drivers/net/wireless/intel/iwlwifi/mvm/fw.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) 2012 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
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  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  23  * USA
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  26  * in the file called COPYING.
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  28  * Contact Information:
  29  *  Intel Linux Wireless <linuxwifi@intel.com>
  30  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
  32  * BSD LICENSE
  33  *
  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  36  * All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  *
  42  *  * Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  *  * Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
  47  *    distribution.
  48  *  * Neither the name Intel Corporation nor the names of its
  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  58  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  59  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65 #include <net/mac80211.h>
  66
  67 #include "iwl-trans.h"
  68 #include "iwl-op-mode.h"
  69 #include "iwl-fw.h"
  70 #include "iwl-debug.h"
  71 #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
  72 #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
  73 #include "iwl-prph.h"
  74 #include "iwl-eeprom-parse.h"
  75
  76 #include "mvm.h"
  77 #include "fw-dbg.h"
  78 #include "iwl-phy-db.h"
  79
  80 #define MVM_UCODE_ALIVE_TIMEOUT HZ
  81 #define MVM_UCODE_CALIB_TIMEOUT (2*HZ)
  82
  83 #define UCODE_VALID_OK  cpu_to_le32(0x1)
  84
  85 struct iwl_mvm_alive_data {
  86         bool valid;
  87         u32 scd_base_addr;
  88 };
  89
  90 static inline const struct fw_img *
  91 iwl_get_ucode_image(struct iwl_mvm *mvm, enum iwl_ucode_type ucode_type)
  92 {
  93         if (ucode_type >= IWL_UCODE_TYPE_MAX)
  94                 return NULL;
  95
  96         return &mvm->fw->img[ucode_type];
  97 }
  98
  99 static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
 100 {
 101         struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
 102                 .valid = cpu_to_le32(valid_tx_ant),
 103         };
 104
 105         IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant);
 106         return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, 0,
 107                                     sizeof(tx_ant_cmd), &tx_ant_cmd);
 108 }
 109
 110 static void iwl_free_fw_paging(struct iwl_mvm *mvm)
 111 {
 112         int i;
 113
 114         if (!mvm->fw_paging_db[0].fw_paging_block)
 115                 return;
 116
 117         for (i = 0; i < NUM_OF_FW_PAGING_BLOCKS; i++) {
 118                 if (!mvm->fw_paging_db[i].fw_paging_block) {
 119                         IWL_DEBUG_FW(mvm,
 120                                      "Paging: block %d already freed, continue to next page\n",
 121                                      i);
 122
 123                         continue;
 124                 }
 125
 126                 __free_pages(mvm->fw_paging_db[i].fw_paging_block,
 127                              get_order(mvm->fw_paging_db[i].fw_paging_size));
 128         }
 129         kfree(mvm->trans->paging_download_buf);
 130         memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db));
 131 }
 132
 133 static int iwl_fill_paging_mem(struct iwl_mvm *mvm, const struct fw_img *image)
 134 {
 135         int sec_idx, idx;
 136         u32 offset = 0;
 137
 138         /*
 139          * find where is the paging image start point:
 140          * if CPU2 exist and it's in paging format, then the image looks like:
 141          * CPU1 sections (2 or more)
 142          * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2
 143          * CPU2 sections (not paged)
 144          * PAGING_SEPARATOR_SECTION delimiter - separate between CPU2
 145          * non paged to CPU2 paging sec
 146          * CPU2 paging CSS
 147          * CPU2 paging image (including instruction and data)
 148          */
 149         for (sec_idx = 0; sec_idx < IWL_UCODE_SECTION_MAX; sec_idx++) {
 150                 if (image->sec[sec_idx].offset == PAGING_SEPARATOR_SECTION) {
 151                         sec_idx++;
 152                         break;
 153                 }
 154         }
 155
 156         if (sec_idx >= IWL_UCODE_SECTION_MAX) {
 157                 IWL_ERR(mvm, "driver didn't find paging image\n");
 158                 iwl_free_fw_paging(mvm);
 159                 return -EINVAL;
 160         }
 161
 162         /* copy the CSS block to the dram */
 163         IWL_DEBUG_FW(mvm, "Paging: load paging CSS to FW, sec = %d\n",
 164                      sec_idx);
 165
 166         memcpy(page_address(mvm->fw_paging_db[0].fw_paging_block),
 167                image->sec[sec_idx].data,
 168                mvm->fw_paging_db[0].fw_paging_size);
 169
 170         IWL_DEBUG_FW(mvm,
 171                      "Paging: copied %d CSS bytes to first block\n",
 172                      mvm->fw_paging_db[0].fw_paging_size);
 173
 174         sec_idx++;
 175
 176         /*
 177          * copy the paging blocks to the dram
 178          * loop index start from 1 since that CSS block already copied to dram
 179          * and CSS index is 0.
 180          * loop stop at num_of_paging_blk since that last block is not full.
 181          */
 182         for (idx = 1; idx < mvm->num_of_paging_blk; idx++) {
 183                 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
 184                        image->sec[sec_idx].data + offset,
 185                        mvm->fw_paging_db[idx].fw_paging_size);
 186
 187                 IWL_DEBUG_FW(mvm,
 188                              "Paging: copied %d paging bytes to block %d\n",
 189                              mvm->fw_paging_db[idx].fw_paging_size,
 190                              idx);
 191
 192                 offset += mvm->fw_paging_db[idx].fw_paging_size;
 193         }
 194
 195         /* copy the last paging block */
 196         if (mvm->num_of_pages_in_last_blk > 0) {
 197                 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
 198                        image->sec[sec_idx].data + offset,
 199                        FW_PAGING_SIZE * mvm->num_of_pages_in_last_blk);
 200
 201                 IWL_DEBUG_FW(mvm,
 202                              "Paging: copied %d pages in the last block %d\n",
 203                              mvm->num_of_pages_in_last_blk, idx);
 204         }
 205
 206         return 0;
 207 }
 208
 209 static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
 210                                    const struct fw_img *image)
 211 {
 212         struct page *block;
 213         dma_addr_t phys = 0;
 214         int blk_idx = 0;
 215         int order, num_of_pages;
 216         int dma_enabled;
 217
 218         if (mvm->fw_paging_db[0].fw_paging_block)
 219                 return 0;
 220
 221         dma_enabled = is_device_dma_capable(mvm->trans->dev);
 222
 223         /* ensure BLOCK_2_EXP_SIZE is power of 2 of PAGING_BLOCK_SIZE */
 224         BUILD_BUG_ON(BIT(BLOCK_2_EXP_SIZE) != PAGING_BLOCK_SIZE);
 225
 226         num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;
 227         mvm->num_of_paging_blk = ((num_of_pages - 1) /
 228                                     NUM_OF_PAGE_PER_GROUP) + 1;
 229
 230         mvm->num_of_pages_in_last_blk =
 231                 num_of_pages -
 232                 NUM_OF_PAGE_PER_GROUP * (mvm->num_of_paging_blk - 1);
 233
 234         IWL_DEBUG_FW(mvm,
 235                      "Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",
 236                      mvm->num_of_paging_blk,
 237                      mvm->num_of_pages_in_last_blk);
 238
 239         /* allocate block of 4Kbytes for paging CSS */
 240         order = get_order(FW_PAGING_SIZE);
 241         block = alloc_pages(GFP_KERNEL, order);
 242         if (!block) {
 243                 /* free all the previous pages since we failed */
 244                 iwl_free_fw_paging(mvm);
 245                 return -ENOMEM;
 246         }
 247
 248         mvm->fw_paging_db[blk_idx].fw_paging_block = block;
 249         mvm->fw_paging_db[blk_idx].fw_paging_size = FW_PAGING_SIZE;
 250
 251         if (dma_enabled) {
 252                 phys = dma_map_page(mvm->trans->dev, block, 0,
 253                                     PAGE_SIZE << order, DMA_BIDIRECTIONAL);
 254                 if (dma_mapping_error(mvm->trans->dev, phys)) {
 255                         /*
 256                          * free the previous pages and the current one since
 257                          * we failed to map_page.
 258                          */
 259                         iwl_free_fw_paging(mvm);
 260                         return -ENOMEM;
 261                 }
 262                 mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
 263         } else {
 264                 mvm->fw_paging_db[blk_idx].fw_paging_phys = PAGING_ADDR_SIG |
 265                         blk_idx << BLOCK_2_EXP_SIZE;
 266         }
 267
 268         IWL_DEBUG_FW(mvm,
 269                      "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
 270                      order);
 271
 272         /*
 273          * allocate blocks in dram.
 274          * since that CSS allocated in fw_paging_db[0] loop start from index 1
 275          */
 276         for (blk_idx = 1; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
 277                 /* allocate block of PAGING_BLOCK_SIZE (32K) */
 278                 order = get_order(PAGING_BLOCK_SIZE);
 279                 block = alloc_pages(GFP_KERNEL, order);
 280                 if (!block) {
 281                         /* free all the previous pages since we failed */
 282                         iwl_free_fw_paging(mvm);
 283                         return -ENOMEM;
 284                 }
 285
 286                 mvm->fw_paging_db[blk_idx].fw_paging_block = block;
 287                 mvm->fw_paging_db[blk_idx].fw_paging_size = PAGING_BLOCK_SIZE;
 288
 289                 if (dma_enabled) {
 290                         phys = dma_map_page(mvm->trans->dev, block, 0,
 291                                             PAGE_SIZE << order,
 292                                             DMA_BIDIRECTIONAL);
 293                         if (dma_mapping_error(mvm->trans->dev, phys)) {
 294                                 /*
 295                                  * free the previous pages and the current one
 296                                  * since we failed to map_page.
 297                                  */
 298                                 iwl_free_fw_paging(mvm);
 299                                 return -ENOMEM;
 300                         }
 301                         mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
 302                 } else {
 303                         mvm->fw_paging_db[blk_idx].fw_paging_phys =
 304                                 PAGING_ADDR_SIG |
 305                                 blk_idx << BLOCK_2_EXP_SIZE;
 306                 }
 307
 308                 IWL_DEBUG_FW(mvm,
 309                              "Paging: allocated 32K bytes (order %d) for firmware paging.\n",
 310                              order);
 311         }
 312
 313         return 0;
 314 }
 315
 316 static int iwl_save_fw_paging(struct iwl_mvm *mvm,
 317                               const struct fw_img *fw)
 318 {
 319         int ret;
 320
 321         ret = iwl_alloc_fw_paging_mem(mvm, fw);
 322         if (ret)
 323                 return ret;
 324
 325         return iwl_fill_paging_mem(mvm, fw);
 326 }
 327
 328 /* send paging cmd to FW in case CPU2 has paging image */
 329 static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw)
 330 {
 331         int blk_idx;
 332         __le32 dev_phy_addr;
 333         struct iwl_fw_paging_cmd fw_paging_cmd = {
 334                 .flags =
 335                         cpu_to_le32(PAGING_CMD_IS_SECURED |
 336                                     PAGING_CMD_IS_ENABLED |
 337                                     (mvm->num_of_pages_in_last_blk <<
 338                                     PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
 339                 .block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
 340                 .block_num = cpu_to_le32(mvm->num_of_paging_blk),
 341         };
 342
 343         /* loop for for all paging blocks + CSS block */
 344         for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
 345                 dev_phy_addr =
 346                         cpu_to_le32(mvm->fw_paging_db[blk_idx].fw_paging_phys >>
 347                                     PAGE_2_EXP_SIZE);
 348                 fw_paging_cmd.device_phy_addr[blk_idx] = dev_phy_addr;
 349         }
 350
 351         return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(FW_PAGING_BLOCK_CMD,
 352                                                     IWL_ALWAYS_LONG_GROUP, 0),
 353                                     0, sizeof(fw_paging_cmd), &fw_paging_cmd);
 354 }
 355
 356 /*
 357  * Send paging item cmd to FW in case CPU2 has paging image
 358  */
 359 static int iwl_trans_get_paging_item(struct iwl_mvm *mvm)
 360 {
 361         int ret;
 362         struct iwl_fw_get_item_cmd fw_get_item_cmd = {
 363                 .item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING),
 364         };
 365
 366         struct iwl_fw_get_item_resp *item_resp;
 367         struct iwl_host_cmd cmd = {
 368                 .id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0),
 369                 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
 370                 .data = { &fw_get_item_cmd, },
 371         };
 372
 373         cmd.len[0] = sizeof(struct iwl_fw_get_item_cmd);
 374
 375         ret = iwl_mvm_send_cmd(mvm, &cmd);
 376         if (ret) {
 377                 IWL_ERR(mvm,
 378                         "Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n",
 379                         ret);
 380                 return ret;
 381         }
 382
 383         item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data;
 384         if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) {
 385                 IWL_ERR(mvm,
 386                         "Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n",
 387                         le32_to_cpu(item_resp->item_id));
 388                 ret = -EIO;
 389                 goto exit;
 390         }
 391
 392         mvm->trans->paging_download_buf = kzalloc(MAX_PAGING_IMAGE_SIZE,
 393                                                   GFP_KERNEL);
 394         if (!mvm->trans->paging_download_buf) {
 395                 ret = -ENOMEM;
 396                 goto exit;
 397         }
 398         mvm->trans->paging_req_addr = le32_to_cpu(item_resp->item_val);
 399         mvm->trans->paging_db = mvm->fw_paging_db;
 400         IWL_DEBUG_FW(mvm,
 401                      "Paging: got paging request address (paging_req_addr 0x%08x)\n",
 402                      mvm->trans->paging_req_addr);
 403
 404 exit:
 405         iwl_free_resp(&cmd);
 406
 407         return ret;
 408 }
 409
 410 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 411                          struct iwl_rx_packet *pkt, void *data)
 412 {
 413         struct iwl_mvm *mvm =
 414                 container_of(notif_wait, struct iwl_mvm, notif_wait);
 415         struct iwl_mvm_alive_data *alive_data = data;
 416         struct mvm_alive_resp_ver1 *palive1;
 417         struct mvm_alive_resp_ver2 *palive2;
 418         struct mvm_alive_resp *palive;
 419
 420         if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive1)) {
 421                 palive1 = (void *)pkt->data;
 422
 423                 mvm->support_umac_log = false;
 424                 mvm->error_event_table =
 425                         le32_to_cpu(palive1->error_event_table_ptr);
 426                 mvm->log_event_table =
 427                         le32_to_cpu(palive1->log_event_table_ptr);
 428                 alive_data->scd_base_addr = le32_to_cpu(palive1->scd_base_ptr);
 429
 430                 alive_data->valid = le16_to_cpu(palive1->status) ==
 431                                     IWL_ALIVE_STATUS_OK;
 432                 IWL_DEBUG_FW(mvm,
 433                              "Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
 434                              le16_to_cpu(palive1->status), palive1->ver_type,
 435                              palive1->ver_subtype, palive1->flags);
 436         } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive2)) {
 437                 palive2 = (void *)pkt->data;
 438
 439                 mvm->error_event_table =
 440                         le32_to_cpu(palive2->error_event_table_ptr);
 441                 mvm->log_event_table =
 442                         le32_to_cpu(palive2->log_event_table_ptr);
 443                 alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr);
 444                 mvm->umac_error_event_table =
 445                         le32_to_cpu(palive2->error_info_addr);
 446                 mvm->sf_space.addr = le32_to_cpu(palive2->st_fwrd_addr);
 447                 mvm->sf_space.size = le32_to_cpu(palive2->st_fwrd_size);
 448
 449                 alive_data->valid = le16_to_cpu(palive2->status) ==
 450                                     IWL_ALIVE_STATUS_OK;
 451                 if (mvm->umac_error_event_table)
 452                         mvm->support_umac_log = true;
 453
 454                 IWL_DEBUG_FW(mvm,
 455                              "Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
 456                              le16_to_cpu(palive2->status), palive2->ver_type,
 457                              palive2->ver_subtype, palive2->flags);
 458
 459                 IWL_DEBUG_FW(mvm,
 460                              "UMAC version: Major - 0x%x, Minor - 0x%x\n",
 461                              palive2->umac_major, palive2->umac_minor);
 462         } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
 463                 palive = (void *)pkt->data;
 464
 465                 mvm->error_event_table =
 466                         le32_to_cpu(palive->error_event_table_ptr);
 467                 mvm->log_event_table =
 468                         le32_to_cpu(palive->log_event_table_ptr);
 469                 alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr);
 470                 mvm->umac_error_event_table =
 471                         le32_to_cpu(palive->error_info_addr);
 472                 mvm->sf_space.addr = le32_to_cpu(palive->st_fwrd_addr);
 473                 mvm->sf_space.size = le32_to_cpu(palive->st_fwrd_size);
 474
 475                 alive_data->valid = le16_to_cpu(palive->status) ==
 476                                     IWL_ALIVE_STATUS_OK;
 477                 if (mvm->umac_error_event_table)
 478                         mvm->support_umac_log = true;
 479
 480                 IWL_DEBUG_FW(mvm,
 481                              "Alive VER3 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
 482                              le16_to_cpu(palive->status), palive->ver_type,
 483                              palive->ver_subtype, palive->flags);
 484
 485                 IWL_DEBUG_FW(mvm,
 486                              "UMAC version: Major - 0x%x, Minor - 0x%x\n",
 487                              le32_to_cpu(palive->umac_major),
 488                              le32_to_cpu(palive->umac_minor));
 489         }
 490
 491         return true;
 492 }
 493
 494 static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
 495                                   struct iwl_rx_packet *pkt, void *data)
 496 {
 497         struct iwl_phy_db *phy_db = data;
 498
 499         if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
 500                 WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
 501                 return true;
 502         }
 503
 504         WARN_ON(iwl_phy_db_set_section(phy_db, pkt, GFP_ATOMIC));
 505
 506         return false;
 507 }
 508
 509 static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
 510                                          enum iwl_ucode_type ucode_type)
 511 {
 512         struct iwl_notification_wait alive_wait;
 513         struct iwl_mvm_alive_data alive_data;
 514         const struct fw_img *fw;
 515         int ret, i;
 516         enum iwl_ucode_type old_type = mvm->cur_ucode;
 517         static const u16 alive_cmd[] = { MVM_ALIVE };
 518         struct iwl_sf_region st_fwrd_space;
 519
 520         if (ucode_type == IWL_UCODE_REGULAR &&
 521             iwl_fw_dbg_conf_usniffer(mvm->fw, FW_DBG_START_FROM_ALIVE))
 522                 fw = iwl_get_ucode_image(mvm, IWL_UCODE_REGULAR_USNIFFER);
 523         else
 524                 fw = iwl_get_ucode_image(mvm, ucode_type);
 525         if (WARN_ON(!fw))
 526                 return -EINVAL;
 527         mvm->cur_ucode = ucode_type;
 528         mvm->ucode_loaded = false;
 529
 530         iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
 531                                    alive_cmd, ARRAY_SIZE(alive_cmd),
 532                                    iwl_alive_fn, &alive_data);
 533
 534         ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
 535         if (ret) {
 536                 mvm->cur_ucode = old_type;
 537                 iwl_remove_notification(&mvm->notif_wait, &alive_wait);
 538                 return ret;
 539         }
 540
 541         /*
 542          * Some things may run in the background now, but we
 543          * just wait for the ALIVE notification here.
 544          */
 545         ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
 546                                     MVM_UCODE_ALIVE_TIMEOUT);
 547         if (ret) {
 548                 if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
 549                         IWL_ERR(mvm,
 550                                 "SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
 551                                 iwl_read_prph(mvm->trans, SB_CPU_1_STATUS),
 552                                 iwl_read_prph(mvm->trans, SB_CPU_2_STATUS));
 553                 mvm->cur_ucode = old_type;
 554                 return ret;
 555         }
 556
 557         if (!alive_data.valid) {
 558                 IWL_ERR(mvm, "Loaded ucode is not valid!\n");
 559                 mvm->cur_ucode = old_type;
 560                 return -EIO;
 561         }
 562
 563         /*
 564          * update the sdio allocation according to the pointer we get in the
 565          * alive notification.
 566          */
 567         st_fwrd_space.addr = mvm->sf_space.addr;
 568         st_fwrd_space.size = mvm->sf_space.size;
 569         ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space);
 570         if (ret) {
 571                 IWL_ERR(mvm, "Failed to update SF size. ret %d\n", ret);
 572                 return ret;
 573         }
 574
 575         iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);
 576
 577         /*
 578          * configure and operate fw paging mechanism.
 579          * driver configures the paging flow only once, CPU2 paging image
 580          * included in the IWL_UCODE_INIT image.
 581          */
 582         if (fw->paging_mem_size) {
 583                 /*
 584                  * When dma is not enabled, the driver needs to copy / write
 585                  * the downloaded / uploaded page to / from the smem.
 586                  * This gets the location of the place were the pages are
 587                  * stored.
 588                  */
 589                 if (!is_device_dma_capable(mvm->trans->dev)) {
 590                         ret = iwl_trans_get_paging_item(mvm);
 591                         if (ret) {
 592                                 IWL_ERR(mvm, "failed to get FW paging item\n");
 593                                 return ret;
 594                         }
 595                 }
 596
 597                 ret = iwl_save_fw_paging(mvm, fw);
 598                 if (ret) {
 599                         IWL_ERR(mvm, "failed to save the FW paging image\n");
 600                         return ret;
 601                 }
 602
 603                 ret = iwl_send_paging_cmd(mvm, fw);
 604                 if (ret) {
 605                         IWL_ERR(mvm, "failed to send the paging cmd\n");
 606                         iwl_free_fw_paging(mvm);
 607                         return ret;
 608                 }
 609         }
 610
 611         /*
 612          * Note: all the queues are enabled as part of the interface
 613          * initialization, but in firmware restart scenarios they
 614          * could be stopped, so wake them up. In firmware restart,
 615          * mac80211 will have the queues stopped as well until the
 616          * reconfiguration completes. During normal startup, they
 617          * will be empty.
 618          */
 619
 620         memset(&mvm->queue_info, 0, sizeof(mvm->queue_info));
 621         mvm->queue_info[IWL_MVM_CMD_QUEUE].hw_queue_refcount = 1;
 622
 623         for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
 624                 atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
 625
 626         mvm->ucode_loaded = true;
 627
 628         return 0;
 629 }
 630
 631 static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
 632 {
 633         struct iwl_phy_cfg_cmd phy_cfg_cmd;
 634         enum iwl_ucode_type ucode_type = mvm->cur_ucode;
 635
 636         /* Set parameters */
 637         phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
 638         phy_cfg_cmd.calib_control.event_trigger =
 639                 mvm->fw->default_calib[ucode_type].event_trigger;
 640         phy_cfg_cmd.calib_control.flow_trigger =
 641                 mvm->fw->default_calib[ucode_type].flow_trigger;
 642
 643         IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
 644                        phy_cfg_cmd.phy_cfg);
 645
 646         return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0,
 647                                     sizeof(phy_cfg_cmd), &phy_cfg_cmd);
 648 }
 649
 650 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 651 {
 652         struct iwl_notification_wait calib_wait;
 653         static const u16 init_complete[] = {
 654                 INIT_COMPLETE_NOTIF,
 655                 CALIB_RES_NOTIF_PHY_DB
 656         };
 657         int ret;
 658
 659         lockdep_assert_held(&mvm->mutex);
 660
 661         if (WARN_ON_ONCE(mvm->calibrating))
 662                 return 0;
 663
 664         iwl_init_notification_wait(&mvm->notif_wait,
 665                                    &calib_wait,
 666                                    init_complete,
 667                                    ARRAY_SIZE(init_complete),
 668                                    iwl_wait_phy_db_entry,
 669                                    mvm->phy_db);
 670
 671         /* Will also start the device */
 672         ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
 673         if (ret) {
 674                 IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
 675                 goto error;
 676         }
 677
 678         ret = iwl_send_bt_init_conf(mvm);
 679         if (ret)
 680                 goto error;
 681
 682         /* Read the NVM only at driver load time, no need to do this twice */
 683         if (read_nvm) {
 684                 /* Read nvm */
 685                 ret = iwl_nvm_init(mvm, true);
 686                 if (ret) {
 687                         IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
 688                         goto error;
 689                 }
 690         }
 691
 692         /* In case we read the NVM from external file, load it to the NIC */
 693         if (mvm->nvm_file_name)
 694                 iwl_mvm_load_nvm_to_nic(mvm);
 695
 696         ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
 697         WARN_ON(ret);
 698
 699         /*
 700          * abort after reading the nvm in case RF Kill is on, we will complete
 701          * the init seq later when RF kill will switch to off
 702          */
 703         if (iwl_mvm_is_radio_hw_killed(mvm)) {
 704                 IWL_DEBUG_RF_KILL(mvm,
 705                                   "jump over all phy activities due to RF kill\n");
 706                 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
 707                 ret = 1;
 708                 goto out;
 709         }
 710
 711         mvm->calibrating = true;
 712
 713         /* Send TX valid antennas before triggering calibrations */
 714         ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
 715         if (ret)
 716                 goto error;
 717
 718         /*
 719          * Send phy configurations command to init uCode
 720          * to start the 16.0 uCode init image internal calibrations.
 721          */
 722         ret = iwl_send_phy_cfg_cmd(mvm);
 723         if (ret) {
 724                 IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
 725                         ret);
 726                 goto error;
 727         }
 728
 729         /*
 730          * Some things may run in the background now, but we
 731          * just wait for the calibration complete notification.
 732          */
 733         ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
 734                         MVM_UCODE_CALIB_TIMEOUT);
 735
 736         if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
 737                 IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
 738                 ret = 1;
 739         }
 740         goto out;
 741
 742 error:
 743         iwl_remove_notification(&mvm->notif_wait, &calib_wait);
 744 out:
 745         mvm->calibrating = false;
 746         if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
 747                 /* we want to debug INIT and we have no NVM - fake */
 748                 mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
 749                                         sizeof(struct ieee80211_channel) +
 750                                         sizeof(struct ieee80211_rate),
 751                                         GFP_KERNEL);
 752                 if (!mvm->nvm_data)
 753                         return -ENOMEM;
 754                 mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
 755                 mvm->nvm_data->bands[0].n_channels = 1;
 756                 mvm->nvm_data->bands[0].n_bitrates = 1;
 757                 mvm->nvm_data->bands[0].bitrates =
 758                         (void *)mvm->nvm_data->channels + 1;
 759                 mvm->nvm_data->bands[0].bitrates->hw_value = 10;
 760         }
 761
 762         return ret;
 763 }
 764
 765 static void iwl_mvm_get_shared_mem_conf(struct iwl_mvm *mvm)
 766 {
 767         struct iwl_host_cmd cmd = {
 768                 .id = SHARED_MEM_CFG,
 769                 .flags = CMD_WANT_SKB,
 770                 .data = { NULL, },
 771                 .len = { 0, },
 772         };
 773         struct iwl_rx_packet *pkt;
 774         struct iwl_shared_mem_cfg *mem_cfg;
 775         u32 i;
 776
 777         lockdep_assert_held(&mvm->mutex);
 778
 779         if (WARN_ON(iwl_mvm_send_cmd(mvm, &cmd)))
 780                 return;
 781
 782         pkt = cmd.resp_pkt;
 783         mem_cfg = (void *)pkt->data;
 784
 785         mvm->shared_mem_cfg.shared_mem_addr =
 786                 le32_to_cpu(mem_cfg->shared_mem_addr);
 787         mvm->shared_mem_cfg.shared_mem_size =
 788                 le32_to_cpu(mem_cfg->shared_mem_size);
 789         mvm->shared_mem_cfg.sample_buff_addr =
 790                 le32_to_cpu(mem_cfg->sample_buff_addr);
 791         mvm->shared_mem_cfg.sample_buff_size =
 792                 le32_to_cpu(mem_cfg->sample_buff_size);
 793         mvm->shared_mem_cfg.txfifo_addr = le32_to_cpu(mem_cfg->txfifo_addr);
 794         for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++)
 795                 mvm->shared_mem_cfg.txfifo_size[i] =
 796                         le32_to_cpu(mem_cfg->txfifo_size[i]);
 797         for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++)
 798                 mvm->shared_mem_cfg.rxfifo_size[i] =
 799                         le32_to_cpu(mem_cfg->rxfifo_size[i]);
 800         mvm->shared_mem_cfg.page_buff_addr =
 801                 le32_to_cpu(mem_cfg->page_buff_addr);
 802         mvm->shared_mem_cfg.page_buff_size =
 803                 le32_to_cpu(mem_cfg->page_buff_size);
 804         IWL_DEBUG_INFO(mvm, "SHARED MEM CFG: got memory offsets/sizes\n");
 805
 806         iwl_free_resp(&cmd);
 807 }
 808
 809 static int iwl_mvm_config_ltr(struct iwl_mvm *mvm)
 810 {
 811         struct iwl_ltr_config_cmd cmd = {
 812                 .flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
 813         };
 814
 815         if (!mvm->trans->ltr_enabled)
 816                 return 0;
 817
 818         return iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
 819                                     sizeof(cmd), &cmd);
 820 }
 821
 822 int iwl_mvm_up(struct iwl_mvm *mvm)
 823 {
 824         int ret, i;
 825         struct ieee80211_channel *chan;
 826         struct cfg80211_chan_def chandef;
 827
 828         lockdep_assert_held(&mvm->mutex);
 829
 830         ret = iwl_trans_start_hw(mvm->trans);
 831         if (ret)
 832                 return ret;
 833
 834         /*
 835          * If we haven't completed the run of the init ucode during
 836          * module loading, load init ucode now
 837          * (for example, if we were in RFKILL)
 838          */
 839         ret = iwl_run_init_mvm_ucode(mvm, false);
 840         if (ret && !iwlmvm_mod_params.init_dbg) {
 841                 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
 842                 /* this can't happen */
 843                 if (WARN_ON(ret > 0))
 844                         ret = -ERFKILL;
 845                 goto error;
 846         }
 847         if (!iwlmvm_mod_params.init_dbg) {
 848                 /*
 849                  * Stop and start the transport without entering low power
 850                  * mode. This will save the state of other components on the
 851                  * device that are triggered by the INIT firwmare (MFUART).
 852                  */
 853                 _iwl_trans_stop_device(mvm->trans, false);
 854                 ret = _iwl_trans_start_hw(mvm->trans, false);
 855                 if (ret)
 856                         goto error;
 857         }
 858
 859         if (iwlmvm_mod_params.init_dbg)
 860                 return 0;
 861
 862         ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
 863         if (ret) {
 864                 IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
 865                 goto error;
 866         }
 867
 868         iwl_mvm_get_shared_mem_conf(mvm);
 869
 870         ret = iwl_mvm_sf_update(mvm, NULL, false);
 871         if (ret)
 872                 IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");
 873
 874         mvm->fw_dbg_conf = FW_DBG_INVALID;
 875         /* if we have a destination, assume EARLY START */
 876         if (mvm->fw->dbg_dest_tlv)
 877                 mvm->fw_dbg_conf = FW_DBG_START_FROM_ALIVE;
 878         iwl_mvm_start_fw_dbg_conf(mvm, FW_DBG_START_FROM_ALIVE);
 879
 880         ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
 881         if (ret)
 882                 goto error;
 883
 884         ret = iwl_send_bt_init_conf(mvm);
 885         if (ret)
 886                 goto error;
 887
 888         /* Send phy db control command and then phy db calibration*/
 889         ret = iwl_send_phy_db_data(mvm->phy_db);
 890         if (ret)
 891                 goto error;
 892
 893         ret = iwl_send_phy_cfg_cmd(mvm);
 894         if (ret)
 895                 goto error;
 896
 897         /* init the fw <-> mac80211 STA mapping */
 898         for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
 899                 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
 900
 901         mvm->tdls_cs.peer.sta_id = IWL_MVM_STATION_COUNT;
 902
 903         /* reset quota debouncing buffer - 0xff will yield invalid data */
 904         memset(&mvm->last_quota_cmd, 0xff, sizeof(mvm->last_quota_cmd));
 905
 906         /* Add auxiliary station for scanning */
 907         ret = iwl_mvm_add_aux_sta(mvm);
 908         if (ret)
 909                 goto error;
 910
 911         /* Add all the PHY contexts */
 912         chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
 913         cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
 914         for (i = 0; i < NUM_PHY_CTX; i++) {
 915                 /*
 916                  * The channel used here isn't relevant as it's
 917                  * going to be overwritten in the other flows.
 918                  * For now use the first channel we have.
 919                  */
 920                 ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
 921                                            &chandef, 1, 1);
 922                 if (ret)
 923                         goto error;
 924         }
 925
 926         /* Initialize tx backoffs to the minimal possible */
 927         iwl_mvm_tt_tx_backoff(mvm, 0);
 928
 929         WARN_ON(iwl_mvm_config_ltr(mvm));
 930
 931         ret = iwl_mvm_power_update_device(mvm);
 932         if (ret)
 933                 goto error;
 934
 935         /*
 936          * RTNL is not taken during Ct-kill, but we don't need to scan/Tx
 937          * anyway, so don't init MCC.
 938          */
 939         if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) {
 940                 ret = iwl_mvm_init_mcc(mvm);
 941                 if (ret)
 942                         goto error;
 943         }
 944
 945         if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
 946                 mvm->scan_type = IWL_SCAN_TYPE_NOT_SET;
 947                 ret = iwl_mvm_config_scan(mvm);
 948                 if (ret)
 949                         goto error;
 950         }
 951
 952         if (iwl_mvm_is_csum_supported(mvm) &&
 953             mvm->cfg->features & NETIF_F_RXCSUM)
 954                 iwl_trans_write_prph(mvm->trans, RX_EN_CSUM, 0x3);
 955
 956         /* allow FW/transport low power modes if not during restart */
 957         if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
 958                 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
 959
 960         IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
 961         return 0;
 962  error:
 963         iwl_trans_stop_device(mvm->trans);
 964         return ret;
 965 }
 966
 967 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
 968 {
 969         int ret, i;
 970
 971         lockdep_assert_held(&mvm->mutex);
 972
 973         ret = iwl_trans_start_hw(mvm->trans);
 974         if (ret)
 975                 return ret;
 976
 977         ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN);
 978         if (ret) {
 979                 IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret);
 980                 goto error;
 981         }
 982
 983         ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
 984         if (ret)
 985                 goto error;
 986
 987         /* Send phy db control command and then phy db calibration*/
 988         ret = iwl_send_phy_db_data(mvm->phy_db);
 989         if (ret)
 990                 goto error;
 991
 992         ret = iwl_send_phy_cfg_cmd(mvm);
 993         if (ret)
 994                 goto error;
 995
 996         /* init the fw <-> mac80211 STA mapping */
 997         for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
 998                 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
 999
1000         /* Add auxiliary station for scanning */
1001         ret = iwl_mvm_add_aux_sta(mvm);
1002         if (ret)
1003                 goto error;
1004
1005         return 0;
1006  error:
1007         iwl_trans_stop_device(mvm->trans);
1008         return ret;
1009 }
1010
1011 void iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
1012                                  struct iwl_rx_cmd_buffer *rxb)
1013 {
1014         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1015         struct iwl_card_state_notif *card_state_notif = (void *)pkt->data;
1016         u32 flags = le32_to_cpu(card_state_notif->flags);
1017
1018         IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n",
1019                           (flags & HW_CARD_DISABLED) ? "Kill" : "On",
1020                           (flags & SW_CARD_DISABLED) ? "Kill" : "On",
1021                           (flags & CT_KILL_CARD_DISABLED) ?
1022                           "Reached" : "Not reached");
1023 }
1024
1025 void iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm,
1026                              struct iwl_rx_cmd_buffer *rxb)
1027 {
1028         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1029         struct iwl_mfuart_load_notif *mfuart_notif = (void *)pkt->data;
1030
1031         IWL_DEBUG_INFO(mvm,
1032                        "MFUART: installed ver: 0x%08x, external ver: 0x%08x, status: 0x%08x, duration: 0x%08x\n",
1033                        le32_to_cpu(mfuart_notif->installed_ver),
1034                        le32_to_cpu(mfuart_notif->external_ver),
1035                        le32_to_cpu(mfuart_notif->status),
1036                        le32_to_cpu(mfuart_notif->duration));
1037 }