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                                 if (mac->opmode == NL80211_IFTYPE_AP ||
 293                                     mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 294                                         entry_id = rtl_cam_get_free_entry(hw,
 295                                                                  p_macaddr);
 296                                         if (entry_id >=  TOTAL_CAM_ENTRY) {
 297                                                 RT_TRACE(rtlpriv, COMP_SEC,
 298                                                          DBG_EMERG,
 299                                                          "Can not find free hw security cam entry\n");
 300                                                 return;
 301                                         }
 302                                 } else {
 303                                         entry_id = CAM_PAIRWISE_KEY_POSITION;
 304                                 }
 305
 306                                 key_index = PAIRWISE_KEYIDX;
 307                                 is_pairwise = true;
 308                         }
 309                 }
 310                 if (rtlpriv->sec.key_len[key_index] == 0) {
 311                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 312                                  "delete one entry\n");
 313                         if (mac->opmode == NL80211_IFTYPE_AP ||
 314                             mac->opmode == NL80211_IFTYPE_MESH_POINT)
 315                                 rtl_cam_del_entry(hw, p_macaddr);
 316                         rtl_cam_delete_one_entry(hw, p_macaddr, entry_id);
 317                 } else {
 318                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 319                                  "The insert KEY length is %d\n",
 320                                  rtlpriv->sec.key_len[PAIRWISE_KEYIDX]);
 321                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 322                                  "The insert KEY is %x %x\n",
 323                                  rtlpriv->sec.key_buf[0][0],
 324                                  rtlpriv->sec.key_buf[0][1]);
 325                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 326                                  "add one entry\n");
 327                         if (is_pairwise) {
 328                                 RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD,
 329                                               "Pairwise Key content",
 330                                               rtlpriv->sec.pairwise_key,
 331                                               rtlpriv->sec.
 332                                               key_len[PAIRWISE_KEYIDX]);
 333                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 334                                          "set Pairwise key\n");
 335
 336                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 337                                                 entry_id, enc_algo,
 338                                                 CAM_CONFIG_NO_USEDK,
 339                                                 rtlpriv->sec.
 340                                                 key_buf[key_index]);
 341                         } else {
 342                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 343                                          "set group key\n");
 344                                 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 345                                         rtl_cam_add_one_entry(hw,
 346                                                 rtlefuse->dev_addr,
 347                                                 PAIRWISE_KEYIDX,
 348                                                 CAM_PAIRWISE_KEY_POSITION,
 349                                                 enc_algo,
 350                                                 CAM_CONFIG_NO_USEDK,
 351                                                 rtlpriv->sec.key_buf
 352                                                 [entry_id]);
 353                                 }
 354                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 355                                                 entry_id, enc_algo,
 356                                                 CAM_CONFIG_NO_USEDK,
 357                                                 rtlpriv->sec.key_buf[entry_id]);
 358                         }
 359                 }
 360         }
 361 }
 362
 363 u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw)
 364 {
 365         struct rtl_priv *rtlpriv = rtl_priv(hw);
 366
 367         return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS);
 368 }
 369
 370 void rtl92c_enable_interrupt(struct ieee80211_hw *hw)
 371 {
 372         struct rtl_priv *rtlpriv = rtl_priv(hw);
 373         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 374         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 375         struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
 376
 377         if (IS_HARDWARE_TYPE_8192CE(rtlhal)) {
 378                 rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] &
 379                                 0xFFFFFFFF);
 380                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] &
 381                                 0xFFFFFFFF);
 382         } else {
 383                 rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] &
 384                                 0xFFFFFFFF);
 385                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] &
 386                                 0xFFFFFFFF);
 387         }
 388 }
 389
 390 void rtl92c_init_interrupt(struct ieee80211_hw *hw)
 391 {
 392          rtl92c_enable_interrupt(hw);
 393 }
 394
 395 void rtl92c_disable_interrupt(struct ieee80211_hw *hw)
 396 {
 397         struct rtl_priv *rtlpriv = rtl_priv(hw);
 398
 399         rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
 400         rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
 401 }
 402
 403 void rtl92c_set_qos(struct ieee80211_hw *hw, int aci)
 404 {
 405         struct rtl_priv *rtlpriv = rtl_priv(hw);
 406         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 407         u32 u4b_ac_param;
 408
 409         rtl92c_dm_init_edca_turbo(hw);
 410         u4b_ac_param = (u32) mac->ac[aci].aifs;
 411         u4b_ac_param |=
 412             ((u32) le16_to_cpu(mac->ac[aci].cw_min) & 0xF) <<
 413             AC_PARAM_ECW_MIN_OFFSET;
 414         u4b_ac_param |=
 415             ((u32) le16_to_cpu(mac->ac[aci].cw_max) & 0xF) <<
 416             AC_PARAM_ECW_MAX_OFFSET;
 417         u4b_ac_param |= (u32) le16_to_cpu(mac->ac[aci].tx_op) <<
 418                          AC_PARAM_TXOP_OFFSET;
 419         RT_TRACE(rtlpriv, COMP_QOS, DBG_LOUD, "queue:%x, ac_param:%x\n",
 420                  aci, u4b_ac_param);
 421         switch (aci) {
 422         case AC1_BK:
 423                 rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, u4b_ac_param);
 424                 break;
 425         case AC0_BE:
 426                 rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, u4b_ac_param);
 427                 break;
 428         case AC2_VI:
 429                 rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, u4b_ac_param);
 430                 break;
 431         case AC3_VO:
 432                 rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, u4b_ac_param);
 433                 break;
 434         default:
 435                 RT_ASSERT(false, "invalid aci: %d !\n", aci);
 436                 break;
 437         }
 438 }
 439
 440 /*-------------------------------------------------------------------------
 441  * HW MAC Address
 442  *-------------------------------------------------------------------------*/
 443 void rtl92c_set_mac_addr(struct ieee80211_hw *hw, const u8 *addr)
 444 {
 445         u32 i;
 446         struct rtl_priv *rtlpriv = rtl_priv(hw);
 447
 448         for (i = 0 ; i < ETH_ALEN ; i++)
 449                 rtl_write_byte(rtlpriv, (REG_MACID + i), *(addr+i));
 450
 451         RT_TRACE(rtlpriv, COMP_CMD, DBG_DMESG,
 452                  "MAC Address: %02X-%02X-%02X-%02X-%02X-%02X\n",
 453                  rtl_read_byte(rtlpriv, REG_MACID),
 454                  rtl_read_byte(rtlpriv, REG_MACID+1),
 455                  rtl_read_byte(rtlpriv, REG_MACID+2),
 456                  rtl_read_byte(rtlpriv, REG_MACID+3),
 457                  rtl_read_byte(rtlpriv, REG_MACID+4),
 458                  rtl_read_byte(rtlpriv, REG_MACID+5));
 459 }
 460
 461 void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size)
 462 {
 463         struct rtl_priv *rtlpriv = rtl_priv(hw);
 464         rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size);
 465 }
 466
 467 int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type)
 468 {
 469         u8 value;
 470         struct rtl_priv *rtlpriv = rtl_priv(hw);
 471
 472         switch (type) {
 473         case NL80211_IFTYPE_UNSPECIFIED:
 474                 value = NT_NO_LINK;
 475                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 476                          "Set Network type to NO LINK!\n");
 477                 break;
 478         case NL80211_IFTYPE_ADHOC:
 479                 value = NT_LINK_AD_HOC;
 480                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 481                          "Set Network type to Ad Hoc!\n");
 482                 break;
 483         case NL80211_IFTYPE_STATION:
 484                 value = NT_LINK_AP;
 485                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 486                          "Set Network type to STA!\n");
 487                 break;
 488         case NL80211_IFTYPE_AP:
 489                 value = NT_AS_AP;
 490                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 491                          "Set Network type to AP!\n");
 492                 break;
 493         default:
 494                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 495                          "Network type %d not supported!\n", type);
 496                 return -EOPNOTSUPP;
 497         }
 498         rtl_write_byte(rtlpriv, (REG_CR + 2), value);
 499         return 0;
 500 }
 501
 502 void rtl92c_init_network_type(struct ieee80211_hw *hw)
 503 {
 504         rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED);
 505 }
 506
 507 void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw)
 508 {
 509         u16     value16;
 510         u32     value32;
 511         struct rtl_priv *rtlpriv = rtl_priv(hw);
 512
 513         /* Response Rate Set */
 514         value32 = rtl_read_dword(rtlpriv, REG_RRSR);
 515         value32 &= ~RATE_BITMAP_ALL;
 516         value32 |= RATE_RRSR_CCK_ONLY_1M;
 517         rtl_write_dword(rtlpriv, REG_RRSR, value32);
 518         /* SIFS (used in NAV) */
 519         value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10);
 520         rtl_write_word(rtlpriv,  REG_SPEC_SIFS, value16);
 521         /* Retry Limit */
 522         value16 = _LRL(0x30) | _SRL(0x30);
 523         rtl_write_dword(rtlpriv,  REG_RL, value16);
 524 }
 525
 526 void rtl92c_init_rate_fallback(struct ieee80211_hw *hw)
 527 {
 528         struct rtl_priv *rtlpriv = rtl_priv(hw);
 529
 530         /* Set Data Auto Rate Fallback Retry Count register. */
 531         rtl_write_dword(rtlpriv,  REG_DARFRC, 0x00000000);
 532         rtl_write_dword(rtlpriv,  REG_DARFRC+4, 0x10080404);
 533         rtl_write_dword(rtlpriv,  REG_RARFRC, 0x04030201);
 534         rtl_write_dword(rtlpriv,  REG_RARFRC+4, 0x08070605);
 535 }
 536
 537 static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 538                                 u8 ctx_sifs)
 539 {
 540         struct rtl_priv *rtlpriv = rtl_priv(hw);
 541
 542         rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs);
 543         rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs);
 544 }
 545
 546 static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 547                                  u8 ctx_sifs)
 548 {
 549         struct rtl_priv *rtlpriv = rtl_priv(hw);
 550
 551         rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs);
 552         rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs);
 553 }
 554
 555 void rtl92c_init_edca_param(struct ieee80211_hw *hw,
 556                             u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs)
 557 {
 558         /* sequence: VO, VI, BE, BK ==> the same as 92C hardware design.
 559          * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function.
 560          */
 561         u32 value;
 562         struct rtl_priv *rtlpriv = rtl_priv(hw);
 563
 564         value = (u32)aifs;
 565         value |= ((u32)cw_min & 0xF) << 8;
 566         value |= ((u32)cw_max & 0xF) << 12;
 567         value |= (u32)txop << 16;
 568         /* 92C hardware register sequence is the same as queue number. */
 569         rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value);
 570 }
 571
 572 void rtl92c_init_edca(struct ieee80211_hw *hw)
 573 {
 574         u16 value16;
 575         struct rtl_priv *rtlpriv = rtl_priv(hw);
 576
 577         /* disable EDCCA count down, to reduce collison and retry */
 578         value16 = rtl_read_word(rtlpriv, REG_RD_CTRL);
 579         value16 |= DIS_EDCA_CNT_DWN;
 580         rtl_write_word(rtlpriv, REG_RD_CTRL, value16);
 581         /* Update SIFS timing.  ??????????
 582          * pHalData->SifsTime = 0x0e0e0a0a; */
 583         rtl92c_set_cck_sifs(hw, 0xa, 0xa);
 584         rtl92c_set_ofdm_sifs(hw, 0xe, 0xe);
 585         /* Set CCK/OFDM SIFS to be 10us. */
 586         rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a);
 587         rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010);
 588         rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204);
 589         rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004);
 590         /* TXOP */
 591         rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B);
 592         rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F);
 593         rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324);
 594         rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226);
 595         /* PIFS */
 596         rtl_write_byte(rtlpriv, REG_PIFS, 0x1C);
 597         /* AGGR BREAK TIME Register */
 598         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 599         rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040);
 600         rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02);
 601         rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02);
 602 }
 603
 604 void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw)
 605 {
 606         struct rtl_priv *rtlpriv = rtl_priv(hw);
 607
 608         rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631);
 609         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 610         /* init AMPDU aggregation number, tuning for Tx's TP, */
 611         rtl_write_word(rtlpriv, 0x4CA, 0x0708);
 612 }
 613
 614 void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw, bool infra_mode)
 615 {
 616         struct rtl_priv *rtlpriv = rtl_priv(hw);
 617
 618         rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF);
 619 }
 620
 621 void rtl92c_init_rdg_setting(struct ieee80211_hw *hw)
 622 {
 623         struct rtl_priv *rtlpriv = rtl_priv(hw);
 624
 625         rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF);
 626         rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200);
 627         rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05);
 628 }
 629
 630 void rtl92c_init_retry_function(struct ieee80211_hw *hw)
 631 {
 632         u8      value8;
 633         struct rtl_priv *rtlpriv = rtl_priv(hw);
 634
 635         value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL);
 636         value8 |= EN_AMPDU_RTY_NEW;
 637         rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8);
 638         /* Set ACK timeout */
 639         rtl_write_byte(rtlpriv, REG_ACKTO, 0x40);
 640 }
 641
 642 void rtl92c_init_beacon_parameters(struct ieee80211_hw *hw,
 643                                    enum version_8192c version)
 644 {
 645         struct rtl_priv *rtlpriv = rtl_priv(hw);
 646         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 647
 648         rtl_write_word(rtlpriv, REG_TBTT_PROHIBIT, 0x6404);/* ms */
 649         rtl_write_byte(rtlpriv, REG_DRVERLYINT, DRIVER_EARLY_INT_TIME);/*ms*/
 650         rtl_write_byte(rtlpriv, REG_BCNDMATIM, BCN_DMA_ATIME_INT_TIME);
 651         if (IS_NORMAL_CHIP(rtlhal->version))
 652                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x660F);
 653         else
 654                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x66FF);
 655 }
 656
 657 void rtl92c_disable_fast_edca(struct ieee80211_hw *hw)
 658 {
 659         struct rtl_priv *rtlpriv = rtl_priv(hw);
 660
 661         rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0);
 662 }
 663
 664 void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T)
 665 {
 666         struct rtl_priv *rtlpriv = rtl_priv(hw);
 667         u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T;
 668
 669         rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value);
 670 }
 671
 672 u16 rtl92c_get_mgt_filter(struct ieee80211_hw *hw)
 673 {
 674         struct rtl_priv *rtlpriv = rtl_priv(hw);
 675
 676         return rtl_read_word(rtlpriv, REG_RXFLTMAP0);
 677 }
 678
 679 void rtl92c_set_mgt_filter(struct ieee80211_hw *hw, u16 filter)
 680 {
 681         struct rtl_priv *rtlpriv = rtl_priv(hw);
 682
 683         rtl_write_word(rtlpriv, REG_RXFLTMAP0, filter);
 684 }
 685
 686 u16 rtl92c_get_ctrl_filter(struct ieee80211_hw *hw)
 687 {
 688         struct rtl_priv *rtlpriv = rtl_priv(hw);
 689
 690         return rtl_read_word(rtlpriv, REG_RXFLTMAP1);
 691 }
 692
 693 void rtl92c_set_ctrl_filter(struct ieee80211_hw *hw, u16 filter)
 694 {
 695         struct rtl_priv *rtlpriv = rtl_priv(hw);
 696
 697         rtl_write_word(rtlpriv, REG_RXFLTMAP1, filter);
 698 }
 699
 700 u16 rtl92c_get_data_filter(struct ieee80211_hw *hw)
 701 {
 702         struct rtl_priv *rtlpriv = rtl_priv(hw);
 703
 704         return rtl_read_word(rtlpriv,  REG_RXFLTMAP2);
 705 }
 706
 707 void rtl92c_set_data_filter(struct ieee80211_hw *hw, u16 filter)
 708 {
 709         struct rtl_priv *rtlpriv = rtl_priv(hw);
 710
 711         rtl_write_word(rtlpriv, REG_RXFLTMAP2, filter);
 712 }
 713 /*==============================================================*/
 714
 715 static u8 _rtl92c_query_rxpwrpercentage(char antpower)
 716 {
 717         if ((antpower <= -100) || (antpower >= 20))
 718                 return 0;
 719         else if (antpower >= 0)
 720                 return 100;
 721         else
 722                 return 100 + antpower;
 723 }
 724
 725 static u8 _rtl92c_evm_db_to_percentage(char value)
 726 {
 727         char ret_val;
 728
 729         ret_val = value;
 730         if (ret_val >= 0)
 731                 ret_val = 0;
 732         if (ret_val <= -33)
 733                 ret_val = -33;
 734         ret_val = 0 - ret_val;
 735         ret_val *= 3;
 736         if (ret_val == 99)
 737                 ret_val = 100;
 738         return ret_val;
 739 }
 740
 741 static long _rtl92c_translate_todbm(struct ieee80211_hw *hw,
 742                                      u8 signal_strength_index)
 743 {
 744         long signal_power;
 745
 746         signal_power = (long)((signal_strength_index + 1) >> 1);
 747         signal_power -= 95;
 748         return signal_power;
 749 }
 750
 751 static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
 752                 long currsig)
 753 {
 754         long retsig;
 755
 756         if (currsig >= 61 && currsig <= 100)
 757                 retsig = 90 + ((currsig - 60) / 4);
 758         else if (currsig >= 41 && currsig <= 60)
 759                 retsig = 78 + ((currsig - 40) / 2);
 760         else if (currsig >= 31 && currsig <= 40)
 761                 retsig = 66 + (currsig - 30);
 762         else if (currsig >= 21 && currsig <= 30)
 763                 retsig = 54 + (currsig - 20);
 764         else if (currsig >= 5 && currsig <= 20)
 765                 retsig = 42 + (((currsig - 5) * 2) / 3);
 766         else if (currsig == 4)
 767                 retsig = 36;
 768         else if (currsig == 3)
 769                 retsig = 27;
 770         else if (currsig == 2)
 771                 retsig = 18;
 772         else if (currsig == 1)
 773                 retsig = 9;
 774         else
 775                 retsig = currsig;
 776         return retsig;
 777 }
 778
 779 static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 780                                       struct rtl_stats *pstats,
 781                                       struct rx_desc_92c *pdesc,
 782                                       struct rx_fwinfo_92c *p_drvinfo,
 783                                       bool packet_match_bssid,
 784                                       bool packet_toself,
 785                                       bool packet_beacon)
 786 {
 787         struct rtl_priv *rtlpriv = rtl_priv(hw);
 788         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 789         struct phy_sts_cck_8192s_t *cck_buf;
 790         s8 rx_pwr_all = 0, rx_pwr[4];
 791         u8 rf_rx_num = 0, evm, pwdb_all;
 792         u8 i, max_spatial_stream;
 793         u32 rssi, total_rssi = 0;
 794         bool in_powersavemode = false;
 795         bool is_cck_rate;
 796
 797         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
 798         pstats->packet_matchbssid = packet_match_bssid;
 799         pstats->packet_toself = packet_toself;
 800         pstats->is_cck = is_cck_rate;
 801         pstats->packet_beacon = packet_beacon;
 802         pstats->is_cck = is_cck_rate;
 803         pstats->RX_SIGQ[0] = -1;
 804         pstats->RX_SIGQ[1] = -1;
 805         if (is_cck_rate) {
 806                 u8 report, cck_highpwr;
 807                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 808                 if (!in_powersavemode)
 809                         cck_highpwr = rtlphy->cck_high_power;
 810                 else
 811                         cck_highpwr = false;
 812                 if (!cck_highpwr) {
 813                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 814                         report = cck_buf->cck_agc_rpt & 0xc0;
 815                         report = report >> 6;
 816                         switch (report) {
 817                         case 0x3:
 818                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 819                                 break;
 820                         case 0x2:
 821                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 822                                 break;
 823                         case 0x1:
 824                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 825                                 break;
 826                         case 0x0:
 827                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 828                                 break;
 829                         }
 830                 } else {
 831                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 832                         report = p_drvinfo->cfosho[0] & 0x60;
 833                         report = report >> 5;
 834                         switch (report) {
 835                         case 0x3:
 836                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 837                                 break;
 838                         case 0x2:
 839                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 840                                 break;
 841                         case 0x1:
 842                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 843                                 break;
 844                         case 0x0:
 845                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 846                                 break;
 847                         }
 848                 }
 849                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 850                 pstats->rx_pwdb_all = pwdb_all;
 851                 pstats->recvsignalpower = rx_pwr_all;
 852                 if (packet_match_bssid) {
 853                         u8 sq;
 854                         if (pstats->rx_pwdb_all > 40)
 855                                 sq = 100;
 856                         else {
 857                                 sq = cck_buf->sq_rpt;
 858                                 if (sq > 64)
 859                                         sq = 0;
 860                                 else if (sq < 20)
 861                                         sq = 100;
 862                                 else
 863                                         sq = ((64 - sq) * 100) / 44;
 864                         }
 865                         pstats->signalquality = sq;
 866                         pstats->RX_SIGQ[0] = sq;
 867                         pstats->RX_SIGQ[1] = -1;
 868                 }
 869         } else {
 870                 rtlpriv->dm.rfpath_rxenable[0] =
 871                     rtlpriv->dm.rfpath_rxenable[1] = true;
 872                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 873                         if (rtlpriv->dm.rfpath_rxenable[i])
 874                                 rf_rx_num++;
 875                         rx_pwr[i] =
 876                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 877                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 878                         total_rssi += rssi;
 879                         rtlpriv->stats.rx_snr_db[i] =
 880                             (long)(p_drvinfo->rxsnr[i] / 2);
 881
 882                         if (packet_match_bssid)
 883                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 884                 }
 885                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 886                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 887                 pstats->rx_pwdb_all = pwdb_all;
 888                 pstats->rxpower = rx_pwr_all;
 889                 pstats->recvsignalpower = rx_pwr_all;
 890                 if (GET_RX_DESC_RX_MCS(pdesc) &&
 891                     GET_RX_DESC_RX_MCS(pdesc) >= DESC92_RATEMCS8 &&
 892                     GET_RX_DESC_RX_MCS(pdesc) <= DESC92_RATEMCS15)
 893                         max_spatial_stream = 2;
 894                 else
 895                         max_spatial_stream = 1;
 896                 for (i = 0; i < max_spatial_stream; i++) {
 897                         evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 898                         if (packet_match_bssid) {
 899                                 if (i == 0)
 900                                         pstats->signalquality =
 901                                             (u8) (evm & 0xff);
 902                                 pstats->RX_SIGQ[i] =
 903                                     (u8) (evm & 0xff);
 904                         }
 905                 }
 906         }
 907         if (is_cck_rate)
 908                 pstats->signalstrength =
 909                     (u8) (_rtl92c_signal_scale_mapping(hw, pwdb_all));
 910         else if (rf_rx_num != 0)
 911                 pstats->signalstrength =
 912                     (u8) (_rtl92c_signal_scale_mapping
 913                           (hw, total_rssi /= rf_rx_num));
 914 }
 915
 916 static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw,
 917                 struct rtl_stats *pstats)
 918 {
 919         struct rtl_priv *rtlpriv = rtl_priv(hw);
 920         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 921         u8 rfpath;
 922         u32 last_rssi, tmpval;
 923
 924         if (pstats->packet_toself || pstats->packet_beacon) {
 925                 rtlpriv->stats.rssi_calculate_cnt++;
 926                 if (rtlpriv->stats.ui_rssi.total_num++ >=
 927                     PHY_RSSI_SLID_WIN_MAX) {
 928                         rtlpriv->stats.ui_rssi.total_num =
 929                             PHY_RSSI_SLID_WIN_MAX;
 930                         last_rssi =
 931                             rtlpriv->stats.ui_rssi.elements[rtlpriv->
 932                                                            stats.ui_rssi.index];
 933                         rtlpriv->stats.ui_rssi.total_val -= last_rssi;
 934                 }
 935                 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
 936                 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
 937                                         index++] = pstats->signalstrength;
 938                 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
 939                         rtlpriv->stats.ui_rssi.index = 0;
 940                 tmpval = rtlpriv->stats.ui_rssi.total_val /
 941                     rtlpriv->stats.ui_rssi.total_num;
 942                 rtlpriv->stats.signal_strength =
 943                     _rtl92c_translate_todbm(hw, (u8) tmpval);
 944                 pstats->rssi = rtlpriv->stats.signal_strength;
 945         }
 946         if (!pstats->is_cck && pstats->packet_toself) {
 947                 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
 948                      rfpath++) {
 949                         if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
 950                                 continue;
 951                         if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
 952                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 953                                     pstats->rx_mimo_signalstrength[rfpath];
 954                         }
 955                         if (pstats->rx_mimo_signalstrength[rfpath] >
 956                             rtlpriv->stats.rx_rssi_percentage[rfpath]) {
 957                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 958                                     ((rtlpriv->stats.
 959                                       rx_rssi_percentage[rfpath] *
 960                                       (RX_SMOOTH_FACTOR - 1)) +
 961                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 962                                     (RX_SMOOTH_FACTOR);
 963
 964                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 965                                     rtlpriv->stats.rx_rssi_percentage[rfpath] +
 966                                     1;
 967                         } else {
 968                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 969                                     ((rtlpriv->stats.
 970                                       rx_rssi_percentage[rfpath] *
 971                                       (RX_SMOOTH_FACTOR - 1)) +
 972                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 973                                     (RX_SMOOTH_FACTOR);
 974                         }
 975                 }
 976         }
 977 }
 978
 979 static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw,
 980                                                struct rtl_stats *pstats)
 981 {
 982         struct rtl_priv *rtlpriv = rtl_priv(hw);
 983         int weighting = 0;
 984
 985         if (rtlpriv->stats.recv_signal_power == 0)
 986                 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
 987         if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
 988                 weighting = 5;
 989         else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
 990                 weighting = (-5);
 991         rtlpriv->stats.recv_signal_power =
 992             (rtlpriv->stats.recv_signal_power * 5 +
 993              pstats->recvsignalpower + weighting) / 6;
 994 }
 995
 996 static void _rtl92c_process_pwdb(struct ieee80211_hw *hw,
 997                 struct rtl_stats *pstats)
 998 {
 999         struct rtl_priv *rtlpriv = rtl_priv(hw);
1000         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1001         long undec_sm_pwdb = 0;
1002
1003         if (mac->opmode == NL80211_IFTYPE_ADHOC) {
1004                 return;
1005         } else {
1006                 undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
1007         }
1008         if (pstats->packet_toself || pstats->packet_beacon) {
1009                 if (undec_sm_pwdb < 0)
1010                         undec_sm_pwdb = pstats->rx_pwdb_all;
1011                 if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
1012                         undec_sm_pwdb = (((undec_sm_pwdb) *
1013                               (RX_SMOOTH_FACTOR - 1)) +
1014                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
1015                         undec_sm_pwdb += 1;
1016                 } else {
1017                         undec_sm_pwdb = (((undec_sm_pwdb) *
1018                               (RX_SMOOTH_FACTOR - 1)) +
1019                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
1020                 }
1021                 rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
1022                 _rtl92c_update_rxsignalstatistics(hw, pstats);
1023         }
1024 }
1025
1026 static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw,
1027                                              struct rtl_stats *pstats)
1028 {
1029         struct rtl_priv *rtlpriv = rtl_priv(hw);
1030         u32 last_evm = 0, n_stream, tmpval;
1031
1032         if (pstats->signalquality != 0) {
1033                 if (pstats->packet_toself || pstats->packet_beacon) {
1034                         if (rtlpriv->stats.LINK_Q.total_num++ >=
1035                             PHY_LINKQUALITY_SLID_WIN_MAX) {
1036                                 rtlpriv->stats.LINK_Q.total_num =
1037                                     PHY_LINKQUALITY_SLID_WIN_MAX;
1038                                 last_evm =
1039                                     rtlpriv->stats.LINK_Q.elements
1040                                     [rtlpriv->stats.LINK_Q.index];
1041                                 rtlpriv->stats.LINK_Q.total_val -=
1042                                     last_evm;
1043                         }
1044                         rtlpriv->stats.LINK_Q.total_val +=
1045                             pstats->signalquality;
1046                         rtlpriv->stats.LINK_Q.elements
1047                            [rtlpriv->stats.LINK_Q.index++] =
1048                             pstats->signalquality;
1049                         if (rtlpriv->stats.LINK_Q.index >=
1050                             PHY_LINKQUALITY_SLID_WIN_MAX)
1051                                 rtlpriv->stats.LINK_Q.index = 0;
1052                         tmpval = rtlpriv->stats.LINK_Q.total_val /
1053                             rtlpriv->stats.LINK_Q.total_num;
1054                         rtlpriv->stats.signal_quality = tmpval;
1055                         rtlpriv->stats.last_sigstrength_inpercent = tmpval;
1056                         for (n_stream = 0; n_stream < 2;
1057                              n_stream++) {
1058                                 if (pstats->RX_SIGQ[n_stream] != -1) {
1059                                         if (!rtlpriv->stats.RX_EVM[n_stream]) {
1060                                                 rtlpriv->stats.RX_EVM[n_stream]
1061                                                  = pstats->RX_SIGQ[n_stream];
1062                                         }
1063                                         rtlpriv->stats.RX_EVM[n_stream] =
1064                                             ((rtlpriv->stats.RX_EVM
1065                                             [n_stream] *
1066                                             (RX_SMOOTH_FACTOR - 1)) +
1067                                             (pstats->RX_SIGQ
1068                                             [n_stream] * 1)) /
1069                                             (RX_SMOOTH_FACTOR);
1070                                 }
1071                         }
1072                 }
1073         } else {
1074                 ;
1075         }
1076 }
1077
1078 static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw,
1079                                      u8 *buffer,
1080                                      struct rtl_stats *pcurrent_stats)
1081 {
1082         if (!pcurrent_stats->packet_matchbssid &&
1083             !pcurrent_stats->packet_beacon)
1084                 return;
1085         _rtl92c_process_ui_rssi(hw, pcurrent_stats);
1086         _rtl92c_process_pwdb(hw, pcurrent_stats);
1087         _rtl92c_process_LINK_Q(hw, pcurrent_stats);
1088 }
1089
1090 void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
1091                                                struct sk_buff *skb,
1092                                                struct rtl_stats *pstats,
1093                                                struct rx_desc_92c *pdesc,
1094                                                struct rx_fwinfo_92c *p_drvinfo)
1095 {
1096         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1097         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1098         struct ieee80211_hdr *hdr;
1099         u8 *tmp_buf;
1100         u8 *praddr;
1101         __le16 fc;
1102         u16 type, cpu_fc;
1103         bool packet_matchbssid, packet_toself, packet_beacon = false;
1104
1105         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
1106         hdr = (struct ieee80211_hdr *)tmp_buf;
1107         fc = hdr->frame_control;
1108         cpu_fc = le16_to_cpu(fc);
1109         type = WLAN_FC_GET_TYPE(fc);
1110         praddr = hdr->addr1;
1111         packet_matchbssid =
1112             ((IEEE80211_FTYPE_CTL != type) &&
1113              ether_addr_equal(mac->bssid,
1114                               (cpu_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
1115                               (cpu_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
1116                               hdr->addr3) &&
1117              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
1118
1119         packet_toself = packet_matchbssid &&
1120             ether_addr_equal(praddr, rtlefuse->dev_addr);
1121         if (ieee80211_is_beacon(fc))
1122                 packet_beacon = true;
1123         _rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
1124                                    packet_matchbssid, packet_toself,
1125                                    packet_beacon);
1126         _rtl92c_process_phyinfo(hw, tmp_buf, pstats);
1127 }