2 * Marvell Wireless LAN device driver: commands and events
4 * Copyright (C) 2011, Marvell International Ltd.
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.
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.
29 * This function initializes a command node.
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.
37 mwifiex_init_cmd_node(struct mwifiex_private *priv,
38 struct cmd_ctrl_node *cmd_node,
39 u32 cmd_oid, void *data_buf)
41 cmd_node->priv = priv;
42 cmd_node->cmd_oid = cmd_oid;
43 if (priv->adapter->cmd_wait_q_required) {
44 cmd_node->wait_q_enabled = priv->adapter->cmd_wait_q_required;
45 priv->adapter->cmd_wait_q_required = false;
46 cmd_node->cmd_wait_q_woken = false;
47 cmd_node->condition = &cmd_node->cmd_wait_q_woken;
49 cmd_node->data_buf = data_buf;
50 cmd_node->cmd_skb = cmd_node->skb;
54 * This function returns a command node from the free queue depending upon
57 static struct cmd_ctrl_node *
58 mwifiex_get_cmd_node(struct mwifiex_adapter *adapter)
60 struct cmd_ctrl_node *cmd_node;
63 spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
64 if (list_empty(&adapter->cmd_free_q)) {
65 dev_err(adapter->dev, "GET_CMD_NODE: cmd node not available\n");
66 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
69 cmd_node = list_first_entry(&adapter->cmd_free_q,
70 struct cmd_ctrl_node, list);
71 list_del(&cmd_node->list);
72 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
78 * This function cleans up a command node.
80 * The function resets the fields including the buffer pointers.
81 * This function does not try to free the buffers. They must be
82 * freed before calling this function.
84 * This function will however call the receive completion callback
85 * in case a response buffer is still available before resetting
89 mwifiex_clean_cmd_node(struct mwifiex_adapter *adapter,
90 struct cmd_ctrl_node *cmd_node)
92 cmd_node->cmd_oid = 0;
93 cmd_node->cmd_flag = 0;
94 cmd_node->data_buf = NULL;
95 cmd_node->wait_q_enabled = false;
97 if (cmd_node->cmd_skb)
98 skb_trim(cmd_node->cmd_skb, 0);
100 if (cmd_node->resp_skb) {
101 adapter->if_ops.cmdrsp_complete(adapter, cmd_node->resp_skb);
102 cmd_node->resp_skb = NULL;
107 * This function sends a host command to the firmware.
109 * The function copies the host command into the driver command
110 * buffer, which will be transferred to the firmware later by the
113 static int mwifiex_cmd_host_cmd(struct mwifiex_private *priv,
114 struct host_cmd_ds_command *cmd,
115 struct mwifiex_ds_misc_cmd *pcmd_ptr)
117 /* Copy the HOST command to command buffer */
118 memcpy(cmd, pcmd_ptr->cmd, pcmd_ptr->len);
119 dev_dbg(priv->adapter->dev, "cmd: host cmd size = %d\n", pcmd_ptr->len);
124 * This function downloads a command to the firmware.
126 * The function performs sanity tests, sets the command sequence
127 * number and size, converts the header fields to CPU format before
128 * sending. Afterwards, it logs the command ID and action for debugging
129 * and sets up the command timeout timer.
131 static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
132 struct cmd_ctrl_node *cmd_node)
135 struct mwifiex_adapter *adapter = priv->adapter;
137 struct host_cmd_ds_command *host_cmd;
140 struct timeval tstamp;
143 if (!adapter || !cmd_node)
146 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
149 if (host_cmd == NULL || host_cmd->size == 0) {
150 dev_err(adapter->dev, "DNLD_CMD: host_cmd is null"
151 " or cmd size is 0, not sending\n");
152 if (cmd_node->wait_q_enabled)
153 adapter->cmd_wait_q.status = -1;
154 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
158 /* Set command sequence number */
160 host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
161 (adapter->seq_num, cmd_node->priv->bss_num,
162 cmd_node->priv->bss_type));
164 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
165 adapter->curr_cmd = cmd_node;
166 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
168 cmd_code = le16_to_cpu(host_cmd->command);
169 cmd_size = le16_to_cpu(host_cmd->size);
171 skb_trim(cmd_node->cmd_skb, cmd_size);
173 do_gettimeofday(&tstamp);
174 dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"
176 tstamp.tv_sec, tstamp.tv_usec, cmd_code,
177 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)), cmd_size,
178 le16_to_cpu(host_cmd->seq_num));
180 skb_push(cmd_node->cmd_skb, INTF_HEADER_LEN);
182 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
183 cmd_node->cmd_skb, NULL);
185 skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN);
188 dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
189 if (cmd_node->wait_q_enabled)
190 adapter->cmd_wait_q.status = -1;
191 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
193 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
194 adapter->curr_cmd = NULL;
195 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
197 adapter->dbg.num_cmd_host_to_card_failure++;
201 /* Save the last command id and action to debug log */
202 adapter->dbg.last_cmd_index =
203 (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM;
204 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code;
205 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] =
206 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN));
208 /* Clear BSS_NO_BITS from HostCmd */
209 cmd_code &= HostCmd_CMD_ID_MASK;
211 /* Setup the timer after transmit command */
212 mod_timer(&adapter->cmd_timer,
213 jiffies + (MWIFIEX_TIMER_10S * HZ) / 1000);
219 * This function downloads a sleep confirm command to the firmware.
221 * The function performs sanity tests, sets the command sequence
222 * number and size, converts the header fields to CPU format before
225 * No responses are needed for sleep confirm command.
227 static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter)
230 struct mwifiex_private *priv;
231 struct mwifiex_opt_sleep_confirm *sleep_cfm_buf =
232 (struct mwifiex_opt_sleep_confirm *)
233 adapter->sleep_cfm->data;
234 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
236 sleep_cfm_buf->seq_num =
237 cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
238 (adapter->seq_num, priv->bss_num,
242 skb_push(adapter->sleep_cfm, INTF_HEADER_LEN);
243 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
244 adapter->sleep_cfm, NULL);
245 skb_pull(adapter->sleep_cfm, INTF_HEADER_LEN);
248 dev_err(adapter->dev, "SLEEP_CFM: failed\n");
249 adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++;
252 if (GET_BSS_ROLE(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY))
253 == MWIFIEX_BSS_ROLE_STA) {
254 if (!sleep_cfm_buf->resp_ctrl)
255 /* Response is not needed for sleep
257 adapter->ps_state = PS_STATE_SLEEP;
259 adapter->ps_state = PS_STATE_SLEEP_CFM;
261 if (!sleep_cfm_buf->resp_ctrl
262 && (adapter->is_hs_configured
263 && !adapter->sleep_period.period)) {
264 adapter->pm_wakeup_card_req = true;
265 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
266 MWIFIEX_BSS_ROLE_STA), true);
274 * This function allocates the command buffers and links them to
275 * the command free queue.
277 * The driver uses a pre allocated number of command buffers, which
278 * are created at driver initializations and freed at driver cleanup.
279 * Every command needs to obtain a command buffer from this pool before
280 * it can be issued. The command free queue lists the command buffers
281 * currently free to use, while the command pending queue lists the
282 * command buffers already in use and awaiting handling. Command buffers
283 * are returned to the free queue after use.
285 int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter)
287 struct cmd_ctrl_node *cmd_array;
291 /* Allocate and initialize struct cmd_ctrl_node */
292 buf_size = sizeof(struct cmd_ctrl_node) * MWIFIEX_NUM_OF_CMD_BUFFER;
293 cmd_array = kzalloc(buf_size, GFP_KERNEL);
295 dev_err(adapter->dev, "%s: failed to alloc cmd_array\n",
300 adapter->cmd_pool = cmd_array;
301 memset(adapter->cmd_pool, 0, buf_size);
303 /* Allocate and initialize command buffers */
304 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
305 cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER);
306 if (!cmd_array[i].skb) {
307 dev_err(adapter->dev, "ALLOC_CMD_BUF: out of memory\n");
312 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++)
313 mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]);
319 * This function frees the command buffers.
321 * The function calls the completion callback for all the command
322 * buffers that still have response buffers associated with them.
324 int mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter)
326 struct cmd_ctrl_node *cmd_array;
329 /* Need to check if cmd pool is allocated or not */
330 if (!adapter->cmd_pool) {
331 dev_dbg(adapter->dev, "info: FREE_CMD_BUF: cmd_pool is null\n");
335 cmd_array = adapter->cmd_pool;
337 /* Release shared memory buffers */
338 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
339 if (cmd_array[i].skb) {
340 dev_dbg(adapter->dev, "cmd: free cmd buffer %d\n", i);
341 dev_kfree_skb_any(cmd_array[i].skb);
343 if (!cmd_array[i].resp_skb)
345 dev_kfree_skb_any(cmd_array[i].resp_skb);
347 /* Release struct cmd_ctrl_node */
348 if (adapter->cmd_pool) {
349 dev_dbg(adapter->dev, "cmd: free cmd pool\n");
350 kfree(adapter->cmd_pool);
351 adapter->cmd_pool = NULL;
358 * This function handles events generated by firmware.
360 * Event body of events received from firmware are not used (though they are
361 * saved), only the event ID is used. Some events are re-invoked by
362 * the driver, with a new event body.
364 * After processing, the function calls the completion callback
367 int mwifiex_process_event(struct mwifiex_adapter *adapter)
370 struct mwifiex_private *priv =
371 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
372 struct sk_buff *skb = adapter->event_skb;
373 u32 eventcause = adapter->event_cause;
374 struct timeval tstamp;
375 struct mwifiex_rxinfo *rx_info;
377 /* Save the last event to debug log */
378 adapter->dbg.last_event_index =
379 (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM;
380 adapter->dbg.last_event[adapter->dbg.last_event_index] =
383 /* Get BSS number and corresponding priv */
384 priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause),
385 EVENT_GET_BSS_TYPE(eventcause));
387 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
388 /* Clear BSS_NO_BITS from event */
389 eventcause &= EVENT_ID_MASK;
390 adapter->event_cause = eventcause;
393 rx_info = MWIFIEX_SKB_RXCB(skb);
394 rx_info->bss_index = priv->bss_index;
397 if (eventcause != EVENT_PS_SLEEP && eventcause != EVENT_PS_AWAKE) {
398 do_gettimeofday(&tstamp);
399 dev_dbg(adapter->dev, "event: %lu.%lu: cause: %#x\n",
400 tstamp.tv_sec, tstamp.tv_usec, eventcause);
403 ret = mwifiex_process_sta_event(priv);
405 adapter->event_cause = 0;
406 adapter->event_skb = NULL;
407 adapter->if_ops.event_complete(adapter, skb);
413 * This function is used to send synchronous command to the firmware.
415 * it allocates a wait queue for the command and wait for the command
418 int mwifiex_send_cmd_sync(struct mwifiex_private *priv, uint16_t cmd_no,
419 u16 cmd_action, u32 cmd_oid, void *data_buf)
422 struct mwifiex_adapter *adapter = priv->adapter;
424 adapter->cmd_wait_q_required = true;
426 ret = mwifiex_send_cmd_async(priv, cmd_no, cmd_action, cmd_oid,
429 ret = mwifiex_wait_queue_complete(adapter);
436 * This function prepares a command and asynchronously send it to the firmware.
438 * Preparation includes -
439 * - Sanity tests to make sure the card is still present or the FW
441 * - Getting a new command node from the command free queue
442 * - Initializing the command node for default parameters
443 * - Fill up the non-default parameters and buffer pointers
444 * - Add the command to pending queue
446 int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no,
447 u16 cmd_action, u32 cmd_oid, void *data_buf)
450 struct mwifiex_adapter *adapter = priv->adapter;
451 struct cmd_ctrl_node *cmd_node;
452 struct host_cmd_ds_command *cmd_ptr;
455 pr_err("PREP_CMD: adapter is NULL\n");
459 if (adapter->is_suspended) {
460 dev_err(adapter->dev, "PREP_CMD: device in suspended state\n");
464 if (adapter->surprise_removed) {
465 dev_err(adapter->dev, "PREP_CMD: card is removed\n");
469 if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) {
470 if (cmd_no != HostCmd_CMD_FUNC_INIT) {
471 dev_err(adapter->dev, "PREP_CMD: FW in reset state\n");
476 /* Get a new command node */
477 cmd_node = mwifiex_get_cmd_node(adapter);
480 dev_err(adapter->dev, "PREP_CMD: no free cmd node\n");
484 /* Initialize the command node */
485 mwifiex_init_cmd_node(priv, cmd_node, cmd_oid, data_buf);
487 if (!cmd_node->cmd_skb) {
488 dev_err(adapter->dev, "PREP_CMD: no free cmd buf\n");
492 memset(skb_put(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)),
493 0, sizeof(struct host_cmd_ds_command));
495 cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
496 cmd_ptr->command = cpu_to_le16(cmd_no);
499 /* Prepare command */
501 ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action,
502 cmd_oid, data_buf, cmd_ptr);
504 ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf);
505 cmd_node->cmd_flag |= CMD_F_HOSTCMD;
508 /* Return error, since the command preparation failed */
510 dev_err(adapter->dev, "PREP_CMD: cmd %#x preparation failed\n",
512 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
517 if (cmd_no == HostCmd_CMD_802_11_SCAN) {
518 mwifiex_queue_scan_cmd(priv, cmd_node);
520 adapter->cmd_queued = cmd_node;
521 mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
528 * This function returns a command to the command free queue.
530 * The function also calls the completion callback if required, before
531 * cleaning the command node and re-inserting it into the free queue.
534 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter,
535 struct cmd_ctrl_node *cmd_node)
542 if (cmd_node->wait_q_enabled)
543 mwifiex_complete_cmd(adapter, cmd_node);
545 mwifiex_clean_cmd_node(adapter, cmd_node);
547 /* Insert node into cmd_free_q */
548 spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
549 list_add_tail(&cmd_node->list, &adapter->cmd_free_q);
550 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
554 * This function queues a command to the command pending queue.
556 * This in effect adds the command to the command list to be executed.
557 * Exit PS command is handled specially, by placing it always to the
558 * front of the command queue.
561 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter,
562 struct cmd_ctrl_node *cmd_node, u32 add_tail)
564 struct host_cmd_ds_command *host_cmd = NULL;
568 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
570 dev_err(adapter->dev, "QUEUE_CMD: host_cmd is NULL\n");
574 command = le16_to_cpu(host_cmd->command);
576 /* Exit_PS command needs to be queued in the header always. */
577 if (command == HostCmd_CMD_802_11_PS_MODE_ENH) {
578 struct host_cmd_ds_802_11_ps_mode_enh *pm =
579 &host_cmd->params.psmode_enh;
580 if ((le16_to_cpu(pm->action) == DIS_PS)
581 || (le16_to_cpu(pm->action) == DIS_AUTO_PS)) {
582 if (adapter->ps_state != PS_STATE_AWAKE)
587 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
589 list_add_tail(&cmd_node->list, &adapter->cmd_pending_q);
591 list_add(&cmd_node->list, &adapter->cmd_pending_q);
592 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
594 dev_dbg(adapter->dev, "cmd: QUEUE_CMD: cmd=%#x is queued\n", command);
598 * This function executes the next command in command pending queue.
600 * This function will fail if a command is already in processing stage,
601 * otherwise it will dequeue the first command from the command pending
602 * queue and send to the firmware.
604 * If the device is currently in host sleep mode, any commands, except the
605 * host sleep configuration command will de-activate the host sleep. For PS
606 * mode, the function will put the firmware back to sleep if applicable.
608 int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter)
610 struct mwifiex_private *priv;
611 struct cmd_ctrl_node *cmd_node;
613 struct host_cmd_ds_command *host_cmd;
614 unsigned long cmd_flags;
615 unsigned long cmd_pending_q_flags;
617 /* Check if already in processing */
618 if (adapter->curr_cmd) {
619 dev_err(adapter->dev, "EXEC_NEXT_CMD: cmd in processing\n");
623 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
624 /* Check if any command is pending */
625 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
626 if (list_empty(&adapter->cmd_pending_q)) {
627 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
628 cmd_pending_q_flags);
629 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
632 cmd_node = list_first_entry(&adapter->cmd_pending_q,
633 struct cmd_ctrl_node, list);
634 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
635 cmd_pending_q_flags);
637 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
638 priv = cmd_node->priv;
640 if (adapter->ps_state != PS_STATE_AWAKE) {
641 dev_err(adapter->dev, "%s: cannot send cmd in sleep state,"
642 " this should not happen\n", __func__);
643 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
647 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
648 list_del(&cmd_node->list);
649 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
650 cmd_pending_q_flags);
652 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
653 ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node);
654 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
655 /* Any command sent to the firmware when host is in sleep
656 * mode should de-configure host sleep. We should skip the
657 * host sleep configuration command itself though
659 if (priv && (host_cmd->command !=
660 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) {
661 if (adapter->hs_activated) {
662 adapter->is_hs_configured = false;
663 mwifiex_hs_activated_event(priv, false);
671 * This function handles the command response.
673 * After processing, the function cleans the command node and puts
674 * it back to the command free queue.
676 int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
678 struct host_cmd_ds_command *resp;
679 struct mwifiex_private *priv =
680 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
682 uint16_t orig_cmdresp_no;
684 uint16_t cmdresp_result;
685 struct timeval tstamp;
688 /* Now we got response from FW, cancel the command timer */
689 del_timer(&adapter->cmd_timer);
691 if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) {
692 resp = (struct host_cmd_ds_command *) adapter->upld_buf;
693 dev_err(adapter->dev, "CMD_RESP: NULL curr_cmd, %#x\n",
694 le16_to_cpu(resp->command));
698 adapter->num_cmd_timeout = 0;
700 resp = (struct host_cmd_ds_command *) adapter->curr_cmd->resp_skb->data;
701 if (adapter->curr_cmd->cmd_flag & CMD_F_CANCELED) {
702 dev_err(adapter->dev, "CMD_RESP: %#x been canceled\n",
703 le16_to_cpu(resp->command));
704 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
705 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
706 adapter->curr_cmd = NULL;
707 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
711 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
712 /* Copy original response back to response buffer */
713 struct mwifiex_ds_misc_cmd *hostcmd;
714 uint16_t size = le16_to_cpu(resp->size);
715 dev_dbg(adapter->dev, "info: host cmd resp size = %d\n", size);
716 size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER);
717 if (adapter->curr_cmd->data_buf) {
718 hostcmd = adapter->curr_cmd->data_buf;
720 memcpy(hostcmd->cmd, resp, size);
723 orig_cmdresp_no = le16_to_cpu(resp->command);
725 /* Get BSS number and corresponding priv */
726 priv = mwifiex_get_priv_by_id(adapter,
727 HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)),
728 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num)));
730 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
731 /* Clear RET_BIT from HostCmd */
732 resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK);
734 cmdresp_no = le16_to_cpu(resp->command);
735 cmdresp_result = le16_to_cpu(resp->result);
737 /* Save the last command response to debug log */
738 adapter->dbg.last_cmd_resp_index =
739 (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM;
740 adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] =
743 do_gettimeofday(&tstamp);
744 dev_dbg(adapter->dev, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
745 " len %d, seqno 0x%x\n",
746 tstamp.tv_sec, tstamp.tv_usec, orig_cmdresp_no, cmdresp_result,
747 le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num));
749 if (!(orig_cmdresp_no & HostCmd_RET_BIT)) {
750 dev_err(adapter->dev, "CMD_RESP: invalid cmd resp\n");
751 if (adapter->curr_cmd->wait_q_enabled)
752 adapter->cmd_wait_q.status = -1;
754 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
755 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
756 adapter->curr_cmd = NULL;
757 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
761 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
762 adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD;
763 if ((cmdresp_result == HostCmd_RESULT_OK)
764 && (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH))
765 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
767 /* handle response */
768 ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp);
771 /* Check init command response */
772 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) {
774 dev_err(adapter->dev, "%s: cmd %#x failed during "
775 "initialization\n", __func__, cmdresp_no);
776 mwifiex_init_fw_complete(adapter);
778 } else if (adapter->last_init_cmd == cmdresp_no)
779 adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE;
782 if (adapter->curr_cmd) {
783 if (adapter->curr_cmd->wait_q_enabled && (!ret))
784 adapter->cmd_wait_q.status = 0;
785 else if (adapter->curr_cmd->wait_q_enabled && (ret == -1))
786 adapter->cmd_wait_q.status = -1;
788 /* Clean up and put current command back to cmd_free_q */
789 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
791 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
792 adapter->curr_cmd = NULL;
793 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
800 * This function handles the timeout of command sending.
802 * It will re-send the same command again.
805 mwifiex_cmd_timeout_func(unsigned long function_context)
807 struct mwifiex_adapter *adapter =
808 (struct mwifiex_adapter *) function_context;
809 struct cmd_ctrl_node *cmd_node;
810 struct timeval tstamp;
812 adapter->num_cmd_timeout++;
813 adapter->dbg.num_cmd_timeout++;
814 if (!adapter->curr_cmd) {
815 dev_dbg(adapter->dev, "cmd: empty curr_cmd\n");
818 cmd_node = adapter->curr_cmd;
820 adapter->dbg.timeout_cmd_id =
821 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index];
822 adapter->dbg.timeout_cmd_act =
823 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index];
824 do_gettimeofday(&tstamp);
825 dev_err(adapter->dev, "%s: Timeout cmd id (%lu.%lu) = %#x,"
826 " act = %#x\n", __func__,
827 tstamp.tv_sec, tstamp.tv_usec,
828 adapter->dbg.timeout_cmd_id,
829 adapter->dbg.timeout_cmd_act);
831 dev_err(adapter->dev, "num_data_h2c_failure = %d\n",
832 adapter->dbg.num_tx_host_to_card_failure);
833 dev_err(adapter->dev, "num_cmd_h2c_failure = %d\n",
834 adapter->dbg.num_cmd_host_to_card_failure);
836 dev_err(adapter->dev, "num_cmd_timeout = %d\n",
837 adapter->dbg.num_cmd_timeout);
838 dev_err(adapter->dev, "num_tx_timeout = %d\n",
839 adapter->dbg.num_tx_timeout);
841 dev_err(adapter->dev, "last_cmd_index = %d\n",
842 adapter->dbg.last_cmd_index);
843 print_hex_dump_bytes("last_cmd_id: ", DUMP_PREFIX_OFFSET,
844 adapter->dbg.last_cmd_id, DBG_CMD_NUM);
845 print_hex_dump_bytes("last_cmd_act: ", DUMP_PREFIX_OFFSET,
846 adapter->dbg.last_cmd_act, DBG_CMD_NUM);
848 dev_err(adapter->dev, "last_cmd_resp_index = %d\n",
849 adapter->dbg.last_cmd_resp_index);
850 print_hex_dump_bytes("last_cmd_resp_id: ", DUMP_PREFIX_OFFSET,
851 adapter->dbg.last_cmd_resp_id, DBG_CMD_NUM);
853 dev_err(adapter->dev, "last_event_index = %d\n",
854 adapter->dbg.last_event_index);
855 print_hex_dump_bytes("last_event: ", DUMP_PREFIX_OFFSET,
856 adapter->dbg.last_event, DBG_CMD_NUM);
858 dev_err(adapter->dev, "data_sent=%d cmd_sent=%d\n",
859 adapter->data_sent, adapter->cmd_sent);
861 dev_err(adapter->dev, "ps_mode=%d ps_state=%d\n",
862 adapter->ps_mode, adapter->ps_state);
864 if (cmd_node->wait_q_enabled) {
865 adapter->cmd_wait_q.status = -ETIMEDOUT;
866 wake_up_interruptible(&adapter->cmd_wait_q.wait);
867 mwifiex_cancel_pending_ioctl(adapter);
868 /* reset cmd_sent flag to unblock new commands */
869 adapter->cmd_sent = false;
872 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
873 mwifiex_init_fw_complete(adapter);
877 * This function cancels all the pending commands.
879 * The current command, all commands in command pending queue and all scan
880 * commands in scan pending queue are cancelled. All the completion callbacks
881 * are called with failure status to ensure cleanup.
884 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter)
886 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
889 /* Cancel current cmd */
890 if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) {
891 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
892 adapter->curr_cmd->wait_q_enabled = false;
893 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
894 adapter->cmd_wait_q.status = -1;
895 mwifiex_complete_cmd(adapter, adapter->curr_cmd);
897 /* Cancel all pending command */
898 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
899 list_for_each_entry_safe(cmd_node, tmp_node,
900 &adapter->cmd_pending_q, list) {
901 list_del(&cmd_node->list);
902 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
904 if (cmd_node->wait_q_enabled) {
905 adapter->cmd_wait_q.status = -1;
906 mwifiex_complete_cmd(adapter, cmd_node);
907 cmd_node->wait_q_enabled = false;
909 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
910 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
912 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
914 /* Cancel all pending scan command */
915 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
916 list_for_each_entry_safe(cmd_node, tmp_node,
917 &adapter->scan_pending_q, list) {
918 list_del(&cmd_node->list);
919 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
921 cmd_node->wait_q_enabled = false;
922 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
923 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
925 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
927 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
928 adapter->scan_processing = false;
929 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
933 * This function cancels all pending commands that matches with
934 * the given IOCTL request.
936 * Both the current command buffer and the pending command queue are
937 * searched for matching IOCTL request. The completion callback of
938 * the matched command is called with failure status to ensure cleanup.
939 * In case of scan commands, all pending commands in scan pending queue
943 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
945 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
946 unsigned long cmd_flags;
947 unsigned long scan_pending_q_flags;
948 uint16_t cancel_scan_cmd = false;
950 if ((adapter->curr_cmd) &&
951 (adapter->curr_cmd->wait_q_enabled)) {
952 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
953 cmd_node = adapter->curr_cmd;
954 cmd_node->wait_q_enabled = false;
955 cmd_node->cmd_flag |= CMD_F_CANCELED;
956 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
957 mwifiex_complete_cmd(adapter, adapter->curr_cmd);
958 adapter->curr_cmd = NULL;
959 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
962 /* Cancel all pending scan command */
963 spin_lock_irqsave(&adapter->scan_pending_q_lock,
964 scan_pending_q_flags);
965 list_for_each_entry_safe(cmd_node, tmp_node,
966 &adapter->scan_pending_q, list) {
967 list_del(&cmd_node->list);
968 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
969 scan_pending_q_flags);
970 cmd_node->wait_q_enabled = false;
971 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
972 spin_lock_irqsave(&adapter->scan_pending_q_lock,
973 scan_pending_q_flags);
974 cancel_scan_cmd = true;
976 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
977 scan_pending_q_flags);
979 if (cancel_scan_cmd) {
980 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
981 adapter->scan_processing = false;
982 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
984 adapter->cmd_wait_q.status = -1;
988 * This function sends the sleep confirm command to firmware, if
991 * The sleep confirm command cannot be issued if command response,
992 * data response or event response is awaiting handling, or if we
993 * are in the middle of sending a command, or expecting a command
997 mwifiex_check_ps_cond(struct mwifiex_adapter *adapter)
999 if (!adapter->cmd_sent &&
1000 !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
1001 mwifiex_dnld_sleep_confirm_cmd(adapter);
1003 dev_dbg(adapter->dev,
1004 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1005 (adapter->cmd_sent) ? "D" : "",
1006 (adapter->curr_cmd) ? "C" : "",
1007 (IS_CARD_RX_RCVD(adapter)) ? "R" : "");
1011 * This function sends a Host Sleep activated event to applications.
1013 * This event is generated by the driver, with a blank event body.
1016 mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated)
1019 if (priv->adapter->is_hs_configured) {
1020 priv->adapter->hs_activated = true;
1021 dev_dbg(priv->adapter->dev, "event: hs_activated\n");
1022 priv->adapter->hs_activate_wait_q_woken = true;
1023 wake_up_interruptible(
1024 &priv->adapter->hs_activate_wait_q);
1026 dev_dbg(priv->adapter->dev, "event: HS not configured\n");
1029 dev_dbg(priv->adapter->dev, "event: hs_deactivated\n");
1030 priv->adapter->hs_activated = false;
1035 * This function handles the command response of a Host Sleep configuration
1038 * Handling includes changing the header fields into CPU format
1039 * and setting the current host sleep activation status in driver.
1041 * In case host sleep status change, the function generates an event to
1042 * notify the applications.
1044 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv,
1045 struct host_cmd_ds_command *resp)
1047 struct mwifiex_adapter *adapter = priv->adapter;
1048 struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg =
1049 &resp->params.opt_hs_cfg;
1050 uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions);
1052 if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE)) {
1053 mwifiex_hs_activated_event(priv, true);
1056 dev_dbg(adapter->dev, "cmd: CMD_RESP: HS_CFG cmd reply"
1057 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1058 resp->result, conditions,
1059 phs_cfg->params.hs_config.gpio,
1060 phs_cfg->params.hs_config.gap);
1062 if (conditions != HOST_SLEEP_CFG_CANCEL) {
1063 adapter->is_hs_configured = true;
1065 adapter->is_hs_configured = false;
1066 if (adapter->hs_activated)
1067 mwifiex_hs_activated_event(priv, false);
1074 * This function wakes up the adapter and generates a Host Sleep
1075 * cancel event on receiving the power up interrupt.
1078 mwifiex_process_hs_config(struct mwifiex_adapter *adapter)
1080 dev_dbg(adapter->dev, "info: %s: auto cancelling host sleep"
1081 " since there is interrupt from the firmware\n", __func__);
1083 adapter->if_ops.wakeup(adapter);
1084 adapter->hs_activated = false;
1085 adapter->is_hs_configured = false;
1086 adapter->is_suspended = false;
1087 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
1088 MWIFIEX_BSS_ROLE_ANY), false);
1092 * This function handles the command response of a sleep confirm command.
1094 * The function sets the card state to SLEEP if the response indicates success.
1097 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter,
1098 u8 *pbuf, u32 upld_len)
1100 struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf;
1101 struct mwifiex_private *priv =
1102 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1103 uint16_t result = le16_to_cpu(cmd->result);
1104 uint16_t command = le16_to_cpu(cmd->command);
1105 uint16_t seq_num = le16_to_cpu(cmd->seq_num);
1108 dev_err(adapter->dev, "%s: cmd size is 0\n", __func__);
1112 /* Get BSS number and corresponding priv */
1113 priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num),
1114 HostCmd_GET_BSS_TYPE(seq_num));
1116 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1118 /* Update sequence number */
1119 seq_num = HostCmd_GET_SEQ_NO(seq_num);
1120 /* Clear RET_BIT from HostCmd */
1121 command &= HostCmd_CMD_ID_MASK;
1123 if (command != HostCmd_CMD_802_11_PS_MODE_ENH) {
1124 dev_err(adapter->dev, "%s: received unexpected response for"
1125 " cmd %x, result = %x\n", __func__, command, result);
1130 dev_err(adapter->dev, "%s: sleep confirm cmd failed\n",
1132 adapter->pm_wakeup_card_req = false;
1133 adapter->ps_state = PS_STATE_AWAKE;
1136 adapter->pm_wakeup_card_req = true;
1137 if (adapter->is_hs_configured)
1138 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
1139 MWIFIEX_BSS_ROLE_ANY), true);
1140 adapter->ps_state = PS_STATE_SLEEP;
1141 cmd->command = cpu_to_le16(command);
1142 cmd->seq_num = cpu_to_le16(seq_num);
1144 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp);
1147 * This function prepares an enhanced power mode command.
1149 * This function can be used to disable power save or to configure
1150 * power save with auto PS or STA PS or auto deep sleep.
1152 * Preparation includes -
1153 * - Setting command ID, action and proper size
1154 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1155 * auto deep sleep TLV (as required)
1156 * - Ensuring correct endian-ness
1158 int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv,
1159 struct host_cmd_ds_command *cmd,
1160 u16 cmd_action, uint16_t ps_bitmap,
1161 struct mwifiex_ds_auto_ds *auto_ds)
1163 struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh =
1164 &cmd->params.psmode_enh;
1168 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
1169 if (cmd_action == DIS_AUTO_PS) {
1170 psmode_enh->action = cpu_to_le16(DIS_AUTO_PS);
1171 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1172 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1173 sizeof(psmode_enh->params.ps_bitmap));
1174 } else if (cmd_action == GET_PS) {
1175 psmode_enh->action = cpu_to_le16(GET_PS);
1176 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1177 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1178 sizeof(psmode_enh->params.ps_bitmap));
1179 } else if (cmd_action == EN_AUTO_PS) {
1180 psmode_enh->action = cpu_to_le16(EN_AUTO_PS);
1181 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1182 cmd_size = S_DS_GEN + sizeof(psmode_enh->action) +
1183 sizeof(psmode_enh->params.ps_bitmap);
1184 tlv = (u8 *) cmd + cmd_size;
1185 if (ps_bitmap & BITMAP_STA_PS) {
1186 struct mwifiex_adapter *adapter = priv->adapter;
1187 struct mwifiex_ie_types_ps_param *ps_tlv =
1188 (struct mwifiex_ie_types_ps_param *) tlv;
1189 struct mwifiex_ps_param *ps_mode = &ps_tlv->param;
1190 ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM);
1191 ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) -
1192 sizeof(struct mwifiex_ie_types_header));
1193 cmd_size += sizeof(*ps_tlv);
1194 tlv += sizeof(*ps_tlv);
1195 dev_dbg(adapter->dev, "cmd: PS Command: Enter PS\n");
1196 ps_mode->null_pkt_interval =
1197 cpu_to_le16(adapter->null_pkt_interval);
1198 ps_mode->multiple_dtims =
1199 cpu_to_le16(adapter->multiple_dtim);
1200 ps_mode->bcn_miss_timeout =
1201 cpu_to_le16(adapter->bcn_miss_time_out);
1202 ps_mode->local_listen_interval =
1203 cpu_to_le16(adapter->local_listen_interval);
1204 ps_mode->adhoc_wake_period =
1205 cpu_to_le16(adapter->adhoc_awake_period);
1206 ps_mode->delay_to_ps =
1207 cpu_to_le16(adapter->delay_to_ps);
1209 cpu_to_le16(adapter->enhanced_ps_mode);
1212 if (ps_bitmap & BITMAP_AUTO_DS) {
1213 struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv =
1214 (struct mwifiex_ie_types_auto_ds_param *) tlv;
1217 auto_ds_tlv->header.type =
1218 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM);
1219 auto_ds_tlv->header.len =
1220 cpu_to_le16(sizeof(*auto_ds_tlv) -
1221 sizeof(struct mwifiex_ie_types_header));
1222 cmd_size += sizeof(*auto_ds_tlv);
1223 tlv += sizeof(*auto_ds_tlv);
1225 idletime = auto_ds->idle_time;
1226 dev_dbg(priv->adapter->dev,
1227 "cmd: PS Command: Enter Auto Deep Sleep\n");
1228 auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime);
1230 cmd->size = cpu_to_le16(cmd_size);
1236 * This function handles the command response of an enhanced power mode
1239 * Handling includes changing the header fields into CPU format
1240 * and setting the current enhanced power mode in driver.
1242 int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv,
1243 struct host_cmd_ds_command *resp,
1244 struct mwifiex_ds_pm_cfg *pm_cfg)
1246 struct mwifiex_adapter *adapter = priv->adapter;
1247 struct host_cmd_ds_802_11_ps_mode_enh *ps_mode =
1248 &resp->params.psmode_enh;
1249 uint16_t action = le16_to_cpu(ps_mode->action);
1250 uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap);
1251 uint16_t auto_ps_bitmap =
1252 le16_to_cpu(ps_mode->params.ps_bitmap);
1254 dev_dbg(adapter->dev, "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1255 __func__, resp->result, action);
1256 if (action == EN_AUTO_PS) {
1257 if (auto_ps_bitmap & BITMAP_AUTO_DS) {
1258 dev_dbg(adapter->dev, "cmd: Enabled auto deep sleep\n");
1259 priv->adapter->is_deep_sleep = true;
1261 if (auto_ps_bitmap & BITMAP_STA_PS) {
1262 dev_dbg(adapter->dev, "cmd: Enabled STA power save\n");
1263 if (adapter->sleep_period.period)
1264 dev_dbg(adapter->dev, "cmd: set to uapsd/pps mode\n");
1266 } else if (action == DIS_AUTO_PS) {
1267 if (ps_bitmap & BITMAP_AUTO_DS) {
1268 priv->adapter->is_deep_sleep = false;
1269 dev_dbg(adapter->dev, "cmd: Disabled auto deep sleep\n");
1271 if (ps_bitmap & BITMAP_STA_PS) {
1272 dev_dbg(adapter->dev, "cmd: Disabled STA power save\n");
1273 if (adapter->sleep_period.period) {
1274 adapter->delay_null_pkt = false;
1275 adapter->tx_lock_flag = false;
1276 adapter->pps_uapsd_mode = false;
1279 } else if (action == GET_PS) {
1280 if (ps_bitmap & BITMAP_STA_PS)
1281 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
1283 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
1285 dev_dbg(adapter->dev, "cmd: ps_bitmap=%#x\n", ps_bitmap);
1288 /* This section is for get power save mode */
1289 if (ps_bitmap & BITMAP_STA_PS)
1290 pm_cfg->param.ps_mode = 1;
1292 pm_cfg->param.ps_mode = 0;
1299 * This function prepares command to get hardware specifications.
1301 * Preparation includes -
1302 * - Setting command ID, action and proper size
1303 * - Setting permanent address parameter
1304 * - Ensuring correct endian-ness
1306 int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv,
1307 struct host_cmd_ds_command *cmd)
1309 struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec;
1311 cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC);
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);
1320 * This function handles the command response of get hardware
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
1335 * - 11n capabilities
1336 * - MCS support fields
1339 int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv,
1340 struct host_cmd_ds_command *resp)
1342 struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec;
1343 struct mwifiex_adapter *adapter = priv->adapter;
1346 adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info);
1348 if (IS_SUPPORT_MULTI_BANDS(adapter))
1349 adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter);
1351 adapter->fw_bands = BAND_B;
1353 adapter->config_bands = adapter->fw_bands;
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;
1360 if (adapter->fw_bands & BAND_AN) {
1361 adapter->adhoc_start_band = BAND_A | BAND_AN;
1362 adapter->adhoc_11n_enabled = true;
1364 adapter->adhoc_start_band = BAND_A;
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;
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);
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));
1390 if (priv->curr_addr[0] == 0xff)
1391 memmove(priv->curr_addr, hw_spec->permanent_addr, ETH_ALEN);
1393 adapter->region_code = le16_to_cpu(hw_spec->region_code);
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])
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");
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;
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));