Commit | Line | Data |
---|---|---|
5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: major functions | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
5e6e3a92 BZ |
5 | * |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "main.h" | |
21 | #include "wmm.h" | |
22 | #include "cfg80211.h" | |
23 | #include "11n.h" | |
24 | ||
25 | #define VERSION "1.0" | |
cf5383b0 | 26 | #define MFG_FIRMWARE "mwifiex_mfg.bin" |
5e6e3a92 | 27 | |
c687a007 ZL |
28 | static unsigned int debug_mask = MWIFIEX_DEFAULT_DEBUG_MASK; |
29 | module_param(debug_mask, uint, 0); | |
30 | MODULE_PARM_DESC(debug_mask, "bitmap for debug flags"); | |
31 | ||
5e6e3a92 | 32 | const char driver_version[] = "mwifiex " VERSION " (%s) "; |
388ec385 AK |
33 | static char *cal_data_cfg; |
34 | module_param(cal_data_cfg, charp, 0); | |
5e6e3a92 | 35 | |
0013c7ce AP |
36 | static unsigned short driver_mode; |
37 | module_param(driver_mode, ushort, 0); | |
38 | MODULE_PARM_DESC(driver_mode, | |
39 | "station=0x1(default), ap-sta=0x3, station-p2p=0x5, ap-sta-p2p=0x7"); | |
40 | ||
cf5383b0 XH |
41 | bool mfg_mode; |
42 | module_param(mfg_mode, bool, 0); | |
43 | MODULE_PARM_DESC(mfg_mode, "manufacturing mode enable:1, disable:0"); | |
44 | ||
5e6e3a92 BZ |
45 | /* |
46 | * This function registers the device and performs all the necessary | |
47 | * initializations. | |
48 | * | |
49 | * The following initialization operations are performed - | |
50 | * - Allocate adapter structure | |
51 | * - Save interface specific operations table in adapter | |
52 | * - Call interface specific initialization routine | |
53 | * - Allocate private structures | |
54 | * - Set default adapter structure parameters | |
55 | * - Initialize locks | |
56 | * | |
57 | * In case of any errors during inittialization, this function also ensures | |
58 | * proper cleanup before exiting. | |
59 | */ | |
60 | static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, | |
287546df | 61 | void **padapter) |
5e6e3a92 | 62 | { |
2be7859f AK |
63 | struct mwifiex_adapter *adapter; |
64 | int i; | |
5e6e3a92 BZ |
65 | |
66 | adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); | |
5e6e3a92 | 67 | if (!adapter) |
b53575ec | 68 | return -ENOMEM; |
5e6e3a92 | 69 | |
287546df | 70 | *padapter = adapter; |
5e6e3a92 BZ |
71 | adapter->card = card; |
72 | ||
73 | /* Save interface specific operations in adapter */ | |
74 | memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); | |
c687a007 | 75 | adapter->debug_mask = debug_mask; |
5e6e3a92 BZ |
76 | |
77 | /* card specific initialization has been deferred until now .. */ | |
4daffe35 AK |
78 | if (adapter->if_ops.init_if) |
79 | if (adapter->if_ops.init_if(adapter)) | |
80 | goto error; | |
5e6e3a92 BZ |
81 | |
82 | adapter->priv_num = 0; | |
5e6e3a92 | 83 | |
64b05e2f AP |
84 | for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
85 | /* Allocate memory for private structure */ | |
86 | adapter->priv[i] = | |
87 | kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); | |
88 | if (!adapter->priv[i]) | |
89 | goto error; | |
93a1df48 | 90 | |
64b05e2f | 91 | adapter->priv[i]->adapter = adapter; |
64b05e2f AP |
92 | adapter->priv_num++; |
93 | } | |
44b815c6 | 94 | mwifiex_init_lock_list(adapter); |
5e6e3a92 | 95 | |
c6c33e77 JL |
96 | setup_timer(&adapter->cmd_timer, mwifiex_cmd_timeout_func, |
97 | (unsigned long)adapter); | |
5e6e3a92 | 98 | |
5e6e3a92 BZ |
99 | return 0; |
100 | ||
101 | error: | |
acebe8c1 ZL |
102 | mwifiex_dbg(adapter, ERROR, |
103 | "info: leave mwifiex_register with error\n"); | |
5e6e3a92 | 104 | |
93a1df48 | 105 | for (i = 0; i < adapter->priv_num; i++) |
5e6e3a92 | 106 | kfree(adapter->priv[i]); |
93a1df48 | 107 | |
5e6e3a92 BZ |
108 | kfree(adapter); |
109 | ||
110 | return -1; | |
111 | } | |
112 | ||
113 | /* | |
114 | * This function unregisters the device and performs all the necessary | |
115 | * cleanups. | |
116 | * | |
117 | * The following cleanup operations are performed - | |
118 | * - Free the timers | |
119 | * - Free beacon buffers | |
120 | * - Free private structures | |
121 | * - Free adapter structure | |
122 | */ | |
123 | static int mwifiex_unregister(struct mwifiex_adapter *adapter) | |
124 | { | |
270e58e8 | 125 | s32 i; |
5e6e3a92 | 126 | |
4cfda67d AK |
127 | if (adapter->if_ops.cleanup_if) |
128 | adapter->if_ops.cleanup_if(adapter); | |
129 | ||
629873f2 | 130 | del_timer_sync(&adapter->cmd_timer); |
5e6e3a92 BZ |
131 | |
132 | /* Free private structures */ | |
133 | for (i = 0; i < adapter->priv_num; i++) { | |
134 | if (adapter->priv[i]) { | |
135 | mwifiex_free_curr_bcn(adapter->priv[i]); | |
136 | kfree(adapter->priv[i]); | |
137 | } | |
138 | } | |
139 | ||
7d7f07d8 | 140 | if (adapter->nd_info) { |
141 | for (i = 0 ; i < adapter->nd_info->n_matches ; i++) | |
142 | kfree(adapter->nd_info->matches[i]); | |
143 | kfree(adapter->nd_info); | |
144 | adapter->nd_info = NULL; | |
145 | } | |
146 | ||
72539799 AK |
147 | kfree(adapter->regd); |
148 | ||
bf354433 | 149 | vfree(adapter->chan_stats); |
5e6e3a92 BZ |
150 | kfree(adapter); |
151 | return 0; | |
152 | } | |
153 | ||
b2713f67 SL |
154 | void mwifiex_queue_main_work(struct mwifiex_adapter *adapter) |
155 | { | |
156 | unsigned long flags; | |
157 | ||
158 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
159 | if (adapter->mwifiex_processing) { | |
160 | adapter->more_task_flag = true; | |
161 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
162 | } else { | |
163 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
164 | queue_work(adapter->workqueue, &adapter->main_work); | |
165 | } | |
166 | } | |
167 | EXPORT_SYMBOL_GPL(mwifiex_queue_main_work); | |
168 | ||
169 | static void mwifiex_queue_rx_work(struct mwifiex_adapter *adapter) | |
170 | { | |
171 | unsigned long flags; | |
172 | ||
173 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
174 | if (adapter->rx_processing) { | |
175 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
176 | } else { | |
177 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
178 | queue_work(adapter->rx_workqueue, &adapter->rx_work); | |
179 | } | |
180 | } | |
181 | ||
6e251174 AP |
182 | static int mwifiex_process_rx(struct mwifiex_adapter *adapter) |
183 | { | |
184 | unsigned long flags; | |
185 | struct sk_buff *skb; | |
92263a84 | 186 | struct mwifiex_rxinfo *rx_info; |
6e251174 AP |
187 | |
188 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
189 | if (adapter->rx_processing || adapter->rx_locked) { | |
190 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
191 | goto exit_rx_proc; | |
192 | } else { | |
193 | adapter->rx_processing = true; | |
194 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
195 | } | |
196 | ||
197 | /* Check for Rx data */ | |
198 | while ((skb = skb_dequeue(&adapter->rx_data_q))) { | |
199 | atomic_dec(&adapter->rx_pending); | |
381e9fff AK |
200 | if ((adapter->delay_main_work || |
201 | adapter->iface_type == MWIFIEX_USB) && | |
b43a0d9d | 202 | (atomic_read(&adapter->rx_pending) < LOW_RX_PENDING)) { |
cf6a64fd AK |
203 | if (adapter->if_ops.submit_rem_rx_urbs) |
204 | adapter->if_ops.submit_rem_rx_urbs(adapter); | |
6e251174 | 205 | adapter->delay_main_work = false; |
b2713f67 | 206 | mwifiex_queue_main_work(adapter); |
6e251174 | 207 | } |
92263a84 ZL |
208 | rx_info = MWIFIEX_SKB_RXCB(skb); |
209 | if (rx_info->buf_type == MWIFIEX_TYPE_AGGR_DATA) { | |
210 | if (adapter->if_ops.deaggr_pkt) | |
211 | adapter->if_ops.deaggr_pkt(adapter, skb); | |
212 | dev_kfree_skb_any(skb); | |
213 | } else { | |
214 | mwifiex_handle_rx_packet(adapter, skb); | |
6e251174 | 215 | } |
6e251174 AP |
216 | } |
217 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
218 | adapter->rx_processing = false; | |
219 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
220 | ||
6e251174 AP |
221 | exit_rx_proc: |
222 | return 0; | |
223 | } | |
224 | ||
5e6e3a92 BZ |
225 | /* |
226 | * The main process. | |
227 | * | |
228 | * This function is the main procedure of the driver and handles various driver | |
229 | * operations. It runs in a loop and provides the core functionalities. | |
230 | * | |
231 | * The main responsibilities of this function are - | |
232 | * - Ensure concurrency control | |
233 | * - Handle pending interrupts and call interrupt handlers | |
234 | * - Wake up the card if required | |
235 | * - Handle command responses and call response handlers | |
236 | * - Handle events and call event handlers | |
237 | * - Execute pending commands | |
238 | * - Transmit pending data packets | |
239 | */ | |
240 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
241 | { | |
242 | int ret = 0; | |
243 | unsigned long flags; | |
244 | ||
245 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
246 | ||
247 | /* Check if already processing */ | |
a9adbcb3 | 248 | if (adapter->mwifiex_processing || adapter->main_locked) { |
04c7b363 | 249 | adapter->more_task_flag = true; |
5e6e3a92 BZ |
250 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
251 | goto exit_main_proc; | |
252 | } else { | |
253 | adapter->mwifiex_processing = true; | |
91457eaa | 254 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
5e6e3a92 BZ |
255 | } |
256 | process_start: | |
257 | do { | |
258 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || | |
259 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
260 | break; | |
261 | ||
381e9fff AK |
262 | /* For non-USB interfaces, If we process interrupts first, it |
263 | * would increase RX pending even further. Avoid this by | |
264 | * checking if rx_pending has crossed high threshold and | |
265 | * schedule rx work queue and then process interrupts. | |
266 | * For USB interface, there are no interrupts. We already have | |
267 | * HIGH_RX_PENDING check in usb.c | |
6e251174 | 268 | */ |
381e9fff AK |
269 | if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING && |
270 | adapter->iface_type != MWIFIEX_USB) { | |
6e251174 | 271 | adapter->delay_main_work = true; |
b2713f67 | 272 | mwifiex_queue_rx_work(adapter); |
6e251174 AP |
273 | break; |
274 | } | |
275 | ||
5e6e3a92 BZ |
276 | /* Handle pending interrupt if any */ |
277 | if (adapter->int_status) { | |
278 | if (adapter->hs_activated) | |
279 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
280 | if (adapter->if_ops.process_int_status) |
281 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
282 | } |
283 | ||
6e251174 | 284 | if (adapter->rx_work_enabled && adapter->data_received) |
b2713f67 | 285 | mwifiex_queue_rx_work(adapter); |
6e251174 | 286 | |
5e6e3a92 BZ |
287 | /* Need to wake up the card ? */ |
288 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
289 | (adapter->pm_wakeup_card_req && | |
290 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc | 291 | (is_command_pending(adapter) || |
e35000ea | 292 | !skb_queue_empty(&adapter->tx_data_q) || |
a1777327 | 293 | !mwifiex_bypass_txlist_empty(adapter) || |
f57c1edc | 294 | !mwifiex_wmm_lists_empty(adapter))) { |
5e6e3a92 | 295 | adapter->pm_wakeup_fw_try = true; |
4636187d | 296 | mod_timer(&adapter->wakeup_timer, jiffies + (HZ*3)); |
5e6e3a92 BZ |
297 | adapter->if_ops.wakeup(adapter); |
298 | continue; | |
299 | } | |
4daffe35 | 300 | |
5e6e3a92 | 301 | if (IS_CARD_RX_RCVD(adapter)) { |
6e251174 | 302 | adapter->data_received = false; |
5e6e3a92 | 303 | adapter->pm_wakeup_fw_try = false; |
6e9344fd | 304 | del_timer(&adapter->wakeup_timer); |
5e6e3a92 BZ |
305 | if (adapter->ps_state == PS_STATE_SLEEP) |
306 | adapter->ps_state = PS_STATE_AWAKE; | |
307 | } else { | |
308 | /* We have tried to wakeup the card already */ | |
309 | if (adapter->pm_wakeup_fw_try) | |
310 | break; | |
7e4e5d2c | 311 | if (adapter->ps_state != PS_STATE_AWAKE) |
5e6e3a92 | 312 | break; |
7e4e5d2c ZL |
313 | if (adapter->tx_lock_flag) { |
314 | if (adapter->iface_type == MWIFIEX_USB) { | |
315 | if (!adapter->usb_mc_setup) | |
316 | break; | |
317 | } else | |
318 | break; | |
319 | } | |
5e6e3a92 | 320 | |
5ec39efa | 321 | if ((!adapter->scan_chan_gap_enabled && |
5ec39efa | 322 | adapter->scan_processing) || adapter->data_sent || |
ba101ad5 XH |
323 | mwifiex_is_tdls_chan_switching |
324 | (mwifiex_get_priv(adapter, | |
325 | MWIFIEX_BSS_ROLE_STA)) || | |
e35000ea | 326 | (mwifiex_wmm_lists_empty(adapter) && |
a1777327 | 327 | mwifiex_bypass_txlist_empty(adapter) && |
e35000ea | 328 | skb_queue_empty(&adapter->tx_data_q))) { |
f57c1edc | 329 | if (adapter->cmd_sent || adapter->curr_cmd || |
ba101ad5 XH |
330 | !mwifiex_is_send_cmd_allowed |
331 | (mwifiex_get_priv(adapter, | |
332 | MWIFIEX_BSS_ROLE_STA)) || | |
f57c1edc | 333 | (!is_command_pending(adapter))) |
5e6e3a92 BZ |
334 | break; |
335 | } | |
336 | } | |
337 | ||
20474129 AK |
338 | /* Check for event */ |
339 | if (adapter->event_received) { | |
340 | adapter->event_received = false; | |
341 | mwifiex_process_event(adapter); | |
342 | } | |
343 | ||
5e6e3a92 BZ |
344 | /* Check for Cmd Resp */ |
345 | if (adapter->cmd_resp_received) { | |
346 | adapter->cmd_resp_received = false; | |
347 | mwifiex_process_cmdresp(adapter); | |
348 | ||
349 | /* call mwifiex back when init_fw is done */ | |
350 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
351 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
352 | mwifiex_init_fw_complete(adapter); | |
353 | } | |
354 | } | |
355 | ||
5e6e3a92 BZ |
356 | /* Check if we need to confirm Sleep Request |
357 | received previously */ | |
358 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
359 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
360 | mwifiex_check_ps_cond(adapter); | |
361 | } | |
362 | ||
363 | /* * The ps_state may have been changed during processing of | |
364 | * Sleep Request event. | |
365 | */ | |
f57c1edc YAP |
366 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
367 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
7e4e5d2c | 368 | (adapter->ps_state == PS_STATE_SLEEP_CFM)) { |
5e6e3a92 | 369 | continue; |
04c7b363 | 370 | } |
5e6e3a92 | 371 | |
7e4e5d2c ZL |
372 | if (adapter->tx_lock_flag) { |
373 | if (adapter->iface_type == MWIFIEX_USB) { | |
374 | if (!adapter->usb_mc_setup) | |
375 | continue; | |
376 | } else | |
377 | continue; | |
378 | } | |
379 | ||
ba101ad5 XH |
380 | if (!adapter->cmd_sent && !adapter->curr_cmd && |
381 | mwifiex_is_send_cmd_allowed | |
382 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) { | |
5e6e3a92 BZ |
383 | if (mwifiex_exec_next_cmd(adapter) == -1) { |
384 | ret = -1; | |
385 | break; | |
386 | } | |
387 | } | |
388 | ||
7e4e5d2c ZL |
389 | /** If USB Multi channel setup ongoing, |
390 | * wait for ready to tx data. | |
391 | */ | |
392 | if (adapter->iface_type == MWIFIEX_USB && | |
393 | adapter->usb_mc_setup) | |
394 | continue; | |
395 | ||
e35000ea ZL |
396 | if ((adapter->scan_chan_gap_enabled || |
397 | !adapter->scan_processing) && | |
398 | !adapter->data_sent && | |
399 | !skb_queue_empty(&adapter->tx_data_q)) { | |
400 | mwifiex_process_tx_queue(adapter); | |
401 | if (adapter->hs_activated) { | |
402 | adapter->is_hs_configured = false; | |
403 | mwifiex_hs_activated_event | |
404 | (mwifiex_get_priv | |
405 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
406 | false); | |
407 | } | |
408 | } | |
409 | ||
a1777327 AP |
410 | if ((adapter->scan_chan_gap_enabled || |
411 | !adapter->scan_processing) && | |
412 | !adapter->data_sent && | |
413 | !mwifiex_bypass_txlist_empty(adapter) && | |
414 | !mwifiex_is_tdls_chan_switching | |
415 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) { | |
416 | mwifiex_process_bypass_tx(adapter); | |
417 | if (adapter->hs_activated) { | |
418 | adapter->is_hs_configured = false; | |
419 | mwifiex_hs_activated_event | |
420 | (mwifiex_get_priv | |
421 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
422 | false); | |
423 | } | |
424 | } | |
425 | ||
5ec39efa | 426 | if ((adapter->scan_chan_gap_enabled || |
d8d91253 | 427 | !adapter->scan_processing) && |
ba101ad5 XH |
428 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter) && |
429 | !mwifiex_is_tdls_chan_switching | |
430 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA))) { | |
5e6e3a92 BZ |
431 | mwifiex_wmm_process_tx(adapter); |
432 | if (adapter->hs_activated) { | |
433 | adapter->is_hs_configured = false; | |
434 | mwifiex_hs_activated_event | |
435 | (mwifiex_get_priv | |
436 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
437 | false); | |
438 | } | |
439 | } | |
440 | ||
441 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc | 442 | !adapter->curr_cmd && !is_command_pending(adapter) && |
e35000ea | 443 | (mwifiex_wmm_lists_empty(adapter) && |
a1777327 | 444 | mwifiex_bypass_txlist_empty(adapter) && |
e35000ea | 445 | skb_queue_empty(&adapter->tx_data_q))) { |
5e6e3a92 BZ |
446 | if (!mwifiex_send_null_packet |
447 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
448 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
449 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
450 | adapter->delay_null_pkt = false; | |
451 | adapter->ps_state = PS_STATE_SLEEP; | |
452 | } | |
453 | break; | |
454 | } | |
455 | } while (true); | |
456 | ||
453b0c3f | 457 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
91457eaa CL |
458 | if (adapter->more_task_flag) { |
459 | adapter->more_task_flag = false; | |
460 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
5e6e3a92 | 461 | goto process_start; |
91457eaa | 462 | } |
5e6e3a92 BZ |
463 | adapter->mwifiex_processing = false; |
464 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
465 | ||
466 | exit_main_proc: | |
467 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
468 | mwifiex_shutdown_drv(adapter); | |
469 | return ret; | |
470 | } | |
601216e1 | 471 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 472 | |
5e6e3a92 BZ |
473 | /* |
474 | * This function frees the adapter structure. | |
475 | * | |
476 | * Additionally, this closes the netlink socket, frees the timers | |
477 | * and private structures. | |
478 | */ | |
479 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
480 | { | |
481 | if (!adapter) { | |
482 | pr_err("%s: adapter is NULL\n", __func__); | |
483 | return; | |
484 | } | |
485 | ||
486 | mwifiex_unregister(adapter); | |
487 | pr_debug("info: %s: free adapter\n", __func__); | |
488 | } | |
489 | ||
6b41f941 AK |
490 | /* |
491 | * This function cancels all works in the queue and destroys | |
492 | * the main workqueue. | |
493 | */ | |
494 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
495 | { | |
496 | flush_workqueue(adapter->workqueue); | |
497 | destroy_workqueue(adapter->workqueue); | |
498 | adapter->workqueue = NULL; | |
6e251174 AP |
499 | |
500 | if (adapter->rx_workqueue) { | |
501 | flush_workqueue(adapter->rx_workqueue); | |
502 | destroy_workqueue(adapter->rx_workqueue); | |
503 | adapter->rx_workqueue = NULL; | |
504 | } | |
6b41f941 AK |
505 | } |
506 | ||
5e6e3a92 | 507 | /* |
59a4cc25 | 508 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
509 | * |
510 | * The main initialization steps followed are - | |
511 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
512 | * - Issue the init commands to firmware |
513 | */ | |
59a4cc25 | 514 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 515 | { |
bec568ff | 516 | int ret; |
59a4cc25 AK |
517 | char fmt[64]; |
518 | struct mwifiex_private *priv; | |
519 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 520 | struct mwifiex_fw_image fw; |
c3afd99f AK |
521 | struct semaphore *sem = adapter->card_sem; |
522 | bool init_failed = false; | |
68b76e99 | 523 | struct wireless_dev *wdev; |
5e6e3a92 | 524 | |
59a4cc25 | 525 | if (!firmware) { |
acebe8c1 ZL |
526 | mwifiex_dbg(adapter, ERROR, |
527 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 528 | goto err_dnld_fw; |
5e6e3a92 | 529 | } |
59a4cc25 AK |
530 | |
531 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
532 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
533 | fw.fw_buf = (u8 *) adapter->firmware->data; |
534 | fw.fw_len = adapter->firmware->size; | |
535 | ||
65c71efe | 536 | if (adapter->if_ops.dnld_fw) { |
4daffe35 | 537 | ret = adapter->if_ops.dnld_fw(adapter, &fw); |
65c71efe | 538 | } else { |
4daffe35 | 539 | ret = mwifiex_dnld_fw(adapter, &fw); |
65c71efe WNH |
540 | } |
541 | ||
5e6e3a92 | 542 | if (ret == -1) |
6b41f941 | 543 | goto err_dnld_fw; |
5e6e3a92 | 544 | |
acebe8c1 | 545 | mwifiex_dbg(adapter, MSG, "WLAN FW is active\n"); |
5e6e3a92 | 546 | |
388ec385 AK |
547 | if (cal_data_cfg) { |
548 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
549 | adapter->dev)) < 0) | |
acebe8c1 ZL |
550 | mwifiex_dbg(adapter, ERROR, |
551 | "Cal data request_firmware() failed\n"); | |
388ec385 AK |
552 | } |
553 | ||
232fde06 | 554 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
555 | if (adapter->if_ops.enable_int) { |
556 | if (adapter->if_ops.enable_int(adapter)) | |
557 | goto err_dnld_fw; | |
558 | } | |
232fde06 | 559 | |
5e6e3a92 BZ |
560 | adapter->init_wait_q_woken = false; |
561 | ret = mwifiex_init_fw(adapter); | |
562 | if (ret == -1) { | |
6b41f941 | 563 | goto err_init_fw; |
5e6e3a92 BZ |
564 | } else if (!ret) { |
565 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
566 | goto done; | |
567 | } | |
568 | /* Wait for mwifiex_init to complete */ | |
cf5383b0 XH |
569 | if (!adapter->mfg_mode) { |
570 | wait_event_interruptible(adapter->init_wait_q, | |
571 | adapter->init_wait_q_woken); | |
572 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) | |
573 | goto err_init_fw; | |
574 | } | |
59a4cc25 | 575 | |
d6bffe8b AP |
576 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
577 | if (mwifiex_register_cfg80211(adapter)) { | |
acebe8c1 ZL |
578 | mwifiex_dbg(adapter, ERROR, |
579 | "cannot register with cfg80211\n"); | |
d1af2943 | 580 | goto err_init_fw; |
59a4cc25 AK |
581 | } |
582 | ||
bf354433 | 583 | if (mwifiex_init_channel_scan_gap(adapter)) { |
acebe8c1 ZL |
584 | mwifiex_dbg(adapter, ERROR, |
585 | "could not init channel stats table\n"); | |
bf354433 AP |
586 | goto err_init_fw; |
587 | } | |
588 | ||
0013c7ce AP |
589 | if (driver_mode) { |
590 | driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK; | |
591 | driver_mode |= MWIFIEX_DRIVER_MODE_STA; | |
592 | } | |
593 | ||
59a4cc25 AK |
594 | rtnl_lock(); |
595 | /* Create station interface by default */ | |
6bab2e19 | 596 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", NET_NAME_ENUM, |
68b76e99 AK |
597 | NL80211_IFTYPE_STATION, NULL, NULL); |
598 | if (IS_ERR(wdev)) { | |
acebe8c1 ZL |
599 | mwifiex_dbg(adapter, ERROR, |
600 | "cannot create default STA interface\n"); | |
bec568ff | 601 | rtnl_unlock(); |
59a4cc25 | 602 | goto err_add_intf; |
5e6e3a92 | 603 | } |
0013c7ce AP |
604 | |
605 | if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) { | |
6bab2e19 | 606 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d", NET_NAME_ENUM, |
0013c7ce AP |
607 | NL80211_IFTYPE_AP, NULL, NULL); |
608 | if (IS_ERR(wdev)) { | |
acebe8c1 ZL |
609 | mwifiex_dbg(adapter, ERROR, |
610 | "cannot create AP interface\n"); | |
0013c7ce AP |
611 | rtnl_unlock(); |
612 | goto err_add_intf; | |
613 | } | |
614 | } | |
615 | ||
616 | if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) { | |
6bab2e19 | 617 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d", NET_NAME_ENUM, |
0013c7ce AP |
618 | NL80211_IFTYPE_P2P_CLIENT, NULL, |
619 | NULL); | |
620 | if (IS_ERR(wdev)) { | |
acebe8c1 ZL |
621 | mwifiex_dbg(adapter, ERROR, |
622 | "cannot create p2p client interface\n"); | |
0013c7ce AP |
623 | rtnl_unlock(); |
624 | goto err_add_intf; | |
625 | } | |
626 | } | |
59a4cc25 AK |
627 | rtnl_unlock(); |
628 | ||
629 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
acebe8c1 | 630 | mwifiex_dbg(adapter, MSG, "driver_version = %s\n", fmt); |
59a4cc25 | 631 | goto done; |
5e6e3a92 | 632 | |
59a4cc25 | 633 | err_add_intf: |
6b41f941 AK |
634 | wiphy_unregister(adapter->wiphy); |
635 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 636 | err_init_fw: |
232fde06 DD |
637 | if (adapter->if_ops.disable_int) |
638 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 639 | err_dnld_fw: |
acebe8c1 ZL |
640 | mwifiex_dbg(adapter, ERROR, |
641 | "info: %s: unregister device\n", __func__); | |
6b41f941 AK |
642 | if (adapter->if_ops.unregister_dev) |
643 | adapter->if_ops.unregister_dev(adapter); | |
644 | ||
7197325b | 645 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
6b41f941 AK |
646 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
647 | adapter->init_wait_q_woken = false; | |
648 | ||
649 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
650 | wait_event_interruptible(adapter->init_wait_q, | |
651 | adapter->init_wait_q_woken); | |
652 | } | |
653 | adapter->surprise_removed = true; | |
654 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 655 | init_failed = true; |
5e6e3a92 | 656 | done: |
388ec385 AK |
657 | if (adapter->cal_data) { |
658 | release_firmware(adapter->cal_data); | |
659 | adapter->cal_data = NULL; | |
660 | } | |
c3afd99f AK |
661 | if (adapter->firmware) { |
662 | release_firmware(adapter->firmware); | |
663 | adapter->firmware = NULL; | |
664 | } | |
c3afd99f AK |
665 | if (init_failed) |
666 | mwifiex_free_adapter(adapter); | |
667 | up(sem); | |
59a4cc25 AK |
668 | return; |
669 | } | |
670 | ||
671 | /* | |
672 | * This function initializes the hardware and gets firmware. | |
673 | */ | |
674 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
675 | { | |
676 | int ret; | |
677 | ||
cf5383b0 XH |
678 | /* Override default firmware with manufacturing one if |
679 | * manufacturing mode is enabled | |
680 | */ | |
681 | if (mfg_mode) { | |
682 | if (strlcpy(adapter->fw_name, MFG_FIRMWARE, | |
683 | sizeof(adapter->fw_name)) >= | |
684 | sizeof(adapter->fw_name)) { | |
685 | pr_err("%s: fw_name too long!\n", __func__); | |
686 | return -1; | |
687 | } | |
688 | } | |
59a4cc25 AK |
689 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
690 | adapter->dev, GFP_KERNEL, adapter, | |
691 | mwifiex_fw_dpc); | |
692 | if (ret < 0) | |
acebe8c1 ZL |
693 | mwifiex_dbg(adapter, ERROR, |
694 | "request_firmware_nowait error %d\n", ret); | |
5e6e3a92 BZ |
695 | return ret; |
696 | } | |
697 | ||
5e6e3a92 BZ |
698 | /* |
699 | * CFG802.11 network device handler for open. | |
700 | * | |
701 | * Starts the data queue. | |
702 | */ | |
703 | static int | |
704 | mwifiex_open(struct net_device *dev) | |
705 | { | |
ea2325b8 JB |
706 | netif_carrier_off(dev); |
707 | ||
5e6e3a92 BZ |
708 | return 0; |
709 | } | |
710 | ||
711 | /* | |
712 | * CFG802.11 network device handler for close. | |
713 | */ | |
714 | static int | |
715 | mwifiex_close(struct net_device *dev) | |
716 | { | |
f162cac8 AK |
717 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
718 | ||
719 | if (priv->scan_request) { | |
1d76250b AS |
720 | struct cfg80211_scan_info info = { |
721 | .aborted = true, | |
722 | }; | |
723 | ||
acebe8c1 ZL |
724 | mwifiex_dbg(priv->adapter, INFO, |
725 | "aborting scan on ndo_stop\n"); | |
1d76250b | 726 | cfg80211_scan_done(priv->scan_request, &info); |
f162cac8 | 727 | priv->scan_request = NULL; |
75ab753d | 728 | priv->scan_aborting = true; |
f162cac8 AK |
729 | } |
730 | ||
eaf46b5f XH |
731 | if (priv->sched_scanning) { |
732 | mwifiex_dbg(priv->adapter, INFO, | |
733 | "aborting bgscan on ndo_stop\n"); | |
734 | mwifiex_stop_bg_scan(priv); | |
735 | cfg80211_sched_scan_stopped(priv->wdev.wiphy); | |
736 | } | |
737 | ||
5e6e3a92 BZ |
738 | return 0; |
739 | } | |
740 | ||
a1777327 AP |
741 | static bool |
742 | mwifiex_bypass_tx_queue(struct mwifiex_private *priv, | |
743 | struct sk_buff *skb) | |
744 | { | |
745 | struct ethhdr *eth_hdr = (struct ethhdr *)skb->data; | |
746 | ||
747 | if (ntohs(eth_hdr->h_proto) == ETH_P_PAE || | |
748 | mwifiex_is_skb_mgmt_frame(skb) || | |
749 | (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA && | |
750 | ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && | |
751 | (ntohs(eth_hdr->h_proto) == ETH_P_TDLS))) { | |
752 | mwifiex_dbg(priv->adapter, DATA, | |
753 | "bypass txqueue; eth type %#x, mgmt %d\n", | |
754 | ntohs(eth_hdr->h_proto), | |
755 | mwifiex_is_skb_mgmt_frame(skb)); | |
756 | return true; | |
757 | } | |
758 | ||
759 | return false; | |
760 | } | |
e39faa73 SP |
761 | /* |
762 | * Add buffer into wmm tx queue and queue work to transmit it. | |
763 | */ | |
764 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
765 | { | |
47411a06 AP |
766 | struct netdev_queue *txq; |
767 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
768 | ||
769 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
770 | txq = netdev_get_tx_queue(priv->netdev, index); | |
771 | if (!netif_tx_queue_stopped(txq)) { | |
772 | netif_tx_stop_queue(txq); | |
acebe8c1 ZL |
773 | mwifiex_dbg(priv->adapter, DATA, |
774 | "stop queue: %d\n", index); | |
47411a06 AP |
775 | } |
776 | } | |
777 | ||
a1777327 AP |
778 | if (mwifiex_bypass_tx_queue(priv, skb)) { |
779 | atomic_inc(&priv->adapter->tx_pending); | |
780 | atomic_inc(&priv->adapter->bypass_tx_pending); | |
781 | mwifiex_wmm_add_buf_bypass_txqueue(priv, skb); | |
782 | } else { | |
783 | atomic_inc(&priv->adapter->tx_pending); | |
784 | mwifiex_wmm_add_buf_txqueue(priv, skb); | |
785 | } | |
e39faa73 | 786 | |
b2713f67 | 787 | mwifiex_queue_main_work(priv->adapter); |
e39faa73 SP |
788 | |
789 | return 0; | |
790 | } | |
791 | ||
18ca4382 | 792 | struct sk_buff * |
808bbebc | 793 | mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv, |
18ca4382 | 794 | struct sk_buff *skb, u8 flag, u64 *cookie) |
808bbebc AK |
795 | { |
796 | struct sk_buff *orig_skb = skb; | |
797 | struct mwifiex_txinfo *tx_info, *orig_tx_info; | |
798 | ||
799 | skb = skb_clone(skb, GFP_ATOMIC); | |
800 | if (skb) { | |
801 | unsigned long flags; | |
802 | int id; | |
803 | ||
804 | spin_lock_irqsave(&priv->ack_status_lock, flags); | |
805 | id = idr_alloc(&priv->ack_status_frames, orig_skb, | |
ee548d4b | 806 | 1, 0x10, GFP_ATOMIC); |
808bbebc AK |
807 | spin_unlock_irqrestore(&priv->ack_status_lock, flags); |
808 | ||
809 | if (id >= 0) { | |
810 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
811 | tx_info->ack_frame_id = id; | |
812 | tx_info->flags |= flag; | |
813 | orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb); | |
814 | orig_tx_info->ack_frame_id = id; | |
815 | orig_tx_info->flags |= flag; | |
18ca4382 AK |
816 | |
817 | if (flag == MWIFIEX_BUF_FLAG_ACTION_TX_STATUS && cookie) | |
818 | orig_tx_info->cookie = *cookie; | |
819 | ||
808bbebc AK |
820 | } else if (skb_shared(skb)) { |
821 | kfree_skb(orig_skb); | |
822 | } else { | |
823 | kfree_skb(skb); | |
824 | skb = orig_skb; | |
825 | } | |
826 | } else { | |
827 | /* couldn't clone -- lose tx status ... */ | |
828 | skb = orig_skb; | |
829 | } | |
830 | ||
831 | return skb; | |
832 | } | |
833 | ||
5e6e3a92 BZ |
834 | /* |
835 | * CFG802.11 network device handler for data transmission. | |
836 | */ | |
837 | static int | |
838 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
839 | { | |
840 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 841 | struct sk_buff *new_skb; |
5e6e3a92 | 842 | struct mwifiex_txinfo *tx_info; |
808bbebc | 843 | bool multicast; |
5e6e3a92 | 844 | |
acebe8c1 ZL |
845 | mwifiex_dbg(priv->adapter, DATA, |
846 | "data: %lu BSS(%d-%d): Data <= kernel\n", | |
847 | jiffies, priv->bss_type, priv->bss_num); | |
5e6e3a92 BZ |
848 | |
849 | if (priv->adapter->surprise_removed) { | |
b53575ec | 850 | kfree_skb(skb); |
5e6e3a92 BZ |
851 | priv->stats.tx_dropped++; |
852 | return 0; | |
853 | } | |
854 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
acebe8c1 ZL |
855 | mwifiex_dbg(priv->adapter, ERROR, |
856 | "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 857 | kfree_skb(skb); |
5e6e3a92 BZ |
858 | priv->stats.tx_dropped++; |
859 | return 0; | |
860 | } | |
861 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
acebe8c1 ZL |
862 | mwifiex_dbg(priv->adapter, DATA, |
863 | "data: Tx: insufficient skb headroom %d\n", | |
864 | skb_headroom(skb)); | |
5e6e3a92 BZ |
865 | /* Insufficient skb headroom - allocate a new skb */ |
866 | new_skb = | |
867 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
868 | if (unlikely(!new_skb)) { | |
acebe8c1 ZL |
869 | mwifiex_dbg(priv->adapter, ERROR, |
870 | "Tx: cannot alloca new_skb\n"); | |
b53575ec | 871 | kfree_skb(skb); |
5e6e3a92 BZ |
872 | priv->stats.tx_dropped++; |
873 | return 0; | |
874 | } | |
875 | kfree_skb(skb); | |
876 | skb = new_skb; | |
acebe8c1 ZL |
877 | mwifiex_dbg(priv->adapter, INFO, |
878 | "info: new skb headroomd %d\n", | |
879 | skb_headroom(skb)); | |
5e6e3a92 BZ |
880 | } |
881 | ||
882 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 883 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
884 | tx_info->bss_num = priv->bss_num; |
885 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 886 | tx_info->pkt_len = skb->len; |
47411a06 | 887 | |
808bbebc AK |
888 | multicast = is_multicast_ether_addr(skb->data); |
889 | ||
890 | if (unlikely(!multicast && skb->sk && | |
891 | skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS && | |
892 | priv->adapter->fw_api_ver == MWIFIEX_FW_V15)) | |
893 | skb = mwifiex_clone_skb_for_tx_status(priv, | |
894 | skb, | |
18ca4382 | 895 | MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS, NULL); |
808bbebc | 896 | |
47411a06 AP |
897 | /* Record the current time the packet was queued; used to |
898 | * determine the amount of time the packet was queued in | |
899 | * the driver before it was sent to the firmware. | |
900 | * The delay is then sent along with the packet to the | |
901 | * firmware for aggregate delay calculation for stats and | |
902 | * MSDU lifetime expiry. | |
903 | */ | |
c64800e7 | 904 | __net_timestamp(skb); |
5e6e3a92 | 905 | |
9927baa3 AP |
906 | if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && |
907 | priv->bss_type == MWIFIEX_BSS_TYPE_STA && | |
908 | !ether_addr_equal_unaligned(priv->cfg_bssid, skb->data)) { | |
909 | if (priv->adapter->auto_tdls && priv->check_tdls_tx) | |
910 | mwifiex_tdls_check_tx(priv, skb); | |
911 | } | |
912 | ||
e39faa73 | 913 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
914 | |
915 | return 0; | |
916 | } | |
917 | ||
918 | /* | |
919 | * CFG802.11 network device handler for setting MAC address. | |
920 | */ | |
921 | static int | |
922 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
923 | { | |
924 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 925 | struct sockaddr *hw_addr = addr; |
270e58e8 | 926 | int ret; |
5e6e3a92 BZ |
927 | |
928 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
929 | ||
600f5d90 | 930 | /* Send request to firmware */ |
fa0ecbb9 BZ |
931 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
932 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
933 | |
934 | if (!ret) | |
935 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
936 | else | |
acebe8c1 ZL |
937 | mwifiex_dbg(priv->adapter, ERROR, |
938 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 939 | |
5e6e3a92 BZ |
940 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
941 | ||
600f5d90 | 942 | return ret; |
5e6e3a92 BZ |
943 | } |
944 | ||
945 | /* | |
946 | * CFG802.11 network device handler for setting multicast list. | |
947 | */ | |
948 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
949 | { | |
950 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
951 | struct mwifiex_multicast_list mcast_list; |
952 | ||
953 | if (dev->flags & IFF_PROMISC) { | |
954 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
955 | } else if (dev->flags & IFF_ALLMULTI || | |
956 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
957 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
958 | } else { | |
959 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
960 | mcast_list.num_multicast_addr = |
961 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
962 | } |
963 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
964 | } |
965 | ||
966 | /* | |
967 | * CFG802.11 network device handler for transmission timeout. | |
968 | */ | |
969 | static void | |
970 | mwifiex_tx_timeout(struct net_device *dev) | |
971 | { | |
972 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
973 | ||
5e6e3a92 | 974 | priv->num_tx_timeout++; |
8908c7d5 | 975 | priv->tx_timeout_cnt++; |
acebe8c1 ZL |
976 | mwifiex_dbg(priv->adapter, ERROR, |
977 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
978 | jiffies, priv->tx_timeout_cnt, priv->bss_type, | |
979 | priv->bss_num); | |
8908c7d5 AN |
980 | mwifiex_set_trans_start(dev); |
981 | ||
982 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
983 | priv->adapter->if_ops.card_reset) { | |
acebe8c1 ZL |
984 | mwifiex_dbg(priv->adapter, ERROR, |
985 | "tx_timeout_cnt exceeds threshold.\t" | |
986 | "Triggering card reset!\n"); | |
8908c7d5 AN |
987 | priv->adapter->if_ops.card_reset(priv->adapter); |
988 | } | |
5e6e3a92 BZ |
989 | } |
990 | ||
7e4e5d2c ZL |
991 | void mwifiex_multi_chan_resync(struct mwifiex_adapter *adapter) |
992 | { | |
993 | struct usb_card_rec *card = adapter->card; | |
994 | struct mwifiex_private *priv; | |
995 | u16 tx_buf_size; | |
996 | int i, ret; | |
997 | ||
998 | card->mc_resync_flag = true; | |
999 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { | |
1000 | if (atomic_read(&card->port[i].tx_data_urb_pending)) { | |
1001 | mwifiex_dbg(adapter, WARN, "pending data urb in sys\n"); | |
1002 | return; | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | card->mc_resync_flag = false; | |
1007 | tx_buf_size = 0xffff; | |
1008 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | |
1009 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_RECONFIGURE_TX_BUFF, | |
1010 | HostCmd_ACT_GEN_SET, 0, &tx_buf_size, false); | |
1011 | if (ret) | |
1012 | mwifiex_dbg(adapter, ERROR, | |
1013 | "send reconfig tx buf size cmd err\n"); | |
1014 | } | |
1015 | EXPORT_SYMBOL_GPL(mwifiex_multi_chan_resync); | |
1016 | ||
fc697159 | 1017 | void mwifiex_drv_info_dump(struct mwifiex_adapter *adapter) |
11cd07a9 XH |
1018 | { |
1019 | void *p; | |
1020 | char drv_version[64]; | |
1021 | struct usb_card_rec *cardp; | |
1022 | struct sdio_mmc_card *sdio_card; | |
1023 | struct mwifiex_private *priv; | |
1024 | int i, idx; | |
1025 | struct netdev_queue *txq; | |
1026 | struct mwifiex_debug_info *debug_info; | |
1027 | ||
1028 | if (adapter->drv_info_dump) { | |
1029 | vfree(adapter->drv_info_dump); | |
0769b277 | 1030 | adapter->drv_info_dump = NULL; |
11cd07a9 XH |
1031 | adapter->drv_info_size = 0; |
1032 | } | |
1033 | ||
9cc0dbf0 | 1034 | mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump start===\n"); |
11cd07a9 XH |
1035 | |
1036 | adapter->drv_info_dump = vzalloc(MWIFIEX_DRV_INFO_SIZE_MAX); | |
1037 | ||
1038 | if (!adapter->drv_info_dump) | |
1039 | return; | |
1040 | ||
1041 | p = (char *)(adapter->drv_info_dump); | |
1042 | p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); | |
1043 | ||
1044 | mwifiex_drv_get_driver_version(adapter, drv_version, | |
1045 | sizeof(drv_version) - 1); | |
1046 | p += sprintf(p, "driver_version = %s\n", drv_version); | |
1047 | ||
1048 | if (adapter->iface_type == MWIFIEX_USB) { | |
1049 | cardp = (struct usb_card_rec *)adapter->card; | |
1050 | p += sprintf(p, "tx_cmd_urb_pending = %d\n", | |
1051 | atomic_read(&cardp->tx_cmd_urb_pending)); | |
308fe29e ZL |
1052 | p += sprintf(p, "tx_data_urb_pending_port_0 = %d\n", |
1053 | atomic_read(&cardp->port[0].tx_data_urb_pending)); | |
1054 | p += sprintf(p, "tx_data_urb_pending_port_1 = %d\n", | |
1055 | atomic_read(&cardp->port[1].tx_data_urb_pending)); | |
11cd07a9 XH |
1056 | p += sprintf(p, "rx_cmd_urb_pending = %d\n", |
1057 | atomic_read(&cardp->rx_cmd_urb_pending)); | |
1058 | p += sprintf(p, "rx_data_urb_pending = %d\n", | |
1059 | atomic_read(&cardp->rx_data_urb_pending)); | |
1060 | } | |
1061 | ||
1062 | p += sprintf(p, "tx_pending = %d\n", | |
1063 | atomic_read(&adapter->tx_pending)); | |
1064 | p += sprintf(p, "rx_pending = %d\n", | |
1065 | atomic_read(&adapter->rx_pending)); | |
1066 | ||
1067 | if (adapter->iface_type == MWIFIEX_SDIO) { | |
1068 | sdio_card = (struct sdio_mmc_card *)adapter->card; | |
1069 | p += sprintf(p, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n", | |
1070 | sdio_card->mp_rd_bitmap, sdio_card->curr_rd_port); | |
1071 | p += sprintf(p, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n", | |
1072 | sdio_card->mp_wr_bitmap, sdio_card->curr_wr_port); | |
1073 | } | |
1074 | ||
1075 | for (i = 0; i < adapter->priv_num; i++) { | |
1076 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
1077 | continue; | |
1078 | priv = adapter->priv[i]; | |
1079 | p += sprintf(p, "\n[interface : \"%s\"]\n", | |
1080 | priv->netdev->name); | |
1081 | p += sprintf(p, "wmm_tx_pending[0] = %d\n", | |
1082 | atomic_read(&priv->wmm_tx_pending[0])); | |
1083 | p += sprintf(p, "wmm_tx_pending[1] = %d\n", | |
1084 | atomic_read(&priv->wmm_tx_pending[1])); | |
1085 | p += sprintf(p, "wmm_tx_pending[2] = %d\n", | |
1086 | atomic_read(&priv->wmm_tx_pending[2])); | |
1087 | p += sprintf(p, "wmm_tx_pending[3] = %d\n", | |
1088 | atomic_read(&priv->wmm_tx_pending[3])); | |
1089 | p += sprintf(p, "media_state=\"%s\"\n", !priv->media_connected ? | |
1090 | "Disconnected" : "Connected"); | |
1091 | p += sprintf(p, "carrier %s\n", (netif_carrier_ok(priv->netdev) | |
1092 | ? "on" : "off")); | |
1093 | for (idx = 0; idx < priv->netdev->num_tx_queues; idx++) { | |
1094 | txq = netdev_get_tx_queue(priv->netdev, idx); | |
1095 | p += sprintf(p, "tx queue %d:%s ", idx, | |
1096 | netif_tx_queue_stopped(txq) ? | |
1097 | "stopped" : "started"); | |
1098 | } | |
1099 | p += sprintf(p, "\n%s: num_tx_timeout = %d\n", | |
1100 | priv->netdev->name, priv->num_tx_timeout); | |
1101 | } | |
1102 | ||
4646968b XH |
1103 | if (adapter->iface_type == MWIFIEX_SDIO || |
1104 | adapter->iface_type == MWIFIEX_PCIE) { | |
1105 | p += sprintf(p, "\n=== %s register dump===\n", | |
1106 | adapter->iface_type == MWIFIEX_SDIO ? | |
1107 | "SDIO" : "PCIE"); | |
809c6ea8 XH |
1108 | if (adapter->if_ops.reg_dump) |
1109 | p += adapter->if_ops.reg_dump(adapter, p); | |
1110 | } | |
9cc0dbf0 | 1111 | p += sprintf(p, "\n=== more debug information\n"); |
11cd07a9 XH |
1112 | debug_info = kzalloc(sizeof(*debug_info), GFP_KERNEL); |
1113 | if (debug_info) { | |
1114 | for (i = 0; i < adapter->priv_num; i++) { | |
1115 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
1116 | continue; | |
1117 | priv = adapter->priv[i]; | |
1118 | mwifiex_get_debug_info(priv, debug_info); | |
1119 | p += mwifiex_debug_info_to_buffer(priv, p, debug_info); | |
1120 | break; | |
1121 | } | |
1122 | kfree(debug_info); | |
1123 | } | |
1124 | ||
1125 | adapter->drv_info_size = p - adapter->drv_info_dump; | |
9cc0dbf0 | 1126 | mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump end===\n"); |
11cd07a9 | 1127 | } |
fc697159 | 1128 | EXPORT_SYMBOL_GPL(mwifiex_drv_info_dump); |
11cd07a9 | 1129 | |
57670ee8 AK |
1130 | void mwifiex_upload_device_dump(struct mwifiex_adapter *adapter) |
1131 | { | |
1132 | u8 idx, *dump_data, *fw_dump_ptr; | |
1133 | u32 dump_len; | |
1134 | ||
1135 | dump_len = (strlen("========Start dump driverinfo========\n") + | |
1136 | adapter->drv_info_size + | |
1137 | strlen("\n========End dump========\n")); | |
1138 | ||
1139 | for (idx = 0; idx < adapter->num_mem_types; idx++) { | |
1140 | struct memory_type_mapping *entry = | |
1141 | &adapter->mem_type_mapping_tbl[idx]; | |
1142 | ||
1143 | if (entry->mem_ptr) { | |
1144 | dump_len += (strlen("========Start dump ") + | |
1145 | strlen(entry->mem_name) + | |
1146 | strlen("========\n") + | |
1147 | (entry->mem_size + 1) + | |
1148 | strlen("\n========End dump========\n")); | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | dump_data = vzalloc(dump_len + 1); | |
1153 | if (!dump_data) | |
1154 | goto done; | |
1155 | ||
1156 | fw_dump_ptr = dump_data; | |
1157 | ||
1158 | /* Dump all the memory data into single file, a userspace script will | |
1159 | * be used to split all the memory data to multiple files | |
1160 | */ | |
1161 | mwifiex_dbg(adapter, MSG, | |
1162 | "== mwifiex dump information to /sys/class/devcoredump start"); | |
1163 | ||
1164 | strcpy(fw_dump_ptr, "========Start dump driverinfo========\n"); | |
1165 | fw_dump_ptr += strlen("========Start dump driverinfo========\n"); | |
1166 | memcpy(fw_dump_ptr, adapter->drv_info_dump, adapter->drv_info_size); | |
1167 | fw_dump_ptr += adapter->drv_info_size; | |
1168 | strcpy(fw_dump_ptr, "\n========End dump========\n"); | |
1169 | fw_dump_ptr += strlen("\n========End dump========\n"); | |
1170 | ||
1171 | for (idx = 0; idx < adapter->num_mem_types; idx++) { | |
1172 | struct memory_type_mapping *entry = | |
1173 | &adapter->mem_type_mapping_tbl[idx]; | |
1174 | ||
1175 | if (entry->mem_ptr) { | |
1176 | strcpy(fw_dump_ptr, "========Start dump "); | |
1177 | fw_dump_ptr += strlen("========Start dump "); | |
1178 | ||
1179 | strcpy(fw_dump_ptr, entry->mem_name); | |
1180 | fw_dump_ptr += strlen(entry->mem_name); | |
1181 | ||
1182 | strcpy(fw_dump_ptr, "========\n"); | |
1183 | fw_dump_ptr += strlen("========\n"); | |
1184 | ||
1185 | memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size); | |
1186 | fw_dump_ptr += entry->mem_size; | |
1187 | ||
1188 | strcpy(fw_dump_ptr, "\n========End dump========\n"); | |
1189 | fw_dump_ptr += strlen("\n========End dump========\n"); | |
1190 | } | |
1191 | } | |
1192 | ||
1193 | /* device dump data will be free in device coredump release function | |
1194 | * after 5 min | |
1195 | */ | |
1196 | dev_coredumpv(adapter->dev, dump_data, dump_len, GFP_KERNEL); | |
1197 | mwifiex_dbg(adapter, MSG, | |
1198 | "== mwifiex dump information to /sys/class/devcoredump end"); | |
1199 | ||
1200 | done: | |
1201 | for (idx = 0; idx < adapter->num_mem_types; idx++) { | |
1202 | struct memory_type_mapping *entry = | |
1203 | &adapter->mem_type_mapping_tbl[idx]; | |
1204 | ||
1205 | if (entry->mem_ptr) { | |
1206 | vfree(entry->mem_ptr); | |
1207 | entry->mem_ptr = NULL; | |
1208 | } | |
1209 | entry->mem_size = 0; | |
1210 | } | |
1211 | ||
1212 | if (adapter->drv_info_dump) { | |
1213 | vfree(adapter->drv_info_dump); | |
1214 | adapter->drv_info_dump = NULL; | |
1215 | adapter->drv_info_size = 0; | |
1216 | } | |
1217 | } | |
1218 | EXPORT_SYMBOL_GPL(mwifiex_upload_device_dump); | |
1219 | ||
5e6e3a92 BZ |
1220 | /* |
1221 | * CFG802.11 network device handler for statistics retrieval. | |
1222 | */ | |
1223 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
1224 | { | |
1225 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
1226 | ||
1227 | return &priv->stats; | |
1228 | } | |
1229 | ||
47411a06 | 1230 | static u16 |
f663dd9a | 1231 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 1232 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 1233 | { |
fa9ffc74 | 1234 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
1235 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
1236 | } | |
1237 | ||
5e6e3a92 BZ |
1238 | /* Network device handlers */ |
1239 | static const struct net_device_ops mwifiex_netdev_ops = { | |
1240 | .ndo_open = mwifiex_open, | |
1241 | .ndo_stop = mwifiex_close, | |
1242 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
1243 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
fe24372d | 1244 | .ndo_validate_addr = eth_validate_addr, |
5e6e3a92 BZ |
1245 | .ndo_tx_timeout = mwifiex_tx_timeout, |
1246 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 1247 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 1248 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
1249 | }; |
1250 | ||
1251 | /* | |
1252 | * This function initializes the private structure parameters. | |
1253 | * | |
1254 | * The following wait queues are initialized - | |
1255 | * - IOCTL wait queue | |
1256 | * - Command wait queue | |
1257 | * - Statistics wait queue | |
1258 | * | |
1259 | * ...and the following default parameters are set - | |
1260 | * - Current key index : Set to 0 | |
1261 | * - Rate index : Set to auto | |
1262 | * - Media connected : Set to disconnected | |
1263 | * - Adhoc link sensed : Set to false | |
1264 | * - Nick name : Set to null | |
1265 | * - Number of Tx timeout : Set to 0 | |
1266 | * - Device address : Set to current address | |
cbf6e055 | 1267 | * - Rx histogram statistc : Set to 0 |
5e6e3a92 BZ |
1268 | * |
1269 | * In addition, the CFG80211 work queue is also created. | |
1270 | */ | |
93a1df48 | 1271 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
047eaaf6 | 1272 | struct net_device *dev) |
5e6e3a92 BZ |
1273 | { |
1274 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 1275 | dev->destructor = free_netdev; |
5e6e3a92 | 1276 | /* Initialize private structure */ |
5e6e3a92 BZ |
1277 | priv->current_key_index = 0; |
1278 | priv->media_connected = false; | |
ede98bfa AP |
1279 | memset(priv->mgmt_ie, 0, |
1280 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
1281 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
1282 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
1283 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
2ade5667 | 1284 | priv->gen_idx = MWIFIEX_AUTO_IDX_MASK; |
5e6e3a92 | 1285 | priv->num_tx_timeout = 0; |
8d05eb22 | 1286 | ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr); |
5e6e3a92 | 1287 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
cbf6e055 XH |
1288 | |
1289 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || | |
1290 | GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { | |
1291 | priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL); | |
1292 | if (priv->hist_data) | |
1293 | mwifiex_hist_data_reset(priv); | |
1294 | } | |
5e6e3a92 BZ |
1295 | } |
1296 | ||
5e6e3a92 BZ |
1297 | /* |
1298 | * This function check if command is pending. | |
1299 | */ | |
1300 | int is_command_pending(struct mwifiex_adapter *adapter) | |
1301 | { | |
1302 | unsigned long flags; | |
1303 | int is_cmd_pend_q_empty; | |
1304 | ||
1305 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
1306 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
1307 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
1308 | ||
1309 | return !is_cmd_pend_q_empty; | |
1310 | } | |
1311 | ||
6e251174 AP |
1312 | /* |
1313 | * This is the RX work queue function. | |
1314 | * | |
1315 | * It handles the RX operations. | |
1316 | */ | |
1317 | static void mwifiex_rx_work_queue(struct work_struct *work) | |
1318 | { | |
1319 | struct mwifiex_adapter *adapter = | |
1320 | container_of(work, struct mwifiex_adapter, rx_work); | |
1321 | ||
1322 | if (adapter->surprise_removed) | |
1323 | return; | |
1324 | mwifiex_process_rx(adapter); | |
1325 | } | |
1326 | ||
5e6e3a92 BZ |
1327 | /* |
1328 | * This is the main work queue function. | |
1329 | * | |
1330 | * It handles the main process, which in turn handles the complete | |
1331 | * driver operations. | |
1332 | */ | |
1333 | static void mwifiex_main_work_queue(struct work_struct *work) | |
1334 | { | |
1335 | struct mwifiex_adapter *adapter = | |
1336 | container_of(work, struct mwifiex_adapter, main_work); | |
1337 | ||
1338 | if (adapter->surprise_removed) | |
1339 | return; | |
1340 | mwifiex_main_process(adapter); | |
1341 | } | |
1342 | ||
5e6e3a92 BZ |
1343 | /* |
1344 | * This function adds the card. | |
1345 | * | |
1346 | * This function follows the following major steps to set up the device - | |
1347 | * - Initialize software. This includes probing the card, registering | |
1348 | * the interface operations table, and allocating/initializing the | |
1349 | * adapter structure | |
1350 | * - Set up the netlink socket | |
1351 | * - Create and start the main work queue | |
1352 | * - Register the device | |
1353 | * - Initialize firmware and hardware | |
1354 | * - Add logical interfaces | |
1355 | */ | |
1356 | int | |
1357 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 1358 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 1359 | { |
2be7859f | 1360 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
1361 | |
1362 | if (down_interruptible(sem)) | |
1363 | goto exit_sem_err; | |
1364 | ||
93a1df48 | 1365 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
1366 | pr_err("%s: software init failed\n", __func__); |
1367 | goto err_init_sw; | |
1368 | } | |
1369 | ||
d930faee | 1370 | adapter->iface_type = iface_type; |
6b41f941 | 1371 | adapter->card_sem = sem; |
d930faee | 1372 | |
5e6e3a92 | 1373 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
1374 | adapter->surprise_removed = false; |
1375 | init_waitqueue_head(&adapter->init_wait_q); | |
1376 | adapter->is_suspended = false; | |
1377 | adapter->hs_activated = false; | |
1378 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 1379 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 1380 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 1381 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 1382 | |
ec4a16b4 | 1383 | if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) { |
6e251174 AP |
1384 | adapter->rx_work_enabled = true; |
1385 | pr_notice("rx work enabled, cpus %d\n", num_possible_cpus()); | |
1386 | } | |
1387 | ||
448a71cc AK |
1388 | adapter->workqueue = |
1389 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
1390 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
1391 | if (!adapter->workqueue) |
1392 | goto err_kmalloc; | |
1393 | ||
1394 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
6e251174 AP |
1395 | |
1396 | if (adapter->rx_work_enabled) { | |
1397 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
1398 | WQ_HIGHPRI | | |
1399 | WQ_MEM_RECLAIM | | |
1400 | WQ_UNBOUND, 1); | |
1401 | if (!adapter->rx_workqueue) | |
1402 | goto err_kmalloc; | |
1403 | ||
1404 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
1405 | } | |
1406 | ||
5e6e3a92 | 1407 | /* Register the device. Fill up the private data structure with relevant |
232fde06 | 1408 | information from the card. */ |
5e6e3a92 BZ |
1409 | if (adapter->if_ops.register_dev(adapter)) { |
1410 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
1411 | goto err_registerdev; | |
1412 | } | |
1413 | ||
5e6e3a92 BZ |
1414 | if (mwifiex_init_hw_fw(adapter)) { |
1415 | pr_err("%s: firmware init failed\n", __func__); | |
1416 | goto err_init_fw; | |
1417 | } | |
2be7859f | 1418 | |
5e6e3a92 BZ |
1419 | return 0; |
1420 | ||
5e6e3a92 | 1421 | err_init_fw: |
5e6e3a92 | 1422 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
1423 | if (adapter->if_ops.unregister_dev) |
1424 | adapter->if_ops.unregister_dev(adapter); | |
7197325b | 1425 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
5e6e3a92 BZ |
1426 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
1427 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
1428 | |
1429 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1430 | wait_event_interruptible(adapter->init_wait_q, |
1431 | adapter->init_wait_q_woken); | |
1432 | } | |
6b41f941 AK |
1433 | err_registerdev: |
1434 | adapter->surprise_removed = true; | |
1435 | mwifiex_terminate_workqueue(adapter); | |
1436 | err_kmalloc: | |
5e6e3a92 BZ |
1437 | mwifiex_free_adapter(adapter); |
1438 | ||
1439 | err_init_sw: | |
1440 | up(sem); | |
1441 | ||
1442 | exit_sem_err: | |
1443 | return -1; | |
1444 | } | |
1445 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
1446 | ||
1447 | /* | |
1448 | * This function removes the card. | |
1449 | * | |
1450 | * This function follows the following major steps to remove the device - | |
1451 | * - Stop data traffic | |
1452 | * - Shutdown firmware | |
1453 | * - Remove the logical interfaces | |
1454 | * - Terminate the work queue | |
1455 | * - Unregister the device | |
1456 | * - Free the adapter structure | |
1457 | */ | |
1458 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
1459 | { | |
1460 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
1461 | int i; |
1462 | ||
c3ec0ff6 | 1463 | if (down_trylock(sem)) |
5e6e3a92 BZ |
1464 | goto exit_sem_err; |
1465 | ||
1466 | if (!adapter) | |
1467 | goto exit_remove; | |
1468 | ||
232fde06 DD |
1469 | /* We can no longer handle interrupts once we start doing the teardown |
1470 | * below. */ | |
1471 | if (adapter->if_ops.disable_int) | |
1472 | adapter->if_ops.disable_int(adapter); | |
1473 | ||
5e6e3a92 BZ |
1474 | adapter->surprise_removed = true; |
1475 | ||
9d2e85e0 MY |
1476 | mwifiex_terminate_workqueue(adapter); |
1477 | ||
5e6e3a92 BZ |
1478 | /* Stop data */ |
1479 | for (i = 0; i < adapter->priv_num; i++) { | |
1480 | priv = adapter->priv[i]; | |
93a1df48 | 1481 | if (priv && priv->netdev) { |
47411a06 | 1482 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
1483 | if (netif_carrier_ok(priv->netdev)) |
1484 | netif_carrier_off(priv->netdev); | |
1485 | } | |
1486 | } | |
1487 | ||
acebe8c1 ZL |
1488 | mwifiex_dbg(adapter, CMD, |
1489 | "cmd: calling mwifiex_shutdown_drv...\n"); | |
5e6e3a92 | 1490 | adapter->init_wait_q_woken = false; |
636c4598 YAP |
1491 | |
1492 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1493 | wait_event_interruptible(adapter->init_wait_q, |
1494 | adapter->init_wait_q_woken); | |
acebe8c1 ZL |
1495 | mwifiex_dbg(adapter, CMD, |
1496 | "cmd: mwifiex_shutdown_drv done\n"); | |
5e6e3a92 BZ |
1497 | if (atomic_read(&adapter->rx_pending) || |
1498 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 1499 | atomic_read(&adapter->cmd_pending)) { |
acebe8c1 ZL |
1500 | mwifiex_dbg(adapter, ERROR, |
1501 | "rx_pending=%d, tx_pending=%d,\t" | |
1502 | "cmd_pending=%d\n", | |
1503 | atomic_read(&adapter->rx_pending), | |
1504 | atomic_read(&adapter->tx_pending), | |
1505 | atomic_read(&adapter->cmd_pending)); | |
5e6e3a92 BZ |
1506 | } |
1507 | ||
93a1df48 YAP |
1508 | for (i = 0; i < adapter->priv_num; i++) { |
1509 | priv = adapter->priv[i]; | |
1510 | ||
1511 | if (!priv) | |
1512 | continue; | |
1513 | ||
1514 | rtnl_lock(); | |
4facc34a AP |
1515 | if (priv->netdev && |
1516 | priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) | |
1517 | mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev); | |
93a1df48 YAP |
1518 | rtnl_unlock(); |
1519 | } | |
1520 | ||
c2868ade AK |
1521 | wiphy_unregister(adapter->wiphy); |
1522 | wiphy_free(adapter->wiphy); | |
64b05e2f | 1523 | |
5e6e3a92 | 1524 | /* Unregister device */ |
acebe8c1 ZL |
1525 | mwifiex_dbg(adapter, INFO, |
1526 | "info: unregister device\n"); | |
4daffe35 AK |
1527 | if (adapter->if_ops.unregister_dev) |
1528 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 | 1529 | /* Free adapter structure */ |
acebe8c1 ZL |
1530 | mwifiex_dbg(adapter, INFO, |
1531 | "info: free adapter\n"); | |
5e6e3a92 BZ |
1532 | mwifiex_free_adapter(adapter); |
1533 | ||
1534 | exit_remove: | |
1535 | up(sem); | |
1536 | exit_sem_err: | |
1537 | return 0; | |
1538 | } | |
1539 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1540 | ||
36925e52 JP |
1541 | void _mwifiex_dbg(const struct mwifiex_adapter *adapter, int mask, |
1542 | const char *fmt, ...) | |
1543 | { | |
1544 | struct va_format vaf; | |
1545 | va_list args; | |
1546 | ||
1547 | if (!adapter->dev || !(adapter->debug_mask & mask)) | |
1548 | return; | |
1549 | ||
1550 | va_start(args, fmt); | |
1551 | ||
1552 | vaf.fmt = fmt; | |
1553 | vaf.va = &args; | |
1554 | ||
1555 | dev_info(adapter->dev, "%pV", &vaf); | |
1556 | ||
1557 | va_end(args); | |
1558 | } | |
1559 | EXPORT_SYMBOL_GPL(_mwifiex_dbg); | |
1560 | ||
5e6e3a92 BZ |
1561 | /* |
1562 | * This function initializes the module. | |
1563 | * | |
1564 | * The debug FS is also initialized if configured. | |
1565 | */ | |
1566 | static int | |
1567 | mwifiex_init_module(void) | |
1568 | { | |
1569 | #ifdef CONFIG_DEBUG_FS | |
1570 | mwifiex_debugfs_init(); | |
1571 | #endif | |
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | /* | |
1576 | * This function cleans up the module. | |
1577 | * | |
1578 | * The debug FS is removed if available. | |
1579 | */ | |
1580 | static void | |
1581 | mwifiex_cleanup_module(void) | |
1582 | { | |
1583 | #ifdef CONFIG_DEBUG_FS | |
1584 | mwifiex_debugfs_remove(); | |
1585 | #endif | |
1586 | } | |
1587 | ||
1588 | module_init(mwifiex_init_module); | |
1589 | module_exit(mwifiex_cleanup_module); | |
1590 | ||
1591 | MODULE_AUTHOR("Marvell International Ltd."); | |
1592 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1593 | MODULE_VERSION(VERSION); | |
1594 | MODULE_LICENSE("GPL v2"); |