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 #include <linux/slab.h>
  45
  46 #include "iwm.h"
  47 #include "bus.h"
  48 #include "hal.h"
  49 #include "umac.h"
  50 #include "commands.h"
  51 #include "debug.h"
  52
  53 static int iwm_send_lmac_ptrough_cmd(struct iwm_priv *iwm,
  54                                      u8 lmac_cmd_id,
  55                                      const void *lmac_payload,
  56                                      u16 lmac_payload_size,
  57                                      u8 resp)
  58 {
  59         struct iwm_udma_wifi_cmd udma_cmd = UDMA_LMAC_INIT;
  60         struct iwm_umac_cmd umac_cmd;
  61         struct iwm_lmac_cmd lmac_cmd;
  62
  63         lmac_cmd.id = lmac_cmd_id;
  64
  65         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_PASS_THROUGH;
  66         umac_cmd.resp = resp;
  67
  68         return iwm_hal_send_host_cmd(iwm, &udma_cmd, &umac_cmd, &lmac_cmd,
  69                                      lmac_payload, lmac_payload_size);
  70 }
  71
  72 int iwm_send_wifi_if_cmd(struct iwm_priv *iwm, void *payload, u16 payload_size,
  73                          bool resp)
  74 {
  75         struct iwm_umac_wifi_if *hdr = (struct iwm_umac_wifi_if *)payload;
  76         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
  77         struct iwm_umac_cmd umac_cmd;
  78         int ret;
  79         u8 oid = hdr->oid;
  80
  81         if (!test_bit(IWM_STATUS_READY, &iwm->status)) {
  82                 IWM_ERR(iwm, "Interface is not ready yet");
  83                 return -EAGAIN;
  84         }
  85
  86         umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
  87         umac_cmd.resp = resp;
  88
  89         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
  90                                     payload, payload_size);
  91
  92         if (resp) {
  93                 ret = wait_event_interruptible_timeout(iwm->wifi_ntfy_queue,
  94                                    test_and_clear_bit(oid, &iwm->wifi_ntfy[0]),
  95                                    3 * HZ);
  96
  97                 return ret ? 0 : -EBUSY;
  98         }
  99
 100         return ret;
 101 }
 102
 103 static int modparam_wiwi = COEX_MODE_CM;
 104 module_param_named(wiwi, modparam_wiwi, int, 0644);
 105 MODULE_PARM_DESC(wiwi, "Wifi-WiMAX coexistence: 1=SA, 2=XOR, 3=CM (default)");
 106
 107 static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
 108 {
 109         {4, 3, 0, COEX_UNASSOC_IDLE_FLAGS},
 110         {4, 3, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 111         {4, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 112         {4, 3, 0, COEX_CALIBRATION_FLAGS},
 113         {4, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 114         {4, 3, 0, COEX_CONNECTION_ESTAB_FLAGS},
 115         {4, 3, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 116         {4, 3, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 117         {4, 3, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 118         {4, 3, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 119         {6, 3, 0, COEX_XOR_RF_ON_FLAGS},
 120         {4, 3, 0, COEX_RF_OFF_FLAGS},
 121         {6, 6, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 122         {4, 3, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 123         {4, 3, 0, COEX_RSRVD1_FLAGS},
 124         {4, 3, 0, COEX_RSRVD2_FLAGS}
 125 };
 126
 127 static struct coex_event iwm_sta_cm_prio_tbl[COEX_EVENTS_NUM] =
 128 {
 129         {1, 1, 0, COEX_UNASSOC_IDLE_FLAGS},
 130         {4, 4, 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
 131         {3, 3, 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
 132         {6, 6, 0, COEX_CALIBRATION_FLAGS},
 133         {3, 3, 0, COEX_PERIODIC_CALIBRATION_FLAGS},
 134         {6, 5, 0, COEX_CONNECTION_ESTAB_FLAGS},
 135         {4, 4, 0, COEX_ASSOCIATED_IDLE_FLAGS},
 136         {4, 4, 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
 137         {4, 4, 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
 138         {4, 4, 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
 139         {1, 1, 0, COEX_RF_ON_FLAGS},
 140         {1, 1, 0, COEX_RF_OFF_FLAGS},
 141         {7, 7, 0, COEX_STAND_ALONE_DEBUG_FLAGS},
 142         {5, 4, 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
 143         {1, 1, 0, COEX_RSRVD1_FLAGS},
 144         {1, 1, 0, COEX_RSRVD2_FLAGS}
 145 };
 146
 147 int iwm_send_prio_table(struct iwm_priv *iwm)
 148 {
 149         struct iwm_coex_prio_table_cmd coex_table_cmd;
 150         u32 coex_enabled, mode_enabled;
 151
 152         memset(&coex_table_cmd, 0, sizeof(struct iwm_coex_prio_table_cmd));
 153
 154         coex_table_cmd.flags = COEX_FLAGS_STA_TABLE_VALID_MSK;
 155
 156         switch (modparam_wiwi) {
 157         case COEX_MODE_XOR:
 158         case COEX_MODE_CM:
 159                 coex_enabled = 1;
 160                 break;
 161         default:
 162                 coex_enabled = 0;
 163                 break;
 164         }
 165
 166         switch (iwm->conf.mode) {
 167         case UMAC_MODE_BSS:
 168         case UMAC_MODE_IBSS:
 169                 mode_enabled = 1;
 170                 break;
 171         default:
 172                 mode_enabled = 0;
 173                 break;
 174         }
 175
 176         if (coex_enabled && mode_enabled) {
 177                 coex_table_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK |
 178                                         COEX_FLAGS_ASSOC_WAKEUP_UMASK_MSK |
 179                                         COEX_FLAGS_UNASSOC_WAKEUP_UMASK_MSK;
 180
 181                 switch (modparam_wiwi) {
 182                 case COEX_MODE_XOR:
 183                         memcpy(coex_table_cmd.sta_prio, iwm_sta_xor_prio_tbl,
 184                                sizeof(iwm_sta_xor_prio_tbl));
 185                         break;
 186                 case COEX_MODE_CM:
 187                         memcpy(coex_table_cmd.sta_prio, iwm_sta_cm_prio_tbl,
 188                                sizeof(iwm_sta_cm_prio_tbl));
 189                         break;
 190                 default:
 191                         IWM_ERR(iwm, "Invalid coex_mode 0x%x\n",
 192                                 modparam_wiwi);
 193                         break;
 194                 }
 195         } else
 196                 IWM_WARN(iwm, "coexistense disabled\n");
 197
 198         return iwm_send_lmac_ptrough_cmd(iwm, COEX_PRIORITY_TABLE_CMD,
 199                                 &coex_table_cmd,
 200                                 sizeof(struct iwm_coex_prio_table_cmd), 0);
 201 }
 202
 203 int iwm_send_init_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 204 {
 205         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 206
 207         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 208
 209         cal_cfg_cmd.ucode_cfg.init.enable = cpu_to_le32(calib_requested);
 210         cal_cfg_cmd.ucode_cfg.init.start = cpu_to_le32(calib_requested);
 211         cal_cfg_cmd.ucode_cfg.init.send_res = cpu_to_le32(calib_requested);
 212         cal_cfg_cmd.ucode_cfg.flags =
 213                 cpu_to_le32(CALIB_CFG_FLAG_SEND_COMPLETE_NTFY_AFTER_MSK);
 214
 215         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 216                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 1);
 217 }
 218
 219 int iwm_send_periodic_calib_cfg(struct iwm_priv *iwm, u8 calib_requested)
 220 {
 221         struct iwm_lmac_cal_cfg_cmd cal_cfg_cmd;
 222
 223         memset(&cal_cfg_cmd, 0, sizeof(struct iwm_lmac_cal_cfg_cmd));
 224
 225         cal_cfg_cmd.ucode_cfg.periodic.enable = cpu_to_le32(calib_requested);
 226         cal_cfg_cmd.ucode_cfg.periodic.start = cpu_to_le32(calib_requested);
 227
 228         return iwm_send_lmac_ptrough_cmd(iwm, CALIBRATION_CFG_CMD, &cal_cfg_cmd,
 229                                 sizeof(struct iwm_lmac_cal_cfg_cmd), 0);
 230 }
 231
 232 int iwm_store_rxiq_calib_result(struct iwm_priv *iwm)
 233 {
 234         struct iwm_calib_rxiq *rxiq;
 235         u8 *eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 236         int grplen = sizeof(struct iwm_calib_rxiq_group);
 237
 238         rxiq = kzalloc(sizeof(struct iwm_calib_rxiq), GFP_KERNEL);
 239         if (!rxiq) {
 240                 IWM_ERR(iwm, "Couldn't alloc memory for RX IQ\n");
 241                 return -ENOMEM;
 242         }
 243
 244         eeprom_rxiq = iwm_eeprom_access(iwm, IWM_EEPROM_CALIB_RXIQ);
 245         if (IS_ERR(eeprom_rxiq)) {
 246                 IWM_ERR(iwm, "Couldn't access EEPROM RX IQ entry\n");
 247                 kfree(rxiq);
 248                 return PTR_ERR(eeprom_rxiq);
 249         }
 250
 251         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].buf = (u8 *)rxiq;
 252         iwm->calib_res[SHILOH_PHY_CALIBRATE_RX_IQ_CMD].size = sizeof(*rxiq);
 253
 254         rxiq->hdr.opcode = SHILOH_PHY_CALIBRATE_RX_IQ_CMD;
 255         rxiq->hdr.first_grp = 0;
 256         rxiq->hdr.grp_num = 1;
 257         rxiq->hdr.all_data_valid = 1;
 258
 259         memcpy(&rxiq->group[0], eeprom_rxiq, 4 * grplen);
 260         memcpy(&rxiq->group[4], eeprom_rxiq + 6 * grplen, grplen);
 261
 262         return 0;
 263 }
 264
 265 int iwm_send_calib_results(struct iwm_priv *iwm)
 266 {
 267         int i, ret = 0;
 268
 269         for (i = PHY_CALIBRATE_OPCODES_NUM; i < CALIBRATION_CMD_NUM; i++) {
 270                 if (test_bit(i - PHY_CALIBRATE_OPCODES_NUM,
 271                              &iwm->calib_done_map)) {
 272                         IWM_DBG_CMD(iwm, DBG,
 273                                     "Send calibration %d result\n", i);
 274                         ret |= iwm_send_lmac_ptrough_cmd(iwm,
 275                                         REPLY_PHY_CALIBRATION_CMD,
 276                                         iwm->calib_res[i].buf,
 277                                         iwm->calib_res[i].size, 0);
 278
 279                         kfree(iwm->calib_res[i].buf);
 280                         iwm->calib_res[i].buf = NULL;
 281                         iwm->calib_res[i].size = 0;
 282                 }
 283         }
 284
 285         return ret;
 286 }
 287
 288 int iwm_send_ct_kill_cfg(struct iwm_priv *iwm, u8 entry, u8 exit)
 289 {
 290         struct iwm_ct_kill_cfg_cmd cmd;
 291
 292         cmd.entry_threshold = entry;
 293         cmd.exit_threshold = exit;
 294
 295         return iwm_send_lmac_ptrough_cmd(iwm, REPLY_CT_KILL_CONFIG_CMD, &cmd,
 296                                          sizeof(struct iwm_ct_kill_cfg_cmd), 0);
 297 }
 298
 299 int iwm_send_umac_reset(struct iwm_priv *iwm, __le32 reset_flags, bool resp)
 300 {
 301         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 302         struct iwm_umac_cmd umac_cmd;
 303         struct iwm_umac_cmd_reset reset;
 304
 305         reset.flags = reset_flags;
 306
 307         umac_cmd.id = UMAC_CMD_OPCODE_RESET;
 308         umac_cmd.resp = resp;
 309
 310         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &reset,
 311                                      sizeof(struct iwm_umac_cmd_reset));
 312 }
 313
 314 int iwm_umac_set_config_fix(struct iwm_priv *iwm, u16 tbl, u16 key, u32 value)
 315 {
 316         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 317         struct iwm_umac_cmd umac_cmd;
 318         struct iwm_umac_cmd_set_param_fix param;
 319
 320         if ((tbl != UMAC_PARAM_TBL_CFG_FIX) &&
 321             (tbl != UMAC_PARAM_TBL_FA_CFG_FIX))
 322                 return -EINVAL;
 323
 324         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_FIX;
 325         umac_cmd.resp = 0;
 326
 327         param.tbl = cpu_to_le16(tbl);
 328         param.key = cpu_to_le16(key);
 329         param.value = cpu_to_le32(value);
 330
 331         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &param,
 332                                      sizeof(struct iwm_umac_cmd_set_param_fix));
 333 }
 334
 335 int iwm_umac_set_config_var(struct iwm_priv *iwm, u16 key,
 336                             void *payload, u16 payload_size)
 337 {
 338         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 339         struct iwm_umac_cmd umac_cmd;
 340         struct iwm_umac_cmd_set_param_var *param_hdr;
 341         u8 *param;
 342         int ret;
 343
 344         param = kzalloc(payload_size +
 345                         sizeof(struct iwm_umac_cmd_set_param_var), GFP_KERNEL);
 346         if (!param) {
 347                 IWM_ERR(iwm, "Couldn't allocate param\n");
 348                 return -ENOMEM;
 349         }
 350
 351         param_hdr = (struct iwm_umac_cmd_set_param_var *)param;
 352
 353         umac_cmd.id = UMAC_CMD_OPCODE_SET_PARAM_VAR;
 354         umac_cmd.resp = 0;
 355
 356         param_hdr->tbl = cpu_to_le16(UMAC_PARAM_TBL_CFG_VAR);
 357         param_hdr->key = cpu_to_le16(key);
 358         param_hdr->len = cpu_to_le16(payload_size);
 359         memcpy(param + sizeof(struct iwm_umac_cmd_set_param_var),
 360                payload, payload_size);
 361
 362         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, param,
 363                                     sizeof(struct iwm_umac_cmd_set_param_var) +
 364                                     payload_size);
 365         kfree(param);
 366
 367         return ret;
 368 }
 369
 370 int iwm_send_umac_config(struct iwm_priv *iwm, __le32 reset_flags)
 371 {
 372         int ret;
 373
 374         /* Use UMAC default values */
 375         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 376                                       CFG_POWER_INDEX, iwm->conf.power_index);
 377         if (ret < 0)
 378                 return ret;
 379
 380         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_FA_CFG_FIX,
 381                                       CFG_FRAG_THRESHOLD,
 382                                       iwm->conf.frag_threshold);
 383         if (ret < 0)
 384                 return ret;
 385
 386         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 387                                       CFG_RTS_THRESHOLD,
 388                                       iwm->conf.rts_threshold);
 389         if (ret < 0)
 390                 return ret;
 391
 392         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 393                                       CFG_CTS_TO_SELF, iwm->conf.cts_to_self);
 394         if (ret < 0)
 395                 return ret;
 396
 397         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 398                                       CFG_WIRELESS_MODE,
 399                                       iwm->conf.wireless_mode);
 400         if (ret < 0)
 401                 return ret;
 402
 403         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 404                                       CFG_COEX_MODE, modparam_wiwi);
 405         if (ret < 0)
 406                 return ret;
 407
 408         /*
 409         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 410                                       CFG_ASSOCIATION_TIMEOUT,
 411                                       iwm->conf.assoc_timeout);
 412         if (ret < 0)
 413                 return ret;
 414
 415         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 416                                       CFG_ROAM_TIMEOUT,
 417                                       iwm->conf.roam_timeout);
 418         if (ret < 0)
 419                 return ret;
 420
 421         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 422                                       CFG_WIRELESS_MODE,
 423                                       WIRELESS_MODE_11A | WIRELESS_MODE_11G);
 424         if (ret < 0)
 425                 return ret;
 426         */
 427
 428         ret = iwm_umac_set_config_var(iwm, CFG_NET_ADDR,
 429                                       iwm_to_ndev(iwm)->dev_addr, ETH_ALEN);
 430         if (ret < 0)
 431                 return ret;
 432
 433         /* UMAC PM static configurations */
 434         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 435                                       CFG_PM_LEGACY_RX_TIMEOUT, 0x12C);
 436         if (ret < 0)
 437                 return ret;
 438
 439         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 440                                       CFG_PM_LEGACY_TX_TIMEOUT, 0x15E);
 441         if (ret < 0)
 442                 return ret;
 443
 444         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 445                                       CFG_PM_CTRL_FLAGS, 0x1);
 446         if (ret < 0)
 447                 return ret;
 448
 449         ret = iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 450                                       CFG_PM_KEEP_ALIVE_IN_BEACONS, 0x80);
 451         if (ret < 0)
 452                 return ret;
 453
 454         /* reset UMAC */
 455         ret = iwm_send_umac_reset(iwm, reset_flags, 1);
 456         if (ret < 0)
 457                 return ret;
 458
 459         ret = iwm_notif_handle(iwm, UMAC_CMD_OPCODE_RESET, IWM_SRC_UMAC,
 460                                WAIT_NOTIF_TIMEOUT);
 461         if (ret) {
 462                 IWM_ERR(iwm, "Wait for UMAC RESET timeout\n");
 463                 return ret;
 464         }
 465
 466         return ret;
 467 }
 468
 469 int iwm_send_packet(struct iwm_priv *iwm, struct sk_buff *skb, int pool_id)
 470 {
 471         struct iwm_udma_wifi_cmd udma_cmd;
 472         struct iwm_umac_cmd umac_cmd;
 473         struct iwm_tx_info *tx_info = skb_to_tx_info(skb);
 474
 475         udma_cmd.eop = 1; /* always set eop for non-concatenated Tx */
 476         udma_cmd.credit_group = pool_id;
 477         udma_cmd.ra_tid = tx_info->sta << 4 | tx_info->tid;
 478         udma_cmd.lmac_offset = 0;
 479
 480         umac_cmd.id = REPLY_TX;
 481         umac_cmd.color = tx_info->color;
 482         umac_cmd.resp = 0;
 483
 484         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
 485                                      skb->data, skb->len);
 486 }
 487
 488 static int iwm_target_read(struct iwm_priv *iwm, __le32 address,
 489                            u8 *response, u32 resp_size)
 490 {
 491         struct iwm_udma_nonwifi_cmd target_cmd;
 492         struct iwm_nonwifi_cmd *cmd;
 493         u16 seq_num;
 494         int ret = 0;
 495
 496         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_READ;
 497         target_cmd.addr = address;
 498         target_cmd.op1_sz = cpu_to_le32(resp_size);
 499         target_cmd.op2 = 0;
 500         target_cmd.handle_by_hw = 0;
 501         target_cmd.resp = 1;
 502         target_cmd.eop = 1;
 503
 504         ret = iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 505         if (ret < 0) {
 506                 IWM_ERR(iwm, "Couldn't send READ command\n");
 507                 return ret;
 508         }
 509
 510         /* When succeding, the send_target routine returns the seq number */
 511         seq_num = ret;
 512
 513         ret = wait_event_interruptible_timeout(iwm->nonwifi_queue,
 514                 (cmd = iwm_get_pending_nonwifi_cmd(iwm, seq_num,
 515                                           UMAC_HDI_OUT_OPCODE_READ)) != NULL,
 516                                                2 * HZ);
 517
 518         if (!ret) {
 519                 IWM_ERR(iwm, "Didn't receive a target READ answer\n");
 520                 return ret;
 521         }
 522
 523         memcpy(response, cmd->buf.hdr + sizeof(struct iwm_udma_in_hdr),
 524                resp_size);
 525
 526         kfree(cmd);
 527
 528         return 0;
 529 }
 530
 531 int iwm_read_mac(struct iwm_priv *iwm, u8 *mac)
 532 {
 533         int ret;
 534         u8 mac_align[ALIGN(ETH_ALEN, 8)];
 535
 536         ret = iwm_target_read(iwm, cpu_to_le32(WICO_MAC_ADDRESS_ADDR),
 537                               mac_align, sizeof(mac_align));
 538         if (ret)
 539                 return ret;
 540
 541         if (is_valid_ether_addr(mac_align))
 542                 memcpy(mac, mac_align, ETH_ALEN);
 543         else {
 544                 IWM_ERR(iwm, "Invalid EEPROM MAC\n");
 545                 memcpy(mac, iwm->conf.mac_addr, ETH_ALEN);
 546                 get_random_bytes(&mac[3], 3);
 547         }
 548
 549         return 0;
 550 }
 551
 552 static int iwm_check_profile(struct iwm_priv *iwm)
 553 {
 554         if (!iwm->umac_profile_active)
 555                 return -EAGAIN;
 556
 557         if (iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 558             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 559             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 560             iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 561                 IWM_ERR(iwm, "Wrong unicast cipher: 0x%x\n",
 562                         iwm->umac_profile->sec.ucast_cipher);
 563                 return -EAGAIN;
 564         }
 565
 566         if (iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 567             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_WEP_104 &&
 568             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_TKIP &&
 569             iwm->umac_profile->sec.mcast_cipher != UMAC_CIPHER_TYPE_CCMP) {
 570                 IWM_ERR(iwm, "Wrong multicast cipher: 0x%x\n",
 571                         iwm->umac_profile->sec.mcast_cipher);
 572                 return -EAGAIN;
 573         }
 574
 575         if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 ||
 576              iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) &&
 577             (iwm->umac_profile->sec.ucast_cipher !=
 578              iwm->umac_profile->sec.mcast_cipher)) {
 579                 IWM_ERR(iwm, "Unicast and multicast ciphers differ for WEP\n");
 580         }
 581
 582         return 0;
 583 }
 584
 585 int iwm_set_tx_key(struct iwm_priv *iwm, u8 key_idx)
 586 {
 587         struct iwm_umac_tx_key_id tx_key_id;
 588         int ret;
 589
 590         ret = iwm_check_profile(iwm);
 591         if (ret < 0)
 592                 return ret;
 593
 594         /* UMAC only allows to set default key for WEP and auth type is
 595          * NOT 802.1X or RSNA. */
 596         if ((iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_40 &&
 597              iwm->umac_profile->sec.ucast_cipher != UMAC_CIPHER_TYPE_WEP_104) ||
 598             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_8021X ||
 599             iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_RSNA_PSK)
 600                 return 0;
 601
 602         tx_key_id.hdr.oid = UMAC_WIFI_IF_CMD_GLOBAL_TX_KEY_ID;
 603         tx_key_id.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_tx_key_id) -
 604                                              sizeof(struct iwm_umac_wifi_if));
 605
 606         tx_key_id.key_idx = key_idx;
 607
 608         return iwm_send_wifi_if_cmd(iwm, &tx_key_id, sizeof(tx_key_id), 1);
 609 }
 610
 611 int iwm_set_key(struct iwm_priv *iwm, bool remove, struct iwm_key *key)
 612 {
 613         int ret = 0;
 614         u8 cmd[64], *sta_addr, *key_data, key_len;
 615         s8 key_idx;
 616         u16 cmd_size = 0;
 617         struct iwm_umac_key_hdr *key_hdr = &key->hdr;
 618         struct iwm_umac_key_wep40 *wep40 = (struct iwm_umac_key_wep40 *)cmd;
 619         struct iwm_umac_key_wep104 *wep104 = (struct iwm_umac_key_wep104 *)cmd;
 620         struct iwm_umac_key_tkip *tkip = (struct iwm_umac_key_tkip *)cmd;
 621         struct iwm_umac_key_ccmp *ccmp = (struct iwm_umac_key_ccmp *)cmd;
 622
 623         if (!remove) {
 624                 ret = iwm_check_profile(iwm);
 625                 if (ret < 0)
 626                         return ret;
 627         }
 628
 629         sta_addr = key->hdr.mac;
 630         key_data = key->key;
 631         key_len = key->key_len;
 632         key_idx = key->hdr.key_idx;
 633
 634         if (!remove) {
 635                 u8 auth_type = iwm->umac_profile->sec.auth_type;
 636
 637                 IWM_DBG_WEXT(iwm, DBG, "key_idx:%d\n", key_idx);
 638                 IWM_DBG_WEXT(iwm, DBG, "key_len:%d\n", key_len);
 639                 IWM_DBG_WEXT(iwm, DBG, "MAC:%pM, idx:%d, multicast:%d\n",
 640                        key_hdr->mac, key_hdr->key_idx, key_hdr->multicast);
 641
 642                 IWM_DBG_WEXT(iwm, DBG, "profile: mcast:0x%x, ucast:0x%x\n",
 643                              iwm->umac_profile->sec.mcast_cipher,
 644                              iwm->umac_profile->sec.ucast_cipher);
 645                 IWM_DBG_WEXT(iwm, DBG, "profile: auth_type:0x%x, flags:0x%x\n",
 646                              iwm->umac_profile->sec.auth_type,
 647                              iwm->umac_profile->sec.flags);
 648
 649                 switch (key->cipher) {
 650                 case WLAN_CIPHER_SUITE_WEP40:
 651                         wep40->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP40_KEY;
 652                         wep40->hdr.buf_size =
 653                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep40) -
 654                                             sizeof(struct iwm_umac_wifi_if));
 655
 656                         memcpy(&wep40->key_hdr, key_hdr,
 657                                sizeof(struct iwm_umac_key_hdr));
 658                         memcpy(wep40->key, key_data, key_len);
 659                         wep40->static_key =
 660                                 !!((auth_type != UMAC_AUTH_TYPE_8021X) &&
 661                                    (auth_type != UMAC_AUTH_TYPE_RSNA_PSK));
 662
 663                         cmd_size = sizeof(struct iwm_umac_key_wep40);
 664                         break;
 665
 666                 case WLAN_CIPHER_SUITE_WEP104:
 667                         wep104->hdr.oid = UMAC_WIFI_IF_CMD_ADD_WEP104_KEY;
 668                         wep104->hdr.buf_size =
 669                                 cpu_to_le16(sizeof(struct iwm_umac_key_wep104) -
 670                                             sizeof(struct iwm_umac_wifi_if));
 671
 672                         memcpy(&wep104->key_hdr, key_hdr,
 673                                sizeof(struct iwm_umac_key_hdr));
 674                         memcpy(wep104->key, key_data, key_len);
 675                         wep104->static_key =
 676                                 !!((auth_type != UMAC_AUTH_TYPE_8021X) &&
 677                                    (auth_type != UMAC_AUTH_TYPE_RSNA_PSK));
 678
 679                         cmd_size = sizeof(struct iwm_umac_key_wep104);
 680                         break;
 681
 682                 case WLAN_CIPHER_SUITE_CCMP:
 683                         key_hdr->key_idx++;
 684                         ccmp->hdr.oid = UMAC_WIFI_IF_CMD_ADD_CCMP_KEY;
 685                         ccmp->hdr.buf_size =
 686                                 cpu_to_le16(sizeof(struct iwm_umac_key_ccmp) -
 687                                             sizeof(struct iwm_umac_wifi_if));
 688
 689                         memcpy(&ccmp->key_hdr, key_hdr,
 690                                sizeof(struct iwm_umac_key_hdr));
 691
 692                         memcpy(ccmp->key, key_data, key_len);
 693
 694                         if (key->seq_len)
 695                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 696
 697                         cmd_size = sizeof(struct iwm_umac_key_ccmp);
 698                         break;
 699
 700                 case WLAN_CIPHER_SUITE_TKIP:
 701                         key_hdr->key_idx++;
 702                         tkip->hdr.oid = UMAC_WIFI_IF_CMD_ADD_TKIP_KEY;
 703                         tkip->hdr.buf_size =
 704                                 cpu_to_le16(sizeof(struct iwm_umac_key_tkip) -
 705                                             sizeof(struct iwm_umac_wifi_if));
 706
 707                         memcpy(&tkip->key_hdr, key_hdr,
 708                                sizeof(struct iwm_umac_key_hdr));
 709
 710                         memcpy(tkip->tkip_key, key_data, IWM_TKIP_KEY_SIZE);
 711                         memcpy(tkip->mic_tx_key, key_data + IWM_TKIP_KEY_SIZE,
 712                                IWM_TKIP_MIC_SIZE);
 713                         memcpy(tkip->mic_rx_key,
 714                                key_data + IWM_TKIP_KEY_SIZE + IWM_TKIP_MIC_SIZE,
 715                                IWM_TKIP_MIC_SIZE);
 716
 717                         if (key->seq_len)
 718                                 memcpy(ccmp->iv_count, key->seq, key->seq_len);
 719
 720                         cmd_size = sizeof(struct iwm_umac_key_tkip);
 721                         break;
 722
 723                 default:
 724                         return -ENOTSUPP;
 725                 }
 726
 727                 if ((key->cipher == WLAN_CIPHER_SUITE_TKIP) ||
 728                     (key->cipher == WLAN_CIPHER_SUITE_CCMP))
 729                         /*
 730                          * UGLY_UGLY_UGLY
 731                          * Copied HACK from the MWG driver.
 732                          * Without it, the key is set before the second
 733                          * EAPOL frame is sent, and the latter is thus
 734                          * encrypted.
 735                          */
 736                         schedule_timeout_interruptible(usecs_to_jiffies(300));
 737
 738                 ret =  iwm_send_wifi_if_cmd(iwm, cmd, cmd_size, 1);
 739         } else {
 740                 struct iwm_umac_key_remove key_remove;
 741
 742                 IWM_DBG_WEXT(iwm, ERR, "Removing key_idx:%d\n", key_idx);
 743
 744                 key_remove.hdr.oid = UMAC_WIFI_IF_CMD_REMOVE_KEY;
 745                 key_remove.hdr.buf_size =
 746                         cpu_to_le16(sizeof(struct iwm_umac_key_remove) -
 747                                     sizeof(struct iwm_umac_wifi_if));
 748                 memcpy(&key_remove.key_hdr, key_hdr,
 749                        sizeof(struct iwm_umac_key_hdr));
 750
 751                 ret =  iwm_send_wifi_if_cmd(iwm, &key_remove,
 752                                             sizeof(struct iwm_umac_key_remove),
 753                                             1);
 754                 if (ret)
 755                         return ret;
 756
 757                 iwm->keys[key_idx].key_len = 0;
 758         }
 759
 760         return ret;
 761 }
 762
 763
 764 int iwm_send_mlme_profile(struct iwm_priv *iwm)
 765 {
 766         int ret;
 767         struct iwm_umac_profile profile;
 768
 769         memcpy(&profile, iwm->umac_profile, sizeof(profile));
 770
 771         profile.hdr.oid = UMAC_WIFI_IF_CMD_SET_PROFILE;
 772         profile.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_profile) -
 773                                            sizeof(struct iwm_umac_wifi_if));
 774
 775         ret = iwm_send_wifi_if_cmd(iwm, &profile, sizeof(profile), 1);
 776         if (ret) {
 777                 IWM_ERR(iwm, "Send profile command failed\n");
 778                 return ret;
 779         }
 780
 781         set_bit(IWM_STATUS_SME_CONNECTING, &iwm->status);
 782         return 0;
 783 }
 784
 785 int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
 786 {
 787         struct iwm_umac_invalidate_profile invalid;
 788         int ret;
 789
 790         invalid.hdr.oid = UMAC_WIFI_IF_CMD_INVALIDATE_PROFILE;
 791         invalid.hdr.buf_size =
 792                 cpu_to_le16(sizeof(struct iwm_umac_invalidate_profile) -
 793                             sizeof(struct iwm_umac_wifi_if));
 794
 795         invalid.reason = WLAN_REASON_UNSPECIFIED;
 796
 797         ret = iwm_send_wifi_if_cmd(iwm, &invalid, sizeof(invalid), 1);
 798         if (ret)
 799                 return ret;
 800
 801         ret = wait_event_interruptible_timeout(iwm->mlme_queue,
 802                                 (iwm->umac_profile_active == 0), 5 * HZ);
 803
 804         return ret ? 0 : -EBUSY;
 805 }
 806
 807 int iwm_tx_power_trigger(struct iwm_priv *iwm)
 808 {
 809         struct iwm_umac_pwr_trigger pwr_trigger;
 810
 811         pwr_trigger.hdr.oid = UMAC_WIFI_IF_CMD_TX_PWR_TRIGGER;
 812         pwr_trigger.hdr.buf_size =
 813                 cpu_to_le16(sizeof(struct iwm_umac_pwr_trigger) -
 814                             sizeof(struct iwm_umac_wifi_if));
 815
 816
 817         return iwm_send_wifi_if_cmd(iwm, &pwr_trigger, sizeof(pwr_trigger), 1);
 818 }
 819
 820 int iwm_send_umac_stats_req(struct iwm_priv *iwm, u32 flags)
 821 {
 822         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 823         struct iwm_umac_cmd umac_cmd;
 824         struct iwm_umac_cmd_stats_req stats_req;
 825
 826         stats_req.flags = cpu_to_le32(flags);
 827
 828         umac_cmd.id = UMAC_CMD_OPCODE_STATISTIC_REQUEST;
 829         umac_cmd.resp = 0;
 830
 831         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stats_req,
 832                                      sizeof(struct iwm_umac_cmd_stats_req));
 833 }
 834
 835 int iwm_send_umac_channel_list(struct iwm_priv *iwm)
 836 {
 837         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 838         struct iwm_umac_cmd umac_cmd;
 839         struct iwm_umac_cmd_get_channel_list *ch_list;
 840         int size = sizeof(struct iwm_umac_cmd_get_channel_list) +
 841                    sizeof(struct iwm_umac_channel_info) * 4;
 842         int ret;
 843
 844         ch_list = kzalloc(size, GFP_KERNEL);
 845         if (!ch_list) {
 846                 IWM_ERR(iwm, "Couldn't allocate channel list cmd\n");
 847                 return -ENOMEM;
 848         }
 849
 850         ch_list->ch[0].band = UMAC_BAND_2GHZ;
 851         ch_list->ch[0].type = UMAC_CHANNEL_WIDTH_20MHZ;
 852         ch_list->ch[0].flags = UMAC_CHANNEL_FLAG_VALID;
 853
 854         ch_list->ch[1].band = UMAC_BAND_5GHZ;
 855         ch_list->ch[1].type = UMAC_CHANNEL_WIDTH_20MHZ;
 856         ch_list->ch[1].flags = UMAC_CHANNEL_FLAG_VALID;
 857
 858         ch_list->ch[2].band = UMAC_BAND_2GHZ;
 859         ch_list->ch[2].type = UMAC_CHANNEL_WIDTH_20MHZ;
 860         ch_list->ch[2].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 861
 862         ch_list->ch[3].band = UMAC_BAND_5GHZ;
 863         ch_list->ch[3].type = UMAC_CHANNEL_WIDTH_20MHZ;
 864         ch_list->ch[3].flags = UMAC_CHANNEL_FLAG_VALID | UMAC_CHANNEL_FLAG_IBSS;
 865
 866         ch_list->count = cpu_to_le16(4);
 867
 868         umac_cmd.id = UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST;
 869         umac_cmd.resp = 1;
 870
 871         ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, ch_list, size);
 872
 873         kfree(ch_list);
 874
 875         return ret;
 876 }
 877
 878 int iwm_scan_ssids(struct iwm_priv *iwm, struct cfg80211_ssid *ssids,
 879                    int ssid_num)
 880 {
 881         struct iwm_umac_cmd_scan_request req;
 882         int i, ret;
 883
 884         memset(&req, 0, sizeof(struct iwm_umac_cmd_scan_request));
 885
 886         req.hdr.oid = UMAC_WIFI_IF_CMD_SCAN_REQUEST;
 887         req.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_cmd_scan_request)
 888                                        - sizeof(struct iwm_umac_wifi_if));
 889         req.type = UMAC_WIFI_IF_SCAN_TYPE_USER;
 890         req.timeout = 2;
 891         req.seq_num = iwm->scan_id;
 892         req.ssid_num = min(ssid_num, UMAC_WIFI_IF_PROBE_OPTION_MAX);
 893
 894         for (i = 0; i < req.ssid_num; i++) {
 895                 memcpy(req.ssids[i].ssid, ssids[i].ssid, ssids[i].ssid_len);
 896                 req.ssids[i].ssid_len = ssids[i].ssid_len;
 897         }
 898
 899         ret = iwm_send_wifi_if_cmd(iwm, &req, sizeof(req), 0);
 900         if (ret) {
 901                 IWM_ERR(iwm, "Couldn't send scan request\n");
 902                 return ret;
 903         }
 904
 905         iwm->scan_id = iwm->scan_id++ % IWM_SCAN_ID_MAX;
 906
 907         return 0;
 908 }
 909
 910 int iwm_scan_one_ssid(struct iwm_priv *iwm, u8 *ssid, int ssid_len)
 911 {
 912         struct cfg80211_ssid one_ssid;
 913
 914         if (test_and_set_bit(IWM_STATUS_SCANNING, &iwm->status))
 915                 return 0;
 916
 917         one_ssid.ssid_len = min(ssid_len, IEEE80211_MAX_SSID_LEN);
 918         memcpy(&one_ssid.ssid, ssid, one_ssid.ssid_len);
 919
 920         return iwm_scan_ssids(iwm, &one_ssid, 1);
 921 }
 922
 923 int iwm_target_reset(struct iwm_priv *iwm)
 924 {
 925         struct iwm_udma_nonwifi_cmd target_cmd;
 926
 927         target_cmd.opcode = UMAC_HDI_OUT_OPCODE_REBOOT;
 928         target_cmd.addr = 0;
 929         target_cmd.op1_sz = 0;
 930         target_cmd.op2 = 0;
 931         target_cmd.handle_by_hw = 0;
 932         target_cmd.resp = 0;
 933         target_cmd.eop = 1;
 934
 935         return iwm_hal_send_target_cmd(iwm, &target_cmd, NULL);
 936 }
 937
 938 int iwm_send_umac_stop_resume_tx(struct iwm_priv *iwm,
 939                                  struct iwm_umac_notif_stop_resume_tx *ntf)
 940 {
 941         struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
 942         struct iwm_umac_cmd umac_cmd;
 943         struct iwm_umac_cmd_stop_resume_tx stp_res_cmd;
 944         struct iwm_sta_info *sta_info;
 945         u8 sta_id = STA_ID_N_COLOR_ID(ntf->sta_id);
 946         int i;
 947
 948         sta_info = &iwm->sta_table[sta_id];
 949         if (!sta_info->valid) {
 950                 IWM_ERR(iwm, "Invalid STA: %d\n", sta_id);
 951                 return -EINVAL;
 952         }
 953
 954         umac_cmd.id = UMAC_CMD_OPCODE_STOP_RESUME_STA_TX;
 955         umac_cmd.resp = 0;
 956
 957         stp_res_cmd.flags = ntf->flags;
 958         stp_res_cmd.sta_id = ntf->sta_id;
 959         stp_res_cmd.stop_resume_tid_msk = ntf->stop_resume_tid_msk;
 960         for (i = 0; i < IWM_UMAC_TID_NR; i++)
 961                 stp_res_cmd.last_seq_num[i] =
 962                         sta_info->tid_info[i].last_seq_num;
 963
 964         return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd, &stp_res_cmd,
 965                                  sizeof(struct iwm_umac_cmd_stop_resume_tx));
 966
 967 }
 968
 969 int iwm_send_pmkid_update(struct iwm_priv *iwm,
 970                           struct cfg80211_pmksa *pmksa, u32 command)
 971 {
 972         struct iwm_umac_pmkid_update update;
 973         int ret;
 974
 975         memset(&update, 0, sizeof(struct iwm_umac_pmkid_update));
 976
 977         update.hdr.oid = UMAC_WIFI_IF_CMD_PMKID_UPDATE;
 978         update.hdr.buf_size = cpu_to_le16(sizeof(struct iwm_umac_pmkid_update) -
 979                                           sizeof(struct iwm_umac_wifi_if));
 980
 981         update.command = cpu_to_le32(command);
 982         if (pmksa->bssid)
 983                 memcpy(&update.bssid, pmksa->bssid, ETH_ALEN);
 984         if (pmksa->pmkid)
 985                 memcpy(&update.pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
 986
 987         ret = iwm_send_wifi_if_cmd(iwm, &update,
 988                                    sizeof(struct iwm_umac_pmkid_update), 0);
 989         if (ret) {
 990                 IWM_ERR(iwm, "PMKID update command failed\n");
 991                 return ret;
 992         }
 993
 994         return 0;
 995 }