/drivers/net/wireless/mwifiex/cmdevt.c
C | 1414 lines | 955 code | 169 blank | 290 comment | 172 complexity | 2016c3733e995c55afcf637b807b2c36 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
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 */
36static void
37mwifiex_init_cmd_node(struct mwifiex_private *priv,
38 struct cmd_ctrl_node *cmd_node,
39 u32 cmd_oid, void *data_buf)
40{
41 cmd_node->priv = priv;
42 cmd_node->cmd_oid = cmd_oid;
43 cmd_node->wait_q_enabled = priv->adapter->cmd_wait_q_required;
44 priv->adapter->cmd_wait_q_required = false;
45 cmd_node->data_buf = data_buf;
46 cmd_node->cmd_skb = cmd_node->skb;
47}
48
49/*
50 * This function returns a command node from the free queue depending upon
51 * availability.
52 */
53static struct cmd_ctrl_node *
54mwifiex_get_cmd_node(struct mwifiex_adapter *adapter)
55{
56 struct cmd_ctrl_node *cmd_node;
57 unsigned long flags;
58
59 spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
60 if (list_empty(&adapter->cmd_free_q)) {
61 dev_err(adapter->dev, "GET_CMD_NODE: cmd node not available\n");
62 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
63 return NULL;
64 }
65 cmd_node = list_first_entry(&adapter->cmd_free_q,
66 struct cmd_ctrl_node, list);
67 list_del(&cmd_node->list);
68 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
69
70 return cmd_node;
71}
72
73/*
74 * This function cleans up a command node.
75 *
76 * The function resets the fields including the buffer pointers.
77 * This function does not try to free the buffers. They must be
78 * freed before calling this function.
79 *
80 * This function will however call the receive completion callback
81 * in case a response buffer is still available before resetting
82 * the pointer.
83 */
84static void
85mwifiex_clean_cmd_node(struct mwifiex_adapter *adapter,
86 struct cmd_ctrl_node *cmd_node)
87{
88 cmd_node->cmd_oid = 0;
89 cmd_node->cmd_flag = 0;
90 cmd_node->data_buf = NULL;
91 cmd_node->wait_q_enabled = false;
92
93 if (cmd_node->resp_skb) {
94 dev_kfree_skb_any(cmd_node->resp_skb);
95 cmd_node->resp_skb = NULL;
96 }
97}
98
99/*
100 * This function sends a host command to the firmware.
101 *
102 * The function copies the host command into the driver command
103 * buffer, which will be transferred to the firmware later by the
104 * main thread.
105 */
106static int mwifiex_cmd_host_cmd(struct mwifiex_private *priv,
107 struct host_cmd_ds_command *cmd, void *data_buf)
108{
109 struct mwifiex_ds_misc_cmd *pcmd_ptr =
110 (struct mwifiex_ds_misc_cmd *) data_buf;
111
112 /* Copy the HOST command to command buffer */
113 memcpy((void *) cmd, pcmd_ptr->cmd, pcmd_ptr->len);
114 dev_dbg(priv->adapter->dev, "cmd: host cmd size = %d\n", pcmd_ptr->len);
115 return 0;
116}
117
118/*
119 * This function downloads a command to the firmware.
120 *
121 * The function performs sanity tests, sets the command sequence
122 * number and size, converts the header fields to CPU format before
123 * sending. Afterwards, it logs the command ID and action for debugging
124 * and sets up the command timeout timer.
125 */
126static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
127 struct cmd_ctrl_node *cmd_node)
128{
129
130 struct mwifiex_adapter *adapter = priv->adapter;
131 int ret;
132 struct host_cmd_ds_command *host_cmd;
133 uint16_t cmd_code;
134 uint16_t cmd_size;
135 struct timeval tstamp;
136 unsigned long flags;
137
138 if (!adapter || !cmd_node)
139 return -1;
140
141 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
142
143 /* Sanity test */
144 if (host_cmd == NULL || host_cmd->size == 0) {
145 dev_err(adapter->dev, "DNLD_CMD: host_cmd is null"
146 " or cmd size is 0, not sending\n");
147 if (cmd_node->wait_q_enabled)
148 adapter->cmd_wait_q.status = -1;
149 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
150 return -1;
151 }
152
153 /* Set command sequence number */
154 adapter->seq_num++;
155 host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
156 (adapter->seq_num, cmd_node->priv->bss_num,
157 cmd_node->priv->bss_type));
158
159 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
160 adapter->curr_cmd = cmd_node;
161 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
162
163 cmd_code = le16_to_cpu(host_cmd->command);
164 cmd_size = le16_to_cpu(host_cmd->size);
165
166 skb_trim(cmd_node->cmd_skb, cmd_size);
167
168 do_gettimeofday(&tstamp);
169 dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"
170 " seqno %#x\n",
171 tstamp.tv_sec, tstamp.tv_usec, cmd_code,
172 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)), cmd_size,
173 le16_to_cpu(host_cmd->seq_num));
174
175 skb_push(cmd_node->cmd_skb, INTF_HEADER_LEN);
176
177 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
178 cmd_node->cmd_skb->data,
179 cmd_node->cmd_skb->len, NULL);
180
181 skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN);
182
183 if (ret == -1) {
184 dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
185 if (cmd_node->wait_q_enabled)
186 adapter->cmd_wait_q.status = -1;
187 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
188
189 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
190 adapter->curr_cmd = NULL;
191 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
192
193 adapter->dbg.num_cmd_host_to_card_failure++;
194 return -1;
195 }
196
197 /* Save the last command id and action to debug log */
198 adapter->dbg.last_cmd_index =
199 (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM;
200 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code;
201 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] =
202 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN));
203
204 /* Clear BSS_NO_BITS from HostCmd */
205 cmd_code &= HostCmd_CMD_ID_MASK;
206
207 /* Setup the timer after transmit command */
208 mod_timer(&adapter->cmd_timer,
209 jiffies + (MWIFIEX_TIMER_10S * HZ) / 1000);
210
211 return 0;
212}
213
214/*
215 * This function downloads a sleep confirm command to the firmware.
216 *
217 * The function performs sanity tests, sets the command sequence
218 * number and size, converts the header fields to CPU format before
219 * sending.
220 *
221 * No responses are needed for sleep confirm command.
222 */
223static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter)
224{
225 int ret;
226 struct mwifiex_private *priv;
227 struct mwifiex_opt_sleep_confirm *sleep_cfm_buf =
228 (struct mwifiex_opt_sleep_confirm *)
229 adapter->sleep_cfm->data;
230 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
231
232 sleep_cfm_buf->seq_num =
233 cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
234 (adapter->seq_num, priv->bss_num,
235 priv->bss_type)));
236 adapter->seq_num++;
237
238 skb_push(adapter->sleep_cfm, INTF_HEADER_LEN);
239 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
240 adapter->sleep_cfm->data,
241 adapter->sleep_cfm->len, NULL);
242 skb_pull(adapter->sleep_cfm, INTF_HEADER_LEN);
243
244 if (ret == -1) {
245 dev_err(adapter->dev, "SLEEP_CFM: failed\n");
246 adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++;
247 return -1;
248 }
249 if (GET_BSS_ROLE(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY))
250 == MWIFIEX_BSS_ROLE_STA) {
251 if (!sleep_cfm_buf->resp_ctrl)
252 /* Response is not needed for sleep
253 confirm command */
254 adapter->ps_state = PS_STATE_SLEEP;
255 else
256 adapter->ps_state = PS_STATE_SLEEP_CFM;
257
258 if (!sleep_cfm_buf->resp_ctrl
259 && (adapter->is_hs_configured
260 && !adapter->sleep_period.period)) {
261 adapter->pm_wakeup_card_req = true;
262 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
263 MWIFIEX_BSS_ROLE_STA), true);
264 }
265 }
266
267 return ret;
268}
269
270/*
271 * This function allocates the command buffers and links them to
272 * the command free queue.
273 *
274 * The driver uses a pre allocated number of command buffers, which
275 * are created at driver initializations and freed at driver cleanup.
276 * Every command needs to obtain a command buffer from this pool before
277 * it can be issued. The command free queue lists the command buffers
278 * currently free to use, while the command pending queue lists the
279 * command buffers already in use and awaiting handling. Command buffers
280 * are returned to the free queue after use.
281 */
282int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter)
283{
284 struct cmd_ctrl_node *cmd_array;
285 u32 buf_size;
286 u32 i;
287
288 /* Allocate and initialize struct cmd_ctrl_node */
289 buf_size = sizeof(struct cmd_ctrl_node) * MWIFIEX_NUM_OF_CMD_BUFFER;
290 cmd_array = kzalloc(buf_size, GFP_KERNEL);
291 if (!cmd_array) {
292 dev_err(adapter->dev, "%s: failed to alloc cmd_array\n",
293 __func__);
294 return -ENOMEM;
295 }
296
297 adapter->cmd_pool = cmd_array;
298 memset(adapter->cmd_pool, 0, buf_size);
299
300 /* Allocate and initialize command buffers */
301 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
302 cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER);
303 if (!cmd_array[i].skb) {
304 dev_err(adapter->dev, "ALLOC_CMD_BUF: out of memory\n");
305 return -1;
306 }
307 }
308
309 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++)
310 mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]);
311
312 return 0;
313}
314
315/*
316 * This function frees the command buffers.
317 *
318 * The function calls the completion callback for all the command
319 * buffers that still have response buffers associated with them.
320 */
321int mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter)
322{
323 struct cmd_ctrl_node *cmd_array;
324 u32 i;
325
326 /* Need to check if cmd pool is allocated or not */
327 if (!adapter->cmd_pool) {
328 dev_dbg(adapter->dev, "info: FREE_CMD_BUF: cmd_pool is null\n");
329 return 0;
330 }
331
332 cmd_array = adapter->cmd_pool;
333
334 /* Release shared memory buffers */
335 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
336 if (cmd_array[i].skb) {
337 dev_dbg(adapter->dev, "cmd: free cmd buffer %d\n", i);
338 dev_kfree_skb_any(cmd_array[i].skb);
339 }
340 if (!cmd_array[i].resp_skb)
341 continue;
342 dev_kfree_skb_any(cmd_array[i].resp_skb);
343 }
344 /* Release struct cmd_ctrl_node */
345 if (adapter->cmd_pool) {
346 dev_dbg(adapter->dev, "cmd: free cmd pool\n");
347 kfree(adapter->cmd_pool);
348 adapter->cmd_pool = NULL;
349 }
350
351 return 0;
352}
353
354/*
355 * This function handles events generated by firmware.
356 *
357 * Event body of events received from firmware are not used (though they are
358 * saved), only the event ID is used. Some events are re-invoked by
359 * the driver, with a new event body.
360 *
361 * After processing, the function calls the completion callback
362 * for cleanup.
363 */
364int mwifiex_process_event(struct mwifiex_adapter *adapter)
365{
366 int ret;
367 struct mwifiex_private *priv =
368 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
369 struct sk_buff *skb = adapter->event_skb;
370 u32 eventcause = adapter->event_cause;
371 struct timeval tstamp;
372 struct mwifiex_rxinfo *rx_info;
373
374 /* Save the last event to debug log */
375 adapter->dbg.last_event_index =
376 (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM;
377 adapter->dbg.last_event[adapter->dbg.last_event_index] =
378 (u16) eventcause;
379
380 /* Get BSS number and corresponding priv */
381 priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause),
382 EVENT_GET_BSS_TYPE(eventcause));
383 if (!priv)
384 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
385 /* Clear BSS_NO_BITS from event */
386 eventcause &= EVENT_ID_MASK;
387 adapter->event_cause = eventcause;
388
389 if (skb) {
390 rx_info = MWIFIEX_SKB_RXCB(skb);
391 rx_info->bss_index = priv->bss_index;
392 }
393
394 if (eventcause != EVENT_PS_SLEEP && eventcause != EVENT_PS_AWAKE) {
395 do_gettimeofday(&tstamp);
396 dev_dbg(adapter->dev, "event: %lu.%lu: cause: %#x\n",
397 tstamp.tv_sec, tstamp.tv_usec, eventcause);
398 }
399
400 ret = mwifiex_process_sta_event(priv);
401
402 adapter->event_cause = 0;
403 adapter->event_skb = NULL;
404
405 dev_kfree_skb_any(skb);
406
407 return ret;
408}
409
410/*
411 * This function is used to send synchronous command to the firmware.
412 *
413 * it allocates a wait queue for the command and wait for the command
414 * response.
415 */
416int mwifiex_send_cmd_sync(struct mwifiex_private *priv, uint16_t cmd_no,
417 u16 cmd_action, u32 cmd_oid, void *data_buf)
418{
419 int ret = 0;
420 struct mwifiex_adapter *adapter = priv->adapter;
421
422 adapter->cmd_wait_q_required = true;
423 adapter->cmd_wait_q.condition = false;
424
425 ret = mwifiex_send_cmd_async(priv, cmd_no, cmd_action, cmd_oid,
426 data_buf);
427 if (!ret)
428 ret = mwifiex_wait_queue_complete(adapter);
429
430 return ret;
431}
432
433
434/*
435 * This function prepares a command and asynchronously send it to the firmware.
436 *
437 * Preparation includes -
438 * - Sanity tests to make sure the card is still present or the FW
439 * is not reset
440 * - Getting a new command node from the command free queue
441 * - Initializing the command node for default parameters
442 * - Fill up the non-default parameters and buffer pointers
443 * - Add the command to pending queue
444 */
445int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no,
446 u16 cmd_action, u32 cmd_oid, void *data_buf)
447{
448 int ret;
449 struct mwifiex_adapter *adapter = priv->adapter;
450 struct cmd_ctrl_node *cmd_node;
451 struct host_cmd_ds_command *cmd_ptr;
452
453 if (!adapter) {
454 pr_err("PREP_CMD: adapter is NULL\n");
455 return -1;
456 }
457
458 if (adapter->is_suspended) {
459 dev_err(adapter->dev, "PREP_CMD: device in suspended state\n");
460 return -1;
461 }
462
463 if (adapter->surprise_removed) {
464 dev_err(adapter->dev, "PREP_CMD: card is removed\n");
465 return -1;
466 }
467
468 if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) {
469 if (cmd_no != HostCmd_CMD_FUNC_INIT) {
470 dev_err(adapter->dev, "PREP_CMD: FW in reset state\n");
471 return -1;
472 }
473 }
474
475 /* Get a new command node */
476 cmd_node = mwifiex_get_cmd_node(adapter);
477
478 if (!cmd_node) {
479 dev_err(adapter->dev, "PREP_CMD: no free cmd node\n");
480 return -1;
481 }
482
483 /* Initialize the command node */
484 mwifiex_init_cmd_node(priv, cmd_node, cmd_oid, data_buf);
485
486 if (!cmd_node->cmd_skb) {
487 dev_err(adapter->dev, "PREP_CMD: no free cmd buf\n");
488 return -1;
489 }
490
491 memset(skb_put(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)),
492 0, sizeof(struct host_cmd_ds_command));
493
494 cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
495 cmd_ptr->command = cpu_to_le16(cmd_no);
496 cmd_ptr->result = 0;
497
498 /* Prepare command */
499 if (cmd_no) {
500 ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action,
501 cmd_oid, data_buf, cmd_ptr);
502 } else {
503 ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf);
504 cmd_node->cmd_flag |= CMD_F_HOSTCMD;
505 }
506
507 /* Return error, since the command preparation failed */
508 if (ret) {
509 dev_err(adapter->dev, "PREP_CMD: cmd %#x preparation failed\n",
510 cmd_no);
511 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
512 return -1;
513 }
514
515 /* Send command */
516 if (cmd_no == HostCmd_CMD_802_11_SCAN)
517 mwifiex_queue_scan_cmd(priv, cmd_node);
518 else
519 mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
520
521 return ret;
522}
523
524/*
525 * This function returns a command to the command free queue.
526 *
527 * The function also calls the completion callback if required, before
528 * cleaning the command node and re-inserting it into the free queue.
529 */
530void
531mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter,
532 struct cmd_ctrl_node *cmd_node)
533{
534 unsigned long flags;
535
536 if (!cmd_node)
537 return;
538
539 if (cmd_node->wait_q_enabled)
540 mwifiex_complete_cmd(adapter);
541 /* Clean the node */
542 mwifiex_clean_cmd_node(adapter, cmd_node);
543
544 /* Insert node into cmd_free_q */
545 spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
546 list_add_tail(&cmd_node->list, &adapter->cmd_free_q);
547 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
548}
549
550/*
551 * This function queues a command to the command pending queue.
552 *
553 * This in effect adds the command to the command list to be executed.
554 * Exit PS command is handled specially, by placing it always to the
555 * front of the command queue.
556 */
557void
558mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter,
559 struct cmd_ctrl_node *cmd_node, u32 add_tail)
560{
561 struct host_cmd_ds_command *host_cmd = NULL;
562 u16 command;
563 unsigned long flags;
564
565 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
566 if (!host_cmd) {
567 dev_err(adapter->dev, "QUEUE_CMD: host_cmd is NULL\n");
568 return;
569 }
570
571 command = le16_to_cpu(host_cmd->command);
572
573 /* Exit_PS command needs to be queued in the header always. */
574 if (command == HostCmd_CMD_802_11_PS_MODE_ENH) {
575 struct host_cmd_ds_802_11_ps_mode_enh *pm =
576 &host_cmd->params.psmode_enh;
577 if ((le16_to_cpu(pm->action) == DIS_PS)
578 || (le16_to_cpu(pm->action) == DIS_AUTO_PS)) {
579 if (adapter->ps_state != PS_STATE_AWAKE)
580 add_tail = false;
581 }
582 }
583
584 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
585 if (add_tail)
586 list_add_tail(&cmd_node->list, &adapter->cmd_pending_q);
587 else
588 list_add(&cmd_node->list, &adapter->cmd_pending_q);
589 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
590
591 dev_dbg(adapter->dev, "cmd: QUEUE_CMD: cmd=%#x is queued\n", command);
592}
593
594/*
595 * This function executes the next command in command pending queue.
596 *
597 * This function will fail if a command is already in processing stage,
598 * otherwise it will dequeue the first command from the command pending
599 * queue and send to the firmware.
600 *
601 * If the device is currently in host sleep mode, any commands, except the
602 * host sleep configuration command will de-activate the host sleep. For PS
603 * mode, the function will put the firmware back to sleep if applicable.
604 */
605int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter)
606{
607 struct mwifiex_private *priv;
608 struct cmd_ctrl_node *cmd_node;
609 int ret = 0;
610 struct host_cmd_ds_command *host_cmd;
611 unsigned long cmd_flags;
612 unsigned long cmd_pending_q_flags;
613
614 /* Check if already in processing */
615 if (adapter->curr_cmd) {
616 dev_err(adapter->dev, "EXEC_NEXT_CMD: cmd in processing\n");
617 return -1;
618 }
619
620 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
621 /* Check if any command is pending */
622 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
623 if (list_empty(&adapter->cmd_pending_q)) {
624 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
625 cmd_pending_q_flags);
626 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
627 return 0;
628 }
629 cmd_node = list_first_entry(&adapter->cmd_pending_q,
630 struct cmd_ctrl_node, list);
631 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
632 cmd_pending_q_flags);
633
634 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
635 priv = cmd_node->priv;
636
637 if (adapter->ps_state != PS_STATE_AWAKE) {
638 dev_err(adapter->dev, "%s: cannot send cmd in sleep state,"
639 " this should not happen\n", __func__);
640 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
641 return ret;
642 }
643
644 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
645 list_del(&cmd_node->list);
646 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
647 cmd_pending_q_flags);
648
649 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
650 ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node);
651 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
652 /* Any command sent to the firmware when host is in sleep
653 * mode should de-configure host sleep. We should skip the
654 * host sleep configuration command itself though
655 */
656 if (priv && (host_cmd->command !=
657 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) {
658 if (adapter->hs_activated) {
659 adapter->is_hs_configured = false;
660 mwifiex_hs_activated_event(priv, false);
661 }
662 }
663
664 return ret;
665}
666
667/*
668 * This function handles the command response.
669 *
670 * After processing, the function cleans the command node and puts
671 * it back to the command free queue.
672 */
673int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
674{
675 struct host_cmd_ds_command *resp;
676 struct mwifiex_private *priv =
677 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
678 int ret = 0;
679 uint16_t orig_cmdresp_no;
680 uint16_t cmdresp_no;
681 uint16_t cmdresp_result;
682 struct timeval tstamp;
683 unsigned long flags;
684
685 /* Now we got response from FW, cancel the command timer */
686 del_timer(&adapter->cmd_timer);
687
688 if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) {
689 resp = (struct host_cmd_ds_command *) adapter->upld_buf;
690 dev_err(adapter->dev, "CMD_RESP: NULL curr_cmd, %#x\n",
691 le16_to_cpu(resp->command));
692 return -1;
693 }
694
695 adapter->num_cmd_timeout = 0;
696
697 resp = (struct host_cmd_ds_command *) adapter->curr_cmd->resp_skb->data;
698 if (adapter->curr_cmd->cmd_flag & CMD_F_CANCELED) {
699 dev_err(adapter->dev, "CMD_RESP: %#x been canceled\n",
700 le16_to_cpu(resp->command));
701 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
702 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
703 adapter->curr_cmd = NULL;
704 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
705 return -1;
706 }
707
708 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
709 /* Copy original response back to response buffer */
710 struct mwifiex_ds_misc_cmd *hostcmd = NULL;
711 uint16_t size = le16_to_cpu(resp->size);
712 dev_dbg(adapter->dev, "info: host cmd resp size = %d\n", size);
713 size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER);
714 if (adapter->curr_cmd->data_buf) {
715 hostcmd = (struct mwifiex_ds_misc_cmd *)
716 adapter->curr_cmd->data_buf;
717 hostcmd->len = size;
718 memcpy(hostcmd->cmd, (void *) resp, size);
719 }
720 }
721 orig_cmdresp_no = le16_to_cpu(resp->command);
722
723 /* Get BSS number and corresponding priv */
724 priv = mwifiex_get_priv_by_id(adapter,
725 HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)),
726 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num)));
727 if (!priv)
728 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
729 /* Clear RET_BIT from HostCmd */
730 resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK);
731
732 cmdresp_no = le16_to_cpu(resp->command);
733 cmdresp_result = le16_to_cpu(resp->result);
734
735 /* Save the last command response to debug log */
736 adapter->dbg.last_cmd_resp_index =
737 (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM;
738 adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] =
739 orig_cmdresp_no;
740
741 do_gettimeofday(&tstamp);
742 dev_dbg(adapter->dev, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
743 " len %d, seqno 0x%x\n",
744 tstamp.tv_sec, tstamp.tv_usec, orig_cmdresp_no, cmdresp_result,
745 le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num));
746
747 if (!(orig_cmdresp_no & HostCmd_RET_BIT)) {
748 dev_err(adapter->dev, "CMD_RESP: invalid cmd resp\n");
749 if (adapter->curr_cmd->wait_q_enabled)
750 adapter->cmd_wait_q.status = -1;
751
752 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
753 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
754 adapter->curr_cmd = NULL;
755 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
756 return -1;
757 }
758
759 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
760 adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD;
761 if ((cmdresp_result == HostCmd_RESULT_OK)
762 && (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH))
763 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
764 } else {
765 /* handle response */
766 ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp);
767 }
768
769 /* Check init command response */
770 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) {
771 if (ret == -1) {
772 dev_err(adapter->dev, "%s: cmd %#x failed during "
773 "initialization\n", __func__, cmdresp_no);
774 mwifiex_init_fw_complete(adapter);
775 return -1;
776 } else if (adapter->last_init_cmd == cmdresp_no)
777 adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE;
778 }
779
780 if (adapter->curr_cmd) {
781 if (adapter->curr_cmd->wait_q_enabled && (!ret))
782 adapter->cmd_wait_q.status = 0;
783 else if (adapter->curr_cmd->wait_q_enabled && (ret == -1))
784 adapter->cmd_wait_q.status = -1;
785
786 /* Clean up and put current command back to cmd_free_q */
787 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
788
789 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
790 adapter->curr_cmd = NULL;
791 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
792 }
793
794 return ret;
795}
796
797/*
798 * This function handles the timeout of command sending.
799 *
800 * It will re-send the same command again.
801 */
802void
803mwifiex_cmd_timeout_func(unsigned long function_context)
804{
805 struct mwifiex_adapter *adapter =
806 (struct mwifiex_adapter *) function_context;
807 struct cmd_ctrl_node *cmd_node;
808 struct timeval tstamp;
809
810 adapter->num_cmd_timeout++;
811 adapter->dbg.num_cmd_timeout++;
812 if (!adapter->curr_cmd) {
813 dev_dbg(adapter->dev, "cmd: empty curr_cmd\n");
814 return;
815 }
816 cmd_node = adapter->curr_cmd;
817 if (cmd_node->wait_q_enabled)
818 adapter->cmd_wait_q.status = -ETIMEDOUT;
819
820 if (cmd_node) {
821 adapter->dbg.timeout_cmd_id =
822 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index];
823 adapter->dbg.timeout_cmd_act =
824 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index];
825 do_gettimeofday(&tstamp);
826 dev_err(adapter->dev, "%s: Timeout cmd id (%lu.%lu) = %#x,"
827 " act = %#x\n", __func__,
828 tstamp.tv_sec, tstamp.tv_usec,
829 adapter->dbg.timeout_cmd_id,
830 adapter->dbg.timeout_cmd_act);
831
832 dev_err(adapter->dev, "num_data_h2c_failure = %d\n",
833 adapter->dbg.num_tx_host_to_card_failure);
834 dev_err(adapter->dev, "num_cmd_h2c_failure = %d\n",
835 adapter->dbg.num_cmd_host_to_card_failure);
836
837 dev_err(adapter->dev, "num_cmd_timeout = %d\n",
838 adapter->dbg.num_cmd_timeout);
839 dev_err(adapter->dev, "num_tx_timeout = %d\n",
840 adapter->dbg.num_tx_timeout);
841
842 dev_err(adapter->dev, "last_cmd_index = %d\n",
843 adapter->dbg.last_cmd_index);
844 print_hex_dump_bytes("last_cmd_id: ", DUMP_PREFIX_OFFSET,
845 adapter->dbg.last_cmd_id, DBG_CMD_NUM);
846 print_hex_dump_bytes("last_cmd_act: ", DUMP_PREFIX_OFFSET,
847 adapter->dbg.last_cmd_act, DBG_CMD_NUM);
848
849 dev_err(adapter->dev, "last_cmd_resp_index = %d\n",
850 adapter->dbg.last_cmd_resp_index);
851 print_hex_dump_bytes("last_cmd_resp_id: ", DUMP_PREFIX_OFFSET,
852 adapter->dbg.last_cmd_resp_id, DBG_CMD_NUM);
853
854 dev_err(adapter->dev, "last_event_index = %d\n",
855 adapter->dbg.last_event_index);
856 print_hex_dump_bytes("last_event: ", DUMP_PREFIX_OFFSET,
857 adapter->dbg.last_event, DBG_CMD_NUM);
858
859 dev_err(adapter->dev, "data_sent=%d cmd_sent=%d\n",
860 adapter->data_sent, adapter->cmd_sent);
861
862 dev_err(adapter->dev, "ps_mode=%d ps_state=%d\n",
863 adapter->ps_mode, adapter->ps_state);
864 }
865 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
866 mwifiex_init_fw_complete(adapter);
867}
868
869/*
870 * This function cancels all the pending commands.
871 *
872 * The current command, all commands in command pending queue and all scan
873 * commands in scan pending queue are cancelled. All the completion callbacks
874 * are called with failure status to ensure cleanup.
875 */
876void
877mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter)
878{
879 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
880 unsigned long flags;
881
882 /* Cancel current cmd */
883 if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) {
884 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
885 adapter->curr_cmd->wait_q_enabled = false;
886 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
887 adapter->cmd_wait_q.status = -1;
888 mwifiex_complete_cmd(adapter);
889 }
890 /* Cancel all pending command */
891 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
892 list_for_each_entry_safe(cmd_node, tmp_node,
893 &adapter->cmd_pending_q, list) {
894 list_del(&cmd_node->list);
895 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
896
897 if (cmd_node->wait_q_enabled) {
898 adapter->cmd_wait_q.status = -1;
899 mwifiex_complete_cmd(adapter);
900 cmd_node->wait_q_enabled = false;
901 }
902 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
903 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
904 }
905 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
906
907 /* Cancel all pending scan command */
908 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
909 list_for_each_entry_safe(cmd_node, tmp_node,
910 &adapter->scan_pending_q, list) {
911 list_del(&cmd_node->list);
912 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
913
914 cmd_node->wait_q_enabled = false;
915 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
916 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
917 }
918 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
919
920 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
921 adapter->scan_processing = false;
922 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
923}
924
925/*
926 * This function cancels all pending commands that matches with
927 * the given IOCTL request.
928 *
929 * Both the current command buffer and the pending command queue are
930 * searched for matching IOCTL request. The completion callback of
931 * the matched command is called with failure status to ensure cleanup.
932 * In case of scan commands, all pending commands in scan pending queue
933 * are cancelled.
934 */
935void
936mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
937{
938 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
939 unsigned long cmd_flags;
940 unsigned long cmd_pending_q_flags;
941 unsigned long scan_pending_q_flags;
942 uint16_t cancel_scan_cmd = false;
943
944 if ((adapter->curr_cmd) &&
945 (adapter->curr_cmd->wait_q_enabled)) {
946 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
947 cmd_node = adapter->curr_cmd;
948 cmd_node->wait_q_enabled = false;
949 cmd_node->cmd_flag |= CMD_F_CANCELED;
950 spin_lock_irqsave(&adapter->cmd_pending_q_lock,
951 cmd_pending_q_flags);
952 list_del(&cmd_node->list);
953 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
954 cmd_pending_q_flags);
955 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
956 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
957 }
958
959 /* Cancel all pending scan command */
960 spin_lock_irqsave(&adapter->scan_pending_q_lock,
961 scan_pending_q_flags);
962 list_for_each_entry_safe(cmd_node, tmp_node,
963 &adapter->scan_pending_q, list) {
964 list_del(&cmd_node->list);
965 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
966 scan_pending_q_flags);
967 cmd_node->wait_q_enabled = false;
968 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
969 spin_lock_irqsave(&adapter->scan_pending_q_lock,
970 scan_pending_q_flags);
971 cancel_scan_cmd = true;
972 }
973 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
974 scan_pending_q_flags);
975
976 if (cancel_scan_cmd) {
977 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
978 adapter->scan_processing = false;
979 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
980 }
981 adapter->cmd_wait_q.status = -1;
982 mwifiex_complete_cmd(adapter);
983}
984
985/*
986 * This function sends the sleep confirm command to firmware, if
987 * possible.
988 *
989 * The sleep confirm command cannot be issued if command response,
990 * data response or event response is awaiting handling, or if we
991 * are in the middle of sending a command, or expecting a command
992 * response.
993 */
994void
995mwifiex_check_ps_cond(struct mwifiex_adapter *adapter)
996{
997 if (!adapter->cmd_sent &&
998 !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
999 mwifiex_dnld_sleep_confirm_cmd(adapter);
1000 else
1001 dev_dbg(adapter->dev,
1002 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1003 (adapter->cmd_sent) ? "D" : "",
1004 (adapter->curr_cmd) ? "C" : "",
1005 (IS_CARD_RX_RCVD(adapter)) ? "R" : "");
1006}
1007
1008/*
1009 * This function sends a Host Sleep activated event to applications.
1010 *
1011 * This event is generated by the driver, with a blank event body.
1012 */
1013void
1014mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated)
1015{
1016 if (activated) {
1017 if (priv->adapter->is_hs_configured) {
1018 priv->adapter->hs_activated = true;
1019 dev_dbg(priv->adapter->dev, "event: hs_activated\n");
1020 priv->adapter->hs_activate_wait_q_woken = true;
1021 wake_up_interruptible(
1022 &priv->adapter->hs_activate_wait_q);
1023 } else {
1024 dev_dbg(priv->adapter->dev, "event: HS not configured\n");
1025 }
1026 } else {
1027 dev_dbg(priv->adapter->dev, "event: hs_deactivated\n");
1028 priv->adapter->hs_activated = false;
1029 }
1030}
1031
1032/*
1033 * This function handles the command response of a Host Sleep configuration
1034 * command.
1035 *
1036 * Handling includes changing the header fields into CPU format
1037 * and setting the current host sleep activation status in driver.
1038 *
1039 * In case host sleep status change, the function generates an event to
1040 * notify the applications.
1041 */
1042int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv,
1043 struct host_cmd_ds_command *resp)
1044{
1045 struct mwifiex_adapter *adapter = priv->adapter;
1046 struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg =
1047 &resp->params.opt_hs_cfg;
1048 uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions);
1049
1050 if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE)) {
1051 mwifiex_hs_activated_event(priv, true);
1052 return 0;
1053 } else {
1054 dev_dbg(adapter->dev, "cmd: CMD_RESP: HS_CFG cmd reply"
1055 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1056 resp->result, conditions,
1057 phs_cfg->params.hs_config.gpio,
1058 phs_cfg->params.hs_config.gap);
1059 }
1060 if (conditions != HOST_SLEEP_CFG_CANCEL) {
1061 adapter->is_hs_configured = true;
1062 } else {
1063 adapter->is_hs_configured = false;
1064 if (adapter->hs_activated)
1065 mwifiex_hs_activated_event(priv, false);
1066 }
1067
1068 return 0;
1069}
1070
1071/*
1072 * This function wakes up the adapter and generates a Host Sleep
1073 * cancel event on receiving the power up interrupt.
1074 */
1075void
1076mwifiex_process_hs_config(struct mwifiex_adapter *adapter)
1077{
1078 dev_dbg(adapter->dev, "info: %s: auto cancelling host sleep"
1079 " since there is interrupt from the firmware\n", __func__);
1080
1081 adapter->if_ops.wakeup(adapter);
1082 adapter->hs_activated = false;
1083 adapter->is_hs_configured = false;
1084 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
1085 MWIFIEX_BSS_ROLE_ANY), false);
1086}
1087
1088/*
1089 * This function handles the command response of a sleep confirm command.
1090 *
1091 * The function sets the card state to SLEEP if the response indicates success.
1092 */
1093void
1094mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter,
1095 u8 *pbuf, u32 upld_len)
1096{
1097 struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf;
1098 struct mwifiex_private *priv =
1099 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1100 uint16_t result = le16_to_cpu(cmd->result);
1101 uint16_t command = le16_to_cpu(cmd->command);
1102 uint16_t seq_num = le16_to_cpu(cmd->seq_num);
1103
1104 if (!upld_len) {
1105 dev_err(adapter->dev, "%s: cmd size is 0\n", __func__);
1106 return;
1107 }
1108
1109 /* Get BSS number and corresponding priv */
1110 priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num),
1111 HostCmd_GET_BSS_TYPE(seq_num));
1112 if (!priv)
1113 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1114
1115 /* Update sequence number */
1116 seq_num = HostCmd_GET_SEQ_NO(seq_num);
1117 /* Clear RET_BIT from HostCmd */
1118 command &= HostCmd_CMD_ID_MASK;
1119
1120 if (command != HostCmd_CMD_802_11_PS_MODE_ENH) {
1121 dev_err(adapter->dev, "%s: received unexpected response for"
1122 " cmd %x, result = %x\n", __func__, command, result);
1123 return;
1124 }
1125
1126 if (result) {
1127 dev_err(adapter->dev, "%s: sleep confirm cmd failed\n",
1128 __func__);
1129 adapter->pm_wakeup_card_req = false;
1130 adapter->ps_state = PS_STATE_AWAKE;
1131 return;
1132 }
1133 adapter->pm_wakeup_card_req = true;
1134 if (adapter->is_hs_configured)
1135 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
1136 MWIFIEX_BSS_ROLE_ANY), true);
1137 adapter->ps_state = PS_STATE_SLEEP;
1138 cmd->command = cpu_to_le16(command);
1139 cmd->seq_num = cpu_to_le16(seq_num);
1140}
1141EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp);
1142
1143/*
1144 * This function prepares an enhanced power mode command.
1145 *
1146 * This function can be used to disable power save or to configure
1147 * power save with auto PS or STA PS or auto deep sleep.
1148 *
1149 * Preparation includes -
1150 * - Setting command ID, action and proper size
1151 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1152 * auto deep sleep TLV (as required)
1153 * - Ensuring correct endian-ness
1154 */
1155int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv,
1156 struct host_cmd_ds_command *cmd,
1157 u16 cmd_action, uint16_t ps_bitmap,
1158 void *data_buf)
1159{
1160 struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh =
1161 &cmd->params.psmode_enh;
1162 u8 *tlv;
1163 u16 cmd_size = 0;
1164
1165 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
1166 if (cmd_action == DIS_AUTO_PS) {
1167 psmode_enh->action = cpu_to_le16(DIS_AUTO_PS);
1168 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1169 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1170 sizeof(psmode_enh->params.ps_bitmap));
1171 } else if (cmd_action == GET_PS) {
1172 psmode_enh->action = cpu_to_le16(GET_PS);
1173 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1174 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1175 sizeof(psmode_enh->params.ps_bitmap));
1176 } else if (cmd_action == EN_AUTO_PS) {
1177 psmode_enh->action = cpu_to_le16(EN_AUTO_PS);
1178 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1179 cmd_size = S_DS_GEN + sizeof(psmode_enh->action) +
1180 sizeof(psmode_enh->params.ps_bitmap);
1181 tlv = (u8 *) cmd + cmd_size;
1182 if (ps_bitmap & BITMAP_STA_PS) {
1183 struct mwifiex_adapter *adapter = priv->adapter;
1184 struct mwifiex_ie_types_ps_param *ps_tlv =
1185 (struct mwifiex_ie_types_ps_param *) tlv;
1186 struct mwifiex_ps_param *ps_mode = &ps_tlv->param;
1187 ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM);
1188 ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) -
1189 sizeof(struct mwifiex_ie_types_header));
1190 cmd_size += sizeof(*ps_tlv);
1191 tlv += sizeof(*ps_tlv);
1192 dev_dbg(adapter->dev, "cmd: PS Command: Enter PS\n");
1193 ps_mode->null_pkt_interval =
1194 cpu_to_le16(adapter->null_pkt_interval);
1195 ps_mode->multiple_dtims =
1196 cpu_to_le16(adapter->multiple_dtim);
1197 ps_mode->bcn_miss_timeout =
1198 cpu_to_le16(adapter->bcn_miss_time_out);
1199 ps_mode->local_listen_interval =
1200 cpu_to_le16(adapter->local_listen_interval);
1201 ps_mode->adhoc_wake_period =
1202 cpu_to_le16(adapter->adhoc_awake_period);
1203 ps_mode->delay_to_ps =
1204 cpu_to_le16(adapter->delay_to_ps);
1205 ps_mode->mode =
1206 cpu_to_le16(adapter->enhanced_ps_mode);
1207
1208 }
1209 if (ps_bitmap & BITMAP_AUTO_DS) {
1210 struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv =
1211 (struct mwifiex_ie_types_auto_ds_param *) tlv;
1212 u16 idletime = 0;
1213
1214 auto_ds_tlv->header.type =
1215 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM);
1216 auto_ds_tlv->header.len =
1217 cpu_to_le16(sizeof(*auto_ds_tlv) -
1218 sizeof(struct mwifiex_ie_types_header));
1219 cmd_size += sizeof(*auto_ds_tlv);
1220 tlv += sizeof(*auto_ds_tlv);
1221 if (data_buf)
1222 idletime = ((struct mwifiex_ds_auto_ds *)
1223 data_buf)->idle_time;
1224 dev_dbg(priv->adapter->dev,
1225 "cmd: PS Command: Enter Auto Deep Sleep\n");
1226 auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime);
1227 }
1228 cmd->size = cpu_to_le16(cmd_size);
1229 }
1230 return 0;
1231}
1232
1233/*
1234 * This function handles the command response of an enhanced power mode
1235 * command.
1236 *
1237 * Handling includes changing the header fields into CPU format
1238 * and setting the current enhanced power mode in driver.
1239 */
1240int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv,
1241 struct host_cmd_ds_command *resp,
1242 void *data_buf)
1243{
1244 struct mwifiex_adapter *adapter = priv->adapter;
1245 struct host_cmd_ds_802_11_ps_mode_enh *ps_mode =
1246 &resp->params.psmode_enh;
1247 uint16_t action = le16_to_cpu(ps_mode->action);
1248 uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap);
1249 uint16_t auto_ps_bitmap =
1250 le16_to_cpu(ps_mode->params.ps_bitmap);
1251
1252 dev_dbg(adapter->dev, "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1253 __func__, resp->result, action);
1254 if (action == EN_AUTO_PS) {
1255 if (auto_ps_bitmap & BITMAP_AUTO_DS) {
1256 dev_dbg(adapter->dev, "cmd: Enabled auto deep sleep\n");
1257 priv->adapter->is_deep_sleep = true;
1258 }
1259 if (auto_ps_bitmap & BITMAP_STA_PS) {
1260 dev_dbg(adapter->dev, "cmd: Enabled STA power save\n");
1261 if (adapter->sleep_period.period)
1262 dev_dbg(adapter->dev, "cmd: set to uapsd/pps mode\n");
1263 }
1264 } else if (action == DIS_AUTO_PS) {
1265 if (ps_bitmap & BITMAP_AUTO_DS) {
1266 priv->adapter->is_deep_sleep = false;
1267 dev_dbg(adapter->dev, "cmd: Disabled auto deep sleep\n");
1268 }
1269 if (ps_bitmap & BITMAP_STA_PS) {
1270 dev_dbg(adapter->dev, "cmd: Disabled STA power save\n");
1271 if (adapter->sleep_period.period) {
1272 adapter->delay_null_pkt = false;
1273 adapter->tx_lock_flag = false;
1274 adapter->pps_uapsd_mode = false;
1275 }
1276 }
1277 } else if (action == GET_PS) {
1278 if (ps_bitmap & BITMAP_STA_PS)
1279 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
1280 else
1281 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
1282
1283 dev_dbg(adapter->dev, "cmd: ps_bitmap=%#x\n", ps_bitmap);
1284
1285 if (data_buf) {
1286 /* This section is for get power save mode */
1287 struct mwifiex_ds_pm_cfg *pm_cfg =
1288 (struct mwifiex_ds_pm_cfg *)data_buf;
1289 if (ps_bitmap & BITMAP_STA_PS)
1290 pm_cfg->param.ps_mode = 1;
1291 else
1292 pm_cfg->param.ps_mode = 0;
1293 }
1294 }
1295 return 0;
1296}
1297
1298/*
1299 * This function prepares command to get hardware specifications.
1300 *
1301 * Preparation includes -
1302 * - Setting command ID, action and proper size
1303 * - Setting permanent address parameter
1304 * - Ensuring correct endian-ness
1305 */
1306int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv,
1307 struct host_cmd_ds_command *cmd)
1308{
1309 struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec;
1310
1311 cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC);
1312 cmd->size =
1313 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN);
1314 memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN);
1315
1316 return 0;
1317}
1318
1319/*
1320 * This function handles the command response of get hardware
1321 * specifications.
1322 *
1323 * Handling includes changing the header fields into CPU format
1324 * and saving/updating the following parameters in driver -
1325 * - Firmware capability information
1326 * - Firmware band settings
1327 * - Ad-hoc start band and channel
1328 * - Ad-hoc 11n activation status
1329 * - Firmware release number
1330 * - Number of antennas
1331 * - Hardware address
1332 * - Hardware interface version
1333 * - Firmware version
1334 * - Region code
1335 * - 11n capabilities
1336 * - MCS support fields
1337 * - MP end port
1338 */
1339int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv,
1340 struct host_cmd_ds_command *resp)
1341{
1342 struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec;
1343 struct mwifiex_adapter *adapter = priv->adapter;
1344 int i;
1345
1346 adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info);
1347
1348 if (IS_SUPPORT_MULTI_BANDS(adapter))
1349 adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter);
1350 else
1351 adapter->fw_bands = BAND_B;
1352
1353 adapter->config_bands = adapter->fw_bands;
1354
1355 if (adapter->fw_bands & BAND_A) {
1356 if (adapter->fw_bands & BAND_GN) {
1357 adapter->config_bands |= BAND_AN;
1358 adapter->fw_bands |= BAND_AN;
1359 }
1360 if (adapter->fw_bands & BAND_AN) {
1361 adapter->adhoc_start_band = BAND_A | BAND_AN;
1362 adapter->adhoc_11n_enabled = true;
1363 } else {
1364 adapter->adhoc_start_band = BAND_A;
1365 }
1366 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A;
1367 } else if (adapter->fw_bands & BAND_GN) {
1368 adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN;
1369 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1370 adapter->adhoc_11n_enabled = true;
1371 } else if (adapter->fw_bands & BAND_G) {
1372 adapter->adhoc_start_band = BAND_G | BAND_B;
1373 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1374 } else if (adapter->fw_bands & BAND_B) {
1375 adapter->adhoc_start_band = BAND_B;
1376 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1377 }
1378
1379 adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number);
1380 adapter->number_of_antenna = le16_to_cpu(hw_spec->number_of_antenna);
1381
1382 dev_dbg(adapter->dev, "info: GET_HW_SPEC: fw_release_number- %#x\n",
1383 adapter->fw_release_number);
1384 dev_dbg(adapter->dev, "info: GET_HW_SPEC: permanent addr: %pM\n",
1385 hw_spec->permanent_addr);
1386 dev_dbg(adapter->dev, "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
1387 le16_to_cpu(hw_spec->hw_if_version),
1388 le16_to_cpu(hw_spec->version));
1389
1390 if (priv->curr_addr[0] == 0xff)
1391 memmove(priv->curr_addr, hw_spec->permanent_addr, ETH_ALEN);
1392
1393 adapter->region_code = le16_to_cpu(hw_spec->region_code);
1394
1395 for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++)
1396 /* Use the region code to search for the index */
1397 if (adapter->region_code == region_code_index[i])
1398 break;
1399
1400 /* If it's unidentified region code, use the default (USA) */
1401 if (i >= MWIFIEX_MAX_REGION_CODE) {
1402 adapter->region_code = 0x10;
1403 dev_dbg(adapter->dev, "cmd: unknown region code, use default (USA)\n");
1404 }
1405
1406 adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap);
1407 adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support;
1408
1409 if (adapter->if_ops.update_mp_end_port)
1410 adapter->if_ops.update_mp_end_port(adapter,
1411 le16_to_cpu(hw_spec->mp_end_port));
1412
1413 return 0;
1414}