drivers/net/wireless/rtlwifi/rtl8192cu/mac.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * wlanfae <wlanfae@realtek.com>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <Larry.Finger@lwfinger.net>
  27  *
  28 ****************************************************************************/
  29
  30 #include "../wifi.h"
  31 #include "../pci.h"
  32 #include "../usb.h"
  33 #include "../ps.h"
  34 #include "../cam.h"
  35 #include "reg.h"
  36 #include "def.h"
  37 #include "phy.h"
  38 #include "rf.h"
  39 #include "dm.h"
  40 #include "mac.h"
  41 #include "trx.h"
  42
  43 #include <linux/module.h>
  44
  45 /* macro to shorten lines */
  46
  47 #define LINK_Q  ui_link_quality
  48 #define RX_EVM  rx_evm_percentage
  49 #define RX_SIGQ rx_mimo_sig_qual
  50
  51
  52 void rtl92c_read_chip_version(struct ieee80211_hw *hw)
  53 {
  54         struct rtl_priv *rtlpriv = rtl_priv(hw);
  55         struct rtl_phy *rtlphy = &(rtlpriv->phy);
  56         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
  57         enum version_8192c chip_version = VERSION_UNKNOWN;
  58         const char *versionid;
  59         u32 value32;
  60
  61         value32 = rtl_read_dword(rtlpriv, REG_SYS_CFG);
  62         if (value32 & TRP_VAUX_EN) {
  63                 chip_version = (value32 & TYPE_ID) ? VERSION_TEST_CHIP_92C :
  64                                VERSION_TEST_CHIP_88C;
  65         } else {
  66                 /* Normal mass production chip. */
  67                 chip_version = NORMAL_CHIP;
  68                 chip_version |= ((value32 & TYPE_ID) ? CHIP_92C : 0);
  69                 chip_version |= ((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : 0);
  70                 /* RTL8723 with BT function. */
  71                 chip_version |= ((value32 & BT_FUNC) ? CHIP_8723 : 0);
  72                 if (IS_VENDOR_UMC(chip_version))
  73                         chip_version |= ((value32 & CHIP_VER_RTL_MASK) ?
  74                                          CHIP_VENDOR_UMC_B_CUT : 0);
  75                 if (IS_92C_SERIAL(chip_version)) {
  76                         value32 = rtl_read_dword(rtlpriv, REG_HPON_FSM);
  77                         chip_version |= ((CHIP_BONDING_IDENTIFIER(value32) ==
  78                                  CHIP_BONDING_92C_1T2R) ? CHIP_92C_1T2R : 0);
  79                 } else if (IS_8723_SERIES(chip_version)) {
  80                         value32 = rtl_read_dword(rtlpriv, REG_GPIO_OUTSTS);
  81                         chip_version |= ((value32 & RF_RL_ID) ?
  82                                           CHIP_8723_DRV_REV : 0);
  83                 }
  84         }
  85         rtlhal->version  = (enum version_8192c)chip_version;
  86         pr_info("Chip version 0x%x\n", chip_version);
  87         switch (rtlhal->version) {
  88         case VERSION_NORMAL_TSMC_CHIP_92C_1T2R:
  89                 versionid = "NORMAL_B_CHIP_92C";
  90                 break;
  91         case VERSION_NORMAL_TSMC_CHIP_92C:
  92                 versionid = "NORMAL_TSMC_CHIP_92C";
  93                 break;
  94         case VERSION_NORMAL_TSMC_CHIP_88C:
  95                 versionid = "NORMAL_TSMC_CHIP_88C";
  96                 break;
  97         case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT:
  98                 versionid = "NORMAL_UMC_CHIP_i92C_1T2R_A_CUT";
  99                 break;
 100         case VERSION_NORMAL_UMC_CHIP_92C_A_CUT:
 101                 versionid = "NORMAL_UMC_CHIP_92C_A_CUT";
 102                 break;
 103         case VERSION_NORMAL_UMC_CHIP_88C_A_CUT:
 104                 versionid = "NORMAL_UMC_CHIP_88C_A_CUT";
 105                 break;
 106         case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT:
 107                 versionid = "NORMAL_UMC_CHIP_92C_1T2R_B_CUT";
 108                 break;
 109         case VERSION_NORMAL_UMC_CHIP_92C_B_CUT:
 110                 versionid = "NORMAL_UMC_CHIP_92C_B_CUT";
 111                 break;
 112         case VERSION_NORMAL_UMC_CHIP_88C_B_CUT:
 113                 versionid = "NORMAL_UMC_CHIP_88C_B_CUT";
 114                 break;
 115         case VERSION_NORMA_UMC_CHIP_8723_1T1R_A_CUT:
 116                 versionid = "NORMAL_UMC_CHIP_8723_1T1R_A_CUT";
 117                 break;
 118         case VERSION_NORMA_UMC_CHIP_8723_1T1R_B_CUT:
 119                 versionid = "NORMAL_UMC_CHIP_8723_1T1R_B_CUT";
 120                 break;
 121         case VERSION_TEST_CHIP_92C:
 122                 versionid = "TEST_CHIP_92C";
 123                 break;
 124         case VERSION_TEST_CHIP_88C:
 125                 versionid = "TEST_CHIP_88C";
 126                 break;
 127         default:
 128                 versionid = "UNKNOWN";
 129                 break;
 130         }
 131         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 132                  "Chip Version ID: %s\n", versionid);
 133
 134         if (IS_92C_SERIAL(rtlhal->version))
 135                 rtlphy->rf_type =
 136                          (IS_92C_1T2R(rtlhal->version)) ? RF_1T2R : RF_2T2R;
 137         else
 138                 rtlphy->rf_type = RF_1T1R;
 139         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 140                  "Chip RF Type: %s\n",
 141                  rtlphy->rf_type == RF_2T2R ? "RF_2T2R" : "RF_1T1R");
 142         if (get_rf_type(rtlphy) == RF_1T1R)
 143                 rtlpriv->dm.rfpath_rxenable[0] = true;
 144         else
 145                 rtlpriv->dm.rfpath_rxenable[0] =
 146                     rtlpriv->dm.rfpath_rxenable[1] = true;
 147         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "VersionID = 0x%4x\n",
 148                  rtlhal->version);
 149 }
 150
 151 /**
 152  * writeLLT - LLT table write access
 153  * @io: io callback
 154  * @address: LLT logical address.
 155  * @data: LLT data content
 156  *
 157  * Realtek hardware access function.
 158  *
 159  */
 160 bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data)
 161 {
 162         struct rtl_priv *rtlpriv = rtl_priv(hw);
 163         bool status = true;
 164         long count = 0;
 165         u32 value = _LLT_INIT_ADDR(address) |
 166             _LLT_INIT_DATA(data) | _LLT_OP(_LLT_WRITE_ACCESS);
 167
 168         rtl_write_dword(rtlpriv, REG_LLT_INIT, value);
 169         do {
 170                 value = rtl_read_dword(rtlpriv, REG_LLT_INIT);
 171                 if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value))
 172                         break;
 173                 if (count > POLLING_LLT_THRESHOLD) {
 174                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 175                                  "Failed to polling write LLT done at address %d! _LLT_OP_VALUE(%x)\n",
 176                                  address, _LLT_OP_VALUE(value));
 177                         status = false;
 178                         break;
 179                 }
 180         } while (++count);
 181         return status;
 182 }
 183 /**
 184  * rtl92c_init_LLT_table - Init LLT table
 185  * @io: io callback
 186  * @boundary:
 187  *
 188  * Realtek hardware access function.
 189  *
 190  */
 191 bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary)
 192 {
 193         bool rst = true;
 194         u32     i;
 195
 196         for (i = 0; i < (boundary - 1); i++) {
 197                 rst = rtl92c_llt_write(hw, i , i + 1);
 198                 if (true != rst) {
 199                         pr_err("===> %s #1 fail\n", __func__);
 200                         return rst;
 201                 }
 202         }
 203         /* end of list */
 204         rst = rtl92c_llt_write(hw, (boundary - 1), 0xFF);
 205         if (true != rst) {
 206                 pr_err("===> %s #2 fail\n", __func__);
 207                 return rst;
 208         }
 209         /* Make the other pages as ring buffer
 210          * This ring buffer is used as beacon buffer if we config this MAC
 211          *  as two MAC transfer.
 212          * Otherwise used as local loopback buffer.
 213          */
 214         for (i = boundary; i < LLT_LAST_ENTRY_OF_TX_PKT_BUFFER; i++) {
 215                 rst = rtl92c_llt_write(hw, i, (i + 1));
 216                 if (true != rst) {
 217                         pr_err("===> %s #3 fail\n", __func__);
 218                         return rst;
 219                 }
 220         }
 221         /* Let last entry point to the start entry of ring buffer */
 222         rst = rtl92c_llt_write(hw, LLT_LAST_ENTRY_OF_TX_PKT_BUFFER, boundary);
 223         if (true != rst) {
 224                 pr_err("===> %s #4 fail\n", __func__);
 225                 return rst;
 226         }
 227         return rst;
 228 }
 229 void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index,
 230                      u8 *p_macaddr, bool is_group, u8 enc_algo,
 231                      bool is_wepkey, bool clear_all)
 232 {
 233         struct rtl_priv *rtlpriv = rtl_priv(hw);
 234         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 235         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 236         u8 *macaddr = p_macaddr;
 237         u32 entry_id = 0;
 238         bool is_pairwise = false;
 239         static u8 cam_const_addr[4][6] = {
 240                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
 241                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
 242                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
 243                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
 244         };
 245         static u8 cam_const_broad[] = {
 246                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 247         };
 248
 249         if (clear_all) {
 250                 u8 idx = 0;
 251                 u8 cam_offset = 0;
 252                 u8 clear_number = 5;
 253
 254                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "clear_all\n");
 255                 for (idx = 0; idx < clear_number; idx++) {
 256                         rtl_cam_mark_invalid(hw, cam_offset + idx);
 257                         rtl_cam_empty_entry(hw, cam_offset + idx);
 258                         if (idx < 5) {
 259                                 memset(rtlpriv->sec.key_buf[idx], 0,
 260                                        MAX_KEY_LEN);
 261                                 rtlpriv->sec.key_len[idx] = 0;
 262                         }
 263                 }
 264         } else {
 265                 switch (enc_algo) {
 266                 case WEP40_ENCRYPTION:
 267                         enc_algo = CAM_WEP40;
 268                         break;
 269                 case WEP104_ENCRYPTION:
 270                         enc_algo = CAM_WEP104;
 271                         break;
 272                 case TKIP_ENCRYPTION:
 273                         enc_algo = CAM_TKIP;
 274                         break;
 275                 case AESCCMP_ENCRYPTION:
 276                         enc_algo = CAM_AES;
 277                         break;
 278                 default:
 279                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 280                                  "illegal switch case\n");
 281                         enc_algo = CAM_TKIP;
 282                         break;
 283                 }
 284                 if (is_wepkey || rtlpriv->sec.use_defaultkey) {
 285                         macaddr = cam_const_addr[key_index];
 286                         entry_id = key_index;
 287                 } else {
 288                         if (is_group) {
 289                                 macaddr = cam_const_broad;
 290                                 entry_id = key_index;
 291                         } else {
 292                                 key_index = PAIRWISE_KEYIDX;
 293                                 entry_id = CAM_PAIRWISE_KEY_POSITION;
 294                                 is_pairwise = true;
 295                         }
 296                 }
 297                 if (rtlpriv->sec.key_len[key_index] == 0) {
 298                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 299                                  "delete one entry\n");
 300                         rtl_cam_delete_one_entry(hw, p_macaddr, entry_id);
 301                 } else {
 302                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 303                                  "The insert KEY length is %d\n",
 304                                  rtlpriv->sec.key_len[PAIRWISE_KEYIDX]);
 305                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 306                                  "The insert KEY is %x %x\n",
 307                                  rtlpriv->sec.key_buf[0][0],
 308                                  rtlpriv->sec.key_buf[0][1]);
 309                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 310                                  "add one entry\n");
 311                         if (is_pairwise) {
 312                                 RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD,
 313                                               "Pairwise Key content",
 314                                               rtlpriv->sec.pairwise_key,
 315                                               rtlpriv->sec.
 316                                               key_len[PAIRWISE_KEYIDX]);
 317                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 318                                          "set Pairwise key\n");
 319
 320                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 321                                                 entry_id, enc_algo,
 322                                                 CAM_CONFIG_NO_USEDK,
 323                                                 rtlpriv->sec.
 324                                                 key_buf[key_index]);
 325                         } else {
 326                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 327                                          "set group key\n");
 328                                 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 329                                         rtl_cam_add_one_entry(hw,
 330                                                 rtlefuse->dev_addr,
 331                                                 PAIRWISE_KEYIDX,
 332                                                 CAM_PAIRWISE_KEY_POSITION,
 333                                                 enc_algo,
 334                                                 CAM_CONFIG_NO_USEDK,
 335                                                 rtlpriv->sec.key_buf
 336                                                 [entry_id]);
 337                                 }
 338                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 339                                                 entry_id, enc_algo,
 340                                                 CAM_CONFIG_NO_USEDK,
 341                                                 rtlpriv->sec.key_buf[entry_id]);
 342                         }
 343                 }
 344         }
 345 }
 346
 347 u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw)
 348 {
 349         struct rtl_priv *rtlpriv = rtl_priv(hw);
 350
 351         return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS);
 352 }
 353
 354 void rtl92c_enable_interrupt(struct ieee80211_hw *hw)
 355 {
 356         struct rtl_priv *rtlpriv = rtl_priv(hw);
 357         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 358         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 359         struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
 360
 361         if (IS_HARDWARE_TYPE_8192CE(rtlhal)) {
 362                 rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] &
 363                                 0xFFFFFFFF);
 364                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] &
 365                                 0xFFFFFFFF);
 366         } else {
 367                 rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] &
 368                                 0xFFFFFFFF);
 369                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] &
 370                                 0xFFFFFFFF);
 371         }
 372 }
 373
 374 void rtl92c_init_interrupt(struct ieee80211_hw *hw)
 375 {
 376          rtl92c_enable_interrupt(hw);
 377 }
 378
 379 void rtl92c_disable_interrupt(struct ieee80211_hw *hw)
 380 {
 381         struct rtl_priv *rtlpriv = rtl_priv(hw);
 382
 383         rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
 384         rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
 385 }
 386
 387 void rtl92c_set_qos(struct ieee80211_hw *hw, int aci)
 388 {
 389         struct rtl_priv *rtlpriv = rtl_priv(hw);
 390         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 391         u32 u4b_ac_param;
 392
 393         rtl92c_dm_init_edca_turbo(hw);
 394         u4b_ac_param = (u32) mac->ac[aci].aifs;
 395         u4b_ac_param |=
 396             ((u32) le16_to_cpu(mac->ac[aci].cw_min) & 0xF) <<
 397             AC_PARAM_ECW_MIN_OFFSET;
 398         u4b_ac_param |=
 399             ((u32) le16_to_cpu(mac->ac[aci].cw_max) & 0xF) <<
 400             AC_PARAM_ECW_MAX_OFFSET;
 401         u4b_ac_param |= (u32) le16_to_cpu(mac->ac[aci].tx_op) <<
 402                          AC_PARAM_TXOP_OFFSET;
 403         RT_TRACE(rtlpriv, COMP_QOS, DBG_LOUD, "queue:%x, ac_param:%x\n",
 404                  aci, u4b_ac_param);
 405         switch (aci) {
 406         case AC1_BK:
 407                 rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, u4b_ac_param);
 408                 break;
 409         case AC0_BE:
 410                 rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, u4b_ac_param);
 411                 break;
 412         case AC2_VI:
 413                 rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, u4b_ac_param);
 414                 break;
 415         case AC3_VO:
 416                 rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, u4b_ac_param);
 417                 break;
 418         default:
 419                 RT_ASSERT(false, "invalid aci: %d !\n", aci);
 420                 break;
 421         }
 422 }
 423
 424 /*-------------------------------------------------------------------------
 425  * HW MAC Address
 426  *-------------------------------------------------------------------------*/
 427 void rtl92c_set_mac_addr(struct ieee80211_hw *hw, const u8 *addr)
 428 {
 429         u32 i;
 430         struct rtl_priv *rtlpriv = rtl_priv(hw);
 431
 432         for (i = 0 ; i < ETH_ALEN ; i++)
 433                 rtl_write_byte(rtlpriv, (REG_MACID + i), *(addr+i));
 434
 435         RT_TRACE(rtlpriv, COMP_CMD, DBG_DMESG,
 436                  "MAC Address: %02X-%02X-%02X-%02X-%02X-%02X\n",
 437                  rtl_read_byte(rtlpriv, REG_MACID),
 438                  rtl_read_byte(rtlpriv, REG_MACID+1),
 439                  rtl_read_byte(rtlpriv, REG_MACID+2),
 440                  rtl_read_byte(rtlpriv, REG_MACID+3),
 441                  rtl_read_byte(rtlpriv, REG_MACID+4),
 442                  rtl_read_byte(rtlpriv, REG_MACID+5));
 443 }
 444
 445 void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size)
 446 {
 447         struct rtl_priv *rtlpriv = rtl_priv(hw);
 448         rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size);
 449 }
 450
 451 int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type)
 452 {
 453         u8 value;
 454         struct rtl_priv *rtlpriv = rtl_priv(hw);
 455
 456         switch (type) {
 457         case NL80211_IFTYPE_UNSPECIFIED:
 458                 value = NT_NO_LINK;
 459                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 460                          "Set Network type to NO LINK!\n");
 461                 break;
 462         case NL80211_IFTYPE_ADHOC:
 463                 value = NT_LINK_AD_HOC;
 464                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 465                          "Set Network type to Ad Hoc!\n");
 466                 break;
 467         case NL80211_IFTYPE_STATION:
 468                 value = NT_LINK_AP;
 469                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 470                          "Set Network type to STA!\n");
 471                 break;
 472         case NL80211_IFTYPE_AP:
 473                 value = NT_AS_AP;
 474                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 475                          "Set Network type to AP!\n");
 476                 break;
 477         default:
 478                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 479                          "Network type %d not supported!\n", type);
 480                 return -EOPNOTSUPP;
 481         }
 482         rtl_write_byte(rtlpriv, (REG_CR + 2), value);
 483         return 0;
 484 }
 485
 486 void rtl92c_init_network_type(struct ieee80211_hw *hw)
 487 {
 488         rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED);
 489 }
 490
 491 void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw)
 492 {
 493         u16     value16;
 494         u32     value32;
 495         struct rtl_priv *rtlpriv = rtl_priv(hw);
 496
 497         /* Response Rate Set */
 498         value32 = rtl_read_dword(rtlpriv, REG_RRSR);
 499         value32 &= ~RATE_BITMAP_ALL;
 500         value32 |= RATE_RRSR_CCK_ONLY_1M;
 501         rtl_write_dword(rtlpriv, REG_RRSR, value32);
 502         /* SIFS (used in NAV) */
 503         value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10);
 504         rtl_write_word(rtlpriv,  REG_SPEC_SIFS, value16);
 505         /* Retry Limit */
 506         value16 = _LRL(0x30) | _SRL(0x30);
 507         rtl_write_dword(rtlpriv,  REG_RL, value16);
 508 }
 509
 510 void rtl92c_init_rate_fallback(struct ieee80211_hw *hw)
 511 {
 512         struct rtl_priv *rtlpriv = rtl_priv(hw);
 513
 514         /* Set Data Auto Rate Fallback Retry Count register. */
 515         rtl_write_dword(rtlpriv,  REG_DARFRC, 0x00000000);
 516         rtl_write_dword(rtlpriv,  REG_DARFRC+4, 0x10080404);
 517         rtl_write_dword(rtlpriv,  REG_RARFRC, 0x04030201);
 518         rtl_write_dword(rtlpriv,  REG_RARFRC+4, 0x08070605);
 519 }
 520
 521 static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 522                                 u8 ctx_sifs)
 523 {
 524         struct rtl_priv *rtlpriv = rtl_priv(hw);
 525
 526         rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs);
 527         rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs);
 528 }
 529
 530 static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 531                                  u8 ctx_sifs)
 532 {
 533         struct rtl_priv *rtlpriv = rtl_priv(hw);
 534
 535         rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs);
 536         rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs);
 537 }
 538
 539 void rtl92c_init_edca_param(struct ieee80211_hw *hw,
 540                             u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs)
 541 {
 542         /* sequence: VO, VI, BE, BK ==> the same as 92C hardware design.
 543          * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function.
 544          */
 545         u32 value;
 546         struct rtl_priv *rtlpriv = rtl_priv(hw);
 547
 548         value = (u32)aifs;
 549         value |= ((u32)cw_min & 0xF) << 8;
 550         value |= ((u32)cw_max & 0xF) << 12;
 551         value |= (u32)txop << 16;
 552         /* 92C hardware register sequence is the same as queue number. */
 553         rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value);
 554 }
 555
 556 void rtl92c_init_edca(struct ieee80211_hw *hw)
 557 {
 558         u16 value16;
 559         struct rtl_priv *rtlpriv = rtl_priv(hw);
 560
 561         /* disable EDCCA count down, to reduce collison and retry */
 562         value16 = rtl_read_word(rtlpriv, REG_RD_CTRL);
 563         value16 |= DIS_EDCA_CNT_DWN;
 564         rtl_write_word(rtlpriv, REG_RD_CTRL, value16);
 565         /* Update SIFS timing.  ??????????
 566          * pHalData->SifsTime = 0x0e0e0a0a; */
 567         rtl92c_set_cck_sifs(hw, 0xa, 0xa);
 568         rtl92c_set_ofdm_sifs(hw, 0xe, 0xe);
 569         /* Set CCK/OFDM SIFS to be 10us. */
 570         rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a);
 571         rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010);
 572         rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204);
 573         rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004);
 574         /* TXOP */
 575         rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B);
 576         rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F);
 577         rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324);
 578         rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226);
 579         /* PIFS */
 580         rtl_write_byte(rtlpriv, REG_PIFS, 0x1C);
 581         /* AGGR BREAK TIME Register */
 582         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 583         rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040);
 584         rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02);
 585         rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02);
 586 }
 587
 588 void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw)
 589 {
 590         struct rtl_priv *rtlpriv = rtl_priv(hw);
 591
 592         rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631);
 593         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 594         /* init AMPDU aggregation number, tuning for Tx's TP, */
 595         rtl_write_word(rtlpriv, 0x4CA, 0x0708);
 596 }
 597
 598 void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw, bool infra_mode)
 599 {
 600         struct rtl_priv *rtlpriv = rtl_priv(hw);
 601
 602         rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF);
 603 }
 604
 605 void rtl92c_init_rdg_setting(struct ieee80211_hw *hw)
 606 {
 607         struct rtl_priv *rtlpriv = rtl_priv(hw);
 608
 609         rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF);
 610         rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200);
 611         rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05);
 612 }
 613
 614 void rtl92c_init_retry_function(struct ieee80211_hw *hw)
 615 {
 616         u8      value8;
 617         struct rtl_priv *rtlpriv = rtl_priv(hw);
 618
 619         value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL);
 620         value8 |= EN_AMPDU_RTY_NEW;
 621         rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8);
 622         /* Set ACK timeout */
 623         rtl_write_byte(rtlpriv, REG_ACKTO, 0x40);
 624 }
 625
 626 void rtl92c_init_beacon_parameters(struct ieee80211_hw *hw,
 627                                    enum version_8192c version)
 628 {
 629         struct rtl_priv *rtlpriv = rtl_priv(hw);
 630         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 631
 632         rtl_write_word(rtlpriv, REG_TBTT_PROHIBIT, 0x6404);/* ms */
 633         rtl_write_byte(rtlpriv, REG_DRVERLYINT, DRIVER_EARLY_INT_TIME);/*ms*/
 634         rtl_write_byte(rtlpriv, REG_BCNDMATIM, BCN_DMA_ATIME_INT_TIME);
 635         if (IS_NORMAL_CHIP(rtlhal->version))
 636                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x660F);
 637         else
 638                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x66FF);
 639 }
 640
 641 void rtl92c_disable_fast_edca(struct ieee80211_hw *hw)
 642 {
 643         struct rtl_priv *rtlpriv = rtl_priv(hw);
 644
 645         rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0);
 646 }
 647
 648 void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T)
 649 {
 650         struct rtl_priv *rtlpriv = rtl_priv(hw);
 651         u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T;
 652
 653         rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value);
 654 }
 655
 656 u16 rtl92c_get_mgt_filter(struct ieee80211_hw *hw)
 657 {
 658         struct rtl_priv *rtlpriv = rtl_priv(hw);
 659
 660         return rtl_read_word(rtlpriv, REG_RXFLTMAP0);
 661 }
 662
 663 void rtl92c_set_mgt_filter(struct ieee80211_hw *hw, u16 filter)
 664 {
 665         struct rtl_priv *rtlpriv = rtl_priv(hw);
 666
 667         rtl_write_word(rtlpriv, REG_RXFLTMAP0, filter);
 668 }
 669
 670 u16 rtl92c_get_ctrl_filter(struct ieee80211_hw *hw)
 671 {
 672         struct rtl_priv *rtlpriv = rtl_priv(hw);
 673
 674         return rtl_read_word(rtlpriv, REG_RXFLTMAP1);
 675 }
 676
 677 void rtl92c_set_ctrl_filter(struct ieee80211_hw *hw, u16 filter)
 678 {
 679         struct rtl_priv *rtlpriv = rtl_priv(hw);
 680
 681         rtl_write_word(rtlpriv, REG_RXFLTMAP1, filter);
 682 }
 683
 684 u16 rtl92c_get_data_filter(struct ieee80211_hw *hw)
 685 {
 686         struct rtl_priv *rtlpriv = rtl_priv(hw);
 687
 688         return rtl_read_word(rtlpriv,  REG_RXFLTMAP2);
 689 }
 690
 691 void rtl92c_set_data_filter(struct ieee80211_hw *hw, u16 filter)
 692 {
 693         struct rtl_priv *rtlpriv = rtl_priv(hw);
 694
 695         rtl_write_word(rtlpriv, REG_RXFLTMAP2, filter);
 696 }
 697 /*==============================================================*/
 698
 699 static u8 _rtl92c_query_rxpwrpercentage(char antpower)
 700 {
 701         if ((antpower <= -100) || (antpower >= 20))
 702                 return 0;
 703         else if (antpower >= 0)
 704                 return 100;
 705         else
 706                 return 100 + antpower;
 707 }
 708
 709 static u8 _rtl92c_evm_db_to_percentage(char value)
 710 {
 711         char ret_val;
 712
 713         ret_val = value;
 714         if (ret_val >= 0)
 715                 ret_val = 0;
 716         if (ret_val <= -33)
 717                 ret_val = -33;
 718         ret_val = 0 - ret_val;
 719         ret_val *= 3;
 720         if (ret_val == 99)
 721                 ret_val = 100;
 722         return ret_val;
 723 }
 724
 725 static long _rtl92c_translate_todbm(struct ieee80211_hw *hw,
 726                                      u8 signal_strength_index)
 727 {
 728         long signal_power;
 729
 730         signal_power = (long)((signal_strength_index + 1) >> 1);
 731         signal_power -= 95;
 732         return signal_power;
 733 }
 734
 735 static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
 736                 long currsig)
 737 {
 738         long retsig;
 739
 740         if (currsig >= 61 && currsig <= 100)
 741                 retsig = 90 + ((currsig - 60) / 4);
 742         else if (currsig >= 41 && currsig <= 60)
 743                 retsig = 78 + ((currsig - 40) / 2);
 744         else if (currsig >= 31 && currsig <= 40)
 745                 retsig = 66 + (currsig - 30);
 746         else if (currsig >= 21 && currsig <= 30)
 747                 retsig = 54 + (currsig - 20);
 748         else if (currsig >= 5 && currsig <= 20)
 749                 retsig = 42 + (((currsig - 5) * 2) / 3);
 750         else if (currsig == 4)
 751                 retsig = 36;
 752         else if (currsig == 3)
 753                 retsig = 27;
 754         else if (currsig == 2)
 755                 retsig = 18;
 756         else if (currsig == 1)
 757                 retsig = 9;
 758         else
 759                 retsig = currsig;
 760         return retsig;
 761 }
 762
 763 static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 764                                       struct rtl_stats *pstats,
 765                                       struct rx_desc_92c *pdesc,
 766                                       struct rx_fwinfo_92c *p_drvinfo,
 767                                       bool packet_match_bssid,
 768                                       bool packet_toself,
 769                                       bool packet_beacon)
 770 {
 771         struct rtl_priv *rtlpriv = rtl_priv(hw);
 772         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 773         struct phy_sts_cck_8192s_t *cck_buf;
 774         s8 rx_pwr_all = 0, rx_pwr[4];
 775         u8 rf_rx_num = 0, evm, pwdb_all;
 776         u8 i, max_spatial_stream;
 777         u32 rssi, total_rssi = 0;
 778         bool in_powersavemode = false;
 779         bool is_cck_rate;
 780
 781         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
 782         pstats->packet_matchbssid = packet_match_bssid;
 783         pstats->packet_toself = packet_toself;
 784         pstats->is_cck = is_cck_rate;
 785         pstats->packet_beacon = packet_beacon;
 786         pstats->is_cck = is_cck_rate;
 787         pstats->RX_SIGQ[0] = -1;
 788         pstats->RX_SIGQ[1] = -1;
 789         if (is_cck_rate) {
 790                 u8 report, cck_highpwr;
 791                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 792                 if (!in_powersavemode)
 793                         cck_highpwr = rtlphy->cck_high_power;
 794                 else
 795                         cck_highpwr = false;
 796                 if (!cck_highpwr) {
 797                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 798                         report = cck_buf->cck_agc_rpt & 0xc0;
 799                         report = report >> 6;
 800                         switch (report) {
 801                         case 0x3:
 802                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 803                                 break;
 804                         case 0x2:
 805                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 806                                 break;
 807                         case 0x1:
 808                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 809                                 break;
 810                         case 0x0:
 811                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 812                                 break;
 813                         }
 814                 } else {
 815                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 816                         report = p_drvinfo->cfosho[0] & 0x60;
 817                         report = report >> 5;
 818                         switch (report) {
 819                         case 0x3:
 820                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 821                                 break;
 822                         case 0x2:
 823                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 824                                 break;
 825                         case 0x1:
 826                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 827                                 break;
 828                         case 0x0:
 829                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 830                                 break;
 831                         }
 832                 }
 833                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 834                 pstats->rx_pwdb_all = pwdb_all;
 835                 pstats->recvsignalpower = rx_pwr_all;
 836                 if (packet_match_bssid) {
 837                         u8 sq;
 838                         if (pstats->rx_pwdb_all > 40)
 839                                 sq = 100;
 840                         else {
 841                                 sq = cck_buf->sq_rpt;
 842                                 if (sq > 64)
 843                                         sq = 0;
 844                                 else if (sq < 20)
 845                                         sq = 100;
 846                                 else
 847                                         sq = ((64 - sq) * 100) / 44;
 848                         }
 849                         pstats->signalquality = sq;
 850                         pstats->RX_SIGQ[0] = sq;
 851                         pstats->RX_SIGQ[1] = -1;
 852                 }
 853         } else {
 854                 rtlpriv->dm.rfpath_rxenable[0] =
 855                     rtlpriv->dm.rfpath_rxenable[1] = true;
 856                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 857                         if (rtlpriv->dm.rfpath_rxenable[i])
 858                                 rf_rx_num++;
 859                         rx_pwr[i] =
 860                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 861                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 862                         total_rssi += rssi;
 863                         rtlpriv->stats.rx_snr_db[i] =
 864                             (long)(p_drvinfo->rxsnr[i] / 2);
 865
 866                         if (packet_match_bssid)
 867                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 868                 }
 869                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 870                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 871                 pstats->rx_pwdb_all = pwdb_all;
 872                 pstats->rxpower = rx_pwr_all;
 873                 pstats->recvsignalpower = rx_pwr_all;
 874                 if (GET_RX_DESC_RX_MCS(pdesc) &&
 875                     GET_RX_DESC_RX_MCS(pdesc) >= DESC92_RATEMCS8 &&
 876                     GET_RX_DESC_RX_MCS(pdesc) <= DESC92_RATEMCS15)
 877                         max_spatial_stream = 2;
 878                 else
 879                         max_spatial_stream = 1;
 880                 for (i = 0; i < max_spatial_stream; i++) {
 881                         evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 882                         if (packet_match_bssid) {
 883                                 if (i == 0)
 884                                         pstats->signalquality =
 885                                             (u8) (evm & 0xff);
 886                                 pstats->RX_SIGQ[i] =
 887                                     (u8) (evm & 0xff);
 888                         }
 889                 }
 890         }
 891         if (is_cck_rate)
 892                 pstats->signalstrength =
 893                     (u8) (_rtl92c_signal_scale_mapping(hw, pwdb_all));
 894         else if (rf_rx_num != 0)
 895                 pstats->signalstrength =
 896                     (u8) (_rtl92c_signal_scale_mapping
 897                           (hw, total_rssi /= rf_rx_num));
 898 }
 899
 900 static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw,
 901                 struct rtl_stats *pstats)
 902 {
 903         struct rtl_priv *rtlpriv = rtl_priv(hw);
 904         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 905         u8 rfpath;
 906         u32 last_rssi, tmpval;
 907
 908         if (pstats->packet_toself || pstats->packet_beacon) {
 909                 rtlpriv->stats.rssi_calculate_cnt++;
 910                 if (rtlpriv->stats.ui_rssi.total_num++ >=
 911                     PHY_RSSI_SLID_WIN_MAX) {
 912                         rtlpriv->stats.ui_rssi.total_num =
 913                             PHY_RSSI_SLID_WIN_MAX;
 914                         last_rssi =
 915                             rtlpriv->stats.ui_rssi.elements[rtlpriv->
 916                                                            stats.ui_rssi.index];
 917                         rtlpriv->stats.ui_rssi.total_val -= last_rssi;
 918                 }
 919                 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
 920                 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
 921                                         index++] = pstats->signalstrength;
 922                 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
 923                         rtlpriv->stats.ui_rssi.index = 0;
 924                 tmpval = rtlpriv->stats.ui_rssi.total_val /
 925                     rtlpriv->stats.ui_rssi.total_num;
 926                 rtlpriv->stats.signal_strength =
 927                     _rtl92c_translate_todbm(hw, (u8) tmpval);
 928                 pstats->rssi = rtlpriv->stats.signal_strength;
 929         }
 930         if (!pstats->is_cck && pstats->packet_toself) {
 931                 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
 932                      rfpath++) {
 933                         if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
 934                                 continue;
 935                         if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
 936                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 937                                     pstats->rx_mimo_signalstrength[rfpath];
 938                         }
 939                         if (pstats->rx_mimo_signalstrength[rfpath] >
 940                             rtlpriv->stats.rx_rssi_percentage[rfpath]) {
 941                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 942                                     ((rtlpriv->stats.
 943                                       rx_rssi_percentage[rfpath] *
 944                                       (RX_SMOOTH_FACTOR - 1)) +
 945                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 946                                     (RX_SMOOTH_FACTOR);
 947
 948                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 949                                     rtlpriv->stats.rx_rssi_percentage[rfpath] +
 950                                     1;
 951                         } else {
 952                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 953                                     ((rtlpriv->stats.
 954                                       rx_rssi_percentage[rfpath] *
 955                                       (RX_SMOOTH_FACTOR - 1)) +
 956                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 957                                     (RX_SMOOTH_FACTOR);
 958                         }
 959                 }
 960         }
 961 }
 962
 963 static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw,
 964                                                struct rtl_stats *pstats)
 965 {
 966         struct rtl_priv *rtlpriv = rtl_priv(hw);
 967         int weighting = 0;
 968
 969         if (rtlpriv->stats.recv_signal_power == 0)
 970                 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
 971         if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
 972                 weighting = 5;
 973         else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
 974                 weighting = (-5);
 975         rtlpriv->stats.recv_signal_power =
 976             (rtlpriv->stats.recv_signal_power * 5 +
 977              pstats->recvsignalpower + weighting) / 6;
 978 }
 979
 980 static void _rtl92c_process_pwdb(struct ieee80211_hw *hw,
 981                 struct rtl_stats *pstats)
 982 {
 983         struct rtl_priv *rtlpriv = rtl_priv(hw);
 984         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 985         long undec_sm_pwdb = 0;
 986
 987         if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 988                 return;
 989         } else {
 990                 undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
 991         }
 992         if (pstats->packet_toself || pstats->packet_beacon) {
 993                 if (undec_sm_pwdb < 0)
 994                         undec_sm_pwdb = pstats->rx_pwdb_all;
 995                 if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
 996                         undec_sm_pwdb = (((undec_sm_pwdb) *
 997                               (RX_SMOOTH_FACTOR - 1)) +
 998                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
 999                         undec_sm_pwdb += 1;
1000                 } else {
1001                         undec_sm_pwdb = (((undec_sm_pwdb) *
1002                               (RX_SMOOTH_FACTOR - 1)) +
1003                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
1004                 }
1005                 rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
1006                 _rtl92c_update_rxsignalstatistics(hw, pstats);
1007         }
1008 }
1009
1010 static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw,
1011                                              struct rtl_stats *pstats)
1012 {
1013         struct rtl_priv *rtlpriv = rtl_priv(hw);
1014         u32 last_evm = 0, n_stream, tmpval;
1015
1016         if (pstats->signalquality != 0) {
1017                 if (pstats->packet_toself || pstats->packet_beacon) {
1018                         if (rtlpriv->stats.LINK_Q.total_num++ >=
1019                             PHY_LINKQUALITY_SLID_WIN_MAX) {
1020                                 rtlpriv->stats.LINK_Q.total_num =
1021                                     PHY_LINKQUALITY_SLID_WIN_MAX;
1022                                 last_evm =
1023                                     rtlpriv->stats.LINK_Q.elements
1024                                     [rtlpriv->stats.LINK_Q.index];
1025                                 rtlpriv->stats.LINK_Q.total_val -=
1026                                     last_evm;
1027                         }
1028                         rtlpriv->stats.LINK_Q.total_val +=
1029                             pstats->signalquality;
1030                         rtlpriv->stats.LINK_Q.elements
1031                            [rtlpriv->stats.LINK_Q.index++] =
1032                             pstats->signalquality;
1033                         if (rtlpriv->stats.LINK_Q.index >=
1034                             PHY_LINKQUALITY_SLID_WIN_MAX)
1035                                 rtlpriv->stats.LINK_Q.index = 0;
1036                         tmpval = rtlpriv->stats.LINK_Q.total_val /
1037                             rtlpriv->stats.LINK_Q.total_num;
1038                         rtlpriv->stats.signal_quality = tmpval;
1039                         rtlpriv->stats.last_sigstrength_inpercent = tmpval;
1040                         for (n_stream = 0; n_stream < 2;
1041                              n_stream++) {
1042                                 if (pstats->RX_SIGQ[n_stream] != -1) {
1043                                         if (!rtlpriv->stats.RX_EVM[n_stream]) {
1044                                                 rtlpriv->stats.RX_EVM[n_stream]
1045                                                  = pstats->RX_SIGQ[n_stream];
1046                                         }
1047                                         rtlpriv->stats.RX_EVM[n_stream] =
1048                                             ((rtlpriv->stats.RX_EVM
1049                                             [n_stream] *
1050                                             (RX_SMOOTH_FACTOR - 1)) +
1051                                             (pstats->RX_SIGQ
1052                                             [n_stream] * 1)) /
1053                                             (RX_SMOOTH_FACTOR);
1054                                 }
1055                         }
1056                 }
1057         } else {
1058                 ;
1059         }
1060 }
1061
1062 static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw,
1063                                      u8 *buffer,
1064                                      struct rtl_stats *pcurrent_stats)
1065 {
1066         if (!pcurrent_stats->packet_matchbssid &&
1067             !pcurrent_stats->packet_beacon)
1068                 return;
1069         _rtl92c_process_ui_rssi(hw, pcurrent_stats);
1070         _rtl92c_process_pwdb(hw, pcurrent_stats);
1071         _rtl92c_process_LINK_Q(hw, pcurrent_stats);
1072 }
1073
1074 void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
1075                                                struct sk_buff *skb,
1076                                                struct rtl_stats *pstats,
1077                                                struct rx_desc_92c *pdesc,
1078                                                struct rx_fwinfo_92c *p_drvinfo)
1079 {
1080         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1081         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1082         struct ieee80211_hdr *hdr;
1083         u8 *tmp_buf;
1084         u8 *praddr;
1085         __le16 fc;
1086         u16 type, cpu_fc;
1087         bool packet_matchbssid, packet_toself, packet_beacon = false;
1088
1089         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
1090         hdr = (struct ieee80211_hdr *)tmp_buf;
1091         fc = hdr->frame_control;
1092         cpu_fc = le16_to_cpu(fc);
1093         type = WLAN_FC_GET_TYPE(fc);
1094         praddr = hdr->addr1;
1095         packet_matchbssid =
1096             ((IEEE80211_FTYPE_CTL != type) &&
1097              ether_addr_equal(mac->bssid,
1098                               (cpu_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
1099                               (cpu_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
1100                               hdr->addr3) &&
1101              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
1102
1103         packet_toself = packet_matchbssid &&
1104             ether_addr_equal(praddr, rtlefuse->dev_addr);
1105         if (ieee80211_is_beacon(fc))
1106                 packet_beacon = true;
1107         _rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
1108                                    packet_matchbssid, packet_toself,
1109                                    packet_beacon);
1110         _rtl92c_process_phyinfo(hw, tmp_buf, pstats);
1111 }