2 * This file contains the handling of command.
3 * It prepares command and sends it to firmware when it is ready.
6 #include <linux/hardirq.h>
7 #include <linux/kfifo.h>
8 #include <linux/sched.h>
9 #include <linux/slab.h>
10 #include <linux/if_arp.h>
16 #define CAL_NF(nf) ((s32)(-(s32)(nf)))
17 #define CAL_RSSI(snr, nf) ((s32)((s32)(snr) + CAL_NF(nf)))
20 * lbs_cmd_copyback - Simple callback that copies response back into command
22 * @priv: A pointer to &struct lbs_private structure
23 * @extra: A pointer to the original command structure for which
24 * 'resp' is a response
25 * @resp: A pointer to the command response
27 * returns: 0 on success, error on failure
29 int lbs_cmd_copyback(struct lbs_private
*priv
, unsigned long extra
,
30 struct cmd_header
*resp
)
32 struct cmd_header
*buf
= (void *)extra
;
35 copy_len
= min(le16_to_cpu(buf
->size
), le16_to_cpu(resp
->size
));
36 memcpy(buf
, resp
, copy_len
);
39 EXPORT_SYMBOL_GPL(lbs_cmd_copyback
);
42 * lbs_cmd_async_callback - Simple callback that ignores the result.
43 * Use this if you just want to send a command to the hardware, but don't
44 * care for the result.
50 * returns: 0 for success
52 static int lbs_cmd_async_callback(struct lbs_private
*priv
, unsigned long extra
,
53 struct cmd_header
*resp
)
60 * is_command_allowed_in_ps - tests if a command is allowed in Power Save mode
62 * @cmd: the command ID
64 * returns: 1 if allowed, 0 if not allowed
66 static u8
is_command_allowed_in_ps(u16 cmd
)
71 case CMD_802_11_HOST_SLEEP_CFG
:
80 * lbs_update_hw_spec - Updates the hardware details like MAC address
81 * and regulatory region
83 * @priv: A pointer to &struct lbs_private structure
85 * returns: 0 on success, error on failure
87 int lbs_update_hw_spec(struct lbs_private
*priv
)
89 struct cmd_ds_get_hw_spec cmd
;
93 lbs_deb_enter(LBS_DEB_CMD
);
95 memset(&cmd
, 0, sizeof(cmd
));
96 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
97 memcpy(cmd
.permanentaddr
, priv
->current_addr
, ETH_ALEN
);
98 ret
= lbs_cmd_with_response(priv
, CMD_GET_HW_SPEC
, &cmd
);
102 priv
->fwcapinfo
= le32_to_cpu(cmd
.fwcapinfo
);
104 /* The firmware release is in an interesting format: the patch
105 * level is in the most significant nibble ... so fix that: */
106 priv
->fwrelease
= le32_to_cpu(cmd
.fwrelease
);
107 priv
->fwrelease
= (priv
->fwrelease
<< 8) |
108 (priv
->fwrelease
>> 24 & 0xff);
110 /* Some firmware capabilities:
111 * CF card firmware 5.0.16p0: cap 0x00000303
112 * USB dongle firmware 5.110.17p2: cap 0x00000303
114 netdev_info(priv
->dev
, "%pM, fw %u.%u.%up%u, cap 0x%08x\n",
116 priv
->fwrelease
>> 24 & 0xff,
117 priv
->fwrelease
>> 16 & 0xff,
118 priv
->fwrelease
>> 8 & 0xff,
119 priv
->fwrelease
& 0xff,
121 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
122 cmd
.hwifversion
, cmd
.version
);
124 /* Clamp region code to 8-bit since FW spec indicates that it should
125 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
126 * returns non-zero high 8 bits here.
128 * Firmware version 4.0.102 used in CF8381 has region code shifted. We
129 * need to check for this problem and handle it properly.
131 if (MRVL_FW_MAJOR_REV(priv
->fwrelease
) == MRVL_FW_V4
)
132 priv
->regioncode
= (le16_to_cpu(cmd
.regioncode
) >> 8) & 0xFF;
134 priv
->regioncode
= le16_to_cpu(cmd
.regioncode
) & 0xFF;
136 for (i
= 0; i
< MRVDRV_MAX_REGION_CODE
; i
++) {
137 /* use the region code to search for the index */
138 if (priv
->regioncode
== lbs_region_code_to_index
[i
])
142 /* if it's unidentified region code, use the default (USA) */
143 if (i
>= MRVDRV_MAX_REGION_CODE
) {
144 priv
->regioncode
= 0x10;
145 netdev_info(priv
->dev
,
146 "unidentified region code; using the default (USA)\n");
149 if (priv
->current_addr
[0] == 0xff)
150 memmove(priv
->current_addr
, cmd
.permanentaddr
, ETH_ALEN
);
152 if (!priv
->copied_hwaddr
) {
153 memcpy(priv
->dev
->dev_addr
, priv
->current_addr
, ETH_ALEN
);
155 memcpy(priv
->mesh_dev
->dev_addr
,
156 priv
->current_addr
, ETH_ALEN
);
157 priv
->copied_hwaddr
= 1;
161 lbs_deb_leave(LBS_DEB_CMD
);
165 static int lbs_ret_host_sleep_cfg(struct lbs_private
*priv
, unsigned long dummy
,
166 struct cmd_header
*resp
)
168 lbs_deb_enter(LBS_DEB_CMD
);
169 if (priv
->is_host_sleep_activated
) {
170 priv
->is_host_sleep_configured
= 0;
171 if (priv
->psstate
== PS_STATE_FULL_POWER
) {
172 priv
->is_host_sleep_activated
= 0;
173 wake_up_interruptible(&priv
->host_sleep_q
);
176 priv
->is_host_sleep_configured
= 1;
178 lbs_deb_leave(LBS_DEB_CMD
);
182 int lbs_host_sleep_cfg(struct lbs_private
*priv
, uint32_t criteria
,
183 struct wol_config
*p_wol_config
)
185 struct cmd_ds_host_sleep cmd_config
;
189 * Certain firmware versions do not support EHS_REMOVE_WAKEUP command
190 * and the card will return a failure. Since we need to be
191 * able to reset the mask, in those cases we set a 0 mask instead.
193 if (criteria
== EHS_REMOVE_WAKEUP
&& !priv
->ehs_remove_supported
)
196 cmd_config
.hdr
.size
= cpu_to_le16(sizeof(cmd_config
));
197 cmd_config
.criteria
= cpu_to_le32(criteria
);
198 cmd_config
.gpio
= priv
->wol_gpio
;
199 cmd_config
.gap
= priv
->wol_gap
;
201 if (p_wol_config
!= NULL
)
202 memcpy((uint8_t *)&cmd_config
.wol_conf
, (uint8_t *)p_wol_config
,
203 sizeof(struct wol_config
));
205 cmd_config
.wol_conf
.action
= CMD_ACT_ACTION_NONE
;
207 ret
= __lbs_cmd(priv
, CMD_802_11_HOST_SLEEP_CFG
, &cmd_config
.hdr
,
208 le16_to_cpu(cmd_config
.hdr
.size
),
209 lbs_ret_host_sleep_cfg
, 0);
212 memcpy((uint8_t *) p_wol_config
,
213 (uint8_t *)&cmd_config
.wol_conf
,
214 sizeof(struct wol_config
));
216 netdev_info(priv
->dev
, "HOST_SLEEP_CFG failed %d\n", ret
);
221 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg
);
224 * lbs_set_ps_mode - Sets the Power Save mode
226 * @priv: A pointer to &struct lbs_private structure
227 * @cmd_action: The Power Save operation (PS_MODE_ACTION_ENTER_PS or
228 * PS_MODE_ACTION_EXIT_PS)
229 * @block: Whether to block on a response or not
231 * returns: 0 on success, error on failure
233 int lbs_set_ps_mode(struct lbs_private
*priv
, u16 cmd_action
, bool block
)
235 struct cmd_ds_802_11_ps_mode cmd
;
238 lbs_deb_enter(LBS_DEB_CMD
);
240 memset(&cmd
, 0, sizeof(cmd
));
241 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
242 cmd
.action
= cpu_to_le16(cmd_action
);
244 if (cmd_action
== PS_MODE_ACTION_ENTER_PS
) {
245 lbs_deb_cmd("PS_MODE: action ENTER_PS\n");
246 cmd
.multipledtim
= cpu_to_le16(1); /* Default DTIM multiple */
247 } else if (cmd_action
== PS_MODE_ACTION_EXIT_PS
) {
248 lbs_deb_cmd("PS_MODE: action EXIT_PS\n");
250 /* We don't handle CONFIRM_SLEEP here because it needs to
251 * be fastpathed to the firmware.
253 lbs_deb_cmd("PS_MODE: unknown action 0x%X\n", cmd_action
);
259 ret
= lbs_cmd_with_response(priv
, CMD_802_11_PS_MODE
, &cmd
);
261 lbs_cmd_async(priv
, CMD_802_11_PS_MODE
, &cmd
.hdr
, sizeof (cmd
));
264 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
268 int lbs_cmd_802_11_sleep_params(struct lbs_private
*priv
, uint16_t cmd_action
,
269 struct sleep_params
*sp
)
271 struct cmd_ds_802_11_sleep_params cmd
;
274 lbs_deb_enter(LBS_DEB_CMD
);
276 if (cmd_action
== CMD_ACT_GET
) {
277 memset(&cmd
, 0, sizeof(cmd
));
279 cmd
.error
= cpu_to_le16(sp
->sp_error
);
280 cmd
.offset
= cpu_to_le16(sp
->sp_offset
);
281 cmd
.stabletime
= cpu_to_le16(sp
->sp_stabletime
);
282 cmd
.calcontrol
= sp
->sp_calcontrol
;
283 cmd
.externalsleepclk
= sp
->sp_extsleepclk
;
284 cmd
.reserved
= cpu_to_le16(sp
->sp_reserved
);
286 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
287 cmd
.action
= cpu_to_le16(cmd_action
);
289 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SLEEP_PARAMS
, &cmd
);
292 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
293 "calcontrol 0x%x extsleepclk 0x%x\n",
294 le16_to_cpu(cmd
.error
), le16_to_cpu(cmd
.offset
),
295 le16_to_cpu(cmd
.stabletime
), cmd
.calcontrol
,
296 cmd
.externalsleepclk
);
298 sp
->sp_error
= le16_to_cpu(cmd
.error
);
299 sp
->sp_offset
= le16_to_cpu(cmd
.offset
);
300 sp
->sp_stabletime
= le16_to_cpu(cmd
.stabletime
);
301 sp
->sp_calcontrol
= cmd
.calcontrol
;
302 sp
->sp_extsleepclk
= cmd
.externalsleepclk
;
303 sp
->sp_reserved
= le16_to_cpu(cmd
.reserved
);
306 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
310 static int lbs_wait_for_ds_awake(struct lbs_private
*priv
)
314 lbs_deb_enter(LBS_DEB_CMD
);
316 if (priv
->is_deep_sleep
) {
317 if (!wait_event_interruptible_timeout(priv
->ds_awake_q
,
318 !priv
->is_deep_sleep
, (10 * HZ
))) {
319 netdev_err(priv
->dev
, "ds_awake_q: timer expired\n");
324 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
328 int lbs_set_deep_sleep(struct lbs_private
*priv
, int deep_sleep
)
332 lbs_deb_enter(LBS_DEB_CMD
);
335 if (priv
->is_deep_sleep
!= 1) {
336 lbs_deb_cmd("deep sleep: sleep\n");
337 BUG_ON(!priv
->enter_deep_sleep
);
338 ret
= priv
->enter_deep_sleep(priv
);
340 netif_stop_queue(priv
->dev
);
341 netif_carrier_off(priv
->dev
);
344 netdev_err(priv
->dev
, "deep sleep: already enabled\n");
347 if (priv
->is_deep_sleep
) {
348 lbs_deb_cmd("deep sleep: wakeup\n");
349 BUG_ON(!priv
->exit_deep_sleep
);
350 ret
= priv
->exit_deep_sleep(priv
);
352 ret
= lbs_wait_for_ds_awake(priv
);
354 netdev_err(priv
->dev
,
355 "deep sleep: wakeup failed\n");
360 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
364 static int lbs_ret_host_sleep_activate(struct lbs_private
*priv
,
366 struct cmd_header
*cmd
)
368 lbs_deb_enter(LBS_DEB_FW
);
369 priv
->is_host_sleep_activated
= 1;
370 wake_up_interruptible(&priv
->host_sleep_q
);
371 lbs_deb_leave(LBS_DEB_FW
);
375 int lbs_set_host_sleep(struct lbs_private
*priv
, int host_sleep
)
377 struct cmd_header cmd
;
379 uint32_t criteria
= EHS_REMOVE_WAKEUP
;
381 lbs_deb_enter(LBS_DEB_CMD
);
384 if (priv
->is_host_sleep_activated
!= 1) {
385 memset(&cmd
, 0, sizeof(cmd
));
386 ret
= lbs_host_sleep_cfg(priv
, priv
->wol_criteria
,
387 (struct wol_config
*)NULL
);
389 netdev_info(priv
->dev
,
390 "Host sleep configuration failed: %d\n",
394 if (priv
->psstate
== PS_STATE_FULL_POWER
) {
395 ret
= __lbs_cmd(priv
,
396 CMD_802_11_HOST_SLEEP_ACTIVATE
,
399 lbs_ret_host_sleep_activate
, 0);
401 netdev_info(priv
->dev
,
402 "HOST_SLEEP_ACTIVATE failed: %d\n",
406 if (!wait_event_interruptible_timeout(
408 priv
->is_host_sleep_activated
,
410 netdev_err(priv
->dev
,
411 "host_sleep_q: timer expired\n");
415 netdev_err(priv
->dev
, "host sleep: already enabled\n");
418 if (priv
->is_host_sleep_activated
)
419 ret
= lbs_host_sleep_cfg(priv
, criteria
,
420 (struct wol_config
*)NULL
);
427 * lbs_set_snmp_mib - Set an SNMP MIB value
429 * @priv: A pointer to &struct lbs_private structure
430 * @oid: The OID to set in the firmware
431 * @val: Value to set the OID to
433 * returns: 0 on success, error on failure
435 int lbs_set_snmp_mib(struct lbs_private
*priv
, u32 oid
, u16 val
)
437 struct cmd_ds_802_11_snmp_mib cmd
;
440 lbs_deb_enter(LBS_DEB_CMD
);
442 memset(&cmd
, 0, sizeof (cmd
));
443 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
444 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
445 cmd
.oid
= cpu_to_le16((u16
) oid
);
448 case SNMP_MIB_OID_BSS_TYPE
:
449 cmd
.bufsize
= cpu_to_le16(sizeof(u8
));
452 case SNMP_MIB_OID_11D_ENABLE
:
453 case SNMP_MIB_OID_FRAG_THRESHOLD
:
454 case SNMP_MIB_OID_RTS_THRESHOLD
:
455 case SNMP_MIB_OID_SHORT_RETRY_LIMIT
:
456 case SNMP_MIB_OID_LONG_RETRY_LIMIT
:
457 cmd
.bufsize
= cpu_to_le16(sizeof(u16
));
458 *((__le16
*)(&cmd
.value
)) = cpu_to_le16(val
);
461 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid
);
466 lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
467 le16_to_cpu(cmd
.oid
), le16_to_cpu(cmd
.bufsize
), val
);
469 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SNMP_MIB
, &cmd
);
472 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
477 * lbs_get_snmp_mib - Get an SNMP MIB value
479 * @priv: A pointer to &struct lbs_private structure
480 * @oid: The OID to retrieve from the firmware
481 * @out_val: Location for the returned value
483 * returns: 0 on success, error on failure
485 int lbs_get_snmp_mib(struct lbs_private
*priv
, u32 oid
, u16
*out_val
)
487 struct cmd_ds_802_11_snmp_mib cmd
;
490 lbs_deb_enter(LBS_DEB_CMD
);
492 memset(&cmd
, 0, sizeof (cmd
));
493 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
494 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
495 cmd
.oid
= cpu_to_le16(oid
);
497 ret
= lbs_cmd_with_response(priv
, CMD_802_11_SNMP_MIB
, &cmd
);
501 switch (le16_to_cpu(cmd
.bufsize
)) {
503 *out_val
= cmd
.value
[0];
506 *out_val
= le16_to_cpu(*((__le16
*)(&cmd
.value
)));
509 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
510 oid
, le16_to_cpu(cmd
.bufsize
));
515 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
520 * lbs_get_tx_power - Get the min, max, and current TX power
522 * @priv: A pointer to &struct lbs_private structure
523 * @curlevel: Current power level in dBm
524 * @minlevel: Minimum supported power level in dBm (optional)
525 * @maxlevel: Maximum supported power level in dBm (optional)
527 * returns: 0 on success, error on failure
529 int lbs_get_tx_power(struct lbs_private
*priv
, s16
*curlevel
, s16
*minlevel
,
532 struct cmd_ds_802_11_rf_tx_power cmd
;
535 lbs_deb_enter(LBS_DEB_CMD
);
537 memset(&cmd
, 0, sizeof(cmd
));
538 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
539 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
541 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_TX_POWER
, &cmd
);
543 *curlevel
= le16_to_cpu(cmd
.curlevel
);
545 *minlevel
= cmd
.minlevel
;
547 *maxlevel
= cmd
.maxlevel
;
550 lbs_deb_leave(LBS_DEB_CMD
);
555 * lbs_set_tx_power - Set the TX power
557 * @priv: A pointer to &struct lbs_private structure
558 * @dbm: The desired power level in dBm
560 * returns: 0 on success, error on failure
562 int lbs_set_tx_power(struct lbs_private
*priv
, s16 dbm
)
564 struct cmd_ds_802_11_rf_tx_power cmd
;
567 lbs_deb_enter(LBS_DEB_CMD
);
569 memset(&cmd
, 0, sizeof(cmd
));
570 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
571 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
572 cmd
.curlevel
= cpu_to_le16(dbm
);
574 lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm
);
576 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_TX_POWER
, &cmd
);
578 lbs_deb_leave(LBS_DEB_CMD
);
583 * lbs_set_monitor_mode - Enable or disable monitor mode
584 * (only implemented on OLPC usb8388 FW)
586 * @priv: A pointer to &struct lbs_private structure
587 * @enable: 1 to enable monitor mode, 0 to disable
589 * returns: 0 on success, error on failure
591 int lbs_set_monitor_mode(struct lbs_private
*priv
, int enable
)
593 struct cmd_ds_802_11_monitor_mode cmd
;
596 memset(&cmd
, 0, sizeof(cmd
));
597 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
598 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
600 cmd
.mode
= cpu_to_le16(0x1);
602 lbs_deb_cmd("SET_MONITOR_MODE: %d\n", enable
);
604 ret
= lbs_cmd_with_response(priv
, CMD_802_11_MONITOR_MODE
, &cmd
);
606 priv
->dev
->type
= enable
? ARPHRD_IEEE80211_RADIOTAP
:
610 lbs_deb_leave(LBS_DEB_CMD
);
615 * lbs_get_channel - Get the radio channel
617 * @priv: A pointer to &struct lbs_private structure
619 * returns: The channel on success, error on failure
621 static int lbs_get_channel(struct lbs_private
*priv
)
623 struct cmd_ds_802_11_rf_channel cmd
;
626 lbs_deb_enter(LBS_DEB_CMD
);
628 memset(&cmd
, 0, sizeof(cmd
));
629 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
630 cmd
.action
= cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET
);
632 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_CHANNEL
, &cmd
);
636 ret
= le16_to_cpu(cmd
.channel
);
637 lbs_deb_cmd("current radio channel is %d\n", ret
);
640 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
644 int lbs_update_channel(struct lbs_private
*priv
)
648 /* the channel in f/w could be out of sync; get the current channel */
649 lbs_deb_enter(LBS_DEB_ASSOC
);
651 ret
= lbs_get_channel(priv
);
656 lbs_deb_leave_args(LBS_DEB_ASSOC
, "ret %d", ret
);
661 * lbs_set_channel - Set the radio channel
663 * @priv: A pointer to &struct lbs_private structure
664 * @channel: The desired channel, or 0 to clear a locked channel
666 * returns: 0 on success, error on failure
668 int lbs_set_channel(struct lbs_private
*priv
, u8 channel
)
670 struct cmd_ds_802_11_rf_channel cmd
;
672 u8 old_channel
= priv
->channel
;
676 lbs_deb_enter(LBS_DEB_CMD
);
678 memset(&cmd
, 0, sizeof(cmd
));
679 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
680 cmd
.action
= cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET
);
681 cmd
.channel
= cpu_to_le16(channel
);
683 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RF_CHANNEL
, &cmd
);
687 priv
->channel
= (uint8_t) le16_to_cpu(cmd
.channel
);
688 lbs_deb_cmd("channel switch from %d to %d\n", old_channel
,
692 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
697 * lbs_get_rssi - Get current RSSI and noise floor
699 * @priv: A pointer to &struct lbs_private structure
700 * @rssi: On successful return, signal level in mBm
701 * @nf: On successful return, Noise floor
703 * returns: The channel on success, error on failure
705 int lbs_get_rssi(struct lbs_private
*priv
, s8
*rssi
, s8
*nf
)
707 struct cmd_ds_802_11_rssi cmd
;
710 lbs_deb_enter(LBS_DEB_CMD
);
712 BUG_ON(rssi
== NULL
);
715 memset(&cmd
, 0, sizeof(cmd
));
716 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
717 /* Average SNR over last 8 beacons */
718 cmd
.n_or_snr
= cpu_to_le16(8);
720 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RSSI
, &cmd
);
722 *nf
= CAL_NF(le16_to_cpu(cmd
.nf
));
723 *rssi
= CAL_RSSI(le16_to_cpu(cmd
.n_or_snr
), le16_to_cpu(cmd
.nf
));
726 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
731 * lbs_set_11d_domain_info - Send regulatory and 802.11d domain information
734 * @priv: pointer to &struct lbs_private
735 * @request: cfg80211 regulatory request structure
736 * @bands: the device's supported bands and channels
738 * returns: 0 on success, error code on failure
740 int lbs_set_11d_domain_info(struct lbs_private
*priv
,
741 struct regulatory_request
*request
,
742 struct ieee80211_supported_band
**bands
)
744 struct cmd_ds_802_11d_domain_info cmd
;
745 struct mrvl_ie_domain_param_set
*domain
= &cmd
.domain
;
746 struct ieee80211_country_ie_triplet
*t
;
747 enum ieee80211_band band
;
748 struct ieee80211_channel
*ch
;
750 u8 num_parsed_chan
= 0;
751 u8 first_channel
= 0, next_chan
= 0, max_pwr
= 0;
756 lbs_deb_enter(LBS_DEB_11D
);
758 memset(&cmd
, 0, sizeof(cmd
));
759 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
761 lbs_deb_11d("Setting country code '%c%c'\n",
762 request
->alpha2
[0], request
->alpha2
[1]);
764 domain
->header
.type
= cpu_to_le16(TLV_TYPE_DOMAIN
);
766 /* Set country code */
767 domain
->country_code
[0] = request
->alpha2
[0];
768 domain
->country_code
[1] = request
->alpha2
[1];
769 domain
->country_code
[2] = ' ';
771 /* Now set up the channel triplets; firmware is somewhat picky here
772 * and doesn't validate channel numbers and spans; hence it would
773 * interpret a triplet of (36, 4, 20) as channels 36, 37, 38, 39. Since
774 * the last 3 aren't valid channels, the driver is responsible for
775 * splitting that up into 4 triplet pairs of (36, 1, 20) + (40, 1, 20)
779 (band
< IEEE80211_NUM_BANDS
) && (num_triplet
< MAX_11D_TRIPLETS
);
786 (i
< bands
[band
]->n_channels
) && (num_triplet
< MAX_11D_TRIPLETS
);
788 ch
= &bands
[band
]->channels
[i
];
789 if (ch
->flags
& IEEE80211_CHAN_DISABLED
)
794 next_chan
= first_channel
= (u32
) ch
->hw_value
;
795 max_pwr
= ch
->max_power
;
800 if ((ch
->hw_value
== next_chan
+ 1) &&
801 (ch
->max_power
== max_pwr
)) {
802 /* Consolidate adjacent channels */
806 /* Add this triplet */
807 lbs_deb_11d("11D triplet (%d, %d, %d)\n",
808 first_channel
, num_parsed_chan
,
810 t
= &domain
->triplet
[num_triplet
];
811 t
->chans
.first_channel
= first_channel
;
812 t
->chans
.num_channels
= num_parsed_chan
;
813 t
->chans
.max_power
= max_pwr
;
820 /* Add last triplet */
821 lbs_deb_11d("11D triplet (%d, %d, %d)\n", first_channel
,
822 num_parsed_chan
, max_pwr
);
823 t
= &domain
->triplet
[num_triplet
];
824 t
->chans
.first_channel
= first_channel
;
825 t
->chans
.num_channels
= num_parsed_chan
;
826 t
->chans
.max_power
= max_pwr
;
831 lbs_deb_11d("# triplets %d\n", num_triplet
);
833 /* Set command header sizes */
834 triplet_size
= num_triplet
* sizeof(struct ieee80211_country_ie_triplet
);
835 domain
->header
.len
= cpu_to_le16(sizeof(domain
->country_code
) +
838 lbs_deb_hex(LBS_DEB_11D
, "802.11D domain param set",
839 (u8
*) &cmd
.domain
.country_code
,
840 le16_to_cpu(domain
->header
.len
));
842 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
.hdr
) +
844 sizeof(cmd
.domain
.header
) +
845 sizeof(cmd
.domain
.country_code
) +
848 ret
= lbs_cmd_with_response(priv
, CMD_802_11D_DOMAIN_INFO
, &cmd
);
850 lbs_deb_leave_args(LBS_DEB_11D
, "ret %d", ret
);
855 * lbs_get_reg - Read a MAC, Baseband, or RF register
857 * @priv: pointer to &struct lbs_private
858 * @reg: register command, one of CMD_MAC_REG_ACCESS,
859 * CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
860 * @offset: byte offset of the register to get
861 * @value: on success, the value of the register at 'offset'
863 * returns: 0 on success, error code on failure
865 int lbs_get_reg(struct lbs_private
*priv
, u16 reg
, u16 offset
, u32
*value
)
867 struct cmd_ds_reg_access cmd
;
870 lbs_deb_enter(LBS_DEB_CMD
);
872 BUG_ON(value
== NULL
);
874 memset(&cmd
, 0, sizeof(cmd
));
875 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
876 cmd
.action
= cpu_to_le16(CMD_ACT_GET
);
877 cmd
.offset
= cpu_to_le16(offset
);
879 if (reg
!= CMD_MAC_REG_ACCESS
&&
880 reg
!= CMD_BBP_REG_ACCESS
&&
881 reg
!= CMD_RF_REG_ACCESS
) {
886 ret
= lbs_cmd_with_response(priv
, reg
, &cmd
);
888 if (reg
== CMD_BBP_REG_ACCESS
|| reg
== CMD_RF_REG_ACCESS
)
889 *value
= cmd
.value
.bbp_rf
;
890 else if (reg
== CMD_MAC_REG_ACCESS
)
891 *value
= le32_to_cpu(cmd
.value
.mac
);
895 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
900 * lbs_set_reg - Write a MAC, Baseband, or RF register
902 * @priv: pointer to &struct lbs_private
903 * @reg: register command, one of CMD_MAC_REG_ACCESS,
904 * CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
905 * @offset: byte offset of the register to set
906 * @value: the value to write to the register at 'offset'
908 * returns: 0 on success, error code on failure
910 int lbs_set_reg(struct lbs_private
*priv
, u16 reg
, u16 offset
, u32 value
)
912 struct cmd_ds_reg_access cmd
;
915 lbs_deb_enter(LBS_DEB_CMD
);
917 memset(&cmd
, 0, sizeof(cmd
));
918 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
919 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
920 cmd
.offset
= cpu_to_le16(offset
);
922 if (reg
== CMD_BBP_REG_ACCESS
|| reg
== CMD_RF_REG_ACCESS
)
923 cmd
.value
.bbp_rf
= (u8
) (value
& 0xFF);
924 else if (reg
== CMD_MAC_REG_ACCESS
)
925 cmd
.value
.mac
= cpu_to_le32(value
);
931 ret
= lbs_cmd_with_response(priv
, reg
, &cmd
);
934 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
938 static void lbs_queue_cmd(struct lbs_private
*priv
,
939 struct cmd_ctrl_node
*cmdnode
)
944 lbs_deb_enter(LBS_DEB_HOST
);
947 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
950 if (!cmdnode
->cmdbuf
->size
) {
951 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
956 /* Exit_PS command needs to be queued in the header always. */
957 if (le16_to_cpu(cmdnode
->cmdbuf
->command
) == CMD_802_11_PS_MODE
) {
958 struct cmd_ds_802_11_ps_mode
*psm
= (void *) &cmdnode
->cmdbuf
;
960 if (psm
->action
== cpu_to_le16(PS_MODE_ACTION_EXIT_PS
)) {
961 if (priv
->psstate
!= PS_STATE_FULL_POWER
)
966 if (le16_to_cpu(cmdnode
->cmdbuf
->command
) == CMD_802_11_WAKEUP_CONFIRM
)
969 spin_lock_irqsave(&priv
->driver_lock
, flags
);
972 list_add_tail(&cmdnode
->list
, &priv
->cmdpendingq
);
974 list_add(&cmdnode
->list
, &priv
->cmdpendingq
);
976 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
978 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
979 le16_to_cpu(cmdnode
->cmdbuf
->command
));
982 lbs_deb_leave(LBS_DEB_HOST
);
985 static void lbs_submit_command(struct lbs_private
*priv
,
986 struct cmd_ctrl_node
*cmdnode
)
989 struct cmd_header
*cmd
;
995 lbs_deb_enter(LBS_DEB_HOST
);
997 cmd
= cmdnode
->cmdbuf
;
999 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1001 cmd
->seqnum
= cpu_to_le16(priv
->seqnum
);
1002 priv
->cur_cmd
= cmdnode
;
1003 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1005 cmdsize
= le16_to_cpu(cmd
->size
);
1006 command
= le16_to_cpu(cmd
->command
);
1008 /* These commands take longer */
1009 if (command
== CMD_802_11_SCAN
|| command
== CMD_802_11_ASSOCIATE
)
1012 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1013 command
, le16_to_cpu(cmd
->seqnum
), cmdsize
);
1014 lbs_deb_hex(LBS_DEB_CMD
, "DNLD_CMD", (void *) cmdnode
->cmdbuf
, cmdsize
);
1016 ret
= priv
->hw_host_to_card(priv
, MVMS_CMD
, (u8
*) cmd
, cmdsize
);
1019 netdev_info(priv
->dev
, "DNLD_CMD: hw_host_to_card failed: %d\n",
1021 /* Let the timer kick in and retry, and potentially reset
1022 the whole thing if the condition persists */
1026 if (command
== CMD_802_11_DEEP_SLEEP
) {
1027 if (priv
->is_auto_deep_sleep_enabled
) {
1028 priv
->wakeup_dev_required
= 1;
1029 priv
->dnld_sent
= 0;
1031 priv
->is_deep_sleep
= 1;
1032 lbs_complete_command(priv
, cmdnode
, 0);
1034 /* Setup the timer after transmit command */
1035 mod_timer(&priv
->command_timer
, jiffies
+ timeo
);
1038 lbs_deb_leave(LBS_DEB_HOST
);
1042 * This function inserts command node to cmdfreeq
1043 * after cleans it. Requires priv->driver_lock held.
1045 static void __lbs_cleanup_and_insert_cmd(struct lbs_private
*priv
,
1046 struct cmd_ctrl_node
*cmdnode
)
1048 lbs_deb_enter(LBS_DEB_HOST
);
1053 cmdnode
->callback
= NULL
;
1054 cmdnode
->callback_arg
= 0;
1056 memset(cmdnode
->cmdbuf
, 0, LBS_CMD_BUFFER_SIZE
);
1058 list_add_tail(&cmdnode
->list
, &priv
->cmdfreeq
);
1060 lbs_deb_leave(LBS_DEB_HOST
);
1063 static void lbs_cleanup_and_insert_cmd(struct lbs_private
*priv
,
1064 struct cmd_ctrl_node
*ptempcmd
)
1066 unsigned long flags
;
1068 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1069 __lbs_cleanup_and_insert_cmd(priv
, ptempcmd
);
1070 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1073 void __lbs_complete_command(struct lbs_private
*priv
, struct cmd_ctrl_node
*cmd
,
1077 * Normally, commands are removed from cmdpendingq before being
1078 * submitted. However, we can arrive here on alternative codepaths
1079 * where the command is still pending. Make sure the command really
1080 * isn't part of a list at this point.
1082 list_del_init(&cmd
->list
);
1084 cmd
->result
= result
;
1085 cmd
->cmdwaitqwoken
= 1;
1086 wake_up(&cmd
->cmdwait_q
);
1088 if (!cmd
->callback
|| cmd
->callback
== lbs_cmd_async_callback
)
1089 __lbs_cleanup_and_insert_cmd(priv
, cmd
);
1090 priv
->cur_cmd
= NULL
;
1091 wake_up_interruptible(&priv
->waitq
);
1094 void lbs_complete_command(struct lbs_private
*priv
, struct cmd_ctrl_node
*cmd
,
1097 unsigned long flags
;
1098 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1099 __lbs_complete_command(priv
, cmd
, result
);
1100 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1103 int lbs_set_radio(struct lbs_private
*priv
, u8 preamble
, u8 radio_on
)
1105 struct cmd_ds_802_11_radio_control cmd
;
1108 lbs_deb_enter(LBS_DEB_CMD
);
1110 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1111 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1113 /* Only v8 and below support setting the preamble */
1114 if (priv
->fwrelease
< 0x09000000) {
1116 case RADIO_PREAMBLE_SHORT
:
1117 case RADIO_PREAMBLE_AUTO
:
1118 case RADIO_PREAMBLE_LONG
:
1119 cmd
.control
= cpu_to_le16(preamble
);
1127 cmd
.control
|= cpu_to_le16(0x1);
1129 cmd
.control
&= cpu_to_le16(~0x1);
1130 priv
->txpower_cur
= 0;
1133 lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1134 radio_on
? "ON" : "OFF", preamble
);
1136 priv
->radio_on
= radio_on
;
1138 ret
= lbs_cmd_with_response(priv
, CMD_802_11_RADIO_CONTROL
, &cmd
);
1141 lbs_deb_leave_args(LBS_DEB_CMD
, "ret %d", ret
);
1145 void lbs_set_mac_control(struct lbs_private
*priv
)
1147 struct cmd_ds_mac_control cmd
;
1149 lbs_deb_enter(LBS_DEB_CMD
);
1151 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1152 cmd
.action
= cpu_to_le16(priv
->mac_control
);
1155 lbs_cmd_async(priv
, CMD_MAC_CONTROL
, &cmd
.hdr
, sizeof(cmd
));
1157 lbs_deb_leave(LBS_DEB_CMD
);
1161 * lbs_allocate_cmd_buffer - allocates the command buffer and links
1162 * it to command free queue
1164 * @priv: A pointer to &struct lbs_private structure
1166 * returns: 0 for success or -1 on error
1168 int lbs_allocate_cmd_buffer(struct lbs_private
*priv
)
1173 struct cmd_ctrl_node
*cmdarray
;
1175 lbs_deb_enter(LBS_DEB_HOST
);
1177 /* Allocate and initialize the command array */
1178 bufsize
= sizeof(struct cmd_ctrl_node
) * LBS_NUM_CMD_BUFFERS
;
1179 if (!(cmdarray
= kzalloc(bufsize
, GFP_KERNEL
))) {
1180 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1184 priv
->cmd_array
= cmdarray
;
1186 /* Allocate and initialize each command buffer in the command array */
1187 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1188 cmdarray
[i
].cmdbuf
= kzalloc(LBS_CMD_BUFFER_SIZE
, GFP_KERNEL
);
1189 if (!cmdarray
[i
].cmdbuf
) {
1190 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1196 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1197 init_waitqueue_head(&cmdarray
[i
].cmdwait_q
);
1198 lbs_cleanup_and_insert_cmd(priv
, &cmdarray
[i
]);
1203 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %d", ret
);
1208 * lbs_free_cmd_buffer - free the command buffer
1210 * @priv: A pointer to &struct lbs_private structure
1212 * returns: 0 for success
1214 int lbs_free_cmd_buffer(struct lbs_private
*priv
)
1216 struct cmd_ctrl_node
*cmdarray
;
1219 lbs_deb_enter(LBS_DEB_HOST
);
1221 /* need to check if cmd array is allocated or not */
1222 if (priv
->cmd_array
== NULL
) {
1223 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1227 cmdarray
= priv
->cmd_array
;
1229 /* Release shared memory buffers */
1230 for (i
= 0; i
< LBS_NUM_CMD_BUFFERS
; i
++) {
1231 if (cmdarray
[i
].cmdbuf
) {
1232 kfree(cmdarray
[i
].cmdbuf
);
1233 cmdarray
[i
].cmdbuf
= NULL
;
1237 /* Release cmd_ctrl_node */
1238 if (priv
->cmd_array
) {
1239 kfree(priv
->cmd_array
);
1240 priv
->cmd_array
= NULL
;
1244 lbs_deb_leave(LBS_DEB_HOST
);
1249 * lbs_get_free_cmd_node - gets a free command node if available in
1250 * command free queue
1252 * @priv: A pointer to &struct lbs_private structure
1254 * returns: A pointer to &cmd_ctrl_node structure on success
1257 static struct cmd_ctrl_node
*lbs_get_free_cmd_node(struct lbs_private
*priv
)
1259 struct cmd_ctrl_node
*tempnode
;
1260 unsigned long flags
;
1262 lbs_deb_enter(LBS_DEB_HOST
);
1267 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1269 if (!list_empty(&priv
->cmdfreeq
)) {
1270 tempnode
= list_first_entry(&priv
->cmdfreeq
,
1271 struct cmd_ctrl_node
, list
);
1272 list_del_init(&tempnode
->list
);
1274 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1278 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1280 lbs_deb_leave(LBS_DEB_HOST
);
1285 * lbs_execute_next_command - execute next command in command
1286 * pending queue. Will put firmware back to PS mode if applicable.
1288 * @priv: A pointer to &struct lbs_private structure
1290 * returns: 0 on success or -1 on error
1292 int lbs_execute_next_command(struct lbs_private
*priv
)
1294 struct cmd_ctrl_node
*cmdnode
= NULL
;
1295 struct cmd_header
*cmd
;
1296 unsigned long flags
;
1299 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1300 * only caller to us is lbs_thread() and we get even when a
1301 * data packet is received */
1302 lbs_deb_enter(LBS_DEB_THREAD
);
1304 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1306 if (priv
->cur_cmd
) {
1307 netdev_alert(priv
->dev
,
1308 "EXEC_NEXT_CMD: already processing command!\n");
1309 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1314 if (!list_empty(&priv
->cmdpendingq
)) {
1315 cmdnode
= list_first_entry(&priv
->cmdpendingq
,
1316 struct cmd_ctrl_node
, list
);
1319 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1322 cmd
= cmdnode
->cmdbuf
;
1324 if (is_command_allowed_in_ps(le16_to_cpu(cmd
->command
))) {
1325 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
1326 (priv
->psstate
== PS_STATE_PRE_SLEEP
)) {
1328 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1329 le16_to_cpu(cmd
->command
),
1334 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1335 "0x%04x in psstate %d\n",
1336 le16_to_cpu(cmd
->command
), priv
->psstate
);
1337 } else if (priv
->psstate
!= PS_STATE_FULL_POWER
) {
1339 * 1. Non-PS command:
1340 * Queue it. set needtowakeup to TRUE if current state
1341 * is SLEEP, otherwise call send EXIT_PS.
1342 * 2. PS command but not EXIT_PS:
1344 * 3. PS command EXIT_PS:
1345 * Set needtowakeup to TRUE if current state is SLEEP,
1346 * otherwise send this command down to firmware
1349 if (cmd
->command
!= cpu_to_le16(CMD_802_11_PS_MODE
)) {
1350 /* Prepare to send Exit PS,
1351 * this non PS command will be sent later */
1352 if ((priv
->psstate
== PS_STATE_SLEEP
)
1353 || (priv
->psstate
== PS_STATE_PRE_SLEEP
)
1355 /* w/ new scheme, it will not reach here.
1356 since it is blocked in main_thread. */
1357 priv
->needtowakeup
= 1;
1359 lbs_set_ps_mode(priv
,
1360 PS_MODE_ACTION_EXIT_PS
,
1368 * PS command. Ignore it if it is not Exit_PS.
1369 * otherwise send it down immediately.
1371 struct cmd_ds_802_11_ps_mode
*psm
= (void *)&cmd
[1];
1374 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1377 cpu_to_le16(PS_MODE_ACTION_EXIT_PS
)) {
1379 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1380 lbs_complete_command(priv
, cmdnode
, 0);
1386 if ((priv
->psstate
== PS_STATE_SLEEP
) ||
1387 (priv
->psstate
== PS_STATE_PRE_SLEEP
)) {
1389 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1390 lbs_complete_command(priv
, cmdnode
, 0);
1391 priv
->needtowakeup
= 1;
1398 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1401 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1402 list_del_init(&cmdnode
->list
);
1403 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1404 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1405 le16_to_cpu(cmd
->command
));
1406 lbs_submit_command(priv
, cmdnode
);
1409 * check if in power save mode, if yes, put the device back
1414 * This was the old code for libertas+wext. Someone that
1415 * understands this beast should re-code it in a sane way.
1417 * I actually don't understand why this is related to WPA
1418 * and to connection status, shouldn't powering should be
1419 * independ of such things?
1421 if ((priv
->psmode
!= LBS802_11POWERMODECAM
) &&
1422 (priv
->psstate
== PS_STATE_FULL_POWER
) &&
1423 ((priv
->connect_status
== LBS_CONNECTED
) ||
1424 lbs_mesh_connected(priv
))) {
1425 if (priv
->secinfo
.WPAenabled
||
1426 priv
->secinfo
.WPA2enabled
) {
1427 /* check for valid WPA group keys */
1428 if (priv
->wpa_mcast_key
.len
||
1429 priv
->wpa_unicast_key
.len
) {
1431 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1432 " go back to PS_SLEEP");
1433 lbs_set_ps_mode(priv
,
1434 PS_MODE_ACTION_ENTER_PS
,
1439 "EXEC_NEXT_CMD: cmdpendingq empty, "
1440 "go back to PS_SLEEP");
1441 lbs_set_ps_mode(priv
, PS_MODE_ACTION_ENTER_PS
,
1450 lbs_deb_leave(LBS_DEB_THREAD
);
1454 static void lbs_send_confirmsleep(struct lbs_private
*priv
)
1456 unsigned long flags
;
1459 lbs_deb_enter(LBS_DEB_HOST
);
1460 lbs_deb_hex(LBS_DEB_HOST
, "sleep confirm", (u8
*) &confirm_sleep
,
1461 sizeof(confirm_sleep
));
1463 ret
= priv
->hw_host_to_card(priv
, MVMS_CMD
, (u8
*) &confirm_sleep
,
1464 sizeof(confirm_sleep
));
1466 netdev_alert(priv
->dev
, "confirm_sleep failed\n");
1470 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1472 /* We don't get a response on the sleep-confirmation */
1473 priv
->dnld_sent
= DNLD_RES_RECEIVED
;
1475 if (priv
->is_host_sleep_configured
) {
1476 priv
->is_host_sleep_activated
= 1;
1477 wake_up_interruptible(&priv
->host_sleep_q
);
1480 /* If nothing to do, go back to sleep (?) */
1481 if (!kfifo_len(&priv
->event_fifo
) && !priv
->resp_len
[priv
->resp_idx
])
1482 priv
->psstate
= PS_STATE_SLEEP
;
1484 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1487 lbs_deb_leave(LBS_DEB_HOST
);
1491 * lbs_ps_confirm_sleep - checks condition and prepares to
1492 * send sleep confirm command to firmware if ok
1494 * @priv: A pointer to &struct lbs_private structure
1498 void lbs_ps_confirm_sleep(struct lbs_private
*priv
)
1500 unsigned long flags
=0;
1503 lbs_deb_enter(LBS_DEB_HOST
);
1505 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1506 if (priv
->dnld_sent
) {
1508 lbs_deb_host("dnld_sent was set\n");
1511 /* In-progress command? */
1512 if (priv
->cur_cmd
) {
1514 lbs_deb_host("cur_cmd was set\n");
1517 /* Pending events or command responses? */
1518 if (kfifo_len(&priv
->event_fifo
) || priv
->resp_len
[priv
->resp_idx
]) {
1520 lbs_deb_host("pending events or command responses\n");
1522 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1525 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1526 lbs_send_confirmsleep(priv
);
1528 lbs_deb_host("sleep confirm has been delayed\n");
1531 lbs_deb_leave(LBS_DEB_HOST
);
1536 * lbs_set_tpc_cfg - Configures the transmission power control functionality
1538 * @priv: A pointer to &struct lbs_private structure
1539 * @enable: Transmission power control enable
1540 * @p0: Power level when link quality is good (dBm).
1541 * @p1: Power level when link quality is fair (dBm).
1542 * @p2: Power level when link quality is poor (dBm).
1543 * @usesnr: Use Signal to Noise Ratio in TPC
1545 * returns: 0 on success
1547 int lbs_set_tpc_cfg(struct lbs_private
*priv
, int enable
, int8_t p0
, int8_t p1
,
1548 int8_t p2
, int usesnr
)
1550 struct cmd_ds_802_11_tpc_cfg cmd
;
1553 memset(&cmd
, 0, sizeof(cmd
));
1554 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1555 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1556 cmd
.enable
= !!enable
;
1557 cmd
.usesnr
= !!usesnr
;
1562 ret
= lbs_cmd_with_response(priv
, CMD_802_11_TPC_CFG
, &cmd
);
1568 * lbs_set_power_adapt_cfg - Configures the power adaptation settings
1570 * @priv: A pointer to &struct lbs_private structure
1571 * @enable: Power adaptation enable
1572 * @p0: Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1573 * @p1: Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1574 * @p2: Power level for 48 and 54 Mbps (dBm).
1576 * returns: 0 on Success
1579 int lbs_set_power_adapt_cfg(struct lbs_private
*priv
, int enable
, int8_t p0
,
1580 int8_t p1
, int8_t p2
)
1582 struct cmd_ds_802_11_pa_cfg cmd
;
1585 memset(&cmd
, 0, sizeof(cmd
));
1586 cmd
.hdr
.size
= cpu_to_le16(sizeof(cmd
));
1587 cmd
.action
= cpu_to_le16(CMD_ACT_SET
);
1588 cmd
.enable
= !!enable
;
1593 ret
= lbs_cmd_with_response(priv
, CMD_802_11_PA_CFG
, &cmd
);
1599 struct cmd_ctrl_node
*__lbs_cmd_async(struct lbs_private
*priv
,
1600 uint16_t command
, struct cmd_header
*in_cmd
, int in_cmd_size
,
1601 int (*callback
)(struct lbs_private
*, unsigned long, struct cmd_header
*),
1602 unsigned long callback_arg
)
1604 struct cmd_ctrl_node
*cmdnode
;
1606 lbs_deb_enter(LBS_DEB_HOST
);
1608 if (priv
->surpriseremoved
) {
1609 lbs_deb_host("PREP_CMD: card removed\n");
1610 cmdnode
= ERR_PTR(-ENOENT
);
1614 /* No commands are allowed in Deep Sleep until we toggle the GPIO
1615 * to wake up the card and it has signaled that it's ready.
1617 if (!priv
->is_auto_deep_sleep_enabled
) {
1618 if (priv
->is_deep_sleep
) {
1619 lbs_deb_cmd("command not allowed in deep sleep\n");
1620 cmdnode
= ERR_PTR(-EBUSY
);
1625 cmdnode
= lbs_get_free_cmd_node(priv
);
1626 if (cmdnode
== NULL
) {
1627 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1629 /* Wake up main thread to execute next command */
1630 wake_up_interruptible(&priv
->waitq
);
1631 cmdnode
= ERR_PTR(-ENOBUFS
);
1635 cmdnode
->callback
= callback
;
1636 cmdnode
->callback_arg
= callback_arg
;
1638 /* Copy the incoming command to the buffer */
1639 memcpy(cmdnode
->cmdbuf
, in_cmd
, in_cmd_size
);
1641 /* Set command, clean result, move to buffer */
1642 cmdnode
->cmdbuf
->command
= cpu_to_le16(command
);
1643 cmdnode
->cmdbuf
->size
= cpu_to_le16(in_cmd_size
);
1644 cmdnode
->cmdbuf
->result
= 0;
1646 lbs_deb_host("PREP_CMD: command 0x%04x\n", command
);
1648 cmdnode
->cmdwaitqwoken
= 0;
1649 lbs_queue_cmd(priv
, cmdnode
);
1650 wake_up_interruptible(&priv
->waitq
);
1653 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %p", cmdnode
);
1657 void lbs_cmd_async(struct lbs_private
*priv
, uint16_t command
,
1658 struct cmd_header
*in_cmd
, int in_cmd_size
)
1660 lbs_deb_enter(LBS_DEB_CMD
);
1661 __lbs_cmd_async(priv
, command
, in_cmd
, in_cmd_size
,
1662 lbs_cmd_async_callback
, 0);
1663 lbs_deb_leave(LBS_DEB_CMD
);
1666 int __lbs_cmd(struct lbs_private
*priv
, uint16_t command
,
1667 struct cmd_header
*in_cmd
, int in_cmd_size
,
1668 int (*callback
)(struct lbs_private
*, unsigned long, struct cmd_header
*),
1669 unsigned long callback_arg
)
1671 struct cmd_ctrl_node
*cmdnode
;
1672 unsigned long flags
;
1675 lbs_deb_enter(LBS_DEB_HOST
);
1677 cmdnode
= __lbs_cmd_async(priv
, command
, in_cmd
, in_cmd_size
,
1678 callback
, callback_arg
);
1679 if (IS_ERR(cmdnode
)) {
1680 ret
= PTR_ERR(cmdnode
);
1687 * Be careful with signals here. A signal may be received as the system
1688 * goes into suspend or resume. We do not want this to interrupt the
1689 * command, so we perform an uninterruptible sleep.
1691 wait_event(cmdnode
->cmdwait_q
, cmdnode
->cmdwaitqwoken
);
1693 spin_lock_irqsave(&priv
->driver_lock
, flags
);
1694 ret
= cmdnode
->result
;
1696 netdev_info(priv
->dev
, "PREP_CMD: command 0x%04x failed: %d\n",
1699 __lbs_cleanup_and_insert_cmd(priv
, cmdnode
);
1700 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
1703 lbs_deb_leave_args(LBS_DEB_HOST
, "ret %d", ret
);
1706 EXPORT_SYMBOL_GPL(__lbs_cmd
);