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