diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/staging/rtl8192u/r8192U_core.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/staging/rtl8192u/r8192U_core.c')
-rw-r--r-- | drivers/staging/rtl8192u/r8192U_core.c | 4800 |
1 files changed, 4800 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c new file mode 100644 index 000000000..0a60ef201 --- /dev/null +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -0,0 +1,4800 @@ +// SPDX-License-Identifier: GPL-2.0 +/****************************************************************************** + * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. + * Linux device driver for RTL8192U + * + * Based on the r8187 driver, which is: + * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al. + * + * Contact Information: + * Jerry chuang <wlanfae@realtek.com> + */ + +#ifndef CONFIG_FORCE_HARD_FLOAT +double __floatsidf(int i) +{ + return i; +} + +unsigned int __fixunsdfsi(double d) +{ + return d; +} + +double __adddf3(double a, double b) +{ + return a + b; +} + +double __addsf3(float a, float b) +{ + return a + b; +} + +double __subdf3(double a, double b) +{ + return a - b; +} + +double __extendsfdf2(float a) +{ + return a; +} +#endif + +#define CONFIG_RTL8192_IO_MAP + +#include <linux/uaccess.h> +#include "r8192U_hw.h" +#include "r8192U.h" +#include "r8190_rtl8256.h" /* RTL8225 Radio frontend */ +#include "r8180_93cx6.h" /* Card EEPROM */ +#include "r8192U_wx.h" +#include "r819xU_phy.h" +#include "r819xU_phyreg.h" +#include "r819xU_cmdpkt.h" +#include "r8192U_dm.h" +#include <linux/usb.h> +#include <linux/slab.h> +#include <linux/seq_file.h> +/* FIXME: check if 2.6.7 is ok */ + +#include "ieee80211/dot11d.h" +/* set here to open your trace code. */ +u32 rt_global_debug_component = COMP_DOWN | + COMP_SEC | + COMP_ERR; /* always open err flags on */ + +#define TOTAL_CAM_ENTRY 32 +#define CAM_CONTENT_COUNT 8 + +static const struct usb_device_id rtl8192_usb_id_tbl[] = { + /* Realtek */ + {USB_DEVICE(0x0bda, 0x8709)}, + /* Corega */ + {USB_DEVICE(0x07aa, 0x0043)}, + /* Belkin */ + {USB_DEVICE(0x050d, 0x805E)}, + /* Sitecom */ + {USB_DEVICE(0x0df6, 0x0031)}, + /* EnGenius */ + {USB_DEVICE(0x1740, 0x9201)}, + /* Dlink */ + {USB_DEVICE(0x2001, 0x3301)}, + /* Zinwell */ + {USB_DEVICE(0x5a57, 0x0290)}, + /* LG */ + {USB_DEVICE(0x043e, 0x7a01)}, + {} +}; + +MODULE_LICENSE("GPL"); +MODULE_VERSION("V 1.1"); +MODULE_DEVICE_TABLE(usb, rtl8192_usb_id_tbl); +MODULE_DESCRIPTION("Linux driver for Realtek RTL8192 USB WiFi cards"); + +static char *ifname = "wlan%d"; +static int hwwep = 1; /* default use hw. set 0 to use software security */ + +module_param(ifname, charp, 0644); +module_param(hwwep, int, 0644); + +MODULE_PARM_DESC(ifname, " Net interface name, wlan%d=default"); +MODULE_PARM_DESC(hwwep, " Try to use hardware security support. "); + +static int rtl8192_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id); +static void rtl8192_usb_disconnect(struct usb_interface *intf); + +static struct usb_driver rtl8192_usb_driver = { + .name = RTL819XU_MODULE_NAME, /* Driver name */ + .id_table = rtl8192_usb_id_tbl, /* PCI_ID table */ + .probe = rtl8192_usb_probe, /* probe fn */ + .disconnect = rtl8192_usb_disconnect, /* remove fn */ + .suspend = NULL, /* PM suspend fn */ + .resume = NULL, /* PM resume fn */ +}; + +struct CHANNEL_LIST { + u8 Channel[32]; + u8 Len; +}; + +static struct CHANNEL_LIST ChannelPlan[] = { + /* FCC */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165}, 24}, + /* IC */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11}, + /* ETSI */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64}, 21}, + /* Spain. Change to ETSI. */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, + /* France. Change to ETSI. */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, + /* MKK */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, + /* MKK1 */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, + /* Israel. */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13}, + /* For 11a , TELEC */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, + /* MIC */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52, 56, 60, 64}, 22}, + /* For Global Domain. 1-11:active scan, 12-14 passive scan. */ + {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14} +}; + +static void rtl819x_set_channel_map(u8 channel_plan, struct r8192_priv *priv) +{ + int i, max_chan = -1, min_chan = -1; + struct ieee80211_device *ieee = priv->ieee80211; + + switch (channel_plan) { + case COUNTRY_CODE_FCC: + case COUNTRY_CODE_IC: + case COUNTRY_CODE_ETSI: + case COUNTRY_CODE_SPAIN: + case COUNTRY_CODE_FRANCE: + case COUNTRY_CODE_MKK: + case COUNTRY_CODE_MKK1: + case COUNTRY_CODE_ISRAEL: + case COUNTRY_CODE_TELEC: + case COUNTRY_CODE_MIC: + rtl8192u_dot11d_init(ieee); + ieee->bGlobalDomain = false; + /* actually 8225 & 8256 rf chips only support B,G,24N mode */ + if ((priv->rf_chip == RF_8225) || (priv->rf_chip == RF_8256)) { + min_chan = 1; + max_chan = 14; + } else { + RT_TRACE(COMP_ERR, + "unknown rf chip, can't set channel map in function:%s()\n", + __func__); + } + if (ChannelPlan[channel_plan].Len != 0) { + /* Clear old channel map */ + memset(GET_DOT11D_INFO(ieee)->channel_map, 0, + sizeof(GET_DOT11D_INFO(ieee)->channel_map)); + /* Set new channel map */ + for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { + if (ChannelPlan[channel_plan].Channel[i] < min_chan || ChannelPlan[channel_plan].Channel[i] > max_chan) + break; + GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1; + } + } + break; + + case COUNTRY_CODE_GLOBAL_DOMAIN: + /* this flag enabled to follow 11d country IE setting, + * otherwise, it shall follow global domain settings. + */ + GET_DOT11D_INFO(ieee)->dot11d_enabled = 0; + dot11d_reset(ieee); + ieee->bGlobalDomain = true; + break; + + default: + break; + } +} + +static void CamResetAllEntry(struct net_device *dev) +{ + u32 ulcommand = 0; + /* In static WEP, OID_ADD_KEY or OID_ADD_WEP are set before STA + * associate to AP. However, ResetKey is called on + * OID_802_11_INFRASTRUCTURE_MODE and MlmeAssociateRequest. In this + * condition, Cam can not be reset because upper layer will not set + * this static key again. + */ + ulcommand |= BIT(31) | BIT(30); + write_nic_dword(dev, RWCAM, ulcommand); +} + +int write_nic_byte_E(struct net_device *dev, int indx, u8 data) +{ + int status; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + *usbdata = data; + + status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, + indx | 0xfe00, 0, usbdata, 1, 500); + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); + return status; + } + return 0; +} + +int read_nic_byte_E(struct net_device *dev, int indx, u8 *data) +{ + int status; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + + status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, + indx | 0xfe00, 0, usbdata, 1, 500); + *data = *usbdata; + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s failure status: %d\n", __func__, status); + return status; + } + + return 0; +} + +/* as 92U has extend page from 4 to 16, so modify functions below. */ +int write_nic_byte(struct net_device *dev, int indx, u8 data) +{ + int status; + + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + *usbdata = data; + + status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, + (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, + usbdata, 1, 500); + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); + return status; + } + + return 0; +} + +int write_nic_word(struct net_device *dev, int indx, u16 data) +{ + int status; + + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u16 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + *usbdata = data; + + status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, + (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, + usbdata, 2, 500); + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); + return status; + } + + return 0; +} + +int write_nic_dword(struct net_device *dev, int indx, u32 data) +{ + int status; + + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + *usbdata = data; + + status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE, + (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, + usbdata, 4, 500); + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s TimeOut! status: %d\n", __func__, status); + return status; + } + + return 0; +} + +int read_nic_byte(struct net_device *dev, int indx, u8 *data) +{ + int status; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u8 *usbdata = kzalloc(sizeof(u8), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + + status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, + (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, + usbdata, 1, 500); + *data = *usbdata; + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s failure status: %d\n", __func__, status); + return status; + } + + return 0; +} + +int read_nic_word(struct net_device *dev, int indx, u16 *data) +{ + int status; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + + status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, + (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, + usbdata, 2, 500); + *data = *usbdata; + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s failure status: %d\n", __func__, status); + return status; + } + + return 0; +} + +static int read_nic_word_E(struct net_device *dev, int indx, u16 *data) +{ + int status; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u16 *usbdata = kzalloc(sizeof(u16), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + + status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, + indx | 0xfe00, 0, usbdata, 2, 500); + *data = *usbdata; + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s failure status: %d\n", __func__, status); + return status; + } + + return 0; +} + +int read_nic_dword(struct net_device *dev, int indx, u32 *data) +{ + int status; + + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct usb_device *udev = priv->udev; + u32 *usbdata = kzalloc(sizeof(u32), GFP_KERNEL); + + if (!usbdata) + return -ENOMEM; + + status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + RTL8187_REQ_GET_REGS, RTL8187_REQT_READ, + (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f, + usbdata, 4, 500); + *data = *usbdata; + kfree(usbdata); + + if (status < 0) { + netdev_err(dev, "%s failure status: %d\n", __func__, status); + return status; + } + + return 0; +} + +/* u8 read_phy_cck(struct net_device *dev, u8 adr); */ +/* u8 read_phy_ofdm(struct net_device *dev, u8 adr); */ +/* this might still called in what was the PHY rtl8185/rtl8192 common code + * plans are to possibility turn it again in one common code... + */ +inline void force_pci_posting(struct net_device *dev) +{ +} + +static struct net_device_stats *rtl8192_stats(struct net_device *dev); +static void rtl8192_restart(struct work_struct *work); +static void watch_dog_timer_callback(struct timer_list *t); + +/**************************************************************************** + * -----------------------------MISC STUFF------------------------- + *****************************************************************************/ + +short check_nic_enough_desc(struct net_device *dev, int queue_index) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + int used = atomic_read(&priv->tx_pending[queue_index]); + + return (used < MAX_TX_URB); +} + +static void tx_timeout(struct net_device *dev, unsigned int txqueue) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + schedule_work(&priv->reset_wq); +} + +void rtl8192_update_msr(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u8 msr; + + read_nic_byte(dev, MSR, &msr); + msr &= ~MSR_LINK_MASK; + + /* do not change in link_state != WLAN_LINK_ASSOCIATED. + * msr must be updated if the state is ASSOCIATING. + * this is intentional and make sense for ad-hoc and + * master (see the create BSS/IBSS func) + */ + if (priv->ieee80211->state == IEEE80211_LINKED) { + if (priv->ieee80211->iw_mode == IW_MODE_INFRA) + msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT); + else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) + msr |= (MSR_LINK_ADHOC << MSR_LINK_SHIFT); + else if (priv->ieee80211->iw_mode == IW_MODE_MASTER) + msr |= (MSR_LINK_MASTER << MSR_LINK_SHIFT); + + } else { + msr |= (MSR_LINK_NONE << MSR_LINK_SHIFT); + } + + write_nic_byte(dev, MSR, msr); +} + +void rtl8192_set_chan(struct net_device *dev, short ch) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + + RT_TRACE(COMP_CH, "=====>%s()====ch:%d\n", __func__, ch); + priv->chan = ch; + + /* this hack should avoid frame TX during channel setting*/ + + /* need to implement rf set channel here */ + + if (priv->rf_set_chan) + priv->rf_set_chan(dev, priv->chan); + mdelay(10); +} + +static void rtl8192_rx_isr(struct urb *urb); + +static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) +{ + return (sizeof(struct rx_desc_819x_usb) + pstats->RxDrvInfoSize + + pstats->RxBufShift); +} + +void rtl8192_rx_enable(struct net_device *dev) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct urb *entry; + struct sk_buff *skb; + struct rtl8192_rx_info *info; + + /* nomal packet rx procedure */ + while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB) { + skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); + if (!skb) + break; + entry = usb_alloc_urb(0, GFP_KERNEL); + if (!entry) { + kfree_skb(skb); + break; + } + usb_fill_bulk_urb(entry, priv->udev, + usb_rcvbulkpipe(priv->udev, 3), + skb_tail_pointer(skb), + RX_URB_SIZE, rtl8192_rx_isr, skb); + info = (struct rtl8192_rx_info *)skb->cb; + info->urb = entry; + info->dev = dev; + info->out_pipe = 3; /* denote rx normal packet queue */ + skb_queue_tail(&priv->rx_queue, skb); + usb_submit_urb(entry, GFP_KERNEL); + } + + /* command packet rx procedure */ + while (skb_queue_len(&priv->rx_queue) < MAX_RX_URB + 3) { + skb = __dev_alloc_skb(RX_URB_SIZE, GFP_KERNEL); + if (!skb) + break; + entry = usb_alloc_urb(0, GFP_KERNEL); + if (!entry) { + kfree_skb(skb); + break; + } + usb_fill_bulk_urb(entry, priv->udev, + usb_rcvbulkpipe(priv->udev, 9), + skb_tail_pointer(skb), + RX_URB_SIZE, rtl8192_rx_isr, skb); + info = (struct rtl8192_rx_info *)skb->cb; + info->urb = entry; + info->dev = dev; + info->out_pipe = 9; /* denote rx cmd packet queue */ + skb_queue_tail(&priv->rx_queue, skb); + usb_submit_urb(entry, GFP_KERNEL); + } +} + +void rtl8192_set_rxconf(struct net_device *dev) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + u32 rxconf; + + read_nic_dword(dev, RCR, &rxconf); + rxconf = rxconf & ~MAC_FILTER_MASK; + rxconf = rxconf | RCR_AMF; + rxconf = rxconf | RCR_ADF; + rxconf = rxconf | RCR_AB; + rxconf = rxconf | RCR_AM; + + if (dev->flags & IFF_PROMISC) + DMESG("NIC in promisc mode"); + + if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || + dev->flags & IFF_PROMISC) { + rxconf = rxconf | RCR_AAP; + } else { + rxconf = rxconf | RCR_APM; + rxconf = rxconf | RCR_CBSSID; + } + + if (priv->ieee80211->iw_mode == IW_MODE_MONITOR) { + rxconf = rxconf | RCR_AICV; + rxconf = rxconf | RCR_APWRMGT; + } + + if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR) + rxconf = rxconf | RCR_ACRC32; + + rxconf = rxconf & ~RX_FIFO_THRESHOLD_MASK; + rxconf = rxconf | (RX_FIFO_THRESHOLD_NONE << RX_FIFO_THRESHOLD_SHIFT); + rxconf = rxconf & ~MAX_RX_DMA_MASK; + rxconf = rxconf | ((u32)7 << RCR_MXDMA_OFFSET); + + rxconf = rxconf | RCR_ONLYERLPKT; + + write_nic_dword(dev, RCR, rxconf); +} + +void rtl8192_rtx_disable(struct net_device *dev) +{ + u8 cmd; + struct r8192_priv *priv = ieee80211_priv(dev); + struct sk_buff *skb; + struct rtl8192_rx_info *info; + + read_nic_byte(dev, CMDR, &cmd); + write_nic_byte(dev, CMDR, cmd & ~(CR_TE | CR_RE)); + force_pci_posting(dev); + mdelay(10); + + while ((skb = __skb_dequeue(&priv->rx_queue))) { + info = (struct rtl8192_rx_info *)skb->cb; + if (!info->urb) + continue; + + usb_kill_urb(info->urb); + kfree_skb(skb); + } + + if (skb_queue_len(&priv->skb_queue)) + netdev_warn(dev, "skb_queue not empty\n"); + + skb_queue_purge(&priv->skb_queue); +} + +/* The prototype of rx_isr has changed since one version of Linux Kernel */ +static void rtl8192_rx_isr(struct urb *urb) +{ + struct sk_buff *skb = (struct sk_buff *)urb->context; + struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; + struct net_device *dev = info->dev; + struct r8192_priv *priv = ieee80211_priv(dev); + int out_pipe = info->out_pipe; + int err; + + if (!priv->up) + return; + + if (unlikely(urb->status)) { + info->urb = NULL; + priv->stats.rxstaterr++; + priv->ieee80211->stats.rx_errors++; + usb_free_urb(urb); + return; + } + skb_unlink(skb, &priv->rx_queue); + skb_put(skb, urb->actual_length); + + skb_queue_tail(&priv->skb_queue, skb); + tasklet_schedule(&priv->irq_rx_tasklet); + + skb = dev_alloc_skb(RX_URB_SIZE); + if (unlikely(!skb)) { + usb_free_urb(urb); + netdev_err(dev, "%s(): can't alloc skb\n", __func__); + /* TODO check rx queue length and refill *somewhere* */ + return; + } + + usb_fill_bulk_urb(urb, priv->udev, + usb_rcvbulkpipe(priv->udev, out_pipe), + skb_tail_pointer(skb), + RX_URB_SIZE, rtl8192_rx_isr, skb); + + info = (struct rtl8192_rx_info *)skb->cb; + info->urb = urb; + info->dev = dev; + info->out_pipe = out_pipe; + + urb->transfer_buffer = skb_tail_pointer(skb); + urb->context = skb; + skb_queue_tail(&priv->rx_queue, skb); + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err && err != -EPERM) + netdev_err(dev, + "can not submit rxurb, err is %x, URB status is %x\n", + err, urb->status); +} + +static u32 rtl819xusb_rx_command_packet(struct net_device *dev, + struct ieee80211_rx_stats *pstats) +{ + u32 status; + + status = cmpk_message_handle_rx(dev, pstats); + if (status) + DMESG("rxcommandpackethandle819xusb: It is a command packet\n"); + + return status; +} + +static void rtl8192_data_hard_stop(struct net_device *dev) +{ + /* FIXME !! */ +} + +static void rtl8192_data_hard_resume(struct net_device *dev) +{ + /* FIXME !! */ +} + +/* this function TX data frames when the ieee80211 stack requires this. + * It checks also if we need to stop the ieee tx queue, eventually do it + */ +static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, + int rate) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + unsigned long flags; + struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); + u8 queue_index = tcb_desc->queue_index; + + /* shall not be referred by command packet */ + RTL8192U_ASSERT(queue_index != TXCMD_QUEUE); + + spin_lock_irqsave(&priv->tx_lock, flags); + + *(struct net_device **)(skb->cb) = dev; + tcb_desc->bTxEnableFwCalcDur = 1; + skb_push(skb, priv->ieee80211->tx_headroom); + rtl8192_tx(dev, skb); + + spin_unlock_irqrestore(&priv->tx_lock, flags); +} + +/* This is a rough attempt to TX a frame + * This is called by the ieee 80211 stack to TX management frames. + * If the ring is full packet are dropped (for data frame the queue + * is stopped before this can happen). + */ +static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + int ret; + unsigned long flags; + struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); + u8 queue_index = tcb_desc->queue_index; + + spin_lock_irqsave(&priv->tx_lock, flags); + + memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); + if (queue_index == TXCMD_QUEUE) { + skb_push(skb, USB_HWDESC_HEADER_LEN); + rtl819xU_tx_cmd(dev, skb); + ret = 1; + } else { + skb_push(skb, priv->ieee80211->tx_headroom); + ret = rtl8192_tx(dev, skb); + } + + spin_unlock_irqrestore(&priv->tx_lock, flags); + + return ret; +} + +static void rtl8192_tx_isr(struct urb *tx_urb) +{ + struct sk_buff *skb = (struct sk_buff *)tx_urb->context; + struct net_device *dev; + struct r8192_priv *priv = NULL; + struct cb_desc *tcb_desc; + u8 queue_index; + + if (!skb) + return; + + dev = *(struct net_device **)(skb->cb); + tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); + queue_index = tcb_desc->queue_index; + + priv = ieee80211_priv(dev); + + if (tcb_desc->queue_index != TXCMD_QUEUE) { + if (tx_urb->status == 0) { + netif_trans_update(dev); + priv->stats.txoktotal++; + priv->ieee80211->LinkDetectInfo.NumTxOkInPeriod++; + priv->stats.txbytesunicast += + (skb->len - priv->ieee80211->tx_headroom); + } else { + priv->ieee80211->stats.tx_errors++; + /* TODO */ + } + } + + /* free skb and tx_urb */ + dev_kfree_skb_any(skb); + usb_free_urb(tx_urb); + atomic_dec(&priv->tx_pending[queue_index]); + + /* + * Handle HW Beacon: + * We had transfer our beacon frame to host controller at this moment. + * + * + * Caution: + * Handling the wait queue of command packets. + * For Tx command packets, we must not do TCB fragment because it is + * not handled right now. We must cut the packets to match the size of + * TX_CMD_PKT before we send it. + */ + + /* Handle MPDU in wait queue. */ + if (queue_index != BEACON_QUEUE) { + /* Don't send data frame during scanning.*/ + if ((skb_queue_len(&priv->ieee80211->skb_waitQ[queue_index]) != 0) && + (!(priv->ieee80211->queue_stop))) { + skb = skb_dequeue(&(priv->ieee80211->skb_waitQ[queue_index])); + if (skb) + priv->ieee80211->softmac_hard_start_xmit(skb, + dev); + + return; /* avoid further processing AMSDU */ + } + } +} + +static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + struct ieee80211_network *net; + u8 i = 0, basic_rate = 0; + + net = &priv->ieee80211->current_network; + + for (i = 0; i < net->rates_len; i++) { + basic_rate = net->rates[i] & 0x7f; + switch (basic_rate) { + case MGN_1M: + *rate_config |= RRSR_1M; + break; + case MGN_2M: + *rate_config |= RRSR_2M; + break; + case MGN_5_5M: + *rate_config |= RRSR_5_5M; + break; + case MGN_11M: + *rate_config |= RRSR_11M; + break; + case MGN_6M: + *rate_config |= RRSR_6M; + break; + case MGN_9M: + *rate_config |= RRSR_9M; + break; + case MGN_12M: + *rate_config |= RRSR_12M; + break; + case MGN_18M: + *rate_config |= RRSR_18M; + break; + case MGN_24M: + *rate_config |= RRSR_24M; + break; + case MGN_36M: + *rate_config |= RRSR_36M; + break; + case MGN_48M: + *rate_config |= RRSR_48M; + break; + case MGN_54M: + *rate_config |= RRSR_54M; + break; + } + } + for (i = 0; i < net->rates_ex_len; i++) { + basic_rate = net->rates_ex[i] & 0x7f; + switch (basic_rate) { + case MGN_1M: + *rate_config |= RRSR_1M; + break; + case MGN_2M: + *rate_config |= RRSR_2M; + break; + case MGN_5_5M: + *rate_config |= RRSR_5_5M; + break; + case MGN_11M: + *rate_config |= RRSR_11M; + break; + case MGN_6M: + *rate_config |= RRSR_6M; + break; + case MGN_9M: + *rate_config |= RRSR_9M; + break; + case MGN_12M: + *rate_config |= RRSR_12M; + break; + case MGN_18M: + *rate_config |= RRSR_18M; + break; + case MGN_24M: + *rate_config |= RRSR_24M; + break; + case MGN_36M: + *rate_config |= RRSR_36M; + break; + case MGN_48M: + *rate_config |= RRSR_48M; + break; + case MGN_54M: + *rate_config |= RRSR_54M; + break; + } + } +} + +#define SHORT_SLOT_TIME 9 +#define NON_SHORT_SLOT_TIME 20 + +static void rtl8192_update_cap(struct net_device *dev, u16 cap) +{ + u32 tmp = 0; + struct r8192_priv *priv = ieee80211_priv(dev); + struct ieee80211_network *net = &priv->ieee80211->current_network; + + priv->short_preamble = cap & WLAN_CAPABILITY_SHORT_PREAMBLE; + tmp = priv->basic_rate; + if (priv->short_preamble) + tmp |= BRSR_AckShortPmb; + write_nic_dword(dev, RRSR, tmp); + + if (net->mode & (IEEE_G | IEEE_N_24G)) { + u8 slot_time = 0; + + if ((cap & WLAN_CAPABILITY_SHORT_SLOT) && + (!priv->ieee80211->pHTInfo->bCurrentRT2RTLongSlotTime)) + /* short slot time */ + slot_time = SHORT_SLOT_TIME; + else /* long slot time */ + slot_time = NON_SHORT_SLOT_TIME; + priv->slot_time = slot_time; + write_nic_byte(dev, SLOT_TIME, slot_time); + } +} + +static void rtl8192_net_update(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + struct ieee80211_network *net; + u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf; + u16 rate_config = 0; + + net = &priv->ieee80211->current_network; + + rtl8192_config_rate(dev, &rate_config); + priv->basic_rate = rate_config & 0x15f; + + write_nic_dword(dev, BSSIDR, ((u32 *)net->bssid)[0]); + write_nic_word(dev, BSSIDR + 4, ((u16 *)net->bssid)[2]); + + rtl8192_update_msr(dev); + if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) { + write_nic_word(dev, ATIMWND, 2); + write_nic_word(dev, BCN_DMATIME, 1023); + write_nic_word(dev, BCN_INTERVAL, net->beacon_interval); + write_nic_word(dev, BCN_DRV_EARLY_INT, 1); + write_nic_byte(dev, BCN_ERR_THRESH, 100); + BcnTimeCfg |= (BcnCW << BCN_TCFG_CW_SHIFT); + /* TODO: BcnIFS may required to be changed on ASIC */ + BcnTimeCfg |= BcnIFS << BCN_TCFG_IFS; + + write_nic_word(dev, BCN_TCFG, BcnTimeCfg); + } +} + +/* temporary hw beacon is not used any more. + * open it when necessary + */ +void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate) +{ +} + +short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + int status; + struct urb *tx_urb; + unsigned int idx_pipe; + struct tx_desc_cmd_819x_usb *pdesc = (struct tx_desc_cmd_819x_usb *)skb->data; + struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); + u8 queue_index = tcb_desc->queue_index; + + atomic_inc(&priv->tx_pending[queue_index]); + tx_urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!tx_urb) { + dev_kfree_skb(skb); + return -ENOMEM; + } + + memset(pdesc, 0, USB_HWDESC_HEADER_LEN); + /* Tx descriptor ought to be set according to the skb->cb */ + pdesc->FirstSeg = 1; + pdesc->LastSeg = 1; + pdesc->CmdInit = tcb_desc->bCmdOrInit; + pdesc->TxBufferSize = tcb_desc->txbuf_size; + pdesc->OWN = 1; + pdesc->LINIP = tcb_desc->bLastIniPkt; + + /*--------------------------------------------------------------------- + * Fill up USB_OUT_CONTEXT. + *--------------------------------------------------------------------- + */ + idx_pipe = 0x04; + usb_fill_bulk_urb(tx_urb, priv->udev, + usb_sndbulkpipe(priv->udev, idx_pipe), + skb->data, skb->len, rtl8192_tx_isr, skb); + + status = usb_submit_urb(tx_urb, GFP_ATOMIC); + + if (!status) + return 0; + + DMESGE("Error TX CMD URB, error %d", status); + dev_kfree_skb(skb); + usb_free_urb(tx_urb); + return -1; +} + +/* + * Mapping Software/Hardware descriptor queue id to "Queue Select Field" + * in TxFwInfo data structure + * 2006.10.30 by Emily + * + * \param QUEUEID Software Queue + */ +static u8 MapHwQueueToFirmwareQueue(u8 QueueID) +{ + u8 QueueSelect = 0x0; /* default set to */ + + switch (QueueID) { + case BE_QUEUE: + QueueSelect = QSLT_BE; + break; + + case BK_QUEUE: + QueueSelect = QSLT_BK; + break; + + case VO_QUEUE: + QueueSelect = QSLT_VO; + break; + + case VI_QUEUE: + QueueSelect = QSLT_VI; + break; + case MGNT_QUEUE: + QueueSelect = QSLT_MGNT; + break; + + case BEACON_QUEUE: + QueueSelect = QSLT_BEACON; + break; + + /* TODO: mark other queue selection until we verify it is OK */ + /* TODO: Remove Assertions */ + case TXCMD_QUEUE: + QueueSelect = QSLT_CMD; + break; + case HIGH_QUEUE: + QueueSelect = QSLT_HIGH; + break; + + default: + RT_TRACE(COMP_ERR, + "TransmitTCB(): Impossible Queue Selection: %d\n", + QueueID); + break; + } + return QueueSelect; +} + +static u8 MRateToHwRate8190Pci(u8 rate) +{ + u8 ret = DESC90_RATE1M; + + switch (rate) { + case MGN_1M: + ret = DESC90_RATE1M; + break; + case MGN_2M: + ret = DESC90_RATE2M; + break; + case MGN_5_5M: + ret = DESC90_RATE5_5M; + break; + case MGN_11M: + ret = DESC90_RATE11M; + break; + case MGN_6M: + ret = DESC90_RATE6M; + break; + case MGN_9M: + ret = DESC90_RATE9M; + break; + case MGN_12M: + ret = DESC90_RATE12M; + break; + case MGN_18M: + ret = DESC90_RATE18M; + break; + case MGN_24M: + ret = DESC90_RATE24M; + break; + case MGN_36M: + ret = DESC90_RATE36M; + break; + case MGN_48M: + ret = DESC90_RATE48M; + break; + case MGN_54M: + ret = DESC90_RATE54M; + break; + + /* HT rate since here */ + case MGN_MCS0: + ret = DESC90_RATEMCS0; + break; + case MGN_MCS1: + ret = DESC90_RATEMCS1; + break; + case MGN_MCS2: + ret = DESC90_RATEMCS2; + break; + case MGN_MCS3: + ret = DESC90_RATEMCS3; + break; + case MGN_MCS4: + ret = DESC90_RATEMCS4; + break; + case MGN_MCS5: + ret = DESC90_RATEMCS5; + break; + case MGN_MCS6: + ret = DESC90_RATEMCS6; + break; + case MGN_MCS7: + ret = DESC90_RATEMCS7; + break; + case MGN_MCS8: + ret = DESC90_RATEMCS8; + break; + case MGN_MCS9: + ret = DESC90_RATEMCS9; + break; + case MGN_MCS10: + ret = DESC90_RATEMCS10; + break; + case MGN_MCS11: + ret = DESC90_RATEMCS11; + break; + case MGN_MCS12: + ret = DESC90_RATEMCS12; + break; + case MGN_MCS13: + ret = DESC90_RATEMCS13; + break; + case MGN_MCS14: + ret = DESC90_RATEMCS14; + break; + case MGN_MCS15: + ret = DESC90_RATEMCS15; + break; + case (0x80 | 0x20): + ret = DESC90_RATEMCS32; + break; + + default: + break; + } + return ret; +} + +static u8 QueryIsShort(u8 TxHT, u8 TxRate, struct cb_desc *tcb_desc) +{ + u8 tmp_Short; + + tmp_Short = (TxHT == 1) ? + ((tcb_desc->bUseShortGI) ? 1 : 0) : + ((tcb_desc->bUseShortPreamble) ? 1 : 0); + + if (TxHT == 1 && TxRate != DESC90_RATEMCS15) + tmp_Short = 0; + + return tmp_Short; +} + +static void tx_zero_isr(struct urb *tx_urb) +{ +} + +/* + * The tx procedure is just as following, + * skb->cb will contain all the following information, + * priority, morefrag, rate, &dev. + */ +short rtl8192_tx(struct net_device *dev, struct sk_buff *skb) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); + struct tx_desc_819x_usb *tx_desc = (struct tx_desc_819x_usb *)skb->data; + struct tx_fwinfo_819x_usb *tx_fwinfo = + (struct tx_fwinfo_819x_usb *)(skb->data + USB_HWDESC_HEADER_LEN); + struct usb_device *udev = priv->udev; + int pend; + int status, rt = -1; + struct urb *tx_urb = NULL, *tx_urb_zero = NULL; + unsigned int idx_pipe; + + pend = atomic_read(&priv->tx_pending[tcb_desc->queue_index]); + /* we are locked here so the two atomic_read and inc are executed + * without interleaves + * !!! For debug purpose + */ + if (pend > MAX_TX_URB) { + netdev_dbg(dev, "To discard skb packet!\n"); + dev_kfree_skb_any(skb); + return -1; + } + + tx_urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!tx_urb) { + dev_kfree_skb_any(skb); + return -ENOMEM; + } + + /* Fill Tx firmware info */ + memset(tx_fwinfo, 0, sizeof(struct tx_fwinfo_819x_usb)); + /* DWORD 0 */ + tx_fwinfo->TxHT = (tcb_desc->data_rate & 0x80) ? 1 : 0; + tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate); + tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur; + tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate, + tcb_desc); + if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */ + tx_fwinfo->AllowAggregation = 1; + /* DWORD 1 */ + tx_fwinfo->RxMF = tcb_desc->ampdu_factor; + tx_fwinfo->RxAMD = tcb_desc->ampdu_density & 0x07; + } else { + tx_fwinfo->AllowAggregation = 0; + /* DWORD 1 */ + tx_fwinfo->RxMF = 0; + tx_fwinfo->RxAMD = 0; + } + + /* Protection mode related */ + tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0; + tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0; + tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0; + tx_fwinfo->RtsHT = (tcb_desc->rts_rate & 0x80) ? 1 : 0; + tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate); + tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0; + tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0; + tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) : + (tcb_desc->bRTSUseShortGI ? 1 : 0); + + /* Set Bandwidth and sub-channel settings. */ + if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) { + if (tcb_desc->bPacketBW) { + tx_fwinfo->TxBandwidth = 1; + /* use duplicated mode */ + tx_fwinfo->TxSubCarrier = 0; + } else { + tx_fwinfo->TxBandwidth = 0; + tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC; + } + } else { + tx_fwinfo->TxBandwidth = 0; + tx_fwinfo->TxSubCarrier = 0; + } + + /* Fill Tx descriptor */ + memset(tx_desc, 0, sizeof(struct tx_desc_819x_usb)); + /* DWORD 0 */ + tx_desc->LINIP = 0; + tx_desc->CmdInit = 1; + tx_desc->Offset = sizeof(struct tx_fwinfo_819x_usb) + 8; + tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff; + + /*DWORD 1*/ + tx_desc->SecCAMID = 0; + tx_desc->RATid = tcb_desc->RATRIndex; + tx_desc->NoEnc = 1; + tx_desc->SecType = 0x0; + if (tcb_desc->bHwSec) { + switch (priv->ieee80211->pairwise_key_type) { + case KEY_TYPE_WEP40: + case KEY_TYPE_WEP104: + tx_desc->SecType = 0x1; + tx_desc->NoEnc = 0; + break; + case KEY_TYPE_TKIP: + tx_desc->SecType = 0x2; + tx_desc->NoEnc = 0; + break; + case KEY_TYPE_CCMP: + tx_desc->SecType = 0x3; + tx_desc->NoEnc = 0; + break; + case KEY_TYPE_NA: + tx_desc->SecType = 0x0; + tx_desc->NoEnc = 1; + break; + } + } + + tx_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index); + tx_desc->TxFWInfoSize = sizeof(struct tx_fwinfo_819x_usb); + + tx_desc->DISFB = tcb_desc->bTxDisableRateFallBack; + tx_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate; + + /* Fill fields that are required to be initialized in + * all of the descriptors + */ + /* DWORD 0 */ + tx_desc->FirstSeg = 1; + tx_desc->LastSeg = 1; + tx_desc->OWN = 1; + + /* DWORD 2 */ + tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN); + idx_pipe = 0x5; + + /* To submit bulk urb */ + usb_fill_bulk_urb(tx_urb, udev, + usb_sndbulkpipe(udev, idx_pipe), skb->data, + skb->len, rtl8192_tx_isr, skb); + + status = usb_submit_urb(tx_urb, GFP_ATOMIC); + if (!status) { + /* We need to send 0 byte packet whenever + * 512N bytes/64N(HIGN SPEED/NORMAL SPEED) bytes packet has + * been transmitted. Otherwise, it will be halt to wait for + * another packet. + */ + bool bSend0Byte = false; + u8 zero = 0; + + if (udev->speed == USB_SPEED_HIGH) { + if (skb->len > 0 && skb->len % 512 == 0) + bSend0Byte = true; + } else { + if (skb->len > 0 && skb->len % 64 == 0) + bSend0Byte = true; + } + if (bSend0Byte) { + tx_urb_zero = usb_alloc_urb(0, GFP_ATOMIC); + if (!tx_urb_zero) { + rt = -ENOMEM; + goto error; + } + usb_fill_bulk_urb(tx_urb_zero, udev, + usb_sndbulkpipe(udev, idx_pipe), + &zero, 0, tx_zero_isr, dev); + status = usb_submit_urb(tx_urb_zero, GFP_ATOMIC); + if (status) { + RT_TRACE(COMP_ERR, + "Error TX URB for zero byte %d, error %d", + atomic_read(&priv->tx_pending[tcb_desc->queue_index]), + status); + goto error; + } + } + netif_trans_update(dev); + atomic_inc(&priv->tx_pending[tcb_desc->queue_index]); + return 0; + } + + RT_TRACE(COMP_ERR, "Error TX URB %d, error %d", + atomic_read(&priv->tx_pending[tcb_desc->queue_index]), + status); + +error: + dev_kfree_skb_any(skb); + usb_free_urb(tx_urb); + usb_free_urb(tx_urb_zero); + return rt; +} + +static short rtl8192_usb_initendpoints(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + priv->rx_urb = kmalloc_array(MAX_RX_URB + 1, sizeof(struct urb *), + GFP_KERNEL); + if (!priv->rx_urb) + return -ENOMEM; + +#ifndef JACKSON_NEW_RX + for (i = 0; i < (MAX_RX_URB + 1); i++) { + priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); + if (!priv->rx_urb[i]) + return -ENOMEM; + + priv->rx_urb[i]->transfer_buffer = + kmalloc(RX_URB_SIZE, GFP_KERNEL); + if (!priv->rx_urb[i]->transfer_buffer) + return -ENOMEM; + + priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE; + } +#endif + +#ifdef THOMAS_BEACON + { + long align = 0; + void *oldaddr, *newaddr; + + priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL); + if (!priv->rx_urb[16]) + return -ENOMEM; + priv->oldaddr = kmalloc(16, GFP_KERNEL); + if (!priv->oldaddr) + return -ENOMEM; + oldaddr = priv->oldaddr; + align = ((long)oldaddr) & 3; + if (align) { + newaddr = oldaddr + 4 - align; + priv->rx_urb[16]->transfer_buffer_length = 16 - 4 + align; + } else { + newaddr = oldaddr; + priv->rx_urb[16]->transfer_buffer_length = 16; + } + priv->rx_urb[16]->transfer_buffer = newaddr; + } +#endif + + memset(priv->rx_urb, 0, sizeof(struct urb *) * MAX_RX_URB); + priv->pp_rxskb = kcalloc(MAX_RX_URB, sizeof(struct sk_buff *), + GFP_KERNEL); + if (!priv->pp_rxskb) { + kfree(priv->rx_urb); + + priv->pp_rxskb = NULL; + priv->rx_urb = NULL; + + DMESGE("Endpoint Alloc Failure"); + return -ENOMEM; + } + + netdev_dbg(dev, "End of initendpoints\n"); + return 0; +} + +#ifdef THOMAS_BEACON +static void rtl8192_usb_deleteendpoints(struct net_device *dev) +{ + int i; + struct r8192_priv *priv = ieee80211_priv(dev); + + if (priv->rx_urb) { + for (i = 0; i < (MAX_RX_URB + 1); i++) { + usb_kill_urb(priv->rx_urb[i]); + usb_free_urb(priv->rx_urb[i]); + } + kfree(priv->rx_urb); + priv->rx_urb = NULL; + } + kfree(priv->oldaddr); + priv->oldaddr = NULL; + + kfree(priv->pp_rxskb); + priv->pp_rxskb = NULL; +} +#else +void rtl8192_usb_deleteendpoints(struct net_device *dev) +{ + int i; + struct r8192_priv *priv = ieee80211_priv(dev); + +#ifndef JACKSON_NEW_RX + + if (priv->rx_urb) { + for (i = 0; i < (MAX_RX_URB + 1); i++) { + usb_kill_urb(priv->rx_urb[i]); + kfree(priv->rx_urb[i]->transfer_buffer); + usb_free_urb(priv->rx_urb[i]); + } + kfree(priv->rx_urb); + priv->rx_urb = NULL; + } +#else + kfree(priv->rx_urb); + priv->rx_urb = NULL; + kfree(priv->oldaddr); + priv->oldaddr = NULL; + + kfree(priv->pp_rxskb); + priv->pp_rxskb = 0; + +#endif +} +#endif + +static void rtl8192_update_ratr_table(struct net_device *dev); +static void rtl8192_link_change(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee80211; + + if (ieee->state == IEEE80211_LINKED) { + rtl8192_net_update(dev); + rtl8192_update_ratr_table(dev); + /* Add this as in pure N mode, wep encryption will use software + * way, but there is no chance to set this as wep will not set + * group key in wext. + */ + if (ieee->pairwise_key_type == KEY_TYPE_WEP40 || + ieee->pairwise_key_type == KEY_TYPE_WEP104) + EnableHWSecurityConfig8192(dev); + } + /*update timing params*/ + if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) { + u32 reg = 0; + + read_nic_dword(dev, RCR, ®); + if (priv->ieee80211->state == IEEE80211_LINKED) + priv->ReceiveConfig = reg |= RCR_CBSSID; + else + priv->ReceiveConfig = reg &= ~RCR_CBSSID; + write_nic_dword(dev, RCR, reg); + } +} + +static const struct ieee80211_qos_parameters def_qos_parameters = { + {cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3), cpu_to_le16(3)}, + {cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7), cpu_to_le16(7)}, + {2, 2, 2, 2},/* aifs */ + {0, 0, 0, 0},/* flags */ + {0, 0, 0, 0} /* tx_op_limit */ +}; + +static void rtl8192_update_beacon(struct work_struct *work) +{ + struct r8192_priv *priv = container_of(work, struct r8192_priv, + update_beacon_wq.work); + struct net_device *dev = priv->ieee80211->dev; + struct ieee80211_device *ieee = priv->ieee80211; + struct ieee80211_network *net = &ieee->current_network; + + if (ieee->pHTInfo->bCurrentHTSupport) + HTUpdateSelfAndPeerSetting(ieee, net); + ieee->pHTInfo->bCurrentRT2RTLongSlotTime = + net->bssht.bdRT2RTLongSlotTime; + rtl8192_update_cap(dev, net->capability); +} + +/* + * background support to run QoS activate functionality + */ +static int WDCAPARA_ADD[] = {EDCAPARA_BE, EDCAPARA_BK, + EDCAPARA_VI, EDCAPARA_VO}; +static void rtl8192_qos_activate(struct work_struct *work) +{ + struct r8192_priv *priv = container_of(work, struct r8192_priv, + qos_activate); + struct net_device *dev = priv->ieee80211->dev; + struct ieee80211_qos_parameters *qos_parameters = + &priv->ieee80211->current_network.qos_data.parameters; + u8 mode = priv->ieee80211->current_network.mode; + u32 u1bAIFS; + u32 u4bAcParam; + u32 op_limit; + u32 cw_max; + u32 cw_min; + int i; + + mutex_lock(&priv->mutex); + if (priv->ieee80211->state != IEEE80211_LINKED) + goto success; + RT_TRACE(COMP_QOS, + "qos active process with associate response received\n"); + /* It better set slot time at first + * + * For we just support b/g mode at present, let the slot time at + * 9/20 selection + * + * update the ac parameter to related registers + */ + for (i = 0; i < QOS_QUEUE_NUM; i++) { + /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ + u1bAIFS = qos_parameters->aifs[i] * ((mode & (IEEE_G | IEEE_N_24G)) ? 9 : 20) + aSifsTime; + u1bAIFS <<= AC_PARAM_AIFS_OFFSET; + op_limit = (u32)le16_to_cpu(qos_parameters->tx_op_limit[i]); + op_limit <<= AC_PARAM_TXOP_LIMIT_OFFSET; + cw_max = (u32)le16_to_cpu(qos_parameters->cw_max[i]); + cw_max <<= AC_PARAM_ECW_MAX_OFFSET; + cw_min = (u32)le16_to_cpu(qos_parameters->cw_min[i]); + cw_min <<= AC_PARAM_ECW_MIN_OFFSET; + u4bAcParam = op_limit | cw_max | cw_min | u1bAIFS; + write_nic_dword(dev, WDCAPARA_ADD[i], u4bAcParam); + } + +success: + mutex_unlock(&priv->mutex); +} + +static int rtl8192_qos_handle_probe_response(struct r8192_priv *priv, + int active_network, + struct ieee80211_network *network) +{ + int ret = 0; + u32 size = sizeof(struct ieee80211_qos_parameters); + + if (priv->ieee80211->state != IEEE80211_LINKED) + return ret; + + if (priv->ieee80211->iw_mode != IW_MODE_INFRA) + return ret; + + 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); + RT_TRACE(COMP_QOS, + "QoS parameters change call qos_activate\n"); + } + } else { + memcpy(&priv->ieee80211->current_network.qos_data.parameters, + &def_qos_parameters, size); + + if ((network->qos_data.active == 1) && (active_network == 1)) { + schedule_work(&priv->qos_activate); + RT_TRACE(COMP_QOS, + "QoS was disabled call qos_activate\n"); + } + network->qos_data.active = 0; + network->qos_data.supported = 0; + } + + return 0; +} + +/* handle and manage frame from beacon and probe response */ +static int rtl8192_handle_beacon(struct net_device *dev, + struct ieee80211_beacon *beacon, + struct ieee80211_network *network) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + rtl8192_qos_handle_probe_response(priv, 1, network); + schedule_delayed_work(&priv->update_beacon_wq, 0); + return 0; +} + +/* + * handling the beaconing responses. if we get different QoS setting + * off the network from the associated setting, adjust the QoS + * setting + */ +static int rtl8192_qos_association_resp(struct r8192_priv *priv, + struct ieee80211_network *network) +{ + unsigned long flags; + u32 size = sizeof(struct ieee80211_qos_parameters); + int set_qos_param = 0; + + if (!priv || !network) + return 0; + + if (priv->ieee80211->state != IEEE80211_LINKED) + return 0; + + if (priv->ieee80211->iw_mode != IW_MODE_INFRA) + return 0; + + spin_lock_irqsave(&priv->ieee80211->lock, flags); + if (network->flags & NETWORK_HAS_QOS_PARAMETERS) { + memcpy(&priv->ieee80211->current_network.qos_data.parameters, + &network->qos_data.parameters, + sizeof(struct ieee80211_qos_parameters)); + priv->ieee80211->current_network.qos_data.active = 1; + set_qos_param = 1; + /* update qos parameter for current network */ + priv->ieee80211->current_network.qos_data.old_param_count = + priv->ieee80211->current_network.qos_data.param_count; + priv->ieee80211->current_network.qos_data.param_count = + network->qos_data.param_count; + } else { + memcpy(&priv->ieee80211->current_network.qos_data.parameters, + &def_qos_parameters, size); + priv->ieee80211->current_network.qos_data.active = 0; + priv->ieee80211->current_network.qos_data.supported = 0; + set_qos_param = 1; + } + + spin_unlock_irqrestore(&priv->ieee80211->lock, flags); + + RT_TRACE(COMP_QOS, "%s: network->flags = %d,%d\n", __func__, + network->flags, + priv->ieee80211->current_network.qos_data.active); + if (set_qos_param == 1) + schedule_work(&priv->qos_activate); + + return 0; +} + +static int rtl8192_handle_assoc_response(struct net_device *dev, + struct ieee80211_assoc_response_frame *resp, + struct ieee80211_network *network) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + rtl8192_qos_association_resp(priv, network); + return 0; +} + +static void rtl8192_update_ratr_table(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee80211; + u8 *pMcsRate = ieee->dot11HTOperationalRateSet; + u32 ratr_value = 0; + u8 rate_index = 0; + + rtl8192_config_rate(dev, (u16 *)(&ratr_value)); + ratr_value |= (*(u16 *)(pMcsRate)) << 12; + switch (ieee->mode) { + case IEEE_A: + ratr_value &= 0x00000FF0; + break; + case IEEE_B: + ratr_value &= 0x0000000F; + break; + case IEEE_G: + ratr_value &= 0x00000FF7; + break; + case IEEE_N_24G: + case IEEE_N_5G: + if (ieee->pHTInfo->PeerMimoPs == MIMO_PS_STATIC) { + ratr_value &= 0x0007F007; + } else { + if (priv->rf_type == RF_1T2R) + ratr_value &= 0x000FF007; + else + ratr_value &= 0x0F81F007; + } + break; + default: + break; + } + ratr_value &= 0x0FFFFFFF; + if (ieee->pHTInfo->bCurTxBW40MHz && ieee->pHTInfo->bCurShortGI40MHz) + ratr_value |= 0x80000000; + else if (!ieee->pHTInfo->bCurTxBW40MHz && + ieee->pHTInfo->bCurShortGI20MHz) + ratr_value |= 0x80000000; + write_nic_dword(dev, RATR0 + rate_index * 4, ratr_value); + write_nic_byte(dev, UFWP, 1); +} + +static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04}; +static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04}; +static bool GetNmodeSupportBySecCfg8192(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee80211; + struct ieee80211_network *network = &ieee->current_network; + int wpa_ie_len = ieee->wpa_ie_len; + struct ieee80211_crypt_data *crypt; + int encrypt; + + crypt = ieee->crypt[ieee->tx_keyidx]; + /* we use connecting AP's capability instead of only security config + * on our driver to distinguish whether it should use N mode or G mode + */ + encrypt = (network->capability & WLAN_CAPABILITY_PRIVACY) || + (ieee->host_encrypt && crypt && crypt->ops && + (strcmp(crypt->ops->name, "WEP") == 0)); + + /* simply judge */ + if (encrypt && (wpa_ie_len == 0)) { + /* wep encryption, no N mode setting */ + return false; + } else if ((wpa_ie_len != 0)) { + /* parse pairwise key type */ + if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) || ((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4)))) + return true; + else + return false; + } else { + return true; + } + + return true; +} + +static bool GetHalfNmodeSupportByAPs819xUsb(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + return priv->ieee80211->bHalfWirelessN24GMode; +} + +static void rtl8192_refresh_supportrate(struct r8192_priv *priv) +{ + struct ieee80211_device *ieee = priv->ieee80211; + /* We do not consider set support rate for ABG mode, only + * HT MCS rate is set here. + */ + if (ieee->mode == WIRELESS_MODE_N_24G || + ieee->mode == WIRELESS_MODE_N_5G) + memcpy(ieee->Regdot11HTOperationalRateSet, + ieee->RegHTSuppRateSet, 16); + else + memset(ieee->Regdot11HTOperationalRateSet, 0, 16); +} + +static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u8 ret = 0; + + switch (priv->rf_chip) { + case RF_8225: + case RF_8256: + case RF_PSEUDO_11N: + ret = WIRELESS_MODE_N_24G | WIRELESS_MODE_G | WIRELESS_MODE_B; + break; + case RF_8258: + ret = WIRELESS_MODE_A | WIRELESS_MODE_N_5G; + break; + default: + ret = WIRELESS_MODE_B; + break; + } + return ret; +} + +static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u8 bSupportMode = rtl8192_getSupportedWireleeMode(dev); + + if (wireless_mode == WIRELESS_MODE_AUTO || + (wireless_mode & bSupportMode) == 0) { + if (bSupportMode & WIRELESS_MODE_N_24G) { + wireless_mode = WIRELESS_MODE_N_24G; + } else if (bSupportMode & WIRELESS_MODE_N_5G) { + wireless_mode = WIRELESS_MODE_N_5G; + } else if ((bSupportMode & WIRELESS_MODE_A)) { + wireless_mode = WIRELESS_MODE_A; + } else if ((bSupportMode & WIRELESS_MODE_G)) { + wireless_mode = WIRELESS_MODE_G; + } else if ((bSupportMode & WIRELESS_MODE_B)) { + wireless_mode = WIRELESS_MODE_B; + } else { + RT_TRACE(COMP_ERR, + "%s(), No valid wireless mode supported, SupportedWirelessMode(%x)!!!\n", + __func__, bSupportMode); + wireless_mode = WIRELESS_MODE_B; + } + } + priv->ieee80211->mode = wireless_mode; + + if (wireless_mode == WIRELESS_MODE_N_24G || + wireless_mode == WIRELESS_MODE_N_5G) + priv->ieee80211->pHTInfo->bEnableHT = 1; + else + priv->ieee80211->pHTInfo->bEnableHT = 0; + RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); + rtl8192_refresh_supportrate(priv); +} + +/* init priv variables here. only non_zero value should be initialized here. */ +static int rtl8192_init_priv_variable(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u8 i; + + priv->card_8192 = NIC_8192U; + priv->chan = 1; /* set to channel 1 */ + priv->ieee80211->mode = WIRELESS_MODE_AUTO; /* SET AUTO */ + priv->ieee80211->iw_mode = IW_MODE_INFRA; + priv->ieee80211->ieee_up = 0; + priv->retry_rts = DEFAULT_RETRY_RTS; + priv->retry_data = DEFAULT_RETRY_DATA; + priv->ieee80211->rts = DEFAULT_RTS_THRESHOLD; + priv->ieee80211->rate = 110; /* 11 mbps */ + priv->ieee80211->short_slot = 1; + priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; + priv->CckPwEnl = 6; + /* for silent reset */ + priv->IrpPendingCount = 1; + priv->ResetProgress = RESET_TYPE_NORESET; + priv->bForcedSilentReset = false; + priv->bDisableNormalResetCheck = false; + priv->force_reset = false; + + /* we don't use FW read/write RF until stable firmware is available. */ + priv->ieee80211->FwRWRF = 0; + priv->ieee80211->current_network.beacon_interval = + DEFAULT_BEACONINTERVAL; + priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | + IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | + IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE | + IEEE_SOFTMAC_BEACONS; + + priv->ieee80211->active_scan = 1; + priv->ieee80211->modulation = + IEEE80211_CCK_MODULATION | IEEE80211_OFDM_MODULATION; + priv->ieee80211->host_encrypt = 1; + priv->ieee80211->host_decrypt = 1; + priv->ieee80211->start_send_beacons = NULL; + priv->ieee80211->stop_send_beacons = NULL; + priv->ieee80211->softmac_hard_start_xmit = rtl8192_hard_start_xmit; + priv->ieee80211->set_chan = rtl8192_set_chan; + priv->ieee80211->link_change = rtl8192_link_change; + priv->ieee80211->softmac_data_hard_start_xmit = rtl8192_hard_data_xmit; + priv->ieee80211->data_hard_stop = rtl8192_data_hard_stop; + priv->ieee80211->data_hard_resume = rtl8192_data_hard_resume; + priv->ieee80211->init_wmmparam_flag = 0; + priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; + priv->ieee80211->check_nic_enough_desc = check_nic_enough_desc; + priv->ieee80211->tx_headroom = TX_PACKET_SHIFT_BYTES; + priv->ieee80211->qos_support = 1; + + priv->ieee80211->SetBWModeHandler = rtl8192_SetBWMode; + priv->ieee80211->handle_assoc_response = rtl8192_handle_assoc_response; + priv->ieee80211->handle_beacon = rtl8192_handle_beacon; + + priv->ieee80211->GetNmodeSupportBySecCfg = GetNmodeSupportBySecCfg8192; + priv->ieee80211->GetHalfNmodeSupportByAPsHandler = + GetHalfNmodeSupportByAPs819xUsb; + priv->ieee80211->SetWirelessMode = rtl8192_SetWirelessMode; + + priv->ieee80211->InitialGainHandler = InitialGain819xUsb; + priv->card_type = USB; + priv->ShortRetryLimit = 0x30; + priv->LongRetryLimit = 0x30; + priv->EarlyRxThreshold = 7; + priv->enable_gpio0 = 0; + priv->TransmitConfig = + /* Max DMA Burst Size per Tx DMA Burst, 7: reserved. */ + (TCR_MXDMA_2048 << TCR_MXDMA_OFFSET) | + /* Short retry limit */ + (priv->ShortRetryLimit << TCR_SRL_OFFSET) | + /* Long retry limit */ + (priv->LongRetryLimit << TCR_LRL_OFFSET) | + /* FALSE: HW provides PLCP length and LENGEXT + * TRUE: SW provides them + */ + (false ? TCR_SAT : 0); + priv->ReceiveConfig = + /* accept management/data */ + RCR_AMF | RCR_ADF | + /* accept control frame for SW AP needs PS-poll */ + RCR_ACF | + /* accept BC/MC/UC */ + RCR_AB | RCR_AM | RCR_APM | + /* Max DMA Burst Size per Rx DMA Burst, 7: unlimited. */ + ((u32)7 << RCR_MXDMA_OFFSET) | + /* Rx FIFO Threshold, 7: No Rx threshold. */ + (priv->EarlyRxThreshold << RX_FIFO_THRESHOLD_SHIFT) | + (priv->EarlyRxThreshold == 7 ? RCR_ONLYERLPKT : 0); + + priv->AcmControl = 0; + priv->pFirmware = kzalloc(sizeof(rt_firmware), GFP_KERNEL); + if (!priv->pFirmware) + return -ENOMEM; + + /* rx related queue */ + skb_queue_head_init(&priv->rx_queue); + skb_queue_head_init(&priv->skb_queue); + + /* Tx related queue */ + for (i = 0; i < MAX_QUEUE_SIZE; i++) + skb_queue_head_init(&priv->ieee80211->skb_waitQ[i]); + for (i = 0; i < MAX_QUEUE_SIZE; i++) + skb_queue_head_init(&priv->ieee80211->skb_aggQ[i]); + for (i = 0; i < MAX_QUEUE_SIZE; i++) + skb_queue_head_init(&priv->ieee80211->skb_drv_aggQ[i]); + priv->rf_set_chan = rtl8192_phy_SwChnl; + + return 0; +} + +/* init lock here */ +static void rtl8192_init_priv_lock(struct r8192_priv *priv) +{ + spin_lock_init(&priv->tx_lock); + spin_lock_init(&priv->irq_lock); + mutex_init(&priv->wx_mutex); + mutex_init(&priv->mutex); +} + +static void rtl819x_watchdog_wqcallback(struct work_struct *work); + +static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t); +/* init tasklet and wait_queue here. only 2.6 above kernel is considered */ +#define DRV_NAME "wlan0" +static void rtl8192_init_priv_task(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + INIT_WORK(&priv->reset_wq, rtl8192_restart); + + INIT_DELAYED_WORK(&priv->watch_dog_wq, + rtl819x_watchdog_wqcallback); + INIT_DELAYED_WORK(&priv->txpower_tracking_wq, + dm_txpower_trackingcallback); + INIT_DELAYED_WORK(&priv->rfpath_check_wq, + dm_rf_pathcheck_workitemcallback); + INIT_DELAYED_WORK(&priv->update_beacon_wq, + rtl8192_update_beacon); + INIT_DELAYED_WORK(&priv->initialgain_operate_wq, + InitialGainOperateWorkItemCallBack); + INIT_WORK(&priv->qos_activate, rtl8192_qos_activate); + + tasklet_setup(&priv->irq_rx_tasklet, rtl8192_irq_rx_tasklet); +} + +static void rtl8192_get_eeprom_size(struct net_device *dev) +{ + u16 curCR = 0; + struct r8192_priv *priv = ieee80211_priv(dev); + + RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); + read_nic_word_E(dev, EPROM_CMD, &curCR); + RT_TRACE(COMP_EPROM, + "read from Reg EPROM_CMD(%x):%x\n", EPROM_CMD, curCR); + /* whether need I consider BIT(5?) */ + priv->epromtype = + (curCR & Cmd9346CR_9356SEL) ? EPROM_93c56 : EPROM_93c46; + RT_TRACE(COMP_EPROM, + "<===========%s(), epromtype:%d\n", __func__, priv->epromtype); +} + +/* used to swap endian. as ntohl & htonl are not necessary + * to swap endian, so use this instead. + */ +static inline u16 endian_swap(u16 *data) +{ + u16 tmp = *data; + *data = (tmp >> 8) | (tmp << 8); + return *data; +} + +static int rtl8192_read_eeprom_info(struct net_device *dev) +{ + u16 wEPROM_ID = 0; + u8 bMac_Tmp_Addr[6] = {0x00, 0xe0, 0x4c, 0x00, 0x00, 0x02}; + u8 bLoad_From_EEPOM = false; + struct r8192_priv *priv = ieee80211_priv(dev); + u16 tmpValue = 0; + int i; + int ret; + + RT_TRACE(COMP_EPROM, "===========>%s()\n", __func__); + ret = eprom_read(dev, 0); /* first read EEPROM ID out; */ + if (ret < 0) + return ret; + wEPROM_ID = (u16)ret; + RT_TRACE(COMP_EPROM, "EEPROM ID is 0x%x\n", wEPROM_ID); + + if (wEPROM_ID != RTL8190_EEPROM_ID) + RT_TRACE(COMP_ERR, + "EEPROM ID is invalid(is 0x%x(should be 0x%x)\n", + wEPROM_ID, RTL8190_EEPROM_ID); + else + bLoad_From_EEPOM = true; + + if (bLoad_From_EEPOM) { + tmpValue = eprom_read(dev, EEPROM_VID >> 1); + ret = eprom_read(dev, EEPROM_VID >> 1); + if (ret < 0) + return ret; + tmpValue = (u16)ret; + priv->eeprom_vid = endian_swap(&tmpValue); + ret = eprom_read(dev, EEPROM_PID >> 1); + if (ret < 0) + return ret; + priv->eeprom_pid = (u16)ret; + ret = eprom_read(dev, EEPROM_CHANNEL_PLAN >> 1); + if (ret < 0) + return ret; + tmpValue = (u16)ret; + priv->eeprom_ChannelPlan = (tmpValue & 0xff00) >> 8; + priv->btxpowerdata_readfromEEPORM = true; + ret = eprom_read(dev, (EEPROM_CUSTOMER_ID >> 1)) >> 8; + if (ret < 0) + return ret; + priv->eeprom_CustomerID = (u16)ret; + } else { + priv->eeprom_vid = 0; + priv->eeprom_pid = 0; + priv->card_8192_version = VERSION_819XU_B; + priv->eeprom_ChannelPlan = 0; + priv->eeprom_CustomerID = 0; + } + RT_TRACE(COMP_EPROM, + "vid:0x%4x, pid:0x%4x, CustomID:0x%2x, ChanPlan:0x%x\n", + priv->eeprom_vid, priv->eeprom_pid, priv->eeprom_CustomerID, + priv->eeprom_ChannelPlan); + /* set channelplan from eeprom */ + priv->ChannelPlan = priv->eeprom_ChannelPlan; + if (bLoad_From_EEPOM) { + u8 addr[ETH_ALEN]; + + for (i = 0; i < 6; i += 2) { + ret = eprom_read(dev, (u16)((EEPROM_NODE_ADDRESS_BYTE_0 + i) >> 1)); + if (ret < 0) + return ret; + *(u16 *)(&addr[i]) = (u16)ret; + } + eth_hw_addr_set(dev, addr); + } else { + eth_hw_addr_set(dev, bMac_Tmp_Addr); + /* should I set IDR0 here? */ + } + RT_TRACE(COMP_EPROM, "MAC addr:%pM\n", dev->dev_addr); + priv->rf_type = RTL819X_DEFAULT_RF_TYPE; /* default 1T2R */ + priv->rf_chip = RF_8256; + + if (priv->card_8192_version == VERSION_819XU_A) { + /* read Tx power gain offset of legacy OFDM to HT rate */ + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_TX_POWER_DIFF >> 1)); + if (ret < 0) + return ret; + priv->EEPROMTxPowerDiff = ((u16)ret & 0xff00) >> 8; + } else + priv->EEPROMTxPowerDiff = EEPROM_DEFAULT_TX_POWER; + RT_TRACE(COMP_EPROM, "TxPowerDiff:%d\n", priv->EEPROMTxPowerDiff); + /* read ThermalMeter from EEPROM */ + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_THERMAL_METER >> 1)); + if (ret < 0) + return ret; + priv->EEPROMThermalMeter = (u8)((u16)ret & 0x00ff); + } else + priv->EEPROMThermalMeter = EEPROM_DEFAULT_THERNAL_METER; + RT_TRACE(COMP_EPROM, "ThermalMeter:%d\n", priv->EEPROMThermalMeter); + /* for tx power track */ + priv->TSSI_13dBm = priv->EEPROMThermalMeter * 100; + /* read antenna tx power offset of B/C/D to A from EEPROM */ + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_PW_DIFF >> 1)); + if (ret < 0) + return ret; + priv->EEPROMPwDiff = ((u16)ret & 0x0f00) >> 8; + } else + priv->EEPROMPwDiff = EEPROM_DEFAULT_PW_DIFF; + RT_TRACE(COMP_EPROM, "TxPwDiff:%d\n", priv->EEPROMPwDiff); + /* Read CrystalCap from EEPROM */ + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_CRYSTAL_CAP >> 1)); + if (ret < 0) + return ret; + priv->EEPROMCrystalCap = (u16)ret & 0x0f; + } else + priv->EEPROMCrystalCap = EEPROM_DEFAULT_CRYSTAL_CAP; + RT_TRACE(COMP_EPROM, "CrystalCap = %d\n", priv->EEPROMCrystalCap); + /* get per-channel Tx power level */ + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_VER >> 1)); + if (ret < 0) + return ret; + priv->EEPROM_Def_Ver = ((u16)ret & 0xff00) >> 8; + } else + priv->EEPROM_Def_Ver = 1; + RT_TRACE(COMP_EPROM, "EEPROM_DEF_VER:%d\n", priv->EEPROM_Def_Ver); + if (priv->EEPROM_Def_Ver == 0) { /* old eeprom definition */ + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK >> 1)); + if (ret < 0) + return ret; + priv->EEPROMTxPowerLevelCCK = ((u16)ret & 0xff00) >> 8; + } else + priv->EEPROMTxPowerLevelCCK = 0x10; + RT_TRACE(COMP_EPROM, "CCK Tx Power Levl: 0x%02x\n", priv->EEPROMTxPowerLevelCCK); + for (i = 0; i < 3; i++) { + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G + i) >> 1); + if (ret < 0) + return ret; + if (((EEPROM_TX_PW_INDEX_OFDM_24G + i) % 2) == 0) + tmpValue = (u16)ret & 0x00ff; + else + tmpValue = ((u16)ret & 0xff00) >> 8; + } else { + tmpValue = 0x10; + } + priv->EEPROMTxPowerLevelOFDM24G[i] = (u8)tmpValue; + RT_TRACE(COMP_EPROM, "OFDM 2.4G Tx Power Level, Index %d = 0x%02x\n", i, priv->EEPROMTxPowerLevelCCK); + } + } else if (priv->EEPROM_Def_Ver == 1) { + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, EEPROM_TX_PW_INDEX_CCK_V1 >> 1); + if (ret < 0) + return ret; + tmpValue = ((u16)ret & 0xff00) >> 8; + } else { + tmpValue = 0x10; + } + priv->EEPROMTxPowerLevelCCK_V1[0] = (u8)tmpValue; + + if (bLoad_From_EEPOM) { + ret = eprom_read(dev, (EEPROM_TX_PW_INDEX_CCK_V1 + 2) >> 1); + if (ret < 0) + return ret; + tmpValue = (u16)ret; + } else + tmpValue = 0x1010; + *((u16 *)(&priv->EEPROMTxPowerLevelCCK_V1[1])) = tmpValue; + if (bLoad_From_EEPOM) + tmpValue = eprom_read(dev, + EEPROM_TX_PW_INDEX_OFDM_24G_V1 >> 1); + else + tmpValue = 0x1010; + *((u16 *)(&priv->EEPROMTxPowerLevelOFDM24G[0])) = tmpValue; + if (bLoad_From_EEPOM) + tmpValue = eprom_read(dev, (EEPROM_TX_PW_INDEX_OFDM_24G_V1 + 2) >> 1); + else + tmpValue = 0x10; + priv->EEPROMTxPowerLevelOFDM24G[2] = (u8)tmpValue; + } /* endif EEPROM_Def_Ver == 1 */ + + /* update HAL variables */ + for (i = 0; i < 14; i++) { + if (i <= 3) + priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[0]; + else if (i >= 4 && i <= 9) + priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[1]; + else + priv->TxPowerLevelOFDM24G[i] = priv->EEPROMTxPowerLevelOFDM24G[2]; + } + + for (i = 0; i < 14; i++) { + if (priv->EEPROM_Def_Ver == 0) { + if (i <= 3) + priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[0] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); + else if (i >= 4 && i <= 9) + priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK; + else + priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelOFDM24G[2] + (priv->EEPROMTxPowerLevelCCK - priv->EEPROMTxPowerLevelOFDM24G[1]); + } else if (priv->EEPROM_Def_Ver == 1) { + if (i <= 3) + priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[0]; + else if (i >= 4 && i <= 9) + priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[1]; + else + priv->TxPowerLevelCCK[i] = priv->EEPROMTxPowerLevelCCK_V1[2]; + } + } + priv->TxPowerDiff = priv->EEPROMPwDiff; + /* Antenna B gain offset to antenna A, bit0~3 */ + priv->AntennaTxPwDiff[0] = (priv->EEPROMTxPowerDiff & 0xf); + /* Antenna C gain offset to antenna A, bit4~7 */ + priv->AntennaTxPwDiff[1] = + (priv->EEPROMTxPowerDiff & 0xf0) >> 4; + /* CrystalCap, bit12~15 */ + priv->CrystalCap = priv->EEPROMCrystalCap; + /* ThermalMeter, bit0~3 for RFIC1, bit4~7 for RFIC2 + * 92U does not enable TX power tracking. + */ + priv->ThermalMeter[0] = priv->EEPROMThermalMeter; + } /* end if VersionID == VERSION_819XU_A */ + + /* for dlink led */ + switch (priv->eeprom_CustomerID) { + case EEPROM_CID_RUNTOP: + priv->CustomerID = RT_CID_819x_RUNTOP; + break; + + case EEPROM_CID_DLINK: + priv->CustomerID = RT_CID_DLINK; + break; + + default: + priv->CustomerID = RT_CID_DEFAULT; + break; + } + + switch (priv->CustomerID) { + case RT_CID_819x_RUNTOP: + priv->LedStrategy = SW_LED_MODE2; + break; + + case RT_CID_DLINK: + priv->LedStrategy = SW_LED_MODE4; + break; + + default: + priv->LedStrategy = SW_LED_MODE0; + break; + } + + if (priv->rf_type == RF_1T2R) + RT_TRACE(COMP_EPROM, "\n1T2R config\n"); + else + RT_TRACE(COMP_EPROM, "\n2T4R config\n"); + + /* We can only know RF type in the function. So we have to init + * DIG RATR table again. + */ + init_rate_adaptive(dev); + + RT_TRACE(COMP_EPROM, "<===========%s()\n", __func__); + + return 0; +} + +static short rtl8192_get_channel_map(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + if (priv->ChannelPlan > COUNTRY_CODE_GLOBAL_DOMAIN) { + netdev_err(dev, + "rtl8180_init: Error channel plan! Set to default.\n"); + priv->ChannelPlan = 0; + } + RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan); + + rtl819x_set_channel_map(priv->ChannelPlan, priv); + return 0; +} + +static short rtl8192_init(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + int err; + + memset(&(priv->stats), 0, sizeof(struct Stats)); + memset(priv->txqueue_to_outpipemap, 0, 9); +#ifdef PIPE12 + { + int i = 0; + static const u8 queuetopipe[] = {3, 2, 1, 0, 4, 8, 7, 6, 5}; + + memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); + } +#else + { + static const u8 queuetopipe[] = {3, 2, 1, 0, 4, 4, 0, 4, 4}; + + memcpy(priv->txqueue_to_outpipemap, queuetopipe, 9); + } +#endif + err = rtl8192_init_priv_variable(dev); + if (err) + return err; + + rtl8192_init_priv_lock(priv); + rtl8192_init_priv_task(dev); + rtl8192_get_eeprom_size(dev); + err = rtl8192_read_eeprom_info(dev); + if (err) { + DMESG("Reading EEPROM info failed"); + return err; + } + rtl8192_get_channel_map(dev); + init_hal_dm(dev); + timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0); + if (rtl8192_usb_initendpoints(dev) != 0) { + DMESG("Endopoints initialization failed"); + return -ENOMEM; + } + + return 0; +} + +/****************************************************************************** + *function: This function actually only set RRSR, RATR and BW_OPMODE registers + * not to do all the hw config as its name says + * input: net_device dev + * output: none + * return: none + * notice: This part need to modified according to the rate set we filtered + * ****************************************************************************/ +static void rtl8192_hwconfig(struct net_device *dev) +{ + u32 regRATR = 0, regRRSR = 0; + u8 regBwOpMode = 0, regTmp = 0; + struct r8192_priv *priv = ieee80211_priv(dev); + u32 ratr_value = 0; + + /* Set RRSR, RATR, and BW_OPMODE registers */ + switch (priv->ieee80211->mode) { + case WIRELESS_MODE_B: + regBwOpMode = BW_OPMODE_20MHZ; + regRATR = RATE_ALL_CCK; + regRRSR = RATE_ALL_CCK; + break; + case WIRELESS_MODE_A: + regBwOpMode = BW_OPMODE_5G | BW_OPMODE_20MHZ; + regRATR = RATE_ALL_OFDM_AG; + regRRSR = RATE_ALL_OFDM_AG; + break; + case WIRELESS_MODE_G: + regBwOpMode = BW_OPMODE_20MHZ; + regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; + regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; + break; + case WIRELESS_MODE_AUTO: + regBwOpMode = BW_OPMODE_20MHZ; + regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | + RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; + regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; + break; + case WIRELESS_MODE_N_24G: + /* It support CCK rate by default. CCK rate will be filtered + * out only when associated AP does not support it. + */ + regBwOpMode = BW_OPMODE_20MHZ; + regRATR = RATE_ALL_CCK | RATE_ALL_OFDM_AG | + RATE_ALL_OFDM_1SS | RATE_ALL_OFDM_2SS; + regRRSR = RATE_ALL_CCK | RATE_ALL_OFDM_AG; + break; + case WIRELESS_MODE_N_5G: + regBwOpMode = BW_OPMODE_5G; + regRATR = RATE_ALL_OFDM_AG | RATE_ALL_OFDM_1SS | + RATE_ALL_OFDM_2SS; + regRRSR = RATE_ALL_OFDM_AG; + break; + } + + write_nic_byte(dev, BW_OPMODE, regBwOpMode); + ratr_value = regRATR; + if (priv->rf_type == RF_1T2R) + ratr_value &= ~(RATE_ALL_OFDM_2SS); + write_nic_dword(dev, RATR0, ratr_value); + write_nic_byte(dev, UFWP, 1); + read_nic_byte(dev, 0x313, ®Tmp); + regRRSR = ((regTmp) << 24) | (regRRSR & 0x00ffffff); + write_nic_dword(dev, RRSR, regRRSR); + + /* Set Retry Limit here */ + write_nic_word(dev, RETRY_LIMIT, + priv->ShortRetryLimit << RETRY_LIMIT_SHORT_SHIFT | + priv->LongRetryLimit << RETRY_LIMIT_LONG_SHIFT); + /* Set Contention Window here */ + + /* Set Tx AGC */ + + /* Set Tx Antenna including Feedback control */ + + /* Set Auto Rate fallback control */ +} + +/* InitializeAdapter and PhyCfg */ +static bool rtl8192_adapter_start(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u32 dwRegRead = 0; + bool init_status = true; + u8 SECR_value = 0x0; + u8 tmp; + + RT_TRACE(COMP_INIT, "====>%s()\n", __func__); + priv->Rf_Mode = RF_OP_By_SW_3wire; + /* for ASIC power on sequence */ + write_nic_byte_E(dev, 0x5f, 0x80); + mdelay(50); + write_nic_byte_E(dev, 0x5f, 0xf0); + write_nic_byte_E(dev, 0x5d, 0x00); + write_nic_byte_E(dev, 0x5e, 0x80); + write_nic_byte(dev, 0x17, 0x37); + mdelay(10); + priv->pFirmware->firmware_status = FW_STATUS_0_INIT; + /* config CPUReset Register */ + /* Firmware Reset or not? */ + read_nic_dword(dev, CPU_GEN, &dwRegRead); + dwRegRead |= CPU_GEN_SYSTEM_RESET; /* do nothing here? */ + + write_nic_dword(dev, CPU_GEN, dwRegRead); + /* config BB. */ + rtl8192_BBConfig(dev); + + /* Loopback mode or not */ + priv->LoopbackMode = RTL819xU_NO_LOOPBACK; + + read_nic_dword(dev, CPU_GEN, &dwRegRead); + if (priv->LoopbackMode == RTL819xU_NO_LOOPBACK) + dwRegRead = (dwRegRead & CPU_GEN_NO_LOOPBACK_MSK) | + CPU_GEN_NO_LOOPBACK_SET; + else if (priv->LoopbackMode == RTL819xU_MAC_LOOPBACK) + dwRegRead |= CPU_CCK_LOOPBACK; + else + RT_TRACE(COMP_ERR, + "Serious error in %s(): wrong loopback mode setting(%d)\n", + __func__, priv->LoopbackMode); + + write_nic_dword(dev, CPU_GEN, dwRegRead); + + /* after reset cpu, we need wait for a seconds to write in register. */ + udelay(500); + + /* add for new bitfile:usb suspend reset pin set to 1. Do we need? */ + read_nic_byte_E(dev, 0x5f, &tmp); + write_nic_byte_E(dev, 0x5f, tmp | 0x20); + + /* Set Hardware */ + rtl8192_hwconfig(dev); + + /* turn on Tx/Rx */ + write_nic_byte(dev, CMDR, CR_RE | CR_TE); + + /* set IDR0 here */ + write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]); + write_nic_word(dev, MAC4, ((u16 *)(dev->dev_addr + 4))[0]); + + /* set RCR */ + write_nic_dword(dev, RCR, priv->ReceiveConfig); + + /* Initialize Number of Reserved Pages in Firmware Queue */ + write_nic_dword(dev, RQPN1, + NUM_OF_PAGE_IN_FW_QUEUE_BK << RSVD_FW_QUEUE_PAGE_BK_SHIFT | + NUM_OF_PAGE_IN_FW_QUEUE_BE << RSVD_FW_QUEUE_PAGE_BE_SHIFT | + NUM_OF_PAGE_IN_FW_QUEUE_VI << RSVD_FW_QUEUE_PAGE_VI_SHIFT | + NUM_OF_PAGE_IN_FW_QUEUE_VO << RSVD_FW_QUEUE_PAGE_VO_SHIFT); + write_nic_dword(dev, RQPN2, + NUM_OF_PAGE_IN_FW_QUEUE_MGNT << RSVD_FW_QUEUE_PAGE_MGNT_SHIFT | + NUM_OF_PAGE_IN_FW_QUEUE_CMD << RSVD_FW_QUEUE_PAGE_CMD_SHIFT); + write_nic_dword(dev, RQPN3, + APPLIED_RESERVED_QUEUE_IN_FW | + NUM_OF_PAGE_IN_FW_QUEUE_BCN << RSVD_FW_QUEUE_PAGE_BCN_SHIFT); + write_nic_dword(dev, RATR0 + 4 * 7, (RATE_ALL_OFDM_AG | RATE_ALL_CCK)); + + /* Set AckTimeout */ + /* TODO: (it value is only for FPGA version). need to be changed!! */ + write_nic_byte(dev, ACK_TIMEOUT, 0x30); + + if (priv->ResetProgress == RESET_TYPE_NORESET) + rtl8192_SetWirelessMode(dev, priv->ieee80211->mode); + if (priv->ResetProgress == RESET_TYPE_NORESET) { + CamResetAllEntry(dev); + SECR_value |= SCR_TxEncEnable; + SECR_value |= SCR_RxDecEnable; + SECR_value |= SCR_NoSKMC; + write_nic_byte(dev, SECR, SECR_value); + } + + /* Beacon related */ + write_nic_word(dev, ATIMWND, 2); + write_nic_word(dev, BCN_INTERVAL, 100); + +#define DEFAULT_EDCA 0x005e4332 + { + int i; + + for (i = 0; i < QOS_QUEUE_NUM; i++) + write_nic_dword(dev, WDCAPARA_ADD[i], DEFAULT_EDCA); + } + + rtl8192_phy_configmac(dev); + + if (priv->card_8192_version == VERSION_819XU_A) { + rtl8192_phy_getTxPower(dev); + rtl8192_phy_setTxPower(dev, priv->chan); + } + + /* Firmware download */ + init_status = init_firmware(dev); + if (!init_status) { + RT_TRACE(COMP_ERR, "ERR!!! %s(): Firmware download is failed\n", + __func__); + return init_status; + } + RT_TRACE(COMP_INIT, "%s():after firmware download\n", __func__); + + /* config RF. */ + if (priv->ResetProgress == RESET_TYPE_NORESET) { + rtl8192_phy_RFConfig(dev); + RT_TRACE(COMP_INIT, "%s():after phy RF config\n", __func__); + } + + if (priv->ieee80211->FwRWRF) + /* We can force firmware to do RF-R/W */ + priv->Rf_Mode = RF_OP_By_FW; + else + priv->Rf_Mode = RF_OP_By_SW_3wire; + + rtl8192_phy_updateInitGain(dev); + /*--set CCK and OFDM Block "ON"--*/ + rtl8192_setBBreg(dev, rFPGA0_RFMOD, bCCKEn, 0x1); + rtl8192_setBBreg(dev, rFPGA0_RFMOD, bOFDMEn, 0x1); + + if (priv->ResetProgress == RESET_TYPE_NORESET) { + /* if D or C cut */ + u8 tmpvalue; + + read_nic_byte(dev, 0x301, &tmpvalue); + if (tmpvalue == 0x03) { + priv->bDcut = true; + RT_TRACE(COMP_POWER_TRACKING, "D-cut\n"); + } else { + priv->bDcut = false; + RT_TRACE(COMP_POWER_TRACKING, "C-cut\n"); + } + dm_initialize_txpower_tracking(dev); + + if (priv->bDcut) { + u32 i, TempCCk; + u32 tmpRegA = rtl8192_QueryBBReg(dev, + rOFDM0_XATxIQImbalance, + bMaskDWord); + + for (i = 0; i < TxBBGainTableLength; i++) { + if (tmpRegA == priv->txbbgain_table[i].txbbgain_value) { + priv->rfa_txpowertrackingindex = (u8)i; + priv->rfa_txpowertrackingindex_real = + (u8)i; + priv->rfa_txpowertracking_default = + priv->rfa_txpowertrackingindex; + break; + } + } + + TempCCk = rtl8192_QueryBBReg(dev, + rCCK0_TxFilter1, + bMaskByte2); + + for (i = 0; i < CCKTxBBGainTableLength; i++) { + if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { + priv->cck_present_attenuation_20Mdefault = (u8)i; + break; + } + } + priv->cck_present_attenuation_40Mdefault = 0; + priv->cck_present_attenuation_difference = 0; + priv->cck_present_attenuation = + priv->cck_present_attenuation_20Mdefault; + } + } + write_nic_byte(dev, 0x87, 0x0); + + return init_status; +} + +/* this configures registers for beacon tx and enables it via + * rtl8192_beacon_tx_enable(). rtl8192_beacon_tx_disable() might + * be used to stop beacon transmission + */ +/*************************************************************************** + * -------------------------------NET STUFF--------------------------- + ***************************************************************************/ + +static struct net_device_stats *rtl8192_stats(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + return &priv->ieee80211->stats; +} + +static bool HalTxCheckStuck819xUsb(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u16 RegTxCounter; + bool bStuck = false; + + read_nic_word(dev, 0x128, &RegTxCounter); + RT_TRACE(COMP_RESET, + "%s():RegTxCounter is %d,TxCounter is %d\n", __func__, + RegTxCounter, priv->TxCounter); + if (priv->TxCounter == RegTxCounter) + bStuck = true; + + priv->TxCounter = RegTxCounter; + + return bStuck; +} + +/* + * <Assumption: RT_TX_SPINLOCK is acquired.> + * First added: 2006.11.19 by emily + */ +static RESET_TYPE TxCheckStuck(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u8 QueueID; + bool bCheckFwTxCnt = false; + + /* Decide such threshold according to current power save mode */ + + for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) { + if (QueueID == TXCMD_QUEUE) + continue; + if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0)) + continue; + + bCheckFwTxCnt = true; + } + if (bCheckFwTxCnt) { + if (HalTxCheckStuck819xUsb(dev)) { + RT_TRACE(COMP_RESET, + "%s: Fw indicates no Tx condition!\n", + __func__); + return RESET_TYPE_SILENT; + } + } + return RESET_TYPE_NORESET; +} + +static bool HalRxCheckStuck819xUsb(struct net_device *dev) +{ + u16 RegRxCounter; + struct r8192_priv *priv = ieee80211_priv(dev); + bool bStuck = false; + static u8 rx_chk_cnt; + + read_nic_word(dev, 0x130, &RegRxCounter); + RT_TRACE(COMP_RESET, + "%s(): RegRxCounter is %d,RxCounter is %d\n", __func__, + RegRxCounter, priv->RxCounter); + /* If rssi is small, we should check rx for long time because of bad rx. + * or maybe it will continuous silent reset every 2 seconds. + */ + rx_chk_cnt++; + if (priv->undecorated_smoothed_pwdb >= (RATE_ADAPTIVE_TH_HIGH + 5)) { + rx_chk_cnt = 0; /* high rssi, check rx stuck right now. */ + } else if (priv->undecorated_smoothed_pwdb < (RATE_ADAPTIVE_TH_HIGH + 5) && + ((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_40M) || + (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb >= RATE_ADAPTIVE_TH_LOW_20M))) { + if (rx_chk_cnt < 2) + return bStuck; + + rx_chk_cnt = 0; + } else if (((priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_40M) || + (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20 && priv->undecorated_smoothed_pwdb < RATE_ADAPTIVE_TH_LOW_20M)) && + priv->undecorated_smoothed_pwdb >= VERY_LOW_RSSI) { + if (rx_chk_cnt < 4) + return bStuck; + + rx_chk_cnt = 0; + } else { + if (rx_chk_cnt < 8) + return bStuck; + + rx_chk_cnt = 0; + } + + if (priv->RxCounter == RegRxCounter) + bStuck = true; + + priv->RxCounter = RegRxCounter; + + return bStuck; +} + +static RESET_TYPE RxCheckStuck(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + bool bRxCheck = false; + + if (priv->IrpPendingCount > 1) + bRxCheck = true; + + if (bRxCheck) { + if (HalRxCheckStuck819xUsb(dev)) { + RT_TRACE(COMP_RESET, "RxStuck Condition\n"); + return RESET_TYPE_SILENT; + } + } + return RESET_TYPE_NORESET; +} + +/* + * This function is called by Checkforhang to check whether we should + * ask OS to reset driver + * + * Note:NIC with USB interface sholud not call this function because we + * cannot scan descriptor to judge whether there is tx stuck. + * Note: This function may be required to be rewrite for Vista OS. + * <<<Assumption: Tx spinlock has been acquired >>> + * + * 8185 and 8185b does not implement this function. + */ +static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + RESET_TYPE TxResetType = RESET_TYPE_NORESET; + RESET_TYPE RxResetType = RESET_TYPE_NORESET; + RT_RF_POWER_STATE rfState; + + rfState = priv->ieee80211->eRFPowerState; + + TxResetType = TxCheckStuck(dev); + if (rfState != eRfOff || + (priv->ieee80211->iw_mode != IW_MODE_ADHOC)) { + /* If driver is in the status of firmware download failure, + * driver skips RF initialization and RF is in turned off + * state. Driver should check whether Rx stuck and do silent + * reset. And if driver is in firmware download failure status, + * driver should initialize RF in the following silent reset + * procedure + * + * Driver should not check RX stuck in IBSS mode because it is + * required to set Check BSSID in order to send beacon, + * however, if check BSSID is set, STA cannot hear any packet + * at all. + */ + RxResetType = RxCheckStuck(dev); + } + if (TxResetType == RESET_TYPE_NORMAL || + RxResetType == RESET_TYPE_NORMAL) { + return RESET_TYPE_NORMAL; + } else if (TxResetType == RESET_TYPE_SILENT || + RxResetType == RESET_TYPE_SILENT) { + RT_TRACE(COMP_RESET, "%s():silent reset\n", __func__); + return RESET_TYPE_SILENT; + } else { + return RESET_TYPE_NORESET; + } +} + +static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); +static int _rtl8192_up(struct net_device *dev); +static int rtl8192_close(struct net_device *dev); + +static void CamRestoreAllEntry(struct net_device *dev) +{ + u8 EntryId = 0; + struct r8192_priv *priv = ieee80211_priv(dev); + u8 *MacAddr = priv->ieee80211->current_network.bssid; + + static u8 CAM_CONST_ADDR[4][6] = { + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, + {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, + {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, + {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; + static u8 CAM_CONST_BROAD[] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + + RT_TRACE(COMP_SEC, "%s:\n", __func__); + + if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || + (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { + for (EntryId = 0; EntryId < 4; EntryId++) { + MacAddr = CAM_CONST_ADDR[EntryId]; + setKey(dev, EntryId, EntryId, + priv->ieee80211->pairwise_key_type, + MacAddr, 0, NULL); + } + + } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { + if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) + setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, + (const u8 *)dev->dev_addr, 0, NULL); + else + setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, + MacAddr, 0, NULL); + } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { + if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) + setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, + (const u8 *)dev->dev_addr, 0, NULL); + else + setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, + MacAddr, 0, NULL); + } + + if (priv->ieee80211->group_key_type == KEY_TYPE_TKIP) { + MacAddr = CAM_CONST_BROAD; + for (EntryId = 1; EntryId < 4; EntryId++) { + setKey(dev, EntryId, EntryId, + priv->ieee80211->group_key_type, + MacAddr, 0, NULL); + } + if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) + setKey(dev, 0, 0, priv->ieee80211->group_key_type, + CAM_CONST_ADDR[0], 0, NULL); + } else if (priv->ieee80211->group_key_type == KEY_TYPE_CCMP) { + MacAddr = CAM_CONST_BROAD; + for (EntryId = 1; EntryId < 4; EntryId++) { + setKey(dev, EntryId, EntryId, + priv->ieee80211->group_key_type, + MacAddr, 0, NULL); + } + + if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) + setKey(dev, 0, 0, priv->ieee80211->group_key_type, + CAM_CONST_ADDR[0], 0, NULL); + } +} + +/* This function is used to fix Tx/Rx stop bug temporarily. + * This function will do "system reset" to NIC when Tx or Rx is stuck. + * The method checking Tx/Rx stuck of this function is supported by FW, + * which reports Tx and Rx counter to register 0x128 and 0x130. + */ +static void rtl819x_ifsilentreset(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + u8 reset_times = 0; + int reset_status = 0; + struct ieee80211_device *ieee = priv->ieee80211; + + /* If we need to check CCK stop, please uncomment this line. */ + /* bStuck = Adapter->HalFunc.CheckHWStopHandler(Adapter); */ + + if (priv->ResetProgress == RESET_TYPE_NORESET) { +RESET_START: + + RT_TRACE(COMP_RESET, "=========>Reset progress!!\n"); + + /* Set the variable for reset. */ + priv->ResetProgress = RESET_TYPE_SILENT; + mutex_lock(&priv->wx_mutex); + if (priv->up == 0) { + RT_TRACE(COMP_ERR, + "%s():the driver is not up! return\n", + __func__); + mutex_unlock(&priv->wx_mutex); + return; + } + priv->up = 0; + RT_TRACE(COMP_RESET, + "%s():======>start to down the driver\n", + __func__); + + rtl8192_rtx_disable(dev); + rtl8192_cancel_deferred_work(priv); + deinit_hal_dm(dev); + del_timer_sync(&priv->watch_dog_timer); + + ieee->sync_scan_hurryup = 1; + if (ieee->state == IEEE80211_LINKED) { + mutex_lock(&ieee->wx_mutex); + netdev_dbg(dev, "ieee->state is IEEE80211_LINKED\n"); + ieee80211_stop_send_beacons(priv->ieee80211); + del_timer_sync(&ieee->associate_timer); + cancel_delayed_work(&ieee->associate_retry_wq); + ieee80211_stop_scan(ieee); + netif_carrier_off(dev); + mutex_unlock(&ieee->wx_mutex); + } else { + netdev_dbg(dev, "ieee->state is NOT LINKED\n"); + ieee80211_softmac_stop_protocol(priv->ieee80211); + } + mutex_unlock(&priv->wx_mutex); + RT_TRACE(COMP_RESET, + "%s():<==========down process is finished\n", + __func__); + RT_TRACE(COMP_RESET, + "%s():===========>start up the driver\n", + __func__); + reset_status = _rtl8192_up(dev); + + RT_TRACE(COMP_RESET, + "%s():<===========up process is finished\n", + __func__); + if (reset_status == -EAGAIN) { + if (reset_times < 3) { + reset_times++; + goto RESET_START; + } else { + RT_TRACE(COMP_ERR, + " ERR!!! %s(): Reset Failed!!\n", + __func__); + } + } + ieee->is_silent_reset = 1; + EnableHWSecurityConfig8192(dev); + if (ieee->state == IEEE80211_LINKED && + ieee->iw_mode == IW_MODE_INFRA) { + ieee->set_chan(ieee->dev, + ieee->current_network.channel); + + queue_work(ieee->wq, &ieee->associate_complete_wq); + + } else if (ieee->state == IEEE80211_LINKED && + ieee->iw_mode == IW_MODE_ADHOC) { + ieee->set_chan(ieee->dev, + ieee->current_network.channel); + ieee->link_change(ieee->dev); + + ieee80211_start_send_beacons(ieee); + + if (ieee->data_hard_resume) + ieee->data_hard_resume(ieee->dev); + netif_carrier_on(ieee->dev); + } + + CamRestoreAllEntry(dev); + + priv->ResetProgress = RESET_TYPE_NORESET; + priv->reset_count++; + + priv->bForcedSilentReset = false; + priv->bResetInProgress = false; + + /* For test --> force write UFWP. */ + write_nic_byte(dev, UFWP, 1); + RT_TRACE(COMP_RESET, + "Reset finished!! ====>[%d]\n", + priv->reset_count); + } +} + +static void rtl819x_update_rxcounts(struct r8192_priv *priv, u32 *TotalRxBcnNum, + u32 *TotalRxDataNum) +{ + u16 SlotIndex; + u16 i; + + *TotalRxBcnNum = 0; + *TotalRxDataNum = 0; + + SlotIndex = (priv->ieee80211->LinkDetectInfo.SlotIndex++) % + (priv->ieee80211->LinkDetectInfo.SlotNum); + priv->ieee80211->LinkDetectInfo.RxBcnNum[SlotIndex] = + priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod; + priv->ieee80211->LinkDetectInfo.RxDataNum[SlotIndex] = + priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod; + for (i = 0; i < priv->ieee80211->LinkDetectInfo.SlotNum; i++) { + *TotalRxBcnNum += priv->ieee80211->LinkDetectInfo.RxBcnNum[i]; + *TotalRxDataNum += priv->ieee80211->LinkDetectInfo.RxDataNum[i]; + } +} + +static void rtl819x_watchdog_wqcallback(struct work_struct *work) +{ + struct delayed_work *dwork = to_delayed_work(work); + struct r8192_priv *priv = container_of(dwork, + struct r8192_priv, watch_dog_wq); + struct net_device *dev = priv->ieee80211->dev; + struct ieee80211_device *ieee = priv->ieee80211; + RESET_TYPE ResetType = RESET_TYPE_NORESET; + static u8 check_reset_cnt; + bool bBusyTraffic = false; + u32 TotalRxBcnNum = 0; + u32 TotalRxDataNum = 0; + + if (!priv->up) + return; + hal_dm_watchdog(dev); + + /* to get busy traffic condition */ + if (ieee->state == IEEE80211_LINKED) { + if (ieee->LinkDetectInfo.NumRxOkInPeriod > 666 || + ieee->LinkDetectInfo.NumTxOkInPeriod > 666) { + bBusyTraffic = true; + } + ieee->LinkDetectInfo.NumRxOkInPeriod = 0; + ieee->LinkDetectInfo.NumTxOkInPeriod = 0; + ieee->LinkDetectInfo.bBusyTraffic = bBusyTraffic; + } + /* for AP roaming */ + if (priv->ieee80211->state == IEEE80211_LINKED && + priv->ieee80211->iw_mode == IW_MODE_INFRA) { + rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); + if ((TotalRxBcnNum + TotalRxDataNum) == 0) { +#ifdef TODO + if (rfState == eRfOff) + RT_TRACE(COMP_ERR, "========>%s()\n", __func__); +#endif + netdev_dbg(dev, + "===>%s(): AP is power off, connect another one\n", + __func__); + priv->ieee80211->state = IEEE80211_ASSOCIATING; + notify_wx_assoc_event(priv->ieee80211); + RemovePeerTS(priv->ieee80211, + priv->ieee80211->current_network.bssid); + priv->ieee80211->link_change(dev); + queue_work(priv->ieee80211->wq, + &priv->ieee80211->associate_procedure_wq); + } + } + priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; + priv->ieee80211->LinkDetectInfo.NumRecvDataInPeriod = 0; + /* check if reset the driver */ + if (check_reset_cnt++ >= 3) { + ResetType = rtl819x_ifcheck_resetornot(dev); + check_reset_cnt = 3; + } + /* This is control by OID set in Pomelo */ + if ((priv->force_reset) || (priv->ResetProgress == RESET_TYPE_NORESET && + (priv->bForcedSilentReset || + (!priv->bDisableNormalResetCheck && ResetType == RESET_TYPE_SILENT)))) { + RT_TRACE(COMP_RESET, + "%s():priv->force_reset is %d,priv->ResetProgress is %d, priv->bForcedSilentReset is %d,priv->bDisableNormalResetCheck is %d,ResetType is %d\n", + __func__, priv->force_reset, priv->ResetProgress, + priv->bForcedSilentReset, + priv->bDisableNormalResetCheck, ResetType); + rtl819x_ifsilentreset(dev); + } + priv->force_reset = false; + priv->bForcedSilentReset = false; + priv->bResetInProgress = false; + RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); +} + +static void watch_dog_timer_callback(struct timer_list *t) +{ + struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer); + + schedule_delayed_work(&priv->watch_dog_wq, 0); + mod_timer(&priv->watch_dog_timer, + jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); +} + +static int _rtl8192_up(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + int init_status = 0; + + priv->up = 1; + priv->ieee80211->ieee_up = 1; + RT_TRACE(COMP_INIT, "Bringing up iface"); + init_status = rtl8192_adapter_start(dev); + if (!init_status) { + RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization failed!\n", + __func__); + priv->up = priv->ieee80211->ieee_up = 0; + return -EAGAIN; + } + RT_TRACE(COMP_INIT, "start adapter finished\n"); + rtl8192_rx_enable(dev); + if (priv->ieee80211->state != IEEE80211_LINKED) + ieee80211_softmac_start_protocol(priv->ieee80211); + ieee80211_reset_queue(priv->ieee80211); + watch_dog_timer_callback(&priv->watch_dog_timer); + if (!netif_queue_stopped(dev)) + netif_start_queue(dev); + else + netif_wake_queue(dev); + + return 0; +} + +static int rtl8192_open(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + int ret; + + mutex_lock(&priv->wx_mutex); + ret = rtl8192_up(dev); + mutex_unlock(&priv->wx_mutex); + return ret; +} + +int rtl8192_up(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + if (priv->up == 1) + return -1; + + return _rtl8192_up(dev); +} + +static int rtl8192_close(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + int ret; + + mutex_lock(&priv->wx_mutex); + + ret = rtl8192_down(dev); + + mutex_unlock(&priv->wx_mutex); + + return ret; +} + +int rtl8192_down(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + int i; + + if (priv->up == 0) + return -1; + + priv->up = 0; + priv->ieee80211->ieee_up = 0; + RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__); + /* FIXME */ + if (!netif_queue_stopped(dev)) + netif_stop_queue(dev); + + rtl8192_rtx_disable(dev); + + /* Tx related queue release */ + for (i = 0; i < MAX_QUEUE_SIZE; i++) + skb_queue_purge(&priv->ieee80211->skb_waitQ[i]); + for (i = 0; i < MAX_QUEUE_SIZE; i++) + skb_queue_purge(&priv->ieee80211->skb_aggQ[i]); + + for (i = 0; i < MAX_QUEUE_SIZE; i++) + skb_queue_purge(&priv->ieee80211->skb_drv_aggQ[i]); + + /* as cancel_delayed_work will del work->timer, so if work is not + * defined as struct delayed_work, it will corrupt + */ + rtl8192_cancel_deferred_work(priv); + deinit_hal_dm(dev); + del_timer_sync(&priv->watch_dog_timer); + + ieee80211_softmac_stop_protocol(priv->ieee80211); + memset(&priv->ieee80211->current_network, 0, + offsetof(struct ieee80211_network, list)); + RT_TRACE(COMP_DOWN, "<==========%s()\n", __func__); + + return 0; +} + +void rtl8192_commit(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + if (priv->up == 0) + return; + priv->up = 0; + + rtl8192_cancel_deferred_work(priv); + del_timer_sync(&priv->watch_dog_timer); + + ieee80211_softmac_stop_protocol(priv->ieee80211); + + rtl8192_rtx_disable(dev); + _rtl8192_up(dev); +} + +static void rtl8192_restart(struct work_struct *work) +{ + struct r8192_priv *priv = container_of(work, struct r8192_priv, + reset_wq); + struct net_device *dev = priv->ieee80211->dev; + + mutex_lock(&priv->wx_mutex); + + rtl8192_commit(dev); + + mutex_unlock(&priv->wx_mutex); +} + +static void r8192_set_multicast(struct net_device *dev) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + short promisc; + + /* FIXME FIXME */ + + promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; + + if (promisc != priv->promisc) + + priv->promisc = promisc; +} + +static int r8192_set_mac_adr(struct net_device *dev, void *mac) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + struct sockaddr *addr = mac; + + mutex_lock(&priv->wx_mutex); + + eth_hw_addr_set(dev, addr->sa_data); + + schedule_work(&priv->reset_wq); + mutex_unlock(&priv->wx_mutex); + + return 0; +} + +/* based on ipw2200 driver */ +static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct iwreq *wrq = (struct iwreq *)rq; + int ret = -1; + struct ieee80211_device *ieee = priv->ieee80211; + u32 key[4]; + u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + struct iw_point *p = &wrq->u.data; + struct ieee_param *ipw = NULL; + + mutex_lock(&priv->wx_mutex); + + if (p->length < sizeof(struct ieee_param) || !p->pointer) { + ret = -EINVAL; + goto out; + } + + ipw = memdup_user(p->pointer, p->length); + if (IS_ERR(ipw)) { + ret = PTR_ERR(ipw); + goto out; + } + + switch (cmd) { + case RTL_IOCTL_WPA_SUPPLICANT: + /* parse here for HW security */ + if (ipw->cmd == IEEE_CMD_SET_ENCRYPTION) { + if (ipw->u.crypt.set_tx) { + if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { + ieee->pairwise_key_type = KEY_TYPE_CCMP; + } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { + ieee->pairwise_key_type = KEY_TYPE_TKIP; + } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { + if (ipw->u.crypt.key_len == 13) + ieee->pairwise_key_type = KEY_TYPE_WEP104; + else if (ipw->u.crypt.key_len == 5) + ieee->pairwise_key_type = KEY_TYPE_WEP40; + } else { + ieee->pairwise_key_type = KEY_TYPE_NA; + } + + if (ieee->pairwise_key_type) { + memcpy((u8 *)key, ipw->u.crypt.key, 16); + EnableHWSecurityConfig8192(dev); + /* We fill both index entry and 4th + * entry for pairwise key as in IPW + * interface, adhoc will only get here, + * so we need index entry for its + * default key serching! + */ + setKey(dev, 4, ipw->u.crypt.idx, + ieee->pairwise_key_type, + (u8 *)ieee->ap_mac_addr, + 0, key); + if (ieee->auth_mode != 2) + setKey(dev, ipw->u.crypt.idx, + ipw->u.crypt.idx, + ieee->pairwise_key_type, + (u8 *)ieee->ap_mac_addr, + 0, key); + } + } else { + memcpy((u8 *)key, ipw->u.crypt.key, 16); + if (strcmp(ipw->u.crypt.alg, "CCMP") == 0) { + ieee->group_key_type = KEY_TYPE_CCMP; + } else if (strcmp(ipw->u.crypt.alg, "TKIP") == 0) { + ieee->group_key_type = KEY_TYPE_TKIP; + } else if (strcmp(ipw->u.crypt.alg, "WEP") == 0) { + if (ipw->u.crypt.key_len == 13) + ieee->group_key_type = KEY_TYPE_WEP104; + else if (ipw->u.crypt.key_len == 5) + ieee->group_key_type = KEY_TYPE_WEP40; + } else { + ieee->group_key_type = KEY_TYPE_NA; + } + + if (ieee->group_key_type) { + setKey(dev, ipw->u.crypt.idx, + /* KeyIndex */ + ipw->u.crypt.idx, + /* KeyType */ + ieee->group_key_type, + /* MacAddr */ + broadcast_addr, + /* DefaultKey */ + 0, + /* KeyContent */ + key); + } + } + } + ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, + &wrq->u.data); + break; + + default: + ret = -EOPNOTSUPP; + break; + } + kfree(ipw); + ipw = NULL; +out: + mutex_unlock(&priv->wx_mutex); + return ret; +} + +static u8 HwRateToMRate90(bool bIsHT, u8 rate) +{ + u8 ret_rate = 0xff; + + if (!bIsHT) { + switch (rate) { + case DESC90_RATE1M: + ret_rate = MGN_1M; + break; + case DESC90_RATE2M: + ret_rate = MGN_2M; + break; + case DESC90_RATE5_5M: + ret_rate = MGN_5_5M; + break; + case DESC90_RATE11M: + ret_rate = MGN_11M; + break; + case DESC90_RATE6M: + ret_rate = MGN_6M; + break; + case DESC90_RATE9M: + ret_rate = MGN_9M; + break; + case DESC90_RATE12M: + ret_rate = MGN_12M; + break; + case DESC90_RATE18M: + ret_rate = MGN_18M; + break; + case DESC90_RATE24M: + ret_rate = MGN_24M; + break; + case DESC90_RATE36M: + ret_rate = MGN_36M; + break; + case DESC90_RATE48M: + ret_rate = MGN_48M; + break; + case DESC90_RATE54M: + ret_rate = MGN_54M; + break; + + default: + ret_rate = 0xff; + RT_TRACE(COMP_RECV, + "%s: Non supported Rate [%x], bIsHT = %d!!!\n", + __func__, rate, bIsHT); + break; + } + + } else { + switch (rate) { + case DESC90_RATEMCS0: + ret_rate = MGN_MCS0; + break; + case DESC90_RATEMCS1: + ret_rate = MGN_MCS1; + break; + case DESC90_RATEMCS2: + ret_rate = MGN_MCS2; + break; + case DESC90_RATEMCS3: + ret_rate = MGN_MCS3; + break; + case DESC90_RATEMCS4: + ret_rate = MGN_MCS4; + break; + case DESC90_RATEMCS5: + ret_rate = MGN_MCS5; + break; + case DESC90_RATEMCS6: + ret_rate = MGN_MCS6; + break; + case DESC90_RATEMCS7: + ret_rate = MGN_MCS7; + break; + case DESC90_RATEMCS8: + ret_rate = MGN_MCS8; + break; + case DESC90_RATEMCS9: + ret_rate = MGN_MCS9; + break; + case DESC90_RATEMCS10: + ret_rate = MGN_MCS10; + break; + case DESC90_RATEMCS11: + ret_rate = MGN_MCS11; + break; + case DESC90_RATEMCS12: + ret_rate = MGN_MCS12; + break; + case DESC90_RATEMCS13: + ret_rate = MGN_MCS13; + break; + case DESC90_RATEMCS14: + ret_rate = MGN_MCS14; + break; + case DESC90_RATEMCS15: + ret_rate = MGN_MCS15; + break; + case DESC90_RATEMCS32: + ret_rate = 0x80 | 0x20; + break; + + default: + ret_rate = 0xff; + RT_TRACE(COMP_RECV, + "%s: Non supported Rate [%x], bIsHT = %d!!!\n", + __func__, rate, bIsHT); + break; + } + } + + return ret_rate; +} + +/* + * Function: UpdateRxPktTimeStamp + * Overview: Record the TSF time stamp when receiving a packet + * + * Input: + * PADAPTER Adapter + * PRT_RFD pRfd, + * + * Output: + * PRT_RFD pRfd + * (pRfd->Status.TimeStampHigh is updated) + * (pRfd->Status.TimeStampLow is updated) + * Return: + * None + */ +static void UpdateRxPktTimeStamp8190(struct net_device *dev, + struct ieee80211_rx_stats *stats) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + + if (stats->bIsAMPDU && !stats->bFirstMPDU) { + stats->mac_time[0] = priv->LastRxDescTSFLow; + stats->mac_time[1] = priv->LastRxDescTSFHigh; + } else { + priv->LastRxDescTSFLow = stats->mac_time[0]; + priv->LastRxDescTSFHigh = stats->mac_time[1]; + } +} + +/* 0-100 index. */ +static long rtl819x_translate_todbm(u8 signal_strength_index) +{ + long signal_power; /* in dBm. */ + + /* Translate to dBm (x=0.5y-95). */ + signal_power = (long)((signal_strength_index + 1) >> 1); + signal_power -= 95; + + return signal_power; +} + +/* We can not declare RSSI/EVM total value of sliding window to + * be a local static. Otherwise, it may increase when we return from S3/S4. The + * value will be kept in memory or disk. Declare the value in the adaptor + * and it will be reinitialized when returned from S3/S4. + */ +static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, + struct ieee80211_rx_stats *pprevious_stats, + struct ieee80211_rx_stats *pcurrent_stats) +{ + bool bcheck = false; + u8 rfpath; + u32 nspatial_stream, tmp_val; + static u32 slide_rssi_index, slide_rssi_statistics; + static u32 slide_evm_index, slide_evm_statistics; + static u32 last_rssi, last_evm; + + static u32 slide_beacon_adc_pwdb_index; + static u32 slide_beacon_adc_pwdb_statistics; + static u32 last_beacon_adc_pwdb; + + struct rtl_80211_hdr_3addr *hdr; + u16 sc; + unsigned int seq; + + hdr = (struct rtl_80211_hdr_3addr *)buffer; + sc = le16_to_cpu(hdr->seq_ctl); + seq = WLAN_GET_SEQ_SEQ(sc); + /* to record the sequence number */ + pcurrent_stats->Seq_Num = seq; + + /* Check whether we should take the previous packet into accounting */ + if (!pprevious_stats->bIsAMPDU) { + /* if previous packet is not aggregated packet */ + bcheck = true; + } + + if (slide_rssi_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { + slide_rssi_statistics = PHY_RSSI_SLID_WIN_MAX; + last_rssi = priv->stats.slide_signal_strength[slide_rssi_index]; + priv->stats.slide_rssi_total -= last_rssi; + } + priv->stats.slide_rssi_total += pprevious_stats->SignalStrength; + + priv->stats.slide_signal_strength[slide_rssi_index++] = + pprevious_stats->SignalStrength; + if (slide_rssi_index >= PHY_RSSI_SLID_WIN_MAX) + slide_rssi_index = 0; + + /* <1> Showed on UI for user, in dbm */ + tmp_val = priv->stats.slide_rssi_total / slide_rssi_statistics; + priv->stats.signal_strength = rtl819x_translate_todbm((u8)tmp_val); + pcurrent_stats->rssi = priv->stats.signal_strength; + + /* If the previous packet does not match the criteria, neglect it */ + if (!pprevious_stats->bPacketMatchBSSID) { + if (!pprevious_stats->bToSelfBA) + return; + } + + if (!bcheck) + return; + + /* only rtl8190 supported + * rtl8190_process_cck_rxpathsel(priv,pprevious_stats); + */ + + /* Check RSSI */ + priv->stats.num_process_phyinfo++; + + /* record the general signal strength to the sliding window. */ + + /* <2> Showed on UI for engineering + * hardware does not provide rssi information for each rf path in CCK + */ + if (!pprevious_stats->bIsCCK && + (pprevious_stats->bPacketToSelf || pprevious_stats->bToSelfBA)) { + for (rfpath = RF90_PATH_A; rfpath < priv->NumTotalRFPath; rfpath++) { + if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, + rfpath)) + continue; + if (priv->stats.rx_rssi_percentage[rfpath] == 0) + priv->stats.rx_rssi_percentage[rfpath] = + pprevious_stats->RxMIMOSignalStrength[rfpath]; + if (pprevious_stats->RxMIMOSignalStrength[rfpath] > priv->stats.rx_rssi_percentage[rfpath]) { + priv->stats.rx_rssi_percentage[rfpath] = + ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + + (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); + priv->stats.rx_rssi_percentage[rfpath] = priv->stats.rx_rssi_percentage[rfpath] + 1; + } else { + priv->stats.rx_rssi_percentage[rfpath] = + ((priv->stats.rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + + (pprevious_stats->RxMIMOSignalStrength[rfpath])) / (RX_SMOOTH_FACTOR); + } + RT_TRACE(COMP_DBG, + "priv->stats.rx_rssi_percentage[rfPath] = %d\n", + priv->stats.rx_rssi_percentage[rfpath]); + } + } + + /* Check PWDB. */ + RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", + pprevious_stats->bIsCCK ? "CCK" : "OFDM", + pprevious_stats->RxPWDBAll); + + if (pprevious_stats->bPacketBeacon) { + /* record the beacon pwdb to the sliding window. */ + if (slide_beacon_adc_pwdb_statistics++ >= PHY_Beacon_RSSI_SLID_WIN_MAX) { + slide_beacon_adc_pwdb_statistics = PHY_Beacon_RSSI_SLID_WIN_MAX; + last_beacon_adc_pwdb = priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index]; + priv->stats.Slide_Beacon_Total -= last_beacon_adc_pwdb; + } + priv->stats.Slide_Beacon_Total += pprevious_stats->RxPWDBAll; + priv->stats.Slide_Beacon_pwdb[slide_beacon_adc_pwdb_index] = pprevious_stats->RxPWDBAll; + slide_beacon_adc_pwdb_index++; + if (slide_beacon_adc_pwdb_index >= PHY_Beacon_RSSI_SLID_WIN_MAX) + slide_beacon_adc_pwdb_index = 0; + pprevious_stats->RxPWDBAll = priv->stats.Slide_Beacon_Total / slide_beacon_adc_pwdb_statistics; + if (pprevious_stats->RxPWDBAll >= 3) + pprevious_stats->RxPWDBAll -= 3; + } + + RT_TRACE(COMP_RXDESC, "Smooth %s PWDB = %d\n", + pprevious_stats->bIsCCK ? "CCK" : "OFDM", + pprevious_stats->RxPWDBAll); + + if (pprevious_stats->bPacketToSelf || + pprevious_stats->bPacketBeacon || + pprevious_stats->bToSelfBA) { + if (priv->undecorated_smoothed_pwdb < 0) + /* initialize */ + priv->undecorated_smoothed_pwdb = + pprevious_stats->RxPWDBAll; + if (pprevious_stats->RxPWDBAll > (u32)priv->undecorated_smoothed_pwdb) { + priv->undecorated_smoothed_pwdb = + (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + + (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); + priv->undecorated_smoothed_pwdb = priv->undecorated_smoothed_pwdb + 1; + } else { + priv->undecorated_smoothed_pwdb = + (((priv->undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + + (pprevious_stats->RxPWDBAll)) / (RX_SMOOTH_FACTOR); + } + } + + /* Check EVM */ + /* record the general EVM to the sliding window. */ + if (pprevious_stats->SignalQuality) { + if (pprevious_stats->bPacketToSelf || + pprevious_stats->bPacketBeacon || + pprevious_stats->bToSelfBA) { + if (slide_evm_statistics++ >= PHY_RSSI_SLID_WIN_MAX) { + slide_evm_statistics = PHY_RSSI_SLID_WIN_MAX; + last_evm = priv->stats.slide_evm[slide_evm_index]; + priv->stats.slide_evm_total -= last_evm; + } + + priv->stats.slide_evm_total += + pprevious_stats->SignalQuality; + + priv->stats.slide_evm[slide_evm_index++] = + pprevious_stats->SignalQuality; + if (slide_evm_index >= PHY_RSSI_SLID_WIN_MAX) + slide_evm_index = 0; + + /* <1> Showed on UI for user, in percentage. */ + tmp_val = priv->stats.slide_evm_total / + slide_evm_statistics; + priv->stats.signal_quality = tmp_val; + /* Showed on UI for user in Windows Vista, + * for Link quality. + */ + priv->stats.last_signal_strength_inpercent = tmp_val; + } + + /* <2> Showed on UI for engineering */ + if (pprevious_stats->bPacketToSelf || + pprevious_stats->bPacketBeacon || + pprevious_stats->bToSelfBA) { + for (nspatial_stream = 0; nspatial_stream < 2; nspatial_stream++) { /* 2 spatial stream */ + if (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] != -1) { + if (priv->stats.rx_evm_percentage[nspatial_stream] == 0) /* initialize */ + priv->stats.rx_evm_percentage[nspatial_stream] = pprevious_stats->RxMIMOSignalQuality[nspatial_stream]; + priv->stats.rx_evm_percentage[nspatial_stream] = + ((priv->stats.rx_evm_percentage[nspatial_stream] * (RX_SMOOTH_FACTOR - 1)) + + (pprevious_stats->RxMIMOSignalQuality[nspatial_stream] * 1)) / (RX_SMOOTH_FACTOR); + } + } + } + } +} + +/*----------------------------------------------------------------------------- + * Function: rtl819x_query_rxpwrpercentage() + * + * Overview: + * + * Input: char antpower + * + * Output: NONE + * + * Return: 0-100 percentage + *--------------------------------------------------------------------------- + */ +static u8 rtl819x_query_rxpwrpercentage(s8 antpower) +{ + if ((antpower <= -100) || (antpower >= 20)) + return 0; + else if (antpower >= 0) + return 100; + else + return 100 + antpower; + +} /* QueryRxPwrPercentage */ + +static u8 rtl819x_evm_dbtopercentage(s8 value) +{ + s8 ret_val = clamp(-value, 0, 33) * 3; + + if (ret_val == 99) + ret_val = 100; + + return ret_val; +} + +/* We want good-looking for signal strength/quality */ +static long rtl819x_signal_scale_mapping(long currsig) +{ + long retsig; + + /* Step 1. Scale mapping. */ + if (currsig >= 61 && currsig <= 100) + retsig = 90 + ((currsig - 60) / 4); + else if (currsig >= 41 && currsig <= 60) + retsig = 78 + ((currsig - 40) / 2); + else if (currsig >= 31 && currsig <= 40) + retsig = 66 + (currsig - 30); + else if (currsig >= 21 && currsig <= 30) + retsig = 54 + (currsig - 20); + else if (currsig >= 5 && currsig <= 20) + retsig = 42 + (((currsig - 5) * 2) / 3); + else if (currsig == 4) + retsig = 36; + else if (currsig == 3) + retsig = 27; + else if (currsig == 2) + retsig = 18; + else if (currsig == 1) + retsig = 9; + else + retsig = currsig; + + return retsig; +} + +static inline bool rx_hal_is_cck_rate(struct rx_drvinfo_819x_usb *pdrvinfo) +{ + if (pdrvinfo->RxHT) + return false; + + switch (pdrvinfo->RxRate) { + case DESC90_RATE1M: + case DESC90_RATE2M: + case DESC90_RATE5_5M: + case DESC90_RATE11M: + return true; + default: + return false; + } +} + +static void rtl8192_query_rxphystatus(struct r8192_priv *priv, + struct ieee80211_rx_stats *pstats, + struct rx_drvinfo_819x_usb *pdrvinfo, + struct ieee80211_rx_stats *precord_stats, + bool bpacket_match_bssid, + bool bpacket_toself, + bool bPacketBeacon, + bool bToSelfBA) +{ + phy_sts_ofdm_819xusb_t *pofdm_buf; + phy_sts_cck_819xusb_t *pcck_buf; + struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc; + u8 *prxpkt; + u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg; + s8 rx_pwr[4], rx_pwr_all = 0; + s8 rx_snrX, rx_evmX; + u8 evm, pwdb_all; + u32 RSSI, total_rssi = 0; + u8 is_cck_rate = 0; + u8 rf_rx_num = 0; + u8 sq; + + priv->stats.numqry_phystatus++; + + is_cck_rate = rx_hal_is_cck_rate(pdrvinfo); + + /* Record it for next packet processing */ + memset(precord_stats, 0, sizeof(struct ieee80211_rx_stats)); + pstats->bPacketMatchBSSID = + precord_stats->bPacketMatchBSSID = bpacket_match_bssid; + pstats->bPacketToSelf = precord_stats->bPacketToSelf = bpacket_toself; + pstats->bIsCCK = precord_stats->bIsCCK = is_cck_rate; + pstats->bPacketBeacon = precord_stats->bPacketBeacon = bPacketBeacon; + pstats->bToSelfBA = precord_stats->bToSelfBA = bToSelfBA; + + prxpkt = (u8 *)pdrvinfo; + + /* Move pointer to the 16th bytes. Phy status start address. */ + prxpkt += sizeof(struct rx_drvinfo_819x_usb); + + /* Initial the cck and ofdm buffer pointer */ + pcck_buf = (phy_sts_cck_819xusb_t *)prxpkt; + pofdm_buf = (phy_sts_ofdm_819xusb_t *)prxpkt; + + pstats->RxMIMOSignalQuality[0] = -1; + pstats->RxMIMOSignalQuality[1] = -1; + precord_stats->RxMIMOSignalQuality[0] = -1; + precord_stats->RxMIMOSignalQuality[1] = -1; + + if (is_cck_rate) { + /* (1)Hardware does not provide RSSI for CCK */ + + /* (2)PWDB, Average PWDB calculated by hardware + * (for rate adaptive) + */ + u8 report; + + priv->stats.numqry_phystatusCCK++; + + if (!priv->bCckHighPower) { + report = pcck_buf->cck_agc_rpt & 0xc0; + report >>= 6; + switch (report) { + case 0x3: + rx_pwr_all = -35 - (pcck_buf->cck_agc_rpt & 0x3e); + break; + case 0x2: + rx_pwr_all = -23 - (pcck_buf->cck_agc_rpt & 0x3e); + break; + case 0x1: + rx_pwr_all = -11 - (pcck_buf->cck_agc_rpt & 0x3e); + break; + case 0x0: + rx_pwr_all = 6 - (pcck_buf->cck_agc_rpt & 0x3e); + break; + } + } else { + report = pcck_buf->cck_agc_rpt & 0x60; + report >>= 5; + switch (report) { + case 0x3: + rx_pwr_all = -35 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); + break; + case 0x2: + rx_pwr_all = -23 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); + break; + case 0x1: + rx_pwr_all = -11 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); + break; + case 0x0: + rx_pwr_all = 6 - ((pcck_buf->cck_agc_rpt & 0x1f) << 1); + break; + } + } + + pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); + pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; + pstats->RecvSignalPower = pwdb_all; + + /* (3) Get Signal Quality (EVM) */ + + if (pstats->RxPWDBAll > 40) { + sq = 100; + } else { + sq = pcck_buf->sq_rpt; + + if (pcck_buf->sq_rpt > 64) + sq = 0; + else if (pcck_buf->sq_rpt < 20) + sq = 100; + else + sq = ((64 - sq) * 100) / 44; + } + pstats->SignalQuality = precord_stats->SignalQuality = sq; + pstats->RxMIMOSignalQuality[0] = + precord_stats->RxMIMOSignalQuality[0] = sq; + pstats->RxMIMOSignalQuality[1] = + precord_stats->RxMIMOSignalQuality[1] = -1; + + } else { + priv->stats.numqry_phystatusHT++; + + /* (1)Get RSSI for HT rate */ + for (i = RF90_PATH_A; i < priv->NumTotalRFPath; i++) { + /* We will judge RF RX path now. */ + if (priv->brfpath_rxenable[i]) + rf_rx_num++; + else + continue; + + if (!rtl8192_phy_CheckIsLegalRFPath(priv->ieee80211->dev, i)) + continue; + + rx_pwr[i] = + ((pofdm_buf->trsw_gain_X[i] & 0x3F) * 2) - 106; + + /* Get Rx snr value in DB */ + tmp_rxsnr = pofdm_buf->rxsnr_X[i]; + rx_snrX = (s8)(tmp_rxsnr); + rx_snrX /= 2; + priv->stats.rxSNRdB[i] = (long)rx_snrX; + + /* Translate DBM to percentage. */ + RSSI = rtl819x_query_rxpwrpercentage(rx_pwr[i]); + total_rssi += RSSI; + + /* Record Signal Strength for next packet */ + pstats->RxMIMOSignalStrength[i] = (u8)RSSI; + precord_stats->RxMIMOSignalStrength[i] = (u8)RSSI; + } + + /* (2)PWDB, Average PWDB calculated by hardware + * (for rate adaptive) + */ + rx_pwr_all = (((pofdm_buf->pwdb_all) >> 1) & 0x7f) - 106; + pwdb_all = rtl819x_query_rxpwrpercentage(rx_pwr_all); + + pstats->RxPWDBAll = precord_stats->RxPWDBAll = pwdb_all; + pstats->RxPower = precord_stats->RxPower = rx_pwr_all; + + /* (3)EVM of HT rate */ + if (pdrvinfo->RxHT && pdrvinfo->RxRate >= DESC90_RATEMCS8 && + pdrvinfo->RxRate <= DESC90_RATEMCS15) + /* both spatial stream make sense */ + max_spatial_stream = 2; + else + /* only spatial stream 1 makes sense */ + max_spatial_stream = 1; + + for (i = 0; i < max_spatial_stream; i++) { + tmp_rxevm = pofdm_buf->rxevm_X[i]; + rx_evmX = (s8)(tmp_rxevm); + + /* Do not use shift operation like "rx_evmX >>= 1" + * because the compiler of free build environment will + * set the most significant bit to "zero" when doing + * shifting operation which may change a negative value + * to positive one, then the dbm value (which is + * supposed to be negative) is not correct anymore. + */ + rx_evmX /= 2; /* dbm */ + + evm = rtl819x_evm_dbtopercentage(rx_evmX); + if (i == 0) + /* Fill value in RFD, Get the first spatial + * stream only + */ + pstats->SignalQuality = + precord_stats->SignalQuality = + evm & 0xff; + pstats->RxMIMOSignalQuality[i] = + precord_stats->RxMIMOSignalQuality[i] = + evm & 0xff; + } + + /* record rx statistics for debug */ + rxsc_sgien_exflg = pofdm_buf->rxsc_sgien_exflg; + prxsc = (struct phy_ofdm_rx_status_rxsc_sgien_exintfflag *) + &rxsc_sgien_exflg; + if (pdrvinfo->BW) /* 40M channel */ + priv->stats.received_bwtype[1 + prxsc->rxsc]++; + else /* 20M channel */ + priv->stats.received_bwtype[0]++; + } + + /* UI BSS List signal strength(in percentage), make it good looking, + * from 0~100. It is assigned to the BSS List in + * GetValueFromBeaconOrProbeRsp(). + */ + if (is_cck_rate) { + pstats->SignalStrength = + precord_stats->SignalStrength = + (u8)(rtl819x_signal_scale_mapping((long)pwdb_all)); + } else { + /* We can judge RX path number now. */ + if (rf_rx_num != 0) { + pstats->SignalStrength = + precord_stats->SignalStrength = + (u8)(rtl819x_signal_scale_mapping((long)(total_rssi /= rf_rx_num))); + } + } +} /* QueryRxPhyStatus8190Pci */ + +static void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats, + struct ieee80211_rx_stats *ptarget_stats) +{ + ptarget_stats->bIsAMPDU = psrc_stats->bIsAMPDU; + ptarget_stats->bFirstMPDU = psrc_stats->bFirstMPDU; + ptarget_stats->Seq_Num = psrc_stats->Seq_Num; +} + +static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, + struct ieee80211_rx_stats *pstats, + struct rx_drvinfo_819x_usb *pdrvinfo) +{ + /* TODO: We must only check packet for current MAC address. + * Not finish + */ + struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; + struct net_device *dev = info->dev; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + bool bpacket_match_bssid, bpacket_toself; + bool bPacketBeacon = false, bToSelfBA = false; + static struct ieee80211_rx_stats previous_stats; + struct rtl_80211_hdr_3addr *hdr; + u16 fc, type; + + /* Get Signal Quality for only RX data queue (but not command queue) */ + + u8 *tmp_buf; + u8 *praddr; + + /* Get MAC frame start address. */ + tmp_buf = (u8 *)skb->data; + + hdr = (struct rtl_80211_hdr_3addr *)tmp_buf; + fc = le16_to_cpu(hdr->frame_ctl); + type = WLAN_FC_GET_TYPE(fc); + praddr = hdr->addr1; + + /* Check if the received packet is acceptable. */ + bpacket_match_bssid = (type != IEEE80211_FTYPE_CTL) && + (ether_addr_equal(priv->ieee80211->current_network.bssid, (fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) + && (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV); + bpacket_toself = bpacket_match_bssid && + (ether_addr_equal(praddr, priv->ieee80211->dev->dev_addr)); + + if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BEACON) + bPacketBeacon = true; + if (WLAN_FC_GET_FRAMETYPE(fc) == IEEE80211_STYPE_BLOCKACK) { + if ((ether_addr_equal(praddr, dev->dev_addr))) + bToSelfBA = true; + } + + if (bpacket_match_bssid) + priv->stats.numpacket_matchbssid++; + if (bpacket_toself) + priv->stats.numpacket_toself++; + /* Process PHY information for previous packet (RSSI/PWDB/EVM) + * Because phy information is contained in the last packet of AMPDU + * only, so driver should process phy information of previous packet + */ + rtl8192_process_phyinfo(priv, tmp_buf, &previous_stats, pstats); + rtl8192_query_rxphystatus(priv, pstats, pdrvinfo, &previous_stats, + bpacket_match_bssid, bpacket_toself, + bPacketBeacon, bToSelfBA); + rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); +} + +/* + * Function: UpdateReceivedRateHistogramStatistics + * Overview: Record the received data rate + * + * Input: + * struct net_device *dev + * struct ieee80211_rx_stats *stats + * + * Output: + * + * (priv->stats.ReceivedRateHistogram[] is updated) + * Return: + * None + */ +static void +UpdateReceivedRateHistogramStatistics8190(struct net_device *dev, + struct ieee80211_rx_stats *stats) +{ + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + /* 0: Total, 1:OK, 2:CRC, 3:ICV */ + u32 rcvType = 1; + u32 rateIndex; + /* 1: short preamble/GI, 0: long preamble/GI */ + u32 preamble_guardinterval; + + if (stats->bCRC) + rcvType = 2; + else if (stats->bICV) + rcvType = 3; + + if (stats->bShortPreamble) + preamble_guardinterval = 1; /* short */ + else + preamble_guardinterval = 0; /* long */ + + switch (stats->rate) { + /* CCK rate */ + case MGN_1M: + rateIndex = 0; + break; + case MGN_2M: + rateIndex = 1; + break; + case MGN_5_5M: + rateIndex = 2; + break; + case MGN_11M: + rateIndex = 3; + break; + /* Legacy OFDM rate */ + case MGN_6M: + rateIndex = 4; + break; + case MGN_9M: + rateIndex = 5; + break; + case MGN_12M: + rateIndex = 6; + break; + case MGN_18M: + rateIndex = 7; + break; + case MGN_24M: + rateIndex = 8; + break; + case MGN_36M: + rateIndex = 9; + break; + case MGN_48M: + rateIndex = 10; + break; + case MGN_54M: + rateIndex = 11; + break; + /* 11n High throughput rate */ + case MGN_MCS0: + rateIndex = 12; + break; + case MGN_MCS1: + rateIndex = 13; + break; + case MGN_MCS2: + rateIndex = 14; + break; + case MGN_MCS3: + rateIndex = 15; + break; + case MGN_MCS4: + rateIndex = 16; + break; + case MGN_MCS5: + rateIndex = 17; + break; + case MGN_MCS6: + rateIndex = 18; + break; + case MGN_MCS7: + rateIndex = 19; + break; + case MGN_MCS8: + rateIndex = 20; + break; + case MGN_MCS9: + rateIndex = 21; + break; + case MGN_MCS10: + rateIndex = 22; + break; + case MGN_MCS11: + rateIndex = 23; + break; + case MGN_MCS12: + rateIndex = 24; + break; + case MGN_MCS13: + rateIndex = 25; + break; + case MGN_MCS14: + rateIndex = 26; + break; + case MGN_MCS15: + rateIndex = 27; + break; + default: + rateIndex = 28; + break; + } + priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++; + priv->stats.received_rate_histogram[0][rateIndex]++; /* total */ + priv->stats.received_rate_histogram[rcvType][rateIndex]++; +} + +static void query_rxdesc_status(struct sk_buff *skb, + struct ieee80211_rx_stats *stats, + bool bIsRxAggrSubframe) +{ + struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; + struct net_device *dev = info->dev; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct rx_drvinfo_819x_usb *driver_info = NULL; + + /* Get Rx Descriptor Information */ + struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; + + stats->Length = desc->Length; + stats->RxDrvInfoSize = desc->RxDrvInfoSize; + stats->RxBufShift = 0; + stats->bICV = desc->ICV; + stats->bCRC = desc->CRC32; + stats->bHwError = stats->bCRC | stats->bICV; + /* RTL8190 set this bit to indicate that Hw does not decrypt packet */ + stats->Decrypted = !desc->SWDec; + + if ((priv->ieee80211->pHTInfo->bCurrentHTSupport) && + (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP)) + stats->bHwError = false; + else + stats->bHwError = stats->bCRC | stats->bICV; + + if (stats->Length < 24 || stats->Length > MAX_8192U_RX_SIZE) + stats->bHwError |= 1; + /* Get Driver Info */ + /* TODO: Need to verify it on FGPA platform + * Driver info are written to the RxBuffer following rx desc + */ + if (stats->RxDrvInfoSize != 0) { + driver_info = (struct rx_drvinfo_819x_usb *)(skb->data + + sizeof(struct rx_desc_819x_usb) + + stats->RxBufShift + ); + /* unit: 0.5M */ + /* TODO */ + if (!stats->bHwError) { + u8 ret_rate; + + ret_rate = HwRateToMRate90(driver_info->RxHT, + driver_info->RxRate); + if (ret_rate == 0xff) { + /* Abnormal Case: Receive CRC OK packet with Rx + * descriptor indicating non supported rate. + * Special Error Handling here + */ + + stats->bHwError = 1; + /* Set 1M rate by default */ + stats->rate = MGN_1M; + } else { + stats->rate = ret_rate; + } + } else { + stats->rate = 0x02; + } + + stats->bShortPreamble = driver_info->SPLCP; + + UpdateReceivedRateHistogramStatistics8190(dev, stats); + + stats->bIsAMPDU = (driver_info->PartAggr == 1); + stats->bFirstMPDU = (driver_info->PartAggr == 1) && + (driver_info->FirstAGGR == 1); + stats->TimeStampLow = driver_info->TSFL; + + UpdateRxPktTimeStamp8190(dev, stats); + + /* Rx A-MPDU */ + if (driver_info->FirstAGGR == 1 || driver_info->PartAggr == 1) + RT_TRACE(COMP_RXDESC, + "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", + driver_info->FirstAGGR, driver_info->PartAggr); + } + + skb_pull(skb, sizeof(struct rx_desc_819x_usb)); + /* Get Total offset of MPDU Frame Body */ + if ((stats->RxBufShift + stats->RxDrvInfoSize) > 0) { + stats->bShift = 1; + skb_pull(skb, stats->RxBufShift + stats->RxDrvInfoSize); + } + + if (driver_info) { + stats->RxIs40MHzPacket = driver_info->BW; + TranslateRxSignalStuff819xUsb(skb, stats, driver_info); + } +} + +static void rtl8192_rx_nomal(struct sk_buff *skb) +{ + struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; + struct net_device *dev = info->dev; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct ieee80211_rx_stats stats = { + .signal = 0, + .noise = 0x100 - 98, + .rate = 0, + .freq = IEEE80211_24GHZ_BAND, + }; + u32 rx_pkt_len = 0; + struct rtl_80211_hdr_1addr *ieee80211_hdr = NULL; + bool unicast_packet = false; + + /* 20 is for ps-poll */ + if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { + /* first packet should not contain Rx aggregation header */ + query_rxdesc_status(skb, &stats, false); + /* TODO */ + /* hardware related info */ + /* Process the MPDU received */ + skb_trim(skb, skb->len - 4/*sCrcLng*/); + + rx_pkt_len = skb->len; + ieee80211_hdr = (struct rtl_80211_hdr_1addr *)skb->data; + unicast_packet = false; + if (is_broadcast_ether_addr(ieee80211_hdr->addr1)) { + /* TODO */ + } else if (is_multicast_ether_addr(ieee80211_hdr->addr1)) { + /* TODO */ + } else { + /* unicast packet */ + unicast_packet = true; + } + + if (!ieee80211_rx(priv->ieee80211, skb, &stats)) { + dev_kfree_skb_any(skb); + } else { + priv->stats.rxoktotal++; + if (unicast_packet) + priv->stats.rxbytesunicast += rx_pkt_len; + } + } else { + priv->stats.rxurberr++; + netdev_dbg(dev, "actual_length: %d\n", skb->len); + dev_kfree_skb_any(skb); + } +} + +static void rtl819xusb_process_received_packet(struct net_device *dev, + struct ieee80211_rx_stats *pstats) +{ + struct r8192_priv *priv = ieee80211_priv(dev); + + /* Get shifted bytes of Starting address of 802.11 header. */ + pstats->virtual_address += get_rxpacket_shiftbytes_819xusb(pstats); +#ifdef TODO /* about HCT */ + if (!Adapter->bInHctTest) + CountRxErrStatistics(Adapter, pRfd); +#endif +#ifdef ENABLE_PS /* for adding ps function in future */ + RT_RF_POWER_STATE rtState; + /* When RF is off, we should not count the packet for hw/sw synchronize + * reason, ie. there may be a duration while sw switch is changed and + * hw switch is being changed. + */ + Adapter->HalFunc.GetHwRegHandler(Adapter, HW_VAR_RF_STATE, + (u8 *)(&rtState)); + if (rtState == eRfOff) + return; +#endif + priv->stats.rxframgment++; + +#ifdef TODO + RmMonitorSignalStrength(Adapter, pRfd); +#endif + /* We have to release RFD and return if rx pkt is cmd pkt. */ + if (rtl819xusb_rx_command_packet(dev, pstats)) + return; + +#ifdef SW_CRC_CHECK + SwCrcCheck(); +#endif +} + +static void query_rx_cmdpkt_desc_status(struct sk_buff *skb, + struct ieee80211_rx_stats *stats) +{ + struct rx_desc_819x_usb *desc = (struct rx_desc_819x_usb *)skb->data; + + /* Get Rx Descriptor Information */ + stats->virtual_address = (u8 *)skb->data; + stats->Length = desc->Length; + stats->RxDrvInfoSize = 0; + stats->RxBufShift = 0; + stats->packetlength = stats->Length - scrclng; + stats->fraglength = stats->packetlength; + stats->fragoffset = 0; + stats->ntotalfrag = 1; +} + +static void rtl8192_rx_cmd(struct sk_buff *skb) +{ + struct rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb; + struct net_device *dev = info->dev; + /* TODO */ + struct ieee80211_rx_stats stats = { + .signal = 0, + .noise = 0x100 - 98, + .rate = 0, + .freq = IEEE80211_24GHZ_BAND, + }; + + if ((skb->len >= (20 + sizeof(struct rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { + query_rx_cmdpkt_desc_status(skb, &stats); + /* prfd->queue_id = 1; */ + + /* Process the command packet received. */ + + rtl819xusb_process_received_packet(dev, &stats); + + dev_kfree_skb_any(skb); + } +} + +static void rtl8192_irq_rx_tasklet(struct tasklet_struct *t) +{ + struct r8192_priv *priv = from_tasklet(priv, t, irq_rx_tasklet); + struct sk_buff *skb; + struct rtl8192_rx_info *info; + + while (NULL != (skb = skb_dequeue(&priv->skb_queue))) { + info = (struct rtl8192_rx_info *)skb->cb; + switch (info->out_pipe) { + /* Nomal packet pipe */ + case 3: + priv->IrpPendingCount--; + rtl8192_rx_nomal(skb); + break; + + /* Command packet pipe */ + case 9: + RT_TRACE(COMP_RECV, "command in-pipe index(%d)\n", + info->out_pipe); + + rtl8192_rx_cmd(skb); + break; + + default: /* should never get here! */ + RT_TRACE(COMP_ERR, "Unknown in-pipe index(%d)\n", + info->out_pipe); + dev_kfree_skb(skb); + break; + } + } +} + +static const struct net_device_ops rtl8192_netdev_ops = { + .ndo_open = rtl8192_open, + .ndo_stop = rtl8192_close, + .ndo_get_stats = rtl8192_stats, + .ndo_tx_timeout = tx_timeout, + .ndo_do_ioctl = rtl8192_ioctl, + .ndo_set_rx_mode = r8192_set_multicast, + .ndo_set_mac_address = r8192_set_mac_adr, + .ndo_validate_addr = eth_validate_addr, + .ndo_start_xmit = ieee80211_xmit, +}; + +/**************************************************************************** + * ---------------------------- USB_STUFF--------------------------- + *****************************************************************************/ + +static int rtl8192_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct net_device *dev = NULL; + struct r8192_priv *priv = NULL; + struct usb_device *udev = interface_to_usbdev(intf); + int ret; + + RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); + + dev = alloc_ieee80211(sizeof(struct r8192_priv)); + if (!dev) + return -ENOMEM; + + usb_set_intfdata(intf, dev); + SET_NETDEV_DEV(dev, &intf->dev); + priv = ieee80211_priv(dev); + priv->ieee80211 = netdev_priv(dev); + priv->udev = udev; + + dev->netdev_ops = &rtl8192_netdev_ops; + + dev->wireless_handlers = &r8192_wx_handlers_def; + + dev->type = ARPHRD_ETHER; + + dev->watchdog_timeo = HZ * 3; + + if (dev_alloc_name(dev, ifname) < 0) { + RT_TRACE(COMP_INIT, + "Oops: devname already taken! Trying wlan%%d...\n"); + ifname = "wlan%d"; + dev_alloc_name(dev, ifname); + } + + RT_TRACE(COMP_INIT, "Driver probe completed1\n"); + if (rtl8192_init(dev) != 0) { + RT_TRACE(COMP_ERR, "Initialization failed"); + ret = -ENODEV; + goto fail; + } + netif_carrier_off(dev); + netif_stop_queue(dev); + + ret = register_netdev(dev); + if (ret) + goto fail2; + + RT_TRACE(COMP_INIT, "dev name=======> %s\n", dev->name); + rtl8192_debugfs_init_one(dev); + + RT_TRACE(COMP_INIT, "Driver probe completed\n"); + return 0; + +fail2: + rtl8192_down(dev); +fail: + kfree(priv->pFirmware); + priv->pFirmware = NULL; + rtl8192_usb_deleteendpoints(dev); + msleep(10); + free_ieee80211(dev); + + RT_TRACE(COMP_ERR, "wlan driver load failed\n"); + return ret; +} + +/* detach all the work and timer structure declared or inititialize + * in r8192U_init function. + */ +static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) +{ + cancel_work_sync(&priv->reset_wq); + cancel_delayed_work(&priv->watch_dog_wq); + cancel_delayed_work(&priv->update_beacon_wq); + cancel_work_sync(&priv->qos_activate); +} + +static void rtl8192_usb_disconnect(struct usb_interface *intf) +{ + struct net_device *dev = usb_get_intfdata(intf); + struct r8192_priv *priv = ieee80211_priv(dev); + + + RT_TRACE(COMP_DOWN, "=============>wlan driver to be removed\n"); + rtl8192_debugfs_exit_one(dev); + + unregister_netdev(dev); + + rtl8192_down(dev); + kfree(priv->pFirmware); + priv->pFirmware = NULL; + rtl8192_usb_deleteendpoints(dev); + usleep_range(10000, 11000); + free_ieee80211(dev); + + RT_TRACE(COMP_DOWN, "wlan driver removed\n"); +} + +static int rtl8192_usb_netdev_event(struct notifier_block *nb, unsigned long event, + void *data) +{ + struct net_device *netdev = netdev_notifier_info_to_dev(data); + + if (netdev->netdev_ops != &rtl8192_netdev_ops) + goto out; + + switch (event) { + case NETDEV_CHANGENAME: + rtl8192_debugfs_rename_one(netdev); + break; + default: + break; + } + +out: + return NOTIFY_DONE; +} + +static struct notifier_block rtl8192_usb_netdev_notifier = { + .notifier_call = rtl8192_usb_netdev_event, +}; + +static int __init rtl8192_usb_module_init(void) +{ + int ret; + + pr_info("\nLinux kernel driver for RTL8192 based WLAN cards\n"); + pr_info("Copyright (c) 2007-2008, Realsil Wlan\n"); + RT_TRACE(COMP_INIT, "Initializing module"); + RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); + + ret = register_netdevice_notifier(&rtl8192_usb_netdev_notifier); + if (ret) { + pr_err("register_netdevice_notifier failed %d\n", ret); + return ret; + } + + rtl8192_debugfs_init(); + ret = ieee80211_debug_init(); + if (ret) { + pr_err("ieee80211_debug_init() failed %d\n", ret); + goto debugfs_exit; + } + + ret = ieee80211_crypto_init(); + if (ret) { + pr_err("ieee80211_crypto_init() failed %d\n", ret); + goto debug_exit; + } + + ret = ieee80211_crypto_tkip_init(); + if (ret) { + pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); + goto crypto_exit; + } + + ret = ieee80211_crypto_ccmp_init(); + if (ret) { + pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); + goto crypto_tkip_exit; + } + + ret = ieee80211_crypto_wep_init(); + if (ret) { + pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); + goto crypto_ccmp_exit; + } + + ret = usb_register(&rtl8192_usb_driver); + if (ret) + goto crypto_wep_exit; + return ret; + +crypto_wep_exit: + ieee80211_crypto_wep_exit(); +crypto_ccmp_exit: + ieee80211_crypto_ccmp_exit(); +crypto_tkip_exit: + ieee80211_crypto_tkip_exit(); +crypto_exit: + ieee80211_crypto_deinit(); +debug_exit: + ieee80211_debug_exit(); +debugfs_exit: + rtl8192_debugfs_exit(); + unregister_netdevice_notifier(&rtl8192_usb_netdev_notifier); + return ret; +} + +static void __exit rtl8192_usb_module_exit(void) +{ + usb_deregister(&rtl8192_usb_driver); + ieee80211_crypto_wep_exit(); + ieee80211_crypto_ccmp_exit(); + ieee80211_crypto_tkip_exit(); + ieee80211_crypto_deinit(); + ieee80211_debug_exit(); + rtl8192_debugfs_exit(); + unregister_netdevice_notifier(&rtl8192_usb_netdev_notifier); + RT_TRACE(COMP_DOWN, "Exiting"); +} + +void EnableHWSecurityConfig8192(struct net_device *dev) +{ + u8 SECR_value = 0x0; + struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); + struct ieee80211_device *ieee = priv->ieee80211; + + SECR_value = SCR_TxEncEnable | SCR_RxDecEnable; + if (((ieee->pairwise_key_type == KEY_TYPE_WEP40) || (ieee->pairwise_key_type == KEY_TYPE_WEP104)) && (priv->ieee80211->auth_mode != 2)) { + SECR_value |= SCR_RxUseDK; + SECR_value |= SCR_TxUseDK; + } else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP))) { + SECR_value |= SCR_RxUseDK; + SECR_value |= SCR_TxUseDK; + } + /* add HWSec active enable here. + * default using hwsec. when peer AP is in N mode only and + * pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates + * it), use software security. when peer AP is in b,g,n mode mixed and + * pairwise_key_type is none_aes, use g mode hw security. + */ + + ieee->hwsec_active = 1; + + /* add hwsec_support flag to totol control hw_sec on/off */ + if ((ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE) || !hwwep) { + ieee->hwsec_active = 0; + SECR_value &= ~SCR_RxDecEnable; + } + RT_TRACE(COMP_SEC, "%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", + __func__, ieee->hwsec_active, ieee->pairwise_key_type, + SECR_value); + write_nic_byte(dev, SECR, SECR_value); +} + +void setKey(struct net_device *dev, u8 entryno, u8 keyindex, u16 keytype, + const u8 *macaddr, u8 defaultkey, u32 *keycontent) +{ + u32 target_command = 0; + u32 target_content = 0; + u16 us_config = 0; + u8 i; + + if (entryno >= TOTAL_CAM_ENTRY) + RT_TRACE(COMP_ERR, "cam entry exceeds in %s\n", __func__); + + RT_TRACE(COMP_SEC, + "====>to %s, dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", + __func__, dev, entryno, keyindex, keytype, macaddr); + + if (defaultkey) + us_config |= BIT(15) | (keytype << 2); + else + us_config |= BIT(15) | (keytype << 2) | keyindex; + + for (i = 0; i < CAM_CONTENT_COUNT; i++) { + target_command = i + CAM_CONTENT_COUNT * entryno; + target_command |= BIT(31) | BIT(16); + + if (i == 0) { /* MAC|Config */ + target_content = (u32)(*(macaddr + 0)) << 16 | + (u32)(*(macaddr + 1)) << 24 | + (u32)us_config; + + write_nic_dword(dev, WCAMI, target_content); + write_nic_dword(dev, RWCAM, target_command); + } else if (i == 1) { /* MAC */ + target_content = (u32)(*(macaddr + 2)) | + (u32)(*(macaddr + 3)) << 8 | + (u32)(*(macaddr + 4)) << 16 | + (u32)(*(macaddr + 5)) << 24; + write_nic_dword(dev, WCAMI, target_content); + write_nic_dword(dev, RWCAM, target_command); + } else { + /* Key Material */ + if (keycontent) { + write_nic_dword(dev, WCAMI, + *(keycontent + i - 2)); + write_nic_dword(dev, RWCAM, target_command); + } + } + } +} + +/*************************************************************************** + * ------------------- module init / exit stubs ---------------- + ****************************************************************************/ +module_init(rtl8192_usb_module_init); +module_exit(rtl8192_usb_module_exit); |