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