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1829 lines
50 KiB
1829 lines
50 KiB
/* |
|
* NXP Wireless LAN device driver: major functions |
|
* |
|
* Copyright 2011-2020 NXP |
|
* |
|
* This software file (the "File") is distributed by NXP |
|
* under the terms of the GNU General Public License Version 2, June 1991 |
|
* (the "License"). You may use, redistribute and/or modify this File in |
|
* accordance with the terms and conditions of the License, a copy of which |
|
* is available by writing to the Free Software Foundation, Inc., |
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the |
|
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
|
* |
|
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE |
|
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about |
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* this warranty disclaimer. |
|
*/ |
|
|
|
#include <linux/suspend.h> |
|
|
|
#include "main.h" |
|
#include "wmm.h" |
|
#include "cfg80211.h" |
|
#include "11n.h" |
|
|
|
#define VERSION "1.0" |
|
#define MFG_FIRMWARE "mwifiex_mfg.bin" |
|
|
|
static unsigned int debug_mask = MWIFIEX_DEFAULT_DEBUG_MASK; |
|
module_param(debug_mask, uint, 0); |
|
MODULE_PARM_DESC(debug_mask, "bitmap for debug flags"); |
|
|
|
const char driver_version[] = "mwifiex " VERSION " (%s) "; |
|
static char *cal_data_cfg; |
|
module_param(cal_data_cfg, charp, 0); |
|
|
|
static unsigned short driver_mode; |
|
module_param(driver_mode, ushort, 0); |
|
MODULE_PARM_DESC(driver_mode, |
|
"station=0x1(default), ap-sta=0x3, station-p2p=0x5, ap-sta-p2p=0x7"); |
|
|
|
bool mfg_mode; |
|
module_param(mfg_mode, bool, 0); |
|
MODULE_PARM_DESC(mfg_mode, "manufacturing mode enable:1, disable:0"); |
|
|
|
bool aggr_ctrl; |
|
module_param(aggr_ctrl, bool, 0000); |
|
MODULE_PARM_DESC(aggr_ctrl, "usb tx aggregation enable:1, disable:0"); |
|
|
|
const u16 mwifiex_1d_to_wmm_queue[8] = { 1, 0, 0, 1, 2, 2, 3, 3 }; |
|
|
|
/* |
|
* This function registers the device and performs all the necessary |
|
* initializations. |
|
* |
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* The following initialization operations are performed - |
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* - Allocate adapter structure |
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* - Save interface specific operations table in adapter |
|
* - Call interface specific initialization routine |
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* - Allocate private structures |
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* - Set default adapter structure parameters |
|
* - Initialize locks |
|
* |
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* In case of any errors during inittialization, this function also ensures |
|
* proper cleanup before exiting. |
|
*/ |
|
static int mwifiex_register(void *card, struct device *dev, |
|
struct mwifiex_if_ops *if_ops, void **padapter) |
|
{ |
|
struct mwifiex_adapter *adapter; |
|
int i; |
|
|
|
adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); |
|
if (!adapter) |
|
return -ENOMEM; |
|
|
|
*padapter = adapter; |
|
adapter->dev = dev; |
|
adapter->card = card; |
|
|
|
/* Save interface specific operations in adapter */ |
|
memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); |
|
adapter->debug_mask = debug_mask; |
|
|
|
/* card specific initialization has been deferred until now .. */ |
|
if (adapter->if_ops.init_if) |
|
if (adapter->if_ops.init_if(adapter)) |
|
goto error; |
|
|
|
adapter->priv_num = 0; |
|
|
|
for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
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/* Allocate memory for private structure */ |
|
adapter->priv[i] = |
|
kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); |
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if (!adapter->priv[i]) |
|
goto error; |
|
|
|
adapter->priv[i]->adapter = adapter; |
|
adapter->priv_num++; |
|
} |
|
mwifiex_init_lock_list(adapter); |
|
|
|
timer_setup(&adapter->cmd_timer, mwifiex_cmd_timeout_func, 0); |
|
|
|
return 0; |
|
|
|
error: |
|
mwifiex_dbg(adapter, ERROR, |
|
"info: leave mwifiex_register with error\n"); |
|
|
|
for (i = 0; i < adapter->priv_num; i++) |
|
kfree(adapter->priv[i]); |
|
|
|
kfree(adapter); |
|
|
|
return -1; |
|
} |
|
|
|
/* |
|
* This function unregisters the device and performs all the necessary |
|
* cleanups. |
|
* |
|
* The following cleanup operations are performed - |
|
* - Free the timers |
|
* - Free beacon buffers |
|
* - Free private structures |
|
* - Free adapter structure |
|
*/ |
|
static int mwifiex_unregister(struct mwifiex_adapter *adapter) |
|
{ |
|
s32 i; |
|
|
|
if (adapter->if_ops.cleanup_if) |
|
adapter->if_ops.cleanup_if(adapter); |
|
|
|
del_timer_sync(&adapter->cmd_timer); |
|
|
|
/* Free private structures */ |
|
for (i = 0; i < adapter->priv_num; i++) { |
|
if (adapter->priv[i]) { |
|
mwifiex_free_curr_bcn(adapter->priv[i]); |
|
kfree(adapter->priv[i]); |
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} |
|
} |
|
|
|
if (adapter->nd_info) { |
|
for (i = 0 ; i < adapter->nd_info->n_matches ; i++) |
|
kfree(adapter->nd_info->matches[i]); |
|
kfree(adapter->nd_info); |
|
adapter->nd_info = NULL; |
|
} |
|
|
|
kfree(adapter->regd); |
|
|
|
kfree(adapter); |
|
return 0; |
|
} |
|
|
|
void mwifiex_queue_main_work(struct mwifiex_adapter *adapter) |
|
{ |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&adapter->main_proc_lock, flags); |
|
if (adapter->mwifiex_processing) { |
|
adapter->more_task_flag = true; |
|
spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
|
} else { |
|
spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
|
queue_work(adapter->workqueue, &adapter->main_work); |
|
} |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_queue_main_work); |
|
|
|
static void mwifiex_queue_rx_work(struct mwifiex_adapter *adapter) |
|
{ |
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spin_lock_bh(&adapter->rx_proc_lock); |
|
if (adapter->rx_processing) { |
|
spin_unlock_bh(&adapter->rx_proc_lock); |
|
} else { |
|
spin_unlock_bh(&adapter->rx_proc_lock); |
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queue_work(adapter->rx_workqueue, &adapter->rx_work); |
|
} |
|
} |
|
|
|
static int mwifiex_process_rx(struct mwifiex_adapter *adapter) |
|
{ |
|
struct sk_buff *skb; |
|
struct mwifiex_rxinfo *rx_info; |
|
|
|
spin_lock_bh(&adapter->rx_proc_lock); |
|
if (adapter->rx_processing || adapter->rx_locked) { |
|
spin_unlock_bh(&adapter->rx_proc_lock); |
|
goto exit_rx_proc; |
|
} else { |
|
adapter->rx_processing = true; |
|
spin_unlock_bh(&adapter->rx_proc_lock); |
|
} |
|
|
|
/* Check for Rx data */ |
|
while ((skb = skb_dequeue(&adapter->rx_data_q))) { |
|
atomic_dec(&adapter->rx_pending); |
|
if ((adapter->delay_main_work || |
|
adapter->iface_type == MWIFIEX_USB) && |
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(atomic_read(&adapter->rx_pending) < LOW_RX_PENDING)) { |
|
if (adapter->if_ops.submit_rem_rx_urbs) |
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adapter->if_ops.submit_rem_rx_urbs(adapter); |
|
adapter->delay_main_work = false; |
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mwifiex_queue_main_work(adapter); |
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} |
|
rx_info = MWIFIEX_SKB_RXCB(skb); |
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if (rx_info->buf_type == MWIFIEX_TYPE_AGGR_DATA) { |
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if (adapter->if_ops.deaggr_pkt) |
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adapter->if_ops.deaggr_pkt(adapter, skb); |
|
dev_kfree_skb_any(skb); |
|
} else { |
|
mwifiex_handle_rx_packet(adapter, skb); |
|
} |
|
} |
|
spin_lock_bh(&adapter->rx_proc_lock); |
|
adapter->rx_processing = false; |
|
spin_unlock_bh(&adapter->rx_proc_lock); |
|
|
|
exit_rx_proc: |
|
return 0; |
|
} |
|
|
|
/* |
|
* The main process. |
|
* |
|
* This function is the main procedure of the driver and handles various driver |
|
* operations. It runs in a loop and provides the core functionalities. |
|
* |
|
* The main responsibilities of this function are - |
|
* - Ensure concurrency control |
|
* - Handle pending interrupts and call interrupt handlers |
|
* - Wake up the card if required |
|
* - Handle command responses and call response handlers |
|
* - Handle events and call event handlers |
|
* - Execute pending commands |
|
* - Transmit pending data packets |
|
*/ |
|
int mwifiex_main_process(struct mwifiex_adapter *adapter) |
|
{ |
|
int ret = 0; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&adapter->main_proc_lock, flags); |
|
|
|
/* Check if already processing */ |
|
if (adapter->mwifiex_processing || adapter->main_locked) { |
|
adapter->more_task_flag = true; |
|
spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
|
return 0; |
|
} else { |
|
adapter->mwifiex_processing = true; |
|
spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
|
} |
|
process_start: |
|
do { |
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY) |
|
break; |
|
|
|
/* For non-USB interfaces, If we process interrupts first, it |
|
* would increase RX pending even further. Avoid this by |
|
* checking if rx_pending has crossed high threshold and |
|
* schedule rx work queue and then process interrupts. |
|
* For USB interface, there are no interrupts. We already have |
|
* HIGH_RX_PENDING check in usb.c |
|
*/ |
|
if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING && |
|
adapter->iface_type != MWIFIEX_USB) { |
|
adapter->delay_main_work = true; |
|
mwifiex_queue_rx_work(adapter); |
|
break; |
|
} |
|
|
|
/* Handle pending interrupt if any */ |
|
if (adapter->int_status) { |
|
if (adapter->hs_activated) |
|
mwifiex_process_hs_config(adapter); |
|
if (adapter->if_ops.process_int_status) |
|
adapter->if_ops.process_int_status(adapter); |
|
} |
|
|
|
if (adapter->rx_work_enabled && adapter->data_received) |
|
mwifiex_queue_rx_work(adapter); |
|
|
|
/* Need to wake up the card ? */ |
|
if ((adapter->ps_state == PS_STATE_SLEEP) && |
|
(adapter->pm_wakeup_card_req && |
|
!adapter->pm_wakeup_fw_try) && |
|
(is_command_pending(adapter) || |
|
!skb_queue_empty(&adapter->tx_data_q) || |
|
!mwifiex_bypass_txlist_empty(adapter) || |
|
!mwifiex_wmm_lists_empty(adapter))) { |
|
adapter->pm_wakeup_fw_try = true; |
|
mod_timer(&adapter->wakeup_timer, jiffies + (HZ*3)); |
|
adapter->if_ops.wakeup(adapter); |
|
continue; |
|
} |
|
|
|
if (IS_CARD_RX_RCVD(adapter)) { |
|
adapter->data_received = false; |
|
adapter->pm_wakeup_fw_try = false; |
|
del_timer(&adapter->wakeup_timer); |
|
if (adapter->ps_state == PS_STATE_SLEEP) |
|
adapter->ps_state = PS_STATE_AWAKE; |
|
} else { |
|
/* We have tried to wakeup the card already */ |
|
if (adapter->pm_wakeup_fw_try) |
|
break; |
|
if (adapter->ps_state == PS_STATE_PRE_SLEEP) |
|
mwifiex_check_ps_cond(adapter); |
|
|
|
if (adapter->ps_state != PS_STATE_AWAKE) |
|
break; |
|
if (adapter->tx_lock_flag) { |
|
if (adapter->iface_type == MWIFIEX_USB) { |
|
if (!adapter->usb_mc_setup) |
|
break; |
|
} else |
|
break; |
|
} |
|
|
|
if ((!adapter->scan_chan_gap_enabled && |
|
adapter->scan_processing) || adapter->data_sent || |
|
mwifiex_is_tdls_chan_switching |
|
(mwifiex_get_priv(adapter, |
|
MWIFIEX_BSS_ROLE_STA)) || |
|
(mwifiex_wmm_lists_empty(adapter) && |
|
mwifiex_bypass_txlist_empty(adapter) && |
|
skb_queue_empty(&adapter->tx_data_q))) { |
|
if (adapter->cmd_sent || adapter->curr_cmd || |
|
!mwifiex_is_send_cmd_allowed |
|
(mwifiex_get_priv(adapter, |
|
MWIFIEX_BSS_ROLE_STA)) || |
|
(!is_command_pending(adapter))) |
|
break; |
|
} |
|
} |
|
|
|
/* Check for event */ |
|
if (adapter->event_received) { |
|
adapter->event_received = false; |
|
mwifiex_process_event(adapter); |
|
} |
|
|
|
/* Check for Cmd Resp */ |
|
if (adapter->cmd_resp_received) { |
|
adapter->cmd_resp_received = false; |
|
mwifiex_process_cmdresp(adapter); |
|
|
|
/* call mwifiex back when init_fw is done */ |
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { |
|
adapter->hw_status = MWIFIEX_HW_STATUS_READY; |
|
mwifiex_init_fw_complete(adapter); |
|
} |
|
} |
|
|
|
/* Check if we need to confirm Sleep Request |
|
received previously */ |
|
if (adapter->ps_state == PS_STATE_PRE_SLEEP) |
|
mwifiex_check_ps_cond(adapter); |
|
|
|
/* * The ps_state may have been changed during processing of |
|
* Sleep Request event. |
|
*/ |
|
if ((adapter->ps_state == PS_STATE_SLEEP) || |
|
(adapter->ps_state == PS_STATE_PRE_SLEEP) || |
|
(adapter->ps_state == PS_STATE_SLEEP_CFM)) { |
|
continue; |
|
} |
|
|
|
if (adapter->tx_lock_flag) { |
|
if (adapter->iface_type == MWIFIEX_USB) { |
|
if (!adapter->usb_mc_setup) |
|
continue; |
|
} else |
|
continue; |
|
} |
|
|
|
if (!adapter->cmd_sent && !adapter->curr_cmd && |
|
mwifiex_is_send_cmd_allowed |
|
(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) { |
|
if (mwifiex_exec_next_cmd(adapter) == -1) { |
|
ret = -1; |
|
break; |
|
} |
|
} |
|
|
|
/** If USB Multi channel setup ongoing, |
|
* wait for ready to tx data. |
|
*/ |
|
if (adapter->iface_type == MWIFIEX_USB && |
|
adapter->usb_mc_setup) |
|
continue; |
|
|
|
if ((adapter->scan_chan_gap_enabled || |
|
!adapter->scan_processing) && |
|
!adapter->data_sent && |
|
!skb_queue_empty(&adapter->tx_data_q)) { |
|
mwifiex_process_tx_queue(adapter); |
|
if (adapter->hs_activated) { |
|
clear_bit(MWIFIEX_IS_HS_CONFIGURED, |
|
&adapter->work_flags); |
|
mwifiex_hs_activated_event |
|
(mwifiex_get_priv |
|
(adapter, MWIFIEX_BSS_ROLE_ANY), |
|
false); |
|
} |
|
} |
|
|
|
if ((adapter->scan_chan_gap_enabled || |
|
!adapter->scan_processing) && |
|
!adapter->data_sent && |
|
!mwifiex_bypass_txlist_empty(adapter) && |
|
!mwifiex_is_tdls_chan_switching |
|
(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) { |
|
mwifiex_process_bypass_tx(adapter); |
|
if (adapter->hs_activated) { |
|
clear_bit(MWIFIEX_IS_HS_CONFIGURED, |
|
&adapter->work_flags); |
|
mwifiex_hs_activated_event |
|
(mwifiex_get_priv |
|
(adapter, MWIFIEX_BSS_ROLE_ANY), |
|
false); |
|
} |
|
} |
|
|
|
if ((adapter->scan_chan_gap_enabled || |
|
!adapter->scan_processing) && |
|
!adapter->data_sent && !mwifiex_wmm_lists_empty(adapter) && |
|
!mwifiex_is_tdls_chan_switching |
|
(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) { |
|
mwifiex_wmm_process_tx(adapter); |
|
if (adapter->hs_activated) { |
|
clear_bit(MWIFIEX_IS_HS_CONFIGURED, |
|
&adapter->work_flags); |
|
mwifiex_hs_activated_event |
|
(mwifiex_get_priv |
|
(adapter, MWIFIEX_BSS_ROLE_ANY), |
|
false); |
|
} |
|
} |
|
|
|
if (adapter->delay_null_pkt && !adapter->cmd_sent && |
|
!adapter->curr_cmd && !is_command_pending(adapter) && |
|
(mwifiex_wmm_lists_empty(adapter) && |
|
mwifiex_bypass_txlist_empty(adapter) && |
|
skb_queue_empty(&adapter->tx_data_q))) { |
|
if (!mwifiex_send_null_packet |
|
(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), |
|
MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | |
|
MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { |
|
adapter->delay_null_pkt = false; |
|
adapter->ps_state = PS_STATE_SLEEP; |
|
} |
|
break; |
|
} |
|
} while (true); |
|
|
|
spin_lock_irqsave(&adapter->main_proc_lock, flags); |
|
if (adapter->more_task_flag) { |
|
adapter->more_task_flag = false; |
|
spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
|
goto process_start; |
|
} |
|
adapter->mwifiex_processing = false; |
|
spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
|
|
|
return ret; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_main_process); |
|
|
|
/* |
|
* This function frees the adapter structure. |
|
* |
|
* Additionally, this closes the netlink socket, frees the timers |
|
* and private structures. |
|
*/ |
|
static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) |
|
{ |
|
if (!adapter) { |
|
pr_err("%s: adapter is NULL\n", __func__); |
|
return; |
|
} |
|
|
|
mwifiex_unregister(adapter); |
|
pr_debug("info: %s: free adapter\n", __func__); |
|
} |
|
|
|
/* |
|
* This function cancels all works in the queue and destroys |
|
* the main workqueue. |
|
*/ |
|
static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) |
|
{ |
|
if (adapter->workqueue) { |
|
flush_workqueue(adapter->workqueue); |
|
destroy_workqueue(adapter->workqueue); |
|
adapter->workqueue = NULL; |
|
} |
|
|
|
if (adapter->rx_workqueue) { |
|
flush_workqueue(adapter->rx_workqueue); |
|
destroy_workqueue(adapter->rx_workqueue); |
|
adapter->rx_workqueue = NULL; |
|
} |
|
} |
|
|
|
/* |
|
* This function gets firmware and initializes it. |
|
* |
|
* The main initialization steps followed are - |
|
* - Download the correct firmware to card |
|
* - Issue the init commands to firmware |
|
*/ |
|
static int _mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
|
{ |
|
int ret; |
|
char fmt[64]; |
|
struct mwifiex_adapter *adapter = context; |
|
struct mwifiex_fw_image fw; |
|
bool init_failed = false; |
|
struct wireless_dev *wdev; |
|
struct completion *fw_done = adapter->fw_done; |
|
|
|
if (!firmware) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"Failed to get firmware %s\n", adapter->fw_name); |
|
goto err_dnld_fw; |
|
} |
|
|
|
memset(&fw, 0, sizeof(struct mwifiex_fw_image)); |
|
adapter->firmware = firmware; |
|
fw.fw_buf = (u8 *) adapter->firmware->data; |
|
fw.fw_len = adapter->firmware->size; |
|
|
|
if (adapter->if_ops.dnld_fw) { |
|
ret = adapter->if_ops.dnld_fw(adapter, &fw); |
|
} else { |
|
ret = mwifiex_dnld_fw(adapter, &fw); |
|
} |
|
|
|
if (ret == -1) |
|
goto err_dnld_fw; |
|
|
|
mwifiex_dbg(adapter, MSG, "WLAN FW is active\n"); |
|
|
|
if (cal_data_cfg) { |
|
if ((request_firmware(&adapter->cal_data, cal_data_cfg, |
|
adapter->dev)) < 0) |
|
mwifiex_dbg(adapter, ERROR, |
|
"Cal data request_firmware() failed\n"); |
|
} |
|
|
|
/* enable host interrupt after fw dnld is successful */ |
|
if (adapter->if_ops.enable_int) { |
|
if (adapter->if_ops.enable_int(adapter)) |
|
goto err_dnld_fw; |
|
} |
|
|
|
adapter->init_wait_q_woken = false; |
|
ret = mwifiex_init_fw(adapter); |
|
if (ret == -1) { |
|
goto err_init_fw; |
|
} else if (!ret) { |
|
adapter->hw_status = MWIFIEX_HW_STATUS_READY; |
|
goto done; |
|
} |
|
/* Wait for mwifiex_init to complete */ |
|
if (!adapter->mfg_mode) { |
|
wait_event_interruptible(adapter->init_wait_q, |
|
adapter->init_wait_q_woken); |
|
if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
|
goto err_init_fw; |
|
} |
|
|
|
if (!adapter->wiphy) { |
|
if (mwifiex_register_cfg80211(adapter)) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"cannot register with cfg80211\n"); |
|
goto err_init_fw; |
|
} |
|
} |
|
|
|
if (mwifiex_init_channel_scan_gap(adapter)) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"could not init channel stats table\n"); |
|
goto err_init_chan_scan; |
|
} |
|
|
|
if (driver_mode) { |
|
driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK; |
|
driver_mode |= MWIFIEX_DRIVER_MODE_STA; |
|
} |
|
|
|
rtnl_lock(); |
|
wiphy_lock(adapter->wiphy); |
|
/* Create station interface by default */ |
|
wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", NET_NAME_ENUM, |
|
NL80211_IFTYPE_STATION, NULL); |
|
if (IS_ERR(wdev)) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"cannot create default STA interface\n"); |
|
wiphy_unlock(adapter->wiphy); |
|
rtnl_unlock(); |
|
goto err_add_intf; |
|
} |
|
|
|
if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) { |
|
wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d", NET_NAME_ENUM, |
|
NL80211_IFTYPE_AP, NULL); |
|
if (IS_ERR(wdev)) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"cannot create AP interface\n"); |
|
wiphy_unlock(adapter->wiphy); |
|
rtnl_unlock(); |
|
goto err_add_intf; |
|
} |
|
} |
|
|
|
if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) { |
|
wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d", NET_NAME_ENUM, |
|
NL80211_IFTYPE_P2P_CLIENT, NULL); |
|
if (IS_ERR(wdev)) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"cannot create p2p client interface\n"); |
|
wiphy_unlock(adapter->wiphy); |
|
rtnl_unlock(); |
|
goto err_add_intf; |
|
} |
|
} |
|
wiphy_unlock(adapter->wiphy); |
|
rtnl_unlock(); |
|
|
|
mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); |
|
mwifiex_dbg(adapter, MSG, "driver_version = %s\n", fmt); |
|
adapter->is_up = true; |
|
goto done; |
|
|
|
err_add_intf: |
|
vfree(adapter->chan_stats); |
|
err_init_chan_scan: |
|
wiphy_unregister(adapter->wiphy); |
|
wiphy_free(adapter->wiphy); |
|
err_init_fw: |
|
if (adapter->if_ops.disable_int) |
|
adapter->if_ops.disable_int(adapter); |
|
err_dnld_fw: |
|
mwifiex_dbg(adapter, ERROR, |
|
"info: %s: unregister device\n", __func__); |
|
if (adapter->if_ops.unregister_dev) |
|
adapter->if_ops.unregister_dev(adapter); |
|
|
|
set_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags); |
|
mwifiex_terminate_workqueue(adapter); |
|
|
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
|
pr_debug("info: %s: shutdown mwifiex\n", __func__); |
|
mwifiex_shutdown_drv(adapter); |
|
mwifiex_free_cmd_buffers(adapter); |
|
} |
|
|
|
init_failed = true; |
|
done: |
|
if (adapter->cal_data) { |
|
release_firmware(adapter->cal_data); |
|
adapter->cal_data = NULL; |
|
} |
|
if (adapter->firmware) { |
|
release_firmware(adapter->firmware); |
|
adapter->firmware = NULL; |
|
} |
|
if (init_failed) { |
|
if (adapter->irq_wakeup >= 0) |
|
device_init_wakeup(adapter->dev, false); |
|
mwifiex_free_adapter(adapter); |
|
} |
|
/* Tell all current and future waiters we're finished */ |
|
complete_all(fw_done); |
|
|
|
return init_failed ? -EIO : 0; |
|
} |
|
|
|
static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
|
{ |
|
_mwifiex_fw_dpc(firmware, context); |
|
} |
|
|
|
/* |
|
* This function gets the firmware and (if called asynchronously) kicks off the |
|
* HW init when done. |
|
*/ |
|
static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter, |
|
bool req_fw_nowait) |
|
{ |
|
int ret; |
|
|
|
/* Override default firmware with manufacturing one if |
|
* manufacturing mode is enabled |
|
*/ |
|
if (mfg_mode) { |
|
if (strlcpy(adapter->fw_name, MFG_FIRMWARE, |
|
sizeof(adapter->fw_name)) >= |
|
sizeof(adapter->fw_name)) { |
|
pr_err("%s: fw_name too long!\n", __func__); |
|
return -1; |
|
} |
|
} |
|
|
|
if (req_fw_nowait) { |
|
ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
|
adapter->dev, GFP_KERNEL, adapter, |
|
mwifiex_fw_dpc); |
|
} else { |
|
ret = request_firmware(&adapter->firmware, |
|
adapter->fw_name, |
|
adapter->dev); |
|
} |
|
|
|
if (ret < 0) |
|
mwifiex_dbg(adapter, ERROR, "request_firmware%s error %d\n", |
|
req_fw_nowait ? "_nowait" : "", ret); |
|
return ret; |
|
} |
|
|
|
/* |
|
* CFG802.11 network device handler for open. |
|
* |
|
* Starts the data queue. |
|
*/ |
|
static int |
|
mwifiex_open(struct net_device *dev) |
|
{ |
|
netif_carrier_off(dev); |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* CFG802.11 network device handler for close. |
|
*/ |
|
static int |
|
mwifiex_close(struct net_device *dev) |
|
{ |
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
|
|
|
if (priv->scan_request) { |
|
struct cfg80211_scan_info info = { |
|
.aborted = true, |
|
}; |
|
|
|
mwifiex_dbg(priv->adapter, INFO, |
|
"aborting scan on ndo_stop\n"); |
|
cfg80211_scan_done(priv->scan_request, &info); |
|
priv->scan_request = NULL; |
|
priv->scan_aborting = true; |
|
} |
|
|
|
if (priv->sched_scanning) { |
|
mwifiex_dbg(priv->adapter, INFO, |
|
"aborting bgscan on ndo_stop\n"); |
|
mwifiex_stop_bg_scan(priv); |
|
cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static bool |
|
mwifiex_bypass_tx_queue(struct mwifiex_private *priv, |
|
struct sk_buff *skb) |
|
{ |
|
struct ethhdr *eth_hdr = (struct ethhdr *)skb->data; |
|
|
|
if (ntohs(eth_hdr->h_proto) == ETH_P_PAE || |
|
mwifiex_is_skb_mgmt_frame(skb) || |
|
(GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA && |
|
ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && |
|
(ntohs(eth_hdr->h_proto) == ETH_P_TDLS))) { |
|
mwifiex_dbg(priv->adapter, DATA, |
|
"bypass txqueue; eth type %#x, mgmt %d\n", |
|
ntohs(eth_hdr->h_proto), |
|
mwifiex_is_skb_mgmt_frame(skb)); |
|
return true; |
|
} |
|
|
|
return false; |
|
} |
|
/* |
|
* Add buffer into wmm tx queue and queue work to transmit it. |
|
*/ |
|
int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) |
|
{ |
|
struct netdev_queue *txq; |
|
int index = mwifiex_1d_to_wmm_queue[skb->priority]; |
|
|
|
if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { |
|
txq = netdev_get_tx_queue(priv->netdev, index); |
|
if (!netif_tx_queue_stopped(txq)) { |
|
netif_tx_stop_queue(txq); |
|
mwifiex_dbg(priv->adapter, DATA, |
|
"stop queue: %d\n", index); |
|
} |
|
} |
|
|
|
if (mwifiex_bypass_tx_queue(priv, skb)) { |
|
atomic_inc(&priv->adapter->tx_pending); |
|
atomic_inc(&priv->adapter->bypass_tx_pending); |
|
mwifiex_wmm_add_buf_bypass_txqueue(priv, skb); |
|
} else { |
|
atomic_inc(&priv->adapter->tx_pending); |
|
mwifiex_wmm_add_buf_txqueue(priv, skb); |
|
} |
|
|
|
mwifiex_queue_main_work(priv->adapter); |
|
|
|
return 0; |
|
} |
|
|
|
struct sk_buff * |
|
mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv, |
|
struct sk_buff *skb, u8 flag, u64 *cookie) |
|
{ |
|
struct sk_buff *orig_skb = skb; |
|
struct mwifiex_txinfo *tx_info, *orig_tx_info; |
|
|
|
skb = skb_clone(skb, GFP_ATOMIC); |
|
if (skb) { |
|
int id; |
|
|
|
spin_lock_bh(&priv->ack_status_lock); |
|
id = idr_alloc(&priv->ack_status_frames, orig_skb, |
|
1, 0x10, GFP_ATOMIC); |
|
spin_unlock_bh(&priv->ack_status_lock); |
|
|
|
if (id >= 0) { |
|
tx_info = MWIFIEX_SKB_TXCB(skb); |
|
tx_info->ack_frame_id = id; |
|
tx_info->flags |= flag; |
|
orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb); |
|
orig_tx_info->ack_frame_id = id; |
|
orig_tx_info->flags |= flag; |
|
|
|
if (flag == MWIFIEX_BUF_FLAG_ACTION_TX_STATUS && cookie) |
|
orig_tx_info->cookie = *cookie; |
|
|
|
} else if (skb_shared(skb)) { |
|
kfree_skb(orig_skb); |
|
} else { |
|
kfree_skb(skb); |
|
skb = orig_skb; |
|
} |
|
} else { |
|
/* couldn't clone -- lose tx status ... */ |
|
skb = orig_skb; |
|
} |
|
|
|
return skb; |
|
} |
|
|
|
/* |
|
* CFG802.11 network device handler for data transmission. |
|
*/ |
|
static netdev_tx_t |
|
mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
|
{ |
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
|
struct sk_buff *new_skb; |
|
struct mwifiex_txinfo *tx_info; |
|
bool multicast; |
|
|
|
mwifiex_dbg(priv->adapter, DATA, |
|
"data: %lu BSS(%d-%d): Data <= kernel\n", |
|
jiffies, priv->bss_type, priv->bss_num); |
|
|
|
if (test_bit(MWIFIEX_SURPRISE_REMOVED, &priv->adapter->work_flags)) { |
|
kfree_skb(skb); |
|
priv->stats.tx_dropped++; |
|
return 0; |
|
} |
|
if (!skb->len || (skb->len > ETH_FRAME_LEN)) { |
|
mwifiex_dbg(priv->adapter, ERROR, |
|
"Tx: bad skb len %d\n", skb->len); |
|
kfree_skb(skb); |
|
priv->stats.tx_dropped++; |
|
return 0; |
|
} |
|
if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { |
|
mwifiex_dbg(priv->adapter, DATA, |
|
"data: Tx: insufficient skb headroom %d\n", |
|
skb_headroom(skb)); |
|
/* Insufficient skb headroom - allocate a new skb */ |
|
new_skb = |
|
skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); |
|
if (unlikely(!new_skb)) { |
|
mwifiex_dbg(priv->adapter, ERROR, |
|
"Tx: cannot alloca new_skb\n"); |
|
kfree_skb(skb); |
|
priv->stats.tx_dropped++; |
|
return 0; |
|
} |
|
kfree_skb(skb); |
|
skb = new_skb; |
|
mwifiex_dbg(priv->adapter, INFO, |
|
"info: new skb headroomd %d\n", |
|
skb_headroom(skb)); |
|
} |
|
|
|
tx_info = MWIFIEX_SKB_TXCB(skb); |
|
memset(tx_info, 0, sizeof(*tx_info)); |
|
tx_info->bss_num = priv->bss_num; |
|
tx_info->bss_type = priv->bss_type; |
|
tx_info->pkt_len = skb->len; |
|
|
|
multicast = is_multicast_ether_addr(skb->data); |
|
|
|
if (unlikely(!multicast && skb->sk && |
|
skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS && |
|
priv->adapter->fw_api_ver == MWIFIEX_FW_V15)) |
|
skb = mwifiex_clone_skb_for_tx_status(priv, |
|
skb, |
|
MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS, NULL); |
|
|
|
/* Record the current time the packet was queued; used to |
|
* determine the amount of time the packet was queued in |
|
* the driver before it was sent to the firmware. |
|
* The delay is then sent along with the packet to the |
|
* firmware for aggregate delay calculation for stats and |
|
* MSDU lifetime expiry. |
|
*/ |
|
__net_timestamp(skb); |
|
|
|
if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && |
|
priv->bss_type == MWIFIEX_BSS_TYPE_STA && |
|
!ether_addr_equal_unaligned(priv->cfg_bssid, skb->data)) { |
|
if (priv->adapter->auto_tdls && priv->check_tdls_tx) |
|
mwifiex_tdls_check_tx(priv, skb); |
|
} |
|
|
|
mwifiex_queue_tx_pkt(priv, skb); |
|
|
|
return 0; |
|
} |
|
|
|
int mwifiex_set_mac_address(struct mwifiex_private *priv, |
|
struct net_device *dev, bool external, |
|
u8 *new_mac) |
|
{ |
|
int ret; |
|
u64 mac_addr, old_mac_addr; |
|
|
|
old_mac_addr = ether_addr_to_u64(priv->curr_addr); |
|
|
|
if (external) { |
|
mac_addr = ether_addr_to_u64(new_mac); |
|
} else { |
|
/* Internal mac address change */ |
|
if (priv->bss_type == MWIFIEX_BSS_TYPE_ANY) |
|
return -EOPNOTSUPP; |
|
|
|
mac_addr = old_mac_addr; |
|
|
|
if (priv->bss_type == MWIFIEX_BSS_TYPE_P2P) { |
|
mac_addr |= BIT_ULL(MWIFIEX_MAC_LOCAL_ADMIN_BIT); |
|
mac_addr += priv->bss_num; |
|
} else if (priv->adapter->priv[0] != priv) { |
|
/* Set mac address based on bss_type/bss_num */ |
|
mac_addr ^= BIT_ULL(priv->bss_type + 8); |
|
mac_addr += priv->bss_num; |
|
} |
|
} |
|
|
|
u64_to_ether_addr(mac_addr, priv->curr_addr); |
|
|
|
/* Send request to firmware */ |
|
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
|
HostCmd_ACT_GEN_SET, 0, NULL, true); |
|
|
|
if (ret) { |
|
u64_to_ether_addr(old_mac_addr, priv->curr_addr); |
|
mwifiex_dbg(priv->adapter, ERROR, |
|
"set mac address failed: ret=%d\n", ret); |
|
return ret; |
|
} |
|
|
|
ether_addr_copy(dev->dev_addr, priv->curr_addr); |
|
return 0; |
|
} |
|
|
|
/* CFG802.11 network device handler for setting MAC address. |
|
*/ |
|
static int |
|
mwifiex_ndo_set_mac_address(struct net_device *dev, void *addr) |
|
{ |
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
|
struct sockaddr *hw_addr = addr; |
|
|
|
return mwifiex_set_mac_address(priv, dev, true, hw_addr->sa_data); |
|
} |
|
|
|
/* |
|
* CFG802.11 network device handler for setting multicast list. |
|
*/ |
|
static void mwifiex_set_multicast_list(struct net_device *dev) |
|
{ |
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
|
struct mwifiex_multicast_list mcast_list; |
|
|
|
if (dev->flags & IFF_PROMISC) { |
|
mcast_list.mode = MWIFIEX_PROMISC_MODE; |
|
} else if (dev->flags & IFF_ALLMULTI || |
|
netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { |
|
mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; |
|
} else { |
|
mcast_list.mode = MWIFIEX_MULTICAST_MODE; |
|
mcast_list.num_multicast_addr = |
|
mwifiex_copy_mcast_addr(&mcast_list, dev); |
|
} |
|
mwifiex_request_set_multicast_list(priv, &mcast_list); |
|
} |
|
|
|
/* |
|
* CFG802.11 network device handler for transmission timeout. |
|
*/ |
|
static void |
|
mwifiex_tx_timeout(struct net_device *dev, unsigned int txqueue) |
|
{ |
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
|
|
|
priv->num_tx_timeout++; |
|
priv->tx_timeout_cnt++; |
|
mwifiex_dbg(priv->adapter, ERROR, |
|
"%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", |
|
jiffies, priv->tx_timeout_cnt, priv->bss_type, |
|
priv->bss_num); |
|
mwifiex_set_trans_start(dev); |
|
|
|
if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && |
|
priv->adapter->if_ops.card_reset) { |
|
mwifiex_dbg(priv->adapter, ERROR, |
|
"tx_timeout_cnt exceeds threshold.\t" |
|
"Triggering card reset!\n"); |
|
priv->adapter->if_ops.card_reset(priv->adapter); |
|
} |
|
} |
|
|
|
void mwifiex_multi_chan_resync(struct mwifiex_adapter *adapter) |
|
{ |
|
struct usb_card_rec *card = adapter->card; |
|
struct mwifiex_private *priv; |
|
u16 tx_buf_size; |
|
int i, ret; |
|
|
|
card->mc_resync_flag = true; |
|
for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { |
|
if (atomic_read(&card->port[i].tx_data_urb_pending)) { |
|
mwifiex_dbg(adapter, WARN, "pending data urb in sys\n"); |
|
return; |
|
} |
|
} |
|
|
|
card->mc_resync_flag = false; |
|
tx_buf_size = 0xffff; |
|
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
|
ret = mwifiex_send_cmd(priv, HostCmd_CMD_RECONFIGURE_TX_BUFF, |
|
HostCmd_ACT_GEN_SET, 0, &tx_buf_size, false); |
|
if (ret) |
|
mwifiex_dbg(adapter, ERROR, |
|
"send reconfig tx buf size cmd err\n"); |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_multi_chan_resync); |
|
|
|
void mwifiex_upload_device_dump(struct mwifiex_adapter *adapter) |
|
{ |
|
/* Dump all the memory data into single file, a userspace script will |
|
* be used to split all the memory data to multiple files |
|
*/ |
|
mwifiex_dbg(adapter, MSG, |
|
"== mwifiex dump information to /sys/class/devcoredump start\n"); |
|
dev_coredumpv(adapter->dev, adapter->devdump_data, adapter->devdump_len, |
|
GFP_KERNEL); |
|
mwifiex_dbg(adapter, MSG, |
|
"== mwifiex dump information to /sys/class/devcoredump end\n"); |
|
|
|
/* Device dump data will be freed in device coredump release function |
|
* after 5 min. Here reset adapter->devdump_data and ->devdump_len |
|
* to avoid it been accidentally reused. |
|
*/ |
|
adapter->devdump_data = NULL; |
|
adapter->devdump_len = 0; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_upload_device_dump); |
|
|
|
void mwifiex_drv_info_dump(struct mwifiex_adapter *adapter) |
|
{ |
|
char *p; |
|
char drv_version[64]; |
|
struct usb_card_rec *cardp; |
|
struct sdio_mmc_card *sdio_card; |
|
struct mwifiex_private *priv; |
|
int i, idx; |
|
struct netdev_queue *txq; |
|
struct mwifiex_debug_info *debug_info; |
|
|
|
mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump start===\n"); |
|
|
|
p = adapter->devdump_data; |
|
strcpy(p, "========Start dump driverinfo========\n"); |
|
p += strlen("========Start dump driverinfo========\n"); |
|
p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); |
|
|
|
mwifiex_drv_get_driver_version(adapter, drv_version, |
|
sizeof(drv_version) - 1); |
|
p += sprintf(p, "driver_version = %s\n", drv_version); |
|
|
|
if (adapter->iface_type == MWIFIEX_USB) { |
|
cardp = (struct usb_card_rec *)adapter->card; |
|
p += sprintf(p, "tx_cmd_urb_pending = %d\n", |
|
atomic_read(&cardp->tx_cmd_urb_pending)); |
|
p += sprintf(p, "tx_data_urb_pending_port_0 = %d\n", |
|
atomic_read(&cardp->port[0].tx_data_urb_pending)); |
|
p += sprintf(p, "tx_data_urb_pending_port_1 = %d\n", |
|
atomic_read(&cardp->port[1].tx_data_urb_pending)); |
|
p += sprintf(p, "rx_cmd_urb_pending = %d\n", |
|
atomic_read(&cardp->rx_cmd_urb_pending)); |
|
p += sprintf(p, "rx_data_urb_pending = %d\n", |
|
atomic_read(&cardp->rx_data_urb_pending)); |
|
} |
|
|
|
p += sprintf(p, "tx_pending = %d\n", |
|
atomic_read(&adapter->tx_pending)); |
|
p += sprintf(p, "rx_pending = %d\n", |
|
atomic_read(&adapter->rx_pending)); |
|
|
|
if (adapter->iface_type == MWIFIEX_SDIO) { |
|
sdio_card = (struct sdio_mmc_card *)adapter->card; |
|
p += sprintf(p, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n", |
|
sdio_card->mp_rd_bitmap, sdio_card->curr_rd_port); |
|
p += sprintf(p, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n", |
|
sdio_card->mp_wr_bitmap, sdio_card->curr_wr_port); |
|
} |
|
|
|
for (i = 0; i < adapter->priv_num; i++) { |
|
if (!adapter->priv[i] || !adapter->priv[i]->netdev) |
|
continue; |
|
priv = adapter->priv[i]; |
|
p += sprintf(p, "\n[interface : \"%s\"]\n", |
|
priv->netdev->name); |
|
p += sprintf(p, "wmm_tx_pending[0] = %d\n", |
|
atomic_read(&priv->wmm_tx_pending[0])); |
|
p += sprintf(p, "wmm_tx_pending[1] = %d\n", |
|
atomic_read(&priv->wmm_tx_pending[1])); |
|
p += sprintf(p, "wmm_tx_pending[2] = %d\n", |
|
atomic_read(&priv->wmm_tx_pending[2])); |
|
p += sprintf(p, "wmm_tx_pending[3] = %d\n", |
|
atomic_read(&priv->wmm_tx_pending[3])); |
|
p += sprintf(p, "media_state=\"%s\"\n", !priv->media_connected ? |
|
"Disconnected" : "Connected"); |
|
p += sprintf(p, "carrier %s\n", (netif_carrier_ok(priv->netdev) |
|
? "on" : "off")); |
|
for (idx = 0; idx < priv->netdev->num_tx_queues; idx++) { |
|
txq = netdev_get_tx_queue(priv->netdev, idx); |
|
p += sprintf(p, "tx queue %d:%s ", idx, |
|
netif_tx_queue_stopped(txq) ? |
|
"stopped" : "started"); |
|
} |
|
p += sprintf(p, "\n%s: num_tx_timeout = %d\n", |
|
priv->netdev->name, priv->num_tx_timeout); |
|
} |
|
|
|
if (adapter->iface_type == MWIFIEX_SDIO || |
|
adapter->iface_type == MWIFIEX_PCIE) { |
|
p += sprintf(p, "\n=== %s register dump===\n", |
|
adapter->iface_type == MWIFIEX_SDIO ? |
|
"SDIO" : "PCIE"); |
|
if (adapter->if_ops.reg_dump) |
|
p += adapter->if_ops.reg_dump(adapter, p); |
|
} |
|
p += sprintf(p, "\n=== more debug information\n"); |
|
debug_info = kzalloc(sizeof(*debug_info), GFP_KERNEL); |
|
if (debug_info) { |
|
for (i = 0; i < adapter->priv_num; i++) { |
|
if (!adapter->priv[i] || !adapter->priv[i]->netdev) |
|
continue; |
|
priv = adapter->priv[i]; |
|
mwifiex_get_debug_info(priv, debug_info); |
|
p += mwifiex_debug_info_to_buffer(priv, p, debug_info); |
|
break; |
|
} |
|
kfree(debug_info); |
|
} |
|
|
|
strcpy(p, "\n========End dump========\n"); |
|
p += strlen("\n========End dump========\n"); |
|
mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump end===\n"); |
|
adapter->devdump_len = p - (char *)adapter->devdump_data; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_drv_info_dump); |
|
|
|
void mwifiex_prepare_fw_dump_info(struct mwifiex_adapter *adapter) |
|
{ |
|
u8 idx; |
|
char *fw_dump_ptr; |
|
u32 dump_len = 0; |
|
|
|
for (idx = 0; idx < adapter->num_mem_types; idx++) { |
|
struct memory_type_mapping *entry = |
|
&adapter->mem_type_mapping_tbl[idx]; |
|
|
|
if (entry->mem_ptr) { |
|
dump_len += (strlen("========Start dump ") + |
|
strlen(entry->mem_name) + |
|
strlen("========\n") + |
|
(entry->mem_size + 1) + |
|
strlen("\n========End dump========\n")); |
|
} |
|
} |
|
|
|
if (dump_len + 1 + adapter->devdump_len > MWIFIEX_FW_DUMP_SIZE) { |
|
/* Realloc in case buffer overflow */ |
|
fw_dump_ptr = vzalloc(dump_len + 1 + adapter->devdump_len); |
|
mwifiex_dbg(adapter, MSG, "Realloc device dump data.\n"); |
|
if (!fw_dump_ptr) { |
|
vfree(adapter->devdump_data); |
|
mwifiex_dbg(adapter, ERROR, |
|
"vzalloc devdump data failure!\n"); |
|
return; |
|
} |
|
|
|
memmove(fw_dump_ptr, adapter->devdump_data, |
|
adapter->devdump_len); |
|
vfree(adapter->devdump_data); |
|
adapter->devdump_data = fw_dump_ptr; |
|
} |
|
|
|
fw_dump_ptr = (char *)adapter->devdump_data + adapter->devdump_len; |
|
|
|
for (idx = 0; idx < adapter->num_mem_types; idx++) { |
|
struct memory_type_mapping *entry = |
|
&adapter->mem_type_mapping_tbl[idx]; |
|
|
|
if (entry->mem_ptr) { |
|
strcpy(fw_dump_ptr, "========Start dump "); |
|
fw_dump_ptr += strlen("========Start dump "); |
|
|
|
strcpy(fw_dump_ptr, entry->mem_name); |
|
fw_dump_ptr += strlen(entry->mem_name); |
|
|
|
strcpy(fw_dump_ptr, "========\n"); |
|
fw_dump_ptr += strlen("========\n"); |
|
|
|
memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size); |
|
fw_dump_ptr += entry->mem_size; |
|
|
|
strcpy(fw_dump_ptr, "\n========End dump========\n"); |
|
fw_dump_ptr += strlen("\n========End dump========\n"); |
|
} |
|
} |
|
|
|
adapter->devdump_len = fw_dump_ptr - (char *)adapter->devdump_data; |
|
|
|
for (idx = 0; idx < adapter->num_mem_types; idx++) { |
|
struct memory_type_mapping *entry = |
|
&adapter->mem_type_mapping_tbl[idx]; |
|
|
|
vfree(entry->mem_ptr); |
|
entry->mem_ptr = NULL; |
|
entry->mem_size = 0; |
|
} |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_prepare_fw_dump_info); |
|
|
|
/* |
|
* CFG802.11 network device handler for statistics retrieval. |
|
*/ |
|
static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) |
|
{ |
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
|
|
|
return &priv->stats; |
|
} |
|
|
|
static u16 |
|
mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
|
struct net_device *sb_dev) |
|
{ |
|
skb->priority = cfg80211_classify8021d(skb, NULL); |
|
return mwifiex_1d_to_wmm_queue[skb->priority]; |
|
} |
|
|
|
/* Network device handlers */ |
|
static const struct net_device_ops mwifiex_netdev_ops = { |
|
.ndo_open = mwifiex_open, |
|
.ndo_stop = mwifiex_close, |
|
.ndo_start_xmit = mwifiex_hard_start_xmit, |
|
.ndo_set_mac_address = mwifiex_ndo_set_mac_address, |
|
.ndo_validate_addr = eth_validate_addr, |
|
.ndo_tx_timeout = mwifiex_tx_timeout, |
|
.ndo_get_stats = mwifiex_get_stats, |
|
.ndo_set_rx_mode = mwifiex_set_multicast_list, |
|
.ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
|
}; |
|
|
|
/* |
|
* This function initializes the private structure parameters. |
|
* |
|
* The following wait queues are initialized - |
|
* - IOCTL wait queue |
|
* - Command wait queue |
|
* - Statistics wait queue |
|
* |
|
* ...and the following default parameters are set - |
|
* - Current key index : Set to 0 |
|
* - Rate index : Set to auto |
|
* - Media connected : Set to disconnected |
|
* - Adhoc link sensed : Set to false |
|
* - Nick name : Set to null |
|
* - Number of Tx timeout : Set to 0 |
|
* - Device address : Set to current address |
|
* - Rx histogram statistc : Set to 0 |
|
* |
|
* In addition, the CFG80211 work queue is also created. |
|
*/ |
|
void mwifiex_init_priv_params(struct mwifiex_private *priv, |
|
struct net_device *dev) |
|
{ |
|
dev->netdev_ops = &mwifiex_netdev_ops; |
|
dev->needs_free_netdev = true; |
|
/* Initialize private structure */ |
|
priv->current_key_index = 0; |
|
priv->media_connected = false; |
|
memset(priv->mgmt_ie, 0, |
|
sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); |
|
priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
|
priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; |
|
priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; |
|
priv->gen_idx = MWIFIEX_AUTO_IDX_MASK; |
|
priv->num_tx_timeout = 0; |
|
if (is_valid_ether_addr(dev->dev_addr)) |
|
ether_addr_copy(priv->curr_addr, dev->dev_addr); |
|
else |
|
ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr); |
|
|
|
if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || |
|
GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { |
|
priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL); |
|
if (priv->hist_data) |
|
mwifiex_hist_data_reset(priv); |
|
} |
|
} |
|
|
|
/* |
|
* This function check if command is pending. |
|
*/ |
|
int is_command_pending(struct mwifiex_adapter *adapter) |
|
{ |
|
int is_cmd_pend_q_empty; |
|
|
|
spin_lock_bh(&adapter->cmd_pending_q_lock); |
|
is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); |
|
spin_unlock_bh(&adapter->cmd_pending_q_lock); |
|
|
|
return !is_cmd_pend_q_empty; |
|
} |
|
|
|
/* |
|
* This is the RX work queue function. |
|
* |
|
* It handles the RX operations. |
|
*/ |
|
static void mwifiex_rx_work_queue(struct work_struct *work) |
|
{ |
|
struct mwifiex_adapter *adapter = |
|
container_of(work, struct mwifiex_adapter, rx_work); |
|
|
|
if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags)) |
|
return; |
|
mwifiex_process_rx(adapter); |
|
} |
|
|
|
/* |
|
* This is the main work queue function. |
|
* |
|
* It handles the main process, which in turn handles the complete |
|
* driver operations. |
|
*/ |
|
static void mwifiex_main_work_queue(struct work_struct *work) |
|
{ |
|
struct mwifiex_adapter *adapter = |
|
container_of(work, struct mwifiex_adapter, main_work); |
|
|
|
if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags)) |
|
return; |
|
mwifiex_main_process(adapter); |
|
} |
|
|
|
/* Common teardown code used for both device removal and reset */ |
|
static void mwifiex_uninit_sw(struct mwifiex_adapter *adapter) |
|
{ |
|
struct mwifiex_private *priv; |
|
int i; |
|
|
|
/* We can no longer handle interrupts once we start doing the teardown |
|
* below. |
|
*/ |
|
if (adapter->if_ops.disable_int) |
|
adapter->if_ops.disable_int(adapter); |
|
|
|
set_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags); |
|
mwifiex_terminate_workqueue(adapter); |
|
adapter->int_status = 0; |
|
|
|
/* Stop data */ |
|
for (i = 0; i < adapter->priv_num; i++) { |
|
priv = adapter->priv[i]; |
|
if (priv && priv->netdev) { |
|
mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
|
if (netif_carrier_ok(priv->netdev)) |
|
netif_carrier_off(priv->netdev); |
|
netif_device_detach(priv->netdev); |
|
} |
|
} |
|
|
|
mwifiex_dbg(adapter, CMD, "cmd: calling mwifiex_shutdown_drv...\n"); |
|
mwifiex_shutdown_drv(adapter); |
|
mwifiex_dbg(adapter, CMD, "cmd: mwifiex_shutdown_drv done\n"); |
|
|
|
if (atomic_read(&adapter->rx_pending) || |
|
atomic_read(&adapter->tx_pending) || |
|
atomic_read(&adapter->cmd_pending)) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"rx_pending=%d, tx_pending=%d,\t" |
|
"cmd_pending=%d\n", |
|
atomic_read(&adapter->rx_pending), |
|
atomic_read(&adapter->tx_pending), |
|
atomic_read(&adapter->cmd_pending)); |
|
} |
|
|
|
for (i = 0; i < adapter->priv_num; i++) { |
|
priv = adapter->priv[i]; |
|
if (!priv) |
|
continue; |
|
rtnl_lock(); |
|
if (priv->netdev && |
|
priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) { |
|
/* |
|
* Close the netdev now, because if we do it later, the |
|
* netdev notifiers will need to acquire the wiphy lock |
|
* again --> deadlock. |
|
*/ |
|
dev_close(priv->wdev.netdev); |
|
wiphy_lock(adapter->wiphy); |
|
mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev); |
|
wiphy_unlock(adapter->wiphy); |
|
} |
|
rtnl_unlock(); |
|
} |
|
|
|
wiphy_unregister(adapter->wiphy); |
|
wiphy_free(adapter->wiphy); |
|
adapter->wiphy = NULL; |
|
|
|
vfree(adapter->chan_stats); |
|
mwifiex_free_cmd_buffers(adapter); |
|
} |
|
|
|
/* |
|
* This function can be used for shutting down the adapter SW. |
|
*/ |
|
int mwifiex_shutdown_sw(struct mwifiex_adapter *adapter) |
|
{ |
|
struct mwifiex_private *priv; |
|
|
|
if (!adapter) |
|
return 0; |
|
|
|
wait_for_completion(adapter->fw_done); |
|
/* Caller should ensure we aren't suspending while this happens */ |
|
reinit_completion(adapter->fw_done); |
|
|
|
priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
|
mwifiex_deauthenticate(priv, NULL); |
|
|
|
mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN); |
|
|
|
mwifiex_uninit_sw(adapter); |
|
adapter->is_up = false; |
|
|
|
if (adapter->if_ops.down_dev) |
|
adapter->if_ops.down_dev(adapter); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_shutdown_sw); |
|
|
|
/* This function can be used for reinitting the adapter SW. Required |
|
* code is extracted from mwifiex_add_card() |
|
*/ |
|
int |
|
mwifiex_reinit_sw(struct mwifiex_adapter *adapter) |
|
{ |
|
int ret; |
|
|
|
mwifiex_init_lock_list(adapter); |
|
if (adapter->if_ops.up_dev) |
|
adapter->if_ops.up_dev(adapter); |
|
|
|
adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
|
clear_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags); |
|
init_waitqueue_head(&adapter->init_wait_q); |
|
clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); |
|
adapter->hs_activated = false; |
|
clear_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags); |
|
init_waitqueue_head(&adapter->hs_activate_wait_q); |
|
init_waitqueue_head(&adapter->cmd_wait_q.wait); |
|
adapter->cmd_wait_q.status = 0; |
|
adapter->scan_wait_q_woken = false; |
|
|
|
if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) |
|
adapter->rx_work_enabled = true; |
|
|
|
adapter->workqueue = |
|
alloc_workqueue("MWIFIEX_WORK_QUEUE", |
|
WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); |
|
if (!adapter->workqueue) |
|
goto err_kmalloc; |
|
|
|
INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); |
|
|
|
if (adapter->rx_work_enabled) { |
|
adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", |
|
WQ_HIGHPRI | |
|
WQ_MEM_RECLAIM | |
|
WQ_UNBOUND, 1); |
|
if (!adapter->rx_workqueue) |
|
goto err_kmalloc; |
|
INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); |
|
} |
|
|
|
/* Register the device. Fill up the private data structure with |
|
* relevant information from the card. Some code extracted from |
|
* mwifiex_register_dev() |
|
*/ |
|
mwifiex_dbg(adapter, INFO, "%s, mwifiex_init_hw_fw()...\n", __func__); |
|
|
|
if (mwifiex_init_hw_fw(adapter, false)) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"%s: firmware init failed\n", __func__); |
|
goto err_init_fw; |
|
} |
|
|
|
/* _mwifiex_fw_dpc() does its own cleanup */ |
|
ret = _mwifiex_fw_dpc(adapter->firmware, adapter); |
|
if (ret) { |
|
pr_err("Failed to bring up adapter: %d\n", ret); |
|
return ret; |
|
} |
|
mwifiex_dbg(adapter, INFO, "%s, successful\n", __func__); |
|
|
|
return 0; |
|
|
|
err_init_fw: |
|
mwifiex_dbg(adapter, ERROR, "info: %s: unregister device\n", __func__); |
|
if (adapter->if_ops.unregister_dev) |
|
adapter->if_ops.unregister_dev(adapter); |
|
|
|
err_kmalloc: |
|
set_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags); |
|
mwifiex_terminate_workqueue(adapter); |
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
|
mwifiex_dbg(adapter, ERROR, |
|
"info: %s: shutdown mwifiex\n", __func__); |
|
mwifiex_shutdown_drv(adapter); |
|
mwifiex_free_cmd_buffers(adapter); |
|
} |
|
|
|
complete_all(adapter->fw_done); |
|
mwifiex_dbg(adapter, INFO, "%s, error\n", __func__); |
|
|
|
return -1; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_reinit_sw); |
|
|
|
static irqreturn_t mwifiex_irq_wakeup_handler(int irq, void *priv) |
|
{ |
|
struct mwifiex_adapter *adapter = priv; |
|
|
|
dev_dbg(adapter->dev, "%s: wake by wifi", __func__); |
|
adapter->wake_by_wifi = true; |
|
disable_irq_nosync(irq); |
|
|
|
/* Notify PM core we are wakeup source */ |
|
pm_wakeup_event(adapter->dev, 0); |
|
pm_system_wakeup(); |
|
|
|
return IRQ_HANDLED; |
|
} |
|
|
|
static void mwifiex_probe_of(struct mwifiex_adapter *adapter) |
|
{ |
|
int ret; |
|
struct device *dev = adapter->dev; |
|
|
|
if (!dev->of_node) |
|
goto err_exit; |
|
|
|
adapter->dt_node = dev->of_node; |
|
adapter->irq_wakeup = irq_of_parse_and_map(adapter->dt_node, 0); |
|
if (!adapter->irq_wakeup) { |
|
dev_dbg(dev, "fail to parse irq_wakeup from device tree\n"); |
|
goto err_exit; |
|
} |
|
|
|
ret = devm_request_irq(dev, adapter->irq_wakeup, |
|
mwifiex_irq_wakeup_handler, IRQF_TRIGGER_LOW, |
|
"wifi_wake", adapter); |
|
if (ret) { |
|
dev_err(dev, "Failed to request irq_wakeup %d (%d)\n", |
|
adapter->irq_wakeup, ret); |
|
goto err_exit; |
|
} |
|
|
|
disable_irq(adapter->irq_wakeup); |
|
if (device_init_wakeup(dev, true)) { |
|
dev_err(dev, "fail to init wakeup for mwifiex\n"); |
|
goto err_exit; |
|
} |
|
return; |
|
|
|
err_exit: |
|
adapter->irq_wakeup = -1; |
|
} |
|
|
|
/* |
|
* This function adds the card. |
|
* |
|
* This function follows the following major steps to set up the device - |
|
* - Initialize software. This includes probing the card, registering |
|
* the interface operations table, and allocating/initializing the |
|
* adapter structure |
|
* - Set up the netlink socket |
|
* - Create and start the main work queue |
|
* - Register the device |
|
* - Initialize firmware and hardware |
|
* - Add logical interfaces |
|
*/ |
|
int |
|
mwifiex_add_card(void *card, struct completion *fw_done, |
|
struct mwifiex_if_ops *if_ops, u8 iface_type, |
|
struct device *dev) |
|
{ |
|
struct mwifiex_adapter *adapter; |
|
|
|
if (mwifiex_register(card, dev, if_ops, (void **)&adapter)) { |
|
pr_err("%s: software init failed\n", __func__); |
|
goto err_init_sw; |
|
} |
|
|
|
mwifiex_probe_of(adapter); |
|
|
|
adapter->iface_type = iface_type; |
|
adapter->fw_done = fw_done; |
|
|
|
adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
|
clear_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags); |
|
init_waitqueue_head(&adapter->init_wait_q); |
|
clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); |
|
adapter->hs_activated = false; |
|
init_waitqueue_head(&adapter->hs_activate_wait_q); |
|
init_waitqueue_head(&adapter->cmd_wait_q.wait); |
|
adapter->cmd_wait_q.status = 0; |
|
adapter->scan_wait_q_woken = false; |
|
|
|
if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) |
|
adapter->rx_work_enabled = true; |
|
|
|
adapter->workqueue = |
|
alloc_workqueue("MWIFIEX_WORK_QUEUE", |
|
WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); |
|
if (!adapter->workqueue) |
|
goto err_kmalloc; |
|
|
|
INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); |
|
|
|
if (adapter->rx_work_enabled) { |
|
adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", |
|
WQ_HIGHPRI | |
|
WQ_MEM_RECLAIM | |
|
WQ_UNBOUND, 1); |
|
if (!adapter->rx_workqueue) |
|
goto err_kmalloc; |
|
|
|
INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); |
|
} |
|
|
|
/* Register the device. Fill up the private data structure with relevant |
|
information from the card. */ |
|
if (adapter->if_ops.register_dev(adapter)) { |
|
pr_err("%s: failed to register mwifiex device\n", __func__); |
|
goto err_registerdev; |
|
} |
|
|
|
if (mwifiex_init_hw_fw(adapter, true)) { |
|
pr_err("%s: firmware init failed\n", __func__); |
|
goto err_init_fw; |
|
} |
|
|
|
return 0; |
|
|
|
err_init_fw: |
|
pr_debug("info: %s: unregister device\n", __func__); |
|
if (adapter->if_ops.unregister_dev) |
|
adapter->if_ops.unregister_dev(adapter); |
|
err_registerdev: |
|
set_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags); |
|
mwifiex_terminate_workqueue(adapter); |
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
|
pr_debug("info: %s: shutdown mwifiex\n", __func__); |
|
mwifiex_shutdown_drv(adapter); |
|
mwifiex_free_cmd_buffers(adapter); |
|
} |
|
err_kmalloc: |
|
if (adapter->irq_wakeup >= 0) |
|
device_init_wakeup(adapter->dev, false); |
|
mwifiex_free_adapter(adapter); |
|
|
|
err_init_sw: |
|
|
|
return -1; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_add_card); |
|
|
|
/* |
|
* This function removes the card. |
|
* |
|
* This function follows the following major steps to remove the device - |
|
* - Stop data traffic |
|
* - Shutdown firmware |
|
* - Remove the logical interfaces |
|
* - Terminate the work queue |
|
* - Unregister the device |
|
* - Free the adapter structure |
|
*/ |
|
int mwifiex_remove_card(struct mwifiex_adapter *adapter) |
|
{ |
|
if (!adapter) |
|
return 0; |
|
|
|
if (adapter->is_up) |
|
mwifiex_uninit_sw(adapter); |
|
|
|
if (adapter->irq_wakeup >= 0) |
|
device_init_wakeup(adapter->dev, false); |
|
|
|
/* Unregister device */ |
|
mwifiex_dbg(adapter, INFO, |
|
"info: unregister device\n"); |
|
if (adapter->if_ops.unregister_dev) |
|
adapter->if_ops.unregister_dev(adapter); |
|
/* Free adapter structure */ |
|
mwifiex_dbg(adapter, INFO, |
|
"info: free adapter\n"); |
|
mwifiex_free_adapter(adapter); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL_GPL(mwifiex_remove_card); |
|
|
|
void _mwifiex_dbg(const struct mwifiex_adapter *adapter, int mask, |
|
const char *fmt, ...) |
|
{ |
|
struct va_format vaf; |
|
va_list args; |
|
|
|
if (!(adapter->debug_mask & mask)) |
|
return; |
|
|
|
va_start(args, fmt); |
|
|
|
vaf.fmt = fmt; |
|
vaf.va = &args; |
|
|
|
if (adapter->dev) |
|
dev_info(adapter->dev, "%pV", &vaf); |
|
else |
|
pr_info("%pV", &vaf); |
|
|
|
va_end(args); |
|
} |
|
EXPORT_SYMBOL_GPL(_mwifiex_dbg); |
|
|
|
/* |
|
* This function initializes the module. |
|
* |
|
* The debug FS is also initialized if configured. |
|
*/ |
|
static int |
|
mwifiex_init_module(void) |
|
{ |
|
#ifdef CONFIG_DEBUG_FS |
|
mwifiex_debugfs_init(); |
|
#endif |
|
return 0; |
|
} |
|
|
|
/* |
|
* This function cleans up the module. |
|
* |
|
* The debug FS is removed if available. |
|
*/ |
|
static void |
|
mwifiex_cleanup_module(void) |
|
{ |
|
#ifdef CONFIG_DEBUG_FS |
|
mwifiex_debugfs_remove(); |
|
#endif |
|
} |
|
|
|
module_init(mwifiex_init_module); |
|
module_exit(mwifiex_cleanup_module); |
|
|
|
MODULE_AUTHOR("Marvell International Ltd."); |
|
MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); |
|
MODULE_VERSION(VERSION); |
|
MODULE_LICENSE("GPL v2");
|
|
|