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 kfree(drv->trans->dbg.pc_data); 131 132 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 133 iwl_free_fw_img(drv, drv->fw.img + i); 134 135 /* clear the data for the aborted load case */ 136 memset(&drv->fw, 0, sizeof(drv->fw)); 137 } 138 139 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, 140 struct fw_sec *sec) 141 { 142 void *data; 143 144 desc->data = NULL; 145 146 if (!sec || !sec->size) 147 return -EINVAL; 148 149 data = vmalloc(sec->size); 150 if (!data) 151 return -ENOMEM; 152 153 desc->len = sec->size; 154 desc->offset = sec->offset; 155 memcpy(data, sec->data, desc->len); 156 desc->data = data; 157 158 return 0; 159 } 160 161 static void iwl_req_fw_callback(const struct firmware *ucode_raw, 162 void *context); 163 164 static int iwl_request_firmware(struct iwl_drv *drv, bool first) 165 { 166 const struct iwl_cfg *cfg = drv->trans->cfg; 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 else 180 drv->fw_index--; 181 182 if (drv->fw_index < cfg->ucode_api_min) { 183 IWL_ERR(drv, "no suitable firmware found!\n"); 184 185 if (cfg->ucode_api_min == cfg->ucode_api_max) { 186 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre, 187 cfg->ucode_api_max); 188 } else { 189 IWL_ERR(drv, "minimum version required: %s%d\n", 190 cfg->fw_name_pre, cfg->ucode_api_min); 191 IWL_ERR(drv, "maximum version supported: %s%d\n", 192 cfg->fw_name_pre, cfg->ucode_api_max); 193 } 194 195 IWL_ERR(drv, 196 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n"); 197 return -ENOENT; 198 } 199 200 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%d.ucode", 201 cfg->fw_name_pre, drv->fw_index); 202 203 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n", 204 drv->firmware_name); 205 206 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 207 drv->trans->dev, 208 GFP_KERNEL, drv, iwl_req_fw_callback); 209 } 210 211 struct fw_img_parsing { 212 struct fw_sec *sec; 213 int sec_counter; 214 }; 215 216 /* 217 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 218 */ 219 struct fw_sec_parsing { 220 __le32 offset; 221 const u8 data[]; 222 } __packed; 223 224 /** 225 * struct iwl_tlv_calib_data - parse the default calib data from TLV 226 * 227 * @ucode_type: the uCode to which the following default calib relates. 228 * @calib: default calibrations. 229 */ 230 struct iwl_tlv_calib_data { 231 __le32 ucode_type; 232 struct iwl_tlv_calib_ctrl calib; 233 } __packed; 234 235 struct iwl_firmware_pieces { 236 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 237 238 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 239 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 240 241 /* FW debug data parsed for driver usage */ 242 bool dbg_dest_tlv_init; 243 const u8 *dbg_dest_ver; 244 union { 245 const struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 246 const struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1; 247 }; 248 const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 249 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 250 const struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 251 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 252 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv; 253 size_t n_mem_tlv; 254 }; 255 256 /* 257 * These functions are just to extract uCode section data from the pieces 258 * structure. 259 */ 260 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 261 enum iwl_ucode_type type, 262 int sec) 263 { 264 return &pieces->img[type].sec[sec]; 265 } 266 267 static void alloc_sec_data(struct iwl_firmware_pieces *pieces, 268 enum iwl_ucode_type type, 269 int sec) 270 { 271 struct fw_img_parsing *img = &pieces->img[type]; 272 struct fw_sec *sec_memory; 273 int size = sec + 1; 274 size_t alloc_size = sizeof(*img->sec) * size; 275 276 if (img->sec && img->sec_counter >= size) 277 return; 278 279 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL); 280 if (!sec_memory) 281 return; 282 283 img->sec = sec_memory; 284 img->sec_counter = size; 285 } 286 287 static void set_sec_data(struct iwl_firmware_pieces *pieces, 288 enum iwl_ucode_type type, 289 int sec, 290 const void *data) 291 { 292 alloc_sec_data(pieces, type, sec); 293 294 pieces->img[type].sec[sec].data = data; 295 } 296 297 static void set_sec_size(struct iwl_firmware_pieces *pieces, 298 enum iwl_ucode_type type, 299 int sec, 300 size_t size) 301 { 302 alloc_sec_data(pieces, type, sec); 303 304 pieces->img[type].sec[sec].size = size; 305 } 306 307 static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 308 enum iwl_ucode_type type, 309 int sec) 310 { 311 return pieces->img[type].sec[sec].size; 312 } 313 314 static void set_sec_offset(struct iwl_firmware_pieces *pieces, 315 enum iwl_ucode_type type, 316 int sec, 317 u32 offset) 318 { 319 alloc_sec_data(pieces, type, sec); 320 321 pieces->img[type].sec[sec].offset = offset; 322 } 323 324 /* 325 * Gets uCode section from tlv. 326 */ 327 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 328 const void *data, enum iwl_ucode_type type, 329 int size) 330 { 331 struct fw_img_parsing *img; 332 struct fw_sec *sec; 333 const struct fw_sec_parsing *sec_parse; 334 size_t alloc_size; 335 336 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 337 return -1; 338 339 sec_parse = (const struct fw_sec_parsing *)data; 340 341 img = &pieces->img[type]; 342 343 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1); 344 sec = krealloc(img->sec, alloc_size, GFP_KERNEL); 345 if (!sec) 346 return -ENOMEM; 347 img->sec = sec; 348 349 sec = &img->sec[img->sec_counter]; 350 351 sec->offset = le32_to_cpu(sec_parse->offset); 352 sec->data = sec_parse->data; 353 sec->size = size - sizeof(sec_parse->offset); 354 355 ++img->sec_counter; 356 357 return 0; 358 } 359 360 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 361 { 362 const struct iwl_tlv_calib_data *def_calib = 363 (const struct iwl_tlv_calib_data *)data; 364 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 365 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 366 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 367 ucode_type); 368 return -EINVAL; 369 } 370 drv->fw.default_calib[ucode_type].flow_trigger = 371 def_calib->calib.flow_trigger; 372 drv->fw.default_calib[ucode_type].event_trigger = 373 def_calib->calib.event_trigger; 374 375 return 0; 376 } 377 378 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 379 struct iwl_ucode_capabilities *capa) 380 { 381 const struct iwl_ucode_api *ucode_api = (const void *)data; 382 u32 api_index = le32_to_cpu(ucode_api->api_index); 383 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 384 int i; 385 386 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 387 IWL_WARN(drv, 388 "api flags index %d larger than supported by driver\n", 389 api_index); 390 return; 391 } 392 393 for (i = 0; i < 32; i++) { 394 if (api_flags & BIT(i)) 395 __set_bit(i + 32 * api_index, capa->_api); 396 } 397 } 398 399 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 400 struct iwl_ucode_capabilities *capa) 401 { 402 const struct iwl_ucode_capa *ucode_capa = (const void *)data; 403 u32 api_index = le32_to_cpu(ucode_capa->api_index); 404 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 405 int i; 406 407 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 408 IWL_WARN(drv, 409 "capa flags index %d larger than supported by driver\n", 410 api_index); 411 return; 412 } 413 414 for (i = 0; i < 32; i++) { 415 if (api_flags & BIT(i)) 416 __set_bit(i + 32 * api_index, capa->_capa); 417 } 418 } 419 420 static const char *iwl_reduced_fw_name(struct iwl_drv *drv) 421 { 422 const char *name = drv->firmware_name; 423 424 if (strncmp(name, "iwlwifi-", 8) == 0) 425 name += 8; 426 427 return name; 428 } 429 430 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 431 const struct firmware *ucode_raw, 432 struct iwl_firmware_pieces *pieces) 433 { 434 const struct iwl_ucode_header *ucode = (const void *)ucode_raw->data; 435 u32 api_ver, hdr_size, build; 436 char buildstr[25]; 437 const u8 *src; 438 439 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 440 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 441 442 switch (api_ver) { 443 default: 444 hdr_size = 28; 445 if (ucode_raw->size < hdr_size) { 446 IWL_ERR(drv, "File size too small!\n"); 447 return -EINVAL; 448 } 449 build = le32_to_cpu(ucode->u.v2.build); 450 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 451 le32_to_cpu(ucode->u.v2.inst_size)); 452 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 453 le32_to_cpu(ucode->u.v2.data_size)); 454 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 455 le32_to_cpu(ucode->u.v2.init_size)); 456 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 457 le32_to_cpu(ucode->u.v2.init_data_size)); 458 src = ucode->u.v2.data; 459 break; 460 case 0: 461 case 1: 462 case 2: 463 hdr_size = 24; 464 if (ucode_raw->size < hdr_size) { 465 IWL_ERR(drv, "File size too small!\n"); 466 return -EINVAL; 467 } 468 build = 0; 469 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 470 le32_to_cpu(ucode->u.v1.inst_size)); 471 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 472 le32_to_cpu(ucode->u.v1.data_size)); 473 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 474 le32_to_cpu(ucode->u.v1.init_size)); 475 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 476 le32_to_cpu(ucode->u.v1.init_data_size)); 477 src = ucode->u.v1.data; 478 break; 479 } 480 481 if (build) 482 sprintf(buildstr, " build %u", build); 483 else 484 buildstr[0] = '\0'; 485 486 snprintf(drv->fw.fw_version, 487 sizeof(drv->fw.fw_version), 488 "%u.%u.%u.%u%s %s", 489 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 490 IWL_UCODE_MINOR(drv->fw.ucode_ver), 491 IWL_UCODE_API(drv->fw.ucode_ver), 492 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 493 buildstr, iwl_reduced_fw_name(drv)); 494 495 /* Verify size of file vs. image size info in file's header */ 496 497 if (ucode_raw->size != hdr_size + 498 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 499 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 500 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 501 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 502 503 IWL_ERR(drv, 504 "uCode file size %d does not match expected size\n", 505 (int)ucode_raw->size); 506 return -EINVAL; 507 } 508 509 510 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 511 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 512 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 513 IWLAGN_RTC_INST_LOWER_BOUND); 514 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 515 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 516 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 517 IWLAGN_RTC_DATA_LOWER_BOUND); 518 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 519 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 520 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 521 IWLAGN_RTC_INST_LOWER_BOUND); 522 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 523 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 524 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 525 IWLAGN_RTC_DATA_LOWER_BOUND); 526 return 0; 527 } 528 529 static void iwl_drv_set_dump_exclude(struct iwl_drv *drv, 530 enum iwl_ucode_tlv_type tlv_type, 531 const void *tlv_data, u32 tlv_len) 532 { 533 const struct iwl_fw_dump_exclude *fw = tlv_data; 534 struct iwl_dump_exclude *excl; 535 536 if (tlv_len < sizeof(*fw)) 537 return; 538 539 if (tlv_type == IWL_UCODE_TLV_SEC_TABLE_ADDR) { 540 excl = &drv->fw.dump_excl[0]; 541 542 /* second time we find this, it's for WoWLAN */ 543 if (excl->addr) 544 excl = &drv->fw.dump_excl_wowlan[0]; 545 } else if (fw_has_capa(&drv->fw.ucode_capa, 546 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG)) { 547 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is regular image */ 548 excl = &drv->fw.dump_excl[0]; 549 } else { 550 /* IWL_UCODE_TLV_D3_KEK_KCK_ADDR is WoWLAN image */ 551 excl = &drv->fw.dump_excl_wowlan[0]; 552 } 553 554 if (excl->addr) 555 excl++; 556 557 if (excl->addr) { 558 IWL_DEBUG_FW_INFO(drv, "found too many excludes in fw file\n"); 559 return; 560 } 561 562 excl->addr = le32_to_cpu(fw->addr) & ~FW_ADDR_CACHE_CONTROL; 563 excl->size = le32_to_cpu(fw->size); 564 } 565 566 static void iwl_parse_dbg_tlv_assert_tables(struct iwl_drv *drv, 567 const struct iwl_ucode_tlv *tlv) 568 { 569 const struct iwl_fw_ini_region_tlv *region; 570 u32 length = le32_to_cpu(tlv->length); 571 u32 addr; 572 573 if (length < offsetof(typeof(*region), special_mem) + 574 sizeof(region->special_mem)) 575 return; 576 577 region = (const void *)tlv->data; 578 addr = le32_to_cpu(region->special_mem.base_addr); 579 addr += le32_to_cpu(region->special_mem.offset); 580 addr &= ~FW_ADDR_CACHE_CONTROL; 581 582 if (region->type != IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY) 583 return; 584 585 switch (region->sub_type) { 586 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_UMAC_ERROR_TABLE: 587 drv->trans->dbg.umac_error_event_table = addr; 588 drv->trans->dbg.error_event_table_tlv_status |= 589 IWL_ERROR_EVENT_TABLE_UMAC; 590 break; 591 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_1_ERROR_TABLE: 592 drv->trans->dbg.lmac_error_event_table[0] = addr; 593 drv->trans->dbg.error_event_table_tlv_status |= 594 IWL_ERROR_EVENT_TABLE_LMAC1; 595 break; 596 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_LMAC_2_ERROR_TABLE: 597 drv->trans->dbg.lmac_error_event_table[1] = addr; 598 drv->trans->dbg.error_event_table_tlv_status |= 599 IWL_ERROR_EVENT_TABLE_LMAC2; 600 break; 601 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_1_ERROR_TABLE: 602 drv->trans->dbg.tcm_error_event_table[0] = addr; 603 drv->trans->dbg.error_event_table_tlv_status |= 604 IWL_ERROR_EVENT_TABLE_TCM1; 605 break; 606 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_TCM_2_ERROR_TABLE: 607 drv->trans->dbg.tcm_error_event_table[1] = addr; 608 drv->trans->dbg.error_event_table_tlv_status |= 609 IWL_ERROR_EVENT_TABLE_TCM2; 610 break; 611 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_1_ERROR_TABLE: 612 drv->trans->dbg.rcm_error_event_table[0] = addr; 613 drv->trans->dbg.error_event_table_tlv_status |= 614 IWL_ERROR_EVENT_TABLE_RCM1; 615 break; 616 case IWL_FW_INI_REGION_DEVICE_MEMORY_SUBTYPE_RCM_2_ERROR_TABLE: 617 drv->trans->dbg.rcm_error_event_table[1] = addr; 618 drv->trans->dbg.error_event_table_tlv_status |= 619 IWL_ERROR_EVENT_TABLE_RCM2; 620 break; 621 default: 622 break; 623 } 624 } 625 626 static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 627 const struct firmware *ucode_raw, 628 struct iwl_firmware_pieces *pieces, 629 struct iwl_ucode_capabilities *capa, 630 bool *usniffer_images) 631 { 632 const struct iwl_tlv_ucode_header *ucode = (const void *)ucode_raw->data; 633 const struct iwl_ucode_tlv *tlv; 634 size_t len = ucode_raw->size; 635 const u8 *data; 636 u32 tlv_len; 637 u32 usniffer_img; 638 enum iwl_ucode_tlv_type tlv_type; 639 const u8 *tlv_data; 640 char buildstr[25]; 641 u32 build, paging_mem_size; 642 int num_of_cpus; 643 bool usniffer_req = false; 644 645 if (len < sizeof(*ucode)) { 646 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 647 return -EINVAL; 648 } 649 650 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 651 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 652 le32_to_cpu(ucode->magic)); 653 return -EINVAL; 654 } 655 656 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 657 memcpy(drv->fw.human_readable, ucode->human_readable, 658 sizeof(drv->fw.human_readable)); 659 build = le32_to_cpu(ucode->build); 660 661 if (build) 662 sprintf(buildstr, " build %u", build); 663 else 664 buildstr[0] = '\0'; 665 666 snprintf(drv->fw.fw_version, 667 sizeof(drv->fw.fw_version), 668 "%u.%u.%u.%u%s %s", 669 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 670 IWL_UCODE_MINOR(drv->fw.ucode_ver), 671 IWL_UCODE_API(drv->fw.ucode_ver), 672 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 673 buildstr, iwl_reduced_fw_name(drv)); 674 675 data = ucode->data; 676 677 len -= sizeof(*ucode); 678 679 while (len >= sizeof(*tlv)) { 680 len -= sizeof(*tlv); 681 682 tlv = (const void *)data; 683 tlv_len = le32_to_cpu(tlv->length); 684 tlv_type = le32_to_cpu(tlv->type); 685 tlv_data = tlv->data; 686 687 if (len < tlv_len) { 688 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 689 len, tlv_len); 690 return -EINVAL; 691 } 692 len -= ALIGN(tlv_len, 4); 693 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 694 695 switch (tlv_type) { 696 case IWL_UCODE_TLV_INST: 697 set_sec_data(pieces, IWL_UCODE_REGULAR, 698 IWL_UCODE_SECTION_INST, tlv_data); 699 set_sec_size(pieces, IWL_UCODE_REGULAR, 700 IWL_UCODE_SECTION_INST, tlv_len); 701 set_sec_offset(pieces, IWL_UCODE_REGULAR, 702 IWL_UCODE_SECTION_INST, 703 IWLAGN_RTC_INST_LOWER_BOUND); 704 break; 705 case IWL_UCODE_TLV_DATA: 706 set_sec_data(pieces, IWL_UCODE_REGULAR, 707 IWL_UCODE_SECTION_DATA, tlv_data); 708 set_sec_size(pieces, IWL_UCODE_REGULAR, 709 IWL_UCODE_SECTION_DATA, tlv_len); 710 set_sec_offset(pieces, IWL_UCODE_REGULAR, 711 IWL_UCODE_SECTION_DATA, 712 IWLAGN_RTC_DATA_LOWER_BOUND); 713 break; 714 case IWL_UCODE_TLV_INIT: 715 set_sec_data(pieces, IWL_UCODE_INIT, 716 IWL_UCODE_SECTION_INST, tlv_data); 717 set_sec_size(pieces, IWL_UCODE_INIT, 718 IWL_UCODE_SECTION_INST, tlv_len); 719 set_sec_offset(pieces, IWL_UCODE_INIT, 720 IWL_UCODE_SECTION_INST, 721 IWLAGN_RTC_INST_LOWER_BOUND); 722 break; 723 case IWL_UCODE_TLV_INIT_DATA: 724 set_sec_data(pieces, IWL_UCODE_INIT, 725 IWL_UCODE_SECTION_DATA, tlv_data); 726 set_sec_size(pieces, IWL_UCODE_INIT, 727 IWL_UCODE_SECTION_DATA, tlv_len); 728 set_sec_offset(pieces, IWL_UCODE_INIT, 729 IWL_UCODE_SECTION_DATA, 730 IWLAGN_RTC_DATA_LOWER_BOUND); 731 break; 732 case IWL_UCODE_TLV_BOOT: 733 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 734 break; 735 case IWL_UCODE_TLV_PROBE_MAX_LEN: 736 if (tlv_len != sizeof(u32)) 737 goto invalid_tlv_len; 738 capa->max_probe_length = 739 le32_to_cpup((const __le32 *)tlv_data); 740 break; 741 case IWL_UCODE_TLV_PAN: 742 if (tlv_len) 743 goto invalid_tlv_len; 744 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 745 break; 746 case IWL_UCODE_TLV_FLAGS: 747 /* must be at least one u32 */ 748 if (tlv_len < sizeof(u32)) 749 goto invalid_tlv_len; 750 /* and a proper number of u32s */ 751 if (tlv_len % sizeof(u32)) 752 goto invalid_tlv_len; 753 /* 754 * This driver only reads the first u32 as 755 * right now no more features are defined, 756 * if that changes then either the driver 757 * will not work with the new firmware, or 758 * it'll not take advantage of new features. 759 */ 760 capa->flags = le32_to_cpup((const __le32 *)tlv_data); 761 break; 762 case IWL_UCODE_TLV_API_CHANGES_SET: 763 if (tlv_len != sizeof(struct iwl_ucode_api)) 764 goto invalid_tlv_len; 765 iwl_set_ucode_api_flags(drv, tlv_data, capa); 766 break; 767 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 768 if (tlv_len != sizeof(struct iwl_ucode_capa)) 769 goto invalid_tlv_len; 770 iwl_set_ucode_capabilities(drv, tlv_data, capa); 771 break; 772 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 773 if (tlv_len != sizeof(u32)) 774 goto invalid_tlv_len; 775 pieces->init_evtlog_ptr = 776 le32_to_cpup((const __le32 *)tlv_data); 777 break; 778 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 779 if (tlv_len != sizeof(u32)) 780 goto invalid_tlv_len; 781 pieces->init_evtlog_size = 782 le32_to_cpup((const __le32 *)tlv_data); 783 break; 784 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 785 if (tlv_len != sizeof(u32)) 786 goto invalid_tlv_len; 787 pieces->init_errlog_ptr = 788 le32_to_cpup((const __le32 *)tlv_data); 789 break; 790 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 791 if (tlv_len != sizeof(u32)) 792 goto invalid_tlv_len; 793 pieces->inst_evtlog_ptr = 794 le32_to_cpup((const __le32 *)tlv_data); 795 break; 796 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 797 if (tlv_len != sizeof(u32)) 798 goto invalid_tlv_len; 799 pieces->inst_evtlog_size = 800 le32_to_cpup((const __le32 *)tlv_data); 801 break; 802 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 803 if (tlv_len != sizeof(u32)) 804 goto invalid_tlv_len; 805 pieces->inst_errlog_ptr = 806 le32_to_cpup((const __le32 *)tlv_data); 807 break; 808 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 809 if (tlv_len) 810 goto invalid_tlv_len; 811 drv->fw.enhance_sensitivity_table = true; 812 break; 813 case IWL_UCODE_TLV_WOWLAN_INST: 814 set_sec_data(pieces, IWL_UCODE_WOWLAN, 815 IWL_UCODE_SECTION_INST, tlv_data); 816 set_sec_size(pieces, IWL_UCODE_WOWLAN, 817 IWL_UCODE_SECTION_INST, tlv_len); 818 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 819 IWL_UCODE_SECTION_INST, 820 IWLAGN_RTC_INST_LOWER_BOUND); 821 break; 822 case IWL_UCODE_TLV_WOWLAN_DATA: 823 set_sec_data(pieces, IWL_UCODE_WOWLAN, 824 IWL_UCODE_SECTION_DATA, tlv_data); 825 set_sec_size(pieces, IWL_UCODE_WOWLAN, 826 IWL_UCODE_SECTION_DATA, tlv_len); 827 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 828 IWL_UCODE_SECTION_DATA, 829 IWLAGN_RTC_DATA_LOWER_BOUND); 830 break; 831 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 832 if (tlv_len != sizeof(u32)) 833 goto invalid_tlv_len; 834 capa->standard_phy_calibration_size = 835 le32_to_cpup((const __le32 *)tlv_data); 836 break; 837 case IWL_UCODE_TLV_SEC_RT: 838 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 839 tlv_len); 840 drv->fw.type = IWL_FW_MVM; 841 break; 842 case IWL_UCODE_TLV_SEC_INIT: 843 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 844 tlv_len); 845 drv->fw.type = IWL_FW_MVM; 846 break; 847 case IWL_UCODE_TLV_SEC_WOWLAN: 848 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 849 tlv_len); 850 drv->fw.type = IWL_FW_MVM; 851 break; 852 case IWL_UCODE_TLV_DEF_CALIB: 853 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 854 goto invalid_tlv_len; 855 if (iwl_set_default_calib(drv, tlv_data)) 856 goto tlv_error; 857 break; 858 case IWL_UCODE_TLV_PHY_SKU: 859 if (tlv_len != sizeof(u32)) 860 goto invalid_tlv_len; 861 drv->fw.phy_config = le32_to_cpup((const __le32 *)tlv_data); 862 drv->fw.valid_tx_ant = (drv->fw.phy_config & 863 FW_PHY_CFG_TX_CHAIN) >> 864 FW_PHY_CFG_TX_CHAIN_POS; 865 drv->fw.valid_rx_ant = (drv->fw.phy_config & 866 FW_PHY_CFG_RX_CHAIN) >> 867 FW_PHY_CFG_RX_CHAIN_POS; 868 break; 869 case IWL_UCODE_TLV_SECURE_SEC_RT: 870 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 871 tlv_len); 872 drv->fw.type = IWL_FW_MVM; 873 break; 874 case IWL_UCODE_TLV_SECURE_SEC_INIT: 875 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 876 tlv_len); 877 drv->fw.type = IWL_FW_MVM; 878 break; 879 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 880 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 881 tlv_len); 882 drv->fw.type = IWL_FW_MVM; 883 break; 884 case IWL_UCODE_TLV_NUM_OF_CPU: 885 if (tlv_len != sizeof(u32)) 886 goto invalid_tlv_len; 887 num_of_cpus = 888 le32_to_cpup((const __le32 *)tlv_data); 889 890 if (num_of_cpus == 2) { 891 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 892 true; 893 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 894 true; 895 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 896 true; 897 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 898 IWL_ERR(drv, "Driver support up to 2 CPUs\n"); 899 return -EINVAL; 900 } 901 break; 902 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 903 if (tlv_len != sizeof(u32)) 904 goto invalid_tlv_len; 905 capa->n_scan_channels = 906 le32_to_cpup((const __le32 *)tlv_data); 907 break; 908 case IWL_UCODE_TLV_FW_VERSION: { 909 const __le32 *ptr = (const void *)tlv_data; 910 u32 major, minor; 911 u8 local_comp; 912 913 if (tlv_len != sizeof(u32) * 3) 914 goto invalid_tlv_len; 915 916 major = le32_to_cpup(ptr++); 917 minor = le32_to_cpup(ptr++); 918 local_comp = le32_to_cpup(ptr); 919 920 if (major >= 35) 921 snprintf(drv->fw.fw_version, 922 sizeof(drv->fw.fw_version), 923 "%u.%08x.%u %s", major, minor, 924 local_comp, iwl_reduced_fw_name(drv)); 925 else 926 snprintf(drv->fw.fw_version, 927 sizeof(drv->fw.fw_version), 928 "%u.%u.%u %s", major, minor, 929 local_comp, iwl_reduced_fw_name(drv)); 930 break; 931 } 932 case IWL_UCODE_TLV_FW_DBG_DEST: { 933 const struct iwl_fw_dbg_dest_tlv *dest = NULL; 934 const struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL; 935 u8 mon_mode; 936 937 pieces->dbg_dest_ver = (const u8 *)tlv_data; 938 if (*pieces->dbg_dest_ver == 1) { 939 dest = (const void *)tlv_data; 940 } else if (*pieces->dbg_dest_ver == 0) { 941 dest_v1 = (const void *)tlv_data; 942 } else { 943 IWL_ERR(drv, 944 "The version is %d, and it is invalid\n", 945 *pieces->dbg_dest_ver); 946 break; 947 } 948 949 if (pieces->dbg_dest_tlv_init) { 950 IWL_ERR(drv, 951 "dbg destination ignored, already exists\n"); 952 break; 953 } 954 955 pieces->dbg_dest_tlv_init = true; 956 957 if (dest_v1) { 958 pieces->dbg_dest_tlv_v1 = dest_v1; 959 mon_mode = dest_v1->monitor_mode; 960 } else { 961 pieces->dbg_dest_tlv = dest; 962 mon_mode = dest->monitor_mode; 963 } 964 965 IWL_INFO(drv, "Found debug destination: %s\n", 966 get_fw_dbg_mode_string(mon_mode)); 967 968 drv->fw.dbg.n_dest_reg = (dest_v1) ? 969 tlv_len - 970 offsetof(struct iwl_fw_dbg_dest_tlv_v1, 971 reg_ops) : 972 tlv_len - 973 offsetof(struct iwl_fw_dbg_dest_tlv, 974 reg_ops); 975 976 drv->fw.dbg.n_dest_reg /= 977 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]); 978 979 break; 980 } 981 case IWL_UCODE_TLV_FW_DBG_CONF: { 982 const struct iwl_fw_dbg_conf_tlv *conf = 983 (const void *)tlv_data; 984 985 if (!pieces->dbg_dest_tlv_init) { 986 IWL_ERR(drv, 987 "Ignore dbg config %d - no destination configured\n", 988 conf->id); 989 break; 990 } 991 992 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) { 993 IWL_ERR(drv, 994 "Skip unknown configuration: %d\n", 995 conf->id); 996 break; 997 } 998 999 if (pieces->dbg_conf_tlv[conf->id]) { 1000 IWL_ERR(drv, 1001 "Ignore duplicate dbg config %d\n", 1002 conf->id); 1003 break; 1004 } 1005 1006 if (conf->usniffer) 1007 usniffer_req = true; 1008 1009 IWL_INFO(drv, "Found debug configuration: %d\n", 1010 conf->id); 1011 1012 pieces->dbg_conf_tlv[conf->id] = conf; 1013 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 1014 break; 1015 } 1016 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 1017 const struct iwl_fw_dbg_trigger_tlv *trigger = 1018 (const void *)tlv_data; 1019 u32 trigger_id = le32_to_cpu(trigger->id); 1020 1021 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) { 1022 IWL_ERR(drv, 1023 "Skip unknown trigger: %u\n", 1024 trigger->id); 1025 break; 1026 } 1027 1028 if (pieces->dbg_trigger_tlv[trigger_id]) { 1029 IWL_ERR(drv, 1030 "Ignore duplicate dbg trigger %u\n", 1031 trigger->id); 1032 break; 1033 } 1034 1035 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 1036 1037 pieces->dbg_trigger_tlv[trigger_id] = trigger; 1038 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 1039 break; 1040 } 1041 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: { 1042 if (tlv_len != sizeof(u32)) { 1043 IWL_ERR(drv, 1044 "dbg lst mask size incorrect, skip\n"); 1045 break; 1046 } 1047 1048 drv->fw.dbg.dump_mask = 1049 le32_to_cpup((const __le32 *)tlv_data); 1050 break; 1051 } 1052 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 1053 *usniffer_images = true; 1054 iwl_store_ucode_sec(pieces, tlv_data, 1055 IWL_UCODE_REGULAR_USNIFFER, 1056 tlv_len); 1057 break; 1058 case IWL_UCODE_TLV_PAGING: 1059 if (tlv_len != sizeof(u32)) 1060 goto invalid_tlv_len; 1061 paging_mem_size = le32_to_cpup((const __le32 *)tlv_data); 1062 1063 IWL_DEBUG_FW(drv, 1064 "Paging: paging enabled (size = %u bytes)\n", 1065 paging_mem_size); 1066 1067 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 1068 IWL_ERR(drv, 1069 "Paging: driver supports up to %lu bytes for paging image\n", 1070 MAX_PAGING_IMAGE_SIZE); 1071 return -EINVAL; 1072 } 1073 1074 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1075 IWL_ERR(drv, 1076 "Paging: image isn't multiple %lu\n", 1077 FW_PAGING_SIZE); 1078 return -EINVAL; 1079 } 1080 1081 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1082 paging_mem_size; 1083 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1084 drv->fw.img[usniffer_img].paging_mem_size = 1085 paging_mem_size; 1086 break; 1087 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1088 /* ignored */ 1089 break; 1090 case IWL_UCODE_TLV_FW_MEM_SEG: { 1091 const struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = 1092 (const void *)tlv_data; 1093 size_t size; 1094 struct iwl_fw_dbg_mem_seg_tlv *n; 1095 1096 if (tlv_len != (sizeof(*dbg_mem))) 1097 goto invalid_tlv_len; 1098 1099 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", 1100 dbg_mem->data_type); 1101 1102 size = sizeof(*pieces->dbg_mem_tlv) * 1103 (pieces->n_mem_tlv + 1); 1104 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL); 1105 if (!n) 1106 return -ENOMEM; 1107 pieces->dbg_mem_tlv = n; 1108 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem; 1109 pieces->n_mem_tlv++; 1110 break; 1111 } 1112 case IWL_UCODE_TLV_IML: { 1113 drv->fw.iml_len = tlv_len; 1114 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1115 if (!drv->fw.iml) 1116 return -ENOMEM; 1117 break; 1118 } 1119 case IWL_UCODE_TLV_FW_RECOVERY_INFO: { 1120 const struct { 1121 __le32 buf_addr; 1122 __le32 buf_size; 1123 } *recov_info = (const void *)tlv_data; 1124 1125 if (tlv_len != sizeof(*recov_info)) 1126 goto invalid_tlv_len; 1127 capa->error_log_addr = 1128 le32_to_cpu(recov_info->buf_addr); 1129 capa->error_log_size = 1130 le32_to_cpu(recov_info->buf_size); 1131 } 1132 break; 1133 case IWL_UCODE_TLV_FW_FSEQ_VERSION: { 1134 const struct { 1135 u8 version[32]; 1136 u8 sha1[20]; 1137 } *fseq_ver = (const void *)tlv_data; 1138 1139 if (tlv_len != sizeof(*fseq_ver)) 1140 goto invalid_tlv_len; 1141 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n", 1142 fseq_ver->version); 1143 } 1144 break; 1145 case IWL_UCODE_TLV_FW_NUM_STATIONS: 1146 if (tlv_len != sizeof(u32)) 1147 goto invalid_tlv_len; 1148 if (le32_to_cpup((const __le32 *)tlv_data) > 1149 IWL_MVM_STATION_COUNT_MAX) { 1150 IWL_ERR(drv, 1151 "%d is an invalid number of station\n", 1152 le32_to_cpup((const __le32 *)tlv_data)); 1153 goto tlv_error; 1154 } 1155 capa->num_stations = 1156 le32_to_cpup((const __le32 *)tlv_data); 1157 break; 1158 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: { 1159 const struct iwl_umac_debug_addrs *dbg_ptrs = 1160 (const void *)tlv_data; 1161 1162 if (tlv_len != sizeof(*dbg_ptrs)) 1163 goto invalid_tlv_len; 1164 if (drv->trans->trans_cfg->device_family < 1165 IWL_DEVICE_FAMILY_22000) 1166 break; 1167 drv->trans->dbg.umac_error_event_table = 1168 le32_to_cpu(dbg_ptrs->error_info_addr) & 1169 ~FW_ADDR_CACHE_CONTROL; 1170 drv->trans->dbg.error_event_table_tlv_status |= 1171 IWL_ERROR_EVENT_TABLE_UMAC; 1172 break; 1173 } 1174 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: { 1175 const struct iwl_lmac_debug_addrs *dbg_ptrs = 1176 (const void *)tlv_data; 1177 1178 if (tlv_len != sizeof(*dbg_ptrs)) 1179 goto invalid_tlv_len; 1180 if (drv->trans->trans_cfg->device_family < 1181 IWL_DEVICE_FAMILY_22000) 1182 break; 1183 drv->trans->dbg.lmac_error_event_table[0] = 1184 le32_to_cpu(dbg_ptrs->error_event_table_ptr) & 1185 ~FW_ADDR_CACHE_CONTROL; 1186 drv->trans->dbg.error_event_table_tlv_status |= 1187 IWL_ERROR_EVENT_TABLE_LMAC1; 1188 break; 1189 } 1190 case IWL_UCODE_TLV_TYPE_REGIONS: 1191 iwl_parse_dbg_tlv_assert_tables(drv, tlv); 1192 fallthrough; 1193 case IWL_UCODE_TLV_TYPE_DEBUG_INFO: 1194 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION: 1195 case IWL_UCODE_TLV_TYPE_HCMD: 1196 case IWL_UCODE_TLV_TYPE_TRIGGERS: 1197 case IWL_UCODE_TLV_TYPE_CONF_SET: 1198 if (iwlwifi_mod_params.enable_ini) 1199 iwl_dbg_tlv_alloc(drv->trans, tlv, false); 1200 break; 1201 case IWL_UCODE_TLV_CMD_VERSIONS: 1202 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) { 1203 IWL_ERR(drv, 1204 "Invalid length for command versions: %u\n", 1205 tlv_len); 1206 tlv_len /= sizeof(struct iwl_fw_cmd_version); 1207 tlv_len *= sizeof(struct iwl_fw_cmd_version); 1208 } 1209 if (WARN_ON(capa->cmd_versions)) 1210 return -EINVAL; 1211 capa->cmd_versions = kmemdup(tlv_data, tlv_len, 1212 GFP_KERNEL); 1213 if (!capa->cmd_versions) 1214 return -ENOMEM; 1215 capa->n_cmd_versions = 1216 tlv_len / sizeof(struct iwl_fw_cmd_version); 1217 break; 1218 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION: 1219 if (drv->fw.phy_integration_ver) { 1220 IWL_ERR(drv, 1221 "phy integration str ignored, already exists\n"); 1222 break; 1223 } 1224 1225 drv->fw.phy_integration_ver = 1226 kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1227 if (!drv->fw.phy_integration_ver) 1228 return -ENOMEM; 1229 drv->fw.phy_integration_ver_len = tlv_len; 1230 break; 1231 case IWL_UCODE_TLV_SEC_TABLE_ADDR: 1232 case IWL_UCODE_TLV_D3_KEK_KCK_ADDR: 1233 iwl_drv_set_dump_exclude(drv, tlv_type, 1234 tlv_data, tlv_len); 1235 break; 1236 case IWL_UCODE_TLV_CURRENT_PC: 1237 if (tlv_len < sizeof(struct iwl_pc_data)) 1238 goto invalid_tlv_len; 1239 drv->trans->dbg.num_pc = 1240 tlv_len / sizeof(struct iwl_pc_data); 1241 drv->trans->dbg.pc_data = 1242 kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1243 break; 1244 default: 1245 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1246 break; 1247 } 1248 } 1249 1250 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 1251 usniffer_req && !*usniffer_images) { 1252 IWL_ERR(drv, 1253 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1254 return -EINVAL; 1255 } 1256 1257 if (len) { 1258 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1259 iwl_print_hex_dump(drv, IWL_DL_FW, data, len); 1260 return -EINVAL; 1261 } 1262 1263 return 0; 1264 1265 invalid_tlv_len: 1266 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1267 tlv_error: 1268 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1269 1270 return -EINVAL; 1271 } 1272 1273 static int iwl_alloc_ucode(struct iwl_drv *drv, 1274 struct iwl_firmware_pieces *pieces, 1275 enum iwl_ucode_type type) 1276 { 1277 int i; 1278 struct fw_desc *sec; 1279 1280 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL); 1281 if (!sec) 1282 return -ENOMEM; 1283 drv->fw.img[type].sec = sec; 1284 drv->fw.img[type].num_sec = pieces->img[type].sec_counter; 1285 1286 for (i = 0; i < pieces->img[type].sec_counter; i++) 1287 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i))) 1288 return -ENOMEM; 1289 1290 return 0; 1291 } 1292 1293 static int validate_sec_sizes(struct iwl_drv *drv, 1294 struct iwl_firmware_pieces *pieces, 1295 const struct iwl_cfg *cfg) 1296 { 1297 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n", 1298 get_sec_size(pieces, IWL_UCODE_REGULAR, 1299 IWL_UCODE_SECTION_INST)); 1300 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n", 1301 get_sec_size(pieces, IWL_UCODE_REGULAR, 1302 IWL_UCODE_SECTION_DATA)); 1303 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n", 1304 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1305 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n", 1306 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1307 1308 /* Verify that uCode images will fit in card's SRAM. */ 1309 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1310 cfg->max_inst_size) { 1311 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n", 1312 get_sec_size(pieces, IWL_UCODE_REGULAR, 1313 IWL_UCODE_SECTION_INST)); 1314 return -1; 1315 } 1316 1317 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1318 cfg->max_data_size) { 1319 IWL_ERR(drv, "uCode data len %zd too large to fit in\n", 1320 get_sec_size(pieces, IWL_UCODE_REGULAR, 1321 IWL_UCODE_SECTION_DATA)); 1322 return -1; 1323 } 1324 1325 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1326 cfg->max_inst_size) { 1327 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n", 1328 get_sec_size(pieces, IWL_UCODE_INIT, 1329 IWL_UCODE_SECTION_INST)); 1330 return -1; 1331 } 1332 1333 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1334 cfg->max_data_size) { 1335 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n", 1336 get_sec_size(pieces, IWL_UCODE_REGULAR, 1337 IWL_UCODE_SECTION_DATA)); 1338 return -1; 1339 } 1340 return 0; 1341 } 1342 1343 static struct iwl_op_mode * 1344 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1345 { 1346 const struct iwl_op_mode_ops *ops = op->ops; 1347 struct dentry *dbgfs_dir = NULL; 1348 struct iwl_op_mode *op_mode = NULL; 1349 int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY; 1350 1351 for (retry = 0; retry <= max_retry; retry++) { 1352 1353 #ifdef CONFIG_IWLWIFI_DEBUGFS 1354 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1355 drv->dbgfs_drv); 1356 dbgfs_dir = drv->dbgfs_op_mode; 1357 #endif 1358 1359 op_mode = ops->start(drv->trans, drv->trans->cfg, 1360 &drv->fw, dbgfs_dir); 1361 1362 if (op_mode) 1363 return op_mode; 1364 1365 IWL_ERR(drv, "retry init count %d\n", retry); 1366 1367 #ifdef CONFIG_IWLWIFI_DEBUGFS 1368 debugfs_remove_recursive(drv->dbgfs_op_mode); 1369 drv->dbgfs_op_mode = NULL; 1370 #endif 1371 } 1372 1373 return NULL; 1374 } 1375 1376 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1377 { 1378 /* op_mode can be NULL if its start failed */ 1379 if (drv->op_mode) { 1380 iwl_op_mode_stop(drv->op_mode); 1381 drv->op_mode = NULL; 1382 1383 #ifdef CONFIG_IWLWIFI_DEBUGFS 1384 debugfs_remove_recursive(drv->dbgfs_op_mode); 1385 drv->dbgfs_op_mode = NULL; 1386 #endif 1387 } 1388 } 1389 1390 /* 1391 * iwl_req_fw_callback - callback when firmware was loaded 1392 * 1393 * If loaded successfully, copies the firmware into buffers 1394 * for the card to fetch (via DMA). 1395 */ 1396 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1397 { 1398 struct iwl_drv *drv = context; 1399 struct iwl_fw *fw = &drv->fw; 1400 const struct iwl_ucode_header *ucode; 1401 struct iwlwifi_opmode_table *op; 1402 int err; 1403 struct iwl_firmware_pieces *pieces; 1404 const unsigned int api_max = drv->trans->cfg->ucode_api_max; 1405 const unsigned int api_min = drv->trans->cfg->ucode_api_min; 1406 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1407 u32 api_ver; 1408 int i; 1409 bool load_module = false; 1410 bool usniffer_images = false; 1411 bool failure = true; 1412 1413 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1414 fw->ucode_capa.standard_phy_calibration_size = 1415 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1416 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1417 fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX; 1418 /* dump all fw memory areas by default */ 1419 fw->dbg.dump_mask = 0xffffffff; 1420 1421 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1422 if (!pieces) 1423 goto out_free_fw; 1424 1425 if (!ucode_raw) 1426 goto try_again; 1427 1428 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1429 drv->firmware_name, ucode_raw->size); 1430 1431 /* Make sure that we got at least the API version number */ 1432 if (ucode_raw->size < 4) { 1433 IWL_ERR(drv, "File size way too small!\n"); 1434 goto try_again; 1435 } 1436 1437 /* Data from ucode file: header followed by uCode images */ 1438 ucode = (const struct iwl_ucode_header *)ucode_raw->data; 1439 1440 if (ucode->ver) 1441 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1442 else 1443 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1444 &fw->ucode_capa, &usniffer_images); 1445 1446 if (err) 1447 goto try_again; 1448 1449 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1450 api_ver = drv->fw.ucode_ver; 1451 else 1452 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1453 1454 /* 1455 * api_ver should match the api version forming part of the 1456 * firmware filename ... but we don't check for that and only rely 1457 * on the API version read from firmware header from here on forward 1458 */ 1459 if (api_ver < api_min || api_ver > api_max) { 1460 IWL_ERR(drv, 1461 "Driver unable to support your firmware API. " 1462 "Driver supports v%u, firmware is v%u.\n", 1463 api_max, api_ver); 1464 goto try_again; 1465 } 1466 1467 /* 1468 * In mvm uCode there is no difference between data and instructions 1469 * sections. 1470 */ 1471 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, 1472 drv->trans->cfg)) 1473 goto try_again; 1474 1475 /* Allocate ucode buffers for card's bus-master loading ... */ 1476 1477 /* Runtime instructions and 2 copies of data: 1478 * 1) unmodified from disk 1479 * 2) backup cache for save/restore during power-downs 1480 */ 1481 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1482 if (iwl_alloc_ucode(drv, pieces, i)) 1483 goto out_free_fw; 1484 1485 if (pieces->dbg_dest_tlv_init) { 1486 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) + 1487 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1488 drv->fw.dbg.n_dest_reg; 1489 1490 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL); 1491 1492 if (!drv->fw.dbg.dest_tlv) 1493 goto out_free_fw; 1494 1495 if (*pieces->dbg_dest_ver == 0) { 1496 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1, 1497 dbg_dest_size); 1498 } else { 1499 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv = 1500 drv->fw.dbg.dest_tlv; 1501 1502 dest_tlv->version = pieces->dbg_dest_tlv->version; 1503 dest_tlv->monitor_mode = 1504 pieces->dbg_dest_tlv->monitor_mode; 1505 dest_tlv->size_power = 1506 pieces->dbg_dest_tlv->size_power; 1507 dest_tlv->wrap_count = 1508 pieces->dbg_dest_tlv->wrap_count; 1509 dest_tlv->write_ptr_reg = 1510 pieces->dbg_dest_tlv->write_ptr_reg; 1511 dest_tlv->base_shift = 1512 pieces->dbg_dest_tlv->base_shift; 1513 memcpy(dest_tlv->reg_ops, 1514 pieces->dbg_dest_tlv->reg_ops, 1515 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1516 drv->fw.dbg.n_dest_reg); 1517 1518 /* In version 1 of the destination tlv, which is 1519 * relevant for internal buffer exclusively, 1520 * the base address is part of given with the length 1521 * of the buffer, and the size shift is give instead of 1522 * end shift. We now store these values in base_reg, 1523 * and end shift, and when dumping the data we'll 1524 * manipulate it for extracting both the length and 1525 * base address */ 1526 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg; 1527 dest_tlv->end_shift = 1528 pieces->dbg_dest_tlv->size_shift; 1529 } 1530 } 1531 1532 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) { 1533 if (pieces->dbg_conf_tlv[i]) { 1534 drv->fw.dbg.conf_tlv[i] = 1535 kmemdup(pieces->dbg_conf_tlv[i], 1536 pieces->dbg_conf_tlv_len[i], 1537 GFP_KERNEL); 1538 if (!drv->fw.dbg.conf_tlv[i]) 1539 goto out_free_fw; 1540 } 1541 } 1542 1543 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1544 1545 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1546 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1547 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1548 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1549 sizeof(struct iwl_fw_dbg_trigger_cmd); 1550 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1551 sizeof(struct iwl_fw_dbg_trigger_mlme); 1552 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1553 sizeof(struct iwl_fw_dbg_trigger_stats); 1554 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1555 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1556 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1557 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1558 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1559 sizeof(struct iwl_fw_dbg_trigger_time_event); 1560 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1561 sizeof(struct iwl_fw_dbg_trigger_ba); 1562 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1563 sizeof(struct iwl_fw_dbg_trigger_tdls); 1564 1565 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) { 1566 if (pieces->dbg_trigger_tlv[i]) { 1567 /* 1568 * If the trigger isn't long enough, WARN and exit. 1569 * Someone is trying to debug something and he won't 1570 * be able to catch the bug he is trying to chase. 1571 * We'd better be noisy to be sure he knows what's 1572 * going on. 1573 */ 1574 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1575 (trigger_tlv_sz[i] + 1576 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1577 goto out_free_fw; 1578 drv->fw.dbg.trigger_tlv_len[i] = 1579 pieces->dbg_trigger_tlv_len[i]; 1580 drv->fw.dbg.trigger_tlv[i] = 1581 kmemdup(pieces->dbg_trigger_tlv[i], 1582 drv->fw.dbg.trigger_tlv_len[i], 1583 GFP_KERNEL); 1584 if (!drv->fw.dbg.trigger_tlv[i]) 1585 goto out_free_fw; 1586 } 1587 } 1588 1589 /* Now that we can no longer fail, copy information */ 1590 1591 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv; 1592 pieces->dbg_mem_tlv = NULL; 1593 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv; 1594 1595 /* 1596 * The (size - 16) / 12 formula is based on the information recorded 1597 * for each event, which is of mode 1 (including timestamp) for all 1598 * new microcodes that include this information. 1599 */ 1600 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1601 if (pieces->init_evtlog_size) 1602 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1603 else 1604 fw->init_evtlog_size = 1605 drv->trans->trans_cfg->base_params->max_event_log_size; 1606 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1607 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1608 if (pieces->inst_evtlog_size) 1609 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1610 else 1611 fw->inst_evtlog_size = 1612 drv->trans->trans_cfg->base_params->max_event_log_size; 1613 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1614 1615 /* 1616 * figure out the offset of chain noise reset and gain commands 1617 * base on the size of standard phy calibration commands table size 1618 */ 1619 if (fw->ucode_capa.standard_phy_calibration_size > 1620 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1621 fw->ucode_capa.standard_phy_calibration_size = 1622 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1623 1624 /* We have our copies now, allow OS release its copies */ 1625 release_firmware(ucode_raw); 1626 1627 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans); 1628 1629 mutex_lock(&iwlwifi_opmode_table_mtx); 1630 switch (fw->type) { 1631 case IWL_FW_DVM: 1632 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1633 break; 1634 default: 1635 WARN(1, "Invalid fw type %d\n", fw->type); 1636 fallthrough; 1637 case IWL_FW_MVM: 1638 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1639 break; 1640 } 1641 1642 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1643 drv->fw.fw_version, op->name); 1644 1645 /* add this device to the list of devices using this op_mode */ 1646 list_add_tail(&drv->list, &op->drv); 1647 1648 if (op->ops) { 1649 drv->op_mode = _iwl_op_mode_start(drv, op); 1650 1651 if (!drv->op_mode) { 1652 mutex_unlock(&iwlwifi_opmode_table_mtx); 1653 goto out_unbind; 1654 } 1655 } else { 1656 load_module = true; 1657 } 1658 mutex_unlock(&iwlwifi_opmode_table_mtx); 1659 1660 /* 1661 * Complete the firmware request last so that 1662 * a driver unbind (stop) doesn't run while we 1663 * are doing the start() above. 1664 */ 1665 complete(&drv->request_firmware_complete); 1666 1667 /* 1668 * Load the module last so we don't block anything 1669 * else from proceeding if the module fails to load 1670 * or hangs loading. 1671 */ 1672 if (load_module) 1673 request_module("%s", op->name); 1674 failure = false; 1675 goto free; 1676 1677 try_again: 1678 /* try next, if any */ 1679 release_firmware(ucode_raw); 1680 if (iwl_request_firmware(drv, false)) 1681 goto out_unbind; 1682 goto free; 1683 1684 out_free_fw: 1685 release_firmware(ucode_raw); 1686 out_unbind: 1687 complete(&drv->request_firmware_complete); 1688 device_release_driver(drv->trans->dev); 1689 /* drv has just been freed by the release */ 1690 failure = false; 1691 free: 1692 if (failure) 1693 iwl_dealloc_ucode(drv); 1694 1695 if (pieces) { 1696 for (i = 0; i < ARRAY_SIZE(pieces->img); i++) 1697 kfree(pieces->img[i].sec); 1698 kfree(pieces->dbg_mem_tlv); 1699 kfree(pieces); 1700 } 1701 } 1702 1703 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans) 1704 { 1705 struct iwl_drv *drv; 1706 int ret; 1707 1708 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1709 if (!drv) { 1710 ret = -ENOMEM; 1711 goto err; 1712 } 1713 1714 drv->trans = trans; 1715 drv->dev = trans->dev; 1716 1717 init_completion(&drv->request_firmware_complete); 1718 INIT_LIST_HEAD(&drv->list); 1719 1720 #ifdef CONFIG_IWLWIFI_DEBUGFS 1721 /* Create the device debugfs entries. */ 1722 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1723 iwl_dbgfs_root); 1724 1725 /* Create transport layer debugfs dir */ 1726 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1727 #endif 1728 1729 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans); 1730 1731 ret = iwl_request_firmware(drv, true); 1732 if (ret) { 1733 IWL_ERR(trans, "Couldn't request the fw\n"); 1734 goto err_fw; 1735 } 1736 1737 return drv; 1738 1739 err_fw: 1740 #ifdef CONFIG_IWLWIFI_DEBUGFS 1741 debugfs_remove_recursive(drv->dbgfs_drv); 1742 iwl_dbg_tlv_free(drv->trans); 1743 #endif 1744 kfree(drv); 1745 err: 1746 return ERR_PTR(ret); 1747 } 1748 1749 void iwl_drv_stop(struct iwl_drv *drv) 1750 { 1751 wait_for_completion(&drv->request_firmware_complete); 1752 1753 _iwl_op_mode_stop(drv); 1754 1755 iwl_dealloc_ucode(drv); 1756 1757 mutex_lock(&iwlwifi_opmode_table_mtx); 1758 /* 1759 * List is empty (this item wasn't added) 1760 * when firmware loading failed -- in that 1761 * case we can't remove it from any list. 1762 */ 1763 if (!list_empty(&drv->list)) 1764 list_del(&drv->list); 1765 mutex_unlock(&iwlwifi_opmode_table_mtx); 1766 1767 #ifdef CONFIG_IWLWIFI_DEBUGFS 1768 drv->trans->ops->debugfs_cleanup(drv->trans); 1769 1770 debugfs_remove_recursive(drv->dbgfs_drv); 1771 #endif 1772 1773 iwl_dbg_tlv_free(drv->trans); 1774 1775 kfree(drv); 1776 } 1777 1778 #define ENABLE_INI (IWL_DBG_TLV_MAX_PRESET + 1) 1779 1780 /* shared module parameters */ 1781 struct iwl_mod_params iwlwifi_mod_params = { 1782 .fw_restart = true, 1783 .bt_coex_active = true, 1784 .power_level = IWL_POWER_INDEX_1, 1785 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, 1786 .enable_ini = ENABLE_INI, 1787 /* the rest are 0 by default */ 1788 }; 1789 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1790 1791 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1792 { 1793 int i; 1794 struct iwl_drv *drv; 1795 struct iwlwifi_opmode_table *op; 1796 1797 mutex_lock(&iwlwifi_opmode_table_mtx); 1798 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1799 op = &iwlwifi_opmode_table[i]; 1800 if (strcmp(op->name, name)) 1801 continue; 1802 op->ops = ops; 1803 /* TODO: need to handle exceptional case */ 1804 list_for_each_entry(drv, &op->drv, list) 1805 drv->op_mode = _iwl_op_mode_start(drv, op); 1806 1807 mutex_unlock(&iwlwifi_opmode_table_mtx); 1808 return 0; 1809 } 1810 mutex_unlock(&iwlwifi_opmode_table_mtx); 1811 return -EIO; 1812 } 1813 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1814 1815 void iwl_opmode_deregister(const char *name) 1816 { 1817 int i; 1818 struct iwl_drv *drv; 1819 1820 mutex_lock(&iwlwifi_opmode_table_mtx); 1821 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1822 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1823 continue; 1824 iwlwifi_opmode_table[i].ops = NULL; 1825 1826 /* call the stop routine for all devices */ 1827 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1828 _iwl_op_mode_stop(drv); 1829 1830 mutex_unlock(&iwlwifi_opmode_table_mtx); 1831 return; 1832 } 1833 mutex_unlock(&iwlwifi_opmode_table_mtx); 1834 } 1835 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1836 1837 static int __init iwl_drv_init(void) 1838 { 1839 int i, err; 1840 1841 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1842 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1843 1844 pr_info(DRV_DESCRIPTION "\n"); 1845 1846 #ifdef CONFIG_IWLWIFI_DEBUGFS 1847 /* Create the root of iwlwifi debugfs subsystem. */ 1848 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1849 #endif 1850 1851 err = iwl_pci_register_driver(); 1852 if (err) 1853 goto cleanup_debugfs; 1854 1855 return 0; 1856 1857 cleanup_debugfs: 1858 #ifdef CONFIG_IWLWIFI_DEBUGFS 1859 debugfs_remove_recursive(iwl_dbgfs_root); 1860 #endif 1861 return err; 1862 } 1863 module_init(iwl_drv_init); 1864 1865 static void __exit iwl_drv_exit(void) 1866 { 1867 iwl_pci_unregister_driver(); 1868 1869 #ifdef CONFIG_IWLWIFI_DEBUGFS 1870 debugfs_remove_recursive(iwl_dbgfs_root); 1871 #endif 1872 } 1873 module_exit(iwl_drv_exit); 1874 1875 #ifdef CONFIG_IWLWIFI_DEBUG 1876 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644); 1877 MODULE_PARM_DESC(debug, "debug output mask"); 1878 #endif 1879 1880 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444); 1881 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1882 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444); 1883 MODULE_PARM_DESC(11n_disable, 1884 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1885 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444); 1886 MODULE_PARM_DESC(amsdu_size, 1887 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, " 1888 "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)"); 1889 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444); 1890 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1891 1892 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444); 1893 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1894 1895 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644); 1896 MODULE_PARM_DESC(uapsd_disable, 1897 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); 1898 1899 static int enable_ini_set(const char *arg, const struct kernel_param *kp) 1900 { 1901 int ret = 0; 1902 bool res; 1903 __u32 new_enable_ini; 1904 1905 /* in case the argument type is a number */ 1906 ret = kstrtou32(arg, 0, &new_enable_ini); 1907 if (!ret) { 1908 if (new_enable_ini > ENABLE_INI) { 1909 pr_err("enable_ini cannot be %d, in range 0-16\n", new_enable_ini); 1910 return -EINVAL; 1911 } 1912 goto out; 1913 } 1914 1915 /* in case the argument type is boolean */ 1916 ret = kstrtobool(arg, &res); 1917 if (ret) 1918 return ret; 1919 new_enable_ini = (res ? ENABLE_INI : 0); 1920 1921 out: 1922 iwlwifi_mod_params.enable_ini = new_enable_ini; 1923 return 0; 1924 } 1925 1926 static const struct kernel_param_ops enable_ini_ops = { 1927 .set = enable_ini_set 1928 }; 1929 1930 module_param_cb(enable_ini, &enable_ini_ops, &iwlwifi_mod_params.enable_ini, 0644); 1931 MODULE_PARM_DESC(enable_ini, 1932 "0:disable, 1-15:FW_DBG_PRESET Values, 16:enabled without preset value defined," 1933 "Debug INI TLV FW debug infrastructure (default: 16)"); 1934 1935 /* 1936 * set bt_coex_active to true, uCode will do kill/defer 1937 * every time the priority line is asserted (BT is sending signals on the 1938 * priority line in the PCIx). 1939 * set bt_coex_active to false, uCode will ignore the BT activity and 1940 * perform the normal operation 1941 * 1942 * User might experience transmit issue on some platform due to WiFi/BT 1943 * co-exist problem. The possible behaviors are: 1944 * Able to scan and finding all the available AP 1945 * Not able to associate with any AP 1946 * On those platforms, WiFi communication can be restored by set 1947 * "bt_coex_active" module parameter to "false" 1948 * 1949 * default: bt_coex_active = true (BT_COEX_ENABLE) 1950 */ 1951 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1952 bool, 0444); 1953 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1954 1955 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444); 1956 MODULE_PARM_DESC(led_mode, "0=system default, " 1957 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1958 1959 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444); 1960 MODULE_PARM_DESC(power_save, 1961 "enable WiFi power management (default: disable)"); 1962 1963 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444); 1964 MODULE_PARM_DESC(power_level, 1965 "default power save level (range from 1 - 5, default: 1)"); 1966 1967 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444); 1968 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)"); 1969 1970 module_param_named(remove_when_gone, 1971 iwlwifi_mod_params.remove_when_gone, bool, 1972 0444); 1973 MODULE_PARM_DESC(remove_when_gone, 1974 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)"); 1975 1976 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool, 1977 S_IRUGO); 1978 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)"); 1979 1980 module_param_named(disable_11be, iwlwifi_mod_params.disable_11be, bool, 0444); 1981 MODULE_PARM_DESC(disable_11be, "Disable EHT capabilities (default: false)"); 1982