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.
30 * This function initializes a command node.
32 * The actual allocation of the node is not done by this function. It only
33 * initiates a node by filling it with default parameters. Similarly,
34 * allocation of the different buffers used (IOCTL buffer, data buffer) are
35 * not done by this function either.
38 mwifiex_init_cmd_node(struct mwifiex_private *priv,
39 struct cmd_ctrl_node *cmd_node,
40 u32 cmd_oid, void *data_buf, bool sync)
42 cmd_node->priv = priv;
43 cmd_node->cmd_oid = cmd_oid;
45 cmd_node->wait_q_enabled = true;
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_recycle_cmd_node(adapter, cmd_node);
159 cmd_code = le16_to_cpu(host_cmd->command);
160 cmd_size = le16_to_cpu(host_cmd->size);
162 if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET &&
163 cmd_code != HostCmd_CMD_FUNC_SHUTDOWN &&
164 cmd_code != HostCmd_CMD_FUNC_INIT) {
165 dev_err(adapter->dev,
166 "DNLD_CMD: FW in reset state, ignore cmd %#x\n",
168 if (cmd_node->wait_q_enabled)
169 mwifiex_complete_cmd(adapter, cmd_node);
170 mwifiex_recycle_cmd_node(adapter, cmd_node);
171 queue_work(adapter->workqueue, &adapter->main_work);
175 /* Set command sequence number */
177 host_cmd->seq_num = cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
179 cmd_node->priv->bss_num,
180 cmd_node->priv->bss_type));
182 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
183 adapter->curr_cmd = cmd_node;
184 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
186 /* Adjust skb length */
187 if (cmd_node->cmd_skb->len > cmd_size)
189 * cmd_size is less than sizeof(struct host_cmd_ds_command).
190 * Trim off the unused portion.
192 skb_trim(cmd_node->cmd_skb, cmd_size);
193 else if (cmd_node->cmd_skb->len < cmd_size)
195 * cmd_size is larger than sizeof(struct host_cmd_ds_command)
196 * because we have appended custom IE TLV. Increase skb length
199 skb_put(cmd_node->cmd_skb, cmd_size - cmd_node->cmd_skb->len);
201 do_gettimeofday(&tstamp);
202 dev_dbg(adapter->dev, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"
204 tstamp.tv_sec, tstamp.tv_usec, cmd_code,
205 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN)), cmd_size,
206 le16_to_cpu(host_cmd->seq_num));
208 if (adapter->iface_type == MWIFIEX_USB) {
209 tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD);
210 skb_push(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN);
211 memcpy(cmd_node->cmd_skb->data, &tmp, MWIFIEX_TYPE_LEN);
212 adapter->cmd_sent = true;
213 ret = adapter->if_ops.host_to_card(adapter,
214 MWIFIEX_USB_EP_CMD_EVENT,
215 cmd_node->cmd_skb, NULL);
216 skb_pull(cmd_node->cmd_skb, MWIFIEX_TYPE_LEN);
218 cmd_node->cmd_skb = NULL;
220 skb_push(cmd_node->cmd_skb, INTF_HEADER_LEN);
221 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
222 cmd_node->cmd_skb, NULL);
223 skb_pull(cmd_node->cmd_skb, INTF_HEADER_LEN);
227 dev_err(adapter->dev, "DNLD_CMD: host to card failed\n");
228 if (adapter->iface_type == MWIFIEX_USB)
229 adapter->cmd_sent = false;
230 if (cmd_node->wait_q_enabled)
231 adapter->cmd_wait_q.status = -1;
232 mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
234 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
235 adapter->curr_cmd = NULL;
236 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
238 adapter->dbg.num_cmd_host_to_card_failure++;
242 /* Save the last command id and action to debug log */
243 adapter->dbg.last_cmd_index =
244 (adapter->dbg.last_cmd_index + 1) % DBG_CMD_NUM;
245 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index] = cmd_code;
246 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index] =
247 le16_to_cpu(*(__le16 *) ((u8 *) host_cmd + S_DS_GEN));
249 /* Clear BSS_NO_BITS from HostCmd */
250 cmd_code &= HostCmd_CMD_ID_MASK;
252 /* Setup the timer after transmit command */
253 mod_timer(&adapter->cmd_timer,
254 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
260 * This function downloads a sleep confirm command to the firmware.
262 * The function performs sanity tests, sets the command sequence
263 * number and size, converts the header fields to CPU format before
266 * No responses are needed for sleep confirm command.
268 static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter *adapter)
271 struct mwifiex_private *priv;
272 struct mwifiex_opt_sleep_confirm *sleep_cfm_buf =
273 (struct mwifiex_opt_sleep_confirm *)
274 adapter->sleep_cfm->data;
275 struct sk_buff *sleep_cfm_tmp;
278 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
281 sleep_cfm_buf->seq_num =
282 cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
283 (adapter->seq_num, priv->bss_num,
286 if (adapter->iface_type == MWIFIEX_USB) {
288 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm)
290 skb_put(sleep_cfm_tmp, sizeof(struct mwifiex_opt_sleep_confirm)
292 tmp = cpu_to_le32(MWIFIEX_USB_TYPE_CMD);
293 memcpy(sleep_cfm_tmp->data, &tmp, MWIFIEX_TYPE_LEN);
294 memcpy(sleep_cfm_tmp->data + MWIFIEX_TYPE_LEN,
295 adapter->sleep_cfm->data,
296 sizeof(struct mwifiex_opt_sleep_confirm));
297 ret = adapter->if_ops.host_to_card(adapter,
298 MWIFIEX_USB_EP_CMD_EVENT,
299 sleep_cfm_tmp, NULL);
301 dev_kfree_skb_any(sleep_cfm_tmp);
303 skb_push(adapter->sleep_cfm, INTF_HEADER_LEN);
304 ret = adapter->if_ops.host_to_card(adapter, MWIFIEX_TYPE_CMD,
305 adapter->sleep_cfm, NULL);
306 skb_pull(adapter->sleep_cfm, INTF_HEADER_LEN);
310 dev_err(adapter->dev, "SLEEP_CFM: failed\n");
311 adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure++;
314 if (GET_BSS_ROLE(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY))
315 == MWIFIEX_BSS_ROLE_STA) {
316 if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl))
317 /* Response is not needed for sleep
319 adapter->ps_state = PS_STATE_SLEEP;
321 adapter->ps_state = PS_STATE_SLEEP_CFM;
323 if (!le16_to_cpu(sleep_cfm_buf->resp_ctrl) &&
324 (adapter->is_hs_configured &&
325 !adapter->sleep_period.period)) {
326 adapter->pm_wakeup_card_req = true;
327 mwifiex_hs_activated_event(mwifiex_get_priv
328 (adapter, MWIFIEX_BSS_ROLE_STA), true);
336 * This function allocates the command buffers and links them to
337 * the command free queue.
339 * The driver uses a pre allocated number of command buffers, which
340 * are created at driver initializations and freed at driver cleanup.
341 * Every command needs to obtain a command buffer from this pool before
342 * it can be issued. The command free queue lists the command buffers
343 * currently free to use, while the command pending queue lists the
344 * command buffers already in use and awaiting handling. Command buffers
345 * are returned to the free queue after use.
347 int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter *adapter)
349 struct cmd_ctrl_node *cmd_array;
352 /* Allocate and initialize struct cmd_ctrl_node */
353 cmd_array = kcalloc(MWIFIEX_NUM_OF_CMD_BUFFER,
354 sizeof(struct cmd_ctrl_node), GFP_KERNEL);
358 adapter->cmd_pool = cmd_array;
360 /* Allocate and initialize command buffers */
361 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
362 cmd_array[i].skb = dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER);
363 if (!cmd_array[i].skb) {
364 dev_err(adapter->dev, "ALLOC_CMD_BUF: out of memory\n");
369 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++)
370 mwifiex_insert_cmd_to_free_q(adapter, &cmd_array[i]);
376 * This function frees the command buffers.
378 * The function calls the completion callback for all the command
379 * buffers that still have response buffers associated with them.
381 int mwifiex_free_cmd_buffer(struct mwifiex_adapter *adapter)
383 struct cmd_ctrl_node *cmd_array;
386 /* Need to check if cmd pool is allocated or not */
387 if (!adapter->cmd_pool) {
388 dev_dbg(adapter->dev, "info: FREE_CMD_BUF: cmd_pool is null\n");
392 cmd_array = adapter->cmd_pool;
394 /* Release shared memory buffers */
395 for (i = 0; i < MWIFIEX_NUM_OF_CMD_BUFFER; i++) {
396 if (cmd_array[i].skb) {
397 dev_dbg(adapter->dev, "cmd: free cmd buffer %d\n", i);
398 dev_kfree_skb_any(cmd_array[i].skb);
400 if (!cmd_array[i].resp_skb)
403 if (adapter->iface_type == MWIFIEX_USB)
404 adapter->if_ops.cmdrsp_complete(adapter,
405 cmd_array[i].resp_skb);
407 dev_kfree_skb_any(cmd_array[i].resp_skb);
409 /* Release struct cmd_ctrl_node */
410 if (adapter->cmd_pool) {
411 dev_dbg(adapter->dev, "cmd: free cmd pool\n");
412 kfree(adapter->cmd_pool);
413 adapter->cmd_pool = NULL;
420 * This function handles events generated by firmware.
422 * Event body of events received from firmware are not used (though they are
423 * saved), only the event ID is used. Some events are re-invoked by
424 * the driver, with a new event body.
426 * After processing, the function calls the completion callback
429 int mwifiex_process_event(struct mwifiex_adapter *adapter)
432 struct mwifiex_private *priv =
433 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
434 struct sk_buff *skb = adapter->event_skb;
435 u32 eventcause = adapter->event_cause;
436 struct timeval tstamp;
437 struct mwifiex_rxinfo *rx_info;
439 /* Save the last event to debug log */
440 adapter->dbg.last_event_index =
441 (adapter->dbg.last_event_index + 1) % DBG_CMD_NUM;
442 adapter->dbg.last_event[adapter->dbg.last_event_index] =
445 /* Get BSS number and corresponding priv */
446 priv = mwifiex_get_priv_by_id(adapter, EVENT_GET_BSS_NUM(eventcause),
447 EVENT_GET_BSS_TYPE(eventcause));
449 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
450 /* Clear BSS_NO_BITS from event */
451 eventcause &= EVENT_ID_MASK;
452 adapter->event_cause = eventcause;
455 rx_info = MWIFIEX_SKB_RXCB(skb);
456 memset(rx_info, 0, sizeof(*rx_info));
457 rx_info->bss_num = priv->bss_num;
458 rx_info->bss_type = priv->bss_type;
461 if (eventcause != EVENT_PS_SLEEP && eventcause != EVENT_PS_AWAKE) {
462 do_gettimeofday(&tstamp);
463 dev_dbg(adapter->dev, "event: %lu.%lu: cause: %#x\n",
464 tstamp.tv_sec, tstamp.tv_usec, eventcause);
466 /* Handle PS_SLEEP/AWAKE events on STA */
467 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
469 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
472 if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP)
473 ret = mwifiex_process_uap_event(priv);
475 ret = mwifiex_process_sta_event(priv);
477 adapter->event_cause = 0;
478 adapter->event_skb = NULL;
479 adapter->if_ops.event_complete(adapter, skb);
485 * This function prepares a command and send it to the firmware.
487 * Preparation includes -
488 * - Sanity tests to make sure the card is still present or the FW
490 * - Getting a new command node from the command free queue
491 * - Initializing the command node for default parameters
492 * - Fill up the non-default parameters and buffer pointers
493 * - Add the command to pending queue
495 int mwifiex_send_cmd(struct mwifiex_private *priv, u16 cmd_no,
496 u16 cmd_action, u32 cmd_oid, void *data_buf, bool sync)
499 struct mwifiex_adapter *adapter = priv->adapter;
500 struct cmd_ctrl_node *cmd_node;
501 struct host_cmd_ds_command *cmd_ptr;
504 pr_err("PREP_CMD: adapter is NULL\n");
508 if (adapter->is_suspended) {
509 dev_err(adapter->dev, "PREP_CMD: device in suspended state\n");
513 if (adapter->hs_enabling && cmd_no != HostCmd_CMD_802_11_HS_CFG_ENH) {
514 dev_err(adapter->dev, "PREP_CMD: host entering sleep state\n");
518 if (adapter->surprise_removed) {
519 dev_err(adapter->dev, "PREP_CMD: card is removed\n");
523 if (adapter->is_cmd_timedout) {
524 dev_err(adapter->dev, "PREP_CMD: FW is in bad state\n");
528 if (adapter->hw_status == MWIFIEX_HW_STATUS_RESET) {
529 if (cmd_no != HostCmd_CMD_FUNC_INIT) {
530 dev_err(adapter->dev, "PREP_CMD: FW in reset state\n");
535 /* Get a new command node */
536 cmd_node = mwifiex_get_cmd_node(adapter);
539 dev_err(adapter->dev, "PREP_CMD: no free cmd node\n");
543 /* Initialize the command node */
544 mwifiex_init_cmd_node(priv, cmd_node, cmd_oid, data_buf, sync);
546 if (!cmd_node->cmd_skb) {
547 dev_err(adapter->dev, "PREP_CMD: no free cmd buf\n");
551 memset(skb_put(cmd_node->cmd_skb, sizeof(struct host_cmd_ds_command)),
552 0, sizeof(struct host_cmd_ds_command));
554 cmd_ptr = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
555 cmd_ptr->command = cpu_to_le16(cmd_no);
558 /* Prepare command */
561 case HostCmd_CMD_UAP_SYS_CONFIG:
562 case HostCmd_CMD_UAP_BSS_START:
563 case HostCmd_CMD_UAP_BSS_STOP:
564 case HostCmd_CMD_UAP_STA_DEAUTH:
565 ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action,
570 ret = mwifiex_sta_prepare_cmd(priv, cmd_no, cmd_action,
576 ret = mwifiex_cmd_host_cmd(priv, cmd_ptr, data_buf);
577 cmd_node->cmd_flag |= CMD_F_HOSTCMD;
580 /* Return error, since the command preparation failed */
582 dev_err(adapter->dev, "PREP_CMD: cmd %#x preparation failed\n",
584 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
589 if (cmd_no == HostCmd_CMD_802_11_SCAN ||
590 cmd_no == HostCmd_CMD_802_11_SCAN_EXT) {
591 mwifiex_queue_scan_cmd(priv, cmd_node);
593 mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, true);
594 queue_work(adapter->workqueue, &adapter->main_work);
595 if (cmd_node->wait_q_enabled)
596 ret = mwifiex_wait_queue_complete(adapter, cmd_node);
603 * This function returns a command to the command free queue.
605 * The function also calls the completion callback if required, before
606 * cleaning the command node and re-inserting it into the free queue.
609 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter *adapter,
610 struct cmd_ctrl_node *cmd_node)
617 if (cmd_node->wait_q_enabled)
618 mwifiex_complete_cmd(adapter, cmd_node);
620 mwifiex_clean_cmd_node(adapter, cmd_node);
622 /* Insert node into cmd_free_q */
623 spin_lock_irqsave(&adapter->cmd_free_q_lock, flags);
624 list_add_tail(&cmd_node->list, &adapter->cmd_free_q);
625 spin_unlock_irqrestore(&adapter->cmd_free_q_lock, flags);
628 /* This function reuses a command node. */
629 void mwifiex_recycle_cmd_node(struct mwifiex_adapter *adapter,
630 struct cmd_ctrl_node *cmd_node)
632 struct host_cmd_ds_command *host_cmd = (void *)cmd_node->cmd_skb->data;
634 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
636 atomic_dec(&adapter->cmd_pending);
637 dev_dbg(adapter->dev, "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n",
638 le16_to_cpu(host_cmd->command),
639 atomic_read(&adapter->cmd_pending));
643 * This function queues a command to the command pending queue.
645 * This in effect adds the command to the command list to be executed.
646 * Exit PS command is handled specially, by placing it always to the
647 * front of the command queue.
650 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter *adapter,
651 struct cmd_ctrl_node *cmd_node, u32 add_tail)
653 struct host_cmd_ds_command *host_cmd = NULL;
657 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
659 dev_err(adapter->dev, "QUEUE_CMD: host_cmd is NULL\n");
663 command = le16_to_cpu(host_cmd->command);
665 /* Exit_PS command needs to be queued in the header always. */
666 if (command == HostCmd_CMD_802_11_PS_MODE_ENH) {
667 struct host_cmd_ds_802_11_ps_mode_enh *pm =
668 &host_cmd->params.psmode_enh;
669 if ((le16_to_cpu(pm->action) == DIS_PS) ||
670 (le16_to_cpu(pm->action) == DIS_AUTO_PS)) {
671 if (adapter->ps_state != PS_STATE_AWAKE)
676 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
678 list_add_tail(&cmd_node->list, &adapter->cmd_pending_q);
680 list_add(&cmd_node->list, &adapter->cmd_pending_q);
681 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
683 atomic_inc(&adapter->cmd_pending);
684 dev_dbg(adapter->dev, "cmd: QUEUE_CMD: cmd=%#x, cmd_pending=%d\n",
685 command, atomic_read(&adapter->cmd_pending));
689 * This function executes the next command in command pending queue.
691 * This function will fail if a command is already in processing stage,
692 * otherwise it will dequeue the first command from the command pending
693 * queue and send to the firmware.
695 * If the device is currently in host sleep mode, any commands, except the
696 * host sleep configuration command will de-activate the host sleep. For PS
697 * mode, the function will put the firmware back to sleep if applicable.
699 int mwifiex_exec_next_cmd(struct mwifiex_adapter *adapter)
701 struct mwifiex_private *priv;
702 struct cmd_ctrl_node *cmd_node;
704 struct host_cmd_ds_command *host_cmd;
705 unsigned long cmd_flags;
706 unsigned long cmd_pending_q_flags;
708 /* Check if already in processing */
709 if (adapter->curr_cmd) {
710 dev_err(adapter->dev, "EXEC_NEXT_CMD: cmd in processing\n");
714 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
715 /* Check if any command is pending */
716 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
717 if (list_empty(&adapter->cmd_pending_q)) {
718 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
719 cmd_pending_q_flags);
720 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
723 cmd_node = list_first_entry(&adapter->cmd_pending_q,
724 struct cmd_ctrl_node, list);
725 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
726 cmd_pending_q_flags);
728 host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
729 priv = cmd_node->priv;
731 if (adapter->ps_state != PS_STATE_AWAKE) {
732 dev_err(adapter->dev, "%s: cannot send cmd in sleep state,"
733 " this should not happen\n", __func__);
734 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
738 spin_lock_irqsave(&adapter->cmd_pending_q_lock, cmd_pending_q_flags);
739 list_del(&cmd_node->list);
740 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock,
741 cmd_pending_q_flags);
743 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
744 ret = mwifiex_dnld_cmd_to_fw(priv, cmd_node);
745 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
746 /* Any command sent to the firmware when host is in sleep
747 * mode should de-configure host sleep. We should skip the
748 * host sleep configuration command itself though
750 if (priv && (host_cmd->command !=
751 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH))) {
752 if (adapter->hs_activated) {
753 adapter->is_hs_configured = false;
754 mwifiex_hs_activated_event(priv, false);
762 * This function handles the command response.
764 * After processing, the function cleans the command node and puts
765 * it back to the command free queue.
767 int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
769 struct host_cmd_ds_command *resp;
770 struct mwifiex_private *priv =
771 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
773 uint16_t orig_cmdresp_no;
775 uint16_t cmdresp_result;
776 struct timeval tstamp;
779 /* Now we got response from FW, cancel the command timer */
780 del_timer_sync(&adapter->cmd_timer);
782 if (!adapter->curr_cmd || !adapter->curr_cmd->resp_skb) {
783 resp = (struct host_cmd_ds_command *) adapter->upld_buf;
784 dev_err(adapter->dev, "CMD_RESP: NULL curr_cmd, %#x\n",
785 le16_to_cpu(resp->command));
789 adapter->is_cmd_timedout = 0;
791 resp = (struct host_cmd_ds_command *) adapter->curr_cmd->resp_skb->data;
792 if (adapter->curr_cmd->cmd_flag & CMD_F_CANCELED) {
793 dev_err(adapter->dev, "CMD_RESP: %#x been canceled\n",
794 le16_to_cpu(resp->command));
795 mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
796 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
797 adapter->curr_cmd = NULL;
798 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
802 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
803 /* Copy original response back to response buffer */
804 struct mwifiex_ds_misc_cmd *hostcmd;
805 uint16_t size = le16_to_cpu(resp->size);
806 dev_dbg(adapter->dev, "info: host cmd resp size = %d\n", size);
807 size = min_t(u16, size, MWIFIEX_SIZE_OF_CMD_BUFFER);
808 if (adapter->curr_cmd->data_buf) {
809 hostcmd = adapter->curr_cmd->data_buf;
811 memcpy(hostcmd->cmd, resp, size);
814 orig_cmdresp_no = le16_to_cpu(resp->command);
816 /* Get BSS number and corresponding priv */
817 priv = mwifiex_get_priv_by_id(adapter,
818 HostCmd_GET_BSS_NO(le16_to_cpu(resp->seq_num)),
819 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp->seq_num)));
821 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
822 /* Clear RET_BIT from HostCmd */
823 resp->command = cpu_to_le16(orig_cmdresp_no & HostCmd_CMD_ID_MASK);
825 cmdresp_no = le16_to_cpu(resp->command);
826 cmdresp_result = le16_to_cpu(resp->result);
828 /* Save the last command response to debug log */
829 adapter->dbg.last_cmd_resp_index =
830 (adapter->dbg.last_cmd_resp_index + 1) % DBG_CMD_NUM;
831 adapter->dbg.last_cmd_resp_id[adapter->dbg.last_cmd_resp_index] =
834 do_gettimeofday(&tstamp);
835 dev_dbg(adapter->dev, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
836 " len %d, seqno 0x%x\n",
837 tstamp.tv_sec, tstamp.tv_usec, orig_cmdresp_no, cmdresp_result,
838 le16_to_cpu(resp->size), le16_to_cpu(resp->seq_num));
840 if (!(orig_cmdresp_no & HostCmd_RET_BIT)) {
841 dev_err(adapter->dev, "CMD_RESP: invalid cmd resp\n");
842 if (adapter->curr_cmd->wait_q_enabled)
843 adapter->cmd_wait_q.status = -1;
845 mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
846 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
847 adapter->curr_cmd = NULL;
848 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
852 if (adapter->curr_cmd->cmd_flag & CMD_F_HOSTCMD) {
853 adapter->curr_cmd->cmd_flag &= ~CMD_F_HOSTCMD;
854 if ((cmdresp_result == HostCmd_RESULT_OK) &&
855 (cmdresp_no == HostCmd_CMD_802_11_HS_CFG_ENH))
856 ret = mwifiex_ret_802_11_hs_cfg(priv, resp);
858 /* handle response */
859 ret = mwifiex_process_sta_cmdresp(priv, cmdresp_no, resp);
862 /* Check init command response */
863 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) {
865 dev_err(adapter->dev, "%s: cmd %#x failed during "
866 "initialization\n", __func__, cmdresp_no);
867 mwifiex_init_fw_complete(adapter);
869 } else if (adapter->last_init_cmd == cmdresp_no)
870 adapter->hw_status = MWIFIEX_HW_STATUS_INIT_DONE;
873 if (adapter->curr_cmd) {
874 if (adapter->curr_cmd->wait_q_enabled)
875 adapter->cmd_wait_q.status = ret;
877 mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd);
879 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
880 adapter->curr_cmd = NULL;
881 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
888 * This function handles the timeout of command sending.
890 * It will re-send the same command again.
893 mwifiex_cmd_timeout_func(unsigned long function_context)
895 struct mwifiex_adapter *adapter =
896 (struct mwifiex_adapter *) function_context;
897 struct cmd_ctrl_node *cmd_node;
898 struct timeval tstamp;
900 adapter->is_cmd_timedout = 1;
901 if (!adapter->curr_cmd) {
902 dev_dbg(adapter->dev, "cmd: empty curr_cmd\n");
905 cmd_node = adapter->curr_cmd;
907 adapter->dbg.timeout_cmd_id =
908 adapter->dbg.last_cmd_id[adapter->dbg.last_cmd_index];
909 adapter->dbg.timeout_cmd_act =
910 adapter->dbg.last_cmd_act[adapter->dbg.last_cmd_index];
911 do_gettimeofday(&tstamp);
912 dev_err(adapter->dev,
913 "%s: Timeout cmd id (%lu.%lu) = %#x, act = %#x\n",
914 __func__, tstamp.tv_sec, tstamp.tv_usec,
915 adapter->dbg.timeout_cmd_id,
916 adapter->dbg.timeout_cmd_act);
918 dev_err(adapter->dev, "num_data_h2c_failure = %d\n",
919 adapter->dbg.num_tx_host_to_card_failure);
920 dev_err(adapter->dev, "num_cmd_h2c_failure = %d\n",
921 adapter->dbg.num_cmd_host_to_card_failure);
923 dev_err(adapter->dev, "is_cmd_timedout = %d\n",
924 adapter->is_cmd_timedout);
925 dev_err(adapter->dev, "num_tx_timeout = %d\n",
926 adapter->dbg.num_tx_timeout);
928 dev_err(adapter->dev, "last_cmd_index = %d\n",
929 adapter->dbg.last_cmd_index);
930 dev_err(adapter->dev, "last_cmd_id: %*ph\n",
931 (int)sizeof(adapter->dbg.last_cmd_id),
932 adapter->dbg.last_cmd_id);
933 dev_err(adapter->dev, "last_cmd_act: %*ph\n",
934 (int)sizeof(adapter->dbg.last_cmd_act),
935 adapter->dbg.last_cmd_act);
937 dev_err(adapter->dev, "last_cmd_resp_index = %d\n",
938 adapter->dbg.last_cmd_resp_index);
939 dev_err(adapter->dev, "last_cmd_resp_id: %*ph\n",
940 (int)sizeof(adapter->dbg.last_cmd_resp_id),
941 adapter->dbg.last_cmd_resp_id);
943 dev_err(adapter->dev, "last_event_index = %d\n",
944 adapter->dbg.last_event_index);
945 dev_err(adapter->dev, "last_event: %*ph\n",
946 (int)sizeof(adapter->dbg.last_event),
947 adapter->dbg.last_event);
949 dev_err(adapter->dev, "data_sent=%d cmd_sent=%d\n",
950 adapter->data_sent, adapter->cmd_sent);
952 dev_err(adapter->dev, "ps_mode=%d ps_state=%d\n",
953 adapter->ps_mode, adapter->ps_state);
955 if (cmd_node->wait_q_enabled) {
956 adapter->cmd_wait_q.status = -ETIMEDOUT;
957 wake_up_interruptible(&adapter->cmd_wait_q.wait);
958 mwifiex_cancel_pending_ioctl(adapter);
961 if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING)
962 mwifiex_init_fw_complete(adapter);
964 if (adapter->if_ops.card_reset)
965 adapter->if_ops.card_reset(adapter);
969 * This function cancels all the pending commands.
971 * The current command, all commands in command pending queue and all scan
972 * commands in scan pending queue are cancelled. All the completion callbacks
973 * are called with failure status to ensure cleanup.
976 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter *adapter)
978 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node;
979 unsigned long flags, cmd_flags;
980 struct mwifiex_private *priv;
983 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
984 /* Cancel current cmd */
985 if ((adapter->curr_cmd) && (adapter->curr_cmd->wait_q_enabled)) {
986 adapter->curr_cmd->wait_q_enabled = false;
987 adapter->cmd_wait_q.status = -1;
988 mwifiex_complete_cmd(adapter, adapter->curr_cmd);
990 /* Cancel all pending command */
991 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
992 list_for_each_entry_safe(cmd_node, tmp_node,
993 &adapter->cmd_pending_q, list) {
994 list_del(&cmd_node->list);
995 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
997 if (cmd_node->wait_q_enabled) {
998 adapter->cmd_wait_q.status = -1;
999 mwifiex_complete_cmd(adapter, cmd_node);
1000 cmd_node->wait_q_enabled = false;
1002 mwifiex_recycle_cmd_node(adapter, cmd_node);
1003 spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
1005 spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
1006 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
1008 /* Cancel all pending scan command */
1009 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
1010 list_for_each_entry_safe(cmd_node, tmp_node,
1011 &adapter->scan_pending_q, list) {
1012 list_del(&cmd_node->list);
1013 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
1015 cmd_node->wait_q_enabled = false;
1016 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
1017 spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
1019 spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
1021 if (adapter->scan_processing) {
1022 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
1023 adapter->scan_processing = false;
1024 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
1025 for (i = 0; i < adapter->priv_num; i++) {
1026 priv = adapter->priv[i];
1029 if (priv->scan_request) {
1030 dev_dbg(adapter->dev, "info: aborting scan\n");
1031 cfg80211_scan_done(priv->scan_request, 1);
1032 priv->scan_request = NULL;
1039 * This function cancels all pending commands that matches with
1040 * the given IOCTL request.
1042 * Both the current command buffer and the pending command queue are
1043 * searched for matching IOCTL request. The completion callback of
1044 * the matched command is called with failure status to ensure cleanup.
1045 * In case of scan commands, all pending commands in scan pending queue
1049 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
1051 struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
1052 unsigned long cmd_flags;
1053 unsigned long scan_pending_q_flags;
1054 struct mwifiex_private *priv;
1057 if ((adapter->curr_cmd) &&
1058 (adapter->curr_cmd->wait_q_enabled)) {
1059 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
1060 cmd_node = adapter->curr_cmd;
1061 cmd_node->wait_q_enabled = false;
1062 cmd_node->cmd_flag |= CMD_F_CANCELED;
1063 mwifiex_recycle_cmd_node(adapter, cmd_node);
1064 mwifiex_complete_cmd(adapter, adapter->curr_cmd);
1065 adapter->curr_cmd = NULL;
1066 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
1069 /* Cancel all pending scan command */
1070 spin_lock_irqsave(&adapter->scan_pending_q_lock,
1071 scan_pending_q_flags);
1072 list_for_each_entry_safe(cmd_node, tmp_node,
1073 &adapter->scan_pending_q, list) {
1074 list_del(&cmd_node->list);
1075 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
1076 scan_pending_q_flags);
1077 cmd_node->wait_q_enabled = false;
1078 mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
1079 spin_lock_irqsave(&adapter->scan_pending_q_lock,
1080 scan_pending_q_flags);
1082 spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
1083 scan_pending_q_flags);
1085 if (adapter->scan_processing) {
1086 spin_lock_irqsave(&adapter->mwifiex_cmd_lock, cmd_flags);
1087 adapter->scan_processing = false;
1088 spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, cmd_flags);
1089 for (i = 0; i < adapter->priv_num; i++) {
1090 priv = adapter->priv[i];
1093 if (priv->scan_request) {
1094 dev_dbg(adapter->dev, "info: aborting scan\n");
1095 cfg80211_scan_done(priv->scan_request, 1);
1096 priv->scan_request = NULL;
1100 adapter->cmd_wait_q.status = -1;
1104 * This function sends the sleep confirm command to firmware, if
1107 * The sleep confirm command cannot be issued if command response,
1108 * data response or event response is awaiting handling, or if we
1109 * are in the middle of sending a command, or expecting a command
1113 mwifiex_check_ps_cond(struct mwifiex_adapter *adapter)
1115 if (!adapter->cmd_sent &&
1116 !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
1117 mwifiex_dnld_sleep_confirm_cmd(adapter);
1119 dev_dbg(adapter->dev,
1120 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1121 (adapter->cmd_sent) ? "D" : "",
1122 (adapter->curr_cmd) ? "C" : "",
1123 (IS_CARD_RX_RCVD(adapter)) ? "R" : "");
1127 * This function sends a Host Sleep activated event to applications.
1129 * This event is generated by the driver, with a blank event body.
1132 mwifiex_hs_activated_event(struct mwifiex_private *priv, u8 activated)
1135 if (priv->adapter->is_hs_configured) {
1136 priv->adapter->hs_activated = true;
1137 mwifiex_update_rxreor_flags(priv->adapter,
1138 RXREOR_FORCE_NO_DROP);
1139 dev_dbg(priv->adapter->dev, "event: hs_activated\n");
1140 priv->adapter->hs_activate_wait_q_woken = true;
1141 wake_up_interruptible(
1142 &priv->adapter->hs_activate_wait_q);
1144 dev_dbg(priv->adapter->dev, "event: HS not configured\n");
1147 dev_dbg(priv->adapter->dev, "event: hs_deactivated\n");
1148 priv->adapter->hs_activated = false;
1153 * This function handles the command response of a Host Sleep configuration
1156 * Handling includes changing the header fields into CPU format
1157 * and setting the current host sleep activation status in driver.
1159 * In case host sleep status change, the function generates an event to
1160 * notify the applications.
1162 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private *priv,
1163 struct host_cmd_ds_command *resp)
1165 struct mwifiex_adapter *adapter = priv->adapter;
1166 struct host_cmd_ds_802_11_hs_cfg_enh *phs_cfg =
1167 &resp->params.opt_hs_cfg;
1168 uint32_t conditions = le32_to_cpu(phs_cfg->params.hs_config.conditions);
1170 if (phs_cfg->action == cpu_to_le16(HS_ACTIVATE) &&
1171 adapter->iface_type != MWIFIEX_USB) {
1172 mwifiex_hs_activated_event(priv, true);
1175 dev_dbg(adapter->dev, "cmd: CMD_RESP: HS_CFG cmd reply"
1176 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1177 resp->result, conditions,
1178 phs_cfg->params.hs_config.gpio,
1179 phs_cfg->params.hs_config.gap);
1181 if (conditions != HS_CFG_CANCEL) {
1182 adapter->is_hs_configured = true;
1183 if (adapter->iface_type == MWIFIEX_USB)
1184 mwifiex_hs_activated_event(priv, true);
1186 adapter->is_hs_configured = false;
1187 if (adapter->hs_activated)
1188 mwifiex_hs_activated_event(priv, false);
1195 * This function wakes up the adapter and generates a Host Sleep
1196 * cancel event on receiving the power up interrupt.
1199 mwifiex_process_hs_config(struct mwifiex_adapter *adapter)
1201 dev_dbg(adapter->dev, "info: %s: auto cancelling host sleep"
1202 " since there is interrupt from the firmware\n", __func__);
1204 adapter->if_ops.wakeup(adapter);
1205 adapter->hs_activated = false;
1206 adapter->is_hs_configured = false;
1207 adapter->is_suspended = false;
1208 mwifiex_hs_activated_event(mwifiex_get_priv(adapter,
1209 MWIFIEX_BSS_ROLE_ANY),
1212 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config);
1215 * This function handles the command response of a sleep confirm command.
1217 * The function sets the card state to SLEEP if the response indicates success.
1220 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter *adapter,
1221 u8 *pbuf, u32 upld_len)
1223 struct host_cmd_ds_command *cmd = (struct host_cmd_ds_command *) pbuf;
1224 struct mwifiex_private *priv =
1225 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1226 uint16_t result = le16_to_cpu(cmd->result);
1227 uint16_t command = le16_to_cpu(cmd->command);
1228 uint16_t seq_num = le16_to_cpu(cmd->seq_num);
1231 dev_err(adapter->dev, "%s: cmd size is 0\n", __func__);
1235 /* Get BSS number and corresponding priv */
1236 priv = mwifiex_get_priv_by_id(adapter, HostCmd_GET_BSS_NO(seq_num),
1237 HostCmd_GET_BSS_TYPE(seq_num));
1239 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
1241 /* Update sequence number */
1242 seq_num = HostCmd_GET_SEQ_NO(seq_num);
1243 /* Clear RET_BIT from HostCmd */
1244 command &= HostCmd_CMD_ID_MASK;
1246 if (command != HostCmd_CMD_802_11_PS_MODE_ENH) {
1247 dev_err(adapter->dev,
1248 "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
1249 __func__, command, result);
1254 dev_err(adapter->dev, "%s: sleep confirm cmd failed\n",
1256 adapter->pm_wakeup_card_req = false;
1257 adapter->ps_state = PS_STATE_AWAKE;
1260 adapter->pm_wakeup_card_req = true;
1261 if (adapter->is_hs_configured)
1262 mwifiex_hs_activated_event(mwifiex_get_priv
1263 (adapter, MWIFIEX_BSS_ROLE_ANY),
1265 adapter->ps_state = PS_STATE_SLEEP;
1266 cmd->command = cpu_to_le16(command);
1267 cmd->seq_num = cpu_to_le16(seq_num);
1269 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp);
1272 * This function prepares an enhanced power mode command.
1274 * This function can be used to disable power save or to configure
1275 * power save with auto PS or STA PS or auto deep sleep.
1277 * Preparation includes -
1278 * - Setting command ID, action and proper size
1279 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1280 * auto deep sleep TLV (as required)
1281 * - Ensuring correct endian-ness
1283 int mwifiex_cmd_enh_power_mode(struct mwifiex_private *priv,
1284 struct host_cmd_ds_command *cmd,
1285 u16 cmd_action, uint16_t ps_bitmap,
1286 struct mwifiex_ds_auto_ds *auto_ds)
1288 struct host_cmd_ds_802_11_ps_mode_enh *psmode_enh =
1289 &cmd->params.psmode_enh;
1293 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH);
1294 if (cmd_action == DIS_AUTO_PS) {
1295 psmode_enh->action = cpu_to_le16(DIS_AUTO_PS);
1296 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1297 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1298 sizeof(psmode_enh->params.ps_bitmap));
1299 } else if (cmd_action == GET_PS) {
1300 psmode_enh->action = cpu_to_le16(GET_PS);
1301 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1302 cmd->size = cpu_to_le16(S_DS_GEN + sizeof(psmode_enh->action) +
1303 sizeof(psmode_enh->params.ps_bitmap));
1304 } else if (cmd_action == EN_AUTO_PS) {
1305 psmode_enh->action = cpu_to_le16(EN_AUTO_PS);
1306 psmode_enh->params.ps_bitmap = cpu_to_le16(ps_bitmap);
1307 cmd_size = S_DS_GEN + sizeof(psmode_enh->action) +
1308 sizeof(psmode_enh->params.ps_bitmap);
1309 tlv = (u8 *) cmd + cmd_size;
1310 if (ps_bitmap & BITMAP_STA_PS) {
1311 struct mwifiex_adapter *adapter = priv->adapter;
1312 struct mwifiex_ie_types_ps_param *ps_tlv =
1313 (struct mwifiex_ie_types_ps_param *) tlv;
1314 struct mwifiex_ps_param *ps_mode = &ps_tlv->param;
1315 ps_tlv->header.type = cpu_to_le16(TLV_TYPE_PS_PARAM);
1316 ps_tlv->header.len = cpu_to_le16(sizeof(*ps_tlv) -
1317 sizeof(struct mwifiex_ie_types_header));
1318 cmd_size += sizeof(*ps_tlv);
1319 tlv += sizeof(*ps_tlv);
1320 dev_dbg(adapter->dev, "cmd: PS Command: Enter PS\n");
1321 ps_mode->null_pkt_interval =
1322 cpu_to_le16(adapter->null_pkt_interval);
1323 ps_mode->multiple_dtims =
1324 cpu_to_le16(adapter->multiple_dtim);
1325 ps_mode->bcn_miss_timeout =
1326 cpu_to_le16(adapter->bcn_miss_time_out);
1327 ps_mode->local_listen_interval =
1328 cpu_to_le16(adapter->local_listen_interval);
1329 ps_mode->adhoc_wake_period =
1330 cpu_to_le16(adapter->adhoc_awake_period);
1331 ps_mode->delay_to_ps =
1332 cpu_to_le16(adapter->delay_to_ps);
1333 ps_mode->mode = cpu_to_le16(adapter->enhanced_ps_mode);
1336 if (ps_bitmap & BITMAP_AUTO_DS) {
1337 struct mwifiex_ie_types_auto_ds_param *auto_ds_tlv =
1338 (struct mwifiex_ie_types_auto_ds_param *) tlv;
1341 auto_ds_tlv->header.type =
1342 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM);
1343 auto_ds_tlv->header.len =
1344 cpu_to_le16(sizeof(*auto_ds_tlv) -
1345 sizeof(struct mwifiex_ie_types_header));
1346 cmd_size += sizeof(*auto_ds_tlv);
1347 tlv += sizeof(*auto_ds_tlv);
1349 idletime = auto_ds->idle_time;
1350 dev_dbg(priv->adapter->dev,
1351 "cmd: PS Command: Enter Auto Deep Sleep\n");
1352 auto_ds_tlv->deep_sleep_timeout = cpu_to_le16(idletime);
1354 cmd->size = cpu_to_le16(cmd_size);
1360 * This function handles the command response of an enhanced power mode
1363 * Handling includes changing the header fields into CPU format
1364 * and setting the current enhanced power mode in driver.
1366 int mwifiex_ret_enh_power_mode(struct mwifiex_private *priv,
1367 struct host_cmd_ds_command *resp,
1368 struct mwifiex_ds_pm_cfg *pm_cfg)
1370 struct mwifiex_adapter *adapter = priv->adapter;
1371 struct host_cmd_ds_802_11_ps_mode_enh *ps_mode =
1372 &resp->params.psmode_enh;
1373 uint16_t action = le16_to_cpu(ps_mode->action);
1374 uint16_t ps_bitmap = le16_to_cpu(ps_mode->params.ps_bitmap);
1375 uint16_t auto_ps_bitmap =
1376 le16_to_cpu(ps_mode->params.ps_bitmap);
1378 dev_dbg(adapter->dev,
1379 "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1380 __func__, resp->result, action);
1381 if (action == EN_AUTO_PS) {
1382 if (auto_ps_bitmap & BITMAP_AUTO_DS) {
1383 dev_dbg(adapter->dev, "cmd: Enabled auto deep sleep\n");
1384 priv->adapter->is_deep_sleep = true;
1386 if (auto_ps_bitmap & BITMAP_STA_PS) {
1387 dev_dbg(adapter->dev, "cmd: Enabled STA power save\n");
1388 if (adapter->sleep_period.period)
1389 dev_dbg(adapter->dev,
1390 "cmd: set to uapsd/pps mode\n");
1392 } else if (action == DIS_AUTO_PS) {
1393 if (ps_bitmap & BITMAP_AUTO_DS) {
1394 priv->adapter->is_deep_sleep = false;
1395 dev_dbg(adapter->dev, "cmd: Disabled auto deep sleep\n");
1397 if (ps_bitmap & BITMAP_STA_PS) {
1398 dev_dbg(adapter->dev, "cmd: Disabled STA power save\n");
1399 if (adapter->sleep_period.period) {
1400 adapter->delay_null_pkt = false;
1401 adapter->tx_lock_flag = false;
1402 adapter->pps_uapsd_mode = false;
1405 } else if (action == GET_PS) {
1406 if (ps_bitmap & BITMAP_STA_PS)
1407 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
1409 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
1411 dev_dbg(adapter->dev, "cmd: ps_bitmap=%#x\n", ps_bitmap);
1414 /* This section is for get power save mode */
1415 if (ps_bitmap & BITMAP_STA_PS)
1416 pm_cfg->param.ps_mode = 1;
1418 pm_cfg->param.ps_mode = 0;
1425 * This function prepares command to get hardware specifications.
1427 * Preparation includes -
1428 * - Setting command ID, action and proper size
1429 * - Setting permanent address parameter
1430 * - Ensuring correct endian-ness
1432 int mwifiex_cmd_get_hw_spec(struct mwifiex_private *priv,
1433 struct host_cmd_ds_command *cmd)
1435 struct host_cmd_ds_get_hw_spec *hw_spec = &cmd->params.hw_spec;
1437 cmd->command = cpu_to_le16(HostCmd_CMD_GET_HW_SPEC);
1439 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec) + S_DS_GEN);
1440 memcpy(hw_spec->permanent_addr, priv->curr_addr, ETH_ALEN);
1446 * This function handles the command response of get hardware
1449 * Handling includes changing the header fields into CPU format
1450 * and saving/updating the following parameters in driver -
1451 * - Firmware capability information
1452 * - Firmware band settings
1453 * - Ad-hoc start band and channel
1454 * - Ad-hoc 11n activation status
1455 * - Firmware release number
1456 * - Number of antennas
1457 * - Hardware address
1458 * - Hardware interface version
1459 * - Firmware version
1461 * - 11n capabilities
1462 * - MCS support fields
1465 int mwifiex_ret_get_hw_spec(struct mwifiex_private *priv,
1466 struct host_cmd_ds_command *resp)
1468 struct host_cmd_ds_get_hw_spec *hw_spec = &resp->params.hw_spec;
1469 struct mwifiex_adapter *adapter = priv->adapter;
1470 struct mwifiex_ie_types_header *tlv;
1471 struct hw_spec_fw_api_rev *api_rev;
1472 u16 resp_size, api_id;
1473 int i, left_len, parsed_len = 0;
1475 adapter->fw_cap_info = le32_to_cpu(hw_spec->fw_cap_info);
1477 if (IS_SUPPORT_MULTI_BANDS(adapter))
1478 adapter->fw_bands = (u8) GET_FW_DEFAULT_BANDS(adapter);
1480 adapter->fw_bands = BAND_B;
1482 adapter->config_bands = adapter->fw_bands;
1484 if (adapter->fw_bands & BAND_A) {
1485 if (adapter->fw_bands & BAND_GN) {
1486 adapter->config_bands |= BAND_AN;
1487 adapter->fw_bands |= BAND_AN;
1489 if (adapter->fw_bands & BAND_AN) {
1490 adapter->adhoc_start_band = BAND_A | BAND_AN;
1491 adapter->adhoc_11n_enabled = true;
1493 adapter->adhoc_start_band = BAND_A;
1495 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL_A;
1496 } else if (adapter->fw_bands & BAND_GN) {
1497 adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN;
1498 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1499 adapter->adhoc_11n_enabled = true;
1500 } else if (adapter->fw_bands & BAND_G) {
1501 adapter->adhoc_start_band = BAND_G | BAND_B;
1502 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1503 } else if (adapter->fw_bands & BAND_B) {
1504 adapter->adhoc_start_band = BAND_B;
1505 priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
1508 adapter->fw_release_number = le32_to_cpu(hw_spec->fw_release_number);
1509 adapter->fw_api_ver = (adapter->fw_release_number >> 16) & 0xff;
1510 adapter->number_of_antenna = le16_to_cpu(hw_spec->number_of_antenna);
1512 if (le32_to_cpu(hw_spec->dot_11ac_dev_cap)) {
1513 adapter->is_hw_11ac_capable = true;
1516 adapter->hw_dot_11ac_dev_cap =
1517 le32_to_cpu(hw_spec->dot_11ac_dev_cap);
1518 adapter->usr_dot_11ac_dev_cap_bg = adapter->hw_dot_11ac_dev_cap
1519 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK;
1520 adapter->usr_dot_11ac_dev_cap_a = adapter->hw_dot_11ac_dev_cap
1521 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK;
1524 adapter->hw_dot_11ac_mcs_support =
1525 le32_to_cpu(hw_spec->dot_11ac_mcs_support);
1526 adapter->usr_dot_11ac_mcs_support =
1527 adapter->hw_dot_11ac_mcs_support;
1529 adapter->is_hw_11ac_capable = false;
1532 resp_size = le16_to_cpu(resp->size) - S_DS_GEN;
1533 if (resp_size > sizeof(struct host_cmd_ds_get_hw_spec)) {
1534 /* we have variable HW SPEC information */
1535 left_len = resp_size - sizeof(struct host_cmd_ds_get_hw_spec);
1536 while (left_len > sizeof(struct mwifiex_ie_types_header)) {
1537 tlv = (void *)&hw_spec->tlvs + parsed_len;
1538 switch (le16_to_cpu(tlv->type)) {
1539 case TLV_TYPE_FW_API_REV:
1540 api_rev = (struct hw_spec_fw_api_rev *)tlv;
1541 api_id = le16_to_cpu(api_rev->api_id);
1543 case KEY_API_VER_ID:
1544 adapter->fw_key_api_major_ver =
1546 adapter->fw_key_api_minor_ver =
1548 dev_dbg(adapter->dev,
1549 "fw_key_api v%d.%d\n",
1550 adapter->fw_key_api_major_ver,
1551 adapter->fw_key_api_minor_ver);
1554 dev_warn(adapter->dev,
1555 "Unknown FW api_id: %d\n",
1561 dev_warn(adapter->dev,
1562 "Unknown GET_HW_SPEC TLV type: %#x\n",
1563 le16_to_cpu(tlv->type));
1566 parsed_len += le16_to_cpu(tlv->len) +
1567 sizeof(struct mwifiex_ie_types_header);
1568 left_len -= parsed_len;
1572 dev_dbg(adapter->dev, "info: GET_HW_SPEC: fw_release_number- %#x\n",
1573 adapter->fw_release_number);
1574 dev_dbg(adapter->dev, "info: GET_HW_SPEC: permanent addr: %pM\n",
1575 hw_spec->permanent_addr);
1576 dev_dbg(adapter->dev,
1577 "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
1578 le16_to_cpu(hw_spec->hw_if_version),
1579 le16_to_cpu(hw_spec->version));
1581 if (priv->curr_addr[0] == 0xff)
1582 memmove(priv->curr_addr, hw_spec->permanent_addr, ETH_ALEN);
1584 adapter->region_code = le16_to_cpu(hw_spec->region_code);
1586 for (i = 0; i < MWIFIEX_MAX_REGION_CODE; i++)
1587 /* Use the region code to search for the index */
1588 if (adapter->region_code == region_code_index[i])
1591 /* If it's unidentified region code, use the default (USA) */
1592 if (i >= MWIFIEX_MAX_REGION_CODE) {
1593 adapter->region_code = 0x10;
1594 dev_dbg(adapter->dev,
1595 "cmd: unknown region code, use default (USA)\n");
1598 adapter->hw_dot_11n_dev_cap = le32_to_cpu(hw_spec->dot_11n_dev_cap);
1599 adapter->hw_dev_mcs_support = hw_spec->dev_mcs_support;
1600 adapter->user_dev_mcs_support = adapter->hw_dev_mcs_support;
1602 if (adapter->if_ops.update_mp_end_port)
1603 adapter->if_ops.update_mp_end_port(adapter,
1604 le16_to_cpu(hw_spec->mp_end_port));