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  • Committer: Bazaar Package Importer
  • Author(s): Andy Whitcroft, Andy Whitcroft
  • Date: 2010-02-04 23:15:51 UTC
  • Revision ID: james.westby@ubuntu.com-20100204231551-vjz5pkvxclukjxm1
Tags: 2.6.32-12.1
[ Andy Whitcroft ]

* initial LBM for lucid
* drop generated files
* printchanges -- rebase tree does not have stable tags use changelog
* printenv -- add revisions to printenv output
* formally rename compat-wireless to linux-backports-modules-wireless
* Update to compat-wireless-2.6.33-rc5
* update nouveau to mainline 2.6.33-rc4
* add new LBM package for nouveau
* nouveau -- fix major numbers and proc entry names
* fix up firmware installs for -wireless
* clean up UPDATE-NOVEAU
* update Nouveau to v2.6.33-rc6

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updates/compat-wireless-2.6/drivers/net/wireless/p54/main.c
 
1
/*
 
2
 * mac80211 glue code for mac80211 Prism54 drivers
 
3
 *
 
4
 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
 
5
 * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
 
6
 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
 
7
 *
 
8
 * Based on:
 
9
 * - the islsm (softmac prism54) driver, which is:
 
10
 *   Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
 
11
 * - stlc45xx driver
 
12
 *   Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
 
13
 *
 
14
 * This program is free software; you can redistribute it and/or modify
 
15
 * it under the terms of the GNU General Public License version 2 as
 
16
 * published by the Free Software Foundation.
 
17
 */
 
18
 
 
19
#include <linux/init.h>
 
20
#include <linux/firmware.h>
 
21
#include <linux/etherdevice.h>
 
22
 
 
23
#include <net/mac80211.h>
 
24
 
 
25
#include "p54.h"
 
26
#include "lmac.h"
 
27
 
 
28
static int modparam_nohwcrypt;
 
29
module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
 
30
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 
31
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
 
32
MODULE_DESCRIPTION("Softmac Prism54 common code");
 
33
MODULE_LICENSE("GPL");
 
34
MODULE_ALIAS("prism54common");
 
35
 
 
36
static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
 
37
                              enum sta_notify_cmd notify_cmd,
 
38
                              struct ieee80211_sta *sta)
 
39
{
 
40
        struct p54_common *priv = dev->priv;
 
41
        switch (notify_cmd) {
 
42
        case STA_NOTIFY_ADD:
 
43
        case STA_NOTIFY_REMOVE:
 
44
                /*
 
45
                 * Notify the firmware that we don't want or we don't
 
46
                 * need to buffer frames for this station anymore.
 
47
                 */
 
48
 
 
49
                p54_sta_unlock(priv, sta->addr);
 
50
                break;
 
51
        case STA_NOTIFY_AWAKE:
 
52
                /* update the firmware's filter table */
 
53
                p54_sta_unlock(priv, sta->addr);
 
54
                break;
 
55
        default:
 
56
                break;
 
57
        }
 
58
}
 
59
 
 
60
static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
 
61
                        bool set)
 
62
{
 
63
        struct p54_common *priv = dev->priv;
 
64
 
 
65
        return p54_update_beacon_tim(priv, sta->aid, set);
 
66
}
 
67
 
 
68
u8 *p54_find_ie(struct sk_buff *skb, u8 ie)
 
69
{
 
70
        struct ieee80211_mgmt *mgmt = (void *)skb->data;
 
71
        u8 *pos, *end;
 
72
 
 
73
        if (skb->len <= sizeof(mgmt))
 
74
                return NULL;
 
75
 
 
76
        pos = (u8 *)mgmt->u.beacon.variable;
 
77
        end = skb->data + skb->len;
 
78
        while (pos < end) {
 
79
                if (pos + 2 + pos[1] > end)
 
80
                        return NULL;
 
81
 
 
82
                if (pos[0] == ie)
 
83
                        return pos;
 
84
 
 
85
                pos += 2 + pos[1];
 
86
        }
 
87
        return NULL;
 
88
}
 
89
 
 
90
static int p54_beacon_format_ie_tim(struct sk_buff *skb)
 
91
{
 
92
        /*
 
93
         * the good excuse for this mess is ... the firmware.
 
94
         * The dummy TIM MUST be at the end of the beacon frame,
 
95
         * because it'll be overwritten!
 
96
         */
 
97
        u8 *tim;
 
98
        u8 dtim_len;
 
99
        u8 dtim_period;
 
100
        u8 *next;
 
101
 
 
102
        tim = p54_find_ie(skb, WLAN_EID_TIM);
 
103
        if (!tim)
 
104
                return 0;
 
105
 
 
106
        dtim_len = tim[1];
 
107
        dtim_period = tim[3];
 
108
        next = tim + 2 + dtim_len;
 
109
 
 
110
        if (dtim_len < 3)
 
111
                return -EINVAL;
 
112
 
 
113
        memmove(tim, next, skb_tail_pointer(skb) - next);
 
114
        tim = skb_tail_pointer(skb) - (dtim_len + 2);
 
115
 
 
116
        /* add the dummy at the end */
 
117
        tim[0] = WLAN_EID_TIM;
 
118
        tim[1] = 3;
 
119
        tim[2] = 0;
 
120
        tim[3] = dtim_period;
 
121
        tim[4] = 0;
 
122
 
 
123
        if (dtim_len > 3)
 
124
                skb_trim(skb, skb->len - (dtim_len - 3));
 
125
 
 
126
        return 0;
 
127
}
 
128
 
 
129
static int p54_beacon_update(struct p54_common *priv,
 
130
                        struct ieee80211_vif *vif)
 
131
{
 
132
        struct sk_buff *beacon;
 
133
        int ret;
 
134
 
 
135
        beacon = ieee80211_beacon_get(priv->hw, vif);
 
136
        if (!beacon)
 
137
                return -ENOMEM;
 
138
        ret = p54_beacon_format_ie_tim(beacon);
 
139
        if (ret)
 
140
                return ret;
 
141
 
 
142
        /*
 
143
         * During operation, the firmware takes care of beaconing.
 
144
         * The driver only needs to upload a new beacon template, once
 
145
         * the template was changed by the stack or userspace.
 
146
         *
 
147
         * LMAC API 3.2.2 also specifies that the driver does not need
 
148
         * to cancel the old beacon template by hand, instead the firmware
 
149
         * will release the previous one through the feedback mechanism.
 
150
         */
 
151
        WARN_ON(p54_tx_80211(priv->hw, beacon));
 
152
        priv->tsf_high32 = 0;
 
153
        priv->tsf_low32 = 0;
 
154
 
 
155
        return 0;
 
156
}
 
157
 
 
158
static int p54_start(struct ieee80211_hw *dev)
 
159
{
 
160
        struct p54_common *priv = dev->priv;
 
161
        int err;
 
162
 
 
163
        mutex_lock(&priv->conf_mutex);
 
164
        err = priv->open(dev);
 
165
        if (err)
 
166
                goto out;
 
167
        P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47);
 
168
        P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94);
 
169
        P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0);
 
170
        P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0);
 
171
        err = p54_set_edcf(priv);
 
172
        if (err)
 
173
                goto out;
 
174
 
 
175
        memset(priv->bssid, ~0, ETH_ALEN);
 
176
        priv->mode = NL80211_IFTYPE_MONITOR;
 
177
        err = p54_setup_mac(priv);
 
178
        if (err) {
 
179
                priv->mode = NL80211_IFTYPE_UNSPECIFIED;
 
180
                goto out;
 
181
        }
 
182
 
 
183
        ieee80211_queue_delayed_work(dev, &priv->work, 0);
 
184
 
 
185
        priv->softled_state = 0;
 
186
        err = p54_set_leds(priv);
 
187
 
 
188
out:
 
189
        mutex_unlock(&priv->conf_mutex);
 
190
        return err;
 
191
}
 
192
 
 
193
static void p54_stop(struct ieee80211_hw *dev)
 
194
{
 
195
        struct p54_common *priv = dev->priv;
 
196
        int i;
 
197
 
 
198
        mutex_lock(&priv->conf_mutex);
 
199
        priv->mode = NL80211_IFTYPE_UNSPECIFIED;
 
200
        priv->softled_state = 0;
 
201
        p54_set_leds(priv);
 
202
 
 
203
        cancel_delayed_work_sync(&priv->work);
 
204
 
 
205
        priv->stop(dev);
 
206
        skb_queue_purge(&priv->tx_pending);
 
207
        skb_queue_purge(&priv->tx_queue);
 
208
        for (i = 0; i < P54_QUEUE_NUM; i++) {
 
209
                priv->tx_stats[i].count = 0;
 
210
                priv->tx_stats[i].len = 0;
 
211
        }
 
212
 
 
213
        priv->beacon_req_id = cpu_to_le32(0);
 
214
        priv->tsf_high32 = priv->tsf_low32 = 0;
 
215
        mutex_unlock(&priv->conf_mutex);
 
216
}
 
217
 
 
218
static int p54_add_interface(struct ieee80211_hw *dev,
 
219
                             struct ieee80211_if_init_conf *conf)
 
220
{
 
221
        struct p54_common *priv = dev->priv;
 
222
 
 
223
        mutex_lock(&priv->conf_mutex);
 
224
        if (priv->mode != NL80211_IFTYPE_MONITOR) {
 
225
                mutex_unlock(&priv->conf_mutex);
 
226
                return -EOPNOTSUPP;
 
227
        }
 
228
 
 
229
        priv->vif = conf->vif;
 
230
 
 
231
        switch (conf->type) {
 
232
        case NL80211_IFTYPE_STATION:
 
233
        case NL80211_IFTYPE_ADHOC:
 
234
        case NL80211_IFTYPE_AP:
 
235
        case NL80211_IFTYPE_MESH_POINT:
 
236
                priv->mode = conf->type;
 
237
                break;
 
238
        default:
 
239
                mutex_unlock(&priv->conf_mutex);
 
240
                return -EOPNOTSUPP;
 
241
        }
 
242
 
 
243
        memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
 
244
        p54_setup_mac(priv);
 
245
        mutex_unlock(&priv->conf_mutex);
 
246
        return 0;
 
247
}
 
248
 
 
249
static void p54_remove_interface(struct ieee80211_hw *dev,
 
250
                                 struct ieee80211_if_init_conf *conf)
 
251
{
 
252
        struct p54_common *priv = dev->priv;
 
253
 
 
254
        mutex_lock(&priv->conf_mutex);
 
255
        priv->vif = NULL;
 
256
 
 
257
        /*
 
258
         * LMAC API 3.2.2 states that any active beacon template must be
 
259
         * canceled by the driver before attempting a mode transition.
 
260
         */
 
261
        if (le32_to_cpu(priv->beacon_req_id) != 0) {
 
262
                p54_tx_cancel(priv, priv->beacon_req_id);
 
263
                wait_for_completion_interruptible_timeout(&priv->beacon_comp, HZ);
 
264
        }
 
265
        priv->mode = NL80211_IFTYPE_MONITOR;
 
266
        memset(priv->mac_addr, 0, ETH_ALEN);
 
267
        memset(priv->bssid, 0, ETH_ALEN);
 
268
        p54_setup_mac(priv);
 
269
        mutex_unlock(&priv->conf_mutex);
 
270
}
 
271
 
 
272
static int p54_config(struct ieee80211_hw *dev, u32 changed)
 
273
{
 
274
        int ret = 0;
 
275
        struct p54_common *priv = dev->priv;
 
276
        struct ieee80211_conf *conf = &dev->conf;
 
277
 
 
278
        mutex_lock(&priv->conf_mutex);
 
279
        if (changed & IEEE80211_CONF_CHANGE_POWER)
 
280
                priv->output_power = conf->power_level << 2;
 
281
        if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 
282
                ret = p54_scan(priv, P54_SCAN_EXIT, 0);
 
283
                if (ret)
 
284
                        goto out;
 
285
        }
 
286
        if (changed & IEEE80211_CONF_CHANGE_PS) {
 
287
                ret = p54_set_ps(priv);
 
288
                if (ret)
 
289
                        goto out;
 
290
        }
 
291
        if (changed & IEEE80211_CONF_CHANGE_IDLE) {
 
292
                ret = p54_setup_mac(priv);
 
293
                if (ret)
 
294
                        goto out;
 
295
        }
 
296
 
 
297
out:
 
298
        mutex_unlock(&priv->conf_mutex);
 
299
        return ret;
 
300
}
 
301
 
 
302
static void p54_configure_filter(struct ieee80211_hw *dev,
 
303
                                 unsigned int changed_flags,
 
304
                                 unsigned int *total_flags,
 
305
                                 u64 multicast)
 
306
{
 
307
        struct p54_common *priv = dev->priv;
 
308
 
 
309
        *total_flags &= FIF_PROMISC_IN_BSS |
 
310
                        FIF_OTHER_BSS;
 
311
 
 
312
        priv->filter_flags = *total_flags;
 
313
 
 
314
        if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS))
 
315
                p54_setup_mac(priv);
 
316
}
 
317
 
 
318
static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue,
 
319
                       const struct ieee80211_tx_queue_params *params)
 
320
{
 
321
        struct p54_common *priv = dev->priv;
 
322
        int ret;
 
323
 
 
324
        mutex_lock(&priv->conf_mutex);
 
325
        if (queue < dev->queues) {
 
326
                P54_SET_QUEUE(priv->qos_params[queue], params->aifs,
 
327
                        params->cw_min, params->cw_max, params->txop);
 
328
                ret = p54_set_edcf(priv);
 
329
        } else
 
330
                ret = -EINVAL;
 
331
        mutex_unlock(&priv->conf_mutex);
 
332
        return ret;
 
333
}
 
334
 
 
335
static void p54_work(struct work_struct *work)
 
336
{
 
337
        struct p54_common *priv = container_of(work, struct p54_common,
 
338
                                               work.work);
 
339
 
 
340
        if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
 
341
                return ;
 
342
 
 
343
        /*
 
344
         * TODO: walk through tx_queue and do the following tasks
 
345
         *      1. initiate bursts.
 
346
         *      2. cancel stuck frames / reset the device if necessary.
 
347
         */
 
348
 
 
349
        p54_fetch_statistics(priv);
 
350
}
 
351
 
 
352
static int p54_get_stats(struct ieee80211_hw *dev,
 
353
                         struct ieee80211_low_level_stats *stats)
 
354
{
 
355
        struct p54_common *priv = dev->priv;
 
356
 
 
357
        memcpy(stats, &priv->stats, sizeof(*stats));
 
358
        return 0;
 
359
}
 
360
 
 
361
static int p54_get_tx_stats(struct ieee80211_hw *dev,
 
362
                            struct ieee80211_tx_queue_stats *stats)
 
363
{
 
364
        struct p54_common *priv = dev->priv;
 
365
 
 
366
        memcpy(stats, &priv->tx_stats[P54_QUEUE_DATA],
 
367
               sizeof(stats[0]) * dev->queues);
 
368
        return 0;
 
369
}
 
370
 
 
371
static void p54_bss_info_changed(struct ieee80211_hw *dev,
 
372
                                 struct ieee80211_vif *vif,
 
373
                                 struct ieee80211_bss_conf *info,
 
374
                                 u32 changed)
 
375
{
 
376
        struct p54_common *priv = dev->priv;
 
377
 
 
378
        mutex_lock(&priv->conf_mutex);
 
379
        if (changed & BSS_CHANGED_BSSID) {
 
380
                memcpy(priv->bssid, info->bssid, ETH_ALEN);
 
381
                p54_setup_mac(priv);
 
382
        }
 
383
 
 
384
        if (changed & BSS_CHANGED_BEACON) {
 
385
                p54_scan(priv, P54_SCAN_EXIT, 0);
 
386
                p54_setup_mac(priv);
 
387
                p54_beacon_update(priv, vif);
 
388
                p54_set_edcf(priv);
 
389
        }
 
390
 
 
391
        if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_BEACON)) {
 
392
                priv->use_short_slot = info->use_short_slot;
 
393
                p54_set_edcf(priv);
 
394
        }
 
395
        if (changed & BSS_CHANGED_BASIC_RATES) {
 
396
                if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
 
397
                        priv->basic_rate_mask = (info->basic_rates << 4);
 
398
                else
 
399
                        priv->basic_rate_mask = info->basic_rates;
 
400
                p54_setup_mac(priv);
 
401
                if (priv->fw_var >= 0x500)
 
402
                        p54_scan(priv, P54_SCAN_EXIT, 0);
 
403
        }
 
404
        if (changed & BSS_CHANGED_ASSOC) {
 
405
                if (info->assoc) {
 
406
                        priv->aid = info->aid;
 
407
                        priv->wakeup_timer = info->beacon_int *
 
408
                                             info->dtim_period * 5;
 
409
                        p54_setup_mac(priv);
 
410
                } else {
 
411
                        priv->wakeup_timer = 500;
 
412
                        priv->aid = 0;
 
413
                }
 
414
        }
 
415
 
 
416
        mutex_unlock(&priv->conf_mutex);
 
417
}
 
418
 
 
419
static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
 
420
                       struct ieee80211_vif *vif, struct ieee80211_sta *sta,
 
421
                       struct ieee80211_key_conf *key)
 
422
{
 
423
        struct p54_common *priv = dev->priv;
 
424
        int slot, ret = 0;
 
425
        u8 algo = 0;
 
426
        u8 *addr = NULL;
 
427
 
 
428
        if (modparam_nohwcrypt)
 
429
                return -EOPNOTSUPP;
 
430
 
 
431
        mutex_lock(&priv->conf_mutex);
 
432
        if (cmd == SET_KEY) {
 
433
                switch (key->alg) {
 
434
                case ALG_TKIP:
 
435
                        if (!(priv->privacy_caps & (BR_DESC_PRIV_CAP_MICHAEL |
 
436
                              BR_DESC_PRIV_CAP_TKIP))) {
 
437
                                ret = -EOPNOTSUPP;
 
438
                                goto out_unlock;
 
439
                        }
 
440
                        key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 
441
                        algo = P54_CRYPTO_TKIPMICHAEL;
 
442
                        break;
 
443
                case ALG_WEP:
 
444
                        if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_WEP)) {
 
445
                                ret = -EOPNOTSUPP;
 
446
                                goto out_unlock;
 
447
                        }
 
448
                        key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 
449
                        algo = P54_CRYPTO_WEP;
 
450
                        break;
 
451
                case ALG_CCMP:
 
452
                        if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP)) {
 
453
                                ret = -EOPNOTSUPP;
 
454
                                goto out_unlock;
 
455
                        }
 
456
                        key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 
457
                        algo = P54_CRYPTO_AESCCMP;
 
458
                        break;
 
459
                default:
 
460
                        ret = -EOPNOTSUPP;
 
461
                        goto out_unlock;
 
462
                }
 
463
                slot = bitmap_find_free_region(priv->used_rxkeys,
 
464
                                               priv->rx_keycache_size, 0);
 
465
 
 
466
                if (slot < 0) {
 
467
                        /*
 
468
                         * The device supports the choosen algorithm, but the
 
469
                         * firmware does not provide enough key slots to store
 
470
                         * all of them.
 
471
                         * But encryption offload for outgoing frames is always
 
472
                         * possible, so we just pretend that the upload was
 
473
                         * successful and do the decryption in software.
 
474
                         */
 
475
 
 
476
                        /* mark the key as invalid. */
 
477
                        key->hw_key_idx = 0xff;
 
478
                        goto out_unlock;
 
479
                }
 
480
        } else {
 
481
                slot = key->hw_key_idx;
 
482
 
 
483
                if (slot == 0xff) {
 
484
                        /* This key was not uploaded into the rx key cache. */
 
485
 
 
486
                        goto out_unlock;
 
487
                }
 
488
 
 
489
                bitmap_release_region(priv->used_rxkeys, slot, 0);
 
490
                algo = 0;
 
491
        }
 
492
 
 
493
        if (sta)
 
494
                addr = sta->addr;
 
495
 
 
496
        ret = p54_upload_key(priv, algo, slot, key->keyidx,
 
497
                             key->keylen, addr, key->key);
 
498
        if (ret) {
 
499
                bitmap_release_region(priv->used_rxkeys, slot, 0);
 
500
                ret = -EOPNOTSUPP;
 
501
                goto out_unlock;
 
502
        }
 
503
 
 
504
        key->hw_key_idx = slot;
 
505
 
 
506
out_unlock:
 
507
        mutex_unlock(&priv->conf_mutex);
 
508
        return ret;
 
509
}
 
510
 
 
511
static const struct ieee80211_ops p54_ops = {
 
512
        .tx                     = p54_tx_80211,
 
513
        .start                  = p54_start,
 
514
        .stop                   = p54_stop,
 
515
        .add_interface          = p54_add_interface,
 
516
        .remove_interface       = p54_remove_interface,
 
517
        .set_tim                = p54_set_tim,
 
518
        .sta_notify             = p54_sta_notify,
 
519
        .set_key                = p54_set_key,
 
520
        .config                 = p54_config,
 
521
        .bss_info_changed       = p54_bss_info_changed,
 
522
        .configure_filter       = p54_configure_filter,
 
523
        .conf_tx                = p54_conf_tx,
 
524
        .get_stats              = p54_get_stats,
 
525
        .get_tx_stats           = p54_get_tx_stats
 
526
};
 
527
 
 
528
struct ieee80211_hw *p54_init_common(size_t priv_data_len)
 
529
{
 
530
        struct ieee80211_hw *dev;
 
531
        struct p54_common *priv;
 
532
 
 
533
        dev = ieee80211_alloc_hw(priv_data_len, &p54_ops);
 
534
        if (!dev)
 
535
                return NULL;
 
536
 
 
537
        priv = dev->priv;
 
538
        priv->hw = dev;
 
539
        priv->mode = NL80211_IFTYPE_UNSPECIFIED;
 
540
        priv->basic_rate_mask = 0x15f;
 
541
        spin_lock_init(&priv->tx_stats_lock);
 
542
        skb_queue_head_init(&priv->tx_queue);
 
543
        skb_queue_head_init(&priv->tx_pending);
 
544
        dev->flags = IEEE80211_HW_RX_INCLUDES_FCS |
 
545
                     IEEE80211_HW_SIGNAL_DBM |
 
546
                     IEEE80211_HW_SUPPORTS_PS |
 
547
                     IEEE80211_HW_PS_NULLFUNC_STACK |
 
548
                     IEEE80211_HW_BEACON_FILTER |
 
549
                     IEEE80211_HW_NOISE_DBM;
 
550
 
 
551
        dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 
552
                                      BIT(NL80211_IFTYPE_ADHOC) |
 
553
                                      BIT(NL80211_IFTYPE_AP) |
 
554
                                      BIT(NL80211_IFTYPE_MESH_POINT);
 
555
 
 
556
        dev->channel_change_time = 1000;        /* TODO: find actual value */
 
557
        priv->beacon_req_id = cpu_to_le32(0);
 
558
        priv->tx_stats[P54_QUEUE_BEACON].limit = 1;
 
559
        priv->tx_stats[P54_QUEUE_FWSCAN].limit = 1;
 
560
        priv->tx_stats[P54_QUEUE_MGMT].limit = 3;
 
561
        priv->tx_stats[P54_QUEUE_CAB].limit = 3;
 
562
        priv->tx_stats[P54_QUEUE_DATA].limit = 5;
 
563
        dev->queues = 1;
 
564
        priv->noise = -94;
 
565
        /*
 
566
         * We support at most 8 tries no matter which rate they're at,
 
567
         * we cannot support max_rates * max_rate_tries as we set it
 
568
         * here, but setting it correctly to 4/2 or so would limit us
 
569
         * artificially if the RC algorithm wants just two rates, so
 
570
         * let's say 4/7, we'll redistribute it at TX time, see the
 
571
         * comments there.
 
572
         */
 
573
        dev->max_rates = 4;
 
574
        dev->max_rate_tries = 7;
 
575
        dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 +
 
576
                                 sizeof(struct p54_tx_data);
 
577
 
 
578
        /*
 
579
         * For now, disable PS by default because it affects
 
580
         * link stability significantly.
 
581
         */
 
582
        dev->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 
583
 
 
584
        mutex_init(&priv->conf_mutex);
 
585
        mutex_init(&priv->eeprom_mutex);
 
586
        init_completion(&priv->eeprom_comp);
 
587
        init_completion(&priv->beacon_comp);
 
588
        INIT_DELAYED_WORK(&priv->work, p54_work);
 
589
 
 
590
        return dev;
 
591
}
 
592
EXPORT_SYMBOL_GPL(p54_init_common);
 
593
 
 
594
int p54_register_common(struct ieee80211_hw *dev, struct device *pdev)
 
595
{
 
596
        struct p54_common *priv = dev->priv;
 
597
        int err;
 
598
 
 
599
        err = ieee80211_register_hw(dev);
 
600
        if (err) {
 
601
                dev_err(pdev, "Cannot register device (%d).\n", err);
 
602
                return err;
 
603
        }
 
604
 
 
605
#ifdef CONFIG_P54_LEDS
 
606
        err = p54_init_leds(priv);
 
607
        if (err)
 
608
                return err;
 
609
#endif /* CONFIG_P54_LEDS */
 
610
 
 
611
        dev_info(pdev, "is registered as '%s'\n", wiphy_name(dev->wiphy));
 
612
        return 0;
 
613
}
 
614
EXPORT_SYMBOL_GPL(p54_register_common);
 
615
 
 
616
void p54_free_common(struct ieee80211_hw *dev)
 
617
{
 
618
        struct p54_common *priv = dev->priv;
 
619
        unsigned int i;
 
620
 
 
621
        for (i = 0; i < IEEE80211_NUM_BANDS; i++)
 
622
                kfree(priv->band_table[i]);
 
623
 
 
624
        kfree(priv->iq_autocal);
 
625
        kfree(priv->output_limit);
 
626
        kfree(priv->curve_data);
 
627
        kfree(priv->used_rxkeys);
 
628
        priv->iq_autocal = NULL;
 
629
        priv->output_limit = NULL;
 
630
        priv->curve_data = NULL;
 
631
        priv->used_rxkeys = NULL;
 
632
        ieee80211_free_hw(dev);
 
633
}
 
634
EXPORT_SYMBOL_GPL(p54_free_common);
 
635
 
 
636
void p54_unregister_common(struct ieee80211_hw *dev)
 
637
{
 
638
        struct p54_common *priv = dev->priv;
 
639
 
 
640
#ifdef CONFIG_P54_LEDS
 
641
        p54_unregister_leds(priv);
 
642
#endif /* CONFIG_P54_LEDS */
 
643
 
 
644
        ieee80211_unregister_hw(dev);
 
645
        mutex_destroy(&priv->conf_mutex);
 
646
        mutex_destroy(&priv->eeprom_mutex);
 
647
}
 
648
EXPORT_SYMBOL_GPL(p54_unregister_common);