1/****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23 * USA 24 * 25 * The full GNU General Public License is included in this distribution 26 * in the file called COPYING. 27 * 28 * Contact Information: 29 * Intel Linux Wireless <ilw@linux.intel.com> 30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31 * 32 * BSD LICENSE 33 * 34 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. 35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 42 * * Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * * Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * * Neither the name Intel Corporation nor the names of its 49 * contributors may be used to endorse or promote products derived 50 * from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 * 64 *****************************************************************************/ 65#include <linux/completion.h> 66#include <linux/dma-mapping.h> 67#include <linux/firmware.h> 68#include <linux/module.h> 69#include <linux/vmalloc.h> 70 71#include "iwl-drv.h" 72#include "iwl-csr.h" 73#include "iwl-debug.h" 74#include "iwl-trans.h" 75#include "iwl-op-mode.h" 76#include "iwl-agn-hw.h" 77#include "iwl-fw.h" 78#include "iwl-config.h" 79#include "iwl-modparams.h" 80 81/****************************************************************************** 82 * 83 * module boiler plate 84 * 85 ******************************************************************************/ 86 87#define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" 88MODULE_DESCRIPTION(DRV_DESCRIPTION); 89MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); 90MODULE_LICENSE("GPL"); 91 92#ifdef CONFIG_IWLWIFI_DEBUGFS 93static struct dentry *iwl_dbgfs_root; 94#endif 95 96/** 97 * struct iwl_drv - drv common data 98 * @list: list of drv structures using this opmode 99 * @fw: the iwl_fw structure 100 * @op_mode: the running op_mode 101 * @trans: transport layer 102 * @dev: for debug prints only 103 * @cfg: configuration struct 104 * @fw_index: firmware revision to try loading 105 * @firmware_name: composite filename of ucode file to load 106 * @request_firmware_complete: the firmware has been obtained from user space 107 */ 108struct iwl_drv { 109 struct list_head list; 110 struct iwl_fw fw; 111 112 struct iwl_op_mode *op_mode; 113 struct iwl_trans *trans; 114 struct device *dev; 115 const struct iwl_cfg *cfg; 116 117 int fw_index; /* firmware we're trying to load */ 118 char firmware_name[32]; /* name of firmware file to load */ 119 120 struct completion request_firmware_complete; 121 122#ifdef CONFIG_IWLWIFI_DEBUGFS 123 struct dentry *dbgfs_drv; 124 struct dentry *dbgfs_trans; 125 struct dentry *dbgfs_op_mode; 126#endif 127}; 128 129enum { 130 DVM_OP_MODE = 0, 131 MVM_OP_MODE = 1, 132}; 133 134/* Protects the table contents, i.e. the ops pointer & drv list */ 135static struct mutex iwlwifi_opmode_table_mtx; 136static struct iwlwifi_opmode_table { 137 const char *name; /* name: iwldvm, iwlmvm, etc */ 138 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ 139 struct list_head drv; /* list of devices using this op_mode */ 140} iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ 141 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL }, 142 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL }, 143}; 144 145#define IWL_DEFAULT_SCAN_CHANNELS 40 146 147/* 148 * struct fw_sec: Just for the image parsing process. 149 * For the fw storage we are using struct fw_desc. 150 */ 151struct fw_sec { 152 const void *data; /* the sec data */ 153 size_t size; /* section size */ 154 u32 offset; /* offset of writing in the device */ 155}; 156 157static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) 158{ 159 vfree(desc->data); 160 desc->data = NULL; 161 desc->len = 0; 162} 163 164static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) 165{ 166 int i; 167 for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) 168 iwl_free_fw_desc(drv, &img->sec[i]); 169} 170 171static void iwl_dealloc_ucode(struct iwl_drv *drv) 172{ 173 int i; 174 175 kfree(drv->fw.dbg_dest_tlv); 176 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) 177 kfree(drv->fw.dbg_conf_tlv[i]); 178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) 179 kfree(drv->fw.dbg_trigger_tlv[i]); 180 181 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 182 iwl_free_fw_img(drv, drv->fw.img + i); 183} 184 185static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, 186 struct fw_sec *sec) 187{ 188 void *data; 189 190 desc->data = NULL; 191 192 if (!sec || !sec->size) 193 return -EINVAL; 194 195 data = vmalloc(sec->size); 196 if (!data) 197 return -ENOMEM; 198 199 desc->len = sec->size; 200 desc->offset = sec->offset; 201 memcpy(data, sec->data, desc->len); 202 desc->data = data; 203 204 return 0; 205} 206 207static void iwl_req_fw_callback(const struct firmware *ucode_raw, 208 void *context); 209 210#define UCODE_EXPERIMENTAL_INDEX 100 211#define UCODE_EXPERIMENTAL_TAG "exp" 212 213static int iwl_request_firmware(struct iwl_drv *drv, bool first) 214{ 215 const char *name_pre = drv->cfg->fw_name_pre; 216 char tag[8]; 217 218 if (first) { 219#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE 220 drv->fw_index = UCODE_EXPERIMENTAL_INDEX; 221 strcpy(tag, UCODE_EXPERIMENTAL_TAG); 222 } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) { 223#endif 224 drv->fw_index = drv->cfg->ucode_api_max; 225 sprintf(tag, "%d", drv->fw_index); 226 } else { 227 drv->fw_index--; 228 sprintf(tag, "%d", drv->fw_index); 229 } 230 231 if (drv->fw_index < drv->cfg->ucode_api_min) { 232 IWL_ERR(drv, "no suitable firmware found!\n"); 233 return -ENOENT; 234 } 235 236 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", 237 name_pre, tag); 238 239 /* 240 * Starting 8000B - FW name format has changed. This overwrites the 241 * previous name and uses the new format. 242 */ 243 if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) { 244 char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev); 245 246 snprintf(drv->firmware_name, sizeof(drv->firmware_name), 247 "%s%c-%s.ucode", name_pre, rev_step, tag); 248 } 249 250 IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n", 251 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) 252 ? "EXPERIMENTAL " : "", 253 drv->firmware_name); 254 255 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 256 drv->trans->dev, 257 GFP_KERNEL, drv, iwl_req_fw_callback); 258} 259 260struct fw_img_parsing { 261 struct fw_sec sec[IWL_UCODE_SECTION_MAX]; 262 int sec_counter; 263}; 264 265/* 266 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 267 */ 268struct fw_sec_parsing { 269 __le32 offset; 270 const u8 data[]; 271} __packed; 272 273/** 274 * struct iwl_tlv_calib_data - parse the default calib data from TLV 275 * 276 * @ucode_type: the uCode to which the following default calib relates. 277 * @calib: default calibrations. 278 */ 279struct iwl_tlv_calib_data { 280 __le32 ucode_type; 281 struct iwl_tlv_calib_ctrl calib; 282} __packed; 283 284struct iwl_firmware_pieces { 285 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 286 287 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 288 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 289 290 /* FW debug data parsed for driver usage */ 291 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 292 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 293 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 294 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 295 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 296}; 297 298/* 299 * These functions are just to extract uCode section data from the pieces 300 * structure. 301 */ 302static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 303 enum iwl_ucode_type type, 304 int sec) 305{ 306 return &pieces->img[type].sec[sec]; 307} 308 309static void set_sec_data(struct iwl_firmware_pieces *pieces, 310 enum iwl_ucode_type type, 311 int sec, 312 const void *data) 313{ 314 pieces->img[type].sec[sec].data = data; 315} 316 317static void set_sec_size(struct iwl_firmware_pieces *pieces, 318 enum iwl_ucode_type type, 319 int sec, 320 size_t size) 321{ 322 pieces->img[type].sec[sec].size = size; 323} 324 325static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 326 enum iwl_ucode_type type, 327 int sec) 328{ 329 return pieces->img[type].sec[sec].size; 330} 331 332static void set_sec_offset(struct iwl_firmware_pieces *pieces, 333 enum iwl_ucode_type type, 334 int sec, 335 u32 offset) 336{ 337 pieces->img[type].sec[sec].offset = offset; 338} 339 340static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) 341{ 342 int i, j; 343 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; 344 struct iwl_fw_cipher_scheme *fwcs; 345 struct ieee80211_cipher_scheme *cs; 346 u32 cipher; 347 348 if (len < sizeof(*l) || 349 len < sizeof(l->size) + l->size * sizeof(l->cs[0])) 350 return -EINVAL; 351 352 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { 353 fwcs = &l->cs[j]; 354 cipher = le32_to_cpu(fwcs->cipher); 355 356 /* we skip schemes with zero cipher suite selector */ 357 if (!cipher) 358 continue; 359 360 cs = &fw->cs[j++]; 361 cs->cipher = cipher; 362 cs->iftype = BIT(NL80211_IFTYPE_STATION); 363 cs->hdr_len = fwcs->hdr_len; 364 cs->pn_len = fwcs->pn_len; 365 cs->pn_off = fwcs->pn_off; 366 cs->key_idx_off = fwcs->key_idx_off; 367 cs->key_idx_mask = fwcs->key_idx_mask; 368 cs->key_idx_shift = fwcs->key_idx_shift; 369 cs->mic_len = fwcs->mic_len; 370 } 371 372 return 0; 373} 374 375static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data, 376 const u32 len) 377{ 378 struct iwl_fw_gscan_capabilities *fw_capa = (void *)data; 379 struct iwl_gscan_capabilities *capa = &fw->gscan_capa; 380 381 if (len < sizeof(*fw_capa)) 382 return -EINVAL; 383 384 capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size); 385 capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets); 386 capa->max_ap_cache_per_scan = 387 le32_to_cpu(fw_capa->max_ap_cache_per_scan); 388 capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size); 389 capa->max_scan_reporting_threshold = 390 le32_to_cpu(fw_capa->max_scan_reporting_threshold); 391 capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps); 392 capa->max_significant_change_aps = 393 le32_to_cpu(fw_capa->max_significant_change_aps); 394 capa->max_bssid_history_entries = 395 le32_to_cpu(fw_capa->max_bssid_history_entries); 396 return 0; 397} 398 399/* 400 * Gets uCode section from tlv. 401 */ 402static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 403 const void *data, enum iwl_ucode_type type, 404 int size) 405{ 406 struct fw_img_parsing *img; 407 struct fw_sec *sec; 408 struct fw_sec_parsing *sec_parse; 409 410 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 411 return -1; 412 413 sec_parse = (struct fw_sec_parsing *)data; 414 415 img = &pieces->img[type]; 416 sec = &img->sec[img->sec_counter]; 417 418 sec->offset = le32_to_cpu(sec_parse->offset); 419 sec->data = sec_parse->data; 420 sec->size = size - sizeof(sec_parse->offset); 421 422 ++img->sec_counter; 423 424 return 0; 425} 426 427static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 428{ 429 struct iwl_tlv_calib_data *def_calib = 430 (struct iwl_tlv_calib_data *)data; 431 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 432 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 433 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 434 ucode_type); 435 return -EINVAL; 436 } 437 drv->fw.default_calib[ucode_type].flow_trigger = 438 def_calib->calib.flow_trigger; 439 drv->fw.default_calib[ucode_type].event_trigger = 440 def_calib->calib.event_trigger; 441 442 return 0; 443} 444 445static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 446 struct iwl_ucode_capabilities *capa) 447{ 448 const struct iwl_ucode_api *ucode_api = (void *)data; 449 u32 api_index = le32_to_cpu(ucode_api->api_index); 450 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 451 int i; 452 453 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 454 IWL_ERR(drv, "api_index larger than supported by driver\n"); 455 /* don't return an error so we can load FW that has more bits */ 456 return 0; 457 } 458 459 for (i = 0; i < 32; i++) { 460 if (api_flags & BIT(i)) 461 __set_bit(i + 32 * api_index, capa->_api); 462 } 463 464 return 0; 465} 466 467static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 468 struct iwl_ucode_capabilities *capa) 469{ 470 const struct iwl_ucode_capa *ucode_capa = (void *)data; 471 u32 api_index = le32_to_cpu(ucode_capa->api_index); 472 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 473 int i; 474 475 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 476 IWL_ERR(drv, "api_index larger than supported by driver\n"); 477 /* don't return an error so we can load FW that has more bits */ 478 return 0; 479 } 480 481 for (i = 0; i < 32; i++) { 482 if (api_flags & BIT(i)) 483 __set_bit(i + 32 * api_index, capa->_capa); 484 } 485 486 return 0; 487} 488 489static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 490 const struct firmware *ucode_raw, 491 struct iwl_firmware_pieces *pieces) 492{ 493 struct iwl_ucode_header *ucode = (void *)ucode_raw->data; 494 u32 api_ver, hdr_size, build; 495 char buildstr[25]; 496 const u8 *src; 497 498 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 499 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 500 501 switch (api_ver) { 502 default: 503 hdr_size = 28; 504 if (ucode_raw->size < hdr_size) { 505 IWL_ERR(drv, "File size too small!\n"); 506 return -EINVAL; 507 } 508 build = le32_to_cpu(ucode->u.v2.build); 509 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 510 le32_to_cpu(ucode->u.v2.inst_size)); 511 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 512 le32_to_cpu(ucode->u.v2.data_size)); 513 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 514 le32_to_cpu(ucode->u.v2.init_size)); 515 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 516 le32_to_cpu(ucode->u.v2.init_data_size)); 517 src = ucode->u.v2.data; 518 break; 519 case 0: 520 case 1: 521 case 2: 522 hdr_size = 24; 523 if (ucode_raw->size < hdr_size) { 524 IWL_ERR(drv, "File size too small!\n"); 525 return -EINVAL; 526 } 527 build = 0; 528 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 529 le32_to_cpu(ucode->u.v1.inst_size)); 530 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 531 le32_to_cpu(ucode->u.v1.data_size)); 532 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 533 le32_to_cpu(ucode->u.v1.init_size)); 534 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 535 le32_to_cpu(ucode->u.v1.init_data_size)); 536 src = ucode->u.v1.data; 537 break; 538 } 539 540 if (build) 541 sprintf(buildstr, " build %u%s", build, 542 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) 543 ? " (EXP)" : ""); 544 else 545 buildstr[0] = '\0'; 546 547 snprintf(drv->fw.fw_version, 548 sizeof(drv->fw.fw_version), 549 "%u.%u.%u.%u%s", 550 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 551 IWL_UCODE_MINOR(drv->fw.ucode_ver), 552 IWL_UCODE_API(drv->fw.ucode_ver), 553 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 554 buildstr); 555 556 /* Verify size of file vs. image size info in file's header */ 557 558 if (ucode_raw->size != hdr_size + 559 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 560 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 561 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 562 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 563 564 IWL_ERR(drv, 565 "uCode file size %d does not match expected size\n", 566 (int)ucode_raw->size); 567 return -EINVAL; 568 } 569 570 571 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 572 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 573 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 574 IWLAGN_RTC_INST_LOWER_BOUND); 575 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 576 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 577 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 578 IWLAGN_RTC_DATA_LOWER_BOUND); 579 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 580 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 581 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 582 IWLAGN_RTC_INST_LOWER_BOUND); 583 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 584 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 585 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 586 IWLAGN_RTC_DATA_LOWER_BOUND); 587 return 0; 588} 589 590static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 591 const struct firmware *ucode_raw, 592 struct iwl_firmware_pieces *pieces, 593 struct iwl_ucode_capabilities *capa) 594{ 595 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; 596 struct iwl_ucode_tlv *tlv; 597 size_t len = ucode_raw->size; 598 const u8 *data; 599 u32 tlv_len; 600 u32 usniffer_img; 601 enum iwl_ucode_tlv_type tlv_type; 602 const u8 *tlv_data; 603 char buildstr[25]; 604 u32 build, paging_mem_size; 605 int num_of_cpus; 606 bool usniffer_images = false; 607 bool usniffer_req = false; 608 bool gscan_capa = false; 609 610 if (len < sizeof(*ucode)) { 611 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 612 return -EINVAL; 613 } 614 615 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 616 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 617 le32_to_cpu(ucode->magic)); 618 return -EINVAL; 619 } 620 621 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 622 memcpy(drv->fw.human_readable, ucode->human_readable, 623 sizeof(drv->fw.human_readable)); 624 build = le32_to_cpu(ucode->build); 625 626 if (build) 627 sprintf(buildstr, " build %u%s", build, 628 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) 629 ? " (EXP)" : ""); 630 else 631 buildstr[0] = '\0'; 632 633 snprintf(drv->fw.fw_version, 634 sizeof(drv->fw.fw_version), 635 "%u.%u.%u.%u%s", 636 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 637 IWL_UCODE_MINOR(drv->fw.ucode_ver), 638 IWL_UCODE_API(drv->fw.ucode_ver), 639 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 640 buildstr); 641 642 data = ucode->data; 643 644 len -= sizeof(*ucode); 645 646 while (len >= sizeof(*tlv)) { 647 len -= sizeof(*tlv); 648 tlv = (void *)data; 649 650 tlv_len = le32_to_cpu(tlv->length); 651 tlv_type = le32_to_cpu(tlv->type); 652 tlv_data = tlv->data; 653 654 if (len < tlv_len) { 655 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 656 len, tlv_len); 657 return -EINVAL; 658 } 659 len -= ALIGN(tlv_len, 4); 660 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 661 662 switch (tlv_type) { 663 case IWL_UCODE_TLV_INST: 664 set_sec_data(pieces, IWL_UCODE_REGULAR, 665 IWL_UCODE_SECTION_INST, tlv_data); 666 set_sec_size(pieces, IWL_UCODE_REGULAR, 667 IWL_UCODE_SECTION_INST, tlv_len); 668 set_sec_offset(pieces, IWL_UCODE_REGULAR, 669 IWL_UCODE_SECTION_INST, 670 IWLAGN_RTC_INST_LOWER_BOUND); 671 break; 672 case IWL_UCODE_TLV_DATA: 673 set_sec_data(pieces, IWL_UCODE_REGULAR, 674 IWL_UCODE_SECTION_DATA, tlv_data); 675 set_sec_size(pieces, IWL_UCODE_REGULAR, 676 IWL_UCODE_SECTION_DATA, tlv_len); 677 set_sec_offset(pieces, IWL_UCODE_REGULAR, 678 IWL_UCODE_SECTION_DATA, 679 IWLAGN_RTC_DATA_LOWER_BOUND); 680 break; 681 case IWL_UCODE_TLV_INIT: 682 set_sec_data(pieces, IWL_UCODE_INIT, 683 IWL_UCODE_SECTION_INST, tlv_data); 684 set_sec_size(pieces, IWL_UCODE_INIT, 685 IWL_UCODE_SECTION_INST, tlv_len); 686 set_sec_offset(pieces, IWL_UCODE_INIT, 687 IWL_UCODE_SECTION_INST, 688 IWLAGN_RTC_INST_LOWER_BOUND); 689 break; 690 case IWL_UCODE_TLV_INIT_DATA: 691 set_sec_data(pieces, IWL_UCODE_INIT, 692 IWL_UCODE_SECTION_DATA, tlv_data); 693 set_sec_size(pieces, IWL_UCODE_INIT, 694 IWL_UCODE_SECTION_DATA, tlv_len); 695 set_sec_offset(pieces, IWL_UCODE_INIT, 696 IWL_UCODE_SECTION_DATA, 697 IWLAGN_RTC_DATA_LOWER_BOUND); 698 break; 699 case IWL_UCODE_TLV_BOOT: 700 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 701 break; 702 case IWL_UCODE_TLV_PROBE_MAX_LEN: 703 if (tlv_len != sizeof(u32)) 704 goto invalid_tlv_len; 705 capa->max_probe_length = 706 le32_to_cpup((__le32 *)tlv_data); 707 break; 708 case IWL_UCODE_TLV_PAN: 709 if (tlv_len) 710 goto invalid_tlv_len; 711 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 712 break; 713 case IWL_UCODE_TLV_FLAGS: 714 /* must be at least one u32 */ 715 if (tlv_len < sizeof(u32)) 716 goto invalid_tlv_len; 717 /* and a proper number of u32s */ 718 if (tlv_len % sizeof(u32)) 719 goto invalid_tlv_len; 720 /* 721 * This driver only reads the first u32 as 722 * right now no more features are defined, 723 * if that changes then either the driver 724 * will not work with the new firmware, or 725 * it'll not take advantage of new features. 726 */ 727 capa->flags = le32_to_cpup((__le32 *)tlv_data); 728 break; 729 case IWL_UCODE_TLV_API_CHANGES_SET: 730 if (tlv_len != sizeof(struct iwl_ucode_api)) 731 goto invalid_tlv_len; 732 if (iwl_set_ucode_api_flags(drv, tlv_data, capa)) 733 goto tlv_error; 734 break; 735 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 736 if (tlv_len != sizeof(struct iwl_ucode_capa)) 737 goto invalid_tlv_len; 738 if (iwl_set_ucode_capabilities(drv, tlv_data, capa)) 739 goto tlv_error; 740 break; 741 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 742 if (tlv_len != sizeof(u32)) 743 goto invalid_tlv_len; 744 pieces->init_evtlog_ptr = 745 le32_to_cpup((__le32 *)tlv_data); 746 break; 747 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 748 if (tlv_len != sizeof(u32)) 749 goto invalid_tlv_len; 750 pieces->init_evtlog_size = 751 le32_to_cpup((__le32 *)tlv_data); 752 break; 753 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 754 if (tlv_len != sizeof(u32)) 755 goto invalid_tlv_len; 756 pieces->init_errlog_ptr = 757 le32_to_cpup((__le32 *)tlv_data); 758 break; 759 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 760 if (tlv_len != sizeof(u32)) 761 goto invalid_tlv_len; 762 pieces->inst_evtlog_ptr = 763 le32_to_cpup((__le32 *)tlv_data); 764 break; 765 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 766 if (tlv_len != sizeof(u32)) 767 goto invalid_tlv_len; 768 pieces->inst_evtlog_size = 769 le32_to_cpup((__le32 *)tlv_data); 770 break; 771 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 772 if (tlv_len != sizeof(u32)) 773 goto invalid_tlv_len; 774 pieces->inst_errlog_ptr = 775 le32_to_cpup((__le32 *)tlv_data); 776 break; 777 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 778 if (tlv_len) 779 goto invalid_tlv_len; 780 drv->fw.enhance_sensitivity_table = true; 781 break; 782 case IWL_UCODE_TLV_WOWLAN_INST: 783 set_sec_data(pieces, IWL_UCODE_WOWLAN, 784 IWL_UCODE_SECTION_INST, tlv_data); 785 set_sec_size(pieces, IWL_UCODE_WOWLAN, 786 IWL_UCODE_SECTION_INST, tlv_len); 787 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 788 IWL_UCODE_SECTION_INST, 789 IWLAGN_RTC_INST_LOWER_BOUND); 790 break; 791 case IWL_UCODE_TLV_WOWLAN_DATA: 792 set_sec_data(pieces, IWL_UCODE_WOWLAN, 793 IWL_UCODE_SECTION_DATA, tlv_data); 794 set_sec_size(pieces, IWL_UCODE_WOWLAN, 795 IWL_UCODE_SECTION_DATA, tlv_len); 796 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 797 IWL_UCODE_SECTION_DATA, 798 IWLAGN_RTC_DATA_LOWER_BOUND); 799 break; 800 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 801 if (tlv_len != sizeof(u32)) 802 goto invalid_tlv_len; 803 capa->standard_phy_calibration_size = 804 le32_to_cpup((__le32 *)tlv_data); 805 break; 806 case IWL_UCODE_TLV_SEC_RT: 807 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 808 tlv_len); 809 drv->fw.mvm_fw = true; 810 break; 811 case IWL_UCODE_TLV_SEC_INIT: 812 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 813 tlv_len); 814 drv->fw.mvm_fw = true; 815 break; 816 case IWL_UCODE_TLV_SEC_WOWLAN: 817 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 818 tlv_len); 819 drv->fw.mvm_fw = true; 820 break; 821 case IWL_UCODE_TLV_DEF_CALIB: 822 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 823 goto invalid_tlv_len; 824 if (iwl_set_default_calib(drv, tlv_data)) 825 goto tlv_error; 826 break; 827 case IWL_UCODE_TLV_PHY_SKU: 828 if (tlv_len != sizeof(u32)) 829 goto invalid_tlv_len; 830 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); 831 drv->fw.valid_tx_ant = (drv->fw.phy_config & 832 FW_PHY_CFG_TX_CHAIN) >> 833 FW_PHY_CFG_TX_CHAIN_POS; 834 drv->fw.valid_rx_ant = (drv->fw.phy_config & 835 FW_PHY_CFG_RX_CHAIN) >> 836 FW_PHY_CFG_RX_CHAIN_POS; 837 break; 838 case IWL_UCODE_TLV_SECURE_SEC_RT: 839 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 840 tlv_len); 841 drv->fw.mvm_fw = true; 842 break; 843 case IWL_UCODE_TLV_SECURE_SEC_INIT: 844 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 845 tlv_len); 846 drv->fw.mvm_fw = true; 847 break; 848 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 849 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 850 tlv_len); 851 drv->fw.mvm_fw = true; 852 break; 853 case IWL_UCODE_TLV_NUM_OF_CPU: 854 if (tlv_len != sizeof(u32)) 855 goto invalid_tlv_len; 856 num_of_cpus = 857 le32_to_cpup((__le32 *)tlv_data); 858 859 if (num_of_cpus == 2) { 860 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 861 true; 862 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 863 true; 864 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 865 true; 866 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 867 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 868 return -EINVAL; 869 } 870 break; 871 case IWL_UCODE_TLV_CSCHEME: 872 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) 873 goto invalid_tlv_len; 874 break; 875 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 876 if (tlv_len != sizeof(u32)) 877 goto invalid_tlv_len; 878 capa->n_scan_channels = 879 le32_to_cpup((__le32 *)tlv_data); 880 break; 881 case IWL_UCODE_TLV_FW_VERSION: { 882 __le32 *ptr = (void *)tlv_data; 883 u32 major, minor; 884 u8 local_comp; 885 886 if (tlv_len != sizeof(u32) * 3) 887 goto invalid_tlv_len; 888 889 major = le32_to_cpup(ptr++); 890 minor = le32_to_cpup(ptr++); 891 local_comp = le32_to_cpup(ptr); 892 893 snprintf(drv->fw.fw_version, 894 sizeof(drv->fw.fw_version), "%u.%u.%u", 895 major, minor, local_comp); 896 break; 897 } 898 case IWL_UCODE_TLV_FW_DBG_DEST: { 899 struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data; 900 901 if (pieces->dbg_dest_tlv) { 902 IWL_ERR(drv, 903 "dbg destination ignored, already exists\n"); 904 break; 905 } 906 907 pieces->dbg_dest_tlv = dest; 908 IWL_INFO(drv, "Found debug destination: %s\n", 909 get_fw_dbg_mode_string(dest->monitor_mode)); 910 911 drv->fw.dbg_dest_reg_num = 912 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv, 913 reg_ops); 914 drv->fw.dbg_dest_reg_num /= 915 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]); 916 917 break; 918 } 919 case IWL_UCODE_TLV_FW_DBG_CONF: { 920 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; 921 922 if (!pieces->dbg_dest_tlv) { 923 IWL_ERR(drv, 924 "Ignore dbg config %d - no destination configured\n", 925 conf->id); 926 break; 927 } 928 929 if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) { 930 IWL_ERR(drv, 931 "Skip unknown configuration: %d\n", 932 conf->id); 933 break; 934 } 935 936 if (pieces->dbg_conf_tlv[conf->id]) { 937 IWL_ERR(drv, 938 "Ignore duplicate dbg config %d\n", 939 conf->id); 940 break; 941 } 942 943 if (conf->usniffer) 944 usniffer_req = true; 945 946 IWL_INFO(drv, "Found debug configuration: %d\n", 947 conf->id); 948 949 pieces->dbg_conf_tlv[conf->id] = conf; 950 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 951 break; 952 } 953 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 954 struct iwl_fw_dbg_trigger_tlv *trigger = 955 (void *)tlv_data; 956 u32 trigger_id = le32_to_cpu(trigger->id); 957 958 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) { 959 IWL_ERR(drv, 960 "Skip unknown trigger: %u\n", 961 trigger->id); 962 break; 963 } 964 965 if (pieces->dbg_trigger_tlv[trigger_id]) { 966 IWL_ERR(drv, 967 "Ignore duplicate dbg trigger %u\n", 968 trigger->id); 969 break; 970 } 971 972 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 973 974 pieces->dbg_trigger_tlv[trigger_id] = trigger; 975 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 976 break; 977 } 978 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 979 usniffer_images = true; 980 iwl_store_ucode_sec(pieces, tlv_data, 981 IWL_UCODE_REGULAR_USNIFFER, 982 tlv_len); 983 break; 984 case IWL_UCODE_TLV_PAGING: 985 if (tlv_len != sizeof(u32)) 986 goto invalid_tlv_len; 987 paging_mem_size = le32_to_cpup((__le32 *)tlv_data); 988 989 IWL_DEBUG_FW(drv, 990 "Paging: paging enabled (size = %u bytes)\n", 991 paging_mem_size); 992 993 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 994 IWL_ERR(drv, 995 "Paging: driver supports up to %lu bytes for paging image\n", 996 MAX_PAGING_IMAGE_SIZE); 997 return -EINVAL; 998 } 999 1000 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1001 IWL_ERR(drv, 1002 "Paging: image isn't multiple %lu\n", 1003 FW_PAGING_SIZE); 1004 return -EINVAL; 1005 } 1006 1007 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1008 paging_mem_size; 1009 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1010 drv->fw.img[usniffer_img].paging_mem_size = 1011 paging_mem_size; 1012 break; 1013 case IWL_UCODE_TLV_SDIO_ADMA_ADDR: 1014 if (tlv_len != sizeof(u32)) 1015 goto invalid_tlv_len; 1016 drv->fw.sdio_adma_addr = 1017 le32_to_cpup((__le32 *)tlv_data); 1018 break; 1019 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1020 if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len)) 1021 goto invalid_tlv_len; 1022 gscan_capa = true; 1023 break; 1024 default: 1025 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1026 break; 1027 } 1028 } 1029 1030 if (usniffer_req && !usniffer_images) { 1031 IWL_ERR(drv, 1032 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1033 return -EINVAL; 1034 } 1035 1036 if (len) { 1037 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1038 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); 1039 return -EINVAL; 1040 } 1041 1042 /* 1043 * If ucode advertises that it supports GSCAN but GSCAN 1044 * capabilities TLV is not present, warn and continue without GSCAN. 1045 */ 1046 if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) && 1047 WARN(!gscan_capa, 1048 "GSCAN is supported but capabilities TLV is unavailable\n")) 1049 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT, 1050 capa->_capa); 1051 1052 return 0; 1053 1054 invalid_tlv_len: 1055 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1056 tlv_error: 1057 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1058 1059 return -EINVAL; 1060} 1061 1062static int iwl_alloc_ucode(struct iwl_drv *drv, 1063 struct iwl_firmware_pieces *pieces, 1064 enum iwl_ucode_type type) 1065{ 1066 int i; 1067 for (i = 0; 1068 i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i); 1069 i++) 1070 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]), 1071 get_sec(pieces, type, i))) 1072 return -ENOMEM; 1073 return 0; 1074} 1075 1076static int validate_sec_sizes(struct iwl_drv *drv, 1077 struct iwl_firmware_pieces *pieces, 1078 const struct iwl_cfg *cfg) 1079{ 1080 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n", 1081 get_sec_size(pieces, IWL_UCODE_REGULAR, 1082 IWL_UCODE_SECTION_INST)); 1083 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n", 1084 get_sec_size(pieces, IWL_UCODE_REGULAR, 1085 IWL_UCODE_SECTION_DATA)); 1086 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n", 1087 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1088 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n", 1089 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1090 1091 /* Verify that uCode images will fit in card's SRAM. */ 1092 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1093 cfg->max_inst_size) { 1094 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n", 1095 get_sec_size(pieces, IWL_UCODE_REGULAR, 1096 IWL_UCODE_SECTION_INST)); 1097 return -1; 1098 } 1099 1100 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1101 cfg->max_data_size) { 1102 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n", 1103 get_sec_size(pieces, IWL_UCODE_REGULAR, 1104 IWL_UCODE_SECTION_DATA)); 1105 return -1; 1106 } 1107 1108 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1109 cfg->max_inst_size) { 1110 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n", 1111 get_sec_size(pieces, IWL_UCODE_INIT, 1112 IWL_UCODE_SECTION_INST)); 1113 return -1; 1114 } 1115 1116 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1117 cfg->max_data_size) { 1118 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n", 1119 get_sec_size(pieces, IWL_UCODE_REGULAR, 1120 IWL_UCODE_SECTION_DATA)); 1121 return -1; 1122 } 1123 return 0; 1124} 1125 1126static struct iwl_op_mode * 1127_iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1128{ 1129 const struct iwl_op_mode_ops *ops = op->ops; 1130 struct dentry *dbgfs_dir = NULL; 1131 struct iwl_op_mode *op_mode = NULL; 1132 1133#ifdef CONFIG_IWLWIFI_DEBUGFS 1134 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1135 drv->dbgfs_drv); 1136 if (!drv->dbgfs_op_mode) { 1137 IWL_ERR(drv, 1138 "failed to create opmode debugfs directory\n"); 1139 return op_mode; 1140 } 1141 dbgfs_dir = drv->dbgfs_op_mode; 1142#endif 1143 1144 op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir); 1145 1146#ifdef CONFIG_IWLWIFI_DEBUGFS 1147 if (!op_mode) { 1148 debugfs_remove_recursive(drv->dbgfs_op_mode); 1149 drv->dbgfs_op_mode = NULL; 1150 } 1151#endif 1152 1153 return op_mode; 1154} 1155 1156static void _iwl_op_mode_stop(struct iwl_drv *drv) 1157{ 1158 /* op_mode can be NULL if its start failed */ 1159 if (drv->op_mode) { 1160 iwl_op_mode_stop(drv->op_mode); 1161 drv->op_mode = NULL; 1162 1163#ifdef CONFIG_IWLWIFI_DEBUGFS 1164 debugfs_remove_recursive(drv->dbgfs_op_mode); 1165 drv->dbgfs_op_mode = NULL; 1166#endif 1167 } 1168} 1169 1170/** 1171 * iwl_req_fw_callback - callback when firmware was loaded 1172 * 1173 * If loaded successfully, copies the firmware into buffers 1174 * for the card to fetch (via DMA). 1175 */ 1176static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1177{ 1178 struct iwl_drv *drv = context; 1179 struct iwl_fw *fw = &drv->fw; 1180 struct iwl_ucode_header *ucode; 1181 struct iwlwifi_opmode_table *op; 1182 int err; 1183 struct iwl_firmware_pieces *pieces; 1184 const unsigned int api_max = drv->cfg->ucode_api_max; 1185 unsigned int api_ok = drv->cfg->ucode_api_ok; 1186 const unsigned int api_min = drv->cfg->ucode_api_min; 1187 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1188 u32 api_ver; 1189 int i; 1190 bool load_module = false; 1191 1192 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1193 fw->ucode_capa.standard_phy_calibration_size = 1194 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1195 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1196 1197 if (!api_ok) 1198 api_ok = api_max; 1199 1200 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1201 if (!pieces) 1202 return; 1203 1204 if (!ucode_raw) { 1205 if (drv->fw_index <= api_ok) 1206 IWL_ERR(drv, 1207 "request for firmware file '%s' failed.\n", 1208 drv->firmware_name); 1209 goto try_again; 1210 } 1211 1212 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1213 drv->firmware_name, ucode_raw->size); 1214 1215 /* Make sure that we got at least the API version number */ 1216 if (ucode_raw->size < 4) { 1217 IWL_ERR(drv, "File size way too small!\n"); 1218 goto try_again; 1219 } 1220 1221 /* Data from ucode file: header followed by uCode images */ 1222 ucode = (struct iwl_ucode_header *)ucode_raw->data; 1223 1224 if (ucode->ver) 1225 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1226 else 1227 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1228 &fw->ucode_capa); 1229 1230 if (err) 1231 goto try_again; 1232 1233 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1234 api_ver = drv->fw.ucode_ver; 1235 else 1236 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1237 1238 /* 1239 * api_ver should match the api version forming part of the 1240 * firmware filename ... but we don't check for that and only rely 1241 * on the API version read from firmware header from here on forward 1242 */ 1243 /* no api version check required for experimental uCode */ 1244 if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) { 1245 if (api_ver < api_min || api_ver > api_max) { 1246 IWL_ERR(drv, 1247 "Driver unable to support your firmware API. " 1248 "Driver supports v%u, firmware is v%u.\n", 1249 api_max, api_ver); 1250 goto try_again; 1251 } 1252 1253 if (api_ver < api_ok) { 1254 if (api_ok != api_max) 1255 IWL_ERR(drv, "Firmware has old API version, " 1256 "expected v%u through v%u, got v%u.\n", 1257 api_ok, api_max, api_ver); 1258 else 1259 IWL_ERR(drv, "Firmware has old API version, " 1260 "expected v%u, got v%u.\n", 1261 api_max, api_ver); 1262 IWL_ERR(drv, "New firmware can be obtained from " 1263 "http://www.intellinuxwireless.org/.\n"); 1264 } 1265 } 1266 1267 /* 1268 * In mvm uCode there is no difference between data and instructions 1269 * sections. 1270 */ 1271 if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg)) 1272 goto try_again; 1273 1274 /* Allocate ucode buffers for card's bus-master loading ... */ 1275 1276 /* Runtime instructions and 2 copies of data: 1277 * 1) unmodified from disk 1278 * 2) backup cache for save/restore during power-downs */ 1279 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1280 if (iwl_alloc_ucode(drv, pieces, i)) 1281 goto out_free_fw; 1282 1283 if (pieces->dbg_dest_tlv) { 1284 drv->fw.dbg_dest_tlv = 1285 kmemdup(pieces->dbg_dest_tlv, 1286 sizeof(*pieces->dbg_dest_tlv) + 1287 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) * 1288 drv->fw.dbg_dest_reg_num, GFP_KERNEL); 1289 1290 if (!drv->fw.dbg_dest_tlv) 1291 goto out_free_fw; 1292 } 1293 1294 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) { 1295 if (pieces->dbg_conf_tlv[i]) { 1296 drv->fw.dbg_conf_tlv_len[i] = 1297 pieces->dbg_conf_tlv_len[i]; 1298 drv->fw.dbg_conf_tlv[i] = 1299 kmemdup(pieces->dbg_conf_tlv[i], 1300 drv->fw.dbg_conf_tlv_len[i], 1301 GFP_KERNEL); 1302 if (!drv->fw.dbg_conf_tlv[i]) 1303 goto out_free_fw; 1304 } 1305 } 1306 1307 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1308 1309 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1310 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1311 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1312 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1313 sizeof(struct iwl_fw_dbg_trigger_cmd); 1314 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1315 sizeof(struct iwl_fw_dbg_trigger_mlme); 1316 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1317 sizeof(struct iwl_fw_dbg_trigger_stats); 1318 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1319 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1320 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1321 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1322 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1323 sizeof(struct iwl_fw_dbg_trigger_time_event); 1324 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1325 sizeof(struct iwl_fw_dbg_trigger_ba); 1326 1327 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) { 1328 if (pieces->dbg_trigger_tlv[i]) { 1329 /* 1330 * If the trigger isn't long enough, WARN and exit. 1331 * Someone is trying to debug something and he won't 1332 * be able to catch the bug he is trying to chase. 1333 * We'd better be noisy to be sure he knows what's 1334 * going on. 1335 */ 1336 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1337 (trigger_tlv_sz[i] + 1338 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1339 goto out_free_fw; 1340 drv->fw.dbg_trigger_tlv_len[i] = 1341 pieces->dbg_trigger_tlv_len[i]; 1342 drv->fw.dbg_trigger_tlv[i] = 1343 kmemdup(pieces->dbg_trigger_tlv[i], 1344 drv->fw.dbg_trigger_tlv_len[i], 1345 GFP_KERNEL); 1346 if (!drv->fw.dbg_trigger_tlv[i]) 1347 goto out_free_fw; 1348 } 1349 } 1350 1351 /* Now that we can no longer fail, copy information */ 1352 1353 /* 1354 * The (size - 16) / 12 formula is based on the information recorded 1355 * for each event, which is of mode 1 (including timestamp) for all 1356 * new microcodes that include this information. 1357 */ 1358 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1359 if (pieces->init_evtlog_size) 1360 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1361 else 1362 fw->init_evtlog_size = 1363 drv->cfg->base_params->max_event_log_size; 1364 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1365 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1366 if (pieces->inst_evtlog_size) 1367 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1368 else 1369 fw->inst_evtlog_size = 1370 drv->cfg->base_params->max_event_log_size; 1371 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1372 1373 /* 1374 * figure out the offset of chain noise reset and gain commands 1375 * base on the size of standard phy calibration commands table size 1376 */ 1377 if (fw->ucode_capa.standard_phy_calibration_size > 1378 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1379 fw->ucode_capa.standard_phy_calibration_size = 1380 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1381 1382 /* We have our copies now, allow OS release its copies */ 1383 release_firmware(ucode_raw); 1384 1385 mutex_lock(&iwlwifi_opmode_table_mtx); 1386 if (fw->mvm_fw) 1387 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1388 else 1389 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1390 1391 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1392 drv->fw.fw_version, op->name); 1393 1394 /* add this device to the list of devices using this op_mode */ 1395 list_add_tail(&drv->list, &op->drv); 1396 1397 if (op->ops) { 1398 drv->op_mode = _iwl_op_mode_start(drv, op); 1399 1400 if (!drv->op_mode) { 1401 mutex_unlock(&iwlwifi_opmode_table_mtx); 1402 goto out_unbind; 1403 } 1404 } else { 1405 load_module = true; 1406 } 1407 mutex_unlock(&iwlwifi_opmode_table_mtx); 1408 1409 /* 1410 * Complete the firmware request last so that 1411 * a driver unbind (stop) doesn't run while we 1412 * are doing the start() above. 1413 */ 1414 complete(&drv->request_firmware_complete); 1415 1416 /* 1417 * Load the module last so we don't block anything 1418 * else from proceeding if the module fails to load 1419 * or hangs loading. 1420 */ 1421 if (load_module) { 1422 err = request_module("%s", op->name); 1423#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR 1424 if (err) 1425 IWL_ERR(drv, 1426 "failed to load module %s (error %d), is dynamic loading enabled?\n", 1427 op->name, err); 1428#endif 1429 } 1430 kfree(pieces); 1431 return; 1432 1433 try_again: 1434 /* try next, if any */ 1435 release_firmware(ucode_raw); 1436 if (iwl_request_firmware(drv, false)) 1437 goto out_unbind; 1438 kfree(pieces); 1439 return; 1440 1441 out_free_fw: 1442 IWL_ERR(drv, "failed to allocate pci memory\n"); 1443 iwl_dealloc_ucode(drv); 1444 release_firmware(ucode_raw); 1445 out_unbind: 1446 kfree(pieces); 1447 complete(&drv->request_firmware_complete); 1448 device_release_driver(drv->trans->dev); 1449} 1450 1451struct iwl_drv *iwl_drv_start(struct iwl_trans *trans, 1452 const struct iwl_cfg *cfg) 1453{ 1454 struct iwl_drv *drv; 1455 int ret; 1456 1457 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1458 if (!drv) { 1459 ret = -ENOMEM; 1460 goto err; 1461 } 1462 1463 drv->trans = trans; 1464 drv->dev = trans->dev; 1465 drv->cfg = cfg; 1466 1467 init_completion(&drv->request_firmware_complete); 1468 INIT_LIST_HEAD(&drv->list); 1469 1470#ifdef CONFIG_IWLWIFI_DEBUGFS 1471 /* Create the device debugfs entries. */ 1472 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1473 iwl_dbgfs_root); 1474 1475 if (!drv->dbgfs_drv) { 1476 IWL_ERR(drv, "failed to create debugfs directory\n"); 1477 ret = -ENOMEM; 1478 goto err_free_drv; 1479 } 1480 1481 /* Create transport layer debugfs dir */ 1482 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1483 1484 if (!drv->trans->dbgfs_dir) { 1485 IWL_ERR(drv, "failed to create transport debugfs directory\n"); 1486 ret = -ENOMEM; 1487 goto err_free_dbgfs; 1488 } 1489#endif 1490 1491 ret = iwl_request_firmware(drv, true); 1492 if (ret) { 1493 IWL_ERR(trans, "Couldn't request the fw\n"); 1494 goto err_fw; 1495 } 1496 1497 return drv; 1498 1499err_fw: 1500#ifdef CONFIG_IWLWIFI_DEBUGFS 1501err_free_dbgfs: 1502 debugfs_remove_recursive(drv->dbgfs_drv); 1503err_free_drv: 1504#endif 1505 kfree(drv); 1506err: 1507 return ERR_PTR(ret); 1508} 1509 1510void iwl_drv_stop(struct iwl_drv *drv) 1511{ 1512 wait_for_completion(&drv->request_firmware_complete); 1513 1514 _iwl_op_mode_stop(drv); 1515 1516 iwl_dealloc_ucode(drv); 1517 1518 mutex_lock(&iwlwifi_opmode_table_mtx); 1519 /* 1520 * List is empty (this item wasn't added) 1521 * when firmware loading failed -- in that 1522 * case we can't remove it from any list. 1523 */ 1524 if (!list_empty(&drv->list)) 1525 list_del(&drv->list); 1526 mutex_unlock(&iwlwifi_opmode_table_mtx); 1527 1528#ifdef CONFIG_IWLWIFI_DEBUGFS 1529 debugfs_remove_recursive(drv->dbgfs_drv); 1530#endif 1531 1532 kfree(drv); 1533} 1534 1535 1536/* shared module parameters */ 1537struct iwl_mod_params iwlwifi_mod_params = { 1538 .restart_fw = true, 1539 .bt_coex_active = true, 1540 .power_level = IWL_POWER_INDEX_1, 1541 .d0i3_disable = true, 1542#ifndef CONFIG_IWLWIFI_UAPSD 1543 .uapsd_disable = true, 1544#endif /* CONFIG_IWLWIFI_UAPSD */ 1545 /* the rest are 0 by default */ 1546}; 1547IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1548 1549int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1550{ 1551 int i; 1552 struct iwl_drv *drv; 1553 struct iwlwifi_opmode_table *op; 1554 1555 mutex_lock(&iwlwifi_opmode_table_mtx); 1556 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1557 op = &iwlwifi_opmode_table[i]; 1558 if (strcmp(op->name, name)) 1559 continue; 1560 op->ops = ops; 1561 /* TODO: need to handle exceptional case */ 1562 list_for_each_entry(drv, &op->drv, list) 1563 drv->op_mode = _iwl_op_mode_start(drv, op); 1564 1565 mutex_unlock(&iwlwifi_opmode_table_mtx); 1566 return 0; 1567 } 1568 mutex_unlock(&iwlwifi_opmode_table_mtx); 1569 return -EIO; 1570} 1571IWL_EXPORT_SYMBOL(iwl_opmode_register); 1572 1573void iwl_opmode_deregister(const char *name) 1574{ 1575 int i; 1576 struct iwl_drv *drv; 1577 1578 mutex_lock(&iwlwifi_opmode_table_mtx); 1579 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1580 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1581 continue; 1582 iwlwifi_opmode_table[i].ops = NULL; 1583 1584 /* call the stop routine for all devices */ 1585 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1586 _iwl_op_mode_stop(drv); 1587 1588 mutex_unlock(&iwlwifi_opmode_table_mtx); 1589 return; 1590 } 1591 mutex_unlock(&iwlwifi_opmode_table_mtx); 1592} 1593IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1594 1595static int __init iwl_drv_init(void) 1596{ 1597 int i; 1598 1599 mutex_init(&iwlwifi_opmode_table_mtx); 1600 1601 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1602 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1603 1604 pr_info(DRV_DESCRIPTION "\n"); 1605 pr_info(DRV_COPYRIGHT "\n"); 1606 1607#ifdef CONFIG_IWLWIFI_DEBUGFS 1608 /* Create the root of iwlwifi debugfs subsystem. */ 1609 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1610 1611 if (!iwl_dbgfs_root) 1612 return -EFAULT; 1613#endif 1614 1615 return iwl_pci_register_driver(); 1616} 1617module_init(iwl_drv_init); 1618 1619static void __exit iwl_drv_exit(void) 1620{ 1621 iwl_pci_unregister_driver(); 1622 1623#ifdef CONFIG_IWLWIFI_DEBUGFS 1624 debugfs_remove_recursive(iwl_dbgfs_root); 1625#endif 1626} 1627module_exit(iwl_drv_exit); 1628 1629#ifdef CONFIG_IWLWIFI_DEBUG 1630module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 1631 S_IRUGO | S_IWUSR); 1632MODULE_PARM_DESC(debug, "debug output mask"); 1633#endif 1634 1635module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO); 1636MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1637module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO); 1638MODULE_PARM_DESC(11n_disable, 1639 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1640module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K, 1641 int, S_IRUGO); 1642MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size (default 0)"); 1643module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO); 1644MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1645 1646module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling, 1647 int, S_IRUGO); 1648MODULE_PARM_DESC(antenna_coupling, 1649 "specify antenna coupling in dB (default: 0 dB)"); 1650 1651module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO); 1652MODULE_PARM_DESC(nvm_file, "NVM file name"); 1653 1654module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, 1655 bool, S_IRUGO); 1656MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)"); 1657 1658module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, 1659 bool, S_IRUGO); 1660MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)"); 1661 1662module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, 1663 bool, S_IRUGO | S_IWUSR); 1664#ifdef CONFIG_IWLWIFI_UAPSD 1665MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)"); 1666#else 1667MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)"); 1668#endif 1669 1670/* 1671 * set bt_coex_active to true, uCode will do kill/defer 1672 * every time the priority line is asserted (BT is sending signals on the 1673 * priority line in the PCIx). 1674 * set bt_coex_active to false, uCode will ignore the BT activity and 1675 * perform the normal operation 1676 * 1677 * User might experience transmit issue on some platform due to WiFi/BT 1678 * co-exist problem. The possible behaviors are: 1679 * Able to scan and finding all the available AP 1680 * Not able to associate with any AP 1681 * On those platforms, WiFi communication can be restored by set 1682 * "bt_coex_active" module parameter to "false" 1683 * 1684 * default: bt_coex_active = true (BT_COEX_ENABLE) 1685 */ 1686module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1687 bool, S_IRUGO); 1688MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1689 1690module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO); 1691MODULE_PARM_DESC(led_mode, "0=system default, " 1692 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1693 1694module_param_named(power_save, iwlwifi_mod_params.power_save, 1695 bool, S_IRUGO); 1696MODULE_PARM_DESC(power_save, 1697 "enable WiFi power management (default: disable)"); 1698 1699module_param_named(power_level, iwlwifi_mod_params.power_level, 1700 int, S_IRUGO); 1701MODULE_PARM_DESC(power_level, 1702 "default power save level (range from 1 - 5, default: 1)"); 1703 1704module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO); 1705MODULE_PARM_DESC(fw_monitor, 1706 "firmware monitor - to debug FW (default: false - needs lots of memory)"); 1707