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  * Copyright(c) 2016 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * All rights reserved.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  *
  43  *  * Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  *  * Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in
  47  *    the documentation and/or other materials provided with the
  48  *    distribution.
  49  *  * Neither the name Intel Corporation nor the names of its
  50  *    contributors may be used to endorse or promote products derived
  51  *    from this software without specific prior written permission.
  52  *
  53  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  54  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  55  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  56  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  57  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  58  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  59  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  60  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  61  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  62  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  63  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  64  *
  65  *****************************************************************************/
  66 #include <net/mac80211.h>
  67 #include <linux/netdevice.h>
  68 #include <linux/acpi.h>
  69
  70 #include "iwl-trans.h"
  71 #include "iwl-op-mode.h"
  72 #include "iwl-fw.h"
  73 #include "iwl-debug.h"
  74 #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
  75 #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
  76 #include "iwl-prph.h"
  77 #include "iwl-eeprom-parse.h"
  78
  79 #include "mvm.h"
  80 #include "fw-dbg.h"
  81 #include "iwl-phy-db.h"
  82
  83 #define MVM_UCODE_ALIVE_TIMEOUT HZ
  84 #define MVM_UCODE_CALIB_TIMEOUT (2*HZ)
  85
  86 #define UCODE_VALID_OK  cpu_to_le32(0x1)
  87
  88 struct iwl_mvm_alive_data {
  89         bool valid;
  90         u32 scd_base_addr;
  91 };
  92
  93 static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
  94 {
  95         struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
  96                 .valid = cpu_to_le32(valid_tx_ant),
  97         };
  98
  99         IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant);
 100         return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, 0,
 101                                     sizeof(tx_ant_cmd), &tx_ant_cmd);
 102 }
 103
 104 static int iwl_send_rss_cfg_cmd(struct iwl_mvm *mvm)
 105 {
 106         int i;
 107         struct iwl_rss_config_cmd cmd = {
 108                 .flags = cpu_to_le32(IWL_RSS_ENABLE),
 109                 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
 110                              IWL_RSS_HASH_TYPE_IPV4_UDP |
 111                              IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
 112                              IWL_RSS_HASH_TYPE_IPV6_TCP |
 113                              IWL_RSS_HASH_TYPE_IPV6_UDP |
 114                              IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
 115         };
 116
 117         if (mvm->trans->num_rx_queues == 1)
 118                 return 0;
 119
 120         /* Do not direct RSS traffic to Q 0 which is our fallback queue */
 121         for (i = 0; i < ARRAY_SIZE(cmd.indirection_table); i++)
 122                 cmd.indirection_table[i] =
 123                         1 + (i % (mvm->trans->num_rx_queues - 1));
 124         netdev_rss_key_fill(cmd.secret_key, sizeof(cmd.secret_key));
 125
 126         return iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd);
 127 }
 128
 129 static int iwl_mvm_send_dqa_cmd(struct iwl_mvm *mvm)
 130 {
 131         struct iwl_dqa_enable_cmd dqa_cmd = {
 132                 .cmd_queue = cpu_to_le32(IWL_MVM_DQA_CMD_QUEUE),
 133         };
 134         u32 cmd_id = iwl_cmd_id(DQA_ENABLE_CMD, DATA_PATH_GROUP, 0);
 135         int ret;
 136
 137         ret = iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, sizeof(dqa_cmd), &dqa_cmd);
 138         if (ret)
 139                 IWL_ERR(mvm, "Failed to send DQA enabling command: %d\n", ret);
 140         else
 141                 IWL_DEBUG_FW(mvm, "Working in DQA mode\n");
 142
 143         return ret;
 144 }
 145
 146 void iwl_free_fw_paging(struct iwl_mvm *mvm)
 147 {
 148         int i;
 149
 150         if (!mvm->fw_paging_db[0].fw_paging_block)
 151                 return;
 152
 153         for (i = 0; i < NUM_OF_FW_PAGING_BLOCKS; i++) {
 154                 struct iwl_fw_paging *paging = &mvm->fw_paging_db[i];
 155
 156                 if (!paging->fw_paging_block) {
 157                         IWL_DEBUG_FW(mvm,
 158                                      "Paging: block %d already freed, continue to next page\n",
 159                                      i);
 160
 161                         continue;
 162                 }
 163                 dma_unmap_page(mvm->trans->dev, paging->fw_paging_phys,
 164                                paging->fw_paging_size, DMA_BIDIRECTIONAL);
 165
 166                 __free_pages(paging->fw_paging_block,
 167                              get_order(paging->fw_paging_size));
 168                 paging->fw_paging_block = NULL;
 169         }
 170         kfree(mvm->trans->paging_download_buf);
 171         mvm->trans->paging_download_buf = NULL;
 172         mvm->trans->paging_db = NULL;
 173
 174         memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db));
 175 }
 176
 177 static int iwl_fill_paging_mem(struct iwl_mvm *mvm, const struct fw_img *image)
 178 {
 179         int sec_idx, idx;
 180         u32 offset = 0;
 181
 182         /*
 183          * find where is the paging image start point:
 184          * if CPU2 exist and it's in paging format, then the image looks like:
 185          * CPU1 sections (2 or more)
 186          * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2
 187          * CPU2 sections (not paged)
 188          * PAGING_SEPARATOR_SECTION delimiter - separate between CPU2
 189          * non paged to CPU2 paging sec
 190          * CPU2 paging CSS
 191          * CPU2 paging image (including instruction and data)
 192          */
 193         for (sec_idx = 0; sec_idx < IWL_UCODE_SECTION_MAX; sec_idx++) {
 194                 if (image->sec[sec_idx].offset == PAGING_SEPARATOR_SECTION) {
 195                         sec_idx++;
 196                         break;
 197                 }
 198         }
 199
 200         /*
 201          * If paging is enabled there should be at least 2 more sections left
 202          * (one for CSS and one for Paging data)
 203          */
 204         if (sec_idx >= ARRAY_SIZE(image->sec) - 1) {
 205                 IWL_ERR(mvm, "Paging: Missing CSS and/or paging sections\n");
 206                 iwl_free_fw_paging(mvm);
 207                 return -EINVAL;
 208         }
 209
 210         /* copy the CSS block to the dram */
 211         IWL_DEBUG_FW(mvm, "Paging: load paging CSS to FW, sec = %d\n",
 212                      sec_idx);
 213
 214         memcpy(page_address(mvm->fw_paging_db[0].fw_paging_block),
 215                image->sec[sec_idx].data,
 216                mvm->fw_paging_db[0].fw_paging_size);
 217
 218         IWL_DEBUG_FW(mvm,
 219                      "Paging: copied %d CSS bytes to first block\n",
 220                      mvm->fw_paging_db[0].fw_paging_size);
 221
 222         sec_idx++;
 223
 224         /*
 225          * copy the paging blocks to the dram
 226          * loop index start from 1 since that CSS block already copied to dram
 227          * and CSS index is 0.
 228          * loop stop at num_of_paging_blk since that last block is not full.
 229          */
 230         for (idx = 1; idx < mvm->num_of_paging_blk; idx++) {
 231                 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
 232                        image->sec[sec_idx].data + offset,
 233                        mvm->fw_paging_db[idx].fw_paging_size);
 234
 235                 IWL_DEBUG_FW(mvm,
 236                              "Paging: copied %d paging bytes to block %d\n",
 237                              mvm->fw_paging_db[idx].fw_paging_size,
 238                              idx);
 239
 240                 offset += mvm->fw_paging_db[idx].fw_paging_size;
 241         }
 242
 243         /* copy the last paging block */
 244         if (mvm->num_of_pages_in_last_blk > 0) {
 245                 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
 246                        image->sec[sec_idx].data + offset,
 247                        FW_PAGING_SIZE * mvm->num_of_pages_in_last_blk);
 248
 249                 IWL_DEBUG_FW(mvm,
 250                              "Paging: copied %d pages in the last block %d\n",
 251                              mvm->num_of_pages_in_last_blk, idx);
 252         }
 253
 254         return 0;
 255 }
 256
 257 static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
 258                                    const struct fw_img *image)
 259 {
 260         struct page *block;
 261         dma_addr_t phys = 0;
 262         int blk_idx = 0;
 263         int order, num_of_pages;
 264         int dma_enabled;
 265
 266         if (mvm->fw_paging_db[0].fw_paging_block)
 267                 return 0;
 268
 269         dma_enabled = is_device_dma_capable(mvm->trans->dev);
 270
 271         /* ensure BLOCK_2_EXP_SIZE is power of 2 of PAGING_BLOCK_SIZE */
 272         BUILD_BUG_ON(BIT(BLOCK_2_EXP_SIZE) != PAGING_BLOCK_SIZE);
 273
 274         num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;
 275         mvm->num_of_paging_blk = ((num_of_pages - 1) /
 276                                     NUM_OF_PAGE_PER_GROUP) + 1;
 277
 278         mvm->num_of_pages_in_last_blk =
 279                 num_of_pages -
 280                 NUM_OF_PAGE_PER_GROUP * (mvm->num_of_paging_blk - 1);
 281
 282         IWL_DEBUG_FW(mvm,
 283                      "Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",
 284                      mvm->num_of_paging_blk,
 285                      mvm->num_of_pages_in_last_blk);
 286
 287         /* allocate block of 4Kbytes for paging CSS */
 288         order = get_order(FW_PAGING_SIZE);
 289         block = alloc_pages(GFP_KERNEL, order);
 290         if (!block) {
 291                 /* free all the previous pages since we failed */
 292                 iwl_free_fw_paging(mvm);
 293                 return -ENOMEM;
 294         }
 295
 296         mvm->fw_paging_db[blk_idx].fw_paging_block = block;
 297         mvm->fw_paging_db[blk_idx].fw_paging_size = FW_PAGING_SIZE;
 298
 299         if (dma_enabled) {
 300                 phys = dma_map_page(mvm->trans->dev, block, 0,
 301                                     PAGE_SIZE << order, DMA_BIDIRECTIONAL);
 302                 if (dma_mapping_error(mvm->trans->dev, phys)) {
 303                         /*
 304                          * free the previous pages and the current one since
 305                          * we failed to map_page.
 306                          */
 307                         iwl_free_fw_paging(mvm);
 308                         return -ENOMEM;
 309                 }
 310                 mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
 311         } else {
 312                 mvm->fw_paging_db[blk_idx].fw_paging_phys = PAGING_ADDR_SIG |
 313                         blk_idx << BLOCK_2_EXP_SIZE;
 314         }
 315
 316         IWL_DEBUG_FW(mvm,
 317                      "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
 318                      order);
 319
 320         /*
 321          * allocate blocks in dram.
 322          * since that CSS allocated in fw_paging_db[0] loop start from index 1
 323          */
 324         for (blk_idx = 1; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
 325                 /* allocate block of PAGING_BLOCK_SIZE (32K) */
 326                 order = get_order(PAGING_BLOCK_SIZE);
 327                 block = alloc_pages(GFP_KERNEL, order);
 328                 if (!block) {
 329                         /* free all the previous pages since we failed */
 330                         iwl_free_fw_paging(mvm);
 331                         return -ENOMEM;
 332                 }
 333
 334                 mvm->fw_paging_db[blk_idx].fw_paging_block = block;
 335                 mvm->fw_paging_db[blk_idx].fw_paging_size = PAGING_BLOCK_SIZE;
 336
 337                 if (dma_enabled) {
 338                         phys = dma_map_page(mvm->trans->dev, block, 0,
 339                                             PAGE_SIZE << order,
 340                                             DMA_BIDIRECTIONAL);
 341                         if (dma_mapping_error(mvm->trans->dev, phys)) {
 342                                 /*
 343                                  * free the previous pages and the current one
 344                                  * since we failed to map_page.
 345                                  */
 346                                 iwl_free_fw_paging(mvm);
 347                                 return -ENOMEM;
 348                         }
 349                         mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
 350                 } else {
 351                         mvm->fw_paging_db[blk_idx].fw_paging_phys =
 352                                 PAGING_ADDR_SIG |
 353                                 blk_idx << BLOCK_2_EXP_SIZE;
 354                 }
 355
 356                 IWL_DEBUG_FW(mvm,
 357                              "Paging: allocated 32K bytes (order %d) for firmware paging.\n",
 358                              order);
 359         }
 360
 361         return 0;
 362 }
 363
 364 static int iwl_save_fw_paging(struct iwl_mvm *mvm,
 365                               const struct fw_img *fw)
 366 {
 367         int ret;
 368
 369         ret = iwl_alloc_fw_paging_mem(mvm, fw);
 370         if (ret)
 371                 return ret;
 372
 373         return iwl_fill_paging_mem(mvm, fw);
 374 }
 375
 376 /* send paging cmd to FW in case CPU2 has paging image */
 377 static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw)
 378 {
 379         struct iwl_fw_paging_cmd paging_cmd = {
 380                 .flags =
 381                         cpu_to_le32(PAGING_CMD_IS_SECURED |
 382                                     PAGING_CMD_IS_ENABLED |
 383                                     (mvm->num_of_pages_in_last_blk <<
 384                                     PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
 385                 .block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
 386                 .block_num = cpu_to_le32(mvm->num_of_paging_blk),
 387         };
 388         int blk_idx, size = sizeof(paging_cmd);
 389
 390         /* A bit hard coded - but this is the old API and will be deprecated */
 391         if (!iwl_mvm_has_new_tx_api(mvm))
 392                 size -= NUM_OF_FW_PAGING_BLOCKS * 4;
 393
 394         /* loop for for all paging blocks + CSS block */
 395         for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
 396                 dma_addr_t addr = mvm->fw_paging_db[blk_idx].fw_paging_phys;
 397
 398                 addr = addr >> PAGE_2_EXP_SIZE;
 399
 400                 if (iwl_mvm_has_new_tx_api(mvm)) {
 401                         __le64 phy_addr = cpu_to_le64(addr);
 402
 403                         paging_cmd.device_phy_addr.addr64[blk_idx] = phy_addr;
 404                 } else {
 405                         __le32 phy_addr = cpu_to_le32(addr);
 406
 407                         paging_cmd.device_phy_addr.addr32[blk_idx] = phy_addr;
 408                 }
 409         }
 410
 411         return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(FW_PAGING_BLOCK_CMD,
 412                                                     IWL_ALWAYS_LONG_GROUP, 0),
 413                                     0, size, &paging_cmd);
 414 }
 415
 416 /*
 417  * Send paging item cmd to FW in case CPU2 has paging image
 418  */
 419 static int iwl_trans_get_paging_item(struct iwl_mvm *mvm)
 420 {
 421         int ret;
 422         struct iwl_fw_get_item_cmd fw_get_item_cmd = {
 423                 .item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING),
 424         };
 425
 426         struct iwl_fw_get_item_resp *item_resp;
 427         struct iwl_host_cmd cmd = {
 428                 .id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0),
 429                 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
 430                 .data = { &fw_get_item_cmd, },
 431         };
 432
 433         cmd.len[0] = sizeof(struct iwl_fw_get_item_cmd);
 434
 435         ret = iwl_mvm_send_cmd(mvm, &cmd);
 436         if (ret) {
 437                 IWL_ERR(mvm,
 438                         "Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n",
 439                         ret);
 440                 return ret;
 441         }
 442
 443         item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data;
 444         if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) {
 445                 IWL_ERR(mvm,
 446                         "Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n",
 447                         le32_to_cpu(item_resp->item_id));
 448                 ret = -EIO;
 449                 goto exit;
 450         }
 451
 452         /* Add an extra page for headers */
 453         mvm->trans->paging_download_buf = kzalloc(PAGING_BLOCK_SIZE +
 454                                                   FW_PAGING_SIZE,
 455                                                   GFP_KERNEL);
 456         if (!mvm->trans->paging_download_buf) {
 457                 ret = -ENOMEM;
 458                 goto exit;
 459         }
 460         mvm->trans->paging_req_addr = le32_to_cpu(item_resp->item_val);
 461         mvm->trans->paging_db = mvm->fw_paging_db;
 462         IWL_DEBUG_FW(mvm,
 463                      "Paging: got paging request address (paging_req_addr 0x%08x)\n",
 464                      mvm->trans->paging_req_addr);
 465
 466 exit:
 467         iwl_free_resp(&cmd);
 468
 469         return ret;
 470 }
 471
 472 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
 473                          struct iwl_rx_packet *pkt, void *data)
 474 {
 475         struct iwl_mvm *mvm =
 476                 container_of(notif_wait, struct iwl_mvm, notif_wait);
 477         struct iwl_mvm_alive_data *alive_data = data;
 478         struct mvm_alive_resp_ver1 *palive1;
 479         struct mvm_alive_resp_ver2 *palive2;
 480         struct mvm_alive_resp *palive;
 481
 482         if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive1)) {
 483                 palive1 = (void *)pkt->data;
 484
 485                 mvm->support_umac_log = false;
 486                 mvm->error_event_table =
 487                         le32_to_cpu(palive1->error_event_table_ptr);
 488                 mvm->log_event_table =
 489                         le32_to_cpu(palive1->log_event_table_ptr);
 490                 alive_data->scd_base_addr = le32_to_cpu(palive1->scd_base_ptr);
 491
 492                 alive_data->valid = le16_to_cpu(palive1->status) ==
 493                                     IWL_ALIVE_STATUS_OK;
 494                 IWL_DEBUG_FW(mvm,
 495                              "Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
 496                              le16_to_cpu(palive1->status), palive1->ver_type,
 497                              palive1->ver_subtype, palive1->flags);
 498         } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive2)) {
 499                 palive2 = (void *)pkt->data;
 500
 501                 mvm->error_event_table =
 502                         le32_to_cpu(palive2->error_event_table_ptr);
 503                 mvm->log_event_table =
 504                         le32_to_cpu(palive2->log_event_table_ptr);
 505                 alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr);
 506                 mvm->umac_error_event_table =
 507                         le32_to_cpu(palive2->error_info_addr);
 508                 mvm->sf_space.addr = le32_to_cpu(palive2->st_fwrd_addr);
 509                 mvm->sf_space.size = le32_to_cpu(palive2->st_fwrd_size);
 510
 511                 alive_data->valid = le16_to_cpu(palive2->status) ==
 512                                     IWL_ALIVE_STATUS_OK;
 513                 if (mvm->umac_error_event_table)
 514                         mvm->support_umac_log = true;
 515
 516                 IWL_DEBUG_FW(mvm,
 517                              "Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
 518                              le16_to_cpu(palive2->status), palive2->ver_type,
 519                              palive2->ver_subtype, palive2->flags);
 520
 521                 IWL_DEBUG_FW(mvm,
 522                              "UMAC version: Major - 0x%x, Minor - 0x%x\n",
 523                              palive2->umac_major, palive2->umac_minor);
 524         } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
 525                 palive = (void *)pkt->data;
 526
 527                 mvm->error_event_table =
 528                         le32_to_cpu(palive->error_event_table_ptr);
 529                 mvm->log_event_table =
 530                         le32_to_cpu(palive->log_event_table_ptr);
 531                 alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr);
 532                 mvm->umac_error_event_table =
 533                         le32_to_cpu(palive->error_info_addr);
 534                 mvm->sf_space.addr = le32_to_cpu(palive->st_fwrd_addr);
 535                 mvm->sf_space.size = le32_to_cpu(palive->st_fwrd_size);
 536
 537                 alive_data->valid = le16_to_cpu(palive->status) ==
 538                                     IWL_ALIVE_STATUS_OK;
 539                 if (mvm->umac_error_event_table)
 540                         mvm->support_umac_log = true;
 541
 542                 IWL_DEBUG_FW(mvm,
 543                              "Alive VER3 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
 544                              le16_to_cpu(palive->status), palive->ver_type,
 545                              palive->ver_subtype, palive->flags);
 546
 547                 IWL_DEBUG_FW(mvm,
 548                              "UMAC version: Major - 0x%x, Minor - 0x%x\n",
 549                              le32_to_cpu(palive->umac_major),
 550                              le32_to_cpu(palive->umac_minor));
 551         }
 552
 553         return true;
 554 }
 555
 556 static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
 557                                   struct iwl_rx_packet *pkt, void *data)
 558 {
 559         struct iwl_phy_db *phy_db = data;
 560
 561         if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
 562                 WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
 563                 return true;
 564         }
 565
 566         WARN_ON(iwl_phy_db_set_section(phy_db, pkt));
 567
 568         return false;
 569 }
 570
 571 static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
 572                                          enum iwl_ucode_type ucode_type)
 573 {
 574         struct iwl_notification_wait alive_wait;
 575         struct iwl_mvm_alive_data alive_data;
 576         const struct fw_img *fw;
 577         int ret, i;
 578         enum iwl_ucode_type old_type = mvm->cur_ucode;
 579         static const u16 alive_cmd[] = { MVM_ALIVE };
 580         struct iwl_sf_region st_fwrd_space;
 581
 582         if (ucode_type == IWL_UCODE_REGULAR &&
 583             iwl_fw_dbg_conf_usniffer(mvm->fw, FW_DBG_START_FROM_ALIVE) &&
 584             !(fw_has_capa(&mvm->fw->ucode_capa,
 585                           IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED)))
 586                 fw = iwl_get_ucode_image(mvm->fw, IWL_UCODE_REGULAR_USNIFFER);
 587         else
 588                 fw = iwl_get_ucode_image(mvm->fw, ucode_type);
 589         if (WARN_ON(!fw))
 590                 return -EINVAL;
 591         mvm->cur_ucode = ucode_type;
 592         mvm->ucode_loaded = false;
 593
 594         iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
 595                                    alive_cmd, ARRAY_SIZE(alive_cmd),
 596                                    iwl_alive_fn, &alive_data);
 597
 598         ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
 599         if (ret) {
 600                 mvm->cur_ucode = old_type;
 601                 iwl_remove_notification(&mvm->notif_wait, &alive_wait);
 602                 return ret;
 603         }
 604
 605         /*
 606          * Some things may run in the background now, but we
 607          * just wait for the ALIVE notification here.
 608          */
 609         ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
 610                                     MVM_UCODE_ALIVE_TIMEOUT);
 611         if (ret) {
 612                 if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
 613                         IWL_ERR(mvm,
 614                                 "SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
 615                                 iwl_read_prph(mvm->trans, SB_CPU_1_STATUS),
 616                                 iwl_read_prph(mvm->trans, SB_CPU_2_STATUS));
 617                 mvm->cur_ucode = old_type;
 618                 return ret;
 619         }
 620
 621         if (!alive_data.valid) {
 622                 IWL_ERR(mvm, "Loaded ucode is not valid!\n");
 623                 mvm->cur_ucode = old_type;
 624                 return -EIO;
 625         }
 626
 627         /*
 628          * update the sdio allocation according to the pointer we get in the
 629          * alive notification.
 630          */
 631         st_fwrd_space.addr = mvm->sf_space.addr;
 632         st_fwrd_space.size = mvm->sf_space.size;
 633         ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space);
 634         if (ret) {
 635                 IWL_ERR(mvm, "Failed to update SF size. ret %d\n", ret);
 636                 return ret;
 637         }
 638
 639         iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);
 640
 641         /*
 642          * configure and operate fw paging mechanism.
 643          * driver configures the paging flow only once, CPU2 paging image
 644          * included in the IWL_UCODE_INIT image.
 645          */
 646         if (fw->paging_mem_size) {
 647                 /*
 648                  * When dma is not enabled, the driver needs to copy / write
 649                  * the downloaded / uploaded page to / from the smem.
 650                  * This gets the location of the place were the pages are
 651                  * stored.
 652                  */
 653                 if (!is_device_dma_capable(mvm->trans->dev)) {
 654                         ret = iwl_trans_get_paging_item(mvm);
 655                         if (ret) {
 656                                 IWL_ERR(mvm, "failed to get FW paging item\n");
 657                                 return ret;
 658                         }
 659                 }
 660
 661                 ret = iwl_save_fw_paging(mvm, fw);
 662                 if (ret) {
 663                         IWL_ERR(mvm, "failed to save the FW paging image\n");
 664                         return ret;
 665                 }
 666
 667                 ret = iwl_send_paging_cmd(mvm, fw);
 668                 if (ret) {
 669                         IWL_ERR(mvm, "failed to send the paging cmd\n");
 670                         iwl_free_fw_paging(mvm);
 671                         return ret;
 672                 }
 673         }
 674
 675         /*
 676          * Note: all the queues are enabled as part of the interface
 677          * initialization, but in firmware restart scenarios they
 678          * could be stopped, so wake them up. In firmware restart,
 679          * mac80211 will have the queues stopped as well until the
 680          * reconfiguration completes. During normal startup, they
 681          * will be empty.
 682          */
 683
 684         memset(&mvm->queue_info, 0, sizeof(mvm->queue_info));
 685         if (iwl_mvm_is_dqa_supported(mvm))
 686                 mvm->queue_info[IWL_MVM_DQA_CMD_QUEUE].hw_queue_refcount = 1;
 687         else
 688                 mvm->queue_info[IWL_MVM_CMD_QUEUE].hw_queue_refcount = 1;
 689
 690         for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
 691                 atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
 692
 693         mvm->ucode_loaded = true;
 694
 695         return 0;
 696 }
 697
 698 static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
 699 {
 700         struct iwl_phy_cfg_cmd phy_cfg_cmd;
 701         enum iwl_ucode_type ucode_type = mvm->cur_ucode;
 702
 703         /* Set parameters */
 704         phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
 705         phy_cfg_cmd.calib_control.event_trigger =
 706                 mvm->fw->default_calib[ucode_type].event_trigger;
 707         phy_cfg_cmd.calib_control.flow_trigger =
 708                 mvm->fw->default_calib[ucode_type].flow_trigger;
 709
 710         IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
 711                        phy_cfg_cmd.phy_cfg);
 712
 713         return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0,
 714                                     sizeof(phy_cfg_cmd), &phy_cfg_cmd);
 715 }
 716
 717 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 718 {
 719         struct iwl_notification_wait calib_wait;
 720         static const u16 init_complete[] = {
 721                 INIT_COMPLETE_NOTIF,
 722                 CALIB_RES_NOTIF_PHY_DB
 723         };
 724         int ret;
 725
 726         lockdep_assert_held(&mvm->mutex);
 727
 728         if (WARN_ON_ONCE(mvm->calibrating))
 729                 return 0;
 730
 731         iwl_init_notification_wait(&mvm->notif_wait,
 732                                    &calib_wait,
 733                                    init_complete,
 734                                    ARRAY_SIZE(init_complete),
 735                                    iwl_wait_phy_db_entry,
 736                                    mvm->phy_db);
 737
 738         /* Will also start the device */
 739         ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
 740         if (ret) {
 741                 IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
 742                 goto error;
 743         }
 744
 745         ret = iwl_send_bt_init_conf(mvm);
 746         if (ret)
 747                 goto error;
 748
 749         /* Read the NVM only at driver load time, no need to do this twice */
 750         if (read_nvm) {
 751                 /* Read nvm */
 752                 ret = iwl_nvm_init(mvm, true);
 753                 if (ret) {
 754                         IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
 755                         goto error;
 756                 }
 757         }
 758
 759         /* In case we read the NVM from external file, load it to the NIC */
 760         if (mvm->nvm_file_name)
 761                 iwl_mvm_load_nvm_to_nic(mvm);
 762
 763         ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
 764         WARN_ON(ret);
 765
 766         /*
 767          * abort after reading the nvm in case RF Kill is on, we will complete
 768          * the init seq later when RF kill will switch to off
 769          */
 770         if (iwl_mvm_is_radio_hw_killed(mvm)) {
 771                 IWL_DEBUG_RF_KILL(mvm,
 772                                   "jump over all phy activities due to RF kill\n");
 773                 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
 774                 ret = 1;
 775                 goto out;
 776         }
 777
 778         mvm->calibrating = true;
 779
 780         /* Send TX valid antennas before triggering calibrations */
 781         ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
 782         if (ret)
 783                 goto error;
 784
 785         /*
 786          * Send phy configurations command to init uCode
 787          * to start the 16.0 uCode init image internal calibrations.
 788          */
 789         ret = iwl_send_phy_cfg_cmd(mvm);
 790         if (ret) {
 791                 IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
 792                         ret);
 793                 goto error;
 794         }
 795
 796         /*
 797          * Some things may run in the background now, but we
 798          * just wait for the calibration complete notification.
 799          */
 800         ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
 801                         MVM_UCODE_CALIB_TIMEOUT);
 802
 803         if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
 804                 IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
 805                 ret = 1;
 806         }
 807         goto out;
 808
 809 error:
 810         iwl_remove_notification(&mvm->notif_wait, &calib_wait);
 811 out:
 812         mvm->calibrating = false;
 813         if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
 814                 /* we want to debug INIT and we have no NVM - fake */
 815                 mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
 816                                         sizeof(struct ieee80211_channel) +
 817                                         sizeof(struct ieee80211_rate),
 818                                         GFP_KERNEL);
 819                 if (!mvm->nvm_data)
 820                         return -ENOMEM;
 821                 mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
 822                 mvm->nvm_data->bands[0].n_channels = 1;
 823                 mvm->nvm_data->bands[0].n_bitrates = 1;
 824                 mvm->nvm_data->bands[0].bitrates =
 825                         (void *)mvm->nvm_data->channels + 1;
 826                 mvm->nvm_data->bands[0].bitrates->hw_value = 10;
 827         }
 828
 829         return ret;
 830 }
 831
 832 static void iwl_mvm_parse_shared_mem_a000(struct iwl_mvm *mvm,
 833                                           struct iwl_rx_packet *pkt)
 834 {
 835         struct iwl_shared_mem_cfg *mem_cfg = (void *)pkt->data;
 836         int i;
 837
 838         mvm->shared_mem_cfg.num_txfifo_entries =
 839                 ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size);
 840         for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++)
 841                 mvm->shared_mem_cfg.txfifo_size[i] =
 842                         le32_to_cpu(mem_cfg->txfifo_size[i]);
 843         for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++)
 844                 mvm->shared_mem_cfg.rxfifo_size[i] =
 845                         le32_to_cpu(mem_cfg->rxfifo_size[i]);
 846
 847         BUILD_BUG_ON(sizeof(mvm->shared_mem_cfg.internal_txfifo_size) !=
 848                      sizeof(mem_cfg->internal_txfifo_size));
 849
 850         for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.internal_txfifo_size);
 851              i++)
 852                 mvm->shared_mem_cfg.internal_txfifo_size[i] =
 853                         le32_to_cpu(mem_cfg->internal_txfifo_size[i]);
 854 }
 855
 856 static void iwl_mvm_parse_shared_mem(struct iwl_mvm *mvm,
 857                                      struct iwl_rx_packet *pkt)
 858 {
 859         struct iwl_shared_mem_cfg_v1 *mem_cfg = (void *)pkt->data;
 860         int i;
 861
 862         mvm->shared_mem_cfg.num_txfifo_entries =
 863                 ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size);
 864         for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++)
 865                 mvm->shared_mem_cfg.txfifo_size[i] =
 866                         le32_to_cpu(mem_cfg->txfifo_size[i]);
 867         for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++)
 868                 mvm->shared_mem_cfg.rxfifo_size[i] =
 869                         le32_to_cpu(mem_cfg->rxfifo_size[i]);
 870
 871         /* new API has more data, from rxfifo_addr field and on */
 872         if (fw_has_capa(&mvm->fw->ucode_capa,
 873                         IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) {
 874                 BUILD_BUG_ON(sizeof(mvm->shared_mem_cfg.internal_txfifo_size) !=
 875                              sizeof(mem_cfg->internal_txfifo_size));
 876
 877                 for (i = 0;
 878                      i < ARRAY_SIZE(mvm->shared_mem_cfg.internal_txfifo_size);
 879                      i++)
 880                         mvm->shared_mem_cfg.internal_txfifo_size[i] =
 881                                 le32_to_cpu(mem_cfg->internal_txfifo_size[i]);
 882         }
 883 }
 884
 885 static void iwl_mvm_get_shared_mem_conf(struct iwl_mvm *mvm)
 886 {
 887         struct iwl_host_cmd cmd = {
 888                 .flags = CMD_WANT_SKB,
 889                 .data = { NULL, },
 890                 .len = { 0, },
 891         };
 892         struct iwl_rx_packet *pkt;
 893
 894         lockdep_assert_held(&mvm->mutex);
 895
 896         if (fw_has_capa(&mvm->fw->ucode_capa,
 897                         IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG))
 898                 cmd.id = iwl_cmd_id(SHARED_MEM_CFG_CMD, SYSTEM_GROUP, 0);
 899         else
 900                 cmd.id = SHARED_MEM_CFG;
 901
 902         if (WARN_ON(iwl_mvm_send_cmd(mvm, &cmd)))
 903                 return;
 904
 905         pkt = cmd.resp_pkt;
 906         if (iwl_mvm_has_new_tx_api(mvm))
 907                 iwl_mvm_parse_shared_mem_a000(mvm, pkt);
 908         else
 909                 iwl_mvm_parse_shared_mem(mvm, pkt);
 910
 911         IWL_DEBUG_INFO(mvm, "SHARED MEM CFG: got memory offsets/sizes\n");
 912
 913         iwl_free_resp(&cmd);
 914 }
 915
 916 static int iwl_mvm_config_ltr(struct iwl_mvm *mvm)
 917 {
 918         struct iwl_ltr_config_cmd cmd = {
 919                 .flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
 920         };
 921
 922         if (!mvm->trans->ltr_enabled)
 923                 return 0;
 924
 925         return iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
 926                                     sizeof(cmd), &cmd);
 927 }
 928
 929 #define ACPI_WRDS_METHOD        "WRDS"
 930 #define ACPI_WRDS_WIFI          (0x07)
 931 #define ACPI_WRDS_TABLE_SIZE    10
 932
 933 struct iwl_mvm_sar_table {
 934         bool enabled;
 935         u8 values[ACPI_WRDS_TABLE_SIZE];
 936 };
 937
 938 #ifdef CONFIG_ACPI
 939 static int iwl_mvm_sar_get_wrds(struct iwl_mvm *mvm, union acpi_object *wrds,
 940                                 struct iwl_mvm_sar_table *sar_table)
 941 {
 942         union acpi_object *data_pkg;
 943         u32 i;
 944
 945         /* We need at least two packages, one for the revision and one
 946          * for the data itself.  Also check that the revision is valid
 947          * (i.e. it is an integer set to 0).
 948         */
 949         if (wrds->type != ACPI_TYPE_PACKAGE ||
 950             wrds->package.count < 2 ||
 951             wrds->package.elements[0].type != ACPI_TYPE_INTEGER ||
 952             wrds->package.elements[0].integer.value != 0) {
 953                 IWL_DEBUG_RADIO(mvm, "Unsupported wrds structure\n");
 954                 return -EINVAL;
 955         }
 956
 957         /* loop through all the packages to find the one for WiFi */
 958         for (i = 1; i < wrds->package.count; i++) {
 959                 union acpi_object *domain;
 960
 961                 data_pkg = &wrds->package.elements[i];
 962
 963                 /* Skip anything that is not a package with the right
 964                  * amount of elements (i.e. domain_type,
 965                  * enabled/disabled plus the sar table size.
 966                  */
 967                 if (data_pkg->type != ACPI_TYPE_PACKAGE ||
 968                     data_pkg->package.count != ACPI_WRDS_TABLE_SIZE + 2)
 969                         continue;
 970
 971                 domain = &data_pkg->package.elements[0];
 972                 if (domain->type == ACPI_TYPE_INTEGER &&
 973                     domain->integer.value == ACPI_WRDS_WIFI)
 974                         break;
 975
 976                 data_pkg = NULL;
 977         }
 978
 979         if (!data_pkg)
 980                 return -ENOENT;
 981
 982         if (data_pkg->package.elements[1].type != ACPI_TYPE_INTEGER)
 983                 return -EINVAL;
 984
 985         sar_table->enabled = !!(data_pkg->package.elements[1].integer.value);
 986
 987         for (i = 0; i < ACPI_WRDS_TABLE_SIZE; i++) {
 988                 union acpi_object *entry;
 989
 990                 entry = &data_pkg->package.elements[i + 2];
 991                 if ((entry->type != ACPI_TYPE_INTEGER) ||
 992                     (entry->integer.value > U8_MAX))
 993                         return -EINVAL;
 994
 995                 sar_table->values[i] = entry->integer.value;
 996         }
 997
 998         return 0;
 999 }
1000
1001 static int iwl_mvm_sar_get_table(struct iwl_mvm *mvm,
1002                                  struct iwl_mvm_sar_table *sar_table)
1003 {
1004         acpi_handle root_handle;
1005         acpi_handle handle;
1006         struct acpi_buffer wrds = {ACPI_ALLOCATE_BUFFER, NULL};
1007         acpi_status status;
1008         int ret;
1009
1010         root_handle = ACPI_HANDLE(mvm->dev);
1011         if (!root_handle) {
1012                 IWL_DEBUG_RADIO(mvm,
1013                                 "Could not retrieve root port ACPI handle\n");
1014                 return -ENOENT;
1015         }
1016
1017         /* Get the method's handle */
1018         status = acpi_get_handle(root_handle, (acpi_string)ACPI_WRDS_METHOD,
1019                                  &handle);
1020         if (ACPI_FAILURE(status)) {
1021                 IWL_DEBUG_RADIO(mvm, "WRDS method not found\n");
1022                 return -ENOENT;
1023         }
1024
1025         /* Call WRDS with no arguments */
1026         status = acpi_evaluate_object(handle, NULL, NULL, &wrds);
1027         if (ACPI_FAILURE(status)) {
1028                 IWL_DEBUG_RADIO(mvm, "WRDS invocation failed (0x%x)\n", status);
1029                 return -ENOENT;
1030         }
1031
1032         ret = iwl_mvm_sar_get_wrds(mvm, wrds.pointer, sar_table);
1033         kfree(wrds.pointer);
1034
1035         return ret;
1036 }
1037 #else /* CONFIG_ACPI */
1038 static int iwl_mvm_sar_get_table(struct iwl_mvm *mvm,
1039                                  struct iwl_mvm_sar_table *sar_table)
1040 {
1041         return -ENOENT;
1042 }
1043 #endif /* CONFIG_ACPI */
1044
1045 static int iwl_mvm_sar_init(struct iwl_mvm *mvm)
1046 {
1047         struct iwl_mvm_sar_table sar_table;
1048         struct iwl_dev_tx_power_cmd cmd = {
1049                 .v3.v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_CHAINS),
1050         };
1051         int ret, i, j, idx;
1052         int len = sizeof(cmd);
1053
1054         /* we can't do anything with the table if the FW doesn't support it */
1055         if (!fw_has_api(&mvm->fw->ucode_capa,
1056                         IWL_UCODE_TLV_API_TX_POWER_CHAIN)) {
1057                 IWL_DEBUG_RADIO(mvm,
1058                                 "FW doesn't support per-chain TX power settings.\n");
1059                 return 0;
1060         }
1061
1062         if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1063                 len = sizeof(cmd.v3);
1064
1065         ret = iwl_mvm_sar_get_table(mvm, &sar_table);
1066         if (ret < 0) {
1067                 IWL_DEBUG_RADIO(mvm,
1068                                 "SAR BIOS table invalid or unavailable. (%d)\n",
1069                                 ret);
1070                 /* we don't fail if the table is not available */
1071                 return 0;
1072         }
1073
1074         if (!sar_table.enabled)
1075                 return 0;
1076
1077         IWL_DEBUG_RADIO(mvm, "Sending REDUCE_TX_POWER_CMD per chain\n");
1078
1079         BUILD_BUG_ON(IWL_NUM_CHAIN_LIMITS * IWL_NUM_SUB_BANDS !=
1080                      ACPI_WRDS_TABLE_SIZE);
1081
1082         for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
1083                 IWL_DEBUG_RADIO(mvm, "  Chain[%d]:\n", i);
1084                 for (j = 0; j < IWL_NUM_SUB_BANDS; j++) {
1085                         idx = (i * IWL_NUM_SUB_BANDS) + j;
1086                         cmd.v3.per_chain_restriction[i][j] =
1087                                 cpu_to_le16(sar_table.values[idx]);
1088                         IWL_DEBUG_RADIO(mvm, "    Band[%d] = %d * .125dBm\n",
1089                                         j, sar_table.values[idx]);
1090                 }
1091         }
1092
1093         ret = iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
1094         if (ret)
1095                 IWL_ERR(mvm, "failed to set per-chain TX power: %d\n", ret);
1096
1097         return ret;
1098 }
1099
1100 int iwl_mvm_up(struct iwl_mvm *mvm)
1101 {
1102         int ret, i;
1103         struct ieee80211_channel *chan;
1104         struct cfg80211_chan_def chandef;
1105
1106         lockdep_assert_held(&mvm->mutex);
1107
1108         ret = iwl_trans_start_hw(mvm->trans);
1109         if (ret)
1110                 return ret;
1111
1112         /*
1113          * If we haven't completed the run of the init ucode during
1114          * module loading, load init ucode now
1115          * (for example, if we were in RFKILL)
1116          */
1117         ret = iwl_run_init_mvm_ucode(mvm, false);
1118
1119         if (iwlmvm_mod_params.init_dbg)
1120                 return 0;
1121
1122         if (ret) {
1123                 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
1124                 /* this can't happen */
1125                 if (WARN_ON(ret > 0))
1126                         ret = -ERFKILL;
1127                 goto error;
1128         }
1129
1130         /*
1131          * Stop and start the transport without entering low power
1132          * mode. This will save the state of other components on the
1133          * device that are triggered by the INIT firwmare (MFUART).
1134          */
1135         _iwl_trans_stop_device(mvm->trans, false);
1136         ret = _iwl_trans_start_hw(mvm->trans, false);
1137         if (ret)
1138                 goto error;
1139
1140         ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
1141         if (ret) {
1142                 IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
1143                 goto error;
1144         }
1145
1146         iwl_mvm_get_shared_mem_conf(mvm);
1147
1148         ret = iwl_mvm_sf_update(mvm, NULL, false);
1149         if (ret)
1150                 IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");
1151
1152         mvm->fw_dbg_conf = FW_DBG_INVALID;
1153         /* if we have a destination, assume EARLY START */
1154         if (mvm->fw->dbg_dest_tlv)
1155                 mvm->fw_dbg_conf = FW_DBG_START_FROM_ALIVE;
1156         iwl_mvm_start_fw_dbg_conf(mvm, FW_DBG_START_FROM_ALIVE);
1157
1158         ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
1159         if (ret)
1160                 goto error;
1161
1162         ret = iwl_send_bt_init_conf(mvm);
1163         if (ret)
1164                 goto error;
1165
1166         /* Send phy db control command and then phy db calibration*/
1167         ret = iwl_send_phy_db_data(mvm->phy_db);
1168         if (ret)
1169                 goto error;
1170
1171         ret = iwl_send_phy_cfg_cmd(mvm);
1172         if (ret)
1173                 goto error;
1174
1175         /* Init RSS configuration */
1176         if (iwl_mvm_has_new_rx_api(mvm)) {
1177                 ret = iwl_send_rss_cfg_cmd(mvm);
1178                 if (ret) {
1179                         IWL_ERR(mvm, "Failed to configure RSS queues: %d\n",
1180                                 ret);
1181                         goto error;
1182                 }
1183         }
1184
1185         /* init the fw <-> mac80211 STA mapping */
1186         for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
1187                 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
1188
1189         mvm->tdls_cs.peer.sta_id = IWL_MVM_STATION_COUNT;
1190
1191         /* reset quota debouncing buffer - 0xff will yield invalid data */
1192         memset(&mvm->last_quota_cmd, 0xff, sizeof(mvm->last_quota_cmd));
1193
1194         /* Enable DQA-mode if required */
1195         if (iwl_mvm_is_dqa_supported(mvm)) {
1196                 ret = iwl_mvm_send_dqa_cmd(mvm);
1197                 if (ret)
1198                         goto error;
1199         } else {
1200                 IWL_DEBUG_FW(mvm, "Working in non-DQA mode\n");
1201         }
1202
1203         /* Add auxiliary station for scanning */
1204         ret = iwl_mvm_add_aux_sta(mvm);
1205         if (ret)
1206                 goto error;
1207
1208         /* Add all the PHY contexts */
1209         chan = &mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]->channels[0];
1210         cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
1211         for (i = 0; i < NUM_PHY_CTX; i++) {
1212                 /*
1213                  * The channel used here isn't relevant as it's
1214                  * going to be overwritten in the other flows.
1215                  * For now use the first channel we have.
1216                  */
1217                 ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
1218                                            &chandef, 1, 1);
1219                 if (ret)
1220                         goto error;
1221         }
1222
1223 #ifdef CONFIG_THERMAL
1224         if (iwl_mvm_is_tt_in_fw(mvm)) {
1225                 /* in order to give the responsibility of ct-kill and
1226                  * TX backoff to FW we need to send empty temperature reporting
1227                  * cmd during init time
1228                  */
1229                 iwl_mvm_send_temp_report_ths_cmd(mvm);
1230         } else {
1231                 /* Initialize tx backoffs to the minimal possible */
1232                 iwl_mvm_tt_tx_backoff(mvm, 0);
1233         }
1234
1235         /* TODO: read the budget from BIOS / Platform NVM */
1236         if (iwl_mvm_is_ctdp_supported(mvm) && mvm->cooling_dev.cur_state > 0) {
1237                 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START,
1238                                            mvm->cooling_dev.cur_state);
1239                 if (ret)
1240                         goto error;
1241         }
1242 #else
1243         /* Initialize tx backoffs to the minimal possible */
1244         iwl_mvm_tt_tx_backoff(mvm, 0);
1245 #endif
1246
1247         WARN_ON(iwl_mvm_config_ltr(mvm));
1248
1249         ret = iwl_mvm_power_update_device(mvm);
1250         if (ret)
1251                 goto error;
1252
1253         /*
1254          * RTNL is not taken during Ct-kill, but we don't need to scan/Tx
1255          * anyway, so don't init MCC.
1256          */
1257         if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) {
1258                 ret = iwl_mvm_init_mcc(mvm);
1259                 if (ret)
1260                         goto error;
1261         }
1262
1263         if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1264                 mvm->scan_type = IWL_SCAN_TYPE_NOT_SET;
1265                 ret = iwl_mvm_config_scan(mvm);
1266                 if (ret)
1267                         goto error;
1268         }
1269
1270         if (iwl_mvm_is_csum_supported(mvm) &&
1271             mvm->cfg->features & NETIF_F_RXCSUM)
1272                 iwl_trans_write_prph(mvm->trans, RX_EN_CSUM, 0x3);
1273
1274         /* allow FW/transport low power modes if not during restart */
1275         if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1276                 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1277
1278         ret = iwl_mvm_sar_init(mvm);
1279         if (ret)
1280                 goto error;
1281
1282         IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
1283         return 0;
1284  error:
1285         iwl_mvm_stop_device(mvm);
1286         return ret;
1287 }
1288
1289 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
1290 {
1291         int ret, i;
1292
1293         lockdep_assert_held(&mvm->mutex);
1294
1295         ret = iwl_trans_start_hw(mvm->trans);
1296         if (ret)
1297                 return ret;
1298
1299         ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN);
1300         if (ret) {
1301                 IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret);
1302                 goto error;
1303         }
1304
1305         ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
1306         if (ret)
1307                 goto error;
1308
1309         /* Send phy db control command and then phy db calibration*/
1310         ret = iwl_send_phy_db_data(mvm->phy_db);
1311         if (ret)
1312                 goto error;
1313
1314         ret = iwl_send_phy_cfg_cmd(mvm);
1315         if (ret)
1316                 goto error;
1317
1318         /* init the fw <-> mac80211 STA mapping */
1319         for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
1320                 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
1321
1322         /* Add auxiliary station for scanning */
1323         ret = iwl_mvm_add_aux_sta(mvm);
1324         if (ret)
1325                 goto error;
1326
1327         return 0;
1328  error:
1329         iwl_mvm_stop_device(mvm);
1330         return ret;
1331 }
1332
1333 void iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
1334                                  struct iwl_rx_cmd_buffer *rxb)
1335 {
1336         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1337         struct iwl_card_state_notif *card_state_notif = (void *)pkt->data;
1338         u32 flags = le32_to_cpu(card_state_notif->flags);
1339
1340         IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n",
1341                           (flags & HW_CARD_DISABLED) ? "Kill" : "On",
1342                           (flags & SW_CARD_DISABLED) ? "Kill" : "On",
1343                           (flags & CT_KILL_CARD_DISABLED) ?
1344                           "Reached" : "Not reached");
1345 }
1346
1347 void iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm,
1348                              struct iwl_rx_cmd_buffer *rxb)
1349 {
1350         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1351         struct iwl_mfuart_load_notif *mfuart_notif = (void *)pkt->data;
1352
1353         IWL_DEBUG_INFO(mvm,
1354                        "MFUART: installed ver: 0x%08x, external ver: 0x%08x, status: 0x%08x, duration: 0x%08x\n",
1355                        le32_to_cpu(mfuart_notif->installed_ver),
1356                        le32_to_cpu(mfuart_notif->external_ver),
1357                        le32_to_cpu(mfuart_notif->status),
1358                        le32_to_cpu(mfuart_notif->duration));
1359 }