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        Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016        Intel Deutschland GmbH
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  *  * Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *  * Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in
  48  *    the documentation and/or other materials provided with the
  49  *    distribution.
  50  *  * Neither the name Intel Corporation nor the names of its
  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/completion.h>
  68 #include <linux/dma-mapping.h>
  69 #include <linux/firmware.h>
  70 #include <linux/module.h>
  71 #include <linux/vmalloc.h>
  72
  73 #include "iwl-drv.h"
  74 #include "iwl-csr.h"
  75 #include "iwl-debug.h"
  76 #include "iwl-trans.h"
  77 #include "iwl-op-mode.h"
  78 #include "iwl-agn-hw.h"
  79 #include "iwl-fw.h"
  80 #include "iwl-config.h"
  81 #include "iwl-modparams.h"
  82
  83 /******************************************************************************
  84  *
  85  * module boiler plate
  86  *
  87  ******************************************************************************/
  88
  89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  92 MODULE_LICENSE("GPL");
  93
  94 #ifdef CONFIG_IWLWIFI_DEBUGFS
  95 static struct dentry *iwl_dbgfs_root;
  96 #endif
  97
  98 /**
  99  * struct iwl_drv - drv common data
 100  * @list: list of drv structures using this opmode
 101  * @fw: the iwl_fw structure
 102  * @op_mode: the running op_mode
 103  * @trans: transport layer
 104  * @dev: for debug prints only
 105  * @cfg: configuration struct
 106  * @fw_index: firmware revision to try loading
 107  * @firmware_name: composite filename of ucode file to load
 108  * @request_firmware_complete: the firmware has been obtained from user space
 109  */
 110 struct iwl_drv {
 111         struct list_head list;
 112         struct iwl_fw fw;
 113
 114         struct iwl_op_mode *op_mode;
 115         struct iwl_trans *trans;
 116         struct device *dev;
 117         const struct iwl_cfg *cfg;
 118
 119         int fw_index;                   /* firmware we're trying to load */
 120         char firmware_name[32];         /* name of firmware file to load */
 121
 122         struct completion request_firmware_complete;
 123
 124 #ifdef CONFIG_IWLWIFI_DEBUGFS
 125         struct dentry *dbgfs_drv;
 126         struct dentry *dbgfs_trans;
 127         struct dentry *dbgfs_op_mode;
 128 #endif
 129 };
 130
 131 enum {
 132         DVM_OP_MODE =   0,
 133         MVM_OP_MODE =   1,
 134 };
 135
 136 /* Protects the table contents, i.e. the ops pointer & drv list */
 137 static struct mutex iwlwifi_opmode_table_mtx;
 138 static struct iwlwifi_opmode_table {
 139         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 140         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 141         struct list_head drv;           /* list of devices using this op_mode */
 142 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 143         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 144         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 145 };
 146
 147 #define IWL_DEFAULT_SCAN_CHANNELS 40
 148
 149 /*
 150  * struct fw_sec: Just for the image parsing process.
 151  * For the fw storage we are using struct fw_desc.
 152  */
 153 struct fw_sec {
 154         const void *data;               /* the sec data */
 155         size_t size;                    /* section size */
 156         u32 offset;                     /* offset of writing in the device */
 157 };
 158
 159 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 160 {
 161         vfree(desc->data);
 162         desc->data = NULL;
 163         desc->len = 0;
 164 }
 165
 166 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 167 {
 168         int i;
 169         for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
 170                 iwl_free_fw_desc(drv, &img->sec[i]);
 171 }
 172
 173 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 174 {
 175         int i;
 176
 177         kfree(drv->fw.dbg_dest_tlv);
 178         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
 179                 kfree(drv->fw.dbg_conf_tlv[i]);
 180         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
 181                 kfree(drv->fw.dbg_trigger_tlv[i]);
 182
 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 #define UCODE_EXPERIMENTAL_INDEX        100
 213 #define UCODE_EXPERIMENTAL_TAG          "exp"
 214
 215 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 216 {
 217         const char *name_pre = drv->cfg->fw_name_pre;
 218         char tag[8];
 219
 220         if (first) {
 221 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
 222                 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
 223                 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
 224         } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
 225 #endif
 226                 drv->fw_index = drv->cfg->ucode_api_max;
 227                 sprintf(tag, "%d", drv->fw_index);
 228         } else {
 229                 drv->fw_index--;
 230                 sprintf(tag, "%d", drv->fw_index);
 231         }
 232
 233         if (drv->fw_index < drv->cfg->ucode_api_min) {
 234                 IWL_ERR(drv, "no suitable firmware found!\n");
 235                 return -ENOENT;
 236         }
 237
 238         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 239                  name_pre, tag);
 240
 241         /*
 242          * Starting 8000B - FW name format has changed. This overwrites the
 243          * previous name and uses the new format.
 244          */
 245         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
 246                 char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev);
 247
 248                 if (rev_step != 'A')
 249                         snprintf(drv->firmware_name,
 250                                  sizeof(drv->firmware_name), "%s%c-%s.ucode",
 251                                  name_pre, rev_step, tag);
 252         }
 253
 254         IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
 255                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 256                                 ? "EXPERIMENTAL " : "",
 257                        drv->firmware_name);
 258
 259         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 260                                        drv->trans->dev,
 261                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 262 }
 263
 264 struct fw_img_parsing {
 265         struct fw_sec sec[IWL_UCODE_SECTION_MAX];
 266         int sec_counter;
 267 };
 268
 269 /*
 270  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 271  */
 272 struct fw_sec_parsing {
 273         __le32 offset;
 274         const u8 data[];
 275 } __packed;
 276
 277 /**
 278  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 279  *
 280  * @ucode_type: the uCode to which the following default calib relates.
 281  * @calib: default calibrations.
 282  */
 283 struct iwl_tlv_calib_data {
 284         __le32 ucode_type;
 285         struct iwl_tlv_calib_ctrl calib;
 286 } __packed;
 287
 288 struct iwl_firmware_pieces {
 289         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 290
 291         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 292         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 293
 294         /* FW debug data parsed for driver usage */
 295         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 296         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 297         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 298         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 299         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 300 };
 301
 302 /*
 303  * These functions are just to extract uCode section data from the pieces
 304  * structure.
 305  */
 306 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 307                               enum iwl_ucode_type type,
 308                               int  sec)
 309 {
 310         return &pieces->img[type].sec[sec];
 311 }
 312
 313 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 314                          enum iwl_ucode_type type,
 315                          int sec,
 316                          const void *data)
 317 {
 318         pieces->img[type].sec[sec].data = data;
 319 }
 320
 321 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 322                          enum iwl_ucode_type type,
 323                          int sec,
 324                          size_t size)
 325 {
 326         pieces->img[type].sec[sec].size = size;
 327 }
 328
 329 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 330                            enum iwl_ucode_type type,
 331                            int sec)
 332 {
 333         return pieces->img[type].sec[sec].size;
 334 }
 335
 336 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 337                            enum iwl_ucode_type type,
 338                            int sec,
 339                            u32 offset)
 340 {
 341         pieces->img[type].sec[sec].offset = offset;
 342 }
 343
 344 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 345 {
 346         int i, j;
 347         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 348         struct iwl_fw_cipher_scheme *fwcs;
 349         struct ieee80211_cipher_scheme *cs;
 350         u32 cipher;
 351
 352         if (len < sizeof(*l) ||
 353             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 354                 return -EINVAL;
 355
 356         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 357                 fwcs = &l->cs[j];
 358                 cipher = le32_to_cpu(fwcs->cipher);
 359
 360                 /* we skip schemes with zero cipher suite selector */
 361                 if (!cipher)
 362                         continue;
 363
 364                 cs = &fw->cs[j++];
 365                 cs->cipher = cipher;
 366                 cs->iftype = BIT(NL80211_IFTYPE_STATION);
 367                 cs->hdr_len = fwcs->hdr_len;
 368                 cs->pn_len = fwcs->pn_len;
 369                 cs->pn_off = fwcs->pn_off;
 370                 cs->key_idx_off = fwcs->key_idx_off;
 371                 cs->key_idx_mask = fwcs->key_idx_mask;
 372                 cs->key_idx_shift = fwcs->key_idx_shift;
 373                 cs->mic_len = fwcs->mic_len;
 374         }
 375
 376         return 0;
 377 }
 378
 379 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 380                                  const u32 len)
 381 {
 382         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 383         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 384
 385         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 386         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 387         capa->max_ap_cache_per_scan =
 388                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 389         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 390         capa->max_scan_reporting_threshold =
 391                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 392         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 393         capa->max_significant_change_aps =
 394                 le32_to_cpu(fw_capa->max_significant_change_aps);
 395         capa->max_bssid_history_entries =
 396                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 397         capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
 398         capa->max_number_epno_networks =
 399                 le32_to_cpu(fw_capa->max_number_epno_networks);
 400         capa->max_number_epno_networks_by_ssid =
 401                 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
 402         capa->max_number_of_white_listed_ssid =
 403                 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
 404         capa->max_number_of_black_listed_ssid =
 405                 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
 406 }
 407
 408 /*
 409  * Gets uCode section from tlv.
 410  */
 411 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 412                                const void *data, enum iwl_ucode_type type,
 413                                int size)
 414 {
 415         struct fw_img_parsing *img;
 416         struct fw_sec *sec;
 417         struct fw_sec_parsing *sec_parse;
 418
 419         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 420                 return -1;
 421
 422         sec_parse = (struct fw_sec_parsing *)data;
 423
 424         img = &pieces->img[type];
 425         sec = &img->sec[img->sec_counter];
 426
 427         sec->offset = le32_to_cpu(sec_parse->offset);
 428         sec->data = sec_parse->data;
 429         sec->size = size - sizeof(sec_parse->offset);
 430
 431         ++img->sec_counter;
 432
 433         return 0;
 434 }
 435
 436 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 437 {
 438         struct iwl_tlv_calib_data *def_calib =
 439                                         (struct iwl_tlv_calib_data *)data;
 440         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 441         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 442                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 443                         ucode_type);
 444                 return -EINVAL;
 445         }
 446         drv->fw.default_calib[ucode_type].flow_trigger =
 447                 def_calib->calib.flow_trigger;
 448         drv->fw.default_calib[ucode_type].event_trigger =
 449                 def_calib->calib.event_trigger;
 450
 451         return 0;
 452 }
 453
 454 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 455                                    struct iwl_ucode_capabilities *capa)
 456 {
 457         const struct iwl_ucode_api *ucode_api = (void *)data;
 458         u32 api_index = le32_to_cpu(ucode_api->api_index);
 459         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 460         int i;
 461
 462         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 463                 IWL_ERR(drv,
 464                         "api flags index %d larger than supported by driver\n",
 465                         api_index);
 466                 /* don't return an error so we can load FW that has more bits */
 467                 return 0;
 468         }
 469
 470         for (i = 0; i < 32; i++) {
 471                 if (api_flags & BIT(i))
 472                         __set_bit(i + 32 * api_index, capa->_api);
 473         }
 474
 475         return 0;
 476 }
 477
 478 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 479                                       struct iwl_ucode_capabilities *capa)
 480 {
 481         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 482         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 483         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 484         int i;
 485
 486         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 487                 IWL_ERR(drv,
 488                         "capa flags index %d larger than supported by driver\n",
 489                         api_index);
 490                 /* don't return an error so we can load FW that has more bits */
 491                 return 0;
 492         }
 493
 494         for (i = 0; i < 32; i++) {
 495                 if (api_flags & BIT(i))
 496                         __set_bit(i + 32 * api_index, capa->_capa);
 497         }
 498
 499         return 0;
 500 }
 501
 502 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 503                                     const struct firmware *ucode_raw,
 504                                     struct iwl_firmware_pieces *pieces)
 505 {
 506         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 507         u32 api_ver, hdr_size, build;
 508         char buildstr[25];
 509         const u8 *src;
 510
 511         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 512         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 513
 514         switch (api_ver) {
 515         default:
 516                 hdr_size = 28;
 517                 if (ucode_raw->size < hdr_size) {
 518                         IWL_ERR(drv, "File size too small!\n");
 519                         return -EINVAL;
 520                 }
 521                 build = le32_to_cpu(ucode->u.v2.build);
 522                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 523                              le32_to_cpu(ucode->u.v2.inst_size));
 524                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 525                              le32_to_cpu(ucode->u.v2.data_size));
 526                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 527                              le32_to_cpu(ucode->u.v2.init_size));
 528                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 529                              le32_to_cpu(ucode->u.v2.init_data_size));
 530                 src = ucode->u.v2.data;
 531                 break;
 532         case 0:
 533         case 1:
 534         case 2:
 535                 hdr_size = 24;
 536                 if (ucode_raw->size < hdr_size) {
 537                         IWL_ERR(drv, "File size too small!\n");
 538                         return -EINVAL;
 539                 }
 540                 build = 0;
 541                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 542                              le32_to_cpu(ucode->u.v1.inst_size));
 543                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 544                              le32_to_cpu(ucode->u.v1.data_size));
 545                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 546                              le32_to_cpu(ucode->u.v1.init_size));
 547                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 548                              le32_to_cpu(ucode->u.v1.init_data_size));
 549                 src = ucode->u.v1.data;
 550                 break;
 551         }
 552
 553         if (build)
 554                 sprintf(buildstr, " build %u%s", build,
 555                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 556                                 ? " (EXP)" : "");
 557         else
 558                 buildstr[0] = '\0';
 559
 560         snprintf(drv->fw.fw_version,
 561                  sizeof(drv->fw.fw_version),
 562                  "%u.%u.%u.%u%s",
 563                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 564                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 565                  IWL_UCODE_API(drv->fw.ucode_ver),
 566                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 567                  buildstr);
 568
 569         /* Verify size of file vs. image size info in file's header */
 570
 571         if (ucode_raw->size != hdr_size +
 572             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 573             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 574             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 575             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 576
 577                 IWL_ERR(drv,
 578                         "uCode file size %d does not match expected size\n",
 579                         (int)ucode_raw->size);
 580                 return -EINVAL;
 581         }
 582
 583
 584         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 585         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 586         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 587                        IWLAGN_RTC_INST_LOWER_BOUND);
 588         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 589         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 590         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 591                        IWLAGN_RTC_DATA_LOWER_BOUND);
 592         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 593         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 594         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 595                        IWLAGN_RTC_INST_LOWER_BOUND);
 596         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 597         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 598         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 599                        IWLAGN_RTC_DATA_LOWER_BOUND);
 600         return 0;
 601 }
 602
 603 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 604                                 const struct firmware *ucode_raw,
 605                                 struct iwl_firmware_pieces *pieces,
 606                                 struct iwl_ucode_capabilities *capa,
 607                                 bool *usniffer_images)
 608 {
 609         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 610         struct iwl_ucode_tlv *tlv;
 611         size_t len = ucode_raw->size;
 612         const u8 *data;
 613         u32 tlv_len;
 614         u32 usniffer_img;
 615         enum iwl_ucode_tlv_type tlv_type;
 616         const u8 *tlv_data;
 617         char buildstr[25];
 618         u32 build, paging_mem_size;
 619         int num_of_cpus;
 620         bool usniffer_req = false;
 621         bool gscan_capa = false;
 622
 623         if (len < sizeof(*ucode)) {
 624                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 625                 return -EINVAL;
 626         }
 627
 628         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 629                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 630                         le32_to_cpu(ucode->magic));
 631                 return -EINVAL;
 632         }
 633
 634         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 635         memcpy(drv->fw.human_readable, ucode->human_readable,
 636                sizeof(drv->fw.human_readable));
 637         build = le32_to_cpu(ucode->build);
 638
 639         if (build)
 640                 sprintf(buildstr, " build %u%s", build,
 641                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 642                                 ? " (EXP)" : "");
 643         else
 644                 buildstr[0] = '\0';
 645
 646         snprintf(drv->fw.fw_version,
 647                  sizeof(drv->fw.fw_version),
 648                  "%u.%u.%u.%u%s",
 649                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 650                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 651                  IWL_UCODE_API(drv->fw.ucode_ver),
 652                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 653                  buildstr);
 654
 655         data = ucode->data;
 656
 657         len -= sizeof(*ucode);
 658
 659         while (len >= sizeof(*tlv)) {
 660                 len -= sizeof(*tlv);
 661                 tlv = (void *)data;
 662
 663                 tlv_len = le32_to_cpu(tlv->length);
 664                 tlv_type = le32_to_cpu(tlv->type);
 665                 tlv_data = tlv->data;
 666
 667                 if (len < tlv_len) {
 668                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 669                                 len, tlv_len);
 670                         return -EINVAL;
 671                 }
 672                 len -= ALIGN(tlv_len, 4);
 673                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 674
 675                 switch (tlv_type) {
 676                 case IWL_UCODE_TLV_INST:
 677                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 678                                      IWL_UCODE_SECTION_INST, tlv_data);
 679                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 680                                      IWL_UCODE_SECTION_INST, tlv_len);
 681                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 682                                        IWL_UCODE_SECTION_INST,
 683                                        IWLAGN_RTC_INST_LOWER_BOUND);
 684                         break;
 685                 case IWL_UCODE_TLV_DATA:
 686                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 687                                      IWL_UCODE_SECTION_DATA, tlv_data);
 688                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 689                                      IWL_UCODE_SECTION_DATA, tlv_len);
 690                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 691                                        IWL_UCODE_SECTION_DATA,
 692                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 693                         break;
 694                 case IWL_UCODE_TLV_INIT:
 695                         set_sec_data(pieces, IWL_UCODE_INIT,
 696                                      IWL_UCODE_SECTION_INST, tlv_data);
 697                         set_sec_size(pieces, IWL_UCODE_INIT,
 698                                      IWL_UCODE_SECTION_INST, tlv_len);
 699                         set_sec_offset(pieces, IWL_UCODE_INIT,
 700                                        IWL_UCODE_SECTION_INST,
 701                                        IWLAGN_RTC_INST_LOWER_BOUND);
 702                         break;
 703                 case IWL_UCODE_TLV_INIT_DATA:
 704                         set_sec_data(pieces, IWL_UCODE_INIT,
 705                                      IWL_UCODE_SECTION_DATA, tlv_data);
 706                         set_sec_size(pieces, IWL_UCODE_INIT,
 707                                      IWL_UCODE_SECTION_DATA, tlv_len);
 708                         set_sec_offset(pieces, IWL_UCODE_INIT,
 709                                        IWL_UCODE_SECTION_DATA,
 710                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 711                         break;
 712                 case IWL_UCODE_TLV_BOOT:
 713                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 714                         break;
 715                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 716                         if (tlv_len != sizeof(u32))
 717                                 goto invalid_tlv_len;
 718                         capa->max_probe_length =
 719                                         le32_to_cpup((__le32 *)tlv_data);
 720                         break;
 721                 case IWL_UCODE_TLV_PAN:
 722                         if (tlv_len)
 723                                 goto invalid_tlv_len;
 724                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 725                         break;
 726                 case IWL_UCODE_TLV_FLAGS:
 727                         /* must be at least one u32 */
 728                         if (tlv_len < sizeof(u32))
 729                                 goto invalid_tlv_len;
 730                         /* and a proper number of u32s */
 731                         if (tlv_len % sizeof(u32))
 732                                 goto invalid_tlv_len;
 733                         /*
 734                          * This driver only reads the first u32 as
 735                          * right now no more features are defined,
 736                          * if that changes then either the driver
 737                          * will not work with the new firmware, or
 738                          * it'll not take advantage of new features.
 739                          */
 740                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 741                         break;
 742                 case IWL_UCODE_TLV_API_CHANGES_SET:
 743                         if (tlv_len != sizeof(struct iwl_ucode_api))
 744                                 goto invalid_tlv_len;
 745                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 746                                 goto tlv_error;
 747                         break;
 748                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 749                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 750                                 goto invalid_tlv_len;
 751                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 752                                 goto tlv_error;
 753                         break;
 754                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 755                         if (tlv_len != sizeof(u32))
 756                                 goto invalid_tlv_len;
 757                         pieces->init_evtlog_ptr =
 758                                         le32_to_cpup((__le32 *)tlv_data);
 759                         break;
 760                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 761                         if (tlv_len != sizeof(u32))
 762                                 goto invalid_tlv_len;
 763                         pieces->init_evtlog_size =
 764                                         le32_to_cpup((__le32 *)tlv_data);
 765                         break;
 766                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 767                         if (tlv_len != sizeof(u32))
 768                                 goto invalid_tlv_len;
 769                         pieces->init_errlog_ptr =
 770                                         le32_to_cpup((__le32 *)tlv_data);
 771                         break;
 772                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 773                         if (tlv_len != sizeof(u32))
 774                                 goto invalid_tlv_len;
 775                         pieces->inst_evtlog_ptr =
 776                                         le32_to_cpup((__le32 *)tlv_data);
 777                         break;
 778                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 779                         if (tlv_len != sizeof(u32))
 780                                 goto invalid_tlv_len;
 781                         pieces->inst_evtlog_size =
 782                                         le32_to_cpup((__le32 *)tlv_data);
 783                         break;
 784                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 785                         if (tlv_len != sizeof(u32))
 786                                 goto invalid_tlv_len;
 787                         pieces->inst_errlog_ptr =
 788                                         le32_to_cpup((__le32 *)tlv_data);
 789                         break;
 790                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 791                         if (tlv_len)
 792                                 goto invalid_tlv_len;
 793                         drv->fw.enhance_sensitivity_table = true;
 794                         break;
 795                 case IWL_UCODE_TLV_WOWLAN_INST:
 796                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 797                                      IWL_UCODE_SECTION_INST, tlv_data);
 798                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 799                                      IWL_UCODE_SECTION_INST, tlv_len);
 800                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 801                                        IWL_UCODE_SECTION_INST,
 802                                        IWLAGN_RTC_INST_LOWER_BOUND);
 803                         break;
 804                 case IWL_UCODE_TLV_WOWLAN_DATA:
 805                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 806                                      IWL_UCODE_SECTION_DATA, tlv_data);
 807                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 808                                      IWL_UCODE_SECTION_DATA, tlv_len);
 809                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 810                                        IWL_UCODE_SECTION_DATA,
 811                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 812                         break;
 813                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 814                         if (tlv_len != sizeof(u32))
 815                                 goto invalid_tlv_len;
 816                         capa->standard_phy_calibration_size =
 817                                         le32_to_cpup((__le32 *)tlv_data);
 818                         break;
 819                  case IWL_UCODE_TLV_SEC_RT:
 820                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 821                                             tlv_len);
 822                         drv->fw.mvm_fw = true;
 823                         break;
 824                 case IWL_UCODE_TLV_SEC_INIT:
 825                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 826                                             tlv_len);
 827                         drv->fw.mvm_fw = true;
 828                         break;
 829                 case IWL_UCODE_TLV_SEC_WOWLAN:
 830                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 831                                             tlv_len);
 832                         drv->fw.mvm_fw = true;
 833                         break;
 834                 case IWL_UCODE_TLV_DEF_CALIB:
 835                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 836                                 goto invalid_tlv_len;
 837                         if (iwl_set_default_calib(drv, tlv_data))
 838                                 goto tlv_error;
 839                         break;
 840                 case IWL_UCODE_TLV_PHY_SKU:
 841                         if (tlv_len != sizeof(u32))
 842                                 goto invalid_tlv_len;
 843                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 844                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 845                                                 FW_PHY_CFG_TX_CHAIN) >>
 846                                                 FW_PHY_CFG_TX_CHAIN_POS;
 847                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 848                                                 FW_PHY_CFG_RX_CHAIN) >>
 849                                                 FW_PHY_CFG_RX_CHAIN_POS;
 850                         break;
 851                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 852                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 853                                             tlv_len);
 854                         drv->fw.mvm_fw = true;
 855                         break;
 856                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 857                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 858                                             tlv_len);
 859                         drv->fw.mvm_fw = true;
 860                         break;
 861                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 862                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 863                                             tlv_len);
 864                         drv->fw.mvm_fw = true;
 865                         break;
 866                 case IWL_UCODE_TLV_NUM_OF_CPU:
 867                         if (tlv_len != sizeof(u32))
 868                                 goto invalid_tlv_len;
 869                         num_of_cpus =
 870                                 le32_to_cpup((__le32 *)tlv_data);
 871
 872                         if (num_of_cpus == 2) {
 873                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 874                                         true;
 875                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 876                                         true;
 877                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 878                                         true;
 879                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 880                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 881                                 return -EINVAL;
 882                         }
 883                         break;
 884                 case IWL_UCODE_TLV_CSCHEME:
 885                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 886                                 goto invalid_tlv_len;
 887                         break;
 888                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 889                         if (tlv_len != sizeof(u32))
 890                                 goto invalid_tlv_len;
 891                         capa->n_scan_channels =
 892                                 le32_to_cpup((__le32 *)tlv_data);
 893                         break;
 894                 case IWL_UCODE_TLV_FW_VERSION: {
 895                         __le32 *ptr = (void *)tlv_data;
 896                         u32 major, minor;
 897                         u8 local_comp;
 898
 899                         if (tlv_len != sizeof(u32) * 3)
 900                                 goto invalid_tlv_len;
 901
 902                         major = le32_to_cpup(ptr++);
 903                         minor = le32_to_cpup(ptr++);
 904                         local_comp = le32_to_cpup(ptr);
 905
 906                         snprintf(drv->fw.fw_version,
 907                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 908                                  major, minor, local_comp);
 909                         break;
 910                         }
 911                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 912                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 913
 914                         if (pieces->dbg_dest_tlv) {
 915                                 IWL_ERR(drv,
 916                                         "dbg destination ignored, already exists\n");
 917                                 break;
 918                         }
 919
 920                         pieces->dbg_dest_tlv = dest;
 921                         IWL_INFO(drv, "Found debug destination: %s\n",
 922                                  get_fw_dbg_mode_string(dest->monitor_mode));
 923
 924                         drv->fw.dbg_dest_reg_num =
 925                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 926                                                    reg_ops);
 927                         drv->fw.dbg_dest_reg_num /=
 928                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 929
 930                         break;
 931                         }
 932                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 933                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 934
 935                         if (!pieces->dbg_dest_tlv) {
 936                                 IWL_ERR(drv,
 937                                         "Ignore dbg config %d - no destination configured\n",
 938                                         conf->id);
 939                                 break;
 940                         }
 941
 942                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 943                                 IWL_ERR(drv,
 944                                         "Skip unknown configuration: %d\n",
 945                                         conf->id);
 946                                 break;
 947                         }
 948
 949                         if (pieces->dbg_conf_tlv[conf->id]) {
 950                                 IWL_ERR(drv,
 951                                         "Ignore duplicate dbg config %d\n",
 952                                         conf->id);
 953                                 break;
 954                         }
 955
 956                         if (conf->usniffer)
 957                                 usniffer_req = true;
 958
 959                         IWL_INFO(drv, "Found debug configuration: %d\n",
 960                                  conf->id);
 961
 962                         pieces->dbg_conf_tlv[conf->id] = conf;
 963                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 964                         break;
 965                         }
 966                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 967                         struct iwl_fw_dbg_trigger_tlv *trigger =
 968                                 (void *)tlv_data;
 969                         u32 trigger_id = le32_to_cpu(trigger->id);
 970
 971                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 972                                 IWL_ERR(drv,
 973                                         "Skip unknown trigger: %u\n",
 974                                         trigger->id);
 975                                 break;
 976                         }
 977
 978                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 979                                 IWL_ERR(drv,
 980                                         "Ignore duplicate dbg trigger %u\n",
 981                                         trigger->id);
 982                                 break;
 983                         }
 984
 985                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
 986
 987                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
 988                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
 989                         break;
 990                         }
 991                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
 992                         *usniffer_images = true;
 993                         iwl_store_ucode_sec(pieces, tlv_data,
 994                                             IWL_UCODE_REGULAR_USNIFFER,
 995                                             tlv_len);
 996                         break;
 997                 case IWL_UCODE_TLV_PAGING:
 998                         if (tlv_len != sizeof(u32))
 999                                 goto invalid_tlv_len;
1000                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1001
1002                         IWL_DEBUG_FW(drv,
1003                                      "Paging: paging enabled (size = %u bytes)\n",
1004                                      paging_mem_size);
1005
1006                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1007                                 IWL_ERR(drv,
1008                                         "Paging: driver supports up to %lu bytes for paging image\n",
1009                                         MAX_PAGING_IMAGE_SIZE);
1010                                 return -EINVAL;
1011                         }
1012
1013                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1014                                 IWL_ERR(drv,
1015                                         "Paging: image isn't multiple %lu\n",
1016                                         FW_PAGING_SIZE);
1017                                 return -EINVAL;
1018                         }
1019
1020                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1021                                 paging_mem_size;
1022                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1023                         drv->fw.img[usniffer_img].paging_mem_size =
1024                                 paging_mem_size;
1025                         break;
1026                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1027                         if (tlv_len != sizeof(u32))
1028                                 goto invalid_tlv_len;
1029                         drv->fw.sdio_adma_addr =
1030                                 le32_to_cpup((__le32 *)tlv_data);
1031                         break;
1032                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1033                         /*
1034                          * Don't return an error in case of a shorter tlv_len
1035                          * to enable loading of FW that has an old format
1036                          * of GSCAN capabilities TLV.
1037                          */
1038                         if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1039                                 break;
1040
1041                         iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1042                         gscan_capa = true;
1043                         break;
1044                 default:
1045                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1046                         break;
1047                 }
1048         }
1049
1050         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1051             usniffer_req && !*usniffer_images) {
1052                 IWL_ERR(drv,
1053                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1054                 return -EINVAL;
1055         }
1056
1057         if (len) {
1058                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1059                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1060                 return -EINVAL;
1061         }
1062
1063         if (WARN(fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1064                  !gscan_capa,
1065                  "GSCAN is supported but capabilities TLV is unavailable\n"))
1066                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1067                             capa->_capa);
1068
1069         return 0;
1070
1071  invalid_tlv_len:
1072         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1073  tlv_error:
1074         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1075
1076         return -EINVAL;
1077 }
1078
1079 static int iwl_alloc_ucode(struct iwl_drv *drv,
1080                            struct iwl_firmware_pieces *pieces,
1081                            enum iwl_ucode_type type)
1082 {
1083         int i;
1084         for (i = 0;
1085              i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
1086              i++)
1087                 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
1088                                       get_sec(pieces, type, i)))
1089                         return -ENOMEM;
1090         return 0;
1091 }
1092
1093 static int validate_sec_sizes(struct iwl_drv *drv,
1094                               struct iwl_firmware_pieces *pieces,
1095                               const struct iwl_cfg *cfg)
1096 {
1097         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
1098                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1099                              IWL_UCODE_SECTION_INST));
1100         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
1101                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1102                              IWL_UCODE_SECTION_DATA));
1103         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
1104                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1105         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
1106                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1107
1108         /* Verify that uCode images will fit in card's SRAM. */
1109         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1110             cfg->max_inst_size) {
1111                 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
1112                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1113                                      IWL_UCODE_SECTION_INST));
1114                 return -1;
1115         }
1116
1117         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1118             cfg->max_data_size) {
1119                 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
1120                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1121                                      IWL_UCODE_SECTION_DATA));
1122                 return -1;
1123         }
1124
1125         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1126              cfg->max_inst_size) {
1127                 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
1128                         get_sec_size(pieces, IWL_UCODE_INIT,
1129                                      IWL_UCODE_SECTION_INST));
1130                 return -1;
1131         }
1132
1133         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1134             cfg->max_data_size) {
1135                 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
1136                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1137                                      IWL_UCODE_SECTION_DATA));
1138                 return -1;
1139         }
1140         return 0;
1141 }
1142
1143 static struct iwl_op_mode *
1144 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1145 {
1146         const struct iwl_op_mode_ops *ops = op->ops;
1147         struct dentry *dbgfs_dir = NULL;
1148         struct iwl_op_mode *op_mode = NULL;
1149
1150 #ifdef CONFIG_IWLWIFI_DEBUGFS
1151         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1152                                                 drv->dbgfs_drv);
1153         if (!drv->dbgfs_op_mode) {
1154                 IWL_ERR(drv,
1155                         "failed to create opmode debugfs directory\n");
1156                 return op_mode;
1157         }
1158         dbgfs_dir = drv->dbgfs_op_mode;
1159 #endif
1160
1161         op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
1162
1163 #ifdef CONFIG_IWLWIFI_DEBUGFS
1164         if (!op_mode) {
1165                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1166                 drv->dbgfs_op_mode = NULL;
1167         }
1168 #endif
1169
1170         return op_mode;
1171 }
1172
1173 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1174 {
1175         /* op_mode can be NULL if its start failed */
1176         if (drv->op_mode) {
1177                 iwl_op_mode_stop(drv->op_mode);
1178                 drv->op_mode = NULL;
1179
1180 #ifdef CONFIG_IWLWIFI_DEBUGFS
1181                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1182                 drv->dbgfs_op_mode = NULL;
1183 #endif
1184         }
1185 }
1186
1187 /**
1188  * iwl_req_fw_callback - callback when firmware was loaded
1189  *
1190  * If loaded successfully, copies the firmware into buffers
1191  * for the card to fetch (via DMA).
1192  */
1193 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1194 {
1195         struct iwl_drv *drv = context;
1196         struct iwl_fw *fw = &drv->fw;
1197         struct iwl_ucode_header *ucode;
1198         struct iwlwifi_opmode_table *op;
1199         int err;
1200         struct iwl_firmware_pieces *pieces;
1201         const unsigned int api_max = drv->cfg->ucode_api_max;
1202         unsigned int api_ok = drv->cfg->ucode_api_ok;
1203         const unsigned int api_min = drv->cfg->ucode_api_min;
1204         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1205         u32 api_ver;
1206         int i;
1207         bool load_module = false;
1208         bool usniffer_images = false;
1209
1210         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1211         fw->ucode_capa.standard_phy_calibration_size =
1212                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1213         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1214
1215         if (!api_ok)
1216                 api_ok = api_max;
1217
1218         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1219         if (!pieces)
1220                 return;
1221
1222         if (!ucode_raw) {
1223                 if (drv->fw_index <= api_ok)
1224                         IWL_ERR(drv,
1225                                 "request for firmware file '%s' failed.\n",
1226                                 drv->firmware_name);
1227                 goto try_again;
1228         }
1229
1230         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1231                        drv->firmware_name, ucode_raw->size);
1232
1233         /* Make sure that we got at least the API version number */
1234         if (ucode_raw->size < 4) {
1235                 IWL_ERR(drv, "File size way too small!\n");
1236                 goto try_again;
1237         }
1238
1239         /* Data from ucode file:  header followed by uCode images */
1240         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1241
1242         if (ucode->ver)
1243                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1244         else
1245                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1246                                              &fw->ucode_capa, &usniffer_images);
1247
1248         if (err)
1249                 goto try_again;
1250
1251         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1252                 api_ver = drv->fw.ucode_ver;
1253         else
1254                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1255
1256         /*
1257          * api_ver should match the api version forming part of the
1258          * firmware filename ... but we don't check for that and only rely
1259          * on the API version read from firmware header from here on forward
1260          */
1261         /* no api version check required for experimental uCode */
1262         if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1263                 if (api_ver < api_min || api_ver > api_max) {
1264                         IWL_ERR(drv,
1265                                 "Driver unable to support your firmware API. "
1266                                 "Driver supports v%u, firmware is v%u.\n",
1267                                 api_max, api_ver);
1268                         goto try_again;
1269                 }
1270
1271                 if (api_ver < api_ok) {
1272                         if (api_ok != api_max)
1273                                 IWL_ERR(drv, "Firmware has old API version, "
1274                                         "expected v%u through v%u, got v%u.\n",
1275                                         api_ok, api_max, api_ver);
1276                         else
1277                                 IWL_ERR(drv, "Firmware has old API version, "
1278                                         "expected v%u, got v%u.\n",
1279                                         api_max, api_ver);
1280                         IWL_ERR(drv, "New firmware can be obtained from "
1281                                       "http://www.intellinuxwireless.org/.\n");
1282                 }
1283         }
1284
1285         /*
1286          * In mvm uCode there is no difference between data and instructions
1287          * sections.
1288          */
1289         if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
1290                 goto try_again;
1291
1292         /* Allocate ucode buffers for card's bus-master loading ... */
1293
1294         /* Runtime instructions and 2 copies of data:
1295          * 1) unmodified from disk
1296          * 2) backup cache for save/restore during power-downs */
1297         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1298                 if (iwl_alloc_ucode(drv, pieces, i))
1299                         goto out_free_fw;
1300
1301         if (pieces->dbg_dest_tlv) {
1302                 drv->fw.dbg_dest_tlv =
1303                         kmemdup(pieces->dbg_dest_tlv,
1304                                 sizeof(*pieces->dbg_dest_tlv) +
1305                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1306                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1307
1308                 if (!drv->fw.dbg_dest_tlv)
1309                         goto out_free_fw;
1310         }
1311
1312         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1313                 if (pieces->dbg_conf_tlv[i]) {
1314                         drv->fw.dbg_conf_tlv_len[i] =
1315                                 pieces->dbg_conf_tlv_len[i];
1316                         drv->fw.dbg_conf_tlv[i] =
1317                                 kmemdup(pieces->dbg_conf_tlv[i],
1318                                         drv->fw.dbg_conf_tlv_len[i],
1319                                         GFP_KERNEL);
1320                         if (!drv->fw.dbg_conf_tlv[i])
1321                                 goto out_free_fw;
1322                 }
1323         }
1324
1325         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1326
1327         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1328                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1329         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1330         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1331                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1332         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1333                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1334         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1335                 sizeof(struct iwl_fw_dbg_trigger_stats);
1336         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1337                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1338         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1339                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1340         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1341                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1342         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1343                 sizeof(struct iwl_fw_dbg_trigger_ba);
1344         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1345                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1346
1347         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1348                 if (pieces->dbg_trigger_tlv[i]) {
1349                         /*
1350                          * If the trigger isn't long enough, WARN and exit.
1351                          * Someone is trying to debug something and he won't
1352                          * be able to catch the bug he is trying to chase.
1353                          * We'd better be noisy to be sure he knows what's
1354                          * going on.
1355                          */
1356                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1357                                     (trigger_tlv_sz[i] +
1358                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1359                                 goto out_free_fw;
1360                         drv->fw.dbg_trigger_tlv_len[i] =
1361                                 pieces->dbg_trigger_tlv_len[i];
1362                         drv->fw.dbg_trigger_tlv[i] =
1363                                 kmemdup(pieces->dbg_trigger_tlv[i],
1364                                         drv->fw.dbg_trigger_tlv_len[i],
1365                                         GFP_KERNEL);
1366                         if (!drv->fw.dbg_trigger_tlv[i])
1367                                 goto out_free_fw;
1368                 }
1369         }
1370
1371         /* Now that we can no longer fail, copy information */
1372
1373         /*
1374          * The (size - 16) / 12 formula is based on the information recorded
1375          * for each event, which is of mode 1 (including timestamp) for all
1376          * new microcodes that include this information.
1377          */
1378         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1379         if (pieces->init_evtlog_size)
1380                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1381         else
1382                 fw->init_evtlog_size =
1383                         drv->cfg->base_params->max_event_log_size;
1384         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1385         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1386         if (pieces->inst_evtlog_size)
1387                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1388         else
1389                 fw->inst_evtlog_size =
1390                         drv->cfg->base_params->max_event_log_size;
1391         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1392
1393         /*
1394          * figure out the offset of chain noise reset and gain commands
1395          * base on the size of standard phy calibration commands table size
1396          */
1397         if (fw->ucode_capa.standard_phy_calibration_size >
1398             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1399                 fw->ucode_capa.standard_phy_calibration_size =
1400                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1401
1402         /* We have our copies now, allow OS release its copies */
1403         release_firmware(ucode_raw);
1404
1405         mutex_lock(&iwlwifi_opmode_table_mtx);
1406         if (fw->mvm_fw)
1407                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1408         else
1409                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1410
1411         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1412                  drv->fw.fw_version, op->name);
1413
1414         /* add this device to the list of devices using this op_mode */
1415         list_add_tail(&drv->list, &op->drv);
1416
1417         if (op->ops) {
1418                 drv->op_mode = _iwl_op_mode_start(drv, op);
1419
1420                 if (!drv->op_mode) {
1421                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1422                         goto out_unbind;
1423                 }
1424         } else {
1425                 load_module = true;
1426         }
1427         mutex_unlock(&iwlwifi_opmode_table_mtx);
1428
1429         /*
1430          * Complete the firmware request last so that
1431          * a driver unbind (stop) doesn't run while we
1432          * are doing the start() above.
1433          */
1434         complete(&drv->request_firmware_complete);
1435
1436         /*
1437          * Load the module last so we don't block anything
1438          * else from proceeding if the module fails to load
1439          * or hangs loading.
1440          */
1441         if (load_module) {
1442                 err = request_module("%s", op->name);
1443 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1444                 if (err)
1445                         IWL_ERR(drv,
1446                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1447                                 op->name, err);
1448 #endif
1449         }
1450         kfree(pieces);
1451         return;
1452
1453  try_again:
1454         /* try next, if any */
1455         release_firmware(ucode_raw);
1456         if (iwl_request_firmware(drv, false))
1457                 goto out_unbind;
1458         kfree(pieces);
1459         return;
1460
1461  out_free_fw:
1462         IWL_ERR(drv, "failed to allocate pci memory\n");
1463         iwl_dealloc_ucode(drv);
1464         release_firmware(ucode_raw);
1465  out_unbind:
1466         kfree(pieces);
1467         complete(&drv->request_firmware_complete);
1468         device_release_driver(drv->trans->dev);
1469 }
1470
1471 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1472                               const struct iwl_cfg *cfg)
1473 {
1474         struct iwl_drv *drv;
1475         int ret;
1476
1477         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1478         if (!drv) {
1479                 ret = -ENOMEM;
1480                 goto err;
1481         }
1482
1483         drv->trans = trans;
1484         drv->dev = trans->dev;
1485         drv->cfg = cfg;
1486
1487         init_completion(&drv->request_firmware_complete);
1488         INIT_LIST_HEAD(&drv->list);
1489
1490 #ifdef CONFIG_IWLWIFI_DEBUGFS
1491         /* Create the device debugfs entries. */
1492         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1493                                             iwl_dbgfs_root);
1494
1495         if (!drv->dbgfs_drv) {
1496                 IWL_ERR(drv, "failed to create debugfs directory\n");
1497                 ret = -ENOMEM;
1498                 goto err_free_drv;
1499         }
1500
1501         /* Create transport layer debugfs dir */
1502         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1503
1504         if (!drv->trans->dbgfs_dir) {
1505                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1506                 ret = -ENOMEM;
1507                 goto err_free_dbgfs;
1508         }
1509 #endif
1510
1511         ret = iwl_request_firmware(drv, true);
1512         if (ret) {
1513                 IWL_ERR(trans, "Couldn't request the fw\n");
1514                 goto err_fw;
1515         }
1516
1517         return drv;
1518
1519 err_fw:
1520 #ifdef CONFIG_IWLWIFI_DEBUGFS
1521 err_free_dbgfs:
1522         debugfs_remove_recursive(drv->dbgfs_drv);
1523 err_free_drv:
1524 #endif
1525         kfree(drv);
1526 err:
1527         return ERR_PTR(ret);
1528 }
1529
1530 void iwl_drv_stop(struct iwl_drv *drv)
1531 {
1532         wait_for_completion(&drv->request_firmware_complete);
1533
1534         _iwl_op_mode_stop(drv);
1535
1536         iwl_dealloc_ucode(drv);
1537
1538         mutex_lock(&iwlwifi_opmode_table_mtx);
1539         /*
1540          * List is empty (this item wasn't added)
1541          * when firmware loading failed -- in that
1542          * case we can't remove it from any list.
1543          */
1544         if (!list_empty(&drv->list))
1545                 list_del(&drv->list);
1546         mutex_unlock(&iwlwifi_opmode_table_mtx);
1547
1548 #ifdef CONFIG_IWLWIFI_DEBUGFS
1549         debugfs_remove_recursive(drv->dbgfs_drv);
1550 #endif
1551
1552         kfree(drv);
1553 }
1554
1555
1556 /* shared module parameters */
1557 struct iwl_mod_params iwlwifi_mod_params = {
1558         .restart_fw = true,
1559         .bt_coex_active = true,
1560         .power_level = IWL_POWER_INDEX_1,
1561         .d0i3_disable = true,
1562         .d0i3_entry_delay = 1000,
1563 #ifndef CONFIG_IWLWIFI_UAPSD
1564         .uapsd_disable = true,
1565 #endif /* CONFIG_IWLWIFI_UAPSD */
1566         /* the rest are 0 by default */
1567 };
1568 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1569
1570 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1571 {
1572         int i;
1573         struct iwl_drv *drv;
1574         struct iwlwifi_opmode_table *op;
1575
1576         mutex_lock(&iwlwifi_opmode_table_mtx);
1577         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1578                 op = &iwlwifi_opmode_table[i];
1579                 if (strcmp(op->name, name))
1580                         continue;
1581                 op->ops = ops;
1582                 /* TODO: need to handle exceptional case */
1583                 list_for_each_entry(drv, &op->drv, list)
1584                         drv->op_mode = _iwl_op_mode_start(drv, op);
1585
1586                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1587                 return 0;
1588         }
1589         mutex_unlock(&iwlwifi_opmode_table_mtx);
1590         return -EIO;
1591 }
1592 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1593
1594 void iwl_opmode_deregister(const char *name)
1595 {
1596         int i;
1597         struct iwl_drv *drv;
1598
1599         mutex_lock(&iwlwifi_opmode_table_mtx);
1600         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1601                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1602                         continue;
1603                 iwlwifi_opmode_table[i].ops = NULL;
1604
1605                 /* call the stop routine for all devices */
1606                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1607                         _iwl_op_mode_stop(drv);
1608
1609                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1610                 return;
1611         }
1612         mutex_unlock(&iwlwifi_opmode_table_mtx);
1613 }
1614 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1615
1616 static int __init iwl_drv_init(void)
1617 {
1618         int i;
1619
1620         mutex_init(&iwlwifi_opmode_table_mtx);
1621
1622         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1623                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1624
1625         pr_info(DRV_DESCRIPTION "\n");
1626         pr_info(DRV_COPYRIGHT "\n");
1627
1628 #ifdef CONFIG_IWLWIFI_DEBUGFS
1629         /* Create the root of iwlwifi debugfs subsystem. */
1630         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1631
1632         if (!iwl_dbgfs_root)
1633                 return -EFAULT;
1634 #endif
1635
1636         return iwl_pci_register_driver();
1637 }
1638 module_init(iwl_drv_init);
1639
1640 static void __exit iwl_drv_exit(void)
1641 {
1642         iwl_pci_unregister_driver();
1643
1644 #ifdef CONFIG_IWLWIFI_DEBUGFS
1645         debugfs_remove_recursive(iwl_dbgfs_root);
1646 #endif
1647 }
1648 module_exit(iwl_drv_exit);
1649
1650 #ifdef CONFIG_IWLWIFI_DEBUG
1651 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1652                    S_IRUGO | S_IWUSR);
1653 MODULE_PARM_DESC(debug, "debug output mask");
1654 #endif
1655
1656 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1657 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1658 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1659 MODULE_PARM_DESC(11n_disable,
1660         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1661 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1662                    int, S_IRUGO);
1663 MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)");
1664 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1665 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1666
1667 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1668                    int, S_IRUGO);
1669 MODULE_PARM_DESC(antenna_coupling,
1670                  "specify antenna coupling in dB (default: 0 dB)");
1671
1672 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1673 MODULE_PARM_DESC(nvm_file, "NVM file name");
1674
1675 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1676                    bool, S_IRUGO);
1677 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1678
1679 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1680                    bool, S_IRUGO);
1681 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1682
1683 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1684                    bool, S_IRUGO | S_IWUSR);
1685 #ifdef CONFIG_IWLWIFI_UAPSD
1686 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
1687 #else
1688 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)");
1689 #endif
1690
1691 /*
1692  * set bt_coex_active to true, uCode will do kill/defer
1693  * every time the priority line is asserted (BT is sending signals on the
1694  * priority line in the PCIx).
1695  * set bt_coex_active to false, uCode will ignore the BT activity and
1696  * perform the normal operation
1697  *
1698  * User might experience transmit issue on some platform due to WiFi/BT
1699  * co-exist problem. The possible behaviors are:
1700  *   Able to scan and finding all the available AP
1701  *   Not able to associate with any AP
1702  * On those platforms, WiFi communication can be restored by set
1703  * "bt_coex_active" module parameter to "false"
1704  *
1705  * default: bt_coex_active = true (BT_COEX_ENABLE)
1706  */
1707 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1708                 bool, S_IRUGO);
1709 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1710
1711 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1712 MODULE_PARM_DESC(led_mode, "0=system default, "
1713                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1714
1715 module_param_named(power_save, iwlwifi_mod_params.power_save,
1716                 bool, S_IRUGO);
1717 MODULE_PARM_DESC(power_save,
1718                  "enable WiFi power management (default: disable)");
1719
1720 module_param_named(power_level, iwlwifi_mod_params.power_level,
1721                 int, S_IRUGO);
1722 MODULE_PARM_DESC(power_level,
1723                  "default power save level (range from 1 - 5, default: 1)");
1724
1725 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1726 MODULE_PARM_DESC(fw_monitor,
1727                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1728
1729 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1730                    uint, S_IRUGO);
1731 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1732
1733 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1734                    S_IRUGO);
1735 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities");