drivers/net/wireless/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 - 2012 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called LICENSE.GPL.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63 #include <linux/completion.h>
  64 #include <linux/dma-mapping.h>
  65 #include <linux/firmware.h>
  66 #include <linux/module.h>
  67
  68 #include "iwl-drv.h"
  69 #include "iwl-debug.h"
  70 #include "iwl-trans.h"
  71 #include "iwl-op-mode.h"
  72 #include "iwl-agn-hw.h"
  73 #include "iwl-fw.h"
  74 #include "iwl-config.h"
  75 #include "iwl-modparams.h"
  76
  77 /* private includes */
  78 #include "iwl-fw-file.h"
  79
  80 /******************************************************************************
  81  *
  82  * module boiler plate
  83  *
  84  ******************************************************************************/
  85
  86 /*
  87  * module name, copyright, version, etc.
  88  */
  89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  90
  91 #ifdef CONFIG_IWLWIFI_DEBUG
  92 #define VD "d"
  93 #else
  94 #define VD
  95 #endif
  96
  97 #define DRV_VERSION     IWLWIFI_VERSION VD
  98
  99 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 100 MODULE_VERSION(DRV_VERSION);
 101 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 102 MODULE_LICENSE("GPL");
 103
 104 /**
 105  * struct iwl_drv - drv common data
 106  * @list: list of drv structures using this opmode
 107  * @fw: the iwl_fw structure
 108  * @op_mode: the running op_mode
 109  * @trans: transport layer
 110  * @dev: for debug prints only
 111  * @cfg: configuration struct
 112  * @fw_index: firmware revision to try loading
 113  * @firmware_name: composite filename of ucode file to load
 114  * @request_firmware_complete: the firmware has been obtained from user space
 115  */
 116 struct iwl_drv {
 117         struct list_head list;
 118         struct iwl_fw fw;
 119
 120         struct iwl_op_mode *op_mode;
 121         struct iwl_trans *trans;
 122         struct device *dev;
 123         const struct iwl_cfg *cfg;
 124
 125         int fw_index;                   /* firmware we're trying to load */
 126         char firmware_name[25];         /* name of firmware file to load */
 127
 128         struct completion request_firmware_complete;
 129 };
 130
 131 #define DVM_OP_MODE     0
 132 #define MVM_OP_MODE     1
 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         { .name = "iwldvm", .ops = NULL },
 142         { .name = "iwlmvm", .ops = NULL },
 143 };
 144
 145 /*
 146  * struct fw_sec: Just for the image parsing proccess.
 147  * For the fw storage we are using struct fw_desc.
 148  */
 149 struct fw_sec {
 150         const void *data;               /* the sec data */
 151         size_t size;                    /* section size */
 152         u32 offset;                     /* offset of writing in the device */
 153 };
 154
 155 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 156 {
 157         if (desc->v_addr)
 158                 dma_free_coherent(drv->trans->dev, desc->len,
 159                                   desc->v_addr, desc->p_addr);
 160         desc->v_addr = 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 < IWL_UCODE_SECTION_MAX; i++)
 168                 iwl_free_fw_desc(drv, &img->sec[i]);
 169 }
 170
 171 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 172 {
 173         int i;
 174         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 175                 iwl_free_fw_img(drv, drv->fw.img + i);
 176 }
 177
 178 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 179                       struct fw_sec *sec)
 180 {
 181         if (!sec || !sec->size) {
 182                 desc->v_addr = NULL;
 183                 return -EINVAL;
 184         }
 185
 186         desc->v_addr = dma_alloc_coherent(drv->trans->dev, sec->size,
 187                                           &desc->p_addr, GFP_KERNEL);
 188         if (!desc->v_addr)
 189                 return -ENOMEM;
 190
 191         desc->len = sec->size;
 192         desc->offset = sec->offset;
 193         memcpy(desc->v_addr, sec->data, sec->size);
 194         return 0;
 195 }
 196
 197 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
 198
 199 #define UCODE_EXPERIMENTAL_INDEX        100
 200 #define UCODE_EXPERIMENTAL_TAG          "exp"
 201
 202 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 203 {
 204         const char *name_pre = drv->cfg->fw_name_pre;
 205         char tag[8];
 206
 207         if (first) {
 208 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
 209                 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
 210                 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
 211         } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
 212 #endif
 213                 drv->fw_index = drv->cfg->ucode_api_max;
 214                 sprintf(tag, "%d", drv->fw_index);
 215         } else {
 216                 drv->fw_index--;
 217                 sprintf(tag, "%d", drv->fw_index);
 218         }
 219
 220         if (drv->fw_index < drv->cfg->ucode_api_min) {
 221                 IWL_ERR(drv, "no suitable firmware found!\n");
 222                 return -ENOENT;
 223         }
 224
 225         sprintf(drv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
 226
 227         IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
 228                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 229                                 ? "EXPERIMENTAL " : "",
 230                        drv->firmware_name);
 231
 232         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 233                                        drv->trans->dev,
 234                                        GFP_KERNEL, drv, iwl_ucode_callback);
 235 }
 236
 237 struct fw_img_parsing {
 238         struct fw_sec sec[IWL_UCODE_SECTION_MAX];
 239         int sec_counter;
 240 };
 241
 242 /*
 243  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 244  */
 245 struct fw_sec_parsing {
 246         __le32 offset;
 247         const u8 data[];
 248 } __packed;
 249
 250 /**
 251  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 252  *
 253  * @ucode_type: the uCode to which the following default calib relates.
 254  * @calib: default calibrations.
 255  */
 256 struct iwl_tlv_calib_data {
 257         __le32 ucode_type;
 258         __le64 calib;
 259 } __packed;
 260
 261 struct iwl_firmware_pieces {
 262         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 263
 264         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 265         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 266 };
 267
 268 /*
 269  * These functions are just to extract uCode section data from the pieces
 270  * structure.
 271  */
 272 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 273                               enum iwl_ucode_type type,
 274                               int  sec)
 275 {
 276         return &pieces->img[type].sec[sec];
 277 }
 278
 279 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 280                          enum iwl_ucode_type type,
 281                          int sec,
 282                          const void *data)
 283 {
 284         pieces->img[type].sec[sec].data = data;
 285 }
 286
 287 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 288                          enum iwl_ucode_type type,
 289                          int sec,
 290                          size_t size)
 291 {
 292         pieces->img[type].sec[sec].size = size;
 293 }
 294
 295 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 296                            enum iwl_ucode_type type,
 297                            int sec)
 298 {
 299         return pieces->img[type].sec[sec].size;
 300 }
 301
 302 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 303                            enum iwl_ucode_type type,
 304                            int sec,
 305                            u32 offset)
 306 {
 307         pieces->img[type].sec[sec].offset = offset;
 308 }
 309
 310 /*
 311  * Gets uCode section from tlv.
 312  */
 313 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 314                                const void *data, enum iwl_ucode_type type,
 315                                int size)
 316 {
 317         struct fw_img_parsing *img;
 318         struct fw_sec *sec;
 319         struct fw_sec_parsing *sec_parse;
 320
 321         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 322                 return -1;
 323
 324         sec_parse = (struct fw_sec_parsing *)data;
 325
 326         img = &pieces->img[type];
 327         sec = &img->sec[img->sec_counter];
 328
 329         sec->offset = le32_to_cpu(sec_parse->offset);
 330         sec->data = sec_parse->data;
 331         sec->size = size - sizeof(sec_parse->offset);
 332
 333         ++img->sec_counter;
 334
 335         return 0;
 336 }
 337
 338 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 339 {
 340         struct iwl_tlv_calib_data *def_calib =
 341                                         (struct iwl_tlv_calib_data *)data;
 342         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 343         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 344                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 345                         ucode_type);
 346                 return -EINVAL;
 347         }
 348         drv->fw.default_calib[ucode_type] = le64_to_cpu(def_calib->calib);
 349         return 0;
 350 }
 351
 352 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 353                                     const struct firmware *ucode_raw,
 354                                     struct iwl_firmware_pieces *pieces)
 355 {
 356         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 357         u32 api_ver, hdr_size, build;
 358         char buildstr[25];
 359         const u8 *src;
 360
 361         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 362         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 363
 364         switch (api_ver) {
 365         default:
 366                 hdr_size = 28;
 367                 if (ucode_raw->size < hdr_size) {
 368                         IWL_ERR(drv, "File size too small!\n");
 369                         return -EINVAL;
 370                 }
 371                 build = le32_to_cpu(ucode->u.v2.build);
 372                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 373                              le32_to_cpu(ucode->u.v2.inst_size));
 374                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 375                              le32_to_cpu(ucode->u.v2.data_size));
 376                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 377                              le32_to_cpu(ucode->u.v2.init_size));
 378                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 379                              le32_to_cpu(ucode->u.v2.init_data_size));
 380                 src = ucode->u.v2.data;
 381                 break;
 382         case 0:
 383         case 1:
 384         case 2:
 385                 hdr_size = 24;
 386                 if (ucode_raw->size < hdr_size) {
 387                         IWL_ERR(drv, "File size too small!\n");
 388                         return -EINVAL;
 389                 }
 390                 build = 0;
 391                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 392                              le32_to_cpu(ucode->u.v1.inst_size));
 393                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 394                              le32_to_cpu(ucode->u.v1.data_size));
 395                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 396                              le32_to_cpu(ucode->u.v1.init_size));
 397                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 398                              le32_to_cpu(ucode->u.v1.init_data_size));
 399                 src = ucode->u.v1.data;
 400                 break;
 401         }
 402
 403         if (build)
 404                 sprintf(buildstr, " build %u%s", build,
 405                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 406                                 ? " (EXP)" : "");
 407         else
 408                 buildstr[0] = '\0';
 409
 410         snprintf(drv->fw.fw_version,
 411                  sizeof(drv->fw.fw_version),
 412                  "%u.%u.%u.%u%s",
 413                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 414                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 415                  IWL_UCODE_API(drv->fw.ucode_ver),
 416                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 417                  buildstr);
 418
 419         /* Verify size of file vs. image size info in file's header */
 420
 421         if (ucode_raw->size != hdr_size +
 422             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 423             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 424             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 425             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 426
 427                 IWL_ERR(drv,
 428                         "uCode file size %d does not match expected size\n",
 429                         (int)ucode_raw->size);
 430                 return -EINVAL;
 431         }
 432
 433
 434         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 435         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 436         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 437                        IWLAGN_RTC_INST_LOWER_BOUND);
 438         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 439         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 440         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 441                        IWLAGN_RTC_DATA_LOWER_BOUND);
 442         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 443         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 444         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 445                        IWLAGN_RTC_INST_LOWER_BOUND);
 446         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 447         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 448         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 449                        IWLAGN_RTC_DATA_LOWER_BOUND);
 450         return 0;
 451 }
 452
 453 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 454                                 const struct firmware *ucode_raw,
 455                                 struct iwl_firmware_pieces *pieces,
 456                                 struct iwl_ucode_capabilities *capa)
 457 {
 458         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 459         struct iwl_ucode_tlv *tlv;
 460         size_t len = ucode_raw->size;
 461         const u8 *data;
 462         u32 tlv_len;
 463         enum iwl_ucode_tlv_type tlv_type;
 464         const u8 *tlv_data;
 465         char buildstr[25];
 466         u32 build;
 467
 468         if (len < sizeof(*ucode)) {
 469                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 470                 return -EINVAL;
 471         }
 472
 473         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 474                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 475                         le32_to_cpu(ucode->magic));
 476                 return -EINVAL;
 477         }
 478
 479         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 480         build = le32_to_cpu(ucode->build);
 481
 482         if (build)
 483                 sprintf(buildstr, " build %u%s", build,
 484                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 485                                 ? " (EXP)" : "");
 486         else
 487                 buildstr[0] = '\0';
 488
 489         snprintf(drv->fw.fw_version,
 490                  sizeof(drv->fw.fw_version),
 491                  "%u.%u.%u.%u%s",
 492                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 493                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 494                  IWL_UCODE_API(drv->fw.ucode_ver),
 495                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 496                  buildstr);
 497
 498         data = ucode->data;
 499
 500         len -= sizeof(*ucode);
 501
 502         while (len >= sizeof(*tlv)) {
 503                 len -= sizeof(*tlv);
 504                 tlv = (void *)data;
 505
 506                 tlv_len = le32_to_cpu(tlv->length);
 507                 tlv_type = le32_to_cpu(tlv->type);
 508                 tlv_data = tlv->data;
 509
 510                 if (len < tlv_len) {
 511                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 512                                 len, tlv_len);
 513                         return -EINVAL;
 514                 }
 515                 len -= ALIGN(tlv_len, 4);
 516                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 517
 518                 switch (tlv_type) {
 519                 case IWL_UCODE_TLV_INST:
 520                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 521                                      IWL_UCODE_SECTION_INST, tlv_data);
 522                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 523                                      IWL_UCODE_SECTION_INST, tlv_len);
 524                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 525                                        IWL_UCODE_SECTION_INST,
 526                                        IWLAGN_RTC_INST_LOWER_BOUND);
 527                         break;
 528                 case IWL_UCODE_TLV_DATA:
 529                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 530                                      IWL_UCODE_SECTION_DATA, tlv_data);
 531                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 532                                      IWL_UCODE_SECTION_DATA, tlv_len);
 533                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 534                                        IWL_UCODE_SECTION_DATA,
 535                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 536                         break;
 537                 case IWL_UCODE_TLV_INIT:
 538                         set_sec_data(pieces, IWL_UCODE_INIT,
 539                                      IWL_UCODE_SECTION_INST, tlv_data);
 540                         set_sec_size(pieces, IWL_UCODE_INIT,
 541                                      IWL_UCODE_SECTION_INST, tlv_len);
 542                         set_sec_offset(pieces, IWL_UCODE_INIT,
 543                                        IWL_UCODE_SECTION_INST,
 544                                        IWLAGN_RTC_INST_LOWER_BOUND);
 545                         break;
 546                 case IWL_UCODE_TLV_INIT_DATA:
 547                         set_sec_data(pieces, IWL_UCODE_INIT,
 548                                      IWL_UCODE_SECTION_DATA, tlv_data);
 549                         set_sec_size(pieces, IWL_UCODE_INIT,
 550                                      IWL_UCODE_SECTION_DATA, tlv_len);
 551                         set_sec_offset(pieces, IWL_UCODE_INIT,
 552                                        IWL_UCODE_SECTION_DATA,
 553                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 554                         break;
 555                 case IWL_UCODE_TLV_BOOT:
 556                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 557                         break;
 558                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 559                         if (tlv_len != sizeof(u32))
 560                                 goto invalid_tlv_len;
 561                         capa->max_probe_length =
 562                                         le32_to_cpup((__le32 *)tlv_data);
 563                         break;
 564                 case IWL_UCODE_TLV_PAN:
 565                         if (tlv_len)
 566                                 goto invalid_tlv_len;
 567                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 568                         break;
 569                 case IWL_UCODE_TLV_FLAGS:
 570                         /* must be at least one u32 */
 571                         if (tlv_len < sizeof(u32))
 572                                 goto invalid_tlv_len;
 573                         /* and a proper number of u32s */
 574                         if (tlv_len % sizeof(u32))
 575                                 goto invalid_tlv_len;
 576                         /*
 577                          * This driver only reads the first u32 as
 578                          * right now no more features are defined,
 579                          * if that changes then either the driver
 580                          * will not work with the new firmware, or
 581                          * it'll not take advantage of new features.
 582                          */
 583                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 584                         break;
 585                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 586                         if (tlv_len != sizeof(u32))
 587                                 goto invalid_tlv_len;
 588                         pieces->init_evtlog_ptr =
 589                                         le32_to_cpup((__le32 *)tlv_data);
 590                         break;
 591                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 592                         if (tlv_len != sizeof(u32))
 593                                 goto invalid_tlv_len;
 594                         pieces->init_evtlog_size =
 595                                         le32_to_cpup((__le32 *)tlv_data);
 596                         break;
 597                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 598                         if (tlv_len != sizeof(u32))
 599                                 goto invalid_tlv_len;
 600                         pieces->init_errlog_ptr =
 601                                         le32_to_cpup((__le32 *)tlv_data);
 602                         break;
 603                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 604                         if (tlv_len != sizeof(u32))
 605                                 goto invalid_tlv_len;
 606                         pieces->inst_evtlog_ptr =
 607                                         le32_to_cpup((__le32 *)tlv_data);
 608                         break;
 609                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 610                         if (tlv_len != sizeof(u32))
 611                                 goto invalid_tlv_len;
 612                         pieces->inst_evtlog_size =
 613                                         le32_to_cpup((__le32 *)tlv_data);
 614                         break;
 615                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 616                         if (tlv_len != sizeof(u32))
 617                                 goto invalid_tlv_len;
 618                         pieces->inst_errlog_ptr =
 619                                         le32_to_cpup((__le32 *)tlv_data);
 620                         break;
 621                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 622                         if (tlv_len)
 623                                 goto invalid_tlv_len;
 624                         drv->fw.enhance_sensitivity_table = true;
 625                         break;
 626                 case IWL_UCODE_TLV_WOWLAN_INST:
 627                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 628                                      IWL_UCODE_SECTION_INST, tlv_data);
 629                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 630                                      IWL_UCODE_SECTION_INST, tlv_len);
 631                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 632                                        IWL_UCODE_SECTION_INST,
 633                                        IWLAGN_RTC_INST_LOWER_BOUND);
 634                         break;
 635                 case IWL_UCODE_TLV_WOWLAN_DATA:
 636                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 637                                      IWL_UCODE_SECTION_DATA, tlv_data);
 638                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 639                                      IWL_UCODE_SECTION_DATA, tlv_len);
 640                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 641                                        IWL_UCODE_SECTION_DATA,
 642                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 643                         break;
 644                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 645                         if (tlv_len != sizeof(u32))
 646                                 goto invalid_tlv_len;
 647                         capa->standard_phy_calibration_size =
 648                                         le32_to_cpup((__le32 *)tlv_data);
 649                         break;
 650                  case IWL_UCODE_TLV_SEC_RT:
 651                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 652                                             tlv_len);
 653                         drv->fw.mvm_fw = true;
 654                         break;
 655                 case IWL_UCODE_TLV_SEC_INIT:
 656                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 657                                             tlv_len);
 658                         drv->fw.mvm_fw = true;
 659                         break;
 660                 case IWL_UCODE_TLV_SEC_WOWLAN:
 661                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 662                                             tlv_len);
 663                         drv->fw.mvm_fw = true;
 664                         break;
 665                 case IWL_UCODE_TLV_DEF_CALIB:
 666                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 667                                 goto invalid_tlv_len;
 668                         if (iwl_set_default_calib(drv, tlv_data))
 669                                 goto tlv_error;
 670                         break;
 671                 case IWL_UCODE_TLV_PHY_SKU:
 672                         if (tlv_len != sizeof(u32))
 673                                 goto invalid_tlv_len;
 674                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 675                         break;
 676                 default:
 677                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
 678                         break;
 679                 }
 680         }
 681
 682         if (len) {
 683                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
 684                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
 685                 return -EINVAL;
 686         }
 687
 688         return 0;
 689
 690  invalid_tlv_len:
 691         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
 692  tlv_error:
 693         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
 694
 695         return -EINVAL;
 696 }
 697
 698 static int iwl_alloc_ucode(struct iwl_drv *drv,
 699                            struct iwl_firmware_pieces *pieces,
 700                            enum iwl_ucode_type type)
 701 {
 702         int i;
 703         for (i = 0;
 704              i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
 705              i++)
 706                 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
 707                                       get_sec(pieces, type, i)))
 708                         return -ENOMEM;
 709         return 0;
 710 }
 711
 712 static int validate_sec_sizes(struct iwl_drv *drv,
 713                               struct iwl_firmware_pieces *pieces,
 714                               const struct iwl_cfg *cfg)
 715 {
 716         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
 717                 get_sec_size(pieces, IWL_UCODE_REGULAR,
 718                              IWL_UCODE_SECTION_INST));
 719         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
 720                 get_sec_size(pieces, IWL_UCODE_REGULAR,
 721                              IWL_UCODE_SECTION_DATA));
 722         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
 723                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
 724         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
 725                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
 726
 727         /* Verify that uCode images will fit in card's SRAM. */
 728         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
 729                                                         cfg->max_inst_size) {
 730                 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
 731                         get_sec_size(pieces, IWL_UCODE_REGULAR,
 732                                                 IWL_UCODE_SECTION_INST));
 733                 return -1;
 734         }
 735
 736         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
 737                                                         cfg->max_data_size) {
 738                 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
 739                         get_sec_size(pieces, IWL_UCODE_REGULAR,
 740                                                 IWL_UCODE_SECTION_DATA));
 741                 return -1;
 742         }
 743
 744          if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
 745                                                         cfg->max_inst_size) {
 746                 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
 747                         get_sec_size(pieces, IWL_UCODE_INIT,
 748                                                 IWL_UCODE_SECTION_INST));
 749                 return -1;
 750         }
 751
 752         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
 753                                                         cfg->max_data_size) {
 754                 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
 755                         get_sec_size(pieces, IWL_UCODE_REGULAR,
 756                                                 IWL_UCODE_SECTION_DATA));
 757                 return -1;
 758         }
 759         return 0;
 760 }
 761
 762 /**
 763  * iwl_ucode_callback - callback when firmware was loaded
 764  *
 765  * If loaded successfully, copies the firmware into buffers
 766  * for the card to fetch (via DMA).
 767  */
 768 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
 769 {
 770         struct iwl_drv *drv = context;
 771         struct iwl_fw *fw = &drv->fw;
 772         struct iwl_ucode_header *ucode;
 773         struct iwlwifi_opmode_table *op;
 774         int err;
 775         struct iwl_firmware_pieces pieces;
 776         const unsigned int api_max = drv->cfg->ucode_api_max;
 777         unsigned int api_ok = drv->cfg->ucode_api_ok;
 778         const unsigned int api_min = drv->cfg->ucode_api_min;
 779         u32 api_ver;
 780         int i;
 781         bool load_module = false;
 782
 783         fw->ucode_capa.max_probe_length = 200;
 784         fw->ucode_capa.standard_phy_calibration_size =
 785                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
 786
 787         if (!api_ok)
 788                 api_ok = api_max;
 789
 790         memset(&pieces, 0, sizeof(pieces));
 791
 792         if (!ucode_raw) {
 793                 if (drv->fw_index <= api_ok)
 794                         IWL_ERR(drv,
 795                                 "request for firmware file '%s' failed.\n",
 796                                 drv->firmware_name);
 797                 goto try_again;
 798         }
 799
 800         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
 801                        drv->firmware_name, ucode_raw->size);
 802
 803         /* Make sure that we got at least the API version number */
 804         if (ucode_raw->size < 4) {
 805                 IWL_ERR(drv, "File size way too small!\n");
 806                 goto try_again;
 807         }
 808
 809         /* Data from ucode file:  header followed by uCode images */
 810         ucode = (struct iwl_ucode_header *)ucode_raw->data;
 811
 812         if (ucode->ver)
 813                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, &pieces);
 814         else
 815                 err = iwl_parse_tlv_firmware(drv, ucode_raw, &pieces,
 816                                            &fw->ucode_capa);
 817
 818         if (err)
 819                 goto try_again;
 820
 821         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 822
 823         /*
 824          * api_ver should match the api version forming part of the
 825          * firmware filename ... but we don't check for that and only rely
 826          * on the API version read from firmware header from here on forward
 827          */
 828         /* no api version check required for experimental uCode */
 829         if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
 830                 if (api_ver < api_min || api_ver > api_max) {
 831                         IWL_ERR(drv,
 832                                 "Driver unable to support your firmware API. "
 833                                 "Driver supports v%u, firmware is v%u.\n",
 834                                 api_max, api_ver);
 835                         goto try_again;
 836                 }
 837
 838                 if (api_ver < api_ok) {
 839                         if (api_ok != api_max)
 840                                 IWL_ERR(drv, "Firmware has old API version, "
 841                                         "expected v%u through v%u, got v%u.\n",
 842                                         api_ok, api_max, api_ver);
 843                         else
 844                                 IWL_ERR(drv, "Firmware has old API version, "
 845                                         "expected v%u, got v%u.\n",
 846                                         api_max, api_ver);
 847                         IWL_ERR(drv, "New firmware can be obtained from "
 848                                       "http://www.intellinuxwireless.org/.\n");
 849                 }
 850         }
 851
 852         IWL_INFO(drv, "loaded firmware version %s", drv->fw.fw_version);
 853
 854         /*
 855          * In mvm uCode there is no difference between data and instructions
 856          * sections.
 857          */
 858         if (!fw->mvm_fw && validate_sec_sizes(drv, &pieces, drv->cfg))
 859                 goto try_again;
 860
 861         /* Allocate ucode buffers for card's bus-master loading ... */
 862
 863         /* Runtime instructions and 2 copies of data:
 864          * 1) unmodified from disk
 865          * 2) backup cache for save/restore during power-downs */
 866         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 867                 if (iwl_alloc_ucode(drv, &pieces, i))
 868                         goto out_free_fw;
 869
 870         /* Now that we can no longer fail, copy information */
 871
 872         /*
 873          * The (size - 16) / 12 formula is based on the information recorded
 874          * for each event, which is of mode 1 (including timestamp) for all
 875          * new microcodes that include this information.
 876          */
 877         fw->init_evtlog_ptr = pieces.init_evtlog_ptr;
 878         if (pieces.init_evtlog_size)
 879                 fw->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
 880         else
 881                 fw->init_evtlog_size =
 882                         drv->cfg->base_params->max_event_log_size;
 883         fw->init_errlog_ptr = pieces.init_errlog_ptr;
 884         fw->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
 885         if (pieces.inst_evtlog_size)
 886                 fw->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
 887         else
 888                 fw->inst_evtlog_size =
 889                         drv->cfg->base_params->max_event_log_size;
 890         fw->inst_errlog_ptr = pieces.inst_errlog_ptr;
 891
 892         /*
 893          * figure out the offset of chain noise reset and gain commands
 894          * base on the size of standard phy calibration commands table size
 895          */
 896         if (fw->ucode_capa.standard_phy_calibration_size >
 897             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
 898                 fw->ucode_capa.standard_phy_calibration_size =
 899                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
 900
 901         /* We have our copies now, allow OS release its copies */
 902         release_firmware(ucode_raw);
 903
 904         mutex_lock(&iwlwifi_opmode_table_mtx);
 905         op = &iwlwifi_opmode_table[DVM_OP_MODE];
 906
 907         /* add this device to the list of devices using this op_mode */
 908         list_add_tail(&drv->list, &op->drv);
 909
 910         if (op->ops) {
 911                 const struct iwl_op_mode_ops *ops = op->ops;
 912                 drv->op_mode = ops->start(drv->trans, drv->cfg, &drv->fw);
 913
 914                 if (!drv->op_mode) {
 915                         mutex_unlock(&iwlwifi_opmode_table_mtx);
 916                         goto out_unbind;
 917                 }
 918         } else {
 919                 load_module = true;
 920         }
 921         mutex_unlock(&iwlwifi_opmode_table_mtx);
 922
 923         /*
 924          * Complete the firmware request last so that
 925          * a driver unbind (stop) doesn't run while we
 926          * are doing the start() above.
 927          */
 928         complete(&drv->request_firmware_complete);
 929
 930         /*
 931          * Load the module last so we don't block anything
 932          * else from proceeding if the module fails to load
 933          * or hangs loading.
 934          */
 935         if (load_module)
 936                 request_module("%s", op->name);
 937         return;
 938
 939  try_again:
 940         /* try next, if any */
 941         release_firmware(ucode_raw);
 942         if (iwl_request_firmware(drv, false))
 943                 goto out_unbind;
 944         return;
 945
 946  out_free_fw:
 947         IWL_ERR(drv, "failed to allocate pci memory\n");
 948         iwl_dealloc_ucode(drv);
 949         release_firmware(ucode_raw);
 950  out_unbind:
 951         complete(&drv->request_firmware_complete);
 952         device_release_driver(drv->trans->dev);
 953 }
 954
 955 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
 956                               const struct iwl_cfg *cfg)
 957 {
 958         struct iwl_drv *drv;
 959         int ret;
 960
 961         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
 962         if (!drv)
 963                 return NULL;
 964
 965         drv->trans = trans;
 966         drv->dev = trans->dev;
 967         drv->cfg = cfg;
 968
 969         init_completion(&drv->request_firmware_complete);
 970         INIT_LIST_HEAD(&drv->list);
 971
 972         ret = iwl_request_firmware(drv, true);
 973
 974         if (ret) {
 975                 IWL_ERR(trans, "Couldn't request the fw\n");
 976                 kfree(drv);
 977                 drv = NULL;
 978         }
 979
 980         return drv;
 981 }
 982
 983 void iwl_drv_stop(struct iwl_drv *drv)
 984 {
 985         wait_for_completion(&drv->request_firmware_complete);
 986
 987         /* op_mode can be NULL if its start failed */
 988         if (drv->op_mode)
 989                 iwl_op_mode_stop(drv->op_mode);
 990
 991         iwl_dealloc_ucode(drv);
 992
 993         mutex_lock(&iwlwifi_opmode_table_mtx);
 994         /*
 995          * List is empty (this item wasn't added)
 996          * when firmware loading failed -- in that
 997          * case we can't remove it from any list.
 998          */
 999         if (!list_empty(&drv->list))
1000                 list_del(&drv->list);
1001         mutex_unlock(&iwlwifi_opmode_table_mtx);
1002
1003         kfree(drv);
1004 }
1005
1006
1007 /* shared module parameters */
1008 struct iwl_mod_params iwlwifi_mod_params = {
1009         .amsdu_size_8K = 1,
1010         .restart_fw = 1,
1011         .plcp_check = true,
1012         .bt_coex_active = true,
1013         .power_level = IWL_POWER_INDEX_1,
1014         .bt_ch_announce = true,
1015         .auto_agg = true,
1016         .wd_disable = true,
1017         /* the rest are 0 by default */
1018 };
1019 EXPORT_SYMBOL_GPL(iwlwifi_mod_params);
1020
1021 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1022 {
1023         int i;
1024         struct iwl_drv *drv;
1025
1026         mutex_lock(&iwlwifi_opmode_table_mtx);
1027         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1028                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1029                         continue;
1030                 iwlwifi_opmode_table[i].ops = ops;
1031                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1032                         drv->op_mode = ops->start(drv->trans, drv->cfg,
1033                                                   &drv->fw);
1034                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1035                 return 0;
1036         }
1037         mutex_unlock(&iwlwifi_opmode_table_mtx);
1038         return -EIO;
1039 }
1040 EXPORT_SYMBOL_GPL(iwl_opmode_register);
1041
1042 void iwl_opmode_deregister(const char *name)
1043 {
1044         int i;
1045         struct iwl_drv *drv;
1046
1047         mutex_lock(&iwlwifi_opmode_table_mtx);
1048         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1049                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1050                         continue;
1051                 iwlwifi_opmode_table[i].ops = NULL;
1052
1053                 /* call the stop routine for all devices */
1054                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list) {
1055                         if (drv->op_mode) {
1056                                 iwl_op_mode_stop(drv->op_mode);
1057                                 drv->op_mode = NULL;
1058                         }
1059                 }
1060                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1061                 return;
1062         }
1063         mutex_unlock(&iwlwifi_opmode_table_mtx);
1064 }
1065 EXPORT_SYMBOL_GPL(iwl_opmode_deregister);
1066
1067 static int __init iwl_drv_init(void)
1068 {
1069         int i;
1070
1071         mutex_init(&iwlwifi_opmode_table_mtx);
1072
1073         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1074                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1075
1076         pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
1077         pr_info(DRV_COPYRIGHT "\n");
1078
1079         return iwl_pci_register_driver();
1080 }
1081 module_init(iwl_drv_init);
1082
1083 static void __exit iwl_drv_exit(void)
1084 {
1085         iwl_pci_unregister_driver();
1086 }
1087 module_exit(iwl_drv_exit);
1088
1089 #ifdef CONFIG_IWLWIFI_DEBUG
1090 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1091                    S_IRUGO | S_IWUSR);
1092 MODULE_PARM_DESC(debug, "debug output mask");
1093 #endif
1094
1095 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1096 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1097 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1098 MODULE_PARM_DESC(11n_disable,
1099         "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
1100 module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K,
1101                    int, S_IRUGO);
1102 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
1103 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, int, S_IRUGO);
1104 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
1105
1106 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1107                    int, S_IRUGO);
1108 MODULE_PARM_DESC(antenna_coupling,
1109                  "specify antenna coupling in dB (defualt: 0 dB)");
1110
1111 module_param_named(bt_ch_inhibition, iwlwifi_mod_params.bt_ch_announce,
1112                    bool, S_IRUGO);
1113 MODULE_PARM_DESC(bt_ch_inhibition,
1114                  "Enable BT channel inhibition (default: enable)");
1115
1116 module_param_named(plcp_check, iwlwifi_mod_params.plcp_check, bool, S_IRUGO);
1117 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
1118
1119 module_param_named(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO);
1120 MODULE_PARM_DESC(wd_disable,
1121                 "Disable stuck queue watchdog timer 0=system default, "
1122                 "1=disable, 2=enable (default: 0)");
1123
1124 /*
1125  * set bt_coex_active to true, uCode will do kill/defer
1126  * every time the priority line is asserted (BT is sending signals on the
1127  * priority line in the PCIx).
1128  * set bt_coex_active to false, uCode will ignore the BT activity and
1129  * perform the normal operation
1130  *
1131  * User might experience transmit issue on some platform due to WiFi/BT
1132  * co-exist problem. The possible behaviors are:
1133  *   Able to scan and finding all the available AP
1134  *   Not able to associate with any AP
1135  * On those platforms, WiFi communication can be restored by set
1136  * "bt_coex_active" module parameter to "false"
1137  *
1138  * default: bt_coex_active = true (BT_COEX_ENABLE)
1139  */
1140 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1141                 bool, S_IRUGO);
1142 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1143
1144 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1145 MODULE_PARM_DESC(led_mode, "0=system default, "
1146                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1147
1148 module_param_named(power_save, iwlwifi_mod_params.power_save,
1149                 bool, S_IRUGO);
1150 MODULE_PARM_DESC(power_save,
1151                  "enable WiFi power management (default: disable)");
1152
1153 module_param_named(power_level, iwlwifi_mod_params.power_level,
1154                 int, S_IRUGO);
1155 MODULE_PARM_DESC(power_level,
1156                  "default power save level (range from 1 - 5, default: 1)");
1157
1158 module_param_named(auto_agg, iwlwifi_mod_params.auto_agg,
1159                 bool, S_IRUGO);
1160 MODULE_PARM_DESC(auto_agg,
1161                  "enable agg w/o check traffic load (default: enable)");
1162
1163 module_param_named(5ghz_disable, iwlwifi_mod_params.disable_5ghz,
1164                 bool, S_IRUGO);
1165 MODULE_PARM_DESC(5ghz_disable, "disable 5GHz band (default: 0 [enabled])");