libertas: convert DATA_RATE to a direct command
[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 "host.h"
8 #include "hostcmd.h"
9 #include "decl.h"
10 #include "defs.h"
11 #include "dev.h"
12 #include "join.h"
13 #include "wext.h"
14 #include "cmd.h"
15
16 static void cleanup_cmdnode(struct cmd_ctrl_node *ptempnode);
17 struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
18 void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
19                     struct cmd_ctrl_node *ptempnode,
20                     u16 wait_option, void *pdata_buf);
21
22
23 /**
24  *  @brief Checks whether a command is allowed in Power Save mode
25  *
26  *  @param command the command ID
27  *  @return        1 if allowed, 0 if not allowed
28  */
29 static u8 is_command_allowed_in_ps(u16 cmd)
30 {
31         switch (cmd) {
32         case CMD_802_11_RSSI:
33                 return 1;
34         default:
35                 break;
36         }
37         return 0;
38 }
39
40 /**
41  *  @brief Updates the hardware details like MAC address and regulatory region
42  *
43  *  @param priv         A pointer to struct lbs_private structure
44  *
45  *  @return             0 on success, error on failure
46  */
47 int lbs_update_hw_spec(struct lbs_private *priv)
48 {
49         struct cmd_ds_get_hw_spec cmd;
50         int ret = -1;
51         u32 i;
52         DECLARE_MAC_BUF(mac);
53
54         lbs_deb_enter(LBS_DEB_CMD);
55
56         memset(&cmd, 0, sizeof(cmd));
57         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
58         memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
59         ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, cmd);
60         if (ret)
61                 goto out;
62
63         priv->fwcapinfo = le32_to_cpu(cmd.fwcapinfo);
64         memcpy(priv->fwreleasenumber, cmd.fwreleasenumber, 4);
65
66         lbs_deb_cmd("GET_HW_SPEC: firmware release %u.%u.%up%u\n",
67                     priv->fwreleasenumber[2], priv->fwreleasenumber[1],
68                     priv->fwreleasenumber[0], priv->fwreleasenumber[3]);
69         lbs_deb_cmd("GET_HW_SPEC: MAC addr %s\n",
70                     print_mac(mac, cmd.permanentaddr));
71         lbs_deb_cmd("GET_HW_SPEC: hardware interface 0x%x, hardware spec 0x%04x\n",
72                     cmd.hwifversion, cmd.version);
73
74         /* Clamp region code to 8-bit since FW spec indicates that it should
75          * only ever be 8-bit, even though the field size is 16-bit.  Some firmware
76          * returns non-zero high 8 bits here.
77          */
78         priv->regioncode = le16_to_cpu(cmd.regioncode) & 0xFF;
79
80         for (i = 0; i < MRVDRV_MAX_REGION_CODE; i++) {
81                 /* use the region code to search for the index */
82                 if (priv->regioncode == lbs_region_code_to_index[i])
83                         break;
84         }
85
86         /* if it's unidentified region code, use the default (USA) */
87         if (i >= MRVDRV_MAX_REGION_CODE) {
88                 priv->regioncode = 0x10;
89                 lbs_pr_info("unidentified region code; using the default (USA)\n");
90         }
91
92         if (priv->current_addr[0] == 0xff)
93                 memmove(priv->current_addr, cmd.permanentaddr, ETH_ALEN);
94
95         memcpy(priv->dev->dev_addr, priv->current_addr, ETH_ALEN);
96         if (priv->mesh_dev)
97                 memcpy(priv->mesh_dev->dev_addr, priv->current_addr, ETH_ALEN);
98
99         if (lbs_set_regiontable(priv, priv->regioncode, 0)) {
100                 ret = -1;
101                 goto out;
102         }
103
104         if (lbs_set_universaltable(priv, 0)) {
105                 ret = -1;
106                 goto out;
107         }
108
109 out:
110         lbs_deb_leave(LBS_DEB_CMD);
111         return ret;
112 }
113
114 static int lbs_cmd_802_11_ps_mode(struct lbs_private *priv,
115                                    struct cmd_ds_command *cmd,
116                                    u16 cmd_action)
117 {
118         struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;
119
120         lbs_deb_enter(LBS_DEB_CMD);
121
122         cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
123         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
124                                 S_DS_GEN);
125         psm->action = cpu_to_le16(cmd_action);
126         psm->multipledtim = 0;
127         switch (cmd_action) {
128         case CMD_SUBCMD_ENTER_PS:
129                 lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");
130
131                 psm->locallisteninterval = 0;
132                 psm->nullpktinterval = 0;
133                 psm->multipledtim =
134                     cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
135                 break;
136
137         case CMD_SUBCMD_EXIT_PS:
138                 lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
139                 break;
140
141         case CMD_SUBCMD_SLEEP_CONFIRMED:
142                 lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
143                 break;
144
145         default:
146                 break;
147         }
148
149         lbs_deb_leave(LBS_DEB_CMD);
150         return 0;
151 }
152
153 static int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
154                                               struct cmd_ds_command *cmd,
155                                               u16 cmd_action, void *pdata_buf)
156 {
157         u16 *timeout = pdata_buf;
158
159         lbs_deb_enter(LBS_DEB_CMD);
160
161         cmd->command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
162         cmd->size =
163             cpu_to_le16(sizeof(struct cmd_ds_802_11_inactivity_timeout)
164                              + S_DS_GEN);
165
166         cmd->params.inactivity_timeout.action = cpu_to_le16(cmd_action);
167
168         if (cmd_action)
169                 cmd->params.inactivity_timeout.timeout = cpu_to_le16(*timeout);
170         else
171                 cmd->params.inactivity_timeout.timeout = 0;
172
173         lbs_deb_leave(LBS_DEB_CMD);
174         return 0;
175 }
176
177 static int lbs_cmd_802_11_sleep_params(struct lbs_private *priv,
178                                         struct cmd_ds_command *cmd,
179                                         u16 cmd_action)
180 {
181         struct cmd_ds_802_11_sleep_params *sp = &cmd->params.sleep_params;
182
183         lbs_deb_enter(LBS_DEB_CMD);
184
185         cmd->size = cpu_to_le16((sizeof(struct cmd_ds_802_11_sleep_params)) +
186                                 S_DS_GEN);
187         cmd->command = cpu_to_le16(CMD_802_11_SLEEP_PARAMS);
188
189         if (cmd_action == CMD_ACT_GET) {
190                 memset(&priv->sp, 0, sizeof(struct sleep_params));
191                 memset(sp, 0, sizeof(struct cmd_ds_802_11_sleep_params));
192                 sp->action = cpu_to_le16(cmd_action);
193         } else if (cmd_action == CMD_ACT_SET) {
194                 sp->action = cpu_to_le16(cmd_action);
195                 sp->error = cpu_to_le16(priv->sp.sp_error);
196                 sp->offset = cpu_to_le16(priv->sp.sp_offset);
197                 sp->stabletime = cpu_to_le16(priv->sp.sp_stabletime);
198                 sp->calcontrol = (u8) priv->sp.sp_calcontrol;
199                 sp->externalsleepclk = (u8) priv->sp.sp_extsleepclk;
200                 sp->reserved = cpu_to_le16(priv->sp.sp_reserved);
201         }
202
203         lbs_deb_leave(LBS_DEB_CMD);
204         return 0;
205 }
206
207 static int lbs_cmd_802_11_set_wep(struct lbs_private *priv,
208                                    struct cmd_ds_command *cmd,
209                                    u32 cmd_act,
210                                    void * pdata_buf)
211 {
212         struct cmd_ds_802_11_set_wep *wep = &cmd->params.wep;
213         int ret = 0;
214         struct assoc_request * assoc_req = pdata_buf;
215
216         lbs_deb_enter(LBS_DEB_CMD);
217
218         cmd->command = cpu_to_le16(CMD_802_11_SET_WEP);
219         cmd->size = cpu_to_le16(sizeof(*wep) + S_DS_GEN);
220
221         if (cmd_act == CMD_ACT_ADD) {
222                 int i;
223
224                 if (!assoc_req) {
225                         lbs_deb_cmd("Invalid association request!");
226                         ret = -1;
227                         goto done;
228                 }
229
230                 wep->action = cpu_to_le16(CMD_ACT_ADD);
231
232                 /* default tx key index */
233                 wep->keyindex = cpu_to_le16((u16)(assoc_req->wep_tx_keyidx &
234                                                   (u32)CMD_WEP_KEY_INDEX_MASK));
235
236                 /* Copy key types and material to host command structure */
237                 for (i = 0; i < 4; i++) {
238                         struct enc_key * pkey = &assoc_req->wep_keys[i];
239
240                         switch (pkey->len) {
241                         case KEY_LEN_WEP_40:
242                                 wep->keytype[i] = CMD_TYPE_WEP_40_BIT;
243                                 memmove(&wep->keymaterial[i], pkey->key,
244                                         pkey->len);
245                                 lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
246                                 break;
247                         case KEY_LEN_WEP_104:
248                                 wep->keytype[i] = CMD_TYPE_WEP_104_BIT;
249                                 memmove(&wep->keymaterial[i], pkey->key,
250                                         pkey->len);
251                                 lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
252                                 break;
253                         case 0:
254                                 break;
255                         default:
256                                 lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
257                                        i, pkey->len);
258                                 ret = -1;
259                                 goto done;
260                                 break;
261                         }
262                 }
263         } else if (cmd_act == CMD_ACT_REMOVE) {
264                 /* ACT_REMOVE clears _all_ WEP keys */
265                 wep->action = cpu_to_le16(CMD_ACT_REMOVE);
266
267                 /* default tx key index */
268                 wep->keyindex = cpu_to_le16((u16)(priv->wep_tx_keyidx &
269                                                   (u32)CMD_WEP_KEY_INDEX_MASK));
270                 lbs_deb_cmd("SET_WEP: remove key %d\n", priv->wep_tx_keyidx);
271         }
272
273         ret = 0;
274
275 done:
276         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
277         return ret;
278 }
279
280 static int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv,
281                                       struct cmd_ds_command *cmd,
282                                       u16 cmd_action,
283                                       void * pdata_buf)
284 {
285         struct cmd_ds_802_11_enable_rsn *penableRSN = &cmd->params.enbrsn;
286         u32 * enable = pdata_buf;
287
288         lbs_deb_enter(LBS_DEB_CMD);
289
290         cmd->command = cpu_to_le16(CMD_802_11_ENABLE_RSN);
291         cmd->size = cpu_to_le16(sizeof(*penableRSN) + S_DS_GEN);
292         penableRSN->action = cpu_to_le16(cmd_action);
293
294         if (cmd_action == CMD_ACT_SET) {
295                 if (*enable)
296                         penableRSN->enable = cpu_to_le16(CMD_ENABLE_RSN);
297                 else
298                         penableRSN->enable = cpu_to_le16(CMD_DISABLE_RSN);
299                 lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
300         }
301
302         lbs_deb_leave(LBS_DEB_CMD);
303         return 0;
304 }
305
306
307 static ssize_t lbs_tlv_size(const u8 *tlv, u16 size)
308 {
309         ssize_t pos = 0;
310         struct mrvlietypesheader *tlv_h;
311         while (pos < size) {
312                 u16 length;
313                 tlv_h = (struct mrvlietypesheader *) tlv;
314                 if (tlv_h->len == 0)
315                         return pos;
316                 length = le16_to_cpu(tlv_h->len) +
317                         sizeof(struct mrvlietypesheader);
318                 pos += length;
319                 tlv += length;
320         }
321         return pos;
322 }
323
324
325 static void lbs_cmd_802_11_subscribe_event(struct lbs_private *priv,
326         struct cmd_ds_command *cmd, u16 cmd_action,
327         void *pdata_buf)
328 {
329         struct cmd_ds_802_11_subscribe_event *events =
330                 (struct cmd_ds_802_11_subscribe_event *) pdata_buf;
331
332         /* pdata_buf points to a struct cmd_ds_802_11_subscribe_event and room
333          * for various Marvell TLVs */
334
335         lbs_deb_enter(LBS_DEB_CMD);
336
337         cmd->size = cpu_to_le16(sizeof(*events)
338                         - sizeof(events->tlv)
339                         + S_DS_GEN);
340         cmd->params.subscribe_event.action = cpu_to_le16(cmd_action);
341         if (cmd_action == CMD_ACT_GET) {
342                 cmd->params.subscribe_event.events = 0;
343         } else {
344                 ssize_t sz = lbs_tlv_size(events->tlv, sizeof(events->tlv));
345                 cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) + sz);
346                 cmd->params.subscribe_event.events = events->events;
347                 memcpy(cmd->params.subscribe_event.tlv, events->tlv, sz);
348         }
349
350         lbs_deb_leave(LBS_DEB_CMD);
351 }
352
353 static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset,
354                             struct enc_key * pkey)
355 {
356         lbs_deb_enter(LBS_DEB_CMD);
357
358         if (pkey->flags & KEY_INFO_WPA_ENABLED) {
359                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
360         }
361         if (pkey->flags & KEY_INFO_WPA_UNICAST) {
362                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
363         }
364         if (pkey->flags & KEY_INFO_WPA_MCAST) {
365                 pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
366         }
367
368         pkeyparamset->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
369         pkeyparamset->keytypeid = cpu_to_le16(pkey->type);
370         pkeyparamset->keylen = cpu_to_le16(pkey->len);
371         memcpy(pkeyparamset->key, pkey->key, pkey->len);
372         pkeyparamset->length = cpu_to_le16(  sizeof(pkeyparamset->keytypeid)
373                                                 + sizeof(pkeyparamset->keyinfo)
374                                                 + sizeof(pkeyparamset->keylen)
375                                                 + sizeof(pkeyparamset->key));
376         lbs_deb_leave(LBS_DEB_CMD);
377 }
378
379 static int lbs_cmd_802_11_key_material(struct lbs_private *priv,
380                                         struct cmd_ds_command *cmd,
381                                         u16 cmd_action,
382                                         u32 cmd_oid, void *pdata_buf)
383 {
384         struct cmd_ds_802_11_key_material *pkeymaterial =
385             &cmd->params.keymaterial;
386         struct assoc_request * assoc_req = pdata_buf;
387         int ret = 0;
388         int index = 0;
389
390         lbs_deb_enter(LBS_DEB_CMD);
391
392         cmd->command = cpu_to_le16(CMD_802_11_KEY_MATERIAL);
393         pkeymaterial->action = cpu_to_le16(cmd_action);
394
395         if (cmd_action == CMD_ACT_GET) {
396                 cmd->size = cpu_to_le16(S_DS_GEN + sizeof (pkeymaterial->action));
397                 ret = 0;
398                 goto done;
399         }
400
401         memset(&pkeymaterial->keyParamSet, 0, sizeof(pkeymaterial->keyParamSet));
402
403         if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
404                 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
405                                 &assoc_req->wpa_unicast_key);
406                 index++;
407         }
408
409         if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
410                 set_one_wpa_key(&pkeymaterial->keyParamSet[index],
411                                 &assoc_req->wpa_mcast_key);
412                 index++;
413         }
414
415         cmd->size = cpu_to_le16(  S_DS_GEN
416                                 + sizeof (pkeymaterial->action)
417                                 + (index * sizeof(struct MrvlIEtype_keyParamSet)));
418
419         ret = 0;
420
421 done:
422         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
423         return ret;
424 }
425
426 static int lbs_cmd_802_11_reset(struct lbs_private *priv,
427                                  struct cmd_ds_command *cmd, int cmd_action)
428 {
429         struct cmd_ds_802_11_reset *reset = &cmd->params.reset;
430
431         lbs_deb_enter(LBS_DEB_CMD);
432
433         cmd->command = cpu_to_le16(CMD_802_11_RESET);
434         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
435         reset->action = cpu_to_le16(cmd_action);
436
437         lbs_deb_leave(LBS_DEB_CMD);
438         return 0;
439 }
440
441 static int lbs_cmd_802_11_get_log(struct lbs_private *priv,
442                                    struct cmd_ds_command *cmd)
443 {
444         lbs_deb_enter(LBS_DEB_CMD);
445         cmd->command = cpu_to_le16(CMD_802_11_GET_LOG);
446         cmd->size =
447                 cpu_to_le16(sizeof(struct cmd_ds_802_11_get_log) + S_DS_GEN);
448
449         lbs_deb_leave(LBS_DEB_CMD);
450         return 0;
451 }
452
453 static int lbs_cmd_802_11_get_stat(struct lbs_private *priv,
454                                     struct cmd_ds_command *cmd)
455 {
456         lbs_deb_enter(LBS_DEB_CMD);
457         cmd->command = cpu_to_le16(CMD_802_11_GET_STAT);
458         cmd->size =
459             cpu_to_le16(sizeof(struct cmd_ds_802_11_get_stat) + S_DS_GEN);
460
461         lbs_deb_leave(LBS_DEB_CMD);
462         return 0;
463 }
464
465 static int lbs_cmd_802_11_snmp_mib(struct lbs_private *priv,
466                                     struct cmd_ds_command *cmd,
467                                     int cmd_action,
468                                     int cmd_oid, void *pdata_buf)
469 {
470         struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
471         u8 ucTemp;
472
473         lbs_deb_enter(LBS_DEB_CMD);
474
475         lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);
476
477         cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
478         cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);
479
480         switch (cmd_oid) {
481         case OID_802_11_INFRASTRUCTURE_MODE:
482         {
483                 u8 mode = (u8) (size_t) pdata_buf;
484                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
485                 pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
486                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u8));
487                 if (mode == IW_MODE_ADHOC) {
488                         ucTemp = SNMP_MIB_VALUE_ADHOC;
489                 } else {
490                         /* Infra and Auto modes */
491                         ucTemp = SNMP_MIB_VALUE_INFRA;
492                 }
493
494                 memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));
495
496                 break;
497         }
498
499         case OID_802_11D_ENABLE:
500                 {
501                         u32 ulTemp;
502
503                         pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);
504
505                         if (cmd_action == CMD_ACT_SET) {
506                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
507                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
508                                 ulTemp = *(u32 *)pdata_buf;
509                                 *((__le16 *)(pSNMPMIB->value)) =
510                                     cpu_to_le16((u16) ulTemp);
511                         }
512                         break;
513                 }
514
515         case OID_802_11_FRAGMENTATION_THRESHOLD:
516                 {
517                         u32 ulTemp;
518
519                         pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);
520
521                         if (cmd_action == CMD_ACT_GET) {
522                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
523                         } else if (cmd_action == CMD_ACT_SET) {
524                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
525                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
526                                 ulTemp = *((u32 *) pdata_buf);
527                                 *((__le16 *)(pSNMPMIB->value)) =
528                                     cpu_to_le16((u16) ulTemp);
529
530                         }
531
532                         break;
533                 }
534
535         case OID_802_11_RTS_THRESHOLD:
536                 {
537
538                         u32 ulTemp;
539                         pSNMPMIB->oid = cpu_to_le16(RTSTHRESH_I);
540
541                         if (cmd_action == CMD_ACT_GET) {
542                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
543                         } else if (cmd_action == CMD_ACT_SET) {
544                                 pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
545                                 pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
546                                 ulTemp = *((u32 *)pdata_buf);
547                                 *(__le16 *)(pSNMPMIB->value) =
548                                     cpu_to_le16((u16) ulTemp);
549
550                         }
551                         break;
552                 }
553         case OID_802_11_TX_RETRYCOUNT:
554                 pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);
555
556                 if (cmd_action == CMD_ACT_GET) {
557                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
558                 } else if (cmd_action == CMD_ACT_SET) {
559                         pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
560                         pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
561                         *((__le16 *)(pSNMPMIB->value)) =
562                             cpu_to_le16((u16) priv->txretrycount);
563                 }
564
565                 break;
566         default:
567                 break;
568         }
569
570         lbs_deb_cmd(
571                "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
572                le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
573                le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));
574
575         lbs_deb_cmd(
576                "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
577                le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
578                le16_to_cpu(pSNMPMIB->bufsize),
579                le16_to_cpu(*(__le16 *) pSNMPMIB->value));
580
581         lbs_deb_leave(LBS_DEB_CMD);
582         return 0;
583 }
584
585 static int lbs_cmd_802_11_radio_control(struct lbs_private *priv,
586                                          struct cmd_ds_command *cmd,
587                                          int cmd_action)
588 {
589         struct cmd_ds_802_11_radio_control *pradiocontrol = &cmd->params.radio;
590
591         lbs_deb_enter(LBS_DEB_CMD);
592
593         cmd->size =
594             cpu_to_le16((sizeof(struct cmd_ds_802_11_radio_control)) +
595                              S_DS_GEN);
596         cmd->command = cpu_to_le16(CMD_802_11_RADIO_CONTROL);
597
598         pradiocontrol->action = cpu_to_le16(cmd_action);
599
600         switch (priv->preamble) {
601         case CMD_TYPE_SHORT_PREAMBLE:
602                 pradiocontrol->control = cpu_to_le16(SET_SHORT_PREAMBLE);
603                 break;
604
605         case CMD_TYPE_LONG_PREAMBLE:
606                 pradiocontrol->control = cpu_to_le16(SET_LONG_PREAMBLE);
607                 break;
608
609         case CMD_TYPE_AUTO_PREAMBLE:
610         default:
611                 pradiocontrol->control = cpu_to_le16(SET_AUTO_PREAMBLE);
612                 break;
613         }
614
615         if (priv->radioon)
616                 pradiocontrol->control |= cpu_to_le16(TURN_ON_RF);
617         else
618                 pradiocontrol->control &= cpu_to_le16(~TURN_ON_RF);
619
620         lbs_deb_leave(LBS_DEB_CMD);
621         return 0;
622 }
623
624 static int lbs_cmd_802_11_rf_tx_power(struct lbs_private *priv,
625                                        struct cmd_ds_command *cmd,
626                                        u16 cmd_action, void *pdata_buf)
627 {
628
629         struct cmd_ds_802_11_rf_tx_power *prtp = &cmd->params.txp;
630
631         lbs_deb_enter(LBS_DEB_CMD);
632
633         cmd->size =
634             cpu_to_le16((sizeof(struct cmd_ds_802_11_rf_tx_power)) + S_DS_GEN);
635         cmd->command = cpu_to_le16(CMD_802_11_RF_TX_POWER);
636         prtp->action = cpu_to_le16(cmd_action);
637
638         lbs_deb_cmd("RF_TX_POWER_CMD: size:%d cmd:0x%x Act:%d\n",
639                     le16_to_cpu(cmd->size), le16_to_cpu(cmd->command),
640                     le16_to_cpu(prtp->action));
641
642         switch (cmd_action) {
643         case CMD_ACT_TX_POWER_OPT_GET:
644                 prtp->action = cpu_to_le16(CMD_ACT_GET);
645                 prtp->currentlevel = 0;
646                 break;
647
648         case CMD_ACT_TX_POWER_OPT_SET_HIGH:
649                 prtp->action = cpu_to_le16(CMD_ACT_SET);
650                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_HIGH);
651                 break;
652
653         case CMD_ACT_TX_POWER_OPT_SET_MID:
654                 prtp->action = cpu_to_le16(CMD_ACT_SET);
655                 prtp->currentlevel = cpu_to_le16(CMD_ACT_TX_POWER_INDEX_MID);
656                 break;
657
658         case CMD_ACT_TX_POWER_OPT_SET_LOW:
659                 prtp->action = cpu_to_le16(CMD_ACT_SET);
660                 prtp->currentlevel = cpu_to_le16(*((u16 *) pdata_buf));
661                 break;
662         }
663
664         lbs_deb_leave(LBS_DEB_CMD);
665         return 0;
666 }
667
668 static int lbs_cmd_802_11_monitor_mode(struct lbs_private *priv,
669                                       struct cmd_ds_command *cmd,
670                                       u16 cmd_action, void *pdata_buf)
671 {
672         struct cmd_ds_802_11_monitor_mode *monitor = &cmd->params.monitor;
673
674         cmd->command = cpu_to_le16(CMD_802_11_MONITOR_MODE);
675         cmd->size =
676             cpu_to_le16(sizeof(struct cmd_ds_802_11_monitor_mode) +
677                              S_DS_GEN);
678
679         monitor->action = cpu_to_le16(cmd_action);
680         if (cmd_action == CMD_ACT_SET) {
681                 monitor->mode =
682                     cpu_to_le16((u16) (*(u32 *) pdata_buf));
683         }
684
685         return 0;
686 }
687
688 static int lbs_cmd_802_11_rate_adapt_rateset(struct lbs_private *priv,
689                                               struct cmd_ds_command *cmd,
690                                               u16 cmd_action)
691 {
692         struct cmd_ds_802_11_rate_adapt_rateset
693         *rateadapt = &cmd->params.rateset;
694
695         lbs_deb_enter(LBS_DEB_CMD);
696         cmd->size =
697             cpu_to_le16(sizeof(struct cmd_ds_802_11_rate_adapt_rateset)
698                              + S_DS_GEN);
699         cmd->command = cpu_to_le16(CMD_802_11_RATE_ADAPT_RATESET);
700
701         rateadapt->action = cpu_to_le16(cmd_action);
702         rateadapt->enablehwauto = cpu_to_le16(priv->enablehwauto);
703         rateadapt->bitmap = cpu_to_le16(priv->ratebitmap);
704
705         lbs_deb_leave(LBS_DEB_CMD);
706         return 0;
707 }
708
709 /**
710  *  @brief Get the current data rate
711  *
712  *  @param priv         A pointer to struct lbs_private structure
713  *
714  *  @return             The data rate on success, error on failure
715  */
716 int lbs_get_data_rate(struct lbs_private *priv)
717 {
718         struct cmd_ds_802_11_data_rate cmd;
719         int ret = -1;
720
721         lbs_deb_enter(LBS_DEB_CMD);
722
723         memset(&cmd, 0, sizeof(cmd));
724         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
725         cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
726
727         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, cmd);
728         if (ret)
729                 goto out;
730
731         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
732
733         ret = (int) lbs_fw_index_to_data_rate(cmd.rates[0]);
734         lbs_deb_cmd("DATA_RATE: current rate 0x%02x\n", ret);
735
736 out:
737         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
738         return ret;
739 }
740
741 /**
742  *  @brief Set the data rate
743  *
744  *  @param priv         A pointer to struct lbs_private structure
745  *  @param rate         The desired data rate, or 0 to clear a locked rate
746  *
747  *  @return             0 on success, error on failure
748  */
749 int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
750 {
751         struct cmd_ds_802_11_data_rate cmd;
752         int ret = 0;
753
754         lbs_deb_enter(LBS_DEB_CMD);
755
756         memset(&cmd, 0, sizeof(cmd));
757         cmd.hdr.size = cpu_to_le16(sizeof(cmd));
758
759         if (rate > 0) {
760                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_FIX_RATE);
761                 cmd.rates[0] = lbs_data_rate_to_fw_index(rate);
762                 if (cmd.rates[0] == 0) {
763                         lbs_deb_cmd("DATA_RATE: invalid requested rate of"
764                                     " 0x%02X\n", rate);
765                         ret = 0;
766                         goto out;
767                 }
768                 lbs_deb_cmd("DATA_RATE: set fixed 0x%02X\n", cmd.rates[0]);
769         } else {
770                 cmd.action = cpu_to_le16(CMD_ACT_SET_TX_AUTO);
771                 lbs_deb_cmd("DATA_RATE: setting auto\n");
772         }
773
774         ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, cmd);
775         if (ret)
776                 goto out;
777
778         lbs_deb_hex(LBS_DEB_CMD, "DATA_RATE_RESP", (u8 *) &cmd, sizeof (cmd));
779
780         /* FIXME: get actual rates FW can do if this command actually returns
781          * all data rates supported.
782          */
783         priv->cur_rate = lbs_fw_index_to_data_rate(cmd.rates[0]);
784         lbs_deb_cmd("DATA_RATE: current rate is 0x%02x\n", priv->cur_rate);
785
786 out:
787         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
788         return ret;
789 }
790
791 static int lbs_cmd_mac_multicast_adr(struct lbs_private *priv,
792                                       struct cmd_ds_command *cmd,
793                                       u16 cmd_action)
794 {
795         struct cmd_ds_mac_multicast_adr *pMCastAdr = &cmd->params.madr;
796
797         lbs_deb_enter(LBS_DEB_CMD);
798         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_multicast_adr) +
799                              S_DS_GEN);
800         cmd->command = cpu_to_le16(CMD_MAC_MULTICAST_ADR);
801
802         lbs_deb_cmd("MULTICAST_ADR: setting %d addresses\n", pMCastAdr->nr_of_adrs);
803         pMCastAdr->action = cpu_to_le16(cmd_action);
804         pMCastAdr->nr_of_adrs =
805             cpu_to_le16((u16) priv->nr_of_multicastmacaddr);
806         memcpy(pMCastAdr->maclist, priv->multicastlist,
807                priv->nr_of_multicastmacaddr * ETH_ALEN);
808
809         lbs_deb_leave(LBS_DEB_CMD);
810         return 0;
811 }
812
813 static int lbs_cmd_802_11_rf_channel(struct lbs_private *priv,
814                                       struct cmd_ds_command *cmd,
815                                       int option, void *pdata_buf)
816 {
817         struct cmd_ds_802_11_rf_channel *rfchan = &cmd->params.rfchannel;
818
819         lbs_deb_enter(LBS_DEB_CMD);
820         cmd->command = cpu_to_le16(CMD_802_11_RF_CHANNEL);
821         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rf_channel) +
822                                 S_DS_GEN);
823
824         if (option == CMD_OPT_802_11_RF_CHANNEL_SET) {
825                 rfchan->currentchannel = cpu_to_le16(*((u16 *) pdata_buf));
826         }
827
828         rfchan->action = cpu_to_le16(option);
829
830         lbs_deb_leave(LBS_DEB_CMD);
831         return 0;
832 }
833
834 static int lbs_cmd_802_11_rssi(struct lbs_private *priv,
835                                 struct cmd_ds_command *cmd)
836 {
837
838         lbs_deb_enter(LBS_DEB_CMD);
839         cmd->command = cpu_to_le16(CMD_802_11_RSSI);
840         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_rssi) + S_DS_GEN);
841         cmd->params.rssi.N = cpu_to_le16(DEFAULT_BCN_AVG_FACTOR);
842
843         /* reset Beacon SNR/NF/RSSI values */
844         priv->SNR[TYPE_BEACON][TYPE_NOAVG] = 0;
845         priv->SNR[TYPE_BEACON][TYPE_AVG] = 0;
846         priv->NF[TYPE_BEACON][TYPE_NOAVG] = 0;
847         priv->NF[TYPE_BEACON][TYPE_AVG] = 0;
848         priv->RSSI[TYPE_BEACON][TYPE_NOAVG] = 0;
849         priv->RSSI[TYPE_BEACON][TYPE_AVG] = 0;
850
851         lbs_deb_leave(LBS_DEB_CMD);
852         return 0;
853 }
854
855 static int lbs_cmd_reg_access(struct lbs_private *priv,
856                                struct cmd_ds_command *cmdptr,
857                                u8 cmd_action, void *pdata_buf)
858 {
859         struct lbs_offset_value *offval;
860
861         lbs_deb_enter(LBS_DEB_CMD);
862
863         offval = (struct lbs_offset_value *)pdata_buf;
864
865         switch (le16_to_cpu(cmdptr->command)) {
866         case CMD_MAC_REG_ACCESS:
867                 {
868                         struct cmd_ds_mac_reg_access *macreg;
869
870                         cmdptr->size =
871                             cpu_to_le16(sizeof (struct cmd_ds_mac_reg_access)
872                                         + S_DS_GEN);
873                         macreg =
874                             (struct cmd_ds_mac_reg_access *)&cmdptr->params.
875                             macreg;
876
877                         macreg->action = cpu_to_le16(cmd_action);
878                         macreg->offset = cpu_to_le16((u16) offval->offset);
879                         macreg->value = cpu_to_le32(offval->value);
880
881                         break;
882                 }
883
884         case CMD_BBP_REG_ACCESS:
885                 {
886                         struct cmd_ds_bbp_reg_access *bbpreg;
887
888                         cmdptr->size =
889                             cpu_to_le16(sizeof
890                                              (struct cmd_ds_bbp_reg_access)
891                                              + S_DS_GEN);
892                         bbpreg =
893                             (struct cmd_ds_bbp_reg_access *)&cmdptr->params.
894                             bbpreg;
895
896                         bbpreg->action = cpu_to_le16(cmd_action);
897                         bbpreg->offset = cpu_to_le16((u16) offval->offset);
898                         bbpreg->value = (u8) offval->value;
899
900                         break;
901                 }
902
903         case CMD_RF_REG_ACCESS:
904                 {
905                         struct cmd_ds_rf_reg_access *rfreg;
906
907                         cmdptr->size =
908                             cpu_to_le16(sizeof
909                                              (struct cmd_ds_rf_reg_access) +
910                                              S_DS_GEN);
911                         rfreg =
912                             (struct cmd_ds_rf_reg_access *)&cmdptr->params.
913                             rfreg;
914
915                         rfreg->action = cpu_to_le16(cmd_action);
916                         rfreg->offset = cpu_to_le16((u16) offval->offset);
917                         rfreg->value = (u8) offval->value;
918
919                         break;
920                 }
921
922         default:
923                 break;
924         }
925
926         lbs_deb_leave(LBS_DEB_CMD);
927         return 0;
928 }
929
930 static int lbs_cmd_802_11_mac_address(struct lbs_private *priv,
931                                        struct cmd_ds_command *cmd,
932                                        u16 cmd_action)
933 {
934
935         lbs_deb_enter(LBS_DEB_CMD);
936         cmd->command = cpu_to_le16(CMD_802_11_MAC_ADDRESS);
937         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_mac_address) +
938                              S_DS_GEN);
939         cmd->result = 0;
940
941         cmd->params.macadd.action = cpu_to_le16(cmd_action);
942
943         if (cmd_action == CMD_ACT_SET) {
944                 memcpy(cmd->params.macadd.macadd,
945                        priv->current_addr, ETH_ALEN);
946                 lbs_deb_hex(LBS_DEB_CMD, "SET_CMD: MAC addr", priv->current_addr, 6);
947         }
948
949         lbs_deb_leave(LBS_DEB_CMD);
950         return 0;
951 }
952
953 static int lbs_cmd_802_11_eeprom_access(struct lbs_private *priv,
954                                          struct cmd_ds_command *cmd,
955                                          int cmd_action, void *pdata_buf)
956 {
957         struct lbs_ioctl_regrdwr *ea = pdata_buf;
958
959         lbs_deb_enter(LBS_DEB_CMD);
960
961         cmd->command = cpu_to_le16(CMD_802_11_EEPROM_ACCESS);
962         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) +
963                                 S_DS_GEN);
964         cmd->result = 0;
965
966         cmd->params.rdeeprom.action = cpu_to_le16(ea->action);
967         cmd->params.rdeeprom.offset = cpu_to_le16(ea->offset);
968         cmd->params.rdeeprom.bytecount = cpu_to_le16(ea->NOB);
969         cmd->params.rdeeprom.value = 0;
970
971         lbs_deb_leave(LBS_DEB_CMD);
972         return 0;
973 }
974
975 static int lbs_cmd_bt_access(struct lbs_private *priv,
976                                struct cmd_ds_command *cmd,
977                                u16 cmd_action, void *pdata_buf)
978 {
979         struct cmd_ds_bt_access *bt_access = &cmd->params.bt;
980         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
981
982         cmd->command = cpu_to_le16(CMD_BT_ACCESS);
983         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_bt_access) + S_DS_GEN);
984         cmd->result = 0;
985         bt_access->action = cpu_to_le16(cmd_action);
986
987         switch (cmd_action) {
988         case CMD_ACT_BT_ACCESS_ADD:
989                 memcpy(bt_access->addr1, pdata_buf, 2 * ETH_ALEN);
990                 lbs_deb_hex(LBS_DEB_MESH, "BT_ADD: blinded MAC addr", bt_access->addr1, 6);
991                 break;
992         case CMD_ACT_BT_ACCESS_DEL:
993                 memcpy(bt_access->addr1, pdata_buf, 1 * ETH_ALEN);
994                 lbs_deb_hex(LBS_DEB_MESH, "BT_DEL: blinded MAC addr", bt_access->addr1, 6);
995                 break;
996         case CMD_ACT_BT_ACCESS_LIST:
997                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
998                 break;
999         case CMD_ACT_BT_ACCESS_RESET:
1000                 break;
1001         case CMD_ACT_BT_ACCESS_SET_INVERT:
1002                 bt_access->id = cpu_to_le32(*(u32 *) pdata_buf);
1003                 break;
1004         case CMD_ACT_BT_ACCESS_GET_INVERT:
1005                 break;
1006         default:
1007                 break;
1008         }
1009         lbs_deb_leave(LBS_DEB_CMD);
1010         return 0;
1011 }
1012
1013 static int lbs_cmd_fwt_access(struct lbs_private *priv,
1014                                struct cmd_ds_command *cmd,
1015                                u16 cmd_action, void *pdata_buf)
1016 {
1017         struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
1018         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1019
1020         cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
1021         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) + S_DS_GEN);
1022         cmd->result = 0;
1023
1024         if (pdata_buf)
1025                 memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
1026         else
1027                 memset(fwt_access, 0, sizeof(*fwt_access));
1028
1029         fwt_access->action = cpu_to_le16(cmd_action);
1030
1031         lbs_deb_leave(LBS_DEB_CMD);
1032         return 0;
1033 }
1034
1035 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
1036                     struct cmd_ds_mesh_access *cmd)
1037 {
1038         int ret;
1039
1040         lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
1041
1042         cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
1043         cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_access) + S_DS_GEN);
1044         cmd->hdr.result = 0;
1045
1046         cmd->action = cpu_to_le16(cmd_action);
1047
1048         ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, (*cmd));
1049
1050         lbs_deb_leave(LBS_DEB_CMD);
1051         return ret;
1052 }
1053 EXPORT_SYMBOL_GPL(lbs_mesh_access);
1054
1055 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
1056                                 struct cmd_ds_command *cmd,
1057                                 u16 cmd_action)
1058 {
1059         struct cmd_ds_802_11_beacon_control
1060                 *bcn_ctrl = &cmd->params.bcn_ctrl;
1061
1062         lbs_deb_enter(LBS_DEB_CMD);
1063         cmd->size =
1064             cpu_to_le16(sizeof(struct cmd_ds_802_11_beacon_control)
1065                              + S_DS_GEN);
1066         cmd->command = cpu_to_le16(CMD_802_11_BEACON_CTRL);
1067
1068         bcn_ctrl->action = cpu_to_le16(cmd_action);
1069         bcn_ctrl->beacon_enable = cpu_to_le16(priv->beacon_enable);
1070         bcn_ctrl->beacon_period = cpu_to_le16(priv->beacon_period);
1071
1072         lbs_deb_leave(LBS_DEB_CMD);
1073         return 0;
1074 }
1075
1076 /*
1077  * Note: NEVER use lbs_queue_cmd() with addtail==0 other than for
1078  * the command timer, because it does not account for queued commands.
1079  */
1080 void lbs_queue_cmd(struct lbs_private *priv,
1081         struct cmd_ctrl_node *cmdnode,
1082         u8 addtail)
1083 {
1084         unsigned long flags;
1085
1086         lbs_deb_enter(LBS_DEB_HOST);
1087
1088         if (!cmdnode || !cmdnode->cmdbuf) {
1089                 lbs_deb_host("QUEUE_CMD: cmdnode or cmdbuf is NULL\n");
1090                 goto done;
1091         }
1092
1093         /* Exit_PS command needs to be queued in the header always. */
1094         if (le16_to_cpu(cmdnode->cmdbuf->command) == CMD_802_11_PS_MODE) {
1095                 struct cmd_ds_802_11_ps_mode *psm = (void *) cmdnode->cmdbuf;
1096
1097                 if (psm->action == cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1098                         if (priv->psstate != PS_STATE_FULL_POWER)
1099                                 addtail = 0;
1100                 }
1101         }
1102
1103         spin_lock_irqsave(&priv->driver_lock, flags);
1104
1105         if (addtail)
1106                 list_add_tail(&cmdnode->list, &priv->cmdpendingq);
1107         else
1108                 list_add(&cmdnode->list, &priv->cmdpendingq);
1109
1110         spin_unlock_irqrestore(&priv->driver_lock, flags);
1111
1112         lbs_deb_host("QUEUE_CMD: inserted command 0x%04x into cmdpendingq\n",
1113                le16_to_cpu(cmdnode->cmdbuf->command));
1114
1115 done:
1116         lbs_deb_leave(LBS_DEB_HOST);
1117 }
1118
1119 /*
1120  * TODO: Fix the issue when DownloadcommandToStation is being called the
1121  * second time when the command times out. All the cmdptr->xxx are in little
1122  * endian and therefore all the comparissions will fail.
1123  * For now - we are not performing the endian conversion the second time - but
1124  * for PS and DEEP_SLEEP we need to worry
1125  */
1126 static int DownloadcommandToStation(struct lbs_private *priv,
1127                                     struct cmd_ctrl_node *cmdnode)
1128 {
1129         unsigned long flags;
1130         struct cmd_header *cmd;
1131         int ret = -1;
1132         u16 cmdsize;
1133         u16 command;
1134
1135         lbs_deb_enter(LBS_DEB_HOST);
1136
1137         if (!priv || !cmdnode) {
1138                 lbs_deb_host("DNLD_CMD: priv or cmdmode is NULL\n");
1139                 goto done;
1140         }
1141
1142         cmd = cmdnode->cmdbuf;
1143
1144         spin_lock_irqsave(&priv->driver_lock, flags);
1145         if (!cmd || !cmd->size) {
1146                 lbs_deb_host("DNLD_CMD: cmdptr is NULL or zero\n");
1147                 __lbs_cleanup_and_insert_cmd(priv, cmdnode);
1148                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1149                 goto done;
1150         }
1151
1152         priv->cur_cmd = cmdnode;
1153         priv->cur_cmd_retcode = 0;
1154         spin_unlock_irqrestore(&priv->driver_lock, flags);
1155
1156         cmdsize = le16_to_cpu(cmd->size);
1157         command = le16_to_cpu(cmd->command);
1158
1159         lbs_deb_host("DNLD_CMD: command 0x%04x, size %d, jiffies %lu\n",
1160                     command, cmdsize, jiffies);
1161         lbs_deb_hex(LBS_DEB_HOST, "DNLD_CMD", (void *) cmdnode->cmdbuf, cmdsize);
1162
1163         cmdnode->cmdwaitqwoken = 0;
1164
1165         ret = priv->hw_host_to_card(priv, MVMS_CMD, (u8 *) cmd, cmdsize);
1166
1167         if (ret != 0) {
1168                 lbs_deb_host("DNLD_CMD: hw_host_to_card failed\n");
1169                 spin_lock_irqsave(&priv->driver_lock, flags);
1170                 priv->cur_cmd_retcode = ret;
1171                 __lbs_cleanup_and_insert_cmd(priv, priv->cur_cmd);
1172                 priv->cur_cmd = NULL;
1173                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1174                 goto done;
1175         }
1176
1177         lbs_deb_cmd("DNLD_CMD: sent command 0x%04x, jiffies %lu\n", command, jiffies);
1178
1179         /* Setup the timer after transmit command */
1180         if (command == CMD_802_11_SCAN || command == CMD_802_11_AUTHENTICATE
1181             || command == CMD_802_11_ASSOCIATE)
1182                 mod_timer(&priv->command_timer, jiffies + (10*HZ));
1183         else
1184                 mod_timer(&priv->command_timer, jiffies + (5*HZ));
1185
1186         ret = 0;
1187
1188 done:
1189         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1190         return ret;
1191 }
1192
1193 static int lbs_cmd_mac_control(struct lbs_private *priv,
1194                                 struct cmd_ds_command *cmd)
1195 {
1196         struct cmd_ds_mac_control *mac = &cmd->params.macctrl;
1197
1198         lbs_deb_enter(LBS_DEB_CMD);
1199
1200         cmd->command = cpu_to_le16(CMD_MAC_CONTROL);
1201         cmd->size = cpu_to_le16(sizeof(struct cmd_ds_mac_control) + S_DS_GEN);
1202         mac->action = cpu_to_le16(priv->currentpacketfilter);
1203
1204         lbs_deb_cmd("MAC_CONTROL: action 0x%x, size %d\n",
1205                     le16_to_cpu(mac->action), le16_to_cpu(cmd->size));
1206
1207         lbs_deb_leave(LBS_DEB_CMD);
1208         return 0;
1209 }
1210
1211 /**
1212  *  This function inserts command node to cmdfreeq
1213  *  after cleans it. Requires priv->driver_lock held.
1214  */
1215 void __lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1216         struct cmd_ctrl_node *ptempcmd)
1217 {
1218
1219         if (!ptempcmd)
1220                 return;
1221
1222         cleanup_cmdnode(ptempcmd);
1223         list_add_tail(&ptempcmd->list, &priv->cmdfreeq);
1224 }
1225
1226 static void lbs_cleanup_and_insert_cmd(struct lbs_private *priv,
1227         struct cmd_ctrl_node *ptempcmd)
1228 {
1229         unsigned long flags;
1230
1231         spin_lock_irqsave(&priv->driver_lock, flags);
1232         __lbs_cleanup_and_insert_cmd(priv, ptempcmd);
1233         spin_unlock_irqrestore(&priv->driver_lock, flags);
1234 }
1235
1236 int lbs_set_radio_control(struct lbs_private *priv)
1237 {
1238         int ret = 0;
1239
1240         lbs_deb_enter(LBS_DEB_CMD);
1241
1242         ret = lbs_prepare_and_send_command(priv,
1243                                     CMD_802_11_RADIO_CONTROL,
1244                                     CMD_ACT_SET,
1245                                     CMD_OPTION_WAITFORRSP, 0, NULL);
1246
1247         lbs_deb_cmd("RADIO_SET: radio %d, preamble %d\n",
1248                priv->radioon, priv->preamble);
1249
1250         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1251         return ret;
1252 }
1253
1254 int lbs_set_mac_packet_filter(struct lbs_private *priv)
1255 {
1256         int ret = 0;
1257
1258         lbs_deb_enter(LBS_DEB_CMD);
1259
1260         /* Send MAC control command to station */
1261         ret = lbs_prepare_and_send_command(priv,
1262                                     CMD_MAC_CONTROL, 0, 0, 0, NULL);
1263
1264         lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
1265         return ret;
1266 }
1267
1268 /**
1269  *  @brief This function prepare the command before send to firmware.
1270  *
1271  *  @param priv         A pointer to struct lbs_private structure
1272  *  @param cmd_no       command number
1273  *  @param cmd_action   command action: GET or SET
1274  *  @param wait_option  wait option: wait response or not
1275  *  @param cmd_oid      cmd oid: treated as sub command
1276  *  @param pdata_buf    A pointer to informaion buffer
1277  *  @return             0 or -1
1278  */
1279 int lbs_prepare_and_send_command(struct lbs_private *priv,
1280                           u16 cmd_no,
1281                           u16 cmd_action,
1282                           u16 wait_option, u32 cmd_oid, void *pdata_buf)
1283 {
1284         int ret = 0;
1285         struct cmd_ctrl_node *cmdnode;
1286         struct cmd_ds_command *cmdptr;
1287         unsigned long flags;
1288
1289         lbs_deb_enter(LBS_DEB_HOST);
1290
1291         if (!priv) {
1292                 lbs_deb_host("PREP_CMD: priv is NULL\n");
1293                 ret = -1;
1294                 goto done;
1295         }
1296
1297         if (priv->surpriseremoved) {
1298                 lbs_deb_host("PREP_CMD: card removed\n");
1299                 ret = -1;
1300                 goto done;
1301         }
1302
1303         cmdnode = lbs_get_cmd_ctrl_node(priv);
1304
1305         if (cmdnode == NULL) {
1306                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
1307
1308                 /* Wake up main thread to execute next command */
1309                 wake_up_interruptible(&priv->waitq);
1310                 ret = -1;
1311                 goto done;
1312         }
1313
1314         lbs_set_cmd_ctrl_node(priv, cmdnode, wait_option, pdata_buf);
1315
1316         cmdptr = (struct cmd_ds_command *)cmdnode->cmdbuf;
1317
1318         lbs_deb_host("PREP_CMD: command 0x%04x\n", cmd_no);
1319
1320         if (!cmdptr) {
1321                 lbs_deb_host("PREP_CMD: cmdptr is NULL\n");
1322                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1323                 ret = -1;
1324                 goto done;
1325         }
1326
1327         /* Set sequence number, command and INT option */
1328         priv->seqnum++;
1329         cmdptr->seqnum = cpu_to_le16(priv->seqnum);
1330
1331         cmdptr->command = cpu_to_le16(cmd_no);
1332         cmdptr->result = 0;
1333
1334         switch (cmd_no) {
1335         case CMD_802_11_PS_MODE:
1336                 ret = lbs_cmd_802_11_ps_mode(priv, cmdptr, cmd_action);
1337                 break;
1338
1339         case CMD_802_11_SCAN:
1340                 ret = lbs_cmd_80211_scan(priv, cmdptr, pdata_buf);
1341                 break;
1342
1343         case CMD_MAC_CONTROL:
1344                 ret = lbs_cmd_mac_control(priv, cmdptr);
1345                 break;
1346
1347         case CMD_802_11_ASSOCIATE:
1348         case CMD_802_11_REASSOCIATE:
1349                 ret = lbs_cmd_80211_associate(priv, cmdptr, pdata_buf);
1350                 break;
1351
1352         case CMD_802_11_DEAUTHENTICATE:
1353                 ret = lbs_cmd_80211_deauthenticate(priv, cmdptr);
1354                 break;
1355
1356         case CMD_802_11_SET_WEP:
1357                 ret = lbs_cmd_802_11_set_wep(priv, cmdptr, cmd_action, pdata_buf);
1358                 break;
1359
1360         case CMD_802_11_AD_HOC_START:
1361                 ret = lbs_cmd_80211_ad_hoc_start(priv, cmdptr, pdata_buf);
1362                 break;
1363         case CMD_CODE_DNLD:
1364                 break;
1365
1366         case CMD_802_11_RESET:
1367                 ret = lbs_cmd_802_11_reset(priv, cmdptr, cmd_action);
1368                 break;
1369
1370         case CMD_802_11_GET_LOG:
1371                 ret = lbs_cmd_802_11_get_log(priv, cmdptr);
1372                 break;
1373
1374         case CMD_802_11_AUTHENTICATE:
1375                 ret = lbs_cmd_80211_authenticate(priv, cmdptr, pdata_buf);
1376                 break;
1377
1378         case CMD_802_11_GET_STAT:
1379                 ret = lbs_cmd_802_11_get_stat(priv, cmdptr);
1380                 break;
1381
1382         case CMD_802_11_SNMP_MIB:
1383                 ret = lbs_cmd_802_11_snmp_mib(priv, cmdptr,
1384                                                cmd_action, cmd_oid, pdata_buf);
1385                 break;
1386
1387         case CMD_MAC_REG_ACCESS:
1388         case CMD_BBP_REG_ACCESS:
1389         case CMD_RF_REG_ACCESS:
1390                 ret = lbs_cmd_reg_access(priv, cmdptr, cmd_action, pdata_buf);
1391                 break;
1392
1393         case CMD_802_11_RF_CHANNEL:
1394                 ret = lbs_cmd_802_11_rf_channel(priv, cmdptr,
1395                                                  cmd_action, pdata_buf);
1396                 break;
1397
1398         case CMD_802_11_RF_TX_POWER:
1399                 ret = lbs_cmd_802_11_rf_tx_power(priv, cmdptr,
1400                                                   cmd_action, pdata_buf);
1401                 break;
1402
1403         case CMD_802_11_RADIO_CONTROL:
1404                 ret = lbs_cmd_802_11_radio_control(priv, cmdptr, cmd_action);
1405                 break;
1406
1407         case CMD_802_11_RATE_ADAPT_RATESET:
1408                 ret = lbs_cmd_802_11_rate_adapt_rateset(priv,
1409                                                          cmdptr, cmd_action);
1410                 break;
1411
1412         case CMD_MAC_MULTICAST_ADR:
1413                 ret = lbs_cmd_mac_multicast_adr(priv, cmdptr, cmd_action);
1414                 break;
1415
1416         case CMD_802_11_MONITOR_MODE:
1417                 ret = lbs_cmd_802_11_monitor_mode(priv, cmdptr,
1418                                           cmd_action, pdata_buf);
1419                 break;
1420
1421         case CMD_802_11_AD_HOC_JOIN:
1422                 ret = lbs_cmd_80211_ad_hoc_join(priv, cmdptr, pdata_buf);
1423                 break;
1424
1425         case CMD_802_11_RSSI:
1426                 ret = lbs_cmd_802_11_rssi(priv, cmdptr);
1427                 break;
1428
1429         case CMD_802_11_AD_HOC_STOP:
1430                 ret = lbs_cmd_80211_ad_hoc_stop(priv, cmdptr);
1431                 break;
1432
1433         case CMD_802_11_ENABLE_RSN:
1434                 ret = lbs_cmd_802_11_enable_rsn(priv, cmdptr, cmd_action,
1435                                 pdata_buf);
1436                 break;
1437
1438         case CMD_802_11_KEY_MATERIAL:
1439                 ret = lbs_cmd_802_11_key_material(priv, cmdptr, cmd_action,
1440                                 cmd_oid, pdata_buf);
1441                 break;
1442
1443         case CMD_802_11_PAIRWISE_TSC:
1444                 break;
1445         case CMD_802_11_GROUP_TSC:
1446                 break;
1447
1448         case CMD_802_11_MAC_ADDRESS:
1449                 ret = lbs_cmd_802_11_mac_address(priv, cmdptr, cmd_action);
1450                 break;
1451
1452         case CMD_802_11_EEPROM_ACCESS:
1453                 ret = lbs_cmd_802_11_eeprom_access(priv, cmdptr,
1454                                                     cmd_action, pdata_buf);
1455                 break;
1456
1457         case CMD_802_11_SET_AFC:
1458         case CMD_802_11_GET_AFC:
1459
1460                 cmdptr->command = cpu_to_le16(cmd_no);
1461                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_afc) +
1462                                            S_DS_GEN);
1463
1464                 memmove(&cmdptr->params.afc,
1465                         pdata_buf, sizeof(struct cmd_ds_802_11_afc));
1466
1467                 ret = 0;
1468                 goto done;
1469
1470         case CMD_802_11D_DOMAIN_INFO:
1471                 ret = lbs_cmd_802_11d_domain_info(priv, cmdptr,
1472                                                    cmd_no, cmd_action);
1473                 break;
1474
1475         case CMD_802_11_SLEEP_PARAMS:
1476                 ret = lbs_cmd_802_11_sleep_params(priv, cmdptr, cmd_action);
1477                 break;
1478         case CMD_802_11_INACTIVITY_TIMEOUT:
1479                 ret = lbs_cmd_802_11_inactivity_timeout(priv, cmdptr,
1480                                                          cmd_action, pdata_buf);
1481                 lbs_set_cmd_ctrl_node(priv, cmdnode, 0, pdata_buf);
1482                 break;
1483
1484         case CMD_802_11_TPC_CFG:
1485                 cmdptr->command = cpu_to_le16(CMD_802_11_TPC_CFG);
1486                 cmdptr->size =
1487                     cpu_to_le16(sizeof(struct cmd_ds_802_11_tpc_cfg) +
1488                                      S_DS_GEN);
1489
1490                 memmove(&cmdptr->params.tpccfg,
1491                         pdata_buf, sizeof(struct cmd_ds_802_11_tpc_cfg));
1492
1493                 ret = 0;
1494                 break;
1495         case CMD_802_11_LED_GPIO_CTRL:
1496                 {
1497                         struct mrvlietypes_ledgpio *gpio =
1498                             (struct mrvlietypes_ledgpio*)
1499                             cmdptr->params.ledgpio.data;
1500
1501                         memmove(&cmdptr->params.ledgpio,
1502                                 pdata_buf,
1503                                 sizeof(struct cmd_ds_802_11_led_ctrl));
1504
1505                         cmdptr->command =
1506                             cpu_to_le16(CMD_802_11_LED_GPIO_CTRL);
1507
1508 #define ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN 8
1509                         cmdptr->size =
1510                             cpu_to_le16(le16_to_cpu(gpio->header.len)
1511                                 + S_DS_GEN
1512                                 + ACTION_NUMLED_TLVTYPE_LEN_FIELDS_LEN);
1513                         gpio->header.len = gpio->header.len;
1514
1515                         ret = 0;
1516                         break;
1517                 }
1518         case CMD_802_11_SUBSCRIBE_EVENT:
1519                 lbs_cmd_802_11_subscribe_event(priv, cmdptr,
1520                         cmd_action, pdata_buf);
1521                 break;
1522         case CMD_802_11_PWR_CFG:
1523                 cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
1524                 cmdptr->size =
1525                     cpu_to_le16(sizeof(struct cmd_ds_802_11_pwr_cfg) +
1526                                      S_DS_GEN);
1527                 memmove(&cmdptr->params.pwrcfg, pdata_buf,
1528                         sizeof(struct cmd_ds_802_11_pwr_cfg));
1529
1530                 ret = 0;
1531                 break;
1532         case CMD_BT_ACCESS:
1533                 ret = lbs_cmd_bt_access(priv, cmdptr, cmd_action, pdata_buf);
1534                 break;
1535
1536         case CMD_FWT_ACCESS:
1537                 ret = lbs_cmd_fwt_access(priv, cmdptr, cmd_action, pdata_buf);
1538                 break;
1539
1540         case CMD_GET_TSF:
1541                 cmdptr->command = cpu_to_le16(CMD_GET_TSF);
1542                 cmdptr->size = cpu_to_le16(sizeof(struct cmd_ds_get_tsf) +
1543                                            S_DS_GEN);
1544                 ret = 0;
1545                 break;
1546         case CMD_802_11_BEACON_CTRL:
1547                 ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
1548                 break;
1549         default:
1550                 lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
1551                 ret = -1;
1552                 break;
1553         }
1554
1555         /* return error, since the command preparation failed */
1556         if (ret != 0) {
1557                 lbs_deb_host("PREP_CMD: command preparation failed\n");
1558                 lbs_cleanup_and_insert_cmd(priv, cmdnode);
1559                 ret = -1;
1560                 goto done;
1561         }
1562
1563         cmdnode->cmdwaitqwoken = 0;
1564
1565         lbs_queue_cmd(priv, cmdnode, 1);
1566         wake_up_interruptible(&priv->waitq);
1567
1568         if (wait_option & CMD_OPTION_WAITFORRSP) {
1569                 lbs_deb_host("PREP_CMD: wait for response\n");
1570                 might_sleep();
1571                 wait_event_interruptible(cmdnode->cmdwait_q,
1572                                          cmdnode->cmdwaitqwoken);
1573         }
1574
1575         spin_lock_irqsave(&priv->driver_lock, flags);
1576         if (priv->cur_cmd_retcode) {
1577                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
1578                        priv->cur_cmd_retcode);
1579                 priv->cur_cmd_retcode = 0;
1580                 ret = -1;
1581         }
1582         spin_unlock_irqrestore(&priv->driver_lock, flags);
1583
1584 done:
1585         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1586         return ret;
1587 }
1588 EXPORT_SYMBOL_GPL(lbs_prepare_and_send_command);
1589
1590 /**
1591  *  @brief This function allocates the command buffer and link
1592  *  it to command free queue.
1593  *
1594  *  @param priv         A pointer to struct lbs_private structure
1595  *  @return             0 or -1
1596  */
1597 int lbs_allocate_cmd_buffer(struct lbs_private *priv)
1598 {
1599         int ret = 0;
1600         u32 bufsize;
1601         u32 i;
1602         struct cmd_ctrl_node *cmdarray;
1603
1604         lbs_deb_enter(LBS_DEB_HOST);
1605
1606         /* Allocate and initialize the command array */
1607         bufsize = sizeof(struct cmd_ctrl_node) * LBS_NUM_CMD_BUFFERS;
1608         if (!(cmdarray = kzalloc(bufsize, GFP_KERNEL))) {
1609                 lbs_deb_host("ALLOC_CMD_BUF: tempcmd_array is NULL\n");
1610                 ret = -1;
1611                 goto done;
1612         }
1613         priv->cmd_array = cmdarray;
1614
1615         /* Allocate and initialize each command buffer in the command array */
1616         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1617                 cmdarray[i].cmdbuf = kzalloc(LBS_CMD_BUFFER_SIZE, GFP_KERNEL);
1618                 if (!cmdarray[i].cmdbuf) {
1619                         lbs_deb_host("ALLOC_CMD_BUF: ptempvirtualaddr is NULL\n");
1620                         ret = -1;
1621                         goto done;
1622                 }
1623         }
1624
1625         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1626                 init_waitqueue_head(&cmdarray[i].cmdwait_q);
1627                 lbs_cleanup_and_insert_cmd(priv, &cmdarray[i]);
1628         }
1629         ret = 0;
1630
1631 done:
1632         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1633         return ret;
1634 }
1635
1636 /**
1637  *  @brief This function frees the command buffer.
1638  *
1639  *  @param priv         A pointer to struct lbs_private structure
1640  *  @return             0 or -1
1641  */
1642 int lbs_free_cmd_buffer(struct lbs_private *priv)
1643 {
1644         struct cmd_ctrl_node *cmdarray;
1645         unsigned int i;
1646
1647         lbs_deb_enter(LBS_DEB_HOST);
1648
1649         /* need to check if cmd array is allocated or not */
1650         if (priv->cmd_array == NULL) {
1651                 lbs_deb_host("FREE_CMD_BUF: cmd_array is NULL\n");
1652                 goto done;
1653         }
1654
1655         cmdarray = priv->cmd_array;
1656
1657         /* Release shared memory buffers */
1658         for (i = 0; i < LBS_NUM_CMD_BUFFERS; i++) {
1659                 if (cmdarray[i].cmdbuf) {
1660                         kfree(cmdarray[i].cmdbuf);
1661                         cmdarray[i].cmdbuf = NULL;
1662                 }
1663         }
1664
1665         /* Release cmd_ctrl_node */
1666         if (priv->cmd_array) {
1667                 kfree(priv->cmd_array);
1668                 priv->cmd_array = NULL;
1669         }
1670
1671 done:
1672         lbs_deb_leave(LBS_DEB_HOST);
1673         return 0;
1674 }
1675
1676 /**
1677  *  @brief This function gets a free command node if available in
1678  *  command free queue.
1679  *
1680  *  @param priv         A pointer to struct lbs_private structure
1681  *  @return cmd_ctrl_node A pointer to cmd_ctrl_node structure or NULL
1682  */
1683 struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv)
1684 {
1685         struct cmd_ctrl_node *tempnode;
1686         unsigned long flags;
1687
1688         lbs_deb_enter(LBS_DEB_HOST);
1689
1690         if (!priv)
1691                 return NULL;
1692
1693         spin_lock_irqsave(&priv->driver_lock, flags);
1694
1695         if (!list_empty(&priv->cmdfreeq)) {
1696                 tempnode = list_first_entry(&priv->cmdfreeq,
1697                                             struct cmd_ctrl_node, list);
1698                 list_del(&tempnode->list);
1699         } else {
1700                 lbs_deb_host("GET_CMD_NODE: cmd_ctrl_node is not available\n");
1701                 tempnode = NULL;
1702         }
1703
1704         spin_unlock_irqrestore(&priv->driver_lock, flags);
1705
1706         if (tempnode)
1707                 cleanup_cmdnode(tempnode);
1708
1709         lbs_deb_leave(LBS_DEB_HOST);
1710         return tempnode;
1711 }
1712
1713 /**
1714  *  @brief This function cleans command node.
1715  *
1716  *  @param ptempnode    A pointer to cmdCtrlNode structure
1717  *  @return             n/a
1718  */
1719 static void cleanup_cmdnode(struct cmd_ctrl_node *cmdnode)
1720 {
1721         lbs_deb_enter(LBS_DEB_HOST);
1722
1723         if (!cmdnode)
1724                 return;
1725         cmdnode->cmdwaitqwoken = 1;
1726         wake_up_interruptible(&cmdnode->cmdwait_q);
1727         cmdnode->wait_option = 0;
1728         cmdnode->pdata_buf = NULL;
1729         cmdnode->callback = NULL;
1730         cmdnode->callback_arg = 0;
1731
1732         if (cmdnode->cmdbuf != NULL)
1733                 memset(cmdnode->cmdbuf, 0, LBS_CMD_BUFFER_SIZE);
1734
1735         lbs_deb_leave(LBS_DEB_HOST);
1736 }
1737
1738 /**
1739  *  @brief This function initializes the command node.
1740  *
1741  *  @param priv         A pointer to struct lbs_private structure
1742  *  @param ptempnode    A pointer to cmd_ctrl_node structure
1743  *  @param wait_option  wait option: wait response or not
1744  *  @param pdata_buf    A pointer to informaion buffer
1745  *  @return             0 or -1
1746  */
1747 void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
1748                     struct cmd_ctrl_node *ptempnode,
1749                     u16 wait_option, void *pdata_buf)
1750 {
1751         lbs_deb_enter(LBS_DEB_HOST);
1752
1753         if (!ptempnode)
1754                 return;
1755
1756         ptempnode->wait_option = wait_option;
1757         ptempnode->pdata_buf = pdata_buf;
1758         ptempnode->callback = NULL;
1759         ptempnode->callback_arg = 0;
1760
1761         lbs_deb_leave(LBS_DEB_HOST);
1762 }
1763
1764 /**
1765  *  @brief This function executes next command in command
1766  *  pending queue. It will put fimware back to PS mode
1767  *  if applicable.
1768  *
1769  *  @param priv     A pointer to struct lbs_private structure
1770  *  @return        0 or -1
1771  */
1772 int lbs_execute_next_command(struct lbs_private *priv)
1773 {
1774         struct cmd_ctrl_node *cmdnode = NULL;
1775         struct cmd_header *cmd;
1776         unsigned long flags;
1777         int ret = 0;
1778
1779         // Debug group is LBS_DEB_THREAD and not LBS_DEB_HOST, because the
1780         // only caller to us is lbs_thread() and we get even when a
1781         // data packet is received
1782         lbs_deb_enter(LBS_DEB_THREAD);
1783
1784         spin_lock_irqsave(&priv->driver_lock, flags);
1785
1786         if (priv->cur_cmd) {
1787                 lbs_pr_alert( "EXEC_NEXT_CMD: already processing command!\n");
1788                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1789                 ret = -1;
1790                 goto done;
1791         }
1792
1793         if (!list_empty(&priv->cmdpendingq)) {
1794                 cmdnode = list_first_entry(&priv->cmdpendingq,
1795                                            struct cmd_ctrl_node, list);
1796         }
1797
1798         spin_unlock_irqrestore(&priv->driver_lock, flags);
1799
1800         if (cmdnode) {
1801                 cmd = cmdnode->cmdbuf;
1802
1803                 if (is_command_allowed_in_ps(le16_to_cpu(cmd->command))) {
1804                         if ((priv->psstate == PS_STATE_SLEEP) ||
1805                             (priv->psstate == PS_STATE_PRE_SLEEP)) {
1806                                 lbs_deb_host(
1807                                        "EXEC_NEXT_CMD: cannot send cmd 0x%04x in psstate %d\n",
1808                                        le16_to_cpu(cmd->command),
1809                                        priv->psstate);
1810                                 ret = -1;
1811                                 goto done;
1812                         }
1813                         lbs_deb_host("EXEC_NEXT_CMD: OK to send command "
1814                                      "0x%04x in psstate %d\n",
1815                                      le16_to_cpu(cmd->command), priv->psstate);
1816                 } else if (priv->psstate != PS_STATE_FULL_POWER) {
1817                         /*
1818                          * 1. Non-PS command:
1819                          * Queue it. set needtowakeup to TRUE if current state
1820                          * is SLEEP, otherwise call lbs_ps_wakeup to send Exit_PS.
1821                          * 2. PS command but not Exit_PS:
1822                          * Ignore it.
1823                          * 3. PS command Exit_PS:
1824                          * Set needtowakeup to TRUE if current state is SLEEP,
1825                          * otherwise send this command down to firmware
1826                          * immediately.
1827                          */
1828                         if (cmd->command != cpu_to_le16(CMD_802_11_PS_MODE)) {
1829                                 /*  Prepare to send Exit PS,
1830                                  *  this non PS command will be sent later */
1831                                 if ((priv->psstate == PS_STATE_SLEEP)
1832                                     || (priv->psstate == PS_STATE_PRE_SLEEP)
1833                                     ) {
1834                                         /* w/ new scheme, it will not reach here.
1835                                            since it is blocked in main_thread. */
1836                                         priv->needtowakeup = 1;
1837                                 } else
1838                                         lbs_ps_wakeup(priv, 0);
1839
1840                                 ret = 0;
1841                                 goto done;
1842                         } else {
1843                                 /*
1844                                  * PS command. Ignore it if it is not Exit_PS.
1845                                  * otherwise send it down immediately.
1846                                  */
1847                                 struct cmd_ds_802_11_ps_mode *psm = (void *)cmd;
1848
1849                                 lbs_deb_host(
1850                                        "EXEC_NEXT_CMD: PS cmd, action 0x%02x\n",
1851                                        psm->action);
1852                                 if (psm->action !=
1853                                     cpu_to_le16(CMD_SUBCMD_EXIT_PS)) {
1854                                         lbs_deb_host(
1855                                                "EXEC_NEXT_CMD: ignore ENTER_PS cmd\n");
1856                                         list_del(&cmdnode->list);
1857                                         lbs_cleanup_and_insert_cmd(priv, cmdnode);
1858
1859                                         ret = 0;
1860                                         goto done;
1861                                 }
1862
1863                                 if ((priv->psstate == PS_STATE_SLEEP) ||
1864                                     (priv->psstate == PS_STATE_PRE_SLEEP)) {
1865                                         lbs_deb_host(
1866                                                "EXEC_NEXT_CMD: ignore EXIT_PS cmd in sleep\n");
1867                                         list_del(&cmdnode->list);
1868                                         lbs_cleanup_and_insert_cmd(priv, cmdnode);
1869                                         priv->needtowakeup = 1;
1870
1871                                         ret = 0;
1872                                         goto done;
1873                                 }
1874
1875                                 lbs_deb_host(
1876                                        "EXEC_NEXT_CMD: sending EXIT_PS\n");
1877                         }
1878                 }
1879                 list_del(&cmdnode->list);
1880                 lbs_deb_host("EXEC_NEXT_CMD: sending command 0x%04x\n",
1881                             le16_to_cpu(cmd->command));
1882                 DownloadcommandToStation(priv, cmdnode);
1883         } else {
1884                 /*
1885                  * check if in power save mode, if yes, put the device back
1886                  * to PS mode
1887                  */
1888                 if ((priv->psmode != LBS802_11POWERMODECAM) &&
1889                     (priv->psstate == PS_STATE_FULL_POWER) &&
1890                     ((priv->connect_status == LBS_CONNECTED) ||
1891                     (priv->mesh_connect_status == LBS_CONNECTED))) {
1892                         if (priv->secinfo.WPAenabled ||
1893                             priv->secinfo.WPA2enabled) {
1894                                 /* check for valid WPA group keys */
1895                                 if (priv->wpa_mcast_key.len ||
1896                                     priv->wpa_unicast_key.len) {
1897                                         lbs_deb_host(
1898                                                "EXEC_NEXT_CMD: WPA enabled and GTK_SET"
1899                                                " go back to PS_SLEEP");
1900                                         lbs_ps_sleep(priv, 0);
1901                                 }
1902                         } else {
1903                                 lbs_deb_host(
1904                                        "EXEC_NEXT_CMD: cmdpendingq empty, "
1905                                        "go back to PS_SLEEP");
1906                                 lbs_ps_sleep(priv, 0);
1907                         }
1908                 }
1909         }
1910
1911         ret = 0;
1912 done:
1913         lbs_deb_leave(LBS_DEB_THREAD);
1914         return ret;
1915 }
1916
1917 void lbs_send_iwevcustom_event(struct lbs_private *priv, s8 *str)
1918 {
1919         union iwreq_data iwrq;
1920         u8 buf[50];
1921
1922         lbs_deb_enter(LBS_DEB_WEXT);
1923
1924         memset(&iwrq, 0, sizeof(union iwreq_data));
1925         memset(buf, 0, sizeof(buf));
1926
1927         snprintf(buf, sizeof(buf) - 1, "%s", str);
1928
1929         iwrq.data.length = strlen(buf) + 1 + IW_EV_LCP_LEN;
1930
1931         /* Send Event to upper layer */
1932         lbs_deb_wext("event indication string %s\n", (char *)buf);
1933         lbs_deb_wext("event indication length %d\n", iwrq.data.length);
1934         lbs_deb_wext("sending wireless event IWEVCUSTOM for %s\n", str);
1935
1936         wireless_send_event(priv->dev, IWEVCUSTOM, &iwrq, buf);
1937
1938         lbs_deb_leave(LBS_DEB_WEXT);
1939 }
1940
1941 static int sendconfirmsleep(struct lbs_private *priv, u8 *cmdptr, u16 size)
1942 {
1943         unsigned long flags;
1944         int ret = 0;
1945
1946         lbs_deb_enter(LBS_DEB_HOST);
1947
1948         lbs_deb_host("SEND_SLEEPC_CMD: before download, cmd size %d\n",
1949                size);
1950
1951         lbs_deb_hex(LBS_DEB_HOST, "sleep confirm command", cmdptr, size);
1952
1953         ret = priv->hw_host_to_card(priv, MVMS_CMD, cmdptr, size);
1954         priv->dnld_sent = DNLD_RES_RECEIVED;
1955
1956         spin_lock_irqsave(&priv->driver_lock, flags);
1957         if (priv->intcounter || priv->currenttxskb)
1958                 lbs_deb_host("SEND_SLEEPC_CMD: intcounter %d, currenttxskb %p\n",
1959                        priv->intcounter, priv->currenttxskb);
1960         spin_unlock_irqrestore(&priv->driver_lock, flags);
1961
1962         if (ret) {
1963                 lbs_pr_alert(
1964                        "SEND_SLEEPC_CMD: Host to Card failed for Confirm Sleep\n");
1965         } else {
1966                 spin_lock_irqsave(&priv->driver_lock, flags);
1967                 if (!priv->intcounter) {
1968                         priv->psstate = PS_STATE_SLEEP;
1969                 } else {
1970                         lbs_deb_host("SEND_SLEEPC_CMD: after sent, intcounter %d\n",
1971                                priv->intcounter);
1972                 }
1973                 spin_unlock_irqrestore(&priv->driver_lock, flags);
1974
1975                 lbs_deb_host("SEND_SLEEPC_CMD: sent confirm sleep\n");
1976         }
1977
1978         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
1979         return ret;
1980 }
1981
1982 void lbs_ps_sleep(struct lbs_private *priv, int wait_option)
1983 {
1984         lbs_deb_enter(LBS_DEB_HOST);
1985
1986         /*
1987          * PS is currently supported only in Infrastructure mode
1988          * Remove this check if it is to be supported in IBSS mode also
1989          */
1990
1991         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
1992                               CMD_SUBCMD_ENTER_PS, wait_option, 0, NULL);
1993
1994         lbs_deb_leave(LBS_DEB_HOST);
1995 }
1996
1997 /**
1998  *  @brief This function sends Exit_PS command to firmware.
1999  *
2000  *  @param priv         A pointer to struct lbs_private structure
2001  *  @param wait_option  wait response or not
2002  *  @return             n/a
2003  */
2004 void lbs_ps_wakeup(struct lbs_private *priv, int wait_option)
2005 {
2006         __le32 Localpsmode;
2007
2008         lbs_deb_enter(LBS_DEB_HOST);
2009
2010         Localpsmode = cpu_to_le32(LBS802_11POWERMODECAM);
2011
2012         lbs_prepare_and_send_command(priv, CMD_802_11_PS_MODE,
2013                               CMD_SUBCMD_EXIT_PS,
2014                               wait_option, 0, &Localpsmode);
2015
2016         lbs_deb_leave(LBS_DEB_HOST);
2017 }
2018
2019 /**
2020  *  @brief This function checks condition and prepares to
2021  *  send sleep confirm command to firmware if ok.
2022  *
2023  *  @param priv         A pointer to struct lbs_private structure
2024  *  @param psmode       Power Saving mode
2025  *  @return             n/a
2026  */
2027 void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode)
2028 {
2029         unsigned long flags =0;
2030         u8 allowed = 1;
2031
2032         lbs_deb_enter(LBS_DEB_HOST);
2033
2034         if (priv->dnld_sent) {
2035                 allowed = 0;
2036                 lbs_deb_host("dnld_sent was set");
2037         }
2038
2039         spin_lock_irqsave(&priv->driver_lock, flags);
2040         if (priv->cur_cmd) {
2041                 allowed = 0;
2042                 lbs_deb_host("cur_cmd was set");
2043         }
2044         if (priv->intcounter > 0) {
2045                 allowed = 0;
2046                 lbs_deb_host("intcounter %d", priv->intcounter);
2047         }
2048         spin_unlock_irqrestore(&priv->driver_lock, flags);
2049
2050         if (allowed) {
2051                 lbs_deb_host("sending lbs_ps_confirm_sleep\n");
2052                 sendconfirmsleep(priv, (u8 *) & priv->lbs_ps_confirm_sleep,
2053                                  sizeof(struct PS_CMD_ConfirmSleep));
2054         } else {
2055                 lbs_deb_host("sleep confirm has been delayed\n");
2056         }
2057
2058         lbs_deb_leave(LBS_DEB_HOST);
2059 }
2060
2061
2062 /**
2063  *  @brief Simple callback that copies response back into command
2064  *
2065  *  @param priv         A pointer to struct lbs_private structure
2066  *  @param extra        A pointer to the original command structure for which
2067  *                      'resp' is a response
2068  *  @param resp         A pointer to the command response
2069  *
2070  *  @return             0 on success, error on failure
2071  */
2072 int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
2073                      struct cmd_header *resp)
2074 {
2075         struct cmd_header *buf = (void *)extra;
2076         uint16_t copy_len;
2077
2078         lbs_deb_enter(LBS_DEB_CMD);
2079
2080         copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size));
2081         lbs_deb_cmd("Copying back %u bytes; command response was %u bytes, "
2082                     "copy back buffer was %u bytes\n", copy_len,
2083                     le16_to_cpu(resp->size), le16_to_cpu(buf->size));
2084         memcpy(buf, resp, copy_len);
2085
2086         lbs_deb_leave(LBS_DEB_CMD);
2087         return 0;
2088 }
2089
2090 /**
2091  *  @brief Simple way to call firmware functions
2092  *
2093  *  @param priv         A pointer to struct lbs_private structure
2094  *  @param psmode       one of the many CMD_802_11_xxxx
2095  *  @param cmd          pointer to the parameters structure for above command
2096  *                      (this should not include the command, size, sequence
2097  *                      and result fields from struct cmd_ds_gen)
2098  *  @param cmd_size     size structure pointed to by cmd
2099  *  @param rsp          pointer to an area where the result should be placed
2100  *  @param rsp_size     pointer to the size of the rsp area. If the firmware
2101  *                      returns fewer bytes, then this *rsp_size will be
2102  *                      changed to the actual size.
2103  *  @return             -1 in case of a higher level error, otherwise
2104  *                      the result code from the firmware
2105  */
2106 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
2107               struct cmd_header *in_cmd, int in_cmd_size,
2108               int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
2109               unsigned long callback_arg)
2110 {
2111         struct cmd_ctrl_node *cmdnode;
2112         unsigned long flags;
2113         int ret = 0;
2114
2115         lbs_deb_enter(LBS_DEB_HOST);
2116
2117         if (!priv) {
2118                 lbs_deb_host("PREP_CMD: priv is NULL\n");
2119                 ret = -1;
2120                 goto done;
2121         }
2122
2123         if (priv->surpriseremoved) {
2124                 lbs_deb_host("PREP_CMD: card removed\n");
2125                 ret = -1;
2126                 goto done;
2127         }
2128
2129         cmdnode = lbs_get_cmd_ctrl_node(priv);
2130         if (cmdnode == NULL) {
2131                 lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
2132
2133                 /* Wake up main thread to execute next command */
2134                 wake_up_interruptible(&priv->waitq);
2135                 ret = -1;
2136                 goto done;
2137         }
2138
2139         cmdnode->wait_option = CMD_OPTION_WAITFORRSP;
2140         cmdnode->callback = callback;
2141         cmdnode->callback_arg = callback_arg;
2142
2143         /* Copy the incoming command to the buffer */
2144         memcpy(cmdnode->cmdbuf, in_cmd, in_cmd_size);
2145
2146         /* Set sequence number, clean result, move to buffer */
2147         priv->seqnum++;
2148         cmdnode->cmdbuf->command = cpu_to_le16(command);
2149         cmdnode->cmdbuf->size    = cpu_to_le16(in_cmd_size);
2150         cmdnode->cmdbuf->seqnum  = cpu_to_le16(priv->seqnum);
2151         cmdnode->cmdbuf->result  = 0;
2152
2153         lbs_deb_host("PREP_CMD: command 0x%04x\n", command);
2154
2155         /* here was the big old switch() statement, which is now obsolete,
2156          * because the caller of lbs_cmd() sets up all of *cmd for us. */
2157
2158         cmdnode->cmdwaitqwoken = 0;
2159         lbs_queue_cmd(priv, cmdnode, 1);
2160         wake_up_interruptible(&priv->waitq);
2161
2162         might_sleep();
2163         wait_event_interruptible(cmdnode->cmdwait_q, cmdnode->cmdwaitqwoken);
2164
2165         spin_lock_irqsave(&priv->driver_lock, flags);
2166         if (priv->cur_cmd_retcode) {
2167                 lbs_deb_host("PREP_CMD: command failed with return code %d\n",
2168                        priv->cur_cmd_retcode);
2169                 priv->cur_cmd_retcode = 0;
2170                 ret = -1;
2171         }
2172         spin_unlock_irqrestore(&priv->driver_lock, flags);
2173
2174 done:
2175         lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
2176         return ret;
2177 }
2178 EXPORT_SYMBOL_GPL(__lbs_cmd);
2179
2180