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

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2005-2014, 2018-2020 Intel Corporation
   4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
   5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
   6  */
   7 #include <linux/completion.h>
   8 #include <linux/dma-mapping.h>
   9 #include <linux/firmware.h>
  10 #include <linux/module.h>
  11 #include <linux/vmalloc.h>
  12
  13 #include "iwl-drv.h"
  14 #include "iwl-csr.h"
  15 #include "iwl-debug.h"
  16 #include "iwl-trans.h"
  17 #include "iwl-op-mode.h"
  18 #include "iwl-agn-hw.h"
  19 #include "fw/img.h"
  20 #include "iwl-dbg-tlv.h"
  21 #include "iwl-config.h"
  22 #include "iwl-modparams.h"
  23 #include "fw/api/alive.h"
  24 #include "fw/api/mac.h"
  25
  26 /******************************************************************************
  27  *
  28  * module boiler plate
  29  *
  30  ******************************************************************************/
  31
  32 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  33 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  34 MODULE_AUTHOR(DRV_AUTHOR);
  35 MODULE_LICENSE("GPL");
  36
  37 #ifdef CONFIG_IWLWIFI_DEBUGFS
  38 static struct dentry *iwl_dbgfs_root;
  39 #endif
  40
  41 /**
  42  * struct iwl_drv - drv common data
  43  * @list: list of drv structures using this opmode
  44  * @fw: the iwl_fw structure
  45  * @op_mode: the running op_mode
  46  * @trans: transport layer
  47  * @dev: for debug prints only
  48  * @fw_index: firmware revision to try loading
  49  * @firmware_name: composite filename of ucode file to load
  50  * @request_firmware_complete: the firmware has been obtained from user space
  51  * @dbgfs_drv: debugfs root directory entry
  52  * @dbgfs_trans: debugfs transport directory entry
  53  * @dbgfs_op_mode: debugfs op_mode directory entry
  54  */
  55 struct iwl_drv {
  56         struct list_head list;
  57         struct iwl_fw fw;
  58
  59         struct iwl_op_mode *op_mode;
  60         struct iwl_trans *trans;
  61         struct device *dev;
  62
  63         int fw_index;                   /* firmware we're trying to load */
  64         char firmware_name[64];         /* name of firmware file to load */
  65
  66         struct completion request_firmware_complete;
  67
  68 #ifdef CONFIG_IWLWIFI_DEBUGFS
  69         struct dentry *dbgfs_drv;
  70         struct dentry *dbgfs_trans;
  71         struct dentry *dbgfs_op_mode;
  72 #endif
  73 };
  74
  75 enum {
  76         DVM_OP_MODE,
  77         MVM_OP_MODE,
  78 };
  79
  80 /* Protects the table contents, i.e. the ops pointer & drv list */
  81 static struct mutex iwlwifi_opmode_table_mtx;
  82 static struct iwlwifi_opmode_table {
  83         const char *name;                       /* name: iwldvm, iwlmvm, etc */
  84         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
  85         struct list_head drv;           /* list of devices using this op_mode */
  86 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
  87         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
  88         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
  89 };
  90
  91 #define IWL_DEFAULT_SCAN_CHANNELS 40
  92
  93 /*
  94  * struct fw_sec: Just for the image parsing process.
  95  * For the fw storage we are using struct fw_desc.
  96  */
  97 struct fw_sec {
  98         const void *data;               /* the sec data */
  99         size_t size;                    /* section size */
 100         u32 offset;                     /* offset of writing in the device */
 101 };
 102
 103 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 104 {
 105         vfree(desc->data);
 106         desc->data = NULL;
 107         desc->len = 0;
 108 }
 109
 110 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 111 {
 112         int i;
 113         for (i = 0; i < img->num_sec; i++)
 114                 iwl_free_fw_desc(drv, &img->sec[i]);
 115         kfree(img->sec);
 116 }
 117
 118 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 119 {
 120         int i;
 121
 122         kfree(drv->fw.dbg.dest_tlv);
 123         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++)
 124                 kfree(drv->fw.dbg.conf_tlv[i]);
 125         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++)
 126                 kfree(drv->fw.dbg.trigger_tlv[i]);
 127         kfree(drv->fw.dbg.mem_tlv);
 128         kfree(drv->fw.iml);
 129         kfree(drv->fw.ucode_capa.cmd_versions);
 130         kfree(drv->fw.phy_integration_ver);
 131
 132         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 133                 iwl_free_fw_img(drv, drv->fw.img + i);
 134 }
 135
 136 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 137                              struct fw_sec *sec)
 138 {
 139         void *data;
 140
 141         desc->data = NULL;
 142
 143         if (!sec || !sec->size)
 144                 return -EINVAL;
 145
 146         data = vmalloc(sec->size);
 147         if (!data)
 148                 return -ENOMEM;
 149
 150         desc->len = sec->size;
 151         desc->offset = sec->offset;
 152         memcpy(data, sec->data, desc->len);
 153         desc->data = data;
 154
 155         return 0;
 156 }
 157
 158 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 159                                 void *context);
 160
 161 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 162 {
 163         const struct iwl_cfg *cfg = drv->trans->cfg;
 164         char tag[8];
 165
 166         if (drv->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
 167             (CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_B_STEP &&
 168              CSR_HW_REV_STEP(drv->trans->hw_rev) != SILICON_C_STEP)) {
 169                 IWL_ERR(drv,
 170                         "Only HW steps B and C are currently supported (0x%0x)\n",
 171                         drv->trans->hw_rev);
 172                 return -EINVAL;
 173         }
 174
 175         if (first) {
 176                 drv->fw_index = cfg->ucode_api_max;
 177                 sprintf(tag, "%d", drv->fw_index);
 178         } else {
 179                 drv->fw_index--;
 180                 sprintf(tag, "%d", drv->fw_index);
 181         }
 182
 183         if (drv->fw_index < cfg->ucode_api_min) {
 184                 IWL_ERR(drv, "no suitable firmware found!\n");
 185
 186                 if (cfg->ucode_api_min == cfg->ucode_api_max) {
 187                         IWL_ERR(drv, "%s%d is required\n", cfg->fw_name_pre,
 188                                 cfg->ucode_api_max);
 189                 } else {
 190                         IWL_ERR(drv, "minimum version required: %s%d\n",
 191                                 cfg->fw_name_pre, cfg->ucode_api_min);
 192                         IWL_ERR(drv, "maximum version supported: %s%d\n",
 193                                 cfg->fw_name_pre, cfg->ucode_api_max);
 194                 }
 195
 196                 IWL_ERR(drv,
 197                         "check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git\n");
 198                 return -ENOENT;
 199         }
 200
 201         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 202                  cfg->fw_name_pre, tag);
 203
 204         IWL_DEBUG_FW_INFO(drv, "attempting to load firmware '%s'\n",
 205                           drv->firmware_name);
 206
 207         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 208                                        drv->trans->dev,
 209                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 210 }
 211
 212 struct fw_img_parsing {
 213         struct fw_sec *sec;
 214         int sec_counter;
 215 };
 216
 217 /*
 218  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 219  */
 220 struct fw_sec_parsing {
 221         __le32 offset;
 222         const u8 data[];
 223 } __packed;
 224
 225 /**
 226  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 227  *
 228  * @ucode_type: the uCode to which the following default calib relates.
 229  * @calib: default calibrations.
 230  */
 231 struct iwl_tlv_calib_data {
 232         __le32 ucode_type;
 233         struct iwl_tlv_calib_ctrl calib;
 234 } __packed;
 235
 236 struct iwl_firmware_pieces {
 237         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 238
 239         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 240         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 241
 242         /* FW debug data parsed for driver usage */
 243         bool dbg_dest_tlv_init;
 244         u8 *dbg_dest_ver;
 245         union {
 246                 struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 247                 struct iwl_fw_dbg_dest_tlv_v1 *dbg_dest_tlv_v1;
 248         };
 249         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 250         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 251         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 252         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 253         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv;
 254         size_t n_mem_tlv;
 255 };
 256
 257 /*
 258  * These functions are just to extract uCode section data from the pieces
 259  * structure.
 260  */
 261 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 262                               enum iwl_ucode_type type,
 263                               int  sec)
 264 {
 265         return &pieces->img[type].sec[sec];
 266 }
 267
 268 static void alloc_sec_data(struct iwl_firmware_pieces *pieces,
 269                            enum iwl_ucode_type type,
 270                            int sec)
 271 {
 272         struct fw_img_parsing *img = &pieces->img[type];
 273         struct fw_sec *sec_memory;
 274         int size = sec + 1;
 275         size_t alloc_size = sizeof(*img->sec) * size;
 276
 277         if (img->sec && img->sec_counter >= size)
 278                 return;
 279
 280         sec_memory = krealloc(img->sec, alloc_size, GFP_KERNEL);
 281         if (!sec_memory)
 282                 return;
 283
 284         img->sec = sec_memory;
 285         img->sec_counter = size;
 286 }
 287
 288 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 289                          enum iwl_ucode_type type,
 290                          int sec,
 291                          const void *data)
 292 {
 293         alloc_sec_data(pieces, type, sec);
 294
 295         pieces->img[type].sec[sec].data = data;
 296 }
 297
 298 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 299                          enum iwl_ucode_type type,
 300                          int sec,
 301                          size_t size)
 302 {
 303         alloc_sec_data(pieces, type, sec);
 304
 305         pieces->img[type].sec[sec].size = size;
 306 }
 307
 308 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 309                            enum iwl_ucode_type type,
 310                            int sec)
 311 {
 312         return pieces->img[type].sec[sec].size;
 313 }
 314
 315 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 316                            enum iwl_ucode_type type,
 317                            int sec,
 318                            u32 offset)
 319 {
 320         alloc_sec_data(pieces, type, sec);
 321
 322         pieces->img[type].sec[sec].offset = offset;
 323 }
 324
 325 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 326 {
 327         int i, j;
 328         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 329         struct iwl_fw_cipher_scheme *fwcs;
 330
 331         if (len < sizeof(*l) ||
 332             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 333                 return -EINVAL;
 334
 335         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 336                 fwcs = &l->cs[j];
 337
 338                 /* we skip schemes with zero cipher suite selector */
 339                 if (!fwcs->cipher)
 340                         continue;
 341
 342                 fw->cs[j++] = *fwcs;
 343         }
 344
 345         return 0;
 346 }
 347
 348 /*
 349  * Gets uCode section from tlv.
 350  */
 351 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 352                                const void *data, enum iwl_ucode_type type,
 353                                int size)
 354 {
 355         struct fw_img_parsing *img;
 356         struct fw_sec *sec;
 357         struct fw_sec_parsing *sec_parse;
 358         size_t alloc_size;
 359
 360         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 361                 return -1;
 362
 363         sec_parse = (struct fw_sec_parsing *)data;
 364
 365         img = &pieces->img[type];
 366
 367         alloc_size = sizeof(*img->sec) * (img->sec_counter + 1);
 368         sec = krealloc(img->sec, alloc_size, GFP_KERNEL);
 369         if (!sec)
 370                 return -ENOMEM;
 371         img->sec = sec;
 372
 373         sec = &img->sec[img->sec_counter];
 374
 375         sec->offset = le32_to_cpu(sec_parse->offset);
 376         sec->data = sec_parse->data;
 377         sec->size = size - sizeof(sec_parse->offset);
 378
 379         ++img->sec_counter;
 380
 381         return 0;
 382 }
 383
 384 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 385 {
 386         struct iwl_tlv_calib_data *def_calib =
 387                                         (struct iwl_tlv_calib_data *)data;
 388         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 389         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 390                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 391                         ucode_type);
 392                 return -EINVAL;
 393         }
 394         drv->fw.default_calib[ucode_type].flow_trigger =
 395                 def_calib->calib.flow_trigger;
 396         drv->fw.default_calib[ucode_type].event_trigger =
 397                 def_calib->calib.event_trigger;
 398
 399         return 0;
 400 }
 401
 402 static void iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 403                                     struct iwl_ucode_capabilities *capa)
 404 {
 405         const struct iwl_ucode_api *ucode_api = (void *)data;
 406         u32 api_index = le32_to_cpu(ucode_api->api_index);
 407         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 408         int i;
 409
 410         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 411                 IWL_WARN(drv,
 412                          "api flags index %d larger than supported by driver\n",
 413                          api_index);
 414                 return;
 415         }
 416
 417         for (i = 0; i < 32; i++) {
 418                 if (api_flags & BIT(i))
 419                         __set_bit(i + 32 * api_index, capa->_api);
 420         }
 421 }
 422
 423 static void iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 424                                        struct iwl_ucode_capabilities *capa)
 425 {
 426         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 427         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 428         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 429         int i;
 430
 431         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 432                 IWL_WARN(drv,
 433                          "capa flags index %d larger than supported by driver\n",
 434                          api_index);
 435                 return;
 436         }
 437
 438         for (i = 0; i < 32; i++) {
 439                 if (api_flags & BIT(i))
 440                         __set_bit(i + 32 * api_index, capa->_capa);
 441         }
 442 }
 443
 444 static const char *iwl_reduced_fw_name(struct iwl_drv *drv)
 445 {
 446         const char *name = drv->firmware_name;
 447
 448         if (strncmp(name, "iwlwifi-", 8) == 0)
 449                 name += 8;
 450
 451         return name;
 452 }
 453
 454 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 455                                     const struct firmware *ucode_raw,
 456                                     struct iwl_firmware_pieces *pieces)
 457 {
 458         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 459         u32 api_ver, hdr_size, build;
 460         char buildstr[25];
 461         const u8 *src;
 462
 463         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 464         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 465
 466         switch (api_ver) {
 467         default:
 468                 hdr_size = 28;
 469                 if (ucode_raw->size < hdr_size) {
 470                         IWL_ERR(drv, "File size too small!\n");
 471                         return -EINVAL;
 472                 }
 473                 build = le32_to_cpu(ucode->u.v2.build);
 474                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 475                              le32_to_cpu(ucode->u.v2.inst_size));
 476                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 477                              le32_to_cpu(ucode->u.v2.data_size));
 478                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 479                              le32_to_cpu(ucode->u.v2.init_size));
 480                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 481                              le32_to_cpu(ucode->u.v2.init_data_size));
 482                 src = ucode->u.v2.data;
 483                 break;
 484         case 0:
 485         case 1:
 486         case 2:
 487                 hdr_size = 24;
 488                 if (ucode_raw->size < hdr_size) {
 489                         IWL_ERR(drv, "File size too small!\n");
 490                         return -EINVAL;
 491                 }
 492                 build = 0;
 493                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 494                              le32_to_cpu(ucode->u.v1.inst_size));
 495                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 496                              le32_to_cpu(ucode->u.v1.data_size));
 497                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 498                              le32_to_cpu(ucode->u.v1.init_size));
 499                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 500                              le32_to_cpu(ucode->u.v1.init_data_size));
 501                 src = ucode->u.v1.data;
 502                 break;
 503         }
 504
 505         if (build)
 506                 sprintf(buildstr, " build %u", build);
 507         else
 508                 buildstr[0] = '\0';
 509
 510         snprintf(drv->fw.fw_version,
 511                  sizeof(drv->fw.fw_version),
 512                  "%u.%u.%u.%u%s %s",
 513                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 514                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 515                  IWL_UCODE_API(drv->fw.ucode_ver),
 516                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 517                  buildstr, iwl_reduced_fw_name(drv));
 518
 519         /* Verify size of file vs. image size info in file's header */
 520
 521         if (ucode_raw->size != hdr_size +
 522             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 523             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 524             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 525             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 526
 527                 IWL_ERR(drv,
 528                         "uCode file size %d does not match expected size\n",
 529                         (int)ucode_raw->size);
 530                 return -EINVAL;
 531         }
 532
 533
 534         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 535         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 536         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 537                        IWLAGN_RTC_INST_LOWER_BOUND);
 538         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 539         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 540         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 541                        IWLAGN_RTC_DATA_LOWER_BOUND);
 542         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 543         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 544         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 545                        IWLAGN_RTC_INST_LOWER_BOUND);
 546         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 547         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 548         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 549                        IWLAGN_RTC_DATA_LOWER_BOUND);
 550         return 0;
 551 }
 552
 553 #define FW_ADDR_CACHE_CONTROL 0xC0000000
 554
 555 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 556                                 const struct firmware *ucode_raw,
 557                                 struct iwl_firmware_pieces *pieces,
 558                                 struct iwl_ucode_capabilities *capa,
 559                                 bool *usniffer_images)
 560 {
 561         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 562         struct iwl_ucode_tlv *tlv;
 563         size_t len = ucode_raw->size;
 564         const u8 *data;
 565         u32 tlv_len;
 566         u32 usniffer_img;
 567         enum iwl_ucode_tlv_type tlv_type;
 568         const u8 *tlv_data;
 569         char buildstr[25];
 570         u32 build, paging_mem_size;
 571         int num_of_cpus;
 572         bool usniffer_req = false;
 573
 574         if (len < sizeof(*ucode)) {
 575                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 576                 return -EINVAL;
 577         }
 578
 579         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 580                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 581                         le32_to_cpu(ucode->magic));
 582                 return -EINVAL;
 583         }
 584
 585         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 586         memcpy(drv->fw.human_readable, ucode->human_readable,
 587                sizeof(drv->fw.human_readable));
 588         build = le32_to_cpu(ucode->build);
 589
 590         if (build)
 591                 sprintf(buildstr, " build %u", build);
 592         else
 593                 buildstr[0] = '\0';
 594
 595         snprintf(drv->fw.fw_version,
 596                  sizeof(drv->fw.fw_version),
 597                  "%u.%u.%u.%u%s %s",
 598                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 599                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 600                  IWL_UCODE_API(drv->fw.ucode_ver),
 601                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 602                  buildstr, iwl_reduced_fw_name(drv));
 603
 604         data = ucode->data;
 605
 606         len -= sizeof(*ucode);
 607
 608         while (len >= sizeof(*tlv)) {
 609                 len -= sizeof(*tlv);
 610                 tlv = (void *)data;
 611
 612                 tlv_len = le32_to_cpu(tlv->length);
 613                 tlv_type = le32_to_cpu(tlv->type);
 614                 tlv_data = tlv->data;
 615
 616                 if (len < tlv_len) {
 617                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 618                                 len, tlv_len);
 619                         return -EINVAL;
 620                 }
 621                 len -= ALIGN(tlv_len, 4);
 622                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 623
 624                 switch (tlv_type) {
 625                 case IWL_UCODE_TLV_INST:
 626                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 627                                      IWL_UCODE_SECTION_INST, tlv_data);
 628                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 629                                      IWL_UCODE_SECTION_INST, tlv_len);
 630                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 631                                        IWL_UCODE_SECTION_INST,
 632                                        IWLAGN_RTC_INST_LOWER_BOUND);
 633                         break;
 634                 case IWL_UCODE_TLV_DATA:
 635                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 636                                      IWL_UCODE_SECTION_DATA, tlv_data);
 637                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 638                                      IWL_UCODE_SECTION_DATA, tlv_len);
 639                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 640                                        IWL_UCODE_SECTION_DATA,
 641                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 642                         break;
 643                 case IWL_UCODE_TLV_INIT:
 644                         set_sec_data(pieces, IWL_UCODE_INIT,
 645                                      IWL_UCODE_SECTION_INST, tlv_data);
 646                         set_sec_size(pieces, IWL_UCODE_INIT,
 647                                      IWL_UCODE_SECTION_INST, tlv_len);
 648                         set_sec_offset(pieces, IWL_UCODE_INIT,
 649                                        IWL_UCODE_SECTION_INST,
 650                                        IWLAGN_RTC_INST_LOWER_BOUND);
 651                         break;
 652                 case IWL_UCODE_TLV_INIT_DATA:
 653                         set_sec_data(pieces, IWL_UCODE_INIT,
 654                                      IWL_UCODE_SECTION_DATA, tlv_data);
 655                         set_sec_size(pieces, IWL_UCODE_INIT,
 656                                      IWL_UCODE_SECTION_DATA, tlv_len);
 657                         set_sec_offset(pieces, IWL_UCODE_INIT,
 658                                        IWL_UCODE_SECTION_DATA,
 659                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 660                         break;
 661                 case IWL_UCODE_TLV_BOOT:
 662                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 663                         break;
 664                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 665                         if (tlv_len != sizeof(u32))
 666                                 goto invalid_tlv_len;
 667                         capa->max_probe_length =
 668                                         le32_to_cpup((__le32 *)tlv_data);
 669                         break;
 670                 case IWL_UCODE_TLV_PAN:
 671                         if (tlv_len)
 672                                 goto invalid_tlv_len;
 673                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 674                         break;
 675                 case IWL_UCODE_TLV_FLAGS:
 676                         /* must be at least one u32 */
 677                         if (tlv_len < sizeof(u32))
 678                                 goto invalid_tlv_len;
 679                         /* and a proper number of u32s */
 680                         if (tlv_len % sizeof(u32))
 681                                 goto invalid_tlv_len;
 682                         /*
 683                          * This driver only reads the first u32 as
 684                          * right now no more features are defined,
 685                          * if that changes then either the driver
 686                          * will not work with the new firmware, or
 687                          * it'll not take advantage of new features.
 688                          */
 689                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 690                         break;
 691                 case IWL_UCODE_TLV_API_CHANGES_SET:
 692                         if (tlv_len != sizeof(struct iwl_ucode_api))
 693                                 goto invalid_tlv_len;
 694                         iwl_set_ucode_api_flags(drv, tlv_data, capa);
 695                         break;
 696                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 697                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 698                                 goto invalid_tlv_len;
 699                         iwl_set_ucode_capabilities(drv, tlv_data, capa);
 700                         break;
 701                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 702                         if (tlv_len != sizeof(u32))
 703                                 goto invalid_tlv_len;
 704                         pieces->init_evtlog_ptr =
 705                                         le32_to_cpup((__le32 *)tlv_data);
 706                         break;
 707                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 708                         if (tlv_len != sizeof(u32))
 709                                 goto invalid_tlv_len;
 710                         pieces->init_evtlog_size =
 711                                         le32_to_cpup((__le32 *)tlv_data);
 712                         break;
 713                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 714                         if (tlv_len != sizeof(u32))
 715                                 goto invalid_tlv_len;
 716                         pieces->init_errlog_ptr =
 717                                         le32_to_cpup((__le32 *)tlv_data);
 718                         break;
 719                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 720                         if (tlv_len != sizeof(u32))
 721                                 goto invalid_tlv_len;
 722                         pieces->inst_evtlog_ptr =
 723                                         le32_to_cpup((__le32 *)tlv_data);
 724                         break;
 725                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 726                         if (tlv_len != sizeof(u32))
 727                                 goto invalid_tlv_len;
 728                         pieces->inst_evtlog_size =
 729                                         le32_to_cpup((__le32 *)tlv_data);
 730                         break;
 731                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 732                         if (tlv_len != sizeof(u32))
 733                                 goto invalid_tlv_len;
 734                         pieces->inst_errlog_ptr =
 735                                         le32_to_cpup((__le32 *)tlv_data);
 736                         break;
 737                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 738                         if (tlv_len)
 739                                 goto invalid_tlv_len;
 740                         drv->fw.enhance_sensitivity_table = true;
 741                         break;
 742                 case IWL_UCODE_TLV_WOWLAN_INST:
 743                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 744                                      IWL_UCODE_SECTION_INST, tlv_data);
 745                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 746                                      IWL_UCODE_SECTION_INST, tlv_len);
 747                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 748                                        IWL_UCODE_SECTION_INST,
 749                                        IWLAGN_RTC_INST_LOWER_BOUND);
 750                         break;
 751                 case IWL_UCODE_TLV_WOWLAN_DATA:
 752                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 753                                      IWL_UCODE_SECTION_DATA, tlv_data);
 754                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 755                                      IWL_UCODE_SECTION_DATA, tlv_len);
 756                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 757                                        IWL_UCODE_SECTION_DATA,
 758                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 759                         break;
 760                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 761                         if (tlv_len != sizeof(u32))
 762                                 goto invalid_tlv_len;
 763                         capa->standard_phy_calibration_size =
 764                                         le32_to_cpup((__le32 *)tlv_data);
 765                         break;
 766                 case IWL_UCODE_TLV_SEC_RT:
 767                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 768                                             tlv_len);
 769                         drv->fw.type = IWL_FW_MVM;
 770                         break;
 771                 case IWL_UCODE_TLV_SEC_INIT:
 772                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 773                                             tlv_len);
 774                         drv->fw.type = IWL_FW_MVM;
 775                         break;
 776                 case IWL_UCODE_TLV_SEC_WOWLAN:
 777                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 778                                             tlv_len);
 779                         drv->fw.type = IWL_FW_MVM;
 780                         break;
 781                 case IWL_UCODE_TLV_DEF_CALIB:
 782                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 783                                 goto invalid_tlv_len;
 784                         if (iwl_set_default_calib(drv, tlv_data))
 785                                 goto tlv_error;
 786                         break;
 787                 case IWL_UCODE_TLV_PHY_SKU:
 788                         if (tlv_len != sizeof(u32))
 789                                 goto invalid_tlv_len;
 790                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 791                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 792                                                 FW_PHY_CFG_TX_CHAIN) >>
 793                                                 FW_PHY_CFG_TX_CHAIN_POS;
 794                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 795                                                 FW_PHY_CFG_RX_CHAIN) >>
 796                                                 FW_PHY_CFG_RX_CHAIN_POS;
 797                         break;
 798                 case IWL_UCODE_TLV_SECURE_SEC_RT:
 799                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 800                                             tlv_len);
 801                         drv->fw.type = IWL_FW_MVM;
 802                         break;
 803                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 804                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 805                                             tlv_len);
 806                         drv->fw.type = IWL_FW_MVM;
 807                         break;
 808                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 809                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 810                                             tlv_len);
 811                         drv->fw.type = IWL_FW_MVM;
 812                         break;
 813                 case IWL_UCODE_TLV_NUM_OF_CPU:
 814                         if (tlv_len != sizeof(u32))
 815                                 goto invalid_tlv_len;
 816                         num_of_cpus =
 817                                 le32_to_cpup((__le32 *)tlv_data);
 818
 819                         if (num_of_cpus == 2) {
 820                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 821                                         true;
 822                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 823                                         true;
 824                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 825                                         true;
 826                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 827                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 828                                 return -EINVAL;
 829                         }
 830                         break;
 831                 case IWL_UCODE_TLV_CSCHEME:
 832                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 833                                 goto invalid_tlv_len;
 834                         break;
 835                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 836                         if (tlv_len != sizeof(u32))
 837                                 goto invalid_tlv_len;
 838                         capa->n_scan_channels =
 839                                 le32_to_cpup((__le32 *)tlv_data);
 840                         break;
 841                 case IWL_UCODE_TLV_FW_VERSION: {
 842                         __le32 *ptr = (void *)tlv_data;
 843                         u32 major, minor;
 844                         u8 local_comp;
 845
 846                         if (tlv_len != sizeof(u32) * 3)
 847                                 goto invalid_tlv_len;
 848
 849                         major = le32_to_cpup(ptr++);
 850                         minor = le32_to_cpup(ptr++);
 851                         local_comp = le32_to_cpup(ptr);
 852
 853                         if (major >= 35)
 854                                 snprintf(drv->fw.fw_version,
 855                                          sizeof(drv->fw.fw_version),
 856                                         "%u.%08x.%u %s", major, minor,
 857                                         local_comp, iwl_reduced_fw_name(drv));
 858                         else
 859                                 snprintf(drv->fw.fw_version,
 860                                          sizeof(drv->fw.fw_version),
 861                                         "%u.%u.%u %s", major, minor,
 862                                         local_comp, iwl_reduced_fw_name(drv));
 863                         break;
 864                         }
 865                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 866                         struct iwl_fw_dbg_dest_tlv *dest = NULL;
 867                         struct iwl_fw_dbg_dest_tlv_v1 *dest_v1 = NULL;
 868                         u8 mon_mode;
 869
 870                         pieces->dbg_dest_ver = (u8 *)tlv_data;
 871                         if (*pieces->dbg_dest_ver == 1) {
 872                                 dest = (void *)tlv_data;
 873                         } else if (*pieces->dbg_dest_ver == 0) {
 874                                 dest_v1 = (void *)tlv_data;
 875                         } else {
 876                                 IWL_ERR(drv,
 877                                         "The version is %d, and it is invalid\n",
 878                                         *pieces->dbg_dest_ver);
 879                                 break;
 880                         }
 881
 882                         if (pieces->dbg_dest_tlv_init) {
 883                                 IWL_ERR(drv,
 884                                         "dbg destination ignored, already exists\n");
 885                                 break;
 886                         }
 887
 888                         pieces->dbg_dest_tlv_init = true;
 889
 890                         if (dest_v1) {
 891                                 pieces->dbg_dest_tlv_v1 = dest_v1;
 892                                 mon_mode = dest_v1->monitor_mode;
 893                         } else {
 894                                 pieces->dbg_dest_tlv = dest;
 895                                 mon_mode = dest->monitor_mode;
 896                         }
 897
 898                         IWL_INFO(drv, "Found debug destination: %s\n",
 899                                  get_fw_dbg_mode_string(mon_mode));
 900
 901                         drv->fw.dbg.n_dest_reg = (dest_v1) ?
 902                                 tlv_len -
 903                                 offsetof(struct iwl_fw_dbg_dest_tlv_v1,
 904                                          reg_ops) :
 905                                 tlv_len -
 906                                 offsetof(struct iwl_fw_dbg_dest_tlv,
 907                                          reg_ops);
 908
 909                         drv->fw.dbg.n_dest_reg /=
 910                                 sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]);
 911
 912                         break;
 913                         }
 914                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 915                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 916
 917                         if (!pieces->dbg_dest_tlv_init) {
 918                                 IWL_ERR(drv,
 919                                         "Ignore dbg config %d - no destination configured\n",
 920                                         conf->id);
 921                                 break;
 922                         }
 923
 924                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg.conf_tlv)) {
 925                                 IWL_ERR(drv,
 926                                         "Skip unknown configuration: %d\n",
 927                                         conf->id);
 928                                 break;
 929                         }
 930
 931                         if (pieces->dbg_conf_tlv[conf->id]) {
 932                                 IWL_ERR(drv,
 933                                         "Ignore duplicate dbg config %d\n",
 934                                         conf->id);
 935                                 break;
 936                         }
 937
 938                         if (conf->usniffer)
 939                                 usniffer_req = true;
 940
 941                         IWL_INFO(drv, "Found debug configuration: %d\n",
 942                                  conf->id);
 943
 944                         pieces->dbg_conf_tlv[conf->id] = conf;
 945                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 946                         break;
 947                         }
 948                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 949                         struct iwl_fw_dbg_trigger_tlv *trigger =
 950                                 (void *)tlv_data;
 951                         u32 trigger_id = le32_to_cpu(trigger->id);
 952
 953                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg.trigger_tlv)) {
 954                                 IWL_ERR(drv,
 955                                         "Skip unknown trigger: %u\n",
 956                                         trigger->id);
 957                                 break;
 958                         }
 959
 960                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 961                                 IWL_ERR(drv,
 962                                         "Ignore duplicate dbg trigger %u\n",
 963                                         trigger->id);
 964                                 break;
 965                         }
 966
 967                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
 968
 969                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
 970                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
 971                         break;
 972                         }
 973                 case IWL_UCODE_TLV_FW_DBG_DUMP_LST: {
 974                         if (tlv_len != sizeof(u32)) {
 975                                 IWL_ERR(drv,
 976                                         "dbg lst mask size incorrect, skip\n");
 977                                 break;
 978                         }
 979
 980                         drv->fw.dbg.dump_mask =
 981                                 le32_to_cpup((__le32 *)tlv_data);
 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_FW_GSCAN_CAPA:
1020                         /* ignored */
1021                         break;
1022                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1023                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1024                                 (void *)tlv_data;
1025                         size_t size;
1026                         struct iwl_fw_dbg_mem_seg_tlv *n;
1027
1028                         if (tlv_len != (sizeof(*dbg_mem)))
1029                                 goto invalid_tlv_len;
1030
1031                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1032                                        dbg_mem->data_type);
1033
1034                         size = sizeof(*pieces->dbg_mem_tlv) *
1035                                (pieces->n_mem_tlv + 1);
1036                         n = krealloc(pieces->dbg_mem_tlv, size, GFP_KERNEL);
1037                         if (!n)
1038                                 return -ENOMEM;
1039                         pieces->dbg_mem_tlv = n;
1040                         pieces->dbg_mem_tlv[pieces->n_mem_tlv] = *dbg_mem;
1041                         pieces->n_mem_tlv++;
1042                         break;
1043                         }
1044                 case IWL_UCODE_TLV_IML: {
1045                         drv->fw.iml_len = tlv_len;
1046                         drv->fw.iml = kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1047                         if (!drv->fw.iml)
1048                                 return -ENOMEM;
1049                         break;
1050                         }
1051                 case IWL_UCODE_TLV_FW_RECOVERY_INFO: {
1052                         struct {
1053                                 __le32 buf_addr;
1054                                 __le32 buf_size;
1055                         } *recov_info = (void *)tlv_data;
1056
1057                         if (tlv_len != sizeof(*recov_info))
1058                                 goto invalid_tlv_len;
1059                         capa->error_log_addr =
1060                                 le32_to_cpu(recov_info->buf_addr);
1061                         capa->error_log_size =
1062                                 le32_to_cpu(recov_info->buf_size);
1063                         }
1064                         break;
1065                 case IWL_UCODE_TLV_FW_FSEQ_VERSION: {
1066                         struct {
1067                                 u8 version[32];
1068                                 u8 sha1[20];
1069                         } *fseq_ver = (void *)tlv_data;
1070
1071                         if (tlv_len != sizeof(*fseq_ver))
1072                                 goto invalid_tlv_len;
1073                         IWL_INFO(drv, "TLV_FW_FSEQ_VERSION: %s\n",
1074                                  fseq_ver->version);
1075                         }
1076                         break;
1077                 case IWL_UCODE_TLV_FW_NUM_STATIONS:
1078                         if (tlv_len != sizeof(u32))
1079                                 goto invalid_tlv_len;
1080                         if (le32_to_cpup((__le32 *)tlv_data) >
1081                             IWL_MVM_STATION_COUNT_MAX) {
1082                                 IWL_ERR(drv,
1083                                         "%d is an invalid number of station\n",
1084                                         le32_to_cpup((__le32 *)tlv_data));
1085                                 goto tlv_error;
1086                         }
1087                         capa->num_stations =
1088                                 le32_to_cpup((__le32 *)tlv_data);
1089                         break;
1090                 case IWL_UCODE_TLV_UMAC_DEBUG_ADDRS: {
1091                         struct iwl_umac_debug_addrs *dbg_ptrs =
1092                                 (void *)tlv_data;
1093
1094                         if (tlv_len != sizeof(*dbg_ptrs))
1095                                 goto invalid_tlv_len;
1096                         if (drv->trans->trans_cfg->device_family <
1097                             IWL_DEVICE_FAMILY_22000)
1098                                 break;
1099                         drv->trans->dbg.umac_error_event_table =
1100                                 le32_to_cpu(dbg_ptrs->error_info_addr) &
1101                                 ~FW_ADDR_CACHE_CONTROL;
1102                         drv->trans->dbg.error_event_table_tlv_status |=
1103                                 IWL_ERROR_EVENT_TABLE_UMAC;
1104                         break;
1105                         }
1106                 case IWL_UCODE_TLV_LMAC_DEBUG_ADDRS: {
1107                         struct iwl_lmac_debug_addrs *dbg_ptrs =
1108                                 (void *)tlv_data;
1109
1110                         if (tlv_len != sizeof(*dbg_ptrs))
1111                                 goto invalid_tlv_len;
1112                         if (drv->trans->trans_cfg->device_family <
1113                             IWL_DEVICE_FAMILY_22000)
1114                                 break;
1115                         drv->trans->dbg.lmac_error_event_table[0] =
1116                                 le32_to_cpu(dbg_ptrs->error_event_table_ptr) &
1117                                 ~FW_ADDR_CACHE_CONTROL;
1118                         drv->trans->dbg.error_event_table_tlv_status |=
1119                                 IWL_ERROR_EVENT_TABLE_LMAC1;
1120                         break;
1121                         }
1122                 case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
1123                 case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
1124                 case IWL_UCODE_TLV_TYPE_HCMD:
1125                 case IWL_UCODE_TLV_TYPE_REGIONS:
1126                 case IWL_UCODE_TLV_TYPE_TRIGGERS:
1127                         if (iwlwifi_mod_params.enable_ini)
1128                                 iwl_dbg_tlv_alloc(drv->trans, tlv, false);
1129                         break;
1130                 case IWL_UCODE_TLV_CMD_VERSIONS:
1131                         if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
1132                                 IWL_ERR(drv,
1133                                         "Invalid length for command versions: %u\n",
1134                                         tlv_len);
1135                                 tlv_len /= sizeof(struct iwl_fw_cmd_version);
1136                                 tlv_len *= sizeof(struct iwl_fw_cmd_version);
1137                         }
1138                         if (WARN_ON(capa->cmd_versions))
1139                                 return -EINVAL;
1140                         capa->cmd_versions = kmemdup(tlv_data, tlv_len,
1141                                                      GFP_KERNEL);
1142                         if (!capa->cmd_versions)
1143                                 return -ENOMEM;
1144                         capa->n_cmd_versions =
1145                                 tlv_len / sizeof(struct iwl_fw_cmd_version);
1146                         break;
1147                 case IWL_UCODE_TLV_PHY_INTEGRATION_VERSION:
1148                         if (drv->fw.phy_integration_ver) {
1149                                 IWL_ERR(drv,
1150                                         "phy integration str ignored, already exists\n");
1151                                 break;
1152                         }
1153
1154                         drv->fw.phy_integration_ver =
1155                                 kmemdup(tlv_data, tlv_len, GFP_KERNEL);
1156                         if (!drv->fw.phy_integration_ver)
1157                                 return -ENOMEM;
1158                         drv->fw.phy_integration_ver_len = tlv_len;
1159                         break;
1160                 default:
1161                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1162                         break;
1163                 }
1164         }
1165
1166         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1167             usniffer_req && !*usniffer_images) {
1168                 IWL_ERR(drv,
1169                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1170                 return -EINVAL;
1171         }
1172
1173         if (len) {
1174                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1175                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1176                 return -EINVAL;
1177         }
1178
1179         return 0;
1180
1181  invalid_tlv_len:
1182         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1183  tlv_error:
1184         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1185
1186         return -EINVAL;
1187 }
1188
1189 static int iwl_alloc_ucode(struct iwl_drv *drv,
1190                            struct iwl_firmware_pieces *pieces,
1191                            enum iwl_ucode_type type)
1192 {
1193         int i;
1194         struct fw_desc *sec;
1195
1196         sec = kcalloc(pieces->img[type].sec_counter, sizeof(*sec), GFP_KERNEL);
1197         if (!sec)
1198                 return -ENOMEM;
1199         drv->fw.img[type].sec = sec;
1200         drv->fw.img[type].num_sec = pieces->img[type].sec_counter;
1201
1202         for (i = 0; i < pieces->img[type].sec_counter; i++)
1203                 if (iwl_alloc_fw_desc(drv, &sec[i], get_sec(pieces, type, i)))
1204                         return -ENOMEM;
1205
1206         return 0;
1207 }
1208
1209 static int validate_sec_sizes(struct iwl_drv *drv,
1210                               struct iwl_firmware_pieces *pieces,
1211                               const struct iwl_cfg *cfg)
1212 {
1213         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %zd\n",
1214                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1215                              IWL_UCODE_SECTION_INST));
1216         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %zd\n",
1217                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1218                              IWL_UCODE_SECTION_DATA));
1219         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %zd\n",
1220                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1221         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %zd\n",
1222                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1223
1224         /* Verify that uCode images will fit in card's SRAM. */
1225         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1226             cfg->max_inst_size) {
1227                 IWL_ERR(drv, "uCode instr len %zd too large to fit in\n",
1228                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1229                                      IWL_UCODE_SECTION_INST));
1230                 return -1;
1231         }
1232
1233         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1234             cfg->max_data_size) {
1235                 IWL_ERR(drv, "uCode data len %zd too large to fit in\n",
1236                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1237                                      IWL_UCODE_SECTION_DATA));
1238                 return -1;
1239         }
1240
1241         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1242              cfg->max_inst_size) {
1243                 IWL_ERR(drv, "uCode init instr len %zd too large to fit in\n",
1244                         get_sec_size(pieces, IWL_UCODE_INIT,
1245                                      IWL_UCODE_SECTION_INST));
1246                 return -1;
1247         }
1248
1249         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1250             cfg->max_data_size) {
1251                 IWL_ERR(drv, "uCode init data len %zd too large to fit in\n",
1252                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1253                                      IWL_UCODE_SECTION_DATA));
1254                 return -1;
1255         }
1256         return 0;
1257 }
1258
1259 static struct iwl_op_mode *
1260 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1261 {
1262         const struct iwl_op_mode_ops *ops = op->ops;
1263         struct dentry *dbgfs_dir = NULL;
1264         struct iwl_op_mode *op_mode = NULL;
1265
1266 #ifdef CONFIG_IWLWIFI_DEBUGFS
1267         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1268                                                 drv->dbgfs_drv);
1269         dbgfs_dir = drv->dbgfs_op_mode;
1270 #endif
1271
1272         op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
1273
1274 #ifdef CONFIG_IWLWIFI_DEBUGFS
1275         if (!op_mode) {
1276                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1277                 drv->dbgfs_op_mode = NULL;
1278         }
1279 #endif
1280
1281         return op_mode;
1282 }
1283
1284 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1285 {
1286         /* op_mode can be NULL if its start failed */
1287         if (drv->op_mode) {
1288                 iwl_op_mode_stop(drv->op_mode);
1289                 drv->op_mode = NULL;
1290
1291 #ifdef CONFIG_IWLWIFI_DEBUGFS
1292                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1293                 drv->dbgfs_op_mode = NULL;
1294 #endif
1295         }
1296 }
1297
1298 /*
1299  * iwl_req_fw_callback - callback when firmware was loaded
1300  *
1301  * If loaded successfully, copies the firmware into buffers
1302  * for the card to fetch (via DMA).
1303  */
1304 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1305 {
1306         struct iwl_drv *drv = context;
1307         struct iwl_fw *fw = &drv->fw;
1308         struct iwl_ucode_header *ucode;
1309         struct iwlwifi_opmode_table *op;
1310         int err;
1311         struct iwl_firmware_pieces *pieces;
1312         const unsigned int api_max = drv->trans->cfg->ucode_api_max;
1313         const unsigned int api_min = drv->trans->cfg->ucode_api_min;
1314         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1315         u32 api_ver;
1316         int i;
1317         bool load_module = false;
1318         bool usniffer_images = false;
1319
1320         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1321         fw->ucode_capa.standard_phy_calibration_size =
1322                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1323         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1324         fw->ucode_capa.num_stations = IWL_MVM_STATION_COUNT_MAX;
1325         /* dump all fw memory areas by default */
1326         fw->dbg.dump_mask = 0xffffffff;
1327
1328         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1329         if (!pieces)
1330                 goto out_free_fw;
1331
1332         if (!ucode_raw)
1333                 goto try_again;
1334
1335         IWL_DEBUG_FW_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1336                           drv->firmware_name, ucode_raw->size);
1337
1338         /* Make sure that we got at least the API version number */
1339         if (ucode_raw->size < 4) {
1340                 IWL_ERR(drv, "File size way too small!\n");
1341                 goto try_again;
1342         }
1343
1344         /* Data from ucode file:  header followed by uCode images */
1345         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1346
1347         if (ucode->ver)
1348                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1349         else
1350                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1351                                              &fw->ucode_capa, &usniffer_images);
1352
1353         if (err)
1354                 goto try_again;
1355
1356         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1357                 api_ver = drv->fw.ucode_ver;
1358         else
1359                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1360
1361         /*
1362          * api_ver should match the api version forming part of the
1363          * firmware filename ... but we don't check for that and only rely
1364          * on the API version read from firmware header from here on forward
1365          */
1366         if (api_ver < api_min || api_ver > api_max) {
1367                 IWL_ERR(drv,
1368                         "Driver unable to support your firmware API. "
1369                         "Driver supports v%u, firmware is v%u.\n",
1370                         api_max, api_ver);
1371                 goto try_again;
1372         }
1373
1374         /*
1375          * In mvm uCode there is no difference between data and instructions
1376          * sections.
1377          */
1378         if (fw->type == IWL_FW_DVM && validate_sec_sizes(drv, pieces,
1379                                                          drv->trans->cfg))
1380                 goto try_again;
1381
1382         /* Allocate ucode buffers for card's bus-master loading ... */
1383
1384         /* Runtime instructions and 2 copies of data:
1385          * 1) unmodified from disk
1386          * 2) backup cache for save/restore during power-downs
1387          */
1388         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1389                 if (iwl_alloc_ucode(drv, pieces, i))
1390                         goto out_free_fw;
1391
1392         if (pieces->dbg_dest_tlv_init) {
1393                 size_t dbg_dest_size = sizeof(*drv->fw.dbg.dest_tlv) +
1394                         sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1395                         drv->fw.dbg.n_dest_reg;
1396
1397                 drv->fw.dbg.dest_tlv = kmalloc(dbg_dest_size, GFP_KERNEL);
1398
1399                 if (!drv->fw.dbg.dest_tlv)
1400                         goto out_free_fw;
1401
1402                 if (*pieces->dbg_dest_ver == 0) {
1403                         memcpy(drv->fw.dbg.dest_tlv, pieces->dbg_dest_tlv_v1,
1404                                dbg_dest_size);
1405                 } else {
1406                         struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv =
1407                                 drv->fw.dbg.dest_tlv;
1408
1409                         dest_tlv->version = pieces->dbg_dest_tlv->version;
1410                         dest_tlv->monitor_mode =
1411                                 pieces->dbg_dest_tlv->monitor_mode;
1412                         dest_tlv->size_power =
1413                                 pieces->dbg_dest_tlv->size_power;
1414                         dest_tlv->wrap_count =
1415                                 pieces->dbg_dest_tlv->wrap_count;
1416                         dest_tlv->write_ptr_reg =
1417                                 pieces->dbg_dest_tlv->write_ptr_reg;
1418                         dest_tlv->base_shift =
1419                                 pieces->dbg_dest_tlv->base_shift;
1420                         memcpy(dest_tlv->reg_ops,
1421                                pieces->dbg_dest_tlv->reg_ops,
1422                                sizeof(drv->fw.dbg.dest_tlv->reg_ops[0]) *
1423                                drv->fw.dbg.n_dest_reg);
1424
1425                         /* In version 1 of the destination tlv, which is
1426                          * relevant for internal buffer exclusively,
1427                          * the base address is part of given with the length
1428                          * of the buffer, and the size shift is give instead of
1429                          * end shift. We now store these values in base_reg,
1430                          * and end shift, and when dumping the data we'll
1431                          * manipulate it for extracting both the length and
1432                          * base address */
1433                         dest_tlv->base_reg = pieces->dbg_dest_tlv->cfg_reg;
1434                         dest_tlv->end_shift =
1435                                 pieces->dbg_dest_tlv->size_shift;
1436                 }
1437         }
1438
1439         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.conf_tlv); i++) {
1440                 if (pieces->dbg_conf_tlv[i]) {
1441                         drv->fw.dbg.conf_tlv[i] =
1442                                 kmemdup(pieces->dbg_conf_tlv[i],
1443                                         pieces->dbg_conf_tlv_len[i],
1444                                         GFP_KERNEL);
1445                         if (!drv->fw.dbg.conf_tlv[i])
1446                                 goto out_free_fw;
1447                 }
1448         }
1449
1450         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1451
1452         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1453                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1454         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1455         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1456                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1457         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1458                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1459         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1460                 sizeof(struct iwl_fw_dbg_trigger_stats);
1461         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1462                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1463         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1464                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1465         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1466                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1467         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1468                 sizeof(struct iwl_fw_dbg_trigger_ba);
1469         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1470                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1471
1472         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg.trigger_tlv); i++) {
1473                 if (pieces->dbg_trigger_tlv[i]) {
1474                         /*
1475                          * If the trigger isn't long enough, WARN and exit.
1476                          * Someone is trying to debug something and he won't
1477                          * be able to catch the bug he is trying to chase.
1478                          * We'd better be noisy to be sure he knows what's
1479                          * going on.
1480                          */
1481                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1482                                     (trigger_tlv_sz[i] +
1483                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1484                                 goto out_free_fw;
1485                         drv->fw.dbg.trigger_tlv_len[i] =
1486                                 pieces->dbg_trigger_tlv_len[i];
1487                         drv->fw.dbg.trigger_tlv[i] =
1488                                 kmemdup(pieces->dbg_trigger_tlv[i],
1489                                         drv->fw.dbg.trigger_tlv_len[i],
1490                                         GFP_KERNEL);
1491                         if (!drv->fw.dbg.trigger_tlv[i])
1492                                 goto out_free_fw;
1493                 }
1494         }
1495
1496         /* Now that we can no longer fail, copy information */
1497
1498         drv->fw.dbg.mem_tlv = pieces->dbg_mem_tlv;
1499         pieces->dbg_mem_tlv = NULL;
1500         drv->fw.dbg.n_mem_tlv = pieces->n_mem_tlv;
1501
1502         /*
1503          * The (size - 16) / 12 formula is based on the information recorded
1504          * for each event, which is of mode 1 (including timestamp) for all
1505          * new microcodes that include this information.
1506          */
1507         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1508         if (pieces->init_evtlog_size)
1509                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1510         else
1511                 fw->init_evtlog_size =
1512                         drv->trans->trans_cfg->base_params->max_event_log_size;
1513         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1514         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1515         if (pieces->inst_evtlog_size)
1516                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1517         else
1518                 fw->inst_evtlog_size =
1519                         drv->trans->trans_cfg->base_params->max_event_log_size;
1520         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1521
1522         /*
1523          * figure out the offset of chain noise reset and gain commands
1524          * base on the size of standard phy calibration commands table size
1525          */
1526         if (fw->ucode_capa.standard_phy_calibration_size >
1527             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1528                 fw->ucode_capa.standard_phy_calibration_size =
1529                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1530
1531         /* We have our copies now, allow OS release its copies */
1532         release_firmware(ucode_raw);
1533
1534         mutex_lock(&iwlwifi_opmode_table_mtx);
1535         switch (fw->type) {
1536         case IWL_FW_DVM:
1537                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1538                 break;
1539         default:
1540                 WARN(1, "Invalid fw type %d\n", fw->type);
1541                 fallthrough;
1542         case IWL_FW_MVM:
1543                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1544                 break;
1545         }
1546
1547         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1548                  drv->fw.fw_version, op->name);
1549
1550         iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
1551
1552         /* add this device to the list of devices using this op_mode */
1553         list_add_tail(&drv->list, &op->drv);
1554
1555         if (op->ops) {
1556                 drv->op_mode = _iwl_op_mode_start(drv, op);
1557
1558                 if (!drv->op_mode) {
1559                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1560                         goto out_unbind;
1561                 }
1562         } else {
1563                 load_module = true;
1564         }
1565         mutex_unlock(&iwlwifi_opmode_table_mtx);
1566
1567         /*
1568          * Complete the firmware request last so that
1569          * a driver unbind (stop) doesn't run while we
1570          * are doing the start() above.
1571          */
1572         complete(&drv->request_firmware_complete);
1573
1574         /*
1575          * Load the module last so we don't block anything
1576          * else from proceeding if the module fails to load
1577          * or hangs loading.
1578          */
1579         if (load_module) {
1580                 request_module("%s", op->name);
1581 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1582                 if (err)
1583                         IWL_ERR(drv,
1584                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1585                                 op->name, err);
1586 #endif
1587         }
1588         goto free;
1589
1590  try_again:
1591         /* try next, if any */
1592         release_firmware(ucode_raw);
1593         if (iwl_request_firmware(drv, false))
1594                 goto out_unbind;
1595         goto free;
1596
1597  out_free_fw:
1598         release_firmware(ucode_raw);
1599  out_unbind:
1600         complete(&drv->request_firmware_complete);
1601         device_release_driver(drv->trans->dev);
1602  free:
1603         if (pieces) {
1604                 for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
1605                         kfree(pieces->img[i].sec);
1606                 kfree(pieces->dbg_mem_tlv);
1607                 kfree(pieces);
1608         }
1609 }
1610
1611 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
1612 {
1613         struct iwl_drv *drv;
1614         int ret;
1615
1616         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1617         if (!drv) {
1618                 ret = -ENOMEM;
1619                 goto err;
1620         }
1621
1622         drv->trans = trans;
1623         drv->dev = trans->dev;
1624
1625         init_completion(&drv->request_firmware_complete);
1626         INIT_LIST_HEAD(&drv->list);
1627
1628 #ifdef CONFIG_IWLWIFI_DEBUGFS
1629         /* Create the device debugfs entries. */
1630         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1631                                             iwl_dbgfs_root);
1632
1633         /* Create transport layer debugfs dir */
1634         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1635 #endif
1636
1637         drv->trans->dbg.domains_bitmap = IWL_TRANS_FW_DBG_DOMAIN(drv->trans);
1638
1639         ret = iwl_request_firmware(drv, true);
1640         if (ret) {
1641                 IWL_ERR(trans, "Couldn't request the fw\n");
1642                 goto err_fw;
1643         }
1644
1645         return drv;
1646
1647 err_fw:
1648 #ifdef CONFIG_IWLWIFI_DEBUGFS
1649         debugfs_remove_recursive(drv->dbgfs_drv);
1650         iwl_dbg_tlv_free(drv->trans);
1651 #endif
1652         kfree(drv);
1653 err:
1654         return ERR_PTR(ret);
1655 }
1656
1657 void iwl_drv_stop(struct iwl_drv *drv)
1658 {
1659         wait_for_completion(&drv->request_firmware_complete);
1660
1661         _iwl_op_mode_stop(drv);
1662
1663         iwl_dealloc_ucode(drv);
1664
1665         mutex_lock(&iwlwifi_opmode_table_mtx);
1666         /*
1667          * List is empty (this item wasn't added)
1668          * when firmware loading failed -- in that
1669          * case we can't remove it from any list.
1670          */
1671         if (!list_empty(&drv->list))
1672                 list_del(&drv->list);
1673         mutex_unlock(&iwlwifi_opmode_table_mtx);
1674
1675 #ifdef CONFIG_IWLWIFI_DEBUGFS
1676         drv->trans->ops->debugfs_cleanup(drv->trans);
1677
1678         debugfs_remove_recursive(drv->dbgfs_drv);
1679 #endif
1680
1681         iwl_dbg_tlv_free(drv->trans);
1682
1683         kfree(drv);
1684 }
1685
1686
1687 /* shared module parameters */
1688 struct iwl_mod_params iwlwifi_mod_params = {
1689         .fw_restart = true,
1690         .bt_coex_active = true,
1691         .power_level = IWL_POWER_INDEX_1,
1692         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1693         .enable_ini = true,
1694         /* the rest are 0 by default */
1695 };
1696 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1697
1698 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1699 {
1700         int i;
1701         struct iwl_drv *drv;
1702         struct iwlwifi_opmode_table *op;
1703
1704         mutex_lock(&iwlwifi_opmode_table_mtx);
1705         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1706                 op = &iwlwifi_opmode_table[i];
1707                 if (strcmp(op->name, name))
1708                         continue;
1709                 op->ops = ops;
1710                 /* TODO: need to handle exceptional case */
1711                 list_for_each_entry(drv, &op->drv, list)
1712                         drv->op_mode = _iwl_op_mode_start(drv, op);
1713
1714                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1715                 return 0;
1716         }
1717         mutex_unlock(&iwlwifi_opmode_table_mtx);
1718         return -EIO;
1719 }
1720 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1721
1722 void iwl_opmode_deregister(const char *name)
1723 {
1724         int i;
1725         struct iwl_drv *drv;
1726
1727         mutex_lock(&iwlwifi_opmode_table_mtx);
1728         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1729                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1730                         continue;
1731                 iwlwifi_opmode_table[i].ops = NULL;
1732
1733                 /* call the stop routine for all devices */
1734                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1735                         _iwl_op_mode_stop(drv);
1736
1737                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1738                 return;
1739         }
1740         mutex_unlock(&iwlwifi_opmode_table_mtx);
1741 }
1742 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1743
1744 static int __init iwl_drv_init(void)
1745 {
1746         int i, err;
1747
1748         mutex_init(&iwlwifi_opmode_table_mtx);
1749
1750         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1751                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1752
1753         pr_info(DRV_DESCRIPTION "\n");
1754
1755 #ifdef CONFIG_IWLWIFI_DEBUGFS
1756         /* Create the root of iwlwifi debugfs subsystem. */
1757         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1758 #endif
1759
1760         err = iwl_pci_register_driver();
1761         if (err)
1762                 goto cleanup_debugfs;
1763
1764         return 0;
1765
1766 cleanup_debugfs:
1767 #ifdef CONFIG_IWLWIFI_DEBUGFS
1768         debugfs_remove_recursive(iwl_dbgfs_root);
1769 #endif
1770         return err;
1771 }
1772 module_init(iwl_drv_init);
1773
1774 static void __exit iwl_drv_exit(void)
1775 {
1776         iwl_pci_unregister_driver();
1777
1778 #ifdef CONFIG_IWLWIFI_DEBUGFS
1779         debugfs_remove_recursive(iwl_dbgfs_root);
1780 #endif
1781 }
1782 module_exit(iwl_drv_exit);
1783
1784 #ifdef CONFIG_IWLWIFI_DEBUG
1785 module_param_named(debug, iwlwifi_mod_params.debug_level, uint, 0644);
1786 MODULE_PARM_DESC(debug, "debug output mask");
1787 #endif
1788
1789 module_param_named(swcrypto, iwlwifi_mod_params.swcrypto, int, 0444);
1790 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1791 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, 0444);
1792 MODULE_PARM_DESC(11n_disable,
1793         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1794 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size, int, 0444);
1795 MODULE_PARM_DESC(amsdu_size,
1796                  "amsdu size 0: 12K for multi Rx queue devices, 2K for AX210 devices, "
1797                  "4K for other devices 1:4K 2:8K 3:12K (16K buffers) 4: 2K (default 0)");
1798 module_param_named(fw_restart, iwlwifi_mod_params.fw_restart, bool, 0444);
1799 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1800
1801 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
1802 MODULE_PARM_DESC(nvm_file, "NVM file name");
1803
1804 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, uint, 0644);
1805 MODULE_PARM_DESC(uapsd_disable,
1806                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1807 module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
1808                    bool, S_IRUGO | S_IWUSR);
1809 MODULE_PARM_DESC(enable_ini,
1810                  "Enable debug INI TLV FW debug infrastructure (default: true");
1811
1812 /*
1813  * set bt_coex_active to true, uCode will do kill/defer
1814  * every time the priority line is asserted (BT is sending signals on the
1815  * priority line in the PCIx).
1816  * set bt_coex_active to false, uCode will ignore the BT activity and
1817  * perform the normal operation
1818  *
1819  * User might experience transmit issue on some platform due to WiFi/BT
1820  * co-exist problem. The possible behaviors are:
1821  *   Able to scan and finding all the available AP
1822  *   Not able to associate with any AP
1823  * On those platforms, WiFi communication can be restored by set
1824  * "bt_coex_active" module parameter to "false"
1825  *
1826  * default: bt_coex_active = true (BT_COEX_ENABLE)
1827  */
1828 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1829                    bool, 0444);
1830 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1831
1832 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, 0444);
1833 MODULE_PARM_DESC(led_mode, "0=system default, "
1834                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1835
1836 module_param_named(power_save, iwlwifi_mod_params.power_save, bool, 0444);
1837 MODULE_PARM_DESC(power_save,
1838                  "enable WiFi power management (default: disable)");
1839
1840 module_param_named(power_level, iwlwifi_mod_params.power_level, int, 0444);
1841 MODULE_PARM_DESC(power_level,
1842                  "default power save level (range from 1 - 5, default: 1)");
1843
1844 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
1845 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
1846
1847 module_param_named(remove_when_gone,
1848                    iwlwifi_mod_params.remove_when_gone, bool,
1849                    0444);
1850 MODULE_PARM_DESC(remove_when_gone,
1851                  "Remove dev from PCIe bus if it is deemed inaccessible (default: false)");
1852
1853 module_param_named(disable_11ax, iwlwifi_mod_params.disable_11ax, bool,
1854                    S_IRUGO);
1855 MODULE_PARM_DESC(disable_11ax, "Disable HE capabilities (default: false)");