wl1271: mask aid bits 14 and 15 in ps-poll template
[linux-2.6.git] / drivers / net / wireless / wl12xx / wl1271_cmd.c
1 /*
2  * This file is part of wl1271
3  *
4  * Copyright (C) 2009 Nokia Corporation
5  *
6  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * version 2 as published by the Free Software Foundation.
11  *
12  * This program is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20  * 02110-1301 USA
21  *
22  */
23
24 #include <linux/module.h>
25 #include <linux/platform_device.h>
26 #include <linux/crc7.h>
27 #include <linux/spi/spi.h>
28 #include <linux/etherdevice.h>
29
30 #include "wl1271.h"
31 #include "wl1271_reg.h"
32 #include "wl1271_spi.h"
33 #include "wl1271_acx.h"
34 #include "wl12xx_80211.h"
35 #include "wl1271_cmd.h"
36
37 /*
38  * send command to firmware
39  *
40  * @wl: wl struct
41  * @id: command id
42  * @buf: buffer containing the command, must work with dma
43  * @len: length of the buffer
44  */
45 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len)
46 {
47         struct wl1271_cmd_header *cmd;
48         unsigned long timeout;
49         u32 intr;
50         int ret = 0;
51
52         cmd = buf;
53         cmd->id = id;
54         cmd->status = 0;
55
56         WARN_ON(len % 4 != 0);
57
58         wl1271_spi_mem_write(wl, wl->cmd_box_addr, buf, len);
59
60         wl1271_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
61
62         timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
63
64         intr = wl1271_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
65         while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
66                 if (time_after(jiffies, timeout)) {
67                         wl1271_error("command complete timeout");
68                         ret = -ETIMEDOUT;
69                         goto out;
70                 }
71
72                 msleep(1);
73
74                 intr = wl1271_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
75         }
76
77         wl1271_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
78                            WL1271_ACX_INTR_CMD_COMPLETE);
79
80 out:
81         return ret;
82 }
83
84 int wl1271_cmd_cal_channel_tune(struct wl1271 *wl)
85 {
86         struct wl1271_cmd_cal_channel_tune *cmd;
87         int ret = 0;
88
89         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
90         if (!cmd)
91                 return -ENOMEM;
92
93         cmd->test.id = TEST_CMD_CHANNEL_TUNE;
94
95         cmd->band = WL1271_CHANNEL_TUNE_BAND_2_4;
96         /* set up any channel, 7 is in the middle of the range */
97         cmd->channel = 7;
98
99         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
100         if (ret < 0)
101                 wl1271_warning("TEST_CMD_CHANNEL_TUNE failed");
102
103         kfree(cmd);
104         return ret;
105 }
106
107 int wl1271_cmd_cal_update_ref_point(struct wl1271 *wl)
108 {
109         struct wl1271_cmd_cal_update_ref_point *cmd;
110         int ret = 0;
111
112         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
113         if (!cmd)
114                 return -ENOMEM;
115
116         cmd->test.id = TEST_CMD_UPDATE_PD_REFERENCE_POINT;
117
118         /* FIXME: still waiting for the correct values */
119         cmd->ref_power    = 0;
120         cmd->ref_detector = 0;
121
122         cmd->sub_band     = WL1271_PD_REFERENCE_POINT_BAND_B_G;
123
124         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
125         if (ret < 0)
126                 wl1271_warning("TEST_CMD_UPDATE_PD_REFERENCE_POINT failed");
127
128         kfree(cmd);
129         return ret;
130 }
131
132 int wl1271_cmd_cal_p2g(struct wl1271 *wl)
133 {
134         struct wl1271_cmd_cal_p2g *cmd;
135         int ret = 0;
136
137         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
138         if (!cmd)
139                 return -ENOMEM;
140
141         cmd->test.id = TEST_CMD_P2G_CAL;
142
143         cmd->sub_band_mask = WL1271_CAL_P2G_BAND_B_G;
144
145         ret = wl1271_cmd_test(wl, cmd, sizeof(*cmd), 0);
146         if (ret < 0)
147                 wl1271_warning("TEST_CMD_P2G_CAL failed");
148
149         kfree(cmd);
150         return ret;
151 }
152
153 int wl1271_cmd_cal(struct wl1271 *wl)
154 {
155         /*
156          * FIXME: we must make sure that we're not sleeping when calibration
157          * is done
158          */
159         int ret;
160
161         wl1271_notice("performing tx calibration");
162
163         ret = wl1271_cmd_cal_channel_tune(wl);
164         if (ret < 0)
165                 return ret;
166
167         ret = wl1271_cmd_cal_update_ref_point(wl);
168         if (ret < 0)
169                 return ret;
170
171         ret = wl1271_cmd_cal_p2g(wl);
172         if (ret < 0)
173                 return ret;
174
175         return ret;
176 }
177
178 int wl1271_cmd_join(struct wl1271 *wl, u8 bss_type, u8 dtim_interval,
179                     u16 beacon_interval, u8 wait)
180 {
181         static bool do_cal = true;
182         unsigned long timeout;
183         struct wl1271_cmd_join *join;
184         int ret, i;
185         u8 *bssid;
186
187         /* FIXME: remove when we get calibration from the factory */
188         if (do_cal) {
189                 ret = wl1271_cmd_cal(wl);
190                 if (ret < 0)
191                         wl1271_warning("couldn't calibrate");
192                 else
193                         do_cal = false;
194         }
195
196
197         join = kzalloc(sizeof(*join), GFP_KERNEL);
198         if (!join) {
199                 ret = -ENOMEM;
200                 goto out;
201         }
202
203         wl1271_debug(DEBUG_CMD, "cmd join");
204
205         /* Reverse order BSSID */
206         bssid = (u8 *) &join->bssid_lsb;
207         for (i = 0; i < ETH_ALEN; i++)
208                 bssid[i] = wl->bssid[ETH_ALEN - i - 1];
209
210         join->rx_config_options = wl->rx_config;
211         join->rx_filter_options = wl->rx_filter;
212
213         join->basic_rate_set = RATE_MASK_1MBPS | RATE_MASK_2MBPS |
214                 RATE_MASK_5_5MBPS | RATE_MASK_11MBPS;
215
216         join->beacon_interval = beacon_interval;
217         join->dtim_interval = dtim_interval;
218         join->bss_type = bss_type;
219         join->channel = wl->channel;
220         join->ssid_len = wl->ssid_len;
221         memcpy(join->ssid, wl->ssid, wl->ssid_len);
222         join->ctrl = WL1271_JOIN_CMD_CTRL_TX_FLUSH;
223
224         /* increment the session counter */
225         wl->session_counter++;
226         if (wl->session_counter >= SESSION_COUNTER_MAX)
227                 wl->session_counter = 0;
228
229         join->ctrl |= wl->session_counter << WL1271_JOIN_CMD_TX_SESSION_OFFSET;
230
231         /* reset TX security counters */
232         wl->tx_security_last_seq = 0;
233         wl->tx_security_seq_16 = 0;
234         wl->tx_security_seq_32 = 0;
235
236         ret = wl1271_cmd_send(wl, CMD_START_JOIN, join, sizeof(*join));
237         if (ret < 0) {
238                 wl1271_error("failed to initiate cmd join");
239                 goto out_free;
240         }
241
242         timeout = msecs_to_jiffies(JOIN_TIMEOUT);
243
244         /*
245          * ugly hack: we should wait for JOIN_EVENT_COMPLETE_ID but to
246          * simplify locking we just sleep instead, for now
247          */
248         if (wait)
249                 msleep(10);
250
251 out_free:
252         kfree(join);
253
254 out:
255         return ret;
256 }
257
258 /**
259  * send test command to firmware
260  *
261  * @wl: wl struct
262  * @buf: buffer containing the command, with all headers, must work with dma
263  * @len: length of the buffer
264  * @answer: is answer needed
265  */
266 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
267 {
268         int ret;
269
270         wl1271_debug(DEBUG_CMD, "cmd test");
271
272         ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len);
273
274         if (ret < 0) {
275                 wl1271_warning("TEST command failed");
276                 return ret;
277         }
278
279         if (answer) {
280                 struct wl1271_command *cmd_answer;
281
282                 /*
283                  * The test command got in, we can read the answer.
284                  * The answer would be a wl1271_command, where the
285                  * parameter array contains the actual answer.
286                  */
287                 wl1271_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
288
289                 cmd_answer = buf;
290
291                 if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
292                         wl1271_error("TEST command answer error: %d",
293                                      cmd_answer->header.status);
294         }
295
296         return 0;
297 }
298
299 /**
300  * read acx from firmware
301  *
302  * @wl: wl struct
303  * @id: acx id
304  * @buf: buffer for the response, including all headers, must work with dma
305  * @len: lenght of buf
306  */
307 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
308 {
309         struct acx_header *acx = buf;
310         int ret;
311
312         wl1271_debug(DEBUG_CMD, "cmd interrogate");
313
314         acx->id = id;
315
316         /* payload length, does not include any headers */
317         acx->len = len - sizeof(*acx);
318
319         ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx));
320         if (ret < 0) {
321                 wl1271_error("INTERROGATE command failed");
322                 goto out;
323         }
324
325         /* the interrogate command got in, we can read the answer */
326         wl1271_spi_mem_read(wl, wl->cmd_box_addr, buf, len);
327
328         acx = buf;
329         if (acx->cmd.status != CMD_STATUS_SUCCESS)
330                 wl1271_error("INTERROGATE command error: %d",
331                              acx->cmd.status);
332
333 out:
334         return ret;
335 }
336
337 /**
338  * write acx value to firmware
339  *
340  * @wl: wl struct
341  * @id: acx id
342  * @buf: buffer containing acx, including all headers, must work with dma
343  * @len: length of buf
344  */
345 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
346 {
347         struct acx_header *acx = buf;
348         int ret;
349
350         wl1271_debug(DEBUG_CMD, "cmd configure");
351
352         acx->id = id;
353
354         /* payload length, does not include any headers */
355         acx->len = len - sizeof(*acx);
356
357         ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len);
358         if (ret < 0) {
359                 wl1271_warning("CONFIGURE command NOK");
360                 return ret;
361         }
362
363         return 0;
364 }
365
366 int wl1271_cmd_data_path(struct wl1271 *wl, u8 channel, bool enable)
367 {
368         struct cmd_enabledisable_path *cmd;
369         int ret;
370         u16 cmd_rx, cmd_tx;
371
372         wl1271_debug(DEBUG_CMD, "cmd data path");
373
374         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
375         if (!cmd) {
376                 ret = -ENOMEM;
377                 goto out;
378         }
379
380         cmd->channel = channel;
381
382         if (enable) {
383                 cmd_rx = CMD_ENABLE_RX;
384                 cmd_tx = CMD_ENABLE_TX;
385         } else {
386                 cmd_rx = CMD_DISABLE_RX;
387                 cmd_tx = CMD_DISABLE_TX;
388         }
389
390         ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd));
391         if (ret < 0) {
392                 wl1271_error("rx %s cmd for channel %d failed",
393                              enable ? "start" : "stop", channel);
394                 goto out;
395         }
396
397         wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
398                      enable ? "start" : "stop", channel);
399
400         ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd));
401         if (ret < 0) {
402                 wl1271_error("tx %s cmd for channel %d failed",
403                              enable ? "start" : "stop", channel);
404                 return ret;
405         }
406
407         wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
408                      enable ? "start" : "stop", channel);
409
410 out:
411         kfree(cmd);
412         return ret;
413 }
414
415 int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode)
416 {
417         struct wl1271_cmd_ps_params *ps_params = NULL;
418         int ret = 0;
419
420         /* FIXME: this should be in ps.c */
421         ret = wl1271_acx_wake_up_conditions(wl, WAKE_UP_EVENT_DTIM_BITMAP,
422                                             wl->listen_int);
423         if (ret < 0) {
424                 wl1271_error("couldn't set wake up conditions");
425                 goto out;
426         }
427
428         wl1271_debug(DEBUG_CMD, "cmd set ps mode");
429
430         ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
431         if (!ps_params) {
432                 ret = -ENOMEM;
433                 goto out;
434         }
435
436         ps_params->ps_mode = ps_mode;
437         ps_params->send_null_data = 1;
438         ps_params->retries = 5;
439         ps_params->hang_over_period = 128;
440         ps_params->null_data_rate = 1; /* 1 Mbps */
441
442         ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
443                               sizeof(*ps_params));
444         if (ret < 0) {
445                 wl1271_error("cmd set_ps_mode failed");
446                 goto out;
447         }
448
449 out:
450         kfree(ps_params);
451         return ret;
452 }
453
454 int wl1271_cmd_read_memory(struct wl1271 *wl, u32 addr, void *answer,
455                            size_t len)
456 {
457         struct cmd_read_write_memory *cmd;
458         int ret = 0;
459
460         wl1271_debug(DEBUG_CMD, "cmd read memory");
461
462         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
463         if (!cmd) {
464                 ret = -ENOMEM;
465                 goto out;
466         }
467
468         WARN_ON(len > MAX_READ_SIZE);
469         len = min_t(size_t, len, MAX_READ_SIZE);
470
471         cmd->addr = addr;
472         cmd->size = len;
473
474         ret = wl1271_cmd_send(wl, CMD_READ_MEMORY, cmd, sizeof(*cmd));
475         if (ret < 0) {
476                 wl1271_error("read memory command failed: %d", ret);
477                 goto out;
478         }
479
480         /* the read command got in, we can now read the answer */
481         wl1271_spi_mem_read(wl, wl->cmd_box_addr, cmd, sizeof(*cmd));
482
483         if (cmd->header.status != CMD_STATUS_SUCCESS)
484                 wl1271_error("error in read command result: %d",
485                              cmd->header.status);
486
487         memcpy(answer, cmd->value, len);
488
489 out:
490         kfree(cmd);
491         return ret;
492 }
493
494 int wl1271_cmd_scan(struct wl1271 *wl, u8 *ssid, size_t len,
495                     u8 active_scan, u8 high_prio, u8 num_channels,
496                     u8 probe_requests)
497 {
498
499         struct wl1271_cmd_trigger_scan_to *trigger = NULL;
500         struct wl1271_cmd_scan *params = NULL;
501         int i, ret;
502         u16 scan_options = 0;
503
504         if (wl->scanning)
505                 return -EINVAL;
506
507         params = kzalloc(sizeof(*params), GFP_KERNEL);
508         if (!params)
509                 return -ENOMEM;
510
511         params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
512         params->params.rx_filter_options =
513                 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
514
515         if (!active_scan)
516                 scan_options |= WL1271_SCAN_OPT_PASSIVE;
517         if (high_prio)
518                 scan_options |= WL1271_SCAN_OPT_PRIORITY_HIGH;
519         params->params.scan_options = scan_options;
520
521         params->params.num_channels = num_channels;
522         params->params.num_probe_requests = probe_requests;
523         params->params.tx_rate = cpu_to_le32(RATE_MASK_2MBPS);
524         params->params.tid_trigger = 0;
525         params->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
526
527         for (i = 0; i < num_channels; i++) {
528                 params->channels[i].min_duration =
529                         cpu_to_le32(WL1271_SCAN_CHAN_MIN_DURATION);
530                 params->channels[i].max_duration =
531                         cpu_to_le32(WL1271_SCAN_CHAN_MAX_DURATION);
532                 memset(&params->channels[i].bssid_lsb, 0xff, 4);
533                 memset(&params->channels[i].bssid_msb, 0xff, 2);
534                 params->channels[i].early_termination = 0;
535                 params->channels[i].tx_power_att = WL1271_SCAN_CURRENT_TX_PWR;
536                 params->channels[i].channel = i + 1;
537         }
538
539         if (len && ssid) {
540                 params->params.ssid_len = len;
541                 memcpy(params->params.ssid, ssid, len);
542         }
543
544         ret = wl1271_cmd_build_probe_req(wl, ssid, len);
545         if (ret < 0) {
546                 wl1271_error("PROBE request template failed");
547                 goto out;
548         }
549
550         trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
551         if (!trigger) {
552                 ret = -ENOMEM;
553                 goto out;
554         }
555
556         /* disable the timeout */
557         trigger->timeout = 0;
558
559         ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
560                               sizeof(*trigger));
561         if (ret < 0) {
562                 wl1271_error("trigger scan to failed for hw scan");
563                 goto out;
564         }
565
566         wl1271_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
567
568         wl->scanning = true;
569
570         ret = wl1271_cmd_send(wl, CMD_SCAN, params, sizeof(*params));
571         if (ret < 0) {
572                 wl1271_error("SCAN failed");
573                 goto out;
574         }
575
576         wl1271_spi_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params));
577
578         if (params->header.status != CMD_STATUS_SUCCESS) {
579                 wl1271_error("Scan command error: %d",
580                              params->header.status);
581                 wl->scanning = false;
582                 ret = -EIO;
583                 goto out;
584         }
585
586 out:
587         kfree(params);
588         return ret;
589 }
590
591 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
592                             void *buf, size_t buf_len)
593 {
594         struct wl1271_cmd_template_set *cmd;
595         int ret = 0;
596
597         wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
598
599         WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
600         buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
601
602         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
603         if (!cmd) {
604                 ret = -ENOMEM;
605                 goto out;
606         }
607
608         cmd->len = cpu_to_le16(buf_len);
609         cmd->template_type = template_id;
610         cmd->enabled_rates = ACX_RATE_MASK_UNSPECIFIED;
611         cmd->short_retry_limit = ACX_RATE_RETRY_LIMIT;
612         cmd->long_retry_limit = ACX_RATE_RETRY_LIMIT;
613
614         if (buf)
615                 memcpy(cmd->template_data, buf, buf_len);
616
617         ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd));
618         if (ret < 0) {
619                 wl1271_warning("cmd set_template failed: %d", ret);
620                 goto out_free;
621         }
622
623 out_free:
624         kfree(cmd);
625
626 out:
627         return ret;
628 }
629
630 static int wl1271_build_basic_rates(char *rates)
631 {
632         u8 index = 0;
633
634         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
635         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
636         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
637         rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
638
639         return index;
640 }
641
642 static int wl1271_build_extended_rates(char *rates)
643 {
644         u8 index = 0;
645
646         rates[index++] = IEEE80211_OFDM_RATE_6MB;
647         rates[index++] = IEEE80211_OFDM_RATE_9MB;
648         rates[index++] = IEEE80211_OFDM_RATE_12MB;
649         rates[index++] = IEEE80211_OFDM_RATE_18MB;
650         rates[index++] = IEEE80211_OFDM_RATE_24MB;
651         rates[index++] = IEEE80211_OFDM_RATE_36MB;
652         rates[index++] = IEEE80211_OFDM_RATE_48MB;
653         rates[index++] = IEEE80211_OFDM_RATE_54MB;
654
655         return index;
656 }
657
658 int wl1271_cmd_build_null_data(struct wl1271 *wl)
659 {
660         struct wl12xx_null_data_template template;
661
662         if (!is_zero_ether_addr(wl->bssid)) {
663                 memcpy(template.header.da, wl->bssid, ETH_ALEN);
664                 memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
665         } else {
666                 memset(template.header.da, 0xff, ETH_ALEN);
667                 memset(template.header.bssid, 0xff, ETH_ALEN);
668         }
669
670         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
671         template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
672                                                 IEEE80211_STYPE_NULLFUNC);
673
674         return wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, &template,
675                                        sizeof(template));
676
677 }
678
679 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, u16 aid)
680 {
681         struct wl12xx_ps_poll_template template;
682
683         memcpy(template.bssid, wl->bssid, ETH_ALEN);
684         memcpy(template.ta, wl->mac_addr, ETH_ALEN);
685
686         /* aid in PS-Poll has its two MSBs each set to 1 */
687         template.aid = cpu_to_le16(1 << 15 | 1 << 14 | aid);
688
689         template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
690
691         return wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, &template,
692                                        sizeof(template));
693
694 }
695
696 int wl1271_cmd_build_probe_req(struct wl1271 *wl, u8 *ssid, size_t ssid_len)
697 {
698         struct wl12xx_probe_req_template template;
699         struct wl12xx_ie_rates *rates;
700         char *ptr;
701         u16 size;
702
703         ptr = (char *)&template;
704         size = sizeof(struct ieee80211_header);
705
706         memset(template.header.da, 0xff, ETH_ALEN);
707         memset(template.header.bssid, 0xff, ETH_ALEN);
708         memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
709         template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
710
711         /* IEs */
712         /* SSID */
713         template.ssid.header.id = WLAN_EID_SSID;
714         template.ssid.header.len = ssid_len;
715         if (ssid_len && ssid)
716                 memcpy(template.ssid.ssid, ssid, ssid_len);
717         size += sizeof(struct wl12xx_ie_header) + ssid_len;
718         ptr += size;
719
720         /* Basic Rates */
721         rates = (struct wl12xx_ie_rates *)ptr;
722         rates->header.id = WLAN_EID_SUPP_RATES;
723         rates->header.len = wl1271_build_basic_rates(rates->rates);
724         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
725         ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
726
727         /* Extended rates */
728         rates = (struct wl12xx_ie_rates *)ptr;
729         rates->header.id = WLAN_EID_EXT_SUPP_RATES;
730         rates->header.len = wl1271_build_extended_rates(rates->rates);
731         size += sizeof(struct wl12xx_ie_header) + rates->header.len;
732
733         wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
734
735         return wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
736                                        &template, size);
737 }
738
739 int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
740 {
741         struct wl1271_cmd_set_keys *cmd;
742         int ret = 0;
743
744         wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
745
746         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
747         if (!cmd) {
748                 ret = -ENOMEM;
749                 goto out;
750         }
751
752         cmd->id = id;
753         cmd->key_action = KEY_SET_ID;
754         cmd->key_type = KEY_WEP;
755
756         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
757         if (ret < 0) {
758                 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
759                 goto out;
760         }
761
762 out:
763         kfree(cmd);
764
765         return ret;
766 }
767
768 int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
769                        u8 key_size, const u8 *key, const u8 *addr,
770                        u32 tx_seq_32, u16 tx_seq_16)
771 {
772         struct wl1271_cmd_set_keys *cmd;
773         int ret = 0;
774
775         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
776         if (!cmd) {
777                 ret = -ENOMEM;
778                 goto out;
779         }
780
781         if (key_type != KEY_WEP)
782                 memcpy(cmd->addr, addr, ETH_ALEN);
783
784         cmd->key_action = action;
785         cmd->key_size = key_size;
786         cmd->key_type = key_type;
787
788         cmd->ac_seq_num16[0] = tx_seq_16;
789         cmd->ac_seq_num32[0] = tx_seq_32;
790
791         /* we have only one SSID profile */
792         cmd->ssid_profile = 0;
793
794         cmd->id = id;
795
796         if (key_type == KEY_TKIP) {
797                 /*
798                  * We get the key in the following form:
799                  * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
800                  * but the target is expecting:
801                  * TKIP - RX MIC - TX MIC
802                  */
803                 memcpy(cmd->key, key, 16);
804                 memcpy(cmd->key + 16, key + 24, 8);
805                 memcpy(cmd->key + 24, key + 16, 8);
806
807         } else {
808                 memcpy(cmd->key, key, key_size);
809         }
810
811         wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
812
813         ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd));
814         if (ret < 0) {
815                 wl1271_warning("could not set keys");
816                 goto out;
817         }
818
819 out:
820         kfree(cmd);
821
822         return ret;
823 }