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Merge branch 'linus' into x86/xen
[mirror_ubuntu-hirsute-kernel.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 DECLARE_MAC_BUF(mac);
91
92 lbs_deb_enter(LBS_DEB_CMD);
93
94 memset(&cmd, 0, sizeof(cmd));
95 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
96 memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
97 ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
98 if (ret)
99 goto out;
100
101 priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
102
103 /* The firmware release is in an interesting format: the patch
104 * level is in the most significant nibble ... so fix that: */
105 priv->fwrelease = le32_to_cpu(cmd.fwrelease);
106 priv->fwrelease = (priv->fwrelease << 8) |
107 (priv->fwrelease >> 24 & 0xff);
108
109 /* Some firmware capabilities:
110 * CF card firmware 5.0.16p0: cap 0x00000303
111 * USB dongle firmware 5.110.17p2: cap 0x00000303
112 */
113 lbs_pr_info("%s, fw %u.%u.%up%u, cap 0x%08x\n",
114 print_mac(mac, cmd.permanentaddr),
115 priv->fwrelease >> 24 & 0xff,
116 priv->fwrelease >> 16 & 0xff,
117 priv->fwrelease >> 8 & 0xff,
118 priv->fwrelease & 0xff,
119 priv->fwcapinfo);
120 lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
121 cmd.hwifversion, cmd.version);
122
123 /* Clamp region code to 8-bit since FW spec indicates that it should
124 * only ever be 8-bit, even though the field size is 16-bit. Some firmware
125 * returns non-zero high 8 bits here.
126 */
127 priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
128
129 for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
130 /* use the region code to search for the index */
131 if (priv->regioncode == lbs_region_code_to_index[i])
132 break;
133 }
134
135 /* if it's unidentified region code, use the default (USA) */
136 if (i >= MRVDRV_MAX_REGION_CODE) {
137 priv->regioncode = 0x10;
138 lbs_pr_info("unidentified region code; using the default (USA)\n");
139 }
140
141 if (priv->current_addr[0] == 0xff)
142 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
143
144 memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
145 if (priv->mesh_dev)
146 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
147
148 if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
149 ret = -1;
150 goto out;
151 }
152
153 if (lbs_set_universaltable(priv, 0)) {
154 ret = -1;
155 goto out;
156 }
157
158 out:
159 lbs_deb_leave(LBS_DEB_CMD);
160 return ret;
161 }
162
163 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
164 {
165 struct cmd_ds_host_sleep cmd_config;
166 int ret;
167
168 cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
169 cmd_config.criteria = cpu_to_le32(criteria);
170 cmd_config.gpio = priv->wol_gpio;
171 cmd_config.gap = priv->wol_gap;
172
173 ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
174 if (!ret) {
175 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
176 priv->wol_criteria = criteria;
177 } else {
178 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
179 }
180
181 return ret;
182 }
183 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
184
185 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
186 u16 cmd_action)
187 {
188 struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
189
190 lbs_deb_enter(LBS_DEB_CMD);
191
192 cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
193 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
194 S_DS_GEN);
195 psm->action = cpu_to_le16(cmd_action);
196 psm->multipledtim = 0;
197 switch (cmd_action) {
198 case CMD_SUBCMD_ENTER_PS:
199 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
200
201 psm->locallisteninterval = 0;
202 psm->nullpktinterval = 0;
203 psm->multipledtim =
204 cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
205 break;
206
207 case CMD_SUBCMD_EXIT_PS:
208 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
209 break;
210
211 case CMD_SUBCMD_SLEEP_CONFIRMED:
212 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
213 break;
214
215 default:
216 break;
217 }
218
219 lbs_deb_leave(LBS_DEB_CMD);
220 return 0;
221 }
222
223 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
224 uint16_t cmd_action, uint16_t *timeout)
225 {
226 struct cmd_ds_802_11_inactivity_timeout cmd;
227 int ret;
228
229 lbs_deb_enter(LBS_DEB_CMD);
230
231 cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
232 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
233
234 cmd.action = cpu_to_le16(cmd_action);
235
236 if (cmd_action == CMD_ACT_SET)
237 cmd.timeout = cpu_to_le16(*timeout);
238 else
239 cmd.timeout = 0;
240
241 ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
242
243 if (!ret)
244 *timeout = le16_to_cpu(cmd.timeout);
245
246 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
247 return 0;
248 }
249
250 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
251 struct sleep_params *sp)
252 {
253 struct cmd_ds_802_11_sleep_params cmd;
254 int ret;
255
256 lbs_deb_enter(LBS_DEB_CMD);
257
258 if (cmd_action == CMD_ACT_GET) {
259 memset(&cmd, 0, sizeof(cmd));
260 } else {
261 cmd.error = cpu_to_le16(sp->sp_error);
262 cmd.offset = cpu_to_le16(sp->sp_offset);
263 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
264 cmd.calcontrol = sp->sp_calcontrol;
265 cmd.externalsleepclk = sp->sp_extsleepclk;
266 cmd.reserved = cpu_to_le16(sp->sp_reserved);
267 }
268 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
269 cmd.action = cpu_to_le16(cmd_action);
270
271 ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
272
273 if (!ret) {
274 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
275 "calcontrol 0x%x extsleepclk 0x%x\n",
276 le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
277 le16_to_cpu(cmd.stabletime), cmd.calcontrol,
278 cmd.externalsleepclk);
279
280 sp->sp_error = le16_to_cpu(cmd.error);
281 sp->sp_offset = le16_to_cpu(cmd.offset);
282 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
283 sp->sp_calcontrol = cmd.calcontrol;
284 sp->sp_extsleepclk = cmd.externalsleepclk;
285 sp->sp_reserved = le16_to_cpu(cmd.reserved);
286 }
287
288 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
289 return 0;
290 }
291
292 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
293 struct assoc_request *assoc)
294 {
295 struct cmd_ds_802_11_set_wep cmd;
296 int ret = 0;
297
298 lbs_deb_enter(LBS_DEB_CMD);
299
300 memset(&cmd, 0, sizeof(cmd));
301 cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
302 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
303
304 cmd.action = cpu_to_le16(cmd_action);
305
306 if (cmd_action == CMD_ACT_ADD) {
307 int i;
308
309 /* default tx key index */
310 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
311 CMD_WEP_KEY_INDEX_MASK);
312
313 /* Copy key types and material to host command structure */
314 for (i = 0; i < 4; i++) {
315 struct enc_key *pkey = &assoc->wep_keys[i];
316
317 switch (pkey->len) {
318 case KEY_LEN_WEP_40:
319 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
320 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
321 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
322 break;
323 case KEY_LEN_WEP_104:
324 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
325 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
326 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
327 break;
328 case 0:
329 break;
330 default:
331 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
332 i, pkey->len);
333 ret = -1;
334 goto done;
335 break;
336 }
337 }
338 } else if (cmd_action == CMD_ACT_REMOVE) {
339 /* ACT_REMOVE clears _all_ WEP keys */
340
341 /* default tx key index */
342 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
343 CMD_WEP_KEY_INDEX_MASK);
344 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
345 }
346
347 ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
348 done:
349 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
350 return ret;
351 }
352
353 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
354 uint16_t *enable)
355 {
356 struct cmd_ds_802_11_enable_rsn cmd;
357 int ret;
358
359 lbs_deb_enter(LBS_DEB_CMD);
360
361 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
362 cmd.action = cpu_to_le16(cmd_action);
363
364 if (cmd_action == CMD_ACT_GET)
365 cmd.enable = 0;
366 else {
367 if (*enable)
368 cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
369 else
370 cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
371 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
372 }
373
374 ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
375 if (!ret && cmd_action == CMD_ACT_GET)
376 *enable = le16_to_cpu(cmd.enable);
377
378 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
379 return ret;
380 }
381
382 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
383 struct enc_key *key)
384 {
385 lbs_deb_enter(LBS_DEB_CMD);
386
387 if (key->flags & KEY_INFO_WPA_ENABLED)
388 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
389 if (key->flags & KEY_INFO_WPA_UNICAST)
390 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
391 if (key->flags & KEY_INFO_WPA_MCAST)
392 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
393
394 keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
395 keyparam->keytypeid = cpu_to_le16(key->type);
396 keyparam->keylen = cpu_to_le16(key->len);
397 memcpy(keyparam->key, key->key, key->len);
398
399 /* Length field doesn't include the {type,length} header */
400 keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
401 lbs_deb_leave(LBS_DEB_CMD);
402 }
403
404 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
405 struct assoc_request *assoc)
406 {
407 struct cmd_ds_802_11_key_material cmd;
408 int ret = 0;
409 int index = 0;
410
411 lbs_deb_enter(LBS_DEB_CMD);
412
413 cmd.action = cpu_to_le16(cmd_action);
414 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
415
416 if (cmd_action == CMD_ACT_GET) {
417 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
418 } else {
419 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
420
421 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
422 set_one_wpa_key(&cmd.keyParamSet[index],
423 &assoc->wpa_unicast_key);
424 index++;
425 }
426
427 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
428 set_one_wpa_key(&cmd.keyParamSet[index],
429 &assoc->wpa_mcast_key);
430 index++;
431 }
432
433 /* The common header and as many keys as we included */
434 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
435 keyParamSet[index]));
436 }
437 ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
438 /* Copy the returned key to driver private data */
439 if (!ret && cmd_action == CMD_ACT_GET) {
440 void *buf_ptr = cmd.keyParamSet;
441 void *resp_end = &(&cmd)[1];
442
443 while (buf_ptr < resp_end) {
444 struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
445 struct enc_key *key;
446 uint16_t param_set_len = le16_to_cpu(keyparam->length);
447 uint16_t key_len = le16_to_cpu(keyparam->keylen);
448 uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
449 uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
450 void *end;
451
452 end = (void *)keyparam + sizeof(keyparam->type)
453 + sizeof(keyparam->length) + param_set_len;
454
455 /* Make sure we don't access past the end of the IEs */
456 if (end > resp_end)
457 break;
458
459 if (key_flags & KEY_INFO_WPA_UNICAST)
460 key = &priv->wpa_unicast_key;
461 else if (key_flags & KEY_INFO_WPA_MCAST)
462 key = &priv->wpa_mcast_key;
463 else
464 break;
465
466 /* Copy returned key into driver */
467 memset(key, 0, sizeof(struct enc_key));
468 if (key_len > sizeof(key->key))
469 break;
470 key->type = key_type;
471 key->flags = key_flags;
472 key->len = key_len;
473 memcpy(key->key, keyparam->key, key->len);
474
475 buf_ptr = end + 1;
476 }
477 }
478
479 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
480 return ret;
481 }
482
483 /**
484 * @brief Set an SNMP MIB value
485 *
486 * @param priv A pointer to struct lbs_private structure
487 * @param oid The OID to set in the firmware
488 * @param val Value to set the OID to
489 *
490 * @return 0 on success, error on failure
491 */
492 int lbs_set_snmp_mib(struct lbs_private *priv, u32 oid, u16 val)
493 {
494 struct cmd_ds_802_11_snmp_mib cmd;
495 int ret;
496
497 lbs_deb_enter(LBS_DEB_CMD);
498
499 memset(&cmd, 0, sizeof (cmd));
500 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
501 cmd.action = cpu_to_le16(CMD_ACT_SET);
502 cmd.oid = cpu_to_le16((u16) oid);
503
504 switch (oid) {
505 case SNMP_MIB_OID_BSS_TYPE:
506 cmd.bufsize = cpu_to_le16(sizeof(u8));
507 cmd.value[0] = (val == IW_MODE_ADHOC) ? 2 : 1;
508 break;
509 case SNMP_MIB_OID_11D_ENABLE:
510 case SNMP_MIB_OID_FRAG_THRESHOLD:
511 case SNMP_MIB_OID_RTS_THRESHOLD:
512 case SNMP_MIB_OID_SHORT_RETRY_LIMIT:
513 case SNMP_MIB_OID_LONG_RETRY_LIMIT:
514 cmd.bufsize = cpu_to_le16(sizeof(u16));
515 *((__le16 *)(&cmd.value)) = cpu_to_le16(val);
516 break;
517 default:
518 lbs_deb_cmd("SNMP_CMD: (set) unhandled OID 0x%x\n", oid);
519 ret = -EINVAL;
520 goto out;
521 }
522
523 lbs_deb_cmd("SNMP_CMD: (set) oid 0x%x, oid size 0x%x, value 0x%x\n",
524 le16_to_cpu(cmd.oid), le16_to_cpu(cmd.bufsize), val);
525
526 ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
527
528 out:
529 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
530 return ret;
531 }
532
533 /**
534 * @brief Get an SNMP MIB value
535 *
536 * @param priv A pointer to struct lbs_private structure
537 * @param oid The OID to retrieve from the firmware
538 * @param out_val Location for the returned value
539 *
540 * @return 0 on success, error on failure
541 */
542 int lbs_get_snmp_mib(struct lbs_private *priv, u32 oid, u16 *out_val)
543 {
544 struct cmd_ds_802_11_snmp_mib cmd;
545 int ret;
546
547 lbs_deb_enter(LBS_DEB_CMD);
548
549 memset(&cmd, 0, sizeof (cmd));
550 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
551 cmd.action = cpu_to_le16(CMD_ACT_GET);
552 cmd.oid = cpu_to_le16(oid);
553
554 ret = lbs_cmd_with_response(priv, CMD_802_11_SNMP_MIB, &cmd);
555 if (ret)
556 goto out;
557
558 switch (le16_to_cpu(cmd.bufsize)) {
559 case sizeof(u8):
560 if (oid == SNMP_MIB_OID_BSS_TYPE) {
561 if (cmd.value[0] == 2)
562 *out_val = IW_MODE_ADHOC;
563 else
564 *out_val = IW_MODE_INFRA;
565 } else
566 *out_val = cmd.value[0];
567 break;
568 case sizeof(u16):
569 *out_val = le16_to_cpu(*((__le16 *)(&cmd.value)));
570 break;
571 default:
572 lbs_deb_cmd("SNMP_CMD: (get) unhandled OID 0x%x size %d\n",
573 oid, le16_to_cpu(cmd.bufsize));
574 break;
575 }
576
577 out:
578 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
579 return ret;
580 }
581
582 /**
583 * @brief Get the min, max, and current TX power
584 *
585 * @param priv A pointer to struct lbs_private structure
586 * @param curlevel Current power level in dBm
587 * @param minlevel Minimum supported power level in dBm (optional)
588 * @param maxlevel Maximum supported power level in dBm (optional)
589 *
590 * @return 0 on success, error on failure
591 */
592 int lbs_get_tx_power(struct lbs_private *priv, s16 *curlevel, s16 *minlevel,
593 s16 *maxlevel)
594 {
595 struct cmd_ds_802_11_rf_tx_power cmd;
596 int ret;
597
598 lbs_deb_enter(LBS_DEB_CMD);
599
600 memset(&cmd, 0, sizeof(cmd));
601 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
602 cmd.action = cpu_to_le16(CMD_ACT_GET);
603
604 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
605 if (ret == 0) {
606 *curlevel = le16_to_cpu(cmd.curlevel);
607 if (minlevel)
608 *minlevel = le16_to_cpu(cmd.minlevel);
609 if (maxlevel)
610 *maxlevel = le16_to_cpu(cmd.maxlevel);
611 }
612
613 lbs_deb_leave(LBS_DEB_CMD);
614 return ret;
615 }
616
617 /**
618 * @brief Set the TX power
619 *
620 * @param priv A pointer to struct lbs_private structure
621 * @param dbm The desired power level in dBm
622 *
623 * @return 0 on success, error on failure
624 */
625 int lbs_set_tx_power(struct lbs_private *priv, s16 dbm)
626 {
627 struct cmd_ds_802_11_rf_tx_power cmd;
628 int ret;
629
630 lbs_deb_enter(LBS_DEB_CMD);
631
632 memset(&cmd, 0, sizeof(cmd));
633 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
634 cmd.action = cpu_to_le16(CMD_ACT_SET);
635 cmd.curlevel = cpu_to_le16(dbm);
636
637 lbs_deb_cmd("SET_RF_TX_POWER: %d dBm\n", dbm);
638
639 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_TX_POWER, &cmd);
640
641 lbs_deb_leave(LBS_DEB_CMD);
642 return ret;
643 }
644
645 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
646 u16 cmd_action, void *pdata_buf)
647 {
648 struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
649
650 cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
651 cmd->size =
652 cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
653 S_DS_GEN);
654
655 monitor->action = cpu_to_le16(cmd_action);
656 if (cmd_action == CMD_ACT_SET) {
657 monitor->mode =
658 cpu_to_le16((u16) (*(u32 *) pdata_buf));
659 }
660
661 return 0;
662 }
663
664 static __le16 lbs_rate_to_fw_bitmap(int rate, int lower_rates_ok)
665 {
666 /* Bit Rate
667 * 15:13 Reserved
668 * 12 54 Mbps
669 * 11 48 Mbps
670 * 10 36 Mbps
671 * 9 24 Mbps
672 * 8 18 Mbps
673 * 7 12 Mbps
674 * 6 9 Mbps
675 * 5 6 Mbps
676 * 4 Reserved
677 * 3 11 Mbps
678 * 2 5.5 Mbps
679 * 1 2 Mbps
680 * 0 1 Mbps
681 **/
682
683 uint16_t ratemask;
684 int i = lbs_data_rate_to_fw_index(rate);
685 if (lower_rates_ok)
686 ratemask = (0x1fef >> (12 - i));
687 else
688 ratemask = (1 << i);
689 return cpu_to_le16(ratemask);
690 }
691
692 int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
693 uint16_t cmd_action)
694 {
695 struct cmd_ds_802_11_rate_adapt_rateset cmd;
696 int ret;
697
698 lbs_deb_enter(LBS_DEB_CMD);
699
700 if (!priv->cur_rate && !priv->enablehwauto)
701 return -EINVAL;
702
703 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
704
705 cmd.action = cpu_to_le16(cmd_action);
706 cmd.enablehwauto = cpu_to_le16(priv->enablehwauto);
707 cmd.bitmap = lbs_rate_to_fw_bitmap(priv->cur_rate, priv->enablehwauto);
708 ret = lbs_cmd_with_response(priv, CMD_802_11_RATE_ADAPT_RATESET, &cmd);
709 if (!ret && cmd_action == CMD_ACT_GET) {
710 priv->ratebitmap = le16_to_cpu(cmd.bitmap);
711 priv->enablehwauto = le16_to_cpu(cmd.enablehwauto);
712 }
713
714 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
715 return ret;
716 }
717 EXPORT_SYMBOL_GPL(lbs_cmd_802_11_rate_adapt_rateset);
718
719 /**
720 * @brief Set the data rate
721 *
722 * @param priv A pointer to struct lbs_private structure
723 * @param rate The desired data rate, or 0 to clear a locked rate
724 *
725 * @return 0 on success, error on failure
726 */
727 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
728 {
729 struct cmd_ds_802_11_data_rate cmd;
730 int ret = 0;
731
732 lbs_deb_enter(LBS_DEB_CMD);
733
734 memset(&cmd, 0, sizeof(cmd));
735 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
736
737 if (rate > 0) {
738 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
739 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
740 if (cmd.rates[0] == 0) {
741 lbs_deb_cmd("DATA_RATE: invalid requested rate of"
742 " 0x%02X\n", rate);
743 ret = 0;
744 goto out;
745 }
746 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
747 } else {
748 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
749 lbs_deb_cmd("DATA_RATE: setting auto\n");
750 }
751
752 ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
753 if (ret)
754 goto out;
755
756 lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
757
758 /* FIXME: get actual rates FW can do if this command actually returns
759 * all data rates supported.
760 */
761 priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
762 lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
763
764 out:
765 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
766 return ret;
767 }
768
769 /**
770 * @brief Get the radio channel
771 *
772 * @param priv A pointer to struct lbs_private structure
773 *
774 * @return The channel on success, error on failure
775 */
776 int lbs_get_channel(struct lbs_private *priv)
777 {
778 struct cmd_ds_802_11_rf_channel cmd;
779 int ret = 0;
780
781 lbs_deb_enter(LBS_DEB_CMD);
782
783 memset(&cmd, 0, sizeof(cmd));
784 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
785 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
786
787 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
788 if (ret)
789 goto out;
790
791 ret = le16_to_cpu(cmd.channel);
792 lbs_deb_cmd("current radio channel is %d\n", ret);
793
794 out:
795 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
796 return ret;
797 }
798
799 int lbs_update_channel(struct lbs_private *priv)
800 {
801 int ret;
802
803 /* the channel in f/w could be out of sync; get the current channel */
804 lbs_deb_enter(LBS_DEB_ASSOC);
805
806 ret = lbs_get_channel(priv);
807 if (ret > 0) {
808 priv->curbssparams.channel = ret;
809 ret = 0;
810 }
811 lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
812 return ret;
813 }
814
815 /**
816 * @brief Set the radio channel
817 *
818 * @param priv A pointer to struct lbs_private structure
819 * @param channel The desired channel, or 0 to clear a locked channel
820 *
821 * @return 0 on success, error on failure
822 */
823 int lbs_set_channel(struct lbs_private *priv, u8 channel)
824 {
825 struct cmd_ds_802_11_rf_channel cmd;
826 u8 old_channel = priv->curbssparams.channel;
827 int ret = 0;
828
829 lbs_deb_enter(LBS_DEB_CMD);
830
831 memset(&cmd, 0, sizeof(cmd));
832 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
833 cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
834 cmd.channel = cpu_to_le16(channel);
835
836 ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
837 if (ret)
838 goto out;
839
840 priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
841 lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
842 priv->curbssparams.channel);
843
844 out:
845 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
846 return ret;
847 }
848
849 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
850 struct cmd_ds_command *cmd)
851 {
852
853 lbs_deb_enter(LBS_DEB_CMD);
854 cmd->command = cpu_to_le16(CMD_802_11_RSSI);
855 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
856 cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
857
858 /* reset Beacon SNR/NF/RSSI values */
859 priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
860 priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
861 priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
862 priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
863 priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
864 priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
865
866 lbs_deb_leave(LBS_DEB_CMD);
867 return 0;
868 }
869
870 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
871 u8 cmd_action, void *pdata_buf)
872 {
873 struct lbs_offset_value *offval;
874
875 lbs_deb_enter(LBS_DEB_CMD);
876
877 offval = (struct lbs_offset_value *)pdata_buf;
878
879 switch (le16_to_cpu(cmdptr->command)) {
880 case CMD_MAC_REG_ACCESS:
881 {
882 struct cmd_ds_mac_reg_access *macreg;
883
884 cmdptr->size =
885 cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
886 + S_DS_GEN);
887 macreg =
888 (struct cmd_ds_mac_reg_access *)&cmdptr->params.
889 macreg;
890
891 macreg->action = cpu_to_le16(cmd_action);
892 macreg->offset = cpu_to_le16((u16) offval->offset);
893 macreg->value = cpu_to_le32(offval->value);
894
895 break;
896 }
897
898 case CMD_BBP_REG_ACCESS:
899 {
900 struct cmd_ds_bbp_reg_access *bbpreg;
901
902 cmdptr->size =
903 cpu_to_le16(sizeof
904 (struct cmd_ds_bbp_reg_access)
905 + S_DS_GEN);
906 bbpreg =
907 (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
908 bbpreg;
909
910 bbpreg->action = cpu_to_le16(cmd_action);
911 bbpreg->offset = cpu_to_le16((u16) offval->offset);
912 bbpreg->value = (u8) offval->value;
913
914 break;
915 }
916
917 case CMD_RF_REG_ACCESS:
918 {
919 struct cmd_ds_rf_reg_access *rfreg;
920
921 cmdptr->size =
922 cpu_to_le16(sizeof
923 (struct cmd_ds_rf_reg_access) +
924 S_DS_GEN);
925 rfreg =
926 (struct cmd_ds_rf_reg_access *)&cmdptr->params.
927 rfreg;
928
929 rfreg->action = cpu_to_le16(cmd_action);
930 rfreg->offset = cpu_to_le16((u16) offval->offset);
931 rfreg->value = (u8) offval->value;
932
933 break;
934 }
935
936 default:
937 break;
938 }
939
940 lbs_deb_leave(LBS_DEB_CMD);
941 return 0;
942 }
943
944 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
945 u16 cmd_action, void *pdata_buf)
946 {
947 struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
948 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
949
950 cmd->command = cpu_to_le16(CMD_BT_ACCESS);
951 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
952 cmd->result = 0;
953 bt_access->action = cpu_to_le16(cmd_action);
954
955 switch (cmd_action) {
956 case CMD_ACT_BT_ACCESS_ADD:
957 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
958 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
959 break;
960 case CMD_ACT_BT_ACCESS_DEL:
961 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
962 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
963 break;
964 case CMD_ACT_BT_ACCESS_LIST:
965 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
966 break;
967 case CMD_ACT_BT_ACCESS_RESET:
968 break;
969 case CMD_ACT_BT_ACCESS_SET_INVERT:
970 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
971 break;
972 case CMD_ACT_BT_ACCESS_GET_INVERT:
973 break;
974 default:
975 break;
976 }
977 lbs_deb_leave(LBS_DEB_CMD);
978 return 0;
979 }
980
981 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
982 u16 cmd_action, void *pdata_buf)
983 {
984 struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
985 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
986
987 cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
988 cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
989 cmd->result = 0;
990
991 if (pdata_buf)
992 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
993 else
994 memset(fwt_access, 0, sizeof(*fwt_access));
995
996 fwt_access->action = cpu_to_le16(cmd_action);
997
998 lbs_deb_leave(LBS_DEB_CMD);
999 return 0;
1000 }
1001
1002 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1003 struct cmd_ds_mesh_access *cmd)
1004 {
1005 int ret;
1006
1007 lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1008
1009 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1010 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1011 cmd->hdr.result = 0;
1012
1013 cmd->action = cpu_to_le16(cmd_action);
1014
1015 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1016
1017 lbs_deb_leave(LBS_DEB_CMD);
1018 return ret;
1019 }
1020
1021 static int __lbs_mesh_config_send(struct lbs_private *priv,
1022 struct cmd_ds_mesh_config *cmd,
1023 uint16_t action, uint16_t type)
1024 {
1025 int ret;
1026
1027 lbs_deb_enter(LBS_DEB_CMD);
1028
1029 cmd->hdr.command = cpu_to_le16(CMD_MESH_CONFIG);
1030 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
1031 cmd->hdr.result = 0;
1032
1033 cmd->type = cpu_to_le16(type);
1034 cmd->action = cpu_to_le16(action);
1035
1036 ret = lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
1037
1038 lbs_deb_leave(LBS_DEB_CMD);
1039 return ret;
1040 }
1041
1042 int lbs_mesh_config_send(struct lbs_private *priv,
1043 struct cmd_ds_mesh_config *cmd,
1044 uint16_t action, uint16_t type)
1045 {
1046 int ret;
1047
1048 if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
1049 return -EOPNOTSUPP;
1050
1051 ret = __lbs_mesh_config_send(priv, cmd, action, type);
1052 return ret;
1053 }
1054
1055 /* This function is the CMD_MESH_CONFIG legacy function. It only handles the
1056 * START and STOP actions. The extended actions supported by CMD_MESH_CONFIG
1057 * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
1058 * lbs_mesh_config_send.
1059 */
1060 int lbs_mesh_config(struct lbs_private *priv, uint16_t action, uint16_t chan)
1061 {
1062 struct cmd_ds_mesh_config cmd;
1063 struct mrvl_meshie *ie;
1064
1065 memset(&cmd, 0, sizeof(cmd));
1066 cmd.channel = cpu_to_le16(chan);
1067 ie = (struct mrvl_meshie *)cmd.data;
1068
1069 switch (action) {
1070 case CMD_ACT_MESH_CONFIG_START:
1071 ie->hdr.id = MFIE_TYPE_GENERIC;
1072 ie->val.oui[0] = 0x00;
1073 ie->val.oui[1] = 0x50;
1074 ie->val.oui[2] = 0x43;
1075 ie->val.type = MARVELL_MESH_IE_TYPE;
1076 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
1077 ie->val.version = MARVELL_MESH_IE_VERSION;
1078 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
1079 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
1080 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
1081 ie->val.mesh_id_len = priv->mesh_ssid_len;
1082 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
1083 ie->hdr.len = sizeof(struct mrvl_meshie_val) -
1084 IW_ESSID_MAX_SIZE + priv->mesh_ssid_len;
1085 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
1086 break;
1087 case CMD_ACT_MESH_CONFIG_STOP:
1088 break;
1089 default:
1090 return -1;
1091 }
1092 lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
1093 action, priv->mesh_tlv, chan,
1094 escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1095
1096 return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
1097 }
1098
1099 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1100 struct cmd_ds_command *cmd,
1101 u16 cmd_action)
1102 {
1103 struct cmd_ds_802_11_beacon_control
1104 *bcn_ctrl = &cmd->params.bcn_ctrl;
1105
1106 lbs_deb_enter(LBS_DEB_CMD);
1107 cmd->size =
1108 cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1109 + S_DS_GEN);
1110 cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1111
1112 bcn_ctrl->action = cpu_to_le16(cmd_action);
1113 bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1114 bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1115
1116 lbs_deb_leave(LBS_DEB_CMD);
1117 return 0;
1118 }
1119
1120 static void lbs_queue_cmd(struct lbs_private *priv,
1121 struct cmd_ctrl_node *cmdnode)
1122 {
1123 unsigned long flags;
1124 int addtail = 1;
1125
1126 lbs_deb_enter(LBS_DEB_HOST);
1127
1128 if (!cmdnode) {
1129 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1130 goto done;
1131 }
1132 if (!cmdnode->cmdbuf->size) {
1133 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1134 goto done;
1135 }
1136 cmdnode->result = 0;
1137
1138 /* Exit_PS command needs to be queued in the header always. */
1139 if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1140 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1141
1142 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1143 if (priv->psstate != PS_STATE_FULL_POWER)
1144 addtail = 0;
1145 }
1146 }
1147
1148 spin_lock_irqsave(&priv->driver_lock, flags);
1149
1150 if (addtail)
1151 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1152 else
1153 list_add(&cmdnode->list, &priv->cmdpendingq);
1154
1155 spin_unlock_irqrestore(&priv->driver_lock, flags);
1156
1157 lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1158 le16_to_cpu(cmdnode->cmdbuf->command));
1159
1160 done:
1161 lbs_deb_leave(LBS_DEB_HOST);
1162 }
1163
1164 static void lbs_submit_command(struct lbs_private *priv,
1165 struct cmd_ctrl_node *cmdnode)
1166 {
1167 unsigned long flags;
1168 struct cmd_header *cmd;
1169 uint16_t cmdsize;
1170 uint16_t command;
1171 int timeo = 3 * HZ;
1172 int ret;
1173
1174 lbs_deb_enter(LBS_DEB_HOST);
1175
1176 cmd = cmdnode->cmdbuf;
1177
1178 spin_lock_irqsave(&priv->driver_lock, flags);
1179 priv->cur_cmd = cmdnode;
1180 priv->cur_cmd_retcode = 0;
1181 spin_unlock_irqrestore(&priv->driver_lock, flags);
1182
1183 cmdsize = le16_to_cpu(cmd->size);
1184 command = le16_to_cpu(cmd->command);
1185
1186 /* These commands take longer */
1187 if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1188 command == CMD_802_11_AUTHENTICATE)
1189 timeo = 5 * HZ;
1190
1191 lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1192 command, le16_to_cpu(cmd->seqnum), cmdsize);
1193 lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1194
1195 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1196
1197 if (ret) {
1198 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1199 /* Let the timer kick in and retry, and potentially reset
1200 the whole thing if the condition persists */
1201 timeo = HZ/4;
1202 }
1203
1204 /* Setup the timer after transmit command */
1205 mod_timer(&priv->command_timer, jiffies + timeo);
1206
1207 lbs_deb_leave(LBS_DEB_HOST);
1208 }
1209
1210 /**
1211 * This function inserts command node to cmdfreeq
1212 * after cleans it. Requires priv->driver_lock held.
1213 */
1214 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1215 struct cmd_ctrl_node *cmdnode)
1216 {
1217 lbs_deb_enter(LBS_DEB_HOST);
1218
1219 if (!cmdnode)
1220 goto out;
1221
1222 cmdnode->callback = NULL;
1223 cmdnode->callback_arg = 0;
1224
1225 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1226
1227 list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1228 out:
1229 lbs_deb_leave(LBS_DEB_HOST);
1230 }
1231
1232 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1233 struct cmd_ctrl_node *ptempcmd)
1234 {
1235 unsigned long flags;
1236
1237 spin_lock_irqsave(&priv->driver_lock, flags);
1238 __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1239 spin_unlock_irqrestore(&priv->driver_lock, flags);
1240 }
1241
1242 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1243 int result)
1244 {
1245 if (cmd == priv->cur_cmd)
1246 priv->cur_cmd_retcode = result;
1247
1248 cmd->result = result;
1249 cmd->cmdwaitqwoken = 1;
1250 wake_up_interruptible(&cmd->cmdwait_q);
1251
1252 if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1253 __lbs_cleanup_and_insert_cmd(priv, cmd);
1254 priv->cur_cmd = NULL;
1255 }
1256
1257 int lbs_set_radio(struct lbs_private *priv, u8 preamble, u8 radio_on)
1258 {
1259 struct cmd_ds_802_11_radio_control cmd;
1260 int ret = -EINVAL;
1261
1262 lbs_deb_enter(LBS_DEB_CMD);
1263
1264 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1265 cmd.action = cpu_to_le16(CMD_ACT_SET);
1266
1267 /* Only v8 and below support setting the preamble */
1268 if (priv->fwrelease < 0x09000000) {
1269 switch (preamble) {
1270 case RADIO_PREAMBLE_SHORT:
1271 if (!(priv->capability & WLAN_CAPABILITY_SHORT_PREAMBLE))
1272 goto out;
1273 /* Fall through */
1274 case RADIO_PREAMBLE_AUTO:
1275 case RADIO_PREAMBLE_LONG:
1276 cmd.control = cpu_to_le16(preamble);
1277 break;
1278 default:
1279 goto out;
1280 }
1281 }
1282
1283 if (radio_on)
1284 cmd.control |= cpu_to_le16(0x1);
1285 else {
1286 cmd.control &= cpu_to_le16(~0x1);
1287 priv->txpower_cur = 0;
1288 }
1289
1290 lbs_deb_cmd("RADIO_CONTROL: radio %s, preamble %d\n",
1291 radio_on ? "ON" : "OFF", preamble);
1292
1293 priv->radio_on = radio_on;
1294
1295 ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1296
1297 out:
1298 lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1299 return ret;
1300 }
1301
1302 void lbs_set_mac_control(struct lbs_private *priv)
1303 {
1304 struct cmd_ds_mac_control cmd;
1305
1306 lbs_deb_enter(LBS_DEB_CMD);
1307
1308 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1309 cmd.action = cpu_to_le16(priv->mac_control);
1310 cmd.reserved = 0;
1311
1312 lbs_cmd_async(priv, CMD_MAC_CONTROL, &cmd.hdr, sizeof(cmd));
1313
1314 lbs_deb_leave(LBS_DEB_CMD);
1315 }
1316
1317 /**
1318 * @brief This function prepare the command before send to firmware.
1319 *
1320 * @param priv A pointer to struct lbs_private structure
1321 * @param cmd_no command number
1322 * @param cmd_action command action: GET or SET
1323 * @param wait_option wait option: wait response or not
1324 * @param cmd_oid cmd oid: treated as sub command
1325 * @param pdata_buf A pointer to informaion buffer
1326 * @return 0 or -1
1327 */
1328 int lbs_prepare_and_send_command(struct lbs_private *priv,
1329 u16 cmd_no,
1330 u16 cmd_action,
1331 u16 wait_option, u32 cmd_oid, void *pdata_buf)
1332 {
1333 int ret = 0;
1334 struct cmd_ctrl_node *cmdnode;
1335 struct cmd_ds_command *cmdptr;
1336 unsigned long flags;
1337
1338 lbs_deb_enter(LBS_DEB_HOST);
1339
1340 if (!priv) {
1341 lbs_deb_host("PREP_CMD: priv is NULL\n");
1342 ret = -1;
1343 goto done;
1344 }
1345
1346 if (priv->surpriseremoved) {
1347 lbs_deb_host("PREP_CMD: card removed\n");
1348 ret = -1;
1349 goto done;
1350 }
1351
1352 cmdnode = lbs_get_cmd_ctrl_node(priv);
1353
1354 if (cmdnode == NULL) {
1355 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1356
1357 /* Wake up main thread to execute next command */
1358 wake_up_interruptible(&priv->waitq);
1359 ret = -1;
1360 goto done;
1361 }
1362
1363 cmdnode->callback = NULL;
1364 cmdnode->callback_arg = (unsigned long)pdata_buf;
1365
1366 cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1367
1368 lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1369
1370 /* Set sequence number, command and INT option */
1371 priv->seqnum++;
1372 cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1373
1374 cmdptr->command = cpu_to_le16(cmd_no);
1375 cmdptr->result = 0;
1376
1377 switch (cmd_no) {
1378 case CMD_802_11_PS_MODE:
1379 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1380 break;
1381
1382 case CMD_802_11_ASSOCIATE:
1383 case CMD_802_11_REASSOCIATE:
1384 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1385 break;
1386
1387 case CMD_802_11_AUTHENTICATE:
1388 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1389 break;
1390
1391 case CMD_MAC_REG_ACCESS:
1392 case CMD_BBP_REG_ACCESS:
1393 case CMD_RF_REG_ACCESS:
1394 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1395 break;
1396
1397 case CMD_802_11_MONITOR_MODE:
1398 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1399 cmd_action, pdata_buf);
1400 break;
1401
1402 case CMD_802_11_RSSI:
1403 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1404 break;
1405
1406 case CMD_802_11_SET_AFC:
1407 case CMD_802_11_GET_AFC:
1408
1409 cmdptr->command = cpu_to_le16(cmd_no);
1410 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1411 S_DS_GEN);
1412
1413 memmove(&cmdptr->params.afc,
1414 pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1415
1416 ret = 0;
1417 goto done;
1418
1419 case CMD_802_11D_DOMAIN_INFO:
1420 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1421 cmd_no, cmd_action);
1422 break;
1423
1424 case CMD_802_11_TPC_CFG:
1425 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1426 cmdptr->size =
1427 cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1428 S_DS_GEN);
1429
1430 memmove(&cmdptr->params.tpccfg,
1431 pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1432
1433 ret = 0;
1434 break;
1435 case CMD_802_11_LED_GPIO_CTRL:
1436 {
1437 struct mrvlietypes_ledgpio *gpio =
1438 (struct mrvlietypes_ledgpio*)
1439 cmdptr->params.ledgpio.data;
1440
1441 memmove(&cmdptr->params.ledgpio,
1442 pdata_buf,
1443 sizeof(struct cmd_ds_802_11_led_ctrl));
1444
1445 cmdptr->command =
1446 cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1447
1448 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1449 cmdptr->size =
1450 cpu_to_le16(le16_to_cpu(gpio->header.len)
1451 + S_DS_GEN
1452 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1453 gpio->header.len = gpio->header.len;
1454
1455 ret = 0;
1456 break;
1457 }
1458
1459 case CMD_BT_ACCESS:
1460 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1461 break;
1462
1463 case CMD_FWT_ACCESS:
1464 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1465 break;
1466
1467 case CMD_GET_TSF:
1468 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1469 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1470 S_DS_GEN);
1471 ret = 0;
1472 break;
1473 case CMD_802_11_BEACON_CTRL:
1474 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1475 break;
1476 default:
1477 lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1478 ret = -1;
1479 break;
1480 }
1481
1482 /* return error, since the command preparation failed */
1483 if (ret != 0) {
1484 lbs_deb_host("PREP_CMD: command preparation failed\n");
1485 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1486 ret = -1;
1487 goto done;
1488 }
1489
1490 cmdnode->cmdwaitqwoken = 0;
1491
1492 lbs_queue_cmd(priv, cmdnode);
1493 wake_up_interruptible(&priv->waitq);
1494
1495 if (wait_option & CMD_OPTION_WAITFORRSP) {
1496 lbs_deb_host("PREP_CMD: wait for response\n");
1497 might_sleep();
1498 wait_event_interruptible(cmdnode->cmdwait_q,
1499 cmdnode->cmdwaitqwoken);
1500 }
1501
1502 spin_lock_irqsave(&priv->driver_lock, flags);
1503 if (priv->cur_cmd_retcode) {
1504 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1505 priv->cur_cmd_retcode);
1506 priv->cur_cmd_retcode = 0;
1507 ret = -1;
1508 }
1509 spin_unlock_irqrestore(&priv->driver_lock, flags);
1510
1511 done:
1512 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1513 return ret;
1514 }
1515
1516 /**
1517 * @brief This function allocates the command buffer and link
1518 * it to command free queue.
1519 *
1520 * @param priv A pointer to struct lbs_private structure
1521 * @return 0 or -1
1522 */
1523 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1524 {
1525 int ret = 0;
1526 u32 bufsize;
1527 u32 i;
1528 struct cmd_ctrl_node *cmdarray;
1529
1530 lbs_deb_enter(LBS_DEB_HOST);
1531
1532 /* Allocate and initialize the command array */
1533 bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1534 if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1535 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1536 ret = -1;
1537 goto done;
1538 }
1539 priv->cmd_array = cmdarray;
1540
1541 /* Allocate and initialize each command buffer in the command array */
1542 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1543 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1544 if (!cmdarray[i].cmdbuf) {
1545 lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1546 ret = -1;
1547 goto done;
1548 }
1549 }
1550
1551 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1552 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1553 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1554 }
1555 ret = 0;
1556
1557 done:
1558 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1559 return ret;
1560 }
1561
1562 /**
1563 * @brief This function frees the command buffer.
1564 *
1565 * @param priv A pointer to struct lbs_private structure
1566 * @return 0 or -1
1567 */
1568 int lbs_free_cmd_buffer(struct lbs_private *priv)
1569 {
1570 struct cmd_ctrl_node *cmdarray;
1571 unsigned int i;
1572
1573 lbs_deb_enter(LBS_DEB_HOST);
1574
1575 /* need to check if cmd array is allocated or not */
1576 if (priv->cmd_array == NULL) {
1577 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1578 goto done;
1579 }
1580
1581 cmdarray = priv->cmd_array;
1582
1583 /* Release shared memory buffers */
1584 for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1585 if (cmdarray[i].cmdbuf) {
1586 kfree(cmdarray[i].cmdbuf);
1587 cmdarray[i].cmdbuf = NULL;
1588 }
1589 }
1590
1591 /* Release cmd_ctrl_node */
1592 if (priv->cmd_array) {
1593 kfree(priv->cmd_array);
1594 priv->cmd_array = NULL;
1595 }
1596
1597 done:
1598 lbs_deb_leave(LBS_DEB_HOST);
1599 return 0;
1600 }
1601
1602 /**
1603 * @brief This function gets a free command node if available in
1604 * command free queue.
1605 *
1606 * @param priv A pointer to struct lbs_private structure
1607 * @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1608 */
1609 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1610 {
1611 struct cmd_ctrl_node *tempnode;
1612 unsigned long flags;
1613
1614 lbs_deb_enter(LBS_DEB_HOST);
1615
1616 if (!priv)
1617 return NULL;
1618
1619 spin_lock_irqsave(&priv->driver_lock, flags);
1620
1621 if (!list_empty(&priv->cmdfreeq)) {
1622 tempnode = list_first_entry(&priv->cmdfreeq,
1623 struct cmd_ctrl_node, list);
1624 list_del(&tempnode->list);
1625 } else {
1626 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1627 tempnode = NULL;
1628 }
1629
1630 spin_unlock_irqrestore(&priv->driver_lock, flags);
1631
1632 lbs_deb_leave(LBS_DEB_HOST);
1633 return tempnode;
1634 }
1635
1636 /**
1637 * @brief This function executes next command in command
1638 * pending queue. It will put fimware back to PS mode
1639 * if applicable.
1640 *
1641 * @param priv A pointer to struct lbs_private structure
1642 * @return 0 or -1
1643 */
1644 int lbs_execute_next_command(struct lbs_private *priv)
1645 {
1646 struct cmd_ctrl_node *cmdnode = NULL;
1647 struct cmd_header *cmd;
1648 unsigned long flags;
1649 int ret = 0;
1650
1651 /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1652 * only caller to us is lbs_thread() and we get even when a
1653 * data packet is received */
1654 lbs_deb_enter(LBS_DEB_THREAD);
1655
1656 spin_lock_irqsave(&priv->driver_lock, flags);
1657
1658 if (priv->cur_cmd) {
1659 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1660 spin_unlock_irqrestore(&priv->driver_lock, flags);
1661 ret = -1;
1662 goto done;
1663 }
1664
1665 if (!list_empty(&priv->cmdpendingq)) {
1666 cmdnode = list_first_entry(&priv->cmdpendingq,
1667 struct cmd_ctrl_node, list);
1668 }
1669
1670 spin_unlock_irqrestore(&priv->driver_lock, flags);
1671
1672 if (cmdnode) {
1673 cmd = cmdnode->cmdbuf;
1674
1675 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1676 if ((priv->psstate == PS_STATE_SLEEP) ||
1677 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1678 lbs_deb_host(
1679 "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1680 le16_to_cpu(cmd->command),
1681 priv->psstate);
1682 ret = -1;
1683 goto done;
1684 }
1685 lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1686 "0x%04x in psstate %d\n",
1687 le16_to_cpu(cmd->command), priv->psstate);
1688 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1689 /*
1690 * 1. Non-PS command:
1691 * Queue it. set needtowakeup to TRUE if current state
1692 * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1693 * 2. PS command but not Exit_PS:
1694 * Ignore it.
1695 * 3. PS command Exit_PS:
1696 * Set needtowakeup to TRUE if current state is SLEEP,
1697 * otherwise send this command down to firmware
1698 * immediately.
1699 */
1700 if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1701 /* Prepare to send Exit PS,
1702 * this non PS command will be sent later */
1703 if ((priv->psstate == PS_STATE_SLEEP)
1704 || (priv->psstate == PS_STATE_PRE_SLEEP)
1705 ) {
1706 /* w/ new scheme, it will not reach here.
1707 since it is blocked in main_thread. */
1708 priv->needtowakeup = 1;
1709 } else
1710 lbs_ps_wakeup(priv, 0);
1711
1712 ret = 0;
1713 goto done;
1714 } else {
1715 /*
1716 * PS command. Ignore it if it is not Exit_PS.
1717 * otherwise send it down immediately.
1718 */
1719 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1720
1721 lbs_deb_host(
1722 "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1723 psm->action);
1724 if (psm->action !=
1725 cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1726 lbs_deb_host(
1727 "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1728 list_del(&cmdnode->list);
1729 spin_lock_irqsave(&priv->driver_lock, flags);
1730 lbs_complete_command(priv, cmdnode, 0);
1731 spin_unlock_irqrestore(&priv->driver_lock, flags);
1732
1733 ret = 0;
1734 goto done;
1735 }
1736
1737 if ((priv->psstate == PS_STATE_SLEEP) ||
1738 (priv->psstate == PS_STATE_PRE_SLEEP)) {
1739 lbs_deb_host(
1740 "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1741 list_del(&cmdnode->list);
1742 spin_lock_irqsave(&priv->driver_lock, flags);
1743 lbs_complete_command(priv, cmdnode, 0);
1744 spin_unlock_irqrestore(&priv->driver_lock, flags);
1745 priv->needtowakeup = 1;
1746
1747 ret = 0;
1748 goto done;
1749 }
1750
1751 lbs_deb_host(
1752 "EXEC_NEXT_CMD: sending EXIT_PS\n");
1753 }
1754 }
1755 list_del(&cmdnode->list);
1756 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1757 le16_to_cpu(cmd->command));
1758 lbs_submit_command(priv, cmdnode);
1759 } else {
1760 /*
1761 * check if in power save mode, if yes, put the device back
1762 * to PS mode
1763 */
1764 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1765 (priv->psstate == PS_STATE_FULL_POWER) &&
1766 ((priv->connect_status == LBS_CONNECTED) ||
1767 (priv->mesh_connect_status == LBS_CONNECTED))) {
1768 if (priv->secinfo.WPAenabled ||
1769 priv->secinfo.WPA2enabled) {
1770 /* check for valid WPA group keys */
1771 if (priv->wpa_mcast_key.len ||
1772 priv->wpa_unicast_key.len) {
1773 lbs_deb_host(
1774 "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1775 " go back to PS_SLEEP");
1776 lbs_ps_sleep(priv, 0);
1777 }
1778 } else {
1779 lbs_deb_host(
1780 "EXEC_NEXT_CMD: cmdpendingq empty, "
1781 "go back to PS_SLEEP");
1782 lbs_ps_sleep(priv, 0);
1783 }
1784 }
1785 }
1786
1787 ret = 0;
1788 done:
1789 lbs_deb_leave(LBS_DEB_THREAD);
1790 return ret;
1791 }
1792
1793 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1794 {
1795 union iwreq_data iwrq;
1796 u8 buf[50];
1797
1798 lbs_deb_enter(LBS_DEB_WEXT);
1799
1800 memset(&iwrq, 0, sizeof(union iwreq_data));
1801 memset(buf, 0, sizeof(buf));
1802
1803 snprintf(buf, sizeof(buf) - 1, "%s", str);
1804
1805 iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1806
1807 /* Send Event to upper layer */
1808 lbs_deb_wext("event indication string %s\n", (char *)buf);
1809 lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1810 lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1811
1812 wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1813
1814 lbs_deb_leave(LBS_DEB_WEXT);
1815 }
1816
1817 static void lbs_send_confirmsleep(struct lbs_private *priv)
1818 {
1819 unsigned long flags;
1820 int ret;
1821
1822 lbs_deb_enter(LBS_DEB_HOST);
1823 lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1824 sizeof(confirm_sleep));
1825
1826 ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1827 sizeof(confirm_sleep));
1828 if (ret) {
1829 lbs_pr_alert("confirm_sleep failed\n");
1830 goto out;
1831 }
1832
1833 spin_lock_irqsave(&priv->driver_lock, flags);
1834
1835 /* We don't get a response on the sleep-confirmation */
1836 priv->dnld_sent = DNLD_RES_RECEIVED;
1837
1838 /* If nothing to do, go back to sleep (?) */
1839 if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1840 priv->psstate = PS_STATE_SLEEP;
1841
1842 spin_unlock_irqrestore(&priv->driver_lock, flags);
1843
1844 out:
1845 lbs_deb_leave(LBS_DEB_HOST);
1846 }
1847
1848 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1849 {
1850 lbs_deb_enter(LBS_DEB_HOST);
1851
1852 /*
1853 * PS is currently supported only in Infrastructure mode
1854 * Remove this check if it is to be supported in IBSS mode also
1855 */
1856
1857 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1858 CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1859
1860 lbs_deb_leave(LBS_DEB_HOST);
1861 }
1862
1863 /**
1864 * @brief This function sends Exit_PS command to firmware.
1865 *
1866 * @param priv A pointer to struct lbs_private structure
1867 * @param wait_option wait response or not
1868 * @return n/a
1869 */
1870 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1871 {
1872 __le32 Localpsmode;
1873
1874 lbs_deb_enter(LBS_DEB_HOST);
1875
1876 Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1877
1878 lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1879 CMD_SUBCMD_EXIT_PS,
1880 wait_option, 0, &Localpsmode);
1881
1882 lbs_deb_leave(LBS_DEB_HOST);
1883 }
1884
1885 /**
1886 * @brief This function checks condition and prepares to
1887 * send sleep confirm command to firmware if ok.
1888 *
1889 * @param priv A pointer to struct lbs_private structure
1890 * @param psmode Power Saving mode
1891 * @return n/a
1892 */
1893 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1894 {
1895 unsigned long flags =0;
1896 int allowed = 1;
1897
1898 lbs_deb_enter(LBS_DEB_HOST);
1899
1900 spin_lock_irqsave(&priv->driver_lock, flags);
1901 if (priv->dnld_sent) {
1902 allowed = 0;
1903 lbs_deb_host("dnld_sent was set\n");
1904 }
1905
1906 /* In-progress command? */
1907 if (priv->cur_cmd) {
1908 allowed = 0;
1909 lbs_deb_host("cur_cmd was set\n");
1910 }
1911
1912 /* Pending events or command responses? */
1913 if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1914 allowed = 0;
1915 lbs_deb_host("pending events or command responses\n");
1916 }
1917 spin_unlock_irqrestore(&priv->driver_lock, flags);
1918
1919 if (allowed) {
1920 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1921 lbs_send_confirmsleep(priv);
1922 } else {
1923 lbs_deb_host("sleep confirm has been delayed\n");
1924 }
1925
1926 lbs_deb_leave(LBS_DEB_HOST);
1927 }
1928
1929
1930 /**
1931 * @brief Configures the transmission power control functionality.
1932 *
1933 * @param priv A pointer to struct lbs_private structure
1934 * @param enable Transmission power control enable
1935 * @param p0 Power level when link quality is good (dBm).
1936 * @param p1 Power level when link quality is fair (dBm).
1937 * @param p2 Power level when link quality is poor (dBm).
1938 * @param usesnr Use Signal to Noise Ratio in TPC
1939 *
1940 * @return 0 on success
1941 */
1942 int lbs_set_tpc_cfg(struct lbs_private *priv, int enable, int8_t p0, int8_t p1,
1943 int8_t p2, int usesnr)
1944 {
1945 struct cmd_ds_802_11_tpc_cfg cmd;
1946 int ret;
1947
1948 memset(&cmd, 0, sizeof(cmd));
1949 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1950 cmd.action = cpu_to_le16(CMD_ACT_SET);
1951 cmd.enable = !!enable;
1952 cmd.usesnr = !!usesnr;
1953 cmd.P0 = p0;
1954 cmd.P1 = p1;
1955 cmd.P2 = p2;
1956
1957 ret = lbs_cmd_with_response(priv, CMD_802_11_TPC_CFG, &cmd);
1958
1959 return ret;
1960 }
1961
1962 /**
1963 * @brief Configures the power adaptation settings.
1964 *
1965 * @param priv A pointer to struct lbs_private structure
1966 * @param enable Power adaptation enable
1967 * @param p0 Power level for 1, 2, 5.5 and 11 Mbps (dBm).
1968 * @param p1 Power level for 6, 9, 12, 18, 22, 24 and 36 Mbps (dBm).
1969 * @param p2 Power level for 48 and 54 Mbps (dBm).
1970 *
1971 * @return 0 on Success
1972 */
1973
1974 int lbs_set_power_adapt_cfg(struct lbs_private *priv, int enable, int8_t p0,
1975 int8_t p1, int8_t p2)
1976 {
1977 struct cmd_ds_802_11_pa_cfg cmd;
1978 int ret;
1979
1980 memset(&cmd, 0, sizeof(cmd));
1981 cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1982 cmd.action = cpu_to_le16(CMD_ACT_SET);
1983 cmd.enable = !!enable;
1984 cmd.P0 = p0;
1985 cmd.P1 = p1;
1986 cmd.P2 = p2;
1987
1988 ret = lbs_cmd_with_response(priv, CMD_802_11_PA_CFG , &cmd);
1989
1990 return ret;
1991 }
1992
1993
1994 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1995 uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1996 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1997 unsigned long callback_arg)
1998 {
1999 struct cmd_ctrl_node *cmdnode;
2000
2001 lbs_deb_enter(LBS_DEB_HOST);
2002
2003 if (priv->surpriseremoved) {
2004 lbs_deb_host("PREP_CMD: card removed\n");
2005 cmdnode = ERR_PTR(-ENOENT);
2006 goto done;
2007 }
2008
2009 cmdnode = lbs_get_cmd_ctrl_node(priv);
2010 if (cmdnode == NULL) {
2011 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2012
2013 /* Wake up main thread to execute next command */
2014 wake_up_interruptible(&priv->waitq);
2015 cmdnode = ERR_PTR(-ENOBUFS);
2016 goto done;
2017 }
2018
2019 cmdnode->callback = callback;
2020 cmdnode->callback_arg = callback_arg;
2021
2022 /* Copy the incoming command to the buffer */
2023 memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2024
2025 /* Set sequence number, clean result, move to buffer */
2026 priv->seqnum++;
2027 cmdnode->cmdbuf->command = cpu_to_le16(command);
2028 cmdnode->cmdbuf->size = cpu_to_le16(in_cmd_size);
2029 cmdnode->cmdbuf->seqnum = cpu_to_le16(priv->seqnum);
2030 cmdnode->cmdbuf->result = 0;
2031
2032 lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2033
2034 cmdnode->cmdwaitqwoken = 0;
2035 lbs_queue_cmd(priv, cmdnode);
2036 wake_up_interruptible(&priv->waitq);
2037
2038 done:
2039 lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
2040 return cmdnode;
2041 }
2042
2043 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
2044 struct cmd_header *in_cmd, int in_cmd_size)
2045 {
2046 lbs_deb_enter(LBS_DEB_CMD);
2047 __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2048 lbs_cmd_async_callback, 0);
2049 lbs_deb_leave(LBS_DEB_CMD);
2050 }
2051
2052 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2053 struct cmd_header *in_cmd, int in_cmd_size,
2054 int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2055 unsigned long callback_arg)
2056 {
2057 struct cmd_ctrl_node *cmdnode;
2058 unsigned long flags;
2059 int ret = 0;
2060
2061 lbs_deb_enter(LBS_DEB_HOST);
2062
2063 cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2064 callback, callback_arg);
2065 if (IS_ERR(cmdnode)) {
2066 ret = PTR_ERR(cmdnode);
2067 goto done;
2068 }
2069
2070 might_sleep();
2071 wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2072
2073 spin_lock_irqsave(&priv->driver_lock, flags);
2074 ret = cmdnode->result;
2075 if (ret)
2076 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2077 command, ret);
2078
2079 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2080 spin_unlock_irqrestore(&priv->driver_lock, flags);
2081
2082 done:
2083 lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2084 return ret;
2085 }
2086 EXPORT_SYMBOL_GPL(__lbs_cmd);
2087
2088
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