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>
9 #include <linux/if_arp.h>
15 #define CAL_NF(nf) ((s32)(-(s32)(nf)))
16 #define CAL_RSSI(snr, nf) ((s32)((s32)(snr) + CAL_NF(nf)))
19 * @brief Simple callback that copies response back into command
21 * @param priv A pointer to struct lbs_private structure
22 * @param extra A pointer to the original command structure for which
23 * 'resp' is a response
24 * @param resp A pointer to the command response
26 * @return 0 on success, error on failure
28 int lbs_cmd_copyback(struct lbs_private
*priv
, unsigned long extra
,
29 struct cmd_header
*resp
)
31 struct cmd_header
*buf
= (void *)extra
;
34 copy_len
= min(le16_to_cpu(buf
->size
), le16_to_cpu(resp
->size
));
35 memcpy(buf
, resp
, copy_len
);
38 EXPORT_SYMBOL_GPL(lbs_cmd_copyback
);
41 * @brief Simple callback that ignores the result. Use this if
42 * you just want to send a command to the hardware, but don't
43 * care for the result.
46 * @param extra ignored
49 * @return 0 for success
51 static int lbs_cmd_async_callback(struct lbs_private
*priv
, unsigned long extra
,
52 struct cmd_header
*resp
)
59 * @brief Checks whether a command is allowed in Power Save mode
61 * @param command the command ID
62 * @return 1 if allowed, 0 if not allowed
64 static u8
is_command_allowed_in_ps(u16 cmd
)
69 case CMD_802_11_HOST_SLEEP_CFG
:
78 * @brief Updates the hardware details like MAC address and regulatory region
80 * @param priv A pointer to struct lbs_private structure
82 * @return 0 on success, error on failure
84 int lbs_update_hw_spec(struct lbs_private
*priv
)
86 struct cmd_ds_get_hw_spec cmd
;
90 lbs_deb_enter(LBS_DEB_CMD
);
92 memset(&cmd
, 0, sizeof(cmd
));
93 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
94 memcpy(cmd
.permanentaddr
, priv
->current_addr
, ETH_ALEN
);
95 ret
= lbs_cmd_with_response(priv
, CMD_GET_HW_SPEC
, &cmd
);
99 priv
->fwcapinfo
= le32_to_cpu(cmd
.fwcapinfo
);
101 /* The firmware release is in an interesting format: the patch
102 * level is in the most significant nibble ... so fix that: */
103 priv
->fwrelease
= le32_to_cpu(cmd
.fwrelease
);
104 priv
->fwrelease
= (priv
->fwrelease
<< 8) |
105 (priv
->fwrelease
>> 24 & 0xff);
107 /* Some firmware capabilities:
108 * CF card firmware 5.0.16p0: cap 0x00000303
109 * USB dongle firmware 5.110.17p2: cap 0x00000303
111 lbs_pr_info("%pM, fw %u.%u.%up%u, cap 0x%08x\n",
113 priv
->fwrelease
>> 24 & 0xff,
114 priv
->fwrelease
>> 16 & 0xff,
115 priv
->fwrelease
>> 8 & 0xff,
116 priv
->fwrelease
& 0xff,
118 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
119 cmd
.hwifversion
, cmd
.version
);
121 /* Clamp region code to 8-bit since FW spec indicates that it should
122 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
123 * returns non-zero high 8 bits here.
125 * Firmware version 4.0.102 used in CF8381 has region code shifted. We
126 * need to check for this problem and handle it properly.
128 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) == MRVL_FW_V4
)
129 priv
->regioncode
= (le16_to_cpu(cmd
.regioncode
) >> 8) & 0xFF;
131 priv
->regioncode
= le16_to_cpu(cmd
.regioncode
) & 0xFF;
133 for (i
= 0; i
< MRVDRV_MAX_REGION_CODE
; i
++) {
134 /* use the region code to search for the index */
135 if (priv
->regioncode
== lbs_region_code_to_index
[i
])
139 /* if it's unidentified region code, use the default (USA) */
140 if (i
>= MRVDRV_MAX_REGION_CODE
) {
141 priv
->regioncode
= 0x10;
142 lbs_pr_info("unidentified region code; using the default (USA)\n");
145 if (priv
->current_addr
[0] == 0xff)
146 memmove(priv
->current_addr
, cmd
.permanentaddr
, ETH_ALEN
);
148 if (!priv
->copied_hwaddr
) {
149 memcpy(priv
->dev
->dev_addr
, priv
->current_addr
, ETH_ALEN
);
151 memcpy(priv
->mesh_dev
->dev_addr
,
152 priv
->current_addr
, ETH_ALEN
);
153 priv
->copied_hwaddr
= 1;
157 lbs_deb_leave(LBS_DEB_CMD
);
161 static int lbs_ret_host_sleep_cfg(struct lbs_private
*priv
, unsigned long dummy
,
162 struct cmd_header
*resp
)
164 lbs_deb_enter(LBS_DEB_CMD
);
165 if (priv
->is_host_sleep_activated
) {
166 priv
->is_host_sleep_configured
= 0;
167 if (priv
->psstate
== PS_STATE_FULL_POWER
) {
168 priv
->is_host_sleep_activated
= 0;
169 wake_up_interruptible(&priv
->host_sleep_q
);
172 priv
->is_host_sleep_configured
= 1;
174 lbs_deb_leave(LBS_DEB_CMD
);
178 int lbs_host_sleep_cfg(struct lbs_private
*priv
, uint32_t criteria
,
179 struct wol_config
*p_wol_config
)
181 struct cmd_ds_host_sleep cmd_config
;
185 * Certain firmware versions do not support EHS_REMOVE_WAKEUP command
186 * and the card will return a failure. Since we need to be
187 * able to reset the mask, in those cases we set a 0 mask instead.
189 if (criteria
== EHS_REMOVE_WAKEUP
&& !priv
->ehs_remove_supported
)
192 cmd_config
.hdr
.size
= cpu_to_le16(sizeof(cmd_config
));
193 cmd_config
.criteria
= cpu_to_le32(criteria
);
194 cmd_config
.gpio
= priv
->wol_gpio
;
195 cmd_config
.gap
= priv
->wol_gap
;
197 if (p_wol_config
!= NULL
)
198 memcpy((uint8_t *)&cmd_config
.wol_conf
, (uint8_t *)p_wol_config
,
199 sizeof(struct wol_config
));
201 cmd_config
.wol_conf
.action
= CMD_ACT_ACTION_NONE
;
203 ret
= __lbs_cmd(priv
, CMD_802_11_HOST_SLEEP_CFG
, &cmd_config
.hdr
,
204 le16_to_cpu(cmd_config
.hdr
.size
),
205 lbs_ret_host_sleep_cfg
, 0);
208 memcpy((uint8_t *) p_wol_config
,
209 (uint8_t *)&cmd_config
.wol_conf
,
210 sizeof(struct wol_config
));
212 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret
);
217 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg
);
220 * @brief Sets the Power Save mode
222 * @param priv A pointer to struct lbs_private structure
223 * @param cmd_action The Power Save operation (PS_MODE_ACTION_ENTER_PS or
224 * PS_MODE_ACTION_EXIT_PS)
225 * @param block Whether to block on a response or not
227 * @return 0 on success, error on failure
229 int lbs_set_ps_mode(struct lbs_private
*priv
, u16 cmd_action
, bool block
)
231 struct cmd_ds_802_11_ps_mode cmd
;
234 lbs_deb_enter(LBS_DEB_CMD
);
236 memset(&cmd
, 0, sizeof(cmd
));
237 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
238 cmd
.action
= cpu_to_le16(cmd_action
);
240 if (cmd_action
== PS_MODE_ACTION_ENTER_PS
) {
241 lbs_deb_cmd("PS_MODE: action ENTER_PS\n");
242 cmd
.multipledtim
= cpu_to_le16(1); /* Default DTIM multiple */
243 } else if (cmd_action
== PS_MODE_ACTION_EXIT_PS
) {
244 lbs_deb_cmd("PS_MODE: action EXIT_PS\n");
246 /* We don't handle CONFIRM_SLEEP here because it needs to
247 * be fastpathed to the firmware.
249 lbs_deb_cmd("PS_MODE: unknown action 0x%X\n", cmd_action
);
255 ret
= lbs_cmd_with_response(priv
, CMD_802_11_PS_MODE
, &cmd
);
257 lbs_cmd_async(priv
, CMD_802_11_PS_MODE
, &cmd
.hdr
, sizeof (cmd
));
260 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
264 int lbs_cmd_802_11_sleep_params(struct lbs_private
*priv
, uint16_t cmd_action
,
265 struct sleep_params
*sp
)
267 struct cmd_ds_802_11_sleep_params cmd
;
270 lbs_deb_enter(LBS_DEB_CMD
);
272 if (cmd_action
== CMD_ACT_GET
) {
273 memset(&cmd
, 0, sizeof(cmd
));
275 cmd
.error
= cpu_to_le16(sp
->sp_error
);
276 cmd
.offset
= cpu_to_le16(sp
->sp_offset
);
277 cmd
.stabletime
= cpu_to_le16(sp
->sp_stabletime
);
278 cmd
.calcontrol
= sp
->sp_calcontrol
;
279 cmd
.externalsleepclk
= sp
->sp_extsleepclk
;
280 cmd
.reserved
= cpu_to_le16(sp
->sp_reserved
);
282 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
283 cmd
.action
= cpu_to_le16(cmd_action
);
285 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SLEEP_PARAMS
, &cmd
);
288 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
289 "calcontrol 0x%x extsleepclk 0x%x\n",
290 le16_to_cpu(cmd
.error
), le16_to_cpu(cmd
.offset
),
291 le16_to_cpu(cmd
.stabletime
), cmd
.calcontrol
,
292 cmd
.externalsleepclk
);
294 sp
->sp_error
= le16_to_cpu(cmd
.error
);
295 sp
->sp_offset
= le16_to_cpu(cmd
.offset
);
296 sp
->sp_stabletime
= le16_to_cpu(cmd
.stabletime
);
297 sp
->sp_calcontrol
= cmd
.calcontrol
;
298 sp
->sp_extsleepclk
= cmd
.externalsleepclk
;
299 sp
->sp_reserved
= le16_to_cpu(cmd
.reserved
);
302 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
306 static int lbs_wait_for_ds_awake(struct lbs_private
*priv
)
310 lbs_deb_enter(LBS_DEB_CMD
);
312 if (priv
->is_deep_sleep
) {
313 if (!wait_event_interruptible_timeout(priv
->ds_awake_q
,
314 !priv
->is_deep_sleep
, (10 * HZ
))) {
315 lbs_pr_err("ds_awake_q: timer expired\n");
320 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
324 int lbs_set_deep_sleep(struct lbs_private
*priv
, int deep_sleep
)
328 lbs_deb_enter(LBS_DEB_CMD
);
331 if (priv
->is_deep_sleep
!= 1) {
332 lbs_deb_cmd("deep sleep: sleep\n");
333 BUG_ON(!priv
->enter_deep_sleep
);
334 ret
= priv
->enter_deep_sleep(priv
);
336 netif_stop_queue(priv
->dev
);
337 netif_carrier_off(priv
->dev
);
340 lbs_pr_err("deep sleep: already enabled\n");
343 if (priv
->is_deep_sleep
) {
344 lbs_deb_cmd("deep sleep: wakeup\n");
345 BUG_ON(!priv
->exit_deep_sleep
);
346 ret
= priv
->exit_deep_sleep(priv
);
348 ret
= lbs_wait_for_ds_awake(priv
);
350 lbs_pr_err("deep sleep: wakeup"
356 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
360 static int lbs_ret_host_sleep_activate(struct lbs_private
*priv
,
362 struct cmd_header
*cmd
)
364 lbs_deb_enter(LBS_DEB_FW
);
365 priv
->is_host_sleep_activated
= 1;
366 wake_up_interruptible(&priv
->host_sleep_q
);
367 lbs_deb_leave(LBS_DEB_FW
);
371 int lbs_set_host_sleep(struct lbs_private
*priv
, int host_sleep
)
373 struct cmd_header cmd
;
375 uint32_t criteria
= EHS_REMOVE_WAKEUP
;
377 lbs_deb_enter(LBS_DEB_CMD
);
380 if (priv
->is_host_sleep_activated
!= 1) {
381 memset(&cmd
, 0, sizeof(cmd
));
382 ret
= lbs_host_sleep_cfg(priv
, priv
->wol_criteria
,
383 (struct wol_config
*)NULL
);
385 lbs_pr_info("Host sleep configuration failed: "
389 if (priv
->psstate
== PS_STATE_FULL_POWER
) {
390 ret
= __lbs_cmd(priv
,
391 CMD_802_11_HOST_SLEEP_ACTIVATE
,
394 lbs_ret_host_sleep_activate
, 0);
396 lbs_pr_info("HOST_SLEEP_ACTIVATE "
397 "failed: %d\n", ret
);
400 if (!wait_event_interruptible_timeout(
402 priv
->is_host_sleep_activated
,
404 lbs_pr_err("host_sleep_q: timer expired\n");
408 lbs_pr_err("host sleep: already enabled\n");
411 if (priv
->is_host_sleep_activated
)
412 ret
= lbs_host_sleep_cfg(priv
, criteria
,
413 (struct wol_config
*)NULL
);
420 * @brief Set an SNMP MIB value
422 * @param priv A pointer to struct lbs_private structure
423 * @param oid The OID to set in the firmware
424 * @param val Value to set the OID to
426 * @return 0 on success, error on failure
428 int lbs_set_snmp_mib(struct lbs_private
*priv
, u32 oid
, u16 val
)
430 struct cmd_ds_802_11_snmp_mib cmd
;
433 lbs_deb_enter(LBS_DEB_CMD
);
435 memset(&cmd
, 0, sizeof (cmd
));
436 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
437 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
438 cmd
.oid
= cpu_to_le16((u16
) oid
);
441 case SNMP_MIB_OID_BSS_TYPE
:
442 cmd
.bufsize
= cpu_to_le16(sizeof(u8
));
445 case SNMP_MIB_OID_11D_ENABLE
:
446 case SNMP_MIB_OID_FRAG_THRESHOLD
:
447 case SNMP_MIB_OID_RTS_THRESHOLD
:
448 case SNMP_MIB_OID_SHORT_RETRY_LIMIT
:
449 case SNMP_MIB_OID_LONG_RETRY_LIMIT
:
450 cmd
.bufsize
= cpu_to_le16(sizeof(u16
));
451 *((__le16
*)(&cmd
.value
)) = cpu_to_le16(val
);
454 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid
);
459 lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
460 le16_to_cpu(cmd
.oid
), le16_to_cpu(cmd
.bufsize
), val
);
462 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SNMP_MIB
, &cmd
);
465 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
470 * @brief Get an SNMP MIB value
472 * @param priv A pointer to struct lbs_private structure
473 * @param oid The OID to retrieve from the firmware
474 * @param out_val Location for the returned value
476 * @return 0 on success, error on failure
478 int lbs_get_snmp_mib(struct lbs_private
*priv
, u32 oid
, u16
*out_val
)
480 struct cmd_ds_802_11_snmp_mib cmd
;
483 lbs_deb_enter(LBS_DEB_CMD
);
485 memset(&cmd
, 0, sizeof (cmd
));
486 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
487 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
488 cmd
.oid
= cpu_to_le16(oid
);
490 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SNMP_MIB
, &cmd
);
494 switch (le16_to_cpu(cmd
.bufsize
)) {
496 *out_val
= cmd
.value
[0];
499 *out_val
= le16_to_cpu(*((__le16
*)(&cmd
.value
)));
502 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
503 oid
, le16_to_cpu(cmd
.bufsize
));
508 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
513 * @brief Get the min, max, and current TX power
515 * @param priv A pointer to struct lbs_private structure
516 * @param curlevel Current power level in dBm
517 * @param minlevel Minimum supported power level in dBm (optional)
518 * @param maxlevel Maximum supported power level in dBm (optional)
520 * @return 0 on success, error on failure
522 int lbs_get_tx_power(struct lbs_private
*priv
, s16
*curlevel
, s16
*minlevel
,
525 struct cmd_ds_802_11_rf_tx_power cmd
;
528 lbs_deb_enter(LBS_DEB_CMD
);
530 memset(&cmd
, 0, sizeof(cmd
));
531 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
532 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
534 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_TX_POWER
, &cmd
);
536 *curlevel
= le16_to_cpu(cmd
.curlevel
);
538 *minlevel
= cmd
.minlevel
;
540 *maxlevel
= cmd
.maxlevel
;
543 lbs_deb_leave(LBS_DEB_CMD
);
548 * @brief Set the TX power
550 * @param priv A pointer to struct lbs_private structure
551 * @param dbm The desired power level in dBm
553 * @return 0 on success, error on failure
555 int lbs_set_tx_power(struct lbs_private
*priv
, s16 dbm
)
557 struct cmd_ds_802_11_rf_tx_power cmd
;
560 lbs_deb_enter(LBS_DEB_CMD
);
562 memset(&cmd
, 0, sizeof(cmd
));
563 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
564 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
565 cmd
.curlevel
= cpu_to_le16(dbm
);
567 lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm
);
569 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_TX_POWER
, &cmd
);
571 lbs_deb_leave(LBS_DEB_CMD
);
576 * @brief Enable or disable monitor mode (only implemented on OLPC usb8388 FW)
578 * @param priv A pointer to struct lbs_private structure
579 * @param enable 1 to enable monitor mode, 0 to disable
581 * @return 0 on success, error on failure
583 int lbs_set_monitor_mode(struct lbs_private
*priv
, int enable
)
585 struct cmd_ds_802_11_monitor_mode cmd
;
588 memset(&cmd
, 0, sizeof(cmd
));
589 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
590 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
592 cmd
.mode
= cpu_to_le16(0x1);
594 lbs_deb_cmd("SET_MONITOR_MODE: %d\n", enable
);
596 ret
= lbs_cmd_with_response(priv
, CMD_802_11_MONITOR_MODE
, &cmd
);
598 priv
->dev
->type
= enable
? ARPHRD_IEEE80211_RADIOTAP
:
602 lbs_deb_leave(LBS_DEB_CMD
);
607 * @brief Get the radio channel
609 * @param priv A pointer to struct lbs_private structure
611 * @return The channel on success, error on failure
613 static int lbs_get_channel(struct lbs_private
*priv
)
615 struct cmd_ds_802_11_rf_channel cmd
;
618 lbs_deb_enter(LBS_DEB_CMD
);
620 memset(&cmd
, 0, sizeof(cmd
));
621 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
622 cmd
.action
= cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET
);
624 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_CHANNEL
, &cmd
);
628 ret
= le16_to_cpu(cmd
.channel
);
629 lbs_deb_cmd("current radio channel is %d\n", ret
);
632 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
636 int lbs_update_channel(struct lbs_private
*priv
)
640 /* the channel in f/w could be out of sync; get the current channel */
641 lbs_deb_enter(LBS_DEB_ASSOC
);
643 ret
= lbs_get_channel(priv
);
648 lbs_deb_leave_args(LBS_DEB_ASSOC
, "ret %d", ret
);
653 * @brief Set the radio channel
655 * @param priv A pointer to struct lbs_private structure
656 * @param channel The desired channel, or 0 to clear a locked channel
658 * @return 0 on success, error on failure
660 int lbs_set_channel(struct lbs_private
*priv
, u8 channel
)
662 struct cmd_ds_802_11_rf_channel cmd
;
664 u8 old_channel
= priv
->channel
;
668 lbs_deb_enter(LBS_DEB_CMD
);
670 memset(&cmd
, 0, sizeof(cmd
));
671 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
672 cmd
.action
= cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET
);
673 cmd
.channel
= cpu_to_le16(channel
);
675 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_CHANNEL
, &cmd
);
679 priv
->channel
= (uint8_t) le16_to_cpu(cmd
.channel
);
680 lbs_deb_cmd("channel switch from %d to %d\n", old_channel
,
684 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
689 * @brief Get current RSSI and noise floor
691 * @param priv A pointer to struct lbs_private structure
692 * @param rssi On successful return, signal level in mBm
694 * @return The channel on success, error on failure
696 int lbs_get_rssi(struct lbs_private
*priv
, s8
*rssi
, s8
*nf
)
698 struct cmd_ds_802_11_rssi cmd
;
701 lbs_deb_enter(LBS_DEB_CMD
);
703 BUG_ON(rssi
== NULL
);
706 memset(&cmd
, 0, sizeof(cmd
));
707 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
708 /* Average SNR over last 8 beacons */
709 cmd
.n_or_snr
= cpu_to_le16(8);
711 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RSSI
, &cmd
);
713 *nf
= CAL_NF(le16_to_cpu(cmd
.nf
));
714 *rssi
= CAL_RSSI(le16_to_cpu(cmd
.n_or_snr
), le16_to_cpu(cmd
.nf
));
717 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
722 * @brief Send regulatory and 802.11d domain information to the firmware
724 * @param priv pointer to struct lbs_private
725 * @param request cfg80211 regulatory request structure
726 * @param bands the device's supported bands and channels
728 * @return 0 on success, error code on failure
730 int lbs_set_11d_domain_info(struct lbs_private
*priv
,
731 struct regulatory_request
*request
,
732 struct ieee80211_supported_band
**bands
)
734 struct cmd_ds_802_11d_domain_info cmd
;
735 struct mrvl_ie_domain_param_set
*domain
= &cmd
.domain
;
736 struct ieee80211_country_ie_triplet
*t
;
737 enum ieee80211_band band
;
738 struct ieee80211_channel
*ch
;
740 u8 num_parsed_chan
= 0;
741 u8 first_channel
= 0, next_chan
= 0, max_pwr
= 0;
746 lbs_deb_enter(LBS_DEB_11D
);
748 memset(&cmd
, 0, sizeof(cmd
));
749 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
751 lbs_deb_11d("Setting country code '%c%c'\n",
752 request
->alpha2
[0], request
->alpha2
[1]);
754 domain
->header
.type
= cpu_to_le16(TLV_TYPE_DOMAIN
);
756 /* Set country code */
757 domain
->country_code
[0] = request
->alpha2
[0];
758 domain
->country_code
[1] = request
->alpha2
[1];
759 domain
->country_code
[2] = ' ';
761 /* Now set up the channel triplets; firmware is somewhat picky here
762 * and doesn't validate channel numbers and spans; hence it would
763 * interpret a triplet of (36, 4, 20) as channels 36, 37, 38, 39. Since
764 * the last 3 aren't valid channels, the driver is responsible for
765 * splitting that up into 4 triplet pairs of (36, 1, 20) + (40, 1, 20)
769 (band
< IEEE80211_NUM_BANDS
) && (num_triplet
< MAX_11D_TRIPLETS
);
776 (i
< bands
[band
]->n_channels
) && (num_triplet
< MAX_11D_TRIPLETS
);
778 ch
= &bands
[band
]->channels
[i
];
779 if (ch
->flags
& IEEE80211_CHAN_DISABLED
)
784 next_chan
= first_channel
= (u32
) ch
->hw_value
;
785 max_pwr
= ch
->max_power
;
790 if ((ch
->hw_value
== next_chan
+ 1) &&
791 (ch
->max_power
== max_pwr
)) {
792 /* Consolidate adjacent channels */
796 /* Add this triplet */
797 lbs_deb_11d("11D triplet (%d, %d, %d)\n",
798 first_channel
, num_parsed_chan
,
800 t
= &domain
->triplet
[num_triplet
];
801 t
->chans
.first_channel
= first_channel
;
802 t
->chans
.num_channels
= num_parsed_chan
;
803 t
->chans
.max_power
= max_pwr
;
810 /* Add last triplet */
811 lbs_deb_11d("11D triplet (%d, %d, %d)\n", first_channel
,
812 num_parsed_chan
, max_pwr
);
813 t
= &domain
->triplet
[num_triplet
];
814 t
->chans
.first_channel
= first_channel
;
815 t
->chans
.num_channels
= num_parsed_chan
;
816 t
->chans
.max_power
= max_pwr
;
821 lbs_deb_11d("# triplets %d\n", num_triplet
);
823 /* Set command header sizes */
824 triplet_size
= num_triplet
* sizeof(struct ieee80211_country_ie_triplet
);
825 domain
->header
.len
= cpu_to_le16(sizeof(domain
->country_code
) +
828 lbs_deb_hex(LBS_DEB_11D
, "802.11D domain param set",
829 (u8
*) &cmd
.domain
.country_code
,
830 le16_to_cpu(domain
->header
.len
));
832 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
.hdr
) +
834 sizeof(cmd
.domain
.header
) +
835 sizeof(cmd
.domain
.country_code
) +
838 ret
= lbs_cmd_with_response(priv
, CMD_802_11D_DOMAIN_INFO
, &cmd
);
840 lbs_deb_leave_args(LBS_DEB_11D
, "ret %d", ret
);
845 * @brief Read a MAC, Baseband, or RF register
847 * @param priv pointer to struct lbs_private
848 * @param cmd register command, one of CMD_MAC_REG_ACCESS,
849 * CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
850 * @param offset byte offset of the register to get
851 * @param value on success, the value of the register at 'offset'
853 * @return 0 on success, error code on failure
855 int lbs_get_reg(struct lbs_private
*priv
, u16 reg
, u16 offset
, u32
*value
)
857 struct cmd_ds_reg_access cmd
;
860 lbs_deb_enter(LBS_DEB_CMD
);
862 BUG_ON(value
== NULL
);
864 memset(&cmd
, 0, sizeof(cmd
));
865 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
866 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
868 if (reg
!= CMD_MAC_REG_ACCESS
&&
869 reg
!= CMD_BBP_REG_ACCESS
&&
870 reg
!= CMD_RF_REG_ACCESS
) {
875 ret
= lbs_cmd_with_response(priv
, reg
, &cmd
);
877 if (reg
== CMD_BBP_REG_ACCESS
|| reg
== CMD_RF_REG_ACCESS
)
878 *value
= cmd
.value
.bbp_rf
;
879 else if (reg
== CMD_MAC_REG_ACCESS
)
880 *value
= le32_to_cpu(cmd
.value
.mac
);
884 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
889 * @brief Write a MAC, Baseband, or RF register
891 * @param priv pointer to struct lbs_private
892 * @param cmd register command, one of CMD_MAC_REG_ACCESS,
893 * CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
894 * @param offset byte offset of the register to set
895 * @param value the value to write to the register at 'offset'
897 * @return 0 on success, error code on failure
899 int lbs_set_reg(struct lbs_private
*priv
, u16 reg
, u16 offset
, u32 value
)
901 struct cmd_ds_reg_access cmd
;
904 lbs_deb_enter(LBS_DEB_CMD
);
906 memset(&cmd
, 0, sizeof(cmd
));
907 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
908 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
910 if (reg
== CMD_BBP_REG_ACCESS
|| reg
== CMD_RF_REG_ACCESS
)
911 cmd
.value
.bbp_rf
= (u8
) (value
& 0xFF);
912 else if (reg
== CMD_MAC_REG_ACCESS
)
913 cmd
.value
.mac
= cpu_to_le32(value
);
919 ret
= lbs_cmd_with_response(priv
, reg
, &cmd
);
922 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
926 static void lbs_queue_cmd(struct lbs_private
*priv
,
927 struct cmd_ctrl_node
*cmdnode
)
932 lbs_deb_enter(LBS_DEB_HOST
);
935 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
938 if (!cmdnode
->cmdbuf
->size
) {
939 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
944 /* Exit_PS command needs to be queued in the header always. */
945 if (le16_to_cpu(cmdnode
->cmdbuf
->command
) == CMD_802_11_PS_MODE
) {
946 struct cmd_ds_802_11_ps_mode
*psm
= (void *) &cmdnode
->cmdbuf
;
948 if (psm
->action
== cpu_to_le16(PS_MODE_ACTION_EXIT_PS
)) {
949 if (priv
->psstate
!= PS_STATE_FULL_POWER
)
954 if (le16_to_cpu(cmdnode
->cmdbuf
->command
) == CMD_802_11_WAKEUP_CONFIRM
)
957 spin_lock_irqsave(&priv
->driver_lock
, flags
);
960 list_add_tail(&cmdnode
->list
, &priv
->cmdpendingq
);
962 list_add(&cmdnode
->list
, &priv
->cmdpendingq
);
964 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
966 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
967 le16_to_cpu(cmdnode
->cmdbuf
->command
));
970 lbs_deb_leave(LBS_DEB_HOST
);
973 static void lbs_submit_command(struct lbs_private
*priv
,
974 struct cmd_ctrl_node
*cmdnode
)
977 struct cmd_header
*cmd
;
983 lbs_deb_enter(LBS_DEB_HOST
);
985 cmd
= cmdnode
->cmdbuf
;
987 spin_lock_irqsave(&priv
->driver_lock
, flags
);
988 priv
->cur_cmd
= cmdnode
;
989 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
991 cmdsize
= le16_to_cpu(cmd
->size
);
992 command
= le16_to_cpu(cmd
->command
);
994 /* These commands take longer */
995 if (command
== CMD_802_11_SCAN
|| command
== CMD_802_11_ASSOCIATE
)
998 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
999 command
, le16_to_cpu(cmd
->seqnum
), cmdsize
);
1000 lbs_deb_hex(LBS_DEB_CMD
, "DNLD_CMD", (void *) cmdnode
->cmdbuf
, cmdsize
);
1002 ret
= priv
->hw_host_to_card(priv
, MVMS_CMD
, (u8
*) cmd
, cmdsize
);
1005 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret
);
1006 /* Let the timer kick in and retry, and potentially reset
1007 the whole thing if the condition persists */
1011 if (command
== CMD_802_11_DEEP_SLEEP
) {
1012 if (priv
->is_auto_deep_sleep_enabled
) {
1013 priv
->wakeup_dev_required
= 1;
1014 priv
->dnld_sent
= 0;
1016 priv
->is_deep_sleep
= 1;
1017 lbs_complete_command(priv
, cmdnode
, 0);
1019 /* Setup the timer after transmit command */
1020 mod_timer(&priv
->command_timer
, jiffies
+ timeo
);
1023 lbs_deb_leave(LBS_DEB_HOST
);
1027 * This function inserts command node to cmdfreeq
1028 * after cleans it. Requires priv->driver_lock held.
1030 static void __lbs_cleanup_and_insert_cmd(struct lbs_private
*priv
,
1031 struct cmd_ctrl_node
*cmdnode
)
1033 lbs_deb_enter(LBS_DEB_HOST
);
1038 cmdnode
->callback
= NULL
;
1039 cmdnode
->callback_arg
= 0;
1041 memset(cmdnode
->cmdbuf
, 0, LBS_CMD_BUFFER_SIZE
);
1043 list_add_tail(&cmdnode
->list
, &priv
->cmdfreeq
);
1045 lbs_deb_leave(LBS_DEB_HOST
);
1048 static void lbs_cleanup_and_insert_cmd(struct lbs_private
*priv
,
1049 struct cmd_ctrl_node
*ptempcmd
)
1051 unsigned long flags
;
1053 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1054 __lbs_cleanup_and_insert_cmd(priv
, ptempcmd
);
1055 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1058 void lbs_complete_command(struct lbs_private
*priv
, struct cmd_ctrl_node
*cmd
,
1061 cmd
->result
= result
;
1062 cmd
->cmdwaitqwoken
= 1;
1063 wake_up_interruptible(&cmd
->cmdwait_q
);
1065 if (!cmd
->callback
|| cmd
->callback
== lbs_cmd_async_callback
)
1066 __lbs_cleanup_and_insert_cmd(priv
, cmd
);
1067 priv
->cur_cmd
= NULL
;
1070 int lbs_set_radio(struct lbs_private
*priv
, u8 preamble
, u8 radio_on
)
1072 struct cmd_ds_802_11_radio_control cmd
;
1075 lbs_deb_enter(LBS_DEB_CMD
);
1077 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1078 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1080 /* Only v8 and below support setting the preamble */
1081 if (priv
->fwrelease
< 0x09000000) {
1083 case RADIO_PREAMBLE_SHORT
:
1084 case RADIO_PREAMBLE_AUTO
:
1085 case RADIO_PREAMBLE_LONG
:
1086 cmd
.control
= cpu_to_le16(preamble
);
1094 cmd
.control
|= cpu_to_le16(0x1);
1096 cmd
.control
&= cpu_to_le16(~0x1);
1097 priv
->txpower_cur
= 0;
1100 lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1101 radio_on
? "ON" : "OFF", preamble
);
1103 priv
->radio_on
= radio_on
;
1105 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RADIO_CONTROL
, &cmd
);
1108 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
1112 void lbs_set_mac_control(struct lbs_private
*priv
)
1114 struct cmd_ds_mac_control cmd
;
1116 lbs_deb_enter(LBS_DEB_CMD
);
1118 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1119 cmd
.action
= cpu_to_le16(priv
->mac_control
);
1122 lbs_cmd_async(priv
, CMD_MAC_CONTROL
, &cmd
.hdr
, sizeof(cmd
));
1124 lbs_deb_leave(LBS_DEB_CMD
);
1128 * @brief This function allocates the command buffer and link
1129 * it to command free queue.
1131 * @param priv A pointer to struct lbs_private structure
1134 int lbs_allocate_cmd_buffer(struct lbs_private
*priv
)
1139 struct cmd_ctrl_node
*cmdarray
;
1141 lbs_deb_enter(LBS_DEB_HOST
);
1143 /* Allocate and initialize the command array */
1144 bufsize
= sizeof(struct cmd_ctrl_node
) * LBS_NUM_CMD_BUFFERS
;
1145 if (!(cmdarray
= kzalloc(bufsize
, GFP_KERNEL
))) {
1146 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1150 priv
->cmd_array
= cmdarray
;
1152 /* Allocate and initialize each command buffer in the command array */
1153 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1154 cmdarray
[i
].cmdbuf
= kzalloc(LBS_CMD_BUFFER_SIZE
, GFP_KERNEL
);
1155 if (!cmdarray
[i
].cmdbuf
) {
1156 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1162 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1163 init_waitqueue_head(&cmdarray
[i
].cmdwait_q
);
1164 lbs_cleanup_and_insert_cmd(priv
, &cmdarray
[i
]);
1169 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %d", ret
);
1174 * @brief This function frees the command buffer.
1176 * @param priv A pointer to struct lbs_private structure
1179 int lbs_free_cmd_buffer(struct lbs_private
*priv
)
1181 struct cmd_ctrl_node
*cmdarray
;
1184 lbs_deb_enter(LBS_DEB_HOST
);
1186 /* need to check if cmd array is allocated or not */
1187 if (priv
->cmd_array
== NULL
) {
1188 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1192 cmdarray
= priv
->cmd_array
;
1194 /* Release shared memory buffers */
1195 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1196 if (cmdarray
[i
].cmdbuf
) {
1197 kfree(cmdarray
[i
].cmdbuf
);
1198 cmdarray
[i
].cmdbuf
= NULL
;
1202 /* Release cmd_ctrl_node */
1203 if (priv
->cmd_array
) {
1204 kfree(priv
->cmd_array
);
1205 priv
->cmd_array
= NULL
;
1209 lbs_deb_leave(LBS_DEB_HOST
);
1214 * @brief This function gets a free command node if available in
1215 * command free queue.
1217 * @param priv A pointer to struct lbs_private structure
1218 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1220 static struct cmd_ctrl_node
*lbs_get_free_cmd_node(struct lbs_private
*priv
)
1222 struct cmd_ctrl_node
*tempnode
;
1223 unsigned long flags
;
1225 lbs_deb_enter(LBS_DEB_HOST
);
1230 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1232 if (!list_empty(&priv
->cmdfreeq
)) {
1233 tempnode
= list_first_entry(&priv
->cmdfreeq
,
1234 struct cmd_ctrl_node
, list
);
1235 list_del(&tempnode
->list
);
1237 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1241 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1243 lbs_deb_leave(LBS_DEB_HOST
);
1248 * @brief This function executes next command in command
1249 * pending queue. It will put firmware back to PS mode
1252 * @param priv A pointer to struct lbs_private structure
1255 int lbs_execute_next_command(struct lbs_private
*priv
)
1257 struct cmd_ctrl_node
*cmdnode
= NULL
;
1258 struct cmd_header
*cmd
;
1259 unsigned long flags
;
1262 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1263 * only caller to us is lbs_thread() and we get even when a
1264 * data packet is received */
1265 lbs_deb_enter(LBS_DEB_THREAD
);
1267 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1269 if (priv
->cur_cmd
) {
1270 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1271 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1276 if (!list_empty(&priv
->cmdpendingq
)) {
1277 cmdnode
= list_first_entry(&priv
->cmdpendingq
,
1278 struct cmd_ctrl_node
, list
);
1281 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1284 cmd
= cmdnode
->cmdbuf
;
1286 if (is_command_allowed_in_ps(le16_to_cpu(cmd
->command
))) {
1287 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
1288 (priv
->psstate
== PS_STATE_PRE_SLEEP
)) {
1290 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1291 le16_to_cpu(cmd
->command
),
1296 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1297 "0x%04x in psstate %d\n",
1298 le16_to_cpu(cmd
->command
), priv
->psstate
);
1299 } else if (priv
->psstate
!= PS_STATE_FULL_POWER
) {
1301 * 1. Non-PS command:
1302 * Queue it. set needtowakeup to TRUE if current state
1303 * is SLEEP, otherwise call send EXIT_PS.
1304 * 2. PS command but not EXIT_PS:
1306 * 3. PS command EXIT_PS:
1307 * Set needtowakeup to TRUE if current state is SLEEP,
1308 * otherwise send this command down to firmware
1311 if (cmd
->command
!= cpu_to_le16(CMD_802_11_PS_MODE
)) {
1312 /* Prepare to send Exit PS,
1313 * this non PS command will be sent later */
1314 if ((priv
->psstate
== PS_STATE_SLEEP
)
1315 || (priv
->psstate
== PS_STATE_PRE_SLEEP
)
1317 /* w/ new scheme, it will not reach here.
1318 since it is blocked in main_thread. */
1319 priv
->needtowakeup
= 1;
1321 lbs_set_ps_mode(priv
,
1322 PS_MODE_ACTION_EXIT_PS
,
1330 * PS command. Ignore it if it is not Exit_PS.
1331 * otherwise send it down immediately.
1333 struct cmd_ds_802_11_ps_mode
*psm
= (void *)&cmd
[1];
1336 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1339 cpu_to_le16(PS_MODE_ACTION_EXIT_PS
)) {
1341 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1342 list_del(&cmdnode
->list
);
1343 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1344 lbs_complete_command(priv
, cmdnode
, 0);
1345 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1351 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
1352 (priv
->psstate
== PS_STATE_PRE_SLEEP
)) {
1354 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1355 list_del(&cmdnode
->list
);
1356 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1357 lbs_complete_command(priv
, cmdnode
, 0);
1358 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1359 priv
->needtowakeup
= 1;
1366 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1369 list_del(&cmdnode
->list
);
1370 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1371 le16_to_cpu(cmd
->command
));
1372 lbs_submit_command(priv
, cmdnode
);
1375 * check if in power save mode, if yes, put the device back
1380 * This was the old code for libertas+wext. Someone that
1381 * understands this beast should re-code it in a sane way.
1383 * I actually don't understand why this is related to WPA
1384 * and to connection status, shouldn't powering should be
1385 * independ of such things?
1387 if ((priv
->psmode
!= LBS802_11POWERMODECAM
) &&
1388 (priv
->psstate
== PS_STATE_FULL_POWER
) &&
1389 ((priv
->connect_status
== LBS_CONNECTED
) ||
1390 lbs_mesh_connected(priv
))) {
1391 if (priv
->secinfo
.WPAenabled
||
1392 priv
->secinfo
.WPA2enabled
) {
1393 /* check for valid WPA group keys */
1394 if (priv
->wpa_mcast_key
.len
||
1395 priv
->wpa_unicast_key
.len
) {
1397 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1398 " go back to PS_SLEEP");
1399 lbs_set_ps_mode(priv
,
1400 PS_MODE_ACTION_ENTER_PS
,
1405 "EXEC_NEXT_CMD: cmdpendingq empty, "
1406 "go back to PS_SLEEP");
1407 lbs_set_ps_mode(priv
, PS_MODE_ACTION_ENTER_PS
,
1416 lbs_deb_leave(LBS_DEB_THREAD
);
1420 static void lbs_send_confirmsleep(struct lbs_private
*priv
)
1422 unsigned long flags
;
1425 lbs_deb_enter(LBS_DEB_HOST
);
1426 lbs_deb_hex(LBS_DEB_HOST
, "sleep confirm", (u8
*) &confirm_sleep
,
1427 sizeof(confirm_sleep
));
1429 ret
= priv
->hw_host_to_card(priv
, MVMS_CMD
, (u8
*) &confirm_sleep
,
1430 sizeof(confirm_sleep
));
1432 lbs_pr_alert("confirm_sleep failed\n");
1436 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1438 /* We don't get a response on the sleep-confirmation */
1439 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
1441 if (priv
->is_host_sleep_configured
) {
1442 priv
->is_host_sleep_activated
= 1;
1443 wake_up_interruptible(&priv
->host_sleep_q
);
1446 /* If nothing to do, go back to sleep (?) */
1447 if (!kfifo_len(&priv
->event_fifo
) && !priv
->resp_len
[priv
->resp_idx
])
1448 priv
->psstate
= PS_STATE_SLEEP
;
1450 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1453 lbs_deb_leave(LBS_DEB_HOST
);
1457 * @brief This function checks condition and prepares to
1458 * send sleep confirm command to firmware if ok.
1460 * @param priv A pointer to struct lbs_private structure
1461 * @param psmode Power Saving mode
1464 void lbs_ps_confirm_sleep(struct lbs_private
*priv
)
1466 unsigned long flags
=0;
1469 lbs_deb_enter(LBS_DEB_HOST
);
1471 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1472 if (priv
->dnld_sent
) {
1474 lbs_deb_host("dnld_sent was set\n");
1477 /* In-progress command? */
1478 if (priv
->cur_cmd
) {
1480 lbs_deb_host("cur_cmd was set\n");
1483 /* Pending events or command responses? */
1484 if (kfifo_len(&priv
->event_fifo
) || priv
->resp_len
[priv
->resp_idx
]) {
1486 lbs_deb_host("pending events or command responses\n");
1488 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1491 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1492 lbs_send_confirmsleep(priv
);
1494 lbs_deb_host("sleep confirm has been delayed\n");
1497 lbs_deb_leave(LBS_DEB_HOST
);
1502 * @brief Configures the transmission power control functionality.
1504 * @param priv A pointer to struct lbs_private structure
1505 * @param enable Transmission power control enable
1506 * @param p0 Power level when link quality is good (dBm).
1507 * @param p1 Power level when link quality is fair (dBm).
1508 * @param p2 Power level when link quality is poor (dBm).
1509 * @param usesnr Use Signal to Noise Ratio in TPC
1511 * @return 0 on success
1513 int lbs_set_tpc_cfg(struct lbs_private
*priv
, int enable
, int8_t p0
, int8_t p1
,
1514 int8_t p2
, int usesnr
)
1516 struct cmd_ds_802_11_tpc_cfg cmd
;
1519 memset(&cmd
, 0, sizeof(cmd
));
1520 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1521 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1522 cmd
.enable
= !!enable
;
1523 cmd
.usesnr
= !!usesnr
;
1528 ret
= lbs_cmd_with_response(priv
, CMD_802_11_TPC_CFG
, &cmd
);
1534 * @brief Configures the power adaptation settings.
1536 * @param priv A pointer to struct lbs_private structure
1537 * @param enable Power adaptation enable
1538 * @param p0 Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1539 * @param p1 Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1540 * @param p2 Power level for 48 and 54 Mbps (dBm).
1542 * @return 0 on Success
1545 int lbs_set_power_adapt_cfg(struct lbs_private
*priv
, int enable
, int8_t p0
,
1546 int8_t p1
, int8_t p2
)
1548 struct cmd_ds_802_11_pa_cfg cmd
;
1551 memset(&cmd
, 0, sizeof(cmd
));
1552 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1553 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1554 cmd
.enable
= !!enable
;
1559 ret
= lbs_cmd_with_response(priv
, CMD_802_11_PA_CFG
, &cmd
);
1565 struct cmd_ctrl_node
*__lbs_cmd_async(struct lbs_private
*priv
,
1566 uint16_t command
, struct cmd_header
*in_cmd
, int in_cmd_size
,
1567 int (*callback
)(struct lbs_private
*, unsigned long, struct cmd_header
*),
1568 unsigned long callback_arg
)
1570 struct cmd_ctrl_node
*cmdnode
;
1572 lbs_deb_enter(LBS_DEB_HOST
);
1574 if (priv
->surpriseremoved
) {
1575 lbs_deb_host("PREP_CMD: card removed\n");
1576 cmdnode
= ERR_PTR(-ENOENT
);
1580 /* No commands are allowed in Deep Sleep until we toggle the GPIO
1581 * to wake up the card and it has signaled that it's ready.
1583 if (!priv
->is_auto_deep_sleep_enabled
) {
1584 if (priv
->is_deep_sleep
) {
1585 lbs_deb_cmd("command not allowed in deep sleep\n");
1586 cmdnode
= ERR_PTR(-EBUSY
);
1591 cmdnode
= lbs_get_free_cmd_node(priv
);
1592 if (cmdnode
== NULL
) {
1593 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1595 /* Wake up main thread to execute next command */
1596 wake_up_interruptible(&priv
->waitq
);
1597 cmdnode
= ERR_PTR(-ENOBUFS
);
1601 cmdnode
->callback
= callback
;
1602 cmdnode
->callback_arg
= callback_arg
;
1604 /* Copy the incoming command to the buffer */
1605 memcpy(cmdnode
->cmdbuf
, in_cmd
, in_cmd_size
);
1607 /* Set sequence number, clean result, move to buffer */
1609 cmdnode
->cmdbuf
->command
= cpu_to_le16(command
);
1610 cmdnode
->cmdbuf
->size
= cpu_to_le16(in_cmd_size
);
1611 cmdnode
->cmdbuf
->seqnum
= cpu_to_le16(priv
->seqnum
);
1612 cmdnode
->cmdbuf
->result
= 0;
1614 lbs_deb_host("PREP_CMD: command 0x%04x\n", command
);
1616 cmdnode
->cmdwaitqwoken
= 0;
1617 lbs_queue_cmd(priv
, cmdnode
);
1618 wake_up_interruptible(&priv
->waitq
);
1621 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %p", cmdnode
);
1625 void lbs_cmd_async(struct lbs_private
*priv
, uint16_t command
,
1626 struct cmd_header
*in_cmd
, int in_cmd_size
)
1628 lbs_deb_enter(LBS_DEB_CMD
);
1629 __lbs_cmd_async(priv
, command
, in_cmd
, in_cmd_size
,
1630 lbs_cmd_async_callback
, 0);
1631 lbs_deb_leave(LBS_DEB_CMD
);
1634 int __lbs_cmd(struct lbs_private
*priv
, uint16_t command
,
1635 struct cmd_header
*in_cmd
, int in_cmd_size
,
1636 int (*callback
)(struct lbs_private
*, unsigned long, struct cmd_header
*),
1637 unsigned long callback_arg
)
1639 struct cmd_ctrl_node
*cmdnode
;
1640 unsigned long flags
;
1643 lbs_deb_enter(LBS_DEB_HOST
);
1645 cmdnode
= __lbs_cmd_async(priv
, command
, in_cmd
, in_cmd_size
,
1646 callback
, callback_arg
);
1647 if (IS_ERR(cmdnode
)) {
1648 ret
= PTR_ERR(cmdnode
);
1653 wait_event_interruptible(cmdnode
->cmdwait_q
, cmdnode
->cmdwaitqwoken
);
1655 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1656 ret
= cmdnode
->result
;
1658 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
1661 __lbs_cleanup_and_insert_cmd(priv
, cmdnode
);
1662 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1665 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %d", ret
);
1668 EXPORT_SYMBOL_GPL(__lbs_cmd
);