libertas: convert SNMP_MIB to a direct command
[linux-3.10.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 = !!enable;
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