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                 kfree(rxiq);
 224                 return PTR_ERR(eeprom_rxiq);
 225         }
 226
 227         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].buf = (u8 *)rxiq;
 228         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].size = sizeof(*rxiq);
 229
 230         rxiq->hdr.opcode = SHILOH_PHY_CALIBRATE_RX_IQ_CMD;
 231         rxiq->hdr.first_grp = 0;
 232         rxiq->hdr.grp_num = 1;
 233         rxiq->hdr.all_data_valid = 1;
 234
 235         memcpy(&rxiq->group[0], eeprom_rxiq, 4 * grplen);
 236         memcpy(&rxiq->group[4], eeprom_rxiq + 6 * grplen, grplen);
 237
 238         return 0;
 239 }
 240
 241 int iwm_send_calib_results(struct iwm_priv *iwm)
 242 {
 243         int i, ret = 0;
 244
 245         for (i = PHY_CALIBRATE_OPCODES_NUM; i < CALIBRATION_CMD_NUM; i++) {
 246                 if (test_bit(i - PHY_CALIBRATE_OPCODES_NUM,
 247                              &iwm->calib_done_map)) {
 248                         IWM_DBG_CMD(iwm, DBG,
 249                                     "Send calibration %d result\n", i);
 250                         ret |= iwm_send_lmac_ptrough_cmd(iwm,
 251                                         REPLY_PHY_CALIBRATION_CMD,
 252                                         iwm->calib_res[i].buf,
 253                                         iwm->calib_res[i].size, 0);
 254
 255                         kfree(iwm->calib_res[i].buf);
 256                         iwm->calib_res[i].buf = NULL;
 257                         iwm->calib_res[i].size = 0;
 258                 }
 259         }
 260
 261         return ret;
 262 }
 263
 264 int iwm_send_umac_reset(struct iwm_priv *iwm, __le32 reset_flags, bool resp)
 265 {
 266         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 267         struct iwm_umac_cmd umac_cmd;
 268         struct iwm_umac_cmd_reset reset;
 269
 270         reset.flags = reset_flags;
 271
 272         umac_cmd.id = UMAC_CMD_OPCODE_RESET;
 273         umac_cmd.resp = resp;
 274
 275         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &reset,
 276                                      sizeof(struct iwm_umac_cmd_reset));
 277 }
 278
 279 int iwm_umac_set_config_fix(struct iwm_priv *iwm, u16 tbl, u16 key, u32 value)
 280 {
 281         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 282         struct iwm_umac_cmd umac_cmd;
 283         struct iwm_umac_cmd_set_param_fix param;
 284
 285         if ((tbl != UMAC_PARAM_TBL_CFG_FIX) &&
 286             (tbl != UMAC_PARAM_TBL_FA_CFG_FIX))
 287                 return -EINVAL;
 288
 289         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_FIX;
 290         umac_cmd.resp = 0;
 291
 292         param.tbl = cpu_to_le16(tbl);
 293         param.key = cpu_to_le16(key);
 294         param.value = cpu_to_le32(value);
 295
 296         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &param,
 297                                      sizeof(struct iwm_umac_cmd_set_param_fix));
 298 }
 299
 300 int iwm_umac_set_config_var(struct iwm_priv *iwm, u16 key,
 301                             void *payload, u16 payload_size)
 302 {
 303         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 304         struct iwm_umac_cmd umac_cmd;
 305         struct iwm_umac_cmd_set_param_var *param_hdr;
 306         u8 *param;
 307         int ret;
 308
 309         param = kzalloc(payload_size +
 310                         sizeof(struct iwm_umac_cmd_set_param_var), GFP_KERNEL);
 311         if (!param) {
 312                 IWM_ERR(iwm, "Couldn't allocate param\n");
 313                 return -ENOMEM;
 314         }
 315
 316         param_hdr = (struct iwm_umac_cmd_set_param_var *)param;
 317
 318         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_VAR;
 319         umac_cmd.resp = 0;
 320
 321         param_hdr->tbl = cpu_to_le16(UMAC_PARAM_TBL_CFG_VAR);
 322         param_hdr->key = cpu_to_le16(key);
 323         param_hdr->len = cpu_to_le16(payload_size);
 324         memcpy(param + sizeof(struct iwm_umac_cmd_set_param_var),
 325                payload, payload_size);
 326
 327         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, param,
 328                                     sizeof(struct iwm_umac_cmd_set_param_var) +
 329                                     payload_size);
 330         kfree(param);
 331
 332         return ret;
 333 }
 334
 335 int iwm_send_umac_config(struct iwm_priv *iwm,
 336                          __le32 reset_flags)
 337 {
 338         int ret;
 339
 340         /* Use UMAC default values */
 341         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 342                                       CFG_POWER_INDEX, iwm->conf.power_index);
 343         if (ret < 0)
 344                 return ret;
 345
 346         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX,
 347                                       CFG_FRAG_THRESHOLD,
 348                                       iwm->conf.frag_threshold);
 349         if (ret < 0)
 350                 return ret;
 351
 352         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 353                                       CFG_RTS_THRESHOLD,
 354                                       iwm->conf.rts_threshold);
 355         if (ret < 0)
 356                 return ret;
 357
 358         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 359                                       CFG_CTS_TO_SELF, iwm->conf.cts_to_self);
 360         if (ret < 0)
 361                 return ret;
 362
 363         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 364                                       CFG_COEX_MODE, iwm->conf.coexist_mode);
 365         if (ret < 0)
 366                 return ret;
 367
 368         /*
 369         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 370                                       CFG_ASSOCIATION_TIMEOUT,
 371                                       iwm->conf.assoc_timeout);
 372         if (ret < 0)
 373                 return ret;
 374
 375         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 376                                       CFG_ROAM_TIMEOUT,
 377                                       iwm->conf.roam_timeout);
 378         if (ret < 0)
 379                 return ret;
 380
 381         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 382                                       CFG_WIRELESS_MODE,
 383                                       WIRELESS_MODE_11A | WIRELESS_MODE_11G);
 384         if (ret < 0)
 385                 return ret;
 386         */
 387
 388         ret = iwm_umac_set_config_var(iwm, CFG_NET_ADDR,
 389                                       iwm_to_ndev(iwm)->dev_addr, ETH_ALEN);
 390         if (ret < 0)
 391                 return ret;
 392
 393         /* UMAC PM static configurations */
 394         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 395                                       CFG_PM_LEGACY_RX_TIMEOUT, 0x12C);
 396         if (ret < 0)
 397                 return ret;
 398
 399         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 400                                       CFG_PM_LEGACY_TX_TIMEOUT, 0x15E);
 401         if (ret < 0)
 402                 return ret;
 403
 404         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 405                                       CFG_PM_CTRL_FLAGS, 0x30001);
 406         if (ret < 0)
 407                 return ret;
 408
 409         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 410                                       CFG_PM_KEEP_ALIVE_IN_BEACONS, 0x80);
 411         if (ret < 0)
 412                 return ret;
 413
 414         /* reset UMAC */
 415         ret = iwm_send_umac_reset(iwm, reset_flags, 1);
 416         if (ret < 0)
 417                 return ret;
 418
 419         ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_RESET, IWM_SRC_UMAC,
 420                                WAIT_NOTIF_TIMEOUT);
 421         if (ret) {
 422                 IWM_ERR(iwm, "Wait for UMAC RESET timeout\n");
 423                 return ret;
 424         }
 425
 426         return ret;
 427 }
 428
 429 int iwm_send_packet(struct iwm_priv *iwm, struct sk_buff *skb, int pool_id)
 430 {
 431         struct iwm_udma_wifi_cmd udma_cmd;
 432         struct iwm_umac_cmd umac_cmd;
 433         struct iwm_tx_info *tx_info = skb_to_tx_info(skb);
 434
 435         udma_cmd.eop = 1; /* always set eop for non-concatenated Tx */
 436         udma_cmd.credit_group = pool_id;
 437         udma_cmd.ra_tid = tx_info->sta << 4 | tx_info->tid;
 438         udma_cmd.lmac_offset = 0;
 439
 440         umac_cmd.id = REPLY_TX;
 441         umac_cmd.color = tx_info->color;
 442         umac_cmd.resp = 0;
 443
 444         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
 445                                      skb->data, skb->len);
 446 }
 447
 448 static int iwm_target_read(struct iwm_priv *iwm, __le32 address,
 449                            u8 *response, u32 resp_size)
 450 {
 451         struct iwm_udma_nonwifi_cmd target_cmd;
 452         struct iwm_nonwifi_cmd *cmd;
 453         u16 seq_num;
 454         int ret = 0;
 455
 456         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ;
 457         target_cmd.addr = address;
 458         target_cmd.op1_sz = cpu_to_le32(resp_size);
 459         target_cmd.op2 = 0;
 460         target_cmd.handle_by_hw = 0;
 461         target_cmd.resp = 1;
 462         target_cmd.eop = 1;
 463
 464         ret = iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 465         if (ret < 0)
 466                 IWM_ERR(iwm, "Couldn't send READ command\n");
 467
 468         /* When succeding, the send_target routine returns the seq number */
 469         seq_num = ret;
 470
 471         ret = wait_event_interruptible_timeout(iwm->nonwifi_queue,
 472                 (cmd = iwm_get_pending_nonwifi_cmd(iwm, seq_num,
 473                                           UMAC_HDI_OUT_OPCODE_READ)) != NULL,
 474                                                2 * HZ);
 475
 476         if (!ret) {
 477                 IWM_ERR(iwm, "Didn't receive a target READ answer\n");
 478                 return ret;
 479         }
 480
 481         memcpy(response, cmd->buf.hdr + sizeof(struct iwm_udma_in_hdr),
 482                resp_size);
 483
 484         kfree(cmd);
 485
 486         return ret;
 487 }
 488
 489 int iwm_read_mac(struct iwm_priv *iwm, u8 *mac)
 490 {
 491         int ret;
 492         u8 mac_align[ALIGN(ETH_ALEN, 8)];
 493
 494         ret = iwm_target_read(iwm, cpu_to_le32(WICO_MAC_ADDRESS_ADDR),
 495                               mac_align, sizeof(mac_align));
 496         if (ret < 0)
 497                 return ret;
 498
 499         if (is_valid_ether_addr(mac_align))
 500                 memcpy(mac, mac_align, ETH_ALEN);
 501         else {
 502                 IWM_ERR(iwm, "Invalid EEPROM MAC\n");
 503                 memcpy(mac, iwm->conf.mac_addr, ETH_ALEN);
 504                 get_random_bytes(&mac[3], 3);
 505         }
 506
 507         return 0;
 508 }
 509
 510 int iwm_set_tx_key(struct iwm_priv *iwm, u8 key_idx)
 511 {
 512         struct iwm_umac_tx_key_id tx_key_id;
 513
 514         if (!iwm->default_key || !iwm->default_key->in_use)
 515                 return -EINVAL;
 516
 517         tx_key_id.hdr.oid = UMAC_WIFI_IF_CMD_GLOBAL_TX_KEY_ID;
 518         tx_key_id.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_tx_key_id) -
 519                                              sizeof(struct iwm_umac_wifi_if));
 520
 521         tx_key_id.key_idx = key_idx;
 522
 523         return iwm_send_wifi_if_cmd(iwm, &tx_key_id, sizeof(tx_key_id), 1);
 524 }
 525
 526 static int iwm_check_profile(struct iwm_priv *iwm)
 527 {
 528         if (!iwm->umac_profile_active)
 529                 return -EAGAIN;
 530
 531         if (iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 532             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 533             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 534             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 535                 IWM_ERR(iwm, "Wrong unicast cipher: 0x%x\n",
 536                         iwm->umac_profile->sec.ucast_cipher);
 537                 return -EAGAIN;
 538         }
 539
 540         if (iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 541             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 542             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 543             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 544                 IWM_ERR(iwm, "Wrong multicast cipher: 0x%x\n",
 545                         iwm->umac_profile->sec.mcast_cipher);
 546                 return -EAGAIN;
 547         }
 548
 549         if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 ||
 550              iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) &&
 551             (iwm->umac_profile->sec.ucast_cipher !=
 552              iwm->umac_profile->sec.mcast_cipher)) {
 553                 IWM_ERR(iwm, "Unicast and multicast ciphers differ for WEP\n");
 554         }
 555
 556         return 0;
 557 }
 558
 559 int iwm_set_key(struct iwm_priv *iwm, bool remove, bool set_tx_key,
 560                 struct iwm_key *key)
 561 {
 562         int ret;
 563         u8 cmd[64], *sta_addr, *key_data, key_len;
 564         s8 key_idx;
 565         u16 cmd_size = 0;
 566         struct iwm_umac_key_hdr *key_hdr = &key->hdr;
 567         struct iwm_umac_key_wep40 *wep40 = (struct iwm_umac_key_wep40 *)cmd;
 568         struct iwm_umac_key_wep104 *wep104 = (struct iwm_umac_key_wep104 *)cmd;
 569         struct iwm_umac_key_tkip *tkip = (struct iwm_umac_key_tkip *)cmd;
 570         struct iwm_umac_key_ccmp *ccmp = (struct iwm_umac_key_ccmp *)cmd;
 571
 572         if (set_tx_key)
 573                 iwm->default_key = key;
 574
 575         /*
 576          * We check if our current profile is valid.
 577          * If not, we dont push the key, we just cache them,
 578          * so that with the next siwsessid call, the keys
 579          * will be actually pushed.
 580          */
 581         if (!remove) {
 582                 ret = iwm_check_profile(iwm);
 583                 if (ret < 0)
 584                         return ret;
 585         }
 586
 587         sta_addr = key->hdr.mac;
 588         key_data = key->key;
 589         key_len = key->key_len;
 590         key_idx = key->hdr.key_idx;
 591
 592         if (!remove) {
 593                 IWM_DBG_WEXT(iwm, DBG, "key_idx:%d set tx key:%d\n",
 594                              key_idx, set_tx_key);
 595                 IWM_DBG_WEXT(iwm, DBG, "key_len:%d\n", key_len);
 596                 IWM_DBG_WEXT(iwm, DBG, "MAC:%pM, idx:%d, multicast:%d\n",
 597                        key_hdr->mac, key_hdr->key_idx, key_hdr->multicast);
 598
 599                 IWM_DBG_WEXT(iwm, DBG, "profile: mcast:0x%x, ucast:0x%x\n",
 600                              iwm->umac_profile->sec.mcast_cipher,
 601                              iwm->umac_profile->sec.ucast_cipher);
 602                 IWM_DBG_WEXT(iwm, DBG, "profile: auth_type:0x%x, flags:0x%x\n",
 603                              iwm->umac_profile->sec.auth_type,
 604                              iwm->umac_profile->sec.flags);
 605
 606                 switch (key->alg) {
 607                 case UMAC_CIPHER_TYPE_WEP_40:
 608                         wep40->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP40_KEY;
 609                         wep40->hdr.buf_size =
 610                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep40) -
 611                                             sizeof(struct iwm_umac_wifi_if));
 612
 613                         memcpy(&wep40->key_hdr, key_hdr,
 614                                sizeof(struct iwm_umac_key_hdr));
 615                         memcpy(wep40->key, key_data, key_len);
 616                         wep40->static_key = 1;
 617
 618                         cmd_size = sizeof(struct iwm_umac_key_wep40);
 619                         break;
 620
 621                 case UMAC_CIPHER_TYPE_WEP_104:
 622                         wep104->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP104_KEY;
 623                         wep104->hdr.buf_size =
 624                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep104) -
 625                                             sizeof(struct iwm_umac_wifi_if));
 626
 627                         memcpy(&wep104->key_hdr, key_hdr,
 628                                sizeof(struct iwm_umac_key_hdr));
 629                         memcpy(wep104->key, key_data, key_len);
 630                         wep104->static_key = 1;
 631
 632                         cmd_size = sizeof(struct iwm_umac_key_wep104);
 633                         break;
 634
 635                 case UMAC_CIPHER_TYPE_CCMP:
 636                         key_hdr->key_idx++;
 637                         ccmp->hdr.oid = UMAC_WIFI_IF_CMD_ADD_CCMP_KEY;
 638                         ccmp->hdr.buf_size =
 639                                 cpu_to_le16(sizeof(struct iwm_umac_key_ccmp) -
 640                                             sizeof(struct iwm_umac_wifi_if));
 641
 642                         memcpy(&ccmp->key_hdr, key_hdr,
 643                                sizeof(struct iwm_umac_key_hdr));
 644
 645                         memcpy(ccmp->key, key_data, key_len);
 646
 647                         if (key->flags & IW_ENCODE_EXT_RX_SEQ_VALID)
 648                                 memcpy(ccmp->iv_count, key->rx_seq, 6);
 649
 650                         cmd_size = sizeof(struct iwm_umac_key_ccmp);
 651                         break;
 652
 653                 case UMAC_CIPHER_TYPE_TKIP:
 654                         key_hdr->key_idx++;
 655                         tkip->hdr.oid = UMAC_WIFI_IF_CMD_ADD_TKIP_KEY;
 656                         tkip->hdr.buf_size =
 657                                 cpu_to_le16(sizeof(struct iwm_umac_key_tkip) -
 658                                             sizeof(struct iwm_umac_wifi_if));
 659
 660                         memcpy(&tkip->key_hdr, key_hdr,
 661                                sizeof(struct iwm_umac_key_hdr));
 662
 663                         memcpy(tkip->tkip_key, key_data, IWM_TKIP_KEY_SIZE);
 664                         memcpy(tkip->mic_tx_key, key_data + IWM_TKIP_KEY_SIZE,
 665                                IWM_TKIP_MIC_SIZE);
 666                         memcpy(tkip->mic_rx_key,
 667                                key_data + IWM_TKIP_KEY_SIZE + IWM_TKIP_MIC_SIZE,
 668                                IWM_TKIP_MIC_SIZE);
 669
 670                         if (key->flags & IW_ENCODE_EXT_RX_SEQ_VALID)
 671                                 memcpy(ccmp->iv_count, key->rx_seq, 6);
 672
 673                         cmd_size = sizeof(struct iwm_umac_key_tkip);
 674                         break;
 675
 676                 default:
 677                         return -ENOTSUPP;
 678                 }
 679
 680                 if ((key->alg == UMAC_CIPHER_TYPE_CCMP) ||
 681                     (key->alg == UMAC_CIPHER_TYPE_TKIP))
 682                         /*
 683                          * UGLY_UGLY_UGLY
 684                          * Copied HACK from the MWG driver.
 685                          * Without it, the key is set before the second
 686                          * EAPOL frame is sent, and the latter is thus
 687                          * encrypted.
 688                          */
 689                         schedule_timeout_interruptible(usecs_to_jiffies(300));
 690
 691                 ret =  iwm_send_wifi_if_cmd(iwm, cmd, cmd_size, 1);
 692                 if (ret < 0)
 693                         goto err;
 694
 695                 /*
 696                  * We need a default key only if it is set and
 697                  * if we're doing WEP.
 698                  */
 699                 if (iwm->default_key == key &&
 700                         ((key->alg == UMAC_CIPHER_TYPE_WEP_40) ||
 701                          (key->alg == UMAC_CIPHER_TYPE_WEP_104))) {
 702                         ret = iwm_set_tx_key(iwm, key_idx);
 703                         if (ret < 0)
 704                                 goto err;
 705                 }
 706         } else {
 707                 struct iwm_umac_key_remove key_remove;
 708
 709                 key_remove.hdr.oid = UMAC_WIFI_IF_CMD_REMOVE_KEY;
 710                 key_remove.hdr.buf_size =
 711                         cpu_to_le16(sizeof(struct iwm_umac_key_remove) -
 712                                     sizeof(struct iwm_umac_wifi_if));
 713                 memcpy(&key_remove.key_hdr, key_hdr,
 714                        sizeof(struct iwm_umac_key_hdr));
 715
 716                 ret =  iwm_send_wifi_if_cmd(iwm, &key_remove,
 717                                             sizeof(struct iwm_umac_key_remove),
 718                                             1);
 719                 if (ret < 0)
 720                         return ret;
 721
 722                 iwm->keys[key_idx].in_use = 0;
 723         }
 724
 725         return 0;
 726
 727  err:
 728         kfree(key);
 729         return ret;
 730 }
 731
 732
 733 int iwm_send_mlme_profile(struct iwm_priv *iwm)
 734 {
 735         int ret, i;
 736         struct iwm_umac_profile profile;
 737
 738         memcpy(&profile, iwm->umac_profile, sizeof(profile));
 739
 740         profile.hdr.oid = UMAC_WIFI_IF_CMD_SET_PROFILE;
 741         profile.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_profile) -
 742                                            sizeof(struct iwm_umac_wifi_if));
 743
 744         ret = iwm_send_wifi_if_cmd(iwm, &profile, sizeof(profile), 1);
 745         if (ret < 0) {
 746                 IWM_ERR(iwm, "Send profile command failed\n");
 747                 return ret;
 748         }
 749
 750         /* Wait for the profile to be active */
 751         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 752                                                iwm->umac_profile_active == 1,
 753                                                3 * HZ);
 754         if (!ret)
 755                 return -EBUSY;
 756
 757
 758         for (i = 0; i < IWM_NUM_KEYS; i++)
 759                 if (iwm->keys[i].in_use) {
 760                         int default_key = 0;
 761                         struct iwm_key *key = &iwm->keys[i];
 762
 763                         if (key == iwm->default_key)
 764                                 default_key = 1;
 765
 766                         /* Wait for the profile before sending the keys */
 767                         wait_event_interruptible_timeout(iwm->mlme_queue,
 768                              (test_bit(IWM_STATUS_ASSOCIATING, &iwm->status) ||
 769                               test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)),
 770                                                          3 * HZ);
 771
 772                         ret = iwm_set_key(iwm, 0, default_key, key);
 773                         if (ret < 0)
 774                                 return ret;
 775                 }
 776
 777         return 0;
 778 }
 779
 780 int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
 781 {
 782         int ret;
 783         struct iwm_umac_invalidate_profile invalid;
 784
 785         invalid.hdr.oid = UMAC_WIFI_IF_CMD_INVALIDATE_PROFILE;
 786         invalid.hdr.buf_size =
 787                 cpu_to_le16(sizeof(struct iwm_umac_invalidate_profile) -
 788                             sizeof(struct iwm_umac_wifi_if));
 789
 790         invalid.reason = WLAN_REASON_UNSPECIFIED;
 791
 792         ret = iwm_send_wifi_if_cmd(iwm, &invalid, sizeof(invalid), 1);
 793         if (ret < 0)
 794                 return ret;
 795
 796         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 797                                  (iwm->umac_profile_active == 0),
 798                                                2 * HZ);
 799         if (!ret)
 800                 return -EBUSY;
 801
 802         return 0;
 803 }
 804
 805 int iwm_send_umac_stats_req(struct iwm_priv *iwm, u32 flags)
 806 {
 807         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 808         struct iwm_umac_cmd umac_cmd;
 809         struct iwm_umac_cmd_stats_req stats_req;
 810
 811         stats_req.flags = cpu_to_le32(flags);
 812
 813         umac_cmd.id = UMAC_CMD_OPCODE_STATISTIC_REQUEST;
 814         umac_cmd.resp = 0;
 815
 816         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stats_req,
 817                                      sizeof(struct iwm_umac_cmd_stats_req));
 818 }
 819
 820 int iwm_send_umac_channel_list(struct iwm_priv *iwm)
 821 {
 822         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 823         struct iwm_umac_cmd umac_cmd;
 824         struct iwm_umac_cmd_get_channel_list *ch_list;
 825         int size = sizeof(struct iwm_umac_cmd_get_channel_list) +
 826                    sizeof(struct iwm_umac_channel_info) * 4;
 827         int ret;
 828
 829         ch_list = kzalloc(size, GFP_KERNEL);
 830         if (!ch_list) {
 831                 IWM_ERR(iwm, "Couldn't allocate channel list cmd\n");
 832                 return -ENOMEM;
 833         }
 834
 835         ch_list->ch[0].band = UMAC_BAND_2GHZ;
 836         ch_list->ch[0].type = UMAC_CHANNEL_WIDTH_20MHZ;
 837         ch_list->ch[0].flags = UMAC_CHANNEL_FLAG_VALID;
 838
 839         ch_list->ch[1].band = UMAC_BAND_5GHZ;
 840         ch_list->ch[1].type = UMAC_CHANNEL_WIDTH_20MHZ;
 841         ch_list->ch[1].flags = UMAC_CHANNEL_FLAG_VALID;
 842
 843         ch_list->ch[2].band = UMAC_BAND_2GHZ;
 844         ch_list->ch[2].type = UMAC_CHANNEL_WIDTH_20MHZ;
 845         ch_list->ch[2].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 846
 847         ch_list->ch[3].band = UMAC_BAND_5GHZ;
 848         ch_list->ch[3].type = UMAC_CHANNEL_WIDTH_20MHZ;
 849         ch_list->ch[3].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 850
 851         ch_list->count = cpu_to_le16(4);
 852
 853         umac_cmd.id = UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST;
 854         umac_cmd.resp = 1;
 855
 856         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, ch_list, size);
 857
 858         kfree(ch_list);
 859
 860         return ret;
 861 }
 862
 863 int iwm_scan_ssids(struct iwm_priv *iwm, struct cfg80211_ssid *ssids,
 864                    int ssid_num)
 865 {
 866         struct iwm_umac_cmd_scan_request req;
 867         int i, ret;
 868
 869         memset(&req, 0, sizeof(struct iwm_umac_cmd_scan_request));
 870
 871         req.hdr.oid = UMAC_WIFI_IF_CMD_SCAN_REQUEST;
 872         req.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_cmd_scan_request)
 873                                        - sizeof(struct iwm_umac_wifi_if));
 874         req.type = UMAC_WIFI_IF_SCAN_TYPE_USER;
 875         req.timeout = 2;
 876         req.seq_num = iwm->scan_id;
 877         req.ssid_num = min(ssid_num, UMAC_WIFI_IF_PROBE_OPTION_MAX);
 878
 879         for (i = 0; i < req.ssid_num; i++) {
 880                 memcpy(req.ssids[i].ssid, ssids[i].ssid, ssids[i].ssid_len);
 881                 req.ssids[i].ssid_len = ssids[i].ssid_len;
 882         }
 883
 884         ret = iwm_send_wifi_if_cmd(iwm, &req, sizeof(req), 0);
 885         if (ret < 0) {
 886                 IWM_ERR(iwm, "Couldn't send scan request\n");
 887                 return ret;
 888         }
 889
 890         iwm->scan_id = iwm->scan_id++ % IWM_SCAN_ID_MAX;
 891
 892         return 0;
 893 }
 894
 895 int iwm_scan_one_ssid(struct iwm_priv *iwm, u8 *ssid, int ssid_len)
 896 {
 897         struct cfg80211_ssid one_ssid;
 898
 899         if (test_and_set_bit(IWM_STATUS_SCANNING, &iwm->status))
 900                 return 0;
 901
 902         one_ssid.ssid_len = min(ssid_len, IEEE80211_MAX_SSID_LEN);
 903         memcpy(&one_ssid.ssid, ssid, one_ssid.ssid_len);
 904
 905         return iwm_scan_ssids(iwm, &one_ssid, 1);
 906 }
 907
 908 int iwm_target_reset(struct iwm_priv *iwm)
 909 {
 910         struct iwm_udma_nonwifi_cmd target_cmd;
 911
 912         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_REBOOT;
 913         target_cmd.addr = 0;
 914         target_cmd.op1_sz = 0;
 915         target_cmd.op2 = 0;
 916         target_cmd.handle_by_hw = 0;
 917         target_cmd.resp = 0;
 918         target_cmd.eop = 1;
 919
 920         return iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 921 }