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" | |
26 | ||
27 | const char driver_version[] = "mwifiex " VERSION " (%s) "; | |
388ec385 AK |
28 | static char *cal_data_cfg; |
29 | module_param(cal_data_cfg, charp, 0); | |
5e6e3a92 | 30 | |
0013c7ce AP |
31 | static unsigned short driver_mode; |
32 | module_param(driver_mode, ushort, 0); | |
33 | MODULE_PARM_DESC(driver_mode, | |
34 | "station=0x1(default), ap-sta=0x3, station-p2p=0x5, ap-sta-p2p=0x7"); | |
35 | ||
5e6e3a92 BZ |
36 | /* |
37 | * This function registers the device and performs all the necessary | |
38 | * initializations. | |
39 | * | |
40 | * The following initialization operations are performed - | |
41 | * - Allocate adapter structure | |
42 | * - Save interface specific operations table in adapter | |
43 | * - Call interface specific initialization routine | |
44 | * - Allocate private structures | |
45 | * - Set default adapter structure parameters | |
46 | * - Initialize locks | |
47 | * | |
48 | * In case of any errors during inittialization, this function also ensures | |
49 | * proper cleanup before exiting. | |
50 | */ | |
51 | static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops, | |
287546df | 52 | void **padapter) |
5e6e3a92 | 53 | { |
2be7859f AK |
54 | struct mwifiex_adapter *adapter; |
55 | int i; | |
5e6e3a92 BZ |
56 | |
57 | adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL); | |
5e6e3a92 | 58 | if (!adapter) |
b53575ec | 59 | return -ENOMEM; |
5e6e3a92 | 60 | |
287546df | 61 | *padapter = adapter; |
5e6e3a92 BZ |
62 | adapter->card = card; |
63 | ||
64 | /* Save interface specific operations in adapter */ | |
65 | memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops)); | |
66 | ||
67 | /* card specific initialization has been deferred until now .. */ | |
4daffe35 AK |
68 | if (adapter->if_ops.init_if) |
69 | if (adapter->if_ops.init_if(adapter)) | |
70 | goto error; | |
5e6e3a92 BZ |
71 | |
72 | adapter->priv_num = 0; | |
5e6e3a92 | 73 | |
64b05e2f AP |
74 | for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { |
75 | /* Allocate memory for private structure */ | |
76 | adapter->priv[i] = | |
77 | kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL); | |
78 | if (!adapter->priv[i]) | |
79 | goto error; | |
93a1df48 | 80 | |
64b05e2f | 81 | adapter->priv[i]->adapter = adapter; |
64b05e2f AP |
82 | adapter->priv_num++; |
83 | } | |
44b815c6 | 84 | mwifiex_init_lock_list(adapter); |
5e6e3a92 | 85 | |
c6c33e77 JL |
86 | setup_timer(&adapter->cmd_timer, mwifiex_cmd_timeout_func, |
87 | (unsigned long)adapter); | |
5e6e3a92 | 88 | |
5e6e3a92 BZ |
89 | return 0; |
90 | ||
91 | error: | |
92 | dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n"); | |
93 | ||
93a1df48 | 94 | for (i = 0; i < adapter->priv_num; i++) |
5e6e3a92 | 95 | kfree(adapter->priv[i]); |
93a1df48 | 96 | |
5e6e3a92 BZ |
97 | kfree(adapter); |
98 | ||
99 | return -1; | |
100 | } | |
101 | ||
102 | /* | |
103 | * This function unregisters the device and performs all the necessary | |
104 | * cleanups. | |
105 | * | |
106 | * The following cleanup operations are performed - | |
107 | * - Free the timers | |
108 | * - Free beacon buffers | |
109 | * - Free private structures | |
110 | * - Free adapter structure | |
111 | */ | |
112 | static int mwifiex_unregister(struct mwifiex_adapter *adapter) | |
113 | { | |
270e58e8 | 114 | s32 i; |
5e6e3a92 | 115 | |
4cfda67d AK |
116 | if (adapter->if_ops.cleanup_if) |
117 | adapter->if_ops.cleanup_if(adapter); | |
118 | ||
629873f2 | 119 | del_timer_sync(&adapter->cmd_timer); |
5e6e3a92 BZ |
120 | |
121 | /* Free private structures */ | |
122 | for (i = 0; i < adapter->priv_num; i++) { | |
123 | if (adapter->priv[i]) { | |
124 | mwifiex_free_curr_bcn(adapter->priv[i]); | |
125 | kfree(adapter->priv[i]); | |
126 | } | |
127 | } | |
128 | ||
bf354433 | 129 | vfree(adapter->chan_stats); |
5e6e3a92 BZ |
130 | kfree(adapter); |
131 | return 0; | |
132 | } | |
133 | ||
6e251174 AP |
134 | static int mwifiex_process_rx(struct mwifiex_adapter *adapter) |
135 | { | |
136 | unsigned long flags; | |
137 | struct sk_buff *skb; | |
6e251174 AP |
138 | |
139 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
140 | if (adapter->rx_processing || adapter->rx_locked) { | |
141 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
142 | goto exit_rx_proc; | |
143 | } else { | |
144 | adapter->rx_processing = true; | |
145 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
146 | } | |
147 | ||
148 | /* Check for Rx data */ | |
149 | while ((skb = skb_dequeue(&adapter->rx_data_q))) { | |
150 | atomic_dec(&adapter->rx_pending); | |
381e9fff AK |
151 | if ((adapter->delay_main_work || |
152 | adapter->iface_type == MWIFIEX_USB) && | |
b43a0d9d | 153 | (atomic_read(&adapter->rx_pending) < LOW_RX_PENDING)) { |
cf6a64fd AK |
154 | if (adapter->if_ops.submit_rem_rx_urbs) |
155 | adapter->if_ops.submit_rem_rx_urbs(adapter); | |
6e251174 | 156 | adapter->delay_main_work = false; |
b43a0d9d | 157 | queue_work(adapter->workqueue, &adapter->main_work); |
6e251174 AP |
158 | } |
159 | mwifiex_handle_rx_packet(adapter, skb); | |
160 | } | |
161 | spin_lock_irqsave(&adapter->rx_proc_lock, flags); | |
162 | adapter->rx_processing = false; | |
163 | spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); | |
164 | ||
6e251174 AP |
165 | exit_rx_proc: |
166 | return 0; | |
167 | } | |
168 | ||
5e6e3a92 BZ |
169 | /* |
170 | * The main process. | |
171 | * | |
172 | * This function is the main procedure of the driver and handles various driver | |
173 | * operations. It runs in a loop and provides the core functionalities. | |
174 | * | |
175 | * The main responsibilities of this function are - | |
176 | * - Ensure concurrency control | |
177 | * - Handle pending interrupts and call interrupt handlers | |
178 | * - Wake up the card if required | |
179 | * - Handle command responses and call response handlers | |
180 | * - Handle events and call event handlers | |
181 | * - Execute pending commands | |
182 | * - Transmit pending data packets | |
183 | */ | |
184 | int mwifiex_main_process(struct mwifiex_adapter *adapter) | |
185 | { | |
186 | int ret = 0; | |
187 | unsigned long flags; | |
188 | ||
189 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
190 | ||
191 | /* Check if already processing */ | |
192 | if (adapter->mwifiex_processing) { | |
04c7b363 | 193 | adapter->more_task_flag = true; |
5e6e3a92 BZ |
194 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); |
195 | goto exit_main_proc; | |
196 | } else { | |
197 | adapter->mwifiex_processing = true; | |
5e6e3a92 BZ |
198 | } |
199 | process_start: | |
200 | do { | |
04c7b363 SL |
201 | adapter->more_task_flag = false; |
202 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
5e6e3a92 BZ |
203 | if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) || |
204 | (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY)) | |
205 | break; | |
206 | ||
381e9fff AK |
207 | /* For non-USB interfaces, If we process interrupts first, it |
208 | * would increase RX pending even further. Avoid this by | |
209 | * checking if rx_pending has crossed high threshold and | |
210 | * schedule rx work queue and then process interrupts. | |
211 | * For USB interface, there are no interrupts. We already have | |
212 | * HIGH_RX_PENDING check in usb.c | |
6e251174 | 213 | */ |
381e9fff AK |
214 | if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING && |
215 | adapter->iface_type != MWIFIEX_USB) { | |
6e251174 AP |
216 | adapter->delay_main_work = true; |
217 | if (!adapter->rx_processing) | |
218 | queue_work(adapter->rx_workqueue, | |
219 | &adapter->rx_work); | |
220 | break; | |
221 | } | |
222 | ||
5e6e3a92 BZ |
223 | /* Handle pending interrupt if any */ |
224 | if (adapter->int_status) { | |
225 | if (adapter->hs_activated) | |
226 | mwifiex_process_hs_config(adapter); | |
4daffe35 AK |
227 | if (adapter->if_ops.process_int_status) |
228 | adapter->if_ops.process_int_status(adapter); | |
5e6e3a92 BZ |
229 | } |
230 | ||
6e251174 AP |
231 | if (adapter->rx_work_enabled && adapter->data_received) |
232 | queue_work(adapter->rx_workqueue, &adapter->rx_work); | |
233 | ||
5e6e3a92 BZ |
234 | /* Need to wake up the card ? */ |
235 | if ((adapter->ps_state == PS_STATE_SLEEP) && | |
236 | (adapter->pm_wakeup_card_req && | |
237 | !adapter->pm_wakeup_fw_try) && | |
f57c1edc YAP |
238 | (is_command_pending(adapter) || |
239 | !mwifiex_wmm_lists_empty(adapter))) { | |
5e6e3a92 | 240 | adapter->pm_wakeup_fw_try = true; |
4636187d | 241 | mod_timer(&adapter->wakeup_timer, jiffies + (HZ*3)); |
5e6e3a92 | 242 | adapter->if_ops.wakeup(adapter); |
04c7b363 | 243 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
5e6e3a92 BZ |
244 | continue; |
245 | } | |
4daffe35 | 246 | |
5e6e3a92 | 247 | if (IS_CARD_RX_RCVD(adapter)) { |
6e251174 | 248 | adapter->data_received = false; |
5e6e3a92 | 249 | adapter->pm_wakeup_fw_try = false; |
4636187d | 250 | del_timer_sync(&adapter->wakeup_timer); |
5e6e3a92 BZ |
251 | if (adapter->ps_state == PS_STATE_SLEEP) |
252 | adapter->ps_state = PS_STATE_AWAKE; | |
253 | } else { | |
254 | /* We have tried to wakeup the card already */ | |
255 | if (adapter->pm_wakeup_fw_try) | |
256 | break; | |
257 | if (adapter->ps_state != PS_STATE_AWAKE || | |
258 | adapter->tx_lock_flag) | |
259 | break; | |
260 | ||
5ec39efa | 261 | if ((!adapter->scan_chan_gap_enabled && |
5ec39efa | 262 | adapter->scan_processing) || adapter->data_sent || |
f57c1edc YAP |
263 | mwifiex_wmm_lists_empty(adapter)) { |
264 | if (adapter->cmd_sent || adapter->curr_cmd || | |
265 | (!is_command_pending(adapter))) | |
5e6e3a92 BZ |
266 | break; |
267 | } | |
268 | } | |
269 | ||
20474129 AK |
270 | /* Check for event */ |
271 | if (adapter->event_received) { | |
272 | adapter->event_received = false; | |
273 | mwifiex_process_event(adapter); | |
274 | } | |
275 | ||
5e6e3a92 BZ |
276 | /* Check for Cmd Resp */ |
277 | if (adapter->cmd_resp_received) { | |
278 | adapter->cmd_resp_received = false; | |
279 | mwifiex_process_cmdresp(adapter); | |
280 | ||
281 | /* call mwifiex back when init_fw is done */ | |
282 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) { | |
283 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
284 | mwifiex_init_fw_complete(adapter); | |
285 | } | |
286 | } | |
287 | ||
5e6e3a92 BZ |
288 | /* Check if we need to confirm Sleep Request |
289 | received previously */ | |
290 | if (adapter->ps_state == PS_STATE_PRE_SLEEP) { | |
291 | if (!adapter->cmd_sent && !adapter->curr_cmd) | |
292 | mwifiex_check_ps_cond(adapter); | |
293 | } | |
294 | ||
295 | /* * The ps_state may have been changed during processing of | |
296 | * Sleep Request event. | |
297 | */ | |
f57c1edc YAP |
298 | if ((adapter->ps_state == PS_STATE_SLEEP) || |
299 | (adapter->ps_state == PS_STATE_PRE_SLEEP) || | |
300 | (adapter->ps_state == PS_STATE_SLEEP_CFM) || | |
04c7b363 SL |
301 | adapter->tx_lock_flag){ |
302 | spin_lock_irqsave(&adapter->main_proc_lock, flags); | |
5e6e3a92 | 303 | continue; |
04c7b363 | 304 | } |
5e6e3a92 BZ |
305 | |
306 | if (!adapter->cmd_sent && !adapter->curr_cmd) { | |
307 | if (mwifiex_exec_next_cmd(adapter) == -1) { | |
308 | ret = -1; | |
309 | break; | |
310 | } | |
311 | } | |
312 | ||
5ec39efa | 313 | if ((adapter->scan_chan_gap_enabled || |
d8d91253 | 314 | !adapter->scan_processing) && |
3249ba73 | 315 | !adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) { |
5e6e3a92 BZ |
316 | mwifiex_wmm_process_tx(adapter); |
317 | if (adapter->hs_activated) { | |
318 | adapter->is_hs_configured = false; | |
319 | mwifiex_hs_activated_event | |
320 | (mwifiex_get_priv | |
321 | (adapter, MWIFIEX_BSS_ROLE_ANY), | |
322 | false); | |
323 | } | |
324 | } | |
325 | ||
326 | if (adapter->delay_null_pkt && !adapter->cmd_sent && | |
f57c1edc YAP |
327 | !adapter->curr_cmd && !is_command_pending(adapter) && |
328 | mwifiex_wmm_lists_empty(adapter)) { | |
5e6e3a92 BZ |
329 | if (!mwifiex_send_null_packet |
330 | (mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), | |
331 | MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | | |
332 | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) { | |
333 | adapter->delay_null_pkt = false; | |
334 | adapter->ps_state = PS_STATE_SLEEP; | |
335 | } | |
336 | break; | |
337 | } | |
04c7b363 | 338 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
5e6e3a92 BZ |
339 | } while (true); |
340 | ||
453b0c3f | 341 | spin_lock_irqsave(&adapter->main_proc_lock, flags); |
04c7b363 | 342 | if (adapter->more_task_flag) |
5e6e3a92 | 343 | goto process_start; |
5e6e3a92 BZ |
344 | adapter->mwifiex_processing = false; |
345 | spin_unlock_irqrestore(&adapter->main_proc_lock, flags); | |
346 | ||
347 | exit_main_proc: | |
348 | if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) | |
349 | mwifiex_shutdown_drv(adapter); | |
350 | return ret; | |
351 | } | |
601216e1 | 352 | EXPORT_SYMBOL_GPL(mwifiex_main_process); |
5e6e3a92 | 353 | |
5e6e3a92 BZ |
354 | /* |
355 | * This function frees the adapter structure. | |
356 | * | |
357 | * Additionally, this closes the netlink socket, frees the timers | |
358 | * and private structures. | |
359 | */ | |
360 | static void mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
361 | { | |
362 | if (!adapter) { | |
363 | pr_err("%s: adapter is NULL\n", __func__); | |
364 | return; | |
365 | } | |
366 | ||
367 | mwifiex_unregister(adapter); | |
368 | pr_debug("info: %s: free adapter\n", __func__); | |
369 | } | |
370 | ||
6b41f941 AK |
371 | /* |
372 | * This function cancels all works in the queue and destroys | |
373 | * the main workqueue. | |
374 | */ | |
375 | static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) | |
376 | { | |
377 | flush_workqueue(adapter->workqueue); | |
378 | destroy_workqueue(adapter->workqueue); | |
379 | adapter->workqueue = NULL; | |
6e251174 AP |
380 | |
381 | if (adapter->rx_workqueue) { | |
382 | flush_workqueue(adapter->rx_workqueue); | |
383 | destroy_workqueue(adapter->rx_workqueue); | |
384 | adapter->rx_workqueue = NULL; | |
385 | } | |
6b41f941 AK |
386 | } |
387 | ||
5e6e3a92 | 388 | /* |
59a4cc25 | 389 | * This function gets firmware and initializes it. |
5e6e3a92 BZ |
390 | * |
391 | * The main initialization steps followed are - | |
392 | * - Download the correct firmware to card | |
5e6e3a92 BZ |
393 | * - Issue the init commands to firmware |
394 | */ | |
59a4cc25 | 395 | static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) |
5e6e3a92 | 396 | { |
bec568ff | 397 | int ret; |
59a4cc25 AK |
398 | char fmt[64]; |
399 | struct mwifiex_private *priv; | |
400 | struct mwifiex_adapter *adapter = context; | |
5e6e3a92 | 401 | struct mwifiex_fw_image fw; |
c3afd99f AK |
402 | struct semaphore *sem = adapter->card_sem; |
403 | bool init_failed = false; | |
68b76e99 | 404 | struct wireless_dev *wdev; |
5e6e3a92 | 405 | |
59a4cc25 AK |
406 | if (!firmware) { |
407 | dev_err(adapter->dev, | |
408 | "Failed to get firmware %s\n", adapter->fw_name); | |
6b41f941 | 409 | goto err_dnld_fw; |
5e6e3a92 | 410 | } |
59a4cc25 AK |
411 | |
412 | memset(&fw, 0, sizeof(struct mwifiex_fw_image)); | |
413 | adapter->firmware = firmware; | |
5e6e3a92 BZ |
414 | fw.fw_buf = (u8 *) adapter->firmware->data; |
415 | fw.fw_len = adapter->firmware->size; | |
416 | ||
4daffe35 AK |
417 | if (adapter->if_ops.dnld_fw) |
418 | ret = adapter->if_ops.dnld_fw(adapter, &fw); | |
419 | else | |
420 | ret = mwifiex_dnld_fw(adapter, &fw); | |
5e6e3a92 | 421 | if (ret == -1) |
6b41f941 | 422 | goto err_dnld_fw; |
5e6e3a92 BZ |
423 | |
424 | dev_notice(adapter->dev, "WLAN FW is active\n"); | |
425 | ||
388ec385 AK |
426 | if (cal_data_cfg) { |
427 | if ((request_firmware(&adapter->cal_data, cal_data_cfg, | |
428 | adapter->dev)) < 0) | |
429 | dev_err(adapter->dev, | |
430 | "Cal data request_firmware() failed\n"); | |
431 | } | |
432 | ||
232fde06 | 433 | /* enable host interrupt after fw dnld is successful */ |
6b41f941 AK |
434 | if (adapter->if_ops.enable_int) { |
435 | if (adapter->if_ops.enable_int(adapter)) | |
436 | goto err_dnld_fw; | |
437 | } | |
232fde06 | 438 | |
5e6e3a92 BZ |
439 | adapter->init_wait_q_woken = false; |
440 | ret = mwifiex_init_fw(adapter); | |
441 | if (ret == -1) { | |
6b41f941 | 442 | goto err_init_fw; |
5e6e3a92 BZ |
443 | } else if (!ret) { |
444 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
445 | goto done; | |
446 | } | |
447 | /* Wait for mwifiex_init to complete */ | |
448 | wait_event_interruptible(adapter->init_wait_q, | |
449 | adapter->init_wait_q_woken); | |
59a4cc25 | 450 | if (adapter->hw_status != MWIFIEX_HW_STATUS_READY) |
6b41f941 | 451 | goto err_init_fw; |
59a4cc25 | 452 | |
d6bffe8b AP |
453 | priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; |
454 | if (mwifiex_register_cfg80211(adapter)) { | |
59a4cc25 | 455 | dev_err(adapter->dev, "cannot register with cfg80211\n"); |
d1af2943 | 456 | goto err_init_fw; |
59a4cc25 AK |
457 | } |
458 | ||
bf354433 AP |
459 | if (mwifiex_init_channel_scan_gap(adapter)) { |
460 | dev_err(adapter->dev, "could not init channel stats table\n"); | |
461 | goto err_init_fw; | |
462 | } | |
463 | ||
0013c7ce AP |
464 | if (driver_mode) { |
465 | driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK; | |
466 | driver_mode |= MWIFIEX_DRIVER_MODE_STA; | |
467 | } | |
468 | ||
59a4cc25 AK |
469 | rtnl_lock(); |
470 | /* Create station interface by default */ | |
68b76e99 AK |
471 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", |
472 | NL80211_IFTYPE_STATION, NULL, NULL); | |
473 | if (IS_ERR(wdev)) { | |
59a4cc25 | 474 | dev_err(adapter->dev, "cannot create default STA interface\n"); |
bec568ff | 475 | rtnl_unlock(); |
59a4cc25 | 476 | goto err_add_intf; |
5e6e3a92 | 477 | } |
0013c7ce AP |
478 | |
479 | if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) { | |
480 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d", | |
481 | NL80211_IFTYPE_AP, NULL, NULL); | |
482 | if (IS_ERR(wdev)) { | |
483 | dev_err(adapter->dev, "cannot create AP interface\n"); | |
484 | rtnl_unlock(); | |
485 | goto err_add_intf; | |
486 | } | |
487 | } | |
488 | ||
489 | if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) { | |
490 | wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d", | |
491 | NL80211_IFTYPE_P2P_CLIENT, NULL, | |
492 | NULL); | |
493 | if (IS_ERR(wdev)) { | |
494 | dev_err(adapter->dev, | |
495 | "cannot create p2p client interface\n"); | |
496 | rtnl_unlock(); | |
497 | goto err_add_intf; | |
498 | } | |
499 | } | |
59a4cc25 AK |
500 | rtnl_unlock(); |
501 | ||
502 | mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1); | |
503 | dev_notice(adapter->dev, "driver_version = %s\n", fmt); | |
504 | goto done; | |
5e6e3a92 | 505 | |
59a4cc25 | 506 | err_add_intf: |
6b41f941 AK |
507 | wiphy_unregister(adapter->wiphy); |
508 | wiphy_free(adapter->wiphy); | |
59a4cc25 | 509 | err_init_fw: |
232fde06 DD |
510 | if (adapter->if_ops.disable_int) |
511 | adapter->if_ops.disable_int(adapter); | |
6b41f941 | 512 | err_dnld_fw: |
59a4cc25 | 513 | pr_debug("info: %s: unregister device\n", __func__); |
6b41f941 AK |
514 | if (adapter->if_ops.unregister_dev) |
515 | adapter->if_ops.unregister_dev(adapter); | |
516 | ||
7197325b | 517 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
6b41f941 AK |
518 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
519 | adapter->init_wait_q_woken = false; | |
520 | ||
521 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
522 | wait_event_interruptible(adapter->init_wait_q, | |
523 | adapter->init_wait_q_woken); | |
524 | } | |
525 | adapter->surprise_removed = true; | |
526 | mwifiex_terminate_workqueue(adapter); | |
c3afd99f | 527 | init_failed = true; |
5e6e3a92 | 528 | done: |
388ec385 AK |
529 | if (adapter->cal_data) { |
530 | release_firmware(adapter->cal_data); | |
531 | adapter->cal_data = NULL; | |
532 | } | |
c3afd99f AK |
533 | if (adapter->firmware) { |
534 | release_firmware(adapter->firmware); | |
535 | adapter->firmware = NULL; | |
536 | } | |
c3afd99f AK |
537 | if (init_failed) |
538 | mwifiex_free_adapter(adapter); | |
539 | up(sem); | |
59a4cc25 AK |
540 | return; |
541 | } | |
542 | ||
543 | /* | |
544 | * This function initializes the hardware and gets firmware. | |
545 | */ | |
546 | static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter) | |
547 | { | |
548 | int ret; | |
549 | ||
59a4cc25 AK |
550 | ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name, |
551 | adapter->dev, GFP_KERNEL, adapter, | |
552 | mwifiex_fw_dpc); | |
553 | if (ret < 0) | |
554 | dev_err(adapter->dev, | |
555 | "request_firmware_nowait() returned error %d\n", ret); | |
5e6e3a92 BZ |
556 | return ret; |
557 | } | |
558 | ||
5e6e3a92 BZ |
559 | /* |
560 | * CFG802.11 network device handler for open. | |
561 | * | |
562 | * Starts the data queue. | |
563 | */ | |
564 | static int | |
565 | mwifiex_open(struct net_device *dev) | |
566 | { | |
ea2325b8 JB |
567 | netif_carrier_off(dev); |
568 | ||
5e6e3a92 BZ |
569 | return 0; |
570 | } | |
571 | ||
572 | /* | |
573 | * CFG802.11 network device handler for close. | |
574 | */ | |
575 | static int | |
576 | mwifiex_close(struct net_device *dev) | |
577 | { | |
f162cac8 AK |
578 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
579 | ||
580 | if (priv->scan_request) { | |
581 | dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n"); | |
582 | cfg80211_scan_done(priv->scan_request, 1); | |
583 | priv->scan_request = NULL; | |
75ab753d | 584 | priv->scan_aborting = true; |
f162cac8 AK |
585 | } |
586 | ||
5e6e3a92 BZ |
587 | return 0; |
588 | } | |
589 | ||
e39faa73 SP |
590 | /* |
591 | * Add buffer into wmm tx queue and queue work to transmit it. | |
592 | */ | |
593 | int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) | |
594 | { | |
47411a06 AP |
595 | struct netdev_queue *txq; |
596 | int index = mwifiex_1d_to_wmm_queue[skb->priority]; | |
597 | ||
598 | if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) { | |
599 | txq = netdev_get_tx_queue(priv->netdev, index); | |
600 | if (!netif_tx_queue_stopped(txq)) { | |
601 | netif_tx_stop_queue(txq); | |
602 | dev_dbg(priv->adapter->dev, "stop queue: %d\n", index); | |
603 | } | |
604 | } | |
605 | ||
e39faa73 | 606 | atomic_inc(&priv->adapter->tx_pending); |
47411a06 | 607 | mwifiex_wmm_add_buf_txqueue(priv, skb); |
e39faa73 | 608 | |
e39faa73 SP |
609 | queue_work(priv->adapter->workqueue, &priv->adapter->main_work); |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
18ca4382 | 614 | struct sk_buff * |
808bbebc | 615 | mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv, |
18ca4382 | 616 | struct sk_buff *skb, u8 flag, u64 *cookie) |
808bbebc AK |
617 | { |
618 | struct sk_buff *orig_skb = skb; | |
619 | struct mwifiex_txinfo *tx_info, *orig_tx_info; | |
620 | ||
621 | skb = skb_clone(skb, GFP_ATOMIC); | |
622 | if (skb) { | |
623 | unsigned long flags; | |
624 | int id; | |
625 | ||
626 | spin_lock_irqsave(&priv->ack_status_lock, flags); | |
627 | id = idr_alloc(&priv->ack_status_frames, orig_skb, | |
628 | 1, 0xff, GFP_ATOMIC); | |
629 | spin_unlock_irqrestore(&priv->ack_status_lock, flags); | |
630 | ||
631 | if (id >= 0) { | |
632 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
633 | tx_info->ack_frame_id = id; | |
634 | tx_info->flags |= flag; | |
635 | orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb); | |
636 | orig_tx_info->ack_frame_id = id; | |
637 | orig_tx_info->flags |= flag; | |
18ca4382 AK |
638 | |
639 | if (flag == MWIFIEX_BUF_FLAG_ACTION_TX_STATUS && cookie) | |
640 | orig_tx_info->cookie = *cookie; | |
641 | ||
808bbebc AK |
642 | } else if (skb_shared(skb)) { |
643 | kfree_skb(orig_skb); | |
644 | } else { | |
645 | kfree_skb(skb); | |
646 | skb = orig_skb; | |
647 | } | |
648 | } else { | |
649 | /* couldn't clone -- lose tx status ... */ | |
650 | skb = orig_skb; | |
651 | } | |
652 | ||
653 | return skb; | |
654 | } | |
655 | ||
5e6e3a92 BZ |
656 | /* |
657 | * CFG802.11 network device handler for data transmission. | |
658 | */ | |
659 | static int | |
660 | mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
661 | { | |
662 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
270e58e8 | 663 | struct sk_buff *new_skb; |
5e6e3a92 | 664 | struct mwifiex_txinfo *tx_info; |
808bbebc | 665 | bool multicast; |
5e6e3a92 | 666 | |
9da9a3b2 | 667 | dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", |
f57c1edc | 668 | jiffies, priv->bss_type, priv->bss_num); |
5e6e3a92 BZ |
669 | |
670 | if (priv->adapter->surprise_removed) { | |
b53575ec | 671 | kfree_skb(skb); |
5e6e3a92 BZ |
672 | priv->stats.tx_dropped++; |
673 | return 0; | |
674 | } | |
675 | if (!skb->len || (skb->len > ETH_FRAME_LEN)) { | |
676 | dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len); | |
b53575ec | 677 | kfree_skb(skb); |
5e6e3a92 BZ |
678 | priv->stats.tx_dropped++; |
679 | return 0; | |
680 | } | |
681 | if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) { | |
682 | dev_dbg(priv->adapter->dev, | |
683 | "data: Tx: insufficient skb headroom %d\n", | |
f57c1edc | 684 | skb_headroom(skb)); |
5e6e3a92 BZ |
685 | /* Insufficient skb headroom - allocate a new skb */ |
686 | new_skb = | |
687 | skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN); | |
688 | if (unlikely(!new_skb)) { | |
689 | dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n"); | |
b53575ec | 690 | kfree_skb(skb); |
5e6e3a92 BZ |
691 | priv->stats.tx_dropped++; |
692 | return 0; | |
693 | } | |
694 | kfree_skb(skb); | |
695 | skb = new_skb; | |
696 | dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n", | |
f57c1edc | 697 | skb_headroom(skb)); |
5e6e3a92 BZ |
698 | } |
699 | ||
700 | tx_info = MWIFIEX_SKB_TXCB(skb); | |
d76744a9 | 701 | memset(tx_info, 0, sizeof(*tx_info)); |
9da9a3b2 YAP |
702 | tx_info->bss_num = priv->bss_num; |
703 | tx_info->bss_type = priv->bss_type; | |
a1ed4849 | 704 | tx_info->pkt_len = skb->len; |
47411a06 | 705 | |
808bbebc AK |
706 | multicast = is_multicast_ether_addr(skb->data); |
707 | ||
708 | if (unlikely(!multicast && skb->sk && | |
709 | skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS && | |
710 | priv->adapter->fw_api_ver == MWIFIEX_FW_V15)) | |
711 | skb = mwifiex_clone_skb_for_tx_status(priv, | |
712 | skb, | |
18ca4382 | 713 | MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS, NULL); |
808bbebc | 714 | |
47411a06 AP |
715 | /* Record the current time the packet was queued; used to |
716 | * determine the amount of time the packet was queued in | |
717 | * the driver before it was sent to the firmware. | |
718 | * The delay is then sent along with the packet to the | |
719 | * firmware for aggregate delay calculation for stats and | |
720 | * MSDU lifetime expiry. | |
721 | */ | |
c64800e7 | 722 | __net_timestamp(skb); |
5e6e3a92 | 723 | |
9927baa3 AP |
724 | if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && |
725 | priv->bss_type == MWIFIEX_BSS_TYPE_STA && | |
726 | !ether_addr_equal_unaligned(priv->cfg_bssid, skb->data)) { | |
727 | if (priv->adapter->auto_tdls && priv->check_tdls_tx) | |
728 | mwifiex_tdls_check_tx(priv, skb); | |
729 | } | |
730 | ||
e39faa73 | 731 | mwifiex_queue_tx_pkt(priv, skb); |
5e6e3a92 BZ |
732 | |
733 | return 0; | |
734 | } | |
735 | ||
736 | /* | |
737 | * CFG802.11 network device handler for setting MAC address. | |
738 | */ | |
739 | static int | |
740 | mwifiex_set_mac_address(struct net_device *dev, void *addr) | |
741 | { | |
742 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
a5ffddb7 | 743 | struct sockaddr *hw_addr = addr; |
270e58e8 | 744 | int ret; |
5e6e3a92 BZ |
745 | |
746 | memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN); | |
747 | ||
600f5d90 | 748 | /* Send request to firmware */ |
fa0ecbb9 BZ |
749 | ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS, |
750 | HostCmd_ACT_GEN_SET, 0, NULL, true); | |
600f5d90 AK |
751 | |
752 | if (!ret) | |
753 | memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN); | |
754 | else | |
f57c1edc YAP |
755 | dev_err(priv->adapter->dev, |
756 | "set mac address failed: ret=%d\n", ret); | |
600f5d90 | 757 | |
5e6e3a92 BZ |
758 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
759 | ||
600f5d90 | 760 | return ret; |
5e6e3a92 BZ |
761 | } |
762 | ||
763 | /* | |
764 | * CFG802.11 network device handler for setting multicast list. | |
765 | */ | |
766 | static void mwifiex_set_multicast_list(struct net_device *dev) | |
767 | { | |
768 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
600f5d90 AK |
769 | struct mwifiex_multicast_list mcast_list; |
770 | ||
771 | if (dev->flags & IFF_PROMISC) { | |
772 | mcast_list.mode = MWIFIEX_PROMISC_MODE; | |
773 | } else if (dev->flags & IFF_ALLMULTI || | |
774 | netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) { | |
775 | mcast_list.mode = MWIFIEX_ALL_MULTI_MODE; | |
776 | } else { | |
777 | mcast_list.mode = MWIFIEX_MULTICAST_MODE; | |
6390d885 DD |
778 | mcast_list.num_multicast_addr = |
779 | mwifiex_copy_mcast_addr(&mcast_list, dev); | |
600f5d90 AK |
780 | } |
781 | mwifiex_request_set_multicast_list(priv, &mcast_list); | |
5e6e3a92 BZ |
782 | } |
783 | ||
784 | /* | |
785 | * CFG802.11 network device handler for transmission timeout. | |
786 | */ | |
787 | static void | |
788 | mwifiex_tx_timeout(struct net_device *dev) | |
789 | { | |
790 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
791 | ||
5e6e3a92 | 792 | priv->num_tx_timeout++; |
8908c7d5 AN |
793 | priv->tx_timeout_cnt++; |
794 | dev_err(priv->adapter->dev, | |
795 | "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n", | |
796 | jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num); | |
797 | mwifiex_set_trans_start(dev); | |
798 | ||
799 | if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD && | |
800 | priv->adapter->if_ops.card_reset) { | |
801 | dev_err(priv->adapter->dev, | |
802 | "tx_timeout_cnt exceeds threshold. Triggering card reset!\n"); | |
803 | priv->adapter->if_ops.card_reset(priv->adapter); | |
804 | } | |
5e6e3a92 BZ |
805 | } |
806 | ||
11cd07a9 XH |
807 | void mwifiex_dump_drv_info(struct mwifiex_adapter *adapter) |
808 | { | |
809 | void *p; | |
810 | char drv_version[64]; | |
811 | struct usb_card_rec *cardp; | |
812 | struct sdio_mmc_card *sdio_card; | |
813 | struct mwifiex_private *priv; | |
814 | int i, idx; | |
815 | struct netdev_queue *txq; | |
816 | struct mwifiex_debug_info *debug_info; | |
817 | ||
818 | if (adapter->drv_info_dump) { | |
819 | vfree(adapter->drv_info_dump); | |
820 | adapter->drv_info_size = 0; | |
821 | } | |
822 | ||
823 | dev_info(adapter->dev, "=== DRIVER INFO DUMP START===\n"); | |
824 | ||
825 | adapter->drv_info_dump = vzalloc(MWIFIEX_DRV_INFO_SIZE_MAX); | |
826 | ||
827 | if (!adapter->drv_info_dump) | |
828 | return; | |
829 | ||
830 | p = (char *)(adapter->drv_info_dump); | |
831 | p += sprintf(p, "driver_name = " "\"mwifiex\"\n"); | |
832 | ||
833 | mwifiex_drv_get_driver_version(adapter, drv_version, | |
834 | sizeof(drv_version) - 1); | |
835 | p += sprintf(p, "driver_version = %s\n", drv_version); | |
836 | ||
837 | if (adapter->iface_type == MWIFIEX_USB) { | |
838 | cardp = (struct usb_card_rec *)adapter->card; | |
839 | p += sprintf(p, "tx_cmd_urb_pending = %d\n", | |
840 | atomic_read(&cardp->tx_cmd_urb_pending)); | |
841 | p += sprintf(p, "tx_data_urb_pending = %d\n", | |
842 | atomic_read(&cardp->tx_data_urb_pending)); | |
843 | p += sprintf(p, "rx_cmd_urb_pending = %d\n", | |
844 | atomic_read(&cardp->rx_cmd_urb_pending)); | |
845 | p += sprintf(p, "rx_data_urb_pending = %d\n", | |
846 | atomic_read(&cardp->rx_data_urb_pending)); | |
847 | } | |
848 | ||
849 | p += sprintf(p, "tx_pending = %d\n", | |
850 | atomic_read(&adapter->tx_pending)); | |
851 | p += sprintf(p, "rx_pending = %d\n", | |
852 | atomic_read(&adapter->rx_pending)); | |
853 | ||
854 | if (adapter->iface_type == MWIFIEX_SDIO) { | |
855 | sdio_card = (struct sdio_mmc_card *)adapter->card; | |
856 | p += sprintf(p, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n", | |
857 | sdio_card->mp_rd_bitmap, sdio_card->curr_rd_port); | |
858 | p += sprintf(p, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n", | |
859 | sdio_card->mp_wr_bitmap, sdio_card->curr_wr_port); | |
860 | } | |
861 | ||
862 | for (i = 0; i < adapter->priv_num; i++) { | |
863 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
864 | continue; | |
865 | priv = adapter->priv[i]; | |
866 | p += sprintf(p, "\n[interface : \"%s\"]\n", | |
867 | priv->netdev->name); | |
868 | p += sprintf(p, "wmm_tx_pending[0] = %d\n", | |
869 | atomic_read(&priv->wmm_tx_pending[0])); | |
870 | p += sprintf(p, "wmm_tx_pending[1] = %d\n", | |
871 | atomic_read(&priv->wmm_tx_pending[1])); | |
872 | p += sprintf(p, "wmm_tx_pending[2] = %d\n", | |
873 | atomic_read(&priv->wmm_tx_pending[2])); | |
874 | p += sprintf(p, "wmm_tx_pending[3] = %d\n", | |
875 | atomic_read(&priv->wmm_tx_pending[3])); | |
876 | p += sprintf(p, "media_state=\"%s\"\n", !priv->media_connected ? | |
877 | "Disconnected" : "Connected"); | |
878 | p += sprintf(p, "carrier %s\n", (netif_carrier_ok(priv->netdev) | |
879 | ? "on" : "off")); | |
880 | for (idx = 0; idx < priv->netdev->num_tx_queues; idx++) { | |
881 | txq = netdev_get_tx_queue(priv->netdev, idx); | |
882 | p += sprintf(p, "tx queue %d:%s ", idx, | |
883 | netif_tx_queue_stopped(txq) ? | |
884 | "stopped" : "started"); | |
885 | } | |
886 | p += sprintf(p, "\n%s: num_tx_timeout = %d\n", | |
887 | priv->netdev->name, priv->num_tx_timeout); | |
888 | } | |
889 | ||
809c6ea8 XH |
890 | if (adapter->iface_type == MWIFIEX_SDIO) { |
891 | p += sprintf(p, "\n=== SDIO register DUMP===\n"); | |
892 | if (adapter->if_ops.reg_dump) | |
893 | p += adapter->if_ops.reg_dump(adapter, p); | |
894 | } | |
895 | ||
11cd07a9 XH |
896 | p += sprintf(p, "\n=== MORE DEBUG INFORMATION\n"); |
897 | debug_info = kzalloc(sizeof(*debug_info), GFP_KERNEL); | |
898 | if (debug_info) { | |
899 | for (i = 0; i < adapter->priv_num; i++) { | |
900 | if (!adapter->priv[i] || !adapter->priv[i]->netdev) | |
901 | continue; | |
902 | priv = adapter->priv[i]; | |
903 | mwifiex_get_debug_info(priv, debug_info); | |
904 | p += mwifiex_debug_info_to_buffer(priv, p, debug_info); | |
905 | break; | |
906 | } | |
907 | kfree(debug_info); | |
908 | } | |
909 | ||
910 | adapter->drv_info_size = p - adapter->drv_info_dump; | |
911 | dev_info(adapter->dev, "=== DRIVER INFO DUMP END===\n"); | |
912 | } | |
913 | EXPORT_SYMBOL_GPL(mwifiex_dump_drv_info); | |
914 | ||
5e6e3a92 BZ |
915 | /* |
916 | * CFG802.11 network device handler for statistics retrieval. | |
917 | */ | |
918 | static struct net_device_stats *mwifiex_get_stats(struct net_device *dev) | |
919 | { | |
920 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); | |
921 | ||
922 | return &priv->stats; | |
923 | } | |
924 | ||
47411a06 | 925 | static u16 |
f663dd9a | 926 | mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 927 | void *accel_priv, select_queue_fallback_t fallback) |
47411a06 | 928 | { |
fa9ffc74 | 929 | skb->priority = cfg80211_classify8021d(skb, NULL); |
47411a06 AP |
930 | return mwifiex_1d_to_wmm_queue[skb->priority]; |
931 | } | |
932 | ||
5e6e3a92 BZ |
933 | /* Network device handlers */ |
934 | static const struct net_device_ops mwifiex_netdev_ops = { | |
935 | .ndo_open = mwifiex_open, | |
936 | .ndo_stop = mwifiex_close, | |
937 | .ndo_start_xmit = mwifiex_hard_start_xmit, | |
938 | .ndo_set_mac_address = mwifiex_set_mac_address, | |
939 | .ndo_tx_timeout = mwifiex_tx_timeout, | |
940 | .ndo_get_stats = mwifiex_get_stats, | |
afc4b13d | 941 | .ndo_set_rx_mode = mwifiex_set_multicast_list, |
47411a06 | 942 | .ndo_select_queue = mwifiex_netdev_select_wmm_queue, |
5e6e3a92 BZ |
943 | }; |
944 | ||
945 | /* | |
946 | * This function initializes the private structure parameters. | |
947 | * | |
948 | * The following wait queues are initialized - | |
949 | * - IOCTL wait queue | |
950 | * - Command wait queue | |
951 | * - Statistics wait queue | |
952 | * | |
953 | * ...and the following default parameters are set - | |
954 | * - Current key index : Set to 0 | |
955 | * - Rate index : Set to auto | |
956 | * - Media connected : Set to disconnected | |
957 | * - Adhoc link sensed : Set to false | |
958 | * - Nick name : Set to null | |
959 | * - Number of Tx timeout : Set to 0 | |
960 | * - Device address : Set to current address | |
cbf6e055 | 961 | * - Rx histogram statistc : Set to 0 |
5e6e3a92 BZ |
962 | * |
963 | * In addition, the CFG80211 work queue is also created. | |
964 | */ | |
93a1df48 | 965 | void mwifiex_init_priv_params(struct mwifiex_private *priv, |
047eaaf6 | 966 | struct net_device *dev) |
5e6e3a92 BZ |
967 | { |
968 | dev->netdev_ops = &mwifiex_netdev_ops; | |
f16fdc9d | 969 | dev->destructor = free_netdev; |
5e6e3a92 | 970 | /* Initialize private structure */ |
5e6e3a92 BZ |
971 | priv->current_key_index = 0; |
972 | priv->media_connected = false; | |
ede98bfa AP |
973 | memset(priv->mgmt_ie, 0, |
974 | sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); | |
f31acabe AP |
975 | priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; |
976 | priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; | |
977 | priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; | |
2ade5667 | 978 | priv->gen_idx = MWIFIEX_AUTO_IDX_MASK; |
5e6e3a92 | 979 | priv->num_tx_timeout = 0; |
8d05eb22 | 980 | ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr); |
5e6e3a92 | 981 | memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); |
cbf6e055 XH |
982 | |
983 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || | |
984 | GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { | |
985 | priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL); | |
986 | if (priv->hist_data) | |
987 | mwifiex_hist_data_reset(priv); | |
988 | } | |
5e6e3a92 BZ |
989 | } |
990 | ||
5e6e3a92 BZ |
991 | /* |
992 | * This function check if command is pending. | |
993 | */ | |
994 | int is_command_pending(struct mwifiex_adapter *adapter) | |
995 | { | |
996 | unsigned long flags; | |
997 | int is_cmd_pend_q_empty; | |
998 | ||
999 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
1000 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
1001 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
1002 | ||
1003 | return !is_cmd_pend_q_empty; | |
1004 | } | |
1005 | ||
6e251174 AP |
1006 | /* |
1007 | * This is the RX work queue function. | |
1008 | * | |
1009 | * It handles the RX operations. | |
1010 | */ | |
1011 | static void mwifiex_rx_work_queue(struct work_struct *work) | |
1012 | { | |
1013 | struct mwifiex_adapter *adapter = | |
1014 | container_of(work, struct mwifiex_adapter, rx_work); | |
1015 | ||
1016 | if (adapter->surprise_removed) | |
1017 | return; | |
1018 | mwifiex_process_rx(adapter); | |
1019 | } | |
1020 | ||
5e6e3a92 BZ |
1021 | /* |
1022 | * This is the main work queue function. | |
1023 | * | |
1024 | * It handles the main process, which in turn handles the complete | |
1025 | * driver operations. | |
1026 | */ | |
1027 | static void mwifiex_main_work_queue(struct work_struct *work) | |
1028 | { | |
1029 | struct mwifiex_adapter *adapter = | |
1030 | container_of(work, struct mwifiex_adapter, main_work); | |
1031 | ||
1032 | if (adapter->surprise_removed) | |
1033 | return; | |
1034 | mwifiex_main_process(adapter); | |
1035 | } | |
1036 | ||
5e6e3a92 BZ |
1037 | /* |
1038 | * This function adds the card. | |
1039 | * | |
1040 | * This function follows the following major steps to set up the device - | |
1041 | * - Initialize software. This includes probing the card, registering | |
1042 | * the interface operations table, and allocating/initializing the | |
1043 | * adapter structure | |
1044 | * - Set up the netlink socket | |
1045 | * - Create and start the main work queue | |
1046 | * - Register the device | |
1047 | * - Initialize firmware and hardware | |
1048 | * - Add logical interfaces | |
1049 | */ | |
1050 | int | |
1051 | mwifiex_add_card(void *card, struct semaphore *sem, | |
d930faee | 1052 | struct mwifiex_if_ops *if_ops, u8 iface_type) |
5e6e3a92 | 1053 | { |
2be7859f | 1054 | struct mwifiex_adapter *adapter; |
5e6e3a92 BZ |
1055 | |
1056 | if (down_interruptible(sem)) | |
1057 | goto exit_sem_err; | |
1058 | ||
93a1df48 | 1059 | if (mwifiex_register(card, if_ops, (void **)&adapter)) { |
5e6e3a92 BZ |
1060 | pr_err("%s: software init failed\n", __func__); |
1061 | goto err_init_sw; | |
1062 | } | |
1063 | ||
d930faee | 1064 | adapter->iface_type = iface_type; |
6b41f941 | 1065 | adapter->card_sem = sem; |
d930faee | 1066 | |
5e6e3a92 | 1067 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; |
5e6e3a92 BZ |
1068 | adapter->surprise_removed = false; |
1069 | init_waitqueue_head(&adapter->init_wait_q); | |
1070 | adapter->is_suspended = false; | |
1071 | adapter->hs_activated = false; | |
1072 | init_waitqueue_head(&adapter->hs_activate_wait_q); | |
600f5d90 | 1073 | init_waitqueue_head(&adapter->cmd_wait_q.wait); |
600f5d90 | 1074 | adapter->cmd_wait_q.status = 0; |
efaaa8b8 | 1075 | adapter->scan_wait_q_woken = false; |
5e6e3a92 | 1076 | |
ec4a16b4 | 1077 | if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) { |
6e251174 AP |
1078 | adapter->rx_work_enabled = true; |
1079 | pr_notice("rx work enabled, cpus %d\n", num_possible_cpus()); | |
1080 | } | |
1081 | ||
448a71cc AK |
1082 | adapter->workqueue = |
1083 | alloc_workqueue("MWIFIEX_WORK_QUEUE", | |
1084 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1); | |
5e6e3a92 BZ |
1085 | if (!adapter->workqueue) |
1086 | goto err_kmalloc; | |
1087 | ||
1088 | INIT_WORK(&adapter->main_work, mwifiex_main_work_queue); | |
6e251174 AP |
1089 | |
1090 | if (adapter->rx_work_enabled) { | |
1091 | adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE", | |
1092 | WQ_HIGHPRI | | |
1093 | WQ_MEM_RECLAIM | | |
1094 | WQ_UNBOUND, 1); | |
1095 | if (!adapter->rx_workqueue) | |
1096 | goto err_kmalloc; | |
1097 | ||
1098 | INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue); | |
1099 | } | |
1100 | ||
92c2538f AK |
1101 | if (adapter->if_ops.iface_work) |
1102 | INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work); | |
5e6e3a92 BZ |
1103 | |
1104 | /* Register the device. Fill up the private data structure with relevant | |
232fde06 | 1105 | information from the card. */ |
5e6e3a92 BZ |
1106 | if (adapter->if_ops.register_dev(adapter)) { |
1107 | pr_err("%s: failed to register mwifiex device\n", __func__); | |
1108 | goto err_registerdev; | |
1109 | } | |
1110 | ||
5e6e3a92 BZ |
1111 | if (mwifiex_init_hw_fw(adapter)) { |
1112 | pr_err("%s: firmware init failed\n", __func__); | |
1113 | goto err_init_fw; | |
1114 | } | |
2be7859f | 1115 | |
5e6e3a92 BZ |
1116 | return 0; |
1117 | ||
5e6e3a92 | 1118 | err_init_fw: |
5e6e3a92 | 1119 | pr_debug("info: %s: unregister device\n", __func__); |
4daffe35 AK |
1120 | if (adapter->if_ops.unregister_dev) |
1121 | adapter->if_ops.unregister_dev(adapter); | |
7197325b | 1122 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) { |
5e6e3a92 BZ |
1123 | pr_debug("info: %s: shutdown mwifiex\n", __func__); |
1124 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
1125 | |
1126 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1127 | wait_event_interruptible(adapter->init_wait_q, |
1128 | adapter->init_wait_q_woken); | |
1129 | } | |
6b41f941 AK |
1130 | err_registerdev: |
1131 | adapter->surprise_removed = true; | |
1132 | mwifiex_terminate_workqueue(adapter); | |
1133 | err_kmalloc: | |
5e6e3a92 BZ |
1134 | mwifiex_free_adapter(adapter); |
1135 | ||
1136 | err_init_sw: | |
1137 | up(sem); | |
1138 | ||
1139 | exit_sem_err: | |
1140 | return -1; | |
1141 | } | |
1142 | EXPORT_SYMBOL_GPL(mwifiex_add_card); | |
1143 | ||
1144 | /* | |
1145 | * This function removes the card. | |
1146 | * | |
1147 | * This function follows the following major steps to remove the device - | |
1148 | * - Stop data traffic | |
1149 | * - Shutdown firmware | |
1150 | * - Remove the logical interfaces | |
1151 | * - Terminate the work queue | |
1152 | * - Unregister the device | |
1153 | * - Free the adapter structure | |
1154 | */ | |
1155 | int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) | |
1156 | { | |
1157 | struct mwifiex_private *priv = NULL; | |
5e6e3a92 BZ |
1158 | int i; |
1159 | ||
1160 | if (down_interruptible(sem)) | |
1161 | goto exit_sem_err; | |
1162 | ||
1163 | if (!adapter) | |
1164 | goto exit_remove; | |
1165 | ||
232fde06 DD |
1166 | /* We can no longer handle interrupts once we start doing the teardown |
1167 | * below. */ | |
1168 | if (adapter->if_ops.disable_int) | |
1169 | adapter->if_ops.disable_int(adapter); | |
1170 | ||
5e6e3a92 BZ |
1171 | adapter->surprise_removed = true; |
1172 | ||
9d2e85e0 MY |
1173 | mwifiex_terminate_workqueue(adapter); |
1174 | ||
5e6e3a92 BZ |
1175 | /* Stop data */ |
1176 | for (i = 0; i < adapter->priv_num; i++) { | |
1177 | priv = adapter->priv[i]; | |
93a1df48 | 1178 | if (priv && priv->netdev) { |
47411a06 | 1179 | mwifiex_stop_net_dev_queue(priv->netdev, adapter); |
5e6e3a92 BZ |
1180 | if (netif_carrier_ok(priv->netdev)) |
1181 | netif_carrier_off(priv->netdev); | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n"); | |
1186 | adapter->init_wait_q_woken = false; | |
636c4598 YAP |
1187 | |
1188 | if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS) | |
5e6e3a92 BZ |
1189 | wait_event_interruptible(adapter->init_wait_q, |
1190 | adapter->init_wait_q_woken); | |
1191 | dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n"); | |
1192 | if (atomic_read(&adapter->rx_pending) || | |
1193 | atomic_read(&adapter->tx_pending) || | |
600f5d90 | 1194 | atomic_read(&adapter->cmd_pending)) { |
5e6e3a92 | 1195 | dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, " |
600f5d90 | 1196 | "cmd_pending=%d\n", |
5e6e3a92 BZ |
1197 | atomic_read(&adapter->rx_pending), |
1198 | atomic_read(&adapter->tx_pending), | |
600f5d90 | 1199 | atomic_read(&adapter->cmd_pending)); |
5e6e3a92 BZ |
1200 | } |
1201 | ||
93a1df48 YAP |
1202 | for (i = 0; i < adapter->priv_num; i++) { |
1203 | priv = adapter->priv[i]; | |
1204 | ||
1205 | if (!priv) | |
1206 | continue; | |
1207 | ||
1208 | rtnl_lock(); | |
4facc34a AP |
1209 | if (priv->netdev && |
1210 | priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) | |
1211 | mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev); | |
93a1df48 YAP |
1212 | rtnl_unlock(); |
1213 | } | |
1214 | ||
c2868ade AK |
1215 | wiphy_unregister(adapter->wiphy); |
1216 | wiphy_free(adapter->wiphy); | |
64b05e2f | 1217 | |
5e6e3a92 BZ |
1218 | /* Unregister device */ |
1219 | dev_dbg(adapter->dev, "info: unregister device\n"); | |
4daffe35 AK |
1220 | if (adapter->if_ops.unregister_dev) |
1221 | adapter->if_ops.unregister_dev(adapter); | |
5e6e3a92 BZ |
1222 | /* Free adapter structure */ |
1223 | dev_dbg(adapter->dev, "info: free adapter\n"); | |
1224 | mwifiex_free_adapter(adapter); | |
1225 | ||
1226 | exit_remove: | |
1227 | up(sem); | |
1228 | exit_sem_err: | |
1229 | return 0; | |
1230 | } | |
1231 | EXPORT_SYMBOL_GPL(mwifiex_remove_card); | |
1232 | ||
1233 | /* | |
1234 | * This function initializes the module. | |
1235 | * | |
1236 | * The debug FS is also initialized if configured. | |
1237 | */ | |
1238 | static int | |
1239 | mwifiex_init_module(void) | |
1240 | { | |
1241 | #ifdef CONFIG_DEBUG_FS | |
1242 | mwifiex_debugfs_init(); | |
1243 | #endif | |
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | /* | |
1248 | * This function cleans up the module. | |
1249 | * | |
1250 | * The debug FS is removed if available. | |
1251 | */ | |
1252 | static void | |
1253 | mwifiex_cleanup_module(void) | |
1254 | { | |
1255 | #ifdef CONFIG_DEBUG_FS | |
1256 | mwifiex_debugfs_remove(); | |
1257 | #endif | |
1258 | } | |
1259 | ||
1260 | module_init(mwifiex_init_module); | |
1261 | module_exit(mwifiex_cleanup_module); | |
1262 | ||
1263 | MODULE_AUTHOR("Marvell International Ltd."); | |
1264 | MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION); | |
1265 | MODULE_VERSION(VERSION); | |
1266 | MODULE_LICENSE("GPL v2"); |