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>
11
#include <linux/export.h>
17
#define CAL_NF(nf) ((s32)(-(s32)(nf)))
18
#define CAL_RSSI(snr, nf) ((s32)((s32)(snr) + CAL_NF(nf)))
21
* lbs_cmd_copyback - Simple callback that copies response back into command
23
* @priv: A pointer to &struct lbs_private structure
24
* @extra: A pointer to the original command structure for which
25
* 'resp' is a response
26
* @resp: A pointer to the command response
28
* returns: 0 on success, error on failure
30
int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
31
struct cmd_header *resp)
33
struct cmd_header *buf = (void *)extra;
36
copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
37
memcpy(buf, resp, copy_len);
40
EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
43
* lbs_cmd_async_callback - Simple callback that ignores the result.
44
* Use this if you just want to send a command to the hardware, but don't
45
* care for the result.
51
* returns: 0 for success
53
static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
54
struct cmd_header *resp)
61
* is_command_allowed_in_ps - tests if a command is allowed in Power Save mode
63
* @cmd: the command ID
65
* returns: 1 if allowed, 0 if not allowed
67
static u8 is_command_allowed_in_ps(u16 cmd)
72
case CMD_802_11_HOST_SLEEP_CFG:
81
* lbs_update_hw_spec - Updates the hardware details like MAC address
82
* and regulatory region
84
* @priv: A pointer to &struct lbs_private structure
86
* returns: 0 on success, error on failure
88
int lbs_update_hw_spec(struct lbs_private *priv)
90
struct cmd_ds_get_hw_spec cmd;
94
lbs_deb_enter(LBS_DEB_CMD);
96
memset(&cmd, 0, sizeof(cmd));
97
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
98
memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
99
ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
103
priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
105
/* The firmware release is in an interesting format: the patch
106
* level is in the most significant nibble ... so fix that: */
107
priv->fwrelease = le32_to_cpu(cmd.fwrelease);
108
priv->fwrelease = (priv->fwrelease << 8) |
109
(priv->fwrelease >> 24 & 0xff);
111
/* Some firmware capabilities:
112
* CF card firmware 5.0.16p0: cap 0x00000303
113
* USB dongle firmware 5.110.17p2: cap 0x00000303
115
netdev_info(priv->dev, "%pM, fw %u.%u.%up%u, cap 0x%08x\n",
117
priv->fwrelease >> 24 & 0xff,
118
priv->fwrelease >> 16 & 0xff,
119
priv->fwrelease >> 8 & 0xff,
120
priv->fwrelease & 0xff,
122
lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
123
cmd.hwifversion, cmd.version);
125
/* Clamp region code to 8-bit since FW spec indicates that it should
126
* only ever be 8-bit, even though the field size is 16-bit. Some firmware
127
* returns non-zero high 8 bits here.
129
* Firmware version 4.0.102 used in CF8381 has region code shifted. We
130
* need to check for this problem and handle it properly.
132
if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V4)
133
priv->regioncode = (le16_to_cpu(cmd.regioncode) >> 8) & 0xFF;
135
priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
137
for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
138
/* use the region code to search for the index */
139
if (priv->regioncode == lbs_region_code_to_index[i])
143
/* if it's unidentified region code, use the default (USA) */
144
if (i >= MRVDRV_MAX_REGION_CODE) {
145
priv->regioncode = 0x10;
146
netdev_info(priv->dev,
147
"unidentified region code; using the default (USA)\n");
150
if (priv->current_addr[0] == 0xff)
151
memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
153
if (!priv->copied_hwaddr) {
154
memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
156
memcpy(priv->mesh_dev->dev_addr,
157
priv->current_addr, ETH_ALEN);
158
priv->copied_hwaddr = 1;
162
lbs_deb_leave(LBS_DEB_CMD);
166
static int lbs_ret_host_sleep_cfg(struct lbs_private *priv, unsigned long dummy,
167
struct cmd_header *resp)
169
lbs_deb_enter(LBS_DEB_CMD);
170
if (priv->is_host_sleep_activated) {
171
priv->is_host_sleep_configured = 0;
172
if (priv->psstate == PS_STATE_FULL_POWER) {
173
priv->is_host_sleep_activated = 0;
174
wake_up_interruptible(&priv->host_sleep_q);
177
priv->is_host_sleep_configured = 1;
179
lbs_deb_leave(LBS_DEB_CMD);
183
int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
184
struct wol_config *p_wol_config)
186
struct cmd_ds_host_sleep cmd_config;
190
* Certain firmware versions do not support EHS_REMOVE_WAKEUP command
191
* and the card will return a failure. Since we need to be
192
* able to reset the mask, in those cases we set a 0 mask instead.
194
if (criteria == EHS_REMOVE_WAKEUP && !priv->ehs_remove_supported)
197
cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
198
cmd_config.criteria = cpu_to_le32(criteria);
199
cmd_config.gpio = priv->wol_gpio;
200
cmd_config.gap = priv->wol_gap;
202
if (p_wol_config != NULL)
203
memcpy((uint8_t *)&cmd_config.wol_conf, (uint8_t *)p_wol_config,
204
sizeof(struct wol_config));
206
cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE;
208
ret = __lbs_cmd(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config.hdr,
209
le16_to_cpu(cmd_config.hdr.size),
210
lbs_ret_host_sleep_cfg, 0);
213
memcpy((uint8_t *) p_wol_config,
214
(uint8_t *)&cmd_config.wol_conf,
215
sizeof(struct wol_config));
217
netdev_info(priv->dev, "HOST_SLEEP_CFG failed %d\n", ret);
222
EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
225
* lbs_set_ps_mode - Sets the Power Save mode
227
* @priv: A pointer to &struct lbs_private structure
228
* @cmd_action: The Power Save operation (PS_MODE_ACTION_ENTER_PS or
229
* PS_MODE_ACTION_EXIT_PS)
230
* @block: Whether to block on a response or not
232
* returns: 0 on success, error on failure
234
int lbs_set_ps_mode(struct lbs_private *priv, u16 cmd_action, bool block)
236
struct cmd_ds_802_11_ps_mode cmd;
239
lbs_deb_enter(LBS_DEB_CMD);
241
memset(&cmd, 0, sizeof(cmd));
242
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
243
cmd.action = cpu_to_le16(cmd_action);
245
if (cmd_action == PS_MODE_ACTION_ENTER_PS) {
246
lbs_deb_cmd("PS_MODE: action ENTER_PS\n");
247
cmd.multipledtim = cpu_to_le16(1); /* Default DTIM multiple */
248
} else if (cmd_action == PS_MODE_ACTION_EXIT_PS) {
249
lbs_deb_cmd("PS_MODE: action EXIT_PS\n");
251
/* We don't handle CONFIRM_SLEEP here because it needs to
252
* be fastpathed to the firmware.
254
lbs_deb_cmd("PS_MODE: unknown action 0x%X\n", cmd_action);
260
ret = lbs_cmd_with_response(priv, CMD_802_11_PS_MODE, &cmd);
262
lbs_cmd_async(priv, CMD_802_11_PS_MODE, &cmd.hdr, sizeof (cmd));
265
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
269
int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
270
struct sleep_params *sp)
272
struct cmd_ds_802_11_sleep_params cmd;
275
lbs_deb_enter(LBS_DEB_CMD);
277
if (cmd_action == CMD_ACT_GET) {
278
memset(&cmd, 0, sizeof(cmd));
280
cmd.error = cpu_to_le16(sp->sp_error);
281
cmd.offset = cpu_to_le16(sp->sp_offset);
282
cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
283
cmd.calcontrol = sp->sp_calcontrol;
284
cmd.externalsleepclk = sp->sp_extsleepclk;
285
cmd.reserved = cpu_to_le16(sp->sp_reserved);
287
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
288
cmd.action = cpu_to_le16(cmd_action);
290
ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
293
lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
294
"calcontrol 0x%x extsleepclk 0x%x\n",
295
le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
296
le16_to_cpu(cmd.stabletime), cmd.calcontrol,
297
cmd.externalsleepclk);
299
sp->sp_error = le16_to_cpu(cmd.error);
300
sp->sp_offset = le16_to_cpu(cmd.offset);
301
sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
302
sp->sp_calcontrol = cmd.calcontrol;
303
sp->sp_extsleepclk = cmd.externalsleepclk;
304
sp->sp_reserved = le16_to_cpu(cmd.reserved);
307
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
311
static int lbs_wait_for_ds_awake(struct lbs_private *priv)
315
lbs_deb_enter(LBS_DEB_CMD);
317
if (priv->is_deep_sleep) {
318
if (!wait_event_interruptible_timeout(priv->ds_awake_q,
319
!priv->is_deep_sleep, (10 * HZ))) {
320
netdev_err(priv->dev, "ds_awake_q: timer expired\n");
325
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
329
int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep)
333
lbs_deb_enter(LBS_DEB_CMD);
336
if (priv->is_deep_sleep != 1) {
337
lbs_deb_cmd("deep sleep: sleep\n");
338
BUG_ON(!priv->enter_deep_sleep);
339
ret = priv->enter_deep_sleep(priv);
341
netif_stop_queue(priv->dev);
342
netif_carrier_off(priv->dev);
345
netdev_err(priv->dev, "deep sleep: already enabled\n");
348
if (priv->is_deep_sleep) {
349
lbs_deb_cmd("deep sleep: wakeup\n");
350
BUG_ON(!priv->exit_deep_sleep);
351
ret = priv->exit_deep_sleep(priv);
353
ret = lbs_wait_for_ds_awake(priv);
355
netdev_err(priv->dev,
356
"deep sleep: wakeup failed\n");
361
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
365
static int lbs_ret_host_sleep_activate(struct lbs_private *priv,
367
struct cmd_header *cmd)
369
lbs_deb_enter(LBS_DEB_FW);
370
priv->is_host_sleep_activated = 1;
371
wake_up_interruptible(&priv->host_sleep_q);
372
lbs_deb_leave(LBS_DEB_FW);
376
int lbs_set_host_sleep(struct lbs_private *priv, int host_sleep)
378
struct cmd_header cmd;
380
uint32_t criteria = EHS_REMOVE_WAKEUP;
382
lbs_deb_enter(LBS_DEB_CMD);
385
if (priv->is_host_sleep_activated != 1) {
386
memset(&cmd, 0, sizeof(cmd));
387
ret = lbs_host_sleep_cfg(priv, priv->wol_criteria,
388
(struct wol_config *)NULL);
390
netdev_info(priv->dev,
391
"Host sleep configuration failed: %d\n",
395
if (priv->psstate == PS_STATE_FULL_POWER) {
396
ret = __lbs_cmd(priv,
397
CMD_802_11_HOST_SLEEP_ACTIVATE,
400
lbs_ret_host_sleep_activate, 0);
402
netdev_info(priv->dev,
403
"HOST_SLEEP_ACTIVATE failed: %d\n",
407
if (!wait_event_interruptible_timeout(
409
priv->is_host_sleep_activated,
411
netdev_err(priv->dev,
412
"host_sleep_q: timer expired\n");
416
netdev_err(priv->dev, "host sleep: already enabled\n");
419
if (priv->is_host_sleep_activated)
420
ret = lbs_host_sleep_cfg(priv, criteria,
421
(struct wol_config *)NULL);
428
* lbs_set_snmp_mib - Set an SNMP MIB value
430
* @priv: A pointer to &struct lbs_private structure
431
* @oid: The OID to set in the firmware
432
* @val: Value to set the OID to
434
* returns: 0 on success, error on failure
436
int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
438
struct cmd_ds_802_11_snmp_mib cmd;
441
lbs_deb_enter(LBS_DEB_CMD);
443
memset(&cmd, 0, sizeof (cmd));
444
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
445
cmd.action = cpu_to_le16(CMD_ACT_SET);
446
cmd.oid = cpu_to_le16((u16) oid);
449
case SNMP_MIB_OID_BSS_TYPE:
450
cmd.bufsize = cpu_to_le16(sizeof(u8));
453
case SNMP_MIB_OID_11D_ENABLE:
454
case SNMP_MIB_OID_FRAG_THRESHOLD:
455
case SNMP_MIB_OID_RTS_THRESHOLD:
456
case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
457
case SNMP_MIB_OID_LONG_RETRY_LIMIT:
458
cmd.bufsize = cpu_to_le16(sizeof(u16));
459
*((__le16 *)(&cmd.value)) = cpu_to_le16(val);
462
lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
467
lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
468
le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
470
ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
473
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
478
* lbs_get_snmp_mib - Get an SNMP MIB value
480
* @priv: A pointer to &struct lbs_private structure
481
* @oid: The OID to retrieve from the firmware
482
* @out_val: Location for the returned value
484
* returns: 0 on success, error on failure
486
int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
488
struct cmd_ds_802_11_snmp_mib cmd;
491
lbs_deb_enter(LBS_DEB_CMD);
493
memset(&cmd, 0, sizeof (cmd));
494
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
495
cmd.action = cpu_to_le16(CMD_ACT_GET);
496
cmd.oid = cpu_to_le16(oid);
498
ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
502
switch (le16_to_cpu(cmd.bufsize)) {
504
*out_val = cmd.value[0];
507
*out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
510
lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
511
oid, le16_to_cpu(cmd.bufsize));
516
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
521
* lbs_get_tx_power - Get the min, max, and current TX power
523
* @priv: A pointer to &struct lbs_private structure
524
* @curlevel: Current power level in dBm
525
* @minlevel: Minimum supported power level in dBm (optional)
526
* @maxlevel: Maximum supported power level in dBm (optional)
528
* returns: 0 on success, error on failure
530
int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
533
struct cmd_ds_802_11_rf_tx_power cmd;
536
lbs_deb_enter(LBS_DEB_CMD);
538
memset(&cmd, 0, sizeof(cmd));
539
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
540
cmd.action = cpu_to_le16(CMD_ACT_GET);
542
ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
544
*curlevel = le16_to_cpu(cmd.curlevel);
546
*minlevel = cmd.minlevel;
548
*maxlevel = cmd.maxlevel;
551
lbs_deb_leave(LBS_DEB_CMD);
556
* lbs_set_tx_power - Set the TX power
558
* @priv: A pointer to &struct lbs_private structure
559
* @dbm: The desired power level in dBm
561
* returns: 0 on success, error on failure
563
int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
565
struct cmd_ds_802_11_rf_tx_power cmd;
568
lbs_deb_enter(LBS_DEB_CMD);
570
memset(&cmd, 0, sizeof(cmd));
571
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
572
cmd.action = cpu_to_le16(CMD_ACT_SET);
573
cmd.curlevel = cpu_to_le16(dbm);
575
lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
577
ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
579
lbs_deb_leave(LBS_DEB_CMD);
584
* lbs_set_monitor_mode - Enable or disable monitor mode
585
* (only implemented on OLPC usb8388 FW)
587
* @priv: A pointer to &struct lbs_private structure
588
* @enable: 1 to enable monitor mode, 0 to disable
590
* returns: 0 on success, error on failure
592
int lbs_set_monitor_mode(struct lbs_private *priv, int enable)
594
struct cmd_ds_802_11_monitor_mode cmd;
597
memset(&cmd, 0, sizeof(cmd));
598
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
599
cmd.action = cpu_to_le16(CMD_ACT_SET);
601
cmd.mode = cpu_to_le16(0x1);
603
lbs_deb_cmd("SET_MONITOR_MODE: %d\n", enable);
605
ret = lbs_cmd_with_response(priv, CMD_802_11_MONITOR_MODE, &cmd);
607
priv->dev->type = enable ? ARPHRD_IEEE80211_RADIOTAP :
611
lbs_deb_leave(LBS_DEB_CMD);
616
* lbs_get_channel - Get the radio channel
618
* @priv: A pointer to &struct lbs_private structure
620
* returns: The channel on success, error on failure
622
static int lbs_get_channel(struct lbs_private *priv)
624
struct cmd_ds_802_11_rf_channel cmd;
627
lbs_deb_enter(LBS_DEB_CMD);
629
memset(&cmd, 0, sizeof(cmd));
630
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
631
cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
633
ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
637
ret = le16_to_cpu(cmd.channel);
638
lbs_deb_cmd("current radio channel is %d\n", ret);
641
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
645
int lbs_update_channel(struct lbs_private *priv)
649
/* the channel in f/w could be out of sync; get the current channel */
650
lbs_deb_enter(LBS_DEB_ASSOC);
652
ret = lbs_get_channel(priv);
657
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
662
* lbs_set_channel - Set the radio channel
664
* @priv: A pointer to &struct lbs_private structure
665
* @channel: The desired channel, or 0 to clear a locked channel
667
* returns: 0 on success, error on failure
669
int lbs_set_channel(struct lbs_private *priv, u8 channel)
671
struct cmd_ds_802_11_rf_channel cmd;
673
u8 old_channel = priv->channel;
677
lbs_deb_enter(LBS_DEB_CMD);
679
memset(&cmd, 0, sizeof(cmd));
680
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
681
cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
682
cmd.channel = cpu_to_le16(channel);
684
ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
688
priv->channel = (uint8_t) le16_to_cpu(cmd.channel);
689
lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
693
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
698
* lbs_get_rssi - Get current RSSI and noise floor
700
* @priv: A pointer to &struct lbs_private structure
701
* @rssi: On successful return, signal level in mBm
702
* @nf: On successful return, Noise floor
704
* returns: The channel on success, error on failure
706
int lbs_get_rssi(struct lbs_private *priv, s8 *rssi, s8 *nf)
708
struct cmd_ds_802_11_rssi cmd;
711
lbs_deb_enter(LBS_DEB_CMD);
713
BUG_ON(rssi == NULL);
716
memset(&cmd, 0, sizeof(cmd));
717
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
718
/* Average SNR over last 8 beacons */
719
cmd.n_or_snr = cpu_to_le16(8);
721
ret = lbs_cmd_with_response(priv, CMD_802_11_RSSI, &cmd);
723
*nf = CAL_NF(le16_to_cpu(cmd.nf));
724
*rssi = CAL_RSSI(le16_to_cpu(cmd.n_or_snr), le16_to_cpu(cmd.nf));
727
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
732
* lbs_set_11d_domain_info - Send regulatory and 802.11d domain information
735
* @priv: pointer to &struct lbs_private
736
* @request: cfg80211 regulatory request structure
737
* @bands: the device's supported bands and channels
739
* returns: 0 on success, error code on failure
741
int lbs_set_11d_domain_info(struct lbs_private *priv,
742
struct regulatory_request *request,
743
struct ieee80211_supported_band **bands)
745
struct cmd_ds_802_11d_domain_info cmd;
746
struct mrvl_ie_domain_param_set *domain = &cmd.domain;
747
struct ieee80211_country_ie_triplet *t;
748
enum ieee80211_band band;
749
struct ieee80211_channel *ch;
751
u8 num_parsed_chan = 0;
752
u8 first_channel = 0, next_chan = 0, max_pwr = 0;
757
lbs_deb_enter(LBS_DEB_11D);
759
memset(&cmd, 0, sizeof(cmd));
760
cmd.action = cpu_to_le16(CMD_ACT_SET);
762
lbs_deb_11d("Setting country code '%c%c'\n",
763
request->alpha2[0], request->alpha2[1]);
765
domain->header.type = cpu_to_le16(TLV_TYPE_DOMAIN);
767
/* Set country code */
768
domain->country_code[0] = request->alpha2[0];
769
domain->country_code[1] = request->alpha2[1];
770
domain->country_code[2] = ' ';
772
/* Now set up the channel triplets; firmware is somewhat picky here
773
* and doesn't validate channel numbers and spans; hence it would
774
* interpret a triplet of (36, 4, 20) as channels 36, 37, 38, 39. Since
775
* the last 3 aren't valid channels, the driver is responsible for
776
* splitting that up into 4 triplet pairs of (36, 1, 20) + (40, 1, 20)
780
(band < IEEE80211_NUM_BANDS) && (num_triplet < MAX_11D_TRIPLETS);
787
(i < bands[band]->n_channels) && (num_triplet < MAX_11D_TRIPLETS);
789
ch = &bands[band]->channels[i];
790
if (ch->flags & IEEE80211_CHAN_DISABLED)
795
next_chan = first_channel = (u32) ch->hw_value;
796
max_pwr = ch->max_power;
801
if ((ch->hw_value == next_chan + 1) &&
802
(ch->max_power == max_pwr)) {
803
/* Consolidate adjacent channels */
807
/* Add this triplet */
808
lbs_deb_11d("11D triplet (%d, %d, %d)\n",
809
first_channel, num_parsed_chan,
811
t = &domain->triplet[num_triplet];
812
t->chans.first_channel = first_channel;
813
t->chans.num_channels = num_parsed_chan;
814
t->chans.max_power = max_pwr;
821
/* Add last triplet */
822
lbs_deb_11d("11D triplet (%d, %d, %d)\n", first_channel,
823
num_parsed_chan, max_pwr);
824
t = &domain->triplet[num_triplet];
825
t->chans.first_channel = first_channel;
826
t->chans.num_channels = num_parsed_chan;
827
t->chans.max_power = max_pwr;
832
lbs_deb_11d("# triplets %d\n", num_triplet);
834
/* Set command header sizes */
835
triplet_size = num_triplet * sizeof(struct ieee80211_country_ie_triplet);
836
domain->header.len = cpu_to_le16(sizeof(domain->country_code) +
839
lbs_deb_hex(LBS_DEB_11D, "802.11D domain param set",
840
(u8 *) &cmd.domain.country_code,
841
le16_to_cpu(domain->header.len));
843
cmd.hdr.size = cpu_to_le16(sizeof(cmd.hdr) +
845
sizeof(cmd.domain.header) +
846
sizeof(cmd.domain.country_code) +
849
ret = lbs_cmd_with_response(priv, CMD_802_11D_DOMAIN_INFO, &cmd);
851
lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret);
856
* lbs_get_reg - Read a MAC, Baseband, or RF register
858
* @priv: pointer to &struct lbs_private
859
* @reg: register command, one of CMD_MAC_REG_ACCESS,
860
* CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
861
* @offset: byte offset of the register to get
862
* @value: on success, the value of the register at 'offset'
864
* returns: 0 on success, error code on failure
866
int lbs_get_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 *value)
868
struct cmd_ds_reg_access cmd;
871
lbs_deb_enter(LBS_DEB_CMD);
873
BUG_ON(value == NULL);
875
memset(&cmd, 0, sizeof(cmd));
876
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
877
cmd.action = cpu_to_le16(CMD_ACT_GET);
878
cmd.offset = cpu_to_le16(offset);
880
if (reg != CMD_MAC_REG_ACCESS &&
881
reg != CMD_BBP_REG_ACCESS &&
882
reg != CMD_RF_REG_ACCESS) {
887
ret = lbs_cmd_with_response(priv, reg, &cmd);
889
if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS)
890
*value = cmd.value.bbp_rf;
891
else if (reg == CMD_MAC_REG_ACCESS)
892
*value = le32_to_cpu(cmd.value.mac);
896
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
901
* lbs_set_reg - Write a MAC, Baseband, or RF register
903
* @priv: pointer to &struct lbs_private
904
* @reg: register command, one of CMD_MAC_REG_ACCESS,
905
* CMD_BBP_REG_ACCESS, or CMD_RF_REG_ACCESS
906
* @offset: byte offset of the register to set
907
* @value: the value to write to the register at 'offset'
909
* returns: 0 on success, error code on failure
911
int lbs_set_reg(struct lbs_private *priv, u16 reg, u16 offset, u32 value)
913
struct cmd_ds_reg_access cmd;
916
lbs_deb_enter(LBS_DEB_CMD);
918
memset(&cmd, 0, sizeof(cmd));
919
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
920
cmd.action = cpu_to_le16(CMD_ACT_SET);
921
cmd.offset = cpu_to_le16(offset);
923
if (reg == CMD_BBP_REG_ACCESS || reg == CMD_RF_REG_ACCESS)
924
cmd.value.bbp_rf = (u8) (value & 0xFF);
925
else if (reg == CMD_MAC_REG_ACCESS)
926
cmd.value.mac = cpu_to_le32(value);
932
ret = lbs_cmd_with_response(priv, reg, &cmd);
935
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
939
static void lbs_queue_cmd(struct lbs_private *priv,
940
struct cmd_ctrl_node *cmdnode)
945
lbs_deb_enter(LBS_DEB_HOST);
948
lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
951
if (!cmdnode->cmdbuf->size) {
952
lbs_deb_host("DNLD_CMD: cmd size is zero\n");
957
/* Exit_PS command needs to be queued in the header always. */
958
if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
959
struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf;
961
if (psm->action == cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) {
962
if (priv->psstate != PS_STATE_FULL_POWER)
967
if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_WAKEUP_CONFIRM)
970
spin_lock_irqsave(&priv->driver_lock, flags);
973
list_add_tail(&cmdnode->list, &priv->cmdpendingq);
975
list_add(&cmdnode->list, &priv->cmdpendingq);
977
spin_unlock_irqrestore(&priv->driver_lock, flags);
979
lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
980
le16_to_cpu(cmdnode->cmdbuf->command));
983
lbs_deb_leave(LBS_DEB_HOST);
986
static void lbs_submit_command(struct lbs_private *priv,
987
struct cmd_ctrl_node *cmdnode)
990
struct cmd_header *cmd;
996
lbs_deb_enter(LBS_DEB_HOST);
998
cmd = cmdnode->cmdbuf;
1000
spin_lock_irqsave(&priv->driver_lock, flags);
1002
cmd->seqnum = cpu_to_le16(priv->seqnum);
1003
priv->cur_cmd = cmdnode;
1004
spin_unlock_irqrestore(&priv->driver_lock, flags);
1006
cmdsize = le16_to_cpu(cmd->size);
1007
command = le16_to_cpu(cmd->command);
1009
/* These commands take longer */
1010
if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE)
1013
lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1014
command, le16_to_cpu(cmd->seqnum), cmdsize);
1015
lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1017
ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1020
netdev_info(priv->dev, "DNLD_CMD: hw_host_to_card failed: %d\n",
1022
/* Let the timer kick in and retry, and potentially reset
1023
the whole thing if the condition persists */
1027
if (command == CMD_802_11_DEEP_SLEEP) {
1028
if (priv->is_auto_deep_sleep_enabled) {
1029
priv->wakeup_dev_required = 1;
1030
priv->dnld_sent = 0;
1032
priv->is_deep_sleep = 1;
1033
lbs_complete_command(priv, cmdnode, 0);
1035
/* Setup the timer after transmit command */
1036
mod_timer(&priv->command_timer, jiffies + timeo);
1039
lbs_deb_leave(LBS_DEB_HOST);
1043
* This function inserts command node to cmdfreeq
1044
* after cleans it. Requires priv->driver_lock held.
1046
static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1047
struct cmd_ctrl_node *cmdnode)
1049
lbs_deb_enter(LBS_DEB_HOST);
1054
cmdnode->callback = NULL;
1055
cmdnode->callback_arg = 0;
1057
memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1059
list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1061
lbs_deb_leave(LBS_DEB_HOST);
1064
static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1065
struct cmd_ctrl_node *ptempcmd)
1067
unsigned long flags;
1069
spin_lock_irqsave(&priv->driver_lock, flags);
1070
__lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1071
spin_unlock_irqrestore(&priv->driver_lock, flags);
1074
void __lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1078
* Normally, commands are removed from cmdpendingq before being
1079
* submitted. However, we can arrive here on alternative codepaths
1080
* where the command is still pending. Make sure the command really
1081
* isn't part of a list at this point.
1083
list_del_init(&cmd->list);
1085
cmd->result = result;
1086
cmd->cmdwaitqwoken = 1;
1087
wake_up(&cmd->cmdwait_q);
1089
if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1090
__lbs_cleanup_and_insert_cmd(priv, cmd);
1091
priv->cur_cmd = NULL;
1092
wake_up(&priv->waitq);
1095
void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1098
unsigned long flags;
1099
spin_lock_irqsave(&priv->driver_lock, flags);
1100
__lbs_complete_command(priv, cmd, result);
1101
spin_unlock_irqrestore(&priv->driver_lock, flags);
1104
int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1106
struct cmd_ds_802_11_radio_control cmd;
1109
lbs_deb_enter(LBS_DEB_CMD);
1111
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1112
cmd.action = cpu_to_le16(CMD_ACT_SET);
1114
/* Only v8 and below support setting the preamble */
1115
if (priv->fwrelease < 0x09000000) {
1117
case RADIO_PREAMBLE_SHORT:
1118
case RADIO_PREAMBLE_AUTO:
1119
case RADIO_PREAMBLE_LONG:
1120
cmd.control = cpu_to_le16(preamble);
1128
cmd.control |= cpu_to_le16(0x1);
1130
cmd.control &= cpu_to_le16(~0x1);
1131
priv->txpower_cur = 0;
1134
lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1135
radio_on ? "ON" : "OFF", preamble);
1137
priv->radio_on = radio_on;
1139
ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1142
lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1146
void lbs_set_mac_control(struct lbs_private *priv)
1148
struct cmd_ds_mac_control cmd;
1150
lbs_deb_enter(LBS_DEB_CMD);
1152
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1153
cmd.action = cpu_to_le16(priv->mac_control);
1156
lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1158
lbs_deb_leave(LBS_DEB_CMD);
1162
* lbs_allocate_cmd_buffer - allocates the command buffer and links
1163
* it to command free queue
1165
* @priv: A pointer to &struct lbs_private structure
1167
* returns: 0 for success or -1 on error
1169
int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1174
struct cmd_ctrl_node *cmdarray;
1176
lbs_deb_enter(LBS_DEB_HOST);
1178
/* Allocate and initialize the command array */
1179
bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1180
if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1181
lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1185
priv->cmd_array = cmdarray;
1187
/* Allocate and initialize each command buffer in the command array */
1188
for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1189
cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1190
if (!cmdarray[i].cmdbuf) {
1191
lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1197
for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1198
init_waitqueue_head(&cmdarray[i].cmdwait_q);
1199
lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1204
lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1209
* lbs_free_cmd_buffer - free the command buffer
1211
* @priv: A pointer to &struct lbs_private structure
1213
* returns: 0 for success
1215
int lbs_free_cmd_buffer(struct lbs_private *priv)
1217
struct cmd_ctrl_node *cmdarray;
1220
lbs_deb_enter(LBS_DEB_HOST);
1222
/* need to check if cmd array is allocated or not */
1223
if (priv->cmd_array == NULL) {
1224
lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1228
cmdarray = priv->cmd_array;
1230
/* Release shared memory buffers */
1231
for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1232
if (cmdarray[i].cmdbuf) {
1233
kfree(cmdarray[i].cmdbuf);
1234
cmdarray[i].cmdbuf = NULL;
1238
/* Release cmd_ctrl_node */
1239
if (priv->cmd_array) {
1240
kfree(priv->cmd_array);
1241
priv->cmd_array = NULL;
1245
lbs_deb_leave(LBS_DEB_HOST);
1250
* lbs_get_free_cmd_node - gets a free command node if available in
1251
* command free queue
1253
* @priv: A pointer to &struct lbs_private structure
1255
* returns: A pointer to &cmd_ctrl_node structure on success
1258
static struct cmd_ctrl_node *lbs_get_free_cmd_node(struct lbs_private *priv)
1260
struct cmd_ctrl_node *tempnode;
1261
unsigned long flags;
1263
lbs_deb_enter(LBS_DEB_HOST);
1268
spin_lock_irqsave(&priv->driver_lock, flags);
1270
if (!list_empty(&priv->cmdfreeq)) {
1271
tempnode = list_first_entry(&priv->cmdfreeq,
1272
struct cmd_ctrl_node, list);
1273
list_del_init(&tempnode->list);
1275
lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1279
spin_unlock_irqrestore(&priv->driver_lock, flags);
1281
lbs_deb_leave(LBS_DEB_HOST);
1286
* lbs_execute_next_command - execute next command in command
1287
* pending queue. Will put firmware back to PS mode if applicable.
1289
* @priv: A pointer to &struct lbs_private structure
1291
* returns: 0 on success or -1 on error
1293
int lbs_execute_next_command(struct lbs_private *priv)
1295
struct cmd_ctrl_node *cmdnode = NULL;
1296
struct cmd_header *cmd;
1297
unsigned long flags;
1300
/* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1301
* only caller to us is lbs_thread() and we get even when a
1302
* data packet is received */
1303
lbs_deb_enter(LBS_DEB_THREAD);
1305
spin_lock_irqsave(&priv->driver_lock, flags);
1307
if (priv->cur_cmd) {
1308
netdev_alert(priv->dev,
1309
"EXEC_NEXT_CMD: already processing command!\n");
1310
spin_unlock_irqrestore(&priv->driver_lock, flags);
1315
if (!list_empty(&priv->cmdpendingq)) {
1316
cmdnode = list_first_entry(&priv->cmdpendingq,
1317
struct cmd_ctrl_node, list);
1320
spin_unlock_irqrestore(&priv->driver_lock, flags);
1323
cmd = cmdnode->cmdbuf;
1325
if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1326
if ((priv->psstate == PS_STATE_SLEEP) ||
1327
(priv->psstate == PS_STATE_PRE_SLEEP)) {
1329
"EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1330
le16_to_cpu(cmd->command),
1335
lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1336
"0x%04x in psstate %d\n",
1337
le16_to_cpu(cmd->command), priv->psstate);
1338
} else if (priv->psstate != PS_STATE_FULL_POWER) {
1340
* 1. Non-PS command:
1341
* Queue it. set needtowakeup to TRUE if current state
1342
* is SLEEP, otherwise call send EXIT_PS.
1343
* 2. PS command but not EXIT_PS:
1345
* 3. PS command EXIT_PS:
1346
* Set needtowakeup to TRUE if current state is SLEEP,
1347
* otherwise send this command down to firmware
1350
if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1351
/* Prepare to send Exit PS,
1352
* this non PS command will be sent later */
1353
if ((priv->psstate == PS_STATE_SLEEP)
1354
|| (priv->psstate == PS_STATE_PRE_SLEEP)
1356
/* w/ new scheme, it will not reach here.
1357
since it is blocked in main_thread. */
1358
priv->needtowakeup = 1;
1360
lbs_set_ps_mode(priv,
1361
PS_MODE_ACTION_EXIT_PS,
1369
* PS command. Ignore it if it is not Exit_PS.
1370
* otherwise send it down immediately.
1372
struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1375
"EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1378
cpu_to_le16(PS_MODE_ACTION_EXIT_PS)) {
1380
"EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1381
lbs_complete_command(priv, cmdnode, 0);
1387
if ((priv->psstate == PS_STATE_SLEEP) ||
1388
(priv->psstate == PS_STATE_PRE_SLEEP)) {
1390
"EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1391
lbs_complete_command(priv, cmdnode, 0);
1392
priv->needtowakeup = 1;
1399
"EXEC_NEXT_CMD: sending EXIT_PS\n");
1402
spin_lock_irqsave(&priv->driver_lock, flags);
1403
list_del_init(&cmdnode->list);
1404
spin_unlock_irqrestore(&priv->driver_lock, flags);
1405
lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1406
le16_to_cpu(cmd->command));
1407
lbs_submit_command(priv, cmdnode);
1410
* check if in power save mode, if yes, put the device back
1415
* This was the old code for libertas+wext. Someone that
1416
* understands this beast should re-code it in a sane way.
1418
* I actually don't understand why this is related to WPA
1419
* and to connection status, shouldn't powering should be
1420
* independ of such things?
1422
if ((priv->psmode != LBS802_11POWERMODECAM) &&
1423
(priv->psstate == PS_STATE_FULL_POWER) &&
1424
((priv->connect_status == LBS_CONNECTED) ||
1425
lbs_mesh_connected(priv))) {
1426
if (priv->secinfo.WPAenabled ||
1427
priv->secinfo.WPA2enabled) {
1428
/* check for valid WPA group keys */
1429
if (priv->wpa_mcast_key.len ||
1430
priv->wpa_unicast_key.len) {
1432
"EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1433
" go back to PS_SLEEP");
1434
lbs_set_ps_mode(priv,
1435
PS_MODE_ACTION_ENTER_PS,
1440
"EXEC_NEXT_CMD: cmdpendingq empty, "
1441
"go back to PS_SLEEP");
1442
lbs_set_ps_mode(priv, PS_MODE_ACTION_ENTER_PS,
1451
lbs_deb_leave(LBS_DEB_THREAD);
1455
static void lbs_send_confirmsleep(struct lbs_private *priv)
1457
unsigned long flags;
1460
lbs_deb_enter(LBS_DEB_HOST);
1461
lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1462
sizeof(confirm_sleep));
1464
ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1465
sizeof(confirm_sleep));
1467
netdev_alert(priv->dev, "confirm_sleep failed\n");
1471
spin_lock_irqsave(&priv->driver_lock, flags);
1473
/* We don't get a response on the sleep-confirmation */
1474
priv->dnld_sent = DNLD_RES_RECEIVED;
1476
if (priv->is_host_sleep_configured) {
1477
priv->is_host_sleep_activated = 1;
1478
wake_up_interruptible(&priv->host_sleep_q);
1481
/* If nothing to do, go back to sleep (?) */
1482
if (!kfifo_len(&priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1483
priv->psstate = PS_STATE_SLEEP;
1485
spin_unlock_irqrestore(&priv->driver_lock, flags);
1488
lbs_deb_leave(LBS_DEB_HOST);
1492
* lbs_ps_confirm_sleep - checks condition and prepares to
1493
* send sleep confirm command to firmware if ok
1495
* @priv: A pointer to &struct lbs_private structure
1499
void lbs_ps_confirm_sleep(struct lbs_private *priv)
1501
unsigned long flags =0;
1504
lbs_deb_enter(LBS_DEB_HOST);
1506
spin_lock_irqsave(&priv->driver_lock, flags);
1507
if (priv->dnld_sent) {
1509
lbs_deb_host("dnld_sent was set\n");
1512
/* In-progress command? */
1513
if (priv->cur_cmd) {
1515
lbs_deb_host("cur_cmd was set\n");
1518
/* Pending events or command responses? */
1519
if (kfifo_len(&priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1521
lbs_deb_host("pending events or command responses\n");
1523
spin_unlock_irqrestore(&priv->driver_lock, flags);
1526
lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1527
lbs_send_confirmsleep(priv);
1529
lbs_deb_host("sleep confirm has been delayed\n");
1532
lbs_deb_leave(LBS_DEB_HOST);
1537
* lbs_set_tpc_cfg - Configures the transmission power control functionality
1539
* @priv: A pointer to &struct lbs_private structure
1540
* @enable: Transmission power control enable
1541
* @p0: Power level when link quality is good (dBm).
1542
* @p1: Power level when link quality is fair (dBm).
1543
* @p2: Power level when link quality is poor (dBm).
1544
* @usesnr: Use Signal to Noise Ratio in TPC
1546
* returns: 0 on success
1548
int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
1549
int8_t p2, int usesnr)
1551
struct cmd_ds_802_11_tpc_cfg cmd;
1554
memset(&cmd, 0, sizeof(cmd));
1555
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1556
cmd.action = cpu_to_le16(CMD_ACT_SET);
1557
cmd.enable = !!enable;
1558
cmd.usesnr = !!usesnr;
1563
ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
1569
* lbs_set_power_adapt_cfg - Configures the power adaptation settings
1571
* @priv: A pointer to &struct lbs_private structure
1572
* @enable: Power adaptation enable
1573
* @p0: Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1574
* @p1: Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1575
* @p2: Power level for 48 and 54 Mbps (dBm).
1577
* returns: 0 on Success
1580
int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
1581
int8_t p1, int8_t p2)
1583
struct cmd_ds_802_11_pa_cfg cmd;
1586
memset(&cmd, 0, sizeof(cmd));
1587
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1588
cmd.action = cpu_to_le16(CMD_ACT_SET);
1589
cmd.enable = !!enable;
1594
ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
1600
struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1601
uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1602
int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1603
unsigned long callback_arg)
1605
struct cmd_ctrl_node *cmdnode;
1607
lbs_deb_enter(LBS_DEB_HOST);
1609
if (priv->surpriseremoved) {
1610
lbs_deb_host("PREP_CMD: card removed\n");
1611
cmdnode = ERR_PTR(-ENOENT);
1615
/* No commands are allowed in Deep Sleep until we toggle the GPIO
1616
* to wake up the card and it has signaled that it's ready.
1618
if (!priv->is_auto_deep_sleep_enabled) {
1619
if (priv->is_deep_sleep) {
1620
lbs_deb_cmd("command not allowed in deep sleep\n");
1621
cmdnode = ERR_PTR(-EBUSY);
1626
cmdnode = lbs_get_free_cmd_node(priv);
1627
if (cmdnode == NULL) {
1628
lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1630
/* Wake up main thread to execute next command */
1631
wake_up(&priv->waitq);
1632
cmdnode = ERR_PTR(-ENOBUFS);
1636
cmdnode->callback = callback;
1637
cmdnode->callback_arg = callback_arg;
1639
/* Copy the incoming command to the buffer */
1640
memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1642
/* Set command, clean result, move to buffer */
1643
cmdnode->cmdbuf->command = cpu_to_le16(command);
1644
cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
1645
cmdnode->cmdbuf->result = 0;
1647
lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1649
cmdnode->cmdwaitqwoken = 0;
1650
lbs_queue_cmd(priv, cmdnode);
1651
wake_up(&priv->waitq);
1654
lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1658
void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1659
struct cmd_header *in_cmd, int in_cmd_size)
1661
lbs_deb_enter(LBS_DEB_CMD);
1662
__lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1663
lbs_cmd_async_callback, 0);
1664
lbs_deb_leave(LBS_DEB_CMD);
1667
int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1668
struct cmd_header *in_cmd, int in_cmd_size,
1669
int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1670
unsigned long callback_arg)
1672
struct cmd_ctrl_node *cmdnode;
1673
unsigned long flags;
1676
lbs_deb_enter(LBS_DEB_HOST);
1678
cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1679
callback, callback_arg);
1680
if (IS_ERR(cmdnode)) {
1681
ret = PTR_ERR(cmdnode);
1688
* Be careful with signals here. A signal may be received as the system
1689
* goes into suspend or resume. We do not want this to interrupt the
1690
* command, so we perform an uninterruptible sleep.
1692
wait_event(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
1694
spin_lock_irqsave(&priv->driver_lock, flags);
1695
ret = cmdnode->result;
1697
netdev_info(priv->dev, "PREP_CMD: command 0x%04x failed: %d\n",
1700
__lbs_cleanup_and_insert_cmd(priv, cmdnode);
1701
spin_unlock_irqrestore(&priv->driver_lock, flags);
1704
lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1707
EXPORT_SYMBOL_GPL(__lbs_cmd);