eeprom.c revision 93a59d7527147e3656664aa3179f8d19de256081
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 24#include <net/mac80211.h> 25 26#include "p54.h" 27#include "eeprom.h" 28#include "lmac.h" 29 30static struct ieee80211_rate p54_bgrates[] = { 31 { .bitrate = 10, .hw_value = 0, }, 32 { .bitrate = 20, .hw_value = 1, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, 33 { .bitrate = 55, .hw_value = 2, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, 34 { .bitrate = 110, .hw_value = 3, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, 35 { .bitrate = 60, .hw_value = 4, }, 36 { .bitrate = 90, .hw_value = 5, }, 37 { .bitrate = 120, .hw_value = 6, }, 38 { .bitrate = 180, .hw_value = 7, }, 39 { .bitrate = 240, .hw_value = 8, }, 40 { .bitrate = 360, .hw_value = 9, }, 41 { .bitrate = 480, .hw_value = 10, }, 42 { .bitrate = 540, .hw_value = 11, }, 43}; 44 45static struct ieee80211_rate p54_arates[] = { 46 { .bitrate = 60, .hw_value = 4, }, 47 { .bitrate = 90, .hw_value = 5, }, 48 { .bitrate = 120, .hw_value = 6, }, 49 { .bitrate = 180, .hw_value = 7, }, 50 { .bitrate = 240, .hw_value = 8, }, 51 { .bitrate = 360, .hw_value = 9, }, 52 { .bitrate = 480, .hw_value = 10, }, 53 { .bitrate = 540, .hw_value = 11, }, 54}; 55 56#define CHAN_HAS_CAL BIT(0) 57#define CHAN_HAS_LIMIT BIT(1) 58#define CHAN_HAS_CURVE BIT(2) 59#define CHAN_HAS_ALL (CHAN_HAS_CAL | CHAN_HAS_LIMIT | CHAN_HAS_CURVE) 60 61struct p54_channel_entry { 62 u16 freq; 63 u16 data; 64 int index; 65 enum ieee80211_band band; 66}; 67 68struct p54_channel_list { 69 struct p54_channel_entry *channels; 70 size_t entries; 71 size_t max_entries; 72 size_t band_channel_num[IEEE80211_NUM_BANDS]; 73}; 74 75static int p54_get_band_from_freq(u16 freq) 76{ 77 /* FIXME: sync these values with the 802.11 spec */ 78 79 if ((freq >= 2412) && (freq <= 2484)) 80 return IEEE80211_BAND_2GHZ; 81 82 if ((freq >= 4920) && (freq <= 5825)) 83 return IEEE80211_BAND_5GHZ; 84 85 return -1; 86} 87 88static int p54_compare_channels(const void *_a, 89 const void *_b) 90{ 91 const struct p54_channel_entry *a = _a; 92 const struct p54_channel_entry *b = _b; 93 94 return a->index - b->index; 95} 96 97static int p54_fill_band_bitrates(struct ieee80211_hw *dev, 98 struct ieee80211_supported_band *band_entry, 99 enum ieee80211_band band) 100{ 101 /* TODO: generate rate array dynamically */ 102 103 switch (band) { 104 case IEEE80211_BAND_2GHZ: 105 band_entry->bitrates = p54_bgrates; 106 band_entry->n_bitrates = ARRAY_SIZE(p54_bgrates); 107 break; 108 case IEEE80211_BAND_5GHZ: 109 band_entry->bitrates = p54_arates; 110 band_entry->n_bitrates = ARRAY_SIZE(p54_arates); 111 break; 112 default: 113 return -EINVAL; 114 } 115 116 return 0; 117} 118 119static int p54_generate_band(struct ieee80211_hw *dev, 120 struct p54_channel_list *list, 121 enum ieee80211_band band) 122{ 123 struct p54_common *priv = dev->priv; 124 struct ieee80211_supported_band *tmp, *old; 125 unsigned int i, j; 126 int ret = -ENOMEM; 127 128 if ((!list->entries) || (!list->band_channel_num[band])) 129 return -EINVAL; 130 131 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); 132 if (!tmp) 133 goto err_out; 134 135 tmp->channels = kzalloc(sizeof(struct ieee80211_channel) * 136 list->band_channel_num[band], GFP_KERNEL); 137 if (!tmp->channels) 138 goto err_out; 139 140 ret = p54_fill_band_bitrates(dev, tmp, band); 141 if (ret) 142 goto err_out; 143 144 for (i = 0, j = 0; (j < list->band_channel_num[band]) && 145 (i < list->entries); i++) { 146 147 if (list->channels[i].band != band) 148 continue; 149 150 if (list->channels[i].data != CHAN_HAS_ALL) { 151 printk(KERN_ERR "%s:%s%s%s is/are missing for " 152 "channel:%d [%d MHz].\n", 153 wiphy_name(dev->wiphy), 154 (list->channels[i].data & CHAN_HAS_CAL ? "" : 155 " [iqauto calibration data]"), 156 (list->channels[i].data & CHAN_HAS_LIMIT ? "" : 157 " [output power limits]"), 158 (list->channels[i].data & CHAN_HAS_CURVE ? "" : 159 " [curve data]"), 160 list->channels[i].index, list->channels[i].freq); 161 continue; 162 } 163 164 tmp->channels[j].band = list->channels[i].band; 165 tmp->channels[j].center_freq = list->channels[i].freq; 166 j++; 167 } 168 169 if (j == 0) { 170 printk(KERN_ERR "%s: Disabling totally damaged %s band.\n", 171 wiphy_name(dev->wiphy), (band == IEEE80211_BAND_2GHZ) ? 172 "2 GHz" : "5 GHz"); 173 174 ret = -ENODATA; 175 goto err_out; 176 } 177 178 tmp->n_channels = j; 179 old = priv->band_table[band]; 180 priv->band_table[band] = tmp; 181 if (old) { 182 kfree(old->channels); 183 kfree(old); 184 } 185 186 return 0; 187 188err_out: 189 if (tmp) { 190 kfree(tmp->channels); 191 kfree(tmp); 192 } 193 194 return ret; 195} 196 197static void p54_update_channel_param(struct p54_channel_list *list, 198 u16 freq, u16 data) 199{ 200 int band, i; 201 202 /* 203 * usually all lists in the eeprom are mostly sorted. 204 * so it's very likely that the entry we are looking for 205 * is right at the end of the list 206 */ 207 for (i = list->entries; i >= 0; i--) { 208 if (freq == list->channels[i].freq) { 209 list->channels[i].data |= data; 210 break; 211 } 212 } 213 214 if ((i < 0) && (list->entries < list->max_entries)) { 215 /* entry does not exist yet. Initialize a new one. */ 216 band = p54_get_band_from_freq(freq); 217 218 /* 219 * filter out frequencies which don't belong into 220 * any supported band. 221 */ 222 if (band < 0) 223 return ; 224 225 i = list->entries++; 226 list->band_channel_num[band]++; 227 228 list->channels[i].freq = freq; 229 list->channels[i].data = data; 230 list->channels[i].band = band; 231 list->channels[i].index = ieee80211_frequency_to_channel(freq); 232 /* TODO: parse output_limit and fill max_power */ 233 } 234} 235 236static int p54_generate_channel_lists(struct ieee80211_hw *dev) 237{ 238 struct p54_common *priv = dev->priv; 239 struct p54_channel_list *list; 240 unsigned int i, j, max_channel_num; 241 int ret = 0; 242 u16 freq; 243 244 if ((priv->iq_autocal_len != priv->curve_data->entries) || 245 (priv->iq_autocal_len != priv->output_limit->entries)) 246 printk(KERN_ERR "%s: Unsupported or damaged EEPROM detected. " 247 "You may not be able to use all channels.\n", 248 wiphy_name(dev->wiphy)); 249 250 max_channel_num = max_t(unsigned int, priv->output_limit->entries, 251 priv->iq_autocal_len); 252 max_channel_num = max_t(unsigned int, max_channel_num, 253 priv->curve_data->entries); 254 255 list = kzalloc(sizeof(*list), GFP_KERNEL); 256 if (!list) { 257 ret = -ENOMEM; 258 goto free; 259 } 260 261 list->max_entries = max_channel_num; 262 list->channels = kzalloc(sizeof(struct p54_channel_entry) * 263 max_channel_num, GFP_KERNEL); 264 if (!list->channels) 265 goto free; 266 267 for (i = 0; i < max_channel_num; i++) { 268 if (i < priv->iq_autocal_len) { 269 freq = le16_to_cpu(priv->iq_autocal[i].freq); 270 p54_update_channel_param(list, freq, CHAN_HAS_CAL); 271 } 272 273 if (i < priv->output_limit->entries) { 274 freq = le16_to_cpup((__le16 *) (i * 275 priv->output_limit->entry_size + 276 priv->output_limit->offset + 277 priv->output_limit->data)); 278 279 p54_update_channel_param(list, freq, CHAN_HAS_LIMIT); 280 } 281 282 if (i < priv->curve_data->entries) { 283 freq = le16_to_cpup((__le16 *) (i * 284 priv->curve_data->entry_size + 285 priv->curve_data->offset + 286 priv->curve_data->data)); 287 288 p54_update_channel_param(list, freq, CHAN_HAS_CURVE); 289 } 290 } 291 292 /* sort the list by the channel index */ 293 sort(list->channels, list->entries, sizeof(struct p54_channel_entry), 294 p54_compare_channels, NULL); 295 296 for (i = 0, j = 0; i < IEEE80211_NUM_BANDS; i++) { 297 if (p54_generate_band(dev, list, i) == 0) 298 j++; 299 } 300 if (j == 0) { 301 /* no useable band available. */ 302 ret = -EINVAL; 303 } 304 305free: 306 if (list) { 307 kfree(list->channels); 308 kfree(list); 309 } 310 311 return ret; 312} 313 314static int p54_convert_rev0(struct ieee80211_hw *dev, 315 struct pda_pa_curve_data *curve_data) 316{ 317 struct p54_common *priv = dev->priv; 318 struct p54_pa_curve_data_sample *dst; 319 struct pda_pa_curve_data_sample_rev0 *src; 320 size_t cd_len = sizeof(*curve_data) + 321 (curve_data->points_per_channel*sizeof(*dst) + 2) * 322 curve_data->channels; 323 unsigned int i, j; 324 void *source, *target; 325 326 priv->curve_data = kmalloc(sizeof(*priv->curve_data) + cd_len, 327 GFP_KERNEL); 328 if (!priv->curve_data) 329 return -ENOMEM; 330 331 priv->curve_data->entries = curve_data->channels; 332 priv->curve_data->entry_size = sizeof(__le16) + 333 sizeof(*dst) * curve_data->points_per_channel; 334 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data); 335 priv->curve_data->len = cd_len; 336 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data)); 337 source = curve_data->data; 338 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data; 339 for (i = 0; i < curve_data->channels; i++) { 340 __le16 *freq = source; 341 source += sizeof(__le16); 342 *((__le16 *)target) = *freq; 343 target += sizeof(__le16); 344 for (j = 0; j < curve_data->points_per_channel; j++) { 345 dst = target; 346 src = source; 347 348 dst->rf_power = src->rf_power; 349 dst->pa_detector = src->pa_detector; 350 dst->data_64qam = src->pcv; 351 /* "invent" the points for the other modulations */ 352#define SUB(x, y) (u8)(((x) - (y)) > (x) ? 0 : (x) - (y)) 353 dst->data_16qam = SUB(src->pcv, 12); 354 dst->data_qpsk = SUB(dst->data_16qam, 12); 355 dst->data_bpsk = SUB(dst->data_qpsk, 12); 356 dst->data_barker = SUB(dst->data_bpsk, 14); 357#undef SUB 358 target += sizeof(*dst); 359 source += sizeof(*src); 360 } 361 } 362 363 return 0; 364} 365 366static int p54_convert_rev1(struct ieee80211_hw *dev, 367 struct pda_pa_curve_data *curve_data) 368{ 369 struct p54_common *priv = dev->priv; 370 struct p54_pa_curve_data_sample *dst; 371 struct pda_pa_curve_data_sample_rev1 *src; 372 size_t cd_len = sizeof(*curve_data) + 373 (curve_data->points_per_channel*sizeof(*dst) + 2) * 374 curve_data->channels; 375 unsigned int i, j; 376 void *source, *target; 377 378 priv->curve_data = kzalloc(cd_len + sizeof(*priv->curve_data), 379 GFP_KERNEL); 380 if (!priv->curve_data) 381 return -ENOMEM; 382 383 priv->curve_data->entries = curve_data->channels; 384 priv->curve_data->entry_size = sizeof(__le16) + 385 sizeof(*dst) * curve_data->points_per_channel; 386 priv->curve_data->offset = offsetof(struct pda_pa_curve_data, data); 387 priv->curve_data->len = cd_len; 388 memcpy(priv->curve_data->data, curve_data, sizeof(*curve_data)); 389 source = curve_data->data; 390 target = ((struct pda_pa_curve_data *) priv->curve_data->data)->data; 391 for (i = 0; i < curve_data->channels; i++) { 392 __le16 *freq = source; 393 source += sizeof(__le16); 394 *((__le16 *)target) = *freq; 395 target += sizeof(__le16); 396 for (j = 0; j < curve_data->points_per_channel; j++) { 397 memcpy(target, source, sizeof(*src)); 398 399 target += sizeof(*dst); 400 source += sizeof(*src); 401 } 402 source++; 403 } 404 405 return 0; 406} 407 408static const char *p54_rf_chips[] = { "INVALID-0", "Duette3", "Duette2", 409 "Frisbee", "Xbow", "Longbow", "INVALID-6", "INVALID-7" }; 410 411static void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len, 412 u16 type) 413{ 414 struct p54_common *priv = dev->priv; 415 int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0; 416 int entry_size = sizeof(struct pda_rssi_cal_entry) + offset; 417 int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2; 418 int i; 419 420 if (len != (entry_size * num_entries)) { 421 printk(KERN_ERR "%s: unknown rssi calibration data packing " 422 " type:(%x) len:%d.\n", 423 wiphy_name(dev->wiphy), type, len); 424 425 print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE, 426 data, len); 427 428 printk(KERN_ERR "%s: please report this issue.\n", 429 wiphy_name(dev->wiphy)); 430 return; 431 } 432 433 for (i = 0; i < num_entries; i++) { 434 struct pda_rssi_cal_entry *cal = data + 435 (offset + i * entry_size); 436 priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul); 437 priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add); 438 } 439} 440 441static void p54_parse_default_country(struct ieee80211_hw *dev, 442 void *data, int len) 443{ 444 struct pda_country *country; 445 446 if (len != sizeof(*country)) { 447 printk(KERN_ERR "%s: found possible invalid default country " 448 "eeprom entry. (entry size: %d)\n", 449 wiphy_name(dev->wiphy), len); 450 451 print_hex_dump_bytes("country:", DUMP_PREFIX_NONE, 452 data, len); 453 454 printk(KERN_ERR "%s: please report this issue.\n", 455 wiphy_name(dev->wiphy)); 456 return; 457 } 458 459 country = (struct pda_country *) data; 460 if (country->flags == PDR_COUNTRY_CERT_CODE_PSEUDO) 461 regulatory_hint(dev->wiphy, country->alpha2); 462 else { 463 /* TODO: 464 * write a shared/common function that converts 465 * "Regulatory domain codes" (802.11-2007 14.8.2.2) 466 * into ISO/IEC 3166-1 alpha2 for regulatory_hint. 467 */ 468 } 469} 470 471static int p54_convert_output_limits(struct ieee80211_hw *dev, 472 u8 *data, size_t len) 473{ 474 struct p54_common *priv = dev->priv; 475 476 if (len < 2) 477 return -EINVAL; 478 479 if (data[0] != 0) { 480 printk(KERN_ERR "%s: unknown output power db revision:%x\n", 481 wiphy_name(dev->wiphy), data[0]); 482 return -EINVAL; 483 } 484 485 if (2 + data[1] * sizeof(struct pda_channel_output_limit) > len) 486 return -EINVAL; 487 488 priv->output_limit = kmalloc(data[1] * 489 sizeof(struct pda_channel_output_limit) + 490 sizeof(*priv->output_limit), GFP_KERNEL); 491 492 if (!priv->output_limit) 493 return -ENOMEM; 494 495 priv->output_limit->offset = 0; 496 priv->output_limit->entries = data[1]; 497 priv->output_limit->entry_size = 498 sizeof(struct pda_channel_output_limit); 499 priv->output_limit->len = priv->output_limit->entry_size * 500 priv->output_limit->entries + 501 priv->output_limit->offset; 502 503 memcpy(priv->output_limit->data, &data[2], 504 data[1] * sizeof(struct pda_channel_output_limit)); 505 506 return 0; 507} 508 509static struct p54_cal_database *p54_convert_db(struct pda_custom_wrapper *src, 510 size_t total_len) 511{ 512 struct p54_cal_database *dst; 513 size_t payload_len, entries, entry_size, offset; 514 515 payload_len = le16_to_cpu(src->len); 516 entries = le16_to_cpu(src->entries); 517 entry_size = le16_to_cpu(src->entry_size); 518 offset = le16_to_cpu(src->offset); 519 if (((entries * entry_size + offset) != payload_len) || 520 (payload_len + sizeof(*src) != total_len)) 521 return NULL; 522 523 dst = kmalloc(sizeof(*dst) + payload_len, GFP_KERNEL); 524 if (!dst) 525 return NULL; 526 527 dst->entries = entries; 528 dst->entry_size = entry_size; 529 dst->offset = offset; 530 dst->len = payload_len; 531 532 memcpy(dst->data, src->data, payload_len); 533 return dst; 534} 535 536int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) 537{ 538 struct p54_common *priv = dev->priv; 539 struct eeprom_pda_wrap *wrap; 540 struct pda_entry *entry; 541 unsigned int data_len, entry_len; 542 void *tmp; 543 int err; 544 u8 *end = (u8 *)eeprom + len; 545 u16 synth = 0; 546 547 wrap = (struct eeprom_pda_wrap *) eeprom; 548 entry = (void *)wrap->data + le16_to_cpu(wrap->len); 549 550 /* verify that at least the entry length/code fits */ 551 while ((u8 *)entry <= end - sizeof(*entry)) { 552 entry_len = le16_to_cpu(entry->len); 553 data_len = ((entry_len - 1) << 1); 554 555 /* abort if entry exceeds whole structure */ 556 if ((u8 *)entry + sizeof(*entry) + data_len > end) 557 break; 558 559 switch (le16_to_cpu(entry->code)) { 560 case PDR_MAC_ADDRESS: 561 if (data_len != ETH_ALEN) 562 break; 563 SET_IEEE80211_PERM_ADDR(dev, entry->data); 564 break; 565 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS: 566 if (priv->output_limit) 567 break; 568 err = p54_convert_output_limits(dev, entry->data, 569 data_len); 570 if (err) 571 goto err; 572 break; 573 case PDR_PRISM_PA_CAL_CURVE_DATA: { 574 struct pda_pa_curve_data *curve_data = 575 (struct pda_pa_curve_data *)entry->data; 576 if (data_len < sizeof(*curve_data)) { 577 err = -EINVAL; 578 goto err; 579 } 580 581 switch (curve_data->cal_method_rev) { 582 case 0: 583 err = p54_convert_rev0(dev, curve_data); 584 break; 585 case 1: 586 err = p54_convert_rev1(dev, curve_data); 587 break; 588 default: 589 printk(KERN_ERR "%s: unknown curve data " 590 "revision %d\n", 591 wiphy_name(dev->wiphy), 592 curve_data->cal_method_rev); 593 err = -ENODEV; 594 break; 595 } 596 if (err) 597 goto err; 598 } 599 break; 600 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION: 601 priv->iq_autocal = kmalloc(data_len, GFP_KERNEL); 602 if (!priv->iq_autocal) { 603 err = -ENOMEM; 604 goto err; 605 } 606 607 memcpy(priv->iq_autocal, entry->data, data_len); 608 priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry); 609 break; 610 case PDR_DEFAULT_COUNTRY: 611 p54_parse_default_country(dev, entry->data, data_len); 612 break; 613 case PDR_INTERFACE_LIST: 614 tmp = entry->data; 615 while ((u8 *)tmp < entry->data + data_len) { 616 struct exp_if *exp_if = tmp; 617 if (exp_if->if_id == cpu_to_le16(IF_ID_ISL39000)) 618 synth = le16_to_cpu(exp_if->variant); 619 tmp += sizeof(*exp_if); 620 } 621 break; 622 case PDR_HARDWARE_PLATFORM_COMPONENT_ID: 623 if (data_len < 2) 624 break; 625 priv->version = *(u8 *)(entry->data + 1); 626 break; 627 case PDR_RSSI_LINEAR_APPROXIMATION: 628 case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND: 629 case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED: 630 p54_parse_rssical(dev, entry->data, data_len, 631 le16_to_cpu(entry->code)); 632 break; 633 case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM: { 634 __le16 *src = (void *) entry->data; 635 s16 *dst = (void *) &priv->rssical_db; 636 int i; 637 638 if (data_len != sizeof(priv->rssical_db)) { 639 err = -EINVAL; 640 goto err; 641 } 642 for (i = 0; i < sizeof(priv->rssical_db) / 643 sizeof(*src); i++) 644 *(dst++) = (s16) le16_to_cpu(*(src++)); 645 } 646 break; 647 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM: { 648 struct pda_custom_wrapper *pda = (void *) entry->data; 649 if (priv->output_limit || data_len < sizeof(*pda)) 650 break; 651 priv->output_limit = p54_convert_db(pda, data_len); 652 } 653 break; 654 case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM: { 655 struct pda_custom_wrapper *pda = (void *) entry->data; 656 if (priv->curve_data || data_len < sizeof(*pda)) 657 break; 658 priv->curve_data = p54_convert_db(pda, data_len); 659 } 660 break; 661 case PDR_END: 662 /* make it overrun */ 663 entry_len = len; 664 break; 665 default: 666 break; 667 } 668 669 entry = (void *)entry + (entry_len + 1)*2; 670 } 671 672 if (!synth || !priv->iq_autocal || !priv->output_limit || 673 !priv->curve_data) { 674 printk(KERN_ERR "%s: not all required entries found in eeprom!\n", 675 wiphy_name(dev->wiphy)); 676 err = -EINVAL; 677 goto err; 678 } 679 680 err = p54_generate_channel_lists(dev); 681 if (err) 682 goto err; 683 684 priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK; 685 if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW) 686 p54_init_xbow_synth(priv); 687 if (!(synth & PDR_SYNTH_24_GHZ_DISABLED)) 688 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = 689 priv->band_table[IEEE80211_BAND_2GHZ]; 690 if (!(synth & PDR_SYNTH_5_GHZ_DISABLED)) 691 dev->wiphy->bands[IEEE80211_BAND_5GHZ] = 692 priv->band_table[IEEE80211_BAND_5GHZ]; 693 if ((synth & PDR_SYNTH_RX_DIV_MASK) == PDR_SYNTH_RX_DIV_SUPPORTED) 694 priv->rx_diversity_mask = 3; 695 if ((synth & PDR_SYNTH_TX_DIV_MASK) == PDR_SYNTH_TX_DIV_SUPPORTED) 696 priv->tx_diversity_mask = 3; 697 698 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { 699 u8 perm_addr[ETH_ALEN]; 700 701 printk(KERN_WARNING "%s: Invalid hwaddr! Using randomly generated MAC addr\n", 702 wiphy_name(dev->wiphy)); 703 random_ether_addr(perm_addr); 704 SET_IEEE80211_PERM_ADDR(dev, perm_addr); 705 } 706 707 printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n", 708 wiphy_name(dev->wiphy), dev->wiphy->perm_addr, priv->version, 709 p54_rf_chips[priv->rxhw]); 710 711 return 0; 712 713err: 714 kfree(priv->iq_autocal); 715 kfree(priv->output_limit); 716 kfree(priv->curve_data); 717 priv->iq_autocal = NULL; 718 priv->output_limit = NULL; 719 priv->curve_data = NULL; 720 721 printk(KERN_ERR "%s: eeprom parse failed!\n", 722 wiphy_name(dev->wiphy)); 723 return err; 724} 725EXPORT_SYMBOL_GPL(p54_parse_eeprom); 726 727int p54_read_eeprom(struct ieee80211_hw *dev) 728{ 729 struct p54_common *priv = dev->priv; 730 size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize; 731 int ret = -ENOMEM; 732 void *eeprom; 733 734 maxblocksize = EEPROM_READBACK_LEN; 735 if (priv->fw_var >= 0x509) 736 maxblocksize -= 0xc; 737 else 738 maxblocksize -= 0x4; 739 740 eeprom = kzalloc(eeprom_size, GFP_KERNEL); 741 if (unlikely(!eeprom)) 742 goto free; 743 744 while (eeprom_size) { 745 blocksize = min(eeprom_size, maxblocksize); 746 ret = p54_download_eeprom(priv, (void *) (eeprom + offset), 747 offset, blocksize); 748 if (unlikely(ret)) 749 goto free; 750 751 offset += blocksize; 752 eeprom_size -= blocksize; 753 } 754 755 ret = p54_parse_eeprom(dev, eeprom, offset); 756free: 757 kfree(eeprom); 758 return ret; 759} 760EXPORT_SYMBOL_GPL(p54_read_eeprom); 761