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[mirror_ubuntu-jammy-kernel.git] / drivers / net / wireless / p54 / eeprom.c
1 /*
2 * EEPROM parser code for mac80211 Prism54 drivers
3 *
4 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
5 * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
6 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
7 *
8 * Based on:
9 * - the islsm (softmac prism54) driver, which is:
10 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
11 * - stlc45xx driver
12 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
19 #include <linux/init.h>
20 #include <linux/firmware.h>
21 #include <linux/etherdevice.h>
22 #include <linux/sort.h>
23 #include <linux/slab.h>
24
25 #include <net/mac80211.h>
26
27 #include "p54.h"
28 #include "eeprom.h"
29 #include "lmac.h"
30
31 static struct ieee80211_rate p54_bgrates[] = {
32 { .bitrate = 10, .hw_value = 0, },
33 { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
34 { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
35 { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
36 { .bitrate = 60, .hw_value = 4, },
37 { .bitrate = 90, .hw_value = 5, },
38 { .bitrate = 120, .hw_value = 6, },
39 { .bitrate = 180, .hw_value = 7, },
40 { .bitrate = 240, .hw_value = 8, },
41 { .bitrate = 360, .hw_value = 9, },
42 { .bitrate = 480, .hw_value = 10, },
43 { .bitrate = 540, .hw_value = 11, },
44 };
45
46 static struct ieee80211_rate p54_arates[] = {
47 { .bitrate = 60, .hw_value = 4, },
48 { .bitrate = 90, .hw_value = 5, },
49 { .bitrate = 120, .hw_value = 6, },
50 { .bitrate = 180, .hw_value = 7, },
51 { .bitrate = 240, .hw_value = 8, },
52 { .bitrate = 360, .hw_value = 9, },
53 { .bitrate = 480, .hw_value = 10, },
54 { .bitrate = 540, .hw_value = 11, },
55 };
56
57 #define CHAN_HAS_CAL BIT(0)
58 #define CHAN_HAS_LIMIT BIT(1)
59 #define CHAN_HAS_CURVE BIT(2)
60 #define CHAN_HAS_ALL (CHAN_HAS_CAL | CHAN_HAS_LIMIT | CHAN_HAS_CURVE)
61
62 struct p54_channel_entry {
63 u16 freq;
64 u16 data;
65 int index;
66 enum ieee80211_band band;
67 };
68
69 struct p54_channel_list {
70 struct p54_channel_entry *channels;
71 size_t entries;
72 size_t max_entries;
73 size_t band_channel_num[IEEE80211_NUM_BANDS];
74 };
75
76 static int p54_get_band_from_freq(u16 freq)
77 {
78 /* FIXME: sync these values with the 802.11 spec */
79
80 if ((freq >= 2412) && (freq <= 2484))
81 return IEEE80211_BAND_2GHZ;
82
83 if ((freq >= 4920) && (freq <= 5825))
84 return IEEE80211_BAND_5GHZ;
85
86 return -1;
87 }
88
89 static int p54_compare_channels(const void *_a,
90 const void *_b)
91 {
92 const struct p54_channel_entry *a = _a;
93 const struct p54_channel_entry *b = _b;
94
95 return a->index - b->index;
96 }
97
98 static int p54_fill_band_bitrates(struct ieee80211_hw *dev,
99 struct ieee80211_supported_band *band_entry,
100 enum ieee80211_band band)
101 {
102 /* TODO: generate rate array dynamically */
103
104 switch (band) {
105 case IEEE80211_BAND_2GHZ:
106 band_entry->bitrates = p54_bgrates;
107 band_entry->n_bitrates = ARRAY_SIZE(p54_bgrates);
108 break;
109 case IEEE80211_BAND_5GHZ:
110 band_entry->bitrates = p54_arates;
111 band_entry->n_bitrates = ARRAY_SIZE(p54_arates);
112 break;
113 default:
114 return -EINVAL;
115 }
116
117 return 0;
118 }
119
120 static int p54_generate_band(struct ieee80211_hw *dev,
121 struct p54_channel_list *list,
122 enum ieee80211_band band)
123 {
124 struct p54_common *priv = dev->priv;
125 struct ieee80211_supported_band *tmp, *old;
126 unsigned int i, j;
127 int ret = -ENOMEM;
128
129 if ((!list->entries) || (!list->band_channel_num[band]))
130 return -EINVAL;
131
132 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
133 if (!tmp)
134 goto err_out;
135
136 tmp->channels = kzalloc(sizeof(struct ieee80211_channel) *
137 list->band_channel_num[band], GFP_KERNEL);
138 if (!tmp->channels)
139 goto err_out;
140
141 ret = p54_fill_band_bitrates(dev, tmp, band);
142 if (ret)
143 goto err_out;
144
145 for (i = 0, j = 0; (j < list->band_channel_num[band]) &&
146 (i < list->entries); i++) {
147
148 if (list->channels[i].band != band)
149 continue;
150
151 if (list->channels[i].data != CHAN_HAS_ALL) {
152 printk(KERN_ERR "%s:%s%s%s is/are missing for "
153 "channel:%d [%d MHz].\n",
154 wiphy_name(dev->wiphy),
155 (list->channels[i].data & CHAN_HAS_CAL ? "" :
156 " [iqauto calibration data]"),
157 (list->channels[i].data & CHAN_HAS_LIMIT ? "" :
158 " [output power limits]"),
159 (list->channels[i].data & CHAN_HAS_CURVE ? "" :
160 " [curve data]"),
161 list->channels[i].index, list->channels[i].freq);
162 continue;
163 }
164
165 tmp->channels[j].band = list->channels[i].band;
166 tmp->channels[j].center_freq = list->channels[i].freq;
167 j++;
168 }
169
170 if (j == 0) {
171 printk(KERN_ERR "%s: Disabling totally damaged %s band.\n",
172 wiphy_name(dev->wiphy), (band == IEEE80211_BAND_2GHZ) ?
173 "2 GHz" : "5 GHz");
174
175 ret = -ENODATA;
176 goto err_out;
177 }
178
179 tmp->n_channels = j;
180 old = priv->band_table[band];
181 priv->band_table[band] = tmp;
182 if (old) {
183 kfree(old->channels);
184 kfree(old);
185 }
186
187 return 0;
188
189 err_out:
190 if (tmp) {
191 kfree(tmp->channels);
192 kfree(tmp);
193 }
194
195 return ret;
196 }
197
198 static void p54_update_channel_param(struct p54_channel_list *list,
199 u16 freq, u16 data)
200 {
201 int band, i;
202
203 /*
204 * usually all lists in the eeprom are mostly sorted.
205 * so it's very likely that the entry we are looking for
206 * is right at the end of the list
207 */
208 for (i = list->entries; i >= 0; i--) {
209 if (freq == list->channels[i].freq) {
210 list->channels[i].data |= data;
211 break;
212 }
213 }
214
215 if ((i < 0) && (list->entries < list->max_entries)) {
216 /* entry does not exist yet. Initialize a new one. */
217 band = p54_get_band_from_freq(freq);
218
219 /*
220 * filter out frequencies which don't belong into
221 * any supported band.
222 */
223 if (band < 0)
224 return ;
225
226 i = list->entries++;
227 list->band_channel_num[band]++;
228
229 list->channels[i].freq = freq;
230 list->channels[i].data = data;
231 list->channels[i].band = band;
232 list->channels[i].index = ieee80211_frequency_to_channel(freq);
233 /* TODO: parse output_limit and fill max_power */
234 }
235 }
236
237 static int p54_generate_channel_lists(struct ieee80211_hw *dev)
238 {
239 struct p54_common *priv = dev->priv;
240 struct p54_channel_list *list;
241 unsigned int i, j, max_channel_num;
242 int ret = 0;
243 u16 freq;
244
245 if ((priv->iq_autocal_len != priv->curve_data->entries) ||
246 (priv->iq_autocal_len != priv->output_limit->entries))
247 printk(KERN_ERR "%s: Unsupported or damaged EEPROM detected. "
248 "You may not be able to use all channels.\n",
249 wiphy_name(dev->wiphy));
250
251 max_channel_num = max_t(unsigned int, priv->output_limit->entries,
252 priv->iq_autocal_len);
253 max_channel_num = max_t(unsigned int, max_channel_num,
254 priv->curve_data->entries);
255
256 list = kzalloc(sizeof(*list), GFP_KERNEL);
257 if (!list) {
258 ret = -ENOMEM;
259 goto free;
260 }
261
262 list->max_entries = max_channel_num;
263 list->channels = kzalloc(sizeof(struct p54_channel_entry) *
264 max_channel_num, GFP_KERNEL);
265 if (!list->channels)
266 goto free;
267
268 for (i = 0; i < max_channel_num; i++) {
269 if (i < priv->iq_autocal_len) {
270 freq = le16_to_cpu(priv->iq_autocal[i].freq);
271 p54_update_channel_param(list, freq, CHAN_HAS_CAL);
272 }
273
274 if (i < priv->output_limit->entries) {
275 freq = le16_to_cpup((__le16 *) (i *
276 priv->output_limit->entry_size +
277 priv->output_limit->offset +
278 priv->output_limit->data));
279
280 p54_update_channel_param(list, freq, CHAN_HAS_LIMIT);
281 }
282
283 if (i < priv->curve_data->entries) {
284 freq = le16_to_cpup((__le16 *) (i *
285 priv->curve_data->entry_size +
286 priv->curve_data->offset +
287 priv->curve_data->data));
288
289 p54_update_channel_param(list, freq, CHAN_HAS_CURVE);
290 }
291 }
292
293 /* sort the list by the channel index */
294 sort(list->channels, list->entries, sizeof(struct p54_channel_entry),
295 p54_compare_channels, NULL);
296
297 for (i = 0, j = 0; i < IEEE80211_NUM_BANDS; i++) {
298 if (p54_generate_band(dev, list, i) == 0)
299 j++;
300 }
301 if (j == 0) {
302 /* no useable band available. */
303 ret = -EINVAL;
304 }
305
306 free:
307 if (list) {
308 kfree(list->channels);
309 kfree(list);
310 }
311
312 return ret;
313 }
314
315 static int p54_convert_rev0(struct ieee80211_hw *dev,
316 struct pda_pa_curve_data *curve_data)
317 {
318 struct p54_common *priv = dev->priv;
319 struct p54_pa_curve_data_sample *dst;
320 struct pda_pa_curve_data_sample_rev0 *src;
321 size_t cd_len = sizeof(*curve_data) +
322 (curve_data->points_per_channel*sizeof(*dst) + 2) *
323 curve_data->channels;
324 unsigned int i, j;
325 void *source, *target;
326
327 priv->curve_data = kmalloc(sizeof(*priv->curve_data) + cd_len,
328 GFP_KERNEL);
329 if (!priv->curve_data)
330 return -ENOMEM;
331
332 priv->curve_data->entries = curve_data->channels;
333 priv->curve_data->entry_size = sizeof(__le16) +
334 sizeof(*dst) * curve_data->points_per_channel;
335 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
336 priv->curve_data->len = cd_len;
337 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
338 source = curve_data->data;
339 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data;
340 for (i = 0; i < curve_data->channels; i++) {
341 __le16 *freq = source;
342 source += sizeof(__le16);
343 *((__le16 *)target) = *freq;
344 target += sizeof(__le16);
345 for (j = 0; j < curve_data->points_per_channel; j++) {
346 dst = target;
347 src = source;
348
349 dst->rf_power = src->rf_power;
350 dst->pa_detector = src->pa_detector;
351 dst->data_64qam = src->pcv;
352 /* "invent" the points for the other modulations */
353 #define SUB(x, y) (u8)(((x) - (y)) > (x) ? 0 : (x) - (y))
354 dst->data_16qam = SUB(src->pcv, 12);
355 dst->data_qpsk = SUB(dst->data_16qam, 12);
356 dst->data_bpsk = SUB(dst->data_qpsk, 12);
357 dst->data_barker = SUB(dst->data_bpsk, 14);
358 #undef SUB
359 target += sizeof(*dst);
360 source += sizeof(*src);
361 }
362 }
363
364 return 0;
365 }
366
367 static int p54_convert_rev1(struct ieee80211_hw *dev,
368 struct pda_pa_curve_data *curve_data)
369 {
370 struct p54_common *priv = dev->priv;
371 struct p54_pa_curve_data_sample *dst;
372 struct pda_pa_curve_data_sample_rev1 *src;
373 size_t cd_len = sizeof(*curve_data) +
374 (curve_data->points_per_channel*sizeof(*dst) + 2) *
375 curve_data->channels;
376 unsigned int i, j;
377 void *source, *target;
378
379 priv->curve_data = kzalloc(cd_len + sizeof(*priv->curve_data),
380 GFP_KERNEL);
381 if (!priv->curve_data)
382 return -ENOMEM;
383
384 priv->curve_data->entries = curve_data->channels;
385 priv->curve_data->entry_size = sizeof(__le16) +
386 sizeof(*dst) * curve_data->points_per_channel;
387 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data);
388 priv->curve_data->len = cd_len;
389 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data));
390 source = curve_data->data;
391 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data;
392 for (i = 0; i < curve_data->channels; i++) {
393 __le16 *freq = source;
394 source += sizeof(__le16);
395 *((__le16 *)target) = *freq;
396 target += sizeof(__le16);
397 for (j = 0; j < curve_data->points_per_channel; j++) {
398 memcpy(target, source, sizeof(*src));
399
400 target += sizeof(*dst);
401 source += sizeof(*src);
402 }
403 source++;
404 }
405
406 return 0;
407 }
408
409 static const char *p54_rf_chips[] = { "INVALID-0", "Duette3", "Duette2",
410 "Frisbee", "Xbow", "Longbow", "INVALID-6", "INVALID-7" };
411
412 static void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len,
413 u16 type)
414 {
415 struct p54_common *priv = dev->priv;
416 int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0;
417 int entry_size = sizeof(struct pda_rssi_cal_entry) + offset;
418 int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2;
419 int i;
420
421 if (len != (entry_size * num_entries)) {
422 printk(KERN_ERR "%s: unknown rssi calibration data packing "
423 " type:(%x) len:%d.\n",
424 wiphy_name(dev->wiphy), type, len);
425
426 print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE,
427 data, len);
428
429 printk(KERN_ERR "%s: please report this issue.\n",
430 wiphy_name(dev->wiphy));
431 return;
432 }
433
434 for (i = 0; i < num_entries; i++) {
435 struct pda_rssi_cal_entry *cal = data +
436 (offset + i * entry_size);
437 priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul);
438 priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add);
439 }
440 }
441
442 static void p54_parse_default_country(struct ieee80211_hw *dev,
443 void *data, int len)
444 {
445 struct pda_country *country;
446
447 if (len != sizeof(*country)) {
448 printk(KERN_ERR "%s: found possible invalid default country "
449 "eeprom entry. (entry size: %d)\n",
450 wiphy_name(dev->wiphy), len);
451
452 print_hex_dump_bytes("country:", DUMP_PREFIX_NONE,
453 data, len);
454
455 printk(KERN_ERR "%s: please report this issue.\n",
456 wiphy_name(dev->wiphy));
457 return;
458 }
459
460 country = (struct pda_country *) data;
461 if (country->flags == PDR_COUNTRY_CERT_CODE_PSEUDO)
462 regulatory_hint(dev->wiphy, country->alpha2);
463 else {
464 /* TODO:
465 * write a shared/common function that converts
466 * "Regulatory domain codes" (802.11-2007 14.8.2.2)
467 * into ISO/IEC 3166-1 alpha2 for regulatory_hint.
468 */
469 }
470 }
471
472 static int p54_convert_output_limits(struct ieee80211_hw *dev,
473 u8 *data, size_t len)
474 {
475 struct p54_common *priv = dev->priv;
476
477 if (len < 2)
478 return -EINVAL;
479
480 if (data[0] != 0) {
481 printk(KERN_ERR "%s: unknown output power db revision:%x\n",
482 wiphy_name(dev->wiphy), data[0]);
483 return -EINVAL;
484 }
485
486 if (2 + data[1] * sizeof(struct pda_channel_output_limit) > len)
487 return -EINVAL;
488
489 priv->output_limit = kmalloc(data[1] *
490 sizeof(struct pda_channel_output_limit) +
491 sizeof(*priv->output_limit), GFP_KERNEL);
492
493 if (!priv->output_limit)
494 return -ENOMEM;
495
496 priv->output_limit->offset = 0;
497 priv->output_limit->entries = data[1];
498 priv->output_limit->entry_size =
499 sizeof(struct pda_channel_output_limit);
500 priv->output_limit->len = priv->output_limit->entry_size *
501 priv->output_limit->entries +
502 priv->output_limit->offset;
503
504 memcpy(priv->output_limit->data, &data[2],
505 data[1] * sizeof(struct pda_channel_output_limit));
506
507 return 0;
508 }
509
510 static struct p54_cal_database *p54_convert_db(struct pda_custom_wrapper *src,
511 size_t total_len)
512 {
513 struct p54_cal_database *dst;
514 size_t payload_len, entries, entry_size, offset;
515
516 payload_len = le16_to_cpu(src->len);
517 entries = le16_to_cpu(src->entries);
518 entry_size = le16_to_cpu(src->entry_size);
519 offset = le16_to_cpu(src->offset);
520 if (((entries * entry_size + offset) != payload_len) ||
521 (payload_len + sizeof(*src) != total_len))
522 return NULL;
523
524 dst = kmalloc(sizeof(*dst) + payload_len, GFP_KERNEL);
525 if (!dst)
526 return NULL;
527
528 dst->entries = entries;
529 dst->entry_size = entry_size;
530 dst->offset = offset;
531 dst->len = payload_len;
532
533 memcpy(dst->data, src->data, payload_len);
534 return dst;
535 }
536
537 int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
538 {
539 struct p54_common *priv = dev->priv;
540 struct eeprom_pda_wrap *wrap;
541 struct pda_entry *entry;
542 unsigned int data_len, entry_len;
543 void *tmp;
544 int err;
545 u8 *end = (u8 *)eeprom + len;
546 u16 synth = 0;
547
548 wrap = (struct eeprom_pda_wrap *) eeprom;
549 entry = (void *)wrap->data + le16_to_cpu(wrap->len);
550
551 /* verify that at least the entry length/code fits */
552 while ((u8 *)entry <= end - sizeof(*entry)) {
553 entry_len = le16_to_cpu(entry->len);
554 data_len = ((entry_len - 1) << 1);
555
556 /* abort if entry exceeds whole structure */
557 if ((u8 *)entry + sizeof(*entry) + data_len > end)
558 break;
559
560 switch (le16_to_cpu(entry->code)) {
561 case PDR_MAC_ADDRESS:
562 if (data_len != ETH_ALEN)
563 break;
564 SET_IEEE80211_PERM_ADDR(dev, entry->data);
565 break;
566 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS:
567 if (priv->output_limit)
568 break;
569 err = p54_convert_output_limits(dev, entry->data,
570 data_len);
571 if (err)
572 goto err;
573 break;
574 case PDR_PRISM_PA_CAL_CURVE_DATA: {
575 struct pda_pa_curve_data *curve_data =
576 (struct pda_pa_curve_data *)entry->data;
577 if (data_len < sizeof(*curve_data)) {
578 err = -EINVAL;
579 goto err;
580 }
581
582 switch (curve_data->cal_method_rev) {
583 case 0:
584 err = p54_convert_rev0(dev, curve_data);
585 break;
586 case 1:
587 err = p54_convert_rev1(dev, curve_data);
588 break;
589 default:
590 printk(KERN_ERR "%s: unknown curve data "
591 "revision %d\n",
592 wiphy_name(dev->wiphy),
593 curve_data->cal_method_rev);
594 err = -ENODEV;
595 break;
596 }
597 if (err)
598 goto err;
599 }
600 break;
601 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION:
602 priv->iq_autocal = kmalloc(data_len, GFP_KERNEL);
603 if (!priv->iq_autocal) {
604 err = -ENOMEM;
605 goto err;
606 }
607
608 memcpy(priv->iq_autocal, entry->data, data_len);
609 priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry);
610 break;
611 case PDR_DEFAULT_COUNTRY:
612 p54_parse_default_country(dev, entry->data, data_len);
613 break;
614 case PDR_INTERFACE_LIST:
615 tmp = entry->data;
616 while ((u8 *)tmp < entry->data + data_len) {
617 struct exp_if *exp_if = tmp;
618 if (exp_if->if_id == cpu_to_le16(IF_ID_ISL39000))
619 synth = le16_to_cpu(exp_if->variant);
620 tmp += sizeof(*exp_if);
621 }
622 break;
623 case PDR_HARDWARE_PLATFORM_COMPONENT_ID:
624 if (data_len < 2)
625 break;
626 priv->version = *(u8 *)(entry->data + 1);
627 break;
628 case PDR_RSSI_LINEAR_APPROXIMATION:
629 case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND:
630 case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED:
631 p54_parse_rssical(dev, entry->data, data_len,
632 le16_to_cpu(entry->code));
633 break;
634 case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM: {
635 __le16 *src = (void *) entry->data;
636 s16 *dst = (void *) &priv->rssical_db;
637 int i;
638
639 if (data_len != sizeof(priv->rssical_db)) {
640 err = -EINVAL;
641 goto err;
642 }
643 for (i = 0; i < sizeof(priv->rssical_db) /
644 sizeof(*src); i++)
645 *(dst++) = (s16) le16_to_cpu(*(src++));
646 }
647 break;
648 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM: {
649 struct pda_custom_wrapper *pda = (void *) entry->data;
650 if (priv->output_limit || data_len < sizeof(*pda))
651 break;
652 priv->output_limit = p54_convert_db(pda, data_len);
653 }
654 break;
655 case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM: {
656 struct pda_custom_wrapper *pda = (void *) entry->data;
657 if (priv->curve_data || data_len < sizeof(*pda))
658 break;
659 priv->curve_data = p54_convert_db(pda, data_len);
660 }
661 break;
662 case PDR_END:
663 /* make it overrun */
664 entry_len = len;
665 break;
666 default:
667 break;
668 }
669
670 entry = (void *)entry + (entry_len + 1)*2;
671 }
672
673 if (!synth || !priv->iq_autocal || !priv->output_limit ||
674 !priv->curve_data) {
675 printk(KERN_ERR "%s: not all required entries found in eeprom!\n",
676 wiphy_name(dev->wiphy));
677 err = -EINVAL;
678 goto err;
679 }
680
681 err = p54_generate_channel_lists(dev);
682 if (err)
683 goto err;
684
685 priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
686 if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW)
687 p54_init_xbow_synth(priv);
688 if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
689 dev->wiphy->bands[IEEE80211_BAND_2GHZ] =
690 priv->band_table[IEEE80211_BAND_2GHZ];
691 if (!(synth & PDR_SYNTH_5_GHZ_DISABLED))
692 dev->wiphy->bands[IEEE80211_BAND_5GHZ] =
693 priv->band_table[IEEE80211_BAND_5GHZ];
694 if ((synth & PDR_SYNTH_RX_DIV_MASK) == PDR_SYNTH_RX_DIV_SUPPORTED)
695 priv->rx_diversity_mask = 3;
696 if ((synth & PDR_SYNTH_TX_DIV_MASK) == PDR_SYNTH_TX_DIV_SUPPORTED)
697 priv->tx_diversity_mask = 3;
698
699 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
700 u8 perm_addr[ETH_ALEN];
701
702 printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n",
703 wiphy_name(dev->wiphy));
704 random_ether_addr(perm_addr);
705 SET_IEEE80211_PERM_ADDR(dev, perm_addr);
706 }
707
708 printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n",
709 wiphy_name(dev->wiphy), dev->wiphy->perm_addr, priv->version,
710 p54_rf_chips[priv->rxhw]);
711
712 return 0;
713
714 err:
715 kfree(priv->iq_autocal);
716 kfree(priv->output_limit);
717 kfree(priv->curve_data);
718 priv->iq_autocal = NULL;
719 priv->output_limit = NULL;
720 priv->curve_data = NULL;
721
722 printk(KERN_ERR "%s: eeprom parse failed!\n",
723 wiphy_name(dev->wiphy));
724 return err;
725 }
726 EXPORT_SYMBOL_GPL(p54_parse_eeprom);
727
728 int p54_read_eeprom(struct ieee80211_hw *dev)
729 {
730 struct p54_common *priv = dev->priv;
731 size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize;
732 int ret = -ENOMEM;
733 void *eeprom;
734
735 maxblocksize = EEPROM_READBACK_LEN;
736 if (priv->fw_var >= 0x509)
737 maxblocksize -= 0xc;
738 else
739 maxblocksize -= 0x4;
740
741 eeprom = kzalloc(eeprom_size, GFP_KERNEL);
742 if (unlikely(!eeprom))
743 goto free;
744
745 while (eeprom_size) {
746 blocksize = min(eeprom_size, maxblocksize);
747 ret = p54_download_eeprom(priv, (void *) (eeprom + offset),
748 offset, blocksize);
749 if (unlikely(ret))
750 goto free;
751
752 offset += blocksize;
753 eeprom_size -= blocksize;
754 }
755
756 ret = p54_parse_eeprom(dev, eeprom, offset);
757 free:
758 kfree(eeprom);
759 return ret;
760 }
761 EXPORT_SYMBOL_GPL(p54_read_eeprom);
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