL: + isr_status_change(priv, u->rx_data.status); + break; + + case P80211_DATA_VAL: + case P8023_DATA_VAL: +#ifdef CONFIG_IPW2100_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + isr_rx_monitor(priv, i, &stats); + break; + } +#endif + if (stats.len < sizeof(struct libipw_hdr_3addr)) + break; + switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) { + case IEEE80211_FTYPE_MGMT: + libipw_rx_mgt(priv->ieee, + &u->rx_data.header, &stats); + break; + + case IEEE80211_FTYPE_CTL: + break; + + case IEEE80211_FTYPE_DATA: + isr_rx(priv, i, &stats); + break; + + } + break; + } + + increment: + /* clear status field associated with this RBD */ + rxq->drv[i].status.info.field = 0; + + i = (i + 1) % rxq->entries; + } + + if (i != s) { + /* backtrack one entry, wrapping to end if at 0 */ + rxq->next = (i ? i : rxq->entries) - 1; + + write_register(priv->net_dev, + IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next); + } +} + +/* + * __ipw2100_tx_process + * + * This routine will determine whether the next packet on + * the fw_pend_list has been processed by the firmware yet. + * + * If not, then it does nothing and returns. + * + * If so, then it removes the item from the fw_pend_list, frees + * any associated storage, and places the item back on the + * free list of its source (either msg_free_list or tx_free_list) + * + * TX Queue works as follows: + * + * Read index - points to the next TBD that the firmware will + * process. The firmware will read the data, and once + * done processing, it will advance the Read index. + * + * Write index - driver fills this entry with an constructed TBD + * entry. The Write index is not advanced until the + * packet has been configured. + * + * In between the W and R indexes are the TBDs that have NOT been + * processed. Lagging behind the R index are packets that have + * been processed but have not been freed by the driver. + * + * In order to free old storage, an internal index will be maintained + * that points to the next packet to be freed. When all used + * packets have been freed, the oldest index will be the same as the + * firmware's read index. + * + * The OLDEST index is cached in the variable 'priv->tx_queue.oldest' + * + * Because the TBD structure can not contain arbitrary data, the + * driver must keep an internal queue of cached allocations such that + * it can put that data back into the tx_free_list and msg_free_list + * for use by future command and data packets. + * + */ +static int __ipw2100_tx_process(struct ipw2100_priv *priv) +{ + struct ipw2100_bd_queue *txq = &priv->tx_queue; + struct ipw2100_bd *tbd; + struct list_head *element; + struct ipw2100_tx_packet *packet; + int descriptors_used; + int e, i; + u32 r, w, frag_num = 0; + + if (list_empty(&priv->fw_pend_list)) + return 0; + + element = priv->fw_pend_list.next; + + packet = list_entry(element, struct ipw2100_tx_packet, list); + tbd = &txq->drv[packet->index]; + + /* Determine how many TBD entries must be finished... */ + switch (packet->type) { + case COMMAND: + /* COMMAND uses only one slot; don't advance */ + descriptors_used = 1; + e = txq->oldest; + break; + + case DATA: + /* DATA uses two slots; advance and loop position. */ + descriptors_used = tbd->num_fragments; + frag_num = tbd->num_fragments - 1; + e = txq->oldest + frag_num; + e %= txq->entries; + break; + + default: + printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n", + priv->net_dev->name); + return 0; + } + + /* if the last TBD is not done by NIC yet, then packet is + * not ready to be released. + * + */ + read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX, + &r); + read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX, + &w); + if (w != txq->next) + printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n", + priv->net_dev->name); + + /* + * txq->next is the index of the last packet written txq->oldest is + * the index of the r is the index of the next packet to be read by + * firmware + */ + + /* + * Quick graphic to help you visualize the following + * if / else statement + * + * ===>| s---->|=============== + * e>| + * | a | b | c | d | e | f | g | h | i | j | k | l + * r---->| + * w + * + * w - updated by driver + * r - updated by firmware + * s - start of oldest BD entry (txq->oldest) + * e - end of oldest BD entry + * + */ + if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) { + IPW_DEBUG_TX("exit - no processed packets ready to release.\n"); + return 0; + } + + list_del(element); + DEC_STAT(&priv->fw_pend_stat); + +#ifdef CONFIG_IPW2100_DEBUG + { + i = txq->oldest; + IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i, + &txq->drv[i], + (u32) (txq->nic + i * sizeof(struct ipw2100_bd)), + txq->drv[i].host_addr, txq->drv[i].buf_length); + + if (packet->type == DATA) { + i = (i + 1) % txq->entries; + + IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i, + &txq->drv[i], + (u32) (txq->nic + i * + sizeof(struct ipw2100_bd)), + (u32) txq->drv[i].host_addr, + txq->drv[i].buf_length); + } + } +#endif + + switch (packet->type) { + case DATA: + if (txq->drv[txq->oldest].status.info.fields.txType != 0) + printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. " + "Expecting DATA TBD but pulled " + "something else: ids %d=%d.\n", + priv->net_dev->name, txq->oldest, packet->index); + + /* DATA packet; we have to unmap and free the SKB */ + for (i = 0; i < frag_num; i++) { + tbd = &txq->drv[(packet->index + 1 + i) % txq->entries]; + + IPW_DEBUG_TX("TX%d P=%08x L=%d\n", + (packet->index + 1 + i) % txq->entries, + tbd->host_addr, tbd->buf_length); + + dma_unmap_single(&priv->pci_dev->dev, tbd->host_addr, + tbd->buf_length, DMA_TO_DEVICE); + } + + libipw_txb_free(packet->info.d_struct.txb); + packet->info.d_struct.txb = NULL; + + list_add_tail(element, &priv->tx_free_list); + INC_STAT(&priv->tx_free_stat); + + /* We have a free slot in the Tx queue, so wake up the + * transmit layer if it is stopped. */ + if (priv->status & STATUS_ASSOCIATED) + netif_wake_queue(priv->net_dev); + + /* A packet was processed by the hardware, so update the + * watchdog */ + netif_trans_update(priv->net_dev); + + break; + + case COMMAND: + if (txq->drv[txq->oldest].status.info.fields.txType != 1) + printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. " + "Expecting COMMAND TBD but pulled " + "something else: ids %d=%d.\n", + priv->net_dev->name, txq->oldest, packet->index); + +#ifdef CONFIG_IPW2100_DEBUG + if (packet->info.c_struct.cmd->host_command_reg < + ARRAY_SIZE(command_types)) + IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n", + command_types[packet->info.c_struct.cmd-> + host_command_reg], + packet->info.c_struct.cmd-> + host_command_reg, + packet->info.c_struct.cmd->cmd_status_reg); +#endif + + list_add_tail(element, &priv->msg_free_list); + INC_STAT(&priv->msg_free_stat); + break; + } + + /* advance oldest used TBD pointer to start of next entry */ + txq->oldest = (e + 1) % txq->entries; + /* increase available TBDs number */ + txq->available += descriptors_used; + SET_STAT(&priv->txq_stat, txq->available); + + IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n", + jiffies - packet->jiffy_start); + + return (!list_empty(&priv->fw_pend_list)); +} + +static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv) +{ + int i = 0; + + while (__ipw2100_tx_process(priv) && i < 200) + i++; + + if (i == 200) { + printk(KERN_WARNING DRV_NAME ": " + "%s: Driver is running slow (%d iters).\n", + priv->net_dev->name, i); + } +} + +static void ipw2100_tx_send_commands(struct ipw2100_priv *priv) +{ + struct list_head *element; + struct ipw2100_tx_packet *packet; + struct ipw2100_bd_queue *txq = &priv->tx_queue; + struct ipw2100_bd *tbd; + int next = txq->next; + + while (!list_empty(&priv->msg_pend_list)) { + /* if there isn't enough space in TBD queue, then + * don't stuff a new one in. + * NOTE: 3 are needed as a command will take one, + * and there is a minimum of 2 that must be + * maintained between the r and w indexes + */ + if (txq->available <= 3) { + IPW_DEBUG_TX("no room in tx_queue\n"); + break; + } + + element = priv->msg_pend_list.next; + list_del(element); + DEC_STAT(&priv->msg_pend_stat); + + packet = list_entry(element, struct ipw2100_tx_packet, list); + + IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n", + &txq->drv[txq->next], + (u32) (txq->nic + txq->next * + sizeof(struct ipw2100_bd))); + + packet->index = txq->next; + + tbd = &txq->drv[txq->next]; + + /* initialize TBD */ + tbd->host_addr = packet->info.c_struct.cmd_phys; + tbd->buf_length = sizeof(struct ipw2100_cmd_header); + /* not marking number of fragments causes problems + * with f/w debug version */ + tbd->num_fragments = 1; + tbd->status.info.field = + IPW_BD_STATUS_TX_FRAME_COMMAND | + IPW_BD_STATUS_TX_INTERRUPT_ENABLE; + + /* update TBD queue counters */ + txq->next++; + txq->next %= txq->entries; + txq->available--; + DEC_STAT(&priv->txq_stat); + + list_add_tail(element, &priv->fw_pend_list); + INC_STAT(&priv->fw_pend_stat); + } + + if (txq->next != next) { + /* kick off the DMA by notifying firmware the + * write index has moved; make sure TBD stores are sync'd */ + wmb(); + write_register(priv->net_dev, + IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX, + txq->next); + } +} + +/* + * ipw2100_tx_send_data + * + */ +static void ipw2100_tx_send_data(struct ipw2100_priv *priv) +{ + struct list_head *element; + struct ipw2100_tx_packet *packet; + struct ipw2100_bd_queue *txq = &priv->tx_queue; + struct ipw2100_bd *tbd; + int next = txq->next; + int i = 0; + struct ipw2100_data_header *ipw_hdr; + struct libipw_hdr_3addr *hdr; + + while (!list_empty(&priv->tx_pend_list)) { + /* if there isn't enough space in TBD queue, then + * don't stuff a new one in. + * NOTE: 4 are needed as a data will take two, + * and there is a minimum of 2 that must be + * maintained between the r and w indexes + */ + element = priv->tx_pend_list.next; + packet = list_entry(element, struct ipw2100_tx_packet, list); + + if (unlikely(1 + packet->info.d_struct.txb->nr_frags > + IPW_MAX_BDS)) { + /* TODO: Support merging buffers if more than + * IPW_MAX_BDS are used */ + IPW_DEBUG_INFO("%s: Maximum BD threshold exceeded. " + "Increase fragmentation level.\n", + priv->net_dev->name); + } + + if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) { + IPW_DEBUG_TX("no room in tx_queue\n"); + break; + } + + list_del(element); + DEC_STAT(&priv->tx_pend_stat); + + tbd = &txq->drv[txq->next]; + + packet->index = txq->next; + + ipw_hdr = packet->info.d_struct.data; + hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb-> + fragments[0]->data; + + if (priv->ieee->iw_mode == IW_MODE_INFRA) { + /* To DS: Addr1 = BSSID, Addr2 = SA, + Addr3 = DA */ + memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN); + memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN); + } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + /* not From/To DS: Addr1 = DA, Addr2 = SA, + Addr3 = BSSID */ + memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN); + memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN); + } + + ipw_hdr->host_command_reg = SEND; + ipw_hdr->host_command_reg1 = 0; + + /* For now we only support host based encryption */ + ipw_hdr->needs_encryption = 0; + ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted; + if (packet->info.d_struct.txb->nr_frags > 1) + ipw_hdr->fragment_size = + packet->info.d_struct.txb->frag_size - + LIBIPW_3ADDR_LEN; + else + ipw_hdr->fragment_size = 0; + + tbd->host_addr = packet->info.d_struct.data_phys; + tbd->buf_length = sizeof(struct ipw2100_data_header); + tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags; + tbd->status.info.field = + IPW_BD_STATUS_TX_FRAME_802_3 | + IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT; + txq->next++; + txq->next %= txq->entries; + + IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n", + packet->index, tbd->host_addr, tbd->buf_length); +#ifdef CONFIG_IPW2100_DEBUG + if (packet->info.d_struct.txb->nr_frags > 1) + IPW_DEBUG_FRAG("fragment Tx: %d frames\n", + packet->info.d_struct.txb->nr_frags); +#endif + + for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) { + tbd = &txq->drv[txq->next]; + if (i == packet->info.d_struct.txb->nr_frags - 1) + tbd->status.info.field = + IPW_BD_STATUS_TX_FRAME_802_3 | + IPW_BD_STATUS_TX_INTERRUPT_ENABLE; + else + tbd->status.info.field = + IPW_BD_STATUS_TX_FRAME_802_3 | + IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT; + + tbd->buf_length = packet->info.d_struct.txb-> + fragments[i]->len - LIBIPW_3ADDR_LEN; + + tbd->host_addr = dma_map_single(&priv->pci_dev->dev, + packet->info.d_struct. + txb->fragments[i]->data + + LIBIPW_3ADDR_LEN, + tbd->buf_length, + DMA_TO_DEVICE); + if (dma_mapping_error(&priv->pci_dev->dev, tbd->host_addr)) { + IPW_DEBUG_TX("dma mapping error\n"); + break; + } + + IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n", + txq->next, tbd->host_addr, + tbd->buf_length); + + dma_sync_single_for_device(&priv->pci_dev->dev, + tbd->host_addr, + tbd->buf_length, + DMA_TO_DEVICE); + + txq->next++; + txq->next %= txq->entries; + } + + txq->available -= 1 + packet->info.d_struct.txb->nr_frags; + SET_STAT(&priv->txq_stat, txq->available); + + list_add_tail(element, &priv->fw_pend_list); + INC_STAT(&priv->fw_pend_stat); + } + + if (txq->next != next) { + /* kick off the DMA by notifying firmware the + * write index has moved; make sure TBD stores are sync'd */ + write_register(priv->net_dev, + IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX, + txq->next); + } +} + +static void ipw2100_irq_tasklet(struct tasklet_struct *t) +{ + struct ipw2100_priv *priv = from_tasklet(priv, t, irq_tasklet); + struct net_device *dev = priv->net_dev; + unsigned long flags; + u32 inta, tmp; + + spin_lock_irqsave(&priv->low_lock, flags); + ipw2100_disable_interrupts(priv); + + read_register(dev, IPW_REG_INTA, &inta); + + IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n", + (unsigned long)inta & IPW_INTERRUPT_MASK); + + priv->in_isr++; + priv->interrupts++; + + /* We do not loop and keep polling for more interrupts as this + * is frowned upon and doesn't play nicely with other potentially + * chained IRQs */ + IPW_DEBUG_ISR("INTA: 0x%08lX\n", + (unsigned long)inta & IPW_INTERRUPT_MASK); + + if (inta & IPW2100_INTA_FATAL_ERROR) { + printk(KERN_WARNING DRV_NAME + ": Fatal interrupt. Scheduling firmware restart.\n"); + priv->inta_other++; + write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR); + + read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error); + IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n", + priv->net_dev->name, priv->fatal_error); + + read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp); + IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n", + priv->net_dev->name, tmp); + + /* Wake up any sleeping jobs */ + schedule_reset(priv); + } + + if (inta & IPW2100_INTA_PARITY_ERROR) { + printk(KERN_ERR DRV_NAME + ": ***** PARITY ERROR INTERRUPT !!!!\n"); + priv->inta_other++; + write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR); + } + + if (inta & IPW2100_INTA_RX_TRANSFER) { + IPW_DEBUG_ISR("RX interrupt\n"); + + priv->rx_interrupts++; + + write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER); + + __ipw2100_rx_process(priv); + __ipw2100_tx_complete(priv); + } + + if (inta & IPW2100_INTA_TX_TRANSFER) { + IPW_DEBUG_ISR("TX interrupt\n"); + + priv->tx_interrupts++; + + write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER); + + __ipw2100_tx_complete(priv); + ipw2100_tx_send_commands(priv); + ipw2100_tx_send_data(priv); + } + + if (inta & IPW2100_INTA_TX_COMPLETE) { + IPW_DEBUG_ISR("TX complete\n"); + priv->inta_other++; + write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE); + + __ipw2100_tx_complete(priv); + } + + if (inta & IPW2100_INTA_EVENT_INTERRUPT) { + /* ipw2100_handle_event(dev); */ + priv->inta_other++; + write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT); + } + + if (inta & IPW2100_INTA_FW_INIT_DONE) { + IPW_DEBUG_ISR("FW init done interrupt\n"); + priv->inta_other++; + + read_register(dev, IPW_REG_INTA, &tmp); + if (tmp & (IPW2100_INTA_FATAL_ERROR | + IPW2100_INTA_PARITY_ERROR)) { + write_register(dev, IPW_REG_INTA, + IPW2100_INTA_FATAL_ERROR | + IPW2100_INTA_PARITY_ERROR); + } + + write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE); + } + + if (inta & IPW2100_INTA_STATUS_CHANGE) { + IPW_DEBUG_ISR("Status change interrupt\n"); + priv->inta_other++; + write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE); + } + + if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) { + IPW_DEBUG_ISR("slave host mode interrupt\n"); + priv->inta_other++; + write_register(dev, IPW_REG_INTA, + IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE); + } + + priv->in_isr--; + ipw2100_enable_interrupts(priv); + + spin_unlock_irqrestore(&priv->low_lock, flags); + + IPW_DEBUG_ISR("exit\n"); +} + +static irqreturn_t ipw2100_interrupt(int irq, void *data) +{ + struct ipw2100_priv *priv = data; + u32 inta, inta_mask; + + if (!data) + return IRQ_NONE; + + spin_lock(&priv->low_lock); + + /* We check to see if we should be ignoring interrupts before + * we touch the hardware. During ucode load if we try and handle + * an interrupt we can cause keyboard problems as well as cause + * the ucode to fail to initialize */ + if (!(priv->status & STATUS_INT_ENABLED)) { + /* Shared IRQ */ + goto none; + } + + read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask); + read_register(priv->net_dev, IPW_REG_INTA, &inta); + + if (inta == 0xFFFFFFFF) { + /* Hardware disappeared */ + printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n"); + goto none; + } + + inta &= IPW_INTERRUPT_MASK; + + if (!(inta & inta_mask)) { + /* Shared interrupt */ + goto none; + } + + /* We disable the hardware interrupt here just to prevent unneeded + * calls to be made. We disable this again within the actual + * work tasklet, so if another part of the code re-enables the + * interrupt, that is fine */ + ipw2100_disable_interrupts(priv); + + tasklet_schedule(&priv->irq_tasklet); + spin_unlock(&priv->low_lock); + + return IRQ_HANDLED; + none: + spin_unlock(&priv->low_lock); + return IRQ_NONE; +} + +static netdev_tx_t ipw2100_tx(struct libipw_txb *txb, + struct net_device *dev, int pri) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + struct list_head *element; + struct ipw2100_tx_packet *packet; + unsigned long flags; + + spin_lock_irqsave(&priv->low_lock, flags); + + if (!(priv->status & STATUS_ASSOCIATED)) { + IPW_DEBUG_INFO("Can not transmit when not connected.\n"); + priv->net_dev->stats.tx_carrier_errors++; + netif_stop_queue(dev); + goto fail_unlock; + } + + if (list_empty(&priv->tx_free_list)) + goto fail_unlock; + + element = priv->tx_free_list.next; + packet = list_entry(element, struct ipw2100_tx_packet, list); + + packet->info.d_struct.txb = txb; + + IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len); + printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len); + + packet->jiffy_start = jiffies; + + list_del(element); + DEC_STAT(&priv->tx_free_stat); + + list_add_tail(element, &priv->tx_pend_list); + INC_STAT(&priv->tx_pend_stat); + + ipw2100_tx_send_data(priv); + + spin_unlock_irqrestore(&priv->low_lock, flags); + return NETDEV_TX_OK; + +fail_unlock: + netif_stop_queue(dev); + spin_unlock_irqrestore(&priv->low_lock, flags); + return NETDEV_TX_BUSY; +} + +static int ipw2100_msg_allocate(struct ipw2100_priv *priv) +{ + int i, j, err = -EINVAL; + void *v; + dma_addr_t p; + + priv->msg_buffers = + kmalloc_array(IPW_COMMAND_POOL_SIZE, + sizeof(struct ipw2100_tx_packet), + GFP_KERNEL); + if (!priv->msg_buffers) + return -ENOMEM; + + for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) { + v = dma_alloc_coherent(&priv->pci_dev->dev, + sizeof(struct ipw2100_cmd_header), &p, + GFP_KERNEL); + if (!v) { + printk(KERN_ERR DRV_NAME ": " + "%s: PCI alloc failed for msg " + "buffers.\n", priv->net_dev->name); + err = -ENOMEM; + break; + } + + priv->msg_buffers[i].type = COMMAND; + priv->msg_buffers[i].info.c_struct.cmd = + (struct ipw2100_cmd_header *)v; + priv->msg_buffers[i].info.c_struct.cmd_phys = p; + } + + if (i == IPW_COMMAND_POOL_SIZE) + return 0; + + for (j = 0; j < i; j++) { + dma_free_coherent(&priv->pci_dev->dev, + sizeof(struct ipw2100_cmd_header), + priv->msg_buffers[j].info.c_struct.cmd, + priv->msg_buffers[j].info.c_struct.cmd_phys); + } + + kfree(priv->msg_buffers); + priv->msg_buffers = NULL; + + return err; +} + +static int ipw2100_msg_initialize(struct ipw2100_priv *priv) +{ + int i; + + INIT_LIST_HEAD(&priv->msg_free_list); + INIT_LIST_HEAD(&priv->msg_pend_list); + + for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) + list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list); + SET_STAT(&priv->msg_free_stat, i); + + return 0; +} + +static void ipw2100_msg_free(struct ipw2100_priv *priv) +{ + int i; + + if (!priv->msg_buffers) + return; + + for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) { + dma_free_coherent(&priv->pci_dev->dev, + sizeof(struct ipw2100_cmd_header), + priv->msg_buffers[i].info.c_struct.cmd, + priv->msg_buffers[i].info.c_struct.cmd_phys); + } + + kfree(priv->msg_buffers); + priv->msg_buffers = NULL; +} + +static ssize_t pci_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct pci_dev *pci_dev = to_pci_dev(d); + char *out = buf; + int i, j; + u32 val; + + for (i = 0; i < 16; i++) { + out += sprintf(out, "[%08X] ", i * 16); + for (j = 0; j < 16; j += 4) { + pci_read_config_dword(pci_dev, i * 16 + j, &val); + out += sprintf(out, "%08X ", val); + } + out += sprintf(out, "\n"); + } + + return out - buf; +} + +static DEVICE_ATTR_RO(pci); + +static ssize_t cfg_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *p = dev_get_drvdata(d); + return sprintf(buf, "0x%08x\n", (int)p->config); +} + +static DEVICE_ATTR_RO(cfg); + +static ssize_t status_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *p = dev_get_drvdata(d); + return sprintf(buf, "0x%08x\n", (int)p->status); +} + +static DEVICE_ATTR_RO(status); + +static ssize_t capability_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *p = dev_get_drvdata(d); + return sprintf(buf, "0x%08x\n", (int)p->capability); +} + +static DEVICE_ATTR_RO(capability); + +#define IPW2100_REG(x) { IPW_ ##x, #x } +static const struct { + u32 addr; + const char *name; +} hw_data[] = { +IPW2100_REG(REG_GP_CNTRL), + IPW2100_REG(REG_GPIO), + IPW2100_REG(REG_INTA), + IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),}; +#define IPW2100_NIC(x, s) { x, #x, s } +static const struct { + u32 addr; + const char *name; + size_t size; +} nic_data[] = { +IPW2100_NIC(IPW2100_CONTROL_REG, 2), + IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),}; +#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d } +static const struct { + u8 index; + const char *name; + const char *desc; +} ord_data[] = { +IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"), + IPW2100_ORD(STAT_TX_HOST_COMPLETE, + "successful Host Tx's (MSDU)"), + IPW2100_ORD(STAT_TX_DIR_DATA, + "successful Directed Tx's (MSDU)"), + IPW2100_ORD(STAT_TX_DIR_DATA1, + "successful Directed Tx's (MSDU) @ 1MB"), + IPW2100_ORD(STAT_TX_DIR_DATA2, + "successful Directed Tx's (MSDU) @ 2MB"), + IPW2100_ORD(STAT_TX_DIR_DATA5_5, + "successful Directed Tx's (MSDU) @ 5_5MB"), + IPW2100_ORD(STAT_TX_DIR_DATA11, + "successful Directed Tx's (MSDU) @ 11MB"), + IPW2100_ORD(STAT_TX_NODIR_DATA1, + "successful Non_Directed Tx's (MSDU) @ 1MB"), + IPW2100_ORD(STAT_TX_NODIR_DATA2, + "successful Non_Directed Tx's (MSDU) @ 2MB"), + IPW2100_ORD(STAT_TX_NODIR_DATA5_5, + "successful Non_Directed Tx's (MSDU) @ 5.5MB"), + IPW2100_ORD(STAT_TX_NODIR_DATA11, + "successful Non_Directed Tx's (MSDU) @ 11MB"), + IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"), + IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"), + IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"), + IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"), + IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"), + IPW2100_ORD(STAT_TX_ASSN_RESP, + "successful Association response Tx's"), + IPW2100_ORD(STAT_TX_REASSN, + "successful Reassociation Tx's"), + IPW2100_ORD(STAT_TX_REASSN_RESP, + "successful Reassociation response Tx's"), + IPW2100_ORD(STAT_TX_PROBE, + "probes successfully transmitted"), + IPW2100_ORD(STAT_TX_PROBE_RESP, + "probe responses successfully transmitted"), + IPW2100_ORD(STAT_TX_BEACON, "tx beacon"), + IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"), + IPW2100_ORD(STAT_TX_DISASSN, + "successful Disassociation TX"), + IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"), + IPW2100_ORD(STAT_TX_DEAUTH, + "successful Deauthentication TX"), + IPW2100_ORD(STAT_TX_TOTAL_BYTES, + "Total successful Tx data bytes"), + IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"), + IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"), + IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"), + IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"), + IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"), + IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"), + IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP, + "times max tries in a hop failed"), + IPW2100_ORD(STAT_TX_DISASSN_FAIL, + "times disassociation failed"), + IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"), + IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"), + IPW2100_ORD(STAT_RX_HOST, "packets passed to host"), + IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"), + IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"), + IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"), + IPW2100_ORD(STAT_RX_DIR_DATA5_5, + "directed packets at 5.5MB"), + IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"), + IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"), + IPW2100_ORD(STAT_RX_NODIR_DATA1, + "nondirected packets at 1MB"), + IPW2100_ORD(STAT_RX_NODIR_DATA2, + "nondirected packets at 2MB"), + IPW2100_ORD(STAT_RX_NODIR_DATA5_5, + "nondirected packets at 5.5MB"), + IPW2100_ORD(STAT_RX_NODIR_DATA11, + "nondirected packets at 11MB"), + IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"), + IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS, + "Rx CTS"), + IPW2100_ORD(STAT_RX_ACK, "Rx ACK"), + IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"), + IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"), + IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"), + IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"), + IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"), + IPW2100_ORD(STAT_RX_REASSN_RESP, + "Reassociation response Rx's"), + IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"), + IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"), + IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"), + IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"), + IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"), + IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"), + IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"), + IPW2100_ORD(STAT_RX_TOTAL_BYTES, + "Total rx data bytes received"), + IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"), + IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"), + IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"), + IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"), + IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"), + IPW2100_ORD(STAT_RX_DUPLICATE1, + "duplicate rx packets at 1MB"), + IPW2100_ORD(STAT_RX_DUPLICATE2, + "duplicate rx packets at 2MB"), + IPW2100_ORD(STAT_RX_DUPLICATE5_5, + "duplicate rx packets at 5.5MB"), + IPW2100_ORD(STAT_RX_DUPLICATE11, + "duplicate rx packets at 11MB"), + IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"), + IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"), + IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"), + IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"), + IPW2100_ORD(STAT_RX_INVALID_PROTOCOL, + "rx frames with invalid protocol"), + IPW2100_ORD(SYS_BOOT_TIME, "Boot time"), + IPW2100_ORD(STAT_RX_NO_BUFFER, + "rx frames rejected due to no buffer"), + IPW2100_ORD(STAT_RX_MISSING_FRAG, + "rx frames dropped due to missing fragment"), + IPW2100_ORD(STAT_RX_ORPHAN_FRAG, + "rx frames dropped due to non-sequential fragment"), + IPW2100_ORD(STAT_RX_ORPHAN_FRAME, + "rx frames dropped due to unmatched 1st frame"), + IPW2100_ORD(STAT_RX_FRAG_AGEOUT, + "rx frames dropped due to uncompleted frame"), + IPW2100_ORD(STAT_RX_ICV_ERRORS, + "ICV errors during decryption"), + IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"), + IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"), + IPW2100_ORD(STAT_PSP_POLL_TIMEOUT, + "poll response timeouts"), + IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT, + "timeouts waiting for last {broad,multi}cast pkt"), + IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"), + IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"), + IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"), + IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"), + IPW2100_ORD(STAT_PERCENT_MISSED_BCNS, + "current calculation of % missed beacons"), + IPW2100_ORD(STAT_PERCENT_RETRIES, + "current calculation of % missed tx retries"), + IPW2100_ORD(ASSOCIATED_AP_PTR, + "0 if not associated, else pointer to AP table entry"), + IPW2100_ORD(AVAILABLE_AP_CNT, + "AP's described in the AP table"), + IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"), + IPW2100_ORD(STAT_AP_ASSNS, "associations"), + IPW2100_ORD(STAT_ASSN_FAIL, "association failures"), + IPW2100_ORD(STAT_ASSN_RESP_FAIL, + "failures due to response fail"), + IPW2100_ORD(STAT_FULL_SCANS, "full scans"), + IPW2100_ORD(CARD_DISABLED, "Card Disabled"), + IPW2100_ORD(STAT_ROAM_INHIBIT, + "times roaming was inhibited due to activity"), + IPW2100_ORD(RSSI_AT_ASSN, + "RSSI of associated AP at time of association"), + IPW2100_ORD(STAT_ASSN_CAUSE1, + "reassociation: no probe response or TX on hop"), + IPW2100_ORD(STAT_ASSN_CAUSE2, + "reassociation: poor tx/rx quality"), + IPW2100_ORD(STAT_ASSN_CAUSE3, + "reassociation: tx/rx quality (excessive AP load"), + IPW2100_ORD(STAT_ASSN_CAUSE4, + "reassociation: AP RSSI level"), + IPW2100_ORD(STAT_ASSN_CAUSE5, + "reassociations due to load leveling"), + IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"), + IPW2100_ORD(STAT_AUTH_RESP_FAIL, + "times authentication response failed"), + IPW2100_ORD(STATION_TABLE_CNT, + "entries in association table"), + IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"), + IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"), + IPW2100_ORD(COUNTRY_CODE, + "IEEE country code as recv'd from beacon"), + IPW2100_ORD(COUNTRY_CHANNELS, + "channels supported by country"), + IPW2100_ORD(RESET_CNT, "adapter resets (warm)"), + IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"), + IPW2100_ORD(ANTENNA_DIVERSITY, + "TRUE if antenna diversity is disabled"), + IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"), + IPW2100_ORD(OUR_FREQ, + "current radio freq lower digits - channel ID"), + IPW2100_ORD(RTC_TIME, "current RTC time"), + IPW2100_ORD(PORT_TYPE, "operating mode"), + IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"), + IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"), + IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"), + IPW2100_ORD(BASIC_RATES, "basic tx rates"), + IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"), + IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"), + IPW2100_ORD(CAPABILITIES, + "Management frame capability field"), + IPW2100_ORD(AUTH_TYPE, "Type of authentication"), + IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"), + IPW2100_ORD(RTS_THRESHOLD, + "Min packet length for RTS handshaking"), + IPW2100_ORD(INT_MODE, "International mode"), + IPW2100_ORD(FRAGMENTATION_THRESHOLD, + "protocol frag threshold"), + IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS, + "EEPROM offset in SRAM"), + IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE, + "EEPROM size in SRAM"), + IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"), + IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS, + "EEPROM IBSS 11b channel set"), + IPW2100_ORD(MAC_VERSION, "MAC Version"), + IPW2100_ORD(MAC_REVISION, "MAC Revision"), + IPW2100_ORD(RADIO_VERSION, "Radio Version"), + IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"), + IPW2100_ORD(UCODE_VERSION, "Ucode Version"),}; + +static ssize_t registers_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + int i; + struct ipw2100_priv *priv = dev_get_drvdata(d); + struct net_device *dev = priv->net_dev; + char *out = buf; + u32 val = 0; + + out += sprintf(out, "%30s [Address ] : Hex\n", "Register"); + + for (i = 0; i < ARRAY_SIZE(hw_data); i++) { + read_register(dev, hw_data[i].addr, &val); + out += sprintf(out, "%30s [%08X] : %08X\n", + hw_data[i].name, hw_data[i].addr, val); + } + + return out - buf; +} + +static DEVICE_ATTR_RO(registers); + +static ssize_t hardware_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + struct net_device *dev = priv->net_dev; + char *out = buf; + int i; + + out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry"); + + for (i = 0; i < ARRAY_SIZE(nic_data); i++) { + u8 tmp8; + u16 tmp16; + u32 tmp32; + + switch (nic_data[i].size) { + case 1: + read_nic_byte(dev, nic_data[i].addr, &tmp8); + out += sprintf(out, "%30s [%08X] : %02X\n", + nic_data[i].name, nic_data[i].addr, + tmp8); + break; + case 2: + read_nic_word(dev, nic_data[i].addr, &tmp16); + out += sprintf(out, "%30s [%08X] : %04X\n", + nic_data[i].name, nic_data[i].addr, + tmp16); + break; + case 4: + read_nic_dword(dev, nic_data[i].addr, &tmp32); + out += sprintf(out, "%30s [%08X] : %08X\n", + nic_data[i].name, nic_data[i].addr, + tmp32); + break; + } + } + return out - buf; +} + +static DEVICE_ATTR_RO(hardware); + +static ssize_t memory_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + struct net_device *dev = priv->net_dev; + static unsigned long loop = 0; + int len = 0; + u32 buffer[4]; + int i; + char line[81]; + + if (loop >= 0x30000) + loop = 0; + + /* sysfs provides us PAGE_SIZE buffer */ + while (len < PAGE_SIZE - 128 && loop < 0x30000) { + + if (priv->snapshot[0]) + for (i = 0; i < 4; i++) + buffer[i] = + *(u32 *) SNAPSHOT_ADDR(loop + i * 4); + else + for (i = 0; i < 4; i++) + read_nic_dword(dev, loop + i * 4, &buffer[i]); + + if (priv->dump_raw) + len += sprintf(buf + len, + "%c%c%c%c" + "%c%c%c%c" + "%c%c%c%c" + "%c%c%c%c", + ((u8 *) buffer)[0x0], + ((u8 *) buffer)[0x1], + ((u8 *) buffer)[0x2], + ((u8 *) buffer)[0x3], + ((u8 *) buffer)[0x4], + ((u8 *) buffer)[0x5], + ((u8 *) buffer)[0x6], + ((u8 *) buffer)[0x7], + ((u8 *) buffer)[0x8], + ((u8 *) buffer)[0x9], + ((u8 *) buffer)[0xa], + ((u8 *) buffer)[0xb], + ((u8 *) buffer)[0xc], + ((u8 *) buffer)[0xd], + ((u8 *) buffer)[0xe], + ((u8 *) buffer)[0xf]); + else + len += sprintf(buf + len, "%s\n", + snprint_line(line, sizeof(line), + (u8 *) buffer, 16, loop)); + loop += 16; + } + + return len; +} + +static ssize_t memory_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + struct net_device *dev = priv->net_dev; + const char *p = buf; + + (void)dev; /* kill unused-var warning for debug-only code */ + + if (count < 1) + return count; + + if (p[0] == '1' || + (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) { + IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n", + dev->name); + priv->dump_raw = 1; + + } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' && + tolower(p[1]) == 'f')) { + IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n", + dev->name); + priv->dump_raw = 0; + + } else if (tolower(p[0]) == 'r') { + IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name); + ipw2100_snapshot_free(priv); + + } else + IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, " + "reset = clear memory snapshot\n", dev->name); + + return count; +} + +static DEVICE_ATTR_RW(memory); + +static ssize_t ordinals_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + u32 val = 0; + int len = 0; + u32 val_len; + static int loop = 0; + + if (priv->status & STATUS_RF_KILL_MASK) + return 0; + + if (loop >= ARRAY_SIZE(ord_data)) + loop = 0; + + /* sysfs provides us PAGE_SIZE buffer */ + while (len < PAGE_SIZE - 128 && loop < ARRAY_SIZE(ord_data)) { + val_len = sizeof(u32); + + if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val, + &val_len)) + len += sprintf(buf + len, "[0x%02X] = ERROR %s\n", + ord_data[loop].index, + ord_data[loop].desc); + else + len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n", + ord_data[loop].index, val, + ord_data[loop].desc); + loop++; + } + + return len; +} + +static DEVICE_ATTR_RO(ordinals); + +static ssize_t stats_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + char *out = buf; + + out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n", + priv->interrupts, priv->tx_interrupts, + priv->rx_interrupts, priv->inta_other); + out += sprintf(out, "firmware resets: %d\n", priv->resets); + out += sprintf(out, "firmware hangs: %d\n", priv->hangs); +#ifdef CONFIG_IPW2100_DEBUG + out += sprintf(out, "packet mismatch image: %s\n", + priv->snapshot[0] ? "YES" : "NO"); +#endif + + return out - buf; +} + +static DEVICE_ATTR_RO(stats); + +static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode) +{ + int err; + + if (mode == priv->ieee->iw_mode) + return 0; + + err = ipw2100_disable_adapter(priv); + if (err) { + printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n", + priv->net_dev->name, err); + return err; + } + + switch (mode) { + case IW_MODE_INFRA: + priv->net_dev->type = ARPHRD_ETHER; + break; + case IW_MODE_ADHOC: + priv->net_dev->type = ARPHRD_ETHER; + break; +#ifdef CONFIG_IPW2100_MONITOR + case IW_MODE_MONITOR: + priv->last_mode = priv->ieee->iw_mode; + priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; + break; +#endif /* CONFIG_IPW2100_MONITOR */ + } + + priv->ieee->iw_mode = mode; + +#ifdef CONFIG_PM + /* Indicate ipw2100_download_firmware download firmware + * from disk instead of memory. */ + ipw2100_firmware.version = 0; +#endif + + printk(KERN_INFO "%s: Resetting on mode change.\n", priv->net_dev->name); + priv->reset_backoff = 0; + schedule_reset(priv); + + return 0; +} + +static ssize_t internals_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + int len = 0; + +#define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x) + + if (priv->status & STATUS_ASSOCIATED) + len += sprintf(buf + len, "connected: %llu\n", + ktime_get_boottime_seconds() - priv->connect_start); + else + len += sprintf(buf + len, "not connected\n"); + + DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p"); + DUMP_VAR(status, "08lx"); + DUMP_VAR(config, "08lx"); + DUMP_VAR(capability, "08lx"); + + len += + sprintf(buf + len, "last_rtc: %lu\n", + (unsigned long)priv->last_rtc); + + DUMP_VAR(fatal_error, "d"); + DUMP_VAR(stop_hang_check, "d"); + DUMP_VAR(stop_rf_kill, "d"); + DUMP_VAR(messages_sent, "d"); + + DUMP_VAR(tx_pend_stat.value, "d"); + DUMP_VAR(tx_pend_stat.hi, "d"); + + DUMP_VAR(tx_free_stat.value, "d"); + DUMP_VAR(tx_free_stat.lo, "d"); + + DUMP_VAR(msg_free_stat.value, "d"); + DUMP_VAR(msg_free_stat.lo, "d"); + + DUMP_VAR(msg_pend_stat.value, "d"); + DUMP_VAR(msg_pend_stat.hi, "d"); + + DUMP_VAR(fw_pend_stat.value, "d"); + DUMP_VAR(fw_pend_stat.hi, "d"); + + DUMP_VAR(txq_stat.value, "d"); + DUMP_VAR(txq_stat.lo, "d"); + + DUMP_VAR(ieee->scans, "d"); + DUMP_VAR(reset_backoff, "lld"); + + return len; +} + +static DEVICE_ATTR_RO(internals); + +static ssize_t bssinfo_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + char essid[IW_ESSID_MAX_SIZE + 1]; + u8 bssid[ETH_ALEN]; + u32 chan = 0; + char *out = buf; + unsigned int length; + int ret; + + if (priv->status & STATUS_RF_KILL_MASK) + return 0; + + memset(essid, 0, sizeof(essid)); + memset(bssid, 0, sizeof(bssid)); + + length = IW_ESSID_MAX_SIZE; + ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length); + if (ret) + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + + length = sizeof(bssid); + ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, + bssid, &length); + if (ret) + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + + length = sizeof(u32); + ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length); + if (ret) + IPW_DEBUG_INFO("failed querying ordinals at line %d\n", + __LINE__); + + out += sprintf(out, "ESSID: %s\n", essid); + out += sprintf(out, "BSSID: %pM\n", bssid); + out += sprintf(out, "Channel: %d\n", chan); + + return out - buf; +} + +static DEVICE_ATTR_RO(bssinfo); + +#ifdef CONFIG_IPW2100_DEBUG +static ssize_t debug_level_show(struct device_driver *d, char *buf) +{ + return sprintf(buf, "0x%08X\n", ipw2100_debug_level); +} + +static ssize_t debug_level_store(struct device_driver *d, + const char *buf, size_t count) +{ + u32 val; + int ret; + + ret = kstrtou32(buf, 0, &val); + if (ret) + IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf); + else + ipw2100_debug_level = val; + + return strnlen(buf, count); +} +static DRIVER_ATTR_RW(debug_level); +#endif /* CONFIG_IPW2100_DEBUG */ + +static ssize_t fatal_error_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + char *out = buf; + int i; + + if (priv->fatal_error) + out += sprintf(out, "0x%08X\n", priv->fatal_error); + else + out += sprintf(out, "0\n"); + + for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) { + if (!priv->fatal_errors[(priv->fatal_index - i) % + IPW2100_ERROR_QUEUE]) + continue; + + out += sprintf(out, "%d. 0x%08X\n", i, + priv->fatal_errors[(priv->fatal_index - i) % + IPW2100_ERROR_QUEUE]); + } + + return out - buf; +} + +static ssize_t fatal_error_store(struct device *d, + struct device_attribute *attr, const char *buf, + size_t count) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + schedule_reset(priv); + return count; +} + +static DEVICE_ATTR_RW(fatal_error); + +static ssize_t scan_age_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "%d\n", priv->ieee->scan_age); +} + +static ssize_t scan_age_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + struct net_device *dev = priv->net_dev; + unsigned long val; + int ret; + + (void)dev; /* kill unused-var warning for debug-only code */ + + IPW_DEBUG_INFO("enter\n"); + + ret = kstrtoul(buf, 0, &val); + if (ret) { + IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name); + } else { + priv->ieee->scan_age = val; + IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age); + } + + IPW_DEBUG_INFO("exit\n"); + return strnlen(buf, count); +} + +static DEVICE_ATTR_RW(scan_age); + +static ssize_t rf_kill_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + /* 0 - RF kill not enabled + 1 - SW based RF kill active (sysfs) + 2 - HW based RF kill active + 3 - Both HW and SW baed RF kill active */ + struct ipw2100_priv *priv = dev_get_drvdata(d); + int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) | + (rf_kill_active(priv) ? 0x2 : 0x0); + return sprintf(buf, "%i\n", val); +} + +static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio) +{ + if ((disable_radio ? 1 : 0) == + (priv->status & STATUS_RF_KILL_SW ? 1 : 0)) + return 0; + + IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n", + disable_radio ? "OFF" : "ON"); + + mutex_lock(&priv->action_mutex); + + if (disable_radio) { + priv->status |= STATUS_RF_KILL_SW; + ipw2100_down(priv); + } else { + priv->status &= ~STATUS_RF_KILL_SW; + if (rf_kill_active(priv)) { + IPW_DEBUG_RF_KILL("Can not turn radio back on - " + "disabled by HW switch\n"); + /* Make sure the RF_KILL check timer is running */ + priv->stop_rf_kill = 0; + mod_delayed_work(system_wq, &priv->rf_kill, + round_jiffies_relative(HZ)); + } else + schedule_reset(priv); + } + + mutex_unlock(&priv->action_mutex); + return 1; +} + +static ssize_t rf_kill_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw2100_priv *priv = dev_get_drvdata(d); + ipw_radio_kill_sw(priv, buf[0] == '1'); + return count; +} + +static DEVICE_ATTR_RW(rf_kill); + +static struct attribute *ipw2100_sysfs_entries[] = { + &dev_attr_hardware.attr, + &dev_attr_registers.attr, + &dev_attr_ordinals.attr, + &dev_attr_pci.attr, + &dev_attr_stats.attr, + &dev_attr_internals.attr, + &dev_attr_bssinfo.attr, + &dev_attr_memory.attr, + &dev_attr_scan_age.attr, + &dev_attr_fatal_error.attr, + &dev_attr_rf_kill.attr, + &dev_attr_cfg.attr, + &dev_attr_status.attr, + &dev_attr_capability.attr, + NULL, +}; + +static const struct attribute_group ipw2100_attribute_group = { + .attrs = ipw2100_sysfs_entries, +}; + +static int status_queue_allocate(struct ipw2100_priv *priv, int entries) +{ + struct ipw2100_status_queue *q = &priv->status_queue; + + IPW_DEBUG_INFO("enter\n"); + + q->size = entries * sizeof(struct ipw2100_status); + q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic, + GFP_KERNEL); + if (!q->drv) { + IPW_DEBUG_WARNING("Can not allocate status queue.\n"); + return -ENOMEM; + } + + IPW_DEBUG_INFO("exit\n"); + + return 0; +} + +static void status_queue_free(struct ipw2100_priv *priv) +{ + IPW_DEBUG_INFO("enter\n"); + + if (priv->status_queue.drv) { + dma_free_coherent(&priv->pci_dev->dev, + priv->status_queue.size, + priv->status_queue.drv, + priv->status_queue.nic); + priv->status_queue.drv = NULL; + } + + IPW_DEBUG_INFO("exit\n"); +} + +static int bd_queue_allocate(struct ipw2100_priv *priv, + struct ipw2100_bd_queue *q, int entries) +{ + IPW_DEBUG_INFO("enter\n"); + + memset(q, 0, sizeof(struct ipw2100_bd_queue)); + + q->entries = entries; + q->size = entries * sizeof(struct ipw2100_bd); + q->drv = dma_alloc_coherent(&priv->pci_dev->dev, q->size, &q->nic, + GFP_KERNEL); + if (!q->drv) { + IPW_DEBUG_INFO + ("can't allocate shared memory for buffer descriptors\n"); + return -ENOMEM; + } + + IPW_DEBUG_INFO("exit\n"); + + return 0; +} + +static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q) +{ + IPW_DEBUG_INFO("enter\n"); + + if (!q) + return; + + if (q->drv) { + dma_free_coherent(&priv->pci_dev->dev, q->size, q->drv, + q->nic); + q->drv = NULL; + } + + IPW_DEBUG_INFO("exit\n"); +} + +static void bd_queue_initialize(struct ipw2100_priv *priv, + struct ipw2100_bd_queue *q, u32 base, u32 size, + u32 r, u32 w) +{ + IPW_DEBUG_INFO("enter\n"); + + IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv, + (u32) q->nic); + + write_register(priv->net_dev, base, q->nic); + write_register(priv->net_dev, size, q->entries); + write_register(priv->net_dev, r, q->oldest); + write_register(priv->net_dev, w, q->next); + + IPW_DEBUG_INFO("exit\n"); +} + +static void ipw2100_kill_works(struct ipw2100_priv *priv) +{ + priv->stop_rf_kill = 1; + priv->stop_hang_check = 1; + cancel_delayed_work_sync(&priv->reset_work); + cancel_delayed_work_sync(&priv->security_work); + cancel_delayed_work_sync(&priv->wx_event_work); + cancel_delayed_work_sync(&priv->hang_check); + cancel_delayed_work_sync(&priv->rf_kill); + cancel_delayed_work_sync(&priv->scan_event); +} + +static int ipw2100_tx_allocate(struct ipw2100_priv *priv) +{ + int i, j, err; + void *v; + dma_addr_t p; + + IPW_DEBUG_INFO("enter\n"); + + err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH); + if (err) { + IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n", + priv->net_dev->name); + return err; + } + + priv->tx_buffers = kmalloc_array(TX_PENDED_QUEUE_LENGTH, + sizeof(struct ipw2100_tx_packet), + GFP_KERNEL); + if (!priv->tx_buffers) { + bd_queue_free(priv, &priv->tx_queue); + return -ENOMEM; + } + + for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) { + v = dma_alloc_coherent(&priv->pci_dev->dev, + sizeof(struct ipw2100_data_header), &p, + GFP_KERNEL); + if (!v) { + printk(KERN_ERR DRV_NAME + ": %s: PCI alloc failed for tx " "buffers.\n", + priv->net_dev->name); + err = -ENOMEM; + break; + } + + priv->tx_buffers[i].type = DATA; + priv->tx_buffers[i].info.d_struct.data = + (struct ipw2100_data_header *)v; + priv->tx_buffers[i].info.d_struct.data_phys = p; + priv->tx_buffers[i].info.d_struct.txb = NULL; + } + + if (i == TX_PENDED_QUEUE_LENGTH) + return 0; + + for (j = 0; j < i; j++) { + dma_free_coherent(&priv->pci_dev->dev, + sizeof(struct ipw2100_data_header), + priv->tx_buffers[j].info.d_struct.data, + priv->tx_buffers[j].info.d_struct.data_phys); + } + + kfree(priv->tx_buffers); + priv->tx_buffers = NULL; + + return err; +} + +static void ipw2100_tx_initialize(struct ipw2100_priv *priv) +{ + int i; + + IPW_DEBUG_INFO("enter\n"); + + /* + * reinitialize packet info lists + */ + INIT_LIST_HEAD(&priv->fw_pend_list); + INIT_STAT(&priv->fw_pend_stat); + + /* + * reinitialize lists + */ + INIT_LIST_HEAD(&priv->tx_pend_list); + INIT_LIST_HEAD(&priv->tx_free_list); + INIT_STAT(&priv->tx_pend_stat); + INIT_STAT(&priv->tx_free_stat); + + for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) { + /* We simply drop any SKBs that have been queued for + * transmit */ + if (priv->tx_buffers[i].info.d_struct.txb) { + libipw_txb_free(priv->tx_buffers[i].info.d_struct. + txb); + priv->tx_buffers[i].info.d_struct.txb = NULL; + } + + list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list); + } + + SET_STAT(&priv->tx_free_stat, i); + + priv->tx_queue.oldest = 0; + priv->tx_queue.available = priv->tx_queue.entries; + priv->tx_queue.next = 0; + INIT_STAT(&priv->txq_stat); + SET_STAT(&priv->txq_stat, priv->tx_queue.available); + + bd_queue_initialize(priv, &priv->tx_queue, + IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE, + IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE, + IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX, + IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX); + + IPW_DEBUG_INFO("exit\n"); + +} + +static void ipw2100_tx_free(struct ipw2100_priv *priv) +{ + int i; + + IPW_DEBUG_INFO("enter\n"); + + bd_queue_free(priv, &priv->tx_queue); + + if (!priv->tx_buffers) + return; + + for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) { + if (priv->tx_buffers[i].info.d_struct.txb) { + libipw_txb_free(priv->tx_buffers[i].info.d_struct. + txb); + priv->tx_buffers[i].info.d_struct.txb = NULL; + } + if (priv->tx_buffers[i].info.d_struct.data) + dma_free_coherent(&priv->pci_dev->dev, + sizeof(struct ipw2100_data_header), + priv->tx_buffers[i].info.d_struct.data, + priv->tx_buffers[i].info.d_struct.data_phys); + } + + kfree(priv->tx_buffers); + priv->tx_buffers = NULL; + + IPW_DEBUG_INFO("exit\n"); +} + +static int ipw2100_rx_allocate(struct ipw2100_priv *priv) +{ + int i, j, err = -EINVAL; + + IPW_DEBUG_INFO("enter\n"); + + err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH); + if (err) { + IPW_DEBUG_INFO("failed bd_queue_allocate\n"); + return err; + } + + err = status_queue_allocate(priv, RX_QUEUE_LENGTH); + if (err) { + IPW_DEBUG_INFO("failed status_queue_allocate\n"); + bd_queue_free(priv, &priv->rx_queue); + return err; + } + + /* + * allocate packets + */ + priv->rx_buffers = kmalloc_array(RX_QUEUE_LENGTH, + sizeof(struct ipw2100_rx_packet), + GFP_KERNEL); + if (!priv->rx_buffers) { + IPW_DEBUG_INFO("can't allocate rx packet buffer table\n"); + + bd_queue_free(priv, &priv->rx_queue); + + status_queue_free(priv); + + return -ENOMEM; + } + + for (i = 0; i < RX_QUEUE_LENGTH; i++) { + struct ipw2100_rx_packet *packet = &priv->rx_buffers[i]; + + err = ipw2100_alloc_skb(priv, packet); + if (unlikely(err)) { + err = -ENOMEM; + break; + } + + /* The BD holds the cache aligned address */ + priv->rx_queue.drv[i].host_addr = packet->dma_addr; + priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH; + priv->status_queue.drv[i].status_fields = 0; + } + + if (i == RX_QUEUE_LENGTH) + return 0; + + for (j = 0; j < i; j++) { + dma_unmap_single(&priv->pci_dev->dev, + priv->rx_buffers[j].dma_addr, + sizeof(struct ipw2100_rx_packet), + DMA_FROM_DEVICE); + dev_kfree_skb(priv->rx_buffers[j].skb); + } + + kfree(priv->rx_buffers); + priv->rx_buffers = NULL; + + bd_queue_free(priv, &priv->rx_queue); + + status_queue_free(priv); + + return err; +} + +static void ipw2100_rx_initialize(struct ipw2100_priv *priv) +{ + IPW_DEBUG_INFO("enter\n"); + + priv->rx_queue.oldest = 0; + priv->rx_queue.available = priv->rx_queue.entries - 1; + priv->rx_queue.next = priv->rx_queue.entries - 1; + + INIT_STAT(&priv->rxq_stat); + SET_STAT(&priv->rxq_stat, priv->rx_queue.available); + + bd_queue_initialize(priv, &priv->rx_queue, + IPW_MEM_HOST_SHARED_RX_BD_BASE, + IPW_MEM_HOST_SHARED_RX_BD_SIZE, + IPW_MEM_HOST_SHARED_RX_READ_INDEX, + IPW_MEM_HOST_SHARED_RX_WRITE_INDEX); + + /* set up the status queue */ + write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE, + priv->status_queue.nic); + + IPW_DEBUG_INFO("exit\n"); +} + +static void ipw2100_rx_free(struct ipw2100_priv *priv) +{ + int i; + + IPW_DEBUG_INFO("enter\n"); + + bd_queue_free(priv, &priv->rx_queue); + status_queue_free(priv); + + if (!priv->rx_buffers) + return; + + for (i = 0; i < RX_QUEUE_LENGTH; i++) { + if (priv->rx_buffers[i].rxp) { + dma_unmap_single(&priv->pci_dev->dev, + priv->rx_buffers[i].dma_addr, + sizeof(struct ipw2100_rx), + DMA_FROM_DEVICE); + dev_kfree_skb(priv->rx_buffers[i].skb); + } + } + + kfree(priv->rx_buffers); + priv->rx_buffers = NULL; + + IPW_DEBUG_INFO("exit\n"); +} + +static int ipw2100_read_mac_address(struct ipw2100_priv *priv) +{ + u32 length = ETH_ALEN; + u8 addr[ETH_ALEN]; + + int err; + + err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, addr, &length); + if (err) { + IPW_DEBUG_INFO("MAC address read failed\n"); + return -EIO; + } + + eth_hw_addr_set(priv->net_dev, addr); + IPW_DEBUG_INFO("card MAC is %pM\n", priv->net_dev->dev_addr); + + return 0; +} + +/******************************************************************** + * + * Firmware Commands + * + ********************************************************************/ + +static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode) +{ + struct host_command cmd = { + .host_command = ADAPTER_ADDRESS, + .host_command_sequence = 0, + .host_command_length = ETH_ALEN + }; + int err; + + IPW_DEBUG_HC("SET_MAC_ADDRESS\n"); + + IPW_DEBUG_INFO("enter\n"); + + if (priv->config & CFG_CUSTOM_MAC) { + memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN); + eth_hw_addr_set(priv->net_dev, priv->mac_addr); + } else + memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr, + ETH_ALEN); + + err = ipw2100_hw_send_command(priv, &cmd); + + IPW_DEBUG_INFO("exit\n"); + return err; +} + +static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type, + int batch_mode) +{ + struct host_command cmd = { + .host_command = PORT_TYPE, + .host_command_sequence = 0, + .host_command_length = sizeof(u32) + }; + int err; + + switch (port_type) { + case IW_MODE_INFRA: + cmd.host_command_parameters[0] = IPW_BSS; + break; + case IW_MODE_ADHOC: + cmd.host_command_parameters[0] = IPW_IBSS; + break; + } + + IPW_DEBUG_HC("PORT_TYPE: %s\n", + port_type == IPW_IBSS ? "Ad-Hoc" : "Managed"); + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: Could not disable adapter %d\n", + priv->net_dev->name, err); + return err; + } + } + + /* send cmd to firmware */ + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) + ipw2100_enable_adapter(priv); + + return err; +} + +static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel, + int batch_mode) +{ + struct host_command cmd = { + .host_command = CHANNEL, + .host_command_sequence = 0, + .host_command_length = sizeof(u32) + }; + int err; + + cmd.host_command_parameters[0] = channel; + + IPW_DEBUG_HC("CHANNEL: %d\n", channel); + + /* If BSS then we don't support channel selection */ + if (priv->ieee->iw_mode == IW_MODE_INFRA) + return 0; + + if ((channel != 0) && + ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL))) + return -EINVAL; + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) { + IPW_DEBUG_INFO("Failed to set channel to %d", channel); + return err; + } + + if (channel) + priv->config |= CFG_STATIC_CHANNEL; + else + priv->config &= ~CFG_STATIC_CHANNEL; + + priv->channel = channel; + + if (!batch_mode) { + err = ipw2100_enable_adapter(priv); + if (err) + return err; + } + + return 0; +} + +static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode) +{ + struct host_command cmd = { + .host_command = SYSTEM_CONFIG, + .host_command_sequence = 0, + .host_command_length = 12, + }; + u32 ibss_mask, len = sizeof(u32); + int err; + + /* Set system configuration */ + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START; + + cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK | + IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE; + + if (!(priv->config & CFG_LONG_PREAMBLE)) + cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO; + + err = ipw2100_get_ordinal(priv, + IPW_ORD_EEPROM_IBSS_11B_CHANNELS, + &ibss_mask, &len); + if (err) + ibss_mask = IPW_IBSS_11B_DEFAULT_MASK; + + cmd.host_command_parameters[1] = REG_CHANNEL_MASK; + cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask; + + /* 11b only */ + /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */ + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + return err; + +/* If IPv6 is configured in the kernel then we don't want to filter out all + * of the multicast packets as IPv6 needs some. */ +#if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE) + cmd.host_command = ADD_MULTICAST; + cmd.host_command_sequence = 0; + cmd.host_command_length = 0; + + ipw2100_hw_send_command(priv, &cmd); +#endif + if (!batch_mode) { + err = ipw2100_enable_adapter(priv); + if (err) + return err; + } + + return 0; +} + +static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate, + int batch_mode) +{ + struct host_command cmd = { + .host_command = BASIC_TX_RATES, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + cmd.host_command_parameters[0] = rate & TX_RATE_MASK; + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + /* Set BASIC TX Rate first */ + ipw2100_hw_send_command(priv, &cmd); + + /* Set TX Rate */ + cmd.host_command = TX_RATES; + ipw2100_hw_send_command(priv, &cmd); + + /* Set MSDU TX Rate */ + cmd.host_command = MSDU_TX_RATES; + ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) { + err = ipw2100_enable_adapter(priv); + if (err) + return err; + } + + priv->tx_rates = rate; + + return 0; +} + +static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level) +{ + struct host_command cmd = { + .host_command = POWER_MODE, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + cmd.host_command_parameters[0] = power_level; + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + return err; + + if (power_level == IPW_POWER_MODE_CAM) + priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); + else + priv->power_mode = IPW_POWER_ENABLED | power_level; + +#ifdef IPW2100_TX_POWER + if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) { + /* Set beacon interval */ + cmd.host_command = TX_POWER_INDEX; + cmd.host_command_parameters[0] = (u32) priv->adhoc_power; + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + return err; + } +#endif + + return 0; +} + +static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold) +{ + struct host_command cmd = { + .host_command = RTS_THRESHOLD, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + if (threshold & RTS_DISABLED) + cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD; + else + cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED; + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + return err; + + priv->rts_threshold = threshold; + + return 0; +} + +#if 0 +int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv, + u32 threshold, int batch_mode) +{ + struct host_command cmd = { + .host_command = FRAG_THRESHOLD, + .host_command_sequence = 0, + .host_command_length = 4, + .host_command_parameters[0] = 0, + }; + int err; + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + if (threshold == 0) + threshold = DEFAULT_FRAG_THRESHOLD; + else { + threshold = max(threshold, MIN_FRAG_THRESHOLD); + threshold = min(threshold, MAX_FRAG_THRESHOLD); + } + + cmd.host_command_parameters[0] = threshold; + + IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold); + + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) + ipw2100_enable_adapter(priv); + + if (!err) + priv->frag_threshold = threshold; + + return err; +} +#endif + +static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry) +{ + struct host_command cmd = { + .host_command = SHORT_RETRY_LIMIT, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + cmd.host_command_parameters[0] = retry; + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + return err; + + priv->short_retry_limit = retry; + + return 0; +} + +static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry) +{ + struct host_command cmd = { + .host_command = LONG_RETRY_LIMIT, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + cmd.host_command_parameters[0] = retry; + + err = ipw2100_hw_send_command(priv, &cmd); + if (err) + return err; + + priv->long_retry_limit = retry; + + return 0; +} + +static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid, + int batch_mode) +{ + struct host_command cmd = { + .host_command = MANDATORY_BSSID, + .host_command_sequence = 0, + .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN + }; + int err; + +#ifdef CONFIG_IPW2100_DEBUG + if (bssid != NULL) + IPW_DEBUG_HC("MANDATORY_BSSID: %pM\n", bssid); + else + IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n"); +#endif + /* if BSSID is empty then we disable mandatory bssid mode */ + if (bssid != NULL) + memcpy(cmd.host_command_parameters, bssid, ETH_ALEN); + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) + ipw2100_enable_adapter(priv); + + return err; +} + +static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv) +{ + struct host_command cmd = { + .host_command = DISASSOCIATION_BSSID, + .host_command_sequence = 0, + .host_command_length = ETH_ALEN + }; + int err; + + IPW_DEBUG_HC("DISASSOCIATION_BSSID\n"); + + /* The Firmware currently ignores the BSSID and just disassociates from + * the currently associated AP -- but in the off chance that a future + * firmware does use the BSSID provided here, we go ahead and try and + * set it to the currently associated AP's BSSID */ + memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN); + + err = ipw2100_hw_send_command(priv, &cmd); + + return err; +} + +static int ipw2100_set_wpa_ie(struct ipw2100_priv *, + struct ipw2100_wpa_assoc_frame *, int) + __attribute__ ((unused)); + +static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv, + struct ipw2100_wpa_assoc_frame *wpa_frame, + int batch_mode) +{ + struct host_command cmd = { + .host_command = SET_WPA_IE, + .host_command_sequence = 0, + .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame), + }; + int err; + + IPW_DEBUG_HC("SET_WPA_IE\n"); + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + memcpy(cmd.host_command_parameters, wpa_frame, + sizeof(struct ipw2100_wpa_assoc_frame)); + + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) { + if (ipw2100_enable_adapter(priv)) + err = -EIO; + } + + return err; +} + +struct security_info_params { + u32 allowed_ciphers; + u16 version; + u8 auth_mode; + u8 replay_counters_number; + u8 unicast_using_group; +} __packed; + +static int ipw2100_set_security_information(struct ipw2100_priv *priv, + int auth_mode, + int security_level, + int unicast_using_group, + int batch_mode) +{ + struct host_command cmd = { + .host_command = SET_SECURITY_INFORMATION, + .host_command_sequence = 0, + .host_command_length = sizeof(struct security_info_params) + }; + struct security_info_params *security = + (struct security_info_params *)&cmd.host_command_parameters; + int err; + memset(security, 0, sizeof(*security)); + + /* If shared key AP authentication is turned on, then we need to + * configure the firmware to try and use it. + * + * Actual data encryption/decryption is handled by the host. */ + security->auth_mode = auth_mode; + security->unicast_using_group = unicast_using_group; + + switch (security_level) { + default: + case SEC_LEVEL_0: + security->allowed_ciphers = IPW_NONE_CIPHER; + break; + case SEC_LEVEL_1: + security->allowed_ciphers = IPW_WEP40_CIPHER | + IPW_WEP104_CIPHER; + break; + case SEC_LEVEL_2: + security->allowed_ciphers = IPW_WEP40_CIPHER | + IPW_WEP104_CIPHER | IPW_TKIP_CIPHER; + break; + case SEC_LEVEL_2_CKIP: + security->allowed_ciphers = IPW_WEP40_CIPHER | + IPW_WEP104_CIPHER | IPW_CKIP_CIPHER; + break; + case SEC_LEVEL_3: + security->allowed_ciphers = IPW_WEP40_CIPHER | + IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER; + break; + } + + IPW_DEBUG_HC + ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n", + security->auth_mode, security->allowed_ciphers, security_level); + + security->replay_counters_number = 0; + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) + ipw2100_enable_adapter(priv); + + return err; +} + +static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power) +{ + struct host_command cmd = { + .host_command = TX_POWER_INDEX, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err = 0; + u32 tmp = tx_power; + + if (tx_power != IPW_TX_POWER_DEFAULT) + tmp = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 / + (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM); + + cmd.host_command_parameters[0] = tmp; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + err = ipw2100_hw_send_command(priv, &cmd); + if (!err) + priv->tx_power = tx_power; + + return 0; +} + +static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv, + u32 interval, int batch_mode) +{ + struct host_command cmd = { + .host_command = BEACON_INTERVAL, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + cmd.host_command_parameters[0] = interval; + + IPW_DEBUG_INFO("enter\n"); + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) { + err = ipw2100_enable_adapter(priv); + if (err) + return err; + } + } + + IPW_DEBUG_INFO("exit\n"); + + return 0; +} + +static void ipw2100_queues_initialize(struct ipw2100_priv *priv) +{ + ipw2100_tx_initialize(priv); + ipw2100_rx_initialize(priv); + ipw2100_msg_initialize(priv); +} + +static void ipw2100_queues_free(struct ipw2100_priv *priv) +{ + ipw2100_tx_free(priv); + ipw2100_rx_free(priv); + ipw2100_msg_free(priv); +} + +static int ipw2100_queues_allocate(struct ipw2100_priv *priv) +{ + if (ipw2100_tx_allocate(priv) || + ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv)) + goto fail; + + return 0; + + fail: + ipw2100_tx_free(priv); + ipw2100_rx_free(priv); + ipw2100_msg_free(priv); + return -ENOMEM; +} + +#define IPW_PRIVACY_CAPABLE 0x0008 + +static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags, + int batch_mode) +{ + struct host_command cmd = { + .host_command = WEP_FLAGS, + .host_command_sequence = 0, + .host_command_length = 4 + }; + int err; + + cmd.host_command_parameters[0] = flags; + + IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags); + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: Could not disable adapter %d\n", + priv->net_dev->name, err); + return err; + } + } + + /* send cmd to firmware */ + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) + ipw2100_enable_adapter(priv); + + return err; +} + +struct ipw2100_wep_key { + u8 idx; + u8 len; + u8 key[13]; +}; + +/* Macros to ease up priting WEP keys */ +#define WEP_FMT_64 "%02X%02X%02X%02X-%02X" +#define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X" +#define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4] +#define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10] + +/** + * ipw2100_set_key() - Set a the wep key + * + * @priv: struct to work on + * @idx: index of the key we want to set + * @key: ptr to the key data to set + * @len: length of the buffer at @key + * @batch_mode: FIXME perform the operation in batch mode, not + * disabling the device. + * + * @returns 0 if OK, < 0 errno code on error. + * + * Fill out a command structure with the new wep key, length an + * index and send it down the wire. + */ +static int ipw2100_set_key(struct ipw2100_priv *priv, + int idx, char *key, int len, int batch_mode) +{ + int keylen = len ? (len <= 5 ? 5 : 13) : 0; + struct host_command cmd = { + .host_command = WEP_KEY_INFO, + .host_command_sequence = 0, + .host_command_length = sizeof(struct ipw2100_wep_key), + }; + struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters; + int err; + + IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n", + idx, keylen, len); + + /* NOTE: We don't check cached values in case the firmware was reset + * or some other problem is occurring. If the user is setting the key, + * then we push the change */ + + wep_key->idx = idx; + wep_key->len = keylen; + + if (keylen) { + memcpy(wep_key->key, key, len); + memset(wep_key->key + len, 0, keylen - len); + } + + /* Will be optimized out on debug not being configured in */ + if (keylen == 0) + IPW_DEBUG_WEP("%s: Clearing key %d\n", + priv->net_dev->name, wep_key->idx); + else if (keylen == 5) + IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n", + priv->net_dev->name, wep_key->idx, wep_key->len, + WEP_STR_64(wep_key->key)); + else + IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128 + "\n", + priv->net_dev->name, wep_key->idx, wep_key->len, + WEP_STR_128(wep_key->key)); + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */ + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: Could not disable adapter %d\n", + priv->net_dev->name, err); + return err; + } + } + + /* send cmd to firmware */ + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) { + int err2 = ipw2100_enable_adapter(priv); + if (err == 0) + err = err2; + } + return err; +} + +static int ipw2100_set_key_index(struct ipw2100_priv *priv, + int idx, int batch_mode) +{ + struct host_command cmd = { + .host_command = WEP_KEY_INDEX, + .host_command_sequence = 0, + .host_command_length = 4, + .host_command_parameters = {idx}, + }; + int err; + + IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx); + + if (idx < 0 || idx > 3) + return -EINVAL; + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) { + printk(KERN_ERR DRV_NAME + ": %s: Could not disable adapter %d\n", + priv->net_dev->name, err); + return err; + } + } + + /* send cmd to firmware */ + err = ipw2100_hw_send_command(priv, &cmd); + + if (!batch_mode) + ipw2100_enable_adapter(priv); + + return err; +} + +static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode) +{ + int i, err, auth_mode, sec_level, use_group; + + if (!(priv->status & STATUS_RUNNING)) + return 0; + + if (!batch_mode) { + err = ipw2100_disable_adapter(priv); + if (err) + return err; + } + + if (!priv->ieee->sec.enabled) { + err = + ipw2100_set_security_information(priv, IPW_AUTH_OPEN, + SEC_LEVEL_0, 0, 1); + } else { + auth_mode = IPW_AUTH_OPEN; + if (priv->ieee->sec.flags & SEC_AUTH_MODE) { + if (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY) + auth_mode = IPW_AUTH_SHARED; + else if (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP) + auth_mode = IPW_AUTH_LEAP_CISCO_ID; + } + + sec_level = SEC_LEVEL_0; + if (priv->ieee->sec.flags & SEC_LEVEL) + sec_level = priv->ieee->sec.level; + + use_group = 0; + if (priv->ieee->sec.flags & SEC_UNICAST_GROUP) + use_group = priv->ieee->sec.unicast_uses_group; + + err = + ipw2100_set_security_information(priv, auth_mode, sec_level, + use_group, 1); + } + + if (err) + goto exit; + + if (priv->ieee->sec.enabled) { + for (i = 0; i < 4; i++) { + if (!(priv->ieee->sec.flags & (1 << i))) { + memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN); + priv->ieee->sec.key_sizes[i] = 0; + } else { + err = ipw2100_set_key(priv, i, + priv->ieee->sec.keys[i], + priv->ieee->sec. + key_sizes[i], 1); + if (err) + goto exit; + } + } + + ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1); + } + + /* Always enable privacy so the Host can filter WEP packets if + * encrypted data is sent up */ + err = + ipw2100_set_wep_flags(priv, + priv->ieee->sec. + enabled ? IPW_PRIVACY_CAPABLE : 0, 1); + if (err) + goto exit; + + priv->status &= ~STATUS_SECURITY_UPDATED; + + exit: + if (!batch_mode) + ipw2100_enable_adapter(priv); + + return err; +} + +static void ipw2100_security_work(struct work_struct *work) +{ + struct ipw2100_priv *priv = + container_of(work, struct ipw2100_priv, security_work.work); + + /* If we happen to have reconnected before we get a chance to + * process this, then update the security settings--which causes + * a disassociation to occur */ + if (!(priv->status & STATUS_ASSOCIATED) && + priv->status & STATUS_SECURITY_UPDATED) + ipw2100_configure_security(priv, 0); +} + +static void shim__set_security(struct net_device *dev, + struct libipw_security *sec) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int i; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) + goto done; + + for (i = 0; i < 4; i++) { + if (sec->flags & (1 << i)) { + priv->ieee->sec.key_sizes[i] = sec->key_sizes[i]; + if (sec->key_sizes[i] == 0) + priv->ieee->sec.flags &= ~(1 << i); + else + memcpy(priv->ieee->sec.keys[i], sec->keys[i], + sec->key_sizes[i]); + if (sec->level == SEC_LEVEL_1) { + priv->ieee->sec.flags |= (1 << i); + priv->status |= STATUS_SECURITY_UPDATED; + } else + priv->ieee->sec.flags &= ~(1 << i); + } + } + + if ((sec->flags & SEC_ACTIVE_KEY) && + priv->ieee->sec.active_key != sec->active_key) { + priv->ieee->sec.active_key = sec->active_key; + priv->ieee->sec.flags |= SEC_ACTIVE_KEY; + priv->status |= STATUS_SECURITY_UPDATED; + } + + if ((sec->flags & SEC_AUTH_MODE) && + (priv->ieee->sec.auth_mode != sec->auth_mode)) { + priv->ieee->sec.auth_mode = sec->auth_mode; + priv->ieee->sec.flags |= SEC_AUTH_MODE; + priv->status |= STATUS_SECURITY_UPDATED; + } + + if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) { + priv->ieee->sec.flags |= SEC_ENABLED; + priv->ieee->sec.enabled = sec->enabled; + priv->status |= STATUS_SECURITY_UPDATED; + } + + if (sec->flags & SEC_ENCRYPT) + priv->ieee->sec.encrypt = sec->encrypt; + + if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) { + priv->ieee->sec.level = sec->level; + priv->ieee->sec.flags |= SEC_LEVEL; + priv->status |= STATUS_SECURITY_UPDATED; + } + + IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n", + priv->ieee->sec.flags & (1 << 8) ? '1' : '0', + priv->ieee->sec.flags & (1 << 7) ? '1' : '0', + priv->ieee->sec.flags & (1 << 6) ? '1' : '0', + priv->ieee->sec.flags & (1 << 5) ? '1' : '0', + priv->ieee->sec.flags & (1 << 4) ? '1' : '0', + priv->ieee->sec.flags & (1 << 3) ? '1' : '0', + priv->ieee->sec.flags & (1 << 2) ? '1' : '0', + priv->ieee->sec.flags & (1 << 1) ? '1' : '0', + priv->ieee->sec.flags & (1 << 0) ? '1' : '0'); + +/* As a temporary work around to enable WPA until we figure out why + * wpa_supplicant toggles the security capability of the driver, which + * forces a disassociation with force_update... + * + * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/ + if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) + ipw2100_configure_security(priv, 0); + done: + mutex_unlock(&priv->action_mutex); +} + +static int ipw2100_adapter_setup(struct ipw2100_priv *priv) +{ + int err; + int batch_mode = 1; + u8 *bssid; + + IPW_DEBUG_INFO("enter\n"); + + err = ipw2100_disable_adapter(priv); + if (err) + return err; +#ifdef CONFIG_IPW2100_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + err = ipw2100_set_channel(priv, priv->channel, batch_mode); + if (err) + return err; + + IPW_DEBUG_INFO("exit\n"); + + return 0; + } +#endif /* CONFIG_IPW2100_MONITOR */ + + err = ipw2100_read_mac_address(priv); + if (err) + return -EIO; + + err = ipw2100_set_mac_address(priv, batch_mode); + if (err) + return err; + + err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode); + if (err) + return err; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + err = ipw2100_set_channel(priv, priv->channel, batch_mode); + if (err) + return err; + } + + err = ipw2100_system_config(priv, batch_mode); + if (err) + return err; + + err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode); + if (err) + return err; + + /* Default to power mode OFF */ + err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM); + if (err) + return err; + + err = ipw2100_set_rts_threshold(priv, priv->rts_threshold); + if (err) + return err; + + if (priv->config & CFG_STATIC_BSSID) + bssid = priv->bssid; + else + bssid = NULL; + err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode); + if (err) + return err; + + if (priv->config & CFG_STATIC_ESSID) + err = ipw2100_set_essid(priv, priv->essid, priv->essid_len, + batch_mode); + else + err = ipw2100_set_essid(priv, NULL, 0, batch_mode); + if (err) + return err; + + err = ipw2100_configure_security(priv, batch_mode); + if (err) + return err; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + err = + ipw2100_set_ibss_beacon_interval(priv, + priv->beacon_interval, + batch_mode); + if (err) + return err; + + err = ipw2100_set_tx_power(priv, priv->tx_power); + if (err) + return err; + } + + /* + err = ipw2100_set_fragmentation_threshold( + priv, priv->frag_threshold, batch_mode); + if (err) + return err; + */ + + IPW_DEBUG_INFO("exit\n"); + + return 0; +} + +/************************************************************************* + * + * EXTERNALLY CALLED METHODS + * + *************************************************************************/ + +/* This method is called by the network layer -- not to be confused with + * ipw2100_set_mac_address() declared above called by this driver (and this + * method as well) to talk to the firmware */ +static int ipw2100_set_address(struct net_device *dev, void *p) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + struct sockaddr *addr = p; + int err = 0; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + mutex_lock(&priv->action_mutex); + + priv->config |= CFG_CUSTOM_MAC; + memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); + + err = ipw2100_set_mac_address(priv, 0); + if (err) + goto done; + + priv->reset_backoff = 0; + mutex_unlock(&priv->action_mutex); + ipw2100_reset_adapter(&priv->reset_work.work); + return 0; + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_open(struct net_device *dev) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + unsigned long flags; + IPW_DEBUG_INFO("dev->open\n"); + + spin_lock_irqsave(&priv->low_lock, flags); + if (priv->status & STATUS_ASSOCIATED) { + netif_carrier_on(dev); + netif_start_queue(dev); + } + spin_unlock_irqrestore(&priv->low_lock, flags); + + return 0; +} + +static int ipw2100_close(struct net_device *dev) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + unsigned long flags; + struct list_head *element; + struct ipw2100_tx_packet *packet; + + IPW_DEBUG_INFO("enter\n"); + + spin_lock_irqsave(&priv->low_lock, flags); + + if (priv->status & STATUS_ASSOCIATED) + netif_carrier_off(dev); + netif_stop_queue(dev); + + /* Flush the TX queue ... */ + while (!list_empty(&priv->tx_pend_list)) { + element = priv->tx_pend_list.next; + packet = list_entry(element, struct ipw2100_tx_packet, list); + + list_del(element); + DEC_STAT(&priv->tx_pend_stat); + + libipw_txb_free(packet->info.d_struct.txb); + packet->info.d_struct.txb = NULL; + + list_add_tail(element, &priv->tx_free_list); + INC_STAT(&priv->tx_free_stat); + } + spin_unlock_irqrestore(&priv->low_lock, flags); + + IPW_DEBUG_INFO("exit\n"); + + return 0; +} + +/* + * TODO: Fix this function... its just wrong + */ +static void ipw2100_tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + + dev->stats.tx_errors++; + +#ifdef CONFIG_IPW2100_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) + return; +#endif + + IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n", + dev->name); + schedule_reset(priv); +} + +static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value) +{ + /* This is called when wpa_supplicant loads and closes the driver + * interface. */ + priv->ieee->wpa_enabled = value; + return 0; +} + +static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value) +{ + + struct libipw_device *ieee = priv->ieee; + struct libipw_security sec = { + .flags = SEC_AUTH_MODE, + }; + int ret = 0; + + if (value & IW_AUTH_ALG_SHARED_KEY) { + sec.auth_mode = WLAN_AUTH_SHARED_KEY; + ieee->open_wep = 0; + } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) { + sec.auth_mode = WLAN_AUTH_OPEN; + ieee->open_wep = 1; + } else if (value & IW_AUTH_ALG_LEAP) { + sec.auth_mode = WLAN_AUTH_LEAP; + ieee->open_wep = 1; + } else + return -EINVAL; + + if (ieee->set_security) + ieee->set_security(ieee->dev, &sec); + else + ret = -EOPNOTSUPP; + + return ret; +} + +static void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv, + char *wpa_ie, int wpa_ie_len) +{ + + struct ipw2100_wpa_assoc_frame frame; + + frame.fixed_ie_mask = 0; + + /* copy WPA IE */ + memcpy(frame.var_ie, wpa_ie, wpa_ie_len); + frame.var_ie_len = wpa_ie_len; + + /* make sure WPA is enabled */ + ipw2100_wpa_enable(priv, 1); + ipw2100_set_wpa_ie(priv, &frame, 0); +} + +static void ipw_ethtool_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + char fw_ver[64], ucode_ver[64]; + + strscpy(info->driver, DRV_NAME, sizeof(info->driver)); + strscpy(info->version, DRV_VERSION, sizeof(info->version)); + + ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver)); + ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver)); + + snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s", + fw_ver, priv->eeprom_version, ucode_ver); + + strscpy(info->bus_info, pci_name(priv->pci_dev), + sizeof(info->bus_info)); +} + +static u32 ipw2100_ethtool_get_link(struct net_device *dev) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + return (priv->status & STATUS_ASSOCIATED) ? 1 : 0; +} + +static const struct ethtool_ops ipw2100_ethtool_ops = { + .get_link = ipw2100_ethtool_get_link, + .get_drvinfo = ipw_ethtool_get_drvinfo, +}; + +static void ipw2100_hang_check(struct work_struct *work) +{ + struct ipw2100_priv *priv = + container_of(work, struct ipw2100_priv, hang_check.work); + unsigned long flags; + u32 rtc = 0xa5a5a5a5; + u32 len = sizeof(rtc); + int restart = 0; + + spin_lock_irqsave(&priv->low_lock, flags); + + if (priv->fatal_error != 0) { + /* If fatal_error is set then we need to restart */ + IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n", + priv->net_dev->name); + + restart = 1; + } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) || + (rtc == priv->last_rtc)) { + /* Check if firmware is hung */ + IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n", + priv->net_dev->name); + + restart = 1; + } + + if (restart) { + /* Kill timer */ + priv->stop_hang_check = 1; + priv->hangs++; + + /* Restart the NIC */ + schedule_reset(priv); + } + + priv->last_rtc = rtc; + + if (!priv->stop_hang_check) + schedule_delayed_work(&priv->hang_check, HZ / 2); + + spin_unlock_irqrestore(&priv->low_lock, flags); +} + +static void ipw2100_rf_kill(struct work_struct *work) +{ + struct ipw2100_priv *priv = + container_of(work, struct ipw2100_priv, rf_kill.work); + unsigned long flags; + + spin_lock_irqsave(&priv->low_lock, flags); + + if (rf_kill_active(priv)) { + IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n"); + if (!priv->stop_rf_kill) + schedule_delayed_work(&priv->rf_kill, + round_jiffies_relative(HZ)); + goto exit_unlock; + } + + /* RF Kill is now disabled, so bring the device back up */ + + if (!(priv->status & STATUS_RF_KILL_MASK)) { + IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting " + "device\n"); + schedule_reset(priv); + } else + IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still " + "enabled\n"); + + exit_unlock: + spin_unlock_irqrestore(&priv->low_lock, flags); +} + +static void ipw2100_irq_tasklet(struct tasklet_struct *t); + +static const struct net_device_ops ipw2100_netdev_ops = { + .ndo_open = ipw2100_open, + .ndo_stop = ipw2100_close, + .ndo_start_xmit = libipw_xmit, + .ndo_tx_timeout = ipw2100_tx_timeout, + .ndo_set_mac_address = ipw2100_set_address, + .ndo_validate_addr = eth_validate_addr, +}; + +/* Look into using netdev destructor to shutdown libipw? */ + +static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev, + void __iomem * ioaddr) +{ + struct ipw2100_priv *priv; + struct net_device *dev; + + dev = alloc_libipw(sizeof(struct ipw2100_priv), 0); + if (!dev) + return NULL; + priv = libipw_priv(dev); + priv->ieee = netdev_priv(dev); + priv->pci_dev = pci_dev; + priv->net_dev = dev; + priv->ioaddr = ioaddr; + + priv->ieee->hard_start_xmit = ipw2100_tx; + priv->ieee->set_security = shim__set_security; + + priv->ieee->perfect_rssi = -20; + priv->ieee->worst_rssi = -85; + + dev->netdev_ops = &ipw2100_netdev_ops; + dev->ethtool_ops = &ipw2100_ethtool_ops; + dev->wireless_handlers = &ipw2100_wx_handler_def; + priv->wireless_data.libipw = priv->ieee; + dev->wireless_data = &priv->wireless_data; + dev->watchdog_timeo = 3 * HZ; + dev->irq = 0; + dev->min_mtu = 68; + dev->max_mtu = LIBIPW_DATA_LEN; + + /* NOTE: We don't use the wireless_handlers hook + * in dev as the system will start throwing WX requests + * to us before we're actually initialized and it just + * ends up causing problems. So, we just handle + * the WX extensions through the ipw2100_ioctl interface */ + + /* memset() puts everything to 0, so we only have explicitly set + * those values that need to be something else */ + + /* If power management is turned on, default to AUTO mode */ + priv->power_mode = IPW_POWER_AUTO; + +#ifdef CONFIG_IPW2100_MONITOR + priv->config |= CFG_CRC_CHECK; +#endif + priv->ieee->wpa_enabled = 0; + priv->ieee->drop_unencrypted = 0; + priv->ieee->privacy_invoked = 0; + priv->ieee->ieee802_1x = 1; + + /* Set module parameters */ + switch (network_mode) { + case 1: + priv->ieee->iw_mode = IW_MODE_ADHOC; + break; +#ifdef CONFIG_IPW2100_MONITOR + case 2: + priv->ieee->iw_mode = IW_MODE_MONITOR; + break; +#endif + default: + case 0: + priv->ieee->iw_mode = IW_MODE_INFRA; + break; + } + + if (disable == 1) + priv->status |= STATUS_RF_KILL_SW; + + if (channel != 0 && + ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) { + priv->config |= CFG_STATIC_CHANNEL; + priv->channel = channel; + } + + if (associate) + priv->config |= CFG_ASSOCIATE; + + priv->beacon_interval = DEFAULT_BEACON_INTERVAL; + priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT; + priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT; + priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED; + priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED; + priv->tx_power = IPW_TX_POWER_DEFAULT; + priv->tx_rates = DEFAULT_TX_RATES; + + strcpy(priv->nick, "ipw2100"); + + spin_lock_init(&priv->low_lock); + mutex_init(&priv->action_mutex); + mutex_init(&priv->adapter_mutex); + + init_waitqueue_head(&priv->wait_command_queue); + + netif_carrier_off(dev); + + INIT_LIST_HEAD(&priv->msg_free_list); + INIT_LIST_HEAD(&priv->msg_pend_list); + INIT_STAT(&priv->msg_free_stat); + INIT_STAT(&priv->msg_pend_stat); + + INIT_LIST_HEAD(&priv->tx_free_list); + INIT_LIST_HEAD(&priv->tx_pend_list); + INIT_STAT(&priv->tx_free_stat); + INIT_STAT(&priv->tx_pend_stat); + + INIT_LIST_HEAD(&priv->fw_pend_list); + INIT_STAT(&priv->fw_pend_stat); + + INIT_DELAYED_WORK(&priv->reset_work, ipw2100_reset_adapter); + INIT_DELAYED_WORK(&priv->security_work, ipw2100_security_work); + INIT_DELAYED_WORK(&priv->wx_event_work, ipw2100_wx_event_work); + INIT_DELAYED_WORK(&priv->hang_check, ipw2100_hang_check); + INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill); + INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event); + + tasklet_setup(&priv->irq_tasklet, ipw2100_irq_tasklet); + + /* NOTE: We do not start the deferred work for status checks yet */ + priv->stop_rf_kill = 1; + priv->stop_hang_check = 1; + + return dev; +} + +static int ipw2100_pci_init_one(struct pci_dev *pci_dev, + const struct pci_device_id *ent) +{ + void __iomem *ioaddr; + struct net_device *dev = NULL; + struct ipw2100_priv *priv = NULL; + int err = 0; + int registered = 0; + u32 val; + + IPW_DEBUG_INFO("enter\n"); + + if (!(pci_resource_flags(pci_dev, 0) & IORESOURCE_MEM)) { + IPW_DEBUG_INFO("weird - resource type is not memory\n"); + err = -ENODEV; + goto out; + } + + ioaddr = pci_iomap(pci_dev, 0, 0); + if (!ioaddr) { + printk(KERN_WARNING DRV_NAME + "Error calling ioremap.\n"); + err = -EIO; + goto fail; + } + + /* allocate and initialize our net_device */ + dev = ipw2100_alloc_device(pci_dev, ioaddr); + if (!dev) { + printk(KERN_WARNING DRV_NAME + "Error calling ipw2100_alloc_device.\n"); + err = -ENOMEM; + goto fail; + } + + /* set up PCI mappings for device */ + err = pci_enable_device(pci_dev); + if (err) { + printk(KERN_WARNING DRV_NAME + "Error calling pci_enable_device.\n"); + return err; + } + + priv = libipw_priv(dev); + + pci_set_master(pci_dev); + pci_set_drvdata(pci_dev, priv); + + err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32)); + if (err) { + printk(KERN_WARNING DRV_NAME + "Error calling pci_set_dma_mask.\n"); + pci_disable_device(pci_dev); + return err; + } + + err = pci_request_regions(pci_dev, DRV_NAME); + if (err) { + printk(KERN_WARNING DRV_NAME + "Error calling pci_request_regions.\n"); + pci_disable_device(pci_dev); + return err; + } + + /* We disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state */ + pci_read_config_dword(pci_dev, 0x40, &val); + if ((val & 0x0000ff00) != 0) + pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff); + + if (!ipw2100_hw_is_adapter_in_system(dev)) { + printk(KERN_WARNING DRV_NAME + "Device not found via register read.\n"); + err = -ENODEV; + goto fail; + } + + SET_NETDEV_DEV(dev, &pci_dev->dev); + + /* Force interrupts to be shut off on the device */ + priv->status |= STATUS_INT_ENABLED; + ipw2100_disable_interrupts(priv); + + /* Allocate and initialize the Tx/Rx queues and lists */ + if (ipw2100_queues_allocate(priv)) { + printk(KERN_WARNING DRV_NAME + "Error calling ipw2100_queues_allocate.\n"); + err = -ENOMEM; + goto fail; + } + ipw2100_queues_initialize(priv); + + err = request_irq(pci_dev->irq, + ipw2100_interrupt, IRQF_SHARED, dev->name, priv); + if (err) { + printk(KERN_WARNING DRV_NAME + "Error calling request_irq: %d.\n", pci_dev->irq); + goto fail; + } + dev->irq = pci_dev->irq; + + IPW_DEBUG_INFO("Attempting to register device...\n"); + + printk(KERN_INFO DRV_NAME + ": Detected Intel PRO/Wireless 2100 Network Connection\n"); + + err = ipw2100_up(priv, 1); + if (err) + goto fail; + + err = ipw2100_wdev_init(dev); + if (err) + goto fail; + registered = 1; + + /* Bring up the interface. Pre 0.46, after we registered the + * network device we would call ipw2100_up. This introduced a race + * condition with newer hotplug configurations (network was coming + * up and making calls before the device was initialized). + */ + err = register_netdev(dev); + if (err) { + printk(KERN_WARNING DRV_NAME + "Error calling register_netdev.\n"); + goto fail; + } + registered = 2; + + mutex_lock(&priv->action_mutex); + + IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev)); + + /* perform this after register_netdev so that dev->name is set */ + err = sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group); + if (err) + goto fail_unlock; + + /* If the RF Kill switch is disabled, go ahead and complete the + * startup sequence */ + if (!(priv->status & STATUS_RF_KILL_MASK)) { + /* Enable the adapter - sends HOST_COMPLETE */ + if (ipw2100_enable_adapter(priv)) { + printk(KERN_WARNING DRV_NAME + ": %s: failed in call to enable adapter.\n", + priv->net_dev->name); + ipw2100_hw_stop_adapter(priv); + err = -EIO; + goto fail_unlock; + } + + /* Start a scan . . . */ + ipw2100_set_scan_options(priv); + ipw2100_start_scan(priv); + } + + IPW_DEBUG_INFO("exit\n"); + + priv->status |= STATUS_INITIALIZED; + + mutex_unlock(&priv->action_mutex); +out: + return err; + + fail_unlock: + mutex_unlock(&priv->action_mutex); + fail: + if (dev) { + if (registered >= 2) + unregister_netdev(dev); + + if (registered) { + wiphy_unregister(priv->ieee->wdev.wiphy); + kfree(priv->ieee->bg_band.channels); + } + + ipw2100_hw_stop_adapter(priv); + + ipw2100_disable_interrupts(priv); + + if (dev->irq) + free_irq(dev->irq, priv); + + ipw2100_kill_works(priv); + + /* These are safe to call even if they weren't allocated */ + ipw2100_queues_free(priv); + sysfs_remove_group(&pci_dev->dev.kobj, + &ipw2100_attribute_group); + + free_libipw(dev, 0); + } + + pci_iounmap(pci_dev, ioaddr); + + pci_release_regions(pci_dev); + pci_disable_device(pci_dev); + goto out; +} + +static void ipw2100_pci_remove_one(struct pci_dev *pci_dev) +{ + struct ipw2100_priv *priv = pci_get_drvdata(pci_dev); + struct net_device *dev = priv->net_dev; + + mutex_lock(&priv->action_mutex); + + priv->status &= ~STATUS_INITIALIZED; + + sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group); + +#ifdef CONFIG_PM + if (ipw2100_firmware.version) + ipw2100_release_firmware(priv, &ipw2100_firmware); +#endif + /* Take down the hardware */ + ipw2100_down(priv); + + /* Release the mutex so that the network subsystem can + * complete any needed calls into the driver... */ + mutex_unlock(&priv->action_mutex); + + /* Unregister the device first - this results in close() + * being called if the device is open. If we free storage + * first, then close() will crash. + * FIXME: remove the comment above. */ + unregister_netdev(dev); + + ipw2100_kill_works(priv); + + ipw2100_queues_free(priv); + + /* Free potential debugging firmware snapshot */ + ipw2100_snapshot_free(priv); + + free_irq(dev->irq, priv); + + pci_iounmap(pci_dev, priv->ioaddr); + + /* wiphy_unregister needs to be here, before free_libipw */ + wiphy_unregister(priv->ieee->wdev.wiphy); + kfree(priv->ieee->bg_band.channels); + free_libipw(dev, 0); + + pci_release_regions(pci_dev); + pci_disable_device(pci_dev); + + IPW_DEBUG_INFO("exit\n"); +} + +static int __maybe_unused ipw2100_suspend(struct device *dev_d) +{ + struct ipw2100_priv *priv = dev_get_drvdata(dev_d); + struct net_device *dev = priv->net_dev; + + IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name); + + mutex_lock(&priv->action_mutex); + if (priv->status & STATUS_INITIALIZED) { + /* Take down the device; powers it off, etc. */ + ipw2100_down(priv); + } + + /* Remove the PRESENT state of the device */ + netif_device_detach(dev); + + priv->suspend_at = ktime_get_boottime_seconds(); + + mutex_unlock(&priv->action_mutex); + + return 0; +} + +static int __maybe_unused ipw2100_resume(struct device *dev_d) +{ + struct pci_dev *pci_dev = to_pci_dev(dev_d); + struct ipw2100_priv *priv = pci_get_drvdata(pci_dev); + struct net_device *dev = priv->net_dev; + u32 val; + + if (IPW2100_PM_DISABLED) + return 0; + + mutex_lock(&priv->action_mutex); + + IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name); + + /* + * Suspend/Resume resets the PCI configuration space, so we have to + * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries + * from interfering with C3 CPU state. pci_restore_state won't help + * here since it only restores the first 64 bytes pci config header. + */ + pci_read_config_dword(pci_dev, 0x40, &val); + if ((val & 0x0000ff00) != 0) + pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff); + + /* Set the device back into the PRESENT state; this will also wake + * the queue of needed */ + netif_device_attach(dev); + + priv->suspend_time = ktime_get_boottime_seconds() - priv->suspend_at; + + /* Bring the device back up */ + if (!(priv->status & STATUS_RF_KILL_SW)) + ipw2100_up(priv, 0); + + mutex_unlock(&priv->action_mutex); + + return 0; +} + +static void ipw2100_shutdown(struct pci_dev *pci_dev) +{ + struct ipw2100_priv *priv = pci_get_drvdata(pci_dev); + + /* Take down the device; powers it off, etc. */ + ipw2100_down(priv); + + pci_disable_device(pci_dev); +} + +#define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x } + +static const struct pci_device_id ipw2100_pci_id_table[] = { + IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */ + IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */ + IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */ + IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */ + IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */ + IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */ + IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */ + + IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */ + + IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */ + IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */ + IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */ + IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */ + IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */ + IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */ + IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */ + + IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */ + + IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */ + + IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */ + IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */ + IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */ + + IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */ + {0,}, +}; + +MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table); + +static SIMPLE_DEV_PM_OPS(ipw2100_pm_ops, ipw2100_suspend, ipw2100_resume); + +static struct pci_driver ipw2100_pci_driver = { + .name = DRV_NAME, + .id_table = ipw2100_pci_id_table, + .probe = ipw2100_pci_init_one, + .remove = ipw2100_pci_remove_one, + .driver.pm = &ipw2100_pm_ops, + .shutdown = ipw2100_shutdown, +}; + +/* + * Initialize the ipw2100 driver/module + * + * @returns 0 if ok, < 0 errno node con error. + * + * Note: we cannot init the /proc stuff until the PCI driver is there, + * or we risk an unlikely race condition on someone accessing + * uninitialized data in the PCI dev struct through /proc. + */ +static int __init ipw2100_init(void) +{ + int ret; + + printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION); + printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT); + + cpu_latency_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE); + + ret = pci_register_driver(&ipw2100_pci_driver); + if (ret) + goto out; + +#ifdef CONFIG_IPW2100_DEBUG + ipw2100_debug_level = debug; + ret = driver_create_file(&ipw2100_pci_driver.driver, + &driver_attr_debug_level); +#endif + +out: + return ret; +} + +/* + * Cleanup ipw2100 driver registration + */ +static void __exit ipw2100_exit(void) +{ + /* FIXME: IPG: check that we have no instances of the devices open */ +#ifdef CONFIG_IPW2100_DEBUG + driver_remove_file(&ipw2100_pci_driver.driver, + &driver_attr_debug_level); +#endif + pci_unregister_driver(&ipw2100_pci_driver); + cpu_latency_qos_remove_request(&ipw2100_pm_qos_req); +} + +module_init(ipw2100_init); +module_exit(ipw2100_exit); + +static int ipw2100_wx_get_name(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + if (!(priv->status & STATUS_ASSOCIATED)) + strcpy(wrqu->name, "unassociated"); + else + snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b"); + + IPW_DEBUG_WX("Name: %s\n", wrqu->name); + return 0; +} + +static int ipw2100_wx_set_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + struct iw_freq *fwrq = &wrqu->freq; + int err = 0; + + if (priv->ieee->iw_mode == IW_MODE_INFRA) + return -EOPNOTSUPP; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + /* if setting by freq convert to channel */ + if (fwrq->e == 1) { + if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) { + int f = fwrq->m / 100000; + int c = 0; + + while ((c < REG_MAX_CHANNEL) && + (f != ipw2100_frequencies[c])) + c++; + + /* hack to fall through */ + fwrq->e = 0; + fwrq->m = c + 1; + } + } + + if (fwrq->e > 0 || fwrq->m > 1000) { + err = -EOPNOTSUPP; + goto done; + } else { /* Set the channel */ + IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m); + err = ipw2100_set_channel(priv, fwrq->m, 0); + } + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + wrqu->freq.e = 0; + + /* If we are associated, trying to associate, or have a statically + * configured CHANNEL then return that; otherwise return ANY */ + if (priv->config & CFG_STATIC_CHANNEL || + priv->status & STATUS_ASSOCIATED) + wrqu->freq.m = priv->channel; + else + wrqu->freq.m = 0; + + IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel); + return 0; + +} + +static int ipw2100_wx_set_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err = 0; + + IPW_DEBUG_WX("SET Mode -> %d\n", wrqu->mode); + + if (wrqu->mode == priv->ieee->iw_mode) + return 0; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + switch (wrqu->mode) { +#ifdef CONFIG_IPW2100_MONITOR + case IW_MODE_MONITOR: + err = ipw2100_switch_mode(priv, IW_MODE_MONITOR); + break; +#endif /* CONFIG_IPW2100_MONITOR */ + case IW_MODE_ADHOC: + err = ipw2100_switch_mode(priv, IW_MODE_ADHOC); + break; + case IW_MODE_INFRA: + case IW_MODE_AUTO: + default: + err = ipw2100_switch_mode(priv, IW_MODE_INFRA); + break; + } + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + wrqu->mode = priv->ieee->iw_mode; + IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode); + + return 0; +} + +#define POWER_MODES 5 + +/* Values are in microsecond */ +static const s32 timeout_duration[POWER_MODES] = { + 350000, + 250000, + 75000, + 37000, + 25000, +}; + +static const s32 period_duration[POWER_MODES] = { + 400000, + 700000, + 1000000, + 1000000, + 1000000 +}; + +static int ipw2100_wx_get_range(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + struct iw_range *range = (struct iw_range *)extra; + u16 val; + int i, level; + + wrqu->data.length = sizeof(*range); + memset(range, 0, sizeof(*range)); + + /* Let's try to keep this struct in the same order as in + * linux/include/wireless.h + */ + + /* TODO: See what values we can set, and remove the ones we can't + * set, or fill them with some default data. + */ + + /* ~5 Mb/s real (802.11b) */ + range->throughput = 5 * 1000 * 1000; + +// range->sensitivity; /* signal level threshold range */ + + range->max_qual.qual = 100; + /* TODO: Find real max RSSI and stick here */ + range->max_qual.level = 0; + range->max_qual.noise = 0; + range->max_qual.updated = 7; /* Updated all three */ + + range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */ + /* TODO: Find real 'good' to 'bad' threshold value for RSSI */ + range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM; + range->avg_qual.noise = 0; + range->avg_qual.updated = 7; /* Updated all three */ + + range->num_bitrates = RATE_COUNT; + + for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) { + range->bitrate[i] = ipw2100_bg_rates[i].bitrate * 100 * 1000; + } + + range->min_rts = MIN_RTS_THRESHOLD; + range->max_rts = MAX_RTS_THRESHOLD; + range->min_frag = MIN_FRAG_THRESHOLD; + range->max_frag = MAX_FRAG_THRESHOLD; + + range->min_pmp = period_duration[0]; /* Minimal PM period */ + range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */ + range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */ + range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */ + + /* How to decode max/min PM period */ + range->pmp_flags = IW_POWER_PERIOD; + /* How to decode max/min PM period */ + range->pmt_flags = IW_POWER_TIMEOUT; + /* What PM options are supported */ + range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD; + + range->encoding_size[0] = 5; + range->encoding_size[1] = 13; /* Different token sizes */ + range->num_encoding_sizes = 2; /* Number of entry in the list */ + range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */ +// range->encoding_login_index; /* token index for login token */ + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + range->txpower_capa = IW_TXPOW_DBM; + range->num_txpower = IW_MAX_TXPOWER; + for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16); + i < IW_MAX_TXPOWER; + i++, level -= + ((IPW_TX_POWER_MAX_DBM - + IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1)) + range->txpower[i] = level / 16; + } else { + range->txpower_capa = 0; + range->num_txpower = 0; + } + + /* Set the Wireless Extension versions */ + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = 18; + +// range->retry_capa; /* What retry options are supported */ +// range->retry_flags; /* How to decode max/min retry limit */ +// range->r_time_flags; /* How to decode max/min retry life */ +// range->min_retry; /* Minimal number of retries */ +// range->max_retry; /* Maximal number of retries */ +// range->min_r_time; /* Minimal retry lifetime */ +// range->max_r_time; /* Maximal retry lifetime */ + + range->num_channels = FREQ_COUNT; + + val = 0; + for (i = 0; i < FREQ_COUNT; i++) { + // TODO: Include only legal frequencies for some countries +// if (local->channel_mask & (1 << i)) { + range->freq[val].i = i + 1; + range->freq[val].m = ipw2100_frequencies[i] * 100000; + range->freq[val].e = 1; + val++; +// } + if (val == IW_MAX_FREQUENCIES) + break; + } + range->num_frequency = val; + + /* Event capability (kernel + driver) */ + range->event_capa[0] = (IW_EVENT_CAPA_K_0 | + IW_EVENT_CAPA_MASK(SIOCGIWAP)); + range->event_capa[1] = IW_EVENT_CAPA_K_1; + + range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | + IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; + + IPW_DEBUG_WX("GET Range\n"); + + return 0; +} + +static int ipw2100_wx_set_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err = 0; + + // sanity checks + if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) + return -EINVAL; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) || + is_zero_ether_addr(wrqu->ap_addr.sa_data)) { + /* we disable mandatory BSSID association */ + IPW_DEBUG_WX("exit - disable mandatory BSSID\n"); + priv->config &= ~CFG_STATIC_BSSID; + err = ipw2100_set_mandatory_bssid(priv, NULL, 0); + goto done; + } + + priv->config |= CFG_STATIC_BSSID; + memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN); + + err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0); + + IPW_DEBUG_WX("SET BSSID -> %pM\n", wrqu->ap_addr.sa_data); + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + /* If we are associated, trying to associate, or have a statically + * configured BSSID then return that; otherwise return ANY */ + if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) { + wrqu->ap_addr.sa_family = ARPHRD_ETHER; + memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN); + } else + eth_zero_addr(wrqu->ap_addr.sa_data); + + IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", wrqu->ap_addr.sa_data); + return 0; +} + +static int ipw2100_wx_set_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + char *essid = ""; /* ANY */ + int length = 0; + int err = 0; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (wrqu->essid.flags && wrqu->essid.length) { + length = wrqu->essid.length; + essid = extra; + } + + if (length == 0) { + IPW_DEBUG_WX("Setting ESSID to ANY\n"); + priv->config &= ~CFG_STATIC_ESSID; + err = ipw2100_set_essid(priv, NULL, 0, 0); + goto done; + } + + length = min(length, IW_ESSID_MAX_SIZE); + + priv->config |= CFG_STATIC_ESSID; + + if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) { + IPW_DEBUG_WX("ESSID set to current ESSID.\n"); + err = 0; + goto done; + } + + IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, essid, length); + + priv->essid_len = length; + memcpy(priv->essid, essid, priv->essid_len); + + err = ipw2100_set_essid(priv, essid, length, 0); + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + /* If we are associated, trying to associate, or have a statically + * configured ESSID then return that; otherwise return ANY */ + if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) { + IPW_DEBUG_WX("Getting essid: '%*pE'\n", + priv->essid_len, priv->essid); + memcpy(extra, priv->essid, priv->essid_len); + wrqu->essid.length = priv->essid_len; + wrqu->essid.flags = 1; /* active */ + } else { + IPW_DEBUG_WX("Getting essid: ANY\n"); + wrqu->essid.length = 0; + wrqu->essid.flags = 0; /* active */ + } + + return 0; +} + +static int ipw2100_wx_set_nick(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + if (wrqu->data.length > IW_ESSID_MAX_SIZE) + return -E2BIG; + + wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick)); + memset(priv->nick, 0, sizeof(priv->nick)); + memcpy(priv->nick, extra, wrqu->data.length); + + IPW_DEBUG_WX("SET Nickname -> %s\n", priv->nick); + + return 0; +} + +static int ipw2100_wx_get_nick(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + wrqu->data.length = strlen(priv->nick); + memcpy(extra, priv->nick, wrqu->data.length); + wrqu->data.flags = 1; /* active */ + + IPW_DEBUG_WX("GET Nickname -> %s\n", extra); + + return 0; +} + +static int ipw2100_wx_set_rate(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + u32 target_rate = wrqu->bitrate.value; + u32 rate; + int err = 0; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + rate = 0; + + if (target_rate == 1000000 || + (!wrqu->bitrate.fixed && target_rate > 1000000)) + rate |= TX_RATE_1_MBIT; + if (target_rate == 2000000 || + (!wrqu->bitrate.fixed && target_rate > 2000000)) + rate |= TX_RATE_2_MBIT; + if (target_rate == 5500000 || + (!wrqu->bitrate.fixed && target_rate > 5500000)) + rate |= TX_RATE_5_5_MBIT; + if (target_rate == 11000000 || + (!wrqu->bitrate.fixed && target_rate > 11000000)) + rate |= TX_RATE_11_MBIT; + if (rate == 0) + rate = DEFAULT_TX_RATES; + + err = ipw2100_set_tx_rates(priv, rate, 0); + + IPW_DEBUG_WX("SET Rate -> %04X\n", rate); + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_rate(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int val; + unsigned int len = sizeof(val); + int err = 0; + + if (!(priv->status & STATUS_ENABLED) || + priv->status & STATUS_RF_KILL_MASK || + !(priv->status & STATUS_ASSOCIATED)) { + wrqu->bitrate.value = 0; + return 0; + } + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len); + if (err) { + IPW_DEBUG_WX("failed querying ordinals.\n"); + goto done; + } + + switch (val & TX_RATE_MASK) { + case TX_RATE_1_MBIT: + wrqu->bitrate.value = 1000000; + break; + case TX_RATE_2_MBIT: + wrqu->bitrate.value = 2000000; + break; + case TX_RATE_5_5_MBIT: + wrqu->bitrate.value = 5500000; + break; + case TX_RATE_11_MBIT: + wrqu->bitrate.value = 11000000; + break; + default: + wrqu->bitrate.value = 0; + } + + IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value); + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_set_rts(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int value, err; + + /* Auto RTS not yet supported */ + if (wrqu->rts.fixed == 0) + return -EINVAL; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (wrqu->rts.disabled) + value = priv->rts_threshold | RTS_DISABLED; + else { + if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) { + err = -EINVAL; + goto done; + } + value = wrqu->rts.value; + } + + err = ipw2100_set_rts_threshold(priv, value); + + IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X\n", value); + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_rts(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED; + wrqu->rts.fixed = 1; /* no auto select */ + + /* If RTS is set to the default value, then it is disabled */ + wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0; + + IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X\n", wrqu->rts.value); + + return 0; +} + +static int ipw2100_wx_set_txpow(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err = 0, value; + + if (ipw_radio_kill_sw(priv, wrqu->txpower.disabled)) + return -EINPROGRESS; + + if (priv->ieee->iw_mode != IW_MODE_ADHOC) + return 0; + + if ((wrqu->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) + return -EINVAL; + + if (wrqu->txpower.fixed == 0) + value = IPW_TX_POWER_DEFAULT; + else { + if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM || + wrqu->txpower.value > IPW_TX_POWER_MAX_DBM) + return -EINVAL; + + value = wrqu->txpower.value; + } + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + err = ipw2100_set_tx_power(priv, value); + + IPW_DEBUG_WX("SET TX Power -> %d\n", value); + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_txpow(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + wrqu->txpower.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0; + + if (priv->tx_power == IPW_TX_POWER_DEFAULT) { + wrqu->txpower.fixed = 0; + wrqu->txpower.value = IPW_TX_POWER_MAX_DBM; + } else { + wrqu->txpower.fixed = 1; + wrqu->txpower.value = priv->tx_power; + } + + wrqu->txpower.flags = IW_TXPOW_DBM; + + IPW_DEBUG_WX("GET TX Power -> %d\n", wrqu->txpower.value); + + return 0; +} + +static int ipw2100_wx_set_frag(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + if (!wrqu->frag.fixed) + return -EINVAL; + + if (wrqu->frag.disabled) { + priv->frag_threshold |= FRAG_DISABLED; + priv->ieee->fts = DEFAULT_FTS; + } else { + if (wrqu->frag.value < MIN_FRAG_THRESHOLD || + wrqu->frag.value > MAX_FRAG_THRESHOLD) + return -EINVAL; + + priv->ieee->fts = wrqu->frag.value & ~0x1; + priv->frag_threshold = priv->ieee->fts; + } + + IPW_DEBUG_WX("SET Frag Threshold -> %d\n", priv->ieee->fts); + + return 0; +} + +static int ipw2100_wx_get_frag(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED; + wrqu->frag.fixed = 0; /* no auto select */ + wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0; + + IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value); + + return 0; +} + +static int ipw2100_wx_set_retry(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err = 0; + + if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled) + return -EINVAL; + + if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) + return 0; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (wrqu->retry.flags & IW_RETRY_SHORT) { + err = ipw2100_set_short_retry(priv, wrqu->retry.value); + IPW_DEBUG_WX("SET Short Retry Limit -> %d\n", + wrqu->retry.value); + goto done; + } + + if (wrqu->retry.flags & IW_RETRY_LONG) { + err = ipw2100_set_long_retry(priv, wrqu->retry.value); + IPW_DEBUG_WX("SET Long Retry Limit -> %d\n", + wrqu->retry.value); + goto done; + } + + err = ipw2100_set_short_retry(priv, wrqu->retry.value); + if (!err) + err = ipw2100_set_long_retry(priv, wrqu->retry.value); + + IPW_DEBUG_WX("SET Both Retry Limits -> %d\n", wrqu->retry.value); + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_retry(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + wrqu->retry.disabled = 0; /* can't be disabled */ + + if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) + return -EINVAL; + + if (wrqu->retry.flags & IW_RETRY_LONG) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; + wrqu->retry.value = priv->long_retry_limit; + } else { + wrqu->retry.flags = + (priv->short_retry_limit != + priv->long_retry_limit) ? + IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT; + + wrqu->retry.value = priv->short_retry_limit; + } + + IPW_DEBUG_WX("GET Retry -> %d\n", wrqu->retry.value); + + return 0; +} + +static int ipw2100_wx_set_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err = 0; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + IPW_DEBUG_WX("Initiating scan...\n"); + + priv->user_requested_scan = 1; + if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) { + IPW_DEBUG_WX("Start scan failed.\n"); + + /* TODO: Mark a scan as pending so when hardware initialized + * a scan starts */ + } + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + return libipw_wx_get_scan(priv->ieee, info, wrqu, extra); +} + +/* + * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c + */ +static int ipw2100_wx_set_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key) +{ + /* + * No check of STATUS_INITIALIZED required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + return libipw_wx_set_encode(priv->ieee, info, wrqu, key); +} + +static int ipw2100_wx_get_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + return libipw_wx_get_encode(priv->ieee, info, wrqu, key); +} + +static int ipw2100_wx_set_power(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err = 0; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (wrqu->power.disabled) { + priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); + err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM); + IPW_DEBUG_WX("SET Power Management Mode -> off\n"); + goto done; + } + + switch (wrqu->power.flags & IW_POWER_MODE) { + case IW_POWER_ON: /* If not specified */ + case IW_POWER_MODE: /* If set all mask */ + case IW_POWER_ALL_R: /* If explicitly state all */ + break; + default: /* Otherwise we don't support it */ + IPW_DEBUG_WX("SET PM Mode: %X not supported.\n", + wrqu->power.flags); + err = -EOPNOTSUPP; + goto done; + } + + /* If the user hasn't specified a power management mode yet, default + * to BATTERY */ + priv->power_mode = IPW_POWER_ENABLED | priv->power_mode; + err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode)); + + IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode); + + done: + mutex_unlock(&priv->action_mutex); + return err; + +} + +static int ipw2100_wx_get_power(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + if (!(priv->power_mode & IPW_POWER_ENABLED)) + wrqu->power.disabled = 1; + else { + wrqu->power.disabled = 0; + wrqu->power.flags = 0; + } + + IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode); + + return 0; +} + +/* + * WE-18 WPA support + */ + +/* SIOCSIWGENIE */ +static int ipw2100_wx_set_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + + struct ipw2100_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + u8 *buf; + + if (!ieee->wpa_enabled) + return -EOPNOTSUPP; + + if (wrqu->data.length > MAX_WPA_IE_LEN || + (wrqu->data.length && extra == NULL)) + return -EINVAL; + + if (wrqu->data.length) { + buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + kfree(ieee->wpa_ie); + ieee->wpa_ie = buf; + ieee->wpa_ie_len = wrqu->data.length; + } else { + kfree(ieee->wpa_ie); + ieee->wpa_ie = NULL; + ieee->wpa_ie_len = 0; + } + + ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len); + + return 0; +} + +/* SIOCGIWGENIE */ +static int ipw2100_wx_get_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + + if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) { + wrqu->data.length = 0; + return 0; + } + + if (wrqu->data.length < ieee->wpa_ie_len) + return -E2BIG; + + wrqu->data.length = ieee->wpa_ie_len; + memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len); + + return 0; +} + +/* SIOCSIWAUTH */ +static int ipw2100_wx_set_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + struct iw_param *param = &wrqu->param; + struct lib80211_crypt_data *crypt; + unsigned long flags; + int ret = 0; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + /* + * ipw2200 does not use these parameters + */ + break; + + case IW_AUTH_TKIP_COUNTERMEASURES: + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; + if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) + break; + + flags = crypt->ops->get_flags(crypt->priv); + + if (param->value) + flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; + else + flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; + + crypt->ops->set_flags(flags, crypt->priv); + + break; + + case IW_AUTH_DROP_UNENCRYPTED:{ + /* HACK: + * + * wpa_supplicant calls set_wpa_enabled when the driver + * is loaded and unloaded, regardless of if WPA is being + * used. No other calls are made which can be used to + * determine if encryption will be used or not prior to + * association being expected. If encryption is not being + * used, drop_unencrypted is set to false, else true -- we + * can use this to determine if the CAP_PRIVACY_ON bit should + * be set. + */ + struct libipw_security sec = { + .flags = SEC_ENABLED, + .enabled = param->value, + }; + priv->ieee->drop_unencrypted = param->value; + /* We only change SEC_LEVEL for open mode. Others + * are set by ipw_wpa_set_encryption. + */ + if (!param->value) { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_0; + } else { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; + } + if (priv->ieee->set_security) + priv->ieee->set_security(priv->ieee->dev, &sec); + break; + } + + case IW_AUTH_80211_AUTH_ALG: + ret = ipw2100_wpa_set_auth_algs(priv, param->value); + break; + + case IW_AUTH_WPA_ENABLED: + ret = ipw2100_wpa_enable(priv, param->value); + break; + + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + ieee->ieee802_1x = param->value; + break; + + //case IW_AUTH_ROAMING_CONTROL: + case IW_AUTH_PRIVACY_INVOKED: + ieee->privacy_invoked = param->value; + break; + + default: + return -EOPNOTSUPP; + } + return ret; +} + +/* SIOCGIWAUTH */ +static int ipw2100_wx_get_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + struct lib80211_crypt_data *crypt; + struct iw_param *param = &wrqu->param; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + /* + * wpa_supplicant will control these internally + */ + break; + + case IW_AUTH_TKIP_COUNTERMEASURES: + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; + if (!crypt || !crypt->ops->get_flags) { + IPW_DEBUG_WARNING("Can't get TKIP countermeasures: " + "crypt not set!\n"); + break; + } + + param->value = (crypt->ops->get_flags(crypt->priv) & + IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0; + + break; + + case IW_AUTH_DROP_UNENCRYPTED: + param->value = ieee->drop_unencrypted; + break; + + case IW_AUTH_80211_AUTH_ALG: + param->value = priv->ieee->sec.auth_mode; + break; + + case IW_AUTH_WPA_ENABLED: + param->value = ieee->wpa_enabled; + break; + + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + param->value = ieee->ieee802_1x; + break; + + case IW_AUTH_ROAMING_CONTROL: + case IW_AUTH_PRIVACY_INVOKED: + param->value = ieee->privacy_invoked; + break; + + default: + return -EOPNOTSUPP; + } + return 0; +} + +/* SIOCSIWENCODEEXT */ +static int ipw2100_wx_set_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra); +} + +/* SIOCGIWENCODEEXT */ +static int ipw2100_wx_get_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra); +} + +/* SIOCSIWMLME */ +static int ipw2100_wx_set_mlme(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + struct iw_mlme *mlme = (struct iw_mlme *)extra; + + switch (mlme->cmd) { + case IW_MLME_DEAUTH: + // silently ignore + break; + + case IW_MLME_DISASSOC: + ipw2100_disassociate_bssid(priv); + break; + + default: + return -EOPNOTSUPP; + } + return 0; +} + +/* + * + * IWPRIV handlers + * + */ +#ifdef CONFIG_IPW2100_MONITOR +static int ipw2100_wx_set_promisc(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int *parms = (int *)extra; + int enable = (parms[0] > 0); + int err = 0; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (enable) { + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + err = ipw2100_set_channel(priv, parms[1], 0); + goto done; + } + priv->channel = parms[1]; + err = ipw2100_switch_mode(priv, IW_MODE_MONITOR); + } else { + if (priv->ieee->iw_mode == IW_MODE_MONITOR) + err = ipw2100_switch_mode(priv, priv->last_mode); + } + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_reset(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + if (priv->status & STATUS_INITIALIZED) + schedule_reset(priv); + return 0; +} + +#endif + +static int ipw2100_wx_set_powermode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err = 0, mode = *(int *)extra; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if ((mode < 0) || (mode > POWER_MODES)) + mode = IPW_POWER_AUTO; + + if (IPW_POWER_LEVEL(priv->power_mode) != mode) + err = ipw2100_set_power_mode(priv, mode); + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +#define MAX_POWER_STRING 80 +static int ipw2100_wx_get_powermode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + int level = IPW_POWER_LEVEL(priv->power_mode); + s32 timeout, period; + + if (!(priv->power_mode & IPW_POWER_ENABLED)) { + snprintf(extra, MAX_POWER_STRING, + "Power save level: %d (Off)", level); + } else { + switch (level) { + case IPW_POWER_MODE_CAM: + snprintf(extra, MAX_POWER_STRING, + "Power save level: %d (None)", level); + break; + case IPW_POWER_AUTO: + snprintf(extra, MAX_POWER_STRING, + "Power save level: %d (Auto)", level); + break; + default: + timeout = timeout_duration[level - 1] / 1000; + period = period_duration[level - 1] / 1000; + snprintf(extra, MAX_POWER_STRING, + "Power save level: %d " + "(Timeout %dms, Period %dms)", + level, timeout, period); + } + } + + wrqu->data.length = strlen(extra) + 1; + + return 0; +} + +static int ipw2100_wx_set_preamble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err, mode = *(int *)extra; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (mode == 1) + priv->config |= CFG_LONG_PREAMBLE; + else if (mode == 0) + priv->config &= ~CFG_LONG_PREAMBLE; + else { + err = -EINVAL; + goto done; + } + + err = ipw2100_system_config(priv, 0); + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_preamble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + if (priv->config & CFG_LONG_PREAMBLE) + snprintf(wrqu->name, IFNAMSIZ, "long (1)"); + else + snprintf(wrqu->name, IFNAMSIZ, "auto (0)"); + + return 0; +} + +#ifdef CONFIG_IPW2100_MONITOR +static int ipw2100_wx_set_crc_check(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw2100_priv *priv = libipw_priv(dev); + int err, mode = *(int *)extra; + + mutex_lock(&priv->action_mutex); + if (!(priv->status & STATUS_INITIALIZED)) { + err = -EIO; + goto done; + } + + if (mode == 1) + priv->config |= CFG_CRC_CHECK; + else if (mode == 0) + priv->config &= ~CFG_CRC_CHECK; + else { + err = -EINVAL; + goto done; + } + err = 0; + + done: + mutex_unlock(&priv->action_mutex); + return err; +} + +static int ipw2100_wx_get_crc_check(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* + * This can be called at any time. No action lock required + */ + + struct ipw2100_priv *priv = libipw_priv(dev); + + if (priv->config & CFG_CRC_CHECK) + snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)"); + else + snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)"); + + return 0; +} +#endif /* CONFIG_IPW2100_MONITOR */ + +static iw_handler ipw2100_wx_handlers[] = { + IW_HANDLER(SIOCGIWNAME, ipw2100_wx_get_name), + IW_HANDLER(SIOCSIWFREQ, ipw2100_wx_set_freq), + IW_HANDLER(SIOCGIWFREQ, ipw2100_wx_get_freq), + IW_HANDLER(SIOCSIWMODE, ipw2100_wx_set_mode), + IW_HANDLER(SIOCGIWMODE, ipw2100_wx_get_mode), + IW_HANDLER(SIOCGIWRANGE, ipw2100_wx_get_range), + IW_HANDLER(SIOCSIWAP, ipw2100_wx_set_wap), + IW_HANDLER(SIOCGIWAP, ipw2100_wx_get_wap), + IW_HANDLER(SIOCSIWMLME, ipw2100_wx_set_mlme), + IW_HANDLER(SIOCSIWSCAN, ipw2100_wx_set_scan), + IW_HANDLER(SIOCGIWSCAN, ipw2100_wx_get_scan), + IW_HANDLER(SIOCSIWESSID, ipw2100_wx_set_essid), + IW_HANDLER(SIOCGIWESSID, ipw2100_wx_get_essid), + IW_HANDLER(SIOCSIWNICKN, ipw2100_wx_set_nick), + IW_HANDLER(SIOCGIWNICKN, ipw2100_wx_get_nick), + IW_HANDLER(SIOCSIWRATE, ipw2100_wx_set_rate), + IW_HANDLER(SIOCGIWRATE, ipw2100_wx_get_rate), + IW_HANDLER(SIOCSIWRTS, ipw2100_wx_set_rts), + IW_HANDLER(SIOCGIWRTS, ipw2100_wx_get_rts), + IW_HANDLER(SIOCSIWFRAG, ipw2100_wx_set_frag), + IW_HANDLER(SIOCGIWFRAG, ipw2100_wx_get_frag), + IW_HANDLER(SIOCSIWTXPOW, ipw2100_wx_set_txpow), + IW_HANDLER(SIOCGIWTXPOW, ipw2100_wx_get_txpow), + IW_HANDLER(SIOCSIWRETRY, ipw2100_wx_set_retry), + IW_HANDLER(SIOCGIWRETRY, ipw2100_wx_get_retry), + IW_HANDLER(SIOCSIWENCODE, ipw2100_wx_set_encode), + IW_HANDLER(SIOCGIWENCODE, ipw2100_wx_get_encode), + IW_HANDLER(SIOCSIWPOWER, ipw2100_wx_set_power), + IW_HANDLER(SIOCGIWPOWER, ipw2100_wx_get_power), + IW_HANDLER(SIOCSIWGENIE, ipw2100_wx_set_genie), + IW_HANDLER(SIOCGIWGENIE, ipw2100_wx_get_genie), + IW_HANDLER(SIOCSIWAUTH, ipw2100_wx_set_auth), + IW_HANDLER(SIOCGIWAUTH, ipw2100_wx_get_auth), + IW_HANDLER(SIOCSIWENCODEEXT, ipw2100_wx_set_encodeext), + IW_HANDLER(SIOCGIWENCODEEXT, ipw2100_wx_get_encodeext), +}; + +#define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV +#define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1 +#define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2 +#define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3 +#define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4 +#define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5 +#define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6 +#define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7 + +static const struct iw_priv_args ipw2100_private_args[] = { + +#ifdef CONFIG_IPW2100_MONITOR + { + IPW2100_PRIV_SET_MONITOR, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"}, + { + IPW2100_PRIV_RESET, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"}, +#endif /* CONFIG_IPW2100_MONITOR */ + + { + IPW2100_PRIV_SET_POWER, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"}, + { + IPW2100_PRIV_GET_POWER, + 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING, + "get_power"}, + { + IPW2100_PRIV_SET_LONGPREAMBLE, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"}, + { + IPW2100_PRIV_GET_LONGPREAMBLE, + 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"}, +#ifdef CONFIG_IPW2100_MONITOR + { + IPW2100_PRIV_SET_CRC_CHECK, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"}, + { + IPW2100_PRIV_GET_CRC_CHECK, + 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"}, +#endif /* CONFIG_IPW2100_MONITOR */ +}; + +static iw_handler ipw2100_private_handler[] = { +#ifdef CONFIG_IPW2100_MONITOR + ipw2100_wx_set_promisc, + ipw2100_wx_reset, +#else /* CONFIG_IPW2100_MONITOR */ + NULL, + NULL, +#endif /* CONFIG_IPW2100_MONITOR */ + ipw2100_wx_set_powermode, + ipw2100_wx_get_powermode, + ipw2100_wx_set_preamble, + ipw2100_wx_get_preamble, +#ifdef CONFIG_IPW2100_MONITOR + ipw2100_wx_set_crc_check, + ipw2100_wx_get_crc_check, +#else /* CONFIG_IPW2100_MONITOR */ + NULL, + NULL, +#endif /* CONFIG_IPW2100_MONITOR */ +}; + +/* + * Get wireless statistics. + * Called by /proc/net/wireless + * Also called by SIOCGIWSTATS + */ +static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev) +{ + enum { + POOR = 30, + FAIR = 60, + GOOD = 80, + VERY_GOOD = 90, + EXCELLENT = 95, + PERFECT = 100 + }; + int rssi_qual; + int tx_qual; + int beacon_qual; + int quality; + + struct ipw2100_priv *priv = libipw_priv(dev); + struct iw_statistics *wstats; + u32 rssi, tx_retries, missed_beacons, tx_failures; + u32 ord_len = sizeof(u32); + + if (!priv) + return (struct iw_statistics *)NULL; + + wstats = &priv->wstats; + + /* if hw is disabled, then ipw2100_get_ordinal() can't be called. + * ipw2100_wx_wireless_stats seems to be called before fw is + * initialized. STATUS_ASSOCIATED will only be set if the hw is up + * and associated; if not associcated, the values are all meaningless + * anyway, so set them all to NULL and INVALID */ + if (!(priv->status & STATUS_ASSOCIATED)) { + wstats->miss.beacon = 0; + wstats->discard.retries = 0; + wstats->qual.qual = 0; + wstats->qual.level = 0; + wstats->qual.noise = 0; + wstats->qual.updated = 7; + wstats->qual.updated |= IW_QUAL_NOISE_INVALID | + IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; + return wstats; + } + + if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS, + &missed_beacons, &ord_len)) + goto fail_get_ordinal; + + /* If we don't have a connection the quality and level is 0 */ + if (!(priv->status & STATUS_ASSOCIATED)) { + wstats->qual.qual = 0; + wstats->qual.level = 0; + } else { + if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR, + &rssi, &ord_len)) + goto fail_get_ordinal; + wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM; + if (rssi < 10) + rssi_qual = rssi * POOR / 10; + else if (rssi < 15) + rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR; + else if (rssi < 20) + rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR; + else if (rssi < 30) + rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) / + 10 + GOOD; + else + rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) / + 10 + VERY_GOOD; + + if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES, + &tx_retries, &ord_len)) + goto fail_get_ordinal; + + if (tx_retries > 75) + tx_qual = (90 - tx_retries) * POOR / 15; + else if (tx_retries > 70) + tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR; + else if (tx_retries > 65) + tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR; + else if (tx_retries > 50) + tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) / + 15 + GOOD; + else + tx_qual = (50 - tx_retries) * + (PERFECT - VERY_GOOD) / 50 + VERY_GOOD; + + if (missed_beacons > 50) + beacon_qual = (60 - missed_beacons) * POOR / 10; + else if (missed_beacons > 40) + beacon_qual = (50 - missed_beacons) * (FAIR - POOR) / + 10 + POOR; + else if (missed_beacons > 32) + beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) / + 18 + FAIR; + else if (missed_beacons > 20) + beacon_qual = (32 - missed_beacons) * + (VERY_GOOD - GOOD) / 20 + GOOD; + else + beacon_qual = (20 - missed_beacons) * + (PERFECT - VERY_GOOD) / 20 + VERY_GOOD; + + quality = min(tx_qual, rssi_qual); + quality = min(beacon_qual, quality); + +#ifdef CONFIG_IPW2100_DEBUG + if (beacon_qual == quality) + IPW_DEBUG_WX("Quality clamped by Missed Beacons\n"); + else if (tx_qual == quality) + IPW_DEBUG_WX("Quality clamped by Tx Retries\n"); + else if (quality != 100) + IPW_DEBUG_WX("Quality clamped by Signal Strength\n"); + else + IPW_DEBUG_WX("Quality not clamped.\n"); +#endif + + wstats->qual.qual = quality; + wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM; + } + + wstats->qual.noise = 0; + wstats->qual.updated = 7; + wstats->qual.updated |= IW_QUAL_NOISE_INVALID; + + /* FIXME: this is percent and not a # */ + wstats->miss.beacon = missed_beacons; + + if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES, + &tx_failures, &ord_len)) + goto fail_get_ordinal; + wstats->discard.retries = tx_failures; + + return wstats; + + fail_get_ordinal: + IPW_DEBUG_WX("failed querying ordinals.\n"); + + return (struct iw_statistics *)NULL; +} + +static const struct iw_handler_def ipw2100_wx_handler_def = { + .standard = ipw2100_wx_handlers, + .num_standard = ARRAY_SIZE(ipw2100_wx_handlers), + .num_private = ARRAY_SIZE(ipw2100_private_handler), + .num_private_args = ARRAY_SIZE(ipw2100_private_args), + .private = (iw_handler *) ipw2100_private_handler, + .private_args = (struct iw_priv_args *)ipw2100_private_args, + .get_wireless_stats = ipw2100_wx_wireless_stats, +}; + +static void ipw2100_wx_event_work(struct work_struct *work) +{ + struct ipw2100_priv *priv = + container_of(work, struct ipw2100_priv, wx_event_work.work); + union iwreq_data wrqu; + unsigned int len = ETH_ALEN; + + if (priv->status & STATUS_STOPPING) + return; + + mutex_lock(&priv->action_mutex); + + IPW_DEBUG_WX("enter\n"); + + mutex_unlock(&priv->action_mutex); + + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + + /* Fetch BSSID from the hardware */ + if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) || + priv->status & STATUS_RF_KILL_MASK || + ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, + &priv->bssid, &len)) { + eth_zero_addr(wrqu.ap_addr.sa_data); + } else { + /* We now have the BSSID, so can finish setting to the full + * associated state */ + memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN); + memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN); + priv->status &= ~STATUS_ASSOCIATING; + priv->status |= STATUS_ASSOCIATED; + netif_carrier_on(priv->net_dev); + netif_wake_queue(priv->net_dev); + } + + if (!(priv->status & STATUS_ASSOCIATED)) { + IPW_DEBUG_WX("Configuring ESSID\n"); + mutex_lock(&priv->action_mutex); + /* This is a disassociation event, so kick the firmware to + * look for another AP */ + if (priv->config & CFG_STATIC_ESSID) + ipw2100_set_essid(priv, priv->essid, priv->essid_len, + 0); + else + ipw2100_set_essid(priv, NULL, 0, 0); + mutex_unlock(&priv->action_mutex); + } + + wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); +} + +#define IPW2100_FW_MAJOR_VERSION 1 +#define IPW2100_FW_MINOR_VERSION 3 + +#define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8) +#define IPW2100_FW_MAJOR(x) (x & 0xff) + +#define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \ + IPW2100_FW_MAJOR_VERSION) + +#define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \ +"." __stringify(IPW2100_FW_MINOR_VERSION) + +#define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw" + +/* + +BINARY FIRMWARE HEADER FORMAT + +offset length desc +0 2 version +2 2 mode == 0:BSS,1:IBSS,2:MONITOR +4 4 fw_len +8 4 uc_len +C fw_len firmware data +12 + fw_len uc_len microcode data + +*/ + +struct ipw2100_fw_header { + short version; + short mode; + unsigned int fw_size; + unsigned int uc_size; +} __packed; + +static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw) +{ + struct ipw2100_fw_header *h = + (struct ipw2100_fw_header *)fw->fw_entry->data; + + if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) { + printk(KERN_WARNING DRV_NAME ": Firmware image not compatible " + "(detected version id of %u). " + "See Documentation/networking/device_drivers/wifi/intel/ipw2100.rst\n", + h->version); + return 1; + } + + fw->version = h->version; + fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header); + fw->fw.size = h->fw_size; + fw->uc.data = fw->fw.data + h->fw_size; + fw->uc.size = h->uc_size; + + return 0; +} + +static int ipw2100_get_firmware(struct ipw2100_priv *priv, + struct ipw2100_fw *fw) +{ + char *fw_name; + int rc; + + IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n", + priv->net_dev->name); + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + fw_name = IPW2100_FW_NAME("-i"); + break; +#ifdef CONFIG_IPW2100_MONITOR + case IW_MODE_MONITOR: + fw_name = IPW2100_FW_NAME("-p"); + break; +#endif + case IW_MODE_INFRA: + default: + fw_name = IPW2100_FW_NAME(""); + break; + } + + rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev); + + if (rc < 0) { + printk(KERN_ERR DRV_NAME ": " + "%s: Firmware '%s' not available or load failed.\n", + priv->net_dev->name, fw_name); + return rc; + } + IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data, + fw->fw_entry->size); + + ipw2100_mod_firmware_load(fw); + + return 0; +} + +MODULE_FIRMWARE(IPW2100_FW_NAME("-i")); +#ifdef CONFIG_IPW2100_MONITOR +MODULE_FIRMWARE(IPW2100_FW_NAME("-p")); +#endif +MODULE_FIRMWARE(IPW2100_FW_NAME("")); + +static void ipw2100_release_firmware(struct ipw2100_priv *priv, + struct ipw2100_fw *fw) +{ + fw->version = 0; + release_firmware(fw->fw_entry); + fw->fw_entry = NULL; +} + +static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf, + size_t max) +{ + char ver[MAX_FW_VERSION_LEN]; + u32 len = MAX_FW_VERSION_LEN; + u32 tmp; + int i; + /* firmware version is an ascii string (max len of 14) */ + if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len)) + return -EIO; + tmp = max; + if (len >= max) + len = max - 1; + for (i = 0; i < len; i++) + buf[i] = ver[i]; + buf[i] = '\0'; + return tmp; +} + +static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf, + size_t max) +{ + u32 ver; + u32 len = sizeof(ver); + /* microcode version is a 32 bit integer */ + if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len)) + return -EIO; + return snprintf(buf, max, "%08X", ver); +} + +/* + * On exit, the firmware will have been freed from the fw list + */ +static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw) +{ + /* firmware is constructed of N contiguous entries, each entry is + * structured as: + * + * offset sie desc + * 0 4 address to write to + * 4 2 length of data run + * 6 length data + */ + unsigned int addr; + unsigned short len; + + const unsigned char *firmware_data = fw->fw.data; + unsigned int firmware_data_left = fw->fw.size; + + while (firmware_data_left > 0) { + addr = *(u32 *) (firmware_data); + firmware_data += 4; + firmware_data_left -= 4; + + len = *(u16 *) (firmware_data); + firmware_data += 2; + firmware_data_left -= 2; + + if (len > 32) { + printk(KERN_ERR DRV_NAME ": " + "Invalid firmware run-length of %d bytes\n", + len); + return -EINVAL; + } + + write_nic_memory(priv->net_dev, addr, len, firmware_data); + firmware_data += len; + firmware_data_left -= len; + } + + return 0; +} + +struct symbol_alive_response { + u8 cmd_id; + u8 seq_num; + u8 ucode_rev; + u8 eeprom_valid; + u16 valid_flags; + u8 IEEE_addr[6]; + u16 flags; + u16 pcb_rev; + u16 clock_settle_time; // 1us LSB + u16 powerup_settle_time; // 1us LSB + u16 hop_settle_time; // 1us LSB + u8 date[3]; // month, day, year + u8 time[2]; // hours, minutes + u8 ucode_valid; +}; + +static int ipw2100_ucode_download(struct ipw2100_priv *priv, + struct ipw2100_fw *fw) +{ + struct net_device *dev = priv->net_dev; + const unsigned char *microcode_data = fw->uc.data; + unsigned int microcode_data_left = fw->uc.size; + void __iomem *reg = priv->ioaddr; + + struct symbol_alive_response response; + int i, j; + u8 data; + + /* Symbol control */ + write_nic_word(dev, IPW2100_CONTROL_REG, 0x703); + readl(reg); + write_nic_word(dev, IPW2100_CONTROL_REG, 0x707); + readl(reg); + + /* HW config */ + write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */ + readl(reg); + write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */ + readl(reg); + + /* EN_CS_ACCESS bit to reset control store pointer */ + write_nic_byte(dev, 0x210000, 0x40); + readl(reg); + write_nic_byte(dev, 0x210000, 0x0); + readl(reg); + write_nic_byte(dev, 0x210000, 0x40); + readl(reg); + + /* copy microcode from buffer into Symbol */ + + while (microcode_data_left > 0) { + write_nic_byte(dev, 0x210010, *microcode_data++); + write_nic_byte(dev, 0x210010, *microcode_data++); + microcode_data_left -= 2; + } + + /* EN_CS_ACCESS bit to reset the control store pointer */ + write_nic_byte(dev, 0x210000, 0x0); + readl(reg); + + /* Enable System (Reg 0) + * first enable causes garbage in RX FIFO */ + write_nic_byte(dev, 0x210000, 0x0); + readl(reg); + write_nic_byte(dev, 0x210000, 0x80); + readl(reg); + + /* Reset External Baseband Reg */ + write_nic_word(dev, IPW2100_CONTROL_REG, 0x703); + readl(reg); + write_nic_word(dev, IPW2100_CONTROL_REG, 0x707); + readl(reg); + + /* HW Config (Reg 5) */ + write_nic_byte(dev, 0x210014, 0x72); // fifo width =16 + readl(reg); + write_nic_byte(dev, 0x210014, 0x72); // fifo width =16 + readl(reg); + + /* Enable System (Reg 0) + * second enable should be OK */ + write_nic_byte(dev, 0x210000, 0x00); // clear enable system + readl(reg); + write_nic_byte(dev, 0x210000, 0x80); // set enable system + + /* check Symbol is enabled - upped this from 5 as it wasn't always + * catching the update */ + for (i = 0; i < 10; i++) { + udelay(10); + + /* check Dino is enabled bit */ + read_nic_byte(dev, 0x210000, &data); + if (data & 0x1) + break; + } + + if (i == 10) { + printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n", + dev->name); + return -EIO; + } + + /* Get Symbol alive response */ + for (i = 0; i < 30; i++) { + /* Read alive response structure */ + for (j = 0; + j < (sizeof(struct symbol_alive_response) >> 1); j++) + read_nic_word(dev, 0x210004, ((u16 *) & response) + j); + + if ((response.cmd_id == 1) && (response.ucode_valid == 0x1)) + break; + udelay(10); + } + + if (i == 30) { + printk(KERN_ERR DRV_NAME + ": %s: No response from Symbol - hw not alive\n", + dev->name); + printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response)); + return -EIO; + } + + return 0; +} diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.h b/drivers/net/wireless/intel/ipw2x00/ipw2100.h new file mode 100644 index 000000000..b34085ade --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.h @@ -0,0 +1,1142 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/****************************************************************************** + + Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved. + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ +#ifndef _IPW2100_H +#define _IPW2100_H + +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/list.h> +#include <linux/delay.h> +#include <linux/skbuff.h> +#include <asm/io.h> +#include <linux/socket.h> +#include <linux/if_arp.h> +#include <linux/wireless.h> +#include <net/iw_handler.h> // new driver API + +#ifdef CONFIG_IPW2100_MONITOR +#include <net/ieee80211_radiotap.h> +#endif + +#include <linux/workqueue.h> +#include <linux/mutex.h> + +#include "libipw.h" + +struct ipw2100_priv; +struct ipw2100_tx_packet; +struct ipw2100_rx_packet; + +#define IPW_DL_UNINIT 0x80000000 +#define IPW_DL_NONE 0x00000000 +#define IPW_DL_ALL 0x7FFFFFFF + +/* + * To use the debug system; + * + * If you are defining a new debug classification, simply add it to the #define + * list here in the form of: + * + * #define IPW_DL_xxxx VALUE + * + * shifting value to the left one bit from the previous entry. xxxx should be + * the name of the classification (for example, WEP) + * + * You then need to either add a IPW2100_xxxx_DEBUG() macro definition for your + * classification, or use IPW_DEBUG(IPW_DL_xxxx, ...) whenever you want + * to send output to that classification. + * + * To add your debug level to the list of levels seen when you perform + * + * % cat /proc/net/ipw2100/debug_level + * + * you simply need to add your entry to the ipw2100_debug_levels array. + * + * If you do not see debug_level in /proc/net/ipw2100 then you do not have + * CONFIG_IPW2100_DEBUG defined in your kernel configuration + * + */ + +#define IPW_DL_ERROR (1<<0) +#define IPW_DL_WARNING (1<<1) +#define IPW_DL_INFO (1<<2) +#define IPW_DL_WX (1<<3) +#define IPW_DL_HC (1<<5) +#define IPW_DL_STATE (1<<6) + +#define IPW_DL_NOTIF (1<<10) +#define IPW_DL_SCAN (1<<11) +#define IPW_DL_ASSOC (1<<12) +#define IPW_DL_DROP (1<<13) + +#define IPW_DL_IOCTL (1<<14) +#define IPW_DL_RF_KILL (1<<17) + +#define IPW_DL_MANAGE (1<<15) +#define IPW_DL_FW (1<<16) + +#define IPW_DL_FRAG (1<<21) +#define IPW_DL_WEP (1<<22) +#define IPW_DL_TX (1<<23) +#define IPW_DL_RX (1<<24) +#define IPW_DL_ISR (1<<25) +#define IPW_DL_IO (1<<26) +#define IPW_DL_TRACE (1<<28) + +#define IPW_DEBUG_ERROR(f, a...) printk(KERN_ERR DRV_NAME ": " f, ## a) +#define IPW_DEBUG_WARNING(f, a...) printk(KERN_WARNING DRV_NAME ": " f, ## a) +#define IPW_DEBUG_INFO(f...) IPW_DEBUG(IPW_DL_INFO, ## f) +#define IPW_DEBUG_WX(f...) IPW_DEBUG(IPW_DL_WX, ## f) +#define IPW_DEBUG_SCAN(f...) IPW_DEBUG(IPW_DL_SCAN, ## f) +#define IPW_DEBUG_NOTIF(f...) IPW_DEBUG(IPW_DL_NOTIF, ## f) +#define IPW_DEBUG_TRACE(f...) IPW_DEBUG(IPW_DL_TRACE, ## f) +#define IPW_DEBUG_RX(f...) IPW_DEBUG(IPW_DL_RX, ## f) +#define IPW_DEBUG_TX(f...) IPW_DEBUG(IPW_DL_TX, ## f) +#define IPW_DEBUG_ISR(f...) IPW_DEBUG(IPW_DL_ISR, ## f) +#define IPW_DEBUG_MANAGEMENT(f...) IPW_DEBUG(IPW_DL_MANAGE, ## f) +#define IPW_DEBUG_WEP(f...) IPW_DEBUG(IPW_DL_WEP, ## f) +#define IPW_DEBUG_HC(f...) IPW_DEBUG(IPW_DL_HC, ## f) +#define IPW_DEBUG_FRAG(f...) IPW_DEBUG(IPW_DL_FRAG, ## f) +#define IPW_DEBUG_FW(f...) IPW_DEBUG(IPW_DL_FW, ## f) +#define IPW_DEBUG_RF_KILL(f...) IPW_DEBUG(IPW_DL_RF_KILL, ## f) +#define IPW_DEBUG_DROP(f...) IPW_DEBUG(IPW_DL_DROP, ## f) +#define IPW_DEBUG_IO(f...) IPW_DEBUG(IPW_DL_IO, ## f) +#define IPW_DEBUG_IOCTL(f...) IPW_DEBUG(IPW_DL_IOCTL, ## f) +#define IPW_DEBUG_STATE(f, a...) IPW_DEBUG(IPW_DL_STATE | IPW_DL_ASSOC | IPW_DL_INFO, f, ## a) +#define IPW_DEBUG_ASSOC(f, a...) IPW_DEBUG(IPW_DL_ASSOC | IPW_DL_INFO, f, ## a) + +enum { + IPW_HW_STATE_DISABLED = 1, + IPW_HW_STATE_ENABLED = 0 +}; + +extern const char *port_type_str[]; +extern const char *band_str[]; + +#define NUMBER_OF_BD_PER_COMMAND_PACKET 1 +#define NUMBER_OF_BD_PER_DATA_PACKET 2 + +#define IPW_MAX_BDS 6 +#define NUMBER_OF_OVERHEAD_BDS_PER_PACKETR 2 +#define NUMBER_OF_BDS_TO_LEAVE_FOR_COMMANDS 1 + +#define REQUIRED_SPACE_IN_RING_FOR_COMMAND_PACKET \ + (IPW_BD_QUEUE_W_R_MIN_SPARE + NUMBER_OF_BD_PER_COMMAND_PACKET) + +struct bd_status { + union { + struct { + u8 nlf:1, txType:2, intEnabled:1, reserved:4; + } fields; + u8 field; + } info; +} __packed; + +struct ipw2100_bd { + u32 host_addr; + u32 buf_length; + struct bd_status status; + /* number of fragments for frame (should be set only for + * 1st TBD) */ + u8 num_fragments; + u8 reserved[6]; +} __packed; + +#define IPW_BD_QUEUE_LENGTH(n) (1<<n) +#define IPW_BD_ALIGNMENT(L) (L*sizeof(struct ipw2100_bd)) + +#define IPW_BD_STATUS_TX_FRAME_802_3 0x00 +#define IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT 0x01 +#define IPW_BD_STATUS_TX_FRAME_COMMAND 0x02 +#define IPW_BD_STATUS_TX_FRAME_802_11 0x04 +#define IPW_BD_STATUS_TX_INTERRUPT_ENABLE 0x08 + +struct ipw2100_bd_queue { + /* driver (virtual) pointer to queue */ + struct ipw2100_bd *drv; + + /* firmware (physical) pointer to queue */ + dma_addr_t nic; + + /* Length of phy memory allocated for BDs */ + u32 size; + + /* Number of BDs in queue (and in array) */ + u32 entries; + + /* Number of available BDs (invalid for NIC BDs) */ + u32 available; + + /* Offset of oldest used BD in array (next one to + * check for completion) */ + u32 oldest; + + /* Offset of next available (unused) BD */ + u32 next; +}; + +#define RX_QUEUE_LENGTH 256 +#define TX_QUEUE_LENGTH 256 +#define HW_QUEUE_LENGTH 256 + +#define TX_PENDED_QUEUE_LENGTH (TX_QUEUE_LENGTH / NUMBER_OF_BD_PER_DATA_PACKET) + +#define STATUS_TYPE_MASK 0x0000000f +#define COMMAND_STATUS_VAL 0 +#define STATUS_CHANGE_VAL 1 +#define P80211_DATA_VAL 2 +#define P8023_DATA_VAL 3 +#define HOST_NOTIFICATION_VAL 4 + +#define IPW2100_RSSI_TO_DBM (-98) + +struct ipw2100_status { + u32 frame_size; + u16 status_fields; + u8 flags; +#define IPW_STATUS_FLAG_DECRYPTED (1<<0) +#define IPW_STATUS_FLAG_WEP_ENCRYPTED (1<<1) +#define IPW_STATUS_FLAG_CRC_ERROR (1<<2) + u8 rssi; +} __packed; + +struct ipw2100_status_queue { + /* driver (virtual) pointer to queue */ + struct ipw2100_status *drv; + + /* firmware (physical) pointer to queue */ + dma_addr_t nic; + + /* Length of phy memory allocated for BDs */ + u32 size; +}; + +#define HOST_COMMAND_PARAMS_REG_LEN 100 +#define CMD_STATUS_PARAMS_REG_LEN 3 + +#define IPW_WPA_CAPABILITIES 0x1 +#define IPW_WPA_LISTENINTERVAL 0x2 +#define IPW_WPA_AP_ADDRESS 0x4 + +#define IPW_MAX_VAR_IE_LEN ((HOST_COMMAND_PARAMS_REG_LEN - 4) * sizeof(u32)) + +struct ipw2100_wpa_assoc_frame { + u16 fixed_ie_mask; + struct { + u16 capab_info; + u16 listen_interval; + u8 current_ap[ETH_ALEN]; + } fixed_ies; + u32 var_ie_len; + u8 var_ie[IPW_MAX_VAR_IE_LEN]; +}; + +#define IPW_BSS 1 +#define IPW_MONITOR 2 +#define IPW_IBSS 3 + +/** + * @struct _tx_cmd - HWCommand + * @brief H/W command structure. + */ +struct ipw2100_cmd_header { + u32 host_command_reg; + u32 host_command_reg1; + u32 sequence; + u32 host_command_len_reg; + u32 host_command_params_reg[HOST_COMMAND_PARAMS_REG_LEN]; + u32 cmd_status_reg; + u32 cmd_status_params_reg[CMD_STATUS_PARAMS_REG_LEN]; + u32 rxq_base_ptr; + u32 rxq_next_ptr; + u32 rxq_host_ptr; + u32 txq_base_ptr; + u32 txq_next_ptr; + u32 txq_host_ptr; + u32 tx_status_reg; + u32 reserved; + u32 status_change_reg; + u32 reserved1[3]; + u32 *ordinal1_ptr; + u32 *ordinal2_ptr; +} __packed; + +struct ipw2100_data_header { + u32 host_command_reg; + u32 host_command_reg1; + u8 encrypted; // BOOLEAN in win! TRUE if frame is enc by driver + u8 needs_encryption; // BOOLEAN in win! TRUE if frma need to be enc in NIC + u8 wep_index; // 0 no key, 1-4 key index, 0xff immediate key + u8 key_size; // 0 no imm key, 0x5 64bit encr, 0xd 128bit encr, 0x10 128bit encr and 128bit IV + u8 key[16]; + u8 reserved[10]; // f/w reserved + u8 src_addr[ETH_ALEN]; + u8 dst_addr[ETH_ALEN]; + u16 fragment_size; +} __packed; + +/* Host command data structure */ +struct host_command { + u32 host_command; // COMMAND ID + u32 host_command1; // COMMAND ID + u32 host_command_sequence; // UNIQUE COMMAND NUMBER (ID) + u32 host_command_length; // LENGTH + u32 host_command_parameters[HOST_COMMAND_PARAMS_REG_LEN]; // COMMAND PARAMETERS +} __packed; + +typedef enum { + POWER_ON_RESET, + EXIT_POWER_DOWN_RESET, + SW_RESET, + EEPROM_RW, + SW_RE_INIT +} ipw2100_reset_event; + +enum { + COMMAND = 0xCAFE, + DATA, + RX +}; + +struct ipw2100_tx_packet { + int type; + int index; + union { + struct { /* COMMAND */ + struct ipw2100_cmd_header *cmd; + dma_addr_t cmd_phys; + } c_struct; + struct { /* DATA */ + struct ipw2100_data_header *data; + dma_addr_t data_phys; + struct libipw_txb *txb; + } d_struct; + } info; + int jiffy_start; + + struct list_head list; +}; + +struct ipw2100_rx_packet { + struct ipw2100_rx *rxp; + dma_addr_t dma_addr; + int jiffy_start; + struct sk_buff *skb; + struct list_head list; +}; + +#define FRAG_DISABLED (1<<31) +#define RTS_DISABLED (1<<31) +#define MAX_RTS_THRESHOLD 2304U +#define MIN_RTS_THRESHOLD 1U +#define DEFAULT_RTS_THRESHOLD 1000U + +#define DEFAULT_BEACON_INTERVAL 100U +#define DEFAULT_SHORT_RETRY_LIMIT 7U +#define DEFAULT_LONG_RETRY_LIMIT 4U + +struct ipw2100_ordinals { + u32 table1_addr; + u32 table2_addr; + u32 table1_size; + u32 table2_size; +}; + +/* Host Notification header */ +struct ipw2100_notification { + u32 hnhdr_subtype; /* type of host notification */ + u32 hnhdr_size; /* size in bytes of data + or number of entries, if table. + Does NOT include header */ +} __packed; + +#define MAX_KEY_SIZE 16 +#define MAX_KEYS 8 + +#define IPW2100_WEP_ENABLE (1<<1) +#define IPW2100_WEP_DROP_CLEAR (1<<2) + +#define IPW_NONE_CIPHER (1<<0) +#define IPW_WEP40_CIPHER (1<<1) +#define IPW_TKIP_CIPHER (1<<2) +#define IPW_CCMP_CIPHER (1<<4) +#define IPW_WEP104_CIPHER (1<<5) +#define IPW_CKIP_CIPHER (1<<6) + +#define IPW_AUTH_OPEN 0 +#define IPW_AUTH_SHARED 1 +#define IPW_AUTH_LEAP 2 +#define IPW_AUTH_LEAP_CISCO_ID 0x80 + +struct statistic { + int value; + int hi; + int lo; +}; + +#define INIT_STAT(x) do { \ + (x)->value = (x)->hi = 0; \ + (x)->lo = 0x7fffffff; \ +} while (0) +#define SET_STAT(x,y) do { \ + (x)->value = y; \ + if ((x)->value > (x)->hi) (x)->hi = (x)->value; \ + if ((x)->value < (x)->lo) (x)->lo = (x)->value; \ +} while (0) +#define INC_STAT(x) do { if (++(x)->value > (x)->hi) (x)->hi = (x)->value; } \ +while (0) +#define DEC_STAT(x) do { if (--(x)->value < (x)->lo) (x)->lo = (x)->value; } \ +while (0) + +#define IPW2100_ERROR_QUEUE 5 + +/* Power management code: enable or disable? */ +enum { +#ifdef CONFIG_PM + IPW2100_PM_DISABLED = 0, + PM_STATE_SIZE = 16, +#else + IPW2100_PM_DISABLED = 1, + PM_STATE_SIZE = 0, +#endif +}; + +#define STATUS_POWERED (1<<0) +#define STATUS_CMD_ACTIVE (1<<1) /**< host command in progress */ +#define STATUS_RUNNING (1<<2) /* Card initialized, but not enabled */ +#define STATUS_ENABLED (1<<3) /* Card enabled -- can scan,Tx,Rx */ +#define STATUS_STOPPING (1<<4) /* Card is in shutdown phase */ +#define STATUS_INITIALIZED (1<<5) /* Card is ready for external calls */ +#define STATUS_ASSOCIATING (1<<9) /* Associated, but no BSSID yet */ +#define STATUS_ASSOCIATED (1<<10) /* Associated and BSSID valid */ +#define STATUS_INT_ENABLED (1<<11) +#define STATUS_RF_KILL_HW (1<<12) +#define STATUS_RF_KILL_SW (1<<13) +#define STATUS_RF_KILL_MASK (STATUS_RF_KILL_HW | STATUS_RF_KILL_SW) +#define STATUS_EXIT_PENDING (1<<14) + +#define STATUS_SCAN_PENDING (1<<23) +#define STATUS_SCANNING (1<<24) +#define STATUS_SCAN_ABORTING (1<<25) +#define STATUS_SCAN_COMPLETE (1<<26) +#define STATUS_WX_EVENT_PENDING (1<<27) +#define STATUS_RESET_PENDING (1<<29) +#define STATUS_SECURITY_UPDATED (1<<30) /* Security sync needed */ + +/* Internal NIC states */ +#define IPW_STATE_INITIALIZED (1<<0) +#define IPW_STATE_COUNTRY_FOUND (1<<1) +#define IPW_STATE_ASSOCIATED (1<<2) +#define IPW_STATE_ASSN_LOST (1<<3) +#define IPW_STATE_ASSN_CHANGED (1<<4) +#define IPW_STATE_SCAN_COMPLETE (1<<5) +#define IPW_STATE_ENTERED_PSP (1<<6) +#define IPW_STATE_LEFT_PSP (1<<7) +#define IPW_STATE_RF_KILL (1<<8) +#define IPW_STATE_DISABLED (1<<9) +#define IPW_STATE_POWER_DOWN (1<<10) +#define IPW_STATE_SCANNING (1<<11) + +#define CFG_STATIC_CHANNEL (1<<0) /* Restrict assoc. to single channel */ +#define CFG_STATIC_ESSID (1<<1) /* Restrict assoc. to single SSID */ +#define CFG_STATIC_BSSID (1<<2) /* Restrict assoc. to single BSSID */ +#define CFG_CUSTOM_MAC (1<<3) +#define CFG_LONG_PREAMBLE (1<<4) +#define CFG_ASSOCIATE (1<<6) +#define CFG_FIXED_RATE (1<<7) +#define CFG_ADHOC_CREATE (1<<8) +#define CFG_PASSIVE_SCAN (1<<10) +#ifdef CONFIG_IPW2100_MONITOR +#define CFG_CRC_CHECK (1<<11) +#endif + +#define CAP_SHARED_KEY (1<<0) /* Off = OPEN */ +#define CAP_PRIVACY_ON (1<<1) /* Off = No privacy */ + +struct ipw2100_priv { + void __iomem *ioaddr; + + int stop_hang_check; /* Set 1 when shutting down to kill hang_check */ + int stop_rf_kill; /* Set 1 when shutting down to kill rf_kill */ + + struct libipw_device *ieee; + unsigned long status; + unsigned long config; + unsigned long capability; + + /* Statistics */ + int resets; + time64_t reset_backoff; + + /* Context */ + u8 essid[IW_ESSID_MAX_SIZE]; + u8 essid_len; + u8 bssid[ETH_ALEN]; + u8 channel; + int last_mode; + + time64_t connect_start; + time64_t last_reset; + + u32 channel_mask; + u32 fatal_error; + u32 fatal_errors[IPW2100_ERROR_QUEUE]; + u32 fatal_index; + int eeprom_version; + int firmware_version; + unsigned long hw_features; + int hangs; + u32 last_rtc; + int dump_raw; /* 1 to dump raw bytes in /sys/.../memory */ + u8 *snapshot[0x30]; + + u8 mandatory_bssid_mac[ETH_ALEN]; + u8 mac_addr[ETH_ALEN]; + + int power_mode; + + int messages_sent; + + int short_retry_limit; + int long_retry_limit; + + u32 rts_threshold; + u32 frag_threshold; + + int in_isr; + + u32 tx_rates; + int tx_power; + u32 beacon_interval; + + char nick[IW_ESSID_MAX_SIZE + 1]; + + struct ipw2100_status_queue status_queue; + + struct statistic txq_stat; + struct statistic rxq_stat; + struct ipw2100_bd_queue rx_queue; + struct ipw2100_bd_queue tx_queue; + struct ipw2100_rx_packet *rx_buffers; + + struct statistic fw_pend_stat; + struct list_head fw_pend_list; + + struct statistic msg_free_stat; + struct statistic msg_pend_stat; + struct list_head msg_free_list; + struct list_head msg_pend_list; + struct ipw2100_tx_packet *msg_buffers; + + struct statistic tx_free_stat; + struct statistic tx_pend_stat; + struct list_head tx_free_list; + struct list_head tx_pend_list; + struct ipw2100_tx_packet *tx_buffers; + + struct ipw2100_ordinals ordinals; + + struct pci_dev *pci_dev; + + struct proc_dir_entry *dir_dev; + + struct net_device *net_dev; + struct iw_statistics wstats; + + struct iw_public_data wireless_data; + + struct tasklet_struct irq_tasklet; + + struct delayed_work reset_work; + struct delayed_work security_work; + struct delayed_work wx_event_work; + struct delayed_work hang_check; + struct delayed_work rf_kill; + struct delayed_work scan_event; + + int user_requested_scan; + + /* Track time in suspend, using CLOCK_BOOTTIME */ + time64_t suspend_at; + time64_t suspend_time; + + u32 interrupts; + int tx_interrupts; + int rx_interrupts; + int inta_other; + + spinlock_t low_lock; + struct mutex action_mutex; + struct mutex adapter_mutex; + + wait_queue_head_t wait_command_queue; +}; + +/********************************************************* + * Host Command -> From Driver to FW + *********************************************************/ + +/** + * Host command identifiers + */ +#define HOST_COMPLETE 2 +#define SYSTEM_CONFIG 6 +#define SSID 8 +#define MANDATORY_BSSID 9 +#define AUTHENTICATION_TYPE 10 +#define ADAPTER_ADDRESS 11 +#define PORT_TYPE 12 +#define INTERNATIONAL_MODE 13 +#define CHANNEL 14 +#define RTS_THRESHOLD 15 +#define FRAG_THRESHOLD 16 +#define POWER_MODE 17 +#define TX_RATES 18 +#define BASIC_TX_RATES 19 +#define WEP_KEY_INFO 20 +#define WEP_KEY_INDEX 25 +#define WEP_FLAGS 26 +#define ADD_MULTICAST 27 +#define CLEAR_ALL_MULTICAST 28 +#define BEACON_INTERVAL 29 +#define ATIM_WINDOW 30 +#define CLEAR_STATISTICS 31 +#define SEND 33 +#define TX_POWER_INDEX 36 +#define BROADCAST_SCAN 43 +#define CARD_DISABLE 44 +#define PREFERRED_BSSID 45 +#define SET_SCAN_OPTIONS 46 +#define SCAN_DWELL_TIME 47 +#define SWEEP_TABLE 48 +#define AP_OR_STATION_TABLE 49 +#define GROUP_ORDINALS 50 +#define SHORT_RETRY_LIMIT 51 +#define LONG_RETRY_LIMIT 52 + +#define HOST_PRE_POWER_DOWN 58 +#define CARD_DISABLE_PHY_OFF 61 +#define MSDU_TX_RATES 62 + +/* Rogue AP Detection */ +#define SET_STATION_STAT_BITS 64 +#define CLEAR_STATIONS_STAT_BITS 65 +#define LEAP_ROGUE_MODE 66 //TODO tbw replaced by CFG_LEAP_ROGUE_AP +#define SET_SECURITY_INFORMATION 67 +#define DISASSOCIATION_BSSID 68 +#define SET_WPA_IE 69 + +/* system configuration bit mask: */ +#define IPW_CFG_MONITOR 0x00004 +#define IPW_CFG_PREAMBLE_AUTO 0x00010 +#define IPW_CFG_IBSS_AUTO_START 0x00020 +#define IPW_CFG_LOOPBACK 0x00100 +#define IPW_CFG_ANSWER_BCSSID_PROBE 0x00800 +#define IPW_CFG_BT_SIDEBAND_SIGNAL 0x02000 +#define IPW_CFG_802_1x_ENABLE 0x04000 +#define IPW_CFG_BSS_MASK 0x08000 +#define IPW_CFG_IBSS_MASK 0x10000 + +#define IPW_SCAN_NOASSOCIATE (1<<0) +#define IPW_SCAN_MIXED_CELL (1<<1) +/* RESERVED (1<<2) */ +#define IPW_SCAN_PASSIVE (1<<3) + +#define IPW_NIC_FATAL_ERROR 0x2A7F0 +#define IPW_ERROR_ADDR(x) (x & 0x3FFFF) +#define IPW_ERROR_CODE(x) ((x & 0xFF000000) >> 24) +#define IPW2100_ERR_C3_CORRUPTION (0x10 << 24) +#define IPW2100_ERR_MSG_TIMEOUT (0x11 << 24) +#define IPW2100_ERR_FW_LOAD (0x12 << 24) + +#define IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND 0x200 +#define IPW_MEM_SRAM_HOST_INTERRUPT_AREA_LOWER_BOUND IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x0D80 + +#define IPW_MEM_HOST_SHARED_RX_BD_BASE (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x40) +#define IPW_MEM_HOST_SHARED_RX_STATUS_BASE (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x44) +#define IPW_MEM_HOST_SHARED_RX_BD_SIZE (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x48) +#define IPW_MEM_HOST_SHARED_RX_READ_INDEX (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0xa0) + +#define IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x00) +#define IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x04) +#define IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x80) + +#define IPW_MEM_HOST_SHARED_RX_WRITE_INDEX \ + (IPW_MEM_SRAM_HOST_INTERRUPT_AREA_LOWER_BOUND + 0x20) + +#define IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX \ + (IPW_MEM_SRAM_HOST_INTERRUPT_AREA_LOWER_BOUND) + +#define IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1 (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x180) +#define IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2 (IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + 0x184) + +#define IPW2100_INTA_TX_TRANSFER (0x00000001) // Bit 0 (LSB) +#define IPW2100_INTA_RX_TRANSFER (0x00000002) // Bit 1 +#define IPW2100_INTA_TX_COMPLETE (0x00000004) // Bit 2 +#define IPW2100_INTA_EVENT_INTERRUPT (0x00000008) // Bit 3 +#define IPW2100_INTA_STATUS_CHANGE (0x00000010) // Bit 4 +#define IPW2100_INTA_BEACON_PERIOD_EXPIRED (0x00000020) // Bit 5 +#define IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE (0x00010000) // Bit 16 +#define IPW2100_INTA_FW_INIT_DONE (0x01000000) // Bit 24 +#define IPW2100_INTA_FW_CALIBRATION_CALC (0x02000000) // Bit 25 +#define IPW2100_INTA_FATAL_ERROR (0x40000000) // Bit 30 +#define IPW2100_INTA_PARITY_ERROR (0x80000000) // Bit 31 (MSB) + +#define IPW_AUX_HOST_RESET_REG_PRINCETON_RESET (0x00000001) +#define IPW_AUX_HOST_RESET_REG_FORCE_NMI (0x00000002) +#define IPW_AUX_HOST_RESET_REG_PCI_HOST_CLUSTER_FATAL_NMI (0x00000004) +#define IPW_AUX_HOST_RESET_REG_CORE_FATAL_NMI (0x00000008) +#define IPW_AUX_HOST_RESET_REG_SW_RESET (0x00000080) +#define IPW_AUX_HOST_RESET_REG_MASTER_DISABLED (0x00000100) +#define IPW_AUX_HOST_RESET_REG_STOP_MASTER (0x00000200) + +#define IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY (0x00000001) // Bit 0 (LSB) +#define IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY (0x00000002) // Bit 1 +#define IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE (0x00000004) // Bit 2 +#define IPW_AUX_HOST_GP_CNTRL_BITS_SYS_CONFIG (0x000007c0) // Bits 6-10 +#define IPW_AUX_HOST_GP_CNTRL_BIT_BUS_TYPE (0x00000200) // Bit 9 +#define IPW_AUX_HOST_GP_CNTRL_BIT_BAR0_BLOCK_SIZE (0x00000400) // Bit 10 +#define IPW_AUX_HOST_GP_CNTRL_BIT_USB_MODE (0x20000000) // Bit 29 +#define IPW_AUX_HOST_GP_CNTRL_BIT_HOST_FORCES_SYS_CLK (0x40000000) // Bit 30 +#define IPW_AUX_HOST_GP_CNTRL_BIT_FW_FORCES_SYS_CLK (0x80000000) // Bit 31 (MSB) + +#define IPW_BIT_GPIO_GPIO1_MASK 0x0000000C +#define IPW_BIT_GPIO_GPIO3_MASK 0x000000C0 +#define IPW_BIT_GPIO_GPIO1_ENABLE 0x00000008 +#define IPW_BIT_GPIO_RF_KILL 0x00010000 + +#define IPW_BIT_GPIO_LED_OFF 0x00002000 // Bit 13 = 1 + +#define IPW_REG_DOMAIN_0_OFFSET 0x0000 +#define IPW_REG_DOMAIN_1_OFFSET IPW_MEM_SRAM_HOST_SHARED_LOWER_BOUND + +#define IPW_REG_INTA IPW_REG_DOMAIN_0_OFFSET + 0x0008 +#define IPW_REG_INTA_MASK IPW_REG_DOMAIN_0_OFFSET + 0x000C +#define IPW_REG_INDIRECT_ACCESS_ADDRESS IPW_REG_DOMAIN_0_OFFSET + 0x0010 +#define IPW_REG_INDIRECT_ACCESS_DATA IPW_REG_DOMAIN_0_OFFSET + 0x0014 +#define IPW_REG_AUTOINCREMENT_ADDRESS IPW_REG_DOMAIN_0_OFFSET + 0x0018 +#define IPW_REG_AUTOINCREMENT_DATA IPW_REG_DOMAIN_0_OFFSET + 0x001C +#define IPW_REG_RESET_REG IPW_REG_DOMAIN_0_OFFSET + 0x0020 +#define IPW_REG_GP_CNTRL IPW_REG_DOMAIN_0_OFFSET + 0x0024 +#define IPW_REG_GPIO IPW_REG_DOMAIN_0_OFFSET + 0x0030 +#define IPW_REG_FW_TYPE IPW_REG_DOMAIN_1_OFFSET + 0x0188 +#define IPW_REG_FW_VERSION IPW_REG_DOMAIN_1_OFFSET + 0x018C +#define IPW_REG_FW_COMPATIBILITY_VERSION IPW_REG_DOMAIN_1_OFFSET + 0x0190 + +#define IPW_REG_INDIRECT_ADDR_MASK 0x00FFFFFC + +#define IPW_INTERRUPT_MASK 0xC1010013 + +#define IPW2100_CONTROL_REG 0x220000 +#define IPW2100_CONTROL_PHY_OFF 0x8 + +#define IPW2100_COMMAND 0x00300004 +#define IPW2100_COMMAND_PHY_ON 0x0 +#define IPW2100_COMMAND_PHY_OFF 0x1 + +/* in DEBUG_AREA, values of memory always 0xd55555d5 */ +#define IPW_REG_DOA_DEBUG_AREA_START IPW_REG_DOMAIN_0_OFFSET + 0x0090 +#define IPW_REG_DOA_DEBUG_AREA_END IPW_REG_DOMAIN_0_OFFSET + 0x00FF +#define IPW_DATA_DOA_DEBUG_VALUE 0xd55555d5 + +#define IPW_INTERNAL_REGISTER_HALT_AND_RESET 0x003000e0 + +#define IPW_WAIT_CLOCK_STABILIZATION_DELAY 50 // micro seconds +#define IPW_WAIT_RESET_ARC_COMPLETE_DELAY 10 // micro seconds +#define IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY 10 // micro seconds + +// BD ring queue read/write difference +#define IPW_BD_QUEUE_W_R_MIN_SPARE 2 + +#define IPW_CACHE_LINE_LENGTH_DEFAULT 0x80 + +#define IPW_CARD_DISABLE_PHY_OFF_COMPLETE_WAIT 100 // 100 milli +#define IPW_PREPARE_POWER_DOWN_COMPLETE_WAIT 100 // 100 milli + +#define IPW_HEADER_802_11_SIZE sizeof(struct libipw_hdr_3addr) +#define IPW_MAX_80211_PAYLOAD_SIZE 2304U +#define IPW_MAX_802_11_PAYLOAD_LENGTH 2312 +#define IPW_MAX_ACCEPTABLE_TX_FRAME_LENGTH 1536 +#define IPW_MIN_ACCEPTABLE_RX_FRAME_LENGTH 60 +#define IPW_MAX_ACCEPTABLE_RX_FRAME_LENGTH \ + (IPW_MAX_ACCEPTABLE_TX_FRAME_LENGTH + IPW_HEADER_802_11_SIZE - \ + sizeof(struct ethhdr)) + +#define IPW_802_11_FCS_LENGTH 4 +#define IPW_RX_NIC_BUFFER_LENGTH \ + (IPW_MAX_802_11_PAYLOAD_LENGTH + IPW_HEADER_802_11_SIZE + \ + IPW_802_11_FCS_LENGTH) + +#define IPW_802_11_PAYLOAD_OFFSET \ + (sizeof(struct libipw_hdr_3addr) + \ + sizeof(struct libipw_snap_hdr)) + +struct ipw2100_rx { + union { + unsigned char payload[IPW_RX_NIC_BUFFER_LENGTH]; + struct libipw_hdr_4addr header; + u32 status; + struct ipw2100_notification notification; + struct ipw2100_cmd_header command; + } rx_data; +} __packed; + +/* Bit 0-7 are for 802.11b tx rates - . Bit 5-7 are reserved */ +#define TX_RATE_1_MBIT 0x0001 +#define TX_RATE_2_MBIT 0x0002 +#define TX_RATE_5_5_MBIT 0x0004 +#define TX_RATE_11_MBIT 0x0008 +#define TX_RATE_MASK 0x000F +#define DEFAULT_TX_RATES 0x000F + +#define IPW_POWER_MODE_CAM 0x00 //(always on) +#define IPW_POWER_INDEX_1 0x01 +#define IPW_POWER_INDEX_2 0x02 +#define IPW_POWER_INDEX_3 0x03 +#define IPW_POWER_INDEX_4 0x04 +#define IPW_POWER_INDEX_5 0x05 +#define IPW_POWER_AUTO 0x06 +#define IPW_POWER_MASK 0x0F +#define IPW_POWER_ENABLED 0x10 +#define IPW_POWER_LEVEL(x) ((x) & IPW_POWER_MASK) + +#define IPW_TX_POWER_AUTO 0 +#define IPW_TX_POWER_ENHANCED 1 + +#define IPW_TX_POWER_DEFAULT 32 +#define IPW_TX_POWER_MIN 0 +#define IPW_TX_POWER_MAX 16 +#define IPW_TX_POWER_MIN_DBM (-12) +#define IPW_TX_POWER_MAX_DBM 16 + +#define FW_SCAN_DONOT_ASSOCIATE 0x0001 // Dont Attempt to Associate after Scan +#define FW_SCAN_PASSIVE 0x0008 // Force PASSSIVE Scan + +#define REG_MIN_CHANNEL 0 +#define REG_MAX_CHANNEL 14 + +#define REG_CHANNEL_MASK 0x00003FFF +#define IPW_IBSS_11B_DEFAULT_MASK 0x87ff + +#define DIVERSITY_EITHER 0 // Use both antennas +#define DIVERSITY_ANTENNA_A 1 // Use antenna A +#define DIVERSITY_ANTENNA_B 2 // Use antenna B + +#define HOST_COMMAND_WAIT 0 +#define HOST_COMMAND_NO_WAIT 1 + +#define LOCK_NONE 0 +#define LOCK_DRIVER 1 +#define LOCK_FW 2 + +#define TYPE_SWEEP_ORD 0x000D +#define TYPE_IBSS_STTN_ORD 0x000E +#define TYPE_BSS_AP_ORD 0x000F +#define TYPE_RAW_BEACON_ENTRY 0x0010 +#define TYPE_CALIBRATION_DATA 0x0011 +#define TYPE_ROGUE_AP_DATA 0x0012 +#define TYPE_ASSOCIATION_REQUEST 0x0013 +#define TYPE_REASSOCIATION_REQUEST 0x0014 + +#define HW_FEATURE_RFKILL 0x0001 +#define RF_KILLSWITCH_OFF 1 +#define RF_KILLSWITCH_ON 0 + +#define IPW_COMMAND_POOL_SIZE 40 + +#define IPW_START_ORD_TAB_1 1 +#define IPW_START_ORD_TAB_2 1000 + +#define IPW_ORD_TAB_1_ENTRY_SIZE sizeof(u32) + +#define IS_ORDINAL_TABLE_ONE(mgr,id) \ + ((id >= IPW_START_ORD_TAB_1) && (id < mgr->table1_size)) +#define IS_ORDINAL_TABLE_TWO(mgr,id) \ + ((id >= IPW_START_ORD_TAB_2) && (id < (mgr->table2_size + IPW_START_ORD_TAB_2))) + +#define BSS_ID_LENGTH 6 + +// Fixed size data: Ordinal Table 1 +typedef enum _ORDINAL_TABLE_1 { // NS - means Not Supported by FW +// Transmit statistics + IPW_ORD_STAT_TX_HOST_REQUESTS = 1, // # of requested Host Tx's (MSDU) + IPW_ORD_STAT_TX_HOST_COMPLETE, // # of successful Host Tx's (MSDU) + IPW_ORD_STAT_TX_DIR_DATA, // # of successful Directed Tx's (MSDU) + + IPW_ORD_STAT_TX_DIR_DATA1 = 4, // # of successful Directed Tx's (MSDU) @ 1MB + IPW_ORD_STAT_TX_DIR_DATA2, // # of successful Directed Tx's (MSDU) @ 2MB + IPW_ORD_STAT_TX_DIR_DATA5_5, // # of successful Directed Tx's (MSDU) @ 5_5MB + IPW_ORD_STAT_TX_DIR_DATA11, // # of successful Directed Tx's (MSDU) @ 11MB + IPW_ORD_STAT_TX_DIR_DATA22, // # of successful Directed Tx's (MSDU) @ 22MB + + IPW_ORD_STAT_TX_NODIR_DATA1 = 13, // # of successful Non_Directed Tx's (MSDU) @ 1MB + IPW_ORD_STAT_TX_NODIR_DATA2, // # of successful Non_Directed Tx's (MSDU) @ 2MB + IPW_ORD_STAT_TX_NODIR_DATA5_5, // # of successful Non_Directed Tx's (MSDU) @ 5.5MB + IPW_ORD_STAT_TX_NODIR_DATA11, // # of successful Non_Directed Tx's (MSDU) @ 11MB + + IPW_ORD_STAT_NULL_DATA = 21, // # of successful NULL data Tx's + IPW_ORD_STAT_TX_RTS, // # of successful Tx RTS + IPW_ORD_STAT_TX_CTS, // # of successful Tx CTS + IPW_ORD_STAT_TX_ACK, // # of successful Tx ACK + IPW_ORD_STAT_TX_ASSN, // # of successful Association Tx's + IPW_ORD_STAT_TX_ASSN_RESP, // # of successful Association response Tx's + IPW_ORD_STAT_TX_REASSN, // # of successful Reassociation Tx's + IPW_ORD_STAT_TX_REASSN_RESP, // # of successful Reassociation response Tx's + IPW_ORD_STAT_TX_PROBE, // # of probes successfully transmitted + IPW_ORD_STAT_TX_PROBE_RESP, // # of probe responses successfully transmitted + IPW_ORD_STAT_TX_BEACON, // # of tx beacon + IPW_ORD_STAT_TX_ATIM, // # of Tx ATIM + IPW_ORD_STAT_TX_DISASSN, // # of successful Disassociation TX + IPW_ORD_STAT_TX_AUTH, // # of successful Authentication Tx + IPW_ORD_STAT_TX_DEAUTH, // # of successful Deauthentication TX + + IPW_ORD_STAT_TX_TOTAL_BYTES = 41, // Total successful Tx data bytes + IPW_ORD_STAT_TX_RETRIES, // # of Tx retries + IPW_ORD_STAT_TX_RETRY1, // # of Tx retries at 1MBPS + IPW_ORD_STAT_TX_RETRY2, // # of Tx retries at 2MBPS + IPW_ORD_STAT_TX_RETRY5_5, // # of Tx retries at 5.5MBPS + IPW_ORD_STAT_TX_RETRY11, // # of Tx retries at 11MBPS + + IPW_ORD_STAT_TX_FAILURES = 51, // # of Tx Failures + IPW_ORD_STAT_TX_ABORT_AT_HOP, //NS // # of Tx's aborted at hop time + IPW_ORD_STAT_TX_MAX_TRIES_IN_HOP, // # of times max tries in a hop failed + IPW_ORD_STAT_TX_ABORT_LATE_DMA, //NS // # of times tx aborted due to late dma setup + IPW_ORD_STAT_TX_ABORT_STX, //NS // # of times backoff aborted + IPW_ORD_STAT_TX_DISASSN_FAIL, // # of times disassociation failed + IPW_ORD_STAT_TX_ERR_CTS, // # of missed/bad CTS frames + IPW_ORD_STAT_TX_BPDU, //NS // # of spanning tree BPDUs sent + IPW_ORD_STAT_TX_ERR_ACK, // # of tx err due to acks + + // Receive statistics + IPW_ORD_STAT_RX_HOST = 61, // # of packets passed to host + IPW_ORD_STAT_RX_DIR_DATA, // # of directed packets + IPW_ORD_STAT_RX_DIR_DATA1, // # of directed packets at 1MB + IPW_ORD_STAT_RX_DIR_DATA2, // # of directed packets at 2MB + IPW_ORD_STAT_RX_DIR_DATA5_5, // # of directed packets at 5.5MB + IPW_ORD_STAT_RX_DIR_DATA11, // # of directed packets at 11MB + IPW_ORD_STAT_RX_DIR_DATA22, // # of directed packets at 22MB + + IPW_ORD_STAT_RX_NODIR_DATA = 71, // # of nondirected packets + IPW_ORD_STAT_RX_NODIR_DATA1, // # of nondirected packets at 1MB + IPW_ORD_STAT_RX_NODIR_DATA2, // # of nondirected packets at 2MB + IPW_ORD_STAT_RX_NODIR_DATA5_5, // # of nondirected packets at 5.5MB + IPW_ORD_STAT_RX_NODIR_DATA11, // # of nondirected packets at 11MB + + IPW_ORD_STAT_RX_NULL_DATA = 80, // # of null data rx's + IPW_ORD_STAT_RX_POLL, //NS // # of poll rx + IPW_ORD_STAT_RX_RTS, // # of Rx RTS + IPW_ORD_STAT_RX_CTS, // # of Rx CTS + IPW_ORD_STAT_RX_ACK, // # of Rx ACK + IPW_ORD_STAT_RX_CFEND, // # of Rx CF End + IPW_ORD_STAT_RX_CFEND_ACK, // # of Rx CF End + CF Ack + IPW_ORD_STAT_RX_ASSN, // # of Association Rx's + IPW_ORD_STAT_RX_ASSN_RESP, // # of Association response Rx's + IPW_ORD_STAT_RX_REASSN, // # of Reassociation Rx's + IPW_ORD_STAT_RX_REASSN_RESP, // # of Reassociation response Rx's + IPW_ORD_STAT_RX_PROBE, // # of probe Rx's + IPW_ORD_STAT_RX_PROBE_RESP, // # of probe response Rx's + IPW_ORD_STAT_RX_BEACON, // # of Rx beacon + IPW_ORD_STAT_RX_ATIM, // # of Rx ATIM + IPW_ORD_STAT_RX_DISASSN, // # of disassociation Rx + IPW_ORD_STAT_RX_AUTH, // # of authentication Rx + IPW_ORD_STAT_RX_DEAUTH, // # of deauthentication Rx + + IPW_ORD_STAT_RX_TOTAL_BYTES = 101, // Total rx data bytes received + IPW_ORD_STAT_RX_ERR_CRC, // # of packets with Rx CRC error + IPW_ORD_STAT_RX_ERR_CRC1, // # of Rx CRC errors at 1MB + IPW_ORD_STAT_RX_ERR_CRC2, // # of Rx CRC errors at 2MB + IPW_ORD_STAT_RX_ERR_CRC5_5, // # of Rx CRC errors at 5.5MB + IPW_ORD_STAT_RX_ERR_CRC11, // # of Rx CRC errors at 11MB + + IPW_ORD_STAT_RX_DUPLICATE1 = 112, // # of duplicate rx packets at 1MB + IPW_ORD_STAT_RX_DUPLICATE2, // # of duplicate rx packets at 2MB + IPW_ORD_STAT_RX_DUPLICATE5_5, // # of duplicate rx packets at 5.5MB + IPW_ORD_STAT_RX_DUPLICATE11, // # of duplicate rx packets at 11MB + IPW_ORD_STAT_RX_DUPLICATE = 119, // # of duplicate rx packets + + IPW_ORD_PERS_DB_LOCK = 120, // # locking fw permanent db + IPW_ORD_PERS_DB_SIZE, // # size of fw permanent db + IPW_ORD_PERS_DB_ADDR, // # address of fw permanent db + IPW_ORD_STAT_RX_INVALID_PROTOCOL, // # of rx frames with invalid protocol + IPW_ORD_SYS_BOOT_TIME, // # Boot time + IPW_ORD_STAT_RX_NO_BUFFER, // # of rx frames rejected due to no buffer + IPW_ORD_STAT_RX_ABORT_LATE_DMA, //NS // # of rx frames rejected due to dma setup too late + IPW_ORD_STAT_RX_ABORT_AT_HOP, //NS // # of rx frames aborted due to hop + IPW_ORD_STAT_RX_MISSING_FRAG, // # of rx frames dropped due to missing fragment + IPW_ORD_STAT_RX_ORPHAN_FRAG, // # of rx frames dropped due to non-sequential fragment + IPW_ORD_STAT_RX_ORPHAN_FRAME, // # of rx frames dropped due to unmatched 1st frame + IPW_ORD_STAT_RX_FRAG_AGEOUT, // # of rx frames dropped due to uncompleted frame + IPW_ORD_STAT_RX_BAD_SSID, //NS // Bad SSID (unused) + IPW_ORD_STAT_RX_ICV_ERRORS, // # of ICV errors during decryption + +// PSP Statistics + IPW_ORD_STAT_PSP_SUSPENSION = 137, // # of times adapter suspended + IPW_ORD_STAT_PSP_BCN_TIMEOUT, // # of beacon timeout + IPW_ORD_STAT_PSP_POLL_TIMEOUT, // # of poll response timeouts + IPW_ORD_STAT_PSP_NONDIR_TIMEOUT, // # of timeouts waiting for last broadcast/muticast pkt + IPW_ORD_STAT_PSP_RX_DTIMS, // # of PSP DTIMs received + IPW_ORD_STAT_PSP_RX_TIMS, // # of PSP TIMs received + IPW_ORD_STAT_PSP_STATION_ID, // PSP Station ID + +// Association and roaming + IPW_ORD_LAST_ASSN_TIME = 147, // RTC time of last association + IPW_ORD_STAT_PERCENT_MISSED_BCNS, // current calculation of % missed beacons + IPW_ORD_STAT_PERCENT_RETRIES, // current calculation of % missed tx retries + IPW_ORD_ASSOCIATED_AP_PTR, // If associated, this is ptr to the associated + // AP table entry. set to 0 if not associated + IPW_ORD_AVAILABLE_AP_CNT, // # of AP's described in the AP table + IPW_ORD_AP_LIST_PTR, // Ptr to list of available APs + IPW_ORD_STAT_AP_ASSNS, // # of associations + IPW_ORD_STAT_ASSN_FAIL, // # of association failures + IPW_ORD_STAT_ASSN_RESP_FAIL, // # of failuresdue to response fail + IPW_ORD_STAT_FULL_SCANS, // # of full scans + + IPW_ORD_CARD_DISABLED, // # Card Disabled + IPW_ORD_STAT_ROAM_INHIBIT, // # of times roaming was inhibited due to ongoing activity + IPW_FILLER_40, + IPW_ORD_RSSI_AT_ASSN = 160, // RSSI of associated AP at time of association + IPW_ORD_STAT_ASSN_CAUSE1, // # of reassociations due to no tx from AP in last N + // hops or no prob_ responses in last 3 minutes + IPW_ORD_STAT_ASSN_CAUSE2, // # of reassociations due to poor tx/rx quality + IPW_ORD_STAT_ASSN_CAUSE3, // # of reassociations due to tx/rx quality with excessive + // load at the AP + IPW_ORD_STAT_ASSN_CAUSE4, // # of reassociations due to AP RSSI level fell below + // eligible group + IPW_ORD_STAT_ASSN_CAUSE5, // # of reassociations due to load leveling + IPW_ORD_STAT_ASSN_CAUSE6, //NS // # of reassociations due to dropped by Ap + IPW_FILLER_41, + IPW_FILLER_42, + IPW_FILLER_43, + IPW_ORD_STAT_AUTH_FAIL, // # of times authentication failed + IPW_ORD_STAT_AUTH_RESP_FAIL, // # of times authentication response failed + IPW_ORD_STATION_TABLE_CNT, // # of entries in association table + +// Other statistics + IPW_ORD_RSSI_AVG_CURR = 173, // Current avg RSSI + IPW_ORD_STEST_RESULTS_CURR, //NS // Current self test results word + IPW_ORD_STEST_RESULTS_CUM, //NS // Cummulative self test results word + IPW_ORD_SELF_TEST_STATUS, //NS // + IPW_ORD_POWER_MGMT_MODE, // Power mode - 0=CAM, 1=PSP + IPW_ORD_POWER_MGMT_INDEX, //NS // + IPW_ORD_COUNTRY_CODE, // IEEE country code as recv'd from beacon + IPW_ORD_COUNTRY_CHANNELS, // channels supported by country +// IPW_ORD_COUNTRY_CHANNELS: +// For 11b the lower 2-byte are used for channels from 1-14 +// and the higher 2-byte are not used. + IPW_ORD_RESET_CNT, // # of adapter resets (warm) + IPW_ORD_BEACON_INTERVAL, // Beacon interval + + IPW_ORD_PRINCETON_VERSION = 184, //NS // Princeton Version + IPW_ORD_ANTENNA_DIVERSITY, // TRUE if antenna diversity is disabled + IPW_ORD_CCA_RSSI, //NS // CCA RSSI value (factory programmed) + IPW_ORD_STAT_EEPROM_UPDATE, //NS // # of times config EEPROM updated + IPW_ORD_DTIM_PERIOD, // # of beacon intervals between DTIMs + IPW_ORD_OUR_FREQ, // current radio freq lower digits - channel ID + + IPW_ORD_RTC_TIME = 190, // current RTC time + IPW_ORD_PORT_TYPE, // operating mode + IPW_ORD_CURRENT_TX_RATE, // current tx rate + IPW_ORD_SUPPORTED_RATES, // Bitmap of supported tx rates + IPW_ORD_ATIM_WINDOW, // current ATIM Window + IPW_ORD_BASIC_RATES, // bitmap of basic tx rates + IPW_ORD_NIC_HIGHEST_RATE, // bitmap of basic tx rates + IPW_ORD_AP_HIGHEST_RATE, // bitmap of basic tx rates + IPW_ORD_CAPABILITIES, // Management frame capability field + IPW_ORD_AUTH_TYPE, // Type of authentication + IPW_ORD_RADIO_TYPE, // Adapter card platform type + IPW_ORD_RTS_THRESHOLD = 201, // Min length of packet after which RTS handshaking is used + IPW_ORD_INT_MODE, // International mode + IPW_ORD_FRAGMENTATION_THRESHOLD, // protocol frag threshold + IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, // EEPROM offset in SRAM + IPW_ORD_EEPROM_SRAM_DB_BLOCK_SIZE, // EEPROM size in SRAM + IPW_ORD_EEPROM_SKU_CAPABILITY, // EEPROM SKU Capability 206 = + IPW_ORD_EEPROM_IBSS_11B_CHANNELS, // EEPROM IBSS 11b channel set + + IPW_ORD_MAC_VERSION = 209, // MAC Version + IPW_ORD_MAC_REVISION, // MAC Revision + IPW_ORD_RADIO_VERSION, // Radio Version + IPW_ORD_NIC_MANF_DATE_TIME, // MANF Date/Time STAMP + IPW_ORD_UCODE_VERSION, // Ucode Version + IPW_ORD_HW_RF_SWITCH_STATE = 214, // HW RF Kill Switch State +} ORDINALTABLE1; + +// ordinal table 2 +// Variable length data: +#define IPW_FIRST_VARIABLE_LENGTH_ORDINAL 1001 + +typedef enum _ORDINAL_TABLE_2 { // NS - means Not Supported by FW + IPW_ORD_STAT_BASE = 1000, // contains number of variable ORDs + IPW_ORD_STAT_ADAPTER_MAC = 1001, // 6 bytes: our adapter MAC address + IPW_ORD_STAT_PREFERRED_BSSID = 1002, // 6 bytes: BSSID of the preferred AP + IPW_ORD_STAT_MANDATORY_BSSID = 1003, // 6 bytes: BSSID of the mandatory AP + IPW_FILL_1, //NS // + IPW_ORD_STAT_COUNTRY_TEXT = 1005, // 36 bytes: Country name text, First two bytes are Country code + IPW_ORD_STAT_ASSN_SSID = 1006, // 32 bytes: ESSID String + IPW_ORD_STATION_TABLE = 1007, // ? bytes: Station/AP table (via Direct SSID Scans) + IPW_ORD_STAT_SWEEP_TABLE = 1008, // ? bytes: Sweep/Host Table table (via Broadcast Scans) + IPW_ORD_STAT_ROAM_LOG = 1009, // ? bytes: Roaming log + IPW_ORD_STAT_RATE_LOG = 1010, //NS // 0 bytes: Rate log + IPW_ORD_STAT_FIFO = 1011, //NS // 0 bytes: Fifo buffer data structures + IPW_ORD_STAT_FW_VER_NUM = 1012, // 14 bytes: fw version ID string as in (a.bb.ccc; "0.08.011") + IPW_ORD_STAT_FW_DATE = 1013, // 14 bytes: fw date string (mmm dd yyyy; "Mar 13 2002") + IPW_ORD_STAT_ASSN_AP_BSSID = 1014, // 6 bytes: MAC address of associated AP + IPW_ORD_STAT_DEBUG = 1015, //NS // ? bytes: + IPW_ORD_STAT_NIC_BPA_NUM = 1016, // 11 bytes: NIC BPA number in ASCII + IPW_ORD_STAT_UCODE_DATE = 1017, // 5 bytes: uCode date + IPW_ORD_SECURITY_NGOTIATION_RESULT = 1018, +} ORDINALTABLE2; // NS - means Not Supported by FW + +#define IPW_LAST_VARIABLE_LENGTH_ORDINAL 1018 + +#ifndef WIRELESS_SPY +#define WIRELESS_SPY // enable iwspy support +#endif + +#define IPW_HOST_FW_SHARED_AREA0 0x0002f200 +#define IPW_HOST_FW_SHARED_AREA0_END 0x0002f510 // 0x310 bytes + +#define IPW_HOST_FW_SHARED_AREA1 0x0002f610 +#define IPW_HOST_FW_SHARED_AREA1_END 0x0002f630 // 0x20 bytes + +#define IPW_HOST_FW_SHARED_AREA2 0x0002fa00 +#define IPW_HOST_FW_SHARED_AREA2_END 0x0002fa20 // 0x20 bytes + +#define IPW_HOST_FW_SHARED_AREA3 0x0002fc00 +#define IPW_HOST_FW_SHARED_AREA3_END 0x0002fc10 // 0x10 bytes + +#define IPW_HOST_FW_INTERRUPT_AREA 0x0002ff80 +#define IPW_HOST_FW_INTERRUPT_AREA_END 0x00030000 // 0x80 bytes + +struct ipw2100_fw_chunk { + unsigned char *buf; + long len; + long pos; + struct list_head list; +}; + +struct ipw2100_fw_chunk_set { + const void *data; + unsigned long size; +}; + +struct ipw2100_fw { + int version; + struct ipw2100_fw_chunk_set fw; + struct ipw2100_fw_chunk_set uc; + const struct firmware *fw_entry; +}; + +#define MAX_FW_VERSION_LEN 14 + +#endif /* _IPW2100_H */ diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c new file mode 100644 index 000000000..9dfa34a74 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c @@ -0,0 +1,12008 @@ +// SPDX-License-Identifier: GPL-2.0-only +/****************************************************************************** + + Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved. + + 802.11 status code portion of this file from ethereal-0.10.6: + Copyright 2000, Axis Communications AB + Ethereal - Network traffic analyzer + By Gerald Combs <gerald@ethereal.com> + Copyright 1998 Gerald Combs + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ + +#include <linux/sched.h> +#include <linux/slab.h> +#include <net/cfg80211-wext.h> +#include "ipw2200.h" +#include "ipw.h" + + +#ifndef KBUILD_EXTMOD +#define VK "k" +#else +#define VK +#endif + +#ifdef CONFIG_IPW2200_DEBUG +#define VD "d" +#else +#define VD +#endif + +#ifdef CONFIG_IPW2200_MONITOR +#define VM "m" +#else +#define VM +#endif + +#ifdef CONFIG_IPW2200_PROMISCUOUS +#define VP "p" +#else +#define VP +#endif + +#ifdef CONFIG_IPW2200_RADIOTAP +#define VR "r" +#else +#define VR +#endif + +#ifdef CONFIG_IPW2200_QOS +#define VQ "q" +#else +#define VQ +#endif + +#define IPW2200_VERSION "1.2.2" VK VD VM VP VR VQ +#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver" +#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" +#define DRV_VERSION IPW2200_VERSION + +#define ETH_P_80211_STATS (ETH_P_80211_RAW + 1) + +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_VERSION(DRV_VERSION); +MODULE_AUTHOR(DRV_COPYRIGHT); +MODULE_LICENSE("GPL"); +MODULE_FIRMWARE("ipw2200-ibss.fw"); +#ifdef CONFIG_IPW2200_MONITOR +MODULE_FIRMWARE("ipw2200-sniffer.fw"); +#endif +MODULE_FIRMWARE("ipw2200-bss.fw"); + +static int cmdlog = 0; +static int debug = 0; +static int default_channel = 0; +static int network_mode = 0; + +static u32 ipw_debug_level; +static int associate; +static int auto_create = 1; +static int led_support = 1; +static int disable = 0; +static int bt_coexist = 0; +static int hwcrypto = 0; +static int roaming = 1; +static const char ipw_modes[] = { + 'a', 'b', 'g', '?' +}; +static int antenna = CFG_SYS_ANTENNA_BOTH; + +#ifdef CONFIG_IPW2200_PROMISCUOUS +static int rtap_iface = 0; /* def: 0 -- do not create rtap interface */ +#endif + +static struct ieee80211_rate ipw2200_rates[] = { + { .bitrate = 10 }, + { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 60 }, + { .bitrate = 90 }, + { .bitrate = 120 }, + { .bitrate = 180 }, + { .bitrate = 240 }, + { .bitrate = 360 }, + { .bitrate = 480 }, + { .bitrate = 540 } +}; + +#define ipw2200_a_rates (ipw2200_rates + 4) +#define ipw2200_num_a_rates 8 +#define ipw2200_bg_rates (ipw2200_rates + 0) +#define ipw2200_num_bg_rates 12 + +/* Ugly macro to convert literal channel numbers into their mhz equivalents + * There are certianly some conditions that will break this (like feeding it '30') + * but they shouldn't arise since nothing talks on channel 30. */ +#define ieee80211chan2mhz(x) \ + (((x) <= 14) ? \ + (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \ + ((x) + 1000) * 5) + +#ifdef CONFIG_IPW2200_QOS +static int qos_enable = 0; +static int qos_burst_enable = 0; +static int qos_no_ack_mask = 0; +static int burst_duration_CCK = 0; +static int burst_duration_OFDM = 0; + +static struct libipw_qos_parameters def_qos_parameters_OFDM = { + {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM, + QOS_TX3_CW_MIN_OFDM}, + {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM, + QOS_TX3_CW_MAX_OFDM}, + {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, + {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, + {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM, + QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM} +}; + +static struct libipw_qos_parameters def_qos_parameters_CCK = { + {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK, + QOS_TX3_CW_MIN_CCK}, + {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK, + QOS_TX3_CW_MAX_CCK}, + {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS}, + {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM}, + {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK, + QOS_TX3_TXOP_LIMIT_CCK} +}; + +static struct libipw_qos_parameters def_parameters_OFDM = { + {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM, + DEF_TX3_CW_MIN_OFDM}, + {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM, + DEF_TX3_CW_MAX_OFDM}, + {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, + {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, + {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM, + DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM} +}; + +static struct libipw_qos_parameters def_parameters_CCK = { + {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK, + DEF_TX3_CW_MIN_CCK}, + {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK, + DEF_TX3_CW_MAX_CCK}, + {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS}, + {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM}, + {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK, + DEF_TX3_TXOP_LIMIT_CCK} +}; + +static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 }; + +static int from_priority_to_tx_queue[] = { + IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1, + IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4 +}; + +static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv); + +static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters + *qos_param); +static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element + *qos_param); +#endif /* CONFIG_IPW2200_QOS */ + +static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev); +static void ipw_remove_current_network(struct ipw_priv *priv); +static void ipw_rx(struct ipw_priv *priv); +static int ipw_queue_tx_reclaim(struct ipw_priv *priv, + struct clx2_tx_queue *txq, int qindex); +static int ipw_queue_reset(struct ipw_priv *priv); + +static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, const void *buf, + int len, int sync); + +static void ipw_tx_queue_free(struct ipw_priv *); + +static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *); +static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *); +static void ipw_rx_queue_replenish(void *); +static int ipw_up(struct ipw_priv *); +static void ipw_bg_up(struct work_struct *work); +static void ipw_down(struct ipw_priv *); +static void ipw_bg_down(struct work_struct *work); +static int ipw_config(struct ipw_priv *); +static int init_supported_rates(struct ipw_priv *priv, + struct ipw_supported_rates *prates); +static void ipw_set_hwcrypto_keys(struct ipw_priv *); +static void ipw_send_wep_keys(struct ipw_priv *, int); + +static int snprint_line(char *buf, size_t count, + const u8 * data, u32 len, u32 ofs) +{ + int out, i, j, l; + char c; + + out = scnprintf(buf, count, "%08X", ofs); + + for (l = 0, i = 0; i < 2; i++) { + out += scnprintf(buf + out, count - out, " "); + for (j = 0; j < 8 && l < len; j++, l++) + out += scnprintf(buf + out, count - out, "%02X ", + data[(i * 8 + j)]); + for (; j < 8; j++) + out += scnprintf(buf + out, count - out, " "); + } + + out += scnprintf(buf + out, count - out, " "); + for (l = 0, i = 0; i < 2; i++) { + out += scnprintf(buf + out, count - out, " "); + for (j = 0; j < 8 && l < len; j++, l++) { + c = data[(i * 8 + j)]; + if (!isascii(c) || !isprint(c)) + c = '.'; + + out += scnprintf(buf + out, count - out, "%c", c); + } + + for (; j < 8; j++) + out += scnprintf(buf + out, count - out, " "); + } + + return out; +} + +static void printk_buf(int level, const u8 * data, u32 len) +{ + char line[81]; + u32 ofs = 0; + if (!(ipw_debug_level & level)) + return; + + while (len) { + snprint_line(line, sizeof(line), &data[ofs], + min(len, 16U), ofs); + printk(KERN_DEBUG "%s\n", line); + ofs += 16; + len -= min(len, 16U); + } +} + +static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len) +{ + size_t out = size; + u32 ofs = 0; + int total = 0; + + while (size && len) { + out = snprint_line(output, size, &data[ofs], + min_t(size_t, len, 16U), ofs); + + ofs += 16; + output += out; + size -= out; + len -= min_t(size_t, len, 16U); + total += out; + } + return total; +} + +/* alias for 32-bit indirect read (for SRAM/reg above 4K), with debug wrapper */ +static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg); +#define ipw_read_reg32(a, b) _ipw_read_reg32(a, b) + +/* alias for 8-bit indirect read (for SRAM/reg above 4K), with debug wrapper */ +static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg); +#define ipw_read_reg8(a, b) _ipw_read_reg8(a, b) + +/* 8-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ +static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value); +static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c) +{ + IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__, + __LINE__, (u32) (b), (u32) (c)); + _ipw_write_reg8(a, b, c); +} + +/* 16-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ +static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value); +static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c) +{ + IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__, + __LINE__, (u32) (b), (u32) (c)); + _ipw_write_reg16(a, b, c); +} + +/* 32-bit indirect write (for SRAM/reg above 4K), with debug wrapper */ +static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value); +static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c) +{ + IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__, + __LINE__, (u32) (b), (u32) (c)); + _ipw_write_reg32(a, b, c); +} + +/* 8-bit direct write (low 4K) */ +static inline void _ipw_write8(struct ipw_priv *ipw, unsigned long ofs, + u8 val) +{ + writeb(val, ipw->hw_base + ofs); +} + +/* 8-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ +#define ipw_write8(ipw, ofs, val) do { \ + IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, \ + __LINE__, (u32)(ofs), (u32)(val)); \ + _ipw_write8(ipw, ofs, val); \ +} while (0) + +/* 16-bit direct write (low 4K) */ +static inline void _ipw_write16(struct ipw_priv *ipw, unsigned long ofs, + u16 val) +{ + writew(val, ipw->hw_base + ofs); +} + +/* 16-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ +#define ipw_write16(ipw, ofs, val) do { \ + IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, \ + __LINE__, (u32)(ofs), (u32)(val)); \ + _ipw_write16(ipw, ofs, val); \ +} while (0) + +/* 32-bit direct write (low 4K) */ +static inline void _ipw_write32(struct ipw_priv *ipw, unsigned long ofs, + u32 val) +{ + writel(val, ipw->hw_base + ofs); +} + +/* 32-bit direct write (for low 4K of SRAM/regs), with debug wrapper */ +#define ipw_write32(ipw, ofs, val) do { \ + IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, \ + __LINE__, (u32)(ofs), (u32)(val)); \ + _ipw_write32(ipw, ofs, val); \ +} while (0) + +/* 8-bit direct read (low 4K) */ +static inline u8 _ipw_read8(struct ipw_priv *ipw, unsigned long ofs) +{ + return readb(ipw->hw_base + ofs); +} + +/* alias to 8-bit direct read (low 4K of SRAM/regs), with debug wrapper */ +#define ipw_read8(ipw, ofs) ({ \ + IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", __FILE__, __LINE__, \ + (u32)(ofs)); \ + _ipw_read8(ipw, ofs); \ +}) + +/* 16-bit direct read (low 4K) */ +static inline u16 _ipw_read16(struct ipw_priv *ipw, unsigned long ofs) +{ + return readw(ipw->hw_base + ofs); +} + +/* alias to 16-bit direct read (low 4K of SRAM/regs), with debug wrapper */ +#define ipw_read16(ipw, ofs) ({ \ + IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", __FILE__, __LINE__, \ + (u32)(ofs)); \ + _ipw_read16(ipw, ofs); \ +}) + +/* 32-bit direct read (low 4K) */ +static inline u32 _ipw_read32(struct ipw_priv *ipw, unsigned long ofs) +{ + return readl(ipw->hw_base + ofs); +} + +/* alias to 32-bit direct read (low 4K of SRAM/regs), with debug wrapper */ +#define ipw_read32(ipw, ofs) ({ \ + IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", __FILE__, __LINE__, \ + (u32)(ofs)); \ + _ipw_read32(ipw, ofs); \ +}) + +static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int); +/* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */ +#define ipw_read_indirect(a, b, c, d) ({ \ + IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %u bytes\n", __FILE__, \ + __LINE__, (u32)(b), (u32)(d)); \ + _ipw_read_indirect(a, b, c, d); \ +}) + +/* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */ +static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data, + int num); +#define ipw_write_indirect(a, b, c, d) do { \ + IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %u bytes\n", __FILE__, \ + __LINE__, (u32)(b), (u32)(d)); \ + _ipw_write_indirect(a, b, c, d); \ +} while (0) + +/* 32-bit indirect write (above 4K) */ +static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value) +{ + IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value); + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); + _ipw_write32(priv, IPW_INDIRECT_DATA, value); +} + +/* 8-bit indirect write (above 4K) */ +static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value) +{ + u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */ + u32 dif_len = reg - aligned_addr; + + IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + _ipw_write8(priv, IPW_INDIRECT_DATA + dif_len, value); +} + +/* 16-bit indirect write (above 4K) */ +static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value) +{ + u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK; /* dword align */ + u32 dif_len = (reg - aligned_addr) & (~0x1ul); + + IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value); + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + _ipw_write16(priv, IPW_INDIRECT_DATA + dif_len, value); +} + +/* 8-bit indirect read (above 4K) */ +static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg) +{ + u32 word; + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK); + IPW_DEBUG_IO(" reg = 0x%8X :\n", reg); + word = _ipw_read32(priv, IPW_INDIRECT_DATA); + return (word >> ((reg & 0x3) * 8)) & 0xff; +} + +/* 32-bit indirect read (above 4K) */ +static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg) +{ + u32 value; + + IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg); + + _ipw_write32(priv, IPW_INDIRECT_ADDR, reg); + value = _ipw_read32(priv, IPW_INDIRECT_DATA); + IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x\n", reg, value); + return value; +} + +/* General purpose, no alignment requirement, iterative (multi-byte) read, */ +/* for area above 1st 4K of SRAM/reg space */ +static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, + int num) +{ + u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */ + u32 dif_len = addr - aligned_addr; + u32 i; + + IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); + + if (num <= 0) { + return; + } + + /* Read the first dword (or portion) byte by byte */ + if (unlikely(dif_len)) { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + /* Start reading at aligned_addr + dif_len */ + for (i = dif_len; ((i < 4) && (num > 0)); i++, num--) + *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i); + aligned_addr += 4; + } + + /* Read all of the middle dwords as dwords, with auto-increment */ + _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); + for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4) + *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA); + + /* Read the last dword (or portion) byte by byte */ + if (unlikely(num)) { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + for (i = 0; num > 0; i++, num--) + *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i); + } +} + +/* General purpose, no alignment requirement, iterative (multi-byte) write, */ +/* for area above 1st 4K of SRAM/reg space */ +static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf, + int num) +{ + u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK; /* dword align */ + u32 dif_len = addr - aligned_addr; + u32 i; + + IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num); + + if (num <= 0) { + return; + } + + /* Write the first dword (or portion) byte by byte */ + if (unlikely(dif_len)) { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + /* Start writing at aligned_addr + dif_len */ + for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++) + _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); + aligned_addr += 4; + } + + /* Write all of the middle dwords as dwords, with auto-increment */ + _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr); + for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4) + _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf); + + /* Write the last dword (or portion) byte by byte */ + if (unlikely(num)) { + _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr); + for (i = 0; num > 0; i++, num--, buf++) + _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf); + } +} + +/* General purpose, no alignment requirement, iterative (multi-byte) write, */ +/* for 1st 4K of SRAM/regs space */ +static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf, + int num) +{ + memcpy_toio((priv->hw_base + addr), buf, num); +} + +/* Set bit(s) in low 4K of SRAM/regs */ +static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask) +{ + ipw_write32(priv, reg, ipw_read32(priv, reg) | mask); +} + +/* Clear bit(s) in low 4K of SRAM/regs */ +static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask) +{ + ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask); +} + +static inline void __ipw_enable_interrupts(struct ipw_priv *priv) +{ + if (priv->status & STATUS_INT_ENABLED) + return; + priv->status |= STATUS_INT_ENABLED; + ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL); +} + +static inline void __ipw_disable_interrupts(struct ipw_priv *priv) +{ + if (!(priv->status & STATUS_INT_ENABLED)) + return; + priv->status &= ~STATUS_INT_ENABLED; + ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); +} + +static inline void ipw_enable_interrupts(struct ipw_priv *priv) +{ + unsigned long flags; + + spin_lock_irqsave(&priv->irq_lock, flags); + __ipw_enable_interrupts(priv); + spin_unlock_irqrestore(&priv->irq_lock, flags); +} + +static inline void ipw_disable_interrupts(struct ipw_priv *priv) +{ + unsigned long flags; + + spin_lock_irqsave(&priv->irq_lock, flags); + __ipw_disable_interrupts(priv); + spin_unlock_irqrestore(&priv->irq_lock, flags); +} + +static char *ipw_error_desc(u32 val) +{ + switch (val) { + case IPW_FW_ERROR_OK: + return "ERROR_OK"; + case IPW_FW_ERROR_FAIL: + return "ERROR_FAIL"; + case IPW_FW_ERROR_MEMORY_UNDERFLOW: + return "MEMORY_UNDERFLOW"; + case IPW_FW_ERROR_MEMORY_OVERFLOW: + return "MEMORY_OVERFLOW"; + case IPW_FW_ERROR_BAD_PARAM: + return "BAD_PARAM"; + case IPW_FW_ERROR_BAD_CHECKSUM: + return "BAD_CHECKSUM"; + case IPW_FW_ERROR_NMI_INTERRUPT: + return "NMI_INTERRUPT"; + case IPW_FW_ERROR_BAD_DATABASE: + return "BAD_DATABASE"; + case IPW_FW_ERROR_ALLOC_FAIL: + return "ALLOC_FAIL"; + case IPW_FW_ERROR_DMA_UNDERRUN: + return "DMA_UNDERRUN"; + case IPW_FW_ERROR_DMA_STATUS: + return "DMA_STATUS"; + case IPW_FW_ERROR_DINO_ERROR: + return "DINO_ERROR"; + case IPW_FW_ERROR_EEPROM_ERROR: + return "EEPROM_ERROR"; + case IPW_FW_ERROR_SYSASSERT: + return "SYSASSERT"; + case IPW_FW_ERROR_FATAL_ERROR: + return "FATAL_ERROR"; + default: + return "UNKNOWN_ERROR"; + } +} + +static void ipw_dump_error_log(struct ipw_priv *priv, + struct ipw_fw_error *error) +{ + u32 i; + + if (!error) { + IPW_ERROR("Error allocating and capturing error log. " + "Nothing to dump.\n"); + return; + } + + IPW_ERROR("Start IPW Error Log Dump:\n"); + IPW_ERROR("Status: 0x%08X, Config: %08X\n", + error->status, error->config); + + for (i = 0; i < error->elem_len; i++) + IPW_ERROR("%s %i 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n", + ipw_error_desc(error->elem[i].desc), + error->elem[i].time, + error->elem[i].blink1, + error->elem[i].blink2, + error->elem[i].link1, + error->elem[i].link2, error->elem[i].data); + for (i = 0; i < error->log_len; i++) + IPW_ERROR("%i\t0x%08x\t%i\n", + error->log[i].time, + error->log[i].data, error->log[i].event); +} + +static inline int ipw_is_init(struct ipw_priv *priv) +{ + return (priv->status & STATUS_INIT) ? 1 : 0; +} + +static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len) +{ + u32 addr, field_info, field_len, field_count, total_len; + + IPW_DEBUG_ORD("ordinal = %i\n", ord); + + if (!priv || !val || !len) { + IPW_DEBUG_ORD("Invalid argument\n"); + return -EINVAL; + } + + /* verify device ordinal tables have been initialized */ + if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) { + IPW_DEBUG_ORD("Access ordinals before initialization\n"); + return -EINVAL; + } + + switch (IPW_ORD_TABLE_ID_MASK & ord) { + case IPW_ORD_TABLE_0_MASK: + /* + * TABLE 0: Direct access to a table of 32 bit values + * + * This is a very simple table with the data directly + * read from the table + */ + + /* remove the table id from the ordinal */ + ord &= IPW_ORD_TABLE_VALUE_MASK; + + /* boundary check */ + if (ord > priv->table0_len) { + IPW_DEBUG_ORD("ordinal value (%i) longer then " + "max (%i)\n", ord, priv->table0_len); + return -EINVAL; + } + + /* verify we have enough room to store the value */ + if (*len < sizeof(u32)) { + IPW_DEBUG_ORD("ordinal buffer length too small, " + "need %zd\n", sizeof(u32)); + return -EINVAL; + } + + IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n", + ord, priv->table0_addr + (ord << 2)); + + *len = sizeof(u32); + ord <<= 2; + *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord); + break; + + case IPW_ORD_TABLE_1_MASK: + /* + * TABLE 1: Indirect access to a table of 32 bit values + * + * This is a fairly large table of u32 values each + * representing starting addr for the data (which is + * also a u32) + */ + + /* remove the table id from the ordinal */ + ord &= IPW_ORD_TABLE_VALUE_MASK; + + /* boundary check */ + if (ord > priv->table1_len) { + IPW_DEBUG_ORD("ordinal value too long\n"); + return -EINVAL; + } + + /* verify we have enough room to store the value */ + if (*len < sizeof(u32)) { + IPW_DEBUG_ORD("ordinal buffer length too small, " + "need %zd\n", sizeof(u32)); + return -EINVAL; + } + + *((u32 *) val) = + ipw_read_reg32(priv, (priv->table1_addr + (ord << 2))); + *len = sizeof(u32); + break; + + case IPW_ORD_TABLE_2_MASK: + /* + * TABLE 2: Indirect access to a table of variable sized values + * + * This table consist of six values, each containing + * - dword containing the starting offset of the data + * - dword containing the lengh in the first 16bits + * and the count in the second 16bits + */ + + /* remove the table id from the ordinal */ + ord &= IPW_ORD_TABLE_VALUE_MASK; + + /* boundary check */ + if (ord > priv->table2_len) { + IPW_DEBUG_ORD("ordinal value too long\n"); + return -EINVAL; + } + + /* get the address of statistic */ + addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3)); + + /* get the second DW of statistics ; + * two 16-bit words - first is length, second is count */ + field_info = + ipw_read_reg32(priv, + priv->table2_addr + (ord << 3) + + sizeof(u32)); + + /* get each entry length */ + field_len = *((u16 *) & field_info); + + /* get number of entries */ + field_count = *(((u16 *) & field_info) + 1); + + /* abort if not enough memory */ + total_len = field_len * field_count; + if (total_len > *len) { + *len = total_len; + return -EINVAL; + } + + *len = total_len; + if (!total_len) + return 0; + + IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, " + "field_info = 0x%08x\n", + addr, total_len, field_info); + ipw_read_indirect(priv, addr, val, total_len); + break; + + default: + IPW_DEBUG_ORD("Invalid ordinal!\n"); + return -EINVAL; + + } + + return 0; +} + +static void ipw_init_ordinals(struct ipw_priv *priv) +{ + priv->table0_addr = IPW_ORDINALS_TABLE_LOWER; + priv->table0_len = ipw_read32(priv, priv->table0_addr); + + IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n", + priv->table0_addr, priv->table0_len); + + priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1); + priv->table1_len = ipw_read_reg32(priv, priv->table1_addr); + + IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n", + priv->table1_addr, priv->table1_len); + + priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2); + priv->table2_len = ipw_read_reg32(priv, priv->table2_addr); + priv->table2_len &= 0x0000ffff; /* use first two bytes */ + + IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n", + priv->table2_addr, priv->table2_len); + +} + +static u32 ipw_register_toggle(u32 reg) +{ + reg &= ~IPW_START_STANDBY; + if (reg & IPW_GATE_ODMA) + reg &= ~IPW_GATE_ODMA; + if (reg & IPW_GATE_IDMA) + reg &= ~IPW_GATE_IDMA; + if (reg & IPW_GATE_ADMA) + reg &= ~IPW_GATE_ADMA; + return reg; +} + +/* + * LED behavior: + * - On radio ON, turn on any LEDs that require to be on during start + * - On initialization, start unassociated blink + * - On association, disable unassociated blink + * - On disassociation, start unassociated blink + * - On radio OFF, turn off any LEDs started during radio on + * + */ +#define LD_TIME_LINK_ON msecs_to_jiffies(300) +#define LD_TIME_LINK_OFF msecs_to_jiffies(2700) +#define LD_TIME_ACT_ON msecs_to_jiffies(250) + +static void ipw_led_link_on(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* If configured to not use LEDs, or nic_type is 1, + * then we don't toggle a LINK led */ + if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1) + return; + + spin_lock_irqsave(&priv->lock, flags); + + if (!(priv->status & STATUS_RF_KILL_MASK) && + !(priv->status & STATUS_LED_LINK_ON)) { + IPW_DEBUG_LED("Link LED On\n"); + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led |= priv->led_association_on; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + priv->status |= STATUS_LED_LINK_ON; + + /* If we aren't associated, schedule turning the LED off */ + if (!(priv->status & STATUS_ASSOCIATED)) + schedule_delayed_work(&priv->led_link_off, + LD_TIME_LINK_ON); + } + + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_bg_led_link_on(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, led_link_on.work); + mutex_lock(&priv->mutex); + ipw_led_link_on(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_led_link_off(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* If configured not to use LEDs, or nic type is 1, + * then we don't goggle the LINK led. */ + if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1) + return; + + spin_lock_irqsave(&priv->lock, flags); + + if (priv->status & STATUS_LED_LINK_ON) { + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led &= priv->led_association_off; + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + IPW_DEBUG_LED("Link LED Off\n"); + + priv->status &= ~STATUS_LED_LINK_ON; + + /* If we aren't associated and the radio is on, schedule + * turning the LED on (blink while unassociated) */ + if (!(priv->status & STATUS_RF_KILL_MASK) && + !(priv->status & STATUS_ASSOCIATED)) + schedule_delayed_work(&priv->led_link_on, + LD_TIME_LINK_OFF); + + } + + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_bg_led_link_off(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, led_link_off.work); + mutex_lock(&priv->mutex); + ipw_led_link_off(priv); + mutex_unlock(&priv->mutex); +} + +static void __ipw_led_activity_on(struct ipw_priv *priv) +{ + u32 led; + + if (priv->config & CFG_NO_LED) + return; + + if (priv->status & STATUS_RF_KILL_MASK) + return; + + if (!(priv->status & STATUS_LED_ACT_ON)) { + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led |= priv->led_activity_on; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + IPW_DEBUG_LED("Activity LED On\n"); + + priv->status |= STATUS_LED_ACT_ON; + + cancel_delayed_work(&priv->led_act_off); + schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON); + } else { + /* Reschedule LED off for full time period */ + cancel_delayed_work(&priv->led_act_off); + schedule_delayed_work(&priv->led_act_off, LD_TIME_ACT_ON); + } +} + +#if 0 +void ipw_led_activity_on(struct ipw_priv *priv) +{ + unsigned long flags; + spin_lock_irqsave(&priv->lock, flags); + __ipw_led_activity_on(priv); + spin_unlock_irqrestore(&priv->lock, flags); +} +#endif /* 0 */ + +static void ipw_led_activity_off(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + if (priv->config & CFG_NO_LED) + return; + + spin_lock_irqsave(&priv->lock, flags); + + if (priv->status & STATUS_LED_ACT_ON) { + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led &= priv->led_activity_off; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + IPW_DEBUG_LED("Activity LED Off\n"); + + priv->status &= ~STATUS_LED_ACT_ON; + } + + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_bg_led_activity_off(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, led_act_off.work); + mutex_lock(&priv->mutex); + ipw_led_activity_off(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_led_band_on(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* Only nic type 1 supports mode LEDs */ + if (priv->config & CFG_NO_LED || + priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network) + return; + + spin_lock_irqsave(&priv->lock, flags); + + led = ipw_read_reg32(priv, IPW_EVENT_REG); + if (priv->assoc_network->mode == IEEE_A) { + led |= priv->led_ofdm_on; + led &= priv->led_association_off; + IPW_DEBUG_LED("Mode LED On: 802.11a\n"); + } else if (priv->assoc_network->mode == IEEE_G) { + led |= priv->led_ofdm_on; + led |= priv->led_association_on; + IPW_DEBUG_LED("Mode LED On: 802.11g\n"); + } else { + led &= priv->led_ofdm_off; + led |= priv->led_association_on; + IPW_DEBUG_LED("Mode LED On: 802.11b\n"); + } + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_led_band_off(struct ipw_priv *priv) +{ + unsigned long flags; + u32 led; + + /* Only nic type 1 supports mode LEDs */ + if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1) + return; + + spin_lock_irqsave(&priv->lock, flags); + + led = ipw_read_reg32(priv, IPW_EVENT_REG); + led &= priv->led_ofdm_off; + led &= priv->led_association_off; + + led = ipw_register_toggle(led); + + IPW_DEBUG_LED("Reg: 0x%08X\n", led); + ipw_write_reg32(priv, IPW_EVENT_REG, led); + + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_led_radio_on(struct ipw_priv *priv) +{ + ipw_led_link_on(priv); +} + +static void ipw_led_radio_off(struct ipw_priv *priv) +{ + ipw_led_activity_off(priv); + ipw_led_link_off(priv); +} + +static void ipw_led_link_up(struct ipw_priv *priv) +{ + /* Set the Link Led on for all nic types */ + ipw_led_link_on(priv); +} + +static void ipw_led_link_down(struct ipw_priv *priv) +{ + ipw_led_activity_off(priv); + ipw_led_link_off(priv); + + if (priv->status & STATUS_RF_KILL_MASK) + ipw_led_radio_off(priv); +} + +static void ipw_led_init(struct ipw_priv *priv) +{ + priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE]; + + /* Set the default PINs for the link and activity leds */ + priv->led_activity_on = IPW_ACTIVITY_LED; + priv->led_activity_off = ~(IPW_ACTIVITY_LED); + + priv->led_association_on = IPW_ASSOCIATED_LED; + priv->led_association_off = ~(IPW_ASSOCIATED_LED); + + /* Set the default PINs for the OFDM leds */ + priv->led_ofdm_on = IPW_OFDM_LED; + priv->led_ofdm_off = ~(IPW_OFDM_LED); + + switch (priv->nic_type) { + case EEPROM_NIC_TYPE_1: + /* In this NIC type, the LEDs are reversed.... */ + priv->led_activity_on = IPW_ASSOCIATED_LED; + priv->led_activity_off = ~(IPW_ASSOCIATED_LED); + priv->led_association_on = IPW_ACTIVITY_LED; + priv->led_association_off = ~(IPW_ACTIVITY_LED); + + if (!(priv->config & CFG_NO_LED)) + ipw_led_band_on(priv); + + /* And we don't blink link LEDs for this nic, so + * just return here */ + return; + + case EEPROM_NIC_TYPE_3: + case EEPROM_NIC_TYPE_2: + case EEPROM_NIC_TYPE_4: + case EEPROM_NIC_TYPE_0: + break; + + default: + IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n", + priv->nic_type); + priv->nic_type = EEPROM_NIC_TYPE_0; + break; + } + + if (!(priv->config & CFG_NO_LED)) { + if (priv->status & STATUS_ASSOCIATED) + ipw_led_link_on(priv); + else + ipw_led_link_off(priv); + } +} + +static void ipw_led_shutdown(struct ipw_priv *priv) +{ + ipw_led_activity_off(priv); + ipw_led_link_off(priv); + ipw_led_band_off(priv); + cancel_delayed_work(&priv->led_link_on); + cancel_delayed_work(&priv->led_link_off); + cancel_delayed_work(&priv->led_act_off); +} + +/* + * The following adds a new attribute to the sysfs representation + * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/) + * used for controlling the debug level. + * + * See the level definitions in ipw for details. + */ +static ssize_t debug_level_show(struct device_driver *d, char *buf) +{ + return sprintf(buf, "0x%08X\n", ipw_debug_level); +} + +static ssize_t debug_level_store(struct device_driver *d, const char *buf, + size_t count) +{ + char *p = (char *)buf; + u32 val; + + if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { + p++; + if (p[0] == 'x' || p[0] == 'X') + p++; + val = simple_strtoul(p, &p, 16); + } else + val = simple_strtoul(p, &p, 10); + if (p == buf) + printk(KERN_INFO DRV_NAME + ": %s is not in hex or decimal form.\n", buf); + else + ipw_debug_level = val; + + return strnlen(buf, count); +} +static DRIVER_ATTR_RW(debug_level); + +static inline u32 ipw_get_event_log_len(struct ipw_priv *priv) +{ + /* length = 1st dword in log */ + return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG)); +} + +static void ipw_capture_event_log(struct ipw_priv *priv, + u32 log_len, struct ipw_event *log) +{ + u32 base; + + if (log_len) { + base = ipw_read32(priv, IPW_EVENT_LOG); + ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32), + (u8 *) log, sizeof(*log) * log_len); + } +} + +static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv) +{ + struct ipw_fw_error *error; + u32 log_len = ipw_get_event_log_len(priv); + u32 base = ipw_read32(priv, IPW_ERROR_LOG); + u32 elem_len = ipw_read_reg32(priv, base); + + error = kmalloc(sizeof(*error) + + sizeof(*error->elem) * elem_len + + sizeof(*error->log) * log_len, GFP_ATOMIC); + if (!error) { + IPW_ERROR("Memory allocation for firmware error log " + "failed.\n"); + return NULL; + } + error->jiffies = jiffies; + error->status = priv->status; + error->config = priv->config; + error->elem_len = elem_len; + error->log_len = log_len; + error->elem = (struct ipw_error_elem *)error->payload; + error->log = (struct ipw_event *)(error->elem + elem_len); + + ipw_capture_event_log(priv, log_len, error->log); + + if (elem_len) + ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem, + sizeof(*error->elem) * elem_len); + + return error; +} + +static ssize_t event_log_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + u32 log_len = ipw_get_event_log_len(priv); + u32 log_size; + struct ipw_event *log; + u32 len = 0, i; + + /* not using min() because of its strict type checking */ + log_size = PAGE_SIZE / sizeof(*log) > log_len ? + sizeof(*log) * log_len : PAGE_SIZE; + log = kzalloc(log_size, GFP_KERNEL); + if (!log) { + IPW_ERROR("Unable to allocate memory for log\n"); + return 0; + } + log_len = log_size / sizeof(*log); + ipw_capture_event_log(priv, log_len, log); + + len += scnprintf(buf + len, PAGE_SIZE - len, "%08X", log_len); + for (i = 0; i < log_len; i++) + len += scnprintf(buf + len, PAGE_SIZE - len, + "\n%08X%08X%08X", + log[i].time, log[i].event, log[i].data); + len += scnprintf(buf + len, PAGE_SIZE - len, "\n"); + kfree(log); + return len; +} + +static DEVICE_ATTR_RO(event_log); + +static ssize_t error_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + u32 len = 0, i; + if (!priv->error) + return 0; + len += scnprintf(buf + len, PAGE_SIZE - len, + "%08lX%08X%08X%08X", + priv->error->jiffies, + priv->error->status, + priv->error->config, priv->error->elem_len); + for (i = 0; i < priv->error->elem_len; i++) + len += scnprintf(buf + len, PAGE_SIZE - len, + "\n%08X%08X%08X%08X%08X%08X%08X", + priv->error->elem[i].time, + priv->error->elem[i].desc, + priv->error->elem[i].blink1, + priv->error->elem[i].blink2, + priv->error->elem[i].link1, + priv->error->elem[i].link2, + priv->error->elem[i].data); + + len += scnprintf(buf + len, PAGE_SIZE - len, + "\n%08X", priv->error->log_len); + for (i = 0; i < priv->error->log_len; i++) + len += scnprintf(buf + len, PAGE_SIZE - len, + "\n%08X%08X%08X", + priv->error->log[i].time, + priv->error->log[i].event, + priv->error->log[i].data); + len += scnprintf(buf + len, PAGE_SIZE - len, "\n"); + return len; +} + +static ssize_t error_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + kfree(priv->error); + priv->error = NULL; + return count; +} + +static DEVICE_ATTR_RW(error); + +static ssize_t cmd_log_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + u32 len = 0, i; + if (!priv->cmdlog) + return 0; + for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len; + (i != priv->cmdlog_pos) && (len < PAGE_SIZE); + i = (i + 1) % priv->cmdlog_len) { + len += + scnprintf(buf + len, PAGE_SIZE - len, + "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies, + priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd, + priv->cmdlog[i].cmd.len); + len += + snprintk_buf(buf + len, PAGE_SIZE - len, + (u8 *) priv->cmdlog[i].cmd.param, + priv->cmdlog[i].cmd.len); + len += scnprintf(buf + len, PAGE_SIZE - len, "\n"); + } + len += scnprintf(buf + len, PAGE_SIZE - len, "\n"); + return len; +} + +static DEVICE_ATTR_RO(cmd_log); + +#ifdef CONFIG_IPW2200_PROMISCUOUS +static void ipw_prom_free(struct ipw_priv *priv); +static int ipw_prom_alloc(struct ipw_priv *priv); +static ssize_t rtap_iface_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + int rc = 0; + + if (count < 1) + return -EINVAL; + + switch (buf[0]) { + case '0': + if (!rtap_iface) + return count; + + if (netif_running(priv->prom_net_dev)) { + IPW_WARNING("Interface is up. Cannot unregister.\n"); + return count; + } + + ipw_prom_free(priv); + rtap_iface = 0; + break; + + case '1': + if (rtap_iface) + return count; + + rc = ipw_prom_alloc(priv); + if (!rc) + rtap_iface = 1; + break; + + default: + return -EINVAL; + } + + if (rc) { + IPW_ERROR("Failed to register promiscuous network " + "device (error %d).\n", rc); + } + + return count; +} + +static ssize_t rtap_iface_show(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + if (rtap_iface) + return sprintf(buf, "%s", priv->prom_net_dev->name); + else { + buf[0] = '-'; + buf[1] = '1'; + buf[2] = '\0'; + return 3; + } +} + +static DEVICE_ATTR_ADMIN_RW(rtap_iface); + +static ssize_t rtap_filter_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + if (!priv->prom_priv) { + IPW_ERROR("Attempting to set filter without " + "rtap_iface enabled.\n"); + return -EPERM; + } + + priv->prom_priv->filter = simple_strtol(buf, NULL, 0); + + IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n", + BIT_ARG16(priv->prom_priv->filter)); + + return count; +} + +static ssize_t rtap_filter_show(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "0x%04X", + priv->prom_priv ? priv->prom_priv->filter : 0); +} + +static DEVICE_ATTR_ADMIN_RW(rtap_filter); +#endif + +static ssize_t scan_age_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "%d\n", priv->ieee->scan_age); +} + +static ssize_t scan_age_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + struct net_device *dev = priv->net_dev; + char buffer[] = "00000000"; + unsigned long len = + (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1; + unsigned long val; + char *p = buffer; + + IPW_DEBUG_INFO("enter\n"); + + strncpy(buffer, buf, len); + buffer[len] = 0; + + if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { + p++; + if (p[0] == 'x' || p[0] == 'X') + p++; + val = simple_strtoul(p, &p, 16); + } else + val = simple_strtoul(p, &p, 10); + if (p == buffer) { + IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name); + } else { + priv->ieee->scan_age = val; + IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age); + } + + IPW_DEBUG_INFO("exit\n"); + return len; +} + +static DEVICE_ATTR_RW(scan_age); + +static ssize_t led_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1); +} + +static ssize_t led_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + IPW_DEBUG_INFO("enter\n"); + + if (count == 0) + return 0; + + if (*buf == 0) { + IPW_DEBUG_LED("Disabling LED control.\n"); + priv->config |= CFG_NO_LED; + ipw_led_shutdown(priv); + } else { + IPW_DEBUG_LED("Enabling LED control.\n"); + priv->config &= ~CFG_NO_LED; + ipw_led_init(priv); + } + + IPW_DEBUG_INFO("exit\n"); + return count; +} + +static DEVICE_ATTR_RW(led); + +static ssize_t status_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ipw_priv *p = dev_get_drvdata(d); + return sprintf(buf, "0x%08x\n", (int)p->status); +} + +static DEVICE_ATTR_RO(status); + +static ssize_t cfg_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *p = dev_get_drvdata(d); + return sprintf(buf, "0x%08x\n", (int)p->config); +} + +static DEVICE_ATTR_RO(cfg); + +static ssize_t nic_type_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "TYPE: %d\n", priv->nic_type); +} + +static DEVICE_ATTR_RO(nic_type); + +static ssize_t ucode_version_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + u32 len = sizeof(u32), tmp = 0; + struct ipw_priv *p = dev_get_drvdata(d); + + if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len)) + return 0; + + return sprintf(buf, "0x%08x\n", tmp); +} + +static DEVICE_ATTR_RO(ucode_version); + +static ssize_t rtc_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + u32 len = sizeof(u32), tmp = 0; + struct ipw_priv *p = dev_get_drvdata(d); + + if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len)) + return 0; + + return sprintf(buf, "0x%08x\n", tmp); +} + +static DEVICE_ATTR_RO(rtc); + +/* + * Add a device attribute to view/control the delay between eeprom + * operations. + */ +static ssize_t eeprom_delay_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct ipw_priv *p = dev_get_drvdata(d); + int n = p->eeprom_delay; + return sprintf(buf, "%i\n", n); +} +static ssize_t eeprom_delay_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *p = dev_get_drvdata(d); + sscanf(buf, "%i", &p->eeprom_delay); + return strnlen(buf, count); +} + +static DEVICE_ATTR_RW(eeprom_delay); + +static ssize_t command_event_reg_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + u32 reg = 0; + struct ipw_priv *p = dev_get_drvdata(d); + + reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT); + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t command_event_reg_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + u32 reg; + struct ipw_priv *p = dev_get_drvdata(d); + + sscanf(buf, "%x", ®); + ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg); + return strnlen(buf, count); +} + +static DEVICE_ATTR_RW(command_event_reg); + +static ssize_t mem_gpio_reg_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + u32 reg = 0; + struct ipw_priv *p = dev_get_drvdata(d); + + reg = ipw_read_reg32(p, 0x301100); + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t mem_gpio_reg_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + u32 reg; + struct ipw_priv *p = dev_get_drvdata(d); + + sscanf(buf, "%x", ®); + ipw_write_reg32(p, 0x301100, reg); + return strnlen(buf, count); +} + +static DEVICE_ATTR_RW(mem_gpio_reg); + +static ssize_t indirect_dword_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + u32 reg = 0; + struct ipw_priv *priv = dev_get_drvdata(d); + + if (priv->status & STATUS_INDIRECT_DWORD) + reg = ipw_read_reg32(priv, priv->indirect_dword); + else + reg = 0; + + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t indirect_dword_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + sscanf(buf, "%x", &priv->indirect_dword); + priv->status |= STATUS_INDIRECT_DWORD; + return strnlen(buf, count); +} + +static DEVICE_ATTR_RW(indirect_dword); + +static ssize_t indirect_byte_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + u8 reg = 0; + struct ipw_priv *priv = dev_get_drvdata(d); + + if (priv->status & STATUS_INDIRECT_BYTE) + reg = ipw_read_reg8(priv, priv->indirect_byte); + else + reg = 0; + + return sprintf(buf, "0x%02x\n", reg); +} +static ssize_t indirect_byte_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + sscanf(buf, "%x", &priv->indirect_byte); + priv->status |= STATUS_INDIRECT_BYTE; + return strnlen(buf, count); +} + +static DEVICE_ATTR_RW(indirect_byte); + +static ssize_t direct_dword_show(struct device *d, + struct device_attribute *attr, char *buf) +{ + u32 reg = 0; + struct ipw_priv *priv = dev_get_drvdata(d); + + if (priv->status & STATUS_DIRECT_DWORD) + reg = ipw_read32(priv, priv->direct_dword); + else + reg = 0; + + return sprintf(buf, "0x%08x\n", reg); +} +static ssize_t direct_dword_store(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + sscanf(buf, "%x", &priv->direct_dword); + priv->status |= STATUS_DIRECT_DWORD; + return strnlen(buf, count); +} + +static DEVICE_ATTR_RW(direct_dword); + +static int rf_kill_active(struct ipw_priv *priv) +{ + if (0 == (ipw_read32(priv, 0x30) & 0x10000)) { + priv->status |= STATUS_RF_KILL_HW; + wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); + } else { + priv->status &= ~STATUS_RF_KILL_HW; + wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false); + } + + return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0; +} + +static ssize_t rf_kill_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + /* 0 - RF kill not enabled + 1 - SW based RF kill active (sysfs) + 2 - HW based RF kill active + 3 - Both HW and SW baed RF kill active */ + struct ipw_priv *priv = dev_get_drvdata(d); + int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) | + (rf_kill_active(priv) ? 0x2 : 0x0); + return sprintf(buf, "%i\n", val); +} + +static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio) +{ + if ((disable_radio ? 1 : 0) == + ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0)) + return 0; + + IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n", + disable_radio ? "OFF" : "ON"); + + if (disable_radio) { + priv->status |= STATUS_RF_KILL_SW; + + cancel_delayed_work(&priv->request_scan); + cancel_delayed_work(&priv->request_direct_scan); + cancel_delayed_work(&priv->request_passive_scan); + cancel_delayed_work(&priv->scan_event); + schedule_work(&priv->down); + } else { + priv->status &= ~STATUS_RF_KILL_SW; + if (rf_kill_active(priv)) { + IPW_DEBUG_RF_KILL("Can not turn radio back on - " + "disabled by HW switch\n"); + /* Make sure the RF_KILL check timer is running */ + cancel_delayed_work(&priv->rf_kill); + schedule_delayed_work(&priv->rf_kill, + round_jiffies_relative(2 * HZ)); + } else + schedule_work(&priv->up); + } + + return 1; +} + +static ssize_t rf_kill_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + + ipw_radio_kill_sw(priv, buf[0] == '1'); + + return count; +} + +static DEVICE_ATTR_RW(rf_kill); + +static ssize_t speed_scan_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + int pos = 0, len = 0; + if (priv->config & CFG_SPEED_SCAN) { + while (priv->speed_scan[pos] != 0) + len += sprintf(&buf[len], "%d ", + priv->speed_scan[pos++]); + return len + sprintf(&buf[len], "\n"); + } + + return sprintf(buf, "0\n"); +} + +static ssize_t speed_scan_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + int channel, pos = 0; + const char *p = buf; + + /* list of space separated channels to scan, optionally ending with 0 */ + while ((channel = simple_strtol(p, NULL, 0))) { + if (pos == MAX_SPEED_SCAN - 1) { + priv->speed_scan[pos] = 0; + break; + } + + if (libipw_is_valid_channel(priv->ieee, channel)) + priv->speed_scan[pos++] = channel; + else + IPW_WARNING("Skipping invalid channel request: %d\n", + channel); + p = strchr(p, ' '); + if (!p) + break; + while (*p == ' ' || *p == '\t') + p++; + } + + if (pos == 0) + priv->config &= ~CFG_SPEED_SCAN; + else { + priv->speed_scan_pos = 0; + priv->config |= CFG_SPEED_SCAN; + } + + return count; +} + +static DEVICE_ATTR_RW(speed_scan); + +static ssize_t net_stats_show(struct device *d, struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0'); +} + +static ssize_t net_stats_store(struct device *d, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + if (buf[0] == '1') + priv->config |= CFG_NET_STATS; + else + priv->config &= ~CFG_NET_STATS; + + return count; +} + +static DEVICE_ATTR_RW(net_stats); + +static ssize_t channels_show(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct ipw_priv *priv = dev_get_drvdata(d); + const struct libipw_geo *geo = libipw_get_geo(priv->ieee); + int len = 0, i; + + len = sprintf(&buf[len], + "Displaying %d channels in 2.4Ghz band " + "(802.11bg):\n", geo->bg_channels); + + for (i = 0; i < geo->bg_channels; i++) { + len += sprintf(&buf[len], "%d: BSS%s%s, %s, Band %s.\n", + geo->bg[i].channel, + geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT ? + " (radar spectrum)" : "", + ((geo->bg[i].flags & LIBIPW_CH_NO_IBSS) || + (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)) + ? "" : ", IBSS", + geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY ? + "passive only" : "active/passive", + geo->bg[i].flags & LIBIPW_CH_B_ONLY ? + "B" : "B/G"); + } + + len += sprintf(&buf[len], + "Displaying %d channels in 5.2Ghz band " + "(802.11a):\n", geo->a_channels); + for (i = 0; i < geo->a_channels; i++) { + len += sprintf(&buf[len], "%d: BSS%s%s, %s.\n", + geo->a[i].channel, + geo->a[i].flags & LIBIPW_CH_RADAR_DETECT ? + " (radar spectrum)" : "", + ((geo->a[i].flags & LIBIPW_CH_NO_IBSS) || + (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT)) + ? "" : ", IBSS", + geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY ? + "passive only" : "active/passive"); + } + + return len; +} + +static DEVICE_ATTR_ADMIN_RO(channels); + +static void notify_wx_assoc_event(struct ipw_priv *priv) +{ + union iwreq_data wrqu; + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + if (priv->status & STATUS_ASSOCIATED) + memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN); + else + eth_zero_addr(wrqu.ap_addr.sa_data); + wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL); +} + +static void ipw_irq_tasklet(struct tasklet_struct *t) +{ + struct ipw_priv *priv = from_tasklet(priv, t, irq_tasklet); + u32 inta, inta_mask, handled = 0; + unsigned long flags; + + spin_lock_irqsave(&priv->irq_lock, flags); + + inta = ipw_read32(priv, IPW_INTA_RW); + inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); + + if (inta == 0xFFFFFFFF) { + /* Hardware disappeared */ + IPW_WARNING("TASKLET INTA == 0xFFFFFFFF\n"); + /* Only handle the cached INTA values */ + inta = 0; + } + inta &= (IPW_INTA_MASK_ALL & inta_mask); + + /* Add any cached INTA values that need to be handled */ + inta |= priv->isr_inta; + + spin_unlock_irqrestore(&priv->irq_lock, flags); + + spin_lock_irqsave(&priv->lock, flags); + + /* handle all the justifications for the interrupt */ + if (inta & IPW_INTA_BIT_RX_TRANSFER) { + ipw_rx(priv); + handled |= IPW_INTA_BIT_RX_TRANSFER; + } + + if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) { + IPW_DEBUG_HC("Command completed.\n"); + ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1); + priv->status &= ~STATUS_HCMD_ACTIVE; + wake_up_interruptible(&priv->wait_command_queue); + handled |= IPW_INTA_BIT_TX_CMD_QUEUE; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_1) { + IPW_DEBUG_TX("TX_QUEUE_1\n"); + ipw_queue_tx_reclaim(priv, &priv->txq[0], 0); + handled |= IPW_INTA_BIT_TX_QUEUE_1; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_2) { + IPW_DEBUG_TX("TX_QUEUE_2\n"); + ipw_queue_tx_reclaim(priv, &priv->txq[1], 1); + handled |= IPW_INTA_BIT_TX_QUEUE_2; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_3) { + IPW_DEBUG_TX("TX_QUEUE_3\n"); + ipw_queue_tx_reclaim(priv, &priv->txq[2], 2); + handled |= IPW_INTA_BIT_TX_QUEUE_3; + } + + if (inta & IPW_INTA_BIT_TX_QUEUE_4) { + IPW_DEBUG_TX("TX_QUEUE_4\n"); + ipw_queue_tx_reclaim(priv, &priv->txq[3], 3); + handled |= IPW_INTA_BIT_TX_QUEUE_4; + } + + if (inta & IPW_INTA_BIT_STATUS_CHANGE) { + IPW_WARNING("STATUS_CHANGE\n"); + handled |= IPW_INTA_BIT_STATUS_CHANGE; + } + + if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) { + IPW_WARNING("TX_PERIOD_EXPIRED\n"); + handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED; + } + + if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) { + IPW_WARNING("HOST_CMD_DONE\n"); + handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE; + } + + if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) { + IPW_WARNING("FW_INITIALIZATION_DONE\n"); + handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE; + } + + if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) { + IPW_WARNING("PHY_OFF_DONE\n"); + handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE; + } + + if (inta & IPW_INTA_BIT_RF_KILL_DONE) { + IPW_DEBUG_RF_KILL("RF_KILL_DONE\n"); + priv->status |= STATUS_RF_KILL_HW; + wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true); + wake_up_interruptible(&priv->wait_command_queue); + priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING); + cancel_delayed_work(&priv->request_scan); + cancel_delayed_work(&priv->request_direct_scan); + cancel_delayed_work(&priv->request_passive_scan); + cancel_delayed_work(&priv->scan_event); + schedule_work(&priv->link_down); + schedule_delayed_work(&priv->rf_kill, 2 * HZ); + handled |= IPW_INTA_BIT_RF_KILL_DONE; + } + + if (inta & IPW_INTA_BIT_FATAL_ERROR) { + IPW_WARNING("Firmware error detected. Restarting.\n"); + if (priv->error) { + IPW_DEBUG_FW("Sysfs 'error' log already exists.\n"); + if (ipw_debug_level & IPW_DL_FW_ERRORS) { + struct ipw_fw_error *error = + ipw_alloc_error_log(priv); + ipw_dump_error_log(priv, error); + kfree(error); + } + } else { + priv->error = ipw_alloc_error_log(priv); + if (priv->error) + IPW_DEBUG_FW("Sysfs 'error' log captured.\n"); + else + IPW_DEBUG_FW("Error allocating sysfs 'error' " + "log.\n"); + if (ipw_debug_level & IPW_DL_FW_ERRORS) + ipw_dump_error_log(priv, priv->error); + } + + /* XXX: If hardware encryption is for WPA/WPA2, + * we have to notify the supplicant. */ + if (priv->ieee->sec.encrypt) { + priv->status &= ~STATUS_ASSOCIATED; + notify_wx_assoc_event(priv); + } + + /* Keep the restart process from trying to send host + * commands by clearing the INIT status bit */ + priv->status &= ~STATUS_INIT; + + /* Cancel currently queued command. */ + priv->status &= ~STATUS_HCMD_ACTIVE; + wake_up_interruptible(&priv->wait_command_queue); + + schedule_work(&priv->adapter_restart); + handled |= IPW_INTA_BIT_FATAL_ERROR; + } + + if (inta & IPW_INTA_BIT_PARITY_ERROR) { + IPW_ERROR("Parity error\n"); + handled |= IPW_INTA_BIT_PARITY_ERROR; + } + + if (handled != inta) { + IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled); + } + + spin_unlock_irqrestore(&priv->lock, flags); + + /* enable all interrupts */ + ipw_enable_interrupts(priv); +} + +#define IPW_CMD(x) case IPW_CMD_ ## x : return #x +static char *get_cmd_string(u8 cmd) +{ + switch (cmd) { + IPW_CMD(HOST_COMPLETE); + IPW_CMD(POWER_DOWN); + IPW_CMD(SYSTEM_CONFIG); + IPW_CMD(MULTICAST_ADDRESS); + IPW_CMD(SSID); + IPW_CMD(ADAPTER_ADDRESS); + IPW_CMD(PORT_TYPE); + IPW_CMD(RTS_THRESHOLD); + IPW_CMD(FRAG_THRESHOLD); + IPW_CMD(POWER_MODE); + IPW_CMD(WEP_KEY); + IPW_CMD(TGI_TX_KEY); + IPW_CMD(SCAN_REQUEST); + IPW_CMD(SCAN_REQUEST_EXT); + IPW_CMD(ASSOCIATE); + IPW_CMD(SUPPORTED_RATES); + IPW_CMD(SCAN_ABORT); + IPW_CMD(TX_FLUSH); + IPW_CMD(QOS_PARAMETERS); + IPW_CMD(DINO_CONFIG); + IPW_CMD(RSN_CAPABILITIES); + IPW_CMD(RX_KEY); + IPW_CMD(CARD_DISABLE); + IPW_CMD(SEED_NUMBER); + IPW_CMD(TX_POWER); + IPW_CMD(COUNTRY_INFO); + IPW_CMD(AIRONET_INFO); + IPW_CMD(AP_TX_POWER); + IPW_CMD(CCKM_INFO); + IPW_CMD(CCX_VER_INFO); + IPW_CMD(SET_CALIBRATION); + IPW_CMD(SENSITIVITY_CALIB); + IPW_CMD(RETRY_LIMIT); + IPW_CMD(IPW_PRE_POWER_DOWN); + IPW_CMD(VAP_BEACON_TEMPLATE); + IPW_CMD(VAP_DTIM_PERIOD); + IPW_CMD(EXT_SUPPORTED_RATES); + IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT); + IPW_CMD(VAP_QUIET_INTERVALS); + IPW_CMD(VAP_CHANNEL_SWITCH); + IPW_CMD(VAP_MANDATORY_CHANNELS); + IPW_CMD(VAP_CELL_PWR_LIMIT); + IPW_CMD(VAP_CF_PARAM_SET); + IPW_CMD(VAP_SET_BEACONING_STATE); + IPW_CMD(MEASUREMENT); + IPW_CMD(POWER_CAPABILITY); + IPW_CMD(SUPPORTED_CHANNELS); + IPW_CMD(TPC_REPORT); + IPW_CMD(WME_INFO); + IPW_CMD(PRODUCTION_COMMAND); + default: + return "UNKNOWN"; + } +} + +#define HOST_COMPLETE_TIMEOUT HZ + +static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd) +{ + int rc = 0; + unsigned long flags; + unsigned long now, end; + + spin_lock_irqsave(&priv->lock, flags); + if (priv->status & STATUS_HCMD_ACTIVE) { + IPW_ERROR("Failed to send %s: Already sending a command.\n", + get_cmd_string(cmd->cmd)); + spin_unlock_irqrestore(&priv->lock, flags); + return -EAGAIN; + } + + priv->status |= STATUS_HCMD_ACTIVE; + + if (priv->cmdlog) { + priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies; + priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd; + priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len; + memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param, + cmd->len); + priv->cmdlog[priv->cmdlog_pos].retcode = -1; + } + + IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n", + get_cmd_string(cmd->cmd), cmd->cmd, cmd->len, + priv->status); + +#ifndef DEBUG_CMD_WEP_KEY + if (cmd->cmd == IPW_CMD_WEP_KEY) + IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n"); + else +#endif + printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len); + + rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0); + if (rc) { + priv->status &= ~STATUS_HCMD_ACTIVE; + IPW_ERROR("Failed to send %s: Reason %d\n", + get_cmd_string(cmd->cmd), rc); + spin_unlock_irqrestore(&priv->lock, flags); + goto exit; + } + spin_unlock_irqrestore(&priv->lock, flags); + + now = jiffies; + end = now + HOST_COMPLETE_TIMEOUT; +again: + rc = wait_event_interruptible_timeout(priv->wait_command_queue, + !(priv-> + status & STATUS_HCMD_ACTIVE), + end - now); + if (rc < 0) { + now = jiffies; + if (time_before(now, end)) + goto again; + rc = 0; + } + + if (rc == 0) { + spin_lock_irqsave(&priv->lock, flags); + if (priv->status & STATUS_HCMD_ACTIVE) { + IPW_ERROR("Failed to send %s: Command timed out.\n", + get_cmd_string(cmd->cmd)); + priv->status &= ~STATUS_HCMD_ACTIVE; + spin_unlock_irqrestore(&priv->lock, flags); + rc = -EIO; + goto exit; + } + spin_unlock_irqrestore(&priv->lock, flags); + } else + rc = 0; + + if (priv->status & STATUS_RF_KILL_HW) { + IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n", + get_cmd_string(cmd->cmd)); + rc = -EIO; + goto exit; + } + + exit: + if (priv->cmdlog) { + priv->cmdlog[priv->cmdlog_pos++].retcode = rc; + priv->cmdlog_pos %= priv->cmdlog_len; + } + return rc; +} + +static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command) +{ + struct host_cmd cmd = { + .cmd = command, + }; + + return __ipw_send_cmd(priv, &cmd); +} + +static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len, + const void *data) +{ + struct host_cmd cmd = { + .cmd = command, + .len = len, + .param = data, + }; + + return __ipw_send_cmd(priv, &cmd); +} + +static int ipw_send_host_complete(struct ipw_priv *priv) +{ + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE); +} + +static int ipw_send_system_config(struct ipw_priv *priv) +{ + return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG, + sizeof(priv->sys_config), + &priv->sys_config); +} + +static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len) +{ + if (!priv || !ssid) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE), + ssid); +} + +static int ipw_send_adapter_address(struct ipw_priv *priv, const u8 * mac) +{ + if (!priv || !mac) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + IPW_DEBUG_INFO("%s: Setting MAC to %pM\n", + priv->net_dev->name, mac); + + return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac); +} + +static void ipw_adapter_restart(void *adapter) +{ + struct ipw_priv *priv = adapter; + + if (priv->status & STATUS_RF_KILL_MASK) + return; + + ipw_down(priv); + + if (priv->assoc_network && + (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS)) + ipw_remove_current_network(priv); + + if (ipw_up(priv)) { + IPW_ERROR("Failed to up device\n"); + return; + } +} + +static void ipw_bg_adapter_restart(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, adapter_restart); + mutex_lock(&priv->mutex); + ipw_adapter_restart(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_abort_scan(struct ipw_priv *priv); + +#define IPW_SCAN_CHECK_WATCHDOG (5 * HZ) + +static void ipw_scan_check(void *data) +{ + struct ipw_priv *priv = data; + + if (priv->status & STATUS_SCAN_ABORTING) { + IPW_DEBUG_SCAN("Scan completion watchdog resetting " + "adapter after (%dms).\n", + jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG)); + schedule_work(&priv->adapter_restart); + } else if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_SCAN("Scan completion watchdog aborting scan " + "after (%dms).\n", + jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG)); + ipw_abort_scan(priv); + schedule_delayed_work(&priv->scan_check, HZ); + } +} + +static void ipw_bg_scan_check(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, scan_check.work); + mutex_lock(&priv->mutex); + ipw_scan_check(priv); + mutex_unlock(&priv->mutex); +} + +static int ipw_send_scan_request_ext(struct ipw_priv *priv, + struct ipw_scan_request_ext *request) +{ + return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT, + sizeof(*request), request); +} + +static int ipw_send_scan_abort(struct ipw_priv *priv) +{ + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT); +} + +static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens) +{ + struct ipw_sensitivity_calib calib = { + .beacon_rssi_raw = cpu_to_le16(sens), + }; + + return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib), + &calib); +} + +static int ipw_send_associate(struct ipw_priv *priv, + struct ipw_associate *associate) +{ + if (!priv || !associate) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(*associate), + associate); +} + +static int ipw_send_supported_rates(struct ipw_priv *priv, + struct ipw_supported_rates *rates) +{ + if (!priv || !rates) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates), + rates); +} + +static int ipw_set_random_seed(struct ipw_priv *priv) +{ + u32 val; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + get_random_bytes(&val, sizeof(val)); + + return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val); +} + +static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off) +{ + __le32 v = cpu_to_le32(phy_off); + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(v), &v); +} + +static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power) +{ + if (!priv || !power) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power); +} + +static int ipw_set_tx_power(struct ipw_priv *priv) +{ + const struct libipw_geo *geo = libipw_get_geo(priv->ieee); + struct ipw_tx_power tx_power; + s8 max_power; + int i; + + memset(&tx_power, 0, sizeof(tx_power)); + + /* configure device for 'G' band */ + tx_power.ieee_mode = IPW_G_MODE; + tx_power.num_channels = geo->bg_channels; + for (i = 0; i < geo->bg_channels; i++) { + max_power = geo->bg[i].max_power; + tx_power.channels_tx_power[i].channel_number = + geo->bg[i].channel; + tx_power.channels_tx_power[i].tx_power = max_power ? + min(max_power, priv->tx_power) : priv->tx_power; + } + if (ipw_send_tx_power(priv, &tx_power)) + return -EIO; + + /* configure device to also handle 'B' band */ + tx_power.ieee_mode = IPW_B_MODE; + if (ipw_send_tx_power(priv, &tx_power)) + return -EIO; + + /* configure device to also handle 'A' band */ + if (priv->ieee->abg_true) { + tx_power.ieee_mode = IPW_A_MODE; + tx_power.num_channels = geo->a_channels; + for (i = 0; i < tx_power.num_channels; i++) { + max_power = geo->a[i].max_power; + tx_power.channels_tx_power[i].channel_number = + geo->a[i].channel; + tx_power.channels_tx_power[i].tx_power = max_power ? + min(max_power, priv->tx_power) : priv->tx_power; + } + if (ipw_send_tx_power(priv, &tx_power)) + return -EIO; + } + return 0; +} + +static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts) +{ + struct ipw_rts_threshold rts_threshold = { + .rts_threshold = cpu_to_le16(rts), + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD, + sizeof(rts_threshold), &rts_threshold); +} + +static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag) +{ + struct ipw_frag_threshold frag_threshold = { + .frag_threshold = cpu_to_le16(frag), + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD, + sizeof(frag_threshold), &frag_threshold); +} + +static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode) +{ + __le32 param; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + /* If on battery, set to 3, if AC set to CAM, else user + * level */ + switch (mode) { + case IPW_POWER_BATTERY: + param = cpu_to_le32(IPW_POWER_INDEX_3); + break; + case IPW_POWER_AC: + param = cpu_to_le32(IPW_POWER_MODE_CAM); + break; + default: + param = cpu_to_le32(mode); + break; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param), + ¶m); +} + +static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit) +{ + struct ipw_retry_limit retry_limit = { + .short_retry_limit = slimit, + .long_retry_limit = llimit + }; + + if (!priv) { + IPW_ERROR("Invalid args\n"); + return -1; + } + + return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit), + &retry_limit); +} + +/* + * The IPW device contains a Microwire compatible EEPROM that stores + * various data like the MAC address. Usually the firmware has exclusive + * access to the eeprom, but during device initialization (before the + * device driver has sent the HostComplete command to the firmware) the + * device driver has read access to the EEPROM by way of indirect addressing + * through a couple of memory mapped registers. + * + * The following is a simplified implementation for pulling data out of the + * eeprom, along with some helper functions to find information in + * the per device private data's copy of the eeprom. + * + * NOTE: To better understand how these functions work (i.e what is a chip + * select and why do have to keep driving the eeprom clock?), read + * just about any data sheet for a Microwire compatible EEPROM. + */ + +/* write a 32 bit value into the indirect accessor register */ +static inline void eeprom_write_reg(struct ipw_priv *p, u32 data) +{ + ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data); + + /* the eeprom requires some time to complete the operation */ + udelay(p->eeprom_delay); +} + +/* perform a chip select operation */ +static void eeprom_cs(struct ipw_priv *priv) +{ + eeprom_write_reg(priv, 0); + eeprom_write_reg(priv, EEPROM_BIT_CS); + eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK); + eeprom_write_reg(priv, EEPROM_BIT_CS); +} + +/* perform a chip select operation */ +static void eeprom_disable_cs(struct ipw_priv *priv) +{ + eeprom_write_reg(priv, EEPROM_BIT_CS); + eeprom_write_reg(priv, 0); + eeprom_write_reg(priv, EEPROM_BIT_SK); +} + +/* push a single bit down to the eeprom */ +static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit) +{ + int d = (bit ? EEPROM_BIT_DI : 0); + eeprom_write_reg(p, EEPROM_BIT_CS | d); + eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK); +} + +/* push an opcode followed by an address down to the eeprom */ +static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr) +{ + int i; + + eeprom_cs(priv); + eeprom_write_bit(priv, 1); + eeprom_write_bit(priv, op & 2); + eeprom_write_bit(priv, op & 1); + for (i = 7; i >= 0; i--) { + eeprom_write_bit(priv, addr & (1 << i)); + } +} + +/* pull 16 bits off the eeprom, one bit at a time */ +static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr) +{ + int i; + u16 r = 0; + + /* Send READ Opcode */ + eeprom_op(priv, EEPROM_CMD_READ, addr); + + /* Send dummy bit */ + eeprom_write_reg(priv, EEPROM_BIT_CS); + + /* Read the byte off the eeprom one bit at a time */ + for (i = 0; i < 16; i++) { + u32 data = 0; + eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK); + eeprom_write_reg(priv, EEPROM_BIT_CS); + data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS); + r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0); + } + + /* Send another dummy bit */ + eeprom_write_reg(priv, 0); + eeprom_disable_cs(priv); + + return r; +} + +/* helper function for pulling the mac address out of the private */ +/* data's copy of the eeprom data */ +static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac) +{ + memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], ETH_ALEN); +} + +static void ipw_read_eeprom(struct ipw_priv *priv) +{ + int i; + __le16 *eeprom = (__le16 *) priv->eeprom; + + IPW_DEBUG_TRACE(">>\n"); + + /* read entire contents of eeprom into private buffer */ + for (i = 0; i < 128; i++) + eeprom[i] = cpu_to_le16(eeprom_read_u16(priv, (u8) i)); + + IPW_DEBUG_TRACE("<<\n"); +} + +/* + * Either the device driver (i.e. the host) or the firmware can + * load eeprom data into the designated region in SRAM. If neither + * happens then the FW will shutdown with a fatal error. + * + * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE + * bit needs region of shared SRAM needs to be non-zero. + */ +static void ipw_eeprom_init_sram(struct ipw_priv *priv) +{ + int i; + + IPW_DEBUG_TRACE(">>\n"); + + /* + If the data looks correct, then copy it to our private + copy. Otherwise let the firmware know to perform the operation + on its own. + */ + if (priv->eeprom[EEPROM_VERSION] != 0) { + IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n"); + + /* write the eeprom data to sram */ + for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++) + ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]); + + /* Do not load eeprom data on fatal error or suspend */ + ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); + } else { + IPW_DEBUG_INFO("Enabling FW initialization of SRAM\n"); + + /* Load eeprom data on fatal error or suspend */ + ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1); + } + + IPW_DEBUG_TRACE("<<\n"); +} + +static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count) +{ + count >>= 2; + if (!count) + return; + _ipw_write32(priv, IPW_AUTOINC_ADDR, start); + while (count--) + _ipw_write32(priv, IPW_AUTOINC_DATA, 0); +} + +static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv) +{ + ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL, + CB_NUMBER_OF_ELEMENTS_SMALL * + sizeof(struct command_block)); +} + +static int ipw_fw_dma_enable(struct ipw_priv *priv) +{ /* start dma engine but no transfers yet */ + + IPW_DEBUG_FW(">> :\n"); + + /* Start the dma */ + ipw_fw_dma_reset_command_blocks(priv); + + /* Write CB base address */ + ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL); + + IPW_DEBUG_FW("<< :\n"); + return 0; +} + +static void ipw_fw_dma_abort(struct ipw_priv *priv) +{ + u32 control = 0; + + IPW_DEBUG_FW(">> :\n"); + + /* set the Stop and Abort bit */ + control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT; + ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); + priv->sram_desc.last_cb_index = 0; + + IPW_DEBUG_FW("<<\n"); +} + +static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index, + struct command_block *cb) +{ + u32 address = + IPW_SHARED_SRAM_DMA_CONTROL + + (sizeof(struct command_block) * index); + IPW_DEBUG_FW(">> :\n"); + + ipw_write_indirect(priv, address, (u8 *) cb, + (int)sizeof(struct command_block)); + + IPW_DEBUG_FW("<< :\n"); + return 0; + +} + +static int ipw_fw_dma_kick(struct ipw_priv *priv) +{ + u32 control = 0; + u32 index = 0; + + IPW_DEBUG_FW(">> :\n"); + + for (index = 0; index < priv->sram_desc.last_cb_index; index++) + ipw_fw_dma_write_command_block(priv, index, + &priv->sram_desc.cb_list[index]); + + /* Enable the DMA in the CSR register */ + ipw_clear_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED | + IPW_RESET_REG_STOP_MASTER); + + /* Set the Start bit. */ + control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START; + ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control); + + IPW_DEBUG_FW("<< :\n"); + return 0; +} + +static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv) +{ + u32 address; + u32 register_value = 0; + u32 cb_fields_address = 0; + + IPW_DEBUG_FW(">> :\n"); + address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB); + IPW_DEBUG_FW_INFO("Current CB is 0x%x\n", address); + + /* Read the DMA Controlor register */ + register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL); + IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x\n", register_value); + + /* Print the CB values */ + cb_fields_address = address; + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB Control Field is 0x%x\n", register_value); + + cb_fields_address += sizeof(u32); + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x\n", register_value); + + cb_fields_address += sizeof(u32); + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x\n", + register_value); + + cb_fields_address += sizeof(u32); + register_value = ipw_read_reg32(priv, cb_fields_address); + IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x\n", register_value); + + IPW_DEBUG_FW(">> :\n"); +} + +static int ipw_fw_dma_command_block_index(struct ipw_priv *priv) +{ + u32 current_cb_address = 0; + u32 current_cb_index = 0; + + IPW_DEBUG_FW("<< :\n"); + current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB); + + current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) / + sizeof(struct command_block); + + IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X\n", + current_cb_index, current_cb_address); + + IPW_DEBUG_FW(">> :\n"); + return current_cb_index; + +} + +static int ipw_fw_dma_add_command_block(struct ipw_priv *priv, + u32 src_address, + u32 dest_address, + u32 length, + int interrupt_enabled, int is_last) +{ + + u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC | + CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG | + CB_DEST_SIZE_LONG; + struct command_block *cb; + u32 last_cb_element = 0; + + IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n", + src_address, dest_address, length); + + if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL) + return -1; + + last_cb_element = priv->sram_desc.last_cb_index; + cb = &priv->sram_desc.cb_list[last_cb_element]; + priv->sram_desc.last_cb_index++; + + /* Calculate the new CB control word */ + if (interrupt_enabled) + control |= CB_INT_ENABLED; + + if (is_last) + control |= CB_LAST_VALID; + + control |= length; + + /* Calculate the CB Element's checksum value */ + cb->status = control ^ src_address ^ dest_address; + + /* Copy the Source and Destination addresses */ + cb->dest_addr = dest_address; + cb->source_addr = src_address; + + /* Copy the Control Word last */ + cb->control = control; + + return 0; +} + +static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address, + int nr, u32 dest_address, u32 len) +{ + int ret, i; + u32 size; + + IPW_DEBUG_FW(">>\n"); + IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n", + nr, dest_address, len); + + for (i = 0; i < nr; i++) { + size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH); + ret = ipw_fw_dma_add_command_block(priv, src_address[i], + dest_address + + i * CB_MAX_LENGTH, size, + 0, 0); + if (ret) { + IPW_DEBUG_FW_INFO(": Failed\n"); + return -1; + } else + IPW_DEBUG_FW_INFO(": Added new cb\n"); + } + + IPW_DEBUG_FW("<<\n"); + return 0; +} + +static int ipw_fw_dma_wait(struct ipw_priv *priv) +{ + u32 current_index = 0, previous_index; + u32 watchdog = 0; + + IPW_DEBUG_FW(">> :\n"); + + current_index = ipw_fw_dma_command_block_index(priv); + IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n", + (int)priv->sram_desc.last_cb_index); + + while (current_index < priv->sram_desc.last_cb_index) { + udelay(50); + previous_index = current_index; + current_index = ipw_fw_dma_command_block_index(priv); + + if (previous_index < current_index) { + watchdog = 0; + continue; + } + if (++watchdog > 400) { + IPW_DEBUG_FW_INFO("Timeout\n"); + ipw_fw_dma_dump_command_block(priv); + ipw_fw_dma_abort(priv); + return -1; + } + } + + ipw_fw_dma_abort(priv); + + /*Disable the DMA in the CSR register */ + ipw_set_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER); + + IPW_DEBUG_FW("<< dmaWaitSync\n"); + return 0; +} + +static void ipw_remove_current_network(struct ipw_priv *priv) +{ + struct list_head *element, *safe; + struct libipw_network *network = NULL; + unsigned long flags; + + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_safe(element, safe, &priv->ieee->network_list) { + network = list_entry(element, struct libipw_network, list); + if (ether_addr_equal(network->bssid, priv->bssid)) { + list_del(element); + list_add_tail(&network->list, + &priv->ieee->network_free_list); + } + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); +} + +/* + * Check that card is still alive. + * Reads debug register from domain0. + * If card is present, pre-defined value should + * be found there. + * + * @param priv + * @return 1 if card is present, 0 otherwise + */ +static inline int ipw_alive(struct ipw_priv *priv) +{ + return ipw_read32(priv, 0x90) == 0xd55555d5; +} + +/* timeout in msec, attempted in 10-msec quanta */ +static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask, + int timeout) +{ + int i = 0; + + do { + if ((ipw_read32(priv, addr) & mask) == mask) + return i; + mdelay(10); + i += 10; + } while (i < timeout); + + return -ETIME; +} + +/* These functions load the firmware and micro code for the operation of + * the ipw hardware. It assumes the buffer has all the bits for the + * image and the caller is handling the memory allocation and clean up. + */ + +static int ipw_stop_master(struct ipw_priv *priv) +{ + int rc; + + IPW_DEBUG_TRACE(">>\n"); + /* stop master. typical delay - 0 */ + ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); + + /* timeout is in msec, polled in 10-msec quanta */ + rc = ipw_poll_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED, 100); + if (rc < 0) { + IPW_ERROR("wait for stop master failed after 100ms\n"); + return -1; + } + + IPW_DEBUG_INFO("stop master %dms\n", rc); + + return rc; +} + +static void ipw_arc_release(struct ipw_priv *priv) +{ + IPW_DEBUG_TRACE(">>\n"); + mdelay(5); + + ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); + + /* no one knows timing, for safety add some delay */ + mdelay(5); +} + +struct fw_chunk { + __le32 address; + __le32 length; +}; + +static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len) +{ + int rc = 0, i, addr; + u8 cr = 0; + __le16 *image; + + image = (__le16 *) data; + + IPW_DEBUG_TRACE(">>\n"); + + rc = ipw_stop_master(priv); + + if (rc < 0) + return rc; + + for (addr = IPW_SHARED_LOWER_BOUND; + addr < IPW_REGISTER_DOMAIN1_END; addr += 4) { + ipw_write32(priv, addr, 0); + } + + /* no ucode (yet) */ + memset(&priv->dino_alive, 0, sizeof(priv->dino_alive)); + /* destroy DMA queues */ + /* reset sequence */ + + ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON); + ipw_arc_release(priv); + ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF); + mdelay(1); + + /* reset PHY */ + ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN); + mdelay(1); + + ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0); + mdelay(1); + + /* enable ucode store */ + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0); + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS); + mdelay(1); + + /* write ucode */ + /* + * @bug + * Do NOT set indirect address register once and then + * store data to indirect data register in the loop. + * It seems very reasonable, but in this case DINO do not + * accept ucode. It is essential to set address each time. + */ + /* load new ipw uCode */ + for (i = 0; i < len / 2; i++) + ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE, + le16_to_cpu(image[i])); + + /* enable DINO */ + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM); + + /* this is where the igx / win driver deveates from the VAP driver. */ + + /* wait for alive response */ + for (i = 0; i < 100; i++) { + /* poll for incoming data */ + cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS); + if (cr & DINO_RXFIFO_DATA) + break; + mdelay(1); + } + + if (cr & DINO_RXFIFO_DATA) { + /* alive_command_responce size is NOT multiple of 4 */ + __le32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4]; + + for (i = 0; i < ARRAY_SIZE(response_buffer); i++) + response_buffer[i] = + cpu_to_le32(ipw_read_reg32(priv, + IPW_BASEBAND_RX_FIFO_READ)); + memcpy(&priv->dino_alive, response_buffer, + sizeof(priv->dino_alive)); + if (priv->dino_alive.alive_command == 1 + && priv->dino_alive.ucode_valid == 1) { + rc = 0; + IPW_DEBUG_INFO + ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) " + "of %02d/%02d/%02d %02d:%02d\n", + priv->dino_alive.software_revision, + priv->dino_alive.software_revision, + priv->dino_alive.device_identifier, + priv->dino_alive.device_identifier, + priv->dino_alive.time_stamp[0], + priv->dino_alive.time_stamp[1], + priv->dino_alive.time_stamp[2], + priv->dino_alive.time_stamp[3], + priv->dino_alive.time_stamp[4]); + } else { + IPW_DEBUG_INFO("Microcode is not alive\n"); + rc = -EINVAL; + } + } else { + IPW_DEBUG_INFO("No alive response from DINO\n"); + rc = -ETIME; + } + + /* disable DINO, otherwise for some reason + firmware have problem getting alive resp. */ + ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0); + + return rc; +} + +static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len) +{ + int ret = -1; + int offset = 0; + struct fw_chunk *chunk; + int total_nr = 0; + int i; + struct dma_pool *pool; + void **virts; + dma_addr_t *phys; + + IPW_DEBUG_TRACE("<< :\n"); + + virts = kmalloc_array(CB_NUMBER_OF_ELEMENTS_SMALL, sizeof(void *), + GFP_KERNEL); + if (!virts) + return -ENOMEM; + + phys = kmalloc_array(CB_NUMBER_OF_ELEMENTS_SMALL, sizeof(dma_addr_t), + GFP_KERNEL); + if (!phys) { + kfree(virts); + return -ENOMEM; + } + pool = dma_pool_create("ipw2200", &priv->pci_dev->dev, CB_MAX_LENGTH, 0, + 0); + if (!pool) { + IPW_ERROR("dma_pool_create failed\n"); + kfree(phys); + kfree(virts); + return -ENOMEM; + } + + /* Start the Dma */ + ret = ipw_fw_dma_enable(priv); + + /* the DMA is already ready this would be a bug. */ + BUG_ON(priv->sram_desc.last_cb_index > 0); + + do { + u32 chunk_len; + u8 *start; + int size; + int nr = 0; + + chunk = (struct fw_chunk *)(data + offset); + offset += sizeof(struct fw_chunk); + chunk_len = le32_to_cpu(chunk->length); + start = data + offset; + + nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH; + for (i = 0; i < nr; i++) { + virts[total_nr] = dma_pool_alloc(pool, GFP_KERNEL, + &phys[total_nr]); + if (!virts[total_nr]) { + ret = -ENOMEM; + goto out; + } + size = min_t(u32, chunk_len - i * CB_MAX_LENGTH, + CB_MAX_LENGTH); + memcpy(virts[total_nr], start, size); + start += size; + total_nr++; + /* We don't support fw chunk larger than 64*8K */ + BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL); + } + + /* build DMA packet and queue up for sending */ + /* dma to chunk->address, the chunk->length bytes from data + + * offeset*/ + /* Dma loading */ + ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr], + nr, le32_to_cpu(chunk->address), + chunk_len); + if (ret) { + IPW_DEBUG_INFO("dmaAddBuffer Failed\n"); + goto out; + } + + offset += chunk_len; + } while (offset < len); + + /* Run the DMA and wait for the answer */ + ret = ipw_fw_dma_kick(priv); + if (ret) { + IPW_ERROR("dmaKick Failed\n"); + goto out; + } + + ret = ipw_fw_dma_wait(priv); + if (ret) { + IPW_ERROR("dmaWaitSync Failed\n"); + goto out; + } + out: + for (i = 0; i < total_nr; i++) + dma_pool_free(pool, virts[i], phys[i]); + + dma_pool_destroy(pool); + kfree(phys); + kfree(virts); + + return ret; +} + +/* stop nic */ +static int ipw_stop_nic(struct ipw_priv *priv) +{ + int rc = 0; + + /* stop */ + ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER); + + rc = ipw_poll_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED, 500); + if (rc < 0) { + IPW_ERROR("wait for reg master disabled failed after 500ms\n"); + return rc; + } + + ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET); + + return rc; +} + +static void ipw_start_nic(struct ipw_priv *priv) +{ + IPW_DEBUG_TRACE(">>\n"); + + /* prvHwStartNic release ARC */ + ipw_clear_bit(priv, IPW_RESET_REG, + IPW_RESET_REG_MASTER_DISABLED | + IPW_RESET_REG_STOP_MASTER | + CBD_RESET_REG_PRINCETON_RESET); + + /* enable power management */ + ipw_set_bit(priv, IPW_GP_CNTRL_RW, + IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY); + + IPW_DEBUG_TRACE("<<\n"); +} + +static int ipw_init_nic(struct ipw_priv *priv) +{ + int rc; + + IPW_DEBUG_TRACE(">>\n"); + /* reset */ + /*prvHwInitNic */ + /* set "initialization complete" bit to move adapter to D0 state */ + ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); + + /* low-level PLL activation */ + ipw_write32(priv, IPW_READ_INT_REGISTER, + IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER); + + /* wait for clock stabilization */ + rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW, + IPW_GP_CNTRL_BIT_CLOCK_READY, 250); + if (rc < 0) + IPW_DEBUG_INFO("FAILED wait for clock stablization\n"); + + /* assert SW reset */ + ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET); + + udelay(10); + + /* set "initialization complete" bit to move adapter to D0 state */ + ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE); + + IPW_DEBUG_TRACE(">>\n"); + return 0; +} + +/* Call this function from process context, it will sleep in request_firmware. + * Probe is an ok place to call this from. + */ +static int ipw_reset_nic(struct ipw_priv *priv) +{ + int rc = 0; + unsigned long flags; + + IPW_DEBUG_TRACE(">>\n"); + + rc = ipw_init_nic(priv); + + spin_lock_irqsave(&priv->lock, flags); + /* Clear the 'host command active' bit... */ + priv->status &= ~STATUS_HCMD_ACTIVE; + wake_up_interruptible(&priv->wait_command_queue); + priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); + wake_up_interruptible(&priv->wait_state); + spin_unlock_irqrestore(&priv->lock, flags); + + IPW_DEBUG_TRACE("<<\n"); + return rc; +} + + +struct ipw_fw { + __le32 ver; + __le32 boot_size; + __le32 ucode_size; + __le32 fw_size; + u8 data[]; +}; + +static int ipw_get_fw(struct ipw_priv *priv, + const struct firmware **raw, const char *name) +{ + struct ipw_fw *fw; + int rc; + + /* ask firmware_class module to get the boot firmware off disk */ + rc = request_firmware(raw, name, &priv->pci_dev->dev); + if (rc < 0) { + IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc); + return rc; + } + + if ((*raw)->size < sizeof(*fw)) { + IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size); + return -EINVAL; + } + + fw = (void *)(*raw)->data; + + if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) + + le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) { + IPW_ERROR("%s is too small or corrupt (%zd)\n", + name, (*raw)->size); + return -EINVAL; + } + + IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n", + name, + le32_to_cpu(fw->ver) >> 16, + le32_to_cpu(fw->ver) & 0xff, + (*raw)->size - sizeof(*fw)); + return 0; +} + +#define IPW_RX_BUF_SIZE (3000) + +static void ipw_rx_queue_reset(struct ipw_priv *priv, + struct ipw_rx_queue *rxq) +{ + unsigned long flags; + int i; + + spin_lock_irqsave(&rxq->lock, flags); + + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { + /* In the reset function, these buffers may have been allocated + * to an SKB, so we need to unmap and free potential storage */ + if (rxq->pool[i].skb != NULL) { + dma_unmap_single(&priv->pci_dev->dev, + rxq->pool[i].dma_addr, + IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); + dev_kfree_skb_irq(rxq->pool[i].skb); + rxq->pool[i].skb = NULL; + } + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + } + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->free_count = 0; + spin_unlock_irqrestore(&rxq->lock, flags); +} + +#ifdef CONFIG_PM +static int fw_loaded = 0; +static const struct firmware *raw = NULL; + +static void free_firmware(void) +{ + if (fw_loaded) { + release_firmware(raw); + raw = NULL; + fw_loaded = 0; + } +} +#else +#define free_firmware() do {} while (0) +#endif + +static int ipw_load(struct ipw_priv *priv) +{ +#ifndef CONFIG_PM + const struct firmware *raw = NULL; +#endif + struct ipw_fw *fw; + u8 *boot_img, *ucode_img, *fw_img; + u8 *name = NULL; + int rc = 0, retries = 3; + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + name = "ipw2200-ibss.fw"; + break; +#ifdef CONFIG_IPW2200_MONITOR + case IW_MODE_MONITOR: + name = "ipw2200-sniffer.fw"; + break; +#endif + case IW_MODE_INFRA: + name = "ipw2200-bss.fw"; + break; + } + + if (!name) { + rc = -EINVAL; + goto error; + } + +#ifdef CONFIG_PM + if (!fw_loaded) { +#endif + rc = ipw_get_fw(priv, &raw, name); + if (rc < 0) + goto error; +#ifdef CONFIG_PM + } +#endif + + fw = (void *)raw->data; + boot_img = &fw->data[0]; + ucode_img = &fw->data[le32_to_cpu(fw->boot_size)]; + fw_img = &fw->data[le32_to_cpu(fw->boot_size) + + le32_to_cpu(fw->ucode_size)]; + + if (!priv->rxq) + priv->rxq = ipw_rx_queue_alloc(priv); + else + ipw_rx_queue_reset(priv, priv->rxq); + if (!priv->rxq) { + IPW_ERROR("Unable to initialize Rx queue\n"); + rc = -ENOMEM; + goto error; + } + + retry: + /* Ensure interrupts are disabled */ + ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); + priv->status &= ~STATUS_INT_ENABLED; + + /* ack pending interrupts */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); + + ipw_stop_nic(priv); + + rc = ipw_reset_nic(priv); + if (rc < 0) { + IPW_ERROR("Unable to reset NIC\n"); + goto error; + } + + ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND, + IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND); + + /* DMA the initial boot firmware into the device */ + rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size)); + if (rc < 0) { + IPW_ERROR("Unable to load boot firmware: %d\n", rc); + goto error; + } + + /* kick start the device */ + ipw_start_nic(priv); + + /* wait for the device to finish its initial startup sequence */ + rc = ipw_poll_bit(priv, IPW_INTA_RW, + IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); + if (rc < 0) { + IPW_ERROR("device failed to boot initial fw image\n"); + goto error; + } + IPW_DEBUG_INFO("initial device response after %dms\n", rc); + + /* ack fw init done interrupt */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); + + /* DMA the ucode into the device */ + rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size)); + if (rc < 0) { + IPW_ERROR("Unable to load ucode: %d\n", rc); + goto error; + } + + /* stop nic */ + ipw_stop_nic(priv); + + /* DMA bss firmware into the device */ + rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size)); + if (rc < 0) { + IPW_ERROR("Unable to load firmware: %d\n", rc); + goto error; + } +#ifdef CONFIG_PM + fw_loaded = 1; +#endif + + ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0); + + rc = ipw_queue_reset(priv); + if (rc < 0) { + IPW_ERROR("Unable to initialize queues\n"); + goto error; + } + + /* Ensure interrupts are disabled */ + ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL); + /* ack pending interrupts */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); + + /* kick start the device */ + ipw_start_nic(priv); + + if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) { + if (retries > 0) { + IPW_WARNING("Parity error. Retrying init.\n"); + retries--; + goto retry; + } + + IPW_ERROR("TODO: Handle parity error -- schedule restart?\n"); + rc = -EIO; + goto error; + } + + /* wait for the device */ + rc = ipw_poll_bit(priv, IPW_INTA_RW, + IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500); + if (rc < 0) { + IPW_ERROR("device failed to start within 500ms\n"); + goto error; + } + IPW_DEBUG_INFO("device response after %dms\n", rc); + + /* ack fw init done interrupt */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE); + + /* read eeprom data */ + priv->eeprom_delay = 1; + ipw_read_eeprom(priv); + /* initialize the eeprom region of sram */ + ipw_eeprom_init_sram(priv); + + /* enable interrupts */ + ipw_enable_interrupts(priv); + + /* Ensure our queue has valid packets */ + ipw_rx_queue_replenish(priv); + + ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read); + + /* ack pending interrupts */ + ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL); + +#ifndef CONFIG_PM + release_firmware(raw); +#endif + return 0; + + error: + if (priv->rxq) { + ipw_rx_queue_free(priv, priv->rxq); + priv->rxq = NULL; + } + ipw_tx_queue_free(priv); + release_firmware(raw); +#ifdef CONFIG_PM + fw_loaded = 0; + raw = NULL; +#endif + + return rc; +} + +/* + * DMA services + * + * Theory of operation + * + * A queue is a circular buffers with 'Read' and 'Write' pointers. + * 2 empty entries always kept in the buffer to protect from overflow. + * + * For Tx queue, there are low mark and high mark limits. If, after queuing + * the packet for Tx, free space become < low mark, Tx queue stopped. When + * reclaiming packets (on 'tx done IRQ), if free space become > high mark, + * Tx queue resumed. + * + * The IPW operates with six queues, one receive queue in the device's + * sram, one transmit queue for sending commands to the device firmware, + * and four transmit queues for data. + * + * The four transmit queues allow for performing quality of service (qos) + * transmissions as per the 802.11 protocol. Currently Linux does not + * provide a mechanism to the user for utilizing prioritized queues, so + * we only utilize the first data transmit queue (queue1). + */ + +/* + * Driver allocates buffers of this size for Rx + */ + +/* + * ipw_rx_queue_space - Return number of free slots available in queue. + */ +static int ipw_rx_queue_space(const struct ipw_rx_queue *q) +{ + int s = q->read - q->write; + if (s <= 0) + s += RX_QUEUE_SIZE; + /* keep some buffer to not confuse full and empty queue */ + s -= 2; + if (s < 0) + s = 0; + return s; +} + +static inline int ipw_tx_queue_space(const struct clx2_queue *q) +{ + int s = q->last_used - q->first_empty; + if (s <= 0) + s += q->n_bd; + s -= 2; /* keep some reserve to not confuse empty and full situations */ + if (s < 0) + s = 0; + return s; +} + +static inline int ipw_queue_inc_wrap(int index, int n_bd) +{ + return (++index == n_bd) ? 0 : index; +} + +/* + * Initialize common DMA queue structure + * + * @param q queue to init + * @param count Number of BD's to allocate. Should be power of 2 + * @param read_register Address for 'read' register + * (not offset within BAR, full address) + * @param write_register Address for 'write' register + * (not offset within BAR, full address) + * @param base_register Address for 'base' register + * (not offset within BAR, full address) + * @param size Address for 'size' register + * (not offset within BAR, full address) + */ +static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q, + int count, u32 read, u32 write, u32 base, u32 size) +{ + q->n_bd = count; + + q->low_mark = q->n_bd / 4; + if (q->low_mark < 4) + q->low_mark = 4; + + q->high_mark = q->n_bd / 8; + if (q->high_mark < 2) + q->high_mark = 2; + + q->first_empty = q->last_used = 0; + q->reg_r = read; + q->reg_w = write; + + ipw_write32(priv, base, q->dma_addr); + ipw_write32(priv, size, count); + ipw_write32(priv, read, 0); + ipw_write32(priv, write, 0); + + _ipw_read32(priv, 0x90); +} + +static int ipw_queue_tx_init(struct ipw_priv *priv, + struct clx2_tx_queue *q, + int count, u32 read, u32 write, u32 base, u32 size) +{ + struct pci_dev *dev = priv->pci_dev; + + q->txb = kmalloc_array(count, sizeof(q->txb[0]), GFP_KERNEL); + if (!q->txb) + return -ENOMEM; + + q->bd = + dma_alloc_coherent(&dev->dev, sizeof(q->bd[0]) * count, + &q->q.dma_addr, GFP_KERNEL); + if (!q->bd) { + IPW_ERROR("dma_alloc_coherent(%zd) failed\n", + sizeof(q->bd[0]) * count); + kfree(q->txb); + q->txb = NULL; + return -ENOMEM; + } + + ipw_queue_init(priv, &q->q, count, read, write, base, size); + return 0; +} + +/* + * Free one TFD, those at index [txq->q.last_used]. + * Do NOT advance any indexes + * + * @param dev + * @param txq + */ +static void ipw_queue_tx_free_tfd(struct ipw_priv *priv, + struct clx2_tx_queue *txq) +{ + struct tfd_frame *bd = &txq->bd[txq->q.last_used]; + struct pci_dev *dev = priv->pci_dev; + int i; + + /* classify bd */ + if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE) + /* nothing to cleanup after for host commands */ + return; + + /* sanity check */ + if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) { + IPW_ERROR("Too many chunks: %i\n", + le32_to_cpu(bd->u.data.num_chunks)); + /* @todo issue fatal error, it is quite serious situation */ + return; + } + + /* unmap chunks if any */ + for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) { + dma_unmap_single(&dev->dev, + le32_to_cpu(bd->u.data.chunk_ptr[i]), + le16_to_cpu(bd->u.data.chunk_len[i]), + DMA_TO_DEVICE); + if (txq->txb[txq->q.last_used]) { + libipw_txb_free(txq->txb[txq->q.last_used]); + txq->txb[txq->q.last_used] = NULL; + } + } +} + +/* + * Deallocate DMA queue. + * + * Empty queue by removing and destroying all BD's. + * Free all buffers. + * + * @param dev + * @param q + */ +static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq) +{ + struct clx2_queue *q = &txq->q; + struct pci_dev *dev = priv->pci_dev; + + if (q->n_bd == 0) + return; + + /* first, empty all BD's */ + for (; q->first_empty != q->last_used; + q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { + ipw_queue_tx_free_tfd(priv, txq); + } + + /* free buffers belonging to queue itself */ + dma_free_coherent(&dev->dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd, + q->dma_addr); + kfree(txq->txb); + + /* 0 fill whole structure */ + memset(txq, 0, sizeof(*txq)); +} + +/* + * Destroy all DMA queues and structures + * + * @param priv + */ +static void ipw_tx_queue_free(struct ipw_priv *priv) +{ + /* Tx CMD queue */ + ipw_queue_tx_free(priv, &priv->txq_cmd); + + /* Tx queues */ + ipw_queue_tx_free(priv, &priv->txq[0]); + ipw_queue_tx_free(priv, &priv->txq[1]); + ipw_queue_tx_free(priv, &priv->txq[2]); + ipw_queue_tx_free(priv, &priv->txq[3]); +} + +static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid) +{ + /* First 3 bytes are manufacturer */ + bssid[0] = priv->mac_addr[0]; + bssid[1] = priv->mac_addr[1]; + bssid[2] = priv->mac_addr[2]; + + /* Last bytes are random */ + get_random_bytes(&bssid[3], ETH_ALEN - 3); + + bssid[0] &= 0xfe; /* clear multicast bit */ + bssid[0] |= 0x02; /* set local assignment bit (IEEE802) */ +} + +static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid) +{ + struct ipw_station_entry entry; + int i; + + for (i = 0; i < priv->num_stations; i++) { + if (ether_addr_equal(priv->stations[i], bssid)) { + /* Another node is active in network */ + priv->missed_adhoc_beacons = 0; + if (!(priv->config & CFG_STATIC_CHANNEL)) + /* when other nodes drop out, we drop out */ + priv->config &= ~CFG_ADHOC_PERSIST; + + return i; + } + } + + if (i == MAX_STATIONS) + return IPW_INVALID_STATION; + + IPW_DEBUG_SCAN("Adding AdHoc station: %pM\n", bssid); + + entry.reserved = 0; + entry.support_mode = 0; + memcpy(entry.mac_addr, bssid, ETH_ALEN); + memcpy(priv->stations[i], bssid, ETH_ALEN); + ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry), + &entry, sizeof(entry)); + priv->num_stations++; + + return i; +} + +static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid) +{ + int i; + + for (i = 0; i < priv->num_stations; i++) + if (ether_addr_equal(priv->stations[i], bssid)) + return i; + + return IPW_INVALID_STATION; +} + +static void ipw_send_disassociate(struct ipw_priv *priv, int quiet) +{ + int err; + + if (priv->status & STATUS_ASSOCIATING) { + IPW_DEBUG_ASSOC("Disassociating while associating.\n"); + schedule_work(&priv->disassociate); + return; + } + + if (!(priv->status & STATUS_ASSOCIATED)) { + IPW_DEBUG_ASSOC("Disassociating while not associated.\n"); + return; + } + + IPW_DEBUG_ASSOC("Disassociation attempt from %pM " + "on channel %d.\n", + priv->assoc_request.bssid, + priv->assoc_request.channel); + + priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED); + priv->status |= STATUS_DISASSOCIATING; + + if (quiet) + priv->assoc_request.assoc_type = HC_DISASSOC_QUIET; + else + priv->assoc_request.assoc_type = HC_DISASSOCIATE; + + err = ipw_send_associate(priv, &priv->assoc_request); + if (err) { + IPW_DEBUG_HC("Attempt to send [dis]associate command " + "failed.\n"); + return; + } + +} + +static int ipw_disassociate(void *data) +{ + struct ipw_priv *priv = data; + if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) + return 0; + ipw_send_disassociate(data, 0); + netif_carrier_off(priv->net_dev); + return 1; +} + +static void ipw_bg_disassociate(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, disassociate); + mutex_lock(&priv->mutex); + ipw_disassociate(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_system_config(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, system_config); + +#ifdef CONFIG_IPW2200_PROMISCUOUS + if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) { + priv->sys_config.accept_all_data_frames = 1; + priv->sys_config.accept_non_directed_frames = 1; + priv->sys_config.accept_all_mgmt_bcpr = 1; + priv->sys_config.accept_all_mgmt_frames = 1; + } +#endif + + ipw_send_system_config(priv); +} + +struct ipw_status_code { + u16 status; + const char *reason; +}; + +static const struct ipw_status_code ipw_status_codes[] = { + {0x00, "Successful"}, + {0x01, "Unspecified failure"}, + {0x0A, "Cannot support all requested capabilities in the " + "Capability information field"}, + {0x0B, "Reassociation denied due to inability to confirm that " + "association exists"}, + {0x0C, "Association denied due to reason outside the scope of this " + "standard"}, + {0x0D, + "Responding station does not support the specified authentication " + "algorithm"}, + {0x0E, + "Received an Authentication frame with authentication sequence " + "transaction sequence number out of expected sequence"}, + {0x0F, "Authentication rejected because of challenge failure"}, + {0x10, "Authentication rejected due to timeout waiting for next " + "frame in sequence"}, + {0x11, "Association denied because AP is unable to handle additional " + "associated stations"}, + {0x12, + "Association denied due to requesting station not supporting all " + "of the datarates in the BSSBasicServiceSet Parameter"}, + {0x13, + "Association denied due to requesting station not supporting " + "short preamble operation"}, + {0x14, + "Association denied due to requesting station not supporting " + "PBCC encoding"}, + {0x15, + "Association denied due to requesting station not supporting " + "channel agility"}, + {0x19, + "Association denied due to requesting station not supporting " + "short slot operation"}, + {0x1A, + "Association denied due to requesting station not supporting " + "DSSS-OFDM operation"}, + {0x28, "Invalid Information Element"}, + {0x29, "Group Cipher is not valid"}, + {0x2A, "Pairwise Cipher is not valid"}, + {0x2B, "AKMP is not valid"}, + {0x2C, "Unsupported RSN IE version"}, + {0x2D, "Invalid RSN IE Capabilities"}, + {0x2E, "Cipher suite is rejected per security policy"}, +}; + +static const char *ipw_get_status_code(u16 status) +{ + int i; + for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++) + if (ipw_status_codes[i].status == (status & 0xff)) + return ipw_status_codes[i].reason; + return "Unknown status value."; +} + +static inline void average_init(struct average *avg) +{ + memset(avg, 0, sizeof(*avg)); +} + +#define DEPTH_RSSI 8 +#define DEPTH_NOISE 16 +static s16 exponential_average(s16 prev_avg, s16 val, u8 depth) +{ + return ((depth-1)*prev_avg + val)/depth; +} + +static void average_add(struct average *avg, s16 val) +{ + avg->sum -= avg->entries[avg->pos]; + avg->sum += val; + avg->entries[avg->pos++] = val; + if (unlikely(avg->pos == AVG_ENTRIES)) { + avg->init = 1; + avg->pos = 0; + } +} + +static s16 average_value(struct average *avg) +{ + if (!unlikely(avg->init)) { + if (avg->pos) + return avg->sum / avg->pos; + return 0; + } + + return avg->sum / AVG_ENTRIES; +} + +static void ipw_reset_stats(struct ipw_priv *priv) +{ + u32 len = sizeof(u32); + + priv->quality = 0; + + average_init(&priv->average_missed_beacons); + priv->exp_avg_rssi = -60; + priv->exp_avg_noise = -85 + 0x100; + + priv->last_rate = 0; + priv->last_missed_beacons = 0; + priv->last_rx_packets = 0; + priv->last_tx_packets = 0; + priv->last_tx_failures = 0; + + /* Firmware managed, reset only when NIC is restarted, so we have to + * normalize on the current value */ + ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, + &priv->last_rx_err, &len); + ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, + &priv->last_tx_failures, &len); + + /* Driver managed, reset with each association */ + priv->missed_adhoc_beacons = 0; + priv->missed_beacons = 0; + priv->tx_packets = 0; + priv->rx_packets = 0; + +} + +static u32 ipw_get_max_rate(struct ipw_priv *priv) +{ + u32 i = 0x80000000; + u32 mask = priv->rates_mask; + /* If currently associated in B mode, restrict the maximum + * rate match to B rates */ + if (priv->assoc_request.ieee_mode == IPW_B_MODE) + mask &= LIBIPW_CCK_RATES_MASK; + + /* TODO: Verify that the rate is supported by the current rates + * list. */ + + while (i && !(mask & i)) + i >>= 1; + switch (i) { + case LIBIPW_CCK_RATE_1MB_MASK: + return 1000000; + case LIBIPW_CCK_RATE_2MB_MASK: + return 2000000; + case LIBIPW_CCK_RATE_5MB_MASK: + return 5500000; + case LIBIPW_OFDM_RATE_6MB_MASK: + return 6000000; + case LIBIPW_OFDM_RATE_9MB_MASK: + return 9000000; + case LIBIPW_CCK_RATE_11MB_MASK: + return 11000000; + case LIBIPW_OFDM_RATE_12MB_MASK: + return 12000000; + case LIBIPW_OFDM_RATE_18MB_MASK: + return 18000000; + case LIBIPW_OFDM_RATE_24MB_MASK: + return 24000000; + case LIBIPW_OFDM_RATE_36MB_MASK: + return 36000000; + case LIBIPW_OFDM_RATE_48MB_MASK: + return 48000000; + case LIBIPW_OFDM_RATE_54MB_MASK: + return 54000000; + } + + if (priv->ieee->mode == IEEE_B) + return 11000000; + else + return 54000000; +} + +static u32 ipw_get_current_rate(struct ipw_priv *priv) +{ + u32 rate, len = sizeof(rate); + int err; + + if (!(priv->status & STATUS_ASSOCIATED)) + return 0; + + if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) { + err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate, + &len); + if (err) { + IPW_DEBUG_INFO("failed querying ordinals.\n"); + return 0; + } + } else + return ipw_get_max_rate(priv); + + switch (rate) { + case IPW_TX_RATE_1MB: + return 1000000; + case IPW_TX_RATE_2MB: + return 2000000; + case IPW_TX_RATE_5MB: + return 5500000; + case IPW_TX_RATE_6MB: + return 6000000; + case IPW_TX_RATE_9MB: + return 9000000; + case IPW_TX_RATE_11MB: + return 11000000; + case IPW_TX_RATE_12MB: + return 12000000; + case IPW_TX_RATE_18MB: + return 18000000; + case IPW_TX_RATE_24MB: + return 24000000; + case IPW_TX_RATE_36MB: + return 36000000; + case IPW_TX_RATE_48MB: + return 48000000; + case IPW_TX_RATE_54MB: + return 54000000; + } + + return 0; +} + +#define IPW_STATS_INTERVAL (2 * HZ) +static void ipw_gather_stats(struct ipw_priv *priv) +{ + u32 rx_err, rx_err_delta, rx_packets_delta; + u32 tx_failures, tx_failures_delta, tx_packets_delta; + u32 missed_beacons_percent, missed_beacons_delta; + u32 quality = 0; + u32 len = sizeof(u32); + s16 rssi; + u32 beacon_quality, signal_quality, tx_quality, rx_quality, + rate_quality; + u32 max_rate; + + if (!(priv->status & STATUS_ASSOCIATED)) { + priv->quality = 0; + return; + } + + /* Update the statistics */ + ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS, + &priv->missed_beacons, &len); + missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons; + priv->last_missed_beacons = priv->missed_beacons; + if (priv->assoc_request.beacon_interval) { + missed_beacons_percent = missed_beacons_delta * + (HZ * le16_to_cpu(priv->assoc_request.beacon_interval)) / + (IPW_STATS_INTERVAL * 10); + } else { + missed_beacons_percent = 0; + } + average_add(&priv->average_missed_beacons, missed_beacons_percent); + + ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len); + rx_err_delta = rx_err - priv->last_rx_err; + priv->last_rx_err = rx_err; + + ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len); + tx_failures_delta = tx_failures - priv->last_tx_failures; + priv->last_tx_failures = tx_failures; + + rx_packets_delta = priv->rx_packets - priv->last_rx_packets; + priv->last_rx_packets = priv->rx_packets; + + tx_packets_delta = priv->tx_packets - priv->last_tx_packets; + priv->last_tx_packets = priv->tx_packets; + + /* Calculate quality based on the following: + * + * Missed beacon: 100% = 0, 0% = 70% missed + * Rate: 60% = 1Mbs, 100% = Max + * Rx and Tx errors represent a straight % of total Rx/Tx + * RSSI: 100% = > -50, 0% = < -80 + * Rx errors: 100% = 0, 0% = 50% missed + * + * The lowest computed quality is used. + * + */ +#define BEACON_THRESHOLD 5 + beacon_quality = 100 - missed_beacons_percent; + if (beacon_quality < BEACON_THRESHOLD) + beacon_quality = 0; + else + beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 / + (100 - BEACON_THRESHOLD); + IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n", + beacon_quality, missed_beacons_percent); + + priv->last_rate = ipw_get_current_rate(priv); + max_rate = ipw_get_max_rate(priv); + rate_quality = priv->last_rate * 40 / max_rate + 60; + IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n", + rate_quality, priv->last_rate / 1000000); + + if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta) + rx_quality = 100 - (rx_err_delta * 100) / + (rx_packets_delta + rx_err_delta); + else + rx_quality = 100; + IPW_DEBUG_STATS("Rx quality : %3d%% (%u errors, %u packets)\n", + rx_quality, rx_err_delta, rx_packets_delta); + + if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta) + tx_quality = 100 - (tx_failures_delta * 100) / + (tx_packets_delta + tx_failures_delta); + else + tx_quality = 100; + IPW_DEBUG_STATS("Tx quality : %3d%% (%u errors, %u packets)\n", + tx_quality, tx_failures_delta, tx_packets_delta); + + rssi = priv->exp_avg_rssi; + signal_quality = + (100 * + (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * + (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) - + (priv->ieee->perfect_rssi - rssi) * + (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) + + 62 * (priv->ieee->perfect_rssi - rssi))) / + ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) * + (priv->ieee->perfect_rssi - priv->ieee->worst_rssi)); + if (signal_quality > 100) + signal_quality = 100; + else if (signal_quality < 1) + signal_quality = 0; + + IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n", + signal_quality, rssi); + + quality = min(rx_quality, signal_quality); + quality = min(tx_quality, quality); + quality = min(rate_quality, quality); + quality = min(beacon_quality, quality); + if (quality == beacon_quality) + IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n", + quality); + if (quality == rate_quality) + IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n", + quality); + if (quality == tx_quality) + IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n", + quality); + if (quality == rx_quality) + IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n", + quality); + if (quality == signal_quality) + IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n", + quality); + + priv->quality = quality; + + schedule_delayed_work(&priv->gather_stats, IPW_STATS_INTERVAL); +} + +static void ipw_bg_gather_stats(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, gather_stats.work); + mutex_lock(&priv->mutex); + ipw_gather_stats(priv); + mutex_unlock(&priv->mutex); +} + +/* Missed beacon behavior: + * 1st missed -> roaming_threshold, just wait, don't do any scan/roam. + * roaming_threshold -> disassociate_threshold, scan and roam for better signal. + * Above disassociate threshold, give up and stop scanning. + * Roaming is disabled if disassociate_threshold <= roaming_threshold */ +static void ipw_handle_missed_beacon(struct ipw_priv *priv, + int missed_count) +{ + priv->notif_missed_beacons = missed_count; + + if (missed_count > priv->disassociate_threshold && + priv->status & STATUS_ASSOCIATED) { + /* If associated and we've hit the missed + * beacon threshold, disassociate, turn + * off roaming, and abort any active scans */ + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | + IPW_DL_STATE | IPW_DL_ASSOC, + "Missed beacon: %d - disassociate\n", missed_count); + priv->status &= ~STATUS_ROAMING; + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | + IPW_DL_STATE, + "Aborting scan with missed beacon.\n"); + schedule_work(&priv->abort_scan); + } + + schedule_work(&priv->disassociate); + return; + } + + if (priv->status & STATUS_ROAMING) { + /* If we are currently roaming, then just + * print a debug statement... */ + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "Missed beacon: %d - roam in progress\n", + missed_count); + return; + } + + if (roaming && + (missed_count > priv->roaming_threshold && + missed_count <= priv->disassociate_threshold)) { + /* If we are not already roaming, set the ROAM + * bit in the status and kick off a scan. + * This can happen several times before we reach + * disassociate_threshold. */ + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "Missed beacon: %d - initiate " + "roaming\n", missed_count); + if (!(priv->status & STATUS_ROAMING)) { + priv->status |= STATUS_ROAMING; + if (!(priv->status & STATUS_SCANNING)) + schedule_delayed_work(&priv->request_scan, 0); + } + return; + } + + if (priv->status & STATUS_SCANNING && + missed_count > IPW_MB_SCAN_CANCEL_THRESHOLD) { + /* Stop scan to keep fw from getting + * stuck (only if we aren't roaming -- + * otherwise we'll never scan more than 2 or 3 + * channels..) */ + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE, + "Aborting scan with missed beacon.\n"); + schedule_work(&priv->abort_scan); + } + + IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count); +} + +static void ipw_scan_event(struct work_struct *work) +{ + union iwreq_data wrqu; + + struct ipw_priv *priv = + container_of(work, struct ipw_priv, scan_event.work); + + wrqu.data.length = 0; + wrqu.data.flags = 0; + wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL); +} + +static void handle_scan_event(struct ipw_priv *priv) +{ + /* Only userspace-requested scan completion events go out immediately */ + if (!priv->user_requested_scan) { + schedule_delayed_work(&priv->scan_event, + round_jiffies_relative(msecs_to_jiffies(4000))); + } else { + priv->user_requested_scan = 0; + mod_delayed_work(system_wq, &priv->scan_event, 0); + } +} + +/* + * Handle host notification packet. + * Called from interrupt routine + */ +static void ipw_rx_notification(struct ipw_priv *priv, + struct ipw_rx_notification *notif) +{ + u16 size = le16_to_cpu(notif->size); + + IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, size); + + switch (notif->subtype) { + case HOST_NOTIFICATION_STATUS_ASSOCIATED:{ + struct notif_association *assoc = ¬if->u.assoc; + + switch (assoc->state) { + case CMAS_ASSOCIATED:{ + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, + "associated: '%*pE' %pM\n", + priv->essid_len, priv->essid, + priv->bssid); + + switch (priv->ieee->iw_mode) { + case IW_MODE_INFRA: + memcpy(priv->ieee->bssid, + priv->bssid, ETH_ALEN); + break; + + case IW_MODE_ADHOC: + memcpy(priv->ieee->bssid, + priv->bssid, ETH_ALEN); + + /* clear out the station table */ + priv->num_stations = 0; + + IPW_DEBUG_ASSOC + ("queueing adhoc check\n"); + schedule_delayed_work( + &priv->adhoc_check, + le16_to_cpu(priv-> + assoc_request. + beacon_interval)); + break; + } + + priv->status &= ~STATUS_ASSOCIATING; + priv->status |= STATUS_ASSOCIATED; + schedule_work(&priv->system_config); + +#ifdef CONFIG_IPW2200_QOS +#define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \ + le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_control)) + if ((priv->status & STATUS_AUTH) && + (IPW_GET_PACKET_STYPE(¬if->u.raw) + == IEEE80211_STYPE_ASSOC_RESP)) { + if ((sizeof + (struct + libipw_assoc_response) + <= size) + && (size <= 2314)) { + struct + libipw_rx_stats + stats = { + .len = size - 1, + }; + + IPW_DEBUG_QOS + ("QoS Associate " + "size %d\n", size); + libipw_rx_mgt(priv-> + ieee, + (struct + libipw_hdr_4addr + *) + ¬if->u.raw, &stats); + } + } +#endif + + schedule_work(&priv->link_up); + + break; + } + + case CMAS_AUTHENTICATED:{ + if (priv-> + status & (STATUS_ASSOCIATED | + STATUS_AUTH)) { + struct notif_authenticate *auth + = ¬if->u.auth; + IPW_DEBUG(IPW_DL_NOTIF | + IPW_DL_STATE | + IPW_DL_ASSOC, + "deauthenticated: '%*pE' %pM: (0x%04X) - %s\n", + priv->essid_len, + priv->essid, + priv->bssid, + le16_to_cpu(auth->status), + ipw_get_status_code + (le16_to_cpu + (auth->status))); + + priv->status &= + ~(STATUS_ASSOCIATING | + STATUS_AUTH | + STATUS_ASSOCIATED); + + schedule_work(&priv->link_down); + break; + } + + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, + "authenticated: '%*pE' %pM\n", + priv->essid_len, priv->essid, + priv->bssid); + break; + } + + case CMAS_INIT:{ + if (priv->status & STATUS_AUTH) { + struct + libipw_assoc_response + *resp; + resp = + (struct + libipw_assoc_response + *)¬if->u.raw; + IPW_DEBUG(IPW_DL_NOTIF | + IPW_DL_STATE | + IPW_DL_ASSOC, + "association failed (0x%04X): %s\n", + le16_to_cpu(resp->status), + ipw_get_status_code + (le16_to_cpu + (resp->status))); + } + + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, + "disassociated: '%*pE' %pM\n", + priv->essid_len, priv->essid, + priv->bssid); + + priv->status &= + ~(STATUS_DISASSOCIATING | + STATUS_ASSOCIATING | + STATUS_ASSOCIATED | STATUS_AUTH); + if (priv->assoc_network + && (priv->assoc_network-> + capability & + WLAN_CAPABILITY_IBSS)) + ipw_remove_current_network + (priv); + + schedule_work(&priv->link_down); + + break; + } + + case CMAS_RX_ASSOC_RESP: + break; + + default: + IPW_ERROR("assoc: unknown (%d)\n", + assoc->state); + break; + } + + break; + } + + case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{ + struct notif_authenticate *auth = ¬if->u.auth; + switch (auth->state) { + case CMAS_AUTHENTICATED: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "authenticated: '%*pE' %pM\n", + priv->essid_len, priv->essid, + priv->bssid); + priv->status |= STATUS_AUTH; + break; + + case CMAS_INIT: + if (priv->status & STATUS_AUTH) { + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, + "authentication failed (0x%04X): %s\n", + le16_to_cpu(auth->status), + ipw_get_status_code(le16_to_cpu + (auth-> + status))); + } + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, + "deauthenticated: '%*pE' %pM\n", + priv->essid_len, priv->essid, + priv->bssid); + + priv->status &= ~(STATUS_ASSOCIATING | + STATUS_AUTH | + STATUS_ASSOCIATED); + + schedule_work(&priv->link_down); + break; + + case CMAS_TX_AUTH_SEQ_1: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "AUTH_SEQ_1\n"); + break; + case CMAS_RX_AUTH_SEQ_2: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "AUTH_SEQ_2\n"); + break; + case CMAS_AUTH_SEQ_1_PASS: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n"); + break; + case CMAS_AUTH_SEQ_1_FAIL: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n"); + break; + case CMAS_TX_AUTH_SEQ_3: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "AUTH_SEQ_3\n"); + break; + case CMAS_RX_AUTH_SEQ_4: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n"); + break; + case CMAS_AUTH_SEQ_2_PASS: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n"); + break; + case CMAS_AUTH_SEQ_2_FAIL: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n"); + break; + case CMAS_TX_ASSOC: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "TX_ASSOC\n"); + break; + case CMAS_RX_ASSOC_RESP: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "RX_ASSOC_RESP\n"); + + break; + case CMAS_ASSOCIATED: + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | + IPW_DL_ASSOC, "ASSOCIATED\n"); + break; + default: + IPW_DEBUG_NOTIF("auth: failure - %d\n", + auth->state); + break; + } + break; + } + + case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{ + struct notif_channel_result *x = + ¬if->u.channel_result; + + if (size == sizeof(*x)) { + IPW_DEBUG_SCAN("Scan result for channel %d\n", + x->channel_num); + } else { + IPW_DEBUG_SCAN("Scan result of wrong size %d " + "(should be %zd)\n", + size, sizeof(*x)); + } + break; + } + + case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{ + struct notif_scan_complete *x = ¬if->u.scan_complete; + if (size == sizeof(*x)) { + IPW_DEBUG_SCAN + ("Scan completed: type %d, %d channels, " + "%d status\n", x->scan_type, + x->num_channels, x->status); + } else { + IPW_ERROR("Scan completed of wrong size %d " + "(should be %zd)\n", + size, sizeof(*x)); + } + + priv->status &= + ~(STATUS_SCANNING | STATUS_SCAN_ABORTING); + + wake_up_interruptible(&priv->wait_state); + cancel_delayed_work(&priv->scan_check); + + if (priv->status & STATUS_EXIT_PENDING) + break; + + priv->ieee->scans++; + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + priv->status |= STATUS_SCAN_FORCED; + schedule_delayed_work(&priv->request_scan, 0); + break; + } + priv->status &= ~STATUS_SCAN_FORCED; +#endif /* CONFIG_IPW2200_MONITOR */ + + /* Do queued direct scans first */ + if (priv->status & STATUS_DIRECT_SCAN_PENDING) + schedule_delayed_work(&priv->request_direct_scan, 0); + + if (!(priv->status & (STATUS_ASSOCIATED | + STATUS_ASSOCIATING | + STATUS_ROAMING | + STATUS_DISASSOCIATING))) + schedule_work(&priv->associate); + else if (priv->status & STATUS_ROAMING) { + if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) + /* If a scan completed and we are in roam mode, then + * the scan that completed was the one requested as a + * result of entering roam... so, schedule the + * roam work */ + schedule_work(&priv->roam); + else + /* Don't schedule if we aborted the scan */ + priv->status &= ~STATUS_ROAMING; + } else if (priv->status & STATUS_SCAN_PENDING) + schedule_delayed_work(&priv->request_scan, 0); + else if (priv->config & CFG_BACKGROUND_SCAN + && priv->status & STATUS_ASSOCIATED) + schedule_delayed_work(&priv->request_scan, + round_jiffies_relative(HZ)); + + /* Send an empty event to user space. + * We don't send the received data on the event because + * it would require us to do complex transcoding, and + * we want to minimise the work done in the irq handler + * Use a request to extract the data. + * Also, we generate this even for any scan, regardless + * on how the scan was initiated. User space can just + * sync on periodic scan to get fresh data... + * Jean II */ + if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) + handle_scan_event(priv); + break; + } + + case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{ + struct notif_frag_length *x = ¬if->u.frag_len; + + if (size == sizeof(*x)) + IPW_ERROR("Frag length: %d\n", + le16_to_cpu(x->frag_length)); + else + IPW_ERROR("Frag length of wrong size %d " + "(should be %zd)\n", + size, sizeof(*x)); + break; + } + + case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{ + struct notif_link_deterioration *x = + ¬if->u.link_deterioration; + + if (size == sizeof(*x)) { + IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE, + "link deterioration: type %d, cnt %d\n", + x->silence_notification_type, + x->silence_count); + memcpy(&priv->last_link_deterioration, x, + sizeof(*x)); + } else { + IPW_ERROR("Link Deterioration of wrong size %d " + "(should be %zd)\n", + size, sizeof(*x)); + } + break; + } + + case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{ + IPW_ERROR("Dino config\n"); + if (priv->hcmd + && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG) + IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n"); + + break; + } + + case HOST_NOTIFICATION_STATUS_BEACON_STATE:{ + struct notif_beacon_state *x = ¬if->u.beacon_state; + if (size != sizeof(*x)) { + IPW_ERROR + ("Beacon state of wrong size %d (should " + "be %zd)\n", size, sizeof(*x)); + break; + } + + if (le32_to_cpu(x->state) == + HOST_NOTIFICATION_STATUS_BEACON_MISSING) + ipw_handle_missed_beacon(priv, + le32_to_cpu(x-> + number)); + + break; + } + + case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{ + struct notif_tgi_tx_key *x = ¬if->u.tgi_tx_key; + if (size == sizeof(*x)) { + IPW_ERROR("TGi Tx Key: state 0x%02x sec type " + "0x%02x station %d\n", + x->key_state, x->security_type, + x->station_index); + break; + } + + IPW_ERROR + ("TGi Tx Key of wrong size %d (should be %zd)\n", + size, sizeof(*x)); + break; + } + + case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{ + struct notif_calibration *x = ¬if->u.calibration; + + if (size == sizeof(*x)) { + memcpy(&priv->calib, x, sizeof(*x)); + IPW_DEBUG_INFO("TODO: Calibration\n"); + break; + } + + IPW_ERROR + ("Calibration of wrong size %d (should be %zd)\n", + size, sizeof(*x)); + break; + } + + case HOST_NOTIFICATION_NOISE_STATS:{ + if (size == sizeof(u32)) { + priv->exp_avg_noise = + exponential_average(priv->exp_avg_noise, + (u8) (le32_to_cpu(notif->u.noise.value) & 0xff), + DEPTH_NOISE); + break; + } + + IPW_ERROR + ("Noise stat is wrong size %d (should be %zd)\n", + size, sizeof(u32)); + break; + } + + default: + IPW_DEBUG_NOTIF("Unknown notification: " + "subtype=%d,flags=0x%2x,size=%d\n", + notif->subtype, notif->flags, size); + } +} + +/* + * Destroys all DMA structures and initialise them again + * + * @param priv + * @return error code + */ +static int ipw_queue_reset(struct ipw_priv *priv) +{ + int rc = 0; + /* @todo customize queue sizes */ + int nTx = 64, nTxCmd = 8; + ipw_tx_queue_free(priv); + /* Tx CMD queue */ + rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd, + IPW_TX_CMD_QUEUE_READ_INDEX, + IPW_TX_CMD_QUEUE_WRITE_INDEX, + IPW_TX_CMD_QUEUE_BD_BASE, + IPW_TX_CMD_QUEUE_BD_SIZE); + if (rc) { + IPW_ERROR("Tx Cmd queue init failed\n"); + goto error; + } + /* Tx queue(s) */ + rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx, + IPW_TX_QUEUE_0_READ_INDEX, + IPW_TX_QUEUE_0_WRITE_INDEX, + IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 0 queue init failed\n"); + goto error; + } + rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx, + IPW_TX_QUEUE_1_READ_INDEX, + IPW_TX_QUEUE_1_WRITE_INDEX, + IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 1 queue init failed\n"); + goto error; + } + rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx, + IPW_TX_QUEUE_2_READ_INDEX, + IPW_TX_QUEUE_2_WRITE_INDEX, + IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 2 queue init failed\n"); + goto error; + } + rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx, + IPW_TX_QUEUE_3_READ_INDEX, + IPW_TX_QUEUE_3_WRITE_INDEX, + IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE); + if (rc) { + IPW_ERROR("Tx 3 queue init failed\n"); + goto error; + } + /* statistics */ + priv->rx_bufs_min = 0; + priv->rx_pend_max = 0; + return rc; + + error: + ipw_tx_queue_free(priv); + return rc; +} + +/* + * Reclaim Tx queue entries no more used by NIC. + * + * When FW advances 'R' index, all entries between old and + * new 'R' index need to be reclaimed. As result, some free space + * forms. If there is enough free space (> low mark), wake Tx queue. + * + * @note Need to protect against garbage in 'R' index + * @param priv + * @param txq + * @param qindex + * @return Number of used entries remains in the queue + */ +static int ipw_queue_tx_reclaim(struct ipw_priv *priv, + struct clx2_tx_queue *txq, int qindex) +{ + u32 hw_tail; + int used; + struct clx2_queue *q = &txq->q; + + hw_tail = ipw_read32(priv, q->reg_r); + if (hw_tail >= q->n_bd) { + IPW_ERROR + ("Read index for DMA queue (%d) is out of range [0-%d)\n", + hw_tail, q->n_bd); + goto done; + } + for (; q->last_used != hw_tail; + q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) { + ipw_queue_tx_free_tfd(priv, txq); + priv->tx_packets++; + } + done: + if ((ipw_tx_queue_space(q) > q->low_mark) && + (qindex >= 0)) + netif_wake_queue(priv->net_dev); + used = q->first_empty - q->last_used; + if (used < 0) + used += q->n_bd; + + return used; +} + +static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, const void *buf, + int len, int sync) +{ + struct clx2_tx_queue *txq = &priv->txq_cmd; + struct clx2_queue *q = &txq->q; + struct tfd_frame *tfd; + + if (ipw_tx_queue_space(q) < (sync ? 1 : 2)) { + IPW_ERROR("No space for Tx\n"); + return -EBUSY; + } + + tfd = &txq->bd[q->first_empty]; + txq->txb[q->first_empty] = NULL; + + memset(tfd, 0, sizeof(*tfd)); + tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE; + tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; + priv->hcmd_seq++; + tfd->u.cmd.index = hcmd; + tfd->u.cmd.length = len; + memcpy(tfd->u.cmd.payload, buf, len); + q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); + ipw_write32(priv, q->reg_w, q->first_empty); + _ipw_read32(priv, 0x90); + + return 0; +} + +/* + * Rx theory of operation + * + * The host allocates 32 DMA target addresses and passes the host address + * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is + * 0 to 31 + * + * Rx Queue Indexes + * The host/firmware share two index registers for managing the Rx buffers. + * + * The READ index maps to the first position that the firmware may be writing + * to -- the driver can read up to (but not including) this position and get + * good data. + * The READ index is managed by the firmware once the card is enabled. + * + * The WRITE index maps to the last position the driver has read from -- the + * position preceding WRITE is the last slot the firmware can place a packet. + * + * The queue is empty (no good data) if WRITE = READ - 1, and is full if + * WRITE = READ. + * + * During initialization the host sets up the READ queue position to the first + * INDEX position, and WRITE to the last (READ - 1 wrapped) + * + * When the firmware places a packet in a buffer it will advance the READ index + * and fire the RX interrupt. The driver can then query the READ index and + * process as many packets as possible, moving the WRITE index forward as it + * resets the Rx queue buffers with new memory. + * + * The management in the driver is as follows: + * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When + * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled + * to replensish the ipw->rxq->rx_free. + * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the + * ipw->rxq is replenished and the READ INDEX is updated (updating the + * 'processed' and 'read' driver indexes as well) + * + A received packet is processed and handed to the kernel network stack, + * detached from the ipw->rxq. The driver 'processed' index is updated. + * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free + * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ + * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there + * were enough free buffers and RX_STALLED is set it is cleared. + * + * + * Driver sequence: + * + * ipw_rx_queue_alloc() Allocates rx_free + * ipw_rx_queue_replenish() Replenishes rx_free list from rx_used, and calls + * ipw_rx_queue_restock + * ipw_rx_queue_restock() Moves available buffers from rx_free into Rx + * queue, updates firmware pointers, and updates + * the WRITE index. If insufficient rx_free buffers + * are available, schedules ipw_rx_queue_replenish + * + * -- enable interrupts -- + * ISR - ipw_rx() Detach ipw_rx_mem_buffers from pool up to the + * READ INDEX, detaching the SKB from the pool. + * Moves the packet buffer from queue to rx_used. + * Calls ipw_rx_queue_restock to refill any empty + * slots. + * ... + * + */ + +/* + * If there are slots in the RX queue that need to be restocked, + * and we have free pre-allocated buffers, fill the ranks as much + * as we can pulling from rx_free. + * + * This moves the 'write' index forward to catch up with 'processed', and + * also updates the memory address in the firmware to reference the new + * target buffer. + */ +static void ipw_rx_queue_restock(struct ipw_priv *priv) +{ + struct ipw_rx_queue *rxq = priv->rxq; + struct list_head *element; + struct ipw_rx_mem_buffer *rxb; + unsigned long flags; + int write; + + spin_lock_irqsave(&rxq->lock, flags); + write = rxq->write; + while ((ipw_rx_queue_space(rxq) > 0) && (rxq->free_count)) { + element = rxq->rx_free.next; + rxb = list_entry(element, struct ipw_rx_mem_buffer, list); + list_del(element); + + ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE, + rxb->dma_addr); + rxq->queue[rxq->write] = rxb; + rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE; + rxq->free_count--; + } + spin_unlock_irqrestore(&rxq->lock, flags); + + /* If the pre-allocated buffer pool is dropping low, schedule to + * refill it */ + if (rxq->free_count <= RX_LOW_WATERMARK) + schedule_work(&priv->rx_replenish); + + /* If we've added more space for the firmware to place data, tell it */ + if (write != rxq->write) + ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write); +} + +/* + * Move all used packet from rx_used to rx_free, allocating a new SKB for each. + * Also restock the Rx queue via ipw_rx_queue_restock. + * + * This is called as a scheduled work item (except for during initialization) + */ +static void ipw_rx_queue_replenish(void *data) +{ + struct ipw_priv *priv = data; + struct ipw_rx_queue *rxq = priv->rxq; + struct list_head *element; + struct ipw_rx_mem_buffer *rxb; + unsigned long flags; + + spin_lock_irqsave(&rxq->lock, flags); + while (!list_empty(&rxq->rx_used)) { + element = rxq->rx_used.next; + rxb = list_entry(element, struct ipw_rx_mem_buffer, list); + rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC); + if (!rxb->skb) { + printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n", + priv->net_dev->name); + /* We don't reschedule replenish work here -- we will + * call the restock method and if it still needs + * more buffers it will schedule replenish */ + break; + } + list_del(element); + + rxb->dma_addr = + dma_map_single(&priv->pci_dev->dev, rxb->skb->data, + IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); + + list_add_tail(&rxb->list, &rxq->rx_free); + rxq->free_count++; + } + spin_unlock_irqrestore(&rxq->lock, flags); + + ipw_rx_queue_restock(priv); +} + +static void ipw_bg_rx_queue_replenish(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, rx_replenish); + mutex_lock(&priv->mutex); + ipw_rx_queue_replenish(priv); + mutex_unlock(&priv->mutex); +} + +/* Assumes that the skb field of the buffers in 'pool' is kept accurate. + * If an SKB has been detached, the POOL needs to have its SKB set to NULL + * This free routine walks the list of POOL entries and if SKB is set to + * non NULL it is unmapped and freed + */ +static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq) +{ + int i; + + if (!rxq) + return; + + for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { + if (rxq->pool[i].skb != NULL) { + dma_unmap_single(&priv->pci_dev->dev, + rxq->pool[i].dma_addr, + IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); + dev_kfree_skb(rxq->pool[i].skb); + } + } + + kfree(rxq); +} + +static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv) +{ + struct ipw_rx_queue *rxq; + int i; + + rxq = kzalloc(sizeof(*rxq), GFP_KERNEL); + if (unlikely(!rxq)) { + IPW_ERROR("memory allocation failed\n"); + return NULL; + } + spin_lock_init(&rxq->lock); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->free_count = 0; + + return rxq; +} + +static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate) +{ + rate &= ~LIBIPW_BASIC_RATE_MASK; + if (ieee_mode == IEEE_A) { + switch (rate) { + case LIBIPW_OFDM_RATE_6MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? + 1 : 0; + case LIBIPW_OFDM_RATE_9MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? + 1 : 0; + case LIBIPW_OFDM_RATE_12MB: + return priv-> + rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_18MB: + return priv-> + rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_24MB: + return priv-> + rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_36MB: + return priv-> + rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_48MB: + return priv-> + rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_54MB: + return priv-> + rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0; + default: + return 0; + } + } + + /* B and G mixed */ + switch (rate) { + case LIBIPW_CCK_RATE_1MB: + return priv->rates_mask & LIBIPW_CCK_RATE_1MB_MASK ? 1 : 0; + case LIBIPW_CCK_RATE_2MB: + return priv->rates_mask & LIBIPW_CCK_RATE_2MB_MASK ? 1 : 0; + case LIBIPW_CCK_RATE_5MB: + return priv->rates_mask & LIBIPW_CCK_RATE_5MB_MASK ? 1 : 0; + case LIBIPW_CCK_RATE_11MB: + return priv->rates_mask & LIBIPW_CCK_RATE_11MB_MASK ? 1 : 0; + } + + /* If we are limited to B modulations, bail at this point */ + if (ieee_mode == IEEE_B) + return 0; + + /* G */ + switch (rate) { + case LIBIPW_OFDM_RATE_6MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_6MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_9MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_9MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_12MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_12MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_18MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_18MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_24MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_24MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_36MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_36MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_48MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_48MB_MASK ? 1 : 0; + case LIBIPW_OFDM_RATE_54MB: + return priv->rates_mask & LIBIPW_OFDM_RATE_54MB_MASK ? 1 : 0; + } + + return 0; +} + +static int ipw_compatible_rates(struct ipw_priv *priv, + const struct libipw_network *network, + struct ipw_supported_rates *rates) +{ + int num_rates, i; + + memset(rates, 0, sizeof(*rates)); + num_rates = min(network->rates_len, (u8) IPW_MAX_RATES); + rates->num_rates = 0; + for (i = 0; i < num_rates; i++) { + if (!ipw_is_rate_in_mask(priv, network->mode, + network->rates[i])) { + + if (network->rates[i] & LIBIPW_BASIC_RATE_MASK) { + IPW_DEBUG_SCAN("Adding masked mandatory " + "rate %02X\n", + network->rates[i]); + rates->supported_rates[rates->num_rates++] = + network->rates[i]; + continue; + } + + IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", + network->rates[i], priv->rates_mask); + continue; + } + + rates->supported_rates[rates->num_rates++] = network->rates[i]; + } + + num_rates = min(network->rates_ex_len, + (u8) (IPW_MAX_RATES - num_rates)); + for (i = 0; i < num_rates; i++) { + if (!ipw_is_rate_in_mask(priv, network->mode, + network->rates_ex[i])) { + if (network->rates_ex[i] & LIBIPW_BASIC_RATE_MASK) { + IPW_DEBUG_SCAN("Adding masked mandatory " + "rate %02X\n", + network->rates_ex[i]); + rates->supported_rates[rates->num_rates++] = + network->rates[i]; + continue; + } + + IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n", + network->rates_ex[i], priv->rates_mask); + continue; + } + + rates->supported_rates[rates->num_rates++] = + network->rates_ex[i]; + } + + return 1; +} + +static void ipw_copy_rates(struct ipw_supported_rates *dest, + const struct ipw_supported_rates *src) +{ + u8 i; + for (i = 0; i < src->num_rates; i++) + dest->supported_rates[i] = src->supported_rates[i]; + dest->num_rates = src->num_rates; +} + +/* TODO: Look at sniffed packets in the air to determine if the basic rate + * mask should ever be used -- right now all callers to add the scan rates are + * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */ +static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates, + u8 modulation, u32 rate_mask) +{ + u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ? + LIBIPW_BASIC_RATE_MASK : 0; + + if (rate_mask & LIBIPW_CCK_RATE_1MB_MASK) + rates->supported_rates[rates->num_rates++] = + LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_1MB; + + if (rate_mask & LIBIPW_CCK_RATE_2MB_MASK) + rates->supported_rates[rates->num_rates++] = + LIBIPW_BASIC_RATE_MASK | LIBIPW_CCK_RATE_2MB; + + if (rate_mask & LIBIPW_CCK_RATE_5MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + LIBIPW_CCK_RATE_5MB; + + if (rate_mask & LIBIPW_CCK_RATE_11MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + LIBIPW_CCK_RATE_11MB; +} + +static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates, + u8 modulation, u32 rate_mask) +{ + u8 basic_mask = (LIBIPW_OFDM_MODULATION == modulation) ? + LIBIPW_BASIC_RATE_MASK : 0; + + if (rate_mask & LIBIPW_OFDM_RATE_6MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + LIBIPW_OFDM_RATE_6MB; + + if (rate_mask & LIBIPW_OFDM_RATE_9MB_MASK) + rates->supported_rates[rates->num_rates++] = + LIBIPW_OFDM_RATE_9MB; + + if (rate_mask & LIBIPW_OFDM_RATE_12MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + LIBIPW_OFDM_RATE_12MB; + + if (rate_mask & LIBIPW_OFDM_RATE_18MB_MASK) + rates->supported_rates[rates->num_rates++] = + LIBIPW_OFDM_RATE_18MB; + + if (rate_mask & LIBIPW_OFDM_RATE_24MB_MASK) + rates->supported_rates[rates->num_rates++] = basic_mask | + LIBIPW_OFDM_RATE_24MB; + + if (rate_mask & LIBIPW_OFDM_RATE_36MB_MASK) + rates->supported_rates[rates->num_rates++] = + LIBIPW_OFDM_RATE_36MB; + + if (rate_mask & LIBIPW_OFDM_RATE_48MB_MASK) + rates->supported_rates[rates->num_rates++] = + LIBIPW_OFDM_RATE_48MB; + + if (rate_mask & LIBIPW_OFDM_RATE_54MB_MASK) + rates->supported_rates[rates->num_rates++] = + LIBIPW_OFDM_RATE_54MB; +} + +struct ipw_network_match { + struct libipw_network *network; + struct ipw_supported_rates rates; +}; + +static int ipw_find_adhoc_network(struct ipw_priv *priv, + struct ipw_network_match *match, + struct libipw_network *network, + int roaming) +{ + struct ipw_supported_rates rates; + + /* Verify that this network's capability is compatible with the + * current mode (AdHoc or Infrastructure) */ + if ((priv->ieee->iw_mode == IW_MODE_ADHOC && + !(network->capability & WLAN_CAPABILITY_IBSS))) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded due to capability mismatch.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + if (unlikely(roaming)) { + /* If we are roaming, then ensure check if this is a valid + * network to try and roam to */ + if ((network->ssid_len != match->network->ssid_len) || + memcmp(network->ssid, match->network->ssid, + network->ssid_len)) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of non-network ESSID.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + } else { + /* If an ESSID has been configured then compare the broadcast + * ESSID to ours */ + if ((priv->config & CFG_STATIC_ESSID) && + ((network->ssid_len != priv->essid_len) || + memcmp(network->ssid, priv->essid, + min(network->ssid_len, priv->essid_len)))) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n", + network->ssid_len, network->ssid, + network->bssid, priv->essid_len, + priv->essid); + return 0; + } + } + + /* If the old network rate is better than this one, don't bother + * testing everything else. */ + + if (network->time_stamp[0] < match->network->time_stamp[0]) { + IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n", + match->network->ssid_len, match->network->ssid); + return 0; + } else if (network->time_stamp[1] < match->network->time_stamp[1]) { + IPW_DEBUG_MERGE("Network '%*pE excluded because newer than current network.\n", + match->network->ssid_len, match->network->ssid); + return 0; + } + + /* Now go through and see if the requested network is valid... */ + if (priv->ieee->scan_age != 0 && + time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of age: %ums.\n", + network->ssid_len, network->ssid, + network->bssid, + jiffies_to_msecs(jiffies - + network->last_scanned)); + return 0; + } + + if ((priv->config & CFG_STATIC_CHANNEL) && + (network->channel != priv->channel)) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n", + network->ssid_len, network->ssid, + network->bssid, + network->channel, priv->channel); + return 0; + } + + /* Verify privacy compatibility */ + if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != + ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n", + network->ssid_len, network->ssid, + network->bssid, + priv-> + capability & CAP_PRIVACY_ON ? "on" : "off", + network-> + capability & WLAN_CAPABILITY_PRIVACY ? "on" : + "off"); + return 0; + } + + if (ether_addr_equal(network->bssid, priv->bssid)) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of the same BSSID match: %pM.\n", + network->ssid_len, network->ssid, + network->bssid, priv->bssid); + return 0; + } + + /* Filter out any incompatible freq / mode combinations */ + if (!libipw_is_valid_mode(priv->ieee, network->mode)) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + /* Ensure that the rates supported by the driver are compatible with + * this AP, including verification of basic rates (mandatory) */ + if (!ipw_compatible_rates(priv, network, &rates)) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + if (rates.num_rates == 0) { + IPW_DEBUG_MERGE("Network '%*pE (%pM)' excluded because of no compatible rates.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + /* TODO: Perform any further minimal comparititive tests. We do not + * want to put too much policy logic here; intelligent scan selection + * should occur within a generic IEEE 802.11 user space tool. */ + + /* Set up 'new' AP to this network */ + ipw_copy_rates(&match->rates, &rates); + match->network = network; + IPW_DEBUG_MERGE("Network '%*pE (%pM)' is a viable match.\n", + network->ssid_len, network->ssid, network->bssid); + + return 1; +} + +static void ipw_merge_adhoc_network(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, merge_networks); + struct libipw_network *network = NULL; + struct ipw_network_match match = { + .network = priv->assoc_network + }; + + if ((priv->status & STATUS_ASSOCIATED) && + (priv->ieee->iw_mode == IW_MODE_ADHOC)) { + /* First pass through ROAM process -- look for a better + * network */ + unsigned long flags; + + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_entry(network, &priv->ieee->network_list, list) { + if (network != priv->assoc_network) + ipw_find_adhoc_network(priv, &match, network, + 1); + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + if (match.network == priv->assoc_network) { + IPW_DEBUG_MERGE("No better ADHOC in this network to " + "merge to.\n"); + return; + } + + mutex_lock(&priv->mutex); + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + IPW_DEBUG_MERGE("remove network %*pE\n", + priv->essid_len, priv->essid); + ipw_remove_current_network(priv); + } + + ipw_disassociate(priv); + priv->assoc_network = match.network; + mutex_unlock(&priv->mutex); + return; + } +} + +static int ipw_best_network(struct ipw_priv *priv, + struct ipw_network_match *match, + struct libipw_network *network, int roaming) +{ + struct ipw_supported_rates rates; + + /* Verify that this network's capability is compatible with the + * current mode (AdHoc or Infrastructure) */ + if ((priv->ieee->iw_mode == IW_MODE_INFRA && + !(network->capability & WLAN_CAPABILITY_ESS)) || + (priv->ieee->iw_mode == IW_MODE_ADHOC && + !(network->capability & WLAN_CAPABILITY_IBSS))) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded due to capability mismatch.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + if (unlikely(roaming)) { + /* If we are roaming, then ensure check if this is a valid + * network to try and roam to */ + if ((network->ssid_len != match->network->ssid_len) || + memcmp(network->ssid, match->network->ssid, + network->ssid_len)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of non-network ESSID.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + } else { + /* If an ESSID has been configured then compare the broadcast + * ESSID to ours */ + if ((priv->config & CFG_STATIC_ESSID) && + ((network->ssid_len != priv->essid_len) || + memcmp(network->ssid, priv->essid, + min(network->ssid_len, priv->essid_len)))) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of ESSID mismatch: '%*pE'.\n", + network->ssid_len, network->ssid, + network->bssid, priv->essid_len, + priv->essid); + return 0; + } + } + + /* If the old network rate is better than this one, don't bother + * testing everything else. */ + if (match->network && match->network->stats.rssi > network->stats.rssi) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because '%*pE (%pM)' has a stronger signal.\n", + network->ssid_len, network->ssid, + network->bssid, match->network->ssid_len, + match->network->ssid, match->network->bssid); + return 0; + } + + /* If this network has already had an association attempt within the + * last 3 seconds, do not try and associate again... */ + if (network->last_associate && + time_after(network->last_associate + (HZ * 3UL), jiffies)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of storming (%ums since last assoc attempt).\n", + network->ssid_len, network->ssid, + network->bssid, + jiffies_to_msecs(jiffies - + network->last_associate)); + return 0; + } + + /* Now go through and see if the requested network is valid... */ + if (priv->ieee->scan_age != 0 && + time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of age: %ums.\n", + network->ssid_len, network->ssid, + network->bssid, + jiffies_to_msecs(jiffies - + network->last_scanned)); + return 0; + } + + if ((priv->config & CFG_STATIC_CHANNEL) && + (network->channel != priv->channel)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of channel mismatch: %d != %d.\n", + network->ssid_len, network->ssid, + network->bssid, + network->channel, priv->channel); + return 0; + } + + /* Verify privacy compatibility */ + if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) != + ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of privacy mismatch: %s != %s.\n", + network->ssid_len, network->ssid, + network->bssid, + priv->capability & CAP_PRIVACY_ON ? "on" : + "off", + network->capability & + WLAN_CAPABILITY_PRIVACY ? "on" : "off"); + return 0; + } + + if ((priv->config & CFG_STATIC_BSSID) && + !ether_addr_equal(network->bssid, priv->bssid)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of BSSID mismatch: %pM.\n", + network->ssid_len, network->ssid, + network->bssid, priv->bssid); + return 0; + } + + /* Filter out any incompatible freq / mode combinations */ + if (!libipw_is_valid_mode(priv->ieee, network->mode)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid frequency/mode combination.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + /* Filter out invalid channel in current GEO */ + if (!libipw_is_valid_channel(priv->ieee, network->channel)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of invalid channel in current GEO\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + /* Ensure that the rates supported by the driver are compatible with + * this AP, including verification of basic rates (mandatory) */ + if (!ipw_compatible_rates(priv, network, &rates)) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because configured rate mask excludes AP mandatory rate.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + if (rates.num_rates == 0) { + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' excluded because of no compatible rates.\n", + network->ssid_len, network->ssid, + network->bssid); + return 0; + } + + /* TODO: Perform any further minimal comparititive tests. We do not + * want to put too much policy logic here; intelligent scan selection + * should occur within a generic IEEE 802.11 user space tool. */ + + /* Set up 'new' AP to this network */ + ipw_copy_rates(&match->rates, &rates); + match->network = network; + + IPW_DEBUG_ASSOC("Network '%*pE (%pM)' is a viable match.\n", + network->ssid_len, network->ssid, network->bssid); + + return 1; +} + +static void ipw_adhoc_create(struct ipw_priv *priv, + struct libipw_network *network) +{ + const struct libipw_geo *geo = libipw_get_geo(priv->ieee); + int i; + + /* + * For the purposes of scanning, we can set our wireless mode + * to trigger scans across combinations of bands, but when it + * comes to creating a new ad-hoc network, we have tell the FW + * exactly which band to use. + * + * We also have the possibility of an invalid channel for the + * chossen band. Attempting to create a new ad-hoc network + * with an invalid channel for wireless mode will trigger a + * FW fatal error. + * + */ + switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { + case LIBIPW_52GHZ_BAND: + network->mode = IEEE_A; + i = libipw_channel_to_index(priv->ieee, priv->channel); + BUG_ON(i == -1); + if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) { + IPW_WARNING("Overriding invalid channel\n"); + priv->channel = geo->a[0].channel; + } + break; + + case LIBIPW_24GHZ_BAND: + if (priv->ieee->mode & IEEE_G) + network->mode = IEEE_G; + else + network->mode = IEEE_B; + i = libipw_channel_to_index(priv->ieee, priv->channel); + BUG_ON(i == -1); + if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) { + IPW_WARNING("Overriding invalid channel\n"); + priv->channel = geo->bg[0].channel; + } + break; + + default: + IPW_WARNING("Overriding invalid channel\n"); + if (priv->ieee->mode & IEEE_A) { + network->mode = IEEE_A; + priv->channel = geo->a[0].channel; + } else if (priv->ieee->mode & IEEE_G) { + network->mode = IEEE_G; + priv->channel = geo->bg[0].channel; + } else { + network->mode = IEEE_B; + priv->channel = geo->bg[0].channel; + } + break; + } + + network->channel = priv->channel; + priv->config |= CFG_ADHOC_PERSIST; + ipw_create_bssid(priv, network->bssid); + network->ssid_len = priv->essid_len; + memcpy(network->ssid, priv->essid, priv->essid_len); + memset(&network->stats, 0, sizeof(network->stats)); + network->capability = WLAN_CAPABILITY_IBSS; + if (!(priv->config & CFG_PREAMBLE_LONG)) + network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE; + if (priv->capability & CAP_PRIVACY_ON) + network->capability |= WLAN_CAPABILITY_PRIVACY; + network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH); + memcpy(network->rates, priv->rates.supported_rates, network->rates_len); + network->rates_ex_len = priv->rates.num_rates - network->rates_len; + memcpy(network->rates_ex, + &priv->rates.supported_rates[network->rates_len], + network->rates_ex_len); + network->last_scanned = 0; + network->flags = 0; + network->last_associate = 0; + network->time_stamp[0] = 0; + network->time_stamp[1] = 0; + network->beacon_interval = 100; /* Default */ + network->listen_interval = 10; /* Default */ + network->atim_window = 0; /* Default */ + network->wpa_ie_len = 0; + network->rsn_ie_len = 0; +} + +static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index) +{ + struct ipw_tgi_tx_key key; + + if (!(priv->ieee->sec.flags & (1 << index))) + return; + + key.key_id = index; + memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH); + key.security_type = type; + key.station_index = 0; /* always 0 for BSS */ + key.flags = 0; + /* 0 for new key; previous value of counter (after fatal error) */ + key.tx_counter[0] = cpu_to_le32(0); + key.tx_counter[1] = cpu_to_le32(0); + + ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key); +} + +static void ipw_send_wep_keys(struct ipw_priv *priv, int type) +{ + struct ipw_wep_key key; + int i; + + key.cmd_id = DINO_CMD_WEP_KEY; + key.seq_num = 0; + + /* Note: AES keys cannot be set for multiple times. + * Only set it at the first time. */ + for (i = 0; i < 4; i++) { + key.key_index = i | type; + if (!(priv->ieee->sec.flags & (1 << i))) { + key.key_size = 0; + continue; + } + + key.key_size = priv->ieee->sec.key_sizes[i]; + memcpy(key.key, priv->ieee->sec.keys[i], key.key_size); + + ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key); + } +} + +static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level) +{ + if (priv->ieee->host_encrypt) + return; + + switch (level) { + case SEC_LEVEL_3: + priv->sys_config.disable_unicast_decryption = 0; + priv->ieee->host_decrypt = 0; + break; + case SEC_LEVEL_2: + priv->sys_config.disable_unicast_decryption = 1; + priv->ieee->host_decrypt = 1; + break; + case SEC_LEVEL_1: + priv->sys_config.disable_unicast_decryption = 0; + priv->ieee->host_decrypt = 0; + break; + case SEC_LEVEL_0: + priv->sys_config.disable_unicast_decryption = 1; + break; + default: + break; + } +} + +static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level) +{ + if (priv->ieee->host_encrypt) + return; + + switch (level) { + case SEC_LEVEL_3: + priv->sys_config.disable_multicast_decryption = 0; + break; + case SEC_LEVEL_2: + priv->sys_config.disable_multicast_decryption = 1; + break; + case SEC_LEVEL_1: + priv->sys_config.disable_multicast_decryption = 0; + break; + case SEC_LEVEL_0: + priv->sys_config.disable_multicast_decryption = 1; + break; + default: + break; + } +} + +static void ipw_set_hwcrypto_keys(struct ipw_priv *priv) +{ + switch (priv->ieee->sec.level) { + case SEC_LEVEL_3: + if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) + ipw_send_tgi_tx_key(priv, + DCT_FLAG_EXT_SECURITY_CCM, + priv->ieee->sec.active_key); + + if (!priv->ieee->host_mc_decrypt) + ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM); + break; + case SEC_LEVEL_2: + if (priv->ieee->sec.flags & SEC_ACTIVE_KEY) + ipw_send_tgi_tx_key(priv, + DCT_FLAG_EXT_SECURITY_TKIP, + priv->ieee->sec.active_key); + break; + case SEC_LEVEL_1: + ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); + ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level); + ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level); + break; + case SEC_LEVEL_0: + default: + break; + } +} + +static void ipw_adhoc_check(void *data) +{ + struct ipw_priv *priv = data; + + if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold && + !(priv->config & CFG_ADHOC_PERSIST)) { + IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | + IPW_DL_STATE | IPW_DL_ASSOC, + "Missed beacon: %d - disassociate\n", + priv->missed_adhoc_beacons); + ipw_remove_current_network(priv); + ipw_disassociate(priv); + return; + } + + schedule_delayed_work(&priv->adhoc_check, + le16_to_cpu(priv->assoc_request.beacon_interval)); +} + +static void ipw_bg_adhoc_check(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, adhoc_check.work); + mutex_lock(&priv->mutex); + ipw_adhoc_check(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_debug_config(struct ipw_priv *priv) +{ + IPW_DEBUG_INFO("Scan completed, no valid APs matched " + "[CFG 0x%08X]\n", priv->config); + if (priv->config & CFG_STATIC_CHANNEL) + IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel); + else + IPW_DEBUG_INFO("Channel unlocked.\n"); + if (priv->config & CFG_STATIC_ESSID) + IPW_DEBUG_INFO("ESSID locked to '%*pE'\n", + priv->essid_len, priv->essid); + else + IPW_DEBUG_INFO("ESSID unlocked.\n"); + if (priv->config & CFG_STATIC_BSSID) + IPW_DEBUG_INFO("BSSID locked to %pM\n", priv->bssid); + else + IPW_DEBUG_INFO("BSSID unlocked.\n"); + if (priv->capability & CAP_PRIVACY_ON) + IPW_DEBUG_INFO("PRIVACY on\n"); + else + IPW_DEBUG_INFO("PRIVACY off\n"); + IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask); +} + +static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode) +{ + /* TODO: Verify that this works... */ + struct ipw_fixed_rate fr; + u32 reg; + u16 mask = 0; + u16 new_tx_rates = priv->rates_mask; + + /* Identify 'current FW band' and match it with the fixed + * Tx rates */ + + switch (priv->ieee->freq_band) { + case LIBIPW_52GHZ_BAND: /* A only */ + /* IEEE_A */ + if (priv->rates_mask & ~LIBIPW_OFDM_RATES_MASK) { + /* Invalid fixed rate mask */ + IPW_DEBUG_WX + ("invalid fixed rate mask in ipw_set_fixed_rate\n"); + new_tx_rates = 0; + break; + } + + new_tx_rates >>= LIBIPW_OFDM_SHIFT_MASK_A; + break; + + default: /* 2.4Ghz or Mixed */ + /* IEEE_B */ + if (mode == IEEE_B) { + if (new_tx_rates & ~LIBIPW_CCK_RATES_MASK) { + /* Invalid fixed rate mask */ + IPW_DEBUG_WX + ("invalid fixed rate mask in ipw_set_fixed_rate\n"); + new_tx_rates = 0; + } + break; + } + + /* IEEE_G */ + if (new_tx_rates & ~(LIBIPW_CCK_RATES_MASK | + LIBIPW_OFDM_RATES_MASK)) { + /* Invalid fixed rate mask */ + IPW_DEBUG_WX + ("invalid fixed rate mask in ipw_set_fixed_rate\n"); + new_tx_rates = 0; + break; + } + + if (LIBIPW_OFDM_RATE_6MB_MASK & new_tx_rates) { + mask |= (LIBIPW_OFDM_RATE_6MB_MASK >> 1); + new_tx_rates &= ~LIBIPW_OFDM_RATE_6MB_MASK; + } + + if (LIBIPW_OFDM_RATE_9MB_MASK & new_tx_rates) { + mask |= (LIBIPW_OFDM_RATE_9MB_MASK >> 1); + new_tx_rates &= ~LIBIPW_OFDM_RATE_9MB_MASK; + } + + if (LIBIPW_OFDM_RATE_12MB_MASK & new_tx_rates) { + mask |= (LIBIPW_OFDM_RATE_12MB_MASK >> 1); + new_tx_rates &= ~LIBIPW_OFDM_RATE_12MB_MASK; + } + + new_tx_rates |= mask; + break; + } + + fr.tx_rates = cpu_to_le16(new_tx_rates); + + reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE); + ipw_write_reg32(priv, reg, *(u32 *) & fr); +} + +static void ipw_abort_scan(struct ipw_priv *priv) +{ + int err; + + if (priv->status & STATUS_SCAN_ABORTING) { + IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n"); + return; + } + priv->status |= STATUS_SCAN_ABORTING; + + err = ipw_send_scan_abort(priv); + if (err) + IPW_DEBUG_HC("Request to abort scan failed.\n"); +} + +static void ipw_add_scan_channels(struct ipw_priv *priv, + struct ipw_scan_request_ext *scan, + int scan_type) +{ + int channel_index = 0; + const struct libipw_geo *geo; + int i; + + geo = libipw_get_geo(priv->ieee); + + if (priv->ieee->freq_band & LIBIPW_52GHZ_BAND) { + int start = channel_index; + for (i = 0; i < geo->a_channels; i++) { + if ((priv->status & STATUS_ASSOCIATED) && + geo->a[i].channel == priv->channel) + continue; + channel_index++; + scan->channels_list[channel_index] = geo->a[i].channel; + ipw_set_scan_type(scan, channel_index, + geo->a[i]. + flags & LIBIPW_CH_PASSIVE_ONLY ? + IPW_SCAN_PASSIVE_FULL_DWELL_SCAN : + scan_type); + } + + if (start != channel_index) { + scan->channels_list[start] = (u8) (IPW_A_MODE << 6) | + (channel_index - start); + channel_index++; + } + } + + if (priv->ieee->freq_band & LIBIPW_24GHZ_BAND) { + int start = channel_index; + if (priv->config & CFG_SPEED_SCAN) { + int index; + u8 channels[LIBIPW_24GHZ_CHANNELS] = { + /* nop out the list */ + [0] = 0 + }; + + u8 channel; + while (channel_index < IPW_SCAN_CHANNELS - 1) { + channel = + priv->speed_scan[priv->speed_scan_pos]; + if (channel == 0) { + priv->speed_scan_pos = 0; + channel = priv->speed_scan[0]; + } + if ((priv->status & STATUS_ASSOCIATED) && + channel == priv->channel) { + priv->speed_scan_pos++; + continue; + } + + /* If this channel has already been + * added in scan, break from loop + * and this will be the first channel + * in the next scan. + */ + if (channels[channel - 1] != 0) + break; + + channels[channel - 1] = 1; + priv->speed_scan_pos++; + channel_index++; + scan->channels_list[channel_index] = channel; + index = + libipw_channel_to_index(priv->ieee, channel); + ipw_set_scan_type(scan, channel_index, + geo->bg[index]. + flags & + LIBIPW_CH_PASSIVE_ONLY ? + IPW_SCAN_PASSIVE_FULL_DWELL_SCAN + : scan_type); + } + } else { + for (i = 0; i < geo->bg_channels; i++) { + if ((priv->status & STATUS_ASSOCIATED) && + geo->bg[i].channel == priv->channel) + continue; + channel_index++; + scan->channels_list[channel_index] = + geo->bg[i].channel; + ipw_set_scan_type(scan, channel_index, + geo->bg[i]. + flags & + LIBIPW_CH_PASSIVE_ONLY ? + IPW_SCAN_PASSIVE_FULL_DWELL_SCAN + : scan_type); + } + } + + if (start != channel_index) { + scan->channels_list[start] = (u8) (IPW_B_MODE << 6) | + (channel_index - start); + } + } +} + +static int ipw_passive_dwell_time(struct ipw_priv *priv) +{ + /* staying on passive channels longer than the DTIM interval during a + * scan, while associated, causes the firmware to cancel the scan + * without notification. Hence, don't stay on passive channels longer + * than the beacon interval. + */ + if (priv->status & STATUS_ASSOCIATED + && priv->assoc_network->beacon_interval > 10) + return priv->assoc_network->beacon_interval - 10; + else + return 120; +} + +static int ipw_request_scan_helper(struct ipw_priv *priv, int type, int direct) +{ + struct ipw_scan_request_ext scan; + int err = 0, scan_type; + + if (!(priv->status & STATUS_INIT) || + (priv->status & STATUS_EXIT_PENDING)) + return 0; + + mutex_lock(&priv->mutex); + + if (direct && (priv->direct_scan_ssid_len == 0)) { + IPW_DEBUG_HC("Direct scan requested but no SSID to scan for\n"); + priv->status &= ~STATUS_DIRECT_SCAN_PENDING; + goto done; + } + + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_HC("Concurrent scan requested. Queuing.\n"); + priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : + STATUS_SCAN_PENDING; + goto done; + } + + if (!(priv->status & STATUS_SCAN_FORCED) && + priv->status & STATUS_SCAN_ABORTING) { + IPW_DEBUG_HC("Scan request while abort pending. Queuing.\n"); + priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : + STATUS_SCAN_PENDING; + goto done; + } + + if (priv->status & STATUS_RF_KILL_MASK) { + IPW_DEBUG_HC("Queuing scan due to RF Kill activation\n"); + priv->status |= direct ? STATUS_DIRECT_SCAN_PENDING : + STATUS_SCAN_PENDING; + goto done; + } + + memset(&scan, 0, sizeof(scan)); + scan.full_scan_index = cpu_to_le32(libipw_get_scans(priv->ieee)); + + if (type == IW_SCAN_TYPE_PASSIVE) { + IPW_DEBUG_WX("use passive scanning\n"); + scan_type = IPW_SCAN_PASSIVE_FULL_DWELL_SCAN; + scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = + cpu_to_le16(ipw_passive_dwell_time(priv)); + ipw_add_scan_channels(priv, &scan, scan_type); + goto send_request; + } + + /* Use active scan by default. */ + if (priv->config & CFG_SPEED_SCAN) + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = + cpu_to_le16(30); + else + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] = + cpu_to_le16(20); + + scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] = + cpu_to_le16(20); + + scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = + cpu_to_le16(ipw_passive_dwell_time(priv)); + scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20); + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + u8 channel; + u8 band = 0; + + switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { + case LIBIPW_52GHZ_BAND: + band = (u8) (IPW_A_MODE << 6) | 1; + channel = priv->channel; + break; + + case LIBIPW_24GHZ_BAND: + band = (u8) (IPW_B_MODE << 6) | 1; + channel = priv->channel; + break; + + default: + band = (u8) (IPW_B_MODE << 6) | 1; + channel = 9; + break; + } + + scan.channels_list[0] = band; + scan.channels_list[1] = channel; + ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN); + + /* NOTE: The card will sit on this channel for this time + * period. Scan aborts are timing sensitive and frequently + * result in firmware restarts. As such, it is best to + * set a small dwell_time here and just keep re-issuing + * scans. Otherwise fast channel hopping will not actually + * hop channels. + * + * TODO: Move SPEED SCAN support to all modes and bands */ + scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = + cpu_to_le16(2000); + } else { +#endif /* CONFIG_IPW2200_MONITOR */ + /* Honor direct scans first, otherwise if we are roaming make + * this a direct scan for the current network. Finally, + * ensure that every other scan is a fast channel hop scan */ + if (direct) { + err = ipw_send_ssid(priv, priv->direct_scan_ssid, + priv->direct_scan_ssid_len); + if (err) { + IPW_DEBUG_HC("Attempt to send SSID command " + "failed\n"); + goto done; + } + + scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; + } else if ((priv->status & STATUS_ROAMING) + || (!(priv->status & STATUS_ASSOCIATED) + && (priv->config & CFG_STATIC_ESSID) + && (le32_to_cpu(scan.full_scan_index) % 2))) { + err = ipw_send_ssid(priv, priv->essid, priv->essid_len); + if (err) { + IPW_DEBUG_HC("Attempt to send SSID command " + "failed.\n"); + goto done; + } + + scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN; + } else + scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN; + + ipw_add_scan_channels(priv, &scan, scan_type); +#ifdef CONFIG_IPW2200_MONITOR + } +#endif + +send_request: + err = ipw_send_scan_request_ext(priv, &scan); + if (err) { + IPW_DEBUG_HC("Sending scan command failed: %08X\n", err); + goto done; + } + + priv->status |= STATUS_SCANNING; + if (direct) { + priv->status &= ~STATUS_DIRECT_SCAN_PENDING; + priv->direct_scan_ssid_len = 0; + } else + priv->status &= ~STATUS_SCAN_PENDING; + + schedule_delayed_work(&priv->scan_check, IPW_SCAN_CHECK_WATCHDOG); +done: + mutex_unlock(&priv->mutex); + return err; +} + +static void ipw_request_passive_scan(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, request_passive_scan.work); + ipw_request_scan_helper(priv, IW_SCAN_TYPE_PASSIVE, 0); +} + +static void ipw_request_scan(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, request_scan.work); + ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 0); +} + +static void ipw_request_direct_scan(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, request_direct_scan.work); + ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE, 1); +} + +static void ipw_bg_abort_scan(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, abort_scan); + mutex_lock(&priv->mutex); + ipw_abort_scan(priv); + mutex_unlock(&priv->mutex); +} + +static int ipw_wpa_enable(struct ipw_priv *priv, int value) +{ + /* This is called when wpa_supplicant loads and closes the driver + * interface. */ + priv->ieee->wpa_enabled = value; + return 0; +} + +static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value) +{ + struct libipw_device *ieee = priv->ieee; + struct libipw_security sec = { + .flags = SEC_AUTH_MODE, + }; + int ret = 0; + + if (value & IW_AUTH_ALG_SHARED_KEY) { + sec.auth_mode = WLAN_AUTH_SHARED_KEY; + ieee->open_wep = 0; + } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) { + sec.auth_mode = WLAN_AUTH_OPEN; + ieee->open_wep = 1; + } else if (value & IW_AUTH_ALG_LEAP) { + sec.auth_mode = WLAN_AUTH_LEAP; + ieee->open_wep = 1; + } else + return -EINVAL; + + if (ieee->set_security) + ieee->set_security(ieee->dev, &sec); + else + ret = -EOPNOTSUPP; + + return ret; +} + +static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie, + int wpa_ie_len) +{ + /* make sure WPA is enabled */ + ipw_wpa_enable(priv, 1); +} + +static int ipw_set_rsn_capa(struct ipw_priv *priv, + char *capabilities, int length) +{ + IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n"); + + return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length, + capabilities); +} + +/* + * WE-18 support + */ + +/* SIOCSIWGENIE */ +static int ipw_wx_set_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + u8 *buf; + int err = 0; + + if (wrqu->data.length > MAX_WPA_IE_LEN || + (wrqu->data.length && extra == NULL)) + return -EINVAL; + + if (wrqu->data.length) { + buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL); + if (buf == NULL) { + err = -ENOMEM; + goto out; + } + + kfree(ieee->wpa_ie); + ieee->wpa_ie = buf; + ieee->wpa_ie_len = wrqu->data.length; + } else { + kfree(ieee->wpa_ie); + ieee->wpa_ie = NULL; + ieee->wpa_ie_len = 0; + } + + ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len); + out: + return err; +} + +/* SIOCGIWGENIE */ +static int ipw_wx_get_genie(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + int err = 0; + + if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) { + wrqu->data.length = 0; + goto out; + } + + if (wrqu->data.length < ieee->wpa_ie_len) { + err = -E2BIG; + goto out; + } + + wrqu->data.length = ieee->wpa_ie_len; + memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len); + + out: + return err; +} + +static int wext_cipher2level(int cipher) +{ + switch (cipher) { + case IW_AUTH_CIPHER_NONE: + return SEC_LEVEL_0; + case IW_AUTH_CIPHER_WEP40: + case IW_AUTH_CIPHER_WEP104: + return SEC_LEVEL_1; + case IW_AUTH_CIPHER_TKIP: + return SEC_LEVEL_2; + case IW_AUTH_CIPHER_CCMP: + return SEC_LEVEL_3; + default: + return -1; + } +} + +/* SIOCSIWAUTH */ +static int ipw_wx_set_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + struct iw_param *param = &wrqu->param; + struct lib80211_crypt_data *crypt; + unsigned long flags; + int ret = 0; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + break; + case IW_AUTH_CIPHER_PAIRWISE: + ipw_set_hw_decrypt_unicast(priv, + wext_cipher2level(param->value)); + break; + case IW_AUTH_CIPHER_GROUP: + ipw_set_hw_decrypt_multicast(priv, + wext_cipher2level(param->value)); + break; + case IW_AUTH_KEY_MGMT: + /* + * ipw2200 does not use these parameters + */ + break; + + case IW_AUTH_TKIP_COUNTERMEASURES: + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; + if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) + break; + + flags = crypt->ops->get_flags(crypt->priv); + + if (param->value) + flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; + else + flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES; + + crypt->ops->set_flags(flags, crypt->priv); + + break; + + case IW_AUTH_DROP_UNENCRYPTED:{ + /* HACK: + * + * wpa_supplicant calls set_wpa_enabled when the driver + * is loaded and unloaded, regardless of if WPA is being + * used. No other calls are made which can be used to + * determine if encryption will be used or not prior to + * association being expected. If encryption is not being + * used, drop_unencrypted is set to false, else true -- we + * can use this to determine if the CAP_PRIVACY_ON bit should + * be set. + */ + struct libipw_security sec = { + .flags = SEC_ENABLED, + .enabled = param->value, + }; + priv->ieee->drop_unencrypted = param->value; + /* We only change SEC_LEVEL for open mode. Others + * are set by ipw_wpa_set_encryption. + */ + if (!param->value) { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_0; + } else { + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; + } + if (priv->ieee->set_security) + priv->ieee->set_security(priv->ieee->dev, &sec); + break; + } + + case IW_AUTH_80211_AUTH_ALG: + ret = ipw_wpa_set_auth_algs(priv, param->value); + break; + + case IW_AUTH_WPA_ENABLED: + ret = ipw_wpa_enable(priv, param->value); + ipw_disassociate(priv); + break; + + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + ieee->ieee802_1x = param->value; + break; + + case IW_AUTH_PRIVACY_INVOKED: + ieee->privacy_invoked = param->value; + break; + + default: + return -EOPNOTSUPP; + } + return ret; +} + +/* SIOCGIWAUTH */ +static int ipw_wx_get_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct libipw_device *ieee = priv->ieee; + struct lib80211_crypt_data *crypt; + struct iw_param *param = &wrqu->param; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + /* + * wpa_supplicant will control these internally + */ + return -EOPNOTSUPP; + + case IW_AUTH_TKIP_COUNTERMEASURES: + crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx]; + if (!crypt || !crypt->ops->get_flags) + break; + + param->value = (crypt->ops->get_flags(crypt->priv) & + IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0; + + break; + + case IW_AUTH_DROP_UNENCRYPTED: + param->value = ieee->drop_unencrypted; + break; + + case IW_AUTH_80211_AUTH_ALG: + param->value = ieee->sec.auth_mode; + break; + + case IW_AUTH_WPA_ENABLED: + param->value = ieee->wpa_enabled; + break; + + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + param->value = ieee->ieee802_1x; + break; + + case IW_AUTH_ROAMING_CONTROL: + case IW_AUTH_PRIVACY_INVOKED: + param->value = ieee->privacy_invoked; + break; + + default: + return -EOPNOTSUPP; + } + return 0; +} + +/* SIOCSIWENCODEEXT */ +static int ipw_wx_set_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + + if (hwcrypto) { + if (ext->alg == IW_ENCODE_ALG_TKIP) { + /* IPW HW can't build TKIP MIC, + host decryption still needed */ + if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) + priv->ieee->host_mc_decrypt = 1; + else { + priv->ieee->host_encrypt = 0; + priv->ieee->host_encrypt_msdu = 1; + priv->ieee->host_decrypt = 1; + } + } else { + priv->ieee->host_encrypt = 0; + priv->ieee->host_encrypt_msdu = 0; + priv->ieee->host_decrypt = 0; + priv->ieee->host_mc_decrypt = 0; + } + } + + return libipw_wx_set_encodeext(priv->ieee, info, wrqu, extra); +} + +/* SIOCGIWENCODEEXT */ +static int ipw_wx_get_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + return libipw_wx_get_encodeext(priv->ieee, info, wrqu, extra); +} + +/* SIOCSIWMLME */ +static int ipw_wx_set_mlme(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct iw_mlme *mlme = (struct iw_mlme *)extra; + + switch (mlme->cmd) { + case IW_MLME_DEAUTH: + /* silently ignore */ + break; + + case IW_MLME_DISASSOC: + ipw_disassociate(priv); + break; + + default: + return -EOPNOTSUPP; + } + return 0; +} + +#ifdef CONFIG_IPW2200_QOS + +/* QoS */ +/* +* get the modulation type of the current network or +* the card current mode +*/ +static u8 ipw_qos_current_mode(struct ipw_priv * priv) +{ + u8 mode = 0; + + if (priv->status & STATUS_ASSOCIATED) { + unsigned long flags; + + spin_lock_irqsave(&priv->ieee->lock, flags); + mode = priv->assoc_network->mode; + spin_unlock_irqrestore(&priv->ieee->lock, flags); + } else { + mode = priv->ieee->mode; + } + IPW_DEBUG_QOS("QoS network/card mode %d\n", mode); + return mode; +} + +/* +* Handle management frame beacon and probe response +*/ +static int ipw_qos_handle_probe_response(struct ipw_priv *priv, + int active_network, + struct libipw_network *network) +{ + u32 size = sizeof(struct libipw_qos_parameters); + + if (network->capability & WLAN_CAPABILITY_IBSS) + network->qos_data.active = network->qos_data.supported; + + if (network->flags & NETWORK_HAS_QOS_MASK) { + if (active_network && + (network->flags & NETWORK_HAS_QOS_PARAMETERS)) + network->qos_data.active = network->qos_data.supported; + + if ((network->qos_data.active == 1) && (active_network == 1) && + (network->flags & NETWORK_HAS_QOS_PARAMETERS) && + (network->qos_data.old_param_count != + network->qos_data.param_count)) { + network->qos_data.old_param_count = + network->qos_data.param_count; + schedule_work(&priv->qos_activate); + IPW_DEBUG_QOS("QoS parameters change call " + "qos_activate\n"); + } + } else { + if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B)) + memcpy(&network->qos_data.parameters, + &def_parameters_CCK, size); + else + memcpy(&network->qos_data.parameters, + &def_parameters_OFDM, size); + + if ((network->qos_data.active == 1) && (active_network == 1)) { + IPW_DEBUG_QOS("QoS was disabled call qos_activate\n"); + schedule_work(&priv->qos_activate); + } + + network->qos_data.active = 0; + network->qos_data.supported = 0; + } + if ((priv->status & STATUS_ASSOCIATED) && + (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) { + if (!ether_addr_equal(network->bssid, priv->bssid)) + if (network->capability & WLAN_CAPABILITY_IBSS) + if ((network->ssid_len == + priv->assoc_network->ssid_len) && + !memcmp(network->ssid, + priv->assoc_network->ssid, + network->ssid_len)) { + schedule_work(&priv->merge_networks); + } + } + + return 0; +} + +/* +* This function set up the firmware to support QoS. It sends +* IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO +*/ +static int ipw_qos_activate(struct ipw_priv *priv, + struct libipw_qos_data *qos_network_data) +{ + int err; + struct libipw_qos_parameters qos_parameters[QOS_QOS_SETS]; + struct libipw_qos_parameters *active_one = NULL; + u32 size = sizeof(struct libipw_qos_parameters); + u32 burst_duration; + int i; + u8 type; + + type = ipw_qos_current_mode(priv); + + active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]); + memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size); + active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]); + memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size); + + if (qos_network_data == NULL) { + if (type == IEEE_B) { + IPW_DEBUG_QOS("QoS activate network mode %d\n", type); + active_one = &def_parameters_CCK; + } else + active_one = &def_parameters_OFDM; + + memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); + burst_duration = ipw_qos_get_burst_duration(priv); + for (i = 0; i < QOS_QUEUE_NUM; i++) + qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] = + cpu_to_le16(burst_duration); + } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + if (type == IEEE_B) { + IPW_DEBUG_QOS("QoS activate IBSS network mode %d\n", + type); + if (priv->qos_data.qos_enable == 0) + active_one = &def_parameters_CCK; + else + active_one = priv->qos_data.def_qos_parm_CCK; + } else { + if (priv->qos_data.qos_enable == 0) + active_one = &def_parameters_OFDM; + else + active_one = priv->qos_data.def_qos_parm_OFDM; + } + memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); + } else { + unsigned long flags; + int active; + + spin_lock_irqsave(&priv->ieee->lock, flags); + active_one = &(qos_network_data->parameters); + qos_network_data->old_param_count = + qos_network_data->param_count; + memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size); + active = qos_network_data->supported; + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + if (active == 0) { + burst_duration = ipw_qos_get_burst_duration(priv); + for (i = 0; i < QOS_QUEUE_NUM; i++) + qos_parameters[QOS_PARAM_SET_ACTIVE]. + tx_op_limit[i] = cpu_to_le16(burst_duration); + } + } + + IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n"); + err = ipw_send_qos_params_command(priv, &qos_parameters[0]); + if (err) + IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n"); + + return err; +} + +/* +* send IPW_CMD_WME_INFO to the firmware +*/ +static int ipw_qos_set_info_element(struct ipw_priv *priv) +{ + int ret = 0; + struct libipw_qos_information_element qos_info; + + if (priv == NULL) + return -1; + + qos_info.elementID = QOS_ELEMENT_ID; + qos_info.length = sizeof(struct libipw_qos_information_element) - 2; + + qos_info.version = QOS_VERSION_1; + qos_info.ac_info = 0; + + memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN); + qos_info.qui_type = QOS_OUI_TYPE; + qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE; + + ret = ipw_send_qos_info_command(priv, &qos_info); + if (ret != 0) { + IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n"); + } + return ret; +} + +/* +* Set the QoS parameter with the association request structure +*/ +static int ipw_qos_association(struct ipw_priv *priv, + struct libipw_network *network) +{ + int err = 0; + struct libipw_qos_data *qos_data = NULL; + struct libipw_qos_data ibss_data = { + .supported = 1, + .active = 1, + }; + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS)); + + qos_data = &ibss_data; + break; + + case IW_MODE_INFRA: + qos_data = &network->qos_data; + break; + + default: + BUG(); + break; + } + + err = ipw_qos_activate(priv, qos_data); + if (err) { + priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC; + return err; + } + + if (priv->qos_data.qos_enable && qos_data->supported) { + IPW_DEBUG_QOS("QoS will be enabled for this association\n"); + priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC; + return ipw_qos_set_info_element(priv); + } + + return 0; +} + +/* +* handling the beaconing responses. if we get different QoS setting +* off the network from the associated setting, adjust the QoS +* setting +*/ +static void ipw_qos_association_resp(struct ipw_priv *priv, + struct libipw_network *network) +{ + unsigned long flags; + u32 size = sizeof(struct libipw_qos_parameters); + int set_qos_param = 0; + + if ((priv == NULL) || (network == NULL) || + (priv->assoc_network == NULL)) + return; + + if (!(priv->status & STATUS_ASSOCIATED)) + return; + + if ((priv->ieee->iw_mode != IW_MODE_INFRA)) + return; + + spin_lock_irqsave(&priv->ieee->lock, flags); + if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { + memcpy(&priv->assoc_network->qos_data, &network->qos_data, + sizeof(struct libipw_qos_data)); + priv->assoc_network->qos_data.active = 1; + if ((network->qos_data.old_param_count != + network->qos_data.param_count)) { + set_qos_param = 1; + network->qos_data.old_param_count = + network->qos_data.param_count; + } + + } else { + if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B)) + memcpy(&priv->assoc_network->qos_data.parameters, + &def_parameters_CCK, size); + else + memcpy(&priv->assoc_network->qos_data.parameters, + &def_parameters_OFDM, size); + priv->assoc_network->qos_data.active = 0; + priv->assoc_network->qos_data.supported = 0; + set_qos_param = 1; + } + + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + if (set_qos_param == 1) + schedule_work(&priv->qos_activate); +} + +static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv) +{ + u32 ret = 0; + + if (!priv) + return 0; + + if (!(priv->ieee->modulation & LIBIPW_OFDM_MODULATION)) + ret = priv->qos_data.burst_duration_CCK; + else + ret = priv->qos_data.burst_duration_OFDM; + + return ret; +} + +/* +* Initialize the setting of QoS global +*/ +static void ipw_qos_init(struct ipw_priv *priv, int enable, + int burst_enable, u32 burst_duration_CCK, + u32 burst_duration_OFDM) +{ + priv->qos_data.qos_enable = enable; + + if (priv->qos_data.qos_enable) { + priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK; + priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM; + IPW_DEBUG_QOS("QoS is enabled\n"); + } else { + priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK; + priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM; + IPW_DEBUG_QOS("QoS is not enabled\n"); + } + + priv->qos_data.burst_enable = burst_enable; + + if (burst_enable) { + priv->qos_data.burst_duration_CCK = burst_duration_CCK; + priv->qos_data.burst_duration_OFDM = burst_duration_OFDM; + } else { + priv->qos_data.burst_duration_CCK = 0; + priv->qos_data.burst_duration_OFDM = 0; + } +} + +/* +* map the packet priority to the right TX Queue +*/ +static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority) +{ + if (priority > 7 || !priv->qos_data.qos_enable) + priority = 0; + + return from_priority_to_tx_queue[priority] - 1; +} + +static int ipw_is_qos_active(struct net_device *dev, + struct sk_buff *skb) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct libipw_qos_data *qos_data = NULL; + int active, supported; + u8 *daddr = skb->data + ETH_ALEN; + int unicast = !is_multicast_ether_addr(daddr); + + if (!(priv->status & STATUS_ASSOCIATED)) + return 0; + + qos_data = &priv->assoc_network->qos_data; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + if (unicast == 0) + qos_data->active = 0; + else + qos_data->active = qos_data->supported; + } + active = qos_data->active; + supported = qos_data->supported; + IPW_DEBUG_QOS("QoS %d network is QoS active %d supported %d " + "unicast %d\n", + priv->qos_data.qos_enable, active, supported, unicast); + if (active && priv->qos_data.qos_enable) + return 1; + + return 0; + +} +/* +* add QoS parameter to the TX command +*/ +static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv, + u16 priority, + struct tfd_data *tfd) +{ + int tx_queue_id = 0; + + + tx_queue_id = from_priority_to_tx_queue[priority] - 1; + tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED; + + if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) { + tfd->tx_flags &= ~DCT_FLAG_ACK_REQD; + tfd->tfd.tfd_26.mchdr.qos_ctrl |= cpu_to_le16(CTRL_QOS_NO_ACK); + } + return 0; +} + +/* +* background support to run QoS activate functionality +*/ +static void ipw_bg_qos_activate(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, qos_activate); + + mutex_lock(&priv->mutex); + + if (priv->status & STATUS_ASSOCIATED) + ipw_qos_activate(priv, &(priv->assoc_network->qos_data)); + + mutex_unlock(&priv->mutex); +} + +static int ipw_handle_probe_response(struct net_device *dev, + struct libipw_probe_response *resp, + struct libipw_network *network) +{ + struct ipw_priv *priv = libipw_priv(dev); + int active_network = ((priv->status & STATUS_ASSOCIATED) && + (network == priv->assoc_network)); + + ipw_qos_handle_probe_response(priv, active_network, network); + + return 0; +} + +static int ipw_handle_beacon(struct net_device *dev, + struct libipw_beacon *resp, + struct libipw_network *network) +{ + struct ipw_priv *priv = libipw_priv(dev); + int active_network = ((priv->status & STATUS_ASSOCIATED) && + (network == priv->assoc_network)); + + ipw_qos_handle_probe_response(priv, active_network, network); + + return 0; +} + +static int ipw_handle_assoc_response(struct net_device *dev, + struct libipw_assoc_response *resp, + struct libipw_network *network) +{ + struct ipw_priv *priv = libipw_priv(dev); + ipw_qos_association_resp(priv, network); + return 0; +} + +static int ipw_send_qos_params_command(struct ipw_priv *priv, struct libipw_qos_parameters + *qos_param) +{ + return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS, + sizeof(*qos_param) * 3, qos_param); +} + +static int ipw_send_qos_info_command(struct ipw_priv *priv, struct libipw_qos_information_element + *qos_param) +{ + return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param), + qos_param); +} + +#endif /* CONFIG_IPW2200_QOS */ + +static int ipw_associate_network(struct ipw_priv *priv, + struct libipw_network *network, + struct ipw_supported_rates *rates, int roaming) +{ + int err; + + if (priv->config & CFG_FIXED_RATE) + ipw_set_fixed_rate(priv, network->mode); + + if (!(priv->config & CFG_STATIC_ESSID)) { + priv->essid_len = min(network->ssid_len, + (u8) IW_ESSID_MAX_SIZE); + memcpy(priv->essid, network->ssid, priv->essid_len); + } + + network->last_associate = jiffies; + + memset(&priv->assoc_request, 0, sizeof(priv->assoc_request)); + priv->assoc_request.channel = network->channel; + priv->assoc_request.auth_key = 0; + + if ((priv->capability & CAP_PRIVACY_ON) && + (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) { + priv->assoc_request.auth_type = AUTH_SHARED_KEY; + priv->assoc_request.auth_key = priv->ieee->sec.active_key; + + if (priv->ieee->sec.level == SEC_LEVEL_1) + ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP); + + } else if ((priv->capability & CAP_PRIVACY_ON) && + (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP)) + priv->assoc_request.auth_type = AUTH_LEAP; + else + priv->assoc_request.auth_type = AUTH_OPEN; + + if (priv->ieee->wpa_ie_len) { + priv->assoc_request.policy_support = cpu_to_le16(0x02); /* RSN active */ + ipw_set_rsn_capa(priv, priv->ieee->wpa_ie, + priv->ieee->wpa_ie_len); + } + + /* + * It is valid for our ieee device to support multiple modes, but + * when it comes to associating to a given network we have to choose + * just one mode. + */ + if (network->mode & priv->ieee->mode & IEEE_A) + priv->assoc_request.ieee_mode = IPW_A_MODE; + else if (network->mode & priv->ieee->mode & IEEE_G) + priv->assoc_request.ieee_mode = IPW_G_MODE; + else if (network->mode & priv->ieee->mode & IEEE_B) + priv->assoc_request.ieee_mode = IPW_B_MODE; + + priv->assoc_request.capability = cpu_to_le16(network->capability); + if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) + && !(priv->config & CFG_PREAMBLE_LONG)) { + priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE; + } else { + priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE; + + /* Clear the short preamble if we won't be supporting it */ + priv->assoc_request.capability &= + ~cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE); + } + + /* Clear capability bits that aren't used in Ad Hoc */ + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + priv->assoc_request.capability &= + ~cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME); + + IPW_DEBUG_ASSOC("%ssociation attempt: '%*pE', channel %d, 802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n", + roaming ? "Rea" : "A", + priv->essid_len, priv->essid, + network->channel, + ipw_modes[priv->assoc_request.ieee_mode], + rates->num_rates, + (priv->assoc_request.preamble_length == + DCT_FLAG_LONG_PREAMBLE) ? "long" : "short", + network->capability & + WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long", + priv->capability & CAP_PRIVACY_ON ? "on " : "off", + priv->capability & CAP_PRIVACY_ON ? + (priv->capability & CAP_SHARED_KEY ? "(shared)" : + "(open)") : "", + priv->capability & CAP_PRIVACY_ON ? " key=" : "", + priv->capability & CAP_PRIVACY_ON ? + '1' + priv->ieee->sec.active_key : '.', + priv->capability & CAP_PRIVACY_ON ? '.' : ' '); + + priv->assoc_request.beacon_interval = cpu_to_le16(network->beacon_interval); + if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && + (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) { + priv->assoc_request.assoc_type = HC_IBSS_START; + priv->assoc_request.assoc_tsf_msw = 0; + priv->assoc_request.assoc_tsf_lsw = 0; + } else { + if (unlikely(roaming)) + priv->assoc_request.assoc_type = HC_REASSOCIATE; + else + priv->assoc_request.assoc_type = HC_ASSOCIATE; + priv->assoc_request.assoc_tsf_msw = cpu_to_le32(network->time_stamp[1]); + priv->assoc_request.assoc_tsf_lsw = cpu_to_le32(network->time_stamp[0]); + } + + memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN); + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + eth_broadcast_addr(priv->assoc_request.dest); + priv->assoc_request.atim_window = cpu_to_le16(network->atim_window); + } else { + memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN); + priv->assoc_request.atim_window = 0; + } + + priv->assoc_request.listen_interval = cpu_to_le16(network->listen_interval); + + err = ipw_send_ssid(priv, priv->essid, priv->essid_len); + if (err) { + IPW_DEBUG_HC("Attempt to send SSID command failed.\n"); + return err; + } + + rates->ieee_mode = priv->assoc_request.ieee_mode; + rates->purpose = IPW_RATE_CONNECT; + ipw_send_supported_rates(priv, rates); + + if (priv->assoc_request.ieee_mode == IPW_G_MODE) + priv->sys_config.dot11g_auto_detection = 1; + else + priv->sys_config.dot11g_auto_detection = 0; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + priv->sys_config.answer_broadcast_ssid_probe = 1; + else + priv->sys_config.answer_broadcast_ssid_probe = 0; + + err = ipw_send_system_config(priv); + if (err) { + IPW_DEBUG_HC("Attempt to send sys config command failed.\n"); + return err; + } + + IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi); + err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM); + if (err) { + IPW_DEBUG_HC("Attempt to send associate command failed.\n"); + return err; + } + + /* + * If preemption is enabled, it is possible for the association + * to complete before we return from ipw_send_associate. Therefore + * we have to be sure and update our priviate data first. + */ + priv->channel = network->channel; + memcpy(priv->bssid, network->bssid, ETH_ALEN); + priv->status |= STATUS_ASSOCIATING; + priv->status &= ~STATUS_SECURITY_UPDATED; + + priv->assoc_network = network; + +#ifdef CONFIG_IPW2200_QOS + ipw_qos_association(priv, network); +#endif + + err = ipw_send_associate(priv, &priv->assoc_request); + if (err) { + IPW_DEBUG_HC("Attempt to send associate command failed.\n"); + return err; + } + + IPW_DEBUG(IPW_DL_STATE, "associating: '%*pE' %pM\n", + priv->essid_len, priv->essid, priv->bssid); + + return 0; +} + +static void ipw_roam(void *data) +{ + struct ipw_priv *priv = data; + struct libipw_network *network = NULL; + struct ipw_network_match match = { + .network = priv->assoc_network + }; + + /* The roaming process is as follows: + * + * 1. Missed beacon threshold triggers the roaming process by + * setting the status ROAM bit and requesting a scan. + * 2. When the scan completes, it schedules the ROAM work + * 3. The ROAM work looks at all of the known networks for one that + * is a better network than the currently associated. If none + * found, the ROAM process is over (ROAM bit cleared) + * 4. If a better network is found, a disassociation request is + * sent. + * 5. When the disassociation completes, the roam work is again + * scheduled. The second time through, the driver is no longer + * associated, and the newly selected network is sent an + * association request. + * 6. At this point ,the roaming process is complete and the ROAM + * status bit is cleared. + */ + + /* If we are no longer associated, and the roaming bit is no longer + * set, then we are not actively roaming, so just return */ + if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING))) + return; + + if (priv->status & STATUS_ASSOCIATED) { + /* First pass through ROAM process -- look for a better + * network */ + unsigned long flags; + u8 rssi = priv->assoc_network->stats.rssi; + priv->assoc_network->stats.rssi = -128; + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_entry(network, &priv->ieee->network_list, list) { + if (network != priv->assoc_network) + ipw_best_network(priv, &match, network, 1); + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); + priv->assoc_network->stats.rssi = rssi; + + if (match.network == priv->assoc_network) { + IPW_DEBUG_ASSOC("No better APs in this network to " + "roam to.\n"); + priv->status &= ~STATUS_ROAMING; + ipw_debug_config(priv); + return; + } + + ipw_send_disassociate(priv, 1); + priv->assoc_network = match.network; + + return; + } + + /* Second pass through ROAM process -- request association */ + ipw_compatible_rates(priv, priv->assoc_network, &match.rates); + ipw_associate_network(priv, priv->assoc_network, &match.rates, 1); + priv->status &= ~STATUS_ROAMING; +} + +static void ipw_bg_roam(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, roam); + mutex_lock(&priv->mutex); + ipw_roam(priv); + mutex_unlock(&priv->mutex); +} + +static int ipw_associate(void *data) +{ + struct ipw_priv *priv = data; + + struct libipw_network *network = NULL; + struct ipw_network_match match = { + .network = NULL + }; + struct ipw_supported_rates *rates; + struct list_head *element; + unsigned long flags; + + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n"); + return 0; + } + + if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { + IPW_DEBUG_ASSOC("Not attempting association (already in " + "progress)\n"); + return 0; + } + + if (priv->status & STATUS_DISASSOCIATING) { + IPW_DEBUG_ASSOC("Not attempting association (in disassociating)\n"); + schedule_work(&priv->associate); + return 0; + } + + if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) { + IPW_DEBUG_ASSOC("Not attempting association (scanning or not " + "initialized)\n"); + return 0; + } + + if (!(priv->config & CFG_ASSOCIATE) && + !(priv->config & (CFG_STATIC_ESSID | CFG_STATIC_BSSID))) { + IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n"); + return 0; + } + + /* Protect our use of the network_list */ + spin_lock_irqsave(&priv->ieee->lock, flags); + list_for_each_entry(network, &priv->ieee->network_list, list) + ipw_best_network(priv, &match, network, 0); + + network = match.network; + rates = &match.rates; + + if (network == NULL && + priv->ieee->iw_mode == IW_MODE_ADHOC && + priv->config & CFG_ADHOC_CREATE && + priv->config & CFG_STATIC_ESSID && + priv->config & CFG_STATIC_CHANNEL) { + /* Use oldest network if the free list is empty */ + if (list_empty(&priv->ieee->network_free_list)) { + struct libipw_network *oldest = NULL; + struct libipw_network *target; + + list_for_each_entry(target, &priv->ieee->network_list, list) { + if ((oldest == NULL) || + (target->last_scanned < oldest->last_scanned)) + oldest = target; + } + + /* If there are no more slots, expire the oldest */ + list_del(&oldest->list); + target = oldest; + IPW_DEBUG_ASSOC("Expired '%*pE' (%pM) from network list.\n", + target->ssid_len, target->ssid, + target->bssid); + list_add_tail(&target->list, + &priv->ieee->network_free_list); + } + + element = priv->ieee->network_free_list.next; + network = list_entry(element, struct libipw_network, list); + ipw_adhoc_create(priv, network); + rates = &priv->rates; + list_del(element); + list_add_tail(&network->list, &priv->ieee->network_list); + } + spin_unlock_irqrestore(&priv->ieee->lock, flags); + + /* If we reached the end of the list, then we don't have any valid + * matching APs */ + if (!network) { + ipw_debug_config(priv); + + if (!(priv->status & STATUS_SCANNING)) { + if (!(priv->config & CFG_SPEED_SCAN)) + schedule_delayed_work(&priv->request_scan, + SCAN_INTERVAL); + else + schedule_delayed_work(&priv->request_scan, 0); + } + + return 0; + } + + ipw_associate_network(priv, network, rates, 0); + + return 1; +} + +static void ipw_bg_associate(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, associate); + mutex_lock(&priv->mutex); + ipw_associate(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv, + struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr; + u16 fc; + + hdr = (struct ieee80211_hdr *)skb->data; + fc = le16_to_cpu(hdr->frame_control); + if (!(fc & IEEE80211_FCTL_PROTECTED)) + return; + + fc &= ~IEEE80211_FCTL_PROTECTED; + hdr->frame_control = cpu_to_le16(fc); + switch (priv->ieee->sec.level) { + case SEC_LEVEL_3: + /* Remove CCMP HDR */ + memmove(skb->data + LIBIPW_3ADDR_LEN, + skb->data + LIBIPW_3ADDR_LEN + 8, + skb->len - LIBIPW_3ADDR_LEN - 8); + skb_trim(skb, skb->len - 16); /* CCMP_HDR_LEN + CCMP_MIC_LEN */ + break; + case SEC_LEVEL_2: + break; + case SEC_LEVEL_1: + /* Remove IV */ + memmove(skb->data + LIBIPW_3ADDR_LEN, + skb->data + LIBIPW_3ADDR_LEN + 4, + skb->len - LIBIPW_3ADDR_LEN - 4); + skb_trim(skb, skb->len - 8); /* IV + ICV */ + break; + case SEC_LEVEL_0: + break; + default: + printk(KERN_ERR "Unknown security level %d\n", + priv->ieee->sec.level); + break; + } +} + +static void ipw_handle_data_packet(struct ipw_priv *priv, + struct ipw_rx_mem_buffer *rxb, + struct libipw_rx_stats *stats) +{ + struct net_device *dev = priv->net_dev; + struct libipw_hdr_4addr *hdr; + struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; + + /* We received data from the HW, so stop the watchdog */ + netif_trans_update(dev); + + /* We only process data packets if the + * interface is open */ + if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) > + skb_tailroom(rxb->skb))) { + dev->stats.rx_errors++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); + return; + } else if (unlikely(!netif_running(priv->net_dev))) { + dev->stats.rx_dropped++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); + return; + } + + /* Advance skb->data to the start of the actual payload */ + skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data)); + + /* Set the size of the skb to the size of the frame */ + skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length)); + + IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); + + /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */ + hdr = (struct libipw_hdr_4addr *)rxb->skb->data; + if (priv->ieee->iw_mode != IW_MODE_MONITOR && + (is_multicast_ether_addr(hdr->addr1) ? + !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt)) + ipw_rebuild_decrypted_skb(priv, rxb->skb); + + if (!libipw_rx(priv->ieee, rxb->skb, stats)) + dev->stats.rx_errors++; + else { /* libipw_rx succeeded, so it now owns the SKB */ + rxb->skb = NULL; + __ipw_led_activity_on(priv); + } +} + +#ifdef CONFIG_IPW2200_RADIOTAP +static void ipw_handle_data_packet_monitor(struct ipw_priv *priv, + struct ipw_rx_mem_buffer *rxb, + struct libipw_rx_stats *stats) +{ + struct net_device *dev = priv->net_dev; + struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; + struct ipw_rx_frame *frame = &pkt->u.frame; + + /* initial pull of some data */ + u16 received_channel = frame->received_channel; + u8 antennaAndPhy = frame->antennaAndPhy; + s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM; /* call it signed anyhow */ + u16 pktrate = frame->rate; + + /* Magic struct that slots into the radiotap header -- no reason + * to build this manually element by element, we can write it much + * more efficiently than we can parse it. ORDER MATTERS HERE */ + struct ipw_rt_hdr *ipw_rt; + + unsigned short len = le16_to_cpu(pkt->u.frame.length); + + /* We received data from the HW, so stop the watchdog */ + netif_trans_update(dev); + + /* We only process data packets if the + * interface is open */ + if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) > + skb_tailroom(rxb->skb))) { + dev->stats.rx_errors++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); + return; + } else if (unlikely(!netif_running(priv->net_dev))) { + dev->stats.rx_dropped++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); + return; + } + + /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use + * that now */ + if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) { + /* FIXME: Should alloc bigger skb instead */ + dev->stats.rx_dropped++; + priv->wstats.discard.misc++; + IPW_DEBUG_DROP("Dropping too large packet in monitor\n"); + return; + } + + /* copy the frame itself */ + memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr), + rxb->skb->data + IPW_RX_FRAME_SIZE, len); + + ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data; + + ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; + ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ + ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total header+data */ + + /* Big bitfield of all the fields we provide in radiotap */ + ipw_rt->rt_hdr.it_present = cpu_to_le32( + (1 << IEEE80211_RADIOTAP_TSFT) | + (1 << IEEE80211_RADIOTAP_FLAGS) | + (1 << IEEE80211_RADIOTAP_RATE) | + (1 << IEEE80211_RADIOTAP_CHANNEL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | + (1 << IEEE80211_RADIOTAP_ANTENNA)); + + /* Zero the flags, we'll add to them as we go */ + ipw_rt->rt_flags = 0; + ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | + frame->parent_tsf[2] << 16 | + frame->parent_tsf[1] << 8 | + frame->parent_tsf[0]); + + /* Convert signal to DBM */ + ipw_rt->rt_dbmsignal = antsignal; + ipw_rt->rt_dbmnoise = (s8) le16_to_cpu(frame->noise); + + /* Convert the channel data and set the flags */ + ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel)); + if (received_channel > 14) { /* 802.11a */ + ipw_rt->rt_chbitmask = + cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); + } else if (antennaAndPhy & 32) { /* 802.11b */ + ipw_rt->rt_chbitmask = + cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); + } else { /* 802.11g */ + ipw_rt->rt_chbitmask = + cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ); + } + + /* set the rate in multiples of 500k/s */ + switch (pktrate) { + case IPW_TX_RATE_1MB: + ipw_rt->rt_rate = 2; + break; + case IPW_TX_RATE_2MB: + ipw_rt->rt_rate = 4; + break; + case IPW_TX_RATE_5MB: + ipw_rt->rt_rate = 10; + break; + case IPW_TX_RATE_6MB: + ipw_rt->rt_rate = 12; + break; + case IPW_TX_RATE_9MB: + ipw_rt->rt_rate = 18; + break; + case IPW_TX_RATE_11MB: + ipw_rt->rt_rate = 22; + break; + case IPW_TX_RATE_12MB: + ipw_rt->rt_rate = 24; + break; + case IPW_TX_RATE_18MB: + ipw_rt->rt_rate = 36; + break; + case IPW_TX_RATE_24MB: + ipw_rt->rt_rate = 48; + break; + case IPW_TX_RATE_36MB: + ipw_rt->rt_rate = 72; + break; + case IPW_TX_RATE_48MB: + ipw_rt->rt_rate = 96; + break; + case IPW_TX_RATE_54MB: + ipw_rt->rt_rate = 108; + break; + default: + ipw_rt->rt_rate = 0; + break; + } + + /* antenna number */ + ipw_rt->rt_antenna = (antennaAndPhy & 3); /* Is this right? */ + + /* set the preamble flag if we have it */ + if ((antennaAndPhy & 64)) + ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; + + /* Set the size of the skb to the size of the frame */ + skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr)); + + IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); + + if (!libipw_rx(priv->ieee, rxb->skb, stats)) + dev->stats.rx_errors++; + else { /* libipw_rx succeeded, so it now owns the SKB */ + rxb->skb = NULL; + /* no LED during capture */ + } +} +#endif + +#ifdef CONFIG_IPW2200_PROMISCUOUS +#define libipw_is_probe_response(fc) \ + ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \ + (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP ) + +#define libipw_is_management(fc) \ + ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) + +#define libipw_is_control(fc) \ + ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) + +#define libipw_is_data(fc) \ + ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) + +#define libipw_is_assoc_request(fc) \ + ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ) + +#define libipw_is_reassoc_request(fc) \ + ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ) + +static void ipw_handle_promiscuous_rx(struct ipw_priv *priv, + struct ipw_rx_mem_buffer *rxb, + struct libipw_rx_stats *stats) +{ + struct net_device *dev = priv->prom_net_dev; + struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data; + struct ipw_rx_frame *frame = &pkt->u.frame; + struct ipw_rt_hdr *ipw_rt; + + /* First cache any information we need before we overwrite + * the information provided in the skb from the hardware */ + struct ieee80211_hdr *hdr; + u16 channel = frame->received_channel; + u8 phy_flags = frame->antennaAndPhy; + s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM; + s8 noise = (s8) le16_to_cpu(frame->noise); + u8 rate = frame->rate; + unsigned short len = le16_to_cpu(pkt->u.frame.length); + struct sk_buff *skb; + int hdr_only = 0; + u16 filter = priv->prom_priv->filter; + + /* If the filter is set to not include Rx frames then return */ + if (filter & IPW_PROM_NO_RX) + return; + + /* We received data from the HW, so stop the watchdog */ + netif_trans_update(dev); + + if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) { + dev->stats.rx_errors++; + IPW_DEBUG_DROP("Corruption detected! Oh no!\n"); + return; + } + + /* We only process data packets if the interface is open */ + if (unlikely(!netif_running(dev))) { + dev->stats.rx_dropped++; + IPW_DEBUG_DROP("Dropping packet while interface is not up.\n"); + return; + } + + /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use + * that now */ + if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) { + /* FIXME: Should alloc bigger skb instead */ + dev->stats.rx_dropped++; + IPW_DEBUG_DROP("Dropping too large packet in monitor\n"); + return; + } + + hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE; + if (libipw_is_management(le16_to_cpu(hdr->frame_control))) { + if (filter & IPW_PROM_NO_MGMT) + return; + if (filter & IPW_PROM_MGMT_HEADER_ONLY) + hdr_only = 1; + } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) { + if (filter & IPW_PROM_NO_CTL) + return; + if (filter & IPW_PROM_CTL_HEADER_ONLY) + hdr_only = 1; + } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) { + if (filter & IPW_PROM_NO_DATA) + return; + if (filter & IPW_PROM_DATA_HEADER_ONLY) + hdr_only = 1; + } + + /* Copy the SKB since this is for the promiscuous side */ + skb = skb_copy(rxb->skb, GFP_ATOMIC); + if (skb == NULL) { + IPW_ERROR("skb_clone failed for promiscuous copy.\n"); + return; + } + + /* copy the frame data to write after where the radiotap header goes */ + ipw_rt = (void *)skb->data; + + if (hdr_only) + len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control)); + + memcpy(ipw_rt->payload, hdr, len); + + ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; + ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */ + ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*ipw_rt)); /* total header+data */ + + /* Set the size of the skb to the size of the frame */ + skb_put(skb, sizeof(*ipw_rt) + len); + + /* Big bitfield of all the fields we provide in radiotap */ + ipw_rt->rt_hdr.it_present = cpu_to_le32( + (1 << IEEE80211_RADIOTAP_TSFT) | + (1 << IEEE80211_RADIOTAP_FLAGS) | + (1 << IEEE80211_RADIOTAP_RATE) | + (1 << IEEE80211_RADIOTAP_CHANNEL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | + (1 << IEEE80211_RADIOTAP_ANTENNA)); + + /* Zero the flags, we'll add to them as we go */ + ipw_rt->rt_flags = 0; + ipw_rt->rt_tsf = (u64)(frame->parent_tsf[3] << 24 | + frame->parent_tsf[2] << 16 | + frame->parent_tsf[1] << 8 | + frame->parent_tsf[0]); + + /* Convert to DBM */ + ipw_rt->rt_dbmsignal = signal; + ipw_rt->rt_dbmnoise = noise; + + /* Convert the channel data and set the flags */ + ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel)); + if (channel > 14) { /* 802.11a */ + ipw_rt->rt_chbitmask = + cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); + } else if (phy_flags & (1 << 5)) { /* 802.11b */ + ipw_rt->rt_chbitmask = + cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); + } else { /* 802.11g */ + ipw_rt->rt_chbitmask = + cpu_to_le16(IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ); + } + + /* set the rate in multiples of 500k/s */ + switch (rate) { + case IPW_TX_RATE_1MB: + ipw_rt->rt_rate = 2; + break; + case IPW_TX_RATE_2MB: + ipw_rt->rt_rate = 4; + break; + case IPW_TX_RATE_5MB: + ipw_rt->rt_rate = 10; + break; + case IPW_TX_RATE_6MB: + ipw_rt->rt_rate = 12; + break; + case IPW_TX_RATE_9MB: + ipw_rt->rt_rate = 18; + break; + case IPW_TX_RATE_11MB: + ipw_rt->rt_rate = 22; + break; + case IPW_TX_RATE_12MB: + ipw_rt->rt_rate = 24; + break; + case IPW_TX_RATE_18MB: + ipw_rt->rt_rate = 36; + break; + case IPW_TX_RATE_24MB: + ipw_rt->rt_rate = 48; + break; + case IPW_TX_RATE_36MB: + ipw_rt->rt_rate = 72; + break; + case IPW_TX_RATE_48MB: + ipw_rt->rt_rate = 96; + break; + case IPW_TX_RATE_54MB: + ipw_rt->rt_rate = 108; + break; + default: + ipw_rt->rt_rate = 0; + break; + } + + /* antenna number */ + ipw_rt->rt_antenna = (phy_flags & 3); + + /* set the preamble flag if we have it */ + if (phy_flags & (1 << 6)) + ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; + + IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len); + + if (!libipw_rx(priv->prom_priv->ieee, skb, stats)) { + dev->stats.rx_errors++; + dev_kfree_skb_any(skb); + } +} +#endif + +static int is_network_packet(struct ipw_priv *priv, + struct libipw_hdr_4addr *header) +{ + /* Filter incoming packets to determine if they are targeted toward + * this network, discarding packets coming from ourselves */ + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: /* Header: Dest. | Source | BSSID */ + /* packets from our adapter are dropped (echo) */ + if (ether_addr_equal(header->addr2, priv->net_dev->dev_addr)) + return 0; + + /* {broad,multi}cast packets to our BSSID go through */ + if (is_multicast_ether_addr(header->addr1)) + return ether_addr_equal(header->addr3, priv->bssid); + + /* packets to our adapter go through */ + return ether_addr_equal(header->addr1, + priv->net_dev->dev_addr); + + case IW_MODE_INFRA: /* Header: Dest. | BSSID | Source */ + /* packets from our adapter are dropped (echo) */ + if (ether_addr_equal(header->addr3, priv->net_dev->dev_addr)) + return 0; + + /* {broad,multi}cast packets to our BSS go through */ + if (is_multicast_ether_addr(header->addr1)) + return ether_addr_equal(header->addr2, priv->bssid); + + /* packets to our adapter go through */ + return ether_addr_equal(header->addr1, + priv->net_dev->dev_addr); + } + + return 1; +} + +#define IPW_PACKET_RETRY_TIME HZ + +static int is_duplicate_packet(struct ipw_priv *priv, + struct libipw_hdr_4addr *header) +{ + u16 sc = le16_to_cpu(header->seq_ctl); + u16 seq = WLAN_GET_SEQ_SEQ(sc); + u16 frag = WLAN_GET_SEQ_FRAG(sc); + u16 *last_seq, *last_frag; + unsigned long *last_time; + + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + { + struct list_head *p; + struct ipw_ibss_seq *entry = NULL; + u8 *mac = header->addr2; + int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE; + + list_for_each(p, &priv->ibss_mac_hash[index]) { + entry = + list_entry(p, struct ipw_ibss_seq, list); + if (ether_addr_equal(entry->mac, mac)) + break; + } + if (p == &priv->ibss_mac_hash[index]) { + entry = kmalloc(sizeof(*entry), GFP_ATOMIC); + if (!entry) { + IPW_ERROR + ("Cannot malloc new mac entry\n"); + return 0; + } + memcpy(entry->mac, mac, ETH_ALEN); + entry->seq_num = seq; + entry->frag_num = frag; + entry->packet_time = jiffies; + list_add(&entry->list, + &priv->ibss_mac_hash[index]); + return 0; + } + last_seq = &entry->seq_num; + last_frag = &entry->frag_num; + last_time = &entry->packet_time; + break; + } + case IW_MODE_INFRA: + last_seq = &priv->last_seq_num; + last_frag = &priv->last_frag_num; + last_time = &priv->last_packet_time; + break; + default: + return 0; + } + if ((*last_seq == seq) && + time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) { + if (*last_frag == frag) + goto drop; + if (*last_frag + 1 != frag) + /* out-of-order fragment */ + goto drop; + } else + *last_seq = seq; + + *last_frag = frag; + *last_time = jiffies; + return 0; + + drop: + /* Comment this line now since we observed the card receives + * duplicate packets but the FCTL_RETRY bit is not set in the + * IBSS mode with fragmentation enabled. + BUG_ON(!(le16_to_cpu(header->frame_control) & IEEE80211_FCTL_RETRY)); */ + return 1; +} + +static void ipw_handle_mgmt_packet(struct ipw_priv *priv, + struct ipw_rx_mem_buffer *rxb, + struct libipw_rx_stats *stats) +{ + struct sk_buff *skb = rxb->skb; + struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data; + struct libipw_hdr_4addr *header = (struct libipw_hdr_4addr *) + (skb->data + IPW_RX_FRAME_SIZE); + + libipw_rx_mgt(priv->ieee, header, stats); + + if (priv->ieee->iw_mode == IW_MODE_ADHOC && + ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == + IEEE80211_STYPE_PROBE_RESP) || + (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) == + IEEE80211_STYPE_BEACON))) { + if (ether_addr_equal(header->addr3, priv->bssid)) + ipw_add_station(priv, header->addr2); + } + + if (priv->config & CFG_NET_STATS) { + IPW_DEBUG_HC("sending stat packet\n"); + + /* Set the size of the skb to the size of the full + * ipw header and 802.11 frame */ + skb_put(skb, le16_to_cpu(pkt->u.frame.length) + + IPW_RX_FRAME_SIZE); + + /* Advance past the ipw packet header to the 802.11 frame */ + skb_pull(skb, IPW_RX_FRAME_SIZE); + + /* Push the libipw_rx_stats before the 802.11 frame */ + memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats)); + + skb->dev = priv->ieee->dev; + + /* Point raw at the libipw_stats */ + skb_reset_mac_header(skb); + + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = cpu_to_be16(ETH_P_80211_STATS); + memset(skb->cb, 0, sizeof(rxb->skb->cb)); + netif_rx(skb); + rxb->skb = NULL; + } +} + +/* + * Main entry function for receiving a packet with 80211 headers. This + * should be called when ever the FW has notified us that there is a new + * skb in the receive queue. + */ +static void ipw_rx(struct ipw_priv *priv) +{ + struct ipw_rx_mem_buffer *rxb; + struct ipw_rx_packet *pkt; + struct libipw_hdr_4addr *header; + u32 r, i; + u8 network_packet; + u8 fill_rx = 0; + + r = ipw_read32(priv, IPW_RX_READ_INDEX); + ipw_read32(priv, IPW_RX_WRITE_INDEX); + i = priv->rxq->read; + + if (ipw_rx_queue_space (priv->rxq) > (RX_QUEUE_SIZE / 2)) + fill_rx = 1; + + while (i != r) { + rxb = priv->rxq->queue[i]; + if (unlikely(rxb == NULL)) { + printk(KERN_CRIT "Queue not allocated!\n"); + break; + } + priv->rxq->queue[i] = NULL; + + dma_sync_single_for_cpu(&priv->pci_dev->dev, rxb->dma_addr, + IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); + + pkt = (struct ipw_rx_packet *)rxb->skb->data; + IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n", + pkt->header.message_type, + pkt->header.rx_seq_num, pkt->header.control_bits); + + switch (pkt->header.message_type) { + case RX_FRAME_TYPE: /* 802.11 frame */ { + struct libipw_rx_stats stats = { + .rssi = pkt->u.frame.rssi_dbm - + IPW_RSSI_TO_DBM, + .signal = + pkt->u.frame.rssi_dbm - + IPW_RSSI_TO_DBM + 0x100, + .noise = + le16_to_cpu(pkt->u.frame.noise), + .rate = pkt->u.frame.rate, + .mac_time = jiffies, + .received_channel = + pkt->u.frame.received_channel, + .freq = + (pkt->u.frame. + control & (1 << 0)) ? + LIBIPW_24GHZ_BAND : + LIBIPW_52GHZ_BAND, + .len = le16_to_cpu(pkt->u.frame.length), + }; + + if (stats.rssi != 0) + stats.mask |= LIBIPW_STATMASK_RSSI; + if (stats.signal != 0) + stats.mask |= LIBIPW_STATMASK_SIGNAL; + if (stats.noise != 0) + stats.mask |= LIBIPW_STATMASK_NOISE; + if (stats.rate != 0) + stats.mask |= LIBIPW_STATMASK_RATE; + + priv->rx_packets++; + +#ifdef CONFIG_IPW2200_PROMISCUOUS + if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) + ipw_handle_promiscuous_rx(priv, rxb, &stats); +#endif + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { +#ifdef CONFIG_IPW2200_RADIOTAP + + ipw_handle_data_packet_monitor(priv, + rxb, + &stats); +#else + ipw_handle_data_packet(priv, rxb, + &stats); +#endif + break; + } +#endif + + header = + (struct libipw_hdr_4addr *)(rxb->skb-> + data + + IPW_RX_FRAME_SIZE); + /* TODO: Check Ad-Hoc dest/source and make sure + * that we are actually parsing these packets + * correctly -- we should probably use the + * frame control of the packet and disregard + * the current iw_mode */ + + network_packet = + is_network_packet(priv, header); + if (network_packet && priv->assoc_network) { + priv->assoc_network->stats.rssi = + stats.rssi; + priv->exp_avg_rssi = + exponential_average(priv->exp_avg_rssi, + stats.rssi, DEPTH_RSSI); + } + + IPW_DEBUG_RX("Frame: len=%u\n", + le16_to_cpu(pkt->u.frame.length)); + + if (le16_to_cpu(pkt->u.frame.length) < + libipw_get_hdrlen(le16_to_cpu( + header->frame_ctl))) { + IPW_DEBUG_DROP + ("Received packet is too small. " + "Dropping.\n"); + priv->net_dev->stats.rx_errors++; + priv->wstats.discard.misc++; + break; + } + + switch (WLAN_FC_GET_TYPE + (le16_to_cpu(header->frame_ctl))) { + + case IEEE80211_FTYPE_MGMT: + ipw_handle_mgmt_packet(priv, rxb, + &stats); + break; + + case IEEE80211_FTYPE_CTL: + break; + + case IEEE80211_FTYPE_DATA: + if (unlikely(!network_packet || + is_duplicate_packet(priv, + header))) + { + IPW_DEBUG_DROP("Dropping: " + "%pM, " + "%pM, " + "%pM\n", + header->addr1, + header->addr2, + header->addr3); + break; + } + + ipw_handle_data_packet(priv, rxb, + &stats); + + break; + } + break; + } + + case RX_HOST_NOTIFICATION_TYPE:{ + IPW_DEBUG_RX + ("Notification: subtype=%02X flags=%02X size=%d\n", + pkt->u.notification.subtype, + pkt->u.notification.flags, + le16_to_cpu(pkt->u.notification.size)); + ipw_rx_notification(priv, &pkt->u.notification); + break; + } + + default: + IPW_DEBUG_RX("Bad Rx packet of type %d\n", + pkt->header.message_type); + break; + } + + /* For now we just don't re-use anything. We can tweak this + * later to try and re-use notification packets and SKBs that + * fail to Rx correctly */ + if (rxb->skb != NULL) { + dev_kfree_skb_any(rxb->skb); + rxb->skb = NULL; + } + + dma_unmap_single(&priv->pci_dev->dev, rxb->dma_addr, + IPW_RX_BUF_SIZE, DMA_FROM_DEVICE); + list_add_tail(&rxb->list, &priv->rxq->rx_used); + + i = (i + 1) % RX_QUEUE_SIZE; + + /* If there are a lot of unsued frames, restock the Rx queue + * so the ucode won't assert */ + if (fill_rx) { + priv->rxq->read = i; + ipw_rx_queue_replenish(priv); + } + } + + /* Backtrack one entry */ + priv->rxq->read = i; + ipw_rx_queue_restock(priv); +} + +#define DEFAULT_RTS_THRESHOLD 2304U +#define MIN_RTS_THRESHOLD 1U +#define MAX_RTS_THRESHOLD 2304U +#define DEFAULT_BEACON_INTERVAL 100U +#define DEFAULT_SHORT_RETRY_LIMIT 7U +#define DEFAULT_LONG_RETRY_LIMIT 4U + +/* + * ipw_sw_reset + * @option: options to control different reset behaviour + * 0 = reset everything except the 'disable' module_param + * 1 = reset everything and print out driver info (for probe only) + * 2 = reset everything + */ +static int ipw_sw_reset(struct ipw_priv *priv, int option) +{ + int band, modulation; + int old_mode = priv->ieee->iw_mode; + + /* Initialize module parameter values here */ + priv->config = 0; + + /* We default to disabling the LED code as right now it causes + * too many systems to lock up... */ + if (!led_support) + priv->config |= CFG_NO_LED; + + if (associate) + priv->config |= CFG_ASSOCIATE; + else + IPW_DEBUG_INFO("Auto associate disabled.\n"); + + if (auto_create) + priv->config |= CFG_ADHOC_CREATE; + else + IPW_DEBUG_INFO("Auto adhoc creation disabled.\n"); + + priv->config &= ~CFG_STATIC_ESSID; + priv->essid_len = 0; + memset(priv->essid, 0, IW_ESSID_MAX_SIZE); + + if (disable && option) { + priv->status |= STATUS_RF_KILL_SW; + IPW_DEBUG_INFO("Radio disabled.\n"); + } + + if (default_channel != 0) { + priv->config |= CFG_STATIC_CHANNEL; + priv->channel = default_channel; + IPW_DEBUG_INFO("Bind to static channel %d\n", default_channel); + /* TODO: Validate that provided channel is in range */ + } +#ifdef CONFIG_IPW2200_QOS + ipw_qos_init(priv, qos_enable, qos_burst_enable, + burst_duration_CCK, burst_duration_OFDM); +#endif /* CONFIG_IPW2200_QOS */ + + switch (network_mode) { + case 1: + priv->ieee->iw_mode = IW_MODE_ADHOC; + priv->net_dev->type = ARPHRD_ETHER; + + break; +#ifdef CONFIG_IPW2200_MONITOR + case 2: + priv->ieee->iw_mode = IW_MODE_MONITOR; +#ifdef CONFIG_IPW2200_RADIOTAP + priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; +#else + priv->net_dev->type = ARPHRD_IEEE80211; +#endif + break; +#endif + default: + case 0: + priv->net_dev->type = ARPHRD_ETHER; + priv->ieee->iw_mode = IW_MODE_INFRA; + break; + } + + if (hwcrypto) { + priv->ieee->host_encrypt = 0; + priv->ieee->host_encrypt_msdu = 0; + priv->ieee->host_decrypt = 0; + priv->ieee->host_mc_decrypt = 0; + } + IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off"); + + /* IPW2200/2915 is abled to do hardware fragmentation. */ + priv->ieee->host_open_frag = 0; + + if ((priv->pci_dev->device == 0x4223) || + (priv->pci_dev->device == 0x4224)) { + if (option == 1) + printk(KERN_INFO DRV_NAME + ": Detected Intel PRO/Wireless 2915ABG Network " + "Connection\n"); + priv->ieee->abg_true = 1; + band = LIBIPW_52GHZ_BAND | LIBIPW_24GHZ_BAND; + modulation = LIBIPW_OFDM_MODULATION | + LIBIPW_CCK_MODULATION; + priv->adapter = IPW_2915ABG; + priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B; + } else { + if (option == 1) + printk(KERN_INFO DRV_NAME + ": Detected Intel PRO/Wireless 2200BG Network " + "Connection\n"); + + priv->ieee->abg_true = 0; + band = LIBIPW_24GHZ_BAND; + modulation = LIBIPW_OFDM_MODULATION | + LIBIPW_CCK_MODULATION; + priv->adapter = IPW_2200BG; + priv->ieee->mode = IEEE_G | IEEE_B; + } + + priv->ieee->freq_band = band; + priv->ieee->modulation = modulation; + + priv->rates_mask = LIBIPW_DEFAULT_RATES_MASK; + + priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT; + priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT; + + priv->rts_threshold = DEFAULT_RTS_THRESHOLD; + priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT; + priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT; + + /* If power management is turned on, default to AC mode */ + priv->power_mode = IPW_POWER_AC; + priv->tx_power = IPW_TX_POWER_DEFAULT; + + return old_mode == priv->ieee->iw_mode; +} + +/* + * This file defines the Wireless Extension handlers. It does not + * define any methods of hardware manipulation and relies on the + * functions defined in ipw_main to provide the HW interaction. + * + * The exception to this is the use of the ipw_get_ordinal() + * function used to poll the hardware vs. making unnecessary calls. + * + */ + +static int ipw_set_channel(struct ipw_priv *priv, u8 channel) +{ + if (channel == 0) { + IPW_DEBUG_INFO("Setting channel to ANY (0)\n"); + priv->config &= ~CFG_STATIC_CHANNEL; + IPW_DEBUG_ASSOC("Attempting to associate with new " + "parameters.\n"); + ipw_associate(priv); + return 0; + } + + priv->config |= CFG_STATIC_CHANNEL; + + if (priv->channel == channel) { + IPW_DEBUG_INFO("Request to set channel to current value (%d)\n", + channel); + return 0; + } + + IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel); + priv->channel = channel; + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) { + int i; + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_SCAN("Scan abort triggered due to " + "channel change.\n"); + ipw_abort_scan(priv); + } + + for (i = 1000; i && (priv->status & STATUS_SCANNING); i--) + udelay(10); + + if (priv->status & STATUS_SCANNING) + IPW_DEBUG_SCAN("Still scanning...\n"); + else + IPW_DEBUG_SCAN("Took %dms to abort current scan\n", + 1000 - i); + + return 0; + } +#endif /* CONFIG_IPW2200_MONITOR */ + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + return 0; +} + +static int ipw_wx_set_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + const struct libipw_geo *geo = libipw_get_geo(priv->ieee); + struct iw_freq *fwrq = &wrqu->freq; + int ret = 0, i; + u8 channel, flags; + int band; + + if (fwrq->m == 0) { + IPW_DEBUG_WX("SET Freq/Channel -> any\n"); + mutex_lock(&priv->mutex); + ret = ipw_set_channel(priv, 0); + mutex_unlock(&priv->mutex); + return ret; + } + /* if setting by freq convert to channel */ + if (fwrq->e == 1) { + channel = libipw_freq_to_channel(priv->ieee, fwrq->m); + if (channel == 0) + return -EINVAL; + } else + channel = fwrq->m; + + if (!(band = libipw_is_valid_channel(priv->ieee, channel))) + return -EINVAL; + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) { + i = libipw_channel_to_index(priv->ieee, channel); + if (i == -1) + return -EINVAL; + + flags = (band == LIBIPW_24GHZ_BAND) ? + geo->bg[i].flags : geo->a[i].flags; + if (flags & LIBIPW_CH_PASSIVE_ONLY) { + IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n"); + return -EINVAL; + } + } + + IPW_DEBUG_WX("SET Freq/Channel -> %d\n", fwrq->m); + mutex_lock(&priv->mutex); + ret = ipw_set_channel(priv, channel); + mutex_unlock(&priv->mutex); + return ret; +} + +static int ipw_wx_get_freq(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + + wrqu->freq.e = 0; + + /* If we are associated, trying to associate, or have a statically + * configured CHANNEL then return that; otherwise return ANY */ + mutex_lock(&priv->mutex); + if (priv->config & CFG_STATIC_CHANNEL || + priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) { + int i; + + i = libipw_channel_to_index(priv->ieee, priv->channel); + BUG_ON(i == -1); + wrqu->freq.e = 1; + + switch (libipw_is_valid_channel(priv->ieee, priv->channel)) { + case LIBIPW_52GHZ_BAND: + wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000; + break; + + case LIBIPW_24GHZ_BAND: + wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000; + break; + + default: + BUG(); + } + } else + wrqu->freq.m = 0; + + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("GET Freq/Channel -> %d\n", priv->channel); + return 0; +} + +static int ipw_wx_set_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int err = 0; + + IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode); + + switch (wrqu->mode) { +#ifdef CONFIG_IPW2200_MONITOR + case IW_MODE_MONITOR: +#endif + case IW_MODE_ADHOC: + case IW_MODE_INFRA: + break; + case IW_MODE_AUTO: + wrqu->mode = IW_MODE_INFRA; + break; + default: + return -EINVAL; + } + if (wrqu->mode == priv->ieee->iw_mode) + return 0; + + mutex_lock(&priv->mutex); + + ipw_sw_reset(priv, 0); + +#ifdef CONFIG_IPW2200_MONITOR + if (priv->ieee->iw_mode == IW_MODE_MONITOR) + priv->net_dev->type = ARPHRD_ETHER; + + if (wrqu->mode == IW_MODE_MONITOR) +#ifdef CONFIG_IPW2200_RADIOTAP + priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; +#else + priv->net_dev->type = ARPHRD_IEEE80211; +#endif +#endif /* CONFIG_IPW2200_MONITOR */ + + /* Free the existing firmware and reset the fw_loaded + * flag so ipw_load() will bring in the new firmware */ + free_firmware(); + + priv->ieee->iw_mode = wrqu->mode; + + schedule_work(&priv->adapter_restart); + mutex_unlock(&priv->mutex); + return err; +} + +static int ipw_wx_get_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + wrqu->mode = priv->ieee->iw_mode; + IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode); + mutex_unlock(&priv->mutex); + return 0; +} + +/* Values are in microsecond */ +static const s32 timeout_duration[] = { + 350000, + 250000, + 75000, + 37000, + 25000, +}; + +static const s32 period_duration[] = { + 400000, + 700000, + 1000000, + 1000000, + 1000000 +}; + +static int ipw_wx_get_range(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct iw_range *range = (struct iw_range *)extra; + const struct libipw_geo *geo = libipw_get_geo(priv->ieee); + int i = 0, j; + + wrqu->data.length = sizeof(*range); + memset(range, 0, sizeof(*range)); + + /* 54Mbs == ~27 Mb/s real (802.11g) */ + range->throughput = 27 * 1000 * 1000; + + range->max_qual.qual = 100; + /* TODO: Find real max RSSI and stick here */ + range->max_qual.level = 0; + range->max_qual.noise = 0; + range->max_qual.updated = 7; /* Updated all three */ + + range->avg_qual.qual = 70; + /* TODO: Find real 'good' to 'bad' threshold value for RSSI */ + range->avg_qual.level = 0; /* FIXME to real average level */ + range->avg_qual.noise = 0; + range->avg_qual.updated = 7; /* Updated all three */ + mutex_lock(&priv->mutex); + range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES); + + for (i = 0; i < range->num_bitrates; i++) + range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) * + 500000; + + range->max_rts = DEFAULT_RTS_THRESHOLD; + range->min_frag = MIN_FRAG_THRESHOLD; + range->max_frag = MAX_FRAG_THRESHOLD; + + range->encoding_size[0] = 5; + range->encoding_size[1] = 13; + range->num_encoding_sizes = 2; + range->max_encoding_tokens = WEP_KEYS; + + /* Set the Wireless Extension versions */ + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = 18; + + i = 0; + if (priv->ieee->mode & (IEEE_B | IEEE_G)) { + for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) { + if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && + (geo->bg[j].flags & LIBIPW_CH_PASSIVE_ONLY)) + continue; + + range->freq[i].i = geo->bg[j].channel; + range->freq[i].m = geo->bg[j].freq * 100000; + range->freq[i].e = 1; + i++; + } + } + + if (priv->ieee->mode & IEEE_A) { + for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) { + if ((priv->ieee->iw_mode == IW_MODE_ADHOC) && + (geo->a[j].flags & LIBIPW_CH_PASSIVE_ONLY)) + continue; + + range->freq[i].i = geo->a[j].channel; + range->freq[i].m = geo->a[j].freq * 100000; + range->freq[i].e = 1; + i++; + } + } + + range->num_channels = i; + range->num_frequency = i; + + mutex_unlock(&priv->mutex); + + /* Event capability (kernel + driver) */ + range->event_capa[0] = (IW_EVENT_CAPA_K_0 | + IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) | + IW_EVENT_CAPA_MASK(SIOCGIWAP) | + IW_EVENT_CAPA_MASK(SIOCGIWSCAN)); + range->event_capa[1] = IW_EVENT_CAPA_K_1; + + range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | + IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; + + range->scan_capa = IW_SCAN_CAPA_ESSID | IW_SCAN_CAPA_TYPE; + + IPW_DEBUG_WX("GET Range\n"); + return 0; +} + +static int ipw_wx_set_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + + if (wrqu->ap_addr.sa_family != ARPHRD_ETHER) + return -EINVAL; + mutex_lock(&priv->mutex); + if (is_broadcast_ether_addr(wrqu->ap_addr.sa_data) || + is_zero_ether_addr(wrqu->ap_addr.sa_data)) { + /* we disable mandatory BSSID association */ + IPW_DEBUG_WX("Setting AP BSSID to ANY\n"); + priv->config &= ~CFG_STATIC_BSSID; + IPW_DEBUG_ASSOC("Attempting to associate with new " + "parameters.\n"); + ipw_associate(priv); + mutex_unlock(&priv->mutex); + return 0; + } + + priv->config |= CFG_STATIC_BSSID; + if (ether_addr_equal(priv->bssid, wrqu->ap_addr.sa_data)) { + IPW_DEBUG_WX("BSSID set to current BSSID.\n"); + mutex_unlock(&priv->mutex); + return 0; + } + + IPW_DEBUG_WX("Setting mandatory BSSID to %pM\n", + wrqu->ap_addr.sa_data); + + memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN); + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_get_wap(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + + /* If we are associated, trying to associate, or have a statically + * configured BSSID then return that; otherwise return ANY */ + mutex_lock(&priv->mutex); + if (priv->config & CFG_STATIC_BSSID || + priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { + wrqu->ap_addr.sa_family = ARPHRD_ETHER; + memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN); + } else + eth_zero_addr(wrqu->ap_addr.sa_data); + + IPW_DEBUG_WX("Getting WAP BSSID: %pM\n", + wrqu->ap_addr.sa_data); + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_set_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int length; + + mutex_lock(&priv->mutex); + + if (!wrqu->essid.flags) + { + IPW_DEBUG_WX("Setting ESSID to ANY\n"); + ipw_disassociate(priv); + priv->config &= ~CFG_STATIC_ESSID; + ipw_associate(priv); + mutex_unlock(&priv->mutex); + return 0; + } + + length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE); + + priv->config |= CFG_STATIC_ESSID; + + if (priv->essid_len == length && !memcmp(priv->essid, extra, length) + && (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) { + IPW_DEBUG_WX("ESSID set to current ESSID.\n"); + mutex_unlock(&priv->mutex); + return 0; + } + + IPW_DEBUG_WX("Setting ESSID: '%*pE' (%d)\n", length, extra, length); + + priv->essid_len = length; + memcpy(priv->essid, extra, priv->essid_len); + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_get_essid(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + + /* If we are associated, trying to associate, or have a statically + * configured ESSID then return that; otherwise return ANY */ + mutex_lock(&priv->mutex); + if (priv->config & CFG_STATIC_ESSID || + priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) { + IPW_DEBUG_WX("Getting essid: '%*pE'\n", + priv->essid_len, priv->essid); + memcpy(extra, priv->essid, priv->essid_len); + wrqu->essid.length = priv->essid_len; + wrqu->essid.flags = 1; /* active */ + } else { + IPW_DEBUG_WX("Getting essid: ANY\n"); + wrqu->essid.length = 0; + wrqu->essid.flags = 0; /* active */ + } + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_set_nick(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + + IPW_DEBUG_WX("Setting nick to '%s'\n", extra); + if (wrqu->data.length > IW_ESSID_MAX_SIZE) + return -E2BIG; + mutex_lock(&priv->mutex); + wrqu->data.length = min_t(size_t, wrqu->data.length, sizeof(priv->nick)); + memset(priv->nick, 0, sizeof(priv->nick)); + memcpy(priv->nick, extra, wrqu->data.length); + IPW_DEBUG_TRACE("<<\n"); + mutex_unlock(&priv->mutex); + return 0; + +} + +static int ipw_wx_get_nick(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + IPW_DEBUG_WX("Getting nick\n"); + mutex_lock(&priv->mutex); + wrqu->data.length = strlen(priv->nick); + memcpy(extra, priv->nick, wrqu->data.length); + wrqu->data.flags = 1; /* active */ + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_set_sens(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int err = 0; + + IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value); + IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value); + mutex_lock(&priv->mutex); + + if (wrqu->sens.fixed == 0) + { + priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT; + priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT; + goto out; + } + if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) || + (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) { + err = -EINVAL; + goto out; + } + + priv->roaming_threshold = wrqu->sens.value; + priv->disassociate_threshold = 3*wrqu->sens.value; + out: + mutex_unlock(&priv->mutex); + return err; +} + +static int ipw_wx_get_sens(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + wrqu->sens.fixed = 1; + wrqu->sens.value = priv->roaming_threshold; + mutex_unlock(&priv->mutex); + + IPW_DEBUG_WX("GET roaming threshold -> %s %d\n", + wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value); + + return 0; +} + +static int ipw_wx_set_rate(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + /* TODO: We should use semaphores or locks for access to priv */ + struct ipw_priv *priv = libipw_priv(dev); + u32 target_rate = wrqu->bitrate.value; + u32 fixed, mask; + + /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */ + /* value = X, fixed = 1 means only rate X */ + /* value = X, fixed = 0 means all rates lower equal X */ + + if (target_rate == -1) { + fixed = 0; + mask = LIBIPW_DEFAULT_RATES_MASK; + /* Now we should reassociate */ + goto apply; + } + + mask = 0; + fixed = wrqu->bitrate.fixed; + + if (target_rate == 1000000 || !fixed) + mask |= LIBIPW_CCK_RATE_1MB_MASK; + if (target_rate == 1000000) + goto apply; + + if (target_rate == 2000000 || !fixed) + mask |= LIBIPW_CCK_RATE_2MB_MASK; + if (target_rate == 2000000) + goto apply; + + if (target_rate == 5500000 || !fixed) + mask |= LIBIPW_CCK_RATE_5MB_MASK; + if (target_rate == 5500000) + goto apply; + + if (target_rate == 6000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_6MB_MASK; + if (target_rate == 6000000) + goto apply; + + if (target_rate == 9000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_9MB_MASK; + if (target_rate == 9000000) + goto apply; + + if (target_rate == 11000000 || !fixed) + mask |= LIBIPW_CCK_RATE_11MB_MASK; + if (target_rate == 11000000) + goto apply; + + if (target_rate == 12000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_12MB_MASK; + if (target_rate == 12000000) + goto apply; + + if (target_rate == 18000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_18MB_MASK; + if (target_rate == 18000000) + goto apply; + + if (target_rate == 24000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_24MB_MASK; + if (target_rate == 24000000) + goto apply; + + if (target_rate == 36000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_36MB_MASK; + if (target_rate == 36000000) + goto apply; + + if (target_rate == 48000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_48MB_MASK; + if (target_rate == 48000000) + goto apply; + + if (target_rate == 54000000 || !fixed) + mask |= LIBIPW_OFDM_RATE_54MB_MASK; + if (target_rate == 54000000) + goto apply; + + IPW_DEBUG_WX("invalid rate specified, returning error\n"); + return -EINVAL; + + apply: + IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n", + mask, fixed ? "fixed" : "sub-rates"); + mutex_lock(&priv->mutex); + if (mask == LIBIPW_DEFAULT_RATES_MASK) { + priv->config &= ~CFG_FIXED_RATE; + ipw_set_fixed_rate(priv, priv->ieee->mode); + } else + priv->config |= CFG_FIXED_RATE; + + if (priv->rates_mask == mask) { + IPW_DEBUG_WX("Mask set to current mask.\n"); + mutex_unlock(&priv->mutex); + return 0; + } + + priv->rates_mask = mask; + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_get_rate(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + wrqu->bitrate.value = priv->last_rate; + wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0; + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("GET Rate -> %d\n", wrqu->bitrate.value); + return 0; +} + +static int ipw_wx_set_rts(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + if (wrqu->rts.disabled || !wrqu->rts.fixed) + priv->rts_threshold = DEFAULT_RTS_THRESHOLD; + else { + if (wrqu->rts.value < MIN_RTS_THRESHOLD || + wrqu->rts.value > MAX_RTS_THRESHOLD) { + mutex_unlock(&priv->mutex); + return -EINVAL; + } + priv->rts_threshold = wrqu->rts.value; + } + + ipw_send_rts_threshold(priv, priv->rts_threshold); + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("SET RTS Threshold -> %d\n", priv->rts_threshold); + return 0; +} + +static int ipw_wx_get_rts(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + wrqu->rts.value = priv->rts_threshold; + wrqu->rts.fixed = 0; /* no auto select */ + wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD); + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("GET RTS Threshold -> %d\n", wrqu->rts.value); + return 0; +} + +static int ipw_wx_set_txpow(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int err = 0; + + mutex_lock(&priv->mutex); + if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) { + err = -EINPROGRESS; + goto out; + } + + if (!wrqu->power.fixed) + wrqu->power.value = IPW_TX_POWER_DEFAULT; + + if (wrqu->power.flags != IW_TXPOW_DBM) { + err = -EINVAL; + goto out; + } + + if ((wrqu->power.value > IPW_TX_POWER_MAX) || + (wrqu->power.value < IPW_TX_POWER_MIN)) { + err = -EINVAL; + goto out; + } + + priv->tx_power = wrqu->power.value; + err = ipw_set_tx_power(priv); + out: + mutex_unlock(&priv->mutex); + return err; +} + +static int ipw_wx_get_txpow(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + wrqu->power.value = priv->tx_power; + wrqu->power.fixed = 1; + wrqu->power.flags = IW_TXPOW_DBM; + wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0; + mutex_unlock(&priv->mutex); + + IPW_DEBUG_WX("GET TX Power -> %s %d\n", + wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value); + + return 0; +} + +static int ipw_wx_set_frag(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + if (wrqu->frag.disabled || !wrqu->frag.fixed) + priv->ieee->fts = DEFAULT_FTS; + else { + if (wrqu->frag.value < MIN_FRAG_THRESHOLD || + wrqu->frag.value > MAX_FRAG_THRESHOLD) { + mutex_unlock(&priv->mutex); + return -EINVAL; + } + + priv->ieee->fts = wrqu->frag.value & ~0x1; + } + + ipw_send_frag_threshold(priv, wrqu->frag.value); + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("SET Frag Threshold -> %d\n", wrqu->frag.value); + return 0; +} + +static int ipw_wx_get_frag(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + wrqu->frag.value = priv->ieee->fts; + wrqu->frag.fixed = 0; /* no auto select */ + wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS); + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("GET Frag Threshold -> %d\n", wrqu->frag.value); + + return 0; +} + +static int ipw_wx_set_retry(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + + if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled) + return -EINVAL; + + if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) + return 0; + + if (wrqu->retry.value < 0 || wrqu->retry.value >= 255) + return -EINVAL; + + mutex_lock(&priv->mutex); + if (wrqu->retry.flags & IW_RETRY_SHORT) + priv->short_retry_limit = (u8) wrqu->retry.value; + else if (wrqu->retry.flags & IW_RETRY_LONG) + priv->long_retry_limit = (u8) wrqu->retry.value; + else { + priv->short_retry_limit = (u8) wrqu->retry.value; + priv->long_retry_limit = (u8) wrqu->retry.value; + } + + ipw_send_retry_limit(priv, priv->short_retry_limit, + priv->long_retry_limit); + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n", + priv->short_retry_limit, priv->long_retry_limit); + return 0; +} + +static int ipw_wx_get_retry(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + + mutex_lock(&priv->mutex); + wrqu->retry.disabled = 0; + + if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { + mutex_unlock(&priv->mutex); + return -EINVAL; + } + + if (wrqu->retry.flags & IW_RETRY_LONG) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; + wrqu->retry.value = priv->long_retry_limit; + } else if (wrqu->retry.flags & IW_RETRY_SHORT) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; + wrqu->retry.value = priv->short_retry_limit; + } else { + wrqu->retry.flags = IW_RETRY_LIMIT; + wrqu->retry.value = priv->short_retry_limit; + } + mutex_unlock(&priv->mutex); + + IPW_DEBUG_WX("GET retry -> %d\n", wrqu->retry.value); + + return 0; +} + +static int ipw_wx_set_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct iw_scan_req *req = (struct iw_scan_req *)extra; + struct delayed_work *work = NULL; + + mutex_lock(&priv->mutex); + + priv->user_requested_scan = 1; + + if (wrqu->data.length == sizeof(struct iw_scan_req)) { + if (wrqu->data.flags & IW_SCAN_THIS_ESSID) { + int len = min((int)req->essid_len, + (int)sizeof(priv->direct_scan_ssid)); + memcpy(priv->direct_scan_ssid, req->essid, len); + priv->direct_scan_ssid_len = len; + work = &priv->request_direct_scan; + } else if (req->scan_type == IW_SCAN_TYPE_PASSIVE) { + work = &priv->request_passive_scan; + } + } else { + /* Normal active broadcast scan */ + work = &priv->request_scan; + } + + mutex_unlock(&priv->mutex); + + IPW_DEBUG_WX("Start scan\n"); + + schedule_delayed_work(work, 0); + + return 0; +} + +static int ipw_wx_get_scan(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + return libipw_wx_get_scan(priv->ieee, info, wrqu, extra); +} + +static int ipw_wx_set_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key) +{ + struct ipw_priv *priv = libipw_priv(dev); + int ret; + u32 cap = priv->capability; + + mutex_lock(&priv->mutex); + ret = libipw_wx_set_encode(priv->ieee, info, wrqu, key); + + /* In IBSS mode, we need to notify the firmware to update + * the beacon info after we changed the capability. */ + if (cap != priv->capability && + priv->ieee->iw_mode == IW_MODE_ADHOC && + priv->status & STATUS_ASSOCIATED) + ipw_disassociate(priv); + + mutex_unlock(&priv->mutex); + return ret; +} + +static int ipw_wx_get_encode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key) +{ + struct ipw_priv *priv = libipw_priv(dev); + return libipw_wx_get_encode(priv->ieee, info, wrqu, key); +} + +static int ipw_wx_set_power(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int err; + mutex_lock(&priv->mutex); + if (wrqu->power.disabled) { + priv->power_mode = IPW_POWER_LEVEL(priv->power_mode); + err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM); + if (err) { + IPW_DEBUG_WX("failed setting power mode.\n"); + mutex_unlock(&priv->mutex); + return err; + } + IPW_DEBUG_WX("SET Power Management Mode -> off\n"); + mutex_unlock(&priv->mutex); + return 0; + } + + switch (wrqu->power.flags & IW_POWER_MODE) { + case IW_POWER_ON: /* If not specified */ + case IW_POWER_MODE: /* If set all mask */ + case IW_POWER_ALL_R: /* If explicitly state all */ + break; + default: /* Otherwise we don't support it */ + IPW_DEBUG_WX("SET PM Mode: %X not supported.\n", + wrqu->power.flags); + mutex_unlock(&priv->mutex); + return -EOPNOTSUPP; + } + + /* If the user hasn't specified a power management mode yet, default + * to BATTERY */ + if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC) + priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY; + else + priv->power_mode = IPW_POWER_ENABLED | priv->power_mode; + + err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode)); + if (err) { + IPW_DEBUG_WX("failed setting power mode.\n"); + mutex_unlock(&priv->mutex); + return err; + } + + IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode); + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_get_power(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + if (!(priv->power_mode & IPW_POWER_ENABLED)) + wrqu->power.disabled = 1; + else + wrqu->power.disabled = 0; + + mutex_unlock(&priv->mutex); + IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode); + + return 0; +} + +static int ipw_wx_set_powermode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int mode = *(int *)extra; + int err; + + mutex_lock(&priv->mutex); + if ((mode < 1) || (mode > IPW_POWER_LIMIT)) + mode = IPW_POWER_AC; + + if (IPW_POWER_LEVEL(priv->power_mode) != mode) { + err = ipw_send_power_mode(priv, mode); + if (err) { + IPW_DEBUG_WX("failed setting power mode.\n"); + mutex_unlock(&priv->mutex); + return err; + } + priv->power_mode = IPW_POWER_ENABLED | mode; + } + mutex_unlock(&priv->mutex); + return 0; +} + +#define MAX_WX_STRING 80 +static int ipw_wx_get_powermode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int level = IPW_POWER_LEVEL(priv->power_mode); + char *p = extra; + + p += scnprintf(p, MAX_WX_STRING, "Power save level: %d ", level); + + switch (level) { + case IPW_POWER_AC: + p += scnprintf(p, MAX_WX_STRING - (p - extra), "(AC)"); + break; + case IPW_POWER_BATTERY: + p += scnprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)"); + break; + default: + p += scnprintf(p, MAX_WX_STRING - (p - extra), + "(Timeout %dms, Period %dms)", + timeout_duration[level - 1] / 1000, + period_duration[level - 1] / 1000); + } + + if (!(priv->power_mode & IPW_POWER_ENABLED)) + p += scnprintf(p, MAX_WX_STRING - (p - extra), " OFF"); + + wrqu->data.length = p - extra + 1; + + return 0; +} + +static int ipw_wx_set_wireless_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int mode = *(int *)extra; + u8 band = 0, modulation = 0; + + if (mode == 0 || mode & ~IEEE_MODE_MASK) { + IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode); + return -EINVAL; + } + mutex_lock(&priv->mutex); + if (priv->adapter == IPW_2915ABG) { + priv->ieee->abg_true = 1; + if (mode & IEEE_A) { + band |= LIBIPW_52GHZ_BAND; + modulation |= LIBIPW_OFDM_MODULATION; + } else + priv->ieee->abg_true = 0; + } else { + if (mode & IEEE_A) { + IPW_WARNING("Attempt to set 2200BG into " + "802.11a mode\n"); + mutex_unlock(&priv->mutex); + return -EINVAL; + } + + priv->ieee->abg_true = 0; + } + + if (mode & IEEE_B) { + band |= LIBIPW_24GHZ_BAND; + modulation |= LIBIPW_CCK_MODULATION; + } else + priv->ieee->abg_true = 0; + + if (mode & IEEE_G) { + band |= LIBIPW_24GHZ_BAND; + modulation |= LIBIPW_OFDM_MODULATION; + } else + priv->ieee->abg_true = 0; + + priv->ieee->mode = mode; + priv->ieee->freq_band = band; + priv->ieee->modulation = modulation; + init_supported_rates(priv, &priv->rates); + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n"); + if (!ipw_disassociate(priv)) { + ipw_send_supported_rates(priv, &priv->rates); + ipw_associate(priv); + } + + /* Update the band LEDs */ + ipw_led_band_on(priv); + + IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n", + mode & IEEE_A ? 'a' : '.', + mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.'); + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_get_wireless_mode(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + switch (priv->ieee->mode) { + case IEEE_A: + strncpy(extra, "802.11a (1)", MAX_WX_STRING); + break; + case IEEE_B: + strncpy(extra, "802.11b (2)", MAX_WX_STRING); + break; + case IEEE_A | IEEE_B: + strncpy(extra, "802.11ab (3)", MAX_WX_STRING); + break; + case IEEE_G: + strncpy(extra, "802.11g (4)", MAX_WX_STRING); + break; + case IEEE_A | IEEE_G: + strncpy(extra, "802.11ag (5)", MAX_WX_STRING); + break; + case IEEE_B | IEEE_G: + strncpy(extra, "802.11bg (6)", MAX_WX_STRING); + break; + case IEEE_A | IEEE_B | IEEE_G: + strncpy(extra, "802.11abg (7)", MAX_WX_STRING); + break; + default: + strncpy(extra, "unknown", MAX_WX_STRING); + break; + } + extra[MAX_WX_STRING - 1] = '\0'; + + IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra); + + wrqu->data.length = strlen(extra) + 1; + mutex_unlock(&priv->mutex); + + return 0; +} + +static int ipw_wx_set_preamble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int mode = *(int *)extra; + mutex_lock(&priv->mutex); + /* Switching from SHORT -> LONG requires a disassociation */ + if (mode == 1) { + if (!(priv->config & CFG_PREAMBLE_LONG)) { + priv->config |= CFG_PREAMBLE_LONG; + + /* Network configuration changed -- force [re]association */ + IPW_DEBUG_ASSOC + ("[re]association triggered due to preamble change.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + } + goto done; + } + + if (mode == 0) { + priv->config &= ~CFG_PREAMBLE_LONG; + goto done; + } + mutex_unlock(&priv->mutex); + return -EINVAL; + + done: + mutex_unlock(&priv->mutex); + return 0; +} + +static int ipw_wx_get_preamble(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + mutex_lock(&priv->mutex); + if (priv->config & CFG_PREAMBLE_LONG) + snprintf(wrqu->name, IFNAMSIZ, "long (1)"); + else + snprintf(wrqu->name, IFNAMSIZ, "auto (0)"); + mutex_unlock(&priv->mutex); + return 0; +} + +#ifdef CONFIG_IPW2200_MONITOR +static int ipw_wx_set_monitor(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + int *parms = (int *)extra; + int enable = (parms[0] > 0); + mutex_lock(&priv->mutex); + IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]); + if (enable) { + if (priv->ieee->iw_mode != IW_MODE_MONITOR) { +#ifdef CONFIG_IPW2200_RADIOTAP + priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP; +#else + priv->net_dev->type = ARPHRD_IEEE80211; +#endif + schedule_work(&priv->adapter_restart); + } + + ipw_set_channel(priv, parms[1]); + } else { + if (priv->ieee->iw_mode != IW_MODE_MONITOR) { + mutex_unlock(&priv->mutex); + return 0; + } + priv->net_dev->type = ARPHRD_ETHER; + schedule_work(&priv->adapter_restart); + } + mutex_unlock(&priv->mutex); + return 0; +} + +#endif /* CONFIG_IPW2200_MONITOR */ + +static int ipw_wx_reset(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + IPW_DEBUG_WX("RESET\n"); + schedule_work(&priv->adapter_restart); + return 0; +} + +static int ipw_wx_sw_reset(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ipw_priv *priv = libipw_priv(dev); + union iwreq_data wrqu_sec = { + .encoding = { + .flags = IW_ENCODE_DISABLED, + }, + }; + int ret; + + IPW_DEBUG_WX("SW_RESET\n"); + + mutex_lock(&priv->mutex); + + ret = ipw_sw_reset(priv, 2); + if (!ret) { + free_firmware(); + ipw_adapter_restart(priv); + } + + /* The SW reset bit might have been toggled on by the 'disable' + * module parameter, so take appropriate action */ + ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW); + + mutex_unlock(&priv->mutex); + libipw_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL); + mutex_lock(&priv->mutex); + + if (!(priv->status & STATUS_RF_KILL_MASK)) { + /* Configuration likely changed -- force [re]association */ + IPW_DEBUG_ASSOC("[re]association triggered due to sw " + "reset.\n"); + if (!ipw_disassociate(priv)) + ipw_associate(priv); + } + + mutex_unlock(&priv->mutex); + + return 0; +} + +/* Rebase the WE IOCTLs to zero for the handler array */ +static iw_handler ipw_wx_handlers[] = { + IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname), + IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq), + IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq), + IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode), + IW_HANDLER(SIOCGIWMODE, ipw_wx_get_mode), + IW_HANDLER(SIOCSIWSENS, ipw_wx_set_sens), + IW_HANDLER(SIOCGIWSENS, ipw_wx_get_sens), + IW_HANDLER(SIOCGIWRANGE, ipw_wx_get_range), + IW_HANDLER(SIOCSIWAP, ipw_wx_set_wap), + IW_HANDLER(SIOCGIWAP, ipw_wx_get_wap), + IW_HANDLER(SIOCSIWSCAN, ipw_wx_set_scan), + IW_HANDLER(SIOCGIWSCAN, ipw_wx_get_scan), + IW_HANDLER(SIOCSIWESSID, ipw_wx_set_essid), + IW_HANDLER(SIOCGIWESSID, ipw_wx_get_essid), + IW_HANDLER(SIOCSIWNICKN, ipw_wx_set_nick), + IW_HANDLER(SIOCGIWNICKN, ipw_wx_get_nick), + IW_HANDLER(SIOCSIWRATE, ipw_wx_set_rate), + IW_HANDLER(SIOCGIWRATE, ipw_wx_get_rate), + IW_HANDLER(SIOCSIWRTS, ipw_wx_set_rts), + IW_HANDLER(SIOCGIWRTS, ipw_wx_get_rts), + IW_HANDLER(SIOCSIWFRAG, ipw_wx_set_frag), + IW_HANDLER(SIOCGIWFRAG, ipw_wx_get_frag), + IW_HANDLER(SIOCSIWTXPOW, ipw_wx_set_txpow), + IW_HANDLER(SIOCGIWTXPOW, ipw_wx_get_txpow), + IW_HANDLER(SIOCSIWRETRY, ipw_wx_set_retry), + IW_HANDLER(SIOCGIWRETRY, ipw_wx_get_retry), + IW_HANDLER(SIOCSIWENCODE, ipw_wx_set_encode), + IW_HANDLER(SIOCGIWENCODE, ipw_wx_get_encode), + IW_HANDLER(SIOCSIWPOWER, ipw_wx_set_power), + IW_HANDLER(SIOCGIWPOWER, ipw_wx_get_power), + IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), + IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), + IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), + IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), + IW_HANDLER(SIOCSIWGENIE, ipw_wx_set_genie), + IW_HANDLER(SIOCGIWGENIE, ipw_wx_get_genie), + IW_HANDLER(SIOCSIWMLME, ipw_wx_set_mlme), + IW_HANDLER(SIOCSIWAUTH, ipw_wx_set_auth), + IW_HANDLER(SIOCGIWAUTH, ipw_wx_get_auth), + IW_HANDLER(SIOCSIWENCODEEXT, ipw_wx_set_encodeext), + IW_HANDLER(SIOCGIWENCODEEXT, ipw_wx_get_encodeext), +}; + +enum { + IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV, + IPW_PRIV_GET_POWER, + IPW_PRIV_SET_MODE, + IPW_PRIV_GET_MODE, + IPW_PRIV_SET_PREAMBLE, + IPW_PRIV_GET_PREAMBLE, + IPW_PRIV_RESET, + IPW_PRIV_SW_RESET, +#ifdef CONFIG_IPW2200_MONITOR + IPW_PRIV_SET_MONITOR, +#endif +}; + +static struct iw_priv_args ipw_priv_args[] = { + { + .cmd = IPW_PRIV_SET_POWER, + .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + .name = "set_power"}, + { + .cmd = IPW_PRIV_GET_POWER, + .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, + .name = "get_power"}, + { + .cmd = IPW_PRIV_SET_MODE, + .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + .name = "set_mode"}, + { + .cmd = IPW_PRIV_GET_MODE, + .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING, + .name = "get_mode"}, + { + .cmd = IPW_PRIV_SET_PREAMBLE, + .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + .name = "set_preamble"}, + { + .cmd = IPW_PRIV_GET_PREAMBLE, + .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, + .name = "get_preamble"}, + { + IPW_PRIV_RESET, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"}, + { + IPW_PRIV_SW_RESET, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"}, +#ifdef CONFIG_IPW2200_MONITOR + { + IPW_PRIV_SET_MONITOR, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"}, +#endif /* CONFIG_IPW2200_MONITOR */ +}; + +static iw_handler ipw_priv_handler[] = { + ipw_wx_set_powermode, + ipw_wx_get_powermode, + ipw_wx_set_wireless_mode, + ipw_wx_get_wireless_mode, + ipw_wx_set_preamble, + ipw_wx_get_preamble, + ipw_wx_reset, + ipw_wx_sw_reset, +#ifdef CONFIG_IPW2200_MONITOR + ipw_wx_set_monitor, +#endif +}; + +static const struct iw_handler_def ipw_wx_handler_def = { + .standard = ipw_wx_handlers, + .num_standard = ARRAY_SIZE(ipw_wx_handlers), + .num_private = ARRAY_SIZE(ipw_priv_handler), + .num_private_args = ARRAY_SIZE(ipw_priv_args), + .private = ipw_priv_handler, + .private_args = ipw_priv_args, + .get_wireless_stats = ipw_get_wireless_stats, +}; + +/* + * Get wireless statistics. + * Called by /proc/net/wireless + * Also called by SIOCGIWSTATS + */ +static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct iw_statistics *wstats; + + wstats = &priv->wstats; + + /* if hw is disabled, then ipw_get_ordinal() can't be called. + * netdev->get_wireless_stats seems to be called before fw is + * initialized. STATUS_ASSOCIATED will only be set if the hw is up + * and associated; if not associcated, the values are all meaningless + * anyway, so set them all to NULL and INVALID */ + if (!(priv->status & STATUS_ASSOCIATED)) { + wstats->miss.beacon = 0; + wstats->discard.retries = 0; + wstats->qual.qual = 0; + wstats->qual.level = 0; + wstats->qual.noise = 0; + wstats->qual.updated = 7; + wstats->qual.updated |= IW_QUAL_NOISE_INVALID | + IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID; + return wstats; + } + + wstats->qual.qual = priv->quality; + wstats->qual.level = priv->exp_avg_rssi; + wstats->qual.noise = priv->exp_avg_noise; + wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | + IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM; + + wstats->miss.beacon = average_value(&priv->average_missed_beacons); + wstats->discard.retries = priv->last_tx_failures; + wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable; + +/* if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len)) + goto fail_get_ordinal; + wstats->discard.retries += tx_retry; */ + + return wstats; +} + +/* net device stuff */ + +static void init_sys_config(struct ipw_sys_config *sys_config) +{ + memset(sys_config, 0, sizeof(struct ipw_sys_config)); + sys_config->bt_coexistence = 0; + sys_config->answer_broadcast_ssid_probe = 0; + sys_config->accept_all_data_frames = 0; + sys_config->accept_non_directed_frames = 1; + sys_config->exclude_unicast_unencrypted = 0; + sys_config->disable_unicast_decryption = 1; + sys_config->exclude_multicast_unencrypted = 0; + sys_config->disable_multicast_decryption = 1; + if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B) + antenna = CFG_SYS_ANTENNA_BOTH; + sys_config->antenna_diversity = antenna; + sys_config->pass_crc_to_host = 0; /* TODO: See if 1 gives us FCS */ + sys_config->dot11g_auto_detection = 0; + sys_config->enable_cts_to_self = 0; + sys_config->bt_coexist_collision_thr = 0; + sys_config->pass_noise_stats_to_host = 1; /* 1 -- fix for 256 */ + sys_config->silence_threshold = 0x1e; +} + +static int ipw_net_open(struct net_device *dev) +{ + IPW_DEBUG_INFO("dev->open\n"); + netif_start_queue(dev); + return 0; +} + +static int ipw_net_stop(struct net_device *dev) +{ + IPW_DEBUG_INFO("dev->close\n"); + netif_stop_queue(dev); + return 0; +} + +/* +todo: + +modify to send one tfd per fragment instead of using chunking. otherwise +we need to heavily modify the libipw_skb_to_txb. +*/ + +static int ipw_tx_skb(struct ipw_priv *priv, struct libipw_txb *txb, + int pri) +{ + struct libipw_hdr_3addrqos *hdr = (struct libipw_hdr_3addrqos *) + txb->fragments[0]->data; + int i = 0; + struct tfd_frame *tfd; +#ifdef CONFIG_IPW2200_QOS + int tx_id = ipw_get_tx_queue_number(priv, pri); + struct clx2_tx_queue *txq = &priv->txq[tx_id]; +#else + struct clx2_tx_queue *txq = &priv->txq[0]; +#endif + struct clx2_queue *q = &txq->q; + u8 id, hdr_len, unicast; + int fc; + + if (!(priv->status & STATUS_ASSOCIATED)) + goto drop; + + hdr_len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); + switch (priv->ieee->iw_mode) { + case IW_MODE_ADHOC: + unicast = !is_multicast_ether_addr(hdr->addr1); + id = ipw_find_station(priv, hdr->addr1); + if (id == IPW_INVALID_STATION) { + id = ipw_add_station(priv, hdr->addr1); + if (id == IPW_INVALID_STATION) { + IPW_WARNING("Attempt to send data to " + "invalid cell: %pM\n", + hdr->addr1); + goto drop; + } + } + break; + + case IW_MODE_INFRA: + default: + unicast = !is_multicast_ether_addr(hdr->addr3); + id = 0; + break; + } + + tfd = &txq->bd[q->first_empty]; + txq->txb[q->first_empty] = txb; + memset(tfd, 0, sizeof(*tfd)); + tfd->u.data.station_number = id; + + tfd->control_flags.message_type = TX_FRAME_TYPE; + tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK; + + tfd->u.data.cmd_id = DINO_CMD_TX; + tfd->u.data.len = cpu_to_le16(txb->payload_size); + + if (priv->assoc_request.ieee_mode == IPW_B_MODE) + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK; + else + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM; + + if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE) + tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE; + + fc = le16_to_cpu(hdr->frame_ctl); + hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS); + + memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len); + + if (likely(unicast)) + tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; + + if (txb->encrypted && !priv->ieee->host_encrypt) { + switch (priv->ieee->sec.level) { + case SEC_LEVEL_3: + tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= + cpu_to_le16(IEEE80211_FCTL_PROTECTED); + /* XXX: ACK flag must be set for CCMP even if it + * is a multicast/broadcast packet, because CCMP + * group communication encrypted by GTK is + * actually done by the AP. */ + if (!unicast) + tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD; + + tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM; + tfd->u.data.key_index = 0; + tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE; + break; + case SEC_LEVEL_2: + tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= + cpu_to_le16(IEEE80211_FCTL_PROTECTED); + tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP; + tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP; + tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE; + break; + case SEC_LEVEL_1: + tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |= + cpu_to_le16(IEEE80211_FCTL_PROTECTED); + tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx; + if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <= + 40) + tfd->u.data.key_index |= DCT_WEP_KEY_64Bit; + else + tfd->u.data.key_index |= DCT_WEP_KEY_128Bit; + break; + case SEC_LEVEL_0: + break; + default: + printk(KERN_ERR "Unknown security level %d\n", + priv->ieee->sec.level); + break; + } + } else + /* No hardware encryption */ + tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP; + +#ifdef CONFIG_IPW2200_QOS + if (fc & IEEE80211_STYPE_QOS_DATA) + ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data)); +#endif /* CONFIG_IPW2200_QOS */ + + /* payload */ + tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2), + txb->nr_frags)); + IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n", + txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks)); + for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) { + IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n", + i, le32_to_cpu(tfd->u.data.num_chunks), + txb->fragments[i]->len - hdr_len); + IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n", + i, tfd->u.data.num_chunks, + txb->fragments[i]->len - hdr_len); + printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len, + txb->fragments[i]->len - hdr_len); + + tfd->u.data.chunk_ptr[i] = + cpu_to_le32(dma_map_single(&priv->pci_dev->dev, + txb->fragments[i]->data + hdr_len, + txb->fragments[i]->len - hdr_len, + DMA_TO_DEVICE)); + tfd->u.data.chunk_len[i] = + cpu_to_le16(txb->fragments[i]->len - hdr_len); + } + + if (i != txb->nr_frags) { + struct sk_buff *skb; + u16 remaining_bytes = 0; + int j; + + for (j = i; j < txb->nr_frags; j++) + remaining_bytes += txb->fragments[j]->len - hdr_len; + + printk(KERN_INFO "Trying to reallocate for %d bytes\n", + remaining_bytes); + skb = alloc_skb(remaining_bytes, GFP_ATOMIC); + if (skb != NULL) { + tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes); + for (j = i; j < txb->nr_frags; j++) { + int size = txb->fragments[j]->len - hdr_len; + + printk(KERN_INFO "Adding frag %d %d...\n", + j, size); + skb_put_data(skb, + txb->fragments[j]->data + hdr_len, + size); + } + dev_kfree_skb_any(txb->fragments[i]); + txb->fragments[i] = skb; + tfd->u.data.chunk_ptr[i] = + cpu_to_le32(dma_map_single(&priv->pci_dev->dev, + skb->data, + remaining_bytes, + DMA_TO_DEVICE)); + + le32_add_cpu(&tfd->u.data.num_chunks, 1); + } + } + + /* kick DMA */ + q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd); + ipw_write32(priv, q->reg_w, q->first_empty); + + if (ipw_tx_queue_space(q) < q->high_mark) + netif_stop_queue(priv->net_dev); + + return NETDEV_TX_OK; + + drop: + IPW_DEBUG_DROP("Silently dropping Tx packet.\n"); + libipw_txb_free(txb); + return NETDEV_TX_OK; +} + +static int ipw_net_is_queue_full(struct net_device *dev, int pri) +{ + struct ipw_priv *priv = libipw_priv(dev); +#ifdef CONFIG_IPW2200_QOS + int tx_id = ipw_get_tx_queue_number(priv, pri); + struct clx2_tx_queue *txq = &priv->txq[tx_id]; +#else + struct clx2_tx_queue *txq = &priv->txq[0]; +#endif /* CONFIG_IPW2200_QOS */ + + if (ipw_tx_queue_space(&txq->q) < txq->q.high_mark) + return 1; + + return 0; +} + +#ifdef CONFIG_IPW2200_PROMISCUOUS +static void ipw_handle_promiscuous_tx(struct ipw_priv *priv, + struct libipw_txb *txb) +{ + struct libipw_rx_stats dummystats; + struct ieee80211_hdr *hdr; + u8 n; + u16 filter = priv->prom_priv->filter; + int hdr_only = 0; + + if (filter & IPW_PROM_NO_TX) + return; + + memset(&dummystats, 0, sizeof(dummystats)); + + /* Filtering of fragment chains is done against the first fragment */ + hdr = (void *)txb->fragments[0]->data; + if (libipw_is_management(le16_to_cpu(hdr->frame_control))) { + if (filter & IPW_PROM_NO_MGMT) + return; + if (filter & IPW_PROM_MGMT_HEADER_ONLY) + hdr_only = 1; + } else if (libipw_is_control(le16_to_cpu(hdr->frame_control))) { + if (filter & IPW_PROM_NO_CTL) + return; + if (filter & IPW_PROM_CTL_HEADER_ONLY) + hdr_only = 1; + } else if (libipw_is_data(le16_to_cpu(hdr->frame_control))) { + if (filter & IPW_PROM_NO_DATA) + return; + if (filter & IPW_PROM_DATA_HEADER_ONLY) + hdr_only = 1; + } + + for(n=0; n<txb->nr_frags; ++n) { + struct sk_buff *src = txb->fragments[n]; + struct sk_buff *dst; + struct ieee80211_radiotap_header *rt_hdr; + int len; + + if (hdr_only) { + hdr = (void *)src->data; + len = libipw_get_hdrlen(le16_to_cpu(hdr->frame_control)); + } else + len = src->len; + + dst = alloc_skb(len + sizeof(*rt_hdr) + sizeof(u16)*2, GFP_ATOMIC); + if (!dst) + continue; + + rt_hdr = skb_put(dst, sizeof(*rt_hdr)); + + rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION; + rt_hdr->it_pad = 0; + rt_hdr->it_present = 0; /* after all, it's just an idea */ + rt_hdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_CHANNEL); + + *(__le16*)skb_put(dst, sizeof(u16)) = cpu_to_le16( + ieee80211chan2mhz(priv->channel)); + if (priv->channel > 14) /* 802.11a */ + *(__le16*)skb_put(dst, sizeof(u16)) = + cpu_to_le16(IEEE80211_CHAN_OFDM | + IEEE80211_CHAN_5GHZ); + else if (priv->ieee->mode == IEEE_B) /* 802.11b */ + *(__le16*)skb_put(dst, sizeof(u16)) = + cpu_to_le16(IEEE80211_CHAN_CCK | + IEEE80211_CHAN_2GHZ); + else /* 802.11g */ + *(__le16*)skb_put(dst, sizeof(u16)) = + cpu_to_le16(IEEE80211_CHAN_OFDM | + IEEE80211_CHAN_2GHZ); + + rt_hdr->it_len = cpu_to_le16(dst->len); + + skb_copy_from_linear_data(src, skb_put(dst, len), len); + + if (!libipw_rx(priv->prom_priv->ieee, dst, &dummystats)) + dev_kfree_skb_any(dst); + } +} +#endif + +static netdev_tx_t ipw_net_hard_start_xmit(struct libipw_txb *txb, + struct net_device *dev, int pri) +{ + struct ipw_priv *priv = libipw_priv(dev); + unsigned long flags; + netdev_tx_t ret; + + IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size); + spin_lock_irqsave(&priv->lock, flags); + +#ifdef CONFIG_IPW2200_PROMISCUOUS + if (rtap_iface && netif_running(priv->prom_net_dev)) + ipw_handle_promiscuous_tx(priv, txb); +#endif + + ret = ipw_tx_skb(priv, txb, pri); + if (ret == NETDEV_TX_OK) + __ipw_led_activity_on(priv); + spin_unlock_irqrestore(&priv->lock, flags); + + return ret; +} + +static void ipw_net_set_multicast_list(struct net_device *dev) +{ + +} + +static int ipw_net_set_mac_address(struct net_device *dev, void *p) +{ + struct ipw_priv *priv = libipw_priv(dev); + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + mutex_lock(&priv->mutex); + priv->config |= CFG_CUSTOM_MAC; + memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN); + printk(KERN_INFO "%s: Setting MAC to %pM\n", + priv->net_dev->name, priv->mac_addr); + schedule_work(&priv->adapter_restart); + mutex_unlock(&priv->mutex); + return 0; +} + +static void ipw_ethtool_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct ipw_priv *p = libipw_priv(dev); + char vers[64]; + char date[32]; + u32 len; + + strscpy(info->driver, DRV_NAME, sizeof(info->driver)); + strscpy(info->version, DRV_VERSION, sizeof(info->version)); + + len = sizeof(vers); + ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len); + len = sizeof(date); + ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len); + + snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)", + vers, date); + strscpy(info->bus_info, pci_name(p->pci_dev), + sizeof(info->bus_info)); +} + +static u32 ipw_ethtool_get_link(struct net_device *dev) +{ + struct ipw_priv *priv = libipw_priv(dev); + return (priv->status & STATUS_ASSOCIATED) != 0; +} + +static int ipw_ethtool_get_eeprom_len(struct net_device *dev) +{ + return IPW_EEPROM_IMAGE_SIZE; +} + +static int ipw_ethtool_get_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 * bytes) +{ + struct ipw_priv *p = libipw_priv(dev); + + if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) + return -EINVAL; + mutex_lock(&p->mutex); + memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len); + mutex_unlock(&p->mutex); + return 0; +} + +static int ipw_ethtool_set_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 * bytes) +{ + struct ipw_priv *p = libipw_priv(dev); + int i; + + if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE) + return -EINVAL; + mutex_lock(&p->mutex); + memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len); + for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++) + ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]); + mutex_unlock(&p->mutex); + return 0; +} + +static const struct ethtool_ops ipw_ethtool_ops = { + .get_link = ipw_ethtool_get_link, + .get_drvinfo = ipw_ethtool_get_drvinfo, + .get_eeprom_len = ipw_ethtool_get_eeprom_len, + .get_eeprom = ipw_ethtool_get_eeprom, + .set_eeprom = ipw_ethtool_set_eeprom, +}; + +static irqreturn_t ipw_isr(int irq, void *data) +{ + struct ipw_priv *priv = data; + u32 inta, inta_mask; + + if (!priv) + return IRQ_NONE; + + spin_lock(&priv->irq_lock); + + if (!(priv->status & STATUS_INT_ENABLED)) { + /* IRQ is disabled */ + goto none; + } + + inta = ipw_read32(priv, IPW_INTA_RW); + inta_mask = ipw_read32(priv, IPW_INTA_MASK_R); + + if (inta == 0xFFFFFFFF) { + /* Hardware disappeared */ + IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n"); + goto none; + } + + if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) { + /* Shared interrupt */ + goto none; + } + + /* tell the device to stop sending interrupts */ + __ipw_disable_interrupts(priv); + + /* ack current interrupts */ + inta &= (IPW_INTA_MASK_ALL & inta_mask); + ipw_write32(priv, IPW_INTA_RW, inta); + + /* Cache INTA value for our tasklet */ + priv->isr_inta = inta; + + tasklet_schedule(&priv->irq_tasklet); + + spin_unlock(&priv->irq_lock); + + return IRQ_HANDLED; + none: + spin_unlock(&priv->irq_lock); + return IRQ_NONE; +} + +static void ipw_rf_kill(void *adapter) +{ + struct ipw_priv *priv = adapter; + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + + if (rf_kill_active(priv)) { + IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n"); + schedule_delayed_work(&priv->rf_kill, 2 * HZ); + goto exit_unlock; + } + + /* RF Kill is now disabled, so bring the device back up */ + + if (!(priv->status & STATUS_RF_KILL_MASK)) { + IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting " + "device\n"); + + /* we can not do an adapter restart while inside an irq lock */ + schedule_work(&priv->adapter_restart); + } else + IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still " + "enabled\n"); + + exit_unlock: + spin_unlock_irqrestore(&priv->lock, flags); +} + +static void ipw_bg_rf_kill(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, rf_kill.work); + mutex_lock(&priv->mutex); + ipw_rf_kill(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_link_up(struct ipw_priv *priv) +{ + priv->last_seq_num = -1; + priv->last_frag_num = -1; + priv->last_packet_time = 0; + + netif_carrier_on(priv->net_dev); + + cancel_delayed_work(&priv->request_scan); + cancel_delayed_work(&priv->request_direct_scan); + cancel_delayed_work(&priv->request_passive_scan); + cancel_delayed_work(&priv->scan_event); + ipw_reset_stats(priv); + /* Ensure the rate is updated immediately */ + priv->last_rate = ipw_get_current_rate(priv); + ipw_gather_stats(priv); + ipw_led_link_up(priv); + notify_wx_assoc_event(priv); + + if (priv->config & CFG_BACKGROUND_SCAN) + schedule_delayed_work(&priv->request_scan, HZ); +} + +static void ipw_bg_link_up(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, link_up); + mutex_lock(&priv->mutex); + ipw_link_up(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_link_down(struct ipw_priv *priv) +{ + ipw_led_link_down(priv); + netif_carrier_off(priv->net_dev); + notify_wx_assoc_event(priv); + + /* Cancel any queued work ... */ + cancel_delayed_work(&priv->request_scan); + cancel_delayed_work(&priv->request_direct_scan); + cancel_delayed_work(&priv->request_passive_scan); + cancel_delayed_work(&priv->adhoc_check); + cancel_delayed_work(&priv->gather_stats); + + ipw_reset_stats(priv); + + if (!(priv->status & STATUS_EXIT_PENDING)) { + /* Queue up another scan... */ + schedule_delayed_work(&priv->request_scan, 0); + } else + cancel_delayed_work(&priv->scan_event); +} + +static void ipw_bg_link_down(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, link_down); + mutex_lock(&priv->mutex); + ipw_link_down(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_setup_deferred_work(struct ipw_priv *priv) +{ + init_waitqueue_head(&priv->wait_command_queue); + init_waitqueue_head(&priv->wait_state); + + INIT_DELAYED_WORK(&priv->adhoc_check, ipw_bg_adhoc_check); + INIT_WORK(&priv->associate, ipw_bg_associate); + INIT_WORK(&priv->disassociate, ipw_bg_disassociate); + INIT_WORK(&priv->system_config, ipw_system_config); + INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish); + INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart); + INIT_DELAYED_WORK(&priv->rf_kill, ipw_bg_rf_kill); + INIT_WORK(&priv->up, ipw_bg_up); + INIT_WORK(&priv->down, ipw_bg_down); + INIT_DELAYED_WORK(&priv->request_scan, ipw_request_scan); + INIT_DELAYED_WORK(&priv->request_direct_scan, ipw_request_direct_scan); + INIT_DELAYED_WORK(&priv->request_passive_scan, ipw_request_passive_scan); + INIT_DELAYED_WORK(&priv->scan_event, ipw_scan_event); + INIT_DELAYED_WORK(&priv->gather_stats, ipw_bg_gather_stats); + INIT_WORK(&priv->abort_scan, ipw_bg_abort_scan); + INIT_WORK(&priv->roam, ipw_bg_roam); + INIT_DELAYED_WORK(&priv->scan_check, ipw_bg_scan_check); + INIT_WORK(&priv->link_up, ipw_bg_link_up); + INIT_WORK(&priv->link_down, ipw_bg_link_down); + INIT_DELAYED_WORK(&priv->led_link_on, ipw_bg_led_link_on); + INIT_DELAYED_WORK(&priv->led_link_off, ipw_bg_led_link_off); + INIT_DELAYED_WORK(&priv->led_act_off, ipw_bg_led_activity_off); + INIT_WORK(&priv->merge_networks, ipw_merge_adhoc_network); + +#ifdef CONFIG_IPW2200_QOS + INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate); +#endif /* CONFIG_IPW2200_QOS */ + + tasklet_setup(&priv->irq_tasklet, ipw_irq_tasklet); +} + +static void shim__set_security(struct net_device *dev, + struct libipw_security *sec) +{ + struct ipw_priv *priv = libipw_priv(dev); + int i; + for (i = 0; i < 4; i++) { + if (sec->flags & (1 << i)) { + priv->ieee->sec.encode_alg[i] = sec->encode_alg[i]; + priv->ieee->sec.key_sizes[i] = sec->key_sizes[i]; + if (sec->key_sizes[i] == 0) + priv->ieee->sec.flags &= ~(1 << i); + else { + memcpy(priv->ieee->sec.keys[i], sec->keys[i], + sec->key_sizes[i]); + priv->ieee->sec.flags |= (1 << i); + } + priv->status |= STATUS_SECURITY_UPDATED; + } else if (sec->level != SEC_LEVEL_1) + priv->ieee->sec.flags &= ~(1 << i); + } + + if (sec->flags & SEC_ACTIVE_KEY) { + priv->ieee->sec.active_key = sec->active_key; + priv->ieee->sec.flags |= SEC_ACTIVE_KEY; + priv->status |= STATUS_SECURITY_UPDATED; + } else + priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY; + + if ((sec->flags & SEC_AUTH_MODE) && + (priv->ieee->sec.auth_mode != sec->auth_mode)) { + priv->ieee->sec.auth_mode = sec->auth_mode; + priv->ieee->sec.flags |= SEC_AUTH_MODE; + if (sec->auth_mode == WLAN_AUTH_SHARED_KEY) + priv->capability |= CAP_SHARED_KEY; + else + priv->capability &= ~CAP_SHARED_KEY; + priv->status |= STATUS_SECURITY_UPDATED; + } + + if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) { + priv->ieee->sec.flags |= SEC_ENABLED; + priv->ieee->sec.enabled = sec->enabled; + priv->status |= STATUS_SECURITY_UPDATED; + if (sec->enabled) + priv->capability |= CAP_PRIVACY_ON; + else + priv->capability &= ~CAP_PRIVACY_ON; + } + + if (sec->flags & SEC_ENCRYPT) + priv->ieee->sec.encrypt = sec->encrypt; + + if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) { + priv->ieee->sec.level = sec->level; + priv->ieee->sec.flags |= SEC_LEVEL; + priv->status |= STATUS_SECURITY_UPDATED; + } + + if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT)) + ipw_set_hwcrypto_keys(priv); + + /* To match current functionality of ipw2100 (which works well w/ + * various supplicants, we don't force a disassociate if the + * privacy capability changes ... */ +#if 0 + if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) && + (((priv->assoc_request.capability & + cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && !sec->enabled) || + (!(priv->assoc_request.capability & + cpu_to_le16(WLAN_CAPABILITY_PRIVACY)) && sec->enabled))) { + IPW_DEBUG_ASSOC("Disassociating due to capability " + "change.\n"); + ipw_disassociate(priv); + } +#endif +} + +static int init_supported_rates(struct ipw_priv *priv, + struct ipw_supported_rates *rates) +{ + /* TODO: Mask out rates based on priv->rates_mask */ + + memset(rates, 0, sizeof(*rates)); + /* configure supported rates */ + switch (priv->ieee->freq_band) { + case LIBIPW_52GHZ_BAND: + rates->ieee_mode = IPW_A_MODE; + rates->purpose = IPW_RATE_CAPABILITIES; + ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION, + LIBIPW_OFDM_DEFAULT_RATES_MASK); + break; + + default: /* Mixed or 2.4Ghz */ + rates->ieee_mode = IPW_G_MODE; + rates->purpose = IPW_RATE_CAPABILITIES; + ipw_add_cck_scan_rates(rates, LIBIPW_CCK_MODULATION, + LIBIPW_CCK_DEFAULT_RATES_MASK); + if (priv->ieee->modulation & LIBIPW_OFDM_MODULATION) { + ipw_add_ofdm_scan_rates(rates, LIBIPW_CCK_MODULATION, + LIBIPW_OFDM_DEFAULT_RATES_MASK); + } + break; + } + + return 0; +} + +static int ipw_config(struct ipw_priv *priv) +{ + /* This is only called from ipw_up, which resets/reloads the firmware + so, we don't need to first disable the card before we configure + it */ + if (ipw_set_tx_power(priv)) + goto error; + + /* initialize adapter address */ + if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr)) + goto error; + + /* set basic system config settings */ + init_sys_config(&priv->sys_config); + + /* Support Bluetooth if we have BT h/w on board, and user wants to. + * Does not support BT priority yet (don't abort or defer our Tx) */ + if (bt_coexist) { + unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY]; + + if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG) + priv->sys_config.bt_coexistence + |= CFG_BT_COEXISTENCE_SIGNAL_CHNL; + if (bt_caps & EEPROM_SKU_CAP_BT_OOB) + priv->sys_config.bt_coexistence + |= CFG_BT_COEXISTENCE_OOB; + } + +#ifdef CONFIG_IPW2200_PROMISCUOUS + if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) { + priv->sys_config.accept_all_data_frames = 1; + priv->sys_config.accept_non_directed_frames = 1; + priv->sys_config.accept_all_mgmt_bcpr = 1; + priv->sys_config.accept_all_mgmt_frames = 1; + } +#endif + + if (priv->ieee->iw_mode == IW_MODE_ADHOC) + priv->sys_config.answer_broadcast_ssid_probe = 1; + else + priv->sys_config.answer_broadcast_ssid_probe = 0; + + if (ipw_send_system_config(priv)) + goto error; + + init_supported_rates(priv, &priv->rates); + if (ipw_send_supported_rates(priv, &priv->rates)) + goto error; + + /* Set request-to-send threshold */ + if (priv->rts_threshold) { + if (ipw_send_rts_threshold(priv, priv->rts_threshold)) + goto error; + } +#ifdef CONFIG_IPW2200_QOS + IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n"); + ipw_qos_activate(priv, NULL); +#endif /* CONFIG_IPW2200_QOS */ + + if (ipw_set_random_seed(priv)) + goto error; + + /* final state transition to the RUN state */ + if (ipw_send_host_complete(priv)) + goto error; + + priv->status |= STATUS_INIT; + + ipw_led_init(priv); + ipw_led_radio_on(priv); + priv->notif_missed_beacons = 0; + + /* Set hardware WEP key if it is configured. */ + if ((priv->capability & CAP_PRIVACY_ON) && + (priv->ieee->sec.level == SEC_LEVEL_1) && + !(priv->ieee->host_encrypt || priv->ieee->host_decrypt)) + ipw_set_hwcrypto_keys(priv); + + return 0; + + error: + return -EIO; +} + +/* + * NOTE: + * + * These tables have been tested in conjunction with the + * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters. + * + * Altering this values, using it on other hardware, or in geographies + * not intended for resale of the above mentioned Intel adapters has + * not been tested. + * + * Remember to update the table in README.ipw2200 when changing this + * table. + * + */ +static const struct libipw_geo ipw_geos[] = { + { /* Restricted */ + "---", + .bg_channels = 11, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}}, + }, + + { /* Custom US/Canada */ + "ZZF", + .bg_channels = 11, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}}, + .a_channels = 8, + .a = {{5180, 36}, + {5200, 40}, + {5220, 44}, + {5240, 48}, + {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, + {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, + {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, + {5320, 64, LIBIPW_CH_PASSIVE_ONLY}}, + }, + + { /* Rest of World */ + "ZZD", + .bg_channels = 13, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, {2467, 12}, + {2472, 13}}, + }, + + { /* Custom USA & Europe & High */ + "ZZA", + .bg_channels = 11, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}}, + .a_channels = 13, + .a = {{5180, 36}, + {5200, 40}, + {5220, 44}, + {5240, 48}, + {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, + {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, + {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, + {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, + {5745, 149}, + {5765, 153}, + {5785, 157}, + {5805, 161}, + {5825, 165}}, + }, + + { /* Custom NA & Europe */ + "ZZB", + .bg_channels = 11, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}}, + .a_channels = 13, + .a = {{5180, 36}, + {5200, 40}, + {5220, 44}, + {5240, 48}, + {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, + {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, + {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, + {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, + {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, + {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, + {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, + {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, + {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, + }, + + { /* Custom Japan */ + "ZZC", + .bg_channels = 11, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}}, + .a_channels = 4, + .a = {{5170, 34}, {5190, 38}, + {5210, 42}, {5230, 46}}, + }, + + { /* Custom */ + "ZZM", + .bg_channels = 11, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}}, + }, + + { /* Europe */ + "ZZE", + .bg_channels = 13, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, {2467, 12}, + {2472, 13}}, + .a_channels = 19, + .a = {{5180, 36}, + {5200, 40}, + {5220, 44}, + {5240, 48}, + {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, + {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, + {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, + {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, + {5500, 100, LIBIPW_CH_PASSIVE_ONLY}, + {5520, 104, LIBIPW_CH_PASSIVE_ONLY}, + {5540, 108, LIBIPW_CH_PASSIVE_ONLY}, + {5560, 112, LIBIPW_CH_PASSIVE_ONLY}, + {5580, 116, LIBIPW_CH_PASSIVE_ONLY}, + {5600, 120, LIBIPW_CH_PASSIVE_ONLY}, + {5620, 124, LIBIPW_CH_PASSIVE_ONLY}, + {5640, 128, LIBIPW_CH_PASSIVE_ONLY}, + {5660, 132, LIBIPW_CH_PASSIVE_ONLY}, + {5680, 136, LIBIPW_CH_PASSIVE_ONLY}, + {5700, 140, LIBIPW_CH_PASSIVE_ONLY}}, + }, + + { /* Custom Japan */ + "ZZJ", + .bg_channels = 14, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, {2467, 12}, + {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY}}, + .a_channels = 4, + .a = {{5170, 34}, {5190, 38}, + {5210, 42}, {5230, 46}}, + }, + + { /* Rest of World */ + "ZZR", + .bg_channels = 14, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, {2467, 12}, + {2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY | + LIBIPW_CH_PASSIVE_ONLY}}, + }, + + { /* High Band */ + "ZZH", + .bg_channels = 13, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, + {2467, 12, LIBIPW_CH_PASSIVE_ONLY}, + {2472, 13, LIBIPW_CH_PASSIVE_ONLY}}, + .a_channels = 4, + .a = {{5745, 149}, {5765, 153}, + {5785, 157}, {5805, 161}}, + }, + + { /* Custom Europe */ + "ZZG", + .bg_channels = 13, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, + {2467, 12}, {2472, 13}}, + .a_channels = 4, + .a = {{5180, 36}, {5200, 40}, + {5220, 44}, {5240, 48}}, + }, + + { /* Europe */ + "ZZK", + .bg_channels = 13, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}, + {2467, 12, LIBIPW_CH_PASSIVE_ONLY}, + {2472, 13, LIBIPW_CH_PASSIVE_ONLY}}, + .a_channels = 24, + .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY}, + {5200, 40, LIBIPW_CH_PASSIVE_ONLY}, + {5220, 44, LIBIPW_CH_PASSIVE_ONLY}, + {5240, 48, LIBIPW_CH_PASSIVE_ONLY}, + {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, + {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, + {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, + {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, + {5500, 100, LIBIPW_CH_PASSIVE_ONLY}, + {5520, 104, LIBIPW_CH_PASSIVE_ONLY}, + {5540, 108, LIBIPW_CH_PASSIVE_ONLY}, + {5560, 112, LIBIPW_CH_PASSIVE_ONLY}, + {5580, 116, LIBIPW_CH_PASSIVE_ONLY}, + {5600, 120, LIBIPW_CH_PASSIVE_ONLY}, + {5620, 124, LIBIPW_CH_PASSIVE_ONLY}, + {5640, 128, LIBIPW_CH_PASSIVE_ONLY}, + {5660, 132, LIBIPW_CH_PASSIVE_ONLY}, + {5680, 136, LIBIPW_CH_PASSIVE_ONLY}, + {5700, 140, LIBIPW_CH_PASSIVE_ONLY}, + {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, + {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, + {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, + {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, + {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, + }, + + { /* Europe */ + "ZZL", + .bg_channels = 11, + .bg = {{2412, 1}, {2417, 2}, {2422, 3}, + {2427, 4}, {2432, 5}, {2437, 6}, + {2442, 7}, {2447, 8}, {2452, 9}, + {2457, 10}, {2462, 11}}, + .a_channels = 13, + .a = {{5180, 36, LIBIPW_CH_PASSIVE_ONLY}, + {5200, 40, LIBIPW_CH_PASSIVE_ONLY}, + {5220, 44, LIBIPW_CH_PASSIVE_ONLY}, + {5240, 48, LIBIPW_CH_PASSIVE_ONLY}, + {5260, 52, LIBIPW_CH_PASSIVE_ONLY}, + {5280, 56, LIBIPW_CH_PASSIVE_ONLY}, + {5300, 60, LIBIPW_CH_PASSIVE_ONLY}, + {5320, 64, LIBIPW_CH_PASSIVE_ONLY}, + {5745, 149, LIBIPW_CH_PASSIVE_ONLY}, + {5765, 153, LIBIPW_CH_PASSIVE_ONLY}, + {5785, 157, LIBIPW_CH_PASSIVE_ONLY}, + {5805, 161, LIBIPW_CH_PASSIVE_ONLY}, + {5825, 165, LIBIPW_CH_PASSIVE_ONLY}}, + } +}; + +static void ipw_set_geo(struct ipw_priv *priv) +{ + int j; + + for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) { + if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE], + ipw_geos[j].name, 3)) + break; + } + + if (j == ARRAY_SIZE(ipw_geos)) { + IPW_WARNING("SKU [%c%c%c] not recognized.\n", + priv->eeprom[EEPROM_COUNTRY_CODE + 0], + priv->eeprom[EEPROM_COUNTRY_CODE + 1], + priv->eeprom[EEPROM_COUNTRY_CODE + 2]); + j = 0; + } + + libipw_set_geo(priv->ieee, &ipw_geos[j]); +} + +#define MAX_HW_RESTARTS 5 +static int ipw_up(struct ipw_priv *priv) +{ + int rc, i; + + /* Age scan list entries found before suspend */ + if (priv->suspend_time) { + libipw_networks_age(priv->ieee, priv->suspend_time); + priv->suspend_time = 0; + } + + if (priv->status & STATUS_EXIT_PENDING) + return -EIO; + + if (cmdlog && !priv->cmdlog) { + priv->cmdlog = kcalloc(cmdlog, sizeof(*priv->cmdlog), + GFP_KERNEL); + if (priv->cmdlog == NULL) { + IPW_ERROR("Error allocating %d command log entries.\n", + cmdlog); + return -ENOMEM; + } else { + priv->cmdlog_len = cmdlog; + } + } + + for (i = 0; i < MAX_HW_RESTARTS; i++) { + /* Load the microcode, firmware, and eeprom. + * Also start the clocks. */ + rc = ipw_load(priv); + if (rc) { + IPW_ERROR("Unable to load firmware: %d\n", rc); + return rc; + } + + ipw_init_ordinals(priv); + if (!(priv->config & CFG_CUSTOM_MAC)) + eeprom_parse_mac(priv, priv->mac_addr); + eth_hw_addr_set(priv->net_dev, priv->mac_addr); + + ipw_set_geo(priv); + + if (priv->status & STATUS_RF_KILL_SW) { + IPW_WARNING("Radio disabled by module parameter.\n"); + return 0; + } else if (rf_kill_active(priv)) { + IPW_WARNING("Radio Frequency Kill Switch is On:\n" + "Kill switch must be turned off for " + "wireless networking to work.\n"); + schedule_delayed_work(&priv->rf_kill, 2 * HZ); + return 0; + } + + rc = ipw_config(priv); + if (!rc) { + IPW_DEBUG_INFO("Configured device on count %i\n", i); + + /* If configure to try and auto-associate, kick + * off a scan. */ + schedule_delayed_work(&priv->request_scan, 0); + + return 0; + } + + IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc); + IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n", + i, MAX_HW_RESTARTS); + + /* We had an error bringing up the hardware, so take it + * all the way back down so we can try again */ + ipw_down(priv); + } + + /* tried to restart and config the device for as long as our + * patience could withstand */ + IPW_ERROR("Unable to initialize device after %d attempts.\n", i); + + return -EIO; +} + +static void ipw_bg_up(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, up); + mutex_lock(&priv->mutex); + ipw_up(priv); + mutex_unlock(&priv->mutex); +} + +static void ipw_deinit(struct ipw_priv *priv) +{ + int i; + + if (priv->status & STATUS_SCANNING) { + IPW_DEBUG_INFO("Aborting scan during shutdown.\n"); + ipw_abort_scan(priv); + } + + if (priv->status & STATUS_ASSOCIATED) { + IPW_DEBUG_INFO("Disassociating during shutdown.\n"); + ipw_disassociate(priv); + } + + ipw_led_shutdown(priv); + + /* Wait up to 1s for status to change to not scanning and not + * associated (disassociation can take a while for a ful 802.11 + * exchange */ + for (i = 1000; i && (priv->status & + (STATUS_DISASSOCIATING | + STATUS_ASSOCIATED | STATUS_SCANNING)); i--) + udelay(10); + + if (priv->status & (STATUS_DISASSOCIATING | + STATUS_ASSOCIATED | STATUS_SCANNING)) + IPW_DEBUG_INFO("Still associated or scanning...\n"); + else + IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i); + + /* Attempt to disable the card */ + ipw_send_card_disable(priv, 0); + + priv->status &= ~STATUS_INIT; +} + +static void ipw_down(struct ipw_priv *priv) +{ + int exit_pending = priv->status & STATUS_EXIT_PENDING; + + priv->status |= STATUS_EXIT_PENDING; + + if (ipw_is_init(priv)) + ipw_deinit(priv); + + /* Wipe out the EXIT_PENDING status bit if we are not actually + * exiting the module */ + if (!exit_pending) + priv->status &= ~STATUS_EXIT_PENDING; + + /* tell the device to stop sending interrupts */ + ipw_disable_interrupts(priv); + + /* Clear all bits but the RF Kill */ + priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING; + netif_carrier_off(priv->net_dev); + + ipw_stop_nic(priv); + + ipw_led_radio_off(priv); +} + +static void ipw_bg_down(struct work_struct *work) +{ + struct ipw_priv *priv = + container_of(work, struct ipw_priv, down); + mutex_lock(&priv->mutex); + ipw_down(priv); + mutex_unlock(&priv->mutex); +} + +static int ipw_wdev_init(struct net_device *dev) +{ + int i, rc = 0; + struct ipw_priv *priv = libipw_priv(dev); + const struct libipw_geo *geo = libipw_get_geo(priv->ieee); + struct wireless_dev *wdev = &priv->ieee->wdev; + + memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN); + + /* fill-out priv->ieee->bg_band */ + if (geo->bg_channels) { + struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band; + + bg_band->band = NL80211_BAND_2GHZ; + bg_band->n_channels = geo->bg_channels; + bg_band->channels = kcalloc(geo->bg_channels, + sizeof(struct ieee80211_channel), + GFP_KERNEL); + if (!bg_band->channels) { + rc = -ENOMEM; + goto out; + } + /* translate geo->bg to bg_band.channels */ + for (i = 0; i < geo->bg_channels; i++) { + bg_band->channels[i].band = NL80211_BAND_2GHZ; + bg_band->channels[i].center_freq = geo->bg[i].freq; + bg_band->channels[i].hw_value = geo->bg[i].channel; + bg_band->channels[i].max_power = geo->bg[i].max_power; + if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY) + bg_band->channels[i].flags |= + IEEE80211_CHAN_NO_IR; + if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS) + bg_band->channels[i].flags |= + IEEE80211_CHAN_NO_IR; + if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT) + bg_band->channels[i].flags |= + IEEE80211_CHAN_RADAR; + /* No equivalent for LIBIPW_CH_80211H_RULES, + LIBIPW_CH_UNIFORM_SPREADING, or + LIBIPW_CH_B_ONLY... */ + } + /* point at bitrate info */ + bg_band->bitrates = ipw2200_bg_rates; + bg_band->n_bitrates = ipw2200_num_bg_rates; + + wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band; + } + + /* fill-out priv->ieee->a_band */ + if (geo->a_channels) { + struct ieee80211_supported_band *a_band = &priv->ieee->a_band; + + a_band->band = NL80211_BAND_5GHZ; + a_band->n_channels = geo->a_channels; + a_band->channels = kcalloc(geo->a_channels, + sizeof(struct ieee80211_channel), + GFP_KERNEL); + if (!a_band->channels) { + rc = -ENOMEM; + goto out; + } + /* translate geo->a to a_band.channels */ + for (i = 0; i < geo->a_channels; i++) { + a_band->channels[i].band = NL80211_BAND_5GHZ; + a_band->channels[i].center_freq = geo->a[i].freq; + a_band->channels[i].hw_value = geo->a[i].channel; + a_band->channels[i].max_power = geo->a[i].max_power; + if (geo->a[i].flags & LIBIPW_CH_PASSIVE_ONLY) + a_band->channels[i].flags |= + IEEE80211_CHAN_NO_IR; + if (geo->a[i].flags & LIBIPW_CH_NO_IBSS) + a_band->channels[i].flags |= + IEEE80211_CHAN_NO_IR; + if (geo->a[i].flags & LIBIPW_CH_RADAR_DETECT) + a_band->channels[i].flags |= + IEEE80211_CHAN_RADAR; + /* No equivalent for LIBIPW_CH_80211H_RULES, + LIBIPW_CH_UNIFORM_SPREADING, or + LIBIPW_CH_B_ONLY... */ + } + /* point at bitrate info */ + a_band->bitrates = ipw2200_a_rates; + a_band->n_bitrates = ipw2200_num_a_rates; + + wdev->wiphy->bands[NL80211_BAND_5GHZ] = a_band; + } + + wdev->wiphy->cipher_suites = ipw_cipher_suites; + wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites); + + set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev); + + /* With that information in place, we can now register the wiphy... */ + rc = wiphy_register(wdev->wiphy); + if (rc) + goto out; + + return 0; +out: + kfree(priv->ieee->a_band.channels); + kfree(priv->ieee->bg_band.channels); + return rc; +} + +/* PCI driver stuff */ +static const struct pci_device_id card_ids[] = { + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0}, + {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0}, + {PCI_VDEVICE(INTEL, 0x104f), 0}, + {PCI_VDEVICE(INTEL, 0x4220), 0}, /* BG */ + {PCI_VDEVICE(INTEL, 0x4221), 0}, /* BG */ + {PCI_VDEVICE(INTEL, 0x4223), 0}, /* ABG */ + {PCI_VDEVICE(INTEL, 0x4224), 0}, /* ABG */ + + /* required last entry */ + {0,} +}; + +MODULE_DEVICE_TABLE(pci, card_ids); + +static struct attribute *ipw_sysfs_entries[] = { + &dev_attr_rf_kill.attr, + &dev_attr_direct_dword.attr, + &dev_attr_indirect_byte.attr, + &dev_attr_indirect_dword.attr, + &dev_attr_mem_gpio_reg.attr, + &dev_attr_command_event_reg.attr, + &dev_attr_nic_type.attr, + &dev_attr_status.attr, + &dev_attr_cfg.attr, + &dev_attr_error.attr, + &dev_attr_event_log.attr, + &dev_attr_cmd_log.attr, + &dev_attr_eeprom_delay.attr, + &dev_attr_ucode_version.attr, + &dev_attr_rtc.attr, + &dev_attr_scan_age.attr, + &dev_attr_led.attr, + &dev_attr_speed_scan.attr, + &dev_attr_net_stats.attr, + &dev_attr_channels.attr, +#ifdef CONFIG_IPW2200_PROMISCUOUS + &dev_attr_rtap_iface.attr, + &dev_attr_rtap_filter.attr, +#endif + NULL +}; + +static const struct attribute_group ipw_attribute_group = { + .name = NULL, /* put in device directory */ + .attrs = ipw_sysfs_entries, +}; + +#ifdef CONFIG_IPW2200_PROMISCUOUS +static int ipw_prom_open(struct net_device *dev) +{ + struct ipw_prom_priv *prom_priv = libipw_priv(dev); + struct ipw_priv *priv = prom_priv->priv; + + IPW_DEBUG_INFO("prom dev->open\n"); + netif_carrier_off(dev); + + if (priv->ieee->iw_mode != IW_MODE_MONITOR) { + priv->sys_config.accept_all_data_frames = 1; + priv->sys_config.accept_non_directed_frames = 1; + priv->sys_config.accept_all_mgmt_bcpr = 1; + priv->sys_config.accept_all_mgmt_frames = 1; + + ipw_send_system_config(priv); + } + + return 0; +} + +static int ipw_prom_stop(struct net_device *dev) +{ + struct ipw_prom_priv *prom_priv = libipw_priv(dev); + struct ipw_priv *priv = prom_priv->priv; + + IPW_DEBUG_INFO("prom dev->stop\n"); + + if (priv->ieee->iw_mode != IW_MODE_MONITOR) { + priv->sys_config.accept_all_data_frames = 0; + priv->sys_config.accept_non_directed_frames = 0; + priv->sys_config.accept_all_mgmt_bcpr = 0; + priv->sys_config.accept_all_mgmt_frames = 0; + + ipw_send_system_config(priv); + } + + return 0; +} + +static netdev_tx_t ipw_prom_hard_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + IPW_DEBUG_INFO("prom dev->xmit\n"); + dev_kfree_skb(skb); + return NETDEV_TX_OK; +} + +static const struct net_device_ops ipw_prom_netdev_ops = { + .ndo_open = ipw_prom_open, + .ndo_stop = ipw_prom_stop, + .ndo_start_xmit = ipw_prom_hard_start_xmit, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +static int ipw_prom_alloc(struct ipw_priv *priv) +{ + int rc = 0; + + if (priv->prom_net_dev) + return -EPERM; + + priv->prom_net_dev = alloc_libipw(sizeof(struct ipw_prom_priv), 1); + if (priv->prom_net_dev == NULL) + return -ENOMEM; + + priv->prom_priv = libipw_priv(priv->prom_net_dev); + priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev); + priv->prom_priv->priv = priv; + + strcpy(priv->prom_net_dev->name, "rtap%d"); + eth_hw_addr_set(priv->prom_net_dev, priv->mac_addr); + + priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP; + priv->prom_net_dev->netdev_ops = &ipw_prom_netdev_ops; + + priv->prom_net_dev->min_mtu = 68; + priv->prom_net_dev->max_mtu = LIBIPW_DATA_LEN; + + priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR; + SET_NETDEV_DEV(priv->prom_net_dev, &priv->pci_dev->dev); + + rc = register_netdev(priv->prom_net_dev); + if (rc) { + free_libipw(priv->prom_net_dev, 1); + priv->prom_net_dev = NULL; + return rc; + } + + return 0; +} + +static void ipw_prom_free(struct ipw_priv *priv) +{ + if (!priv->prom_net_dev) + return; + + unregister_netdev(priv->prom_net_dev); + free_libipw(priv->prom_net_dev, 1); + + priv->prom_net_dev = NULL; +} + +#endif + +static const struct net_device_ops ipw_netdev_ops = { + .ndo_open = ipw_net_open, + .ndo_stop = ipw_net_stop, + .ndo_set_rx_mode = ipw_net_set_multicast_list, + .ndo_set_mac_address = ipw_net_set_mac_address, + .ndo_start_xmit = libipw_xmit, + .ndo_validate_addr = eth_validate_addr, +}; + +static int ipw_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int err = 0; + struct net_device *net_dev; + void __iomem *base; + u32 length, val; + struct ipw_priv *priv; + int i; + + net_dev = alloc_libipw(sizeof(struct ipw_priv), 0); + if (net_dev == NULL) { + err = -ENOMEM; + goto out; + } + + priv = libipw_priv(net_dev); + priv->ieee = netdev_priv(net_dev); + + priv->net_dev = net_dev; + priv->pci_dev = pdev; + ipw_debug_level = debug; + spin_lock_init(&priv->irq_lock); + spin_lock_init(&priv->lock); + for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) + INIT_LIST_HEAD(&priv->ibss_mac_hash[i]); + + mutex_init(&priv->mutex); + if (pci_enable_device(pdev)) { + err = -ENODEV; + goto out_free_libipw; + } + + pci_set_master(pdev); + + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (!err) + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) { + printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n"); + goto out_pci_disable_device; + } + + pci_set_drvdata(pdev, priv); + + err = pci_request_regions(pdev, DRV_NAME); + if (err) + goto out_pci_disable_device; + + /* We disable the RETRY_TIMEOUT register (0x41) to keep + * PCI Tx retries from interfering with C3 CPU state */ + pci_read_config_dword(pdev, 0x40, &val); + if ((val & 0x0000ff00) != 0) + pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); + + length = pci_resource_len(pdev, 0); + priv->hw_len = length; + + base = pci_ioremap_bar(pdev, 0); + if (!base) { + err = -ENODEV; + goto out_pci_release_regions; + } + + priv->hw_base = base; + IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length); + IPW_DEBUG_INFO("pci_resource_base = %p\n", base); + + ipw_setup_deferred_work(priv); + + ipw_sw_reset(priv, 1); + + err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv); + if (err) { + IPW_ERROR("Error allocating IRQ %d\n", pdev->irq); + goto out_iounmap; + } + + SET_NETDEV_DEV(net_dev, &pdev->dev); + + mutex_lock(&priv->mutex); + + priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit; + priv->ieee->set_security = shim__set_security; + priv->ieee->is_queue_full = ipw_net_is_queue_full; + +#ifdef CONFIG_IPW2200_QOS + priv->ieee->is_qos_active = ipw_is_qos_active; + priv->ieee->handle_probe_response = ipw_handle_beacon; + priv->ieee->handle_beacon = ipw_handle_probe_response; + priv->ieee->handle_assoc_response = ipw_handle_assoc_response; +#endif /* CONFIG_IPW2200_QOS */ + + priv->ieee->perfect_rssi = -20; + priv->ieee->worst_rssi = -85; + + net_dev->netdev_ops = &ipw_netdev_ops; + priv->wireless_data.spy_data = &priv->ieee->spy_data; + net_dev->wireless_data = &priv->wireless_data; + net_dev->wireless_handlers = &ipw_wx_handler_def; + net_dev->ethtool_ops = &ipw_ethtool_ops; + + net_dev->min_mtu = 68; + net_dev->max_mtu = LIBIPW_DATA_LEN; + + err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group); + if (err) { + IPW_ERROR("failed to create sysfs device attributes\n"); + mutex_unlock(&priv->mutex); + goto out_release_irq; + } + + if (ipw_up(priv)) { + mutex_unlock(&priv->mutex); + err = -EIO; + goto out_remove_sysfs; + } + + mutex_unlock(&priv->mutex); + + err = ipw_wdev_init(net_dev); + if (err) { + IPW_ERROR("failed to register wireless device\n"); + goto out_remove_sysfs; + } + + err = register_netdev(net_dev); + if (err) { + IPW_ERROR("failed to register network device\n"); + goto out_unregister_wiphy; + } + +#ifdef CONFIG_IPW2200_PROMISCUOUS + if (rtap_iface) { + err = ipw_prom_alloc(priv); + if (err) { + IPW_ERROR("Failed to register promiscuous network " + "device (error %d).\n", err); + unregister_netdev(priv->net_dev); + goto out_unregister_wiphy; + } + } +#endif + + printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg " + "channels, %d 802.11a channels)\n", + priv->ieee->geo.name, priv->ieee->geo.bg_channels, + priv->ieee->geo.a_channels); + + return 0; + + out_unregister_wiphy: + wiphy_unregister(priv->ieee->wdev.wiphy); + kfree(priv->ieee->a_band.channels); + kfree(priv->ieee->bg_band.channels); + out_remove_sysfs: + sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); + out_release_irq: + free_irq(pdev->irq, priv); + out_iounmap: + iounmap(priv->hw_base); + out_pci_release_regions: + pci_release_regions(pdev); + out_pci_disable_device: + pci_disable_device(pdev); + out_free_libipw: + free_libipw(priv->net_dev, 0); + out: + return err; +} + +static void ipw_pci_remove(struct pci_dev *pdev) +{ + struct ipw_priv *priv = pci_get_drvdata(pdev); + struct list_head *p, *q; + int i; + + if (!priv) + return; + + mutex_lock(&priv->mutex); + + priv->status |= STATUS_EXIT_PENDING; + ipw_down(priv); + sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group); + + mutex_unlock(&priv->mutex); + + unregister_netdev(priv->net_dev); + + if (priv->rxq) { + ipw_rx_queue_free(priv, priv->rxq); + priv->rxq = NULL; + } + ipw_tx_queue_free(priv); + + if (priv->cmdlog) { + kfree(priv->cmdlog); + priv->cmdlog = NULL; + } + + /* make sure all works are inactive */ + cancel_delayed_work_sync(&priv->adhoc_check); + cancel_work_sync(&priv->associate); + cancel_work_sync(&priv->disassociate); + cancel_work_sync(&priv->system_config); + cancel_work_sync(&priv->rx_replenish); + cancel_work_sync(&priv->adapter_restart); + cancel_delayed_work_sync(&priv->rf_kill); + cancel_work_sync(&priv->up); + cancel_work_sync(&priv->down); + cancel_delayed_work_sync(&priv->request_scan); + cancel_delayed_work_sync(&priv->request_direct_scan); + cancel_delayed_work_sync(&priv->request_passive_scan); + cancel_delayed_work_sync(&priv->scan_event); + cancel_delayed_work_sync(&priv->gather_stats); + cancel_work_sync(&priv->abort_scan); + cancel_work_sync(&priv->roam); + cancel_delayed_work_sync(&priv->scan_check); + cancel_work_sync(&priv->link_up); + cancel_work_sync(&priv->link_down); + cancel_delayed_work_sync(&priv->led_link_on); + cancel_delayed_work_sync(&priv->led_link_off); + cancel_delayed_work_sync(&priv->led_act_off); + cancel_work_sync(&priv->merge_networks); + + /* Free MAC hash list for ADHOC */ + for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) { + list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) { + list_del(p); + kfree(list_entry(p, struct ipw_ibss_seq, list)); + } + } + + kfree(priv->error); + priv->error = NULL; + +#ifdef CONFIG_IPW2200_PROMISCUOUS + ipw_prom_free(priv); +#endif + + free_irq(pdev->irq, priv); + iounmap(priv->hw_base); + pci_release_regions(pdev); + pci_disable_device(pdev); + /* wiphy_unregister needs to be here, before free_libipw */ + wiphy_unregister(priv->ieee->wdev.wiphy); + kfree(priv->ieee->a_band.channels); + kfree(priv->ieee->bg_band.channels); + free_libipw(priv->net_dev, 0); + free_firmware(); +} + +static int __maybe_unused ipw_pci_suspend(struct device *dev_d) +{ + struct ipw_priv *priv = dev_get_drvdata(dev_d); + struct net_device *dev = priv->net_dev; + + printk(KERN_INFO "%s: Going into suspend...\n", dev->name); + + /* Take down the device; powers it off, etc. */ + ipw_down(priv); + + /* Remove the PRESENT state of the device */ + netif_device_detach(dev); + + priv->suspend_at = ktime_get_boottime_seconds(); + + return 0; +} + +static int __maybe_unused ipw_pci_resume(struct device *dev_d) +{ + struct pci_dev *pdev = to_pci_dev(dev_d); + struct ipw_priv *priv = pci_get_drvdata(pdev); + struct net_device *dev = priv->net_dev; + u32 val; + + printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name); + + /* + * Suspend/Resume resets the PCI configuration space, so we have to + * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries + * from interfering with C3 CPU state. pci_restore_state won't help + * here since it only restores the first 64 bytes pci config header. + */ + pci_read_config_dword(pdev, 0x40, &val); + if ((val & 0x0000ff00) != 0) + pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); + + /* Set the device back into the PRESENT state; this will also wake + * the queue of needed */ + netif_device_attach(dev); + + priv->suspend_time = ktime_get_boottime_seconds() - priv->suspend_at; + + /* Bring the device back up */ + schedule_work(&priv->up); + + return 0; +} + +static void ipw_pci_shutdown(struct pci_dev *pdev) +{ + struct ipw_priv *priv = pci_get_drvdata(pdev); + + /* Take down the device; powers it off, etc. */ + ipw_down(priv); + + pci_disable_device(pdev); +} + +static SIMPLE_DEV_PM_OPS(ipw_pci_pm_ops, ipw_pci_suspend, ipw_pci_resume); + +/* driver initialization stuff */ +static struct pci_driver ipw_driver = { + .name = DRV_NAME, + .id_table = card_ids, + .probe = ipw_pci_probe, + .remove = ipw_pci_remove, + .driver.pm = &ipw_pci_pm_ops, + .shutdown = ipw_pci_shutdown, +}; + +static int __init ipw_init(void) +{ + int ret; + + printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); + printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); + + ret = pci_register_driver(&ipw_driver); + if (ret) { + IPW_ERROR("Unable to initialize PCI module\n"); + return ret; + } + + ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level); + if (ret) { + IPW_ERROR("Unable to create driver sysfs file\n"); + pci_unregister_driver(&ipw_driver); + return ret; + } + + return ret; +} + +static void __exit ipw_exit(void) +{ + driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level); + pci_unregister_driver(&ipw_driver); +} + +module_param(disable, int, 0444); +MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); + +module_param(associate, int, 0444); +MODULE_PARM_DESC(associate, "auto associate when scanning (default off)"); + +module_param(auto_create, int, 0444); +MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)"); + +module_param_named(led, led_support, int, 0444); +MODULE_PARM_DESC(led, "enable led control on some systems (default 1 on)"); + +module_param(debug, int, 0444); +MODULE_PARM_DESC(debug, "debug output mask"); + +module_param_named(channel, default_channel, int, 0444); +MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])"); + +#ifdef CONFIG_IPW2200_PROMISCUOUS +module_param(rtap_iface, int, 0444); +MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)"); +#endif + +#ifdef CONFIG_IPW2200_QOS +module_param(qos_enable, int, 0444); +MODULE_PARM_DESC(qos_enable, "enable all QoS functionalities"); + +module_param(qos_burst_enable, int, 0444); +MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode"); + +module_param(qos_no_ack_mask, int, 0444); +MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack"); + +module_param(burst_duration_CCK, int, 0444); +MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value"); + +module_param(burst_duration_OFDM, int, 0444); +MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value"); +#endif /* CONFIG_IPW2200_QOS */ + +#ifdef CONFIG_IPW2200_MONITOR +module_param_named(mode, network_mode, int, 0444); +MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)"); +#else +module_param_named(mode, network_mode, int, 0444); +MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)"); +#endif + +module_param(bt_coexist, int, 0444); +MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)"); + +module_param(hwcrypto, int, 0444); +MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)"); + +module_param(cmdlog, int, 0444); +MODULE_PARM_DESC(cmdlog, + "allocate a ring buffer for logging firmware commands"); + +module_param(roaming, int, 0444); +MODULE_PARM_DESC(roaming, "enable roaming support (default on)"); + +module_param(antenna, int, 0444); +MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)"); + +module_exit(ipw_exit); +module_init(ipw_init); diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.h b/drivers/net/wireless/intel/ipw2x00/ipw2200.h new file mode 100644 index 000000000..09ddd2160 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.h @@ -0,0 +1,1985 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/****************************************************************************** + + Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved. + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ + +#ifndef __ipw2200_h__ +#define __ipw2200_h__ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/mutex.h> + +#include <linux/pci.h> +#include <linux/netdevice.h> +#include <linux/ethtool.h> +#include <linux/skbuff.h> +#include <linux/etherdevice.h> +#include <linux/delay.h> +#include <linux/random.h> +#include <linux/dma-mapping.h> + +#include <linux/firmware.h> +#include <linux/wireless.h> +#include <linux/jiffies.h> +#include <asm/io.h> + +#include <net/lib80211.h> +#include <net/ieee80211_radiotap.h> + +#define DRV_NAME "ipw2200" + +#include <linux/workqueue.h> + +#include "libipw.h" + +/* Authentication and Association States */ +enum connection_manager_assoc_states { + CMAS_INIT = 0, + CMAS_TX_AUTH_SEQ_1, + CMAS_RX_AUTH_SEQ_2, + CMAS_AUTH_SEQ_1_PASS, + CMAS_AUTH_SEQ_1_FAIL, + CMAS_TX_AUTH_SEQ_3, + CMAS_RX_AUTH_SEQ_4, + CMAS_AUTH_SEQ_2_PASS, + CMAS_AUTH_SEQ_2_FAIL, + CMAS_AUTHENTICATED, + CMAS_TX_ASSOC, + CMAS_RX_ASSOC_RESP, + CMAS_ASSOCIATED, + CMAS_LAST +}; + +#define IPW_WAIT (1<<0) +#define IPW_QUIET (1<<1) +#define IPW_ROAMING (1<<2) + +#define IPW_POWER_MODE_CAM 0x00 //(always on) +#define IPW_POWER_INDEX_1 0x01 +#define IPW_POWER_INDEX_2 0x02 +#define IPW_POWER_INDEX_3 0x03 +#define IPW_POWER_INDEX_4 0x04 +#define IPW_POWER_INDEX_5 0x05 +#define IPW_POWER_AC 0x06 +#define IPW_POWER_BATTERY 0x07 +#define IPW_POWER_LIMIT 0x07 +#define IPW_POWER_MASK 0x0F +#define IPW_POWER_ENABLED 0x10 +#define IPW_POWER_LEVEL(x) ((x) & IPW_POWER_MASK) + +#define IPW_CMD_HOST_COMPLETE 2 +#define IPW_CMD_POWER_DOWN 4 +#define IPW_CMD_SYSTEM_CONFIG 6 +#define IPW_CMD_MULTICAST_ADDRESS 7 +#define IPW_CMD_SSID 8 +#define IPW_CMD_ADAPTER_ADDRESS 11 +#define IPW_CMD_PORT_TYPE 12 +#define IPW_CMD_RTS_THRESHOLD 15 +#define IPW_CMD_FRAG_THRESHOLD 16 +#define IPW_CMD_POWER_MODE 17 +#define IPW_CMD_WEP_KEY 18 +#define IPW_CMD_TGI_TX_KEY 19 +#define IPW_CMD_SCAN_REQUEST 20 +#define IPW_CMD_ASSOCIATE 21 +#define IPW_CMD_SUPPORTED_RATES 22 +#define IPW_CMD_SCAN_ABORT 23 +#define IPW_CMD_TX_FLUSH 24 +#define IPW_CMD_QOS_PARAMETERS 25 +#define IPW_CMD_SCAN_REQUEST_EXT 26 +#define IPW_CMD_DINO_CONFIG 30 +#define IPW_CMD_RSN_CAPABILITIES 31 +#define IPW_CMD_RX_KEY 32 +#define IPW_CMD_CARD_DISABLE 33 +#define IPW_CMD_SEED_NUMBER 34 +#define IPW_CMD_TX_POWER 35 +#define IPW_CMD_COUNTRY_INFO 36 +#define IPW_CMD_AIRONET_INFO 37 +#define IPW_CMD_AP_TX_POWER 38 +#define IPW_CMD_CCKM_INFO 39 +#define IPW_CMD_CCX_VER_INFO 40 +#define IPW_CMD_SET_CALIBRATION 41 +#define IPW_CMD_SENSITIVITY_CALIB 42 +#define IPW_CMD_RETRY_LIMIT 51 +#define IPW_CMD_IPW_PRE_POWER_DOWN 58 +#define IPW_CMD_VAP_BEACON_TEMPLATE 60 +#define IPW_CMD_VAP_DTIM_PERIOD 61 +#define IPW_CMD_EXT_SUPPORTED_RATES 62 +#define IPW_CMD_VAP_LOCAL_TX_PWR_CONSTRAINT 63 +#define IPW_CMD_VAP_QUIET_INTERVALS 64 +#define IPW_CMD_VAP_CHANNEL_SWITCH 65 +#define IPW_CMD_VAP_MANDATORY_CHANNELS 66 +#define IPW_CMD_VAP_CELL_PWR_LIMIT 67 +#define IPW_CMD_VAP_CF_PARAM_SET 68 +#define IPW_CMD_VAP_SET_BEACONING_STATE 69 +#define IPW_CMD_MEASUREMENT 80 +#define IPW_CMD_POWER_CAPABILITY 81 +#define IPW_CMD_SUPPORTED_CHANNELS 82 +#define IPW_CMD_TPC_REPORT 83 +#define IPW_CMD_WME_INFO 84 +#define IPW_CMD_PRODUCTION_COMMAND 85 +#define IPW_CMD_LINKSYS_EOU_INFO 90 + +#define RFD_SIZE 4 +#define NUM_TFD_CHUNKS 6 + +#define TX_QUEUE_SIZE 32 +#define RX_QUEUE_SIZE 32 + +#define DINO_CMD_WEP_KEY 0x08 +#define DINO_CMD_TX 0x0B +#define DCT_ANTENNA_A 0x01 +#define DCT_ANTENNA_B 0x02 + +#define IPW_A_MODE 0 +#define IPW_B_MODE 1 +#define IPW_G_MODE 2 + +/* + * TX Queue Flag Definitions + */ + +/* tx wep key definition */ +#define DCT_WEP_KEY_NOT_IMMIDIATE 0x00 +#define DCT_WEP_KEY_64Bit 0x40 +#define DCT_WEP_KEY_128Bit 0x80 +#define DCT_WEP_KEY_128bitIV 0xC0 +#define DCT_WEP_KEY_SIZE_MASK 0xC0 + +#define DCT_WEP_KEY_INDEX_MASK 0x0F +#define DCT_WEP_INDEX_USE_IMMEDIATE 0x20 + +/* abort attempt if mgmt frame is rx'd */ +#define DCT_FLAG_ABORT_MGMT 0x01 + +/* require CTS */ +#define DCT_FLAG_CTS_REQUIRED 0x02 + +/* use short preamble */ +#define DCT_FLAG_LONG_PREAMBLE 0x00 +#define DCT_FLAG_SHORT_PREAMBLE 0x04 + +/* RTS/CTS first */ +#define DCT_FLAG_RTS_REQD 0x08 + +/* dont calculate duration field */ +#define DCT_FLAG_DUR_SET 0x10 + +/* even if MAC WEP set (allows pre-encrypt) */ +#define DCT_FLAG_NO_WEP 0x20 + +/* overwrite TSF field */ +#define DCT_FLAG_TSF_REQD 0x40 + +/* ACK rx is expected to follow */ +#define DCT_FLAG_ACK_REQD 0x80 + +/* TX flags extension */ +#define DCT_FLAG_EXT_MODE_CCK 0x01 +#define DCT_FLAG_EXT_MODE_OFDM 0x00 + +#define DCT_FLAG_EXT_SECURITY_WEP 0x00 +#define DCT_FLAG_EXT_SECURITY_NO DCT_FLAG_EXT_SECURITY_WEP +#define DCT_FLAG_EXT_SECURITY_CKIP 0x04 +#define DCT_FLAG_EXT_SECURITY_CCM 0x08 +#define DCT_FLAG_EXT_SECURITY_TKIP 0x0C +#define DCT_FLAG_EXT_SECURITY_MASK 0x0C + +#define DCT_FLAG_EXT_QOS_ENABLED 0x10 + +#define DCT_FLAG_EXT_HC_NO_SIFS_PIFS 0x00 +#define DCT_FLAG_EXT_HC_SIFS 0x20 +#define DCT_FLAG_EXT_HC_PIFS 0x40 + +#define TX_RX_TYPE_MASK 0xFF +#define TX_FRAME_TYPE 0x00 +#define TX_HOST_COMMAND_TYPE 0x01 +#define RX_FRAME_TYPE 0x09 +#define RX_HOST_NOTIFICATION_TYPE 0x03 +#define RX_HOST_CMD_RESPONSE_TYPE 0x04 +#define RX_TX_FRAME_RESPONSE_TYPE 0x05 +#define TFD_NEED_IRQ_MASK 0x04 + +#define HOST_CMD_DINO_CONFIG 30 + +#define HOST_NOTIFICATION_STATUS_ASSOCIATED 10 +#define HOST_NOTIFICATION_STATUS_AUTHENTICATE 11 +#define HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT 12 +#define HOST_NOTIFICATION_STATUS_SCAN_COMPLETED 13 +#define HOST_NOTIFICATION_STATUS_FRAG_LENGTH 14 +#define HOST_NOTIFICATION_STATUS_LINK_DETERIORATION 15 +#define HOST_NOTIFICATION_DINO_CONFIG_RESPONSE 16 +#define HOST_NOTIFICATION_STATUS_BEACON_STATE 17 +#define HOST_NOTIFICATION_STATUS_TGI_TX_KEY 18 +#define HOST_NOTIFICATION_TX_STATUS 19 +#define HOST_NOTIFICATION_CALIB_KEEP_RESULTS 20 +#define HOST_NOTIFICATION_MEASUREMENT_STARTED 21 +#define HOST_NOTIFICATION_MEASUREMENT_ENDED 22 +#define HOST_NOTIFICATION_CHANNEL_SWITCHED 23 +#define HOST_NOTIFICATION_RX_DURING_QUIET_PERIOD 24 +#define HOST_NOTIFICATION_NOISE_STATS 25 +#define HOST_NOTIFICATION_S36_MEASUREMENT_ACCEPTED 30 +#define HOST_NOTIFICATION_S36_MEASUREMENT_REFUSED 31 + +#define HOST_NOTIFICATION_STATUS_BEACON_MISSING 1 +#define IPW_MB_SCAN_CANCEL_THRESHOLD 3 +#define IPW_MB_ROAMING_THRESHOLD_MIN 1 +#define IPW_MB_ROAMING_THRESHOLD_DEFAULT 8 +#define IPW_MB_ROAMING_THRESHOLD_MAX 30 +#define IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT 3*IPW_MB_ROAMING_THRESHOLD_DEFAULT +#define IPW_REAL_RATE_RX_PACKET_THRESHOLD 300 + +#define MACADRR_BYTE_LEN 6 + +#define DCR_TYPE_AP 0x01 +#define DCR_TYPE_WLAP 0x02 +#define DCR_TYPE_MU_ESS 0x03 +#define DCR_TYPE_MU_IBSS 0x04 +#define DCR_TYPE_MU_PIBSS 0x05 +#define DCR_TYPE_SNIFFER 0x06 +#define DCR_TYPE_MU_BSS DCR_TYPE_MU_ESS + +/* QoS definitions */ + +#define CW_MIN_OFDM 15 +#define CW_MAX_OFDM 1023 +#define CW_MIN_CCK 31 +#define CW_MAX_CCK 1023 + +#define QOS_TX0_CW_MIN_OFDM cpu_to_le16(CW_MIN_OFDM) +#define QOS_TX1_CW_MIN_OFDM cpu_to_le16(CW_MIN_OFDM) +#define QOS_TX2_CW_MIN_OFDM cpu_to_le16((CW_MIN_OFDM + 1)/2 - 1) +#define QOS_TX3_CW_MIN_OFDM cpu_to_le16((CW_MIN_OFDM + 1)/4 - 1) + +#define QOS_TX0_CW_MIN_CCK cpu_to_le16(CW_MIN_CCK) +#define QOS_TX1_CW_MIN_CCK cpu_to_le16(CW_MIN_CCK) +#define QOS_TX2_CW_MIN_CCK cpu_to_le16((CW_MIN_CCK + 1)/2 - 1) +#define QOS_TX3_CW_MIN_CCK cpu_to_le16((CW_MIN_CCK + 1)/4 - 1) + +#define QOS_TX0_CW_MAX_OFDM cpu_to_le16(CW_MAX_OFDM) +#define QOS_TX1_CW_MAX_OFDM cpu_to_le16(CW_MAX_OFDM) +#define QOS_TX2_CW_MAX_OFDM cpu_to_le16(CW_MIN_OFDM) +#define QOS_TX3_CW_MAX_OFDM cpu_to_le16((CW_MIN_OFDM + 1)/2 - 1) + +#define QOS_TX0_CW_MAX_CCK cpu_to_le16(CW_MAX_CCK) +#define QOS_TX1_CW_MAX_CCK cpu_to_le16(CW_MAX_CCK) +#define QOS_TX2_CW_MAX_CCK cpu_to_le16(CW_MIN_CCK) +#define QOS_TX3_CW_MAX_CCK cpu_to_le16((CW_MIN_CCK + 1)/2 - 1) + +#define QOS_TX0_AIFS (3 - QOS_AIFSN_MIN_VALUE) +#define QOS_TX1_AIFS (7 - QOS_AIFSN_MIN_VALUE) +#define QOS_TX2_AIFS (2 - QOS_AIFSN_MIN_VALUE) +#define QOS_TX3_AIFS (2 - QOS_AIFSN_MIN_VALUE) + +#define QOS_TX0_ACM 0 +#define QOS_TX1_ACM 0 +#define QOS_TX2_ACM 0 +#define QOS_TX3_ACM 0 + +#define QOS_TX0_TXOP_LIMIT_CCK 0 +#define QOS_TX1_TXOP_LIMIT_CCK 0 +#define QOS_TX2_TXOP_LIMIT_CCK cpu_to_le16(6016) +#define QOS_TX3_TXOP_LIMIT_CCK cpu_to_le16(3264) + +#define QOS_TX0_TXOP_LIMIT_OFDM 0 +#define QOS_TX1_TXOP_LIMIT_OFDM 0 +#define QOS_TX2_TXOP_LIMIT_OFDM cpu_to_le16(3008) +#define QOS_TX3_TXOP_LIMIT_OFDM cpu_to_le16(1504) + +#define DEF_TX0_CW_MIN_OFDM cpu_to_le16(CW_MIN_OFDM) +#define DEF_TX1_CW_MIN_OFDM cpu_to_le16(CW_MIN_OFDM) +#define DEF_TX2_CW_MIN_OFDM cpu_to_le16(CW_MIN_OFDM) +#define DEF_TX3_CW_MIN_OFDM cpu_to_le16(CW_MIN_OFDM) + +#define DEF_TX0_CW_MIN_CCK cpu_to_le16(CW_MIN_CCK) +#define DEF_TX1_CW_MIN_CCK cpu_to_le16(CW_MIN_CCK) +#define DEF_TX2_CW_MIN_CCK cpu_to_le16(CW_MIN_CCK) +#define DEF_TX3_CW_MIN_CCK cpu_to_le16(CW_MIN_CCK) + +#define DEF_TX0_CW_MAX_OFDM cpu_to_le16(CW_MAX_OFDM) +#define DEF_TX1_CW_MAX_OFDM cpu_to_le16(CW_MAX_OFDM) +#define DEF_TX2_CW_MAX_OFDM cpu_to_le16(CW_MAX_OFDM) +#define DEF_TX3_CW_MAX_OFDM cpu_to_le16(CW_MAX_OFDM) + +#define DEF_TX0_CW_MAX_CCK cpu_to_le16(CW_MAX_CCK) +#define DEF_TX1_CW_MAX_CCK cpu_to_le16(CW_MAX_CCK) +#define DEF_TX2_CW_MAX_CCK cpu_to_le16(CW_MAX_CCK) +#define DEF_TX3_CW_MAX_CCK cpu_to_le16(CW_MAX_CCK) + +#define DEF_TX0_AIFS 0 +#define DEF_TX1_AIFS 0 +#define DEF_TX2_AIFS 0 +#define DEF_TX3_AIFS 0 + +#define DEF_TX0_ACM 0 +#define DEF_TX1_ACM 0 +#define DEF_TX2_ACM 0 +#define DEF_TX3_ACM 0 + +#define DEF_TX0_TXOP_LIMIT_CCK 0 +#define DEF_TX1_TXOP_LIMIT_CCK 0 +#define DEF_TX2_TXOP_LIMIT_CCK 0 +#define DEF_TX3_TXOP_LIMIT_CCK 0 + +#define DEF_TX0_TXOP_LIMIT_OFDM 0 +#define DEF_TX1_TXOP_LIMIT_OFDM 0 +#define DEF_TX2_TXOP_LIMIT_OFDM 0 +#define DEF_TX3_TXOP_LIMIT_OFDM 0 + +#define QOS_QOS_SETS 3 +#define QOS_PARAM_SET_ACTIVE 0 +#define QOS_PARAM_SET_DEF_CCK 1 +#define QOS_PARAM_SET_DEF_OFDM 2 + +#define CTRL_QOS_NO_ACK (0x0020) + +#define IPW_TX_QUEUE_1 1 +#define IPW_TX_QUEUE_2 2 +#define IPW_TX_QUEUE_3 3 +#define IPW_TX_QUEUE_4 4 + +/* QoS sturctures */ +struct ipw_qos_info { + int qos_enable; + struct libipw_qos_parameters *def_qos_parm_OFDM; + struct libipw_qos_parameters *def_qos_parm_CCK; + u32 burst_duration_CCK; + u32 burst_duration_OFDM; + u16 qos_no_ack_mask; + int burst_enable; +}; + +/**************************************************************/ +/** + * Generic queue structure + * + * Contains common data for Rx and Tx queues + */ +struct clx2_queue { + int n_bd; /**< number of BDs in this queue */ + int first_empty; /**< 1-st empty entry (index) */ + int last_used; /**< last used entry (index) */ + u32 reg_w; /**< 'write' reg (queue head), addr in domain 1 */ + u32 reg_r; /**< 'read' reg (queue tail), addr in domain 1 */ + dma_addr_t dma_addr; /**< physical addr for BD's */ + int low_mark; /**< low watermark, resume queue if free space more than this */ + int high_mark; /**< high watermark, stop queue if free space less than this */ +} __packed; /* XXX */ + +struct machdr32 { + __le16 frame_ctl; + __le16 duration; // watch out for endians! + u8 addr1[MACADRR_BYTE_LEN]; + u8 addr2[MACADRR_BYTE_LEN]; + u8 addr3[MACADRR_BYTE_LEN]; + __le16 seq_ctrl; // more endians! + u8 addr4[MACADRR_BYTE_LEN]; + __le16 qos_ctrl; +} __packed; + +struct machdr30 { + __le16 frame_ctl; + __le16 duration; // watch out for endians! + u8 addr1[MACADRR_BYTE_LEN]; + u8 addr2[MACADRR_BYTE_LEN]; + u8 addr3[MACADRR_BYTE_LEN]; + __le16 seq_ctrl; // more endians! + u8 addr4[MACADRR_BYTE_LEN]; +} __packed; + +struct machdr26 { + __le16 frame_ctl; + __le16 duration; // watch out for endians! + u8 addr1[MACADRR_BYTE_LEN]; + u8 addr2[MACADRR_BYTE_LEN]; + u8 addr3[MACADRR_BYTE_LEN]; + __le16 seq_ctrl; // more endians! + __le16 qos_ctrl; +} __packed; + +struct machdr24 { + __le16 frame_ctl; + __le16 duration; // watch out for endians! + u8 addr1[MACADRR_BYTE_LEN]; + u8 addr2[MACADRR_BYTE_LEN]; + u8 addr3[MACADRR_BYTE_LEN]; + __le16 seq_ctrl; // more endians! +} __packed; + +// TX TFD with 32 byte MAC Header +struct tx_tfd_32 { + struct machdr32 mchdr; // 32 + __le32 uivplaceholder[2]; // 8 +} __packed; + +// TX TFD with 30 byte MAC Header +struct tx_tfd_30 { + struct machdr30 mchdr; // 30 + u8 reserved[2]; // 2 + __le32 uivplaceholder[2]; // 8 +} __packed; + +// tx tfd with 26 byte mac header +struct tx_tfd_26 { + struct machdr26 mchdr; // 26 + u8 reserved1[2]; // 2 + __le32 uivplaceholder[2]; // 8 + u8 reserved2[4]; // 4 +} __packed; + +// tx tfd with 24 byte mac header +struct tx_tfd_24 { + struct machdr24 mchdr; // 24 + __le32 uivplaceholder[2]; // 8 + u8 reserved[8]; // 8 +} __packed; + +#define DCT_WEP_KEY_FIELD_LENGTH 16 + +struct tfd_command { + u8 index; + u8 length; + __le16 reserved; + u8 payload[]; +} __packed; + +struct tfd_data { + /* Header */ + __le32 work_area_ptr; + u8 station_number; /* 0 for BSS */ + u8 reserved1; + __le16 reserved2; + + /* Tx Parameters */ + u8 cmd_id; + u8 seq_num; + __le16 len; + u8 priority; + u8 tx_flags; + u8 tx_flags_ext; + u8 key_index; + u8 wepkey[DCT_WEP_KEY_FIELD_LENGTH]; + u8 rate; + u8 antenna; + __le16 next_packet_duration; + __le16 next_frag_len; + __le16 back_off_counter; //////txop; + u8 retrylimit; + __le16 cwcurrent; + u8 reserved3; + + /* 802.11 MAC Header */ + union { + struct tx_tfd_24 tfd_24; + struct tx_tfd_26 tfd_26; + struct tx_tfd_30 tfd_30; + struct tx_tfd_32 tfd_32; + } tfd; + + /* Payload DMA info */ + __le32 num_chunks; + __le32 chunk_ptr[NUM_TFD_CHUNKS]; + __le16 chunk_len[NUM_TFD_CHUNKS]; +} __packed; + +struct txrx_control_flags { + u8 message_type; + u8 rx_seq_num; + u8 control_bits; + u8 reserved; +} __packed; + +#define TFD_SIZE 128 +#define TFD_CMD_IMMEDIATE_PAYLOAD_LENGTH (TFD_SIZE - sizeof(struct txrx_control_flags)) + +struct tfd_frame { + struct txrx_control_flags control_flags; + union { + struct tfd_data data; + struct tfd_command cmd; + u8 raw[TFD_CMD_IMMEDIATE_PAYLOAD_LENGTH]; + } u; +} __packed; + +typedef void destructor_func(const void *); + +/** + * Tx Queue for DMA. Queue consists of circular buffer of + * BD's and required locking structures. + */ +struct clx2_tx_queue { + struct clx2_queue q; + struct tfd_frame *bd; + struct libipw_txb **txb; +}; + +/* + * RX related structures and functions + */ +#define RX_FREE_BUFFERS 32 +#define RX_LOW_WATERMARK 8 + +#define SUP_RATE_11A_MAX_NUM_CHANNELS 8 +#define SUP_RATE_11B_MAX_NUM_CHANNELS 4 +#define SUP_RATE_11G_MAX_NUM_CHANNELS 12 + +// Used for passing to driver number of successes and failures per rate +struct rate_histogram { + union { + __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; + __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; + __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; + } success; + union { + __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS]; + __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS]; + __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS]; + } failed; +} __packed; + +/* statistics command response */ +struct ipw_cmd_stats { + u8 cmd_id; + u8 seq_num; + __le16 good_sfd; + __le16 bad_plcp; + __le16 wrong_bssid; + __le16 valid_mpdu; + __le16 bad_mac_header; + __le16 reserved_frame_types; + __le16 rx_ina; + __le16 bad_crc32; + __le16 invalid_cts; + __le16 invalid_acks; + __le16 long_distance_ina_fina; + __le16 dsp_silence_unreachable; + __le16 accumulated_rssi; + __le16 rx_ovfl_frame_tossed; + __le16 rssi_silence_threshold; + __le16 rx_ovfl_frame_supplied; + __le16 last_rx_frame_signal; + __le16 last_rx_frame_noise; + __le16 rx_autodetec_no_ofdm; + __le16 rx_autodetec_no_barker; + __le16 reserved; +} __packed; + +struct notif_channel_result { + u8 channel_num; + struct ipw_cmd_stats stats; + u8 uReserved; +} __packed; + +#define SCAN_COMPLETED_STATUS_COMPLETE 1 +#define SCAN_COMPLETED_STATUS_ABORTED 2 + +struct notif_scan_complete { + u8 scan_type; + u8 num_channels; + u8 status; + u8 reserved; +} __packed; + +struct notif_frag_length { + __le16 frag_length; + __le16 reserved; +} __packed; + +struct notif_beacon_state { + __le32 state; + __le32 number; +} __packed; + +struct notif_tgi_tx_key { + u8 key_state; + u8 security_type; + u8 station_index; + u8 reserved; +} __packed; + +#define SILENCE_OVER_THRESH (1) +#define SILENCE_UNDER_THRESH (2) + +struct notif_link_deterioration { + struct ipw_cmd_stats stats; + u8 rate; + u8 modulation; + struct rate_histogram histogram; + u8 silence_notification_type; /* SILENCE_OVER/UNDER_THRESH */ + __le16 silence_count; +} __packed; + +struct notif_association { + u8 state; +} __packed; + +struct notif_authenticate { + u8 state; + struct machdr24 addr; + __le16 status; +} __packed; + +struct notif_calibration { + u8 data[104]; +} __packed; + +struct notif_noise { + __le32 value; +} __packed; + +struct ipw_rx_notification { + u8 reserved[8]; + u8 subtype; + u8 flags; + __le16 size; + union { + struct notif_association assoc; + struct notif_authenticate auth; + struct notif_channel_result channel_result; + struct notif_scan_complete scan_complete; + struct notif_frag_length frag_len; + struct notif_beacon_state beacon_state; + struct notif_tgi_tx_key tgi_tx_key; + struct notif_link_deterioration link_deterioration; + struct notif_calibration calibration; + struct notif_noise noise; + DECLARE_FLEX_ARRAY(u8, raw); + } u; +} __packed; + +struct ipw_rx_frame { + __le32 reserved1; + u8 parent_tsf[4]; // fw_use[0] is boolean for OUR_TSF_IS_GREATER + u8 received_channel; // The channel that this frame was received on. + // Note that for .11b this does not have to be + // the same as the channel that it was sent. + // Filled by LMAC + u8 frameStatus; + u8 rate; + u8 rssi; + u8 agc; + u8 rssi_dbm; + __le16 signal; + __le16 noise; + u8 antennaAndPhy; + u8 control; // control bit should be on in bg + u8 rtscts_rate; // rate of rts or cts (in rts cts sequence rate + // is identical) + u8 rtscts_seen; // 0x1 RTS seen ; 0x2 CTS seen + __le16 length; + u8 data[]; +} __packed; + +struct ipw_rx_header { + u8 message_type; + u8 rx_seq_num; + u8 control_bits; + u8 reserved; +} __packed; + +struct ipw_rx_packet { + struct ipw_rx_header header; + union { + struct ipw_rx_frame frame; + struct ipw_rx_notification notification; + } u; +} __packed; + +#define IPW_RX_NOTIFICATION_SIZE sizeof(struct ipw_rx_header) + 12 +#define IPW_RX_FRAME_SIZE (unsigned int)(sizeof(struct ipw_rx_header) + \ + sizeof(struct ipw_rx_frame)) + +struct ipw_rx_mem_buffer { + dma_addr_t dma_addr; + struct sk_buff *skb; + struct list_head list; +}; /* Not transferred over network, so not __packed */ + +struct ipw_rx_queue { + struct ipw_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; + struct ipw_rx_mem_buffer *queue[RX_QUEUE_SIZE]; + u32 processed; /* Internal index to last handled Rx packet */ + u32 read; /* Shared index to newest available Rx buffer */ + u32 write; /* Shared index to oldest written Rx packet */ + u32 free_count; /* Number of pre-allocated buffers in rx_free */ + /* Each of these lists is used as a FIFO for ipw_rx_mem_buffers */ + struct list_head rx_free; /* Own an SKBs */ + struct list_head rx_used; /* No SKB allocated */ + spinlock_t lock; +}; /* Not transferred over network, so not __packed */ + +struct alive_command_responce { + u8 alive_command; + u8 sequence_number; + __le16 software_revision; + u8 device_identifier; + u8 reserved1[5]; + __le16 reserved2; + __le16 reserved3; + __le16 clock_settle_time; + __le16 powerup_settle_time; + __le16 reserved4; + u8 time_stamp[5]; /* month, day, year, hours, minutes */ + u8 ucode_valid; +} __packed; + +#define IPW_MAX_RATES 12 + +struct ipw_rates { + u8 num_rates; + u8 rates[IPW_MAX_RATES]; +} __packed; + +struct command_block { + unsigned int control; + u32 source_addr; + u32 dest_addr; + unsigned int status; +} __packed; + +#define CB_NUMBER_OF_ELEMENTS_SMALL 64 +struct fw_image_desc { + unsigned long last_cb_index; + unsigned long current_cb_index; + struct command_block cb_list[CB_NUMBER_OF_ELEMENTS_SMALL]; + void *v_addr; + unsigned long p_addr; + unsigned long len; +}; + +struct ipw_sys_config { + u8 bt_coexistence; + u8 reserved1; + u8 answer_broadcast_ssid_probe; + u8 accept_all_data_frames; + u8 accept_non_directed_frames; + u8 exclude_unicast_unencrypted; + u8 disable_unicast_decryption; + u8 exclude_multicast_unencrypted; + u8 disable_multicast_decryption; + u8 antenna_diversity; + u8 pass_crc_to_host; + u8 dot11g_auto_detection; + u8 enable_cts_to_self; + u8 enable_multicast_filtering; + u8 bt_coexist_collision_thr; + u8 silence_threshold; + u8 accept_all_mgmt_bcpr; + u8 accept_all_mgmt_frames; + u8 pass_noise_stats_to_host; + u8 reserved3; +} __packed; + +struct ipw_multicast_addr { + u8 num_of_multicast_addresses; + u8 reserved[3]; + u8 mac1[6]; + u8 mac2[6]; + u8 mac3[6]; + u8 mac4[6]; +} __packed; + +#define DCW_WEP_KEY_INDEX_MASK 0x03 /* bits [0:1] */ +#define DCW_WEP_KEY_SEC_TYPE_MASK 0x30 /* bits [4:5] */ + +#define DCW_WEP_KEY_SEC_TYPE_WEP 0x00 +#define DCW_WEP_KEY_SEC_TYPE_CCM 0x20 +#define DCW_WEP_KEY_SEC_TYPE_TKIP 0x30 + +#define DCW_WEP_KEY_INVALID_SIZE 0x00 /* 0 = Invalid key */ +#define DCW_WEP_KEY64Bit_SIZE 0x05 /* 64-bit encryption */ +#define DCW_WEP_KEY128Bit_SIZE 0x0D /* 128-bit encryption */ +#define DCW_CCM_KEY128Bit_SIZE 0x10 /* 128-bit key */ +//#define DCW_WEP_KEY128BitIV_SIZE 0x10 /* 128-bit key and 128-bit IV */ + +struct ipw_wep_key { + u8 cmd_id; + u8 seq_num; + u8 key_index; + u8 key_size; + u8 key[16]; +} __packed; + +struct ipw_tgi_tx_key { + u8 key_id; + u8 security_type; + u8 station_index; + u8 flags; + u8 key[16]; + __le32 tx_counter[2]; +} __packed; + +#define IPW_SCAN_CHANNELS 54 + +struct ipw_scan_request { + u8 scan_type; + __le16 dwell_time; + u8 channels_list[IPW_SCAN_CHANNELS]; + u8 channels_reserved[3]; +} __packed; + +enum { + IPW_SCAN_PASSIVE_TILL_FIRST_BEACON_SCAN = 0, + IPW_SCAN_PASSIVE_FULL_DWELL_SCAN, + IPW_SCAN_ACTIVE_DIRECT_SCAN, + IPW_SCAN_ACTIVE_BROADCAST_SCAN, + IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN, + IPW_SCAN_TYPES +}; + +struct ipw_scan_request_ext { + __le32 full_scan_index; + u8 channels_list[IPW_SCAN_CHANNELS]; + u8 scan_type[IPW_SCAN_CHANNELS / 2]; + u8 reserved; + __le16 dwell_time[IPW_SCAN_TYPES]; +} __packed; + +static inline u8 ipw_get_scan_type(struct ipw_scan_request_ext *scan, u8 index) +{ + if (index % 2) + return scan->scan_type[index / 2] & 0x0F; + else + return (scan->scan_type[index / 2] & 0xF0) >> 4; +} + +static inline void ipw_set_scan_type(struct ipw_scan_request_ext *scan, + u8 index, u8 scan_type) +{ + if (index % 2) + scan->scan_type[index / 2] = + (scan->scan_type[index / 2] & 0xF0) | (scan_type & 0x0F); + else + scan->scan_type[index / 2] = + (scan->scan_type[index / 2] & 0x0F) | + ((scan_type & 0x0F) << 4); +} + +struct ipw_associate { + u8 channel; +#ifdef __LITTLE_ENDIAN_BITFIELD + u8 auth_type:4, auth_key:4; +#else + u8 auth_key:4, auth_type:4; +#endif + u8 assoc_type; + u8 reserved; + __le16 policy_support; + u8 preamble_length; + u8 ieee_mode; + u8 bssid[ETH_ALEN]; + __le32 assoc_tsf_msw; + __le32 assoc_tsf_lsw; + __le16 capability; + __le16 listen_interval; + __le16 beacon_interval; + u8 dest[ETH_ALEN]; + __le16 atim_window; + u8 smr; + u8 reserved1; + __le16 reserved2; +} __packed; + +struct ipw_supported_rates { + u8 ieee_mode; + u8 num_rates; + u8 purpose; + u8 reserved; + u8 supported_rates[IPW_MAX_RATES]; +} __packed; + +struct ipw_rts_threshold { + __le16 rts_threshold; + __le16 reserved; +} __packed; + +struct ipw_frag_threshold { + __le16 frag_threshold; + __le16 reserved; +} __packed; + +struct ipw_retry_limit { + u8 short_retry_limit; + u8 long_retry_limit; + __le16 reserved; +} __packed; + +struct ipw_dino_config { + __le32 dino_config_addr; + __le16 dino_config_size; + u8 dino_response; + u8 reserved; +} __packed; + +struct ipw_aironet_info { + u8 id; + u8 length; + __le16 reserved; +} __packed; + +struct ipw_rx_key { + u8 station_index; + u8 key_type; + u8 key_id; + u8 key_flag; + u8 key[16]; + u8 station_address[6]; + u8 key_index; + u8 reserved; +} __packed; + +struct ipw_country_channel_info { + u8 first_channel; + u8 no_channels; + s8 max_tx_power; +} __packed; + +struct ipw_country_info { + u8 id; + u8 length; + u8 country_str[IEEE80211_COUNTRY_STRING_LEN]; + struct ipw_country_channel_info groups[7]; +} __packed; + +struct ipw_channel_tx_power { + u8 channel_number; + s8 tx_power; +} __packed; + +#define SCAN_ASSOCIATED_INTERVAL (HZ) +#define SCAN_INTERVAL (HZ / 10) +#define MAX_A_CHANNELS 37 +#define MAX_B_CHANNELS 14 + +struct ipw_tx_power { + u8 num_channels; + u8 ieee_mode; + struct ipw_channel_tx_power channels_tx_power[MAX_A_CHANNELS]; +} __packed; + +struct ipw_rsn_capabilities { + u8 id; + u8 length; + __le16 version; +} __packed; + +struct ipw_sensitivity_calib { + __le16 beacon_rssi_raw; + __le16 reserved; +} __packed; + +/** + * Host command structure. + * + * On input, the following fields should be filled: + * - cmd + * - len + * - status_len + * - param (if needed) + * + * On output, + * - \a status contains status; + * - \a param filled with status parameters. + */ +struct ipw_cmd { /* XXX */ + u32 cmd; /**< Host command */ + u32 status;/**< Status */ + u32 status_len; + /**< How many 32 bit parameters in the status */ + u32 len; /**< incoming parameters length, bytes */ + /** + * command parameters. + * There should be enough space for incoming and + * outcoming parameters. + * Incoming parameters listed 1-st, followed by outcoming params. + * nParams=(len+3)/4+status_len + */ + u32 param[]; +} __packed; + +#define STATUS_HCMD_ACTIVE (1<<0) /**< host command in progress */ + +#define STATUS_INT_ENABLED (1<<1) +#define STATUS_RF_KILL_HW (1<<2) +#define STATUS_RF_KILL_SW (1<<3) +#define STATUS_RF_KILL_MASK (STATUS_RF_KILL_HW | STATUS_RF_KILL_SW) + +#define STATUS_INIT (1<<5) +#define STATUS_AUTH (1<<6) +#define STATUS_ASSOCIATED (1<<7) +#define STATUS_STATE_MASK (STATUS_INIT | STATUS_AUTH | STATUS_ASSOCIATED) + +#define STATUS_ASSOCIATING (1<<8) +#define STATUS_DISASSOCIATING (1<<9) +#define STATUS_ROAMING (1<<10) +#define STATUS_EXIT_PENDING (1<<11) +#define STATUS_DISASSOC_PENDING (1<<12) +#define STATUS_STATE_PENDING (1<<13) + +#define STATUS_DIRECT_SCAN_PENDING (1<<19) +#define STATUS_SCAN_PENDING (1<<20) +#define STATUS_SCANNING (1<<21) +#define STATUS_SCAN_ABORTING (1<<22) +#define STATUS_SCAN_FORCED (1<<23) + +#define STATUS_LED_LINK_ON (1<<24) +#define STATUS_LED_ACT_ON (1<<25) + +#define STATUS_INDIRECT_BYTE (1<<28) /* sysfs entry configured for access */ +#define STATUS_INDIRECT_DWORD (1<<29) /* sysfs entry configured for access */ +#define STATUS_DIRECT_DWORD (1<<30) /* sysfs entry configured for access */ + +#define STATUS_SECURITY_UPDATED (1<<31) /* Security sync needed */ + +#define CFG_STATIC_CHANNEL (1<<0) /* Restrict assoc. to single channel */ +#define CFG_STATIC_ESSID (1<<1) /* Restrict assoc. to single SSID */ +#define CFG_STATIC_BSSID (1<<2) /* Restrict assoc. to single BSSID */ +#define CFG_CUSTOM_MAC (1<<3) +#define CFG_PREAMBLE_LONG (1<<4) +#define CFG_ADHOC_PERSIST (1<<5) +#define CFG_ASSOCIATE (1<<6) +#define CFG_FIXED_RATE (1<<7) +#define CFG_ADHOC_CREATE (1<<8) +#define CFG_NO_LED (1<<9) +#define CFG_BACKGROUND_SCAN (1<<10) +#define CFG_SPEED_SCAN (1<<11) +#define CFG_NET_STATS (1<<12) + +#define CAP_SHARED_KEY (1<<0) /* Off = OPEN */ +#define CAP_PRIVACY_ON (1<<1) /* Off = No privacy */ + +#define MAX_STATIONS 32 +#define IPW_INVALID_STATION (0xff) + +struct ipw_station_entry { + u8 mac_addr[ETH_ALEN]; + u8 reserved; + u8 support_mode; +}; + +#define AVG_ENTRIES 8 +struct average { + s16 entries[AVG_ENTRIES]; + u8 pos; + u8 init; + s32 sum; +}; + +#define MAX_SPEED_SCAN 100 +#define IPW_IBSS_MAC_HASH_SIZE 31 + +struct ipw_ibss_seq { + u8 mac[ETH_ALEN]; + u16 seq_num; + u16 frag_num; + unsigned long packet_time; + struct list_head list; +}; + +struct ipw_error_elem { /* XXX */ + u32 desc; + u32 time; + u32 blink1; + u32 blink2; + u32 link1; + u32 link2; + u32 data; +}; + +struct ipw_event { /* XXX */ + u32 event; + u32 time; + u32 data; +} __packed; + +struct ipw_fw_error { /* XXX */ + unsigned long jiffies; + u32 status; + u32 config; + u32 elem_len; + u32 log_len; + struct ipw_error_elem *elem; + struct ipw_event *log; + u8 payload[]; +} __packed; + +#ifdef CONFIG_IPW2200_PROMISCUOUS + +enum ipw_prom_filter { + IPW_PROM_CTL_HEADER_ONLY = (1 << 0), + IPW_PROM_MGMT_HEADER_ONLY = (1 << 1), + IPW_PROM_DATA_HEADER_ONLY = (1 << 2), + IPW_PROM_ALL_HEADER_ONLY = 0xf, /* bits 0..3 */ + IPW_PROM_NO_TX = (1 << 4), + IPW_PROM_NO_RX = (1 << 5), + IPW_PROM_NO_CTL = (1 << 6), + IPW_PROM_NO_MGMT = (1 << 7), + IPW_PROM_NO_DATA = (1 << 8), +}; + +struct ipw_priv; +struct ipw_prom_priv { + struct ipw_priv *priv; + struct libipw_device *ieee; + enum ipw_prom_filter filter; + int tx_packets; + int rx_packets; +}; +#endif + +#if defined(CONFIG_IPW2200_RADIOTAP) || defined(CONFIG_IPW2200_PROMISCUOUS) +/* Magic struct that slots into the radiotap header -- no reason + * to build this manually element by element, we can write it much + * more efficiently than we can parse it. ORDER MATTERS HERE + * + * When sent to us via the simulated Rx interface in sysfs, the entire + * structure is provided regardless of any bits unset. + */ +struct ipw_rt_hdr { + struct ieee80211_radiotap_header rt_hdr; + u64 rt_tsf; /* TSF */ /* XXX */ + u8 rt_flags; /* radiotap packet flags */ + u8 rt_rate; /* rate in 500kb/s */ + __le16 rt_channel; /* channel in mhz */ + __le16 rt_chbitmask; /* channel bitfield */ + s8 rt_dbmsignal; /* signal in dbM, kluged to signed */ + s8 rt_dbmnoise; + u8 rt_antenna; /* antenna number */ + u8 payload[]; /* payload... */ +} __packed; +#endif + +struct ipw_priv { + /* ieee device used by generic ieee processing code */ + struct libipw_device *ieee; + + spinlock_t lock; + spinlock_t irq_lock; + struct mutex mutex; + + /* basic pci-network driver stuff */ + struct pci_dev *pci_dev; + struct net_device *net_dev; + +#ifdef CONFIG_IPW2200_PROMISCUOUS + /* Promiscuous mode */ + struct ipw_prom_priv *prom_priv; + struct net_device *prom_net_dev; +#endif + + /* pci hardware address support */ + void __iomem *hw_base; + unsigned long hw_len; + + struct fw_image_desc sram_desc; + + /* result of ucode download */ + struct alive_command_responce dino_alive; + + wait_queue_head_t wait_command_queue; + wait_queue_head_t wait_state; + + /* Rx and Tx DMA processing queues */ + struct ipw_rx_queue *rxq; + struct clx2_tx_queue txq_cmd; + struct clx2_tx_queue txq[4]; + u32 status; + u32 config; + u32 capability; + + struct average average_missed_beacons; + s16 exp_avg_rssi; + s16 exp_avg_noise; + u32 port_type; + int rx_bufs_min; /**< minimum number of bufs in Rx queue */ + int rx_pend_max; /**< maximum pending buffers for one IRQ */ + u32 hcmd_seq; /**< sequence number for hcmd */ + u32 disassociate_threshold; + u32 roaming_threshold; + + struct ipw_associate assoc_request; + struct libipw_network *assoc_network; + + unsigned long ts_scan_abort; + struct ipw_supported_rates rates; + struct ipw_rates phy[3]; /**< PHY restrictions, per band */ + struct ipw_rates supp; /**< software defined */ + struct ipw_rates extended; /**< use for corresp. IE, AP only */ + + struct notif_link_deterioration last_link_deterioration; /** for statistics */ + struct ipw_cmd *hcmd; /**< host command currently executed */ + + wait_queue_head_t hcmd_wq; /**< host command waits for execution */ + u32 tsf_bcn[2]; /**< TSF from latest beacon */ + + struct notif_calibration calib; /**< last calibration */ + + /* ordinal interface with firmware */ + u32 table0_addr; + u32 table0_len; + u32 table1_addr; + u32 table1_len; + u32 table2_addr; + u32 table2_len; + + /* context information */ + u8 essid[IW_ESSID_MAX_SIZE]; + u8 essid_len; + u8 nick[IW_ESSID_MAX_SIZE]; + u16 rates_mask; + u8 channel; + struct ipw_sys_config sys_config; + u32 power_mode; + u8 bssid[ETH_ALEN]; + u16 rts_threshold; + u8 mac_addr[ETH_ALEN]; + u8 num_stations; + u8 stations[MAX_STATIONS][ETH_ALEN]; + u8 short_retry_limit; + u8 long_retry_limit; + + u32 notif_missed_beacons; + + /* Statistics and counters normalized with each association */ + u32 last_missed_beacons; + u32 last_tx_packets; + u32 last_rx_packets; + u32 last_tx_failures; + u32 last_rx_err; + u32 last_rate; + + u32 missed_adhoc_beacons; + u32 missed_beacons; + u32 rx_packets; + u32 tx_packets; + u32 quality; + + u8 speed_scan[MAX_SPEED_SCAN]; + u8 speed_scan_pos; + + u16 last_seq_num; + u16 last_frag_num; + unsigned long last_packet_time; + struct list_head ibss_mac_hash[IPW_IBSS_MAC_HASH_SIZE]; + + /* eeprom */ + u8 eeprom[0x100]; /* 256 bytes of eeprom */ + u8 country[4]; + int eeprom_delay; + + struct iw_statistics wstats; + + struct iw_public_data wireless_data; + + int user_requested_scan; + u8 direct_scan_ssid[IW_ESSID_MAX_SIZE]; + u8 direct_scan_ssid_len; + + struct delayed_work adhoc_check; + struct work_struct associate; + struct work_struct disassociate; + struct work_struct system_config; + struct work_struct rx_replenish; + struct delayed_work request_scan; + struct delayed_work request_direct_scan; + struct delayed_work request_passive_scan; + struct delayed_work scan_event; + struct work_struct adapter_restart; + struct delayed_work rf_kill; + struct work_struct up; + struct work_struct down; + struct delayed_work gather_stats; + struct work_struct abort_scan; + struct work_struct roam; + struct delayed_work scan_check; + struct work_struct link_up; + struct work_struct link_down; + + struct tasklet_struct irq_tasklet; + + /* LED related variables and work_struct */ + u8 nic_type; + u32 led_activity_on; + u32 led_activity_off; + u32 led_association_on; + u32 led_association_off; + u32 led_ofdm_on; + u32 led_ofdm_off; + + struct delayed_work led_link_on; + struct delayed_work led_link_off; + struct delayed_work led_act_off; + struct work_struct merge_networks; + + struct ipw_cmd_log *cmdlog; + int cmdlog_len; + int cmdlog_pos; + +#define IPW_2200BG 1 +#define IPW_2915ABG 2 + u8 adapter; + + s8 tx_power; + + /* Track time in suspend using CLOCK_BOOTTIME */ + time64_t suspend_at; + time64_t suspend_time; + +#ifdef CONFIG_PM + u32 pm_state[16]; +#endif + + struct ipw_fw_error *error; + + /* network state */ + + /* Used to pass the current INTA value from ISR to Tasklet */ + u32 isr_inta; + + /* QoS */ + struct ipw_qos_info qos_data; + struct work_struct qos_activate; + /*********************************/ + + /* debugging info */ + u32 indirect_dword; + u32 direct_dword; + u32 indirect_byte; +}; /*ipw_priv */ + +/* debug macros */ + +/* Debug and printf string expansion helpers for printing bitfields */ +#define BIT_FMT8 "%c%c%c%c-%c%c%c%c" +#define BIT_FMT16 BIT_FMT8 ":" BIT_FMT8 +#define BIT_FMT32 BIT_FMT16 " " BIT_FMT16 + +#define BITC(x,y) (((x>>y)&1)?'1':'0') +#define BIT_ARG8(x) \ +BITC(x,7),BITC(x,6),BITC(x,5),BITC(x,4),\ +BITC(x,3),BITC(x,2),BITC(x,1),BITC(x,0) + +#define BIT_ARG16(x) \ +BITC(x,15),BITC(x,14),BITC(x,13),BITC(x,12),\ +BITC(x,11),BITC(x,10),BITC(x,9),BITC(x,8),\ +BIT_ARG8(x) + +#define BIT_ARG32(x) \ +BITC(x,31),BITC(x,30),BITC(x,29),BITC(x,28),\ +BITC(x,27),BITC(x,26),BITC(x,25),BITC(x,24),\ +BITC(x,23),BITC(x,22),BITC(x,21),BITC(x,20),\ +BITC(x,19),BITC(x,18),BITC(x,17),BITC(x,16),\ +BIT_ARG16(x) + + +#define IPW_DEBUG(level, fmt, args...) \ +do { if (ipw_debug_level & (level)) \ + printk(KERN_DEBUG DRV_NAME": %s " fmt, __func__ , ## args); } while (0) + +#ifdef CONFIG_IPW2200_DEBUG +#define IPW_LL_DEBUG(level, fmt, args...) \ +do { if (ipw_debug_level & (level)) \ + printk(KERN_DEBUG DRV_NAME": %s " fmt, __func__ , ## args); } while (0) +#else +#define IPW_LL_DEBUG(level, fmt, args...) do {} while (0) +#endif /* CONFIG_IPW2200_DEBUG */ + +/* + * To use the debug system; + * + * If you are defining a new debug classification, simply add it to the #define + * list here in the form of: + * + * #define IPW_DL_xxxx VALUE + * + * shifting value to the left one bit from the previous entry. xxxx should be + * the name of the classification (for example, WEP) + * + * You then need to either add a IPW_xxxx_DEBUG() macro definition for your + * classification, or use IPW_DEBUG(IPW_DL_xxxx, ...) whenever you want + * to send output to that classification. + * + * To add your debug level to the list of levels seen when you perform + * + * % cat /proc/net/ipw/debug_level + * + * you simply need to add your entry to the ipw_debug_levels array. + * + * If you do not see debug_level in /proc/net/ipw then you do not have + * CONFIG_IPW2200_DEBUG defined in your kernel configuration + * + */ + +#define IPW_DL_ERROR (1<<0) +#define IPW_DL_WARNING (1<<1) +#define IPW_DL_INFO (1<<2) +#define IPW_DL_WX (1<<3) +#define IPW_DL_HOST_COMMAND (1<<5) +#define IPW_DL_STATE (1<<6) + +#define IPW_DL_NOTIF (1<<10) +#define IPW_DL_SCAN (1<<11) +#define IPW_DL_ASSOC (1<<12) +#define IPW_DL_DROP (1<<13) +#define IPW_DL_IOCTL (1<<14) + +#define IPW_DL_MANAGE (1<<15) +#define IPW_DL_FW (1<<16) +#define IPW_DL_RF_KILL (1<<17) +#define IPW_DL_FW_ERRORS (1<<18) + +#define IPW_DL_LED (1<<19) + +#define IPW_DL_ORD (1<<20) + +#define IPW_DL_FRAG (1<<21) +#define IPW_DL_WEP (1<<22) +#define IPW_DL_TX (1<<23) +#define IPW_DL_RX (1<<24) +#define IPW_DL_ISR (1<<25) +#define IPW_DL_FW_INFO (1<<26) +#define IPW_DL_IO (1<<27) +#define IPW_DL_TRACE (1<<28) + +#define IPW_DL_STATS (1<<29) +#define IPW_DL_MERGE (1<<30) +#define IPW_DL_QOS (1<<31) + +#define IPW_ERROR(f, a...) printk(KERN_ERR DRV_NAME ": " f, ## a) +#define IPW_WARNING(f, a...) printk(KERN_WARNING DRV_NAME ": " f, ## a) +#define IPW_DEBUG_INFO(f, a...) IPW_DEBUG(IPW_DL_INFO, f, ## a) + +#define IPW_DEBUG_WX(f, a...) IPW_DEBUG(IPW_DL_WX, f, ## a) +#define IPW_DEBUG_SCAN(f, a...) IPW_DEBUG(IPW_DL_SCAN, f, ## a) +#define IPW_DEBUG_TRACE(f, a...) IPW_LL_DEBUG(IPW_DL_TRACE, f, ## a) +#define IPW_DEBUG_RX(f, a...) IPW_LL_DEBUG(IPW_DL_RX, f, ## a) +#define IPW_DEBUG_TX(f, a...) IPW_LL_DEBUG(IPW_DL_TX, f, ## a) +#define IPW_DEBUG_ISR(f, a...) IPW_LL_DEBUG(IPW_DL_ISR, f, ## a) +#define IPW_DEBUG_MANAGEMENT(f, a...) IPW_DEBUG(IPW_DL_MANAGE, f, ## a) +#define IPW_DEBUG_LED(f, a...) IPW_LL_DEBUG(IPW_DL_LED, f, ## a) +#define IPW_DEBUG_WEP(f, a...) IPW_LL_DEBUG(IPW_DL_WEP, f, ## a) +#define IPW_DEBUG_HC(f, a...) IPW_LL_DEBUG(IPW_DL_HOST_COMMAND, f, ## a) +#define IPW_DEBUG_FRAG(f, a...) IPW_LL_DEBUG(IPW_DL_FRAG, f, ## a) +#define IPW_DEBUG_FW(f, a...) IPW_LL_DEBUG(IPW_DL_FW, f, ## a) +#define IPW_DEBUG_RF_KILL(f, a...) IPW_DEBUG(IPW_DL_RF_KILL, f, ## a) +#define IPW_DEBUG_DROP(f, a...) IPW_DEBUG(IPW_DL_DROP, f, ## a) +#define IPW_DEBUG_IO(f, a...) IPW_LL_DEBUG(IPW_DL_IO, f, ## a) +#define IPW_DEBUG_ORD(f, a...) IPW_LL_DEBUG(IPW_DL_ORD, f, ## a) +#define IPW_DEBUG_FW_INFO(f, a...) IPW_LL_DEBUG(IPW_DL_FW_INFO, f, ## a) +#define IPW_DEBUG_NOTIF(f, a...) IPW_DEBUG(IPW_DL_NOTIF, f, ## a) +#define IPW_DEBUG_STATE(f, a...) IPW_DEBUG(IPW_DL_STATE | IPW_DL_ASSOC | IPW_DL_INFO, f, ## a) +#define IPW_DEBUG_ASSOC(f, a...) IPW_DEBUG(IPW_DL_ASSOC | IPW_DL_INFO, f, ## a) +#define IPW_DEBUG_STATS(f, a...) IPW_LL_DEBUG(IPW_DL_STATS, f, ## a) +#define IPW_DEBUG_MERGE(f, a...) IPW_LL_DEBUG(IPW_DL_MERGE, f, ## a) +#define IPW_DEBUG_QOS(f, a...) IPW_LL_DEBUG(IPW_DL_QOS, f, ## a) + +#include <linux/ctype.h> + +/* +* Register bit definitions +*/ + +#define IPW_INTA_RW 0x00000008 +#define IPW_INTA_MASK_R 0x0000000C +#define IPW_INDIRECT_ADDR 0x00000010 +#define IPW_INDIRECT_DATA 0x00000014 +#define IPW_AUTOINC_ADDR 0x00000018 +#define IPW_AUTOINC_DATA 0x0000001C +#define IPW_RESET_REG 0x00000020 +#define IPW_GP_CNTRL_RW 0x00000024 + +#define IPW_READ_INT_REGISTER 0xFF4 + +#define IPW_GP_CNTRL_BIT_INIT_DONE 0x00000004 + +#define IPW_REGISTER_DOMAIN1_END 0x00001000 +#define IPW_SRAM_READ_INT_REGISTER 0x00000ff4 + +#define IPW_SHARED_LOWER_BOUND 0x00000200 +#define IPW_INTERRUPT_AREA_LOWER_BOUND 0x00000f80 + +#define IPW_NIC_SRAM_LOWER_BOUND 0x00000000 +#define IPW_NIC_SRAM_UPPER_BOUND 0x00030000 + +#define IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER (1 << 29) +#define IPW_GP_CNTRL_BIT_CLOCK_READY 0x00000001 +#define IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY 0x00000002 + +/* + * RESET Register Bit Indexes + */ +#define CBD_RESET_REG_PRINCETON_RESET (1<<0) +#define IPW_START_STANDBY (1<<2) +#define IPW_ACTIVITY_LED (1<<4) +#define IPW_ASSOCIATED_LED (1<<5) +#define IPW_OFDM_LED (1<<6) +#define IPW_RESET_REG_SW_RESET (1<<7) +#define IPW_RESET_REG_MASTER_DISABLED (1<<8) +#define IPW_RESET_REG_STOP_MASTER (1<<9) +#define IPW_GATE_ODMA (1<<25) +#define IPW_GATE_IDMA (1<<26) +#define IPW_ARC_KESHET_CONFIG (1<<27) +#define IPW_GATE_ADMA (1<<29) + +#define IPW_CSR_CIS_UPPER_BOUND 0x00000200 +#define IPW_DOMAIN_0_END 0x1000 +#define CLX_MEM_BAR_SIZE 0x1000 + +/* Dino/baseband control registers bits */ + +#define DINO_ENABLE_SYSTEM 0x80 /* 1 = baseband processor on, 0 = reset */ +#define DINO_ENABLE_CS 0x40 /* 1 = enable ucode load */ +#define DINO_RXFIFO_DATA 0x01 /* 1 = data available */ +#define IPW_BASEBAND_CONTROL_STATUS 0X00200000 +#define IPW_BASEBAND_TX_FIFO_WRITE 0X00200004 +#define IPW_BASEBAND_RX_FIFO_READ 0X00200004 +#define IPW_BASEBAND_CONTROL_STORE 0X00200010 + +#define IPW_INTERNAL_CMD_EVENT 0X00300004 +#define IPW_BASEBAND_POWER_DOWN 0x00000001 + +#define IPW_MEM_HALT_AND_RESET 0x003000e0 + +/* defgroup bits_halt_reset MEM_HALT_AND_RESET register bits */ +#define IPW_BIT_HALT_RESET_ON 0x80000000 +#define IPW_BIT_HALT_RESET_OFF 0x00000000 + +#define CB_LAST_VALID 0x20000000 +#define CB_INT_ENABLED 0x40000000 +#define CB_VALID 0x80000000 +#define CB_SRC_LE 0x08000000 +#define CB_DEST_LE 0x04000000 +#define CB_SRC_AUTOINC 0x00800000 +#define CB_SRC_IO_GATED 0x00400000 +#define CB_DEST_AUTOINC 0x00080000 +#define CB_SRC_SIZE_LONG 0x00200000 +#define CB_DEST_SIZE_LONG 0x00020000 + +/* DMA DEFINES */ + +#define DMA_CONTROL_SMALL_CB_CONST_VALUE 0x00540000 +#define DMA_CB_STOP_AND_ABORT 0x00000C00 +#define DMA_CB_START 0x00000100 + +#define IPW_SHARED_SRAM_SIZE 0x00030000 +#define IPW_SHARED_SRAM_DMA_CONTROL 0x00027000 +#define CB_MAX_LENGTH 0x1FFF + +#define IPW_HOST_EEPROM_DATA_SRAM_SIZE 0xA18 +#define IPW_EEPROM_IMAGE_SIZE 0x100 + +/* DMA defs */ +#define IPW_DMA_I_CURRENT_CB 0x003000D0 +#define IPW_DMA_O_CURRENT_CB 0x003000D4 +#define IPW_DMA_I_DMA_CONTROL 0x003000A4 +#define IPW_DMA_I_CB_BASE 0x003000A0 + +#define IPW_TX_CMD_QUEUE_BD_BASE 0x00000200 +#define IPW_TX_CMD_QUEUE_BD_SIZE 0x00000204 +#define IPW_TX_QUEUE_0_BD_BASE 0x00000208 +#define IPW_TX_QUEUE_0_BD_SIZE (0x0000020C) +#define IPW_TX_QUEUE_1_BD_BASE 0x00000210 +#define IPW_TX_QUEUE_1_BD_SIZE 0x00000214 +#define IPW_TX_QUEUE_2_BD_BASE 0x00000218 +#define IPW_TX_QUEUE_2_BD_SIZE (0x0000021C) +#define IPW_TX_QUEUE_3_BD_BASE 0x00000220 +#define IPW_TX_QUEUE_3_BD_SIZE 0x00000224 +#define IPW_RX_BD_BASE 0x00000240 +#define IPW_RX_BD_SIZE 0x00000244 +#define IPW_RFDS_TABLE_LOWER 0x00000500 + +#define IPW_TX_CMD_QUEUE_READ_INDEX 0x00000280 +#define IPW_TX_QUEUE_0_READ_INDEX 0x00000284 +#define IPW_TX_QUEUE_1_READ_INDEX 0x00000288 +#define IPW_TX_QUEUE_2_READ_INDEX (0x0000028C) +#define IPW_TX_QUEUE_3_READ_INDEX 0x00000290 +#define IPW_RX_READ_INDEX (0x000002A0) + +#define IPW_TX_CMD_QUEUE_WRITE_INDEX (0x00000F80) +#define IPW_TX_QUEUE_0_WRITE_INDEX (0x00000F84) +#define IPW_TX_QUEUE_1_WRITE_INDEX (0x00000F88) +#define IPW_TX_QUEUE_2_WRITE_INDEX (0x00000F8C) +#define IPW_TX_QUEUE_3_WRITE_INDEX (0x00000F90) +#define IPW_RX_WRITE_INDEX (0x00000FA0) + +/* + * EEPROM Related Definitions + */ + +#define IPW_EEPROM_DATA_SRAM_ADDRESS (IPW_SHARED_LOWER_BOUND + 0x814) +#define IPW_EEPROM_DATA_SRAM_SIZE (IPW_SHARED_LOWER_BOUND + 0x818) +#define IPW_EEPROM_LOAD_DISABLE (IPW_SHARED_LOWER_BOUND + 0x81C) +#define IPW_EEPROM_DATA (IPW_SHARED_LOWER_BOUND + 0x820) +#define IPW_EEPROM_UPPER_ADDRESS (IPW_SHARED_LOWER_BOUND + 0x9E0) + +#define IPW_STATION_TABLE_LOWER (IPW_SHARED_LOWER_BOUND + 0xA0C) +#define IPW_STATION_TABLE_UPPER (IPW_SHARED_LOWER_BOUND + 0xB0C) +#define IPW_REQUEST_ATIM (IPW_SHARED_LOWER_BOUND + 0xB0C) +#define IPW_ATIM_SENT (IPW_SHARED_LOWER_BOUND + 0xB10) +#define IPW_WHO_IS_AWAKE (IPW_SHARED_LOWER_BOUND + 0xB14) +#define IPW_DURING_ATIM_WINDOW (IPW_SHARED_LOWER_BOUND + 0xB18) + +#define MSB 1 +#define LSB 0 +#define WORD_TO_BYTE(_word) ((_word) * sizeof(u16)) + +#define GET_EEPROM_ADDR(_wordoffset,_byteoffset) \ + ( WORD_TO_BYTE(_wordoffset) + (_byteoffset) ) + +/* EEPROM access by BYTE */ +#define EEPROM_PME_CAPABILITY (GET_EEPROM_ADDR(0x09,MSB)) /* 1 byte */ +#define EEPROM_MAC_ADDRESS (GET_EEPROM_ADDR(0x21,LSB)) /* 6 byte */ +#define EEPROM_VERSION (GET_EEPROM_ADDR(0x24,MSB)) /* 1 byte */ +#define EEPROM_NIC_TYPE (GET_EEPROM_ADDR(0x25,LSB)) /* 1 byte */ +#define EEPROM_SKU_CAPABILITY (GET_EEPROM_ADDR(0x25,MSB)) /* 1 byte */ +#define EEPROM_COUNTRY_CODE (GET_EEPROM_ADDR(0x26,LSB)) /* 3 bytes */ +#define EEPROM_IBSS_CHANNELS_BG (GET_EEPROM_ADDR(0x28,LSB)) /* 2 bytes */ +#define EEPROM_IBSS_CHANNELS_A (GET_EEPROM_ADDR(0x29,MSB)) /* 5 bytes */ +#define EEPROM_BSS_CHANNELS_BG (GET_EEPROM_ADDR(0x2c,LSB)) /* 2 bytes */ +#define EEPROM_HW_VERSION (GET_EEPROM_ADDR(0x72,LSB)) /* 2 bytes */ + +/* NIC type as found in the one byte EEPROM_NIC_TYPE offset */ +#define EEPROM_NIC_TYPE_0 0 +#define EEPROM_NIC_TYPE_1 1 +#define EEPROM_NIC_TYPE_2 2 +#define EEPROM_NIC_TYPE_3 3 +#define EEPROM_NIC_TYPE_4 4 + +/* Bluetooth Coexistence capabilities as found in EEPROM_SKU_CAPABILITY */ +#define EEPROM_SKU_CAP_BT_CHANNEL_SIG 0x01 /* we can tell BT our channel # */ +#define EEPROM_SKU_CAP_BT_PRIORITY 0x02 /* BT can take priority over us */ +#define EEPROM_SKU_CAP_BT_OOB 0x04 /* we can signal BT out-of-band */ + +#define FW_MEM_REG_LOWER_BOUND 0x00300000 +#define FW_MEM_REG_EEPROM_ACCESS (FW_MEM_REG_LOWER_BOUND + 0x40) +#define IPW_EVENT_REG (FW_MEM_REG_LOWER_BOUND + 0x04) +#define EEPROM_BIT_SK (1<<0) +#define EEPROM_BIT_CS (1<<1) +#define EEPROM_BIT_DI (1<<2) +#define EEPROM_BIT_DO (1<<4) + +#define EEPROM_CMD_READ 0x2 + +/* Interrupts masks */ +#define IPW_INTA_NONE 0x00000000 + +#define IPW_INTA_BIT_RX_TRANSFER 0x00000002 +#define IPW_INTA_BIT_STATUS_CHANGE 0x00000010 +#define IPW_INTA_BIT_BEACON_PERIOD_EXPIRED 0x00000020 + +//Inta Bits for CF +#define IPW_INTA_BIT_TX_CMD_QUEUE 0x00000800 +#define IPW_INTA_BIT_TX_QUEUE_1 0x00001000 +#define IPW_INTA_BIT_TX_QUEUE_2 0x00002000 +#define IPW_INTA_BIT_TX_QUEUE_3 0x00004000 +#define IPW_INTA_BIT_TX_QUEUE_4 0x00008000 + +#define IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE 0x00010000 + +#define IPW_INTA_BIT_PREPARE_FOR_POWER_DOWN 0x00100000 +#define IPW_INTA_BIT_POWER_DOWN 0x00200000 + +#define IPW_INTA_BIT_FW_INITIALIZATION_DONE 0x01000000 +#define IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE 0x02000000 +#define IPW_INTA_BIT_RF_KILL_DONE 0x04000000 +#define IPW_INTA_BIT_FATAL_ERROR 0x40000000 +#define IPW_INTA_BIT_PARITY_ERROR 0x80000000 + +/* Interrupts enabled at init time. */ +#define IPW_INTA_MASK_ALL \ + (IPW_INTA_BIT_TX_QUEUE_1 | \ + IPW_INTA_BIT_TX_QUEUE_2 | \ + IPW_INTA_BIT_TX_QUEUE_3 | \ + IPW_INTA_BIT_TX_QUEUE_4 | \ + IPW_INTA_BIT_TX_CMD_QUEUE | \ + IPW_INTA_BIT_RX_TRANSFER | \ + IPW_INTA_BIT_FATAL_ERROR | \ + IPW_INTA_BIT_PARITY_ERROR | \ + IPW_INTA_BIT_STATUS_CHANGE | \ + IPW_INTA_BIT_FW_INITIALIZATION_DONE | \ + IPW_INTA_BIT_BEACON_PERIOD_EXPIRED | \ + IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE | \ + IPW_INTA_BIT_PREPARE_FOR_POWER_DOWN | \ + IPW_INTA_BIT_POWER_DOWN | \ + IPW_INTA_BIT_RF_KILL_DONE ) + +/* FW event log definitions */ +#define EVENT_ELEM_SIZE (3 * sizeof(u32)) +#define EVENT_START_OFFSET (1 * sizeof(u32) + 2 * sizeof(u16)) + +/* FW error log definitions */ +#define ERROR_ELEM_SIZE (7 * sizeof(u32)) +#define ERROR_START_OFFSET (1 * sizeof(u32)) + +/* TX power level (dbm) */ +#define IPW_TX_POWER_MIN -12 +#define IPW_TX_POWER_MAX 20 +#define IPW_TX_POWER_DEFAULT IPW_TX_POWER_MAX + +enum { + IPW_FW_ERROR_OK = 0, + IPW_FW_ERROR_FAIL, + IPW_FW_ERROR_MEMORY_UNDERFLOW, + IPW_FW_ERROR_MEMORY_OVERFLOW, + IPW_FW_ERROR_BAD_PARAM, + IPW_FW_ERROR_BAD_CHECKSUM, + IPW_FW_ERROR_NMI_INTERRUPT, + IPW_FW_ERROR_BAD_DATABASE, + IPW_FW_ERROR_ALLOC_FAIL, + IPW_FW_ERROR_DMA_UNDERRUN, + IPW_FW_ERROR_DMA_STATUS, + IPW_FW_ERROR_DINO_ERROR, + IPW_FW_ERROR_EEPROM_ERROR, + IPW_FW_ERROR_SYSASSERT, + IPW_FW_ERROR_FATAL_ERROR +}; + +#define AUTH_OPEN 0 +#define AUTH_SHARED_KEY 1 +#define AUTH_LEAP 2 +#define AUTH_IGNORE 3 + +#define HC_ASSOCIATE 0 +#define HC_REASSOCIATE 1 +#define HC_DISASSOCIATE 2 +#define HC_IBSS_START 3 +#define HC_IBSS_RECONF 4 +#define HC_DISASSOC_QUIET 5 + +#define HC_QOS_SUPPORT_ASSOC cpu_to_le16(0x01) + +#define IPW_RATE_CAPABILITIES 1 +#define IPW_RATE_CONNECT 0 + +/* + * Rate values and masks + */ +#define IPW_TX_RATE_1MB 0x0A +#define IPW_TX_RATE_2MB 0x14 +#define IPW_TX_RATE_5MB 0x37 +#define IPW_TX_RATE_6MB 0x0D +#define IPW_TX_RATE_9MB 0x0F +#define IPW_TX_RATE_11MB 0x6E +#define IPW_TX_RATE_12MB 0x05 +#define IPW_TX_RATE_18MB 0x07 +#define IPW_TX_RATE_24MB 0x09 +#define IPW_TX_RATE_36MB 0x0B +#define IPW_TX_RATE_48MB 0x01 +#define IPW_TX_RATE_54MB 0x03 + +#define IPW_ORD_TABLE_ID_MASK 0x0000FF00 +#define IPW_ORD_TABLE_VALUE_MASK 0x000000FF + +#define IPW_ORD_TABLE_0_MASK 0x0000F000 +#define IPW_ORD_TABLE_1_MASK 0x0000F100 +#define IPW_ORD_TABLE_2_MASK 0x0000F200 +#define IPW_ORD_TABLE_3_MASK 0x0000F300 +#define IPW_ORD_TABLE_4_MASK 0x0000F400 +#define IPW_ORD_TABLE_5_MASK 0x0000F500 +#define IPW_ORD_TABLE_6_MASK 0x0000F600 +#define IPW_ORD_TABLE_7_MASK 0x0000F700 + +/* + * Table 0 Entries (all entries are 32 bits) + */ +enum { + IPW_ORD_STAT_TX_CURR_RATE = IPW_ORD_TABLE_0_MASK + 1, + IPW_ORD_STAT_FRAG_TRESHOLD, + IPW_ORD_STAT_RTS_THRESHOLD, + IPW_ORD_STAT_TX_HOST_REQUESTS, + IPW_ORD_STAT_TX_HOST_COMPLETE, + IPW_ORD_STAT_TX_DIR_DATA, + IPW_ORD_STAT_TX_DIR_DATA_B_1, + IPW_ORD_STAT_TX_DIR_DATA_B_2, + IPW_ORD_STAT_TX_DIR_DATA_B_5_5, + IPW_ORD_STAT_TX_DIR_DATA_B_11, + /* Hole */ + + IPW_ORD_STAT_TX_DIR_DATA_G_1 = IPW_ORD_TABLE_0_MASK + 19, + IPW_ORD_STAT_TX_DIR_DATA_G_2, + IPW_ORD_STAT_TX_DIR_DATA_G_5_5, + IPW_ORD_STAT_TX_DIR_DATA_G_6, + IPW_ORD_STAT_TX_DIR_DATA_G_9, + IPW_ORD_STAT_TX_DIR_DATA_G_11, + IPW_ORD_STAT_TX_DIR_DATA_G_12, + IPW_ORD_STAT_TX_DIR_DATA_G_18, + IPW_ORD_STAT_TX_DIR_DATA_G_24, + IPW_ORD_STAT_TX_DIR_DATA_G_36, + IPW_ORD_STAT_TX_DIR_DATA_G_48, + IPW_ORD_STAT_TX_DIR_DATA_G_54, + IPW_ORD_STAT_TX_NON_DIR_DATA, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_1, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_2, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_5_5, + IPW_ORD_STAT_TX_NON_DIR_DATA_B_11, + /* Hole */ + + IPW_ORD_STAT_TX_NON_DIR_DATA_G_1 = IPW_ORD_TABLE_0_MASK + 44, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_2, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_5_5, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_6, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_9, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_11, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_12, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_18, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_24, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_36, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_48, + IPW_ORD_STAT_TX_NON_DIR_DATA_G_54, + IPW_ORD_STAT_TX_RETRY, + IPW_ORD_STAT_TX_FAILURE, + IPW_ORD_STAT_RX_ERR_CRC, + IPW_ORD_STAT_RX_ERR_ICV, + IPW_ORD_STAT_RX_NO_BUFFER, + IPW_ORD_STAT_FULL_SCANS, + IPW_ORD_STAT_PARTIAL_SCANS, + IPW_ORD_STAT_TGH_ABORTED_SCANS, + IPW_ORD_STAT_TX_TOTAL_BYTES, + IPW_ORD_STAT_CURR_RSSI_RAW, + IPW_ORD_STAT_RX_BEACON, + IPW_ORD_STAT_MISSED_BEACONS, + IPW_ORD_TABLE_0_LAST +}; + +#define IPW_RSSI_TO_DBM 112 + +/* Table 1 Entries + */ +enum { + IPW_ORD_TABLE_1_LAST = IPW_ORD_TABLE_1_MASK | 1, +}; + +/* + * Table 2 Entries + * + * FW_VERSION: 16 byte string + * FW_DATE: 16 byte string (only 14 bytes used) + * UCODE_VERSION: 4 byte version code + * UCODE_DATE: 5 bytes code code + * ADDAPTER_MAC: 6 byte MAC address + * RTC: 4 byte clock + */ +enum { + IPW_ORD_STAT_FW_VERSION = IPW_ORD_TABLE_2_MASK | 1, + IPW_ORD_STAT_FW_DATE, + IPW_ORD_STAT_UCODE_VERSION, + IPW_ORD_STAT_UCODE_DATE, + IPW_ORD_STAT_ADAPTER_MAC, + IPW_ORD_STAT_RTC, + IPW_ORD_TABLE_2_LAST +}; + +/* Table 3 */ +enum { + IPW_ORD_STAT_TX_PACKET = IPW_ORD_TABLE_3_MASK | 0, + IPW_ORD_STAT_TX_PACKET_FAILURE, + IPW_ORD_STAT_TX_PACKET_SUCCESS, + IPW_ORD_STAT_TX_PACKET_ABORTED, + IPW_ORD_TABLE_3_LAST +}; + +/* Table 4 */ +enum { + IPW_ORD_TABLE_4_LAST = IPW_ORD_TABLE_4_MASK +}; + +/* Table 5 */ +enum { + IPW_ORD_STAT_AVAILABLE_AP_COUNT = IPW_ORD_TABLE_5_MASK, + IPW_ORD_STAT_AP_ASSNS, + IPW_ORD_STAT_ROAM, + IPW_ORD_STAT_ROAM_CAUSE_MISSED_BEACONS, + IPW_ORD_STAT_ROAM_CAUSE_UNASSOC, + IPW_ORD_STAT_ROAM_CAUSE_RSSI, + IPW_ORD_STAT_ROAM_CAUSE_LINK_QUALITY, + IPW_ORD_STAT_ROAM_CAUSE_AP_LOAD_BALANCE, + IPW_ORD_STAT_ROAM_CAUSE_AP_NO_TX, + IPW_ORD_STAT_LINK_UP, + IPW_ORD_STAT_LINK_DOWN, + IPW_ORD_ANTENNA_DIVERSITY, + IPW_ORD_CURR_FREQ, + IPW_ORD_TABLE_5_LAST +}; + +/* Table 6 */ +enum { + IPW_ORD_COUNTRY_CODE = IPW_ORD_TABLE_6_MASK, + IPW_ORD_CURR_BSSID, + IPW_ORD_CURR_SSID, + IPW_ORD_TABLE_6_LAST +}; + +/* Table 7 */ +enum { + IPW_ORD_STAT_PERCENT_MISSED_BEACONS = IPW_ORD_TABLE_7_MASK, + IPW_ORD_STAT_PERCENT_TX_RETRIES, + IPW_ORD_STAT_PERCENT_LINK_QUALITY, + IPW_ORD_STAT_CURR_RSSI_DBM, + IPW_ORD_TABLE_7_LAST +}; + +#define IPW_ERROR_LOG (IPW_SHARED_LOWER_BOUND + 0x410) +#define IPW_EVENT_LOG (IPW_SHARED_LOWER_BOUND + 0x414) +#define IPW_ORDINALS_TABLE_LOWER (IPW_SHARED_LOWER_BOUND + 0x500) +#define IPW_ORDINALS_TABLE_0 (IPW_SHARED_LOWER_BOUND + 0x180) +#define IPW_ORDINALS_TABLE_1 (IPW_SHARED_LOWER_BOUND + 0x184) +#define IPW_ORDINALS_TABLE_2 (IPW_SHARED_LOWER_BOUND + 0x188) +#define IPW_MEM_FIXED_OVERRIDE (IPW_SHARED_LOWER_BOUND + 0x41C) + +struct ipw_fixed_rate { + __le16 tx_rates; + __le16 reserved; +} __packed; + +#define IPW_INDIRECT_ADDR_MASK (~0x3ul) + +struct host_cmd { + u8 cmd; + u8 len; + u16 reserved; + const u32 *param; +} __packed; /* XXX */ + +struct cmdlog_host_cmd { + u8 cmd; + u8 len; + __le16 reserved; + char param[124]; +} __packed; + +struct ipw_cmd_log { + unsigned long jiffies; + int retcode; + struct cmdlog_host_cmd cmd; +}; + +/* SysConfig command parameters ... */ +/* bt_coexistence param */ +#define CFG_BT_COEXISTENCE_SIGNAL_CHNL 0x01 /* tell BT our chnl # */ +#define CFG_BT_COEXISTENCE_DEFER 0x02 /* defer our Tx if BT traffic */ +#define CFG_BT_COEXISTENCE_KILL 0x04 /* kill our Tx if BT traffic */ +#define CFG_BT_COEXISTENCE_WME_OVER_BT 0x08 /* multimedia extensions */ +#define CFG_BT_COEXISTENCE_OOB 0x10 /* signal BT via out-of-band */ + +/* clear-to-send to self param */ +#define CFG_CTS_TO_ITSELF_ENABLED_MIN 0x00 +#define CFG_CTS_TO_ITSELF_ENABLED_MAX 0x01 +#define CFG_CTS_TO_ITSELF_ENABLED_DEF CFG_CTS_TO_ITSELF_ENABLED_MIN + +/* Antenna diversity param (h/w can select best antenna, based on signal) */ +#define CFG_SYS_ANTENNA_BOTH 0x00 /* NIC selects best antenna */ +#define CFG_SYS_ANTENNA_A 0x01 /* force antenna A */ +#define CFG_SYS_ANTENNA_B 0x03 /* force antenna B */ +#define CFG_SYS_ANTENNA_SLOW_DIV 0x02 /* consider background noise */ + +#define IPW_MAX_CONFIG_RETRIES 10 + +#endif /* __ipw2200_h__ */ diff --git a/drivers/net/wireless/intel/ipw2x00/libipw.h b/drivers/net/wireless/intel/ipw2x00/libipw.h new file mode 100644 index 000000000..bec7bc273 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/libipw.h @@ -0,0 +1,1001 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11 + * remains copyright by the original authors + * + * Portions of the merged code are based on Host AP (software wireless + * LAN access point) driver for Intersil Prism2/2.5/3. + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * <j@w1.fi> + * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> + * + * Adaption to a generic IEEE 802.11 stack by James Ketrenos + * <jketreno@linux.intel.com> + * Copyright (c) 2004-2005, Intel Corporation + * + * API Version History + * 1.0.x -- Initial version + * 1.1.x -- Added radiotap, QoS, TIM, libipw_geo APIs, + * various structure changes, and crypto API init method + */ +#ifndef LIBIPW_H +#define LIBIPW_H +#include <linux/if_ether.h> /* ETH_ALEN */ +#include <linux/kernel.h> /* ARRAY_SIZE */ +#include <linux/wireless.h> +#include <linux/ieee80211.h> + +#include <net/lib80211.h> +#include <net/cfg80211.h> + +#define LIBIPW_VERSION "git-1.1.13" + +#define LIBIPW_DATA_LEN 2304 +/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section + 6.2.1.1.2. + + The figure in section 7.1.2 suggests a body size of up to 2312 + bytes is allowed, which is a bit confusing, I suspect this + represents the 2304 bytes of real data, plus a possible 8 bytes of + WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ + +#define LIBIPW_1ADDR_LEN 10 +#define LIBIPW_2ADDR_LEN 16 +#define LIBIPW_3ADDR_LEN 24 +#define LIBIPW_4ADDR_LEN 30 +#define LIBIPW_FCS_LEN 4 +#define LIBIPW_HLEN (LIBIPW_4ADDR_LEN) +#define LIBIPW_FRAME_LEN (LIBIPW_DATA_LEN + LIBIPW_HLEN) + +#define MIN_FRAG_THRESHOLD 256U +#define MAX_FRAG_THRESHOLD 2346U + +/* QOS control */ +#define LIBIPW_QCTL_TID 0x000F + +/* debug macros */ + +#ifdef CONFIG_LIBIPW_DEBUG +extern u32 libipw_debug_level; +#define LIBIPW_DEBUG(level, fmt, args...) \ +do { if (libipw_debug_level & (level)) \ + printk(KERN_DEBUG "libipw: %s " fmt, __func__ , ## args); } while (0) +#else +#define LIBIPW_DEBUG(level, fmt, args...) do {} while (0) +#endif /* CONFIG_LIBIPW_DEBUG */ + +/* + * To use the debug system: + * + * If you are defining a new debug classification, simply add it to the #define + * list here in the form of: + * + * #define LIBIPW_DL_xxxx VALUE + * + * shifting value to the left one bit from the previous entry. xxxx should be + * the name of the classification (for example, WEP) + * + * You then need to either add a LIBIPW_xxxx_DEBUG() macro definition for your + * classification, or use LIBIPW_DEBUG(LIBIPW_DL_xxxx, ...) whenever you want + * to send output to that classification. + * + * To add your debug level to the list of levels seen when you perform + * + * % cat /proc/net/ieee80211/debug_level + * + * you simply need to add your entry to the libipw_debug_level array. + * + * If you do not see debug_level in /proc/net/ieee80211 then you do not have + * CONFIG_LIBIPW_DEBUG defined in your kernel configuration + * + */ + +#define LIBIPW_DL_INFO (1<<0) +#define LIBIPW_DL_WX (1<<1) +#define LIBIPW_DL_SCAN (1<<2) +#define LIBIPW_DL_STATE (1<<3) +#define LIBIPW_DL_MGMT (1<<4) +#define LIBIPW_DL_FRAG (1<<5) +#define LIBIPW_DL_DROP (1<<7) + +#define LIBIPW_DL_TX (1<<8) +#define LIBIPW_DL_RX (1<<9) +#define LIBIPW_DL_QOS (1<<31) + +#define LIBIPW_ERROR(f, a...) printk(KERN_ERR "libipw: " f, ## a) +#define LIBIPW_WARNING(f, a...) printk(KERN_WARNING "libipw: " f, ## a) +#define LIBIPW_DEBUG_INFO(f, a...) LIBIPW_DEBUG(LIBIPW_DL_INFO, f, ## a) + +#define LIBIPW_DEBUG_WX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_WX, f, ## a) +#define LIBIPW_DEBUG_SCAN(f, a...) LIBIPW_DEBUG(LIBIPW_DL_SCAN, f, ## a) +#define LIBIPW_DEBUG_STATE(f, a...) LIBIPW_DEBUG(LIBIPW_DL_STATE, f, ## a) +#define LIBIPW_DEBUG_MGMT(f, a...) LIBIPW_DEBUG(LIBIPW_DL_MGMT, f, ## a) +#define LIBIPW_DEBUG_FRAG(f, a...) LIBIPW_DEBUG(LIBIPW_DL_FRAG, f, ## a) +#define LIBIPW_DEBUG_DROP(f, a...) LIBIPW_DEBUG(LIBIPW_DL_DROP, f, ## a) +#define LIBIPW_DEBUG_TX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_TX, f, ## a) +#define LIBIPW_DEBUG_RX(f, a...) LIBIPW_DEBUG(LIBIPW_DL_RX, f, ## a) +#define LIBIPW_DEBUG_QOS(f, a...) LIBIPW_DEBUG(LIBIPW_DL_QOS, f, ## a) +#include <linux/netdevice.h> +#include <linux/if_arp.h> /* ARPHRD_ETHER */ + +#ifndef WIRELESS_SPY +#define WIRELESS_SPY /* enable iwspy support */ +#endif +#include <net/iw_handler.h> /* new driver API */ + +#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ + +#ifndef ETH_P_80211_RAW +#define ETH_P_80211_RAW (ETH_P_ECONET + 1) +#endif + +/* IEEE 802.11 defines */ + +#define P80211_OUI_LEN 3 + +struct libipw_snap_hdr { + + u8 dsap; /* always 0xAA */ + u8 ssap; /* always 0xAA */ + u8 ctrl; /* always 0x03 */ + u8 oui[P80211_OUI_LEN]; /* organizational universal id */ + +} __packed; + +#define SNAP_SIZE sizeof(struct libipw_snap_hdr) + +#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS) +#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) +#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) + +#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) +#define WLAN_GET_SEQ_SEQ(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) + +#define LIBIPW_STATMASK_SIGNAL (1<<0) +#define LIBIPW_STATMASK_RSSI (1<<1) +#define LIBIPW_STATMASK_NOISE (1<<2) +#define LIBIPW_STATMASK_RATE (1<<3) +#define LIBIPW_STATMASK_WEMASK 0x7 + +#define LIBIPW_CCK_MODULATION (1<<0) +#define LIBIPW_OFDM_MODULATION (1<<1) + +#define LIBIPW_24GHZ_BAND (1<<0) +#define LIBIPW_52GHZ_BAND (1<<1) + +#define LIBIPW_CCK_RATE_1MB 0x02 +#define LIBIPW_CCK_RATE_2MB 0x04 +#define LIBIPW_CCK_RATE_5MB 0x0B +#define LIBIPW_CCK_RATE_11MB 0x16 +#define LIBIPW_OFDM_RATE_6MB 0x0C +#define LIBIPW_OFDM_RATE_9MB 0x12 +#define LIBIPW_OFDM_RATE_12MB 0x18 +#define LIBIPW_OFDM_RATE_18MB 0x24 +#define LIBIPW_OFDM_RATE_24MB 0x30 +#define LIBIPW_OFDM_RATE_36MB 0x48 +#define LIBIPW_OFDM_RATE_48MB 0x60 +#define LIBIPW_OFDM_RATE_54MB 0x6C +#define LIBIPW_BASIC_RATE_MASK 0x80 + +#define LIBIPW_CCK_RATE_1MB_MASK (1<<0) +#define LIBIPW_CCK_RATE_2MB_MASK (1<<1) +#define LIBIPW_CCK_RATE_5MB_MASK (1<<2) +#define LIBIPW_CCK_RATE_11MB_MASK (1<<3) +#define LIBIPW_OFDM_RATE_6MB_MASK (1<<4) +#define LIBIPW_OFDM_RATE_9MB_MASK (1<<5) +#define LIBIPW_OFDM_RATE_12MB_MASK (1<<6) +#define LIBIPW_OFDM_RATE_18MB_MASK (1<<7) +#define LIBIPW_OFDM_RATE_24MB_MASK (1<<8) +#define LIBIPW_OFDM_RATE_36MB_MASK (1<<9) +#define LIBIPW_OFDM_RATE_48MB_MASK (1<<10) +#define LIBIPW_OFDM_RATE_54MB_MASK (1<<11) + +#define LIBIPW_CCK_RATES_MASK 0x0000000F +#define LIBIPW_CCK_BASIC_RATES_MASK (LIBIPW_CCK_RATE_1MB_MASK | \ + LIBIPW_CCK_RATE_2MB_MASK) +#define LIBIPW_CCK_DEFAULT_RATES_MASK (LIBIPW_CCK_BASIC_RATES_MASK | \ + LIBIPW_CCK_RATE_5MB_MASK | \ + LIBIPW_CCK_RATE_11MB_MASK) + +#define LIBIPW_OFDM_RATES_MASK 0x00000FF0 +#define LIBIPW_OFDM_BASIC_RATES_MASK (LIBIPW_OFDM_RATE_6MB_MASK | \ + LIBIPW_OFDM_RATE_12MB_MASK | \ + LIBIPW_OFDM_RATE_24MB_MASK) +#define LIBIPW_OFDM_DEFAULT_RATES_MASK (LIBIPW_OFDM_BASIC_RATES_MASK | \ + LIBIPW_OFDM_RATE_9MB_MASK | \ + LIBIPW_OFDM_RATE_18MB_MASK | \ + LIBIPW_OFDM_RATE_36MB_MASK | \ + LIBIPW_OFDM_RATE_48MB_MASK | \ + LIBIPW_OFDM_RATE_54MB_MASK) +#define LIBIPW_DEFAULT_RATES_MASK (LIBIPW_OFDM_DEFAULT_RATES_MASK | \ + LIBIPW_CCK_DEFAULT_RATES_MASK) + +#define LIBIPW_NUM_OFDM_RATES 8 +#define LIBIPW_NUM_CCK_RATES 4 +#define LIBIPW_OFDM_SHIFT_MASK_A 4 + +/* NOTE: This data is for statistical purposes; not all hardware provides this + * information for frames received. + * For libipw_rx_mgt, you need to set at least the 'len' parameter. + */ +struct libipw_rx_stats { + u32 mac_time; + s8 rssi; + u8 signal; + u8 noise; + u16 rate; /* in 100 kbps */ + u8 received_channel; + u8 control; + u8 mask; + u8 freq; + u16 len; + u64 tsf; + u32 beacon_time; +}; + +/* IEEE 802.11 requires that STA supports concurrent reception of at least + * three fragmented frames. This define can be increased to support more + * concurrent frames, but it should be noted that each entry can consume about + * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ +#define LIBIPW_FRAG_CACHE_LEN 4 + +struct libipw_frag_entry { + unsigned long first_frag_time; + unsigned int seq; + unsigned int last_frag; + struct sk_buff *skb; + u8 src_addr[ETH_ALEN]; + u8 dst_addr[ETH_ALEN]; +}; + +struct libipw_stats { + unsigned int tx_unicast_frames; + unsigned int tx_multicast_frames; + unsigned int tx_fragments; + unsigned int tx_unicast_octets; + unsigned int tx_multicast_octets; + unsigned int tx_deferred_transmissions; + unsigned int tx_single_retry_frames; + unsigned int tx_multiple_retry_frames; + unsigned int tx_retry_limit_exceeded; + unsigned int tx_discards; + unsigned int rx_unicast_frames; + unsigned int rx_multicast_frames; + unsigned int rx_fragments; + unsigned int rx_unicast_octets; + unsigned int rx_multicast_octets; + unsigned int rx_fcs_errors; + unsigned int rx_discards_no_buffer; + unsigned int tx_discards_wrong_sa; + unsigned int rx_discards_undecryptable; + unsigned int rx_message_in_msg_fragments; + unsigned int rx_message_in_bad_msg_fragments; +}; + +struct libipw_device; + +#define SEC_KEY_1 (1<<0) +#define SEC_KEY_2 (1<<1) +#define SEC_KEY_3 (1<<2) +#define SEC_KEY_4 (1<<3) +#define SEC_ACTIVE_KEY (1<<4) +#define SEC_AUTH_MODE (1<<5) +#define SEC_UNICAST_GROUP (1<<6) +#define SEC_LEVEL (1<<7) +#define SEC_ENABLED (1<<8) +#define SEC_ENCRYPT (1<<9) + +#define SEC_LEVEL_0 0 /* None */ +#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */ +#define SEC_LEVEL_2 2 /* Level 1 + TKIP */ +#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */ +#define SEC_LEVEL_3 4 /* Level 2 + CCMP */ + +#define SEC_ALG_NONE 0 +#define SEC_ALG_WEP 1 +#define SEC_ALG_TKIP 2 +#define SEC_ALG_CCMP 3 + +#define WEP_KEYS 4 +#define WEP_KEY_LEN 13 +#define SCM_KEY_LEN 32 +#define SCM_TEMPORAL_KEY_LENGTH 16 + +struct libipw_security { + u16 active_key:2, enabled:1, unicast_uses_group:1, encrypt:1; + u8 auth_mode; + u8 encode_alg[WEP_KEYS]; + u8 key_sizes[WEP_KEYS]; + u8 keys[WEP_KEYS][SCM_KEY_LEN]; + u8 level; + u16 flags; +} __packed; + +/* + + 802.11 data frame from AP + + ,-------------------------------------------------------------------. +Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | + |------|------|---------|---------|---------|------|---------|------| +Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | + | | tion | (BSSID) | | | ence | data | | + `-------------------------------------------------------------------' + +Total: 28-2340 bytes + +*/ + +#define BEACON_PROBE_SSID_ID_POSITION 12 + +struct libipw_hdr_1addr { + __le16 frame_ctl; + __le16 duration_id; + u8 addr1[ETH_ALEN]; + u8 payload[]; +} __packed; + +struct libipw_hdr_2addr { + __le16 frame_ctl; + __le16 duration_id; + u8 addr1[ETH_ALEN]; + u8 addr2[ETH_ALEN]; + u8 payload[]; +} __packed; + +struct libipw_hdr_3addr { + __le16 frame_ctl; + __le16 duration_id; + u8 addr1[ETH_ALEN]; + u8 addr2[ETH_ALEN]; + u8 addr3[ETH_ALEN]; + __le16 seq_ctl; + u8 payload[]; +} __packed; + +struct libipw_hdr_4addr { + __le16 frame_ctl; + __le16 duration_id; + u8 addr1[ETH_ALEN]; + u8 addr2[ETH_ALEN]; + u8 addr3[ETH_ALEN]; + __le16 seq_ctl; + u8 addr4[ETH_ALEN]; + u8 payload[]; +} __packed; + +struct libipw_hdr_3addrqos { + __le16 frame_ctl; + __le16 duration_id; + u8 addr1[ETH_ALEN]; + u8 addr2[ETH_ALEN]; + u8 addr3[ETH_ALEN]; + __le16 seq_ctl; + u8 payload[0]; + __le16 qos_ctl; +} __packed; + +struct libipw_info_element { + u8 id; + u8 len; + u8 data[]; +} __packed; + +/* + * These are the data types that can make up management packets + * + u16 auth_algorithm; + u16 auth_sequence; + u16 beacon_interval; + u16 capability; + u8 current_ap[ETH_ALEN]; + u16 listen_interval; + struct { + u16 association_id:14, reserved:2; + } __packed; + u32 time_stamp[2]; + u16 reason; + u16 status; +*/ + +struct libipw_auth { + struct libipw_hdr_3addr header; + __le16 algorithm; + __le16 transaction; + __le16 status; + /* challenge */ + u8 variable[]; +} __packed; + +struct libipw_channel_switch { + u8 id; + u8 len; + u8 mode; + u8 channel; + u8 count; +} __packed; + +struct libipw_action { + struct libipw_hdr_3addr header; + u8 category; + u8 action; + union { + struct libipw_action_exchange { + u8 token; + } exchange; + struct libipw_channel_switch channel_switch; + + } format; +} __packed; + +struct libipw_disassoc { + struct libipw_hdr_3addr header; + __le16 reason; +} __packed; + +/* Alias deauth for disassoc */ +#define libipw_deauth libipw_disassoc + +struct libipw_probe_request { + struct libipw_hdr_3addr header; + /* SSID, supported rates */ + u8 variable[]; +} __packed; + +struct libipw_probe_response { + struct libipw_hdr_3addr header; + __le32 time_stamp[2]; + __le16 beacon_interval; + __le16 capability; + /* SSID, supported rates, FH params, DS params, + * CF params, IBSS params, TIM (if beacon), RSN */ + u8 variable[]; +} __packed; + +/* Alias beacon for probe_response */ +#define libipw_beacon libipw_probe_response + +struct libipw_assoc_request { + struct libipw_hdr_3addr header; + __le16 capability; + __le16 listen_interval; + /* SSID, supported rates, RSN */ + u8 variable[]; +} __packed; + +struct libipw_reassoc_request { + struct libipw_hdr_3addr header; + __le16 capability; + __le16 listen_interval; + u8 current_ap[ETH_ALEN]; + u8 variable[]; +} __packed; + +struct libipw_assoc_response { + struct libipw_hdr_3addr header; + __le16 capability; + __le16 status; + __le16 aid; + /* supported rates */ + u8 variable[]; +} __packed; + +struct libipw_txb { + u8 nr_frags; + u8 encrypted; + u8 rts_included; + u8 reserved; + u16 frag_size; + u16 payload_size; + struct sk_buff *fragments[]; +}; + +/* SWEEP TABLE ENTRIES NUMBER */ +#define MAX_SWEEP_TAB_ENTRIES 42 +#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 +/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs + * only use 8, and then use extended rates for the remaining supported + * rates. Other APs, however, stick all of their supported rates on the + * main rates information element... */ +#define MAX_RATES_LENGTH ((u8)12) +#define MAX_RATES_EX_LENGTH ((u8)16) +#define MAX_NETWORK_COUNT 128 + +#define CRC_LENGTH 4U + +#define MAX_WPA_IE_LEN 64 + +#define NETWORK_HAS_OFDM (1<<1) +#define NETWORK_HAS_CCK (1<<2) + +/* QoS structure */ +#define NETWORK_HAS_QOS_PARAMETERS (1<<3) +#define NETWORK_HAS_QOS_INFORMATION (1<<4) +#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \ + NETWORK_HAS_QOS_INFORMATION) + +/* 802.11h */ +#define NETWORK_HAS_POWER_CONSTRAINT (1<<5) +#define NETWORK_HAS_CSA (1<<6) +#define NETWORK_HAS_QUIET (1<<7) +#define NETWORK_HAS_IBSS_DFS (1<<8) +#define NETWORK_HAS_TPC_REPORT (1<<9) + +#define NETWORK_HAS_ERP_VALUE (1<<10) + +#define QOS_QUEUE_NUM 4 +#define QOS_OUI_LEN 3 +#define QOS_OUI_TYPE 2 +#define QOS_ELEMENT_ID 221 +#define QOS_OUI_INFO_SUB_TYPE 0 +#define QOS_OUI_PARAM_SUB_TYPE 1 +#define QOS_VERSION_1 1 +#define QOS_AIFSN_MIN_VALUE 2 + +struct libipw_qos_information_element { + u8 elementID; + u8 length; + u8 qui[QOS_OUI_LEN]; + u8 qui_type; + u8 qui_subtype; + u8 version; + u8 ac_info; +} __packed; + +struct libipw_qos_ac_parameter { + u8 aci_aifsn; + u8 ecw_min_max; + __le16 tx_op_limit; +} __packed; + +struct libipw_qos_parameter_info { + struct libipw_qos_information_element info_element; + u8 reserved; + struct libipw_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM]; +} __packed; + +struct libipw_qos_parameters { + __le16 cw_min[QOS_QUEUE_NUM]; + __le16 cw_max[QOS_QUEUE_NUM]; + u8 aifs[QOS_QUEUE_NUM]; + u8 flag[QOS_QUEUE_NUM]; + __le16 tx_op_limit[QOS_QUEUE_NUM]; +} __packed; + +struct libipw_qos_data { + struct libipw_qos_parameters parameters; + int active; + int supported; + u8 param_count; + u8 old_param_count; +}; + +struct libipw_tim_parameters { + u8 tim_count; + u8 tim_period; +} __packed; + +/*******************************************************/ + +struct libipw_tpc_report { + u8 transmit_power; + u8 link_margin; +} __packed; + +struct libipw_channel_map { + u8 channel; + u8 map; +} __packed; + +struct libipw_ibss_dfs { + struct libipw_info_element ie; + u8 owner[ETH_ALEN]; + u8 recovery_interval; + struct libipw_channel_map channel_map[]; +}; + +struct libipw_csa { + u8 mode; + u8 channel; + u8 count; +} __packed; + +struct libipw_quiet { + u8 count; + u8 period; + u8 duration; + u8 offset; +} __packed; + +struct libipw_network { + /* These entries are used to identify a unique network */ + u8 bssid[ETH_ALEN]; + u8 channel; + /* Ensure null-terminated for any debug msgs */ + u8 ssid[IW_ESSID_MAX_SIZE + 1]; + u8 ssid_len; + + struct libipw_qos_data qos_data; + + /* These are network statistics */ + struct libipw_rx_stats stats; + u16 capability; + u8 rates[MAX_RATES_LENGTH]; + u8 rates_len; + u8 rates_ex[MAX_RATES_EX_LENGTH]; + u8 rates_ex_len; + unsigned long last_scanned; + u8 mode; + u32 flags; + u32 last_associate; + u32 time_stamp[2]; + u16 beacon_interval; + u16 listen_interval; + u16 atim_window; + u8 erp_value; + u8 wpa_ie[MAX_WPA_IE_LEN]; + size_t wpa_ie_len; + u8 rsn_ie[MAX_WPA_IE_LEN]; + size_t rsn_ie_len; + struct libipw_tim_parameters tim; + + /* 802.11h info */ + + /* Power Constraint - mandatory if spctrm mgmt required */ + u8 power_constraint; + + /* TPC Report - mandatory if spctrm mgmt required */ + struct libipw_tpc_report tpc_report; + + /* Channel Switch Announcement - optional if spctrm mgmt required */ + struct libipw_csa csa; + + /* Quiet - optional if spctrm mgmt required */ + struct libipw_quiet quiet; + + struct list_head list; +}; + +enum libipw_state { + LIBIPW_UNINITIALIZED = 0, + LIBIPW_INITIALIZED, + LIBIPW_ASSOCIATING, + LIBIPW_ASSOCIATED, + LIBIPW_AUTHENTICATING, + LIBIPW_AUTHENTICATED, + LIBIPW_SHUTDOWN +}; + +#define DEFAULT_MAX_SCAN_AGE (15 * HZ) +#define DEFAULT_FTS 2346 + +#define CFG_LIBIPW_RESERVE_FCS (1<<0) +#define CFG_LIBIPW_COMPUTE_FCS (1<<1) +#define CFG_LIBIPW_RTS (1<<2) + +#define LIBIPW_24GHZ_MIN_CHANNEL 1 +#define LIBIPW_24GHZ_MAX_CHANNEL 14 +#define LIBIPW_24GHZ_CHANNELS (LIBIPW_24GHZ_MAX_CHANNEL - \ + LIBIPW_24GHZ_MIN_CHANNEL + 1) + +#define LIBIPW_52GHZ_MIN_CHANNEL 34 +#define LIBIPW_52GHZ_MAX_CHANNEL 165 +#define LIBIPW_52GHZ_CHANNELS (LIBIPW_52GHZ_MAX_CHANNEL - \ + LIBIPW_52GHZ_MIN_CHANNEL + 1) + +enum { + LIBIPW_CH_PASSIVE_ONLY = (1 << 0), + LIBIPW_CH_80211H_RULES = (1 << 1), + LIBIPW_CH_B_ONLY = (1 << 2), + LIBIPW_CH_NO_IBSS = (1 << 3), + LIBIPW_CH_UNIFORM_SPREADING = (1 << 4), + LIBIPW_CH_RADAR_DETECT = (1 << 5), + LIBIPW_CH_INVALID = (1 << 6), +}; + +struct libipw_channel { + u32 freq; /* in MHz */ + u8 channel; + u8 flags; + u8 max_power; /* in dBm */ +}; + +struct libipw_geo { + u8 name[4]; + u8 bg_channels; + u8 a_channels; + struct libipw_channel bg[LIBIPW_24GHZ_CHANNELS]; + struct libipw_channel a[LIBIPW_52GHZ_CHANNELS]; +}; + +struct libipw_device { + struct net_device *dev; + struct wireless_dev wdev; + struct libipw_security sec; + + /* Bookkeeping structures */ + struct libipw_stats ieee_stats; + + struct libipw_geo geo; + struct ieee80211_supported_band bg_band; + struct ieee80211_supported_band a_band; + + /* Probe / Beacon management */ + struct list_head network_free_list; + struct list_head network_list; + struct libipw_network *networks[MAX_NETWORK_COUNT]; + int scans; + int scan_age; + + int iw_mode; /* operating mode (IW_MODE_*) */ + struct iw_spy_data spy_data; /* iwspy support */ + + spinlock_t lock; + + int tx_headroom; /* Set to size of any additional room needed at front + * of allocated Tx SKBs */ + u32 config; + + /* WEP and other encryption related settings at the device level */ + int open_wep; /* Set to 1 to allow unencrypted frames */ + + /* If the host performs {en,de}cryption, then set to 1 */ + int host_encrypt; + int host_encrypt_msdu; + int host_decrypt; + /* host performs multicast decryption */ + int host_mc_decrypt; + + /* host should strip IV and ICV from protected frames */ + /* meaningful only when hardware decryption is being used */ + int host_strip_iv_icv; + + int host_open_frag; + int ieee802_1x; /* is IEEE 802.1X used */ + + /* WPA data */ + int wpa_enabled; + int drop_unencrypted; + int privacy_invoked; + size_t wpa_ie_len; + u8 *wpa_ie; + + struct lib80211_crypt_info crypt_info; + + int bcrx_sta_key; /* use individual keys to override default keys even + * with RX of broad/multicast frames */ + + /* Fragmentation structures */ + struct libipw_frag_entry frag_cache[LIBIPW_FRAG_CACHE_LEN]; + unsigned int frag_next_idx; + u16 fts; /* Fragmentation Threshold */ + u16 rts; /* RTS threshold */ + + /* Association info */ + u8 bssid[ETH_ALEN]; + + enum libipw_state state; + + int mode; /* A, B, G */ + int modulation; /* CCK, OFDM */ + int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */ + int abg_true; /* ABG flag */ + + int perfect_rssi; + int worst_rssi; + + u16 prev_seq_ctl; /* used to drop duplicate frames */ + + /* Callback functions */ + void (*set_security) (struct net_device * dev, + struct libipw_security * sec); + netdev_tx_t (*hard_start_xmit) (struct libipw_txb * txb, + struct net_device * dev, int pri); + int (*is_queue_full) (struct net_device * dev, int pri); + + int (*handle_management) (struct net_device * dev, + struct libipw_network * network, u16 type); + int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb); + + /* Typical STA methods */ + int (*handle_auth) (struct net_device * dev, + struct libipw_auth * auth); + int (*handle_deauth) (struct net_device * dev, + struct libipw_deauth * auth); + int (*handle_action) (struct net_device * dev, + struct libipw_action * action, + struct libipw_rx_stats * stats); + int (*handle_disassoc) (struct net_device * dev, + struct libipw_disassoc * assoc); + int (*handle_beacon) (struct net_device * dev, + struct libipw_beacon * beacon, + struct libipw_network * network); + int (*handle_probe_response) (struct net_device * dev, + struct libipw_probe_response * resp, + struct libipw_network * network); + int (*handle_probe_request) (struct net_device * dev, + struct libipw_probe_request * req, + struct libipw_rx_stats * stats); + int (*handle_assoc_response) (struct net_device * dev, + struct libipw_assoc_response * resp, + struct libipw_network * network); + + /* Typical AP methods */ + int (*handle_assoc_request) (struct net_device * dev); + int (*handle_reassoc_request) (struct net_device * dev, + struct libipw_reassoc_request * req); + + /* This must be the last item so that it points to the data + * allocated beyond this structure by alloc_libipw */ + u8 priv[]; +}; + +#define IEEE_A (1<<0) +#define IEEE_B (1<<1) +#define IEEE_G (1<<2) +#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) + +static inline void *libipw_priv(struct net_device *dev) +{ + return ((struct libipw_device *)netdev_priv(dev))->priv; +} + +static inline int libipw_is_valid_mode(struct libipw_device *ieee, + int mode) +{ + /* + * It is possible for both access points and our device to support + * combinations of modes, so as long as there is one valid combination + * of ap/device supported modes, then return success + * + */ + if ((mode & IEEE_A) && + (ieee->modulation & LIBIPW_OFDM_MODULATION) && + (ieee->freq_band & LIBIPW_52GHZ_BAND)) + return 1; + + if ((mode & IEEE_G) && + (ieee->modulation & LIBIPW_OFDM_MODULATION) && + (ieee->freq_band & LIBIPW_24GHZ_BAND)) + return 1; + + if ((mode & IEEE_B) && + (ieee->modulation & LIBIPW_CCK_MODULATION) && + (ieee->freq_band & LIBIPW_24GHZ_BAND)) + return 1; + + return 0; +} + +static inline int libipw_get_hdrlen(u16 fc) +{ + int hdrlen = LIBIPW_3ADDR_LEN; + u16 stype = WLAN_FC_GET_STYPE(fc); + + switch (WLAN_FC_GET_TYPE(fc)) { + case IEEE80211_FTYPE_DATA: + if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) + hdrlen = LIBIPW_4ADDR_LEN; + if (stype & IEEE80211_STYPE_QOS_DATA) + hdrlen += 2; + break; + case IEEE80211_FTYPE_CTL: + switch (WLAN_FC_GET_STYPE(fc)) { + case IEEE80211_STYPE_CTS: + case IEEE80211_STYPE_ACK: + hdrlen = LIBIPW_1ADDR_LEN; + break; + default: + hdrlen = LIBIPW_2ADDR_LEN; + break; + } + break; + } + + return hdrlen; +} + +static inline u8 *libipw_get_payload(struct ieee80211_hdr *hdr) +{ + switch (libipw_get_hdrlen(le16_to_cpu(hdr->frame_control))) { + case LIBIPW_1ADDR_LEN: + return ((struct libipw_hdr_1addr *)hdr)->payload; + case LIBIPW_2ADDR_LEN: + return ((struct libipw_hdr_2addr *)hdr)->payload; + case LIBIPW_3ADDR_LEN: + return ((struct libipw_hdr_3addr *)hdr)->payload; + case LIBIPW_4ADDR_LEN: + return ((struct libipw_hdr_4addr *)hdr)->payload; + } + return NULL; +} + +static inline int libipw_is_ofdm_rate(u8 rate) +{ + switch (rate & ~LIBIPW_BASIC_RATE_MASK) { + case LIBIPW_OFDM_RATE_6MB: + case LIBIPW_OFDM_RATE_9MB: + case LIBIPW_OFDM_RATE_12MB: + case LIBIPW_OFDM_RATE_18MB: + case LIBIPW_OFDM_RATE_24MB: + case LIBIPW_OFDM_RATE_36MB: + case LIBIPW_OFDM_RATE_48MB: + case LIBIPW_OFDM_RATE_54MB: + return 1; + } + return 0; +} + +static inline int libipw_is_cck_rate(u8 rate) +{ + switch (rate & ~LIBIPW_BASIC_RATE_MASK) { + case LIBIPW_CCK_RATE_1MB: + case LIBIPW_CCK_RATE_2MB: + case LIBIPW_CCK_RATE_5MB: + case LIBIPW_CCK_RATE_11MB: + return 1; + } + return 0; +} + +/* libipw.c */ +void free_libipw(struct net_device *dev, int monitor); +struct net_device *alloc_libipw(int sizeof_priv, int monitor); + +void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs); + +int libipw_set_encryption(struct libipw_device *ieee); + +/* libipw_tx.c */ +netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev); +void libipw_txb_free(struct libipw_txb *); + +/* libipw_rx.c */ +void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb, + struct libipw_rx_stats *stats); +int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb, + struct libipw_rx_stats *rx_stats); +/* make sure to set stats->len */ +void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header, + struct libipw_rx_stats *stats); + +/* libipw_geo.c */ +const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee); +void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo); + +int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel); +int libipw_channel_to_index(struct libipw_device *ieee, u8 channel); +u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq); +u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel); +const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee, + u8 channel); +u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel); + +/* libipw_wx.c */ +int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info, + union iwreq_data *wrqu, char *key); +int libipw_wx_set_encode(struct libipw_device *ieee, + struct iw_request_info *info, union iwreq_data *wrqu, + char *key); +int libipw_wx_get_encode(struct libipw_device *ieee, + struct iw_request_info *info, union iwreq_data *wrqu, + char *key); +int libipw_wx_set_encodeext(struct libipw_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra); +int libipw_wx_get_encodeext(struct libipw_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra); + +static inline void libipw_increment_scans(struct libipw_device *ieee) +{ + ieee->scans++; +} + +static inline int libipw_get_scans(struct libipw_device *ieee) +{ + return ieee->scans; +} + +#endif /* LIBIPW_H */ diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_geo.c b/drivers/net/wireless/intel/ipw2x00/libipw_geo.c new file mode 100644 index 000000000..f2ae3f8f2 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/libipw_geo.c @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: GPL-2.0-only +/****************************************************************************** + + Copyright(c) 2005 Intel Corporation. All rights reserved. + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/if_arp.h> +#include <linux/in6.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/proc_fs.h> +#include <linux/skbuff.h> +#include <linux/tcp.h> +#include <linux/types.h> +#include <linux/wireless.h> +#include <linux/etherdevice.h> +#include <linux/uaccess.h> + +#include "libipw.h" + +int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel) +{ + int i; + + /* Driver needs to initialize the geography map before using + * these helper functions */ + if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) + return 0; + + if (ieee->freq_band & LIBIPW_24GHZ_BAND) + for (i = 0; i < ieee->geo.bg_channels; i++) + /* NOTE: If G mode is currently supported but + * this is a B only channel, we don't see it + * as valid. */ + if ((ieee->geo.bg[i].channel == channel) && + !(ieee->geo.bg[i].flags & LIBIPW_CH_INVALID) && + (!(ieee->mode & IEEE_G) || + !(ieee->geo.bg[i].flags & LIBIPW_CH_B_ONLY))) + return LIBIPW_24GHZ_BAND; + + if (ieee->freq_band & LIBIPW_52GHZ_BAND) + for (i = 0; i < ieee->geo.a_channels; i++) + if ((ieee->geo.a[i].channel == channel) && + !(ieee->geo.a[i].flags & LIBIPW_CH_INVALID)) + return LIBIPW_52GHZ_BAND; + + return 0; +} + +int libipw_channel_to_index(struct libipw_device *ieee, u8 channel) +{ + int i; + + /* Driver needs to initialize the geography map before using + * these helper functions */ + if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) + return -1; + + if (ieee->freq_band & LIBIPW_24GHZ_BAND) + for (i = 0; i < ieee->geo.bg_channels; i++) + if (ieee->geo.bg[i].channel == channel) + return i; + + if (ieee->freq_band & LIBIPW_52GHZ_BAND) + for (i = 0; i < ieee->geo.a_channels; i++) + if (ieee->geo.a[i].channel == channel) + return i; + + return -1; +} + +u32 libipw_channel_to_freq(struct libipw_device * ieee, u8 channel) +{ + const struct libipw_channel * ch; + + /* Driver needs to initialize the geography map before using + * these helper functions */ + if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) + return 0; + + ch = libipw_get_channel(ieee, channel); + if (!ch->channel) + return 0; + return ch->freq; +} + +u8 libipw_freq_to_channel(struct libipw_device * ieee, u32 freq) +{ + int i; + + /* Driver needs to initialize the geography map before using + * these helper functions */ + if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0) + return 0; + + freq /= 100000; + + if (ieee->freq_band & LIBIPW_24GHZ_BAND) + for (i = 0; i < ieee->geo.bg_channels; i++) + if (ieee->geo.bg[i].freq == freq) + return ieee->geo.bg[i].channel; + + if (ieee->freq_band & LIBIPW_52GHZ_BAND) + for (i = 0; i < ieee->geo.a_channels; i++) + if (ieee->geo.a[i].freq == freq) + return ieee->geo.a[i].channel; + + return 0; +} + +void libipw_set_geo(struct libipw_device *ieee, + const struct libipw_geo *geo) +{ + memcpy(ieee->geo.name, geo->name, 3); + ieee->geo.name[3] = '\0'; + ieee->geo.bg_channels = geo->bg_channels; + ieee->geo.a_channels = geo->a_channels; + memcpy(ieee->geo.bg, geo->bg, geo->bg_channels * + sizeof(struct libipw_channel)); + memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels * + sizeof(struct libipw_channel)); +} + +const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee) +{ + return &ieee->geo; +} + +u8 libipw_get_channel_flags(struct libipw_device * ieee, u8 channel) +{ + int index = libipw_channel_to_index(ieee, channel); + + if (index == -1) + return LIBIPW_CH_INVALID; + + if (channel <= LIBIPW_24GHZ_CHANNELS) + return ieee->geo.bg[index].flags; + + return ieee->geo.a[index].flags; +} + +static const struct libipw_channel bad_channel = { + .channel = 0, + .flags = LIBIPW_CH_INVALID, + .max_power = 0, +}; + +const struct libipw_channel *libipw_get_channel(struct libipw_device + *ieee, u8 channel) +{ + int index = libipw_channel_to_index(ieee, channel); + + if (index == -1) + return &bad_channel; + + if (channel <= LIBIPW_24GHZ_CHANNELS) + return &ieee->geo.bg[index]; + + return &ieee->geo.a[index]; +} + +EXPORT_SYMBOL(libipw_get_channel); +EXPORT_SYMBOL(libipw_get_channel_flags); +EXPORT_SYMBOL(libipw_is_valid_channel); +EXPORT_SYMBOL(libipw_freq_to_channel); +EXPORT_SYMBOL(libipw_channel_to_freq); +EXPORT_SYMBOL(libipw_channel_to_index); +EXPORT_SYMBOL(libipw_set_geo); +EXPORT_SYMBOL(libipw_get_geo); diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_module.c b/drivers/net/wireless/intel/ipw2x00/libipw_module.c new file mode 100644 index 000000000..43bab92a4 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/libipw_module.c @@ -0,0 +1,297 @@ +// SPDX-License-Identifier: GPL-2.0-only +/******************************************************************************* + + Copyright(c) 2004-2005 Intel Corporation. All rights reserved. + + Portions of this file are based on the WEP enablement code provided by the + Host AP project hostap-drivers v0.1.3 + Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + <j@w1.fi> + Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/if_arp.h> +#include <linux/in6.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/proc_fs.h> +#include <linux/skbuff.h> +#include <linux/slab.h> +#include <linux/tcp.h> +#include <linux/types.h> +#include <linux/wireless.h> +#include <linux/etherdevice.h> +#include <linux/uaccess.h> +#include <net/net_namespace.h> +#include <net/arp.h> + +#include "libipw.h" + +#define DRV_DESCRIPTION "802.11 data/management/control stack" +#define DRV_NAME "libipw" +#define DRV_PROCNAME "ieee80211" +#define DRV_VERSION LIBIPW_VERSION +#define DRV_COPYRIGHT "Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>" + +MODULE_VERSION(DRV_VERSION); +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_AUTHOR(DRV_COPYRIGHT); +MODULE_LICENSE("GPL"); + +static struct cfg80211_ops libipw_config_ops = { }; +static void *libipw_wiphy_privid = &libipw_wiphy_privid; + +static int libipw_networks_allocate(struct libipw_device *ieee) +{ + int i, j; + + for (i = 0; i < MAX_NETWORK_COUNT; i++) { + ieee->networks[i] = kzalloc(sizeof(struct libipw_network), + GFP_KERNEL); + if (!ieee->networks[i]) { + LIBIPW_ERROR("Out of memory allocating beacons\n"); + for (j = 0; j < i; j++) + kfree(ieee->networks[j]); + return -ENOMEM; + } + } + + return 0; +} + +static inline void libipw_networks_free(struct libipw_device *ieee) +{ + int i; + + for (i = 0; i < MAX_NETWORK_COUNT; i++) + kfree(ieee->networks[i]); +} + +void libipw_networks_age(struct libipw_device *ieee, + unsigned long age_secs) +{ + struct libipw_network *network = NULL; + unsigned long flags; + unsigned long age_jiffies = msecs_to_jiffies(age_secs * MSEC_PER_SEC); + + spin_lock_irqsave(&ieee->lock, flags); + list_for_each_entry(network, &ieee->network_list, list) { + network->last_scanned -= age_jiffies; + } + spin_unlock_irqrestore(&ieee->lock, flags); +} +EXPORT_SYMBOL(libipw_networks_age); + +static void libipw_networks_initialize(struct libipw_device *ieee) +{ + int i; + + INIT_LIST_HEAD(&ieee->network_free_list); + INIT_LIST_HEAD(&ieee->network_list); + for (i = 0; i < MAX_NETWORK_COUNT; i++) + list_add_tail(&ieee->networks[i]->list, + &ieee->network_free_list); +} + +struct net_device *alloc_libipw(int sizeof_priv, int monitor) +{ + struct libipw_device *ieee; + struct net_device *dev; + int err; + + LIBIPW_DEBUG_INFO("Initializing...\n"); + + dev = alloc_etherdev(sizeof(struct libipw_device) + sizeof_priv); + if (!dev) + goto failed; + + ieee = netdev_priv(dev); + + ieee->dev = dev; + + if (!monitor) { + ieee->wdev.wiphy = wiphy_new(&libipw_config_ops, 0); + if (!ieee->wdev.wiphy) { + LIBIPW_ERROR("Unable to allocate wiphy.\n"); + goto failed_free_netdev; + } + + ieee->dev->ieee80211_ptr = &ieee->wdev; + ieee->wdev.iftype = NL80211_IFTYPE_STATION; + + /* Fill-out wiphy structure bits we know... Not enough info + here to call set_wiphy_dev or set MAC address or channel info + -- have to do that in ->ndo_init... */ + ieee->wdev.wiphy->privid = libipw_wiphy_privid; + + ieee->wdev.wiphy->max_scan_ssids = 1; + ieee->wdev.wiphy->max_scan_ie_len = 0; + ieee->wdev.wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) + | BIT(NL80211_IFTYPE_ADHOC); + } + + err = libipw_networks_allocate(ieee); + if (err) { + LIBIPW_ERROR("Unable to allocate beacon storage: %d\n", err); + goto failed_free_wiphy; + } + libipw_networks_initialize(ieee); + + /* Default fragmentation threshold is maximum payload size */ + ieee->fts = DEFAULT_FTS; + ieee->rts = DEFAULT_FTS; + ieee->scan_age = DEFAULT_MAX_SCAN_AGE; + ieee->open_wep = 1; + + /* Default to enabling full open WEP with host based encrypt/decrypt */ + ieee->host_encrypt = 1; + ieee->host_decrypt = 1; + ieee->host_mc_decrypt = 1; + + /* Host fragmentation in Open mode. Default is enabled. + * Note: host fragmentation is always enabled if host encryption + * is enabled. For cards can do hardware encryption, they must do + * hardware fragmentation as well. So we don't need a variable + * like host_enc_frag. */ + ieee->host_open_frag = 1; + ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ + + spin_lock_init(&ieee->lock); + + lib80211_crypt_info_init(&ieee->crypt_info, dev->name, &ieee->lock); + + ieee->wpa_enabled = 0; + ieee->drop_unencrypted = 0; + ieee->privacy_invoked = 0; + + return dev; + +failed_free_wiphy: + if (!monitor) + wiphy_free(ieee->wdev.wiphy); +failed_free_netdev: + free_netdev(dev); +failed: + return NULL; +} +EXPORT_SYMBOL(alloc_libipw); + +void free_libipw(struct net_device *dev, int monitor) +{ + struct libipw_device *ieee = netdev_priv(dev); + + lib80211_crypt_info_free(&ieee->crypt_info); + + libipw_networks_free(ieee); + + /* free cfg80211 resources */ + if (!monitor) + wiphy_free(ieee->wdev.wiphy); + + free_netdev(dev); +} +EXPORT_SYMBOL(free_libipw); + +#ifdef CONFIG_LIBIPW_DEBUG + +static int debug = 0; +u32 libipw_debug_level = 0; +EXPORT_SYMBOL_GPL(libipw_debug_level); +static struct proc_dir_entry *libipw_proc = NULL; + +static int debug_level_proc_show(struct seq_file *m, void *v) +{ + seq_printf(m, "0x%08X\n", libipw_debug_level); + return 0; +} + +static int debug_level_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, debug_level_proc_show, NULL); +} + +static ssize_t debug_level_proc_write(struct file *file, + const char __user *buffer, size_t count, loff_t *pos) +{ + char buf[] = "0x00000000\n"; + size_t len = min(sizeof(buf) - 1, count); + unsigned long val; + + if (copy_from_user(buf, buffer, len)) + return count; + buf[len] = 0; + if (sscanf(buf, "%li", &val) != 1) + printk(KERN_INFO DRV_NAME + ": %s is not in hex or decimal form.\n", buf); + else + libipw_debug_level = val; + + return strnlen(buf, len); +} + +static const struct proc_ops debug_level_proc_ops = { + .proc_open = debug_level_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, + .proc_write = debug_level_proc_write, +}; +#endif /* CONFIG_LIBIPW_DEBUG */ + +static int __init libipw_init(void) +{ +#ifdef CONFIG_LIBIPW_DEBUG + struct proc_dir_entry *e; + + libipw_debug_level = debug; + libipw_proc = proc_mkdir(DRV_PROCNAME, init_net.proc_net); + if (libipw_proc == NULL) { + LIBIPW_ERROR("Unable to create " DRV_PROCNAME + " proc directory\n"); + return -EIO; + } + e = proc_create("debug_level", 0644, libipw_proc, + &debug_level_proc_ops); + if (!e) { + remove_proc_entry(DRV_PROCNAME, init_net.proc_net); + libipw_proc = NULL; + return -EIO; + } +#endif /* CONFIG_LIBIPW_DEBUG */ + + printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); + printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); + + return 0; +} + +static void __exit libipw_exit(void) +{ +#ifdef CONFIG_LIBIPW_DEBUG + if (libipw_proc) { + remove_proc_entry("debug_level", libipw_proc); + remove_proc_entry(DRV_PROCNAME, init_net.proc_net); + libipw_proc = NULL; + } +#endif /* CONFIG_LIBIPW_DEBUG */ +} + +#ifdef CONFIG_LIBIPW_DEBUG +#include <linux/moduleparam.h> +module_param(debug, int, 0444); +MODULE_PARM_DESC(debug, "debug output mask"); +#endif /* CONFIG_LIBIPW_DEBUG */ + +module_exit(libipw_exit); +module_init(libipw_init); diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_rx.c b/drivers/net/wireless/intel/ipw2x00/libipw_rx.c new file mode 100644 index 000000000..48d6870bb --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/libipw_rx.c @@ -0,0 +1,1737 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Original code based Host AP (software wireless LAN access point) driver + * for Intersil Prism2/2.5/3 - hostap.o module, common routines + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * <j@w1.fi> + * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> + * Copyright (c) 2004-2005, Intel Corporation + */ + +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/if_arp.h> +#include <linux/in6.h> +#include <linux/gfp.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/proc_fs.h> +#include <linux/skbuff.h> +#include <linux/tcp.h> +#include <linux/types.h> +#include <linux/wireless.h> +#include <linux/etherdevice.h> +#include <linux/uaccess.h> +#include <linux/ctype.h> + +#include <net/lib80211.h> + +#include "libipw.h" + +static void libipw_monitor_rx(struct libipw_device *ieee, + struct sk_buff *skb, + struct libipw_rx_stats *rx_stats) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + u16 fc = le16_to_cpu(hdr->frame_control); + + skb->dev = ieee->dev; + skb_reset_mac_header(skb); + skb_pull(skb, libipw_get_hdrlen(fc)); + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = htons(ETH_P_80211_RAW); + memset(skb->cb, 0, sizeof(skb->cb)); + netif_rx(skb); +} + +/* Called only as a tasklet (software IRQ) */ +static struct libipw_frag_entry *libipw_frag_cache_find(struct + libipw_device + *ieee, + unsigned int seq, + unsigned int frag, + u8 * src, + u8 * dst) +{ + struct libipw_frag_entry *entry; + int i; + + for (i = 0; i < LIBIPW_FRAG_CACHE_LEN; i++) { + entry = &ieee->frag_cache[i]; + if (entry->skb != NULL && + time_after(jiffies, entry->first_frag_time + 2 * HZ)) { + LIBIPW_DEBUG_FRAG("expiring fragment cache entry " + "seq=%u last_frag=%u\n", + entry->seq, entry->last_frag); + dev_kfree_skb_any(entry->skb); + entry->skb = NULL; + } + + if (entry->skb != NULL && entry->seq == seq && + (entry->last_frag + 1 == frag || frag == -1) && + ether_addr_equal(entry->src_addr, src) && + ether_addr_equal(entry->dst_addr, dst)) + return entry; + } + + return NULL; +} + +/* Called only as a tasklet (software IRQ) */ +static struct sk_buff *libipw_frag_cache_get(struct libipw_device *ieee, + struct libipw_hdr_4addr *hdr) +{ + struct sk_buff *skb = NULL; + u16 sc; + unsigned int frag, seq; + struct libipw_frag_entry *entry; + + sc = le16_to_cpu(hdr->seq_ctl); + frag = WLAN_GET_SEQ_FRAG(sc); + seq = WLAN_GET_SEQ_SEQ(sc); + + if (frag == 0) { + /* Reserve enough space to fit maximum frame length */ + skb = dev_alloc_skb(ieee->dev->mtu + + sizeof(struct libipw_hdr_4addr) + + 8 /* LLC */ + + 2 /* alignment */ + + 8 /* WEP */ + ETH_ALEN /* WDS */ ); + if (skb == NULL) + return NULL; + + entry = &ieee->frag_cache[ieee->frag_next_idx]; + ieee->frag_next_idx++; + if (ieee->frag_next_idx >= LIBIPW_FRAG_CACHE_LEN) + ieee->frag_next_idx = 0; + + if (entry->skb != NULL) + dev_kfree_skb_any(entry->skb); + + entry->first_frag_time = jiffies; + entry->seq = seq; + entry->last_frag = frag; + entry->skb = skb; + memcpy(entry->src_addr, hdr->addr2, ETH_ALEN); + memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN); + } else { + /* received a fragment of a frame for which the head fragment + * should have already been received */ + entry = libipw_frag_cache_find(ieee, seq, frag, hdr->addr2, + hdr->addr1); + if (entry != NULL) { + entry->last_frag = frag; + skb = entry->skb; + } + } + + return skb; +} + +/* Called only as a tasklet (software IRQ) */ +static int libipw_frag_cache_invalidate(struct libipw_device *ieee, + struct libipw_hdr_4addr *hdr) +{ + u16 sc; + unsigned int seq; + struct libipw_frag_entry *entry; + + sc = le16_to_cpu(hdr->seq_ctl); + seq = WLAN_GET_SEQ_SEQ(sc); + + entry = libipw_frag_cache_find(ieee, seq, -1, hdr->addr2, + hdr->addr1); + + if (entry == NULL) { + LIBIPW_DEBUG_FRAG("could not invalidate fragment cache " + "entry (seq=%u)\n", seq); + return -1; + } + + entry->skb = NULL; + return 0; +} + +#ifdef NOT_YET +/* libipw_rx_frame_mgtmt + * + * Responsible for handling management control frames + * + * Called by libipw_rx */ +static int +libipw_rx_frame_mgmt(struct libipw_device *ieee, struct sk_buff *skb, + struct libipw_rx_stats *rx_stats, u16 type, + u16 stype) +{ + if (ieee->iw_mode == IW_MODE_MASTER) { + printk(KERN_DEBUG "%s: Master mode not yet supported.\n", + ieee->dev->name); + return 0; +/* + hostap_update_sta_ps(ieee, (struct hostap_libipw_hdr_4addr *) + skb->data);*/ + } + + if (ieee->hostapd && type == WLAN_FC_TYPE_MGMT) { + if (stype == WLAN_FC_STYPE_BEACON && + ieee->iw_mode == IW_MODE_MASTER) { + struct sk_buff *skb2; + /* Process beacon frames also in kernel driver to + * update STA(AP) table statistics */ + skb2 = skb_clone(skb, GFP_ATOMIC); + if (skb2) + hostap_rx(skb2->dev, skb2, rx_stats); + } + + /* send management frames to the user space daemon for + * processing */ + ieee->apdevstats.rx_packets++; + ieee->apdevstats.rx_bytes += skb->len; + prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT); + return 0; + } + + if (ieee->iw_mode == IW_MODE_MASTER) { + if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) { + printk(KERN_DEBUG "%s: unknown management frame " + "(type=0x%02x, stype=0x%02x) dropped\n", + skb->dev->name, type, stype); + return -1; + } + + hostap_rx(skb->dev, skb, rx_stats); + return 0; + } + + printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame " + "received in non-Host AP mode\n", skb->dev->name); + return -1; +} +#endif + +/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ +/* Ethernet-II snap header (RFC1042 for most EtherTypes) */ +static unsigned char libipw_rfc1042_header[] = + { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; + +/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ +static unsigned char libipw_bridge_tunnel_header[] = + { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; +/* No encapsulation header if EtherType < 0x600 (=length) */ + +/* Called by libipw_rx_frame_decrypt */ +static int libipw_is_eapol_frame(struct libipw_device *ieee, + struct sk_buff *skb) +{ + struct net_device *dev = ieee->dev; + u16 fc, ethertype; + struct libipw_hdr_3addr *hdr; + u8 *pos; + + if (skb->len < 24) + return 0; + + hdr = (struct libipw_hdr_3addr *)skb->data; + fc = le16_to_cpu(hdr->frame_ctl); + + /* check that the frame is unicast frame to us */ + if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_TODS && + ether_addr_equal(hdr->addr1, dev->dev_addr) && + ether_addr_equal(hdr->addr3, dev->dev_addr)) { + /* ToDS frame with own addr BSSID and DA */ + } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_FROMDS && + ether_addr_equal(hdr->addr1, dev->dev_addr)) { + /* FromDS frame with own addr as DA */ + } else + return 0; + + if (skb->len < 24 + 8) + return 0; + + /* check for port access entity Ethernet type */ + pos = skb->data + 24; + ethertype = (pos[6] << 8) | pos[7]; + if (ethertype == ETH_P_PAE) + return 1; + + return 0; +} + +/* Called only as a tasklet (software IRQ), by libipw_rx */ +static int +libipw_rx_frame_decrypt(struct libipw_device *ieee, struct sk_buff *skb, + struct lib80211_crypt_data *crypt) +{ + struct libipw_hdr_3addr *hdr; + int res, hdrlen; + + if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL) + return 0; + + hdr = (struct libipw_hdr_3addr *)skb->data; + hdrlen = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); + + atomic_inc(&crypt->refcnt); + res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv); + atomic_dec(&crypt->refcnt); + if (res < 0) { + LIBIPW_DEBUG_DROP("decryption failed (SA=%pM) res=%d\n", + hdr->addr2, res); + if (res == -2) + LIBIPW_DEBUG_DROP("Decryption failed ICV " + "mismatch (key %d)\n", + skb->data[hdrlen + 3] >> 6); + ieee->ieee_stats.rx_discards_undecryptable++; + return -1; + } + + return res; +} + +/* Called only as a tasklet (software IRQ), by libipw_rx */ +static int +libipw_rx_frame_decrypt_msdu(struct libipw_device *ieee, + struct sk_buff *skb, int keyidx, + struct lib80211_crypt_data *crypt) +{ + struct libipw_hdr_3addr *hdr; + int res, hdrlen; + + if (crypt == NULL || crypt->ops->decrypt_msdu == NULL) + return 0; + + hdr = (struct libipw_hdr_3addr *)skb->data; + hdrlen = libipw_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); + + atomic_inc(&crypt->refcnt); + res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv); + atomic_dec(&crypt->refcnt); + if (res < 0) { + printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed" + " (SA=%pM keyidx=%d)\n", ieee->dev->name, hdr->addr2, + keyidx); + return -1; + } + + return 0; +} + +/* All received frames are sent to this function. @skb contains the frame in + * IEEE 802.11 format, i.e., in the format it was sent over air. + * This function is called only as a tasklet (software IRQ). */ +int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb, + struct libipw_rx_stats *rx_stats) +{ + struct net_device *dev = ieee->dev; + struct libipw_hdr_4addr *hdr; + size_t hdrlen; + u16 fc, type, stype, sc; + unsigned int frag; + u8 *payload; + u16 ethertype; +#ifdef NOT_YET + struct net_device *wds = NULL; + struct sk_buff *skb2 = NULL; + struct net_device *wds = NULL; + int frame_authorized = 0; + int from_assoc_ap = 0; + void *sta = NULL; +#endif + u8 dst[ETH_ALEN]; + u8 src[ETH_ALEN]; + struct lib80211_crypt_data *crypt = NULL; + int keyidx = 0; + int can_be_decrypted = 0; + + hdr = (struct libipw_hdr_4addr *)skb->data; + if (skb->len < 10) { + printk(KERN_INFO "%s: SKB length < 10\n", dev->name); + goto rx_dropped; + } + + fc = le16_to_cpu(hdr->frame_ctl); + type = WLAN_FC_GET_TYPE(fc); + stype = WLAN_FC_GET_STYPE(fc); + sc = le16_to_cpu(hdr->seq_ctl); + frag = WLAN_GET_SEQ_FRAG(sc); + hdrlen = libipw_get_hdrlen(fc); + + if (skb->len < hdrlen) { + printk(KERN_INFO "%s: invalid SKB length %d\n", + dev->name, skb->len); + goto rx_dropped; + } + + /* Put this code here so that we avoid duplicating it in all + * Rx paths. - Jean II */ +#ifdef CONFIG_WIRELESS_EXT +#ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ + /* If spy monitoring on */ + if (ieee->spy_data.spy_number > 0) { + struct iw_quality wstats; + + wstats.updated = 0; + if (rx_stats->mask & LIBIPW_STATMASK_RSSI) { + wstats.level = rx_stats->signal; + wstats.updated |= IW_QUAL_LEVEL_UPDATED; + } else + wstats.updated |= IW_QUAL_LEVEL_INVALID; + + if (rx_stats->mask & LIBIPW_STATMASK_NOISE) { + wstats.noise = rx_stats->noise; + wstats.updated |= IW_QUAL_NOISE_UPDATED; + } else + wstats.updated |= IW_QUAL_NOISE_INVALID; + + if (rx_stats->mask & LIBIPW_STATMASK_SIGNAL) { + wstats.qual = rx_stats->signal; + wstats.updated |= IW_QUAL_QUAL_UPDATED; + } else + wstats.updated |= IW_QUAL_QUAL_INVALID; + + /* Update spy records */ + wireless_spy_update(ieee->dev, hdr->addr2, &wstats); + } +#endif /* IW_WIRELESS_SPY */ +#endif /* CONFIG_WIRELESS_EXT */ + +#ifdef NOT_YET + hostap_update_rx_stats(local->ap, hdr, rx_stats); +#endif + + if (ieee->iw_mode == IW_MODE_MONITOR) { + dev->stats.rx_packets++; + dev->stats.rx_bytes += skb->len; + libipw_monitor_rx(ieee, skb, rx_stats); + return 1; + } + + can_be_decrypted = (is_multicast_ether_addr(hdr->addr1) || + is_broadcast_ether_addr(hdr->addr2)) ? + ieee->host_mc_decrypt : ieee->host_decrypt; + + if (can_be_decrypted) { + if (skb->len >= hdrlen + 3) { + /* Top two-bits of byte 3 are the key index */ + keyidx = skb->data[hdrlen + 3] >> 6; + } + + /* ieee->crypt[] is WEP_KEY (4) in length. Given that keyidx + * is only allowed 2-bits of storage, no value of keyidx can + * be provided via above code that would result in keyidx + * being out of range */ + crypt = ieee->crypt_info.crypt[keyidx]; + +#ifdef NOT_YET + sta = NULL; + + /* Use station specific key to override default keys if the + * receiver address is a unicast address ("individual RA"). If + * bcrx_sta_key parameter is set, station specific key is used + * even with broad/multicast targets (this is against IEEE + * 802.11, but makes it easier to use different keys with + * stations that do not support WEP key mapping). */ + + if (is_unicast_ether_addr(hdr->addr1) || local->bcrx_sta_key) + (void)hostap_handle_sta_crypto(local, hdr, &crypt, + &sta); +#endif + + /* allow NULL decrypt to indicate an station specific override + * for default encryption */ + if (crypt && (crypt->ops == NULL || + crypt->ops->decrypt_mpdu == NULL)) + crypt = NULL; + + if (!crypt && (fc & IEEE80211_FCTL_PROTECTED)) { + /* This seems to be triggered by some (multicast?) + * frames from other than current BSS, so just drop the + * frames silently instead of filling system log with + * these reports. */ + LIBIPW_DEBUG_DROP("Decryption failed (not set)" + " (SA=%pM)\n", hdr->addr2); + ieee->ieee_stats.rx_discards_undecryptable++; + goto rx_dropped; + } + } +#ifdef NOT_YET + if (type != WLAN_FC_TYPE_DATA) { + if (type == WLAN_FC_TYPE_MGMT && stype == WLAN_FC_STYPE_AUTH && + fc & IEEE80211_FCTL_PROTECTED && ieee->host_decrypt && + (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) { + printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth " + "from %pM\n", dev->name, hdr->addr2); + /* TODO: could inform hostapd about this so that it + * could send auth failure report */ + goto rx_dropped; + } + + if (libipw_rx_frame_mgmt(ieee, skb, rx_stats, type, stype)) + goto rx_dropped; + else + goto rx_exit; + } +#endif + /* drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.29) */ + if (sc == ieee->prev_seq_ctl) + goto rx_dropped; + else + ieee->prev_seq_ctl = sc; + + /* Data frame - extract src/dst addresses */ + if (skb->len < LIBIPW_3ADDR_LEN) + goto rx_dropped; + + switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { + case IEEE80211_FCTL_FROMDS: + memcpy(dst, hdr->addr1, ETH_ALEN); + memcpy(src, hdr->addr3, ETH_ALEN); + break; + case IEEE80211_FCTL_TODS: + memcpy(dst, hdr->addr3, ETH_ALEN); + memcpy(src, hdr->addr2, ETH_ALEN); + break; + case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS: + if (skb->len < LIBIPW_4ADDR_LEN) + goto rx_dropped; + memcpy(dst, hdr->addr3, ETH_ALEN); + memcpy(src, hdr->addr4, ETH_ALEN); + break; + default: + memcpy(dst, hdr->addr1, ETH_ALEN); + memcpy(src, hdr->addr2, ETH_ALEN); + break; + } + +#ifdef NOT_YET + if (hostap_rx_frame_wds(ieee, hdr, fc, &wds)) + goto rx_dropped; + if (wds) { + skb->dev = dev = wds; + stats = hostap_get_stats(dev); + } + + if (ieee->iw_mode == IW_MODE_MASTER && !wds && + (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_FROMDS && ieee->stadev && + ether_addr_equal(hdr->addr2, ieee->assoc_ap_addr)) { + /* Frame from BSSID of the AP for which we are a client */ + skb->dev = dev = ieee->stadev; + stats = hostap_get_stats(dev); + from_assoc_ap = 1; + } +#endif + +#ifdef NOT_YET + if ((ieee->iw_mode == IW_MODE_MASTER || + ieee->iw_mode == IW_MODE_REPEAT) && !from_assoc_ap) { + switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats, + wds != NULL)) { + case AP_RX_CONTINUE_NOT_AUTHORIZED: + frame_authorized = 0; + break; + case AP_RX_CONTINUE: + frame_authorized = 1; + break; + case AP_RX_DROP: + goto rx_dropped; + case AP_RX_EXIT: + goto rx_exit; + } + } +#endif + + /* Nullfunc frames may have PS-bit set, so they must be passed to + * hostap_handle_sta_rx() before being dropped here. */ + + stype &= ~IEEE80211_STYPE_QOS_DATA; + + if (stype != IEEE80211_STYPE_DATA && + stype != IEEE80211_STYPE_DATA_CFACK && + stype != IEEE80211_STYPE_DATA_CFPOLL && + stype != IEEE80211_STYPE_DATA_CFACKPOLL) { + if (stype != IEEE80211_STYPE_NULLFUNC) + LIBIPW_DEBUG_DROP("RX: dropped data frame " + "with no data (type=0x%02x, " + "subtype=0x%02x, len=%d)\n", + type, stype, skb->len); + goto rx_dropped; + } + + /* skb: hdr + (possibly fragmented, possibly encrypted) payload */ + + if ((fc & IEEE80211_FCTL_PROTECTED) && can_be_decrypted && + (keyidx = libipw_rx_frame_decrypt(ieee, skb, crypt)) < 0) + goto rx_dropped; + + hdr = (struct libipw_hdr_4addr *)skb->data; + + /* skb: hdr + (possibly fragmented) plaintext payload */ + // PR: FIXME: hostap has additional conditions in the "if" below: + // ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) && + if ((frag != 0) || (fc & IEEE80211_FCTL_MOREFRAGS)) { + int flen; + struct sk_buff *frag_skb = libipw_frag_cache_get(ieee, hdr); + LIBIPW_DEBUG_FRAG("Rx Fragment received (%u)\n", frag); + + if (!frag_skb) { + LIBIPW_DEBUG(LIBIPW_DL_RX | LIBIPW_DL_FRAG, + "Rx cannot get skb from fragment " + "cache (morefrag=%d seq=%u frag=%u)\n", + (fc & IEEE80211_FCTL_MOREFRAGS) != 0, + WLAN_GET_SEQ_SEQ(sc), frag); + goto rx_dropped; + } + + flen = skb->len; + if (frag != 0) + flen -= hdrlen; + + if (frag_skb->tail + flen > frag_skb->end) { + printk(KERN_WARNING "%s: host decrypted and " + "reassembled frame did not fit skb\n", + dev->name); + libipw_frag_cache_invalidate(ieee, hdr); + goto rx_dropped; + } + + if (frag == 0) { + /* copy first fragment (including full headers) into + * beginning of the fragment cache skb */ + skb_copy_from_linear_data(skb, skb_put(frag_skb, flen), flen); + } else { + /* append frame payload to the end of the fragment + * cache skb */ + skb_copy_from_linear_data_offset(skb, hdrlen, + skb_put(frag_skb, flen), flen); + } + dev_kfree_skb_any(skb); + skb = NULL; + + if (fc & IEEE80211_FCTL_MOREFRAGS) { + /* more fragments expected - leave the skb in fragment + * cache for now; it will be delivered to upper layers + * after all fragments have been received */ + goto rx_exit; + } + + /* this was the last fragment and the frame will be + * delivered, so remove skb from fragment cache */ + skb = frag_skb; + hdr = (struct libipw_hdr_4addr *)skb->data; + libipw_frag_cache_invalidate(ieee, hdr); + } + + /* skb: hdr + (possible reassembled) full MSDU payload; possibly still + * encrypted/authenticated */ + if ((fc & IEEE80211_FCTL_PROTECTED) && can_be_decrypted && + libipw_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) + goto rx_dropped; + + hdr = (struct libipw_hdr_4addr *)skb->data; + if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep) { + if ( /*ieee->ieee802_1x && */ + libipw_is_eapol_frame(ieee, skb)) { + /* pass unencrypted EAPOL frames even if encryption is + * configured */ + } else { + LIBIPW_DEBUG_DROP("encryption configured, but RX " + "frame not encrypted (SA=%pM)\n", + hdr->addr2); + goto rx_dropped; + } + } + + if (crypt && !(fc & IEEE80211_FCTL_PROTECTED) && !ieee->open_wep && + !libipw_is_eapol_frame(ieee, skb)) { + LIBIPW_DEBUG_DROP("dropped unencrypted RX data " + "frame from %pM (drop_unencrypted=1)\n", + hdr->addr2); + goto rx_dropped; + } + + /* If the frame was decrypted in hardware, we may need to strip off + * any security data (IV, ICV, etc) that was left behind */ + if (!can_be_decrypted && (fc & IEEE80211_FCTL_PROTECTED) && + ieee->host_strip_iv_icv) { + int trimlen = 0; + + /* Top two-bits of byte 3 are the key index */ + if (skb->len >= hdrlen + 3) + keyidx = skb->data[hdrlen + 3] >> 6; + + /* To strip off any security data which appears before the + * payload, we simply increase hdrlen (as the header gets + * chopped off immediately below). For the security data which + * appears after the payload, we use skb_trim. */ + + switch (ieee->sec.encode_alg[keyidx]) { + case SEC_ALG_WEP: + /* 4 byte IV */ + hdrlen += 4; + /* 4 byte ICV */ + trimlen = 4; + break; + case SEC_ALG_TKIP: + /* 4 byte IV, 4 byte ExtIV */ + hdrlen += 8; + /* 8 byte MIC, 4 byte ICV */ + trimlen = 12; + break; + case SEC_ALG_CCMP: + /* 8 byte CCMP header */ + hdrlen += 8; + /* 8 byte MIC */ + trimlen = 8; + break; + } + + if (skb->len < trimlen) + goto rx_dropped; + + __skb_trim(skb, skb->len - trimlen); + + if (skb->len < hdrlen) + goto rx_dropped; + } + + /* skb: hdr + (possible reassembled) full plaintext payload */ + + payload = skb->data + hdrlen; + ethertype = (payload[6] << 8) | payload[7]; + +#ifdef NOT_YET + /* If IEEE 802.1X is used, check whether the port is authorized to send + * the received frame. */ + if (ieee->ieee802_1x && ieee->iw_mode == IW_MODE_MASTER) { + if (ethertype == ETH_P_PAE) { + printk(KERN_DEBUG "%s: RX: IEEE 802.1X frame\n", + dev->name); + if (ieee->hostapd && ieee->apdev) { + /* Send IEEE 802.1X frames to the user + * space daemon for processing */ + prism2_rx_80211(ieee->apdev, skb, rx_stats, + PRISM2_RX_MGMT); + ieee->apdevstats.rx_packets++; + ieee->apdevstats.rx_bytes += skb->len; + goto rx_exit; + } + } else if (!frame_authorized) { + printk(KERN_DEBUG "%s: dropped frame from " + "unauthorized port (IEEE 802.1X): " + "ethertype=0x%04x\n", dev->name, ethertype); + goto rx_dropped; + } + } +#endif + + /* convert hdr + possible LLC headers into Ethernet header */ + if (skb->len - hdrlen >= 8 && + ((memcmp(payload, libipw_rfc1042_header, SNAP_SIZE) == 0 && + ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || + memcmp(payload, libipw_bridge_tunnel_header, SNAP_SIZE) == 0)) { + /* remove RFC1042 or Bridge-Tunnel encapsulation and + * replace EtherType */ + skb_pull(skb, hdrlen + SNAP_SIZE); + memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); + memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); + } else { + __be16 len; + /* Leave Ethernet header part of hdr and full payload */ + skb_pull(skb, hdrlen); + len = htons(skb->len); + memcpy(skb_push(skb, 2), &len, 2); + memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); + memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); + } + +#ifdef NOT_YET + if (wds && ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_TODS) && skb->len >= ETH_HLEN + ETH_ALEN) { + /* Non-standard frame: get addr4 from its bogus location after + * the payload */ + skb_copy_to_linear_data_offset(skb, ETH_ALEN, + skb->data + skb->len - ETH_ALEN, + ETH_ALEN); + skb_trim(skb, skb->len - ETH_ALEN); + } +#endif + + dev->stats.rx_packets++; + dev->stats.rx_bytes += skb->len; + +#ifdef NOT_YET + if (ieee->iw_mode == IW_MODE_MASTER && !wds && ieee->ap->bridge_packets) { + if (is_multicast_ether_addr(dst)) { + /* copy multicast frame both to the higher layers and + * to the wireless media */ + ieee->ap->bridged_multicast++; + skb2 = skb_clone(skb, GFP_ATOMIC); + if (skb2 == NULL) + printk(KERN_DEBUG "%s: skb_clone failed for " + "multicast frame\n", dev->name); + } else if (hostap_is_sta_assoc(ieee->ap, dst)) { + /* send frame directly to the associated STA using + * wireless media and not passing to higher layers */ + ieee->ap->bridged_unicast++; + skb2 = skb; + skb = NULL; + } + } + + if (skb2 != NULL) { + /* send to wireless media */ + skb2->dev = dev; + skb2->protocol = htons(ETH_P_802_3); + skb_reset_mac_header(skb2); + skb_reset_network_header(skb2); + /* skb2->network_header += ETH_HLEN; */ + dev_queue_xmit(skb2); + } +#endif + + if (skb) { + skb->protocol = eth_type_trans(skb, dev); + memset(skb->cb, 0, sizeof(skb->cb)); + skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */ + if (netif_rx(skb) == NET_RX_DROP) { + /* netif_rx always succeeds, but it might drop + * the packet. If it drops the packet, we log that + * in our stats. */ + LIBIPW_DEBUG_DROP + ("RX: netif_rx dropped the packet\n"); + dev->stats.rx_dropped++; + } + } + + rx_exit: +#ifdef NOT_YET + if (sta) + hostap_handle_sta_release(sta); +#endif + return 1; + + rx_dropped: + dev->stats.rx_dropped++; + + /* Returning 0 indicates to caller that we have not handled the SKB-- + * so it is still allocated and can be used again by underlying + * hardware as a DMA target */ + return 0; +} + +/* Filter out unrelated packets, call libipw_rx[_mgt] + * This function takes over the skb, it should not be used again after calling + * this function. */ +void libipw_rx_any(struct libipw_device *ieee, + struct sk_buff *skb, struct libipw_rx_stats *stats) +{ + struct libipw_hdr_4addr *hdr; + int is_packet_for_us; + u16 fc; + + if (ieee->iw_mode == IW_MODE_MONITOR) { + if (!libipw_rx(ieee, skb, stats)) + dev_kfree_skb_irq(skb); + return; + } + + if (skb->len < sizeof(struct ieee80211_hdr)) + goto drop_free; + + hdr = (struct libipw_hdr_4addr *)skb->data; + fc = le16_to_cpu(hdr->frame_ctl); + + if ((fc & IEEE80211_FCTL_VERS) != 0) + goto drop_free; + + switch (fc & IEEE80211_FCTL_FTYPE) { + case IEEE80211_FTYPE_MGMT: + if (skb->len < sizeof(struct libipw_hdr_3addr)) + goto drop_free; + libipw_rx_mgt(ieee, hdr, stats); + dev_kfree_skb_irq(skb); + return; + case IEEE80211_FTYPE_DATA: + break; + case IEEE80211_FTYPE_CTL: + return; + default: + return; + } + + is_packet_for_us = 0; + switch (ieee->iw_mode) { + case IW_MODE_ADHOC: + /* our BSS and not from/to DS */ + if (ether_addr_equal(hdr->addr3, ieee->bssid)) + if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == 0) { + /* promisc: get all */ + if (ieee->dev->flags & IFF_PROMISC) + is_packet_for_us = 1; + /* to us */ + else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr)) + is_packet_for_us = 1; + /* mcast */ + else if (is_multicast_ether_addr(hdr->addr1)) + is_packet_for_us = 1; + } + break; + case IW_MODE_INFRA: + /* our BSS (== from our AP) and from DS */ + if (ether_addr_equal(hdr->addr2, ieee->bssid)) + if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS) { + /* promisc: get all */ + if (ieee->dev->flags & IFF_PROMISC) + is_packet_for_us = 1; + /* to us */ + else if (ether_addr_equal(hdr->addr1, ieee->dev->dev_addr)) + is_packet_for_us = 1; + /* mcast */ + else if (is_multicast_ether_addr(hdr->addr1)) { + /* not our own packet bcasted from AP */ + if (!ether_addr_equal(hdr->addr3, ieee->dev->dev_addr)) + is_packet_for_us = 1; + } + } + break; + default: + /* ? */ + break; + } + + if (is_packet_for_us) + if (!libipw_rx(ieee, skb, stats)) + dev_kfree_skb_irq(skb); + return; + +drop_free: + dev_kfree_skb_irq(skb); + ieee->dev->stats.rx_dropped++; +} + +#define MGMT_FRAME_FIXED_PART_LENGTH 0x24 + +static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 }; + +/* +* Make the structure we read from the beacon packet to have +* the right values +*/ +static int libipw_verify_qos_info(struct libipw_qos_information_element + *info_element, int sub_type) +{ + if (info_element->elementID != QOS_ELEMENT_ID) + return -1; + if (info_element->qui_subtype != sub_type) + return -1; + if (memcmp(info_element->qui, qos_oui, QOS_OUI_LEN)) + return -1; + if (info_element->qui_type != QOS_OUI_TYPE) + return -1; + if (info_element->version != QOS_VERSION_1) + return -1; + + return 0; +} + +/* + * Parse a QoS parameter element + */ +static int libipw_read_qos_param_element( + struct libipw_qos_parameter_info *element_param, + struct libipw_info_element *info_element) +{ + size_t size = sizeof(*element_param); + + if (!element_param || !info_element || info_element->len != size - 2) + return -1; + + memcpy(element_param, info_element, size); + return libipw_verify_qos_info(&element_param->info_element, + QOS_OUI_PARAM_SUB_TYPE); +} + +/* + * Parse a QoS information element + */ +static int libipw_read_qos_info_element( + struct libipw_qos_information_element *element_info, + struct libipw_info_element *info_element) +{ + size_t size = sizeof(struct libipw_qos_information_element) - 2; + + if (!element_info || !info_element || info_element->len != size - 2) + return -1; + + memcpy(element_info, info_element, size); + return libipw_verify_qos_info(element_info, QOS_OUI_INFO_SUB_TYPE); +} + +/* + * Write QoS parameters from the ac parameters. + */ +static void libipw_qos_convert_ac_to_parameters(struct + libipw_qos_parameter_info + *param_elm, struct + libipw_qos_parameters + *qos_param) +{ + int i; + struct libipw_qos_ac_parameter *ac_params; + u32 txop; + u8 cw_min; + u8 cw_max; + + for (i = 0; i < QOS_QUEUE_NUM; i++) { + ac_params = &(param_elm->ac_params_record[i]); + + qos_param->aifs[i] = (ac_params->aci_aifsn) & 0x0F; + qos_param->aifs[i] -= (qos_param->aifs[i] < 2) ? 0 : 2; + + cw_min = ac_params->ecw_min_max & 0x0F; + qos_param->cw_min[i] = cpu_to_le16((1 << cw_min) - 1); + + cw_max = (ac_params->ecw_min_max & 0xF0) >> 4; + qos_param->cw_max[i] = cpu_to_le16((1 << cw_max) - 1); + + qos_param->flag[i] = + (ac_params->aci_aifsn & 0x10) ? 0x01 : 0x00; + + txop = le16_to_cpu(ac_params->tx_op_limit) * 32; + qos_param->tx_op_limit[i] = cpu_to_le16(txop); + } +} + +/* + * we have a generic data element which it may contain QoS information or + * parameters element. check the information element length to decide + * which type to read + */ +static int libipw_parse_qos_info_param_IE(struct libipw_info_element + *info_element, + struct libipw_network *network) +{ + int rc = 0; + struct libipw_qos_parameters *qos_param = NULL; + struct libipw_qos_information_element qos_info_element; + + rc = libipw_read_qos_info_element(&qos_info_element, info_element); + + if (rc == 0) { + network->qos_data.param_count = qos_info_element.ac_info & 0x0F; + network->flags |= NETWORK_HAS_QOS_INFORMATION; + } else { + struct libipw_qos_parameter_info param_element; + + rc = libipw_read_qos_param_element(¶m_element, + info_element); + if (rc == 0) { + qos_param = &(network->qos_data.parameters); + libipw_qos_convert_ac_to_parameters(¶m_element, + qos_param); + network->flags |= NETWORK_HAS_QOS_PARAMETERS; + network->qos_data.param_count = + param_element.info_element.ac_info & 0x0F; + } + } + + if (rc == 0) { + LIBIPW_DEBUG_QOS("QoS is supported\n"); + network->qos_data.supported = 1; + } + return rc; +} + +#ifdef CONFIG_LIBIPW_DEBUG +#define MFIE_STRING(x) case WLAN_EID_ ##x: return #x + +static const char *get_info_element_string(u16 id) +{ + switch (id) { + MFIE_STRING(SSID); + MFIE_STRING(SUPP_RATES); + MFIE_STRING(FH_PARAMS); + MFIE_STRING(DS_PARAMS); + MFIE_STRING(CF_PARAMS); + MFIE_STRING(TIM); + MFIE_STRING(IBSS_PARAMS); + MFIE_STRING(COUNTRY); + MFIE_STRING(REQUEST); + MFIE_STRING(CHALLENGE); + MFIE_STRING(PWR_CONSTRAINT); + MFIE_STRING(PWR_CAPABILITY); + MFIE_STRING(TPC_REQUEST); + MFIE_STRING(TPC_REPORT); + MFIE_STRING(SUPPORTED_CHANNELS); + MFIE_STRING(CHANNEL_SWITCH); + MFIE_STRING(MEASURE_REQUEST); + MFIE_STRING(MEASURE_REPORT); + MFIE_STRING(QUIET); + MFIE_STRING(IBSS_DFS); + MFIE_STRING(ERP_INFO); + MFIE_STRING(RSN); + MFIE_STRING(EXT_SUPP_RATES); + MFIE_STRING(VENDOR_SPECIFIC); + MFIE_STRING(QOS_PARAMETER); + default: + return "UNKNOWN"; + } +} +#endif + +static int libipw_parse_info_param(struct libipw_info_element + *info_element, u16 length, + struct libipw_network *network) +{ + u8 i; +#ifdef CONFIG_LIBIPW_DEBUG + char rates_str[64]; + char *p; +#endif + + while (length >= sizeof(*info_element)) { + if (sizeof(*info_element) + info_element->len > length) { + LIBIPW_DEBUG_MGMT("Info elem: parse failed: " + "info_element->len + 2 > left : " + "info_element->len+2=%zd left=%d, id=%d.\n", + info_element->len + + sizeof(*info_element), + length, info_element->id); + /* We stop processing but don't return an error here + * because some misbehaviour APs break this rule. ie. + * Orinoco AP1000. */ + break; + } + + switch (info_element->id) { + case WLAN_EID_SSID: + network->ssid_len = min(info_element->len, + (u8) IW_ESSID_MAX_SIZE); + memcpy(network->ssid, info_element->data, + network->ssid_len); + if (network->ssid_len < IW_ESSID_MAX_SIZE) + memset(network->ssid + network->ssid_len, 0, + IW_ESSID_MAX_SIZE - network->ssid_len); + + LIBIPW_DEBUG_MGMT("WLAN_EID_SSID: '%*pE' len=%d.\n", + network->ssid_len, network->ssid, + network->ssid_len); + break; + + case WLAN_EID_SUPP_RATES: +#ifdef CONFIG_LIBIPW_DEBUG + p = rates_str; +#endif + network->rates_len = min(info_element->len, + MAX_RATES_LENGTH); + for (i = 0; i < network->rates_len; i++) { + network->rates[i] = info_element->data[i]; +#ifdef CONFIG_LIBIPW_DEBUG + p += scnprintf(p, sizeof(rates_str) - + (p - rates_str), "%02X ", + network->rates[i]); +#endif + if (libipw_is_ofdm_rate + (info_element->data[i])) { + network->flags |= NETWORK_HAS_OFDM; + if (info_element->data[i] & + LIBIPW_BASIC_RATE_MASK) + network->flags &= + ~NETWORK_HAS_CCK; + } + } + + LIBIPW_DEBUG_MGMT("WLAN_EID_SUPP_RATES: '%s' (%d)\n", + rates_str, network->rates_len); + break; + + case WLAN_EID_EXT_SUPP_RATES: +#ifdef CONFIG_LIBIPW_DEBUG + p = rates_str; +#endif + network->rates_ex_len = min(info_element->len, + MAX_RATES_EX_LENGTH); + for (i = 0; i < network->rates_ex_len; i++) { + network->rates_ex[i] = info_element->data[i]; +#ifdef CONFIG_LIBIPW_DEBUG + p += scnprintf(p, sizeof(rates_str) - + (p - rates_str), "%02X ", + network->rates_ex[i]); +#endif + if (libipw_is_ofdm_rate + (info_element->data[i])) { + network->flags |= NETWORK_HAS_OFDM; + if (info_element->data[i] & + LIBIPW_BASIC_RATE_MASK) + network->flags &= + ~NETWORK_HAS_CCK; + } + } + + LIBIPW_DEBUG_MGMT("WLAN_EID_EXT_SUPP_RATES: '%s' (%d)\n", + rates_str, network->rates_ex_len); + break; + + case WLAN_EID_DS_PARAMS: + LIBIPW_DEBUG_MGMT("WLAN_EID_DS_PARAMS: %d\n", + info_element->data[0]); + network->channel = info_element->data[0]; + break; + + case WLAN_EID_FH_PARAMS: + LIBIPW_DEBUG_MGMT("WLAN_EID_FH_PARAMS: ignored\n"); + break; + + case WLAN_EID_CF_PARAMS: + LIBIPW_DEBUG_MGMT("WLAN_EID_CF_PARAMS: ignored\n"); + break; + + case WLAN_EID_TIM: + network->tim.tim_count = info_element->data[0]; + network->tim.tim_period = info_element->data[1]; + LIBIPW_DEBUG_MGMT("WLAN_EID_TIM: partially ignored\n"); + break; + + case WLAN_EID_ERP_INFO: + network->erp_value = info_element->data[0]; + network->flags |= NETWORK_HAS_ERP_VALUE; + LIBIPW_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n", + network->erp_value); + break; + + case WLAN_EID_IBSS_PARAMS: + network->atim_window = info_element->data[0]; + LIBIPW_DEBUG_MGMT("WLAN_EID_IBSS_PARAMS: %d\n", + network->atim_window); + break; + + case WLAN_EID_CHALLENGE: + LIBIPW_DEBUG_MGMT("WLAN_EID_CHALLENGE: ignored\n"); + break; + + case WLAN_EID_VENDOR_SPECIFIC: + LIBIPW_DEBUG_MGMT("WLAN_EID_VENDOR_SPECIFIC: %d bytes\n", + info_element->len); + if (!libipw_parse_qos_info_param_IE(info_element, + network)) + break; + + if (info_element->len >= 4 && + info_element->data[0] == 0x00 && + info_element->data[1] == 0x50 && + info_element->data[2] == 0xf2 && + info_element->data[3] == 0x01) { + network->wpa_ie_len = min(info_element->len + 2, + MAX_WPA_IE_LEN); + memcpy(network->wpa_ie, info_element, + network->wpa_ie_len); + } + break; + + case WLAN_EID_RSN: + LIBIPW_DEBUG_MGMT("WLAN_EID_RSN: %d bytes\n", + info_element->len); + network->rsn_ie_len = min(info_element->len + 2, + MAX_WPA_IE_LEN); + memcpy(network->rsn_ie, info_element, + network->rsn_ie_len); + break; + + case WLAN_EID_QOS_PARAMETER: + printk(KERN_ERR + "QoS Error need to parse QOS_PARAMETER IE\n"); + break; + /* 802.11h */ + case WLAN_EID_PWR_CONSTRAINT: + network->power_constraint = info_element->data[0]; + network->flags |= NETWORK_HAS_POWER_CONSTRAINT; + break; + + case WLAN_EID_CHANNEL_SWITCH: + network->power_constraint = info_element->data[0]; + network->flags |= NETWORK_HAS_CSA; + break; + + case WLAN_EID_QUIET: + network->quiet.count = info_element->data[0]; + network->quiet.period = info_element->data[1]; + network->quiet.duration = info_element->data[2]; + network->quiet.offset = info_element->data[3]; + network->flags |= NETWORK_HAS_QUIET; + break; + + case WLAN_EID_IBSS_DFS: + network->flags |= NETWORK_HAS_IBSS_DFS; + break; + + case WLAN_EID_TPC_REPORT: + network->tpc_report.transmit_power = + info_element->data[0]; + network->tpc_report.link_margin = info_element->data[1]; + network->flags |= NETWORK_HAS_TPC_REPORT; + break; + + default: + LIBIPW_DEBUG_MGMT + ("Unsupported info element: %s (%d)\n", + get_info_element_string(info_element->id), + info_element->id); + break; + } + + length -= sizeof(*info_element) + info_element->len; + info_element = + (struct libipw_info_element *)&info_element-> + data[info_element->len]; + } + + return 0; +} + +static int libipw_handle_assoc_resp(struct libipw_device *ieee, struct libipw_assoc_response + *frame, struct libipw_rx_stats *stats) +{ + struct libipw_network network_resp = { }; + struct libipw_network *network = &network_resp; + struct net_device *dev = ieee->dev; + + network->flags = 0; + network->qos_data.active = 0; + network->qos_data.supported = 0; + network->qos_data.param_count = 0; + network->qos_data.old_param_count = 0; + + //network->atim_window = le16_to_cpu(frame->aid) & (0x3FFF); + network->atim_window = le16_to_cpu(frame->aid); + network->listen_interval = le16_to_cpu(frame->status); + memcpy(network->bssid, frame->header.addr3, ETH_ALEN); + network->capability = le16_to_cpu(frame->capability); + network->last_scanned = jiffies; + network->rates_len = network->rates_ex_len = 0; + network->last_associate = 0; + network->ssid_len = 0; + network->erp_value = + (network->capability & WLAN_CAPABILITY_IBSS) ? 0x3 : 0x0; + + if (stats->freq == LIBIPW_52GHZ_BAND) { + /* for A band (No DS info) */ + network->channel = stats->received_channel; + } else + network->flags |= NETWORK_HAS_CCK; + + network->wpa_ie_len = 0; + network->rsn_ie_len = 0; + + if (libipw_parse_info_param((void *)frame->variable, + stats->len - sizeof(*frame), network)) + return 1; + + network->mode = 0; + if (stats->freq == LIBIPW_52GHZ_BAND) + network->mode = IEEE_A; + else { + if (network->flags & NETWORK_HAS_OFDM) + network->mode |= IEEE_G; + if (network->flags & NETWORK_HAS_CCK) + network->mode |= IEEE_B; + } + + memcpy(&network->stats, stats, sizeof(network->stats)); + + if (ieee->handle_assoc_response != NULL) + ieee->handle_assoc_response(dev, frame, network); + + return 0; +} + +/***************************************************/ + +static int libipw_network_init(struct libipw_device *ieee, struct libipw_probe_response + *beacon, + struct libipw_network *network, + struct libipw_rx_stats *stats) +{ + network->qos_data.active = 0; + network->qos_data.supported = 0; + network->qos_data.param_count = 0; + network->qos_data.old_param_count = 0; + + /* Pull out fixed field data */ + memcpy(network->bssid, beacon->header.addr3, ETH_ALEN); + network->capability = le16_to_cpu(beacon->capability); + network->last_scanned = jiffies; + network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]); + network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]); + network->beacon_interval = le16_to_cpu(beacon->beacon_interval); + /* Where to pull this? beacon->listen_interval; */ + network->listen_interval = 0x0A; + network->rates_len = network->rates_ex_len = 0; + network->last_associate = 0; + network->ssid_len = 0; + network->flags = 0; + network->atim_window = 0; + network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ? + 0x3 : 0x0; + + if (stats->freq == LIBIPW_52GHZ_BAND) { + /* for A band (No DS info) */ + network->channel = stats->received_channel; + } else + network->flags |= NETWORK_HAS_CCK; + + network->wpa_ie_len = 0; + network->rsn_ie_len = 0; + + if (libipw_parse_info_param((void *)beacon->variable, + stats->len - sizeof(*beacon), network)) + return 1; + + network->mode = 0; + if (stats->freq == LIBIPW_52GHZ_BAND) + network->mode = IEEE_A; + else { + if (network->flags & NETWORK_HAS_OFDM) + network->mode |= IEEE_G; + if (network->flags & NETWORK_HAS_CCK) + network->mode |= IEEE_B; + } + + if (network->mode == 0) { + LIBIPW_DEBUG_SCAN("Filtered out '%*pE (%pM)' network.\n", + network->ssid_len, network->ssid, + network->bssid); + return 1; + } + + memcpy(&network->stats, stats, sizeof(network->stats)); + + return 0; +} + +static inline int is_same_network(struct libipw_network *src, + struct libipw_network *dst) +{ + /* A network is only a duplicate if the channel, BSSID, and ESSID + * all match. We treat all <hidden> with the same BSSID and channel + * as one network */ + return ((src->ssid_len == dst->ssid_len) && + (src->channel == dst->channel) && + ether_addr_equal_64bits(src->bssid, dst->bssid) && + !memcmp(src->ssid, dst->ssid, src->ssid_len)); +} + +static void update_network(struct libipw_network *dst, + struct libipw_network *src) +{ + int qos_active; + u8 old_param; + + /* We only update the statistics if they were created by receiving + * the network information on the actual channel the network is on. + * + * This keeps beacons received on neighbor channels from bringing + * down the signal level of an AP. */ + if (dst->channel == src->stats.received_channel) + memcpy(&dst->stats, &src->stats, + sizeof(struct libipw_rx_stats)); + else + LIBIPW_DEBUG_SCAN("Network %pM info received " + "off channel (%d vs. %d)\n", src->bssid, + dst->channel, src->stats.received_channel); + + dst->capability = src->capability; + memcpy(dst->rates, src->rates, src->rates_len); + dst->rates_len = src->rates_len; + memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len); + dst->rates_ex_len = src->rates_ex_len; + + dst->mode = src->mode; + dst->flags = src->flags; + dst->time_stamp[0] = src->time_stamp[0]; + dst->time_stamp[1] = src->time_stamp[1]; + + dst->beacon_interval = src->beacon_interval; + dst->listen_interval = src->listen_interval; + dst->atim_window = src->atim_window; + dst->erp_value = src->erp_value; + dst->tim = src->tim; + + memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len); + dst->wpa_ie_len = src->wpa_ie_len; + memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len); + dst->rsn_ie_len = src->rsn_ie_len; + + dst->last_scanned = jiffies; + qos_active = src->qos_data.active; + old_param = dst->qos_data.old_param_count; + if (dst->flags & NETWORK_HAS_QOS_MASK) + memcpy(&dst->qos_data, &src->qos_data, + sizeof(struct libipw_qos_data)); + else { + dst->qos_data.supported = src->qos_data.supported; + dst->qos_data.param_count = src->qos_data.param_count; + } + + if (dst->qos_data.supported == 1) { + if (dst->ssid_len) + LIBIPW_DEBUG_QOS + ("QoS the network %s is QoS supported\n", + dst->ssid); + else + LIBIPW_DEBUG_QOS + ("QoS the network is QoS supported\n"); + } + dst->qos_data.active = qos_active; + dst->qos_data.old_param_count = old_param; + + /* dst->last_associate is not overwritten */ +} + +static inline int is_beacon(__le16 fc) +{ + return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON); +} + +static void libipw_process_probe_response(struct libipw_device + *ieee, struct + libipw_probe_response + *beacon, struct libipw_rx_stats + *stats) +{ + struct net_device *dev = ieee->dev; + struct libipw_network network = { }; + struct libipw_network *target; + struct libipw_network *oldest = NULL; +#ifdef CONFIG_LIBIPW_DEBUG + struct libipw_info_element *info_element = (void *)beacon->variable; +#endif + unsigned long flags; + + LIBIPW_DEBUG_SCAN("'%*pE' (%pM): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", + info_element->len, info_element->data, + beacon->header.addr3, + (beacon->capability & cpu_to_le16(1 << 0xf)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0xe)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0xd)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0xc)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0xb)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0xa)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x9)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x8)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x7)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x6)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x5)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x4)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x3)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x2)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x1)) ? '1' : '0', + (beacon->capability & cpu_to_le16(1 << 0x0)) ? '1' : '0'); + + if (libipw_network_init(ieee, beacon, &network, stats)) { + LIBIPW_DEBUG_SCAN("Dropped '%*pE' (%pM) via %s.\n", + info_element->len, info_element->data, + beacon->header.addr3, + is_beacon(beacon->header.frame_ctl) ? + "BEACON" : "PROBE RESPONSE"); + return; + } + + /* The network parsed correctly -- so now we scan our known networks + * to see if we can find it in our list. + * + * NOTE: This search is definitely not optimized. Once its doing + * the "right thing" we'll optimize it for efficiency if + * necessary */ + + /* Search for this entry in the list and update it if it is + * already there. */ + + spin_lock_irqsave(&ieee->lock, flags); + + list_for_each_entry(target, &ieee->network_list, list) { + if (is_same_network(target, &network)) + break; + + if ((oldest == NULL) || + time_before(target->last_scanned, oldest->last_scanned)) + oldest = target; + } + + /* If we didn't find a match, then get a new network slot to initialize + * with this beacon's information */ + if (&target->list == &ieee->network_list) { + if (list_empty(&ieee->network_free_list)) { + /* If there are no more slots, expire the oldest */ + list_del(&oldest->list); + target = oldest; + LIBIPW_DEBUG_SCAN("Expired '%*pE' (%pM) from network list.\n", + target->ssid_len, target->ssid, + target->bssid); + } else { + /* Otherwise just pull from the free list */ + target = list_entry(ieee->network_free_list.next, + struct libipw_network, list); + list_del(ieee->network_free_list.next); + } + +#ifdef CONFIG_LIBIPW_DEBUG + LIBIPW_DEBUG_SCAN("Adding '%*pE' (%pM) via %s.\n", + network.ssid_len, network.ssid, + network.bssid, + is_beacon(beacon->header.frame_ctl) ? + "BEACON" : "PROBE RESPONSE"); +#endif + memcpy(target, &network, sizeof(*target)); + list_add_tail(&target->list, &ieee->network_list); + } else { + LIBIPW_DEBUG_SCAN("Updating '%*pE' (%pM) via %s.\n", + target->ssid_len, target->ssid, + target->bssid, + is_beacon(beacon->header.frame_ctl) ? + "BEACON" : "PROBE RESPONSE"); + update_network(target, &network); + } + + spin_unlock_irqrestore(&ieee->lock, flags); + + if (is_beacon(beacon->header.frame_ctl)) { + if (ieee->handle_beacon != NULL) + ieee->handle_beacon(dev, beacon, target); + } else { + if (ieee->handle_probe_response != NULL) + ieee->handle_probe_response(dev, beacon, target); + } +} + +void libipw_rx_mgt(struct libipw_device *ieee, + struct libipw_hdr_4addr *header, + struct libipw_rx_stats *stats) +{ + switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) { + case IEEE80211_STYPE_ASSOC_RESP: + LIBIPW_DEBUG_MGMT("received ASSOCIATION RESPONSE (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + libipw_handle_assoc_resp(ieee, + (struct libipw_assoc_response *) + header, stats); + break; + + case IEEE80211_STYPE_REASSOC_RESP: + LIBIPW_DEBUG_MGMT("received REASSOCIATION RESPONSE (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + break; + + case IEEE80211_STYPE_PROBE_REQ: + LIBIPW_DEBUG_MGMT("received auth (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + + if (ieee->handle_probe_request != NULL) + ieee->handle_probe_request(ieee->dev, + (struct + libipw_probe_request *) + header, stats); + break; + + case IEEE80211_STYPE_PROBE_RESP: + LIBIPW_DEBUG_MGMT("received PROBE RESPONSE (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + LIBIPW_DEBUG_SCAN("Probe response\n"); + libipw_process_probe_response(ieee, + (struct + libipw_probe_response *) + header, stats); + break; + + case IEEE80211_STYPE_BEACON: + LIBIPW_DEBUG_MGMT("received BEACON (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + LIBIPW_DEBUG_SCAN("Beacon\n"); + libipw_process_probe_response(ieee, + (struct + libipw_probe_response *) + header, stats); + break; + case IEEE80211_STYPE_AUTH: + + LIBIPW_DEBUG_MGMT("received auth (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + + if (ieee->handle_auth != NULL) + ieee->handle_auth(ieee->dev, + (struct libipw_auth *)header); + break; + + case IEEE80211_STYPE_DISASSOC: + if (ieee->handle_disassoc != NULL) + ieee->handle_disassoc(ieee->dev, + (struct libipw_disassoc *) + header); + break; + + case IEEE80211_STYPE_ACTION: + LIBIPW_DEBUG_MGMT("ACTION\n"); + if (ieee->handle_action) + ieee->handle_action(ieee->dev, + (struct libipw_action *) + header, stats); + break; + + case IEEE80211_STYPE_REASSOC_REQ: + LIBIPW_DEBUG_MGMT("received reassoc (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + + LIBIPW_DEBUG_MGMT("%s: LIBIPW_REASSOC_REQ received\n", + ieee->dev->name); + if (ieee->handle_reassoc_request != NULL) + ieee->handle_reassoc_request(ieee->dev, + (struct libipw_reassoc_request *) + header); + break; + + case IEEE80211_STYPE_ASSOC_REQ: + LIBIPW_DEBUG_MGMT("received assoc (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + + LIBIPW_DEBUG_MGMT("%s: LIBIPW_ASSOC_REQ received\n", + ieee->dev->name); + if (ieee->handle_assoc_request != NULL) + ieee->handle_assoc_request(ieee->dev); + break; + + case IEEE80211_STYPE_DEAUTH: + LIBIPW_DEBUG_MGMT("DEAUTH\n"); + if (ieee->handle_deauth != NULL) + ieee->handle_deauth(ieee->dev, + (struct libipw_deauth *) + header); + break; + default: + LIBIPW_DEBUG_MGMT("received UNKNOWN (%d)\n", + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + LIBIPW_DEBUG_MGMT("%s: Unknown management packet: %d\n", + ieee->dev->name, + WLAN_FC_GET_STYPE(le16_to_cpu + (header->frame_ctl))); + break; + } +} + +EXPORT_SYMBOL_GPL(libipw_rx_any); +EXPORT_SYMBOL(libipw_rx_mgt); +EXPORT_SYMBOL(libipw_rx); diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_tx.c b/drivers/net/wireless/intel/ipw2x00/libipw_tx.c new file mode 100644 index 000000000..4aec1fce1 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/libipw_tx.c @@ -0,0 +1,519 @@ +// SPDX-License-Identifier: GPL-2.0-only +/****************************************************************************** + + Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved. + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/if_arp.h> +#include <linux/in6.h> +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/proc_fs.h> +#include <linux/skbuff.h> +#include <linux/slab.h> +#include <linux/tcp.h> +#include <linux/types.h> +#include <linux/wireless.h> +#include <linux/etherdevice.h> +#include <linux/uaccess.h> + +#include "libipw.h" + +/* + +802.11 Data Frame + + ,-------------------------------------------------------------------. +Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | + |------|------|---------|---------|---------|------|---------|------| +Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | Frame | fcs | + | | tion | (BSSID) | | | ence | data | | + `--------------------------------------------------| |------' +Total: 28 non-data bytes `----.----' + | + .- 'Frame data' expands, if WEP enabled, to <----------' + | + V + ,-----------------------. +Bytes | 4 | 0-2296 | 4 | + |-----|-----------|-----| +Desc. | IV | Encrypted | ICV | + | | Packet | | + `-----| |-----' + `-----.-----' + | + .- 'Encrypted Packet' expands to + | + V + ,---------------------------------------------------. +Bytes | 1 | 1 | 1 | 3 | 2 | 0-2304 | + |------|------|---------|----------|------|---------| +Desc. | SNAP | SNAP | Control |Eth Tunnel| Type | IP | + | DSAP | SSAP | | | | Packet | + | 0xAA | 0xAA |0x03 (UI)|0x00-00-F8| | | + `---------------------------------------------------- +Total: 8 non-data bytes + +802.3 Ethernet Data Frame + + ,-----------------------------------------. +Bytes | 6 | 6 | 2 | Variable | 4 | + |-------|-------|------|-----------|------| +Desc. | Dest. | Source| Type | IP Packet | fcs | + | MAC | MAC | | | | + `-----------------------------------------' +Total: 18 non-data bytes + +In the event that fragmentation is required, the incoming payload is split into +N parts of size ieee->fts. The first fragment contains the SNAP header and the +remaining packets are just data. + +If encryption is enabled, each fragment payload size is reduced by enough space +to add the prefix and postfix (IV and ICV totalling 8 bytes in the case of WEP) +So if you have 1500 bytes of payload with ieee->fts set to 500 without +encryption it will take 3 frames. With WEP it will take 4 frames as the +payload of each frame is reduced to 492 bytes. + +* SKB visualization +* +* ,- skb->data +* | +* | ETHERNET HEADER ,-<-- PAYLOAD +* | | 14 bytes from skb->data +* | 2 bytes for Type --> ,T. | (sizeof ethhdr) +* | | | | +* |,-Dest.--. ,--Src.---. | | | +* | 6 bytes| | 6 bytes | | | | +* v | | | | | | +* 0 | v 1 | v | v 2 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 +* ^ | ^ | ^ | +* | | | | | | +* | | | | `T' <---- 2 bytes for Type +* | | | | +* | | '---SNAP--' <-------- 6 bytes for SNAP +* | | +* `-IV--' <-------------------- 4 bytes for IV (WEP) +* +* SNAP HEADER +* +*/ + +static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 }; +static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 }; + +static int libipw_copy_snap(u8 * data, __be16 h_proto) +{ + struct libipw_snap_hdr *snap; + u8 *oui; + + snap = (struct libipw_snap_hdr *)data; + snap->dsap = 0xaa; + snap->ssap = 0xaa; + snap->ctrl = 0x03; + + if (h_proto == htons(ETH_P_AARP) || h_proto == htons(ETH_P_IPX)) + oui = P802_1H_OUI; + else + oui = RFC1042_OUI; + snap->oui[0] = oui[0]; + snap->oui[1] = oui[1]; + snap->oui[2] = oui[2]; + + memcpy(data + SNAP_SIZE, &h_proto, sizeof(u16)); + + return SNAP_SIZE + sizeof(u16); +} + +static int libipw_encrypt_fragment(struct libipw_device *ieee, + struct sk_buff *frag, int hdr_len) +{ + struct lib80211_crypt_data *crypt = + ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx]; + int res; + + if (crypt == NULL) + return -1; + + /* To encrypt, frame format is: + * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */ + atomic_inc(&crypt->refcnt); + res = 0; + if (crypt->ops && crypt->ops->encrypt_mpdu) + res = crypt->ops->encrypt_mpdu(frag, hdr_len, crypt->priv); + + atomic_dec(&crypt->refcnt); + if (res < 0) { + printk(KERN_INFO "%s: Encryption failed: len=%d.\n", + ieee->dev->name, frag->len); + ieee->ieee_stats.tx_discards++; + return -1; + } + + return 0; +} + +void libipw_txb_free(struct libipw_txb *txb) +{ + int i; + if (unlikely(!txb)) + return; + for (i = 0; i < txb->nr_frags; i++) + if (txb->fragments[i]) + dev_kfree_skb_any(txb->fragments[i]); + kfree(txb); +} + +static struct libipw_txb *libipw_alloc_txb(int nr_frags, int txb_size, + int headroom, gfp_t gfp_mask) +{ + struct libipw_txb *txb; + int i; + + txb = kmalloc(struct_size(txb, fragments, nr_frags), gfp_mask); + if (!txb) + return NULL; + + memset(txb, 0, sizeof(struct libipw_txb)); + txb->nr_frags = nr_frags; + txb->frag_size = txb_size; + + for (i = 0; i < nr_frags; i++) { + txb->fragments[i] = __dev_alloc_skb(txb_size + headroom, + gfp_mask); + if (unlikely(!txb->fragments[i])) { + i--; + break; + } + skb_reserve(txb->fragments[i], headroom); + } + if (unlikely(i != nr_frags)) { + while (i >= 0) + dev_kfree_skb_any(txb->fragments[i--]); + kfree(txb); + return NULL; + } + return txb; +} + +static int libipw_classify(struct sk_buff *skb) +{ + struct ethhdr *eth; + struct iphdr *ip; + + eth = (struct ethhdr *)skb->data; + if (eth->h_proto != htons(ETH_P_IP)) + return 0; + + ip = ip_hdr(skb); + switch (ip->tos & 0xfc) { + case 0x20: + return 2; + case 0x40: + return 1; + case 0x60: + return 3; + case 0x80: + return 4; + case 0xa0: + return 5; + case 0xc0: + return 6; + case 0xe0: + return 7; + default: + return 0; + } +} + +/* Incoming skb is converted to a txb which consists of + * a block of 802.11 fragment packets (stored as skbs) */ +netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct libipw_device *ieee = netdev_priv(dev); + struct libipw_txb *txb = NULL; + struct libipw_hdr_3addrqos *frag_hdr; + int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size, + rts_required; + unsigned long flags; + int encrypt, host_encrypt, host_encrypt_msdu; + __be16 ether_type; + int bytes, fc, hdr_len; + struct sk_buff *skb_frag; + struct libipw_hdr_3addrqos header = {/* Ensure zero initialized */ + .duration_id = 0, + .seq_ctl = 0, + .qos_ctl = 0 + }; + u8 dest[ETH_ALEN], src[ETH_ALEN]; + struct lib80211_crypt_data *crypt; + int priority = skb->priority; + int snapped = 0; + + if (ieee->is_queue_full && (*ieee->is_queue_full) (dev, priority)) + return NETDEV_TX_BUSY; + + spin_lock_irqsave(&ieee->lock, flags); + + /* If there is no driver handler to take the TXB, dont' bother + * creating it... */ + if (!ieee->hard_start_xmit) { + printk(KERN_WARNING "%s: No xmit handler.\n", ieee->dev->name); + goto success; + } + + if (unlikely(skb->len < SNAP_SIZE + sizeof(u16))) { + printk(KERN_WARNING "%s: skb too small (%d).\n", + ieee->dev->name, skb->len); + goto success; + } + + ether_type = ((struct ethhdr *)skb->data)->h_proto; + + crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx]; + + encrypt = !(ether_type == htons(ETH_P_PAE) && ieee->ieee802_1x) && + ieee->sec.encrypt; + + host_encrypt = ieee->host_encrypt && encrypt && crypt; + host_encrypt_msdu = ieee->host_encrypt_msdu && encrypt && crypt; + + if (!encrypt && ieee->ieee802_1x && + ieee->drop_unencrypted && ether_type != htons(ETH_P_PAE)) { + dev->stats.tx_dropped++; + goto success; + } + + /* Save source and destination addresses */ + skb_copy_from_linear_data(skb, dest, ETH_ALEN); + skb_copy_from_linear_data_offset(skb, ETH_ALEN, src, ETH_ALEN); + + if (host_encrypt) + fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA | + IEEE80211_FCTL_PROTECTED; + else + fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA; + + if (ieee->iw_mode == IW_MODE_INFRA) { + fc |= IEEE80211_FCTL_TODS; + /* To DS: Addr1 = BSSID, Addr2 = SA, Addr3 = DA */ + memcpy(header.addr1, ieee->bssid, ETH_ALEN); + memcpy(header.addr2, src, ETH_ALEN); + memcpy(header.addr3, dest, ETH_ALEN); + } else if (ieee->iw_mode == IW_MODE_ADHOC) { + /* not From/To DS: Addr1 = DA, Addr2 = SA, Addr3 = BSSID */ + memcpy(header.addr1, dest, ETH_ALEN); + memcpy(header.addr2, src, ETH_ALEN); + memcpy(header.addr3, ieee->bssid, ETH_ALEN); + } + hdr_len = LIBIPW_3ADDR_LEN; + + if (ieee->is_qos_active && ieee->is_qos_active(dev, skb)) { + fc |= IEEE80211_STYPE_QOS_DATA; + hdr_len += 2; + + skb->priority = libipw_classify(skb); + header.qos_ctl |= cpu_to_le16(skb->priority & LIBIPW_QCTL_TID); + } + header.frame_ctl = cpu_to_le16(fc); + + /* Advance the SKB to the start of the payload */ + skb_pull(skb, sizeof(struct ethhdr)); + + /* Determine total amount of storage required for TXB packets */ + bytes = skb->len + SNAP_SIZE + sizeof(u16); + + /* Encrypt msdu first on the whole data packet. */ + if ((host_encrypt || host_encrypt_msdu) && + crypt && crypt->ops && crypt->ops->encrypt_msdu) { + int res = 0; + int len = bytes + hdr_len + crypt->ops->extra_msdu_prefix_len + + crypt->ops->extra_msdu_postfix_len; + struct sk_buff *skb_new = dev_alloc_skb(len); + + if (unlikely(!skb_new)) + goto failed; + + skb_reserve(skb_new, crypt->ops->extra_msdu_prefix_len); + skb_put_data(skb_new, &header, hdr_len); + snapped = 1; + libipw_copy_snap(skb_put(skb_new, SNAP_SIZE + sizeof(u16)), + ether_type); + skb_copy_from_linear_data(skb, skb_put(skb_new, skb->len), skb->len); + res = crypt->ops->encrypt_msdu(skb_new, hdr_len, crypt->priv); + if (res < 0) { + LIBIPW_ERROR("msdu encryption failed\n"); + dev_kfree_skb_any(skb_new); + goto failed; + } + dev_kfree_skb_any(skb); + skb = skb_new; + bytes += crypt->ops->extra_msdu_prefix_len + + crypt->ops->extra_msdu_postfix_len; + skb_pull(skb, hdr_len); + } + + if (host_encrypt || ieee->host_open_frag) { + /* Determine fragmentation size based on destination (multicast + * and broadcast are not fragmented) */ + if (is_multicast_ether_addr(dest) || + is_broadcast_ether_addr(dest)) + frag_size = MAX_FRAG_THRESHOLD; + else + frag_size = ieee->fts; + + /* Determine amount of payload per fragment. Regardless of if + * this stack is providing the full 802.11 header, one will + * eventually be affixed to this fragment -- so we must account + * for it when determining the amount of payload space. */ + bytes_per_frag = frag_size - hdr_len; + if (ieee->config & + (CFG_LIBIPW_COMPUTE_FCS | CFG_LIBIPW_RESERVE_FCS)) + bytes_per_frag -= LIBIPW_FCS_LEN; + + /* Each fragment may need to have room for encryption + * pre/postfix */ + if (host_encrypt && crypt && crypt->ops) + bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len + + crypt->ops->extra_mpdu_postfix_len; + + /* Number of fragments is the total + * bytes_per_frag / payload_per_fragment */ + nr_frags = bytes / bytes_per_frag; + bytes_last_frag = bytes % bytes_per_frag; + if (bytes_last_frag) + nr_frags++; + else + bytes_last_frag = bytes_per_frag; + } else { + nr_frags = 1; + bytes_per_frag = bytes_last_frag = bytes; + frag_size = bytes + hdr_len; + } + + rts_required = (frag_size > ieee->rts + && ieee->config & CFG_LIBIPW_RTS); + if (rts_required) + nr_frags++; + + /* When we allocate the TXB we allocate enough space for the reserve + * and full fragment bytes (bytes_per_frag doesn't include prefix, + * postfix, header, FCS, etc.) */ + txb = libipw_alloc_txb(nr_frags, frag_size, + ieee->tx_headroom, GFP_ATOMIC); + if (unlikely(!txb)) { + printk(KERN_WARNING "%s: Could not allocate TXB\n", + ieee->dev->name); + goto failed; + } + txb->encrypted = encrypt; + if (host_encrypt) + txb->payload_size = frag_size * (nr_frags - 1) + + bytes_last_frag; + else + txb->payload_size = bytes; + + if (rts_required) { + skb_frag = txb->fragments[0]; + frag_hdr = skb_put(skb_frag, hdr_len); + + /* + * Set header frame_ctl to the RTS. + */ + header.frame_ctl = + cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); + memcpy(frag_hdr, &header, hdr_len); + + /* + * Restore header frame_ctl to the original data setting. + */ + header.frame_ctl = cpu_to_le16(fc); + + if (ieee->config & + (CFG_LIBIPW_COMPUTE_FCS | CFG_LIBIPW_RESERVE_FCS)) + skb_put(skb_frag, 4); + + txb->rts_included = 1; + i = 1; + } else + i = 0; + + for (; i < nr_frags; i++) { + skb_frag = txb->fragments[i]; + + if (host_encrypt) + skb_reserve(skb_frag, + crypt->ops->extra_mpdu_prefix_len); + + frag_hdr = skb_put_data(skb_frag, &header, hdr_len); + + /* If this is not the last fragment, then add the MOREFRAGS + * bit to the frame control */ + if (i != nr_frags - 1) { + frag_hdr->frame_ctl = + cpu_to_le16(fc | IEEE80211_FCTL_MOREFRAGS); + bytes = bytes_per_frag; + } else { + /* The last fragment takes the remaining length */ + bytes = bytes_last_frag; + } + + if (i == 0 && !snapped) { + libipw_copy_snap(skb_put + (skb_frag, SNAP_SIZE + sizeof(u16)), + ether_type); + bytes -= SNAP_SIZE + sizeof(u16); + } + + skb_copy_from_linear_data(skb, skb_put(skb_frag, bytes), bytes); + + /* Advance the SKB... */ + skb_pull(skb, bytes); + + /* Encryption routine will move the header forward in order + * to insert the IV between the header and the payload */ + if (host_encrypt) + libipw_encrypt_fragment(ieee, skb_frag, hdr_len); + + if (ieee->config & + (CFG_LIBIPW_COMPUTE_FCS | CFG_LIBIPW_RESERVE_FCS)) + skb_put(skb_frag, 4); + } + + success: + spin_unlock_irqrestore(&ieee->lock, flags); + + dev_kfree_skb_any(skb); + + if (txb) { + netdev_tx_t ret = (*ieee->hard_start_xmit)(txb, dev, priority); + if (ret == NETDEV_TX_OK) { + dev->stats.tx_packets++; + dev->stats.tx_bytes += txb->payload_size; + return NETDEV_TX_OK; + } + + libipw_txb_free(txb); + } + + return NETDEV_TX_OK; + + failed: + spin_unlock_irqrestore(&ieee->lock, flags); + netif_stop_queue(dev); + dev->stats.tx_errors++; + return NETDEV_TX_BUSY; +} +EXPORT_SYMBOL(libipw_xmit); + +EXPORT_SYMBOL(libipw_txb_free); diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_wx.c b/drivers/net/wireless/intel/ipw2x00/libipw_wx.c new file mode 100644 index 000000000..903de3402 --- /dev/null +++ b/drivers/net/wireless/intel/ipw2x00/libipw_wx.c @@ -0,0 +1,726 @@ +// SPDX-License-Identifier: GPL-2.0-only +/****************************************************************************** + + Copyright(c) 2004-2005 Intel Corporation. All rights reserved. + + Portions of this file are based on the WEP enablement code provided by the + Host AP project hostap-drivers v0.1.3 + Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + <j@w1.fi> + Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> + + + Contact Information: + Intel Linux Wireless <ilw@linux.intel.com> + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ + +#include <linux/hardirq.h> +#include <linux/kmod.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/jiffies.h> + +#include <net/lib80211.h> +#include <linux/wireless.h> + +#include "libipw.h" + +static const char *libipw_modes[] = { + "?", "a", "b", "ab", "g", "ag", "bg", "abg" +}; + +static inline unsigned int elapsed_jiffies_msecs(unsigned long start) +{ + unsigned long end = jiffies; + + if (end >= start) + return jiffies_to_msecs(end - start); + + return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1); +} + +#define MAX_CUSTOM_LEN 64 +static char *libipw_translate_scan(struct libipw_device *ieee, + char *start, char *stop, + struct libipw_network *network, + struct iw_request_info *info) +{ + char custom[MAX_CUSTOM_LEN]; + char *p; + struct iw_event iwe; + int i, j; + char *current_val; /* For rates */ + u8 rate; + + /* First entry *MUST* be the AP MAC address */ + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN); + start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN); + + /* Remaining entries will be displayed in the order we provide them */ + + /* Add the ESSID */ + iwe.cmd = SIOCGIWESSID; + iwe.u.data.flags = 1; + iwe.u.data.length = min(network->ssid_len, (u8) 32); + start = iwe_stream_add_point(info, start, stop, + &iwe, network->ssid); + + /* Add the protocol name */ + iwe.cmd = SIOCGIWNAME; + snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s", + libipw_modes[network->mode]); + start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_CHAR_LEN); + + /* Add mode */ + iwe.cmd = SIOCGIWMODE; + if (network->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { + if (network->capability & WLAN_CAPABILITY_ESS) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_ADHOC; + + start = iwe_stream_add_event(info, start, stop, + &iwe, IW_EV_UINT_LEN); + } + + /* Add channel and frequency */ + /* Note : userspace automatically computes channel using iwrange */ + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.m = libipw_channel_to_freq(ieee, network->channel); + iwe.u.freq.e = 6; + iwe.u.freq.i = 0; + start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN); + + /* Add encryption capability */ + iwe.cmd = SIOCGIWENCODE; + if (network->capability & WLAN_CAPABILITY_PRIVACY) + iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + iwe.u.data.length = 0; + start = iwe_stream_add_point(info, start, stop, + &iwe, network->ssid); + + /* Add basic and extended rates */ + /* Rate : stuffing multiple values in a single event require a bit + * more of magic - Jean II */ + current_val = start + iwe_stream_lcp_len(info); + iwe.cmd = SIOCGIWRATE; + /* Those two flags are ignored... */ + iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; + + for (i = 0, j = 0; i < network->rates_len;) { + if (j < network->rates_ex_len && + ((network->rates_ex[j] & 0x7F) < + (network->rates[i] & 0x7F))) + rate = network->rates_ex[j++] & 0x7F; + else + rate = network->rates[i++] & 0x7F; + /* Bit rate given in 500 kb/s units (+ 0x80) */ + iwe.u.bitrate.value = ((rate & 0x7f) * 500000); + /* Add new value to event */ + current_val = iwe_stream_add_value(info, start, current_val, + stop, &iwe, IW_EV_PARAM_LEN); + } + for (; j < network->rates_ex_len; j++) { + rate = network->rates_ex[j] & 0x7F; + /* Bit rate given in 500 kb/s units (+ 0x80) */ + iwe.u.bitrate.value = ((rate & 0x7f) * 500000); + /* Add new value to event */ + current_val = iwe_stream_add_value(info, start, current_val, + stop, &iwe, IW_EV_PARAM_LEN); + } + /* Check if we added any rate */ + if ((current_val - start) > iwe_stream_lcp_len(info)) + start = current_val; + + /* Add quality statistics */ + iwe.cmd = IWEVQUAL; + iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | + IW_QUAL_NOISE_UPDATED; + + if (!(network->stats.mask & LIBIPW_STATMASK_RSSI)) { + iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID | + IW_QUAL_LEVEL_INVALID; + iwe.u.qual.qual = 0; + } else { + if (ieee->perfect_rssi == ieee->worst_rssi) + iwe.u.qual.qual = 100; + else + iwe.u.qual.qual = + (100 * + (ieee->perfect_rssi - ieee->worst_rssi) * + (ieee->perfect_rssi - ieee->worst_rssi) - + (ieee->perfect_rssi - network->stats.rssi) * + (15 * (ieee->perfect_rssi - ieee->worst_rssi) + + 62 * (ieee->perfect_rssi - + network->stats.rssi))) / + ((ieee->perfect_rssi - + ieee->worst_rssi) * (ieee->perfect_rssi - + ieee->worst_rssi)); + if (iwe.u.qual.qual > 100) + iwe.u.qual.qual = 100; + else if (iwe.u.qual.qual < 1) + iwe.u.qual.qual = 0; + } + + if (!(network->stats.mask & LIBIPW_STATMASK_NOISE)) { + iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID; + iwe.u.qual.noise = 0; + } else { + iwe.u.qual.noise = network->stats.noise; + } + + if (!(network->stats.mask & LIBIPW_STATMASK_SIGNAL)) { + iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID; + iwe.u.qual.level = 0; + } else { + iwe.u.qual.level = network->stats.signal; + } + + start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN); + + iwe.cmd = IWEVCUSTOM; + p = custom; + + iwe.u.data.length = p - custom; + if (iwe.u.data.length) + start = iwe_stream_add_point(info, start, stop, &iwe, custom); + + memset(&iwe, 0, sizeof(iwe)); + if (network->wpa_ie_len) { + char buf[MAX_WPA_IE_LEN]; + memcpy(buf, network->wpa_ie, network->wpa_ie_len); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = network->wpa_ie_len; + start = iwe_stream_add_point(info, start, stop, &iwe, buf); + } + + memset(&iwe, 0, sizeof(iwe)); + if (network->rsn_ie_len) { + char buf[MAX_WPA_IE_LEN]; + memcpy(buf, network->rsn_ie, network->rsn_ie_len); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = network->rsn_ie_len; + start = iwe_stream_add_point(info, start, stop, &iwe, buf); + } + + /* Add EXTRA: Age to display seconds since last beacon/probe response + * for given network. */ + iwe.cmd = IWEVCUSTOM; + p = custom; + p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), + " Last beacon: %ums ago", + elapsed_jiffies_msecs(network->last_scanned)); + iwe.u.data.length = p - custom; + if (iwe.u.data.length) + start = iwe_stream_add_point(info, start, stop, &iwe, custom); + + /* Add spectrum management information */ + iwe.cmd = -1; + p = custom; + p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), " Channel flags: "); + + if (libipw_get_channel_flags(ieee, network->channel) & + LIBIPW_CH_INVALID) { + iwe.cmd = IWEVCUSTOM; + p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), "INVALID "); + } + + if (libipw_get_channel_flags(ieee, network->channel) & + LIBIPW_CH_RADAR_DETECT) { + iwe.cmd = IWEVCUSTOM; + p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), "DFS "); + } + + if (iwe.cmd == IWEVCUSTOM) { + iwe.u.data.length = p - custom; + start = iwe_stream_add_point(info, start, stop, &iwe, custom); + } + + return start; +} + +#define SCAN_ITEM_SIZE 128 + +int libipw_wx_get_scan(struct libipw_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct libipw_network *network; + unsigned long flags; + int err = 0; + + char *ev = extra; + char *stop = ev + wrqu->data.length; + int i = 0; + + LIBIPW_DEBUG_WX("Getting scan\n"); + + spin_lock_irqsave(&ieee->lock, flags); + + list_for_each_entry(network, &ieee->network_list, list) { + i++; + if (stop - ev < SCAN_ITEM_SIZE) { + err = -E2BIG; + break; + } + + if (ieee->scan_age == 0 || + time_after(network->last_scanned + ieee->scan_age, jiffies)) + ev = libipw_translate_scan(ieee, ev, stop, network, + info); + else { + LIBIPW_DEBUG_SCAN("Not showing network '%*pE (%pM)' due to age (%ums).\n", + network->ssid_len, network->ssid, + network->bssid, + elapsed_jiffies_msecs( + network->last_scanned)); + } + } + + spin_unlock_irqrestore(&ieee->lock, flags); + + wrqu->data.length = ev - extra; + wrqu->data.flags = 0; + + LIBIPW_DEBUG_WX("exit: %d networks returned.\n", i); + + return err; +} + +int libipw_wx_set_encode(struct libipw_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *keybuf) +{ + struct iw_point *erq = &(wrqu->encoding); + struct net_device *dev = ieee->dev; + struct libipw_security sec = { + .flags = 0 + }; + int i, key, key_provided, len; + struct lib80211_crypt_data **crypt; + int host_crypto = ieee->host_encrypt || ieee->host_decrypt; + + LIBIPW_DEBUG_WX("SET_ENCODE\n"); + + key = erq->flags & IW_ENCODE_INDEX; + if (key) { + if (key > WEP_KEYS) + return -EINVAL; + key--; + key_provided = 1; + } else { + key_provided = 0; + key = ieee->crypt_info.tx_keyidx; + } + + LIBIPW_DEBUG_WX("Key: %d [%s]\n", key, key_provided ? + "provided" : "default"); + + crypt = &ieee->crypt_info.crypt[key]; + + if (erq->flags & IW_ENCODE_DISABLED) { + if (key_provided && *crypt) { + LIBIPW_DEBUG_WX("Disabling encryption on key %d.\n", + key); + lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); + } else + LIBIPW_DEBUG_WX("Disabling encryption.\n"); + + /* Check all the keys to see if any are still configured, + * and if no key index was provided, de-init them all */ + for (i = 0; i < WEP_KEYS; i++) { + if (ieee->crypt_info.crypt[i] != NULL) { + if (key_provided) + break; + lib80211_crypt_delayed_deinit(&ieee->crypt_info, + &ieee->crypt_info.crypt[i]); + } + } + + if (i == WEP_KEYS) { + sec.enabled = 0; + sec.encrypt = 0; + sec.level = SEC_LEVEL_0; + sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT; + } + + goto done; + } + + sec.enabled = 1; + sec.encrypt = 1; + sec.flags |= SEC_ENABLED | SEC_ENCRYPT; + + if (*crypt != NULL && (*crypt)->ops != NULL && + strcmp((*crypt)->ops->name, "WEP") != 0) { + /* changing to use WEP; deinit previously used algorithm + * on this key */ + lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); + } + + if (*crypt == NULL && host_crypto) { + struct lib80211_crypt_data *new_crypt; + + /* take WEP into use */ + new_crypt = kzalloc(sizeof(struct lib80211_crypt_data), + GFP_KERNEL); + if (new_crypt == NULL) + return -ENOMEM; + new_crypt->ops = lib80211_get_crypto_ops("WEP"); + if (!new_crypt->ops) { + request_module("lib80211_crypt_wep"); + new_crypt->ops = lib80211_get_crypto_ops("WEP"); + } + + if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) + new_crypt->priv = new_crypt->ops->init(key); + + if (!new_crypt->ops || !new_crypt->priv) { + kfree(new_crypt); + new_crypt = NULL; + + printk(KERN_WARNING "%s: could not initialize WEP: " + "load module lib80211_crypt_wep\n", dev->name); + return -EOPNOTSUPP; + } + *crypt = new_crypt; + } + + /* If a new key was provided, set it up */ + if (erq->length > 0) { + len = erq->length <= 5 ? 5 : 13; + memcpy(sec.keys[key], keybuf, erq->length); + if (len > erq->length) + memset(sec.keys[key] + erq->length, 0, + len - erq->length); + LIBIPW_DEBUG_WX("Setting key %d to '%*pE' (%d:%d bytes)\n", + key, len, sec.keys[key], + erq->length, len); + sec.key_sizes[key] = len; + if (*crypt) + (*crypt)->ops->set_key(sec.keys[key], len, NULL, + (*crypt)->priv); + sec.flags |= (1 << key); + /* This ensures a key will be activated if no key is + * explicitly set */ + if (key == sec.active_key) + sec.flags |= SEC_ACTIVE_KEY; + + } else { + if (host_crypto) { + len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN, + NULL, (*crypt)->priv); + if (len == 0) { + /* Set a default key of all 0 */ + LIBIPW_DEBUG_WX("Setting key %d to all " + "zero.\n", key); + memset(sec.keys[key], 0, 13); + (*crypt)->ops->set_key(sec.keys[key], 13, NULL, + (*crypt)->priv); + sec.key_sizes[key] = 13; + sec.flags |= (1 << key); + } + } + /* No key data - just set the default TX key index */ + if (key_provided) { + LIBIPW_DEBUG_WX("Setting key %d to default Tx " + "key.\n", key); + ieee->crypt_info.tx_keyidx = key; + sec.active_key = key; + sec.flags |= SEC_ACTIVE_KEY; + } + } + if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) { + ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); + sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : + WLAN_AUTH_SHARED_KEY; + sec.flags |= SEC_AUTH_MODE; + LIBIPW_DEBUG_WX("Auth: %s\n", + sec.auth_mode == WLAN_AUTH_OPEN ? + "OPEN" : "SHARED KEY"); + } + + /* For now we just support WEP, so only set that security level... + * TODO: When WPA is added this is one place that needs to change */ + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ + sec.encode_alg[key] = SEC_ALG_WEP; + + done: + if (ieee->set_security) + ieee->set_security(dev, &sec); + + return 0; +} + +int libipw_wx_get_encode(struct libipw_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *keybuf) +{ + struct iw_point *erq = &(wrqu->encoding); + int len, key; + struct libipw_security *sec = &ieee->sec; + + LIBIPW_DEBUG_WX("GET_ENCODE\n"); + + key = erq->flags & IW_ENCODE_INDEX; + if (key) { + if (key > WEP_KEYS) + return -EINVAL; + key--; + } else + key = ieee->crypt_info.tx_keyidx; + + erq->flags = key + 1; + + if (!sec->enabled) { + erq->length = 0; + erq->flags |= IW_ENCODE_DISABLED; + return 0; + } + + len = sec->key_sizes[key]; + memcpy(keybuf, sec->keys[key], len); + + erq->length = len; + erq->flags |= IW_ENCODE_ENABLED; + + if (ieee->open_wep) + erq->flags |= IW_ENCODE_OPEN; + else + erq->flags |= IW_ENCODE_RESTRICTED; + + return 0; +} + +int libipw_wx_set_encodeext(struct libipw_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct net_device *dev = ieee->dev; + struct iw_point *encoding = &wrqu->encoding; + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + int i, idx, ret = 0; + int group_key = 0; + const char *alg, *module; + struct lib80211_crypto_ops *ops; + struct lib80211_crypt_data **crypt; + + struct libipw_security sec = { + .flags = 0, + }; + + idx = encoding->flags & IW_ENCODE_INDEX; + if (idx) { + if (idx < 1 || idx > WEP_KEYS) + return -EINVAL; + idx--; + } else + idx = ieee->crypt_info.tx_keyidx; + + if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) { + crypt = &ieee->crypt_info.crypt[idx]; + group_key = 1; + } else { + /* some Cisco APs use idx>0 for unicast in dynamic WEP */ + if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP) + return -EINVAL; + if (ieee->iw_mode == IW_MODE_INFRA) + crypt = &ieee->crypt_info.crypt[idx]; + else + return -EINVAL; + } + + sec.flags |= SEC_ENABLED | SEC_ENCRYPT; + if ((encoding->flags & IW_ENCODE_DISABLED) || + ext->alg == IW_ENCODE_ALG_NONE) { + if (*crypt) + lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); + + for (i = 0; i < WEP_KEYS; i++) + if (ieee->crypt_info.crypt[i] != NULL) + break; + + if (i == WEP_KEYS) { + sec.enabled = 0; + sec.encrypt = 0; + sec.level = SEC_LEVEL_0; + sec.flags |= SEC_LEVEL; + } + goto done; + } + + sec.enabled = 1; + sec.encrypt = 1; + + if (group_key ? !ieee->host_mc_decrypt : + !(ieee->host_encrypt || ieee->host_decrypt || + ieee->host_encrypt_msdu)) + goto skip_host_crypt; + + switch (ext->alg) { + case IW_ENCODE_ALG_WEP: + alg = "WEP"; + module = "lib80211_crypt_wep"; + break; + case IW_ENCODE_ALG_TKIP: + alg = "TKIP"; + module = "lib80211_crypt_tkip"; + break; + case IW_ENCODE_ALG_CCMP: + alg = "CCMP"; + module = "lib80211_crypt_ccmp"; + break; + default: + LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n", + dev->name, ext->alg); + ret = -EINVAL; + goto done; + } + + ops = lib80211_get_crypto_ops(alg); + if (ops == NULL) { + request_module(module); + ops = lib80211_get_crypto_ops(alg); + } + if (ops == NULL) { + LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n", + dev->name, ext->alg); + ret = -EINVAL; + goto done; + } + + if (*crypt == NULL || (*crypt)->ops != ops) { + struct lib80211_crypt_data *new_crypt; + + lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt); + + new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); + if (new_crypt == NULL) { + ret = -ENOMEM; + goto done; + } + new_crypt->ops = ops; + if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) + new_crypt->priv = new_crypt->ops->init(idx); + if (new_crypt->priv == NULL) { + kfree(new_crypt); + ret = -EINVAL; + goto done; + } + *crypt = new_crypt; + } + + if (ext->key_len > 0 && (*crypt)->ops->set_key && + (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq, + (*crypt)->priv) < 0) { + LIBIPW_DEBUG_WX("%s: key setting failed\n", dev->name); + ret = -EINVAL; + goto done; + } + + skip_host_crypt: + if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { + ieee->crypt_info.tx_keyidx = idx; + sec.active_key = idx; + sec.flags |= SEC_ACTIVE_KEY; + } + + if (ext->alg != IW_ENCODE_ALG_NONE) { + int key_len = clamp_val(ext->key_len, 0, SCM_KEY_LEN); + + memcpy(sec.keys[idx], ext->key, key_len); + sec.key_sizes[idx] = key_len; + sec.flags |= (1 << idx); + if (ext->alg == IW_ENCODE_ALG_WEP) { + sec.encode_alg[idx] = SEC_ALG_WEP; + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; + } else if (ext->alg == IW_ENCODE_ALG_TKIP) { + sec.encode_alg[idx] = SEC_ALG_TKIP; + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_2; + } else if (ext->alg == IW_ENCODE_ALG_CCMP) { + sec.encode_alg[idx] = SEC_ALG_CCMP; + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_3; + } + /* Don't set sec level for group keys. */ + if (group_key) + sec.flags &= ~SEC_LEVEL; + } + done: + if (ieee->set_security) + ieee->set_security(dev, &sec); + + return ret; +} + +int libipw_wx_get_encodeext(struct libipw_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct iw_point *encoding = &wrqu->encoding; + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + struct libipw_security *sec = &ieee->sec; + int idx, max_key_len; + + max_key_len = encoding->length - sizeof(*ext); + if (max_key_len < 0) + return -EINVAL; + + idx = encoding->flags & IW_ENCODE_INDEX; + if (idx) { + if (idx < 1 || idx > WEP_KEYS) + return -EINVAL; + idx--; + } else + idx = ieee->crypt_info.tx_keyidx; + + if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) && + ext->alg != IW_ENCODE_ALG_WEP) + if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA) + return -EINVAL; + + encoding->flags = idx + 1; + memset(ext, 0, sizeof(*ext)); + + if (!sec->enabled) { + ext->alg = IW_ENCODE_ALG_NONE; + ext->key_len = 0; + encoding->flags |= IW_ENCODE_DISABLED; + } else { + if (sec->encode_alg[idx] == SEC_ALG_WEP) + ext->alg = IW_ENCODE_ALG_WEP; + else if (sec->encode_alg[idx] == SEC_ALG_TKIP) + ext->alg = IW_ENCODE_ALG_TKIP; + else if (sec->encode_alg[idx] == SEC_ALG_CCMP) + ext->alg = IW_ENCODE_ALG_CCMP; + else + return -EINVAL; + + ext->key_len = sec->key_sizes[idx]; + memcpy(ext->key, sec->keys[idx], ext->key_len); + encoding->flags |= IW_ENCODE_ENABLED; + if (ext->key_len && + (ext->alg == IW_ENCODE_ALG_TKIP || + ext->alg == IW_ENCODE_ALG_CCMP)) + ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID; + + } + + return 0; +} + +EXPORT_SYMBOL(libipw_wx_set_encodeext); +EXPORT_SYMBOL(libipw_wx_get_encodeext); + +EXPORT_SYMBOL(libipw_wx_get_scan); +EXPORT_SYMBOL(libipw_wx_set_encode); +EXPORT_SYMBOL(libipw_wx_get_encode); |