diff options
Diffstat (limited to 'drivers/net/wireless/mwifiex/cmdevt.c')
-rw-r--r-- | drivers/net/wireless/mwifiex/cmdevt.c | 1459 |
1 files changed, 1459 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c new file mode 100644 index 00000000000..a9aeb31af45 --- /dev/null +++ b/drivers/net/wireless/mwifiex/cmdevt.c | |||
@@ -0,0 +1,1459 @@ | |||
1 | /* | ||
2 | * Marvell Wireless LAN device driver: commands and events | ||
3 | * | ||
4 | * Copyright (C) 2011, Marvell International Ltd. | ||
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 "decl.h" | ||
21 | #include "ioctl.h" | ||
22 | #include "util.h" | ||
23 | #include "fw.h" | ||
24 | #include "main.h" | ||
25 | #include "wmm.h" | ||
26 | #include "11n.h" | ||
27 | |||
28 | /* | ||
29 | * This function initializes a command node. | ||
30 | * | ||
31 | * The actual allocation of the node is not done by this function. It only | ||
32 | * initiates a node by filling it with default parameters. Similarly, | ||
33 | * allocation of the different buffers used (IOCTL buffer, data buffer) are | ||
34 | * not done by this function either. | ||
35 | */ | ||
36 | static void | ||
37 | mwifiex_init_cmd_node(struct mwifiex_private *priv, | ||
38 | struct cmd_ctrl_node *cmd_node, | ||
39 | u32 cmd_oid, void *wait_queue, void *data_buf) | ||
40 | { | ||
41 | cmd_node->priv = priv; | ||
42 | cmd_node->cmd_oid = cmd_oid; | ||
43 | cmd_node->wq_buf = wait_queue; | ||
44 | cmd_node->data_buf = data_buf; | ||
45 | cmd_node->cmd_skb = cmd_node->skb; | ||
46 | } | ||
47 | |||
48 | /* | ||
49 | * This function returns a command node from the free queue depending upon | ||
50 | * availability. | ||
51 | */ | ||
52 | static struct cmd_ctrl_node * | ||
53 | mwifiex_get_cmd_node(struct mwifiex_adapter *adapter) | ||
54 | { | ||
55 | struct cmd_ctrl_node *cmd_node; | ||
56 | unsigned long flags; | ||
57 | |||
58 | spin_lock_irqsave(&adapter->cmd_free_q_lock, flags); | ||
59 | if (list_empty(&adapter->cmd_free_q)) { | ||
60 | dev_err(adapter->dev, "GET_CMD_NODE: cmd node not available\n"); | ||
61 | spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags); | ||
62 | return NULL; | ||
63 | } | ||
64 | cmd_node = list_first_entry(&adapter->cmd_free_q, | ||
65 | struct cmd_ctrl_node, list); | ||
66 | list_del(&cmd_node->list); | ||
67 | spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags); | ||
68 | |||
69 | return cmd_node; | ||
70 | } | ||
71 | |||
72 | /* | ||
73 | * This function cleans up a command node. | ||
74 | * | ||
75 | * The function resets the fields including the buffer pointers. | ||
76 | * This function does not try to free the buffers. They must be | ||
77 | * freed before calling this function. | ||
78 | * | ||
79 | * This function will however call the receive completion callback | ||
80 | * in case a response buffer is still available before resetting | ||
81 | * the pointer. | ||
82 | */ | ||
83 | static void | ||
84 | mwifiex_clean_cmd_node(struct mwifiex_adapter *adapter, | ||
85 | struct cmd_ctrl_node *cmd_node) | ||
86 | { | ||
87 | cmd_node->cmd_oid = 0; | ||
88 | cmd_node->cmd_flag = 0; | ||
89 | cmd_node->wq_buf = NULL; | ||
90 | cmd_node->data_buf = NULL; | ||
91 | |||
92 | if (cmd_node->resp_skb) { | ||
93 | mwifiex_recv_complete(adapter, cmd_node->resp_skb, 0); | ||
94 | cmd_node->resp_skb = NULL; | ||
95 | } | ||
96 | |||
97 | return; | ||
98 | } | ||
99 | |||
100 | /* | ||
101 | * This function returns a command node from the pending queue which | ||
102 | * matches the given IOCTL request. | ||
103 | */ | ||
104 | static struct cmd_ctrl_node * | ||
105 | mwifiex_get_pending_ioctl_cmd(struct mwifiex_adapter *adapter, | ||
106 | struct mwifiex_wait_queue *wait_queue) | ||
107 | { | ||
108 | unsigned long flags; | ||
109 | struct cmd_ctrl_node *cmd_node; | ||
110 | |||
111 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | ||
112 | list_for_each_entry(cmd_node, &adapter->cmd_pending_q, list) { | ||
113 | if (cmd_node->wq_buf == wait_queue) { | ||
114 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, | ||
115 | flags); | ||
116 | return cmd_node; | ||
117 | } | ||
118 | } | ||
119 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | ||
120 | |||
121 | return NULL; | ||
122 | } | ||
123 | |||
124 | /* | ||
125 | * This function sends a host command to the firmware. | ||
126 | * | ||
127 | * The function copies the host command into the driver command | ||
128 | * buffer, which will be transferred to the firmware later by the | ||
129 | * main thread. | ||
130 | */ | ||
131 | static int mwifiex_cmd_host_cmd(struct mwifiex_private *priv, | ||
132 | struct host_cmd_ds_command *cmd, void *data_buf) | ||
133 | { | ||
134 | struct mwifiex_ds_misc_cmd *pcmd_ptr = | ||
135 | (struct mwifiex_ds_misc_cmd *) data_buf; | ||
136 | |||
137 | /* Copy the HOST command to command buffer */ | ||
138 | memcpy((void *) cmd, pcmd_ptr->cmd, pcmd_ptr->len); | ||
139 | dev_dbg(priv->adapter->dev, "cmd: host cmd size = %d\n", pcmd_ptr->len); | ||
140 | return 0; | ||
141 | } | ||
142 | |||
143 | /* | ||
144 | * This function downloads a command to the firmware. | ||
145 | * | ||
146 | * The function performs sanity tests, sets the command sequence | ||
147 | * number and size, converts the header fields to CPU format before | ||
148 | * sending. Afterwards, it logs the command ID and action for debugging | ||
149 | * and sets up the command timeout timer. | ||
150 | */ | ||
151 | static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv, | ||
152 | struct cmd_ctrl_node *cmd_node) | ||
153 | { | ||
154 | |||
155 | struct mwifiex_adapter *adapter = priv->adapter; | ||
156 | int ret = 0; | ||
157 | struct host_cmd_ds_command *host_cmd; | ||
158 | struct mwifiex_wait_queue *wait_queue = NULL; | ||
159 | uint16_t cmd_code; | ||
160 | uint16_t cmd_size; | ||
161 | struct timeval tstamp; | ||
162 | unsigned long flags; | ||
163 | |||
164 | if (!adapter || !cmd_node) | ||
165 | return -1; | ||
166 | |||
167 | host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); | ||
168 | if (cmd_node->wq_buf) | ||
169 | wait_queue = (struct mwifiex_wait_queue *) cmd_node->wq_buf; | ||
170 | |||
171 | /* Sanity test */ | ||
172 | if (host_cmd == NULL || host_cmd->size == 0) { | ||
173 | dev_err(adapter->dev, "DNLD_CMD: host_cmd is null" | ||
174 | " or cmd size is 0, not sending\n"); | ||
175 | if (wait_queue) | ||
176 | wait_queue->status = MWIFIEX_ERROR_CMD_DNLD_FAIL; | ||
177 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | ||
178 | return -1; | ||
179 | } | ||
180 | |||
181 | /* Set command sequence number */ | ||
182 | adapter->seq_num++; | ||
183 | host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO | ||
184 | (adapter->seq_num, cmd_node->priv->bss_num, | ||
185 | cmd_node->priv->bss_type)); | ||
186 | |||
187 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | ||
188 | adapter->curr_cmd = cmd_node; | ||
189 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | ||
190 | |||
191 | cmd_code = le16_to_cpu(host_cmd->command); | ||
192 | cmd_size = le16_to_cpu(host_cmd->size); | ||
193 | |||
194 | skb_trim(cmd_node->cmd_skb, cmd_size); | ||
195 | |||
196 | do_gettimeofday(&tstamp); | ||
197 | dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d," | ||
198 | " seqno %#x\n", | ||
199 | tstamp.tv_sec, tstamp.tv_usec, cmd_code, | ||
200 | le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)), cmd_size, | ||
201 | le16_to_cpu(host_cmd->seq_num)); | ||
202 | |||
203 | skb_push(cmd_node->cmd_skb, INTF_HEADER_LEN); | ||
204 | |||
205 | ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, | ||
206 | cmd_node->cmd_skb->data, | ||
207 | cmd_node->cmd_skb->len, NULL); | ||
208 | |||
209 | if (ret == -1) { | ||
210 | dev_err(adapter->dev, "DNLD_CMD: host to card failed\n"); | ||
211 | if (wait_queue) | ||
212 | wait_queue->status = MWIFIEX_ERROR_CMD_DNLD_FAIL; | ||
213 | mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd); | ||
214 | |||
215 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | ||
216 | adapter->curr_cmd = NULL; | ||
217 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | ||
218 | |||
219 | adapter->dbg.num_cmd_host_to_card_failure++; | ||
220 | return -1; | ||
221 | } | ||
222 | |||
223 | /* Save the last command id and action to debug log */ | ||
224 | adapter->dbg.last_cmd_index = | ||
225 | (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM; | ||
226 | adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code; | ||
227 | adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] = | ||
228 | le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)); | ||
229 | |||
230 | /* Clear BSS_NO_BITS from HostCmd */ | ||
231 | cmd_code &= HostCmd_CMD_ID_MASK; | ||
232 | |||
233 | /* Setup the timer after transmit command */ | ||
234 | mod_timer(&adapter->cmd_timer, | ||
235 | jiffies + (MWIFIEX_TIMER_10S * HZ) / 1000); | ||
236 | |||
237 | return 0; | ||
238 | } | ||
239 | |||
240 | /* | ||
241 | * This function downloads a sleep confirm command to the firmware. | ||
242 | * | ||
243 | * The function performs sanity tests, sets the command sequence | ||
244 | * number and size, converts the header fields to CPU format before | ||
245 | * sending. | ||
246 | * | ||
247 | * No responses are needed for sleep confirm command. | ||
248 | */ | ||
249 | static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter) | ||
250 | { | ||
251 | int ret = 0; | ||
252 | u16 cmd_len = 0; | ||
253 | struct mwifiex_private *priv; | ||
254 | struct mwifiex_opt_sleep_confirm_buffer *sleep_cfm_buf = | ||
255 | (struct mwifiex_opt_sleep_confirm_buffer *) | ||
256 | adapter->sleep_cfm->data; | ||
257 | cmd_len = sizeof(struct mwifiex_opt_sleep_confirm); | ||
258 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
259 | |||
260 | sleep_cfm_buf->ps_cfm_sleep.seq_num = | ||
261 | cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO | ||
262 | (adapter->seq_num, priv->bss_num, | ||
263 | priv->bss_type))); | ||
264 | adapter->seq_num++; | ||
265 | |||
266 | ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD, | ||
267 | adapter->sleep_cfm->data, | ||
268 | adapter->sleep_cfm->len + | ||
269 | INTF_HEADER_LEN, NULL); | ||
270 | |||
271 | if (ret == -1) { | ||
272 | dev_err(adapter->dev, "SLEEP_CFM: failed\n"); | ||
273 | adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++; | ||
274 | return -1; | ||
275 | } | ||
276 | if (GET_BSS_ROLE(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY)) | ||
277 | == MWIFIEX_BSS_ROLE_STA) { | ||
278 | if (!sleep_cfm_buf->ps_cfm_sleep.resp_ctrl) | ||
279 | /* Response is not needed for sleep | ||
280 | confirm command */ | ||
281 | adapter->ps_state = PS_STATE_SLEEP; | ||
282 | else | ||
283 | adapter->ps_state = PS_STATE_SLEEP_CFM; | ||
284 | |||
285 | if (!sleep_cfm_buf->ps_cfm_sleep.resp_ctrl | ||
286 | && (adapter->is_hs_configured | ||
287 | && !adapter->sleep_period.period)) { | ||
288 | adapter->pm_wakeup_card_req = true; | ||
289 | mwifiex_hs_activated_event(mwifiex_get_priv(adapter, | ||
290 | MWIFIEX_BSS_ROLE_STA), true); | ||
291 | } | ||
292 | } | ||
293 | |||
294 | return ret; | ||
295 | } | ||
296 | |||
297 | /* | ||
298 | * This function allocates the command buffers and links them to | ||
299 | * the command free queue. | ||
300 | * | ||
301 | * The driver uses a pre allocated number of command buffers, which | ||
302 | * are created at driver initializations and freed at driver cleanup. | ||
303 | * Every command needs to obtain a command buffer from this pool before | ||
304 | * it can be issued. The command free queue lists the command buffers | ||
305 | * currently free to use, while the command pending queue lists the | ||
306 | * command buffers already in use and awaiting handling. Command buffers | ||
307 | * are returned to the free queue after use. | ||
308 | */ | ||
309 | int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter) | ||
310 | { | ||
311 | struct cmd_ctrl_node *cmd_array; | ||
312 | u32 buf_size; | ||
313 | u32 i; | ||
314 | |||
315 | /* Allocate and initialize struct cmd_ctrl_node */ | ||
316 | buf_size = sizeof(struct cmd_ctrl_node) * MWIFIEX_NUM_OF_CMD_BUFFER; | ||
317 | cmd_array = kzalloc(buf_size, GFP_KERNEL); | ||
318 | if (!cmd_array) { | ||
319 | dev_err(adapter->dev, "%s: failed to alloc cmd_array\n", | ||
320 | __func__); | ||
321 | return -1; | ||
322 | } | ||
323 | |||
324 | adapter->cmd_pool = cmd_array; | ||
325 | memset(adapter->cmd_pool, 0, buf_size); | ||
326 | |||
327 | /* Allocate and initialize command buffers */ | ||
328 | for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { | ||
329 | cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER); | ||
330 | if (!cmd_array[i].skb) { | ||
331 | dev_err(adapter->dev, "ALLOC_CMD_BUF: out of memory\n"); | ||
332 | return -1; | ||
333 | } | ||
334 | } | ||
335 | |||
336 | for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) | ||
337 | mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]); | ||
338 | |||
339 | return 0; | ||
340 | } | ||
341 | |||
342 | /* | ||
343 | * This function frees the command buffers. | ||
344 | * | ||
345 | * The function calls the completion callback for all the command | ||
346 | * buffers that still have response buffers associated with them. | ||
347 | */ | ||
348 | int mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter) | ||
349 | { | ||
350 | struct cmd_ctrl_node *cmd_array; | ||
351 | u32 i; | ||
352 | |||
353 | /* Need to check if cmd pool is allocated or not */ | ||
354 | if (!adapter->cmd_pool) { | ||
355 | dev_dbg(adapter->dev, "info: FREE_CMD_BUF: cmd_pool is null\n"); | ||
356 | return 0; | ||
357 | } | ||
358 | |||
359 | cmd_array = adapter->cmd_pool; | ||
360 | |||
361 | /* Release shared memory buffers */ | ||
362 | for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) { | ||
363 | if (cmd_array[i].skb) { | ||
364 | dev_dbg(adapter->dev, "cmd: free cmd buffer %d\n", i); | ||
365 | dev_kfree_skb_any(cmd_array[i].skb); | ||
366 | } | ||
367 | if (!cmd_array[i].resp_skb) | ||
368 | continue; | ||
369 | mwifiex_recv_complete(adapter, cmd_array[i].resp_skb, 0); | ||
370 | } | ||
371 | /* Release struct cmd_ctrl_node */ | ||
372 | if (adapter->cmd_pool) { | ||
373 | dev_dbg(adapter->dev, "cmd: free cmd pool\n"); | ||
374 | kfree(adapter->cmd_pool); | ||
375 | adapter->cmd_pool = NULL; | ||
376 | } | ||
377 | |||
378 | return 0; | ||
379 | } | ||
380 | |||
381 | /* | ||
382 | * This function handles events generated by firmware. | ||
383 | * | ||
384 | * Event body of events received from firmware are not used (though they are | ||
385 | * saved), only the event ID is used. Some events are re-invoked by | ||
386 | * the driver, with a new event body. | ||
387 | * | ||
388 | * After processing, the function calls the completion callback | ||
389 | * for cleanup. | ||
390 | */ | ||
391 | int mwifiex_process_event(struct mwifiex_adapter *adapter) | ||
392 | { | ||
393 | int ret = 0; | ||
394 | struct mwifiex_private *priv = | ||
395 | mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
396 | struct sk_buff *skb = adapter->event_skb; | ||
397 | u32 eventcause = adapter->event_cause; | ||
398 | struct timeval tstamp; | ||
399 | struct mwifiex_rxinfo *rx_info = NULL; | ||
400 | |||
401 | /* Save the last event to debug log */ | ||
402 | adapter->dbg.last_event_index = | ||
403 | (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM; | ||
404 | adapter->dbg.last_event[adapter->dbg.last_event_index] = | ||
405 | (u16) eventcause; | ||
406 | |||
407 | /* Get BSS number and corresponding priv */ | ||
408 | priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause), | ||
409 | EVENT_GET_BSS_TYPE(eventcause)); | ||
410 | if (!priv) | ||
411 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
412 | /* Clear BSS_NO_BITS from event */ | ||
413 | eventcause &= EVENT_ID_MASK; | ||
414 | adapter->event_cause = eventcause; | ||
415 | |||
416 | if (skb) { | ||
417 | rx_info = MWIFIEX_SKB_RXCB(skb); | ||
418 | rx_info->bss_index = priv->bss_index; | ||
419 | } | ||
420 | |||
421 | if (eventcause != EVENT_PS_SLEEP && eventcause != EVENT_PS_AWAKE) { | ||
422 | do_gettimeofday(&tstamp); | ||
423 | dev_dbg(adapter->dev, "event: %lu.%lu: cause: %#x\n", | ||
424 | tstamp.tv_sec, tstamp.tv_usec, eventcause); | ||
425 | } | ||
426 | |||
427 | ret = mwifiex_process_sta_event(priv); | ||
428 | |||
429 | adapter->event_cause = 0; | ||
430 | adapter->event_skb = NULL; | ||
431 | |||
432 | mwifiex_recv_complete(adapter, skb, 0); | ||
433 | |||
434 | return ret; | ||
435 | } | ||
436 | |||
437 | /* | ||
438 | * This function prepares a command before sending it to the firmware. | ||
439 | * | ||
440 | * Preparation includes - | ||
441 | * - Sanity tests to make sure the card is still present or the FW | ||
442 | * is not reset | ||
443 | * - Getting a new command node from the command free queue | ||
444 | * - Initializing the command node for default parameters | ||
445 | * - Fill up the non-default parameters and buffer pointers | ||
446 | * - Add the command to pending queue | ||
447 | */ | ||
448 | int mwifiex_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no, | ||
449 | u16 cmd_action, u32 cmd_oid, | ||
450 | void *wait_queue, void *data_buf) | ||
451 | { | ||
452 | int ret = 0; | ||
453 | struct mwifiex_adapter *adapter = priv->adapter; | ||
454 | struct cmd_ctrl_node *cmd_node = NULL; | ||
455 | struct host_cmd_ds_command *cmd_ptr = NULL; | ||
456 | |||
457 | if (!adapter) { | ||
458 | pr_err("PREP_CMD: adapter is NULL\n"); | ||
459 | return -1; | ||
460 | } | ||
461 | |||
462 | if (adapter->is_suspended) { | ||
463 | dev_err(adapter->dev, "PREP_CMD: device in suspended state\n"); | ||
464 | return -1; | ||
465 | } | ||
466 | |||
467 | if (adapter->surprise_removed) { | ||
468 | dev_err(adapter->dev, "PREP_CMD: card is removed\n"); | ||
469 | return -1; | ||
470 | } | ||
471 | |||
472 | if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) { | ||
473 | if (cmd_no != HostCmd_CMD_FUNC_INIT) { | ||
474 | dev_err(adapter->dev, "PREP_CMD: FW in reset state\n"); | ||
475 | return -1; | ||
476 | } | ||
477 | } | ||
478 | |||
479 | /* Get a new command node */ | ||
480 | cmd_node = mwifiex_get_cmd_node(adapter); | ||
481 | |||
482 | if (!cmd_node) { | ||
483 | dev_err(adapter->dev, "PREP_CMD: no free cmd node\n"); | ||
484 | return -1; | ||
485 | } | ||
486 | |||
487 | /* Initialize the command node */ | ||
488 | mwifiex_init_cmd_node(priv, cmd_node, cmd_oid, wait_queue, data_buf); | ||
489 | |||
490 | if (!cmd_node->cmd_skb) { | ||
491 | dev_err(adapter->dev, "PREP_CMD: no free cmd buf\n"); | ||
492 | return -1; | ||
493 | } | ||
494 | |||
495 | memset(skb_put(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)), | ||
496 | 0, sizeof(struct host_cmd_ds_command)); | ||
497 | |||
498 | cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); | ||
499 | cmd_ptr->command = cpu_to_le16(cmd_no); | ||
500 | cmd_ptr->result = 0; | ||
501 | |||
502 | /* Prepare command */ | ||
503 | if (cmd_no) { | ||
504 | ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action, | ||
505 | cmd_oid, data_buf, cmd_ptr); | ||
506 | } else { | ||
507 | ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf); | ||
508 | cmd_node->cmd_flag |= CMD_F_HOSTCMD; | ||
509 | } | ||
510 | |||
511 | /* Return error, since the command preparation failed */ | ||
512 | if (ret) { | ||
513 | dev_err(adapter->dev, "PREP_CMD: cmd %#x preparation failed\n", | ||
514 | cmd_no); | ||
515 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | ||
516 | return -1; | ||
517 | } | ||
518 | |||
519 | /* Send command */ | ||
520 | if (cmd_no == HostCmd_CMD_802_11_SCAN) | ||
521 | mwifiex_queue_scan_cmd(priv, cmd_node); | ||
522 | else | ||
523 | mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true); | ||
524 | |||
525 | return ret; | ||
526 | } | ||
527 | |||
528 | /* | ||
529 | * This function returns a command to the command free queue. | ||
530 | * | ||
531 | * The function also calls the completion callback if required, before | ||
532 | * cleaning the command node and re-inserting it into the free queue. | ||
533 | */ | ||
534 | void | ||
535 | mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter, | ||
536 | struct cmd_ctrl_node *cmd_node) | ||
537 | { | ||
538 | struct mwifiex_wait_queue *wait_queue = NULL; | ||
539 | unsigned long flags; | ||
540 | |||
541 | if (cmd_node == NULL) | ||
542 | return; | ||
543 | if (cmd_node->wq_buf) { | ||
544 | wait_queue = (struct mwifiex_wait_queue *) cmd_node->wq_buf; | ||
545 | if (wait_queue->status != MWIFIEX_ERROR_NO_ERROR) | ||
546 | mwifiex_ioctl_complete(adapter, wait_queue, -1); | ||
547 | else | ||
548 | mwifiex_ioctl_complete(adapter, wait_queue, 0); | ||
549 | } | ||
550 | /* Clean the node */ | ||
551 | mwifiex_clean_cmd_node(adapter, cmd_node); | ||
552 | |||
553 | /* Insert node into cmd_free_q */ | ||
554 | spin_lock_irqsave(&adapter->cmd_free_q_lock, flags); | ||
555 | list_add_tail(&cmd_node->list, &adapter->cmd_free_q); | ||
556 | spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags); | ||
557 | |||
558 | return; | ||
559 | } | ||
560 | |||
561 | /* | ||
562 | * This function queues a command to the command pending queue. | ||
563 | * | ||
564 | * This in effect adds the command to the command list to be executed. | ||
565 | * Exit PS command is handled specially, by placing it always to the | ||
566 | * front of the command queue. | ||
567 | */ | ||
568 | void | ||
569 | mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter, | ||
570 | struct cmd_ctrl_node *cmd_node, u32 add_tail) | ||
571 | { | ||
572 | struct host_cmd_ds_command *host_cmd = NULL; | ||
573 | u16 command; | ||
574 | unsigned long flags; | ||
575 | |||
576 | host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); | ||
577 | if (!host_cmd) { | ||
578 | dev_err(adapter->dev, "QUEUE_CMD: host_cmd is NULL\n"); | ||
579 | return; | ||
580 | } | ||
581 | |||
582 | command = le16_to_cpu(host_cmd->command); | ||
583 | |||
584 | /* Exit_PS command needs to be queued in the header always. */ | ||
585 | if (command == HostCmd_CMD_802_11_PS_MODE_ENH) { | ||
586 | struct host_cmd_ds_802_11_ps_mode_enh *pm = | ||
587 | &host_cmd->params.psmode_enh; | ||
588 | if ((le16_to_cpu(pm->action) == DIS_PS) | ||
589 | || (le16_to_cpu(pm->action) == DIS_AUTO_PS)) { | ||
590 | if (adapter->ps_state != PS_STATE_AWAKE) | ||
591 | add_tail = false; | ||
592 | } | ||
593 | } | ||
594 | |||
595 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | ||
596 | if (add_tail) | ||
597 | list_add_tail(&cmd_node->list, &adapter->cmd_pending_q); | ||
598 | else | ||
599 | list_add(&cmd_node->list, &adapter->cmd_pending_q); | ||
600 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | ||
601 | |||
602 | dev_dbg(adapter->dev, "cmd: QUEUE_CMD: cmd=%#x is queued\n", command); | ||
603 | |||
604 | return; | ||
605 | } | ||
606 | |||
607 | /* | ||
608 | * This function executes the next command in command pending queue. | ||
609 | * | ||
610 | * This function will fail if a command is already in processing stage, | ||
611 | * otherwise it will dequeue the first command from the command pending | ||
612 | * queue and send to the firmware. | ||
613 | * | ||
614 | * If the device is currently in host sleep mode, any commands, except the | ||
615 | * host sleep configuration command will de-activate the host sleep. For PS | ||
616 | * mode, the function will put the firmware back to sleep if applicable. | ||
617 | */ | ||
618 | int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter) | ||
619 | { | ||
620 | struct mwifiex_private *priv = NULL; | ||
621 | struct cmd_ctrl_node *cmd_node = NULL; | ||
622 | int ret = 0; | ||
623 | struct host_cmd_ds_command *host_cmd; | ||
624 | unsigned long cmd_flags; | ||
625 | unsigned long cmd_pending_q_flags; | ||
626 | |||
627 | /* Check if already in processing */ | ||
628 | if (adapter->curr_cmd) { | ||
629 | dev_err(adapter->dev, "EXEC_NEXT_CMD: cmd in processing\n"); | ||
630 | return -1; | ||
631 | } | ||
632 | |||
633 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
634 | /* Check if any command is pending */ | ||
635 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags); | ||
636 | if (list_empty(&adapter->cmd_pending_q)) { | ||
637 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, | ||
638 | cmd_pending_q_flags); | ||
639 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
640 | return 0; | ||
641 | } | ||
642 | cmd_node = list_first_entry(&adapter->cmd_pending_q, | ||
643 | struct cmd_ctrl_node, list); | ||
644 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, | ||
645 | cmd_pending_q_flags); | ||
646 | |||
647 | host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data); | ||
648 | priv = cmd_node->priv; | ||
649 | |||
650 | if (adapter->ps_state != PS_STATE_AWAKE) { | ||
651 | dev_err(adapter->dev, "%s: cannot send cmd in sleep state," | ||
652 | " this should not happen\n", __func__); | ||
653 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
654 | return ret; | ||
655 | } | ||
656 | |||
657 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags); | ||
658 | list_del(&cmd_node->list); | ||
659 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, | ||
660 | cmd_pending_q_flags); | ||
661 | |||
662 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
663 | ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node); | ||
664 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
665 | /* Any command sent to the firmware when host is in sleep | ||
666 | * mode should de-configure host sleep. We should skip the | ||
667 | * host sleep configuration command itself though | ||
668 | */ | ||
669 | if (priv && (host_cmd->command != | ||
670 | cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) { | ||
671 | if (adapter->hs_activated) { | ||
672 | adapter->is_hs_configured = false; | ||
673 | mwifiex_hs_activated_event(priv, false); | ||
674 | } | ||
675 | } | ||
676 | |||
677 | return ret; | ||
678 | } | ||
679 | |||
680 | /* | ||
681 | * This function handles the command response. | ||
682 | * | ||
683 | * After processing, the function cleans the command node and puts | ||
684 | * it back to the command free queue. | ||
685 | */ | ||
686 | int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter) | ||
687 | { | ||
688 | struct host_cmd_ds_command *resp = NULL; | ||
689 | struct mwifiex_private *priv = | ||
690 | mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
691 | int ret = 0; | ||
692 | uint16_t orig_cmdresp_no; | ||
693 | uint16_t cmdresp_no; | ||
694 | uint16_t cmdresp_result; | ||
695 | struct mwifiex_wait_queue *wait_queue = NULL; | ||
696 | struct timeval tstamp; | ||
697 | unsigned long flags; | ||
698 | |||
699 | /* Now we got response from FW, cancel the command timer */ | ||
700 | del_timer(&adapter->cmd_timer); | ||
701 | |||
702 | if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) { | ||
703 | resp = (struct host_cmd_ds_command *) adapter->upld_buf; | ||
704 | dev_err(adapter->dev, "CMD_RESP: NULL curr_cmd, %#x\n", | ||
705 | le16_to_cpu(resp->command)); | ||
706 | return -1; | ||
707 | } | ||
708 | |||
709 | if (adapter->curr_cmd->wq_buf) | ||
710 | wait_queue = (struct mwifiex_wait_queue *) | ||
711 | adapter->curr_cmd->wq_buf; | ||
712 | |||
713 | adapter->num_cmd_timeout = 0; | ||
714 | |||
715 | resp = (struct host_cmd_ds_command *) adapter->curr_cmd->resp_skb->data; | ||
716 | if (adapter->curr_cmd->cmd_flag & CMD_F_CANCELED) { | ||
717 | dev_err(adapter->dev, "CMD_RESP: %#x been canceled\n", | ||
718 | le16_to_cpu(resp->command)); | ||
719 | mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd); | ||
720 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | ||
721 | adapter->curr_cmd = NULL; | ||
722 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | ||
723 | return -1; | ||
724 | } | ||
725 | |||
726 | if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { | ||
727 | /* Copy original response back to response buffer */ | ||
728 | struct mwifiex_ds_misc_cmd *hostcmd = NULL; | ||
729 | uint16_t size = le16_to_cpu(resp->size); | ||
730 | dev_dbg(adapter->dev, "info: host cmd resp size = %d\n", size); | ||
731 | size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER); | ||
732 | if (adapter->curr_cmd->data_buf) { | ||
733 | hostcmd = (struct mwifiex_ds_misc_cmd *) | ||
734 | adapter->curr_cmd->data_buf; | ||
735 | hostcmd->len = size; | ||
736 | memcpy(hostcmd->cmd, (void *) resp, size); | ||
737 | } | ||
738 | } | ||
739 | orig_cmdresp_no = le16_to_cpu(resp->command); | ||
740 | |||
741 | /* Get BSS number and corresponding priv */ | ||
742 | priv = mwifiex_get_priv_by_id(adapter, | ||
743 | HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)), | ||
744 | HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num))); | ||
745 | if (!priv) | ||
746 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
747 | /* Clear RET_BIT from HostCmd */ | ||
748 | resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK); | ||
749 | |||
750 | cmdresp_no = le16_to_cpu(resp->command); | ||
751 | cmdresp_result = le16_to_cpu(resp->result); | ||
752 | |||
753 | /* Save the last command response to debug log */ | ||
754 | adapter->dbg.last_cmd_resp_index = | ||
755 | (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM; | ||
756 | adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] = | ||
757 | orig_cmdresp_no; | ||
758 | |||
759 | do_gettimeofday(&tstamp); | ||
760 | dev_dbg(adapter->dev, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d," | ||
761 | " len %d, seqno 0x%x\n", | ||
762 | tstamp.tv_sec, tstamp.tv_usec, orig_cmdresp_no, cmdresp_result, | ||
763 | le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num)); | ||
764 | |||
765 | if (!(orig_cmdresp_no & HostCmd_RET_BIT)) { | ||
766 | dev_err(adapter->dev, "CMD_RESP: invalid cmd resp\n"); | ||
767 | if (wait_queue) | ||
768 | wait_queue->status = MWIFIEX_ERROR_FW_CMDRESP; | ||
769 | |||
770 | mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd); | ||
771 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | ||
772 | adapter->curr_cmd = NULL; | ||
773 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | ||
774 | return -1; | ||
775 | } | ||
776 | |||
777 | if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) { | ||
778 | adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD; | ||
779 | if ((cmdresp_result == HostCmd_RESULT_OK) | ||
780 | && (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH)) | ||
781 | ret = mwifiex_ret_802_11_hs_cfg(priv, resp); | ||
782 | } else { | ||
783 | /* handle response */ | ||
784 | ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp, | ||
785 | wait_queue); | ||
786 | } | ||
787 | |||
788 | /* Check init command response */ | ||
789 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) { | ||
790 | if (ret == -1) { | ||
791 | dev_err(adapter->dev, "%s: cmd %#x failed during " | ||
792 | "initialization\n", __func__, cmdresp_no); | ||
793 | mwifiex_init_fw_complete(adapter); | ||
794 | return -1; | ||
795 | } else if (adapter->last_init_cmd == cmdresp_no) | ||
796 | adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE; | ||
797 | } | ||
798 | |||
799 | if (adapter->curr_cmd) { | ||
800 | if (wait_queue && (!ret)) | ||
801 | wait_queue->status = MWIFIEX_ERROR_NO_ERROR; | ||
802 | else if (wait_queue && (ret == -1)) | ||
803 | wait_queue->status = MWIFIEX_ERROR_CMD_RESP_FAIL; | ||
804 | |||
805 | /* Clean up and put current command back to cmd_free_q */ | ||
806 | mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd); | ||
807 | |||
808 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | ||
809 | adapter->curr_cmd = NULL; | ||
810 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | ||
811 | } | ||
812 | |||
813 | return ret; | ||
814 | } | ||
815 | |||
816 | /* | ||
817 | * This function handles the timeout of command sending. | ||
818 | * | ||
819 | * It will re-send the same command again. | ||
820 | */ | ||
821 | void | ||
822 | mwifiex_cmd_timeout_func(unsigned long function_context) | ||
823 | { | ||
824 | struct mwifiex_adapter *adapter = | ||
825 | (struct mwifiex_adapter *) function_context; | ||
826 | struct cmd_ctrl_node *cmd_node = NULL; | ||
827 | struct mwifiex_wait_queue *wait_queue = NULL; | ||
828 | struct timeval tstamp; | ||
829 | |||
830 | adapter->num_cmd_timeout++; | ||
831 | adapter->dbg.num_cmd_timeout++; | ||
832 | if (!adapter->curr_cmd) { | ||
833 | dev_dbg(adapter->dev, "cmd: empty curr_cmd\n"); | ||
834 | return; | ||
835 | } | ||
836 | cmd_node = adapter->curr_cmd; | ||
837 | if (cmd_node->wq_buf) { | ||
838 | wait_queue = (struct mwifiex_wait_queue *) cmd_node->wq_buf; | ||
839 | wait_queue->status = MWIFIEX_ERROR_CMD_TIMEOUT; | ||
840 | } | ||
841 | |||
842 | if (cmd_node) { | ||
843 | adapter->dbg.timeout_cmd_id = | ||
844 | adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index]; | ||
845 | adapter->dbg.timeout_cmd_act = | ||
846 | adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index]; | ||
847 | do_gettimeofday(&tstamp); | ||
848 | dev_err(adapter->dev, "%s: Timeout cmd id (%lu.%lu) = %#x," | ||
849 | " act = %#x\n", __func__, | ||
850 | tstamp.tv_sec, tstamp.tv_usec, | ||
851 | adapter->dbg.timeout_cmd_id, | ||
852 | adapter->dbg.timeout_cmd_act); | ||
853 | |||
854 | dev_err(adapter->dev, "num_data_h2c_failure = %d\n", | ||
855 | adapter->dbg.num_tx_host_to_card_failure); | ||
856 | dev_err(adapter->dev, "num_cmd_h2c_failure = %d\n", | ||
857 | adapter->dbg.num_cmd_host_to_card_failure); | ||
858 | |||
859 | dev_err(adapter->dev, "num_cmd_timeout = %d\n", | ||
860 | adapter->dbg.num_cmd_timeout); | ||
861 | dev_err(adapter->dev, "num_tx_timeout = %d\n", | ||
862 | adapter->dbg.num_tx_timeout); | ||
863 | |||
864 | dev_err(adapter->dev, "last_cmd_index = %d\n", | ||
865 | adapter->dbg.last_cmd_index); | ||
866 | print_hex_dump_bytes("last_cmd_id: ", DUMP_PREFIX_OFFSET, | ||
867 | adapter->dbg.last_cmd_id, DBG_CMD_NUM); | ||
868 | print_hex_dump_bytes("last_cmd_act: ", DUMP_PREFIX_OFFSET, | ||
869 | adapter->dbg.last_cmd_act, DBG_CMD_NUM); | ||
870 | |||
871 | dev_err(adapter->dev, "last_cmd_resp_index = %d\n", | ||
872 | adapter->dbg.last_cmd_resp_index); | ||
873 | print_hex_dump_bytes("last_cmd_resp_id: ", DUMP_PREFIX_OFFSET, | ||
874 | adapter->dbg.last_cmd_resp_id, DBG_CMD_NUM); | ||
875 | |||
876 | dev_err(adapter->dev, "last_event_index = %d\n", | ||
877 | adapter->dbg.last_event_index); | ||
878 | print_hex_dump_bytes("last_event: ", DUMP_PREFIX_OFFSET, | ||
879 | adapter->dbg.last_event, DBG_CMD_NUM); | ||
880 | |||
881 | dev_err(adapter->dev, "data_sent=%d cmd_sent=%d\n", | ||
882 | adapter->data_sent, adapter->cmd_sent); | ||
883 | |||
884 | dev_err(adapter->dev, "ps_mode=%d ps_state=%d\n", | ||
885 | adapter->ps_mode, adapter->ps_state); | ||
886 | } | ||
887 | if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) | ||
888 | mwifiex_init_fw_complete(adapter); | ||
889 | |||
890 | return; | ||
891 | } | ||
892 | |||
893 | /* | ||
894 | * This function cancels all the pending commands. | ||
895 | * | ||
896 | * The current command, all commands in command pending queue and all scan | ||
897 | * commands in scan pending queue are cancelled. All the completion callbacks | ||
898 | * are called with failure status to ensure cleanup. | ||
899 | */ | ||
900 | void | ||
901 | mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter) | ||
902 | { | ||
903 | struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL; | ||
904 | struct mwifiex_wait_queue *wait_queue = NULL; | ||
905 | unsigned long flags; | ||
906 | |||
907 | /* Cancel current cmd */ | ||
908 | if ((adapter->curr_cmd) && (adapter->curr_cmd->wq_buf)) { | ||
909 | wait_queue = | ||
910 | (struct mwifiex_wait_queue *) adapter->curr_cmd->wq_buf; | ||
911 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | ||
912 | adapter->curr_cmd->wq_buf = NULL; | ||
913 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | ||
914 | wait_queue->status = MWIFIEX_ERROR_CMD_CANCEL; | ||
915 | mwifiex_ioctl_complete(adapter, wait_queue, -1); | ||
916 | } | ||
917 | /* Cancel all pending command */ | ||
918 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | ||
919 | list_for_each_entry_safe(cmd_node, tmp_node, | ||
920 | &adapter->cmd_pending_q, list) { | ||
921 | list_del(&cmd_node->list); | ||
922 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | ||
923 | |||
924 | if (cmd_node->wq_buf) { | ||
925 | wait_queue = | ||
926 | (struct mwifiex_wait_queue *) cmd_node->wq_buf; | ||
927 | wait_queue->status = MWIFIEX_ERROR_CMD_CANCEL; | ||
928 | mwifiex_ioctl_complete(adapter, wait_queue, -1); | ||
929 | cmd_node->wq_buf = NULL; | ||
930 | } | ||
931 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | ||
932 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | ||
933 | } | ||
934 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | ||
935 | |||
936 | /* Cancel all pending scan command */ | ||
937 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); | ||
938 | list_for_each_entry_safe(cmd_node, tmp_node, | ||
939 | &adapter->scan_pending_q, list) { | ||
940 | list_del(&cmd_node->list); | ||
941 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); | ||
942 | |||
943 | cmd_node->wq_buf = NULL; | ||
944 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | ||
945 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); | ||
946 | } | ||
947 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); | ||
948 | |||
949 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | ||
950 | adapter->scan_processing = false; | ||
951 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | ||
952 | } | ||
953 | |||
954 | /* | ||
955 | * This function cancels all pending commands that matches with | ||
956 | * the given IOCTL request. | ||
957 | * | ||
958 | * Both the current command buffer and the pending command queue are | ||
959 | * searched for matching IOCTL request. The completion callback of | ||
960 | * the matched command is called with failure status to ensure cleanup. | ||
961 | * In case of scan commands, all pending commands in scan pending queue | ||
962 | * are cancelled. | ||
963 | */ | ||
964 | void | ||
965 | mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter, | ||
966 | struct mwifiex_wait_queue *wait_queue) | ||
967 | { | ||
968 | struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL; | ||
969 | unsigned long cmd_flags; | ||
970 | unsigned long cmd_pending_q_flags; | ||
971 | unsigned long scan_pending_q_flags; | ||
972 | uint16_t cancel_scan_cmd = false; | ||
973 | |||
974 | if ((adapter->curr_cmd) && | ||
975 | (adapter->curr_cmd->wq_buf == wait_queue)) { | ||
976 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
977 | cmd_node = adapter->curr_cmd; | ||
978 | cmd_node->wq_buf = NULL; | ||
979 | cmd_node->cmd_flag |= CMD_F_CANCELED; | ||
980 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
981 | } | ||
982 | |||
983 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
984 | while (1) { | ||
985 | cmd_node = mwifiex_get_pending_ioctl_cmd(adapter, wait_queue); | ||
986 | if (!cmd_node) | ||
987 | break; | ||
988 | |||
989 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, | ||
990 | cmd_pending_q_flags); | ||
991 | list_del(&cmd_node->list); | ||
992 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, | ||
993 | cmd_pending_q_flags); | ||
994 | |||
995 | cmd_node->wq_buf = NULL; | ||
996 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | ||
997 | } | ||
998 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
999 | /* Cancel all pending scan command */ | ||
1000 | spin_lock_irqsave(&adapter->scan_pending_q_lock, | ||
1001 | scan_pending_q_flags); | ||
1002 | list_for_each_entry_safe(cmd_node, tmp_node, | ||
1003 | &adapter->scan_pending_q, list) { | ||
1004 | if (cmd_node->wq_buf == wait_queue) { | ||
1005 | list_del(&cmd_node->list); | ||
1006 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, | ||
1007 | scan_pending_q_flags); | ||
1008 | cmd_node->wq_buf = NULL; | ||
1009 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | ||
1010 | spin_lock_irqsave(&adapter->scan_pending_q_lock, | ||
1011 | scan_pending_q_flags); | ||
1012 | cancel_scan_cmd = true; | ||
1013 | } | ||
1014 | } | ||
1015 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, | ||
1016 | scan_pending_q_flags); | ||
1017 | |||
1018 | if (cancel_scan_cmd) { | ||
1019 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
1020 | adapter->scan_processing = false; | ||
1021 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags); | ||
1022 | } | ||
1023 | wait_queue->status = MWIFIEX_ERROR_CMD_CANCEL; | ||
1024 | mwifiex_ioctl_complete(adapter, wait_queue, -1); | ||
1025 | |||
1026 | return; | ||
1027 | } | ||
1028 | |||
1029 | /* | ||
1030 | * This function sends the sleep confirm command to firmware, if | ||
1031 | * possible. | ||
1032 | * | ||
1033 | * The sleep confirm command cannot be issued if command response, | ||
1034 | * data response or event response is awaiting handling, or if we | ||
1035 | * are in the middle of sending a command, or expecting a command | ||
1036 | * response. | ||
1037 | */ | ||
1038 | void | ||
1039 | mwifiex_check_ps_cond(struct mwifiex_adapter *adapter) | ||
1040 | { | ||
1041 | if (!adapter->cmd_sent && | ||
1042 | !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter)) | ||
1043 | mwifiex_dnld_sleep_confirm_cmd(adapter); | ||
1044 | else | ||
1045 | dev_dbg(adapter->dev, | ||
1046 | "cmd: Delay Sleep Confirm (%s%s%s)\n", | ||
1047 | (adapter->cmd_sent) ? "D" : "", | ||
1048 | (adapter->curr_cmd) ? "C" : "", | ||
1049 | (IS_CARD_RX_RCVD(adapter)) ? "R" : ""); | ||
1050 | } | ||
1051 | |||
1052 | /* | ||
1053 | * This function sends a Host Sleep activated event to applications. | ||
1054 | * | ||
1055 | * This event is generated by the driver, with a blank event body. | ||
1056 | */ | ||
1057 | void | ||
1058 | mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated) | ||
1059 | { | ||
1060 | if (activated) { | ||
1061 | if (priv->adapter->is_hs_configured) { | ||
1062 | priv->adapter->hs_activated = true; | ||
1063 | dev_dbg(priv->adapter->dev, "event: hs_activated\n"); | ||
1064 | priv->adapter->hs_activate_wait_q_woken = true; | ||
1065 | wake_up_interruptible( | ||
1066 | &priv->adapter->hs_activate_wait_q); | ||
1067 | } else { | ||
1068 | dev_dbg(priv->adapter->dev, "event: HS not configured\n"); | ||
1069 | } | ||
1070 | } else { | ||
1071 | dev_dbg(priv->adapter->dev, "event: hs_deactivated\n"); | ||
1072 | priv->adapter->hs_activated = false; | ||
1073 | } | ||
1074 | } | ||
1075 | |||
1076 | /* | ||
1077 | * This function handles the command response of a Host Sleep configuration | ||
1078 | * command. | ||
1079 | * | ||
1080 | * Handling includes changing the header fields into CPU format | ||
1081 | * and setting the current host sleep activation status in driver. | ||
1082 | * | ||
1083 | * In case host sleep status change, the function generates an event to | ||
1084 | * notify the applications. | ||
1085 | */ | ||
1086 | int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv, | ||
1087 | struct host_cmd_ds_command *resp) | ||
1088 | { | ||
1089 | struct mwifiex_adapter *adapter = priv->adapter; | ||
1090 | struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg = | ||
1091 | &resp->params.opt_hs_cfg; | ||
1092 | uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions); | ||
1093 | |||
1094 | if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE)) { | ||
1095 | mwifiex_hs_activated_event(priv, true); | ||
1096 | return 0; | ||
1097 | } else { | ||
1098 | dev_dbg(adapter->dev, "cmd: CMD_RESP: HS_CFG cmd reply" | ||
1099 | " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n", | ||
1100 | resp->result, conditions, | ||
1101 | phs_cfg->params.hs_config.gpio, | ||
1102 | phs_cfg->params.hs_config.gap); | ||
1103 | } | ||
1104 | if (conditions != HOST_SLEEP_CFG_CANCEL) { | ||
1105 | adapter->is_hs_configured = true; | ||
1106 | } else { | ||
1107 | adapter->is_hs_configured = false; | ||
1108 | if (adapter->hs_activated) | ||
1109 | mwifiex_hs_activated_event(priv, false); | ||
1110 | } | ||
1111 | |||
1112 | return 0; | ||
1113 | } | ||
1114 | |||
1115 | /* | ||
1116 | * This function wakes up the adapter and generates a Host Sleep | ||
1117 | * cancel event on receiving the power up interrupt. | ||
1118 | */ | ||
1119 | void | ||
1120 | mwifiex_process_hs_config(struct mwifiex_adapter *adapter) | ||
1121 | { | ||
1122 | dev_dbg(adapter->dev, "info: %s: auto cancelling host sleep" | ||
1123 | " since there is interrupt from the firmware\n", __func__); | ||
1124 | |||
1125 | adapter->if_ops.wakeup(adapter); | ||
1126 | adapter->hs_activated = false; | ||
1127 | adapter->is_hs_configured = false; | ||
1128 | mwifiex_hs_activated_event(mwifiex_get_priv(adapter, | ||
1129 | MWIFIEX_BSS_ROLE_ANY), false); | ||
1130 | return; | ||
1131 | } | ||
1132 | |||
1133 | /* | ||
1134 | * This function handles the command response of a sleep confirm command. | ||
1135 | * | ||
1136 | * The function sets the card state to SLEEP if the response indicates success. | ||
1137 | */ | ||
1138 | void | ||
1139 | mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter, | ||
1140 | u8 *pbuf, u32 upld_len) | ||
1141 | { | ||
1142 | struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf; | ||
1143 | struct mwifiex_private *priv = | ||
1144 | mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
1145 | uint16_t result = le16_to_cpu(cmd->result); | ||
1146 | uint16_t command = le16_to_cpu(cmd->command); | ||
1147 | uint16_t seq_num = le16_to_cpu(cmd->seq_num); | ||
1148 | |||
1149 | if (!upld_len) { | ||
1150 | dev_err(adapter->dev, "%s: cmd size is 0\n", __func__); | ||
1151 | return; | ||
1152 | } | ||
1153 | |||
1154 | /* Get BSS number and corresponding priv */ | ||
1155 | priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num), | ||
1156 | HostCmd_GET_BSS_TYPE(seq_num)); | ||
1157 | if (!priv) | ||
1158 | priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); | ||
1159 | |||
1160 | /* Update sequence number */ | ||
1161 | seq_num = HostCmd_GET_SEQ_NO(seq_num); | ||
1162 | /* Clear RET_BIT from HostCmd */ | ||
1163 | command &= HostCmd_CMD_ID_MASK; | ||
1164 | |||
1165 | if (command != HostCmd_CMD_802_11_PS_MODE_ENH) { | ||
1166 | dev_err(adapter->dev, "%s: received unexpected response for" | ||
1167 | " cmd %x, result = %x\n", __func__, command, result); | ||
1168 | return; | ||
1169 | } | ||
1170 | |||
1171 | if (result) { | ||
1172 | dev_err(adapter->dev, "%s: sleep confirm cmd failed\n", | ||
1173 | __func__); | ||
1174 | adapter->pm_wakeup_card_req = false; | ||
1175 | adapter->ps_state = PS_STATE_AWAKE; | ||
1176 | return; | ||
1177 | } | ||
1178 | adapter->pm_wakeup_card_req = true; | ||
1179 | if (adapter->is_hs_configured) | ||
1180 | mwifiex_hs_activated_event(mwifiex_get_priv(adapter, | ||
1181 | MWIFIEX_BSS_ROLE_ANY), true); | ||
1182 | adapter->ps_state = PS_STATE_SLEEP; | ||
1183 | cmd->command = cpu_to_le16(command); | ||
1184 | cmd->seq_num = cpu_to_le16(seq_num); | ||
1185 | } | ||
1186 | EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp); | ||
1187 | |||
1188 | /* | ||
1189 | * This function prepares an enhanced power mode command. | ||
1190 | * | ||
1191 | * This function can be used to disable power save or to configure | ||
1192 | * power save with auto PS or STA PS or auto deep sleep. | ||
1193 | * | ||
1194 | * Preparation includes - | ||
1195 | * - Setting command ID, action and proper size | ||
1196 | * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV, | ||
1197 | * auto deep sleep TLV (as required) | ||
1198 | * - Ensuring correct endian-ness | ||
1199 | */ | ||
1200 | int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv, | ||
1201 | struct host_cmd_ds_command *cmd, | ||
1202 | u16 cmd_action, uint16_t ps_bitmap, | ||
1203 | void *data_buf) | ||
1204 | { | ||
1205 | struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh = | ||
1206 | &cmd->params.psmode_enh; | ||
1207 | u8 *tlv = NULL; | ||
1208 | u16 cmd_size = 0; | ||
1209 | |||
1210 | cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); | ||
1211 | if (cmd_action == DIS_AUTO_PS) { | ||
1212 | psmode_enh->action = cpu_to_le16(DIS_AUTO_PS); | ||
1213 | psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); | ||
1214 | cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + | ||
1215 | sizeof(psmode_enh->params.ps_bitmap)); | ||
1216 | } else if (cmd_action == GET_PS) { | ||
1217 | psmode_enh->action = cpu_to_le16(GET_PS); | ||
1218 | psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); | ||
1219 | cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) + | ||
1220 | sizeof(psmode_enh->params.ps_bitmap)); | ||
1221 | } else if (cmd_action == EN_AUTO_PS) { | ||
1222 | psmode_enh->action = cpu_to_le16(EN_AUTO_PS); | ||
1223 | psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap); | ||
1224 | cmd_size = S_DS_GEN + sizeof(psmode_enh->action) + | ||
1225 | sizeof(psmode_enh->params.ps_bitmap); | ||
1226 | tlv = (u8 *) cmd + cmd_size; | ||
1227 | if (ps_bitmap & BITMAP_STA_PS) { | ||
1228 | struct mwifiex_adapter *adapter = priv->adapter; | ||
1229 | struct mwifiex_ie_types_ps_param *ps_tlv = | ||
1230 | (struct mwifiex_ie_types_ps_param *) tlv; | ||
1231 | struct mwifiex_ps_param *ps_mode = &ps_tlv->param; | ||
1232 | ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM); | ||
1233 | ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) - | ||
1234 | sizeof(struct mwifiex_ie_types_header)); | ||
1235 | cmd_size += sizeof(*ps_tlv); | ||
1236 | tlv += sizeof(*ps_tlv); | ||
1237 | dev_dbg(adapter->dev, "cmd: PS Command: Enter PS\n"); | ||
1238 | ps_mode->null_pkt_interval = | ||
1239 | cpu_to_le16(adapter->null_pkt_interval); | ||
1240 | ps_mode->multiple_dtims = | ||
1241 | cpu_to_le16(adapter->multiple_dtim); | ||
1242 | ps_mode->bcn_miss_timeout = | ||
1243 | cpu_to_le16(adapter->bcn_miss_time_out); | ||
1244 | ps_mode->local_listen_interval = | ||
1245 | cpu_to_le16(adapter->local_listen_interval); | ||
1246 | ps_mode->adhoc_wake_period = | ||
1247 | cpu_to_le16(adapter->adhoc_awake_period); | ||
1248 | ps_mode->delay_to_ps = | ||
1249 | cpu_to_le16(adapter->delay_to_ps); | ||
1250 | ps_mode->mode = | ||
1251 | cpu_to_le16(adapter->enhanced_ps_mode); | ||
1252 | |||
1253 | } | ||
1254 | if (ps_bitmap & BITMAP_AUTO_DS) { | ||
1255 | struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv = | ||
1256 | (struct mwifiex_ie_types_auto_ds_param *) tlv; | ||
1257 | u16 idletime = 0; | ||
1258 | |||
1259 | auto_ds_tlv->header.type = | ||
1260 | cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM); | ||
1261 | auto_ds_tlv->header.len = | ||
1262 | cpu_to_le16(sizeof(*auto_ds_tlv) - | ||
1263 | sizeof(struct mwifiex_ie_types_header)); | ||
1264 | cmd_size += sizeof(*auto_ds_tlv); | ||
1265 | tlv += sizeof(*auto_ds_tlv); | ||
1266 | if (data_buf) | ||
1267 | idletime = ((struct mwifiex_ds_auto_ds *) | ||
1268 | data_buf)->idle_time; | ||
1269 | dev_dbg(priv->adapter->dev, | ||
1270 | "cmd: PS Command: Enter Auto Deep Sleep\n"); | ||
1271 | auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime); | ||
1272 | } | ||
1273 | cmd->size = cpu_to_le16(cmd_size); | ||
1274 | } | ||
1275 | return 0; | ||
1276 | } | ||
1277 | |||
1278 | /* | ||
1279 | * This function handles the command response of an enhanced power mode | ||
1280 | * command. | ||
1281 | * | ||
1282 | * Handling includes changing the header fields into CPU format | ||
1283 | * and setting the current enhanced power mode in driver. | ||
1284 | */ | ||
1285 | int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv, | ||
1286 | struct host_cmd_ds_command *resp, | ||
1287 | void *data_buf) | ||
1288 | { | ||
1289 | struct mwifiex_adapter *adapter = priv->adapter; | ||
1290 | struct host_cmd_ds_802_11_ps_mode_enh *ps_mode = | ||
1291 | &resp->params.psmode_enh; | ||
1292 | uint16_t action = le16_to_cpu(ps_mode->action); | ||
1293 | uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap); | ||
1294 | uint16_t auto_ps_bitmap = | ||
1295 | le16_to_cpu(ps_mode->params.ps_bitmap); | ||
1296 | |||
1297 | dev_dbg(adapter->dev, "info: %s: PS_MODE cmd reply result=%#x action=%#X\n", | ||
1298 | __func__, resp->result, action); | ||
1299 | if (action == EN_AUTO_PS) { | ||
1300 | if (auto_ps_bitmap & BITMAP_AUTO_DS) { | ||
1301 | dev_dbg(adapter->dev, "cmd: Enabled auto deep sleep\n"); | ||
1302 | priv->adapter->is_deep_sleep = true; | ||
1303 | } | ||
1304 | if (auto_ps_bitmap & BITMAP_STA_PS) { | ||
1305 | dev_dbg(adapter->dev, "cmd: Enabled STA power save\n"); | ||
1306 | if (adapter->sleep_period.period) | ||
1307 | dev_dbg(adapter->dev, "cmd: set to uapsd/pps mode\n"); | ||
1308 | } | ||
1309 | } else if (action == DIS_AUTO_PS) { | ||
1310 | if (ps_bitmap & BITMAP_AUTO_DS) { | ||
1311 | priv->adapter->is_deep_sleep = false; | ||
1312 | dev_dbg(adapter->dev, "cmd: Disabled auto deep sleep\n"); | ||
1313 | } | ||
1314 | if (ps_bitmap & BITMAP_STA_PS) { | ||
1315 | dev_dbg(adapter->dev, "cmd: Disabled STA power save\n"); | ||
1316 | if (adapter->sleep_period.period) { | ||
1317 | adapter->delay_null_pkt = false; | ||
1318 | adapter->tx_lock_flag = false; | ||
1319 | adapter->pps_uapsd_mode = false; | ||
1320 | } | ||
1321 | } | ||
1322 | } else if (action == GET_PS) { | ||
1323 | if (ps_bitmap & BITMAP_STA_PS) | ||
1324 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP; | ||
1325 | else | ||
1326 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; | ||
1327 | |||
1328 | dev_dbg(adapter->dev, "cmd: ps_bitmap=%#x\n", ps_bitmap); | ||
1329 | |||
1330 | if (data_buf) { | ||
1331 | /* This section is for get power save mode */ | ||
1332 | struct mwifiex_ds_pm_cfg *pm_cfg = | ||
1333 | (struct mwifiex_ds_pm_cfg *)data_buf; | ||
1334 | if (ps_bitmap & BITMAP_STA_PS) | ||
1335 | pm_cfg->param.ps_mode = 1; | ||
1336 | else | ||
1337 | pm_cfg->param.ps_mode = 0; | ||
1338 | } | ||
1339 | } | ||
1340 | return 0; | ||
1341 | } | ||
1342 | |||
1343 | /* | ||
1344 | * This function prepares command to get hardware specifications. | ||
1345 | * | ||
1346 | * Preparation includes - | ||
1347 | * - Setting command ID, action and proper size | ||
1348 | * - Setting permanent address parameter | ||
1349 | * - Ensuring correct endian-ness | ||
1350 | */ | ||
1351 | int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv, | ||
1352 | struct host_cmd_ds_command *cmd) | ||
1353 | { | ||
1354 | struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec; | ||
1355 | |||
1356 | cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC); | ||
1357 | cmd->size = | ||
1358 | cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN); | ||
1359 | memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN); | ||
1360 | |||
1361 | return 0; | ||
1362 | } | ||
1363 | |||
1364 | /* | ||
1365 | * This function handles the command response of get hardware | ||
1366 | * specifications. | ||
1367 | * | ||
1368 | * Handling includes changing the header fields into CPU format | ||
1369 | * and saving/updating the following parameters in driver - | ||
1370 | * - Firmware capability information | ||
1371 | * - Firmware band settings | ||
1372 | * - Ad-hoc start band and channel | ||
1373 | * - Ad-hoc 11n activation status | ||
1374 | * - Firmware release number | ||
1375 | * - Number of antennas | ||
1376 | * - Hardware address | ||
1377 | * - Hardware interface version | ||
1378 | * - Firmware version | ||
1379 | * - Region code | ||
1380 | * - 11n capabilities | ||
1381 | * - MCS support fields | ||
1382 | * - MP end port | ||
1383 | */ | ||
1384 | int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv, | ||
1385 | struct host_cmd_ds_command *resp) | ||
1386 | { | ||
1387 | struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec; | ||
1388 | struct mwifiex_adapter *adapter = priv->adapter; | ||
1389 | int i; | ||
1390 | |||
1391 | adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info); | ||
1392 | |||
1393 | if (IS_SUPPORT_MULTI_BANDS(adapter)) | ||
1394 | adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter); | ||
1395 | else | ||
1396 | adapter->fw_bands = BAND_B; | ||
1397 | |||
1398 | adapter->config_bands = adapter->fw_bands; | ||
1399 | |||
1400 | if (adapter->fw_bands & BAND_A) { | ||
1401 | if (adapter->fw_bands & BAND_GN) { | ||
1402 | adapter->config_bands |= BAND_AN; | ||
1403 | adapter->fw_bands |= BAND_AN; | ||
1404 | } | ||
1405 | if (adapter->fw_bands & BAND_AN) { | ||
1406 | adapter->adhoc_start_band = BAND_A | BAND_AN; | ||
1407 | adapter->adhoc_11n_enabled = true; | ||
1408 | } else { | ||
1409 | adapter->adhoc_start_band = BAND_A; | ||
1410 | } | ||
1411 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A; | ||
1412 | } else if (adapter->fw_bands & BAND_GN) { | ||
1413 | adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN; | ||
1414 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; | ||
1415 | adapter->adhoc_11n_enabled = true; | ||
1416 | } else if (adapter->fw_bands & BAND_G) { | ||
1417 | adapter->adhoc_start_band = BAND_G | BAND_B; | ||
1418 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; | ||
1419 | } else if (adapter->fw_bands & BAND_B) { | ||
1420 | adapter->adhoc_start_band = BAND_B; | ||
1421 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; | ||
1422 | } | ||
1423 | |||
1424 | adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number); | ||
1425 | adapter->number_of_antenna = le16_to_cpu(hw_spec->number_of_antenna); | ||
1426 | |||
1427 | dev_dbg(adapter->dev, "info: GET_HW_SPEC: fw_release_number- %#x\n", | ||
1428 | adapter->fw_release_number); | ||
1429 | dev_dbg(adapter->dev, "info: GET_HW_SPEC: permanent addr: %pM\n", | ||
1430 | hw_spec->permanent_addr); | ||
1431 | dev_dbg(adapter->dev, "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n", | ||
1432 | le16_to_cpu(hw_spec->hw_if_version), | ||
1433 | le16_to_cpu(hw_spec->version)); | ||
1434 | |||
1435 | if (priv->curr_addr[0] == 0xff) | ||
1436 | memmove(priv->curr_addr, hw_spec->permanent_addr, ETH_ALEN); | ||
1437 | |||
1438 | adapter->region_code = le16_to_cpu(hw_spec->region_code); | ||
1439 | |||
1440 | for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++) | ||
1441 | /* Use the region code to search for the index */ | ||
1442 | if (adapter->region_code == region_code_index[i]) | ||
1443 | break; | ||
1444 | |||
1445 | /* If it's unidentified region code, use the default (USA) */ | ||
1446 | if (i >= MWIFIEX_MAX_REGION_CODE) { | ||
1447 | adapter->region_code = 0x10; | ||
1448 | dev_dbg(adapter->dev, "cmd: unknown region code, use default (USA)\n"); | ||
1449 | } | ||
1450 | |||
1451 | adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap); | ||
1452 | adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support; | ||
1453 | |||
1454 | if (adapter->if_ops.update_mp_end_port) | ||
1455 | adapter->if_ops.update_mp_end_port(adapter, | ||
1456 | le16_to_cpu(hw_spec->mp_end_port)); | ||
1457 | |||
1458 | return 0; | ||
1459 | } | ||