2 * This file contains the handling of command.
3 * It prepares command and sends it to firmware when it is ready.
6 #include <linux/kfifo.h>
7 #include <linux/sched.h>
8 #include <linux/slab.h>
20 static struct cmd_ctrl_node
*lbs_get_cmd_ctrl_node(struct lbs_private
*priv
);
23 * @brief Simple callback that copies response back into command
25 * @param priv A pointer to struct lbs_private structure
26 * @param extra A pointer to the original command structure for which
27 * 'resp' is a response
28 * @param resp A pointer to the command response
30 * @return 0 on success, error on failure
32 int lbs_cmd_copyback(struct lbs_private
*priv
, unsigned long extra
,
33 struct cmd_header
*resp
)
35 struct cmd_header
*buf
= (void *)extra
;
38 copy_len
= min(le16_to_cpu(buf
->size
), le16_to_cpu(resp
->size
));
39 memcpy(buf
, resp
, copy_len
);
42 EXPORT_SYMBOL_GPL(lbs_cmd_copyback
);
45 * @brief Simple callback that ignores the result. Use this if
46 * you just want to send a command to the hardware, but don't
47 * care for the result.
50 * @param extra ignored
53 * @return 0 for success
55 static int lbs_cmd_async_callback(struct lbs_private
*priv
, unsigned long extra
,
56 struct cmd_header
*resp
)
63 * @brief Checks whether a command is allowed in Power Save mode
65 * @param command the command ID
66 * @return 1 if allowed, 0 if not allowed
68 static u8
is_command_allowed_in_ps(u16 cmd
)
80 * @brief This function checks if the command is allowed.
82 * @param priv A pointer to lbs_private structure
83 * @return allowed or not allowed.
86 static int lbs_is_cmd_allowed(struct lbs_private
*priv
)
90 lbs_deb_enter(LBS_DEB_CMD
);
92 if (!priv
->is_auto_deep_sleep_enabled
) {
93 if (priv
->is_deep_sleep
) {
94 lbs_deb_cmd("command not allowed in deep sleep\n");
99 lbs_deb_leave(LBS_DEB_CMD
);
104 * @brief Updates the hardware details like MAC address and regulatory region
106 * @param priv A pointer to struct lbs_private structure
108 * @return 0 on success, error on failure
110 int lbs_update_hw_spec(struct lbs_private
*priv
)
112 struct cmd_ds_get_hw_spec cmd
;
116 lbs_deb_enter(LBS_DEB_CMD
);
118 memset(&cmd
, 0, sizeof(cmd
));
119 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
120 memcpy(cmd
.permanentaddr
, priv
->current_addr
, ETH_ALEN
);
121 ret
= lbs_cmd_with_response(priv
, CMD_GET_HW_SPEC
, &cmd
);
125 priv
->fwcapinfo
= le32_to_cpu(cmd
.fwcapinfo
);
127 /* The firmware release is in an interesting format: the patch
128 * level is in the most significant nibble ... so fix that: */
129 priv
->fwrelease
= le32_to_cpu(cmd
.fwrelease
);
130 priv
->fwrelease
= (priv
->fwrelease
<< 8) |
131 (priv
->fwrelease
>> 24 & 0xff);
133 /* Some firmware capabilities:
134 * CF card firmware 5.0.16p0: cap 0x00000303
135 * USB dongle firmware 5.110.17p2: cap 0x00000303
137 lbs_pr_info("%pM, fw %u.%u.%up%u, cap 0x%08x\n",
139 priv
->fwrelease
>> 24 & 0xff,
140 priv
->fwrelease
>> 16 & 0xff,
141 priv
->fwrelease
>> 8 & 0xff,
142 priv
->fwrelease
& 0xff,
144 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
145 cmd
.hwifversion
, cmd
.version
);
147 /* Clamp region code to 8-bit since FW spec indicates that it should
148 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
149 * returns non-zero high 8 bits here.
151 * Firmware version 4.0.102 used in CF8381 has region code shifted. We
152 * need to check for this problem and handle it properly.
154 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) == MRVL_FW_V4
)
155 priv
->regioncode
= (le16_to_cpu(cmd
.regioncode
) >> 8) & 0xFF;
157 priv
->regioncode
= le16_to_cpu(cmd
.regioncode
) & 0xFF;
159 for (i
= 0; i
< MRVDRV_MAX_REGION_CODE
; i
++) {
160 /* use the region code to search for the index */
161 if (priv
->regioncode
== lbs_region_code_to_index
[i
])
165 /* if it's unidentified region code, use the default (USA) */
166 if (i
>= MRVDRV_MAX_REGION_CODE
) {
167 priv
->regioncode
= 0x10;
168 lbs_pr_info("unidentified region code; using the default (USA)\n");
171 if (priv
->current_addr
[0] == 0xff)
172 memmove(priv
->current_addr
, cmd
.permanentaddr
, ETH_ALEN
);
174 memcpy(priv
->dev
->dev_addr
, priv
->current_addr
, ETH_ALEN
);
176 memcpy(priv
->mesh_dev
->dev_addr
, priv
->current_addr
, ETH_ALEN
);
178 if (lbs_set_regiontable(priv
, priv
->regioncode
, 0)) {
184 lbs_deb_leave(LBS_DEB_CMD
);
188 int lbs_host_sleep_cfg(struct lbs_private
*priv
, uint32_t criteria
,
189 struct wol_config
*p_wol_config
)
191 struct cmd_ds_host_sleep cmd_config
;
194 cmd_config
.hdr
.size
= cpu_to_le16(sizeof(cmd_config
));
195 cmd_config
.criteria
= cpu_to_le32(criteria
);
196 cmd_config
.gpio
= priv
->wol_gpio
;
197 cmd_config
.gap
= priv
->wol_gap
;
199 if (p_wol_config
!= NULL
)
200 memcpy((uint8_t *)&cmd_config
.wol_conf
, (uint8_t *)p_wol_config
,
201 sizeof(struct wol_config
));
203 cmd_config
.wol_conf
.action
= CMD_ACT_ACTION_NONE
;
205 ret
= lbs_cmd_with_response(priv
, CMD_802_11_HOST_SLEEP_CFG
, &cmd_config
);
208 lbs_deb_cmd("Set WOL criteria to %x\n", criteria
);
209 priv
->wol_criteria
= criteria
;
211 memcpy((uint8_t *) p_wol_config
,
212 (uint8_t *)&cmd_config
.wol_conf
,
213 sizeof(struct wol_config
));
215 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret
);
220 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg
);
222 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command
*cmd
,
225 struct cmd_ds_802_11_ps_mode
*psm
= &cmd
->params
.psmode
;
227 lbs_deb_enter(LBS_DEB_CMD
);
229 cmd
->command
= cpu_to_le16(CMD_802_11_PS_MODE
);
230 cmd
->size
= cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode
) +
231 sizeof(struct cmd_header
));
232 psm
->action
= cpu_to_le16(cmd_action
);
233 psm
->multipledtim
= 0;
234 switch (cmd_action
) {
235 case CMD_SUBCMD_ENTER_PS
:
236 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
238 psm
->locallisteninterval
= 0;
239 psm
->nullpktinterval
= 0;
241 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM
);
244 case CMD_SUBCMD_EXIT_PS
:
245 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
248 case CMD_SUBCMD_SLEEP_CONFIRMED
:
249 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
256 lbs_deb_leave(LBS_DEB_CMD
);
260 int lbs_cmd_802_11_sleep_params(struct lbs_private
*priv
, uint16_t cmd_action
,
261 struct sleep_params
*sp
)
263 struct cmd_ds_802_11_sleep_params cmd
;
266 lbs_deb_enter(LBS_DEB_CMD
);
268 if (cmd_action
== CMD_ACT_GET
) {
269 memset(&cmd
, 0, sizeof(cmd
));
271 cmd
.error
= cpu_to_le16(sp
->sp_error
);
272 cmd
.offset
= cpu_to_le16(sp
->sp_offset
);
273 cmd
.stabletime
= cpu_to_le16(sp
->sp_stabletime
);
274 cmd
.calcontrol
= sp
->sp_calcontrol
;
275 cmd
.externalsleepclk
= sp
->sp_extsleepclk
;
276 cmd
.reserved
= cpu_to_le16(sp
->sp_reserved
);
278 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
279 cmd
.action
= cpu_to_le16(cmd_action
);
281 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SLEEP_PARAMS
, &cmd
);
284 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
285 "calcontrol 0x%x extsleepclk 0x%x\n",
286 le16_to_cpu(cmd
.error
), le16_to_cpu(cmd
.offset
),
287 le16_to_cpu(cmd
.stabletime
), cmd
.calcontrol
,
288 cmd
.externalsleepclk
);
290 sp
->sp_error
= le16_to_cpu(cmd
.error
);
291 sp
->sp_offset
= le16_to_cpu(cmd
.offset
);
292 sp
->sp_stabletime
= le16_to_cpu(cmd
.stabletime
);
293 sp
->sp_calcontrol
= cmd
.calcontrol
;
294 sp
->sp_extsleepclk
= cmd
.externalsleepclk
;
295 sp
->sp_reserved
= le16_to_cpu(cmd
.reserved
);
298 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
302 static int lbs_wait_for_ds_awake(struct lbs_private
*priv
)
306 lbs_deb_enter(LBS_DEB_CMD
);
308 if (priv
->is_deep_sleep
) {
309 if (!wait_event_interruptible_timeout(priv
->ds_awake_q
,
310 !priv
->is_deep_sleep
, (10 * HZ
))) {
311 lbs_pr_err("ds_awake_q: timer expired\n");
316 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
320 int lbs_set_deep_sleep(struct lbs_private
*priv
, int deep_sleep
)
324 lbs_deb_enter(LBS_DEB_CMD
);
327 if (priv
->is_deep_sleep
!= 1) {
328 lbs_deb_cmd("deep sleep: sleep\n");
329 BUG_ON(!priv
->enter_deep_sleep
);
330 ret
= priv
->enter_deep_sleep(priv
);
332 netif_stop_queue(priv
->dev
);
333 netif_carrier_off(priv
->dev
);
336 lbs_pr_err("deep sleep: already enabled\n");
339 if (priv
->is_deep_sleep
) {
340 lbs_deb_cmd("deep sleep: wakeup\n");
341 BUG_ON(!priv
->exit_deep_sleep
);
342 ret
= priv
->exit_deep_sleep(priv
);
344 ret
= lbs_wait_for_ds_awake(priv
);
346 lbs_pr_err("deep sleep: wakeup"
352 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
357 * @brief Set an SNMP MIB value
359 * @param priv A pointer to struct lbs_private structure
360 * @param oid The OID to set in the firmware
361 * @param val Value to set the OID to
363 * @return 0 on success, error on failure
365 int lbs_set_snmp_mib(struct lbs_private
*priv
, u32 oid
, u16 val
)
367 struct cmd_ds_802_11_snmp_mib cmd
;
370 lbs_deb_enter(LBS_DEB_CMD
);
372 memset(&cmd
, 0, sizeof (cmd
));
373 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
374 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
375 cmd
.oid
= cpu_to_le16((u16
) oid
);
378 case SNMP_MIB_OID_BSS_TYPE
:
379 cmd
.bufsize
= cpu_to_le16(sizeof(u8
));
382 case SNMP_MIB_OID_11D_ENABLE
:
383 case SNMP_MIB_OID_FRAG_THRESHOLD
:
384 case SNMP_MIB_OID_RTS_THRESHOLD
:
385 case SNMP_MIB_OID_SHORT_RETRY_LIMIT
:
386 case SNMP_MIB_OID_LONG_RETRY_LIMIT
:
387 cmd
.bufsize
= cpu_to_le16(sizeof(u16
));
388 *((__le16
*)(&cmd
.value
)) = cpu_to_le16(val
);
391 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid
);
396 lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
397 le16_to_cpu(cmd
.oid
), le16_to_cpu(cmd
.bufsize
), val
);
399 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SNMP_MIB
, &cmd
);
402 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
407 * @brief Get an SNMP MIB value
409 * @param priv A pointer to struct lbs_private structure
410 * @param oid The OID to retrieve from the firmware
411 * @param out_val Location for the returned value
413 * @return 0 on success, error on failure
415 int lbs_get_snmp_mib(struct lbs_private
*priv
, u32 oid
, u16
*out_val
)
417 struct cmd_ds_802_11_snmp_mib cmd
;
420 lbs_deb_enter(LBS_DEB_CMD
);
422 memset(&cmd
, 0, sizeof (cmd
));
423 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
424 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
425 cmd
.oid
= cpu_to_le16(oid
);
427 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SNMP_MIB
, &cmd
);
431 switch (le16_to_cpu(cmd
.bufsize
)) {
433 *out_val
= cmd
.value
[0];
436 *out_val
= le16_to_cpu(*((__le16
*)(&cmd
.value
)));
439 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
440 oid
, le16_to_cpu(cmd
.bufsize
));
445 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
450 * @brief Get the min, max, and current TX power
452 * @param priv A pointer to struct lbs_private structure
453 * @param curlevel Current power level in dBm
454 * @param minlevel Minimum supported power level in dBm (optional)
455 * @param maxlevel Maximum supported power level in dBm (optional)
457 * @return 0 on success, error on failure
459 int lbs_get_tx_power(struct lbs_private
*priv
, s16
*curlevel
, s16
*minlevel
,
462 struct cmd_ds_802_11_rf_tx_power cmd
;
465 lbs_deb_enter(LBS_DEB_CMD
);
467 memset(&cmd
, 0, sizeof(cmd
));
468 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
469 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
471 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_TX_POWER
, &cmd
);
473 *curlevel
= le16_to_cpu(cmd
.curlevel
);
475 *minlevel
= cmd
.minlevel
;
477 *maxlevel
= cmd
.maxlevel
;
480 lbs_deb_leave(LBS_DEB_CMD
);
485 * @brief Set the TX power
487 * @param priv A pointer to struct lbs_private structure
488 * @param dbm The desired power level in dBm
490 * @return 0 on success, error on failure
492 int lbs_set_tx_power(struct lbs_private
*priv
, s16 dbm
)
494 struct cmd_ds_802_11_rf_tx_power cmd
;
497 lbs_deb_enter(LBS_DEB_CMD
);
499 memset(&cmd
, 0, sizeof(cmd
));
500 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
501 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
502 cmd
.curlevel
= cpu_to_le16(dbm
);
504 lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm
);
506 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_TX_POWER
, &cmd
);
508 lbs_deb_leave(LBS_DEB_CMD
);
512 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command
*cmd
,
513 u16 cmd_action
, void *pdata_buf
)
515 struct cmd_ds_802_11_monitor_mode
*monitor
= &cmd
->params
.monitor
;
517 cmd
->command
= cpu_to_le16(CMD_802_11_MONITOR_MODE
);
519 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode
) +
520 sizeof(struct cmd_header
));
522 monitor
->action
= cpu_to_le16(cmd_action
);
523 if (cmd_action
== CMD_ACT_SET
) {
525 cpu_to_le16((u16
) (*(u32
*) pdata_buf
));
532 * @brief Get the radio channel
534 * @param priv A pointer to struct lbs_private structure
536 * @return The channel on success, error on failure
538 static int lbs_get_channel(struct lbs_private
*priv
)
540 struct cmd_ds_802_11_rf_channel cmd
;
543 lbs_deb_enter(LBS_DEB_CMD
);
545 memset(&cmd
, 0, sizeof(cmd
));
546 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
547 cmd
.action
= cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET
);
549 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_CHANNEL
, &cmd
);
553 ret
= le16_to_cpu(cmd
.channel
);
554 lbs_deb_cmd("current radio channel is %d\n", ret
);
557 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
561 int lbs_update_channel(struct lbs_private
*priv
)
565 /* the channel in f/w could be out of sync; get the current channel */
566 lbs_deb_enter(LBS_DEB_ASSOC
);
568 ret
= lbs_get_channel(priv
);
573 lbs_deb_leave_args(LBS_DEB_ASSOC
, "ret %d", ret
);
578 * @brief Set the radio channel
580 * @param priv A pointer to struct lbs_private structure
581 * @param channel The desired channel, or 0 to clear a locked channel
583 * @return 0 on success, error on failure
585 int lbs_set_channel(struct lbs_private
*priv
, u8 channel
)
587 struct cmd_ds_802_11_rf_channel cmd
;
589 u8 old_channel
= priv
->channel
;
593 lbs_deb_enter(LBS_DEB_CMD
);
595 memset(&cmd
, 0, sizeof(cmd
));
596 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
597 cmd
.action
= cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET
);
598 cmd
.channel
= cpu_to_le16(channel
);
600 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_CHANNEL
, &cmd
);
604 priv
->channel
= (uint8_t) le16_to_cpu(cmd
.channel
);
605 lbs_deb_cmd("channel switch from %d to %d\n", old_channel
,
609 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
613 static int lbs_cmd_reg_access(struct cmd_ds_command
*cmdptr
,
614 u8 cmd_action
, void *pdata_buf
)
616 struct lbs_offset_value
*offval
;
618 lbs_deb_enter(LBS_DEB_CMD
);
620 offval
= (struct lbs_offset_value
*)pdata_buf
;
622 switch (le16_to_cpu(cmdptr
->command
)) {
623 case CMD_MAC_REG_ACCESS
:
625 struct cmd_ds_mac_reg_access
*macreg
;
628 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access
)
629 + sizeof(struct cmd_header
));
631 (struct cmd_ds_mac_reg_access
*)&cmdptr
->params
.
634 macreg
->action
= cpu_to_le16(cmd_action
);
635 macreg
->offset
= cpu_to_le16((u16
) offval
->offset
);
636 macreg
->value
= cpu_to_le32(offval
->value
);
641 case CMD_BBP_REG_ACCESS
:
643 struct cmd_ds_bbp_reg_access
*bbpreg
;
647 (struct cmd_ds_bbp_reg_access
)
648 + sizeof(struct cmd_header
));
650 (struct cmd_ds_bbp_reg_access
*)&cmdptr
->params
.
653 bbpreg
->action
= cpu_to_le16(cmd_action
);
654 bbpreg
->offset
= cpu_to_le16((u16
) offval
->offset
);
655 bbpreg
->value
= (u8
) offval
->value
;
660 case CMD_RF_REG_ACCESS
:
662 struct cmd_ds_rf_reg_access
*rfreg
;
666 (struct cmd_ds_rf_reg_access
) +
667 sizeof(struct cmd_header
));
669 (struct cmd_ds_rf_reg_access
*)&cmdptr
->params
.
672 rfreg
->action
= cpu_to_le16(cmd_action
);
673 rfreg
->offset
= cpu_to_le16((u16
) offval
->offset
);
674 rfreg
->value
= (u8
) offval
->value
;
683 lbs_deb_leave(LBS_DEB_CMD
);
687 static void lbs_queue_cmd(struct lbs_private
*priv
,
688 struct cmd_ctrl_node
*cmdnode
)
693 lbs_deb_enter(LBS_DEB_HOST
);
696 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
699 if (!cmdnode
->cmdbuf
->size
) {
700 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
705 /* Exit_PS command needs to be queued in the header always. */
706 if (le16_to_cpu(cmdnode
->cmdbuf
->command
) == CMD_802_11_PS_MODE
) {
707 struct cmd_ds_802_11_ps_mode
*psm
= (void *) &cmdnode
->cmdbuf
[1];
709 if (psm
->action
== cpu_to_le16(CMD_SUBCMD_EXIT_PS
)) {
710 if (priv
->psstate
!= PS_STATE_FULL_POWER
)
715 spin_lock_irqsave(&priv
->driver_lock
, flags
);
718 list_add_tail(&cmdnode
->list
, &priv
->cmdpendingq
);
720 list_add(&cmdnode
->list
, &priv
->cmdpendingq
);
722 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
724 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
725 le16_to_cpu(cmdnode
->cmdbuf
->command
));
728 lbs_deb_leave(LBS_DEB_HOST
);
731 static void lbs_submit_command(struct lbs_private
*priv
,
732 struct cmd_ctrl_node
*cmdnode
)
735 struct cmd_header
*cmd
;
741 lbs_deb_enter(LBS_DEB_HOST
);
743 cmd
= cmdnode
->cmdbuf
;
745 spin_lock_irqsave(&priv
->driver_lock
, flags
);
746 priv
->cur_cmd
= cmdnode
;
747 priv
->cur_cmd_retcode
= 0;
748 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
750 cmdsize
= le16_to_cpu(cmd
->size
);
751 command
= le16_to_cpu(cmd
->command
);
753 /* These commands take longer */
754 if (command
== CMD_802_11_SCAN
|| command
== CMD_802_11_ASSOCIATE
)
757 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
758 command
, le16_to_cpu(cmd
->seqnum
), cmdsize
);
759 lbs_deb_hex(LBS_DEB_CMD
, "DNLD_CMD", (void *) cmdnode
->cmdbuf
, cmdsize
);
761 ret
= priv
->hw_host_to_card(priv
, MVMS_CMD
, (u8
*) cmd
, cmdsize
);
764 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret
);
765 /* Let the timer kick in and retry, and potentially reset
766 the whole thing if the condition persists */
770 if (command
== CMD_802_11_DEEP_SLEEP
) {
771 if (priv
->is_auto_deep_sleep_enabled
) {
772 priv
->wakeup_dev_required
= 1;
775 priv
->is_deep_sleep
= 1;
776 lbs_complete_command(priv
, cmdnode
, 0);
778 /* Setup the timer after transmit command */
779 mod_timer(&priv
->command_timer
, jiffies
+ timeo
);
782 lbs_deb_leave(LBS_DEB_HOST
);
786 * This function inserts command node to cmdfreeq
787 * after cleans it. Requires priv->driver_lock held.
789 static void __lbs_cleanup_and_insert_cmd(struct lbs_private
*priv
,
790 struct cmd_ctrl_node
*cmdnode
)
792 lbs_deb_enter(LBS_DEB_HOST
);
797 cmdnode
->callback
= NULL
;
798 cmdnode
->callback_arg
= 0;
800 memset(cmdnode
->cmdbuf
, 0, LBS_CMD_BUFFER_SIZE
);
802 list_add_tail(&cmdnode
->list
, &priv
->cmdfreeq
);
804 lbs_deb_leave(LBS_DEB_HOST
);
807 static void lbs_cleanup_and_insert_cmd(struct lbs_private
*priv
,
808 struct cmd_ctrl_node
*ptempcmd
)
812 spin_lock_irqsave(&priv
->driver_lock
, flags
);
813 __lbs_cleanup_and_insert_cmd(priv
, ptempcmd
);
814 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
817 void lbs_complete_command(struct lbs_private
*priv
, struct cmd_ctrl_node
*cmd
,
820 if (cmd
== priv
->cur_cmd
)
821 priv
->cur_cmd_retcode
= result
;
823 cmd
->result
= result
;
824 cmd
->cmdwaitqwoken
= 1;
825 wake_up_interruptible(&cmd
->cmdwait_q
);
827 if (!cmd
->callback
|| cmd
->callback
== lbs_cmd_async_callback
)
828 __lbs_cleanup_and_insert_cmd(priv
, cmd
);
829 priv
->cur_cmd
= NULL
;
832 int lbs_set_radio(struct lbs_private
*priv
, u8 preamble
, u8 radio_on
)
834 struct cmd_ds_802_11_radio_control cmd
;
837 lbs_deb_enter(LBS_DEB_CMD
);
839 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
840 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
842 /* Only v8 and below support setting the preamble */
843 if (priv
->fwrelease
< 0x09000000) {
845 case RADIO_PREAMBLE_SHORT
:
846 case RADIO_PREAMBLE_AUTO
:
847 case RADIO_PREAMBLE_LONG
:
848 cmd
.control
= cpu_to_le16(preamble
);
856 cmd
.control
|= cpu_to_le16(0x1);
858 cmd
.control
&= cpu_to_le16(~0x1);
859 priv
->txpower_cur
= 0;
862 lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
863 radio_on
? "ON" : "OFF", preamble
);
865 priv
->radio_on
= radio_on
;
867 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RADIO_CONTROL
, &cmd
);
870 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
874 void lbs_set_mac_control(struct lbs_private
*priv
)
876 struct cmd_ds_mac_control cmd
;
878 lbs_deb_enter(LBS_DEB_CMD
);
880 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
881 cmd
.action
= cpu_to_le16(priv
->mac_control
);
884 lbs_cmd_async(priv
, CMD_MAC_CONTROL
, &cmd
.hdr
, sizeof(cmd
));
886 lbs_deb_leave(LBS_DEB_CMD
);
890 * @brief This function prepare the command before send to firmware.
892 * @param priv A pointer to struct lbs_private structure
893 * @param cmd_no command number
894 * @param cmd_action command action: GET or SET
895 * @param wait_option wait option: wait response or not
896 * @param cmd_oid cmd oid: treated as sub command
897 * @param pdata_buf A pointer to informaion buffer
900 int lbs_prepare_and_send_command(struct lbs_private
*priv
,
903 u16 wait_option
, u32 cmd_oid
, void *pdata_buf
)
906 struct cmd_ctrl_node
*cmdnode
;
907 struct cmd_ds_command
*cmdptr
;
910 lbs_deb_enter(LBS_DEB_HOST
);
913 lbs_deb_host("PREP_CMD: priv is NULL\n");
918 if (priv
->surpriseremoved
) {
919 lbs_deb_host("PREP_CMD: card removed\n");
924 if (!lbs_is_cmd_allowed(priv
)) {
929 cmdnode
= lbs_get_cmd_ctrl_node(priv
);
931 if (cmdnode
== NULL
) {
932 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
934 /* Wake up main thread to execute next command */
935 wake_up_interruptible(&priv
->waitq
);
940 cmdnode
->callback
= NULL
;
941 cmdnode
->callback_arg
= (unsigned long)pdata_buf
;
943 cmdptr
= (struct cmd_ds_command
*)cmdnode
->cmdbuf
;
945 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no
);
947 /* Set sequence number, command and INT option */
949 cmdptr
->seqnum
= cpu_to_le16(priv
->seqnum
);
951 cmdptr
->command
= cpu_to_le16(cmd_no
);
955 case CMD_802_11_PS_MODE
:
956 ret
= lbs_cmd_802_11_ps_mode(cmdptr
, cmd_action
);
959 case CMD_MAC_REG_ACCESS
:
960 case CMD_BBP_REG_ACCESS
:
961 case CMD_RF_REG_ACCESS
:
962 ret
= lbs_cmd_reg_access(cmdptr
, cmd_action
, pdata_buf
);
965 case CMD_802_11_MONITOR_MODE
:
966 ret
= lbs_cmd_802_11_monitor_mode(cmdptr
,
967 cmd_action
, pdata_buf
);
970 case CMD_802_11_RSSI
:
971 ret
= lbs_cmd_802_11_rssi(priv
, cmdptr
);
974 case CMD_802_11_SET_AFC
:
975 case CMD_802_11_GET_AFC
:
977 cmdptr
->command
= cpu_to_le16(cmd_no
);
978 cmdptr
->size
= cpu_to_le16(sizeof(struct cmd_ds_802_11_afc
) +
979 sizeof(struct cmd_header
));
981 memmove(&cmdptr
->params
.afc
,
982 pdata_buf
, sizeof(struct cmd_ds_802_11_afc
));
987 case CMD_802_11_TPC_CFG
:
988 cmdptr
->command
= cpu_to_le16(CMD_802_11_TPC_CFG
);
990 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg
) +
991 sizeof(struct cmd_header
));
993 memmove(&cmdptr
->params
.tpccfg
,
994 pdata_buf
, sizeof(struct cmd_ds_802_11_tpc_cfg
));
999 #ifdef CONFIG_LIBERTAS_MESH
1002 ret
= lbs_cmd_bt_access(cmdptr
, cmd_action
, pdata_buf
);
1005 case CMD_FWT_ACCESS
:
1006 ret
= lbs_cmd_fwt_access(cmdptr
, cmd_action
, pdata_buf
);
1011 case CMD_802_11_BEACON_CTRL
:
1012 ret
= lbs_cmd_bcn_ctrl(priv
, cmdptr
, cmd_action
);
1014 case CMD_802_11_DEEP_SLEEP
:
1015 cmdptr
->command
= cpu_to_le16(CMD_802_11_DEEP_SLEEP
);
1016 cmdptr
->size
= cpu_to_le16(sizeof(struct cmd_header
));
1019 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no
);
1024 /* return error, since the command preparation failed */
1026 lbs_deb_host("PREP_CMD: command preparation failed\n");
1027 lbs_cleanup_and_insert_cmd(priv
, cmdnode
);
1032 cmdnode
->cmdwaitqwoken
= 0;
1034 lbs_queue_cmd(priv
, cmdnode
);
1035 wake_up_interruptible(&priv
->waitq
);
1037 if (wait_option
& CMD_OPTION_WAITFORRSP
) {
1038 lbs_deb_host("PREP_CMD: wait for response\n");
1040 wait_event_interruptible(cmdnode
->cmdwait_q
,
1041 cmdnode
->cmdwaitqwoken
);
1044 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1045 if (priv
->cur_cmd_retcode
) {
1046 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1047 priv
->cur_cmd_retcode
);
1048 priv
->cur_cmd_retcode
= 0;
1051 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1054 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %d", ret
);
1059 * @brief This function allocates the command buffer and link
1060 * it to command free queue.
1062 * @param priv A pointer to struct lbs_private structure
1065 int lbs_allocate_cmd_buffer(struct lbs_private
*priv
)
1070 struct cmd_ctrl_node
*cmdarray
;
1072 lbs_deb_enter(LBS_DEB_HOST
);
1074 /* Allocate and initialize the command array */
1075 bufsize
= sizeof(struct cmd_ctrl_node
) * LBS_NUM_CMD_BUFFERS
;
1076 if (!(cmdarray
= kzalloc(bufsize
, GFP_KERNEL
))) {
1077 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1081 priv
->cmd_array
= cmdarray
;
1083 /* Allocate and initialize each command buffer in the command array */
1084 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1085 cmdarray
[i
].cmdbuf
= kzalloc(LBS_CMD_BUFFER_SIZE
, GFP_KERNEL
);
1086 if (!cmdarray
[i
].cmdbuf
) {
1087 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1093 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1094 init_waitqueue_head(&cmdarray
[i
].cmdwait_q
);
1095 lbs_cleanup_and_insert_cmd(priv
, &cmdarray
[i
]);
1100 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %d", ret
);
1105 * @brief This function frees the command buffer.
1107 * @param priv A pointer to struct lbs_private structure
1110 int lbs_free_cmd_buffer(struct lbs_private
*priv
)
1112 struct cmd_ctrl_node
*cmdarray
;
1115 lbs_deb_enter(LBS_DEB_HOST
);
1117 /* need to check if cmd array is allocated or not */
1118 if (priv
->cmd_array
== NULL
) {
1119 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1123 cmdarray
= priv
->cmd_array
;
1125 /* Release shared memory buffers */
1126 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1127 if (cmdarray
[i
].cmdbuf
) {
1128 kfree(cmdarray
[i
].cmdbuf
);
1129 cmdarray
[i
].cmdbuf
= NULL
;
1133 /* Release cmd_ctrl_node */
1134 if (priv
->cmd_array
) {
1135 kfree(priv
->cmd_array
);
1136 priv
->cmd_array
= NULL
;
1140 lbs_deb_leave(LBS_DEB_HOST
);
1145 * @brief This function gets a free command node if available in
1146 * command free queue.
1148 * @param priv A pointer to struct lbs_private structure
1149 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1151 static struct cmd_ctrl_node
*lbs_get_cmd_ctrl_node(struct lbs_private
*priv
)
1153 struct cmd_ctrl_node
*tempnode
;
1154 unsigned long flags
;
1156 lbs_deb_enter(LBS_DEB_HOST
);
1161 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1163 if (!list_empty(&priv
->cmdfreeq
)) {
1164 tempnode
= list_first_entry(&priv
->cmdfreeq
,
1165 struct cmd_ctrl_node
, list
);
1166 list_del(&tempnode
->list
);
1168 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1172 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1174 lbs_deb_leave(LBS_DEB_HOST
);
1179 * @brief This function executes next command in command
1180 * pending queue. It will put firmware back to PS mode
1183 * @param priv A pointer to struct lbs_private structure
1186 int lbs_execute_next_command(struct lbs_private
*priv
)
1188 struct cmd_ctrl_node
*cmdnode
= NULL
;
1189 struct cmd_header
*cmd
;
1190 unsigned long flags
;
1193 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1194 * only caller to us is lbs_thread() and we get even when a
1195 * data packet is received */
1196 lbs_deb_enter(LBS_DEB_THREAD
);
1198 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1200 if (priv
->cur_cmd
) {
1201 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1202 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1207 if (!list_empty(&priv
->cmdpendingq
)) {
1208 cmdnode
= list_first_entry(&priv
->cmdpendingq
,
1209 struct cmd_ctrl_node
, list
);
1212 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1215 cmd
= cmdnode
->cmdbuf
;
1217 if (is_command_allowed_in_ps(le16_to_cpu(cmd
->command
))) {
1218 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
1219 (priv
->psstate
== PS_STATE_PRE_SLEEP
)) {
1221 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1222 le16_to_cpu(cmd
->command
),
1227 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1228 "0x%04x in psstate %d\n",
1229 le16_to_cpu(cmd
->command
), priv
->psstate
);
1230 } else if (priv
->psstate
!= PS_STATE_FULL_POWER
) {
1232 * 1. Non-PS command:
1233 * Queue it. set needtowakeup to TRUE if current state
1234 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1235 * 2. PS command but not Exit_PS:
1237 * 3. PS command Exit_PS:
1238 * Set needtowakeup to TRUE if current state is SLEEP,
1239 * otherwise send this command down to firmware
1242 if (cmd
->command
!= cpu_to_le16(CMD_802_11_PS_MODE
)) {
1243 /* Prepare to send Exit PS,
1244 * this non PS command will be sent later */
1245 if ((priv
->psstate
== PS_STATE_SLEEP
)
1246 || (priv
->psstate
== PS_STATE_PRE_SLEEP
)
1248 /* w/ new scheme, it will not reach here.
1249 since it is blocked in main_thread. */
1250 priv
->needtowakeup
= 1;
1252 lbs_ps_wakeup(priv
, 0);
1258 * PS command. Ignore it if it is not Exit_PS.
1259 * otherwise send it down immediately.
1261 struct cmd_ds_802_11_ps_mode
*psm
= (void *)&cmd
[1];
1264 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1267 cpu_to_le16(CMD_SUBCMD_EXIT_PS
)) {
1269 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1270 list_del(&cmdnode
->list
);
1271 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1272 lbs_complete_command(priv
, cmdnode
, 0);
1273 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1279 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
1280 (priv
->psstate
== PS_STATE_PRE_SLEEP
)) {
1282 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1283 list_del(&cmdnode
->list
);
1284 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1285 lbs_complete_command(priv
, cmdnode
, 0);
1286 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1287 priv
->needtowakeup
= 1;
1294 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1297 list_del(&cmdnode
->list
);
1298 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1299 le16_to_cpu(cmd
->command
));
1300 lbs_submit_command(priv
, cmdnode
);
1303 * check if in power save mode, if yes, put the device back
1306 if ((priv
->psmode
!= LBS802_11POWERMODECAM
) &&
1307 (priv
->psstate
== PS_STATE_FULL_POWER
) &&
1308 ((priv
->connect_status
== LBS_CONNECTED
) ||
1309 lbs_mesh_connected(priv
))) {
1310 if (priv
->secinfo
.WPAenabled
||
1311 priv
->secinfo
.WPA2enabled
) {
1312 /* check for valid WPA group keys */
1313 if (priv
->wpa_mcast_key
.len
||
1314 priv
->wpa_unicast_key
.len
) {
1316 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1317 " go back to PS_SLEEP");
1318 lbs_ps_sleep(priv
, 0);
1322 "EXEC_NEXT_CMD: cmdpendingq empty, "
1323 "go back to PS_SLEEP");
1324 lbs_ps_sleep(priv
, 0);
1331 lbs_deb_leave(LBS_DEB_THREAD
);
1335 static void lbs_send_confirmsleep(struct lbs_private
*priv
)
1337 unsigned long flags
;
1340 lbs_deb_enter(LBS_DEB_HOST
);
1341 lbs_deb_hex(LBS_DEB_HOST
, "sleep confirm", (u8
*) &confirm_sleep
,
1342 sizeof(confirm_sleep
));
1344 ret
= priv
->hw_host_to_card(priv
, MVMS_CMD
, (u8
*) &confirm_sleep
,
1345 sizeof(confirm_sleep
));
1347 lbs_pr_alert("confirm_sleep failed\n");
1351 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1353 /* We don't get a response on the sleep-confirmation */
1354 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
1356 /* If nothing to do, go back to sleep (?) */
1357 if (!kfifo_len(&priv
->event_fifo
) && !priv
->resp_len
[priv
->resp_idx
])
1358 priv
->psstate
= PS_STATE_SLEEP
;
1360 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1363 lbs_deb_leave(LBS_DEB_HOST
);
1366 void lbs_ps_sleep(struct lbs_private
*priv
, int wait_option
)
1368 lbs_deb_enter(LBS_DEB_HOST
);
1371 * PS is currently supported only in Infrastructure mode
1372 * Remove this check if it is to be supported in IBSS mode also
1375 lbs_prepare_and_send_command(priv
, CMD_802_11_PS_MODE
,
1376 CMD_SUBCMD_ENTER_PS
, wait_option
, 0, NULL
);
1378 lbs_deb_leave(LBS_DEB_HOST
);
1382 * @brief This function sends Exit_PS command to firmware.
1384 * @param priv A pointer to struct lbs_private structure
1385 * @param wait_option wait response or not
1388 void lbs_ps_wakeup(struct lbs_private
*priv
, int wait_option
)
1392 lbs_deb_enter(LBS_DEB_HOST
);
1394 Localpsmode
= cpu_to_le32(LBS802_11POWERMODECAM
);
1396 lbs_prepare_and_send_command(priv
, CMD_802_11_PS_MODE
,
1398 wait_option
, 0, &Localpsmode
);
1400 lbs_deb_leave(LBS_DEB_HOST
);
1404 * @brief This function checks condition and prepares to
1405 * send sleep confirm command to firmware if ok.
1407 * @param priv A pointer to struct lbs_private structure
1408 * @param psmode Power Saving mode
1411 void lbs_ps_confirm_sleep(struct lbs_private
*priv
)
1413 unsigned long flags
=0;
1416 lbs_deb_enter(LBS_DEB_HOST
);
1418 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1419 if (priv
->dnld_sent
) {
1421 lbs_deb_host("dnld_sent was set\n");
1424 /* In-progress command? */
1425 if (priv
->cur_cmd
) {
1427 lbs_deb_host("cur_cmd was set\n");
1430 /* Pending events or command responses? */
1431 if (kfifo_len(&priv
->event_fifo
) || priv
->resp_len
[priv
->resp_idx
]) {
1433 lbs_deb_host("pending events or command responses\n");
1435 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1438 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1439 lbs_send_confirmsleep(priv
);
1441 lbs_deb_host("sleep confirm has been delayed\n");
1444 lbs_deb_leave(LBS_DEB_HOST
);
1449 * @brief Configures the transmission power control functionality.
1451 * @param priv A pointer to struct lbs_private structure
1452 * @param enable Transmission power control enable
1453 * @param p0 Power level when link quality is good (dBm).
1454 * @param p1 Power level when link quality is fair (dBm).
1455 * @param p2 Power level when link quality is poor (dBm).
1456 * @param usesnr Use Signal to Noise Ratio in TPC
1458 * @return 0 on success
1460 int lbs_set_tpc_cfg(struct lbs_private
*priv
, int enable
, int8_t p0
, int8_t p1
,
1461 int8_t p2
, int usesnr
)
1463 struct cmd_ds_802_11_tpc_cfg cmd
;
1466 memset(&cmd
, 0, sizeof(cmd
));
1467 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1468 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1469 cmd
.enable
= !!enable
;
1470 cmd
.usesnr
= !!usesnr
;
1475 ret
= lbs_cmd_with_response(priv
, CMD_802_11_TPC_CFG
, &cmd
);
1481 * @brief Configures the power adaptation settings.
1483 * @param priv A pointer to struct lbs_private structure
1484 * @param enable Power adaptation enable
1485 * @param p0 Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1486 * @param p1 Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1487 * @param p2 Power level for 48 and 54 Mbps (dBm).
1489 * @return 0 on Success
1492 int lbs_set_power_adapt_cfg(struct lbs_private
*priv
, int enable
, int8_t p0
,
1493 int8_t p1
, int8_t p2
)
1495 struct cmd_ds_802_11_pa_cfg cmd
;
1498 memset(&cmd
, 0, sizeof(cmd
));
1499 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1500 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1501 cmd
.enable
= !!enable
;
1506 ret
= lbs_cmd_with_response(priv
, CMD_802_11_PA_CFG
, &cmd
);
1512 struct cmd_ctrl_node
*__lbs_cmd_async(struct lbs_private
*priv
,
1513 uint16_t command
, struct cmd_header
*in_cmd
, int in_cmd_size
,
1514 int (*callback
)(struct lbs_private
*, unsigned long, struct cmd_header
*),
1515 unsigned long callback_arg
)
1517 struct cmd_ctrl_node
*cmdnode
;
1519 lbs_deb_enter(LBS_DEB_HOST
);
1521 if (priv
->surpriseremoved
) {
1522 lbs_deb_host("PREP_CMD: card removed\n");
1523 cmdnode
= ERR_PTR(-ENOENT
);
1527 if (!lbs_is_cmd_allowed(priv
)) {
1528 cmdnode
= ERR_PTR(-EBUSY
);
1532 cmdnode
= lbs_get_cmd_ctrl_node(priv
);
1533 if (cmdnode
== NULL
) {
1534 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1536 /* Wake up main thread to execute next command */
1537 wake_up_interruptible(&priv
->waitq
);
1538 cmdnode
= ERR_PTR(-ENOBUFS
);
1542 cmdnode
->callback
= callback
;
1543 cmdnode
->callback_arg
= callback_arg
;
1545 /* Copy the incoming command to the buffer */
1546 memcpy(cmdnode
->cmdbuf
, in_cmd
, in_cmd_size
);
1548 /* Set sequence number, clean result, move to buffer */
1550 cmdnode
->cmdbuf
->command
= cpu_to_le16(command
);
1551 cmdnode
->cmdbuf
->size
= cpu_to_le16(in_cmd_size
);
1552 cmdnode
->cmdbuf
->seqnum
= cpu_to_le16(priv
->seqnum
);
1553 cmdnode
->cmdbuf
->result
= 0;
1555 lbs_deb_host("PREP_CMD: command 0x%04x\n", command
);
1557 cmdnode
->cmdwaitqwoken
= 0;
1558 lbs_queue_cmd(priv
, cmdnode
);
1559 wake_up_interruptible(&priv
->waitq
);
1562 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %p", cmdnode
);
1566 void lbs_cmd_async(struct lbs_private
*priv
, uint16_t command
,
1567 struct cmd_header
*in_cmd
, int in_cmd_size
)
1569 lbs_deb_enter(LBS_DEB_CMD
);
1570 __lbs_cmd_async(priv
, command
, in_cmd
, in_cmd_size
,
1571 lbs_cmd_async_callback
, 0);
1572 lbs_deb_leave(LBS_DEB_CMD
);
1575 int __lbs_cmd(struct lbs_private
*priv
, uint16_t command
,
1576 struct cmd_header
*in_cmd
, int in_cmd_size
,
1577 int (*callback
)(struct lbs_private
*, unsigned long, struct cmd_header
*),
1578 unsigned long callback_arg
)
1580 struct cmd_ctrl_node
*cmdnode
;
1581 unsigned long flags
;
1584 lbs_deb_enter(LBS_DEB_HOST
);
1586 cmdnode
= __lbs_cmd_async(priv
, command
, in_cmd
, in_cmd_size
,
1587 callback
, callback_arg
);
1588 if (IS_ERR(cmdnode
)) {
1589 ret
= PTR_ERR(cmdnode
);
1594 wait_event_interruptible(cmdnode
->cmdwait_q
, cmdnode
->cmdwaitqwoken
);
1596 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1597 ret
= cmdnode
->result
;
1599 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
1602 __lbs_cleanup_and_insert_cmd(priv
, cmdnode
);
1603 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1606 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %d", ret
);
1609 EXPORT_SYMBOL_GPL(__lbs_cmd
);