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  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  23  * USA
  24  *
  25  * The full GNU General Public License is included in this distribution
  26  * in the file called COPYING.
  27  *
  28  * Contact Information:
  29  *  Intel Linux Wireless <linuxwifi@intel.com>
  30  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
  32  * BSD LICENSE
  33  *
  34  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  36  * All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  *
  42  *  * Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  *  * Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
  47  *    distribution.
  48  *  * Neither the name Intel Corporation nor the names of its
  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  58  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  59  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65 #include <linux/completion.h>
  66 #include <linux/dma-mapping.h>
  67 #include <linux/firmware.h>
  68 #include <linux/module.h>
  69 #include <linux/vmalloc.h>
  70
  71 #include "iwl-drv.h"
  72 #include "iwl-csr.h"
  73 #include "iwl-debug.h"
  74 #include "iwl-trans.h"
  75 #include "iwl-op-mode.h"
  76 #include "iwl-agn-hw.h"
  77 #include "iwl-fw.h"
  78 #include "iwl-config.h"
  79 #include "iwl-modparams.h"
  80
  81 /******************************************************************************
  82  *
  83  * module boiler plate
  84  *
  85  ******************************************************************************/
  86
  87 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  88 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  89 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  90 MODULE_LICENSE("GPL");
  91
  92 #ifdef CONFIG_IWLWIFI_DEBUGFS
  93 static struct dentry *iwl_dbgfs_root;
  94 #endif
  95
  96 /**
  97  * struct iwl_drv - drv common data
  98  * @list: list of drv structures using this opmode
  99  * @fw: the iwl_fw structure
 100  * @op_mode: the running op_mode
 101  * @trans: transport layer
 102  * @dev: for debug prints only
 103  * @cfg: configuration struct
 104  * @fw_index: firmware revision to try loading
 105  * @firmware_name: composite filename of ucode file to load
 106  * @request_firmware_complete: the firmware has been obtained from user space
 107  */
 108 struct iwl_drv {
 109         struct list_head list;
 110         struct iwl_fw fw;
 111
 112         struct iwl_op_mode *op_mode;
 113         struct iwl_trans *trans;
 114         struct device *dev;
 115         const struct iwl_cfg *cfg;
 116
 117         int fw_index;                   /* firmware we're trying to load */
 118         char firmware_name[32];         /* name of firmware file to load */
 119
 120         struct completion request_firmware_complete;
 121
 122 #ifdef CONFIG_IWLWIFI_DEBUGFS
 123         struct dentry *dbgfs_drv;
 124         struct dentry *dbgfs_trans;
 125         struct dentry *dbgfs_op_mode;
 126 #endif
 127 };
 128
 129 enum {
 130         DVM_OP_MODE =   0,
 131         MVM_OP_MODE =   1,
 132 };
 133
 134 /* Protects the table contents, i.e. the ops pointer & drv list */
 135 static struct mutex iwlwifi_opmode_table_mtx;
 136 static struct iwlwifi_opmode_table {
 137         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 138         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 139         struct list_head drv;           /* list of devices using this op_mode */
 140 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 141         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 142         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 143 };
 144
 145 #define IWL_DEFAULT_SCAN_CHANNELS 40
 146
 147 /*
 148  * struct fw_sec: Just for the image parsing process.
 149  * For the fw storage we are using struct fw_desc.
 150  */
 151 struct fw_sec {
 152         const void *data;               /* the sec data */
 153         size_t size;                    /* section size */
 154         u32 offset;                     /* offset of writing in the device */
 155 };
 156
 157 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 158 {
 159         vfree(desc->data);
 160         desc->data = NULL;
 161         desc->len = 0;
 162 }
 163
 164 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 165 {
 166         int i;
 167         for (i = 0; i < 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
 175         kfree(drv->fw.dbg_dest_tlv);
 176         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
 177                 kfree(drv->fw.dbg_conf_tlv[i]);
 178         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
 179                 kfree(drv->fw.dbg_trigger_tlv[i]);
 180
 181         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 182                 iwl_free_fw_img(drv, drv->fw.img + i);
 183 }
 184
 185 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 186                              struct fw_sec *sec)
 187 {
 188         void *data;
 189
 190         desc->data = NULL;
 191
 192         if (!sec || !sec->size)
 193                 return -EINVAL;
 194
 195         data = vmalloc(sec->size);
 196         if (!data)
 197                 return -ENOMEM;
 198
 199         desc->len = sec->size;
 200         desc->offset = sec->offset;
 201         memcpy(data, sec->data, desc->len);
 202         desc->data = data;
 203
 204         return 0;
 205 }
 206
 207 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 208                                 void *context);
 209
 210 #define UCODE_EXPERIMENTAL_INDEX        100
 211 #define UCODE_EXPERIMENTAL_TAG          "exp"
 212
 213 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 214 {
 215         const char *name_pre = drv->cfg->fw_name_pre;
 216         char tag[8];
 217
 218         if (first) {
 219 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
 220                 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
 221                 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
 222         } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
 223 #endif
 224                 drv->fw_index = drv->cfg->ucode_api_max;
 225                 sprintf(tag, "%d", drv->fw_index);
 226         } else {
 227                 drv->fw_index--;
 228                 sprintf(tag, "%d", drv->fw_index);
 229         }
 230
 231         if (drv->fw_index < drv->cfg->ucode_api_min) {
 232                 IWL_ERR(drv, "no suitable firmware found!\n");
 233                 return -ENOENT;
 234         }
 235
 236         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 237                  name_pre, tag);
 238
 239         /*
 240          * Starting 8000B - FW name format has changed. This overwrites the
 241          * previous name and uses the new format.
 242          */
 243         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
 244                 char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev);
 245
 246                 snprintf(drv->firmware_name, sizeof(drv->firmware_name),
 247                          "%s%c-%s.ucode", name_pre, rev_step, tag);
 248         }
 249
 250         IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
 251                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 252                                 ? "EXPERIMENTAL " : "",
 253                        drv->firmware_name);
 254
 255         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 256                                        drv->trans->dev,
 257                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 258 }
 259
 260 struct fw_img_parsing {
 261         struct fw_sec sec[IWL_UCODE_SECTION_MAX];
 262         int sec_counter;
 263 };
 264
 265 /*
 266  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 267  */
 268 struct fw_sec_parsing {
 269         __le32 offset;
 270         const u8 data[];
 271 } __packed;
 272
 273 /**
 274  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 275  *
 276  * @ucode_type: the uCode to which the following default calib relates.
 277  * @calib: default calibrations.
 278  */
 279 struct iwl_tlv_calib_data {
 280         __le32 ucode_type;
 281         struct iwl_tlv_calib_ctrl calib;
 282 } __packed;
 283
 284 struct iwl_firmware_pieces {
 285         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 286
 287         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 288         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 289
 290         /* FW debug data parsed for driver usage */
 291         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 292         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 293         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 294         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 295         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 296 };
 297
 298 /*
 299  * These functions are just to extract uCode section data from the pieces
 300  * structure.
 301  */
 302 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 303                               enum iwl_ucode_type type,
 304                               int  sec)
 305 {
 306         return &pieces->img[type].sec[sec];
 307 }
 308
 309 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 310                          enum iwl_ucode_type type,
 311                          int sec,
 312                          const void *data)
 313 {
 314         pieces->img[type].sec[sec].data = data;
 315 }
 316
 317 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 318                          enum iwl_ucode_type type,
 319                          int sec,
 320                          size_t size)
 321 {
 322         pieces->img[type].sec[sec].size = size;
 323 }
 324
 325 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 326                            enum iwl_ucode_type type,
 327                            int sec)
 328 {
 329         return pieces->img[type].sec[sec].size;
 330 }
 331
 332 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 333                            enum iwl_ucode_type type,
 334                            int sec,
 335                            u32 offset)
 336 {
 337         pieces->img[type].sec[sec].offset = offset;
 338 }
 339
 340 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 341 {
 342         int i, j;
 343         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 344         struct iwl_fw_cipher_scheme *fwcs;
 345         struct ieee80211_cipher_scheme *cs;
 346         u32 cipher;
 347
 348         if (len < sizeof(*l) ||
 349             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 350                 return -EINVAL;
 351
 352         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 353                 fwcs = &l->cs[j];
 354                 cipher = le32_to_cpu(fwcs->cipher);
 355
 356                 /* we skip schemes with zero cipher suite selector */
 357                 if (!cipher)
 358                         continue;
 359
 360                 cs = &fw->cs[j++];
 361                 cs->cipher = cipher;
 362                 cs->iftype = BIT(NL80211_IFTYPE_STATION);
 363                 cs->hdr_len = fwcs->hdr_len;
 364                 cs->pn_len = fwcs->pn_len;
 365                 cs->pn_off = fwcs->pn_off;
 366                 cs->key_idx_off = fwcs->key_idx_off;
 367                 cs->key_idx_mask = fwcs->key_idx_mask;
 368                 cs->key_idx_shift = fwcs->key_idx_shift;
 369                 cs->mic_len = fwcs->mic_len;
 370         }
 371
 372         return 0;
 373 }
 374
 375 static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 376                                 const u32 len)
 377 {
 378         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 379         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 380
 381         if (len < sizeof(*fw_capa))
 382                 return -EINVAL;
 383
 384         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 385         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 386         capa->max_ap_cache_per_scan =
 387                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 388         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 389         capa->max_scan_reporting_threshold =
 390                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 391         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 392         capa->max_significant_change_aps =
 393                 le32_to_cpu(fw_capa->max_significant_change_aps);
 394         capa->max_bssid_history_entries =
 395                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 396         return 0;
 397 }
 398
 399 /*
 400  * Gets uCode section from tlv.
 401  */
 402 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 403                                const void *data, enum iwl_ucode_type type,
 404                                int size)
 405 {
 406         struct fw_img_parsing *img;
 407         struct fw_sec *sec;
 408         struct fw_sec_parsing *sec_parse;
 409
 410         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 411                 return -1;
 412
 413         sec_parse = (struct fw_sec_parsing *)data;
 414
 415         img = &pieces->img[type];
 416         sec = &img->sec[img->sec_counter];
 417
 418         sec->offset = le32_to_cpu(sec_parse->offset);
 419         sec->data = sec_parse->data;
 420         sec->size = size - sizeof(sec_parse->offset);
 421
 422         ++img->sec_counter;
 423
 424         return 0;
 425 }
 426
 427 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 428 {
 429         struct iwl_tlv_calib_data *def_calib =
 430                                         (struct iwl_tlv_calib_data *)data;
 431         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 432         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 433                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 434                         ucode_type);
 435                 return -EINVAL;
 436         }
 437         drv->fw.default_calib[ucode_type].flow_trigger =
 438                 def_calib->calib.flow_trigger;
 439         drv->fw.default_calib[ucode_type].event_trigger =
 440                 def_calib->calib.event_trigger;
 441
 442         return 0;
 443 }
 444
 445 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 446                                    struct iwl_ucode_capabilities *capa)
 447 {
 448         const struct iwl_ucode_api *ucode_api = (void *)data;
 449         u32 api_index = le32_to_cpu(ucode_api->api_index);
 450         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 451         int i;
 452
 453         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 454                 IWL_ERR(drv,
 455                         "api flags index %d larger than supported by driver\n",
 456                         api_index);
 457                 /* don't return an error so we can load FW that has more bits */
 458                 return 0;
 459         }
 460
 461         for (i = 0; i < 32; i++) {
 462                 if (api_flags & BIT(i))
 463                         __set_bit(i + 32 * api_index, capa->_api);
 464         }
 465
 466         return 0;
 467 }
 468
 469 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 470                                       struct iwl_ucode_capabilities *capa)
 471 {
 472         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 473         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 474         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 475         int i;
 476
 477         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 478                 IWL_ERR(drv,
 479                         "capa flags index %d larger than supported by driver\n",
 480                         api_index);
 481                 /* don't return an error so we can load FW that has more bits */
 482                 return 0;
 483         }
 484
 485         for (i = 0; i < 32; i++) {
 486                 if (api_flags & BIT(i))
 487                         __set_bit(i + 32 * api_index, capa->_capa);
 488         }
 489
 490         return 0;
 491 }
 492
 493 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 494                                     const struct firmware *ucode_raw,
 495                                     struct iwl_firmware_pieces *pieces)
 496 {
 497         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 498         u32 api_ver, hdr_size, build;
 499         char buildstr[25];
 500         const u8 *src;
 501
 502         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 503         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 504
 505         switch (api_ver) {
 506         default:
 507                 hdr_size = 28;
 508                 if (ucode_raw->size < hdr_size) {
 509                         IWL_ERR(drv, "File size too small!\n");
 510                         return -EINVAL;
 511                 }
 512                 build = le32_to_cpu(ucode->u.v2.build);
 513                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 514                              le32_to_cpu(ucode->u.v2.inst_size));
 515                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 516                              le32_to_cpu(ucode->u.v2.data_size));
 517                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 518                              le32_to_cpu(ucode->u.v2.init_size));
 519                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 520                              le32_to_cpu(ucode->u.v2.init_data_size));
 521                 src = ucode->u.v2.data;
 522                 break;
 523         case 0:
 524         case 1:
 525         case 2:
 526                 hdr_size = 24;
 527                 if (ucode_raw->size < hdr_size) {
 528                         IWL_ERR(drv, "File size too small!\n");
 529                         return -EINVAL;
 530                 }
 531                 build = 0;
 532                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 533                              le32_to_cpu(ucode->u.v1.inst_size));
 534                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 535                              le32_to_cpu(ucode->u.v1.data_size));
 536                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 537                              le32_to_cpu(ucode->u.v1.init_size));
 538                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 539                              le32_to_cpu(ucode->u.v1.init_data_size));
 540                 src = ucode->u.v1.data;
 541                 break;
 542         }
 543
 544         if (build)
 545                 sprintf(buildstr, " build %u%s", build,
 546                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 547                                 ? " (EXP)" : "");
 548         else
 549                 buildstr[0] = '\0';
 550
 551         snprintf(drv->fw.fw_version,
 552                  sizeof(drv->fw.fw_version),
 553                  "%u.%u.%u.%u%s",
 554                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 555                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 556                  IWL_UCODE_API(drv->fw.ucode_ver),
 557                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 558                  buildstr);
 559
 560         /* Verify size of file vs. image size info in file's header */
 561
 562         if (ucode_raw->size != hdr_size +
 563             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 564             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 565             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 566             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 567
 568                 IWL_ERR(drv,
 569                         "uCode file size %d does not match expected size\n",
 570                         (int)ucode_raw->size);
 571                 return -EINVAL;
 572         }
 573
 574
 575         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 576         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 577         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 578                        IWLAGN_RTC_INST_LOWER_BOUND);
 579         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 580         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 581         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 582                        IWLAGN_RTC_DATA_LOWER_BOUND);
 583         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 584         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 585         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 586                        IWLAGN_RTC_INST_LOWER_BOUND);
 587         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 588         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 589         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 590                        IWLAGN_RTC_DATA_LOWER_BOUND);
 591         return 0;
 592 }
 593
 594 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 595                                 const struct firmware *ucode_raw,
 596                                 struct iwl_firmware_pieces *pieces,
 597                                 struct iwl_ucode_capabilities *capa,
 598                                 bool *usniffer_images)
 599 {
 600         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 601         struct iwl_ucode_tlv *tlv;
 602         size_t len = ucode_raw->size;
 603         const u8 *data;
 604         u32 tlv_len;
 605         u32 usniffer_img;
 606         enum iwl_ucode_tlv_type tlv_type;
 607         const u8 *tlv_data;
 608         char buildstr[25];
 609         u32 build, paging_mem_size;
 610         int num_of_cpus;
 611         bool usniffer_req = false;
 612         bool gscan_capa = 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%s", build,
 632                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 633                                 ? " (EXP)" : "");
 634         else
 635                 buildstr[0] = '\0';
 636
 637         snprintf(drv->fw.fw_version,
 638                  sizeof(drv->fw.fw_version),
 639                  "%u.%u.%u.%u%s",
 640                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 641                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 642                  IWL_UCODE_API(drv->fw.ucode_ver),
 643                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 644                  buildstr);
 645
 646         data = ucode->data;
 647
 648         len -= sizeof(*ucode);
 649
 650         while (len >= sizeof(*tlv)) {
 651                 len -= sizeof(*tlv);
 652                 tlv = (void *)data;
 653
 654                 tlv_len = le32_to_cpu(tlv->length);
 655                 tlv_type = le32_to_cpu(tlv->type);
 656                 tlv_data = tlv->data;
 657
 658                 if (len < tlv_len) {
 659                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 660                                 len, tlv_len);
 661                         return -EINVAL;
 662                 }
 663                 len -= ALIGN(tlv_len, 4);
 664                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 665
 666                 switch (tlv_type) {
 667                 case IWL_UCODE_TLV_INST:
 668                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 669                                      IWL_UCODE_SECTION_INST, tlv_data);
 670                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 671                                      IWL_UCODE_SECTION_INST, tlv_len);
 672                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 673                                        IWL_UCODE_SECTION_INST,
 674                                        IWLAGN_RTC_INST_LOWER_BOUND);
 675                         break;
 676                 case IWL_UCODE_TLV_DATA:
 677                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 678                                      IWL_UCODE_SECTION_DATA, tlv_data);
 679                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 680                                      IWL_UCODE_SECTION_DATA, tlv_len);
 681                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 682                                        IWL_UCODE_SECTION_DATA,
 683                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 684                         break;
 685                 case IWL_UCODE_TLV_INIT:
 686                         set_sec_data(pieces, IWL_UCODE_INIT,
 687                                      IWL_UCODE_SECTION_INST, tlv_data);
 688                         set_sec_size(pieces, IWL_UCODE_INIT,
 689                                      IWL_UCODE_SECTION_INST, tlv_len);
 690                         set_sec_offset(pieces, IWL_UCODE_INIT,
 691                                        IWL_UCODE_SECTION_INST,
 692                                        IWLAGN_RTC_INST_LOWER_BOUND);
 693                         break;
 694                 case IWL_UCODE_TLV_INIT_DATA:
 695                         set_sec_data(pieces, IWL_UCODE_INIT,
 696                                      IWL_UCODE_SECTION_DATA, tlv_data);
 697                         set_sec_size(pieces, IWL_UCODE_INIT,
 698                                      IWL_UCODE_SECTION_DATA, tlv_len);
 699                         set_sec_offset(pieces, IWL_UCODE_INIT,
 700                                        IWL_UCODE_SECTION_DATA,
 701                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 702                         break;
 703                 case IWL_UCODE_TLV_BOOT:
 704                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 705                         break;
 706                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 707                         if (tlv_len != sizeof(u32))
 708                                 goto invalid_tlv_len;
 709                         capa->max_probe_length =
 710                                         le32_to_cpup((__le32 *)tlv_data);
 711                         break;
 712                 case IWL_UCODE_TLV_PAN:
 713                         if (tlv_len)
 714                                 goto invalid_tlv_len;
 715                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 716                         break;
 717                 case IWL_UCODE_TLV_FLAGS:
 718                         /* must be at least one u32 */
 719                         if (tlv_len < sizeof(u32))
 720                                 goto invalid_tlv_len;
 721                         /* and a proper number of u32s */
 722                         if (tlv_len % sizeof(u32))
 723                                 goto invalid_tlv_len;
 724                         /*
 725                          * This driver only reads the first u32 as
 726                          * right now no more features are defined,
 727                          * if that changes then either the driver
 728                          * will not work with the new firmware, or
 729                          * it'll not take advantage of new features.
 730                          */
 731                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 732                         break;
 733                 case IWL_UCODE_TLV_API_CHANGES_SET:
 734                         if (tlv_len != sizeof(struct iwl_ucode_api))
 735                                 goto invalid_tlv_len;
 736                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 737                                 goto tlv_error;
 738                         break;
 739                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 740                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 741                                 goto invalid_tlv_len;
 742                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 743                                 goto tlv_error;
 744                         break;
 745                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 746                         if (tlv_len != sizeof(u32))
 747                                 goto invalid_tlv_len;
 748                         pieces->init_evtlog_ptr =
 749                                         le32_to_cpup((__le32 *)tlv_data);
 750                         break;
 751                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 752                         if (tlv_len != sizeof(u32))
 753                                 goto invalid_tlv_len;
 754                         pieces->init_evtlog_size =
 755                                         le32_to_cpup((__le32 *)tlv_data);
 756                         break;
 757                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 758                         if (tlv_len != sizeof(u32))
 759                                 goto invalid_tlv_len;
 760                         pieces->init_errlog_ptr =
 761                                         le32_to_cpup((__le32 *)tlv_data);
 762                         break;
 763                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 764                         if (tlv_len != sizeof(u32))
 765                                 goto invalid_tlv_len;
 766                         pieces->inst_evtlog_ptr =
 767                                         le32_to_cpup((__le32 *)tlv_data);
 768                         break;
 769                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 770                         if (tlv_len != sizeof(u32))
 771                                 goto invalid_tlv_len;
 772                         pieces->inst_evtlog_size =
 773                                         le32_to_cpup((__le32 *)tlv_data);
 774                         break;
 775                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 776                         if (tlv_len != sizeof(u32))
 777                                 goto invalid_tlv_len;
 778                         pieces->inst_errlog_ptr =
 779                                         le32_to_cpup((__le32 *)tlv_data);
 780                         break;
 781                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 782                         if (tlv_len)
 783                                 goto invalid_tlv_len;
 784                         drv->fw.enhance_sensitivity_table = true;
 785                         break;
 786                 case IWL_UCODE_TLV_WOWLAN_INST:
 787                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 788                                      IWL_UCODE_SECTION_INST, tlv_data);
 789                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 790                                      IWL_UCODE_SECTION_INST, tlv_len);
 791                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 792                                        IWL_UCODE_SECTION_INST,
 793                                        IWLAGN_RTC_INST_LOWER_BOUND);
 794                         break;
 795                 case IWL_UCODE_TLV_WOWLAN_DATA:
 796                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 797                                      IWL_UCODE_SECTION_DATA, tlv_data);
 798                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 799                                      IWL_UCODE_SECTION_DATA, tlv_len);
 800                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 801                                        IWL_UCODE_SECTION_DATA,
 802                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 803                         break;
 804                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 805                         if (tlv_len != sizeof(u32))
 806                                 goto invalid_tlv_len;
 807                         capa->standard_phy_calibration_size =
 808                                         le32_to_cpup((__le32 *)tlv_data);
 809                         break;
 810                  case IWL_UCODE_TLV_SEC_RT:
 811                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 812                                             tlv_len);
 813                         drv->fw.mvm_fw = true;
 814                         break;
 815                 case IWL_UCODE_TLV_SEC_INIT:
 816                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 817                                             tlv_len);
 818                         drv->fw.mvm_fw = true;
 819                         break;
 820                 case IWL_UCODE_TLV_SEC_WOWLAN:
 821                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 822                                             tlv_len);
 823                         drv->fw.mvm_fw = true;
 824                         break;
 825                 case IWL_UCODE_TLV_DEF_CALIB:
 826                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 827                                 goto invalid_tlv_len;
 828                         if (iwl_set_default_calib(drv, tlv_data))
 829                                 goto tlv_error;
 830                         break;
 831                 case IWL_UCODE_TLV_PHY_SKU:
 832                         if (tlv_len != sizeof(u32))
 833                                 goto invalid_tlv_len;
 834                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 835                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 836                                                 FW_PHY_CFG_TX_CHAIN) >>
 837                                                 FW_PHY_CFG_TX_CHAIN_POS;
 838                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 839                                                 FW_PHY_CFG_RX_CHAIN) >>
 840                                                 FW_PHY_CFG_RX_CHAIN_POS;
 841                         break;
 842                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 843                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 844                                             tlv_len);
 845                         drv->fw.mvm_fw = true;
 846                         break;
 847                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 848                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 849                                             tlv_len);
 850                         drv->fw.mvm_fw = true;
 851                         break;
 852                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 853                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 854                                             tlv_len);
 855                         drv->fw.mvm_fw = true;
 856                         break;
 857                 case IWL_UCODE_TLV_NUM_OF_CPU:
 858                         if (tlv_len != sizeof(u32))
 859                                 goto invalid_tlv_len;
 860                         num_of_cpus =
 861                                 le32_to_cpup((__le32 *)tlv_data);
 862
 863                         if (num_of_cpus == 2) {
 864                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 865                                         true;
 866                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 867                                         true;
 868                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 869                                         true;
 870                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 871                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 872                                 return -EINVAL;
 873                         }
 874                         break;
 875                 case IWL_UCODE_TLV_CSCHEME:
 876                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 877                                 goto invalid_tlv_len;
 878                         break;
 879                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 880                         if (tlv_len != sizeof(u32))
 881                                 goto invalid_tlv_len;
 882                         capa->n_scan_channels =
 883                                 le32_to_cpup((__le32 *)tlv_data);
 884                         break;
 885                 case IWL_UCODE_TLV_FW_VERSION: {
 886                         __le32 *ptr = (void *)tlv_data;
 887                         u32 major, minor;
 888                         u8 local_comp;
 889
 890                         if (tlv_len != sizeof(u32) * 3)
 891                                 goto invalid_tlv_len;
 892
 893                         major = le32_to_cpup(ptr++);
 894                         minor = le32_to_cpup(ptr++);
 895                         local_comp = le32_to_cpup(ptr);
 896
 897                         snprintf(drv->fw.fw_version,
 898                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 899                                  major, minor, local_comp);
 900                         break;
 901                         }
 902                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 903                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 904
 905                         if (pieces->dbg_dest_tlv) {
 906                                 IWL_ERR(drv,
 907                                         "dbg destination ignored, already exists\n");
 908                                 break;
 909                         }
 910
 911                         pieces->dbg_dest_tlv = dest;
 912                         IWL_INFO(drv, "Found debug destination: %s\n",
 913                                  get_fw_dbg_mode_string(dest->monitor_mode));
 914
 915                         drv->fw.dbg_dest_reg_num =
 916                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 917                                                    reg_ops);
 918                         drv->fw.dbg_dest_reg_num /=
 919                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 920
 921                         break;
 922                         }
 923                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 924                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 925
 926                         if (!pieces->dbg_dest_tlv) {
 927                                 IWL_ERR(drv,
 928                                         "Ignore dbg config %d - no destination configured\n",
 929                                         conf->id);
 930                                 break;
 931                         }
 932
 933                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 934                                 IWL_ERR(drv,
 935                                         "Skip unknown configuration: %d\n",
 936                                         conf->id);
 937                                 break;
 938                         }
 939
 940                         if (pieces->dbg_conf_tlv[conf->id]) {
 941                                 IWL_ERR(drv,
 942                                         "Ignore duplicate dbg config %d\n",
 943                                         conf->id);
 944                                 break;
 945                         }
 946
 947                         if (conf->usniffer)
 948                                 usniffer_req = true;
 949
 950                         IWL_INFO(drv, "Found debug configuration: %d\n",
 951                                  conf->id);
 952
 953                         pieces->dbg_conf_tlv[conf->id] = conf;
 954                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 955                         break;
 956                         }
 957                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 958                         struct iwl_fw_dbg_trigger_tlv *trigger =
 959                                 (void *)tlv_data;
 960                         u32 trigger_id = le32_to_cpu(trigger->id);
 961
 962                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 963                                 IWL_ERR(drv,
 964                                         "Skip unknown trigger: %u\n",
 965                                         trigger->id);
 966                                 break;
 967                         }
 968
 969                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 970                                 IWL_ERR(drv,
 971                                         "Ignore duplicate dbg trigger %u\n",
 972                                         trigger->id);
 973                                 break;
 974                         }
 975
 976                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
 977
 978                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
 979                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
 980                         break;
 981                         }
 982                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
 983                         *usniffer_images = true;
 984                         iwl_store_ucode_sec(pieces, tlv_data,
 985                                             IWL_UCODE_REGULAR_USNIFFER,
 986                                             tlv_len);
 987                         break;
 988                 case IWL_UCODE_TLV_PAGING:
 989                         if (tlv_len != sizeof(u32))
 990                                 goto invalid_tlv_len;
 991                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
 992
 993                         IWL_DEBUG_FW(drv,
 994                                      "Paging: paging enabled (size = %u bytes)\n",
 995                                      paging_mem_size);
 996
 997                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
 998                                 IWL_ERR(drv,
 999                                         "Paging: driver supports up to %lu bytes for paging image\n",
1000                                         MAX_PAGING_IMAGE_SIZE);
1001                                 return -EINVAL;
1002                         }
1003
1004                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1005                                 IWL_ERR(drv,
1006                                         "Paging: image isn't multiple %lu\n",
1007                                         FW_PAGING_SIZE);
1008                                 return -EINVAL;
1009                         }
1010
1011                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1012                                 paging_mem_size;
1013                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1014                         drv->fw.img[usniffer_img].paging_mem_size =
1015                                 paging_mem_size;
1016                         break;
1017                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1018                         if (tlv_len != sizeof(u32))
1019                                 goto invalid_tlv_len;
1020                         drv->fw.sdio_adma_addr =
1021                                 le32_to_cpup((__le32 *)tlv_data);
1022                         break;
1023                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1024                         if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len))
1025                                 goto invalid_tlv_len;
1026                         gscan_capa = true;
1027                         break;
1028                 default:
1029                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1030                         break;
1031                 }
1032         }
1033
1034         if (usniffer_req && !*usniffer_images) {
1035                 IWL_ERR(drv,
1036                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1037                 return -EINVAL;
1038         }
1039
1040         if (len) {
1041                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1042                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1043                 return -EINVAL;
1044         }
1045
1046         /*
1047          * If ucode advertises that it supports GSCAN but GSCAN
1048          * capabilities TLV is not present, warn and continue without GSCAN.
1049          */
1050         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1051             WARN(!gscan_capa,
1052                  "GSCAN is supported but capabilities TLV is unavailable\n"))
1053                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1054                             capa->_capa);
1055
1056         return 0;
1057
1058  invalid_tlv_len:
1059         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1060  tlv_error:
1061         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1062
1063         return -EINVAL;
1064 }
1065
1066 static int iwl_alloc_ucode(struct iwl_drv *drv,
1067                            struct iwl_firmware_pieces *pieces,
1068                            enum iwl_ucode_type type)
1069 {
1070         int i;
1071         for (i = 0;
1072              i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
1073              i++)
1074                 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
1075                                       get_sec(pieces, type, i)))
1076                         return -ENOMEM;
1077         return 0;
1078 }
1079
1080 static int validate_sec_sizes(struct iwl_drv *drv,
1081                               struct iwl_firmware_pieces *pieces,
1082                               const struct iwl_cfg *cfg)
1083 {
1084         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
1085                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1086                              IWL_UCODE_SECTION_INST));
1087         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
1088                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1089                              IWL_UCODE_SECTION_DATA));
1090         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
1091                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1092         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
1093                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1094
1095         /* Verify that uCode images will fit in card's SRAM. */
1096         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1097             cfg->max_inst_size) {
1098                 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
1099                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1100                                      IWL_UCODE_SECTION_INST));
1101                 return -1;
1102         }
1103
1104         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1105             cfg->max_data_size) {
1106                 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
1107                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1108                                      IWL_UCODE_SECTION_DATA));
1109                 return -1;
1110         }
1111
1112         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1113              cfg->max_inst_size) {
1114                 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
1115                         get_sec_size(pieces, IWL_UCODE_INIT,
1116                                      IWL_UCODE_SECTION_INST));
1117                 return -1;
1118         }
1119
1120         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1121             cfg->max_data_size) {
1122                 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
1123                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1124                                      IWL_UCODE_SECTION_DATA));
1125                 return -1;
1126         }
1127         return 0;
1128 }
1129
1130 static struct iwl_op_mode *
1131 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1132 {
1133         const struct iwl_op_mode_ops *ops = op->ops;
1134         struct dentry *dbgfs_dir = NULL;
1135         struct iwl_op_mode *op_mode = NULL;
1136
1137 #ifdef CONFIG_IWLWIFI_DEBUGFS
1138         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1139                                                 drv->dbgfs_drv);
1140         if (!drv->dbgfs_op_mode) {
1141                 IWL_ERR(drv,
1142                         "failed to create opmode debugfs directory\n");
1143                 return op_mode;
1144         }
1145         dbgfs_dir = drv->dbgfs_op_mode;
1146 #endif
1147
1148         op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
1149
1150 #ifdef CONFIG_IWLWIFI_DEBUGFS
1151         if (!op_mode) {
1152                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1153                 drv->dbgfs_op_mode = NULL;
1154         }
1155 #endif
1156
1157         return op_mode;
1158 }
1159
1160 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1161 {
1162         /* op_mode can be NULL if its start failed */
1163         if (drv->op_mode) {
1164                 iwl_op_mode_stop(drv->op_mode);
1165                 drv->op_mode = NULL;
1166
1167 #ifdef CONFIG_IWLWIFI_DEBUGFS
1168                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1169                 drv->dbgfs_op_mode = NULL;
1170 #endif
1171         }
1172 }
1173
1174 /**
1175  * iwl_req_fw_callback - callback when firmware was loaded
1176  *
1177  * If loaded successfully, copies the firmware into buffers
1178  * for the card to fetch (via DMA).
1179  */
1180 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1181 {
1182         struct iwl_drv *drv = context;
1183         struct iwl_fw *fw = &drv->fw;
1184         struct iwl_ucode_header *ucode;
1185         struct iwlwifi_opmode_table *op;
1186         int err;
1187         struct iwl_firmware_pieces *pieces;
1188         const unsigned int api_max = drv->cfg->ucode_api_max;
1189         unsigned int api_ok = drv->cfg->ucode_api_ok;
1190         const unsigned int api_min = drv->cfg->ucode_api_min;
1191         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1192         u32 api_ver;
1193         int i;
1194         bool load_module = false;
1195         bool usniffer_images = false;
1196
1197         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1198         fw->ucode_capa.standard_phy_calibration_size =
1199                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1200         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1201
1202         if (!api_ok)
1203                 api_ok = api_max;
1204
1205         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1206         if (!pieces)
1207                 return;
1208
1209         if (!ucode_raw) {
1210                 if (drv->fw_index <= api_ok)
1211                         IWL_ERR(drv,
1212                                 "request for firmware file '%s' failed.\n",
1213                                 drv->firmware_name);
1214                 goto try_again;
1215         }
1216
1217         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1218                        drv->firmware_name, ucode_raw->size);
1219
1220         /* Make sure that we got at least the API version number */
1221         if (ucode_raw->size < 4) {
1222                 IWL_ERR(drv, "File size way too small!\n");
1223                 goto try_again;
1224         }
1225
1226         /* Data from ucode file:  header followed by uCode images */
1227         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1228
1229         if (ucode->ver)
1230                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1231         else
1232                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1233                                              &fw->ucode_capa, &usniffer_images);
1234
1235         if (err)
1236                 goto try_again;
1237
1238         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1239                 api_ver = drv->fw.ucode_ver;
1240         else
1241                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1242
1243         /*
1244          * api_ver should match the api version forming part of the
1245          * firmware filename ... but we don't check for that and only rely
1246          * on the API version read from firmware header from here on forward
1247          */
1248         /* no api version check required for experimental uCode */
1249         if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1250                 if (api_ver < api_min || api_ver > api_max) {
1251                         IWL_ERR(drv,
1252                                 "Driver unable to support your firmware API. "
1253                                 "Driver supports v%u, firmware is v%u.\n",
1254                                 api_max, api_ver);
1255                         goto try_again;
1256                 }
1257
1258                 if (api_ver < api_ok) {
1259                         if (api_ok != api_max)
1260                                 IWL_ERR(drv, "Firmware has old API version, "
1261                                         "expected v%u through v%u, got v%u.\n",
1262                                         api_ok, api_max, api_ver);
1263                         else
1264                                 IWL_ERR(drv, "Firmware has old API version, "
1265                                         "expected v%u, got v%u.\n",
1266                                         api_max, api_ver);
1267                         IWL_ERR(drv, "New firmware can be obtained from "
1268                                       "http://www.intellinuxwireless.org/.\n");
1269                 }
1270         }
1271
1272         /*
1273          * In mvm uCode there is no difference between data and instructions
1274          * sections.
1275          */
1276         if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
1277                 goto try_again;
1278
1279         /* Allocate ucode buffers for card's bus-master loading ... */
1280
1281         /* Runtime instructions and 2 copies of data:
1282          * 1) unmodified from disk
1283          * 2) backup cache for save/restore during power-downs */
1284         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1285                 if (iwl_alloc_ucode(drv, pieces, i))
1286                         goto out_free_fw;
1287
1288         if (pieces->dbg_dest_tlv) {
1289                 drv->fw.dbg_dest_tlv =
1290                         kmemdup(pieces->dbg_dest_tlv,
1291                                 sizeof(*pieces->dbg_dest_tlv) +
1292                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1293                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1294
1295                 if (!drv->fw.dbg_dest_tlv)
1296                         goto out_free_fw;
1297         }
1298
1299         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1300                 if (pieces->dbg_conf_tlv[i]) {
1301                         drv->fw.dbg_conf_tlv_len[i] =
1302                                 pieces->dbg_conf_tlv_len[i];
1303                         drv->fw.dbg_conf_tlv[i] =
1304                                 kmemdup(pieces->dbg_conf_tlv[i],
1305                                         drv->fw.dbg_conf_tlv_len[i],
1306                                         GFP_KERNEL);
1307                         if (!drv->fw.dbg_conf_tlv[i])
1308                                 goto out_free_fw;
1309                 }
1310         }
1311
1312         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1313
1314         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1315                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1316         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1317         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1318                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1319         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1320                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1321         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1322                 sizeof(struct iwl_fw_dbg_trigger_stats);
1323         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1324                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1325         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1326                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1327         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1328                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1329         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1330                 sizeof(struct iwl_fw_dbg_trigger_ba);
1331         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1332                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1333
1334         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1335                 if (pieces->dbg_trigger_tlv[i]) {
1336                         /*
1337                          * If the trigger isn't long enough, WARN and exit.
1338                          * Someone is trying to debug something and he won't
1339                          * be able to catch the bug he is trying to chase.
1340                          * We'd better be noisy to be sure he knows what's
1341                          * going on.
1342                          */
1343                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1344                                     (trigger_tlv_sz[i] +
1345                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1346                                 goto out_free_fw;
1347                         drv->fw.dbg_trigger_tlv_len[i] =
1348                                 pieces->dbg_trigger_tlv_len[i];
1349                         drv->fw.dbg_trigger_tlv[i] =
1350                                 kmemdup(pieces->dbg_trigger_tlv[i],
1351                                         drv->fw.dbg_trigger_tlv_len[i],
1352                                         GFP_KERNEL);
1353                         if (!drv->fw.dbg_trigger_tlv[i])
1354                                 goto out_free_fw;
1355                 }
1356         }
1357
1358         /* Now that we can no longer fail, copy information */
1359
1360         /*
1361          * The (size - 16) / 12 formula is based on the information recorded
1362          * for each event, which is of mode 1 (including timestamp) for all
1363          * new microcodes that include this information.
1364          */
1365         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1366         if (pieces->init_evtlog_size)
1367                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1368         else
1369                 fw->init_evtlog_size =
1370                         drv->cfg->base_params->max_event_log_size;
1371         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1372         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1373         if (pieces->inst_evtlog_size)
1374                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1375         else
1376                 fw->inst_evtlog_size =
1377                         drv->cfg->base_params->max_event_log_size;
1378         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1379
1380         /*
1381          * figure out the offset of chain noise reset and gain commands
1382          * base on the size of standard phy calibration commands table size
1383          */
1384         if (fw->ucode_capa.standard_phy_calibration_size >
1385             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1386                 fw->ucode_capa.standard_phy_calibration_size =
1387                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1388
1389         /* We have our copies now, allow OS release its copies */
1390         release_firmware(ucode_raw);
1391
1392         mutex_lock(&iwlwifi_opmode_table_mtx);
1393         if (fw->mvm_fw)
1394                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1395         else
1396                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1397
1398         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1399                  drv->fw.fw_version, op->name);
1400
1401         /* add this device to the list of devices using this op_mode */
1402         list_add_tail(&drv->list, &op->drv);
1403
1404         if (op->ops) {
1405                 drv->op_mode = _iwl_op_mode_start(drv, op);
1406
1407                 if (!drv->op_mode) {
1408                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1409                         goto out_unbind;
1410                 }
1411         } else {
1412                 load_module = true;
1413         }
1414         mutex_unlock(&iwlwifi_opmode_table_mtx);
1415
1416         /*
1417          * Complete the firmware request last so that
1418          * a driver unbind (stop) doesn't run while we
1419          * are doing the start() above.
1420          */
1421         complete(&drv->request_firmware_complete);
1422
1423         /*
1424          * Load the module last so we don't block anything
1425          * else from proceeding if the module fails to load
1426          * or hangs loading.
1427          */
1428         if (load_module) {
1429                 err = request_module("%s", op->name);
1430 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1431                 if (err)
1432                         IWL_ERR(drv,
1433                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1434                                 op->name, err);
1435 #endif
1436         }
1437         kfree(pieces);
1438         return;
1439
1440  try_again:
1441         /* try next, if any */
1442         release_firmware(ucode_raw);
1443         if (iwl_request_firmware(drv, false))
1444                 goto out_unbind;
1445         kfree(pieces);
1446         return;
1447
1448  out_free_fw:
1449         IWL_ERR(drv, "failed to allocate pci memory\n");
1450         iwl_dealloc_ucode(drv);
1451         release_firmware(ucode_raw);
1452  out_unbind:
1453         kfree(pieces);
1454         complete(&drv->request_firmware_complete);
1455         device_release_driver(drv->trans->dev);
1456 }
1457
1458 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1459                               const struct iwl_cfg *cfg)
1460 {
1461         struct iwl_drv *drv;
1462         int ret;
1463
1464         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1465         if (!drv) {
1466                 ret = -ENOMEM;
1467                 goto err;
1468         }
1469
1470         drv->trans = trans;
1471         drv->dev = trans->dev;
1472         drv->cfg = cfg;
1473
1474         init_completion(&drv->request_firmware_complete);
1475         INIT_LIST_HEAD(&drv->list);
1476
1477 #ifdef CONFIG_IWLWIFI_DEBUGFS
1478         /* Create the device debugfs entries. */
1479         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1480                                             iwl_dbgfs_root);
1481
1482         if (!drv->dbgfs_drv) {
1483                 IWL_ERR(drv, "failed to create debugfs directory\n");
1484                 ret = -ENOMEM;
1485                 goto err_free_drv;
1486         }
1487
1488         /* Create transport layer debugfs dir */
1489         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1490
1491         if (!drv->trans->dbgfs_dir) {
1492                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1493                 ret = -ENOMEM;
1494                 goto err_free_dbgfs;
1495         }
1496 #endif
1497
1498         ret = iwl_request_firmware(drv, true);
1499         if (ret) {
1500                 IWL_ERR(trans, "Couldn't request the fw\n");
1501                 goto err_fw;
1502         }
1503
1504         return drv;
1505
1506 err_fw:
1507 #ifdef CONFIG_IWLWIFI_DEBUGFS
1508 err_free_dbgfs:
1509         debugfs_remove_recursive(drv->dbgfs_drv);
1510 err_free_drv:
1511 #endif
1512         kfree(drv);
1513 err:
1514         return ERR_PTR(ret);
1515 }
1516
1517 void iwl_drv_stop(struct iwl_drv *drv)
1518 {
1519         wait_for_completion(&drv->request_firmware_complete);
1520
1521         _iwl_op_mode_stop(drv);
1522
1523         iwl_dealloc_ucode(drv);
1524
1525         mutex_lock(&iwlwifi_opmode_table_mtx);
1526         /*
1527          * List is empty (this item wasn't added)
1528          * when firmware loading failed -- in that
1529          * case we can't remove it from any list.
1530          */
1531         if (!list_empty(&drv->list))
1532                 list_del(&drv->list);
1533         mutex_unlock(&iwlwifi_opmode_table_mtx);
1534
1535 #ifdef CONFIG_IWLWIFI_DEBUGFS
1536         debugfs_remove_recursive(drv->dbgfs_drv);
1537 #endif
1538
1539         kfree(drv);
1540 }
1541
1542
1543 /* shared module parameters */
1544 struct iwl_mod_params iwlwifi_mod_params = {
1545         .restart_fw = true,
1546         .bt_coex_active = true,
1547         .power_level = IWL_POWER_INDEX_1,
1548         .d0i3_disable = true,
1549         .d0i3_entry_delay = 1000,
1550 #ifndef CONFIG_IWLWIFI_UAPSD
1551         .uapsd_disable = true,
1552 #endif /* CONFIG_IWLWIFI_UAPSD */
1553         /* the rest are 0 by default */
1554 };
1555 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1556
1557 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1558 {
1559         int i;
1560         struct iwl_drv *drv;
1561         struct iwlwifi_opmode_table *op;
1562
1563         mutex_lock(&iwlwifi_opmode_table_mtx);
1564         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1565                 op = &iwlwifi_opmode_table[i];
1566                 if (strcmp(op->name, name))
1567                         continue;
1568                 op->ops = ops;
1569                 /* TODO: need to handle exceptional case */
1570                 list_for_each_entry(drv, &op->drv, list)
1571                         drv->op_mode = _iwl_op_mode_start(drv, op);
1572
1573                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1574                 return 0;
1575         }
1576         mutex_unlock(&iwlwifi_opmode_table_mtx);
1577         return -EIO;
1578 }
1579 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1580
1581 void iwl_opmode_deregister(const char *name)
1582 {
1583         int i;
1584         struct iwl_drv *drv;
1585
1586         mutex_lock(&iwlwifi_opmode_table_mtx);
1587         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1588                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1589                         continue;
1590                 iwlwifi_opmode_table[i].ops = NULL;
1591
1592                 /* call the stop routine for all devices */
1593                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1594                         _iwl_op_mode_stop(drv);
1595
1596                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1597                 return;
1598         }
1599         mutex_unlock(&iwlwifi_opmode_table_mtx);
1600 }
1601 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1602
1603 static int __init iwl_drv_init(void)
1604 {
1605         int i;
1606
1607         mutex_init(&iwlwifi_opmode_table_mtx);
1608
1609         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1610                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1611
1612         pr_info(DRV_DESCRIPTION "\n");
1613         pr_info(DRV_COPYRIGHT "\n");
1614
1615 #ifdef CONFIG_IWLWIFI_DEBUGFS
1616         /* Create the root of iwlwifi debugfs subsystem. */
1617         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1618
1619         if (!iwl_dbgfs_root)
1620                 return -EFAULT;
1621 #endif
1622
1623         return iwl_pci_register_driver();
1624 }
1625 module_init(iwl_drv_init);
1626
1627 static void __exit iwl_drv_exit(void)
1628 {
1629         iwl_pci_unregister_driver();
1630
1631 #ifdef CONFIG_IWLWIFI_DEBUGFS
1632         debugfs_remove_recursive(iwl_dbgfs_root);
1633 #endif
1634 }
1635 module_exit(iwl_drv_exit);
1636
1637 #ifdef CONFIG_IWLWIFI_DEBUG
1638 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1639                    S_IRUGO | S_IWUSR);
1640 MODULE_PARM_DESC(debug, "debug output mask");
1641 #endif
1642
1643 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1644 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1645 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1646 MODULE_PARM_DESC(11n_disable,
1647         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1648 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1649                    int, S_IRUGO);
1650 MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)");
1651 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1652 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1653
1654 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1655                    int, S_IRUGO);
1656 MODULE_PARM_DESC(antenna_coupling,
1657                  "specify antenna coupling in dB (default: 0 dB)");
1658
1659 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1660 MODULE_PARM_DESC(nvm_file, "NVM file name");
1661
1662 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1663                    bool, S_IRUGO);
1664 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1665
1666 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1667                    bool, S_IRUGO);
1668 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1669
1670 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1671                    bool, S_IRUGO | S_IWUSR);
1672 #ifdef CONFIG_IWLWIFI_UAPSD
1673 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
1674 #else
1675 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)");
1676 #endif
1677
1678 /*
1679  * set bt_coex_active to true, uCode will do kill/defer
1680  * every time the priority line is asserted (BT is sending signals on the
1681  * priority line in the PCIx).
1682  * set bt_coex_active to false, uCode will ignore the BT activity and
1683  * perform the normal operation
1684  *
1685  * User might experience transmit issue on some platform due to WiFi/BT
1686  * co-exist problem. The possible behaviors are:
1687  *   Able to scan and finding all the available AP
1688  *   Not able to associate with any AP
1689  * On those platforms, WiFi communication can be restored by set
1690  * "bt_coex_active" module parameter to "false"
1691  *
1692  * default: bt_coex_active = true (BT_COEX_ENABLE)
1693  */
1694 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1695                 bool, S_IRUGO);
1696 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1697
1698 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1699 MODULE_PARM_DESC(led_mode, "0=system default, "
1700                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1701
1702 module_param_named(power_save, iwlwifi_mod_params.power_save,
1703                 bool, S_IRUGO);
1704 MODULE_PARM_DESC(power_save,
1705                  "enable WiFi power management (default: disable)");
1706
1707 module_param_named(power_level, iwlwifi_mod_params.power_level,
1708                 int, S_IRUGO);
1709 MODULE_PARM_DESC(power_level,
1710                  "default power save level (range from 1 - 5, default: 1)");
1711
1712 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1713 MODULE_PARM_DESC(fw_monitor,
1714                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1715
1716 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1717                    uint, S_IRUGO);
1718 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");