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 * 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 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24 * USA 25 * 26 * The full GNU General Public License is included in this distribution 27 * in the file called COPYING. 28 * 29 * Contact Information: 30 * Intel Linux Wireless <linuxwifi@intel.com> 31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 32 * 33 * BSD LICENSE 34 * 35 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. 36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 37 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 38 * All rights reserved. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 44 * * Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * * Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in 48 * the documentation and/or other materials provided with the 49 * distribution. 50 * * Neither the name Intel Corporation nor the names of its 51 * contributors may be used to endorse or promote products derived 52 * from this software without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65 * 66 *****************************************************************************/ 67 #include <linux/completion.h> 68 #include <linux/dma-mapping.h> 69 #include <linux/firmware.h> 70 #include <linux/module.h> 71 #include <linux/vmalloc.h> 72 73 #include "iwl-drv.h" 74 #include "iwl-csr.h" 75 #include "iwl-debug.h" 76 #include "iwl-trans.h" 77 #include "iwl-op-mode.h" 78 #include "iwl-agn-hw.h" 79 #include "fw/img.h" 80 #include "iwl-config.h" 81 #include "iwl-modparams.h" 82 83 /****************************************************************************** 84 * 85 * module boiler plate 86 * 87 ******************************************************************************/ 88 89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" 90 MODULE_DESCRIPTION(DRV_DESCRIPTION); 91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); 92 MODULE_LICENSE("GPL"); 93 94 #ifdef CONFIG_IWLWIFI_DEBUGFS 95 static struct dentry *iwl_dbgfs_root; 96 #endif 97 98 /** 99 * struct iwl_drv - drv common data 100 * @list: list of drv structures using this opmode 101 * @fw: the iwl_fw structure 102 * @op_mode: the running op_mode 103 * @trans: transport layer 104 * @dev: for debug prints only 105 * @fw_index: firmware revision to try loading 106 * @firmware_name: composite filename of ucode file to load 107 * @request_firmware_complete: the firmware has been obtained from user space 108 */ 109 struct iwl_drv { 110 struct list_head list; 111 struct iwl_fw fw; 112 113 struct iwl_op_mode *op_mode; 114 struct iwl_trans *trans; 115 struct device *dev; 116 117 int fw_index; /* firmware we're trying to load */ 118 char firmware_name[64]; /* name of firmware file to load */ 119 120 struct completion request_firmware_complete; 121 122 #ifdef CONFIG_IWLWIFI_DEBUGFS 123 struct dentry *dbgfs_drv; 124 struct dentry *dbgfs_trans; 125 struct dentry *dbgfs_op_mode; 126 #endif 127 }; 128 129 enum { 130 DVM_OP_MODE, 131 MVM_OP_MODE, 132 }; 133 134 /* Protects the table contents, i.e. the ops pointer & drv list */ 135 static struct mutex iwlwifi_opmode_table_mtx; 136 static struct iwlwifi_opmode_table { 137 const char *name; /* name: iwldvm, iwlmvm, etc */ 138 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ 139 struct list_head drv; /* list of devices using this op_mode */ 140 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ 141 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL }, 142 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL }, 143 }; 144 145 #define IWL_DEFAULT_SCAN_CHANNELS 40 146 147 /* 148 * struct fw_sec: Just for the image parsing process. 149 * For the fw storage we are using struct fw_desc. 150 */ 151 struct fw_sec { 152 const void *data; /* the sec data */ 153 size_t size; /* section size */ 154 u32 offset; /* offset of writing in the device */ 155 }; 156 157 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) 158 { 159 vfree(desc->data); 160 desc->data = NULL; 161 desc->len = 0; 162 } 163 164 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) 165 { 166 int i; 167 for (i = 0; i < img->num_sec; i++) 168 iwl_free_fw_desc(drv, &img->sec[i]); 169 kfree(img->sec); 170 } 171 172 static void iwl_dealloc_ucode(struct iwl_drv *drv) 173 { 174 int i; 175 176 kfree(drv->fw.dbg_dest_tlv); 177 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) 178 kfree(drv->fw.dbg_conf_tlv[i]); 179 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) 180 kfree(drv->fw.dbg_trigger_tlv[i]); 181 kfree(drv->fw.dbg_mem_tlv); 182 kfree(drv->fw.iml); 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 const char *fw_pre_name; 218 219 if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 && 220 (CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP || 221 CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_C_STEP)) 222 fw_pre_name = cfg->fw_name_pre_b_or_c_step; 223 else if (drv->trans->cfg->integrated && 224 CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP && 225 cfg->fw_name_pre_rf_next_step) 226 fw_pre_name = cfg->fw_name_pre_rf_next_step; 227 else 228 fw_pre_name = cfg->fw_name_pre; 229 230 if (first) { 231 drv->fw_index = cfg->ucode_api_max; 232 sprintf(tag, "%d", drv->fw_index); 233 } else { 234 drv->fw_index--; 235 sprintf(tag, "%d", drv->fw_index); 236 } 237 238 if (drv->fw_index < cfg->ucode_api_min) { 239 IWL_ERR(drv, "no suitable firmware found!\n"); 240 241 if (cfg->ucode_api_min == cfg->ucode_api_max) { 242 IWL_ERR(drv, "%s%d is required\n", fw_pre_name, 243 cfg->ucode_api_max); 244 } else { 245 IWL_ERR(drv, "minimum version required: %s%d\n", 246 fw_pre_name, 247 cfg->ucode_api_min); 248 IWL_ERR(drv, "maximum version supported: %s%d\n", 249 fw_pre_name, 250 cfg->ucode_api_max); 251 } 252 253 IWL_ERR(drv, 254 "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n"); 255 return -ENOENT; 256 } 257 258 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", 259 fw_pre_name, tag); 260 261 IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n", 262 drv->firmware_name); 263 264 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 265 drv->trans->dev, 266 GFP_KERNEL, drv, iwl_req_fw_callback); 267 } 268 269 struct fw_img_parsing { 270 struct fw_sec *sec; 271 int sec_counter; 272 }; 273 274 /* 275 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 276 */ 277 struct fw_sec_parsing { 278 __le32 offset; 279 const u8 data[]; 280 } __packed; 281 282 /** 283 * struct iwl_tlv_calib_data - parse the default calib data from TLV 284 * 285 * @ucode_type: the uCode to which the following default calib relates. 286 * @calib: default calibrations. 287 */ 288 struct iwl_tlv_calib_data { 289 __le32 ucode_type; 290 struct iwl_tlv_calib_ctrl calib; 291 } __packed; 292 293 struct iwl_firmware_pieces { 294 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 295 296 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 297 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 298 299 /* FW debug data parsed for driver usage */ 300 bool dbg_dest_tlv_init; 301 u8 *dbg_dest_ver; 302 union { 303 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 304 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1; 305 }; 306 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 307 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 308 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 309 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 310 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv; 311 size_t n_dbg_mem_tlv; 312 }; 313 314 /* 315 * These functions are just to extract uCode section data from the pieces 316 * structure. 317 */ 318 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 319 enum iwl_ucode_type type, 320 int sec) 321 { 322 return &pieces->img[type].sec[sec]; 323 } 324 325 static void alloc_sec_data(struct iwl_firmware_pieces *pieces, 326 enum iwl_ucode_type type, 327 int sec) 328 { 329 struct fw_img_parsing *img = &pieces->img[type]; 330 struct fw_sec *sec_memory; 331 int size = sec + 1; 332 size_t alloc_size = sizeof(*img->sec) * size; 333 334 if (img->sec && img->sec_counter >= size) 335 return; 336 337 sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL); 338 if (!sec_memory) 339 return; 340 341 img->sec = sec_memory; 342 img->sec_counter = size; 343 } 344 345 static void set_sec_data(struct iwl_firmware_pieces *pieces, 346 enum iwl_ucode_type type, 347 int sec, 348 const void *data) 349 { 350 alloc_sec_data(pieces, type, sec); 351 352 pieces->img[type].sec[sec].data = data; 353 } 354 355 static void set_sec_size(struct iwl_firmware_pieces *pieces, 356 enum iwl_ucode_type type, 357 int sec, 358 size_t size) 359 { 360 alloc_sec_data(pieces, type, sec); 361 362 pieces->img[type].sec[sec].size = size; 363 } 364 365 static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 366 enum iwl_ucode_type type, 367 int sec) 368 { 369 return pieces->img[type].sec[sec].size; 370 } 371 372 static void set_sec_offset(struct iwl_firmware_pieces *pieces, 373 enum iwl_ucode_type type, 374 int sec, 375 u32 offset) 376 { 377 alloc_sec_data(pieces, type, sec); 378 379 pieces->img[type].sec[sec].offset = offset; 380 } 381 382 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) 383 { 384 int i, j; 385 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; 386 struct iwl_fw_cipher_scheme *fwcs; 387 388 if (len < sizeof(*l) || 389 len < sizeof(l->size) + l->size * sizeof(l->cs[0])) 390 return -EINVAL; 391 392 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { 393 fwcs = &l->cs[j]; 394 395 /* we skip schemes with zero cipher suite selector */ 396 if (!fwcs->cipher) 397 continue; 398 399 fw->cs[j++] = *fwcs; 400 } 401 402 return 0; 403 } 404 405 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data, 406 const u32 len) 407 { 408 struct iwl_fw_gscan_capabilities *fw_capa = (void *)data; 409 struct iwl_gscan_capabilities *capa = &fw->gscan_capa; 410 411 capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size); 412 capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets); 413 capa->max_ap_cache_per_scan = 414 le32_to_cpu(fw_capa->max_ap_cache_per_scan); 415 capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size); 416 capa->max_scan_reporting_threshold = 417 le32_to_cpu(fw_capa->max_scan_reporting_threshold); 418 capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps); 419 capa->max_significant_change_aps = 420 le32_to_cpu(fw_capa->max_significant_change_aps); 421 capa->max_bssid_history_entries = 422 le32_to_cpu(fw_capa->max_bssid_history_entries); 423 capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids); 424 capa->max_number_epno_networks = 425 le32_to_cpu(fw_capa->max_number_epno_networks); 426 capa->max_number_epno_networks_by_ssid = 427 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid); 428 capa->max_number_of_white_listed_ssid = 429 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid); 430 capa->max_number_of_black_listed_ssid = 431 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid); 432 } 433 434 /* 435 * Gets uCode section from tlv. 436 */ 437 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 438 const void *data, enum iwl_ucode_type type, 439 int size) 440 { 441 struct fw_img_parsing *img; 442 struct fw_sec *sec; 443 struct fw_sec_parsing *sec_parse; 444 size_t alloc_size; 445 446 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 447 return -1; 448 449 sec_parse = (struct fw_sec_parsing *)data; 450 451 img = &pieces->img[type]; 452 453 alloc_size = sizeof(*img->sec) * (img->sec_counter + 1); 454 sec = krealloc(img->sec, alloc_size, GFP_KERNEL); 455 if (!sec) 456 return -ENOMEM; 457 img->sec = sec; 458 459 sec = &img->sec[img->sec_counter]; 460 461 sec->offset = le32_to_cpu(sec_parse->offset); 462 sec->data = sec_parse->data; 463 sec->size = size - sizeof(sec_parse->offset); 464 465 ++img->sec_counter; 466 467 return 0; 468 } 469 470 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 471 { 472 struct iwl_tlv_calib_data *def_calib = 473 (struct iwl_tlv_calib_data *)data; 474 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 475 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 476 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 477 ucode_type); 478 return -EINVAL; 479 } 480 drv->fw.default_calib[ucode_type].flow_trigger = 481 def_calib->calib.flow_trigger; 482 drv->fw.default_calib[ucode_type].event_trigger = 483 def_calib->calib.event_trigger; 484 485 return 0; 486 } 487 488 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 489 struct iwl_ucode_capabilities *capa) 490 { 491 const struct iwl_ucode_api *ucode_api = (void *)data; 492 u32 api_index = le32_to_cpu(ucode_api->api_index); 493 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 494 int i; 495 496 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 497 IWL_WARN(drv, 498 "api flags index %d larger than supported by driver\n", 499 api_index); 500 return; 501 } 502 503 for (i = 0; i < 32; i++) { 504 if (api_flags & BIT(i)) 505 __set_bit(i + 32 * api_index, capa->_api); 506 } 507 } 508 509 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 510 struct iwl_ucode_capabilities *capa) 511 { 512 const struct iwl_ucode_capa *ucode_capa = (void *)data; 513 u32 api_index = le32_to_cpu(ucode_capa->api_index); 514 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 515 int i; 516 517 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 518 IWL_WARN(drv, 519 "capa flags index %d larger than supported by driver\n", 520 api_index); 521 return; 522 } 523 524 for (i = 0; i < 32; i++) { 525 if (api_flags & BIT(i)) 526 __set_bit(i + 32 * api_index, capa->_capa); 527 } 528 } 529 530 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 531 const struct firmware *ucode_raw, 532 struct iwl_firmware_pieces *pieces) 533 { 534 struct iwl_ucode_header *ucode = (void *)ucode_raw->data; 535 u32 api_ver, hdr_size, build; 536 char buildstr[25]; 537 const u8 *src; 538 539 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 540 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 541 542 switch (api_ver) { 543 default: 544 hdr_size = 28; 545 if (ucode_raw->size < hdr_size) { 546 IWL_ERR(drv, "File size too small!\n"); 547 return -EINVAL; 548 } 549 build = le32_to_cpu(ucode->u.v2.build); 550 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 551 le32_to_cpu(ucode->u.v2.inst_size)); 552 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 553 le32_to_cpu(ucode->u.v2.data_size)); 554 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 555 le32_to_cpu(ucode->u.v2.init_size)); 556 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 557 le32_to_cpu(ucode->u.v2.init_data_size)); 558 src = ucode->u.v2.data; 559 break; 560 case 0: 561 case 1: 562 case 2: 563 hdr_size = 24; 564 if (ucode_raw->size < hdr_size) { 565 IWL_ERR(drv, "File size too small!\n"); 566 return -EINVAL; 567 } 568 build = 0; 569 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 570 le32_to_cpu(ucode->u.v1.inst_size)); 571 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 572 le32_to_cpu(ucode->u.v1.data_size)); 573 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 574 le32_to_cpu(ucode->u.v1.init_size)); 575 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 576 le32_to_cpu(ucode->u.v1.init_data_size)); 577 src = ucode->u.v1.data; 578 break; 579 } 580 581 if (build) 582 sprintf(buildstr, " build %u", build); 583 else 584 buildstr[0] = '\0'; 585 586 snprintf(drv->fw.fw_version, 587 sizeof(drv->fw.fw_version), 588 "%u.%u.%u.%u%s", 589 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 590 IWL_UCODE_MINOR(drv->fw.ucode_ver), 591 IWL_UCODE_API(drv->fw.ucode_ver), 592 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 593 buildstr); 594 595 /* Verify size of file vs. image size info in file's header */ 596 597 if (ucode_raw->size != hdr_size + 598 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 599 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 600 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 601 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 602 603 IWL_ERR(drv, 604 "uCode file size %d does not match expected size\n", 605 (int)ucode_raw->size); 606 return -EINVAL; 607 } 608 609 610 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 611 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 612 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 613 IWLAGN_RTC_INST_LOWER_BOUND); 614 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 615 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 616 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 617 IWLAGN_RTC_DATA_LOWER_BOUND); 618 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 619 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 620 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 621 IWLAGN_RTC_INST_LOWER_BOUND); 622 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 623 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 624 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 625 IWLAGN_RTC_DATA_LOWER_BOUND); 626 return 0; 627 } 628 629 static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 630 const struct firmware *ucode_raw, 631 struct iwl_firmware_pieces *pieces, 632 struct iwl_ucode_capabilities *capa, 633 bool *usniffer_images) 634 { 635 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; 636 struct iwl_ucode_tlv *tlv; 637 size_t len = ucode_raw->size; 638 const u8 *data; 639 u32 tlv_len; 640 u32 usniffer_img; 641 enum iwl_ucode_tlv_type tlv_type; 642 const u8 *tlv_data; 643 char buildstr[25]; 644 u32 build, paging_mem_size; 645 int num_of_cpus; 646 bool usniffer_req = false; 647 bool gscan_capa = false; 648 649 if (len < sizeof(*ucode)) { 650 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 651 return -EINVAL; 652 } 653 654 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 655 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 656 le32_to_cpu(ucode->magic)); 657 return -EINVAL; 658 } 659 660 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 661 memcpy(drv->fw.human_readable, ucode->human_readable, 662 sizeof(drv->fw.human_readable)); 663 build = le32_to_cpu(ucode->build); 664 665 if (build) 666 sprintf(buildstr, " build %u", build); 667 else 668 buildstr[0] = '\0'; 669 670 snprintf(drv->fw.fw_version, 671 sizeof(drv->fw.fw_version), 672 "%u.%u.%u.%u%s", 673 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 674 IWL_UCODE_MINOR(drv->fw.ucode_ver), 675 IWL_UCODE_API(drv->fw.ucode_ver), 676 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 677 buildstr); 678 679 data = ucode->data; 680 681 len -= sizeof(*ucode); 682 683 while (len >= sizeof(*tlv)) { 684 len -= sizeof(*tlv); 685 tlv = (void *)data; 686 687 tlv_len = le32_to_cpu(tlv->length); 688 tlv_type = le32_to_cpu(tlv->type); 689 tlv_data = tlv->data; 690 691 if (len < tlv_len) { 692 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 693 len, tlv_len); 694 return -EINVAL; 695 } 696 len -= ALIGN(tlv_len, 4); 697 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 698 699 switch (tlv_type) { 700 case IWL_UCODE_TLV_INST: 701 set_sec_data(pieces, IWL_UCODE_REGULAR, 702 IWL_UCODE_SECTION_INST, tlv_data); 703 set_sec_size(pieces, IWL_UCODE_REGULAR, 704 IWL_UCODE_SECTION_INST, tlv_len); 705 set_sec_offset(pieces, IWL_UCODE_REGULAR, 706 IWL_UCODE_SECTION_INST, 707 IWLAGN_RTC_INST_LOWER_BOUND); 708 break; 709 case IWL_UCODE_TLV_DATA: 710 set_sec_data(pieces, IWL_UCODE_REGULAR, 711 IWL_UCODE_SECTION_DATA, tlv_data); 712 set_sec_size(pieces, IWL_UCODE_REGULAR, 713 IWL_UCODE_SECTION_DATA, tlv_len); 714 set_sec_offset(pieces, IWL_UCODE_REGULAR, 715 IWL_UCODE_SECTION_DATA, 716 IWLAGN_RTC_DATA_LOWER_BOUND); 717 break; 718 case IWL_UCODE_TLV_INIT: 719 set_sec_data(pieces, IWL_UCODE_INIT, 720 IWL_UCODE_SECTION_INST, tlv_data); 721 set_sec_size(pieces, IWL_UCODE_INIT, 722 IWL_UCODE_SECTION_INST, tlv_len); 723 set_sec_offset(pieces, IWL_UCODE_INIT, 724 IWL_UCODE_SECTION_INST, 725 IWLAGN_RTC_INST_LOWER_BOUND); 726 break; 727 case IWL_UCODE_TLV_INIT_DATA: 728 set_sec_data(pieces, IWL_UCODE_INIT, 729 IWL_UCODE_SECTION_DATA, tlv_data); 730 set_sec_size(pieces, IWL_UCODE_INIT, 731 IWL_UCODE_SECTION_DATA, tlv_len); 732 set_sec_offset(pieces, IWL_UCODE_INIT, 733 IWL_UCODE_SECTION_DATA, 734 IWLAGN_RTC_DATA_LOWER_BOUND); 735 break; 736 case IWL_UCODE_TLV_BOOT: 737 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 738 break; 739 case IWL_UCODE_TLV_PROBE_MAX_LEN: 740 if (tlv_len != sizeof(u32)) 741 goto invalid_tlv_len; 742 capa->max_probe_length = 743 le32_to_cpup((__le32 *)tlv_data); 744 break; 745 case IWL_UCODE_TLV_PAN: 746 if (tlv_len) 747 goto invalid_tlv_len; 748 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 749 break; 750 case IWL_UCODE_TLV_FLAGS: 751 /* must be at least one u32 */ 752 if (tlv_len < sizeof(u32)) 753 goto invalid_tlv_len; 754 /* and a proper number of u32s */ 755 if (tlv_len % sizeof(u32)) 756 goto invalid_tlv_len; 757 /* 758 * This driver only reads the first u32 as 759 * right now no more features are defined, 760 * if that changes then either the driver 761 * will not work with the new firmware, or 762 * it'll not take advantage of new features. 763 */ 764 capa->flags = le32_to_cpup((__le32 *)tlv_data); 765 break; 766 case IWL_UCODE_TLV_API_CHANGES_SET: 767 if (tlv_len != sizeof(struct iwl_ucode_api)) 768 goto invalid_tlv_len; 769 iwl_set_ucode_api_flags(drv, tlv_data, capa); 770 break; 771 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 772 if (tlv_len != sizeof(struct iwl_ucode_capa)) 773 goto invalid_tlv_len; 774 iwl_set_ucode_capabilities(drv, tlv_data, capa); 775 break; 776 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 777 if (tlv_len != sizeof(u32)) 778 goto invalid_tlv_len; 779 pieces->init_evtlog_ptr = 780 le32_to_cpup((__le32 *)tlv_data); 781 break; 782 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 783 if (tlv_len != sizeof(u32)) 784 goto invalid_tlv_len; 785 pieces->init_evtlog_size = 786 le32_to_cpup((__le32 *)tlv_data); 787 break; 788 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 789 if (tlv_len != sizeof(u32)) 790 goto invalid_tlv_len; 791 pieces->init_errlog_ptr = 792 le32_to_cpup((__le32 *)tlv_data); 793 break; 794 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 795 if (tlv_len != sizeof(u32)) 796 goto invalid_tlv_len; 797 pieces->inst_evtlog_ptr = 798 le32_to_cpup((__le32 *)tlv_data); 799 break; 800 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 801 if (tlv_len != sizeof(u32)) 802 goto invalid_tlv_len; 803 pieces->inst_evtlog_size = 804 le32_to_cpup((__le32 *)tlv_data); 805 break; 806 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 807 if (tlv_len != sizeof(u32)) 808 goto invalid_tlv_len; 809 pieces->inst_errlog_ptr = 810 le32_to_cpup((__le32 *)tlv_data); 811 break; 812 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 813 if (tlv_len) 814 goto invalid_tlv_len; 815 drv->fw.enhance_sensitivity_table = true; 816 break; 817 case IWL_UCODE_TLV_WOWLAN_INST: 818 set_sec_data(pieces, IWL_UCODE_WOWLAN, 819 IWL_UCODE_SECTION_INST, tlv_data); 820 set_sec_size(pieces, IWL_UCODE_WOWLAN, 821 IWL_UCODE_SECTION_INST, tlv_len); 822 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 823 IWL_UCODE_SECTION_INST, 824 IWLAGN_RTC_INST_LOWER_BOUND); 825 break; 826 case IWL_UCODE_TLV_WOWLAN_DATA: 827 set_sec_data(pieces, IWL_UCODE_WOWLAN, 828 IWL_UCODE_SECTION_DATA, tlv_data); 829 set_sec_size(pieces, IWL_UCODE_WOWLAN, 830 IWL_UCODE_SECTION_DATA, tlv_len); 831 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 832 IWL_UCODE_SECTION_DATA, 833 IWLAGN_RTC_DATA_LOWER_BOUND); 834 break; 835 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 836 if (tlv_len != sizeof(u32)) 837 goto invalid_tlv_len; 838 capa->standard_phy_calibration_size = 839 le32_to_cpup((__le32 *)tlv_data); 840 break; 841 case IWL_UCODE_TLV_SEC_RT: 842 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 843 tlv_len); 844 drv->fw.type = IWL_FW_MVM; 845 break; 846 case IWL_UCODE_TLV_SEC_INIT: 847 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 848 tlv_len); 849 drv->fw.type = IWL_FW_MVM; 850 break; 851 case IWL_UCODE_TLV_SEC_WOWLAN: 852 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 853 tlv_len); 854 drv->fw.type = IWL_FW_MVM; 855 break; 856 case IWL_UCODE_TLV_DEF_CALIB: 857 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 858 goto invalid_tlv_len; 859 if (iwl_set_default_calib(drv, tlv_data)) 860 goto tlv_error; 861 break; 862 case IWL_UCODE_TLV_PHY_SKU: 863 if (tlv_len != sizeof(u32)) 864 goto invalid_tlv_len; 865 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); 866 drv->fw.valid_tx_ant = (drv->fw.phy_config & 867 FW_PHY_CFG_TX_CHAIN) >> 868 FW_PHY_CFG_TX_CHAIN_POS; 869 drv->fw.valid_rx_ant = (drv->fw.phy_config & 870 FW_PHY_CFG_RX_CHAIN) >> 871 FW_PHY_CFG_RX_CHAIN_POS; 872 break; 873 case IWL_UCODE_TLV_SECURE_SEC_RT: 874 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 875 tlv_len); 876 drv->fw.type = IWL_FW_MVM; 877 break; 878 case IWL_UCODE_TLV_SECURE_SEC_INIT: 879 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 880 tlv_len); 881 drv->fw.type = IWL_FW_MVM; 882 break; 883 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 884 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 885 tlv_len); 886 drv->fw.type = IWL_FW_MVM; 887 break; 888 case IWL_UCODE_TLV_NUM_OF_CPU: 889 if (tlv_len != sizeof(u32)) 890 goto invalid_tlv_len; 891 num_of_cpus = 892 le32_to_cpup((__le32 *)tlv_data); 893 894 if (num_of_cpus == 2) { 895 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 896 true; 897 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 898 true; 899 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 900 true; 901 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 902 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 903 return -EINVAL; 904 } 905 break; 906 case IWL_UCODE_TLV_CSCHEME: 907 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) 908 goto invalid_tlv_len; 909 break; 910 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 911 if (tlv_len != sizeof(u32)) 912 goto invalid_tlv_len; 913 capa->n_scan_channels = 914 le32_to_cpup((__le32 *)tlv_data); 915 break; 916 case IWL_UCODE_TLV_FW_VERSION: { 917 __le32 *ptr = (void *)tlv_data; 918 u32 major, minor; 919 u8 local_comp; 920 921 if (tlv_len != sizeof(u32) * 3) 922 goto invalid_tlv_len; 923 924 major = le32_to_cpup(ptr++); 925 minor = le32_to_cpup(ptr++); 926 local_comp = le32_to_cpup(ptr); 927 928 if (major >= 35) 929 snprintf(drv->fw.fw_version, 930 sizeof(drv->fw.fw_version), 931 "%u.%08x.%u", major, minor, local_comp); 932 else 933 snprintf(drv->fw.fw_version, 934 sizeof(drv->fw.fw_version), 935 "%u.%u.%u", major, minor, local_comp); 936 break; 937 } 938 case IWL_UCODE_TLV_FW_DBG_DEST: { 939 struct iwl_fw_dbg_dest_tlv *dest = NULL; 940 struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL; 941 u8 mon_mode; 942 943 pieces->dbg_dest_ver = (u8 *)tlv_data; 944 if (*pieces->dbg_dest_ver == 1) { 945 dest = (void *)tlv_data; 946 } else if (*pieces->dbg_dest_ver == 0) { 947 dest_v1 = (void *)tlv_data; 948 } else { 949 IWL_ERR(drv, 950 "The version is %d, and it is invalid\n", 951 *pieces->dbg_dest_ver); 952 break; 953 } 954 955 if (pieces->dbg_dest_tlv_init) { 956 IWL_ERR(drv, 957 "dbg destination ignored, already exists\n"); 958 break; 959 } 960 961 pieces->dbg_dest_tlv_init = true; 962 963 if (dest_v1) { 964 pieces->dbg_dest_tlv_v1 = dest_v1; 965 mon_mode = dest_v1->monitor_mode; 966 } else { 967 pieces->dbg_dest_tlv = dest; 968 mon_mode = dest->monitor_mode; 969 } 970 971 IWL_INFO(drv, "Found debug destination: %s\n", 972 get_fw_dbg_mode_string(mon_mode)); 973 974 drv->fw.dbg_dest_reg_num = (dest_v1) ? 975 tlv_len - 976 offsetof(struct iwl_fw_dbg_dest_tlv_v1, 977 reg_ops) : 978 tlv_len - 979 offsetof(struct iwl_fw_dbg_dest_tlv, 980 reg_ops); 981 982 drv->fw.dbg_dest_reg_num /= 983 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]); 984 985 break; 986 } 987 case IWL_UCODE_TLV_FW_DBG_CONF: { 988 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; 989 990 if (!pieces->dbg_dest_tlv_init) { 991 IWL_ERR(drv, 992 "Ignore dbg config %d - no destination configured\n", 993 conf->id); 994 break; 995 } 996 997 if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) { 998 IWL_ERR(drv, 999 "Skip unknown configuration: %d\n", 1000 conf->id); 1001 break; 1002 } 1003 1004 if (pieces->dbg_conf_tlv[conf->id]) { 1005 IWL_ERR(drv, 1006 "Ignore duplicate dbg config %d\n", 1007 conf->id); 1008 break; 1009 } 1010 1011 if (conf->usniffer) 1012 usniffer_req = true; 1013 1014 IWL_INFO(drv, "Found debug configuration: %d\n", 1015 conf->id); 1016 1017 pieces->dbg_conf_tlv[conf->id] = conf; 1018 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 1019 break; 1020 } 1021 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 1022 struct iwl_fw_dbg_trigger_tlv *trigger = 1023 (void *)tlv_data; 1024 u32 trigger_id = le32_to_cpu(trigger->id); 1025 1026 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) { 1027 IWL_ERR(drv, 1028 "Skip unknown trigger: %u\n", 1029 trigger->id); 1030 break; 1031 } 1032 1033 if (pieces->dbg_trigger_tlv[trigger_id]) { 1034 IWL_ERR(drv, 1035 "Ignore duplicate dbg trigger %u\n", 1036 trigger->id); 1037 break; 1038 } 1039 1040 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 1041 1042 pieces->dbg_trigger_tlv[trigger_id] = trigger; 1043 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 1044 break; 1045 } 1046 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 1047 *usniffer_images = true; 1048 iwl_store_ucode_sec(pieces, tlv_data, 1049 IWL_UCODE_REGULAR_USNIFFER, 1050 tlv_len); 1051 break; 1052 case IWL_UCODE_TLV_PAGING: 1053 if (tlv_len != sizeof(u32)) 1054 goto invalid_tlv_len; 1055 paging_mem_size = le32_to_cpup((__le32 *)tlv_data); 1056 1057 IWL_DEBUG_FW(drv, 1058 "Paging: paging enabled (size = %u bytes)\n", 1059 paging_mem_size); 1060 1061 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 1062 IWL_ERR(drv, 1063 "Paging: driver supports up to %lu bytes for paging image\n", 1064 MAX_PAGING_IMAGE_SIZE); 1065 return -EINVAL; 1066 } 1067 1068 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1069 IWL_ERR(drv, 1070 "Paging: image isn't multiple %lu\n", 1071 FW_PAGING_SIZE); 1072 return -EINVAL; 1073 } 1074 1075 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1076 paging_mem_size; 1077 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1078 drv->fw.img[usniffer_img].paging_mem_size = 1079 paging_mem_size; 1080 break; 1081 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1082 /* 1083 * Don't return an error in case of a shorter tlv_len 1084 * to enable loading of FW that has an old format 1085 * of GSCAN capabilities TLV. 1086 */ 1087 if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities)) 1088 break; 1089 1090 iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len); 1091 gscan_capa = true; 1092 break; 1093 case IWL_UCODE_TLV_FW_MEM_SEG: { 1094 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = 1095 (void *)tlv_data; 1096 u32 type; 1097 size_t size; 1098 struct iwl_fw_dbg_mem_seg_tlv *n; 1099 1100 if (tlv_len != (sizeof(*dbg_mem))) 1101 goto invalid_tlv_len; 1102 1103 type = le32_to_cpu(dbg_mem->data_type); 1104 1105 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", 1106 dbg_mem->data_type); 1107 1108 switch (type & FW_DBG_MEM_TYPE_MASK) { 1109 case FW_DBG_MEM_TYPE_REGULAR: 1110 case FW_DBG_MEM_TYPE_PRPH: 1111 /* we know how to handle these */ 1112 break; 1113 default: 1114 IWL_ERR(drv, 1115 "Found debug memory segment with invalid type: 0x%x\n", 1116 type); 1117 return -EINVAL; 1118 } 1119 1120 size = sizeof(*pieces->dbg_mem_tlv) * 1121 (pieces->n_dbg_mem_tlv + 1); 1122 n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL); 1123 if (!n) 1124 return -ENOMEM; 1125 pieces->dbg_mem_tlv = n; 1126 pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem; 1127 pieces->n_dbg_mem_tlv++; 1128 break; 1129 } 1130 case IWL_UCODE_TLV_IML: { 1131 drv->fw.iml_len = tlv_len; 1132 drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL); 1133 if (!drv->fw.iml) 1134 return -ENOMEM; 1135 break; 1136 } 1137 default: 1138 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1139 break; 1140 } 1141 } 1142 1143 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 1144 usniffer_req && !*usniffer_images) { 1145 IWL_ERR(drv, 1146 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1147 return -EINVAL; 1148 } 1149 1150 if (len) { 1151 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1152 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); 1153 return -EINVAL; 1154 } 1155 1156 /* 1157 * If ucode advertises that it supports GSCAN but GSCAN 1158 * capabilities TLV is not present, or if it has an old format, 1159 * warn and continue without GSCAN. 1160 */ 1161 if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) && 1162 !gscan_capa) { 1163 IWL_DEBUG_INFO(drv, 1164 "GSCAN is supported but capabilities TLV is unavailable\n"); 1165 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT, 1166 capa->_capa); 1167 } 1168 1169 return 0; 1170 1171 invalid_tlv_len: 1172 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1173 tlv_error: 1174 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1175 1176 return -EINVAL; 1177 } 1178 1179 static int iwl_alloc_ucode(struct iwl_drv *drv, 1180 struct iwl_firmware_pieces *pieces, 1181 enum iwl_ucode_type type) 1182 { 1183 int i; 1184 struct fw_desc *sec; 1185 1186 sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL); 1187 if (!sec) 1188 return -ENOMEM; 1189 drv->fw.img[type].sec = sec; 1190 drv->fw.img[type].num_sec = pieces->img[type].sec_counter; 1191 1192 for (i = 0; i < pieces->img[type].sec_counter; i++) 1193 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i))) 1194 return -ENOMEM; 1195 1196 return 0; 1197 } 1198 1199 static int validate_sec_sizes(struct iwl_drv *drv, 1200 struct iwl_firmware_pieces *pieces, 1201 const struct iwl_cfg *cfg) 1202 { 1203 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n", 1204 get_sec_size(pieces, IWL_UCODE_REGULAR, 1205 IWL_UCODE_SECTION_INST)); 1206 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n", 1207 get_sec_size(pieces, IWL_UCODE_REGULAR, 1208 IWL_UCODE_SECTION_DATA)); 1209 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n", 1210 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1211 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n", 1212 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1213 1214 /* Verify that uCode images will fit in card's SRAM. */ 1215 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1216 cfg->max_inst_size) { 1217 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n", 1218 get_sec_size(pieces, IWL_UCODE_REGULAR, 1219 IWL_UCODE_SECTION_INST)); 1220 return -1; 1221 } 1222 1223 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1224 cfg->max_data_size) { 1225 IWL_ERR(drv, "uCode data len %zd too large to fit in\n", 1226 get_sec_size(pieces, IWL_UCODE_REGULAR, 1227 IWL_UCODE_SECTION_DATA)); 1228 return -1; 1229 } 1230 1231 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1232 cfg->max_inst_size) { 1233 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n", 1234 get_sec_size(pieces, IWL_UCODE_INIT, 1235 IWL_UCODE_SECTION_INST)); 1236 return -1; 1237 } 1238 1239 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1240 cfg->max_data_size) { 1241 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n", 1242 get_sec_size(pieces, IWL_UCODE_REGULAR, 1243 IWL_UCODE_SECTION_DATA)); 1244 return -1; 1245 } 1246 return 0; 1247 } 1248 1249 static struct iwl_op_mode * 1250 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1251 { 1252 const struct iwl_op_mode_ops *ops = op->ops; 1253 struct dentry *dbgfs_dir = NULL; 1254 struct iwl_op_mode *op_mode = NULL; 1255 1256 #ifdef CONFIG_IWLWIFI_DEBUGFS 1257 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1258 drv->dbgfs_drv); 1259 if (!drv->dbgfs_op_mode) { 1260 IWL_ERR(drv, 1261 "failed to create opmode debugfs directory\n"); 1262 return op_mode; 1263 } 1264 dbgfs_dir = drv->dbgfs_op_mode; 1265 #endif 1266 1267 op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir); 1268 1269 #ifdef CONFIG_IWLWIFI_DEBUGFS 1270 if (!op_mode) { 1271 debugfs_remove_recursive(drv->dbgfs_op_mode); 1272 drv->dbgfs_op_mode = NULL; 1273 } 1274 #endif 1275 1276 return op_mode; 1277 } 1278 1279 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1280 { 1281 /* op_mode can be NULL if its start failed */ 1282 if (drv->op_mode) { 1283 iwl_op_mode_stop(drv->op_mode); 1284 drv->op_mode = NULL; 1285 1286 #ifdef CONFIG_IWLWIFI_DEBUGFS 1287 debugfs_remove_recursive(drv->dbgfs_op_mode); 1288 drv->dbgfs_op_mode = NULL; 1289 #endif 1290 } 1291 } 1292 1293 /** 1294 * iwl_req_fw_callback - callback when firmware was loaded 1295 * 1296 * If loaded successfully, copies the firmware into buffers 1297 * for the card to fetch (via DMA). 1298 */ 1299 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1300 { 1301 struct iwl_drv *drv = context; 1302 struct iwl_fw *fw = &drv->fw; 1303 struct iwl_ucode_header *ucode; 1304 struct iwlwifi_opmode_table *op; 1305 int err; 1306 struct iwl_firmware_pieces *pieces; 1307 const unsigned int api_max = drv->trans->cfg->ucode_api_max; 1308 const unsigned int api_min = drv->trans->cfg->ucode_api_min; 1309 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1310 u32 api_ver; 1311 int i; 1312 bool load_module = false; 1313 bool usniffer_images = false; 1314 1315 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1316 fw->ucode_capa.standard_phy_calibration_size = 1317 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1318 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1319 1320 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1321 if (!pieces) 1322 goto out_free_fw; 1323 1324 if (!ucode_raw) 1325 goto try_again; 1326 1327 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1328 drv->firmware_name, ucode_raw->size); 1329 1330 /* Make sure that we got at least the API version number */ 1331 if (ucode_raw->size < 4) { 1332 IWL_ERR(drv, "File size way too small!\n"); 1333 goto try_again; 1334 } 1335 1336 /* Data from ucode file: header followed by uCode images */ 1337 ucode = (struct iwl_ucode_header *)ucode_raw->data; 1338 1339 if (ucode->ver) 1340 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1341 else 1342 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1343 &fw->ucode_capa, &usniffer_images); 1344 1345 if (err) 1346 goto try_again; 1347 1348 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1349 api_ver = drv->fw.ucode_ver; 1350 else 1351 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1352 1353 /* 1354 * api_ver should match the api version forming part of the 1355 * firmware filename ... but we don't check for that and only rely 1356 * on the API version read from firmware header from here on forward 1357 */ 1358 if (api_ver < api_min || api_ver > api_max) { 1359 IWL_ERR(drv, 1360 "Driver unable to support your firmware API. " 1361 "Driver supports v%u, firmware is v%u.\n", 1362 api_max, api_ver); 1363 goto try_again; 1364 } 1365 1366 /* 1367 * In mvm uCode there is no difference between data and instructions 1368 * sections. 1369 */ 1370 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, 1371 drv->trans->cfg)) 1372 goto try_again; 1373 1374 /* Allocate ucode buffers for card's bus-master loading ... */ 1375 1376 /* Runtime instructions and 2 copies of data: 1377 * 1) unmodified from disk 1378 * 2) backup cache for save/restore during power-downs 1379 */ 1380 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1381 if (iwl_alloc_ucode(drv, pieces, i)) 1382 goto out_free_fw; 1383 1384 if (pieces->dbg_dest_tlv_init) { 1385 size_t dbg_dest_size = sizeof(*drv->fw.dbg_dest_tlv) + 1386 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]) * 1387 drv->fw.dbg_dest_reg_num; 1388 1389 drv->fw.dbg_dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL); 1390 1391 if (!drv->fw.dbg_dest_tlv) 1392 goto out_free_fw; 1393 1394 if (*pieces->dbg_dest_ver == 0) { 1395 memcpy(drv->fw.dbg_dest_tlv, pieces->dbg_dest_tlv_v1, 1396 dbg_dest_size); 1397 } else { 1398 struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv = 1399 drv->fw.dbg_dest_tlv; 1400 1401 dest_tlv->version = pieces->dbg_dest_tlv->version; 1402 dest_tlv->monitor_mode = 1403 pieces->dbg_dest_tlv->monitor_mode; 1404 dest_tlv->size_power = 1405 pieces->dbg_dest_tlv->size_power; 1406 dest_tlv->wrap_count = 1407 pieces->dbg_dest_tlv->wrap_count; 1408 dest_tlv->write_ptr_reg = 1409 pieces->dbg_dest_tlv->write_ptr_reg; 1410 dest_tlv->base_shift = 1411 pieces->dbg_dest_tlv->base_shift; 1412 memcpy(dest_tlv->reg_ops, 1413 pieces->dbg_dest_tlv->reg_ops, 1414 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]) * 1415 drv->fw.dbg_dest_reg_num); 1416 1417 /* In version 1 of the destination tlv, which is 1418 * relevant for internal buffer exclusively, 1419 * the base address is part of given with the length 1420 * of the buffer, and the size shift is give instead of 1421 * end shift. We now store these values in base_reg, 1422 * and end shift, and when dumping the data we'll 1423 * manipulate it for extracting both the length and 1424 * base address */ 1425 dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg; 1426 dest_tlv->end_shift = 1427 pieces->dbg_dest_tlv->size_shift; 1428 } 1429 } 1430 1431 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) { 1432 if (pieces->dbg_conf_tlv[i]) { 1433 drv->fw.dbg_conf_tlv_len[i] = 1434 pieces->dbg_conf_tlv_len[i]; 1435 drv->fw.dbg_conf_tlv[i] = 1436 kmemdup(pieces->dbg_conf_tlv[i], 1437 drv->fw.dbg_conf_tlv_len[i], 1438 GFP_KERNEL); 1439 if (!drv->fw.dbg_conf_tlv[i]) 1440 goto out_free_fw; 1441 } 1442 } 1443 1444 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1445 1446 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1447 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1448 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1449 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1450 sizeof(struct iwl_fw_dbg_trigger_cmd); 1451 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1452 sizeof(struct iwl_fw_dbg_trigger_mlme); 1453 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1454 sizeof(struct iwl_fw_dbg_trigger_stats); 1455 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1456 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1457 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1458 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1459 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1460 sizeof(struct iwl_fw_dbg_trigger_time_event); 1461 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1462 sizeof(struct iwl_fw_dbg_trigger_ba); 1463 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1464 sizeof(struct iwl_fw_dbg_trigger_tdls); 1465 1466 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) { 1467 if (pieces->dbg_trigger_tlv[i]) { 1468 /* 1469 * If the trigger isn't long enough, WARN and exit. 1470 * Someone is trying to debug something and he won't 1471 * be able to catch the bug he is trying to chase. 1472 * We'd better be noisy to be sure he knows what's 1473 * going on. 1474 */ 1475 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1476 (trigger_tlv_sz[i] + 1477 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1478 goto out_free_fw; 1479 drv->fw.dbg_trigger_tlv_len[i] = 1480 pieces->dbg_trigger_tlv_len[i]; 1481 drv->fw.dbg_trigger_tlv[i] = 1482 kmemdup(pieces->dbg_trigger_tlv[i], 1483 drv->fw.dbg_trigger_tlv_len[i], 1484 GFP_KERNEL); 1485 if (!drv->fw.dbg_trigger_tlv[i]) 1486 goto out_free_fw; 1487 } 1488 } 1489 1490 /* Now that we can no longer fail, copy information */ 1491 1492 drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv; 1493 pieces->dbg_mem_tlv = NULL; 1494 drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv; 1495 1496 /* 1497 * The (size - 16) / 12 formula is based on the information recorded 1498 * for each event, which is of mode 1 (including timestamp) for all 1499 * new microcodes that include this information. 1500 */ 1501 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1502 if (pieces->init_evtlog_size) 1503 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1504 else 1505 fw->init_evtlog_size = 1506 drv->trans->cfg->base_params->max_event_log_size; 1507 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1508 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1509 if (pieces->inst_evtlog_size) 1510 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1511 else 1512 fw->inst_evtlog_size = 1513 drv->trans->cfg->base_params->max_event_log_size; 1514 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1515 1516 /* 1517 * figure out the offset of chain noise reset and gain commands 1518 * base on the size of standard phy calibration commands table size 1519 */ 1520 if (fw->ucode_capa.standard_phy_calibration_size > 1521 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1522 fw->ucode_capa.standard_phy_calibration_size = 1523 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1524 1525 /* We have our copies now, allow OS release its copies */ 1526 release_firmware(ucode_raw); 1527 1528 mutex_lock(&iwlwifi_opmode_table_mtx); 1529 switch (fw->type) { 1530 case IWL_FW_DVM: 1531 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1532 break; 1533 default: 1534 WARN(1, "Invalid fw type %d\n", fw->type); 1535 case IWL_FW_MVM: 1536 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1537 break; 1538 } 1539 1540 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1541 drv->fw.fw_version, op->name); 1542 1543 /* add this device to the list of devices using this op_mode */ 1544 list_add_tail(&drv->list, &op->drv); 1545 1546 if (op->ops) { 1547 drv->op_mode = _iwl_op_mode_start(drv, op); 1548 1549 if (!drv->op_mode) { 1550 mutex_unlock(&iwlwifi_opmode_table_mtx); 1551 goto out_unbind; 1552 } 1553 } else { 1554 load_module = true; 1555 } 1556 mutex_unlock(&iwlwifi_opmode_table_mtx); 1557 1558 /* 1559 * Complete the firmware request last so that 1560 * a driver unbind (stop) doesn't run while we 1561 * are doing the start() above. 1562 */ 1563 complete(&drv->request_firmware_complete); 1564 1565 /* 1566 * Load the module last so we don't block anything 1567 * else from proceeding if the module fails to load 1568 * or hangs loading. 1569 */ 1570 if (load_module) { 1571 request_module("%s", op->name); 1572 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR 1573 if (err) 1574 IWL_ERR(drv, 1575 "failed to load module %s (error %d), is dynamic loading enabled?\n", 1576 op->name, err); 1577 #endif 1578 } 1579 goto free; 1580 1581 try_again: 1582 /* try next, if any */ 1583 release_firmware(ucode_raw); 1584 if (iwl_request_firmware(drv, false)) 1585 goto out_unbind; 1586 goto free; 1587 1588 out_free_fw: 1589 iwl_dealloc_ucode(drv); 1590 release_firmware(ucode_raw); 1591 out_unbind: 1592 complete(&drv->request_firmware_complete); 1593 device_release_driver(drv->trans->dev); 1594 free: 1595 if (pieces) { 1596 for (i = 0; i < ARRAY_SIZE(pieces->img); i++) 1597 kfree(pieces->img[i].sec); 1598 kfree(pieces->dbg_mem_tlv); 1599 kfree(pieces); 1600 } 1601 } 1602 1603 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans) 1604 { 1605 struct iwl_drv *drv; 1606 int ret; 1607 1608 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1609 if (!drv) { 1610 ret = -ENOMEM; 1611 goto err; 1612 } 1613 1614 drv->trans = trans; 1615 drv->dev = trans->dev; 1616 1617 init_completion(&drv->request_firmware_complete); 1618 INIT_LIST_HEAD(&drv->list); 1619 1620 #ifdef CONFIG_IWLWIFI_DEBUGFS 1621 /* Create the device debugfs entries. */ 1622 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1623 iwl_dbgfs_root); 1624 1625 if (!drv->dbgfs_drv) { 1626 IWL_ERR(drv, "failed to create debugfs directory\n"); 1627 ret = -ENOMEM; 1628 goto err_free_drv; 1629 } 1630 1631 /* Create transport layer debugfs dir */ 1632 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1633 1634 if (!drv->trans->dbgfs_dir) { 1635 IWL_ERR(drv, "failed to create transport debugfs directory\n"); 1636 ret = -ENOMEM; 1637 goto err_free_dbgfs; 1638 } 1639 #endif 1640 1641 ret = iwl_request_firmware(drv, true); 1642 if (ret) { 1643 IWL_ERR(trans, "Couldn't request the fw\n"); 1644 goto err_fw; 1645 } 1646 1647 return drv; 1648 1649 err_fw: 1650 #ifdef CONFIG_IWLWIFI_DEBUGFS 1651 err_free_dbgfs: 1652 debugfs_remove_recursive(drv->dbgfs_drv); 1653 err_free_drv: 1654 #endif 1655 kfree(drv); 1656 err: 1657 return ERR_PTR(ret); 1658 } 1659 1660 void iwl_drv_stop(struct iwl_drv *drv) 1661 { 1662 wait_for_completion(&drv->request_firmware_complete); 1663 1664 _iwl_op_mode_stop(drv); 1665 1666 iwl_dealloc_ucode(drv); 1667 1668 mutex_lock(&iwlwifi_opmode_table_mtx); 1669 /* 1670 * List is empty (this item wasn't added) 1671 * when firmware loading failed -- in that 1672 * case we can't remove it from any list. 1673 */ 1674 if (!list_empty(&drv->list)) 1675 list_del(&drv->list); 1676 mutex_unlock(&iwlwifi_opmode_table_mtx); 1677 1678 #ifdef CONFIG_IWLWIFI_DEBUGFS 1679 debugfs_remove_recursive(drv->dbgfs_drv); 1680 #endif 1681 1682 kfree(drv); 1683 } 1684 1685 1686 /* shared module parameters */ 1687 struct iwl_mod_params iwlwifi_mod_params = { 1688 .fw_restart = true, 1689 .bt_coex_active = true, 1690 .power_level = IWL_POWER_INDEX_1, 1691 .d0i3_disable = true, 1692 .d0i3_timeout = 1000, 1693 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, 1694 /* the rest are 0 by default */ 1695 }; 1696 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1697 1698 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1699 { 1700 int i; 1701 struct iwl_drv *drv; 1702 struct iwlwifi_opmode_table *op; 1703 1704 mutex_lock(&iwlwifi_opmode_table_mtx); 1705 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1706 op = &iwlwifi_opmode_table[i]; 1707 if (strcmp(op->name, name)) 1708 continue; 1709 op->ops = ops; 1710 /* TODO: need to handle exceptional case */ 1711 list_for_each_entry(drv, &op->drv, list) 1712 drv->op_mode = _iwl_op_mode_start(drv, op); 1713 1714 mutex_unlock(&iwlwifi_opmode_table_mtx); 1715 return 0; 1716 } 1717 mutex_unlock(&iwlwifi_opmode_table_mtx); 1718 return -EIO; 1719 } 1720 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1721 1722 void iwl_opmode_deregister(const char *name) 1723 { 1724 int i; 1725 struct iwl_drv *drv; 1726 1727 mutex_lock(&iwlwifi_opmode_table_mtx); 1728 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1729 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1730 continue; 1731 iwlwifi_opmode_table[i].ops = NULL; 1732 1733 /* call the stop routine for all devices */ 1734 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1735 _iwl_op_mode_stop(drv); 1736 1737 mutex_unlock(&iwlwifi_opmode_table_mtx); 1738 return; 1739 } 1740 mutex_unlock(&iwlwifi_opmode_table_mtx); 1741 } 1742 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1743 1744 static int __init iwl_drv_init(void) 1745 { 1746 int i; 1747 1748 mutex_init(&iwlwifi_opmode_table_mtx); 1749 1750 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1751 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1752 1753 pr_info(DRV_DESCRIPTION "\n"); 1754 pr_info(DRV_COPYRIGHT "\n"); 1755 1756 #ifdef CONFIG_IWLWIFI_DEBUGFS 1757 /* Create the root of iwlwifi debugfs subsystem. */ 1758 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1759 1760 if (!iwl_dbgfs_root) 1761 return -EFAULT; 1762 #endif 1763 1764 return iwl_pci_register_driver(); 1765 } 1766 module_init(iwl_drv_init); 1767 1768 static void __exit iwl_drv_exit(void) 1769 { 1770 iwl_pci_unregister_driver(); 1771 1772 #ifdef CONFIG_IWLWIFI_DEBUGFS 1773 debugfs_remove_recursive(iwl_dbgfs_root); 1774 #endif 1775 } 1776 module_exit(iwl_drv_exit); 1777 1778 #ifdef CONFIG_IWLWIFI_DEBUG 1779 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644); 1780 MODULE_PARM_DESC(debug, "debug output mask"); 1781 #endif 1782 1783 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444); 1784 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1785 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444); 1786 MODULE_PARM_DESC(11n_disable, 1787 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1788 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444); 1789 MODULE_PARM_DESC(amsdu_size, 1790 "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)"); 1791 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444); 1792 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1793 1794 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling, 1795 int, 0444); 1796 MODULE_PARM_DESC(antenna_coupling, 1797 "specify antenna coupling in dB (default: 0 dB)"); 1798 1799 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444); 1800 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1801 1802 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, bool, 0444); 1803 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)"); 1804 1805 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444); 1806 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)"); 1807 1808 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644); 1809 MODULE_PARM_DESC(uapsd_disable, 1810 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); 1811 1812 /* 1813 * set bt_coex_active to true, uCode will do kill/defer 1814 * every time the priority line is asserted (BT is sending signals on the 1815 * priority line in the PCIx). 1816 * set bt_coex_active to false, uCode will ignore the BT activity and 1817 * perform the normal operation 1818 * 1819 * User might experience transmit issue on some platform due to WiFi/BT 1820 * co-exist problem. The possible behaviors are: 1821 * Able to scan and finding all the available AP 1822 * Not able to associate with any AP 1823 * On those platforms, WiFi communication can be restored by set 1824 * "bt_coex_active" module parameter to "false" 1825 * 1826 * default: bt_coex_active = true (BT_COEX_ENABLE) 1827 */ 1828 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1829 bool, 0444); 1830 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1831 1832 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444); 1833 MODULE_PARM_DESC(led_mode, "0=system default, " 1834 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1835 1836 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444); 1837 MODULE_PARM_DESC(power_save, 1838 "enable WiFi power management (default: disable)"); 1839 1840 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444); 1841 MODULE_PARM_DESC(power_level, 1842 "default power save level (range from 1 - 5, default: 1)"); 1843 1844 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444); 1845 MODULE_PARM_DESC(fw_monitor, 1846 "firmware monitor - to debug FW (default: false - needs lots of memory)"); 1847 1848 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout, uint, 0444); 1849 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)"); 1850 1851 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444); 1852 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)"); 1853 1854 module_param_named(remove_when_gone, 1855 iwlwifi_mod_params.remove_when_gone, bool, 1856 0444); 1857 MODULE_PARM_DESC(remove_when_gone, 1858 "Remove dev from PCIe bus if it is deemed inaccessible (default: false)"); 1859