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

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  *  * Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *  * Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in
  48  *    the documentation and/or other materials provided with the
  49  *    distribution.
  50  *  * Neither the name Intel Corporation nor the names of its
  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/completion.h>
  68 #include <linux/dma-mapping.h>
  69 #include <linux/firmware.h>
  70 #include <linux/module.h>
  71 #include <linux/vmalloc.h>
  72
  73 #include "iwl-drv.h"
  74 #include "iwl-csr.h"
  75 #include "iwl-debug.h"
  76 #include "iwl-trans.h"
  77 #include "iwl-op-mode.h"
  78 #include "iwl-agn-hw.h"
  79 #include "fw/img.h"
  80 #include "iwl-config.h"
  81 #include "iwl-modparams.h"
  82
  83 /******************************************************************************
  84  *
  85  * module boiler plate
  86  *
  87  ******************************************************************************/
  88
  89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  92 MODULE_LICENSE("GPL");
  93
  94 #ifdef CONFIG_IWLWIFI_DEBUGFS
  95 static struct dentry *iwl_dbgfs_root;
  96 #endif
  97
  98 /**
  99  * struct iwl_drv - drv common data
 100  * @list: list of drv structures using this opmode
 101  * @fw: the iwl_fw structure
 102  * @op_mode: the running op_mode
 103  * @trans: transport layer
 104  * @dev: for debug prints only
 105  * @fw_index: firmware revision to try loading
 106  * @firmware_name: composite filename of ucode file to load
 107  * @request_firmware_complete: the firmware has been obtained from user space
 108  */
 109 struct iwl_drv {
 110         struct list_head list;
 111         struct iwl_fw fw;
 112
 113         struct iwl_op_mode *op_mode;
 114         struct iwl_trans *trans;
 115         struct device *dev;
 116
 117         int fw_index;                   /* firmware we're trying to load */
 118         char firmware_name[64];         /* name of firmware file to load */
 119
 120         struct completion request_firmware_complete;
 121
 122 #ifdef CONFIG_IWLWIFI_DEBUGFS
 123         struct dentry *dbgfs_drv;
 124         struct dentry *dbgfs_trans;
 125         struct dentry *dbgfs_op_mode;
 126 #endif
 127 };
 128
 129 enum {
 130         DVM_OP_MODE,
 131         MVM_OP_MODE,
 132 };
 133
 134 /* Protects the table contents, i.e. the ops pointer & drv list */
 135 static struct mutex iwlwifi_opmode_table_mtx;
 136 static struct iwlwifi_opmode_table {
 137         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 138         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 139         struct list_head drv;           /* list of devices using this op_mode */
 140 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 141         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 142         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 143 };
 144
 145 #define IWL_DEFAULT_SCAN_CHANNELS 40
 146
 147 /*
 148  * struct fw_sec: Just for the image parsing process.
 149  * For the fw storage we are using struct fw_desc.
 150  */
 151 struct fw_sec {
 152         const void *data;               /* the sec data */
 153         size_t size;                    /* section size */
 154         u32 offset;                     /* offset of writing in the device */
 155 };
 156
 157 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 158 {
 159         vfree(desc->data);
 160         desc->data = NULL;
 161         desc->len = 0;
 162 }
 163
 164 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 165 {
 166         int i;
 167         for (i = 0; i < img->num_sec; i++)
 168                 iwl_free_fw_desc(drv, &img->sec[i]);
 169         kfree(img->sec);
 170 }
 171
 172 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 173 {
 174         int i;
 175
 176         kfree(drv->fw.dbg_dest_tlv);
 177         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
 178                 kfree(drv->fw.dbg_conf_tlv[i]);
 179         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
 180                 kfree(drv->fw.dbg_trigger_tlv[i]);
 181         kfree(drv->fw.dbg_mem_tlv);
 182
 183         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 184                 iwl_free_fw_img(drv, drv->fw.img + i);
 185 }
 186
 187 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 188                              struct fw_sec *sec)
 189 {
 190         void *data;
 191
 192         desc->data = NULL;
 193
 194         if (!sec || !sec->size)
 195                 return -EINVAL;
 196
 197         data = vmalloc(sec->size);
 198         if (!data)
 199                 return -ENOMEM;
 200
 201         desc->len = sec->size;
 202         desc->offset = sec->offset;
 203         memcpy(data, sec->data, desc->len);
 204         desc->data = data;
 205
 206         return 0;
 207 }
 208
 209 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 210                                 void *context);
 211
 212 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 213 {
 214         const struct iwl_cfg *cfg = drv->trans->cfg;
 215         char tag[8];
 216         const char *fw_pre_name;
 217
 218         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 219             (CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP ||
 220              CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_C_STEP))
 221                 fw_pre_name = cfg->fw_name_pre_b_or_c_step;
 222         else if (drv->trans->cfg->integrated &&
 223                  CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP &&
 224                  cfg->fw_name_pre_rf_next_step)
 225                 fw_pre_name = cfg->fw_name_pre_rf_next_step;
 226         else
 227                 fw_pre_name = cfg->fw_name_pre;
 228
 229         if (first) {
 230                 drv->fw_index = cfg->ucode_api_max;
 231                 sprintf(tag, "%d", drv->fw_index);
 232         } else {
 233                 drv->fw_index--;
 234                 sprintf(tag, "%d", drv->fw_index);
 235         }
 236
 237         if (drv->fw_index < cfg->ucode_api_min) {
 238                 IWL_ERR(drv, "no suitable firmware found!\n");
 239
 240                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 241                         IWL_ERR(drv, "%s%d is required\n", fw_pre_name,
 242                                 cfg->ucode_api_max);
 243                 } else {
 244                         IWL_ERR(drv, "minimum version required: %s%d\n",
 245                                 fw_pre_name,
 246                                 cfg->ucode_api_min);
 247                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 248                                 fw_pre_name,
 249                                 cfg->ucode_api_max);
 250                 }
 251
 252                 IWL_ERR(drv,
 253                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 254                 return -ENOENT;
 255         }
 256
 257         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 258                  fw_pre_name, tag);
 259
 260         IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
 261                        drv->firmware_name);
 262
 263         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 264                                        drv->trans->dev,
 265                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 266 }
 267
 268 struct fw_img_parsing {
 269         struct fw_sec *sec;
 270         int sec_counter;
 271 };
 272
 273 /*
 274  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 275  */
 276 struct fw_sec_parsing {
 277         __le32 offset;
 278         const u8 data[];
 279 } __packed;
 280
 281 /**
 282  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 283  *
 284  * @ucode_type: the uCode to which the following default calib relates.
 285  * @calib: default calibrations.
 286  */
 287 struct iwl_tlv_calib_data {
 288         __le32 ucode_type;
 289         struct iwl_tlv_calib_ctrl calib;
 290 } __packed;
 291
 292 struct iwl_firmware_pieces {
 293         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 294
 295         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 296         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 297
 298         /* FW debug data parsed for driver usage */
 299         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 300         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 301         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 302         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 303         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 304         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 305         size_t n_dbg_mem_tlv;
 306 };
 307
 308 /*
 309  * These functions are just to extract uCode section data from the pieces
 310  * structure.
 311  */
 312 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 313                               enum iwl_ucode_type type,
 314                               int  sec)
 315 {
 316         return &pieces->img[type].sec[sec];
 317 }
 318
 319 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 320                            enum iwl_ucode_type type,
 321                            int sec)
 322 {
 323         struct fw_img_parsing *img = &pieces->img[type];
 324         struct fw_sec *sec_memory;
 325         int size = sec + 1;
 326         size_t alloc_size = sizeof(*img->sec) * size;
 327
 328         if (img->sec && img->sec_counter >= size)
 329                 return;
 330
 331         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 332         if (!sec_memory)
 333                 return;
 334
 335         img->sec = sec_memory;
 336         img->sec_counter = size;
 337 }
 338
 339 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 340                          enum iwl_ucode_type type,
 341                          int sec,
 342                          const void *data)
 343 {
 344         alloc_sec_data(pieces, type, sec);
 345
 346         pieces->img[type].sec[sec].data = data;
 347 }
 348
 349 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 350                          enum iwl_ucode_type type,
 351                          int sec,
 352                          size_t size)
 353 {
 354         alloc_sec_data(pieces, type, sec);
 355
 356         pieces->img[type].sec[sec].size = size;
 357 }
 358
 359 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 360                            enum iwl_ucode_type type,
 361                            int sec)
 362 {
 363         return pieces->img[type].sec[sec].size;
 364 }
 365
 366 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 367                            enum iwl_ucode_type type,
 368                            int sec,
 369                            u32 offset)
 370 {
 371         alloc_sec_data(pieces, type, sec);
 372
 373         pieces->img[type].sec[sec].offset = offset;
 374 }
 375
 376 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 377 {
 378         int i, j;
 379         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 380         struct iwl_fw_cipher_scheme *fwcs;
 381
 382         if (len < sizeof(*l) ||
 383             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 384                 return -EINVAL;
 385
 386         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 387                 fwcs = &l->cs[j];
 388
 389                 /* we skip schemes with zero cipher suite selector */
 390                 if (!fwcs->cipher)
 391                         continue;
 392
 393                 fw->cs[j++] = *fwcs;
 394         }
 395
 396         return 0;
 397 }
 398
 399 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 400                                  const u32 len)
 401 {
 402         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 403         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 404
 405         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 406         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 407         capa->max_ap_cache_per_scan =
 408                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 409         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 410         capa->max_scan_reporting_threshold =
 411                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 412         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 413         capa->max_significant_change_aps =
 414                 le32_to_cpu(fw_capa->max_significant_change_aps);
 415         capa->max_bssid_history_entries =
 416                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 417         capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
 418         capa->max_number_epno_networks =
 419                 le32_to_cpu(fw_capa->max_number_epno_networks);
 420         capa->max_number_epno_networks_by_ssid =
 421                 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
 422         capa->max_number_of_white_listed_ssid =
 423                 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
 424         capa->max_number_of_black_listed_ssid =
 425                 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
 426 }
 427
 428 /*
 429  * Gets uCode section from tlv.
 430  */
 431 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 432                                const void *data, enum iwl_ucode_type type,
 433                                int size)
 434 {
 435         struct fw_img_parsing *img;
 436         struct fw_sec *sec;
 437         struct fw_sec_parsing *sec_parse;
 438         size_t alloc_size;
 439
 440         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 441                 return -1;
 442
 443         sec_parse = (struct fw_sec_parsing *)data;
 444
 445         img = &pieces->img[type];
 446
 447         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 448         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 449         if (!sec)
 450                 return -ENOMEM;
 451         img->sec = sec;
 452
 453         sec = &img->sec[img->sec_counter];
 454
 455         sec->offset = le32_to_cpu(sec_parse->offset);
 456         sec->data = sec_parse->data;
 457         sec->size = size - sizeof(sec_parse->offset);
 458
 459         ++img->sec_counter;
 460
 461         return 0;
 462 }
 463
 464 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 465 {
 466         struct iwl_tlv_calib_data *def_calib =
 467                                         (struct iwl_tlv_calib_data *)data;
 468         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 469         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 470                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 471                         ucode_type);
 472                 return -EINVAL;
 473         }
 474         drv->fw.default_calib[ucode_type].flow_trigger =
 475                 def_calib->calib.flow_trigger;
 476         drv->fw.default_calib[ucode_type].event_trigger =
 477                 def_calib->calib.event_trigger;
 478
 479         return 0;
 480 }
 481
 482 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 483                                    struct iwl_ucode_capabilities *capa)
 484 {
 485         const struct iwl_ucode_api *ucode_api = (void *)data;
 486         u32 api_index = le32_to_cpu(ucode_api->api_index);
 487         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 488         int i;
 489
 490         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 491                 IWL_ERR(drv,
 492                         "api flags index %d larger than supported by driver\n",
 493                         api_index);
 494                 /* don't return an error so we can load FW that has more bits */
 495                 return 0;
 496         }
 497
 498         for (i = 0; i < 32; i++) {
 499                 if (api_flags & BIT(i))
 500                         __set_bit(i + 32 * api_index, capa->_api);
 501         }
 502
 503         return 0;
 504 }
 505
 506 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 507                                       struct iwl_ucode_capabilities *capa)
 508 {
 509         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 510         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 511         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 512         int i;
 513
 514         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 515                 IWL_ERR(drv,
 516                         "capa flags index %d larger than supported by driver\n",
 517                         api_index);
 518                 /* don't return an error so we can load FW that has more bits */
 519                 return 0;
 520         }
 521
 522         for (i = 0; i < 32; i++) {
 523                 if (api_flags & BIT(i))
 524                         __set_bit(i + 32 * api_index, capa->_capa);
 525         }
 526
 527         return 0;
 528 }
 529
 530 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 531                                     const struct firmware *ucode_raw,
 532                                     struct iwl_firmware_pieces *pieces)
 533 {
 534         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 535         u32 api_ver, hdr_size, build;
 536         char buildstr[25];
 537         const u8 *src;
 538
 539         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 540         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 541
 542         switch (api_ver) {
 543         default:
 544                 hdr_size = 28;
 545                 if (ucode_raw->size < hdr_size) {
 546                         IWL_ERR(drv, "File size too small!\n");
 547                         return -EINVAL;
 548                 }
 549                 build = le32_to_cpu(ucode->u.v2.build);
 550                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 551                              le32_to_cpu(ucode->u.v2.inst_size));
 552                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 553                              le32_to_cpu(ucode->u.v2.data_size));
 554                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 555                              le32_to_cpu(ucode->u.v2.init_size));
 556                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 557                              le32_to_cpu(ucode->u.v2.init_data_size));
 558                 src = ucode->u.v2.data;
 559                 break;
 560         case 0:
 561         case 1:
 562         case 2:
 563                 hdr_size = 24;
 564                 if (ucode_raw->size < hdr_size) {
 565                         IWL_ERR(drv, "File size too small!\n");
 566                         return -EINVAL;
 567                 }
 568                 build = 0;
 569                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 570                              le32_to_cpu(ucode->u.v1.inst_size));
 571                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 572                              le32_to_cpu(ucode->u.v1.data_size));
 573                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 574                              le32_to_cpu(ucode->u.v1.init_size));
 575                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 576                              le32_to_cpu(ucode->u.v1.init_data_size));
 577                 src = ucode->u.v1.data;
 578                 break;
 579         }
 580
 581         if (build)
 582                 sprintf(buildstr, " build %u", build);
 583         else
 584                 buildstr[0] = '\0';
 585
 586         snprintf(drv->fw.fw_version,
 587                  sizeof(drv->fw.fw_version),
 588                  "%u.%u.%u.%u%s",
 589                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 590                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 591                  IWL_UCODE_API(drv->fw.ucode_ver),
 592                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 593                  buildstr);
 594
 595         /* Verify size of file vs. image size info in file's header */
 596
 597         if (ucode_raw->size != hdr_size +
 598             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 599             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 600             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 601             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 602
 603                 IWL_ERR(drv,
 604                         "uCode file size %d does not match expected size\n",
 605                         (int)ucode_raw->size);
 606                 return -EINVAL;
 607         }
 608
 609
 610         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 611         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 612         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 613                        IWLAGN_RTC_INST_LOWER_BOUND);
 614         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 615         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 616         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 617                        IWLAGN_RTC_DATA_LOWER_BOUND);
 618         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 619         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 620         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 621                        IWLAGN_RTC_INST_LOWER_BOUND);
 622         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 623         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 624         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 625                        IWLAGN_RTC_DATA_LOWER_BOUND);
 626         return 0;
 627 }
 628
 629 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 630                                 const struct firmware *ucode_raw,
 631                                 struct iwl_firmware_pieces *pieces,
 632                                 struct iwl_ucode_capabilities *capa,
 633                                 bool *usniffer_images)
 634 {
 635         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 636         struct iwl_ucode_tlv *tlv;
 637         size_t len = ucode_raw->size;
 638         const u8 *data;
 639         u32 tlv_len;
 640         u32 usniffer_img;
 641         enum iwl_ucode_tlv_type tlv_type;
 642         const u8 *tlv_data;
 643         char buildstr[25];
 644         u32 build, paging_mem_size;
 645         int num_of_cpus;
 646         bool usniffer_req = false;
 647         bool gscan_capa = false;
 648
 649         if (len < sizeof(*ucode)) {
 650                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 651                 return -EINVAL;
 652         }
 653
 654         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 655                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 656                         le32_to_cpu(ucode->magic));
 657                 return -EINVAL;
 658         }
 659
 660         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 661         memcpy(drv->fw.human_readable, ucode->human_readable,
 662                sizeof(drv->fw.human_readable));
 663         build = le32_to_cpu(ucode->build);
 664
 665         if (build)
 666                 sprintf(buildstr, " build %u", build);
 667         else
 668                 buildstr[0] = '\0';
 669
 670         snprintf(drv->fw.fw_version,
 671                  sizeof(drv->fw.fw_version),
 672                  "%u.%u.%u.%u%s",
 673                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 674                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 675                  IWL_UCODE_API(drv->fw.ucode_ver),
 676                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 677                  buildstr);
 678
 679         data = ucode->data;
 680
 681         len -= sizeof(*ucode);
 682
 683         while (len >= sizeof(*tlv)) {
 684                 len -= sizeof(*tlv);
 685                 tlv = (void *)data;
 686
 687                 tlv_len = le32_to_cpu(tlv->length);
 688                 tlv_type = le32_to_cpu(tlv->type);
 689                 tlv_data = tlv->data;
 690
 691                 if (len < tlv_len) {
 692                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 693                                 len, tlv_len);
 694                         return -EINVAL;
 695                 }
 696                 len -= ALIGN(tlv_len, 4);
 697                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 698
 699                 switch (tlv_type) {
 700                 case IWL_UCODE_TLV_INST:
 701                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 702                                      IWL_UCODE_SECTION_INST, tlv_data);
 703                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 704                                      IWL_UCODE_SECTION_INST, tlv_len);
 705                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 706                                        IWL_UCODE_SECTION_INST,
 707                                        IWLAGN_RTC_INST_LOWER_BOUND);
 708                         break;
 709                 case IWL_UCODE_TLV_DATA:
 710                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 711                                      IWL_UCODE_SECTION_DATA, tlv_data);
 712                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 713                                      IWL_UCODE_SECTION_DATA, tlv_len);
 714                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 715                                        IWL_UCODE_SECTION_DATA,
 716                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 717                         break;
 718                 case IWL_UCODE_TLV_INIT:
 719                         set_sec_data(pieces, IWL_UCODE_INIT,
 720                                      IWL_UCODE_SECTION_INST, tlv_data);
 721                         set_sec_size(pieces, IWL_UCODE_INIT,
 722                                      IWL_UCODE_SECTION_INST, tlv_len);
 723                         set_sec_offset(pieces, IWL_UCODE_INIT,
 724                                        IWL_UCODE_SECTION_INST,
 725                                        IWLAGN_RTC_INST_LOWER_BOUND);
 726                         break;
 727                 case IWL_UCODE_TLV_INIT_DATA:
 728                         set_sec_data(pieces, IWL_UCODE_INIT,
 729                                      IWL_UCODE_SECTION_DATA, tlv_data);
 730                         set_sec_size(pieces, IWL_UCODE_INIT,
 731                                      IWL_UCODE_SECTION_DATA, tlv_len);
 732                         set_sec_offset(pieces, IWL_UCODE_INIT,
 733                                        IWL_UCODE_SECTION_DATA,
 734                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 735                         break;
 736                 case IWL_UCODE_TLV_BOOT:
 737                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 738                         break;
 739                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 740                         if (tlv_len != sizeof(u32))
 741                                 goto invalid_tlv_len;
 742                         capa->max_probe_length =
 743                                         le32_to_cpup((__le32 *)tlv_data);
 744                         break;
 745                 case IWL_UCODE_TLV_PAN:
 746                         if (tlv_len)
 747                                 goto invalid_tlv_len;
 748                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 749                         break;
 750                 case IWL_UCODE_TLV_FLAGS:
 751                         /* must be at least one u32 */
 752                         if (tlv_len < sizeof(u32))
 753                                 goto invalid_tlv_len;
 754                         /* and a proper number of u32s */
 755                         if (tlv_len % sizeof(u32))
 756                                 goto invalid_tlv_len;
 757                         /*
 758                          * This driver only reads the first u32 as
 759                          * right now no more features are defined,
 760                          * if that changes then either the driver
 761                          * will not work with the new firmware, or
 762                          * it'll not take advantage of new features.
 763                          */
 764                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 765                         break;
 766                 case IWL_UCODE_TLV_API_CHANGES_SET:
 767                         if (tlv_len != sizeof(struct iwl_ucode_api))
 768                                 goto invalid_tlv_len;
 769                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 770                                 goto tlv_error;
 771                         break;
 772                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 773                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 774                                 goto invalid_tlv_len;
 775                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 776                                 goto tlv_error;
 777                         break;
 778                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 779                         if (tlv_len != sizeof(u32))
 780                                 goto invalid_tlv_len;
 781                         pieces->init_evtlog_ptr =
 782                                         le32_to_cpup((__le32 *)tlv_data);
 783                         break;
 784                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 785                         if (tlv_len != sizeof(u32))
 786                                 goto invalid_tlv_len;
 787                         pieces->init_evtlog_size =
 788                                         le32_to_cpup((__le32 *)tlv_data);
 789                         break;
 790                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 791                         if (tlv_len != sizeof(u32))
 792                                 goto invalid_tlv_len;
 793                         pieces->init_errlog_ptr =
 794                                         le32_to_cpup((__le32 *)tlv_data);
 795                         break;
 796                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 797                         if (tlv_len != sizeof(u32))
 798                                 goto invalid_tlv_len;
 799                         pieces->inst_evtlog_ptr =
 800                                         le32_to_cpup((__le32 *)tlv_data);
 801                         break;
 802                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 803                         if (tlv_len != sizeof(u32))
 804                                 goto invalid_tlv_len;
 805                         pieces->inst_evtlog_size =
 806                                         le32_to_cpup((__le32 *)tlv_data);
 807                         break;
 808                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 809                         if (tlv_len != sizeof(u32))
 810                                 goto invalid_tlv_len;
 811                         pieces->inst_errlog_ptr =
 812                                         le32_to_cpup((__le32 *)tlv_data);
 813                         break;
 814                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 815                         if (tlv_len)
 816                                 goto invalid_tlv_len;
 817                         drv->fw.enhance_sensitivity_table = true;
 818                         break;
 819                 case IWL_UCODE_TLV_WOWLAN_INST:
 820                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 821                                      IWL_UCODE_SECTION_INST, tlv_data);
 822                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 823                                      IWL_UCODE_SECTION_INST, tlv_len);
 824                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 825                                        IWL_UCODE_SECTION_INST,
 826                                        IWLAGN_RTC_INST_LOWER_BOUND);
 827                         break;
 828                 case IWL_UCODE_TLV_WOWLAN_DATA:
 829                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 830                                      IWL_UCODE_SECTION_DATA, tlv_data);
 831                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 832                                      IWL_UCODE_SECTION_DATA, tlv_len);
 833                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 834                                        IWL_UCODE_SECTION_DATA,
 835                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 836                         break;
 837                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 838                         if (tlv_len != sizeof(u32))
 839                                 goto invalid_tlv_len;
 840                         capa->standard_phy_calibration_size =
 841                                         le32_to_cpup((__le32 *)tlv_data);
 842                         break;
 843                  case IWL_UCODE_TLV_SEC_RT:
 844                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 845                                             tlv_len);
 846                         drv->fw.type = IWL_FW_MVM;
 847                         break;
 848                 case IWL_UCODE_TLV_SEC_INIT:
 849                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 850                                             tlv_len);
 851                         drv->fw.type = IWL_FW_MVM;
 852                         break;
 853                 case IWL_UCODE_TLV_SEC_WOWLAN:
 854                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 855                                             tlv_len);
 856                         drv->fw.type = IWL_FW_MVM;
 857                         break;
 858                 case IWL_UCODE_TLV_DEF_CALIB:
 859                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 860                                 goto invalid_tlv_len;
 861                         if (iwl_set_default_calib(drv, tlv_data))
 862                                 goto tlv_error;
 863                         break;
 864                 case IWL_UCODE_TLV_PHY_SKU:
 865                         if (tlv_len != sizeof(u32))
 866                                 goto invalid_tlv_len;
 867                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 868                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 869                                                 FW_PHY_CFG_TX_CHAIN) >>
 870                                                 FW_PHY_CFG_TX_CHAIN_POS;
 871                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 872                                                 FW_PHY_CFG_RX_CHAIN) >>
 873                                                 FW_PHY_CFG_RX_CHAIN_POS;
 874                         break;
 875                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 876                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 877                                             tlv_len);
 878                         drv->fw.type = IWL_FW_MVM;
 879                         break;
 880                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 881                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 882                                             tlv_len);
 883                         drv->fw.type = IWL_FW_MVM;
 884                         break;
 885                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 886                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 887                                             tlv_len);
 888                         drv->fw.type = IWL_FW_MVM;
 889                         break;
 890                 case IWL_UCODE_TLV_NUM_OF_CPU:
 891                         if (tlv_len != sizeof(u32))
 892                                 goto invalid_tlv_len;
 893                         num_of_cpus =
 894                                 le32_to_cpup((__le32 *)tlv_data);
 895
 896                         if (num_of_cpus == 2) {
 897                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 898                                         true;
 899                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 900                                         true;
 901                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 902                                         true;
 903                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 904                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 905                                 return -EINVAL;
 906                         }
 907                         break;
 908                 case IWL_UCODE_TLV_CSCHEME:
 909                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 910                                 goto invalid_tlv_len;
 911                         break;
 912                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 913                         if (tlv_len != sizeof(u32))
 914                                 goto invalid_tlv_len;
 915                         capa->n_scan_channels =
 916                                 le32_to_cpup((__le32 *)tlv_data);
 917                         break;
 918                 case IWL_UCODE_TLV_FW_VERSION: {
 919                         __le32 *ptr = (void *)tlv_data;
 920                         u32 major, minor;
 921                         u8 local_comp;
 922
 923                         if (tlv_len != sizeof(u32) * 3)
 924                                 goto invalid_tlv_len;
 925
 926                         major = le32_to_cpup(ptr++);
 927                         minor = le32_to_cpup(ptr++);
 928                         local_comp = le32_to_cpup(ptr);
 929
 930                         snprintf(drv->fw.fw_version,
 931                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 932                                  major, minor, local_comp);
 933                         break;
 934                         }
 935                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 936                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 937
 938                         if (pieces->dbg_dest_tlv) {
 939                                 IWL_ERR(drv,
 940                                         "dbg destination ignored, already exists\n");
 941                                 break;
 942                         }
 943
 944                         pieces->dbg_dest_tlv = dest;
 945                         IWL_INFO(drv, "Found debug destination: %s\n",
 946                                  get_fw_dbg_mode_string(dest->monitor_mode));
 947
 948                         drv->fw.dbg_dest_reg_num =
 949                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 950                                                    reg_ops);
 951                         drv->fw.dbg_dest_reg_num /=
 952                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 953
 954                         break;
 955                         }
 956                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 957                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 958
 959                         if (!pieces->dbg_dest_tlv) {
 960                                 IWL_ERR(drv,
 961                                         "Ignore dbg config %d - no destination configured\n",
 962                                         conf->id);
 963                                 break;
 964                         }
 965
 966                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 967                                 IWL_ERR(drv,
 968                                         "Skip unknown configuration: %d\n",
 969                                         conf->id);
 970                                 break;
 971                         }
 972
 973                         if (pieces->dbg_conf_tlv[conf->id]) {
 974                                 IWL_ERR(drv,
 975                                         "Ignore duplicate dbg config %d\n",
 976                                         conf->id);
 977                                 break;
 978                         }
 979
 980                         if (conf->usniffer)
 981                                 usniffer_req = true;
 982
 983                         IWL_INFO(drv, "Found debug configuration: %d\n",
 984                                  conf->id);
 985
 986                         pieces->dbg_conf_tlv[conf->id] = conf;
 987                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 988                         break;
 989                         }
 990                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 991                         struct iwl_fw_dbg_trigger_tlv *trigger =
 992                                 (void *)tlv_data;
 993                         u32 trigger_id = le32_to_cpu(trigger->id);
 994
 995                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 996                                 IWL_ERR(drv,
 997                                         "Skip unknown trigger: %u\n",
 998                                         trigger->id);
 999                                 break;
1000                         }
1001
1002                         if (pieces->dbg_trigger_tlv[trigger_id]) {
1003                                 IWL_ERR(drv,
1004                                         "Ignore duplicate dbg trigger %u\n",
1005                                         trigger->id);
1006                                 break;
1007                         }
1008
1009                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1010
1011                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1012                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1013                         break;
1014                         }
1015                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1016                         *usniffer_images = true;
1017                         iwl_store_ucode_sec(pieces, tlv_data,
1018                                             IWL_UCODE_REGULAR_USNIFFER,
1019                                             tlv_len);
1020                         break;
1021                 case IWL_UCODE_TLV_PAGING:
1022                         if (tlv_len != sizeof(u32))
1023                                 goto invalid_tlv_len;
1024                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1025
1026                         IWL_DEBUG_FW(drv,
1027                                      "Paging: paging enabled (size = %u bytes)\n",
1028                                      paging_mem_size);
1029
1030                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1031                                 IWL_ERR(drv,
1032                                         "Paging: driver supports up to %lu bytes for paging image\n",
1033                                         MAX_PAGING_IMAGE_SIZE);
1034                                 return -EINVAL;
1035                         }
1036
1037                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1038                                 IWL_ERR(drv,
1039                                         "Paging: image isn't multiple %lu\n",
1040                                         FW_PAGING_SIZE);
1041                                 return -EINVAL;
1042                         }
1043
1044                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1045                                 paging_mem_size;
1046                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1047                         drv->fw.img[usniffer_img].paging_mem_size =
1048                                 paging_mem_size;
1049                         break;
1050                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1051                         if (tlv_len != sizeof(u32))
1052                                 goto invalid_tlv_len;
1053                         drv->fw.sdio_adma_addr =
1054                                 le32_to_cpup((__le32 *)tlv_data);
1055                         break;
1056                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1057                         /*
1058                          * Don't return an error in case of a shorter tlv_len
1059                          * to enable loading of FW that has an old format
1060                          * of GSCAN capabilities TLV.
1061                          */
1062                         if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1063                                 break;
1064
1065                         iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1066                         gscan_capa = true;
1067                         break;
1068                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1069                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1070                                 (void *)tlv_data;
1071                         u32 type;
1072                         size_t size;
1073                         struct iwl_fw_dbg_mem_seg_tlv *n;
1074
1075                         if (tlv_len != (sizeof(*dbg_mem)))
1076                                 goto invalid_tlv_len;
1077
1078                         type = le32_to_cpu(dbg_mem->data_type);
1079
1080                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1081                                        dbg_mem->data_type);
1082
1083                         switch (type & FW_DBG_MEM_TYPE_MASK) {
1084                         case FW_DBG_MEM_TYPE_REGULAR:
1085                         case FW_DBG_MEM_TYPE_PRPH:
1086                                 /* we know how to handle these */
1087                                 break;
1088                         default:
1089                                 IWL_ERR(drv,
1090                                         "Found debug memory segment with invalid type: 0x%x\n",
1091                                         type);
1092                                 return -EINVAL;
1093                         }
1094
1095                         size = sizeof(*pieces->dbg_mem_tlv) *
1096                                (pieces->n_dbg_mem_tlv + 1);
1097                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1098                         if (!n)
1099                                 return -ENOMEM;
1100                         pieces->dbg_mem_tlv = n;
1101                         pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem;
1102                         pieces->n_dbg_mem_tlv++;
1103                         break;
1104                         }
1105                 default:
1106                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1107                         break;
1108                 }
1109         }
1110
1111         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1112             usniffer_req && !*usniffer_images) {
1113                 IWL_ERR(drv,
1114                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1115                 return -EINVAL;
1116         }
1117
1118         if (len) {
1119                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1120                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1121                 return -EINVAL;
1122         }
1123
1124         /*
1125          * If ucode advertises that it supports GSCAN but GSCAN
1126          * capabilities TLV is not present, or if it has an old format,
1127          * warn and continue without GSCAN.
1128          */
1129         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1130             !gscan_capa) {
1131                 IWL_DEBUG_INFO(drv,
1132                                "GSCAN is supported but capabilities TLV is unavailable\n");
1133                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1134                             capa->_capa);
1135         }
1136
1137         return 0;
1138
1139  invalid_tlv_len:
1140         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1141  tlv_error:
1142         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1143
1144         return -EINVAL;
1145 }
1146
1147 static int iwl_alloc_ucode(struct iwl_drv *drv,
1148                            struct iwl_firmware_pieces *pieces,
1149                            enum iwl_ucode_type type)
1150 {
1151         int i;
1152         struct fw_desc *sec;
1153
1154         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1155         if (!sec)
1156                 return -ENOMEM;
1157         drv->fw.img[type].sec = sec;
1158         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1159
1160         for (i = 0; i < pieces->img[type].sec_counter; i++)
1161                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1162                         return -ENOMEM;
1163
1164         return 0;
1165 }
1166
1167 static int validate_sec_sizes(struct iwl_drv *drv,
1168                               struct iwl_firmware_pieces *pieces,
1169                               const struct iwl_cfg *cfg)
1170 {
1171         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1172                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1173                              IWL_UCODE_SECTION_INST));
1174         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1175                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1176                              IWL_UCODE_SECTION_DATA));
1177         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1178                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1179         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1180                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1181
1182         /* Verify that uCode images will fit in card's SRAM. */
1183         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1184             cfg->max_inst_size) {
1185                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1186                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1187                                      IWL_UCODE_SECTION_INST));
1188                 return -1;
1189         }
1190
1191         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1192             cfg->max_data_size) {
1193                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1194                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1195                                      IWL_UCODE_SECTION_DATA));
1196                 return -1;
1197         }
1198
1199         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1200              cfg->max_inst_size) {
1201                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1202                         get_sec_size(pieces, IWL_UCODE_INIT,
1203                                      IWL_UCODE_SECTION_INST));
1204                 return -1;
1205         }
1206
1207         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1208             cfg->max_data_size) {
1209                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1210                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1211                                      IWL_UCODE_SECTION_DATA));
1212                 return -1;
1213         }
1214         return 0;
1215 }
1216
1217 static struct iwl_op_mode *
1218 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1219 {
1220         const struct iwl_op_mode_ops *ops = op->ops;
1221         struct dentry *dbgfs_dir = NULL;
1222         struct iwl_op_mode *op_mode = NULL;
1223
1224 #ifdef CONFIG_IWLWIFI_DEBUGFS
1225         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1226                                                 drv->dbgfs_drv);
1227         if (!drv->dbgfs_op_mode) {
1228                 IWL_ERR(drv,
1229                         "failed to create opmode debugfs directory\n");
1230                 return op_mode;
1231         }
1232         dbgfs_dir = drv->dbgfs_op_mode;
1233 #endif
1234
1235         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1236
1237 #ifdef CONFIG_IWLWIFI_DEBUGFS
1238         if (!op_mode) {
1239                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1240                 drv->dbgfs_op_mode = NULL;
1241         }
1242 #endif
1243
1244         return op_mode;
1245 }
1246
1247 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1248 {
1249         /* op_mode can be NULL if its start failed */
1250         if (drv->op_mode) {
1251                 iwl_op_mode_stop(drv->op_mode);
1252                 drv->op_mode = NULL;
1253
1254 #ifdef CONFIG_IWLWIFI_DEBUGFS
1255                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1256                 drv->dbgfs_op_mode = NULL;
1257 #endif
1258         }
1259 }
1260
1261 /**
1262  * iwl_req_fw_callback - callback when firmware was loaded
1263  *
1264  * If loaded successfully, copies the firmware into buffers
1265  * for the card to fetch (via DMA).
1266  */
1267 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1268 {
1269         struct iwl_drv *drv = context;
1270         struct iwl_fw *fw = &drv->fw;
1271         struct iwl_ucode_header *ucode;
1272         struct iwlwifi_opmode_table *op;
1273         int err;
1274         struct iwl_firmware_pieces *pieces;
1275         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1276         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1277         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1278         u32 api_ver;
1279         int i;
1280         bool load_module = false;
1281         bool usniffer_images = false;
1282
1283         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1284         fw->ucode_capa.standard_phy_calibration_size =
1285                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1286         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1287
1288         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1289         if (!pieces)
1290                 goto out_free_fw;
1291
1292         if (!ucode_raw)
1293                 goto try_again;
1294
1295         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1296                        drv->firmware_name, ucode_raw->size);
1297
1298         /* Make sure that we got at least the API version number */
1299         if (ucode_raw->size < 4) {
1300                 IWL_ERR(drv, "File size way too small!\n");
1301                 goto try_again;
1302         }
1303
1304         /* Data from ucode file:  header followed by uCode images */
1305         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1306
1307         if (ucode->ver)
1308                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1309         else
1310                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1311                                              &fw->ucode_capa, &usniffer_images);
1312
1313         if (err)
1314                 goto try_again;
1315
1316         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1317                 api_ver = drv->fw.ucode_ver;
1318         else
1319                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1320
1321         /*
1322          * api_ver should match the api version forming part of the
1323          * firmware filename ... but we don't check for that and only rely
1324          * on the API version read from firmware header from here on forward
1325          */
1326         if (api_ver < api_min || api_ver > api_max) {
1327                 IWL_ERR(drv,
1328                         "Driver unable to support your firmware API. "
1329                         "Driver supports v%u, firmware is v%u.\n",
1330                         api_max, api_ver);
1331                 goto try_again;
1332         }
1333
1334         /*
1335          * In mvm uCode there is no difference between data and instructions
1336          * sections.
1337          */
1338         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1339                                                          drv->trans->cfg))
1340                 goto try_again;
1341
1342         /* Allocate ucode buffers for card's bus-master loading ... */
1343
1344         /* Runtime instructions and 2 copies of data:
1345          * 1) unmodified from disk
1346          * 2) backup cache for save/restore during power-downs */
1347         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1348                 if (iwl_alloc_ucode(drv, pieces, i))
1349                         goto out_free_fw;
1350
1351         if (pieces->dbg_dest_tlv) {
1352                 drv->fw.dbg_dest_tlv =
1353                         kmemdup(pieces->dbg_dest_tlv,
1354                                 sizeof(*pieces->dbg_dest_tlv) +
1355                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1356                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1357
1358                 if (!drv->fw.dbg_dest_tlv)
1359                         goto out_free_fw;
1360         }
1361
1362         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1363                 if (pieces->dbg_conf_tlv[i]) {
1364                         drv->fw.dbg_conf_tlv_len[i] =
1365                                 pieces->dbg_conf_tlv_len[i];
1366                         drv->fw.dbg_conf_tlv[i] =
1367                                 kmemdup(pieces->dbg_conf_tlv[i],
1368                                         drv->fw.dbg_conf_tlv_len[i],
1369                                         GFP_KERNEL);
1370                         if (!drv->fw.dbg_conf_tlv[i])
1371                                 goto out_free_fw;
1372                 }
1373         }
1374
1375         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1376
1377         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1378                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1379         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1380         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1381                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1382         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1383                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1384         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1385                 sizeof(struct iwl_fw_dbg_trigger_stats);
1386         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1387                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1388         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1389                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1390         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1391                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1392         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1393                 sizeof(struct iwl_fw_dbg_trigger_ba);
1394         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1395                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1396
1397         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1398                 if (pieces->dbg_trigger_tlv[i]) {
1399                         /*
1400                          * If the trigger isn't long enough, WARN and exit.
1401                          * Someone is trying to debug something and he won't
1402                          * be able to catch the bug he is trying to chase.
1403                          * We'd better be noisy to be sure he knows what's
1404                          * going on.
1405                          */
1406                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1407                                     (trigger_tlv_sz[i] +
1408                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1409                                 goto out_free_fw;
1410                         drv->fw.dbg_trigger_tlv_len[i] =
1411                                 pieces->dbg_trigger_tlv_len[i];
1412                         drv->fw.dbg_trigger_tlv[i] =
1413                                 kmemdup(pieces->dbg_trigger_tlv[i],
1414                                         drv->fw.dbg_trigger_tlv_len[i],
1415                                         GFP_KERNEL);
1416                         if (!drv->fw.dbg_trigger_tlv[i])
1417                                 goto out_free_fw;
1418                 }
1419         }
1420
1421         /* Now that we can no longer fail, copy information */
1422
1423         drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv;
1424         pieces->dbg_mem_tlv = NULL;
1425         drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv;
1426
1427         /*
1428          * The (size - 16) / 12 formula is based on the information recorded
1429          * for each event, which is of mode 1 (including timestamp) for all
1430          * new microcodes that include this information.
1431          */
1432         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1433         if (pieces->init_evtlog_size)
1434                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1435         else
1436                 fw->init_evtlog_size =
1437                         drv->trans->cfg->base_params->max_event_log_size;
1438         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1439         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1440         if (pieces->inst_evtlog_size)
1441                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1442         else
1443                 fw->inst_evtlog_size =
1444                         drv->trans->cfg->base_params->max_event_log_size;
1445         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1446
1447         /*
1448          * figure out the offset of chain noise reset and gain commands
1449          * base on the size of standard phy calibration commands table size
1450          */
1451         if (fw->ucode_capa.standard_phy_calibration_size >
1452             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1453                 fw->ucode_capa.standard_phy_calibration_size =
1454                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1455
1456         /* We have our copies now, allow OS release its copies */
1457         release_firmware(ucode_raw);
1458
1459         mutex_lock(&iwlwifi_opmode_table_mtx);
1460         switch (fw->type) {
1461         case IWL_FW_DVM:
1462                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1463                 break;
1464         default:
1465                 WARN(1, "Invalid fw type %d\n", fw->type);
1466         case IWL_FW_MVM:
1467                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1468                 break;
1469         }
1470
1471         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1472                  drv->fw.fw_version, op->name);
1473
1474         /* add this device to the list of devices using this op_mode */
1475         list_add_tail(&drv->list, &op->drv);
1476
1477         if (op->ops) {
1478                 drv->op_mode = _iwl_op_mode_start(drv, op);
1479
1480                 if (!drv->op_mode) {
1481                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1482                         goto out_unbind;
1483                 }
1484         } else {
1485                 load_module = true;
1486         }
1487         mutex_unlock(&iwlwifi_opmode_table_mtx);
1488
1489         /*
1490          * Complete the firmware request last so that
1491          * a driver unbind (stop) doesn't run while we
1492          * are doing the start() above.
1493          */
1494         complete(&drv->request_firmware_complete);
1495
1496         /*
1497          * Load the module last so we don't block anything
1498          * else from proceeding if the module fails to load
1499          * or hangs loading.
1500          */
1501         if (load_module) {
1502                 request_module("%s", op->name);
1503 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1504                 if (err)
1505                         IWL_ERR(drv,
1506                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1507                                 op->name, err);
1508 #endif
1509         }
1510         goto free;
1511
1512  try_again:
1513         /* try next, if any */
1514         release_firmware(ucode_raw);
1515         if (iwl_request_firmware(drv, false))
1516                 goto out_unbind;
1517         goto free;
1518
1519  out_free_fw:
1520         iwl_dealloc_ucode(drv);
1521         release_firmware(ucode_raw);
1522  out_unbind:
1523         complete(&drv->request_firmware_complete);
1524         device_release_driver(drv->trans->dev);
1525  free:
1526         if (pieces) {
1527                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1528                         kfree(pieces->img[i].sec);
1529                 kfree(pieces->dbg_mem_tlv);
1530                 kfree(pieces);
1531         }
1532 }
1533
1534 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1535 {
1536         struct iwl_drv *drv;
1537         int ret;
1538
1539         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1540         if (!drv) {
1541                 ret = -ENOMEM;
1542                 goto err;
1543         }
1544
1545         drv->trans = trans;
1546         drv->dev = trans->dev;
1547
1548         init_completion(&drv->request_firmware_complete);
1549         INIT_LIST_HEAD(&drv->list);
1550
1551 #ifdef CONFIG_IWLWIFI_DEBUGFS
1552         /* Create the device debugfs entries. */
1553         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1554                                             iwl_dbgfs_root);
1555
1556         if (!drv->dbgfs_drv) {
1557                 IWL_ERR(drv, "failed to create debugfs directory\n");
1558                 ret = -ENOMEM;
1559                 goto err_free_drv;
1560         }
1561
1562         /* Create transport layer debugfs dir */
1563         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1564
1565         if (!drv->trans->dbgfs_dir) {
1566                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1567                 ret = -ENOMEM;
1568                 goto err_free_dbgfs;
1569         }
1570 #endif
1571
1572         ret = iwl_request_firmware(drv, true);
1573         if (ret) {
1574                 IWL_ERR(trans, "Couldn't request the fw\n");
1575                 goto err_fw;
1576         }
1577
1578         return drv;
1579
1580 err_fw:
1581 #ifdef CONFIG_IWLWIFI_DEBUGFS
1582 err_free_dbgfs:
1583         debugfs_remove_recursive(drv->dbgfs_drv);
1584 err_free_drv:
1585 #endif
1586         kfree(drv);
1587 err:
1588         return ERR_PTR(ret);
1589 }
1590
1591 void iwl_drv_stop(struct iwl_drv *drv)
1592 {
1593         wait_for_completion(&drv->request_firmware_complete);
1594
1595         _iwl_op_mode_stop(drv);
1596
1597         iwl_dealloc_ucode(drv);
1598
1599         mutex_lock(&iwlwifi_opmode_table_mtx);
1600         /*
1601          * List is empty (this item wasn't added)
1602          * when firmware loading failed -- in that
1603          * case we can't remove it from any list.
1604          */
1605         if (!list_empty(&drv->list))
1606                 list_del(&drv->list);
1607         mutex_unlock(&iwlwifi_opmode_table_mtx);
1608
1609 #ifdef CONFIG_IWLWIFI_DEBUGFS
1610         debugfs_remove_recursive(drv->dbgfs_drv);
1611 #endif
1612
1613         kfree(drv);
1614 }
1615
1616
1617 /* shared module parameters */
1618 struct iwl_mod_params iwlwifi_mod_params = {
1619         .fw_restart = true,
1620         .bt_coex_active = true,
1621         .power_level = IWL_POWER_INDEX_1,
1622         .d0i3_disable = true,
1623         .d0i3_timeout = 1000,
1624         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1625         /* the rest are 0 by default */
1626 };
1627 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1628
1629 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1630 {
1631         int i;
1632         struct iwl_drv *drv;
1633         struct iwlwifi_opmode_table *op;
1634
1635         mutex_lock(&iwlwifi_opmode_table_mtx);
1636         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1637                 op = &iwlwifi_opmode_table[i];
1638                 if (strcmp(op->name, name))
1639                         continue;
1640                 op->ops = ops;
1641                 /* TODO: need to handle exceptional case */
1642                 list_for_each_entry(drv, &op->drv, list)
1643                         drv->op_mode = _iwl_op_mode_start(drv, op);
1644
1645                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1646                 return 0;
1647         }
1648         mutex_unlock(&iwlwifi_opmode_table_mtx);
1649         return -EIO;
1650 }
1651 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1652
1653 void iwl_opmode_deregister(const char *name)
1654 {
1655         int i;
1656         struct iwl_drv *drv;
1657
1658         mutex_lock(&iwlwifi_opmode_table_mtx);
1659         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1660                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1661                         continue;
1662                 iwlwifi_opmode_table[i].ops = NULL;
1663
1664                 /* call the stop routine for all devices */
1665                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1666                         _iwl_op_mode_stop(drv);
1667
1668                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1669                 return;
1670         }
1671         mutex_unlock(&iwlwifi_opmode_table_mtx);
1672 }
1673 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1674
1675 static int __init iwl_drv_init(void)
1676 {
1677         int i;
1678
1679         mutex_init(&iwlwifi_opmode_table_mtx);
1680
1681         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1682                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1683
1684         pr_info(DRV_DESCRIPTION "\n");
1685         pr_info(DRV_COPYRIGHT "\n");
1686
1687 #ifdef CONFIG_IWLWIFI_DEBUGFS
1688         /* Create the root of iwlwifi debugfs subsystem. */
1689         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1690
1691         if (!iwl_dbgfs_root)
1692                 return -EFAULT;
1693 #endif
1694
1695         return iwl_pci_register_driver();
1696 }
1697 module_init(iwl_drv_init);
1698
1699 static void __exit iwl_drv_exit(void)
1700 {
1701         iwl_pci_unregister_driver();
1702
1703 #ifdef CONFIG_IWLWIFI_DEBUGFS
1704         debugfs_remove_recursive(iwl_dbgfs_root);
1705 #endif
1706 }
1707 module_exit(iwl_drv_exit);
1708
1709 #ifdef CONFIG_IWLWIFI_DEBUG
1710 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1711                    S_IRUGO | S_IWUSR);
1712 MODULE_PARM_DESC(debug, "debug output mask");
1713 #endif
1714
1715 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, S_IRUGO);
1716 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1717 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1718 MODULE_PARM_DESC(11n_disable,
1719         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1720 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1721                    int, S_IRUGO);
1722 MODULE_PARM_DESC(amsdu_size,
1723                  "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)");
1724 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, S_IRUGO);
1725 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1726
1727 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
1728                    int, S_IRUGO);
1729 MODULE_PARM_DESC(antenna_coupling,
1730                  "specify antenna coupling in dB (default: 0 dB)");
1731
1732 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1733 MODULE_PARM_DESC(nvm_file, "NVM file name");
1734
1735 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1736                    bool, S_IRUGO);
1737 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1738
1739 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1740                    bool, S_IRUGO);
1741 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1742
1743 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1744                    uint, S_IRUGO | S_IWUSR);
1745 MODULE_PARM_DESC(uapsd_disable,
1746                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1747
1748 /*
1749  * set bt_coex_active to true, uCode will do kill/defer
1750  * every time the priority line is asserted (BT is sending signals on the
1751  * priority line in the PCIx).
1752  * set bt_coex_active to false, uCode will ignore the BT activity and
1753  * perform the normal operation
1754  *
1755  * User might experience transmit issue on some platform due to WiFi/BT
1756  * co-exist problem. The possible behaviors are:
1757  *   Able to scan and finding all the available AP
1758  *   Not able to associate with any AP
1759  * On those platforms, WiFi communication can be restored by set
1760  * "bt_coex_active" module parameter to "false"
1761  *
1762  * default: bt_coex_active = true (BT_COEX_ENABLE)
1763  */
1764 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1765                 bool, S_IRUGO);
1766 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1767
1768 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1769 MODULE_PARM_DESC(led_mode, "0=system default, "
1770                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1771
1772 module_param_named(power_save, iwlwifi_mod_params.power_save,
1773                 bool, S_IRUGO);
1774 MODULE_PARM_DESC(power_save,
1775                  "enable WiFi power management (default: disable)");
1776
1777 module_param_named(power_level, iwlwifi_mod_params.power_level,
1778                 int, S_IRUGO);
1779 MODULE_PARM_DESC(power_level,
1780                  "default power save level (range from 1 - 5, default: 1)");
1781
1782 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1783 MODULE_PARM_DESC(fw_monitor,
1784                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1785
1786 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout,
1787                    uint, S_IRUGO);
1788 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1789
1790 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1791                    S_IRUGO);
1792 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");