2 * Marvell Wireless LAN device driver: commands and events
4 * Copyright (C) 2011, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
29 * This function initializes a command node.
31 * The actual allocation of the node is not done by this function. It only
32 * initiates a node by filling it with default parameters. Similarly,
33 * allocation of the different buffers used (IOCTL buffer, data buffer) are
34 * not done by this function either.
37 mwifiex_init_cmd_node(struct mwifiex_private
*priv
,
38 struct cmd_ctrl_node
*cmd_node
,
39 u32 cmd_oid
, void *data_buf
)
41 cmd_node
->priv
= priv
;
42 cmd_node
->cmd_oid
= cmd_oid
;
43 if (priv
->adapter
->cmd_wait_q_required
) {
44 cmd_node
->wait_q_enabled
= priv
->adapter
->cmd_wait_q_required
;
45 priv
->adapter
->cmd_wait_q_required
= false;
46 cmd_node
->cmd_wait_q_woken
= false;
47 cmd_node
->condition
= &cmd_node
->cmd_wait_q_woken
;
49 cmd_node
->data_buf
= data_buf
;
50 cmd_node
->cmd_skb
= cmd_node
->skb
;
54 * This function returns a command node from the free queue depending upon
57 static struct cmd_ctrl_node
*
58 mwifiex_get_cmd_node(struct mwifiex_adapter
*adapter
)
60 struct cmd_ctrl_node
*cmd_node
;
63 spin_lock_irqsave(&adapter
->cmd_free_q_lock
, flags
);
64 if (list_empty(&adapter
->cmd_free_q
)) {
65 dev_err(adapter
->dev
, "GET_CMD_NODE: cmd node not available\n");
66 spin_unlock_irqrestore(&adapter
->cmd_free_q_lock
, flags
);
69 cmd_node
= list_first_entry(&adapter
->cmd_free_q
,
70 struct cmd_ctrl_node
, list
);
71 list_del(&cmd_node
->list
);
72 spin_unlock_irqrestore(&adapter
->cmd_free_q_lock
, flags
);
78 * This function cleans up a command node.
80 * The function resets the fields including the buffer pointers.
81 * This function does not try to free the buffers. They must be
82 * freed before calling this function.
84 * This function will however call the receive completion callback
85 * in case a response buffer is still available before resetting
89 mwifiex_clean_cmd_node(struct mwifiex_adapter
*adapter
,
90 struct cmd_ctrl_node
*cmd_node
)
92 cmd_node
->cmd_oid
= 0;
93 cmd_node
->cmd_flag
= 0;
94 cmd_node
->data_buf
= NULL
;
95 cmd_node
->wait_q_enabled
= false;
97 if (cmd_node
->cmd_skb
)
98 skb_trim(cmd_node
->cmd_skb
, 0);
100 if (cmd_node
->resp_skb
) {
101 adapter
->if_ops
.cmdrsp_complete(adapter
, cmd_node
->resp_skb
);
102 cmd_node
->resp_skb
= NULL
;
107 * This function sends a host command to the firmware.
109 * The function copies the host command into the driver command
110 * buffer, which will be transferred to the firmware later by the
113 static int mwifiex_cmd_host_cmd(struct mwifiex_private
*priv
,
114 struct host_cmd_ds_command
*cmd
,
115 struct mwifiex_ds_misc_cmd
*pcmd_ptr
)
117 /* Copy the HOST command to command buffer */
118 memcpy(cmd
, pcmd_ptr
->cmd
, pcmd_ptr
->len
);
119 dev_dbg(priv
->adapter
->dev
, "cmd: host cmd size = %d\n", pcmd_ptr
->len
);
124 * This function downloads a command to the firmware.
126 * The function performs sanity tests, sets the command sequence
127 * number and size, converts the header fields to CPU format before
128 * sending. Afterwards, it logs the command ID and action for debugging
129 * and sets up the command timeout timer.
131 static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private
*priv
,
132 struct cmd_ctrl_node
*cmd_node
)
135 struct mwifiex_adapter
*adapter
= priv
->adapter
;
137 struct host_cmd_ds_command
*host_cmd
;
140 struct timeval tstamp
;
144 if (!adapter
|| !cmd_node
)
147 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
150 if (host_cmd
== NULL
|| host_cmd
->size
== 0) {
151 dev_err(adapter
->dev
, "DNLD_CMD: host_cmd is null"
152 " or cmd size is 0, not sending\n");
153 if (cmd_node
->wait_q_enabled
)
154 adapter
->cmd_wait_q
.status
= -1;
155 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
159 /* Set command sequence number */
161 host_cmd
->seq_num
= cpu_to_le16(HostCmd_SET_SEQ_NO_BSS_INFO
163 cmd_node
->priv
->bss_num
,
164 cmd_node
->priv
->bss_type
));
166 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
167 adapter
->curr_cmd
= cmd_node
;
168 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
170 cmd_code
= le16_to_cpu(host_cmd
->command
);
171 cmd_size
= le16_to_cpu(host_cmd
->size
);
173 skb_trim(cmd_node
->cmd_skb
, cmd_size
);
175 do_gettimeofday(&tstamp
);
176 dev_dbg(adapter
->dev
, "cmd: DNLD_CMD: (%lu.%lu): %#x, act %#x, len %d,"
178 tstamp
.tv_sec
, tstamp
.tv_usec
, cmd_code
,
179 le16_to_cpu(*(__le16
*) ((u8
*) host_cmd
+ S_DS_GEN
)), cmd_size
,
180 le16_to_cpu(host_cmd
->seq_num
));
182 if (adapter
->iface_type
== MWIFIEX_USB
) {
183 tmp
= cpu_to_le32(MWIFIEX_USB_TYPE_CMD
);
184 skb_push(cmd_node
->cmd_skb
, MWIFIEX_TYPE_LEN
);
185 memcpy(cmd_node
->cmd_skb
->data
, &tmp
, MWIFIEX_TYPE_LEN
);
186 adapter
->cmd_sent
= true;
187 ret
= adapter
->if_ops
.host_to_card(adapter
,
188 MWIFIEX_USB_EP_CMD_EVENT
,
189 cmd_node
->cmd_skb
, NULL
);
190 skb_pull(cmd_node
->cmd_skb
, MWIFIEX_TYPE_LEN
);
192 cmd_node
->cmd_skb
= NULL
;
194 skb_push(cmd_node
->cmd_skb
, INTF_HEADER_LEN
);
195 ret
= adapter
->if_ops
.host_to_card(adapter
, MWIFIEX_TYPE_CMD
,
196 cmd_node
->cmd_skb
, NULL
);
197 skb_pull(cmd_node
->cmd_skb
, INTF_HEADER_LEN
);
201 dev_err(adapter
->dev
, "DNLD_CMD: host to card failed\n");
202 if (adapter
->iface_type
== MWIFIEX_USB
)
203 adapter
->cmd_sent
= false;
204 if (cmd_node
->wait_q_enabled
)
205 adapter
->cmd_wait_q
.status
= -1;
206 mwifiex_insert_cmd_to_free_q(adapter
, adapter
->curr_cmd
);
208 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
209 adapter
->curr_cmd
= NULL
;
210 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
212 adapter
->dbg
.num_cmd_host_to_card_failure
++;
216 /* Save the last command id and action to debug log */
217 adapter
->dbg
.last_cmd_index
=
218 (adapter
->dbg
.last_cmd_index
+ 1) % DBG_CMD_NUM
;
219 adapter
->dbg
.last_cmd_id
[adapter
->dbg
.last_cmd_index
] = cmd_code
;
220 adapter
->dbg
.last_cmd_act
[adapter
->dbg
.last_cmd_index
] =
221 le16_to_cpu(*(__le16
*) ((u8
*) host_cmd
+ S_DS_GEN
));
223 /* Clear BSS_NO_BITS from HostCmd */
224 cmd_code
&= HostCmd_CMD_ID_MASK
;
226 /* Setup the timer after transmit command */
227 mod_timer(&adapter
->cmd_timer
,
228 jiffies
+ (MWIFIEX_TIMER_10S
* HZ
) / 1000);
234 * This function downloads a sleep confirm command to the firmware.
236 * The function performs sanity tests, sets the command sequence
237 * number and size, converts the header fields to CPU format before
240 * No responses are needed for sleep confirm command.
242 static int mwifiex_dnld_sleep_confirm_cmd(struct mwifiex_adapter
*adapter
)
245 struct mwifiex_private
*priv
;
246 struct mwifiex_opt_sleep_confirm
*sleep_cfm_buf
=
247 (struct mwifiex_opt_sleep_confirm
*)
248 adapter
->sleep_cfm
->data
;
249 struct sk_buff
*sleep_cfm_tmp
;
252 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
254 sleep_cfm_buf
->seq_num
=
255 cpu_to_le16((HostCmd_SET_SEQ_NO_BSS_INFO
256 (adapter
->seq_num
, priv
->bss_num
,
260 if (adapter
->iface_type
== MWIFIEX_USB
) {
262 dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm
)
264 skb_put(sleep_cfm_tmp
, sizeof(struct mwifiex_opt_sleep_confirm
)
266 tmp
= cpu_to_le32(MWIFIEX_USB_TYPE_CMD
);
267 memcpy(sleep_cfm_tmp
->data
, &tmp
, MWIFIEX_TYPE_LEN
);
268 memcpy(sleep_cfm_tmp
->data
+ MWIFIEX_TYPE_LEN
,
269 adapter
->sleep_cfm
->data
,
270 sizeof(struct mwifiex_opt_sleep_confirm
));
271 ret
= adapter
->if_ops
.host_to_card(adapter
,
272 MWIFIEX_USB_EP_CMD_EVENT
,
273 sleep_cfm_tmp
, NULL
);
275 dev_kfree_skb_any(sleep_cfm_tmp
);
277 skb_push(adapter
->sleep_cfm
, INTF_HEADER_LEN
);
278 ret
= adapter
->if_ops
.host_to_card(adapter
, MWIFIEX_TYPE_CMD
,
279 adapter
->sleep_cfm
, NULL
);
280 skb_pull(adapter
->sleep_cfm
, INTF_HEADER_LEN
);
284 dev_err(adapter
->dev
, "SLEEP_CFM: failed\n");
285 adapter
->dbg
.num_cmd_sleep_cfm_host_to_card_failure
++;
288 if (GET_BSS_ROLE(mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
))
289 == MWIFIEX_BSS_ROLE_STA
) {
290 if (!sleep_cfm_buf
->resp_ctrl
)
291 /* Response is not needed for sleep
293 adapter
->ps_state
= PS_STATE_SLEEP
;
295 adapter
->ps_state
= PS_STATE_SLEEP_CFM
;
297 if (!sleep_cfm_buf
->resp_ctrl
&&
298 (adapter
->is_hs_configured
&&
299 !adapter
->sleep_period
.period
)) {
300 adapter
->pm_wakeup_card_req
= true;
301 mwifiex_hs_activated_event(mwifiex_get_priv
302 (adapter
, MWIFIEX_BSS_ROLE_STA
), true);
310 * This function allocates the command buffers and links them to
311 * the command free queue.
313 * The driver uses a pre allocated number of command buffers, which
314 * are created at driver initializations and freed at driver cleanup.
315 * Every command needs to obtain a command buffer from this pool before
316 * it can be issued. The command free queue lists the command buffers
317 * currently free to use, while the command pending queue lists the
318 * command buffers already in use and awaiting handling. Command buffers
319 * are returned to the free queue after use.
321 int mwifiex_alloc_cmd_buffer(struct mwifiex_adapter
*adapter
)
323 struct cmd_ctrl_node
*cmd_array
;
327 /* Allocate and initialize struct cmd_ctrl_node */
328 buf_size
= sizeof(struct cmd_ctrl_node
) * MWIFIEX_NUM_OF_CMD_BUFFER
;
329 cmd_array
= kzalloc(buf_size
, GFP_KERNEL
);
331 dev_err(adapter
->dev
, "%s: failed to alloc cmd_array\n",
336 adapter
->cmd_pool
= cmd_array
;
337 memset(adapter
->cmd_pool
, 0, buf_size
);
339 /* Allocate and initialize command buffers */
340 for (i
= 0; i
< MWIFIEX_NUM_OF_CMD_BUFFER
; i
++) {
341 cmd_array
[i
].skb
= dev_alloc_skb(MWIFIEX_SIZE_OF_CMD_BUFFER
);
342 if (!cmd_array
[i
].skb
) {
343 dev_err(adapter
->dev
, "ALLOC_CMD_BUF: out of memory\n");
348 for (i
= 0; i
< MWIFIEX_NUM_OF_CMD_BUFFER
; i
++)
349 mwifiex_insert_cmd_to_free_q(adapter
, &cmd_array
[i
]);
355 * This function frees the command buffers.
357 * The function calls the completion callback for all the command
358 * buffers that still have response buffers associated with them.
360 int mwifiex_free_cmd_buffer(struct mwifiex_adapter
*adapter
)
362 struct cmd_ctrl_node
*cmd_array
;
365 /* Need to check if cmd pool is allocated or not */
366 if (!adapter
->cmd_pool
) {
367 dev_dbg(adapter
->dev
, "info: FREE_CMD_BUF: cmd_pool is null\n");
371 cmd_array
= adapter
->cmd_pool
;
373 /* Release shared memory buffers */
374 for (i
= 0; i
< MWIFIEX_NUM_OF_CMD_BUFFER
; i
++) {
375 if (cmd_array
[i
].skb
) {
376 dev_dbg(adapter
->dev
, "cmd: free cmd buffer %d\n", i
);
377 dev_kfree_skb_any(cmd_array
[i
].skb
);
379 if (!cmd_array
[i
].resp_skb
)
382 if (adapter
->iface_type
== MWIFIEX_USB
)
383 adapter
->if_ops
.cmdrsp_complete(adapter
,
384 cmd_array
[i
].resp_skb
);
386 dev_kfree_skb_any(cmd_array
[i
].resp_skb
);
388 /* Release struct cmd_ctrl_node */
389 if (adapter
->cmd_pool
) {
390 dev_dbg(adapter
->dev
, "cmd: free cmd pool\n");
391 kfree(adapter
->cmd_pool
);
392 adapter
->cmd_pool
= NULL
;
399 * This function handles events generated by firmware.
401 * Event body of events received from firmware are not used (though they are
402 * saved), only the event ID is used. Some events are re-invoked by
403 * the driver, with a new event body.
405 * After processing, the function calls the completion callback
408 int mwifiex_process_event(struct mwifiex_adapter
*adapter
)
411 struct mwifiex_private
*priv
=
412 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
413 struct sk_buff
*skb
= adapter
->event_skb
;
414 u32 eventcause
= adapter
->event_cause
;
415 struct timeval tstamp
;
416 struct mwifiex_rxinfo
*rx_info
;
418 /* Save the last event to debug log */
419 adapter
->dbg
.last_event_index
=
420 (adapter
->dbg
.last_event_index
+ 1) % DBG_CMD_NUM
;
421 adapter
->dbg
.last_event
[adapter
->dbg
.last_event_index
] =
424 /* Get BSS number and corresponding priv */
425 priv
= mwifiex_get_priv_by_id(adapter
, EVENT_GET_BSS_NUM(eventcause
),
426 EVENT_GET_BSS_TYPE(eventcause
));
428 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
429 /* Clear BSS_NO_BITS from event */
430 eventcause
&= EVENT_ID_MASK
;
431 adapter
->event_cause
= eventcause
;
434 rx_info
= MWIFIEX_SKB_RXCB(skb
);
435 rx_info
->bss_num
= priv
->bss_num
;
436 rx_info
->bss_type
= priv
->bss_type
;
439 if (eventcause
!= EVENT_PS_SLEEP
&& eventcause
!= EVENT_PS_AWAKE
) {
440 do_gettimeofday(&tstamp
);
441 dev_dbg(adapter
->dev
, "event: %lu.%lu: cause: %#x\n",
442 tstamp
.tv_sec
, tstamp
.tv_usec
, eventcause
);
444 /* Handle PS_SLEEP/AWAKE events on STA */
445 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_STA
);
447 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
450 ret
= mwifiex_process_sta_event(priv
);
452 adapter
->event_cause
= 0;
453 adapter
->event_skb
= NULL
;
454 adapter
->if_ops
.event_complete(adapter
, skb
);
460 * This function is used to send synchronous command to the firmware.
462 * it allocates a wait queue for the command and wait for the command
465 int mwifiex_send_cmd_sync(struct mwifiex_private
*priv
, uint16_t cmd_no
,
466 u16 cmd_action
, u32 cmd_oid
, void *data_buf
)
469 struct mwifiex_adapter
*adapter
= priv
->adapter
;
471 adapter
->cmd_wait_q_required
= true;
473 ret
= mwifiex_send_cmd_async(priv
, cmd_no
, cmd_action
, cmd_oid
,
476 ret
= mwifiex_wait_queue_complete(adapter
);
483 * This function prepares a command and asynchronously send it to the firmware.
485 * Preparation includes -
486 * - Sanity tests to make sure the card is still present or the FW
488 * - Getting a new command node from the command free queue
489 * - Initializing the command node for default parameters
490 * - Fill up the non-default parameters and buffer pointers
491 * - Add the command to pending queue
493 int mwifiex_send_cmd_async(struct mwifiex_private
*priv
, uint16_t cmd_no
,
494 u16 cmd_action
, u32 cmd_oid
, void *data_buf
)
497 struct mwifiex_adapter
*adapter
= priv
->adapter
;
498 struct cmd_ctrl_node
*cmd_node
;
499 struct host_cmd_ds_command
*cmd_ptr
;
502 pr_err("PREP_CMD: adapter is NULL\n");
506 if (adapter
->is_suspended
) {
507 dev_err(adapter
->dev
, "PREP_CMD: device in suspended state\n");
511 if (adapter
->surprise_removed
) {
512 dev_err(adapter
->dev
, "PREP_CMD: card is removed\n");
516 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_RESET
) {
517 if (cmd_no
!= HostCmd_CMD_FUNC_INIT
) {
518 dev_err(adapter
->dev
, "PREP_CMD: FW in reset state\n");
523 /* Get a new command node */
524 cmd_node
= mwifiex_get_cmd_node(adapter
);
527 dev_err(adapter
->dev
, "PREP_CMD: no free cmd node\n");
531 /* Initialize the command node */
532 mwifiex_init_cmd_node(priv
, cmd_node
, cmd_oid
, data_buf
);
534 if (!cmd_node
->cmd_skb
) {
535 dev_err(adapter
->dev
, "PREP_CMD: no free cmd buf\n");
539 memset(skb_put(cmd_node
->cmd_skb
, sizeof(struct host_cmd_ds_command
)),
540 0, sizeof(struct host_cmd_ds_command
));
542 cmd_ptr
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
543 cmd_ptr
->command
= cpu_to_le16(cmd_no
);
546 /* Prepare command */
549 case HostCmd_CMD_UAP_SYS_CONFIG
:
550 case HostCmd_CMD_UAP_BSS_START
:
551 case HostCmd_CMD_UAP_BSS_STOP
:
552 ret
= mwifiex_uap_prepare_cmd(priv
, cmd_no
, cmd_action
,
557 ret
= mwifiex_sta_prepare_cmd(priv
, cmd_no
, cmd_action
,
563 ret
= mwifiex_cmd_host_cmd(priv
, cmd_ptr
, data_buf
);
564 cmd_node
->cmd_flag
|= CMD_F_HOSTCMD
;
567 /* Return error, since the command preparation failed */
569 dev_err(adapter
->dev
, "PREP_CMD: cmd %#x preparation failed\n",
571 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
576 if (cmd_no
== HostCmd_CMD_802_11_SCAN
) {
577 mwifiex_queue_scan_cmd(priv
, cmd_node
);
579 adapter
->cmd_queued
= cmd_node
;
580 mwifiex_insert_cmd_to_pending_q(adapter
, cmd_node
, true);
581 queue_work(adapter
->workqueue
, &adapter
->main_work
);
588 * This function returns a command to the command free queue.
590 * The function also calls the completion callback if required, before
591 * cleaning the command node and re-inserting it into the free queue.
594 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter
*adapter
,
595 struct cmd_ctrl_node
*cmd_node
)
602 if (cmd_node
->wait_q_enabled
)
603 mwifiex_complete_cmd(adapter
, cmd_node
);
605 mwifiex_clean_cmd_node(adapter
, cmd_node
);
607 /* Insert node into cmd_free_q */
608 spin_lock_irqsave(&adapter
->cmd_free_q_lock
, flags
);
609 list_add_tail(&cmd_node
->list
, &adapter
->cmd_free_q
);
610 spin_unlock_irqrestore(&adapter
->cmd_free_q_lock
, flags
);
614 * This function queues a command to the command pending queue.
616 * This in effect adds the command to the command list to be executed.
617 * Exit PS command is handled specially, by placing it always to the
618 * front of the command queue.
621 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter
*adapter
,
622 struct cmd_ctrl_node
*cmd_node
, u32 add_tail
)
624 struct host_cmd_ds_command
*host_cmd
= NULL
;
628 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
630 dev_err(adapter
->dev
, "QUEUE_CMD: host_cmd is NULL\n");
634 command
= le16_to_cpu(host_cmd
->command
);
636 /* Exit_PS command needs to be queued in the header always. */
637 if (command
== HostCmd_CMD_802_11_PS_MODE_ENH
) {
638 struct host_cmd_ds_802_11_ps_mode_enh
*pm
=
639 &host_cmd
->params
.psmode_enh
;
640 if ((le16_to_cpu(pm
->action
) == DIS_PS
) ||
641 (le16_to_cpu(pm
->action
) == DIS_AUTO_PS
)) {
642 if (adapter
->ps_state
!= PS_STATE_AWAKE
)
647 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
649 list_add_tail(&cmd_node
->list
, &adapter
->cmd_pending_q
);
651 list_add(&cmd_node
->list
, &adapter
->cmd_pending_q
);
652 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
654 dev_dbg(adapter
->dev
, "cmd: QUEUE_CMD: cmd=%#x is queued\n", command
);
658 * This function executes the next command in command pending queue.
660 * This function will fail if a command is already in processing stage,
661 * otherwise it will dequeue the first command from the command pending
662 * queue and send to the firmware.
664 * If the device is currently in host sleep mode, any commands, except the
665 * host sleep configuration command will de-activate the host sleep. For PS
666 * mode, the function will put the firmware back to sleep if applicable.
668 int mwifiex_exec_next_cmd(struct mwifiex_adapter
*adapter
)
670 struct mwifiex_private
*priv
;
671 struct cmd_ctrl_node
*cmd_node
;
673 struct host_cmd_ds_command
*host_cmd
;
674 unsigned long cmd_flags
;
675 unsigned long cmd_pending_q_flags
;
677 /* Check if already in processing */
678 if (adapter
->curr_cmd
) {
679 dev_err(adapter
->dev
, "EXEC_NEXT_CMD: cmd in processing\n");
683 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
684 /* Check if any command is pending */
685 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
686 if (list_empty(&adapter
->cmd_pending_q
)) {
687 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
688 cmd_pending_q_flags
);
689 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
692 cmd_node
= list_first_entry(&adapter
->cmd_pending_q
,
693 struct cmd_ctrl_node
, list
);
694 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
695 cmd_pending_q_flags
);
697 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
698 priv
= cmd_node
->priv
;
700 if (adapter
->ps_state
!= PS_STATE_AWAKE
) {
701 dev_err(adapter
->dev
, "%s: cannot send cmd in sleep state,"
702 " this should not happen\n", __func__
);
703 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
707 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
708 list_del(&cmd_node
->list
);
709 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
710 cmd_pending_q_flags
);
712 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
713 ret
= mwifiex_dnld_cmd_to_fw(priv
, cmd_node
);
714 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
715 /* Any command sent to the firmware when host is in sleep
716 * mode should de-configure host sleep. We should skip the
717 * host sleep configuration command itself though
719 if (priv
&& (host_cmd
->command
!=
720 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH
))) {
721 if (adapter
->hs_activated
) {
722 adapter
->is_hs_configured
= false;
723 mwifiex_hs_activated_event(priv
, false);
731 * This function handles the command response.
733 * After processing, the function cleans the command node and puts
734 * it back to the command free queue.
736 int mwifiex_process_cmdresp(struct mwifiex_adapter
*adapter
)
738 struct host_cmd_ds_command
*resp
;
739 struct mwifiex_private
*priv
=
740 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
742 uint16_t orig_cmdresp_no
;
744 uint16_t cmdresp_result
;
745 struct timeval tstamp
;
748 /* Now we got response from FW, cancel the command timer */
749 del_timer(&adapter
->cmd_timer
);
751 if (!adapter
->curr_cmd
|| !adapter
->curr_cmd
->resp_skb
) {
752 resp
= (struct host_cmd_ds_command
*) adapter
->upld_buf
;
753 dev_err(adapter
->dev
, "CMD_RESP: NULL curr_cmd, %#x\n",
754 le16_to_cpu(resp
->command
));
758 adapter
->num_cmd_timeout
= 0;
760 resp
= (struct host_cmd_ds_command
*) adapter
->curr_cmd
->resp_skb
->data
;
761 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_CANCELED
) {
762 dev_err(adapter
->dev
, "CMD_RESP: %#x been canceled\n",
763 le16_to_cpu(resp
->command
));
764 mwifiex_insert_cmd_to_free_q(adapter
, adapter
->curr_cmd
);
765 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
766 adapter
->curr_cmd
= NULL
;
767 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
771 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
772 /* Copy original response back to response buffer */
773 struct mwifiex_ds_misc_cmd
*hostcmd
;
774 uint16_t size
= le16_to_cpu(resp
->size
);
775 dev_dbg(adapter
->dev
, "info: host cmd resp size = %d\n", size
);
776 size
= min_t(u16
, size
, MWIFIEX_SIZE_OF_CMD_BUFFER
);
777 if (adapter
->curr_cmd
->data_buf
) {
778 hostcmd
= adapter
->curr_cmd
->data_buf
;
780 memcpy(hostcmd
->cmd
, resp
, size
);
783 orig_cmdresp_no
= le16_to_cpu(resp
->command
);
785 /* Get BSS number and corresponding priv */
786 priv
= mwifiex_get_priv_by_id(adapter
,
787 HostCmd_GET_BSS_NO(le16_to_cpu(resp
->seq_num
)),
788 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp
->seq_num
)));
790 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
791 /* Clear RET_BIT from HostCmd */
792 resp
->command
= cpu_to_le16(orig_cmdresp_no
& HostCmd_CMD_ID_MASK
);
794 cmdresp_no
= le16_to_cpu(resp
->command
);
795 cmdresp_result
= le16_to_cpu(resp
->result
);
797 /* Save the last command response to debug log */
798 adapter
->dbg
.last_cmd_resp_index
=
799 (adapter
->dbg
.last_cmd_resp_index
+ 1) % DBG_CMD_NUM
;
800 adapter
->dbg
.last_cmd_resp_id
[adapter
->dbg
.last_cmd_resp_index
] =
803 do_gettimeofday(&tstamp
);
804 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
805 " len %d, seqno 0x%x\n",
806 tstamp
.tv_sec
, tstamp
.tv_usec
, orig_cmdresp_no
, cmdresp_result
,
807 le16_to_cpu(resp
->size
), le16_to_cpu(resp
->seq_num
));
809 if (!(orig_cmdresp_no
& HostCmd_RET_BIT
)) {
810 dev_err(adapter
->dev
, "CMD_RESP: invalid cmd resp\n");
811 if (adapter
->curr_cmd
->wait_q_enabled
)
812 adapter
->cmd_wait_q
.status
= -1;
814 mwifiex_insert_cmd_to_free_q(adapter
, adapter
->curr_cmd
);
815 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
816 adapter
->curr_cmd
= NULL
;
817 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
821 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
822 adapter
->curr_cmd
->cmd_flag
&= ~CMD_F_HOSTCMD
;
823 if ((cmdresp_result
== HostCmd_RESULT_OK
) &&
824 (cmdresp_no
== HostCmd_CMD_802_11_HS_CFG_ENH
))
825 ret
= mwifiex_ret_802_11_hs_cfg(priv
, resp
);
827 /* handle response */
828 ret
= mwifiex_process_sta_cmdresp(priv
, cmdresp_no
, resp
);
831 /* Check init command response */
832 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
) {
834 dev_err(adapter
->dev
, "%s: cmd %#x failed during "
835 "initialization\n", __func__
, cmdresp_no
);
836 mwifiex_init_fw_complete(adapter
);
838 } else if (adapter
->last_init_cmd
== cmdresp_no
)
839 adapter
->hw_status
= MWIFIEX_HW_STATUS_INIT_DONE
;
842 if (adapter
->curr_cmd
) {
843 if (adapter
->curr_cmd
->wait_q_enabled
)
844 adapter
->cmd_wait_q
.status
= ret
;
846 /* Clean up and put current command back to cmd_free_q */
847 mwifiex_insert_cmd_to_free_q(adapter
, adapter
->curr_cmd
);
849 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
850 adapter
->curr_cmd
= NULL
;
851 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
858 * This function handles the timeout of command sending.
860 * It will re-send the same command again.
863 mwifiex_cmd_timeout_func(unsigned long function_context
)
865 struct mwifiex_adapter
*adapter
=
866 (struct mwifiex_adapter
*) function_context
;
867 struct cmd_ctrl_node
*cmd_node
;
868 struct timeval tstamp
;
870 adapter
->num_cmd_timeout
++;
871 adapter
->dbg
.num_cmd_timeout
++;
872 if (!adapter
->curr_cmd
) {
873 dev_dbg(adapter
->dev
, "cmd: empty curr_cmd\n");
876 cmd_node
= adapter
->curr_cmd
;
877 if (cmd_node
->wait_q_enabled
)
878 adapter
->cmd_wait_q
.status
= -ETIMEDOUT
;
881 adapter
->dbg
.timeout_cmd_id
=
882 adapter
->dbg
.last_cmd_id
[adapter
->dbg
.last_cmd_index
];
883 adapter
->dbg
.timeout_cmd_act
=
884 adapter
->dbg
.last_cmd_act
[adapter
->dbg
.last_cmd_index
];
885 do_gettimeofday(&tstamp
);
886 dev_err(adapter
->dev
,
887 "%s: Timeout cmd id (%lu.%lu) = %#x, act = %#x\n",
888 __func__
, tstamp
.tv_sec
, tstamp
.tv_usec
,
889 adapter
->dbg
.timeout_cmd_id
,
890 adapter
->dbg
.timeout_cmd_act
);
892 dev_err(adapter
->dev
, "num_data_h2c_failure = %d\n",
893 adapter
->dbg
.num_tx_host_to_card_failure
);
894 dev_err(adapter
->dev
, "num_cmd_h2c_failure = %d\n",
895 adapter
->dbg
.num_cmd_host_to_card_failure
);
897 dev_err(adapter
->dev
, "num_cmd_timeout = %d\n",
898 adapter
->dbg
.num_cmd_timeout
);
899 dev_err(adapter
->dev
, "num_tx_timeout = %d\n",
900 adapter
->dbg
.num_tx_timeout
);
902 dev_err(adapter
->dev
, "last_cmd_index = %d\n",
903 adapter
->dbg
.last_cmd_index
);
904 print_hex_dump_bytes("last_cmd_id: ", DUMP_PREFIX_OFFSET
,
905 adapter
->dbg
.last_cmd_id
, DBG_CMD_NUM
);
906 print_hex_dump_bytes("last_cmd_act: ", DUMP_PREFIX_OFFSET
,
907 adapter
->dbg
.last_cmd_act
, DBG_CMD_NUM
);
909 dev_err(adapter
->dev
, "last_cmd_resp_index = %d\n",
910 adapter
->dbg
.last_cmd_resp_index
);
911 print_hex_dump_bytes("last_cmd_resp_id: ", DUMP_PREFIX_OFFSET
,
912 adapter
->dbg
.last_cmd_resp_id
,
915 dev_err(adapter
->dev
, "last_event_index = %d\n",
916 adapter
->dbg
.last_event_index
);
917 print_hex_dump_bytes("last_event: ", DUMP_PREFIX_OFFSET
,
918 adapter
->dbg
.last_event
, DBG_CMD_NUM
);
920 dev_err(adapter
->dev
, "data_sent=%d cmd_sent=%d\n",
921 adapter
->data_sent
, adapter
->cmd_sent
);
923 dev_err(adapter
->dev
, "ps_mode=%d ps_state=%d\n",
924 adapter
->ps_mode
, adapter
->ps_state
);
926 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
)
927 mwifiex_init_fw_complete(adapter
);
931 * This function cancels all the pending commands.
933 * The current command, all commands in command pending queue and all scan
934 * commands in scan pending queue are cancelled. All the completion callbacks
935 * are called with failure status to ensure cleanup.
938 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter
*adapter
)
940 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
;
943 /* Cancel current cmd */
944 if ((adapter
->curr_cmd
) && (adapter
->curr_cmd
->wait_q_enabled
)) {
945 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
946 adapter
->curr_cmd
->wait_q_enabled
= false;
947 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
948 adapter
->cmd_wait_q
.status
= -1;
949 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
951 /* Cancel all pending command */
952 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
953 list_for_each_entry_safe(cmd_node
, tmp_node
,
954 &adapter
->cmd_pending_q
, list
) {
955 list_del(&cmd_node
->list
);
956 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
958 if (cmd_node
->wait_q_enabled
) {
959 adapter
->cmd_wait_q
.status
= -1;
960 mwifiex_complete_cmd(adapter
, cmd_node
);
961 cmd_node
->wait_q_enabled
= false;
963 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
964 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
966 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
968 /* Cancel all pending scan command */
969 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
970 list_for_each_entry_safe(cmd_node
, tmp_node
,
971 &adapter
->scan_pending_q
, list
) {
972 list_del(&cmd_node
->list
);
973 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
975 cmd_node
->wait_q_enabled
= false;
976 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
977 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
979 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
981 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
982 adapter
->scan_processing
= false;
983 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
987 * This function cancels all pending commands that matches with
988 * the given IOCTL request.
990 * Both the current command buffer and the pending command queue are
991 * searched for matching IOCTL request. The completion callback of
992 * the matched command is called with failure status to ensure cleanup.
993 * In case of scan commands, all pending commands in scan pending queue
997 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter
*adapter
)
999 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
= NULL
;
1000 unsigned long cmd_flags
;
1001 unsigned long scan_pending_q_flags
;
1002 uint16_t cancel_scan_cmd
= false;
1004 if ((adapter
->curr_cmd
) &&
1005 (adapter
->curr_cmd
->wait_q_enabled
)) {
1006 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1007 cmd_node
= adapter
->curr_cmd
;
1008 cmd_node
->wait_q_enabled
= false;
1009 cmd_node
->cmd_flag
|= CMD_F_CANCELED
;
1010 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1011 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
1012 adapter
->curr_cmd
= NULL
;
1013 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1016 /* Cancel all pending scan command */
1017 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1018 scan_pending_q_flags
);
1019 list_for_each_entry_safe(cmd_node
, tmp_node
,
1020 &adapter
->scan_pending_q
, list
) {
1021 list_del(&cmd_node
->list
);
1022 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1023 scan_pending_q_flags
);
1024 cmd_node
->wait_q_enabled
= false;
1025 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1026 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1027 scan_pending_q_flags
);
1028 cancel_scan_cmd
= true;
1030 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1031 scan_pending_q_flags
);
1033 if (cancel_scan_cmd
) {
1034 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1035 adapter
->scan_processing
= false;
1036 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1038 adapter
->cmd_wait_q
.status
= -1;
1042 * This function sends the sleep confirm command to firmware, if
1045 * The sleep confirm command cannot be issued if command response,
1046 * data response or event response is awaiting handling, or if we
1047 * are in the middle of sending a command, or expecting a command
1051 mwifiex_check_ps_cond(struct mwifiex_adapter
*adapter
)
1053 if (!adapter
->cmd_sent
&&
1054 !adapter
->curr_cmd
&& !IS_CARD_RX_RCVD(adapter
))
1055 mwifiex_dnld_sleep_confirm_cmd(adapter
);
1057 dev_dbg(adapter
->dev
,
1058 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1059 (adapter
->cmd_sent
) ? "D" : "",
1060 (adapter
->curr_cmd
) ? "C" : "",
1061 (IS_CARD_RX_RCVD(adapter
)) ? "R" : "");
1065 * This function sends a Host Sleep activated event to applications.
1067 * This event is generated by the driver, with a blank event body.
1070 mwifiex_hs_activated_event(struct mwifiex_private
*priv
, u8 activated
)
1073 if (priv
->adapter
->is_hs_configured
) {
1074 priv
->adapter
->hs_activated
= true;
1075 dev_dbg(priv
->adapter
->dev
, "event: hs_activated\n");
1076 priv
->adapter
->hs_activate_wait_q_woken
= true;
1077 wake_up_interruptible(
1078 &priv
->adapter
->hs_activate_wait_q
);
1080 dev_dbg(priv
->adapter
->dev
, "event: HS not configured\n");
1083 dev_dbg(priv
->adapter
->dev
, "event: hs_deactivated\n");
1084 priv
->adapter
->hs_activated
= false;
1089 * This function handles the command response of a Host Sleep configuration
1092 * Handling includes changing the header fields into CPU format
1093 * and setting the current host sleep activation status in driver.
1095 * In case host sleep status change, the function generates an event to
1096 * notify the applications.
1098 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private
*priv
,
1099 struct host_cmd_ds_command
*resp
)
1101 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1102 struct host_cmd_ds_802_11_hs_cfg_enh
*phs_cfg
=
1103 &resp
->params
.opt_hs_cfg
;
1104 uint32_t conditions
= le32_to_cpu(phs_cfg
->params
.hs_config
.conditions
);
1106 if (phs_cfg
->action
== cpu_to_le16(HS_ACTIVATE
) &&
1107 adapter
->iface_type
== MWIFIEX_SDIO
) {
1108 mwifiex_hs_activated_event(priv
, true);
1111 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: HS_CFG cmd reply"
1112 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1113 resp
->result
, conditions
,
1114 phs_cfg
->params
.hs_config
.gpio
,
1115 phs_cfg
->params
.hs_config
.gap
);
1117 if (conditions
!= HOST_SLEEP_CFG_CANCEL
) {
1118 adapter
->is_hs_configured
= true;
1119 if (adapter
->iface_type
== MWIFIEX_USB
||
1120 adapter
->iface_type
== MWIFIEX_PCIE
)
1121 mwifiex_hs_activated_event(priv
, true);
1123 adapter
->is_hs_configured
= false;
1124 if (adapter
->hs_activated
)
1125 mwifiex_hs_activated_event(priv
, false);
1132 * This function wakes up the adapter and generates a Host Sleep
1133 * cancel event on receiving the power up interrupt.
1136 mwifiex_process_hs_config(struct mwifiex_adapter
*adapter
)
1138 dev_dbg(adapter
->dev
, "info: %s: auto cancelling host sleep"
1139 " since there is interrupt from the firmware\n", __func__
);
1141 adapter
->if_ops
.wakeup(adapter
);
1142 adapter
->hs_activated
= false;
1143 adapter
->is_hs_configured
= false;
1144 mwifiex_hs_activated_event(mwifiex_get_priv(adapter
,
1145 MWIFIEX_BSS_ROLE_ANY
),
1148 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config
);
1151 * This function handles the command response of a sleep confirm command.
1153 * The function sets the card state to SLEEP if the response indicates success.
1156 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter
*adapter
,
1157 u8
*pbuf
, u32 upld_len
)
1159 struct host_cmd_ds_command
*cmd
= (struct host_cmd_ds_command
*) pbuf
;
1160 struct mwifiex_private
*priv
=
1161 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1162 uint16_t result
= le16_to_cpu(cmd
->result
);
1163 uint16_t command
= le16_to_cpu(cmd
->command
);
1164 uint16_t seq_num
= le16_to_cpu(cmd
->seq_num
);
1167 dev_err(adapter
->dev
, "%s: cmd size is 0\n", __func__
);
1171 /* Get BSS number and corresponding priv */
1172 priv
= mwifiex_get_priv_by_id(adapter
, HostCmd_GET_BSS_NO(seq_num
),
1173 HostCmd_GET_BSS_TYPE(seq_num
));
1175 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1177 /* Update sequence number */
1178 seq_num
= HostCmd_GET_SEQ_NO(seq_num
);
1179 /* Clear RET_BIT from HostCmd */
1180 command
&= HostCmd_CMD_ID_MASK
;
1182 if (command
!= HostCmd_CMD_802_11_PS_MODE_ENH
) {
1183 dev_err(adapter
->dev
,
1184 "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
1185 __func__
, command
, result
);
1190 dev_err(adapter
->dev
, "%s: sleep confirm cmd failed\n",
1192 adapter
->pm_wakeup_card_req
= false;
1193 adapter
->ps_state
= PS_STATE_AWAKE
;
1196 adapter
->pm_wakeup_card_req
= true;
1197 if (adapter
->is_hs_configured
)
1198 mwifiex_hs_activated_event(mwifiex_get_priv
1199 (adapter
, MWIFIEX_BSS_ROLE_ANY
),
1201 adapter
->ps_state
= PS_STATE_SLEEP
;
1202 cmd
->command
= cpu_to_le16(command
);
1203 cmd
->seq_num
= cpu_to_le16(seq_num
);
1205 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp
);
1208 * This function prepares an enhanced power mode command.
1210 * This function can be used to disable power save or to configure
1211 * power save with auto PS or STA PS or auto deep sleep.
1213 * Preparation includes -
1214 * - Setting command ID, action and proper size
1215 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1216 * auto deep sleep TLV (as required)
1217 * - Ensuring correct endian-ness
1219 int mwifiex_cmd_enh_power_mode(struct mwifiex_private
*priv
,
1220 struct host_cmd_ds_command
*cmd
,
1221 u16 cmd_action
, uint16_t ps_bitmap
,
1222 struct mwifiex_ds_auto_ds
*auto_ds
)
1224 struct host_cmd_ds_802_11_ps_mode_enh
*psmode_enh
=
1225 &cmd
->params
.psmode_enh
;
1229 cmd
->command
= cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH
);
1230 if (cmd_action
== DIS_AUTO_PS
) {
1231 psmode_enh
->action
= cpu_to_le16(DIS_AUTO_PS
);
1232 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1233 cmd
->size
= cpu_to_le16(S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1234 sizeof(psmode_enh
->params
.ps_bitmap
));
1235 } else if (cmd_action
== GET_PS
) {
1236 psmode_enh
->action
= cpu_to_le16(GET_PS
);
1237 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1238 cmd
->size
= cpu_to_le16(S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1239 sizeof(psmode_enh
->params
.ps_bitmap
));
1240 } else if (cmd_action
== EN_AUTO_PS
) {
1241 psmode_enh
->action
= cpu_to_le16(EN_AUTO_PS
);
1242 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1243 cmd_size
= S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1244 sizeof(psmode_enh
->params
.ps_bitmap
);
1245 tlv
= (u8
*) cmd
+ cmd_size
;
1246 if (ps_bitmap
& BITMAP_STA_PS
) {
1247 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1248 struct mwifiex_ie_types_ps_param
*ps_tlv
=
1249 (struct mwifiex_ie_types_ps_param
*) tlv
;
1250 struct mwifiex_ps_param
*ps_mode
= &ps_tlv
->param
;
1251 ps_tlv
->header
.type
= cpu_to_le16(TLV_TYPE_PS_PARAM
);
1252 ps_tlv
->header
.len
= cpu_to_le16(sizeof(*ps_tlv
) -
1253 sizeof(struct mwifiex_ie_types_header
));
1254 cmd_size
+= sizeof(*ps_tlv
);
1255 tlv
+= sizeof(*ps_tlv
);
1256 dev_dbg(adapter
->dev
, "cmd: PS Command: Enter PS\n");
1257 ps_mode
->null_pkt_interval
=
1258 cpu_to_le16(adapter
->null_pkt_interval
);
1259 ps_mode
->multiple_dtims
=
1260 cpu_to_le16(adapter
->multiple_dtim
);
1261 ps_mode
->bcn_miss_timeout
=
1262 cpu_to_le16(adapter
->bcn_miss_time_out
);
1263 ps_mode
->local_listen_interval
=
1264 cpu_to_le16(adapter
->local_listen_interval
);
1265 ps_mode
->adhoc_wake_period
=
1266 cpu_to_le16(adapter
->adhoc_awake_period
);
1267 ps_mode
->delay_to_ps
=
1268 cpu_to_le16(adapter
->delay_to_ps
);
1269 ps_mode
->mode
= cpu_to_le16(adapter
->enhanced_ps_mode
);
1272 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1273 struct mwifiex_ie_types_auto_ds_param
*auto_ds_tlv
=
1274 (struct mwifiex_ie_types_auto_ds_param
*) tlv
;
1277 auto_ds_tlv
->header
.type
=
1278 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM
);
1279 auto_ds_tlv
->header
.len
=
1280 cpu_to_le16(sizeof(*auto_ds_tlv
) -
1281 sizeof(struct mwifiex_ie_types_header
));
1282 cmd_size
+= sizeof(*auto_ds_tlv
);
1283 tlv
+= sizeof(*auto_ds_tlv
);
1285 idletime
= auto_ds
->idle_time
;
1286 dev_dbg(priv
->adapter
->dev
,
1287 "cmd: PS Command: Enter Auto Deep Sleep\n");
1288 auto_ds_tlv
->deep_sleep_timeout
= cpu_to_le16(idletime
);
1290 cmd
->size
= cpu_to_le16(cmd_size
);
1296 * This function handles the command response of an enhanced power mode
1299 * Handling includes changing the header fields into CPU format
1300 * and setting the current enhanced power mode in driver.
1302 int mwifiex_ret_enh_power_mode(struct mwifiex_private
*priv
,
1303 struct host_cmd_ds_command
*resp
,
1304 struct mwifiex_ds_pm_cfg
*pm_cfg
)
1306 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1307 struct host_cmd_ds_802_11_ps_mode_enh
*ps_mode
=
1308 &resp
->params
.psmode_enh
;
1309 uint16_t action
= le16_to_cpu(ps_mode
->action
);
1310 uint16_t ps_bitmap
= le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1311 uint16_t auto_ps_bitmap
=
1312 le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1314 dev_dbg(adapter
->dev
,
1315 "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1316 __func__
, resp
->result
, action
);
1317 if (action
== EN_AUTO_PS
) {
1318 if (auto_ps_bitmap
& BITMAP_AUTO_DS
) {
1319 dev_dbg(adapter
->dev
, "cmd: Enabled auto deep sleep\n");
1320 priv
->adapter
->is_deep_sleep
= true;
1322 if (auto_ps_bitmap
& BITMAP_STA_PS
) {
1323 dev_dbg(adapter
->dev
, "cmd: Enabled STA power save\n");
1324 if (adapter
->sleep_period
.period
)
1325 dev_dbg(adapter
->dev
,
1326 "cmd: set to uapsd/pps mode\n");
1328 } else if (action
== DIS_AUTO_PS
) {
1329 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1330 priv
->adapter
->is_deep_sleep
= false;
1331 dev_dbg(adapter
->dev
, "cmd: Disabled auto deep sleep\n");
1333 if (ps_bitmap
& BITMAP_STA_PS
) {
1334 dev_dbg(adapter
->dev
, "cmd: Disabled STA power save\n");
1335 if (adapter
->sleep_period
.period
) {
1336 adapter
->delay_null_pkt
= false;
1337 adapter
->tx_lock_flag
= false;
1338 adapter
->pps_uapsd_mode
= false;
1341 } else if (action
== GET_PS
) {
1342 if (ps_bitmap
& BITMAP_STA_PS
)
1343 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_PSP
;
1345 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_CAM
;
1347 dev_dbg(adapter
->dev
, "cmd: ps_bitmap=%#x\n", ps_bitmap
);
1350 /* This section is for get power save mode */
1351 if (ps_bitmap
& BITMAP_STA_PS
)
1352 pm_cfg
->param
.ps_mode
= 1;
1354 pm_cfg
->param
.ps_mode
= 0;
1361 * This function prepares command to get hardware specifications.
1363 * Preparation includes -
1364 * - Setting command ID, action and proper size
1365 * - Setting permanent address parameter
1366 * - Ensuring correct endian-ness
1368 int mwifiex_cmd_get_hw_spec(struct mwifiex_private
*priv
,
1369 struct host_cmd_ds_command
*cmd
)
1371 struct host_cmd_ds_get_hw_spec
*hw_spec
= &cmd
->params
.hw_spec
;
1373 cmd
->command
= cpu_to_le16(HostCmd_CMD_GET_HW_SPEC
);
1375 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec
) + S_DS_GEN
);
1376 memcpy(hw_spec
->permanent_addr
, priv
->curr_addr
, ETH_ALEN
);
1382 * This function handles the command response of get hardware
1385 * Handling includes changing the header fields into CPU format
1386 * and saving/updating the following parameters in driver -
1387 * - Firmware capability information
1388 * - Firmware band settings
1389 * - Ad-hoc start band and channel
1390 * - Ad-hoc 11n activation status
1391 * - Firmware release number
1392 * - Number of antennas
1393 * - Hardware address
1394 * - Hardware interface version
1395 * - Firmware version
1397 * - 11n capabilities
1398 * - MCS support fields
1401 int mwifiex_ret_get_hw_spec(struct mwifiex_private
*priv
,
1402 struct host_cmd_ds_command
*resp
)
1404 struct host_cmd_ds_get_hw_spec
*hw_spec
= &resp
->params
.hw_spec
;
1405 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1408 adapter
->fw_cap_info
= le32_to_cpu(hw_spec
->fw_cap_info
);
1410 if (IS_SUPPORT_MULTI_BANDS(adapter
))
1411 adapter
->fw_bands
= (u8
) GET_FW_DEFAULT_BANDS(adapter
);
1413 adapter
->fw_bands
= BAND_B
;
1415 adapter
->config_bands
= adapter
->fw_bands
;
1417 if (adapter
->fw_bands
& BAND_A
) {
1418 if (adapter
->fw_bands
& BAND_GN
) {
1419 adapter
->config_bands
|= BAND_AN
;
1420 adapter
->fw_bands
|= BAND_AN
;
1422 if (adapter
->fw_bands
& BAND_AN
) {
1423 adapter
->adhoc_start_band
= BAND_A
| BAND_AN
;
1424 adapter
->adhoc_11n_enabled
= true;
1426 adapter
->adhoc_start_band
= BAND_A
;
1428 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL_A
;
1429 } else if (adapter
->fw_bands
& BAND_GN
) {
1430 adapter
->adhoc_start_band
= BAND_G
| BAND_B
| BAND_GN
;
1431 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1432 adapter
->adhoc_11n_enabled
= true;
1433 } else if (adapter
->fw_bands
& BAND_G
) {
1434 adapter
->adhoc_start_band
= BAND_G
| BAND_B
;
1435 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1436 } else if (adapter
->fw_bands
& BAND_B
) {
1437 adapter
->adhoc_start_band
= BAND_B
;
1438 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1441 adapter
->fw_release_number
= le32_to_cpu(hw_spec
->fw_release_number
);
1442 adapter
->number_of_antenna
= le16_to_cpu(hw_spec
->number_of_antenna
);
1444 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: fw_release_number- %#x\n",
1445 adapter
->fw_release_number
);
1446 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: permanent addr: %pM\n",
1447 hw_spec
->permanent_addr
);
1448 dev_dbg(adapter
->dev
,
1449 "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
1450 le16_to_cpu(hw_spec
->hw_if_version
),
1451 le16_to_cpu(hw_spec
->version
));
1453 if (priv
->curr_addr
[0] == 0xff)
1454 memmove(priv
->curr_addr
, hw_spec
->permanent_addr
, ETH_ALEN
);
1456 adapter
->region_code
= le16_to_cpu(hw_spec
->region_code
);
1458 for (i
= 0; i
< MWIFIEX_MAX_REGION_CODE
; i
++)
1459 /* Use the region code to search for the index */
1460 if (adapter
->region_code
== region_code_index
[i
])
1463 /* If it's unidentified region code, use the default (USA) */
1464 if (i
>= MWIFIEX_MAX_REGION_CODE
) {
1465 adapter
->region_code
= 0x10;
1466 dev_dbg(adapter
->dev
,
1467 "cmd: unknown region code, use default (USA)\n");
1470 adapter
->hw_dot_11n_dev_cap
= le32_to_cpu(hw_spec
->dot_11n_dev_cap
);
1471 adapter
->hw_dev_mcs_support
= hw_spec
->dev_mcs_support
;
1473 if (adapter
->if_ops
.update_mp_end_port
)
1474 adapter
->if_ops
.update_mp_end_port(adapter
,
1475 le16_to_cpu(hw_spec
->mp_end_port
));