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
);
280 sleep_cfm_buf
->seq_num
=
281 cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
282 (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
->surprise_removed
) {
513 dev_err(adapter
->dev
, "PREP_CMD: card is removed\n");
517 if (adapter
->num_cmd_timeout
) {
518 dev_err(adapter
->dev
, "PREP_CMD: FW is in bad state\n");
522 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_RESET
) {
523 if (cmd_no
!= HostCmd_CMD_FUNC_INIT
) {
524 dev_err(adapter
->dev
, "PREP_CMD: FW in reset state\n");
529 /* Get a new command node */
530 cmd_node
= mwifiex_get_cmd_node(adapter
);
533 dev_err(adapter
->dev
, "PREP_CMD: no free cmd node\n");
537 /* Initialize the command node */
538 mwifiex_init_cmd_node(priv
, cmd_node
, cmd_oid
, data_buf
, sync
);
540 if (!cmd_node
->cmd_skb
) {
541 dev_err(adapter
->dev
, "PREP_CMD: no free cmd buf\n");
545 memset(skb_put(cmd_node
->cmd_skb
, sizeof(struct host_cmd_ds_command
)),
546 0, sizeof(struct host_cmd_ds_command
));
548 cmd_ptr
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
549 cmd_ptr
->command
= cpu_to_le16(cmd_no
);
552 /* Prepare command */
555 case HostCmd_CMD_UAP_SYS_CONFIG
:
556 case HostCmd_CMD_UAP_BSS_START
:
557 case HostCmd_CMD_UAP_BSS_STOP
:
558 case HostCmd_CMD_UAP_STA_DEAUTH
:
559 ret
= mwifiex_uap_prepare_cmd(priv
, cmd_no
, cmd_action
,
564 ret
= mwifiex_sta_prepare_cmd(priv
, cmd_no
, cmd_action
,
570 ret
= mwifiex_cmd_host_cmd(priv
, cmd_ptr
, data_buf
);
571 cmd_node
->cmd_flag
|= CMD_F_HOSTCMD
;
574 /* Return error, since the command preparation failed */
576 dev_err(adapter
->dev
, "PREP_CMD: cmd %#x preparation failed\n",
578 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
583 if (cmd_no
== HostCmd_CMD_802_11_SCAN
||
584 cmd_no
== HostCmd_CMD_802_11_SCAN_EXT
) {
585 mwifiex_queue_scan_cmd(priv
, cmd_node
);
587 mwifiex_insert_cmd_to_pending_q(adapter
, cmd_node
, true);
588 queue_work(adapter
->workqueue
, &adapter
->main_work
);
589 if (cmd_node
->wait_q_enabled
)
590 ret
= mwifiex_wait_queue_complete(adapter
, cmd_node
);
597 * This function returns a command to the command free queue.
599 * The function also calls the completion callback if required, before
600 * cleaning the command node and re-inserting it into the free queue.
603 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter
*adapter
,
604 struct cmd_ctrl_node
*cmd_node
)
611 if (cmd_node
->wait_q_enabled
)
612 mwifiex_complete_cmd(adapter
, cmd_node
);
614 mwifiex_clean_cmd_node(adapter
, cmd_node
);
616 /* Insert node into cmd_free_q */
617 spin_lock_irqsave(&adapter
->cmd_free_q_lock
, flags
);
618 list_add_tail(&cmd_node
->list
, &adapter
->cmd_free_q
);
619 spin_unlock_irqrestore(&adapter
->cmd_free_q_lock
, flags
);
622 /* This function reuses a command node. */
623 void mwifiex_recycle_cmd_node(struct mwifiex_adapter
*adapter
,
624 struct cmd_ctrl_node
*cmd_node
)
626 struct host_cmd_ds_command
*host_cmd
= (void *)cmd_node
->cmd_skb
->data
;
628 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
630 atomic_dec(&adapter
->cmd_pending
);
631 dev_dbg(adapter
->dev
, "cmd: FREE_CMD: cmd=%#x, cmd_pending=%d\n",
632 le16_to_cpu(host_cmd
->command
),
633 atomic_read(&adapter
->cmd_pending
));
637 * This function queues a command to the command pending queue.
639 * This in effect adds the command to the command list to be executed.
640 * Exit PS command is handled specially, by placing it always to the
641 * front of the command queue.
644 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter
*adapter
,
645 struct cmd_ctrl_node
*cmd_node
, u32 add_tail
)
647 struct host_cmd_ds_command
*host_cmd
= NULL
;
651 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
653 dev_err(adapter
->dev
, "QUEUE_CMD: host_cmd is NULL\n");
657 command
= le16_to_cpu(host_cmd
->command
);
659 /* Exit_PS command needs to be queued in the header always. */
660 if (command
== HostCmd_CMD_802_11_PS_MODE_ENH
) {
661 struct host_cmd_ds_802_11_ps_mode_enh
*pm
=
662 &host_cmd
->params
.psmode_enh
;
663 if ((le16_to_cpu(pm
->action
) == DIS_PS
) ||
664 (le16_to_cpu(pm
->action
) == DIS_AUTO_PS
)) {
665 if (adapter
->ps_state
!= PS_STATE_AWAKE
)
670 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
672 list_add_tail(&cmd_node
->list
, &adapter
->cmd_pending_q
);
674 list_add(&cmd_node
->list
, &adapter
->cmd_pending_q
);
675 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
677 atomic_inc(&adapter
->cmd_pending
);
678 dev_dbg(adapter
->dev
, "cmd: QUEUE_CMD: cmd=%#x, cmd_pending=%d\n",
679 command
, atomic_read(&adapter
->cmd_pending
));
683 * This function executes the next command in command pending queue.
685 * This function will fail if a command is already in processing stage,
686 * otherwise it will dequeue the first command from the command pending
687 * queue and send to the firmware.
689 * If the device is currently in host sleep mode, any commands, except the
690 * host sleep configuration command will de-activate the host sleep. For PS
691 * mode, the function will put the firmware back to sleep if applicable.
693 int mwifiex_exec_next_cmd(struct mwifiex_adapter
*adapter
)
695 struct mwifiex_private
*priv
;
696 struct cmd_ctrl_node
*cmd_node
;
698 struct host_cmd_ds_command
*host_cmd
;
699 unsigned long cmd_flags
;
700 unsigned long cmd_pending_q_flags
;
702 /* Check if already in processing */
703 if (adapter
->curr_cmd
) {
704 dev_err(adapter
->dev
, "EXEC_NEXT_CMD: cmd in processing\n");
708 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
709 /* Check if any command is pending */
710 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
711 if (list_empty(&adapter
->cmd_pending_q
)) {
712 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
713 cmd_pending_q_flags
);
714 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
717 cmd_node
= list_first_entry(&adapter
->cmd_pending_q
,
718 struct cmd_ctrl_node
, list
);
719 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
720 cmd_pending_q_flags
);
722 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
723 priv
= cmd_node
->priv
;
725 if (adapter
->ps_state
!= PS_STATE_AWAKE
) {
726 dev_err(adapter
->dev
, "%s: cannot send cmd in sleep state,"
727 " this should not happen\n", __func__
);
728 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
732 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
733 list_del(&cmd_node
->list
);
734 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
735 cmd_pending_q_flags
);
737 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
738 ret
= mwifiex_dnld_cmd_to_fw(priv
, cmd_node
);
739 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
740 /* Any command sent to the firmware when host is in sleep
741 * mode should de-configure host sleep. We should skip the
742 * host sleep configuration command itself though
744 if (priv
&& (host_cmd
->command
!=
745 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH
))) {
746 if (adapter
->hs_activated
) {
747 adapter
->is_hs_configured
= false;
748 mwifiex_hs_activated_event(priv
, false);
756 * This function handles the command response.
758 * After processing, the function cleans the command node and puts
759 * it back to the command free queue.
761 int mwifiex_process_cmdresp(struct mwifiex_adapter
*adapter
)
763 struct host_cmd_ds_command
*resp
;
764 struct mwifiex_private
*priv
=
765 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
767 uint16_t orig_cmdresp_no
;
769 uint16_t cmdresp_result
;
770 struct timeval tstamp
;
773 /* Now we got response from FW, cancel the command timer */
774 del_timer_sync(&adapter
->cmd_timer
);
776 if (!adapter
->curr_cmd
|| !adapter
->curr_cmd
->resp_skb
) {
777 resp
= (struct host_cmd_ds_command
*) adapter
->upld_buf
;
778 dev_err(adapter
->dev
, "CMD_RESP: NULL curr_cmd, %#x\n",
779 le16_to_cpu(resp
->command
));
783 adapter
->num_cmd_timeout
= 0;
785 resp
= (struct host_cmd_ds_command
*) adapter
->curr_cmd
->resp_skb
->data
;
786 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_CANCELED
) {
787 dev_err(adapter
->dev
, "CMD_RESP: %#x been canceled\n",
788 le16_to_cpu(resp
->command
));
789 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
790 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
791 adapter
->curr_cmd
= NULL
;
792 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
796 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
797 /* Copy original response back to response buffer */
798 struct mwifiex_ds_misc_cmd
*hostcmd
;
799 uint16_t size
= le16_to_cpu(resp
->size
);
800 dev_dbg(adapter
->dev
, "info: host cmd resp size = %d\n", size
);
801 size
= min_t(u16
, size
, MWIFIEX_SIZE_OF_CMD_BUFFER
);
802 if (adapter
->curr_cmd
->data_buf
) {
803 hostcmd
= adapter
->curr_cmd
->data_buf
;
805 memcpy(hostcmd
->cmd
, resp
, size
);
808 orig_cmdresp_no
= le16_to_cpu(resp
->command
);
810 /* Get BSS number and corresponding priv */
811 priv
= mwifiex_get_priv_by_id(adapter
,
812 HostCmd_GET_BSS_NO(le16_to_cpu(resp
->seq_num
)),
813 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp
->seq_num
)));
815 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
816 /* Clear RET_BIT from HostCmd */
817 resp
->command
= cpu_to_le16(orig_cmdresp_no
& HostCmd_CMD_ID_MASK
);
819 cmdresp_no
= le16_to_cpu(resp
->command
);
820 cmdresp_result
= le16_to_cpu(resp
->result
);
822 /* Save the last command response to debug log */
823 adapter
->dbg
.last_cmd_resp_index
=
824 (adapter
->dbg
.last_cmd_resp_index
+ 1) % DBG_CMD_NUM
;
825 adapter
->dbg
.last_cmd_resp_id
[adapter
->dbg
.last_cmd_resp_index
] =
828 do_gettimeofday(&tstamp
);
829 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
830 " len %d, seqno 0x%x\n",
831 tstamp
.tv_sec
, tstamp
.tv_usec
, orig_cmdresp_no
, cmdresp_result
,
832 le16_to_cpu(resp
->size
), le16_to_cpu(resp
->seq_num
));
834 if (!(orig_cmdresp_no
& HostCmd_RET_BIT
)) {
835 dev_err(adapter
->dev
, "CMD_RESP: invalid cmd resp\n");
836 if (adapter
->curr_cmd
->wait_q_enabled
)
837 adapter
->cmd_wait_q
.status
= -1;
839 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
840 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
841 adapter
->curr_cmd
= NULL
;
842 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
846 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
847 adapter
->curr_cmd
->cmd_flag
&= ~CMD_F_HOSTCMD
;
848 if ((cmdresp_result
== HostCmd_RESULT_OK
) &&
849 (cmdresp_no
== HostCmd_CMD_802_11_HS_CFG_ENH
))
850 ret
= mwifiex_ret_802_11_hs_cfg(priv
, resp
);
852 /* handle response */
853 ret
= mwifiex_process_sta_cmdresp(priv
, cmdresp_no
, resp
);
856 /* Check init command response */
857 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
) {
859 dev_err(adapter
->dev
, "%s: cmd %#x failed during "
860 "initialization\n", __func__
, cmdresp_no
);
861 mwifiex_init_fw_complete(adapter
);
863 } else if (adapter
->last_init_cmd
== cmdresp_no
)
864 adapter
->hw_status
= MWIFIEX_HW_STATUS_INIT_DONE
;
867 if (adapter
->curr_cmd
) {
868 if (adapter
->curr_cmd
->wait_q_enabled
)
869 adapter
->cmd_wait_q
.status
= ret
;
871 mwifiex_recycle_cmd_node(adapter
, adapter
->curr_cmd
);
873 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
874 adapter
->curr_cmd
= NULL
;
875 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
882 * This function handles the timeout of command sending.
884 * It will re-send the same command again.
887 mwifiex_cmd_timeout_func(unsigned long function_context
)
889 struct mwifiex_adapter
*adapter
=
890 (struct mwifiex_adapter
*) function_context
;
891 struct cmd_ctrl_node
*cmd_node
;
892 struct timeval tstamp
;
894 adapter
->num_cmd_timeout
++;
895 if (!adapter
->curr_cmd
) {
896 dev_dbg(adapter
->dev
, "cmd: empty curr_cmd\n");
899 cmd_node
= adapter
->curr_cmd
;
901 adapter
->dbg
.timeout_cmd_id
=
902 adapter
->dbg
.last_cmd_id
[adapter
->dbg
.last_cmd_index
];
903 adapter
->dbg
.timeout_cmd_act
=
904 adapter
->dbg
.last_cmd_act
[adapter
->dbg
.last_cmd_index
];
905 do_gettimeofday(&tstamp
);
906 dev_err(adapter
->dev
,
907 "%s: Timeout cmd id (%lu.%lu) = %#x, act = %#x\n",
908 __func__
, tstamp
.tv_sec
, tstamp
.tv_usec
,
909 adapter
->dbg
.timeout_cmd_id
,
910 adapter
->dbg
.timeout_cmd_act
);
912 dev_err(adapter
->dev
, "num_data_h2c_failure = %d\n",
913 adapter
->dbg
.num_tx_host_to_card_failure
);
914 dev_err(adapter
->dev
, "num_cmd_h2c_failure = %d\n",
915 adapter
->dbg
.num_cmd_host_to_card_failure
);
917 dev_err(adapter
->dev
, "num_cmd_timeout = %d\n",
918 adapter
->num_cmd_timeout
);
919 dev_err(adapter
->dev
, "num_tx_timeout = %d\n",
920 adapter
->dbg
.num_tx_timeout
);
922 dev_err(adapter
->dev
, "last_cmd_index = %d\n",
923 adapter
->dbg
.last_cmd_index
);
924 dev_err(adapter
->dev
, "last_cmd_id: %*ph\n",
925 (int)sizeof(adapter
->dbg
.last_cmd_id
),
926 adapter
->dbg
.last_cmd_id
);
927 dev_err(adapter
->dev
, "last_cmd_act: %*ph\n",
928 (int)sizeof(adapter
->dbg
.last_cmd_act
),
929 adapter
->dbg
.last_cmd_act
);
931 dev_err(adapter
->dev
, "last_cmd_resp_index = %d\n",
932 adapter
->dbg
.last_cmd_resp_index
);
933 dev_err(adapter
->dev
, "last_cmd_resp_id: %*ph\n",
934 (int)sizeof(adapter
->dbg
.last_cmd_resp_id
),
935 adapter
->dbg
.last_cmd_resp_id
);
937 dev_err(adapter
->dev
, "last_event_index = %d\n",
938 adapter
->dbg
.last_event_index
);
939 dev_err(adapter
->dev
, "last_event: %*ph\n",
940 (int)sizeof(adapter
->dbg
.last_event
),
941 adapter
->dbg
.last_event
);
943 dev_err(adapter
->dev
, "data_sent=%d cmd_sent=%d\n",
944 adapter
->data_sent
, adapter
->cmd_sent
);
946 dev_err(adapter
->dev
, "ps_mode=%d ps_state=%d\n",
947 adapter
->ps_mode
, adapter
->ps_state
);
949 if (cmd_node
->wait_q_enabled
) {
950 adapter
->cmd_wait_q
.status
= -ETIMEDOUT
;
951 wake_up_interruptible(&adapter
->cmd_wait_q
.wait
);
952 mwifiex_cancel_pending_ioctl(adapter
);
953 /* reset cmd_sent flag to unblock new commands */
954 adapter
->cmd_sent
= false;
957 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
)
958 mwifiex_init_fw_complete(adapter
);
960 if (adapter
->if_ops
.card_reset
)
961 adapter
->if_ops
.card_reset(adapter
);
965 * This function cancels all the pending commands.
967 * The current command, all commands in command pending queue and all scan
968 * commands in scan pending queue are cancelled. All the completion callbacks
969 * are called with failure status to ensure cleanup.
972 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter
*adapter
)
974 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
;
975 unsigned long flags
, cmd_flags
;
976 struct mwifiex_private
*priv
;
979 /* Cancel current cmd */
980 if ((adapter
->curr_cmd
) && (adapter
->curr_cmd
->wait_q_enabled
)) {
981 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
982 adapter
->curr_cmd
->wait_q_enabled
= false;
983 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
984 adapter
->cmd_wait_q
.status
= -1;
985 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
987 /* Cancel all pending command */
988 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
989 list_for_each_entry_safe(cmd_node
, tmp_node
,
990 &adapter
->cmd_pending_q
, list
) {
991 list_del(&cmd_node
->list
);
992 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
994 if (cmd_node
->wait_q_enabled
) {
995 adapter
->cmd_wait_q
.status
= -1;
996 mwifiex_complete_cmd(adapter
, cmd_node
);
997 cmd_node
->wait_q_enabled
= false;
999 mwifiex_recycle_cmd_node(adapter
, cmd_node
);
1000 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
1002 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
1004 /* Cancel all pending scan command */
1005 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
1006 list_for_each_entry_safe(cmd_node
, tmp_node
,
1007 &adapter
->scan_pending_q
, list
) {
1008 list_del(&cmd_node
->list
);
1009 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
1011 cmd_node
->wait_q_enabled
= false;
1012 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1013 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
1015 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
1017 if (adapter
->scan_processing
) {
1018 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1019 adapter
->scan_processing
= false;
1020 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1021 for (i
= 0; i
< adapter
->priv_num
; i
++) {
1022 priv
= adapter
->priv
[i
];
1025 if (priv
->scan_request
) {
1026 dev_dbg(adapter
->dev
, "info: aborting scan\n");
1027 cfg80211_scan_done(priv
->scan_request
, 1);
1028 priv
->scan_request
= NULL
;
1035 * This function cancels all pending commands that matches with
1036 * the given IOCTL request.
1038 * Both the current command buffer and the pending command queue are
1039 * searched for matching IOCTL request. The completion callback of
1040 * the matched command is called with failure status to ensure cleanup.
1041 * In case of scan commands, all pending commands in scan pending queue
1045 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter
*adapter
)
1047 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
= NULL
;
1048 unsigned long cmd_flags
;
1049 unsigned long scan_pending_q_flags
;
1050 struct mwifiex_private
*priv
;
1053 if ((adapter
->curr_cmd
) &&
1054 (adapter
->curr_cmd
->wait_q_enabled
)) {
1055 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1056 cmd_node
= adapter
->curr_cmd
;
1057 cmd_node
->wait_q_enabled
= false;
1058 cmd_node
->cmd_flag
|= CMD_F_CANCELED
;
1059 mwifiex_recycle_cmd_node(adapter
, cmd_node
);
1060 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
1061 adapter
->curr_cmd
= NULL
;
1062 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1065 /* Cancel all pending scan command */
1066 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1067 scan_pending_q_flags
);
1068 list_for_each_entry_safe(cmd_node
, tmp_node
,
1069 &adapter
->scan_pending_q
, list
) {
1070 list_del(&cmd_node
->list
);
1071 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1072 scan_pending_q_flags
);
1073 cmd_node
->wait_q_enabled
= false;
1074 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1075 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1076 scan_pending_q_flags
);
1078 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1079 scan_pending_q_flags
);
1081 if (adapter
->scan_processing
) {
1082 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1083 adapter
->scan_processing
= false;
1084 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1085 for (i
= 0; i
< adapter
->priv_num
; i
++) {
1086 priv
= adapter
->priv
[i
];
1089 if (priv
->scan_request
) {
1090 dev_dbg(adapter
->dev
, "info: aborting scan\n");
1091 cfg80211_scan_done(priv
->scan_request
, 1);
1092 priv
->scan_request
= NULL
;
1096 adapter
->cmd_wait_q
.status
= -1;
1100 * This function sends the sleep confirm command to firmware, if
1103 * The sleep confirm command cannot be issued if command response,
1104 * data response or event response is awaiting handling, or if we
1105 * are in the middle of sending a command, or expecting a command
1109 mwifiex_check_ps_cond(struct mwifiex_adapter
*adapter
)
1111 if (!adapter
->cmd_sent
&&
1112 !adapter
->curr_cmd
&& !IS_CARD_RX_RCVD(adapter
))
1113 mwifiex_dnld_sleep_confirm_cmd(adapter
);
1115 dev_dbg(adapter
->dev
,
1116 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1117 (adapter
->cmd_sent
) ? "D" : "",
1118 (adapter
->curr_cmd
) ? "C" : "",
1119 (IS_CARD_RX_RCVD(adapter
)) ? "R" : "");
1123 * This function sends a Host Sleep activated event to applications.
1125 * This event is generated by the driver, with a blank event body.
1128 mwifiex_hs_activated_event(struct mwifiex_private
*priv
, u8 activated
)
1131 if (priv
->adapter
->is_hs_configured
) {
1132 priv
->adapter
->hs_activated
= true;
1133 mwifiex_update_rxreor_flags(priv
->adapter
,
1134 RXREOR_FORCE_NO_DROP
);
1135 dev_dbg(priv
->adapter
->dev
, "event: hs_activated\n");
1136 priv
->adapter
->hs_activate_wait_q_woken
= true;
1137 wake_up_interruptible(
1138 &priv
->adapter
->hs_activate_wait_q
);
1140 dev_dbg(priv
->adapter
->dev
, "event: HS not configured\n");
1143 dev_dbg(priv
->adapter
->dev
, "event: hs_deactivated\n");
1144 priv
->adapter
->hs_activated
= false;
1149 * This function handles the command response of a Host Sleep configuration
1152 * Handling includes changing the header fields into CPU format
1153 * and setting the current host sleep activation status in driver.
1155 * In case host sleep status change, the function generates an event to
1156 * notify the applications.
1158 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private
*priv
,
1159 struct host_cmd_ds_command
*resp
)
1161 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1162 struct host_cmd_ds_802_11_hs_cfg_enh
*phs_cfg
=
1163 &resp
->params
.opt_hs_cfg
;
1164 uint32_t conditions
= le32_to_cpu(phs_cfg
->params
.hs_config
.conditions
);
1166 if (phs_cfg
->action
== cpu_to_le16(HS_ACTIVATE
) &&
1167 adapter
->iface_type
!= MWIFIEX_USB
) {
1168 mwifiex_hs_activated_event(priv
, true);
1171 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: HS_CFG cmd reply"
1172 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1173 resp
->result
, conditions
,
1174 phs_cfg
->params
.hs_config
.gpio
,
1175 phs_cfg
->params
.hs_config
.gap
);
1177 if (conditions
!= HS_CFG_CANCEL
) {
1178 adapter
->is_hs_configured
= true;
1179 if (adapter
->iface_type
== MWIFIEX_USB
)
1180 mwifiex_hs_activated_event(priv
, true);
1182 adapter
->is_hs_configured
= false;
1183 if (adapter
->hs_activated
)
1184 mwifiex_hs_activated_event(priv
, false);
1191 * This function wakes up the adapter and generates a Host Sleep
1192 * cancel event on receiving the power up interrupt.
1195 mwifiex_process_hs_config(struct mwifiex_adapter
*adapter
)
1197 dev_dbg(adapter
->dev
, "info: %s: auto cancelling host sleep"
1198 " since there is interrupt from the firmware\n", __func__
);
1200 adapter
->if_ops
.wakeup(adapter
);
1201 adapter
->hs_activated
= false;
1202 adapter
->is_hs_configured
= false;
1203 adapter
->is_suspended
= false;
1204 mwifiex_hs_activated_event(mwifiex_get_priv(adapter
,
1205 MWIFIEX_BSS_ROLE_ANY
),
1208 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config
);
1211 * This function handles the command response of a sleep confirm command.
1213 * The function sets the card state to SLEEP if the response indicates success.
1216 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter
*adapter
,
1217 u8
*pbuf
, u32 upld_len
)
1219 struct host_cmd_ds_command
*cmd
= (struct host_cmd_ds_command
*) pbuf
;
1220 struct mwifiex_private
*priv
=
1221 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1222 uint16_t result
= le16_to_cpu(cmd
->result
);
1223 uint16_t command
= le16_to_cpu(cmd
->command
);
1224 uint16_t seq_num
= le16_to_cpu(cmd
->seq_num
);
1227 dev_err(adapter
->dev
, "%s: cmd size is 0\n", __func__
);
1231 /* Get BSS number and corresponding priv */
1232 priv
= mwifiex_get_priv_by_id(adapter
, HostCmd_GET_BSS_NO(seq_num
),
1233 HostCmd_GET_BSS_TYPE(seq_num
));
1235 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1237 /* Update sequence number */
1238 seq_num
= HostCmd_GET_SEQ_NO(seq_num
);
1239 /* Clear RET_BIT from HostCmd */
1240 command
&= HostCmd_CMD_ID_MASK
;
1242 if (command
!= HostCmd_CMD_802_11_PS_MODE_ENH
) {
1243 dev_err(adapter
->dev
,
1244 "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
1245 __func__
, command
, result
);
1250 dev_err(adapter
->dev
, "%s: sleep confirm cmd failed\n",
1252 adapter
->pm_wakeup_card_req
= false;
1253 adapter
->ps_state
= PS_STATE_AWAKE
;
1256 adapter
->pm_wakeup_card_req
= true;
1257 if (adapter
->is_hs_configured
)
1258 mwifiex_hs_activated_event(mwifiex_get_priv
1259 (adapter
, MWIFIEX_BSS_ROLE_ANY
),
1261 adapter
->ps_state
= PS_STATE_SLEEP
;
1262 cmd
->command
= cpu_to_le16(command
);
1263 cmd
->seq_num
= cpu_to_le16(seq_num
);
1265 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp
);
1268 * This function prepares an enhanced power mode command.
1270 * This function can be used to disable power save or to configure
1271 * power save with auto PS or STA PS or auto deep sleep.
1273 * Preparation includes -
1274 * - Setting command ID, action and proper size
1275 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1276 * auto deep sleep TLV (as required)
1277 * - Ensuring correct endian-ness
1279 int mwifiex_cmd_enh_power_mode(struct mwifiex_private
*priv
,
1280 struct host_cmd_ds_command
*cmd
,
1281 u16 cmd_action
, uint16_t ps_bitmap
,
1282 struct mwifiex_ds_auto_ds
*auto_ds
)
1284 struct host_cmd_ds_802_11_ps_mode_enh
*psmode_enh
=
1285 &cmd
->params
.psmode_enh
;
1289 cmd
->command
= cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH
);
1290 if (cmd_action
== DIS_AUTO_PS
) {
1291 psmode_enh
->action
= cpu_to_le16(DIS_AUTO_PS
);
1292 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1293 cmd
->size
= cpu_to_le16(S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1294 sizeof(psmode_enh
->params
.ps_bitmap
));
1295 } else if (cmd_action
== GET_PS
) {
1296 psmode_enh
->action
= cpu_to_le16(GET_PS
);
1297 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1298 cmd
->size
= cpu_to_le16(S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1299 sizeof(psmode_enh
->params
.ps_bitmap
));
1300 } else if (cmd_action
== EN_AUTO_PS
) {
1301 psmode_enh
->action
= cpu_to_le16(EN_AUTO_PS
);
1302 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1303 cmd_size
= S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1304 sizeof(psmode_enh
->params
.ps_bitmap
);
1305 tlv
= (u8
*) cmd
+ cmd_size
;
1306 if (ps_bitmap
& BITMAP_STA_PS
) {
1307 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1308 struct mwifiex_ie_types_ps_param
*ps_tlv
=
1309 (struct mwifiex_ie_types_ps_param
*) tlv
;
1310 struct mwifiex_ps_param
*ps_mode
= &ps_tlv
->param
;
1311 ps_tlv
->header
.type
= cpu_to_le16(TLV_TYPE_PS_PARAM
);
1312 ps_tlv
->header
.len
= cpu_to_le16(sizeof(*ps_tlv
) -
1313 sizeof(struct mwifiex_ie_types_header
));
1314 cmd_size
+= sizeof(*ps_tlv
);
1315 tlv
+= sizeof(*ps_tlv
);
1316 dev_dbg(adapter
->dev
, "cmd: PS Command: Enter PS\n");
1317 ps_mode
->null_pkt_interval
=
1318 cpu_to_le16(adapter
->null_pkt_interval
);
1319 ps_mode
->multiple_dtims
=
1320 cpu_to_le16(adapter
->multiple_dtim
);
1321 ps_mode
->bcn_miss_timeout
=
1322 cpu_to_le16(adapter
->bcn_miss_time_out
);
1323 ps_mode
->local_listen_interval
=
1324 cpu_to_le16(adapter
->local_listen_interval
);
1325 ps_mode
->adhoc_wake_period
=
1326 cpu_to_le16(adapter
->adhoc_awake_period
);
1327 ps_mode
->delay_to_ps
=
1328 cpu_to_le16(adapter
->delay_to_ps
);
1329 ps_mode
->mode
= cpu_to_le16(adapter
->enhanced_ps_mode
);
1332 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1333 struct mwifiex_ie_types_auto_ds_param
*auto_ds_tlv
=
1334 (struct mwifiex_ie_types_auto_ds_param
*) tlv
;
1337 auto_ds_tlv
->header
.type
=
1338 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM
);
1339 auto_ds_tlv
->header
.len
=
1340 cpu_to_le16(sizeof(*auto_ds_tlv
) -
1341 sizeof(struct mwifiex_ie_types_header
));
1342 cmd_size
+= sizeof(*auto_ds_tlv
);
1343 tlv
+= sizeof(*auto_ds_tlv
);
1345 idletime
= auto_ds
->idle_time
;
1346 dev_dbg(priv
->adapter
->dev
,
1347 "cmd: PS Command: Enter Auto Deep Sleep\n");
1348 auto_ds_tlv
->deep_sleep_timeout
= cpu_to_le16(idletime
);
1350 cmd
->size
= cpu_to_le16(cmd_size
);
1356 * This function handles the command response of an enhanced power mode
1359 * Handling includes changing the header fields into CPU format
1360 * and setting the current enhanced power mode in driver.
1362 int mwifiex_ret_enh_power_mode(struct mwifiex_private
*priv
,
1363 struct host_cmd_ds_command
*resp
,
1364 struct mwifiex_ds_pm_cfg
*pm_cfg
)
1366 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1367 struct host_cmd_ds_802_11_ps_mode_enh
*ps_mode
=
1368 &resp
->params
.psmode_enh
;
1369 uint16_t action
= le16_to_cpu(ps_mode
->action
);
1370 uint16_t ps_bitmap
= le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1371 uint16_t auto_ps_bitmap
=
1372 le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1374 dev_dbg(adapter
->dev
,
1375 "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1376 __func__
, resp
->result
, action
);
1377 if (action
== EN_AUTO_PS
) {
1378 if (auto_ps_bitmap
& BITMAP_AUTO_DS
) {
1379 dev_dbg(adapter
->dev
, "cmd: Enabled auto deep sleep\n");
1380 priv
->adapter
->is_deep_sleep
= true;
1382 if (auto_ps_bitmap
& BITMAP_STA_PS
) {
1383 dev_dbg(adapter
->dev
, "cmd: Enabled STA power save\n");
1384 if (adapter
->sleep_period
.period
)
1385 dev_dbg(adapter
->dev
,
1386 "cmd: set to uapsd/pps mode\n");
1388 } else if (action
== DIS_AUTO_PS
) {
1389 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1390 priv
->adapter
->is_deep_sleep
= false;
1391 dev_dbg(adapter
->dev
, "cmd: Disabled auto deep sleep\n");
1393 if (ps_bitmap
& BITMAP_STA_PS
) {
1394 dev_dbg(adapter
->dev
, "cmd: Disabled STA power save\n");
1395 if (adapter
->sleep_period
.period
) {
1396 adapter
->delay_null_pkt
= false;
1397 adapter
->tx_lock_flag
= false;
1398 adapter
->pps_uapsd_mode
= false;
1401 } else if (action
== GET_PS
) {
1402 if (ps_bitmap
& BITMAP_STA_PS
)
1403 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_PSP
;
1405 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_CAM
;
1407 dev_dbg(adapter
->dev
, "cmd: ps_bitmap=%#x\n", ps_bitmap
);
1410 /* This section is for get power save mode */
1411 if (ps_bitmap
& BITMAP_STA_PS
)
1412 pm_cfg
->param
.ps_mode
= 1;
1414 pm_cfg
->param
.ps_mode
= 0;
1421 * This function prepares command to get hardware specifications.
1423 * Preparation includes -
1424 * - Setting command ID, action and proper size
1425 * - Setting permanent address parameter
1426 * - Ensuring correct endian-ness
1428 int mwifiex_cmd_get_hw_spec(struct mwifiex_private
*priv
,
1429 struct host_cmd_ds_command
*cmd
)
1431 struct host_cmd_ds_get_hw_spec
*hw_spec
= &cmd
->params
.hw_spec
;
1433 cmd
->command
= cpu_to_le16(HostCmd_CMD_GET_HW_SPEC
);
1435 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec
) + S_DS_GEN
);
1436 memcpy(hw_spec
->permanent_addr
, priv
->curr_addr
, ETH_ALEN
);
1442 * This function handles the command response of get hardware
1445 * Handling includes changing the header fields into CPU format
1446 * and saving/updating the following parameters in driver -
1447 * - Firmware capability information
1448 * - Firmware band settings
1449 * - Ad-hoc start band and channel
1450 * - Ad-hoc 11n activation status
1451 * - Firmware release number
1452 * - Number of antennas
1453 * - Hardware address
1454 * - Hardware interface version
1455 * - Firmware version
1457 * - 11n capabilities
1458 * - MCS support fields
1461 int mwifiex_ret_get_hw_spec(struct mwifiex_private
*priv
,
1462 struct host_cmd_ds_command
*resp
)
1464 struct host_cmd_ds_get_hw_spec
*hw_spec
= &resp
->params
.hw_spec
;
1465 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1466 struct mwifiex_ie_types_header
*tlv
;
1467 struct hw_spec_fw_api_rev
*api_rev
;
1468 u16 resp_size
, api_id
;
1469 int i
, left_len
, parsed_len
= 0;
1471 adapter
->fw_cap_info
= le32_to_cpu(hw_spec
->fw_cap_info
);
1473 if (IS_SUPPORT_MULTI_BANDS(adapter
))
1474 adapter
->fw_bands
= (u8
) GET_FW_DEFAULT_BANDS(adapter
);
1476 adapter
->fw_bands
= BAND_B
;
1478 adapter
->config_bands
= adapter
->fw_bands
;
1480 if (adapter
->fw_bands
& BAND_A
) {
1481 if (adapter
->fw_bands
& BAND_GN
) {
1482 adapter
->config_bands
|= BAND_AN
;
1483 adapter
->fw_bands
|= BAND_AN
;
1485 if (adapter
->fw_bands
& BAND_AN
) {
1486 adapter
->adhoc_start_band
= BAND_A
| BAND_AN
;
1487 adapter
->adhoc_11n_enabled
= true;
1489 adapter
->adhoc_start_band
= BAND_A
;
1491 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL_A
;
1492 } else if (adapter
->fw_bands
& BAND_GN
) {
1493 adapter
->adhoc_start_band
= BAND_G
| BAND_B
| BAND_GN
;
1494 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1495 adapter
->adhoc_11n_enabled
= true;
1496 } else if (adapter
->fw_bands
& BAND_G
) {
1497 adapter
->adhoc_start_band
= BAND_G
| BAND_B
;
1498 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1499 } else if (adapter
->fw_bands
& BAND_B
) {
1500 adapter
->adhoc_start_band
= BAND_B
;
1501 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1504 adapter
->fw_release_number
= le32_to_cpu(hw_spec
->fw_release_number
);
1505 adapter
->number_of_antenna
= le16_to_cpu(hw_spec
->number_of_antenna
);
1507 if (le32_to_cpu(hw_spec
->dot_11ac_dev_cap
)) {
1508 adapter
->is_hw_11ac_capable
= true;
1511 adapter
->hw_dot_11ac_dev_cap
=
1512 le32_to_cpu(hw_spec
->dot_11ac_dev_cap
);
1513 adapter
->usr_dot_11ac_dev_cap_bg
= adapter
->hw_dot_11ac_dev_cap
1514 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK
;
1515 adapter
->usr_dot_11ac_dev_cap_a
= adapter
->hw_dot_11ac_dev_cap
1516 & ~MWIFIEX_DEF_11AC_CAP_BF_RESET_MASK
;
1519 adapter
->hw_dot_11ac_mcs_support
=
1520 le32_to_cpu(hw_spec
->dot_11ac_mcs_support
);
1521 adapter
->usr_dot_11ac_mcs_support
=
1522 adapter
->hw_dot_11ac_mcs_support
;
1524 adapter
->is_hw_11ac_capable
= false;
1527 resp_size
= le16_to_cpu(resp
->size
) - S_DS_GEN
;
1528 if (resp_size
> sizeof(struct host_cmd_ds_get_hw_spec
)) {
1529 /* we have variable HW SPEC information */
1530 left_len
= resp_size
- sizeof(struct host_cmd_ds_get_hw_spec
);
1531 while (left_len
> sizeof(struct mwifiex_ie_types_header
)) {
1532 tlv
= (void *)&hw_spec
->tlvs
+ parsed_len
;
1533 switch (le16_to_cpu(tlv
->type
)) {
1534 case TLV_TYPE_FW_API_REV
:
1535 api_rev
= (struct hw_spec_fw_api_rev
*)tlv
;
1536 api_id
= le16_to_cpu(api_rev
->api_id
);
1538 case KEY_API_VER_ID
:
1539 adapter
->fw_key_api_major_ver
=
1541 adapter
->fw_key_api_minor_ver
=
1543 dev_dbg(adapter
->dev
,
1544 "fw_key_api v%d.%d\n",
1545 adapter
->fw_key_api_major_ver
,
1546 adapter
->fw_key_api_minor_ver
);
1549 dev_warn(adapter
->dev
,
1550 "Unknown FW api_id: %d\n",
1556 dev_warn(adapter
->dev
,
1557 "Unknown GET_HW_SPEC TLV type: %#x\n",
1558 le16_to_cpu(tlv
->type
));
1561 parsed_len
+= le16_to_cpu(tlv
->len
) +
1562 sizeof(struct mwifiex_ie_types_header
);
1563 left_len
-= parsed_len
;
1567 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: fw_release_number- %#x\n",
1568 adapter
->fw_release_number
);
1569 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: permanent addr: %pM\n",
1570 hw_spec
->permanent_addr
);
1571 dev_dbg(adapter
->dev
,
1572 "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
1573 le16_to_cpu(hw_spec
->hw_if_version
),
1574 le16_to_cpu(hw_spec
->version
));
1576 if (priv
->curr_addr
[0] == 0xff)
1577 memmove(priv
->curr_addr
, hw_spec
->permanent_addr
, ETH_ALEN
);
1579 adapter
->region_code
= le16_to_cpu(hw_spec
->region_code
);
1581 for (i
= 0; i
< MWIFIEX_MAX_REGION_CODE
; i
++)
1582 /* Use the region code to search for the index */
1583 if (adapter
->region_code
== region_code_index
[i
])
1586 /* If it's unidentified region code, use the default (USA) */
1587 if (i
>= MWIFIEX_MAX_REGION_CODE
) {
1588 adapter
->region_code
= 0x10;
1589 dev_dbg(adapter
->dev
,
1590 "cmd: unknown region code, use default (USA)\n");
1593 adapter
->hw_dot_11n_dev_cap
= le32_to_cpu(hw_spec
->dot_11n_dev_cap
);
1594 adapter
->hw_dev_mcs_support
= hw_spec
->dev_mcs_support
;
1596 if (adapter
->if_ops
.update_mp_end_port
)
1597 adapter
->if_ops
.update_mp_end_port(adapter
,
1598 le16_to_cpu(hw_spec
->mp_end_port
));