1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2005-2014, 2018-2021 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/completion.h> 8 #include <linux/dma-mapping.h> 9 #include <linux/firmware.h> 10 #include <linux/module.h> 11 #include <linux/vmalloc.h> 12 13 #include "iwl-drv.h" 14 #include "iwl-csr.h" 15 #include "iwl-debug.h" 16 #include "iwl-trans.h" 17 #include "iwl-op-mode.h" 18 #include "iwl-agn-hw.h" 19 #include "fw/img.h" 20 #include "iwl-dbg-tlv.h" 21 #include "iwl-config.h" 22 #include "iwl-modparams.h" 23 #include "fw/api/alive.h" 24 #include "fw/api/mac.h" 25 26 /****************************************************************************** 27 * 28 * module boiler plate 29 * 30 ******************************************************************************/ 31 32 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" 33 MODULE_DESCRIPTION(DRV_DESCRIPTION); 34 MODULE_LICENSE("GPL"); 35 36 #ifdef CONFIG_IWLWIFI_DEBUGFS 37 static struct dentry *iwl_dbgfs_root; 38 #endif 39 40 /** 41 * struct iwl_drv - drv common data 42 * @list: list of drv structures using this opmode 43 * @fw: the iwl_fw structure 44 * @op_mode: the running op_mode 45 * @trans: transport layer 46 * @dev: for debug prints only 47 * @fw_index: firmware revision to try loading 48 * @firmware_name: composite filename of ucode file to load 49 * @request_firmware_complete: the firmware has been obtained from user space 50 * @dbgfs_drv: debugfs root directory entry 51 * @dbgfs_trans: debugfs transport directory entry 52 * @dbgfs_op_mode: debugfs op_mode directory entry 53 */ 54 struct iwl_drv { 55 struct list_head list; 56 struct iwl_fw fw; 57 58 struct iwl_op_mode *op_mode; 59 struct iwl_trans *trans; 60 struct device *dev; 61 62 int fw_index; /* firmware we're trying to load */ 63 char firmware_name[64]; /* name of firmware file to load */ 64 65 struct completion request_firmware_complete; 66 67 #ifdef CONFIG_IWLWIFI_DEBUGFS 68 struct dentry *dbgfs_drv; 69 struct dentry *dbgfs_trans; 70 struct dentry *dbgfs_op_mode; 71 #endif 72 }; 73 74 enum { 75 DVM_OP_MODE, 76 MVM_OP_MODE, 77 }; 78 79 /* Protects the table contents, i.e. the ops pointer & drv list */ 80 static DEFINE_MUTEX(iwlwifi_opmode_table_mtx); 81 static struct iwlwifi_opmode_table { 82 const char *name; /* name: iwldvm, iwlmvm, etc */ 83 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ 84 struct list_head drv; /* list of devices using this op_mode */ 85 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ 86 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL }, 87 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL }, 88 }; 89 90 #define IWL_DEFAULT_SCAN_CHANNELS 40 91 92 /* 93 * struct fw_sec: Just for the image parsing process. 94 * For the fw storage we are using struct fw_desc. 95 */ 96 struct fw_sec { 97 const void *data; /* the sec data */ 98 size_t size; /* section size */ 99 u32 offset; /* offset of writing in the device */ 100 }; 101 102 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) 103 { 104 vfree(desc->data); 105 desc->data = NULL; 106 desc->len = 0; 107 } 108 109 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) 110 { 111 int i; 112 for (i = 0; i < img->num_sec; i++) 113 iwl_free_fw_desc(drv, &img->sec[i]); 114 kfree(img->sec); 115 } 116 117 static void iwl_dealloc_ucode(struct iwl_drv *drv) 118 { 119 int i; 120 121 kfree(drv->fw.dbg.dest_tlv); 122 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) 123 kfree(drv->fw.dbg.conf_tlv[i]); 124 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) 125 kfree(drv->fw.dbg.trigger_tlv[i]); 126 kfree(drv->fw.dbg.mem_tlv); 127 kfree(drv->fw.iml); 128 kfree(drv->fw.ucode_capa.cmd_versions); 129 kfree(drv->fw.phy_integration_ver); 130 131 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 132 iwl_free_fw_img(drv, drv->fw.img + i); 133 134 /* clear the data for the aborted load case */ 135 memset(&drv->fw, 0, sizeof(drv->fw)); 136 } 137 138 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, 139 struct fw_sec *sec) 140 { 141 void *data; 142 143 desc->data = NULL; 144 145 if (!sec || !sec->size) 146 return -EINVAL; 147 148 data = vmalloc(sec->size); 149 if (!data) 150 return -ENOMEM; 151 152 desc->len = sec->size; 153 desc->offset = sec->offset; 154 memcpy(data, sec->data, desc->len); 155 desc->data = data; 156 157 return 0; 158 } 159 160 static void iwl_req_fw_callback(const struct firmware *ucode_raw, 161 void *context); 162 163 static int iwl_request_firmware(struct iwl_drv *drv, bool first) 164 { 165 const struct iwl_cfg *cfg = drv->trans->cfg; 166 char tag[8]; 167 168 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 && 169 (drv->trans->hw_rev_step != SILICON_B_STEP && 170 drv->trans->hw_rev_step != SILICON_C_STEP)) { 171 IWL_ERR(drv, 172 "Only HW steps B and C are currently supported (0x%0x)\n", 173 drv->trans->hw_rev); 174 return -EINVAL; 175 } 176 177 if (first) { 178 drv->fw_index = cfg->ucode_api_max; 179 sprintf(tag, "%d", drv->fw_index); 180 } else { 181 drv->fw_index--; 182 sprintf(tag, "%d", drv->fw_index); 183 } 184 185 if (drv->fw_index < cfg->ucode_api_min) { 186 IWL_ERR(drv, "no suitable firmware found!\n"); 187 188 if (cfg->ucode_api_min == cfg->ucode_api_max) { 189 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre, 190 cfg->ucode_api_max); 191 } else { 192 IWL_ERR(drv, "minimum version required: %s%d\n", 193 cfg->fw_name_pre, cfg->ucode_api_min); 194 IWL_ERR(drv, "maximum version supported: %s%d\n", 195 cfg->fw_name_pre, cfg->ucode_api_max); 196 } 197 198 IWL_ERR(drv, 199 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n"); 200 return -ENOENT; 201 } 202 203 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", 204 cfg->fw_name_pre, tag); 205 206 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n", 207 drv->firmware_name); 208 209 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 210 drv->trans->dev, 211 GFP_KERNEL, drv, iwl_req_fw_callback); 212 } 213 214 struct fw_img_parsing { 215 struct fw_sec *sec; 216 int sec_counter; 217 }; 218 219 /* 220 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 221 */ 222 struct fw_sec_parsing { 223 __le32 offset; 224 const u8 data[]; 225 } __packed; 226 227 /** 228 * struct iwl_tlv_calib_data - parse the default calib data from TLV 229 * 230 * @ucode_type: the uCode to which the following default calib relates. 231 * @calib: default calibrations. 232 */ 233 struct iwl_tlv_calib_data { 234 __le32 ucode_type; 235 struct iwl_tlv_calib_ctrl calib; 236 } __packed; 237 238 struct iwl_firmware_pieces { 239 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 240 241 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 242 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 243 244 /* FW debug data parsed for driver usage */ 245 bool dbg_dest_tlv_init; 246 const u8 *dbg_dest_ver; 247 union { 248 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 249 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1; 250 }; 251 const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 252 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 253 const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 254 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 255 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv; 256 size_t n_mem_tlv; 257 }; 258 259 /* 260 * These functions are just to extract uCode section data from the pieces 261 * structure. 262 */ 263 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 264 enum iwl_ucode_type type, 265 int sec) 266 { 267 return &pieces->img[type].sec[sec]; 268 } 269 270 static void alloc_sec_data(struct iwl_firmware_pieces *pieces, 271 enum iwl_ucode_type type, 272 int sec) 273 { 274 struct fw_img_parsing *img = &pieces->img[type]; 275 struct fw_sec *sec_memory; 276 int size = sec + 1; 277 size_t alloc_size = sizeof(*img->sec) * size; 278 279 if (img->sec && img->sec_counter >= size) 280 return; 281 282 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL); 283 if (!sec_memory) 284 return; 285 286 img->sec = sec_memory; 287 img->sec_counter = size; 288 } 289 290 static void set_sec_data(struct iwl_firmware_pieces *pieces, 291 enum iwl_ucode_type type, 292 int sec, 293 const void *data) 294 { 295 alloc_sec_data(pieces, type, sec); 296 297 pieces->img[type].sec[sec].data = data; 298 } 299 300 static void set_sec_size(struct iwl_firmware_pieces *pieces, 301 enum iwl_ucode_type type, 302 int sec, 303 size_t size) 304 { 305 alloc_sec_data(pieces, type, sec); 306 307 pieces->img[type].sec[sec].size = size; 308 } 309 310 static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 311 enum iwl_ucode_type type, 312 int sec) 313 { 314 return pieces->img[type].sec[sec].size; 315 } 316 317 static void set_sec_offset(struct iwl_firmware_pieces *pieces, 318 enum iwl_ucode_type type, 319 int sec, 320 u32 offset) 321 { 322 alloc_sec_data(pieces, type, sec); 323 324 pieces->img[type].sec[sec].offset = offset; 325 } 326 327 /* 328 * Gets uCode section from tlv. 329 */ 330 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 331 const void *data, enum iwl_ucode_type type, 332 int size) 333 { 334 struct fw_img_parsing *img; 335 struct fw_sec *sec; 336 const struct fw_sec_parsing *sec_parse; 337 size_t alloc_size; 338 339 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 340 return -1; 341 342 sec_parse = (const struct fw_sec_parsing *)data; 343 344 img = &pieces->img[type]; 345 346 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1); 347 sec = krealloc(img->sec, alloc_size, GFP_KERNEL); 348 if (!sec) 349 return -ENOMEM; 350 img->sec = sec; 351 352 sec = &img->sec[img->sec_counter]; 353 354 sec->offset = le32_to_cpu(sec_parse->offset); 355 sec->data = sec_parse->data; 356 sec->size = size - sizeof(sec_parse->offset); 357 358 ++img->sec_counter; 359 360 return 0; 361 } 362 363 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 364 { 365 const struct iwl_tlv_calib_data *def_calib = 366 (const struct iwl_tlv_calib_data *)data; 367 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 368 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 369 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 370 ucode_type); 371 return -EINVAL; 372 } 373 drv->fw.default_calib[ucode_type].flow_trigger = 374 def_calib->calib.flow_trigger; 375 drv->fw.default_calib[ucode_type].event_trigger = 376 def_calib->calib.event_trigger; 377 378 return 0; 379 } 380 381 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 382 struct iwl_ucode_capabilities *capa) 383 { 384 const struct iwl_ucode_api *ucode_api = (const void *)data; 385 u32 api_index = le32_to_cpu(ucode_api->api_index); 386 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 387 int i; 388 389 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 390 IWL_WARN(drv, 391 "api flags index %d larger than supported by driver\n", 392 api_index); 393 return; 394 } 395 396 for (i = 0; i < 32; i++) { 397 if (api_flags & BIT(i)) 398 __set_bit(i + 32 * api_index, capa->_api); 399 } 400 } 401 402 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 403 struct iwl_ucode_capabilities *capa) 404 { 405 const struct iwl_ucode_capa *ucode_capa = (const void *)data; 406 u32 api_index = le32_to_cpu(ucode_capa->api_index); 407 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 408 int i; 409 410 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 411 IWL_WARN(drv, 412 "capa flags index %d larger than supported by driver\n", 413 api_index); 414 return; 415 } 416 417 for (i = 0; i < 32; i++) { 418 if (api_flags & BIT(i)) 419 __set_bit(i + 32 * api_index, capa->_capa); 420 } 421 } 422 423 static const char *iwl_reduced_fw_name(struct iwl_drv *drv) 424 { 425 const char *name = drv->firmware_name; 426 427 if (strncmp(name, "iwlwifi-", 8) == 0) 428 name += 8; 429 430 return name; 431 } 432 433 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 434 const struct firmware *ucode_raw, 435 struct iwl_firmware_pieces *pieces) 436 { 437 const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data; 438 u32 api_ver, hdr_size, build; 439 char buildstr[25]; 440 const u8 *src; 441 442 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 443 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 444 445 switch (api_ver) { 446 default: 447 hdr_size = 28; 448 if (ucode_raw->size < hdr_size) { 449 IWL_ERR(drv, "File size too small!\n"); 450 return -EINVAL; 451 } 452 build = le32_to_cpu(ucode->u.v2.build); 453 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 454 le32_to_cpu(ucode->u.v2.inst_size)); 455 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 456 le32_to_cpu(ucode->u.v2.data_size)); 457 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 458 le32_to_cpu(ucode->u.v2.init_size)); 459 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 460 le32_to_cpu(ucode->u.v2.init_data_size)); 461 src = ucode->u.v2.data; 462 break; 463 case 0: 464 case 1: 465 case 2: 466 hdr_size = 24; 467 if (ucode_raw->size < hdr_size) { 468 IWL_ERR(drv, "File size too small!\n"); 469 return -EINVAL; 470 } 471 build = 0; 472 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 473 le32_to_cpu(ucode->u.v1.inst_size)); 474 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 475 le32_to_cpu(ucode->u.v1.data_size)); 476 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 477 le32_to_cpu(ucode->u.v1.init_size)); 478 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 479 le32_to_cpu(ucode->u.v1.init_data_size)); 480 src = ucode->u.v1.data; 481 break; 482 } 483 484 if (build) 485 sprintf(buildstr, " build %u", build); 486 else 487 buildstr[0] = '\0'; 488 489 snprintf(drv->fw.fw_version, 490 sizeof(drv->fw.fw_version), 491 "%u.%u.%u.%u%s %s", 492 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 493 IWL_UCODE_MINOR(drv->fw.ucode_ver), 494 IWL_UCODE_API(drv->fw.ucode_ver), 495 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 496 buildstr, iwl_reduced_fw_name(drv)); 497 498 /* Verify size of file vs. image size info in file's header */ 499 500 if (ucode_raw->size != hdr_size + 501 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 502 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 503 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 504 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 505 506 IWL_ERR(drv, 507 "uCode file size %d does not match expected size\n", 508 (int)ucode_raw->size); 509 return -EINVAL; 510 } 511 512 513 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 514 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 515 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 516 IWLAGN_RTC_INST_LOWER_BOUND); 517 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 518 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 519 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 520 IWLAGN_RTC_DATA_LOWER_BOUND); 521 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 522 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 523 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 524 IWLAGN_RTC_INST_LOWER_BOUND); 525 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 526 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 527 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 528 IWLAGN_RTC_DATA_LOWER_BOUND); 529 return 0; 530 } 531 532 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv, 533 enum iwl_ucode_tlv_type tlv_type, 534 const void *tlv_data, u32 tlv_len) 535 { 536 const struct iwl_fw_dump_exclude *fw = tlv_data; 537 struct iwl_dump_exclude *excl; 538 539 if (tlv_len < sizeof(*fw)) 540 return; 541 542 if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) { 543 excl = &drv->fw.dump_excl[0]; 544 545 /* second time we find this, it's for WoWLAN */ 546 if (excl->addr) 547 excl = &drv->fw.dump_excl_wowlan[0]; 548 } else if (fw_has_capa(&drv->fw.ucode_capa, 549 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) { 550 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */ 551 excl = &drv->fw.dump_excl[0]; 552 } else { 553 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */ 554 excl = &drv->fw.dump_excl_wowlan[0]; 555 } 556 557 if (excl->addr) 558 excl++; 559 560 if (excl->addr) { 561 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n"); 562 return; 563 } 564 565 excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL; 566 excl->size = le32_to_cpu(fw->size); 567 } 568 569 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv, 570 const struct iwl_ucode_tlv *tlv) 571 { 572 const struct iwl_fw_ini_region_tlv *region; 573 u32 length = le32_to_cpu(tlv->length); 574 u32 addr; 575 576 if (length < offsetof(typeof(*region), special_mem) + 577 sizeof(region->special_mem)) 578 return; 579 580 region = (const void *)tlv->data; 581 addr = le32_to_cpu(region->special_mem.base_addr); 582 addr += le32_to_cpu(region->special_mem.offset); 583 addr &= ~FW_ADDR_CACHE_CONTROL; 584 585 if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY) 586 return; 587 588 switch (region->sub_type) { 589 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE: 590 drv->trans->dbg.umac_error_event_table = addr; 591 drv->trans->dbg.error_event_table_tlv_status |= 592 IWL_ERROR_EVENT_TABLE_UMAC; 593 break; 594 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE: 595 drv->trans->dbg.lmac_error_event_table[0] = addr; 596 drv->trans->dbg.error_event_table_tlv_status |= 597 IWL_ERROR_EVENT_TABLE_LMAC1; 598 break; 599 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE: 600 drv->trans->dbg.lmac_error_event_table[1] = addr; 601 drv->trans->dbg.error_event_table_tlv_status |= 602 IWL_ERROR_EVENT_TABLE_LMAC2; 603 break; 604 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE: 605 drv->trans->dbg.tcm_error_event_table[0] = addr; 606 drv->trans->dbg.error_event_table_tlv_status |= 607 IWL_ERROR_EVENT_TABLE_TCM1; 608 break; 609 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE: 610 drv->trans->dbg.tcm_error_event_table[1] = addr; 611 drv->trans->dbg.error_event_table_tlv_status |= 612 IWL_ERROR_EVENT_TABLE_TCM2; 613 break; 614 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE: 615 drv->trans->dbg.rcm_error_event_table[0] = addr; 616 drv->trans->dbg.error_event_table_tlv_status |= 617 IWL_ERROR_EVENT_TABLE_RCM1; 618 break; 619 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE: 620 drv->trans->dbg.rcm_error_event_table[1] = addr; 621 drv->trans->dbg.error_event_table_tlv_status |= 622 IWL_ERROR_EVENT_TABLE_RCM2; 623 break; 624 default: 625 break; 626 } 627 } 628 629 static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 630 const struct firmware *ucode_raw, 631 struct iwl_firmware_pieces *pieces, 632 struct iwl_ucode_capabilities *capa, 633 bool *usniffer_images) 634 { 635 const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data; 636 const struct iwl_ucode_tlv *tlv; 637 size_t len = ucode_raw->size; 638 const u8 *data; 639 u32 tlv_len; 640 u32 usniffer_img; 641 enum iwl_ucode_tlv_type tlv_type; 642 const u8 *tlv_data; 643 char buildstr[25]; 644 u32 build, paging_mem_size; 645 int num_of_cpus; 646 bool usniffer_req = false; 647 648 if (len < sizeof(*ucode)) { 649 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 650 return -EINVAL; 651 } 652 653 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 654 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 655 le32_to_cpu(ucode->magic)); 656 return -EINVAL; 657 } 658 659 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 660 memcpy(drv->fw.human_readable, ucode->human_readable, 661 sizeof(drv->fw.human_readable)); 662 build = le32_to_cpu(ucode->build); 663 664 if (build) 665 sprintf(buildstr, " build %u", build); 666 else 667 buildstr[0] = '\0'; 668 669 snprintf(drv->fw.fw_version, 670 sizeof(drv->fw.fw_version), 671 "%u.%u.%u.%u%s %s", 672 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 673 IWL_UCODE_MINOR(drv->fw.ucode_ver), 674 IWL_UCODE_API(drv->fw.ucode_ver), 675 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 676 buildstr, iwl_reduced_fw_name(drv)); 677 678 data = ucode->data; 679 680 len -= sizeof(*ucode); 681 682 while (len >= sizeof(*tlv)) { 683 len -= sizeof(*tlv); 684 685 tlv = (const void *)data; 686 tlv_len = le32_to_cpu(tlv->length); 687 tlv_type = le32_to_cpu(tlv->type); 688 tlv_data = tlv->data; 689 690 if (len < tlv_len) { 691 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 692 len, tlv_len); 693 return -EINVAL; 694 } 695 len -= ALIGN(tlv_len, 4); 696 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 697 698 switch (tlv_type) { 699 case IWL_UCODE_TLV_INST: 700 set_sec_data(pieces, IWL_UCODE_REGULAR, 701 IWL_UCODE_SECTION_INST, tlv_data); 702 set_sec_size(pieces, IWL_UCODE_REGULAR, 703 IWL_UCODE_SECTION_INST, tlv_len); 704 set_sec_offset(pieces, IWL_UCODE_REGULAR, 705 IWL_UCODE_SECTION_INST, 706 IWLAGN_RTC_INST_LOWER_BOUND); 707 break; 708 case IWL_UCODE_TLV_DATA: 709 set_sec_data(pieces, IWL_UCODE_REGULAR, 710 IWL_UCODE_SECTION_DATA, tlv_data); 711 set_sec_size(pieces, IWL_UCODE_REGULAR, 712 IWL_UCODE_SECTION_DATA, tlv_len); 713 set_sec_offset(pieces, IWL_UCODE_REGULAR, 714 IWL_UCODE_SECTION_DATA, 715 IWLAGN_RTC_DATA_LOWER_BOUND); 716 break; 717 case IWL_UCODE_TLV_INIT: 718 set_sec_data(pieces, IWL_UCODE_INIT, 719 IWL_UCODE_SECTION_INST, tlv_data); 720 set_sec_size(pieces, IWL_UCODE_INIT, 721 IWL_UCODE_SECTION_INST, tlv_len); 722 set_sec_offset(pieces, IWL_UCODE_INIT, 723 IWL_UCODE_SECTION_INST, 724 IWLAGN_RTC_INST_LOWER_BOUND); 725 break; 726 case IWL_UCODE_TLV_INIT_DATA: 727 set_sec_data(pieces, IWL_UCODE_INIT, 728 IWL_UCODE_SECTION_DATA, tlv_data); 729 set_sec_size(pieces, IWL_UCODE_INIT, 730 IWL_UCODE_SECTION_DATA, tlv_len); 731 set_sec_offset(pieces, IWL_UCODE_INIT, 732 IWL_UCODE_SECTION_DATA, 733 IWLAGN_RTC_DATA_LOWER_BOUND); 734 break; 735 case IWL_UCODE_TLV_BOOT: 736 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 737 break; 738 case IWL_UCODE_TLV_PROBE_MAX_LEN: 739 if (tlv_len != sizeof(u32)) 740 goto invalid_tlv_len; 741 capa->max_probe_length = 742 le32_to_cpup((const __le32 *)tlv_data); 743 break; 744 case IWL_UCODE_TLV_PAN: 745 if (tlv_len) 746 goto invalid_tlv_len; 747 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 748 break; 749 case IWL_UCODE_TLV_FLAGS: 750 /* must be at least one u32 */ 751 if (tlv_len < sizeof(u32)) 752 goto invalid_tlv_len; 753 /* and a proper number of u32s */ 754 if (tlv_len % sizeof(u32)) 755 goto invalid_tlv_len; 756 /* 757 * This driver only reads the first u32 as 758 * right now no more features are defined, 759 * if that changes then either the driver 760 * will not work with the new firmware, or 761 * it'll not take advantage of new features. 762 */ 763 capa->flags = le32_to_cpup((const __le32 *)tlv_data); 764 break; 765 case IWL_UCODE_TLV_API_CHANGES_SET: 766 if (tlv_len != sizeof(struct iwl_ucode_api)) 767 goto invalid_tlv_len; 768 iwl_set_ucode_api_flags(drv, tlv_data, capa); 769 break; 770 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 771 if (tlv_len != sizeof(struct iwl_ucode_capa)) 772 goto invalid_tlv_len; 773 iwl_set_ucode_capabilities(drv, tlv_data, capa); 774 break; 775 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 776 if (tlv_len != sizeof(u32)) 777 goto invalid_tlv_len; 778 pieces->init_evtlog_ptr = 779 le32_to_cpup((const __le32 *)tlv_data); 780 break; 781 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 782 if (tlv_len != sizeof(u32)) 783 goto invalid_tlv_len; 784 pieces->init_evtlog_size = 785 le32_to_cpup((const __le32 *)tlv_data); 786 break; 787 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 788 if (tlv_len != sizeof(u32)) 789 goto invalid_tlv_len; 790 pieces->init_errlog_ptr = 791 le32_to_cpup((const __le32 *)tlv_data); 792 break; 793 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 794 if (tlv_len != sizeof(u32)) 795 goto invalid_tlv_len; 796 pieces->inst_evtlog_ptr = 797 le32_to_cpup((const __le32 *)tlv_data); 798 break; 799 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 800 if (tlv_len != sizeof(u32)) 801 goto invalid_tlv_len; 802 pieces->inst_evtlog_size = 803 le32_to_cpup((const __le32 *)tlv_data); 804 break; 805 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 806 if (tlv_len != sizeof(u32)) 807 goto invalid_tlv_len; 808 pieces->inst_errlog_ptr = 809 le32_to_cpup((const __le32 *)tlv_data); 810 break; 811 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 812 if (tlv_len) 813 goto invalid_tlv_len; 814 drv->fw.enhance_sensitivity_table = true; 815 break; 816 case IWL_UCODE_TLV_WOWLAN_INST: 817 set_sec_data(pieces, IWL_UCODE_WOWLAN, 818 IWL_UCODE_SECTION_INST, tlv_data); 819 set_sec_size(pieces, IWL_UCODE_WOWLAN, 820 IWL_UCODE_SECTION_INST, tlv_len); 821 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 822 IWL_UCODE_SECTION_INST, 823 IWLAGN_RTC_INST_LOWER_BOUND); 824 break; 825 case IWL_UCODE_TLV_WOWLAN_DATA: 826 set_sec_data(pieces, IWL_UCODE_WOWLAN, 827 IWL_UCODE_SECTION_DATA, tlv_data); 828 set_sec_size(pieces, IWL_UCODE_WOWLAN, 829 IWL_UCODE_SECTION_DATA, tlv_len); 830 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 831 IWL_UCODE_SECTION_DATA, 832 IWLAGN_RTC_DATA_LOWER_BOUND); 833 break; 834 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 835 if (tlv_len != sizeof(u32)) 836 goto invalid_tlv_len; 837 capa->standard_phy_calibration_size = 838 le32_to_cpup((const __le32 *)tlv_data); 839 break; 840 case IWL_UCODE_TLV_SEC_RT: 841 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 842 tlv_len); 843 drv->fw.type = IWL_FW_MVM; 844 break; 845 case IWL_UCODE_TLV_SEC_INIT: 846 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 847 tlv_len); 848 drv->fw.type = IWL_FW_MVM; 849 break; 850 case IWL_UCODE_TLV_SEC_WOWLAN: 851 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 852 tlv_len); 853 drv->fw.type = IWL_FW_MVM; 854 break; 855 case IWL_UCODE_TLV_DEF_CALIB: 856 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 857 goto invalid_tlv_len; 858 if (iwl_set_default_calib(drv, tlv_data)) 859 goto tlv_error; 860 break; 861 case IWL_UCODE_TLV_PHY_SKU: 862 if (tlv_len != sizeof(u32)) 863 goto invalid_tlv_len; 864 drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data); 865 drv->fw.valid_tx_ant = (drv->fw.phy_config & 866 FW_PHY_CFG_TX_CHAIN) >> 867 FW_PHY_CFG_TX_CHAIN_POS; 868 drv->fw.valid_rx_ant = (drv->fw.phy_config & 869 FW_PHY_CFG_RX_CHAIN) >> 870 FW_PHY_CFG_RX_CHAIN_POS; 871 break; 872 case IWL_UCODE_TLV_SECURE_SEC_RT: 873 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 874 tlv_len); 875 drv->fw.type = IWL_FW_MVM; 876 break; 877 case IWL_UCODE_TLV_SECURE_SEC_INIT: 878 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 879 tlv_len); 880 drv->fw.type = IWL_FW_MVM; 881 break; 882 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 883 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 884 tlv_len); 885 drv->fw.type = IWL_FW_MVM; 886 break; 887 case IWL_UCODE_TLV_NUM_OF_CPU: 888 if (tlv_len != sizeof(u32)) 889 goto invalid_tlv_len; 890 num_of_cpus = 891 le32_to_cpup((const __le32 *)tlv_data); 892 893 if (num_of_cpus == 2) { 894 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 895 true; 896 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 897 true; 898 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 899 true; 900 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 901 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 902 return -EINVAL; 903 } 904 break; 905 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 906 if (tlv_len != sizeof(u32)) 907 goto invalid_tlv_len; 908 capa->n_scan_channels = 909 le32_to_cpup((const __le32 *)tlv_data); 910 break; 911 case IWL_UCODE_TLV_FW_VERSION: { 912 const __le32 *ptr = (const void *)tlv_data; 913 u32 major, minor; 914 u8 local_comp; 915 916 if (tlv_len != sizeof(u32) * 3) 917 goto invalid_tlv_len; 918 919 major = le32_to_cpup(ptr++); 920 minor = le32_to_cpup(ptr++); 921 local_comp = le32_to_cpup(ptr); 922 923 if (major >= 35) 924 snprintf(drv->fw.fw_version, 925 sizeof(drv->fw.fw_version), 926 "%u.%08x.%u %s", major, minor, 927 local_comp, iwl_reduced_fw_name(drv)); 928 else 929 snprintf(drv->fw.fw_version, 930 sizeof(drv->fw.fw_version), 931 "%u.%u.%u %s", major, minor, 932 local_comp, iwl_reduced_fw_name(drv)); 933 break; 934 } 935 case IWL_UCODE_TLV_FW_DBG_DEST: { 936 const struct iwl_fw_dbg_dest_tlv *dest = NULL; 937 const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL; 938 u8 mon_mode; 939 940 pieces->dbg_dest_ver = (const u8 *)tlv_data; 941 if (*pieces->dbg_dest_ver == 1) { 942 dest = (const void *)tlv_data; 943 } else if (*pieces->dbg_dest_ver == 0) { 944 dest_v1 = (const void *)tlv_data; 945 } else { 946 IWL_ERR(drv, 947 "The version is %d, and it is invalid\n", 948 *pieces->dbg_dest_ver); 949 break; 950 } 951 952 if (pieces->dbg_dest_tlv_init) { 953 IWL_ERR(drv, 954 "dbg destination ignored, already exists\n"); 955 break; 956 } 957 958 pieces->dbg_dest_tlv_init = true; 959 960 if (dest_v1) { 961 pieces->dbg_dest_tlv_v1 = dest_v1; 962 mon_mode = dest_v1->monitor_mode; 963 } else { 964 pieces->dbg_dest_tlv = dest; 965 mon_mode = dest->monitor_mode; 966 } 967 968 IWL_INFO(drv, "Found debug destination: %s\n", 969 get_fw_dbg_mode_string(mon_mode)); 970 971 drv->fw.dbg.n_dest_reg = (dest_v1) ? 972 tlv_len - 973 offsetof(struct iwl_fw_dbg_dest_tlv_v1, 974 reg_ops) : 975 tlv_len - 976 offsetof(struct iwl_fw_dbg_dest_tlv, 977 reg_ops); 978 979 drv->fw.dbg.n_dest_reg /= 980 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]); 981 982 break; 983 } 984 case IWL_UCODE_TLV_FW_DBG_CONF: { 985 const struct iwl_fw_dbg_conf_tlv *conf = 986 (const void *)tlv_data; 987 988 if (!pieces->dbg_dest_tlv_init) { 989 IWL_ERR(drv, 990 "Ignore dbg config %d - no destination configured\n", 991 conf->id); 992 break; 993 } 994 995 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) { 996 IWL_ERR(drv, 997 "Skip unknown configuration: %d\n", 998 conf->id); 999 break; 1000 } 1001 1002 if (pieces->dbg_conf_tlv[conf->id]) { 1003 IWL_ERR(drv, 1004 "Ignore duplicate dbg config %d\n", 1005 conf->id); 1006 break; 1007 } 1008 1009 if (conf->usniffer) 1010 usniffer_req = true; 1011 1012 IWL_INFO(drv, "Found debug configuration: %d\n", 1013 conf->id); 1014 1015 pieces->dbg_conf_tlv[conf->id] = conf; 1016 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 1017 break; 1018 } 1019 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 1020 const struct iwl_fw_dbg_trigger_tlv *trigger = 1021 (const void *)tlv_data; 1022 u32 trigger_id = le32_to_cpu(trigger->id); 1023 1024 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) { 1025 IWL_ERR(drv, 1026 "Skip unknown trigger: %u\n", 1027 trigger->id); 1028 break; 1029 } 1030 1031 if (pieces->dbg_trigger_tlv[trigger_id]) { 1032 IWL_ERR(drv, 1033 "Ignore duplicate dbg trigger %u\n", 1034 trigger->id); 1035 break; 1036 } 1037 1038 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 1039 1040 pieces->dbg_trigger_tlv[trigger_id] = trigger; 1041 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 1042 break; 1043 } 1044 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: { 1045 if (tlv_len != sizeof(u32)) { 1046 IWL_ERR(drv, 1047 "dbg lst mask size incorrect, skip\n"); 1048 break; 1049 } 1050 1051 drv->fw.dbg.dump_mask = 1052 le32_to_cpup((const __le32 *)tlv_data); 1053 break; 1054 } 1055 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 1056 *usniffer_images = true; 1057 iwl_store_ucode_sec(pieces, tlv_data, 1058 IWL_UCODE_REGULAR_USNIFFER, 1059 tlv_len); 1060 break; 1061 case IWL_UCODE_TLV_PAGING: 1062 if (tlv_len != sizeof(u32)) 1063 goto invalid_tlv_len; 1064 paging_mem_size = le32_to_cpup((const __le32 *)tlv_data); 1065 1066 IWL_DEBUG_FW(drv, 1067 "Paging: paging enabled (size = %u bytes)\n", 1068 paging_mem_size); 1069 1070 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 1071 IWL_ERR(drv, 1072 "Paging: driver supports up to %lu bytes for paging image\n", 1073 MAX_PAGING_IMAGE_SIZE); 1074 return -EINVAL; 1075 } 1076 1077 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1078 IWL_ERR(drv, 1079 "Paging: image isn't multiple %lu\n", 1080 FW_PAGING_SIZE); 1081 return -EINVAL; 1082 } 1083 1084 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1085 paging_mem_size; 1086 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1087 drv->fw.img[usniffer_img].paging_mem_size = 1088 paging_mem_size; 1089 break; 1090 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1091 /* ignored */ 1092 break; 1093 case IWL_UCODE_TLV_FW_MEM_SEG: { 1094 const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = 1095 (const void *)tlv_data; 1096 size_t size; 1097 struct iwl_fw_dbg_mem_seg_tlv *n; 1098 1099 if (tlv_len != (sizeof(*dbg_mem))) 1100 goto invalid_tlv_len; 1101 1102 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", 1103 dbg_mem->data_type); 1104 1105 size = sizeof(*pieces->dbg_mem_tlv) * 1106 (pieces->n_mem_tlv + 1); 1107 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL); 1108 if (!n) 1109 return -ENOMEM; 1110 pieces->dbg_mem_tlv = n; 1111 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem; 1112 pieces->n_mem_tlv++; 1113 break; 1114 } 1115 case IWL_UCODE_TLV_IML: { 1116 drv->fw.iml_len = tlv_len; 1117 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1118 if (!drv->fw.iml) 1119 return -ENOMEM; 1120 break; 1121 } 1122 case IWL_UCODE_TLV_FW_RECOVERY_INFO: { 1123 const struct { 1124 __le32 buf_addr; 1125 __le32 buf_size; 1126 } *recov_info = (const void *)tlv_data; 1127 1128 if (tlv_len != sizeof(*recov_info)) 1129 goto invalid_tlv_len; 1130 capa->error_log_addr = 1131 le32_to_cpu(recov_info->buf_addr); 1132 capa->error_log_size = 1133 le32_to_cpu(recov_info->buf_size); 1134 } 1135 break; 1136 case IWL_UCODE_TLV_FW_FSEQ_VERSION: { 1137 const struct { 1138 u8 version[32]; 1139 u8 sha1[20]; 1140 } *fseq_ver = (const void *)tlv_data; 1141 1142 if (tlv_len != sizeof(*fseq_ver)) 1143 goto invalid_tlv_len; 1144 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n", 1145 fseq_ver->version); 1146 } 1147 break; 1148 case IWL_UCODE_TLV_FW_NUM_STATIONS: 1149 if (tlv_len != sizeof(u32)) 1150 goto invalid_tlv_len; 1151 if (le32_to_cpup((const __le32 *)tlv_data) > 1152 IWL_MVM_STATION_COUNT_MAX) { 1153 IWL_ERR(drv, 1154 "%d is an invalid number of station\n", 1155 le32_to_cpup((const __le32 *)tlv_data)); 1156 goto tlv_error; 1157 } 1158 capa->num_stations = 1159 le32_to_cpup((const __le32 *)tlv_data); 1160 break; 1161 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: { 1162 const struct iwl_umac_debug_addrs *dbg_ptrs = 1163 (const void *)tlv_data; 1164 1165 if (tlv_len != sizeof(*dbg_ptrs)) 1166 goto invalid_tlv_len; 1167 if (drv->trans->trans_cfg->device_family < 1168 IWL_DEVICE_FAMILY_22000) 1169 break; 1170 drv->trans->dbg.umac_error_event_table = 1171 le32_to_cpu(dbg_ptrs->error_info_addr) & 1172 ~FW_ADDR_CACHE_CONTROL; 1173 drv->trans->dbg.error_event_table_tlv_status |= 1174 IWL_ERROR_EVENT_TABLE_UMAC; 1175 break; 1176 } 1177 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: { 1178 const struct iwl_lmac_debug_addrs *dbg_ptrs = 1179 (const void *)tlv_data; 1180 1181 if (tlv_len != sizeof(*dbg_ptrs)) 1182 goto invalid_tlv_len; 1183 if (drv->trans->trans_cfg->device_family < 1184 IWL_DEVICE_FAMILY_22000) 1185 break; 1186 drv->trans->dbg.lmac_error_event_table[0] = 1187 le32_to_cpu(dbg_ptrs->error_event_table_ptr) & 1188 ~FW_ADDR_CACHE_CONTROL; 1189 drv->trans->dbg.error_event_table_tlv_status |= 1190 IWL_ERROR_EVENT_TABLE_LMAC1; 1191 break; 1192 } 1193 case IWL_UCODE_TLV_TYPE_REGIONS: 1194 iwl_parse_dbg_tlv_assert_tables(drv, tlv); 1195 fallthrough; 1196 case IWL_UCODE_TLV_TYPE_DEBUG_INFO: 1197 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION: 1198 case IWL_UCODE_TLV_TYPE_HCMD: 1199 case IWL_UCODE_TLV_TYPE_TRIGGERS: 1200 case IWL_UCODE_TLV_TYPE_CONF_SET: 1201 if (iwlwifi_mod_params.enable_ini) 1202 iwl_dbg_tlv_alloc(drv->trans, tlv, false); 1203 break; 1204 case IWL_UCODE_TLV_CMD_VERSIONS: 1205 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) { 1206 IWL_ERR(drv, 1207 "Invalid length for command versions: %u\n", 1208 tlv_len); 1209 tlv_len /= sizeof(struct iwl_fw_cmd_version); 1210 tlv_len *= sizeof(struct iwl_fw_cmd_version); 1211 } 1212 if (WARN_ON(capa->cmd_versions)) 1213 return -EINVAL; 1214 capa->cmd_versions = kmemdup(tlv_data, tlv_len, 1215 GFP_KERNEL); 1216 if (!capa->cmd_versions) 1217 return -ENOMEM; 1218 capa->n_cmd_versions = 1219 tlv_len / sizeof(struct iwl_fw_cmd_version); 1220 break; 1221 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION: 1222 if (drv->fw.phy_integration_ver) { 1223 IWL_ERR(drv, 1224 "phy integration str ignored, already exists\n"); 1225 break; 1226 } 1227 1228 drv->fw.phy_integration_ver = 1229 kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1230 if (!drv->fw.phy_integration_ver) 1231 return -ENOMEM; 1232 drv->fw.phy_integration_ver_len = tlv_len; 1233 break; 1234 case IWL_UCODE_TLV_SEC_TABLE_ADDR: 1235 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR: 1236 iwl_drv_set_dump_exclude(drv, tlv_type, 1237 tlv_data, tlv_len); 1238 break; 1239 default: 1240 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1241 break; 1242 } 1243 } 1244 1245 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 1246 usniffer_req && !*usniffer_images) { 1247 IWL_ERR(drv, 1248 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1249 return -EINVAL; 1250 } 1251 1252 if (len) { 1253 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1254 iwl_print_hex_dump(drv, IWL_DL_FW, data, len); 1255 return -EINVAL; 1256 } 1257 1258 return 0; 1259 1260 invalid_tlv_len: 1261 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1262 tlv_error: 1263 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1264 1265 return -EINVAL; 1266 } 1267 1268 static int iwl_alloc_ucode(struct iwl_drv *drv, 1269 struct iwl_firmware_pieces *pieces, 1270 enum iwl_ucode_type type) 1271 { 1272 int i; 1273 struct fw_desc *sec; 1274 1275 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL); 1276 if (!sec) 1277 return -ENOMEM; 1278 drv->fw.img[type].sec = sec; 1279 drv->fw.img[type].num_sec = pieces->img[type].sec_counter; 1280 1281 for (i = 0; i < pieces->img[type].sec_counter; i++) 1282 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i))) 1283 return -ENOMEM; 1284 1285 return 0; 1286 } 1287 1288 static int validate_sec_sizes(struct iwl_drv *drv, 1289 struct iwl_firmware_pieces *pieces, 1290 const struct iwl_cfg *cfg) 1291 { 1292 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n", 1293 get_sec_size(pieces, IWL_UCODE_REGULAR, 1294 IWL_UCODE_SECTION_INST)); 1295 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n", 1296 get_sec_size(pieces, IWL_UCODE_REGULAR, 1297 IWL_UCODE_SECTION_DATA)); 1298 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n", 1299 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1300 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n", 1301 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1302 1303 /* Verify that uCode images will fit in card's SRAM. */ 1304 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1305 cfg->max_inst_size) { 1306 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n", 1307 get_sec_size(pieces, IWL_UCODE_REGULAR, 1308 IWL_UCODE_SECTION_INST)); 1309 return -1; 1310 } 1311 1312 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1313 cfg->max_data_size) { 1314 IWL_ERR(drv, "uCode data len %zd too large to fit in\n", 1315 get_sec_size(pieces, IWL_UCODE_REGULAR, 1316 IWL_UCODE_SECTION_DATA)); 1317 return -1; 1318 } 1319 1320 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1321 cfg->max_inst_size) { 1322 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n", 1323 get_sec_size(pieces, IWL_UCODE_INIT, 1324 IWL_UCODE_SECTION_INST)); 1325 return -1; 1326 } 1327 1328 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1329 cfg->max_data_size) { 1330 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n", 1331 get_sec_size(pieces, IWL_UCODE_REGULAR, 1332 IWL_UCODE_SECTION_DATA)); 1333 return -1; 1334 } 1335 return 0; 1336 } 1337 1338 static struct iwl_op_mode * 1339 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1340 { 1341 const struct iwl_op_mode_ops *ops = op->ops; 1342 struct dentry *dbgfs_dir = NULL; 1343 struct iwl_op_mode *op_mode = NULL; 1344 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY; 1345 1346 for (retry = 0; retry <= max_retry; retry++) { 1347 1348 #ifdef CONFIG_IWLWIFI_DEBUGFS 1349 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1350 drv->dbgfs_drv); 1351 dbgfs_dir = drv->dbgfs_op_mode; 1352 #endif 1353 1354 op_mode = ops->start(drv->trans, drv->trans->cfg, 1355 &drv->fw, dbgfs_dir); 1356 1357 if (op_mode) 1358 return op_mode; 1359 1360 IWL_ERR(drv, "retry init count %d\n", retry); 1361 1362 #ifdef CONFIG_IWLWIFI_DEBUGFS 1363 debugfs_remove_recursive(drv->dbgfs_op_mode); 1364 drv->dbgfs_op_mode = NULL; 1365 #endif 1366 } 1367 1368 return NULL; 1369 } 1370 1371 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1372 { 1373 /* op_mode can be NULL if its start failed */ 1374 if (drv->op_mode) { 1375 iwl_op_mode_stop(drv->op_mode); 1376 drv->op_mode = NULL; 1377 1378 #ifdef CONFIG_IWLWIFI_DEBUGFS 1379 debugfs_remove_recursive(drv->dbgfs_op_mode); 1380 drv->dbgfs_op_mode = NULL; 1381 #endif 1382 } 1383 } 1384 1385 /* 1386 * iwl_req_fw_callback - callback when firmware was loaded 1387 * 1388 * If loaded successfully, copies the firmware into buffers 1389 * for the card to fetch (via DMA). 1390 */ 1391 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1392 { 1393 struct iwl_drv *drv = context; 1394 struct iwl_fw *fw = &drv->fw; 1395 const struct iwl_ucode_header *ucode; 1396 struct iwlwifi_opmode_table *op; 1397 int err; 1398 struct iwl_firmware_pieces *pieces; 1399 const unsigned int api_max = drv->trans->cfg->ucode_api_max; 1400 const unsigned int api_min = drv->trans->cfg->ucode_api_min; 1401 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1402 u32 api_ver; 1403 int i; 1404 bool load_module = false; 1405 bool usniffer_images = false; 1406 bool failure = true; 1407 1408 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1409 fw->ucode_capa.standard_phy_calibration_size = 1410 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1411 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1412 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX; 1413 /* dump all fw memory areas by default */ 1414 fw->dbg.dump_mask = 0xffffffff; 1415 1416 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1417 if (!pieces) 1418 goto out_free_fw; 1419 1420 if (!ucode_raw) 1421 goto try_again; 1422 1423 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1424 drv->firmware_name, ucode_raw->size); 1425 1426 /* Make sure that we got at least the API version number */ 1427 if (ucode_raw->size < 4) { 1428 IWL_ERR(drv, "File size way too small!\n"); 1429 goto try_again; 1430 } 1431 1432 /* Data from ucode file: header followed by uCode images */ 1433 ucode = (const struct iwl_ucode_header *)ucode_raw->data; 1434 1435 if (ucode->ver) 1436 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1437 else 1438 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1439 &fw->ucode_capa, &usniffer_images); 1440 1441 if (err) 1442 goto try_again; 1443 1444 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1445 api_ver = drv->fw.ucode_ver; 1446 else 1447 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1448 1449 /* 1450 * api_ver should match the api version forming part of the 1451 * firmware filename ... but we don't check for that and only rely 1452 * on the API version read from firmware header from here on forward 1453 */ 1454 if (api_ver < api_min || api_ver > api_max) { 1455 IWL_ERR(drv, 1456 "Driver unable to support your firmware API. " 1457 "Driver supports v%u, firmware is v%u.\n", 1458 api_max, api_ver); 1459 goto try_again; 1460 } 1461 1462 /* 1463 * In mvm uCode there is no difference between data and instructions 1464 * sections. 1465 */ 1466 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, 1467 drv->trans->cfg)) 1468 goto try_again; 1469 1470 /* Allocate ucode buffers for card's bus-master loading ... */ 1471 1472 /* Runtime instructions and 2 copies of data: 1473 * 1) unmodified from disk 1474 * 2) backup cache for save/restore during power-downs 1475 */ 1476 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1477 if (iwl_alloc_ucode(drv, pieces, i)) 1478 goto out_free_fw; 1479 1480 if (pieces->dbg_dest_tlv_init) { 1481 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) + 1482 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1483 drv->fw.dbg.n_dest_reg; 1484 1485 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL); 1486 1487 if (!drv->fw.dbg.dest_tlv) 1488 goto out_free_fw; 1489 1490 if (*pieces->dbg_dest_ver == 0) { 1491 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1, 1492 dbg_dest_size); 1493 } else { 1494 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv = 1495 drv->fw.dbg.dest_tlv; 1496 1497 dest_tlv->version = pieces->dbg_dest_tlv->version; 1498 dest_tlv->monitor_mode = 1499 pieces->dbg_dest_tlv->monitor_mode; 1500 dest_tlv->size_power = 1501 pieces->dbg_dest_tlv->size_power; 1502 dest_tlv->wrap_count = 1503 pieces->dbg_dest_tlv->wrap_count; 1504 dest_tlv->write_ptr_reg = 1505 pieces->dbg_dest_tlv->write_ptr_reg; 1506 dest_tlv->base_shift = 1507 pieces->dbg_dest_tlv->base_shift; 1508 memcpy(dest_tlv->reg_ops, 1509 pieces->dbg_dest_tlv->reg_ops, 1510 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1511 drv->fw.dbg.n_dest_reg); 1512 1513 /* In version 1 of the destination tlv, which is 1514 * relevant for internal buffer exclusively, 1515 * the base address is part of given with the length 1516 * of the buffer, and the size shift is give instead of 1517 * end shift. We now store these values in base_reg, 1518 * and end shift, and when dumping the data we'll 1519 * manipulate it for extracting both the length and 1520 * base address */ 1521 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg; 1522 dest_tlv->end_shift = 1523 pieces->dbg_dest_tlv->size_shift; 1524 } 1525 } 1526 1527 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) { 1528 if (pieces->dbg_conf_tlv[i]) { 1529 drv->fw.dbg.conf_tlv[i] = 1530 kmemdup(pieces->dbg_conf_tlv[i], 1531 pieces->dbg_conf_tlv_len[i], 1532 GFP_KERNEL); 1533 if (!drv->fw.dbg.conf_tlv[i]) 1534 goto out_free_fw; 1535 } 1536 } 1537 1538 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1539 1540 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1541 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1542 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1543 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1544 sizeof(struct iwl_fw_dbg_trigger_cmd); 1545 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1546 sizeof(struct iwl_fw_dbg_trigger_mlme); 1547 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1548 sizeof(struct iwl_fw_dbg_trigger_stats); 1549 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1550 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1551 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1552 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1553 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1554 sizeof(struct iwl_fw_dbg_trigger_time_event); 1555 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1556 sizeof(struct iwl_fw_dbg_trigger_ba); 1557 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1558 sizeof(struct iwl_fw_dbg_trigger_tdls); 1559 1560 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) { 1561 if (pieces->dbg_trigger_tlv[i]) { 1562 /* 1563 * If the trigger isn't long enough, WARN and exit. 1564 * Someone is trying to debug something and he won't 1565 * be able to catch the bug he is trying to chase. 1566 * We'd better be noisy to be sure he knows what's 1567 * going on. 1568 */ 1569 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1570 (trigger_tlv_sz[i] + 1571 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1572 goto out_free_fw; 1573 drv->fw.dbg.trigger_tlv_len[i] = 1574 pieces->dbg_trigger_tlv_len[i]; 1575 drv->fw.dbg.trigger_tlv[i] = 1576 kmemdup(pieces->dbg_trigger_tlv[i], 1577 drv->fw.dbg.trigger_tlv_len[i], 1578 GFP_KERNEL); 1579 if (!drv->fw.dbg.trigger_tlv[i]) 1580 goto out_free_fw; 1581 } 1582 } 1583 1584 /* Now that we can no longer fail, copy information */ 1585 1586 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv; 1587 pieces->dbg_mem_tlv = NULL; 1588 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv; 1589 1590 /* 1591 * The (size - 16) / 12 formula is based on the information recorded 1592 * for each event, which is of mode 1 (including timestamp) for all 1593 * new microcodes that include this information. 1594 */ 1595 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1596 if (pieces->init_evtlog_size) 1597 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1598 else 1599 fw->init_evtlog_size = 1600 drv->trans->trans_cfg->base_params->max_event_log_size; 1601 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1602 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1603 if (pieces->inst_evtlog_size) 1604 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1605 else 1606 fw->inst_evtlog_size = 1607 drv->trans->trans_cfg->base_params->max_event_log_size; 1608 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1609 1610 /* 1611 * figure out the offset of chain noise reset and gain commands 1612 * base on the size of standard phy calibration commands table size 1613 */ 1614 if (fw->ucode_capa.standard_phy_calibration_size > 1615 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1616 fw->ucode_capa.standard_phy_calibration_size = 1617 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1618 1619 /* We have our copies now, allow OS release its copies */ 1620 release_firmware(ucode_raw); 1621 1622 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans); 1623 1624 mutex_lock(&iwlwifi_opmode_table_mtx); 1625 switch (fw->type) { 1626 case IWL_FW_DVM: 1627 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1628 break; 1629 default: 1630 WARN(1, "Invalid fw type %d\n", fw->type); 1631 fallthrough; 1632 case IWL_FW_MVM: 1633 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1634 break; 1635 } 1636 1637 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1638 drv->fw.fw_version, op->name); 1639 1640 /* add this device to the list of devices using this op_mode */ 1641 list_add_tail(&drv->list, &op->drv); 1642 1643 if (op->ops) { 1644 drv->op_mode = _iwl_op_mode_start(drv, op); 1645 1646 if (!drv->op_mode) { 1647 mutex_unlock(&iwlwifi_opmode_table_mtx); 1648 goto out_unbind; 1649 } 1650 } else { 1651 load_module = true; 1652 } 1653 mutex_unlock(&iwlwifi_opmode_table_mtx); 1654 1655 /* 1656 * Complete the firmware request last so that 1657 * a driver unbind (stop) doesn't run while we 1658 * are doing the start() above. 1659 */ 1660 complete(&drv->request_firmware_complete); 1661 1662 /* 1663 * Load the module last so we don't block anything 1664 * else from proceeding if the module fails to load 1665 * or hangs loading. 1666 */ 1667 if (load_module) 1668 request_module("%s", op->name); 1669 failure = false; 1670 goto free; 1671 1672 try_again: 1673 /* try next, if any */ 1674 release_firmware(ucode_raw); 1675 if (iwl_request_firmware(drv, false)) 1676 goto out_unbind; 1677 goto free; 1678 1679 out_free_fw: 1680 release_firmware(ucode_raw); 1681 out_unbind: 1682 complete(&drv->request_firmware_complete); 1683 device_release_driver(drv->trans->dev); 1684 /* drv has just been freed by the release */ 1685 failure = false; 1686 free: 1687 if (failure) 1688 iwl_dealloc_ucode(drv); 1689 1690 if (pieces) { 1691 for (i = 0; i < ARRAY_SIZE(pieces->img); i++) 1692 kfree(pieces->img[i].sec); 1693 kfree(pieces->dbg_mem_tlv); 1694 kfree(pieces); 1695 } 1696 } 1697 1698 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans) 1699 { 1700 struct iwl_drv *drv; 1701 int ret; 1702 1703 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1704 if (!drv) { 1705 ret = -ENOMEM; 1706 goto err; 1707 } 1708 1709 drv->trans = trans; 1710 drv->dev = trans->dev; 1711 1712 init_completion(&drv->request_firmware_complete); 1713 INIT_LIST_HEAD(&drv->list); 1714 1715 #ifdef CONFIG_IWLWIFI_DEBUGFS 1716 /* Create the device debugfs entries. */ 1717 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1718 iwl_dbgfs_root); 1719 1720 /* Create transport layer debugfs dir */ 1721 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1722 #endif 1723 1724 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans); 1725 1726 ret = iwl_request_firmware(drv, true); 1727 if (ret) { 1728 IWL_ERR(trans, "Couldn't request the fw\n"); 1729 goto err_fw; 1730 } 1731 1732 return drv; 1733 1734 err_fw: 1735 #ifdef CONFIG_IWLWIFI_DEBUGFS 1736 debugfs_remove_recursive(drv->dbgfs_drv); 1737 iwl_dbg_tlv_free(drv->trans); 1738 #endif 1739 kfree(drv); 1740 err: 1741 return ERR_PTR(ret); 1742 } 1743 1744 void iwl_drv_stop(struct iwl_drv *drv) 1745 { 1746 wait_for_completion(&drv->request_firmware_complete); 1747 1748 _iwl_op_mode_stop(drv); 1749 1750 iwl_dealloc_ucode(drv); 1751 1752 mutex_lock(&iwlwifi_opmode_table_mtx); 1753 /* 1754 * List is empty (this item wasn't added) 1755 * when firmware loading failed -- in that 1756 * case we can't remove it from any list. 1757 */ 1758 if (!list_empty(&drv->list)) 1759 list_del(&drv->list); 1760 mutex_unlock(&iwlwifi_opmode_table_mtx); 1761 1762 #ifdef CONFIG_IWLWIFI_DEBUGFS 1763 drv->trans->ops->debugfs_cleanup(drv->trans); 1764 1765 debugfs_remove_recursive(drv->dbgfs_drv); 1766 #endif 1767 1768 iwl_dbg_tlv_free(drv->trans); 1769 1770 kfree(drv); 1771 } 1772 1773 #define ENABLE_INI (IWL_DBG_TLV_MAX_PRESET + 1) 1774 1775 /* shared module parameters */ 1776 struct iwl_mod_params iwlwifi_mod_params = { 1777 .fw_restart = true, 1778 .bt_coex_active = true, 1779 .power_level = IWL_POWER_INDEX_1, 1780 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, 1781 .enable_ini = ENABLE_INI, 1782 /* the rest are 0 by default */ 1783 }; 1784 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1785 1786 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1787 { 1788 int i; 1789 struct iwl_drv *drv; 1790 struct iwlwifi_opmode_table *op; 1791 1792 mutex_lock(&iwlwifi_opmode_table_mtx); 1793 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1794 op = &iwlwifi_opmode_table[i]; 1795 if (strcmp(op->name, name)) 1796 continue; 1797 op->ops = ops; 1798 /* TODO: need to handle exceptional case */ 1799 list_for_each_entry(drv, &op->drv, list) 1800 drv->op_mode = _iwl_op_mode_start(drv, op); 1801 1802 mutex_unlock(&iwlwifi_opmode_table_mtx); 1803 return 0; 1804 } 1805 mutex_unlock(&iwlwifi_opmode_table_mtx); 1806 return -EIO; 1807 } 1808 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1809 1810 void iwl_opmode_deregister(const char *name) 1811 { 1812 int i; 1813 struct iwl_drv *drv; 1814 1815 mutex_lock(&iwlwifi_opmode_table_mtx); 1816 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1817 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1818 continue; 1819 iwlwifi_opmode_table[i].ops = NULL; 1820 1821 /* call the stop routine for all devices */ 1822 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1823 _iwl_op_mode_stop(drv); 1824 1825 mutex_unlock(&iwlwifi_opmode_table_mtx); 1826 return; 1827 } 1828 mutex_unlock(&iwlwifi_opmode_table_mtx); 1829 } 1830 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1831 1832 static int __init iwl_drv_init(void) 1833 { 1834 int i, err; 1835 1836 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1837 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1838 1839 pr_info(DRV_DESCRIPTION "\n"); 1840 1841 #ifdef CONFIG_IWLWIFI_DEBUGFS 1842 /* Create the root of iwlwifi debugfs subsystem. */ 1843 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1844 #endif 1845 1846 err = iwl_pci_register_driver(); 1847 if (err) 1848 goto cleanup_debugfs; 1849 1850 return 0; 1851 1852 cleanup_debugfs: 1853 #ifdef CONFIG_IWLWIFI_DEBUGFS 1854 debugfs_remove_recursive(iwl_dbgfs_root); 1855 #endif 1856 return err; 1857 } 1858 module_init(iwl_drv_init); 1859 1860 static void __exit iwl_drv_exit(void) 1861 { 1862 iwl_pci_unregister_driver(); 1863 1864 #ifdef CONFIG_IWLWIFI_DEBUGFS 1865 debugfs_remove_recursive(iwl_dbgfs_root); 1866 #endif 1867 } 1868 module_exit(iwl_drv_exit); 1869 1870 #ifdef CONFIG_IWLWIFI_DEBUG 1871 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644); 1872 MODULE_PARM_DESC(debug, "debug output mask"); 1873 #endif 1874 1875 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444); 1876 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1877 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444); 1878 MODULE_PARM_DESC(11n_disable, 1879 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1880 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444); 1881 MODULE_PARM_DESC(amsdu_size, 1882 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, " 1883 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)"); 1884 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444); 1885 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1886 1887 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444); 1888 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1889 1890 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644); 1891 MODULE_PARM_DESC(uapsd_disable, 1892 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); 1893 1894 static int enable_ini_set(const char *arg, const struct kernel_param *kp) 1895 { 1896 int ret = 0; 1897 bool res; 1898 __u32 new_enable_ini; 1899 1900 /* in case the argument type is a number */ 1901 ret = kstrtou32(arg, 0, &new_enable_ini); 1902 if (!ret) { 1903 if (new_enable_ini > ENABLE_INI) { 1904 pr_err("enable_ini cannot be %d, in range 0-16\n", new_enable_ini); 1905 return -EINVAL; 1906 } 1907 goto out; 1908 } 1909 1910 /* in case the argument type is boolean */ 1911 ret = kstrtobool(arg, &res); 1912 if (ret) 1913 return ret; 1914 new_enable_ini = (res ? ENABLE_INI : 0); 1915 1916 out: 1917 iwlwifi_mod_params.enable_ini = new_enable_ini; 1918 return 0; 1919 } 1920 1921 static const struct kernel_param_ops enable_ini_ops = { 1922 .set = enable_ini_set 1923 }; 1924 1925 module_param_cb(enable_ini, &enable_ini_ops, &iwlwifi_mod_params.enable_ini, 0644); 1926 MODULE_PARM_DESC(enable_ini, 1927 "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined," 1928 "Debug INI TLV FW debug infrastructure (default: 16)"); 1929 1930 /* 1931 * set bt_coex_active to true, uCode will do kill/defer 1932 * every time the priority line is asserted (BT is sending signals on the 1933 * priority line in the PCIx). 1934 * set bt_coex_active to false, uCode will ignore the BT activity and 1935 * perform the normal operation 1936 * 1937 * User might experience transmit issue on some platform due to WiFi/BT 1938 * co-exist problem. The possible behaviors are: 1939 * Able to scan and finding all the available AP 1940 * Not able to associate with any AP 1941 * On those platforms, WiFi communication can be restored by set 1942 * "bt_coex_active" module parameter to "false" 1943 * 1944 * default: bt_coex_active = true (BT_COEX_ENABLE) 1945 */ 1946 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1947 bool, 0444); 1948 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1949 1950 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444); 1951 MODULE_PARM_DESC(led_mode, "0=system default, " 1952 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1953 1954 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444); 1955 MODULE_PARM_DESC(power_save, 1956 "enable WiFi power management (default: disable)"); 1957 1958 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444); 1959 MODULE_PARM_DESC(power_level, 1960 "default power save level (range from 1 - 5, default: 1)"); 1961 1962 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444); 1963 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)"); 1964 1965 module_param_named(remove_when_gone, 1966 iwlwifi_mod_params.remove_when_gone, bool, 1967 0444); 1968 MODULE_PARM_DESC(remove_when_gone, 1969 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)"); 1970 1971 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool, 1972 S_IRUGO); 1973 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)"); 1974