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