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 "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  * @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_8000 &&
 219             CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP)
 220                 fw_pre_name = cfg->fw_name_pre_next_step;
 221         else
 222                 fw_pre_name = cfg->fw_name_pre;
 223
 224         if (first) {
 225                 drv->fw_index = cfg->ucode_api_max;
 226                 sprintf(tag, "%d", drv->fw_index);
 227         } else {
 228                 drv->fw_index--;
 229                 sprintf(tag, "%d", drv->fw_index);
 230         }
 231
 232         if (drv->fw_index < cfg->ucode_api_min) {
 233                 IWL_ERR(drv, "no suitable firmware found!\n");
 234
 235                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 236                         IWL_ERR(drv, "%s%d is required\n", fw_pre_name,
 237                                 cfg->ucode_api_max);
 238                 } else {
 239                         IWL_ERR(drv, "minimum version required: %s%d\n",
 240                                 fw_pre_name,
 241                                 cfg->ucode_api_min);
 242                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 243                                 fw_pre_name,
 244                                 cfg->ucode_api_max);
 245                 }
 246
 247                 IWL_ERR(drv,
 248                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 249                 return -ENOENT;
 250         }
 251
 252         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 253                  fw_pre_name, tag);
 254
 255         IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
 256                        drv->firmware_name);
 257
 258         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 259                                        drv->trans->dev,
 260                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 261 }
 262
 263 struct fw_img_parsing {
 264         struct fw_sec *sec;
 265         int sec_counter;
 266 };
 267
 268 /*
 269  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 270  */
 271 struct fw_sec_parsing {
 272         __le32 offset;
 273         const u8 data[];
 274 } __packed;
 275
 276 /**
 277  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 278  *
 279  * @ucode_type: the uCode to which the following default calib relates.
 280  * @calib: default calibrations.
 281  */
 282 struct iwl_tlv_calib_data {
 283         __le32 ucode_type;
 284         struct iwl_tlv_calib_ctrl calib;
 285 } __packed;
 286
 287 struct iwl_firmware_pieces {
 288         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 289
 290         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 291         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 292
 293         /* FW debug data parsed for driver usage */
 294         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 295         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 296         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 297         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 298         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 299         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 300         size_t n_dbg_mem_tlv;
 301 };
 302
 303 /*
 304  * These functions are just to extract uCode section data from the pieces
 305  * structure.
 306  */
 307 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 308                               enum iwl_ucode_type type,
 309                               int  sec)
 310 {
 311         return &pieces->img[type].sec[sec];
 312 }
 313
 314 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 315                            enum iwl_ucode_type type,
 316                            int sec)
 317 {
 318         struct fw_img_parsing *img = &pieces->img[type];
 319         struct fw_sec *sec_memory;
 320         int size = sec + 1;
 321         size_t alloc_size = sizeof(*img->sec) * size;
 322
 323         if (img->sec && img->sec_counter >= size)
 324                 return;
 325
 326         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 327         if (!sec_memory)
 328                 return;
 329
 330         img->sec = sec_memory;
 331         img->sec_counter = size;
 332 }
 333
 334 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 335                          enum iwl_ucode_type type,
 336                          int sec,
 337                          const void *data)
 338 {
 339         alloc_sec_data(pieces, type, sec);
 340
 341         pieces->img[type].sec[sec].data = data;
 342 }
 343
 344 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 345                          enum iwl_ucode_type type,
 346                          int sec,
 347                          size_t size)
 348 {
 349         alloc_sec_data(pieces, type, sec);
 350
 351         pieces->img[type].sec[sec].size = size;
 352 }
 353
 354 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 355                            enum iwl_ucode_type type,
 356                            int sec)
 357 {
 358         return pieces->img[type].sec[sec].size;
 359 }
 360
 361 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 362                            enum iwl_ucode_type type,
 363                            int sec,
 364                            u32 offset)
 365 {
 366         alloc_sec_data(pieces, type, sec);
 367
 368         pieces->img[type].sec[sec].offset = offset;
 369 }
 370
 371 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 372 {
 373         int i, j;
 374         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 375         struct iwl_fw_cipher_scheme *fwcs;
 376
 377         if (len < sizeof(*l) ||
 378             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 379                 return -EINVAL;
 380
 381         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 382                 fwcs = &l->cs[j];
 383
 384                 /* we skip schemes with zero cipher suite selector */
 385                 if (!fwcs->cipher)
 386                         continue;
 387
 388                 fw->cs[j++] = *fwcs;
 389         }
 390
 391         return 0;
 392 }
 393
 394 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 395                                  const u32 len)
 396 {
 397         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 398         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 399
 400         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 401         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 402         capa->max_ap_cache_per_scan =
 403                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 404         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 405         capa->max_scan_reporting_threshold =
 406                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 407         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 408         capa->max_significant_change_aps =
 409                 le32_to_cpu(fw_capa->max_significant_change_aps);
 410         capa->max_bssid_history_entries =
 411                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 412         capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
 413         capa->max_number_epno_networks =
 414                 le32_to_cpu(fw_capa->max_number_epno_networks);
 415         capa->max_number_epno_networks_by_ssid =
 416                 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
 417         capa->max_number_of_white_listed_ssid =
 418                 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
 419         capa->max_number_of_black_listed_ssid =
 420                 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
 421 }
 422
 423 /*
 424  * Gets uCode section from tlv.
 425  */
 426 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 427                                const void *data, enum iwl_ucode_type type,
 428                                int size)
 429 {
 430         struct fw_img_parsing *img;
 431         struct fw_sec *sec;
 432         struct fw_sec_parsing *sec_parse;
 433         size_t alloc_size;
 434
 435         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 436                 return -1;
 437
 438         sec_parse = (struct fw_sec_parsing *)data;
 439
 440         img = &pieces->img[type];
 441
 442         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 443         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 444         if (!sec)
 445                 return -ENOMEM;
 446         img->sec = sec;
 447
 448         sec = &img->sec[img->sec_counter];
 449
 450         sec->offset = le32_to_cpu(sec_parse->offset);
 451         sec->data = sec_parse->data;
 452         sec->size = size - sizeof(sec_parse->offset);
 453
 454         ++img->sec_counter;
 455
 456         return 0;
 457 }
 458
 459 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 460 {
 461         struct iwl_tlv_calib_data *def_calib =
 462                                         (struct iwl_tlv_calib_data *)data;
 463         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 464         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 465                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 466                         ucode_type);
 467                 return -EINVAL;
 468         }
 469         drv->fw.default_calib[ucode_type].flow_trigger =
 470                 def_calib->calib.flow_trigger;
 471         drv->fw.default_calib[ucode_type].event_trigger =
 472                 def_calib->calib.event_trigger;
 473
 474         return 0;
 475 }
 476
 477 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 478                                    struct iwl_ucode_capabilities *capa)
 479 {
 480         const struct iwl_ucode_api *ucode_api = (void *)data;
 481         u32 api_index = le32_to_cpu(ucode_api->api_index);
 482         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 483         int i;
 484
 485         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 486                 IWL_ERR(drv,
 487                         "api flags index %d larger than supported by driver\n",
 488                         api_index);
 489                 /* don't return an error so we can load FW that has more bits */
 490                 return 0;
 491         }
 492
 493         for (i = 0; i < 32; i++) {
 494                 if (api_flags & BIT(i))
 495                         __set_bit(i + 32 * api_index, capa->_api);
 496         }
 497
 498         return 0;
 499 }
 500
 501 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 502                                       struct iwl_ucode_capabilities *capa)
 503 {
 504         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 505         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 506         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 507         int i;
 508
 509         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 510                 IWL_ERR(drv,
 511                         "capa flags index %d larger than supported by driver\n",
 512                         api_index);
 513                 /* don't return an error so we can load FW that has more bits */
 514                 return 0;
 515         }
 516
 517         for (i = 0; i < 32; i++) {
 518                 if (api_flags & BIT(i))
 519                         __set_bit(i + 32 * api_index, capa->_capa);
 520         }
 521
 522         return 0;
 523 }
 524
 525 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 526                                     const struct firmware *ucode_raw,
 527                                     struct iwl_firmware_pieces *pieces)
 528 {
 529         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 530         u32 api_ver, hdr_size, build;
 531         char buildstr[25];
 532         const u8 *src;
 533
 534         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 535         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 536
 537         switch (api_ver) {
 538         default:
 539                 hdr_size = 28;
 540                 if (ucode_raw->size < hdr_size) {
 541                         IWL_ERR(drv, "File size too small!\n");
 542                         return -EINVAL;
 543                 }
 544                 build = le32_to_cpu(ucode->u.v2.build);
 545                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 546                              le32_to_cpu(ucode->u.v2.inst_size));
 547                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 548                              le32_to_cpu(ucode->u.v2.data_size));
 549                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 550                              le32_to_cpu(ucode->u.v2.init_size));
 551                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 552                              le32_to_cpu(ucode->u.v2.init_data_size));
 553                 src = ucode->u.v2.data;
 554                 break;
 555         case 0:
 556         case 1:
 557         case 2:
 558                 hdr_size = 24;
 559                 if (ucode_raw->size < hdr_size) {
 560                         IWL_ERR(drv, "File size too small!\n");
 561                         return -EINVAL;
 562                 }
 563                 build = 0;
 564                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 565                              le32_to_cpu(ucode->u.v1.inst_size));
 566                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 567                              le32_to_cpu(ucode->u.v1.data_size));
 568                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 569                              le32_to_cpu(ucode->u.v1.init_size));
 570                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 571                              le32_to_cpu(ucode->u.v1.init_data_size));
 572                 src = ucode->u.v1.data;
 573                 break;
 574         }
 575
 576         if (build)
 577                 sprintf(buildstr, " build %u", build);
 578         else
 579                 buildstr[0] = '\0';
 580
 581         snprintf(drv->fw.fw_version,
 582                  sizeof(drv->fw.fw_version),
 583                  "%u.%u.%u.%u%s",
 584                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 585                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 586                  IWL_UCODE_API(drv->fw.ucode_ver),
 587                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 588                  buildstr);
 589
 590         /* Verify size of file vs. image size info in file's header */
 591
 592         if (ucode_raw->size != hdr_size +
 593             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 594             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 595             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 596             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 597
 598                 IWL_ERR(drv,
 599                         "uCode file size %d does not match expected size\n",
 600                         (int)ucode_raw->size);
 601                 return -EINVAL;
 602         }
 603
 604
 605         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 606         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 607         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 608                        IWLAGN_RTC_INST_LOWER_BOUND);
 609         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 610         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 611         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 612                        IWLAGN_RTC_DATA_LOWER_BOUND);
 613         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 614         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 615         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 616                        IWLAGN_RTC_INST_LOWER_BOUND);
 617         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 618         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 619         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 620                        IWLAGN_RTC_DATA_LOWER_BOUND);
 621         return 0;
 622 }
 623
 624 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 625                                 const struct firmware *ucode_raw,
 626                                 struct iwl_firmware_pieces *pieces,
 627                                 struct iwl_ucode_capabilities *capa,
 628                                 bool *usniffer_images)
 629 {
 630         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 631         struct iwl_ucode_tlv *tlv;
 632         size_t len = ucode_raw->size;
 633         const u8 *data;
 634         u32 tlv_len;
 635         u32 usniffer_img;
 636         enum iwl_ucode_tlv_type tlv_type;
 637         const u8 *tlv_data;
 638         char buildstr[25];
 639         u32 build, paging_mem_size;
 640         int num_of_cpus;
 641         bool usniffer_req = false;
 642         bool gscan_capa = false;
 643
 644         if (len < sizeof(*ucode)) {
 645                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 646                 return -EINVAL;
 647         }
 648
 649         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 650                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 651                         le32_to_cpu(ucode->magic));
 652                 return -EINVAL;
 653         }
 654
 655         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 656         memcpy(drv->fw.human_readable, ucode->human_readable,
 657                sizeof(drv->fw.human_readable));
 658         build = le32_to_cpu(ucode->build);
 659
 660         if (build)
 661                 sprintf(buildstr, " build %u", build);
 662         else
 663                 buildstr[0] = '\0';
 664
 665         snprintf(drv->fw.fw_version,
 666                  sizeof(drv->fw.fw_version),
 667                  "%u.%u.%u.%u%s",
 668                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 669                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 670                  IWL_UCODE_API(drv->fw.ucode_ver),
 671                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 672                  buildstr);
 673
 674         data = ucode->data;
 675
 676         len -= sizeof(*ucode);
 677
 678         while (len >= sizeof(*tlv)) {
 679                 len -= sizeof(*tlv);
 680                 tlv = (void *)data;
 681
 682                 tlv_len = le32_to_cpu(tlv->length);
 683                 tlv_type = le32_to_cpu(tlv->type);
 684                 tlv_data = tlv->data;
 685
 686                 if (len < tlv_len) {
 687                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 688                                 len, tlv_len);
 689                         return -EINVAL;
 690                 }
 691                 len -= ALIGN(tlv_len, 4);
 692                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 693
 694                 switch (tlv_type) {
 695                 case IWL_UCODE_TLV_INST:
 696                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 697                                      IWL_UCODE_SECTION_INST, tlv_data);
 698                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 699                                      IWL_UCODE_SECTION_INST, tlv_len);
 700                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 701                                        IWL_UCODE_SECTION_INST,
 702                                        IWLAGN_RTC_INST_LOWER_BOUND);
 703                         break;
 704                 case IWL_UCODE_TLV_DATA:
 705                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 706                                      IWL_UCODE_SECTION_DATA, tlv_data);
 707                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 708                                      IWL_UCODE_SECTION_DATA, tlv_len);
 709                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 710                                        IWL_UCODE_SECTION_DATA,
 711                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 712                         break;
 713                 case IWL_UCODE_TLV_INIT:
 714                         set_sec_data(pieces, IWL_UCODE_INIT,
 715                                      IWL_UCODE_SECTION_INST, tlv_data);
 716                         set_sec_size(pieces, IWL_UCODE_INIT,
 717                                      IWL_UCODE_SECTION_INST, tlv_len);
 718                         set_sec_offset(pieces, IWL_UCODE_INIT,
 719                                        IWL_UCODE_SECTION_INST,
 720                                        IWLAGN_RTC_INST_LOWER_BOUND);
 721                         break;
 722                 case IWL_UCODE_TLV_INIT_DATA:
 723                         set_sec_data(pieces, IWL_UCODE_INIT,
 724                                      IWL_UCODE_SECTION_DATA, tlv_data);
 725                         set_sec_size(pieces, IWL_UCODE_INIT,
 726                                      IWL_UCODE_SECTION_DATA, tlv_len);
 727                         set_sec_offset(pieces, IWL_UCODE_INIT,
 728                                        IWL_UCODE_SECTION_DATA,
 729                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 730                         break;
 731                 case IWL_UCODE_TLV_BOOT:
 732                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 733                         break;
 734                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 735                         if (tlv_len != sizeof(u32))
 736                                 goto invalid_tlv_len;
 737                         capa->max_probe_length =
 738                                         le32_to_cpup((__le32 *)tlv_data);
 739                         break;
 740                 case IWL_UCODE_TLV_PAN:
 741                         if (tlv_len)
 742                                 goto invalid_tlv_len;
 743                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 744                         break;
 745                 case IWL_UCODE_TLV_FLAGS:
 746                         /* must be at least one u32 */
 747                         if (tlv_len < sizeof(u32))
 748                                 goto invalid_tlv_len;
 749                         /* and a proper number of u32s */
 750                         if (tlv_len % sizeof(u32))
 751                                 goto invalid_tlv_len;
 752                         /*
 753                          * This driver only reads the first u32 as
 754                          * right now no more features are defined,
 755                          * if that changes then either the driver
 756                          * will not work with the new firmware, or
 757                          * it'll not take advantage of new features.
 758                          */
 759                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 760                         break;
 761                 case IWL_UCODE_TLV_API_CHANGES_SET:
 762                         if (tlv_len != sizeof(struct iwl_ucode_api))
 763                                 goto invalid_tlv_len;
 764                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 765                                 goto tlv_error;
 766                         break;
 767                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 768                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 769                                 goto invalid_tlv_len;
 770                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 771                                 goto tlv_error;
 772                         break;
 773                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 774                         if (tlv_len != sizeof(u32))
 775                                 goto invalid_tlv_len;
 776                         pieces->init_evtlog_ptr =
 777                                         le32_to_cpup((__le32 *)tlv_data);
 778                         break;
 779                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 780                         if (tlv_len != sizeof(u32))
 781                                 goto invalid_tlv_len;
 782                         pieces->init_evtlog_size =
 783                                         le32_to_cpup((__le32 *)tlv_data);
 784                         break;
 785                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 786                         if (tlv_len != sizeof(u32))
 787                                 goto invalid_tlv_len;
 788                         pieces->init_errlog_ptr =
 789                                         le32_to_cpup((__le32 *)tlv_data);
 790                         break;
 791                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 792                         if (tlv_len != sizeof(u32))
 793                                 goto invalid_tlv_len;
 794                         pieces->inst_evtlog_ptr =
 795                                         le32_to_cpup((__le32 *)tlv_data);
 796                         break;
 797                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 798                         if (tlv_len != sizeof(u32))
 799                                 goto invalid_tlv_len;
 800                         pieces->inst_evtlog_size =
 801                                         le32_to_cpup((__le32 *)tlv_data);
 802                         break;
 803                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 804                         if (tlv_len != sizeof(u32))
 805                                 goto invalid_tlv_len;
 806                         pieces->inst_errlog_ptr =
 807                                         le32_to_cpup((__le32 *)tlv_data);
 808                         break;
 809                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 810                         if (tlv_len)
 811                                 goto invalid_tlv_len;
 812                         drv->fw.enhance_sensitivity_table = true;
 813                         break;
 814                 case IWL_UCODE_TLV_WOWLAN_INST:
 815                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 816                                      IWL_UCODE_SECTION_INST, tlv_data);
 817                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 818                                      IWL_UCODE_SECTION_INST, tlv_len);
 819                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 820                                        IWL_UCODE_SECTION_INST,
 821                                        IWLAGN_RTC_INST_LOWER_BOUND);
 822                         break;
 823                 case IWL_UCODE_TLV_WOWLAN_DATA:
 824                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 825                                      IWL_UCODE_SECTION_DATA, tlv_data);
 826                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 827                                      IWL_UCODE_SECTION_DATA, tlv_len);
 828                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 829                                        IWL_UCODE_SECTION_DATA,
 830                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 831                         break;
 832                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 833                         if (tlv_len != sizeof(u32))
 834                                 goto invalid_tlv_len;
 835                         capa->standard_phy_calibration_size =
 836                                         le32_to_cpup((__le32 *)tlv_data);
 837                         break;
 838                  case IWL_UCODE_TLV_SEC_RT:
 839                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 840                                             tlv_len);
 841                         drv->fw.type = IWL_FW_MVM;
 842                         break;
 843                 case IWL_UCODE_TLV_SEC_INIT:
 844                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 845                                             tlv_len);
 846                         drv->fw.type = IWL_FW_MVM;
 847                         break;
 848                 case IWL_UCODE_TLV_SEC_WOWLAN:
 849                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 850                                             tlv_len);
 851                         drv->fw.type = IWL_FW_MVM;
 852                         break;
 853                 case IWL_UCODE_TLV_DEF_CALIB:
 854                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 855                                 goto invalid_tlv_len;
 856                         if (iwl_set_default_calib(drv, tlv_data))
 857                                 goto tlv_error;
 858                         break;
 859                 case IWL_UCODE_TLV_PHY_SKU:
 860                         if (tlv_len != sizeof(u32))
 861                                 goto invalid_tlv_len;
 862                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 863                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 864                                                 FW_PHY_CFG_TX_CHAIN) >>
 865                                                 FW_PHY_CFG_TX_CHAIN_POS;
 866                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 867                                                 FW_PHY_CFG_RX_CHAIN) >>
 868                                                 FW_PHY_CFG_RX_CHAIN_POS;
 869                         break;
 870                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 871                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 872                                             tlv_len);
 873                         drv->fw.type = IWL_FW_MVM;
 874                         break;
 875                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 876                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 877                                             tlv_len);
 878                         drv->fw.type = IWL_FW_MVM;
 879                         break;
 880                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 881                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 882                                             tlv_len);
 883                         drv->fw.type = IWL_FW_MVM;
 884                         break;
 885                 case IWL_UCODE_TLV_NUM_OF_CPU:
 886                         if (tlv_len != sizeof(u32))
 887                                 goto invalid_tlv_len;
 888                         num_of_cpus =
 889                                 le32_to_cpup((__le32 *)tlv_data);
 890
 891                         if (num_of_cpus == 2) {
 892                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 893                                         true;
 894                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 895                                         true;
 896                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 897                                         true;
 898                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 899                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 900                                 return -EINVAL;
 901                         }
 902                         break;
 903                 case IWL_UCODE_TLV_CSCHEME:
 904                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 905                                 goto invalid_tlv_len;
 906                         break;
 907                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 908                         if (tlv_len != sizeof(u32))
 909                                 goto invalid_tlv_len;
 910                         capa->n_scan_channels =
 911                                 le32_to_cpup((__le32 *)tlv_data);
 912                         break;
 913                 case IWL_UCODE_TLV_FW_VERSION: {
 914                         __le32 *ptr = (void *)tlv_data;
 915                         u32 major, minor;
 916                         u8 local_comp;
 917
 918                         if (tlv_len != sizeof(u32) * 3)
 919                                 goto invalid_tlv_len;
 920
 921                         major = le32_to_cpup(ptr++);
 922                         minor = le32_to_cpup(ptr++);
 923                         local_comp = le32_to_cpup(ptr);
 924
 925                         snprintf(drv->fw.fw_version,
 926                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 927                                  major, minor, local_comp);
 928                         break;
 929                         }
 930                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 931                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 932
 933                         if (pieces->dbg_dest_tlv) {
 934                                 IWL_ERR(drv,
 935                                         "dbg destination ignored, already exists\n");
 936                                 break;
 937                         }
 938
 939                         pieces->dbg_dest_tlv = dest;
 940                         IWL_INFO(drv, "Found debug destination: %s\n",
 941                                  get_fw_dbg_mode_string(dest->monitor_mode));
 942
 943                         drv->fw.dbg_dest_reg_num =
 944                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 945                                                    reg_ops);
 946                         drv->fw.dbg_dest_reg_num /=
 947                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 948
 949                         break;
 950                         }
 951                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 952                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 953
 954                         if (!pieces->dbg_dest_tlv) {
 955                                 IWL_ERR(drv,
 956                                         "Ignore dbg config %d - no destination configured\n",
 957                                         conf->id);
 958                                 break;
 959                         }
 960
 961                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 962                                 IWL_ERR(drv,
 963                                         "Skip unknown configuration: %d\n",
 964                                         conf->id);
 965                                 break;
 966                         }
 967
 968                         if (pieces->dbg_conf_tlv[conf->id]) {
 969                                 IWL_ERR(drv,
 970                                         "Ignore duplicate dbg config %d\n",
 971                                         conf->id);
 972                                 break;
 973                         }
 974
 975                         if (conf->usniffer)
 976                                 usniffer_req = true;
 977
 978                         IWL_INFO(drv, "Found debug configuration: %d\n",
 979                                  conf->id);
 980
 981                         pieces->dbg_conf_tlv[conf->id] = conf;
 982                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 983                         break;
 984                         }
 985                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 986                         struct iwl_fw_dbg_trigger_tlv *trigger =
 987                                 (void *)tlv_data;
 988                         u32 trigger_id = le32_to_cpu(trigger->id);
 989
 990                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 991                                 IWL_ERR(drv,
 992                                         "Skip unknown trigger: %u\n",
 993                                         trigger->id);
 994                                 break;
 995                         }
 996
 997                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 998                                 IWL_ERR(drv,
 999                                         "Ignore duplicate dbg trigger %u\n",
1000                                         trigger->id);
1001                                 break;
1002                         }
1003
1004                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1005
1006                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1007                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1008                         break;
1009                         }
1010                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1011                         *usniffer_images = true;
1012                         iwl_store_ucode_sec(pieces, tlv_data,
1013                                             IWL_UCODE_REGULAR_USNIFFER,
1014                                             tlv_len);
1015                         break;
1016                 case IWL_UCODE_TLV_PAGING:
1017                         if (tlv_len != sizeof(u32))
1018                                 goto invalid_tlv_len;
1019                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1020
1021                         IWL_DEBUG_FW(drv,
1022                                      "Paging: paging enabled (size = %u bytes)\n",
1023                                      paging_mem_size);
1024
1025                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1026                                 IWL_ERR(drv,
1027                                         "Paging: driver supports up to %lu bytes for paging image\n",
1028                                         MAX_PAGING_IMAGE_SIZE);
1029                                 return -EINVAL;
1030                         }
1031
1032                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1033                                 IWL_ERR(drv,
1034                                         "Paging: image isn't multiple %lu\n",
1035                                         FW_PAGING_SIZE);
1036                                 return -EINVAL;
1037                         }
1038
1039                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1040                                 paging_mem_size;
1041                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1042                         drv->fw.img[usniffer_img].paging_mem_size =
1043                                 paging_mem_size;
1044                         break;
1045                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1046                         if (tlv_len != sizeof(u32))
1047                                 goto invalid_tlv_len;
1048                         drv->fw.sdio_adma_addr =
1049                                 le32_to_cpup((__le32 *)tlv_data);
1050                         break;
1051                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1052                         /*
1053                          * Don't return an error in case of a shorter tlv_len
1054                          * to enable loading of FW that has an old format
1055                          * of GSCAN capabilities TLV.
1056                          */
1057                         if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1058                                 break;
1059
1060                         iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1061                         gscan_capa = true;
1062                         break;
1063                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1064                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1065                                 (void *)tlv_data;
1066                         u32 type;
1067                         size_t size;
1068                         struct iwl_fw_dbg_mem_seg_tlv *n;
1069
1070                         if (tlv_len != (sizeof(*dbg_mem)))
1071                                 goto invalid_tlv_len;
1072
1073                         type = le32_to_cpu(dbg_mem->data_type);
1074
1075                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1076                                        dbg_mem->data_type);
1077
1078                         switch (type & FW_DBG_MEM_TYPE_MASK) {
1079                         case FW_DBG_MEM_TYPE_REGULAR:
1080                         case FW_DBG_MEM_TYPE_PRPH:
1081                                 /* we know how to handle these */
1082                                 break;
1083                         default:
1084                                 IWL_ERR(drv,
1085                                         "Found debug memory segment with invalid type: 0x%x\n",
1086                                         type);
1087                                 return -EINVAL;
1088                         }
1089
1090                         size = sizeof(*pieces->dbg_mem_tlv) *
1091                                (pieces->n_dbg_mem_tlv + 1);
1092                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1093                         if (!n)
1094                                 return -ENOMEM;
1095                         pieces->dbg_mem_tlv = n;
1096                         pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem;
1097                         pieces->n_dbg_mem_tlv++;
1098                         break;
1099                         }
1100                 default:
1101                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1102                         break;
1103                 }
1104         }
1105
1106         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1107             usniffer_req && !*usniffer_images) {
1108                 IWL_ERR(drv,
1109                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1110                 return -EINVAL;
1111         }
1112
1113         if (len) {
1114                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1115                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1116                 return -EINVAL;
1117         }
1118
1119         /*
1120          * If ucode advertises that it supports GSCAN but GSCAN
1121          * capabilities TLV is not present, or if it has an old format,
1122          * warn and continue without GSCAN.
1123          */
1124         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1125             !gscan_capa) {
1126                 IWL_DEBUG_INFO(drv,
1127                                "GSCAN is supported but capabilities TLV is unavailable\n");
1128                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1129                             capa->_capa);
1130         }
1131
1132         return 0;
1133
1134  invalid_tlv_len:
1135         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1136  tlv_error:
1137         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1138
1139         return -EINVAL;
1140 }
1141
1142 static int iwl_alloc_ucode(struct iwl_drv *drv,
1143                            struct iwl_firmware_pieces *pieces,
1144                            enum iwl_ucode_type type)
1145 {
1146         int i;
1147         struct fw_desc *sec;
1148
1149         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1150         if (!sec)
1151                 return -ENOMEM;
1152         drv->fw.img[type].sec = sec;
1153         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1154
1155         for (i = 0; i < pieces->img[type].sec_counter; i++)
1156                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1157                         return -ENOMEM;
1158
1159         return 0;
1160 }
1161
1162 static int validate_sec_sizes(struct iwl_drv *drv,
1163                               struct iwl_firmware_pieces *pieces,
1164                               const struct iwl_cfg *cfg)
1165 {
1166         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1167                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1168                              IWL_UCODE_SECTION_INST));
1169         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1170                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1171                              IWL_UCODE_SECTION_DATA));
1172         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1173                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1174         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1175                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1176
1177         /* Verify that uCode images will fit in card's SRAM. */
1178         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1179             cfg->max_inst_size) {
1180                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1181                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1182                                      IWL_UCODE_SECTION_INST));
1183                 return -1;
1184         }
1185
1186         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1187             cfg->max_data_size) {
1188                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1189                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1190                                      IWL_UCODE_SECTION_DATA));
1191                 return -1;
1192         }
1193
1194         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1195              cfg->max_inst_size) {
1196                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1197                         get_sec_size(pieces, IWL_UCODE_INIT,
1198                                      IWL_UCODE_SECTION_INST));
1199                 return -1;
1200         }
1201
1202         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1203             cfg->max_data_size) {
1204                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1205                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1206                                      IWL_UCODE_SECTION_DATA));
1207                 return -1;
1208         }
1209         return 0;
1210 }
1211
1212 static struct iwl_op_mode *
1213 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1214 {
1215         const struct iwl_op_mode_ops *ops = op->ops;
1216         struct dentry *dbgfs_dir = NULL;
1217         struct iwl_op_mode *op_mode = NULL;
1218
1219 #ifdef CONFIG_IWLWIFI_DEBUGFS
1220         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1221                                                 drv->dbgfs_drv);
1222         if (!drv->dbgfs_op_mode) {
1223                 IWL_ERR(drv,
1224                         "failed to create opmode debugfs directory\n");
1225                 return op_mode;
1226         }
1227         dbgfs_dir = drv->dbgfs_op_mode;
1228 #endif
1229
1230         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1231
1232 #ifdef CONFIG_IWLWIFI_DEBUGFS
1233         if (!op_mode) {
1234                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1235                 drv->dbgfs_op_mode = NULL;
1236         }
1237 #endif
1238
1239         return op_mode;
1240 }
1241
1242 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1243 {
1244         /* op_mode can be NULL if its start failed */
1245         if (drv->op_mode) {
1246                 iwl_op_mode_stop(drv->op_mode);
1247                 drv->op_mode = NULL;
1248
1249 #ifdef CONFIG_IWLWIFI_DEBUGFS
1250                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1251                 drv->dbgfs_op_mode = NULL;
1252 #endif
1253         }
1254 }
1255
1256 /**
1257  * iwl_req_fw_callback - callback when firmware was loaded
1258  *
1259  * If loaded successfully, copies the firmware into buffers
1260  * for the card to fetch (via DMA).
1261  */
1262 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1263 {
1264         struct iwl_drv *drv = context;
1265         struct iwl_fw *fw = &drv->fw;
1266         struct iwl_ucode_header *ucode;
1267         struct iwlwifi_opmode_table *op;
1268         int err;
1269         struct iwl_firmware_pieces *pieces;
1270         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1271         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1272         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1273         u32 api_ver;
1274         int i;
1275         bool load_module = false;
1276         bool usniffer_images = false;
1277
1278         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1279         fw->ucode_capa.standard_phy_calibration_size =
1280                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1281         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1282
1283         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1284         if (!pieces)
1285                 goto out_free_fw;
1286
1287         if (!ucode_raw)
1288                 goto try_again;
1289
1290         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1291                        drv->firmware_name, ucode_raw->size);
1292
1293         /* Make sure that we got at least the API version number */
1294         if (ucode_raw->size < 4) {
1295                 IWL_ERR(drv, "File size way too small!\n");
1296                 goto try_again;
1297         }
1298
1299         /* Data from ucode file:  header followed by uCode images */
1300         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1301
1302         if (ucode->ver)
1303                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1304         else
1305                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1306                                              &fw->ucode_capa, &usniffer_images);
1307
1308         if (err)
1309                 goto try_again;
1310
1311         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1312                 api_ver = drv->fw.ucode_ver;
1313         else
1314                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1315
1316         /*
1317          * api_ver should match the api version forming part of the
1318          * firmware filename ... but we don't check for that and only rely
1319          * on the API version read from firmware header from here on forward
1320          */
1321         if (api_ver < api_min || api_ver > api_max) {
1322                 IWL_ERR(drv,
1323                         "Driver unable to support your firmware API. "
1324                         "Driver supports v%u, firmware is v%u.\n",
1325                         api_max, api_ver);
1326                 goto try_again;
1327         }
1328
1329         /*
1330          * In mvm uCode there is no difference between data and instructions
1331          * sections.
1332          */
1333         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1334                                                          drv->trans->cfg))
1335                 goto try_again;
1336
1337         /* Allocate ucode buffers for card's bus-master loading ... */
1338
1339         /* Runtime instructions and 2 copies of data:
1340          * 1) unmodified from disk
1341          * 2) backup cache for save/restore during power-downs */
1342         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1343                 if (iwl_alloc_ucode(drv, pieces, i))
1344                         goto out_free_fw;
1345
1346         if (pieces->dbg_dest_tlv) {
1347                 drv->fw.dbg_dest_tlv =
1348                         kmemdup(pieces->dbg_dest_tlv,
1349                                 sizeof(*pieces->dbg_dest_tlv) +
1350                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1351                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1352
1353                 if (!drv->fw.dbg_dest_tlv)
1354                         goto out_free_fw;
1355         }
1356
1357         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1358                 if (pieces->dbg_conf_tlv[i]) {
1359                         drv->fw.dbg_conf_tlv_len[i] =
1360                                 pieces->dbg_conf_tlv_len[i];
1361                         drv->fw.dbg_conf_tlv[i] =
1362                                 kmemdup(pieces->dbg_conf_tlv[i],
1363                                         drv->fw.dbg_conf_tlv_len[i],
1364                                         GFP_KERNEL);
1365                         if (!drv->fw.dbg_conf_tlv[i])
1366                                 goto out_free_fw;
1367                 }
1368         }
1369
1370         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1371
1372         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1373                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1374         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1375         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1376                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1377         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1378                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1379         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1380                 sizeof(struct iwl_fw_dbg_trigger_stats);
1381         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1382                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1383         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1384                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1385         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1386                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1387         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1388                 sizeof(struct iwl_fw_dbg_trigger_ba);
1389         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1390                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1391
1392         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1393                 if (pieces->dbg_trigger_tlv[i]) {
1394                         /*
1395                          * If the trigger isn't long enough, WARN and exit.
1396                          * Someone is trying to debug something and he won't
1397                          * be able to catch the bug he is trying to chase.
1398                          * We'd better be noisy to be sure he knows what's
1399                          * going on.
1400                          */
1401                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1402                                     (trigger_tlv_sz[i] +
1403                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1404                                 goto out_free_fw;
1405                         drv->fw.dbg_trigger_tlv_len[i] =
1406                                 pieces->dbg_trigger_tlv_len[i];
1407                         drv->fw.dbg_trigger_tlv[i] =
1408                                 kmemdup(pieces->dbg_trigger_tlv[i],
1409                                         drv->fw.dbg_trigger_tlv_len[i],
1410                                         GFP_KERNEL);
1411                         if (!drv->fw.dbg_trigger_tlv[i])
1412                                 goto out_free_fw;
1413                 }
1414         }
1415
1416         /* Now that we can no longer fail, copy information */
1417
1418         drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv;
1419         pieces->dbg_mem_tlv = NULL;
1420         drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv;
1421
1422         /*
1423          * The (size - 16) / 12 formula is based on the information recorded
1424          * for each event, which is of mode 1 (including timestamp) for all
1425          * new microcodes that include this information.
1426          */
1427         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1428         if (pieces->init_evtlog_size)
1429                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1430         else
1431                 fw->init_evtlog_size =
1432                         drv->trans->cfg->base_params->max_event_log_size;
1433         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1434         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1435         if (pieces->inst_evtlog_size)
1436                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1437         else
1438                 fw->inst_evtlog_size =
1439                         drv->trans->cfg->base_params->max_event_log_size;
1440         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1441
1442         /*
1443          * figure out the offset of chain noise reset and gain commands
1444          * base on the size of standard phy calibration commands table size
1445          */
1446         if (fw->ucode_capa.standard_phy_calibration_size >
1447             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1448                 fw->ucode_capa.standard_phy_calibration_size =
1449                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1450
1451         /* We have our copies now, allow OS release its copies */
1452         release_firmware(ucode_raw);
1453
1454         mutex_lock(&iwlwifi_opmode_table_mtx);
1455         switch (fw->type) {
1456         case IWL_FW_DVM:
1457                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1458                 break;
1459         default:
1460                 WARN(1, "Invalid fw type %d\n", fw->type);
1461         case IWL_FW_MVM:
1462                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1463                 break;
1464         }
1465
1466         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1467                  drv->fw.fw_version, op->name);
1468
1469         /* add this device to the list of devices using this op_mode */
1470         list_add_tail(&drv->list, &op->drv);
1471
1472         if (op->ops) {
1473                 drv->op_mode = _iwl_op_mode_start(drv, op);
1474
1475                 if (!drv->op_mode) {
1476                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1477                         goto out_unbind;
1478                 }
1479         } else {
1480                 load_module = true;
1481         }
1482         mutex_unlock(&iwlwifi_opmode_table_mtx);
1483
1484         /*
1485          * Complete the firmware request last so that
1486          * a driver unbind (stop) doesn't run while we
1487          * are doing the start() above.
1488          */
1489         complete(&drv->request_firmware_complete);
1490
1491         /*
1492          * Load the module last so we don't block anything
1493          * else from proceeding if the module fails to load
1494          * or hangs loading.
1495          */
1496         if (load_module) {
1497                 request_module("%s", op->name);
1498 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1499                 if (err)
1500                         IWL_ERR(drv,
1501                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1502                                 op->name, err);
1503 #endif
1504         }
1505         goto free;
1506
1507  try_again:
1508         /* try next, if any */
1509         release_firmware(ucode_raw);
1510         if (iwl_request_firmware(drv, false))
1511                 goto out_unbind;
1512         goto free;
1513
1514  out_free_fw:
1515         iwl_dealloc_ucode(drv);
1516         release_firmware(ucode_raw);
1517  out_unbind:
1518         complete(&drv->request_firmware_complete);
1519         device_release_driver(drv->trans->dev);
1520  free:
1521         if (pieces) {
1522                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1523                         kfree(pieces->img[i].sec);
1524                 kfree(pieces->dbg_mem_tlv);
1525                 kfree(pieces);
1526         }
1527 }
1528
1529 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1530 {
1531         struct iwl_drv *drv;
1532         int ret;
1533
1534         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1535         if (!drv) {
1536                 ret = -ENOMEM;
1537                 goto err;
1538         }
1539
1540         drv->trans = trans;
1541         drv->dev = trans->dev;
1542
1543         init_completion(&drv->request_firmware_complete);
1544         INIT_LIST_HEAD(&drv->list);
1545
1546 #ifdef CONFIG_IWLWIFI_DEBUGFS
1547         /* Create the device debugfs entries. */
1548         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1549                                             iwl_dbgfs_root);
1550
1551         if (!drv->dbgfs_drv) {
1552                 IWL_ERR(drv, "failed to create debugfs directory\n");
1553                 ret = -ENOMEM;
1554                 goto err_free_drv;
1555         }
1556
1557         /* Create transport layer debugfs dir */
1558         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1559
1560         if (!drv->trans->dbgfs_dir) {
1561                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1562                 ret = -ENOMEM;
1563                 goto err_free_dbgfs;
1564         }
1565 #endif
1566
1567         ret = iwl_request_firmware(drv, true);
1568         if (ret) {
1569                 IWL_ERR(trans, "Couldn't request the fw\n");
1570                 goto err_fw;
1571         }
1572
1573         return drv;
1574
1575 err_fw:
1576 #ifdef CONFIG_IWLWIFI_DEBUGFS
1577 err_free_dbgfs:
1578         debugfs_remove_recursive(drv->dbgfs_drv);
1579 err_free_drv:
1580 #endif
1581         kfree(drv);
1582 err:
1583         return ERR_PTR(ret);
1584 }
1585
1586 void iwl_drv_stop(struct iwl_drv *drv)
1587 {
1588         wait_for_completion(&drv->request_firmware_complete);
1589
1590         _iwl_op_mode_stop(drv);
1591
1592         iwl_dealloc_ucode(drv);
1593
1594         mutex_lock(&iwlwifi_opmode_table_mtx);
1595         /*
1596          * List is empty (this item wasn't added)
1597          * when firmware loading failed -- in that
1598          * case we can't remove it from any list.
1599          */
1600         if (!list_empty(&drv->list))
1601                 list_del(&drv->list);
1602         mutex_unlock(&iwlwifi_opmode_table_mtx);
1603
1604 #ifdef CONFIG_IWLWIFI_DEBUGFS
1605         debugfs_remove_recursive(drv->dbgfs_drv);
1606 #endif
1607
1608         kfree(drv);
1609 }
1610
1611
1612 /* shared module parameters */
1613 struct iwl_mod_params iwlwifi_mod_params = {
1614         .restart_fw = true,
1615         .bt_coex_active = true,
1616         .power_level = IWL_POWER_INDEX_1,
1617         .d0i3_disable = true,
1618         .d0i3_entry_delay = 1000,
1619         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1620         /* the rest are 0 by default */
1621 };
1622 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1623
1624 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1625 {
1626         int i;
1627         struct iwl_drv *drv;
1628         struct iwlwifi_opmode_table *op;
1629
1630         mutex_lock(&iwlwifi_opmode_table_mtx);
1631         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1632                 op = &iwlwifi_opmode_table[i];
1633                 if (strcmp(op->name, name))
1634                         continue;
1635                 op->ops = ops;
1636                 /* TODO: need to handle exceptional case */
1637                 list_for_each_entry(drv, &op->drv, list)
1638                         drv->op_mode = _iwl_op_mode_start(drv, op);
1639
1640                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1641                 return 0;
1642         }
1643         mutex_unlock(&iwlwifi_opmode_table_mtx);
1644         return -EIO;
1645 }
1646 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1647
1648 void iwl_opmode_deregister(const char *name)
1649 {
1650         int i;
1651         struct iwl_drv *drv;
1652
1653         mutex_lock(&iwlwifi_opmode_table_mtx);
1654         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1655                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1656                         continue;
1657                 iwlwifi_opmode_table[i].ops = NULL;
1658
1659                 /* call the stop routine for all devices */
1660                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1661                         _iwl_op_mode_stop(drv);
1662
1663                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1664                 return;
1665         }
1666         mutex_unlock(&iwlwifi_opmode_table_mtx);
1667 }
1668 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1669
1670 static int __init iwl_drv_init(void)
1671 {
1672         int i;
1673
1674         mutex_init(&iwlwifi_opmode_table_mtx);
1675
1676         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1677                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1678
1679         pr_info(DRV_DESCRIPTION "\n");
1680         pr_info(DRV_COPYRIGHT "\n");
1681
1682 #ifdef CONFIG_IWLWIFI_DEBUGFS
1683         /* Create the root of iwlwifi debugfs subsystem. */
1684         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1685
1686         if (!iwl_dbgfs_root)
1687                 return -EFAULT;
1688 #endif
1689
1690         return iwl_pci_register_driver();
1691 }
1692 module_init(iwl_drv_init);
1693
1694 static void __exit iwl_drv_exit(void)
1695 {
1696         iwl_pci_unregister_driver();
1697
1698 #ifdef CONFIG_IWLWIFI_DEBUGFS
1699         debugfs_remove_recursive(iwl_dbgfs_root);
1700 #endif
1701 }
1702 module_exit(iwl_drv_exit);
1703
1704 #ifdef CONFIG_IWLWIFI_DEBUG
1705 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1706                    S_IRUGO | S_IWUSR);
1707 MODULE_PARM_DESC(debug, "debug output mask");
1708 #endif
1709
1710 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1711 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1712 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1713 MODULE_PARM_DESC(11n_disable,
1714         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1715 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1716                    int, S_IRUGO);
1717 MODULE_PARM_DESC(amsdu_size,
1718                  "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)");
1719 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1720 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1721
1722 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1723                    int, S_IRUGO);
1724 MODULE_PARM_DESC(antenna_coupling,
1725                  "specify antenna coupling in dB (default: 0 dB)");
1726
1727 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1728 MODULE_PARM_DESC(nvm_file, "NVM file name");
1729
1730 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1731                    bool, S_IRUGO);
1732 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1733
1734 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1735                    bool, S_IRUGO);
1736 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1737
1738 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1739                    uint, S_IRUGO | S_IWUSR);
1740 MODULE_PARM_DESC(uapsd_disable,
1741                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1742
1743 /*
1744  * set bt_coex_active to true, uCode will do kill/defer
1745  * every time the priority line is asserted (BT is sending signals on the
1746  * priority line in the PCIx).
1747  * set bt_coex_active to false, uCode will ignore the BT activity and
1748  * perform the normal operation
1749  *
1750  * User might experience transmit issue on some platform due to WiFi/BT
1751  * co-exist problem. The possible behaviors are:
1752  *   Able to scan and finding all the available AP
1753  *   Not able to associate with any AP
1754  * On those platforms, WiFi communication can be restored by set
1755  * "bt_coex_active" module parameter to "false"
1756  *
1757  * default: bt_coex_active = true (BT_COEX_ENABLE)
1758  */
1759 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1760                 bool, S_IRUGO);
1761 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1762
1763 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1764 MODULE_PARM_DESC(led_mode, "0=system default, "
1765                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1766
1767 module_param_named(power_save, iwlwifi_mod_params.power_save,
1768                 bool, S_IRUGO);
1769 MODULE_PARM_DESC(power_save,
1770                  "enable WiFi power management (default: disable)");
1771
1772 module_param_named(power_level, iwlwifi_mod_params.power_level,
1773                 int, S_IRUGO);
1774 MODULE_PARM_DESC(power_level,
1775                  "default power save level (range from 1 - 5, default: 1)");
1776
1777 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1778 MODULE_PARM_DESC(fw_monitor,
1779                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1780
1781 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1782                    uint, S_IRUGO);
1783 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1784
1785 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1786                    S_IRUGO);
1787 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");