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  * The full GNU General Public License is included in this distribution
  22  * in the file called COPYING.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <linuxwifi@intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *
  28  * BSD LICENSE
  29  *
  30  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  31  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  32  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  33  * All rights reserved.
  34  *
  35  * Redistribution and use in source and binary forms, with or without
  36  * modification, are permitted provided that the following conditions
  37  * are met:
  38  *
  39  *  * Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  *  * Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in
  43  *    the documentation and/or other materials provided with the
  44  *    distribution.
  45  *  * Neither the name Intel Corporation nor the names of its
  46  *    contributors may be used to endorse or promote products derived
  47  *    from this software without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  50  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  51  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  52  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  53  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  54  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  55  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  56  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  57  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  58  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  59  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  60  *
  61  *****************************************************************************/
  62 #include <linux/completion.h>
  63 #include <linux/dma-mapping.h>
  64 #include <linux/firmware.h>
  65 #include <linux/module.h>
  66 #include <linux/vmalloc.h>
  67
  68 #include "iwl-drv.h"
  69 #include "iwl-csr.h"
  70 #include "iwl-debug.h"
  71 #include "iwl-trans.h"
  72 #include "iwl-op-mode.h"
  73 #include "iwl-agn-hw.h"
  74 #include "fw/img.h"
  75 #include "iwl-config.h"
  76 #include "iwl-modparams.h"
  77
  78 /******************************************************************************
  79  *
  80  * module boiler plate
  81  *
  82  ******************************************************************************/
  83
  84 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  85 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  86 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  87 MODULE_LICENSE("GPL");
  88
  89 #ifdef CONFIG_IWLWIFI_DEBUGFS
  90 static struct dentry *iwl_dbgfs_root;
  91 #endif
  92
  93 /**
  94  * struct iwl_drv - drv common data
  95  * @list: list of drv structures using this opmode
  96  * @fw: the iwl_fw structure
  97  * @op_mode: the running op_mode
  98  * @trans: transport layer
  99  * @dev: for debug prints only
 100  * @fw_index: firmware revision to try loading
 101  * @firmware_name: composite filename of ucode file to load
 102  * @request_firmware_complete: the firmware has been obtained from user space
 103  */
 104 struct iwl_drv {
 105         struct list_head list;
 106         struct iwl_fw fw;
 107
 108         struct iwl_op_mode *op_mode;
 109         struct iwl_trans *trans;
 110         struct device *dev;
 111
 112         int fw_index;                   /* firmware we're trying to load */
 113         char firmware_name[64];         /* name of firmware file to load */
 114
 115         struct completion request_firmware_complete;
 116
 117 #ifdef CONFIG_IWLWIFI_DEBUGFS
 118         struct dentry *dbgfs_drv;
 119         struct dentry *dbgfs_trans;
 120         struct dentry *dbgfs_op_mode;
 121 #endif
 122 };
 123
 124 enum {
 125         DVM_OP_MODE,
 126         MVM_OP_MODE,
 127 };
 128
 129 /* Protects the table contents, i.e. the ops pointer & drv list */
 130 static struct mutex iwlwifi_opmode_table_mtx;
 131 static struct iwlwifi_opmode_table {
 132         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 133         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 134         struct list_head drv;           /* list of devices using this op_mode */
 135 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 136         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 137         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 138 };
 139
 140 #define IWL_DEFAULT_SCAN_CHANNELS 40
 141
 142 /*
 143  * struct fw_sec: Just for the image parsing process.
 144  * For the fw storage we are using struct fw_desc.
 145  */
 146 struct fw_sec {
 147         const void *data;               /* the sec data */
 148         size_t size;                    /* section size */
 149         u32 offset;                     /* offset of writing in the device */
 150 };
 151
 152 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 153 {
 154         vfree(desc->data);
 155         desc->data = NULL;
 156         desc->len = 0;
 157 }
 158
 159 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 160 {
 161         int i;
 162         for (i = 0; i < img->num_sec; i++)
 163                 iwl_free_fw_desc(drv, &img->sec[i]);
 164         kfree(img->sec);
 165 }
 166
 167 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 168 {
 169         int i;
 170
 171         kfree(drv->fw.dbg.dest_tlv);
 172         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
 173                 kfree(drv->fw.dbg.conf_tlv[i]);
 174         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
 175                 kfree(drv->fw.dbg.trigger_tlv[i]);
 176         kfree(drv->fw.dbg.mem_tlv);
 177         kfree(drv->fw.iml);
 178
 179         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 180                 iwl_free_fw_img(drv, drv->fw.img + i);
 181 }
 182
 183 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 184                              struct fw_sec *sec)
 185 {
 186         void *data;
 187
 188         desc->data = NULL;
 189
 190         if (!sec || !sec->size)
 191                 return -EINVAL;
 192
 193         data = vmalloc(sec->size);
 194         if (!data)
 195                 return -ENOMEM;
 196
 197         desc->len = sec->size;
 198         desc->offset = sec->offset;
 199         memcpy(data, sec->data, desc->len);
 200         desc->data = data;
 201
 202         return 0;
 203 }
 204
 205 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 206                                 void *context);
 207
 208 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 209 {
 210         const struct iwl_cfg *cfg = drv->trans->cfg;
 211         char tag[8];
 212         const char *fw_pre_name;
 213
 214         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 215             (CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP ||
 216              CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_C_STEP))
 217                 fw_pre_name = cfg->fw_name_pre_b_or_c_step;
 218         else if (drv->trans->cfg->integrated &&
 219                  CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP &&
 220                  cfg->fw_name_pre_rf_next_step)
 221                 fw_pre_name = cfg->fw_name_pre_rf_next_step;
 222         else
 223                 fw_pre_name = cfg->fw_name_pre;
 224
 225         if (first) {
 226                 drv->fw_index = cfg->ucode_api_max;
 227                 sprintf(tag, "%d", drv->fw_index);
 228         } else {
 229                 drv->fw_index--;
 230                 sprintf(tag, "%d", drv->fw_index);
 231         }
 232
 233         if (drv->fw_index < cfg->ucode_api_min) {
 234                 IWL_ERR(drv, "no suitable firmware found!\n");
 235
 236                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 237                         IWL_ERR(drv, "%s%d is required\n", fw_pre_name,
 238                                 cfg->ucode_api_max);
 239                 } else {
 240                         IWL_ERR(drv, "minimum version required: %s%d\n",
 241                                 fw_pre_name,
 242                                 cfg->ucode_api_min);
 243                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 244                                 fw_pre_name,
 245                                 cfg->ucode_api_max);
 246                 }
 247
 248                 IWL_ERR(drv,
 249                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 250                 return -ENOENT;
 251         }
 252
 253         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 254                  fw_pre_name, tag);
 255
 256         IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
 257                        drv->firmware_name);
 258
 259         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 260                                        drv->trans->dev,
 261                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 262 }
 263
 264 struct fw_img_parsing {
 265         struct fw_sec *sec;
 266         int sec_counter;
 267 };
 268
 269 /*
 270  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 271  */
 272 struct fw_sec_parsing {
 273         __le32 offset;
 274         const u8 data[];
 275 } __packed;
 276
 277 /**
 278  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 279  *
 280  * @ucode_type: the uCode to which the following default calib relates.
 281  * @calib: default calibrations.
 282  */
 283 struct iwl_tlv_calib_data {
 284         __le32 ucode_type;
 285         struct iwl_tlv_calib_ctrl calib;
 286 } __packed;
 287
 288 struct iwl_firmware_pieces {
 289         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 290
 291         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 292         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 293
 294         /* FW debug data parsed for driver usage */
 295         bool dbg_dest_tlv_init;
 296         u8 *dbg_dest_ver;
 297         union {
 298                 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 299                 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
 300         };
 301         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 302         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 303         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 304         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 305         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 306         size_t n_mem_tlv;
 307 };
 308
 309 /*
 310  * These functions are just to extract uCode section data from the pieces
 311  * structure.
 312  */
 313 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 314                               enum iwl_ucode_type type,
 315                               int  sec)
 316 {
 317         return &pieces->img[type].sec[sec];
 318 }
 319
 320 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 321                            enum iwl_ucode_type type,
 322                            int sec)
 323 {
 324         struct fw_img_parsing *img = &pieces->img[type];
 325         struct fw_sec *sec_memory;
 326         int size = sec + 1;
 327         size_t alloc_size = sizeof(*img->sec) * size;
 328
 329         if (img->sec && img->sec_counter >= size)
 330                 return;
 331
 332         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 333         if (!sec_memory)
 334                 return;
 335
 336         img->sec = sec_memory;
 337         img->sec_counter = size;
 338 }
 339
 340 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 341                          enum iwl_ucode_type type,
 342                          int sec,
 343                          const void *data)
 344 {
 345         alloc_sec_data(pieces, type, sec);
 346
 347         pieces->img[type].sec[sec].data = data;
 348 }
 349
 350 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 351                          enum iwl_ucode_type type,
 352                          int sec,
 353                          size_t size)
 354 {
 355         alloc_sec_data(pieces, type, sec);
 356
 357         pieces->img[type].sec[sec].size = size;
 358 }
 359
 360 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 361                            enum iwl_ucode_type type,
 362                            int sec)
 363 {
 364         return pieces->img[type].sec[sec].size;
 365 }
 366
 367 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 368                            enum iwl_ucode_type type,
 369                            int sec,
 370                            u32 offset)
 371 {
 372         alloc_sec_data(pieces, type, sec);
 373
 374         pieces->img[type].sec[sec].offset = offset;
 375 }
 376
 377 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 378 {
 379         int i, j;
 380         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 381         struct iwl_fw_cipher_scheme *fwcs;
 382
 383         if (len < sizeof(*l) ||
 384             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 385                 return -EINVAL;
 386
 387         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 388                 fwcs = &l->cs[j];
 389
 390                 /* we skip schemes with zero cipher suite selector */
 391                 if (!fwcs->cipher)
 392                         continue;
 393
 394                 fw->cs[j++] = *fwcs;
 395         }
 396
 397         return 0;
 398 }
 399
 400 /*
 401  * Gets uCode section from tlv.
 402  */
 403 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 404                                const void *data, enum iwl_ucode_type type,
 405                                int size)
 406 {
 407         struct fw_img_parsing *img;
 408         struct fw_sec *sec;
 409         struct fw_sec_parsing *sec_parse;
 410         size_t alloc_size;
 411
 412         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 413                 return -1;
 414
 415         sec_parse = (struct fw_sec_parsing *)data;
 416
 417         img = &pieces->img[type];
 418
 419         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 420         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 421         if (!sec)
 422                 return -ENOMEM;
 423         img->sec = sec;
 424
 425         sec = &img->sec[img->sec_counter];
 426
 427         sec->offset = le32_to_cpu(sec_parse->offset);
 428         sec->data = sec_parse->data;
 429         sec->size = size - sizeof(sec_parse->offset);
 430
 431         ++img->sec_counter;
 432
 433         return 0;
 434 }
 435
 436 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 437 {
 438         struct iwl_tlv_calib_data *def_calib =
 439                                         (struct iwl_tlv_calib_data *)data;
 440         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 441         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 442                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 443                         ucode_type);
 444                 return -EINVAL;
 445         }
 446         drv->fw.default_calib[ucode_type].flow_trigger =
 447                 def_calib->calib.flow_trigger;
 448         drv->fw.default_calib[ucode_type].event_trigger =
 449                 def_calib->calib.event_trigger;
 450
 451         return 0;
 452 }
 453
 454 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 455                                     struct iwl_ucode_capabilities *capa)
 456 {
 457         const struct iwl_ucode_api *ucode_api = (void *)data;
 458         u32 api_index = le32_to_cpu(ucode_api->api_index);
 459         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 460         int i;
 461
 462         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 463                 IWL_WARN(drv,
 464                          "api flags index %d larger than supported by driver\n",
 465                          api_index);
 466                 return;
 467         }
 468
 469         for (i = 0; i < 32; i++) {
 470                 if (api_flags & BIT(i))
 471                         __set_bit(i + 32 * api_index, capa->_api);
 472         }
 473 }
 474
 475 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 476                                        struct iwl_ucode_capabilities *capa)
 477 {
 478         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 479         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 480         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 481         int i;
 482
 483         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 484                 IWL_WARN(drv,
 485                          "capa flags index %d larger than supported by driver\n",
 486                          api_index);
 487                 return;
 488         }
 489
 490         for (i = 0; i < 32; i++) {
 491                 if (api_flags & BIT(i))
 492                         __set_bit(i + 32 * api_index, capa->_capa);
 493         }
 494 }
 495
 496 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 497                                     const struct firmware *ucode_raw,
 498                                     struct iwl_firmware_pieces *pieces)
 499 {
 500         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 501         u32 api_ver, hdr_size, build;
 502         char buildstr[25];
 503         const u8 *src;
 504
 505         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 506         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 507
 508         switch (api_ver) {
 509         default:
 510                 hdr_size = 28;
 511                 if (ucode_raw->size < hdr_size) {
 512                         IWL_ERR(drv, "File size too small!\n");
 513                         return -EINVAL;
 514                 }
 515                 build = le32_to_cpu(ucode->u.v2.build);
 516                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 517                              le32_to_cpu(ucode->u.v2.inst_size));
 518                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 519                              le32_to_cpu(ucode->u.v2.data_size));
 520                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 521                              le32_to_cpu(ucode->u.v2.init_size));
 522                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 523                              le32_to_cpu(ucode->u.v2.init_data_size));
 524                 src = ucode->u.v2.data;
 525                 break;
 526         case 0:
 527         case 1:
 528         case 2:
 529                 hdr_size = 24;
 530                 if (ucode_raw->size < hdr_size) {
 531                         IWL_ERR(drv, "File size too small!\n");
 532                         return -EINVAL;
 533                 }
 534                 build = 0;
 535                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 536                              le32_to_cpu(ucode->u.v1.inst_size));
 537                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 538                              le32_to_cpu(ucode->u.v1.data_size));
 539                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 540                              le32_to_cpu(ucode->u.v1.init_size));
 541                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 542                              le32_to_cpu(ucode->u.v1.init_data_size));
 543                 src = ucode->u.v1.data;
 544                 break;
 545         }
 546
 547         if (build)
 548                 sprintf(buildstr, " build %u", build);
 549         else
 550                 buildstr[0] = '\0';
 551
 552         snprintf(drv->fw.fw_version,
 553                  sizeof(drv->fw.fw_version),
 554                  "%u.%u.%u.%u%s",
 555                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 556                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 557                  IWL_UCODE_API(drv->fw.ucode_ver),
 558                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 559                  buildstr);
 560
 561         /* Verify size of file vs. image size info in file's header */
 562
 563         if (ucode_raw->size != hdr_size +
 564             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 565             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 566             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 567             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 568
 569                 IWL_ERR(drv,
 570                         "uCode file size %d does not match expected size\n",
 571                         (int)ucode_raw->size);
 572                 return -EINVAL;
 573         }
 574
 575
 576         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 577         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 578         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 579                        IWLAGN_RTC_INST_LOWER_BOUND);
 580         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 581         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 582         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 583                        IWLAGN_RTC_DATA_LOWER_BOUND);
 584         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 585         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 586         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 587                        IWLAGN_RTC_INST_LOWER_BOUND);
 588         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 589         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 590         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 591                        IWLAGN_RTC_DATA_LOWER_BOUND);
 592         return 0;
 593 }
 594
 595 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 596                                 const struct firmware *ucode_raw,
 597                                 struct iwl_firmware_pieces *pieces,
 598                                 struct iwl_ucode_capabilities *capa,
 599                                 bool *usniffer_images)
 600 {
 601         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 602         struct iwl_ucode_tlv *tlv;
 603         size_t len = ucode_raw->size;
 604         const u8 *data;
 605         u32 tlv_len;
 606         u32 usniffer_img;
 607         enum iwl_ucode_tlv_type tlv_type;
 608         const u8 *tlv_data;
 609         char buildstr[25];
 610         u32 build, paging_mem_size;
 611         int num_of_cpus;
 612         bool usniffer_req = false;
 613
 614         if (len < sizeof(*ucode)) {
 615                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 616                 return -EINVAL;
 617         }
 618
 619         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 620                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 621                         le32_to_cpu(ucode->magic));
 622                 return -EINVAL;
 623         }
 624
 625         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 626         memcpy(drv->fw.human_readable, ucode->human_readable,
 627                sizeof(drv->fw.human_readable));
 628         build = le32_to_cpu(ucode->build);
 629
 630         if (build)
 631                 sprintf(buildstr, " build %u", build);
 632         else
 633                 buildstr[0] = '\0';
 634
 635         snprintf(drv->fw.fw_version,
 636                  sizeof(drv->fw.fw_version),
 637                  "%u.%u.%u.%u%s",
 638                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 639                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 640                  IWL_UCODE_API(drv->fw.ucode_ver),
 641                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 642                  buildstr);
 643
 644         data = ucode->data;
 645
 646         len -= sizeof(*ucode);
 647
 648         while (len >= sizeof(*tlv)) {
 649                 len -= sizeof(*tlv);
 650                 tlv = (void *)data;
 651
 652                 tlv_len = le32_to_cpu(tlv->length);
 653                 tlv_type = le32_to_cpu(tlv->type);
 654                 tlv_data = tlv->data;
 655
 656                 if (len < tlv_len) {
 657                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 658                                 len, tlv_len);
 659                         return -EINVAL;
 660                 }
 661                 len -= ALIGN(tlv_len, 4);
 662                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 663
 664                 switch (tlv_type) {
 665                 case IWL_UCODE_TLV_INST:
 666                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 667                                      IWL_UCODE_SECTION_INST, tlv_data);
 668                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 669                                      IWL_UCODE_SECTION_INST, tlv_len);
 670                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 671                                        IWL_UCODE_SECTION_INST,
 672                                        IWLAGN_RTC_INST_LOWER_BOUND);
 673                         break;
 674                 case IWL_UCODE_TLV_DATA:
 675                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 676                                      IWL_UCODE_SECTION_DATA, tlv_data);
 677                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 678                                      IWL_UCODE_SECTION_DATA, tlv_len);
 679                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 680                                        IWL_UCODE_SECTION_DATA,
 681                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 682                         break;
 683                 case IWL_UCODE_TLV_INIT:
 684                         set_sec_data(pieces, IWL_UCODE_INIT,
 685                                      IWL_UCODE_SECTION_INST, tlv_data);
 686                         set_sec_size(pieces, IWL_UCODE_INIT,
 687                                      IWL_UCODE_SECTION_INST, tlv_len);
 688                         set_sec_offset(pieces, IWL_UCODE_INIT,
 689                                        IWL_UCODE_SECTION_INST,
 690                                        IWLAGN_RTC_INST_LOWER_BOUND);
 691                         break;
 692                 case IWL_UCODE_TLV_INIT_DATA:
 693                         set_sec_data(pieces, IWL_UCODE_INIT,
 694                                      IWL_UCODE_SECTION_DATA, tlv_data);
 695                         set_sec_size(pieces, IWL_UCODE_INIT,
 696                                      IWL_UCODE_SECTION_DATA, tlv_len);
 697                         set_sec_offset(pieces, IWL_UCODE_INIT,
 698                                        IWL_UCODE_SECTION_DATA,
 699                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 700                         break;
 701                 case IWL_UCODE_TLV_BOOT:
 702                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 703                         break;
 704                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 705                         if (tlv_len != sizeof(u32))
 706                                 goto invalid_tlv_len;
 707                         capa->max_probe_length =
 708                                         le32_to_cpup((__le32 *)tlv_data);
 709                         break;
 710                 case IWL_UCODE_TLV_PAN:
 711                         if (tlv_len)
 712                                 goto invalid_tlv_len;
 713                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 714                         break;
 715                 case IWL_UCODE_TLV_FLAGS:
 716                         /* must be at least one u32 */
 717                         if (tlv_len < sizeof(u32))
 718                                 goto invalid_tlv_len;
 719                         /* and a proper number of u32s */
 720                         if (tlv_len % sizeof(u32))
 721                                 goto invalid_tlv_len;
 722                         /*
 723                          * This driver only reads the first u32 as
 724                          * right now no more features are defined,
 725                          * if that changes then either the driver
 726                          * will not work with the new firmware, or
 727                          * it'll not take advantage of new features.
 728                          */
 729                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 730                         break;
 731                 case IWL_UCODE_TLV_API_CHANGES_SET:
 732                         if (tlv_len != sizeof(struct iwl_ucode_api))
 733                                 goto invalid_tlv_len;
 734                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
 735                         break;
 736                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 737                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 738                                 goto invalid_tlv_len;
 739                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
 740                         break;
 741                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 742                         if (tlv_len != sizeof(u32))
 743                                 goto invalid_tlv_len;
 744                         pieces->init_evtlog_ptr =
 745                                         le32_to_cpup((__le32 *)tlv_data);
 746                         break;
 747                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 748                         if (tlv_len != sizeof(u32))
 749                                 goto invalid_tlv_len;
 750                         pieces->init_evtlog_size =
 751                                         le32_to_cpup((__le32 *)tlv_data);
 752                         break;
 753                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 754                         if (tlv_len != sizeof(u32))
 755                                 goto invalid_tlv_len;
 756                         pieces->init_errlog_ptr =
 757                                         le32_to_cpup((__le32 *)tlv_data);
 758                         break;
 759                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 760                         if (tlv_len != sizeof(u32))
 761                                 goto invalid_tlv_len;
 762                         pieces->inst_evtlog_ptr =
 763                                         le32_to_cpup((__le32 *)tlv_data);
 764                         break;
 765                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 766                         if (tlv_len != sizeof(u32))
 767                                 goto invalid_tlv_len;
 768                         pieces->inst_evtlog_size =
 769                                         le32_to_cpup((__le32 *)tlv_data);
 770                         break;
 771                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 772                         if (tlv_len != sizeof(u32))
 773                                 goto invalid_tlv_len;
 774                         pieces->inst_errlog_ptr =
 775                                         le32_to_cpup((__le32 *)tlv_data);
 776                         break;
 777                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 778                         if (tlv_len)
 779                                 goto invalid_tlv_len;
 780                         drv->fw.enhance_sensitivity_table = true;
 781                         break;
 782                 case IWL_UCODE_TLV_WOWLAN_INST:
 783                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 784                                      IWL_UCODE_SECTION_INST, tlv_data);
 785                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 786                                      IWL_UCODE_SECTION_INST, tlv_len);
 787                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 788                                        IWL_UCODE_SECTION_INST,
 789                                        IWLAGN_RTC_INST_LOWER_BOUND);
 790                         break;
 791                 case IWL_UCODE_TLV_WOWLAN_DATA:
 792                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 793                                      IWL_UCODE_SECTION_DATA, tlv_data);
 794                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 795                                      IWL_UCODE_SECTION_DATA, tlv_len);
 796                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 797                                        IWL_UCODE_SECTION_DATA,
 798                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 799                         break;
 800                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 801                         if (tlv_len != sizeof(u32))
 802                                 goto invalid_tlv_len;
 803                         capa->standard_phy_calibration_size =
 804                                         le32_to_cpup((__le32 *)tlv_data);
 805                         break;
 806                 case IWL_UCODE_TLV_SEC_RT:
 807                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 808                                             tlv_len);
 809                         drv->fw.type = IWL_FW_MVM;
 810                         break;
 811                 case IWL_UCODE_TLV_SEC_INIT:
 812                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 813                                             tlv_len);
 814                         drv->fw.type = IWL_FW_MVM;
 815                         break;
 816                 case IWL_UCODE_TLV_SEC_WOWLAN:
 817                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 818                                             tlv_len);
 819                         drv->fw.type = IWL_FW_MVM;
 820                         break;
 821                 case IWL_UCODE_TLV_DEF_CALIB:
 822                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 823                                 goto invalid_tlv_len;
 824                         if (iwl_set_default_calib(drv, tlv_data))
 825                                 goto tlv_error;
 826                         break;
 827                 case IWL_UCODE_TLV_PHY_SKU:
 828                         if (tlv_len != sizeof(u32))
 829                                 goto invalid_tlv_len;
 830                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 831                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 832                                                 FW_PHY_CFG_TX_CHAIN) >>
 833                                                 FW_PHY_CFG_TX_CHAIN_POS;
 834                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 835                                                 FW_PHY_CFG_RX_CHAIN) >>
 836                                                 FW_PHY_CFG_RX_CHAIN_POS;
 837                         break;
 838                 case IWL_UCODE_TLV_SECURE_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_SECURE_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_SECURE_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_NUM_OF_CPU:
 854                         if (tlv_len != sizeof(u32))
 855                                 goto invalid_tlv_len;
 856                         num_of_cpus =
 857                                 le32_to_cpup((__le32 *)tlv_data);
 858
 859                         if (num_of_cpus == 2) {
 860                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 861                                         true;
 862                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 863                                         true;
 864                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 865                                         true;
 866                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 867                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 868                                 return -EINVAL;
 869                         }
 870                         break;
 871                 case IWL_UCODE_TLV_CSCHEME:
 872                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 873                                 goto invalid_tlv_len;
 874                         break;
 875                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 876                         if (tlv_len != sizeof(u32))
 877                                 goto invalid_tlv_len;
 878                         capa->n_scan_channels =
 879                                 le32_to_cpup((__le32 *)tlv_data);
 880                         break;
 881                 case IWL_UCODE_TLV_FW_VERSION: {
 882                         __le32 *ptr = (void *)tlv_data;
 883                         u32 major, minor;
 884                         u8 local_comp;
 885
 886                         if (tlv_len != sizeof(u32) * 3)
 887                                 goto invalid_tlv_len;
 888
 889                         major = le32_to_cpup(ptr++);
 890                         minor = le32_to_cpup(ptr++);
 891                         local_comp = le32_to_cpup(ptr);
 892
 893                         if (major >= 35)
 894                                 snprintf(drv->fw.fw_version,
 895                                          sizeof(drv->fw.fw_version),
 896                                         "%u.%08x.%u", major, minor, local_comp);
 897                         else
 898                                 snprintf(drv->fw.fw_version,
 899                                          sizeof(drv->fw.fw_version),
 900                                         "%u.%u.%u", major, minor, local_comp);
 901                         break;
 902                         }
 903                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 904                         struct iwl_fw_dbg_dest_tlv *dest = NULL;
 905                         struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
 906                         u8 mon_mode;
 907
 908                         pieces->dbg_dest_ver = (u8 *)tlv_data;
 909                         if (*pieces->dbg_dest_ver == 1) {
 910                                 dest = (void *)tlv_data;
 911                         } else if (*pieces->dbg_dest_ver == 0) {
 912                                 dest_v1 = (void *)tlv_data;
 913                         } else {
 914                                 IWL_ERR(drv,
 915                                         "The version is %d, and it is invalid\n",
 916                                         *pieces->dbg_dest_ver);
 917                                 break;
 918                         }
 919
 920                         if (pieces->dbg_dest_tlv_init) {
 921                                 IWL_ERR(drv,
 922                                         "dbg destination ignored, already exists\n");
 923                                 break;
 924                         }
 925
 926                         pieces->dbg_dest_tlv_init = true;
 927
 928                         if (dest_v1) {
 929                                 pieces->dbg_dest_tlv_v1 = dest_v1;
 930                                 mon_mode = dest_v1->monitor_mode;
 931                         } else {
 932                                 pieces->dbg_dest_tlv = dest;
 933                                 mon_mode = dest->monitor_mode;
 934                         }
 935
 936                         IWL_INFO(drv, "Found debug destination: %s\n",
 937                                  get_fw_dbg_mode_string(mon_mode));
 938
 939                         drv->fw.dbg.n_dest_reg = (dest_v1) ?
 940                                 tlv_len -
 941                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
 942                                          reg_ops) :
 943                                 tlv_len -
 944                                 offsetof(struct iwl_fw_dbg_dest_tlv,
 945                                          reg_ops);
 946
 947                         drv->fw.dbg.n_dest_reg /=
 948                                 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
 949
 950                         break;
 951                         }
 952                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 953                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 954
 955                         if (!pieces->dbg_dest_tlv_init) {
 956                                 IWL_ERR(drv,
 957                                         "Ignore dbg config %d - no destination configured\n",
 958                                         conf->id);
 959                                 break;
 960                         }
 961
 962                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
 963                                 IWL_ERR(drv,
 964                                         "Skip unknown configuration: %d\n",
 965                                         conf->id);
 966                                 break;
 967                         }
 968
 969                         if (pieces->dbg_conf_tlv[conf->id]) {
 970                                 IWL_ERR(drv,
 971                                         "Ignore duplicate dbg config %d\n",
 972                                         conf->id);
 973                                 break;
 974                         }
 975
 976                         if (conf->usniffer)
 977                                 usniffer_req = true;
 978
 979                         IWL_INFO(drv, "Found debug configuration: %d\n",
 980                                  conf->id);
 981
 982                         pieces->dbg_conf_tlv[conf->id] = conf;
 983                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 984                         break;
 985                         }
 986                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 987                         struct iwl_fw_dbg_trigger_tlv *trigger =
 988                                 (void *)tlv_data;
 989                         u32 trigger_id = le32_to_cpu(trigger->id);
 990
 991                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
 992                                 IWL_ERR(drv,
 993                                         "Skip unknown trigger: %u\n",
 994                                         trigger->id);
 995                                 break;
 996                         }
 997
 998                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 999                                 IWL_ERR(drv,
1000                                         "Ignore duplicate dbg trigger %u\n",
1001                                         trigger->id);
1002                                 break;
1003                         }
1004
1005                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1006
1007                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1008                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1009                         break;
1010                         }
1011                 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
1012                         if (tlv_len != sizeof(u32)) {
1013                                 IWL_ERR(drv,
1014                                         "dbg lst mask size incorrect, skip\n");
1015                                 break;
1016                         }
1017
1018                         drv->fw.dbg.dump_mask =
1019                                 le32_to_cpup((__le32 *)tlv_data);
1020                         break;
1021                         }
1022                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1023                         *usniffer_images = true;
1024                         iwl_store_ucode_sec(pieces, tlv_data,
1025                                             IWL_UCODE_REGULAR_USNIFFER,
1026                                             tlv_len);
1027                         break;
1028                 case IWL_UCODE_TLV_PAGING:
1029                         if (tlv_len != sizeof(u32))
1030                                 goto invalid_tlv_len;
1031                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1032
1033                         IWL_DEBUG_FW(drv,
1034                                      "Paging: paging enabled (size = %u bytes)\n",
1035                                      paging_mem_size);
1036
1037                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1038                                 IWL_ERR(drv,
1039                                         "Paging: driver supports up to %lu bytes for paging image\n",
1040                                         MAX_PAGING_IMAGE_SIZE);
1041                                 return -EINVAL;
1042                         }
1043
1044                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1045                                 IWL_ERR(drv,
1046                                         "Paging: image isn't multiple %lu\n",
1047                                         FW_PAGING_SIZE);
1048                                 return -EINVAL;
1049                         }
1050
1051                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1052                                 paging_mem_size;
1053                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1054                         drv->fw.img[usniffer_img].paging_mem_size =
1055                                 paging_mem_size;
1056                         break;
1057                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1058                         /* ignored */
1059                         break;
1060                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1061                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1062                                 (void *)tlv_data;
1063                         size_t size;
1064                         struct iwl_fw_dbg_mem_seg_tlv *n;
1065
1066                         if (tlv_len != (sizeof(*dbg_mem)))
1067                                 goto invalid_tlv_len;
1068
1069                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1070                                        dbg_mem->data_type);
1071
1072                         size = sizeof(*pieces->dbg_mem_tlv) *
1073                                (pieces->n_mem_tlv + 1);
1074                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1075                         if (!n)
1076                                 return -ENOMEM;
1077                         pieces->dbg_mem_tlv = n;
1078                         pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1079                         pieces->n_mem_tlv++;
1080                         break;
1081                         }
1082                 case IWL_UCODE_TLV_IML: {
1083                         drv->fw.iml_len = tlv_len;
1084                         drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1085                         if (!drv->fw.iml)
1086                                 return -ENOMEM;
1087                         break;
1088                         }
1089                 default:
1090                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1091                         break;
1092                 }
1093         }
1094
1095         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1096             usniffer_req && !*usniffer_images) {
1097                 IWL_ERR(drv,
1098                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1099                 return -EINVAL;
1100         }
1101
1102         if (len) {
1103                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1104                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1105                 return -EINVAL;
1106         }
1107
1108         return 0;
1109
1110  invalid_tlv_len:
1111         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1112  tlv_error:
1113         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1114
1115         return -EINVAL;
1116 }
1117
1118 static int iwl_alloc_ucode(struct iwl_drv *drv,
1119                            struct iwl_firmware_pieces *pieces,
1120                            enum iwl_ucode_type type)
1121 {
1122         int i;
1123         struct fw_desc *sec;
1124
1125         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1126         if (!sec)
1127                 return -ENOMEM;
1128         drv->fw.img[type].sec = sec;
1129         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1130
1131         for (i = 0; i < pieces->img[type].sec_counter; i++)
1132                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1133                         return -ENOMEM;
1134
1135         return 0;
1136 }
1137
1138 static int validate_sec_sizes(struct iwl_drv *drv,
1139                               struct iwl_firmware_pieces *pieces,
1140                               const struct iwl_cfg *cfg)
1141 {
1142         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1143                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1144                              IWL_UCODE_SECTION_INST));
1145         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1146                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1147                              IWL_UCODE_SECTION_DATA));
1148         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1149                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1150         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1151                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1152
1153         /* Verify that uCode images will fit in card's SRAM. */
1154         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1155             cfg->max_inst_size) {
1156                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1157                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1158                                      IWL_UCODE_SECTION_INST));
1159                 return -1;
1160         }
1161
1162         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1163             cfg->max_data_size) {
1164                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1165                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1166                                      IWL_UCODE_SECTION_DATA));
1167                 return -1;
1168         }
1169
1170         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1171              cfg->max_inst_size) {
1172                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1173                         get_sec_size(pieces, IWL_UCODE_INIT,
1174                                      IWL_UCODE_SECTION_INST));
1175                 return -1;
1176         }
1177
1178         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1179             cfg->max_data_size) {
1180                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1181                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1182                                      IWL_UCODE_SECTION_DATA));
1183                 return -1;
1184         }
1185         return 0;
1186 }
1187
1188 static struct iwl_op_mode *
1189 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1190 {
1191         const struct iwl_op_mode_ops *ops = op->ops;
1192         struct dentry *dbgfs_dir = NULL;
1193         struct iwl_op_mode *op_mode = NULL;
1194
1195 #ifdef CONFIG_IWLWIFI_DEBUGFS
1196         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1197                                                 drv->dbgfs_drv);
1198         if (!drv->dbgfs_op_mode) {
1199                 IWL_ERR(drv,
1200                         "failed to create opmode debugfs directory\n");
1201                 return op_mode;
1202         }
1203         dbgfs_dir = drv->dbgfs_op_mode;
1204 #endif
1205
1206         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1207
1208 #ifdef CONFIG_IWLWIFI_DEBUGFS
1209         if (!op_mode) {
1210                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1211                 drv->dbgfs_op_mode = NULL;
1212         }
1213 #endif
1214
1215         return op_mode;
1216 }
1217
1218 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1219 {
1220         /* op_mode can be NULL if its start failed */
1221         if (drv->op_mode) {
1222                 iwl_op_mode_stop(drv->op_mode);
1223                 drv->op_mode = NULL;
1224
1225 #ifdef CONFIG_IWLWIFI_DEBUGFS
1226                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1227                 drv->dbgfs_op_mode = NULL;
1228 #endif
1229         }
1230 }
1231
1232 /**
1233  * iwl_req_fw_callback - callback when firmware was loaded
1234  *
1235  * If loaded successfully, copies the firmware into buffers
1236  * for the card to fetch (via DMA).
1237  */
1238 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1239 {
1240         struct iwl_drv *drv = context;
1241         struct iwl_fw *fw = &drv->fw;
1242         struct iwl_ucode_header *ucode;
1243         struct iwlwifi_opmode_table *op;
1244         int err;
1245         struct iwl_firmware_pieces *pieces;
1246         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1247         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1248         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1249         u32 api_ver;
1250         int i;
1251         bool load_module = false;
1252         bool usniffer_images = false;
1253
1254         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1255         fw->ucode_capa.standard_phy_calibration_size =
1256                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1257         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1258         /* dump all fw memory areas by default except d3 debug data */
1259         fw->dbg.dump_mask = 0xfffdffff;
1260
1261         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1262         if (!pieces)
1263                 goto out_free_fw;
1264
1265         if (!ucode_raw)
1266                 goto try_again;
1267
1268         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1269                        drv->firmware_name, ucode_raw->size);
1270
1271         /* Make sure that we got at least the API version number */
1272         if (ucode_raw->size < 4) {
1273                 IWL_ERR(drv, "File size way too small!\n");
1274                 goto try_again;
1275         }
1276
1277         /* Data from ucode file:  header followed by uCode images */
1278         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1279
1280         if (ucode->ver)
1281                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1282         else
1283                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1284                                              &fw->ucode_capa, &usniffer_images);
1285
1286         if (err)
1287                 goto try_again;
1288
1289         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1290                 api_ver = drv->fw.ucode_ver;
1291         else
1292                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1293
1294         /*
1295          * api_ver should match the api version forming part of the
1296          * firmware filename ... but we don't check for that and only rely
1297          * on the API version read from firmware header from here on forward
1298          */
1299         if (api_ver < api_min || api_ver > api_max) {
1300                 IWL_ERR(drv,
1301                         "Driver unable to support your firmware API. "
1302                         "Driver supports v%u, firmware is v%u.\n",
1303                         api_max, api_ver);
1304                 goto try_again;
1305         }
1306
1307         /*
1308          * In mvm uCode there is no difference between data and instructions
1309          * sections.
1310          */
1311         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1312                                                          drv->trans->cfg))
1313                 goto try_again;
1314
1315         /* Allocate ucode buffers for card's bus-master loading ... */
1316
1317         /* Runtime instructions and 2 copies of data:
1318          * 1) unmodified from disk
1319          * 2) backup cache for save/restore during power-downs
1320          */
1321         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1322                 if (iwl_alloc_ucode(drv, pieces, i))
1323                         goto out_free_fw;
1324
1325         if (pieces->dbg_dest_tlv_init) {
1326                 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1327                         sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1328                         drv->fw.dbg.n_dest_reg;
1329
1330                 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1331
1332                 if (!drv->fw.dbg.dest_tlv)
1333                         goto out_free_fw;
1334
1335                 if (*pieces->dbg_dest_ver == 0) {
1336                         memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1337                                dbg_dest_size);
1338                 } else {
1339                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1340                                 drv->fw.dbg.dest_tlv;
1341
1342                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1343                         dest_tlv->monitor_mode =
1344                                 pieces->dbg_dest_tlv->monitor_mode;
1345                         dest_tlv->size_power =
1346                                 pieces->dbg_dest_tlv->size_power;
1347                         dest_tlv->wrap_count =
1348                                 pieces->dbg_dest_tlv->wrap_count;
1349                         dest_tlv->write_ptr_reg =
1350                                 pieces->dbg_dest_tlv->write_ptr_reg;
1351                         dest_tlv->base_shift =
1352                                 pieces->dbg_dest_tlv->base_shift;
1353                         memcpy(dest_tlv->reg_ops,
1354                                pieces->dbg_dest_tlv->reg_ops,
1355                                sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1356                                drv->fw.dbg.n_dest_reg);
1357
1358                         /* In version 1 of the destination tlv, which is
1359                          * relevant for internal buffer exclusively,
1360                          * the base address is part of given with the length
1361                          * of the buffer, and the size shift is give instead of
1362                          * end shift. We now store these values in base_reg,
1363                          * and end shift, and when dumping the data we'll
1364                          * manipulate it for extracting both the length and
1365                          * base address */
1366                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1367                         dest_tlv->end_shift =
1368                                 pieces->dbg_dest_tlv->size_shift;
1369                 }
1370         }
1371
1372         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1373                 if (pieces->dbg_conf_tlv[i]) {
1374                         drv->fw.dbg.conf_tlv[i] =
1375                                 kmemdup(pieces->dbg_conf_tlv[i],
1376                                         pieces->dbg_conf_tlv_len[i],
1377                                         GFP_KERNEL);
1378                         if (!pieces->dbg_conf_tlv_len[i])
1379                                 goto out_free_fw;
1380                 }
1381         }
1382
1383         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1384
1385         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1386                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1387         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1388         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1389                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1390         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1391                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1392         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1393                 sizeof(struct iwl_fw_dbg_trigger_stats);
1394         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1395                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1396         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1397                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1398         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1399                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1400         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1401                 sizeof(struct iwl_fw_dbg_trigger_ba);
1402         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1403                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1404
1405         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1406                 if (pieces->dbg_trigger_tlv[i]) {
1407                         /*
1408                          * If the trigger isn't long enough, WARN and exit.
1409                          * Someone is trying to debug something and he won't
1410                          * be able to catch the bug he is trying to chase.
1411                          * We'd better be noisy to be sure he knows what's
1412                          * going on.
1413                          */
1414                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1415                                     (trigger_tlv_sz[i] +
1416                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1417                                 goto out_free_fw;
1418                         drv->fw.dbg.trigger_tlv_len[i] =
1419                                 pieces->dbg_trigger_tlv_len[i];
1420                         drv->fw.dbg.trigger_tlv[i] =
1421                                 kmemdup(pieces->dbg_trigger_tlv[i],
1422                                         drv->fw.dbg.trigger_tlv_len[i],
1423                                         GFP_KERNEL);
1424                         if (!drv->fw.dbg.trigger_tlv[i])
1425                                 goto out_free_fw;
1426                 }
1427         }
1428
1429         /* Now that we can no longer fail, copy information */
1430
1431         drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1432         pieces->dbg_mem_tlv = NULL;
1433         drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1434
1435         /*
1436          * The (size - 16) / 12 formula is based on the information recorded
1437          * for each event, which is of mode 1 (including timestamp) for all
1438          * new microcodes that include this information.
1439          */
1440         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1441         if (pieces->init_evtlog_size)
1442                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1443         else
1444                 fw->init_evtlog_size =
1445                         drv->trans->cfg->base_params->max_event_log_size;
1446         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1447         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1448         if (pieces->inst_evtlog_size)
1449                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1450         else
1451                 fw->inst_evtlog_size =
1452                         drv->trans->cfg->base_params->max_event_log_size;
1453         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1454
1455         /*
1456          * figure out the offset of chain noise reset and gain commands
1457          * base on the size of standard phy calibration commands table size
1458          */
1459         if (fw->ucode_capa.standard_phy_calibration_size >
1460             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1461                 fw->ucode_capa.standard_phy_calibration_size =
1462                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1463
1464         /* We have our copies now, allow OS release its copies */
1465         release_firmware(ucode_raw);
1466
1467         mutex_lock(&iwlwifi_opmode_table_mtx);
1468         switch (fw->type) {
1469         case IWL_FW_DVM:
1470                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1471                 break;
1472         default:
1473                 WARN(1, "Invalid fw type %d\n", fw->type);
1474         case IWL_FW_MVM:
1475                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1476                 break;
1477         }
1478
1479         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1480                  drv->fw.fw_version, op->name);
1481
1482         /* add this device to the list of devices using this op_mode */
1483         list_add_tail(&drv->list, &op->drv);
1484
1485         if (op->ops) {
1486                 drv->op_mode = _iwl_op_mode_start(drv, op);
1487
1488                 if (!drv->op_mode) {
1489                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1490                         goto out_unbind;
1491                 }
1492         } else {
1493                 load_module = true;
1494         }
1495         mutex_unlock(&iwlwifi_opmode_table_mtx);
1496
1497         /*
1498          * Complete the firmware request last so that
1499          * a driver unbind (stop) doesn't run while we
1500          * are doing the start() above.
1501          */
1502         complete(&drv->request_firmware_complete);
1503
1504         /*
1505          * Load the module last so we don't block anything
1506          * else from proceeding if the module fails to load
1507          * or hangs loading.
1508          */
1509         if (load_module) {
1510                 request_module("%s", op->name);
1511 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1512                 if (err)
1513                         IWL_ERR(drv,
1514                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1515                                 op->name, err);
1516 #endif
1517         }
1518         goto free;
1519
1520  try_again:
1521         /* try next, if any */
1522         release_firmware(ucode_raw);
1523         if (iwl_request_firmware(drv, false))
1524                 goto out_unbind;
1525         goto free;
1526
1527  out_free_fw:
1528         iwl_dealloc_ucode(drv);
1529         release_firmware(ucode_raw);
1530  out_unbind:
1531         complete(&drv->request_firmware_complete);
1532         device_release_driver(drv->trans->dev);
1533  free:
1534         if (pieces) {
1535                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1536                         kfree(pieces->img[i].sec);
1537                 kfree(pieces->dbg_mem_tlv);
1538                 kfree(pieces);
1539         }
1540 }
1541
1542 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1543 {
1544         struct iwl_drv *drv;
1545         int ret;
1546
1547         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1548         if (!drv) {
1549                 ret = -ENOMEM;
1550                 goto err;
1551         }
1552
1553         drv->trans = trans;
1554         drv->dev = trans->dev;
1555
1556         init_completion(&drv->request_firmware_complete);
1557         INIT_LIST_HEAD(&drv->list);
1558
1559 #ifdef CONFIG_IWLWIFI_DEBUGFS
1560         /* Create the device debugfs entries. */
1561         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1562                                             iwl_dbgfs_root);
1563
1564         if (!drv->dbgfs_drv) {
1565                 IWL_ERR(drv, "failed to create debugfs directory\n");
1566                 ret = -ENOMEM;
1567                 goto err_free_drv;
1568         }
1569
1570         /* Create transport layer debugfs dir */
1571         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1572
1573         if (!drv->trans->dbgfs_dir) {
1574                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1575                 ret = -ENOMEM;
1576                 goto err_free_dbgfs;
1577         }
1578 #endif
1579
1580         ret = iwl_request_firmware(drv, true);
1581         if (ret) {
1582                 IWL_ERR(trans, "Couldn't request the fw\n");
1583                 goto err_fw;
1584         }
1585
1586         return drv;
1587
1588 err_fw:
1589 #ifdef CONFIG_IWLWIFI_DEBUGFS
1590 err_free_dbgfs:
1591         debugfs_remove_recursive(drv->dbgfs_drv);
1592 err_free_drv:
1593 #endif
1594         kfree(drv);
1595 err:
1596         return ERR_PTR(ret);
1597 }
1598
1599 void iwl_drv_stop(struct iwl_drv *drv)
1600 {
1601         wait_for_completion(&drv->request_firmware_complete);
1602
1603         _iwl_op_mode_stop(drv);
1604
1605         iwl_dealloc_ucode(drv);
1606
1607         mutex_lock(&iwlwifi_opmode_table_mtx);
1608         /*
1609          * List is empty (this item wasn't added)
1610          * when firmware loading failed -- in that
1611          * case we can't remove it from any list.
1612          */
1613         if (!list_empty(&drv->list))
1614                 list_del(&drv->list);
1615         mutex_unlock(&iwlwifi_opmode_table_mtx);
1616
1617 #ifdef CONFIG_IWLWIFI_DEBUGFS
1618         debugfs_remove_recursive(drv->dbgfs_drv);
1619 #endif
1620
1621         kfree(drv);
1622 }
1623
1624
1625 /* shared module parameters */
1626 struct iwl_mod_params iwlwifi_mod_params = {
1627         .fw_restart = true,
1628         .bt_coex_active = true,
1629         .power_level = IWL_POWER_INDEX_1,
1630         .d0i3_disable = true,
1631         .d0i3_timeout = 1000,
1632         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1633         /* the rest are 0 by default */
1634 };
1635 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1636
1637 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1638 {
1639         int i;
1640         struct iwl_drv *drv;
1641         struct iwlwifi_opmode_table *op;
1642
1643         mutex_lock(&iwlwifi_opmode_table_mtx);
1644         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1645                 op = &iwlwifi_opmode_table[i];
1646                 if (strcmp(op->name, name))
1647                         continue;
1648                 op->ops = ops;
1649                 /* TODO: need to handle exceptional case */
1650                 list_for_each_entry(drv, &op->drv, list)
1651                         drv->op_mode = _iwl_op_mode_start(drv, op);
1652
1653                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1654                 return 0;
1655         }
1656         mutex_unlock(&iwlwifi_opmode_table_mtx);
1657         return -EIO;
1658 }
1659 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1660
1661 void iwl_opmode_deregister(const char *name)
1662 {
1663         int i;
1664         struct iwl_drv *drv;
1665
1666         mutex_lock(&iwlwifi_opmode_table_mtx);
1667         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1668                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1669                         continue;
1670                 iwlwifi_opmode_table[i].ops = NULL;
1671
1672                 /* call the stop routine for all devices */
1673                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1674                         _iwl_op_mode_stop(drv);
1675
1676                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1677                 return;
1678         }
1679         mutex_unlock(&iwlwifi_opmode_table_mtx);
1680 }
1681 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1682
1683 static int __init iwl_drv_init(void)
1684 {
1685         int i;
1686
1687         mutex_init(&iwlwifi_opmode_table_mtx);
1688
1689         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1690                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1691
1692         pr_info(DRV_DESCRIPTION "\n");
1693         pr_info(DRV_COPYRIGHT "\n");
1694
1695 #ifdef CONFIG_IWLWIFI_DEBUGFS
1696         /* Create the root of iwlwifi debugfs subsystem. */
1697         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1698
1699         if (!iwl_dbgfs_root)
1700                 return -EFAULT;
1701 #endif
1702
1703         return iwl_pci_register_driver();
1704 }
1705 module_init(iwl_drv_init);
1706
1707 static void __exit iwl_drv_exit(void)
1708 {
1709         iwl_pci_unregister_driver();
1710
1711 #ifdef CONFIG_IWLWIFI_DEBUGFS
1712         debugfs_remove_recursive(iwl_dbgfs_root);
1713 #endif
1714 }
1715 module_exit(iwl_drv_exit);
1716
1717 #ifdef CONFIG_IWLWIFI_DEBUG
1718 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1719 MODULE_PARM_DESC(debug, "debug output mask");
1720 #endif
1721
1722 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1723 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1724 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1725 MODULE_PARM_DESC(11n_disable,
1726         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1727 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1728 MODULE_PARM_DESC(amsdu_size,
1729                  "amsdu size 0: 12K for multi Rx queue devices, 2K for 22560 devices, "
1730                  "4K for other devices 1:4K 2:8K 3:12K 4: 2K (default 0)");
1731 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1732 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1733
1734 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
1735                    int, 0444);
1736 MODULE_PARM_DESC(antenna_coupling,
1737                  "specify antenna coupling in dB (default: 0 dB)");
1738
1739 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1740 MODULE_PARM_DESC(nvm_file, "NVM file name");
1741
1742 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, bool, 0444);
1743 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1744
1745 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444);
1746 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1747
1748 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1749 MODULE_PARM_DESC(uapsd_disable,
1750                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1751
1752 /*
1753  * set bt_coex_active to true, uCode will do kill/defer
1754  * every time the priority line is asserted (BT is sending signals on the
1755  * priority line in the PCIx).
1756  * set bt_coex_active to false, uCode will ignore the BT activity and
1757  * perform the normal operation
1758  *
1759  * User might experience transmit issue on some platform due to WiFi/BT
1760  * co-exist problem. The possible behaviors are:
1761  *   Able to scan and finding all the available AP
1762  *   Not able to associate with any AP
1763  * On those platforms, WiFi communication can be restored by set
1764  * "bt_coex_active" module parameter to "false"
1765  *
1766  * default: bt_coex_active = true (BT_COEX_ENABLE)
1767  */
1768 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1769                    bool, 0444);
1770 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1771
1772 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1773 MODULE_PARM_DESC(led_mode, "0=system default, "
1774                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1775
1776 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1777 MODULE_PARM_DESC(power_save,
1778                  "enable WiFi power management (default: disable)");
1779
1780 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1781 MODULE_PARM_DESC(power_level,
1782                  "default power save level (range from 1 - 5, default: 1)");
1783
1784 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444);
1785 MODULE_PARM_DESC(fw_monitor,
1786                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1787
1788 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout, uint, 0444);
1789 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1790
1791 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1792 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1793
1794 module_param_named(remove_when_gone,
1795                    iwlwifi_mod_params.remove_when_gone, bool,
1796                    0444);
1797 MODULE_PARM_DESC(remove_when_gone,
1798                  "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1799
1800 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1801                    S_IRUGO);
1802 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");