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->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 while (len >= sizeof(*tlv)) { 651 len -= sizeof(*tlv); 652 tlv = (void *)data; 653 654 tlv_len = le32_to_cpu(tlv->length); 655 tlv_type = le32_to_cpu(tlv->type); 656 tlv_data = tlv->data; 657 658 if (len < tlv_len) { 659 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 660 len, tlv_len); 661 return -EINVAL; 662 } 663 len -= ALIGN(tlv_len, 4); 664 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 665 666 switch (tlv_type) { 667 case IWL_UCODE_TLV_INST: 668 set_sec_data(pieces, IWL_UCODE_REGULAR, 669 IWL_UCODE_SECTION_INST, tlv_data); 670 set_sec_size(pieces, IWL_UCODE_REGULAR, 671 IWL_UCODE_SECTION_INST, tlv_len); 672 set_sec_offset(pieces, IWL_UCODE_REGULAR, 673 IWL_UCODE_SECTION_INST, 674 IWLAGN_RTC_INST_LOWER_BOUND); 675 break; 676 case IWL_UCODE_TLV_DATA: 677 set_sec_data(pieces, IWL_UCODE_REGULAR, 678 IWL_UCODE_SECTION_DATA, tlv_data); 679 set_sec_size(pieces, IWL_UCODE_REGULAR, 680 IWL_UCODE_SECTION_DATA, tlv_len); 681 set_sec_offset(pieces, IWL_UCODE_REGULAR, 682 IWL_UCODE_SECTION_DATA, 683 IWLAGN_RTC_DATA_LOWER_BOUND); 684 break; 685 case IWL_UCODE_TLV_INIT: 686 set_sec_data(pieces, IWL_UCODE_INIT, 687 IWL_UCODE_SECTION_INST, tlv_data); 688 set_sec_size(pieces, IWL_UCODE_INIT, 689 IWL_UCODE_SECTION_INST, tlv_len); 690 set_sec_offset(pieces, IWL_UCODE_INIT, 691 IWL_UCODE_SECTION_INST, 692 IWLAGN_RTC_INST_LOWER_BOUND); 693 break; 694 case IWL_UCODE_TLV_INIT_DATA: 695 set_sec_data(pieces, IWL_UCODE_INIT, 696 IWL_UCODE_SECTION_DATA, tlv_data); 697 set_sec_size(pieces, IWL_UCODE_INIT, 698 IWL_UCODE_SECTION_DATA, tlv_len); 699 set_sec_offset(pieces, IWL_UCODE_INIT, 700 IWL_UCODE_SECTION_DATA, 701 IWLAGN_RTC_DATA_LOWER_BOUND); 702 break; 703 case IWL_UCODE_TLV_BOOT: 704 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 705 break; 706 case IWL_UCODE_TLV_PROBE_MAX_LEN: 707 if (tlv_len != sizeof(u32)) 708 goto invalid_tlv_len; 709 capa->max_probe_length = 710 le32_to_cpup((__le32 *)tlv_data); 711 break; 712 case IWL_UCODE_TLV_PAN: 713 if (tlv_len) 714 goto invalid_tlv_len; 715 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 716 break; 717 case IWL_UCODE_TLV_FLAGS: 718 /* must be at least one u32 */ 719 if (tlv_len < sizeof(u32)) 720 goto invalid_tlv_len; 721 /* and a proper number of u32s */ 722 if (tlv_len % sizeof(u32)) 723 goto invalid_tlv_len; 724 /* 725 * This driver only reads the first u32 as 726 * right now no more features are defined, 727 * if that changes then either the driver 728 * will not work with the new firmware, or 729 * it'll not take advantage of new features. 730 */ 731 capa->flags = le32_to_cpup((__le32 *)tlv_data); 732 break; 733 case IWL_UCODE_TLV_API_CHANGES_SET: 734 if (tlv_len != sizeof(struct iwl_ucode_api)) 735 goto invalid_tlv_len; 736 iwl_set_ucode_api_flags(drv, tlv_data, capa); 737 break; 738 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 739 if (tlv_len != sizeof(struct iwl_ucode_capa)) 740 goto invalid_tlv_len; 741 iwl_set_ucode_capabilities(drv, tlv_data, capa); 742 break; 743 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 744 if (tlv_len != sizeof(u32)) 745 goto invalid_tlv_len; 746 pieces->init_evtlog_ptr = 747 le32_to_cpup((__le32 *)tlv_data); 748 break; 749 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 750 if (tlv_len != sizeof(u32)) 751 goto invalid_tlv_len; 752 pieces->init_evtlog_size = 753 le32_to_cpup((__le32 *)tlv_data); 754 break; 755 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 756 if (tlv_len != sizeof(u32)) 757 goto invalid_tlv_len; 758 pieces->init_errlog_ptr = 759 le32_to_cpup((__le32 *)tlv_data); 760 break; 761 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 762 if (tlv_len != sizeof(u32)) 763 goto invalid_tlv_len; 764 pieces->inst_evtlog_ptr = 765 le32_to_cpup((__le32 *)tlv_data); 766 break; 767 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 768 if (tlv_len != sizeof(u32)) 769 goto invalid_tlv_len; 770 pieces->inst_evtlog_size = 771 le32_to_cpup((__le32 *)tlv_data); 772 break; 773 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 774 if (tlv_len != sizeof(u32)) 775 goto invalid_tlv_len; 776 pieces->inst_errlog_ptr = 777 le32_to_cpup((__le32 *)tlv_data); 778 break; 779 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 780 if (tlv_len) 781 goto invalid_tlv_len; 782 drv->fw.enhance_sensitivity_table = true; 783 break; 784 case IWL_UCODE_TLV_WOWLAN_INST: 785 set_sec_data(pieces, IWL_UCODE_WOWLAN, 786 IWL_UCODE_SECTION_INST, tlv_data); 787 set_sec_size(pieces, IWL_UCODE_WOWLAN, 788 IWL_UCODE_SECTION_INST, tlv_len); 789 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 790 IWL_UCODE_SECTION_INST, 791 IWLAGN_RTC_INST_LOWER_BOUND); 792 break; 793 case IWL_UCODE_TLV_WOWLAN_DATA: 794 set_sec_data(pieces, IWL_UCODE_WOWLAN, 795 IWL_UCODE_SECTION_DATA, tlv_data); 796 set_sec_size(pieces, IWL_UCODE_WOWLAN, 797 IWL_UCODE_SECTION_DATA, tlv_len); 798 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 799 IWL_UCODE_SECTION_DATA, 800 IWLAGN_RTC_DATA_LOWER_BOUND); 801 break; 802 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 803 if (tlv_len != sizeof(u32)) 804 goto invalid_tlv_len; 805 capa->standard_phy_calibration_size = 806 le32_to_cpup((__le32 *)tlv_data); 807 break; 808 case IWL_UCODE_TLV_SEC_RT: 809 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 810 tlv_len); 811 drv->fw.type = IWL_FW_MVM; 812 break; 813 case IWL_UCODE_TLV_SEC_INIT: 814 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 815 tlv_len); 816 drv->fw.type = IWL_FW_MVM; 817 break; 818 case IWL_UCODE_TLV_SEC_WOWLAN: 819 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 820 tlv_len); 821 drv->fw.type = IWL_FW_MVM; 822 break; 823 case IWL_UCODE_TLV_DEF_CALIB: 824 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 825 goto invalid_tlv_len; 826 if (iwl_set_default_calib(drv, tlv_data)) 827 goto tlv_error; 828 break; 829 case IWL_UCODE_TLV_PHY_SKU: 830 if (tlv_len != sizeof(u32)) 831 goto invalid_tlv_len; 832 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); 833 drv->fw.valid_tx_ant = (drv->fw.phy_config & 834 FW_PHY_CFG_TX_CHAIN) >> 835 FW_PHY_CFG_TX_CHAIN_POS; 836 drv->fw.valid_rx_ant = (drv->fw.phy_config & 837 FW_PHY_CFG_RX_CHAIN) >> 838 FW_PHY_CFG_RX_CHAIN_POS; 839 break; 840 case IWL_UCODE_TLV_SECURE_SEC_RT: 841 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 842 tlv_len); 843 drv->fw.type = IWL_FW_MVM; 844 break; 845 case IWL_UCODE_TLV_SECURE_SEC_INIT: 846 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 847 tlv_len); 848 drv->fw.type = IWL_FW_MVM; 849 break; 850 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 851 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 852 tlv_len); 853 drv->fw.type = IWL_FW_MVM; 854 break; 855 case IWL_UCODE_TLV_NUM_OF_CPU: 856 if (tlv_len != sizeof(u32)) 857 goto invalid_tlv_len; 858 num_of_cpus = 859 le32_to_cpup((__le32 *)tlv_data); 860 861 if (num_of_cpus == 2) { 862 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 863 true; 864 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 865 true; 866 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 867 true; 868 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 869 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 870 return -EINVAL; 871 } 872 break; 873 case IWL_UCODE_TLV_CSCHEME: 874 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) 875 goto invalid_tlv_len; 876 break; 877 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 878 if (tlv_len != sizeof(u32)) 879 goto invalid_tlv_len; 880 capa->n_scan_channels = 881 le32_to_cpup((__le32 *)tlv_data); 882 break; 883 case IWL_UCODE_TLV_FW_VERSION: { 884 __le32 *ptr = (void *)tlv_data; 885 u32 major, minor; 886 u8 local_comp; 887 888 if (tlv_len != sizeof(u32) * 3) 889 goto invalid_tlv_len; 890 891 major = le32_to_cpup(ptr++); 892 minor = le32_to_cpup(ptr++); 893 local_comp = le32_to_cpup(ptr); 894 895 if (major >= 35) 896 snprintf(drv->fw.fw_version, 897 sizeof(drv->fw.fw_version), 898 "%u.%08x.%u", major, minor, local_comp); 899 else 900 snprintf(drv->fw.fw_version, 901 sizeof(drv->fw.fw_version), 902 "%u.%u.%u", major, minor, local_comp); 903 break; 904 } 905 case IWL_UCODE_TLV_FW_DBG_DEST: { 906 struct iwl_fw_dbg_dest_tlv *dest = NULL; 907 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL; 908 u8 mon_mode; 909 910 pieces->dbg_dest_ver = (u8 *)tlv_data; 911 if (*pieces->dbg_dest_ver == 1) { 912 dest = (void *)tlv_data; 913 } else if (*pieces->dbg_dest_ver == 0) { 914 dest_v1 = (void *)tlv_data; 915 } else { 916 IWL_ERR(drv, 917 "The version is %d, and it is invalid\n", 918 *pieces->dbg_dest_ver); 919 break; 920 } 921 922 if (pieces->dbg_dest_tlv_init) { 923 IWL_ERR(drv, 924 "dbg destination ignored, already exists\n"); 925 break; 926 } 927 928 pieces->dbg_dest_tlv_init = true; 929 930 if (dest_v1) { 931 pieces->dbg_dest_tlv_v1 = dest_v1; 932 mon_mode = dest_v1->monitor_mode; 933 } else { 934 pieces->dbg_dest_tlv = dest; 935 mon_mode = dest->monitor_mode; 936 } 937 938 IWL_INFO(drv, "Found debug destination: %s\n", 939 get_fw_dbg_mode_string(mon_mode)); 940 941 drv->fw.dbg.n_dest_reg = (dest_v1) ? 942 tlv_len - 943 offsetof(struct iwl_fw_dbg_dest_tlv_v1, 944 reg_ops) : 945 tlv_len - 946 offsetof(struct iwl_fw_dbg_dest_tlv, 947 reg_ops); 948 949 drv->fw.dbg.n_dest_reg /= 950 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]); 951 952 break; 953 } 954 case IWL_UCODE_TLV_FW_DBG_CONF: { 955 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; 956 957 if (!pieces->dbg_dest_tlv_init) { 958 IWL_ERR(drv, 959 "Ignore dbg config %d - no destination configured\n", 960 conf->id); 961 break; 962 } 963 964 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) { 965 IWL_ERR(drv, 966 "Skip unknown configuration: %d\n", 967 conf->id); 968 break; 969 } 970 971 if (pieces->dbg_conf_tlv[conf->id]) { 972 IWL_ERR(drv, 973 "Ignore duplicate dbg config %d\n", 974 conf->id); 975 break; 976 } 977 978 if (conf->usniffer) 979 usniffer_req = true; 980 981 IWL_INFO(drv, "Found debug configuration: %d\n", 982 conf->id); 983 984 pieces->dbg_conf_tlv[conf->id] = conf; 985 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 986 break; 987 } 988 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 989 struct iwl_fw_dbg_trigger_tlv *trigger = 990 (void *)tlv_data; 991 u32 trigger_id = le32_to_cpu(trigger->id); 992 993 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) { 994 IWL_ERR(drv, 995 "Skip unknown trigger: %u\n", 996 trigger->id); 997 break; 998 } 999 1000 if (pieces->dbg_trigger_tlv[trigger_id]) { 1001 IWL_ERR(drv, 1002 "Ignore duplicate dbg trigger %u\n", 1003 trigger->id); 1004 break; 1005 } 1006 1007 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 1008 1009 pieces->dbg_trigger_tlv[trigger_id] = trigger; 1010 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 1011 break; 1012 } 1013 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: { 1014 if (tlv_len != sizeof(u32)) { 1015 IWL_ERR(drv, 1016 "dbg lst mask size incorrect, skip\n"); 1017 break; 1018 } 1019 1020 drv->fw.dbg.dump_mask = 1021 le32_to_cpup((__le32 *)tlv_data); 1022 break; 1023 } 1024 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 1025 *usniffer_images = true; 1026 iwl_store_ucode_sec(pieces, tlv_data, 1027 IWL_UCODE_REGULAR_USNIFFER, 1028 tlv_len); 1029 break; 1030 case IWL_UCODE_TLV_PAGING: 1031 if (tlv_len != sizeof(u32)) 1032 goto invalid_tlv_len; 1033 paging_mem_size = le32_to_cpup((__le32 *)tlv_data); 1034 1035 IWL_DEBUG_FW(drv, 1036 "Paging: paging enabled (size = %u bytes)\n", 1037 paging_mem_size); 1038 1039 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 1040 IWL_ERR(drv, 1041 "Paging: driver supports up to %lu bytes for paging image\n", 1042 MAX_PAGING_IMAGE_SIZE); 1043 return -EINVAL; 1044 } 1045 1046 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1047 IWL_ERR(drv, 1048 "Paging: image isn't multiple %lu\n", 1049 FW_PAGING_SIZE); 1050 return -EINVAL; 1051 } 1052 1053 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1054 paging_mem_size; 1055 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1056 drv->fw.img[usniffer_img].paging_mem_size = 1057 paging_mem_size; 1058 break; 1059 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1060 /* ignored */ 1061 break; 1062 case IWL_UCODE_TLV_FW_MEM_SEG: { 1063 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = 1064 (void *)tlv_data; 1065 size_t size; 1066 struct iwl_fw_dbg_mem_seg_tlv *n; 1067 1068 if (tlv_len != (sizeof(*dbg_mem))) 1069 goto invalid_tlv_len; 1070 1071 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", 1072 dbg_mem->data_type); 1073 1074 size = sizeof(*pieces->dbg_mem_tlv) * 1075 (pieces->n_mem_tlv + 1); 1076 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL); 1077 if (!n) 1078 return -ENOMEM; 1079 pieces->dbg_mem_tlv = n; 1080 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem; 1081 pieces->n_mem_tlv++; 1082 break; 1083 } 1084 case IWL_UCODE_TLV_IML: { 1085 drv->fw.iml_len = tlv_len; 1086 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1087 if (!drv->fw.iml) 1088 return -ENOMEM; 1089 break; 1090 } 1091 case IWL_UCODE_TLV_FW_RECOVERY_INFO: { 1092 struct { 1093 __le32 buf_addr; 1094 __le32 buf_size; 1095 } *recov_info = (void *)tlv_data; 1096 1097 if (tlv_len != sizeof(*recov_info)) 1098 goto invalid_tlv_len; 1099 capa->error_log_addr = 1100 le32_to_cpu(recov_info->buf_addr); 1101 capa->error_log_size = 1102 le32_to_cpu(recov_info->buf_size); 1103 } 1104 break; 1105 case IWL_UCODE_TLV_FW_FSEQ_VERSION: { 1106 struct { 1107 u8 version[32]; 1108 u8 sha1[20]; 1109 } *fseq_ver = (void *)tlv_data; 1110 1111 if (tlv_len != sizeof(*fseq_ver)) 1112 goto invalid_tlv_len; 1113 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n", 1114 fseq_ver->version); 1115 } 1116 break; 1117 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: { 1118 struct iwl_umac_debug_addrs *dbg_ptrs = 1119 (void *)tlv_data; 1120 1121 if (tlv_len != sizeof(*dbg_ptrs)) 1122 goto invalid_tlv_len; 1123 if (drv->trans->trans_cfg->device_family < 1124 IWL_DEVICE_FAMILY_22000) 1125 break; 1126 drv->trans->dbg.umac_error_event_table = 1127 le32_to_cpu(dbg_ptrs->error_info_addr) & 1128 ~FW_ADDR_CACHE_CONTROL; 1129 drv->trans->dbg.error_event_table_tlv_status |= 1130 IWL_ERROR_EVENT_TABLE_UMAC; 1131 break; 1132 } 1133 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: { 1134 struct iwl_lmac_debug_addrs *dbg_ptrs = 1135 (void *)tlv_data; 1136 1137 if (tlv_len != sizeof(*dbg_ptrs)) 1138 goto invalid_tlv_len; 1139 if (drv->trans->trans_cfg->device_family < 1140 IWL_DEVICE_FAMILY_22000) 1141 break; 1142 drv->trans->dbg.lmac_error_event_table[0] = 1143 le32_to_cpu(dbg_ptrs->error_event_table_ptr) & 1144 ~FW_ADDR_CACHE_CONTROL; 1145 drv->trans->dbg.error_event_table_tlv_status |= 1146 IWL_ERROR_EVENT_TABLE_LMAC1; 1147 break; 1148 } 1149 case IWL_UCODE_TLV_TYPE_DEBUG_INFO: 1150 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION: 1151 case IWL_UCODE_TLV_TYPE_HCMD: 1152 case IWL_UCODE_TLV_TYPE_REGIONS: 1153 case IWL_UCODE_TLV_TYPE_TRIGGERS: 1154 if (iwlwifi_mod_params.enable_ini) 1155 iwl_dbg_tlv_alloc(drv->trans, tlv, false); 1156 break; 1157 case IWL_UCODE_TLV_CMD_VERSIONS: 1158 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) { 1159 IWL_ERR(drv, 1160 "Invalid length for command versions: %u\n", 1161 tlv_len); 1162 tlv_len /= sizeof(struct iwl_fw_cmd_version); 1163 tlv_len *= sizeof(struct iwl_fw_cmd_version); 1164 } 1165 if (WARN_ON(capa->cmd_versions)) 1166 return -EINVAL; 1167 capa->cmd_versions = kmemdup(tlv_data, tlv_len, 1168 GFP_KERNEL); 1169 if (!capa->cmd_versions) 1170 return -ENOMEM; 1171 capa->n_cmd_versions = 1172 tlv_len / sizeof(struct iwl_fw_cmd_version); 1173 break; 1174 default: 1175 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1176 break; 1177 } 1178 } 1179 1180 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 1181 usniffer_req && !*usniffer_images) { 1182 IWL_ERR(drv, 1183 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1184 return -EINVAL; 1185 } 1186 1187 if (len) { 1188 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1189 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); 1190 return -EINVAL; 1191 } 1192 1193 return 0; 1194 1195 invalid_tlv_len: 1196 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1197 tlv_error: 1198 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1199 1200 return -EINVAL; 1201 } 1202 1203 static int iwl_alloc_ucode(struct iwl_drv *drv, 1204 struct iwl_firmware_pieces *pieces, 1205 enum iwl_ucode_type type) 1206 { 1207 int i; 1208 struct fw_desc *sec; 1209 1210 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL); 1211 if (!sec) 1212 return -ENOMEM; 1213 drv->fw.img[type].sec = sec; 1214 drv->fw.img[type].num_sec = pieces->img[type].sec_counter; 1215 1216 for (i = 0; i < pieces->img[type].sec_counter; i++) 1217 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i))) 1218 return -ENOMEM; 1219 1220 return 0; 1221 } 1222 1223 static int validate_sec_sizes(struct iwl_drv *drv, 1224 struct iwl_firmware_pieces *pieces, 1225 const struct iwl_cfg *cfg) 1226 { 1227 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n", 1228 get_sec_size(pieces, IWL_UCODE_REGULAR, 1229 IWL_UCODE_SECTION_INST)); 1230 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n", 1231 get_sec_size(pieces, IWL_UCODE_REGULAR, 1232 IWL_UCODE_SECTION_DATA)); 1233 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n", 1234 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1235 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n", 1236 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1237 1238 /* Verify that uCode images will fit in card's SRAM. */ 1239 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1240 cfg->max_inst_size) { 1241 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n", 1242 get_sec_size(pieces, IWL_UCODE_REGULAR, 1243 IWL_UCODE_SECTION_INST)); 1244 return -1; 1245 } 1246 1247 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1248 cfg->max_data_size) { 1249 IWL_ERR(drv, "uCode data len %zd too large to fit in\n", 1250 get_sec_size(pieces, IWL_UCODE_REGULAR, 1251 IWL_UCODE_SECTION_DATA)); 1252 return -1; 1253 } 1254 1255 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1256 cfg->max_inst_size) { 1257 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n", 1258 get_sec_size(pieces, IWL_UCODE_INIT, 1259 IWL_UCODE_SECTION_INST)); 1260 return -1; 1261 } 1262 1263 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1264 cfg->max_data_size) { 1265 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n", 1266 get_sec_size(pieces, IWL_UCODE_REGULAR, 1267 IWL_UCODE_SECTION_DATA)); 1268 return -1; 1269 } 1270 return 0; 1271 } 1272 1273 static struct iwl_op_mode * 1274 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1275 { 1276 const struct iwl_op_mode_ops *ops = op->ops; 1277 struct dentry *dbgfs_dir = NULL; 1278 struct iwl_op_mode *op_mode = NULL; 1279 1280 #ifdef CONFIG_IWLWIFI_DEBUGFS 1281 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1282 drv->dbgfs_drv); 1283 dbgfs_dir = drv->dbgfs_op_mode; 1284 #endif 1285 1286 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir); 1287 1288 #ifdef CONFIG_IWLWIFI_DEBUGFS 1289 if (!op_mode) { 1290 debugfs_remove_recursive(drv->dbgfs_op_mode); 1291 drv->dbgfs_op_mode = NULL; 1292 } 1293 #endif 1294 1295 return op_mode; 1296 } 1297 1298 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1299 { 1300 /* op_mode can be NULL if its start failed */ 1301 if (drv->op_mode) { 1302 iwl_op_mode_stop(drv->op_mode); 1303 drv->op_mode = NULL; 1304 1305 #ifdef CONFIG_IWLWIFI_DEBUGFS 1306 debugfs_remove_recursive(drv->dbgfs_op_mode); 1307 drv->dbgfs_op_mode = NULL; 1308 #endif 1309 } 1310 } 1311 1312 /** 1313 * iwl_req_fw_callback - callback when firmware was loaded 1314 * 1315 * If loaded successfully, copies the firmware into buffers 1316 * for the card to fetch (via DMA). 1317 */ 1318 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1319 { 1320 struct iwl_drv *drv = context; 1321 struct iwl_fw *fw = &drv->fw; 1322 struct iwl_ucode_header *ucode; 1323 struct iwlwifi_opmode_table *op; 1324 int err; 1325 struct iwl_firmware_pieces *pieces; 1326 const unsigned int api_max = drv->trans->cfg->ucode_api_max; 1327 const unsigned int api_min = drv->trans->cfg->ucode_api_min; 1328 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1329 u32 api_ver; 1330 int i; 1331 bool load_module = false; 1332 bool usniffer_images = false; 1333 1334 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1335 fw->ucode_capa.standard_phy_calibration_size = 1336 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1337 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1338 /* dump all fw memory areas by default */ 1339 fw->dbg.dump_mask = 0xffffffff; 1340 1341 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1342 if (!pieces) 1343 goto out_free_fw; 1344 1345 if (!ucode_raw) 1346 goto try_again; 1347 1348 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1349 drv->firmware_name, ucode_raw->size); 1350 1351 /* Make sure that we got at least the API version number */ 1352 if (ucode_raw->size < 4) { 1353 IWL_ERR(drv, "File size way too small!\n"); 1354 goto try_again; 1355 } 1356 1357 /* Data from ucode file: header followed by uCode images */ 1358 ucode = (struct iwl_ucode_header *)ucode_raw->data; 1359 1360 if (ucode->ver) 1361 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1362 else 1363 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1364 &fw->ucode_capa, &usniffer_images); 1365 1366 if (err) 1367 goto try_again; 1368 1369 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1370 api_ver = drv->fw.ucode_ver; 1371 else 1372 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1373 1374 /* 1375 * api_ver should match the api version forming part of the 1376 * firmware filename ... but we don't check for that and only rely 1377 * on the API version read from firmware header from here on forward 1378 */ 1379 if (api_ver < api_min || api_ver > api_max) { 1380 IWL_ERR(drv, 1381 "Driver unable to support your firmware API. " 1382 "Driver supports v%u, firmware is v%u.\n", 1383 api_max, api_ver); 1384 goto try_again; 1385 } 1386 1387 /* 1388 * In mvm uCode there is no difference between data and instructions 1389 * sections. 1390 */ 1391 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, 1392 drv->trans->cfg)) 1393 goto try_again; 1394 1395 /* Allocate ucode buffers for card's bus-master loading ... */ 1396 1397 /* Runtime instructions and 2 copies of data: 1398 * 1) unmodified from disk 1399 * 2) backup cache for save/restore during power-downs 1400 */ 1401 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1402 if (iwl_alloc_ucode(drv, pieces, i)) 1403 goto out_free_fw; 1404 1405 if (pieces->dbg_dest_tlv_init) { 1406 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) + 1407 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1408 drv->fw.dbg.n_dest_reg; 1409 1410 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL); 1411 1412 if (!drv->fw.dbg.dest_tlv) 1413 goto out_free_fw; 1414 1415 if (*pieces->dbg_dest_ver == 0) { 1416 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1, 1417 dbg_dest_size); 1418 } else { 1419 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv = 1420 drv->fw.dbg.dest_tlv; 1421 1422 dest_tlv->version = pieces->dbg_dest_tlv->version; 1423 dest_tlv->monitor_mode = 1424 pieces->dbg_dest_tlv->monitor_mode; 1425 dest_tlv->size_power = 1426 pieces->dbg_dest_tlv->size_power; 1427 dest_tlv->wrap_count = 1428 pieces->dbg_dest_tlv->wrap_count; 1429 dest_tlv->write_ptr_reg = 1430 pieces->dbg_dest_tlv->write_ptr_reg; 1431 dest_tlv->base_shift = 1432 pieces->dbg_dest_tlv->base_shift; 1433 memcpy(dest_tlv->reg_ops, 1434 pieces->dbg_dest_tlv->reg_ops, 1435 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1436 drv->fw.dbg.n_dest_reg); 1437 1438 /* In version 1 of the destination tlv, which is 1439 * relevant for internal buffer exclusively, 1440 * the base address is part of given with the length 1441 * of the buffer, and the size shift is give instead of 1442 * end shift. We now store these values in base_reg, 1443 * and end shift, and when dumping the data we'll 1444 * manipulate it for extracting both the length and 1445 * base address */ 1446 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg; 1447 dest_tlv->end_shift = 1448 pieces->dbg_dest_tlv->size_shift; 1449 } 1450 } 1451 1452 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) { 1453 if (pieces->dbg_conf_tlv[i]) { 1454 drv->fw.dbg.conf_tlv[i] = 1455 kmemdup(pieces->dbg_conf_tlv[i], 1456 pieces->dbg_conf_tlv_len[i], 1457 GFP_KERNEL); 1458 if (!pieces->dbg_conf_tlv_len[i]) 1459 goto out_free_fw; 1460 } 1461 } 1462 1463 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1464 1465 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1466 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1467 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1468 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1469 sizeof(struct iwl_fw_dbg_trigger_cmd); 1470 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1471 sizeof(struct iwl_fw_dbg_trigger_mlme); 1472 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1473 sizeof(struct iwl_fw_dbg_trigger_stats); 1474 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1475 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1476 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1477 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1478 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1479 sizeof(struct iwl_fw_dbg_trigger_time_event); 1480 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1481 sizeof(struct iwl_fw_dbg_trigger_ba); 1482 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1483 sizeof(struct iwl_fw_dbg_trigger_tdls); 1484 1485 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) { 1486 if (pieces->dbg_trigger_tlv[i]) { 1487 /* 1488 * If the trigger isn't long enough, WARN and exit. 1489 * Someone is trying to debug something and he won't 1490 * be able to catch the bug he is trying to chase. 1491 * We'd better be noisy to be sure he knows what's 1492 * going on. 1493 */ 1494 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1495 (trigger_tlv_sz[i] + 1496 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1497 goto out_free_fw; 1498 drv->fw.dbg.trigger_tlv_len[i] = 1499 pieces->dbg_trigger_tlv_len[i]; 1500 drv->fw.dbg.trigger_tlv[i] = 1501 kmemdup(pieces->dbg_trigger_tlv[i], 1502 drv->fw.dbg.trigger_tlv_len[i], 1503 GFP_KERNEL); 1504 if (!drv->fw.dbg.trigger_tlv[i]) 1505 goto out_free_fw; 1506 } 1507 } 1508 1509 /* Now that we can no longer fail, copy information */ 1510 1511 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv; 1512 pieces->dbg_mem_tlv = NULL; 1513 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv; 1514 1515 /* 1516 * The (size - 16) / 12 formula is based on the information recorded 1517 * for each event, which is of mode 1 (including timestamp) for all 1518 * new microcodes that include this information. 1519 */ 1520 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1521 if (pieces->init_evtlog_size) 1522 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1523 else 1524 fw->init_evtlog_size = 1525 drv->trans->trans_cfg->base_params->max_event_log_size; 1526 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1527 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1528 if (pieces->inst_evtlog_size) 1529 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1530 else 1531 fw->inst_evtlog_size = 1532 drv->trans->trans_cfg->base_params->max_event_log_size; 1533 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1534 1535 /* 1536 * figure out the offset of chain noise reset and gain commands 1537 * base on the size of standard phy calibration commands table size 1538 */ 1539 if (fw->ucode_capa.standard_phy_calibration_size > 1540 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1541 fw->ucode_capa.standard_phy_calibration_size = 1542 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1543 1544 /* We have our copies now, allow OS release its copies */ 1545 release_firmware(ucode_raw); 1546 1547 mutex_lock(&iwlwifi_opmode_table_mtx); 1548 switch (fw->type) { 1549 case IWL_FW_DVM: 1550 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1551 break; 1552 default: 1553 WARN(1, "Invalid fw type %d\n", fw->type); 1554 /* fall through */ 1555 case IWL_FW_MVM: 1556 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1557 break; 1558 } 1559 1560 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1561 drv->fw.fw_version, op->name); 1562 1563 /* add this device to the list of devices using this op_mode */ 1564 list_add_tail(&drv->list, &op->drv); 1565 1566 if (op->ops) { 1567 drv->op_mode = _iwl_op_mode_start(drv, op); 1568 1569 if (!drv->op_mode) { 1570 mutex_unlock(&iwlwifi_opmode_table_mtx); 1571 goto out_unbind; 1572 } 1573 } else { 1574 load_module = true; 1575 } 1576 mutex_unlock(&iwlwifi_opmode_table_mtx); 1577 1578 /* 1579 * Complete the firmware request last so that 1580 * a driver unbind (stop) doesn't run while we 1581 * are doing the start() above. 1582 */ 1583 complete(&drv->request_firmware_complete); 1584 1585 /* 1586 * Load the module last so we don't block anything 1587 * else from proceeding if the module fails to load 1588 * or hangs loading. 1589 */ 1590 if (load_module) { 1591 request_module("%s", op->name); 1592 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR 1593 if (err) 1594 IWL_ERR(drv, 1595 "failed to load module %s (error %d), is dynamic loading enabled?\n", 1596 op->name, err); 1597 #endif 1598 } 1599 goto free; 1600 1601 try_again: 1602 /* try next, if any */ 1603 release_firmware(ucode_raw); 1604 if (iwl_request_firmware(drv, false)) 1605 goto out_unbind; 1606 goto free; 1607 1608 out_free_fw: 1609 release_firmware(ucode_raw); 1610 out_unbind: 1611 complete(&drv->request_firmware_complete); 1612 device_release_driver(drv->trans->dev); 1613 free: 1614 if (pieces) { 1615 for (i = 0; i < ARRAY_SIZE(pieces->img); i++) 1616 kfree(pieces->img[i].sec); 1617 kfree(pieces->dbg_mem_tlv); 1618 kfree(pieces); 1619 } 1620 } 1621 1622 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans) 1623 { 1624 struct iwl_drv *drv; 1625 int ret; 1626 1627 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1628 if (!drv) { 1629 ret = -ENOMEM; 1630 goto err; 1631 } 1632 1633 drv->trans = trans; 1634 drv->dev = trans->dev; 1635 1636 init_completion(&drv->request_firmware_complete); 1637 INIT_LIST_HEAD(&drv->list); 1638 1639 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans); 1640 1641 #ifdef CONFIG_IWLWIFI_DEBUGFS 1642 /* Create the device debugfs entries. */ 1643 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1644 iwl_dbgfs_root); 1645 1646 /* Create transport layer debugfs dir */ 1647 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1648 #endif 1649 1650 ret = iwl_request_firmware(drv, true); 1651 if (ret) { 1652 IWL_ERR(trans, "Couldn't request the fw\n"); 1653 goto err_fw; 1654 } 1655 1656 return drv; 1657 1658 err_fw: 1659 #ifdef CONFIG_IWLWIFI_DEBUGFS 1660 debugfs_remove_recursive(drv->dbgfs_drv); 1661 iwl_dbg_tlv_free(drv->trans); 1662 #endif 1663 kfree(drv); 1664 err: 1665 return ERR_PTR(ret); 1666 } 1667 1668 void iwl_drv_stop(struct iwl_drv *drv) 1669 { 1670 wait_for_completion(&drv->request_firmware_complete); 1671 1672 _iwl_op_mode_stop(drv); 1673 1674 iwl_dealloc_ucode(drv); 1675 1676 mutex_lock(&iwlwifi_opmode_table_mtx); 1677 /* 1678 * List is empty (this item wasn't added) 1679 * when firmware loading failed -- in that 1680 * case we can't remove it from any list. 1681 */ 1682 if (!list_empty(&drv->list)) 1683 list_del(&drv->list); 1684 mutex_unlock(&iwlwifi_opmode_table_mtx); 1685 1686 #ifdef CONFIG_IWLWIFI_DEBUGFS 1687 drv->trans->ops->debugfs_cleanup(drv->trans); 1688 1689 debugfs_remove_recursive(drv->dbgfs_drv); 1690 #endif 1691 1692 iwl_dbg_tlv_free(drv->trans); 1693 1694 kfree(drv); 1695 } 1696 1697 1698 /* shared module parameters */ 1699 struct iwl_mod_params iwlwifi_mod_params = { 1700 .fw_restart = true, 1701 .bt_coex_active = true, 1702 .power_level = IWL_POWER_INDEX_1, 1703 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, 1704 /* the rest are 0 by default */ 1705 }; 1706 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1707 1708 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1709 { 1710 int i; 1711 struct iwl_drv *drv; 1712 struct iwlwifi_opmode_table *op; 1713 1714 mutex_lock(&iwlwifi_opmode_table_mtx); 1715 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1716 op = &iwlwifi_opmode_table[i]; 1717 if (strcmp(op->name, name)) 1718 continue; 1719 op->ops = ops; 1720 /* TODO: need to handle exceptional case */ 1721 list_for_each_entry(drv, &op->drv, list) 1722 drv->op_mode = _iwl_op_mode_start(drv, op); 1723 1724 mutex_unlock(&iwlwifi_opmode_table_mtx); 1725 return 0; 1726 } 1727 mutex_unlock(&iwlwifi_opmode_table_mtx); 1728 return -EIO; 1729 } 1730 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1731 1732 void iwl_opmode_deregister(const char *name) 1733 { 1734 int i; 1735 struct iwl_drv *drv; 1736 1737 mutex_lock(&iwlwifi_opmode_table_mtx); 1738 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1739 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1740 continue; 1741 iwlwifi_opmode_table[i].ops = NULL; 1742 1743 /* call the stop routine for all devices */ 1744 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1745 _iwl_op_mode_stop(drv); 1746 1747 mutex_unlock(&iwlwifi_opmode_table_mtx); 1748 return; 1749 } 1750 mutex_unlock(&iwlwifi_opmode_table_mtx); 1751 } 1752 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1753 1754 static int __init iwl_drv_init(void) 1755 { 1756 int i, err; 1757 1758 mutex_init(&iwlwifi_opmode_table_mtx); 1759 1760 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1761 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1762 1763 pr_info(DRV_DESCRIPTION "\n"); 1764 pr_info(DRV_COPYRIGHT "\n"); 1765 1766 #ifdef CONFIG_IWLWIFI_DEBUGFS 1767 /* Create the root of iwlwifi debugfs subsystem. */ 1768 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1769 #endif 1770 1771 err = iwl_pci_register_driver(); 1772 if (err) 1773 goto cleanup_debugfs; 1774 1775 return 0; 1776 1777 cleanup_debugfs: 1778 #ifdef CONFIG_IWLWIFI_DEBUGFS 1779 debugfs_remove_recursive(iwl_dbgfs_root); 1780 #endif 1781 return err; 1782 } 1783 module_init(iwl_drv_init); 1784 1785 static void __exit iwl_drv_exit(void) 1786 { 1787 iwl_pci_unregister_driver(); 1788 1789 #ifdef CONFIG_IWLWIFI_DEBUGFS 1790 debugfs_remove_recursive(iwl_dbgfs_root); 1791 #endif 1792 } 1793 module_exit(iwl_drv_exit); 1794 1795 #ifdef CONFIG_IWLWIFI_DEBUG 1796 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644); 1797 MODULE_PARM_DESC(debug, "debug output mask"); 1798 #endif 1799 1800 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444); 1801 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1802 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444); 1803 MODULE_PARM_DESC(11n_disable, 1804 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1805 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444); 1806 MODULE_PARM_DESC(amsdu_size, 1807 "amsdu size 0: 12K for multi Rx queue devices, 2K for 22560 devices, " 1808 "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)"); 1809 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444); 1810 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1811 1812 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling, 1813 int, 0444); 1814 MODULE_PARM_DESC(antenna_coupling, 1815 "specify antenna coupling in dB (default: 0 dB)"); 1816 1817 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444); 1818 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1819 1820 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444); 1821 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)"); 1822 1823 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644); 1824 MODULE_PARM_DESC(uapsd_disable, 1825 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); 1826 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, 1827 bool, S_IRUGO | S_IWUSR); 1828 MODULE_PARM_DESC(enable_ini, 1829 "Enable debug INI TLV FW debug infrastructure (default: 0"); 1830 1831 /* 1832 * set bt_coex_active to true, uCode will do kill/defer 1833 * every time the priority line is asserted (BT is sending signals on the 1834 * priority line in the PCIx). 1835 * set bt_coex_active to false, uCode will ignore the BT activity and 1836 * perform the normal operation 1837 * 1838 * User might experience transmit issue on some platform due to WiFi/BT 1839 * co-exist problem. The possible behaviors are: 1840 * Able to scan and finding all the available AP 1841 * Not able to associate with any AP 1842 * On those platforms, WiFi communication can be restored by set 1843 * "bt_coex_active" module parameter to "false" 1844 * 1845 * default: bt_coex_active = true (BT_COEX_ENABLE) 1846 */ 1847 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1848 bool, 0444); 1849 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1850 1851 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444); 1852 MODULE_PARM_DESC(led_mode, "0=system default, " 1853 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1854 1855 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444); 1856 MODULE_PARM_DESC(power_save, 1857 "enable WiFi power management (default: disable)"); 1858 1859 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444); 1860 MODULE_PARM_DESC(power_level, 1861 "default power save level (range from 1 - 5, default: 1)"); 1862 1863 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444); 1864 MODULE_PARM_DESC(fw_monitor, 1865 "firmware monitor - to debug FW (default: false - needs lots of memory)"); 1866 1867 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444); 1868 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)"); 1869 1870 module_param_named(remove_when_gone, 1871 iwlwifi_mod_params.remove_when_gone, bool, 1872 0444); 1873 MODULE_PARM_DESC(remove_when_gone, 1874 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)"); 1875 1876 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool, 1877 S_IRUGO); 1878 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)"); 1879