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, 2018 - 2020 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 * 28 * BSD LICENSE 29 * 30 * Copyright(c) 2005 - 2014, 2018 - 2020 Intel Corporation. All rights reserved. 31 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 32 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * * Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * * Neither the name Intel Corporation nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 * 61 *****************************************************************************/ 62 #include <linux/completion.h> 63 #include <linux/dma-mapping.h> 64 #include <linux/firmware.h> 65 #include <linux/module.h> 66 #include <linux/vmalloc.h> 67 68 #include "iwl-drv.h" 69 #include "iwl-csr.h" 70 #include "iwl-debug.h" 71 #include "iwl-trans.h" 72 #include "iwl-op-mode.h" 73 #include "iwl-agn-hw.h" 74 #include "fw/img.h" 75 #include "iwl-dbg-tlv.h" 76 #include "iwl-config.h" 77 #include "iwl-modparams.h" 78 #include "fw/api/alive.h" 79 80 /****************************************************************************** 81 * 82 * module boiler plate 83 * 84 ******************************************************************************/ 85 86 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" 87 MODULE_DESCRIPTION(DRV_DESCRIPTION); 88 MODULE_AUTHOR(DRV_AUTHOR); 89 MODULE_LICENSE("GPL"); 90 91 #ifdef CONFIG_IWLWIFI_DEBUGFS 92 static struct dentry *iwl_dbgfs_root; 93 #endif 94 95 /** 96 * struct iwl_drv - drv common data 97 * @list: list of drv structures using this opmode 98 * @fw: the iwl_fw structure 99 * @op_mode: the running op_mode 100 * @trans: transport layer 101 * @dev: for debug prints only 102 * @fw_index: firmware revision to try loading 103 * @firmware_name: composite filename of ucode file to load 104 * @request_firmware_complete: the firmware has been obtained from user space 105 */ 106 struct iwl_drv { 107 struct list_head list; 108 struct iwl_fw fw; 109 110 struct iwl_op_mode *op_mode; 111 struct iwl_trans *trans; 112 struct device *dev; 113 114 int fw_index; /* firmware we're trying to load */ 115 char firmware_name[64]; /* name of firmware file to load */ 116 117 struct completion request_firmware_complete; 118 119 #ifdef CONFIG_IWLWIFI_DEBUGFS 120 struct dentry *dbgfs_drv; 121 struct dentry *dbgfs_trans; 122 struct dentry *dbgfs_op_mode; 123 #endif 124 }; 125 126 enum { 127 DVM_OP_MODE, 128 MVM_OP_MODE, 129 }; 130 131 /* Protects the table contents, i.e. the ops pointer & drv list */ 132 static struct mutex iwlwifi_opmode_table_mtx; 133 static struct iwlwifi_opmode_table { 134 const char *name; /* name: iwldvm, iwlmvm, etc */ 135 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ 136 struct list_head drv; /* list of devices using this op_mode */ 137 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ 138 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL }, 139 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL }, 140 }; 141 142 #define IWL_DEFAULT_SCAN_CHANNELS 40 143 144 /* 145 * struct fw_sec: Just for the image parsing process. 146 * For the fw storage we are using struct fw_desc. 147 */ 148 struct fw_sec { 149 const void *data; /* the sec data */ 150 size_t size; /* section size */ 151 u32 offset; /* offset of writing in the device */ 152 }; 153 154 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) 155 { 156 vfree(desc->data); 157 desc->data = NULL; 158 desc->len = 0; 159 } 160 161 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) 162 { 163 int i; 164 for (i = 0; i < img->num_sec; i++) 165 iwl_free_fw_desc(drv, &img->sec[i]); 166 kfree(img->sec); 167 } 168 169 static void iwl_dealloc_ucode(struct iwl_drv *drv) 170 { 171 int i; 172 173 kfree(drv->fw.dbg.dest_tlv); 174 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) 175 kfree(drv->fw.dbg.conf_tlv[i]); 176 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) 177 kfree(drv->fw.dbg.trigger_tlv[i]); 178 kfree(drv->fw.dbg.mem_tlv); 179 kfree(drv->fw.iml); 180 kfree(drv->fw.ucode_capa.cmd_versions); 181 182 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 183 iwl_free_fw_img(drv, drv->fw.img + i); 184 } 185 186 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, 187 struct fw_sec *sec) 188 { 189 void *data; 190 191 desc->data = NULL; 192 193 if (!sec || !sec->size) 194 return -EINVAL; 195 196 data = vmalloc(sec->size); 197 if (!data) 198 return -ENOMEM; 199 200 desc->len = sec->size; 201 desc->offset = sec->offset; 202 memcpy(data, sec->data, desc->len); 203 desc->data = data; 204 205 return 0; 206 } 207 208 static void iwl_req_fw_callback(const struct firmware *ucode_raw, 209 void *context); 210 211 static int iwl_request_firmware(struct iwl_drv *drv, bool first) 212 { 213 const struct iwl_cfg *cfg = drv->trans->cfg; 214 char tag[8]; 215 216 if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 && 217 (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP && 218 CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) { 219 IWL_ERR(drv, 220 "Only HW steps B and C are currently supported (0x%0x)\n", 221 drv->trans->hw_rev); 222 return -EINVAL; 223 } 224 225 if (first) { 226 drv->fw_index = cfg->ucode_api_max; 227 sprintf(tag, "%d", drv->fw_index); 228 } else { 229 drv->fw_index--; 230 sprintf(tag, "%d", drv->fw_index); 231 } 232 233 if (drv->fw_index < cfg->ucode_api_min) { 234 IWL_ERR(drv, "no suitable firmware found!\n"); 235 236 if (cfg->ucode_api_min == cfg->ucode_api_max) { 237 IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre, 238 cfg->ucode_api_max); 239 } else { 240 IWL_ERR(drv, "minimum version required: %s%d\n", 241 cfg->fw_name_pre, cfg->ucode_api_min); 242 IWL_ERR(drv, "maximum version supported: %s%d\n", 243 cfg->fw_name_pre, cfg->ucode_api_max); 244 } 245 246 IWL_ERR(drv, 247 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n"); 248 return -ENOENT; 249 } 250 251 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", 252 cfg->fw_name_pre, tag); 253 254 IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n", 255 drv->firmware_name); 256 257 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 258 drv->trans->dev, 259 GFP_KERNEL, drv, iwl_req_fw_callback); 260 } 261 262 struct fw_img_parsing { 263 struct fw_sec *sec; 264 int sec_counter; 265 }; 266 267 /* 268 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 269 */ 270 struct fw_sec_parsing { 271 __le32 offset; 272 const u8 data[]; 273 } __packed; 274 275 /** 276 * struct iwl_tlv_calib_data - parse the default calib data from TLV 277 * 278 * @ucode_type: the uCode to which the following default calib relates. 279 * @calib: default calibrations. 280 */ 281 struct iwl_tlv_calib_data { 282 __le32 ucode_type; 283 struct iwl_tlv_calib_ctrl calib; 284 } __packed; 285 286 struct iwl_firmware_pieces { 287 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 288 289 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 290 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 291 292 /* FW debug data parsed for driver usage */ 293 bool dbg_dest_tlv_init; 294 u8 *dbg_dest_ver; 295 union { 296 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 297 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1; 298 }; 299 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 300 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 301 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 302 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 303 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv; 304 size_t n_mem_tlv; 305 }; 306 307 /* 308 * These functions are just to extract uCode section data from the pieces 309 * structure. 310 */ 311 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 312 enum iwl_ucode_type type, 313 int sec) 314 { 315 return &pieces->img[type].sec[sec]; 316 } 317 318 static void alloc_sec_data(struct iwl_firmware_pieces *pieces, 319 enum iwl_ucode_type type, 320 int sec) 321 { 322 struct fw_img_parsing *img = &pieces->img[type]; 323 struct fw_sec *sec_memory; 324 int size = sec + 1; 325 size_t alloc_size = sizeof(*img->sec) * size; 326 327 if (img->sec && img->sec_counter >= size) 328 return; 329 330 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL); 331 if (!sec_memory) 332 return; 333 334 img->sec = sec_memory; 335 img->sec_counter = size; 336 } 337 338 static void set_sec_data(struct iwl_firmware_pieces *pieces, 339 enum iwl_ucode_type type, 340 int sec, 341 const void *data) 342 { 343 alloc_sec_data(pieces, type, sec); 344 345 pieces->img[type].sec[sec].data = data; 346 } 347 348 static void set_sec_size(struct iwl_firmware_pieces *pieces, 349 enum iwl_ucode_type type, 350 int sec, 351 size_t size) 352 { 353 alloc_sec_data(pieces, type, sec); 354 355 pieces->img[type].sec[sec].size = size; 356 } 357 358 static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 359 enum iwl_ucode_type type, 360 int sec) 361 { 362 return pieces->img[type].sec[sec].size; 363 } 364 365 static void set_sec_offset(struct iwl_firmware_pieces *pieces, 366 enum iwl_ucode_type type, 367 int sec, 368 u32 offset) 369 { 370 alloc_sec_data(pieces, type, sec); 371 372 pieces->img[type].sec[sec].offset = offset; 373 } 374 375 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) 376 { 377 int i, j; 378 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; 379 struct iwl_fw_cipher_scheme *fwcs; 380 381 if (len < sizeof(*l) || 382 len < sizeof(l->size) + l->size * sizeof(l->cs[0])) 383 return -EINVAL; 384 385 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { 386 fwcs = &l->cs[j]; 387 388 /* we skip schemes with zero cipher suite selector */ 389 if (!fwcs->cipher) 390 continue; 391 392 fw->cs[j++] = *fwcs; 393 } 394 395 return 0; 396 } 397 398 /* 399 * Gets uCode section from tlv. 400 */ 401 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 402 const void *data, enum iwl_ucode_type type, 403 int size) 404 { 405 struct fw_img_parsing *img; 406 struct fw_sec *sec; 407 struct fw_sec_parsing *sec_parse; 408 size_t alloc_size; 409 410 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 411 return -1; 412 413 sec_parse = (struct fw_sec_parsing *)data; 414 415 img = &pieces->img[type]; 416 417 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1); 418 sec = krealloc(img->sec, alloc_size, GFP_KERNEL); 419 if (!sec) 420 return -ENOMEM; 421 img->sec = sec; 422 423 sec = &img->sec[img->sec_counter]; 424 425 sec->offset = le32_to_cpu(sec_parse->offset); 426 sec->data = sec_parse->data; 427 sec->size = size - sizeof(sec_parse->offset); 428 429 ++img->sec_counter; 430 431 return 0; 432 } 433 434 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 435 { 436 struct iwl_tlv_calib_data *def_calib = 437 (struct iwl_tlv_calib_data *)data; 438 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 439 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 440 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 441 ucode_type); 442 return -EINVAL; 443 } 444 drv->fw.default_calib[ucode_type].flow_trigger = 445 def_calib->calib.flow_trigger; 446 drv->fw.default_calib[ucode_type].event_trigger = 447 def_calib->calib.event_trigger; 448 449 return 0; 450 } 451 452 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 453 struct iwl_ucode_capabilities *capa) 454 { 455 const struct iwl_ucode_api *ucode_api = (void *)data; 456 u32 api_index = le32_to_cpu(ucode_api->api_index); 457 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 458 int i; 459 460 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 461 IWL_WARN(drv, 462 "api flags index %d larger than supported by driver\n", 463 api_index); 464 return; 465 } 466 467 for (i = 0; i < 32; i++) { 468 if (api_flags & BIT(i)) 469 __set_bit(i + 32 * api_index, capa->_api); 470 } 471 } 472 473 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 474 struct iwl_ucode_capabilities *capa) 475 { 476 const struct iwl_ucode_capa *ucode_capa = (void *)data; 477 u32 api_index = le32_to_cpu(ucode_capa->api_index); 478 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 479 int i; 480 481 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 482 IWL_WARN(drv, 483 "capa flags index %d larger than supported by driver\n", 484 api_index); 485 return; 486 } 487 488 for (i = 0; i < 32; i++) { 489 if (api_flags & BIT(i)) 490 __set_bit(i + 32 * api_index, capa->_capa); 491 } 492 } 493 494 static const char *iwl_reduced_fw_name(struct iwl_drv *drv) 495 { 496 const char *name = drv->firmware_name; 497 498 if (strncmp(name, "iwlwifi-", 8) == 0) 499 name += 8; 500 501 return name; 502 } 503 504 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 505 const struct firmware *ucode_raw, 506 struct iwl_firmware_pieces *pieces) 507 { 508 struct iwl_ucode_header *ucode = (void *)ucode_raw->data; 509 u32 api_ver, hdr_size, build; 510 char buildstr[25]; 511 const u8 *src; 512 513 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 514 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 515 516 switch (api_ver) { 517 default: 518 hdr_size = 28; 519 if (ucode_raw->size < hdr_size) { 520 IWL_ERR(drv, "File size too small!\n"); 521 return -EINVAL; 522 } 523 build = le32_to_cpu(ucode->u.v2.build); 524 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 525 le32_to_cpu(ucode->u.v2.inst_size)); 526 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 527 le32_to_cpu(ucode->u.v2.data_size)); 528 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 529 le32_to_cpu(ucode->u.v2.init_size)); 530 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 531 le32_to_cpu(ucode->u.v2.init_data_size)); 532 src = ucode->u.v2.data; 533 break; 534 case 0: 535 case 1: 536 case 2: 537 hdr_size = 24; 538 if (ucode_raw->size < hdr_size) { 539 IWL_ERR(drv, "File size too small!\n"); 540 return -EINVAL; 541 } 542 build = 0; 543 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 544 le32_to_cpu(ucode->u.v1.inst_size)); 545 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 546 le32_to_cpu(ucode->u.v1.data_size)); 547 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 548 le32_to_cpu(ucode->u.v1.init_size)); 549 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 550 le32_to_cpu(ucode->u.v1.init_data_size)); 551 src = ucode->u.v1.data; 552 break; 553 } 554 555 if (build) 556 sprintf(buildstr, " build %u", build); 557 else 558 buildstr[0] = '\0'; 559 560 snprintf(drv->fw.fw_version, 561 sizeof(drv->fw.fw_version), 562 "%u.%u.%u.%u%s %s", 563 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 564 IWL_UCODE_MINOR(drv->fw.ucode_ver), 565 IWL_UCODE_API(drv->fw.ucode_ver), 566 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 567 buildstr, iwl_reduced_fw_name(drv)); 568 569 /* Verify size of file vs. image size info in file's header */ 570 571 if (ucode_raw->size != hdr_size + 572 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 573 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 574 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 575 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 576 577 IWL_ERR(drv, 578 "uCode file size %d does not match expected size\n", 579 (int)ucode_raw->size); 580 return -EINVAL; 581 } 582 583 584 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 585 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 586 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 587 IWLAGN_RTC_INST_LOWER_BOUND); 588 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 589 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 590 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 591 IWLAGN_RTC_DATA_LOWER_BOUND); 592 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 593 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 594 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 595 IWLAGN_RTC_INST_LOWER_BOUND); 596 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 597 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 598 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 599 IWLAGN_RTC_DATA_LOWER_BOUND); 600 return 0; 601 } 602 603 #define FW_ADDR_CACHE_CONTROL 0xC0000000 604 605 static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 606 const struct firmware *ucode_raw, 607 struct iwl_firmware_pieces *pieces, 608 struct iwl_ucode_capabilities *capa, 609 bool *usniffer_images) 610 { 611 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; 612 struct iwl_ucode_tlv *tlv; 613 size_t len = ucode_raw->size; 614 const u8 *data; 615 u32 tlv_len; 616 u32 usniffer_img; 617 enum iwl_ucode_tlv_type tlv_type; 618 const u8 *tlv_data; 619 char buildstr[25]; 620 u32 build, paging_mem_size; 621 int num_of_cpus; 622 bool usniffer_req = false; 623 624 if (len < sizeof(*ucode)) { 625 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 626 return -EINVAL; 627 } 628 629 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 630 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 631 le32_to_cpu(ucode->magic)); 632 return -EINVAL; 633 } 634 635 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 636 memcpy(drv->fw.human_readable, ucode->human_readable, 637 sizeof(drv->fw.human_readable)); 638 build = le32_to_cpu(ucode->build); 639 640 if (build) 641 sprintf(buildstr, " build %u", build); 642 else 643 buildstr[0] = '\0'; 644 645 snprintf(drv->fw.fw_version, 646 sizeof(drv->fw.fw_version), 647 "%u.%u.%u.%u%s %s", 648 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 649 IWL_UCODE_MINOR(drv->fw.ucode_ver), 650 IWL_UCODE_API(drv->fw.ucode_ver), 651 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 652 buildstr, iwl_reduced_fw_name(drv)); 653 654 data = ucode->data; 655 656 len -= sizeof(*ucode); 657 658 while (len >= sizeof(*tlv)) { 659 len -= sizeof(*tlv); 660 tlv = (void *)data; 661 662 tlv_len = le32_to_cpu(tlv->length); 663 tlv_type = le32_to_cpu(tlv->type); 664 tlv_data = tlv->data; 665 666 if (len < tlv_len) { 667 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 668 len, tlv_len); 669 return -EINVAL; 670 } 671 len -= ALIGN(tlv_len, 4); 672 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 673 674 switch (tlv_type) { 675 case IWL_UCODE_TLV_INST: 676 set_sec_data(pieces, IWL_UCODE_REGULAR, 677 IWL_UCODE_SECTION_INST, tlv_data); 678 set_sec_size(pieces, IWL_UCODE_REGULAR, 679 IWL_UCODE_SECTION_INST, tlv_len); 680 set_sec_offset(pieces, IWL_UCODE_REGULAR, 681 IWL_UCODE_SECTION_INST, 682 IWLAGN_RTC_INST_LOWER_BOUND); 683 break; 684 case IWL_UCODE_TLV_DATA: 685 set_sec_data(pieces, IWL_UCODE_REGULAR, 686 IWL_UCODE_SECTION_DATA, tlv_data); 687 set_sec_size(pieces, IWL_UCODE_REGULAR, 688 IWL_UCODE_SECTION_DATA, tlv_len); 689 set_sec_offset(pieces, IWL_UCODE_REGULAR, 690 IWL_UCODE_SECTION_DATA, 691 IWLAGN_RTC_DATA_LOWER_BOUND); 692 break; 693 case IWL_UCODE_TLV_INIT: 694 set_sec_data(pieces, IWL_UCODE_INIT, 695 IWL_UCODE_SECTION_INST, tlv_data); 696 set_sec_size(pieces, IWL_UCODE_INIT, 697 IWL_UCODE_SECTION_INST, tlv_len); 698 set_sec_offset(pieces, IWL_UCODE_INIT, 699 IWL_UCODE_SECTION_INST, 700 IWLAGN_RTC_INST_LOWER_BOUND); 701 break; 702 case IWL_UCODE_TLV_INIT_DATA: 703 set_sec_data(pieces, IWL_UCODE_INIT, 704 IWL_UCODE_SECTION_DATA, tlv_data); 705 set_sec_size(pieces, IWL_UCODE_INIT, 706 IWL_UCODE_SECTION_DATA, tlv_len); 707 set_sec_offset(pieces, IWL_UCODE_INIT, 708 IWL_UCODE_SECTION_DATA, 709 IWLAGN_RTC_DATA_LOWER_BOUND); 710 break; 711 case IWL_UCODE_TLV_BOOT: 712 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 713 break; 714 case IWL_UCODE_TLV_PROBE_MAX_LEN: 715 if (tlv_len != sizeof(u32)) 716 goto invalid_tlv_len; 717 capa->max_probe_length = 718 le32_to_cpup((__le32 *)tlv_data); 719 break; 720 case IWL_UCODE_TLV_PAN: 721 if (tlv_len) 722 goto invalid_tlv_len; 723 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 724 break; 725 case IWL_UCODE_TLV_FLAGS: 726 /* must be at least one u32 */ 727 if (tlv_len < sizeof(u32)) 728 goto invalid_tlv_len; 729 /* and a proper number of u32s */ 730 if (tlv_len % sizeof(u32)) 731 goto invalid_tlv_len; 732 /* 733 * This driver only reads the first u32 as 734 * right now no more features are defined, 735 * if that changes then either the driver 736 * will not work with the new firmware, or 737 * it'll not take advantage of new features. 738 */ 739 capa->flags = le32_to_cpup((__le32 *)tlv_data); 740 break; 741 case IWL_UCODE_TLV_API_CHANGES_SET: 742 if (tlv_len != sizeof(struct iwl_ucode_api)) 743 goto invalid_tlv_len; 744 iwl_set_ucode_api_flags(drv, tlv_data, capa); 745 break; 746 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 747 if (tlv_len != sizeof(struct iwl_ucode_capa)) 748 goto invalid_tlv_len; 749 iwl_set_ucode_capabilities(drv, tlv_data, capa); 750 break; 751 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 752 if (tlv_len != sizeof(u32)) 753 goto invalid_tlv_len; 754 pieces->init_evtlog_ptr = 755 le32_to_cpup((__le32 *)tlv_data); 756 break; 757 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 758 if (tlv_len != sizeof(u32)) 759 goto invalid_tlv_len; 760 pieces->init_evtlog_size = 761 le32_to_cpup((__le32 *)tlv_data); 762 break; 763 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 764 if (tlv_len != sizeof(u32)) 765 goto invalid_tlv_len; 766 pieces->init_errlog_ptr = 767 le32_to_cpup((__le32 *)tlv_data); 768 break; 769 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 770 if (tlv_len != sizeof(u32)) 771 goto invalid_tlv_len; 772 pieces->inst_evtlog_ptr = 773 le32_to_cpup((__le32 *)tlv_data); 774 break; 775 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 776 if (tlv_len != sizeof(u32)) 777 goto invalid_tlv_len; 778 pieces->inst_evtlog_size = 779 le32_to_cpup((__le32 *)tlv_data); 780 break; 781 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 782 if (tlv_len != sizeof(u32)) 783 goto invalid_tlv_len; 784 pieces->inst_errlog_ptr = 785 le32_to_cpup((__le32 *)tlv_data); 786 break; 787 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 788 if (tlv_len) 789 goto invalid_tlv_len; 790 drv->fw.enhance_sensitivity_table = true; 791 break; 792 case IWL_UCODE_TLV_WOWLAN_INST: 793 set_sec_data(pieces, IWL_UCODE_WOWLAN, 794 IWL_UCODE_SECTION_INST, tlv_data); 795 set_sec_size(pieces, IWL_UCODE_WOWLAN, 796 IWL_UCODE_SECTION_INST, tlv_len); 797 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 798 IWL_UCODE_SECTION_INST, 799 IWLAGN_RTC_INST_LOWER_BOUND); 800 break; 801 case IWL_UCODE_TLV_WOWLAN_DATA: 802 set_sec_data(pieces, IWL_UCODE_WOWLAN, 803 IWL_UCODE_SECTION_DATA, tlv_data); 804 set_sec_size(pieces, IWL_UCODE_WOWLAN, 805 IWL_UCODE_SECTION_DATA, tlv_len); 806 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 807 IWL_UCODE_SECTION_DATA, 808 IWLAGN_RTC_DATA_LOWER_BOUND); 809 break; 810 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 811 if (tlv_len != sizeof(u32)) 812 goto invalid_tlv_len; 813 capa->standard_phy_calibration_size = 814 le32_to_cpup((__le32 *)tlv_data); 815 break; 816 case IWL_UCODE_TLV_SEC_RT: 817 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 818 tlv_len); 819 drv->fw.type = IWL_FW_MVM; 820 break; 821 case IWL_UCODE_TLV_SEC_INIT: 822 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 823 tlv_len); 824 drv->fw.type = IWL_FW_MVM; 825 break; 826 case IWL_UCODE_TLV_SEC_WOWLAN: 827 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 828 tlv_len); 829 drv->fw.type = IWL_FW_MVM; 830 break; 831 case IWL_UCODE_TLV_DEF_CALIB: 832 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 833 goto invalid_tlv_len; 834 if (iwl_set_default_calib(drv, tlv_data)) 835 goto tlv_error; 836 break; 837 case IWL_UCODE_TLV_PHY_SKU: 838 if (tlv_len != sizeof(u32)) 839 goto invalid_tlv_len; 840 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); 841 drv->fw.valid_tx_ant = (drv->fw.phy_config & 842 FW_PHY_CFG_TX_CHAIN) >> 843 FW_PHY_CFG_TX_CHAIN_POS; 844 drv->fw.valid_rx_ant = (drv->fw.phy_config & 845 FW_PHY_CFG_RX_CHAIN) >> 846 FW_PHY_CFG_RX_CHAIN_POS; 847 break; 848 case IWL_UCODE_TLV_SECURE_SEC_RT: 849 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 850 tlv_len); 851 drv->fw.type = IWL_FW_MVM; 852 break; 853 case IWL_UCODE_TLV_SECURE_SEC_INIT: 854 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 855 tlv_len); 856 drv->fw.type = IWL_FW_MVM; 857 break; 858 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 859 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 860 tlv_len); 861 drv->fw.type = IWL_FW_MVM; 862 break; 863 case IWL_UCODE_TLV_NUM_OF_CPU: 864 if (tlv_len != sizeof(u32)) 865 goto invalid_tlv_len; 866 num_of_cpus = 867 le32_to_cpup((__le32 *)tlv_data); 868 869 if (num_of_cpus == 2) { 870 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 871 true; 872 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 873 true; 874 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 875 true; 876 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 877 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 878 return -EINVAL; 879 } 880 break; 881 case IWL_UCODE_TLV_CSCHEME: 882 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) 883 goto invalid_tlv_len; 884 break; 885 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 886 if (tlv_len != sizeof(u32)) 887 goto invalid_tlv_len; 888 capa->n_scan_channels = 889 le32_to_cpup((__le32 *)tlv_data); 890 break; 891 case IWL_UCODE_TLV_FW_VERSION: { 892 __le32 *ptr = (void *)tlv_data; 893 u32 major, minor; 894 u8 local_comp; 895 896 if (tlv_len != sizeof(u32) * 3) 897 goto invalid_tlv_len; 898 899 major = le32_to_cpup(ptr++); 900 minor = le32_to_cpup(ptr++); 901 local_comp = le32_to_cpup(ptr); 902 903 if (major >= 35) 904 snprintf(drv->fw.fw_version, 905 sizeof(drv->fw.fw_version), 906 "%u.%08x.%u %s", major, minor, 907 local_comp, iwl_reduced_fw_name(drv)); 908 else 909 snprintf(drv->fw.fw_version, 910 sizeof(drv->fw.fw_version), 911 "%u.%u.%u %s", major, minor, 912 local_comp, iwl_reduced_fw_name(drv)); 913 break; 914 } 915 case IWL_UCODE_TLV_FW_DBG_DEST: { 916 struct iwl_fw_dbg_dest_tlv *dest = NULL; 917 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL; 918 u8 mon_mode; 919 920 pieces->dbg_dest_ver = (u8 *)tlv_data; 921 if (*pieces->dbg_dest_ver == 1) { 922 dest = (void *)tlv_data; 923 } else if (*pieces->dbg_dest_ver == 0) { 924 dest_v1 = (void *)tlv_data; 925 } else { 926 IWL_ERR(drv, 927 "The version is %d, and it is invalid\n", 928 *pieces->dbg_dest_ver); 929 break; 930 } 931 932 if (pieces->dbg_dest_tlv_init) { 933 IWL_ERR(drv, 934 "dbg destination ignored, already exists\n"); 935 break; 936 } 937 938 pieces->dbg_dest_tlv_init = true; 939 940 if (dest_v1) { 941 pieces->dbg_dest_tlv_v1 = dest_v1; 942 mon_mode = dest_v1->monitor_mode; 943 } else { 944 pieces->dbg_dest_tlv = dest; 945 mon_mode = dest->monitor_mode; 946 } 947 948 IWL_INFO(drv, "Found debug destination: %s\n", 949 get_fw_dbg_mode_string(mon_mode)); 950 951 drv->fw.dbg.n_dest_reg = (dest_v1) ? 952 tlv_len - 953 offsetof(struct iwl_fw_dbg_dest_tlv_v1, 954 reg_ops) : 955 tlv_len - 956 offsetof(struct iwl_fw_dbg_dest_tlv, 957 reg_ops); 958 959 drv->fw.dbg.n_dest_reg /= 960 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]); 961 962 break; 963 } 964 case IWL_UCODE_TLV_FW_DBG_CONF: { 965 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; 966 967 if (!pieces->dbg_dest_tlv_init) { 968 IWL_ERR(drv, 969 "Ignore dbg config %d - no destination configured\n", 970 conf->id); 971 break; 972 } 973 974 if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) { 975 IWL_ERR(drv, 976 "Skip unknown configuration: %d\n", 977 conf->id); 978 break; 979 } 980 981 if (pieces->dbg_conf_tlv[conf->id]) { 982 IWL_ERR(drv, 983 "Ignore duplicate dbg config %d\n", 984 conf->id); 985 break; 986 } 987 988 if (conf->usniffer) 989 usniffer_req = true; 990 991 IWL_INFO(drv, "Found debug configuration: %d\n", 992 conf->id); 993 994 pieces->dbg_conf_tlv[conf->id] = conf; 995 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 996 break; 997 } 998 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 999 struct iwl_fw_dbg_trigger_tlv *trigger = 1000 (void *)tlv_data; 1001 u32 trigger_id = le32_to_cpu(trigger->id); 1002 1003 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) { 1004 IWL_ERR(drv, 1005 "Skip unknown trigger: %u\n", 1006 trigger->id); 1007 break; 1008 } 1009 1010 if (pieces->dbg_trigger_tlv[trigger_id]) { 1011 IWL_ERR(drv, 1012 "Ignore duplicate dbg trigger %u\n", 1013 trigger->id); 1014 break; 1015 } 1016 1017 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 1018 1019 pieces->dbg_trigger_tlv[trigger_id] = trigger; 1020 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 1021 break; 1022 } 1023 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: { 1024 if (tlv_len != sizeof(u32)) { 1025 IWL_ERR(drv, 1026 "dbg lst mask size incorrect, skip\n"); 1027 break; 1028 } 1029 1030 drv->fw.dbg.dump_mask = 1031 le32_to_cpup((__le32 *)tlv_data); 1032 break; 1033 } 1034 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 1035 *usniffer_images = true; 1036 iwl_store_ucode_sec(pieces, tlv_data, 1037 IWL_UCODE_REGULAR_USNIFFER, 1038 tlv_len); 1039 break; 1040 case IWL_UCODE_TLV_PAGING: 1041 if (tlv_len != sizeof(u32)) 1042 goto invalid_tlv_len; 1043 paging_mem_size = le32_to_cpup((__le32 *)tlv_data); 1044 1045 IWL_DEBUG_FW(drv, 1046 "Paging: paging enabled (size = %u bytes)\n", 1047 paging_mem_size); 1048 1049 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 1050 IWL_ERR(drv, 1051 "Paging: driver supports up to %lu bytes for paging image\n", 1052 MAX_PAGING_IMAGE_SIZE); 1053 return -EINVAL; 1054 } 1055 1056 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1057 IWL_ERR(drv, 1058 "Paging: image isn't multiple %lu\n", 1059 FW_PAGING_SIZE); 1060 return -EINVAL; 1061 } 1062 1063 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1064 paging_mem_size; 1065 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1066 drv->fw.img[usniffer_img].paging_mem_size = 1067 paging_mem_size; 1068 break; 1069 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1070 /* ignored */ 1071 break; 1072 case IWL_UCODE_TLV_FW_MEM_SEG: { 1073 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = 1074 (void *)tlv_data; 1075 size_t size; 1076 struct iwl_fw_dbg_mem_seg_tlv *n; 1077 1078 if (tlv_len != (sizeof(*dbg_mem))) 1079 goto invalid_tlv_len; 1080 1081 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", 1082 dbg_mem->data_type); 1083 1084 size = sizeof(*pieces->dbg_mem_tlv) * 1085 (pieces->n_mem_tlv + 1); 1086 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL); 1087 if (!n) 1088 return -ENOMEM; 1089 pieces->dbg_mem_tlv = n; 1090 pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem; 1091 pieces->n_mem_tlv++; 1092 break; 1093 } 1094 case IWL_UCODE_TLV_IML: { 1095 drv->fw.iml_len = tlv_len; 1096 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1097 if (!drv->fw.iml) 1098 return -ENOMEM; 1099 break; 1100 } 1101 case IWL_UCODE_TLV_FW_RECOVERY_INFO: { 1102 struct { 1103 __le32 buf_addr; 1104 __le32 buf_size; 1105 } *recov_info = (void *)tlv_data; 1106 1107 if (tlv_len != sizeof(*recov_info)) 1108 goto invalid_tlv_len; 1109 capa->error_log_addr = 1110 le32_to_cpu(recov_info->buf_addr); 1111 capa->error_log_size = 1112 le32_to_cpu(recov_info->buf_size); 1113 } 1114 break; 1115 case IWL_UCODE_TLV_FW_FSEQ_VERSION: { 1116 struct { 1117 u8 version[32]; 1118 u8 sha1[20]; 1119 } *fseq_ver = (void *)tlv_data; 1120 1121 if (tlv_len != sizeof(*fseq_ver)) 1122 goto invalid_tlv_len; 1123 IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n", 1124 fseq_ver->version); 1125 } 1126 break; 1127 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: { 1128 struct iwl_umac_debug_addrs *dbg_ptrs = 1129 (void *)tlv_data; 1130 1131 if (tlv_len != sizeof(*dbg_ptrs)) 1132 goto invalid_tlv_len; 1133 if (drv->trans->trans_cfg->device_family < 1134 IWL_DEVICE_FAMILY_22000) 1135 break; 1136 drv->trans->dbg.umac_error_event_table = 1137 le32_to_cpu(dbg_ptrs->error_info_addr) & 1138 ~FW_ADDR_CACHE_CONTROL; 1139 drv->trans->dbg.error_event_table_tlv_status |= 1140 IWL_ERROR_EVENT_TABLE_UMAC; 1141 break; 1142 } 1143 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: { 1144 struct iwl_lmac_debug_addrs *dbg_ptrs = 1145 (void *)tlv_data; 1146 1147 if (tlv_len != sizeof(*dbg_ptrs)) 1148 goto invalid_tlv_len; 1149 if (drv->trans->trans_cfg->device_family < 1150 IWL_DEVICE_FAMILY_22000) 1151 break; 1152 drv->trans->dbg.lmac_error_event_table[0] = 1153 le32_to_cpu(dbg_ptrs->error_event_table_ptr) & 1154 ~FW_ADDR_CACHE_CONTROL; 1155 drv->trans->dbg.error_event_table_tlv_status |= 1156 IWL_ERROR_EVENT_TABLE_LMAC1; 1157 break; 1158 } 1159 case IWL_UCODE_TLV_TYPE_DEBUG_INFO: 1160 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION: 1161 case IWL_UCODE_TLV_TYPE_HCMD: 1162 case IWL_UCODE_TLV_TYPE_REGIONS: 1163 case IWL_UCODE_TLV_TYPE_TRIGGERS: 1164 if (iwlwifi_mod_params.enable_ini) 1165 iwl_dbg_tlv_alloc(drv->trans, tlv, false); 1166 break; 1167 case IWL_UCODE_TLV_CMD_VERSIONS: 1168 if (tlv_len % sizeof(struct iwl_fw_cmd_version)) { 1169 IWL_ERR(drv, 1170 "Invalid length for command versions: %u\n", 1171 tlv_len); 1172 tlv_len /= sizeof(struct iwl_fw_cmd_version); 1173 tlv_len *= sizeof(struct iwl_fw_cmd_version); 1174 } 1175 if (WARN_ON(capa->cmd_versions)) 1176 return -EINVAL; 1177 capa->cmd_versions = kmemdup(tlv_data, tlv_len, 1178 GFP_KERNEL); 1179 if (!capa->cmd_versions) 1180 return -ENOMEM; 1181 capa->n_cmd_versions = 1182 tlv_len / sizeof(struct iwl_fw_cmd_version); 1183 break; 1184 default: 1185 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1186 break; 1187 } 1188 } 1189 1190 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 1191 usniffer_req && !*usniffer_images) { 1192 IWL_ERR(drv, 1193 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1194 return -EINVAL; 1195 } 1196 1197 if (len) { 1198 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1199 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); 1200 return -EINVAL; 1201 } 1202 1203 return 0; 1204 1205 invalid_tlv_len: 1206 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1207 tlv_error: 1208 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1209 1210 return -EINVAL; 1211 } 1212 1213 static int iwl_alloc_ucode(struct iwl_drv *drv, 1214 struct iwl_firmware_pieces *pieces, 1215 enum iwl_ucode_type type) 1216 { 1217 int i; 1218 struct fw_desc *sec; 1219 1220 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL); 1221 if (!sec) 1222 return -ENOMEM; 1223 drv->fw.img[type].sec = sec; 1224 drv->fw.img[type].num_sec = pieces->img[type].sec_counter; 1225 1226 for (i = 0; i < pieces->img[type].sec_counter; i++) 1227 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i))) 1228 return -ENOMEM; 1229 1230 return 0; 1231 } 1232 1233 static int validate_sec_sizes(struct iwl_drv *drv, 1234 struct iwl_firmware_pieces *pieces, 1235 const struct iwl_cfg *cfg) 1236 { 1237 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n", 1238 get_sec_size(pieces, IWL_UCODE_REGULAR, 1239 IWL_UCODE_SECTION_INST)); 1240 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n", 1241 get_sec_size(pieces, IWL_UCODE_REGULAR, 1242 IWL_UCODE_SECTION_DATA)); 1243 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n", 1244 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1245 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n", 1246 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1247 1248 /* Verify that uCode images will fit in card's SRAM. */ 1249 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1250 cfg->max_inst_size) { 1251 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n", 1252 get_sec_size(pieces, IWL_UCODE_REGULAR, 1253 IWL_UCODE_SECTION_INST)); 1254 return -1; 1255 } 1256 1257 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1258 cfg->max_data_size) { 1259 IWL_ERR(drv, "uCode data len %zd too large to fit in\n", 1260 get_sec_size(pieces, IWL_UCODE_REGULAR, 1261 IWL_UCODE_SECTION_DATA)); 1262 return -1; 1263 } 1264 1265 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1266 cfg->max_inst_size) { 1267 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n", 1268 get_sec_size(pieces, IWL_UCODE_INIT, 1269 IWL_UCODE_SECTION_INST)); 1270 return -1; 1271 } 1272 1273 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1274 cfg->max_data_size) { 1275 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n", 1276 get_sec_size(pieces, IWL_UCODE_REGULAR, 1277 IWL_UCODE_SECTION_DATA)); 1278 return -1; 1279 } 1280 return 0; 1281 } 1282 1283 static struct iwl_op_mode * 1284 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1285 { 1286 const struct iwl_op_mode_ops *ops = op->ops; 1287 struct dentry *dbgfs_dir = NULL; 1288 struct iwl_op_mode *op_mode = NULL; 1289 1290 #ifdef CONFIG_IWLWIFI_DEBUGFS 1291 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1292 drv->dbgfs_drv); 1293 dbgfs_dir = drv->dbgfs_op_mode; 1294 #endif 1295 1296 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir); 1297 1298 #ifdef CONFIG_IWLWIFI_DEBUGFS 1299 if (!op_mode) { 1300 debugfs_remove_recursive(drv->dbgfs_op_mode); 1301 drv->dbgfs_op_mode = NULL; 1302 } 1303 #endif 1304 1305 return op_mode; 1306 } 1307 1308 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1309 { 1310 /* op_mode can be NULL if its start failed */ 1311 if (drv->op_mode) { 1312 iwl_op_mode_stop(drv->op_mode); 1313 drv->op_mode = NULL; 1314 1315 #ifdef CONFIG_IWLWIFI_DEBUGFS 1316 debugfs_remove_recursive(drv->dbgfs_op_mode); 1317 drv->dbgfs_op_mode = NULL; 1318 #endif 1319 } 1320 } 1321 1322 /** 1323 * iwl_req_fw_callback - callback when firmware was loaded 1324 * 1325 * If loaded successfully, copies the firmware into buffers 1326 * for the card to fetch (via DMA). 1327 */ 1328 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1329 { 1330 struct iwl_drv *drv = context; 1331 struct iwl_fw *fw = &drv->fw; 1332 struct iwl_ucode_header *ucode; 1333 struct iwlwifi_opmode_table *op; 1334 int err; 1335 struct iwl_firmware_pieces *pieces; 1336 const unsigned int api_max = drv->trans->cfg->ucode_api_max; 1337 const unsigned int api_min = drv->trans->cfg->ucode_api_min; 1338 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1339 u32 api_ver; 1340 int i; 1341 bool load_module = false; 1342 bool usniffer_images = false; 1343 1344 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1345 fw->ucode_capa.standard_phy_calibration_size = 1346 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1347 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1348 /* dump all fw memory areas by default */ 1349 fw->dbg.dump_mask = 0xffffffff; 1350 1351 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1352 if (!pieces) 1353 goto out_free_fw; 1354 1355 if (!ucode_raw) 1356 goto try_again; 1357 1358 IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1359 drv->firmware_name, ucode_raw->size); 1360 1361 /* Make sure that we got at least the API version number */ 1362 if (ucode_raw->size < 4) { 1363 IWL_ERR(drv, "File size way too small!\n"); 1364 goto try_again; 1365 } 1366 1367 /* Data from ucode file: header followed by uCode images */ 1368 ucode = (struct iwl_ucode_header *)ucode_raw->data; 1369 1370 if (ucode->ver) 1371 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1372 else 1373 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1374 &fw->ucode_capa, &usniffer_images); 1375 1376 if (err) 1377 goto try_again; 1378 1379 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1380 api_ver = drv->fw.ucode_ver; 1381 else 1382 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1383 1384 /* 1385 * api_ver should match the api version forming part of the 1386 * firmware filename ... but we don't check for that and only rely 1387 * on the API version read from firmware header from here on forward 1388 */ 1389 if (api_ver < api_min || api_ver > api_max) { 1390 IWL_ERR(drv, 1391 "Driver unable to support your firmware API. " 1392 "Driver supports v%u, firmware is v%u.\n", 1393 api_max, api_ver); 1394 goto try_again; 1395 } 1396 1397 /* 1398 * In mvm uCode there is no difference between data and instructions 1399 * sections. 1400 */ 1401 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, 1402 drv->trans->cfg)) 1403 goto try_again; 1404 1405 /* Allocate ucode buffers for card's bus-master loading ... */ 1406 1407 /* Runtime instructions and 2 copies of data: 1408 * 1) unmodified from disk 1409 * 2) backup cache for save/restore during power-downs 1410 */ 1411 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1412 if (iwl_alloc_ucode(drv, pieces, i)) 1413 goto out_free_fw; 1414 1415 if (pieces->dbg_dest_tlv_init) { 1416 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) + 1417 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1418 drv->fw.dbg.n_dest_reg; 1419 1420 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL); 1421 1422 if (!drv->fw.dbg.dest_tlv) 1423 goto out_free_fw; 1424 1425 if (*pieces->dbg_dest_ver == 0) { 1426 memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1, 1427 dbg_dest_size); 1428 } else { 1429 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv = 1430 drv->fw.dbg.dest_tlv; 1431 1432 dest_tlv->version = pieces->dbg_dest_tlv->version; 1433 dest_tlv->monitor_mode = 1434 pieces->dbg_dest_tlv->monitor_mode; 1435 dest_tlv->size_power = 1436 pieces->dbg_dest_tlv->size_power; 1437 dest_tlv->wrap_count = 1438 pieces->dbg_dest_tlv->wrap_count; 1439 dest_tlv->write_ptr_reg = 1440 pieces->dbg_dest_tlv->write_ptr_reg; 1441 dest_tlv->base_shift = 1442 pieces->dbg_dest_tlv->base_shift; 1443 memcpy(dest_tlv->reg_ops, 1444 pieces->dbg_dest_tlv->reg_ops, 1445 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) * 1446 drv->fw.dbg.n_dest_reg); 1447 1448 /* In version 1 of the destination tlv, which is 1449 * relevant for internal buffer exclusively, 1450 * the base address is part of given with the length 1451 * of the buffer, and the size shift is give instead of 1452 * end shift. We now store these values in base_reg, 1453 * and end shift, and when dumping the data we'll 1454 * manipulate it for extracting both the length and 1455 * base address */ 1456 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg; 1457 dest_tlv->end_shift = 1458 pieces->dbg_dest_tlv->size_shift; 1459 } 1460 } 1461 1462 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) { 1463 if (pieces->dbg_conf_tlv[i]) { 1464 drv->fw.dbg.conf_tlv[i] = 1465 kmemdup(pieces->dbg_conf_tlv[i], 1466 pieces->dbg_conf_tlv_len[i], 1467 GFP_KERNEL); 1468 if (!drv->fw.dbg.conf_tlv[i]) 1469 goto out_free_fw; 1470 } 1471 } 1472 1473 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1474 1475 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1476 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1477 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1478 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1479 sizeof(struct iwl_fw_dbg_trigger_cmd); 1480 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1481 sizeof(struct iwl_fw_dbg_trigger_mlme); 1482 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1483 sizeof(struct iwl_fw_dbg_trigger_stats); 1484 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1485 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1486 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1487 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1488 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1489 sizeof(struct iwl_fw_dbg_trigger_time_event); 1490 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1491 sizeof(struct iwl_fw_dbg_trigger_ba); 1492 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1493 sizeof(struct iwl_fw_dbg_trigger_tdls); 1494 1495 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) { 1496 if (pieces->dbg_trigger_tlv[i]) { 1497 /* 1498 * If the trigger isn't long enough, WARN and exit. 1499 * Someone is trying to debug something and he won't 1500 * be able to catch the bug he is trying to chase. 1501 * We'd better be noisy to be sure he knows what's 1502 * going on. 1503 */ 1504 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1505 (trigger_tlv_sz[i] + 1506 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1507 goto out_free_fw; 1508 drv->fw.dbg.trigger_tlv_len[i] = 1509 pieces->dbg_trigger_tlv_len[i]; 1510 drv->fw.dbg.trigger_tlv[i] = 1511 kmemdup(pieces->dbg_trigger_tlv[i], 1512 drv->fw.dbg.trigger_tlv_len[i], 1513 GFP_KERNEL); 1514 if (!drv->fw.dbg.trigger_tlv[i]) 1515 goto out_free_fw; 1516 } 1517 } 1518 1519 /* Now that we can no longer fail, copy information */ 1520 1521 drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv; 1522 pieces->dbg_mem_tlv = NULL; 1523 drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv; 1524 1525 /* 1526 * The (size - 16) / 12 formula is based on the information recorded 1527 * for each event, which is of mode 1 (including timestamp) for all 1528 * new microcodes that include this information. 1529 */ 1530 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1531 if (pieces->init_evtlog_size) 1532 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1533 else 1534 fw->init_evtlog_size = 1535 drv->trans->trans_cfg->base_params->max_event_log_size; 1536 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1537 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1538 if (pieces->inst_evtlog_size) 1539 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1540 else 1541 fw->inst_evtlog_size = 1542 drv->trans->trans_cfg->base_params->max_event_log_size; 1543 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1544 1545 /* 1546 * figure out the offset of chain noise reset and gain commands 1547 * base on the size of standard phy calibration commands table size 1548 */ 1549 if (fw->ucode_capa.standard_phy_calibration_size > 1550 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1551 fw->ucode_capa.standard_phy_calibration_size = 1552 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1553 1554 /* We have our copies now, allow OS release its copies */ 1555 release_firmware(ucode_raw); 1556 1557 mutex_lock(&iwlwifi_opmode_table_mtx); 1558 switch (fw->type) { 1559 case IWL_FW_DVM: 1560 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1561 break; 1562 default: 1563 WARN(1, "Invalid fw type %d\n", fw->type); 1564 /* fall through */ 1565 case IWL_FW_MVM: 1566 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1567 break; 1568 } 1569 1570 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1571 drv->fw.fw_version, op->name); 1572 1573 iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans); 1574 1575 /* add this device to the list of devices using this op_mode */ 1576 list_add_tail(&drv->list, &op->drv); 1577 1578 if (op->ops) { 1579 drv->op_mode = _iwl_op_mode_start(drv, op); 1580 1581 if (!drv->op_mode) { 1582 mutex_unlock(&iwlwifi_opmode_table_mtx); 1583 goto out_unbind; 1584 } 1585 } else { 1586 load_module = true; 1587 } 1588 mutex_unlock(&iwlwifi_opmode_table_mtx); 1589 1590 /* 1591 * Complete the firmware request last so that 1592 * a driver unbind (stop) doesn't run while we 1593 * are doing the start() above. 1594 */ 1595 complete(&drv->request_firmware_complete); 1596 1597 /* 1598 * Load the module last so we don't block anything 1599 * else from proceeding if the module fails to load 1600 * or hangs loading. 1601 */ 1602 if (load_module) { 1603 request_module("%s", op->name); 1604 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR 1605 if (err) 1606 IWL_ERR(drv, 1607 "failed to load module %s (error %d), is dynamic loading enabled?\n", 1608 op->name, err); 1609 #endif 1610 } 1611 goto free; 1612 1613 try_again: 1614 /* try next, if any */ 1615 release_firmware(ucode_raw); 1616 if (iwl_request_firmware(drv, false)) 1617 goto out_unbind; 1618 goto free; 1619 1620 out_free_fw: 1621 release_firmware(ucode_raw); 1622 out_unbind: 1623 complete(&drv->request_firmware_complete); 1624 device_release_driver(drv->trans->dev); 1625 free: 1626 if (pieces) { 1627 for (i = 0; i < ARRAY_SIZE(pieces->img); i++) 1628 kfree(pieces->img[i].sec); 1629 kfree(pieces->dbg_mem_tlv); 1630 kfree(pieces); 1631 } 1632 } 1633 1634 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans) 1635 { 1636 struct iwl_drv *drv; 1637 int ret; 1638 1639 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1640 if (!drv) { 1641 ret = -ENOMEM; 1642 goto err; 1643 } 1644 1645 drv->trans = trans; 1646 drv->dev = trans->dev; 1647 1648 init_completion(&drv->request_firmware_complete); 1649 INIT_LIST_HEAD(&drv->list); 1650 1651 #ifdef CONFIG_IWLWIFI_DEBUGFS 1652 /* Create the device debugfs entries. */ 1653 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1654 iwl_dbgfs_root); 1655 1656 /* Create transport layer debugfs dir */ 1657 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1658 #endif 1659 1660 drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans); 1661 1662 ret = iwl_request_firmware(drv, true); 1663 if (ret) { 1664 IWL_ERR(trans, "Couldn't request the fw\n"); 1665 goto err_fw; 1666 } 1667 1668 return drv; 1669 1670 err_fw: 1671 #ifdef CONFIG_IWLWIFI_DEBUGFS 1672 debugfs_remove_recursive(drv->dbgfs_drv); 1673 iwl_dbg_tlv_free(drv->trans); 1674 #endif 1675 kfree(drv); 1676 err: 1677 return ERR_PTR(ret); 1678 } 1679 1680 void iwl_drv_stop(struct iwl_drv *drv) 1681 { 1682 wait_for_completion(&drv->request_firmware_complete); 1683 1684 _iwl_op_mode_stop(drv); 1685 1686 iwl_dealloc_ucode(drv); 1687 1688 mutex_lock(&iwlwifi_opmode_table_mtx); 1689 /* 1690 * List is empty (this item wasn't added) 1691 * when firmware loading failed -- in that 1692 * case we can't remove it from any list. 1693 */ 1694 if (!list_empty(&drv->list)) 1695 list_del(&drv->list); 1696 mutex_unlock(&iwlwifi_opmode_table_mtx); 1697 1698 #ifdef CONFIG_IWLWIFI_DEBUGFS 1699 drv->trans->ops->debugfs_cleanup(drv->trans); 1700 1701 debugfs_remove_recursive(drv->dbgfs_drv); 1702 #endif 1703 1704 iwl_dbg_tlv_free(drv->trans); 1705 1706 kfree(drv); 1707 } 1708 1709 1710 /* shared module parameters */ 1711 struct iwl_mod_params iwlwifi_mod_params = { 1712 .fw_restart = true, 1713 .bt_coex_active = true, 1714 .power_level = IWL_POWER_INDEX_1, 1715 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, 1716 .enable_ini = true, 1717 /* the rest are 0 by default */ 1718 }; 1719 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1720 1721 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1722 { 1723 int i; 1724 struct iwl_drv *drv; 1725 struct iwlwifi_opmode_table *op; 1726 1727 mutex_lock(&iwlwifi_opmode_table_mtx); 1728 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1729 op = &iwlwifi_opmode_table[i]; 1730 if (strcmp(op->name, name)) 1731 continue; 1732 op->ops = ops; 1733 /* TODO: need to handle exceptional case */ 1734 list_for_each_entry(drv, &op->drv, list) 1735 drv->op_mode = _iwl_op_mode_start(drv, op); 1736 1737 mutex_unlock(&iwlwifi_opmode_table_mtx); 1738 return 0; 1739 } 1740 mutex_unlock(&iwlwifi_opmode_table_mtx); 1741 return -EIO; 1742 } 1743 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1744 1745 void iwl_opmode_deregister(const char *name) 1746 { 1747 int i; 1748 struct iwl_drv *drv; 1749 1750 mutex_lock(&iwlwifi_opmode_table_mtx); 1751 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1752 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1753 continue; 1754 iwlwifi_opmode_table[i].ops = NULL; 1755 1756 /* call the stop routine for all devices */ 1757 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1758 _iwl_op_mode_stop(drv); 1759 1760 mutex_unlock(&iwlwifi_opmode_table_mtx); 1761 return; 1762 } 1763 mutex_unlock(&iwlwifi_opmode_table_mtx); 1764 } 1765 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1766 1767 static int __init iwl_drv_init(void) 1768 { 1769 int i, err; 1770 1771 mutex_init(&iwlwifi_opmode_table_mtx); 1772 1773 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1774 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1775 1776 pr_info(DRV_DESCRIPTION "\n"); 1777 1778 #ifdef CONFIG_IWLWIFI_DEBUGFS 1779 /* Create the root of iwlwifi debugfs subsystem. */ 1780 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1781 #endif 1782 1783 err = iwl_pci_register_driver(); 1784 if (err) 1785 goto cleanup_debugfs; 1786 1787 return 0; 1788 1789 cleanup_debugfs: 1790 #ifdef CONFIG_IWLWIFI_DEBUGFS 1791 debugfs_remove_recursive(iwl_dbgfs_root); 1792 #endif 1793 return err; 1794 } 1795 module_init(iwl_drv_init); 1796 1797 static void __exit iwl_drv_exit(void) 1798 { 1799 iwl_pci_unregister_driver(); 1800 1801 #ifdef CONFIG_IWLWIFI_DEBUGFS 1802 debugfs_remove_recursive(iwl_dbgfs_root); 1803 #endif 1804 } 1805 module_exit(iwl_drv_exit); 1806 1807 #ifdef CONFIG_IWLWIFI_DEBUG 1808 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644); 1809 MODULE_PARM_DESC(debug, "debug output mask"); 1810 #endif 1811 1812 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444); 1813 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1814 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444); 1815 MODULE_PARM_DESC(11n_disable, 1816 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1817 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444); 1818 MODULE_PARM_DESC(amsdu_size, 1819 "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, " 1820 "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)"); 1821 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444); 1822 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1823 1824 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444); 1825 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1826 1827 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644); 1828 MODULE_PARM_DESC(uapsd_disable, 1829 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); 1830 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini, 1831 bool, S_IRUGO | S_IWUSR); 1832 MODULE_PARM_DESC(enable_ini, 1833 "Enable debug INI TLV FW debug infrastructure (default: true"); 1834 1835 /* 1836 * set bt_coex_active to true, uCode will do kill/defer 1837 * every time the priority line is asserted (BT is sending signals on the 1838 * priority line in the PCIx). 1839 * set bt_coex_active to false, uCode will ignore the BT activity and 1840 * perform the normal operation 1841 * 1842 * User might experience transmit issue on some platform due to WiFi/BT 1843 * co-exist problem. The possible behaviors are: 1844 * Able to scan and finding all the available AP 1845 * Not able to associate with any AP 1846 * On those platforms, WiFi communication can be restored by set 1847 * "bt_coex_active" module parameter to "false" 1848 * 1849 * default: bt_coex_active = true (BT_COEX_ENABLE) 1850 */ 1851 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1852 bool, 0444); 1853 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1854 1855 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444); 1856 MODULE_PARM_DESC(led_mode, "0=system default, " 1857 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1858 1859 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444); 1860 MODULE_PARM_DESC(power_save, 1861 "enable WiFi power management (default: disable)"); 1862 1863 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444); 1864 MODULE_PARM_DESC(power_level, 1865 "default power save level (range from 1 - 5, default: 1)"); 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