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         if (!test_bit(IWM_STATUS_READY, &iwm->status)) {
  81                 IWM_ERR(iwm, "Interface is not ready yet");
  82                 return -EAGAIN;
  83         }
  84
  85         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
  86         umac_cmd.resp = resp;
  87
  88         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
  89                                     payload, payload_size);
  90
  91         if (resp) {
  92                 ret = wait_event_interruptible_timeout(iwm->wifi_ntfy_queue,
  93                                    test_and_clear_bit(oid, &iwm->wifi_ntfy[0]),
  94                                    3 * HZ);
  95
  96                 return ret ? 0 : -EBUSY;
  97         }
  98
  99         return ret;
 100 }
 101
 102 static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
 103 {
 104         {4, 3, 0, COEX_UNASSOC_IDLE_FLAGS},
 105         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 106         {4, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 107         {4, 3, 0, COEX_CALIBRATION_FLAGS},
 108         {4, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 109         {4, 3, 0, COEX_CONNECTION_ESTAB_FLAGS},
 110         {4, 3, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 111         {4, 3, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 112         {4, 3, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 113         {4, 3, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 114         {6, 3, 0, COEX_XOR_RF_ON_FLAGS},
 115         {4, 3, 0, COEX_RF_OFF_FLAGS},
 116         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 117         {4, 3, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 118         {4, 3, 0, COEX_RSRVD1_FLAGS},
 119         {4, 3, 0, COEX_RSRVD2_FLAGS}
 120 };
 121
 122 static struct coex_event iwm_sta_cm_prio_tbl[COEX_EVENTS_NUM] =
 123 {
 124         {1, 1, 0, COEX_UNASSOC_IDLE_FLAGS},
 125         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 126         {3, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 127         {5, 5, 0, COEX_CALIBRATION_FLAGS},
 128         {3, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 129         {5, 4, 0, COEX_CONNECTION_ESTAB_FLAGS},
 130         {4, 4, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 131         {4, 4, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 132         {4, 4, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 133         {4, 4, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 134         {1, 1, 0, COEX_RF_ON_FLAGS},
 135         {1, 1, 0, COEX_RF_OFF_FLAGS},
 136         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 137         {5, 4, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 138         {1, 1, 0, COEX_RSRVD1_FLAGS},
 139         {1, 1, 0, COEX_RSRVD2_FLAGS}
 140 };
 141
 142 int iwm_send_prio_table(struct iwm_priv *iwm)
 143 {
 144         struct iwm_coex_prio_table_cmd coex_table_cmd;
 145         u32 coex_enabled, mode_enabled;
 146
 147         memset(&coex_table_cmd, 0, sizeof(struct iwm_coex_prio_table_cmd));
 148
 149         coex_table_cmd.flags = COEX_FLAGS_STA_TABLE_VALID_MSK;
 150
 151         switch (iwm->conf.coexist_mode) {
 152         case COEX_MODE_XOR:
 153         case COEX_MODE_CM:
 154                 coex_enabled = 1;
 155                 break;
 156         default:
 157                 coex_enabled = 0;
 158                 break;
 159         }
 160
 161         switch (iwm->conf.mode) {
 162         case UMAC_MODE_BSS:
 163         case UMAC_MODE_IBSS:
 164                 mode_enabled = 1;
 165                 break;
 166         default:
 167                 mode_enabled = 0;
 168                 break;
 169         }
 170
 171         if (coex_enabled && mode_enabled) {
 172                 coex_table_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK |
 173                                         COEX_FLAGS_ASSOC_WAKEUP_UMASK_MSK |
 174                                         COEX_FLAGS_UNASSOC_WAKEUP_UMASK_MSK;
 175
 176                 switch (iwm->conf.coexist_mode) {
 177                 case COEX_MODE_XOR:
 178                         memcpy(coex_table_cmd.sta_prio, iwm_sta_xor_prio_tbl,
 179                                sizeof(iwm_sta_xor_prio_tbl));
 180                         break;
 181                 case COEX_MODE_CM:
 182                         memcpy(coex_table_cmd.sta_prio, iwm_sta_cm_prio_tbl,
 183                                sizeof(iwm_sta_cm_prio_tbl));
 184                         break;
 185                 default:
 186                         IWM_ERR(iwm, "Invalid coex_mode 0x%x\n",
 187                                 iwm->conf.coexist_mode);
 188                         break;
 189                 }
 190         } else
 191                 IWM_WARN(iwm, "coexistense disabled\n");
 192
 193         return iwm_send_lmac_ptrough_cmd(iwm, COEX_PRIORITY_TABLE_CMD,
 194                                 &coex_table_cmd,
 195                                 sizeof(struct iwm_coex_prio_table_cmd), 1);
 196 }
 197
 198 int iwm_send_init_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 199 {
 200         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 201
 202         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 203
 204         cal_cfg_cmd.ucode_cfg.init.enable = cpu_to_le32(calib_requested);
 205         cal_cfg_cmd.ucode_cfg.init.start = cpu_to_le32(calib_requested);
 206         cal_cfg_cmd.ucode_cfg.init.send_res = cpu_to_le32(calib_requested);
 207         cal_cfg_cmd.ucode_cfg.flags =
 208                 cpu_to_le32(CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_AFTER_MSK);
 209
 210         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 211                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 1);
 212 }
 213
 214 int iwm_send_periodic_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 215 {
 216         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 217
 218         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 219
 220         cal_cfg_cmd.ucode_cfg.periodic.enable = cpu_to_le32(calib_requested);
 221         cal_cfg_cmd.ucode_cfg.periodic.start = cpu_to_le32(calib_requested);
 222
 223         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 224                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 0);
 225 }
 226
 227 int iwm_store_rxiq_calib_result(struct iwm_priv *iwm)
 228 {
 229         struct iwm_calib_rxiq *rxiq;
 230         u8 *eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 231         int grplen = sizeof(struct iwm_calib_rxiq_group);
 232
 233         rxiq = kzalloc(sizeof(struct iwm_calib_rxiq), GFP_KERNEL);
 234         if (!rxiq) {
 235                 IWM_ERR(iwm, "Couldn't alloc memory for RX IQ\n");
 236                 return -ENOMEM;
 237         }
 238
 239         eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 240         if (IS_ERR(eeprom_rxiq)) {
 241                 IWM_ERR(iwm, "Couldn't access EEPROM RX IQ entry\n");
 242                 kfree(rxiq);
 243                 return PTR_ERR(eeprom_rxiq);
 244         }
 245
 246         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].buf = (u8 *)rxiq;
 247         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].size = sizeof(*rxiq);
 248
 249         rxiq->hdr.opcode = SHILOH_PHY_CALIBRATE_RX_IQ_CMD;
 250         rxiq->hdr.first_grp = 0;
 251         rxiq->hdr.grp_num = 1;
 252         rxiq->hdr.all_data_valid = 1;
 253
 254         memcpy(&rxiq->group[0], eeprom_rxiq, 4 * grplen);
 255         memcpy(&rxiq->group[4], eeprom_rxiq + 6 * grplen, grplen);
 256
 257         return 0;
 258 }
 259
 260 int iwm_send_calib_results(struct iwm_priv *iwm)
 261 {
 262         int i, ret = 0;
 263
 264         for (i = PHY_CALIBRATE_OPCODES_NUM; i < CALIBRATION_CMD_NUM; i++) {
 265                 if (test_bit(i - PHY_CALIBRATE_OPCODES_NUM,
 266                              &iwm->calib_done_map)) {
 267                         IWM_DBG_CMD(iwm, DBG,
 268                                     "Send calibration %d result\n", i);
 269                         ret |= iwm_send_lmac_ptrough_cmd(iwm,
 270                                         REPLY_PHY_CALIBRATION_CMD,
 271                                         iwm->calib_res[i].buf,
 272                                         iwm->calib_res[i].size, 0);
 273
 274                         kfree(iwm->calib_res[i].buf);
 275                         iwm->calib_res[i].buf = NULL;
 276                         iwm->calib_res[i].size = 0;
 277                 }
 278         }
 279
 280         return ret;
 281 }
 282
 283 int iwm_send_ct_kill_cfg(struct iwm_priv *iwm, u8 entry, u8 exit)
 284 {
 285         struct iwm_ct_kill_cfg_cmd cmd;
 286
 287         cmd.entry_threshold = entry;
 288         cmd.exit_threshold = exit;
 289
 290         return iwm_send_lmac_ptrough_cmd(iwm, REPLY_CT_KILL_CONFIG_CMD, &cmd,
 291                                          sizeof(struct iwm_ct_kill_cfg_cmd), 0);
 292 }
 293
 294 int iwm_send_umac_reset(struct iwm_priv *iwm, __le32 reset_flags, bool resp)
 295 {
 296         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 297         struct iwm_umac_cmd umac_cmd;
 298         struct iwm_umac_cmd_reset reset;
 299
 300         reset.flags = reset_flags;
 301
 302         umac_cmd.id = UMAC_CMD_OPCODE_RESET;
 303         umac_cmd.resp = resp;
 304
 305         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &reset,
 306                                      sizeof(struct iwm_umac_cmd_reset));
 307 }
 308
 309 int iwm_umac_set_config_fix(struct iwm_priv *iwm, u16 tbl, u16 key, u32 value)
 310 {
 311         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 312         struct iwm_umac_cmd umac_cmd;
 313         struct iwm_umac_cmd_set_param_fix param;
 314
 315         if ((tbl != UMAC_PARAM_TBL_CFG_FIX) &&
 316             (tbl != UMAC_PARAM_TBL_FA_CFG_FIX))
 317                 return -EINVAL;
 318
 319         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_FIX;
 320         umac_cmd.resp = 0;
 321
 322         param.tbl = cpu_to_le16(tbl);
 323         param.key = cpu_to_le16(key);
 324         param.value = cpu_to_le32(value);
 325
 326         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &param,
 327                                      sizeof(struct iwm_umac_cmd_set_param_fix));
 328 }
 329
 330 int iwm_umac_set_config_var(struct iwm_priv *iwm, u16 key,
 331                             void *payload, u16 payload_size)
 332 {
 333         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 334         struct iwm_umac_cmd umac_cmd;
 335         struct iwm_umac_cmd_set_param_var *param_hdr;
 336         u8 *param;
 337         int ret;
 338
 339         param = kzalloc(payload_size +
 340                         sizeof(struct iwm_umac_cmd_set_param_var), GFP_KERNEL);
 341         if (!param) {
 342                 IWM_ERR(iwm, "Couldn't allocate param\n");
 343                 return -ENOMEM;
 344         }
 345
 346         param_hdr = (struct iwm_umac_cmd_set_param_var *)param;
 347
 348         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_VAR;
 349         umac_cmd.resp = 0;
 350
 351         param_hdr->tbl = cpu_to_le16(UMAC_PARAM_TBL_CFG_VAR);
 352         param_hdr->key = cpu_to_le16(key);
 353         param_hdr->len = cpu_to_le16(payload_size);
 354         memcpy(param + sizeof(struct iwm_umac_cmd_set_param_var),
 355                payload, payload_size);
 356
 357         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, param,
 358                                     sizeof(struct iwm_umac_cmd_set_param_var) +
 359                                     payload_size);
 360         kfree(param);
 361
 362         return ret;
 363 }
 364
 365 int iwm_send_umac_config(struct iwm_priv *iwm, __le32 reset_flags)
 366 {
 367         int ret;
 368
 369         /* Use UMAC default values */
 370         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 371                                       CFG_POWER_INDEX, iwm->conf.power_index);
 372         if (ret < 0)
 373                 return ret;
 374
 375         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX,
 376                                       CFG_FRAG_THRESHOLD,
 377                                       iwm->conf.frag_threshold);
 378         if (ret < 0)
 379                 return ret;
 380
 381         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 382                                       CFG_RTS_THRESHOLD,
 383                                       iwm->conf.rts_threshold);
 384         if (ret < 0)
 385                 return ret;
 386
 387         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 388                                       CFG_CTS_TO_SELF, iwm->conf.cts_to_self);
 389         if (ret < 0)
 390                 return ret;
 391
 392         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 393                                       CFG_WIRELESS_MODE,
 394                                       iwm->conf.wireless_mode);
 395         if (ret < 0)
 396                 return ret;
 397
 398         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 399                                       CFG_COEX_MODE, iwm->conf.coexist_mode);
 400         if (ret < 0)
 401                 return ret;
 402
 403         /*
 404         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 405                                       CFG_ASSOCIATION_TIMEOUT,
 406                                       iwm->conf.assoc_timeout);
 407         if (ret < 0)
 408                 return ret;
 409
 410         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 411                                       CFG_ROAM_TIMEOUT,
 412                                       iwm->conf.roam_timeout);
 413         if (ret < 0)
 414                 return ret;
 415
 416         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 417                                       CFG_WIRELESS_MODE,
 418                                       WIRELESS_MODE_11A | WIRELESS_MODE_11G);
 419         if (ret < 0)
 420                 return ret;
 421         */
 422
 423         ret = iwm_umac_set_config_var(iwm, CFG_NET_ADDR,
 424                                       iwm_to_ndev(iwm)->dev_addr, ETH_ALEN);
 425         if (ret < 0)
 426                 return ret;
 427
 428         /* UMAC PM static configurations */
 429         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 430                                       CFG_PM_LEGACY_RX_TIMEOUT, 0x12C);
 431         if (ret < 0)
 432                 return ret;
 433
 434         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 435                                       CFG_PM_LEGACY_TX_TIMEOUT, 0x15E);
 436         if (ret < 0)
 437                 return ret;
 438
 439         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 440                                       CFG_PM_CTRL_FLAGS, 0x1);
 441         if (ret < 0)
 442                 return ret;
 443
 444         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 445                                       CFG_PM_KEEP_ALIVE_IN_BEACONS, 0x80);
 446         if (ret < 0)
 447                 return ret;
 448
 449         /* reset UMAC */
 450         ret = iwm_send_umac_reset(iwm, reset_flags, 1);
 451         if (ret < 0)
 452                 return ret;
 453
 454         ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_RESET, IWM_SRC_UMAC,
 455                                WAIT_NOTIF_TIMEOUT);
 456         if (ret) {
 457                 IWM_ERR(iwm, "Wait for UMAC RESET timeout\n");
 458                 return ret;
 459         }
 460
 461         return ret;
 462 }
 463
 464 int iwm_send_packet(struct iwm_priv *iwm, struct sk_buff *skb, int pool_id)
 465 {
 466         struct iwm_udma_wifi_cmd udma_cmd;
 467         struct iwm_umac_cmd umac_cmd;
 468         struct iwm_tx_info *tx_info = skb_to_tx_info(skb);
 469
 470         udma_cmd.eop = 1; /* always set eop for non-concatenated Tx */
 471         udma_cmd.credit_group = pool_id;
 472         udma_cmd.ra_tid = tx_info->sta << 4 | tx_info->tid;
 473         udma_cmd.lmac_offset = 0;
 474
 475         umac_cmd.id = REPLY_TX;
 476         umac_cmd.color = tx_info->color;
 477         umac_cmd.resp = 0;
 478
 479         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
 480                                      skb->data, skb->len);
 481 }
 482
 483 static int iwm_target_read(struct iwm_priv *iwm, __le32 address,
 484                            u8 *response, u32 resp_size)
 485 {
 486         struct iwm_udma_nonwifi_cmd target_cmd;
 487         struct iwm_nonwifi_cmd *cmd;
 488         u16 seq_num;
 489         int ret = 0;
 490
 491         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ;
 492         target_cmd.addr = address;
 493         target_cmd.op1_sz = cpu_to_le32(resp_size);
 494         target_cmd.op2 = 0;
 495         target_cmd.handle_by_hw = 0;
 496         target_cmd.resp = 1;
 497         target_cmd.eop = 1;
 498
 499         ret = iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 500         if (ret < 0) {
 501                 IWM_ERR(iwm, "Couldn't send READ command\n");
 502                 return ret;
 503         }
 504
 505         /* When succeding, the send_target routine returns the seq number */
 506         seq_num = ret;
 507
 508         ret = wait_event_interruptible_timeout(iwm->nonwifi_queue,
 509                 (cmd = iwm_get_pending_nonwifi_cmd(iwm, seq_num,
 510                                           UMAC_HDI_OUT_OPCODE_READ)) != NULL,
 511                                                2 * HZ);
 512
 513         if (!ret) {
 514                 IWM_ERR(iwm, "Didn't receive a target READ answer\n");
 515                 return ret;
 516         }
 517
 518         memcpy(response, cmd->buf.hdr + sizeof(struct iwm_udma_in_hdr),
 519                resp_size);
 520
 521         kfree(cmd);
 522
 523         return 0;
 524 }
 525
 526 int iwm_read_mac(struct iwm_priv *iwm, u8 *mac)
 527 {
 528         int ret;
 529         u8 mac_align[ALIGN(ETH_ALEN, 8)];
 530
 531         ret = iwm_target_read(iwm, cpu_to_le32(WICO_MAC_ADDRESS_ADDR),
 532                               mac_align, sizeof(mac_align));
 533         if (ret)
 534                 return ret;
 535
 536         if (is_valid_ether_addr(mac_align))
 537                 memcpy(mac, mac_align, ETH_ALEN);
 538         else {
 539                 IWM_ERR(iwm, "Invalid EEPROM MAC\n");
 540                 memcpy(mac, iwm->conf.mac_addr, ETH_ALEN);
 541                 get_random_bytes(&mac[3], 3);
 542         }
 543
 544         return 0;
 545 }
 546
 547 static int iwm_check_profile(struct iwm_priv *iwm)
 548 {
 549         if (!iwm->umac_profile_active)
 550                 return -EAGAIN;
 551
 552         if (iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 553             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 554             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 555             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 556                 IWM_ERR(iwm, "Wrong unicast cipher: 0x%x\n",
 557                         iwm->umac_profile->sec.ucast_cipher);
 558                 return -EAGAIN;
 559         }
 560
 561         if (iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 562             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 563             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 564             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 565                 IWM_ERR(iwm, "Wrong multicast cipher: 0x%x\n",
 566                         iwm->umac_profile->sec.mcast_cipher);
 567                 return -EAGAIN;
 568         }
 569
 570         if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 ||
 571              iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) &&
 572             (iwm->umac_profile->sec.ucast_cipher !=
 573              iwm->umac_profile->sec.mcast_cipher)) {
 574                 IWM_ERR(iwm, "Unicast and multicast ciphers differ for WEP\n");
 575         }
 576
 577         return 0;
 578 }
 579
 580 int iwm_set_tx_key(struct iwm_priv *iwm, u8 key_idx)
 581 {
 582         struct iwm_umac_tx_key_id tx_key_id;
 583         int ret;
 584
 585         ret = iwm_check_profile(iwm);
 586         if (ret < 0)
 587                 return ret;
 588
 589         /* UMAC only allows to set default key for WEP and auth type is
 590          * NOT 802.1X or RSNA. */
 591         if ((iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 592              iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104) ||
 593             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_8021X ||
 594             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_RSNA_PSK)
 595                 return 0;
 596
 597         tx_key_id.hdr.oid = UMAC_WIFI_IF_CMD_GLOBAL_TX_KEY_ID;
 598         tx_key_id.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_tx_key_id) -
 599                                              sizeof(struct iwm_umac_wifi_if));
 600
 601         tx_key_id.key_idx = key_idx;
 602
 603         return iwm_send_wifi_if_cmd(iwm, &tx_key_id, sizeof(tx_key_id), 1);
 604 }
 605
 606 int iwm_set_key(struct iwm_priv *iwm, bool remove, struct iwm_key *key)
 607 {
 608         int ret = 0;
 609         u8 cmd[64], *sta_addr, *key_data, key_len;
 610         s8 key_idx;
 611         u16 cmd_size = 0;
 612         struct iwm_umac_key_hdr *key_hdr = &key->hdr;
 613         struct iwm_umac_key_wep40 *wep40 = (struct iwm_umac_key_wep40 *)cmd;
 614         struct iwm_umac_key_wep104 *wep104 = (struct iwm_umac_key_wep104 *)cmd;
 615         struct iwm_umac_key_tkip *tkip = (struct iwm_umac_key_tkip *)cmd;
 616         struct iwm_umac_key_ccmp *ccmp = (struct iwm_umac_key_ccmp *)cmd;
 617
 618         if (!remove) {
 619                 ret = iwm_check_profile(iwm);
 620                 if (ret < 0)
 621                         return ret;
 622         }
 623
 624         sta_addr = key->hdr.mac;
 625         key_data = key->key;
 626         key_len = key->key_len;
 627         key_idx = key->hdr.key_idx;
 628
 629         if (!remove) {
 630                 u8 auth_type = iwm->umac_profile->sec.auth_type;
 631
 632                 IWM_DBG_WEXT(iwm, DBG, "key_idx:%d\n", key_idx);
 633                 IWM_DBG_WEXT(iwm, DBG, "key_len:%d\n", key_len);
 634                 IWM_DBG_WEXT(iwm, DBG, "MAC:%pM, idx:%d, multicast:%d\n",
 635                        key_hdr->mac, key_hdr->key_idx, key_hdr->multicast);
 636
 637                 IWM_DBG_WEXT(iwm, DBG, "profile: mcast:0x%x, ucast:0x%x\n",
 638                              iwm->umac_profile->sec.mcast_cipher,
 639                              iwm->umac_profile->sec.ucast_cipher);
 640                 IWM_DBG_WEXT(iwm, DBG, "profile: auth_type:0x%x, flags:0x%x\n",
 641                              iwm->umac_profile->sec.auth_type,
 642                              iwm->umac_profile->sec.flags);
 643
 644                 switch (key->cipher) {
 645                 case WLAN_CIPHER_SUITE_WEP40:
 646                         wep40->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP40_KEY;
 647                         wep40->hdr.buf_size =
 648                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep40) -
 649                                             sizeof(struct iwm_umac_wifi_if));
 650
 651                         memcpy(&wep40->key_hdr, key_hdr,
 652                                sizeof(struct iwm_umac_key_hdr));
 653                         memcpy(wep40->key, key_data, key_len);
 654                         wep40->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_wep40);
 659                         break;
 660
 661                 case WLAN_CIPHER_SUITE_WEP104:
 662                         wep104->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP104_KEY;
 663                         wep104->hdr.buf_size =
 664                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep104) -
 665                                             sizeof(struct iwm_umac_wifi_if));
 666
 667                         memcpy(&wep104->key_hdr, key_hdr,
 668                                sizeof(struct iwm_umac_key_hdr));
 669                         memcpy(wep104->key, key_data, key_len);
 670                         wep104->static_key =
 671                                 !!((auth_type != UMAC_AUTH_TYPE_8021X) &&
 672                                    (auth_type != UMAC_AUTH_TYPE_RSNA_PSK));
 673
 674                         cmd_size = sizeof(struct iwm_umac_key_wep104);
 675                         break;
 676
 677                 case WLAN_CIPHER_SUITE_CCMP:
 678                         key_hdr->key_idx++;
 679                         ccmp->hdr.oid = UMAC_WIFI_IF_CMD_ADD_CCMP_KEY;
 680                         ccmp->hdr.buf_size =
 681                                 cpu_to_le16(sizeof(struct iwm_umac_key_ccmp) -
 682                                             sizeof(struct iwm_umac_wifi_if));
 683
 684                         memcpy(&ccmp->key_hdr, key_hdr,
 685                                sizeof(struct iwm_umac_key_hdr));
 686
 687                         memcpy(ccmp->key, key_data, key_len);
 688
 689                         if (key->seq_len)
 690                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 691
 692                         cmd_size = sizeof(struct iwm_umac_key_ccmp);
 693                         break;
 694
 695                 case WLAN_CIPHER_SUITE_TKIP:
 696                         key_hdr->key_idx++;
 697                         tkip->hdr.oid = UMAC_WIFI_IF_CMD_ADD_TKIP_KEY;
 698                         tkip->hdr.buf_size =
 699                                 cpu_to_le16(sizeof(struct iwm_umac_key_tkip) -
 700                                             sizeof(struct iwm_umac_wifi_if));
 701
 702                         memcpy(&tkip->key_hdr, key_hdr,
 703                                sizeof(struct iwm_umac_key_hdr));
 704
 705                         memcpy(tkip->tkip_key, key_data, IWM_TKIP_KEY_SIZE);
 706                         memcpy(tkip->mic_tx_key, key_data + IWM_TKIP_KEY_SIZE,
 707                                IWM_TKIP_MIC_SIZE);
 708                         memcpy(tkip->mic_rx_key,
 709                                key_data + IWM_TKIP_KEY_SIZE + IWM_TKIP_MIC_SIZE,
 710                                IWM_TKIP_MIC_SIZE);
 711
 712                         if (key->seq_len)
 713                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 714
 715                         cmd_size = sizeof(struct iwm_umac_key_tkip);
 716                         break;
 717
 718                 default:
 719                         return -ENOTSUPP;
 720                 }
 721
 722                 if ((key->cipher == WLAN_CIPHER_SUITE_TKIP) ||
 723                     (key->cipher == WLAN_CIPHER_SUITE_CCMP))
 724                         /*
 725                          * UGLY_UGLY_UGLY
 726                          * Copied HACK from the MWG driver.
 727                          * Without it, the key is set before the second
 728                          * EAPOL frame is sent, and the latter is thus
 729                          * encrypted.
 730                          */
 731                         schedule_timeout_interruptible(usecs_to_jiffies(300));
 732
 733                 ret =  iwm_send_wifi_if_cmd(iwm, cmd, cmd_size, 1);
 734         } else {
 735                 struct iwm_umac_key_remove key_remove;
 736
 737                 IWM_DBG_WEXT(iwm, ERR, "Removing key_idx:%d\n", key_idx);
 738
 739                 key_remove.hdr.oid = UMAC_WIFI_IF_CMD_REMOVE_KEY;
 740                 key_remove.hdr.buf_size =
 741                         cpu_to_le16(sizeof(struct iwm_umac_key_remove) -
 742                                     sizeof(struct iwm_umac_wifi_if));
 743                 memcpy(&key_remove.key_hdr, key_hdr,
 744                        sizeof(struct iwm_umac_key_hdr));
 745
 746                 ret =  iwm_send_wifi_if_cmd(iwm, &key_remove,
 747                                             sizeof(struct iwm_umac_key_remove),
 748                                             1);
 749                 if (ret)
 750                         return ret;
 751
 752                 iwm->keys[key_idx].key_len = 0;
 753         }
 754
 755         return ret;
 756 }
 757
 758
 759 int iwm_send_mlme_profile(struct iwm_priv *iwm)
 760 {
 761         int ret;
 762         struct iwm_umac_profile profile;
 763
 764         memcpy(&profile, iwm->umac_profile, sizeof(profile));
 765
 766         profile.hdr.oid = UMAC_WIFI_IF_CMD_SET_PROFILE;
 767         profile.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_profile) -
 768                                            sizeof(struct iwm_umac_wifi_if));
 769
 770         ret = iwm_send_wifi_if_cmd(iwm, &profile, sizeof(profile), 1);
 771         if (ret) {
 772                 IWM_ERR(iwm, "Send profile command failed\n");
 773                 return ret;
 774         }
 775
 776         set_bit(IWM_STATUS_SME_CONNECTING, &iwm->status);
 777         return 0;
 778 }
 779
 780 int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
 781 {
 782         struct iwm_umac_invalidate_profile invalid;
 783         int ret;
 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)
 794                 return ret;
 795
 796         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 797                                 (iwm->umac_profile_active == 0), 5 * HZ);
 798
 799         return ret ? 0 : -EBUSY;
 800 }
 801
 802 int iwm_tx_power_trigger(struct iwm_priv *iwm)
 803 {
 804         struct iwm_umac_pwr_trigger pwr_trigger;
 805
 806         pwr_trigger.hdr.oid = UMAC_WIFI_IF_CMD_TX_PWR_TRIGGER;
 807         pwr_trigger.hdr.buf_size =
 808                 cpu_to_le16(sizeof(struct iwm_umac_pwr_trigger) -
 809                             sizeof(struct iwm_umac_wifi_if));
 810
 811
 812         return iwm_send_wifi_if_cmd(iwm, &pwr_trigger, sizeof(pwr_trigger), 1);
 813 }
 814
 815 int iwm_send_umac_stats_req(struct iwm_priv *iwm, u32 flags)
 816 {
 817         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 818         struct iwm_umac_cmd umac_cmd;
 819         struct iwm_umac_cmd_stats_req stats_req;
 820
 821         stats_req.flags = cpu_to_le32(flags);
 822
 823         umac_cmd.id = UMAC_CMD_OPCODE_STATISTIC_REQUEST;
 824         umac_cmd.resp = 0;
 825
 826         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stats_req,
 827                                      sizeof(struct iwm_umac_cmd_stats_req));
 828 }
 829
 830 int iwm_send_umac_channel_list(struct iwm_priv *iwm)
 831 {
 832         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 833         struct iwm_umac_cmd umac_cmd;
 834         struct iwm_umac_cmd_get_channel_list *ch_list;
 835         int size = sizeof(struct iwm_umac_cmd_get_channel_list) +
 836                    sizeof(struct iwm_umac_channel_info) * 4;
 837         int ret;
 838
 839         ch_list = kzalloc(size, GFP_KERNEL);
 840         if (!ch_list) {
 841                 IWM_ERR(iwm, "Couldn't allocate channel list cmd\n");
 842                 return -ENOMEM;
 843         }
 844
 845         ch_list->ch[0].band = UMAC_BAND_2GHZ;
 846         ch_list->ch[0].type = UMAC_CHANNEL_WIDTH_20MHZ;
 847         ch_list->ch[0].flags = UMAC_CHANNEL_FLAG_VALID;
 848
 849         ch_list->ch[1].band = UMAC_BAND_5GHZ;
 850         ch_list->ch[1].type = UMAC_CHANNEL_WIDTH_20MHZ;
 851         ch_list->ch[1].flags = UMAC_CHANNEL_FLAG_VALID;
 852
 853         ch_list->ch[2].band = UMAC_BAND_2GHZ;
 854         ch_list->ch[2].type = UMAC_CHANNEL_WIDTH_20MHZ;
 855         ch_list->ch[2].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 856
 857         ch_list->ch[3].band = UMAC_BAND_5GHZ;
 858         ch_list->ch[3].type = UMAC_CHANNEL_WIDTH_20MHZ;
 859         ch_list->ch[3].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 860
 861         ch_list->count = cpu_to_le16(4);
 862
 863         umac_cmd.id = UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST;
 864         umac_cmd.resp = 1;
 865
 866         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, ch_list, size);
 867
 868         kfree(ch_list);
 869
 870         return ret;
 871 }
 872
 873 int iwm_scan_ssids(struct iwm_priv *iwm, struct cfg80211_ssid *ssids,
 874                    int ssid_num)
 875 {
 876         struct iwm_umac_cmd_scan_request req;
 877         int i, ret;
 878
 879         memset(&req, 0, sizeof(struct iwm_umac_cmd_scan_request));
 880
 881         req.hdr.oid = UMAC_WIFI_IF_CMD_SCAN_REQUEST;
 882         req.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_cmd_scan_request)
 883                                        - sizeof(struct iwm_umac_wifi_if));
 884         req.type = UMAC_WIFI_IF_SCAN_TYPE_USER;
 885         req.timeout = 2;
 886         req.seq_num = iwm->scan_id;
 887         req.ssid_num = min(ssid_num, UMAC_WIFI_IF_PROBE_OPTION_MAX);
 888
 889         for (i = 0; i < req.ssid_num; i++) {
 890                 memcpy(req.ssids[i].ssid, ssids[i].ssid, ssids[i].ssid_len);
 891                 req.ssids[i].ssid_len = ssids[i].ssid_len;
 892         }
 893
 894         ret = iwm_send_wifi_if_cmd(iwm, &req, sizeof(req), 0);
 895         if (ret) {
 896                 IWM_ERR(iwm, "Couldn't send scan request\n");
 897                 return ret;
 898         }
 899
 900         iwm->scan_id = iwm->scan_id++ % IWM_SCAN_ID_MAX;
 901
 902         return 0;
 903 }
 904
 905 int iwm_scan_one_ssid(struct iwm_priv *iwm, u8 *ssid, int ssid_len)
 906 {
 907         struct cfg80211_ssid one_ssid;
 908
 909         if (test_and_set_bit(IWM_STATUS_SCANNING, &iwm->status))
 910                 return 0;
 911
 912         one_ssid.ssid_len = min(ssid_len, IEEE80211_MAX_SSID_LEN);
 913         memcpy(&one_ssid.ssid, ssid, one_ssid.ssid_len);
 914
 915         return iwm_scan_ssids(iwm, &one_ssid, 1);
 916 }
 917
 918 int iwm_target_reset(struct iwm_priv *iwm)
 919 {
 920         struct iwm_udma_nonwifi_cmd target_cmd;
 921
 922         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_REBOOT;
 923         target_cmd.addr = 0;
 924         target_cmd.op1_sz = 0;
 925         target_cmd.op2 = 0;
 926         target_cmd.handle_by_hw = 0;
 927         target_cmd.resp = 0;
 928         target_cmd.eop = 1;
 929
 930         return iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 931 }
 932
 933 int iwm_send_umac_stop_resume_tx(struct iwm_priv *iwm,
 934                                  struct iwm_umac_notif_stop_resume_tx *ntf)
 935 {
 936         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 937         struct iwm_umac_cmd umac_cmd;
 938         struct iwm_umac_cmd_stop_resume_tx stp_res_cmd;
 939         struct iwm_sta_info *sta_info;
 940         u8 sta_id = STA_ID_N_COLOR_ID(ntf->sta_id);
 941         int i;
 942
 943         sta_info = &iwm->sta_table[sta_id];
 944         if (!sta_info->valid) {
 945                 IWM_ERR(iwm, "Invalid STA: %d\n", sta_id);
 946                 return -EINVAL;
 947         }
 948
 949         umac_cmd.id = UMAC_CMD_OPCODE_STOP_RESUME_STA_TX;
 950         umac_cmd.resp = 0;
 951
 952         stp_res_cmd.flags = ntf->flags;
 953         stp_res_cmd.sta_id = ntf->sta_id;
 954         stp_res_cmd.stop_resume_tid_msk = ntf->stop_resume_tid_msk;
 955         for (i = 0; i < IWM_UMAC_TID_NR; i++)
 956                 stp_res_cmd.last_seq_num[i] =
 957                         sta_info->tid_info[i].last_seq_num;
 958
 959         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stp_res_cmd,
 960                                  sizeof(struct iwm_umac_cmd_stop_resume_tx));
 961
 962 }
 963
 964 int iwm_send_pmkid_update(struct iwm_priv *iwm,
 965                           struct cfg80211_pmksa *pmksa, u32 command)
 966 {
 967         struct iwm_umac_pmkid_update update;
 968         int ret;
 969
 970         memset(&update, 0, sizeof(struct iwm_umac_pmkid_update));
 971
 972         update.command = cpu_to_le32(command);
 973         memcpy(&update.bssid, pmksa->bssid, ETH_ALEN);
 974         memcpy(&update.pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
 975
 976         ret = iwm_send_wifi_if_cmd(iwm, &update,
 977                                    sizeof(struct iwm_umac_pmkid_update), 0);
 978         if (ret) {
 979                 IWM_ERR(iwm, "PMKID update command failed\n");
 980                 return ret;
 981         }
 982
 983         return 0;
 984 }