SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 #include <linux/sched.h>
  44
  45 #include "iwm.h"
  46 #include "bus.h"
  47 #include "hal.h"
  48 #include "umac.h"
  49 #include "commands.h"
  50 #include "debug.h"
  51
  52 static int iwm_send_lmac_ptrough_cmd(struct iwm_priv *iwm,
  53                                      u8 lmac_cmd_id,
  54                                      const void *lmac_payload,
  55                                      u16 lmac_payload_size,
  56                                      u8 resp)
  57 {
  58         struct iwm_udma_wifi_cmd udma_cmd = UDMA_LMAC_INIT;
  59         struct iwm_umac_cmd umac_cmd;
  60         struct iwm_lmac_cmd lmac_cmd;
  61
  62         lmac_cmd.id = lmac_cmd_id;
  63
  64         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_PASS_THROUGH;
  65         umac_cmd.resp = resp;
  66
  67         return iwm_hal_send_host_cmd(iwm, &udma_cmd, &umac_cmd, &lmac_cmd,
  68                                      lmac_payload, lmac_payload_size);
  69 }
  70
  71 int iwm_send_wifi_if_cmd(struct iwm_priv *iwm, void *payload, u16 payload_size,
  72                          bool resp)
  73 {
  74         struct iwm_umac_wifi_if *hdr = (struct iwm_umac_wifi_if *)payload;
  75         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
  76         struct iwm_umac_cmd umac_cmd;
  77         int ret;
  78         u8 oid = hdr->oid;
  79
  80         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
  81         umac_cmd.resp = resp;
  82
  83         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
  84                                     payload, payload_size);
  85
  86         if (resp) {
  87                 ret = wait_event_interruptible_timeout(iwm->wifi_ntfy_queue,
  88                                    test_and_clear_bit(oid, &iwm->wifi_ntfy[0]),
  89                                    3 * HZ);
  90
  91                 return ret ? 0 : -EBUSY;
  92         }
  93
  94         return ret;
  95 }
  96
  97 static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
  98 {
  99         {4, 3, 0, COEX_UNASSOC_IDLE_FLAGS},
 100         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 101         {4, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 102         {4, 3, 0, COEX_CALIBRATION_FLAGS},
 103         {4, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 104         {4, 3, 0, COEX_CONNECTION_ESTAB_FLAGS},
 105         {4, 3, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 106         {4, 3, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 107         {4, 3, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 108         {4, 3, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 109         {6, 3, 0, COEX_XOR_RF_ON_FLAGS},
 110         {4, 3, 0, COEX_RF_OFF_FLAGS},
 111         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 112         {4, 3, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 113         {4, 3, 0, COEX_RSRVD1_FLAGS},
 114         {4, 3, 0, COEX_RSRVD2_FLAGS}
 115 };
 116
 117 static struct coex_event iwm_sta_cm_prio_tbl[COEX_EVENTS_NUM] =
 118 {
 119         {1, 1, 0, COEX_UNASSOC_IDLE_FLAGS},
 120         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 121         {3, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 122         {5, 5, 0, COEX_CALIBRATION_FLAGS},
 123         {3, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 124         {5, 4, 0, COEX_CONNECTION_ESTAB_FLAGS},
 125         {4, 4, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 126         {4, 4, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 127         {4, 4, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 128         {4, 4, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 129         {1, 1, 0, COEX_RF_ON_FLAGS},
 130         {1, 1, 0, COEX_RF_OFF_FLAGS},
 131         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 132         {5, 4, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 133         {1, 1, 0, COEX_RSRVD1_FLAGS},
 134         {1, 1, 0, COEX_RSRVD2_FLAGS}
 135 };
 136
 137 int iwm_send_prio_table(struct iwm_priv *iwm)
 138 {
 139         struct iwm_coex_prio_table_cmd coex_table_cmd;
 140         u32 coex_enabled, mode_enabled;
 141
 142         memset(&coex_table_cmd, 0, sizeof(struct iwm_coex_prio_table_cmd));
 143
 144         coex_table_cmd.flags = COEX_FLAGS_STA_TABLE_VALID_MSK;
 145
 146         switch (iwm->conf.coexist_mode) {
 147         case COEX_MODE_XOR:
 148         case COEX_MODE_CM:
 149                 coex_enabled = 1;
 150                 break;
 151         default:
 152                 coex_enabled = 0;
 153                 break;
 154         }
 155
 156         switch (iwm->conf.mode) {
 157         case UMAC_MODE_BSS:
 158         case UMAC_MODE_IBSS:
 159                 mode_enabled = 1;
 160                 break;
 161         default:
 162                 mode_enabled = 0;
 163                 break;
 164         }
 165
 166         if (coex_enabled && mode_enabled) {
 167                 coex_table_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK |
 168                                         COEX_FLAGS_ASSOC_WAKEUP_UMASK_MSK |
 169                                         COEX_FLAGS_UNASSOC_WAKEUP_UMASK_MSK;
 170
 171                 switch (iwm->conf.coexist_mode) {
 172                 case COEX_MODE_XOR:
 173                         memcpy(coex_table_cmd.sta_prio, iwm_sta_xor_prio_tbl,
 174                                sizeof(iwm_sta_xor_prio_tbl));
 175                         break;
 176                 case COEX_MODE_CM:
 177                         memcpy(coex_table_cmd.sta_prio, iwm_sta_cm_prio_tbl,
 178                                sizeof(iwm_sta_cm_prio_tbl));
 179                         break;
 180                 default:
 181                         IWM_ERR(iwm, "Invalid coex_mode 0x%x\n",
 182                                 iwm->conf.coexist_mode);
 183                         break;
 184                 }
 185         } else
 186                 IWM_WARN(iwm, "coexistense disabled\n");
 187
 188         return iwm_send_lmac_ptrough_cmd(iwm, COEX_PRIORITY_TABLE_CMD,
 189                                 &coex_table_cmd,
 190                                 sizeof(struct iwm_coex_prio_table_cmd), 1);
 191 }
 192
 193 int iwm_send_init_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 194 {
 195         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 196
 197         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 198
 199         cal_cfg_cmd.ucode_cfg.init.enable = cpu_to_le32(calib_requested);
 200         cal_cfg_cmd.ucode_cfg.init.start = cpu_to_le32(calib_requested);
 201         cal_cfg_cmd.ucode_cfg.init.send_res = cpu_to_le32(calib_requested);
 202         cal_cfg_cmd.ucode_cfg.flags =
 203                 cpu_to_le32(CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_AFTER_MSK);
 204
 205         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 206                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 1);
 207 }
 208
 209 int iwm_send_periodic_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 210 {
 211         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 212
 213         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 214
 215         cal_cfg_cmd.ucode_cfg.periodic.enable = cpu_to_le32(calib_requested);
 216         cal_cfg_cmd.ucode_cfg.periodic.start = cpu_to_le32(calib_requested);
 217
 218         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 219                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 0);
 220 }
 221
 222 int iwm_store_rxiq_calib_result(struct iwm_priv *iwm)
 223 {
 224         struct iwm_calib_rxiq *rxiq;
 225         u8 *eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 226         int grplen = sizeof(struct iwm_calib_rxiq_group);
 227
 228         rxiq = kzalloc(sizeof(struct iwm_calib_rxiq), GFP_KERNEL);
 229         if (!rxiq) {
 230                 IWM_ERR(iwm, "Couldn't alloc memory for RX IQ\n");
 231                 return -ENOMEM;
 232         }
 233
 234         eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 235         if (IS_ERR(eeprom_rxiq)) {
 236                 IWM_ERR(iwm, "Couldn't access EEPROM RX IQ entry\n");
 237                 kfree(rxiq);
 238                 return PTR_ERR(eeprom_rxiq);
 239         }
 240
 241         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].buf = (u8 *)rxiq;
 242         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].size = sizeof(*rxiq);
 243
 244         rxiq->hdr.opcode = SHILOH_PHY_CALIBRATE_RX_IQ_CMD;
 245         rxiq->hdr.first_grp = 0;
 246         rxiq->hdr.grp_num = 1;
 247         rxiq->hdr.all_data_valid = 1;
 248
 249         memcpy(&rxiq->group[0], eeprom_rxiq, 4 * grplen);
 250         memcpy(&rxiq->group[4], eeprom_rxiq + 6 * grplen, grplen);
 251
 252         return 0;
 253 }
 254
 255 int iwm_send_calib_results(struct iwm_priv *iwm)
 256 {
 257         int i, ret = 0;
 258
 259         for (i = PHY_CALIBRATE_OPCODES_NUM; i < CALIBRATION_CMD_NUM; i++) {
 260                 if (test_bit(i - PHY_CALIBRATE_OPCODES_NUM,
 261                              &iwm->calib_done_map)) {
 262                         IWM_DBG_CMD(iwm, DBG,
 263                                     "Send calibration %d result\n", i);
 264                         ret |= iwm_send_lmac_ptrough_cmd(iwm,
 265                                         REPLY_PHY_CALIBRATION_CMD,
 266                                         iwm->calib_res[i].buf,
 267                                         iwm->calib_res[i].size, 0);
 268
 269                         kfree(iwm->calib_res[i].buf);
 270                         iwm->calib_res[i].buf = NULL;
 271                         iwm->calib_res[i].size = 0;
 272                 }
 273         }
 274
 275         return ret;
 276 }
 277
 278 int iwm_send_umac_reset(struct iwm_priv *iwm, __le32 reset_flags, bool resp)
 279 {
 280         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 281         struct iwm_umac_cmd umac_cmd;
 282         struct iwm_umac_cmd_reset reset;
 283
 284         reset.flags = reset_flags;
 285
 286         umac_cmd.id = UMAC_CMD_OPCODE_RESET;
 287         umac_cmd.resp = resp;
 288
 289         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &reset,
 290                                      sizeof(struct iwm_umac_cmd_reset));
 291 }
 292
 293 int iwm_umac_set_config_fix(struct iwm_priv *iwm, u16 tbl, u16 key, u32 value)
 294 {
 295         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 296         struct iwm_umac_cmd umac_cmd;
 297         struct iwm_umac_cmd_set_param_fix param;
 298
 299         if ((tbl != UMAC_PARAM_TBL_CFG_FIX) &&
 300             (tbl != UMAC_PARAM_TBL_FA_CFG_FIX))
 301                 return -EINVAL;
 302
 303         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_FIX;
 304         umac_cmd.resp = 0;
 305
 306         param.tbl = cpu_to_le16(tbl);
 307         param.key = cpu_to_le16(key);
 308         param.value = cpu_to_le32(value);
 309
 310         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &param,
 311                                      sizeof(struct iwm_umac_cmd_set_param_fix));
 312 }
 313
 314 int iwm_umac_set_config_var(struct iwm_priv *iwm, u16 key,
 315                             void *payload, u16 payload_size)
 316 {
 317         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 318         struct iwm_umac_cmd umac_cmd;
 319         struct iwm_umac_cmd_set_param_var *param_hdr;
 320         u8 *param;
 321         int ret;
 322
 323         param = kzalloc(payload_size +
 324                         sizeof(struct iwm_umac_cmd_set_param_var), GFP_KERNEL);
 325         if (!param) {
 326                 IWM_ERR(iwm, "Couldn't allocate param\n");
 327                 return -ENOMEM;
 328         }
 329
 330         param_hdr = (struct iwm_umac_cmd_set_param_var *)param;
 331
 332         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_VAR;
 333         umac_cmd.resp = 0;
 334
 335         param_hdr->tbl = cpu_to_le16(UMAC_PARAM_TBL_CFG_VAR);
 336         param_hdr->key = cpu_to_le16(key);
 337         param_hdr->len = cpu_to_le16(payload_size);
 338         memcpy(param + sizeof(struct iwm_umac_cmd_set_param_var),
 339                payload, payload_size);
 340
 341         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, param,
 342                                     sizeof(struct iwm_umac_cmd_set_param_var) +
 343                                     payload_size);
 344         kfree(param);
 345
 346         return ret;
 347 }
 348
 349 int iwm_send_umac_config(struct iwm_priv *iwm, __le32 reset_flags)
 350 {
 351         int ret;
 352
 353         /* Use UMAC default values */
 354         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 355                                       CFG_POWER_INDEX, iwm->conf.power_index);
 356         if (ret < 0)
 357                 return ret;
 358
 359         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX,
 360                                       CFG_FRAG_THRESHOLD,
 361                                       iwm->conf.frag_threshold);
 362         if (ret < 0)
 363                 return ret;
 364
 365         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 366                                       CFG_RTS_THRESHOLD,
 367                                       iwm->conf.rts_threshold);
 368         if (ret < 0)
 369                 return ret;
 370
 371         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 372                                       CFG_CTS_TO_SELF, iwm->conf.cts_to_self);
 373         if (ret < 0)
 374                 return ret;
 375
 376         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 377                                       CFG_WIRELESS_MODE,
 378                                       iwm->conf.wireless_mode);
 379         if (ret < 0)
 380                 return ret;
 381
 382         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 383                                       CFG_COEX_MODE, iwm->conf.coexist_mode);
 384         if (ret < 0)
 385                 return ret;
 386
 387         /*
 388         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 389                                       CFG_ASSOCIATION_TIMEOUT,
 390                                       iwm->conf.assoc_timeout);
 391         if (ret < 0)
 392                 return ret;
 393
 394         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 395                                       CFG_ROAM_TIMEOUT,
 396                                       iwm->conf.roam_timeout);
 397         if (ret < 0)
 398                 return ret;
 399
 400         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 401                                       CFG_WIRELESS_MODE,
 402                                       WIRELESS_MODE_11A | WIRELESS_MODE_11G);
 403         if (ret < 0)
 404                 return ret;
 405         */
 406
 407         ret = iwm_umac_set_config_var(iwm, CFG_NET_ADDR,
 408                                       iwm_to_ndev(iwm)->dev_addr, ETH_ALEN);
 409         if (ret < 0)
 410                 return ret;
 411
 412         /* UMAC PM static configurations */
 413         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 414                                       CFG_PM_LEGACY_RX_TIMEOUT, 0x12C);
 415         if (ret < 0)
 416                 return ret;
 417
 418         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 419                                       CFG_PM_LEGACY_TX_TIMEOUT, 0x15E);
 420         if (ret < 0)
 421                 return ret;
 422
 423         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 424                                       CFG_PM_CTRL_FLAGS, 0x1);
 425         if (ret < 0)
 426                 return ret;
 427
 428         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 429                                       CFG_PM_KEEP_ALIVE_IN_BEACONS, 0x80);
 430         if (ret < 0)
 431                 return ret;
 432
 433         /* reset UMAC */
 434         ret = iwm_send_umac_reset(iwm, reset_flags, 1);
 435         if (ret < 0)
 436                 return ret;
 437
 438         ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_RESET, IWM_SRC_UMAC,
 439                                WAIT_NOTIF_TIMEOUT);
 440         if (ret) {
 441                 IWM_ERR(iwm, "Wait for UMAC RESET timeout\n");
 442                 return ret;
 443         }
 444
 445         return ret;
 446 }
 447
 448 int iwm_send_packet(struct iwm_priv *iwm, struct sk_buff *skb, int pool_id)
 449 {
 450         struct iwm_udma_wifi_cmd udma_cmd;
 451         struct iwm_umac_cmd umac_cmd;
 452         struct iwm_tx_info *tx_info = skb_to_tx_info(skb);
 453
 454         udma_cmd.eop = 1; /* always set eop for non-concatenated Tx */
 455         udma_cmd.credit_group = pool_id;
 456         udma_cmd.ra_tid = tx_info->sta << 4 | tx_info->tid;
 457         udma_cmd.lmac_offset = 0;
 458
 459         umac_cmd.id = REPLY_TX;
 460         umac_cmd.color = tx_info->color;
 461         umac_cmd.resp = 0;
 462
 463         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
 464                                      skb->data, skb->len);
 465 }
 466
 467 static int iwm_target_read(struct iwm_priv *iwm, __le32 address,
 468                            u8 *response, u32 resp_size)
 469 {
 470         struct iwm_udma_nonwifi_cmd target_cmd;
 471         struct iwm_nonwifi_cmd *cmd;
 472         u16 seq_num;
 473         int ret = 0;
 474
 475         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ;
 476         target_cmd.addr = address;
 477         target_cmd.op1_sz = cpu_to_le32(resp_size);
 478         target_cmd.op2 = 0;
 479         target_cmd.handle_by_hw = 0;
 480         target_cmd.resp = 1;
 481         target_cmd.eop = 1;
 482
 483         ret = iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 484         if (ret < 0) {
 485                 IWM_ERR(iwm, "Couldn't send READ command\n");
 486                 return ret;
 487         }
 488
 489         /* When succeding, the send_target routine returns the seq number */
 490         seq_num = ret;
 491
 492         ret = wait_event_interruptible_timeout(iwm->nonwifi_queue,
 493                 (cmd = iwm_get_pending_nonwifi_cmd(iwm, seq_num,
 494                                           UMAC_HDI_OUT_OPCODE_READ)) != NULL,
 495                                                2 * HZ);
 496
 497         if (!ret) {
 498                 IWM_ERR(iwm, "Didn't receive a target READ answer\n");
 499                 return ret;
 500         }
 501
 502         memcpy(response, cmd->buf.hdr + sizeof(struct iwm_udma_in_hdr),
 503                resp_size);
 504
 505         kfree(cmd);
 506
 507         return 0;
 508 }
 509
 510 int iwm_read_mac(struct iwm_priv *iwm, u8 *mac)
 511 {
 512         int ret;
 513         u8 mac_align[ALIGN(ETH_ALEN, 8)];
 514
 515         ret = iwm_target_read(iwm, cpu_to_le32(WICO_MAC_ADDRESS_ADDR),
 516                               mac_align, sizeof(mac_align));
 517         if (ret)
 518                 return ret;
 519
 520         if (is_valid_ether_addr(mac_align))
 521                 memcpy(mac, mac_align, ETH_ALEN);
 522         else {
 523                 IWM_ERR(iwm, "Invalid EEPROM MAC\n");
 524                 memcpy(mac, iwm->conf.mac_addr, ETH_ALEN);
 525                 get_random_bytes(&mac[3], 3);
 526         }
 527
 528         return 0;
 529 }
 530
 531 static int iwm_check_profile(struct iwm_priv *iwm)
 532 {
 533         if (!iwm->umac_profile_active)
 534                 return -EAGAIN;
 535
 536         if (iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 537             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 538             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 539             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 540                 IWM_ERR(iwm, "Wrong unicast cipher: 0x%x\n",
 541                         iwm->umac_profile->sec.ucast_cipher);
 542                 return -EAGAIN;
 543         }
 544
 545         if (iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 546             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 547             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 548             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 549                 IWM_ERR(iwm, "Wrong multicast cipher: 0x%x\n",
 550                         iwm->umac_profile->sec.mcast_cipher);
 551                 return -EAGAIN;
 552         }
 553
 554         if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 ||
 555              iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) &&
 556             (iwm->umac_profile->sec.ucast_cipher !=
 557              iwm->umac_profile->sec.mcast_cipher)) {
 558                 IWM_ERR(iwm, "Unicast and multicast ciphers differ for WEP\n");
 559         }
 560
 561         return 0;
 562 }
 563
 564 int iwm_set_tx_key(struct iwm_priv *iwm, u8 key_idx)
 565 {
 566         struct iwm_umac_tx_key_id tx_key_id;
 567         int ret;
 568
 569         ret = iwm_check_profile(iwm);
 570         if (ret < 0)
 571                 return ret;
 572
 573         /* UMAC only allows to set default key for WEP and auth type is
 574          * NOT 802.1X or RSNA. */
 575         if ((iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 576              iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104) ||
 577             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_8021X ||
 578             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_RSNA_PSK)
 579                 return 0;
 580
 581         tx_key_id.hdr.oid = UMAC_WIFI_IF_CMD_GLOBAL_TX_KEY_ID;
 582         tx_key_id.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_tx_key_id) -
 583                                              sizeof(struct iwm_umac_wifi_if));
 584
 585         tx_key_id.key_idx = key_idx;
 586
 587         return iwm_send_wifi_if_cmd(iwm, &tx_key_id, sizeof(tx_key_id), 1);
 588 }
 589
 590 int iwm_set_key(struct iwm_priv *iwm, bool remove, struct iwm_key *key)
 591 {
 592         int ret = 0;
 593         u8 cmd[64], *sta_addr, *key_data, key_len;
 594         s8 key_idx;
 595         u16 cmd_size = 0;
 596         struct iwm_umac_key_hdr *key_hdr = &key->hdr;
 597         struct iwm_umac_key_wep40 *wep40 = (struct iwm_umac_key_wep40 *)cmd;
 598         struct iwm_umac_key_wep104 *wep104 = (struct iwm_umac_key_wep104 *)cmd;
 599         struct iwm_umac_key_tkip *tkip = (struct iwm_umac_key_tkip *)cmd;
 600         struct iwm_umac_key_ccmp *ccmp = (struct iwm_umac_key_ccmp *)cmd;
 601
 602         if (!remove) {
 603                 ret = iwm_check_profile(iwm);
 604                 if (ret < 0)
 605                         return ret;
 606         }
 607
 608         sta_addr = key->hdr.mac;
 609         key_data = key->key;
 610         key_len = key->key_len;
 611         key_idx = key->hdr.key_idx;
 612
 613         if (!remove) {
 614                 u8 auth_type = iwm->umac_profile->sec.auth_type;
 615
 616                 IWM_DBG_WEXT(iwm, DBG, "key_idx:%d\n", key_idx);
 617                 IWM_DBG_WEXT(iwm, DBG, "key_len:%d\n", key_len);
 618                 IWM_DBG_WEXT(iwm, DBG, "MAC:%pM, idx:%d, multicast:%d\n",
 619                        key_hdr->mac, key_hdr->key_idx, key_hdr->multicast);
 620
 621                 IWM_DBG_WEXT(iwm, DBG, "profile: mcast:0x%x, ucast:0x%x\n",
 622                              iwm->umac_profile->sec.mcast_cipher,
 623                              iwm->umac_profile->sec.ucast_cipher);
 624                 IWM_DBG_WEXT(iwm, DBG, "profile: auth_type:0x%x, flags:0x%x\n",
 625                              iwm->umac_profile->sec.auth_type,
 626                              iwm->umac_profile->sec.flags);
 627
 628                 switch (key->cipher) {
 629                 case WLAN_CIPHER_SUITE_WEP40:
 630                         wep40->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP40_KEY;
 631                         wep40->hdr.buf_size =
 632                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep40) -
 633                                             sizeof(struct iwm_umac_wifi_if));
 634
 635                         memcpy(&wep40->key_hdr, key_hdr,
 636                                sizeof(struct iwm_umac_key_hdr));
 637                         memcpy(wep40->key, key_data, key_len);
 638                         wep40->static_key =
 639                                 !!((auth_type != UMAC_AUTH_TYPE_8021X) &&
 640                                    (auth_type != UMAC_AUTH_TYPE_RSNA_PSK));
 641
 642                         cmd_size = sizeof(struct iwm_umac_key_wep40);
 643                         break;
 644
 645                 case WLAN_CIPHER_SUITE_WEP104:
 646                         wep104->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP104_KEY;
 647                         wep104->hdr.buf_size =
 648                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep104) -
 649                                             sizeof(struct iwm_umac_wifi_if));
 650
 651                         memcpy(&wep104->key_hdr, key_hdr,
 652                                sizeof(struct iwm_umac_key_hdr));
 653                         memcpy(wep104->key, key_data, key_len);
 654                         wep104->static_key =
 655                                 !!((auth_type != UMAC_AUTH_TYPE_8021X) &&
 656                                    (auth_type != UMAC_AUTH_TYPE_RSNA_PSK));
 657
 658                         cmd_size = sizeof(struct iwm_umac_key_wep104);
 659                         break;
 660
 661                 case WLAN_CIPHER_SUITE_CCMP:
 662                         key_hdr->key_idx++;
 663                         ccmp->hdr.oid = UMAC_WIFI_IF_CMD_ADD_CCMP_KEY;
 664                         ccmp->hdr.buf_size =
 665                                 cpu_to_le16(sizeof(struct iwm_umac_key_ccmp) -
 666                                             sizeof(struct iwm_umac_wifi_if));
 667
 668                         memcpy(&ccmp->key_hdr, key_hdr,
 669                                sizeof(struct iwm_umac_key_hdr));
 670
 671                         memcpy(ccmp->key, key_data, key_len);
 672
 673                         if (key->seq_len)
 674                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 675
 676                         cmd_size = sizeof(struct iwm_umac_key_ccmp);
 677                         break;
 678
 679                 case WLAN_CIPHER_SUITE_TKIP:
 680                         key_hdr->key_idx++;
 681                         tkip->hdr.oid = UMAC_WIFI_IF_CMD_ADD_TKIP_KEY;
 682                         tkip->hdr.buf_size =
 683                                 cpu_to_le16(sizeof(struct iwm_umac_key_tkip) -
 684                                             sizeof(struct iwm_umac_wifi_if));
 685
 686                         memcpy(&tkip->key_hdr, key_hdr,
 687                                sizeof(struct iwm_umac_key_hdr));
 688
 689                         memcpy(tkip->tkip_key, key_data, IWM_TKIP_KEY_SIZE);
 690                         memcpy(tkip->mic_tx_key, key_data + IWM_TKIP_KEY_SIZE,
 691                                IWM_TKIP_MIC_SIZE);
 692                         memcpy(tkip->mic_rx_key,
 693                                key_data + IWM_TKIP_KEY_SIZE + IWM_TKIP_MIC_SIZE,
 694                                IWM_TKIP_MIC_SIZE);
 695
 696                         if (key->seq_len)
 697                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 698
 699                         cmd_size = sizeof(struct iwm_umac_key_tkip);
 700                         break;
 701
 702                 default:
 703                         return -ENOTSUPP;
 704                 }
 705
 706                 if ((key->cipher == WLAN_CIPHER_SUITE_TKIP) ||
 707                     (key->cipher == WLAN_CIPHER_SUITE_CCMP))
 708                         /*
 709                          * UGLY_UGLY_UGLY
 710                          * Copied HACK from the MWG driver.
 711                          * Without it, the key is set before the second
 712                          * EAPOL frame is sent, and the latter is thus
 713                          * encrypted.
 714                          */
 715                         schedule_timeout_interruptible(usecs_to_jiffies(300));
 716
 717                 ret =  iwm_send_wifi_if_cmd(iwm, cmd, cmd_size, 1);
 718         } else {
 719                 struct iwm_umac_key_remove key_remove;
 720
 721                 IWM_DBG_WEXT(iwm, ERR, "Removing key_idx:%d\n", key_idx);
 722
 723                 key_remove.hdr.oid = UMAC_WIFI_IF_CMD_REMOVE_KEY;
 724                 key_remove.hdr.buf_size =
 725                         cpu_to_le16(sizeof(struct iwm_umac_key_remove) -
 726                                     sizeof(struct iwm_umac_wifi_if));
 727                 memcpy(&key_remove.key_hdr, key_hdr,
 728                        sizeof(struct iwm_umac_key_hdr));
 729
 730                 ret =  iwm_send_wifi_if_cmd(iwm, &key_remove,
 731                                             sizeof(struct iwm_umac_key_remove),
 732                                             1);
 733                 if (ret)
 734                         return ret;
 735
 736                 iwm->keys[key_idx].key_len = 0;
 737         }
 738
 739         return ret;
 740 }
 741
 742
 743 int iwm_send_mlme_profile(struct iwm_priv *iwm)
 744 {
 745         int ret;
 746         struct iwm_umac_profile profile;
 747
 748         memcpy(&profile, iwm->umac_profile, sizeof(profile));
 749
 750         profile.hdr.oid = UMAC_WIFI_IF_CMD_SET_PROFILE;
 751         profile.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_profile) -
 752                                            sizeof(struct iwm_umac_wifi_if));
 753
 754         ret = iwm_send_wifi_if_cmd(iwm, &profile, sizeof(profile), 1);
 755         if (ret) {
 756                 IWM_ERR(iwm, "Send profile command failed\n");
 757                 return ret;
 758         }
 759
 760         set_bit(IWM_STATUS_SME_CONNECTING, &iwm->status);
 761         return 0;
 762 }
 763
 764 int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
 765 {
 766         struct iwm_umac_invalidate_profile invalid;
 767         int ret;
 768
 769         invalid.hdr.oid = UMAC_WIFI_IF_CMD_INVALIDATE_PROFILE;
 770         invalid.hdr.buf_size =
 771                 cpu_to_le16(sizeof(struct iwm_umac_invalidate_profile) -
 772                             sizeof(struct iwm_umac_wifi_if));
 773
 774         invalid.reason = WLAN_REASON_UNSPECIFIED;
 775
 776         ret = iwm_send_wifi_if_cmd(iwm, &invalid, sizeof(invalid), 1);
 777         if (ret)
 778                 return ret;
 779
 780         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 781                                 (iwm->umac_profile_active == 0), 2 * HZ);
 782
 783         return ret ? 0 : -EBUSY;
 784 }
 785
 786 int iwm_send_umac_stats_req(struct iwm_priv *iwm, u32 flags)
 787 {
 788         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 789         struct iwm_umac_cmd umac_cmd;
 790         struct iwm_umac_cmd_stats_req stats_req;
 791
 792         stats_req.flags = cpu_to_le32(flags);
 793
 794         umac_cmd.id = UMAC_CMD_OPCODE_STATISTIC_REQUEST;
 795         umac_cmd.resp = 0;
 796
 797         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stats_req,
 798                                      sizeof(struct iwm_umac_cmd_stats_req));
 799 }
 800
 801 int iwm_send_umac_channel_list(struct iwm_priv *iwm)
 802 {
 803         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 804         struct iwm_umac_cmd umac_cmd;
 805         struct iwm_umac_cmd_get_channel_list *ch_list;
 806         int size = sizeof(struct iwm_umac_cmd_get_channel_list) +
 807                    sizeof(struct iwm_umac_channel_info) * 4;
 808         int ret;
 809
 810         ch_list = kzalloc(size, GFP_KERNEL);
 811         if (!ch_list) {
 812                 IWM_ERR(iwm, "Couldn't allocate channel list cmd\n");
 813                 return -ENOMEM;
 814         }
 815
 816         ch_list->ch[0].band = UMAC_BAND_2GHZ;
 817         ch_list->ch[0].type = UMAC_CHANNEL_WIDTH_20MHZ;
 818         ch_list->ch[0].flags = UMAC_CHANNEL_FLAG_VALID;
 819
 820         ch_list->ch[1].band = UMAC_BAND_5GHZ;
 821         ch_list->ch[1].type = UMAC_CHANNEL_WIDTH_20MHZ;
 822         ch_list->ch[1].flags = UMAC_CHANNEL_FLAG_VALID;
 823
 824         ch_list->ch[2].band = UMAC_BAND_2GHZ;
 825         ch_list->ch[2].type = UMAC_CHANNEL_WIDTH_20MHZ;
 826         ch_list->ch[2].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 827
 828         ch_list->ch[3].band = UMAC_BAND_5GHZ;
 829         ch_list->ch[3].type = UMAC_CHANNEL_WIDTH_20MHZ;
 830         ch_list->ch[3].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 831
 832         ch_list->count = cpu_to_le16(4);
 833
 834         umac_cmd.id = UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST;
 835         umac_cmd.resp = 1;
 836
 837         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, ch_list, size);
 838
 839         kfree(ch_list);
 840
 841         return ret;
 842 }
 843
 844 int iwm_scan_ssids(struct iwm_priv *iwm, struct cfg80211_ssid *ssids,
 845                    int ssid_num)
 846 {
 847         struct iwm_umac_cmd_scan_request req;
 848         int i, ret;
 849
 850         memset(&req, 0, sizeof(struct iwm_umac_cmd_scan_request));
 851
 852         req.hdr.oid = UMAC_WIFI_IF_CMD_SCAN_REQUEST;
 853         req.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_cmd_scan_request)
 854                                        - sizeof(struct iwm_umac_wifi_if));
 855         req.type = UMAC_WIFI_IF_SCAN_TYPE_USER;
 856         req.timeout = 2;
 857         req.seq_num = iwm->scan_id;
 858         req.ssid_num = min(ssid_num, UMAC_WIFI_IF_PROBE_OPTION_MAX);
 859
 860         for (i = 0; i < req.ssid_num; i++) {
 861                 memcpy(req.ssids[i].ssid, ssids[i].ssid, ssids[i].ssid_len);
 862                 req.ssids[i].ssid_len = ssids[i].ssid_len;
 863         }
 864
 865         ret = iwm_send_wifi_if_cmd(iwm, &req, sizeof(req), 0);
 866         if (ret) {
 867                 IWM_ERR(iwm, "Couldn't send scan request\n");
 868                 return ret;
 869         }
 870
 871         iwm->scan_id = iwm->scan_id++ % IWM_SCAN_ID_MAX;
 872
 873         return 0;
 874 }
 875
 876 int iwm_scan_one_ssid(struct iwm_priv *iwm, u8 *ssid, int ssid_len)
 877 {
 878         struct cfg80211_ssid one_ssid;
 879
 880         if (test_and_set_bit(IWM_STATUS_SCANNING, &iwm->status))
 881                 return 0;
 882
 883         one_ssid.ssid_len = min(ssid_len, IEEE80211_MAX_SSID_LEN);
 884         memcpy(&one_ssid.ssid, ssid, one_ssid.ssid_len);
 885
 886         return iwm_scan_ssids(iwm, &one_ssid, 1);
 887 }
 888
 889 int iwm_target_reset(struct iwm_priv *iwm)
 890 {
 891         struct iwm_udma_nonwifi_cmd target_cmd;
 892
 893         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_REBOOT;
 894         target_cmd.addr = 0;
 895         target_cmd.op1_sz = 0;
 896         target_cmd.op2 = 0;
 897         target_cmd.handle_by_hw = 0;
 898         target_cmd.resp = 0;
 899         target_cmd.eop = 1;
 900
 901         return iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 902 }