2 * Marvell Wireless LAN device driver: commands and events
4 * Copyright (C) 2011-2014, 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 rx_info
->bss_num
= priv
->bss_num
;
457 rx_info
->bss_type
= priv
->bss_type
;
460 if (eventcause
!= EVENT_PS_SLEEP
&& eventcause
!= EVENT_PS_AWAKE
) {
461 do_gettimeofday(&tstamp
);
462 dev_dbg(adapter
->dev
, "event: %lu.%lu: cause: %#x\n",
463 tstamp
.tv_sec
, tstamp
.tv_usec
, eventcause
);
465 /* Handle PS_SLEEP/AWAKE events on STA */
466 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
);
468 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
471 if (priv
->bss_role
== MWIFIEX_BSS_ROLE_UAP
)
472 ret
= mwifiex_process_uap_event(priv
);
474 ret
= mwifiex_process_sta_event(priv
);
476 adapter
->event_cause
= 0;
477 adapter
->event_skb
= NULL
;
478 adapter
->if_ops
.event_complete(adapter
, skb
);
484 * This function prepares a command and send it to the firmware.
486 * Preparation includes -
487 * - Sanity tests to make sure the card is still present or the FW
489 * - Getting a new command node from the command free queue
490 * - Initializing the command node for default parameters
491 * - Fill up the non-default parameters and buffer pointers
492 * - Add the command to pending queue
494 int mwifiex_send_cmd(struct mwifiex_private
*priv
, u16 cmd_no
,
495 u16 cmd_action
, u32 cmd_oid
, void *data_buf
, bool sync
)
498 struct mwifiex_adapter
*adapter
= priv
->adapter
;
499 struct cmd_ctrl_node
*cmd_node
;
500 struct host_cmd_ds_command
*cmd_ptr
;
503 pr_err("PREP_CMD: adapter is NULL\n");
507 if (adapter
->is_suspended
) {
508 dev_err(adapter
->dev
, "PREP_CMD: device in suspended state\n");
512 if (adapter
->hs_enabling
&& cmd_no
!= HostCmd_CMD_802_11_HS_CFG_ENH
) {
513 dev_err(adapter
->dev
, "PREP_CMD: host entering sleep state\n");
517 if (adapter
->surprise_removed
) {
518 dev_err(adapter
->dev
, "PREP_CMD: card is removed\n");
522 if (adapter
->is_cmd_timedout
) {
523 dev_err(adapter
->dev
, "PREP_CMD: FW is in bad state\n");
527 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_RESET
) {
528 if (cmd_no
!= HostCmd_CMD_FUNC_INIT
) {
529 dev_err(adapter
->dev
, "PREP_CMD: FW in reset state\n");
534 /* Get a new command node */
535 cmd_node
= mwifiex_get_cmd_node(adapter
);
538 dev_err(adapter
->dev
, "PREP_CMD: no free cmd node\n");
542 /* Initialize the command node */
543 mwifiex_init_cmd_node(priv
, cmd_node
, cmd_oid
, data_buf
, sync
);
545 if (!cmd_node
->cmd_skb
) {
546 dev_err(adapter
->dev
, "PREP_CMD: no free cmd buf\n");
550 memset(skb_put(cmd_node
->cmd_skb
, sizeof(struct host_cmd_ds_command
)),
551 0, sizeof(struct host_cmd_ds_command
));
553 cmd_ptr
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
554 cmd_ptr
->command
= cpu_to_le16(cmd_no
);
557 /* Prepare command */
560 case HostCmd_CMD_UAP_SYS_CONFIG
:
561 case HostCmd_CMD_UAP_BSS_START
:
562 case HostCmd_CMD_UAP_BSS_STOP
:
563 case HostCmd_CMD_UAP_STA_DEAUTH
:
564 ret
= mwifiex_uap_prepare_cmd(priv
, cmd_no
, cmd_action
,
569 ret
= mwifiex_sta_prepare_cmd(priv
, cmd_no
, cmd_action
,
575 ret
= mwifiex_cmd_host_cmd(priv
, cmd_ptr
, data_buf
);
576 cmd_node
->cmd_flag
|= CMD_F_HOSTCMD
;
579 /* Return error, since the command preparation failed */
581 dev_err(adapter
->dev
, "PREP_CMD: cmd %#x preparation failed\n",
583 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
588 if (cmd_no
== HostCmd_CMD_802_11_SCAN
||
589 cmd_no
== HostCmd_CMD_802_11_SCAN_EXT
) {
590 mwifiex_queue_scan_cmd(priv
, cmd_node
);
592 mwifiex_insert_cmd_to_pending_q(adapter
, cmd_node
, true);
593 queue_work(adapter
->workqueue
, &adapter
->main_work
);
594 if (cmd_node
->wait_q_enabled
)
595 ret
= mwifiex_wait_queue_complete(adapter
, cmd_node
);
602 * This function returns a command to the command free queue.
604 * The function also calls the completion callback if required, before
605 * cleaning the command node and re-inserting it into the free queue.
608 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter
*adapter
,
609 struct cmd_ctrl_node
*cmd_node
)
616 if (cmd_node
->wait_q_enabled
)
617 mwifiex_complete_cmd(adapter
, cmd_node
);
619 mwifiex_clean_cmd_node(adapter
, cmd_node
);
621 /* Insert node into cmd_free_q */
622 spin_lock_irqsave(&adapter
->cmd_free_q_lock
, flags
);
623 list_add_tail(&cmd_node
->list
, &adapter
->cmd_free_q
);
624 spin_unlock_irqrestore(&adapter
->cmd_free_q_lock
, flags
);
627 /* This function reuses a command node. */
628 void mwifiex_recycle_cmd_node(struct mwifiex_adapter
*adapter
,
629 struct cmd_ctrl_node
*cmd_node
)
631 struct host_cmd_ds_command
*host_cmd
= (void *)cmd_node
->cmd_skb
->data
;
633 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
635 atomic_dec(&adapter
->cmd_pending
);
636 dev_dbg(adapter
->dev
, "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n",
637 le16_to_cpu(host_cmd
->command
),
638 atomic_read(&adapter
->cmd_pending
));
642 * This function queues a command to the command pending queue.
644 * This in effect adds the command to the command list to be executed.
645 * Exit PS command is handled specially, by placing it always to the
646 * front of the command queue.
649 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter
*adapter
,
650 struct cmd_ctrl_node
*cmd_node
, u32 add_tail
)
652 struct host_cmd_ds_command
*host_cmd
= NULL
;
656 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
658 dev_err(adapter
->dev
, "QUEUE_CMD: host_cmd is NULL\n");
662 command
= le16_to_cpu(host_cmd
->command
);
664 /* Exit_PS command needs to be queued in the header always. */
665 if (command
== HostCmd_CMD_802_11_PS_MODE_ENH
) {
666 struct host_cmd_ds_802_11_ps_mode_enh
*pm
=
667 &host_cmd
->params
.psmode_enh
;
668 if ((le16_to_cpu(pm
->action
) == DIS_PS
) ||
669 (le16_to_cpu(pm
->action
) == DIS_AUTO_PS
)) {
670 if (adapter
->ps_state
!= PS_STATE_AWAKE
)
675 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
677 list_add_tail(&cmd_node
->list
, &adapter
->cmd_pending_q
);
679 list_add(&cmd_node
->list
, &adapter
->cmd_pending_q
);
680 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
682 atomic_inc(&adapter
->cmd_pending
);
683 dev_dbg(adapter
->dev
, "cmd: QUEUE_CMD: cmd=%#x, cmd_pending=%d\n",
684 command
, atomic_read(&adapter
->cmd_pending
));
688 * This function executes the next command in command pending queue.
690 * This function will fail if a command is already in processing stage,
691 * otherwise it will dequeue the first command from the command pending
692 * queue and send to the firmware.
694 * If the device is currently in host sleep mode, any commands, except the
695 * host sleep configuration command will de-activate the host sleep. For PS
696 * mode, the function will put the firmware back to sleep if applicable.
698 int mwifiex_exec_next_cmd(struct mwifiex_adapter
*adapter
)
700 struct mwifiex_private
*priv
;
701 struct cmd_ctrl_node
*cmd_node
;
703 struct host_cmd_ds_command
*host_cmd
;
704 unsigned long cmd_flags
;
705 unsigned long cmd_pending_q_flags
;
707 /* Check if already in processing */
708 if (adapter
->curr_cmd
) {
709 dev_err(adapter
->dev
, "EXEC_NEXT_CMD: cmd in processing\n");
713 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
714 /* Check if any command is pending */
715 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
716 if (list_empty(&adapter
->cmd_pending_q
)) {
717 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
718 cmd_pending_q_flags
);
719 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
722 cmd_node
= list_first_entry(&adapter
->cmd_pending_q
,
723 struct cmd_ctrl_node
, list
);
724 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
725 cmd_pending_q_flags
);
727 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
728 priv
= cmd_node
->priv
;
730 if (adapter
->ps_state
!= PS_STATE_AWAKE
) {
731 dev_err(adapter
->dev
, "%s: cannot send cmd in sleep state,"
732 " this should not happen\n", __func__
);
733 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
737 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
738 list_del(&cmd_node
->list
);
739 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
740 cmd_pending_q_flags
);
742 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
743 ret
= mwifiex_dnld_cmd_to_fw(priv
, cmd_node
);
744 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
745 /* Any command sent to the firmware when host is in sleep
746 * mode should de-configure host sleep. We should skip the
747 * host sleep configuration command itself though
749 if (priv
&& (host_cmd
->command
!=
750 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH
))) {
751 if (adapter
->hs_activated
) {
752 adapter
->is_hs_configured
= false;
753 mwifiex_hs_activated_event(priv
, false);
761 * This function handles the command response.
763 * After processing, the function cleans the command node and puts
764 * it back to the command free queue.
766 int mwifiex_process_cmdresp(struct mwifiex_adapter
*adapter
)
768 struct host_cmd_ds_command
*resp
;
769 struct mwifiex_private
*priv
=
770 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
772 uint16_t orig_cmdresp_no
;
774 uint16_t cmdresp_result
;
775 struct timeval tstamp
;
778 /* Now we got response from FW, cancel the command timer */
779 del_timer_sync(&adapter
->cmd_timer
);
781 if (!adapter
->curr_cmd
|| !adapter
->curr_cmd
->resp_skb
) {
782 resp
= (struct host_cmd_ds_command
*) adapter
->upld_buf
;
783 dev_err(adapter
->dev
, "CMD_RESP: NULL curr_cmd, %#x\n",
784 le16_to_cpu(resp
->command
));
788 adapter
->is_cmd_timedout
= 0;
790 resp
= (struct host_cmd_ds_command
*) adapter
->curr_cmd
->resp_skb
->data
;
791 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_CANCELED
) {
792 dev_err(adapter
->dev
, "CMD_RESP: %#x been canceled\n",
793 le16_to_cpu(resp
->command
));
794 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
795 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
796 adapter
->curr_cmd
= NULL
;
797 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
801 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
802 /* Copy original response back to response buffer */
803 struct mwifiex_ds_misc_cmd
*hostcmd
;
804 uint16_t size
= le16_to_cpu(resp
->size
);
805 dev_dbg(adapter
->dev
, "info: host cmd resp size = %d\n", size
);
806 size
= min_t(u16
, size
, MWIFIEX_SIZE_OF_CMD_BUFFER
);
807 if (adapter
->curr_cmd
->data_buf
) {
808 hostcmd
= adapter
->curr_cmd
->data_buf
;
810 memcpy(hostcmd
->cmd
, resp
, size
);
813 orig_cmdresp_no
= le16_to_cpu(resp
->command
);
815 /* Get BSS number and corresponding priv */
816 priv
= mwifiex_get_priv_by_id(adapter
,
817 HostCmd_GET_BSS_NO(le16_to_cpu(resp
->seq_num
)),
818 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp
->seq_num
)));
820 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
821 /* Clear RET_BIT from HostCmd */
822 resp
->command
= cpu_to_le16(orig_cmdresp_no
& HostCmd_CMD_ID_MASK
);
824 cmdresp_no
= le16_to_cpu(resp
->command
);
825 cmdresp_result
= le16_to_cpu(resp
->result
);
827 /* Save the last command response to debug log */
828 adapter
->dbg
.last_cmd_resp_index
=
829 (adapter
->dbg
.last_cmd_resp_index
+ 1) % DBG_CMD_NUM
;
830 adapter
->dbg
.last_cmd_resp_id
[adapter
->dbg
.last_cmd_resp_index
] =
833 do_gettimeofday(&tstamp
);
834 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
835 " len %d, seqno 0x%x\n",
836 tstamp
.tv_sec
, tstamp
.tv_usec
, orig_cmdresp_no
, cmdresp_result
,
837 le16_to_cpu(resp
->size
), le16_to_cpu(resp
->seq_num
));
839 if (!(orig_cmdresp_no
& HostCmd_RET_BIT
)) {
840 dev_err(adapter
->dev
, "CMD_RESP: invalid cmd resp\n");
841 if (adapter
->curr_cmd
->wait_q_enabled
)
842 adapter
->cmd_wait_q
.status
= -1;
844 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
845 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
846 adapter
->curr_cmd
= NULL
;
847 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
851 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
852 adapter
->curr_cmd
->cmd_flag
&= ~CMD_F_HOSTCMD
;
853 if ((cmdresp_result
== HostCmd_RESULT_OK
) &&
854 (cmdresp_no
== HostCmd_CMD_802_11_HS_CFG_ENH
))
855 ret
= mwifiex_ret_802_11_hs_cfg(priv
, resp
);
857 /* handle response */
858 ret
= mwifiex_process_sta_cmdresp(priv
, cmdresp_no
, resp
);
861 /* Check init command response */
862 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
) {
864 dev_err(adapter
->dev
, "%s: cmd %#x failed during "
865 "initialization\n", __func__
, cmdresp_no
);
866 mwifiex_init_fw_complete(adapter
);
868 } else if (adapter
->last_init_cmd
== cmdresp_no
)
869 adapter
->hw_status
= MWIFIEX_HW_STATUS_INIT_DONE
;
872 if (adapter
->curr_cmd
) {
873 if (adapter
->curr_cmd
->wait_q_enabled
)
874 adapter
->cmd_wait_q
.status
= ret
;
876 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
878 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
879 adapter
->curr_cmd
= NULL
;
880 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
887 * This function handles the timeout of command sending.
889 * It will re-send the same command again.
892 mwifiex_cmd_timeout_func(unsigned long function_context
)
894 struct mwifiex_adapter
*adapter
=
895 (struct mwifiex_adapter
*) function_context
;
896 struct cmd_ctrl_node
*cmd_node
;
897 struct timeval tstamp
;
899 adapter
->is_cmd_timedout
= 1;
900 if (!adapter
->curr_cmd
) {
901 dev_dbg(adapter
->dev
, "cmd: empty curr_cmd\n");
904 cmd_node
= adapter
->curr_cmd
;
906 adapter
->dbg
.timeout_cmd_id
=
907 adapter
->dbg
.last_cmd_id
[adapter
->dbg
.last_cmd_index
];
908 adapter
->dbg
.timeout_cmd_act
=
909 adapter
->dbg
.last_cmd_act
[adapter
->dbg
.last_cmd_index
];
910 do_gettimeofday(&tstamp
);
911 dev_err(adapter
->dev
,
912 "%s: Timeout cmd id (%lu.%lu) = %#x, act = %#x\n",
913 __func__
, tstamp
.tv_sec
, tstamp
.tv_usec
,
914 adapter
->dbg
.timeout_cmd_id
,
915 adapter
->dbg
.timeout_cmd_act
);
917 dev_err(adapter
->dev
, "num_data_h2c_failure = %d\n",
918 adapter
->dbg
.num_tx_host_to_card_failure
);
919 dev_err(adapter
->dev
, "num_cmd_h2c_failure = %d\n",
920 adapter
->dbg
.num_cmd_host_to_card_failure
);
922 dev_err(adapter
->dev
, "is_cmd_timedout = %d\n",
923 adapter
->is_cmd_timedout
);
924 dev_err(adapter
->dev
, "num_tx_timeout = %d\n",
925 adapter
->dbg
.num_tx_timeout
);
927 dev_err(adapter
->dev
, "last_cmd_index = %d\n",
928 adapter
->dbg
.last_cmd_index
);
929 dev_err(adapter
->dev
, "last_cmd_id: %*ph\n",
930 (int)sizeof(adapter
->dbg
.last_cmd_id
),
931 adapter
->dbg
.last_cmd_id
);
932 dev_err(adapter
->dev
, "last_cmd_act: %*ph\n",
933 (int)sizeof(adapter
->dbg
.last_cmd_act
),
934 adapter
->dbg
.last_cmd_act
);
936 dev_err(adapter
->dev
, "last_cmd_resp_index = %d\n",
937 adapter
->dbg
.last_cmd_resp_index
);
938 dev_err(adapter
->dev
, "last_cmd_resp_id: %*ph\n",
939 (int)sizeof(adapter
->dbg
.last_cmd_resp_id
),
940 adapter
->dbg
.last_cmd_resp_id
);
942 dev_err(adapter
->dev
, "last_event_index = %d\n",
943 adapter
->dbg
.last_event_index
);
944 dev_err(adapter
->dev
, "last_event: %*ph\n",
945 (int)sizeof(adapter
->dbg
.last_event
),
946 adapter
->dbg
.last_event
);
948 dev_err(adapter
->dev
, "data_sent=%d cmd_sent=%d\n",
949 adapter
->data_sent
, adapter
->cmd_sent
);
951 dev_err(adapter
->dev
, "ps_mode=%d ps_state=%d\n",
952 adapter
->ps_mode
, adapter
->ps_state
);
954 if (cmd_node
->wait_q_enabled
) {
955 adapter
->cmd_wait_q
.status
= -ETIMEDOUT
;
956 wake_up_interruptible(&adapter
->cmd_wait_q
.wait
);
957 mwifiex_cancel_pending_ioctl(adapter
);
960 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
)
961 mwifiex_init_fw_complete(adapter
);
963 if (adapter
->if_ops
.fw_dump
)
964 adapter
->if_ops
.fw_dump(adapter
);
966 if (adapter
->if_ops
.card_reset
)
967 adapter
->if_ops
.card_reset(adapter
);
971 * This function cancels all the pending commands.
973 * The current command, all commands in command pending queue and all scan
974 * commands in scan pending queue are cancelled. All the completion callbacks
975 * are called with failure status to ensure cleanup.
978 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter
*adapter
)
980 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
;
981 unsigned long flags
, cmd_flags
;
982 struct mwifiex_private
*priv
;
985 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
986 /* Cancel current cmd */
987 if ((adapter
->curr_cmd
) && (adapter
->curr_cmd
->wait_q_enabled
)) {
988 adapter
->curr_cmd
->wait_q_enabled
= false;
989 adapter
->cmd_wait_q
.status
= -1;
990 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
992 /* Cancel all pending command */
993 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
994 list_for_each_entry_safe(cmd_node
, tmp_node
,
995 &adapter
->cmd_pending_q
, list
) {
996 list_del(&cmd_node
->list
);
997 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
999 if (cmd_node
->wait_q_enabled
) {
1000 adapter
->cmd_wait_q
.status
= -1;
1001 mwifiex_complete_cmd(adapter
, cmd_node
);
1002 cmd_node
->wait_q_enabled
= false;
1004 mwifiex_recycle_cmd_node(adapter
, cmd_node
);
1005 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
1007 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
1008 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1010 /* Cancel all pending scan command */
1011 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
1012 list_for_each_entry_safe(cmd_node
, tmp_node
,
1013 &adapter
->scan_pending_q
, list
) {
1014 list_del(&cmd_node
->list
);
1015 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
1017 cmd_node
->wait_q_enabled
= false;
1018 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1019 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
1021 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
1023 if (adapter
->scan_processing
) {
1024 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1025 adapter
->scan_processing
= false;
1026 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1027 for (i
= 0; i
< adapter
->priv_num
; i
++) {
1028 priv
= adapter
->priv
[i
];
1031 if (priv
->scan_request
) {
1032 dev_dbg(adapter
->dev
, "info: aborting scan\n");
1033 cfg80211_scan_done(priv
->scan_request
, 1);
1034 priv
->scan_request
= NULL
;
1041 * This function cancels all pending commands that matches with
1042 * the given IOCTL request.
1044 * Both the current command buffer and the pending command queue are
1045 * searched for matching IOCTL request. The completion callback of
1046 * the matched command is called with failure status to ensure cleanup.
1047 * In case of scan commands, all pending commands in scan pending queue
1051 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter
*adapter
)
1053 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
= NULL
;
1054 unsigned long cmd_flags
;
1055 unsigned long scan_pending_q_flags
;
1056 struct mwifiex_private
*priv
;
1059 if ((adapter
->curr_cmd
) &&
1060 (adapter
->curr_cmd
->wait_q_enabled
)) {
1061 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1062 cmd_node
= adapter
->curr_cmd
;
1063 cmd_node
->wait_q_enabled
= false;
1064 cmd_node
->cmd_flag
|= CMD_F_CANCELED
;
1065 mwifiex_recycle_cmd_node(adapter
, cmd_node
);
1066 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
1067 adapter
->curr_cmd
= NULL
;
1068 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1071 /* Cancel all pending scan command */
1072 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1073 scan_pending_q_flags
);
1074 list_for_each_entry_safe(cmd_node
, tmp_node
,
1075 &adapter
->scan_pending_q
, list
) {
1076 list_del(&cmd_node
->list
);
1077 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1078 scan_pending_q_flags
);
1079 cmd_node
->wait_q_enabled
= false;
1080 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1081 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1082 scan_pending_q_flags
);
1084 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1085 scan_pending_q_flags
);
1087 if (adapter
->scan_processing
) {
1088 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1089 adapter
->scan_processing
= false;
1090 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1091 for (i
= 0; i
< adapter
->priv_num
; i
++) {
1092 priv
= adapter
->priv
[i
];
1095 if (priv
->scan_request
) {
1096 dev_dbg(adapter
->dev
, "info: aborting scan\n");
1097 cfg80211_scan_done(priv
->scan_request
, 1);
1098 priv
->scan_request
= NULL
;
1102 adapter
->cmd_wait_q
.status
= -1;
1106 * This function sends the sleep confirm command to firmware, if
1109 * The sleep confirm command cannot be issued if command response,
1110 * data response or event response is awaiting handling, or if we
1111 * are in the middle of sending a command, or expecting a command
1115 mwifiex_check_ps_cond(struct mwifiex_adapter
*adapter
)
1117 if (!adapter
->cmd_sent
&&
1118 !adapter
->curr_cmd
&& !IS_CARD_RX_RCVD(adapter
))
1119 mwifiex_dnld_sleep_confirm_cmd(adapter
);
1121 dev_dbg(adapter
->dev
,
1122 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1123 (adapter
->cmd_sent
) ? "D" : "",
1124 (adapter
->curr_cmd
) ? "C" : "",
1125 (IS_CARD_RX_RCVD(adapter
)) ? "R" : "");
1129 * This function sends a Host Sleep activated event to applications.
1131 * This event is generated by the driver, with a blank event body.
1134 mwifiex_hs_activated_event(struct mwifiex_private
*priv
, u8 activated
)
1137 if (priv
->adapter
->is_hs_configured
) {
1138 priv
->adapter
->hs_activated
= true;
1139 mwifiex_update_rxreor_flags(priv
->adapter
,
1140 RXREOR_FORCE_NO_DROP
);
1141 dev_dbg(priv
->adapter
->dev
, "event: hs_activated\n");
1142 priv
->adapter
->hs_activate_wait_q_woken
= true;
1143 wake_up_interruptible(
1144 &priv
->adapter
->hs_activate_wait_q
);
1146 dev_dbg(priv
->adapter
->dev
, "event: HS not configured\n");
1149 dev_dbg(priv
->adapter
->dev
, "event: hs_deactivated\n");
1150 priv
->adapter
->hs_activated
= false;
1155 * This function handles the command response of a Host Sleep configuration
1158 * Handling includes changing the header fields into CPU format
1159 * and setting the current host sleep activation status in driver.
1161 * In case host sleep status change, the function generates an event to
1162 * notify the applications.
1164 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private
*priv
,
1165 struct host_cmd_ds_command
*resp
)
1167 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1168 struct host_cmd_ds_802_11_hs_cfg_enh
*phs_cfg
=
1169 &resp
->params
.opt_hs_cfg
;
1170 uint32_t conditions
= le32_to_cpu(phs_cfg
->params
.hs_config
.conditions
);
1172 if (phs_cfg
->action
== cpu_to_le16(HS_ACTIVATE
) &&
1173 adapter
->iface_type
!= MWIFIEX_USB
) {
1174 mwifiex_hs_activated_event(priv
, true);
1177 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: HS_CFG cmd reply"
1178 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1179 resp
->result
, conditions
,
1180 phs_cfg
->params
.hs_config
.gpio
,
1181 phs_cfg
->params
.hs_config
.gap
);
1183 if (conditions
!= HS_CFG_CANCEL
) {
1184 adapter
->is_hs_configured
= true;
1185 if (adapter
->iface_type
== MWIFIEX_USB
)
1186 mwifiex_hs_activated_event(priv
, true);
1188 adapter
->is_hs_configured
= false;
1189 if (adapter
->hs_activated
)
1190 mwifiex_hs_activated_event(priv
, false);
1197 * This function wakes up the adapter and generates a Host Sleep
1198 * cancel event on receiving the power up interrupt.
1201 mwifiex_process_hs_config(struct mwifiex_adapter
*adapter
)
1203 dev_dbg(adapter
->dev
, "info: %s: auto cancelling host sleep"
1204 " since there is interrupt from the firmware\n", __func__
);
1206 adapter
->if_ops
.wakeup(adapter
);
1207 adapter
->hs_activated
= false;
1208 adapter
->is_hs_configured
= false;
1209 adapter
->is_suspended
= false;
1210 mwifiex_hs_activated_event(mwifiex_get_priv(adapter
,
1211 MWIFIEX_BSS_ROLE_ANY
),
1214 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config
);
1217 * This function handles the command response of a sleep confirm command.
1219 * The function sets the card state to SLEEP if the response indicates success.
1222 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter
*adapter
,
1223 u8
*pbuf
, u32 upld_len
)
1225 struct host_cmd_ds_command
*cmd
= (struct host_cmd_ds_command
*) pbuf
;
1226 struct mwifiex_private
*priv
=
1227 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1228 uint16_t result
= le16_to_cpu(cmd
->result
);
1229 uint16_t command
= le16_to_cpu(cmd
->command
);
1230 uint16_t seq_num
= le16_to_cpu(cmd
->seq_num
);
1233 dev_err(adapter
->dev
, "%s: cmd size is 0\n", __func__
);
1237 /* Get BSS number and corresponding priv */
1238 priv
= mwifiex_get_priv_by_id(adapter
, HostCmd_GET_BSS_NO(seq_num
),
1239 HostCmd_GET_BSS_TYPE(seq_num
));
1241 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1243 /* Update sequence number */
1244 seq_num
= HostCmd_GET_SEQ_NO(seq_num
);
1245 /* Clear RET_BIT from HostCmd */
1246 command
&= HostCmd_CMD_ID_MASK
;
1248 if (command
!= HostCmd_CMD_802_11_PS_MODE_ENH
) {
1249 dev_err(adapter
->dev
,
1250 "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
1251 __func__
, command
, result
);
1256 dev_err(adapter
->dev
, "%s: sleep confirm cmd failed\n",
1258 adapter
->pm_wakeup_card_req
= false;
1259 adapter
->ps_state
= PS_STATE_AWAKE
;
1262 adapter
->pm_wakeup_card_req
= true;
1263 if (adapter
->is_hs_configured
)
1264 mwifiex_hs_activated_event(mwifiex_get_priv
1265 (adapter
, MWIFIEX_BSS_ROLE_ANY
),
1267 adapter
->ps_state
= PS_STATE_SLEEP
;
1268 cmd
->command
= cpu_to_le16(command
);
1269 cmd
->seq_num
= cpu_to_le16(seq_num
);
1271 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp
);
1274 * This function prepares an enhanced power mode command.
1276 * This function can be used to disable power save or to configure
1277 * power save with auto PS or STA PS or auto deep sleep.
1279 * Preparation includes -
1280 * - Setting command ID, action and proper size
1281 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1282 * auto deep sleep TLV (as required)
1283 * - Ensuring correct endian-ness
1285 int mwifiex_cmd_enh_power_mode(struct mwifiex_private
*priv
,
1286 struct host_cmd_ds_command
*cmd
,
1287 u16 cmd_action
, uint16_t ps_bitmap
,
1288 struct mwifiex_ds_auto_ds
*auto_ds
)
1290 struct host_cmd_ds_802_11_ps_mode_enh
*psmode_enh
=
1291 &cmd
->params
.psmode_enh
;
1295 cmd
->command
= cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH
);
1296 if (cmd_action
== DIS_AUTO_PS
) {
1297 psmode_enh
->action
= cpu_to_le16(DIS_AUTO_PS
);
1298 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1299 cmd
->size
= cpu_to_le16(S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1300 sizeof(psmode_enh
->params
.ps_bitmap
));
1301 } else if (cmd_action
== GET_PS
) {
1302 psmode_enh
->action
= cpu_to_le16(GET_PS
);
1303 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1304 cmd
->size
= cpu_to_le16(S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1305 sizeof(psmode_enh
->params
.ps_bitmap
));
1306 } else if (cmd_action
== EN_AUTO_PS
) {
1307 psmode_enh
->action
= cpu_to_le16(EN_AUTO_PS
);
1308 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1309 cmd_size
= S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1310 sizeof(psmode_enh
->params
.ps_bitmap
);
1311 tlv
= (u8
*) cmd
+ cmd_size
;
1312 if (ps_bitmap
& BITMAP_STA_PS
) {
1313 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1314 struct mwifiex_ie_types_ps_param
*ps_tlv
=
1315 (struct mwifiex_ie_types_ps_param
*) tlv
;
1316 struct mwifiex_ps_param
*ps_mode
= &ps_tlv
->param
;
1317 ps_tlv
->header
.type
= cpu_to_le16(TLV_TYPE_PS_PARAM
);
1318 ps_tlv
->header
.len
= cpu_to_le16(sizeof(*ps_tlv
) -
1319 sizeof(struct mwifiex_ie_types_header
));
1320 cmd_size
+= sizeof(*ps_tlv
);
1321 tlv
+= sizeof(*ps_tlv
);
1322 dev_dbg(adapter
->dev
, "cmd: PS Command: Enter PS\n");
1323 ps_mode
->null_pkt_interval
=
1324 cpu_to_le16(adapter
->null_pkt_interval
);
1325 ps_mode
->multiple_dtims
=
1326 cpu_to_le16(adapter
->multiple_dtim
);
1327 ps_mode
->bcn_miss_timeout
=
1328 cpu_to_le16(adapter
->bcn_miss_time_out
);
1329 ps_mode
->local_listen_interval
=
1330 cpu_to_le16(adapter
->local_listen_interval
);
1331 ps_mode
->adhoc_wake_period
=
1332 cpu_to_le16(adapter
->adhoc_awake_period
);
1333 ps_mode
->delay_to_ps
=
1334 cpu_to_le16(adapter
->delay_to_ps
);
1335 ps_mode
->mode
= cpu_to_le16(adapter
->enhanced_ps_mode
);
1338 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1339 struct mwifiex_ie_types_auto_ds_param
*auto_ds_tlv
=
1340 (struct mwifiex_ie_types_auto_ds_param
*) tlv
;
1343 auto_ds_tlv
->header
.type
=
1344 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM
);
1345 auto_ds_tlv
->header
.len
=
1346 cpu_to_le16(sizeof(*auto_ds_tlv
) -
1347 sizeof(struct mwifiex_ie_types_header
));
1348 cmd_size
+= sizeof(*auto_ds_tlv
);
1349 tlv
+= sizeof(*auto_ds_tlv
);
1351 idletime
= auto_ds
->idle_time
;
1352 dev_dbg(priv
->adapter
->dev
,
1353 "cmd: PS Command: Enter Auto Deep Sleep\n");
1354 auto_ds_tlv
->deep_sleep_timeout
= cpu_to_le16(idletime
);
1356 cmd
->size
= cpu_to_le16(cmd_size
);
1362 * This function handles the command response of an enhanced power mode
1365 * Handling includes changing the header fields into CPU format
1366 * and setting the current enhanced power mode in driver.
1368 int mwifiex_ret_enh_power_mode(struct mwifiex_private
*priv
,
1369 struct host_cmd_ds_command
*resp
,
1370 struct mwifiex_ds_pm_cfg
*pm_cfg
)
1372 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1373 struct host_cmd_ds_802_11_ps_mode_enh
*ps_mode
=
1374 &resp
->params
.psmode_enh
;
1375 uint16_t action
= le16_to_cpu(ps_mode
->action
);
1376 uint16_t ps_bitmap
= le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1377 uint16_t auto_ps_bitmap
=
1378 le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1380 dev_dbg(adapter
->dev
,
1381 "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1382 __func__
, resp
->result
, action
);
1383 if (action
== EN_AUTO_PS
) {
1384 if (auto_ps_bitmap
& BITMAP_AUTO_DS
) {
1385 dev_dbg(adapter
->dev
, "cmd: Enabled auto deep sleep\n");
1386 priv
->adapter
->is_deep_sleep
= true;
1388 if (auto_ps_bitmap
& BITMAP_STA_PS
) {
1389 dev_dbg(adapter
->dev
, "cmd: Enabled STA power save\n");
1390 if (adapter
->sleep_period
.period
)
1391 dev_dbg(adapter
->dev
,
1392 "cmd: set to uapsd/pps mode\n");
1394 } else if (action
== DIS_AUTO_PS
) {
1395 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1396 priv
->adapter
->is_deep_sleep
= false;
1397 dev_dbg(adapter
->dev
, "cmd: Disabled auto deep sleep\n");
1399 if (ps_bitmap
& BITMAP_STA_PS
) {
1400 dev_dbg(adapter
->dev
, "cmd: Disabled STA power save\n");
1401 if (adapter
->sleep_period
.period
) {
1402 adapter
->delay_null_pkt
= false;
1403 adapter
->tx_lock_flag
= false;
1404 adapter
->pps_uapsd_mode
= false;
1407 } else if (action
== GET_PS
) {
1408 if (ps_bitmap
& BITMAP_STA_PS
)
1409 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_PSP
;
1411 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_CAM
;
1413 dev_dbg(adapter
->dev
, "cmd: ps_bitmap=%#x\n", ps_bitmap
);
1416 /* This section is for get power save mode */
1417 if (ps_bitmap
& BITMAP_STA_PS
)
1418 pm_cfg
->param
.ps_mode
= 1;
1420 pm_cfg
->param
.ps_mode
= 0;
1427 * This function prepares command to get hardware specifications.
1429 * Preparation includes -
1430 * - Setting command ID, action and proper size
1431 * - Setting permanent address parameter
1432 * - Ensuring correct endian-ness
1434 int mwifiex_cmd_get_hw_spec(struct mwifiex_private
*priv
,
1435 struct host_cmd_ds_command
*cmd
)
1437 struct host_cmd_ds_get_hw_spec
*hw_spec
= &cmd
->params
.hw_spec
;
1439 cmd
->command
= cpu_to_le16(HostCmd_CMD_GET_HW_SPEC
);
1441 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec
) + S_DS_GEN
);
1442 memcpy(hw_spec
->permanent_addr
, priv
->curr_addr
, ETH_ALEN
);
1448 * This function handles the command response of get hardware
1451 * Handling includes changing the header fields into CPU format
1452 * and saving/updating the following parameters in driver -
1453 * - Firmware capability information
1454 * - Firmware band settings
1455 * - Ad-hoc start band and channel
1456 * - Ad-hoc 11n activation status
1457 * - Firmware release number
1458 * - Number of antennas
1459 * - Hardware address
1460 * - Hardware interface version
1461 * - Firmware version
1463 * - 11n capabilities
1464 * - MCS support fields
1467 int mwifiex_ret_get_hw_spec(struct mwifiex_private
*priv
,
1468 struct host_cmd_ds_command
*resp
)
1470 struct host_cmd_ds_get_hw_spec
*hw_spec
= &resp
->params
.hw_spec
;
1471 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1472 struct mwifiex_ie_types_header
*tlv
;
1473 struct hw_spec_fw_api_rev
*api_rev
;
1474 u16 resp_size
, api_id
;
1475 int i
, left_len
, parsed_len
= 0;
1477 adapter
->fw_cap_info
= le32_to_cpu(hw_spec
->fw_cap_info
);
1479 if (IS_SUPPORT_MULTI_BANDS(adapter
))
1480 adapter
->fw_bands
= (u8
) GET_FW_DEFAULT_BANDS(adapter
);
1482 adapter
->fw_bands
= BAND_B
;
1484 adapter
->config_bands
= adapter
->fw_bands
;
1486 if (adapter
->fw_bands
& BAND_A
) {
1487 if (adapter
->fw_bands
& BAND_GN
) {
1488 adapter
->config_bands
|= BAND_AN
;
1489 adapter
->fw_bands
|= BAND_AN
;
1491 if (adapter
->fw_bands
& BAND_AN
) {
1492 adapter
->adhoc_start_band
= BAND_A
| BAND_AN
;
1493 adapter
->adhoc_11n_enabled
= true;
1495 adapter
->adhoc_start_band
= BAND_A
;
1497 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL_A
;
1498 } else if (adapter
->fw_bands
& BAND_GN
) {
1499 adapter
->adhoc_start_band
= BAND_G
| BAND_B
| BAND_GN
;
1500 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1501 adapter
->adhoc_11n_enabled
= true;
1502 } else if (adapter
->fw_bands
& BAND_G
) {
1503 adapter
->adhoc_start_band
= BAND_G
| BAND_B
;
1504 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1505 } else if (adapter
->fw_bands
& BAND_B
) {
1506 adapter
->adhoc_start_band
= BAND_B
;
1507 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1510 adapter
->fw_release_number
= le32_to_cpu(hw_spec
->fw_release_number
);
1511 adapter
->fw_api_ver
= (adapter
->fw_release_number
>> 16) & 0xff;
1512 adapter
->number_of_antenna
= le16_to_cpu(hw_spec
->number_of_antenna
);
1514 if (le32_to_cpu(hw_spec
->dot_11ac_dev_cap
)) {
1515 adapter
->is_hw_11ac_capable
= true;
1518 adapter
->hw_dot_11ac_dev_cap
=
1519 le32_to_cpu(hw_spec
->dot_11ac_dev_cap
);
1520 adapter
->usr_dot_11ac_dev_cap_bg
= adapter
->hw_dot_11ac_dev_cap
1521 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK
;
1522 adapter
->usr_dot_11ac_dev_cap_a
= adapter
->hw_dot_11ac_dev_cap
1523 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK
;
1526 adapter
->hw_dot_11ac_mcs_support
=
1527 le32_to_cpu(hw_spec
->dot_11ac_mcs_support
);
1528 adapter
->usr_dot_11ac_mcs_support
=
1529 adapter
->hw_dot_11ac_mcs_support
;
1531 adapter
->is_hw_11ac_capable
= false;
1534 resp_size
= le16_to_cpu(resp
->size
) - S_DS_GEN
;
1535 if (resp_size
> sizeof(struct host_cmd_ds_get_hw_spec
)) {
1536 /* we have variable HW SPEC information */
1537 left_len
= resp_size
- sizeof(struct host_cmd_ds_get_hw_spec
);
1538 while (left_len
> sizeof(struct mwifiex_ie_types_header
)) {
1539 tlv
= (void *)&hw_spec
->tlvs
+ parsed_len
;
1540 switch (le16_to_cpu(tlv
->type
)) {
1541 case TLV_TYPE_FW_API_REV
:
1542 api_rev
= (struct hw_spec_fw_api_rev
*)tlv
;
1543 api_id
= le16_to_cpu(api_rev
->api_id
);
1545 case KEY_API_VER_ID
:
1546 adapter
->fw_key_api_major_ver
=
1548 adapter
->fw_key_api_minor_ver
=
1550 dev_dbg(adapter
->dev
,
1551 "fw_key_api v%d.%d\n",
1552 adapter
->fw_key_api_major_ver
,
1553 adapter
->fw_key_api_minor_ver
);
1556 dev_warn(adapter
->dev
,
1557 "Unknown FW api_id: %d\n",
1563 dev_warn(adapter
->dev
,
1564 "Unknown GET_HW_SPEC TLV type: %#x\n",
1565 le16_to_cpu(tlv
->type
));
1568 parsed_len
+= le16_to_cpu(tlv
->len
) +
1569 sizeof(struct mwifiex_ie_types_header
);
1570 left_len
-= parsed_len
;
1574 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: fw_release_number- %#x\n",
1575 adapter
->fw_release_number
);
1576 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: permanent addr: %pM\n",
1577 hw_spec
->permanent_addr
);
1578 dev_dbg(adapter
->dev
,
1579 "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
1580 le16_to_cpu(hw_spec
->hw_if_version
),
1581 le16_to_cpu(hw_spec
->version
));
1583 if (priv
->curr_addr
[0] == 0xff)
1584 memmove(priv
->curr_addr
, hw_spec
->permanent_addr
, ETH_ALEN
);
1586 adapter
->region_code
= le16_to_cpu(hw_spec
->region_code
);
1588 for (i
= 0; i
< MWIFIEX_MAX_REGION_CODE
; i
++)
1589 /* Use the region code to search for the index */
1590 if (adapter
->region_code
== region_code_index
[i
])
1593 /* If it's unidentified region code, use the default (USA) */
1594 if (i
>= MWIFIEX_MAX_REGION_CODE
) {
1595 adapter
->region_code
= 0x10;
1596 dev_dbg(adapter
->dev
,
1597 "cmd: unknown region code, use default (USA)\n");
1600 adapter
->hw_dot_11n_dev_cap
= le32_to_cpu(hw_spec
->dot_11n_dev_cap
);
1601 adapter
->hw_dev_mcs_support
= hw_spec
->dev_mcs_support
;
1602 adapter
->user_dev_mcs_support
= adapter
->hw_dev_mcs_support
;
1604 if (adapter
->if_ops
.update_mp_end_port
)
1605 adapter
->if_ops
.update_mp_end_port(adapter
,
1606 le16_to_cpu(hw_spec
->mp_end_port
));