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 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 wiphy_err(dev->wiphy, 152 "%s%s%s is/are missing for channel:%d [%d MHz].\n", 153 (list->channels[i].data & CHAN_HAS_CAL ? "" : 154 " [iqauto calibration data]"), 155 (list->channels[i].data & CHAN_HAS_LIMIT ? "" : 156 " [output power limits]"), 157 (list->channels[i].data & CHAN_HAS_CURVE ? "" : 158 " [curve data]"), 159 list->channels[i].index, list->channels[i].freq); 160 continue; 161 } 162 163 tmp->channels[j].band = list->channels[i].band; 164 tmp->channels[j].center_freq = list->channels[i].freq; 165 j++; 166 } 167 168 if (j == 0) { 169 wiphy_err(dev->wiphy, "Disabling totally damaged %d GHz band\n", 170 (band == IEEE80211_BAND_2GHZ) ? 2 : 5); 171 172 ret = -ENODATA; 173 goto err_out; 174 } 175 176 tmp->n_channels = j; 177 old = priv->band_table[band]; 178 priv->band_table[band] = tmp; 179 if (old) { 180 kfree(old->channels); 181 kfree(old); 182 } 183 184 return 0; 185 186err_out: 187 if (tmp) { 188 kfree(tmp->channels); 189 kfree(tmp); 190 } 191 192 return ret; 193} 194 195static void p54_update_channel_param(struct p54_channel_list *list, 196 u16 freq, u16 data) 197{ 198 int band, i; 199 200 /* 201 * usually all lists in the eeprom are mostly sorted. 202 * so it's very likely that the entry we are looking for 203 * is right at the end of the list 204 */ 205 for (i = list->entries; i >= 0; i--) { 206 if (freq == list->channels[i].freq) { 207 list->channels[i].data |= data; 208 break; 209 } 210 } 211 212 if ((i < 0) && (list->entries < list->max_entries)) { 213 /* entry does not exist yet. Initialize a new one. */ 214 band = p54_get_band_from_freq(freq); 215 216 /* 217 * filter out frequencies which don't belong into 218 * any supported band. 219 */ 220 if (band < 0) 221 return ; 222 223 i = list->entries++; 224 list->band_channel_num[band]++; 225 226 list->channels[i].freq = freq; 227 list->channels[i].data = data; 228 list->channels[i].band = band; 229 list->channels[i].index = ieee80211_frequency_to_channel(freq); 230 /* TODO: parse output_limit and fill max_power */ 231 } 232} 233 234static int p54_generate_channel_lists(struct ieee80211_hw *dev) 235{ 236 struct p54_common *priv = dev->priv; 237 struct p54_channel_list *list; 238 unsigned int i, j, max_channel_num; 239 int ret = 0; 240 u16 freq; 241 242 if ((priv->iq_autocal_len != priv->curve_data->entries) || 243 (priv->iq_autocal_len != priv->output_limit->entries)) 244 wiphy_err(dev->wiphy, 245 "Unsupported or damaged EEPROM detected. " 246 "You may not be able to use all channels.\n"); 247 248 max_channel_num = max_t(unsigned int, priv->output_limit->entries, 249 priv->iq_autocal_len); 250 max_channel_num = max_t(unsigned int, max_channel_num, 251 priv->curve_data->entries); 252 253 list = kzalloc(sizeof(*list), GFP_KERNEL); 254 if (!list) { 255 ret = -ENOMEM; 256 goto free; 257 } 258 259 list->max_entries = max_channel_num; 260 list->channels = kzalloc(sizeof(struct p54_channel_entry) * 261 max_channel_num, GFP_KERNEL); 262 if (!list->channels) { 263 ret = -ENOMEM; 264 goto free; 265 } 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 wiphy_err(dev->wiphy, 422 "unknown rssi calibration data packing type:(%x) len:%d.\n", 423 type, len); 424 425 print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE, 426 data, len); 427 428 wiphy_err(dev->wiphy, "please report this issue.\n"); 429 return; 430 } 431 432 for (i = 0; i < num_entries; i++) { 433 struct pda_rssi_cal_entry *cal = data + 434 (offset + i * entry_size); 435 priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul); 436 priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add); 437 } 438} 439 440static void p54_parse_default_country(struct ieee80211_hw *dev, 441 void *data, int len) 442{ 443 struct pda_country *country; 444 445 if (len != sizeof(*country)) { 446 wiphy_err(dev->wiphy, 447 "found possible invalid default country eeprom entry. (entry size: %d)\n", 448 len); 449 450 print_hex_dump_bytes("country:", DUMP_PREFIX_NONE, 451 data, len); 452 453 wiphy_err(dev->wiphy, "please report this issue.\n"); 454 return; 455 } 456 457 country = (struct pda_country *) data; 458 if (country->flags == PDR_COUNTRY_CERT_CODE_PSEUDO) 459 regulatory_hint(dev->wiphy, country->alpha2); 460 else { 461 /* TODO: 462 * write a shared/common function that converts 463 * "Regulatory domain codes" (802.11-2007 14.8.2.2) 464 * into ISO/IEC 3166-1 alpha2 for regulatory_hint. 465 */ 466 } 467} 468 469static int p54_convert_output_limits(struct ieee80211_hw *dev, 470 u8 *data, size_t len) 471{ 472 struct p54_common *priv = dev->priv; 473 474 if (len < 2) 475 return -EINVAL; 476 477 if (data[0] != 0) { 478 wiphy_err(dev->wiphy, "unknown output power db revision:%x\n", 479 data[0]); 480 return -EINVAL; 481 } 482 483 if (2 + data[1] * sizeof(struct pda_channel_output_limit) > len) 484 return -EINVAL; 485 486 priv->output_limit = kmalloc(data[1] * 487 sizeof(struct pda_channel_output_limit) + 488 sizeof(*priv->output_limit), GFP_KERNEL); 489 490 if (!priv->output_limit) 491 return -ENOMEM; 492 493 priv->output_limit->offset = 0; 494 priv->output_limit->entries = data[1]; 495 priv->output_limit->entry_size = 496 sizeof(struct pda_channel_output_limit); 497 priv->output_limit->len = priv->output_limit->entry_size * 498 priv->output_limit->entries + 499 priv->output_limit->offset; 500 501 memcpy(priv->output_limit->data, &data[2], 502 data[1] * sizeof(struct pda_channel_output_limit)); 503 504 return 0; 505} 506 507static struct p54_cal_database *p54_convert_db(struct pda_custom_wrapper *src, 508 size_t total_len) 509{ 510 struct p54_cal_database *dst; 511 size_t payload_len, entries, entry_size, offset; 512 513 payload_len = le16_to_cpu(src->len); 514 entries = le16_to_cpu(src->entries); 515 entry_size = le16_to_cpu(src->entry_size); 516 offset = le16_to_cpu(src->offset); 517 if (((entries * entry_size + offset) != payload_len) || 518 (payload_len + sizeof(*src) != total_len)) 519 return NULL; 520 521 dst = kmalloc(sizeof(*dst) + payload_len, GFP_KERNEL); 522 if (!dst) 523 return NULL; 524 525 dst->entries = entries; 526 dst->entry_size = entry_size; 527 dst->offset = offset; 528 dst->len = payload_len; 529 530 memcpy(dst->data, src->data, payload_len); 531 return dst; 532} 533 534int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len) 535{ 536 struct p54_common *priv = dev->priv; 537 struct eeprom_pda_wrap *wrap; 538 struct pda_entry *entry; 539 unsigned int data_len, entry_len; 540 void *tmp; 541 int err; 542 u8 *end = (u8 *)eeprom + len; 543 u16 synth = 0; 544 545 wrap = (struct eeprom_pda_wrap *) eeprom; 546 entry = (void *)wrap->data + le16_to_cpu(wrap->len); 547 548 /* verify that at least the entry length/code fits */ 549 while ((u8 *)entry <= end - sizeof(*entry)) { 550 entry_len = le16_to_cpu(entry->len); 551 data_len = ((entry_len - 1) << 1); 552 553 /* abort if entry exceeds whole structure */ 554 if ((u8 *)entry + sizeof(*entry) + data_len > end) 555 break; 556 557 switch (le16_to_cpu(entry->code)) { 558 case PDR_MAC_ADDRESS: 559 if (data_len != ETH_ALEN) 560 break; 561 SET_IEEE80211_PERM_ADDR(dev, entry->data); 562 break; 563 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS: 564 if (priv->output_limit) 565 break; 566 err = p54_convert_output_limits(dev, entry->data, 567 data_len); 568 if (err) 569 goto err; 570 break; 571 case PDR_PRISM_PA_CAL_CURVE_DATA: { 572 struct pda_pa_curve_data *curve_data = 573 (struct pda_pa_curve_data *)entry->data; 574 if (data_len < sizeof(*curve_data)) { 575 err = -EINVAL; 576 goto err; 577 } 578 579 switch (curve_data->cal_method_rev) { 580 case 0: 581 err = p54_convert_rev0(dev, curve_data); 582 break; 583 case 1: 584 err = p54_convert_rev1(dev, curve_data); 585 break; 586 default: 587 wiphy_err(dev->wiphy, 588 "unknown curve data revision %d\n", 589 curve_data->cal_method_rev); 590 err = -ENODEV; 591 break; 592 } 593 if (err) 594 goto err; 595 } 596 break; 597 case PDR_PRISM_ZIF_TX_IQ_CALIBRATION: 598 priv->iq_autocal = kmemdup(entry->data, data_len, 599 GFP_KERNEL); 600 if (!priv->iq_autocal) { 601 err = -ENOMEM; 602 goto err; 603 } 604 605 priv->iq_autocal_len = data_len / sizeof(struct pda_iq_autocal_entry); 606 break; 607 case PDR_DEFAULT_COUNTRY: 608 p54_parse_default_country(dev, entry->data, data_len); 609 break; 610 case PDR_INTERFACE_LIST: 611 tmp = entry->data; 612 while ((u8 *)tmp < entry->data + data_len) { 613 struct exp_if *exp_if = tmp; 614 if (exp_if->if_id == cpu_to_le16(IF_ID_ISL39000)) 615 synth = le16_to_cpu(exp_if->variant); 616 tmp += sizeof(*exp_if); 617 } 618 break; 619 case PDR_HARDWARE_PLATFORM_COMPONENT_ID: 620 if (data_len < 2) 621 break; 622 priv->version = *(u8 *)(entry->data + 1); 623 break; 624 case PDR_RSSI_LINEAR_APPROXIMATION: 625 case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND: 626 case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED: 627 p54_parse_rssical(dev, entry->data, data_len, 628 le16_to_cpu(entry->code)); 629 break; 630 case PDR_RSSI_LINEAR_APPROXIMATION_CUSTOM: { 631 __le16 *src = (void *) entry->data; 632 s16 *dst = (void *) &priv->rssical_db; 633 int i; 634 635 if (data_len != sizeof(priv->rssical_db)) { 636 err = -EINVAL; 637 goto err; 638 } 639 for (i = 0; i < sizeof(priv->rssical_db) / 640 sizeof(*src); i++) 641 *(dst++) = (s16) le16_to_cpu(*(src++)); 642 } 643 break; 644 case PDR_PRISM_PA_CAL_OUTPUT_POWER_LIMITS_CUSTOM: { 645 struct pda_custom_wrapper *pda = (void *) entry->data; 646 if (priv->output_limit || data_len < sizeof(*pda)) 647 break; 648 priv->output_limit = p54_convert_db(pda, data_len); 649 } 650 break; 651 case PDR_PRISM_PA_CAL_CURVE_DATA_CUSTOM: { 652 struct pda_custom_wrapper *pda = (void *) entry->data; 653 if (priv->curve_data || data_len < sizeof(*pda)) 654 break; 655 priv->curve_data = p54_convert_db(pda, data_len); 656 } 657 break; 658 case PDR_END: 659 /* make it overrun */ 660 entry_len = len; 661 break; 662 default: 663 break; 664 } 665 666 entry = (void *)entry + (entry_len + 1)*2; 667 } 668 669 if (!synth || !priv->iq_autocal || !priv->output_limit || 670 !priv->curve_data) { 671 wiphy_err(dev->wiphy, 672 "not all required entries found in eeprom!\n"); 673 err = -EINVAL; 674 goto err; 675 } 676 677 err = p54_generate_channel_lists(dev); 678 if (err) 679 goto err; 680 681 priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK; 682 if (priv->rxhw == PDR_SYNTH_FRONTEND_XBOW) 683 p54_init_xbow_synth(priv); 684 if (!(synth & PDR_SYNTH_24_GHZ_DISABLED)) 685 dev->wiphy->bands[IEEE80211_BAND_2GHZ] = 686 priv->band_table[IEEE80211_BAND_2GHZ]; 687 if (!(synth & PDR_SYNTH_5_GHZ_DISABLED)) 688 dev->wiphy->bands[IEEE80211_BAND_5GHZ] = 689 priv->band_table[IEEE80211_BAND_5GHZ]; 690 if ((synth & PDR_SYNTH_RX_DIV_MASK) == PDR_SYNTH_RX_DIV_SUPPORTED) 691 priv->rx_diversity_mask = 3; 692 if ((synth & PDR_SYNTH_TX_DIV_MASK) == PDR_SYNTH_TX_DIV_SUPPORTED) 693 priv->tx_diversity_mask = 3; 694 695 if (!is_valid_ether_addr(dev->wiphy->perm_addr)) { 696 u8 perm_addr[ETH_ALEN]; 697 698 wiphy_warn(dev->wiphy, 699 "Invalid hwaddr! Using randomly generated MAC addr\n"); 700 random_ether_addr(perm_addr); 701 SET_IEEE80211_PERM_ADDR(dev, perm_addr); 702 } 703 704 wiphy_info(dev->wiphy, "hwaddr %pM, MAC:isl38%02x RF:%s\n", 705 dev->wiphy->perm_addr, priv->version, 706 p54_rf_chips[priv->rxhw]); 707 708 return 0; 709 710err: 711 kfree(priv->iq_autocal); 712 kfree(priv->output_limit); 713 kfree(priv->curve_data); 714 priv->iq_autocal = NULL; 715 priv->output_limit = NULL; 716 priv->curve_data = NULL; 717 718 wiphy_err(dev->wiphy, "eeprom parse failed!\n"); 719 return err; 720} 721EXPORT_SYMBOL_GPL(p54_parse_eeprom); 722 723int p54_read_eeprom(struct ieee80211_hw *dev) 724{ 725 struct p54_common *priv = dev->priv; 726 size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize; 727 int ret = -ENOMEM; 728 void *eeprom; 729 730 maxblocksize = EEPROM_READBACK_LEN; 731 if (priv->fw_var >= 0x509) 732 maxblocksize -= 0xc; 733 else 734 maxblocksize -= 0x4; 735 736 eeprom = kzalloc(eeprom_size, GFP_KERNEL); 737 if (unlikely(!eeprom)) 738 goto free; 739 740 while (eeprom_size) { 741 blocksize = min(eeprom_size, maxblocksize); 742 ret = p54_download_eeprom(priv, (void *) (eeprom + offset), 743 offset, blocksize); 744 if (unlikely(ret)) 745 goto free; 746 747 offset += blocksize; 748 eeprom_size -= blocksize; 749 } 750 751 ret = p54_parse_eeprom(dev, eeprom, offset); 752free: 753 kfree(eeprom); 754 return ret; 755} 756EXPORT_SYMBOL_GPL(p54_read_eeprom); 757