projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
[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/lib80211.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 /* Determine mesh_fw_ver from fwrelease and fwcapinfo */
123 /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
124 /* 5.110.22 have mesh command with 0xa3 command id */
125 /* 10.0.0.p0 FW brings in mesh config command with different id */
126 /* Check FW version MSB and initialize mesh_fw_ver */
127 if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5)
128 priv->mesh_fw_ver = MESH_FW_OLD;
129 else if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
130 (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK))
131 priv->mesh_fw_ver = MESH_FW_NEW;
132 else
133 priv->mesh_fw_ver = MESH_NONE;
134
135 /* Clamp region code to 8-bit since FW spec indicates that it should
136 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
137 * returns non-zero high 8 bits here.
138 */
139 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
140
141 for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
142 /* use the region code to search for the index */
143 if (priv->regioncode == lbs_region_code_to_index[i])
144 break;
145 }
146
147 /* if it's unidentified region code, use the default (USA) */
148 if (i >= MRVDRV_MAX_REGION_CODE) {
149 priv->regioncode = 0x10;
150 lbs_pr_info("unidentified region code; using the default (USA)\n");
151 }
152
153 if (priv->current_addr[0] == 0xff)
154 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
155
156 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
157 if (priv->mesh_dev)
158 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
159
160 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
161 ret = -1;
162 goto out;
163 }
164
165 if (lbs_set_universaltable(priv, 0)) {
166 ret = -1;
167 goto out;
168 }
169
170 out:
171 lbs_deb_leave(LBS_DEB_CMD);
172 return ret;
173 }
174
175 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
176 struct wol_config *p_wol_config)
177 {
178 struct cmd_ds_host_sleep cmd_config;
179 int ret;
180
181 cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
182 cmd_config.criteria = cpu_to_le32(criteria);
183 cmd_config.gpio = priv->wol_gpio;
184 cmd_config.gap = priv->wol_gap;
185
186 if (p_wol_config != NULL)
187 memcpy((uint8_t *)&cmd_config.wol_conf, (uint8_t *)p_wol_config,
188 sizeof(struct wol_config));
189 else
190 cmd_config.wol_conf.action = CMD_ACT_ACTION_NONE;
191
192 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
193 if (!ret) {
194 if (criteria) {
195 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
196 priv->wol_criteria = criteria;
197 } else
198 memcpy((uint8_t *) p_wol_config,
199 (uint8_t *)&cmd_config.wol_conf,
200 sizeof(struct wol_config));
201 } else {
202 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
203 }
204
205 return ret;
206 }
207 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
208
209 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
210 u16 cmd_action)
211 {
212 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
213
214 lbs_deb_enter(LBS_DEB_CMD);
215
216 cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
217 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
218 S_DS_GEN);
219 psm->action = cpu_to_le16(cmd_action);
220 psm->multipledtim = 0;
221 switch (cmd_action) {
222 case CMD_SUBCMD_ENTER_PS:
223 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
224
225 psm->locallisteninterval = 0;
226 psm->nullpktinterval = 0;
227 psm->multipledtim =
228 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
229 break;
230
231 case CMD_SUBCMD_EXIT_PS:
232 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
233 break;
234
235 case CMD_SUBCMD_SLEEP_CONFIRMED:
236 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
237 break;
238
239 default:
240 break;
241 }
242
243 lbs_deb_leave(LBS_DEB_CMD);
244 return 0;
245 }
246
247 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
248 uint16_t cmd_action, uint16_t *timeout)
249 {
250 struct cmd_ds_802_11_inactivity_timeout cmd;
251 int ret;
252
253 lbs_deb_enter(LBS_DEB_CMD);
254
255 cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
256 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
257
258 cmd.action = cpu_to_le16(cmd_action);
259
260 if (cmd_action == CMD_ACT_SET)
261 cmd.timeout = cpu_to_le16(*timeout);
262 else
263 cmd.timeout = 0;
264
265 ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
266
267 if (!ret)
268 *timeout = le16_to_cpu(cmd.timeout);
269
270 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
271 return 0;
272 }
273
274 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
275 struct sleep_params *sp)
276 {
277 struct cmd_ds_802_11_sleep_params cmd;
278 int ret;
279
280 lbs_deb_enter(LBS_DEB_CMD);
281
282 if (cmd_action == CMD_ACT_GET) {
283 memset(&cmd, 0, sizeof(cmd));
284 } else {
285 cmd.error = cpu_to_le16(sp->sp_error);
286 cmd.offset = cpu_to_le16(sp->sp_offset);
287 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
288 cmd.calcontrol = sp->sp_calcontrol;
289 cmd.externalsleepclk = sp->sp_extsleepclk;
290 cmd.reserved = cpu_to_le16(sp->sp_reserved);
291 }
292 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
293 cmd.action = cpu_to_le16(cmd_action);
294
295 ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
296
297 if (!ret) {
298 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
299 "calcontrol 0x%x extsleepclk 0x%x\n",
300 le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
301 le16_to_cpu(cmd.stabletime), cmd.calcontrol,
302 cmd.externalsleepclk);
303
304 sp->sp_error = le16_to_cpu(cmd.error);
305 sp->sp_offset = le16_to_cpu(cmd.offset);
306 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
307 sp->sp_calcontrol = cmd.calcontrol;
308 sp->sp_extsleepclk = cmd.externalsleepclk;
309 sp->sp_reserved = le16_to_cpu(cmd.reserved);
310 }
311
312 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
313 return 0;
314 }
315
316 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
317 struct assoc_request *assoc)
318 {
319 struct cmd_ds_802_11_set_wep cmd;
320 int ret = 0;
321
322 lbs_deb_enter(LBS_DEB_CMD);
323
324 memset(&cmd, 0, sizeof(cmd));
325 cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
326 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
327
328 cmd.action = cpu_to_le16(cmd_action);
329
330 if (cmd_action == CMD_ACT_ADD) {
331 int i;
332
333 /* default tx key index */
334 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
335 CMD_WEP_KEY_INDEX_MASK);
336
337 /* Copy key types and material to host command structure */
338 for (i = 0; i < 4; i++) {
339 struct enc_key *pkey = &assoc->wep_keys[i];
340
341 switch (pkey->len) {
342 case KEY_LEN_WEP_40:
343 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
344 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
345 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
346 break;
347 case KEY_LEN_WEP_104:
348 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
349 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
350 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
351 break;
352 case 0:
353 break;
354 default:
355 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
356 i, pkey->len);
357 ret = -1;
358 goto done;
359 break;
360 }
361 }
362 } else if (cmd_action == CMD_ACT_REMOVE) {
363 /* ACT_REMOVE clears _all_ WEP keys */
364
365 /* default tx key index */
366 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
367 CMD_WEP_KEY_INDEX_MASK);
368 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
369 }
370
371 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
372 done:
373 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
374 return ret;
375 }
376
377 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
378 uint16_t *enable)
379 {
380 struct cmd_ds_802_11_enable_rsn cmd;
381 int ret;
382
383 lbs_deb_enter(LBS_DEB_CMD);
384
385 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
386 cmd.action = cpu_to_le16(cmd_action);
387
388 if (cmd_action == CMD_ACT_GET)
389 cmd.enable = 0;
390 else {
391 if (*enable)
392 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
393 else
394 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
395 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
396 }
397
398 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
399 if (!ret && cmd_action == CMD_ACT_GET)
400 *enable = le16_to_cpu(cmd.enable);
401
402 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
403 return ret;
404 }
405
406 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
407 struct enc_key *key)
408 {
409 lbs_deb_enter(LBS_DEB_CMD);
410
411 if (key->flags & KEY_INFO_WPA_ENABLED)
412 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
413 if (key->flags & KEY_INFO_WPA_UNICAST)
414 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
415 if (key->flags & KEY_INFO_WPA_MCAST)
416 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
417
418 keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
419 keyparam->keytypeid = cpu_to_le16(key->type);
420 keyparam->keylen = cpu_to_le16(key->len);
421 memcpy(keyparam->key, key->key, key->len);
422
423 /* Length field doesn't include the {type,length} header */
424 keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
425 lbs_deb_leave(LBS_DEB_CMD);
426 }
427
428 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
429 struct assoc_request *assoc)
430 {
431 struct cmd_ds_802_11_key_material cmd;
432 int ret = 0;
433 int index = 0;
434
435 lbs_deb_enter(LBS_DEB_CMD);
436
437 cmd.action = cpu_to_le16(cmd_action);
438 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
439
440 if (cmd_action == CMD_ACT_GET) {
441 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
442 } else {
443 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
444
445 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
446 set_one_wpa_key(&cmd.keyParamSet[index],
447 &assoc->wpa_unicast_key);
448 index++;
449 }
450
451 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
452 set_one_wpa_key(&cmd.keyParamSet[index],
453 &assoc->wpa_mcast_key);
454 index++;
455 }
456
457 /* The common header and as many keys as we included */
458 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
459 keyParamSet[index]));
460 }
461 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
462 /* Copy the returned key to driver private data */
463 if (!ret && cmd_action == CMD_ACT_GET) {
464 void *buf_ptr = cmd.keyParamSet;
465 void *resp_end = &(&cmd)[1];
466
467 while (buf_ptr < resp_end) {
468 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
469 struct enc_key *key;
470 uint16_t param_set_len = le16_to_cpu(keyparam->length);
471 uint16_t key_len = le16_to_cpu(keyparam->keylen);
472 uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
473 uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
474 void *end;
475
476 end = (void *)keyparam + sizeof(keyparam->type)
477 + sizeof(keyparam->length) + param_set_len;
478
479 /* Make sure we don't access past the end of the IEs */
480 if (end > resp_end)
481 break;
482
483 if (key_flags & KEY_INFO_WPA_UNICAST)
484 key = &priv->wpa_unicast_key;
485 else if (key_flags & KEY_INFO_WPA_MCAST)
486 key = &priv->wpa_mcast_key;
487 else
488 break;
489
490 /* Copy returned key into driver */
491 memset(key, 0, sizeof(struct enc_key));
492 if (key_len > sizeof(key->key))
493 break;
494 key->type = key_type;
495 key->flags = key_flags;
496 key->len = key_len;
497 memcpy(key->key, keyparam->key, key->len);
498
499 buf_ptr = end + 1;
500 }
501 }
502
503 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
504 return ret;
505 }
506
507 /**
508 * @brief Set an SNMP MIB value
509 *
510 * @param priv A pointer to struct lbs_private structure
511 * @param oid The OID to set in the firmware
512 * @param val Value to set the OID to
513 *
514 * @return 0 on success, error on failure
515 */
516 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
517 {
518 struct cmd_ds_802_11_snmp_mib cmd;
519 int ret;
520
521 lbs_deb_enter(LBS_DEB_CMD);
522
523 memset(&cmd, 0, sizeof (cmd));
524 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
525 cmd.action = cpu_to_le16(CMD_ACT_SET);
526 cmd.oid = cpu_to_le16((u16) oid);
527
528 switch (oid) {
529 case SNMP_MIB_OID_BSS_TYPE:
530 cmd.bufsize = cpu_to_le16(sizeof(u8));
531 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
532 break;
533 case SNMP_MIB_OID_11D_ENABLE:
534 case SNMP_MIB_OID_FRAG_THRESHOLD:
535 case SNMP_MIB_OID_RTS_THRESHOLD:
536 case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
537 case SNMP_MIB_OID_LONG_RETRY_LIMIT:
538 cmd.bufsize = cpu_to_le16(sizeof(u16));
539 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
540 break;
541 default:
542 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
543 ret = -EINVAL;
544 goto out;
545 }
546
547 lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
548 le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
549
550 ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
551
552 out:
553 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
554 return ret;
555 }
556
557 /**
558 * @brief Get an SNMP MIB value
559 *
560 * @param priv A pointer to struct lbs_private structure
561 * @param oid The OID to retrieve from the firmware
562 * @param out_val Location for the returned value
563 *
564 * @return 0 on success, error on failure
565 */
566 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
567 {
568 struct cmd_ds_802_11_snmp_mib cmd;
569 int ret;
570
571 lbs_deb_enter(LBS_DEB_CMD);
572
573 memset(&cmd, 0, sizeof (cmd));
574 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
575 cmd.action = cpu_to_le16(CMD_ACT_GET);
576 cmd.oid = cpu_to_le16(oid);
577
578 ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
579 if (ret)
580 goto out;
581
582 switch (le16_to_cpu(cmd.bufsize)) {
583 case sizeof(u8):
584 if (oid == SNMP_MIB_OID_BSS_TYPE) {
585 if (cmd.value[0] == 2)
586 *out_val = IW_MODE_ADHOC;
587 else
588 *out_val = IW_MODE_INFRA;
589 } else
590 *out_val = cmd.value[0];
591 break;
592 case sizeof(u16):
593 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
594 break;
595 default:
596 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
597 oid, le16_to_cpu(cmd.bufsize));
598 break;
599 }
600
601 out:
602 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
603 return ret;
604 }
605
606 /**
607 * @brief Get the min, max, and current TX power
608 *
609 * @param priv A pointer to struct lbs_private structure
610 * @param curlevel Current power level in dBm
611 * @param minlevel Minimum supported power level in dBm (optional)
612 * @param maxlevel Maximum supported power level in dBm (optional)
613 *
614 * @return 0 on success, error on failure
615 */
616 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
617 s16 *maxlevel)
618 {
619 struct cmd_ds_802_11_rf_tx_power cmd;
620 int ret;
621
622 lbs_deb_enter(LBS_DEB_CMD);
623
624 memset(&cmd, 0, sizeof(cmd));
625 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
626 cmd.action = cpu_to_le16(CMD_ACT_GET);
627
628 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
629 if (ret == 0) {
630 *curlevel = le16_to_cpu(cmd.curlevel);
631 if (minlevel)
632 *minlevel = cmd.minlevel;
633 if (maxlevel)
634 *maxlevel = cmd.maxlevel;
635 }
636
637 lbs_deb_leave(LBS_DEB_CMD);
638 return ret;
639 }
640
641 /**
642 * @brief Set the TX power
643 *
644 * @param priv A pointer to struct lbs_private structure
645 * @param dbm The desired power level in dBm
646 *
647 * @return 0 on success, error on failure
648 */
649 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
650 {
651 struct cmd_ds_802_11_rf_tx_power cmd;
652 int ret;
653
654 lbs_deb_enter(LBS_DEB_CMD);
655
656 memset(&cmd, 0, sizeof(cmd));
657 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
658 cmd.action = cpu_to_le16(CMD_ACT_SET);
659 cmd.curlevel = cpu_to_le16(dbm);
660
661 lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
662
663 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
664
665 lbs_deb_leave(LBS_DEB_CMD);
666 return ret;
667 }
668
669 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
670 u16 cmd_action, void *pdata_buf)
671 {
672 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
673
674 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
675 cmd->size =
676 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
677 S_DS_GEN);
678
679 monitor->action = cpu_to_le16(cmd_action);
680 if (cmd_action == CMD_ACT_SET) {
681 monitor->mode =
682 cpu_to_le16((u16) (*(u32 *) pdata_buf));
683 }
684
685 return 0;
686 }
687
688 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
689 {
690 /* Bit Rate
691 * 15:13 Reserved
692 * 12 54 Mbps
693 * 11 48 Mbps
694 * 10 36 Mbps
695 * 9 24 Mbps
696 * 8 18 Mbps
697 * 7 12 Mbps
698 * 6 9 Mbps
699 * 5 6 Mbps
700 * 4 Reserved
701 * 3 11 Mbps
702 * 2 5.5 Mbps
703 * 1 2 Mbps
704 * 0 1 Mbps
705 **/
706
707 uint16_t ratemask;
708 int i = lbs_data_rate_to_fw_index(rate);
709 if (lower_rates_ok)
710 ratemask = (0x1fef >> (12 - i));
711 else
712 ratemask = (1 << i);
713 return cpu_to_le16(ratemask);
714 }
715
716 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
717 uint16_t cmd_action)
718 {
719 struct cmd_ds_802_11_rate_adapt_rateset cmd;
720 int ret;
721
722 lbs_deb_enter(LBS_DEB_CMD);
723
724 if (!priv->cur_rate && !priv->enablehwauto)
725 return -EINVAL;
726
727 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
728
729 cmd.action = cpu_to_le16(cmd_action);
730 cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
731 cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
732 ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
733 if (!ret && cmd_action == CMD_ACT_GET) {
734 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
735 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
736 }
737
738 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
739 return ret;
740 }
741 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
742
743 /**
744 * @brief Set the data rate
745 *
746 * @param priv A pointer to struct lbs_private structure
747 * @param rate The desired data rate, or 0 to clear a locked rate
748 *
749 * @return 0 on success, error on failure
750 */
751 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
752 {
753 struct cmd_ds_802_11_data_rate cmd;
754 int ret = 0;
755
756 lbs_deb_enter(LBS_DEB_CMD);
757
758 memset(&cmd, 0, sizeof(cmd));
759 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
760
761 if (rate > 0) {
762 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
763 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
764 if (cmd.rates[0] == 0) {
765 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
766 " 0x%02X\n", rate);
767 ret = 0;
768 goto out;
769 }
770 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
771 } else {
772 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
773 lbs_deb_cmd("DATA_RATE: setting auto\n");
774 }
775
776 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
777 if (ret)
778 goto out;
779
780 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
781
782 /* FIXME: get actual rates FW can do if this command actually returns
783 * all data rates supported.
784 */
785 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
786 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
787
788 out:
789 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
790 return ret;
791 }
792
793 /**
794 * @brief Get the radio channel
795 *
796 * @param priv A pointer to struct lbs_private structure
797 *
798 * @return The channel on success, error on failure
799 */
800 int lbs_get_channel(struct lbs_private *priv)
801 {
802 struct cmd_ds_802_11_rf_channel cmd;
803 int ret = 0;
804
805 lbs_deb_enter(LBS_DEB_CMD);
806
807 memset(&cmd, 0, sizeof(cmd));
808 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
809 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
810
811 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
812 if (ret)
813 goto out;
814
815 ret = le16_to_cpu(cmd.channel);
816 lbs_deb_cmd("current radio channel is %d\n", ret);
817
818 out:
819 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
820 return ret;
821 }
822
823 int lbs_update_channel(struct lbs_private *priv)
824 {
825 int ret;
826
827 /* the channel in f/w could be out of sync; get the current channel */
828 lbs_deb_enter(LBS_DEB_ASSOC);
829
830 ret = lbs_get_channel(priv);
831 if (ret > 0) {
832 priv->curbssparams.channel = ret;
833 ret = 0;
834 }
835 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
836 return ret;
837 }
838
839 /**
840 * @brief Set the radio channel
841 *
842 * @param priv A pointer to struct lbs_private structure
843 * @param channel The desired channel, or 0 to clear a locked channel
844 *
845 * @return 0 on success, error on failure
846 */
847 int lbs_set_channel(struct lbs_private *priv, u8 channel)
848 {
849 struct cmd_ds_802_11_rf_channel cmd;
850 #ifdef DEBUG
851 u8 old_channel = priv->curbssparams.channel;
852 #endif
853 int ret = 0;
854
855 lbs_deb_enter(LBS_DEB_CMD);
856
857 memset(&cmd, 0, sizeof(cmd));
858 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
859 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
860 cmd.channel = cpu_to_le16(channel);
861
862 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
863 if (ret)
864 goto out;
865
866 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
867 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
868 priv->curbssparams.channel);
869
870 out:
871 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
872 return ret;
873 }
874
875 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
876 struct cmd_ds_command *cmd)
877 {
878
879 lbs_deb_enter(LBS_DEB_CMD);
880 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
881 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
882 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
883
884 /* reset Beacon SNR/NF/RSSI values */
885 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
886 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
887 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
888 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
889 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
890 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
891
892 lbs_deb_leave(LBS_DEB_CMD);
893 return 0;
894 }
895
896 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
897 u8 cmd_action, void *pdata_buf)
898 {
899 struct lbs_offset_value *offval;
900
901 lbs_deb_enter(LBS_DEB_CMD);
902
903 offval = (struct lbs_offset_value *)pdata_buf;
904
905 switch (le16_to_cpu(cmdptr->command)) {
906 case CMD_MAC_REG_ACCESS:
907 {
908 struct cmd_ds_mac_reg_access *macreg;
909
910 cmdptr->size =
911 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
912 + S_DS_GEN);
913 macreg =
914 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
915 macreg;
916
917 macreg->action = cpu_to_le16(cmd_action);
918 macreg->offset = cpu_to_le16((u16) offval->offset);
919 macreg->value = cpu_to_le32(offval->value);
920
921 break;
922 }
923
924 case CMD_BBP_REG_ACCESS:
925 {
926 struct cmd_ds_bbp_reg_access *bbpreg;
927
928 cmdptr->size =
929 cpu_to_le16(sizeof
930 (struct cmd_ds_bbp_reg_access)
931 + S_DS_GEN);
932 bbpreg =
933 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
934 bbpreg;
935
936 bbpreg->action = cpu_to_le16(cmd_action);
937 bbpreg->offset = cpu_to_le16((u16) offval->offset);
938 bbpreg->value = (u8) offval->value;
939
940 break;
941 }
942
943 case CMD_RF_REG_ACCESS:
944 {
945 struct cmd_ds_rf_reg_access *rfreg;
946
947 cmdptr->size =
948 cpu_to_le16(sizeof
949 (struct cmd_ds_rf_reg_access) +
950 S_DS_GEN);
951 rfreg =
952 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
953 rfreg;
954
955 rfreg->action = cpu_to_le16(cmd_action);
956 rfreg->offset = cpu_to_le16((u16) offval->offset);
957 rfreg->value = (u8) offval->value;
958
959 break;
960 }
961
962 default:
963 break;
964 }
965
966 lbs_deb_leave(LBS_DEB_CMD);
967 return 0;
968 }
969
970 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
971 u16 cmd_action, void *pdata_buf)
972 {
973 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
974 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
975
976 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
977 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
978 cmd->result = 0;
979 bt_access->action = cpu_to_le16(cmd_action);
980
981 switch (cmd_action) {
982 case CMD_ACT_BT_ACCESS_ADD:
983 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
984 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
985 break;
986 case CMD_ACT_BT_ACCESS_DEL:
987 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
988 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
989 break;
990 case CMD_ACT_BT_ACCESS_LIST:
991 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
992 break;
993 case CMD_ACT_BT_ACCESS_RESET:
994 break;
995 case CMD_ACT_BT_ACCESS_SET_INVERT:
996 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
997 break;
998 case CMD_ACT_BT_ACCESS_GET_INVERT:
999 break;
1000 default:
1001 break;
1002 }
1003 lbs_deb_leave(LBS_DEB_CMD);
1004 return 0;
1005 }
1006
1007 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1008 u16 cmd_action, void *pdata_buf)
1009 {
1010 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1011 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1012
1013 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1014 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1015 cmd->result = 0;
1016
1017 if (pdata_buf)
1018 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1019 else
1020 memset(fwt_access, 0, sizeof(*fwt_access));
1021
1022 fwt_access->action = cpu_to_le16(cmd_action);
1023
1024 lbs_deb_leave(LBS_DEB_CMD);
1025 return 0;
1026 }
1027
1028 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1029 struct cmd_ds_mesh_access *cmd)
1030 {
1031 int ret;
1032
1033 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1034
1035 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1036 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1037 cmd->hdr.result = 0;
1038
1039 cmd->action = cpu_to_le16(cmd_action);
1040
1041 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1042
1043 lbs_deb_leave(LBS_DEB_CMD);
1044 return ret;
1045 }
1046
1047 static int __lbs_mesh_config_send(struct lbs_private *priv,
1048 struct cmd_ds_mesh_config *cmd,
1049 uint16_t action, uint16_t type)
1050 {
1051 int ret;
1052 u16 command = CMD_MESH_CONFIG_OLD;
1053
1054 lbs_deb_enter(LBS_DEB_CMD);
1055
1056 /*
1057 * Command id is 0xac for v10 FW along with mesh interface
1058 * id in bits 14-13-12.
1059 */
1060 if (priv->mesh_fw_ver == MESH_FW_NEW)
1061 command = CMD_MESH_CONFIG |
1062 (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
1063
1064 cmd->hdr.command = cpu_to_le16(command);
1065 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1066 cmd->hdr.result = 0;
1067
1068 cmd->type = cpu_to_le16(type);
1069 cmd->action = cpu_to_le16(action);
1070
1071 ret = lbs_cmd_with_response(priv, command, cmd);
1072
1073 lbs_deb_leave(LBS_DEB_CMD);
1074 return ret;
1075 }
1076
1077 int lbs_mesh_config_send(struct lbs_private *priv,
1078 struct cmd_ds_mesh_config *cmd,
1079 uint16_t action, uint16_t type)
1080 {
1081 int ret;
1082
1083 if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1084 return -EOPNOTSUPP;
1085
1086 ret = __lbs_mesh_config_send(priv, cmd, action, type);
1087 return ret;
1088 }
1089
1090 /* This function is the CMD_MESH_CONFIG legacy function. It only handles the
1091 * START and STOP actions. The extended actions supported by CMD_MESH_CONFIG
1092 * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1093 * lbs_mesh_config_send.
1094 */
1095 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1096 {
1097 struct cmd_ds_mesh_config cmd;
1098 struct mrvl_meshie *ie;
1099 DECLARE_SSID_BUF(ssid);
1100
1101 memset(&cmd, 0, sizeof(cmd));
1102 cmd.channel = cpu_to_le16(chan);
1103 ie = (struct mrvl_meshie *)cmd.data;
1104
1105 switch (action) {
1106 case CMD_ACT_MESH_CONFIG_START:
1107 ie->id = WLAN_EID_GENERIC;
1108 ie->val.oui[0] = 0x00;
1109 ie->val.oui[1] = 0x50;
1110 ie->val.oui[2] = 0x43;
1111 ie->val.type = MARVELL_MESH_IE_TYPE;
1112 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1113 ie->val.version = MARVELL_MESH_IE_VERSION;
1114 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1115 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1116 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1117 ie->val.mesh_id_len = priv->mesh_ssid_len;
1118 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1119 ie->len = sizeof(struct mrvl_meshie_val) -
1120 IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1121 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1122 break;
1123 case CMD_ACT_MESH_CONFIG_STOP:
1124 break;
1125 default:
1126 return -1;
1127 }
1128 lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1129 action, priv->mesh_tlv, chan,
1130 print_ssid(ssid, priv->mesh_ssid, priv->mesh_ssid_len));
1131
1132 return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1133 }
1134
1135 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1136 struct cmd_ds_command *cmd,
1137 u16 cmd_action)
1138 {
1139 struct cmd_ds_802_11_beacon_control
1140 *bcn_ctrl = &cmd->params.bcn_ctrl;
1141
1142 lbs_deb_enter(LBS_DEB_CMD);
1143 cmd->size =
1144 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1145 + S_DS_GEN);
1146 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1147
1148 bcn_ctrl->action = cpu_to_le16(cmd_action);
1149 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1150 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1151
1152 lbs_deb_leave(LBS_DEB_CMD);
1153 return 0;
1154 }
1155
1156 static void lbs_queue_cmd(struct lbs_private *priv,
1157 struct cmd_ctrl_node *cmdnode)
1158 {
1159 unsigned long flags;
1160 int addtail = 1;
1161
1162 lbs_deb_enter(LBS_DEB_HOST);
1163
1164 if (!cmdnode) {
1165 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1166 goto done;
1167 }
1168 if (!cmdnode->cmdbuf->size) {
1169 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1170 goto done;
1171 }
1172 cmdnode->result = 0;
1173
1174 /* Exit_PS command needs to be queued in the header always. */
1175 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1176 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1177
1178 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1179 if (priv->psstate != PS_STATE_FULL_POWER)
1180 addtail = 0;
1181 }
1182 }
1183
1184 spin_lock_irqsave(&priv->driver_lock, flags);
1185
1186 if (addtail)
1187 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1188 else
1189 list_add(&cmdnode->list, &priv->cmdpendingq);
1190
1191 spin_unlock_irqrestore(&priv->driver_lock, flags);
1192
1193 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1194 le16_to_cpu(cmdnode->cmdbuf->command));
1195
1196 done:
1197 lbs_deb_leave(LBS_DEB_HOST);
1198 }
1199
1200 static void lbs_submit_command(struct lbs_private *priv,
1201 struct cmd_ctrl_node *cmdnode)
1202 {
1203 unsigned long flags;
1204 struct cmd_header *cmd;
1205 uint16_t cmdsize;
1206 uint16_t command;
1207 int timeo = 3 * HZ;
1208 int ret;
1209
1210 lbs_deb_enter(LBS_DEB_HOST);
1211
1212 cmd = cmdnode->cmdbuf;
1213
1214 spin_lock_irqsave(&priv->driver_lock, flags);
1215 priv->cur_cmd = cmdnode;
1216 priv->cur_cmd_retcode = 0;
1217 spin_unlock_irqrestore(&priv->driver_lock, flags);
1218
1219 cmdsize = le16_to_cpu(cmd->size);
1220 command = le16_to_cpu(cmd->command);
1221
1222 /* These commands take longer */
1223 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE)
1224 timeo = 5 * HZ;
1225
1226 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1227 command, le16_to_cpu(cmd->seqnum), cmdsize);
1228 lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1229
1230 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1231
1232 if (ret) {
1233 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1234 /* Let the timer kick in and retry, and potentially reset
1235 the whole thing if the condition persists */
1236 timeo = HZ/4;
1237 }
1238
1239 /* Setup the timer after transmit command */
1240 mod_timer(&priv->command_timer, jiffies + timeo);
1241
1242 lbs_deb_leave(LBS_DEB_HOST);
1243 }
1244
1245 /**
1246 * This function inserts command node to cmdfreeq
1247 * after cleans it. Requires priv->driver_lock held.
1248 */
1249 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1250 struct cmd_ctrl_node *cmdnode)
1251 {
1252 lbs_deb_enter(LBS_DEB_HOST);
1253
1254 if (!cmdnode)
1255 goto out;
1256
1257 cmdnode->callback = NULL;
1258 cmdnode->callback_arg = 0;
1259
1260 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1261
1262 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1263 out:
1264 lbs_deb_leave(LBS_DEB_HOST);
1265 }
1266
1267 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1268 struct cmd_ctrl_node *ptempcmd)
1269 {
1270 unsigned long flags;
1271
1272 spin_lock_irqsave(&priv->driver_lock, flags);
1273 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1274 spin_unlock_irqrestore(&priv->driver_lock, flags);
1275 }
1276
1277 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1278 int result)
1279 {
1280 if (cmd == priv->cur_cmd)
1281 priv->cur_cmd_retcode = result;
1282
1283 cmd->result = result;
1284 cmd->cmdwaitqwoken = 1;
1285 wake_up_interruptible(&cmd->cmdwait_q);
1286
1287 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1288 __lbs_cleanup_and_insert_cmd(priv, cmd);
1289 priv->cur_cmd = NULL;
1290 }
1291
1292 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1293 {
1294 struct cmd_ds_802_11_radio_control cmd;
1295 int ret = -EINVAL;
1296
1297 lbs_deb_enter(LBS_DEB_CMD);
1298
1299 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1300 cmd.action = cpu_to_le16(CMD_ACT_SET);
1301
1302 /* Only v8 and below support setting the preamble */
1303 if (priv->fwrelease < 0x09000000) {
1304 switch (preamble) {
1305 case RADIO_PREAMBLE_SHORT:
1306 if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1307 goto out;
1308 /* Fall through */
1309 case RADIO_PREAMBLE_AUTO:
1310 case RADIO_PREAMBLE_LONG:
1311 cmd.control = cpu_to_le16(preamble);
1312 break;
1313 default:
1314 goto out;
1315 }
1316 }
1317
1318 if (radio_on)
1319 cmd.control |= cpu_to_le16(0x1);
1320 else {
1321 cmd.control &= cpu_to_le16(~0x1);
1322 priv->txpower_cur = 0;
1323 }
1324
1325 lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1326 radio_on ? "ON" : "OFF", preamble);
1327
1328 priv->radio_on = radio_on;
1329
1330 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1331
1332 out:
1333 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1334 return ret;
1335 }
1336
1337 void lbs_set_mac_control(struct lbs_private *priv)
1338 {
1339 struct cmd_ds_mac_control cmd;
1340
1341 lbs_deb_enter(LBS_DEB_CMD);
1342
1343 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1344 cmd.action = cpu_to_le16(priv->mac_control);
1345 cmd.reserved = 0;
1346
1347 lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1348
1349 lbs_deb_leave(LBS_DEB_CMD);
1350 }
1351
1352 /**
1353 * @brief This function prepare the command before send to firmware.
1354 *
1355 * @param priv A pointer to struct lbs_private structure
1356 * @param cmd_no command number
1357 * @param cmd_action command action: GET or SET
1358 * @param wait_option wait option: wait response or not
1359 * @param cmd_oid cmd oid: treated as sub command
1360 * @param pdata_buf A pointer to informaion buffer
1361 * @return 0 or -1
1362 */
1363 int lbs_prepare_and_send_command(struct lbs_private *priv,
1364 u16 cmd_no,
1365 u16 cmd_action,
1366 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1367 {
1368 int ret = 0;
1369 struct cmd_ctrl_node *cmdnode;
1370 struct cmd_ds_command *cmdptr;
1371 unsigned long flags;
1372
1373 lbs_deb_enter(LBS_DEB_HOST);
1374
1375 if (!priv) {
1376 lbs_deb_host("PREP_CMD: priv is NULL\n");
1377 ret = -1;
1378 goto done;
1379 }
1380
1381 if (priv->surpriseremoved) {
1382 lbs_deb_host("PREP_CMD: card removed\n");
1383 ret = -1;
1384 goto done;
1385 }
1386
1387 cmdnode = lbs_get_cmd_ctrl_node(priv);
1388
1389 if (cmdnode == NULL) {
1390 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1391
1392 /* Wake up main thread to execute next command */
1393 wake_up_interruptible(&priv->waitq);
1394 ret = -1;
1395 goto done;
1396 }
1397
1398 cmdnode->callback = NULL;
1399 cmdnode->callback_arg = (unsigned long)pdata_buf;
1400
1401 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1402
1403 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1404
1405 /* Set sequence number, command and INT option */
1406 priv->seqnum++;
1407 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1408
1409 cmdptr->command = cpu_to_le16(cmd_no);
1410 cmdptr->result = 0;
1411
1412 switch (cmd_no) {
1413 case CMD_802_11_PS_MODE:
1414 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1415 break;
1416
1417 case CMD_MAC_REG_ACCESS:
1418 case CMD_BBP_REG_ACCESS:
1419 case CMD_RF_REG_ACCESS:
1420 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1421 break;
1422
1423 case CMD_802_11_MONITOR_MODE:
1424 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1425 cmd_action, pdata_buf);
1426 break;
1427
1428 case CMD_802_11_RSSI:
1429 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1430 break;
1431
1432 case CMD_802_11_SET_AFC:
1433 case CMD_802_11_GET_AFC:
1434
1435 cmdptr->command = cpu_to_le16(cmd_no);
1436 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1437 S_DS_GEN);
1438
1439 memmove(&cmdptr->params.afc,
1440 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1441
1442 ret = 0;
1443 goto done;
1444
1445 case CMD_802_11D_DOMAIN_INFO:
1446 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1447 cmd_no, cmd_action);
1448 break;
1449
1450 case CMD_802_11_TPC_CFG:
1451 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1452 cmdptr->size =
1453 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1454 S_DS_GEN);
1455
1456 memmove(&cmdptr->params.tpccfg,
1457 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1458
1459 ret = 0;
1460 break;
1461 case CMD_802_11_LED_GPIO_CTRL:
1462 {
1463 struct mrvl_ie_ledgpio *gpio =
1464 (struct mrvl_ie_ledgpio*)
1465 cmdptr->params.ledgpio.data;
1466
1467 memmove(&cmdptr->params.ledgpio,
1468 pdata_buf,
1469 sizeof(struct cmd_ds_802_11_led_ctrl));
1470
1471 cmdptr->command =
1472 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1473
1474 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1475 cmdptr->size =
1476 cpu_to_le16(le16_to_cpu(gpio->header.len)
1477 + S_DS_GEN
1478 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1479 gpio->header.len = gpio->header.len;
1480
1481 ret = 0;
1482 break;
1483 }
1484
1485 case CMD_BT_ACCESS:
1486 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1487 break;
1488
1489 case CMD_FWT_ACCESS:
1490 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1491 break;
1492
1493 case CMD_GET_TSF:
1494 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1495 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1496 S_DS_GEN);
1497 ret = 0;
1498 break;
1499 case CMD_802_11_BEACON_CTRL:
1500 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1501 break;
1502 default:
1503 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1504 ret = -1;
1505 break;
1506 }
1507
1508 /* return error, since the command preparation failed */
1509 if (ret != 0) {
1510 lbs_deb_host("PREP_CMD: command preparation failed\n");
1511 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1512 ret = -1;
1513 goto done;
1514 }
1515
1516 cmdnode->cmdwaitqwoken = 0;
1517
1518 lbs_queue_cmd(priv, cmdnode);
1519 wake_up_interruptible(&priv->waitq);
1520
1521 if (wait_option & CMD_OPTION_WAITFORRSP) {
1522 lbs_deb_host("PREP_CMD: wait for response\n");
1523 might_sleep();
1524 wait_event_interruptible(cmdnode->cmdwait_q,
1525 cmdnode->cmdwaitqwoken);
1526 }
1527
1528 spin_lock_irqsave(&priv->driver_lock, flags);
1529 if (priv->cur_cmd_retcode) {
1530 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1531 priv->cur_cmd_retcode);
1532 priv->cur_cmd_retcode = 0;
1533 ret = -1;
1534 }
1535 spin_unlock_irqrestore(&priv->driver_lock, flags);
1536
1537 done:
1538 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1539 return ret;
1540 }
1541
1542 /**
1543 * @brief This function allocates the command buffer and link
1544 * it to command free queue.
1545 *
1546 * @param priv A pointer to struct lbs_private structure
1547 * @return 0 or -1
1548 */
1549 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1550 {
1551 int ret = 0;
1552 u32 bufsize;
1553 u32 i;
1554 struct cmd_ctrl_node *cmdarray;
1555
1556 lbs_deb_enter(LBS_DEB_HOST);
1557
1558 /* Allocate and initialize the command array */
1559 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1560 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1561 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1562 ret = -1;
1563 goto done;
1564 }
1565 priv->cmd_array = cmdarray;
1566
1567 /* Allocate and initialize each command buffer in the command array */
1568 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1569 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1570 if (!cmdarray[i].cmdbuf) {
1571 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1572 ret = -1;
1573 goto done;
1574 }
1575 }
1576
1577 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1578 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1579 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1580 }
1581 ret = 0;
1582
1583 done:
1584 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1585 return ret;
1586 }
1587
1588 /**
1589 * @brief This function frees the command buffer.
1590 *
1591 * @param priv A pointer to struct lbs_private structure
1592 * @return 0 or -1
1593 */
1594 int lbs_free_cmd_buffer(struct lbs_private *priv)
1595 {
1596 struct cmd_ctrl_node *cmdarray;
1597 unsigned int i;
1598
1599 lbs_deb_enter(LBS_DEB_HOST);
1600
1601 /* need to check if cmd array is allocated or not */
1602 if (priv->cmd_array == NULL) {
1603 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1604 goto done;
1605 }
1606
1607 cmdarray = priv->cmd_array;
1608
1609 /* Release shared memory buffers */
1610 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1611 if (cmdarray[i].cmdbuf) {
1612 kfree(cmdarray[i].cmdbuf);
1613 cmdarray[i].cmdbuf = NULL;
1614 }
1615 }
1616
1617 /* Release cmd_ctrl_node */
1618 if (priv->cmd_array) {
1619 kfree(priv->cmd_array);
1620 priv->cmd_array = NULL;
1621 }
1622
1623 done:
1624 lbs_deb_leave(LBS_DEB_HOST);
1625 return 0;
1626 }
1627
1628 /**
1629 * @brief This function gets a free command node if available in
1630 * command free queue.
1631 *
1632 * @param priv A pointer to struct lbs_private structure
1633 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1634 */
1635 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1636 {
1637 struct cmd_ctrl_node *tempnode;
1638 unsigned long flags;
1639
1640 lbs_deb_enter(LBS_DEB_HOST);
1641
1642 if (!priv)
1643 return NULL;
1644
1645 spin_lock_irqsave(&priv->driver_lock, flags);
1646
1647 if (!list_empty(&priv->cmdfreeq)) {
1648 tempnode = list_first_entry(&priv->cmdfreeq,
1649 struct cmd_ctrl_node, list);
1650 list_del(&tempnode->list);
1651 } else {
1652 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1653 tempnode = NULL;
1654 }
1655
1656 spin_unlock_irqrestore(&priv->driver_lock, flags);
1657
1658 lbs_deb_leave(LBS_DEB_HOST);
1659 return tempnode;
1660 }
1661
1662 /**
1663 * @brief This function executes next command in command
1664 * pending queue. It will put firmware back to PS mode
1665 * if applicable.
1666 *
1667 * @param priv A pointer to struct lbs_private structure
1668 * @return 0 or -1
1669 */
1670 int lbs_execute_next_command(struct lbs_private *priv)
1671 {
1672 struct cmd_ctrl_node *cmdnode = NULL;
1673 struct cmd_header *cmd;
1674 unsigned long flags;
1675 int ret = 0;
1676
1677 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1678 * only caller to us is lbs_thread() and we get even when a
1679 * data packet is received */
1680 lbs_deb_enter(LBS_DEB_THREAD);
1681
1682 spin_lock_irqsave(&priv->driver_lock, flags);
1683
1684 if (priv->cur_cmd) {
1685 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1686 spin_unlock_irqrestore(&priv->driver_lock, flags);
1687 ret = -1;
1688 goto done;
1689 }
1690
1691 if (!list_empty(&priv->cmdpendingq)) {
1692 cmdnode = list_first_entry(&priv->cmdpendingq,
1693 struct cmd_ctrl_node, list);
1694 }
1695
1696 spin_unlock_irqrestore(&priv->driver_lock, flags);
1697
1698 if (cmdnode) {
1699 cmd = cmdnode->cmdbuf;
1700
1701 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1702 if ((priv->psstate == PS_STATE_SLEEP) ||
1703 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1704 lbs_deb_host(
1705 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1706 le16_to_cpu(cmd->command),
1707 priv->psstate);
1708 ret = -1;
1709 goto done;
1710 }
1711 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1712 "0x%04x in psstate %d\n",
1713 le16_to_cpu(cmd->command), priv->psstate);
1714 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1715 /*
1716 * 1. Non-PS command:
1717 * Queue it. set needtowakeup to TRUE if current state
1718 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1719 * 2. PS command but not Exit_PS:
1720 * Ignore it.
1721 * 3. PS command Exit_PS:
1722 * Set needtowakeup to TRUE if current state is SLEEP,
1723 * otherwise send this command down to firmware
1724 * immediately.
1725 */
1726 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1727 /* Prepare to send Exit PS,
1728 * this non PS command will be sent later */
1729 if ((priv->psstate == PS_STATE_SLEEP)
1730 || (priv->psstate == PS_STATE_PRE_SLEEP)
1731 ) {
1732 /* w/ new scheme, it will not reach here.
1733 since it is blocked in main_thread. */
1734 priv->needtowakeup = 1;
1735 } else
1736 lbs_ps_wakeup(priv, 0);
1737
1738 ret = 0;
1739 goto done;
1740 } else {
1741 /*
1742 * PS command. Ignore it if it is not Exit_PS.
1743 * otherwise send it down immediately.
1744 */
1745 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1746
1747 lbs_deb_host(
1748 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1749 psm->action);
1750 if (psm->action !=
1751 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1752 lbs_deb_host(
1753 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1754 list_del(&cmdnode->list);
1755 spin_lock_irqsave(&priv->driver_lock, flags);
1756 lbs_complete_command(priv, cmdnode, 0);
1757 spin_unlock_irqrestore(&priv->driver_lock, flags);
1758
1759 ret = 0;
1760 goto done;
1761 }
1762
1763 if ((priv->psstate == PS_STATE_SLEEP) ||
1764 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1765 lbs_deb_host(
1766 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1767 list_del(&cmdnode->list);
1768 spin_lock_irqsave(&priv->driver_lock, flags);
1769 lbs_complete_command(priv, cmdnode, 0);
1770 spin_unlock_irqrestore(&priv->driver_lock, flags);
1771 priv->needtowakeup = 1;
1772
1773 ret = 0;
1774 goto done;
1775 }
1776
1777 lbs_deb_host(
1778 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1779 }
1780 }
1781 list_del(&cmdnode->list);
1782 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1783 le16_to_cpu(cmd->command));
1784 lbs_submit_command(priv, cmdnode);
1785 } else {
1786 /*
1787 * check if in power save mode, if yes, put the device back
1788 * to PS mode
1789 */
1790 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1791 (priv->psstate == PS_STATE_FULL_POWER) &&
1792 ((priv->connect_status == LBS_CONNECTED) ||
1793 (priv->mesh_connect_status == LBS_CONNECTED))) {
1794 if (priv->secinfo.WPAenabled ||
1795 priv->secinfo.WPA2enabled) {
1796 /* check for valid WPA group keys */
1797 if (priv->wpa_mcast_key.len ||
1798 priv->wpa_unicast_key.len) {
1799 lbs_deb_host(
1800 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1801 " go back to PS_SLEEP");
1802 lbs_ps_sleep(priv, 0);
1803 }
1804 } else {
1805 lbs_deb_host(
1806 "EXEC_NEXT_CMD: cmdpendingq empty, "
1807 "go back to PS_SLEEP");
1808 lbs_ps_sleep(priv, 0);
1809 }
1810 }
1811 }
1812
1813 ret = 0;
1814 done:
1815 lbs_deb_leave(LBS_DEB_THREAD);
1816 return ret;
1817 }
1818
1819 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1820 {
1821 union iwreq_data iwrq;
1822 u8 buf[50];
1823
1824 lbs_deb_enter(LBS_DEB_WEXT);
1825
1826 memset(&iwrq, 0, sizeof(union iwreq_data));
1827 memset(buf, 0, sizeof(buf));
1828
1829 snprintf(buf, sizeof(buf) - 1, "%s", str);
1830
1831 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1832
1833 /* Send Event to upper layer */
1834 lbs_deb_wext("event indication string %s\n", (char *)buf);
1835 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1836 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1837
1838 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1839
1840 lbs_deb_leave(LBS_DEB_WEXT);
1841 }
1842
1843 static void lbs_send_confirmsleep(struct lbs_private *priv)
1844 {
1845 unsigned long flags;
1846 int ret;
1847
1848 lbs_deb_enter(LBS_DEB_HOST);
1849 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1850 sizeof(confirm_sleep));
1851
1852 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1853 sizeof(confirm_sleep));
1854 if (ret) {
1855 lbs_pr_alert("confirm_sleep failed\n");
1856 goto out;
1857 }
1858
1859 spin_lock_irqsave(&priv->driver_lock, flags);
1860
1861 /* We don't get a response on the sleep-confirmation */
1862 priv->dnld_sent = DNLD_RES_RECEIVED;
1863
1864 /* If nothing to do, go back to sleep (?) */
1865 if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1866 priv->psstate = PS_STATE_SLEEP;
1867
1868 spin_unlock_irqrestore(&priv->driver_lock, flags);
1869
1870 out:
1871 lbs_deb_leave(LBS_DEB_HOST);
1872 }
1873
1874 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1875 {
1876 lbs_deb_enter(LBS_DEB_HOST);
1877
1878 /*
1879 * PS is currently supported only in Infrastructure mode
1880 * Remove this check if it is to be supported in IBSS mode also
1881 */
1882
1883 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1884 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1885
1886 lbs_deb_leave(LBS_DEB_HOST);
1887 }
1888
1889 /**
1890 * @brief This function sends Exit_PS command to firmware.
1891 *
1892 * @param priv A pointer to struct lbs_private structure
1893 * @param wait_option wait response or not
1894 * @return n/a
1895 */
1896 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1897 {
1898 __le32 Localpsmode;
1899
1900 lbs_deb_enter(LBS_DEB_HOST);
1901
1902 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1903
1904 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1905 CMD_SUBCMD_EXIT_PS,
1906 wait_option, 0, &Localpsmode);
1907
1908 lbs_deb_leave(LBS_DEB_HOST);
1909 }
1910
1911 /**
1912 * @brief This function checks condition and prepares to
1913 * send sleep confirm command to firmware if ok.
1914 *
1915 * @param priv A pointer to struct lbs_private structure
1916 * @param psmode Power Saving mode
1917 * @return n/a
1918 */
1919 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1920 {
1921 unsigned long flags =0;
1922 int allowed = 1;
1923
1924 lbs_deb_enter(LBS_DEB_HOST);
1925
1926 spin_lock_irqsave(&priv->driver_lock, flags);
1927 if (priv->dnld_sent) {
1928 allowed = 0;
1929 lbs_deb_host("dnld_sent was set\n");
1930 }
1931
1932 /* In-progress command? */
1933 if (priv->cur_cmd) {
1934 allowed = 0;
1935 lbs_deb_host("cur_cmd was set\n");
1936 }
1937
1938 /* Pending events or command responses? */
1939 if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1940 allowed = 0;
1941 lbs_deb_host("pending events or command responses\n");
1942 }
1943 spin_unlock_irqrestore(&priv->driver_lock, flags);
1944
1945 if (allowed) {
1946 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1947 lbs_send_confirmsleep(priv);
1948 } else {
1949 lbs_deb_host("sleep confirm has been delayed\n");
1950 }
1951
1952 lbs_deb_leave(LBS_DEB_HOST);
1953 }
1954
1955
1956 /**
1957 * @brief Configures the transmission power control functionality.
1958 *
1959 * @param priv A pointer to struct lbs_private structure
1960 * @param enable Transmission power control enable
1961 * @param p0 Power level when link quality is good (dBm).
1962 * @param p1 Power level when link quality is fair (dBm).
1963 * @param p2 Power level when link quality is poor (dBm).
1964 * @param usesnr Use Signal to Noise Ratio in TPC
1965 *
1966 * @return 0 on success
1967 */
1968 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
1969 int8_t p2, int usesnr)
1970 {
1971 struct cmd_ds_802_11_tpc_cfg cmd;
1972 int ret;
1973
1974 memset(&cmd, 0, sizeof(cmd));
1975 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1976 cmd.action = cpu_to_le16(CMD_ACT_SET);
1977 cmd.enable = !!enable;
1978 cmd.usesnr = !!usesnr;
1979 cmd.P0 = p0;
1980 cmd.P1 = p1;
1981 cmd.P2 = p2;
1982
1983 ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
1984
1985 return ret;
1986 }
1987
1988 /**
1989 * @brief Configures the power adaptation settings.
1990 *
1991 * @param priv A pointer to struct lbs_private structure
1992 * @param enable Power adaptation enable
1993 * @param p0 Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1994 * @param p1 Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1995 * @param p2 Power level for 48 and 54 Mbps (dBm).
1996 *
1997 * @return 0 on Success
1998 */
1999
2000 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
2001 int8_t p1, int8_t p2)
2002 {
2003 struct cmd_ds_802_11_pa_cfg cmd;
2004 int ret;
2005
2006 memset(&cmd, 0, sizeof(cmd));
2007 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
2008 cmd.action = cpu_to_le16(CMD_ACT_SET);
2009 cmd.enable = !!enable;
2010 cmd.P0 = p0;
2011 cmd.P1 = p1;
2012 cmd.P2 = p2;
2013
2014 ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
2015
2016 return ret;
2017 }
2018
2019
2020 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
2021 uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
2022 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2023 unsigned long callback_arg)
2024 {
2025 struct cmd_ctrl_node *cmdnode;
2026
2027 lbs_deb_enter(LBS_DEB_HOST);
2028
2029 if (priv->surpriseremoved) {
2030 lbs_deb_host("PREP_CMD: card removed\n");
2031 cmdnode = ERR_PTR(-ENOENT);
2032 goto done;
2033 }
2034
2035 cmdnode = lbs_get_cmd_ctrl_node(priv);
2036 if (cmdnode == NULL) {
2037 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2038
2039 /* Wake up main thread to execute next command */
2040 wake_up_interruptible(&priv->waitq);
2041 cmdnode = ERR_PTR(-ENOBUFS);
2042 goto done;
2043 }
2044
2045 cmdnode->callback = callback;
2046 cmdnode->callback_arg = callback_arg;
2047
2048 /* Copy the incoming command to the buffer */
2049 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2050
2051 /* Set sequence number, clean result, move to buffer */
2052 priv->seqnum++;
2053 cmdnode->cmdbuf->command = cpu_to_le16(command);
2054 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
2055 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
2056 cmdnode->cmdbuf->result = 0;
2057
2058 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2059
2060 cmdnode->cmdwaitqwoken = 0;
2061 lbs_queue_cmd(priv, cmdnode);
2062 wake_up_interruptible(&priv->waitq);
2063
2064 done:
2065 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2066 return cmdnode;
2067 }
2068
2069 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2070 struct cmd_header *in_cmd, int in_cmd_size)
2071 {
2072 lbs_deb_enter(LBS_DEB_CMD);
2073 __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2074 lbs_cmd_async_callback, 0);
2075 lbs_deb_leave(LBS_DEB_CMD);
2076 }
2077
2078 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2079 struct cmd_header *in_cmd, int in_cmd_size,
2080 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2081 unsigned long callback_arg)
2082 {
2083 struct cmd_ctrl_node *cmdnode;
2084 unsigned long flags;
2085 int ret = 0;
2086
2087 lbs_deb_enter(LBS_DEB_HOST);
2088
2089 cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2090 callback, callback_arg);
2091 if (IS_ERR(cmdnode)) {
2092 ret = PTR_ERR(cmdnode);
2093 goto done;
2094 }
2095
2096 might_sleep();
2097 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2098
2099 spin_lock_irqsave(&priv->driver_lock, flags);
2100 ret = cmdnode->result;
2101 if (ret)
2102 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2103 command, ret);
2104
2105 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2106 spin_unlock_irqrestore(&priv->driver_lock, flags);
2107
2108 done:
2109 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2110 return ret;
2111 }
2112 EXPORT_SYMBOL_GPL(__lbs_cmd);
2113
2114
Linux kernel - Deliverables
This page took 0.096765 seconds and 6 git commands to generate.