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net: convert print_mac to %pM
[deliverable/linux.git] / drivers / net / wireless / libertas / cmd.c
1 /**
2 * This file contains the handling of command.
3 * It prepares command and sends it to firmware when it is ready.
4 */
5
6 #include <net/iw_handler.h>
7 #include <net/ieee80211.h>
8 #include <linux/kfifo.h>
9 #include "host.h"
10 #include "hostcmd.h"
11 #include "decl.h"
12 #include "defs.h"
13 #include "dev.h"
14 #include "assoc.h"
15 #include "wext.h"
16 #include "cmd.h"
17
18 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
19
20
21 /**
22 * @brief Simple callback that copies response back into command
23 *
24 * @param priv A pointer to struct lbs_private structure
25 * @param extra A pointer to the original command structure for which
26 * 'resp' is a response
27 * @param resp A pointer to the command response
28 *
29 * @return 0 on success, error on failure
30 */
31 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
32 struct cmd_header *resp)
33 {
34 struct cmd_header *buf = (void *)extra;
35 uint16_t copy_len;
36
37 copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
38 memcpy(buf, resp, copy_len);
39 return 0;
40 }
41 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
42
43 /**
44 * @brief Simple callback that ignores the result. Use this if
45 * you just want to send a command to the hardware, but don't
46 * care for the result.
47 *
48 * @param priv ignored
49 * @param extra ignored
50 * @param resp ignored
51 *
52 * @return 0 for success
53 */
54 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
55 struct cmd_header *resp)
56 {
57 return 0;
58 }
59
60
61 /**
62 * @brief Checks whether a command is allowed in Power Save mode
63 *
64 * @param command the command ID
65 * @return 1 if allowed, 0 if not allowed
66 */
67 static u8 is_command_allowed_in_ps(u16 cmd)
68 {
69 switch (cmd) {
70 case CMD_802_11_RSSI:
71 return 1;
72 default:
73 break;
74 }
75 return 0;
76 }
77
78 /**
79 * @brief Updates the hardware details like MAC address and regulatory region
80 *
81 * @param priv A pointer to struct lbs_private structure
82 *
83 * @return 0 on success, error on failure
84 */
85 int lbs_update_hw_spec(struct lbs_private *priv)
86 {
87 struct cmd_ds_get_hw_spec cmd;
88 int ret = -1;
89 u32 i;
90
91 lbs_deb_enter(LBS_DEB_CMD);
92
93 memset(&cmd, 0, sizeof(cmd));
94 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
95 memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
96 ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
97 if (ret)
98 goto out;
99
100 priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
101
102 /* The firmware release is in an interesting format: the patch
103 * level is in the most significant nibble ... so fix that: */
104 priv->fwrelease = le32_to_cpu(cmd.fwrelease);
105 priv->fwrelease = (priv->fwrelease << 8) |
106 (priv->fwrelease >> 24 & 0xff);
107
108 /* Some firmware capabilities:
109 * CF card firmware 5.0.16p0: cap 0x00000303
110 * USB dongle firmware 5.110.17p2: cap 0x00000303
111 */
112 lbs_pr_info("%pM, fw %u.%u.%up%u, cap 0x%08x\n",
113 cmd.permanentaddr,
114 priv->fwrelease >> 24 & 0xff,
115 priv->fwrelease >> 16 & 0xff,
116 priv->fwrelease >> 8 & 0xff,
117 priv->fwrelease & 0xff,
118 priv->fwcapinfo);
119 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
120 cmd.hwifversion, cmd.version);
121
122 /* Clamp region code to 8-bit since FW spec indicates that it should
123 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
124 * returns non-zero high 8 bits here.
125 */
126 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
127
128 for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
129 /* use the region code to search for the index */
130 if (priv->regioncode == lbs_region_code_to_index[i])
131 break;
132 }
133
134 /* if it's unidentified region code, use the default (USA) */
135 if (i >= MRVDRV_MAX_REGION_CODE) {
136 priv->regioncode = 0x10;
137 lbs_pr_info("unidentified region code; using the default (USA)\n");
138 }
139
140 if (priv->current_addr[0] == 0xff)
141 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
142
143 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
144 if (priv->mesh_dev)
145 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
146
147 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
148 ret = -1;
149 goto out;
150 }
151
152 if (lbs_set_universaltable(priv, 0)) {
153 ret = -1;
154 goto out;
155 }
156
157 out:
158 lbs_deb_leave(LBS_DEB_CMD);
159 return ret;
160 }
161
162 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
163 {
164 struct cmd_ds_host_sleep cmd_config;
165 int ret;
166
167 cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
168 cmd_config.criteria = cpu_to_le32(criteria);
169 cmd_config.gpio = priv->wol_gpio;
170 cmd_config.gap = priv->wol_gap;
171
172 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
173 if (!ret) {
174 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
175 priv->wol_criteria = criteria;
176 } else {
177 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
178 }
179
180 return ret;
181 }
182 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
183
184 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
185 u16 cmd_action)
186 {
187 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
188
189 lbs_deb_enter(LBS_DEB_CMD);
190
191 cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
192 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
193 S_DS_GEN);
194 psm->action = cpu_to_le16(cmd_action);
195 psm->multipledtim = 0;
196 switch (cmd_action) {
197 case CMD_SUBCMD_ENTER_PS:
198 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
199
200 psm->locallisteninterval = 0;
201 psm->nullpktinterval = 0;
202 psm->multipledtim =
203 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
204 break;
205
206 case CMD_SUBCMD_EXIT_PS:
207 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
208 break;
209
210 case CMD_SUBCMD_SLEEP_CONFIRMED:
211 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
212 break;
213
214 default:
215 break;
216 }
217
218 lbs_deb_leave(LBS_DEB_CMD);
219 return 0;
220 }
221
222 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
223 uint16_t cmd_action, uint16_t *timeout)
224 {
225 struct cmd_ds_802_11_inactivity_timeout cmd;
226 int ret;
227
228 lbs_deb_enter(LBS_DEB_CMD);
229
230 cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
231 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
232
233 cmd.action = cpu_to_le16(cmd_action);
234
235 if (cmd_action == CMD_ACT_SET)
236 cmd.timeout = cpu_to_le16(*timeout);
237 else
238 cmd.timeout = 0;
239
240 ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
241
242 if (!ret)
243 *timeout = le16_to_cpu(cmd.timeout);
244
245 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
246 return 0;
247 }
248
249 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
250 struct sleep_params *sp)
251 {
252 struct cmd_ds_802_11_sleep_params cmd;
253 int ret;
254
255 lbs_deb_enter(LBS_DEB_CMD);
256
257 if (cmd_action == CMD_ACT_GET) {
258 memset(&cmd, 0, sizeof(cmd));
259 } else {
260 cmd.error = cpu_to_le16(sp->sp_error);
261 cmd.offset = cpu_to_le16(sp->sp_offset);
262 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
263 cmd.calcontrol = sp->sp_calcontrol;
264 cmd.externalsleepclk = sp->sp_extsleepclk;
265 cmd.reserved = cpu_to_le16(sp->sp_reserved);
266 }
267 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
268 cmd.action = cpu_to_le16(cmd_action);
269
270 ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
271
272 if (!ret) {
273 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
274 "calcontrol 0x%x extsleepclk 0x%x\n",
275 le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
276 le16_to_cpu(cmd.stabletime), cmd.calcontrol,
277 cmd.externalsleepclk);
278
279 sp->sp_error = le16_to_cpu(cmd.error);
280 sp->sp_offset = le16_to_cpu(cmd.offset);
281 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
282 sp->sp_calcontrol = cmd.calcontrol;
283 sp->sp_extsleepclk = cmd.externalsleepclk;
284 sp->sp_reserved = le16_to_cpu(cmd.reserved);
285 }
286
287 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
288 return 0;
289 }
290
291 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
292 struct assoc_request *assoc)
293 {
294 struct cmd_ds_802_11_set_wep cmd;
295 int ret = 0;
296
297 lbs_deb_enter(LBS_DEB_CMD);
298
299 memset(&cmd, 0, sizeof(cmd));
300 cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
301 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
302
303 cmd.action = cpu_to_le16(cmd_action);
304
305 if (cmd_action == CMD_ACT_ADD) {
306 int i;
307
308 /* default tx key index */
309 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
310 CMD_WEP_KEY_INDEX_MASK);
311
312 /* Copy key types and material to host command structure */
313 for (i = 0; i < 4; i++) {
314 struct enc_key *pkey = &assoc->wep_keys[i];
315
316 switch (pkey->len) {
317 case KEY_LEN_WEP_40:
318 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
319 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
320 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
321 break;
322 case KEY_LEN_WEP_104:
323 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
324 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
325 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
326 break;
327 case 0:
328 break;
329 default:
330 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
331 i, pkey->len);
332 ret = -1;
333 goto done;
334 break;
335 }
336 }
337 } else if (cmd_action == CMD_ACT_REMOVE) {
338 /* ACT_REMOVE clears _all_ WEP keys */
339
340 /* default tx key index */
341 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
342 CMD_WEP_KEY_INDEX_MASK);
343 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
344 }
345
346 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
347 done:
348 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
349 return ret;
350 }
351
352 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
353 uint16_t *enable)
354 {
355 struct cmd_ds_802_11_enable_rsn cmd;
356 int ret;
357
358 lbs_deb_enter(LBS_DEB_CMD);
359
360 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
361 cmd.action = cpu_to_le16(cmd_action);
362
363 if (cmd_action == CMD_ACT_GET)
364 cmd.enable = 0;
365 else {
366 if (*enable)
367 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
368 else
369 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
370 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
371 }
372
373 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
374 if (!ret && cmd_action == CMD_ACT_GET)
375 *enable = le16_to_cpu(cmd.enable);
376
377 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
378 return ret;
379 }
380
381 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
382 struct enc_key *key)
383 {
384 lbs_deb_enter(LBS_DEB_CMD);
385
386 if (key->flags & KEY_INFO_WPA_ENABLED)
387 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
388 if (key->flags & KEY_INFO_WPA_UNICAST)
389 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
390 if (key->flags & KEY_INFO_WPA_MCAST)
391 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
392
393 keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
394 keyparam->keytypeid = cpu_to_le16(key->type);
395 keyparam->keylen = cpu_to_le16(key->len);
396 memcpy(keyparam->key, key->key, key->len);
397
398 /* Length field doesn't include the {type,length} header */
399 keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
400 lbs_deb_leave(LBS_DEB_CMD);
401 }
402
403 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
404 struct assoc_request *assoc)
405 {
406 struct cmd_ds_802_11_key_material cmd;
407 int ret = 0;
408 int index = 0;
409
410 lbs_deb_enter(LBS_DEB_CMD);
411
412 cmd.action = cpu_to_le16(cmd_action);
413 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
414
415 if (cmd_action == CMD_ACT_GET) {
416 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
417 } else {
418 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
419
420 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
421 set_one_wpa_key(&cmd.keyParamSet[index],
422 &assoc->wpa_unicast_key);
423 index++;
424 }
425
426 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
427 set_one_wpa_key(&cmd.keyParamSet[index],
428 &assoc->wpa_mcast_key);
429 index++;
430 }
431
432 /* The common header and as many keys as we included */
433 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
434 keyParamSet[index]));
435 }
436 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
437 /* Copy the returned key to driver private data */
438 if (!ret && cmd_action == CMD_ACT_GET) {
439 void *buf_ptr = cmd.keyParamSet;
440 void *resp_end = &(&cmd)[1];
441
442 while (buf_ptr < resp_end) {
443 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
444 struct enc_key *key;
445 uint16_t param_set_len = le16_to_cpu(keyparam->length);
446 uint16_t key_len = le16_to_cpu(keyparam->keylen);
447 uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
448 uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
449 void *end;
450
451 end = (void *)keyparam + sizeof(keyparam->type)
452 + sizeof(keyparam->length) + param_set_len;
453
454 /* Make sure we don't access past the end of the IEs */
455 if (end > resp_end)
456 break;
457
458 if (key_flags & KEY_INFO_WPA_UNICAST)
459 key = &priv->wpa_unicast_key;
460 else if (key_flags & KEY_INFO_WPA_MCAST)
461 key = &priv->wpa_mcast_key;
462 else
463 break;
464
465 /* Copy returned key into driver */
466 memset(key, 0, sizeof(struct enc_key));
467 if (key_len > sizeof(key->key))
468 break;
469 key->type = key_type;
470 key->flags = key_flags;
471 key->len = key_len;
472 memcpy(key->key, keyparam->key, key->len);
473
474 buf_ptr = end + 1;
475 }
476 }
477
478 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
479 return ret;
480 }
481
482 /**
483 * @brief Set an SNMP MIB value
484 *
485 * @param priv A pointer to struct lbs_private structure
486 * @param oid The OID to set in the firmware
487 * @param val Value to set the OID to
488 *
489 * @return 0 on success, error on failure
490 */
491 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
492 {
493 struct cmd_ds_802_11_snmp_mib cmd;
494 int ret;
495
496 lbs_deb_enter(LBS_DEB_CMD);
497
498 memset(&cmd, 0, sizeof (cmd));
499 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
500 cmd.action = cpu_to_le16(CMD_ACT_SET);
501 cmd.oid = cpu_to_le16((u16) oid);
502
503 switch (oid) {
504 case SNMP_MIB_OID_BSS_TYPE:
505 cmd.bufsize = cpu_to_le16(sizeof(u8));
506 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
507 break;
508 case SNMP_MIB_OID_11D_ENABLE:
509 case SNMP_MIB_OID_FRAG_THRESHOLD:
510 case SNMP_MIB_OID_RTS_THRESHOLD:
511 case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
512 case SNMP_MIB_OID_LONG_RETRY_LIMIT:
513 cmd.bufsize = cpu_to_le16(sizeof(u16));
514 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
515 break;
516 default:
517 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
518 ret = -EINVAL;
519 goto out;
520 }
521
522 lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
523 le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
524
525 ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
526
527 out:
528 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
529 return ret;
530 }
531
532 /**
533 * @brief Get an SNMP MIB value
534 *
535 * @param priv A pointer to struct lbs_private structure
536 * @param oid The OID to retrieve from the firmware
537 * @param out_val Location for the returned value
538 *
539 * @return 0 on success, error on failure
540 */
541 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
542 {
543 struct cmd_ds_802_11_snmp_mib cmd;
544 int ret;
545
546 lbs_deb_enter(LBS_DEB_CMD);
547
548 memset(&cmd, 0, sizeof (cmd));
549 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
550 cmd.action = cpu_to_le16(CMD_ACT_GET);
551 cmd.oid = cpu_to_le16(oid);
552
553 ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
554 if (ret)
555 goto out;
556
557 switch (le16_to_cpu(cmd.bufsize)) {
558 case sizeof(u8):
559 if (oid == SNMP_MIB_OID_BSS_TYPE) {
560 if (cmd.value[0] == 2)
561 *out_val = IW_MODE_ADHOC;
562 else
563 *out_val = IW_MODE_INFRA;
564 } else
565 *out_val = cmd.value[0];
566 break;
567 case sizeof(u16):
568 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
569 break;
570 default:
571 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
572 oid, le16_to_cpu(cmd.bufsize));
573 break;
574 }
575
576 out:
577 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
578 return ret;
579 }
580
581 /**
582 * @brief Get the min, max, and current TX power
583 *
584 * @param priv A pointer to struct lbs_private structure
585 * @param curlevel Current power level in dBm
586 * @param minlevel Minimum supported power level in dBm (optional)
587 * @param maxlevel Maximum supported power level in dBm (optional)
588 *
589 * @return 0 on success, error on failure
590 */
591 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
592 s16 *maxlevel)
593 {
594 struct cmd_ds_802_11_rf_tx_power cmd;
595 int ret;
596
597 lbs_deb_enter(LBS_DEB_CMD);
598
599 memset(&cmd, 0, sizeof(cmd));
600 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
601 cmd.action = cpu_to_le16(CMD_ACT_GET);
602
603 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
604 if (ret == 0) {
605 *curlevel = le16_to_cpu(cmd.curlevel);
606 if (minlevel)
607 *minlevel = le16_to_cpu(cmd.minlevel);
608 if (maxlevel)
609 *maxlevel = le16_to_cpu(cmd.maxlevel);
610 }
611
612 lbs_deb_leave(LBS_DEB_CMD);
613 return ret;
614 }
615
616 /**
617 * @brief Set the TX power
618 *
619 * @param priv A pointer to struct lbs_private structure
620 * @param dbm The desired power level in dBm
621 *
622 * @return 0 on success, error on failure
623 */
624 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
625 {
626 struct cmd_ds_802_11_rf_tx_power cmd;
627 int ret;
628
629 lbs_deb_enter(LBS_DEB_CMD);
630
631 memset(&cmd, 0, sizeof(cmd));
632 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
633 cmd.action = cpu_to_le16(CMD_ACT_SET);
634 cmd.curlevel = cpu_to_le16(dbm);
635
636 lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
637
638 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
639
640 lbs_deb_leave(LBS_DEB_CMD);
641 return ret;
642 }
643
644 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
645 u16 cmd_action, void *pdata_buf)
646 {
647 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
648
649 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
650 cmd->size =
651 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
652 S_DS_GEN);
653
654 monitor->action = cpu_to_le16(cmd_action);
655 if (cmd_action == CMD_ACT_SET) {
656 monitor->mode =
657 cpu_to_le16((u16) (*(u32 *) pdata_buf));
658 }
659
660 return 0;
661 }
662
663 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
664 {
665 /* Bit Rate
666 * 15:13 Reserved
667 * 12 54 Mbps
668 * 11 48 Mbps
669 * 10 36 Mbps
670 * 9 24 Mbps
671 * 8 18 Mbps
672 * 7 12 Mbps
673 * 6 9 Mbps
674 * 5 6 Mbps
675 * 4 Reserved
676 * 3 11 Mbps
677 * 2 5.5 Mbps
678 * 1 2 Mbps
679 * 0 1 Mbps
680 **/
681
682 uint16_t ratemask;
683 int i = lbs_data_rate_to_fw_index(rate);
684 if (lower_rates_ok)
685 ratemask = (0x1fef >> (12 - i));
686 else
687 ratemask = (1 << i);
688 return cpu_to_le16(ratemask);
689 }
690
691 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
692 uint16_t cmd_action)
693 {
694 struct cmd_ds_802_11_rate_adapt_rateset cmd;
695 int ret;
696
697 lbs_deb_enter(LBS_DEB_CMD);
698
699 if (!priv->cur_rate && !priv->enablehwauto)
700 return -EINVAL;
701
702 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
703
704 cmd.action = cpu_to_le16(cmd_action);
705 cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
706 cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
707 ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
708 if (!ret && cmd_action == CMD_ACT_GET) {
709 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
710 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
711 }
712
713 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
714 return ret;
715 }
716 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
717
718 /**
719 * @brief Set the data rate
720 *
721 * @param priv A pointer to struct lbs_private structure
722 * @param rate The desired data rate, or 0 to clear a locked rate
723 *
724 * @return 0 on success, error on failure
725 */
726 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
727 {
728 struct cmd_ds_802_11_data_rate cmd;
729 int ret = 0;
730
731 lbs_deb_enter(LBS_DEB_CMD);
732
733 memset(&cmd, 0, sizeof(cmd));
734 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
735
736 if (rate > 0) {
737 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
738 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
739 if (cmd.rates[0] == 0) {
740 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
741 " 0x%02X\n", rate);
742 ret = 0;
743 goto out;
744 }
745 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
746 } else {
747 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
748 lbs_deb_cmd("DATA_RATE: setting auto\n");
749 }
750
751 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
752 if (ret)
753 goto out;
754
755 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
756
757 /* FIXME: get actual rates FW can do if this command actually returns
758 * all data rates supported.
759 */
760 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
761 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
762
763 out:
764 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
765 return ret;
766 }
767
768 /**
769 * @brief Get the radio channel
770 *
771 * @param priv A pointer to struct lbs_private structure
772 *
773 * @return The channel on success, error on failure
774 */
775 int lbs_get_channel(struct lbs_private *priv)
776 {
777 struct cmd_ds_802_11_rf_channel cmd;
778 int ret = 0;
779
780 lbs_deb_enter(LBS_DEB_CMD);
781
782 memset(&cmd, 0, sizeof(cmd));
783 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
784 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
785
786 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
787 if (ret)
788 goto out;
789
790 ret = le16_to_cpu(cmd.channel);
791 lbs_deb_cmd("current radio channel is %d\n", ret);
792
793 out:
794 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
795 return ret;
796 }
797
798 int lbs_update_channel(struct lbs_private *priv)
799 {
800 int ret;
801
802 /* the channel in f/w could be out of sync; get the current channel */
803 lbs_deb_enter(LBS_DEB_ASSOC);
804
805 ret = lbs_get_channel(priv);
806 if (ret > 0) {
807 priv->curbssparams.channel = ret;
808 ret = 0;
809 }
810 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
811 return ret;
812 }
813
814 /**
815 * @brief Set the radio channel
816 *
817 * @param priv A pointer to struct lbs_private structure
818 * @param channel The desired channel, or 0 to clear a locked channel
819 *
820 * @return 0 on success, error on failure
821 */
822 int lbs_set_channel(struct lbs_private *priv, u8 channel)
823 {
824 struct cmd_ds_802_11_rf_channel cmd;
825 #ifdef DEBUG
826 u8 old_channel = priv->curbssparams.channel;
827 #endif
828 int ret = 0;
829
830 lbs_deb_enter(LBS_DEB_CMD);
831
832 memset(&cmd, 0, sizeof(cmd));
833 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
834 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
835 cmd.channel = cpu_to_le16(channel);
836
837 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
838 if (ret)
839 goto out;
840
841 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
842 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
843 priv->curbssparams.channel);
844
845 out:
846 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
847 return ret;
848 }
849
850 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
851 struct cmd_ds_command *cmd)
852 {
853
854 lbs_deb_enter(LBS_DEB_CMD);
855 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
856 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
857 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
858
859 /* reset Beacon SNR/NF/RSSI values */
860 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
861 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
862 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
863 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
864 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
865 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
866
867 lbs_deb_leave(LBS_DEB_CMD);
868 return 0;
869 }
870
871 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
872 u8 cmd_action, void *pdata_buf)
873 {
874 struct lbs_offset_value *offval;
875
876 lbs_deb_enter(LBS_DEB_CMD);
877
878 offval = (struct lbs_offset_value *)pdata_buf;
879
880 switch (le16_to_cpu(cmdptr->command)) {
881 case CMD_MAC_REG_ACCESS:
882 {
883 struct cmd_ds_mac_reg_access *macreg;
884
885 cmdptr->size =
886 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
887 + S_DS_GEN);
888 macreg =
889 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
890 macreg;
891
892 macreg->action = cpu_to_le16(cmd_action);
893 macreg->offset = cpu_to_le16((u16) offval->offset);
894 macreg->value = cpu_to_le32(offval->value);
895
896 break;
897 }
898
899 case CMD_BBP_REG_ACCESS:
900 {
901 struct cmd_ds_bbp_reg_access *bbpreg;
902
903 cmdptr->size =
904 cpu_to_le16(sizeof
905 (struct cmd_ds_bbp_reg_access)
906 + S_DS_GEN);
907 bbpreg =
908 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
909 bbpreg;
910
911 bbpreg->action = cpu_to_le16(cmd_action);
912 bbpreg->offset = cpu_to_le16((u16) offval->offset);
913 bbpreg->value = (u8) offval->value;
914
915 break;
916 }
917
918 case CMD_RF_REG_ACCESS:
919 {
920 struct cmd_ds_rf_reg_access *rfreg;
921
922 cmdptr->size =
923 cpu_to_le16(sizeof
924 (struct cmd_ds_rf_reg_access) +
925 S_DS_GEN);
926 rfreg =
927 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
928 rfreg;
929
930 rfreg->action = cpu_to_le16(cmd_action);
931 rfreg->offset = cpu_to_le16((u16) offval->offset);
932 rfreg->value = (u8) offval->value;
933
934 break;
935 }
936
937 default:
938 break;
939 }
940
941 lbs_deb_leave(LBS_DEB_CMD);
942 return 0;
943 }
944
945 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
946 u16 cmd_action, void *pdata_buf)
947 {
948 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
949 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
950
951 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
952 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
953 cmd->result = 0;
954 bt_access->action = cpu_to_le16(cmd_action);
955
956 switch (cmd_action) {
957 case CMD_ACT_BT_ACCESS_ADD:
958 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
959 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
960 break;
961 case CMD_ACT_BT_ACCESS_DEL:
962 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
963 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
964 break;
965 case CMD_ACT_BT_ACCESS_LIST:
966 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
967 break;
968 case CMD_ACT_BT_ACCESS_RESET:
969 break;
970 case CMD_ACT_BT_ACCESS_SET_INVERT:
971 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
972 break;
973 case CMD_ACT_BT_ACCESS_GET_INVERT:
974 break;
975 default:
976 break;
977 }
978 lbs_deb_leave(LBS_DEB_CMD);
979 return 0;
980 }
981
982 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
983 u16 cmd_action, void *pdata_buf)
984 {
985 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
986 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
987
988 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
989 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
990 cmd->result = 0;
991
992 if (pdata_buf)
993 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
994 else
995 memset(fwt_access, 0, sizeof(*fwt_access));
996
997 fwt_access->action = cpu_to_le16(cmd_action);
998
999 lbs_deb_leave(LBS_DEB_CMD);
1000 return 0;
1001 }
1002
1003 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1004 struct cmd_ds_mesh_access *cmd)
1005 {
1006 int ret;
1007
1008 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1009
1010 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1011 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1012 cmd->hdr.result = 0;
1013
1014 cmd->action = cpu_to_le16(cmd_action);
1015
1016 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1017
1018 lbs_deb_leave(LBS_DEB_CMD);
1019 return ret;
1020 }
1021
1022 static int __lbs_mesh_config_send(struct lbs_private *priv,
1023 struct cmd_ds_mesh_config *cmd,
1024 uint16_t action, uint16_t type)
1025 {
1026 int ret;
1027
1028 lbs_deb_enter(LBS_DEB_CMD);
1029
1030 cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1031 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1032 cmd->hdr.result = 0;
1033
1034 cmd->type = cpu_to_le16(type);
1035 cmd->action = cpu_to_le16(action);
1036
1037 ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1038
1039 lbs_deb_leave(LBS_DEB_CMD);
1040 return ret;
1041 }
1042
1043 int lbs_mesh_config_send(struct lbs_private *priv,
1044 struct cmd_ds_mesh_config *cmd,
1045 uint16_t action, uint16_t type)
1046 {
1047 int ret;
1048
1049 if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1050 return -EOPNOTSUPP;
1051
1052 ret = __lbs_mesh_config_send(priv, cmd, action, type);
1053 return ret;
1054 }
1055
1056 /* This function is the CMD_MESH_CONFIG legacy function. It only handles the
1057 * START and STOP actions. The extended actions supported by CMD_MESH_CONFIG
1058 * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1059 * lbs_mesh_config_send.
1060 */
1061 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1062 {
1063 struct cmd_ds_mesh_config cmd;
1064 struct mrvl_meshie *ie;
1065
1066 memset(&cmd, 0, sizeof(cmd));
1067 cmd.channel = cpu_to_le16(chan);
1068 ie = (struct mrvl_meshie *)cmd.data;
1069
1070 switch (action) {
1071 case CMD_ACT_MESH_CONFIG_START:
1072 ie->hdr.id = MFIE_TYPE_GENERIC;
1073 ie->val.oui[0] = 0x00;
1074 ie->val.oui[1] = 0x50;
1075 ie->val.oui[2] = 0x43;
1076 ie->val.type = MARVELL_MESH_IE_TYPE;
1077 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1078 ie->val.version = MARVELL_MESH_IE_VERSION;
1079 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1080 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1081 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1082 ie->val.mesh_id_len = priv->mesh_ssid_len;
1083 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1084 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1085 IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1086 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1087 break;
1088 case CMD_ACT_MESH_CONFIG_STOP:
1089 break;
1090 default:
1091 return -1;
1092 }
1093 lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1094 action, priv->mesh_tlv, chan,
1095 escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1096
1097 return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1098 }
1099
1100 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1101 struct cmd_ds_command *cmd,
1102 u16 cmd_action)
1103 {
1104 struct cmd_ds_802_11_beacon_control
1105 *bcn_ctrl = &cmd->params.bcn_ctrl;
1106
1107 lbs_deb_enter(LBS_DEB_CMD);
1108 cmd->size =
1109 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1110 + S_DS_GEN);
1111 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1112
1113 bcn_ctrl->action = cpu_to_le16(cmd_action);
1114 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1115 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1116
1117 lbs_deb_leave(LBS_DEB_CMD);
1118 return 0;
1119 }
1120
1121 static void lbs_queue_cmd(struct lbs_private *priv,
1122 struct cmd_ctrl_node *cmdnode)
1123 {
1124 unsigned long flags;
1125 int addtail = 1;
1126
1127 lbs_deb_enter(LBS_DEB_HOST);
1128
1129 if (!cmdnode) {
1130 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1131 goto done;
1132 }
1133 if (!cmdnode->cmdbuf->size) {
1134 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1135 goto done;
1136 }
1137 cmdnode->result = 0;
1138
1139 /* Exit_PS command needs to be queued in the header always. */
1140 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1141 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1142
1143 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1144 if (priv->psstate != PS_STATE_FULL_POWER)
1145 addtail = 0;
1146 }
1147 }
1148
1149 spin_lock_irqsave(&priv->driver_lock, flags);
1150
1151 if (addtail)
1152 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1153 else
1154 list_add(&cmdnode->list, &priv->cmdpendingq);
1155
1156 spin_unlock_irqrestore(&priv->driver_lock, flags);
1157
1158 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1159 le16_to_cpu(cmdnode->cmdbuf->command));
1160
1161 done:
1162 lbs_deb_leave(LBS_DEB_HOST);
1163 }
1164
1165 static void lbs_submit_command(struct lbs_private *priv,
1166 struct cmd_ctrl_node *cmdnode)
1167 {
1168 unsigned long flags;
1169 struct cmd_header *cmd;
1170 uint16_t cmdsize;
1171 uint16_t command;
1172 int timeo = 3 * HZ;
1173 int ret;
1174
1175 lbs_deb_enter(LBS_DEB_HOST);
1176
1177 cmd = cmdnode->cmdbuf;
1178
1179 spin_lock_irqsave(&priv->driver_lock, flags);
1180 priv->cur_cmd = cmdnode;
1181 priv->cur_cmd_retcode = 0;
1182 spin_unlock_irqrestore(&priv->driver_lock, flags);
1183
1184 cmdsize = le16_to_cpu(cmd->size);
1185 command = le16_to_cpu(cmd->command);
1186
1187 /* These commands take longer */
1188 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1189 command == CMD_802_11_AUTHENTICATE)
1190 timeo = 5 * HZ;
1191
1192 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1193 command, le16_to_cpu(cmd->seqnum), cmdsize);
1194 lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1195
1196 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1197
1198 if (ret) {
1199 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1200 /* Let the timer kick in and retry, and potentially reset
1201 the whole thing if the condition persists */
1202 timeo = HZ/4;
1203 }
1204
1205 /* Setup the timer after transmit command */
1206 mod_timer(&priv->command_timer, jiffies + timeo);
1207
1208 lbs_deb_leave(LBS_DEB_HOST);
1209 }
1210
1211 /**
1212 * This function inserts command node to cmdfreeq
1213 * after cleans it. Requires priv->driver_lock held.
1214 */
1215 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1216 struct cmd_ctrl_node *cmdnode)
1217 {
1218 lbs_deb_enter(LBS_DEB_HOST);
1219
1220 if (!cmdnode)
1221 goto out;
1222
1223 cmdnode->callback = NULL;
1224 cmdnode->callback_arg = 0;
1225
1226 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1227
1228 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1229 out:
1230 lbs_deb_leave(LBS_DEB_HOST);
1231 }
1232
1233 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1234 struct cmd_ctrl_node *ptempcmd)
1235 {
1236 unsigned long flags;
1237
1238 spin_lock_irqsave(&priv->driver_lock, flags);
1239 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1240 spin_unlock_irqrestore(&priv->driver_lock, flags);
1241 }
1242
1243 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1244 int result)
1245 {
1246 if (cmd == priv->cur_cmd)
1247 priv->cur_cmd_retcode = result;
1248
1249 cmd->result = result;
1250 cmd->cmdwaitqwoken = 1;
1251 wake_up_interruptible(&cmd->cmdwait_q);
1252
1253 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1254 __lbs_cleanup_and_insert_cmd(priv, cmd);
1255 priv->cur_cmd = NULL;
1256 }
1257
1258 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1259 {
1260 struct cmd_ds_802_11_radio_control cmd;
1261 int ret = -EINVAL;
1262
1263 lbs_deb_enter(LBS_DEB_CMD);
1264
1265 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1266 cmd.action = cpu_to_le16(CMD_ACT_SET);
1267
1268 /* Only v8 and below support setting the preamble */
1269 if (priv->fwrelease < 0x09000000) {
1270 switch (preamble) {
1271 case RADIO_PREAMBLE_SHORT:
1272 if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1273 goto out;
1274 /* Fall through */
1275 case RADIO_PREAMBLE_AUTO:
1276 case RADIO_PREAMBLE_LONG:
1277 cmd.control = cpu_to_le16(preamble);
1278 break;
1279 default:
1280 goto out;
1281 }
1282 }
1283
1284 if (radio_on)
1285 cmd.control |= cpu_to_le16(0x1);
1286 else {
1287 cmd.control &= cpu_to_le16(~0x1);
1288 priv->txpower_cur = 0;
1289 }
1290
1291 lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1292 radio_on ? "ON" : "OFF", preamble);
1293
1294 priv->radio_on = radio_on;
1295
1296 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1297
1298 out:
1299 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1300 return ret;
1301 }
1302
1303 void lbs_set_mac_control(struct lbs_private *priv)
1304 {
1305 struct cmd_ds_mac_control cmd;
1306
1307 lbs_deb_enter(LBS_DEB_CMD);
1308
1309 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1310 cmd.action = cpu_to_le16(priv->mac_control);
1311 cmd.reserved = 0;
1312
1313 lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1314
1315 lbs_deb_leave(LBS_DEB_CMD);
1316 }
1317
1318 /**
1319 * @brief This function prepare the command before send to firmware.
1320 *
1321 * @param priv A pointer to struct lbs_private structure
1322 * @param cmd_no command number
1323 * @param cmd_action command action: GET or SET
1324 * @param wait_option wait option: wait response or not
1325 * @param cmd_oid cmd oid: treated as sub command
1326 * @param pdata_buf A pointer to informaion buffer
1327 * @return 0 or -1
1328 */
1329 int lbs_prepare_and_send_command(struct lbs_private *priv,
1330 u16 cmd_no,
1331 u16 cmd_action,
1332 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1333 {
1334 int ret = 0;
1335 struct cmd_ctrl_node *cmdnode;
1336 struct cmd_ds_command *cmdptr;
1337 unsigned long flags;
1338
1339 lbs_deb_enter(LBS_DEB_HOST);
1340
1341 if (!priv) {
1342 lbs_deb_host("PREP_CMD: priv is NULL\n");
1343 ret = -1;
1344 goto done;
1345 }
1346
1347 if (priv->surpriseremoved) {
1348 lbs_deb_host("PREP_CMD: card removed\n");
1349 ret = -1;
1350 goto done;
1351 }
1352
1353 cmdnode = lbs_get_cmd_ctrl_node(priv);
1354
1355 if (cmdnode == NULL) {
1356 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1357
1358 /* Wake up main thread to execute next command */
1359 wake_up_interruptible(&priv->waitq);
1360 ret = -1;
1361 goto done;
1362 }
1363
1364 cmdnode->callback = NULL;
1365 cmdnode->callback_arg = (unsigned long)pdata_buf;
1366
1367 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1368
1369 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1370
1371 /* Set sequence number, command and INT option */
1372 priv->seqnum++;
1373 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1374
1375 cmdptr->command = cpu_to_le16(cmd_no);
1376 cmdptr->result = 0;
1377
1378 switch (cmd_no) {
1379 case CMD_802_11_PS_MODE:
1380 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1381 break;
1382
1383 case CMD_802_11_ASSOCIATE:
1384 case CMD_802_11_REASSOCIATE:
1385 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1386 break;
1387
1388 case CMD_802_11_AUTHENTICATE:
1389 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1390 break;
1391
1392 case CMD_MAC_REG_ACCESS:
1393 case CMD_BBP_REG_ACCESS:
1394 case CMD_RF_REG_ACCESS:
1395 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1396 break;
1397
1398 case CMD_802_11_MONITOR_MODE:
1399 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1400 cmd_action, pdata_buf);
1401 break;
1402
1403 case CMD_802_11_RSSI:
1404 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1405 break;
1406
1407 case CMD_802_11_SET_AFC:
1408 case CMD_802_11_GET_AFC:
1409
1410 cmdptr->command = cpu_to_le16(cmd_no);
1411 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1412 S_DS_GEN);
1413
1414 memmove(&cmdptr->params.afc,
1415 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1416
1417 ret = 0;
1418 goto done;
1419
1420 case CMD_802_11D_DOMAIN_INFO:
1421 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1422 cmd_no, cmd_action);
1423 break;
1424
1425 case CMD_802_11_TPC_CFG:
1426 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1427 cmdptr->size =
1428 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1429 S_DS_GEN);
1430
1431 memmove(&cmdptr->params.tpccfg,
1432 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1433
1434 ret = 0;
1435 break;
1436 case CMD_802_11_LED_GPIO_CTRL:
1437 {
1438 struct mrvlietypes_ledgpio *gpio =
1439 (struct mrvlietypes_ledgpio*)
1440 cmdptr->params.ledgpio.data;
1441
1442 memmove(&cmdptr->params.ledgpio,
1443 pdata_buf,
1444 sizeof(struct cmd_ds_802_11_led_ctrl));
1445
1446 cmdptr->command =
1447 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1448
1449 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1450 cmdptr->size =
1451 cpu_to_le16(le16_to_cpu(gpio->header.len)
1452 + S_DS_GEN
1453 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1454 gpio->header.len = gpio->header.len;
1455
1456 ret = 0;
1457 break;
1458 }
1459
1460 case CMD_BT_ACCESS:
1461 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1462 break;
1463
1464 case CMD_FWT_ACCESS:
1465 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1466 break;
1467
1468 case CMD_GET_TSF:
1469 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1470 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1471 S_DS_GEN);
1472 ret = 0;
1473 break;
1474 case CMD_802_11_BEACON_CTRL:
1475 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1476 break;
1477 default:
1478 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1479 ret = -1;
1480 break;
1481 }
1482
1483 /* return error, since the command preparation failed */
1484 if (ret != 0) {
1485 lbs_deb_host("PREP_CMD: command preparation failed\n");
1486 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1487 ret = -1;
1488 goto done;
1489 }
1490
1491 cmdnode->cmdwaitqwoken = 0;
1492
1493 lbs_queue_cmd(priv, cmdnode);
1494 wake_up_interruptible(&priv->waitq);
1495
1496 if (wait_option & CMD_OPTION_WAITFORRSP) {
1497 lbs_deb_host("PREP_CMD: wait for response\n");
1498 might_sleep();
1499 wait_event_interruptible(cmdnode->cmdwait_q,
1500 cmdnode->cmdwaitqwoken);
1501 }
1502
1503 spin_lock_irqsave(&priv->driver_lock, flags);
1504 if (priv->cur_cmd_retcode) {
1505 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1506 priv->cur_cmd_retcode);
1507 priv->cur_cmd_retcode = 0;
1508 ret = -1;
1509 }
1510 spin_unlock_irqrestore(&priv->driver_lock, flags);
1511
1512 done:
1513 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1514 return ret;
1515 }
1516
1517 /**
1518 * @brief This function allocates the command buffer and link
1519 * it to command free queue.
1520 *
1521 * @param priv A pointer to struct lbs_private structure
1522 * @return 0 or -1
1523 */
1524 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1525 {
1526 int ret = 0;
1527 u32 bufsize;
1528 u32 i;
1529 struct cmd_ctrl_node *cmdarray;
1530
1531 lbs_deb_enter(LBS_DEB_HOST);
1532
1533 /* Allocate and initialize the command array */
1534 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1535 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1536 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1537 ret = -1;
1538 goto done;
1539 }
1540 priv->cmd_array = cmdarray;
1541
1542 /* Allocate and initialize each command buffer in the command array */
1543 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1544 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1545 if (!cmdarray[i].cmdbuf) {
1546 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1547 ret = -1;
1548 goto done;
1549 }
1550 }
1551
1552 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1553 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1554 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1555 }
1556 ret = 0;
1557
1558 done:
1559 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1560 return ret;
1561 }
1562
1563 /**
1564 * @brief This function frees the command buffer.
1565 *
1566 * @param priv A pointer to struct lbs_private structure
1567 * @return 0 or -1
1568 */
1569 int lbs_free_cmd_buffer(struct lbs_private *priv)
1570 {
1571 struct cmd_ctrl_node *cmdarray;
1572 unsigned int i;
1573
1574 lbs_deb_enter(LBS_DEB_HOST);
1575
1576 /* need to check if cmd array is allocated or not */
1577 if (priv->cmd_array == NULL) {
1578 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1579 goto done;
1580 }
1581
1582 cmdarray = priv->cmd_array;
1583
1584 /* Release shared memory buffers */
1585 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1586 if (cmdarray[i].cmdbuf) {
1587 kfree(cmdarray[i].cmdbuf);
1588 cmdarray[i].cmdbuf = NULL;
1589 }
1590 }
1591
1592 /* Release cmd_ctrl_node */
1593 if (priv->cmd_array) {
1594 kfree(priv->cmd_array);
1595 priv->cmd_array = NULL;
1596 }
1597
1598 done:
1599 lbs_deb_leave(LBS_DEB_HOST);
1600 return 0;
1601 }
1602
1603 /**
1604 * @brief This function gets a free command node if available in
1605 * command free queue.
1606 *
1607 * @param priv A pointer to struct lbs_private structure
1608 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1609 */
1610 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1611 {
1612 struct cmd_ctrl_node *tempnode;
1613 unsigned long flags;
1614
1615 lbs_deb_enter(LBS_DEB_HOST);
1616
1617 if (!priv)
1618 return NULL;
1619
1620 spin_lock_irqsave(&priv->driver_lock, flags);
1621
1622 if (!list_empty(&priv->cmdfreeq)) {
1623 tempnode = list_first_entry(&priv->cmdfreeq,
1624 struct cmd_ctrl_node, list);
1625 list_del(&tempnode->list);
1626 } else {
1627 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1628 tempnode = NULL;
1629 }
1630
1631 spin_unlock_irqrestore(&priv->driver_lock, flags);
1632
1633 lbs_deb_leave(LBS_DEB_HOST);
1634 return tempnode;
1635 }
1636
1637 /**
1638 * @brief This function executes next command in command
1639 * pending queue. It will put fimware back to PS mode
1640 * if applicable.
1641 *
1642 * @param priv A pointer to struct lbs_private structure
1643 * @return 0 or -1
1644 */
1645 int lbs_execute_next_command(struct lbs_private *priv)
1646 {
1647 struct cmd_ctrl_node *cmdnode = NULL;
1648 struct cmd_header *cmd;
1649 unsigned long flags;
1650 int ret = 0;
1651
1652 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1653 * only caller to us is lbs_thread() and we get even when a
1654 * data packet is received */
1655 lbs_deb_enter(LBS_DEB_THREAD);
1656
1657 spin_lock_irqsave(&priv->driver_lock, flags);
1658
1659 if (priv->cur_cmd) {
1660 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1661 spin_unlock_irqrestore(&priv->driver_lock, flags);
1662 ret = -1;
1663 goto done;
1664 }
1665
1666 if (!list_empty(&priv->cmdpendingq)) {
1667 cmdnode = list_first_entry(&priv->cmdpendingq,
1668 struct cmd_ctrl_node, list);
1669 }
1670
1671 spin_unlock_irqrestore(&priv->driver_lock, flags);
1672
1673 if (cmdnode) {
1674 cmd = cmdnode->cmdbuf;
1675
1676 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1677 if ((priv->psstate == PS_STATE_SLEEP) ||
1678 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1679 lbs_deb_host(
1680 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1681 le16_to_cpu(cmd->command),
1682 priv->psstate);
1683 ret = -1;
1684 goto done;
1685 }
1686 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1687 "0x%04x in psstate %d\n",
1688 le16_to_cpu(cmd->command), priv->psstate);
1689 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1690 /*
1691 * 1. Non-PS command:
1692 * Queue it. set needtowakeup to TRUE if current state
1693 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1694 * 2. PS command but not Exit_PS:
1695 * Ignore it.
1696 * 3. PS command Exit_PS:
1697 * Set needtowakeup to TRUE if current state is SLEEP,
1698 * otherwise send this command down to firmware
1699 * immediately.
1700 */
1701 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1702 /* Prepare to send Exit PS,
1703 * this non PS command will be sent later */
1704 if ((priv->psstate == PS_STATE_SLEEP)
1705 || (priv->psstate == PS_STATE_PRE_SLEEP)
1706 ) {
1707 /* w/ new scheme, it will not reach here.
1708 since it is blocked in main_thread. */
1709 priv->needtowakeup = 1;
1710 } else
1711 lbs_ps_wakeup(priv, 0);
1712
1713 ret = 0;
1714 goto done;
1715 } else {
1716 /*
1717 * PS command. Ignore it if it is not Exit_PS.
1718 * otherwise send it down immediately.
1719 */
1720 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1721
1722 lbs_deb_host(
1723 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1724 psm->action);
1725 if (psm->action !=
1726 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1727 lbs_deb_host(
1728 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1729 list_del(&cmdnode->list);
1730 spin_lock_irqsave(&priv->driver_lock, flags);
1731 lbs_complete_command(priv, cmdnode, 0);
1732 spin_unlock_irqrestore(&priv->driver_lock, flags);
1733
1734 ret = 0;
1735 goto done;
1736 }
1737
1738 if ((priv->psstate == PS_STATE_SLEEP) ||
1739 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1740 lbs_deb_host(
1741 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1742 list_del(&cmdnode->list);
1743 spin_lock_irqsave(&priv->driver_lock, flags);
1744 lbs_complete_command(priv, cmdnode, 0);
1745 spin_unlock_irqrestore(&priv->driver_lock, flags);
1746 priv->needtowakeup = 1;
1747
1748 ret = 0;
1749 goto done;
1750 }
1751
1752 lbs_deb_host(
1753 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1754 }
1755 }
1756 list_del(&cmdnode->list);
1757 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1758 le16_to_cpu(cmd->command));
1759 lbs_submit_command(priv, cmdnode);
1760 } else {
1761 /*
1762 * check if in power save mode, if yes, put the device back
1763 * to PS mode
1764 */
1765 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1766 (priv->psstate == PS_STATE_FULL_POWER) &&
1767 ((priv->connect_status == LBS_CONNECTED) ||
1768 (priv->mesh_connect_status == LBS_CONNECTED))) {
1769 if (priv->secinfo.WPAenabled ||
1770 priv->secinfo.WPA2enabled) {
1771 /* check for valid WPA group keys */
1772 if (priv->wpa_mcast_key.len ||
1773 priv->wpa_unicast_key.len) {
1774 lbs_deb_host(
1775 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1776 " go back to PS_SLEEP");
1777 lbs_ps_sleep(priv, 0);
1778 }
1779 } else {
1780 lbs_deb_host(
1781 "EXEC_NEXT_CMD: cmdpendingq empty, "
1782 "go back to PS_SLEEP");
1783 lbs_ps_sleep(priv, 0);
1784 }
1785 }
1786 }
1787
1788 ret = 0;
1789 done:
1790 lbs_deb_leave(LBS_DEB_THREAD);
1791 return ret;
1792 }
1793
1794 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1795 {
1796 union iwreq_data iwrq;
1797 u8 buf[50];
1798
1799 lbs_deb_enter(LBS_DEB_WEXT);
1800
1801 memset(&iwrq, 0, sizeof(union iwreq_data));
1802 memset(buf, 0, sizeof(buf));
1803
1804 snprintf(buf, sizeof(buf) - 1, "%s", str);
1805
1806 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1807
1808 /* Send Event to upper layer */
1809 lbs_deb_wext("event indication string %s\n", (char *)buf);
1810 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1811 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1812
1813 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1814
1815 lbs_deb_leave(LBS_DEB_WEXT);
1816 }
1817
1818 static void lbs_send_confirmsleep(struct lbs_private *priv)
1819 {
1820 unsigned long flags;
1821 int ret;
1822
1823 lbs_deb_enter(LBS_DEB_HOST);
1824 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1825 sizeof(confirm_sleep));
1826
1827 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1828 sizeof(confirm_sleep));
1829 if (ret) {
1830 lbs_pr_alert("confirm_sleep failed\n");
1831 goto out;
1832 }
1833
1834 spin_lock_irqsave(&priv->driver_lock, flags);
1835
1836 /* We don't get a response on the sleep-confirmation */
1837 priv->dnld_sent = DNLD_RES_RECEIVED;
1838
1839 /* If nothing to do, go back to sleep (?) */
1840 if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1841 priv->psstate = PS_STATE_SLEEP;
1842
1843 spin_unlock_irqrestore(&priv->driver_lock, flags);
1844
1845 out:
1846 lbs_deb_leave(LBS_DEB_HOST);
1847 }
1848
1849 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1850 {
1851 lbs_deb_enter(LBS_DEB_HOST);
1852
1853 /*
1854 * PS is currently supported only in Infrastructure mode
1855 * Remove this check if it is to be supported in IBSS mode also
1856 */
1857
1858 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1859 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1860
1861 lbs_deb_leave(LBS_DEB_HOST);
1862 }
1863
1864 /**
1865 * @brief This function sends Exit_PS command to firmware.
1866 *
1867 * @param priv A pointer to struct lbs_private structure
1868 * @param wait_option wait response or not
1869 * @return n/a
1870 */
1871 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1872 {
1873 __le32 Localpsmode;
1874
1875 lbs_deb_enter(LBS_DEB_HOST);
1876
1877 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1878
1879 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1880 CMD_SUBCMD_EXIT_PS,
1881 wait_option, 0, &Localpsmode);
1882
1883 lbs_deb_leave(LBS_DEB_HOST);
1884 }
1885
1886 /**
1887 * @brief This function checks condition and prepares to
1888 * send sleep confirm command to firmware if ok.
1889 *
1890 * @param priv A pointer to struct lbs_private structure
1891 * @param psmode Power Saving mode
1892 * @return n/a
1893 */
1894 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1895 {
1896 unsigned long flags =0;
1897 int allowed = 1;
1898
1899 lbs_deb_enter(LBS_DEB_HOST);
1900
1901 spin_lock_irqsave(&priv->driver_lock, flags);
1902 if (priv->dnld_sent) {
1903 allowed = 0;
1904 lbs_deb_host("dnld_sent was set\n");
1905 }
1906
1907 /* In-progress command? */
1908 if (priv->cur_cmd) {
1909 allowed = 0;
1910 lbs_deb_host("cur_cmd was set\n");
1911 }
1912
1913 /* Pending events or command responses? */
1914 if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1915 allowed = 0;
1916 lbs_deb_host("pending events or command responses\n");
1917 }
1918 spin_unlock_irqrestore(&priv->driver_lock, flags);
1919
1920 if (allowed) {
1921 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1922 lbs_send_confirmsleep(priv);
1923 } else {
1924 lbs_deb_host("sleep confirm has been delayed\n");
1925 }
1926
1927 lbs_deb_leave(LBS_DEB_HOST);
1928 }
1929
1930
1931 /**
1932 * @brief Configures the transmission power control functionality.
1933 *
1934 * @param priv A pointer to struct lbs_private structure
1935 * @param enable Transmission power control enable
1936 * @param p0 Power level when link quality is good (dBm).
1937 * @param p1 Power level when link quality is fair (dBm).
1938 * @param p2 Power level when link quality is poor (dBm).
1939 * @param usesnr Use Signal to Noise Ratio in TPC
1940 *
1941 * @return 0 on success
1942 */
1943 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
1944 int8_t p2, int usesnr)
1945 {
1946 struct cmd_ds_802_11_tpc_cfg cmd;
1947 int ret;
1948
1949 memset(&cmd, 0, sizeof(cmd));
1950 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1951 cmd.action = cpu_to_le16(CMD_ACT_SET);
1952 cmd.enable = !!enable;
1953 cmd.usesnr = !!usesnr;
1954 cmd.P0 = p0;
1955 cmd.P1 = p1;
1956 cmd.P2 = p2;
1957
1958 ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
1959
1960 return ret;
1961 }
1962
1963 /**
1964 * @brief Configures the power adaptation settings.
1965 *
1966 * @param priv A pointer to struct lbs_private structure
1967 * @param enable Power adaptation enable
1968 * @param p0 Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1969 * @param p1 Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1970 * @param p2 Power level for 48 and 54 Mbps (dBm).
1971 *
1972 * @return 0 on Success
1973 */
1974
1975 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
1976 int8_t p1, int8_t p2)
1977 {
1978 struct cmd_ds_802_11_pa_cfg cmd;
1979 int ret;
1980
1981 memset(&cmd, 0, sizeof(cmd));
1982 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1983 cmd.action = cpu_to_le16(CMD_ACT_SET);
1984 cmd.enable = !!enable;
1985 cmd.P0 = p0;
1986 cmd.P1 = p1;
1987 cmd.P2 = p2;
1988
1989 ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
1990
1991 return ret;
1992 }
1993
1994
1995 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1996 uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1997 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1998 unsigned long callback_arg)
1999 {
2000 struct cmd_ctrl_node *cmdnode;
2001
2002 lbs_deb_enter(LBS_DEB_HOST);
2003
2004 if (priv->surpriseremoved) {
2005 lbs_deb_host("PREP_CMD: card removed\n");
2006 cmdnode = ERR_PTR(-ENOENT);
2007 goto done;
2008 }
2009
2010 cmdnode = lbs_get_cmd_ctrl_node(priv);
2011 if (cmdnode == NULL) {
2012 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2013
2014 /* Wake up main thread to execute next command */
2015 wake_up_interruptible(&priv->waitq);
2016 cmdnode = ERR_PTR(-ENOBUFS);
2017 goto done;
2018 }
2019
2020 cmdnode->callback = callback;
2021 cmdnode->callback_arg = callback_arg;
2022
2023 /* Copy the incoming command to the buffer */
2024 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2025
2026 /* Set sequence number, clean result, move to buffer */
2027 priv->seqnum++;
2028 cmdnode->cmdbuf->command = cpu_to_le16(command);
2029 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
2030 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
2031 cmdnode->cmdbuf->result = 0;
2032
2033 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2034
2035 cmdnode->cmdwaitqwoken = 0;
2036 lbs_queue_cmd(priv, cmdnode);
2037 wake_up_interruptible(&priv->waitq);
2038
2039 done:
2040 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2041 return cmdnode;
2042 }
2043
2044 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2045 struct cmd_header *in_cmd, int in_cmd_size)
2046 {
2047 lbs_deb_enter(LBS_DEB_CMD);
2048 __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2049 lbs_cmd_async_callback, 0);
2050 lbs_deb_leave(LBS_DEB_CMD);
2051 }
2052
2053 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2054 struct cmd_header *in_cmd, int in_cmd_size,
2055 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2056 unsigned long callback_arg)
2057 {
2058 struct cmd_ctrl_node *cmdnode;
2059 unsigned long flags;
2060 int ret = 0;
2061
2062 lbs_deb_enter(LBS_DEB_HOST);
2063
2064 cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2065 callback, callback_arg);
2066 if (IS_ERR(cmdnode)) {
2067 ret = PTR_ERR(cmdnode);
2068 goto done;
2069 }
2070
2071 might_sleep();
2072 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2073
2074 spin_lock_irqsave(&priv->driver_lock, flags);
2075 ret = cmdnode->result;
2076 if (ret)
2077 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2078 command, ret);
2079
2080 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2081 spin_unlock_irqrestore(&priv->driver_lock, flags);
2082
2083 done:
2084 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2085 return ret;
2086 }
2087 EXPORT_SYMBOL_GPL(__lbs_cmd);
2088
2089
Linux kernel - Deliverables
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