git.oblomov.eu Git - 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
  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_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
  74         struct iwm_umac_cmd umac_cmd;
  75
  76         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
  77         umac_cmd.resp = resp;
  78
  79         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
  80                                      payload, payload_size);
  81 }
  82
  83 static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
  84 {
  85         {4, 3, 0, COEX_UNASSOC_IDLE_FLAGS},
  86         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
  87         {4, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
  88         {4, 3, 0, COEX_CALIBRATION_FLAGS},
  89         {4, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
  90         {4, 3, 0, COEX_CONNECTION_ESTAB_FLAGS},
  91         {4, 3, 0, COEX_ASSOCIATED_IDLE_FLAGS},
  92         {4, 3, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
  93         {4, 3, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
  94         {4, 3, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
  95         {6, 3, 0, COEX_XOR_RF_ON_FLAGS},
  96         {4, 3, 0, COEX_RF_OFF_FLAGS},
  97         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
  98         {4, 3, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
  99         {4, 3, 0, COEX_RSRVD1_FLAGS},
 100         {4, 3, 0, COEX_RSRVD2_FLAGS}
 101 };
 102
 103 static struct coex_event iwm_sta_cm_prio_tbl[COEX_EVENTS_NUM] =
 104 {
 105         {1, 1, 0, COEX_UNASSOC_IDLE_FLAGS},
 106         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 107         {3, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 108         {5, 5, 0, COEX_CALIBRATION_FLAGS},
 109         {4, 4, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 110         {5, 4, 0, COEX_CONNECTION_ESTAB_FLAGS},
 111         {4, 4, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 112         {4, 4, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 113         {4, 4, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 114         {4, 4, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 115         {1, 1, 0, COEX_RF_ON_FLAGS},
 116         {1, 1, 0, COEX_RF_OFF_FLAGS},
 117         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 118         {5, 4, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 119         {1, 1, 0, COEX_RSRVD1_FLAGS},
 120         {1, 1, 0, COEX_RSRVD2_FLAGS}
 121 };
 122
 123 int iwm_send_prio_table(struct iwm_priv *iwm)
 124 {
 125         struct iwm_coex_prio_table_cmd coex_table_cmd;
 126         u32 coex_enabled, mode_enabled;
 127
 128         memset(&coex_table_cmd, 0, sizeof(struct iwm_coex_prio_table_cmd));
 129
 130         coex_table_cmd.flags = COEX_FLAGS_STA_TABLE_VALID_MSK;
 131
 132         switch (iwm->conf.coexist_mode) {
 133         case COEX_MODE_XOR:
 134         case COEX_MODE_CM:
 135                 coex_enabled = 1;
 136                 break;
 137         default:
 138                 coex_enabled = 0;
 139                 break;
 140         }
 141
 142         switch (iwm->conf.mode) {
 143         case UMAC_MODE_BSS:
 144         case UMAC_MODE_IBSS:
 145                 mode_enabled = 1;
 146                 break;
 147         default:
 148                 mode_enabled = 0;
 149                 break;
 150         }
 151
 152         if (coex_enabled && mode_enabled) {
 153                 coex_table_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK |
 154                                         COEX_FLAGS_ASSOC_WAKEUP_UMASK_MSK |
 155                                         COEX_FLAGS_UNASSOC_WAKEUP_UMASK_MSK;
 156
 157                 switch (iwm->conf.coexist_mode) {
 158                 case COEX_MODE_XOR:
 159                         memcpy(coex_table_cmd.sta_prio, iwm_sta_xor_prio_tbl,
 160                                sizeof(iwm_sta_xor_prio_tbl));
 161                         break;
 162                 case COEX_MODE_CM:
 163                         memcpy(coex_table_cmd.sta_prio, iwm_sta_cm_prio_tbl,
 164                                sizeof(iwm_sta_cm_prio_tbl));
 165                         break;
 166                 default:
 167                         IWM_ERR(iwm, "Invalid coex_mode 0x%x\n",
 168                                 iwm->conf.coexist_mode);
 169                         break;
 170                 }
 171         } else
 172                 IWM_WARN(iwm, "coexistense disabled\n");
 173
 174         return iwm_send_lmac_ptrough_cmd(iwm, COEX_PRIORITY_TABLE_CMD,
 175                                 &coex_table_cmd,
 176                                 sizeof(struct iwm_coex_prio_table_cmd), 1);
 177 }
 178
 179 int iwm_send_init_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 180 {
 181         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 182
 183         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 184
 185         cal_cfg_cmd.ucode_cfg.init.enable = cpu_to_le32(calib_requested);
 186         cal_cfg_cmd.ucode_cfg.init.start = cpu_to_le32(calib_requested);
 187         cal_cfg_cmd.ucode_cfg.init.send_res = cpu_to_le32(calib_requested);
 188         cal_cfg_cmd.ucode_cfg.flags =
 189                 cpu_to_le32(CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_AFTER_MSK);
 190
 191         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 192                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 1);
 193 }
 194
 195 int iwm_send_periodic_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 196 {
 197         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 198
 199         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 200
 201         cal_cfg_cmd.ucode_cfg.periodic.enable = cpu_to_le32(calib_requested);
 202         cal_cfg_cmd.ucode_cfg.periodic.start = cpu_to_le32(calib_requested);
 203
 204         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 205                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 0);
 206 }
 207
 208 int iwm_store_rxiq_calib_result(struct iwm_priv *iwm)
 209 {
 210         struct iwm_calib_rxiq *rxiq;
 211         u8 *eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 212         int grplen = sizeof(struct iwm_calib_rxiq_group);
 213
 214         rxiq = kzalloc(sizeof(struct iwm_calib_rxiq), GFP_KERNEL);
 215         if (!rxiq) {
 216                 IWM_ERR(iwm, "Couldn't alloc memory for RX IQ\n");
 217                 return -ENOMEM;
 218         }
 219
 220         eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 221         if (IS_ERR(eeprom_rxiq)) {
 222                 IWM_ERR(iwm, "Couldn't access EEPROM RX IQ entry\n");
 223                 return PTR_ERR(eeprom_rxiq);
 224         }
 225
 226         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].buf = (u8 *)rxiq;
 227         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].size = sizeof(*rxiq);
 228
 229         rxiq->hdr.opcode = SHILOH_PHY_CALIBRATE_RX_IQ_CMD;
 230         rxiq->hdr.first_grp = 0;
 231         rxiq->hdr.grp_num = 1;
 232         rxiq->hdr.all_data_valid = 1;
 233
 234         memcpy(&rxiq->group[0], eeprom_rxiq, 4 * grplen);
 235         memcpy(&rxiq->group[4], eeprom_rxiq + 6 * grplen, grplen);
 236
 237         return 0;
 238 }
 239
 240 int iwm_send_calib_results(struct iwm_priv *iwm)
 241 {
 242         int i, ret = 0;
 243
 244         for (i = PHY_CALIBRATE_OPCODES_NUM; i < CALIBRATION_CMD_NUM; i++) {
 245                 if (test_bit(i - PHY_CALIBRATE_OPCODES_NUM,
 246                              &iwm->calib_done_map)) {
 247                         IWM_DBG_CMD(iwm, DBG,
 248                                     "Send calibration %d result\n", i);
 249                         ret |= iwm_send_lmac_ptrough_cmd(iwm,
 250                                         REPLY_PHY_CALIBRATION_CMD,
 251                                         iwm->calib_res[i].buf,
 252                                         iwm->calib_res[i].size, 0);
 253
 254                         kfree(iwm->calib_res[i].buf);
 255                         iwm->calib_res[i].buf = NULL;
 256                         iwm->calib_res[i].size = 0;
 257                 }
 258         }
 259
 260         return ret;
 261 }
 262
 263 int iwm_send_umac_reset(struct iwm_priv *iwm, __le32 reset_flags, bool resp)
 264 {
 265         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 266         struct iwm_umac_cmd umac_cmd;
 267         struct iwm_umac_cmd_reset reset;
 268
 269         reset.flags = reset_flags;
 270
 271         umac_cmd.id = UMAC_CMD_OPCODE_RESET;
 272         umac_cmd.resp = resp;
 273
 274         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &reset,
 275                                      sizeof(struct iwm_umac_cmd_reset));
 276 }
 277
 278 int iwm_umac_set_config_fix(struct iwm_priv *iwm, u16 tbl, u16 key, u32 value)
 279 {
 280         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 281         struct iwm_umac_cmd umac_cmd;
 282         struct iwm_umac_cmd_set_param_fix param;
 283
 284         if ((tbl != UMAC_PARAM_TBL_CFG_FIX) &&
 285             (tbl != UMAC_PARAM_TBL_FA_CFG_FIX))
 286                 return -EINVAL;
 287
 288         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_FIX;
 289         umac_cmd.resp = 0;
 290
 291         param.tbl = cpu_to_le16(tbl);
 292         param.key = cpu_to_le16(key);
 293         param.value = cpu_to_le32(value);
 294
 295         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &param,
 296                                      sizeof(struct iwm_umac_cmd_set_param_fix));
 297 }
 298
 299 int iwm_umac_set_config_var(struct iwm_priv *iwm, u16 key,
 300                             void *payload, u16 payload_size)
 301 {
 302         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 303         struct iwm_umac_cmd umac_cmd;
 304         struct iwm_umac_cmd_set_param_var *param_hdr;
 305         u8 *param;
 306         int ret;
 307
 308         param = kzalloc(payload_size +
 309                         sizeof(struct iwm_umac_cmd_set_param_var), GFP_KERNEL);
 310         if (!param) {
 311                 IWM_ERR(iwm, "Couldn't allocate param\n");
 312                 return -ENOMEM;
 313         }
 314
 315         param_hdr = (struct iwm_umac_cmd_set_param_var *)param;
 316
 317         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_VAR;
 318         umac_cmd.resp = 0;
 319
 320         param_hdr->tbl = cpu_to_le16(UMAC_PARAM_TBL_CFG_VAR);
 321         param_hdr->key = cpu_to_le16(key);
 322         param_hdr->len = cpu_to_le16(payload_size);
 323         memcpy(param + sizeof(struct iwm_umac_cmd_set_param_var),
 324                payload, payload_size);
 325
 326         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, param,
 327                                     sizeof(struct iwm_umac_cmd_set_param_var) +
 328                                     payload_size);
 329         kfree(param);
 330
 331         return ret;
 332 }
 333
 334 int iwm_send_umac_config(struct iwm_priv *iwm,
 335                          __le32 reset_flags)
 336 {
 337         int ret;
 338
 339         /* Use UMAC default values */
 340         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 341                                       CFG_POWER_INDEX, iwm->conf.power_index);
 342         if (ret < 0)
 343                 return ret;
 344
 345         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX,
 346                                       CFG_FRAG_THRESHOLD,
 347                                       iwm->conf.frag_threshold);
 348         if (ret < 0)
 349                 return ret;
 350
 351         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 352                                       CFG_RTS_THRESHOLD,
 353                                       iwm->conf.rts_threshold);
 354         if (ret < 0)
 355                 return ret;
 356
 357         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 358                                       CFG_CTS_TO_SELF, iwm->conf.cts_to_self);
 359         if (ret < 0)
 360                 return ret;
 361
 362         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 363                                       CFG_COEX_MODE, iwm->conf.coexist_mode);
 364         if (ret < 0)
 365                 return ret;
 366
 367         /*
 368         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 369                                       CFG_ASSOCIATION_TIMEOUT,
 370                                       iwm->conf.assoc_timeout);
 371         if (ret < 0)
 372                 return ret;
 373
 374         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 375                                       CFG_ROAM_TIMEOUT,
 376                                       iwm->conf.roam_timeout);
 377         if (ret < 0)
 378                 return ret;
 379
 380         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 381                                       CFG_WIRELESS_MODE,
 382                                       WIRELESS_MODE_11A | WIRELESS_MODE_11G);
 383         if (ret < 0)
 384                 return ret;
 385         */
 386
 387         ret = iwm_umac_set_config_var(iwm, CFG_NET_ADDR,
 388                                       iwm_to_ndev(iwm)->dev_addr, ETH_ALEN);
 389         if (ret < 0)
 390                 return ret;
 391
 392         /* UMAC PM static configurations */
 393         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 394                                       CFG_PM_LEGACY_RX_TIMEOUT, 0x12C);
 395         if (ret < 0)
 396                 return ret;
 397
 398         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 399                                       CFG_PM_LEGACY_TX_TIMEOUT, 0x15E);
 400         if (ret < 0)
 401                 return ret;
 402
 403         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 404                                       CFG_PM_CTRL_FLAGS, 0x30001);
 405         if (ret < 0)
 406                 return ret;
 407
 408         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 409                                       CFG_PM_KEEP_ALIVE_IN_BEACONS, 0x80);
 410         if (ret < 0)
 411                 return ret;
 412
 413         /* reset UMAC */
 414         ret = iwm_send_umac_reset(iwm, reset_flags, 1);
 415         if (ret < 0)
 416                 return ret;
 417
 418         ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_RESET, IWM_SRC_UMAC,
 419                                WAIT_NOTIF_TIMEOUT);
 420         if (ret) {
 421                 IWM_ERR(iwm, "Wait for UMAC RESET timeout\n");
 422                 return ret;
 423         }
 424
 425         return ret;
 426 }
 427
 428 int iwm_send_packet(struct iwm_priv *iwm, struct sk_buff *skb, int pool_id)
 429 {
 430         struct iwm_udma_wifi_cmd udma_cmd;
 431         struct iwm_umac_cmd umac_cmd;
 432         struct iwm_tx_info *tx_info = skb_to_tx_info(skb);
 433
 434         udma_cmd.eop = 1; /* always set eop for non-concatenated Tx */
 435         udma_cmd.credit_group = pool_id;
 436         udma_cmd.ra_tid = tx_info->sta << 4 | tx_info->tid;
 437         udma_cmd.lmac_offset = 0;
 438
 439         umac_cmd.id = REPLY_TX;
 440         umac_cmd.color = tx_info->color;
 441         umac_cmd.resp = 0;
 442
 443         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
 444                                      skb->data, skb->len);
 445 }
 446
 447 static int iwm_target_read(struct iwm_priv *iwm, __le32 address,
 448                            u8 *response, u32 resp_size)
 449 {
 450         struct iwm_udma_nonwifi_cmd target_cmd;
 451         struct iwm_nonwifi_cmd *cmd;
 452         u16 seq_num;
 453         int ret = 0;
 454
 455         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ;
 456         target_cmd.addr = address;
 457         target_cmd.op1_sz = cpu_to_le32(resp_size);
 458         target_cmd.op2 = 0;
 459         target_cmd.handle_by_hw = 0;
 460         target_cmd.resp = 1;
 461         target_cmd.eop = 1;
 462
 463         ret = iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 464         if (ret < 0)
 465                 IWM_ERR(iwm, "Couldn't send READ command\n");
 466
 467         /* When succeding, the send_target routine returns the seq number */
 468         seq_num = ret;
 469
 470         ret = wait_event_interruptible_timeout(iwm->nonwifi_queue,
 471                 (cmd = iwm_get_pending_nonwifi_cmd(iwm, seq_num,
 472                                           UMAC_HDI_OUT_OPCODE_READ)) != NULL,
 473                                                2 * HZ);
 474
 475         if (!ret) {
 476                 IWM_ERR(iwm, "Didn't receive a target READ answer\n");
 477                 return ret;
 478         }
 479
 480         memcpy(response, cmd->buf.hdr + sizeof(struct iwm_udma_in_hdr),
 481                resp_size);
 482
 483         kfree(cmd);
 484
 485         return ret;
 486 }
 487
 488 int iwm_read_mac(struct iwm_priv *iwm, u8 *mac)
 489 {
 490         int ret;
 491         u8 mac_align[ALIGN(ETH_ALEN, 8)];
 492
 493         ret = iwm_target_read(iwm, cpu_to_le32(WICO_MAC_ADDRESS_ADDR),
 494                               mac_align, sizeof(mac_align));
 495         if (ret < 0)
 496                 return ret;
 497
 498         if (is_valid_ether_addr(mac_align))
 499                 memcpy(mac, mac_align, ETH_ALEN);
 500         else {
 501                 IWM_ERR(iwm, "Invalid EEPROM MAC\n");
 502                 memcpy(mac, iwm->conf.mac_addr, ETH_ALEN);
 503                 get_random_bytes(&mac[3], 3);
 504         }
 505
 506         return 0;
 507 }
 508
 509 int iwm_set_tx_key(struct iwm_priv *iwm, u8 key_idx)
 510 {
 511         struct iwm_umac_tx_key_id tx_key_id;
 512
 513         if (!iwm->default_key || !iwm->default_key->in_use)
 514                 return -EINVAL;
 515
 516         tx_key_id.hdr.oid = UMAC_WIFI_IF_CMD_GLOBAL_TX_KEY_ID;
 517         tx_key_id.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_tx_key_id) -
 518                                              sizeof(struct iwm_umac_wifi_if));
 519
 520         tx_key_id.key_idx = key_idx;
 521
 522         return iwm_send_wifi_if_cmd(iwm, &tx_key_id, sizeof(tx_key_id), 1);
 523 }
 524
 525 static int iwm_check_profile(struct iwm_priv *iwm)
 526 {
 527         if (!iwm->umac_profile_active)
 528                 return -EAGAIN;
 529
 530         if (iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 531             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 532             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 533             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 534                 IWM_ERR(iwm, "Wrong unicast cipher: 0x%x\n",
 535                         iwm->umac_profile->sec.ucast_cipher);
 536                 return -EAGAIN;
 537         }
 538
 539         if (iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 540             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 541             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 542             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 543                 IWM_ERR(iwm, "Wrong multicast cipher: 0x%x\n",
 544                         iwm->umac_profile->sec.mcast_cipher);
 545                 return -EAGAIN;
 546         }
 547
 548         if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 ||
 549              iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) &&
 550             (iwm->umac_profile->sec.ucast_cipher !=
 551              iwm->umac_profile->sec.mcast_cipher)) {
 552                 IWM_ERR(iwm, "Unicast and multicast ciphers differ for WEP\n");
 553         }
 554
 555         return 0;
 556 }
 557
 558 int iwm_set_key(struct iwm_priv *iwm, bool remove, bool set_tx_key,
 559                 struct iwm_key *key)
 560 {
 561         int ret;
 562         u8 cmd[64], *sta_addr, *key_data, key_len;
 563         s8 key_idx;
 564         u16 cmd_size = 0;
 565         struct iwm_umac_key_hdr *key_hdr = &key->hdr;
 566         struct iwm_umac_key_wep40 *wep40 = (struct iwm_umac_key_wep40 *)cmd;
 567         struct iwm_umac_key_wep104 *wep104 = (struct iwm_umac_key_wep104 *)cmd;
 568         struct iwm_umac_key_tkip *tkip = (struct iwm_umac_key_tkip *)cmd;
 569         struct iwm_umac_key_ccmp *ccmp = (struct iwm_umac_key_ccmp *)cmd;
 570
 571         if (set_tx_key)
 572                 iwm->default_key = key;
 573
 574         /*
 575          * We check if our current profile is valid.
 576          * If not, we dont push the key, we just cache them,
 577          * so that with the next siwsessid call, the keys
 578          * will be actually pushed.
 579          */
 580         if (!remove) {
 581                 ret = iwm_check_profile(iwm);
 582                 if (ret < 0)
 583                         return ret;
 584         }
 585
 586         sta_addr = key->hdr.mac;
 587         key_data = key->key;
 588         key_len = key->key_len;
 589         key_idx = key->hdr.key_idx;
 590
 591         if (!remove) {
 592                 IWM_DBG_WEXT(iwm, DBG, "key_idx:%d set tx key:%d\n",
 593                              key_idx, set_tx_key);
 594                 IWM_DBG_WEXT(iwm, DBG, "key_len:%d\n", key_len);
 595                 IWM_DBG_WEXT(iwm, DBG, "MAC:%pM, idx:%d, multicast:%d\n",
 596                        key_hdr->mac, key_hdr->key_idx, key_hdr->multicast);
 597
 598                 IWM_DBG_WEXT(iwm, DBG, "profile: mcast:0x%x, ucast:0x%x\n",
 599                              iwm->umac_profile->sec.mcast_cipher,
 600                              iwm->umac_profile->sec.ucast_cipher);
 601                 IWM_DBG_WEXT(iwm, DBG, "profile: auth_type:0x%x, flags:0x%x\n",
 602                              iwm->umac_profile->sec.auth_type,
 603                              iwm->umac_profile->sec.flags);
 604
 605                 switch (key->alg) {
 606                 case UMAC_CIPHER_TYPE_WEP_40:
 607                         wep40->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP40_KEY;
 608                         wep40->hdr.buf_size =
 609                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep40) -
 610                                             sizeof(struct iwm_umac_wifi_if));
 611
 612                         memcpy(&wep40->key_hdr, key_hdr,
 613                                sizeof(struct iwm_umac_key_hdr));
 614                         memcpy(wep40->key, key_data, key_len);
 615                         wep40->static_key = 1;
 616
 617                         cmd_size = sizeof(struct iwm_umac_key_wep40);
 618                         break;
 619
 620                 case UMAC_CIPHER_TYPE_WEP_104:
 621                         wep104->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP104_KEY;
 622                         wep104->hdr.buf_size =
 623                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep104) -
 624                                             sizeof(struct iwm_umac_wifi_if));
 625
 626                         memcpy(&wep104->key_hdr, key_hdr,
 627                                sizeof(struct iwm_umac_key_hdr));
 628                         memcpy(wep104->key, key_data, key_len);
 629                         wep104->static_key = 1;
 630
 631                         cmd_size = sizeof(struct iwm_umac_key_wep104);
 632                         break;
 633
 634                 case UMAC_CIPHER_TYPE_CCMP:
 635                         key_hdr->key_idx++;
 636                         ccmp->hdr.oid = UMAC_WIFI_IF_CMD_ADD_CCMP_KEY;
 637                         ccmp->hdr.buf_size =
 638                                 cpu_to_le16(sizeof(struct iwm_umac_key_ccmp) -
 639                                             sizeof(struct iwm_umac_wifi_if));
 640
 641                         memcpy(&ccmp->key_hdr, key_hdr,
 642                                sizeof(struct iwm_umac_key_hdr));
 643
 644                         memcpy(ccmp->key, key_data, key_len);
 645
 646                         if (key->flags & IW_ENCODE_EXT_RX_SEQ_VALID)
 647                                 memcpy(ccmp->iv_count, key->rx_seq, 6);
 648
 649                         cmd_size = sizeof(struct iwm_umac_key_ccmp);
 650                         break;
 651
 652                 case UMAC_CIPHER_TYPE_TKIP:
 653                         key_hdr->key_idx++;
 654                         tkip->hdr.oid = UMAC_WIFI_IF_CMD_ADD_TKIP_KEY;
 655                         tkip->hdr.buf_size =
 656                                 cpu_to_le16(sizeof(struct iwm_umac_key_tkip) -
 657                                             sizeof(struct iwm_umac_wifi_if));
 658
 659                         memcpy(&tkip->key_hdr, key_hdr,
 660                                sizeof(struct iwm_umac_key_hdr));
 661
 662                         memcpy(tkip->tkip_key, key_data, IWM_TKIP_KEY_SIZE);
 663                         memcpy(tkip->mic_tx_key, key_data + IWM_TKIP_KEY_SIZE,
 664                                IWM_TKIP_MIC_SIZE);
 665                         memcpy(tkip->mic_rx_key,
 666                                key_data + IWM_TKIP_KEY_SIZE + IWM_TKIP_MIC_SIZE,
 667                                IWM_TKIP_MIC_SIZE);
 668
 669                         if (key->flags & IW_ENCODE_EXT_RX_SEQ_VALID)
 670                                 memcpy(ccmp->iv_count, key->rx_seq, 6);
 671
 672                         cmd_size = sizeof(struct iwm_umac_key_tkip);
 673                         break;
 674
 675                 default:
 676                         return -ENOTSUPP;
 677                 }
 678
 679                 if ((key->alg == UMAC_CIPHER_TYPE_CCMP) ||
 680                     (key->alg == UMAC_CIPHER_TYPE_TKIP))
 681                         /*
 682                          * UGLY_UGLY_UGLY
 683                          * Copied HACK from the MWG driver.
 684                          * Without it, the key is set before the second
 685                          * EAPOL frame is sent, and the latter is thus
 686                          * encrypted.
 687                          */
 688                         schedule_timeout_interruptible(usecs_to_jiffies(300));
 689
 690                 ret =  iwm_send_wifi_if_cmd(iwm, cmd, cmd_size, 1);
 691                 if (ret < 0)
 692                         goto err;
 693
 694                 /*
 695                  * We need a default key only if it is set and
 696                  * if we're doing WEP.
 697                  */
 698                 if (iwm->default_key == key &&
 699                         ((key->alg == UMAC_CIPHER_TYPE_WEP_40) ||
 700                          (key->alg == UMAC_CIPHER_TYPE_WEP_104))) {
 701                         ret = iwm_set_tx_key(iwm, key_idx);
 702                         if (ret < 0)
 703                                 goto err;
 704                 }
 705         } else {
 706                 struct iwm_umac_key_remove key_remove;
 707
 708                 key_remove.hdr.oid = UMAC_WIFI_IF_CMD_REMOVE_KEY;
 709                 key_remove.hdr.buf_size =
 710                         cpu_to_le16(sizeof(struct iwm_umac_key_remove) -
 711                                     sizeof(struct iwm_umac_wifi_if));
 712                 memcpy(&key_remove.key_hdr, key_hdr,
 713                        sizeof(struct iwm_umac_key_hdr));
 714
 715                 ret =  iwm_send_wifi_if_cmd(iwm, &key_remove,
 716                                             sizeof(struct iwm_umac_key_remove),
 717                                             1);
 718                 if (ret < 0)
 719                         return ret;
 720
 721                 iwm->keys[key_idx].in_use = 0;
 722         }
 723
 724         return 0;
 725
 726  err:
 727         kfree(key);
 728         return ret;
 729 }
 730
 731
 732 int iwm_send_mlme_profile(struct iwm_priv *iwm)
 733 {
 734         int ret, i;
 735         struct iwm_umac_profile profile;
 736
 737         memcpy(&profile, iwm->umac_profile, sizeof(profile));
 738
 739         profile.hdr.oid = UMAC_WIFI_IF_CMD_SET_PROFILE;
 740         profile.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_profile) -
 741                                            sizeof(struct iwm_umac_wifi_if));
 742
 743         ret = iwm_send_wifi_if_cmd(iwm, &profile, sizeof(profile), 1);
 744         if (ret < 0) {
 745                 IWM_ERR(iwm, "Send profile command failed\n");
 746                 return ret;
 747         }
 748
 749         /* Wait for the profile to be active */
 750         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 751                                                iwm->umac_profile_active == 1,
 752                                                3 * HZ);
 753         if (!ret)
 754                 return -EBUSY;
 755
 756
 757         for (i = 0; i < IWM_NUM_KEYS; i++)
 758                 if (iwm->keys[i].in_use) {
 759                         int default_key = 0;
 760                         struct iwm_key *key = &iwm->keys[i];
 761
 762                         if (key == iwm->default_key)
 763                                 default_key = 1;
 764
 765                         /* Wait for the profile before sending the keys */
 766                         wait_event_interruptible_timeout(iwm->mlme_queue,
 767                              (test_bit(IWM_STATUS_ASSOCIATING, &iwm->status) ||
 768                               test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)),
 769                                                          3 * HZ);
 770
 771                         ret = iwm_set_key(iwm, 0, default_key, key);
 772                         if (ret < 0)
 773                                 return ret;
 774                 }
 775
 776         return 0;
 777 }
 778
 779 int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
 780 {
 781         int ret;
 782         struct iwm_umac_invalidate_profile invalid;
 783
 784         invalid.hdr.oid = UMAC_WIFI_IF_CMD_INVALIDATE_PROFILE;
 785         invalid.hdr.buf_size =
 786                 cpu_to_le16(sizeof(struct iwm_umac_invalidate_profile) -
 787                             sizeof(struct iwm_umac_wifi_if));
 788
 789         invalid.reason = WLAN_REASON_UNSPECIFIED;
 790
 791         ret = iwm_send_wifi_if_cmd(iwm, &invalid, sizeof(invalid), 1);
 792         if (ret < 0)
 793                 return ret;
 794
 795         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 796                                  (iwm->umac_profile_active == 0),
 797                                                2 * HZ);
 798         if (!ret)
 799                 return -EBUSY;
 800
 801         return 0;
 802 }
 803
 804 int iwm_send_umac_stats_req(struct iwm_priv *iwm, u32 flags)
 805 {
 806         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 807         struct iwm_umac_cmd umac_cmd;
 808         struct iwm_umac_cmd_stats_req stats_req;
 809
 810         stats_req.flags = cpu_to_le32(flags);
 811
 812         umac_cmd.id = UMAC_CMD_OPCODE_STATISTIC_REQUEST;
 813         umac_cmd.resp = 0;
 814
 815         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stats_req,
 816                                      sizeof(struct iwm_umac_cmd_stats_req));
 817 }
 818
 819 int iwm_send_umac_channel_list(struct iwm_priv *iwm)
 820 {
 821         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 822         struct iwm_umac_cmd umac_cmd;
 823         struct iwm_umac_cmd_get_channel_list *ch_list;
 824         int size = sizeof(struct iwm_umac_cmd_get_channel_list) +
 825                    sizeof(struct iwm_umac_channel_info) * 4;
 826         int ret;
 827
 828         ch_list = kzalloc(size, GFP_KERNEL);
 829         if (!ch_list) {
 830                 IWM_ERR(iwm, "Couldn't allocate channel list cmd\n");
 831                 return -ENOMEM;
 832         }
 833
 834         ch_list->ch[0].band = UMAC_BAND_2GHZ;
 835         ch_list->ch[0].type = UMAC_CHANNEL_WIDTH_20MHZ;
 836         ch_list->ch[0].flags = UMAC_CHANNEL_FLAG_VALID;
 837
 838         ch_list->ch[1].band = UMAC_BAND_5GHZ;
 839         ch_list->ch[1].type = UMAC_CHANNEL_WIDTH_20MHZ;
 840         ch_list->ch[1].flags = UMAC_CHANNEL_FLAG_VALID;
 841
 842         ch_list->ch[2].band = UMAC_BAND_2GHZ;
 843         ch_list->ch[2].type = UMAC_CHANNEL_WIDTH_20MHZ;
 844         ch_list->ch[2].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 845
 846         ch_list->ch[3].band = UMAC_BAND_5GHZ;
 847         ch_list->ch[3].type = UMAC_CHANNEL_WIDTH_20MHZ;
 848         ch_list->ch[3].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 849
 850         ch_list->count = cpu_to_le16(4);
 851
 852         umac_cmd.id = UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST;
 853         umac_cmd.resp = 1;
 854
 855         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, ch_list, size);
 856
 857         kfree(ch_list);
 858
 859         return ret;
 860 }
 861
 862 int iwm_scan_ssids(struct iwm_priv *iwm, struct cfg80211_ssid *ssids,
 863                    int ssid_num)
 864 {
 865         struct iwm_umac_cmd_scan_request req;
 866         int i, ret;
 867
 868         memset(&req, 0, sizeof(struct iwm_umac_cmd_scan_request));
 869
 870         req.hdr.oid = UMAC_WIFI_IF_CMD_SCAN_REQUEST;
 871         req.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_cmd_scan_request)
 872                                        - sizeof(struct iwm_umac_wifi_if));
 873         req.type = UMAC_WIFI_IF_SCAN_TYPE_USER;
 874         req.timeout = 2;
 875         req.seq_num = iwm->scan_id;
 876         req.ssid_num = min(ssid_num, UMAC_WIFI_IF_PROBE_OPTION_MAX);
 877
 878         for (i = 0; i < req.ssid_num; i++) {
 879                 memcpy(req.ssids[i].ssid, ssids[i].ssid, ssids[i].ssid_len);
 880                 req.ssids[i].ssid_len = ssids[i].ssid_len;
 881         }
 882
 883         ret = iwm_send_wifi_if_cmd(iwm, &req, sizeof(req), 0);
 884         if (ret < 0) {
 885                 IWM_ERR(iwm, "Couldn't send scan request\n");
 886                 return ret;
 887         }
 888
 889         iwm->scan_id = iwm->scan_id++ % IWM_SCAN_ID_MAX;
 890
 891         return 0;
 892 }
 893
 894 int iwm_scan_one_ssid(struct iwm_priv *iwm, u8 *ssid, int ssid_len)
 895 {
 896         struct cfg80211_ssid one_ssid;
 897
 898         if (test_and_set_bit(IWM_STATUS_SCANNING, &iwm->status))
 899                 return 0;
 900
 901         one_ssid.ssid_len = min(ssid_len, IEEE80211_MAX_SSID_LEN);
 902         memcpy(&one_ssid.ssid, ssid, one_ssid.ssid_len);
 903
 904         return iwm_scan_ssids(iwm, &one_ssid, 1);
 905 }
 906
 907 int iwm_target_reset(struct iwm_priv *iwm)
 908 {
 909         struct iwm_udma_nonwifi_cmd target_cmd;
 910
 911         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_REBOOT;
 912         target_cmd.addr = 0;
 913         target_cmd.op1_sz = 0;
 914         target_cmd.op2 = 0;
 915         target_cmd.handle_by_hw = 0;
 916         target_cmd.resp = 0;
 917         target_cmd.eop = 1;
 918
 919         return iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 920 }