blob: b618bd14583f9489143de1e1654dad3a290c2598 [file] [log] [blame]
Michael Wueff1a592007-09-25 18:11:01 -07001/*
2 * Common code for mac80211 Prism54 drivers
3 *
4 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
5 * Copyright (c) 2007, Christian Lamparter <chunkeey@web.de>
Johannes Bergc12abae2008-10-14 16:56:51 +02006 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
Michael Wueff1a592007-09-25 18:11:01 -07007 *
John W. Linville27df6052008-10-22 16:41:55 -04008 * 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
Chr94834072008-10-29 22:39:50 +010012 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
Michael Wueff1a592007-09-25 18:11:01 -070013 *
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>
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +010024#ifdef CONFIG_P54_LEDS
Christian Lamparterd0b45ae2009-03-06 01:02:04 +010025#include <linux/leds.h>
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +010026#endif /* CONFIG_P54_LEDS */
Michael Wueff1a592007-09-25 18:11:01 -070027
28#include "p54.h"
29#include "p54common.h"
30
Christian Lamparter25900ef2008-11-29 22:34:37 +010031static int modparam_nohwcrypt;
32module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
33MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
Michael Wueff1a592007-09-25 18:11:01 -070034MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
35MODULE_DESCRIPTION("Softmac Prism54 common code");
36MODULE_LICENSE("GPL");
37MODULE_ALIAS("prism54common");
38
Christian Lamparter1b997532008-09-06 14:25:58 +020039static struct ieee80211_rate p54_bgrates[] = {
Johannes Berg8318d782008-01-24 19:38:38 +010040 { .bitrate = 10, .hw_value = 0, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
41 { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
42 { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
43 { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
44 { .bitrate = 60, .hw_value = 4, },
45 { .bitrate = 90, .hw_value = 5, },
46 { .bitrate = 120, .hw_value = 6, },
47 { .bitrate = 180, .hw_value = 7, },
48 { .bitrate = 240, .hw_value = 8, },
49 { .bitrate = 360, .hw_value = 9, },
50 { .bitrate = 480, .hw_value = 10, },
51 { .bitrate = 540, .hw_value = 11, },
52};
53
Christian Lamparter1b997532008-09-06 14:25:58 +020054static struct ieee80211_channel p54_bgchannels[] = {
Johannes Berg8318d782008-01-24 19:38:38 +010055 { .center_freq = 2412, .hw_value = 1, },
56 { .center_freq = 2417, .hw_value = 2, },
57 { .center_freq = 2422, .hw_value = 3, },
58 { .center_freq = 2427, .hw_value = 4, },
59 { .center_freq = 2432, .hw_value = 5, },
60 { .center_freq = 2437, .hw_value = 6, },
61 { .center_freq = 2442, .hw_value = 7, },
62 { .center_freq = 2447, .hw_value = 8, },
63 { .center_freq = 2452, .hw_value = 9, },
64 { .center_freq = 2457, .hw_value = 10, },
65 { .center_freq = 2462, .hw_value = 11, },
66 { .center_freq = 2467, .hw_value = 12, },
67 { .center_freq = 2472, .hw_value = 13, },
68 { .center_freq = 2484, .hw_value = 14, },
69};
70
Johannes Bergc2976ab2008-02-20 12:08:12 +010071static struct ieee80211_supported_band band_2GHz = {
Christian Lamparter1b997532008-09-06 14:25:58 +020072 .channels = p54_bgchannels,
73 .n_channels = ARRAY_SIZE(p54_bgchannels),
74 .bitrates = p54_bgrates,
75 .n_bitrates = ARRAY_SIZE(p54_bgrates),
76};
77
78static struct ieee80211_rate p54_arates[] = {
79 { .bitrate = 60, .hw_value = 4, },
80 { .bitrate = 90, .hw_value = 5, },
81 { .bitrate = 120, .hw_value = 6, },
82 { .bitrate = 180, .hw_value = 7, },
83 { .bitrate = 240, .hw_value = 8, },
84 { .bitrate = 360, .hw_value = 9, },
85 { .bitrate = 480, .hw_value = 10, },
86 { .bitrate = 540, .hw_value = 11, },
87};
88
89static struct ieee80211_channel p54_achannels[] = {
90 { .center_freq = 4920 },
91 { .center_freq = 4940 },
92 { .center_freq = 4960 },
93 { .center_freq = 4980 },
94 { .center_freq = 5040 },
95 { .center_freq = 5060 },
96 { .center_freq = 5080 },
97 { .center_freq = 5170 },
98 { .center_freq = 5180 },
99 { .center_freq = 5190 },
100 { .center_freq = 5200 },
101 { .center_freq = 5210 },
102 { .center_freq = 5220 },
103 { .center_freq = 5230 },
104 { .center_freq = 5240 },
105 { .center_freq = 5260 },
106 { .center_freq = 5280 },
107 { .center_freq = 5300 },
108 { .center_freq = 5320 },
109 { .center_freq = 5500 },
110 { .center_freq = 5520 },
111 { .center_freq = 5540 },
112 { .center_freq = 5560 },
113 { .center_freq = 5580 },
114 { .center_freq = 5600 },
115 { .center_freq = 5620 },
116 { .center_freq = 5640 },
117 { .center_freq = 5660 },
118 { .center_freq = 5680 },
119 { .center_freq = 5700 },
120 { .center_freq = 5745 },
121 { .center_freq = 5765 },
122 { .center_freq = 5785 },
123 { .center_freq = 5805 },
124 { .center_freq = 5825 },
125};
126
127static struct ieee80211_supported_band band_5GHz = {
128 .channels = p54_achannels,
129 .n_channels = ARRAY_SIZE(p54_achannels),
130 .bitrates = p54_arates,
131 .n_bitrates = ARRAY_SIZE(p54_arates),
Johannes Berg8318d782008-01-24 19:38:38 +0100132};
133
Christian Lamparter4e416a62008-09-01 22:48:41 +0200134int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
Michael Wueff1a592007-09-25 18:11:01 -0700135{
136 struct p54_common *priv = dev->priv;
137 struct bootrec_exp_if *exp_if;
138 struct bootrec *bootrec;
139 u32 *data = (u32 *)fw->data;
140 u32 *end_data = (u32 *)fw->data + (fw->size >> 2);
141 u8 *fw_version = NULL;
142 size_t len;
143 int i;
Larry Finger51fb80f2009-01-03 12:45:12 -0600144 int maxlen;
Michael Wueff1a592007-09-25 18:11:01 -0700145
146 if (priv->rx_start)
Christian Lamparter4e416a62008-09-01 22:48:41 +0200147 return 0;
Michael Wueff1a592007-09-25 18:11:01 -0700148
149 while (data < end_data && *data)
150 data++;
151
152 while (data < end_data && !*data)
153 data++;
154
155 bootrec = (struct bootrec *) data;
156
157 while (bootrec->data <= end_data &&
158 (bootrec->data + (len = le32_to_cpu(bootrec->len))) <= end_data) {
159 u32 code = le32_to_cpu(bootrec->code);
160 switch (code) {
161 case BR_CODE_COMPONENT_ID:
Larry Finger1f1c0e32008-09-25 14:54:28 -0500162 priv->fw_interface = be32_to_cpup((__be32 *)
163 bootrec->data);
Christian Lamparter2b808482008-09-04 12:29:38 +0200164 switch (priv->fw_interface) {
Michael Wueff1a592007-09-25 18:11:01 -0700165 case FW_LM86:
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100166 case FW_LM20:
167 case FW_LM87: {
168 char *iftype = (char *)bootrec->data;
169 printk(KERN_INFO "%s: p54 detected a LM%c%c "
170 "firmware\n",
171 wiphy_name(dev->wiphy),
172 iftype[2], iftype[3]);
Michael Wueff1a592007-09-25 18:11:01 -0700173 break;
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100174 }
175 case FW_FMAC:
Michael Wueff1a592007-09-25 18:11:01 -0700176 default:
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100177 printk(KERN_ERR "%s: unsupported firmware\n",
178 wiphy_name(dev->wiphy));
179 return -ENODEV;
Michael Wueff1a592007-09-25 18:11:01 -0700180 }
181 break;
182 case BR_CODE_COMPONENT_VERSION:
183 /* 24 bytes should be enough for all firmwares */
184 if (strnlen((unsigned char*)bootrec->data, 24) < 24)
185 fw_version = (unsigned char*)bootrec->data;
186 break;
Christian Lamparter4e416a62008-09-01 22:48:41 +0200187 case BR_CODE_DESCR: {
188 struct bootrec_desc *desc =
189 (struct bootrec_desc *)bootrec->data;
190 priv->rx_start = le32_to_cpu(desc->rx_start);
Michael Wueff1a592007-09-25 18:11:01 -0700191 /* FIXME add sanity checking */
Christian Lamparter4e416a62008-09-01 22:48:41 +0200192 priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500;
193 priv->headroom = desc->headroom;
194 priv->tailroom = desc->tailroom;
Christian Lamparter25900ef2008-11-29 22:34:37 +0100195 priv->privacy_caps = desc->privacy_caps;
196 priv->rx_keycache_size = desc->rx_keycache_size;
Larry Finger1f1c0e32008-09-25 14:54:28 -0500197 if (le32_to_cpu(bootrec->len) == 11)
Larry Finger2e20cc32008-10-09 17:38:52 -0700198 priv->rx_mtu = le16_to_cpu(desc->rx_mtu);
Christian Lamparter4e416a62008-09-01 22:48:41 +0200199 else
200 priv->rx_mtu = (size_t)
201 0x620 - priv->tx_hdr_len;
Larry Finger51fb80f2009-01-03 12:45:12 -0600202 maxlen = priv->tx_hdr_len + /* USB devices */
203 sizeof(struct p54_rx_data) +
204 4 + /* rx alignment */
205 IEEE80211_MAX_FRAG_THRESHOLD;
206 if (priv->rx_mtu > maxlen && PAGE_SIZE == 4096) {
207 printk(KERN_INFO "p54: rx_mtu reduced from %d "
208 "to %d\n", priv->rx_mtu,
209 maxlen);
210 priv->rx_mtu = maxlen;
211 }
Michael Wueff1a592007-09-25 18:11:01 -0700212 break;
Christian Lamparter4e416a62008-09-01 22:48:41 +0200213 }
Michael Wueff1a592007-09-25 18:11:01 -0700214 case BR_CODE_EXPOSED_IF:
215 exp_if = (struct bootrec_exp_if *) bootrec->data;
216 for (i = 0; i < (len * sizeof(*exp_if) / 4); i++)
Al Virodc73c622007-12-21 23:49:02 -0500217 if (exp_if[i].if_id == cpu_to_le16(0x1a))
Michael Wueff1a592007-09-25 18:11:01 -0700218 priv->fw_var = le16_to_cpu(exp_if[i].variant);
219 break;
220 case BR_CODE_DEPENDENT_IF:
221 break;
222 case BR_CODE_END_OF_BRA:
223 case LEGACY_BR_CODE_END_OF_BRA:
224 end_data = NULL;
225 break;
226 default:
227 break;
228 }
229 bootrec = (struct bootrec *)&bootrec->data[len];
230 }
231
232 if (fw_version)
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100233 printk(KERN_INFO "%s: FW rev %s - Softmac protocol %x.%x\n",
234 wiphy_name(dev->wiphy), fw_version,
235 priv->fw_var >> 8, priv->fw_var & 0xff);
Michael Wueff1a592007-09-25 18:11:01 -0700236
Christian Lamparter9a8675d2008-10-18 23:04:15 +0200237 if (priv->fw_var < 0x500)
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100238 printk(KERN_INFO "%s: you are using an obsolete firmware. "
Christian Lamparter9a8675d2008-10-18 23:04:15 +0200239 "visit http://wireless.kernel.org/en/users/Drivers/p54 "
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100240 "and grab one for \"kernel >= 2.6.28\"!\n",
241 wiphy_name(dev->wiphy));
Christian Lamparter9a8675d2008-10-18 23:04:15 +0200242
Michael Wueff1a592007-09-25 18:11:01 -0700243 if (priv->fw_var >= 0x300) {
244 /* Firmware supports QoS, use it! */
Christian Lampartera15bd002008-12-21 20:54:34 +0100245 priv->tx_stats[P54_QUEUE_AC_VO].limit = 3;
246 priv->tx_stats[P54_QUEUE_AC_VI].limit = 4;
247 priv->tx_stats[P54_QUEUE_AC_BE].limit = 3;
248 priv->tx_stats[P54_QUEUE_AC_BK].limit = 2;
249 dev->queues = P54_QUEUE_AC_NUM;
Michael Wueff1a592007-09-25 18:11:01 -0700250 }
Christian Lamparter4e416a62008-09-01 22:48:41 +0200251
Christian Lamparter6dfe9a82009-04-11 03:58:01 +0200252 if (!modparam_nohwcrypt) {
Christian Lamparter25900ef2008-11-29 22:34:37 +0100253 printk(KERN_INFO "%s: cryptographic accelerator "
254 "WEP:%s, TKIP:%s, CCMP:%s\n",
255 wiphy_name(dev->wiphy),
256 (priv->privacy_caps & BR_DESC_PRIV_CAP_WEP) ? "YES" :
257 "no", (priv->privacy_caps & (BR_DESC_PRIV_CAP_TKIP |
258 BR_DESC_PRIV_CAP_MICHAEL)) ? "YES" : "no",
259 (priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP) ?
260 "YES" : "no");
261
Christian Lamparter6dfe9a82009-04-11 03:58:01 +0200262 if (priv->rx_keycache_size) {
263 /*
264 * NOTE:
265 *
266 * The firmware provides at most 255 (0 - 254) slots
267 * for keys which are then used to offload decryption.
268 * As a result the 255 entry (aka 0xff) can be used
269 * safely by the driver to mark keys that didn't fit
270 * into the full cache. This trick saves us from
271 * keeping a extra list for uploaded keys.
272 */
273
274 priv->used_rxkeys = kzalloc(BITS_TO_LONGS(
275 priv->rx_keycache_size), GFP_KERNEL);
276
277 if (!priv->used_rxkeys)
278 return -ENOMEM;
279 }
280 }
281
Christian Lamparter4e416a62008-09-01 22:48:41 +0200282 return 0;
Michael Wueff1a592007-09-25 18:11:01 -0700283}
284EXPORT_SYMBOL_GPL(p54_parse_firmware);
285
Christian Lamparter154e3af2008-08-23 22:15:25 +0200286static int p54_convert_rev0(struct ieee80211_hw *dev,
287 struct pda_pa_curve_data *curve_data)
Michael Wueff1a592007-09-25 18:11:01 -0700288{
289 struct p54_common *priv = dev->priv;
Christian Lamparter154e3af2008-08-23 22:15:25 +0200290 struct p54_pa_curve_data_sample *dst;
291 struct pda_pa_curve_data_sample_rev0 *src;
Michael Wueff1a592007-09-25 18:11:01 -0700292 size_t cd_len = sizeof(*curve_data) +
Christian Lamparter154e3af2008-08-23 22:15:25 +0200293 (curve_data->points_per_channel*sizeof(*dst) + 2) *
Michael Wueff1a592007-09-25 18:11:01 -0700294 curve_data->channels;
295 unsigned int i, j;
296 void *source, *target;
297
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100298 priv->curve_data = kmalloc(sizeof(*priv->curve_data) + cd_len,
299 GFP_KERNEL);
Michael Wueff1a592007-09-25 18:11:01 -0700300 if (!priv->curve_data)
301 return -ENOMEM;
302
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100303 priv->curve_data->entries = curve_data->channels;
304 priv->curve_data->entry_size = sizeof(__le16) +
305 sizeof(*dst) * curve_data->points_per_channel;
306 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
307 priv->curve_data->len = cd_len;
308 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
Michael Wueff1a592007-09-25 18:11:01 -0700309 source = curve_data->data;
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100310 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data;
Michael Wueff1a592007-09-25 18:11:01 -0700311 for (i = 0; i < curve_data->channels; i++) {
312 __le16 *freq = source;
313 source += sizeof(__le16);
314 *((__le16 *)target) = *freq;
315 target += sizeof(__le16);
316 for (j = 0; j < curve_data->points_per_channel; j++) {
Christian Lamparter154e3af2008-08-23 22:15:25 +0200317 dst = target;
318 src = source;
Michael Wueff1a592007-09-25 18:11:01 -0700319
Christian Lamparter154e3af2008-08-23 22:15:25 +0200320 dst->rf_power = src->rf_power;
321 dst->pa_detector = src->pa_detector;
322 dst->data_64qam = src->pcv;
Michael Wueff1a592007-09-25 18:11:01 -0700323 /* "invent" the points for the other modulations */
324#define SUB(x,y) (u8)((x) - (y)) > (x) ? 0 : (x) - (y)
Christian Lamparter154e3af2008-08-23 22:15:25 +0200325 dst->data_16qam = SUB(src->pcv, 12);
326 dst->data_qpsk = SUB(dst->data_16qam, 12);
327 dst->data_bpsk = SUB(dst->data_qpsk, 12);
328 dst->data_barker = SUB(dst->data_bpsk, 14);
Michael Wueff1a592007-09-25 18:11:01 -0700329#undef SUB
Christian Lamparter154e3af2008-08-23 22:15:25 +0200330 target += sizeof(*dst);
331 source += sizeof(*src);
Michael Wueff1a592007-09-25 18:11:01 -0700332 }
333 }
334
335 return 0;
336}
337
Christian Lamparter154e3af2008-08-23 22:15:25 +0200338static int p54_convert_rev1(struct ieee80211_hw *dev,
339 struct pda_pa_curve_data *curve_data)
340{
341 struct p54_common *priv = dev->priv;
342 struct p54_pa_curve_data_sample *dst;
343 struct pda_pa_curve_data_sample_rev1 *src;
344 size_t cd_len = sizeof(*curve_data) +
345 (curve_data->points_per_channel*sizeof(*dst) + 2) *
346 curve_data->channels;
347 unsigned int i, j;
348 void *source, *target;
349
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100350 priv->curve_data = kzalloc(cd_len + sizeof(*priv->curve_data),
351 GFP_KERNEL);
Christian Lamparter154e3af2008-08-23 22:15:25 +0200352 if (!priv->curve_data)
353 return -ENOMEM;
354
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100355 priv->curve_data->entries = curve_data->channels;
356 priv->curve_data->entry_size = sizeof(__le16) +
357 sizeof(*dst) * curve_data->points_per_channel;
358 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
359 priv->curve_data->len = cd_len;
360 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
Christian Lamparter154e3af2008-08-23 22:15:25 +0200361 source = curve_data->data;
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100362 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data;
Christian Lamparter154e3af2008-08-23 22:15:25 +0200363 for (i = 0; i < curve_data->channels; i++) {
364 __le16 *freq = source;
365 source += sizeof(__le16);
366 *((__le16 *)target) = *freq;
367 target += sizeof(__le16);
368 for (j = 0; j < curve_data->points_per_channel; j++) {
369 memcpy(target, source, sizeof(*src));
370
371 target += sizeof(*dst);
372 source += sizeof(*src);
373 }
374 source++;
375 }
376
377 return 0;
378}
379
Christian Lamparter4cc683c2008-10-15 03:30:06 +0200380static const char *p54_rf_chips[] = { "NULL", "Duette3", "Duette2",
381 "Frisbee", "Xbow", "Longbow", "NULL", "NULL" };
Christian Lamparter1b997532008-09-06 14:25:58 +0200382static int p54_init_xbow_synth(struct ieee80211_hw *dev);
Christian Lamparter7cb77072008-09-01 22:48:51 +0200383
Christian Lamparter69ba3e52008-12-14 14:45:30 +0100384static void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len,
385 u16 type)
386{
387 struct p54_common *priv = dev->priv;
388 int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0;
389 int entry_size = sizeof(struct pda_rssi_cal_entry) + offset;
390 int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2;
391 int i;
392
393 if (len != (entry_size * num_entries)) {
394 printk(KERN_ERR "%s: unknown rssi calibration data packing "
395 " type:(%x) len:%d.\n",
396 wiphy_name(dev->wiphy), type, len);
397
398 print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE,
399 data, len);
400
401 printk(KERN_ERR "%s: please report this issue.\n",
402 wiphy_name(dev->wiphy));
403 return;
404 }
405
406 for (i = 0; i < num_entries; i++) {
407 struct pda_rssi_cal_entry *cal = data +
408 (offset + i * entry_size);
409 priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul);
410 priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add);
411 }
412}
413
Christian Lamparter98a8d1a2008-12-26 21:50:33 +0100414static void p54_parse_default_country(struct ieee80211_hw *dev,
415 void *data, int len)
416{
417 struct pda_country *country;
418
419 if (len != sizeof(*country)) {
420 printk(KERN_ERR "%s: found possible invalid default country "
421 "eeprom entry. (entry size: %d)\n",
422 wiphy_name(dev->wiphy), len);
423
424 print_hex_dump_bytes("country:", DUMP_PREFIX_NONE,
425 data, len);
426
427 printk(KERN_ERR "%s: please report this issue.\n",
428 wiphy_name(dev->wiphy));
429 return;
430 }
431
432 country = (struct pda_country *) data;
433 if (country->flags == PDR_COUNTRY_CERT_CODE_PSEUDO)
434 regulatory_hint(dev->wiphy, country->alpha2);
435 else {
436 /* TODO:
437 * write a shared/common function that converts
438 * "Regulatory domain codes" (802.11-2007 14.8.2.2)
439 * into ISO/IEC 3166-1 alpha2 for regulatory_hint.
440 */
441 }
442}
443
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100444static int p54_convert_output_limits(struct ieee80211_hw *dev,
445 u8 *data, size_t len)
446{
447 struct p54_common *priv = dev->priv;
448
449 if (len < 2)
450 return -EINVAL;
451
452 if (data[0] != 0) {
453 printk(KERN_ERR "%s: unknown output power db revision:%x\n",
454 wiphy_name(dev->wiphy), data[0]);
455 return -EINVAL;
456 }
457
458 if (2 + data[1] * sizeof(struct pda_channel_output_limit) > len)
459 return -EINVAL;
460
461 priv->output_limit = kmalloc(data[1] *
462 sizeof(struct pda_channel_output_limit) +
463 sizeof(*priv->output_limit), GFP_KERNEL);
464
465 if (!priv->output_limit)
466 return -ENOMEM;
467
468 priv->output_limit->offset = 0;
469 priv->output_limit->entries = data[1];
470 priv->output_limit->entry_size =
471 sizeof(struct pda_channel_output_limit);
472 priv->output_limit->len = priv->output_limit->entry_size *
473 priv->output_limit->entries +
474 priv->output_limit->offset;
475
476 memcpy(priv->output_limit->data, &data[2],
477 data[1] * sizeof(struct pda_channel_output_limit));
478
479 return 0;
480}
481
482static struct p54_cal_database *p54_convert_db(struct pda_custom_wrapper *src,
483 size_t total_len)
484{
485 struct p54_cal_database *dst;
486 size_t payload_len, entries, entry_size, offset;
487
488 payload_len = le16_to_cpu(src->len);
489 entries = le16_to_cpu(src->entries);
490 entry_size = le16_to_cpu(src->entry_size);
491 offset = le16_to_cpu(src->offset);
492 if (((entries * entry_size + offset) != payload_len) ||
493 (payload_len + sizeof(*src) != total_len))
494 return NULL;
495
496 dst = kmalloc(sizeof(*dst) + payload_len, GFP_KERNEL);
497 if (!dst)
498 return NULL;
499
500 dst->entries = entries;
501 dst->entry_size = entry_size;
502 dst->offset = offset;
503 dst->len = payload_len;
504
505 memcpy(dst->data, src->data, payload_len);
506 return dst;
507}
508
Christian Lampartercd8d3d32009-01-11 01:18:38 +0100509int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
Michael Wueff1a592007-09-25 18:11:01 -0700510{
511 struct p54_common *priv = dev->priv;
512 struct eeprom_pda_wrap *wrap = NULL;
513 struct pda_entry *entry;
Michael Wueff1a592007-09-25 18:11:01 -0700514 unsigned int data_len, entry_len;
515 void *tmp;
516 int err;
Johannes Bergc2f2d3a2008-02-29 23:28:25 +0100517 u8 *end = (u8 *)eeprom + len;
Christian Lamparterf2c2e252008-10-25 16:14:14 +0200518 u16 synth = 0;
Michael Wueff1a592007-09-25 18:11:01 -0700519
520 wrap = (struct eeprom_pda_wrap *) eeprom;
Johannes Berg8c282932008-02-29 13:56:33 +0100521 entry = (void *)wrap->data + le16_to_cpu(wrap->len);
Johannes Bergc2f2d3a2008-02-29 23:28:25 +0100522
523 /* verify that at least the entry length/code fits */
524 while ((u8 *)entry <= end - sizeof(*entry)) {
Michael Wueff1a592007-09-25 18:11:01 -0700525 entry_len = le16_to_cpu(entry->len);
526 data_len = ((entry_len - 1) << 1);
Johannes Bergc2f2d3a2008-02-29 23:28:25 +0100527
528 /* abort if entry exceeds whole structure */
529 if ((u8 *)entry + sizeof(*entry) + data_len > end)
530 break;
531
Michael Wueff1a592007-09-25 18:11:01 -0700532 switch (le16_to_cpu(entry->code)) {
533 case PDR_MAC_ADDRESS:
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100534 if (data_len != ETH_ALEN)
535 break;
Michael Wueff1a592007-09-25 18:11:01 -0700536 SET_IEEE80211_PERM_ADDR(dev, entry->data);
537 break;
538 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS:
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100539 if (priv->output_limit)
540 break;
541 err = p54_convert_output_limits(dev, entry->data,
542 data_len);
543 if (err)
Michael Wueff1a592007-09-25 18:11:01 -0700544 goto err;
Michael Wueff1a592007-09-25 18:11:01 -0700545 break;
Christian Lamparter154e3af2008-08-23 22:15:25 +0200546 case PDR_PRISM_PA_CAL_CURVE_DATA: {
547 struct pda_pa_curve_data *curve_data =
548 (struct pda_pa_curve_data *)entry->data;
549 if (data_len < sizeof(*curve_data)) {
Michael Wueff1a592007-09-25 18:11:01 -0700550 err = -EINVAL;
551 goto err;
552 }
553
Christian Lamparter154e3af2008-08-23 22:15:25 +0200554 switch (curve_data->cal_method_rev) {
555 case 0:
556 err = p54_convert_rev0(dev, curve_data);
557 break;
558 case 1:
559 err = p54_convert_rev1(dev, curve_data);
560 break;
561 default:
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100562 printk(KERN_ERR "%s: unknown curve data "
Christian Lamparter154e3af2008-08-23 22:15:25 +0200563 "revision %d\n",
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100564 wiphy_name(dev->wiphy),
Christian Lamparter154e3af2008-08-23 22:15:25 +0200565 curve_data->cal_method_rev);
566 err = -ENODEV;
567 break;
Michael Wueff1a592007-09-25 18:11:01 -0700568 }
Christian Lamparter154e3af2008-08-23 22:15:25 +0200569 if (err)
570 goto err;
Chr40ab73c2009-01-19 14:30:26 +0100571 }
572 break;
Michael Wueff1a592007-09-25 18:11:01 -0700573 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
574 priv->iq_autocal = kmalloc(data_len, GFP_KERNEL);
575 if (!priv->iq_autocal) {
576 err = -ENOMEM;
577 goto err;
578 }
579
580 memcpy(priv->iq_autocal, entry->data, data_len);
581 priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry);
582 break;
Christian Lamparter98a8d1a2008-12-26 21:50:33 +0100583 case PDR_DEFAULT_COUNTRY:
584 p54_parse_default_country(dev, entry->data, data_len);
585 break;
Michael Wueff1a592007-09-25 18:11:01 -0700586 case PDR_INTERFACE_LIST:
587 tmp = entry->data;
588 while ((u8 *)tmp < entry->data + data_len) {
589 struct bootrec_exp_if *exp_if = tmp;
Christian Lamparter4cc683c2008-10-15 03:30:06 +0200590 if (le16_to_cpu(exp_if->if_id) == 0xf)
591 synth = le16_to_cpu(exp_if->variant);
Michael Wueff1a592007-09-25 18:11:01 -0700592 tmp += sizeof(struct bootrec_exp_if);
593 }
594 break;
595 case PDR_HARDWARE_PLATFORM_COMPONENT_ID:
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100596 if (data_len < 2)
597 break;
Michael Wueff1a592007-09-25 18:11:01 -0700598 priv->version = *(u8 *)(entry->data + 1);
599 break;
Christian Lamparter69ba3e52008-12-14 14:45:30 +0100600 case PDR_RSSI_LINEAR_APPROXIMATION:
601 case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND:
602 case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED:
603 p54_parse_rssical(dev, entry->data, data_len,
604 le16_to_cpu(entry->code));
605 break;
Christian Lamparter83cf1b62009-01-11 01:10:33 +0100606 case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM: {
607 __le16 *src = (void *) entry->data;
608 s16 *dst = (void *) &priv->rssical_db;
609 int i;
610
611 if (data_len != sizeof(priv->rssical_db)) {
612 err = -EINVAL;
613 goto err;
614 }
615 for (i = 0; i < sizeof(priv->rssical_db) /
616 sizeof(*src); i++)
617 *(dst++) = (s16) le16_to_cpu(*(src++));
618 }
619 break;
620 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM: {
621 struct pda_custom_wrapper *pda = (void *) entry->data;
622 if (priv->output_limit || data_len < sizeof(*pda))
623 break;
624 priv->output_limit = p54_convert_db(pda, data_len);
625 }
626 break;
627 case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM: {
628 struct pda_custom_wrapper *pda = (void *) entry->data;
629 if (priv->curve_data || data_len < sizeof(*pda))
630 break;
631 priv->curve_data = p54_convert_db(pda, data_len);
632 }
633 break;
Michael Wueff1a592007-09-25 18:11:01 -0700634 case PDR_END:
Johannes Bergc2f2d3a2008-02-29 23:28:25 +0100635 /* make it overrun */
636 entry_len = len;
Michael Wueff1a592007-09-25 18:11:01 -0700637 break;
Pavel Roskinc8034c42008-10-29 17:31:43 -0400638 case PDR_MANUFACTURING_PART_NUMBER:
639 case PDR_PDA_VERSION:
640 case PDR_NIC_SERIAL_NUMBER:
641 case PDR_REGULATORY_DOMAIN_LIST:
642 case PDR_TEMPERATURE_TYPE:
643 case PDR_PRISM_PCI_IDENTIFIER:
644 case PDR_COUNTRY_INFORMATION:
645 case PDR_OEM_NAME:
646 case PDR_PRODUCT_NAME:
647 case PDR_UTF8_OEM_NAME:
648 case PDR_UTF8_PRODUCT_NAME:
649 case PDR_COUNTRY_LIST:
Pavel Roskinc8034c42008-10-29 17:31:43 -0400650 case PDR_ANTENNA_GAIN:
651 case PDR_PRISM_INDIGO_PA_CALIBRATION_DATA:
Pavel Roskinc8034c42008-10-29 17:31:43 -0400652 case PDR_REGULATORY_POWER_LIMITS:
Pavel Roskinc8034c42008-10-29 17:31:43 -0400653 case PDR_RADIATED_TRANSMISSION_CORRECTION:
654 case PDR_PRISM_TX_IQ_CALIBRATION:
655 case PDR_BASEBAND_REGISTERS:
656 case PDR_PER_CHANNEL_BASEBAND_REGISTERS:
657 break;
Florian Fainelli58e30732008-02-25 17:51:53 +0100658 default:
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100659 printk(KERN_INFO "%s: unknown eeprom code : 0x%x\n",
660 wiphy_name(dev->wiphy),
Florian Fainelli58e30732008-02-25 17:51:53 +0100661 le16_to_cpu(entry->code));
662 break;
Michael Wueff1a592007-09-25 18:11:01 -0700663 }
664
665 entry = (void *)entry + (entry_len + 1)*2;
Michael Wueff1a592007-09-25 18:11:01 -0700666 }
667
Christian Lamparterf2c2e252008-10-25 16:14:14 +0200668 if (!synth || !priv->iq_autocal || !priv->output_limit ||
669 !priv->curve_data) {
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100670 printk(KERN_ERR "%s: not all required entries found in eeprom!\n",
671 wiphy_name(dev->wiphy));
Michael Wueff1a592007-09-25 18:11:01 -0700672 err = -EINVAL;
673 goto err;
674 }
675
Christian Lamparter9e7f3f82008-10-18 23:18:01 +0200676 priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
Christian Lamparter6917f502009-01-11 01:14:18 +0100677 if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW)
Christian Lamparter1b997532008-09-06 14:25:58 +0200678 p54_init_xbow_synth(dev);
Christian Lamparter9e7f3f82008-10-18 23:18:01 +0200679 if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
Christian Lamparter1b997532008-09-06 14:25:58 +0200680 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
Christian Lamparter9e7f3f82008-10-18 23:18:01 +0200681 if (!(synth & PDR_SYNTH_5_GHZ_DISABLED))
Christian Lamparter4cc683c2008-10-15 03:30:06 +0200682 dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz;
Christian Lamparter78eb7482008-12-30 13:48:19 +0100683 if ((synth & PDR_SYNTH_RX_DIV_MASK) == PDR_SYNTH_RX_DIV_SUPPORTED)
684 priv->rx_diversity_mask = 3;
685 if ((synth & PDR_SYNTH_TX_DIV_MASK) == PDR_SYNTH_TX_DIV_SUPPORTED)
686 priv->tx_diversity_mask = 3;
Christian Lamparter7cb77072008-09-01 22:48:51 +0200687
688 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
689 u8 perm_addr[ETH_ALEN];
690
691 printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n",
692 wiphy_name(dev->wiphy));
693 random_ether_addr(perm_addr);
694 SET_IEEE80211_PERM_ADDR(dev, perm_addr);
695 }
696
Johannes Berge1749612008-10-27 15:59:26 -0700697 printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n",
Christian Lamparter7cb77072008-09-01 22:48:51 +0200698 wiphy_name(dev->wiphy),
Johannes Berge1749612008-10-27 15:59:26 -0700699 dev->wiphy->perm_addr,
Christian Lamparter7cb77072008-09-01 22:48:51 +0200700 priv->version, p54_rf_chips[priv->rxhw]);
701
Michael Wueff1a592007-09-25 18:11:01 -0700702 return 0;
703
704 err:
705 if (priv->iq_autocal) {
706 kfree(priv->iq_autocal);
707 priv->iq_autocal = NULL;
708 }
709
710 if (priv->output_limit) {
711 kfree(priv->output_limit);
712 priv->output_limit = NULL;
713 }
714
715 if (priv->curve_data) {
716 kfree(priv->curve_data);
717 priv->curve_data = NULL;
718 }
719
Christian Lamparter02e37ba2008-11-29 22:39:08 +0100720 printk(KERN_ERR "%s: eeprom parse failed!\n",
721 wiphy_name(dev->wiphy));
Michael Wueff1a592007-09-25 18:11:01 -0700722 return err;
723}
Christian Lampartercd8d3d32009-01-11 01:18:38 +0100724EXPORT_SYMBOL_GPL(p54_parse_eeprom);
Michael Wueff1a592007-09-25 18:11:01 -0700725
Christian Lampartercc6de662008-09-06 02:56:23 +0200726static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi)
727{
Christian Lamparter69ba3e52008-12-14 14:45:30 +0100728 struct p54_common *priv = dev->priv;
729 int band = dev->conf.channel->band;
730
Christian Lamparter6917f502009-01-11 01:14:18 +0100731 if (priv->rxhw != PDR_SYNTH_FRONTEND_LONGBOW)
732 return ((rssi * priv->rssical_db[band].mul) / 64 +
733 priv->rssical_db[band].add) / 4;
734 else
735 /*
736 * TODO: find the correct formula
737 */
738 return ((rssi * priv->rssical_db[band].mul) / 64 +
Christian Lamparter69ba3e52008-12-14 14:45:30 +0100739 priv->rssical_db[band].add) / 4;
Christian Lampartercc6de662008-09-06 02:56:23 +0200740}
741
Christian Lamparter19c19d52008-09-03 22:25:25 +0200742static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
Michael Wueff1a592007-09-25 18:11:01 -0700743{
Christian Lampartera0db6632008-09-06 02:56:04 +0200744 struct p54_common *priv = dev->priv;
John W. Linville27df6052008-10-22 16:41:55 -0400745 struct p54_rx_data *hdr = (struct p54_rx_data *) skb->data;
Michael Wueff1a592007-09-25 18:11:01 -0700746 struct ieee80211_rx_status rx_status = {0};
747 u16 freq = le16_to_cpu(hdr->freq);
Christian Lamparter19c19d52008-09-03 22:25:25 +0200748 size_t header_len = sizeof(*hdr);
Christian Lampartera0db6632008-09-06 02:56:04 +0200749 u32 tsf32;
Christian Lamparter124b68e2008-12-26 19:09:45 +0100750 u8 rate = hdr->rate & 0xf;
Michael Wueff1a592007-09-25 18:11:01 -0700751
Christian Lamparter59651e82008-12-09 21:07:50 +0100752 /*
753 * If the device is in a unspecified state we have to
754 * ignore all data frames. Else we could end up with a
755 * nasty crash.
756 */
757 if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
758 return 0;
759
John W. Linville27df6052008-10-22 16:41:55 -0400760 if (!(hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD))) {
Christian Lamparter346de732009-03-05 21:28:57 +0100761 return 0;
Christian Lamparter78d57eb2008-09-06 02:56:12 +0200762 }
763
Christian Lamparter25900ef2008-11-29 22:34:37 +0100764 if (hdr->decrypt_status == P54_DECRYPT_OK)
765 rx_status.flag |= RX_FLAG_DECRYPTED;
766 if ((hdr->decrypt_status == P54_DECRYPT_FAIL_MICHAEL) ||
767 (hdr->decrypt_status == P54_DECRYPT_FAIL_TKIP))
768 rx_status.flag |= RX_FLAG_MMIC_ERROR;
769
Christian Lampartercc6de662008-09-06 02:56:23 +0200770 rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi);
771 rx_status.noise = priv->noise;
Christian Lamparterffed7852008-11-14 19:41:22 +0100772 if (hdr->rate & 0x10)
773 rx_status.flag |= RX_FLAG_SHORTPRE;
Christian Lamparter124b68e2008-12-26 19:09:45 +0100774 if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
775 rx_status.rate_idx = (rate < 4) ? 0 : rate - 4;
776 else
777 rx_status.rate_idx = rate;
778
Michael Wueff1a592007-09-25 18:11:01 -0700779 rx_status.freq = freq;
Christian Lampartercf3e74c2008-09-30 23:36:00 +0200780 rx_status.band = dev->conf.channel->band;
Michael Wueff1a592007-09-25 18:11:01 -0700781 rx_status.antenna = hdr->antenna;
Christian Lampartera0db6632008-09-06 02:56:04 +0200782
783 tsf32 = le32_to_cpu(hdr->tsf32);
784 if (tsf32 < priv->tsf_low32)
785 priv->tsf_high32++;
786 rx_status.mactime = ((u64)priv->tsf_high32) << 32 | tsf32;
787 priv->tsf_low32 = tsf32;
788
Johannes Berg03bffc12007-12-04 20:33:40 +0100789 rx_status.flag |= RX_FLAG_TSFT;
Michael Wueff1a592007-09-25 18:11:01 -0700790
John W. Linville27df6052008-10-22 16:41:55 -0400791 if (hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
Christian Lamparter19c19d52008-09-03 22:25:25 +0200792 header_len += hdr->align[0];
793
794 skb_pull(skb, header_len);
Michael Wueff1a592007-09-25 18:11:01 -0700795 skb_trim(skb, le16_to_cpu(hdr->len));
796
797 ieee80211_rx_irqsafe(dev, skb, &rx_status);
Christian Lamparter19c19d52008-09-03 22:25:25 +0200798
Christian Lamparter54fdb042008-12-13 14:14:20 +0100799 queue_delayed_work(dev->workqueue, &priv->work,
800 msecs_to_jiffies(P54_STATISTICS_UPDATE));
801
Christian Lamparter19c19d52008-09-03 22:25:25 +0200802 return -1;
Michael Wueff1a592007-09-25 18:11:01 -0700803}
804
805static void inline p54_wake_free_queues(struct ieee80211_hw *dev)
806{
807 struct p54_common *priv = dev->priv;
808 int i;
809
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200810 if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
811 return ;
812
Michael Wueff1a592007-09-25 18:11:01 -0700813 for (i = 0; i < dev->queues; i++)
Christian Lampartera15bd002008-12-21 20:54:34 +0100814 if (priv->tx_stats[i + P54_QUEUE_DATA].len <
815 priv->tx_stats[i + P54_QUEUE_DATA].limit)
Michael Wueff1a592007-09-25 18:11:01 -0700816 ieee80211_wake_queue(dev, i);
817}
818
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200819void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb)
820{
821 struct p54_common *priv = dev->priv;
822 struct ieee80211_tx_info *info;
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100823 struct p54_tx_info *range;
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200824 unsigned long flags;
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200825
David S. Millera1091aa2009-05-28 00:48:16 -0700826 if (unlikely(!skb || !dev || skb_queue_empty(&priv->tx_queue)))
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200827 return;
828
David S. Millera1091aa2009-05-28 00:48:16 -0700829 /* There used to be a check here to see if the SKB was on the
830 * TX queue or not. This can never happen because all SKBs we
831 * see here successfully went through p54_assign_address()
832 * which means the SKB is on the ->tx_queue.
Christian Lamparter59651e82008-12-09 21:07:50 +0100833 */
Christian Lamparter59651e82008-12-09 21:07:50 +0100834
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200835 spin_lock_irqsave(&priv->tx_queue.lock, flags);
836 info = IEEE80211_SKB_CB(skb);
837 range = (void *)info->rate_driver_data;
David S. Millera1091aa2009-05-28 00:48:16 -0700838 if (!skb_queue_is_first(&priv->tx_queue, skb)) {
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200839 struct ieee80211_tx_info *ni;
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100840 struct p54_tx_info *mr;
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200841
David S. Millera1091aa2009-05-28 00:48:16 -0700842 ni = IEEE80211_SKB_CB(skb_queue_prev(&priv->tx_queue, skb));
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100843 mr = (struct p54_tx_info *)ni->rate_driver_data;
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200844 }
David S. Millera1091aa2009-05-28 00:48:16 -0700845 if (!skb_queue_is_last(&priv->tx_queue, skb)) {
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200846 struct ieee80211_tx_info *ni;
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100847 struct p54_tx_info *mr;
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200848
David S. Millera1091aa2009-05-28 00:48:16 -0700849 ni = IEEE80211_SKB_CB(skb_queue_next(&priv->tx_queue, skb));
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100850 mr = (struct p54_tx_info *)ni->rate_driver_data;
Max Filippov7c5a1892009-05-06 01:47:02 +0400851 }
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200852 __skb_unlink(skb, &priv->tx_queue);
853 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
Christian Lamparter0a5ec962008-12-14 15:05:42 +0100854 dev_kfree_skb_any(skb);
Max Filippov7c5a1892009-05-06 01:47:02 +0400855 p54_wake_free_queues(dev);
Christian Lamparterb92f30d2008-10-15 04:07:16 +0200856}
857EXPORT_SYMBOL_GPL(p54_free_skb);
858
Christian Lamparter54fdb042008-12-13 14:14:20 +0100859static struct sk_buff *p54_find_tx_entry(struct ieee80211_hw *dev,
860 __le32 req_id)
861{
862 struct p54_common *priv = dev->priv;
Christian Lamparterc0350022009-03-06 00:53:59 +0100863 struct sk_buff *entry;
Christian Lamparter54fdb042008-12-13 14:14:20 +0100864 unsigned long flags;
865
866 spin_lock_irqsave(&priv->tx_queue.lock, flags);
David S. Millera1091aa2009-05-28 00:48:16 -0700867 skb_queue_walk(&priv->tx_queue, entry) {
Christian Lamparter54fdb042008-12-13 14:14:20 +0100868 struct p54_hdr *hdr = (struct p54_hdr *) entry->data;
869
870 if (hdr->req_id == req_id) {
871 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
872 return entry;
873 }
Christian Lamparter54fdb042008-12-13 14:14:20 +0100874 }
875 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
876 return NULL;
877}
878
Michael Wueff1a592007-09-25 18:11:01 -0700879static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
880{
881 struct p54_common *priv = dev->priv;
John W. Linville27df6052008-10-22 16:41:55 -0400882 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
883 struct p54_frame_sent *payload = (struct p54_frame_sent *) hdr->data;
Christian Lamparterc0350022009-03-06 00:53:59 +0100884 struct sk_buff *entry;
Christian Lamparter4e416a62008-09-01 22:48:41 +0200885 u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom;
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100886 struct p54_tx_info *range = NULL;
Chr031d10e2008-08-24 03:15:06 +0200887 unsigned long flags;
Johannes Bergc12abae2008-10-14 16:56:51 +0200888 int count, idx;
Michael Wueff1a592007-09-25 18:11:01 -0700889
Chr031d10e2008-08-24 03:15:06 +0200890 spin_lock_irqsave(&priv->tx_queue.lock, flags);
David S. Millera1091aa2009-05-28 00:48:16 -0700891 skb_queue_walk(&priv->tx_queue, entry) {
Johannes Berg552fe532008-05-30 21:07:15 +0200892 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
John W. Linville27df6052008-10-22 16:41:55 -0400893 struct p54_hdr *entry_hdr;
894 struct p54_tx_data *entry_data;
Christian Lamparter12da4012009-01-19 16:08:48 +0100895 unsigned int pad = 0, frame_len;
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200896
Johannes Berge6a98542008-10-21 12:40:02 +0200897 range = (void *)info->rate_driver_data;
David S. Millera1091aa2009-05-28 00:48:16 -0700898 if (range->start_addr != addr)
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200899 continue;
Chr031d10e2008-08-24 03:15:06 +0200900
David S. Millera1091aa2009-05-28 00:48:16 -0700901 if (!skb_queue_is_last(&priv->tx_queue, entry)) {
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200902 struct ieee80211_tx_info *ni;
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100903 struct p54_tx_info *mr;
Johannes Bergc12abae2008-10-14 16:56:51 +0200904
David S. Millera1091aa2009-05-28 00:48:16 -0700905 ni = IEEE80211_SKB_CB(skb_queue_next(&priv->tx_queue,
906 entry));
Christian Lamparter3cd08b32009-01-09 21:06:06 +0100907 mr = (struct p54_tx_info *)ni->rate_driver_data;
Max Filippov7c5a1892009-05-06 01:47:02 +0400908 }
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200909
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200910 __skb_unlink(entry, &priv->tx_queue);
911 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
912
Christian Lamparter12da4012009-01-19 16:08:48 +0100913 frame_len = entry->len;
Christian Lamparterc772a082008-11-29 22:33:57 +0100914 entry_hdr = (struct p54_hdr *) entry->data;
915 entry_data = (struct p54_tx_data *) entry_hdr->data;
916 priv->tx_stats[entry_data->hw_queue].len--;
Christian Lamparteree370ce2008-12-13 16:45:38 +0100917 priv->stats.dot11ACKFailureCount += payload->tries - 1;
Christian Lamparterc772a082008-11-29 22:33:57 +0100918
Christian Lamparter29701e52008-12-21 22:52:10 +0100919 /*
920 * Frames in P54_QUEUE_FWSCAN and P54_QUEUE_BEACON are
921 * generated by the driver. Therefore tx_status is bogus
922 * and we don't want to confuse the mac80211 stack.
923 */
924 if (unlikely(entry_data->hw_queue < P54_QUEUE_FWSCAN)) {
925 if (entry_data->hw_queue == P54_QUEUE_BEACON)
926 priv->cached_beacon = NULL;
927
Christian Lampartere5ea92a2008-10-18 23:19:00 +0200928 kfree_skb(entry);
Christian Lampartere5ea92a2008-10-18 23:19:00 +0200929 goto out;
930 }
931
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200932 /*
933 * Clear manually, ieee80211_tx_info_clear_status would
934 * clear the counts too and we need them.
935 */
936 memset(&info->status.ampdu_ack_len, 0,
937 sizeof(struct ieee80211_tx_info) -
938 offsetof(struct ieee80211_tx_info, status.ampdu_ack_len));
939 BUILD_BUG_ON(offsetof(struct ieee80211_tx_info,
940 status.ampdu_ack_len) != 23);
941
John W. Linville27df6052008-10-22 16:41:55 -0400942 if (entry_hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200943 pad = entry_data->align[0];
944
945 /* walk through the rates array and adjust the counts */
John W. Linville27df6052008-10-22 16:41:55 -0400946 count = payload->tries;
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200947 for (idx = 0; idx < 4; idx++) {
948 if (count >= info->status.rates[idx].count) {
949 count -= info->status.rates[idx].count;
950 } else if (count > 0) {
951 info->status.rates[idx].count = count;
952 count = 0;
953 } else {
954 info->status.rates[idx].idx = -1;
955 info->status.rates[idx].count = 0;
956 }
957 }
958
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200959 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
960 (!payload->status))
961 info->flags |= IEEE80211_TX_STAT_ACK;
Christian Lamparter9e7f3f82008-10-18 23:18:01 +0200962 if (payload->status & P54_TX_PSM_CANCELLED)
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200963 info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
964 info->status.ack_signal = p54_rssi_to_dbm(dev,
John W. Linville27df6052008-10-22 16:41:55 -0400965 (int)payload->ack_rssi);
Christian Lamparterc1d34c12008-12-20 02:21:37 +0100966
Christian Lamparter12da4012009-01-19 16:08:48 +0100967 /* Undo all changes to the frame. */
968 switch (entry_data->key_type) {
969 case P54_CRYPTO_TKIPMICHAEL: {
Christian Lamparterc1d34c12008-12-20 02:21:37 +0100970 u8 *iv = (u8 *)(entry_data->align + pad +
Christian Lamparter12da4012009-01-19 16:08:48 +0100971 entry_data->crypt_offset);
Christian Lamparterc1d34c12008-12-20 02:21:37 +0100972
973 /* Restore the original TKIP IV. */
974 iv[2] = iv[0];
975 iv[0] = iv[1];
976 iv[1] = (iv[0] | 0x20) & 0x7f; /* WEPSeed - 8.3.2.2 */
Christian Lamparter12da4012009-01-19 16:08:48 +0100977
978 frame_len -= 12; /* remove TKIP_MMIC + TKIP_ICV */
979 break;
980 }
981 case P54_CRYPTO_AESCCMP:
982 frame_len -= 8; /* remove CCMP_MIC */
983 break;
984 case P54_CRYPTO_WEP:
985 frame_len -= 4; /* remove WEP_ICV */
986 break;
Christian Lamparterc1d34c12008-12-20 02:21:37 +0100987 }
Christian Lamparter12da4012009-01-19 16:08:48 +0100988 skb_trim(entry, frame_len);
Christian Lamparter9de5776f2008-10-15 04:05:51 +0200989 skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
990 ieee80211_tx_status_irqsafe(dev, entry);
991 goto out;
Michael Wueff1a592007-09-25 18:11:01 -0700992 }
Chr031d10e2008-08-24 03:15:06 +0200993 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
Michael Wueff1a592007-09-25 18:11:01 -0700994
Chr031d10e2008-08-24 03:15:06 +0200995out:
Max Filippov7c5a1892009-05-06 01:47:02 +0400996 p54_wake_free_queues(dev);
Michael Wueff1a592007-09-25 18:11:01 -0700997}
998
Christian Lamparter7cb77072008-09-01 22:48:51 +0200999static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
1000 struct sk_buff *skb)
1001{
John W. Linville27df6052008-10-22 16:41:55 -04001002 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
Christian Lamparter7cb77072008-09-01 22:48:51 +02001003 struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data;
1004 struct p54_common *priv = dev->priv;
1005
1006 if (!priv->eeprom)
1007 return ;
1008
Christian Lamparter64c354d2008-11-29 22:35:43 +01001009 if (priv->fw_var >= 0x509) {
1010 memcpy(priv->eeprom, eeprom->v2.data,
1011 le16_to_cpu(eeprom->v2.len));
1012 } else {
1013 memcpy(priv->eeprom, eeprom->v1.data,
1014 le16_to_cpu(eeprom->v1.len));
1015 }
Christian Lamparter7cb77072008-09-01 22:48:51 +02001016
1017 complete(&priv->eeprom_comp);
1018}
1019
Christian Lampartercc6de662008-09-06 02:56:23 +02001020static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb)
1021{
1022 struct p54_common *priv = dev->priv;
John W. Linville27df6052008-10-22 16:41:55 -04001023 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
Christian Lampartercc6de662008-09-06 02:56:23 +02001024 struct p54_statistics *stats = (struct p54_statistics *) hdr->data;
Christian Lamparter54fdb042008-12-13 14:14:20 +01001025 u32 tsf32;
Christian Lampartercc6de662008-09-06 02:56:23 +02001026
Christian Lamparter54fdb042008-12-13 14:14:20 +01001027 if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
1028 return ;
1029
1030 tsf32 = le32_to_cpu(stats->tsf32);
Christian Lampartercc6de662008-09-06 02:56:23 +02001031 if (tsf32 < priv->tsf_low32)
1032 priv->tsf_high32++;
1033 priv->tsf_low32 = tsf32;
1034
1035 priv->stats.dot11RTSFailureCount = le32_to_cpu(stats->rts_fail);
1036 priv->stats.dot11RTSSuccessCount = le32_to_cpu(stats->rts_success);
1037 priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs);
1038
1039 priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise));
Christian Lampartercc6de662008-09-06 02:56:23 +02001040
Christian Lamparter54fdb042008-12-13 14:14:20 +01001041 p54_free_skb(dev, p54_find_tx_entry(dev, hdr->req_id));
Christian Lampartercc6de662008-09-06 02:56:23 +02001042}
1043
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001044static void p54_rx_trap(struct ieee80211_hw *dev, struct sk_buff *skb)
1045{
Christian Lamparterf13027a2009-03-25 03:12:49 +01001046 struct p54_common *priv = dev->priv;
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001047 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
1048 struct p54_trap *trap = (struct p54_trap *) hdr->data;
1049 u16 event = le16_to_cpu(trap->event);
1050 u16 freq = le16_to_cpu(trap->frequency);
1051
1052 switch (event) {
1053 case P54_TRAP_BEACON_TX:
1054 break;
1055 case P54_TRAP_RADAR:
1056 printk(KERN_INFO "%s: radar (freq:%d MHz)\n",
1057 wiphy_name(dev->wiphy), freq);
1058 break;
1059 case P54_TRAP_NO_BEACON:
Christian Lamparterf13027a2009-03-25 03:12:49 +01001060 if (priv->vif)
1061 ieee80211_beacon_loss(priv->vif);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001062 break;
1063 case P54_TRAP_SCAN:
1064 break;
1065 case P54_TRAP_TBTT:
1066 break;
1067 case P54_TRAP_TIMER:
1068 break;
1069 default:
1070 printk(KERN_INFO "%s: received event:%x freq:%d\n",
1071 wiphy_name(dev->wiphy), event, freq);
1072 break;
1073 }
1074}
1075
Christian Lamparter19c19d52008-09-03 22:25:25 +02001076static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
Michael Wueff1a592007-09-25 18:11:01 -07001077{
John W. Linville27df6052008-10-22 16:41:55 -04001078 struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
Michael Wueff1a592007-09-25 18:11:01 -07001079
1080 switch (le16_to_cpu(hdr->type)) {
1081 case P54_CONTROL_TYPE_TXDONE:
1082 p54_rx_frame_sent(dev, skb);
1083 break;
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001084 case P54_CONTROL_TYPE_TRAP:
1085 p54_rx_trap(dev, skb);
1086 break;
Michael Wueff1a592007-09-25 18:11:01 -07001087 case P54_CONTROL_TYPE_BBP:
1088 break;
Christian Lampartercc6de662008-09-06 02:56:23 +02001089 case P54_CONTROL_TYPE_STAT_READBACK:
1090 p54_rx_stats(dev, skb);
1091 break;
Christian Lamparter7cb77072008-09-01 22:48:51 +02001092 case P54_CONTROL_TYPE_EEPROM_READBACK:
1093 p54_rx_eeprom_readback(dev, skb);
1094 break;
Michael Wueff1a592007-09-25 18:11:01 -07001095 default:
1096 printk(KERN_DEBUG "%s: not handling 0x%02x type control frame\n",
1097 wiphy_name(dev->wiphy), le16_to_cpu(hdr->type));
1098 break;
1099 }
Christian Lamparter19c19d52008-09-03 22:25:25 +02001100
1101 return 0;
Michael Wueff1a592007-09-25 18:11:01 -07001102}
1103
1104/* returns zero if skb can be reused */
1105int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb)
1106{
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02001107 u16 type = le16_to_cpu(*((__le16 *)skb->data));
Christian Lamparter19c19d52008-09-03 22:25:25 +02001108
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02001109 if (type & P54_HDR_FLAG_CONTROL)
Christian Lamparter19c19d52008-09-03 22:25:25 +02001110 return p54_rx_control(dev, skb);
1111 else
1112 return p54_rx_data(dev, skb);
Michael Wueff1a592007-09-25 18:11:01 -07001113}
1114EXPORT_SYMBOL_GPL(p54_rx);
1115
1116/*
1117 * So, the firmware is somewhat stupid and doesn't know what places in its
1118 * memory incoming data should go to. By poking around in the firmware, we
1119 * can find some unused memory to upload our packets to. However, data that we
1120 * want the card to TX needs to stay intact until the card has told us that
1121 * it is done with it. This function finds empty places we can upload to and
Christian Lamparter3cd08b32009-01-09 21:06:06 +01001122 * marks allocated areas as reserved if necessary. p54_rx_frame_sent or
1123 * p54_free_skb frees allocated areas.
Michael Wueff1a592007-09-25 18:11:01 -07001124 */
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001125static int p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
John W. Linville27df6052008-10-22 16:41:55 -04001126 struct p54_hdr *data, u32 len)
Michael Wueff1a592007-09-25 18:11:01 -07001127{
1128 struct p54_common *priv = dev->priv;
Christian Lamparterc0350022009-03-06 00:53:59 +01001129 struct sk_buff *entry;
Michael Wueff1a592007-09-25 18:11:01 -07001130 struct sk_buff *target_skb = NULL;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001131 struct ieee80211_tx_info *info;
Christian Lamparter3cd08b32009-01-09 21:06:06 +01001132 struct p54_tx_info *range;
Michael Wueff1a592007-09-25 18:11:01 -07001133 u32 last_addr = priv->rx_start;
1134 u32 largest_hole = 0;
1135 u32 target_addr = priv->rx_start;
1136 unsigned long flags;
1137 unsigned int left;
Christian Lamparter4e416a62008-09-01 22:48:41 +02001138 len = (len + priv->headroom + priv->tailroom + 3) & ~0x3;
Michael Wueff1a592007-09-25 18:11:01 -07001139
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001140 if (!skb)
1141 return -EINVAL;
1142
Michael Wueff1a592007-09-25 18:11:01 -07001143 spin_lock_irqsave(&priv->tx_queue.lock, flags);
Christian Lamparter39ca5bb2008-12-09 21:09:00 +01001144
Michael Wueff1a592007-09-25 18:11:01 -07001145 left = skb_queue_len(&priv->tx_queue);
Christian Lamparter39ca5bb2008-12-09 21:09:00 +01001146 if (unlikely(left >= 28)) {
1147 /*
1148 * The tx_queue is nearly full!
1149 * We have throttle normal data traffic, because we must
1150 * have a few spare slots for control frames left.
1151 */
1152 ieee80211_stop_queues(dev);
Christian Lamparter54fdb042008-12-13 14:14:20 +01001153 queue_delayed_work(dev->workqueue, &priv->work,
1154 msecs_to_jiffies(P54_TX_TIMEOUT));
Christian Lamparter39ca5bb2008-12-09 21:09:00 +01001155
1156 if (unlikely(left == 32)) {
1157 /*
1158 * The tx_queue is now really full.
1159 *
1160 * TODO: check if the device has crashed and reset it.
1161 */
1162 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
1163 return -ENOSPC;
1164 }
1165 }
1166
David S. Millera1091aa2009-05-28 00:48:16 -07001167 skb_queue_walk(&priv->tx_queue, entry) {
Michael Wueff1a592007-09-25 18:11:01 -07001168 u32 hole_size;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001169 info = IEEE80211_SKB_CB(entry);
1170 range = (void *)info->rate_driver_data;
Michael Wueff1a592007-09-25 18:11:01 -07001171 hole_size = range->start_addr - last_addr;
1172 if (!target_skb && hole_size >= len) {
David S. Millera1091aa2009-05-28 00:48:16 -07001173 target_skb = skb_queue_prev(&priv->tx_queue, entry);
Michael Wueff1a592007-09-25 18:11:01 -07001174 hole_size -= len;
1175 target_addr = last_addr;
1176 }
1177 largest_hole = max(largest_hole, hole_size);
1178 last_addr = range->end_addr;
Michael Wueff1a592007-09-25 18:11:01 -07001179 }
1180 if (!target_skb && priv->rx_end - last_addr >= len) {
David S. Millera1091aa2009-05-28 00:48:16 -07001181 target_skb = skb_peek_tail(&priv->tx_queue);
Michael Wueff1a592007-09-25 18:11:01 -07001182 largest_hole = max(largest_hole, priv->rx_end - last_addr - len);
1183 if (!skb_queue_empty(&priv->tx_queue)) {
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001184 info = IEEE80211_SKB_CB(target_skb);
1185 range = (void *)info->rate_driver_data;
Michael Wueff1a592007-09-25 18:11:01 -07001186 target_addr = range->end_addr;
1187 }
1188 } else
1189 largest_hole = max(largest_hole, priv->rx_end - last_addr);
1190
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001191 if (!target_skb) {
1192 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
1193 ieee80211_stop_queues(dev);
Christian Lamparter39ca5bb2008-12-09 21:09:00 +01001194 return -ENOSPC;
Michael Wueff1a592007-09-25 18:11:01 -07001195 }
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001196
1197 info = IEEE80211_SKB_CB(skb);
1198 range = (void *)info->rate_driver_data;
1199 range->start_addr = target_addr;
1200 range->end_addr = target_addr + len;
1201 __skb_queue_after(&priv->tx_queue, target_skb, skb);
Michael Wueff1a592007-09-25 18:11:01 -07001202 spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
1203
John W. Linville27df6052008-10-22 16:41:55 -04001204 if (largest_hole < priv->headroom + sizeof(struct p54_hdr) +
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001205 48 + IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
1206 ieee80211_stop_queues(dev);
1207
Christian Lamparter4e416a62008-09-01 22:48:41 +02001208 data->req_id = cpu_to_le32(target_addr + priv->headroom);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001209 return 0;
1210}
1211
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001212static struct sk_buff *p54_alloc_skb(struct ieee80211_hw *dev, u16 hdr_flags,
1213 u16 payload_len, u16 type, gfp_t memflags)
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001214{
1215 struct p54_common *priv = dev->priv;
John W. Linville27df6052008-10-22 16:41:55 -04001216 struct p54_hdr *hdr;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001217 struct sk_buff *skb;
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001218 size_t frame_len = sizeof(*hdr) + payload_len;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001219
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001220 if (frame_len > P54_MAX_CTRL_FRAME_LEN)
1221 return NULL;
1222
1223 skb = __dev_alloc_skb(priv->tx_hdr_len + frame_len, memflags);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001224 if (!skb)
1225 return NULL;
1226 skb_reserve(skb, priv->tx_hdr_len);
1227
John W. Linville27df6052008-10-22 16:41:55 -04001228 hdr = (struct p54_hdr *) skb_put(skb, sizeof(*hdr));
1229 hdr->flags = cpu_to_le16(hdr_flags);
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001230 hdr->len = cpu_to_le16(payload_len);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001231 hdr->type = cpu_to_le16(type);
John W. Linville27df6052008-10-22 16:41:55 -04001232 hdr->tries = hdr->rts_tries = 0;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001233
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001234 if (p54_assign_address(dev, skb, hdr, frame_len)) {
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001235 kfree_skb(skb);
1236 return NULL;
1237 }
1238 return skb;
Michael Wueff1a592007-09-25 18:11:01 -07001239}
1240
Christian Lamparter7cb77072008-09-01 22:48:51 +02001241int p54_read_eeprom(struct ieee80211_hw *dev)
1242{
1243 struct p54_common *priv = dev->priv;
Christian Lamparter7cb77072008-09-01 22:48:51 +02001244 struct p54_eeprom_lm86 *eeprom_hdr;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001245 struct sk_buff *skb;
Christian Lamparter64c354d2008-11-29 22:35:43 +01001246 size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize;
Christian Lamparter7cb77072008-09-01 22:48:51 +02001247 int ret = -ENOMEM;
1248 void *eeprom = NULL;
1249
Christian Lamparter64c354d2008-11-29 22:35:43 +01001250 maxblocksize = EEPROM_READBACK_LEN;
1251 if (priv->fw_var >= 0x509)
1252 maxblocksize -= 0xc;
1253 else
1254 maxblocksize -= 0x4;
1255
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001256 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(*eeprom_hdr) +
1257 maxblocksize, P54_CONTROL_TYPE_EEPROM_READBACK,
1258 GFP_KERNEL);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001259 if (!skb)
Christian Lamparter7cb77072008-09-01 22:48:51 +02001260 goto free;
Christian Lamparter7cb77072008-09-01 22:48:51 +02001261 priv->eeprom = kzalloc(EEPROM_READBACK_LEN, GFP_KERNEL);
1262 if (!priv->eeprom)
1263 goto free;
Christian Lamparter7cb77072008-09-01 22:48:51 +02001264 eeprom = kzalloc(eeprom_size, GFP_KERNEL);
1265 if (!eeprom)
1266 goto free;
1267
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001268 eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb,
Christian Lamparter64c354d2008-11-29 22:35:43 +01001269 sizeof(*eeprom_hdr) + maxblocksize);
Christian Lamparter7cb77072008-09-01 22:48:51 +02001270
1271 while (eeprom_size) {
Christian Lamparter64c354d2008-11-29 22:35:43 +01001272 blocksize = min(eeprom_size, maxblocksize);
1273 if (priv->fw_var < 0x509) {
1274 eeprom_hdr->v1.offset = cpu_to_le16(offset);
1275 eeprom_hdr->v1.len = cpu_to_le16(blocksize);
1276 } else {
1277 eeprom_hdr->v2.offset = cpu_to_le32(offset);
1278 eeprom_hdr->v2.len = cpu_to_le16(blocksize);
1279 eeprom_hdr->v2.magic2 = 0xf;
1280 memcpy(eeprom_hdr->v2.magic, (const char *)"LOCK", 4);
1281 }
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001282 priv->tx(dev, skb);
Christian Lamparter7cb77072008-09-01 22:48:51 +02001283
1284 if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) {
1285 printk(KERN_ERR "%s: device does not respond!\n",
1286 wiphy_name(dev->wiphy));
1287 ret = -EBUSY;
1288 goto free;
1289 }
1290
1291 memcpy(eeprom + offset, priv->eeprom, blocksize);
1292 offset += blocksize;
1293 eeprom_size -= blocksize;
1294 }
1295
1296 ret = p54_parse_eeprom(dev, eeprom, offset);
1297free:
1298 kfree(priv->eeprom);
1299 priv->eeprom = NULL;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001300 p54_free_skb(dev, skb);
Christian Lamparter7cb77072008-09-01 22:48:51 +02001301 kfree(eeprom);
1302
1303 return ret;
1304}
1305EXPORT_SYMBOL_GPL(p54_read_eeprom);
1306
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001307static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
1308 bool set)
1309{
1310 struct p54_common *priv = dev->priv;
1311 struct sk_buff *skb;
1312 struct p54_tim *tim;
1313
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001314 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*tim),
1315 P54_CONTROL_TYPE_TIM, GFP_ATOMIC);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001316 if (!skb)
1317 return -ENOMEM;
1318
1319 tim = (struct p54_tim *) skb_put(skb, sizeof(*tim));
1320 tim->count = 1;
1321 tim->entry[0] = cpu_to_le16(set ? (sta->aid | 0x8000) : sta->aid);
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001322 priv->tx(dev, skb);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001323 return 0;
1324}
1325
1326static int p54_sta_unlock(struct ieee80211_hw *dev, u8 *addr)
1327{
1328 struct p54_common *priv = dev->priv;
1329 struct sk_buff *skb;
1330 struct p54_sta_unlock *sta;
1331
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001332 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*sta),
1333 P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001334 if (!skb)
1335 return -ENOMEM;
1336
1337 sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta));
1338 memcpy(sta->addr, addr, ETH_ALEN);
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001339 priv->tx(dev, skb);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001340 return 0;
1341}
1342
Christian Lamparterc772a082008-11-29 22:33:57 +01001343static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
1344 enum sta_notify_cmd notify_cmd,
1345 struct ieee80211_sta *sta)
1346{
1347 switch (notify_cmd) {
1348 case STA_NOTIFY_ADD:
1349 case STA_NOTIFY_REMOVE:
1350 /*
1351 * Notify the firmware that we don't want or we don't
1352 * need to buffer frames for this station anymore.
1353 */
1354
1355 p54_sta_unlock(dev, sta->addr);
1356 break;
Christian Lamparter89fad572008-12-09 16:28:06 +01001357 case STA_NOTIFY_AWAKE:
1358 /* update the firmware's filter table */
1359 p54_sta_unlock(dev, sta->addr);
1360 break;
Christian Lamparterc772a082008-11-29 22:33:57 +01001361 default:
1362 break;
1363 }
1364}
1365
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001366static int p54_tx_cancel(struct ieee80211_hw *dev, struct sk_buff *entry)
1367{
1368 struct p54_common *priv = dev->priv;
1369 struct sk_buff *skb;
1370 struct p54_hdr *hdr;
1371 struct p54_txcancel *cancel;
1372
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001373 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*cancel),
1374 P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001375 if (!skb)
1376 return -ENOMEM;
1377
1378 hdr = (void *)entry->data;
1379 cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel));
1380 cancel->req_id = hdr->req_id;
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001381 priv->tx(dev, skb);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001382 return 0;
1383}
1384
Christian Lamparter94585b02008-10-18 23:18:44 +02001385static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb,
1386 struct ieee80211_tx_info *info, u8 *queue, size_t *extra_len,
1387 u16 *flags, u16 *aid)
1388{
1389 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1390 struct p54_common *priv = dev->priv;
Christian Lamparter29701e52008-12-21 22:52:10 +01001391 int ret = 1;
Christian Lamparter94585b02008-10-18 23:18:44 +02001392
1393 switch (priv->mode) {
Christian Lamparter29701e52008-12-21 22:52:10 +01001394 case NL80211_IFTYPE_MONITOR:
1395 /*
1396 * We have to set P54_HDR_FLAG_DATA_OUT_PROMISC for
1397 * every frame in promiscuous/monitor mode.
1398 * see STSW45x0C LMAC API - page 12.
1399 */
1400 *aid = 0;
1401 *flags = P54_HDR_FLAG_DATA_OUT_PROMISC;
1402 *queue += P54_QUEUE_DATA;
1403 break;
Christian Lamparter94585b02008-10-18 23:18:44 +02001404 case NL80211_IFTYPE_STATION:
1405 *aid = 1;
Christian Lamparter29701e52008-12-21 22:52:10 +01001406 if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
1407 *queue = P54_QUEUE_MGMT;
1408 ret = 0;
1409 } else
1410 *queue += P54_QUEUE_DATA;
Christian Lamparter94585b02008-10-18 23:18:44 +02001411 break;
1412 case NL80211_IFTYPE_AP:
1413 case NL80211_IFTYPE_ADHOC:
Christian Lamparterd131bb52008-11-15 17:02:31 +01001414 case NL80211_IFTYPE_MESH_POINT:
Christian Lamparter94585b02008-10-18 23:18:44 +02001415 if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
1416 *aid = 0;
Christian Lampartera15bd002008-12-21 20:54:34 +01001417 *queue = P54_QUEUE_CAB;
Christian Lamparter94585b02008-10-18 23:18:44 +02001418 return 0;
1419 }
Christian Lamparter29701e52008-12-21 22:52:10 +01001420
1421 if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
1422 if (ieee80211_is_probe_resp(hdr->frame_control)) {
1423 *aid = 0;
1424 *queue = P54_QUEUE_MGMT;
1425 *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP |
1426 P54_HDR_FLAG_DATA_OUT_NOCANCEL;
1427 return 0;
1428 } else if (ieee80211_is_beacon(hdr->frame_control)) {
1429 *aid = 0;
1430
1431 if (info->flags & IEEE80211_TX_CTL_INJECTED) {
1432 /*
1433 * Injecting beacons on top of a AP is
1434 * not a good idea... nevertheless,
1435 * it should be doable.
1436 */
1437
1438 *queue += P54_QUEUE_DATA;
1439 return 1;
1440 }
1441
1442 *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP;
1443 *queue = P54_QUEUE_BEACON;
1444 *extra_len = IEEE80211_MAX_TIM_LEN;
1445 return 0;
1446 } else {
1447 *queue = P54_QUEUE_MGMT;
1448 ret = 0;
1449 }
1450 } else
1451 *queue += P54_QUEUE_DATA;
1452
Christian Lamparter94585b02008-10-18 23:18:44 +02001453 if (info->control.sta)
1454 *aid = info->control.sta->aid;
Christian Lamparterd577e7c2009-04-18 18:30:13 +02001455
1456 if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
Christian Lamparterc772a082008-11-29 22:33:57 +01001457 *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL;
Christian Lamparter29701e52008-12-21 22:52:10 +01001458 break;
Christian Lamparter94585b02008-10-18 23:18:44 +02001459 }
1460 return ret;
1461}
1462
Christian Lamparter25900ef2008-11-29 22:34:37 +01001463static u8 p54_convert_algo(enum ieee80211_key_alg alg)
1464{
1465 switch (alg) {
1466 case ALG_WEP:
1467 return P54_CRYPTO_WEP;
1468 case ALG_TKIP:
1469 return P54_CRYPTO_TKIPMICHAEL;
1470 case ALG_CCMP:
1471 return P54_CRYPTO_AESCCMP;
1472 default:
1473 return 0;
1474 }
1475}
1476
Johannes Berge039fa42008-05-15 12:55:29 +02001477static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
Michael Wueff1a592007-09-25 18:11:01 -07001478{
Johannes Berge039fa42008-05-15 12:55:29 +02001479 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
Christian Lampartera15bd002008-12-21 20:54:34 +01001480 struct ieee80211_tx_queue_stats *current_queue;
Michael Wueff1a592007-09-25 18:11:01 -07001481 struct p54_common *priv = dev->priv;
John W. Linville27df6052008-10-22 16:41:55 -04001482 struct p54_hdr *hdr;
1483 struct p54_tx_data *txhdr;
John W. Linvilledb4186c2008-10-31 15:53:12 -04001484 size_t padding, len, tim_len = 0;
Christian Lamparterc772a082008-11-29 22:33:57 +01001485 int i, j, ridx, ret;
Christian Lamparter94585b02008-10-18 23:18:44 +02001486 u16 hdr_flags = 0, aid = 0;
Christian Lamparter25900ef2008-11-29 22:34:37 +01001487 u8 rate, queue, crypt_offset = 0;
Christian Lamparteraaa15532008-08-09 19:20:47 -05001488 u8 cts_rate = 0x20;
Johannes Berge6a98542008-10-21 12:40:02 +02001489 u8 rc_flags;
Johannes Bergc12abae2008-10-14 16:56:51 +02001490 u8 calculated_tries[4];
1491 u8 nrates = 0, nremaining = 8;
Michael Wueff1a592007-09-25 18:11:01 -07001492
Christian Lamparter94585b02008-10-18 23:18:44 +02001493 queue = skb_get_queue_mapping(skb);
1494
Christian Lamparterc772a082008-11-29 22:33:57 +01001495 ret = p54_tx_fill(dev, skb, info, &queue, &tim_len, &hdr_flags, &aid);
1496 current_queue = &priv->tx_stats[queue];
1497 if (unlikely((current_queue->len > current_queue->limit) && ret))
1498 return NETDEV_TX_BUSY;
1499 current_queue->len++;
1500 current_queue->count++;
1501 if ((current_queue->len == current_queue->limit) && ret)
1502 ieee80211_stop_queue(dev, skb_get_queue_mapping(skb));
Michael Wueff1a592007-09-25 18:11:01 -07001503
1504 padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3;
1505 len = skb->len;
1506
Christian Lamparter25900ef2008-11-29 22:34:37 +01001507 if (info->control.hw_key) {
1508 crypt_offset = ieee80211_get_hdrlen_from_skb(skb);
1509 if (info->control.hw_key->alg == ALG_TKIP) {
1510 u8 *iv = (u8 *)(skb->data + crypt_offset);
1511 /*
1512 * The firmware excepts that the IV has to have
1513 * this special format
1514 */
1515 iv[1] = iv[0];
1516 iv[0] = iv[2];
1517 iv[2] = 0;
1518 }
1519 }
1520
John W. Linville27df6052008-10-22 16:41:55 -04001521 txhdr = (struct p54_tx_data *) skb_push(skb, sizeof(*txhdr) + padding);
1522 hdr = (struct p54_hdr *) skb_push(skb, sizeof(*hdr));
Michael Wueff1a592007-09-25 18:11:01 -07001523
1524 if (padding)
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02001525 hdr_flags |= P54_HDR_FLAG_DATA_ALIGN;
Christian Lamparter94585b02008-10-18 23:18:44 +02001526 hdr->type = cpu_to_le16(aid);
John W. Linville27df6052008-10-22 16:41:55 -04001527 hdr->rts_tries = info->control.rates[0].count;
Michael Wueff1a592007-09-25 18:11:01 -07001528
Johannes Bergc12abae2008-10-14 16:56:51 +02001529 /*
1530 * we register the rates in perfect order, and
1531 * RTS/CTS won't happen on 5 GHz
1532 */
1533 cts_rate = info->control.rts_cts_rate_idx;
1534
1535 memset(&txhdr->rateset, 0, sizeof(txhdr->rateset));
1536
1537 /* see how many rates got used */
1538 for (i = 0; i < 4; i++) {
1539 if (info->control.rates[i].idx < 0)
1540 break;
1541 nrates++;
Christian Lamparteraaa15532008-08-09 19:20:47 -05001542 }
Johannes Bergc12abae2008-10-14 16:56:51 +02001543
1544 /* limit tries to 8/nrates per rate */
1545 for (i = 0; i < nrates; i++) {
1546 /*
1547 * The magic expression here is equivalent to 8/nrates for
1548 * all values that matter, but avoids division and jumps.
1549 * Note that nrates can only take the values 1 through 4.
1550 */
1551 calculated_tries[i] = min_t(int, ((15 >> nrates) | 1) + 1,
1552 info->control.rates[i].count);
1553 nremaining -= calculated_tries[i];
Christian Lamparteraaa15532008-08-09 19:20:47 -05001554 }
Johannes Bergc12abae2008-10-14 16:56:51 +02001555
1556 /* if there are tries left, distribute from back to front */
1557 for (i = nrates - 1; nremaining > 0 && i >= 0; i--) {
1558 int tmp = info->control.rates[i].count - calculated_tries[i];
1559
1560 if (tmp <= 0)
1561 continue;
1562 /* RC requested more tries at this rate */
1563
1564 tmp = min_t(int, tmp, nremaining);
1565 calculated_tries[i] += tmp;
1566 nremaining -= tmp;
1567 }
1568
1569 ridx = 0;
1570 for (i = 0; i < nrates && ridx < 8; i++) {
1571 /* we register the rates in perfect order */
1572 rate = info->control.rates[i].idx;
1573 if (info->band == IEEE80211_BAND_5GHZ)
1574 rate += 4;
1575
1576 /* store the count we actually calculated for TX status */
1577 info->control.rates[i].count = calculated_tries[i];
1578
1579 rc_flags = info->control.rates[i].flags;
1580 if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) {
1581 rate |= 0x10;
1582 cts_rate |= 0x10;
1583 }
1584 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
1585 rate |= 0x40;
1586 else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1587 rate |= 0x20;
1588 for (j = 0; j < calculated_tries[i] && ridx < 8; j++) {
1589 txhdr->rateset[ridx] = rate;
1590 ridx++;
1591 }
1592 }
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02001593
1594 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
1595 hdr_flags |= P54_HDR_FLAG_DATA_OUT_SEQNR;
1596
1597 /* TODO: enable bursting */
1598 hdr->flags = cpu_to_le16(hdr_flags);
John W. Linville27df6052008-10-22 16:41:55 -04001599 hdr->tries = ridx;
John W. Linville27df6052008-10-22 16:41:55 -04001600 txhdr->rts_rate_idx = 0;
Christian Lamparter25900ef2008-11-29 22:34:37 +01001601 if (info->control.hw_key) {
Christian Lamparter25900ef2008-11-29 22:34:37 +01001602 txhdr->key_type = p54_convert_algo(info->control.hw_key->alg);
1603 txhdr->key_len = min((u8)16, info->control.hw_key->keylen);
1604 memcpy(txhdr->key, info->control.hw_key->key, txhdr->key_len);
1605 if (info->control.hw_key->alg == ALG_TKIP) {
1606 if (unlikely(skb_tailroom(skb) < 12))
1607 goto err;
1608 /* reserve space for the MIC key */
1609 len += 8;
1610 memcpy(skb_put(skb, 8), &(info->control.hw_key->key
1611 [NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]), 8);
1612 }
1613 /* reserve some space for ICV */
1614 len += info->control.hw_key->icv_len;
Christian Lamparterc1d34c12008-12-20 02:21:37 +01001615 memset(skb_put(skb, info->control.hw_key->icv_len), 0,
1616 info->control.hw_key->icv_len);
Christian Lamparter25900ef2008-11-29 22:34:37 +01001617 } else {
1618 txhdr->key_type = 0;
1619 txhdr->key_len = 0;
1620 }
1621 txhdr->crypt_offset = crypt_offset;
Christian Lamparter94585b02008-10-18 23:18:44 +02001622 txhdr->hw_queue = queue;
Christian Lampartera15bd002008-12-21 20:54:34 +01001623 txhdr->backlog = current_queue->len;
John W. Linville27df6052008-10-22 16:41:55 -04001624 memset(txhdr->durations, 0, sizeof(txhdr->durations));
Christian Lamparter78eb7482008-12-30 13:48:19 +01001625 txhdr->tx_antenna = ((info->antenna_sel_tx == 0) ?
1626 2 : info->antenna_sel_tx - 1) & priv->tx_diversity_mask;
Christian Lamparter6917f502009-01-11 01:14:18 +01001627 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1628 txhdr->longbow.cts_rate = cts_rate;
1629 txhdr->longbow.output_power = cpu_to_le16(priv->output_power);
1630 } else {
1631 txhdr->normal.output_power = priv->output_power;
1632 txhdr->normal.cts_rate = cts_rate;
1633 }
Michael Wueff1a592007-09-25 18:11:01 -07001634 if (padding)
1635 txhdr->align[0] = padding;
1636
Christian Lamparter25900ef2008-11-29 22:34:37 +01001637 hdr->len = cpu_to_le16(len);
Johannes Berge039fa42008-05-15 12:55:29 +02001638 /* modifies skb->cb and with it info, so must be last! */
Christian Lamparter25900ef2008-11-29 22:34:37 +01001639 if (unlikely(p54_assign_address(dev, skb, hdr, skb->len + tim_len)))
1640 goto err;
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001641 priv->tx(dev, skb);
Christian Lamparter54fdb042008-12-13 14:14:20 +01001642
1643 queue_delayed_work(dev->workqueue, &priv->work,
1644 msecs_to_jiffies(P54_TX_FRAME_LIFETIME));
1645
Christian Lamparteracbaf322009-01-07 16:40:08 +01001646 return NETDEV_TX_OK;
Christian Lamparter25900ef2008-11-29 22:34:37 +01001647
1648 err:
1649 skb_pull(skb, sizeof(*hdr) + sizeof(*txhdr) + padding);
Christian Lampartera15bd002008-12-21 20:54:34 +01001650 current_queue->len--;
1651 current_queue->count--;
Christian Lamparter25900ef2008-11-29 22:34:37 +01001652 return NETDEV_TX_BUSY;
Michael Wueff1a592007-09-25 18:11:01 -07001653}
1654
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001655static int p54_setup_mac(struct ieee80211_hw *dev)
Michael Wueff1a592007-09-25 18:11:01 -07001656{
1657 struct p54_common *priv = dev->priv;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001658 struct sk_buff *skb;
Christian Lamparter5e734442008-10-15 04:07:56 +02001659 struct p54_setup_mac *setup;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001660 u16 mode;
Michael Wueff1a592007-09-25 18:11:01 -07001661
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001662 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup),
1663 P54_CONTROL_TYPE_SETUP, GFP_ATOMIC);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001664 if (!skb)
Michael Wueff1a592007-09-25 18:11:01 -07001665 return -ENOMEM;
1666
Christian Lamparter5e734442008-10-15 04:07:56 +02001667 setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup));
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001668 if (dev->conf.radio_enabled) {
1669 switch (priv->mode) {
1670 case NL80211_IFTYPE_STATION:
1671 mode = P54_FILTER_TYPE_STATION;
1672 break;
1673 case NL80211_IFTYPE_AP:
1674 mode = P54_FILTER_TYPE_AP;
1675 break;
1676 case NL80211_IFTYPE_ADHOC:
1677 case NL80211_IFTYPE_MESH_POINT:
1678 mode = P54_FILTER_TYPE_IBSS;
1679 break;
Christian Lamparter29701e52008-12-21 22:52:10 +01001680 case NL80211_IFTYPE_MONITOR:
1681 mode = P54_FILTER_TYPE_PROMISCUOUS;
1682 break;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001683 default:
Christian Lamparterefeada22009-03-05 21:31:05 +01001684 mode = P54_FILTER_TYPE_HIBERNATE;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001685 break;
1686 }
Christian Lamparter29701e52008-12-21 22:52:10 +01001687
1688 /*
1689 * "TRANSPARENT and PROMISCUOUS are mutually exclusive"
1690 * STSW45X0C LMAC API - page 12
1691 */
Christian Lamparter51eed992008-12-30 13:48:29 +01001692 if (((priv->filter_flags & FIF_PROMISC_IN_BSS) ||
1693 (priv->filter_flags & FIF_OTHER_BSS)) &&
Christian Lamparter29701e52008-12-21 22:52:10 +01001694 (mode != P54_FILTER_TYPE_PROMISCUOUS))
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001695 mode |= P54_FILTER_TYPE_TRANSPARENT;
1696 } else
Christian Lamparterefeada22009-03-05 21:31:05 +01001697 mode = P54_FILTER_TYPE_HIBERNATE;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001698
Christian Lamparter5e734442008-10-15 04:07:56 +02001699 setup->mac_mode = cpu_to_le16(mode);
1700 memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN);
Christian Lamparterb2023dd2008-11-29 22:37:31 +01001701 memcpy(setup->bssid, priv->bssid, ETH_ALEN);
Christian Lamparter78eb7482008-12-30 13:48:19 +01001702 setup->rx_antenna = 2 & priv->rx_diversity_mask; /* automatic */
Chr94834072008-10-29 22:39:50 +01001703 setup->rx_align = 0;
Christian Lamparter19c19d52008-09-03 22:25:25 +02001704 if (priv->fw_var < 0x500) {
Christian Lamparterced09572008-11-14 19:42:39 +01001705 setup->v1.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
Chr94834072008-10-29 22:39:50 +01001706 memset(setup->v1.rts_rates, 0, 8);
Christian Lamparter5e734442008-10-15 04:07:56 +02001707 setup->v1.rx_addr = cpu_to_le32(priv->rx_end);
1708 setup->v1.max_rx = cpu_to_le16(priv->rx_mtu);
1709 setup->v1.rxhw = cpu_to_le16(priv->rxhw);
Christian Lamparterced09572008-11-14 19:42:39 +01001710 setup->v1.wakeup_timer = cpu_to_le16(priv->wakeup_timer);
Christian Lamparter5e734442008-10-15 04:07:56 +02001711 setup->v1.unalloc0 = cpu_to_le16(0);
Christian Lamparter19c19d52008-09-03 22:25:25 +02001712 } else {
Christian Lamparter5e734442008-10-15 04:07:56 +02001713 setup->v2.rx_addr = cpu_to_le32(priv->rx_end);
1714 setup->v2.max_rx = cpu_to_le16(priv->rx_mtu);
1715 setup->v2.rxhw = cpu_to_le16(priv->rxhw);
Christian Lamparterced09572008-11-14 19:42:39 +01001716 setup->v2.timer = cpu_to_le16(priv->wakeup_timer);
Christian Lamparter5e734442008-10-15 04:07:56 +02001717 setup->v2.truncate = cpu_to_le16(48896);
Christian Lamparterced09572008-11-14 19:42:39 +01001718 setup->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
Christian Lamparter5e734442008-10-15 04:07:56 +02001719 setup->v2.sbss_offset = 0;
1720 setup->v2.mcast_window = 0;
1721 setup->v2.rx_rssi_threshold = 0;
1722 setup->v2.rx_ed_threshold = 0;
1723 setup->v2.ref_clock = cpu_to_le32(644245094);
1724 setup->v2.lpf_bandwidth = cpu_to_le16(65535);
1725 setup->v2.osc_start_delay = cpu_to_le16(65535);
Christian Lamparter19c19d52008-09-03 22:25:25 +02001726 }
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001727 priv->tx(dev, skb);
Michael Wueff1a592007-09-25 18:11:01 -07001728 return 0;
1729}
1730
Christian Lamparter69ba3e52008-12-14 14:45:30 +01001731static int p54_scan(struct ieee80211_hw *dev, u16 mode, u16 dwell)
Michael Wueff1a592007-09-25 18:11:01 -07001732{
1733 struct p54_common *priv = dev->priv;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001734 struct sk_buff *skb;
Christian Lamparter6917f502009-01-11 01:14:18 +01001735 struct p54_hdr *hdr;
1736 struct p54_scan_head *head;
1737 struct p54_iq_autocal_entry *iq_autocal;
1738 union p54_scan_body_union *body;
1739 struct p54_scan_tail_rate *rate;
1740 struct pda_rssi_cal_entry *rssi;
Michael Wueff1a592007-09-25 18:11:01 -07001741 unsigned int i;
Michael Wueff1a592007-09-25 18:11:01 -07001742 void *entry;
Christian Lamparter69ba3e52008-12-14 14:45:30 +01001743 int band = dev->conf.channel->band;
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001744 __le16 freq = cpu_to_le16(dev->conf.channel->center_freq);
Michael Wueff1a592007-09-25 18:11:01 -07001745
Christian Lamparter6917f502009-01-11 01:14:18 +01001746 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*head) +
1747 2 + sizeof(*iq_autocal) + sizeof(*body) +
1748 sizeof(*rate) + 2 * sizeof(*rssi),
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001749 P54_CONTROL_TYPE_SCAN, GFP_ATOMIC);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001750 if (!skb)
Michael Wueff1a592007-09-25 18:11:01 -07001751 return -ENOMEM;
1752
Christian Lamparter6917f502009-01-11 01:14:18 +01001753 head = (struct p54_scan_head *) skb_put(skb, sizeof(*head));
1754 memset(head->scan_params, 0, sizeof(head->scan_params));
1755 head->mode = cpu_to_le16(mode);
1756 head->dwell = cpu_to_le16(dwell);
1757 head->freq = freq;
Michael Wueff1a592007-09-25 18:11:01 -07001758
Christian Lamparter6917f502009-01-11 01:14:18 +01001759 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1760 __le16 *pa_power_points = (__le16 *) skb_put(skb, 2);
1761 *pa_power_points = cpu_to_le16(0x0c);
1762 }
1763
1764 iq_autocal = (void *) skb_put(skb, sizeof(*iq_autocal));
Michael Wueff1a592007-09-25 18:11:01 -07001765 for (i = 0; i < priv->iq_autocal_len; i++) {
1766 if (priv->iq_autocal[i].freq != freq)
1767 continue;
1768
Christian Lamparter6917f502009-01-11 01:14:18 +01001769 memcpy(iq_autocal, &priv->iq_autocal[i].params,
1770 sizeof(struct p54_iq_autocal_entry));
Michael Wueff1a592007-09-25 18:11:01 -07001771 break;
1772 }
1773 if (i == priv->iq_autocal_len)
1774 goto err;
1775
Christian Lamparter6917f502009-01-11 01:14:18 +01001776 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW)
1777 body = (void *) skb_put(skb, sizeof(body->longbow));
1778 else
1779 body = (void *) skb_put(skb, sizeof(body->normal));
1780
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001781 for (i = 0; i < priv->output_limit->entries; i++) {
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001782 __le16 *entry_freq = (void *) (priv->output_limit->data +
Christian Lamparter6917f502009-01-11 01:14:18 +01001783 priv->output_limit->entry_size * i);
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001784
1785 if (*entry_freq != freq)
Michael Wueff1a592007-09-25 18:11:01 -07001786 continue;
1787
Christian Lamparter6917f502009-01-11 01:14:18 +01001788 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1789 memcpy(&body->longbow.power_limits,
1790 (void *) entry_freq + sizeof(__le16),
1791 priv->output_limit->entry_size);
1792 } else {
1793 struct pda_channel_output_limit *limits =
1794 (void *) entry_freq;
1795
1796 body->normal.val_barker = 0x38;
1797 body->normal.val_bpsk = body->normal.dup_bpsk =
1798 limits->val_bpsk;
1799 body->normal.val_qpsk = body->normal.dup_qpsk =
1800 limits->val_qpsk;
1801 body->normal.val_16qam = body->normal.dup_16qam =
1802 limits->val_16qam;
1803 body->normal.val_64qam = body->normal.dup_64qam =
1804 limits->val_64qam;
1805 }
Michael Wueff1a592007-09-25 18:11:01 -07001806 break;
1807 }
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001808 if (i == priv->output_limit->entries)
Michael Wueff1a592007-09-25 18:11:01 -07001809 goto err;
1810
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001811 entry = (void *)(priv->curve_data->data + priv->curve_data->offset);
1812 for (i = 0; i < priv->curve_data->entries; i++) {
Michael Wueff1a592007-09-25 18:11:01 -07001813 if (*((__le16 *)entry) != freq) {
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001814 entry += priv->curve_data->entry_size;
Michael Wueff1a592007-09-25 18:11:01 -07001815 continue;
1816 }
1817
Christian Lamparter6917f502009-01-11 01:14:18 +01001818 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1819 memcpy(&body->longbow.curve_data,
1820 (void *) entry + sizeof(__le16),
1821 priv->curve_data->entry_size);
1822 } else {
1823 struct p54_scan_body *chan = &body->normal;
1824 struct pda_pa_curve_data *curve_data =
1825 (void *) priv->curve_data->data;
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001826
Christian Lamparter6917f502009-01-11 01:14:18 +01001827 entry += sizeof(__le16);
1828 chan->pa_points_per_curve = 8;
1829 memset(chan->curve_data, 0, sizeof(*chan->curve_data));
1830 memcpy(chan->curve_data, entry,
1831 sizeof(struct p54_pa_curve_data_sample) *
1832 min((u8)8, curve_data->points_per_channel));
1833 }
Michael Wueff1a592007-09-25 18:11:01 -07001834 break;
1835 }
Christian Lamparter83cf1b62009-01-11 01:10:33 +01001836 if (i == priv->curve_data->entries)
1837 goto err;
Michael Wueff1a592007-09-25 18:11:01 -07001838
Christian Lamparter6917f502009-01-11 01:14:18 +01001839 if ((priv->fw_var >= 0x500) && (priv->fw_var < 0x509)) {
1840 rate = (void *) skb_put(skb, sizeof(*rate));
1841 rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
1842 for (i = 0; i < sizeof(rate->rts_rates); i++)
1843 rate->rts_rates[i] = i;
Christian Lamparter19c19d52008-09-03 22:25:25 +02001844 }
Christian Lamparter6917f502009-01-11 01:14:18 +01001845
1846 rssi = (struct pda_rssi_cal_entry *) skb_put(skb, sizeof(*rssi));
1847 rssi->mul = cpu_to_le16(priv->rssical_db[band].mul);
1848 rssi->add = cpu_to_le16(priv->rssical_db[band].add);
1849 if (priv->rxhw == PDR_SYNTH_FRONTEND_LONGBOW) {
1850 /* Longbow frontend needs ever more */
1851 rssi = (void *) skb_put(skb, sizeof(*rssi));
1852 rssi->mul = cpu_to_le16(priv->rssical_db[band].longbow_unkn);
1853 rssi->add = cpu_to_le16(priv->rssical_db[band].longbow_unk2);
1854 }
1855
1856 if (priv->fw_var >= 0x509) {
1857 rate = (void *) skb_put(skb, sizeof(*rate));
1858 rate->basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
1859 for (i = 0; i < sizeof(rate->rts_rates); i++)
1860 rate->rts_rates[i] = i;
1861 }
1862
1863 hdr = (struct p54_hdr *) skb->data;
1864 hdr->len = cpu_to_le16(skb->len - sizeof(*hdr));
1865
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001866 priv->tx(dev, skb);
Michael Wueff1a592007-09-25 18:11:01 -07001867 return 0;
1868
1869 err:
1870 printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy));
Christian Lamparteref15aa42009-01-09 21:06:30 +01001871 p54_free_skb(dev, skb);
Michael Wueff1a592007-09-25 18:11:01 -07001872 return -EINVAL;
1873}
1874
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01001875static int p54_set_leds(struct ieee80211_hw *dev)
Michael Wueff1a592007-09-25 18:11:01 -07001876{
1877 struct p54_common *priv = dev->priv;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001878 struct sk_buff *skb;
John W. Linville27df6052008-10-22 16:41:55 -04001879 struct p54_led *led;
Michael Wueff1a592007-09-25 18:11:01 -07001880
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001881 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*led),
1882 P54_CONTROL_TYPE_LED, GFP_ATOMIC);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001883 if (!skb)
Michael Wueff1a592007-09-25 18:11:01 -07001884 return -ENOMEM;
1885
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01001886 led = (struct p54_led *) skb_put(skb, sizeof(*led));
1887 led->flags = cpu_to_le16(0x0003);
1888 led->mask[0] = led->mask[1] = cpu_to_le16(priv->softled_state);
1889 led->delay[0] = cpu_to_le16(1);
1890 led->delay[1] = cpu_to_le16(0);
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001891 priv->tx(dev, skb);
Michael Wueff1a592007-09-25 18:11:01 -07001892 return 0;
1893}
1894
Johannes Berg3330d7be2008-02-10 16:49:38 +01001895#define P54_SET_QUEUE(queue, ai_fs, cw_min, cw_max, _txop) \
Michael Wueff1a592007-09-25 18:11:01 -07001896do { \
1897 queue.aifs = cpu_to_le16(ai_fs); \
1898 queue.cwmin = cpu_to_le16(cw_min); \
1899 queue.cwmax = cpu_to_le16(cw_max); \
Johannes Berg3330d7be2008-02-10 16:49:38 +01001900 queue.txop = cpu_to_le16(_txop); \
Michael Wueff1a592007-09-25 18:11:01 -07001901} while(0)
1902
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001903static int p54_set_edcf(struct ieee80211_hw *dev)
Michael Wueff1a592007-09-25 18:11:01 -07001904{
1905 struct p54_common *priv = dev->priv;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001906 struct sk_buff *skb;
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001907 struct p54_edcf *edcf;
Michael Wueff1a592007-09-25 18:11:01 -07001908
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001909 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*edcf),
1910 P54_CONTROL_TYPE_DCFINIT, GFP_ATOMIC);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001911 if (!skb)
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001912 return -ENOMEM;
1913
Christian Lamparterb92f30d2008-10-15 04:07:16 +02001914 edcf = (struct p54_edcf *)skb_put(skb, sizeof(*edcf));
Christian Lamparter40333e42008-10-08 20:52:22 +02001915 if (priv->use_short_slot) {
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001916 edcf->slottime = 9;
1917 edcf->sifs = 0x10;
1918 edcf->eofpad = 0x00;
Michael Wueff1a592007-09-25 18:11:01 -07001919 } else {
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001920 edcf->slottime = 20;
1921 edcf->sifs = 0x0a;
1922 edcf->eofpad = 0x06;
Michael Wueff1a592007-09-25 18:11:01 -07001923 }
Michael Wueff1a592007-09-25 18:11:01 -07001924 /* (see prism54/isl_oid.h for further details) */
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001925 edcf->frameburst = cpu_to_le16(0);
1926 edcf->round_trip_delay = cpu_to_le16(0);
Chr94834072008-10-29 22:39:50 +01001927 edcf->flags = 0;
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001928 memset(edcf->mapping, 0, sizeof(edcf->mapping));
1929 memcpy(edcf->queue, priv->qos_params, sizeof(edcf->queue));
Christian Lamparter0a5ec962008-12-14 15:05:42 +01001930 priv->tx(dev, skb);
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02001931 return 0;
Michael Wueff1a592007-09-25 18:11:01 -07001932}
1933
Christian Lamparter2b8d4e22008-12-30 13:48:41 +01001934static int p54_set_ps(struct ieee80211_hw *dev)
1935{
1936 struct p54_common *priv = dev->priv;
1937 struct sk_buff *skb;
1938 struct p54_psm *psm;
1939 u16 mode;
1940 int i;
1941
1942 if (dev->conf.flags & IEEE80211_CONF_PS)
Christian Lamparterf13027a2009-03-25 03:12:49 +01001943 mode = P54_PSM | P54_PSM_BEACON_TIMEOUT | P54_PSM_DTIM |
1944 P54_PSM_CHECKSUM | P54_PSM_MCBC;
Christian Lamparter2b8d4e22008-12-30 13:48:41 +01001945 else
1946 mode = P54_PSM_CAM;
1947
Christian Lamparter63f2dc92009-01-09 21:05:31 +01001948 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*psm),
1949 P54_CONTROL_TYPE_PSM, GFP_ATOMIC);
Christian Lamparter2b8d4e22008-12-30 13:48:41 +01001950 if (!skb)
1951 return -ENOMEM;
1952
1953 psm = (struct p54_psm *)skb_put(skb, sizeof(*psm));
1954 psm->mode = cpu_to_le16(mode);
1955 psm->aid = cpu_to_le16(priv->aid);
1956 for (i = 0; i < ARRAY_SIZE(psm->intervals); i++) {
1957 psm->intervals[i].interval =
1958 cpu_to_le16(dev->conf.listen_interval);
Christian Lamparteracbaf322009-01-07 16:40:08 +01001959 psm->intervals[i].periods = cpu_to_le16(1);
Christian Lamparter2b8d4e22008-12-30 13:48:41 +01001960 }
1961
Christian Lamparterf13027a2009-03-25 03:12:49 +01001962 psm->beacon_rssi_skip_max = 200;
Christian Lamparter2b8d4e22008-12-30 13:48:41 +01001963 psm->rssi_delta_threshold = 0;
Christian Lamparterf13027a2009-03-25 03:12:49 +01001964 psm->nr = 10;
1965 psm->exclude[0] = 0;
Christian Lamparter2b8d4e22008-12-30 13:48:41 +01001966
1967 priv->tx(dev, skb);
1968
1969 return 0;
1970}
1971
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001972static int p54_beacon_tim(struct sk_buff *skb)
1973{
1974 /*
1975 * the good excuse for this mess is ... the firmware.
1976 * The dummy TIM MUST be at the end of the beacon frame,
1977 * because it'll be overwritten!
1978 */
1979
1980 struct ieee80211_mgmt *mgmt = (void *)skb->data;
1981 u8 *pos, *end;
1982
Christian Lamparter02e37ba2008-11-29 22:39:08 +01001983 if (skb->len <= sizeof(mgmt))
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001984 return -EINVAL;
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001985
1986 pos = (u8 *)mgmt->u.beacon.variable;
1987 end = skb->data + skb->len;
1988 while (pos < end) {
Christian Lamparter02e37ba2008-11-29 22:39:08 +01001989 if (pos + 2 + pos[1] > end)
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001990 return -EINVAL;
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001991
1992 if (pos[0] == WLAN_EID_TIM) {
1993 u8 dtim_len = pos[1];
1994 u8 dtim_period = pos[3];
1995 u8 *next = pos + 2 + dtim_len;
1996
Christian Lamparter02e37ba2008-11-29 22:39:08 +01001997 if (dtim_len < 3)
Christian Lampartere5ea92a2008-10-18 23:19:00 +02001998 return -EINVAL;
Christian Lamparter02e37ba2008-11-29 22:39:08 +01001999
Christian Lampartere5ea92a2008-10-18 23:19:00 +02002000 memmove(pos, next, end - next);
2001
2002 if (dtim_len > 3)
2003 skb_trim(skb, skb->len - (dtim_len - 3));
2004
2005 pos = end - (dtim_len + 2);
2006
2007 /* add the dummy at the end */
2008 pos[0] = WLAN_EID_TIM;
2009 pos[1] = 3;
2010 pos[2] = 0;
2011 pos[3] = dtim_period;
2012 pos[4] = 0;
2013 return 0;
2014 }
2015 pos += 2 + pos[1];
2016 }
2017 return 0;
2018}
2019
2020static int p54_beacon_update(struct ieee80211_hw *dev,
2021 struct ieee80211_vif *vif)
2022{
2023 struct p54_common *priv = dev->priv;
2024 struct sk_buff *beacon;
2025 int ret;
2026
2027 if (priv->cached_beacon) {
2028 p54_tx_cancel(dev, priv->cached_beacon);
2029 /* wait for the last beacon the be freed */
2030 msleep(10);
2031 }
2032
2033 beacon = ieee80211_beacon_get(dev, vif);
2034 if (!beacon)
2035 return -ENOMEM;
2036 ret = p54_beacon_tim(beacon);
2037 if (ret)
2038 return ret;
2039 ret = p54_tx(dev, beacon);
2040 if (ret)
2041 return ret;
2042 priv->cached_beacon = beacon;
2043 priv->tsf_high32 = 0;
2044 priv->tsf_low32 = 0;
2045
2046 return 0;
2047}
2048
Johannes Berg4150c572007-09-17 01:29:23 -04002049static int p54_start(struct ieee80211_hw *dev)
Michael Wueff1a592007-09-25 18:11:01 -07002050{
2051 struct p54_common *priv = dev->priv;
2052 int err;
2053
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002054 mutex_lock(&priv->conf_mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04002055 err = priv->open(dev);
Christian Lamparter40db0b22008-11-16 12:20:32 +01002056 if (err)
2057 goto out;
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02002058 P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47);
2059 P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94);
2060 P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0);
2061 P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0);
2062 err = p54_set_edcf(dev);
Christian Lamparter40db0b22008-11-16 12:20:32 +01002063 if (err)
2064 goto out;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002065
2066 memset(priv->bssid, ~0, ETH_ALEN);
Christian Lamparter40db0b22008-11-16 12:20:32 +01002067 priv->mode = NL80211_IFTYPE_MONITOR;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002068 err = p54_setup_mac(dev);
2069 if (err) {
2070 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
2071 goto out;
2072 }
Johannes Berg4150c572007-09-17 01:29:23 -04002073
Christian Lamparter54fdb042008-12-13 14:14:20 +01002074 queue_delayed_work(dev->workqueue, &priv->work, 0);
2075
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002076 priv->softled_state = 0;
2077 err = p54_set_leds(dev);
2078
Christian Lamparter40db0b22008-11-16 12:20:32 +01002079out:
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002080 mutex_unlock(&priv->conf_mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04002081 return err;
2082}
2083
2084static void p54_stop(struct ieee80211_hw *dev)
2085{
2086 struct p54_common *priv = dev->priv;
Christian Lampartercc6de662008-09-06 02:56:23 +02002087
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002088 mutex_lock(&priv->conf_mutex);
Christian Lamparter59651e82008-12-09 21:07:50 +01002089 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002090 priv->softled_state = 0;
2091 p54_set_leds(dev);
2092
Christian Lamparterdce07252009-03-25 03:12:18 +01002093#ifdef CONFIG_P54_LEDS
2094 cancel_delayed_work_sync(&priv->led_work);
2095#endif /* CONFIG_P54_LEDS */
Christian Lamparter54fdb042008-12-13 14:14:20 +01002096 cancel_delayed_work_sync(&priv->work);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02002097 if (priv->cached_beacon)
2098 p54_tx_cancel(dev, priv->cached_beacon);
2099
Christian Lamparter59651e82008-12-09 21:07:50 +01002100 priv->stop(dev);
David S. Millera1091aa2009-05-28 00:48:16 -07002101 skb_queue_purge(&priv->tx_queue);
Christian Lampartere5ea92a2008-10-18 23:19:00 +02002102 priv->cached_beacon = NULL;
Christian Lampartera0db6632008-09-06 02:56:04 +02002103 priv->tsf_high32 = priv->tsf_low32 = 0;
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002104 mutex_unlock(&priv->conf_mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04002105}
2106
2107static int p54_add_interface(struct ieee80211_hw *dev,
2108 struct ieee80211_if_init_conf *conf)
2109{
2110 struct p54_common *priv = dev->priv;
2111
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002112 mutex_lock(&priv->conf_mutex);
2113 if (priv->mode != NL80211_IFTYPE_MONITOR) {
2114 mutex_unlock(&priv->conf_mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04002115 return -EOPNOTSUPP;
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002116 }
Michael Wueff1a592007-09-25 18:11:01 -07002117
Christian Lamparterf13027a2009-03-25 03:12:49 +01002118 priv->vif = conf->vif;
2119
Michael Wueff1a592007-09-25 18:11:01 -07002120 switch (conf->type) {
Johannes Berg05c914f2008-09-11 00:01:58 +02002121 case NL80211_IFTYPE_STATION:
Christian Lampartere5ea92a2008-10-18 23:19:00 +02002122 case NL80211_IFTYPE_ADHOC:
2123 case NL80211_IFTYPE_AP:
Christian Lamparterd131bb52008-11-15 17:02:31 +01002124 case NL80211_IFTYPE_MESH_POINT:
Michael Wueff1a592007-09-25 18:11:01 -07002125 priv->mode = conf->type;
2126 break;
2127 default:
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002128 mutex_unlock(&priv->conf_mutex);
Michael Wueff1a592007-09-25 18:11:01 -07002129 return -EOPNOTSUPP;
2130 }
2131
Johannes Berg4150c572007-09-17 01:29:23 -04002132 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002133 p54_setup_mac(dev);
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002134 mutex_unlock(&priv->conf_mutex);
Michael Wueff1a592007-09-25 18:11:01 -07002135 return 0;
2136}
2137
2138static void p54_remove_interface(struct ieee80211_hw *dev,
2139 struct ieee80211_if_init_conf *conf)
2140{
2141 struct p54_common *priv = dev->priv;
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002142
2143 mutex_lock(&priv->conf_mutex);
Christian Lamparterf13027a2009-03-25 03:12:49 +01002144 priv->vif = NULL;
Christian Lampartere5ea92a2008-10-18 23:19:00 +02002145 if (priv->cached_beacon)
2146 p54_tx_cancel(dev, priv->cached_beacon);
Johannes Berg05c914f2008-09-11 00:01:58 +02002147 priv->mode = NL80211_IFTYPE_MONITOR;
Johannes Berg4150c572007-09-17 01:29:23 -04002148 memset(priv->mac_addr, 0, ETH_ALEN);
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002149 memset(priv->bssid, 0, ETH_ALEN);
2150 p54_setup_mac(dev);
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002151 mutex_unlock(&priv->conf_mutex);
Michael Wueff1a592007-09-25 18:11:01 -07002152}
2153
Johannes Berge8975582008-10-09 12:18:51 +02002154static int p54_config(struct ieee80211_hw *dev, u32 changed)
Michael Wueff1a592007-09-25 18:11:01 -07002155{
John W. Linville26d15972009-01-12 14:46:39 -05002156 int ret = 0;
Larry Finger6041e2a2008-08-03 17:58:36 -05002157 struct p54_common *priv = dev->priv;
Johannes Berge8975582008-10-09 12:18:51 +02002158 struct ieee80211_conf *conf = &dev->conf;
Michael Wueff1a592007-09-25 18:11:01 -07002159
Larry Finger6041e2a2008-08-03 17:58:36 -05002160 mutex_lock(&priv->conf_mutex);
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002161 if (changed & IEEE80211_CONF_CHANGE_POWER)
2162 priv->output_power = conf->power_level << 2;
2163 if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) {
2164 ret = p54_setup_mac(dev);
2165 if (ret)
2166 goto out;
2167 }
2168 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
Christian Lamparter69ba3e52008-12-14 14:45:30 +01002169 ret = p54_scan(dev, P54_SCAN_EXIT, 0);
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002170 if (ret)
2171 goto out;
2172 }
Christian Lamparter2b8d4e22008-12-30 13:48:41 +01002173 if (changed & IEEE80211_CONF_CHANGE_PS) {
2174 ret = p54_set_ps(dev);
2175 if (ret)
2176 goto out;
2177 }
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002178
2179out:
Larry Finger6041e2a2008-08-03 17:58:36 -05002180 mutex_unlock(&priv->conf_mutex);
Michael Wueff1a592007-09-25 18:11:01 -07002181 return ret;
2182}
2183
Johannes Berg4150c572007-09-17 01:29:23 -04002184static void p54_configure_filter(struct ieee80211_hw *dev,
2185 unsigned int changed_flags,
2186 unsigned int *total_flags,
2187 int mc_count, struct dev_mc_list *mclist)
2188{
2189 struct p54_common *priv = dev->priv;
2190
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002191 *total_flags &= FIF_PROMISC_IN_BSS |
Christian Lamparter346de732009-03-05 21:28:57 +01002192 FIF_OTHER_BSS;
Christian Lamparter78d57eb2008-09-06 02:56:12 +02002193
2194 priv->filter_flags = *total_flags;
Johannes Berg4150c572007-09-17 01:29:23 -04002195
Christian Lamparter51eed992008-12-30 13:48:29 +01002196 if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS))
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002197 p54_setup_mac(dev);
Johannes Berg4150c572007-09-17 01:29:23 -04002198}
2199
Johannes Berge100bb62008-04-30 18:51:21 +02002200static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue,
Michael Wueff1a592007-09-25 18:11:01 -07002201 const struct ieee80211_tx_queue_params *params)
2202{
2203 struct p54_common *priv = dev->priv;
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002204 int ret;
Michael Wueff1a592007-09-25 18:11:01 -07002205
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002206 mutex_lock(&priv->conf_mutex);
John W. Linville3df5ee62008-05-01 17:07:32 -04002207 if ((params) && !(queue > 4)) {
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02002208 P54_SET_QUEUE(priv->qos_params[queue], params->aifs,
Johannes Berg3330d7be2008-02-10 16:49:38 +01002209 params->cw_min, params->cw_max, params->txop);
Christian Lamparterb50563a2008-11-24 14:52:51 +01002210 ret = p54_set_edcf(dev);
Michael Wueff1a592007-09-25 18:11:01 -07002211 } else
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002212 ret = -EINVAL;
Christian Lamparter9e7f3f82008-10-18 23:18:01 +02002213 mutex_unlock(&priv->conf_mutex);
2214 return ret;
Michael Wueff1a592007-09-25 18:11:01 -07002215}
2216
Christian Lamparter1b997532008-09-06 14:25:58 +02002217static int p54_init_xbow_synth(struct ieee80211_hw *dev)
2218{
2219 struct p54_common *priv = dev->priv;
Christian Lamparterb92f30d2008-10-15 04:07:16 +02002220 struct sk_buff *skb;
John W. Linville27df6052008-10-22 16:41:55 -04002221 struct p54_xbow_synth *xbow;
Christian Lamparter1b997532008-09-06 14:25:58 +02002222
Christian Lamparter63f2dc92009-01-09 21:05:31 +01002223 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*xbow),
2224 P54_CONTROL_TYPE_XBOW_SYNTH_CFG, GFP_KERNEL);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02002225 if (!skb)
Christian Lamparter1b997532008-09-06 14:25:58 +02002226 return -ENOMEM;
2227
John W. Linville27df6052008-10-22 16:41:55 -04002228 xbow = (struct p54_xbow_synth *)skb_put(skb, sizeof(*xbow));
Christian Lamparter1b997532008-09-06 14:25:58 +02002229 xbow->magic1 = cpu_to_le16(0x1);
2230 xbow->magic2 = cpu_to_le16(0x2);
2231 xbow->freq = cpu_to_le16(5390);
Christian Lamparterb92f30d2008-10-15 04:07:16 +02002232 memset(xbow->padding, 0, sizeof(xbow->padding));
Christian Lamparter0a5ec962008-12-14 15:05:42 +01002233 priv->tx(dev, skb);
Christian Lamparter1b997532008-09-06 14:25:58 +02002234 return 0;
2235}
2236
Christian Lamparter54fdb042008-12-13 14:14:20 +01002237static void p54_work(struct work_struct *work)
Christian Lampartercc6de662008-09-06 02:56:23 +02002238{
Christian Lamparter54fdb042008-12-13 14:14:20 +01002239 struct p54_common *priv = container_of(work, struct p54_common,
2240 work.work);
2241 struct ieee80211_hw *dev = priv->hw;
2242 struct sk_buff *skb;
Christian Lampartercc6de662008-09-06 02:56:23 +02002243
Christian Lamparter54fdb042008-12-13 14:14:20 +01002244 if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
2245 return ;
Christian Lampartercc6de662008-09-06 02:56:23 +02002246
Christian Lamparter54fdb042008-12-13 14:14:20 +01002247 /*
2248 * TODO: walk through tx_queue and do the following tasks
2249 * 1. initiate bursts.
2250 * 2. cancel stuck frames / reset the device if necessary.
2251 */
2252
Christian Lamparter63f2dc92009-01-09 21:05:31 +01002253 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL,
Christian Lamparter54fdb042008-12-13 14:14:20 +01002254 sizeof(struct p54_statistics),
2255 P54_CONTROL_TYPE_STAT_READBACK, GFP_KERNEL);
2256 if (!skb)
2257 return ;
2258
Christian Lamparter0a5ec962008-12-14 15:05:42 +01002259 priv->tx(dev, skb);
Christian Lampartercc6de662008-09-06 02:56:23 +02002260}
2261
Michael Wueff1a592007-09-25 18:11:01 -07002262static int p54_get_stats(struct ieee80211_hw *dev,
2263 struct ieee80211_low_level_stats *stats)
2264{
Christian Lampartercc6de662008-09-06 02:56:23 +02002265 struct p54_common *priv = dev->priv;
2266
Christian Lampartercc6de662008-09-06 02:56:23 +02002267 memcpy(stats, &priv->stats, sizeof(*stats));
Michael Wueff1a592007-09-25 18:11:01 -07002268 return 0;
2269}
2270
2271static int p54_get_tx_stats(struct ieee80211_hw *dev,
2272 struct ieee80211_tx_queue_stats *stats)
2273{
2274 struct p54_common *priv = dev->priv;
Michael Wueff1a592007-09-25 18:11:01 -07002275
Christian Lampartera15bd002008-12-21 20:54:34 +01002276 memcpy(stats, &priv->tx_stats[P54_QUEUE_DATA],
2277 sizeof(stats[0]) * dev->queues);
Michael Wueff1a592007-09-25 18:11:01 -07002278 return 0;
2279}
2280
Christian Lamparter40333e42008-10-08 20:52:22 +02002281static void p54_bss_info_changed(struct ieee80211_hw *dev,
2282 struct ieee80211_vif *vif,
2283 struct ieee80211_bss_conf *info,
2284 u32 changed)
2285{
2286 struct p54_common *priv = dev->priv;
Johannes Berg2d0ddec2009-04-23 16:13:26 +02002287 int ret;
Christian Lamparter40333e42008-10-08 20:52:22 +02002288
Johannes Berg2d0ddec2009-04-23 16:13:26 +02002289 mutex_lock(&priv->conf_mutex);
2290 if (changed & BSS_CHANGED_BSSID) {
2291 memcpy(priv->bssid, info->bssid, ETH_ALEN);
2292 ret = p54_setup_mac(dev);
2293 if (ret)
2294 goto out;
2295 }
2296
2297 if (changed & BSS_CHANGED_BEACON) {
2298 ret = p54_scan(dev, P54_SCAN_EXIT, 0);
2299 if (ret)
2300 goto out;
2301 ret = p54_setup_mac(dev);
2302 if (ret)
2303 goto out;
2304 ret = p54_beacon_update(dev, vif);
2305 if (ret)
2306 goto out;
2307 }
2308 /* XXX: this mimics having two callbacks... clean up */
2309 out:
2310 mutex_unlock(&priv->conf_mutex);
2311
2312 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_BEACON)) {
Christian Lamparter40333e42008-10-08 20:52:22 +02002313 priv->use_short_slot = info->use_short_slot;
Christian Lamparter0fdd7c52008-10-15 03:55:37 +02002314 p54_set_edcf(dev);
Christian Lamparter40333e42008-10-08 20:52:22 +02002315 }
Christian Lamparterced09572008-11-14 19:42:39 +01002316 if (changed & BSS_CHANGED_BASIC_RATES) {
2317 if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
2318 priv->basic_rate_mask = (info->basic_rates << 4);
2319 else
2320 priv->basic_rate_mask = info->basic_rates;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002321 p54_setup_mac(dev);
Christian Lamparterced09572008-11-14 19:42:39 +01002322 if (priv->fw_var >= 0x500)
Christian Lamparter69ba3e52008-12-14 14:45:30 +01002323 p54_scan(dev, P54_SCAN_EXIT, 0);
Christian Lamparterced09572008-11-14 19:42:39 +01002324 }
2325 if (changed & BSS_CHANGED_ASSOC) {
2326 if (info->assoc) {
2327 priv->aid = info->aid;
2328 priv->wakeup_timer = info->beacon_int *
2329 info->dtim_period * 5;
Christian Lamparterb2023dd2008-11-29 22:37:31 +01002330 p54_setup_mac(dev);
Christian Lamparterced09572008-11-14 19:42:39 +01002331 }
2332 }
Christian Lamparter40333e42008-10-08 20:52:22 +02002333}
2334
Christian Lamparter25900ef2008-11-29 22:34:37 +01002335static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
Johannes Bergdc822b52008-12-29 12:55:09 +01002336 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
Christian Lamparter25900ef2008-11-29 22:34:37 +01002337 struct ieee80211_key_conf *key)
2338{
2339 struct p54_common *priv = dev->priv;
2340 struct sk_buff *skb;
2341 struct p54_keycache *rxkey;
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002342 int slot, ret = 0;
Christian Lamparter25900ef2008-11-29 22:34:37 +01002343 u8 algo = 0;
2344
2345 if (modparam_nohwcrypt)
2346 return -EOPNOTSUPP;
2347
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002348 mutex_lock(&priv->conf_mutex);
2349 if (cmd == SET_KEY) {
Christian Lamparter25900ef2008-11-29 22:34:37 +01002350 switch (key->alg) {
2351 case ALG_TKIP:
2352 if (!(priv->privacy_caps & (BR_DESC_PRIV_CAP_MICHAEL |
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002353 BR_DESC_PRIV_CAP_TKIP))) {
2354 ret = -EOPNOTSUPP;
2355 goto out_unlock;
2356 }
Christian Lamparter25900ef2008-11-29 22:34:37 +01002357 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2358 algo = P54_CRYPTO_TKIPMICHAEL;
2359 break;
2360 case ALG_WEP:
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002361 if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_WEP)) {
2362 ret = -EOPNOTSUPP;
2363 goto out_unlock;
2364 }
Christian Lamparter25900ef2008-11-29 22:34:37 +01002365 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2366 algo = P54_CRYPTO_WEP;
2367 break;
2368 case ALG_CCMP:
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002369 if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP)) {
2370 ret = -EOPNOTSUPP;
2371 goto out_unlock;
2372 }
Christian Lamparter25900ef2008-11-29 22:34:37 +01002373 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2374 algo = P54_CRYPTO_AESCCMP;
2375 break;
2376 default:
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002377 ret = -EOPNOTSUPP;
2378 goto out_unlock;
Christian Lamparter25900ef2008-11-29 22:34:37 +01002379 }
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002380 slot = bitmap_find_free_region(priv->used_rxkeys,
2381 priv->rx_keycache_size, 0);
2382
2383 if (slot < 0) {
2384 /*
2385 * The device supports the choosen algorithm, but the
2386 * firmware does not provide enough key slots to store
2387 * all of them.
2388 * But encryption offload for outgoing frames is always
2389 * possible, so we just pretend that the upload was
2390 * successful and do the decryption in software.
2391 */
2392
2393 /* mark the key as invalid. */
2394 key->hw_key_idx = 0xff;
2395 goto out_unlock;
2396 }
2397 } else {
2398 slot = key->hw_key_idx;
2399
2400 if (slot == 0xff) {
2401 /* This key was not uploaded into the rx key cache. */
2402
2403 goto out_unlock;
2404 }
2405
2406 bitmap_release_region(priv->used_rxkeys, slot, 0);
2407 algo = 0;
Christian Lamparter25900ef2008-11-29 22:34:37 +01002408 }
2409
Christian Lamparter63f2dc92009-01-09 21:05:31 +01002410 skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*rxkey),
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002411 P54_CONTROL_TYPE_RX_KEYCACHE, GFP_KERNEL);
Christian Lamparter25900ef2008-11-29 22:34:37 +01002412 if (!skb) {
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002413 bitmap_release_region(priv->used_rxkeys, slot, 0);
2414 ret = -ENOSPC;
2415 goto out_unlock;
Christian Lamparter25900ef2008-11-29 22:34:37 +01002416 }
2417
Christian Lamparter25900ef2008-11-29 22:34:37 +01002418 rxkey = (struct p54_keycache *)skb_put(skb, sizeof(*rxkey));
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002419 rxkey->entry = slot;
Christian Lamparter25900ef2008-11-29 22:34:37 +01002420 rxkey->key_id = key->keyidx;
2421 rxkey->key_type = algo;
Johannes Bergdc822b52008-12-29 12:55:09 +01002422 if (sta)
2423 memcpy(rxkey->mac, sta->addr, ETH_ALEN);
Christian Lamparter25900ef2008-11-29 22:34:37 +01002424 else
2425 memset(rxkey->mac, ~0, ETH_ALEN);
2426 if (key->alg != ALG_TKIP) {
2427 rxkey->key_len = min((u8)16, key->keylen);
2428 memcpy(rxkey->key, key->key, rxkey->key_len);
2429 } else {
2430 rxkey->key_len = 24;
2431 memcpy(rxkey->key, key->key, 16);
2432 memcpy(&(rxkey->key[16]), &(key->key
2433 [NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]), 8);
2434 }
2435
Christian Lamparter0a5ec962008-12-14 15:05:42 +01002436 priv->tx(dev, skb);
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002437 key->hw_key_idx = slot;
2438
2439out_unlock:
Christian Lamparter25900ef2008-11-29 22:34:37 +01002440 mutex_unlock(&priv->conf_mutex);
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002441 return ret;
Christian Lamparter25900ef2008-11-29 22:34:37 +01002442}
2443
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +01002444#ifdef CONFIG_P54_LEDS
Christian Lamparterdce07252009-03-25 03:12:18 +01002445static void p54_update_leds(struct work_struct *work)
2446{
2447 struct p54_common *priv = container_of(work, struct p54_common,
2448 led_work.work);
2449 int err, i, tmp, blink_delay = 400;
2450 bool rerun = false;
2451
2452 /* Don't toggle the LED, when the device is down. */
2453 if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
2454 return ;
2455
2456 for (i = 0; i < ARRAY_SIZE(priv->leds); i++)
2457 if (priv->leds[i].toggled) {
2458 priv->softled_state |= BIT(i);
2459
2460 tmp = 70 + 200 / (priv->leds[i].toggled);
2461 if (tmp < blink_delay)
2462 blink_delay = tmp;
2463
2464 if (priv->leds[i].led_dev.brightness == LED_OFF)
2465 rerun = true;
2466
2467 priv->leds[i].toggled =
2468 !!priv->leds[i].led_dev.brightness;
2469 } else
2470 priv->softled_state &= ~BIT(i);
2471
2472 err = p54_set_leds(priv->hw);
2473 if (err && net_ratelimit())
2474 printk(KERN_ERR "%s: failed to update LEDs.\n",
2475 wiphy_name(priv->hw->wiphy));
2476
2477 if (rerun)
2478 queue_delayed_work(priv->hw->workqueue, &priv->led_work,
2479 msecs_to_jiffies(blink_delay));
2480}
2481
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002482static void p54_led_brightness_set(struct led_classdev *led_dev,
2483 enum led_brightness brightness)
2484{
2485 struct p54_led_dev *led = container_of(led_dev, struct p54_led_dev,
2486 led_dev);
2487 struct ieee80211_hw *dev = led->hw_dev;
2488 struct p54_common *priv = dev->priv;
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002489
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002490 if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
2491 return ;
2492
Christian Lamparterdce07252009-03-25 03:12:18 +01002493 if (brightness) {
2494 led->toggled++;
2495 queue_delayed_work(priv->hw->workqueue, &priv->led_work,
2496 HZ/10);
2497 }
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002498}
2499
2500static int p54_register_led(struct ieee80211_hw *dev,
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002501 unsigned int led_index,
2502 char *name, char *trigger)
2503{
Christian Lamparterdce07252009-03-25 03:12:18 +01002504 struct p54_common *priv = dev->priv;
2505 struct p54_led_dev *led = &priv->leds[led_index];
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002506 int err;
2507
2508 if (led->registered)
2509 return -EEXIST;
2510
2511 snprintf(led->name, sizeof(led->name), "p54-%s::%s",
2512 wiphy_name(dev->wiphy), name);
2513 led->hw_dev = dev;
2514 led->index = led_index;
2515 led->led_dev.name = led->name;
2516 led->led_dev.default_trigger = trigger;
2517 led->led_dev.brightness_set = p54_led_brightness_set;
2518
2519 err = led_classdev_register(wiphy_dev(dev->wiphy), &led->led_dev);
2520 if (err)
2521 printk(KERN_ERR "%s: Failed to register %s LED.\n",
2522 wiphy_name(dev->wiphy), name);
2523 else
2524 led->registered = 1;
2525
2526 return err;
2527}
2528
2529static int p54_init_leds(struct ieee80211_hw *dev)
2530{
2531 struct p54_common *priv = dev->priv;
2532 int err;
2533
2534 /*
2535 * TODO:
2536 * Figure out if the EEPROM contains some hints about the number
2537 * of available/programmable LEDs of the device.
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002538 */
2539
Christian Lamparterdce07252009-03-25 03:12:18 +01002540 INIT_DELAYED_WORK(&priv->led_work, p54_update_leds);
2541
2542 err = p54_register_led(dev, 0, "assoc",
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002543 ieee80211_get_assoc_led_name(dev));
2544 if (err)
2545 return err;
2546
Christian Lamparterdce07252009-03-25 03:12:18 +01002547 err = p54_register_led(dev, 1, "tx",
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002548 ieee80211_get_tx_led_name(dev));
2549 if (err)
2550 return err;
2551
Christian Lamparterdce07252009-03-25 03:12:18 +01002552 err = p54_register_led(dev, 2, "rx",
2553 ieee80211_get_rx_led_name(dev));
2554 if (err)
2555 return err;
2556
2557 err = p54_register_led(dev, 3, "radio",
2558 ieee80211_get_radio_led_name(dev));
2559 if (err)
2560 return err;
2561
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002562 err = p54_set_leds(dev);
2563 return err;
2564}
2565
2566static void p54_unregister_leds(struct ieee80211_hw *dev)
2567{
2568 struct p54_common *priv = dev->priv;
Christian Lamparterdce07252009-03-25 03:12:18 +01002569 int i;
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002570
Christian Lamparterdce07252009-03-25 03:12:18 +01002571 for (i = 0; i < ARRAY_SIZE(priv->leds); i++)
2572 if (priv->leds[i].registered)
2573 led_classdev_unregister(&priv->leds[i].led_dev);
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002574}
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +01002575#endif /* CONFIG_P54_LEDS */
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002576
Michael Wueff1a592007-09-25 18:11:01 -07002577static const struct ieee80211_ops p54_ops = {
2578 .tx = p54_tx,
Johannes Berg4150c572007-09-17 01:29:23 -04002579 .start = p54_start,
2580 .stop = p54_stop,
Michael Wueff1a592007-09-25 18:11:01 -07002581 .add_interface = p54_add_interface,
2582 .remove_interface = p54_remove_interface,
Christian Lampartere5ea92a2008-10-18 23:19:00 +02002583 .set_tim = p54_set_tim,
Christian Lamparterc772a082008-11-29 22:33:57 +01002584 .sta_notify = p54_sta_notify,
Christian Lamparter25900ef2008-11-29 22:34:37 +01002585 .set_key = p54_set_key,
Michael Wueff1a592007-09-25 18:11:01 -07002586 .config = p54_config,
Christian Lamparter40333e42008-10-08 20:52:22 +02002587 .bss_info_changed = p54_bss_info_changed,
Johannes Berg4150c572007-09-17 01:29:23 -04002588 .configure_filter = p54_configure_filter,
Michael Wueff1a592007-09-25 18:11:01 -07002589 .conf_tx = p54_conf_tx,
2590 .get_stats = p54_get_stats,
2591 .get_tx_stats = p54_get_tx_stats
2592};
2593
2594struct ieee80211_hw *p54_init_common(size_t priv_data_len)
2595{
2596 struct ieee80211_hw *dev;
2597 struct p54_common *priv;
Michael Wueff1a592007-09-25 18:11:01 -07002598
2599 dev = ieee80211_alloc_hw(priv_data_len, &p54_ops);
2600 if (!dev)
2601 return NULL;
2602
2603 priv = dev->priv;
Christian Lamparter54fdb042008-12-13 14:14:20 +01002604 priv->hw = dev;
Johannes Berg05c914f2008-09-11 00:01:58 +02002605 priv->mode = NL80211_IFTYPE_UNSPECIFIED;
Christian Lamparterced09572008-11-14 19:42:39 +01002606 priv->basic_rate_mask = 0x15f;
Michael Wueff1a592007-09-25 18:11:01 -07002607 skb_queue_head_init(&priv->tx_queue);
Christian Lamparter94585b02008-10-18 23:18:44 +02002608 dev->flags = IEEE80211_HW_RX_INCLUDES_FCS |
Christian Lampartercc6de662008-09-06 02:56:23 +02002609 IEEE80211_HW_SIGNAL_DBM |
Christian Lamparterfade5db2009-04-17 15:14:22 +02002610 IEEE80211_HW_NOISE_DBM;
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -07002611
Christian Lamparterd131bb52008-11-15 17:02:31 +01002612 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2613 BIT(NL80211_IFTYPE_ADHOC) |
2614 BIT(NL80211_IFTYPE_AP) |
2615 BIT(NL80211_IFTYPE_MESH_POINT);
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -07002616
Michael Wueff1a592007-09-25 18:11:01 -07002617 dev->channel_change_time = 1000; /* TODO: find actual value */
Christian Lampartera15bd002008-12-21 20:54:34 +01002618 priv->tx_stats[P54_QUEUE_BEACON].limit = 1;
2619 priv->tx_stats[P54_QUEUE_FWSCAN].limit = 1;
2620 priv->tx_stats[P54_QUEUE_MGMT].limit = 3;
2621 priv->tx_stats[P54_QUEUE_CAB].limit = 3;
2622 priv->tx_stats[P54_QUEUE_DATA].limit = 5;
Michael Wueff1a592007-09-25 18:11:01 -07002623 dev->queues = 1;
Christian Lampartercc6de662008-09-06 02:56:23 +02002624 priv->noise = -94;
Johannes Bergc12abae2008-10-14 16:56:51 +02002625 /*
2626 * We support at most 8 tries no matter which rate they're at,
2627 * we cannot support max_rates * max_rate_tries as we set it
2628 * here, but setting it correctly to 4/2 or so would limit us
2629 * artificially if the RC algorithm wants just two rates, so
2630 * let's say 4/7, we'll redistribute it at TX time, see the
2631 * comments there.
2632 */
2633 dev->max_rates = 4;
2634 dev->max_rate_tries = 7;
John W. Linville27df6052008-10-22 16:41:55 -04002635 dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 +
2636 sizeof(struct p54_tx_data);
Michael Wueff1a592007-09-25 18:11:01 -07002637
Larry Finger6041e2a2008-08-03 17:58:36 -05002638 mutex_init(&priv->conf_mutex);
Christian Lamparter7cb77072008-09-01 22:48:51 +02002639 init_completion(&priv->eeprom_comp);
Christian Lamparter54fdb042008-12-13 14:14:20 +01002640 INIT_DELAYED_WORK(&priv->work, p54_work);
Michael Wueff1a592007-09-25 18:11:01 -07002641
Michael Wueff1a592007-09-25 18:11:01 -07002642 return dev;
2643}
2644EXPORT_SYMBOL_GPL(p54_init_common);
2645
Christian Lamparter2ac71072009-03-05 21:30:10 +01002646int p54_register_common(struct ieee80211_hw *dev, struct device *pdev)
2647{
2648 int err;
2649
2650 err = ieee80211_register_hw(dev);
2651 if (err) {
2652 dev_err(pdev, "Cannot register device (%d).\n", err);
2653 return err;
2654 }
2655
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +01002656#ifdef CONFIG_P54_LEDS
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002657 err = p54_init_leds(dev);
2658 if (err)
2659 return err;
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +01002660#endif /* CONFIG_P54_LEDS */
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002661
Christian Lamparter2ac71072009-03-05 21:30:10 +01002662 dev_info(pdev, "is registered as '%s'\n", wiphy_name(dev->wiphy));
2663 return 0;
2664}
2665EXPORT_SYMBOL_GPL(p54_register_common);
2666
Michael Wueff1a592007-09-25 18:11:01 -07002667void p54_free_common(struct ieee80211_hw *dev)
2668{
2669 struct p54_common *priv = dev->priv;
Michael Wueff1a592007-09-25 18:11:01 -07002670 kfree(priv->iq_autocal);
2671 kfree(priv->output_limit);
2672 kfree(priv->curve_data);
Christian Lamparter6dfe9a82009-04-11 03:58:01 +02002673 kfree(priv->used_rxkeys);
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002674
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +01002675#ifdef CONFIG_P54_LEDS
Christian Lamparterd0b45ae2009-03-06 01:02:04 +01002676 p54_unregister_leds(dev);
Christian Lamparterd8cd7ef2009-03-23 15:37:45 +01002677#endif /* CONFIG_P54_LEDS */
Michael Wueff1a592007-09-25 18:11:01 -07002678}
2679EXPORT_SYMBOL_GPL(p54_free_common);