1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11 * Copyright(c) 2018 - 2019 Intel Corporation 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of version 2 of the GNU General Public License as 15 * published by the Free Software Foundation. 16 * 17 * This program is distributed in the hope that it will be useful, but 18 * WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20 * General Public License for more details. 21 * 22 * The full GNU General Public License is included in this distribution 23 * in the file called COPYING. 24 * 25 * Contact Information: 26 * Intel Linux Wireless <linuxwifi@intel.com> 27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 28 * 29 * BSD LICENSE 30 * 31 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. 32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 34 * Copyright(c) 2018 - 2019 Intel Corporation 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 41 * * Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * * Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in 45 * the documentation and/or other materials provided with the 46 * distribution. 47 * * Neither the name Intel Corporation nor the names of its 48 * contributors may be used to endorse or promote products derived 49 * from this software without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 * 63 *****************************************************************************/ 64 #include <linux/completion.h> 65 #include <linux/dma-mapping.h> 66 #include <linux/firmware.h> 67 #include <linux/module.h> 68 #include <linux/vmalloc.h> 69 70 #include "iwl-drv.h" 71 #include "iwl-csr.h" 72 #include "iwl-debug.h" 73 #include "iwl-trans.h" 74 #include "iwl-op-mode.h" 75 #include "iwl-agn-hw.h" 76 #include "fw/img.h" 77 #include "iwl-dbg-tlv.h" 78 #include "iwl-config.h" 79 #include "iwl-modparams.h" 80 #include "fw/api/alive.h" 81 82 /****************************************************************************** 83 * 84 * module boiler plate 85 * 86 ******************************************************************************/ 87 88 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" 89 MODULE_DESCRIPTION(DRV_DESCRIPTION); 90 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); 91 MODULE_LICENSE("GPL"); 92 93 #ifdef CONFIG_IWLWIFI_DEBUGFS 94 static struct dentry *iwl_dbgfs_root; 95 #endif 96 97 /** 98 * struct iwl_drv - drv common data 99 * @list: list of drv structures using this opmode 100 * @fw: the iwl_fw structure 101 * @op_mode: the running op_mode 102 * @trans: transport layer 103 * @dev: for debug prints only 104 * @fw_index: firmware revision to try loading 105 * @firmware_name: composite filename of ucode file to load 106 * @request_firmware_complete: the firmware has been obtained from user space 107 */ 108 struct iwl_drv { 109 struct list_head list; 110 struct iwl_fw fw; 111 112 struct iwl_op_mode *op_mode; 113 struct iwl_trans *trans; 114 struct device *dev; 115 116 int fw_index; /* firmware we're trying to load */ 117 char firmware_name[64]; /* name of firmware file to load */ 118 119 struct completion request_firmware_complete; 120 121 #ifdef CONFIG_IWLWIFI_DEBUGFS 122 struct dentry *dbgfs_drv; 123 struct dentry *dbgfs_trans; 124 struct dentry *dbgfs_op_mode; 125 #endif 126 }; 127 128 enum { 129 DVM_OP_MODE, 130 MVM_OP_MODE, 131 }; 132 133 /* Protects the table contents, i.e. the ops pointer & drv list */ 134 static struct mutex iwlwifi_opmode_table_mtx; 135 static struct iwlwifi_opmode_table { 136 const char *name; /* name: iwldvm, iwlmvm, etc */ 137 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ 138 struct list_head drv; /* list of devices using this op_mode */ 139 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ 140 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL }, 141 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL }, 142 }; 143 144 #define IWL_DEFAULT_SCAN_CHANNELS 40 145 146 /* 147 * struct fw_sec: Just for the image parsing process. 148 * For the fw storage we are using struct fw_desc. 149 */ 150 struct fw_sec { 151 const void *data; /* the sec data */ 152 size_t size; /* section size */ 153 u32 offset; /* offset of writing in the device */ 154 }; 155 156 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) 157 { 158 vfree(desc->data); 159 desc->data = NULL; 160 desc->len = 0; 161 } 162 163 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) 164 { 165 int i; 166 for (i = 0; i < img->num_sec; i++) 167 iwl_free_fw_desc(drv, &img->sec[i]); 168 kfree(img->sec); 169 } 170 171 static void iwl_dealloc_ucode(struct iwl_drv *drv) 172 { 173 int i; 174 175 kfree(drv->fw.dbg.dest_tlv); 176 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) 177 kfree(drv->fw.dbg.conf_tlv[i]); 178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) 179 kfree(drv->fw.dbg.trigger_tlv[i]); 180 kfree(drv->fw.dbg.mem_tlv); 181 kfree(drv->fw.iml); 182 kfree(drv->fw.ucode_capa.cmd_versions); 183 184 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 185 iwl_free_fw_img(drv, drv->fw.img + i); 186 } 187 188 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, 189 struct fw_sec *sec) 190 { 191 void *data; 192 193 desc->data = NULL; 194 195 if (!sec || !sec->size) 196 return -EINVAL; 197 198 data = vmalloc(sec->size); 199 if (!data) 200 return -ENOMEM; 201 202 desc->len = sec->size; 203 desc->offset = sec->offset; 204 memcpy(data, sec->data, desc->len); 205 desc->data = data; 206 207 return 0; 208 } 209 210 static void iwl_req_fw_callback(const struct firmware *ucode_raw, 211 void *context); 212 213 static int iwl_request_firmware(struct iwl_drv *drv, bool first) 214 { 215 const struct iwl_cfg *cfg = drv->trans->cfg; 216 char tag[8]; 217 218 if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 && 219 (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP && 220 CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) { 221 IWL_ERR(drv, 222 "Only HW steps B and C are currently supported (0x%0x)\n", 223 drv->trans->hw_rev); 224 return -EINVAL; 225 } 226 227 if (first) { 228 drv->fw_index = cfg->ucode_api_max; 229 sprintf(tag, "%d", drv->fw_index); 230 } else { 231 drv->fw_index--; 232 sprintf(tag, "%d", drv->fw_index); 233 } 234 235 if (drv->fw_index < cfg->ucode_api_min) { 236 IWL_ERR(drv, "no suitable firmware found!\n"); 237 238 if (cfg->ucode_api_min == cfg->ucode_api_max) { 239 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre, 240 cfg->ucode_api_max); 241 } else { 242 IWL_ERR(drv, "minimum version required: %s%d\n", 243 cfg->fw_name_pre, cfg->ucode_api_min); 244 IWL_ERR(drv, "maximum version supported: %s%d\n", 245 cfg->fw_name_pre, cfg->ucode_api_max); 246 } 247 248 IWL_ERR(drv, 249 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n"); 250 return -ENOENT; 251 } 252 253 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", 254 cfg->fw_name_pre, tag); 255 256 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n", 257 drv->firmware_name); 258 259 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 260 drv->trans->dev, 261 GFP_KERNEL, drv, iwl_req_fw_callback); 262 } 263 264 struct fw_img_parsing { 265 struct fw_sec *sec; 266 int sec_counter; 267 }; 268 269 /* 270 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 271 */ 272 struct fw_sec_parsing { 273 __le32 offset; 274 const u8 data[]; 275 } __packed; 276 277 /** 278 * struct iwl_tlv_calib_data - parse the default calib data from TLV 279 * 280 * @ucode_type: the uCode to which the following default calib relates. 281 * @calib: default calibrations. 282 */ 283 struct iwl_tlv_calib_data { 284 __le32 ucode_type; 285 struct iwl_tlv_calib_ctrl calib; 286 } __packed; 287 288 struct iwl_firmware_pieces { 289 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 290 291 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 292 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 293 294 /* FW debug data parsed for driver usage */ 295 bool dbg_dest_tlv_init; 296 u8 *dbg_dest_ver; 297 union { 298 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 299 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1; 300 }; 301 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 302 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 303 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 304 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 305 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv; 306 size_t n_mem_tlv; 307 }; 308 309 /* 310 * These functions are just to extract uCode section data from the pieces 311 * structure. 312 */ 313 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 314 enum iwl_ucode_type type, 315 int sec) 316 { 317 return &pieces->img[type].sec[sec]; 318 } 319 320 static void alloc_sec_data(struct iwl_firmware_pieces *pieces, 321 enum iwl_ucode_type type, 322 int sec) 323 { 324 struct fw_img_parsing *img = &pieces->img[type]; 325 struct fw_sec *sec_memory; 326 int size = sec + 1; 327 size_t alloc_size = sizeof(*img->sec) * size; 328 329 if (img->sec && img->sec_counter >= size) 330 return; 331 332 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL); 333 if (!sec_memory) 334 return; 335 336 img->sec = sec_memory; 337 img->sec_counter = size; 338 } 339 340 static void set_sec_data(struct iwl_firmware_pieces *pieces, 341 enum iwl_ucode_type type, 342 int sec, 343 const void *data) 344 { 345 alloc_sec_data(pieces, type, sec); 346 347 pieces->img[type].sec[sec].data = data; 348 } 349 350 static void set_sec_size(struct iwl_firmware_pieces *pieces, 351 enum iwl_ucode_type type, 352 int sec, 353 size_t size) 354 { 355 alloc_sec_data(pieces, type, sec); 356 357 pieces->img[type].sec[sec].size = size; 358 } 359 360 static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 361 enum iwl_ucode_type type, 362 int sec) 363 { 364 return pieces->img[type].sec[sec].size; 365 } 366 367 static void set_sec_offset(struct iwl_firmware_pieces *pieces, 368 enum iwl_ucode_type type, 369 int sec, 370 u32 offset) 371 { 372 alloc_sec_data(pieces, type, sec); 373 374 pieces->img[type].sec[sec].offset = offset; 375 } 376 377 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) 378 { 379 int i, j; 380 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; 381 struct iwl_fw_cipher_scheme *fwcs; 382 383 if (len < sizeof(*l) || 384 len < sizeof(l->size) + l->size * sizeof(l->cs[0])) 385 return -EINVAL; 386 387 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { 388 fwcs = &l->cs[j]; 389 390 /* we skip schemes with zero cipher suite selector */ 391 if (!fwcs->cipher) 392 continue; 393 394 fw->cs[j++] = *fwcs; 395 } 396 397 return 0; 398 } 399 400 /* 401 * Gets uCode section from tlv. 402 */ 403 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 404 const void *data, enum iwl_ucode_type type, 405 int size) 406 { 407 struct fw_img_parsing *img; 408 struct fw_sec *sec; 409 struct fw_sec_parsing *sec_parse; 410 size_t alloc_size; 411 412 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 413 return -1; 414 415 sec_parse = (struct fw_sec_parsing *)data; 416 417 img = &pieces->img[type]; 418 419 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1); 420 sec = krealloc(img->sec, alloc_size, GFP_KERNEL); 421 if (!sec) 422 return -ENOMEM; 423 img->sec = sec; 424 425 sec = &img->sec[img->sec_counter]; 426 427 sec->offset = le32_to_cpu(sec_parse->offset); 428 sec->data = sec_parse->data; 429 sec->size = size - sizeof(sec_parse->offset); 430 431 ++img->sec_counter; 432 433 return 0; 434 } 435 436 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 437 { 438 struct iwl_tlv_calib_data *def_calib = 439 (struct iwl_tlv_calib_data *)data; 440 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 441 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 442 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 443 ucode_type); 444 return -EINVAL; 445 } 446 drv->fw.default_calib[ucode_type].flow_trigger = 447 def_calib->calib.flow_trigger; 448 drv->fw.default_calib[ucode_type].event_trigger = 449 def_calib->calib.event_trigger; 450 451 return 0; 452 } 453 454 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 455 struct iwl_ucode_capabilities *capa) 456 { 457 const struct iwl_ucode_api *ucode_api = (void *)data; 458 u32 api_index = le32_to_cpu(ucode_api->api_index); 459 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 460 int i; 461 462 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 463 IWL_WARN(drv, 464 "api flags index %d larger than supported by driver\n", 465 api_index); 466 return; 467 } 468 469 for (i = 0; i < 32; i++) { 470 if (api_flags & BIT(i)) 471 __set_bit(i + 32 * api_index, capa->_api); 472 } 473 } 474 475 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 476 struct iwl_ucode_capabilities *capa) 477 { 478 const struct iwl_ucode_capa *ucode_capa = (void *)data; 479 u32 api_index = le32_to_cpu(ucode_capa->api_index); 480 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 481 int i; 482 483 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 484 IWL_WARN(drv, 485 "capa flags index %d larger than supported by driver\n", 486 api_index); 487 return; 488 } 489 490 for (i = 0; i < 32; i++) { 491 if (api_flags & BIT(i)) 492 __set_bit(i + 32 * api_index, capa->_capa); 493 } 494 } 495 496 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 497 const struct firmware *ucode_raw, 498 struct iwl_firmware_pieces *pieces) 499 { 500 struct iwl_ucode_header *ucode = (void *)ucode_raw->data; 501 u32 api_ver, hdr_size, build; 502 char buildstr[25]; 503 const u8 *src; 504 505 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 506 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 507 508 switch (api_ver) { 509 default: 510 hdr_size = 28; 511 if (ucode_raw->size < hdr_size) { 512 IWL_ERR(drv, "File size too small!\n"); 513 return -EINVAL; 514 } 515 build = le32_to_cpu(ucode->u.v2.build); 516 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 517 le32_to_cpu(ucode->u.v2.inst_size)); 518 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 519 le32_to_cpu(ucode->u.v2.data_size)); 520 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 521 le32_to_cpu(ucode->u.v2.init_size)); 522 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 523 le32_to_cpu(ucode->u.v2.init_data_size)); 524 src = ucode->u.v2.data; 525 break; 526 case 0: 527 case 1: 528 case 2: 529 hdr_size = 24; 530 if (ucode_raw->size < hdr_size) { 531 IWL_ERR(drv, "File size too small!\n"); 532 return -EINVAL; 533 } 534 build = 0; 535 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 536 le32_to_cpu(ucode->u.v1.inst_size)); 537 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 538 le32_to_cpu(ucode->u.v1.data_size)); 539 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 540 le32_to_cpu(ucode->u.v1.init_size)); 541 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 542 le32_to_cpu(ucode->u.v1.init_data_size)); 543 src = ucode->u.v1.data; 544 break; 545 } 546 547 if (build) 548 sprintf(buildstr, " build %u", build); 549 else 550 buildstr[0] = '\0'; 551 552 snprintf(drv->fw.fw_version, 553 sizeof(drv->fw.fw_version), 554 "%u.%u.%u.%u%s", 555 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 556 IWL_UCODE_MINOR(drv->fw.ucode_ver), 557 IWL_UCODE_API(drv->fw.ucode_ver), 558 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 559 buildstr); 560 561 /* Verify size of file vs. image size info in file's header */ 562 563 if (ucode_raw->size != hdr_size + 564 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 565 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 566 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 567 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 568 569 IWL_ERR(drv, 570 "uCode file size %d does not match expected size\n", 571 (int)ucode_raw->size); 572 return -EINVAL; 573 } 574 575 576 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 577 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 578 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 579 IWLAGN_RTC_INST_LOWER_BOUND); 580 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 581 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 582 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 583 IWLAGN_RTC_DATA_LOWER_BOUND); 584 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 585 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 586 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 587 IWLAGN_RTC_INST_LOWER_BOUND); 588 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 589 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 590 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 591 IWLAGN_RTC_DATA_LOWER_BOUND); 592 return 0; 593 } 594 595 #define FW_ADDR_CACHE_CONTROL 0xC0000000 596 597 static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 598 const struct firmware *ucode_raw, 599 struct iwl_firmware_pieces *pieces, 600 struct iwl_ucode_capabilities *capa, 601 bool *usniffer_images) 602 { 603 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; 604 struct iwl_ucode_tlv *tlv; 605 size_t len = ucode_raw->size; 606 const u8 *data; 607 u32 tlv_len; 608 u32 usniffer_img; 609 enum iwl_ucode_tlv_type tlv_type; 610 const u8 *tlv_data; 611 char buildstr[25]; 612 u32 build, paging_mem_size; 613 int num_of_cpus; 614 bool usniffer_req = false; 615 616 if (len < sizeof(*ucode)) { 617 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 618 return -EINVAL; 619 } 620 621 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 622 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 623 le32_to_cpu(ucode->magic)); 624 return -EINVAL; 625 } 626 627 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 628 memcpy(drv->fw.human_readable, ucode->human_readable, 629 sizeof(drv->fw.human_readable)); 630 build = le32_to_cpu(ucode->build); 631 632 if (build) 633 sprintf(buildstr, " build %u", build); 634 else 635 buildstr[0] = '\0'; 636 637 snprintf(drv->fw.fw_version, 638 sizeof(drv->fw.fw_version), 639 "%u.%u.%u.%u%s", 640 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 641 IWL_UCODE_MINOR(drv->fw.ucode_ver), 642 IWL_UCODE_API(drv->fw.ucode_ver), 643 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 644 buildstr); 645 646 data = ucode->data; 647 648 len -= sizeof(*ucode); 649 650 if (iwlwifi_mod_params.enable_ini) 651 iwl_alloc_dbg_tlv(drv->trans, len, data, false); 652 653 while (len >= sizeof(*tlv)) { 654 len -= sizeof(*tlv); 655 tlv = (void *)data; 656 657 tlv_len = le32_to_cpu(tlv->length); 658 tlv_type = le32_to_cpu(tlv->type); 659 tlv_data = tlv->data; 660 661 if (len < tlv_len) { 662 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 663 len, tlv_len); 664 return -EINVAL; 665 } 666 len -= ALIGN(tlv_len, 4); 667 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 668 669 switch (tlv_type) { 670 case IWL_UCODE_TLV_INST: 671 set_sec_data(pieces, IWL_UCODE_REGULAR, 672 IWL_UCODE_SECTION_INST, tlv_data); 673 set_sec_size(pieces, IWL_UCODE_REGULAR, 674 IWL_UCODE_SECTION_INST, tlv_len); 675 set_sec_offset(pieces, IWL_UCODE_REGULAR, 676 IWL_UCODE_SECTION_INST, 677 IWLAGN_RTC_INST_LOWER_BOUND); 678 break; 679 case IWL_UCODE_TLV_DATA: 680 set_sec_data(pieces, IWL_UCODE_REGULAR, 681 IWL_UCODE_SECTION_DATA, tlv_data); 682 set_sec_size(pieces, IWL_UCODE_REGULAR, 683 IWL_UCODE_SECTION_DATA, tlv_len); 684 set_sec_offset(pieces, IWL_UCODE_REGULAR, 685 IWL_UCODE_SECTION_DATA, 686 IWLAGN_RTC_DATA_LOWER_BOUND); 687 break; 688 case IWL_UCODE_TLV_INIT: 689 set_sec_data(pieces, IWL_UCODE_INIT, 690 IWL_UCODE_SECTION_INST, tlv_data); 691 set_sec_size(pieces, IWL_UCODE_INIT, 692 IWL_UCODE_SECTION_INST, tlv_len); 693 set_sec_offset(pieces, IWL_UCODE_INIT, 694 IWL_UCODE_SECTION_INST, 695 IWLAGN_RTC_INST_LOWER_BOUND); 696 break; 697 case IWL_UCODE_TLV_INIT_DATA: 698 set_sec_data(pieces, IWL_UCODE_INIT, 699 IWL_UCODE_SECTION_DATA, tlv_data); 700 set_sec_size(pieces, IWL_UCODE_INIT, 701 IWL_UCODE_SECTION_DATA, tlv_len); 702 set_sec_offset(pieces, IWL_UCODE_INIT, 703 IWL_UCODE_SECTION_DATA, 704 IWLAGN_RTC_DATA_LOWER_BOUND); 705 break; 706 case IWL_UCODE_TLV_BOOT: 707 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 708 break; 709 case IWL_UCODE_TLV_PROBE_MAX_LEN: 710 if (tlv_len != sizeof(u32)) 711 goto invalid_tlv_len; 712 capa->max_probe_length = 713 le32_to_cpup((__le32 *)tlv_data); 714 break; 715 case IWL_UCODE_TLV_PAN: 716 if (tlv_len) 717 goto invalid_tlv_len; 718 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 719 break; 720 case IWL_UCODE_TLV_FLAGS: 721 /* must be at least one u32 */ 722 if (tlv_len < sizeof(u32)) 723 goto invalid_tlv_len; 724 /* and a proper number of u32s */ 725 if (tlv_len % sizeof(u32)) 726 goto invalid_tlv_len; 727 /* 728 * This driver only reads the first u32 as 729 * right now no more features are defined, 730 * if that changes then either the driver 731 * will not work with the new firmware, or 732 * it'll not take advantage of new features. 733 */ 734 capa->flags = le32_to_cpup((__le32 *)tlv_data); 735 break; 736 case IWL_UCODE_TLV_API_CHANGES_SET: 737 if (tlv_len != sizeof(struct iwl_ucode_api)) 738 goto invalid_tlv_len; 739 iwl_set_ucode_api_flags(drv, tlv_data, capa); 740 break; 741 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 742 if (tlv_len != sizeof(struct iwl_ucode_capa)) 743 goto invalid_tlv_len; 744 iwl_set_ucode_capabilities(drv, tlv_data, capa); 745 break; 746 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 747 if (tlv_len != sizeof(u32)) 748 goto invalid_tlv_len; 749 pieces->init_evtlog_ptr = 750 le32_to_cpup((__le32 *)tlv_data); 751 break; 752 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 753 if (tlv_len != sizeof(u32)) 754 goto invalid_tlv_len; 755 pieces->init_evtlog_size = 756 le32_to_cpup((__le32 *)tlv_data); 757 break; 758 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 759 if (tlv_len != sizeof(u32)) 760 goto invalid_tlv_len; 761 pieces->init_errlog_ptr = 762 le32_to_cpup((__le32 *)tlv_data); 763 break; 764 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 765 if (tlv_len != sizeof(u32)) 766 goto invalid_tlv_len; 767 pieces->inst_evtlog_ptr = 768 le32_to_cpup((__le32 *)tlv_data); 769 break; 770 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 771 if (tlv_len != sizeof(u32)) 772 goto invalid_tlv_len; 773 pieces->inst_evtlog_size = 774 le32_to_cpup((__le32 *)tlv_data); 775 break; 776 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 777 if (tlv_len != sizeof(u32)) 778 goto invalid_tlv_len; 779 pieces->inst_errlog_ptr = 780 le32_to_cpup((__le32 *)tlv_data); 781 break; 782 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 783 if (tlv_len) 784 goto invalid_tlv_len; 785 drv->fw.enhance_sensitivity_table = true; 786 break; 787 case IWL_UCODE_TLV_WOWLAN_INST: 788 set_sec_data(pieces, IWL_UCODE_WOWLAN, 789 IWL_UCODE_SECTION_INST, tlv_data); 790 set_sec_size(pieces, IWL_UCODE_WOWLAN, 791 IWL_UCODE_SECTION_INST, tlv_len); 792 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 793 IWL_UCODE_SECTION_INST, 794 IWLAGN_RTC_INST_LOWER_BOUND); 795 break; 796 case IWL_UCODE_TLV_WOWLAN_DATA: 797 set_sec_data(pieces, IWL_UCODE_WOWLAN, 798 IWL_UCODE_SECTION_DATA, tlv_data); 799 set_sec_size(pieces, IWL_UCODE_WOWLAN, 800 IWL_UCODE_SECTION_DATA, tlv_len); 801 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 802 IWL_UCODE_SECTION_DATA, 803 IWLAGN_RTC_DATA_LOWER_BOUND); 804 break; 805 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 806 if (tlv_len != sizeof(u32)) 807 goto invalid_tlv_len; 808 capa->standard_phy_calibration_size = 809 le32_to_cpup((__le32 *)tlv_data); 810 break; 811 case IWL_UCODE_TLV_SEC_RT: 812 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 813 tlv_len); 814 drv->fw.type = IWL_FW_MVM; 815 break; 816 case IWL_UCODE_TLV_SEC_INIT: 817 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 818 tlv_len); 819 drv->fw.type = IWL_FW_MVM; 820 break; 821 case IWL_UCODE_TLV_SEC_WOWLAN: 822 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 823 tlv_len); 824 drv->fw.type = IWL_FW_MVM; 825 break; 826 case IWL_UCODE_TLV_DEF_CALIB: 827 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 828 goto invalid_tlv_len; 829 if (iwl_set_default_calib(drv, tlv_data)) 830 goto tlv_error; 831 break; 832 case IWL_UCODE_TLV_PHY_SKU: 833 if (tlv_len != sizeof(u32)) 834 goto invalid_tlv_len; 835 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); 836 drv->fw.valid_tx_ant = (drv->fw.phy_config & 837 FW_PHY_CFG_TX_CHAIN) >> 838 FW_PHY_CFG_TX_CHAIN_POS; 839 drv->fw.valid_rx_ant = (drv->fw.phy_config & 840 FW_PHY_CFG_RX_CHAIN) >> 841 FW_PHY_CFG_RX_CHAIN_POS; 842 break; 843 case IWL_UCODE_TLV_SECURE_SEC_RT: 844 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 845 tlv_len); 846 drv->fw.type = IWL_FW_MVM; 847 break; 848 case IWL_UCODE_TLV_SECURE_SEC_INIT: 849 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 850 tlv_len); 851 drv->fw.type = IWL_FW_MVM; 852 break; 853 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 854 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 855 tlv_len); 856 drv->fw.type = IWL_FW_MVM; 857 break; 858 case IWL_UCODE_TLV_NUM_OF_CPU: 859 if (tlv_len != sizeof(u32)) 860 goto invalid_tlv_len; 861 num_of_cpus = 862 le32_to_cpup((__le32 *)tlv_data); 863 864 if (num_of_cpus == 2) { 865 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 866 true; 867 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 868 true; 869 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 870 true; 871 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 872 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 873 return -EINVAL; 874 } 875 break; 876 case IWL_UCODE_TLV_CSCHEME: 877 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) 878 goto invalid_tlv_len; 879 break; 880 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 881 if (tlv_len != sizeof(u32)) 882 goto invalid_tlv_len; 883 capa->n_scan_channels = 884 le32_to_cpup((__le32 *)tlv_data); 885 break; 886 case IWL_UCODE_TLV_FW_VERSION: { 887 __le32 *ptr = (void *)tlv_data; 888 u32 major, minor; 889 u8 local_comp; 890 891 if (tlv_len != sizeof(u32) * 3) 892 goto invalid_tlv_len; 893 894 major = le32_to_cpup(ptr++); 895 minor = le32_to_cpup(ptr++); 896 local_comp = le32_to_cpup(ptr); 897 898 if (major >= 35) 899 snprintf(drv->fw.fw_version, 900 sizeof(drv->fw.fw_version), 901 "%u.%08x.%u", major, minor, local_comp); 902 else 903 snprintf(drv->fw.fw_version, 904 sizeof(drv->fw.fw_version), 905 "%u.%u.%u", major, minor, local_comp); 906 break; 907 } 908 case IWL_UCODE_TLV_FW_DBG_DEST: { 909 struct iwl_fw_dbg_dest_tlv *dest = NULL; 910 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL; 911 u8 mon_mode; 912 913 pieces->dbg_dest_ver = (u8 *)tlv_data; 914 if (*pieces->dbg_dest_ver == 1) { 915 dest = (void *)tlv_data; 916 } else if (*pieces->dbg_dest_ver == 0) { 917 dest_v1 = (void *)tlv_data; 918 } else { 919 IWL_ERR(drv, 920 "The version is %d, and it is invalid\n", 921 *pieces->dbg_dest_ver); 922 break; 923 } 924 925 if (pieces->dbg_dest_tlv_init) { 926 IWL_ERR(drv, 927 "dbg destination ignored, already exists\n"); 928 break; 929 } 930 931 pieces->dbg_dest_tlv_init = true; 932 933 if (dest_v1) { 934 pieces->dbg_dest_tlv_v1 = dest_v1; 935 mon_mode = dest_v1->monitor_mode; 936 } else { 937 pieces->dbg_dest_tlv = dest; 938 mon_mode = dest->monitor_mode; 939 } 940 941 IWL_INFO(drv, "Found debug destination: %s\n", 942 get_fw_dbg_mode_string(mon_mode)); 943 944 drv->fw.dbg.n_dest_reg = (dest_v1) ? 945 tlv_len - 946 offsetof(struct iwl_fw_dbg_dest_tlv_v1, 947 reg_ops) : 948 tlv_len - 949 offsetof(struct iwl_fw_dbg_dest_tlv, 950 reg_ops); 951 952 drv->fw.dbg.n_dest_reg /= 953 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]); 954 955 break; 956 } 957 case IWL_UCODE_TLV_FW_DBG_CONF: { 958 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; 959 960 if (!pieces->dbg_dest_tlv_init) { 961 IWL_ERR(drv, 962 "Ignore dbg config %d - no destination configured\n", 963 conf->id); 964 break; 965 } 966 967 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) { 968 IWL_ERR(drv, 969 "Skip unknown configuration: %d\n", 970 conf->id); 971 break; 972 } 973 974 if (pieces->dbg_conf_tlv[conf->id]) { 975 IWL_ERR(drv, 976 "Ignore duplicate dbg config %d\n", 977 conf->id); 978 break; 979 } 980 981 if (conf->usniffer) 982 usniffer_req = true; 983 984 IWL_INFO(drv, "Found debug configuration: %d\n", 985 conf->id); 986 987 pieces->dbg_conf_tlv[conf->id] = conf; 988 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 989 break; 990 } 991 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 992 struct iwl_fw_dbg_trigger_tlv *trigger = 993 (void *)tlv_data; 994 u32 trigger_id = le32_to_cpu(trigger->id); 995 996 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) { 997 IWL_ERR(drv, 998 "Skip unknown trigger: %u\n", 999 trigger->id); 1000 break; 1001 } 1002 1003 if (pieces->dbg_trigger_tlv[trigger_id]) { 1004 IWL_ERR(drv, 1005 "Ignore duplicate dbg trigger %u\n", 1006 trigger->id); 1007 break; 1008 } 1009 1010 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 1011 1012 pieces->dbg_trigger_tlv[trigger_id] = trigger; 1013 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 1014 break; 1015 } 1016 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: { 1017 if (tlv_len != sizeof(u32)) { 1018 IWL_ERR(drv, 1019 "dbg lst mask size incorrect, skip\n"); 1020 break; 1021 } 1022 1023 drv->fw.dbg.dump_mask = 1024 le32_to_cpup((__le32 *)tlv_data); 1025 break; 1026 } 1027 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 1028 *usniffer_images = true; 1029 iwl_store_ucode_sec(pieces, tlv_data, 1030 IWL_UCODE_REGULAR_USNIFFER, 1031 tlv_len); 1032 break; 1033 case IWL_UCODE_TLV_PAGING: 1034 if (tlv_len != sizeof(u32)) 1035 goto invalid_tlv_len; 1036 paging_mem_size = le32_to_cpup((__le32 *)tlv_data); 1037 1038 IWL_DEBUG_FW(drv, 1039 "Paging: paging enabled (size = %u bytes)\n", 1040 paging_mem_size); 1041 1042 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 1043 IWL_ERR(drv, 1044 "Paging: driver supports up to %lu bytes for paging image\n", 1045 MAX_PAGING_IMAGE_SIZE); 1046 return -EINVAL; 1047 } 1048 1049 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1050 IWL_ERR(drv, 1051 "Paging: image isn't multiple %lu\n", 1052 FW_PAGING_SIZE); 1053 return -EINVAL; 1054 } 1055 1056 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1057 paging_mem_size; 1058 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1059 drv->fw.img[usniffer_img].paging_mem_size = 1060 paging_mem_size; 1061 break; 1062 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1063 /* ignored */ 1064 break; 1065 case IWL_UCODE_TLV_FW_MEM_SEG: { 1066 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = 1067 (void *)tlv_data; 1068 size_t size; 1069 struct iwl_fw_dbg_mem_seg_tlv *n; 1070 1071 if (tlv_len != (sizeof(*dbg_mem))) 1072 goto invalid_tlv_len; 1073 1074 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", 1075 dbg_mem->data_type); 1076 1077 size = sizeof(*pieces->dbg_mem_tlv) * 1078 (pieces->n_mem_tlv + 1); 1079 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL); 1080 if (!n) 1081 return -ENOMEM; 1082 pieces->dbg_mem_tlv = n; 1083 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem; 1084 pieces->n_mem_tlv++; 1085 break; 1086 } 1087 case IWL_UCODE_TLV_IML: { 1088 drv->fw.iml_len = tlv_len; 1089 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1090 if (!drv->fw.iml) 1091 return -ENOMEM; 1092 break; 1093 } 1094 case IWL_UCODE_TLV_FW_RECOVERY_INFO: { 1095 struct { 1096 __le32 buf_addr; 1097 __le32 buf_size; 1098 } *recov_info = (void *)tlv_data; 1099 1100 if (tlv_len != sizeof(*recov_info)) 1101 goto invalid_tlv_len; 1102 capa->error_log_addr = 1103 le32_to_cpu(recov_info->buf_addr); 1104 capa->error_log_size = 1105 le32_to_cpu(recov_info->buf_size); 1106 } 1107 break; 1108 case IWL_UCODE_TLV_FW_FSEQ_VERSION: { 1109 struct { 1110 u8 version[32]; 1111 u8 sha1[20]; 1112 } *fseq_ver = (void *)tlv_data; 1113 1114 if (tlv_len != sizeof(*fseq_ver)) 1115 goto invalid_tlv_len; 1116 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n", 1117 fseq_ver->version); 1118 } 1119 break; 1120 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: { 1121 struct iwl_umac_debug_addrs *dbg_ptrs = 1122 (void *)tlv_data; 1123 1124 if (tlv_len != sizeof(*dbg_ptrs)) 1125 goto invalid_tlv_len; 1126 if (drv->trans->cfg->device_family < 1127 IWL_DEVICE_FAMILY_22000) 1128 break; 1129 drv->trans->dbg.umac_error_event_table = 1130 le32_to_cpu(dbg_ptrs->error_info_addr) & 1131 ~FW_ADDR_CACHE_CONTROL; 1132 drv->trans->dbg.error_event_table_tlv_status |= 1133 IWL_ERROR_EVENT_TABLE_UMAC; 1134 break; 1135 } 1136 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: { 1137 struct iwl_lmac_debug_addrs *dbg_ptrs = 1138 (void *)tlv_data; 1139 1140 if (tlv_len != sizeof(*dbg_ptrs)) 1141 goto invalid_tlv_len; 1142 if (drv->trans->cfg->device_family < 1143 IWL_DEVICE_FAMILY_22000) 1144 break; 1145 drv->trans->dbg.lmac_error_event_table[0] = 1146 le32_to_cpu(dbg_ptrs->error_event_table_ptr) & 1147 ~FW_ADDR_CACHE_CONTROL; 1148 drv->trans->dbg.error_event_table_tlv_status |= 1149 IWL_ERROR_EVENT_TABLE_LMAC1; 1150 break; 1151 } 1152 case IWL_UCODE_TLV_TYPE_DEBUG_INFO: 1153 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION: 1154 case IWL_UCODE_TLV_TYPE_HCMD: 1155 case IWL_UCODE_TLV_TYPE_REGIONS: 1156 case IWL_UCODE_TLV_TYPE_TRIGGERS: 1157 case IWL_UCODE_TLV_TYPE_DEBUG_FLOW: 1158 if (iwlwifi_mod_params.enable_ini) 1159 iwl_fw_dbg_copy_tlv(drv->trans, tlv, false); 1160 break; 1161 case IWL_UCODE_TLV_CMD_VERSIONS: 1162 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) { 1163 IWL_ERR(drv, 1164 "Invalid length for command versions: %u\n", 1165 tlv_len); 1166 tlv_len /= sizeof(struct iwl_fw_cmd_version); 1167 tlv_len *= sizeof(struct iwl_fw_cmd_version); 1168 } 1169 if (WARN_ON(capa->cmd_versions)) 1170 return -EINVAL; 1171 capa->cmd_versions = kmemdup(tlv_data, tlv_len, 1172 GFP_KERNEL); 1173 if (!capa->cmd_versions) 1174 return -ENOMEM; 1175 capa->n_cmd_versions = 1176 tlv_len / sizeof(struct iwl_fw_cmd_version); 1177 break; 1178 default: 1179 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1180 break; 1181 } 1182 } 1183 1184 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 1185 usniffer_req && !*usniffer_images) { 1186 IWL_ERR(drv, 1187 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1188 return -EINVAL; 1189 } 1190 1191 if (len) { 1192 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1193 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); 1194 return -EINVAL; 1195 } 1196 1197 return 0; 1198 1199 invalid_tlv_len: 1200 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1201 tlv_error: 1202 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1203 1204 return -EINVAL; 1205 } 1206 1207 static int iwl_alloc_ucode(struct iwl_drv *drv, 1208 struct iwl_firmware_pieces *pieces, 1209 enum iwl_ucode_type type) 1210 { 1211 int i; 1212 struct fw_desc *sec; 1213 1214 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL); 1215 if (!sec) 1216 return -ENOMEM; 1217 drv->fw.img[type].sec = sec; 1218 drv->fw.img[type].num_sec = pieces->img[type].sec_counter; 1219 1220 for (i = 0; i < pieces->img[type].sec_counter; i++) 1221 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i))) 1222 return -ENOMEM; 1223 1224 return 0; 1225 } 1226 1227 static int validate_sec_sizes(struct iwl_drv *drv, 1228 struct iwl_firmware_pieces *pieces, 1229 const struct iwl_cfg *cfg) 1230 { 1231 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n", 1232 get_sec_size(pieces, IWL_UCODE_REGULAR, 1233 IWL_UCODE_SECTION_INST)); 1234 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n", 1235 get_sec_size(pieces, IWL_UCODE_REGULAR, 1236 IWL_UCODE_SECTION_DATA)); 1237 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n", 1238 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1239 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n", 1240 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1241 1242 /* Verify that uCode images will fit in card's SRAM. */ 1243 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1244 cfg->max_inst_size) { 1245 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n", 1246 get_sec_size(pieces, IWL_UCODE_REGULAR, 1247 IWL_UCODE_SECTION_INST)); 1248 return -1; 1249 } 1250 1251 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1252 cfg->max_data_size) { 1253 IWL_ERR(drv, "uCode data len %zd too large to fit in\n", 1254 get_sec_size(pieces, IWL_UCODE_REGULAR, 1255 IWL_UCODE_SECTION_DATA)); 1256 return -1; 1257 } 1258 1259 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1260 cfg->max_inst_size) { 1261 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n", 1262 get_sec_size(pieces, IWL_UCODE_INIT, 1263 IWL_UCODE_SECTION_INST)); 1264 return -1; 1265 } 1266 1267 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1268 cfg->max_data_size) { 1269 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n", 1270 get_sec_size(pieces, IWL_UCODE_REGULAR, 1271 IWL_UCODE_SECTION_DATA)); 1272 return -1; 1273 } 1274 return 0; 1275 } 1276 1277 static struct iwl_op_mode * 1278 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1279 { 1280 const struct iwl_op_mode_ops *ops = op->ops; 1281 struct dentry *dbgfs_dir = NULL; 1282 struct iwl_op_mode *op_mode = NULL; 1283 1284 #ifdef CONFIG_IWLWIFI_DEBUGFS 1285 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1286 drv->dbgfs_drv); 1287 dbgfs_dir = drv->dbgfs_op_mode; 1288 #endif 1289 1290 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir); 1291 1292 #ifdef CONFIG_IWLWIFI_DEBUGFS 1293 if (!op_mode) { 1294 debugfs_remove_recursive(drv->dbgfs_op_mode); 1295 drv->dbgfs_op_mode = NULL; 1296 } 1297 #endif 1298 1299 return op_mode; 1300 } 1301 1302 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1303 { 1304 /* op_mode can be NULL if its start failed */ 1305 if (drv->op_mode) { 1306 iwl_op_mode_stop(drv->op_mode); 1307 drv->op_mode = NULL; 1308 1309 #ifdef CONFIG_IWLWIFI_DEBUGFS 1310 debugfs_remove_recursive(drv->dbgfs_op_mode); 1311 drv->dbgfs_op_mode = NULL; 1312 #endif 1313 } 1314 } 1315 1316 /** 1317 * iwl_req_fw_callback - callback when firmware was loaded 1318 * 1319 * If loaded successfully, copies the firmware into buffers 1320 * for the card to fetch (via DMA). 1321 */ 1322 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1323 { 1324 struct iwl_drv *drv = context; 1325 struct iwl_fw *fw = &drv->fw; 1326 struct iwl_ucode_header *ucode; 1327 struct iwlwifi_opmode_table *op; 1328 int err; 1329 struct iwl_firmware_pieces *pieces; 1330 const unsigned int api_max = drv->trans->cfg->ucode_api_max; 1331 const unsigned int api_min = drv->trans->cfg->ucode_api_min; 1332 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1333 u32 api_ver; 1334 int i; 1335 bool load_module = false; 1336 bool usniffer_images = false; 1337 1338 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1339 fw->ucode_capa.standard_phy_calibration_size = 1340 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1341 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1342 /* dump all fw memory areas by default */ 1343 fw->dbg.dump_mask = 0xffffffff; 1344 1345 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1346 if (!pieces) 1347 goto out_free_fw; 1348 1349 if (!ucode_raw) 1350 goto try_again; 1351 1352 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1353 drv->firmware_name, ucode_raw->size); 1354 1355 /* Make sure that we got at least the API version number */ 1356 if (ucode_raw->size < 4) { 1357 IWL_ERR(drv, "File size way too small!\n"); 1358 goto try_again; 1359 } 1360 1361 /* Data from ucode file: header followed by uCode images */ 1362 ucode = (struct iwl_ucode_header *)ucode_raw->data; 1363 1364 if (ucode->ver) 1365 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1366 else 1367 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1368 &fw->ucode_capa, &usniffer_images); 1369 1370 if (err) 1371 goto try_again; 1372 1373 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1374 api_ver = drv->fw.ucode_ver; 1375 else 1376 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1377 1378 /* 1379 * api_ver should match the api version forming part of the 1380 * firmware filename ... but we don't check for that and only rely 1381 * on the API version read from firmware header from here on forward 1382 */ 1383 if (api_ver < api_min || api_ver > api_max) { 1384 IWL_ERR(drv, 1385 "Driver unable to support your firmware API. " 1386 "Driver supports v%u, firmware is v%u.\n", 1387 api_max, api_ver); 1388 goto try_again; 1389 } 1390 1391 /* 1392 * In mvm uCode there is no difference between data and instructions 1393 * sections. 1394 */ 1395 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, 1396 drv->trans->cfg)) 1397 goto try_again; 1398 1399 /* Allocate ucode buffers for card's bus-master loading ... */ 1400 1401 /* Runtime instructions and 2 copies of data: 1402 * 1) unmodified from disk 1403 * 2) backup cache for save/restore during power-downs 1404 */ 1405 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1406 if (iwl_alloc_ucode(drv, pieces, i)) 1407 goto out_free_fw; 1408 1409 if (pieces->dbg_dest_tlv_init) { 1410 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) + 1411 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1412 drv->fw.dbg.n_dest_reg; 1413 1414 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL); 1415 1416 if (!drv->fw.dbg.dest_tlv) 1417 goto out_free_fw; 1418 1419 if (*pieces->dbg_dest_ver == 0) { 1420 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1, 1421 dbg_dest_size); 1422 } else { 1423 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv = 1424 drv->fw.dbg.dest_tlv; 1425 1426 dest_tlv->version = pieces->dbg_dest_tlv->version; 1427 dest_tlv->monitor_mode = 1428 pieces->dbg_dest_tlv->monitor_mode; 1429 dest_tlv->size_power = 1430 pieces->dbg_dest_tlv->size_power; 1431 dest_tlv->wrap_count = 1432 pieces->dbg_dest_tlv->wrap_count; 1433 dest_tlv->write_ptr_reg = 1434 pieces->dbg_dest_tlv->write_ptr_reg; 1435 dest_tlv->base_shift = 1436 pieces->dbg_dest_tlv->base_shift; 1437 memcpy(dest_tlv->reg_ops, 1438 pieces->dbg_dest_tlv->reg_ops, 1439 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1440 drv->fw.dbg.n_dest_reg); 1441 1442 /* In version 1 of the destination tlv, which is 1443 * relevant for internal buffer exclusively, 1444 * the base address is part of given with the length 1445 * of the buffer, and the size shift is give instead of 1446 * end shift. We now store these values in base_reg, 1447 * and end shift, and when dumping the data we'll 1448 * manipulate it for extracting both the length and 1449 * base address */ 1450 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg; 1451 dest_tlv->end_shift = 1452 pieces->dbg_dest_tlv->size_shift; 1453 } 1454 } 1455 1456 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) { 1457 if (pieces->dbg_conf_tlv[i]) { 1458 drv->fw.dbg.conf_tlv[i] = 1459 kmemdup(pieces->dbg_conf_tlv[i], 1460 pieces->dbg_conf_tlv_len[i], 1461 GFP_KERNEL); 1462 if (!pieces->dbg_conf_tlv_len[i]) 1463 goto out_free_fw; 1464 } 1465 } 1466 1467 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1468 1469 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1470 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1471 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1472 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1473 sizeof(struct iwl_fw_dbg_trigger_cmd); 1474 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1475 sizeof(struct iwl_fw_dbg_trigger_mlme); 1476 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1477 sizeof(struct iwl_fw_dbg_trigger_stats); 1478 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1479 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1480 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1481 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1482 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1483 sizeof(struct iwl_fw_dbg_trigger_time_event); 1484 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1485 sizeof(struct iwl_fw_dbg_trigger_ba); 1486 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1487 sizeof(struct iwl_fw_dbg_trigger_tdls); 1488 1489 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) { 1490 if (pieces->dbg_trigger_tlv[i]) { 1491 /* 1492 * If the trigger isn't long enough, WARN and exit. 1493 * Someone is trying to debug something and he won't 1494 * be able to catch the bug he is trying to chase. 1495 * We'd better be noisy to be sure he knows what's 1496 * going on. 1497 */ 1498 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1499 (trigger_tlv_sz[i] + 1500 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1501 goto out_free_fw; 1502 drv->fw.dbg.trigger_tlv_len[i] = 1503 pieces->dbg_trigger_tlv_len[i]; 1504 drv->fw.dbg.trigger_tlv[i] = 1505 kmemdup(pieces->dbg_trigger_tlv[i], 1506 drv->fw.dbg.trigger_tlv_len[i], 1507 GFP_KERNEL); 1508 if (!drv->fw.dbg.trigger_tlv[i]) 1509 goto out_free_fw; 1510 } 1511 } 1512 1513 /* Now that we can no longer fail, copy information */ 1514 1515 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv; 1516 pieces->dbg_mem_tlv = NULL; 1517 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv; 1518 1519 /* 1520 * The (size - 16) / 12 formula is based on the information recorded 1521 * for each event, which is of mode 1 (including timestamp) for all 1522 * new microcodes that include this information. 1523 */ 1524 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1525 if (pieces->init_evtlog_size) 1526 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1527 else 1528 fw->init_evtlog_size = 1529 drv->trans->cfg->base_params->max_event_log_size; 1530 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1531 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1532 if (pieces->inst_evtlog_size) 1533 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1534 else 1535 fw->inst_evtlog_size = 1536 drv->trans->cfg->base_params->max_event_log_size; 1537 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1538 1539 /* 1540 * figure out the offset of chain noise reset and gain commands 1541 * base on the size of standard phy calibration commands table size 1542 */ 1543 if (fw->ucode_capa.standard_phy_calibration_size > 1544 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1545 fw->ucode_capa.standard_phy_calibration_size = 1546 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1547 1548 /* We have our copies now, allow OS release its copies */ 1549 release_firmware(ucode_raw); 1550 1551 mutex_lock(&iwlwifi_opmode_table_mtx); 1552 switch (fw->type) { 1553 case IWL_FW_DVM: 1554 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1555 break; 1556 default: 1557 WARN(1, "Invalid fw type %d\n", fw->type); 1558 /* fall through */ 1559 case IWL_FW_MVM: 1560 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1561 break; 1562 } 1563 1564 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1565 drv->fw.fw_version, op->name); 1566 1567 /* add this device to the list of devices using this op_mode */ 1568 list_add_tail(&drv->list, &op->drv); 1569 1570 if (op->ops) { 1571 drv->op_mode = _iwl_op_mode_start(drv, op); 1572 1573 if (!drv->op_mode) { 1574 mutex_unlock(&iwlwifi_opmode_table_mtx); 1575 goto out_unbind; 1576 } 1577 } else { 1578 load_module = true; 1579 } 1580 mutex_unlock(&iwlwifi_opmode_table_mtx); 1581 1582 /* 1583 * Complete the firmware request last so that 1584 * a driver unbind (stop) doesn't run while we 1585 * are doing the start() above. 1586 */ 1587 complete(&drv->request_firmware_complete); 1588 1589 /* 1590 * Load the module last so we don't block anything 1591 * else from proceeding if the module fails to load 1592 * or hangs loading. 1593 */ 1594 if (load_module) { 1595 request_module("%s", op->name); 1596 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR 1597 if (err) 1598 IWL_ERR(drv, 1599 "failed to load module %s (error %d), is dynamic loading enabled?\n", 1600 op->name, err); 1601 #endif 1602 } 1603 goto free; 1604 1605 try_again: 1606 /* try next, if any */ 1607 release_firmware(ucode_raw); 1608 if (iwl_request_firmware(drv, false)) 1609 goto out_unbind; 1610 goto free; 1611 1612 out_free_fw: 1613 release_firmware(ucode_raw); 1614 out_unbind: 1615 complete(&drv->request_firmware_complete); 1616 device_release_driver(drv->trans->dev); 1617 free: 1618 if (pieces) { 1619 for (i = 0; i < ARRAY_SIZE(pieces->img); i++) 1620 kfree(pieces->img[i].sec); 1621 kfree(pieces->dbg_mem_tlv); 1622 kfree(pieces); 1623 } 1624 } 1625 1626 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans) 1627 { 1628 struct iwl_drv *drv; 1629 int ret; 1630 1631 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1632 if (!drv) { 1633 ret = -ENOMEM; 1634 goto err; 1635 } 1636 1637 drv->trans = trans; 1638 drv->dev = trans->dev; 1639 1640 init_completion(&drv->request_firmware_complete); 1641 INIT_LIST_HEAD(&drv->list); 1642 1643 iwl_load_fw_dbg_tlv(drv->trans->dev, drv->trans); 1644 1645 #ifdef CONFIG_IWLWIFI_DEBUGFS 1646 /* Create the device debugfs entries. */ 1647 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1648 iwl_dbgfs_root); 1649 1650 /* Create transport layer debugfs dir */ 1651 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1652 #endif 1653 1654 ret = iwl_request_firmware(drv, true); 1655 if (ret) { 1656 IWL_ERR(trans, "Couldn't request the fw\n"); 1657 goto err_fw; 1658 } 1659 1660 return drv; 1661 1662 err_fw: 1663 #ifdef CONFIG_IWLWIFI_DEBUGFS 1664 debugfs_remove_recursive(drv->dbgfs_drv); 1665 iwl_fw_dbg_free(drv->trans); 1666 #endif 1667 kfree(drv); 1668 err: 1669 return ERR_PTR(ret); 1670 } 1671 1672 void iwl_drv_stop(struct iwl_drv *drv) 1673 { 1674 wait_for_completion(&drv->request_firmware_complete); 1675 1676 _iwl_op_mode_stop(drv); 1677 1678 iwl_dealloc_ucode(drv); 1679 1680 mutex_lock(&iwlwifi_opmode_table_mtx); 1681 /* 1682 * List is empty (this item wasn't added) 1683 * when firmware loading failed -- in that 1684 * case we can't remove it from any list. 1685 */ 1686 if (!list_empty(&drv->list)) 1687 list_del(&drv->list); 1688 mutex_unlock(&iwlwifi_opmode_table_mtx); 1689 1690 #ifdef CONFIG_IWLWIFI_DEBUGFS 1691 drv->trans->ops->debugfs_cleanup(drv->trans); 1692 1693 debugfs_remove_recursive(drv->dbgfs_drv); 1694 #endif 1695 1696 iwl_fw_dbg_free(drv->trans); 1697 1698 kfree(drv); 1699 } 1700 1701 1702 /* shared module parameters */ 1703 struct iwl_mod_params iwlwifi_mod_params = { 1704 .fw_restart = true, 1705 .bt_coex_active = true, 1706 .power_level = IWL_POWER_INDEX_1, 1707 .d0i3_disable = true, 1708 .d0i3_timeout = 1000, 1709 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, 1710 /* the rest are 0 by default */ 1711 }; 1712 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1713 1714 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1715 { 1716 int i; 1717 struct iwl_drv *drv; 1718 struct iwlwifi_opmode_table *op; 1719 1720 mutex_lock(&iwlwifi_opmode_table_mtx); 1721 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1722 op = &iwlwifi_opmode_table[i]; 1723 if (strcmp(op->name, name)) 1724 continue; 1725 op->ops = ops; 1726 /* TODO: need to handle exceptional case */ 1727 list_for_each_entry(drv, &op->drv, list) 1728 drv->op_mode = _iwl_op_mode_start(drv, op); 1729 1730 mutex_unlock(&iwlwifi_opmode_table_mtx); 1731 return 0; 1732 } 1733 mutex_unlock(&iwlwifi_opmode_table_mtx); 1734 return -EIO; 1735 } 1736 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1737 1738 void iwl_opmode_deregister(const char *name) 1739 { 1740 int i; 1741 struct iwl_drv *drv; 1742 1743 mutex_lock(&iwlwifi_opmode_table_mtx); 1744 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1745 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1746 continue; 1747 iwlwifi_opmode_table[i].ops = NULL; 1748 1749 /* call the stop routine for all devices */ 1750 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1751 _iwl_op_mode_stop(drv); 1752 1753 mutex_unlock(&iwlwifi_opmode_table_mtx); 1754 return; 1755 } 1756 mutex_unlock(&iwlwifi_opmode_table_mtx); 1757 } 1758 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1759 1760 static int __init iwl_drv_init(void) 1761 { 1762 int i, err; 1763 1764 mutex_init(&iwlwifi_opmode_table_mtx); 1765 1766 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1767 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1768 1769 pr_info(DRV_DESCRIPTION "\n"); 1770 pr_info(DRV_COPYRIGHT "\n"); 1771 1772 #ifdef CONFIG_IWLWIFI_DEBUGFS 1773 /* Create the root of iwlwifi debugfs subsystem. */ 1774 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1775 #endif 1776 1777 err = iwl_pci_register_driver(); 1778 if (err) 1779 goto cleanup_debugfs; 1780 1781 return 0; 1782 1783 cleanup_debugfs: 1784 #ifdef CONFIG_IWLWIFI_DEBUGFS 1785 debugfs_remove_recursive(iwl_dbgfs_root); 1786 #endif 1787 return err; 1788 } 1789 module_init(iwl_drv_init); 1790 1791 static void __exit iwl_drv_exit(void) 1792 { 1793 iwl_pci_unregister_driver(); 1794 1795 #ifdef CONFIG_IWLWIFI_DEBUGFS 1796 debugfs_remove_recursive(iwl_dbgfs_root); 1797 #endif 1798 } 1799 module_exit(iwl_drv_exit); 1800 1801 #ifdef CONFIG_IWLWIFI_DEBUG 1802 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644); 1803 MODULE_PARM_DESC(debug, "debug output mask"); 1804 #endif 1805 1806 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444); 1807 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1808 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444); 1809 MODULE_PARM_DESC(11n_disable, 1810 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1811 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444); 1812 MODULE_PARM_DESC(amsdu_size, 1813 "amsdu size 0: 12K for multi Rx queue devices, 2K for 22560 devices, " 1814 "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)"); 1815 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444); 1816 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1817 1818 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling, 1819 int, 0444); 1820 MODULE_PARM_DESC(antenna_coupling, 1821 "specify antenna coupling in dB (default: 0 dB)"); 1822 1823 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444); 1824 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1825 1826 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, bool, 0444); 1827 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)"); 1828 1829 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444); 1830 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)"); 1831 1832 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644); 1833 MODULE_PARM_DESC(uapsd_disable, 1834 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); 1835 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, 1836 bool, S_IRUGO | S_IWUSR); 1837 MODULE_PARM_DESC(enable_ini, 1838 "Enable debug INI TLV FW debug infrastructure (default: 0"); 1839 1840 /* 1841 * set bt_coex_active to true, uCode will do kill/defer 1842 * every time the priority line is asserted (BT is sending signals on the 1843 * priority line in the PCIx). 1844 * set bt_coex_active to false, uCode will ignore the BT activity and 1845 * perform the normal operation 1846 * 1847 * User might experience transmit issue on some platform due to WiFi/BT 1848 * co-exist problem. The possible behaviors are: 1849 * Able to scan and finding all the available AP 1850 * Not able to associate with any AP 1851 * On those platforms, WiFi communication can be restored by set 1852 * "bt_coex_active" module parameter to "false" 1853 * 1854 * default: bt_coex_active = true (BT_COEX_ENABLE) 1855 */ 1856 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1857 bool, 0444); 1858 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1859 1860 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444); 1861 MODULE_PARM_DESC(led_mode, "0=system default, " 1862 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1863 1864 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444); 1865 MODULE_PARM_DESC(power_save, 1866 "enable WiFi power management (default: disable)"); 1867 1868 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444); 1869 MODULE_PARM_DESC(power_level, 1870 "default power save level (range from 1 - 5, default: 1)"); 1871 1872 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444); 1873 MODULE_PARM_DESC(fw_monitor, 1874 "firmware monitor - to debug FW (default: false - needs lots of memory)"); 1875 1876 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout, uint, 0444); 1877 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)"); 1878 1879 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444); 1880 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)"); 1881 1882 module_param_named(remove_when_gone, 1883 iwlwifi_mod_params.remove_when_gone, bool, 1884 0444); 1885 MODULE_PARM_DESC(remove_when_gone, 1886 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)"); 1887 1888 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool, 1889 S_IRUGO); 1890 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)"); 1891