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;
144 if (!adapter || !cmd_node)
147 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
150 if (host_cmd == NULL || host_cmd->size == 0) {
151 dev_err(adapter->dev, "DNLD_CMD: host_cmd is null"
152 " or cmd size is 0, not sending\n");
153 if (cmd_node->wait_q_enabled)
154 adapter->cmd_wait_q.status = -1;
155 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
159 /* Set command sequence number */
161 host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
163 cmd_node->priv->bss_num,
164 cmd_node->priv->bss_type));
166 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
167 adapter->curr_cmd = cmd_node;
168 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
170 cmd_code = le16_to_cpu(host_cmd->command);
171 cmd_size = le16_to_cpu(host_cmd->size);
173 /* Adjust skb length */
174 if (cmd_node->cmd_skb->len > cmd_size)
176 * cmd_size is less than sizeof(struct host_cmd_ds_command).
177 * Trim off the unused portion.
179 skb_trim(cmd_node->cmd_skb, cmd_size);
180 else if (cmd_node->cmd_skb->len < cmd_size)
182 * cmd_size is larger than sizeof(struct host_cmd_ds_command)
183 * because we have appended custom IE TLV. Increase skb length
186 skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len);
188 do_gettimeofday(&tstamp);
189 dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"
191 tstamp.tv_sec, tstamp.tv_usec, cmd_code,
192 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)), cmd_size,
193 le16_to_cpu(host_cmd->seq_num));
195 if (adapter->iface_type == MWIFIEX_USB) {
196 tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD);
197 skb_push(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN);
198 memcpy(cmd_node->cmd_skb->data, &tmp, MWIFIEX_TYPE_LEN);
199 adapter->cmd_sent = true;
200 ret = adapter->if_ops.host_to_card(adapter,
201 MWIFIEX_USB_EP_CMD_EVENT,
202 cmd_node->cmd_skb, NULL);
203 skb_pull(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN);
205 cmd_node->cmd_skb = NULL;
207 skb_push(cmd_node->cmd_skb, INTF_HEADER_LEN);
208 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
209 cmd_node->cmd_skb, NULL);
210 skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN);
214 dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
215 if (adapter->iface_type == MWIFIEX_USB)
216 adapter->cmd_sent = false;
217 if (cmd_node->wait_q_enabled)
218 adapter->cmd_wait_q.status = -1;
219 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
221 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
222 adapter->curr_cmd = NULL;
223 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
225 adapter->dbg.num_cmd_host_to_card_failure++;
229 /* Save the last command id and action to debug log */
230 adapter->dbg.last_cmd_index =
231 (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM;
232 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code;
233 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] =
234 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN));
236 /* Clear BSS_NO_BITS from HostCmd */
237 cmd_code &= HostCmd_CMD_ID_MASK;
239 /* Setup the timer after transmit command */
240 mod_timer(&adapter->cmd_timer,
241 jiffies + (MWIFIEX_TIMER_10S * HZ) / 1000);
247 * This function downloads a sleep confirm command to the firmware.
249 * The function performs sanity tests, sets the command sequence
250 * number and size, converts the header fields to CPU format before
253 * No responses are needed for sleep confirm command.
255 static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter)
258 struct mwifiex_private *priv;
259 struct mwifiex_opt_sleep_confirm *sleep_cfm_buf =
260 (struct mwifiex_opt_sleep_confirm *)
261 adapter->sleep_cfm->data;
262 struct sk_buff *sleep_cfm_tmp;
265 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
267 sleep_cfm_buf->seq_num =
268 cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
269 (adapter->seq_num, priv->bss_num,
273 if (adapter->iface_type == MWIFIEX_USB) {
275 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm)
277 skb_put(sleep_cfm_tmp, sizeof(struct mwifiex_opt_sleep_confirm)
279 tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD);
280 memcpy(sleep_cfm_tmp->data, &tmp, MWIFIEX_TYPE_LEN);
281 memcpy(sleep_cfm_tmp->data + MWIFIEX_TYPE_LEN,
282 adapter->sleep_cfm->data,
283 sizeof(struct mwifiex_opt_sleep_confirm));
284 ret = adapter->if_ops.host_to_card(adapter,
285 MWIFIEX_USB_EP_CMD_EVENT,
286 sleep_cfm_tmp, NULL);
288 dev_kfree_skb_any(sleep_cfm_tmp);
290 skb_push(adapter->sleep_cfm, INTF_HEADER_LEN);
291 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
292 adapter->sleep_cfm, NULL);
293 skb_pull(adapter->sleep_cfm, INTF_HEADER_LEN);
297 dev_err(adapter->dev, "SLEEP_CFM: failed\n");
298 adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++;
301 if (GET_BSS_ROLE(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY))
302 == MWIFIEX_BSS_ROLE_STA) {
303 if (!sleep_cfm_buf->resp_ctrl)
304 /* Response is not needed for sleep
306 adapter->ps_state = PS_STATE_SLEEP;
308 adapter->ps_state = PS_STATE_SLEEP_CFM;
310 if (!sleep_cfm_buf->resp_ctrl &&
311 (adapter->is_hs_configured &&
312 !adapter->sleep_period.period)) {
313 adapter->pm_wakeup_card_req = true;
314 mwifiex_hs_activated_event(mwifiex_get_priv
315 (adapter, MWIFIEX_BSS_ROLE_STA), true);
323 * This function allocates the command buffers and links them to
324 * the command free queue.
326 * The driver uses a pre allocated number of command buffers, which
327 * are created at driver initializations and freed at driver cleanup.
328 * Every command needs to obtain a command buffer from this pool before
329 * it can be issued. The command free queue lists the command buffers
330 * currently free to use, while the command pending queue lists the
331 * command buffers already in use and awaiting handling. Command buffers
332 * are returned to the free queue after use.
334 int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter)
336 struct cmd_ctrl_node *cmd_array;
340 /* Allocate and initialize struct cmd_ctrl_node */
341 buf_size = sizeof(struct cmd_ctrl_node) * MWIFIEX_NUM_OF_CMD_BUFFER;
342 cmd_array = kzalloc(buf_size, GFP_KERNEL);
344 dev_err(adapter->dev, "%s: failed to alloc cmd_array\n",
349 adapter->cmd_pool = cmd_array;
350 memset(adapter->cmd_pool, 0, buf_size);
352 /* Allocate and initialize command buffers */
353 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
354 cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER);
355 if (!cmd_array[i].skb) {
356 dev_err(adapter->dev, "ALLOC_CMD_BUF: out of memory\n");
361 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++)
362 mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]);
368 * This function frees the command buffers.
370 * The function calls the completion callback for all the command
371 * buffers that still have response buffers associated with them.
373 int mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter)
375 struct cmd_ctrl_node *cmd_array;
378 /* Need to check if cmd pool is allocated or not */
379 if (!adapter->cmd_pool) {
380 dev_dbg(adapter->dev, "info: FREE_CMD_BUF: cmd_pool is null\n");
384 cmd_array = adapter->cmd_pool;
386 /* Release shared memory buffers */
387 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
388 if (cmd_array[i].skb) {
389 dev_dbg(adapter->dev, "cmd: free cmd buffer %d\n", i);
390 dev_kfree_skb_any(cmd_array[i].skb);
392 if (!cmd_array[i].resp_skb)
395 if (adapter->iface_type == MWIFIEX_USB)
396 adapter->if_ops.cmdrsp_complete(adapter,
397 cmd_array[i].resp_skb);
399 dev_kfree_skb_any(cmd_array[i].resp_skb);
401 /* Release struct cmd_ctrl_node */
402 if (adapter->cmd_pool) {
403 dev_dbg(adapter->dev, "cmd: free cmd pool\n");
404 kfree(adapter->cmd_pool);
405 adapter->cmd_pool = NULL;
412 * This function handles events generated by firmware.
414 * Event body of events received from firmware are not used (though they are
415 * saved), only the event ID is used. Some events are re-invoked by
416 * the driver, with a new event body.
418 * After processing, the function calls the completion callback
421 int mwifiex_process_event(struct mwifiex_adapter *adapter)
424 struct mwifiex_private *priv =
425 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
426 struct sk_buff *skb = adapter->event_skb;
427 u32 eventcause = adapter->event_cause;
428 struct timeval tstamp;
429 struct mwifiex_rxinfo *rx_info;
431 /* Save the last event to debug log */
432 adapter->dbg.last_event_index =
433 (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM;
434 adapter->dbg.last_event[adapter->dbg.last_event_index] =
437 /* Get BSS number and corresponding priv */
438 priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause),
439 EVENT_GET_BSS_TYPE(eventcause));
441 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
442 /* Clear BSS_NO_BITS from event */
443 eventcause &= EVENT_ID_MASK;
444 adapter->event_cause = eventcause;
447 rx_info = MWIFIEX_SKB_RXCB(skb);
448 rx_info->bss_num = priv->bss_num;
449 rx_info->bss_type = priv->bss_type;
452 if (eventcause != EVENT_PS_SLEEP && eventcause != EVENT_PS_AWAKE) {
453 do_gettimeofday(&tstamp);
454 dev_dbg(adapter->dev, "event: %lu.%lu: cause: %#x\n",
455 tstamp.tv_sec, tstamp.tv_usec, eventcause);
457 /* Handle PS_SLEEP/AWAKE events on STA */
458 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
460 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
463 if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
464 ret = mwifiex_process_uap_event(priv);
466 ret = mwifiex_process_sta_event(priv);
468 adapter->event_cause = 0;
469 adapter->event_skb = NULL;
470 adapter->if_ops.event_complete(adapter, skb);
476 * This function is used to send synchronous command to the firmware.
478 * it allocates a wait queue for the command and wait for the command
481 int mwifiex_send_cmd_sync(struct mwifiex_private *priv, uint16_t cmd_no,
482 u16 cmd_action, u32 cmd_oid, void *data_buf)
485 struct mwifiex_adapter *adapter = priv->adapter;
487 adapter->cmd_wait_q_required = true;
489 ret = mwifiex_send_cmd_async(priv, cmd_no, cmd_action, cmd_oid,
492 ret = mwifiex_wait_queue_complete(adapter);
499 * This function prepares a command and asynchronously send it to the firmware.
501 * Preparation includes -
502 * - Sanity tests to make sure the card is still present or the FW
504 * - Getting a new command node from the command free queue
505 * - Initializing the command node for default parameters
506 * - Fill up the non-default parameters and buffer pointers
507 * - Add the command to pending queue
509 int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no,
510 u16 cmd_action, u32 cmd_oid, void *data_buf)
513 struct mwifiex_adapter *adapter = priv->adapter;
514 struct cmd_ctrl_node *cmd_node;
515 struct host_cmd_ds_command *cmd_ptr;
518 pr_err("PREP_CMD: adapter is NULL\n");
522 if (adapter->is_suspended) {
523 dev_err(adapter->dev, "PREP_CMD: device in suspended state\n");
527 if (adapter->surprise_removed) {
528 dev_err(adapter->dev, "PREP_CMD: card is removed\n");
532 if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) {
533 if (cmd_no != HostCmd_CMD_FUNC_INIT) {
534 dev_err(adapter->dev, "PREP_CMD: FW in reset state\n");
539 /* Get a new command node */
540 cmd_node = mwifiex_get_cmd_node(adapter);
543 dev_err(adapter->dev, "PREP_CMD: no free cmd node\n");
547 /* Initialize the command node */
548 mwifiex_init_cmd_node(priv, cmd_node, cmd_oid, data_buf);
550 if (!cmd_node->cmd_skb) {
551 dev_err(adapter->dev, "PREP_CMD: no free cmd buf\n");
555 memset(skb_put(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)),
556 0, sizeof(struct host_cmd_ds_command));
558 cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
559 cmd_ptr->command = cpu_to_le16(cmd_no);
562 /* Prepare command */
565 case HostCmd_CMD_UAP_SYS_CONFIG:
566 case HostCmd_CMD_UAP_BSS_START:
567 case HostCmd_CMD_UAP_BSS_STOP:
568 ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action,
573 ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action,
579 ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf);
580 cmd_node->cmd_flag |= CMD_F_HOSTCMD;
583 /* Return error, since the command preparation failed */
585 dev_err(adapter->dev, "PREP_CMD: cmd %#x preparation failed\n",
587 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
592 if (cmd_no == HostCmd_CMD_802_11_SCAN) {
593 mwifiex_queue_scan_cmd(priv, cmd_node);
595 adapter->cmd_queued = cmd_node;
596 mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
597 queue_work(adapter->workqueue, &adapter->main_work);
604 * This function returns a command to the command free queue.
606 * The function also calls the completion callback if required, before
607 * cleaning the command node and re-inserting it into the free queue.
610 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter,
611 struct cmd_ctrl_node *cmd_node)
618 if (cmd_node->wait_q_enabled)
619 mwifiex_complete_cmd(adapter, cmd_node);
621 mwifiex_clean_cmd_node(adapter, cmd_node);
623 /* Insert node into cmd_free_q */
624 spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
625 list_add_tail(&cmd_node->list, &adapter->cmd_free_q);
626 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
630 * This function queues a command to the command pending queue.
632 * This in effect adds the command to the command list to be executed.
633 * Exit PS command is handled specially, by placing it always to the
634 * front of the command queue.
637 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter,
638 struct cmd_ctrl_node *cmd_node, u32 add_tail)
640 struct host_cmd_ds_command *host_cmd = NULL;
644 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
646 dev_err(adapter->dev, "QUEUE_CMD: host_cmd is NULL\n");
650 command = le16_to_cpu(host_cmd->command);
652 /* Exit_PS command needs to be queued in the header always. */
653 if (command == HostCmd_CMD_802_11_PS_MODE_ENH) {
654 struct host_cmd_ds_802_11_ps_mode_enh *pm =
655 &host_cmd->params.psmode_enh;
656 if ((le16_to_cpu(pm->action) == DIS_PS) ||
657 (le16_to_cpu(pm->action) == DIS_AUTO_PS)) {
658 if (adapter->ps_state != PS_STATE_AWAKE)
663 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
665 list_add_tail(&cmd_node->list, &adapter->cmd_pending_q);
667 list_add(&cmd_node->list, &adapter->cmd_pending_q);
668 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
670 dev_dbg(adapter->dev, "cmd: QUEUE_CMD: cmd=%#x is queued\n", command);
674 * This function executes the next command in command pending queue.
676 * This function will fail if a command is already in processing stage,
677 * otherwise it will dequeue the first command from the command pending
678 * queue and send to the firmware.
680 * If the device is currently in host sleep mode, any commands, except the
681 * host sleep configuration command will de-activate the host sleep. For PS
682 * mode, the function will put the firmware back to sleep if applicable.
684 int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter)
686 struct mwifiex_private *priv;
687 struct cmd_ctrl_node *cmd_node;
689 struct host_cmd_ds_command *host_cmd;
690 unsigned long cmd_flags;
691 unsigned long cmd_pending_q_flags;
693 /* Check if already in processing */
694 if (adapter->curr_cmd) {
695 dev_err(adapter->dev, "EXEC_NEXT_CMD: cmd in processing\n");
699 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
700 /* Check if any command is pending */
701 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
702 if (list_empty(&adapter->cmd_pending_q)) {
703 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
704 cmd_pending_q_flags);
705 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
708 cmd_node = list_first_entry(&adapter->cmd_pending_q,
709 struct cmd_ctrl_node, list);
710 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
711 cmd_pending_q_flags);
713 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
714 priv = cmd_node->priv;
716 if (adapter->ps_state != PS_STATE_AWAKE) {
717 dev_err(adapter->dev, "%s: cannot send cmd in sleep state,"
718 " this should not happen\n", __func__);
719 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
723 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
724 list_del(&cmd_node->list);
725 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
726 cmd_pending_q_flags);
728 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
729 ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node);
730 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
731 /* Any command sent to the firmware when host is in sleep
732 * mode should de-configure host sleep. We should skip the
733 * host sleep configuration command itself though
735 if (priv && (host_cmd->command !=
736 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) {
737 if (adapter->hs_activated) {
738 adapter->is_hs_configured = false;
739 mwifiex_hs_activated_event(priv, false);
747 * This function handles the command response.
749 * After processing, the function cleans the command node and puts
750 * it back to the command free queue.
752 int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
754 struct host_cmd_ds_command *resp;
755 struct mwifiex_private *priv =
756 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
758 uint16_t orig_cmdresp_no;
760 uint16_t cmdresp_result;
761 struct timeval tstamp;
764 /* Now we got response from FW, cancel the command timer */
765 del_timer(&adapter->cmd_timer);
767 if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) {
768 resp = (struct host_cmd_ds_command *) adapter->upld_buf;
769 dev_err(adapter->dev, "CMD_RESP: NULL curr_cmd, %#x\n",
770 le16_to_cpu(resp->command));
774 adapter->num_cmd_timeout = 0;
776 resp = (struct host_cmd_ds_command *) adapter->curr_cmd->resp_skb->data;
777 if (adapter->curr_cmd->cmd_flag & CMD_F_CANCELED) {
778 dev_err(adapter->dev, "CMD_RESP: %#x been canceled\n",
779 le16_to_cpu(resp->command));
780 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
781 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
782 adapter->curr_cmd = NULL;
783 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
787 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
788 /* Copy original response back to response buffer */
789 struct mwifiex_ds_misc_cmd *hostcmd;
790 uint16_t size = le16_to_cpu(resp->size);
791 dev_dbg(adapter->dev, "info: host cmd resp size = %d\n", size);
792 size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER);
793 if (adapter->curr_cmd->data_buf) {
794 hostcmd = adapter->curr_cmd->data_buf;
796 memcpy(hostcmd->cmd, resp, size);
799 orig_cmdresp_no = le16_to_cpu(resp->command);
801 /* Get BSS number and corresponding priv */
802 priv = mwifiex_get_priv_by_id(adapter,
803 HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)),
804 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num)));
806 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
807 /* Clear RET_BIT from HostCmd */
808 resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK);
810 cmdresp_no = le16_to_cpu(resp->command);
811 cmdresp_result = le16_to_cpu(resp->result);
813 /* Save the last command response to debug log */
814 adapter->dbg.last_cmd_resp_index =
815 (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM;
816 adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] =
819 do_gettimeofday(&tstamp);
820 dev_dbg(adapter->dev, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
821 " len %d, seqno 0x%x\n",
822 tstamp.tv_sec, tstamp.tv_usec, orig_cmdresp_no, cmdresp_result,
823 le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num));
825 if (!(orig_cmdresp_no & HostCmd_RET_BIT)) {
826 dev_err(adapter->dev, "CMD_RESP: invalid cmd resp\n");
827 if (adapter->curr_cmd->wait_q_enabled)
828 adapter->cmd_wait_q.status = -1;
830 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
831 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
832 adapter->curr_cmd = NULL;
833 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
837 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
838 adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD;
839 if ((cmdresp_result == HostCmd_RESULT_OK) &&
840 (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH))
841 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
843 /* handle response */
844 ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp);
847 /* Check init command response */
848 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) {
850 dev_err(adapter->dev, "%s: cmd %#x failed during "
851 "initialization\n", __func__, cmdresp_no);
852 mwifiex_init_fw_complete(adapter);
854 } else if (adapter->last_init_cmd == cmdresp_no)
855 adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE;
858 if (adapter->curr_cmd) {
859 if (adapter->curr_cmd->wait_q_enabled)
860 adapter->cmd_wait_q.status = ret;
862 /* Clean up and put current command back to cmd_free_q */
863 mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
865 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
866 adapter->curr_cmd = NULL;
867 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
874 * This function handles the timeout of command sending.
876 * It will re-send the same command again.
879 mwifiex_cmd_timeout_func(unsigned long function_context)
881 struct mwifiex_adapter *adapter =
882 (struct mwifiex_adapter *) function_context;
883 struct cmd_ctrl_node *cmd_node;
884 struct timeval tstamp;
886 adapter->num_cmd_timeout++;
887 adapter->dbg.num_cmd_timeout++;
888 if (!adapter->curr_cmd) {
889 dev_dbg(adapter->dev, "cmd: empty curr_cmd\n");
892 cmd_node = adapter->curr_cmd;
893 if (cmd_node->wait_q_enabled)
894 adapter->cmd_wait_q.status = -ETIMEDOUT;
897 adapter->dbg.timeout_cmd_id =
898 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index];
899 adapter->dbg.timeout_cmd_act =
900 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index];
901 do_gettimeofday(&tstamp);
902 dev_err(adapter->dev,
903 "%s: Timeout cmd id (%lu.%lu) = %#x, act = %#x\n",
904 __func__, tstamp.tv_sec, tstamp.tv_usec,
905 adapter->dbg.timeout_cmd_id,
906 adapter->dbg.timeout_cmd_act);
908 dev_err(adapter->dev, "num_data_h2c_failure = %d\n",
909 adapter->dbg.num_tx_host_to_card_failure);
910 dev_err(adapter->dev, "num_cmd_h2c_failure = %d\n",
911 adapter->dbg.num_cmd_host_to_card_failure);
913 dev_err(adapter->dev, "num_cmd_timeout = %d\n",
914 adapter->dbg.num_cmd_timeout);
915 dev_err(adapter->dev, "num_tx_timeout = %d\n",
916 adapter->dbg.num_tx_timeout);
918 dev_err(adapter->dev, "last_cmd_index = %d\n",
919 adapter->dbg.last_cmd_index);
920 print_hex_dump_bytes("last_cmd_id: ", DUMP_PREFIX_OFFSET,
921 adapter->dbg.last_cmd_id, DBG_CMD_NUM);
922 print_hex_dump_bytes("last_cmd_act: ", DUMP_PREFIX_OFFSET,
923 adapter->dbg.last_cmd_act, DBG_CMD_NUM);
925 dev_err(adapter->dev, "last_cmd_resp_index = %d\n",
926 adapter->dbg.last_cmd_resp_index);
927 print_hex_dump_bytes("last_cmd_resp_id: ", DUMP_PREFIX_OFFSET,
928 adapter->dbg.last_cmd_resp_id,
931 dev_err(adapter->dev, "last_event_index = %d\n",
932 adapter->dbg.last_event_index);
933 print_hex_dump_bytes("last_event: ", DUMP_PREFIX_OFFSET,
934 adapter->dbg.last_event, DBG_CMD_NUM);
936 dev_err(adapter->dev, "data_sent=%d cmd_sent=%d\n",
937 adapter->data_sent, adapter->cmd_sent);
939 dev_err(adapter->dev, "ps_mode=%d ps_state=%d\n",
940 adapter->ps_mode, adapter->ps_state);
942 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
943 mwifiex_init_fw_complete(adapter);
947 * This function cancels all the pending commands.
949 * The current command, all commands in command pending queue and all scan
950 * commands in scan pending queue are cancelled. All the completion callbacks
951 * are called with failure status to ensure cleanup.
954 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter)
956 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
959 /* Cancel current cmd */
960 if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) {
961 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
962 adapter->curr_cmd->wait_q_enabled = false;
963 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
964 adapter->cmd_wait_q.status = -1;
965 mwifiex_complete_cmd(adapter, adapter->curr_cmd);
967 /* Cancel all pending command */
968 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
969 list_for_each_entry_safe(cmd_node, tmp_node,
970 &adapter->cmd_pending_q, list) {
971 list_del(&cmd_node->list);
972 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
974 if (cmd_node->wait_q_enabled) {
975 adapter->cmd_wait_q.status = -1;
976 mwifiex_complete_cmd(adapter, cmd_node);
977 cmd_node->wait_q_enabled = false;
979 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
980 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
982 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
984 /* Cancel all pending scan command */
985 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
986 list_for_each_entry_safe(cmd_node, tmp_node,
987 &adapter->scan_pending_q, list) {
988 list_del(&cmd_node->list);
989 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
991 cmd_node->wait_q_enabled = false;
992 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
993 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
995 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
997 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
998 adapter->scan_processing = false;
999 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
1003 * This function cancels all pending commands that matches with
1004 * the given IOCTL request.
1006 * Both the current command buffer and the pending command queue are
1007 * searched for matching IOCTL request. The completion callback of
1008 * the matched command is called with failure status to ensure cleanup.
1009 * In case of scan commands, all pending commands in scan pending queue
1013 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
1015 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
1016 unsigned long cmd_flags;
1017 unsigned long scan_pending_q_flags;
1018 uint16_t cancel_scan_cmd = false;
1020 if ((adapter->curr_cmd) &&
1021 (adapter->curr_cmd->wait_q_enabled)) {
1022 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
1023 cmd_node = adapter->curr_cmd;
1024 cmd_node->wait_q_enabled = false;
1025 cmd_node->cmd_flag |= CMD_F_CANCELED;
1026 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
1027 mwifiex_complete_cmd(adapter, adapter->curr_cmd);
1028 adapter->curr_cmd = NULL;
1029 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
1032 /* Cancel all pending scan command */
1033 spin_lock_irqsave(&adapter->scan_pending_q_lock,
1034 scan_pending_q_flags);
1035 list_for_each_entry_safe(cmd_node, tmp_node,
1036 &adapter->scan_pending_q, list) {
1037 list_del(&cmd_node->list);
1038 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
1039 scan_pending_q_flags);
1040 cmd_node->wait_q_enabled = false;
1041 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
1042 spin_lock_irqsave(&adapter->scan_pending_q_lock,
1043 scan_pending_q_flags);
1044 cancel_scan_cmd = true;
1046 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
1047 scan_pending_q_flags);
1049 if (cancel_scan_cmd) {
1050 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
1051 adapter->scan_processing = false;
1052 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
1054 adapter->cmd_wait_q.status = -1;
1058 * This function sends the sleep confirm command to firmware, if
1061 * The sleep confirm command cannot be issued if command response,
1062 * data response or event response is awaiting handling, or if we
1063 * are in the middle of sending a command, or expecting a command
1067 mwifiex_check_ps_cond(struct mwifiex_adapter *adapter)
1069 if (!adapter->cmd_sent &&
1070 !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
1071 mwifiex_dnld_sleep_confirm_cmd(adapter);
1073 dev_dbg(adapter->dev,
1074 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1075 (adapter->cmd_sent) ? "D" : "",
1076 (adapter->curr_cmd) ? "C" : "",
1077 (IS_CARD_RX_RCVD(adapter)) ? "R" : "");
1081 * This function sends a Host Sleep activated event to applications.
1083 * This event is generated by the driver, with a blank event body.
1086 mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated)
1089 if (priv->adapter->is_hs_configured) {
1090 priv->adapter->hs_activated = true;
1091 mwifiex_update_rxreor_flags(priv->adapter,
1092 RXREOR_FORCE_NO_DROP);
1093 dev_dbg(priv->adapter->dev, "event: hs_activated\n");
1094 priv->adapter->hs_activate_wait_q_woken = true;
1095 wake_up_interruptible(
1096 &priv->adapter->hs_activate_wait_q);
1098 dev_dbg(priv->adapter->dev, "event: HS not configured\n");
1101 dev_dbg(priv->adapter->dev, "event: hs_deactivated\n");
1102 priv->adapter->hs_activated = false;
1107 * This function handles the command response of a Host Sleep configuration
1110 * Handling includes changing the header fields into CPU format
1111 * and setting the current host sleep activation status in driver.
1113 * In case host sleep status change, the function generates an event to
1114 * notify the applications.
1116 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv,
1117 struct host_cmd_ds_command *resp)
1119 struct mwifiex_adapter *adapter = priv->adapter;
1120 struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg =
1121 &resp->params.opt_hs_cfg;
1122 uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions);
1124 if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE) &&
1125 adapter->iface_type == MWIFIEX_SDIO) {
1126 mwifiex_hs_activated_event(priv, true);
1129 dev_dbg(adapter->dev, "cmd: CMD_RESP: HS_CFG cmd reply"
1130 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1131 resp->result, conditions,
1132 phs_cfg->params.hs_config.gpio,
1133 phs_cfg->params.hs_config.gap);
1135 if (conditions != HOST_SLEEP_CFG_CANCEL) {
1136 adapter->is_hs_configured = true;
1137 if (adapter->iface_type == MWIFIEX_USB ||
1138 adapter->iface_type == MWIFIEX_PCIE)
1139 mwifiex_hs_activated_event(priv, true);
1141 adapter->is_hs_configured = false;
1142 if (adapter->hs_activated)
1143 mwifiex_hs_activated_event(priv, false);
1150 * This function wakes up the adapter and generates a Host Sleep
1151 * cancel event on receiving the power up interrupt.
1154 mwifiex_process_hs_config(struct mwifiex_adapter *adapter)
1156 dev_dbg(adapter->dev, "info: %s: auto cancelling host sleep"
1157 " since there is interrupt from the firmware\n", __func__);
1159 adapter->if_ops.wakeup(adapter);
1160 adapter->hs_activated = false;
1161 adapter->is_hs_configured = false;
1162 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
1163 MWIFIEX_BSS_ROLE_ANY),
1166 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config);
1169 * This function handles the command response of a sleep confirm command.
1171 * The function sets the card state to SLEEP if the response indicates success.
1174 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter,
1175 u8 *pbuf, u32 upld_len)
1177 struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf;
1178 struct mwifiex_private *priv =
1179 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1180 uint16_t result = le16_to_cpu(cmd->result);
1181 uint16_t command = le16_to_cpu(cmd->command);
1182 uint16_t seq_num = le16_to_cpu(cmd->seq_num);
1185 dev_err(adapter->dev, "%s: cmd size is 0\n", __func__);
1189 /* Get BSS number and corresponding priv */
1190 priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num),
1191 HostCmd_GET_BSS_TYPE(seq_num));
1193 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1195 /* Update sequence number */
1196 seq_num = HostCmd_GET_SEQ_NO(seq_num);
1197 /* Clear RET_BIT from HostCmd */
1198 command &= HostCmd_CMD_ID_MASK;
1200 if (command != HostCmd_CMD_802_11_PS_MODE_ENH) {
1201 dev_err(adapter->dev,
1202 "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
1203 __func__, command, result);
1208 dev_err(adapter->dev, "%s: sleep confirm cmd failed\n",
1210 adapter->pm_wakeup_card_req = false;
1211 adapter->ps_state = PS_STATE_AWAKE;
1214 adapter->pm_wakeup_card_req = true;
1215 if (adapter->is_hs_configured)
1216 mwifiex_hs_activated_event(mwifiex_get_priv
1217 (adapter, MWIFIEX_BSS_ROLE_ANY),
1219 adapter->ps_state = PS_STATE_SLEEP;
1220 cmd->command = cpu_to_le16(command);
1221 cmd->seq_num = cpu_to_le16(seq_num);
1223 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp);
1226 * This function prepares an enhanced power mode command.
1228 * This function can be used to disable power save or to configure
1229 * power save with auto PS or STA PS or auto deep sleep.
1231 * Preparation includes -
1232 * - Setting command ID, action and proper size
1233 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1234 * auto deep sleep TLV (as required)
1235 * - Ensuring correct endian-ness
1237 int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv,
1238 struct host_cmd_ds_command *cmd,
1239 u16 cmd_action, uint16_t ps_bitmap,
1240 struct mwifiex_ds_auto_ds *auto_ds)
1242 struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh =
1243 &cmd->params.psmode_enh;
1247 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
1248 if (cmd_action == DIS_AUTO_PS) {
1249 psmode_enh->action = cpu_to_le16(DIS_AUTO_PS);
1250 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1251 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1252 sizeof(psmode_enh->params.ps_bitmap));
1253 } else if (cmd_action == GET_PS) {
1254 psmode_enh->action = cpu_to_le16(GET_PS);
1255 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1256 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1257 sizeof(psmode_enh->params.ps_bitmap));
1258 } else if (cmd_action == EN_AUTO_PS) {
1259 psmode_enh->action = cpu_to_le16(EN_AUTO_PS);
1260 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1261 cmd_size = S_DS_GEN + sizeof(psmode_enh->action) +
1262 sizeof(psmode_enh->params.ps_bitmap);
1263 tlv = (u8 *) cmd + cmd_size;
1264 if (ps_bitmap & BITMAP_STA_PS) {
1265 struct mwifiex_adapter *adapter = priv->adapter;
1266 struct mwifiex_ie_types_ps_param *ps_tlv =
1267 (struct mwifiex_ie_types_ps_param *) tlv;
1268 struct mwifiex_ps_param *ps_mode = &ps_tlv->param;
1269 ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM);
1270 ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) -
1271 sizeof(struct mwifiex_ie_types_header));
1272 cmd_size += sizeof(*ps_tlv);
1273 tlv += sizeof(*ps_tlv);
1274 dev_dbg(adapter->dev, "cmd: PS Command: Enter PS\n");
1275 ps_mode->null_pkt_interval =
1276 cpu_to_le16(adapter->null_pkt_interval);
1277 ps_mode->multiple_dtims =
1278 cpu_to_le16(adapter->multiple_dtim);
1279 ps_mode->bcn_miss_timeout =
1280 cpu_to_le16(adapter->bcn_miss_time_out);
1281 ps_mode->local_listen_interval =
1282 cpu_to_le16(adapter->local_listen_interval);
1283 ps_mode->adhoc_wake_period =
1284 cpu_to_le16(adapter->adhoc_awake_period);
1285 ps_mode->delay_to_ps =
1286 cpu_to_le16(adapter->delay_to_ps);
1287 ps_mode->mode = cpu_to_le16(adapter->enhanced_ps_mode);
1290 if (ps_bitmap & BITMAP_AUTO_DS) {
1291 struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv =
1292 (struct mwifiex_ie_types_auto_ds_param *) tlv;
1295 auto_ds_tlv->header.type =
1296 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM);
1297 auto_ds_tlv->header.len =
1298 cpu_to_le16(sizeof(*auto_ds_tlv) -
1299 sizeof(struct mwifiex_ie_types_header));
1300 cmd_size += sizeof(*auto_ds_tlv);
1301 tlv += sizeof(*auto_ds_tlv);
1303 idletime = auto_ds->idle_time;
1304 dev_dbg(priv->adapter->dev,
1305 "cmd: PS Command: Enter Auto Deep Sleep\n");
1306 auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime);
1308 cmd->size = cpu_to_le16(cmd_size);
1314 * This function handles the command response of an enhanced power mode
1317 * Handling includes changing the header fields into CPU format
1318 * and setting the current enhanced power mode in driver.
1320 int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv,
1321 struct host_cmd_ds_command *resp,
1322 struct mwifiex_ds_pm_cfg *pm_cfg)
1324 struct mwifiex_adapter *adapter = priv->adapter;
1325 struct host_cmd_ds_802_11_ps_mode_enh *ps_mode =
1326 &resp->params.psmode_enh;
1327 uint16_t action = le16_to_cpu(ps_mode->action);
1328 uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap);
1329 uint16_t auto_ps_bitmap =
1330 le16_to_cpu(ps_mode->params.ps_bitmap);
1332 dev_dbg(adapter->dev,
1333 "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1334 __func__, resp->result, action);
1335 if (action == EN_AUTO_PS) {
1336 if (auto_ps_bitmap & BITMAP_AUTO_DS) {
1337 dev_dbg(adapter->dev, "cmd: Enabled auto deep sleep\n");
1338 priv->adapter->is_deep_sleep = true;
1340 if (auto_ps_bitmap & BITMAP_STA_PS) {
1341 dev_dbg(adapter->dev, "cmd: Enabled STA power save\n");
1342 if (adapter->sleep_period.period)
1343 dev_dbg(adapter->dev,
1344 "cmd: set to uapsd/pps mode\n");
1346 } else if (action == DIS_AUTO_PS) {
1347 if (ps_bitmap & BITMAP_AUTO_DS) {
1348 priv->adapter->is_deep_sleep = false;
1349 dev_dbg(adapter->dev, "cmd: Disabled auto deep sleep\n");
1351 if (ps_bitmap & BITMAP_STA_PS) {
1352 dev_dbg(adapter->dev, "cmd: Disabled STA power save\n");
1353 if (adapter->sleep_period.period) {
1354 adapter->delay_null_pkt = false;
1355 adapter->tx_lock_flag = false;
1356 adapter->pps_uapsd_mode = false;
1359 } else if (action == GET_PS) {
1360 if (ps_bitmap & BITMAP_STA_PS)
1361 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
1363 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
1365 dev_dbg(adapter->dev, "cmd: ps_bitmap=%#x\n", ps_bitmap);
1368 /* This section is for get power save mode */
1369 if (ps_bitmap & BITMAP_STA_PS)
1370 pm_cfg->param.ps_mode = 1;
1372 pm_cfg->param.ps_mode = 0;
1379 * This function prepares command to get hardware specifications.
1381 * Preparation includes -
1382 * - Setting command ID, action and proper size
1383 * - Setting permanent address parameter
1384 * - Ensuring correct endian-ness
1386 int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv,
1387 struct host_cmd_ds_command *cmd)
1389 struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec;
1391 cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC);
1393 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN);
1394 memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN);
1400 * This function handles the command response of get hardware
1403 * Handling includes changing the header fields into CPU format
1404 * and saving/updating the following parameters in driver -
1405 * - Firmware capability information
1406 * - Firmware band settings
1407 * - Ad-hoc start band and channel
1408 * - Ad-hoc 11n activation status
1409 * - Firmware release number
1410 * - Number of antennas
1411 * - Hardware address
1412 * - Hardware interface version
1413 * - Firmware version
1415 * - 11n capabilities
1416 * - MCS support fields
1419 int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv,
1420 struct host_cmd_ds_command *resp)
1422 struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec;
1423 struct mwifiex_adapter *adapter = priv->adapter;
1426 adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info);
1428 if (IS_SUPPORT_MULTI_BANDS(adapter))
1429 adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter);
1431 adapter->fw_bands = BAND_B;
1433 adapter->config_bands = adapter->fw_bands;
1435 if (adapter->fw_bands & BAND_A) {
1436 if (adapter->fw_bands & BAND_GN) {
1437 adapter->config_bands |= BAND_AN;
1438 adapter->fw_bands |= BAND_AN;
1440 if (adapter->fw_bands & BAND_AN) {
1441 adapter->adhoc_start_band = BAND_A | BAND_AN;
1442 adapter->adhoc_11n_enabled = true;
1444 adapter->adhoc_start_band = BAND_A;
1446 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A;
1447 } else if (adapter->fw_bands & BAND_GN) {
1448 adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN;
1449 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1450 adapter->adhoc_11n_enabled = true;
1451 } else if (adapter->fw_bands & BAND_G) {
1452 adapter->adhoc_start_band = BAND_G | BAND_B;
1453 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1454 } else if (adapter->fw_bands & BAND_B) {
1455 adapter->adhoc_start_band = BAND_B;
1456 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1459 adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number);
1460 adapter->number_of_antenna = le16_to_cpu(hw_spec->number_of_antenna);
1462 dev_dbg(adapter->dev, "info: GET_HW_SPEC: fw_release_number- %#x\n",
1463 adapter->fw_release_number);
1464 dev_dbg(adapter->dev, "info: GET_HW_SPEC: permanent addr: %pM\n",
1465 hw_spec->permanent_addr);
1466 dev_dbg(adapter->dev,
1467 "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
1468 le16_to_cpu(hw_spec->hw_if_version),
1469 le16_to_cpu(hw_spec->version));
1471 if (priv->curr_addr[0] == 0xff)
1472 memmove(priv->curr_addr, hw_spec->permanent_addr, ETH_ALEN);
1474 adapter->region_code = le16_to_cpu(hw_spec->region_code);
1476 for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++)
1477 /* Use the region code to search for the index */
1478 if (adapter->region_code == region_code_index[i])
1481 /* If it's unidentified region code, use the default (USA) */
1482 if (i >= MWIFIEX_MAX_REGION_CODE) {
1483 adapter->region_code = 0x10;
1484 dev_dbg(adapter->dev,
1485 "cmd: unknown region code, use default (USA)\n");
1488 adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap);
1489 adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support;
1491 if (adapter->if_ops.update_mp_end_port)
1492 adapter->if_ops.update_mp_end_port(adapter,
1493 le16_to_cpu(hw_spec->mp_end_port));