eeprom.c revision 27b81bbed881ae93e8c23c216129cdeee86d4051
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 31static 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 46static 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 62struct p54_channel_entry { 63 u16 freq; 64 u16 data; 65 int index; 66 enum ieee80211_band band; 67}; 68 69struct 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 76static 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 89static 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 98static 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 120static 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 189err_out: 190 if (tmp) { 191 kfree(tmp->channels); 192 kfree(tmp); 193 } 194 195 return ret; 196} 197 198static 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 237static 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 306free: 307 if (list) { 308 kfree(list->channels); 309 kfree(list); 310 } 311 312 return ret; 313} 314 315static 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 367static 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 409static const char *p54_rf_chips[] = { "INVALID-0", "Duette3", "Duette2", 410 "Frisbee", "Xbow", "Longbow", "INVALID-6", "INVALID-7" }; 411 412static 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 442static 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 472static 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 510static 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 537int 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 = kmemdup(entry->data, data_len, 603 GFP_KERNEL); 604 if (!priv->iq_autocal) { 605 err = -ENOMEM; 606 goto err; 607 } 608 609 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 714err: 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} 726EXPORT_SYMBOL_GPL(p54_parse_eeprom); 727 728int 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); 757free: 758 kfree(eeprom); 759 return ret; 760} 761EXPORT_SYMBOL_GPL(p54_read_eeprom); 762