drivers/net/wireless/iwmc3200wifi/commands.c

   1 /*
   2  * Intel Wireless Multicomm 3200 WiFi driver
   3  *
   4  * Copyright (C) 2009 Intel Corporation. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  *   * Redistributions of source code must retain the above copyright
  11  *     notice, this list of conditions and the following disclaimer.
  12  *   * Redistributions in binary form must reproduce the above copyright
  13  *     notice, this list of conditions and the following disclaimer in
  14  *     the documentation and/or other materials provided with the
  15  *     distribution.
  16  *   * Neither the name of Intel Corporation nor the names of its
  17  *     contributors may be used to endorse or promote products derived
  18  *     from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  *
  33  * Intel Corporation <ilw@linux.intel.com>
  34  * Samuel Ortiz <samuel.ortiz@intel.com>
  35  * Zhu Yi <yi.zhu@intel.com>
  36  *
  37  */
  38
  39 #include <linux/kernel.h>
  40 #include <linux/wireless.h>
  41 #include <linux/etherdevice.h>
  42 #include <linux/ieee80211.h>
  43
  44 #include "iwm.h"
  45 #include "bus.h"
  46 #include "hal.h"
  47 #include "umac.h"
  48 #include "commands.h"
  49 #include "debug.h"
  50
  51 static int iwm_send_lmac_ptrough_cmd(struct iwm_priv *iwm,
  52                                      u8 lmac_cmd_id,
  53                                      const void *lmac_payload,
  54                                      u16 lmac_payload_size,
  55                                      u8 resp)
  56 {
  57         struct iwm_udma_wifi_cmd udma_cmd = UDMA_LMAC_INIT;
  58         struct iwm_umac_cmd umac_cmd;
  59         struct iwm_lmac_cmd lmac_cmd;
  60
  61         lmac_cmd.id = lmac_cmd_id;
  62
  63         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_PASS_THROUGH;
  64         umac_cmd.resp = resp;
  65
  66         return iwm_hal_send_host_cmd(iwm, &udma_cmd, &umac_cmd, &lmac_cmd,
  67                                      lmac_payload, lmac_payload_size);
  68 }
  69
  70 int iwm_send_wifi_if_cmd(struct iwm_priv *iwm, void *payload, u16 payload_size,
  71                          bool resp)
  72 {
  73         struct iwm_umac_wifi_if *hdr = (struct iwm_umac_wifi_if *)payload;
  74         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
  75         struct iwm_umac_cmd umac_cmd;
  76         int ret;
  77         u8 oid = hdr->oid;
  78
  79         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
  80         umac_cmd.resp = resp;
  81
  82         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
  83                                     payload, payload_size);
  84
  85         if (resp) {
  86                 ret = wait_event_interruptible_timeout(iwm->wifi_ntfy_queue,
  87                                    test_and_clear_bit(oid, &iwm->wifi_ntfy[0]),
  88                                    3 * HZ);
  89
  90                 return ret ? 0 : -EBUSY;
  91         }
  92
  93         return ret;
  94 }
  95
  96 static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
  97 {
  98         {4, 3, 0, COEX_UNASSOC_IDLE_FLAGS},
  99         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 100         {4, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 101         {4, 3, 0, COEX_CALIBRATION_FLAGS},
 102         {4, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 103         {4, 3, 0, COEX_CONNECTION_ESTAB_FLAGS},
 104         {4, 3, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 105         {4, 3, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 106         {4, 3, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 107         {4, 3, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 108         {6, 3, 0, COEX_XOR_RF_ON_FLAGS},
 109         {4, 3, 0, COEX_RF_OFF_FLAGS},
 110         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 111         {4, 3, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 112         {4, 3, 0, COEX_RSRVD1_FLAGS},
 113         {4, 3, 0, COEX_RSRVD2_FLAGS}
 114 };
 115
 116 static struct coex_event iwm_sta_cm_prio_tbl[COEX_EVENTS_NUM] =
 117 {
 118         {1, 1, 0, COEX_UNASSOC_IDLE_FLAGS},
 119         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 120         {3, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 121         {5, 5, 0, COEX_CALIBRATION_FLAGS},
 122         {3, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 123         {5, 4, 0, COEX_CONNECTION_ESTAB_FLAGS},
 124         {4, 4, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 125         {4, 4, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 126         {4, 4, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 127         {4, 4, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 128         {1, 1, 0, COEX_RF_ON_FLAGS},
 129         {1, 1, 0, COEX_RF_OFF_FLAGS},
 130         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 131         {5, 4, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 132         {1, 1, 0, COEX_RSRVD1_FLAGS},
 133         {1, 1, 0, COEX_RSRVD2_FLAGS}
 134 };
 135
 136 int iwm_send_prio_table(struct iwm_priv *iwm)
 137 {
 138         struct iwm_coex_prio_table_cmd coex_table_cmd;
 139         u32 coex_enabled, mode_enabled;
 140
 141         memset(&coex_table_cmd, 0, sizeof(struct iwm_coex_prio_table_cmd));
 142
 143         coex_table_cmd.flags = COEX_FLAGS_STA_TABLE_VALID_MSK;
 144
 145         switch (iwm->conf.coexist_mode) {
 146         case COEX_MODE_XOR:
 147         case COEX_MODE_CM:
 148                 coex_enabled = 1;
 149                 break;
 150         default:
 151                 coex_enabled = 0;
 152                 break;
 153         }
 154
 155         switch (iwm->conf.mode) {
 156         case UMAC_MODE_BSS:
 157         case UMAC_MODE_IBSS:
 158                 mode_enabled = 1;
 159                 break;
 160         default:
 161                 mode_enabled = 0;
 162                 break;
 163         }
 164
 165         if (coex_enabled && mode_enabled) {
 166                 coex_table_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK |
 167                                         COEX_FLAGS_ASSOC_WAKEUP_UMASK_MSK |
 168                                         COEX_FLAGS_UNASSOC_WAKEUP_UMASK_MSK;
 169
 170                 switch (iwm->conf.coexist_mode) {
 171                 case COEX_MODE_XOR:
 172                         memcpy(coex_table_cmd.sta_prio, iwm_sta_xor_prio_tbl,
 173                                sizeof(iwm_sta_xor_prio_tbl));
 174                         break;
 175                 case COEX_MODE_CM:
 176                         memcpy(coex_table_cmd.sta_prio, iwm_sta_cm_prio_tbl,
 177                                sizeof(iwm_sta_cm_prio_tbl));
 178                         break;
 179                 default:
 180                         IWM_ERR(iwm, "Invalid coex_mode 0x%x\n",
 181                                 iwm->conf.coexist_mode);
 182                         break;
 183                 }
 184         } else
 185                 IWM_WARN(iwm, "coexistense disabled\n");
 186
 187         return iwm_send_lmac_ptrough_cmd(iwm, COEX_PRIORITY_TABLE_CMD,
 188                                 &coex_table_cmd,
 189                                 sizeof(struct iwm_coex_prio_table_cmd), 1);
 190 }
 191
 192 int iwm_send_init_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 193 {
 194         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 195
 196         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 197
 198         cal_cfg_cmd.ucode_cfg.init.enable = cpu_to_le32(calib_requested);
 199         cal_cfg_cmd.ucode_cfg.init.start = cpu_to_le32(calib_requested);
 200         cal_cfg_cmd.ucode_cfg.init.send_res = cpu_to_le32(calib_requested);
 201         cal_cfg_cmd.ucode_cfg.flags =
 202                 cpu_to_le32(CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_AFTER_MSK);
 203
 204         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 205                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 1);
 206 }
 207
 208 int iwm_send_periodic_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 209 {
 210         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 211
 212         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 213
 214         cal_cfg_cmd.ucode_cfg.periodic.enable = cpu_to_le32(calib_requested);
 215         cal_cfg_cmd.ucode_cfg.periodic.start = cpu_to_le32(calib_requested);
 216
 217         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 218                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 0);
 219 }
 220
 221 int iwm_store_rxiq_calib_result(struct iwm_priv *iwm)
 222 {
 223         struct iwm_calib_rxiq *rxiq;
 224         u8 *eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 225         int grplen = sizeof(struct iwm_calib_rxiq_group);
 226
 227         rxiq = kzalloc(sizeof(struct iwm_calib_rxiq), GFP_KERNEL);
 228         if (!rxiq) {
 229                 IWM_ERR(iwm, "Couldn't alloc memory for RX IQ\n");
 230                 return -ENOMEM;
 231         }
 232
 233         eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 234         if (IS_ERR(eeprom_rxiq)) {
 235                 IWM_ERR(iwm, "Couldn't access EEPROM RX IQ entry\n");
 236                 kfree(rxiq);
 237                 return PTR_ERR(eeprom_rxiq);
 238         }
 239
 240         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].buf = (u8 *)rxiq;
 241         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].size = sizeof(*rxiq);
 242
 243         rxiq->hdr.opcode = SHILOH_PHY_CALIBRATE_RX_IQ_CMD;
 244         rxiq->hdr.first_grp = 0;
 245         rxiq->hdr.grp_num = 1;
 246         rxiq->hdr.all_data_valid = 1;
 247
 248         memcpy(&rxiq->group[0], eeprom_rxiq, 4 * grplen);
 249         memcpy(&rxiq->group[4], eeprom_rxiq + 6 * grplen, grplen);
 250
 251         return 0;
 252 }
 253
 254 int iwm_send_calib_results(struct iwm_priv *iwm)
 255 {
 256         int i, ret = 0;
 257
 258         for (i = PHY_CALIBRATE_OPCODES_NUM; i < CALIBRATION_CMD_NUM; i++) {
 259                 if (test_bit(i - PHY_CALIBRATE_OPCODES_NUM,
 260                              &iwm->calib_done_map)) {
 261                         IWM_DBG_CMD(iwm, DBG,
 262                                     "Send calibration %d result\n", i);
 263                         ret |= iwm_send_lmac_ptrough_cmd(iwm,
 264                                         REPLY_PHY_CALIBRATION_CMD,
 265                                         iwm->calib_res[i].buf,
 266                                         iwm->calib_res[i].size, 0);
 267
 268                         kfree(iwm->calib_res[i].buf);
 269                         iwm->calib_res[i].buf = NULL;
 270                         iwm->calib_res[i].size = 0;
 271                 }
 272         }
 273
 274         return ret;
 275 }
 276
 277 int iwm_send_umac_reset(struct iwm_priv *iwm, __le32 reset_flags, bool resp)
 278 {
 279         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 280         struct iwm_umac_cmd umac_cmd;
 281         struct iwm_umac_cmd_reset reset;
 282
 283         reset.flags = reset_flags;
 284
 285         umac_cmd.id = UMAC_CMD_OPCODE_RESET;
 286         umac_cmd.resp = resp;
 287
 288         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &reset,
 289                                      sizeof(struct iwm_umac_cmd_reset));
 290 }
 291
 292 int iwm_umac_set_config_fix(struct iwm_priv *iwm, u16 tbl, u16 key, u32 value)
 293 {
 294         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 295         struct iwm_umac_cmd umac_cmd;
 296         struct iwm_umac_cmd_set_param_fix param;
 297
 298         if ((tbl != UMAC_PARAM_TBL_CFG_FIX) &&
 299             (tbl != UMAC_PARAM_TBL_FA_CFG_FIX))
 300                 return -EINVAL;
 301
 302         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_FIX;
 303         umac_cmd.resp = 0;
 304
 305         param.tbl = cpu_to_le16(tbl);
 306         param.key = cpu_to_le16(key);
 307         param.value = cpu_to_le32(value);
 308
 309         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &param,
 310                                      sizeof(struct iwm_umac_cmd_set_param_fix));
 311 }
 312
 313 int iwm_umac_set_config_var(struct iwm_priv *iwm, u16 key,
 314                             void *payload, u16 payload_size)
 315 {
 316         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 317         struct iwm_umac_cmd umac_cmd;
 318         struct iwm_umac_cmd_set_param_var *param_hdr;
 319         u8 *param;
 320         int ret;
 321
 322         param = kzalloc(payload_size +
 323                         sizeof(struct iwm_umac_cmd_set_param_var), GFP_KERNEL);
 324         if (!param) {
 325                 IWM_ERR(iwm, "Couldn't allocate param\n");
 326                 return -ENOMEM;
 327         }
 328
 329         param_hdr = (struct iwm_umac_cmd_set_param_var *)param;
 330
 331         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_VAR;
 332         umac_cmd.resp = 0;
 333
 334         param_hdr->tbl = cpu_to_le16(UMAC_PARAM_TBL_CFG_VAR);
 335         param_hdr->key = cpu_to_le16(key);
 336         param_hdr->len = cpu_to_le16(payload_size);
 337         memcpy(param + sizeof(struct iwm_umac_cmd_set_param_var),
 338                payload, payload_size);
 339
 340         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, param,
 341                                     sizeof(struct iwm_umac_cmd_set_param_var) +
 342                                     payload_size);
 343         kfree(param);
 344
 345         return ret;
 346 }
 347
 348 int iwm_send_umac_config(struct iwm_priv *iwm, __le32 reset_flags)
 349 {
 350         int ret;
 351
 352         /* Use UMAC default values */
 353         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 354                                       CFG_POWER_INDEX, iwm->conf.power_index);
 355         if (ret < 0)
 356                 return ret;
 357
 358         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX,
 359                                       CFG_FRAG_THRESHOLD,
 360                                       iwm->conf.frag_threshold);
 361         if (ret < 0)
 362                 return ret;
 363
 364         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 365                                       CFG_RTS_THRESHOLD,
 366                                       iwm->conf.rts_threshold);
 367         if (ret < 0)
 368                 return ret;
 369
 370         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 371                                       CFG_CTS_TO_SELF, iwm->conf.cts_to_self);
 372         if (ret < 0)
 373                 return ret;
 374
 375         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 376                                       CFG_WIRELESS_MODE,
 377                                       iwm->conf.wireless_mode);
 378         if (ret < 0)
 379                 return ret;
 380
 381         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 382                                       CFG_COEX_MODE, iwm->conf.coexist_mode);
 383         if (ret < 0)
 384                 return ret;
 385
 386         /*
 387         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 388                                       CFG_ASSOCIATION_TIMEOUT,
 389                                       iwm->conf.assoc_timeout);
 390         if (ret < 0)
 391                 return ret;
 392
 393         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 394                                       CFG_ROAM_TIMEOUT,
 395                                       iwm->conf.roam_timeout);
 396         if (ret < 0)
 397                 return ret;
 398
 399         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 400                                       CFG_WIRELESS_MODE,
 401                                       WIRELESS_MODE_11A | WIRELESS_MODE_11G);
 402         if (ret < 0)
 403                 return ret;
 404         */
 405
 406         ret = iwm_umac_set_config_var(iwm, CFG_NET_ADDR,
 407                                       iwm_to_ndev(iwm)->dev_addr, ETH_ALEN);
 408         if (ret < 0)
 409                 return ret;
 410
 411         /* UMAC PM static configurations */
 412         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 413                                       CFG_PM_LEGACY_RX_TIMEOUT, 0x12C);
 414         if (ret < 0)
 415                 return ret;
 416
 417         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 418                                       CFG_PM_LEGACY_TX_TIMEOUT, 0x15E);
 419         if (ret < 0)
 420                 return ret;
 421
 422         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 423                                       CFG_PM_CTRL_FLAGS, 0x1);
 424         if (ret < 0)
 425                 return ret;
 426
 427         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 428                                       CFG_PM_KEEP_ALIVE_IN_BEACONS, 0x80);
 429         if (ret < 0)
 430                 return ret;
 431
 432         /* reset UMAC */
 433         ret = iwm_send_umac_reset(iwm, reset_flags, 1);
 434         if (ret < 0)
 435                 return ret;
 436
 437         ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_RESET, IWM_SRC_UMAC,
 438                                WAIT_NOTIF_TIMEOUT);
 439         if (ret) {
 440                 IWM_ERR(iwm, "Wait for UMAC RESET timeout\n");
 441                 return ret;
 442         }
 443
 444         return ret;
 445 }
 446
 447 int iwm_send_packet(struct iwm_priv *iwm, struct sk_buff *skb, int pool_id)
 448 {
 449         struct iwm_udma_wifi_cmd udma_cmd;
 450         struct iwm_umac_cmd umac_cmd;
 451         struct iwm_tx_info *tx_info = skb_to_tx_info(skb);
 452
 453         udma_cmd.eop = 1; /* always set eop for non-concatenated Tx */
 454         udma_cmd.credit_group = pool_id;
 455         udma_cmd.ra_tid = tx_info->sta << 4 | tx_info->tid;
 456         udma_cmd.lmac_offset = 0;
 457
 458         umac_cmd.id = REPLY_TX;
 459         umac_cmd.color = tx_info->color;
 460         umac_cmd.resp = 0;
 461
 462         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
 463                                      skb->data, skb->len);
 464 }
 465
 466 static int iwm_target_read(struct iwm_priv *iwm, __le32 address,
 467                            u8 *response, u32 resp_size)
 468 {
 469         struct iwm_udma_nonwifi_cmd target_cmd;
 470         struct iwm_nonwifi_cmd *cmd;
 471         u16 seq_num;
 472         int ret = 0;
 473
 474         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ;
 475         target_cmd.addr = address;
 476         target_cmd.op1_sz = cpu_to_le32(resp_size);
 477         target_cmd.op2 = 0;
 478         target_cmd.handle_by_hw = 0;
 479         target_cmd.resp = 1;
 480         target_cmd.eop = 1;
 481
 482         ret = iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 483         if (ret < 0) {
 484                 IWM_ERR(iwm, "Couldn't send READ command\n");
 485                 return ret;
 486         }
 487
 488         /* When succeding, the send_target routine returns the seq number */
 489         seq_num = ret;
 490
 491         ret = wait_event_interruptible_timeout(iwm->nonwifi_queue,
 492                 (cmd = iwm_get_pending_nonwifi_cmd(iwm, seq_num,
 493                                           UMAC_HDI_OUT_OPCODE_READ)) != NULL,
 494                                                2 * HZ);
 495
 496         if (!ret) {
 497                 IWM_ERR(iwm, "Didn't receive a target READ answer\n");
 498                 return ret;
 499         }
 500
 501         memcpy(response, cmd->buf.hdr + sizeof(struct iwm_udma_in_hdr),
 502                resp_size);
 503
 504         kfree(cmd);
 505
 506         return 0;
 507 }
 508
 509 int iwm_read_mac(struct iwm_priv *iwm, u8 *mac)
 510 {
 511         int ret;
 512         u8 mac_align[ALIGN(ETH_ALEN, 8)];
 513
 514         ret = iwm_target_read(iwm, cpu_to_le32(WICO_MAC_ADDRESS_ADDR),
 515                               mac_align, sizeof(mac_align));
 516         if (ret)
 517                 return ret;
 518
 519         if (is_valid_ether_addr(mac_align))
 520                 memcpy(mac, mac_align, ETH_ALEN);
 521         else {
 522                 IWM_ERR(iwm, "Invalid EEPROM MAC\n");
 523                 memcpy(mac, iwm->conf.mac_addr, ETH_ALEN);
 524                 get_random_bytes(&mac[3], 3);
 525         }
 526
 527         return 0;
 528 }
 529
 530 static int iwm_check_profile(struct iwm_priv *iwm)
 531 {
 532         if (!iwm->umac_profile_active)
 533                 return -EAGAIN;
 534
 535         if (iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 536             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 537             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 538             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 539                 IWM_ERR(iwm, "Wrong unicast cipher: 0x%x\n",
 540                         iwm->umac_profile->sec.ucast_cipher);
 541                 return -EAGAIN;
 542         }
 543
 544         if (iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 545             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 546             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 547             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 548                 IWM_ERR(iwm, "Wrong multicast cipher: 0x%x\n",
 549                         iwm->umac_profile->sec.mcast_cipher);
 550                 return -EAGAIN;
 551         }
 552
 553         if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 ||
 554              iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) &&
 555             (iwm->umac_profile->sec.ucast_cipher !=
 556              iwm->umac_profile->sec.mcast_cipher)) {
 557                 IWM_ERR(iwm, "Unicast and multicast ciphers differ for WEP\n");
 558         }
 559
 560         return 0;
 561 }
 562
 563 int iwm_set_tx_key(struct iwm_priv *iwm, u8 key_idx)
 564 {
 565         struct iwm_umac_tx_key_id tx_key_id;
 566         int ret;
 567
 568         ret = iwm_check_profile(iwm);
 569         if (ret < 0)
 570                 return ret;
 571
 572         /* UMAC only allows to set default key for WEP and auth type is
 573          * NOT 802.1X or RSNA. */
 574         if ((iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 575              iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104) ||
 576             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_8021X ||
 577             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_RSNA_PSK)
 578                 return 0;
 579
 580         tx_key_id.hdr.oid = UMAC_WIFI_IF_CMD_GLOBAL_TX_KEY_ID;
 581         tx_key_id.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_tx_key_id) -
 582                                              sizeof(struct iwm_umac_wifi_if));
 583
 584         tx_key_id.key_idx = key_idx;
 585
 586         return iwm_send_wifi_if_cmd(iwm, &tx_key_id, sizeof(tx_key_id), 1);
 587 }
 588
 589 int iwm_set_key(struct iwm_priv *iwm, bool remove, struct iwm_key *key)
 590 {
 591         int ret = 0;
 592         u8 cmd[64], *sta_addr, *key_data, key_len;
 593         s8 key_idx;
 594         u16 cmd_size = 0;
 595         struct iwm_umac_key_hdr *key_hdr = &key->hdr;
 596         struct iwm_umac_key_wep40 *wep40 = (struct iwm_umac_key_wep40 *)cmd;
 597         struct iwm_umac_key_wep104 *wep104 = (struct iwm_umac_key_wep104 *)cmd;
 598         struct iwm_umac_key_tkip *tkip = (struct iwm_umac_key_tkip *)cmd;
 599         struct iwm_umac_key_ccmp *ccmp = (struct iwm_umac_key_ccmp *)cmd;
 600
 601         if (!remove) {
 602                 ret = iwm_check_profile(iwm);
 603                 if (ret < 0)
 604                         return ret;
 605         }
 606
 607         sta_addr = key->hdr.mac;
 608         key_data = key->key;
 609         key_len = key->key_len;
 610         key_idx = key->hdr.key_idx;
 611
 612         if (!remove) {
 613                 u8 auth_type = iwm->umac_profile->sec.auth_type;
 614
 615                 IWM_DBG_WEXT(iwm, DBG, "key_idx:%d\n", key_idx);
 616                 IWM_DBG_WEXT(iwm, DBG, "key_len:%d\n", key_len);
 617                 IWM_DBG_WEXT(iwm, DBG, "MAC:%pM, idx:%d, multicast:%d\n",
 618                        key_hdr->mac, key_hdr->key_idx, key_hdr->multicast);
 619
 620                 IWM_DBG_WEXT(iwm, DBG, "profile: mcast:0x%x, ucast:0x%x\n",
 621                              iwm->umac_profile->sec.mcast_cipher,
 622                              iwm->umac_profile->sec.ucast_cipher);
 623                 IWM_DBG_WEXT(iwm, DBG, "profile: auth_type:0x%x, flags:0x%x\n",
 624                              iwm->umac_profile->sec.auth_type,
 625                              iwm->umac_profile->sec.flags);
 626
 627                 switch (key->cipher) {
 628                 case WLAN_CIPHER_SUITE_WEP40:
 629                         wep40->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP40_KEY;
 630                         wep40->hdr.buf_size =
 631                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep40) -
 632                                             sizeof(struct iwm_umac_wifi_if));
 633
 634                         memcpy(&wep40->key_hdr, key_hdr,
 635                                sizeof(struct iwm_umac_key_hdr));
 636                         memcpy(wep40->key, key_data, key_len);
 637                         wep40->static_key =
 638                                 !!((auth_type != UMAC_AUTH_TYPE_8021X) &&
 639                                    (auth_type != UMAC_AUTH_TYPE_RSNA_PSK));
 640
 641                         cmd_size = sizeof(struct iwm_umac_key_wep40);
 642                         break;
 643
 644                 case WLAN_CIPHER_SUITE_WEP104:
 645                         wep104->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP104_KEY;
 646                         wep104->hdr.buf_size =
 647                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep104) -
 648                                             sizeof(struct iwm_umac_wifi_if));
 649
 650                         memcpy(&wep104->key_hdr, key_hdr,
 651                                sizeof(struct iwm_umac_key_hdr));
 652                         memcpy(wep104->key, key_data, key_len);
 653                         wep104->static_key =
 654                                 !!((auth_type != UMAC_AUTH_TYPE_8021X) &&
 655                                    (auth_type != UMAC_AUTH_TYPE_RSNA_PSK));
 656
 657                         cmd_size = sizeof(struct iwm_umac_key_wep104);
 658                         break;
 659
 660                 case WLAN_CIPHER_SUITE_CCMP:
 661                         key_hdr->key_idx++;
 662                         ccmp->hdr.oid = UMAC_WIFI_IF_CMD_ADD_CCMP_KEY;
 663                         ccmp->hdr.buf_size =
 664                                 cpu_to_le16(sizeof(struct iwm_umac_key_ccmp) -
 665                                             sizeof(struct iwm_umac_wifi_if));
 666
 667                         memcpy(&ccmp->key_hdr, key_hdr,
 668                                sizeof(struct iwm_umac_key_hdr));
 669
 670                         memcpy(ccmp->key, key_data, key_len);
 671
 672                         if (key->seq_len)
 673                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 674
 675                         cmd_size = sizeof(struct iwm_umac_key_ccmp);
 676                         break;
 677
 678                 case WLAN_CIPHER_SUITE_TKIP:
 679                         key_hdr->key_idx++;
 680                         tkip->hdr.oid = UMAC_WIFI_IF_CMD_ADD_TKIP_KEY;
 681                         tkip->hdr.buf_size =
 682                                 cpu_to_le16(sizeof(struct iwm_umac_key_tkip) -
 683                                             sizeof(struct iwm_umac_wifi_if));
 684
 685                         memcpy(&tkip->key_hdr, key_hdr,
 686                                sizeof(struct iwm_umac_key_hdr));
 687
 688                         memcpy(tkip->tkip_key, key_data, IWM_TKIP_KEY_SIZE);
 689                         memcpy(tkip->mic_tx_key, key_data + IWM_TKIP_KEY_SIZE,
 690                                IWM_TKIP_MIC_SIZE);
 691                         memcpy(tkip->mic_rx_key,
 692                                key_data + IWM_TKIP_KEY_SIZE + IWM_TKIP_MIC_SIZE,
 693                                IWM_TKIP_MIC_SIZE);
 694
 695                         if (key->seq_len)
 696                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 697
 698                         cmd_size = sizeof(struct iwm_umac_key_tkip);
 699                         break;
 700
 701                 default:
 702                         return -ENOTSUPP;
 703                 }
 704
 705                 if ((key->cipher == WLAN_CIPHER_SUITE_TKIP) ||
 706                     (key->cipher == WLAN_CIPHER_SUITE_CCMP))
 707                         /*
 708                          * UGLY_UGLY_UGLY
 709                          * Copied HACK from the MWG driver.
 710                          * Without it, the key is set before the second
 711                          * EAPOL frame is sent, and the latter is thus
 712                          * encrypted.
 713                          */
 714                         schedule_timeout_interruptible(usecs_to_jiffies(300));
 715
 716                 ret =  iwm_send_wifi_if_cmd(iwm, cmd, cmd_size, 1);
 717         } else {
 718                 struct iwm_umac_key_remove key_remove;
 719
 720                 IWM_DBG_WEXT(iwm, ERR, "Removing key_idx:%d\n", key_idx);
 721
 722                 key_remove.hdr.oid = UMAC_WIFI_IF_CMD_REMOVE_KEY;
 723                 key_remove.hdr.buf_size =
 724                         cpu_to_le16(sizeof(struct iwm_umac_key_remove) -
 725                                     sizeof(struct iwm_umac_wifi_if));
 726                 memcpy(&key_remove.key_hdr, key_hdr,
 727                        sizeof(struct iwm_umac_key_hdr));
 728
 729                 ret =  iwm_send_wifi_if_cmd(iwm, &key_remove,
 730                                             sizeof(struct iwm_umac_key_remove),
 731                                             1);
 732                 if (ret)
 733                         return ret;
 734
 735                 iwm->keys[key_idx].key_len = 0;
 736         }
 737
 738         return ret;
 739 }
 740
 741
 742 int iwm_send_mlme_profile(struct iwm_priv *iwm)
 743 {
 744         int ret;
 745         struct iwm_umac_profile profile;
 746
 747         memcpy(&profile, iwm->umac_profile, sizeof(profile));
 748
 749         profile.hdr.oid = UMAC_WIFI_IF_CMD_SET_PROFILE;
 750         profile.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_profile) -
 751                                            sizeof(struct iwm_umac_wifi_if));
 752
 753         ret = iwm_send_wifi_if_cmd(iwm, &profile, sizeof(profile), 1);
 754         if (ret) {
 755                 IWM_ERR(iwm, "Send profile command failed\n");
 756                 return ret;
 757         }
 758
 759         return 0;
 760 }
 761
 762 int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
 763 {
 764         struct iwm_umac_invalidate_profile invalid;
 765         int ret;
 766
 767         invalid.hdr.oid = UMAC_WIFI_IF_CMD_INVALIDATE_PROFILE;
 768         invalid.hdr.buf_size =
 769                 cpu_to_le16(sizeof(struct iwm_umac_invalidate_profile) -
 770                             sizeof(struct iwm_umac_wifi_if));
 771
 772         invalid.reason = WLAN_REASON_UNSPECIFIED;
 773
 774         ret = iwm_send_wifi_if_cmd(iwm, &invalid, sizeof(invalid), 1);
 775         if (ret)
 776                 return ret;
 777
 778         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 779                                 (iwm->umac_profile_active == 0), 2 * HZ);
 780
 781         return ret ? 0 : -EBUSY;
 782 }
 783
 784 int iwm_send_umac_stats_req(struct iwm_priv *iwm, u32 flags)
 785 {
 786         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 787         struct iwm_umac_cmd umac_cmd;
 788         struct iwm_umac_cmd_stats_req stats_req;
 789
 790         stats_req.flags = cpu_to_le32(flags);
 791
 792         umac_cmd.id = UMAC_CMD_OPCODE_STATISTIC_REQUEST;
 793         umac_cmd.resp = 0;
 794
 795         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stats_req,
 796                                      sizeof(struct iwm_umac_cmd_stats_req));
 797 }
 798
 799 int iwm_send_umac_channel_list(struct iwm_priv *iwm)
 800 {
 801         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 802         struct iwm_umac_cmd umac_cmd;
 803         struct iwm_umac_cmd_get_channel_list *ch_list;
 804         int size = sizeof(struct iwm_umac_cmd_get_channel_list) +
 805                    sizeof(struct iwm_umac_channel_info) * 4;
 806         int ret;
 807
 808         ch_list = kzalloc(size, GFP_KERNEL);
 809         if (!ch_list) {
 810                 IWM_ERR(iwm, "Couldn't allocate channel list cmd\n");
 811                 return -ENOMEM;
 812         }
 813
 814         ch_list->ch[0].band = UMAC_BAND_2GHZ;
 815         ch_list->ch[0].type = UMAC_CHANNEL_WIDTH_20MHZ;
 816         ch_list->ch[0].flags = UMAC_CHANNEL_FLAG_VALID;
 817
 818         ch_list->ch[1].band = UMAC_BAND_5GHZ;
 819         ch_list->ch[1].type = UMAC_CHANNEL_WIDTH_20MHZ;
 820         ch_list->ch[1].flags = UMAC_CHANNEL_FLAG_VALID;
 821
 822         ch_list->ch[2].band = UMAC_BAND_2GHZ;
 823         ch_list->ch[2].type = UMAC_CHANNEL_WIDTH_20MHZ;
 824         ch_list->ch[2].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 825
 826         ch_list->ch[3].band = UMAC_BAND_5GHZ;
 827         ch_list->ch[3].type = UMAC_CHANNEL_WIDTH_20MHZ;
 828         ch_list->ch[3].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 829
 830         ch_list->count = cpu_to_le16(4);
 831
 832         umac_cmd.id = UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST;
 833         umac_cmd.resp = 1;
 834
 835         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, ch_list, size);
 836
 837         kfree(ch_list);
 838
 839         return ret;
 840 }
 841
 842 int iwm_scan_ssids(struct iwm_priv *iwm, struct cfg80211_ssid *ssids,
 843                    int ssid_num)
 844 {
 845         struct iwm_umac_cmd_scan_request req;
 846         int i, ret;
 847
 848         memset(&req, 0, sizeof(struct iwm_umac_cmd_scan_request));
 849
 850         req.hdr.oid = UMAC_WIFI_IF_CMD_SCAN_REQUEST;
 851         req.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_cmd_scan_request)
 852                                        - sizeof(struct iwm_umac_wifi_if));
 853         req.type = UMAC_WIFI_IF_SCAN_TYPE_USER;
 854         req.timeout = 2;
 855         req.seq_num = iwm->scan_id;
 856         req.ssid_num = min(ssid_num, UMAC_WIFI_IF_PROBE_OPTION_MAX);
 857
 858         for (i = 0; i < req.ssid_num; i++) {
 859                 memcpy(req.ssids[i].ssid, ssids[i].ssid, ssids[i].ssid_len);
 860                 req.ssids[i].ssid_len = ssids[i].ssid_len;
 861         }
 862
 863         ret = iwm_send_wifi_if_cmd(iwm, &req, sizeof(req), 0);
 864         if (ret) {
 865                 IWM_ERR(iwm, "Couldn't send scan request\n");
 866                 return ret;
 867         }
 868
 869         iwm->scan_id = iwm->scan_id++ % IWM_SCAN_ID_MAX;
 870
 871         return 0;
 872 }
 873
 874 int iwm_scan_one_ssid(struct iwm_priv *iwm, u8 *ssid, int ssid_len)
 875 {
 876         struct cfg80211_ssid one_ssid;
 877
 878         if (test_and_set_bit(IWM_STATUS_SCANNING, &iwm->status))
 879                 return 0;
 880
 881         one_ssid.ssid_len = min(ssid_len, IEEE80211_MAX_SSID_LEN);
 882         memcpy(&one_ssid.ssid, ssid, one_ssid.ssid_len);
 883
 884         return iwm_scan_ssids(iwm, &one_ssid, 1);
 885 }
 886
 887 int iwm_target_reset(struct iwm_priv *iwm)
 888 {
 889         struct iwm_udma_nonwifi_cmd target_cmd;
 890
 891         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_REBOOT;
 892         target_cmd.addr = 0;
 893         target_cmd.op1_sz = 0;
 894         target_cmd.op2 = 0;
 895         target_cmd.handle_by_hw = 0;
 896         target_cmd.resp = 0;
 897         target_cmd.eop = 1;
 898
 899         return iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 900 }