drivers/net/wireless/intel/iwlwifi/iwl-drv.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  *  * Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *  * Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in
  48  *    the documentation and/or other materials provided with the
  49  *    distribution.
  50  *  * Neither the name Intel Corporation nor the names of its
  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/completion.h>
  68 #include <linux/dma-mapping.h>
  69 #include <linux/firmware.h>
  70 #include <linux/module.h>
  71 #include <linux/vmalloc.h>
  72
  73 #include "iwl-drv.h"
  74 #include "iwl-csr.h"
  75 #include "iwl-debug.h"
  76 #include "iwl-trans.h"
  77 #include "iwl-op-mode.h"
  78 #include "iwl-agn-hw.h"
  79 #include "fw/img.h"
  80 #include "iwl-config.h"
  81 #include "iwl-modparams.h"
  82
  83 /******************************************************************************
  84  *
  85  * module boiler plate
  86  *
  87  ******************************************************************************/
  88
  89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  92 MODULE_LICENSE("GPL");
  93
  94 #ifdef CONFIG_IWLWIFI_DEBUGFS
  95 static struct dentry *iwl_dbgfs_root;
  96 #endif
  97
  98 /**
  99  * struct iwl_drv - drv common data
 100  * @list: list of drv structures using this opmode
 101  * @fw: the iwl_fw structure
 102  * @op_mode: the running op_mode
 103  * @trans: transport layer
 104  * @dev: for debug prints only
 105  * @fw_index: firmware revision to try loading
 106  * @firmware_name: composite filename of ucode file to load
 107  * @request_firmware_complete: the firmware has been obtained from user space
 108  */
 109 struct iwl_drv {
 110         struct list_head list;
 111         struct iwl_fw fw;
 112
 113         struct iwl_op_mode *op_mode;
 114         struct iwl_trans *trans;
 115         struct device *dev;
 116
 117         int fw_index;                   /* firmware we're trying to load */
 118         char firmware_name[64];         /* name of firmware file to load */
 119
 120         struct completion request_firmware_complete;
 121
 122 #ifdef CONFIG_IWLWIFI_DEBUGFS
 123         struct dentry *dbgfs_drv;
 124         struct dentry *dbgfs_trans;
 125         struct dentry *dbgfs_op_mode;
 126 #endif
 127 };
 128
 129 enum {
 130         DVM_OP_MODE,
 131         MVM_OP_MODE,
 132 };
 133
 134 /* Protects the table contents, i.e. the ops pointer & drv list */
 135 static struct mutex iwlwifi_opmode_table_mtx;
 136 static struct iwlwifi_opmode_table {
 137         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 138         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 139         struct list_head drv;           /* list of devices using this op_mode */
 140 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 141         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 142         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 143 };
 144
 145 #define IWL_DEFAULT_SCAN_CHANNELS 40
 146
 147 /*
 148  * struct fw_sec: Just for the image parsing process.
 149  * For the fw storage we are using struct fw_desc.
 150  */
 151 struct fw_sec {
 152         const void *data;               /* the sec data */
 153         size_t size;                    /* section size */
 154         u32 offset;                     /* offset of writing in the device */
 155 };
 156
 157 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 158 {
 159         vfree(desc->data);
 160         desc->data = NULL;
 161         desc->len = 0;
 162 }
 163
 164 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 165 {
 166         int i;
 167         for (i = 0; i < img->num_sec; i++)
 168                 iwl_free_fw_desc(drv, &img->sec[i]);
 169         kfree(img->sec);
 170 }
 171
 172 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 173 {
 174         int i;
 175
 176         kfree(drv->fw.dbg_dest_tlv);
 177         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
 178                 kfree(drv->fw.dbg_conf_tlv[i]);
 179         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
 180                 kfree(drv->fw.dbg_trigger_tlv[i]);
 181         kfree(drv->fw.dbg_mem_tlv);
 182
 183         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 184                 iwl_free_fw_img(drv, drv->fw.img + i);
 185 }
 186
 187 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 188                              struct fw_sec *sec)
 189 {
 190         void *data;
 191
 192         desc->data = NULL;
 193
 194         if (!sec || !sec->size)
 195                 return -EINVAL;
 196
 197         data = vmalloc(sec->size);
 198         if (!data)
 199                 return -ENOMEM;
 200
 201         desc->len = sec->size;
 202         desc->offset = sec->offset;
 203         memcpy(data, sec->data, desc->len);
 204         desc->data = data;
 205
 206         return 0;
 207 }
 208
 209 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 210                                 void *context);
 211
 212 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 213 {
 214         const struct iwl_cfg *cfg = drv->trans->cfg;
 215         char tag[8];
 216         const char *fw_pre_name;
 217
 218         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 219             CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP)
 220                 fw_pre_name = cfg->fw_name_pre_next_step;
 221         else if (drv->trans->cfg->integrated &&
 222                  CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP &&
 223                  cfg->fw_name_pre_rf_next_step)
 224                 fw_pre_name = cfg->fw_name_pre_rf_next_step;
 225         else
 226                 fw_pre_name = cfg->fw_name_pre;
 227
 228         if (first) {
 229                 drv->fw_index = cfg->ucode_api_max;
 230                 sprintf(tag, "%d", drv->fw_index);
 231         } else {
 232                 drv->fw_index--;
 233                 sprintf(tag, "%d", drv->fw_index);
 234         }
 235
 236         if (drv->fw_index < cfg->ucode_api_min) {
 237                 IWL_ERR(drv, "no suitable firmware found!\n");
 238
 239                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 240                         IWL_ERR(drv, "%s%d is required\n", fw_pre_name,
 241                                 cfg->ucode_api_max);
 242                 } else {
 243                         IWL_ERR(drv, "minimum version required: %s%d\n",
 244                                 fw_pre_name,
 245                                 cfg->ucode_api_min);
 246                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 247                                 fw_pre_name,
 248                                 cfg->ucode_api_max);
 249                 }
 250
 251                 IWL_ERR(drv,
 252                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 253                 return -ENOENT;
 254         }
 255
 256         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 257                  fw_pre_name, tag);
 258
 259         IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
 260                        drv->firmware_name);
 261
 262         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 263                                        drv->trans->dev,
 264                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 265 }
 266
 267 struct fw_img_parsing {
 268         struct fw_sec *sec;
 269         int sec_counter;
 270 };
 271
 272 /*
 273  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 274  */
 275 struct fw_sec_parsing {
 276         __le32 offset;
 277         const u8 data[];
 278 } __packed;
 279
 280 /**
 281  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 282  *
 283  * @ucode_type: the uCode to which the following default calib relates.
 284  * @calib: default calibrations.
 285  */
 286 struct iwl_tlv_calib_data {
 287         __le32 ucode_type;
 288         struct iwl_tlv_calib_ctrl calib;
 289 } __packed;
 290
 291 struct iwl_firmware_pieces {
 292         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 293
 294         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 295         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 296
 297         /* FW debug data parsed for driver usage */
 298         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 299         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 300         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 301         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 302         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 303         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 304         size_t n_dbg_mem_tlv;
 305 };
 306
 307 /*
 308  * These functions are just to extract uCode section data from the pieces
 309  * structure.
 310  */
 311 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 312                               enum iwl_ucode_type type,
 313                               int  sec)
 314 {
 315         return &pieces->img[type].sec[sec];
 316 }
 317
 318 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 319                            enum iwl_ucode_type type,
 320                            int sec)
 321 {
 322         struct fw_img_parsing *img = &pieces->img[type];
 323         struct fw_sec *sec_memory;
 324         int size = sec + 1;
 325         size_t alloc_size = sizeof(*img->sec) * size;
 326
 327         if (img->sec && img->sec_counter >= size)
 328                 return;
 329
 330         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 331         if (!sec_memory)
 332                 return;
 333
 334         img->sec = sec_memory;
 335         img->sec_counter = size;
 336 }
 337
 338 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 339                          enum iwl_ucode_type type,
 340                          int sec,
 341                          const void *data)
 342 {
 343         alloc_sec_data(pieces, type, sec);
 344
 345         pieces->img[type].sec[sec].data = data;
 346 }
 347
 348 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 349                          enum iwl_ucode_type type,
 350                          int sec,
 351                          size_t size)
 352 {
 353         alloc_sec_data(pieces, type, sec);
 354
 355         pieces->img[type].sec[sec].size = size;
 356 }
 357
 358 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 359                            enum iwl_ucode_type type,
 360                            int sec)
 361 {
 362         return pieces->img[type].sec[sec].size;
 363 }
 364
 365 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 366                            enum iwl_ucode_type type,
 367                            int sec,
 368                            u32 offset)
 369 {
 370         alloc_sec_data(pieces, type, sec);
 371
 372         pieces->img[type].sec[sec].offset = offset;
 373 }
 374
 375 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 376 {
 377         int i, j;
 378         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 379         struct iwl_fw_cipher_scheme *fwcs;
 380
 381         if (len < sizeof(*l) ||
 382             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 383                 return -EINVAL;
 384
 385         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 386                 fwcs = &l->cs[j];
 387
 388                 /* we skip schemes with zero cipher suite selector */
 389                 if (!fwcs->cipher)
 390                         continue;
 391
 392                 fw->cs[j++] = *fwcs;
 393         }
 394
 395         return 0;
 396 }
 397
 398 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 399                                  const u32 len)
 400 {
 401         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 402         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 403
 404         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 405         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 406         capa->max_ap_cache_per_scan =
 407                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 408         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 409         capa->max_scan_reporting_threshold =
 410                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 411         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 412         capa->max_significant_change_aps =
 413                 le32_to_cpu(fw_capa->max_significant_change_aps);
 414         capa->max_bssid_history_entries =
 415                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 416         capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
 417         capa->max_number_epno_networks =
 418                 le32_to_cpu(fw_capa->max_number_epno_networks);
 419         capa->max_number_epno_networks_by_ssid =
 420                 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
 421         capa->max_number_of_white_listed_ssid =
 422                 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
 423         capa->max_number_of_black_listed_ssid =
 424                 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
 425 }
 426
 427 /*
 428  * Gets uCode section from tlv.
 429  */
 430 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 431                                const void *data, enum iwl_ucode_type type,
 432                                int size)
 433 {
 434         struct fw_img_parsing *img;
 435         struct fw_sec *sec;
 436         struct fw_sec_parsing *sec_parse;
 437         size_t alloc_size;
 438
 439         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 440                 return -1;
 441
 442         sec_parse = (struct fw_sec_parsing *)data;
 443
 444         img = &pieces->img[type];
 445
 446         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 447         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 448         if (!sec)
 449                 return -ENOMEM;
 450         img->sec = sec;
 451
 452         sec = &img->sec[img->sec_counter];
 453
 454         sec->offset = le32_to_cpu(sec_parse->offset);
 455         sec->data = sec_parse->data;
 456         sec->size = size - sizeof(sec_parse->offset);
 457
 458         ++img->sec_counter;
 459
 460         return 0;
 461 }
 462
 463 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 464 {
 465         struct iwl_tlv_calib_data *def_calib =
 466                                         (struct iwl_tlv_calib_data *)data;
 467         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 468         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 469                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 470                         ucode_type);
 471                 return -EINVAL;
 472         }
 473         drv->fw.default_calib[ucode_type].flow_trigger =
 474                 def_calib->calib.flow_trigger;
 475         drv->fw.default_calib[ucode_type].event_trigger =
 476                 def_calib->calib.event_trigger;
 477
 478         return 0;
 479 }
 480
 481 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 482                                    struct iwl_ucode_capabilities *capa)
 483 {
 484         const struct iwl_ucode_api *ucode_api = (void *)data;
 485         u32 api_index = le32_to_cpu(ucode_api->api_index);
 486         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 487         int i;
 488
 489         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 490                 IWL_ERR(drv,
 491                         "api flags index %d larger than supported by driver\n",
 492                         api_index);
 493                 /* don't return an error so we can load FW that has more bits */
 494                 return 0;
 495         }
 496
 497         for (i = 0; i < 32; i++) {
 498                 if (api_flags & BIT(i))
 499                         __set_bit(i + 32 * api_index, capa->_api);
 500         }
 501
 502         return 0;
 503 }
 504
 505 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 506                                       struct iwl_ucode_capabilities *capa)
 507 {
 508         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 509         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 510         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 511         int i;
 512
 513         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 514                 IWL_ERR(drv,
 515                         "capa flags index %d larger than supported by driver\n",
 516                         api_index);
 517                 /* don't return an error so we can load FW that has more bits */
 518                 return 0;
 519         }
 520
 521         for (i = 0; i < 32; i++) {
 522                 if (api_flags & BIT(i))
 523                         __set_bit(i + 32 * api_index, capa->_capa);
 524         }
 525
 526         return 0;
 527 }
 528
 529 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 530                                     const struct firmware *ucode_raw,
 531                                     struct iwl_firmware_pieces *pieces)
 532 {
 533         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 534         u32 api_ver, hdr_size, build;
 535         char buildstr[25];
 536         const u8 *src;
 537
 538         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 539         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 540
 541         switch (api_ver) {
 542         default:
 543                 hdr_size = 28;
 544                 if (ucode_raw->size < hdr_size) {
 545                         IWL_ERR(drv, "File size too small!\n");
 546                         return -EINVAL;
 547                 }
 548                 build = le32_to_cpu(ucode->u.v2.build);
 549                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 550                              le32_to_cpu(ucode->u.v2.inst_size));
 551                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 552                              le32_to_cpu(ucode->u.v2.data_size));
 553                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 554                              le32_to_cpu(ucode->u.v2.init_size));
 555                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 556                              le32_to_cpu(ucode->u.v2.init_data_size));
 557                 src = ucode->u.v2.data;
 558                 break;
 559         case 0:
 560         case 1:
 561         case 2:
 562                 hdr_size = 24;
 563                 if (ucode_raw->size < hdr_size) {
 564                         IWL_ERR(drv, "File size too small!\n");
 565                         return -EINVAL;
 566                 }
 567                 build = 0;
 568                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 569                              le32_to_cpu(ucode->u.v1.inst_size));
 570                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 571                              le32_to_cpu(ucode->u.v1.data_size));
 572                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 573                              le32_to_cpu(ucode->u.v1.init_size));
 574                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 575                              le32_to_cpu(ucode->u.v1.init_data_size));
 576                 src = ucode->u.v1.data;
 577                 break;
 578         }
 579
 580         if (build)
 581                 sprintf(buildstr, " build %u", build);
 582         else
 583                 buildstr[0] = '\0';
 584
 585         snprintf(drv->fw.fw_version,
 586                  sizeof(drv->fw.fw_version),
 587                  "%u.%u.%u.%u%s",
 588                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 589                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 590                  IWL_UCODE_API(drv->fw.ucode_ver),
 591                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 592                  buildstr);
 593
 594         /* Verify size of file vs. image size info in file's header */
 595
 596         if (ucode_raw->size != hdr_size +
 597             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 598             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 599             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 600             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 601
 602                 IWL_ERR(drv,
 603                         "uCode file size %d does not match expected size\n",
 604                         (int)ucode_raw->size);
 605                 return -EINVAL;
 606         }
 607
 608
 609         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 610         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 611         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 612                        IWLAGN_RTC_INST_LOWER_BOUND);
 613         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 614         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 615         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 616                        IWLAGN_RTC_DATA_LOWER_BOUND);
 617         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 618         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 619         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 620                        IWLAGN_RTC_INST_LOWER_BOUND);
 621         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 622         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 623         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 624                        IWLAGN_RTC_DATA_LOWER_BOUND);
 625         return 0;
 626 }
 627
 628 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 629                                 const struct firmware *ucode_raw,
 630                                 struct iwl_firmware_pieces *pieces,
 631                                 struct iwl_ucode_capabilities *capa,
 632                                 bool *usniffer_images)
 633 {
 634         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 635         struct iwl_ucode_tlv *tlv;
 636         size_t len = ucode_raw->size;
 637         const u8 *data;
 638         u32 tlv_len;
 639         u32 usniffer_img;
 640         enum iwl_ucode_tlv_type tlv_type;
 641         const u8 *tlv_data;
 642         char buildstr[25];
 643         u32 build, paging_mem_size;
 644         int num_of_cpus;
 645         bool usniffer_req = false;
 646         bool gscan_capa = false;
 647
 648         if (len < sizeof(*ucode)) {
 649                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 650                 return -EINVAL;
 651         }
 652
 653         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 654                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 655                         le32_to_cpu(ucode->magic));
 656                 return -EINVAL;
 657         }
 658
 659         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 660         memcpy(drv->fw.human_readable, ucode->human_readable,
 661                sizeof(drv->fw.human_readable));
 662         build = le32_to_cpu(ucode->build);
 663
 664         if (build)
 665                 sprintf(buildstr, " build %u", build);
 666         else
 667                 buildstr[0] = '\0';
 668
 669         snprintf(drv->fw.fw_version,
 670                  sizeof(drv->fw.fw_version),
 671                  "%u.%u.%u.%u%s",
 672                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 673                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 674                  IWL_UCODE_API(drv->fw.ucode_ver),
 675                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 676                  buildstr);
 677
 678         data = ucode->data;
 679
 680         len -= sizeof(*ucode);
 681
 682         while (len >= sizeof(*tlv)) {
 683                 len -= sizeof(*tlv);
 684                 tlv = (void *)data;
 685
 686                 tlv_len = le32_to_cpu(tlv->length);
 687                 tlv_type = le32_to_cpu(tlv->type);
 688                 tlv_data = tlv->data;
 689
 690                 if (len < tlv_len) {
 691                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 692                                 len, tlv_len);
 693                         return -EINVAL;
 694                 }
 695                 len -= ALIGN(tlv_len, 4);
 696                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 697
 698                 switch (tlv_type) {
 699                 case IWL_UCODE_TLV_INST:
 700                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 701                                      IWL_UCODE_SECTION_INST, tlv_data);
 702                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 703                                      IWL_UCODE_SECTION_INST, tlv_len);
 704                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 705                                        IWL_UCODE_SECTION_INST,
 706                                        IWLAGN_RTC_INST_LOWER_BOUND);
 707                         break;
 708                 case IWL_UCODE_TLV_DATA:
 709                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 710                                      IWL_UCODE_SECTION_DATA, tlv_data);
 711                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 712                                      IWL_UCODE_SECTION_DATA, tlv_len);
 713                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 714                                        IWL_UCODE_SECTION_DATA,
 715                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 716                         break;
 717                 case IWL_UCODE_TLV_INIT:
 718                         set_sec_data(pieces, IWL_UCODE_INIT,
 719                                      IWL_UCODE_SECTION_INST, tlv_data);
 720                         set_sec_size(pieces, IWL_UCODE_INIT,
 721                                      IWL_UCODE_SECTION_INST, tlv_len);
 722                         set_sec_offset(pieces, IWL_UCODE_INIT,
 723                                        IWL_UCODE_SECTION_INST,
 724                                        IWLAGN_RTC_INST_LOWER_BOUND);
 725                         break;
 726                 case IWL_UCODE_TLV_INIT_DATA:
 727                         set_sec_data(pieces, IWL_UCODE_INIT,
 728                                      IWL_UCODE_SECTION_DATA, tlv_data);
 729                         set_sec_size(pieces, IWL_UCODE_INIT,
 730                                      IWL_UCODE_SECTION_DATA, tlv_len);
 731                         set_sec_offset(pieces, IWL_UCODE_INIT,
 732                                        IWL_UCODE_SECTION_DATA,
 733                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 734                         break;
 735                 case IWL_UCODE_TLV_BOOT:
 736                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 737                         break;
 738                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 739                         if (tlv_len != sizeof(u32))
 740                                 goto invalid_tlv_len;
 741                         capa->max_probe_length =
 742                                         le32_to_cpup((__le32 *)tlv_data);
 743                         break;
 744                 case IWL_UCODE_TLV_PAN:
 745                         if (tlv_len)
 746                                 goto invalid_tlv_len;
 747                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 748                         break;
 749                 case IWL_UCODE_TLV_FLAGS:
 750                         /* must be at least one u32 */
 751                         if (tlv_len < sizeof(u32))
 752                                 goto invalid_tlv_len;
 753                         /* and a proper number of u32s */
 754                         if (tlv_len % sizeof(u32))
 755                                 goto invalid_tlv_len;
 756                         /*
 757                          * This driver only reads the first u32 as
 758                          * right now no more features are defined,
 759                          * if that changes then either the driver
 760                          * will not work with the new firmware, or
 761                          * it'll not take advantage of new features.
 762                          */
 763                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 764                         break;
 765                 case IWL_UCODE_TLV_API_CHANGES_SET:
 766                         if (tlv_len != sizeof(struct iwl_ucode_api))
 767                                 goto invalid_tlv_len;
 768                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 769                                 goto tlv_error;
 770                         break;
 771                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 772                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 773                                 goto invalid_tlv_len;
 774                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 775                                 goto tlv_error;
 776                         break;
 777                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 778                         if (tlv_len != sizeof(u32))
 779                                 goto invalid_tlv_len;
 780                         pieces->init_evtlog_ptr =
 781                                         le32_to_cpup((__le32 *)tlv_data);
 782                         break;
 783                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 784                         if (tlv_len != sizeof(u32))
 785                                 goto invalid_tlv_len;
 786                         pieces->init_evtlog_size =
 787                                         le32_to_cpup((__le32 *)tlv_data);
 788                         break;
 789                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 790                         if (tlv_len != sizeof(u32))
 791                                 goto invalid_tlv_len;
 792                         pieces->init_errlog_ptr =
 793                                         le32_to_cpup((__le32 *)tlv_data);
 794                         break;
 795                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 796                         if (tlv_len != sizeof(u32))
 797                                 goto invalid_tlv_len;
 798                         pieces->inst_evtlog_ptr =
 799                                         le32_to_cpup((__le32 *)tlv_data);
 800                         break;
 801                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 802                         if (tlv_len != sizeof(u32))
 803                                 goto invalid_tlv_len;
 804                         pieces->inst_evtlog_size =
 805                                         le32_to_cpup((__le32 *)tlv_data);
 806                         break;
 807                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 808                         if (tlv_len != sizeof(u32))
 809                                 goto invalid_tlv_len;
 810                         pieces->inst_errlog_ptr =
 811                                         le32_to_cpup((__le32 *)tlv_data);
 812                         break;
 813                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 814                         if (tlv_len)
 815                                 goto invalid_tlv_len;
 816                         drv->fw.enhance_sensitivity_table = true;
 817                         break;
 818                 case IWL_UCODE_TLV_WOWLAN_INST:
 819                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 820                                      IWL_UCODE_SECTION_INST, tlv_data);
 821                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 822                                      IWL_UCODE_SECTION_INST, tlv_len);
 823                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 824                                        IWL_UCODE_SECTION_INST,
 825                                        IWLAGN_RTC_INST_LOWER_BOUND);
 826                         break;
 827                 case IWL_UCODE_TLV_WOWLAN_DATA:
 828                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 829                                      IWL_UCODE_SECTION_DATA, tlv_data);
 830                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 831                                      IWL_UCODE_SECTION_DATA, tlv_len);
 832                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 833                                        IWL_UCODE_SECTION_DATA,
 834                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 835                         break;
 836                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 837                         if (tlv_len != sizeof(u32))
 838                                 goto invalid_tlv_len;
 839                         capa->standard_phy_calibration_size =
 840                                         le32_to_cpup((__le32 *)tlv_data);
 841                         break;
 842                  case IWL_UCODE_TLV_SEC_RT:
 843                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 844                                             tlv_len);
 845                         drv->fw.type = IWL_FW_MVM;
 846                         break;
 847                 case IWL_UCODE_TLV_SEC_INIT:
 848                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 849                                             tlv_len);
 850                         drv->fw.type = IWL_FW_MVM;
 851                         break;
 852                 case IWL_UCODE_TLV_SEC_WOWLAN:
 853                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 854                                             tlv_len);
 855                         drv->fw.type = IWL_FW_MVM;
 856                         break;
 857                 case IWL_UCODE_TLV_DEF_CALIB:
 858                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 859                                 goto invalid_tlv_len;
 860                         if (iwl_set_default_calib(drv, tlv_data))
 861                                 goto tlv_error;
 862                         break;
 863                 case IWL_UCODE_TLV_PHY_SKU:
 864                         if (tlv_len != sizeof(u32))
 865                                 goto invalid_tlv_len;
 866                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 867                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 868                                                 FW_PHY_CFG_TX_CHAIN) >>
 869                                                 FW_PHY_CFG_TX_CHAIN_POS;
 870                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 871                                                 FW_PHY_CFG_RX_CHAIN) >>
 872                                                 FW_PHY_CFG_RX_CHAIN_POS;
 873                         break;
 874                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 875                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 876                                             tlv_len);
 877                         drv->fw.type = IWL_FW_MVM;
 878                         break;
 879                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 880                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 881                                             tlv_len);
 882                         drv->fw.type = IWL_FW_MVM;
 883                         break;
 884                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 885                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 886                                             tlv_len);
 887                         drv->fw.type = IWL_FW_MVM;
 888                         break;
 889                 case IWL_UCODE_TLV_NUM_OF_CPU:
 890                         if (tlv_len != sizeof(u32))
 891                                 goto invalid_tlv_len;
 892                         num_of_cpus =
 893                                 le32_to_cpup((__le32 *)tlv_data);
 894
 895                         if (num_of_cpus == 2) {
 896                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 897                                         true;
 898                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 899                                         true;
 900                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 901                                         true;
 902                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 903                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 904                                 return -EINVAL;
 905                         }
 906                         break;
 907                 case IWL_UCODE_TLV_CSCHEME:
 908                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 909                                 goto invalid_tlv_len;
 910                         break;
 911                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 912                         if (tlv_len != sizeof(u32))
 913                                 goto invalid_tlv_len;
 914                         capa->n_scan_channels =
 915                                 le32_to_cpup((__le32 *)tlv_data);
 916                         break;
 917                 case IWL_UCODE_TLV_FW_VERSION: {
 918                         __le32 *ptr = (void *)tlv_data;
 919                         u32 major, minor;
 920                         u8 local_comp;
 921
 922                         if (tlv_len != sizeof(u32) * 3)
 923                                 goto invalid_tlv_len;
 924
 925                         major = le32_to_cpup(ptr++);
 926                         minor = le32_to_cpup(ptr++);
 927                         local_comp = le32_to_cpup(ptr);
 928
 929                         snprintf(drv->fw.fw_version,
 930                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 931                                  major, minor, local_comp);
 932                         break;
 933                         }
 934                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 935                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 936
 937                         if (pieces->dbg_dest_tlv) {
 938                                 IWL_ERR(drv,
 939                                         "dbg destination ignored, already exists\n");
 940                                 break;
 941                         }
 942
 943                         pieces->dbg_dest_tlv = dest;
 944                         IWL_INFO(drv, "Found debug destination: %s\n",
 945                                  get_fw_dbg_mode_string(dest->monitor_mode));
 946
 947                         drv->fw.dbg_dest_reg_num =
 948                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 949                                                    reg_ops);
 950                         drv->fw.dbg_dest_reg_num /=
 951                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 952
 953                         break;
 954                         }
 955                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 956                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 957
 958                         if (!pieces->dbg_dest_tlv) {
 959                                 IWL_ERR(drv,
 960                                         "Ignore dbg config %d - no destination configured\n",
 961                                         conf->id);
 962                                 break;
 963                         }
 964
 965                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 966                                 IWL_ERR(drv,
 967                                         "Skip unknown configuration: %d\n",
 968                                         conf->id);
 969                                 break;
 970                         }
 971
 972                         if (pieces->dbg_conf_tlv[conf->id]) {
 973                                 IWL_ERR(drv,
 974                                         "Ignore duplicate dbg config %d\n",
 975                                         conf->id);
 976                                 break;
 977                         }
 978
 979                         if (conf->usniffer)
 980                                 usniffer_req = true;
 981
 982                         IWL_INFO(drv, "Found debug configuration: %d\n",
 983                                  conf->id);
 984
 985                         pieces->dbg_conf_tlv[conf->id] = conf;
 986                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 987                         break;
 988                         }
 989                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 990                         struct iwl_fw_dbg_trigger_tlv *trigger =
 991                                 (void *)tlv_data;
 992                         u32 trigger_id = le32_to_cpu(trigger->id);
 993
 994                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 995                                 IWL_ERR(drv,
 996                                         "Skip unknown trigger: %u\n",
 997                                         trigger->id);
 998                                 break;
 999                         }
1000
1001                         if (pieces->dbg_trigger_tlv[trigger_id]) {
1002                                 IWL_ERR(drv,
1003                                         "Ignore duplicate dbg trigger %u\n",
1004                                         trigger->id);
1005                                 break;
1006                         }
1007
1008                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1009
1010                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1011                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1012                         break;
1013                         }
1014                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1015                         *usniffer_images = true;
1016                         iwl_store_ucode_sec(pieces, tlv_data,
1017                                             IWL_UCODE_REGULAR_USNIFFER,
1018                                             tlv_len);
1019                         break;
1020                 case IWL_UCODE_TLV_PAGING:
1021                         if (tlv_len != sizeof(u32))
1022                                 goto invalid_tlv_len;
1023                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1024
1025                         IWL_DEBUG_FW(drv,
1026                                      "Paging: paging enabled (size = %u bytes)\n",
1027                                      paging_mem_size);
1028
1029                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1030                                 IWL_ERR(drv,
1031                                         "Paging: driver supports up to %lu bytes for paging image\n",
1032                                         MAX_PAGING_IMAGE_SIZE);
1033                                 return -EINVAL;
1034                         }
1035
1036                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1037                                 IWL_ERR(drv,
1038                                         "Paging: image isn't multiple %lu\n",
1039                                         FW_PAGING_SIZE);
1040                                 return -EINVAL;
1041                         }
1042
1043                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1044                                 paging_mem_size;
1045                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1046                         drv->fw.img[usniffer_img].paging_mem_size =
1047                                 paging_mem_size;
1048                         break;
1049                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1050                         if (tlv_len != sizeof(u32))
1051                                 goto invalid_tlv_len;
1052                         drv->fw.sdio_adma_addr =
1053                                 le32_to_cpup((__le32 *)tlv_data);
1054                         break;
1055                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1056                         /*
1057                          * Don't return an error in case of a shorter tlv_len
1058                          * to enable loading of FW that has an old format
1059                          * of GSCAN capabilities TLV.
1060                          */
1061                         if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1062                                 break;
1063
1064                         iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1065                         gscan_capa = true;
1066                         break;
1067                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1068                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1069                                 (void *)tlv_data;
1070                         u32 type;
1071                         size_t size;
1072                         struct iwl_fw_dbg_mem_seg_tlv *n;
1073
1074                         if (tlv_len != (sizeof(*dbg_mem)))
1075                                 goto invalid_tlv_len;
1076
1077                         type = le32_to_cpu(dbg_mem->data_type);
1078
1079                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1080                                        dbg_mem->data_type);
1081
1082                         switch (type & FW_DBG_MEM_TYPE_MASK) {
1083                         case FW_DBG_MEM_TYPE_REGULAR:
1084                         case FW_DBG_MEM_TYPE_PRPH:
1085                                 /* we know how to handle these */
1086                                 break;
1087                         default:
1088                                 IWL_ERR(drv,
1089                                         "Found debug memory segment with invalid type: 0x%x\n",
1090                                         type);
1091                                 return -EINVAL;
1092                         }
1093
1094                         size = sizeof(*pieces->dbg_mem_tlv) *
1095                                (pieces->n_dbg_mem_tlv + 1);
1096                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1097                         if (!n)
1098                                 return -ENOMEM;
1099                         pieces->dbg_mem_tlv = n;
1100                         pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem;
1101                         pieces->n_dbg_mem_tlv++;
1102                         break;
1103                         }
1104                 default:
1105                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1106                         break;
1107                 }
1108         }
1109
1110         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1111             usniffer_req && !*usniffer_images) {
1112                 IWL_ERR(drv,
1113                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1114                 return -EINVAL;
1115         }
1116
1117         if (len) {
1118                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1119                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1120                 return -EINVAL;
1121         }
1122
1123         /*
1124          * If ucode advertises that it supports GSCAN but GSCAN
1125          * capabilities TLV is not present, or if it has an old format,
1126          * warn and continue without GSCAN.
1127          */
1128         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1129             !gscan_capa) {
1130                 IWL_DEBUG_INFO(drv,
1131                                "GSCAN is supported but capabilities TLV is unavailable\n");
1132                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1133                             capa->_capa);
1134         }
1135
1136         return 0;
1137
1138  invalid_tlv_len:
1139         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1140  tlv_error:
1141         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1142
1143         return -EINVAL;
1144 }
1145
1146 static int iwl_alloc_ucode(struct iwl_drv *drv,
1147                            struct iwl_firmware_pieces *pieces,
1148                            enum iwl_ucode_type type)
1149 {
1150         int i;
1151         struct fw_desc *sec;
1152
1153         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1154         if (!sec)
1155                 return -ENOMEM;
1156         drv->fw.img[type].sec = sec;
1157         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1158
1159         for (i = 0; i < pieces->img[type].sec_counter; i++)
1160                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1161                         return -ENOMEM;
1162
1163         return 0;
1164 }
1165
1166 static int validate_sec_sizes(struct iwl_drv *drv,
1167                               struct iwl_firmware_pieces *pieces,
1168                               const struct iwl_cfg *cfg)
1169 {
1170         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1171                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1172                              IWL_UCODE_SECTION_INST));
1173         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1174                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1175                              IWL_UCODE_SECTION_DATA));
1176         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1177                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1178         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1179                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1180
1181         /* Verify that uCode images will fit in card's SRAM. */
1182         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1183             cfg->max_inst_size) {
1184                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1185                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1186                                      IWL_UCODE_SECTION_INST));
1187                 return -1;
1188         }
1189
1190         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1191             cfg->max_data_size) {
1192                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1193                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1194                                      IWL_UCODE_SECTION_DATA));
1195                 return -1;
1196         }
1197
1198         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1199              cfg->max_inst_size) {
1200                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1201                         get_sec_size(pieces, IWL_UCODE_INIT,
1202                                      IWL_UCODE_SECTION_INST));
1203                 return -1;
1204         }
1205
1206         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1207             cfg->max_data_size) {
1208                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1209                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1210                                      IWL_UCODE_SECTION_DATA));
1211                 return -1;
1212         }
1213         return 0;
1214 }
1215
1216 static struct iwl_op_mode *
1217 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1218 {
1219         const struct iwl_op_mode_ops *ops = op->ops;
1220         struct dentry *dbgfs_dir = NULL;
1221         struct iwl_op_mode *op_mode = NULL;
1222
1223 #ifdef CONFIG_IWLWIFI_DEBUGFS
1224         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1225                                                 drv->dbgfs_drv);
1226         if (!drv->dbgfs_op_mode) {
1227                 IWL_ERR(drv,
1228                         "failed to create opmode debugfs directory\n");
1229                 return op_mode;
1230         }
1231         dbgfs_dir = drv->dbgfs_op_mode;
1232 #endif
1233
1234         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1235
1236 #ifdef CONFIG_IWLWIFI_DEBUGFS
1237         if (!op_mode) {
1238                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1239                 drv->dbgfs_op_mode = NULL;
1240         }
1241 #endif
1242
1243         return op_mode;
1244 }
1245
1246 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1247 {
1248         /* op_mode can be NULL if its start failed */
1249         if (drv->op_mode) {
1250                 iwl_op_mode_stop(drv->op_mode);
1251                 drv->op_mode = NULL;
1252
1253 #ifdef CONFIG_IWLWIFI_DEBUGFS
1254                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1255                 drv->dbgfs_op_mode = NULL;
1256 #endif
1257         }
1258 }
1259
1260 /**
1261  * iwl_req_fw_callback - callback when firmware was loaded
1262  *
1263  * If loaded successfully, copies the firmware into buffers
1264  * for the card to fetch (via DMA).
1265  */
1266 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1267 {
1268         struct iwl_drv *drv = context;
1269         struct iwl_fw *fw = &drv->fw;
1270         struct iwl_ucode_header *ucode;
1271         struct iwlwifi_opmode_table *op;
1272         int err;
1273         struct iwl_firmware_pieces *pieces;
1274         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1275         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1276         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1277         u32 api_ver;
1278         int i;
1279         bool load_module = false;
1280         bool usniffer_images = false;
1281
1282         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1283         fw->ucode_capa.standard_phy_calibration_size =
1284                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1285         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1286
1287         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1288         if (!pieces)
1289                 goto out_free_fw;
1290
1291         if (!ucode_raw)
1292                 goto try_again;
1293
1294         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1295                        drv->firmware_name, ucode_raw->size);
1296
1297         /* Make sure that we got at least the API version number */
1298         if (ucode_raw->size < 4) {
1299                 IWL_ERR(drv, "File size way too small!\n");
1300                 goto try_again;
1301         }
1302
1303         /* Data from ucode file:  header followed by uCode images */
1304         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1305
1306         if (ucode->ver)
1307                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1308         else
1309                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1310                                              &fw->ucode_capa, &usniffer_images);
1311
1312         if (err)
1313                 goto try_again;
1314
1315         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1316                 api_ver = drv->fw.ucode_ver;
1317         else
1318                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1319
1320         /*
1321          * api_ver should match the api version forming part of the
1322          * firmware filename ... but we don't check for that and only rely
1323          * on the API version read from firmware header from here on forward
1324          */
1325         if (api_ver < api_min || api_ver > api_max) {
1326                 IWL_ERR(drv,
1327                         "Driver unable to support your firmware API. "
1328                         "Driver supports v%u, firmware is v%u.\n",
1329                         api_max, api_ver);
1330                 goto try_again;
1331         }
1332
1333         /*
1334          * In mvm uCode there is no difference between data and instructions
1335          * sections.
1336          */
1337         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1338                                                          drv->trans->cfg))
1339                 goto try_again;
1340
1341         /* Allocate ucode buffers for card's bus-master loading ... */
1342
1343         /* Runtime instructions and 2 copies of data:
1344          * 1) unmodified from disk
1345          * 2) backup cache for save/restore during power-downs */
1346         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1347                 if (iwl_alloc_ucode(drv, pieces, i))
1348                         goto out_free_fw;
1349
1350         if (pieces->dbg_dest_tlv) {
1351                 drv->fw.dbg_dest_tlv =
1352                         kmemdup(pieces->dbg_dest_tlv,
1353                                 sizeof(*pieces->dbg_dest_tlv) +
1354                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1355                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1356
1357                 if (!drv->fw.dbg_dest_tlv)
1358                         goto out_free_fw;
1359         }
1360
1361         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1362                 if (pieces->dbg_conf_tlv[i]) {
1363                         drv->fw.dbg_conf_tlv_len[i] =
1364                                 pieces->dbg_conf_tlv_len[i];
1365                         drv->fw.dbg_conf_tlv[i] =
1366                                 kmemdup(pieces->dbg_conf_tlv[i],
1367                                         drv->fw.dbg_conf_tlv_len[i],
1368                                         GFP_KERNEL);
1369                         if (!drv->fw.dbg_conf_tlv[i])
1370                                 goto out_free_fw;
1371                 }
1372         }
1373
1374         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1375
1376         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1377                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1378         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1379         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1380                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1381         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1382                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1383         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1384                 sizeof(struct iwl_fw_dbg_trigger_stats);
1385         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1386                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1387         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1388                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1389         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1390                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1391         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1392                 sizeof(struct iwl_fw_dbg_trigger_ba);
1393         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1394                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1395
1396         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1397                 if (pieces->dbg_trigger_tlv[i]) {
1398                         /*
1399                          * If the trigger isn't long enough, WARN and exit.
1400                          * Someone is trying to debug something and he won't
1401                          * be able to catch the bug he is trying to chase.
1402                          * We'd better be noisy to be sure he knows what's
1403                          * going on.
1404                          */
1405                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1406                                     (trigger_tlv_sz[i] +
1407                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1408                                 goto out_free_fw;
1409                         drv->fw.dbg_trigger_tlv_len[i] =
1410                                 pieces->dbg_trigger_tlv_len[i];
1411                         drv->fw.dbg_trigger_tlv[i] =
1412                                 kmemdup(pieces->dbg_trigger_tlv[i],
1413                                         drv->fw.dbg_trigger_tlv_len[i],
1414                                         GFP_KERNEL);
1415                         if (!drv->fw.dbg_trigger_tlv[i])
1416                                 goto out_free_fw;
1417                 }
1418         }
1419
1420         /* Now that we can no longer fail, copy information */
1421
1422         drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv;
1423         pieces->dbg_mem_tlv = NULL;
1424         drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv;
1425
1426         /*
1427          * The (size - 16) / 12 formula is based on the information recorded
1428          * for each event, which is of mode 1 (including timestamp) for all
1429          * new microcodes that include this information.
1430          */
1431         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1432         if (pieces->init_evtlog_size)
1433                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1434         else
1435                 fw->init_evtlog_size =
1436                         drv->trans->cfg->base_params->max_event_log_size;
1437         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1438         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1439         if (pieces->inst_evtlog_size)
1440                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1441         else
1442                 fw->inst_evtlog_size =
1443                         drv->trans->cfg->base_params->max_event_log_size;
1444         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1445
1446         /*
1447          * figure out the offset of chain noise reset and gain commands
1448          * base on the size of standard phy calibration commands table size
1449          */
1450         if (fw->ucode_capa.standard_phy_calibration_size >
1451             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1452                 fw->ucode_capa.standard_phy_calibration_size =
1453                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1454
1455         /* We have our copies now, allow OS release its copies */
1456         release_firmware(ucode_raw);
1457
1458         mutex_lock(&iwlwifi_opmode_table_mtx);
1459         switch (fw->type) {
1460         case IWL_FW_DVM:
1461                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1462                 break;
1463         default:
1464                 WARN(1, "Invalid fw type %d\n", fw->type);
1465         case IWL_FW_MVM:
1466                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1467                 break;
1468         }
1469
1470         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1471                  drv->fw.fw_version, op->name);
1472
1473         /* add this device to the list of devices using this op_mode */
1474         list_add_tail(&drv->list, &op->drv);
1475
1476         if (op->ops) {
1477                 drv->op_mode = _iwl_op_mode_start(drv, op);
1478
1479                 if (!drv->op_mode) {
1480                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1481                         goto out_unbind;
1482                 }
1483         } else {
1484                 load_module = true;
1485         }
1486         mutex_unlock(&iwlwifi_opmode_table_mtx);
1487
1488         /*
1489          * Complete the firmware request last so that
1490          * a driver unbind (stop) doesn't run while we
1491          * are doing the start() above.
1492          */
1493         complete(&drv->request_firmware_complete);
1494
1495         /*
1496          * Load the module last so we don't block anything
1497          * else from proceeding if the module fails to load
1498          * or hangs loading.
1499          */
1500         if (load_module) {
1501                 request_module("%s", op->name);
1502 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1503                 if (err)
1504                         IWL_ERR(drv,
1505                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1506                                 op->name, err);
1507 #endif
1508         }
1509         goto free;
1510
1511  try_again:
1512         /* try next, if any */
1513         release_firmware(ucode_raw);
1514         if (iwl_request_firmware(drv, false))
1515                 goto out_unbind;
1516         goto free;
1517
1518  out_free_fw:
1519         iwl_dealloc_ucode(drv);
1520         release_firmware(ucode_raw);
1521  out_unbind:
1522         complete(&drv->request_firmware_complete);
1523         device_release_driver(drv->trans->dev);
1524  free:
1525         if (pieces) {
1526                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1527                         kfree(pieces->img[i].sec);
1528                 kfree(pieces->dbg_mem_tlv);
1529                 kfree(pieces);
1530         }
1531 }
1532
1533 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1534 {
1535         struct iwl_drv *drv;
1536         int ret;
1537
1538         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1539         if (!drv) {
1540                 ret = -ENOMEM;
1541                 goto err;
1542         }
1543
1544         drv->trans = trans;
1545         drv->dev = trans->dev;
1546
1547         init_completion(&drv->request_firmware_complete);
1548         INIT_LIST_HEAD(&drv->list);
1549
1550 #ifdef CONFIG_IWLWIFI_DEBUGFS
1551         /* Create the device debugfs entries. */
1552         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1553                                             iwl_dbgfs_root);
1554
1555         if (!drv->dbgfs_drv) {
1556                 IWL_ERR(drv, "failed to create debugfs directory\n");
1557                 ret = -ENOMEM;
1558                 goto err_free_drv;
1559         }
1560
1561         /* Create transport layer debugfs dir */
1562         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1563
1564         if (!drv->trans->dbgfs_dir) {
1565                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1566                 ret = -ENOMEM;
1567                 goto err_free_dbgfs;
1568         }
1569 #endif
1570
1571         ret = iwl_request_firmware(drv, true);
1572         if (ret) {
1573                 IWL_ERR(trans, "Couldn't request the fw\n");
1574                 goto err_fw;
1575         }
1576
1577         return drv;
1578
1579 err_fw:
1580 #ifdef CONFIG_IWLWIFI_DEBUGFS
1581 err_free_dbgfs:
1582         debugfs_remove_recursive(drv->dbgfs_drv);
1583 err_free_drv:
1584 #endif
1585         kfree(drv);
1586 err:
1587         return ERR_PTR(ret);
1588 }
1589
1590 void iwl_drv_stop(struct iwl_drv *drv)
1591 {
1592         wait_for_completion(&drv->request_firmware_complete);
1593
1594         _iwl_op_mode_stop(drv);
1595
1596         iwl_dealloc_ucode(drv);
1597
1598         mutex_lock(&iwlwifi_opmode_table_mtx);
1599         /*
1600          * List is empty (this item wasn't added)
1601          * when firmware loading failed -- in that
1602          * case we can't remove it from any list.
1603          */
1604         if (!list_empty(&drv->list))
1605                 list_del(&drv->list);
1606         mutex_unlock(&iwlwifi_opmode_table_mtx);
1607
1608 #ifdef CONFIG_IWLWIFI_DEBUGFS
1609         debugfs_remove_recursive(drv->dbgfs_drv);
1610 #endif
1611
1612         kfree(drv);
1613 }
1614
1615
1616 /* shared module parameters */
1617 struct iwl_mod_params iwlwifi_mod_params = {
1618         .fw_restart = true,
1619         .bt_coex_active = true,
1620         .power_level = IWL_POWER_INDEX_1,
1621         .d0i3_disable = true,
1622         .d0i3_timeout = 1000,
1623         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1624         /* the rest are 0 by default */
1625 };
1626 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1627
1628 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1629 {
1630         int i;
1631         struct iwl_drv *drv;
1632         struct iwlwifi_opmode_table *op;
1633
1634         mutex_lock(&iwlwifi_opmode_table_mtx);
1635         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1636                 op = &iwlwifi_opmode_table[i];
1637                 if (strcmp(op->name, name))
1638                         continue;
1639                 op->ops = ops;
1640                 /* TODO: need to handle exceptional case */
1641                 list_for_each_entry(drv, &op->drv, list)
1642                         drv->op_mode = _iwl_op_mode_start(drv, op);
1643
1644                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1645                 return 0;
1646         }
1647         mutex_unlock(&iwlwifi_opmode_table_mtx);
1648         return -EIO;
1649 }
1650 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1651
1652 void iwl_opmode_deregister(const char *name)
1653 {
1654         int i;
1655         struct iwl_drv *drv;
1656
1657         mutex_lock(&iwlwifi_opmode_table_mtx);
1658         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1659                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1660                         continue;
1661                 iwlwifi_opmode_table[i].ops = NULL;
1662
1663                 /* call the stop routine for all devices */
1664                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1665                         _iwl_op_mode_stop(drv);
1666
1667                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1668                 return;
1669         }
1670         mutex_unlock(&iwlwifi_opmode_table_mtx);
1671 }
1672 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1673
1674 static int __init iwl_drv_init(void)
1675 {
1676         int i;
1677
1678         mutex_init(&iwlwifi_opmode_table_mtx);
1679
1680         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1681                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1682
1683         pr_info(DRV_DESCRIPTION "\n");
1684         pr_info(DRV_COPYRIGHT "\n");
1685
1686 #ifdef CONFIG_IWLWIFI_DEBUGFS
1687         /* Create the root of iwlwifi debugfs subsystem. */
1688         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1689
1690         if (!iwl_dbgfs_root)
1691                 return -EFAULT;
1692 #endif
1693
1694         return iwl_pci_register_driver();
1695 }
1696 module_init(iwl_drv_init);
1697
1698 static void __exit iwl_drv_exit(void)
1699 {
1700         iwl_pci_unregister_driver();
1701
1702 #ifdef CONFIG_IWLWIFI_DEBUGFS
1703         debugfs_remove_recursive(iwl_dbgfs_root);
1704 #endif
1705 }
1706 module_exit(iwl_drv_exit);
1707
1708 #ifdef CONFIG_IWLWIFI_DEBUG
1709 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1710                    S_IRUGO | S_IWUSR);
1711 MODULE_PARM_DESC(debug, "debug output mask");
1712 #endif
1713
1714 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, S_IRUGO);
1715 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1716 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1717 MODULE_PARM_DESC(11n_disable,
1718         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1719 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1720                    int, S_IRUGO);
1721 MODULE_PARM_DESC(amsdu_size,
1722                  "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)");
1723 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, S_IRUGO);
1724 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1725
1726 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
1727                    int, S_IRUGO);
1728 MODULE_PARM_DESC(antenna_coupling,
1729                  "specify antenna coupling in dB (default: 0 dB)");
1730
1731 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1732 MODULE_PARM_DESC(nvm_file, "NVM file name");
1733
1734 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1735                    bool, S_IRUGO);
1736 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1737
1738 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1739                    bool, S_IRUGO);
1740 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1741
1742 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1743                    uint, S_IRUGO | S_IWUSR);
1744 MODULE_PARM_DESC(uapsd_disable,
1745                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1746
1747 /*
1748  * set bt_coex_active to true, uCode will do kill/defer
1749  * every time the priority line is asserted (BT is sending signals on the
1750  * priority line in the PCIx).
1751  * set bt_coex_active to false, uCode will ignore the BT activity and
1752  * perform the normal operation
1753  *
1754  * User might experience transmit issue on some platform due to WiFi/BT
1755  * co-exist problem. The possible behaviors are:
1756  *   Able to scan and finding all the available AP
1757  *   Not able to associate with any AP
1758  * On those platforms, WiFi communication can be restored by set
1759  * "bt_coex_active" module parameter to "false"
1760  *
1761  * default: bt_coex_active = true (BT_COEX_ENABLE)
1762  */
1763 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1764                 bool, S_IRUGO);
1765 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1766
1767 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1768 MODULE_PARM_DESC(led_mode, "0=system default, "
1769                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1770
1771 module_param_named(power_save, iwlwifi_mod_params.power_save,
1772                 bool, S_IRUGO);
1773 MODULE_PARM_DESC(power_save,
1774                  "enable WiFi power management (default: disable)");
1775
1776 module_param_named(power_level, iwlwifi_mod_params.power_level,
1777                 int, S_IRUGO);
1778 MODULE_PARM_DESC(power_level,
1779                  "default power save level (range from 1 - 5, default: 1)");
1780
1781 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1782 MODULE_PARM_DESC(fw_monitor,
1783                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1784
1785 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout,
1786                    uint, S_IRUGO);
1787 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1788
1789 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1790                    S_IRUGO);
1791 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");