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 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 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 "iwl-fw.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 * @cfg: configuration struct 106 * @fw_index: firmware revision to try loading 107 * @firmware_name: composite filename of ucode file to load 108 * @request_firmware_complete: the firmware has been obtained from user space 109 */ 110 struct iwl_drv { 111 struct list_head list; 112 struct iwl_fw fw; 113 114 struct iwl_op_mode *op_mode; 115 struct iwl_trans *trans; 116 struct device *dev; 117 const struct iwl_cfg *cfg; 118 119 int fw_index; /* firmware we're trying to load */ 120 char firmware_name[64]; /* name of firmware file to load */ 121 122 struct completion request_firmware_complete; 123 124 #ifdef CONFIG_IWLWIFI_DEBUGFS 125 struct dentry *dbgfs_drv; 126 struct dentry *dbgfs_trans; 127 struct dentry *dbgfs_op_mode; 128 #endif 129 }; 130 131 enum { 132 DVM_OP_MODE, 133 MVM_OP_MODE, 134 }; 135 136 /* Protects the table contents, i.e. the ops pointer & drv list */ 137 static struct mutex iwlwifi_opmode_table_mtx; 138 static struct iwlwifi_opmode_table { 139 const char *name; /* name: iwldvm, iwlmvm, etc */ 140 const struct iwl_op_mode_ops *ops; /* pointer to op_mode ops */ 141 struct list_head drv; /* list of devices using this op_mode */ 142 } iwlwifi_opmode_table[] = { /* ops set when driver is initialized */ 143 [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL }, 144 [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL }, 145 }; 146 147 #define IWL_DEFAULT_SCAN_CHANNELS 40 148 149 /* 150 * struct fw_sec: Just for the image parsing process. 151 * For the fw storage we are using struct fw_desc. 152 */ 153 struct fw_sec { 154 const void *data; /* the sec data */ 155 size_t size; /* section size */ 156 u32 offset; /* offset of writing in the device */ 157 }; 158 159 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc) 160 { 161 vfree(desc->data); 162 desc->data = NULL; 163 desc->len = 0; 164 } 165 166 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img) 167 { 168 int i; 169 for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) 170 iwl_free_fw_desc(drv, &img->sec[i]); 171 } 172 173 static void iwl_dealloc_ucode(struct iwl_drv *drv) 174 { 175 int i; 176 177 kfree(drv->fw.dbg_dest_tlv); 178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) 179 kfree(drv->fw.dbg_conf_tlv[i]); 180 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) 181 kfree(drv->fw.dbg_trigger_tlv[i]); 182 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_mem_tlv); i++) 183 kfree(drv->fw.dbg_mem_tlv[i]); 184 185 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 186 iwl_free_fw_img(drv, drv->fw.img + i); 187 } 188 189 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, 190 struct fw_sec *sec) 191 { 192 void *data; 193 194 desc->data = NULL; 195 196 if (!sec || !sec->size) 197 return -EINVAL; 198 199 data = vmalloc(sec->size); 200 if (!data) 201 return -ENOMEM; 202 203 desc->len = sec->size; 204 desc->offset = sec->offset; 205 memcpy(data, sec->data, desc->len); 206 desc->data = data; 207 208 return 0; 209 } 210 211 static void iwl_req_fw_callback(const struct firmware *ucode_raw, 212 void *context); 213 214 static int iwl_request_firmware(struct iwl_drv *drv, bool first) 215 { 216 const char *name_pre = drv->cfg->fw_name_pre; 217 char tag[8]; 218 219 if (first) { 220 drv->fw_index = drv->cfg->ucode_api_max; 221 sprintf(tag, "%d", drv->fw_index); 222 } else { 223 drv->fw_index--; 224 sprintf(tag, "%d", drv->fw_index); 225 } 226 227 if (drv->fw_index < drv->cfg->ucode_api_min) { 228 IWL_ERR(drv, "no suitable firmware found!\n"); 229 return -ENOENT; 230 } 231 232 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", 233 name_pre, tag); 234 235 IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n", 236 drv->firmware_name); 237 238 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 239 drv->trans->dev, 240 GFP_KERNEL, drv, iwl_req_fw_callback); 241 } 242 243 struct fw_img_parsing { 244 struct fw_sec sec[IWL_UCODE_SECTION_MAX]; 245 int sec_counter; 246 }; 247 248 /* 249 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 250 */ 251 struct fw_sec_parsing { 252 __le32 offset; 253 const u8 data[]; 254 } __packed; 255 256 /** 257 * struct iwl_tlv_calib_data - parse the default calib data from TLV 258 * 259 * @ucode_type: the uCode to which the following default calib relates. 260 * @calib: default calibrations. 261 */ 262 struct iwl_tlv_calib_data { 263 __le32 ucode_type; 264 struct iwl_tlv_calib_ctrl calib; 265 } __packed; 266 267 struct iwl_firmware_pieces { 268 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 269 270 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 271 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 272 273 /* FW debug data parsed for driver usage */ 274 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 275 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 276 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 277 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 278 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 279 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv[FW_DBG_MEM_MAX]; 280 }; 281 282 /* 283 * These functions are just to extract uCode section data from the pieces 284 * structure. 285 */ 286 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 287 enum iwl_ucode_type type, 288 int sec) 289 { 290 return &pieces->img[type].sec[sec]; 291 } 292 293 static void set_sec_data(struct iwl_firmware_pieces *pieces, 294 enum iwl_ucode_type type, 295 int sec, 296 const void *data) 297 { 298 pieces->img[type].sec[sec].data = data; 299 } 300 301 static void set_sec_size(struct iwl_firmware_pieces *pieces, 302 enum iwl_ucode_type type, 303 int sec, 304 size_t size) 305 { 306 pieces->img[type].sec[sec].size = size; 307 } 308 309 static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 310 enum iwl_ucode_type type, 311 int sec) 312 { 313 return pieces->img[type].sec[sec].size; 314 } 315 316 static void set_sec_offset(struct iwl_firmware_pieces *pieces, 317 enum iwl_ucode_type type, 318 int sec, 319 u32 offset) 320 { 321 pieces->img[type].sec[sec].offset = offset; 322 } 323 324 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) 325 { 326 int i, j; 327 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; 328 struct iwl_fw_cipher_scheme *fwcs; 329 330 if (len < sizeof(*l) || 331 len < sizeof(l->size) + l->size * sizeof(l->cs[0])) 332 return -EINVAL; 333 334 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { 335 fwcs = &l->cs[j]; 336 337 /* we skip schemes with zero cipher suite selector */ 338 if (!fwcs->cipher) 339 continue; 340 341 fw->cs[j++] = *fwcs; 342 } 343 344 return 0; 345 } 346 347 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data, 348 const u32 len) 349 { 350 struct iwl_fw_gscan_capabilities *fw_capa = (void *)data; 351 struct iwl_gscan_capabilities *capa = &fw->gscan_capa; 352 353 capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size); 354 capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets); 355 capa->max_ap_cache_per_scan = 356 le32_to_cpu(fw_capa->max_ap_cache_per_scan); 357 capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size); 358 capa->max_scan_reporting_threshold = 359 le32_to_cpu(fw_capa->max_scan_reporting_threshold); 360 capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps); 361 capa->max_significant_change_aps = 362 le32_to_cpu(fw_capa->max_significant_change_aps); 363 capa->max_bssid_history_entries = 364 le32_to_cpu(fw_capa->max_bssid_history_entries); 365 capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids); 366 capa->max_number_epno_networks = 367 le32_to_cpu(fw_capa->max_number_epno_networks); 368 capa->max_number_epno_networks_by_ssid = 369 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid); 370 capa->max_number_of_white_listed_ssid = 371 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid); 372 capa->max_number_of_black_listed_ssid = 373 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid); 374 } 375 376 /* 377 * Gets uCode section from tlv. 378 */ 379 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 380 const void *data, enum iwl_ucode_type type, 381 int size) 382 { 383 struct fw_img_parsing *img; 384 struct fw_sec *sec; 385 struct fw_sec_parsing *sec_parse; 386 387 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 388 return -1; 389 390 sec_parse = (struct fw_sec_parsing *)data; 391 392 img = &pieces->img[type]; 393 sec = &img->sec[img->sec_counter]; 394 395 sec->offset = le32_to_cpu(sec_parse->offset); 396 sec->data = sec_parse->data; 397 sec->size = size - sizeof(sec_parse->offset); 398 399 ++img->sec_counter; 400 401 return 0; 402 } 403 404 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 405 { 406 struct iwl_tlv_calib_data *def_calib = 407 (struct iwl_tlv_calib_data *)data; 408 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 409 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 410 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 411 ucode_type); 412 return -EINVAL; 413 } 414 drv->fw.default_calib[ucode_type].flow_trigger = 415 def_calib->calib.flow_trigger; 416 drv->fw.default_calib[ucode_type].event_trigger = 417 def_calib->calib.event_trigger; 418 419 return 0; 420 } 421 422 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 423 struct iwl_ucode_capabilities *capa) 424 { 425 const struct iwl_ucode_api *ucode_api = (void *)data; 426 u32 api_index = le32_to_cpu(ucode_api->api_index); 427 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 428 int i; 429 430 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 431 IWL_ERR(drv, 432 "api flags index %d larger than supported by driver\n", 433 api_index); 434 /* don't return an error so we can load FW that has more bits */ 435 return 0; 436 } 437 438 for (i = 0; i < 32; i++) { 439 if (api_flags & BIT(i)) 440 __set_bit(i + 32 * api_index, capa->_api); 441 } 442 443 return 0; 444 } 445 446 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 447 struct iwl_ucode_capabilities *capa) 448 { 449 const struct iwl_ucode_capa *ucode_capa = (void *)data; 450 u32 api_index = le32_to_cpu(ucode_capa->api_index); 451 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 452 int i; 453 454 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 455 IWL_ERR(drv, 456 "capa flags index %d larger than supported by driver\n", 457 api_index); 458 /* don't return an error so we can load FW that has more bits */ 459 return 0; 460 } 461 462 for (i = 0; i < 32; i++) { 463 if (api_flags & BIT(i)) 464 __set_bit(i + 32 * api_index, capa->_capa); 465 } 466 467 return 0; 468 } 469 470 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 471 const struct firmware *ucode_raw, 472 struct iwl_firmware_pieces *pieces) 473 { 474 struct iwl_ucode_header *ucode = (void *)ucode_raw->data; 475 u32 api_ver, hdr_size, build; 476 char buildstr[25]; 477 const u8 *src; 478 479 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 480 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 481 482 switch (api_ver) { 483 default: 484 hdr_size = 28; 485 if (ucode_raw->size < hdr_size) { 486 IWL_ERR(drv, "File size too small!\n"); 487 return -EINVAL; 488 } 489 build = le32_to_cpu(ucode->u.v2.build); 490 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 491 le32_to_cpu(ucode->u.v2.inst_size)); 492 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 493 le32_to_cpu(ucode->u.v2.data_size)); 494 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 495 le32_to_cpu(ucode->u.v2.init_size)); 496 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 497 le32_to_cpu(ucode->u.v2.init_data_size)); 498 src = ucode->u.v2.data; 499 break; 500 case 0: 501 case 1: 502 case 2: 503 hdr_size = 24; 504 if (ucode_raw->size < hdr_size) { 505 IWL_ERR(drv, "File size too small!\n"); 506 return -EINVAL; 507 } 508 build = 0; 509 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 510 le32_to_cpu(ucode->u.v1.inst_size)); 511 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 512 le32_to_cpu(ucode->u.v1.data_size)); 513 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 514 le32_to_cpu(ucode->u.v1.init_size)); 515 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 516 le32_to_cpu(ucode->u.v1.init_data_size)); 517 src = ucode->u.v1.data; 518 break; 519 } 520 521 if (build) 522 sprintf(buildstr, " build %u", build); 523 else 524 buildstr[0] = '\0'; 525 526 snprintf(drv->fw.fw_version, 527 sizeof(drv->fw.fw_version), 528 "%u.%u.%u.%u%s", 529 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 530 IWL_UCODE_MINOR(drv->fw.ucode_ver), 531 IWL_UCODE_API(drv->fw.ucode_ver), 532 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 533 buildstr); 534 535 /* Verify size of file vs. image size info in file's header */ 536 537 if (ucode_raw->size != hdr_size + 538 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 539 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 540 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 541 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 542 543 IWL_ERR(drv, 544 "uCode file size %d does not match expected size\n", 545 (int)ucode_raw->size); 546 return -EINVAL; 547 } 548 549 550 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 551 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 552 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 553 IWLAGN_RTC_INST_LOWER_BOUND); 554 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 555 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 556 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 557 IWLAGN_RTC_DATA_LOWER_BOUND); 558 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 559 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 560 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 561 IWLAGN_RTC_INST_LOWER_BOUND); 562 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 563 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 564 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 565 IWLAGN_RTC_DATA_LOWER_BOUND); 566 return 0; 567 } 568 569 static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 570 const struct firmware *ucode_raw, 571 struct iwl_firmware_pieces *pieces, 572 struct iwl_ucode_capabilities *capa, 573 bool *usniffer_images) 574 { 575 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; 576 struct iwl_ucode_tlv *tlv; 577 size_t len = ucode_raw->size; 578 const u8 *data; 579 u32 tlv_len; 580 u32 usniffer_img; 581 enum iwl_ucode_tlv_type tlv_type; 582 const u8 *tlv_data; 583 char buildstr[25]; 584 u32 build, paging_mem_size; 585 int num_of_cpus; 586 bool usniffer_req = false; 587 bool gscan_capa = false; 588 589 if (len < sizeof(*ucode)) { 590 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 591 return -EINVAL; 592 } 593 594 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 595 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 596 le32_to_cpu(ucode->magic)); 597 return -EINVAL; 598 } 599 600 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 601 memcpy(drv->fw.human_readable, ucode->human_readable, 602 sizeof(drv->fw.human_readable)); 603 build = le32_to_cpu(ucode->build); 604 605 if (build) 606 sprintf(buildstr, " build %u", build); 607 else 608 buildstr[0] = '\0'; 609 610 snprintf(drv->fw.fw_version, 611 sizeof(drv->fw.fw_version), 612 "%u.%u.%u.%u%s", 613 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 614 IWL_UCODE_MINOR(drv->fw.ucode_ver), 615 IWL_UCODE_API(drv->fw.ucode_ver), 616 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 617 buildstr); 618 619 data = ucode->data; 620 621 len -= sizeof(*ucode); 622 623 while (len >= sizeof(*tlv)) { 624 len -= sizeof(*tlv); 625 tlv = (void *)data; 626 627 tlv_len = le32_to_cpu(tlv->length); 628 tlv_type = le32_to_cpu(tlv->type); 629 tlv_data = tlv->data; 630 631 if (len < tlv_len) { 632 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 633 len, tlv_len); 634 return -EINVAL; 635 } 636 len -= ALIGN(tlv_len, 4); 637 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 638 639 switch (tlv_type) { 640 case IWL_UCODE_TLV_INST: 641 set_sec_data(pieces, IWL_UCODE_REGULAR, 642 IWL_UCODE_SECTION_INST, tlv_data); 643 set_sec_size(pieces, IWL_UCODE_REGULAR, 644 IWL_UCODE_SECTION_INST, tlv_len); 645 set_sec_offset(pieces, IWL_UCODE_REGULAR, 646 IWL_UCODE_SECTION_INST, 647 IWLAGN_RTC_INST_LOWER_BOUND); 648 break; 649 case IWL_UCODE_TLV_DATA: 650 set_sec_data(pieces, IWL_UCODE_REGULAR, 651 IWL_UCODE_SECTION_DATA, tlv_data); 652 set_sec_size(pieces, IWL_UCODE_REGULAR, 653 IWL_UCODE_SECTION_DATA, tlv_len); 654 set_sec_offset(pieces, IWL_UCODE_REGULAR, 655 IWL_UCODE_SECTION_DATA, 656 IWLAGN_RTC_DATA_LOWER_BOUND); 657 break; 658 case IWL_UCODE_TLV_INIT: 659 set_sec_data(pieces, IWL_UCODE_INIT, 660 IWL_UCODE_SECTION_INST, tlv_data); 661 set_sec_size(pieces, IWL_UCODE_INIT, 662 IWL_UCODE_SECTION_INST, tlv_len); 663 set_sec_offset(pieces, IWL_UCODE_INIT, 664 IWL_UCODE_SECTION_INST, 665 IWLAGN_RTC_INST_LOWER_BOUND); 666 break; 667 case IWL_UCODE_TLV_INIT_DATA: 668 set_sec_data(pieces, IWL_UCODE_INIT, 669 IWL_UCODE_SECTION_DATA, tlv_data); 670 set_sec_size(pieces, IWL_UCODE_INIT, 671 IWL_UCODE_SECTION_DATA, tlv_len); 672 set_sec_offset(pieces, IWL_UCODE_INIT, 673 IWL_UCODE_SECTION_DATA, 674 IWLAGN_RTC_DATA_LOWER_BOUND); 675 break; 676 case IWL_UCODE_TLV_BOOT: 677 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 678 break; 679 case IWL_UCODE_TLV_PROBE_MAX_LEN: 680 if (tlv_len != sizeof(u32)) 681 goto invalid_tlv_len; 682 capa->max_probe_length = 683 le32_to_cpup((__le32 *)tlv_data); 684 break; 685 case IWL_UCODE_TLV_PAN: 686 if (tlv_len) 687 goto invalid_tlv_len; 688 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 689 break; 690 case IWL_UCODE_TLV_FLAGS: 691 /* must be at least one u32 */ 692 if (tlv_len < sizeof(u32)) 693 goto invalid_tlv_len; 694 /* and a proper number of u32s */ 695 if (tlv_len % sizeof(u32)) 696 goto invalid_tlv_len; 697 /* 698 * This driver only reads the first u32 as 699 * right now no more features are defined, 700 * if that changes then either the driver 701 * will not work with the new firmware, or 702 * it'll not take advantage of new features. 703 */ 704 capa->flags = le32_to_cpup((__le32 *)tlv_data); 705 break; 706 case IWL_UCODE_TLV_API_CHANGES_SET: 707 if (tlv_len != sizeof(struct iwl_ucode_api)) 708 goto invalid_tlv_len; 709 if (iwl_set_ucode_api_flags(drv, tlv_data, capa)) 710 goto tlv_error; 711 break; 712 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 713 if (tlv_len != sizeof(struct iwl_ucode_capa)) 714 goto invalid_tlv_len; 715 if (iwl_set_ucode_capabilities(drv, tlv_data, capa)) 716 goto tlv_error; 717 break; 718 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 719 if (tlv_len != sizeof(u32)) 720 goto invalid_tlv_len; 721 pieces->init_evtlog_ptr = 722 le32_to_cpup((__le32 *)tlv_data); 723 break; 724 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 725 if (tlv_len != sizeof(u32)) 726 goto invalid_tlv_len; 727 pieces->init_evtlog_size = 728 le32_to_cpup((__le32 *)tlv_data); 729 break; 730 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 731 if (tlv_len != sizeof(u32)) 732 goto invalid_tlv_len; 733 pieces->init_errlog_ptr = 734 le32_to_cpup((__le32 *)tlv_data); 735 break; 736 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 737 if (tlv_len != sizeof(u32)) 738 goto invalid_tlv_len; 739 pieces->inst_evtlog_ptr = 740 le32_to_cpup((__le32 *)tlv_data); 741 break; 742 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 743 if (tlv_len != sizeof(u32)) 744 goto invalid_tlv_len; 745 pieces->inst_evtlog_size = 746 le32_to_cpup((__le32 *)tlv_data); 747 break; 748 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 749 if (tlv_len != sizeof(u32)) 750 goto invalid_tlv_len; 751 pieces->inst_errlog_ptr = 752 le32_to_cpup((__le32 *)tlv_data); 753 break; 754 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 755 if (tlv_len) 756 goto invalid_tlv_len; 757 drv->fw.enhance_sensitivity_table = true; 758 break; 759 case IWL_UCODE_TLV_WOWLAN_INST: 760 set_sec_data(pieces, IWL_UCODE_WOWLAN, 761 IWL_UCODE_SECTION_INST, tlv_data); 762 set_sec_size(pieces, IWL_UCODE_WOWLAN, 763 IWL_UCODE_SECTION_INST, tlv_len); 764 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 765 IWL_UCODE_SECTION_INST, 766 IWLAGN_RTC_INST_LOWER_BOUND); 767 break; 768 case IWL_UCODE_TLV_WOWLAN_DATA: 769 set_sec_data(pieces, IWL_UCODE_WOWLAN, 770 IWL_UCODE_SECTION_DATA, tlv_data); 771 set_sec_size(pieces, IWL_UCODE_WOWLAN, 772 IWL_UCODE_SECTION_DATA, tlv_len); 773 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 774 IWL_UCODE_SECTION_DATA, 775 IWLAGN_RTC_DATA_LOWER_BOUND); 776 break; 777 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 778 if (tlv_len != sizeof(u32)) 779 goto invalid_tlv_len; 780 capa->standard_phy_calibration_size = 781 le32_to_cpup((__le32 *)tlv_data); 782 break; 783 case IWL_UCODE_TLV_SEC_RT: 784 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 785 tlv_len); 786 drv->fw.type = IWL_FW_MVM; 787 break; 788 case IWL_UCODE_TLV_SEC_INIT: 789 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 790 tlv_len); 791 drv->fw.type = IWL_FW_MVM; 792 break; 793 case IWL_UCODE_TLV_SEC_WOWLAN: 794 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 795 tlv_len); 796 drv->fw.type = IWL_FW_MVM; 797 break; 798 case IWL_UCODE_TLV_DEF_CALIB: 799 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 800 goto invalid_tlv_len; 801 if (iwl_set_default_calib(drv, tlv_data)) 802 goto tlv_error; 803 break; 804 case IWL_UCODE_TLV_PHY_SKU: 805 if (tlv_len != sizeof(u32)) 806 goto invalid_tlv_len; 807 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); 808 drv->fw.valid_tx_ant = (drv->fw.phy_config & 809 FW_PHY_CFG_TX_CHAIN) >> 810 FW_PHY_CFG_TX_CHAIN_POS; 811 drv->fw.valid_rx_ant = (drv->fw.phy_config & 812 FW_PHY_CFG_RX_CHAIN) >> 813 FW_PHY_CFG_RX_CHAIN_POS; 814 break; 815 case IWL_UCODE_TLV_SECURE_SEC_RT: 816 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 817 tlv_len); 818 drv->fw.type = IWL_FW_MVM; 819 break; 820 case IWL_UCODE_TLV_SECURE_SEC_INIT: 821 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 822 tlv_len); 823 drv->fw.type = IWL_FW_MVM; 824 break; 825 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 826 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 827 tlv_len); 828 drv->fw.type = IWL_FW_MVM; 829 break; 830 case IWL_UCODE_TLV_NUM_OF_CPU: 831 if (tlv_len != sizeof(u32)) 832 goto invalid_tlv_len; 833 num_of_cpus = 834 le32_to_cpup((__le32 *)tlv_data); 835 836 if (num_of_cpus == 2) { 837 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 838 true; 839 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 840 true; 841 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 842 true; 843 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 844 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 845 return -EINVAL; 846 } 847 break; 848 case IWL_UCODE_TLV_CSCHEME: 849 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) 850 goto invalid_tlv_len; 851 break; 852 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 853 if (tlv_len != sizeof(u32)) 854 goto invalid_tlv_len; 855 capa->n_scan_channels = 856 le32_to_cpup((__le32 *)tlv_data); 857 break; 858 case IWL_UCODE_TLV_FW_VERSION: { 859 __le32 *ptr = (void *)tlv_data; 860 u32 major, minor; 861 u8 local_comp; 862 863 if (tlv_len != sizeof(u32) * 3) 864 goto invalid_tlv_len; 865 866 major = le32_to_cpup(ptr++); 867 minor = le32_to_cpup(ptr++); 868 local_comp = le32_to_cpup(ptr); 869 870 snprintf(drv->fw.fw_version, 871 sizeof(drv->fw.fw_version), "%u.%u.%u", 872 major, minor, local_comp); 873 break; 874 } 875 case IWL_UCODE_TLV_FW_DBG_DEST: { 876 struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data; 877 878 if (pieces->dbg_dest_tlv) { 879 IWL_ERR(drv, 880 "dbg destination ignored, already exists\n"); 881 break; 882 } 883 884 pieces->dbg_dest_tlv = dest; 885 IWL_INFO(drv, "Found debug destination: %s\n", 886 get_fw_dbg_mode_string(dest->monitor_mode)); 887 888 drv->fw.dbg_dest_reg_num = 889 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv, 890 reg_ops); 891 drv->fw.dbg_dest_reg_num /= 892 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]); 893 894 break; 895 } 896 case IWL_UCODE_TLV_FW_DBG_CONF: { 897 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; 898 899 if (!pieces->dbg_dest_tlv) { 900 IWL_ERR(drv, 901 "Ignore dbg config %d - no destination configured\n", 902 conf->id); 903 break; 904 } 905 906 if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) { 907 IWL_ERR(drv, 908 "Skip unknown configuration: %d\n", 909 conf->id); 910 break; 911 } 912 913 if (pieces->dbg_conf_tlv[conf->id]) { 914 IWL_ERR(drv, 915 "Ignore duplicate dbg config %d\n", 916 conf->id); 917 break; 918 } 919 920 if (conf->usniffer) 921 usniffer_req = true; 922 923 IWL_INFO(drv, "Found debug configuration: %d\n", 924 conf->id); 925 926 pieces->dbg_conf_tlv[conf->id] = conf; 927 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 928 break; 929 } 930 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 931 struct iwl_fw_dbg_trigger_tlv *trigger = 932 (void *)tlv_data; 933 u32 trigger_id = le32_to_cpu(trigger->id); 934 935 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) { 936 IWL_ERR(drv, 937 "Skip unknown trigger: %u\n", 938 trigger->id); 939 break; 940 } 941 942 if (pieces->dbg_trigger_tlv[trigger_id]) { 943 IWL_ERR(drv, 944 "Ignore duplicate dbg trigger %u\n", 945 trigger->id); 946 break; 947 } 948 949 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 950 951 pieces->dbg_trigger_tlv[trigger_id] = trigger; 952 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 953 break; 954 } 955 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 956 *usniffer_images = true; 957 iwl_store_ucode_sec(pieces, tlv_data, 958 IWL_UCODE_REGULAR_USNIFFER, 959 tlv_len); 960 break; 961 case IWL_UCODE_TLV_PAGING: 962 if (tlv_len != sizeof(u32)) 963 goto invalid_tlv_len; 964 paging_mem_size = le32_to_cpup((__le32 *)tlv_data); 965 966 IWL_DEBUG_FW(drv, 967 "Paging: paging enabled (size = %u bytes)\n", 968 paging_mem_size); 969 970 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 971 IWL_ERR(drv, 972 "Paging: driver supports up to %lu bytes for paging image\n", 973 MAX_PAGING_IMAGE_SIZE); 974 return -EINVAL; 975 } 976 977 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 978 IWL_ERR(drv, 979 "Paging: image isn't multiple %lu\n", 980 FW_PAGING_SIZE); 981 return -EINVAL; 982 } 983 984 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 985 paging_mem_size; 986 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 987 drv->fw.img[usniffer_img].paging_mem_size = 988 paging_mem_size; 989 break; 990 case IWL_UCODE_TLV_SDIO_ADMA_ADDR: 991 if (tlv_len != sizeof(u32)) 992 goto invalid_tlv_len; 993 drv->fw.sdio_adma_addr = 994 le32_to_cpup((__le32 *)tlv_data); 995 break; 996 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 997 /* 998 * Don't return an error in case of a shorter tlv_len 999 * to enable loading of FW that has an old format 1000 * of GSCAN capabilities TLV. 1001 */ 1002 if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities)) 1003 break; 1004 1005 iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len); 1006 gscan_capa = true; 1007 break; 1008 case IWL_UCODE_TLV_FW_MEM_SEG: { 1009 struct iwl_fw_dbg_mem_seg_tlv *dbg_mem = 1010 (void *)tlv_data; 1011 u32 type; 1012 1013 if (tlv_len != (sizeof(*dbg_mem))) 1014 goto invalid_tlv_len; 1015 1016 type = le32_to_cpu(dbg_mem->data_type); 1017 drv->fw.dbg_dynamic_mem = true; 1018 1019 if (type >= ARRAY_SIZE(drv->fw.dbg_mem_tlv)) { 1020 IWL_ERR(drv, 1021 "Skip unknown dbg mem segment: %u\n", 1022 dbg_mem->data_type); 1023 break; 1024 } 1025 1026 if (pieces->dbg_mem_tlv[type]) { 1027 IWL_ERR(drv, 1028 "Ignore duplicate mem segment: %u\n", 1029 dbg_mem->data_type); 1030 break; 1031 } 1032 1033 IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n", 1034 dbg_mem->data_type); 1035 1036 pieces->dbg_mem_tlv[type] = dbg_mem; 1037 break; 1038 } 1039 default: 1040 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1041 break; 1042 } 1043 } 1044 1045 if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) && 1046 usniffer_req && !*usniffer_images) { 1047 IWL_ERR(drv, 1048 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1049 return -EINVAL; 1050 } 1051 1052 if (len) { 1053 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1054 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); 1055 return -EINVAL; 1056 } 1057 1058 /* 1059 * If ucode advertises that it supports GSCAN but GSCAN 1060 * capabilities TLV is not present, or if it has an old format, 1061 * warn and continue without GSCAN. 1062 */ 1063 if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) && 1064 !gscan_capa) { 1065 IWL_DEBUG_INFO(drv, 1066 "GSCAN is supported but capabilities TLV is unavailable\n"); 1067 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT, 1068 capa->_capa); 1069 } 1070 1071 return 0; 1072 1073 invalid_tlv_len: 1074 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1075 tlv_error: 1076 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1077 1078 return -EINVAL; 1079 } 1080 1081 static int iwl_alloc_ucode(struct iwl_drv *drv, 1082 struct iwl_firmware_pieces *pieces, 1083 enum iwl_ucode_type type) 1084 { 1085 int i; 1086 for (i = 0; 1087 i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i); 1088 i++) 1089 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]), 1090 get_sec(pieces, type, i))) 1091 return -ENOMEM; 1092 return 0; 1093 } 1094 1095 static int validate_sec_sizes(struct iwl_drv *drv, 1096 struct iwl_firmware_pieces *pieces, 1097 const struct iwl_cfg *cfg) 1098 { 1099 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n", 1100 get_sec_size(pieces, IWL_UCODE_REGULAR, 1101 IWL_UCODE_SECTION_INST)); 1102 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n", 1103 get_sec_size(pieces, IWL_UCODE_REGULAR, 1104 IWL_UCODE_SECTION_DATA)); 1105 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n", 1106 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1107 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n", 1108 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1109 1110 /* Verify that uCode images will fit in card's SRAM. */ 1111 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1112 cfg->max_inst_size) { 1113 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n", 1114 get_sec_size(pieces, IWL_UCODE_REGULAR, 1115 IWL_UCODE_SECTION_INST)); 1116 return -1; 1117 } 1118 1119 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1120 cfg->max_data_size) { 1121 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n", 1122 get_sec_size(pieces, IWL_UCODE_REGULAR, 1123 IWL_UCODE_SECTION_DATA)); 1124 return -1; 1125 } 1126 1127 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1128 cfg->max_inst_size) { 1129 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n", 1130 get_sec_size(pieces, IWL_UCODE_INIT, 1131 IWL_UCODE_SECTION_INST)); 1132 return -1; 1133 } 1134 1135 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1136 cfg->max_data_size) { 1137 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n", 1138 get_sec_size(pieces, IWL_UCODE_REGULAR, 1139 IWL_UCODE_SECTION_DATA)); 1140 return -1; 1141 } 1142 return 0; 1143 } 1144 1145 static struct iwl_op_mode * 1146 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1147 { 1148 const struct iwl_op_mode_ops *ops = op->ops; 1149 struct dentry *dbgfs_dir = NULL; 1150 struct iwl_op_mode *op_mode = NULL; 1151 1152 #ifdef CONFIG_IWLWIFI_DEBUGFS 1153 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1154 drv->dbgfs_drv); 1155 if (!drv->dbgfs_op_mode) { 1156 IWL_ERR(drv, 1157 "failed to create opmode debugfs directory\n"); 1158 return op_mode; 1159 } 1160 dbgfs_dir = drv->dbgfs_op_mode; 1161 #endif 1162 1163 op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir); 1164 1165 #ifdef CONFIG_IWLWIFI_DEBUGFS 1166 if (!op_mode) { 1167 debugfs_remove_recursive(drv->dbgfs_op_mode); 1168 drv->dbgfs_op_mode = NULL; 1169 } 1170 #endif 1171 1172 return op_mode; 1173 } 1174 1175 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1176 { 1177 /* op_mode can be NULL if its start failed */ 1178 if (drv->op_mode) { 1179 iwl_op_mode_stop(drv->op_mode); 1180 drv->op_mode = NULL; 1181 1182 #ifdef CONFIG_IWLWIFI_DEBUGFS 1183 debugfs_remove_recursive(drv->dbgfs_op_mode); 1184 drv->dbgfs_op_mode = NULL; 1185 #endif 1186 } 1187 } 1188 1189 /** 1190 * iwl_req_fw_callback - callback when firmware was loaded 1191 * 1192 * If loaded successfully, copies the firmware into buffers 1193 * for the card to fetch (via DMA). 1194 */ 1195 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1196 { 1197 struct iwl_drv *drv = context; 1198 struct iwl_fw *fw = &drv->fw; 1199 struct iwl_ucode_header *ucode; 1200 struct iwlwifi_opmode_table *op; 1201 int err; 1202 struct iwl_firmware_pieces *pieces; 1203 const unsigned int api_max = drv->cfg->ucode_api_max; 1204 const unsigned int api_min = drv->cfg->ucode_api_min; 1205 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1206 u32 api_ver; 1207 int i; 1208 bool load_module = false; 1209 bool usniffer_images = false; 1210 1211 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1212 fw->ucode_capa.standard_phy_calibration_size = 1213 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1214 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1215 1216 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1217 if (!pieces) 1218 return; 1219 1220 if (!ucode_raw) 1221 goto try_again; 1222 1223 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1224 drv->firmware_name, ucode_raw->size); 1225 1226 /* Make sure that we got at least the API version number */ 1227 if (ucode_raw->size < 4) { 1228 IWL_ERR(drv, "File size way too small!\n"); 1229 goto try_again; 1230 } 1231 1232 /* Data from ucode file: header followed by uCode images */ 1233 ucode = (struct iwl_ucode_header *)ucode_raw->data; 1234 1235 if (ucode->ver) 1236 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1237 else 1238 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1239 &fw->ucode_capa, &usniffer_images); 1240 1241 if (err) 1242 goto try_again; 1243 1244 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1245 api_ver = drv->fw.ucode_ver; 1246 else 1247 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1248 1249 /* 1250 * api_ver should match the api version forming part of the 1251 * firmware filename ... but we don't check for that and only rely 1252 * on the API version read from firmware header from here on forward 1253 */ 1254 if (api_ver < api_min || api_ver > api_max) { 1255 IWL_ERR(drv, 1256 "Driver unable to support your firmware API. " 1257 "Driver supports v%u, firmware is v%u.\n", 1258 api_max, api_ver); 1259 goto try_again; 1260 } 1261 1262 /* 1263 * In mvm uCode there is no difference between data and instructions 1264 * sections. 1265 */ 1266 if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces, drv->cfg)) 1267 goto try_again; 1268 1269 /* Allocate ucode buffers for card's bus-master loading ... */ 1270 1271 /* Runtime instructions and 2 copies of data: 1272 * 1) unmodified from disk 1273 * 2) backup cache for save/restore during power-downs */ 1274 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1275 if (iwl_alloc_ucode(drv, pieces, i)) 1276 goto out_free_fw; 1277 1278 if (pieces->dbg_dest_tlv) { 1279 drv->fw.dbg_dest_tlv = 1280 kmemdup(pieces->dbg_dest_tlv, 1281 sizeof(*pieces->dbg_dest_tlv) + 1282 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) * 1283 drv->fw.dbg_dest_reg_num, GFP_KERNEL); 1284 1285 if (!drv->fw.dbg_dest_tlv) 1286 goto out_free_fw; 1287 } 1288 1289 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) { 1290 if (pieces->dbg_conf_tlv[i]) { 1291 drv->fw.dbg_conf_tlv_len[i] = 1292 pieces->dbg_conf_tlv_len[i]; 1293 drv->fw.dbg_conf_tlv[i] = 1294 kmemdup(pieces->dbg_conf_tlv[i], 1295 drv->fw.dbg_conf_tlv_len[i], 1296 GFP_KERNEL); 1297 if (!drv->fw.dbg_conf_tlv[i]) 1298 goto out_free_fw; 1299 } 1300 } 1301 1302 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1303 1304 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1305 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1306 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1307 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1308 sizeof(struct iwl_fw_dbg_trigger_cmd); 1309 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1310 sizeof(struct iwl_fw_dbg_trigger_mlme); 1311 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1312 sizeof(struct iwl_fw_dbg_trigger_stats); 1313 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1314 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1315 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1316 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1317 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1318 sizeof(struct iwl_fw_dbg_trigger_time_event); 1319 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1320 sizeof(struct iwl_fw_dbg_trigger_ba); 1321 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1322 sizeof(struct iwl_fw_dbg_trigger_tdls); 1323 1324 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) { 1325 if (pieces->dbg_trigger_tlv[i]) { 1326 /* 1327 * If the trigger isn't long enough, WARN and exit. 1328 * Someone is trying to debug something and he won't 1329 * be able to catch the bug he is trying to chase. 1330 * We'd better be noisy to be sure he knows what's 1331 * going on. 1332 */ 1333 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1334 (trigger_tlv_sz[i] + 1335 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1336 goto out_free_fw; 1337 drv->fw.dbg_trigger_tlv_len[i] = 1338 pieces->dbg_trigger_tlv_len[i]; 1339 drv->fw.dbg_trigger_tlv[i] = 1340 kmemdup(pieces->dbg_trigger_tlv[i], 1341 drv->fw.dbg_trigger_tlv_len[i], 1342 GFP_KERNEL); 1343 if (!drv->fw.dbg_trigger_tlv[i]) 1344 goto out_free_fw; 1345 } 1346 } 1347 1348 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_mem_tlv); i++) { 1349 if (pieces->dbg_mem_tlv[i]) { 1350 drv->fw.dbg_mem_tlv[i] = 1351 kmemdup(pieces->dbg_mem_tlv[i], 1352 sizeof(*drv->fw.dbg_mem_tlv[i]), 1353 GFP_KERNEL); 1354 if (!drv->fw.dbg_mem_tlv[i]) 1355 goto out_free_fw; 1356 } 1357 } 1358 1359 /* Now that we can no longer fail, copy information */ 1360 1361 /* 1362 * The (size - 16) / 12 formula is based on the information recorded 1363 * for each event, which is of mode 1 (including timestamp) for all 1364 * new microcodes that include this information. 1365 */ 1366 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1367 if (pieces->init_evtlog_size) 1368 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1369 else 1370 fw->init_evtlog_size = 1371 drv->cfg->base_params->max_event_log_size; 1372 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1373 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1374 if (pieces->inst_evtlog_size) 1375 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1376 else 1377 fw->inst_evtlog_size = 1378 drv->cfg->base_params->max_event_log_size; 1379 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1380 1381 /* 1382 * figure out the offset of chain noise reset and gain commands 1383 * base on the size of standard phy calibration commands table size 1384 */ 1385 if (fw->ucode_capa.standard_phy_calibration_size > 1386 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1387 fw->ucode_capa.standard_phy_calibration_size = 1388 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1389 1390 /* We have our copies now, allow OS release its copies */ 1391 release_firmware(ucode_raw); 1392 1393 mutex_lock(&iwlwifi_opmode_table_mtx); 1394 switch (fw->type) { 1395 case IWL_FW_DVM: 1396 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1397 break; 1398 default: 1399 WARN(1, "Invalid fw type %d\n", fw->type); 1400 case IWL_FW_MVM: 1401 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1402 break; 1403 } 1404 1405 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1406 drv->fw.fw_version, op->name); 1407 1408 /* add this device to the list of devices using this op_mode */ 1409 list_add_tail(&drv->list, &op->drv); 1410 1411 if (op->ops) { 1412 drv->op_mode = _iwl_op_mode_start(drv, op); 1413 1414 if (!drv->op_mode) { 1415 mutex_unlock(&iwlwifi_opmode_table_mtx); 1416 goto out_unbind; 1417 } 1418 } else { 1419 load_module = true; 1420 } 1421 mutex_unlock(&iwlwifi_opmode_table_mtx); 1422 1423 /* 1424 * Complete the firmware request last so that 1425 * a driver unbind (stop) doesn't run while we 1426 * are doing the start() above. 1427 */ 1428 complete(&drv->request_firmware_complete); 1429 1430 /* 1431 * Load the module last so we don't block anything 1432 * else from proceeding if the module fails to load 1433 * or hangs loading. 1434 */ 1435 if (load_module) { 1436 err = request_module("%s", op->name); 1437 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR 1438 if (err) 1439 IWL_ERR(drv, 1440 "failed to load module %s (error %d), is dynamic loading enabled?\n", 1441 op->name, err); 1442 #endif 1443 } 1444 kfree(pieces); 1445 return; 1446 1447 try_again: 1448 /* try next, if any */ 1449 release_firmware(ucode_raw); 1450 if (iwl_request_firmware(drv, false)) 1451 goto out_unbind; 1452 kfree(pieces); 1453 return; 1454 1455 out_free_fw: 1456 IWL_ERR(drv, "failed to allocate pci memory\n"); 1457 iwl_dealloc_ucode(drv); 1458 release_firmware(ucode_raw); 1459 out_unbind: 1460 kfree(pieces); 1461 complete(&drv->request_firmware_complete); 1462 device_release_driver(drv->trans->dev); 1463 } 1464 1465 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans, 1466 const struct iwl_cfg *cfg) 1467 { 1468 struct iwl_drv *drv; 1469 int ret; 1470 1471 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1472 if (!drv) { 1473 ret = -ENOMEM; 1474 goto err; 1475 } 1476 1477 drv->trans = trans; 1478 drv->dev = trans->dev; 1479 drv->cfg = cfg; 1480 1481 init_completion(&drv->request_firmware_complete); 1482 INIT_LIST_HEAD(&drv->list); 1483 1484 #ifdef CONFIG_IWLWIFI_DEBUGFS 1485 /* Create the device debugfs entries. */ 1486 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1487 iwl_dbgfs_root); 1488 1489 if (!drv->dbgfs_drv) { 1490 IWL_ERR(drv, "failed to create debugfs directory\n"); 1491 ret = -ENOMEM; 1492 goto err_free_drv; 1493 } 1494 1495 /* Create transport layer debugfs dir */ 1496 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1497 1498 if (!drv->trans->dbgfs_dir) { 1499 IWL_ERR(drv, "failed to create transport debugfs directory\n"); 1500 ret = -ENOMEM; 1501 goto err_free_dbgfs; 1502 } 1503 #endif 1504 1505 ret = iwl_request_firmware(drv, true); 1506 if (ret) { 1507 IWL_ERR(trans, "Couldn't request the fw\n"); 1508 goto err_fw; 1509 } 1510 1511 return drv; 1512 1513 err_fw: 1514 #ifdef CONFIG_IWLWIFI_DEBUGFS 1515 err_free_dbgfs: 1516 debugfs_remove_recursive(drv->dbgfs_drv); 1517 err_free_drv: 1518 #endif 1519 kfree(drv); 1520 err: 1521 return ERR_PTR(ret); 1522 } 1523 1524 void iwl_drv_stop(struct iwl_drv *drv) 1525 { 1526 wait_for_completion(&drv->request_firmware_complete); 1527 1528 _iwl_op_mode_stop(drv); 1529 1530 iwl_dealloc_ucode(drv); 1531 1532 mutex_lock(&iwlwifi_opmode_table_mtx); 1533 /* 1534 * List is empty (this item wasn't added) 1535 * when firmware loading failed -- in that 1536 * case we can't remove it from any list. 1537 */ 1538 if (!list_empty(&drv->list)) 1539 list_del(&drv->list); 1540 mutex_unlock(&iwlwifi_opmode_table_mtx); 1541 1542 #ifdef CONFIG_IWLWIFI_DEBUGFS 1543 debugfs_remove_recursive(drv->dbgfs_drv); 1544 #endif 1545 1546 kfree(drv); 1547 } 1548 1549 1550 /* shared module parameters */ 1551 struct iwl_mod_params iwlwifi_mod_params = { 1552 .restart_fw = true, 1553 .bt_coex_active = true, 1554 .power_level = IWL_POWER_INDEX_1, 1555 .d0i3_disable = true, 1556 .d0i3_entry_delay = 1000, 1557 .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT, 1558 /* the rest are 0 by default */ 1559 }; 1560 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1561 1562 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1563 { 1564 int i; 1565 struct iwl_drv *drv; 1566 struct iwlwifi_opmode_table *op; 1567 1568 mutex_lock(&iwlwifi_opmode_table_mtx); 1569 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1570 op = &iwlwifi_opmode_table[i]; 1571 if (strcmp(op->name, name)) 1572 continue; 1573 op->ops = ops; 1574 /* TODO: need to handle exceptional case */ 1575 list_for_each_entry(drv, &op->drv, list) 1576 drv->op_mode = _iwl_op_mode_start(drv, op); 1577 1578 mutex_unlock(&iwlwifi_opmode_table_mtx); 1579 return 0; 1580 } 1581 mutex_unlock(&iwlwifi_opmode_table_mtx); 1582 return -EIO; 1583 } 1584 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1585 1586 void iwl_opmode_deregister(const char *name) 1587 { 1588 int i; 1589 struct iwl_drv *drv; 1590 1591 mutex_lock(&iwlwifi_opmode_table_mtx); 1592 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1593 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1594 continue; 1595 iwlwifi_opmode_table[i].ops = NULL; 1596 1597 /* call the stop routine for all devices */ 1598 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1599 _iwl_op_mode_stop(drv); 1600 1601 mutex_unlock(&iwlwifi_opmode_table_mtx); 1602 return; 1603 } 1604 mutex_unlock(&iwlwifi_opmode_table_mtx); 1605 } 1606 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1607 1608 static int __init iwl_drv_init(void) 1609 { 1610 int i; 1611 1612 mutex_init(&iwlwifi_opmode_table_mtx); 1613 1614 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1615 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1616 1617 pr_info(DRV_DESCRIPTION "\n"); 1618 pr_info(DRV_COPYRIGHT "\n"); 1619 1620 #ifdef CONFIG_IWLWIFI_DEBUGFS 1621 /* Create the root of iwlwifi debugfs subsystem. */ 1622 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1623 1624 if (!iwl_dbgfs_root) 1625 return -EFAULT; 1626 #endif 1627 1628 return iwl_pci_register_driver(); 1629 } 1630 module_init(iwl_drv_init); 1631 1632 static void __exit iwl_drv_exit(void) 1633 { 1634 iwl_pci_unregister_driver(); 1635 1636 #ifdef CONFIG_IWLWIFI_DEBUGFS 1637 debugfs_remove_recursive(iwl_dbgfs_root); 1638 #endif 1639 } 1640 module_exit(iwl_drv_exit); 1641 1642 #ifdef CONFIG_IWLWIFI_DEBUG 1643 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 1644 S_IRUGO | S_IWUSR); 1645 MODULE_PARM_DESC(debug, "debug output mask"); 1646 #endif 1647 1648 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO); 1649 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1650 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO); 1651 MODULE_PARM_DESC(11n_disable, 1652 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1653 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, 1654 int, S_IRUGO); 1655 MODULE_PARM_DESC(amsdu_size, 1656 "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)"); 1657 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO); 1658 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1659 1660 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling, 1661 int, S_IRUGO); 1662 MODULE_PARM_DESC(antenna_coupling, 1663 "specify antenna coupling in dB (default: 0 dB)"); 1664 1665 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO); 1666 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1667 1668 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, 1669 bool, S_IRUGO); 1670 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)"); 1671 1672 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, 1673 bool, S_IRUGO); 1674 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)"); 1675 1676 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, 1677 uint, S_IRUGO | S_IWUSR); 1678 MODULE_PARM_DESC(uapsd_disable, 1679 "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)"); 1680 1681 /* 1682 * set bt_coex_active to true, uCode will do kill/defer 1683 * every time the priority line is asserted (BT is sending signals on the 1684 * priority line in the PCIx). 1685 * set bt_coex_active to false, uCode will ignore the BT activity and 1686 * perform the normal operation 1687 * 1688 * User might experience transmit issue on some platform due to WiFi/BT 1689 * co-exist problem. The possible behaviors are: 1690 * Able to scan and finding all the available AP 1691 * Not able to associate with any AP 1692 * On those platforms, WiFi communication can be restored by set 1693 * "bt_coex_active" module parameter to "false" 1694 * 1695 * default: bt_coex_active = true (BT_COEX_ENABLE) 1696 */ 1697 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1698 bool, S_IRUGO); 1699 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1700 1701 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO); 1702 MODULE_PARM_DESC(led_mode, "0=system default, " 1703 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1704 1705 module_param_named(power_save, iwlwifi_mod_params.power_save, 1706 bool, S_IRUGO); 1707 MODULE_PARM_DESC(power_save, 1708 "enable WiFi power management (default: disable)"); 1709 1710 module_param_named(power_level, iwlwifi_mod_params.power_level, 1711 int, S_IRUGO); 1712 MODULE_PARM_DESC(power_level, 1713 "default power save level (range from 1 - 5, default: 1)"); 1714 1715 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO); 1716 MODULE_PARM_DESC(fw_monitor, 1717 "firmware monitor - to debug FW (default: false - needs lots of memory)"); 1718 1719 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay, 1720 uint, S_IRUGO); 1721 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)"); 1722 1723 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 1724 S_IRUGO); 1725 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)"); 1726