diff options
Diffstat (limited to 'drivers/net/wireless/marvell/libertas_tf')
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/Kconfig | 19 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/Makefile | 7 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/cmd.c | 802 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/deb_defs.h | 104 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/if_usb.c | 922 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/if_usb.h | 94 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/libertas_tf.h | 520 | ||||
| -rw-r--r-- | drivers/net/wireless/marvell/libertas_tf/main.c | 727 |
8 files changed, 3195 insertions, 0 deletions
diff --git a/drivers/net/wireless/marvell/libertas_tf/Kconfig b/drivers/net/wireless/marvell/libertas_tf/Kconfig new file mode 100644 index 000000000..345da4a6e --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/Kconfig @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: GPL-2.0-only +config LIBERTAS_THINFIRM + tristate "Marvell 8xxx Libertas WLAN driver support with thin firmware" + depends on MAC80211 + select FW_LOADER + help + A library for Marvell Libertas 8xxx devices using thinfirm. + +config LIBERTAS_THINFIRM_DEBUG + bool "Enable full debugging output in the Libertas thin firmware module." + depends on LIBERTAS_THINFIRM + help + Debugging support. + +config LIBERTAS_THINFIRM_USB + tristate "Marvell Libertas 8388 USB 802.11b/g cards with thin firmware" + depends on LIBERTAS_THINFIRM && USB + help + A driver for Marvell Libertas 8388 USB devices using thinfirm. diff --git a/drivers/net/wireless/marvell/libertas_tf/Makefile b/drivers/net/wireless/marvell/libertas_tf/Makefile new file mode 100644 index 000000000..9360568b4 --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0-only +libertas_tf-objs := main.o cmd.o + +libertas_tf_usb-objs += if_usb.o + +obj-$(CONFIG_LIBERTAS_THINFIRM) += libertas_tf.o +obj-$(CONFIG_LIBERTAS_THINFIRM_USB) += libertas_tf_usb.o diff --git a/drivers/net/wireless/marvell/libertas_tf/cmd.c b/drivers/net/wireless/marvell/libertas_tf/cmd.c new file mode 100644 index 000000000..efb983045 --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/cmd.c @@ -0,0 +1,802 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2008, cozybit Inc. + * Copyright (C) 2003-2006, Marvell International Ltd. + */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/hardirq.h> +#include <linux/slab.h> +#include <linux/export.h> + +#include "libertas_tf.h" + +static const struct channel_range channel_ranges[] = { + { LBTF_REGDOMAIN_US, 1, 12 }, + { LBTF_REGDOMAIN_CA, 1, 12 }, + { LBTF_REGDOMAIN_EU, 1, 14 }, + { LBTF_REGDOMAIN_JP, 1, 14 }, + { LBTF_REGDOMAIN_SP, 1, 14 }, + { LBTF_REGDOMAIN_FR, 1, 14 }, +}; + +static u16 lbtf_region_code_to_index[MRVDRV_MAX_REGION_CODE] = +{ + LBTF_REGDOMAIN_US, LBTF_REGDOMAIN_CA, LBTF_REGDOMAIN_EU, + LBTF_REGDOMAIN_SP, LBTF_REGDOMAIN_FR, LBTF_REGDOMAIN_JP, +}; + +static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv); + + +/** + * lbtf_cmd_copyback - Simple callback that copies response back into command + * + * @priv: A pointer to struct lbtf_private structure + * @extra: A pointer to the original command structure for which + * 'resp' is a response + * @resp: A pointer to the command response + * + * Returns: 0 on success, error on failure + */ +int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra, + struct cmd_header *resp) +{ + struct cmd_header *buf = (void *)extra; + uint16_t copy_len; + + copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size)); + memcpy(buf, resp, copy_len); + return 0; +} +EXPORT_SYMBOL_GPL(lbtf_cmd_copyback); + +#define CHAN_TO_IDX(chan) ((chan) - 1) + +static void lbtf_geo_init(struct lbtf_private *priv) +{ + const struct channel_range *range = channel_ranges; + u8 ch; + int i; + + for (i = 0; i < ARRAY_SIZE(channel_ranges); i++) + if (channel_ranges[i].regdomain == priv->regioncode) { + range = &channel_ranges[i]; + break; + } + + for (ch = range->start; ch < range->end; ch++) + priv->channels[CHAN_TO_IDX(ch)].flags = 0; +} + +/** + * lbtf_update_hw_spec: Updates the hardware details. + * + * @priv: A pointer to struct lbtf_private structure + * + * Returns: 0 on success, error on failure + */ +int lbtf_update_hw_spec(struct lbtf_private *priv) +{ + struct cmd_ds_get_hw_spec cmd; + int ret = -1; + u32 i; + + lbtf_deb_enter(LBTF_DEB_CMD); + + memset(&cmd, 0, sizeof(cmd)); + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN); + ret = lbtf_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd); + if (ret) + goto out; + + priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo); + + /* The firmware release is in an interesting format: the patch + * level is in the most significant nibble ... so fix that: */ + priv->fwrelease = le32_to_cpu(cmd.fwrelease); + priv->fwrelease = (priv->fwrelease << 8) | + (priv->fwrelease >> 24 & 0xff); + + printk(KERN_INFO "libertastf: %pM, fw %u.%u.%up%u, cap 0x%08x\n", + cmd.permanentaddr, + priv->fwrelease >> 24 & 0xff, + priv->fwrelease >> 16 & 0xff, + priv->fwrelease >> 8 & 0xff, + priv->fwrelease & 0xff, + priv->fwcapinfo); + lbtf_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n", + cmd.hwifversion, cmd.version); + + /* Clamp region code to 8-bit since FW spec indicates that it should + * only ever be 8-bit, even though the field size is 16-bit. Some + * firmware returns non-zero high 8 bits here. + */ + priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF; + + for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) { + /* use the region code to search for the index */ + if (priv->regioncode == lbtf_region_code_to_index[i]) + break; + } + + /* if it's unidentified region code, use the default (USA) */ + if (i >= MRVDRV_MAX_REGION_CODE) { + priv->regioncode = 0x10; + pr_info("unidentified region code; using the default (USA)\n"); + } + + if (priv->current_addr[0] == 0xff) + memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN); + + SET_IEEE80211_PERM_ADDR(priv->hw, priv->current_addr); + + lbtf_geo_init(priv); +out: + lbtf_deb_leave(LBTF_DEB_CMD); + return ret; +} + +/** + * lbtf_set_channel: Set the radio channel + * + * @priv: A pointer to struct lbtf_private structure + * @channel: The desired channel, or 0 to clear a locked channel + * + * Returns: 0 on success, error on failure + */ +int lbtf_set_channel(struct lbtf_private *priv, u8 channel) +{ + int ret = 0; + struct cmd_ds_802_11_rf_channel cmd; + + lbtf_deb_enter(LBTF_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET); + cmd.channel = cpu_to_le16(channel); + + ret = lbtf_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd); + lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret); + return ret; +} + +int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon) +{ + struct cmd_ds_802_11_beacon_set cmd; + int size; + + lbtf_deb_enter(LBTF_DEB_CMD); + + if (beacon->len > MRVL_MAX_BCN_SIZE) { + lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", -1); + return -1; + } + size = sizeof(cmd) - sizeof(cmd.beacon) + beacon->len; + cmd.hdr.size = cpu_to_le16(size); + cmd.len = cpu_to_le16(beacon->len); + memcpy(cmd.beacon, (u8 *) beacon->data, beacon->len); + + lbtf_cmd_async(priv, CMD_802_11_BEACON_SET, &cmd.hdr, size); + + lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", 0); + return 0; +} + +int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable, + int beacon_int) +{ + struct cmd_ds_802_11_beacon_control cmd; + lbtf_deb_enter(LBTF_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_ACT_SET); + cmd.beacon_enable = cpu_to_le16(beacon_enable); + cmd.beacon_period = cpu_to_le16(beacon_int); + + lbtf_cmd_async(priv, CMD_802_11_BEACON_CTRL, &cmd.hdr, sizeof(cmd)); + + lbtf_deb_leave(LBTF_DEB_CMD); + return 0; +} + +static void lbtf_queue_cmd(struct lbtf_private *priv, + struct cmd_ctrl_node *cmdnode) +{ + unsigned long flags; + lbtf_deb_enter(LBTF_DEB_HOST); + + if (!cmdnode) { + lbtf_deb_host("QUEUE_CMD: cmdnode is NULL\n"); + goto qcmd_done; + } + + if (!cmdnode->cmdbuf->size) { + lbtf_deb_host("DNLD_CMD: cmd size is zero\n"); + goto qcmd_done; + } + + cmdnode->result = 0; + spin_lock_irqsave(&priv->driver_lock, flags); + list_add_tail(&cmdnode->list, &priv->cmdpendingq); + spin_unlock_irqrestore(&priv->driver_lock, flags); + + lbtf_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n", + le16_to_cpu(cmdnode->cmdbuf->command)); + +qcmd_done: + lbtf_deb_leave(LBTF_DEB_HOST); +} + +static void lbtf_submit_command(struct lbtf_private *priv, + struct cmd_ctrl_node *cmdnode) +{ + unsigned long flags; + struct cmd_header *cmd; + uint16_t cmdsize; + uint16_t command; + int timeo = 5 * HZ; + int ret; + + lbtf_deb_enter(LBTF_DEB_HOST); + + cmd = cmdnode->cmdbuf; + + spin_lock_irqsave(&priv->driver_lock, flags); + priv->cur_cmd = cmdnode; + cmdsize = le16_to_cpu(cmd->size); + command = le16_to_cpu(cmd->command); + + lbtf_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n", + command, le16_to_cpu(cmd->seqnum), cmdsize); + lbtf_deb_hex(LBTF_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize); + + ret = priv->ops->hw_host_to_card(priv, MVMS_CMD, (u8 *)cmd, cmdsize); + spin_unlock_irqrestore(&priv->driver_lock, flags); + + if (ret) { + pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret); + /* Let the timer kick in and retry, and potentially reset + the whole thing if the condition persists */ + timeo = HZ; + } + + /* Setup the timer after transmit command */ + mod_timer(&priv->command_timer, jiffies + timeo); + + lbtf_deb_leave(LBTF_DEB_HOST); +} + +/* + * This function inserts command node to cmdfreeq + * after cleans it. Requires priv->driver_lock held. + */ +static void __lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv, + struct cmd_ctrl_node *cmdnode) +{ + lbtf_deb_enter(LBTF_DEB_HOST); + + if (!cmdnode) + goto cl_ins_out; + + cmdnode->callback = NULL; + cmdnode->callback_arg = 0; + + memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE); + + list_add_tail(&cmdnode->list, &priv->cmdfreeq); + +cl_ins_out: + lbtf_deb_leave(LBTF_DEB_HOST); +} + +static void lbtf_cleanup_and_insert_cmd(struct lbtf_private *priv, + struct cmd_ctrl_node *ptempcmd) +{ + unsigned long flags; + + spin_lock_irqsave(&priv->driver_lock, flags); + __lbtf_cleanup_and_insert_cmd(priv, ptempcmd); + spin_unlock_irqrestore(&priv->driver_lock, flags); +} + +void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd, + int result) +{ + cmd->result = result; + cmd->cmdwaitqwoken = 1; + wake_up_interruptible(&cmd->cmdwait_q); + + if (!cmd->callback) + __lbtf_cleanup_and_insert_cmd(priv, cmd); + priv->cur_cmd = NULL; +} + +int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv) +{ + struct cmd_ds_mac_multicast_addr cmd; + + lbtf_deb_enter(LBTF_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_ACT_SET); + + cmd.nr_of_adrs = cpu_to_le16((u16) priv->nr_of_multicastmacaddr); + + lbtf_deb_cmd("MULTICAST_ADR: setting %d addresses\n", cmd.nr_of_adrs); + + memcpy(cmd.maclist, priv->multicastlist, + priv->nr_of_multicastmacaddr * ETH_ALEN); + + lbtf_cmd_async(priv, CMD_MAC_MULTICAST_ADR, &cmd.hdr, sizeof(cmd)); + + lbtf_deb_leave(LBTF_DEB_CMD); + return 0; +} + +void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode) +{ + struct cmd_ds_set_mode cmd; + lbtf_deb_enter(LBTF_DEB_WEXT); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.mode = cpu_to_le16(mode); + lbtf_deb_wext("Switching to mode: 0x%x\n", mode); + lbtf_cmd_async(priv, CMD_802_11_SET_MODE, &cmd.hdr, sizeof(cmd)); + + lbtf_deb_leave(LBTF_DEB_WEXT); +} + +void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid) +{ + struct cmd_ds_set_bssid cmd; + lbtf_deb_enter(LBTF_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.activate = activate ? 1 : 0; + if (activate) + memcpy(cmd.bssid, bssid, ETH_ALEN); + + lbtf_cmd_async(priv, CMD_802_11_SET_BSSID, &cmd.hdr, sizeof(cmd)); + lbtf_deb_leave(LBTF_DEB_CMD); +} + +int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr) +{ + struct cmd_ds_802_11_mac_address cmd; + lbtf_deb_enter(LBTF_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_ACT_SET); + + memcpy(cmd.macadd, mac_addr, ETH_ALEN); + + lbtf_cmd_async(priv, CMD_802_11_MAC_ADDRESS, &cmd.hdr, sizeof(cmd)); + lbtf_deb_leave(LBTF_DEB_CMD); + return 0; +} + +int lbtf_set_radio_control(struct lbtf_private *priv) +{ + int ret = 0; + struct cmd_ds_802_11_radio_control cmd; + + lbtf_deb_enter(LBTF_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(CMD_ACT_SET); + + switch (priv->preamble) { + case CMD_TYPE_SHORT_PREAMBLE: + cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE); + break; + + case CMD_TYPE_LONG_PREAMBLE: + cmd.control = cpu_to_le16(SET_LONG_PREAMBLE); + break; + + case CMD_TYPE_AUTO_PREAMBLE: + default: + cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE); + break; + } + + if (priv->radioon) + cmd.control |= cpu_to_le16(TURN_ON_RF); + else + cmd.control &= cpu_to_le16(~TURN_ON_RF); + + lbtf_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon, + priv->preamble); + + ret = lbtf_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd); + + lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret); + return ret; +} + +void lbtf_set_mac_control(struct lbtf_private *priv) +{ + struct cmd_ds_mac_control cmd; + lbtf_deb_enter(LBTF_DEB_CMD); + + cmd.hdr.size = cpu_to_le16(sizeof(cmd)); + cmd.action = cpu_to_le16(priv->mac_control); + cmd.reserved = 0; + + lbtf_cmd_async(priv, CMD_MAC_CONTROL, + &cmd.hdr, sizeof(cmd)); + + lbtf_deb_leave(LBTF_DEB_CMD); +} + +/** + * lbtf_allocate_cmd_buffer - Allocates cmd buffer, links it to free cmd queue + * + * @priv: A pointer to struct lbtf_private structure + * + * Returns: 0 on success. + */ +int lbtf_allocate_cmd_buffer(struct lbtf_private *priv) +{ + int ret = 0; + u32 bufsize; + u32 i; + struct cmd_ctrl_node *cmdarray; + + lbtf_deb_enter(LBTF_DEB_HOST); + + /* Allocate and initialize the command array */ + bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS; + cmdarray = kzalloc(bufsize, GFP_KERNEL); + if (!cmdarray) { + lbtf_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n"); + ret = -1; + goto done; + } + priv->cmd_array = cmdarray; + + /* Allocate and initialize each command buffer in the command array */ + for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { + cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL); + if (!cmdarray[i].cmdbuf) { + lbtf_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n"); + ret = -1; + goto done; + } + } + + for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { + init_waitqueue_head(&cmdarray[i].cmdwait_q); + lbtf_cleanup_and_insert_cmd(priv, &cmdarray[i]); + } + + ret = 0; + +done: + lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %d", ret); + return ret; +} + +/** + * lbtf_free_cmd_buffer - Frees the cmd buffer. + * + * @priv: A pointer to struct lbtf_private structure + * + * Returns: 0 + */ +int lbtf_free_cmd_buffer(struct lbtf_private *priv) +{ + struct cmd_ctrl_node *cmdarray; + unsigned int i; + + lbtf_deb_enter(LBTF_DEB_HOST); + + /* need to check if cmd array is allocated or not */ + if (priv->cmd_array == NULL) { + lbtf_deb_host("FREE_CMD_BUF: cmd_array is NULL\n"); + goto done; + } + + cmdarray = priv->cmd_array; + + /* Release shared memory buffers */ + for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) { + kfree(cmdarray[i].cmdbuf); + cmdarray[i].cmdbuf = NULL; + } + + /* Release cmd_ctrl_node */ + kfree(priv->cmd_array); + priv->cmd_array = NULL; + +done: + lbtf_deb_leave(LBTF_DEB_HOST); + return 0; +} + +/** + * lbtf_get_cmd_ctrl_node - Gets free cmd node from free cmd queue. + * + * @priv: A pointer to struct lbtf_private structure + * + * Returns: pointer to a struct cmd_ctrl_node or NULL if none available. + */ +static struct cmd_ctrl_node *lbtf_get_cmd_ctrl_node(struct lbtf_private *priv) +{ + struct cmd_ctrl_node *tempnode; + unsigned long flags; + + lbtf_deb_enter(LBTF_DEB_HOST); + + if (!priv) + return NULL; + + spin_lock_irqsave(&priv->driver_lock, flags); + + if (!list_empty(&priv->cmdfreeq)) { + tempnode = list_first_entry(&priv->cmdfreeq, + struct cmd_ctrl_node, list); + list_del(&tempnode->list); + } else { + lbtf_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n"); + tempnode = NULL; + } + + spin_unlock_irqrestore(&priv->driver_lock, flags); + + lbtf_deb_leave(LBTF_DEB_HOST); + return tempnode; +} + +/** + * lbtf_execute_next_command: execute next command in cmd pending queue. + * + * @priv: A pointer to struct lbtf_private structure + * + * Returns: 0 on success. + */ +int lbtf_execute_next_command(struct lbtf_private *priv) +{ + struct cmd_ctrl_node *cmdnode = NULL; + struct cmd_header *cmd; + unsigned long flags; + int ret = 0; + + /* Debug group is lbtf_deb_THREAD and not lbtf_deb_HOST, because the + * only caller to us is lbtf_thread() and we get even when a + * data packet is received */ + lbtf_deb_enter(LBTF_DEB_THREAD); + + spin_lock_irqsave(&priv->driver_lock, flags); + + if (priv->cur_cmd) { + pr_alert("EXEC_NEXT_CMD: already processing command!\n"); + spin_unlock_irqrestore(&priv->driver_lock, flags); + ret = -1; + goto done; + } + + if (!list_empty(&priv->cmdpendingq)) { + cmdnode = list_first_entry(&priv->cmdpendingq, + struct cmd_ctrl_node, list); + } + + if (cmdnode) { + cmd = cmdnode->cmdbuf; + + list_del(&cmdnode->list); + lbtf_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n", + le16_to_cpu(cmd->command)); + spin_unlock_irqrestore(&priv->driver_lock, flags); + lbtf_submit_command(priv, cmdnode); + } else + spin_unlock_irqrestore(&priv->driver_lock, flags); + + ret = 0; +done: + lbtf_deb_leave(LBTF_DEB_THREAD); + return ret; +} + +static struct cmd_ctrl_node *__lbtf_cmd_async(struct lbtf_private *priv, + uint16_t command, struct cmd_header *in_cmd, int in_cmd_size, + int (*callback)(struct lbtf_private *, unsigned long, + struct cmd_header *), + unsigned long callback_arg) +{ + struct cmd_ctrl_node *cmdnode; + + lbtf_deb_enter(LBTF_DEB_HOST); + + if (priv->surpriseremoved) { + lbtf_deb_host("PREP_CMD: card removed\n"); + cmdnode = ERR_PTR(-ENOENT); + goto done; + } + + cmdnode = lbtf_get_cmd_ctrl_node(priv); + if (cmdnode == NULL) { + lbtf_deb_host("PREP_CMD: cmdnode is NULL\n"); + + /* Wake up main thread to execute next command */ + queue_work(lbtf_wq, &priv->cmd_work); + cmdnode = ERR_PTR(-ENOBUFS); + goto done; + } + + cmdnode->callback = callback; + cmdnode->callback_arg = callback_arg; + + /* Copy the incoming command to the buffer */ + memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size); + + /* Set sequence number, clean result, move to buffer */ + priv->seqnum++; + cmdnode->cmdbuf->command = cpu_to_le16(command); + cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size); + cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum); + cmdnode->cmdbuf->result = 0; + + lbtf_deb_host("PREP_CMD: command 0x%04x\n", command); + + cmdnode->cmdwaitqwoken = 0; + lbtf_queue_cmd(priv, cmdnode); + queue_work(lbtf_wq, &priv->cmd_work); + + done: + lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %p", cmdnode); + return cmdnode; +} + +void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command, + struct cmd_header *in_cmd, int in_cmd_size) +{ + lbtf_deb_enter(LBTF_DEB_CMD); + __lbtf_cmd_async(priv, command, in_cmd, in_cmd_size, NULL, 0); + lbtf_deb_leave(LBTF_DEB_CMD); +} + +int __lbtf_cmd(struct lbtf_private *priv, uint16_t command, + struct cmd_header *in_cmd, int in_cmd_size, + int (*callback)(struct lbtf_private *, + unsigned long, struct cmd_header *), + unsigned long callback_arg) +{ + struct cmd_ctrl_node *cmdnode; + unsigned long flags; + int ret = 0; + + lbtf_deb_enter(LBTF_DEB_HOST); + + cmdnode = __lbtf_cmd_async(priv, command, in_cmd, in_cmd_size, + callback, callback_arg); + if (IS_ERR(cmdnode)) { + ret = PTR_ERR(cmdnode); + goto done; + } + + might_sleep(); + ret = wait_event_interruptible(cmdnode->cmdwait_q, + cmdnode->cmdwaitqwoken); + if (ret) { + pr_info("PREP_CMD: command 0x%04x interrupted by signal: %d\n", + command, ret); + goto done; + } + + spin_lock_irqsave(&priv->driver_lock, flags); + ret = cmdnode->result; + if (ret) + pr_info("PREP_CMD: command 0x%04x failed: %d\n", + command, ret); + + __lbtf_cleanup_and_insert_cmd(priv, cmdnode); + spin_unlock_irqrestore(&priv->driver_lock, flags); + +done: + lbtf_deb_leave_args(LBTF_DEB_HOST, "ret %d", ret); + return ret; +} +EXPORT_SYMBOL_GPL(__lbtf_cmd); + +/* Call holding driver_lock */ +void lbtf_cmd_response_rx(struct lbtf_private *priv) +{ + priv->cmd_response_rxed = 1; + queue_work(lbtf_wq, &priv->cmd_work); +} +EXPORT_SYMBOL_GPL(lbtf_cmd_response_rx); + +int lbtf_process_rx_command(struct lbtf_private *priv) +{ + uint16_t respcmd, curcmd; + struct cmd_header *resp; + int ret = 0; + unsigned long flags; + uint16_t result; + + lbtf_deb_enter(LBTF_DEB_CMD); + + mutex_lock(&priv->lock); + spin_lock_irqsave(&priv->driver_lock, flags); + + if (!priv->cur_cmd) { + ret = -1; + spin_unlock_irqrestore(&priv->driver_lock, flags); + goto done; + } + + resp = (void *)priv->cmd_resp_buff; + curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command); + respcmd = le16_to_cpu(resp->command); + result = le16_to_cpu(resp->result); + + lbtf_deb_cmd("libertastf: cmd response 0x%04x, seq %d, size %d\n", + respcmd, le16_to_cpu(resp->seqnum), + le16_to_cpu(resp->size)); + + if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) { + spin_unlock_irqrestore(&priv->driver_lock, flags); + ret = -1; + goto done; + } + if (respcmd != CMD_RET(curcmd)) { + spin_unlock_irqrestore(&priv->driver_lock, flags); + ret = -1; + goto done; + } + + if (resp->result == cpu_to_le16(0x0004)) { + /* 0x0004 means -EAGAIN. Drop the response, let it time out + and be resubmitted */ + spin_unlock_irqrestore(&priv->driver_lock, flags); + ret = -1; + goto done; + } + + /* Now we got response from FW, cancel the command timer */ + del_timer(&priv->command_timer); + priv->cmd_timed_out = 0; + if (priv->nr_retries) + priv->nr_retries = 0; + + /* If the command is not successful, cleanup and return failure */ + if ((result != 0 || !(respcmd & 0x8000))) { + /* + * Handling errors here + */ + switch (respcmd) { + case CMD_RET(CMD_GET_HW_SPEC): + case CMD_RET(CMD_802_11_RESET): + pr_info("libertastf: reset failed\n"); + break; + + } + lbtf_complete_command(priv, priv->cur_cmd, result); + spin_unlock_irqrestore(&priv->driver_lock, flags); + + ret = -1; + goto done; + } + + spin_unlock_irqrestore(&priv->driver_lock, flags); + + if (priv->cur_cmd && priv->cur_cmd->callback) { + ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg, + resp); + } + spin_lock_irqsave(&priv->driver_lock, flags); + + if (priv->cur_cmd) { + /* Clean up and Put current command back to cmdfreeq */ + lbtf_complete_command(priv, priv->cur_cmd, result); + } + spin_unlock_irqrestore(&priv->driver_lock, flags); + +done: + mutex_unlock(&priv->lock); + lbtf_deb_leave_args(LBTF_DEB_CMD, "ret %d", ret); + return ret; +} diff --git a/drivers/net/wireless/marvell/libertas_tf/deb_defs.h b/drivers/net/wireless/marvell/libertas_tf/deb_defs.h new file mode 100644 index 000000000..0b520df62 --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/deb_defs.h @@ -0,0 +1,104 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/** + * This header file contains global constant/enum definitions, + * global variable declaration. + */ +#ifndef _LBS_DEB_DEFS_H_ +#define _LBS_DEB_DEFS_H_ + +#ifndef DRV_NAME +#define DRV_NAME "libertas_tf" +#endif + +#include <linux/spinlock.h> + +#ifdef CONFIG_LIBERTAS_THINFIRM_DEBUG +#define DEBUG +#define PROC_DEBUG +#endif + +#define LBTF_DEB_ENTER 0x00000001 +#define LBTF_DEB_LEAVE 0x00000002 +#define LBTF_DEB_MAIN 0x00000004 +#define LBTF_DEB_NET 0x00000008 +#define LBTF_DEB_MESH 0x00000010 +#define LBTF_DEB_WEXT 0x00000020 +#define LBTF_DEB_IOCTL 0x00000040 +#define LBTF_DEB_SCAN 0x00000080 +#define LBTF_DEB_ASSOC 0x00000100 +#define LBTF_DEB_JOIN 0x00000200 +#define LBTF_DEB_11D 0x00000400 +#define LBTF_DEB_DEBUGFS 0x00000800 +#define LBTF_DEB_ETHTOOL 0x00001000 +#define LBTF_DEB_HOST 0x00002000 +#define LBTF_DEB_CMD 0x00004000 +#define LBTF_DEB_RX 0x00008000 +#define LBTF_DEB_TX 0x00010000 +#define LBTF_DEB_USB 0x00020000 +#define LBTF_DEB_CS 0x00040000 +#define LBTF_DEB_FW 0x00080000 +#define LBTF_DEB_THREAD 0x00100000 +#define LBTF_DEB_HEX 0x00200000 +#define LBTF_DEB_SDIO 0x00400000 +#define LBTF_DEB_MACOPS 0x00800000 + +extern unsigned int lbtf_debug; + + +#ifdef DEBUG +#define LBTF_DEB_LL(grp, grpnam, fmt, args...) \ +do { if ((lbtf_debug & (grp)) == (grp)) \ + printk(KERN_DEBUG DRV_NAME grpnam ": " fmt, ## args); } while (0) +#else +#define LBTF_DEB_LL(grp, grpnam, fmt, args...) do {} while (0) +#endif + +#define lbtf_deb_enter(grp) \ + LBTF_DEB_LL(grp | LBTF_DEB_ENTER, " enter", "%s()\n", __func__); +#define lbtf_deb_enter_args(grp, fmt, args...) \ + LBTF_DEB_LL(grp | LBTF_DEB_ENTER, " enter", "%s(" fmt ")\n", __func__, ## args); +#define lbtf_deb_leave(grp) \ + LBTF_DEB_LL(grp | LBTF_DEB_LEAVE, " leave", "%s()\n", __func__); +#define lbtf_deb_leave_args(grp, fmt, args...) \ + LBTF_DEB_LL(grp | LBTF_DEB_LEAVE, " leave", "%s(), " fmt "\n", \ + __func__, ##args); +#define lbtf_deb_main(fmt, args...) LBTF_DEB_LL(LBTF_DEB_MAIN, " main", fmt, ##args) +#define lbtf_deb_net(fmt, args...) LBTF_DEB_LL(LBTF_DEB_NET, " net", fmt, ##args) +#define lbtf_deb_mesh(fmt, args...) LBTF_DEB_LL(LBTF_DEB_MESH, " mesh", fmt, ##args) +#define lbtf_deb_wext(fmt, args...) LBTF_DEB_LL(LBTF_DEB_WEXT, " wext", fmt, ##args) +#define lbtf_deb_ioctl(fmt, args...) LBTF_DEB_LL(LBTF_DEB_IOCTL, " ioctl", fmt, ##args) +#define lbtf_deb_scan(fmt, args...) LBTF_DEB_LL(LBTF_DEB_SCAN, " scan", fmt, ##args) +#define lbtf_deb_assoc(fmt, args...) LBTF_DEB_LL(LBTF_DEB_ASSOC, " assoc", fmt, ##args) +#define lbtf_deb_join(fmt, args...) LBTF_DEB_LL(LBTF_DEB_JOIN, " join", fmt, ##args) +#define lbtf_deb_11d(fmt, args...) LBTF_DEB_LL(LBTF_DEB_11D, " 11d", fmt, ##args) +#define lbtf_deb_debugfs(fmt, args...) LBTF_DEB_LL(LBTF_DEB_DEBUGFS, " debugfs", fmt, ##args) +#define lbtf_deb_ethtool(fmt, args...) LBTF_DEB_LL(LBTF_DEB_ETHTOOL, " ethtool", fmt, ##args) +#define lbtf_deb_host(fmt, args...) LBTF_DEB_LL(LBTF_DEB_HOST, " host", fmt, ##args) +#define lbtf_deb_cmd(fmt, args...) LBTF_DEB_LL(LBTF_DEB_CMD, " cmd", fmt, ##args) +#define lbtf_deb_rx(fmt, args...) LBTF_DEB_LL(LBTF_DEB_RX, " rx", fmt, ##args) +#define lbtf_deb_tx(fmt, args...) LBTF_DEB_LL(LBTF_DEB_TX, " tx", fmt, ##args) +#define lbtf_deb_fw(fmt, args...) LBTF_DEB_LL(LBTF_DEB_FW, " fw", fmt, ##args) +#define lbtf_deb_usb(fmt, args...) LBTF_DEB_LL(LBTF_DEB_USB, " usb", fmt, ##args) +#define lbtf_deb_usbd(dev, fmt, args...) LBTF_DEB_LL(LBTF_DEB_USB, " usbd", "%s:" fmt, dev_name(dev), ##args) +#define lbtf_deb_cs(fmt, args...) LBTF_DEB_LL(LBTF_DEB_CS, " cs", fmt, ##args) +#define lbtf_deb_thread(fmt, args...) LBTF_DEB_LL(LBTF_DEB_THREAD, " thread", fmt, ##args) +#define lbtf_deb_sdio(fmt, args...) LBTF_DEB_LL(LBTF_DEB_SDIO, " thread", fmt, ##args) +#define lbtf_deb_macops(fmt, args...) LBTF_DEB_LL(LBTF_DEB_MACOPS, " thread", fmt, ##args) + +#ifdef DEBUG +static inline void lbtf_deb_hex(unsigned int grp, const char *prompt, u8 *buf, int len) +{ + char newprompt[32]; + + if (len && + (lbtf_debug & LBTF_DEB_HEX) && + (lbtf_debug & grp)) { + snprintf(newprompt, sizeof(newprompt), DRV_NAME " %s: ", prompt); + print_hex_dump_bytes(prompt, DUMP_PREFIX_NONE, buf, len); + } +} +#else +#define lbtf_deb_hex(grp, prompt, buf, len) do {} while (0) +#endif + +#endif diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.c b/drivers/net/wireless/marvell/libertas_tf/if_usb.c new file mode 100644 index 000000000..1750f5e93 --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.c @@ -0,0 +1,922 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2008, cozybit Inc. + * Copyright (C) 2003-2006, Marvell International Ltd. + */ +#define DRV_NAME "lbtf_usb" + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include "libertas_tf.h" +#include "if_usb.h" + +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/firmware.h> +#include <linux/netdevice.h> +#include <linux/slab.h> +#include <linux/usb.h> + +#define INSANEDEBUG 0 +#define lbtf_deb_usb2(...) do { if (INSANEDEBUG) lbtf_deb_usbd(__VA_ARGS__); } while (0) + +#define MESSAGE_HEADER_LEN 4 + +static char *lbtf_fw_name = "lbtf_usb.bin"; +module_param_named(fw_name, lbtf_fw_name, charp, 0644); + +MODULE_FIRMWARE("lbtf_usb.bin"); + +static const struct usb_device_id if_usb_table[] = { + /* Enter the device signature inside */ + { USB_DEVICE(0x1286, 0x2001) }, + { USB_DEVICE(0x05a3, 0x8388) }, + {} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, if_usb_table); + +static void if_usb_receive(struct urb *urb); +static void if_usb_receive_fwload(struct urb *urb); +static int if_usb_prog_firmware(struct lbtf_private *priv); +static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type, + uint8_t *payload, uint16_t nb); +static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, + uint16_t nb, u8 data); +static void if_usb_free(struct if_usb_card *cardp); +static int if_usb_submit_rx_urb(struct if_usb_card *cardp); +static int if_usb_reset_device(struct lbtf_private *priv); + +/** + * if_usb_write_bulk_callback - call back to handle URB status + * + * @urb: pointer to urb structure + */ +static void if_usb_write_bulk_callback(struct urb *urb) +{ + if (urb->status != 0) { + /* print the failure status number for debug */ + pr_info("URB in failure status: %d\n", urb->status); + } else { + lbtf_deb_usb2(&urb->dev->dev, "URB status is successful\n"); + lbtf_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n", + urb->actual_length); + } +} + +/** + * if_usb_free - free tx/rx urb, skb and rx buffer + * + * @cardp: pointer if_usb_card + */ +static void if_usb_free(struct if_usb_card *cardp) +{ + lbtf_deb_enter(LBTF_DEB_USB); + + /* Unlink tx & rx urb */ + usb_kill_urb(cardp->tx_urb); + usb_kill_urb(cardp->rx_urb); + usb_kill_urb(cardp->cmd_urb); + + usb_free_urb(cardp->tx_urb); + cardp->tx_urb = NULL; + + usb_free_urb(cardp->rx_urb); + cardp->rx_urb = NULL; + + usb_free_urb(cardp->cmd_urb); + cardp->cmd_urb = NULL; + + kfree(cardp->ep_out_buf); + cardp->ep_out_buf = NULL; + + lbtf_deb_leave(LBTF_DEB_USB); +} + +static void if_usb_setup_firmware(struct lbtf_private *priv) +{ + struct if_usb_card *cardp = priv->card; + struct cmd_ds_set_boot2_ver b2_cmd; + + lbtf_deb_enter(LBTF_DEB_USB); + + if_usb_submit_rx_urb(cardp); + b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd)); + b2_cmd.action = 0; + b2_cmd.version = cardp->boot2_version; + + if (lbtf_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd)) + lbtf_deb_usb("Setting boot2 version failed\n"); + + lbtf_deb_leave(LBTF_DEB_USB); +} + +static void if_usb_fw_timeo(struct timer_list *t) +{ + struct if_usb_card *cardp = from_timer(cardp, t, fw_timeout); + + lbtf_deb_enter(LBTF_DEB_USB); + if (!cardp->fwdnldover) { + /* Download timed out */ + cardp->priv->surpriseremoved = 1; + pr_err("Download timed out\n"); + } else { + lbtf_deb_usb("Download complete, no event. Assuming success\n"); + } + wake_up(&cardp->fw_wq); + lbtf_deb_leave(LBTF_DEB_USB); +} + +static const struct lbtf_ops if_usb_ops = { + .hw_host_to_card = if_usb_host_to_card, + .hw_prog_firmware = if_usb_prog_firmware, + .hw_reset_device = if_usb_reset_device, +}; + +/** + * if_usb_probe - sets the configuration values + * + * @intf: USB interface structure + * @id: pointer to usb_device_id + * + * Returns: 0 on success, error code on failure + */ +static int if_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *udev; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + struct lbtf_private *priv; + struct if_usb_card *cardp; + int i; + + lbtf_deb_enter(LBTF_DEB_USB); + udev = interface_to_usbdev(intf); + + cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL); + if (!cardp) + goto error; + + timer_setup(&cardp->fw_timeout, if_usb_fw_timeo, 0); + init_waitqueue_head(&cardp->fw_wq); + + cardp->udev = udev; + iface_desc = intf->cur_altsetting; + + lbtf_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X" + " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n", + le16_to_cpu(udev->descriptor.bcdUSB), + udev->descriptor.bDeviceClass, + udev->descriptor.bDeviceSubClass, + udev->descriptor.bDeviceProtocol); + + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i].desc; + if (usb_endpoint_is_bulk_in(endpoint)) { + cardp->ep_in_size = + le16_to_cpu(endpoint->wMaxPacketSize); + cardp->ep_in = usb_endpoint_num(endpoint); + + lbtf_deb_usbd(&udev->dev, "in_endpoint = %d\n", + cardp->ep_in); + lbtf_deb_usbd(&udev->dev, "Bulk in size is %d\n", + cardp->ep_in_size); + } else if (usb_endpoint_is_bulk_out(endpoint)) { + cardp->ep_out_size = + le16_to_cpu(endpoint->wMaxPacketSize); + cardp->ep_out = usb_endpoint_num(endpoint); + + lbtf_deb_usbd(&udev->dev, "out_endpoint = %d\n", + cardp->ep_out); + lbtf_deb_usbd(&udev->dev, "Bulk out size is %d\n", + cardp->ep_out_size); + } + } + if (!cardp->ep_out_size || !cardp->ep_in_size) { + lbtf_deb_usbd(&udev->dev, "Endpoints not found\n"); + /* Endpoints not found */ + goto dealloc; + } + + cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!cardp->rx_urb) + goto dealloc; + + cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!cardp->tx_urb) + goto dealloc; + + cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!cardp->cmd_urb) + goto dealloc; + + cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, + GFP_KERNEL); + if (!cardp->ep_out_buf) { + lbtf_deb_usbd(&udev->dev, "Could not allocate buffer\n"); + goto dealloc; + } + + cardp->boot2_version = udev->descriptor.bcdDevice; + priv = lbtf_add_card(cardp, &udev->dev, &if_usb_ops); + if (!priv) + goto dealloc; + + usb_get_dev(udev); + usb_set_intfdata(intf, cardp); + + return 0; + +dealloc: + if_usb_free(cardp); + kfree(cardp); +error: +lbtf_deb_leave(LBTF_DEB_MAIN); + return -ENOMEM; +} + +/** + * if_usb_disconnect - free resource and cleanup + * + * @intf: USB interface structure + */ +static void if_usb_disconnect(struct usb_interface *intf) +{ + struct if_usb_card *cardp = usb_get_intfdata(intf); + struct lbtf_private *priv = cardp->priv; + + lbtf_deb_enter(LBTF_DEB_MAIN); + + if (priv) { + if_usb_reset_device(priv); + lbtf_remove_card(priv); + } + + /* Unlink and free urb */ + if_usb_free(cardp); + kfree(cardp); + + usb_set_intfdata(intf, NULL); + usb_put_dev(interface_to_usbdev(intf)); + + lbtf_deb_leave(LBTF_DEB_MAIN); +} + +/** + * if_usb_send_fw_pkt - This function downloads the FW + * + * @cardp: pointer if_usb_card + * + * Returns: 0 + */ +static int if_usb_send_fw_pkt(struct if_usb_card *cardp) +{ + struct fwdata *fwdata = cardp->ep_out_buf; + u8 *firmware = (u8 *) cardp->fw->data; + + lbtf_deb_enter(LBTF_DEB_FW); + + /* If we got a CRC failure on the last block, back + up and retry it */ + if (!cardp->CRC_OK) { + cardp->totalbytes = cardp->fwlastblksent; + cardp->fwseqnum--; + } + + lbtf_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n", + cardp->totalbytes); + + /* struct fwdata (which we sent to the card) has an + extra __le32 field in between the header and the data, + which is not in the struct fwheader in the actual + firmware binary. Insert the seqnum in the middle... */ + memcpy(&fwdata->hdr, &firmware[cardp->totalbytes], + sizeof(struct fwheader)); + + cardp->fwlastblksent = cardp->totalbytes; + cardp->totalbytes += sizeof(struct fwheader); + + memcpy(fwdata->data, &firmware[cardp->totalbytes], + le32_to_cpu(fwdata->hdr.datalength)); + + lbtf_deb_usb2(&cardp->udev->dev, "Data length = %d\n", + le32_to_cpu(fwdata->hdr.datalength)); + + fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum); + cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength); + + usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) + + le32_to_cpu(fwdata->hdr.datalength), 0); + + if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) { + lbtf_deb_usb2(&cardp->udev->dev, "There are data to follow\n"); + lbtf_deb_usb2(&cardp->udev->dev, + "seqnum = %d totalbytes = %d\n", + cardp->fwseqnum, cardp->totalbytes); + } else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) { + lbtf_deb_usb2(&cardp->udev->dev, + "Host has finished FW downloading\n"); + lbtf_deb_usb2(&cardp->udev->dev, "Downloading FW JUMP BLOCK\n"); + + /* Host has finished FW downloading + * Donwloading FW JUMP BLOCK + */ + cardp->fwfinalblk = 1; + } + + lbtf_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n", + cardp->totalbytes); + + lbtf_deb_leave(LBTF_DEB_FW); + return 0; +} + +static int if_usb_reset_device(struct lbtf_private *priv) +{ + struct if_usb_card *cardp = priv->card; + struct cmd_ds_802_11_reset *cmd = cardp->ep_out_buf + 4; + int ret; + + lbtf_deb_enter(LBTF_DEB_USB); + + *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); + + cmd->hdr.command = cpu_to_le16(CMD_802_11_RESET); + cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset)); + cmd->hdr.result = cpu_to_le16(0); + cmd->hdr.seqnum = cpu_to_le16(0x5a5a); + cmd->action = cpu_to_le16(CMD_ACT_HALT); + usb_tx_block(cardp, cardp->ep_out_buf, + 4 + sizeof(struct cmd_ds_802_11_reset), 0); + + msleep(100); + ret = usb_reset_device(cardp->udev); + msleep(100); + + lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret); + + return ret; +} + +/** + * usb_tx_block - transfer data to the device + * + * @cardp: pointer if_usb_card + * @payload: pointer to payload data + * @nb: data length + * @data: non-zero for data, zero for commands + * + * Returns: 0 on success, nonzero otherwise. + */ +static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, + uint16_t nb, u8 data) +{ + int ret = -1; + struct urb *urb; + + lbtf_deb_enter(LBTF_DEB_USB); + /* check if device is removed */ + if (cardp->priv->surpriseremoved) { + lbtf_deb_usbd(&cardp->udev->dev, "Device removed\n"); + goto tx_ret; + } + + if (data) + urb = cardp->tx_urb; + else + urb = cardp->cmd_urb; + + usb_fill_bulk_urb(urb, cardp->udev, + usb_sndbulkpipe(cardp->udev, + cardp->ep_out), + payload, nb, if_usb_write_bulk_callback, cardp); + + urb->transfer_flags |= URB_ZERO_PACKET; + + if (usb_submit_urb(urb, GFP_ATOMIC)) { + lbtf_deb_usbd(&cardp->udev->dev, + "usb_submit_urb failed: %d\n", ret); + goto tx_ret; + } + + lbtf_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n"); + + ret = 0; + +tx_ret: + lbtf_deb_leave(LBTF_DEB_USB); + return ret; +} + +static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, + void (*callbackfn)(struct urb *urb)) +{ + struct sk_buff *skb; + int ret = -1; + + lbtf_deb_enter(LBTF_DEB_USB); + + skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE); + if (!skb) { + pr_err("No free skb\n"); + lbtf_deb_leave(LBTF_DEB_USB); + return -1; + } + + cardp->rx_skb = skb; + + /* Fill the receive configuration URB and initialise the Rx call back */ + usb_fill_bulk_urb(cardp->rx_urb, cardp->udev, + usb_rcvbulkpipe(cardp->udev, cardp->ep_in), + skb_tail_pointer(skb), + MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp); + + lbtf_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", + cardp->rx_urb); + ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC); + if (ret) { + lbtf_deb_usbd(&cardp->udev->dev, + "Submit Rx URB failed: %d\n", ret); + kfree_skb(skb); + cardp->rx_skb = NULL; + lbtf_deb_leave(LBTF_DEB_USB); + return -1; + } else { + lbtf_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n"); + lbtf_deb_leave(LBTF_DEB_USB); + return 0; + } +} + +static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp) +{ + return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload); +} + +static int if_usb_submit_rx_urb(struct if_usb_card *cardp) +{ + return __if_usb_submit_rx_urb(cardp, &if_usb_receive); +} + +static void if_usb_receive_fwload(struct urb *urb) +{ + struct if_usb_card *cardp = urb->context; + struct sk_buff *skb = cardp->rx_skb; + struct fwsyncheader *syncfwheader; + struct bootcmdresp bcmdresp; + + lbtf_deb_enter(LBTF_DEB_USB); + if (urb->status) { + lbtf_deb_usbd(&cardp->udev->dev, + "URB status is failed during fw load\n"); + kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); + return; + } + + if (cardp->fwdnldover) { + __le32 *tmp = (__le32 *)(skb->data); + + if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) && + tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) { + /* Firmware ready event received */ + pr_info("Firmware ready event received\n"); + wake_up(&cardp->fw_wq); + } else { + lbtf_deb_usb("Waiting for confirmation; got %x %x\n", + le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1])); + if_usb_submit_rx_urb_fwload(cardp); + } + kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); + return; + } + if (cardp->bootcmdresp <= 0) { + memcpy(&bcmdresp, skb->data, sizeof(bcmdresp)); + + if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) { + kfree_skb(skb); + if_usb_submit_rx_urb_fwload(cardp); + cardp->bootcmdresp = 1; + /* Received valid boot command response */ + lbtf_deb_usbd(&cardp->udev->dev, + "Received valid boot command response\n"); + lbtf_deb_leave(LBTF_DEB_USB); + return; + } + if (bcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) { + if (bcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) || + bcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) || + bcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) { + if (!cardp->bootcmdresp) + pr_info("Firmware already seems alive; resetting\n"); + cardp->bootcmdresp = -1; + } else { + pr_info("boot cmd response wrong magic number (0x%x)\n", + le32_to_cpu(bcmdresp.magic)); + } + } else if (bcmdresp.cmd != BOOT_CMD_FW_BY_USB) { + pr_info("boot cmd response cmd_tag error (%d)\n", + bcmdresp.cmd); + } else if (bcmdresp.result != BOOT_CMD_RESP_OK) { + pr_info("boot cmd response result error (%d)\n", + bcmdresp.result); + } else { + cardp->bootcmdresp = 1; + lbtf_deb_usbd(&cardp->udev->dev, + "Received valid boot command response\n"); + } + + kfree_skb(skb); + if_usb_submit_rx_urb_fwload(cardp); + lbtf_deb_leave(LBTF_DEB_USB); + return; + } + + syncfwheader = kmemdup(skb->data, sizeof(struct fwsyncheader), + GFP_ATOMIC); + if (!syncfwheader) { + lbtf_deb_usbd(&cardp->udev->dev, + "Failure to allocate syncfwheader\n"); + kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); + return; + } + + if (!syncfwheader->cmd) { + lbtf_deb_usb2(&cardp->udev->dev, + "FW received Blk with correct CRC\n"); + lbtf_deb_usb2(&cardp->udev->dev, + "FW received Blk seqnum = %d\n", + le32_to_cpu(syncfwheader->seqnum)); + cardp->CRC_OK = 1; + } else { + lbtf_deb_usbd(&cardp->udev->dev, + "FW received Blk with CRC error\n"); + cardp->CRC_OK = 0; + } + + kfree_skb(skb); + + /* reschedule timer for 200ms hence */ + mod_timer(&cardp->fw_timeout, jiffies + (HZ/5)); + + if (cardp->fwfinalblk) { + cardp->fwdnldover = 1; + goto exit; + } + + if_usb_send_fw_pkt(cardp); + + exit: + if_usb_submit_rx_urb_fwload(cardp); + + kfree(syncfwheader); + + lbtf_deb_leave(LBTF_DEB_USB); +} + +#define MRVDRV_MIN_PKT_LEN 30 + +static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, + struct if_usb_card *cardp, + struct lbtf_private *priv) +{ + if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN + || recvlength < MRVDRV_MIN_PKT_LEN) { + lbtf_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n"); + kfree_skb(skb); + return; + } + + skb_put(skb, recvlength); + skb_pull(skb, MESSAGE_HEADER_LEN); + lbtf_rx(priv, skb); +} + +static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, + struct sk_buff *skb, + struct if_usb_card *cardp, + struct lbtf_private *priv) +{ + unsigned long flags; + + if (recvlength < MESSAGE_HEADER_LEN || + recvlength > LBS_CMD_BUFFER_SIZE) { + lbtf_deb_usbd(&cardp->udev->dev, + "The receive buffer is invalid: %d\n", recvlength); + kfree_skb(skb); + return; + } + + spin_lock_irqsave(&priv->driver_lock, flags); + memcpy(priv->cmd_resp_buff, recvbuff + MESSAGE_HEADER_LEN, + recvlength - MESSAGE_HEADER_LEN); + dev_kfree_skb_irq(skb); + lbtf_cmd_response_rx(priv); + spin_unlock_irqrestore(&priv->driver_lock, flags); +} + +/** + * if_usb_receive - read data received from the device. + * + * @urb: pointer to struct urb + */ +static void if_usb_receive(struct urb *urb) +{ + struct if_usb_card *cardp = urb->context; + struct sk_buff *skb = cardp->rx_skb; + struct lbtf_private *priv = cardp->priv; + int recvlength = urb->actual_length; + uint8_t *recvbuff = NULL; + uint32_t recvtype = 0; + __le32 *pkt = (__le32 *) skb->data; + + lbtf_deb_enter(LBTF_DEB_USB); + + if (recvlength) { + if (urb->status) { + lbtf_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n", + urb->status); + kfree_skb(skb); + goto setup_for_next; + } + + recvbuff = skb->data; + recvtype = le32_to_cpu(pkt[0]); + lbtf_deb_usbd(&cardp->udev->dev, + "Recv length = 0x%x, Recv type = 0x%X\n", + recvlength, recvtype); + } else if (urb->status) { + kfree_skb(skb); + lbtf_deb_leave(LBTF_DEB_USB); + return; + } + + switch (recvtype) { + case CMD_TYPE_DATA: + process_cmdtypedata(recvlength, skb, cardp, priv); + break; + + case CMD_TYPE_REQUEST: + process_cmdrequest(recvlength, recvbuff, skb, cardp, priv); + break; + + case CMD_TYPE_INDICATION: + { + /* Event cause handling */ + u32 event_cause = le32_to_cpu(pkt[1]); + lbtf_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", + event_cause); + + /* Icky undocumented magic special case */ + if (event_cause & 0xffff0000) { + u16 tmp; + u8 retrycnt; + u8 failure; + + tmp = event_cause >> 16; + retrycnt = tmp & 0x00ff; + failure = (tmp & 0xff00) >> 8; + lbtf_send_tx_feedback(priv, retrycnt, failure); + } else if (event_cause == LBTF_EVENT_BCN_SENT) + lbtf_bcn_sent(priv); + else + lbtf_deb_usbd(&cardp->udev->dev, + "Unsupported notification %d received\n", + event_cause); + kfree_skb(skb); + break; + } + default: + lbtf_deb_usbd(&cardp->udev->dev, + "libertastf: unknown command type 0x%X\n", recvtype); + kfree_skb(skb); + break; + } + +setup_for_next: + if_usb_submit_rx_urb(cardp); + lbtf_deb_leave(LBTF_DEB_USB); +} + +/** + * if_usb_host_to_card - Download data to the device + * + * @priv: pointer to struct lbtf_private structure + * @type: type of data + * @payload: pointer to payload buffer + * @nb: number of bytes + * + * Returns: 0 on success, nonzero otherwise + */ +static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type, + uint8_t *payload, uint16_t nb) +{ + struct if_usb_card *cardp = priv->card; + u8 data = 0; + + lbtf_deb_usbd(&cardp->udev->dev, "*** type = %u\n", type); + lbtf_deb_usbd(&cardp->udev->dev, "size after = %d\n", nb); + + if (type == MVMS_CMD) { + *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST); + } else { + *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA); + data = 1; + } + + memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb); + + return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN, + data); +} + +/** + * if_usb_issue_boot_command - Issue boot command to Boot2. + * + * @cardp: pointer if_usb_card + * @ivalue: 1 boots from FW by USB-Download, 2 boots from FW in EEPROM. + * + * Returns: 0 + */ +static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue) +{ + struct bootcmd *bootcmd = cardp->ep_out_buf; + + /* Prepare command */ + bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER); + bootcmd->cmd = ivalue; + memset(bootcmd->pad, 0, sizeof(bootcmd->pad)); + + /* Issue command */ + usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd), 0); + + return 0; +} + + +/** + * check_fwfile_format - Check the validity of Boot2/FW image. + * + * @data: pointer to image + * @totlen: image length + * + * Returns: 0 if the image is valid, nonzero otherwise. + */ +static int check_fwfile_format(const u8 *data, u32 totlen) +{ + u32 bincmd, exit; + u32 blksize, offset, len; + int ret; + + ret = 1; + exit = len = 0; + + do { + struct fwheader *fwh = (void *) data; + + bincmd = le32_to_cpu(fwh->dnldcmd); + blksize = le32_to_cpu(fwh->datalength); + switch (bincmd) { + case FW_HAS_DATA_TO_RECV: + offset = sizeof(struct fwheader) + blksize; + data += offset; + len += offset; + if (len >= totlen) + exit = 1; + break; + case FW_HAS_LAST_BLOCK: + exit = 1; + ret = 0; + break; + default: + exit = 1; + break; + } + } while (!exit); + + if (ret) + pr_err("firmware file format check FAIL\n"); + else + lbtf_deb_fw("firmware file format check PASS\n"); + + return ret; +} + + +static int if_usb_prog_firmware(struct lbtf_private *priv) +{ + struct if_usb_card *cardp = priv->card; + int i = 0; + static int reset_count = 10; + int ret = 0; + + lbtf_deb_enter(LBTF_DEB_USB); + + cardp->priv = priv; + + kernel_param_lock(THIS_MODULE); + ret = request_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev); + if (ret < 0) { + pr_err("request_firmware() failed with %#x\n", ret); + pr_err("firmware %s not found\n", lbtf_fw_name); + kernel_param_unlock(THIS_MODULE); + goto done; + } + kernel_param_unlock(THIS_MODULE); + + if (check_fwfile_format(cardp->fw->data, cardp->fw->size)) + goto release_fw; + +restart: + if (if_usb_submit_rx_urb_fwload(cardp) < 0) { + lbtf_deb_usbd(&cardp->udev->dev, "URB submission is failed\n"); + ret = -1; + goto release_fw; + } + + cardp->bootcmdresp = 0; + do { + int j = 0; + i++; + /* Issue Boot command = 1, Boot from Download-FW */ + if_usb_issue_boot_command(cardp, BOOT_CMD_FW_BY_USB); + /* wait for command response */ + do { + j++; + msleep_interruptible(100); + } while (cardp->bootcmdresp == 0 && j < 10); + } while (cardp->bootcmdresp == 0 && i < 5); + + if (cardp->bootcmdresp <= 0) { + if (--reset_count >= 0) { + if_usb_reset_device(priv); + goto restart; + } + return -1; + } + + i = 0; + + cardp->totalbytes = 0; + cardp->fwlastblksent = 0; + cardp->CRC_OK = 1; + cardp->fwdnldover = 0; + cardp->fwseqnum = -1; + cardp->totalbytes = 0; + cardp->fwfinalblk = 0; + + /* Send the first firmware packet... */ + if_usb_send_fw_pkt(cardp); + + /* ... and wait for the process to complete */ + wait_event_interruptible(cardp->fw_wq, cardp->priv->surpriseremoved || + cardp->fwdnldover); + + del_timer_sync(&cardp->fw_timeout); + usb_kill_urb(cardp->rx_urb); + + if (!cardp->fwdnldover) { + pr_info("failed to load fw, resetting device!\n"); + if (--reset_count >= 0) { + if_usb_reset_device(priv); + goto restart; + } + + pr_info("FW download failure, time = %d ms\n", i * 100); + ret = -1; + goto release_fw; + } + + release_fw: + release_firmware(cardp->fw); + cardp->fw = NULL; + + if_usb_setup_firmware(cardp->priv); + + done: + lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret); + return ret; +} + + +#define if_usb_suspend NULL +#define if_usb_resume NULL + +static struct usb_driver if_usb_driver = { + .name = DRV_NAME, + .probe = if_usb_probe, + .disconnect = if_usb_disconnect, + .id_table = if_usb_table, + .suspend = if_usb_suspend, + .resume = if_usb_resume, + .disable_hub_initiated_lpm = 1, +}; + +module_usb_driver(if_usb_driver); + +MODULE_DESCRIPTION("8388 USB WLAN Thinfirm Driver"); +MODULE_AUTHOR("Cozybit Inc."); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.h b/drivers/net/wireless/marvell/libertas_tf/if_usb.h new file mode 100644 index 000000000..f6dd7373b --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.h @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2008, cozybit Inc. + * Copyright (C) 2003-2006, Marvell International Ltd. + */ +#include <linux/wait.h> +#include <linux/timer.h> + +struct lbtf_private; + +/** + * This file contains definition for USB interface. + */ +#define CMD_TYPE_REQUEST 0xF00DFACE +#define CMD_TYPE_DATA 0xBEADC0DE +#define CMD_TYPE_INDICATION 0xBEEFFACE + +#define BOOT_CMD_FW_BY_USB 0x01 +#define BOOT_CMD_FW_IN_EEPROM 0x02 +#define BOOT_CMD_UPDATE_BOOT2 0x03 +#define BOOT_CMD_UPDATE_FW 0x04 +#define BOOT_CMD_MAGIC_NUMBER 0x4C56524D /* LVRM */ + +struct bootcmd { + __le32 magic; + uint8_t cmd; + uint8_t pad[11]; +}; + +#define BOOT_CMD_RESP_OK 0x0001 +#define BOOT_CMD_RESP_FAIL 0x0000 + +struct bootcmdresp { + __le32 magic; + uint8_t cmd; + uint8_t result; + uint8_t pad[2]; +}; + +/** USB card description structure*/ +struct if_usb_card { + struct usb_device *udev; + struct urb *rx_urb, *tx_urb, *cmd_urb; + struct lbtf_private *priv; + + struct sk_buff *rx_skb; + + uint8_t ep_in; + uint8_t ep_out; + + int8_t bootcmdresp; + + int ep_in_size; + + void *ep_out_buf; + int ep_out_size; + + const struct firmware *fw; + struct timer_list fw_timeout; + wait_queue_head_t fw_wq; + uint32_t fwseqnum; + uint32_t totalbytes; + uint32_t fwlastblksent; + uint8_t CRC_OK; + uint8_t fwdnldover; + uint8_t fwfinalblk; + + __le16 boot2_version; +}; + +/** fwheader */ +struct fwheader { + __le32 dnldcmd; + __le32 baseaddr; + __le32 datalength; + __le32 CRC; +}; + +#define FW_MAX_DATA_BLK_SIZE 600 +/** FWData */ +struct fwdata { + struct fwheader hdr; + __le32 seqnum; + uint8_t data[]; +}; + +/** fwsyncheader */ +struct fwsyncheader { + __le32 cmd; + __le32 seqnum; +}; + +#define FW_HAS_DATA_TO_RECV 0x00000001 +#define FW_HAS_LAST_BLOCK 0x00000004 diff --git a/drivers/net/wireless/marvell/libertas_tf/libertas_tf.h b/drivers/net/wireless/marvell/libertas_tf/libertas_tf.h new file mode 100644 index 000000000..631b5da09 --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/libertas_tf.h @@ -0,0 +1,520 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2008, cozybit Inc. + * Copyright (C) 2007, Red Hat, Inc. + * Copyright (C) 2003-2006, Marvell International Ltd. + */ +#include <linux/spinlock.h> +#include <linux/device.h> +#include <linux/kthread.h> +#include <net/mac80211.h> + +#include "deb_defs.h" + +#ifndef DRV_NAME +#define DRV_NAME "libertas_tf" +#endif + +#define MRVL_DEFAULT_RETRIES 9 +#define MRVL_PER_PACKET_RATE 0x10 +#define MRVL_MAX_BCN_SIZE 440 +#define CMD_OPTION_WAITFORRSP 0x0002 + +/* Return command are almost always the same as the host command, but with + * bit 15 set high. There are a few exceptions, though... + */ +#define CMD_RET(cmd) (0x8000 | cmd) + +/* Command codes */ +#define CMD_GET_HW_SPEC 0x0003 +#define CMD_802_11_RESET 0x0005 +#define CMD_MAC_MULTICAST_ADR 0x0010 +#define CMD_802_11_RADIO_CONTROL 0x001c +#define CMD_802_11_RF_CHANNEL 0x001d +#define CMD_802_11_RF_TX_POWER 0x001e +#define CMD_MAC_CONTROL 0x0028 +#define CMD_802_11_MAC_ADDRESS 0x004d +#define CMD_SET_BOOT2_VER 0x00a5 +#define CMD_802_11_BEACON_CTRL 0x00b0 +#define CMD_802_11_BEACON_SET 0x00cb +#define CMD_802_11_SET_MODE 0x00cc +#define CMD_802_11_SET_BSSID 0x00cd + +#define CMD_ACT_GET 0x0000 +#define CMD_ACT_SET 0x0001 + +/* Define action or option for CMD_802_11_RESET */ +#define CMD_ACT_HALT 0x0003 + +/* Define action or option for CMD_MAC_CONTROL */ +#define CMD_ACT_MAC_RX_ON 0x0001 +#define CMD_ACT_MAC_TX_ON 0x0002 +#define CMD_ACT_MAC_MULTICAST_ENABLE 0x0020 +#define CMD_ACT_MAC_BROADCAST_ENABLE 0x0040 +#define CMD_ACT_MAC_PROMISCUOUS_ENABLE 0x0080 +#define CMD_ACT_MAC_ALL_MULTICAST_ENABLE 0x0100 + +/* Define action or option for CMD_802_11_RADIO_CONTROL */ +#define CMD_TYPE_AUTO_PREAMBLE 0x0001 +#define CMD_TYPE_SHORT_PREAMBLE 0x0002 +#define CMD_TYPE_LONG_PREAMBLE 0x0003 + +#define TURN_ON_RF 0x01 +#define RADIO_ON 0x01 +#define RADIO_OFF 0x00 + +#define SET_AUTO_PREAMBLE 0x05 +#define SET_SHORT_PREAMBLE 0x03 +#define SET_LONG_PREAMBLE 0x01 + +/* Define action or option for CMD_802_11_RF_CHANNEL */ +#define CMD_OPT_802_11_RF_CHANNEL_GET 0x00 +#define CMD_OPT_802_11_RF_CHANNEL_SET 0x01 + +/* Codes for CMD_802_11_SET_MODE */ +enum lbtf_mode { + LBTF_PASSIVE_MODE, + LBTF_STA_MODE, + LBTF_AP_MODE, +}; + +/** Card Event definition */ +#define MACREG_INT_CODE_FIRMWARE_READY 48 +/** Buffer Constants */ + +/* The size of SQ memory PPA, DPA are 8 DWORDs, that keep the physical +* addresses of TxPD buffers. Station has only 8 TxPD available, Whereas +* driver has more local TxPDs. Each TxPD on the host memory is associated +* with a Tx control node. The driver maintains 8 RxPD descriptors for +* station firmware to store Rx packet information. +* +* Current version of MAC has a 32x6 multicast address buffer. +* +* 802.11b can have up to 14 channels, the driver keeps the +* BSSID(MAC address) of each APs or Ad hoc stations it has sensed. +*/ + +#define MRVDRV_MAX_MULTICAST_LIST_SIZE 32 +#define LBS_NUM_CMD_BUFFERS 10 +#define LBS_CMD_BUFFER_SIZE (2 * 1024) +#define MRVDRV_MAX_CHANNEL_SIZE 14 +#define MRVDRV_SNAP_HEADER_LEN 8 + +#define LBS_UPLD_SIZE 2312 +#define DEV_NAME_LEN 32 + +/** Misc constants */ +/* This section defines 802.11 specific contants */ + +#define MRVDRV_MAX_REGION_CODE 6 +/** + * the table to keep region code + */ +#define LBTF_REGDOMAIN_US 0x10 +#define LBTF_REGDOMAIN_CA 0x20 +#define LBTF_REGDOMAIN_EU 0x30 +#define LBTF_REGDOMAIN_SP 0x31 +#define LBTF_REGDOMAIN_FR 0x32 +#define LBTF_REGDOMAIN_JP 0x40 + +#define SBI_EVENT_CAUSE_SHIFT 3 + +/** RxPD status */ + +#define MRVDRV_RXPD_STATUS_OK 0x0001 + + +/* This is for firmware specific length */ +#define EXTRA_LEN 36 + +#define MRVDRV_ETH_TX_PACKET_BUFFER_SIZE \ + (ETH_FRAME_LEN + sizeof(struct txpd) + EXTRA_LEN) + +#define MRVDRV_ETH_RX_PACKET_BUFFER_SIZE \ + (ETH_FRAME_LEN + sizeof(struct rxpd) \ + + MRVDRV_SNAP_HEADER_LEN + EXTRA_LEN) + +#define CMD_F_HOSTCMD (1 << 0) +#define FW_CAPINFO_WPA (1 << 0) + +#define RF_ANTENNA_1 0x1 +#define RF_ANTENNA_2 0x2 +#define RF_ANTENNA_AUTO 0xFFFF + +#define LBTF_EVENT_BCN_SENT 55 + +/** Global Variable Declaration */ +/** mv_ms_type */ +enum mv_ms_type { + MVMS_DAT = 0, + MVMS_CMD = 1, + MVMS_TXDONE = 2, + MVMS_EVENT +}; + +extern struct workqueue_struct *lbtf_wq; + +struct lbtf_private; + +struct lbtf_offset_value { + u32 offset; + u32 value; +}; + +struct channel_range { + u8 regdomain; + u8 start; + u8 end; /* exclusive (channel must be less than end) */ +}; + +struct if_usb_card; + +struct lbtf_ops { + /** Hardware access */ + int (*hw_host_to_card)(struct lbtf_private *priv, u8 type, + u8 *payload, u16 nb); + int (*hw_prog_firmware)(struct lbtf_private *priv); + int (*hw_reset_device)(struct lbtf_private *priv); +}; + +/** Private structure for the MV device */ +struct lbtf_private { + void *card; + struct ieee80211_hw *hw; + const struct lbtf_ops *ops; + + /* Command response buffer */ + u8 cmd_resp_buff[LBS_UPLD_SIZE]; + /* Download sent: + bit0 1/0=data_sent/data_tx_done, + bit1 1/0=cmd_sent/cmd_tx_done, + all other bits reserved 0 */ + struct ieee80211_vif *vif; + + struct work_struct cmd_work; + struct work_struct tx_work; + + /** Wlan adapter data structure*/ + /** STATUS variables */ + u32 fwrelease; + u32 fwcapinfo; + /* protected with big lock */ + + struct mutex lock; + + /** command-related variables */ + u16 seqnum; + /* protected by big lock */ + + struct cmd_ctrl_node *cmd_array; + /** Current command */ + struct cmd_ctrl_node *cur_cmd; + /** command Queues */ + /** Free command buffers */ + struct list_head cmdfreeq; + /** Pending command buffers */ + struct list_head cmdpendingq; + + /** spin locks */ + spinlock_t driver_lock; + + /** Timers */ + struct timer_list command_timer; + int nr_retries; + int cmd_timed_out; + + u8 cmd_response_rxed; + + /** capability Info used in Association, start, join */ + u16 capability; + + /** MAC address information */ + u8 current_addr[ETH_ALEN]; + u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN]; + u32 nr_of_multicastmacaddr; + int cur_freq; + + struct sk_buff *skb_to_tx; + struct sk_buff *tx_skb; + + /** NIC Operation characteristics */ + u16 mac_control; + u16 regioncode; + struct channel_range range; + + u8 radioon; + u32 preamble; + + struct ieee80211_channel channels[14]; + struct ieee80211_rate rates[12]; + struct ieee80211_supported_band band; + struct lbtf_offset_value offsetvalue; + + u8 surpriseremoved; + struct sk_buff_head bc_ps_buf; + + /* Most recently reported noise in dBm */ + s8 noise; +}; + +/* 802.11-related definitions */ + +/* TxPD descriptor */ +struct txpd { + /* Current Tx packet status */ + __le32 tx_status; + /* Tx control */ + __le32 tx_control; + __le32 tx_packet_location; + /* Tx packet length */ + __le16 tx_packet_length; + struct_group_attr(tx_dest_addr, __packed, + /* First 2 byte of destination MAC address */ + u8 tx_dest_addr_high[2]; + /* Last 4 byte of destination MAC address */ + u8 tx_dest_addr_low[4]; + ); + /* Pkt Priority */ + u8 priority; + /* Pkt Trasnit Power control */ + u8 powermgmt; + /* Time the packet has been queued in the driver (units = 2ms) */ + u8 pktdelay_2ms; + /* reserved */ + u8 reserved1; +} __packed; + +/* RxPD Descriptor */ +struct rxpd { + /* Current Rx packet status */ + __le16 status; + + /* SNR */ + u8 snr; + + /* Tx control */ + u8 rx_control; + + /* Pkt length */ + __le16 pkt_len; + + /* Noise Floor */ + u8 nf; + + /* Rx Packet Rate */ + u8 rx_rate; + + /* Pkt addr */ + __le32 pkt_ptr; + + /* Next Rx RxPD addr */ + __le32 next_rxpd_ptr; + + /* Pkt Priority */ + u8 priority; + u8 reserved[3]; +} __packed; + +struct cmd_header { + __le16 command; + __le16 size; + __le16 seqnum; + __le16 result; +} __packed; + +struct cmd_ctrl_node { + struct list_head list; + int result; + /* command response */ + int (*callback)(struct lbtf_private *, + unsigned long, struct cmd_header *); + unsigned long callback_arg; + /* command data */ + struct cmd_header *cmdbuf; + /* wait queue */ + u16 cmdwaitqwoken; + wait_queue_head_t cmdwait_q; +}; + +/* + * Define data structure for CMD_GET_HW_SPEC + * This structure defines the response for the GET_HW_SPEC command + */ +struct cmd_ds_get_hw_spec { + struct cmd_header hdr; + + /* HW Interface version number */ + __le16 hwifversion; + /* HW version number */ + __le16 version; + /* Max number of TxPD FW can handle */ + __le16 nr_txpd; + /* Max no of Multicast address */ + __le16 nr_mcast_adr; + /* MAC address */ + u8 permanentaddr[6]; + + /* region Code */ + __le16 regioncode; + + /* Number of antenna used */ + __le16 nr_antenna; + + /* FW release number, example 0x01030304 = 2.3.4p1 */ + __le32 fwrelease; + + /* Base Address of TxPD queue */ + __le32 wcb_base; + /* Read Pointer of RxPd queue */ + __le32 rxpd_rdptr; + + /* Write Pointer of RxPd queue */ + __le32 rxpd_wrptr; + + /*FW/HW capability */ + __le32 fwcapinfo; +} __packed; + +struct cmd_ds_mac_control { + struct cmd_header hdr; + __le16 action; + u16 reserved; +} __packed; + +struct cmd_ds_802_11_mac_address { + struct cmd_header hdr; + + __le16 action; + uint8_t macadd[ETH_ALEN]; +} __packed; + +struct cmd_ds_mac_multicast_addr { + struct cmd_header hdr; + + __le16 action; + __le16 nr_of_adrs; + u8 maclist[ETH_ALEN * MRVDRV_MAX_MULTICAST_LIST_SIZE]; +} __packed; + +struct cmd_ds_set_mode { + struct cmd_header hdr; + + __le16 mode; +} __packed; + +struct cmd_ds_set_bssid { + struct cmd_header hdr; + + u8 bssid[6]; + u8 activate; +} __packed; + +struct cmd_ds_802_11_radio_control { + struct cmd_header hdr; + + __le16 action; + __le16 control; +} __packed; + + +struct cmd_ds_802_11_rf_channel { + struct cmd_header hdr; + + __le16 action; + __le16 channel; + __le16 rftype; /* unused */ + __le16 reserved; /* unused */ + u8 channellist[32]; /* unused */ +} __packed; + +struct cmd_ds_set_boot2_ver { + struct cmd_header hdr; + + __le16 action; + __le16 version; +} __packed; + +struct cmd_ds_802_11_reset { + struct cmd_header hdr; + + __le16 action; +} __packed; + +struct cmd_ds_802_11_beacon_control { + struct cmd_header hdr; + + __le16 action; + __le16 beacon_enable; + __le16 beacon_period; +} __packed; + +struct cmd_ds_802_11_beacon_set { + struct cmd_header hdr; + + __le16 len; + u8 beacon[MRVL_MAX_BCN_SIZE]; +} __packed; + +struct cmd_ctrl_node; + +/** Function Prototype Declaration */ +void lbtf_set_mac_control(struct lbtf_private *priv); + +int lbtf_free_cmd_buffer(struct lbtf_private *priv); + +int lbtf_allocate_cmd_buffer(struct lbtf_private *priv); +int lbtf_execute_next_command(struct lbtf_private *priv); +int lbtf_set_radio_control(struct lbtf_private *priv); +int lbtf_update_hw_spec(struct lbtf_private *priv); +int lbtf_cmd_set_mac_multicast_addr(struct lbtf_private *priv); +void lbtf_set_mode(struct lbtf_private *priv, enum lbtf_mode mode); +void lbtf_set_bssid(struct lbtf_private *priv, bool activate, const u8 *bssid); +int lbtf_set_mac_address(struct lbtf_private *priv, uint8_t *mac_addr); + +int lbtf_set_channel(struct lbtf_private *priv, u8 channel); + +int lbtf_beacon_set(struct lbtf_private *priv, struct sk_buff *beacon); +int lbtf_beacon_ctrl(struct lbtf_private *priv, bool beacon_enable, + int beacon_int); + + +int lbtf_process_rx_command(struct lbtf_private *priv); +void lbtf_complete_command(struct lbtf_private *priv, struct cmd_ctrl_node *cmd, + int result); +void lbtf_cmd_response_rx(struct lbtf_private *priv); + +/* main.c */ +struct chan_freq_power *lbtf_get_region_cfp_table(u8 region, + int *cfp_no); +struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev, + const struct lbtf_ops *ops); +int lbtf_remove_card(struct lbtf_private *priv); +int lbtf_start_card(struct lbtf_private *priv); +int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb); +void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail); +void lbtf_bcn_sent(struct lbtf_private *priv); + +/* support functions for cmd.c */ +/* lbtf_cmd() infers the size of the buffer to copy data back into, from + the size of the target of the pointer. Since the command to be sent + may often be smaller, that size is set in cmd->size by the caller.*/ +#define lbtf_cmd(priv, cmdnr, cmd, cb, cb_arg) ({ \ + uint16_t __sz = le16_to_cpu((cmd)->hdr.size); \ + (cmd)->hdr.size = cpu_to_le16(sizeof(*(cmd))); \ + __lbtf_cmd(priv, cmdnr, &(cmd)->hdr, __sz, cb, cb_arg); \ +}) + +#define lbtf_cmd_with_response(priv, cmdnr, cmd) \ + lbtf_cmd(priv, cmdnr, cmd, lbtf_cmd_copyback, (unsigned long) (cmd)) + +void lbtf_cmd_async(struct lbtf_private *priv, uint16_t command, + struct cmd_header *in_cmd, int in_cmd_size); + +int __lbtf_cmd(struct lbtf_private *priv, uint16_t command, + struct cmd_header *in_cmd, int in_cmd_size, + int (*callback)(struct lbtf_private *, unsigned long, + struct cmd_header *), + unsigned long callback_arg); + +int lbtf_cmd_copyback(struct lbtf_private *priv, unsigned long extra, + struct cmd_header *resp); diff --git a/drivers/net/wireless/marvell/libertas_tf/main.c b/drivers/net/wireless/marvell/libertas_tf/main.c new file mode 100644 index 000000000..74c4942b9 --- /dev/null +++ b/drivers/net/wireless/marvell/libertas_tf/main.c @@ -0,0 +1,727 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2008, cozybit Inc. + * Copyright (C) 2003-2006, Marvell International Ltd. + */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/hardirq.h> +#include <linux/slab.h> + +#include <linux/etherdevice.h> +#include <linux/module.h> +#include "libertas_tf.h" + +/* thinfirm version: 5.132.X.pX */ +#define LBTF_FW_VER_MIN 0x05840300 +#define LBTF_FW_VER_MAX 0x0584ffff + +/* Module parameters */ +unsigned int lbtf_debug; +EXPORT_SYMBOL_GPL(lbtf_debug); +module_param_named(libertas_tf_debug, lbtf_debug, int, 0644); + +struct workqueue_struct *lbtf_wq; + +static const struct ieee80211_channel lbtf_channels[] = { + { .center_freq = 2412, .hw_value = 1 }, + { .center_freq = 2417, .hw_value = 2 }, + { .center_freq = 2422, .hw_value = 3 }, + { .center_freq = 2427, .hw_value = 4 }, + { .center_freq = 2432, .hw_value = 5 }, + { .center_freq = 2437, .hw_value = 6 }, + { .center_freq = 2442, .hw_value = 7 }, + { .center_freq = 2447, .hw_value = 8 }, + { .center_freq = 2452, .hw_value = 9 }, + { .center_freq = 2457, .hw_value = 10 }, + { .center_freq = 2462, .hw_value = 11 }, + { .center_freq = 2467, .hw_value = 12 }, + { .center_freq = 2472, .hw_value = 13 }, + { .center_freq = 2484, .hw_value = 14 }, +}; + +/* This table contains the hardware specific values for the modulation rates. */ +static const struct ieee80211_rate lbtf_rates[] = { + { .bitrate = 10, + .hw_value = 0, }, + { .bitrate = 20, + .hw_value = 1, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 55, + .hw_value = 2, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 110, + .hw_value = 3, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 60, + .hw_value = 5, + .flags = 0 }, + { .bitrate = 90, + .hw_value = 6, + .flags = 0 }, + { .bitrate = 120, + .hw_value = 7, + .flags = 0 }, + { .bitrate = 180, + .hw_value = 8, + .flags = 0 }, + { .bitrate = 240, + .hw_value = 9, + .flags = 0 }, + { .bitrate = 360, + .hw_value = 10, + .flags = 0 }, + { .bitrate = 480, + .hw_value = 11, + .flags = 0 }, + { .bitrate = 540, + .hw_value = 12, + .flags = 0 }, +}; + +static void lbtf_cmd_work(struct work_struct *work) +{ + struct lbtf_private *priv = container_of(work, struct lbtf_private, + cmd_work); + + lbtf_deb_enter(LBTF_DEB_CMD); + + spin_lock_irq(&priv->driver_lock); + /* command response? */ + if (priv->cmd_response_rxed) { + priv->cmd_response_rxed = 0; + spin_unlock_irq(&priv->driver_lock); + lbtf_process_rx_command(priv); + spin_lock_irq(&priv->driver_lock); + } + + if (priv->cmd_timed_out && priv->cur_cmd) { + struct cmd_ctrl_node *cmdnode = priv->cur_cmd; + + if (++priv->nr_retries > 10) { + lbtf_complete_command(priv, cmdnode, + -ETIMEDOUT); + priv->nr_retries = 0; + } else { + priv->cur_cmd = NULL; + + /* Stick it back at the _top_ of the pending + * queue for immediate resubmission */ + list_add(&cmdnode->list, &priv->cmdpendingq); + } + } + priv->cmd_timed_out = 0; + spin_unlock_irq(&priv->driver_lock); + + /* Execute the next command */ + if (!priv->cur_cmd) + lbtf_execute_next_command(priv); + + lbtf_deb_leave(LBTF_DEB_CMD); +} + +/* + * This function handles the timeout of command sending. + * It will re-send the same command again. + */ +static void command_timer_fn(struct timer_list *t) +{ + struct lbtf_private *priv = from_timer(priv, t, command_timer); + unsigned long flags; + lbtf_deb_enter(LBTF_DEB_CMD); + + spin_lock_irqsave(&priv->driver_lock, flags); + + if (!priv->cur_cmd) { + printk(KERN_DEBUG "libertastf: command timer expired; " + "no pending command\n"); + goto out; + } + + printk(KERN_DEBUG "libertas: command %x timed out\n", + le16_to_cpu(priv->cur_cmd->cmdbuf->command)); + + priv->cmd_timed_out = 1; + queue_work(lbtf_wq, &priv->cmd_work); +out: + spin_unlock_irqrestore(&priv->driver_lock, flags); + lbtf_deb_leave(LBTF_DEB_CMD); +} + +static int lbtf_init_adapter(struct lbtf_private *priv) +{ + lbtf_deb_enter(LBTF_DEB_MAIN); + eth_broadcast_addr(priv->current_addr); + mutex_init(&priv->lock); + + priv->vif = NULL; + timer_setup(&priv->command_timer, command_timer_fn, 0); + + INIT_LIST_HEAD(&priv->cmdfreeq); + INIT_LIST_HEAD(&priv->cmdpendingq); + + spin_lock_init(&priv->driver_lock); + + /* Allocate the command buffers */ + if (lbtf_allocate_cmd_buffer(priv)) + return -1; + + lbtf_deb_leave(LBTF_DEB_MAIN); + return 0; +} + +static void lbtf_free_adapter(struct lbtf_private *priv) +{ + lbtf_deb_enter(LBTF_DEB_MAIN); + lbtf_free_cmd_buffer(priv); + del_timer(&priv->command_timer); + lbtf_deb_leave(LBTF_DEB_MAIN); +} + +static void lbtf_op_tx(struct ieee80211_hw *hw, + struct ieee80211_tx_control *control, + struct sk_buff *skb) +{ + struct lbtf_private *priv = hw->priv; + + priv->skb_to_tx = skb; + queue_work(lbtf_wq, &priv->tx_work); + /* + * queue will be restarted when we receive transmission feedback if + * there are no buffered multicast frames to send + */ + ieee80211_stop_queues(priv->hw); +} + +static void lbtf_tx_work(struct work_struct *work) +{ + struct lbtf_private *priv = container_of(work, struct lbtf_private, + tx_work); + unsigned int len; + struct ieee80211_tx_info *info; + struct txpd *txpd; + struct sk_buff *skb = NULL; + int err; + + lbtf_deb_enter(LBTF_DEB_MACOPS | LBTF_DEB_TX); + + if ((priv->vif->type == NL80211_IFTYPE_AP) && + (!skb_queue_empty(&priv->bc_ps_buf))) + skb = skb_dequeue(&priv->bc_ps_buf); + else if (priv->skb_to_tx) { + skb = priv->skb_to_tx; + priv->skb_to_tx = NULL; + } else { + lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); + return; + } + + len = skb->len; + info = IEEE80211_SKB_CB(skb); + txpd = skb_push(skb, sizeof(struct txpd)); + + if (priv->surpriseremoved) { + dev_kfree_skb_any(skb); + lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); + return; + } + + memset(txpd, 0, sizeof(struct txpd)); + /* Activate per-packet rate selection */ + txpd->tx_control |= cpu_to_le32(MRVL_PER_PACKET_RATE | + ieee80211_get_tx_rate(priv->hw, info)->hw_value); + + /* copy destination address from 802.11 header */ + BUILD_BUG_ON(sizeof(txpd->tx_dest_addr) != ETH_ALEN); + memcpy(&txpd->tx_dest_addr, skb->data + sizeof(struct txpd) + 4, + ETH_ALEN); + txpd->tx_packet_length = cpu_to_le16(len); + txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd)); + lbtf_deb_hex(LBTF_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100)); + BUG_ON(priv->tx_skb); + spin_lock_irq(&priv->driver_lock); + priv->tx_skb = skb; + err = priv->ops->hw_host_to_card(priv, MVMS_DAT, skb->data, skb->len); + spin_unlock_irq(&priv->driver_lock); + if (err) { + dev_kfree_skb_any(skb); + priv->tx_skb = NULL; + pr_err("TX error: %d", err); + } + lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX); +} + +static int lbtf_op_start(struct ieee80211_hw *hw) +{ + struct lbtf_private *priv = hw->priv; + + lbtf_deb_enter(LBTF_DEB_MACOPS); + + priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE; + priv->radioon = RADIO_ON; + priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON; + lbtf_set_mac_control(priv); + lbtf_set_radio_control(priv); + + lbtf_deb_leave(LBTF_DEB_MACOPS); + return 0; +} + +static void lbtf_op_stop(struct ieee80211_hw *hw) +{ + struct lbtf_private *priv = hw->priv; + unsigned long flags; + struct sk_buff *skb; + + struct cmd_ctrl_node *cmdnode; + + lbtf_deb_enter(LBTF_DEB_MACOPS); + + /* Flush pending command nodes */ + spin_lock_irqsave(&priv->driver_lock, flags); + list_for_each_entry(cmdnode, &priv->cmdpendingq, list) { + cmdnode->result = -ENOENT; + cmdnode->cmdwaitqwoken = 1; + wake_up_interruptible(&cmdnode->cmdwait_q); + } + + spin_unlock_irqrestore(&priv->driver_lock, flags); + cancel_work_sync(&priv->cmd_work); + cancel_work_sync(&priv->tx_work); + while ((skb = skb_dequeue(&priv->bc_ps_buf))) + dev_kfree_skb_any(skb); + priv->radioon = RADIO_OFF; + lbtf_set_radio_control(priv); + + lbtf_deb_leave(LBTF_DEB_MACOPS); +} + +static int lbtf_op_add_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct lbtf_private *priv = hw->priv; + lbtf_deb_enter(LBTF_DEB_MACOPS); + if (priv->vif != NULL) + return -EOPNOTSUPP; + + priv->vif = vif; + switch (vif->type) { + case NL80211_IFTYPE_MESH_POINT: + case NL80211_IFTYPE_AP: + lbtf_set_mode(priv, LBTF_AP_MODE); + break; + case NL80211_IFTYPE_STATION: + lbtf_set_mode(priv, LBTF_STA_MODE); + break; + default: + priv->vif = NULL; + return -EOPNOTSUPP; + } + lbtf_set_mac_address(priv, (u8 *) vif->addr); + lbtf_deb_leave(LBTF_DEB_MACOPS); + return 0; +} + +static void lbtf_op_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct lbtf_private *priv = hw->priv; + lbtf_deb_enter(LBTF_DEB_MACOPS); + + if (priv->vif->type == NL80211_IFTYPE_AP || + priv->vif->type == NL80211_IFTYPE_MESH_POINT) + lbtf_beacon_ctrl(priv, 0, 0); + lbtf_set_mode(priv, LBTF_PASSIVE_MODE); + lbtf_set_bssid(priv, 0, NULL); + priv->vif = NULL; + lbtf_deb_leave(LBTF_DEB_MACOPS); +} + +static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed) +{ + struct lbtf_private *priv = hw->priv; + struct ieee80211_conf *conf = &hw->conf; + lbtf_deb_enter(LBTF_DEB_MACOPS); + + if (conf->chandef.chan->center_freq != priv->cur_freq) { + priv->cur_freq = conf->chandef.chan->center_freq; + lbtf_set_channel(priv, conf->chandef.chan->hw_value); + } + lbtf_deb_leave(LBTF_DEB_MACOPS); + return 0; +} + +static u64 lbtf_op_prepare_multicast(struct ieee80211_hw *hw, + struct netdev_hw_addr_list *mc_list) +{ + struct lbtf_private *priv = hw->priv; + int i; + struct netdev_hw_addr *ha; + int mc_count = netdev_hw_addr_list_count(mc_list); + + if (!mc_count || mc_count > MRVDRV_MAX_MULTICAST_LIST_SIZE) + return mc_count; + + priv->nr_of_multicastmacaddr = mc_count; + i = 0; + netdev_hw_addr_list_for_each(ha, mc_list) + memcpy(&priv->multicastlist[i++], ha->addr, ETH_ALEN); + + return mc_count; +} + +#define SUPPORTED_FIF_FLAGS FIF_ALLMULTI +static void lbtf_op_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *new_flags, + u64 multicast) +{ + struct lbtf_private *priv = hw->priv; + int old_mac_control = priv->mac_control; + + lbtf_deb_enter(LBTF_DEB_MACOPS); + + changed_flags &= SUPPORTED_FIF_FLAGS; + *new_flags &= SUPPORTED_FIF_FLAGS; + + if (!changed_flags) { + lbtf_deb_leave(LBTF_DEB_MACOPS); + return; + } + + priv->mac_control &= ~CMD_ACT_MAC_PROMISCUOUS_ENABLE; + if (*new_flags & (FIF_ALLMULTI) || + multicast > MRVDRV_MAX_MULTICAST_LIST_SIZE) { + priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE; + priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE; + } else if (multicast) { + priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE; + priv->mac_control &= ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE; + lbtf_cmd_set_mac_multicast_addr(priv); + } else { + priv->mac_control &= ~(CMD_ACT_MAC_MULTICAST_ENABLE | + CMD_ACT_MAC_ALL_MULTICAST_ENABLE); + if (priv->nr_of_multicastmacaddr) { + priv->nr_of_multicastmacaddr = 0; + lbtf_cmd_set_mac_multicast_addr(priv); + } + } + + + if (priv->mac_control != old_mac_control) + lbtf_set_mac_control(priv); + + lbtf_deb_leave(LBTF_DEB_MACOPS); +} + +static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u64 changes) +{ + struct lbtf_private *priv = hw->priv; + struct sk_buff *beacon; + lbtf_deb_enter(LBTF_DEB_MACOPS); + + if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_INT)) { + switch (priv->vif->type) { + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_MESH_POINT: + beacon = ieee80211_beacon_get(hw, vif, 0); + if (beacon) { + lbtf_beacon_set(priv, beacon); + kfree_skb(beacon); + lbtf_beacon_ctrl(priv, 1, + bss_conf->beacon_int); + } + break; + default: + break; + } + } + + if (changes & BSS_CHANGED_BSSID) { + bool activate = !is_zero_ether_addr(bss_conf->bssid); + lbtf_set_bssid(priv, activate, bss_conf->bssid); + } + + if (changes & BSS_CHANGED_ERP_PREAMBLE) { + if (bss_conf->use_short_preamble) + priv->preamble = CMD_TYPE_SHORT_PREAMBLE; + else + priv->preamble = CMD_TYPE_LONG_PREAMBLE; + lbtf_set_radio_control(priv); + } + + lbtf_deb_leave(LBTF_DEB_MACOPS); +} + +static int lbtf_op_get_survey(struct ieee80211_hw *hw, int idx, + struct survey_info *survey) +{ + struct lbtf_private *priv = hw->priv; + struct ieee80211_conf *conf = &hw->conf; + + if (idx != 0) + return -ENOENT; + + survey->channel = conf->chandef.chan; + survey->filled = SURVEY_INFO_NOISE_DBM; + survey->noise = priv->noise; + + return 0; +} + +static const struct ieee80211_ops lbtf_ops = { + .tx = lbtf_op_tx, + .start = lbtf_op_start, + .stop = lbtf_op_stop, + .add_interface = lbtf_op_add_interface, + .remove_interface = lbtf_op_remove_interface, + .config = lbtf_op_config, + .prepare_multicast = lbtf_op_prepare_multicast, + .configure_filter = lbtf_op_configure_filter, + .bss_info_changed = lbtf_op_bss_info_changed, + .get_survey = lbtf_op_get_survey, +}; + +int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb) +{ + struct ieee80211_rx_status stats; + struct rxpd *prxpd; + int need_padding; + struct ieee80211_hdr *hdr; + + lbtf_deb_enter(LBTF_DEB_RX); + + if (priv->radioon != RADIO_ON) { + lbtf_deb_rx("rx before we turned on the radio"); + goto done; + } + + prxpd = (struct rxpd *) skb->data; + + memset(&stats, 0, sizeof(stats)); + if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) + stats.flag |= RX_FLAG_FAILED_FCS_CRC; + stats.freq = priv->cur_freq; + stats.band = NL80211_BAND_2GHZ; + stats.signal = prxpd->snr - prxpd->nf; + priv->noise = prxpd->nf; + /* Marvell rate index has a hole at value 4 */ + if (prxpd->rx_rate > 4) + --prxpd->rx_rate; + stats.rate_idx = prxpd->rx_rate; + skb_pull(skb, sizeof(struct rxpd)); + + hdr = (struct ieee80211_hdr *)skb->data; + + need_padding = ieee80211_is_data_qos(hdr->frame_control); + need_padding ^= ieee80211_has_a4(hdr->frame_control); + need_padding ^= ieee80211_is_data_qos(hdr->frame_control) && + (*ieee80211_get_qos_ctl(hdr) & + IEEE80211_QOS_CTL_A_MSDU_PRESENT); + + if (need_padding) { + memmove(skb->data + 2, skb->data, skb->len); + skb_reserve(skb, 2); + } + + memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats)); + + lbtf_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n", + skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd)); + lbtf_deb_hex(LBTF_DEB_RX, "RX Data", skb->data, + min_t(unsigned int, skb->len, 100)); + + ieee80211_rx_irqsafe(priv->hw, skb); + +done: + lbtf_deb_leave(LBTF_DEB_RX); + return 0; +} +EXPORT_SYMBOL_GPL(lbtf_rx); + +/* + * lbtf_add_card: Add and initialize the card. + * + * Returns: pointer to struct lbtf_priv. + */ +struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev, + const struct lbtf_ops *ops) +{ + struct ieee80211_hw *hw; + struct lbtf_private *priv = NULL; + + lbtf_deb_enter(LBTF_DEB_MAIN); + + hw = ieee80211_alloc_hw(sizeof(struct lbtf_private), &lbtf_ops); + if (!hw) + goto done; + + priv = hw->priv; + if (lbtf_init_adapter(priv)) + goto err_init_adapter; + + priv->hw = hw; + priv->card = card; + priv->ops = ops; + priv->tx_skb = NULL; + priv->radioon = RADIO_OFF; + + hw->queues = 1; + ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); + ieee80211_hw_set(hw, SIGNAL_DBM); + hw->extra_tx_headroom = sizeof(struct txpd); + memcpy(priv->channels, lbtf_channels, sizeof(lbtf_channels)); + memcpy(priv->rates, lbtf_rates, sizeof(lbtf_rates)); + priv->band.n_bitrates = ARRAY_SIZE(lbtf_rates); + priv->band.bitrates = priv->rates; + priv->band.n_channels = ARRAY_SIZE(lbtf_channels); + priv->band.channels = priv->channels; + hw->wiphy->bands[NL80211_BAND_2GHZ] = &priv->band; + hw->wiphy->interface_modes = + BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_ADHOC); + skb_queue_head_init(&priv->bc_ps_buf); + + wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); + + SET_IEEE80211_DEV(hw, dmdev); + + INIT_WORK(&priv->cmd_work, lbtf_cmd_work); + INIT_WORK(&priv->tx_work, lbtf_tx_work); + + if (priv->ops->hw_prog_firmware(priv)) { + lbtf_deb_usbd(dmdev, "Error programming the firmware\n"); + priv->ops->hw_reset_device(priv); + goto err_init_adapter; + } + + eth_broadcast_addr(priv->current_addr); + if (lbtf_update_hw_spec(priv)) + goto err_init_adapter; + + if (priv->fwrelease < LBTF_FW_VER_MIN || + priv->fwrelease > LBTF_FW_VER_MAX) { + goto err_init_adapter; + } + + /* The firmware seems to start with the radio enabled. Turn it + * off before an actual mac80211 start callback is invoked. + */ + lbtf_set_radio_control(priv); + + if (ieee80211_register_hw(hw)) + goto err_init_adapter; + + dev_info(dmdev, "libertastf: Marvell WLAN 802.11 thinfirm adapter\n"); + goto done; + +err_init_adapter: + lbtf_free_adapter(priv); + ieee80211_free_hw(hw); + priv = NULL; + +done: + lbtf_deb_leave_args(LBTF_DEB_MAIN, "priv %p", priv); + return priv; +} +EXPORT_SYMBOL_GPL(lbtf_add_card); + + +int lbtf_remove_card(struct lbtf_private *priv) +{ + struct ieee80211_hw *hw = priv->hw; + + lbtf_deb_enter(LBTF_DEB_MAIN); + + priv->surpriseremoved = 1; + del_timer(&priv->command_timer); + lbtf_free_adapter(priv); + priv->hw = NULL; + ieee80211_unregister_hw(hw); + ieee80211_free_hw(hw); + + lbtf_deb_leave(LBTF_DEB_MAIN); + return 0; +} +EXPORT_SYMBOL_GPL(lbtf_remove_card); + +void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); + + ieee80211_tx_info_clear_status(info); + /* + * Commented out, otherwise we never go beyond 1Mbit/s using mac80211 + * default pid rc algorithm. + * + * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt; + */ + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail) + info->flags |= IEEE80211_TX_STAT_ACK; + skb_pull(priv->tx_skb, sizeof(struct txpd)); + ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); + priv->tx_skb = NULL; + if (!priv->skb_to_tx && skb_queue_empty(&priv->bc_ps_buf)) + ieee80211_wake_queues(priv->hw); + else + queue_work(lbtf_wq, &priv->tx_work); +} +EXPORT_SYMBOL_GPL(lbtf_send_tx_feedback); + +void lbtf_bcn_sent(struct lbtf_private *priv) +{ + struct sk_buff *skb = NULL; + + if (priv->vif->type != NL80211_IFTYPE_AP) + return; + + if (skb_queue_empty(&priv->bc_ps_buf)) { + bool tx_buff_bc = false; + + while ((skb = ieee80211_get_buffered_bc(priv->hw, priv->vif))) { + skb_queue_tail(&priv->bc_ps_buf, skb); + tx_buff_bc = true; + } + if (tx_buff_bc) { + ieee80211_stop_queues(priv->hw); + queue_work(lbtf_wq, &priv->tx_work); + } + } + + skb = ieee80211_beacon_get(priv->hw, priv->vif, 0); + + if (skb) { + lbtf_beacon_set(priv, skb); + kfree_skb(skb); + } +} +EXPORT_SYMBOL_GPL(lbtf_bcn_sent); + +static int __init lbtf_init_module(void) +{ + lbtf_deb_enter(LBTF_DEB_MAIN); + lbtf_wq = alloc_workqueue("libertastf", WQ_MEM_RECLAIM, 0); + if (lbtf_wq == NULL) { + printk(KERN_ERR "libertastf: couldn't create workqueue\n"); + return -ENOMEM; + } + lbtf_deb_leave(LBTF_DEB_MAIN); + return 0; +} + +static void __exit lbtf_exit_module(void) +{ + lbtf_deb_enter(LBTF_DEB_MAIN); + destroy_workqueue(lbtf_wq); + lbtf_deb_leave(LBTF_DEB_MAIN); +} + +module_init(lbtf_init_module); +module_exit(lbtf_exit_module); + +MODULE_DESCRIPTION("Libertas WLAN Thinfirm Driver Library"); +MODULE_AUTHOR("Cozybit Inc."); +MODULE_LICENSE("GPL"); |