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);
587 * This function returns a command to the command free queue.
589 * The function also calls the completion callback if required, before
590 * cleaning the command node and re-inserting it into the free queue.
593 mwifiex_insert_cmd_to_free_q(struct mwifiex_adapter
*adapter
,
594 struct cmd_ctrl_node
*cmd_node
)
601 if (cmd_node
->wait_q_enabled
)
602 mwifiex_complete_cmd(adapter
, cmd_node
);
604 mwifiex_clean_cmd_node(adapter
, cmd_node
);
606 /* Insert node into cmd_free_q */
607 spin_lock_irqsave(&adapter
->cmd_free_q_lock
, flags
);
608 list_add_tail(&cmd_node
->list
, &adapter
->cmd_free_q
);
609 spin_unlock_irqrestore(&adapter
->cmd_free_q_lock
, flags
);
613 * This function queues a command to the command pending queue.
615 * This in effect adds the command to the command list to be executed.
616 * Exit PS command is handled specially, by placing it always to the
617 * front of the command queue.
620 mwifiex_insert_cmd_to_pending_q(struct mwifiex_adapter
*adapter
,
621 struct cmd_ctrl_node
*cmd_node
, u32 add_tail
)
623 struct host_cmd_ds_command
*host_cmd
= NULL
;
627 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
629 dev_err(adapter
->dev
, "QUEUE_CMD: host_cmd is NULL\n");
633 command
= le16_to_cpu(host_cmd
->command
);
635 /* Exit_PS command needs to be queued in the header always. */
636 if (command
== HostCmd_CMD_802_11_PS_MODE_ENH
) {
637 struct host_cmd_ds_802_11_ps_mode_enh
*pm
=
638 &host_cmd
->params
.psmode_enh
;
639 if ((le16_to_cpu(pm
->action
) == DIS_PS
) ||
640 (le16_to_cpu(pm
->action
) == DIS_AUTO_PS
)) {
641 if (adapter
->ps_state
!= PS_STATE_AWAKE
)
646 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
648 list_add_tail(&cmd_node
->list
, &adapter
->cmd_pending_q
);
650 list_add(&cmd_node
->list
, &adapter
->cmd_pending_q
);
651 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
653 dev_dbg(adapter
->dev
, "cmd: QUEUE_CMD: cmd=%#x is queued\n", command
);
657 * This function executes the next command in command pending queue.
659 * This function will fail if a command is already in processing stage,
660 * otherwise it will dequeue the first command from the command pending
661 * queue and send to the firmware.
663 * If the device is currently in host sleep mode, any commands, except the
664 * host sleep configuration command will de-activate the host sleep. For PS
665 * mode, the function will put the firmware back to sleep if applicable.
667 int mwifiex_exec_next_cmd(struct mwifiex_adapter
*adapter
)
669 struct mwifiex_private
*priv
;
670 struct cmd_ctrl_node
*cmd_node
;
672 struct host_cmd_ds_command
*host_cmd
;
673 unsigned long cmd_flags
;
674 unsigned long cmd_pending_q_flags
;
676 /* Check if already in processing */
677 if (adapter
->curr_cmd
) {
678 dev_err(adapter
->dev
, "EXEC_NEXT_CMD: cmd in processing\n");
682 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
683 /* Check if any command is pending */
684 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
685 if (list_empty(&adapter
->cmd_pending_q
)) {
686 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
687 cmd_pending_q_flags
);
688 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
691 cmd_node
= list_first_entry(&adapter
->cmd_pending_q
,
692 struct cmd_ctrl_node
, list
);
693 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
694 cmd_pending_q_flags
);
696 host_cmd
= (struct host_cmd_ds_command
*) (cmd_node
->cmd_skb
->data
);
697 priv
= cmd_node
->priv
;
699 if (adapter
->ps_state
!= PS_STATE_AWAKE
) {
700 dev_err(adapter
->dev
, "%s: cannot send cmd in sleep state,"
701 " this should not happen\n", __func__
);
702 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
706 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, cmd_pending_q_flags
);
707 list_del(&cmd_node
->list
);
708 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
,
709 cmd_pending_q_flags
);
711 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
712 ret
= mwifiex_dnld_cmd_to_fw(priv
, cmd_node
);
713 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
714 /* Any command sent to the firmware when host is in sleep
715 * mode should de-configure host sleep. We should skip the
716 * host sleep configuration command itself though
718 if (priv
&& (host_cmd
->command
!=
719 cpu_to_le16(HostCmd_CMD_802_11_HS_CFG_ENH
))) {
720 if (adapter
->hs_activated
) {
721 adapter
->is_hs_configured
= false;
722 mwifiex_hs_activated_event(priv
, false);
730 * This function handles the command response.
732 * After processing, the function cleans the command node and puts
733 * it back to the command free queue.
735 int mwifiex_process_cmdresp(struct mwifiex_adapter
*adapter
)
737 struct host_cmd_ds_command
*resp
;
738 struct mwifiex_private
*priv
=
739 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
741 uint16_t orig_cmdresp_no
;
743 uint16_t cmdresp_result
;
744 struct timeval tstamp
;
747 /* Now we got response from FW, cancel the command timer */
748 del_timer(&adapter
->cmd_timer
);
750 if (!adapter
->curr_cmd
|| !adapter
->curr_cmd
->resp_skb
) {
751 resp
= (struct host_cmd_ds_command
*) adapter
->upld_buf
;
752 dev_err(adapter
->dev
, "CMD_RESP: NULL curr_cmd, %#x\n",
753 le16_to_cpu(resp
->command
));
757 adapter
->num_cmd_timeout
= 0;
759 resp
= (struct host_cmd_ds_command
*) adapter
->curr_cmd
->resp_skb
->data
;
760 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_CANCELED
) {
761 dev_err(adapter
->dev
, "CMD_RESP: %#x been canceled\n",
762 le16_to_cpu(resp
->command
));
763 mwifiex_insert_cmd_to_free_q(adapter
, adapter
->curr_cmd
);
764 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
765 adapter
->curr_cmd
= NULL
;
766 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
770 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
771 /* Copy original response back to response buffer */
772 struct mwifiex_ds_misc_cmd
*hostcmd
;
773 uint16_t size
= le16_to_cpu(resp
->size
);
774 dev_dbg(adapter
->dev
, "info: host cmd resp size = %d\n", size
);
775 size
= min_t(u16
, size
, MWIFIEX_SIZE_OF_CMD_BUFFER
);
776 if (adapter
->curr_cmd
->data_buf
) {
777 hostcmd
= adapter
->curr_cmd
->data_buf
;
779 memcpy(hostcmd
->cmd
, resp
, size
);
782 orig_cmdresp_no
= le16_to_cpu(resp
->command
);
784 /* Get BSS number and corresponding priv */
785 priv
= mwifiex_get_priv_by_id(adapter
,
786 HostCmd_GET_BSS_NO(le16_to_cpu(resp
->seq_num
)),
787 HostCmd_GET_BSS_TYPE(le16_to_cpu(resp
->seq_num
)));
789 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
790 /* Clear RET_BIT from HostCmd */
791 resp
->command
= cpu_to_le16(orig_cmdresp_no
& HostCmd_CMD_ID_MASK
);
793 cmdresp_no
= le16_to_cpu(resp
->command
);
794 cmdresp_result
= le16_to_cpu(resp
->result
);
796 /* Save the last command response to debug log */
797 adapter
->dbg
.last_cmd_resp_index
=
798 (adapter
->dbg
.last_cmd_resp_index
+ 1) % DBG_CMD_NUM
;
799 adapter
->dbg
.last_cmd_resp_id
[adapter
->dbg
.last_cmd_resp_index
] =
802 do_gettimeofday(&tstamp
);
803 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: (%lu.%lu): 0x%x, result %d,"
804 " len %d, seqno 0x%x\n",
805 tstamp
.tv_sec
, tstamp
.tv_usec
, orig_cmdresp_no
, cmdresp_result
,
806 le16_to_cpu(resp
->size
), le16_to_cpu(resp
->seq_num
));
808 if (!(orig_cmdresp_no
& HostCmd_RET_BIT
)) {
809 dev_err(adapter
->dev
, "CMD_RESP: invalid cmd resp\n");
810 if (adapter
->curr_cmd
->wait_q_enabled
)
811 adapter
->cmd_wait_q
.status
= -1;
813 mwifiex_insert_cmd_to_free_q(adapter
, adapter
->curr_cmd
);
814 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
815 adapter
->curr_cmd
= NULL
;
816 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
820 if (adapter
->curr_cmd
->cmd_flag
& CMD_F_HOSTCMD
) {
821 adapter
->curr_cmd
->cmd_flag
&= ~CMD_F_HOSTCMD
;
822 if ((cmdresp_result
== HostCmd_RESULT_OK
) &&
823 (cmdresp_no
== HostCmd_CMD_802_11_HS_CFG_ENH
))
824 ret
= mwifiex_ret_802_11_hs_cfg(priv
, resp
);
826 /* handle response */
827 ret
= mwifiex_process_sta_cmdresp(priv
, cmdresp_no
, resp
);
830 /* Check init command response */
831 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
) {
833 dev_err(adapter
->dev
, "%s: cmd %#x failed during "
834 "initialization\n", __func__
, cmdresp_no
);
835 mwifiex_init_fw_complete(adapter
);
837 } else if (adapter
->last_init_cmd
== cmdresp_no
)
838 adapter
->hw_status
= MWIFIEX_HW_STATUS_INIT_DONE
;
841 if (adapter
->curr_cmd
) {
842 if (adapter
->curr_cmd
->wait_q_enabled
)
843 adapter
->cmd_wait_q
.status
= ret
;
845 /* Clean up and put current command back to cmd_free_q */
846 mwifiex_insert_cmd_to_free_q(adapter
, adapter
->curr_cmd
);
848 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
849 adapter
->curr_cmd
= NULL
;
850 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
857 * This function handles the timeout of command sending.
859 * It will re-send the same command again.
862 mwifiex_cmd_timeout_func(unsigned long function_context
)
864 struct mwifiex_adapter
*adapter
=
865 (struct mwifiex_adapter
*) function_context
;
866 struct cmd_ctrl_node
*cmd_node
;
867 struct timeval tstamp
;
869 adapter
->num_cmd_timeout
++;
870 adapter
->dbg
.num_cmd_timeout
++;
871 if (!adapter
->curr_cmd
) {
872 dev_dbg(adapter
->dev
, "cmd: empty curr_cmd\n");
875 cmd_node
= adapter
->curr_cmd
;
876 if (cmd_node
->wait_q_enabled
)
877 adapter
->cmd_wait_q
.status
= -ETIMEDOUT
;
880 adapter
->dbg
.timeout_cmd_id
=
881 adapter
->dbg
.last_cmd_id
[adapter
->dbg
.last_cmd_index
];
882 adapter
->dbg
.timeout_cmd_act
=
883 adapter
->dbg
.last_cmd_act
[adapter
->dbg
.last_cmd_index
];
884 do_gettimeofday(&tstamp
);
885 dev_err(adapter
->dev
,
886 "%s: Timeout cmd id (%lu.%lu) = %#x, act = %#x\n",
887 __func__
, tstamp
.tv_sec
, tstamp
.tv_usec
,
888 adapter
->dbg
.timeout_cmd_id
,
889 adapter
->dbg
.timeout_cmd_act
);
891 dev_err(adapter
->dev
, "num_data_h2c_failure = %d\n",
892 adapter
->dbg
.num_tx_host_to_card_failure
);
893 dev_err(adapter
->dev
, "num_cmd_h2c_failure = %d\n",
894 adapter
->dbg
.num_cmd_host_to_card_failure
);
896 dev_err(adapter
->dev
, "num_cmd_timeout = %d\n",
897 adapter
->dbg
.num_cmd_timeout
);
898 dev_err(adapter
->dev
, "num_tx_timeout = %d\n",
899 adapter
->dbg
.num_tx_timeout
);
901 dev_err(adapter
->dev
, "last_cmd_index = %d\n",
902 adapter
->dbg
.last_cmd_index
);
903 print_hex_dump_bytes("last_cmd_id: ", DUMP_PREFIX_OFFSET
,
904 adapter
->dbg
.last_cmd_id
, DBG_CMD_NUM
);
905 print_hex_dump_bytes("last_cmd_act: ", DUMP_PREFIX_OFFSET
,
906 adapter
->dbg
.last_cmd_act
, DBG_CMD_NUM
);
908 dev_err(adapter
->dev
, "last_cmd_resp_index = %d\n",
909 adapter
->dbg
.last_cmd_resp_index
);
910 print_hex_dump_bytes("last_cmd_resp_id: ", DUMP_PREFIX_OFFSET
,
911 adapter
->dbg
.last_cmd_resp_id
,
914 dev_err(adapter
->dev
, "last_event_index = %d\n",
915 adapter
->dbg
.last_event_index
);
916 print_hex_dump_bytes("last_event: ", DUMP_PREFIX_OFFSET
,
917 adapter
->dbg
.last_event
, DBG_CMD_NUM
);
919 dev_err(adapter
->dev
, "data_sent=%d cmd_sent=%d\n",
920 adapter
->data_sent
, adapter
->cmd_sent
);
922 dev_err(adapter
->dev
, "ps_mode=%d ps_state=%d\n",
923 adapter
->ps_mode
, adapter
->ps_state
);
925 if (adapter
->hw_status
== MWIFIEX_HW_STATUS_INITIALIZING
)
926 mwifiex_init_fw_complete(adapter
);
930 * This function cancels all the pending commands.
932 * The current command, all commands in command pending queue and all scan
933 * commands in scan pending queue are cancelled. All the completion callbacks
934 * are called with failure status to ensure cleanup.
937 mwifiex_cancel_all_pending_cmd(struct mwifiex_adapter
*adapter
)
939 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
;
942 /* Cancel current cmd */
943 if ((adapter
->curr_cmd
) && (adapter
->curr_cmd
->wait_q_enabled
)) {
944 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
945 adapter
->curr_cmd
->wait_q_enabled
= false;
946 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
947 adapter
->cmd_wait_q
.status
= -1;
948 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
950 /* Cancel all pending command */
951 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
952 list_for_each_entry_safe(cmd_node
, tmp_node
,
953 &adapter
->cmd_pending_q
, list
) {
954 list_del(&cmd_node
->list
);
955 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
957 if (cmd_node
->wait_q_enabled
) {
958 adapter
->cmd_wait_q
.status
= -1;
959 mwifiex_complete_cmd(adapter
, cmd_node
);
960 cmd_node
->wait_q_enabled
= false;
962 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
963 spin_lock_irqsave(&adapter
->cmd_pending_q_lock
, flags
);
965 spin_unlock_irqrestore(&adapter
->cmd_pending_q_lock
, flags
);
967 /* Cancel all pending scan command */
968 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
969 list_for_each_entry_safe(cmd_node
, tmp_node
,
970 &adapter
->scan_pending_q
, list
) {
971 list_del(&cmd_node
->list
);
972 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
974 cmd_node
->wait_q_enabled
= false;
975 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
976 spin_lock_irqsave(&adapter
->scan_pending_q_lock
, flags
);
978 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
, flags
);
980 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, flags
);
981 adapter
->scan_processing
= false;
982 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, flags
);
986 * This function cancels all pending commands that matches with
987 * the given IOCTL request.
989 * Both the current command buffer and the pending command queue are
990 * searched for matching IOCTL request. The completion callback of
991 * the matched command is called with failure status to ensure cleanup.
992 * In case of scan commands, all pending commands in scan pending queue
996 mwifiex_cancel_pending_ioctl(struct mwifiex_adapter
*adapter
)
998 struct cmd_ctrl_node
*cmd_node
= NULL
, *tmp_node
= NULL
;
999 unsigned long cmd_flags
;
1000 unsigned long scan_pending_q_flags
;
1001 uint16_t cancel_scan_cmd
= false;
1003 if ((adapter
->curr_cmd
) &&
1004 (adapter
->curr_cmd
->wait_q_enabled
)) {
1005 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1006 cmd_node
= adapter
->curr_cmd
;
1007 cmd_node
->wait_q_enabled
= false;
1008 cmd_node
->cmd_flag
|= CMD_F_CANCELED
;
1009 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1010 mwifiex_complete_cmd(adapter
, adapter
->curr_cmd
);
1011 adapter
->curr_cmd
= NULL
;
1012 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1015 /* Cancel all pending scan command */
1016 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1017 scan_pending_q_flags
);
1018 list_for_each_entry_safe(cmd_node
, tmp_node
,
1019 &adapter
->scan_pending_q
, list
) {
1020 list_del(&cmd_node
->list
);
1021 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1022 scan_pending_q_flags
);
1023 cmd_node
->wait_q_enabled
= false;
1024 mwifiex_insert_cmd_to_free_q(adapter
, cmd_node
);
1025 spin_lock_irqsave(&adapter
->scan_pending_q_lock
,
1026 scan_pending_q_flags
);
1027 cancel_scan_cmd
= true;
1029 spin_unlock_irqrestore(&adapter
->scan_pending_q_lock
,
1030 scan_pending_q_flags
);
1032 if (cancel_scan_cmd
) {
1033 spin_lock_irqsave(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1034 adapter
->scan_processing
= false;
1035 spin_unlock_irqrestore(&adapter
->mwifiex_cmd_lock
, cmd_flags
);
1037 adapter
->cmd_wait_q
.status
= -1;
1041 * This function sends the sleep confirm command to firmware, if
1044 * The sleep confirm command cannot be issued if command response,
1045 * data response or event response is awaiting handling, or if we
1046 * are in the middle of sending a command, or expecting a command
1050 mwifiex_check_ps_cond(struct mwifiex_adapter
*adapter
)
1052 if (!adapter
->cmd_sent
&&
1053 !adapter
->curr_cmd
&& !IS_CARD_RX_RCVD(adapter
))
1054 mwifiex_dnld_sleep_confirm_cmd(adapter
);
1056 dev_dbg(adapter
->dev
,
1057 "cmd: Delay Sleep Confirm (%s%s%s)\n",
1058 (adapter
->cmd_sent
) ? "D" : "",
1059 (adapter
->curr_cmd
) ? "C" : "",
1060 (IS_CARD_RX_RCVD(adapter
)) ? "R" : "");
1064 * This function sends a Host Sleep activated event to applications.
1066 * This event is generated by the driver, with a blank event body.
1069 mwifiex_hs_activated_event(struct mwifiex_private
*priv
, u8 activated
)
1072 if (priv
->adapter
->is_hs_configured
) {
1073 priv
->adapter
->hs_activated
= true;
1074 dev_dbg(priv
->adapter
->dev
, "event: hs_activated\n");
1075 priv
->adapter
->hs_activate_wait_q_woken
= true;
1076 wake_up_interruptible(
1077 &priv
->adapter
->hs_activate_wait_q
);
1079 dev_dbg(priv
->adapter
->dev
, "event: HS not configured\n");
1082 dev_dbg(priv
->adapter
->dev
, "event: hs_deactivated\n");
1083 priv
->adapter
->hs_activated
= false;
1088 * This function handles the command response of a Host Sleep configuration
1091 * Handling includes changing the header fields into CPU format
1092 * and setting the current host sleep activation status in driver.
1094 * In case host sleep status change, the function generates an event to
1095 * notify the applications.
1097 int mwifiex_ret_802_11_hs_cfg(struct mwifiex_private
*priv
,
1098 struct host_cmd_ds_command
*resp
)
1100 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1101 struct host_cmd_ds_802_11_hs_cfg_enh
*phs_cfg
=
1102 &resp
->params
.opt_hs_cfg
;
1103 uint32_t conditions
= le32_to_cpu(phs_cfg
->params
.hs_config
.conditions
);
1105 if (phs_cfg
->action
== cpu_to_le16(HS_ACTIVATE
)) {
1106 mwifiex_hs_activated_event(priv
, true);
1109 dev_dbg(adapter
->dev
, "cmd: CMD_RESP: HS_CFG cmd reply"
1110 " result=%#x, conditions=0x%x gpio=0x%x gap=0x%x\n",
1111 resp
->result
, conditions
,
1112 phs_cfg
->params
.hs_config
.gpio
,
1113 phs_cfg
->params
.hs_config
.gap
);
1115 if (conditions
!= HOST_SLEEP_CFG_CANCEL
) {
1116 adapter
->is_hs_configured
= true;
1118 adapter
->is_hs_configured
= false;
1119 if (adapter
->hs_activated
)
1120 mwifiex_hs_activated_event(priv
, false);
1127 * This function wakes up the adapter and generates a Host Sleep
1128 * cancel event on receiving the power up interrupt.
1131 mwifiex_process_hs_config(struct mwifiex_adapter
*adapter
)
1133 dev_dbg(adapter
->dev
, "info: %s: auto cancelling host sleep"
1134 " since there is interrupt from the firmware\n", __func__
);
1136 adapter
->if_ops
.wakeup(adapter
);
1137 adapter
->hs_activated
= false;
1138 adapter
->is_hs_configured
= false;
1139 mwifiex_hs_activated_event(mwifiex_get_priv(adapter
,
1140 MWIFIEX_BSS_ROLE_ANY
),
1143 EXPORT_SYMBOL_GPL(mwifiex_process_hs_config
);
1146 * This function handles the command response of a sleep confirm command.
1148 * The function sets the card state to SLEEP if the response indicates success.
1151 mwifiex_process_sleep_confirm_resp(struct mwifiex_adapter
*adapter
,
1152 u8
*pbuf
, u32 upld_len
)
1154 struct host_cmd_ds_command
*cmd
= (struct host_cmd_ds_command
*) pbuf
;
1155 struct mwifiex_private
*priv
=
1156 mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1157 uint16_t result
= le16_to_cpu(cmd
->result
);
1158 uint16_t command
= le16_to_cpu(cmd
->command
);
1159 uint16_t seq_num
= le16_to_cpu(cmd
->seq_num
);
1162 dev_err(adapter
->dev
, "%s: cmd size is 0\n", __func__
);
1166 /* Get BSS number and corresponding priv */
1167 priv
= mwifiex_get_priv_by_id(adapter
, HostCmd_GET_BSS_NO(seq_num
),
1168 HostCmd_GET_BSS_TYPE(seq_num
));
1170 priv
= mwifiex_get_priv(adapter
, MWIFIEX_BSS_ROLE_ANY
);
1172 /* Update sequence number */
1173 seq_num
= HostCmd_GET_SEQ_NO(seq_num
);
1174 /* Clear RET_BIT from HostCmd */
1175 command
&= HostCmd_CMD_ID_MASK
;
1177 if (command
!= HostCmd_CMD_802_11_PS_MODE_ENH
) {
1178 dev_err(adapter
->dev
,
1179 "%s: rcvd unexpected resp for cmd %#x, result = %x\n",
1180 __func__
, command
, result
);
1185 dev_err(adapter
->dev
, "%s: sleep confirm cmd failed\n",
1187 adapter
->pm_wakeup_card_req
= false;
1188 adapter
->ps_state
= PS_STATE_AWAKE
;
1191 adapter
->pm_wakeup_card_req
= true;
1192 if (adapter
->is_hs_configured
)
1193 mwifiex_hs_activated_event(mwifiex_get_priv
1194 (adapter
, MWIFIEX_BSS_ROLE_ANY
),
1196 adapter
->ps_state
= PS_STATE_SLEEP
;
1197 cmd
->command
= cpu_to_le16(command
);
1198 cmd
->seq_num
= cpu_to_le16(seq_num
);
1200 EXPORT_SYMBOL_GPL(mwifiex_process_sleep_confirm_resp
);
1203 * This function prepares an enhanced power mode command.
1205 * This function can be used to disable power save or to configure
1206 * power save with auto PS or STA PS or auto deep sleep.
1208 * Preparation includes -
1209 * - Setting command ID, action and proper size
1210 * - Setting Power Save bitmap, PS parameters TLV, PS mode TLV,
1211 * auto deep sleep TLV (as required)
1212 * - Ensuring correct endian-ness
1214 int mwifiex_cmd_enh_power_mode(struct mwifiex_private
*priv
,
1215 struct host_cmd_ds_command
*cmd
,
1216 u16 cmd_action
, uint16_t ps_bitmap
,
1217 struct mwifiex_ds_auto_ds
*auto_ds
)
1219 struct host_cmd_ds_802_11_ps_mode_enh
*psmode_enh
=
1220 &cmd
->params
.psmode_enh
;
1224 cmd
->command
= cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH
);
1225 if (cmd_action
== DIS_AUTO_PS
) {
1226 psmode_enh
->action
= cpu_to_le16(DIS_AUTO_PS
);
1227 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1228 cmd
->size
= cpu_to_le16(S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1229 sizeof(psmode_enh
->params
.ps_bitmap
));
1230 } else if (cmd_action
== GET_PS
) {
1231 psmode_enh
->action
= cpu_to_le16(GET_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
== EN_AUTO_PS
) {
1236 psmode_enh
->action
= cpu_to_le16(EN_AUTO_PS
);
1237 psmode_enh
->params
.ps_bitmap
= cpu_to_le16(ps_bitmap
);
1238 cmd_size
= S_DS_GEN
+ sizeof(psmode_enh
->action
) +
1239 sizeof(psmode_enh
->params
.ps_bitmap
);
1240 tlv
= (u8
*) cmd
+ cmd_size
;
1241 if (ps_bitmap
& BITMAP_STA_PS
) {
1242 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1243 struct mwifiex_ie_types_ps_param
*ps_tlv
=
1244 (struct mwifiex_ie_types_ps_param
*) tlv
;
1245 struct mwifiex_ps_param
*ps_mode
= &ps_tlv
->param
;
1246 ps_tlv
->header
.type
= cpu_to_le16(TLV_TYPE_PS_PARAM
);
1247 ps_tlv
->header
.len
= cpu_to_le16(sizeof(*ps_tlv
) -
1248 sizeof(struct mwifiex_ie_types_header
));
1249 cmd_size
+= sizeof(*ps_tlv
);
1250 tlv
+= sizeof(*ps_tlv
);
1251 dev_dbg(adapter
->dev
, "cmd: PS Command: Enter PS\n");
1252 ps_mode
->null_pkt_interval
=
1253 cpu_to_le16(adapter
->null_pkt_interval
);
1254 ps_mode
->multiple_dtims
=
1255 cpu_to_le16(adapter
->multiple_dtim
);
1256 ps_mode
->bcn_miss_timeout
=
1257 cpu_to_le16(adapter
->bcn_miss_time_out
);
1258 ps_mode
->local_listen_interval
=
1259 cpu_to_le16(adapter
->local_listen_interval
);
1260 ps_mode
->adhoc_wake_period
=
1261 cpu_to_le16(adapter
->adhoc_awake_period
);
1262 ps_mode
->delay_to_ps
=
1263 cpu_to_le16(adapter
->delay_to_ps
);
1264 ps_mode
->mode
= cpu_to_le16(adapter
->enhanced_ps_mode
);
1267 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1268 struct mwifiex_ie_types_auto_ds_param
*auto_ds_tlv
=
1269 (struct mwifiex_ie_types_auto_ds_param
*) tlv
;
1272 auto_ds_tlv
->header
.type
=
1273 cpu_to_le16(TLV_TYPE_AUTO_DS_PARAM
);
1274 auto_ds_tlv
->header
.len
=
1275 cpu_to_le16(sizeof(*auto_ds_tlv
) -
1276 sizeof(struct mwifiex_ie_types_header
));
1277 cmd_size
+= sizeof(*auto_ds_tlv
);
1278 tlv
+= sizeof(*auto_ds_tlv
);
1280 idletime
= auto_ds
->idle_time
;
1281 dev_dbg(priv
->adapter
->dev
,
1282 "cmd: PS Command: Enter Auto Deep Sleep\n");
1283 auto_ds_tlv
->deep_sleep_timeout
= cpu_to_le16(idletime
);
1285 cmd
->size
= cpu_to_le16(cmd_size
);
1291 * This function handles the command response of an enhanced power mode
1294 * Handling includes changing the header fields into CPU format
1295 * and setting the current enhanced power mode in driver.
1297 int mwifiex_ret_enh_power_mode(struct mwifiex_private
*priv
,
1298 struct host_cmd_ds_command
*resp
,
1299 struct mwifiex_ds_pm_cfg
*pm_cfg
)
1301 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1302 struct host_cmd_ds_802_11_ps_mode_enh
*ps_mode
=
1303 &resp
->params
.psmode_enh
;
1304 uint16_t action
= le16_to_cpu(ps_mode
->action
);
1305 uint16_t ps_bitmap
= le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1306 uint16_t auto_ps_bitmap
=
1307 le16_to_cpu(ps_mode
->params
.ps_bitmap
);
1309 dev_dbg(adapter
->dev
,
1310 "info: %s: PS_MODE cmd reply result=%#x action=%#X\n",
1311 __func__
, resp
->result
, action
);
1312 if (action
== EN_AUTO_PS
) {
1313 if (auto_ps_bitmap
& BITMAP_AUTO_DS
) {
1314 dev_dbg(adapter
->dev
, "cmd: Enabled auto deep sleep\n");
1315 priv
->adapter
->is_deep_sleep
= true;
1317 if (auto_ps_bitmap
& BITMAP_STA_PS
) {
1318 dev_dbg(adapter
->dev
, "cmd: Enabled STA power save\n");
1319 if (adapter
->sleep_period
.period
)
1320 dev_dbg(adapter
->dev
,
1321 "cmd: set to uapsd/pps mode\n");
1323 } else if (action
== DIS_AUTO_PS
) {
1324 if (ps_bitmap
& BITMAP_AUTO_DS
) {
1325 priv
->adapter
->is_deep_sleep
= false;
1326 dev_dbg(adapter
->dev
, "cmd: Disabled auto deep sleep\n");
1328 if (ps_bitmap
& BITMAP_STA_PS
) {
1329 dev_dbg(adapter
->dev
, "cmd: Disabled STA power save\n");
1330 if (adapter
->sleep_period
.period
) {
1331 adapter
->delay_null_pkt
= false;
1332 adapter
->tx_lock_flag
= false;
1333 adapter
->pps_uapsd_mode
= false;
1336 } else if (action
== GET_PS
) {
1337 if (ps_bitmap
& BITMAP_STA_PS
)
1338 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_PSP
;
1340 adapter
->ps_mode
= MWIFIEX_802_11_POWER_MODE_CAM
;
1342 dev_dbg(adapter
->dev
, "cmd: ps_bitmap=%#x\n", ps_bitmap
);
1345 /* This section is for get power save mode */
1346 if (ps_bitmap
& BITMAP_STA_PS
)
1347 pm_cfg
->param
.ps_mode
= 1;
1349 pm_cfg
->param
.ps_mode
= 0;
1356 * This function prepares command to get hardware specifications.
1358 * Preparation includes -
1359 * - Setting command ID, action and proper size
1360 * - Setting permanent address parameter
1361 * - Ensuring correct endian-ness
1363 int mwifiex_cmd_get_hw_spec(struct mwifiex_private
*priv
,
1364 struct host_cmd_ds_command
*cmd
)
1366 struct host_cmd_ds_get_hw_spec
*hw_spec
= &cmd
->params
.hw_spec
;
1368 cmd
->command
= cpu_to_le16(HostCmd_CMD_GET_HW_SPEC
);
1370 cpu_to_le16(sizeof(struct host_cmd_ds_get_hw_spec
) + S_DS_GEN
);
1371 memcpy(hw_spec
->permanent_addr
, priv
->curr_addr
, ETH_ALEN
);
1377 * This function handles the command response of get hardware
1380 * Handling includes changing the header fields into CPU format
1381 * and saving/updating the following parameters in driver -
1382 * - Firmware capability information
1383 * - Firmware band settings
1384 * - Ad-hoc start band and channel
1385 * - Ad-hoc 11n activation status
1386 * - Firmware release number
1387 * - Number of antennas
1388 * - Hardware address
1389 * - Hardware interface version
1390 * - Firmware version
1392 * - 11n capabilities
1393 * - MCS support fields
1396 int mwifiex_ret_get_hw_spec(struct mwifiex_private
*priv
,
1397 struct host_cmd_ds_command
*resp
)
1399 struct host_cmd_ds_get_hw_spec
*hw_spec
= &resp
->params
.hw_spec
;
1400 struct mwifiex_adapter
*adapter
= priv
->adapter
;
1403 adapter
->fw_cap_info
= le32_to_cpu(hw_spec
->fw_cap_info
);
1405 if (IS_SUPPORT_MULTI_BANDS(adapter
))
1406 adapter
->fw_bands
= (u8
) GET_FW_DEFAULT_BANDS(adapter
);
1408 adapter
->fw_bands
= BAND_B
;
1410 adapter
->config_bands
= adapter
->fw_bands
;
1412 if (adapter
->fw_bands
& BAND_A
) {
1413 if (adapter
->fw_bands
& BAND_GN
) {
1414 adapter
->config_bands
|= BAND_AN
;
1415 adapter
->fw_bands
|= BAND_AN
;
1417 if (adapter
->fw_bands
& BAND_AN
) {
1418 adapter
->adhoc_start_band
= BAND_A
| BAND_AN
;
1419 adapter
->adhoc_11n_enabled
= true;
1421 adapter
->adhoc_start_band
= BAND_A
;
1423 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL_A
;
1424 } else if (adapter
->fw_bands
& BAND_GN
) {
1425 adapter
->adhoc_start_band
= BAND_G
| BAND_B
| BAND_GN
;
1426 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1427 adapter
->adhoc_11n_enabled
= true;
1428 } else if (adapter
->fw_bands
& BAND_G
) {
1429 adapter
->adhoc_start_band
= BAND_G
| BAND_B
;
1430 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1431 } else if (adapter
->fw_bands
& BAND_B
) {
1432 adapter
->adhoc_start_band
= BAND_B
;
1433 priv
->adhoc_channel
= DEFAULT_AD_HOC_CHANNEL
;
1436 adapter
->fw_release_number
= le32_to_cpu(hw_spec
->fw_release_number
);
1437 adapter
->number_of_antenna
= le16_to_cpu(hw_spec
->number_of_antenna
);
1439 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: fw_release_number- %#x\n",
1440 adapter
->fw_release_number
);
1441 dev_dbg(adapter
->dev
, "info: GET_HW_SPEC: permanent addr: %pM\n",
1442 hw_spec
->permanent_addr
);
1443 dev_dbg(adapter
->dev
,
1444 "info: GET_HW_SPEC: hw_if_version=%#x version=%#x\n",
1445 le16_to_cpu(hw_spec
->hw_if_version
),
1446 le16_to_cpu(hw_spec
->version
));
1448 if (priv
->curr_addr
[0] == 0xff)
1449 memmove(priv
->curr_addr
, hw_spec
->permanent_addr
, ETH_ALEN
);
1451 adapter
->region_code
= le16_to_cpu(hw_spec
->region_code
);
1453 for (i
= 0; i
< MWIFIEX_MAX_REGION_CODE
; i
++)
1454 /* Use the region code to search for the index */
1455 if (adapter
->region_code
== region_code_index
[i
])
1458 /* If it's unidentified region code, use the default (USA) */
1459 if (i
>= MWIFIEX_MAX_REGION_CODE
) {
1460 adapter
->region_code
= 0x10;
1461 dev_dbg(adapter
->dev
,
1462 "cmd: unknown region code, use default (USA)\n");
1465 adapter
->hw_dot_11n_dev_cap
= le32_to_cpu(hw_spec
->dot_11n_dev_cap
);
1466 adapter
->hw_dev_mcs_support
= hw_spec
->dev_mcs_support
;
1468 if (adapter
->if_ops
.update_mp_end_port
)
1469 adapter
->if_ops
.update_mp_end_port(adapter
,
1470 le16_to_cpu(hw_spec
->mp_end_port
));