drivers/net/wireless/intel/iwlwifi/iwl-drv.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  *  * Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *  * Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in
  48  *    the documentation and/or other materials provided with the
  49  *    distribution.
  50  *  * Neither the name Intel Corporation nor the names of its
  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/completion.h>
  68 #include <linux/dma-mapping.h>
  69 #include <linux/firmware.h>
  70 #include <linux/module.h>
  71 #include <linux/vmalloc.h>
  72
  73 #include "iwl-drv.h"
  74 #include "iwl-csr.h"
  75 #include "iwl-debug.h"
  76 #include "iwl-trans.h"
  77 #include "iwl-op-mode.h"
  78 #include "iwl-agn-hw.h"
  79 #include "fw/img.h"
  80 #include "iwl-config.h"
  81 #include "iwl-modparams.h"
  82
  83 /******************************************************************************
  84  *
  85  * module boiler plate
  86  *
  87  ******************************************************************************/
  88
  89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  92 MODULE_LICENSE("GPL");
  93
  94 #ifdef CONFIG_IWLWIFI_DEBUGFS
  95 static struct dentry *iwl_dbgfs_root;
  96 #endif
  97
  98 /**
  99  * struct iwl_drv - drv common data
 100  * @list: list of drv structures using this opmode
 101  * @fw: the iwl_fw structure
 102  * @op_mode: the running op_mode
 103  * @trans: transport layer
 104  * @dev: for debug prints only
 105  * @fw_index: firmware revision to try loading
 106  * @firmware_name: composite filename of ucode file to load
 107  * @request_firmware_complete: the firmware has been obtained from user space
 108  */
 109 struct iwl_drv {
 110         struct list_head list;
 111         struct iwl_fw fw;
 112
 113         struct iwl_op_mode *op_mode;
 114         struct iwl_trans *trans;
 115         struct device *dev;
 116
 117         int fw_index;                   /* firmware we're trying to load */
 118         char firmware_name[64];         /* name of firmware file to load */
 119
 120         struct completion request_firmware_complete;
 121
 122 #ifdef CONFIG_IWLWIFI_DEBUGFS
 123         struct dentry *dbgfs_drv;
 124         struct dentry *dbgfs_trans;
 125         struct dentry *dbgfs_op_mode;
 126 #endif
 127 };
 128
 129 enum {
 130         DVM_OP_MODE,
 131         MVM_OP_MODE,
 132 };
 133
 134 /* Protects the table contents, i.e. the ops pointer & drv list */
 135 static struct mutex iwlwifi_opmode_table_mtx;
 136 static struct iwlwifi_opmode_table {
 137         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 138         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 139         struct list_head drv;           /* list of devices using this op_mode */
 140 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 141         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 142         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 143 };
 144
 145 #define IWL_DEFAULT_SCAN_CHANNELS 40
 146
 147 /*
 148  * struct fw_sec: Just for the image parsing process.
 149  * For the fw storage we are using struct fw_desc.
 150  */
 151 struct fw_sec {
 152         const void *data;               /* the sec data */
 153         size_t size;                    /* section size */
 154         u32 offset;                     /* offset of writing in the device */
 155 };
 156
 157 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 158 {
 159         vfree(desc->data);
 160         desc->data = NULL;
 161         desc->len = 0;
 162 }
 163
 164 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 165 {
 166         int i;
 167         for (i = 0; i < img->num_sec; i++)
 168                 iwl_free_fw_desc(drv, &img->sec[i]);
 169         kfree(img->sec);
 170 }
 171
 172 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 173 {
 174         int i;
 175
 176         kfree(drv->fw.dbg_dest_tlv);
 177         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
 178                 kfree(drv->fw.dbg_conf_tlv[i]);
 179         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
 180                 kfree(drv->fw.dbg_trigger_tlv[i]);
 181         kfree(drv->fw.dbg_mem_tlv);
 182
 183         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 184                 iwl_free_fw_img(drv, drv->fw.img + i);
 185 }
 186
 187 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 188                              struct fw_sec *sec)
 189 {
 190         void *data;
 191
 192         desc->data = NULL;
 193
 194         if (!sec || !sec->size)
 195                 return -EINVAL;
 196
 197         data = vmalloc(sec->size);
 198         if (!data)
 199                 return -ENOMEM;
 200
 201         desc->len = sec->size;
 202         desc->offset = sec->offset;
 203         memcpy(data, sec->data, desc->len);
 204         desc->data = data;
 205
 206         return 0;
 207 }
 208
 209 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 210                                 void *context);
 211
 212 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 213 {
 214         const struct iwl_cfg *cfg = drv->trans->cfg;
 215         char tag[8];
 216         const char *fw_pre_name;
 217
 218         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 219             (CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_B_STEP ||
 220              CSR_HW_REV_STEP(drv->trans->hw_rev) == SILICON_C_STEP))
 221                 fw_pre_name = cfg->fw_name_pre_b_or_c_step;
 222         else if (drv->trans->cfg->integrated &&
 223                  CSR_HW_RFID_STEP(drv->trans->hw_rf_id) == SILICON_B_STEP &&
 224                  cfg->fw_name_pre_rf_next_step)
 225                 fw_pre_name = cfg->fw_name_pre_rf_next_step;
 226         else
 227                 fw_pre_name = cfg->fw_name_pre;
 228
 229         if (first) {
 230                 drv->fw_index = cfg->ucode_api_max;
 231                 sprintf(tag, "%d", drv->fw_index);
 232         } else {
 233                 drv->fw_index--;
 234                 sprintf(tag, "%d", drv->fw_index);
 235         }
 236
 237         if (drv->fw_index < cfg->ucode_api_min) {
 238                 IWL_ERR(drv, "no suitable firmware found!\n");
 239
 240                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 241                         IWL_ERR(drv, "%s%d is required\n", fw_pre_name,
 242                                 cfg->ucode_api_max);
 243                 } else {
 244                         IWL_ERR(drv, "minimum version required: %s%d\n",
 245                                 fw_pre_name,
 246                                 cfg->ucode_api_min);
 247                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 248                                 fw_pre_name,
 249                                 cfg->ucode_api_max);
 250                 }
 251
 252                 IWL_ERR(drv,
 253                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 254                 return -ENOENT;
 255         }
 256
 257         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 258                  fw_pre_name, tag);
 259
 260         IWL_DEBUG_INFO(drv, "attempting to load firmware '%s'\n",
 261                        drv->firmware_name);
 262
 263         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 264                                        drv->trans->dev,
 265                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 266 }
 267
 268 struct fw_img_parsing {
 269         struct fw_sec *sec;
 270         int sec_counter;
 271 };
 272
 273 /*
 274  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 275  */
 276 struct fw_sec_parsing {
 277         __le32 offset;
 278         const u8 data[];
 279 } __packed;
 280
 281 /**
 282  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 283  *
 284  * @ucode_type: the uCode to which the following default calib relates.
 285  * @calib: default calibrations.
 286  */
 287 struct iwl_tlv_calib_data {
 288         __le32 ucode_type;
 289         struct iwl_tlv_calib_ctrl calib;
 290 } __packed;
 291
 292 struct iwl_firmware_pieces {
 293         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 294
 295         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 296         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 297
 298         /* FW debug data parsed for driver usage */
 299         bool dbg_dest_tlv_init;
 300         u8 *dbg_dest_ver;
 301         union {
 302                 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 303                 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
 304         };
 305         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 306         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 307         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 308         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 309         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 310         size_t n_dbg_mem_tlv;
 311 };
 312
 313 /*
 314  * These functions are just to extract uCode section data from the pieces
 315  * structure.
 316  */
 317 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 318                               enum iwl_ucode_type type,
 319                               int  sec)
 320 {
 321         return &pieces->img[type].sec[sec];
 322 }
 323
 324 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 325                            enum iwl_ucode_type type,
 326                            int sec)
 327 {
 328         struct fw_img_parsing *img = &pieces->img[type];
 329         struct fw_sec *sec_memory;
 330         int size = sec + 1;
 331         size_t alloc_size = sizeof(*img->sec) * size;
 332
 333         if (img->sec && img->sec_counter >= size)
 334                 return;
 335
 336         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 337         if (!sec_memory)
 338                 return;
 339
 340         img->sec = sec_memory;
 341         img->sec_counter = size;
 342 }
 343
 344 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 345                          enum iwl_ucode_type type,
 346                          int sec,
 347                          const void *data)
 348 {
 349         alloc_sec_data(pieces, type, sec);
 350
 351         pieces->img[type].sec[sec].data = data;
 352 }
 353
 354 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 355                          enum iwl_ucode_type type,
 356                          int sec,
 357                          size_t size)
 358 {
 359         alloc_sec_data(pieces, type, sec);
 360
 361         pieces->img[type].sec[sec].size = size;
 362 }
 363
 364 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 365                            enum iwl_ucode_type type,
 366                            int sec)
 367 {
 368         return pieces->img[type].sec[sec].size;
 369 }
 370
 371 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 372                            enum iwl_ucode_type type,
 373                            int sec,
 374                            u32 offset)
 375 {
 376         alloc_sec_data(pieces, type, sec);
 377
 378         pieces->img[type].sec[sec].offset = offset;
 379 }
 380
 381 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 382 {
 383         int i, j;
 384         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 385         struct iwl_fw_cipher_scheme *fwcs;
 386
 387         if (len < sizeof(*l) ||
 388             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 389                 return -EINVAL;
 390
 391         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 392                 fwcs = &l->cs[j];
 393
 394                 /* we skip schemes with zero cipher suite selector */
 395                 if (!fwcs->cipher)
 396                         continue;
 397
 398                 fw->cs[j++] = *fwcs;
 399         }
 400
 401         return 0;
 402 }
 403
 404 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 405                                  const u32 len)
 406 {
 407         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 408         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 409
 410         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 411         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 412         capa->max_ap_cache_per_scan =
 413                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 414         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 415         capa->max_scan_reporting_threshold =
 416                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 417         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 418         capa->max_significant_change_aps =
 419                 le32_to_cpu(fw_capa->max_significant_change_aps);
 420         capa->max_bssid_history_entries =
 421                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 422         capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
 423         capa->max_number_epno_networks =
 424                 le32_to_cpu(fw_capa->max_number_epno_networks);
 425         capa->max_number_epno_networks_by_ssid =
 426                 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
 427         capa->max_number_of_white_listed_ssid =
 428                 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
 429         capa->max_number_of_black_listed_ssid =
 430                 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
 431 }
 432
 433 /*
 434  * Gets uCode section from tlv.
 435  */
 436 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 437                                const void *data, enum iwl_ucode_type type,
 438                                int size)
 439 {
 440         struct fw_img_parsing *img;
 441         struct fw_sec *sec;
 442         struct fw_sec_parsing *sec_parse;
 443         size_t alloc_size;
 444
 445         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 446                 return -1;
 447
 448         sec_parse = (struct fw_sec_parsing *)data;
 449
 450         img = &pieces->img[type];
 451
 452         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 453         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 454         if (!sec)
 455                 return -ENOMEM;
 456         img->sec = sec;
 457
 458         sec = &img->sec[img->sec_counter];
 459
 460         sec->offset = le32_to_cpu(sec_parse->offset);
 461         sec->data = sec_parse->data;
 462         sec->size = size - sizeof(sec_parse->offset);
 463
 464         ++img->sec_counter;
 465
 466         return 0;
 467 }
 468
 469 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 470 {
 471         struct iwl_tlv_calib_data *def_calib =
 472                                         (struct iwl_tlv_calib_data *)data;
 473         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 474         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 475                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 476                         ucode_type);
 477                 return -EINVAL;
 478         }
 479         drv->fw.default_calib[ucode_type].flow_trigger =
 480                 def_calib->calib.flow_trigger;
 481         drv->fw.default_calib[ucode_type].event_trigger =
 482                 def_calib->calib.event_trigger;
 483
 484         return 0;
 485 }
 486
 487 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 488                                     struct iwl_ucode_capabilities *capa)
 489 {
 490         const struct iwl_ucode_api *ucode_api = (void *)data;
 491         u32 api_index = le32_to_cpu(ucode_api->api_index);
 492         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 493         int i;
 494
 495         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 496                 IWL_WARN(drv,
 497                          "api flags index %d larger than supported by driver\n",
 498                          api_index);
 499                 return;
 500         }
 501
 502         for (i = 0; i < 32; i++) {
 503                 if (api_flags & BIT(i))
 504                         __set_bit(i + 32 * api_index, capa->_api);
 505         }
 506 }
 507
 508 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 509                                        struct iwl_ucode_capabilities *capa)
 510 {
 511         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 512         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 513         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 514         int i;
 515
 516         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 517                 IWL_WARN(drv,
 518                          "capa flags index %d larger than supported by driver\n",
 519                          api_index);
 520                 return;
 521         }
 522
 523         for (i = 0; i < 32; i++) {
 524                 if (api_flags & BIT(i))
 525                         __set_bit(i + 32 * api_index, capa->_capa);
 526         }
 527 }
 528
 529 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 530                                     const struct firmware *ucode_raw,
 531                                     struct iwl_firmware_pieces *pieces)
 532 {
 533         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 534         u32 api_ver, hdr_size, build;
 535         char buildstr[25];
 536         const u8 *src;
 537
 538         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 539         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 540
 541         switch (api_ver) {
 542         default:
 543                 hdr_size = 28;
 544                 if (ucode_raw->size < hdr_size) {
 545                         IWL_ERR(drv, "File size too small!\n");
 546                         return -EINVAL;
 547                 }
 548                 build = le32_to_cpu(ucode->u.v2.build);
 549                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 550                              le32_to_cpu(ucode->u.v2.inst_size));
 551                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 552                              le32_to_cpu(ucode->u.v2.data_size));
 553                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 554                              le32_to_cpu(ucode->u.v2.init_size));
 555                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 556                              le32_to_cpu(ucode->u.v2.init_data_size));
 557                 src = ucode->u.v2.data;
 558                 break;
 559         case 0:
 560         case 1:
 561         case 2:
 562                 hdr_size = 24;
 563                 if (ucode_raw->size < hdr_size) {
 564                         IWL_ERR(drv, "File size too small!\n");
 565                         return -EINVAL;
 566                 }
 567                 build = 0;
 568                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 569                              le32_to_cpu(ucode->u.v1.inst_size));
 570                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 571                              le32_to_cpu(ucode->u.v1.data_size));
 572                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 573                              le32_to_cpu(ucode->u.v1.init_size));
 574                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 575                              le32_to_cpu(ucode->u.v1.init_data_size));
 576                 src = ucode->u.v1.data;
 577                 break;
 578         }
 579
 580         if (build)
 581                 sprintf(buildstr, " build %u", build);
 582         else
 583                 buildstr[0] = '\0';
 584
 585         snprintf(drv->fw.fw_version,
 586                  sizeof(drv->fw.fw_version),
 587                  "%u.%u.%u.%u%s",
 588                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 589                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 590                  IWL_UCODE_API(drv->fw.ucode_ver),
 591                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 592                  buildstr);
 593
 594         /* Verify size of file vs. image size info in file's header */
 595
 596         if (ucode_raw->size != hdr_size +
 597             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 598             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 599             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 600             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 601
 602                 IWL_ERR(drv,
 603                         "uCode file size %d does not match expected size\n",
 604                         (int)ucode_raw->size);
 605                 return -EINVAL;
 606         }
 607
 608
 609         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 610         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 611         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 612                        IWLAGN_RTC_INST_LOWER_BOUND);
 613         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 614         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 615         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 616                        IWLAGN_RTC_DATA_LOWER_BOUND);
 617         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 618         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 619         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 620                        IWLAGN_RTC_INST_LOWER_BOUND);
 621         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 622         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 623         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 624                        IWLAGN_RTC_DATA_LOWER_BOUND);
 625         return 0;
 626 }
 627
 628 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 629                                 const struct firmware *ucode_raw,
 630                                 struct iwl_firmware_pieces *pieces,
 631                                 struct iwl_ucode_capabilities *capa,
 632                                 bool *usniffer_images)
 633 {
 634         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 635         struct iwl_ucode_tlv *tlv;
 636         size_t len = ucode_raw->size;
 637         const u8 *data;
 638         u32 tlv_len;
 639         u32 usniffer_img;
 640         enum iwl_ucode_tlv_type tlv_type;
 641         const u8 *tlv_data;
 642         char buildstr[25];
 643         u32 build, paging_mem_size;
 644         int num_of_cpus;
 645         bool usniffer_req = false;
 646         bool gscan_capa = false;
 647
 648         if (len < sizeof(*ucode)) {
 649                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 650                 return -EINVAL;
 651         }
 652
 653         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 654                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 655                         le32_to_cpu(ucode->magic));
 656                 return -EINVAL;
 657         }
 658
 659         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 660         memcpy(drv->fw.human_readable, ucode->human_readable,
 661                sizeof(drv->fw.human_readable));
 662         build = le32_to_cpu(ucode->build);
 663
 664         if (build)
 665                 sprintf(buildstr, " build %u", build);
 666         else
 667                 buildstr[0] = '\0';
 668
 669         snprintf(drv->fw.fw_version,
 670                  sizeof(drv->fw.fw_version),
 671                  "%u.%u.%u.%u%s",
 672                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 673                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 674                  IWL_UCODE_API(drv->fw.ucode_ver),
 675                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 676                  buildstr);
 677
 678         data = ucode->data;
 679
 680         len -= sizeof(*ucode);
 681
 682         while (len >= sizeof(*tlv)) {
 683                 len -= sizeof(*tlv);
 684                 tlv = (void *)data;
 685
 686                 tlv_len = le32_to_cpu(tlv->length);
 687                 tlv_type = le32_to_cpu(tlv->type);
 688                 tlv_data = tlv->data;
 689
 690                 if (len < tlv_len) {
 691                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 692                                 len, tlv_len);
 693                         return -EINVAL;
 694                 }
 695                 len -= ALIGN(tlv_len, 4);
 696                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 697
 698                 switch (tlv_type) {
 699                 case IWL_UCODE_TLV_INST:
 700                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 701                                      IWL_UCODE_SECTION_INST, tlv_data);
 702                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 703                                      IWL_UCODE_SECTION_INST, tlv_len);
 704                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 705                                        IWL_UCODE_SECTION_INST,
 706                                        IWLAGN_RTC_INST_LOWER_BOUND);
 707                         break;
 708                 case IWL_UCODE_TLV_DATA:
 709                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 710                                      IWL_UCODE_SECTION_DATA, tlv_data);
 711                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 712                                      IWL_UCODE_SECTION_DATA, tlv_len);
 713                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 714                                        IWL_UCODE_SECTION_DATA,
 715                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 716                         break;
 717                 case IWL_UCODE_TLV_INIT:
 718                         set_sec_data(pieces, IWL_UCODE_INIT,
 719                                      IWL_UCODE_SECTION_INST, tlv_data);
 720                         set_sec_size(pieces, IWL_UCODE_INIT,
 721                                      IWL_UCODE_SECTION_INST, tlv_len);
 722                         set_sec_offset(pieces, IWL_UCODE_INIT,
 723                                        IWL_UCODE_SECTION_INST,
 724                                        IWLAGN_RTC_INST_LOWER_BOUND);
 725                         break;
 726                 case IWL_UCODE_TLV_INIT_DATA:
 727                         set_sec_data(pieces, IWL_UCODE_INIT,
 728                                      IWL_UCODE_SECTION_DATA, tlv_data);
 729                         set_sec_size(pieces, IWL_UCODE_INIT,
 730                                      IWL_UCODE_SECTION_DATA, tlv_len);
 731                         set_sec_offset(pieces, IWL_UCODE_INIT,
 732                                        IWL_UCODE_SECTION_DATA,
 733                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 734                         break;
 735                 case IWL_UCODE_TLV_BOOT:
 736                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 737                         break;
 738                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 739                         if (tlv_len != sizeof(u32))
 740                                 goto invalid_tlv_len;
 741                         capa->max_probe_length =
 742                                         le32_to_cpup((__le32 *)tlv_data);
 743                         break;
 744                 case IWL_UCODE_TLV_PAN:
 745                         if (tlv_len)
 746                                 goto invalid_tlv_len;
 747                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 748                         break;
 749                 case IWL_UCODE_TLV_FLAGS:
 750                         /* must be at least one u32 */
 751                         if (tlv_len < sizeof(u32))
 752                                 goto invalid_tlv_len;
 753                         /* and a proper number of u32s */
 754                         if (tlv_len % sizeof(u32))
 755                                 goto invalid_tlv_len;
 756                         /*
 757                          * This driver only reads the first u32 as
 758                          * right now no more features are defined,
 759                          * if that changes then either the driver
 760                          * will not work with the new firmware, or
 761                          * it'll not take advantage of new features.
 762                          */
 763                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 764                         break;
 765                 case IWL_UCODE_TLV_API_CHANGES_SET:
 766                         if (tlv_len != sizeof(struct iwl_ucode_api))
 767                                 goto invalid_tlv_len;
 768                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
 769                         break;
 770                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 771                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 772                                 goto invalid_tlv_len;
 773                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
 774                         break;
 775                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 776                         if (tlv_len != sizeof(u32))
 777                                 goto invalid_tlv_len;
 778                         pieces->init_evtlog_ptr =
 779                                         le32_to_cpup((__le32 *)tlv_data);
 780                         break;
 781                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 782                         if (tlv_len != sizeof(u32))
 783                                 goto invalid_tlv_len;
 784                         pieces->init_evtlog_size =
 785                                         le32_to_cpup((__le32 *)tlv_data);
 786                         break;
 787                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 788                         if (tlv_len != sizeof(u32))
 789                                 goto invalid_tlv_len;
 790                         pieces->init_errlog_ptr =
 791                                         le32_to_cpup((__le32 *)tlv_data);
 792                         break;
 793                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 794                         if (tlv_len != sizeof(u32))
 795                                 goto invalid_tlv_len;
 796                         pieces->inst_evtlog_ptr =
 797                                         le32_to_cpup((__le32 *)tlv_data);
 798                         break;
 799                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 800                         if (tlv_len != sizeof(u32))
 801                                 goto invalid_tlv_len;
 802                         pieces->inst_evtlog_size =
 803                                         le32_to_cpup((__le32 *)tlv_data);
 804                         break;
 805                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 806                         if (tlv_len != sizeof(u32))
 807                                 goto invalid_tlv_len;
 808                         pieces->inst_errlog_ptr =
 809                                         le32_to_cpup((__le32 *)tlv_data);
 810                         break;
 811                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 812                         if (tlv_len)
 813                                 goto invalid_tlv_len;
 814                         drv->fw.enhance_sensitivity_table = true;
 815                         break;
 816                 case IWL_UCODE_TLV_WOWLAN_INST:
 817                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 818                                      IWL_UCODE_SECTION_INST, tlv_data);
 819                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 820                                      IWL_UCODE_SECTION_INST, tlv_len);
 821                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 822                                        IWL_UCODE_SECTION_INST,
 823                                        IWLAGN_RTC_INST_LOWER_BOUND);
 824                         break;
 825                 case IWL_UCODE_TLV_WOWLAN_DATA:
 826                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 827                                      IWL_UCODE_SECTION_DATA, tlv_data);
 828                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 829                                      IWL_UCODE_SECTION_DATA, tlv_len);
 830                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 831                                        IWL_UCODE_SECTION_DATA,
 832                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 833                         break;
 834                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 835                         if (tlv_len != sizeof(u32))
 836                                 goto invalid_tlv_len;
 837                         capa->standard_phy_calibration_size =
 838                                         le32_to_cpup((__le32 *)tlv_data);
 839                         break;
 840                 case IWL_UCODE_TLV_SEC_RT:
 841                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 842                                             tlv_len);
 843                         drv->fw.type = IWL_FW_MVM;
 844                         break;
 845                 case IWL_UCODE_TLV_SEC_INIT:
 846                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 847                                             tlv_len);
 848                         drv->fw.type = IWL_FW_MVM;
 849                         break;
 850                 case IWL_UCODE_TLV_SEC_WOWLAN:
 851                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 852                                             tlv_len);
 853                         drv->fw.type = IWL_FW_MVM;
 854                         break;
 855                 case IWL_UCODE_TLV_DEF_CALIB:
 856                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 857                                 goto invalid_tlv_len;
 858                         if (iwl_set_default_calib(drv, tlv_data))
 859                                 goto tlv_error;
 860                         break;
 861                 case IWL_UCODE_TLV_PHY_SKU:
 862                         if (tlv_len != sizeof(u32))
 863                                 goto invalid_tlv_len;
 864                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 865                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 866                                                 FW_PHY_CFG_TX_CHAIN) >>
 867                                                 FW_PHY_CFG_TX_CHAIN_POS;
 868                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 869                                                 FW_PHY_CFG_RX_CHAIN) >>
 870                                                 FW_PHY_CFG_RX_CHAIN_POS;
 871                         break;
 872                 case IWL_UCODE_TLV_SECURE_SEC_RT:
 873                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 874                                             tlv_len);
 875                         drv->fw.type = IWL_FW_MVM;
 876                         break;
 877                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 878                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 879                                             tlv_len);
 880                         drv->fw.type = IWL_FW_MVM;
 881                         break;
 882                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 883                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 884                                             tlv_len);
 885                         drv->fw.type = IWL_FW_MVM;
 886                         break;
 887                 case IWL_UCODE_TLV_NUM_OF_CPU:
 888                         if (tlv_len != sizeof(u32))
 889                                 goto invalid_tlv_len;
 890                         num_of_cpus =
 891                                 le32_to_cpup((__le32 *)tlv_data);
 892
 893                         if (num_of_cpus == 2) {
 894                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 895                                         true;
 896                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 897                                         true;
 898                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 899                                         true;
 900                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 901                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 902                                 return -EINVAL;
 903                         }
 904                         break;
 905                 case IWL_UCODE_TLV_CSCHEME:
 906                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 907                                 goto invalid_tlv_len;
 908                         break;
 909                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 910                         if (tlv_len != sizeof(u32))
 911                                 goto invalid_tlv_len;
 912                         capa->n_scan_channels =
 913                                 le32_to_cpup((__le32 *)tlv_data);
 914                         break;
 915                 case IWL_UCODE_TLV_FW_VERSION: {
 916                         __le32 *ptr = (void *)tlv_data;
 917                         u32 major, minor;
 918                         u8 local_comp;
 919
 920                         if (tlv_len != sizeof(u32) * 3)
 921                                 goto invalid_tlv_len;
 922
 923                         major = le32_to_cpup(ptr++);
 924                         minor = le32_to_cpup(ptr++);
 925                         local_comp = le32_to_cpup(ptr);
 926
 927                         if (major >= 35)
 928                                 snprintf(drv->fw.fw_version,
 929                                          sizeof(drv->fw.fw_version),
 930                                         "%u.%08x.%u", major, minor, local_comp);
 931                         else
 932                                 snprintf(drv->fw.fw_version,
 933                                          sizeof(drv->fw.fw_version),
 934                                         "%u.%u.%u", major, minor, local_comp);
 935                         break;
 936                         }
 937                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 938                         struct iwl_fw_dbg_dest_tlv *dest = NULL;
 939                         struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
 940                         u8 mon_mode;
 941
 942                         pieces->dbg_dest_ver = (u8 *)tlv_data;
 943                         if (*pieces->dbg_dest_ver == 1) {
 944                                 dest = (void *)tlv_data;
 945                         } else if (*pieces->dbg_dest_ver == 0) {
 946                                 dest_v1 = (void *)tlv_data;
 947                         } else {
 948                                 IWL_ERR(drv,
 949                                         "The version is %d, and it is invalid\n",
 950                                         *pieces->dbg_dest_ver);
 951                                 break;
 952                         }
 953
 954                         if (pieces->dbg_dest_tlv_init) {
 955                                 IWL_ERR(drv,
 956                                         "dbg destination ignored, already exists\n");
 957                                 break;
 958                         }
 959
 960                         pieces->dbg_dest_tlv_init = true;
 961
 962                         if (dest_v1) {
 963                                 pieces->dbg_dest_tlv_v1 = dest_v1;
 964                                 mon_mode = dest_v1->monitor_mode;
 965                         } else {
 966                                 pieces->dbg_dest_tlv = dest;
 967                                 mon_mode = dest->monitor_mode;
 968                         }
 969
 970                         IWL_INFO(drv, "Found debug destination: %s\n",
 971                                  get_fw_dbg_mode_string(mon_mode));
 972
 973                         drv->fw.dbg_dest_reg_num = (dest_v1) ?
 974                                 tlv_len -
 975                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
 976                                          reg_ops) :
 977                                 tlv_len -
 978                                 offsetof(struct iwl_fw_dbg_dest_tlv,
 979                                          reg_ops);
 980
 981                         drv->fw.dbg_dest_reg_num /=
 982                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 983
 984                         break;
 985                         }
 986                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 987                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 988
 989                         if (!pieces->dbg_dest_tlv_init) {
 990                                 IWL_ERR(drv,
 991                                         "Ignore dbg config %d - no destination configured\n",
 992                                         conf->id);
 993                                 break;
 994                         }
 995
 996                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 997                                 IWL_ERR(drv,
 998                                         "Skip unknown configuration: %d\n",
 999                                         conf->id);
1000                                 break;
1001                         }
1002
1003                         if (pieces->dbg_conf_tlv[conf->id]) {
1004                                 IWL_ERR(drv,
1005                                         "Ignore duplicate dbg config %d\n",
1006                                         conf->id);
1007                                 break;
1008                         }
1009
1010                         if (conf->usniffer)
1011                                 usniffer_req = true;
1012
1013                         IWL_INFO(drv, "Found debug configuration: %d\n",
1014                                  conf->id);
1015
1016                         pieces->dbg_conf_tlv[conf->id] = conf;
1017                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
1018                         break;
1019                         }
1020                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
1021                         struct iwl_fw_dbg_trigger_tlv *trigger =
1022                                 (void *)tlv_data;
1023                         u32 trigger_id = le32_to_cpu(trigger->id);
1024
1025                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
1026                                 IWL_ERR(drv,
1027                                         "Skip unknown trigger: %u\n",
1028                                         trigger->id);
1029                                 break;
1030                         }
1031
1032                         if (pieces->dbg_trigger_tlv[trigger_id]) {
1033                                 IWL_ERR(drv,
1034                                         "Ignore duplicate dbg trigger %u\n",
1035                                         trigger->id);
1036                                 break;
1037                         }
1038
1039                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
1040
1041                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
1042                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
1043                         break;
1044                         }
1045                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
1046                         *usniffer_images = true;
1047                         iwl_store_ucode_sec(pieces, tlv_data,
1048                                             IWL_UCODE_REGULAR_USNIFFER,
1049                                             tlv_len);
1050                         break;
1051                 case IWL_UCODE_TLV_PAGING:
1052                         if (tlv_len != sizeof(u32))
1053                                 goto invalid_tlv_len;
1054                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1055
1056                         IWL_DEBUG_FW(drv,
1057                                      "Paging: paging enabled (size = %u bytes)\n",
1058                                      paging_mem_size);
1059
1060                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1061                                 IWL_ERR(drv,
1062                                         "Paging: driver supports up to %lu bytes for paging image\n",
1063                                         MAX_PAGING_IMAGE_SIZE);
1064                                 return -EINVAL;
1065                         }
1066
1067                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1068                                 IWL_ERR(drv,
1069                                         "Paging: image isn't multiple %lu\n",
1070                                         FW_PAGING_SIZE);
1071                                 return -EINVAL;
1072                         }
1073
1074                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1075                                 paging_mem_size;
1076                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1077                         drv->fw.img[usniffer_img].paging_mem_size =
1078                                 paging_mem_size;
1079                         break;
1080                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1081                         /*
1082                          * Don't return an error in case of a shorter tlv_len
1083                          * to enable loading of FW that has an old format
1084                          * of GSCAN capabilities TLV.
1085                          */
1086                         if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1087                                 break;
1088
1089                         iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1090                         gscan_capa = true;
1091                         break;
1092                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1093                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1094                                 (void *)tlv_data;
1095                         u32 type;
1096                         size_t size;
1097                         struct iwl_fw_dbg_mem_seg_tlv *n;
1098
1099                         if (tlv_len != (sizeof(*dbg_mem)))
1100                                 goto invalid_tlv_len;
1101
1102                         type = le32_to_cpu(dbg_mem->data_type);
1103
1104                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1105                                        dbg_mem->data_type);
1106
1107                         switch (type & FW_DBG_MEM_TYPE_MASK) {
1108                         case FW_DBG_MEM_TYPE_REGULAR:
1109                         case FW_DBG_MEM_TYPE_PRPH:
1110                                 /* we know how to handle these */
1111                                 break;
1112                         default:
1113                                 IWL_ERR(drv,
1114                                         "Found debug memory segment with invalid type: 0x%x\n",
1115                                         type);
1116                                 return -EINVAL;
1117                         }
1118
1119                         size = sizeof(*pieces->dbg_mem_tlv) *
1120                                (pieces->n_dbg_mem_tlv + 1);
1121                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1122                         if (!n)
1123                                 return -ENOMEM;
1124                         pieces->dbg_mem_tlv = n;
1125                         pieces->dbg_mem_tlv[pieces->n_dbg_mem_tlv] = *dbg_mem;
1126                         pieces->n_dbg_mem_tlv++;
1127                         break;
1128                         }
1129                 default:
1130                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1131                         break;
1132                 }
1133         }
1134
1135         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1136             usniffer_req && !*usniffer_images) {
1137                 IWL_ERR(drv,
1138                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1139                 return -EINVAL;
1140         }
1141
1142         if (len) {
1143                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1144                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1145                 return -EINVAL;
1146         }
1147
1148         /*
1149          * If ucode advertises that it supports GSCAN but GSCAN
1150          * capabilities TLV is not present, or if it has an old format,
1151          * warn and continue without GSCAN.
1152          */
1153         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1154             !gscan_capa) {
1155                 IWL_DEBUG_INFO(drv,
1156                                "GSCAN is supported but capabilities TLV is unavailable\n");
1157                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1158                             capa->_capa);
1159         }
1160
1161         return 0;
1162
1163  invalid_tlv_len:
1164         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1165  tlv_error:
1166         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1167
1168         return -EINVAL;
1169 }
1170
1171 static int iwl_alloc_ucode(struct iwl_drv *drv,
1172                            struct iwl_firmware_pieces *pieces,
1173                            enum iwl_ucode_type type)
1174 {
1175         int i;
1176         struct fw_desc *sec;
1177
1178         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1179         if (!sec)
1180                 return -ENOMEM;
1181         drv->fw.img[type].sec = sec;
1182         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1183
1184         for (i = 0; i < pieces->img[type].sec_counter; i++)
1185                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1186                         return -ENOMEM;
1187
1188         return 0;
1189 }
1190
1191 static int validate_sec_sizes(struct iwl_drv *drv,
1192                               struct iwl_firmware_pieces *pieces,
1193                               const struct iwl_cfg *cfg)
1194 {
1195         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1196                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1197                              IWL_UCODE_SECTION_INST));
1198         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1199                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1200                              IWL_UCODE_SECTION_DATA));
1201         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1202                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1203         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1204                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1205
1206         /* Verify that uCode images will fit in card's SRAM. */
1207         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1208             cfg->max_inst_size) {
1209                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1210                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1211                                      IWL_UCODE_SECTION_INST));
1212                 return -1;
1213         }
1214
1215         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1216             cfg->max_data_size) {
1217                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1218                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1219                                      IWL_UCODE_SECTION_DATA));
1220                 return -1;
1221         }
1222
1223         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1224              cfg->max_inst_size) {
1225                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1226                         get_sec_size(pieces, IWL_UCODE_INIT,
1227                                      IWL_UCODE_SECTION_INST));
1228                 return -1;
1229         }
1230
1231         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1232             cfg->max_data_size) {
1233                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1234                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1235                                      IWL_UCODE_SECTION_DATA));
1236                 return -1;
1237         }
1238         return 0;
1239 }
1240
1241 static struct iwl_op_mode *
1242 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1243 {
1244         const struct iwl_op_mode_ops *ops = op->ops;
1245         struct dentry *dbgfs_dir = NULL;
1246         struct iwl_op_mode *op_mode = NULL;
1247
1248 #ifdef CONFIG_IWLWIFI_DEBUGFS
1249         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1250                                                 drv->dbgfs_drv);
1251         if (!drv->dbgfs_op_mode) {
1252                 IWL_ERR(drv,
1253                         "failed to create opmode debugfs directory\n");
1254                 return op_mode;
1255         }
1256         dbgfs_dir = drv->dbgfs_op_mode;
1257 #endif
1258
1259         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1260
1261 #ifdef CONFIG_IWLWIFI_DEBUGFS
1262         if (!op_mode) {
1263                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1264                 drv->dbgfs_op_mode = NULL;
1265         }
1266 #endif
1267
1268         return op_mode;
1269 }
1270
1271 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1272 {
1273         /* op_mode can be NULL if its start failed */
1274         if (drv->op_mode) {
1275                 iwl_op_mode_stop(drv->op_mode);
1276                 drv->op_mode = NULL;
1277
1278 #ifdef CONFIG_IWLWIFI_DEBUGFS
1279                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1280                 drv->dbgfs_op_mode = NULL;
1281 #endif
1282         }
1283 }
1284
1285 /**
1286  * iwl_req_fw_callback - callback when firmware was loaded
1287  *
1288  * If loaded successfully, copies the firmware into buffers
1289  * for the card to fetch (via DMA).
1290  */
1291 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1292 {
1293         struct iwl_drv *drv = context;
1294         struct iwl_fw *fw = &drv->fw;
1295         struct iwl_ucode_header *ucode;
1296         struct iwlwifi_opmode_table *op;
1297         int err;
1298         struct iwl_firmware_pieces *pieces;
1299         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1300         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1301         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1302         u32 api_ver;
1303         int i;
1304         bool load_module = false;
1305         bool usniffer_images = false;
1306
1307         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1308         fw->ucode_capa.standard_phy_calibration_size =
1309                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1310         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1311
1312         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1313         if (!pieces)
1314                 goto out_free_fw;
1315
1316         if (!ucode_raw)
1317                 goto try_again;
1318
1319         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1320                        drv->firmware_name, ucode_raw->size);
1321
1322         /* Make sure that we got at least the API version number */
1323         if (ucode_raw->size < 4) {
1324                 IWL_ERR(drv, "File size way too small!\n");
1325                 goto try_again;
1326         }
1327
1328         /* Data from ucode file:  header followed by uCode images */
1329         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1330
1331         if (ucode->ver)
1332                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1333         else
1334                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1335                                              &fw->ucode_capa, &usniffer_images);
1336
1337         if (err)
1338                 goto try_again;
1339
1340         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1341                 api_ver = drv->fw.ucode_ver;
1342         else
1343                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1344
1345         /*
1346          * api_ver should match the api version forming part of the
1347          * firmware filename ... but we don't check for that and only rely
1348          * on the API version read from firmware header from here on forward
1349          */
1350         if (api_ver < api_min || api_ver > api_max) {
1351                 IWL_ERR(drv,
1352                         "Driver unable to support your firmware API. "
1353                         "Driver supports v%u, firmware is v%u.\n",
1354                         api_max, api_ver);
1355                 goto try_again;
1356         }
1357
1358         /*
1359          * In mvm uCode there is no difference between data and instructions
1360          * sections.
1361          */
1362         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1363                                                          drv->trans->cfg))
1364                 goto try_again;
1365
1366         /* Allocate ucode buffers for card's bus-master loading ... */
1367
1368         /* Runtime instructions and 2 copies of data:
1369          * 1) unmodified from disk
1370          * 2) backup cache for save/restore during power-downs
1371          */
1372         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1373                 if (iwl_alloc_ucode(drv, pieces, i))
1374                         goto out_free_fw;
1375
1376         if (pieces->dbg_dest_tlv_init) {
1377                 size_t dbg_dest_size = sizeof(*drv->fw.dbg_dest_tlv) +
1378                         sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]) *
1379                         drv->fw.dbg_dest_reg_num;
1380
1381                 drv->fw.dbg_dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1382
1383                 if (!drv->fw.dbg_dest_tlv)
1384                         goto out_free_fw;
1385
1386                 if (*pieces->dbg_dest_ver == 0) {
1387                         memcpy(drv->fw.dbg_dest_tlv, pieces->dbg_dest_tlv_v1,
1388                                dbg_dest_size);
1389                 } else {
1390                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1391                                 drv->fw.dbg_dest_tlv;
1392
1393                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1394                         dest_tlv->monitor_mode =
1395                                 pieces->dbg_dest_tlv->monitor_mode;
1396                         dest_tlv->size_power =
1397                                 pieces->dbg_dest_tlv->size_power;
1398                         dest_tlv->wrap_count =
1399                                 pieces->dbg_dest_tlv->wrap_count;
1400                         dest_tlv->write_ptr_reg =
1401                                 pieces->dbg_dest_tlv->write_ptr_reg;
1402                         dest_tlv->base_shift =
1403                                 pieces->dbg_dest_tlv->base_shift;
1404                         memcpy(dest_tlv->reg_ops,
1405                                pieces->dbg_dest_tlv->reg_ops,
1406                                sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]) *
1407                                drv->fw.dbg_dest_reg_num);
1408
1409                         /* In version 1 of the destination tlv, which is
1410                          * relevant for internal buffer exclusively,
1411                          * the base address is part of given with the length
1412                          * of the buffer, and the size shift is give instead of
1413                          * end shift. We now store these values in base_reg,
1414                          * and end shift, and when dumping the data we'll
1415                          * manipulate it for extracting both the length and
1416                          * base address */
1417                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1418                         dest_tlv->end_shift =
1419                                 pieces->dbg_dest_tlv->size_shift;
1420                 }
1421         }
1422
1423         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1424                 if (pieces->dbg_conf_tlv[i]) {
1425                         drv->fw.dbg_conf_tlv_len[i] =
1426                                 pieces->dbg_conf_tlv_len[i];
1427                         drv->fw.dbg_conf_tlv[i] =
1428                                 kmemdup(pieces->dbg_conf_tlv[i],
1429                                         drv->fw.dbg_conf_tlv_len[i],
1430                                         GFP_KERNEL);
1431                         if (!drv->fw.dbg_conf_tlv[i])
1432                                 goto out_free_fw;
1433                 }
1434         }
1435
1436         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1437
1438         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1439                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1440         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1441         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1442                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1443         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1444                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1445         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1446                 sizeof(struct iwl_fw_dbg_trigger_stats);
1447         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1448                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1449         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1450                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1451         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1452                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1453         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1454                 sizeof(struct iwl_fw_dbg_trigger_ba);
1455         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1456                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1457
1458         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1459                 if (pieces->dbg_trigger_tlv[i]) {
1460                         /*
1461                          * If the trigger isn't long enough, WARN and exit.
1462                          * Someone is trying to debug something and he won't
1463                          * be able to catch the bug he is trying to chase.
1464                          * We'd better be noisy to be sure he knows what's
1465                          * going on.
1466                          */
1467                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1468                                     (trigger_tlv_sz[i] +
1469                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1470                                 goto out_free_fw;
1471                         drv->fw.dbg_trigger_tlv_len[i] =
1472                                 pieces->dbg_trigger_tlv_len[i];
1473                         drv->fw.dbg_trigger_tlv[i] =
1474                                 kmemdup(pieces->dbg_trigger_tlv[i],
1475                                         drv->fw.dbg_trigger_tlv_len[i],
1476                                         GFP_KERNEL);
1477                         if (!drv->fw.dbg_trigger_tlv[i])
1478                                 goto out_free_fw;
1479                 }
1480         }
1481
1482         /* Now that we can no longer fail, copy information */
1483
1484         drv->fw.dbg_mem_tlv = pieces->dbg_mem_tlv;
1485         pieces->dbg_mem_tlv = NULL;
1486         drv->fw.n_dbg_mem_tlv = pieces->n_dbg_mem_tlv;
1487
1488         /*
1489          * The (size - 16) / 12 formula is based on the information recorded
1490          * for each event, which is of mode 1 (including timestamp) for all
1491          * new microcodes that include this information.
1492          */
1493         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1494         if (pieces->init_evtlog_size)
1495                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1496         else
1497                 fw->init_evtlog_size =
1498                         drv->trans->cfg->base_params->max_event_log_size;
1499         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1500         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1501         if (pieces->inst_evtlog_size)
1502                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1503         else
1504                 fw->inst_evtlog_size =
1505                         drv->trans->cfg->base_params->max_event_log_size;
1506         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1507
1508         /*
1509          * figure out the offset of chain noise reset and gain commands
1510          * base on the size of standard phy calibration commands table size
1511          */
1512         if (fw->ucode_capa.standard_phy_calibration_size >
1513             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1514                 fw->ucode_capa.standard_phy_calibration_size =
1515                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1516
1517         /* We have our copies now, allow OS release its copies */
1518         release_firmware(ucode_raw);
1519
1520         mutex_lock(&iwlwifi_opmode_table_mtx);
1521         switch (fw->type) {
1522         case IWL_FW_DVM:
1523                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1524                 break;
1525         default:
1526                 WARN(1, "Invalid fw type %d\n", fw->type);
1527         case IWL_FW_MVM:
1528                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1529                 break;
1530         }
1531
1532         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1533                  drv->fw.fw_version, op->name);
1534
1535         /* add this device to the list of devices using this op_mode */
1536         list_add_tail(&drv->list, &op->drv);
1537
1538         if (op->ops) {
1539                 drv->op_mode = _iwl_op_mode_start(drv, op);
1540
1541                 if (!drv->op_mode) {
1542                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1543                         goto out_unbind;
1544                 }
1545         } else {
1546                 load_module = true;
1547         }
1548         mutex_unlock(&iwlwifi_opmode_table_mtx);
1549
1550         /*
1551          * Complete the firmware request last so that
1552          * a driver unbind (stop) doesn't run while we
1553          * are doing the start() above.
1554          */
1555         complete(&drv->request_firmware_complete);
1556
1557         /*
1558          * Load the module last so we don't block anything
1559          * else from proceeding if the module fails to load
1560          * or hangs loading.
1561          */
1562         if (load_module) {
1563                 request_module("%s", op->name);
1564 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1565                 if (err)
1566                         IWL_ERR(drv,
1567                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1568                                 op->name, err);
1569 #endif
1570         }
1571         goto free;
1572
1573  try_again:
1574         /* try next, if any */
1575         release_firmware(ucode_raw);
1576         if (iwl_request_firmware(drv, false))
1577                 goto out_unbind;
1578         goto free;
1579
1580  out_free_fw:
1581         iwl_dealloc_ucode(drv);
1582         release_firmware(ucode_raw);
1583  out_unbind:
1584         complete(&drv->request_firmware_complete);
1585         device_release_driver(drv->trans->dev);
1586  free:
1587         if (pieces) {
1588                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1589                         kfree(pieces->img[i].sec);
1590                 kfree(pieces->dbg_mem_tlv);
1591                 kfree(pieces);
1592         }
1593 }
1594
1595 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1596 {
1597         struct iwl_drv *drv;
1598         int ret;
1599
1600         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1601         if (!drv) {
1602                 ret = -ENOMEM;
1603                 goto err;
1604         }
1605
1606         drv->trans = trans;
1607         drv->dev = trans->dev;
1608
1609         init_completion(&drv->request_firmware_complete);
1610         INIT_LIST_HEAD(&drv->list);
1611
1612 #ifdef CONFIG_IWLWIFI_DEBUGFS
1613         /* Create the device debugfs entries. */
1614         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1615                                             iwl_dbgfs_root);
1616
1617         if (!drv->dbgfs_drv) {
1618                 IWL_ERR(drv, "failed to create debugfs directory\n");
1619                 ret = -ENOMEM;
1620                 goto err_free_drv;
1621         }
1622
1623         /* Create transport layer debugfs dir */
1624         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1625
1626         if (!drv->trans->dbgfs_dir) {
1627                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1628                 ret = -ENOMEM;
1629                 goto err_free_dbgfs;
1630         }
1631 #endif
1632
1633         ret = iwl_request_firmware(drv, true);
1634         if (ret) {
1635                 IWL_ERR(trans, "Couldn't request the fw\n");
1636                 goto err_fw;
1637         }
1638
1639         return drv;
1640
1641 err_fw:
1642 #ifdef CONFIG_IWLWIFI_DEBUGFS
1643 err_free_dbgfs:
1644         debugfs_remove_recursive(drv->dbgfs_drv);
1645 err_free_drv:
1646 #endif
1647         kfree(drv);
1648 err:
1649         return ERR_PTR(ret);
1650 }
1651
1652 void iwl_drv_stop(struct iwl_drv *drv)
1653 {
1654         wait_for_completion(&drv->request_firmware_complete);
1655
1656         _iwl_op_mode_stop(drv);
1657
1658         iwl_dealloc_ucode(drv);
1659
1660         mutex_lock(&iwlwifi_opmode_table_mtx);
1661         /*
1662          * List is empty (this item wasn't added)
1663          * when firmware loading failed -- in that
1664          * case we can't remove it from any list.
1665          */
1666         if (!list_empty(&drv->list))
1667                 list_del(&drv->list);
1668         mutex_unlock(&iwlwifi_opmode_table_mtx);
1669
1670 #ifdef CONFIG_IWLWIFI_DEBUGFS
1671         debugfs_remove_recursive(drv->dbgfs_drv);
1672 #endif
1673
1674         kfree(drv);
1675 }
1676
1677
1678 /* shared module parameters */
1679 struct iwl_mod_params iwlwifi_mod_params = {
1680         .fw_restart = true,
1681         .bt_coex_active = true,
1682         .power_level = IWL_POWER_INDEX_1,
1683         .d0i3_disable = true,
1684         .d0i3_timeout = 1000,
1685         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1686         /* the rest are 0 by default */
1687 };
1688 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1689
1690 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1691 {
1692         int i;
1693         struct iwl_drv *drv;
1694         struct iwlwifi_opmode_table *op;
1695
1696         mutex_lock(&iwlwifi_opmode_table_mtx);
1697         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1698                 op = &iwlwifi_opmode_table[i];
1699                 if (strcmp(op->name, name))
1700                         continue;
1701                 op->ops = ops;
1702                 /* TODO: need to handle exceptional case */
1703                 list_for_each_entry(drv, &op->drv, list)
1704                         drv->op_mode = _iwl_op_mode_start(drv, op);
1705
1706                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1707                 return 0;
1708         }
1709         mutex_unlock(&iwlwifi_opmode_table_mtx);
1710         return -EIO;
1711 }
1712 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1713
1714 void iwl_opmode_deregister(const char *name)
1715 {
1716         int i;
1717         struct iwl_drv *drv;
1718
1719         mutex_lock(&iwlwifi_opmode_table_mtx);
1720         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1721                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1722                         continue;
1723                 iwlwifi_opmode_table[i].ops = NULL;
1724
1725                 /* call the stop routine for all devices */
1726                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1727                         _iwl_op_mode_stop(drv);
1728
1729                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1730                 return;
1731         }
1732         mutex_unlock(&iwlwifi_opmode_table_mtx);
1733 }
1734 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1735
1736 static int __init iwl_drv_init(void)
1737 {
1738         int i;
1739
1740         mutex_init(&iwlwifi_opmode_table_mtx);
1741
1742         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1743                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1744
1745         pr_info(DRV_DESCRIPTION "\n");
1746         pr_info(DRV_COPYRIGHT "\n");
1747
1748 #ifdef CONFIG_IWLWIFI_DEBUGFS
1749         /* Create the root of iwlwifi debugfs subsystem. */
1750         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1751
1752         if (!iwl_dbgfs_root)
1753                 return -EFAULT;
1754 #endif
1755
1756         return iwl_pci_register_driver();
1757 }
1758 module_init(iwl_drv_init);
1759
1760 static void __exit iwl_drv_exit(void)
1761 {
1762         iwl_pci_unregister_driver();
1763
1764 #ifdef CONFIG_IWLWIFI_DEBUGFS
1765         debugfs_remove_recursive(iwl_dbgfs_root);
1766 #endif
1767 }
1768 module_exit(iwl_drv_exit);
1769
1770 #ifdef CONFIG_IWLWIFI_DEBUG
1771 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1772 MODULE_PARM_DESC(debug, "debug output mask");
1773 #endif
1774
1775 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1776 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1777 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1778 MODULE_PARM_DESC(11n_disable,
1779         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1780 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1781 MODULE_PARM_DESC(amsdu_size,
1782                  "amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0)");
1783 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1784 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1785
1786 module_param_named(antenna_coupling, iwlwifi_mod_params.antenna_coupling,
1787                    int, 0444);
1788 MODULE_PARM_DESC(antenna_coupling,
1789                  "specify antenna coupling in dB (default: 0 dB)");
1790
1791 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1792 MODULE_PARM_DESC(nvm_file, "NVM file name");
1793
1794 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, bool, 0444);
1795 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1796
1797 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444);
1798 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1799
1800 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1801 MODULE_PARM_DESC(uapsd_disable,
1802                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1803
1804 /*
1805  * set bt_coex_active to true, uCode will do kill/defer
1806  * every time the priority line is asserted (BT is sending signals on the
1807  * priority line in the PCIx).
1808  * set bt_coex_active to false, uCode will ignore the BT activity and
1809  * perform the normal operation
1810  *
1811  * User might experience transmit issue on some platform due to WiFi/BT
1812  * co-exist problem. The possible behaviors are:
1813  *   Able to scan and finding all the available AP
1814  *   Not able to associate with any AP
1815  * On those platforms, WiFi communication can be restored by set
1816  * "bt_coex_active" module parameter to "false"
1817  *
1818  * default: bt_coex_active = true (BT_COEX_ENABLE)
1819  */
1820 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1821                    bool, 0444);
1822 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1823
1824 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1825 MODULE_PARM_DESC(led_mode, "0=system default, "
1826                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1827
1828 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1829 MODULE_PARM_DESC(power_save,
1830                  "enable WiFi power management (default: disable)");
1831
1832 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1833 MODULE_PARM_DESC(power_level,
1834                  "default power save level (range from 1 - 5, default: 1)");
1835
1836 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444);
1837 MODULE_PARM_DESC(fw_monitor,
1838                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1839
1840 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout, uint, 0444);
1841 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1842
1843 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1844 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");