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 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23 * USA 24 * 25 * The full GNU General Public License is included in this distribution 26 * in the file called COPYING. 27 * 28 * Contact Information: 29 * Intel Linux Wireless <linuxwifi@intel.com> 30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31 * 32 * BSD LICENSE 33 * 34 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. 35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 42 * * Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * * Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * * Neither the name Intel Corporation nor the names of its 49 * contributors may be used to endorse or promote products derived 50 * from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 * 64 *****************************************************************************/ 65 #include <linux/completion.h> 66 #include <linux/dma-mapping.h> 67 #include <linux/firmware.h> 68 #include <linux/module.h> 69 #include <linux/vmalloc.h> 70 71 #include "iwl-drv.h" 72 #include "iwl-csr.h" 73 #include "iwl-debug.h" 74 #include "iwl-trans.h" 75 #include "iwl-op-mode.h" 76 #include "iwl-agn-hw.h" 77 #include "iwl-fw.h" 78 #include "iwl-config.h" 79 #include "iwl-modparams.h" 80 81 /****************************************************************************** 82 * 83 * module boiler plate 84 * 85 ******************************************************************************/ 86 87 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux" 88 MODULE_DESCRIPTION(DRV_DESCRIPTION); 89 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); 90 MODULE_LICENSE("GPL"); 91 92 #ifdef CONFIG_IWLWIFI_DEBUGFS 93 static struct dentry *iwl_dbgfs_root; 94 #endif 95 96 /** 97 * struct iwl_drv - drv common data 98 * @list: list of drv structures using this opmode 99 * @fw: the iwl_fw structure 100 * @op_mode: the running op_mode 101 * @trans: transport layer 102 * @dev: for debug prints only 103 * @cfg: configuration struct 104 * @fw_index: firmware revision to try loading 105 * @firmware_name: composite filename of ucode file to load 106 * @request_firmware_complete: the firmware has been obtained from user space 107 */ 108 struct iwl_drv { 109 struct list_head list; 110 struct iwl_fw fw; 111 112 struct iwl_op_mode *op_mode; 113 struct iwl_trans *trans; 114 struct device *dev; 115 const struct iwl_cfg *cfg; 116 117 int fw_index; /* firmware we're trying to load */ 118 char firmware_name[32]; /* 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 = 0, 131 MVM_OP_MODE = 1, 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 < IWL_UCODE_SECTION_MAX; i++) 168 iwl_free_fw_desc(drv, &img->sec[i]); 169 } 170 171 static void iwl_dealloc_ucode(struct iwl_drv *drv) 172 { 173 int i; 174 175 kfree(drv->fw.dbg_dest_tlv); 176 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) 177 kfree(drv->fw.dbg_conf_tlv[i]); 178 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) 179 kfree(drv->fw.dbg_trigger_tlv[i]); 180 181 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 182 iwl_free_fw_img(drv, drv->fw.img + i); 183 } 184 185 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc, 186 struct fw_sec *sec) 187 { 188 void *data; 189 190 desc->data = NULL; 191 192 if (!sec || !sec->size) 193 return -EINVAL; 194 195 data = vmalloc(sec->size); 196 if (!data) 197 return -ENOMEM; 198 199 desc->len = sec->size; 200 desc->offset = sec->offset; 201 memcpy(data, sec->data, desc->len); 202 desc->data = data; 203 204 return 0; 205 } 206 207 static void iwl_req_fw_callback(const struct firmware *ucode_raw, 208 void *context); 209 210 #define UCODE_EXPERIMENTAL_INDEX 100 211 #define UCODE_EXPERIMENTAL_TAG "exp" 212 213 static int iwl_request_firmware(struct iwl_drv *drv, bool first) 214 { 215 const char *name_pre = drv->cfg->fw_name_pre; 216 char tag[8]; 217 218 if (first) { 219 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE 220 drv->fw_index = UCODE_EXPERIMENTAL_INDEX; 221 strcpy(tag, UCODE_EXPERIMENTAL_TAG); 222 } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) { 223 #endif 224 drv->fw_index = drv->cfg->ucode_api_max; 225 sprintf(tag, "%d", drv->fw_index); 226 } else { 227 drv->fw_index--; 228 sprintf(tag, "%d", drv->fw_index); 229 } 230 231 if (drv->fw_index < drv->cfg->ucode_api_min) { 232 IWL_ERR(drv, "no suitable firmware found!\n"); 233 return -ENOENT; 234 } 235 236 snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", 237 name_pre, tag); 238 239 /* 240 * Starting 8000B - FW name format has changed. This overwrites the 241 * previous name and uses the new format. 242 */ 243 if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) { 244 char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev); 245 246 if (rev_step != 'A') 247 snprintf(drv->firmware_name, 248 sizeof(drv->firmware_name), "%s%c-%s.ucode", 249 name_pre, rev_step, tag); 250 } 251 252 IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n", 253 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) 254 ? "EXPERIMENTAL " : "", 255 drv->firmware_name); 256 257 return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name, 258 drv->trans->dev, 259 GFP_KERNEL, drv, iwl_req_fw_callback); 260 } 261 262 struct fw_img_parsing { 263 struct fw_sec sec[IWL_UCODE_SECTION_MAX]; 264 int sec_counter; 265 }; 266 267 /* 268 * struct fw_sec_parsing: to extract fw section and it's offset from tlv 269 */ 270 struct fw_sec_parsing { 271 __le32 offset; 272 const u8 data[]; 273 } __packed; 274 275 /** 276 * struct iwl_tlv_calib_data - parse the default calib data from TLV 277 * 278 * @ucode_type: the uCode to which the following default calib relates. 279 * @calib: default calibrations. 280 */ 281 struct iwl_tlv_calib_data { 282 __le32 ucode_type; 283 struct iwl_tlv_calib_ctrl calib; 284 } __packed; 285 286 struct iwl_firmware_pieces { 287 struct fw_img_parsing img[IWL_UCODE_TYPE_MAX]; 288 289 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; 290 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; 291 292 /* FW debug data parsed for driver usage */ 293 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv; 294 struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX]; 295 size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX]; 296 struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX]; 297 size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX]; 298 }; 299 300 /* 301 * These functions are just to extract uCode section data from the pieces 302 * structure. 303 */ 304 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces, 305 enum iwl_ucode_type type, 306 int sec) 307 { 308 return &pieces->img[type].sec[sec]; 309 } 310 311 static void set_sec_data(struct iwl_firmware_pieces *pieces, 312 enum iwl_ucode_type type, 313 int sec, 314 const void *data) 315 { 316 pieces->img[type].sec[sec].data = data; 317 } 318 319 static void set_sec_size(struct iwl_firmware_pieces *pieces, 320 enum iwl_ucode_type type, 321 int sec, 322 size_t size) 323 { 324 pieces->img[type].sec[sec].size = size; 325 } 326 327 static size_t get_sec_size(struct iwl_firmware_pieces *pieces, 328 enum iwl_ucode_type type, 329 int sec) 330 { 331 return pieces->img[type].sec[sec].size; 332 } 333 334 static void set_sec_offset(struct iwl_firmware_pieces *pieces, 335 enum iwl_ucode_type type, 336 int sec, 337 u32 offset) 338 { 339 pieces->img[type].sec[sec].offset = offset; 340 } 341 342 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) 343 { 344 int i, j; 345 struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; 346 struct iwl_fw_cipher_scheme *fwcs; 347 struct ieee80211_cipher_scheme *cs; 348 u32 cipher; 349 350 if (len < sizeof(*l) || 351 len < sizeof(l->size) + l->size * sizeof(l->cs[0])) 352 return -EINVAL; 353 354 for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { 355 fwcs = &l->cs[j]; 356 cipher = le32_to_cpu(fwcs->cipher); 357 358 /* we skip schemes with zero cipher suite selector */ 359 if (!cipher) 360 continue; 361 362 cs = &fw->cs[j++]; 363 cs->cipher = cipher; 364 cs->iftype = BIT(NL80211_IFTYPE_STATION); 365 cs->hdr_len = fwcs->hdr_len; 366 cs->pn_len = fwcs->pn_len; 367 cs->pn_off = fwcs->pn_off; 368 cs->key_idx_off = fwcs->key_idx_off; 369 cs->key_idx_mask = fwcs->key_idx_mask; 370 cs->key_idx_shift = fwcs->key_idx_shift; 371 cs->mic_len = fwcs->mic_len; 372 } 373 374 return 0; 375 } 376 377 static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data, 378 const u32 len) 379 { 380 struct iwl_fw_gscan_capabilities *fw_capa = (void *)data; 381 struct iwl_gscan_capabilities *capa = &fw->gscan_capa; 382 383 if (len < sizeof(*fw_capa)) 384 return -EINVAL; 385 386 capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size); 387 capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets); 388 capa->max_ap_cache_per_scan = 389 le32_to_cpu(fw_capa->max_ap_cache_per_scan); 390 capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size); 391 capa->max_scan_reporting_threshold = 392 le32_to_cpu(fw_capa->max_scan_reporting_threshold); 393 capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps); 394 capa->max_significant_change_aps = 395 le32_to_cpu(fw_capa->max_significant_change_aps); 396 capa->max_bssid_history_entries = 397 le32_to_cpu(fw_capa->max_bssid_history_entries); 398 return 0; 399 } 400 401 /* 402 * Gets uCode section from tlv. 403 */ 404 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces, 405 const void *data, enum iwl_ucode_type type, 406 int size) 407 { 408 struct fw_img_parsing *img; 409 struct fw_sec *sec; 410 struct fw_sec_parsing *sec_parse; 411 412 if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX)) 413 return -1; 414 415 sec_parse = (struct fw_sec_parsing *)data; 416 417 img = &pieces->img[type]; 418 sec = &img->sec[img->sec_counter]; 419 420 sec->offset = le32_to_cpu(sec_parse->offset); 421 sec->data = sec_parse->data; 422 sec->size = size - sizeof(sec_parse->offset); 423 424 ++img->sec_counter; 425 426 return 0; 427 } 428 429 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) 430 { 431 struct iwl_tlv_calib_data *def_calib = 432 (struct iwl_tlv_calib_data *)data; 433 u32 ucode_type = le32_to_cpu(def_calib->ucode_type); 434 if (ucode_type >= IWL_UCODE_TYPE_MAX) { 435 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n", 436 ucode_type); 437 return -EINVAL; 438 } 439 drv->fw.default_calib[ucode_type].flow_trigger = 440 def_calib->calib.flow_trigger; 441 drv->fw.default_calib[ucode_type].event_trigger = 442 def_calib->calib.event_trigger; 443 444 return 0; 445 } 446 447 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, 448 struct iwl_ucode_capabilities *capa) 449 { 450 const struct iwl_ucode_api *ucode_api = (void *)data; 451 u32 api_index = le32_to_cpu(ucode_api->api_index); 452 u32 api_flags = le32_to_cpu(ucode_api->api_flags); 453 int i; 454 455 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) { 456 IWL_ERR(drv, 457 "api flags index %d larger than supported by driver\n", 458 api_index); 459 /* don't return an error so we can load FW that has more bits */ 460 return 0; 461 } 462 463 for (i = 0; i < 32; i++) { 464 if (api_flags & BIT(i)) 465 __set_bit(i + 32 * api_index, capa->_api); 466 } 467 468 return 0; 469 } 470 471 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, 472 struct iwl_ucode_capabilities *capa) 473 { 474 const struct iwl_ucode_capa *ucode_capa = (void *)data; 475 u32 api_index = le32_to_cpu(ucode_capa->api_index); 476 u32 api_flags = le32_to_cpu(ucode_capa->api_capa); 477 int i; 478 479 if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) { 480 IWL_ERR(drv, 481 "capa flags index %d larger than supported by driver\n", 482 api_index); 483 /* don't return an error so we can load FW that has more bits */ 484 return 0; 485 } 486 487 for (i = 0; i < 32; i++) { 488 if (api_flags & BIT(i)) 489 __set_bit(i + 32 * api_index, capa->_capa); 490 } 491 492 return 0; 493 } 494 495 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, 496 const struct firmware *ucode_raw, 497 struct iwl_firmware_pieces *pieces) 498 { 499 struct iwl_ucode_header *ucode = (void *)ucode_raw->data; 500 u32 api_ver, hdr_size, build; 501 char buildstr[25]; 502 const u8 *src; 503 504 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 505 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 506 507 switch (api_ver) { 508 default: 509 hdr_size = 28; 510 if (ucode_raw->size < hdr_size) { 511 IWL_ERR(drv, "File size too small!\n"); 512 return -EINVAL; 513 } 514 build = le32_to_cpu(ucode->u.v2.build); 515 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 516 le32_to_cpu(ucode->u.v2.inst_size)); 517 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 518 le32_to_cpu(ucode->u.v2.data_size)); 519 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 520 le32_to_cpu(ucode->u.v2.init_size)); 521 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 522 le32_to_cpu(ucode->u.v2.init_data_size)); 523 src = ucode->u.v2.data; 524 break; 525 case 0: 526 case 1: 527 case 2: 528 hdr_size = 24; 529 if (ucode_raw->size < hdr_size) { 530 IWL_ERR(drv, "File size too small!\n"); 531 return -EINVAL; 532 } 533 build = 0; 534 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 535 le32_to_cpu(ucode->u.v1.inst_size)); 536 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 537 le32_to_cpu(ucode->u.v1.data_size)); 538 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 539 le32_to_cpu(ucode->u.v1.init_size)); 540 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 541 le32_to_cpu(ucode->u.v1.init_data_size)); 542 src = ucode->u.v1.data; 543 break; 544 } 545 546 if (build) 547 sprintf(buildstr, " build %u%s", build, 548 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) 549 ? " (EXP)" : ""); 550 else 551 buildstr[0] = '\0'; 552 553 snprintf(drv->fw.fw_version, 554 sizeof(drv->fw.fw_version), 555 "%u.%u.%u.%u%s", 556 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 557 IWL_UCODE_MINOR(drv->fw.ucode_ver), 558 IWL_UCODE_API(drv->fw.ucode_ver), 559 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 560 buildstr); 561 562 /* Verify size of file vs. image size info in file's header */ 563 564 if (ucode_raw->size != hdr_size + 565 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) + 566 get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) + 567 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) + 568 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) { 569 570 IWL_ERR(drv, 571 "uCode file size %d does not match expected size\n", 572 (int)ucode_raw->size); 573 return -EINVAL; 574 } 575 576 577 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src); 578 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST); 579 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, 580 IWLAGN_RTC_INST_LOWER_BOUND); 581 set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src); 582 src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA); 583 set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, 584 IWLAGN_RTC_DATA_LOWER_BOUND); 585 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src); 586 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST); 587 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, 588 IWLAGN_RTC_INST_LOWER_BOUND); 589 set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src); 590 src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA); 591 set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, 592 IWLAGN_RTC_DATA_LOWER_BOUND); 593 return 0; 594 } 595 596 static int iwl_parse_tlv_firmware(struct iwl_drv *drv, 597 const struct firmware *ucode_raw, 598 struct iwl_firmware_pieces *pieces, 599 struct iwl_ucode_capabilities *capa, 600 bool *usniffer_images) 601 { 602 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; 603 struct iwl_ucode_tlv *tlv; 604 size_t len = ucode_raw->size; 605 const u8 *data; 606 u32 tlv_len; 607 u32 usniffer_img; 608 enum iwl_ucode_tlv_type tlv_type; 609 const u8 *tlv_data; 610 char buildstr[25]; 611 u32 build, paging_mem_size; 612 int num_of_cpus; 613 bool usniffer_req = false; 614 bool gscan_capa = false; 615 616 if (len < sizeof(*ucode)) { 617 IWL_ERR(drv, "uCode has invalid length: %zd\n", len); 618 return -EINVAL; 619 } 620 621 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { 622 IWL_ERR(drv, "invalid uCode magic: 0X%x\n", 623 le32_to_cpu(ucode->magic)); 624 return -EINVAL; 625 } 626 627 drv->fw.ucode_ver = le32_to_cpu(ucode->ver); 628 memcpy(drv->fw.human_readable, ucode->human_readable, 629 sizeof(drv->fw.human_readable)); 630 build = le32_to_cpu(ucode->build); 631 632 if (build) 633 sprintf(buildstr, " build %u%s", build, 634 (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) 635 ? " (EXP)" : ""); 636 else 637 buildstr[0] = '\0'; 638 639 snprintf(drv->fw.fw_version, 640 sizeof(drv->fw.fw_version), 641 "%u.%u.%u.%u%s", 642 IWL_UCODE_MAJOR(drv->fw.ucode_ver), 643 IWL_UCODE_MINOR(drv->fw.ucode_ver), 644 IWL_UCODE_API(drv->fw.ucode_ver), 645 IWL_UCODE_SERIAL(drv->fw.ucode_ver), 646 buildstr); 647 648 data = ucode->data; 649 650 len -= sizeof(*ucode); 651 652 while (len >= sizeof(*tlv)) { 653 len -= sizeof(*tlv); 654 tlv = (void *)data; 655 656 tlv_len = le32_to_cpu(tlv->length); 657 tlv_type = le32_to_cpu(tlv->type); 658 tlv_data = tlv->data; 659 660 if (len < tlv_len) { 661 IWL_ERR(drv, "invalid TLV len: %zd/%u\n", 662 len, tlv_len); 663 return -EINVAL; 664 } 665 len -= ALIGN(tlv_len, 4); 666 data += sizeof(*tlv) + ALIGN(tlv_len, 4); 667 668 switch (tlv_type) { 669 case IWL_UCODE_TLV_INST: 670 set_sec_data(pieces, IWL_UCODE_REGULAR, 671 IWL_UCODE_SECTION_INST, tlv_data); 672 set_sec_size(pieces, IWL_UCODE_REGULAR, 673 IWL_UCODE_SECTION_INST, tlv_len); 674 set_sec_offset(pieces, IWL_UCODE_REGULAR, 675 IWL_UCODE_SECTION_INST, 676 IWLAGN_RTC_INST_LOWER_BOUND); 677 break; 678 case IWL_UCODE_TLV_DATA: 679 set_sec_data(pieces, IWL_UCODE_REGULAR, 680 IWL_UCODE_SECTION_DATA, tlv_data); 681 set_sec_size(pieces, IWL_UCODE_REGULAR, 682 IWL_UCODE_SECTION_DATA, tlv_len); 683 set_sec_offset(pieces, IWL_UCODE_REGULAR, 684 IWL_UCODE_SECTION_DATA, 685 IWLAGN_RTC_DATA_LOWER_BOUND); 686 break; 687 case IWL_UCODE_TLV_INIT: 688 set_sec_data(pieces, IWL_UCODE_INIT, 689 IWL_UCODE_SECTION_INST, tlv_data); 690 set_sec_size(pieces, IWL_UCODE_INIT, 691 IWL_UCODE_SECTION_INST, tlv_len); 692 set_sec_offset(pieces, IWL_UCODE_INIT, 693 IWL_UCODE_SECTION_INST, 694 IWLAGN_RTC_INST_LOWER_BOUND); 695 break; 696 case IWL_UCODE_TLV_INIT_DATA: 697 set_sec_data(pieces, IWL_UCODE_INIT, 698 IWL_UCODE_SECTION_DATA, tlv_data); 699 set_sec_size(pieces, IWL_UCODE_INIT, 700 IWL_UCODE_SECTION_DATA, tlv_len); 701 set_sec_offset(pieces, IWL_UCODE_INIT, 702 IWL_UCODE_SECTION_DATA, 703 IWLAGN_RTC_DATA_LOWER_BOUND); 704 break; 705 case IWL_UCODE_TLV_BOOT: 706 IWL_ERR(drv, "Found unexpected BOOT ucode\n"); 707 break; 708 case IWL_UCODE_TLV_PROBE_MAX_LEN: 709 if (tlv_len != sizeof(u32)) 710 goto invalid_tlv_len; 711 capa->max_probe_length = 712 le32_to_cpup((__le32 *)tlv_data); 713 break; 714 case IWL_UCODE_TLV_PAN: 715 if (tlv_len) 716 goto invalid_tlv_len; 717 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; 718 break; 719 case IWL_UCODE_TLV_FLAGS: 720 /* must be at least one u32 */ 721 if (tlv_len < sizeof(u32)) 722 goto invalid_tlv_len; 723 /* and a proper number of u32s */ 724 if (tlv_len % sizeof(u32)) 725 goto invalid_tlv_len; 726 /* 727 * This driver only reads the first u32 as 728 * right now no more features are defined, 729 * if that changes then either the driver 730 * will not work with the new firmware, or 731 * it'll not take advantage of new features. 732 */ 733 capa->flags = le32_to_cpup((__le32 *)tlv_data); 734 break; 735 case IWL_UCODE_TLV_API_CHANGES_SET: 736 if (tlv_len != sizeof(struct iwl_ucode_api)) 737 goto invalid_tlv_len; 738 if (iwl_set_ucode_api_flags(drv, tlv_data, capa)) 739 goto tlv_error; 740 break; 741 case IWL_UCODE_TLV_ENABLED_CAPABILITIES: 742 if (tlv_len != sizeof(struct iwl_ucode_capa)) 743 goto invalid_tlv_len; 744 if (iwl_set_ucode_capabilities(drv, tlv_data, capa)) 745 goto tlv_error; 746 break; 747 case IWL_UCODE_TLV_INIT_EVTLOG_PTR: 748 if (tlv_len != sizeof(u32)) 749 goto invalid_tlv_len; 750 pieces->init_evtlog_ptr = 751 le32_to_cpup((__le32 *)tlv_data); 752 break; 753 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: 754 if (tlv_len != sizeof(u32)) 755 goto invalid_tlv_len; 756 pieces->init_evtlog_size = 757 le32_to_cpup((__le32 *)tlv_data); 758 break; 759 case IWL_UCODE_TLV_INIT_ERRLOG_PTR: 760 if (tlv_len != sizeof(u32)) 761 goto invalid_tlv_len; 762 pieces->init_errlog_ptr = 763 le32_to_cpup((__le32 *)tlv_data); 764 break; 765 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: 766 if (tlv_len != sizeof(u32)) 767 goto invalid_tlv_len; 768 pieces->inst_evtlog_ptr = 769 le32_to_cpup((__le32 *)tlv_data); 770 break; 771 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: 772 if (tlv_len != sizeof(u32)) 773 goto invalid_tlv_len; 774 pieces->inst_evtlog_size = 775 le32_to_cpup((__le32 *)tlv_data); 776 break; 777 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: 778 if (tlv_len != sizeof(u32)) 779 goto invalid_tlv_len; 780 pieces->inst_errlog_ptr = 781 le32_to_cpup((__le32 *)tlv_data); 782 break; 783 case IWL_UCODE_TLV_ENHANCE_SENS_TBL: 784 if (tlv_len) 785 goto invalid_tlv_len; 786 drv->fw.enhance_sensitivity_table = true; 787 break; 788 case IWL_UCODE_TLV_WOWLAN_INST: 789 set_sec_data(pieces, IWL_UCODE_WOWLAN, 790 IWL_UCODE_SECTION_INST, tlv_data); 791 set_sec_size(pieces, IWL_UCODE_WOWLAN, 792 IWL_UCODE_SECTION_INST, tlv_len); 793 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 794 IWL_UCODE_SECTION_INST, 795 IWLAGN_RTC_INST_LOWER_BOUND); 796 break; 797 case IWL_UCODE_TLV_WOWLAN_DATA: 798 set_sec_data(pieces, IWL_UCODE_WOWLAN, 799 IWL_UCODE_SECTION_DATA, tlv_data); 800 set_sec_size(pieces, IWL_UCODE_WOWLAN, 801 IWL_UCODE_SECTION_DATA, tlv_len); 802 set_sec_offset(pieces, IWL_UCODE_WOWLAN, 803 IWL_UCODE_SECTION_DATA, 804 IWLAGN_RTC_DATA_LOWER_BOUND); 805 break; 806 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: 807 if (tlv_len != sizeof(u32)) 808 goto invalid_tlv_len; 809 capa->standard_phy_calibration_size = 810 le32_to_cpup((__le32 *)tlv_data); 811 break; 812 case IWL_UCODE_TLV_SEC_RT: 813 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 814 tlv_len); 815 drv->fw.mvm_fw = true; 816 break; 817 case IWL_UCODE_TLV_SEC_INIT: 818 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 819 tlv_len); 820 drv->fw.mvm_fw = true; 821 break; 822 case IWL_UCODE_TLV_SEC_WOWLAN: 823 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 824 tlv_len); 825 drv->fw.mvm_fw = true; 826 break; 827 case IWL_UCODE_TLV_DEF_CALIB: 828 if (tlv_len != sizeof(struct iwl_tlv_calib_data)) 829 goto invalid_tlv_len; 830 if (iwl_set_default_calib(drv, tlv_data)) 831 goto tlv_error; 832 break; 833 case IWL_UCODE_TLV_PHY_SKU: 834 if (tlv_len != sizeof(u32)) 835 goto invalid_tlv_len; 836 drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); 837 drv->fw.valid_tx_ant = (drv->fw.phy_config & 838 FW_PHY_CFG_TX_CHAIN) >> 839 FW_PHY_CFG_TX_CHAIN_POS; 840 drv->fw.valid_rx_ant = (drv->fw.phy_config & 841 FW_PHY_CFG_RX_CHAIN) >> 842 FW_PHY_CFG_RX_CHAIN_POS; 843 break; 844 case IWL_UCODE_TLV_SECURE_SEC_RT: 845 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, 846 tlv_len); 847 drv->fw.mvm_fw = true; 848 break; 849 case IWL_UCODE_TLV_SECURE_SEC_INIT: 850 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, 851 tlv_len); 852 drv->fw.mvm_fw = true; 853 break; 854 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: 855 iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, 856 tlv_len); 857 drv->fw.mvm_fw = true; 858 break; 859 case IWL_UCODE_TLV_NUM_OF_CPU: 860 if (tlv_len != sizeof(u32)) 861 goto invalid_tlv_len; 862 num_of_cpus = 863 le32_to_cpup((__le32 *)tlv_data); 864 865 if (num_of_cpus == 2) { 866 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = 867 true; 868 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = 869 true; 870 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = 871 true; 872 } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { 873 IWL_ERR(drv, "Driver support upto 2 CPUs\n"); 874 return -EINVAL; 875 } 876 break; 877 case IWL_UCODE_TLV_CSCHEME: 878 if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) 879 goto invalid_tlv_len; 880 break; 881 case IWL_UCODE_TLV_N_SCAN_CHANNELS: 882 if (tlv_len != sizeof(u32)) 883 goto invalid_tlv_len; 884 capa->n_scan_channels = 885 le32_to_cpup((__le32 *)tlv_data); 886 break; 887 case IWL_UCODE_TLV_FW_VERSION: { 888 __le32 *ptr = (void *)tlv_data; 889 u32 major, minor; 890 u8 local_comp; 891 892 if (tlv_len != sizeof(u32) * 3) 893 goto invalid_tlv_len; 894 895 major = le32_to_cpup(ptr++); 896 minor = le32_to_cpup(ptr++); 897 local_comp = le32_to_cpup(ptr); 898 899 snprintf(drv->fw.fw_version, 900 sizeof(drv->fw.fw_version), "%u.%u.%u", 901 major, minor, local_comp); 902 break; 903 } 904 case IWL_UCODE_TLV_FW_DBG_DEST: { 905 struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data; 906 907 if (pieces->dbg_dest_tlv) { 908 IWL_ERR(drv, 909 "dbg destination ignored, already exists\n"); 910 break; 911 } 912 913 pieces->dbg_dest_tlv = dest; 914 IWL_INFO(drv, "Found debug destination: %s\n", 915 get_fw_dbg_mode_string(dest->monitor_mode)); 916 917 drv->fw.dbg_dest_reg_num = 918 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv, 919 reg_ops); 920 drv->fw.dbg_dest_reg_num /= 921 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]); 922 923 break; 924 } 925 case IWL_UCODE_TLV_FW_DBG_CONF: { 926 struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data; 927 928 if (!pieces->dbg_dest_tlv) { 929 IWL_ERR(drv, 930 "Ignore dbg config %d - no destination configured\n", 931 conf->id); 932 break; 933 } 934 935 if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) { 936 IWL_ERR(drv, 937 "Skip unknown configuration: %d\n", 938 conf->id); 939 break; 940 } 941 942 if (pieces->dbg_conf_tlv[conf->id]) { 943 IWL_ERR(drv, 944 "Ignore duplicate dbg config %d\n", 945 conf->id); 946 break; 947 } 948 949 if (conf->usniffer) 950 usniffer_req = true; 951 952 IWL_INFO(drv, "Found debug configuration: %d\n", 953 conf->id); 954 955 pieces->dbg_conf_tlv[conf->id] = conf; 956 pieces->dbg_conf_tlv_len[conf->id] = tlv_len; 957 break; 958 } 959 case IWL_UCODE_TLV_FW_DBG_TRIGGER: { 960 struct iwl_fw_dbg_trigger_tlv *trigger = 961 (void *)tlv_data; 962 u32 trigger_id = le32_to_cpu(trigger->id); 963 964 if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) { 965 IWL_ERR(drv, 966 "Skip unknown trigger: %u\n", 967 trigger->id); 968 break; 969 } 970 971 if (pieces->dbg_trigger_tlv[trigger_id]) { 972 IWL_ERR(drv, 973 "Ignore duplicate dbg trigger %u\n", 974 trigger->id); 975 break; 976 } 977 978 IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id); 979 980 pieces->dbg_trigger_tlv[trigger_id] = trigger; 981 pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len; 982 break; 983 } 984 case IWL_UCODE_TLV_SEC_RT_USNIFFER: 985 *usniffer_images = true; 986 iwl_store_ucode_sec(pieces, tlv_data, 987 IWL_UCODE_REGULAR_USNIFFER, 988 tlv_len); 989 break; 990 case IWL_UCODE_TLV_PAGING: 991 if (tlv_len != sizeof(u32)) 992 goto invalid_tlv_len; 993 paging_mem_size = le32_to_cpup((__le32 *)tlv_data); 994 995 IWL_DEBUG_FW(drv, 996 "Paging: paging enabled (size = %u bytes)\n", 997 paging_mem_size); 998 999 if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) { 1000 IWL_ERR(drv, 1001 "Paging: driver supports up to %lu bytes for paging image\n", 1002 MAX_PAGING_IMAGE_SIZE); 1003 return -EINVAL; 1004 } 1005 1006 if (paging_mem_size & (FW_PAGING_SIZE - 1)) { 1007 IWL_ERR(drv, 1008 "Paging: image isn't multiple %lu\n", 1009 FW_PAGING_SIZE); 1010 return -EINVAL; 1011 } 1012 1013 drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size = 1014 paging_mem_size; 1015 usniffer_img = IWL_UCODE_REGULAR_USNIFFER; 1016 drv->fw.img[usniffer_img].paging_mem_size = 1017 paging_mem_size; 1018 break; 1019 case IWL_UCODE_TLV_SDIO_ADMA_ADDR: 1020 if (tlv_len != sizeof(u32)) 1021 goto invalid_tlv_len; 1022 drv->fw.sdio_adma_addr = 1023 le32_to_cpup((__le32 *)tlv_data); 1024 break; 1025 case IWL_UCODE_TLV_FW_GSCAN_CAPA: 1026 if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len)) 1027 goto invalid_tlv_len; 1028 gscan_capa = true; 1029 break; 1030 default: 1031 IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); 1032 break; 1033 } 1034 } 1035 1036 if (usniffer_req && !*usniffer_images) { 1037 IWL_ERR(drv, 1038 "user selected to work with usniffer but usniffer image isn't available in ucode package\n"); 1039 return -EINVAL; 1040 } 1041 1042 if (len) { 1043 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len); 1044 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len); 1045 return -EINVAL; 1046 } 1047 1048 /* 1049 * If ucode advertises that it supports GSCAN but GSCAN 1050 * capabilities TLV is not present, warn and continue without GSCAN. 1051 */ 1052 if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) && 1053 WARN(!gscan_capa, 1054 "GSCAN is supported but capabilities TLV is unavailable\n")) 1055 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT, 1056 capa->_capa); 1057 1058 return 0; 1059 1060 invalid_tlv_len: 1061 IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); 1062 tlv_error: 1063 iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len); 1064 1065 return -EINVAL; 1066 } 1067 1068 static int iwl_alloc_ucode(struct iwl_drv *drv, 1069 struct iwl_firmware_pieces *pieces, 1070 enum iwl_ucode_type type) 1071 { 1072 int i; 1073 for (i = 0; 1074 i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i); 1075 i++) 1076 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]), 1077 get_sec(pieces, type, i))) 1078 return -ENOMEM; 1079 return 0; 1080 } 1081 1082 static int validate_sec_sizes(struct iwl_drv *drv, 1083 struct iwl_firmware_pieces *pieces, 1084 const struct iwl_cfg *cfg) 1085 { 1086 IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n", 1087 get_sec_size(pieces, IWL_UCODE_REGULAR, 1088 IWL_UCODE_SECTION_INST)); 1089 IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n", 1090 get_sec_size(pieces, IWL_UCODE_REGULAR, 1091 IWL_UCODE_SECTION_DATA)); 1092 IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n", 1093 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST)); 1094 IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n", 1095 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)); 1096 1097 /* Verify that uCode images will fit in card's SRAM. */ 1098 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) > 1099 cfg->max_inst_size) { 1100 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n", 1101 get_sec_size(pieces, IWL_UCODE_REGULAR, 1102 IWL_UCODE_SECTION_INST)); 1103 return -1; 1104 } 1105 1106 if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) > 1107 cfg->max_data_size) { 1108 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n", 1109 get_sec_size(pieces, IWL_UCODE_REGULAR, 1110 IWL_UCODE_SECTION_DATA)); 1111 return -1; 1112 } 1113 1114 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) > 1115 cfg->max_inst_size) { 1116 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n", 1117 get_sec_size(pieces, IWL_UCODE_INIT, 1118 IWL_UCODE_SECTION_INST)); 1119 return -1; 1120 } 1121 1122 if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) > 1123 cfg->max_data_size) { 1124 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n", 1125 get_sec_size(pieces, IWL_UCODE_REGULAR, 1126 IWL_UCODE_SECTION_DATA)); 1127 return -1; 1128 } 1129 return 0; 1130 } 1131 1132 static struct iwl_op_mode * 1133 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) 1134 { 1135 const struct iwl_op_mode_ops *ops = op->ops; 1136 struct dentry *dbgfs_dir = NULL; 1137 struct iwl_op_mode *op_mode = NULL; 1138 1139 #ifdef CONFIG_IWLWIFI_DEBUGFS 1140 drv->dbgfs_op_mode = debugfs_create_dir(op->name, 1141 drv->dbgfs_drv); 1142 if (!drv->dbgfs_op_mode) { 1143 IWL_ERR(drv, 1144 "failed to create opmode debugfs directory\n"); 1145 return op_mode; 1146 } 1147 dbgfs_dir = drv->dbgfs_op_mode; 1148 #endif 1149 1150 op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir); 1151 1152 #ifdef CONFIG_IWLWIFI_DEBUGFS 1153 if (!op_mode) { 1154 debugfs_remove_recursive(drv->dbgfs_op_mode); 1155 drv->dbgfs_op_mode = NULL; 1156 } 1157 #endif 1158 1159 return op_mode; 1160 } 1161 1162 static void _iwl_op_mode_stop(struct iwl_drv *drv) 1163 { 1164 /* op_mode can be NULL if its start failed */ 1165 if (drv->op_mode) { 1166 iwl_op_mode_stop(drv->op_mode); 1167 drv->op_mode = NULL; 1168 1169 #ifdef CONFIG_IWLWIFI_DEBUGFS 1170 debugfs_remove_recursive(drv->dbgfs_op_mode); 1171 drv->dbgfs_op_mode = NULL; 1172 #endif 1173 } 1174 } 1175 1176 /** 1177 * iwl_req_fw_callback - callback when firmware was loaded 1178 * 1179 * If loaded successfully, copies the firmware into buffers 1180 * for the card to fetch (via DMA). 1181 */ 1182 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) 1183 { 1184 struct iwl_drv *drv = context; 1185 struct iwl_fw *fw = &drv->fw; 1186 struct iwl_ucode_header *ucode; 1187 struct iwlwifi_opmode_table *op; 1188 int err; 1189 struct iwl_firmware_pieces *pieces; 1190 const unsigned int api_max = drv->cfg->ucode_api_max; 1191 unsigned int api_ok = drv->cfg->ucode_api_ok; 1192 const unsigned int api_min = drv->cfg->ucode_api_min; 1193 size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX]; 1194 u32 api_ver; 1195 int i; 1196 bool load_module = false; 1197 bool usniffer_images = false; 1198 1199 fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; 1200 fw->ucode_capa.standard_phy_calibration_size = 1201 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1202 fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS; 1203 1204 if (!api_ok) 1205 api_ok = api_max; 1206 1207 pieces = kzalloc(sizeof(*pieces), GFP_KERNEL); 1208 if (!pieces) 1209 return; 1210 1211 if (!ucode_raw) { 1212 if (drv->fw_index <= api_ok) 1213 IWL_ERR(drv, 1214 "request for firmware file '%s' failed.\n", 1215 drv->firmware_name); 1216 goto try_again; 1217 } 1218 1219 IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n", 1220 drv->firmware_name, ucode_raw->size); 1221 1222 /* Make sure that we got at least the API version number */ 1223 if (ucode_raw->size < 4) { 1224 IWL_ERR(drv, "File size way too small!\n"); 1225 goto try_again; 1226 } 1227 1228 /* Data from ucode file: header followed by uCode images */ 1229 ucode = (struct iwl_ucode_header *)ucode_raw->data; 1230 1231 if (ucode->ver) 1232 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces); 1233 else 1234 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces, 1235 &fw->ucode_capa, &usniffer_images); 1236 1237 if (err) 1238 goto try_again; 1239 1240 if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION)) 1241 api_ver = drv->fw.ucode_ver; 1242 else 1243 api_ver = IWL_UCODE_API(drv->fw.ucode_ver); 1244 1245 /* 1246 * api_ver should match the api version forming part of the 1247 * firmware filename ... but we don't check for that and only rely 1248 * on the API version read from firmware header from here on forward 1249 */ 1250 /* no api version check required for experimental uCode */ 1251 if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) { 1252 if (api_ver < api_min || api_ver > api_max) { 1253 IWL_ERR(drv, 1254 "Driver unable to support your firmware API. " 1255 "Driver supports v%u, firmware is v%u.\n", 1256 api_max, api_ver); 1257 goto try_again; 1258 } 1259 1260 if (api_ver < api_ok) { 1261 if (api_ok != api_max) 1262 IWL_ERR(drv, "Firmware has old API version, " 1263 "expected v%u through v%u, got v%u.\n", 1264 api_ok, api_max, api_ver); 1265 else 1266 IWL_ERR(drv, "Firmware has old API version, " 1267 "expected v%u, got v%u.\n", 1268 api_max, api_ver); 1269 IWL_ERR(drv, "New firmware can be obtained from " 1270 "http://www.intellinuxwireless.org/.\n"); 1271 } 1272 } 1273 1274 /* 1275 * In mvm uCode there is no difference between data and instructions 1276 * sections. 1277 */ 1278 if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg)) 1279 goto try_again; 1280 1281 /* Allocate ucode buffers for card's bus-master loading ... */ 1282 1283 /* Runtime instructions and 2 copies of data: 1284 * 1) unmodified from disk 1285 * 2) backup cache for save/restore during power-downs */ 1286 for (i = 0; i < IWL_UCODE_TYPE_MAX; i++) 1287 if (iwl_alloc_ucode(drv, pieces, i)) 1288 goto out_free_fw; 1289 1290 if (pieces->dbg_dest_tlv) { 1291 drv->fw.dbg_dest_tlv = 1292 kmemdup(pieces->dbg_dest_tlv, 1293 sizeof(*pieces->dbg_dest_tlv) + 1294 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) * 1295 drv->fw.dbg_dest_reg_num, GFP_KERNEL); 1296 1297 if (!drv->fw.dbg_dest_tlv) 1298 goto out_free_fw; 1299 } 1300 1301 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) { 1302 if (pieces->dbg_conf_tlv[i]) { 1303 drv->fw.dbg_conf_tlv_len[i] = 1304 pieces->dbg_conf_tlv_len[i]; 1305 drv->fw.dbg_conf_tlv[i] = 1306 kmemdup(pieces->dbg_conf_tlv[i], 1307 drv->fw.dbg_conf_tlv_len[i], 1308 GFP_KERNEL); 1309 if (!drv->fw.dbg_conf_tlv[i]) 1310 goto out_free_fw; 1311 } 1312 } 1313 1314 memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz)); 1315 1316 trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] = 1317 sizeof(struct iwl_fw_dbg_trigger_missed_bcon); 1318 trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0; 1319 trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] = 1320 sizeof(struct iwl_fw_dbg_trigger_cmd); 1321 trigger_tlv_sz[FW_DBG_TRIGGER_MLME] = 1322 sizeof(struct iwl_fw_dbg_trigger_mlme); 1323 trigger_tlv_sz[FW_DBG_TRIGGER_STATS] = 1324 sizeof(struct iwl_fw_dbg_trigger_stats); 1325 trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] = 1326 sizeof(struct iwl_fw_dbg_trigger_low_rssi); 1327 trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] = 1328 sizeof(struct iwl_fw_dbg_trigger_txq_timer); 1329 trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] = 1330 sizeof(struct iwl_fw_dbg_trigger_time_event); 1331 trigger_tlv_sz[FW_DBG_TRIGGER_BA] = 1332 sizeof(struct iwl_fw_dbg_trigger_ba); 1333 trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] = 1334 sizeof(struct iwl_fw_dbg_trigger_tdls); 1335 1336 for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) { 1337 if (pieces->dbg_trigger_tlv[i]) { 1338 /* 1339 * If the trigger isn't long enough, WARN and exit. 1340 * Someone is trying to debug something and he won't 1341 * be able to catch the bug he is trying to chase. 1342 * We'd better be noisy to be sure he knows what's 1343 * going on. 1344 */ 1345 if (WARN_ON(pieces->dbg_trigger_tlv_len[i] < 1346 (trigger_tlv_sz[i] + 1347 sizeof(struct iwl_fw_dbg_trigger_tlv)))) 1348 goto out_free_fw; 1349 drv->fw.dbg_trigger_tlv_len[i] = 1350 pieces->dbg_trigger_tlv_len[i]; 1351 drv->fw.dbg_trigger_tlv[i] = 1352 kmemdup(pieces->dbg_trigger_tlv[i], 1353 drv->fw.dbg_trigger_tlv_len[i], 1354 GFP_KERNEL); 1355 if (!drv->fw.dbg_trigger_tlv[i]) 1356 goto out_free_fw; 1357 } 1358 } 1359 1360 /* Now that we can no longer fail, copy information */ 1361 1362 /* 1363 * The (size - 16) / 12 formula is based on the information recorded 1364 * for each event, which is of mode 1 (including timestamp) for all 1365 * new microcodes that include this information. 1366 */ 1367 fw->init_evtlog_ptr = pieces->init_evtlog_ptr; 1368 if (pieces->init_evtlog_size) 1369 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12; 1370 else 1371 fw->init_evtlog_size = 1372 drv->cfg->base_params->max_event_log_size; 1373 fw->init_errlog_ptr = pieces->init_errlog_ptr; 1374 fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr; 1375 if (pieces->inst_evtlog_size) 1376 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12; 1377 else 1378 fw->inst_evtlog_size = 1379 drv->cfg->base_params->max_event_log_size; 1380 fw->inst_errlog_ptr = pieces->inst_errlog_ptr; 1381 1382 /* 1383 * figure out the offset of chain noise reset and gain commands 1384 * base on the size of standard phy calibration commands table size 1385 */ 1386 if (fw->ucode_capa.standard_phy_calibration_size > 1387 IWL_MAX_PHY_CALIBRATE_TBL_SIZE) 1388 fw->ucode_capa.standard_phy_calibration_size = 1389 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; 1390 1391 /* We have our copies now, allow OS release its copies */ 1392 release_firmware(ucode_raw); 1393 1394 mutex_lock(&iwlwifi_opmode_table_mtx); 1395 if (fw->mvm_fw) 1396 op = &iwlwifi_opmode_table[MVM_OP_MODE]; 1397 else 1398 op = &iwlwifi_opmode_table[DVM_OP_MODE]; 1399 1400 IWL_INFO(drv, "loaded firmware version %s op_mode %s\n", 1401 drv->fw.fw_version, op->name); 1402 1403 /* add this device to the list of devices using this op_mode */ 1404 list_add_tail(&drv->list, &op->drv); 1405 1406 if (op->ops) { 1407 drv->op_mode = _iwl_op_mode_start(drv, op); 1408 1409 if (!drv->op_mode) { 1410 mutex_unlock(&iwlwifi_opmode_table_mtx); 1411 goto out_unbind; 1412 } 1413 } else { 1414 load_module = true; 1415 } 1416 mutex_unlock(&iwlwifi_opmode_table_mtx); 1417 1418 /* 1419 * Complete the firmware request last so that 1420 * a driver unbind (stop) doesn't run while we 1421 * are doing the start() above. 1422 */ 1423 complete(&drv->request_firmware_complete); 1424 1425 /* 1426 * Load the module last so we don't block anything 1427 * else from proceeding if the module fails to load 1428 * or hangs loading. 1429 */ 1430 if (load_module) { 1431 err = request_module("%s", op->name); 1432 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR 1433 if (err) 1434 IWL_ERR(drv, 1435 "failed to load module %s (error %d), is dynamic loading enabled?\n", 1436 op->name, err); 1437 #endif 1438 } 1439 kfree(pieces); 1440 return; 1441 1442 try_again: 1443 /* try next, if any */ 1444 release_firmware(ucode_raw); 1445 if (iwl_request_firmware(drv, false)) 1446 goto out_unbind; 1447 kfree(pieces); 1448 return; 1449 1450 out_free_fw: 1451 IWL_ERR(drv, "failed to allocate pci memory\n"); 1452 iwl_dealloc_ucode(drv); 1453 release_firmware(ucode_raw); 1454 out_unbind: 1455 kfree(pieces); 1456 complete(&drv->request_firmware_complete); 1457 device_release_driver(drv->trans->dev); 1458 } 1459 1460 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans, 1461 const struct iwl_cfg *cfg) 1462 { 1463 struct iwl_drv *drv; 1464 int ret; 1465 1466 drv = kzalloc(sizeof(*drv), GFP_KERNEL); 1467 if (!drv) { 1468 ret = -ENOMEM; 1469 goto err; 1470 } 1471 1472 drv->trans = trans; 1473 drv->dev = trans->dev; 1474 drv->cfg = cfg; 1475 1476 init_completion(&drv->request_firmware_complete); 1477 INIT_LIST_HEAD(&drv->list); 1478 1479 #ifdef CONFIG_IWLWIFI_DEBUGFS 1480 /* Create the device debugfs entries. */ 1481 drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev), 1482 iwl_dbgfs_root); 1483 1484 if (!drv->dbgfs_drv) { 1485 IWL_ERR(drv, "failed to create debugfs directory\n"); 1486 ret = -ENOMEM; 1487 goto err_free_drv; 1488 } 1489 1490 /* Create transport layer debugfs dir */ 1491 drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv); 1492 1493 if (!drv->trans->dbgfs_dir) { 1494 IWL_ERR(drv, "failed to create transport debugfs directory\n"); 1495 ret = -ENOMEM; 1496 goto err_free_dbgfs; 1497 } 1498 #endif 1499 1500 ret = iwl_request_firmware(drv, true); 1501 if (ret) { 1502 IWL_ERR(trans, "Couldn't request the fw\n"); 1503 goto err_fw; 1504 } 1505 1506 return drv; 1507 1508 err_fw: 1509 #ifdef CONFIG_IWLWIFI_DEBUGFS 1510 err_free_dbgfs: 1511 debugfs_remove_recursive(drv->dbgfs_drv); 1512 err_free_drv: 1513 #endif 1514 kfree(drv); 1515 err: 1516 return ERR_PTR(ret); 1517 } 1518 1519 void iwl_drv_stop(struct iwl_drv *drv) 1520 { 1521 wait_for_completion(&drv->request_firmware_complete); 1522 1523 _iwl_op_mode_stop(drv); 1524 1525 iwl_dealloc_ucode(drv); 1526 1527 mutex_lock(&iwlwifi_opmode_table_mtx); 1528 /* 1529 * List is empty (this item wasn't added) 1530 * when firmware loading failed -- in that 1531 * case we can't remove it from any list. 1532 */ 1533 if (!list_empty(&drv->list)) 1534 list_del(&drv->list); 1535 mutex_unlock(&iwlwifi_opmode_table_mtx); 1536 1537 #ifdef CONFIG_IWLWIFI_DEBUGFS 1538 debugfs_remove_recursive(drv->dbgfs_drv); 1539 #endif 1540 1541 kfree(drv); 1542 } 1543 1544 1545 /* shared module parameters */ 1546 struct iwl_mod_params iwlwifi_mod_params = { 1547 .restart_fw = true, 1548 .bt_coex_active = true, 1549 .power_level = IWL_POWER_INDEX_1, 1550 .d0i3_disable = true, 1551 .d0i3_entry_delay = 1000, 1552 #ifndef CONFIG_IWLWIFI_UAPSD 1553 .uapsd_disable = true, 1554 #endif /* CONFIG_IWLWIFI_UAPSD */ 1555 /* the rest are 0 by default */ 1556 }; 1557 IWL_EXPORT_SYMBOL(iwlwifi_mod_params); 1558 1559 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops) 1560 { 1561 int i; 1562 struct iwl_drv *drv; 1563 struct iwlwifi_opmode_table *op; 1564 1565 mutex_lock(&iwlwifi_opmode_table_mtx); 1566 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1567 op = &iwlwifi_opmode_table[i]; 1568 if (strcmp(op->name, name)) 1569 continue; 1570 op->ops = ops; 1571 /* TODO: need to handle exceptional case */ 1572 list_for_each_entry(drv, &op->drv, list) 1573 drv->op_mode = _iwl_op_mode_start(drv, op); 1574 1575 mutex_unlock(&iwlwifi_opmode_table_mtx); 1576 return 0; 1577 } 1578 mutex_unlock(&iwlwifi_opmode_table_mtx); 1579 return -EIO; 1580 } 1581 IWL_EXPORT_SYMBOL(iwl_opmode_register); 1582 1583 void iwl_opmode_deregister(const char *name) 1584 { 1585 int i; 1586 struct iwl_drv *drv; 1587 1588 mutex_lock(&iwlwifi_opmode_table_mtx); 1589 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) { 1590 if (strcmp(iwlwifi_opmode_table[i].name, name)) 1591 continue; 1592 iwlwifi_opmode_table[i].ops = NULL; 1593 1594 /* call the stop routine for all devices */ 1595 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) 1596 _iwl_op_mode_stop(drv); 1597 1598 mutex_unlock(&iwlwifi_opmode_table_mtx); 1599 return; 1600 } 1601 mutex_unlock(&iwlwifi_opmode_table_mtx); 1602 } 1603 IWL_EXPORT_SYMBOL(iwl_opmode_deregister); 1604 1605 static int __init iwl_drv_init(void) 1606 { 1607 int i; 1608 1609 mutex_init(&iwlwifi_opmode_table_mtx); 1610 1611 for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) 1612 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv); 1613 1614 pr_info(DRV_DESCRIPTION "\n"); 1615 pr_info(DRV_COPYRIGHT "\n"); 1616 1617 #ifdef CONFIG_IWLWIFI_DEBUGFS 1618 /* Create the root of iwlwifi debugfs subsystem. */ 1619 iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL); 1620 1621 if (!iwl_dbgfs_root) 1622 return -EFAULT; 1623 #endif 1624 1625 return iwl_pci_register_driver(); 1626 } 1627 module_init(iwl_drv_init); 1628 1629 static void __exit iwl_drv_exit(void) 1630 { 1631 iwl_pci_unregister_driver(); 1632 1633 #ifdef CONFIG_IWLWIFI_DEBUGFS 1634 debugfs_remove_recursive(iwl_dbgfs_root); 1635 #endif 1636 } 1637 module_exit(iwl_drv_exit); 1638 1639 #ifdef CONFIG_IWLWIFI_DEBUG 1640 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 1641 S_IRUGO | S_IWUSR); 1642 MODULE_PARM_DESC(debug, "debug output mask"); 1643 #endif 1644 1645 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO); 1646 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); 1647 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO); 1648 MODULE_PARM_DESC(11n_disable, 1649 "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); 1650 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, 1651 int, S_IRUGO); 1652 MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)"); 1653 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO); 1654 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)"); 1655 1656 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling, 1657 int, S_IRUGO); 1658 MODULE_PARM_DESC(antenna_coupling, 1659 "specify antenna coupling in dB (default: 0 dB)"); 1660 1661 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO); 1662 MODULE_PARM_DESC(nvm_file, "NVM file name"); 1663 1664 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, 1665 bool, S_IRUGO); 1666 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)"); 1667 1668 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, 1669 bool, S_IRUGO); 1670 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)"); 1671 1672 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, 1673 bool, S_IRUGO | S_IWUSR); 1674 #ifdef CONFIG_IWLWIFI_UAPSD 1675 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)"); 1676 #else 1677 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)"); 1678 #endif 1679 1680 /* 1681 * set bt_coex_active to true, uCode will do kill/defer 1682 * every time the priority line is asserted (BT is sending signals on the 1683 * priority line in the PCIx). 1684 * set bt_coex_active to false, uCode will ignore the BT activity and 1685 * perform the normal operation 1686 * 1687 * User might experience transmit issue on some platform due to WiFi/BT 1688 * co-exist problem. The possible behaviors are: 1689 * Able to scan and finding all the available AP 1690 * Not able to associate with any AP 1691 * On those platforms, WiFi communication can be restored by set 1692 * "bt_coex_active" module parameter to "false" 1693 * 1694 * default: bt_coex_active = true (BT_COEX_ENABLE) 1695 */ 1696 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active, 1697 bool, S_IRUGO); 1698 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); 1699 1700 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO); 1701 MODULE_PARM_DESC(led_mode, "0=system default, " 1702 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)"); 1703 1704 module_param_named(power_save, iwlwifi_mod_params.power_save, 1705 bool, S_IRUGO); 1706 MODULE_PARM_DESC(power_save, 1707 "enable WiFi power management (default: disable)"); 1708 1709 module_param_named(power_level, iwlwifi_mod_params.power_level, 1710 int, S_IRUGO); 1711 MODULE_PARM_DESC(power_level, 1712 "default power save level (range from 1 - 5, default: 1)"); 1713 1714 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO); 1715 MODULE_PARM_DESC(fw_monitor, 1716 "firmware monitor - to debug FW (default: false - needs lots of memory)"); 1717 1718 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay, 1719 uint, S_IRUGO); 1720 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)"); 1721