Merge branch 'linus' into x86/nmi
[linux-2.6] / 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 <linux/kfifo.h>
8 #include "host.h"
9 #include "hostcmd.h"
10 #include "decl.h"
11 #include "defs.h"
12 #include "dev.h"
13 #include "assoc.h"
14 #include "wext.h"
15 #include "cmd.h"
16
17 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
18
19
20 /**
21  *  @brief Simple callback that copies response back into command
22  *
23  *  @param priv         A pointer to struct lbs_private structure
24  *  @param extra        A pointer to the original command structure for which
25  *                      'resp' is a response
26  *  @param resp         A pointer to the command response
27  *
28  *  @return             0 on success, error on failure
29  */
30 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
31                      struct cmd_header *resp)
32 {
33         struct cmd_header *buf = (void *)extra;
34         uint16_t copy_len;
35
36         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
37         memcpy(buf, resp, copy_len);
38         return 0;
39 }
40 EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
41
42 /**
43  *  @brief Simple callback that ignores the result. Use this if
44  *  you just want to send a command to the hardware, but don't
45  *  care for the result.
46  *
47  *  @param priv         ignored
48  *  @param extra        ignored
49  *  @param resp         ignored
50  *
51  *  @return             0 for success
52  */
53 static int lbs_cmd_async_callback(struct lbs_private *priv, unsigned long extra,
54                      struct cmd_header *resp)
55 {
56         return 0;
57 }
58
59
60 /**
61  *  @brief Checks whether a command is allowed in Power Save mode
62  *
63  *  @param command the command ID
64  *  @return        1 if allowed, 0 if not allowed
65  */
66 static u8 is_command_allowed_in_ps(u16 cmd)
67 {
68         switch (cmd) {
69         case CMD_802_11_RSSI:
70                 return 1;
71         default:
72                 break;
73         }
74         return 0;
75 }
76
77 /**
78  *  @brief Updates the hardware details like MAC address and regulatory region
79  *
80  *  @param priv         A pointer to struct lbs_private structure
81  *
82  *  @return             0 on success, error on failure
83  */
84 int lbs_update_hw_spec(struct lbs_private *priv)
85 {
86         struct cmd_ds_get_hw_spec cmd;
87         int ret = -1;
88         u32 i;
89         DECLARE_MAC_BUF(mac);
90
91         lbs_deb_enter(LBS_DEB_CMD);
92
93         memset(&cmd, 0, sizeof(cmd));
94         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
95         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
96         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
97         if (ret)
98                 goto out;
99
100         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
101
102         /* The firmware release is in an interesting format: the patch
103          * level is in the most significant nibble ... so fix that: */
104         priv->fwrelease = le32_to_cpu(cmd.fwrelease);
105         priv->fwrelease = (priv->fwrelease << 8) |
106                 (priv->fwrelease >> 24 & 0xff);
107
108         /* Some firmware capabilities:
109          * CF card    firmware 5.0.16p0:   cap 0x00000303
110          * USB dongle firmware 5.110.17p2: cap 0x00000303
111          */
112         printk("libertas: %s, fw %u.%u.%up%u, cap 0x%08x\n",
113                 print_mac(mac, cmd.permanentaddr),
114                 priv->fwrelease >> 24 & 0xff,
115                 priv->fwrelease >> 16 & 0xff,
116                 priv->fwrelease >>  8 & 0xff,
117                 priv->fwrelease       & 0xff,
118                 priv->fwcapinfo);
119         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
120                     cmd.hwifversion, cmd.version);
121
122         /* Clamp region code to 8-bit since FW spec indicates that it should
123          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
124          * returns non-zero high 8 bits here.
125          */
126         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
127
128         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
129                 /* use the region code to search for the index */
130                 if (priv->regioncode == lbs_region_code_to_index[i])
131                         break;
132         }
133
134         /* if it's unidentified region code, use the default (USA) */
135         if (i >= MRVDRV_MAX_REGION_CODE) {
136                 priv->regioncode = 0x10;
137                 lbs_pr_info("unidentified region code; using the default (USA)\n");
138         }
139
140         if (priv->current_addr[0] == 0xff)
141                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
142
143         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
144         if (priv->mesh_dev)
145                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
146
147         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
148                 ret = -1;
149                 goto out;
150         }
151
152         if (lbs_set_universaltable(priv, 0)) {
153                 ret = -1;
154                 goto out;
155         }
156
157 out:
158         lbs_deb_leave(LBS_DEB_CMD);
159         return ret;
160 }
161
162 int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria)
163 {
164         struct cmd_ds_host_sleep cmd_config;
165         int ret;
166
167         cmd_config.hdr.size = cpu_to_le16(sizeof(cmd_config));
168         cmd_config.criteria = cpu_to_le32(criteria);
169         cmd_config.gpio = priv->wol_gpio;
170         cmd_config.gap = priv->wol_gap;
171
172         ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
173         if (!ret) {
174                 lbs_deb_cmd("Set WOL criteria to %x\n", criteria);
175                 priv->wol_criteria = criteria;
176         } else {
177                 lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
178         }
179
180         return ret;
181 }
182 EXPORT_SYMBOL_GPL(lbs_host_sleep_cfg);
183
184 static int lbs_cmd_802_11_ps_mode(struct cmd_ds_command *cmd,
185                                    u16 cmd_action)
186 {
187         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
188
189         lbs_deb_enter(LBS_DEB_CMD);
190
191         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
192         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
193                                 S_DS_GEN);
194         psm->action = cpu_to_le16(cmd_action);
195         psm->multipledtim = 0;
196         switch (cmd_action) {
197         case CMD_SUBCMD_ENTER_PS:
198                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
199
200                 psm->locallisteninterval = 0;
201                 psm->nullpktinterval = 0;
202                 psm->multipledtim =
203                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
204                 break;
205
206         case CMD_SUBCMD_EXIT_PS:
207                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
208                 break;
209
210         case CMD_SUBCMD_SLEEP_CONFIRMED:
211                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
212                 break;
213
214         default:
215                 break;
216         }
217
218         lbs_deb_leave(LBS_DEB_CMD);
219         return 0;
220 }
221
222 int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
223                                       uint16_t cmd_action, uint16_t *timeout)
224 {
225         struct cmd_ds_802_11_inactivity_timeout cmd;
226         int ret;
227
228         lbs_deb_enter(LBS_DEB_CMD);
229
230         cmd.hdr.command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
231         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
232
233         cmd.action = cpu_to_le16(cmd_action);
234
235         if (cmd_action == CMD_ACT_SET)
236                 cmd.timeout = cpu_to_le16(*timeout);
237         else
238                 cmd.timeout = 0;
239
240         ret = lbs_cmd_with_response(priv, CMD_802_11_INACTIVITY_TIMEOUT, &cmd);
241
242         if (!ret)
243                 *timeout = le16_to_cpu(cmd.timeout);
244
245         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
246         return 0;
247 }
248
249 int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
250                                 struct sleep_params *sp)
251 {
252         struct cmd_ds_802_11_sleep_params cmd;
253         int ret;
254
255         lbs_deb_enter(LBS_DEB_CMD);
256
257         if (cmd_action == CMD_ACT_GET) {
258                 memset(&cmd, 0, sizeof(cmd));
259         } else {
260                 cmd.error = cpu_to_le16(sp->sp_error);
261                 cmd.offset = cpu_to_le16(sp->sp_offset);
262                 cmd.stabletime = cpu_to_le16(sp->sp_stabletime);
263                 cmd.calcontrol = sp->sp_calcontrol;
264                 cmd.externalsleepclk = sp->sp_extsleepclk;
265                 cmd.reserved = cpu_to_le16(sp->sp_reserved);
266         }
267         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
268         cmd.action = cpu_to_le16(cmd_action);
269
270         ret = lbs_cmd_with_response(priv, CMD_802_11_SLEEP_PARAMS, &cmd);
271
272         if (!ret) {
273                 lbs_deb_cmd("error 0x%x, offset 0x%x, stabletime 0x%x, "
274                             "calcontrol 0x%x extsleepclk 0x%x\n",
275                             le16_to_cpu(cmd.error), le16_to_cpu(cmd.offset),
276                             le16_to_cpu(cmd.stabletime), cmd.calcontrol,
277                             cmd.externalsleepclk);
278
279                 sp->sp_error = le16_to_cpu(cmd.error);
280                 sp->sp_offset = le16_to_cpu(cmd.offset);
281                 sp->sp_stabletime = le16_to_cpu(cmd.stabletime);
282                 sp->sp_calcontrol = cmd.calcontrol;
283                 sp->sp_extsleepclk = cmd.externalsleepclk;
284                 sp->sp_reserved = le16_to_cpu(cmd.reserved);
285         }
286
287         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
288         return 0;
289 }
290
291 int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
292                            struct assoc_request *assoc)
293 {
294         struct cmd_ds_802_11_set_wep cmd;
295         int ret = 0;
296
297         lbs_deb_enter(LBS_DEB_CMD);
298
299         memset(&cmd, 0, sizeof(cmd));
300         cmd.hdr.command = cpu_to_le16(CMD_802_11_SET_WEP);
301         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
302
303         cmd.action = cpu_to_le16(cmd_action);
304
305         if (cmd_action == CMD_ACT_ADD) {
306                 int i;
307
308                 /* default tx key index */
309                 cmd.keyindex = cpu_to_le16(assoc->wep_tx_keyidx &
310                                            CMD_WEP_KEY_INDEX_MASK);
311
312                 /* Copy key types and material to host command structure */
313                 for (i = 0; i < 4; i++) {
314                         struct enc_key *pkey = &assoc->wep_keys[i];
315
316                         switch (pkey->len) {
317                         case KEY_LEN_WEP_40:
318                                 cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
319                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
320                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
321                                 break;
322                         case KEY_LEN_WEP_104:
323                                 cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
324                                 memmove(cmd.keymaterial[i], pkey->key, pkey->len);
325                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
326                                 break;
327                         case 0:
328                                 break;
329                         default:
330                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
331                                             i, pkey->len);
332                                 ret = -1;
333                                 goto done;
334                                 break;
335                         }
336                 }
337         } else if (cmd_action == CMD_ACT_REMOVE) {
338                 /* ACT_REMOVE clears _all_ WEP keys */
339
340                 /* default tx key index */
341                 cmd.keyindex = cpu_to_le16(priv->wep_tx_keyidx &
342                                            CMD_WEP_KEY_INDEX_MASK);
343                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
344         }
345
346         ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
347 done:
348         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
349         return ret;
350 }
351
352 int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
353                               uint16_t *enable)
354 {
355         struct cmd_ds_802_11_enable_rsn cmd;
356         int ret;
357
358         lbs_deb_enter(LBS_DEB_CMD);
359
360         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
361         cmd.action = cpu_to_le16(cmd_action);
362
363         if (cmd_action == CMD_ACT_GET)
364                 cmd.enable = 0;
365         else {
366                 if (*enable)
367                         cmd.enable = cpu_to_le16(CMD_ENABLE_RSN);
368                 else
369                         cmd.enable = cpu_to_le16(CMD_DISABLE_RSN);
370                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
371         }
372
373         ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
374         if (!ret && cmd_action == CMD_ACT_GET)
375                 *enable = le16_to_cpu(cmd.enable);
376
377         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
378         return ret;
379 }
380
381 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet *keyparam,
382                             struct enc_key *key)
383 {
384         lbs_deb_enter(LBS_DEB_CMD);
385
386         if (key->flags & KEY_INFO_WPA_ENABLED)
387                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
388         if (key->flags & KEY_INFO_WPA_UNICAST)
389                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
390         if (key->flags & KEY_INFO_WPA_MCAST)
391                 keyparam->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
392
393         keyparam->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
394         keyparam->keytypeid = cpu_to_le16(key->type);
395         keyparam->keylen = cpu_to_le16(key->len);
396         memcpy(keyparam->key, key->key, key->len);
397
398         /* Length field doesn't include the {type,length} header */
399         keyparam->length = cpu_to_le16(sizeof(*keyparam) - 4);
400         lbs_deb_leave(LBS_DEB_CMD);
401 }
402
403 int lbs_cmd_802_11_key_material(struct lbs_private *priv, uint16_t cmd_action,
404                                 struct assoc_request *assoc)
405 {
406         struct cmd_ds_802_11_key_material cmd;
407         int ret = 0;
408         int index = 0;
409
410         lbs_deb_enter(LBS_DEB_CMD);
411
412         cmd.action = cpu_to_le16(cmd_action);
413         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
414
415         if (cmd_action == CMD_ACT_GET) {
416                 cmd.hdr.size = cpu_to_le16(S_DS_GEN + 2);
417         } else {
418                 memset(cmd.keyParamSet, 0, sizeof(cmd.keyParamSet));
419
420                 if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc->flags)) {
421                         set_one_wpa_key(&cmd.keyParamSet[index],
422                                         &assoc->wpa_unicast_key);
423                         index++;
424                 }
425
426                 if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc->flags)) {
427                         set_one_wpa_key(&cmd.keyParamSet[index],
428                                         &assoc->wpa_mcast_key);
429                         index++;
430                 }
431
432                 /* The common header and as many keys as we included */
433                 cmd.hdr.size = cpu_to_le16(offsetof(typeof(cmd),
434                                                     keyParamSet[index]));
435         }
436         ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
437         /* Copy the returned key to driver private data */
438         if (!ret && cmd_action == CMD_ACT_GET) {
439                 void *buf_ptr = cmd.keyParamSet;
440                 void *resp_end = &(&cmd)[1];
441
442                 while (buf_ptr < resp_end) {
443                         struct MrvlIEtype_keyParamSet *keyparam = buf_ptr;
444                         struct enc_key *key;
445                         uint16_t param_set_len = le16_to_cpu(keyparam->length);
446                         uint16_t key_len = le16_to_cpu(keyparam->keylen);
447                         uint16_t key_flags = le16_to_cpu(keyparam->keyinfo);
448                         uint16_t key_type = le16_to_cpu(keyparam->keytypeid);
449                         void *end;
450
451                         end = (void *)keyparam + sizeof(keyparam->type)
452                                 + sizeof(keyparam->length) + param_set_len;
453
454                         /* Make sure we don't access past the end of the IEs */
455                         if (end > resp_end)
456                                 break;
457
458                         if (key_flags & KEY_INFO_WPA_UNICAST)
459                                 key = &priv->wpa_unicast_key;
460                         else if (key_flags & KEY_INFO_WPA_MCAST)
461                                 key = &priv->wpa_mcast_key;
462                         else
463                                 break;
464
465                         /* Copy returned key into driver */
466                         memset(key, 0, sizeof(struct enc_key));
467                         if (key_len > sizeof(key->key))
468                                 break;
469                         key->type = key_type;
470                         key->flags = key_flags;
471                         key->len = key_len;
472                         memcpy(key->key, keyparam->key, key->len);
473
474                         buf_ptr = end + 1;
475                 }
476         }
477
478         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
479         return ret;
480 }
481
482 static int lbs_cmd_802_11_reset(struct cmd_ds_command *cmd, int cmd_action)
483 {
484         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
485
486         lbs_deb_enter(LBS_DEB_CMD);
487
488         cmd->command = cpu_to_le16(CMD_802_11_RESET);
489         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
490         reset->action = cpu_to_le16(cmd_action);
491
492         lbs_deb_leave(LBS_DEB_CMD);
493         return 0;
494 }
495
496 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
497                                     struct cmd_ds_command *cmd,
498                                     int cmd_action,
499                                     int cmd_oid, void *pdata_buf)
500 {
501         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
502         u8 ucTemp;
503
504         lbs_deb_enter(LBS_DEB_CMD);
505
506         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
507
508         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
509         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
510
511         switch (cmd_oid) {
512         case OID_802_11_INFRASTRUCTURE_MODE:
513         {
514                 u8 mode = (u8) (size_t) pdata_buf;
515                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
516                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
517                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
518                 if (mode == IW_MODE_ADHOC) {
519                         ucTemp = SNMP_MIB_VALUE_ADHOC;
520                 } else {
521                         /* Infra and Auto modes */
522                         ucTemp = SNMP_MIB_VALUE_INFRA;
523                 }
524
525                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
526
527                 break;
528         }
529
530         case OID_802_11D_ENABLE:
531                 {
532                         u32 ulTemp;
533
534                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
535
536                         if (cmd_action == CMD_ACT_SET) {
537                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
538                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
539                                 ulTemp = *(u32 *)pdata_buf;
540                                 *((__le16 *)(pSNMPMIB->value)) =
541                                     cpu_to_le16((u16) ulTemp);
542                         }
543                         break;
544                 }
545
546         case OID_802_11_FRAGMENTATION_THRESHOLD:
547                 {
548                         u32 ulTemp;
549
550                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
551
552                         if (cmd_action == CMD_ACT_GET) {
553                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
554                         } else if (cmd_action == CMD_ACT_SET) {
555                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
556                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
557                                 ulTemp = *((u32 *) pdata_buf);
558                                 *((__le16 *)(pSNMPMIB->value)) =
559                                     cpu_to_le16((u16) ulTemp);
560
561                         }
562
563                         break;
564                 }
565
566         case OID_802_11_RTS_THRESHOLD:
567                 {
568
569                         u32 ulTemp;
570                         pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
571
572                         if (cmd_action == CMD_ACT_GET) {
573                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
574                         } else if (cmd_action == CMD_ACT_SET) {
575                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
576                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
577                                 ulTemp = *((u32 *)pdata_buf);
578                                 *(__le16 *)(pSNMPMIB->value) =
579                                     cpu_to_le16((u16) ulTemp);
580
581                         }
582                         break;
583                 }
584         case OID_802_11_TX_RETRYCOUNT:
585                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
586
587                 if (cmd_action == CMD_ACT_GET) {
588                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
589                 } else if (cmd_action == CMD_ACT_SET) {
590                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
591                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
592                         *((__le16 *)(pSNMPMIB->value)) =
593                             cpu_to_le16((u16) priv->txretrycount);
594                 }
595
596                 break;
597         default:
598                 break;
599         }
600
601         lbs_deb_cmd(
602                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
603                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
604                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
605
606         lbs_deb_cmd(
607                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
608                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
609                le16_to_cpu(pSNMPMIB->bufsize),
610                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
611
612         lbs_deb_leave(LBS_DEB_CMD);
613         return 0;
614 }
615
616 static int lbs_cmd_802_11_rf_tx_power(struct cmd_ds_command *cmd,
617                                        u16 cmd_action, void *pdata_buf)
618 {
619
620         struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
621
622         lbs_deb_enter(LBS_DEB_CMD);
623
624         cmd->size =
625             cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
626         cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
627         prtp->action = cpu_to_le16(cmd_action);
628
629         lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
630                     le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
631                     le16_to_cpu(prtp->action));
632
633         switch (cmd_action) {
634         case CMD_ACT_TX_POWER_OPT_GET:
635                 prtp->action = cpu_to_le16(CMD_ACT_GET);
636                 prtp->currentlevel = 0;
637                 break;
638
639         case CMD_ACT_TX_POWER_OPT_SET_HIGH:
640                 prtp->action = cpu_to_le16(CMD_ACT_SET);
641                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
642                 break;
643
644         case CMD_ACT_TX_POWER_OPT_SET_MID:
645                 prtp->action = cpu_to_le16(CMD_ACT_SET);
646                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
647                 break;
648
649         case CMD_ACT_TX_POWER_OPT_SET_LOW:
650                 prtp->action = cpu_to_le16(CMD_ACT_SET);
651                 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
652                 break;
653         }
654
655         lbs_deb_leave(LBS_DEB_CMD);
656         return 0;
657 }
658
659 static int lbs_cmd_802_11_monitor_mode(struct cmd_ds_command *cmd,
660                                       u16 cmd_action, void *pdata_buf)
661 {
662         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
663
664         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
665         cmd->size =
666             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
667                              S_DS_GEN);
668
669         monitor->action = cpu_to_le16(cmd_action);
670         if (cmd_action == CMD_ACT_SET) {
671                 monitor->mode =
672                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
673         }
674
675         return 0;
676 }
677
678 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
679                                               struct cmd_ds_command *cmd,
680                                               u16 cmd_action)
681 {
682         struct cmd_ds_802_11_rate_adapt_rateset
683         *rateadapt = &cmd->params.rateset;
684
685         lbs_deb_enter(LBS_DEB_CMD);
686         cmd->size =
687             cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
688                              + S_DS_GEN);
689         cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
690
691         rateadapt->action = cpu_to_le16(cmd_action);
692         rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
693         rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
694
695         lbs_deb_leave(LBS_DEB_CMD);
696         return 0;
697 }
698
699 /**
700  *  @brief Get the current data rate
701  *
702  *  @param priv         A pointer to struct lbs_private structure
703  *
704  *  @return             The data rate on success, error on failure
705  */
706 int lbs_get_data_rate(struct lbs_private *priv)
707 {
708         struct cmd_ds_802_11_data_rate cmd;
709         int ret = -1;
710
711         lbs_deb_enter(LBS_DEB_CMD);
712
713         memset(&cmd, 0, sizeof(cmd));
714         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
715         cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
716
717         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
718         if (ret)
719                 goto out;
720
721         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
722
723         ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
724         lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
725
726 out:
727         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
728         return ret;
729 }
730
731 /**
732  *  @brief Set the data rate
733  *
734  *  @param priv         A pointer to struct lbs_private structure
735  *  @param rate         The desired data rate, or 0 to clear a locked rate
736  *
737  *  @return             0 on success, error on failure
738  */
739 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
740 {
741         struct cmd_ds_802_11_data_rate cmd;
742         int ret = 0;
743
744         lbs_deb_enter(LBS_DEB_CMD);
745
746         memset(&cmd, 0, sizeof(cmd));
747         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
748
749         if (rate > 0) {
750                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
751                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
752                 if (cmd.rates[0] == 0) {
753                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
754                                     " 0x%02X\n", rate);
755                         ret = 0;
756                         goto out;
757                 }
758                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
759         } else {
760                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
761                 lbs_deb_cmd("DATA_RATE: setting auto\n");
762         }
763
764         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
765         if (ret)
766                 goto out;
767
768         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
769
770         /* FIXME: get actual rates FW can do if this command actually returns
771          * all data rates supported.
772          */
773         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
774         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
775
776 out:
777         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
778         return ret;
779 }
780
781 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
782                                       struct cmd_ds_command *cmd,
783                                       u16 cmd_action)
784 {
785         struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
786
787         lbs_deb_enter(LBS_DEB_CMD);
788         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
789                              S_DS_GEN);
790         cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
791
792         lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
793         pMCastAdr->action = cpu_to_le16(cmd_action);
794         pMCastAdr->nr_of_adrs =
795             cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
796         memcpy(pMCastAdr->maclist, priv->multicastlist,
797                priv->nr_of_multicastmacaddr * ETH_ALEN);
798
799         lbs_deb_leave(LBS_DEB_CMD);
800         return 0;
801 }
802
803 /**
804  *  @brief Get the radio channel
805  *
806  *  @param priv         A pointer to struct lbs_private structure
807  *
808  *  @return             The channel on success, error on failure
809  */
810 int lbs_get_channel(struct lbs_private *priv)
811 {
812         struct cmd_ds_802_11_rf_channel cmd;
813         int ret = 0;
814
815         lbs_deb_enter(LBS_DEB_CMD);
816
817         memset(&cmd, 0, sizeof(cmd));
818         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
819         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
820
821         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
822         if (ret)
823                 goto out;
824
825         ret = le16_to_cpu(cmd.channel);
826         lbs_deb_cmd("current radio channel is %d\n", ret);
827
828 out:
829         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
830         return ret;
831 }
832
833 int lbs_update_channel(struct lbs_private *priv)
834 {
835         int ret;
836
837         /* the channel in f/w could be out of sync; get the current channel */
838         lbs_deb_enter(LBS_DEB_ASSOC);
839
840         ret = lbs_get_channel(priv);
841         if (ret > 0) {
842                 priv->curbssparams.channel = ret;
843                 ret = 0;
844         }
845         lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
846         return ret;
847 }
848
849 /**
850  *  @brief Set the radio channel
851  *
852  *  @param priv         A pointer to struct lbs_private structure
853  *  @param channel      The desired channel, or 0 to clear a locked channel
854  *
855  *  @return             0 on success, error on failure
856  */
857 int lbs_set_channel(struct lbs_private *priv, u8 channel)
858 {
859         struct cmd_ds_802_11_rf_channel cmd;
860         u8 old_channel = priv->curbssparams.channel;
861         int ret = 0;
862
863         lbs_deb_enter(LBS_DEB_CMD);
864
865         memset(&cmd, 0, sizeof(cmd));
866         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
867         cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
868         cmd.channel = cpu_to_le16(channel);
869
870         ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
871         if (ret)
872                 goto out;
873
874         priv->curbssparams.channel = (uint8_t) le16_to_cpu(cmd.channel);
875         lbs_deb_cmd("channel switch from %d to %d\n", old_channel,
876                 priv->curbssparams.channel);
877
878 out:
879         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
880         return ret;
881 }
882
883 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
884                                 struct cmd_ds_command *cmd)
885 {
886
887         lbs_deb_enter(LBS_DEB_CMD);
888         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
889         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
890         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
891
892         /* reset Beacon SNR/NF/RSSI values */
893         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
894         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
895         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
896         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
897         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
898         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
899
900         lbs_deb_leave(LBS_DEB_CMD);
901         return 0;
902 }
903
904 static int lbs_cmd_reg_access(struct cmd_ds_command *cmdptr,
905                                u8 cmd_action, void *pdata_buf)
906 {
907         struct lbs_offset_value *offval;
908
909         lbs_deb_enter(LBS_DEB_CMD);
910
911         offval = (struct lbs_offset_value *)pdata_buf;
912
913         switch (le16_to_cpu(cmdptr->command)) {
914         case CMD_MAC_REG_ACCESS:
915                 {
916                         struct cmd_ds_mac_reg_access *macreg;
917
918                         cmdptr->size =
919                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
920                                         + S_DS_GEN);
921                         macreg =
922                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
923                             macreg;
924
925                         macreg->action = cpu_to_le16(cmd_action);
926                         macreg->offset = cpu_to_le16((u16) offval->offset);
927                         macreg->value = cpu_to_le32(offval->value);
928
929                         break;
930                 }
931
932         case CMD_BBP_REG_ACCESS:
933                 {
934                         struct cmd_ds_bbp_reg_access *bbpreg;
935
936                         cmdptr->size =
937                             cpu_to_le16(sizeof
938                                              (struct cmd_ds_bbp_reg_access)
939                                              + S_DS_GEN);
940                         bbpreg =
941                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
942                             bbpreg;
943
944                         bbpreg->action = cpu_to_le16(cmd_action);
945                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
946                         bbpreg->value = (u8) offval->value;
947
948                         break;
949                 }
950
951         case CMD_RF_REG_ACCESS:
952                 {
953                         struct cmd_ds_rf_reg_access *rfreg;
954
955                         cmdptr->size =
956                             cpu_to_le16(sizeof
957                                              (struct cmd_ds_rf_reg_access) +
958                                              S_DS_GEN);
959                         rfreg =
960                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
961                             rfreg;
962
963                         rfreg->action = cpu_to_le16(cmd_action);
964                         rfreg->offset = cpu_to_le16((u16) offval->offset);
965                         rfreg->value = (u8) offval->value;
966
967                         break;
968                 }
969
970         default:
971                 break;
972         }
973
974         lbs_deb_leave(LBS_DEB_CMD);
975         return 0;
976 }
977
978 static int lbs_cmd_bt_access(struct cmd_ds_command *cmd,
979                                u16 cmd_action, void *pdata_buf)
980 {
981         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
982         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
983
984         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
985         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
986         cmd->result = 0;
987         bt_access->action = cpu_to_le16(cmd_action);
988
989         switch (cmd_action) {
990         case CMD_ACT_BT_ACCESS_ADD:
991                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
992                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
993                 break;
994         case CMD_ACT_BT_ACCESS_DEL:
995                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
996                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
997                 break;
998         case CMD_ACT_BT_ACCESS_LIST:
999                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1000                 break;
1001         case CMD_ACT_BT_ACCESS_RESET:
1002                 break;
1003         case CMD_ACT_BT_ACCESS_SET_INVERT:
1004                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1005                 break;
1006         case CMD_ACT_BT_ACCESS_GET_INVERT:
1007                 break;
1008         default:
1009                 break;
1010         }
1011         lbs_deb_leave(LBS_DEB_CMD);
1012         return 0;
1013 }
1014
1015 static int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
1016                                u16 cmd_action, void *pdata_buf)
1017 {
1018         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1019         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1020
1021         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1022         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1023         cmd->result = 0;
1024
1025         if (pdata_buf)
1026                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1027         else
1028                 memset(fwt_access, 0, sizeof(*fwt_access));
1029
1030         fwt_access->action = cpu_to_le16(cmd_action);
1031
1032         lbs_deb_leave(LBS_DEB_CMD);
1033         return 0;
1034 }
1035
1036 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1037                     struct cmd_ds_mesh_access *cmd)
1038 {
1039         int ret;
1040
1041         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1042
1043         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1044         cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
1045         cmd->hdr.result = 0;
1046
1047         cmd->action = cpu_to_le16(cmd_action);
1048
1049         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
1050
1051         lbs_deb_leave(LBS_DEB_CMD);
1052         return ret;
1053 }
1054
1055 int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan)
1056 {
1057         struct cmd_ds_mesh_config cmd;
1058
1059         memset(&cmd, 0, sizeof(cmd));
1060         cmd.action = cpu_to_le16(enable);
1061         cmd.channel = cpu_to_le16(chan);
1062         cmd.type = cpu_to_le16(priv->mesh_tlv);
1063         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1064
1065         if (enable) {
1066                 cmd.length = cpu_to_le16(priv->mesh_ssid_len);
1067                 memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
1068         }
1069         lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
1070                     enable, priv->mesh_tlv, chan,
1071                     escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
1072         return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
1073 }
1074
1075 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1076                                 struct cmd_ds_command *cmd,
1077                                 u16 cmd_action)
1078 {
1079         struct cmd_ds_802_11_beacon_control
1080                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1081
1082         lbs_deb_enter(LBS_DEB_CMD);
1083         cmd->size =
1084             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1085                              + S_DS_GEN);
1086         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1087
1088         bcn_ctrl->action = cpu_to_le16(cmd_action);
1089         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1090         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1091
1092         lbs_deb_leave(LBS_DEB_CMD);
1093         return 0;
1094 }
1095
1096 static void lbs_queue_cmd(struct lbs_private *priv,
1097                           struct cmd_ctrl_node *cmdnode)
1098 {
1099         unsigned long flags;
1100         int addtail = 1;
1101
1102         lbs_deb_enter(LBS_DEB_HOST);
1103
1104         if (!cmdnode) {
1105                 lbs_deb_host("QUEUE_CMD: cmdnode is NULL\n");
1106                 goto done;
1107         }
1108         if (!cmdnode->cmdbuf->size) {
1109                 lbs_deb_host("DNLD_CMD: cmd size is zero\n");
1110                 goto done;
1111         }
1112         cmdnode->result = 0;
1113
1114         /* Exit_PS command needs to be queued in the header always. */
1115         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1116                 struct cmd_ds_802_11_ps_mode *psm = (void *) &cmdnode->cmdbuf[1];
1117
1118                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1119                         if (priv->psstate != PS_STATE_FULL_POWER)
1120                                 addtail = 0;
1121                 }
1122         }
1123
1124         spin_lock_irqsave(&priv->driver_lock, flags);
1125
1126         if (addtail)
1127                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1128         else
1129                 list_add(&cmdnode->list, &priv->cmdpendingq);
1130
1131         spin_unlock_irqrestore(&priv->driver_lock, flags);
1132
1133         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1134                      le16_to_cpu(cmdnode->cmdbuf->command));
1135
1136 done:
1137         lbs_deb_leave(LBS_DEB_HOST);
1138 }
1139
1140 static void lbs_submit_command(struct lbs_private *priv,
1141                                struct cmd_ctrl_node *cmdnode)
1142 {
1143         unsigned long flags;
1144         struct cmd_header *cmd;
1145         uint16_t cmdsize;
1146         uint16_t command;
1147         int timeo = 5 * HZ;
1148         int ret;
1149
1150         lbs_deb_enter(LBS_DEB_HOST);
1151
1152         cmd = cmdnode->cmdbuf;
1153
1154         spin_lock_irqsave(&priv->driver_lock, flags);
1155         priv->cur_cmd = cmdnode;
1156         priv->cur_cmd_retcode = 0;
1157         spin_unlock_irqrestore(&priv->driver_lock, flags);
1158
1159         cmdsize = le16_to_cpu(cmd->size);
1160         command = le16_to_cpu(cmd->command);
1161
1162         /* These commands take longer */
1163         if (command == CMD_802_11_SCAN || command == CMD_802_11_ASSOCIATE ||
1164             command == CMD_802_11_AUTHENTICATE)
1165                 timeo = 10 * HZ;
1166
1167         lbs_deb_cmd("DNLD_CMD: command 0x%04x, seq %d, size %d\n",
1168                      command, le16_to_cpu(cmd->seqnum), cmdsize);
1169         lbs_deb_hex(LBS_DEB_CMD, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1170
1171         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1172
1173         if (ret) {
1174                 lbs_pr_info("DNLD_CMD: hw_host_to_card failed: %d\n", ret);
1175                 /* Let the timer kick in and retry, and potentially reset
1176                    the whole thing if the condition persists */
1177                 timeo = HZ;
1178         }
1179
1180         /* Setup the timer after transmit command */
1181         mod_timer(&priv->command_timer, jiffies + timeo);
1182
1183         lbs_deb_leave(LBS_DEB_HOST);
1184 }
1185
1186 /**
1187  *  This function inserts command node to cmdfreeq
1188  *  after cleans it. Requires priv->driver_lock held.
1189  */
1190 static void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1191                                          struct cmd_ctrl_node *cmdnode)
1192 {
1193         lbs_deb_enter(LBS_DEB_HOST);
1194
1195         if (!cmdnode)
1196                 goto out;
1197
1198         cmdnode->callback = NULL;
1199         cmdnode->callback_arg = 0;
1200
1201         memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1202
1203         list_add_tail(&cmdnode->list, &priv->cmdfreeq);
1204  out:
1205         lbs_deb_leave(LBS_DEB_HOST);
1206 }
1207
1208 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1209         struct cmd_ctrl_node *ptempcmd)
1210 {
1211         unsigned long flags;
1212
1213         spin_lock_irqsave(&priv->driver_lock, flags);
1214         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1215         spin_unlock_irqrestore(&priv->driver_lock, flags);
1216 }
1217
1218 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
1219                           int result)
1220 {
1221         if (cmd == priv->cur_cmd)
1222                 priv->cur_cmd_retcode = result;
1223
1224         cmd->result = result;
1225         cmd->cmdwaitqwoken = 1;
1226         wake_up_interruptible(&cmd->cmdwait_q);
1227
1228         if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
1229                 __lbs_cleanup_and_insert_cmd(priv, cmd);
1230         priv->cur_cmd = NULL;
1231 }
1232
1233 int lbs_set_radio_control(struct lbs_private *priv)
1234 {
1235         int ret = 0;
1236         struct cmd_ds_802_11_radio_control cmd;
1237
1238         lbs_deb_enter(LBS_DEB_CMD);
1239
1240         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1241         cmd.action = cpu_to_le16(CMD_ACT_SET);
1242
1243         switch (priv->preamble) {
1244         case CMD_TYPE_SHORT_PREAMBLE:
1245                 cmd.control = cpu_to_le16(SET_SHORT_PREAMBLE);
1246                 break;
1247
1248         case CMD_TYPE_LONG_PREAMBLE:
1249                 cmd.control = cpu_to_le16(SET_LONG_PREAMBLE);
1250                 break;
1251
1252         case CMD_TYPE_AUTO_PREAMBLE:
1253         default:
1254                 cmd.control = cpu_to_le16(SET_AUTO_PREAMBLE);
1255                 break;
1256         }
1257
1258         if (priv->radioon)
1259                 cmd.control |= cpu_to_le16(TURN_ON_RF);
1260         else
1261                 cmd.control &= cpu_to_le16(~TURN_ON_RF);
1262
1263         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n", priv->radioon,
1264                     priv->preamble);
1265
1266         ret = lbs_cmd_with_response(priv, CMD_802_11_RADIO_CONTROL, &cmd);
1267
1268         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1269         return ret;
1270 }
1271
1272 void lbs_set_mac_control(struct lbs_private *priv)
1273 {
1274         struct cmd_ds_mac_control cmd;
1275
1276         lbs_deb_enter(LBS_DEB_CMD);
1277
1278         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
1279         cmd.action = cpu_to_le16(priv->mac_control);
1280         cmd.reserved = 0;
1281
1282         lbs_cmd_async(priv, CMD_MAC_CONTROL,
1283                 &cmd.hdr, sizeof(cmd));
1284
1285         lbs_deb_leave(LBS_DEB_CMD);
1286 }
1287
1288 /**
1289  *  @brief This function prepare the command before send to firmware.
1290  *
1291  *  @param priv         A pointer to struct lbs_private structure
1292  *  @param cmd_no       command number
1293  *  @param cmd_action   command action: GET or SET
1294  *  @param wait_option  wait option: wait response or not
1295  *  @param cmd_oid      cmd oid: treated as sub command
1296  *  @param pdata_buf    A pointer to informaion buffer
1297  *  @return             0 or -1
1298  */
1299 int lbs_prepare_and_send_command(struct lbs_private *priv,
1300                           u16 cmd_no,
1301                           u16 cmd_action,
1302                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1303 {
1304         int ret = 0;
1305         struct cmd_ctrl_node *cmdnode;
1306         struct cmd_ds_command *cmdptr;
1307         unsigned long flags;
1308
1309         lbs_deb_enter(LBS_DEB_HOST);
1310
1311         if (!priv) {
1312                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1313                 ret = -1;
1314                 goto done;
1315         }
1316
1317         if (priv->surpriseremoved) {
1318                 lbs_deb_host("PREP_CMD: card removed\n");
1319                 ret = -1;
1320                 goto done;
1321         }
1322
1323         cmdnode = lbs_get_cmd_ctrl_node(priv);
1324
1325         if (cmdnode == NULL) {
1326                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1327
1328                 /* Wake up main thread to execute next command */
1329                 wake_up_interruptible(&priv->waitq);
1330                 ret = -1;
1331                 goto done;
1332         }
1333
1334         cmdnode->callback = NULL;
1335         cmdnode->callback_arg = (unsigned long)pdata_buf;
1336
1337         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1338
1339         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1340
1341         /* Set sequence number, command and INT option */
1342         priv->seqnum++;
1343         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1344
1345         cmdptr->command = cpu_to_le16(cmd_no);
1346         cmdptr->result = 0;
1347
1348         switch (cmd_no) {
1349         case CMD_802_11_PS_MODE:
1350                 ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
1351                 break;
1352
1353         case CMD_802_11_ASSOCIATE:
1354         case CMD_802_11_REASSOCIATE:
1355                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1356                 break;
1357
1358         case CMD_802_11_DEAUTHENTICATE:
1359                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1360                 break;
1361
1362         case CMD_802_11_AD_HOC_START:
1363                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1364                 break;
1365
1366         case CMD_802_11_RESET:
1367                 ret = lbs_cmd_802_11_reset(cmdptr, cmd_action);
1368                 break;
1369
1370         case CMD_802_11_AUTHENTICATE:
1371                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1372                 break;
1373
1374         case CMD_802_11_SNMP_MIB:
1375                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1376                                                cmd_action, cmd_oid, pdata_buf);
1377                 break;
1378
1379         case CMD_MAC_REG_ACCESS:
1380         case CMD_BBP_REG_ACCESS:
1381         case CMD_RF_REG_ACCESS:
1382                 ret = lbs_cmd_reg_access(cmdptr, cmd_action, pdata_buf);
1383                 break;
1384
1385         case CMD_802_11_RF_TX_POWER:
1386                 ret = lbs_cmd_802_11_rf_tx_power(cmdptr,
1387                                                  cmd_action, pdata_buf);
1388                 break;
1389
1390         case CMD_802_11_RATE_ADAPT_RATESET:
1391                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1392                                                          cmdptr, cmd_action);
1393                 break;
1394
1395         case CMD_MAC_MULTICAST_ADR:
1396                 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1397                 break;
1398
1399         case CMD_802_11_MONITOR_MODE:
1400                 ret = lbs_cmd_802_11_monitor_mode(cmdptr,
1401                                           cmd_action, pdata_buf);
1402                 break;
1403
1404         case CMD_802_11_AD_HOC_JOIN:
1405                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1406                 break;
1407
1408         case CMD_802_11_RSSI:
1409                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1410                 break;
1411
1412         case CMD_802_11_AD_HOC_STOP:
1413                 ret = lbs_cmd_80211_ad_hoc_stop(cmdptr);
1414                 break;
1415
1416         case CMD_802_11_SET_AFC:
1417         case CMD_802_11_GET_AFC:
1418
1419                 cmdptr->command = cpu_to_le16(cmd_no);
1420                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1421                                            S_DS_GEN);
1422
1423                 memmove(&cmdptr->params.afc,
1424                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1425
1426                 ret = 0;
1427                 goto done;
1428
1429         case CMD_802_11D_DOMAIN_INFO:
1430                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1431                                                    cmd_no, cmd_action);
1432                 break;
1433
1434         case CMD_802_11_TPC_CFG:
1435                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1436                 cmdptr->size =
1437                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1438                                      S_DS_GEN);
1439
1440                 memmove(&cmdptr->params.tpccfg,
1441                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1442
1443                 ret = 0;
1444                 break;
1445         case CMD_802_11_LED_GPIO_CTRL:
1446                 {
1447                         struct mrvlietypes_ledgpio *gpio =
1448                             (struct mrvlietypes_ledgpio*)
1449                             cmdptr->params.ledgpio.data;
1450
1451                         memmove(&cmdptr->params.ledgpio,
1452                                 pdata_buf,
1453                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1454
1455                         cmdptr->command =
1456                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1457
1458 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1459                         cmdptr->size =
1460                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1461                                 + S_DS_GEN
1462                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1463                         gpio->header.len = gpio->header.len;
1464
1465                         ret = 0;
1466                         break;
1467                 }
1468
1469         case CMD_BT_ACCESS:
1470                 ret = lbs_cmd_bt_access(cmdptr, cmd_action, pdata_buf);
1471                 break;
1472
1473         case CMD_FWT_ACCESS:
1474                 ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
1475                 break;
1476
1477         case CMD_GET_TSF:
1478                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1479                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1480                                            S_DS_GEN);
1481                 ret = 0;
1482                 break;
1483         case CMD_802_11_BEACON_CTRL:
1484                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1485                 break;
1486         default:
1487                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1488                 ret = -1;
1489                 break;
1490         }
1491
1492         /* return error, since the command preparation failed */
1493         if (ret != 0) {
1494                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1495                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1496                 ret = -1;
1497                 goto done;
1498         }
1499
1500         cmdnode->cmdwaitqwoken = 0;
1501
1502         lbs_queue_cmd(priv, cmdnode);
1503         wake_up_interruptible(&priv->waitq);
1504
1505         if (wait_option & CMD_OPTION_WAITFORRSP) {
1506                 lbs_deb_host("PREP_CMD: wait for response\n");
1507                 might_sleep();
1508                 wait_event_interruptible(cmdnode->cmdwait_q,
1509                                          cmdnode->cmdwaitqwoken);
1510         }
1511
1512         spin_lock_irqsave(&priv->driver_lock, flags);
1513         if (priv->cur_cmd_retcode) {
1514                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1515                        priv->cur_cmd_retcode);
1516                 priv->cur_cmd_retcode = 0;
1517                 ret = -1;
1518         }
1519         spin_unlock_irqrestore(&priv->driver_lock, flags);
1520
1521 done:
1522         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1523         return ret;
1524 }
1525
1526 /**
1527  *  @brief This function allocates the command buffer and link
1528  *  it to command free queue.
1529  *
1530  *  @param priv         A pointer to struct lbs_private structure
1531  *  @return             0 or -1
1532  */
1533 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1534 {
1535         int ret = 0;
1536         u32 bufsize;
1537         u32 i;
1538         struct cmd_ctrl_node *cmdarray;
1539
1540         lbs_deb_enter(LBS_DEB_HOST);
1541
1542         /* Allocate and initialize the command array */
1543         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1544         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1545                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1546                 ret = -1;
1547                 goto done;
1548         }
1549         priv->cmd_array = cmdarray;
1550
1551         /* Allocate and initialize each command buffer in the command array */
1552         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1553                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1554                 if (!cmdarray[i].cmdbuf) {
1555                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1556                         ret = -1;
1557                         goto done;
1558                 }
1559         }
1560
1561         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1562                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1563                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1564         }
1565         ret = 0;
1566
1567 done:
1568         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1569         return ret;
1570 }
1571
1572 /**
1573  *  @brief This function frees the command buffer.
1574  *
1575  *  @param priv         A pointer to struct lbs_private structure
1576  *  @return             0 or -1
1577  */
1578 int lbs_free_cmd_buffer(struct lbs_private *priv)
1579 {
1580         struct cmd_ctrl_node *cmdarray;
1581         unsigned int i;
1582
1583         lbs_deb_enter(LBS_DEB_HOST);
1584
1585         /* need to check if cmd array is allocated or not */
1586         if (priv->cmd_array == NULL) {
1587                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1588                 goto done;
1589         }
1590
1591         cmdarray = priv->cmd_array;
1592
1593         /* Release shared memory buffers */
1594         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1595                 if (cmdarray[i].cmdbuf) {
1596                         kfree(cmdarray[i].cmdbuf);
1597                         cmdarray[i].cmdbuf = NULL;
1598                 }
1599         }
1600
1601         /* Release cmd_ctrl_node */
1602         if (priv->cmd_array) {
1603                 kfree(priv->cmd_array);
1604                 priv->cmd_array = NULL;
1605         }
1606
1607 done:
1608         lbs_deb_leave(LBS_DEB_HOST);
1609         return 0;
1610 }
1611
1612 /**
1613  *  @brief This function gets a free command node if available in
1614  *  command free queue.
1615  *
1616  *  @param priv         A pointer to struct lbs_private structure
1617  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1618  */
1619 static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1620 {
1621         struct cmd_ctrl_node *tempnode;
1622         unsigned long flags;
1623
1624         lbs_deb_enter(LBS_DEB_HOST);
1625
1626         if (!priv)
1627                 return NULL;
1628
1629         spin_lock_irqsave(&priv->driver_lock, flags);
1630
1631         if (!list_empty(&priv->cmdfreeq)) {
1632                 tempnode = list_first_entry(&priv->cmdfreeq,
1633                                             struct cmd_ctrl_node, list);
1634                 list_del(&tempnode->list);
1635         } else {
1636                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1637                 tempnode = NULL;
1638         }
1639
1640         spin_unlock_irqrestore(&priv->driver_lock, flags);
1641
1642         lbs_deb_leave(LBS_DEB_HOST);
1643         return tempnode;
1644 }
1645
1646 /**
1647  *  @brief This function executes next command in command
1648  *  pending queue. It will put fimware back to PS mode
1649  *  if applicable.
1650  *
1651  *  @param priv     A pointer to struct lbs_private structure
1652  *  @return        0 or -1
1653  */
1654 int lbs_execute_next_command(struct lbs_private *priv)
1655 {
1656         struct cmd_ctrl_node *cmdnode = NULL;
1657         struct cmd_header *cmd;
1658         unsigned long flags;
1659         int ret = 0;
1660
1661         /* Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1662          * only caller to us is lbs_thread() and we get even when a
1663          * data packet is received */
1664         lbs_deb_enter(LBS_DEB_THREAD);
1665
1666         spin_lock_irqsave(&priv->driver_lock, flags);
1667
1668         if (priv->cur_cmd) {
1669                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1670                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1671                 ret = -1;
1672                 goto done;
1673         }
1674
1675         if (!list_empty(&priv->cmdpendingq)) {
1676                 cmdnode = list_first_entry(&priv->cmdpendingq,
1677                                            struct cmd_ctrl_node, list);
1678         }
1679
1680         spin_unlock_irqrestore(&priv->driver_lock, flags);
1681
1682         if (cmdnode) {
1683                 cmd = cmdnode->cmdbuf;
1684
1685                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1686                         if ((priv->psstate == PS_STATE_SLEEP) ||
1687                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1688                                 lbs_deb_host(
1689                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1690                                        le16_to_cpu(cmd->command),
1691                                        priv->psstate);
1692                                 ret = -1;
1693                                 goto done;
1694                         }
1695                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1696                                      "0x%04x in psstate %d\n",
1697                                      le16_to_cpu(cmd->command), priv->psstate);
1698                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1699                         /*
1700                          * 1. Non-PS command:
1701                          * Queue it. set needtowakeup to TRUE if current state
1702                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1703                          * 2. PS command but not Exit_PS:
1704                          * Ignore it.
1705                          * 3. PS command Exit_PS:
1706                          * Set needtowakeup to TRUE if current state is SLEEP,
1707                          * otherwise send this command down to firmware
1708                          * immediately.
1709                          */
1710                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1711                                 /*  Prepare to send Exit PS,
1712                                  *  this non PS command will be sent later */
1713                                 if ((priv->psstate == PS_STATE_SLEEP)
1714                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1715                                     ) {
1716                                         /* w/ new scheme, it will not reach here.
1717                                            since it is blocked in main_thread. */
1718                                         priv->needtowakeup = 1;
1719                                 } else
1720                                         lbs_ps_wakeup(priv, 0);
1721
1722                                 ret = 0;
1723                                 goto done;
1724                         } else {
1725                                 /*
1726                                  * PS command. Ignore it if it is not Exit_PS.
1727                                  * otherwise send it down immediately.
1728                                  */
1729                                 struct cmd_ds_802_11_ps_mode *psm = (void *)&cmd[1];
1730
1731                                 lbs_deb_host(
1732                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1733                                        psm->action);
1734                                 if (psm->action !=
1735                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1736                                         lbs_deb_host(
1737                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1738                                         list_del(&cmdnode->list);
1739                                         spin_lock_irqsave(&priv->driver_lock, flags);
1740                                         lbs_complete_command(priv, cmdnode, 0);
1741                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1742
1743                                         ret = 0;
1744                                         goto done;
1745                                 }
1746
1747                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1748                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1749                                         lbs_deb_host(
1750                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1751                                         list_del(&cmdnode->list);
1752                                         spin_lock_irqsave(&priv->driver_lock, flags);
1753                                         lbs_complete_command(priv, cmdnode, 0);
1754                                         spin_unlock_irqrestore(&priv->driver_lock, flags);
1755                                         priv->needtowakeup = 1;
1756
1757                                         ret = 0;
1758                                         goto done;
1759                                 }
1760
1761                                 lbs_deb_host(
1762                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1763                         }
1764                 }
1765                 list_del(&cmdnode->list);
1766                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1767                             le16_to_cpu(cmd->command));
1768                 lbs_submit_command(priv, cmdnode);
1769         } else {
1770                 /*
1771                  * check if in power save mode, if yes, put the device back
1772                  * to PS mode
1773                  */
1774                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1775                     (priv->psstate == PS_STATE_FULL_POWER) &&
1776                     ((priv->connect_status == LBS_CONNECTED) ||
1777                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1778                         if (priv->secinfo.WPAenabled ||
1779                             priv->secinfo.WPA2enabled) {
1780                                 /* check for valid WPA group keys */
1781                                 if (priv->wpa_mcast_key.len ||
1782                                     priv->wpa_unicast_key.len) {
1783                                         lbs_deb_host(
1784                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1785                                                " go back to PS_SLEEP");
1786                                         lbs_ps_sleep(priv, 0);
1787                                 }
1788                         } else {
1789                                 lbs_deb_host(
1790                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1791                                        "go back to PS_SLEEP");
1792                                 lbs_ps_sleep(priv, 0);
1793                         }
1794                 }
1795         }
1796
1797         ret = 0;
1798 done:
1799         lbs_deb_leave(LBS_DEB_THREAD);
1800         return ret;
1801 }
1802
1803 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1804 {
1805         union iwreq_data iwrq;
1806         u8 buf[50];
1807
1808         lbs_deb_enter(LBS_DEB_WEXT);
1809
1810         memset(&iwrq, 0, sizeof(union iwreq_data));
1811         memset(buf, 0, sizeof(buf));
1812
1813         snprintf(buf, sizeof(buf) - 1, "%s", str);
1814
1815         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1816
1817         /* Send Event to upper layer */
1818         lbs_deb_wext("event indication string %s\n", (char *)buf);
1819         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1820         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1821
1822         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1823
1824         lbs_deb_leave(LBS_DEB_WEXT);
1825 }
1826
1827 static void lbs_send_confirmsleep(struct lbs_private *priv)
1828 {
1829         unsigned long flags;
1830         int ret;
1831
1832         lbs_deb_enter(LBS_DEB_HOST);
1833         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm", (u8 *) &confirm_sleep,
1834                 sizeof(confirm_sleep));
1835
1836         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) &confirm_sleep,
1837                 sizeof(confirm_sleep));
1838         if (ret) {
1839                 lbs_pr_alert("confirm_sleep failed\n");
1840                 goto out;
1841         }
1842
1843         spin_lock_irqsave(&priv->driver_lock, flags);
1844
1845         /* We don't get a response on the sleep-confirmation */
1846         priv->dnld_sent = DNLD_RES_RECEIVED;
1847
1848         /* If nothing to do, go back to sleep (?) */
1849         if (!__kfifo_len(priv->event_fifo) && !priv->resp_len[priv->resp_idx])
1850                 priv->psstate = PS_STATE_SLEEP;
1851
1852         spin_unlock_irqrestore(&priv->driver_lock, flags);
1853
1854 out:
1855         lbs_deb_leave(LBS_DEB_HOST);
1856 }
1857
1858 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1859 {
1860         lbs_deb_enter(LBS_DEB_HOST);
1861
1862         /*
1863          * PS is currently supported only in Infrastructure mode
1864          * Remove this check if it is to be supported in IBSS mode also
1865          */
1866
1867         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1868                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1869
1870         lbs_deb_leave(LBS_DEB_HOST);
1871 }
1872
1873 /**
1874  *  @brief This function sends Exit_PS command to firmware.
1875  *
1876  *  @param priv         A pointer to struct lbs_private structure
1877  *  @param wait_option  wait response or not
1878  *  @return             n/a
1879  */
1880 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
1881 {
1882         __le32 Localpsmode;
1883
1884         lbs_deb_enter(LBS_DEB_HOST);
1885
1886         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
1887
1888         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1889                               CMD_SUBCMD_EXIT_PS,
1890                               wait_option, 0, &Localpsmode);
1891
1892         lbs_deb_leave(LBS_DEB_HOST);
1893 }
1894
1895 /**
1896  *  @brief This function checks condition and prepares to
1897  *  send sleep confirm command to firmware if ok.
1898  *
1899  *  @param priv         A pointer to struct lbs_private structure
1900  *  @param psmode       Power Saving mode
1901  *  @return             n/a
1902  */
1903 void lbs_ps_confirm_sleep(struct lbs_private *priv)
1904 {
1905         unsigned long flags =0;
1906         int allowed = 1;
1907
1908         lbs_deb_enter(LBS_DEB_HOST);
1909
1910         spin_lock_irqsave(&priv->driver_lock, flags);
1911         if (priv->dnld_sent) {
1912                 allowed = 0;
1913                 lbs_deb_host("dnld_sent was set\n");
1914         }
1915
1916         /* In-progress command? */
1917         if (priv->cur_cmd) {
1918                 allowed = 0;
1919                 lbs_deb_host("cur_cmd was set\n");
1920         }
1921
1922         /* Pending events or command responses? */
1923         if (__kfifo_len(priv->event_fifo) || priv->resp_len[priv->resp_idx]) {
1924                 allowed = 0;
1925                 lbs_deb_host("pending events or command responses\n");
1926         }
1927         spin_unlock_irqrestore(&priv->driver_lock, flags);
1928
1929         if (allowed) {
1930                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
1931                 lbs_send_confirmsleep(priv);
1932         } else {
1933                 lbs_deb_host("sleep confirm has been delayed\n");
1934         }
1935
1936         lbs_deb_leave(LBS_DEB_HOST);
1937 }
1938
1939
1940 static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
1941         uint16_t command, struct cmd_header *in_cmd, int in_cmd_size,
1942         int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
1943         unsigned long callback_arg)
1944 {
1945         struct cmd_ctrl_node *cmdnode;
1946
1947         lbs_deb_enter(LBS_DEB_HOST);
1948
1949         if (priv->surpriseremoved) {
1950                 lbs_deb_host("PREP_CMD: card removed\n");
1951                 cmdnode = ERR_PTR(-ENOENT);
1952                 goto done;
1953         }
1954
1955         cmdnode = lbs_get_cmd_ctrl_node(priv);
1956         if (cmdnode == NULL) {
1957                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1958
1959                 /* Wake up main thread to execute next command */
1960                 wake_up_interruptible(&priv->waitq);
1961                 cmdnode = ERR_PTR(-ENOBUFS);
1962                 goto done;
1963         }
1964
1965         cmdnode->callback = callback;
1966         cmdnode->callback_arg = callback_arg;
1967
1968         /* Copy the incoming command to the buffer */
1969         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
1970
1971         /* Set sequence number, clean result, move to buffer */
1972         priv->seqnum++;
1973         cmdnode->cmdbuf->command = cpu_to_le16(command);
1974         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
1975         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
1976         cmdnode->cmdbuf->result  = 0;
1977
1978         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
1979
1980         cmdnode->cmdwaitqwoken = 0;
1981         lbs_queue_cmd(priv, cmdnode);
1982         wake_up_interruptible(&priv->waitq);
1983
1984  done:
1985         lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
1986         return cmdnode;
1987 }
1988
1989 void lbs_cmd_async(struct lbs_private *priv, uint16_t command,
1990         struct cmd_header *in_cmd, int in_cmd_size)
1991 {
1992         lbs_deb_enter(LBS_DEB_CMD);
1993         __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
1994                 lbs_cmd_async_callback, 0);
1995         lbs_deb_leave(LBS_DEB_CMD);
1996 }
1997
1998 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
1999               struct cmd_header *in_cmd, int in_cmd_size,
2000               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2001               unsigned long callback_arg)
2002 {
2003         struct cmd_ctrl_node *cmdnode;
2004         unsigned long flags;
2005         int ret = 0;
2006
2007         lbs_deb_enter(LBS_DEB_HOST);
2008
2009         cmdnode = __lbs_cmd_async(priv, command, in_cmd, in_cmd_size,
2010                                   callback, callback_arg);
2011         if (IS_ERR(cmdnode)) {
2012                 ret = PTR_ERR(cmdnode);
2013                 goto done;
2014         }
2015
2016         might_sleep();
2017         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2018
2019         spin_lock_irqsave(&priv->driver_lock, flags);
2020         ret = cmdnode->result;
2021         if (ret)
2022                 lbs_pr_info("PREP_CMD: command 0x%04x failed: %d\n",
2023                             command, ret);
2024
2025         __lbs_cleanup_and_insert_cmd(priv, cmdnode);
2026         spin_unlock_irqrestore(&priv->driver_lock, flags);
2027
2028 done:
2029         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2030         return ret;
2031 }
2032 EXPORT_SYMBOL_GPL(__lbs_cmd);
2033
2034