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                 if (rev_step != 'A')
 247                         snprintf(drv->firmware_name,
 248                                  sizeof(drv->firmware_name), "%s%c-%s.ucode",
 249                                  name_pre, rev_step, tag);
 250         }
 251
 252         IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
 253                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 254                                 ? "EXPERIMENTAL " : "",
 255                        drv->firmware_name);
 256
 257         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 258                                        drv->trans->dev,
 259                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 260 }
 261
 262 struct fw_img_parsing {
 263         struct fw_sec sec[IWL_UCODE_SECTION_MAX];
 264         int sec_counter;
 265 };
 266
 267 /*
 268  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 269  */
 270 struct fw_sec_parsing {
 271         __le32 offset;
 272         const u8 data[];
 273 } __packed;
 274
 275 /**
 276  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 277  *
 278  * @ucode_type: the uCode to which the following default calib relates.
 279  * @calib: default calibrations.
 280  */
 281 struct iwl_tlv_calib_data {
 282         __le32 ucode_type;
 283         struct iwl_tlv_calib_ctrl calib;
 284 } __packed;
 285
 286 struct iwl_firmware_pieces {
 287         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 288
 289         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 290         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 291
 292         /* FW debug data parsed for driver usage */
 293         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 294         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 295         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 296         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 297         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 298 };
 299
 300 /*
 301  * These functions are just to extract uCode section data from the pieces
 302  * structure.
 303  */
 304 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 305                               enum iwl_ucode_type type,
 306                               int  sec)
 307 {
 308         return &pieces->img[type].sec[sec];
 309 }
 310
 311 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 312                          enum iwl_ucode_type type,
 313                          int sec,
 314                          const void *data)
 315 {
 316         pieces->img[type].sec[sec].data = data;
 317 }
 318
 319 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 320                          enum iwl_ucode_type type,
 321                          int sec,
 322                          size_t size)
 323 {
 324         pieces->img[type].sec[sec].size = size;
 325 }
 326
 327 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 328                            enum iwl_ucode_type type,
 329                            int sec)
 330 {
 331         return pieces->img[type].sec[sec].size;
 332 }
 333
 334 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 335                            enum iwl_ucode_type type,
 336                            int sec,
 337                            u32 offset)
 338 {
 339         pieces->img[type].sec[sec].offset = offset;
 340 }
 341
 342 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 343 {
 344         int i, j;
 345         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 346         struct iwl_fw_cipher_scheme *fwcs;
 347         struct ieee80211_cipher_scheme *cs;
 348         u32 cipher;
 349
 350         if (len < sizeof(*l) ||
 351             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 352                 return -EINVAL;
 353
 354         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 355                 fwcs = &l->cs[j];
 356                 cipher = le32_to_cpu(fwcs->cipher);
 357
 358                 /* we skip schemes with zero cipher suite selector */
 359                 if (!cipher)
 360                         continue;
 361
 362                 cs = &fw->cs[j++];
 363                 cs->cipher = cipher;
 364                 cs->iftype = BIT(NL80211_IFTYPE_STATION);
 365                 cs->hdr_len = fwcs->hdr_len;
 366                 cs->pn_len = fwcs->pn_len;
 367                 cs->pn_off = fwcs->pn_off;
 368                 cs->key_idx_off = fwcs->key_idx_off;
 369                 cs->key_idx_mask = fwcs->key_idx_mask;
 370                 cs->key_idx_shift = fwcs->key_idx_shift;
 371                 cs->mic_len = fwcs->mic_len;
 372         }
 373
 374         return 0;
 375 }
 376
 377 static int iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 378                                 const u32 len)
 379 {
 380         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 381         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 382
 383         if (len < sizeof(*fw_capa))
 384                 return -EINVAL;
 385
 386         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 387         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 388         capa->max_ap_cache_per_scan =
 389                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 390         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 391         capa->max_scan_reporting_threshold =
 392                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 393         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 394         capa->max_significant_change_aps =
 395                 le32_to_cpu(fw_capa->max_significant_change_aps);
 396         capa->max_bssid_history_entries =
 397                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 398         return 0;
 399 }
 400
 401 /*
 402  * Gets uCode section from tlv.
 403  */
 404 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 405                                const void *data, enum iwl_ucode_type type,
 406                                int size)
 407 {
 408         struct fw_img_parsing *img;
 409         struct fw_sec *sec;
 410         struct fw_sec_parsing *sec_parse;
 411
 412         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 413                 return -1;
 414
 415         sec_parse = (struct fw_sec_parsing *)data;
 416
 417         img = &pieces->img[type];
 418         sec = &img->sec[img->sec_counter];
 419
 420         sec->offset = le32_to_cpu(sec_parse->offset);
 421         sec->data = sec_parse->data;
 422         sec->size = size - sizeof(sec_parse->offset);
 423
 424         ++img->sec_counter;
 425
 426         return 0;
 427 }
 428
 429 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 430 {
 431         struct iwl_tlv_calib_data *def_calib =
 432                                         (struct iwl_tlv_calib_data *)data;
 433         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 434         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 435                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 436                         ucode_type);
 437                 return -EINVAL;
 438         }
 439         drv->fw.default_calib[ucode_type].flow_trigger =
 440                 def_calib->calib.flow_trigger;
 441         drv->fw.default_calib[ucode_type].event_trigger =
 442                 def_calib->calib.event_trigger;
 443
 444         return 0;
 445 }
 446
 447 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 448                                    struct iwl_ucode_capabilities *capa)
 449 {
 450         const struct iwl_ucode_api *ucode_api = (void *)data;
 451         u32 api_index = le32_to_cpu(ucode_api->api_index);
 452         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 453         int i;
 454
 455         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 456                 IWL_ERR(drv,
 457                         "api flags index %d larger than supported by driver\n",
 458                         api_index);
 459                 /* don't return an error so we can load FW that has more bits */
 460                 return 0;
 461         }
 462
 463         for (i = 0; i < 32; i++) {
 464                 if (api_flags & BIT(i))
 465                         __set_bit(i + 32 * api_index, capa->_api);
 466         }
 467
 468         return 0;
 469 }
 470
 471 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 472                                       struct iwl_ucode_capabilities *capa)
 473 {
 474         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 475         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 476         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 477         int i;
 478
 479         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 480                 IWL_ERR(drv,
 481                         "capa flags index %d larger than supported by driver\n",
 482                         api_index);
 483                 /* don't return an error so we can load FW that has more bits */
 484                 return 0;
 485         }
 486
 487         for (i = 0; i < 32; i++) {
 488                 if (api_flags & BIT(i))
 489                         __set_bit(i + 32 * api_index, capa->_capa);
 490         }
 491
 492         return 0;
 493 }
 494
 495 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 496                                     const struct firmware *ucode_raw,
 497                                     struct iwl_firmware_pieces *pieces)
 498 {
 499         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 500         u32 api_ver, hdr_size, build;
 501         char buildstr[25];
 502         const u8 *src;
 503
 504         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 505         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 506
 507         switch (api_ver) {
 508         default:
 509                 hdr_size = 28;
 510                 if (ucode_raw->size < hdr_size) {
 511                         IWL_ERR(drv, "File size too small!\n");
 512                         return -EINVAL;
 513                 }
 514                 build = le32_to_cpu(ucode->u.v2.build);
 515                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 516                              le32_to_cpu(ucode->u.v2.inst_size));
 517                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 518                              le32_to_cpu(ucode->u.v2.data_size));
 519                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 520                              le32_to_cpu(ucode->u.v2.init_size));
 521                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 522                              le32_to_cpu(ucode->u.v2.init_data_size));
 523                 src = ucode->u.v2.data;
 524                 break;
 525         case 0:
 526         case 1:
 527         case 2:
 528                 hdr_size = 24;
 529                 if (ucode_raw->size < hdr_size) {
 530                         IWL_ERR(drv, "File size too small!\n");
 531                         return -EINVAL;
 532                 }
 533                 build = 0;
 534                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 535                              le32_to_cpu(ucode->u.v1.inst_size));
 536                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 537                              le32_to_cpu(ucode->u.v1.data_size));
 538                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 539                              le32_to_cpu(ucode->u.v1.init_size));
 540                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 541                              le32_to_cpu(ucode->u.v1.init_data_size));
 542                 src = ucode->u.v1.data;
 543                 break;
 544         }
 545
 546         if (build)
 547                 sprintf(buildstr, " build %u%s", build,
 548                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 549                                 ? " (EXP)" : "");
 550         else
 551                 buildstr[0] = '\0';
 552
 553         snprintf(drv->fw.fw_version,
 554                  sizeof(drv->fw.fw_version),
 555                  "%u.%u.%u.%u%s",
 556                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 557                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 558                  IWL_UCODE_API(drv->fw.ucode_ver),
 559                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 560                  buildstr);
 561
 562         /* Verify size of file vs. image size info in file's header */
 563
 564         if (ucode_raw->size != hdr_size +
 565             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 566             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 567             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 568             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 569
 570                 IWL_ERR(drv,
 571                         "uCode file size %d does not match expected size\n",
 572                         (int)ucode_raw->size);
 573                 return -EINVAL;
 574         }
 575
 576
 577         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 578         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 579         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 580                        IWLAGN_RTC_INST_LOWER_BOUND);
 581         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 582         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 583         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 584                        IWLAGN_RTC_DATA_LOWER_BOUND);
 585         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 586         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 587         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 588                        IWLAGN_RTC_INST_LOWER_BOUND);
 589         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 590         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 591         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 592                        IWLAGN_RTC_DATA_LOWER_BOUND);
 593         return 0;
 594 }
 595
 596 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 597                                 const struct firmware *ucode_raw,
 598                                 struct iwl_firmware_pieces *pieces,
 599                                 struct iwl_ucode_capabilities *capa,
 600                                 bool *usniffer_images)
 601 {
 602         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 603         struct iwl_ucode_tlv *tlv;
 604         size_t len = ucode_raw->size;
 605         const u8 *data;
 606         u32 tlv_len;
 607         u32 usniffer_img;
 608         enum iwl_ucode_tlv_type tlv_type;
 609         const u8 *tlv_data;
 610         char buildstr[25];
 611         u32 build, paging_mem_size;
 612         int num_of_cpus;
 613         bool usniffer_req = false;
 614         bool gscan_capa = false;
 615
 616         if (len < sizeof(*ucode)) {
 617                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 618                 return -EINVAL;
 619         }
 620
 621         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 622                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 623                         le32_to_cpu(ucode->magic));
 624                 return -EINVAL;
 625         }
 626
 627         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 628         memcpy(drv->fw.human_readable, ucode->human_readable,
 629                sizeof(drv->fw.human_readable));
 630         build = le32_to_cpu(ucode->build);
 631
 632         if (build)
 633                 sprintf(buildstr, " build %u%s", build,
 634                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 635                                 ? " (EXP)" : "");
 636         else
 637                 buildstr[0] = '\0';
 638
 639         snprintf(drv->fw.fw_version,
 640                  sizeof(drv->fw.fw_version),
 641                  "%u.%u.%u.%u%s",
 642                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 643                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 644                  IWL_UCODE_API(drv->fw.ucode_ver),
 645                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 646                  buildstr);
 647
 648         data = ucode->data;
 649
 650         len -= sizeof(*ucode);
 651
 652         while (len >= sizeof(*tlv)) {
 653                 len -= sizeof(*tlv);
 654                 tlv = (void *)data;
 655
 656                 tlv_len = le32_to_cpu(tlv->length);
 657                 tlv_type = le32_to_cpu(tlv->type);
 658                 tlv_data = tlv->data;
 659
 660                 if (len < tlv_len) {
 661                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 662                                 len, tlv_len);
 663                         return -EINVAL;
 664                 }
 665                 len -= ALIGN(tlv_len, 4);
 666                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 667
 668                 switch (tlv_type) {
 669                 case IWL_UCODE_TLV_INST:
 670                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 671                                      IWL_UCODE_SECTION_INST, tlv_data);
 672                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 673                                      IWL_UCODE_SECTION_INST, tlv_len);
 674                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 675                                        IWL_UCODE_SECTION_INST,
 676                                        IWLAGN_RTC_INST_LOWER_BOUND);
 677                         break;
 678                 case IWL_UCODE_TLV_DATA:
 679                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 680                                      IWL_UCODE_SECTION_DATA, tlv_data);
 681                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 682                                      IWL_UCODE_SECTION_DATA, tlv_len);
 683                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 684                                        IWL_UCODE_SECTION_DATA,
 685                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 686                         break;
 687                 case IWL_UCODE_TLV_INIT:
 688                         set_sec_data(pieces, IWL_UCODE_INIT,
 689                                      IWL_UCODE_SECTION_INST, tlv_data);
 690                         set_sec_size(pieces, IWL_UCODE_INIT,
 691                                      IWL_UCODE_SECTION_INST, tlv_len);
 692                         set_sec_offset(pieces, IWL_UCODE_INIT,
 693                                        IWL_UCODE_SECTION_INST,
 694                                        IWLAGN_RTC_INST_LOWER_BOUND);
 695                         break;
 696                 case IWL_UCODE_TLV_INIT_DATA:
 697                         set_sec_data(pieces, IWL_UCODE_INIT,
 698                                      IWL_UCODE_SECTION_DATA, tlv_data);
 699                         set_sec_size(pieces, IWL_UCODE_INIT,
 700                                      IWL_UCODE_SECTION_DATA, tlv_len);
 701                         set_sec_offset(pieces, IWL_UCODE_INIT,
 702                                        IWL_UCODE_SECTION_DATA,
 703                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 704                         break;
 705                 case IWL_UCODE_TLV_BOOT:
 706                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 707                         break;
 708                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 709                         if (tlv_len != sizeof(u32))
 710                                 goto invalid_tlv_len;
 711                         capa->max_probe_length =
 712                                         le32_to_cpup((__le32 *)tlv_data);
 713                         break;
 714                 case IWL_UCODE_TLV_PAN:
 715                         if (tlv_len)
 716                                 goto invalid_tlv_len;
 717                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 718                         break;
 719                 case IWL_UCODE_TLV_FLAGS:
 720                         /* must be at least one u32 */
 721                         if (tlv_len < sizeof(u32))
 722                                 goto invalid_tlv_len;
 723                         /* and a proper number of u32s */
 724                         if (tlv_len % sizeof(u32))
 725                                 goto invalid_tlv_len;
 726                         /*
 727                          * This driver only reads the first u32 as
 728                          * right now no more features are defined,
 729                          * if that changes then either the driver
 730                          * will not work with the new firmware, or
 731                          * it'll not take advantage of new features.
 732                          */
 733                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 734                         break;
 735                 case IWL_UCODE_TLV_API_CHANGES_SET:
 736                         if (tlv_len != sizeof(struct iwl_ucode_api))
 737                                 goto invalid_tlv_len;
 738                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 739                                 goto tlv_error;
 740                         break;
 741                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 742                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 743                                 goto invalid_tlv_len;
 744                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 745                                 goto tlv_error;
 746                         break;
 747                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 748                         if (tlv_len != sizeof(u32))
 749                                 goto invalid_tlv_len;
 750                         pieces->init_evtlog_ptr =
 751                                         le32_to_cpup((__le32 *)tlv_data);
 752                         break;
 753                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 754                         if (tlv_len != sizeof(u32))
 755                                 goto invalid_tlv_len;
 756                         pieces->init_evtlog_size =
 757                                         le32_to_cpup((__le32 *)tlv_data);
 758                         break;
 759                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 760                         if (tlv_len != sizeof(u32))
 761                                 goto invalid_tlv_len;
 762                         pieces->init_errlog_ptr =
 763                                         le32_to_cpup((__le32 *)tlv_data);
 764                         break;
 765                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 766                         if (tlv_len != sizeof(u32))
 767                                 goto invalid_tlv_len;
 768                         pieces->inst_evtlog_ptr =
 769                                         le32_to_cpup((__le32 *)tlv_data);
 770                         break;
 771                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 772                         if (tlv_len != sizeof(u32))
 773                                 goto invalid_tlv_len;
 774                         pieces->inst_evtlog_size =
 775                                         le32_to_cpup((__le32 *)tlv_data);
 776                         break;
 777                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 778                         if (tlv_len != sizeof(u32))
 779                                 goto invalid_tlv_len;
 780                         pieces->inst_errlog_ptr =
 781                                         le32_to_cpup((__le32 *)tlv_data);
 782                         break;
 783                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 784                         if (tlv_len)
 785                                 goto invalid_tlv_len;
 786                         drv->fw.enhance_sensitivity_table = true;
 787                         break;
 788                 case IWL_UCODE_TLV_WOWLAN_INST:
 789                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 790                                      IWL_UCODE_SECTION_INST, tlv_data);
 791                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 792                                      IWL_UCODE_SECTION_INST, tlv_len);
 793                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 794                                        IWL_UCODE_SECTION_INST,
 795                                        IWLAGN_RTC_INST_LOWER_BOUND);
 796                         break;
 797                 case IWL_UCODE_TLV_WOWLAN_DATA:
 798                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 799                                      IWL_UCODE_SECTION_DATA, tlv_data);
 800                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 801                                      IWL_UCODE_SECTION_DATA, tlv_len);
 802                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 803                                        IWL_UCODE_SECTION_DATA,
 804                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 805                         break;
 806                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 807                         if (tlv_len != sizeof(u32))
 808                                 goto invalid_tlv_len;
 809                         capa->standard_phy_calibration_size =
 810                                         le32_to_cpup((__le32 *)tlv_data);
 811                         break;
 812                  case IWL_UCODE_TLV_SEC_RT:
 813                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 814                                             tlv_len);
 815                         drv->fw.mvm_fw = true;
 816                         break;
 817                 case IWL_UCODE_TLV_SEC_INIT:
 818                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 819                                             tlv_len);
 820                         drv->fw.mvm_fw = true;
 821                         break;
 822                 case IWL_UCODE_TLV_SEC_WOWLAN:
 823                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 824                                             tlv_len);
 825                         drv->fw.mvm_fw = true;
 826                         break;
 827                 case IWL_UCODE_TLV_DEF_CALIB:
 828                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 829                                 goto invalid_tlv_len;
 830                         if (iwl_set_default_calib(drv, tlv_data))
 831                                 goto tlv_error;
 832                         break;
 833                 case IWL_UCODE_TLV_PHY_SKU:
 834                         if (tlv_len != sizeof(u32))
 835                                 goto invalid_tlv_len;
 836                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 837                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 838                                                 FW_PHY_CFG_TX_CHAIN) >>
 839                                                 FW_PHY_CFG_TX_CHAIN_POS;
 840                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 841                                                 FW_PHY_CFG_RX_CHAIN) >>
 842                                                 FW_PHY_CFG_RX_CHAIN_POS;
 843                         break;
 844                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 845                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 846                                             tlv_len);
 847                         drv->fw.mvm_fw = true;
 848                         break;
 849                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 850                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 851                                             tlv_len);
 852                         drv->fw.mvm_fw = true;
 853                         break;
 854                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 855                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 856                                             tlv_len);
 857                         drv->fw.mvm_fw = true;
 858                         break;
 859                 case IWL_UCODE_TLV_NUM_OF_CPU:
 860                         if (tlv_len != sizeof(u32))
 861                                 goto invalid_tlv_len;
 862                         num_of_cpus =
 863                                 le32_to_cpup((__le32 *)tlv_data);
 864
 865                         if (num_of_cpus == 2) {
 866                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 867                                         true;
 868                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 869                                         true;
 870                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 871                                         true;
 872                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 873                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 874                                 return -EINVAL;
 875                         }
 876                         break;
 877                 case IWL_UCODE_TLV_CSCHEME:
 878                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 879                                 goto invalid_tlv_len;
 880                         break;
 881                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 882                         if (tlv_len != sizeof(u32))
 883                                 goto invalid_tlv_len;
 884                         capa->n_scan_channels =
 885                                 le32_to_cpup((__le32 *)tlv_data);
 886                         break;
 887                 case IWL_UCODE_TLV_FW_VERSION: {
 888                         __le32 *ptr = (void *)tlv_data;
 889                         u32 major, minor;
 890                         u8 local_comp;
 891
 892                         if (tlv_len != sizeof(u32) * 3)
 893                                 goto invalid_tlv_len;
 894
 895                         major = le32_to_cpup(ptr++);
 896                         minor = le32_to_cpup(ptr++);
 897                         local_comp = le32_to_cpup(ptr);
 898
 899                         snprintf(drv->fw.fw_version,
 900                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 901                                  major, minor, local_comp);
 902                         break;
 903                         }
 904                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 905                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 906
 907                         if (pieces->dbg_dest_tlv) {
 908                                 IWL_ERR(drv,
 909                                         "dbg destination ignored, already exists\n");
 910                                 break;
 911                         }
 912
 913                         pieces->dbg_dest_tlv = dest;
 914                         IWL_INFO(drv, "Found debug destination: %s\n",
 915                                  get_fw_dbg_mode_string(dest->monitor_mode));
 916
 917                         drv->fw.dbg_dest_reg_num =
 918                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 919                                                    reg_ops);
 920                         drv->fw.dbg_dest_reg_num /=
 921                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 922
 923                         break;
 924                         }
 925                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 926                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 927
 928                         if (!pieces->dbg_dest_tlv) {
 929                                 IWL_ERR(drv,
 930                                         "Ignore dbg config %d - no destination configured\n",
 931                                         conf->id);
 932                                 break;
 933                         }
 934
 935                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 936                                 IWL_ERR(drv,
 937                                         "Skip unknown configuration: %d\n",
 938                                         conf->id);
 939                                 break;
 940                         }
 941
 942                         if (pieces->dbg_conf_tlv[conf->id]) {
 943                                 IWL_ERR(drv,
 944                                         "Ignore duplicate dbg config %d\n",
 945                                         conf->id);
 946                                 break;
 947                         }
 948
 949                         if (conf->usniffer)
 950                                 usniffer_req = true;
 951
 952                         IWL_INFO(drv, "Found debug configuration: %d\n",
 953                                  conf->id);
 954
 955                         pieces->dbg_conf_tlv[conf->id] = conf;
 956                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 957                         break;
 958                         }
 959                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 960                         struct iwl_fw_dbg_trigger_tlv *trigger =
 961                                 (void *)tlv_data;
 962                         u32 trigger_id = le32_to_cpu(trigger->id);
 963
 964                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 965                                 IWL_ERR(drv,
 966                                         "Skip unknown trigger: %u\n",
 967                                         trigger->id);
 968                                 break;
 969                         }
 970
 971                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 972                                 IWL_ERR(drv,
 973                                         "Ignore duplicate dbg trigger %u\n",
 974                                         trigger->id);
 975                                 break;
 976                         }
 977
 978                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
 979
 980                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
 981                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
 982                         break;
 983                         }
 984                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
 985                         *usniffer_images = true;
 986                         iwl_store_ucode_sec(pieces, tlv_data,
 987                                             IWL_UCODE_REGULAR_USNIFFER,
 988                                             tlv_len);
 989                         break;
 990                 case IWL_UCODE_TLV_PAGING:
 991                         if (tlv_len != sizeof(u32))
 992                                 goto invalid_tlv_len;
 993                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
 994
 995                         IWL_DEBUG_FW(drv,
 996                                      "Paging: paging enabled (size = %u bytes)\n",
 997                                      paging_mem_size);
 998
 999                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1000                                 IWL_ERR(drv,
1001                                         "Paging: driver supports up to %lu bytes for paging image\n",
1002                                         MAX_PAGING_IMAGE_SIZE);
1003                                 return -EINVAL;
1004                         }
1005
1006                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1007                                 IWL_ERR(drv,
1008                                         "Paging: image isn't multiple %lu\n",
1009                                         FW_PAGING_SIZE);
1010                                 return -EINVAL;
1011                         }
1012
1013                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1014                                 paging_mem_size;
1015                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1016                         drv->fw.img[usniffer_img].paging_mem_size =
1017                                 paging_mem_size;
1018                         break;
1019                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1020                         if (tlv_len != sizeof(u32))
1021                                 goto invalid_tlv_len;
1022                         drv->fw.sdio_adma_addr =
1023                                 le32_to_cpup((__le32 *)tlv_data);
1024                         break;
1025                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1026                         if (iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len))
1027                                 goto invalid_tlv_len;
1028                         gscan_capa = true;
1029                         break;
1030                 default:
1031                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1032                         break;
1033                 }
1034         }
1035
1036         if (usniffer_req && !*usniffer_images) {
1037                 IWL_ERR(drv,
1038                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1039                 return -EINVAL;
1040         }
1041
1042         if (len) {
1043                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1044                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1045                 return -EINVAL;
1046         }
1047
1048         /*
1049          * If ucode advertises that it supports GSCAN but GSCAN
1050          * capabilities TLV is not present, warn and continue without GSCAN.
1051          */
1052         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1053             WARN(!gscan_capa,
1054                  "GSCAN is supported but capabilities TLV is unavailable\n"))
1055                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1056                             capa->_capa);
1057
1058         return 0;
1059
1060  invalid_tlv_len:
1061         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1062  tlv_error:
1063         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1064
1065         return -EINVAL;
1066 }
1067
1068 static int iwl_alloc_ucode(struct iwl_drv *drv,
1069                            struct iwl_firmware_pieces *pieces,
1070                            enum iwl_ucode_type type)
1071 {
1072         int i;
1073         for (i = 0;
1074              i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
1075              i++)
1076                 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
1077                                       get_sec(pieces, type, i)))
1078                         return -ENOMEM;
1079         return 0;
1080 }
1081
1082 static int validate_sec_sizes(struct iwl_drv *drv,
1083                               struct iwl_firmware_pieces *pieces,
1084                               const struct iwl_cfg *cfg)
1085 {
1086         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
1087                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1088                              IWL_UCODE_SECTION_INST));
1089         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
1090                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1091                              IWL_UCODE_SECTION_DATA));
1092         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
1093                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1094         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
1095                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1096
1097         /* Verify that uCode images will fit in card's SRAM. */
1098         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1099             cfg->max_inst_size) {
1100                 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
1101                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1102                                      IWL_UCODE_SECTION_INST));
1103                 return -1;
1104         }
1105
1106         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1107             cfg->max_data_size) {
1108                 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
1109                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1110                                      IWL_UCODE_SECTION_DATA));
1111                 return -1;
1112         }
1113
1114         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1115              cfg->max_inst_size) {
1116                 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
1117                         get_sec_size(pieces, IWL_UCODE_INIT,
1118                                      IWL_UCODE_SECTION_INST));
1119                 return -1;
1120         }
1121
1122         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1123             cfg->max_data_size) {
1124                 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
1125                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1126                                      IWL_UCODE_SECTION_DATA));
1127                 return -1;
1128         }
1129         return 0;
1130 }
1131
1132 static struct iwl_op_mode *
1133 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1134 {
1135         const struct iwl_op_mode_ops *ops = op->ops;
1136         struct dentry *dbgfs_dir = NULL;
1137         struct iwl_op_mode *op_mode = NULL;
1138
1139 #ifdef CONFIG_IWLWIFI_DEBUGFS
1140         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1141                                                 drv->dbgfs_drv);
1142         if (!drv->dbgfs_op_mode) {
1143                 IWL_ERR(drv,
1144                         "failed to create opmode debugfs directory\n");
1145                 return op_mode;
1146         }
1147         dbgfs_dir = drv->dbgfs_op_mode;
1148 #endif
1149
1150         op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
1151
1152 #ifdef CONFIG_IWLWIFI_DEBUGFS
1153         if (!op_mode) {
1154                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1155                 drv->dbgfs_op_mode = NULL;
1156         }
1157 #endif
1158
1159         return op_mode;
1160 }
1161
1162 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1163 {
1164         /* op_mode can be NULL if its start failed */
1165         if (drv->op_mode) {
1166                 iwl_op_mode_stop(drv->op_mode);
1167                 drv->op_mode = NULL;
1168
1169 #ifdef CONFIG_IWLWIFI_DEBUGFS
1170                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1171                 drv->dbgfs_op_mode = NULL;
1172 #endif
1173         }
1174 }
1175
1176 /**
1177  * iwl_req_fw_callback - callback when firmware was loaded
1178  *
1179  * If loaded successfully, copies the firmware into buffers
1180  * for the card to fetch (via DMA).
1181  */
1182 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1183 {
1184         struct iwl_drv *drv = context;
1185         struct iwl_fw *fw = &drv->fw;
1186         struct iwl_ucode_header *ucode;
1187         struct iwlwifi_opmode_table *op;
1188         int err;
1189         struct iwl_firmware_pieces *pieces;
1190         const unsigned int api_max = drv->cfg->ucode_api_max;
1191         unsigned int api_ok = drv->cfg->ucode_api_ok;
1192         const unsigned int api_min = drv->cfg->ucode_api_min;
1193         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1194         u32 api_ver;
1195         int i;
1196         bool load_module = false;
1197         bool usniffer_images = false;
1198
1199         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1200         fw->ucode_capa.standard_phy_calibration_size =
1201                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1202         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1203
1204         if (!api_ok)
1205                 api_ok = api_max;
1206
1207         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1208         if (!pieces)
1209                 return;
1210
1211         if (!ucode_raw) {
1212                 if (drv->fw_index <= api_ok)
1213                         IWL_ERR(drv,
1214                                 "request for firmware file '%s' failed.\n",
1215                                 drv->firmware_name);
1216                 goto try_again;
1217         }
1218
1219         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1220                        drv->firmware_name, ucode_raw->size);
1221
1222         /* Make sure that we got at least the API version number */
1223         if (ucode_raw->size < 4) {
1224                 IWL_ERR(drv, "File size way too small!\n");
1225                 goto try_again;
1226         }
1227
1228         /* Data from ucode file:  header followed by uCode images */
1229         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1230
1231         if (ucode->ver)
1232                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1233         else
1234                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1235                                              &fw->ucode_capa, &usniffer_images);
1236
1237         if (err)
1238                 goto try_again;
1239
1240         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1241                 api_ver = drv->fw.ucode_ver;
1242         else
1243                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1244
1245         /*
1246          * api_ver should match the api version forming part of the
1247          * firmware filename ... but we don't check for that and only rely
1248          * on the API version read from firmware header from here on forward
1249          */
1250         /* no api version check required for experimental uCode */
1251         if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1252                 if (api_ver < api_min || api_ver > api_max) {
1253                         IWL_ERR(drv,
1254                                 "Driver unable to support your firmware API. "
1255                                 "Driver supports v%u, firmware is v%u.\n",
1256                                 api_max, api_ver);
1257                         goto try_again;
1258                 }
1259
1260                 if (api_ver < api_ok) {
1261                         if (api_ok != api_max)
1262                                 IWL_ERR(drv, "Firmware has old API version, "
1263                                         "expected v%u through v%u, got v%u.\n",
1264                                         api_ok, api_max, api_ver);
1265                         else
1266                                 IWL_ERR(drv, "Firmware has old API version, "
1267                                         "expected v%u, got v%u.\n",
1268                                         api_max, api_ver);
1269                         IWL_ERR(drv, "New firmware can be obtained from "
1270                                       "http://www.intellinuxwireless.org/.\n");
1271                 }
1272         }
1273
1274         /*
1275          * In mvm uCode there is no difference between data and instructions
1276          * sections.
1277          */
1278         if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
1279                 goto try_again;
1280
1281         /* Allocate ucode buffers for card's bus-master loading ... */
1282
1283         /* Runtime instructions and 2 copies of data:
1284          * 1) unmodified from disk
1285          * 2) backup cache for save/restore during power-downs */
1286         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1287                 if (iwl_alloc_ucode(drv, pieces, i))
1288                         goto out_free_fw;
1289
1290         if (pieces->dbg_dest_tlv) {
1291                 drv->fw.dbg_dest_tlv =
1292                         kmemdup(pieces->dbg_dest_tlv,
1293                                 sizeof(*pieces->dbg_dest_tlv) +
1294                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1295                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1296
1297                 if (!drv->fw.dbg_dest_tlv)
1298                         goto out_free_fw;
1299         }
1300
1301         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1302                 if (pieces->dbg_conf_tlv[i]) {
1303                         drv->fw.dbg_conf_tlv_len[i] =
1304                                 pieces->dbg_conf_tlv_len[i];
1305                         drv->fw.dbg_conf_tlv[i] =
1306                                 kmemdup(pieces->dbg_conf_tlv[i],
1307                                         drv->fw.dbg_conf_tlv_len[i],
1308                                         GFP_KERNEL);
1309                         if (!drv->fw.dbg_conf_tlv[i])
1310                                 goto out_free_fw;
1311                 }
1312         }
1313
1314         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1315
1316         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1317                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1318         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1319         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1320                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1321         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1322                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1323         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1324                 sizeof(struct iwl_fw_dbg_trigger_stats);
1325         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1326                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1327         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1328                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1329         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1330                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1331         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1332                 sizeof(struct iwl_fw_dbg_trigger_ba);
1333         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1334                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1335
1336         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1337                 if (pieces->dbg_trigger_tlv[i]) {
1338                         /*
1339                          * If the trigger isn't long enough, WARN and exit.
1340                          * Someone is trying to debug something and he won't
1341                          * be able to catch the bug he is trying to chase.
1342                          * We'd better be noisy to be sure he knows what's
1343                          * going on.
1344                          */
1345                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1346                                     (trigger_tlv_sz[i] +
1347                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1348                                 goto out_free_fw;
1349                         drv->fw.dbg_trigger_tlv_len[i] =
1350                                 pieces->dbg_trigger_tlv_len[i];
1351                         drv->fw.dbg_trigger_tlv[i] =
1352                                 kmemdup(pieces->dbg_trigger_tlv[i],
1353                                         drv->fw.dbg_trigger_tlv_len[i],
1354                                         GFP_KERNEL);
1355                         if (!drv->fw.dbg_trigger_tlv[i])
1356                                 goto out_free_fw;
1357                 }
1358         }
1359
1360         /* Now that we can no longer fail, copy information */
1361
1362         /*
1363          * The (size - 16) / 12 formula is based on the information recorded
1364          * for each event, which is of mode 1 (including timestamp) for all
1365          * new microcodes that include this information.
1366          */
1367         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1368         if (pieces->init_evtlog_size)
1369                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1370         else
1371                 fw->init_evtlog_size =
1372                         drv->cfg->base_params->max_event_log_size;
1373         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1374         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1375         if (pieces->inst_evtlog_size)
1376                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1377         else
1378                 fw->inst_evtlog_size =
1379                         drv->cfg->base_params->max_event_log_size;
1380         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1381
1382         /*
1383          * figure out the offset of chain noise reset and gain commands
1384          * base on the size of standard phy calibration commands table size
1385          */
1386         if (fw->ucode_capa.standard_phy_calibration_size >
1387             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1388                 fw->ucode_capa.standard_phy_calibration_size =
1389                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1390
1391         /* We have our copies now, allow OS release its copies */
1392         release_firmware(ucode_raw);
1393
1394         mutex_lock(&iwlwifi_opmode_table_mtx);
1395         if (fw->mvm_fw)
1396                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1397         else
1398                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1399
1400         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1401                  drv->fw.fw_version, op->name);
1402
1403         /* add this device to the list of devices using this op_mode */
1404         list_add_tail(&drv->list, &op->drv);
1405
1406         if (op->ops) {
1407                 drv->op_mode = _iwl_op_mode_start(drv, op);
1408
1409                 if (!drv->op_mode) {
1410                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1411                         goto out_unbind;
1412                 }
1413         } else {
1414                 load_module = true;
1415         }
1416         mutex_unlock(&iwlwifi_opmode_table_mtx);
1417
1418         /*
1419          * Complete the firmware request last so that
1420          * a driver unbind (stop) doesn't run while we
1421          * are doing the start() above.
1422          */
1423         complete(&drv->request_firmware_complete);
1424
1425         /*
1426          * Load the module last so we don't block anything
1427          * else from proceeding if the module fails to load
1428          * or hangs loading.
1429          */
1430         if (load_module) {
1431                 err = request_module("%s", op->name);
1432 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1433                 if (err)
1434                         IWL_ERR(drv,
1435                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1436                                 op->name, err);
1437 #endif
1438         }
1439         kfree(pieces);
1440         return;
1441
1442  try_again:
1443         /* try next, if any */
1444         release_firmware(ucode_raw);
1445         if (iwl_request_firmware(drv, false))
1446                 goto out_unbind;
1447         kfree(pieces);
1448         return;
1449
1450  out_free_fw:
1451         IWL_ERR(drv, "failed to allocate pci memory\n");
1452         iwl_dealloc_ucode(drv);
1453         release_firmware(ucode_raw);
1454  out_unbind:
1455         kfree(pieces);
1456         complete(&drv->request_firmware_complete);
1457         device_release_driver(drv->trans->dev);
1458 }
1459
1460 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1461                               const struct iwl_cfg *cfg)
1462 {
1463         struct iwl_drv *drv;
1464         int ret;
1465
1466         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1467         if (!drv) {
1468                 ret = -ENOMEM;
1469                 goto err;
1470         }
1471
1472         drv->trans = trans;
1473         drv->dev = trans->dev;
1474         drv->cfg = cfg;
1475
1476         init_completion(&drv->request_firmware_complete);
1477         INIT_LIST_HEAD(&drv->list);
1478
1479 #ifdef CONFIG_IWLWIFI_DEBUGFS
1480         /* Create the device debugfs entries. */
1481         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1482                                             iwl_dbgfs_root);
1483
1484         if (!drv->dbgfs_drv) {
1485                 IWL_ERR(drv, "failed to create debugfs directory\n");
1486                 ret = -ENOMEM;
1487                 goto err_free_drv;
1488         }
1489
1490         /* Create transport layer debugfs dir */
1491         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1492
1493         if (!drv->trans->dbgfs_dir) {
1494                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1495                 ret = -ENOMEM;
1496                 goto err_free_dbgfs;
1497         }
1498 #endif
1499
1500         ret = iwl_request_firmware(drv, true);
1501         if (ret) {
1502                 IWL_ERR(trans, "Couldn't request the fw\n");
1503                 goto err_fw;
1504         }
1505
1506         return drv;
1507
1508 err_fw:
1509 #ifdef CONFIG_IWLWIFI_DEBUGFS
1510 err_free_dbgfs:
1511         debugfs_remove_recursive(drv->dbgfs_drv);
1512 err_free_drv:
1513 #endif
1514         kfree(drv);
1515 err:
1516         return ERR_PTR(ret);
1517 }
1518
1519 void iwl_drv_stop(struct iwl_drv *drv)
1520 {
1521         wait_for_completion(&drv->request_firmware_complete);
1522
1523         _iwl_op_mode_stop(drv);
1524
1525         iwl_dealloc_ucode(drv);
1526
1527         mutex_lock(&iwlwifi_opmode_table_mtx);
1528         /*
1529          * List is empty (this item wasn't added)
1530          * when firmware loading failed -- in that
1531          * case we can't remove it from any list.
1532          */
1533         if (!list_empty(&drv->list))
1534                 list_del(&drv->list);
1535         mutex_unlock(&iwlwifi_opmode_table_mtx);
1536
1537 #ifdef CONFIG_IWLWIFI_DEBUGFS
1538         debugfs_remove_recursive(drv->dbgfs_drv);
1539 #endif
1540
1541         kfree(drv);
1542 }
1543
1544
1545 /* shared module parameters */
1546 struct iwl_mod_params iwlwifi_mod_params = {
1547         .restart_fw = true,
1548         .bt_coex_active = true,
1549         .power_level = IWL_POWER_INDEX_1,
1550         .d0i3_disable = true,
1551         .d0i3_entry_delay = 1000,
1552 #ifndef CONFIG_IWLWIFI_UAPSD
1553         .uapsd_disable = true,
1554 #endif /* CONFIG_IWLWIFI_UAPSD */
1555         /* the rest are 0 by default */
1556 };
1557 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1558
1559 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1560 {
1561         int i;
1562         struct iwl_drv *drv;
1563         struct iwlwifi_opmode_table *op;
1564
1565         mutex_lock(&iwlwifi_opmode_table_mtx);
1566         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1567                 op = &iwlwifi_opmode_table[i];
1568                 if (strcmp(op->name, name))
1569                         continue;
1570                 op->ops = ops;
1571                 /* TODO: need to handle exceptional case */
1572                 list_for_each_entry(drv, &op->drv, list)
1573                         drv->op_mode = _iwl_op_mode_start(drv, op);
1574
1575                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1576                 return 0;
1577         }
1578         mutex_unlock(&iwlwifi_opmode_table_mtx);
1579         return -EIO;
1580 }
1581 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1582
1583 void iwl_opmode_deregister(const char *name)
1584 {
1585         int i;
1586         struct iwl_drv *drv;
1587
1588         mutex_lock(&iwlwifi_opmode_table_mtx);
1589         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1590                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1591                         continue;
1592                 iwlwifi_opmode_table[i].ops = NULL;
1593
1594                 /* call the stop routine for all devices */
1595                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1596                         _iwl_op_mode_stop(drv);
1597
1598                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1599                 return;
1600         }
1601         mutex_unlock(&iwlwifi_opmode_table_mtx);
1602 }
1603 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1604
1605 static int __init iwl_drv_init(void)
1606 {
1607         int i;
1608
1609         mutex_init(&iwlwifi_opmode_table_mtx);
1610
1611         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1612                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1613
1614         pr_info(DRV_DESCRIPTION "\n");
1615         pr_info(DRV_COPYRIGHT "\n");
1616
1617 #ifdef CONFIG_IWLWIFI_DEBUGFS
1618         /* Create the root of iwlwifi debugfs subsystem. */
1619         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1620
1621         if (!iwl_dbgfs_root)
1622                 return -EFAULT;
1623 #endif
1624
1625         return iwl_pci_register_driver();
1626 }
1627 module_init(iwl_drv_init);
1628
1629 static void __exit iwl_drv_exit(void)
1630 {
1631         iwl_pci_unregister_driver();
1632
1633 #ifdef CONFIG_IWLWIFI_DEBUGFS
1634         debugfs_remove_recursive(iwl_dbgfs_root);
1635 #endif
1636 }
1637 module_exit(iwl_drv_exit);
1638
1639 #ifdef CONFIG_IWLWIFI_DEBUG
1640 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1641                    S_IRUGO | S_IWUSR);
1642 MODULE_PARM_DESC(debug, "debug output mask");
1643 #endif
1644
1645 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1646 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1647 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1648 MODULE_PARM_DESC(11n_disable,
1649         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1650 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1651                    int, S_IRUGO);
1652 MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)");
1653 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1654 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1655
1656 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1657                    int, S_IRUGO);
1658 MODULE_PARM_DESC(antenna_coupling,
1659                  "specify antenna coupling in dB (default: 0 dB)");
1660
1661 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1662 MODULE_PARM_DESC(nvm_file, "NVM file name");
1663
1664 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1665                    bool, S_IRUGO);
1666 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1667
1668 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1669                    bool, S_IRUGO);
1670 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1671
1672 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1673                    bool, S_IRUGO | S_IWUSR);
1674 #ifdef CONFIG_IWLWIFI_UAPSD
1675 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
1676 #else
1677 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: Y)");
1678 #endif
1679
1680 /*
1681  * set bt_coex_active to true, uCode will do kill/defer
1682  * every time the priority line is asserted (BT is sending signals on the
1683  * priority line in the PCIx).
1684  * set bt_coex_active to false, uCode will ignore the BT activity and
1685  * perform the normal operation
1686  *
1687  * User might experience transmit issue on some platform due to WiFi/BT
1688  * co-exist problem. The possible behaviors are:
1689  *   Able to scan and finding all the available AP
1690  *   Not able to associate with any AP
1691  * On those platforms, WiFi communication can be restored by set
1692  * "bt_coex_active" module parameter to "false"
1693  *
1694  * default: bt_coex_active = true (BT_COEX_ENABLE)
1695  */
1696 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1697                 bool, S_IRUGO);
1698 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1699
1700 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1701 MODULE_PARM_DESC(led_mode, "0=system default, "
1702                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1703
1704 module_param_named(power_save, iwlwifi_mod_params.power_save,
1705                 bool, S_IRUGO);
1706 MODULE_PARM_DESC(power_save,
1707                  "enable WiFi power management (default: disable)");
1708
1709 module_param_named(power_level, iwlwifi_mod_params.power_level,
1710                 int, S_IRUGO);
1711 MODULE_PARM_DESC(power_level,
1712                  "default power save level (range from 1 - 5, default: 1)");
1713
1714 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1715 MODULE_PARM_DESC(fw_monitor,
1716                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1717
1718 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1719                    uint, S_IRUGO);
1720 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");