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 | { | |
4c5dae59 AK |
496 | if (adapter->workqueue) { |
497 | flush_workqueue(adapter->workqueue); | |
498 | destroy_workqueue(adapter->workqueue); | |
499 | adapter->workqueue = NULL; | |
500 | } | |
6e251174 AP |
501 | |
502 | if (adapter->rx_workqueue) { | |
503 | flush_workqueue(adapter->rx_workqueue); | |
504 | destroy_workqueue(adapter->rx_workqueue); | |
505 | adapter->rx_workqueue = NULL; | |
506 | } | |
6b41f941 AK |
507 | } |
508 | ||
5e6e3a92 | 509 | /* |
59a4cc25 | 510 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
511 | * |
512 | * The main initialization steps followed are - | |
513 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
514 | * - Issue the init commands to firmware |
515 | */ | |
59a4cc25 | 516 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 517 | { |
bec568ff | 518 | int ret; |
59a4cc25 AK |
519 | char fmt[64]; |
520 | struct mwifiex_private *priv; | |
521 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 522 | struct mwifiex_fw_image fw; |
c3afd99f AK |
523 | struct semaphore *sem = adapter->card_sem; |
524 | bool init_failed = false; | |
68b76e99 | 525 | struct wireless_dev *wdev; |
5e6e3a92 | 526 | |
59a4cc25 | 527 | if (!firmware) { |
acebe8c1 ZL |
528 | mwifiex_dbg(adapter, ERROR, |
529 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 530 | goto err_dnld_fw; |
5e6e3a92 | 531 | } |
59a4cc25 AK |
532 | |
533 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
534 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
535 | fw.fw_buf = (u8 *) adapter->firmware->data; |
536 | fw.fw_len = adapter->firmware->size; | |
537 | ||
65c71efe | 538 | if (adapter->if_ops.dnld_fw) { |
4daffe35 | 539 | ret = adapter->if_ops.dnld_fw(adapter, &fw); |
65c71efe | 540 | } else { |
4daffe35 | 541 | ret = mwifiex_dnld_fw(adapter, &fw); |
65c71efe WNH |
542 | } |
543 | ||
5e6e3a92 | 544 | if (ret == -1) |
6b41f941 | 545 | goto err_dnld_fw; |
5e6e3a92 | 546 | |
acebe8c1 | 547 | mwifiex_dbg(adapter, MSG, "WLAN FW is active\n"); |
5e6e3a92 | 548 | |
388ec385 AK |
549 | if (cal_data_cfg) { |
550 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
551 | adapter->dev)) < 0) | |
acebe8c1 ZL |
552 | mwifiex_dbg(adapter, ERROR, |
553 | "Cal data request_firmware() failed\n"); | |
388ec385 AK |
554 | } |
555 | ||
232fde06 | 556 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
557 | if (adapter->if_ops.enable_int) { |
558 | if (adapter->if_ops.enable_int(adapter)) | |
559 | goto err_dnld_fw; | |
560 | } | |
232fde06 | 561 | |
5e6e3a92 BZ |
562 | adapter->init_wait_q_woken = false; |
563 | ret = mwifiex_init_fw(adapter); | |
564 | if (ret == -1) { | |
6b41f941 | 565 | goto err_init_fw; |
5e6e3a92 BZ |
566 | } else if (!ret) { |
567 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
568 | goto done; | |
569 | } | |
570 | /* Wait for mwifiex_init to complete */ | |
cf5383b0 XH |
571 | if (!adapter->mfg_mode) { |
572 | wait_event_interruptible(adapter->init_wait_q, | |
573 | adapter->init_wait_q_woken); | |
574 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) | |
575 | goto err_init_fw; | |
576 | } | |
59a4cc25 | 577 | |
d6bffe8b | 578 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
4c5dae59 AK |
579 | |
580 | if (!adapter->wiphy) { | |
581 | if (mwifiex_register_cfg80211(adapter)) { | |
582 | mwifiex_dbg(adapter, ERROR, | |
583 | "cannot register with cfg80211\n"); | |
584 | goto err_init_fw; | |
585 | } | |
59a4cc25 AK |
586 | } |
587 | ||
bf354433 | 588 | if (mwifiex_init_channel_scan_gap(adapter)) { |
acebe8c1 ZL |
589 | mwifiex_dbg(adapter, ERROR, |
590 | "could not init channel stats table\n"); | |
bf354433 AP |
591 | goto err_init_fw; |
592 | } | |
593 | ||
0013c7ce AP |
594 | if (driver_mode) { |
595 | driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK; | |
596 | driver_mode |= MWIFIEX_DRIVER_MODE_STA; | |
597 | } | |
598 | ||
59a4cc25 AK |
599 | rtnl_lock(); |
600 | /* Create station interface by default */ | |
6bab2e19 | 601 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", NET_NAME_ENUM, |
68b76e99 AK |
602 | NL80211_IFTYPE_STATION, NULL, NULL); |
603 | if (IS_ERR(wdev)) { | |
acebe8c1 ZL |
604 | mwifiex_dbg(adapter, ERROR, |
605 | "cannot create default STA interface\n"); | |
bec568ff | 606 | rtnl_unlock(); |
59a4cc25 | 607 | goto err_add_intf; |
5e6e3a92 | 608 | } |
0013c7ce AP |
609 | |
610 | if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) { | |
6bab2e19 | 611 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d", NET_NAME_ENUM, |
0013c7ce AP |
612 | NL80211_IFTYPE_AP, NULL, NULL); |
613 | if (IS_ERR(wdev)) { | |
acebe8c1 ZL |
614 | mwifiex_dbg(adapter, ERROR, |
615 | "cannot create AP interface\n"); | |
0013c7ce AP |
616 | rtnl_unlock(); |
617 | goto err_add_intf; | |
618 | } | |
619 | } | |
620 | ||
621 | if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) { | |
6bab2e19 | 622 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d", NET_NAME_ENUM, |
0013c7ce AP |
623 | NL80211_IFTYPE_P2P_CLIENT, NULL, |
624 | NULL); | |
625 | if (IS_ERR(wdev)) { | |
acebe8c1 ZL |
626 | mwifiex_dbg(adapter, ERROR, |
627 | "cannot create p2p client interface\n"); | |
0013c7ce AP |
628 | rtnl_unlock(); |
629 | goto err_add_intf; | |
630 | } | |
631 | } | |
59a4cc25 AK |
632 | rtnl_unlock(); |
633 | ||
634 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
acebe8c1 | 635 | mwifiex_dbg(adapter, MSG, "driver_version = %s\n", fmt); |
59a4cc25 | 636 | goto done; |
5e6e3a92 | 637 | |
59a4cc25 | 638 | err_add_intf: |
6b41f941 AK |
639 | wiphy_unregister(adapter->wiphy); |
640 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 641 | err_init_fw: |
232fde06 DD |
642 | if (adapter->if_ops.disable_int) |
643 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 644 | err_dnld_fw: |
acebe8c1 ZL |
645 | mwifiex_dbg(adapter, ERROR, |
646 | "info: %s: unregister device\n", __func__); | |
6b41f941 AK |
647 | if (adapter->if_ops.unregister_dev) |
648 | adapter->if_ops.unregister_dev(adapter); | |
649 | ||
7197325b | 650 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
6b41f941 AK |
651 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
652 | adapter->init_wait_q_woken = false; | |
653 | ||
654 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
655 | wait_event_interruptible(adapter->init_wait_q, | |
656 | adapter->init_wait_q_woken); | |
657 | } | |
658 | adapter->surprise_removed = true; | |
659 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 660 | init_failed = true; |
5e6e3a92 | 661 | done: |
388ec385 AK |
662 | if (adapter->cal_data) { |
663 | release_firmware(adapter->cal_data); | |
664 | adapter->cal_data = NULL; | |
665 | } | |
c3afd99f AK |
666 | if (adapter->firmware) { |
667 | release_firmware(adapter->firmware); | |
668 | adapter->firmware = NULL; | |
669 | } | |
c3afd99f AK |
670 | if (init_failed) |
671 | mwifiex_free_adapter(adapter); | |
672 | up(sem); | |
59a4cc25 AK |
673 | return; |
674 | } | |
675 | ||
676 | /* | |
677 | * This function initializes the hardware and gets firmware. | |
678 | */ | |
4c5dae59 AK |
679 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter, |
680 | bool req_fw_nowait) | |
59a4cc25 AK |
681 | { |
682 | int ret; | |
683 | ||
cf5383b0 XH |
684 | /* Override default firmware with manufacturing one if |
685 | * manufacturing mode is enabled | |
686 | */ | |
687 | if (mfg_mode) { | |
688 | if (strlcpy(adapter->fw_name, MFG_FIRMWARE, | |
689 | sizeof(adapter->fw_name)) >= | |
690 | sizeof(adapter->fw_name)) { | |
691 | pr_err("%s: fw_name too long!\n", __func__); | |
692 | return -1; | |
693 | } | |
694 | } | |
4c5dae59 AK |
695 | |
696 | if (req_fw_nowait) { | |
697 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, | |
698 | adapter->dev, GFP_KERNEL, adapter, | |
699 | mwifiex_fw_dpc); | |
700 | if (ret < 0) | |
701 | mwifiex_dbg(adapter, ERROR, | |
702 | "request_firmware_nowait error %d\n", ret); | |
703 | } else { | |
704 | ret = request_firmware(&adapter->firmware, | |
705 | adapter->fw_name, | |
706 | adapter->dev); | |
707 | if (ret < 0) | |
708 | mwifiex_dbg(adapter, ERROR, | |
709 | "request_firmware error %d\n", ret); | |
710 | else | |
711 | mwifiex_fw_dpc(adapter->firmware, (void *)adapter); | |
712 | } | |
713 | ||
5e6e3a92 BZ |
714 | return ret; |
715 | } | |
716 | ||
5e6e3a92 BZ |
717 | /* |
718 | * CFG802.11 network device handler for open. | |
719 | * | |
720 | * Starts the data queue. | |
721 | */ | |
722 | static int | |
723 | mwifiex_open(struct net_device *dev) | |
724 | { | |
ea2325b8 JB |
725 | netif_carrier_off(dev); |
726 | ||
5e6e3a92 BZ |
727 | return 0; |
728 | } | |
729 | ||
730 | /* | |
731 | * CFG802.11 network device handler for close. | |
732 | */ | |
733 | static int | |
734 | mwifiex_close(struct net_device *dev) | |
735 | { | |
f162cac8 AK |
736 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
737 | ||
738 | if (priv->scan_request) { | |
1d76250b AS |
739 | struct cfg80211_scan_info info = { |
740 | .aborted = true, | |
741 | }; | |
742 | ||
acebe8c1 ZL |
743 | mwifiex_dbg(priv->adapter, INFO, |
744 | "aborting scan on ndo_stop\n"); | |
1d76250b | 745 | cfg80211_scan_done(priv->scan_request, &info); |
f162cac8 | 746 | priv->scan_request = NULL; |
75ab753d | 747 | priv->scan_aborting = true; |
f162cac8 AK |
748 | } |
749 | ||
eaf46b5f XH |
750 | if (priv->sched_scanning) { |
751 | mwifiex_dbg(priv->adapter, INFO, | |
752 | "aborting bgscan on ndo_stop\n"); | |
753 | mwifiex_stop_bg_scan(priv); | |
754 | cfg80211_sched_scan_stopped(priv->wdev.wiphy); | |
755 | } | |
756 | ||
5e6e3a92 BZ |
757 | return 0; |
758 | } | |
759 | ||
a1777327 AP |
760 | static bool |
761 | mwifiex_bypass_tx_queue(struct mwifiex_private *priv, | |
762 | struct sk_buff *skb) | |
763 | { | |
764 | struct ethhdr *eth_hdr = (struct ethhdr *)skb->data; | |
765 | ||
766 | if (ntohs(eth_hdr->h_proto) == ETH_P_PAE || | |
767 | mwifiex_is_skb_mgmt_frame(skb) || | |
768 | (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA && | |
769 | ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && | |
770 | (ntohs(eth_hdr->h_proto) == ETH_P_TDLS))) { | |
771 | mwifiex_dbg(priv->adapter, DATA, | |
772 | "bypass txqueue; eth type %#x, mgmt %d\n", | |
773 | ntohs(eth_hdr->h_proto), | |
774 | mwifiex_is_skb_mgmt_frame(skb)); | |
775 | return true; | |
776 | } | |
777 | ||
778 | return false; | |
779 | } | |
e39faa73 SP |
780 | /* |
781 | * Add buffer into wmm tx queue and queue work to transmit it. | |
782 | */ | |
783 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
784 | { | |
47411a06 AP |
785 | struct netdev_queue *txq; |
786 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
787 | ||
788 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
789 | txq = netdev_get_tx_queue(priv->netdev, index); | |
790 | if (!netif_tx_queue_stopped(txq)) { | |
791 | netif_tx_stop_queue(txq); | |
acebe8c1 ZL |
792 | mwifiex_dbg(priv->adapter, DATA, |
793 | "stop queue: %d\n", index); | |
47411a06 AP |
794 | } |
795 | } | |
796 | ||
a1777327 AP |
797 | if (mwifiex_bypass_tx_queue(priv, skb)) { |
798 | atomic_inc(&priv->adapter->tx_pending); | |
799 | atomic_inc(&priv->adapter->bypass_tx_pending); | |
800 | mwifiex_wmm_add_buf_bypass_txqueue(priv, skb); | |
801 | } else { | |
802 | atomic_inc(&priv->adapter->tx_pending); | |
803 | mwifiex_wmm_add_buf_txqueue(priv, skb); | |
804 | } | |
e39faa73 | 805 | |
b2713f67 | 806 | mwifiex_queue_main_work(priv->adapter); |
e39faa73 SP |
807 | |
808 | return 0; | |
809 | } | |
810 | ||
18ca4382 | 811 | struct sk_buff * |
808bbebc | 812 | mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv, |
18ca4382 | 813 | struct sk_buff *skb, u8 flag, u64 *cookie) |
808bbebc AK |
814 | { |
815 | struct sk_buff *orig_skb = skb; | |
816 | struct mwifiex_txinfo *tx_info, *orig_tx_info; | |
817 | ||
818 | skb = skb_clone(skb, GFP_ATOMIC); | |
819 | if (skb) { | |
820 | unsigned long flags; | |
821 | int id; | |
822 | ||
823 | spin_lock_irqsave(&priv->ack_status_lock, flags); | |
824 | id = idr_alloc(&priv->ack_status_frames, orig_skb, | |
ee548d4b | 825 | 1, 0x10, GFP_ATOMIC); |
808bbebc AK |
826 | spin_unlock_irqrestore(&priv->ack_status_lock, flags); |
827 | ||
828 | if (id >= 0) { | |
829 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
830 | tx_info->ack_frame_id = id; | |
831 | tx_info->flags |= flag; | |
832 | orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb); | |
833 | orig_tx_info->ack_frame_id = id; | |
834 | orig_tx_info->flags |= flag; | |
18ca4382 AK |
835 | |
836 | if (flag == MWIFIEX_BUF_FLAG_ACTION_TX_STATUS && cookie) | |
837 | orig_tx_info->cookie = *cookie; | |
838 | ||
808bbebc AK |
839 | } else if (skb_shared(skb)) { |
840 | kfree_skb(orig_skb); | |
841 | } else { | |
842 | kfree_skb(skb); | |
843 | skb = orig_skb; | |
844 | } | |
845 | } else { | |
846 | /* couldn't clone -- lose tx status ... */ | |
847 | skb = orig_skb; | |
848 | } | |
849 | ||
850 | return skb; | |
851 | } | |
852 | ||
5e6e3a92 BZ |
853 | /* |
854 | * CFG802.11 network device handler for data transmission. | |
855 | */ | |
856 | static int | |
857 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
858 | { | |
859 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 860 | struct sk_buff *new_skb; |
5e6e3a92 | 861 | struct mwifiex_txinfo *tx_info; |
808bbebc | 862 | bool multicast; |
5e6e3a92 | 863 | |
acebe8c1 ZL |
864 | mwifiex_dbg(priv->adapter, DATA, |
865 | "data: %lu BSS(%d-%d): Data <= kernel\n", | |
866 | jiffies, priv->bss_type, priv->bss_num); | |
5e6e3a92 BZ |
867 | |
868 | if (priv->adapter->surprise_removed) { | |
b53575ec | 869 | kfree_skb(skb); |
5e6e3a92 BZ |
870 | priv->stats.tx_dropped++; |
871 | return 0; | |
872 | } | |
873 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
acebe8c1 ZL |
874 | mwifiex_dbg(priv->adapter, ERROR, |
875 | "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 876 | kfree_skb(skb); |
5e6e3a92 BZ |
877 | priv->stats.tx_dropped++; |
878 | return 0; | |
879 | } | |
880 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
acebe8c1 ZL |
881 | mwifiex_dbg(priv->adapter, DATA, |
882 | "data: Tx: insufficient skb headroom %d\n", | |
883 | skb_headroom(skb)); | |
5e6e3a92 BZ |
884 | /* Insufficient skb headroom - allocate a new skb */ |
885 | new_skb = | |
886 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
887 | if (unlikely(!new_skb)) { | |
acebe8c1 ZL |
888 | mwifiex_dbg(priv->adapter, ERROR, |
889 | "Tx: cannot alloca new_skb\n"); | |
b53575ec | 890 | kfree_skb(skb); |
5e6e3a92 BZ |
891 | priv->stats.tx_dropped++; |
892 | return 0; | |
893 | } | |
894 | kfree_skb(skb); | |
895 | skb = new_skb; | |
acebe8c1 ZL |
896 | mwifiex_dbg(priv->adapter, INFO, |
897 | "info: new skb headroomd %d\n", | |
898 | skb_headroom(skb)); | |
5e6e3a92 BZ |
899 | } |
900 | ||
901 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 902 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
903 | tx_info->bss_num = priv->bss_num; |
904 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 905 | tx_info->pkt_len = skb->len; |
47411a06 | 906 | |
808bbebc AK |
907 | multicast = is_multicast_ether_addr(skb->data); |
908 | ||
909 | if (unlikely(!multicast && skb->sk && | |
910 | skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS && | |
911 | priv->adapter->fw_api_ver == MWIFIEX_FW_V15)) | |
912 | skb = mwifiex_clone_skb_for_tx_status(priv, | |
913 | skb, | |
18ca4382 | 914 | MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS, NULL); |
808bbebc | 915 | |
47411a06 AP |
916 | /* Record the current time the packet was queued; used to |
917 | * determine the amount of time the packet was queued in | |
918 | * the driver before it was sent to the firmware. | |
919 | * The delay is then sent along with the packet to the | |
920 | * firmware for aggregate delay calculation for stats and | |
921 | * MSDU lifetime expiry. | |
922 | */ | |
c64800e7 | 923 | __net_timestamp(skb); |
5e6e3a92 | 924 | |
9927baa3 AP |
925 | if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && |
926 | priv->bss_type == MWIFIEX_BSS_TYPE_STA && | |
927 | !ether_addr_equal_unaligned(priv->cfg_bssid, skb->data)) { | |
928 | if (priv->adapter->auto_tdls && priv->check_tdls_tx) | |
929 | mwifiex_tdls_check_tx(priv, skb); | |
930 | } | |
931 | ||
e39faa73 | 932 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
933 | |
934 | return 0; | |
935 | } | |
936 | ||
937 | /* | |
938 | * CFG802.11 network device handler for setting MAC address. | |
939 | */ | |
940 | static int | |
941 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
942 | { | |
943 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 944 | struct sockaddr *hw_addr = addr; |
270e58e8 | 945 | int ret; |
5e6e3a92 BZ |
946 | |
947 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
948 | ||
600f5d90 | 949 | /* Send request to firmware */ |
fa0ecbb9 BZ |
950 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
951 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
952 | |
953 | if (!ret) | |
954 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
955 | else | |
acebe8c1 ZL |
956 | mwifiex_dbg(priv->adapter, ERROR, |
957 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 958 | |
5e6e3a92 BZ |
959 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
960 | ||
600f5d90 | 961 | return ret; |
5e6e3a92 BZ |
962 | } |
963 | ||
964 | /* | |
965 | * CFG802.11 network device handler for setting multicast list. | |
966 | */ | |
967 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
968 | { | |
969 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
970 | struct mwifiex_multicast_list mcast_list; |
971 | ||
972 | if (dev->flags & IFF_PROMISC) { | |
973 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
974 | } else if (dev->flags & IFF_ALLMULTI || | |
975 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
976 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
977 | } else { | |
978 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
979 | mcast_list.num_multicast_addr = |
980 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
981 | } |
982 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
983 | } |
984 | ||
985 | /* | |
986 | * CFG802.11 network device handler for transmission timeout. | |
987 | */ | |
988 | static void | |
989 | mwifiex_tx_timeout(struct net_device *dev) | |
990 | { | |
991 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
992 | ||
5e6e3a92 | 993 | priv->num_tx_timeout++; |
8908c7d5 | 994 | priv->tx_timeout_cnt++; |
acebe8c1 ZL |
995 | mwifiex_dbg(priv->adapter, ERROR, |
996 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
997 | jiffies, priv->tx_timeout_cnt, priv->bss_type, | |
998 | priv->bss_num); | |
8908c7d5 AN |
999 | mwifiex_set_trans_start(dev); |
1000 | ||
1001 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
1002 | priv->adapter->if_ops.card_reset) { | |
acebe8c1 ZL |
1003 | mwifiex_dbg(priv->adapter, ERROR, |
1004 | "tx_timeout_cnt exceeds threshold.\t" | |
1005 | "Triggering card reset!\n"); | |
8908c7d5 AN |
1006 | priv->adapter->if_ops.card_reset(priv->adapter); |
1007 | } | |
5e6e3a92 BZ |
1008 | } |
1009 | ||
7e4e5d2c ZL |
1010 | void mwifiex_multi_chan_resync(struct mwifiex_adapter *adapter) |
1011 | { | |
1012 | struct usb_card_rec *card = adapter->card; | |
1013 | struct mwifiex_private *priv; | |
1014 | u16 tx_buf_size; | |
1015 | int i, ret; | |
1016 | ||
1017 | card->mc_resync_flag = true; | |
1018 | for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) { | |
1019 | if (atomic_read(&card->port[i].tx_data_urb_pending)) { | |
1020 | mwifiex_dbg(adapter, WARN, "pending data urb in sys\n"); | |
1021 | return; | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | card->mc_resync_flag = false; | |
1026 | tx_buf_size = 0xffff; | |
1027 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | |
1028 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_RECONFIGURE_TX_BUFF, | |
1029 | HostCmd_ACT_GEN_SET, 0, &tx_buf_size, false); | |
1030 | if (ret) | |
1031 | mwifiex_dbg(adapter, ERROR, | |
1032 | "send reconfig tx buf size cmd err\n"); | |
1033 | } | |
1034 | EXPORT_SYMBOL_GPL(mwifiex_multi_chan_resync); | |
1035 | ||
fc697159 | 1036 | void mwifiex_drv_info_dump(struct mwifiex_adapter *adapter) |
11cd07a9 XH |
1037 | { |
1038 | void *p; | |
1039 | char drv_version[64]; | |
1040 | struct usb_card_rec *cardp; | |
1041 | struct sdio_mmc_card *sdio_card; | |
1042 | struct mwifiex_private *priv; | |
1043 | int i, idx; | |
1044 | struct netdev_queue *txq; | |
1045 | struct mwifiex_debug_info *debug_info; | |
1046 | ||
1047 | if (adapter->drv_info_dump) { | |
1048 | vfree(adapter->drv_info_dump); | |
0769b277 | 1049 | adapter->drv_info_dump = NULL; |
11cd07a9 XH |
1050 | adapter->drv_info_size = 0; |
1051 | } | |
1052 | ||
9cc0dbf0 | 1053 | mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump start===\n"); |
11cd07a9 XH |
1054 | |
1055 | adapter->drv_info_dump = vzalloc(MWIFIEX_DRV_INFO_SIZE_MAX); | |
1056 | ||
1057 | if (!adapter->drv_info_dump) | |
1058 | return; | |
1059 | ||
1060 | p = (char *)(adapter->drv_info_dump); | |
1061 | p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); | |
1062 | ||
1063 | mwifiex_drv_get_driver_version(adapter, drv_version, | |
1064 | sizeof(drv_version) - 1); | |
1065 | p += sprintf(p, "driver_version = %s\n", drv_version); | |
1066 | ||
1067 | if (adapter->iface_type == MWIFIEX_USB) { | |
1068 | cardp = (struct usb_card_rec *)adapter->card; | |
1069 | p += sprintf(p, "tx_cmd_urb_pending = %d\n", | |
1070 | atomic_read(&cardp->tx_cmd_urb_pending)); | |
308fe29e ZL |
1071 | p += sprintf(p, "tx_data_urb_pending_port_0 = %d\n", |
1072 | atomic_read(&cardp->port[0].tx_data_urb_pending)); | |
1073 | p += sprintf(p, "tx_data_urb_pending_port_1 = %d\n", | |
1074 | atomic_read(&cardp->port[1].tx_data_urb_pending)); | |
11cd07a9 XH |
1075 | p += sprintf(p, "rx_cmd_urb_pending = %d\n", |
1076 | atomic_read(&cardp->rx_cmd_urb_pending)); | |
1077 | p += sprintf(p, "rx_data_urb_pending = %d\n", | |
1078 | atomic_read(&cardp->rx_data_urb_pending)); | |
1079 | } | |
1080 | ||
1081 | p += sprintf(p, "tx_pending = %d\n", | |
1082 | atomic_read(&adapter->tx_pending)); | |
1083 | p += sprintf(p, "rx_pending = %d\n", | |
1084 | atomic_read(&adapter->rx_pending)); | |
1085 | ||
1086 | if (adapter->iface_type == MWIFIEX_SDIO) { | |
1087 | sdio_card = (struct sdio_mmc_card *)adapter->card; | |
1088 | p += sprintf(p, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n", | |
1089 | sdio_card->mp_rd_bitmap, sdio_card->curr_rd_port); | |
1090 | p += sprintf(p, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n", | |
1091 | sdio_card->mp_wr_bitmap, sdio_card->curr_wr_port); | |
1092 | } | |
1093 | ||
1094 | for (i = 0; i < adapter->priv_num; i++) { | |
1095 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
1096 | continue; | |
1097 | priv = adapter->priv[i]; | |
1098 | p += sprintf(p, "\n[interface : \"%s\"]\n", | |
1099 | priv->netdev->name); | |
1100 | p += sprintf(p, "wmm_tx_pending[0] = %d\n", | |
1101 | atomic_read(&priv->wmm_tx_pending[0])); | |
1102 | p += sprintf(p, "wmm_tx_pending[1] = %d\n", | |
1103 | atomic_read(&priv->wmm_tx_pending[1])); | |
1104 | p += sprintf(p, "wmm_tx_pending[2] = %d\n", | |
1105 | atomic_read(&priv->wmm_tx_pending[2])); | |
1106 | p += sprintf(p, "wmm_tx_pending[3] = %d\n", | |
1107 | atomic_read(&priv->wmm_tx_pending[3])); | |
1108 | p += sprintf(p, "media_state=\"%s\"\n", !priv->media_connected ? | |
1109 | "Disconnected" : "Connected"); | |
1110 | p += sprintf(p, "carrier %s\n", (netif_carrier_ok(priv->netdev) | |
1111 | ? "on" : "off")); | |
1112 | for (idx = 0; idx < priv->netdev->num_tx_queues; idx++) { | |
1113 | txq = netdev_get_tx_queue(priv->netdev, idx); | |
1114 | p += sprintf(p, "tx queue %d:%s ", idx, | |
1115 | netif_tx_queue_stopped(txq) ? | |
1116 | "stopped" : "started"); | |
1117 | } | |
1118 | p += sprintf(p, "\n%s: num_tx_timeout = %d\n", | |
1119 | priv->netdev->name, priv->num_tx_timeout); | |
1120 | } | |
1121 | ||
4646968b XH |
1122 | if (adapter->iface_type == MWIFIEX_SDIO || |
1123 | adapter->iface_type == MWIFIEX_PCIE) { | |
1124 | p += sprintf(p, "\n=== %s register dump===\n", | |
1125 | adapter->iface_type == MWIFIEX_SDIO ? | |
1126 | "SDIO" : "PCIE"); | |
809c6ea8 XH |
1127 | if (adapter->if_ops.reg_dump) |
1128 | p += adapter->if_ops.reg_dump(adapter, p); | |
1129 | } | |
9cc0dbf0 | 1130 | p += sprintf(p, "\n=== more debug information\n"); |
11cd07a9 XH |
1131 | debug_info = kzalloc(sizeof(*debug_info), GFP_KERNEL); |
1132 | if (debug_info) { | |
1133 | for (i = 0; i < adapter->priv_num; i++) { | |
1134 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
1135 | continue; | |
1136 | priv = adapter->priv[i]; | |
1137 | mwifiex_get_debug_info(priv, debug_info); | |
1138 | p += mwifiex_debug_info_to_buffer(priv, p, debug_info); | |
1139 | break; | |
1140 | } | |
1141 | kfree(debug_info); | |
1142 | } | |
1143 | ||
1144 | adapter->drv_info_size = p - adapter->drv_info_dump; | |
9cc0dbf0 | 1145 | mwifiex_dbg(adapter, MSG, "===mwifiex driverinfo dump end===\n"); |
11cd07a9 | 1146 | } |
fc697159 | 1147 | EXPORT_SYMBOL_GPL(mwifiex_drv_info_dump); |
11cd07a9 | 1148 | |
57670ee8 AK |
1149 | void mwifiex_upload_device_dump(struct mwifiex_adapter *adapter) |
1150 | { | |
1151 | u8 idx, *dump_data, *fw_dump_ptr; | |
1152 | u32 dump_len; | |
1153 | ||
1154 | dump_len = (strlen("========Start dump driverinfo========\n") + | |
1155 | adapter->drv_info_size + | |
1156 | strlen("\n========End dump========\n")); | |
1157 | ||
1158 | for (idx = 0; idx < adapter->num_mem_types; idx++) { | |
1159 | struct memory_type_mapping *entry = | |
1160 | &adapter->mem_type_mapping_tbl[idx]; | |
1161 | ||
1162 | if (entry->mem_ptr) { | |
1163 | dump_len += (strlen("========Start dump ") + | |
1164 | strlen(entry->mem_name) + | |
1165 | strlen("========\n") + | |
1166 | (entry->mem_size + 1) + | |
1167 | strlen("\n========End dump========\n")); | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | dump_data = vzalloc(dump_len + 1); | |
1172 | if (!dump_data) | |
1173 | goto done; | |
1174 | ||
1175 | fw_dump_ptr = dump_data; | |
1176 | ||
1177 | /* Dump all the memory data into single file, a userspace script will | |
1178 | * be used to split all the memory data to multiple files | |
1179 | */ | |
1180 | mwifiex_dbg(adapter, MSG, | |
1181 | "== mwifiex dump information to /sys/class/devcoredump start"); | |
1182 | ||
1183 | strcpy(fw_dump_ptr, "========Start dump driverinfo========\n"); | |
1184 | fw_dump_ptr += strlen("========Start dump driverinfo========\n"); | |
1185 | memcpy(fw_dump_ptr, adapter->drv_info_dump, adapter->drv_info_size); | |
1186 | fw_dump_ptr += adapter->drv_info_size; | |
1187 | strcpy(fw_dump_ptr, "\n========End dump========\n"); | |
1188 | fw_dump_ptr += strlen("\n========End dump========\n"); | |
1189 | ||
1190 | for (idx = 0; idx < adapter->num_mem_types; idx++) { | |
1191 | struct memory_type_mapping *entry = | |
1192 | &adapter->mem_type_mapping_tbl[idx]; | |
1193 | ||
1194 | if (entry->mem_ptr) { | |
1195 | strcpy(fw_dump_ptr, "========Start dump "); | |
1196 | fw_dump_ptr += strlen("========Start dump "); | |
1197 | ||
1198 | strcpy(fw_dump_ptr, entry->mem_name); | |
1199 | fw_dump_ptr += strlen(entry->mem_name); | |
1200 | ||
1201 | strcpy(fw_dump_ptr, "========\n"); | |
1202 | fw_dump_ptr += strlen("========\n"); | |
1203 | ||
1204 | memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size); | |
1205 | fw_dump_ptr += entry->mem_size; | |
1206 | ||
1207 | strcpy(fw_dump_ptr, "\n========End dump========\n"); | |
1208 | fw_dump_ptr += strlen("\n========End dump========\n"); | |
1209 | } | |
1210 | } | |
1211 | ||
1212 | /* device dump data will be free in device coredump release function | |
1213 | * after 5 min | |
1214 | */ | |
1215 | dev_coredumpv(adapter->dev, dump_data, dump_len, GFP_KERNEL); | |
1216 | mwifiex_dbg(adapter, MSG, | |
1217 | "== mwifiex dump information to /sys/class/devcoredump end"); | |
1218 | ||
1219 | done: | |
1220 | for (idx = 0; idx < adapter->num_mem_types; idx++) { | |
1221 | struct memory_type_mapping *entry = | |
1222 | &adapter->mem_type_mapping_tbl[idx]; | |
1223 | ||
1224 | if (entry->mem_ptr) { | |
1225 | vfree(entry->mem_ptr); | |
1226 | entry->mem_ptr = NULL; | |
1227 | } | |
1228 | entry->mem_size = 0; | |
1229 | } | |
1230 | ||
1231 | if (adapter->drv_info_dump) { | |
1232 | vfree(adapter->drv_info_dump); | |
1233 | adapter->drv_info_dump = NULL; | |
1234 | adapter->drv_info_size = 0; | |
1235 | } | |
1236 | } | |
1237 | EXPORT_SYMBOL_GPL(mwifiex_upload_device_dump); | |
1238 | ||
5e6e3a92 BZ |
1239 | /* |
1240 | * CFG802.11 network device handler for statistics retrieval. | |
1241 | */ | |
1242 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
1243 | { | |
1244 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
1245 | ||
1246 | return &priv->stats; | |
1247 | } | |
1248 | ||
47411a06 | 1249 | static u16 |
f663dd9a | 1250 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 1251 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 1252 | { |
fa9ffc74 | 1253 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
1254 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
1255 | } | |
1256 | ||
5e6e3a92 BZ |
1257 | /* Network device handlers */ |
1258 | static const struct net_device_ops mwifiex_netdev_ops = { | |
1259 | .ndo_open = mwifiex_open, | |
1260 | .ndo_stop = mwifiex_close, | |
1261 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
1262 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
fe24372d | 1263 | .ndo_validate_addr = eth_validate_addr, |
5e6e3a92 BZ |
1264 | .ndo_tx_timeout = mwifiex_tx_timeout, |
1265 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 1266 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 1267 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
1268 | }; |
1269 | ||
1270 | /* | |
1271 | * This function initializes the private structure parameters. | |
1272 | * | |
1273 | * The following wait queues are initialized - | |
1274 | * - IOCTL wait queue | |
1275 | * - Command wait queue | |
1276 | * - Statistics wait queue | |
1277 | * | |
1278 | * ...and the following default parameters are set - | |
1279 | * - Current key index : Set to 0 | |
1280 | * - Rate index : Set to auto | |
1281 | * - Media connected : Set to disconnected | |
1282 | * - Adhoc link sensed : Set to false | |
1283 | * - Nick name : Set to null | |
1284 | * - Number of Tx timeout : Set to 0 | |
1285 | * - Device address : Set to current address | |
cbf6e055 | 1286 | * - Rx histogram statistc : Set to 0 |
5e6e3a92 BZ |
1287 | * |
1288 | * In addition, the CFG80211 work queue is also created. | |
1289 | */ | |
93a1df48 | 1290 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
047eaaf6 | 1291 | struct net_device *dev) |
5e6e3a92 BZ |
1292 | { |
1293 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 1294 | dev->destructor = free_netdev; |
5e6e3a92 | 1295 | /* Initialize private structure */ |
5e6e3a92 BZ |
1296 | priv->current_key_index = 0; |
1297 | priv->media_connected = false; | |
ede98bfa AP |
1298 | memset(priv->mgmt_ie, 0, |
1299 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
1300 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
1301 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
1302 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
2ade5667 | 1303 | priv->gen_idx = MWIFIEX_AUTO_IDX_MASK; |
5e6e3a92 | 1304 | priv->num_tx_timeout = 0; |
8d05eb22 | 1305 | ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr); |
5e6e3a92 | 1306 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
cbf6e055 XH |
1307 | |
1308 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || | |
1309 | GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { | |
1310 | priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL); | |
1311 | if (priv->hist_data) | |
1312 | mwifiex_hist_data_reset(priv); | |
1313 | } | |
5e6e3a92 BZ |
1314 | } |
1315 | ||
5e6e3a92 BZ |
1316 | /* |
1317 | * This function check if command is pending. | |
1318 | */ | |
1319 | int is_command_pending(struct mwifiex_adapter *adapter) | |
1320 | { | |
1321 | unsigned long flags; | |
1322 | int is_cmd_pend_q_empty; | |
1323 | ||
1324 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
1325 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
1326 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
1327 | ||
1328 | return !is_cmd_pend_q_empty; | |
1329 | } | |
1330 | ||
6e251174 AP |
1331 | /* |
1332 | * This is the RX work queue function. | |
1333 | * | |
1334 | * It handles the RX operations. | |
1335 | */ | |
1336 | static void mwifiex_rx_work_queue(struct work_struct *work) | |
1337 | { | |
1338 | struct mwifiex_adapter *adapter = | |
1339 | container_of(work, struct mwifiex_adapter, rx_work); | |
1340 | ||
1341 | if (adapter->surprise_removed) | |
1342 | return; | |
1343 | mwifiex_process_rx(adapter); | |
1344 | } | |
1345 | ||
5e6e3a92 BZ |
1346 | /* |
1347 | * This is the main work queue function. | |
1348 | * | |
1349 | * It handles the main process, which in turn handles the complete | |
1350 | * driver operations. | |
1351 | */ | |
1352 | static void mwifiex_main_work_queue(struct work_struct *work) | |
1353 | { | |
1354 | struct mwifiex_adapter *adapter = | |
1355 | container_of(work, struct mwifiex_adapter, main_work); | |
1356 | ||
1357 | if (adapter->surprise_removed) | |
1358 | return; | |
1359 | mwifiex_main_process(adapter); | |
1360 | } | |
1361 | ||
4c5dae59 AK |
1362 | /* |
1363 | * This function gets called during PCIe function level reset. Required | |
1364 | * code is extracted from mwifiex_remove_card() | |
1365 | */ | |
1366 | static int | |
1367 | mwifiex_shutdown_sw(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
1368 | { | |
1369 | struct mwifiex_private *priv; | |
1370 | int i; | |
1371 | ||
1372 | if (down_interruptible(sem)) | |
1373 | goto exit_sem_err; | |
1374 | ||
1375 | if (!adapter) | |
1376 | goto exit_remove; | |
1377 | ||
1378 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | |
1379 | mwifiex_deauthenticate(priv, NULL); | |
1380 | ||
1381 | /* We can no longer handle interrupts once we start doing the teardown | |
1382 | * below. | |
1383 | */ | |
1384 | if (adapter->if_ops.disable_int) | |
1385 | adapter->if_ops.disable_int(adapter); | |
1386 | ||
1387 | adapter->surprise_removed = true; | |
1388 | mwifiex_terminate_workqueue(adapter); | |
1389 | ||
1390 | /* Stop data */ | |
1391 | for (i = 0; i < adapter->priv_num; i++) { | |
1392 | priv = adapter->priv[i]; | |
1393 | if (priv && priv->netdev) { | |
1394 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); | |
1395 | if (netif_carrier_ok(priv->netdev)) | |
1396 | netif_carrier_off(priv->netdev); | |
1397 | netif_device_detach(priv->netdev); | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | mwifiex_dbg(adapter, CMD, "cmd: calling mwifiex_shutdown_drv...\n"); | |
1402 | adapter->init_wait_q_woken = false; | |
1403 | ||
1404 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
1405 | wait_event_interruptible(adapter->init_wait_q, | |
1406 | adapter->init_wait_q_woken); | |
1407 | if (adapter->if_ops.down_dev) | |
1408 | adapter->if_ops.down_dev(adapter); | |
1409 | ||
1410 | mwifiex_dbg(adapter, CMD, "cmd: mwifiex_shutdown_drv done\n"); | |
1411 | if (atomic_read(&adapter->rx_pending) || | |
1412 | atomic_read(&adapter->tx_pending) || | |
1413 | atomic_read(&adapter->cmd_pending)) { | |
1414 | mwifiex_dbg(adapter, ERROR, | |
1415 | "rx_pending=%d, tx_pending=%d,\t" | |
1416 | "cmd_pending=%d\n", | |
1417 | atomic_read(&adapter->rx_pending), | |
1418 | atomic_read(&adapter->tx_pending), | |
1419 | atomic_read(&adapter->cmd_pending)); | |
1420 | } | |
1421 | ||
1422 | for (i = 0; i < adapter->priv_num; i++) { | |
1423 | priv = adapter->priv[i]; | |
1424 | if (!priv) | |
1425 | continue; | |
1426 | rtnl_lock(); | |
1427 | if (priv->netdev && | |
1428 | priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) | |
1429 | mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev); | |
1430 | rtnl_unlock(); | |
1431 | } | |
1432 | ||
1433 | exit_remove: | |
1434 | up(sem); | |
1435 | exit_sem_err: | |
1436 | mwifiex_dbg(adapter, INFO, "%s, successful\n", __func__); | |
1437 | return 0; | |
1438 | } | |
1439 | ||
1440 | /* This function gets called during PCIe function level reset. Required | |
1441 | * code is extracted from mwifiex_add_card() | |
1442 | */ | |
1443 | static int | |
1444 | mwifiex_reinit_sw(struct mwifiex_adapter *adapter, struct semaphore *sem, | |
1445 | struct mwifiex_if_ops *if_ops, u8 iface_type) | |
1446 | { | |
1447 | char fw_name[32]; | |
1448 | struct pcie_service_card *card = adapter->card; | |
1449 | ||
1450 | if (down_interruptible(sem)) | |
1451 | goto exit_sem_err; | |
1452 | ||
1453 | mwifiex_init_lock_list(adapter); | |
1454 | if (adapter->if_ops.up_dev) | |
1455 | adapter->if_ops.up_dev(adapter); | |
1456 | ||
1457 | adapter->iface_type = iface_type; | |
1458 | adapter->card_sem = sem; | |
1459 | ||
1460 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
1461 | adapter->surprise_removed = false; | |
1462 | init_waitqueue_head(&adapter->init_wait_q); | |
1463 | adapter->is_suspended = false; | |
1464 | adapter->hs_activated = false; | |
1465 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
1466 | init_waitqueue_head(&adapter->cmd_wait_q.wait); | |
1467 | adapter->cmd_wait_q.status = 0; | |
1468 | adapter->scan_wait_q_woken = false; | |
1469 | ||
1470 | if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) | |
1471 | adapter->rx_work_enabled = true; | |
1472 | ||
1473 | adapter->workqueue = | |
1474 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
1475 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
1476 | if (!adapter->workqueue) | |
1477 | goto err_kmalloc; | |
1478 | ||
1479 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
1480 | ||
1481 | if (adapter->rx_work_enabled) { | |
1482 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
1483 | WQ_HIGHPRI | | |
1484 | WQ_MEM_RECLAIM | | |
1485 | WQ_UNBOUND, 1); | |
1486 | if (!adapter->rx_workqueue) | |
1487 | goto err_kmalloc; | |
1488 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
1489 | } | |
1490 | ||
1491 | /* Register the device. Fill up the private data structure with | |
1492 | * relevant information from the card. Some code extracted from | |
1493 | * mwifiex_register_dev() | |
1494 | */ | |
1495 | mwifiex_dbg(adapter, INFO, "%s, mwifiex_init_hw_fw()...\n", __func__); | |
1496 | strcpy(fw_name, adapter->fw_name); | |
1497 | strcpy(adapter->fw_name, PCIE8997_DEFAULT_WIFIFW_NAME); | |
1498 | ||
1499 | adapter->tx_buf_size = card->pcie.tx_buf_size; | |
1500 | adapter->ext_scan = card->pcie.can_ext_scan; | |
1501 | if (mwifiex_init_hw_fw(adapter, false)) { | |
1502 | strcpy(adapter->fw_name, fw_name); | |
1503 | mwifiex_dbg(adapter, ERROR, | |
1504 | "%s: firmware init failed\n", __func__); | |
1505 | goto err_init_fw; | |
1506 | } | |
1507 | strcpy(adapter->fw_name, fw_name); | |
1508 | mwifiex_dbg(adapter, INFO, "%s, successful\n", __func__); | |
1509 | up(sem); | |
1510 | return 0; | |
1511 | ||
1512 | err_init_fw: | |
1513 | mwifiex_dbg(adapter, ERROR, "info: %s: unregister device\n", __func__); | |
1514 | if (adapter->if_ops.unregister_dev) | |
1515 | adapter->if_ops.unregister_dev(adapter); | |
1516 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { | |
1517 | mwifiex_dbg(adapter, ERROR, | |
1518 | "info: %s: shutdown mwifiex\n", __func__); | |
1519 | adapter->init_wait_q_woken = false; | |
1520 | ||
1521 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
1522 | wait_event_interruptible(adapter->init_wait_q, | |
1523 | adapter->init_wait_q_woken); | |
1524 | } | |
1525 | ||
1526 | err_kmalloc: | |
1527 | mwifiex_terminate_workqueue(adapter); | |
1528 | adapter->surprise_removed = true; | |
1529 | up(sem); | |
1530 | exit_sem_err: | |
1531 | mwifiex_dbg(adapter, INFO, "%s, error\n", __func__); | |
1532 | ||
1533 | return -1; | |
1534 | } | |
1535 | ||
1536 | /* This function processes pre and post PCIe function level resets. | |
1537 | * It performs software cleanup without touching PCIe specific code. | |
1538 | * Also, during initialization PCIe stuff is skipped. | |
1539 | */ | |
1540 | void mwifiex_do_flr(struct mwifiex_adapter *adapter, bool prepare) | |
1541 | { | |
1542 | struct mwifiex_if_ops if_ops; | |
1543 | ||
1544 | if (!prepare) { | |
1545 | mwifiex_reinit_sw(adapter, adapter->card_sem, &if_ops, | |
1546 | adapter->iface_type); | |
1547 | } else { | |
1548 | memcpy(&if_ops, &adapter->if_ops, | |
1549 | sizeof(struct mwifiex_if_ops)); | |
1550 | mwifiex_shutdown_sw(adapter, adapter->card_sem); | |
1551 | } | |
1552 | } | |
1553 | EXPORT_SYMBOL_GPL(mwifiex_do_flr); | |
1554 | ||
5e6e3a92 BZ |
1555 | /* |
1556 | * This function adds the card. | |
1557 | * | |
1558 | * This function follows the following major steps to set up the device - | |
1559 | * - Initialize software. This includes probing the card, registering | |
1560 | * the interface operations table, and allocating/initializing the | |
1561 | * adapter structure | |
1562 | * - Set up the netlink socket | |
1563 | * - Create and start the main work queue | |
1564 | * - Register the device | |
1565 | * - Initialize firmware and hardware | |
1566 | * - Add logical interfaces | |
1567 | */ | |
1568 | int | |
1569 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 1570 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 1571 | { |
2be7859f | 1572 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
1573 | |
1574 | if (down_interruptible(sem)) | |
1575 | goto exit_sem_err; | |
1576 | ||
93a1df48 | 1577 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
1578 | pr_err("%s: software init failed\n", __func__); |
1579 | goto err_init_sw; | |
1580 | } | |
1581 | ||
d930faee | 1582 | adapter->iface_type = iface_type; |
6b41f941 | 1583 | adapter->card_sem = sem; |
d930faee | 1584 | |
5e6e3a92 | 1585 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
1586 | adapter->surprise_removed = false; |
1587 | init_waitqueue_head(&adapter->init_wait_q); | |
1588 | adapter->is_suspended = false; | |
1589 | adapter->hs_activated = false; | |
1590 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 1591 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 1592 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 1593 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 1594 | |
ec4a16b4 | 1595 | if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) { |
6e251174 AP |
1596 | adapter->rx_work_enabled = true; |
1597 | pr_notice("rx work enabled, cpus %d\n", num_possible_cpus()); | |
1598 | } | |
1599 | ||
448a71cc AK |
1600 | adapter->workqueue = |
1601 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
1602 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
1603 | if (!adapter->workqueue) |
1604 | goto err_kmalloc; | |
1605 | ||
1606 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
6e251174 AP |
1607 | |
1608 | if (adapter->rx_work_enabled) { | |
1609 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
1610 | WQ_HIGHPRI | | |
1611 | WQ_MEM_RECLAIM | | |
1612 | WQ_UNBOUND, 1); | |
1613 | if (!adapter->rx_workqueue) | |
1614 | goto err_kmalloc; | |
1615 | ||
1616 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
1617 | } | |
1618 | ||
5e6e3a92 | 1619 | /* Register the device. Fill up the private data structure with relevant |
232fde06 | 1620 | information from the card. */ |
5e6e3a92 BZ |
1621 | if (adapter->if_ops.register_dev(adapter)) { |
1622 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
1623 | goto err_registerdev; | |
1624 | } | |
1625 | ||
4c5dae59 | 1626 | if (mwifiex_init_hw_fw(adapter, true)) { |
5e6e3a92 BZ |
1627 | pr_err("%s: firmware init failed\n", __func__); |
1628 | goto err_init_fw; | |
1629 | } | |
2be7859f | 1630 | |
5e6e3a92 BZ |
1631 | return 0; |
1632 | ||
5e6e3a92 | 1633 | err_init_fw: |
5e6e3a92 | 1634 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
1635 | if (adapter->if_ops.unregister_dev) |
1636 | adapter->if_ops.unregister_dev(adapter); | |
7197325b | 1637 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
5e6e3a92 BZ |
1638 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
1639 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
1640 | |
1641 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1642 | wait_event_interruptible(adapter->init_wait_q, |
1643 | adapter->init_wait_q_woken); | |
1644 | } | |
6b41f941 AK |
1645 | err_registerdev: |
1646 | adapter->surprise_removed = true; | |
1647 | mwifiex_terminate_workqueue(adapter); | |
1648 | err_kmalloc: | |
5e6e3a92 BZ |
1649 | mwifiex_free_adapter(adapter); |
1650 | ||
1651 | err_init_sw: | |
1652 | up(sem); | |
1653 | ||
1654 | exit_sem_err: | |
1655 | return -1; | |
1656 | } | |
1657 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
1658 | ||
1659 | /* | |
1660 | * This function removes the card. | |
1661 | * | |
1662 | * This function follows the following major steps to remove the device - | |
1663 | * - Stop data traffic | |
1664 | * - Shutdown firmware | |
1665 | * - Remove the logical interfaces | |
1666 | * - Terminate the work queue | |
1667 | * - Unregister the device | |
1668 | * - Free the adapter structure | |
1669 | */ | |
1670 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
1671 | { | |
1672 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
1673 | int i; |
1674 | ||
c3ec0ff6 | 1675 | if (down_trylock(sem)) |
5e6e3a92 BZ |
1676 | goto exit_sem_err; |
1677 | ||
1678 | if (!adapter) | |
1679 | goto exit_remove; | |
1680 | ||
232fde06 DD |
1681 | /* We can no longer handle interrupts once we start doing the teardown |
1682 | * below. */ | |
1683 | if (adapter->if_ops.disable_int) | |
1684 | adapter->if_ops.disable_int(adapter); | |
1685 | ||
5e6e3a92 BZ |
1686 | adapter->surprise_removed = true; |
1687 | ||
9d2e85e0 MY |
1688 | mwifiex_terminate_workqueue(adapter); |
1689 | ||
5e6e3a92 BZ |
1690 | /* Stop data */ |
1691 | for (i = 0; i < adapter->priv_num; i++) { | |
1692 | priv = adapter->priv[i]; | |
93a1df48 | 1693 | if (priv && priv->netdev) { |
47411a06 | 1694 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
1695 | if (netif_carrier_ok(priv->netdev)) |
1696 | netif_carrier_off(priv->netdev); | |
1697 | } | |
1698 | } | |
1699 | ||
acebe8c1 ZL |
1700 | mwifiex_dbg(adapter, CMD, |
1701 | "cmd: calling mwifiex_shutdown_drv...\n"); | |
5e6e3a92 | 1702 | adapter->init_wait_q_woken = false; |
636c4598 YAP |
1703 | |
1704 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1705 | wait_event_interruptible(adapter->init_wait_q, |
1706 | adapter->init_wait_q_woken); | |
acebe8c1 ZL |
1707 | mwifiex_dbg(adapter, CMD, |
1708 | "cmd: mwifiex_shutdown_drv done\n"); | |
5e6e3a92 BZ |
1709 | if (atomic_read(&adapter->rx_pending) || |
1710 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 1711 | atomic_read(&adapter->cmd_pending)) { |
acebe8c1 ZL |
1712 | mwifiex_dbg(adapter, ERROR, |
1713 | "rx_pending=%d, tx_pending=%d,\t" | |
1714 | "cmd_pending=%d\n", | |
1715 | atomic_read(&adapter->rx_pending), | |
1716 | atomic_read(&adapter->tx_pending), | |
1717 | atomic_read(&adapter->cmd_pending)); | |
5e6e3a92 BZ |
1718 | } |
1719 | ||
93a1df48 YAP |
1720 | for (i = 0; i < adapter->priv_num; i++) { |
1721 | priv = adapter->priv[i]; | |
1722 | ||
1723 | if (!priv) | |
1724 | continue; | |
1725 | ||
1726 | rtnl_lock(); | |
4facc34a AP |
1727 | if (priv->netdev && |
1728 | priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) | |
1729 | mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev); | |
93a1df48 YAP |
1730 | rtnl_unlock(); |
1731 | } | |
1732 | ||
c2868ade AK |
1733 | wiphy_unregister(adapter->wiphy); |
1734 | wiphy_free(adapter->wiphy); | |
64b05e2f | 1735 | |
5e6e3a92 | 1736 | /* Unregister device */ |
acebe8c1 ZL |
1737 | mwifiex_dbg(adapter, INFO, |
1738 | "info: unregister device\n"); | |
4daffe35 AK |
1739 | if (adapter->if_ops.unregister_dev) |
1740 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 | 1741 | /* Free adapter structure */ |
acebe8c1 ZL |
1742 | mwifiex_dbg(adapter, INFO, |
1743 | "info: free adapter\n"); | |
5e6e3a92 BZ |
1744 | mwifiex_free_adapter(adapter); |
1745 | ||
1746 | exit_remove: | |
1747 | up(sem); | |
1748 | exit_sem_err: | |
1749 | return 0; | |
1750 | } | |
1751 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1752 | ||
36925e52 JP |
1753 | void _mwifiex_dbg(const struct mwifiex_adapter *adapter, int mask, |
1754 | const char *fmt, ...) | |
1755 | { | |
1756 | struct va_format vaf; | |
1757 | va_list args; | |
1758 | ||
1759 | if (!adapter->dev || !(adapter->debug_mask & mask)) | |
1760 | return; | |
1761 | ||
1762 | va_start(args, fmt); | |
1763 | ||
1764 | vaf.fmt = fmt; | |
1765 | vaf.va = &args; | |
1766 | ||
1767 | dev_info(adapter->dev, "%pV", &vaf); | |
1768 | ||
1769 | va_end(args); | |
1770 | } | |
1771 | EXPORT_SYMBOL_GPL(_mwifiex_dbg); | |
1772 | ||
5e6e3a92 BZ |
1773 | /* |
1774 | * This function initializes the module. | |
1775 | * | |
1776 | * The debug FS is also initialized if configured. | |
1777 | */ | |
1778 | static int | |
1779 | mwifiex_init_module(void) | |
1780 | { | |
1781 | #ifdef CONFIG_DEBUG_FS | |
1782 | mwifiex_debugfs_init(); | |
1783 | #endif | |
1784 | return 0; | |
1785 | } | |
1786 | ||
1787 | /* | |
1788 | * This function cleans up the module. | |
1789 | * | |
1790 | * The debug FS is removed if available. | |
1791 | */ | |
1792 | static void | |
1793 | mwifiex_cleanup_module(void) | |
1794 | { | |
1795 | #ifdef CONFIG_DEBUG_FS | |
1796 | mwifiex_debugfs_remove(); | |
1797 | #endif | |
1798 | } | |
1799 | ||
1800 | module_init(mwifiex_init_module); | |
1801 | module_exit(mwifiex_cleanup_module); | |
1802 | ||
1803 | MODULE_AUTHOR("Marvell International Ltd."); | |
1804 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1805 | MODULE_VERSION(VERSION); | |
1806 | MODULE_LICENSE("GPL v2"); |