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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2010  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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  31
  32 #include <linux/module.h>
  33
  34 #include "../wifi.h"
  35 #include "../pci.h"
  36 #include "../usb.h"
  37 #include "../ps.h"
  38 #include "../cam.h"
  39 #include "reg.h"
  40 #include "def.h"
  41 #include "phy.h"
  42 #include "rf.h"
  43 #include "dm.h"
  44 #include "mac.h"
  45 #include "trx.h"
  46
  47 /* macro to shorten lines */
  48
  49 #define LINK_Q  ui_link_quality
  50 #define RX_EVM  rx_evm_percentage
  51 #define RX_SIGQ rx_mimo_signalquality
  52
  53
  54 void rtl92c_read_chip_version(struct ieee80211_hw *hw)
  55 {
  56         struct rtl_priv *rtlpriv = rtl_priv(hw);
  57         struct rtl_phy *rtlphy = &(rtlpriv->phy);
  58         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
  59         enum version_8192c chip_version = VERSION_UNKNOWN;
  60         u32 value32;
  61
  62         value32 = rtl_read_dword(rtlpriv, REG_SYS_CFG);
  63         if (value32 & TRP_VAUX_EN) {
  64                 chip_version = (value32 & TYPE_ID) ? VERSION_TEST_CHIP_92C :
  65                                VERSION_TEST_CHIP_88C;
  66         } else {
  67                 /* Normal mass production chip. */
  68                 chip_version = NORMAL_CHIP;
  69                 chip_version |= ((value32 & TYPE_ID) ? CHIP_92C : 0);
  70                 chip_version |= ((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : 0);
  71                 /* RTL8723 with BT function. */
  72                 chip_version |= ((value32 & BT_FUNC) ? CHIP_8723 : 0);
  73                 if (IS_VENDOR_UMC(chip_version))
  74                         chip_version |= ((value32 & CHIP_VER_RTL_MASK) ?
  75                                          CHIP_VENDOR_UMC_B_CUT : 0);
  76                 if (IS_92C_SERIAL(chip_version)) {
  77                         value32 = rtl_read_dword(rtlpriv, REG_HPON_FSM);
  78                         chip_version |= ((CHIP_BONDING_IDENTIFIER(value32) ==
  79                                  CHIP_BONDING_92C_1T2R) ? CHIP_92C_1T2R : 0);
  80                 } else if (IS_8723_SERIES(chip_version)) {
  81                         value32 = rtl_read_dword(rtlpriv, REG_GPIO_OUTSTS);
  82                         chip_version |= ((value32 & RF_RL_ID) ?
  83                                           CHIP_8723_DRV_REV : 0);
  84                 }
  85         }
  86         rtlhal->version  = (enum version_8192c)chip_version;
  87         pr_info("rtl8192cu: Chip version 0x%x\n", chip_version);
  88         switch (rtlhal->version) {
  89         case VERSION_NORMAL_TSMC_CHIP_92C_1T2R:
  90                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
  91                          "Chip Version ID: VERSION_B_CHIP_92C\n");
  92                 break;
  93         case VERSION_NORMAL_TSMC_CHIP_92C:
  94                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
  95                          "Chip Version ID: VERSION_NORMAL_TSMC_CHIP_92C\n");
  96                 break;
  97         case VERSION_NORMAL_TSMC_CHIP_88C:
  98                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
  99                          "Chip Version ID: VERSION_NORMAL_TSMC_CHIP_88C\n");
 100                 break;
 101         case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT:
 102                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 103                          "Chip Version ID: VERSION_NORMAL_UMC_CHIP_i92C_1T2R_A_CUT\n");
 104                 break;
 105         case VERSION_NORMAL_UMC_CHIP_92C_A_CUT:
 106                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 107                          "Chip Version ID: VERSION_NORMAL_UMC_CHIP_92C_A_CUT\n");
 108                 break;
 109         case VERSION_NORMAL_UMC_CHIP_88C_A_CUT:
 110                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 111                          "Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_A_CUT\n");
 112                 break;
 113         case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT:
 114                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 115                          "Chip Version ID: VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT\n");
 116                 break;
 117         case VERSION_NORMAL_UMC_CHIP_92C_B_CUT:
 118                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 119                          "Chip Version ID: VERSION_NORMAL_UMC_CHIP_92C_B_CUT\n");
 120                 break;
 121         case VERSION_NORMAL_UMC_CHIP_88C_B_CUT:
 122                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 123                          "Chip Version ID: VERSION_NORMAL_UMC_CHIP_88C_B_CUT\n");
 124                 break;
 125         case VERSION_NORMA_UMC_CHIP_8723_1T1R_A_CUT:
 126                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 127                          "Chip Version ID: VERSION_NORMA_UMC_CHIP_8723_1T1R_A_CUT\n");
 128                 break;
 129         case VERSION_NORMA_UMC_CHIP_8723_1T1R_B_CUT:
 130                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 131                          "Chip Version ID: VERSION_NORMA_UMC_CHIP_8723_1T1R_B_CUT\n");
 132                 break;
 133         case VERSION_TEST_CHIP_92C:
 134                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 135                          "Chip Version ID: VERSION_TEST_CHIP_92C\n");
 136                 break;
 137         case VERSION_TEST_CHIP_88C:
 138                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 139                          "Chip Version ID: VERSION_TEST_CHIP_88C\n");
 140                 break;
 141         default:
 142                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 143                          "Chip Version ID: ???????????????\n");
 144                 break;
 145         }
 146         if (IS_92C_SERIAL(rtlhal->version))
 147                 rtlphy->rf_type =
 148                          (IS_92C_1T2R(rtlhal->version)) ? RF_1T2R : RF_2T2R;
 149         else
 150                 rtlphy->rf_type = RF_1T1R;
 151         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 152                  "Chip RF Type: %s\n",
 153                  rtlphy->rf_type == RF_2T2R ? "RF_2T2R" : "RF_1T1R");
 154         if (get_rf_type(rtlphy) == RF_1T1R)
 155                 rtlpriv->dm.rfpath_rxenable[0] = true;
 156         else
 157                 rtlpriv->dm.rfpath_rxenable[0] =
 158                     rtlpriv->dm.rfpath_rxenable[1] = true;
 159         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "VersionID = 0x%4x\n",
 160                  rtlhal->version);
 161 }
 162
 163 /**
 164  * writeLLT - LLT table write access
 165  * @io: io callback
 166  * @address: LLT logical address.
 167  * @data: LLT data content
 168  *
 169  * Realtek hardware access function.
 170  *
 171  */
 172 bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data)
 173 {
 174         struct rtl_priv *rtlpriv = rtl_priv(hw);
 175         bool status = true;
 176         long count = 0;
 177         u32 value = _LLT_INIT_ADDR(address) |
 178             _LLT_INIT_DATA(data) | _LLT_OP(_LLT_WRITE_ACCESS);
 179
 180         rtl_write_dword(rtlpriv, REG_LLT_INIT, value);
 181         do {
 182                 value = rtl_read_dword(rtlpriv, REG_LLT_INIT);
 183                 if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value))
 184                         break;
 185                 if (count > POLLING_LLT_THRESHOLD) {
 186                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 187                                  "Failed to polling write LLT done at address %d! _LLT_OP_VALUE(%x)\n",
 188                                  address, _LLT_OP_VALUE(value));
 189                         status = false;
 190                         break;
 191                 }
 192         } while (++count);
 193         return status;
 194 }
 195 /**
 196  * rtl92c_init_LLT_table - Init LLT table
 197  * @io: io callback
 198  * @boundary:
 199  *
 200  * Realtek hardware access function.
 201  *
 202  */
 203 bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary)
 204 {
 205         bool rst = true;
 206         u32     i;
 207
 208         for (i = 0; i < (boundary - 1); i++) {
 209                 rst = rtl92c_llt_write(hw, i , i + 1);
 210                 if (true != rst) {
 211                         pr_err("===> %s #1 fail\n", __func__);
 212                         return rst;
 213                 }
 214         }
 215         /* end of list */
 216         rst = rtl92c_llt_write(hw, (boundary - 1), 0xFF);
 217         if (true != rst) {
 218                 pr_err("===> %s #2 fail\n", __func__);
 219                 return rst;
 220         }
 221         /* Make the other pages as ring buffer
 222          * This ring buffer is used as beacon buffer if we config this MAC
 223          *  as two MAC transfer.
 224          * Otherwise used as local loopback buffer.
 225          */
 226         for (i = boundary; i < LLT_LAST_ENTRY_OF_TX_PKT_BUFFER; i++) {
 227                 rst = rtl92c_llt_write(hw, i, (i + 1));
 228                 if (true != rst) {
 229                         pr_err("===> %s #3 fail\n", __func__);
 230                         return rst;
 231                 }
 232         }
 233         /* Let last entry point to the start entry of ring buffer */
 234         rst = rtl92c_llt_write(hw, LLT_LAST_ENTRY_OF_TX_PKT_BUFFER, boundary);
 235         if (true != rst) {
 236                 pr_err("===> %s #4 fail\n", __func__);
 237                 return rst;
 238         }
 239         return rst;
 240 }
 241 void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index,
 242                      u8 *p_macaddr, bool is_group, u8 enc_algo,
 243                      bool is_wepkey, bool clear_all)
 244 {
 245         struct rtl_priv *rtlpriv = rtl_priv(hw);
 246         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 247         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 248         u8 *macaddr = p_macaddr;
 249         u32 entry_id = 0;
 250         bool is_pairwise = false;
 251         static u8 cam_const_addr[4][6] = {
 252                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
 253                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
 254                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
 255                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
 256         };
 257         static u8 cam_const_broad[] = {
 258                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 259         };
 260
 261         if (clear_all) {
 262                 u8 idx = 0;
 263                 u8 cam_offset = 0;
 264                 u8 clear_number = 5;
 265
 266                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "clear_all\n");
 267                 for (idx = 0; idx < clear_number; idx++) {
 268                         rtl_cam_mark_invalid(hw, cam_offset + idx);
 269                         rtl_cam_empty_entry(hw, cam_offset + idx);
 270                         if (idx < 5) {
 271                                 memset(rtlpriv->sec.key_buf[idx], 0,
 272                                        MAX_KEY_LEN);
 273                                 rtlpriv->sec.key_len[idx] = 0;
 274                         }
 275                 }
 276         } else {
 277                 switch (enc_algo) {
 278                 case WEP40_ENCRYPTION:
 279                         enc_algo = CAM_WEP40;
 280                         break;
 281                 case WEP104_ENCRYPTION:
 282                         enc_algo = CAM_WEP104;
 283                         break;
 284                 case TKIP_ENCRYPTION:
 285                         enc_algo = CAM_TKIP;
 286                         break;
 287                 case AESCCMP_ENCRYPTION:
 288                         enc_algo = CAM_AES;
 289                         break;
 290                 default:
 291                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 292                                  "illegal switch case\n");
 293                         enc_algo = CAM_TKIP;
 294                         break;
 295                 }
 296                 if (is_wepkey || rtlpriv->sec.use_defaultkey) {
 297                         macaddr = cam_const_addr[key_index];
 298                         entry_id = key_index;
 299                 } else {
 300                         if (is_group) {
 301                                 macaddr = cam_const_broad;
 302                                 entry_id = key_index;
 303                         } else {
 304                                 key_index = PAIRWISE_KEYIDX;
 305                                 entry_id = CAM_PAIRWISE_KEY_POSITION;
 306                                 is_pairwise = true;
 307                         }
 308                 }
 309                 if (rtlpriv->sec.key_len[key_index] == 0) {
 310                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 311                                  "delete one entry\n");
 312                         rtl_cam_delete_one_entry(hw, p_macaddr, entry_id);
 313                 } else {
 314                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 315                                  "The insert KEY length is %d\n",
 316                                  rtlpriv->sec.key_len[PAIRWISE_KEYIDX]);
 317                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 318                                  "The insert KEY is %x %x\n",
 319                                  rtlpriv->sec.key_buf[0][0],
 320                                  rtlpriv->sec.key_buf[0][1]);
 321                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 322                                  "add one entry\n");
 323                         if (is_pairwise) {
 324                                 RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD,
 325                                               "Pairwise Key content",
 326                                               rtlpriv->sec.pairwise_key,
 327                                               rtlpriv->sec.
 328                                               key_len[PAIRWISE_KEYIDX]);
 329                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 330                                          "set Pairwise key\n");
 331
 332                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 333                                                 entry_id, enc_algo,
 334                                                 CAM_CONFIG_NO_USEDK,
 335                                                 rtlpriv->sec.
 336                                                 key_buf[key_index]);
 337                         } else {
 338                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 339                                          "set group key\n");
 340                                 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 341                                         rtl_cam_add_one_entry(hw,
 342                                                 rtlefuse->dev_addr,
 343                                                 PAIRWISE_KEYIDX,
 344                                                 CAM_PAIRWISE_KEY_POSITION,
 345                                                 enc_algo,
 346                                                 CAM_CONFIG_NO_USEDK,
 347                                                 rtlpriv->sec.key_buf
 348                                                 [entry_id]);
 349                                 }
 350                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 351                                                 entry_id, enc_algo,
 352                                                 CAM_CONFIG_NO_USEDK,
 353                                                 rtlpriv->sec.key_buf[entry_id]);
 354                         }
 355                 }
 356         }
 357 }
 358
 359 u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw)
 360 {
 361         struct rtl_priv *rtlpriv = rtl_priv(hw);
 362
 363         return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS);
 364 }
 365
 366 void rtl92c_enable_interrupt(struct ieee80211_hw *hw)
 367 {
 368         struct rtl_priv *rtlpriv = rtl_priv(hw);
 369         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 370         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 371         struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
 372
 373         if (IS_HARDWARE_TYPE_8192CE(rtlhal)) {
 374                 rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] &
 375                                 0xFFFFFFFF);
 376                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] &
 377                                 0xFFFFFFFF);
 378         } else {
 379                 rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] &
 380                                 0xFFFFFFFF);
 381                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] &
 382                                 0xFFFFFFFF);
 383         }
 384 }
 385
 386 void rtl92c_init_interrupt(struct ieee80211_hw *hw)
 387 {
 388          rtl92c_enable_interrupt(hw);
 389 }
 390
 391 void rtl92c_disable_interrupt(struct ieee80211_hw *hw)
 392 {
 393         struct rtl_priv *rtlpriv = rtl_priv(hw);
 394
 395         rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
 396         rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
 397 }
 398
 399 void rtl92c_set_qos(struct ieee80211_hw *hw, int aci)
 400 {
 401         struct rtl_priv *rtlpriv = rtl_priv(hw);
 402         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 403         u32 u4b_ac_param;
 404
 405         rtl92c_dm_init_edca_turbo(hw);
 406         u4b_ac_param = (u32) mac->ac[aci].aifs;
 407         u4b_ac_param |=
 408             ((u32) le16_to_cpu(mac->ac[aci].cw_min) & 0xF) <<
 409             AC_PARAM_ECW_MIN_OFFSET;
 410         u4b_ac_param |=
 411             ((u32) le16_to_cpu(mac->ac[aci].cw_max) & 0xF) <<
 412             AC_PARAM_ECW_MAX_OFFSET;
 413         u4b_ac_param |= (u32) le16_to_cpu(mac->ac[aci].tx_op) <<
 414                          AC_PARAM_TXOP_OFFSET;
 415         RT_TRACE(rtlpriv, COMP_QOS, DBG_LOUD, "queue:%x, ac_param:%x\n",
 416                  aci, u4b_ac_param);
 417         switch (aci) {
 418         case AC1_BK:
 419                 rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, u4b_ac_param);
 420                 break;
 421         case AC0_BE:
 422                 rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, u4b_ac_param);
 423                 break;
 424         case AC2_VI:
 425                 rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, u4b_ac_param);
 426                 break;
 427         case AC3_VO:
 428                 rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, u4b_ac_param);
 429                 break;
 430         default:
 431                 RT_ASSERT(false, "invalid aci: %d !\n", aci);
 432                 break;
 433         }
 434 }
 435
 436 /*-------------------------------------------------------------------------
 437  * HW MAC Address
 438  *-------------------------------------------------------------------------*/
 439 void rtl92c_set_mac_addr(struct ieee80211_hw *hw, const u8 *addr)
 440 {
 441         u32 i;
 442         struct rtl_priv *rtlpriv = rtl_priv(hw);
 443
 444         for (i = 0 ; i < ETH_ALEN ; i++)
 445                 rtl_write_byte(rtlpriv, (REG_MACID + i), *(addr+i));
 446
 447         RT_TRACE(rtlpriv, COMP_CMD, DBG_DMESG,
 448                  "MAC Address: %02X-%02X-%02X-%02X-%02X-%02X\n",
 449                  rtl_read_byte(rtlpriv, REG_MACID),
 450                  rtl_read_byte(rtlpriv, REG_MACID+1),
 451                  rtl_read_byte(rtlpriv, REG_MACID+2),
 452                  rtl_read_byte(rtlpriv, REG_MACID+3),
 453                  rtl_read_byte(rtlpriv, REG_MACID+4),
 454                  rtl_read_byte(rtlpriv, REG_MACID+5));
 455 }
 456
 457 void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size)
 458 {
 459         struct rtl_priv *rtlpriv = rtl_priv(hw);
 460         rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size);
 461 }
 462
 463 int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type)
 464 {
 465         u8 value;
 466         struct rtl_priv *rtlpriv = rtl_priv(hw);
 467
 468         switch (type) {
 469         case NL80211_IFTYPE_UNSPECIFIED:
 470                 value = NT_NO_LINK;
 471                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 472                          "Set Network type to NO LINK!\n");
 473                 break;
 474         case NL80211_IFTYPE_ADHOC:
 475                 value = NT_LINK_AD_HOC;
 476                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 477                          "Set Network type to Ad Hoc!\n");
 478                 break;
 479         case NL80211_IFTYPE_STATION:
 480                 value = NT_LINK_AP;
 481                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 482                          "Set Network type to STA!\n");
 483                 break;
 484         case NL80211_IFTYPE_AP:
 485                 value = NT_AS_AP;
 486                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 487                          "Set Network type to AP!\n");
 488                 break;
 489         default:
 490                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 491                          "Network type %d not supported!\n", type);
 492                 return -EOPNOTSUPP;
 493         }
 494         rtl_write_byte(rtlpriv, (REG_CR + 2), value);
 495         return 0;
 496 }
 497
 498 void rtl92c_init_network_type(struct ieee80211_hw *hw)
 499 {
 500         rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED);
 501 }
 502
 503 void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw)
 504 {
 505         u16     value16;
 506         u32     value32;
 507         struct rtl_priv *rtlpriv = rtl_priv(hw);
 508
 509         /* Response Rate Set */
 510         value32 = rtl_read_dword(rtlpriv, REG_RRSR);
 511         value32 &= ~RATE_BITMAP_ALL;
 512         value32 |= RATE_RRSR_CCK_ONLY_1M;
 513         rtl_write_dword(rtlpriv, REG_RRSR, value32);
 514         /* SIFS (used in NAV) */
 515         value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10);
 516         rtl_write_word(rtlpriv,  REG_SPEC_SIFS, value16);
 517         /* Retry Limit */
 518         value16 = _LRL(0x30) | _SRL(0x30);
 519         rtl_write_dword(rtlpriv,  REG_RL, value16);
 520 }
 521
 522 void rtl92c_init_rate_fallback(struct ieee80211_hw *hw)
 523 {
 524         struct rtl_priv *rtlpriv = rtl_priv(hw);
 525
 526         /* Set Data Auto Rate Fallback Retry Count register. */
 527         rtl_write_dword(rtlpriv,  REG_DARFRC, 0x00000000);
 528         rtl_write_dword(rtlpriv,  REG_DARFRC+4, 0x10080404);
 529         rtl_write_dword(rtlpriv,  REG_RARFRC, 0x04030201);
 530         rtl_write_dword(rtlpriv,  REG_RARFRC+4, 0x08070605);
 531 }
 532
 533 static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 534                                 u8 ctx_sifs)
 535 {
 536         struct rtl_priv *rtlpriv = rtl_priv(hw);
 537
 538         rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs);
 539         rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs);
 540 }
 541
 542 static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 543                                  u8 ctx_sifs)
 544 {
 545         struct rtl_priv *rtlpriv = rtl_priv(hw);
 546
 547         rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs);
 548         rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs);
 549 }
 550
 551 void rtl92c_init_edca_param(struct ieee80211_hw *hw,
 552                             u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs)
 553 {
 554         /* sequence: VO, VI, BE, BK ==> the same as 92C hardware design.
 555          * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function.
 556          */
 557         u32 value;
 558         struct rtl_priv *rtlpriv = rtl_priv(hw);
 559
 560         value = (u32)aifs;
 561         value |= ((u32)cw_min & 0xF) << 8;
 562         value |= ((u32)cw_max & 0xF) << 12;
 563         value |= (u32)txop << 16;
 564         /* 92C hardware register sequence is the same as queue number. */
 565         rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value);
 566 }
 567
 568 void rtl92c_init_edca(struct ieee80211_hw *hw)
 569 {
 570         u16 value16;
 571         struct rtl_priv *rtlpriv = rtl_priv(hw);
 572
 573         /* disable EDCCA count down, to reduce collison and retry */
 574         value16 = rtl_read_word(rtlpriv, REG_RD_CTRL);
 575         value16 |= DIS_EDCA_CNT_DWN;
 576         rtl_write_word(rtlpriv, REG_RD_CTRL, value16);
 577         /* Update SIFS timing.  ??????????
 578          * pHalData->SifsTime = 0x0e0e0a0a; */
 579         rtl92c_set_cck_sifs(hw, 0xa, 0xa);
 580         rtl92c_set_ofdm_sifs(hw, 0xe, 0xe);
 581         /* Set CCK/OFDM SIFS to be 10us. */
 582         rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a);
 583         rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010);
 584         rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204);
 585         rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004);
 586         /* TXOP */
 587         rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B);
 588         rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F);
 589         rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324);
 590         rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226);
 591         /* PIFS */
 592         rtl_write_byte(rtlpriv, REG_PIFS, 0x1C);
 593         /* AGGR BREAK TIME Register */
 594         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 595         rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040);
 596         rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02);
 597         rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02);
 598 }
 599
 600 void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw)
 601 {
 602         struct rtl_priv *rtlpriv = rtl_priv(hw);
 603
 604         rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631);
 605         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 606         /* init AMPDU aggregation number, tuning for Tx's TP, */
 607         rtl_write_word(rtlpriv, 0x4CA, 0x0708);
 608 }
 609
 610 void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw, bool infra_mode)
 611 {
 612         struct rtl_priv *rtlpriv = rtl_priv(hw);
 613
 614         rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF);
 615 }
 616
 617 void rtl92c_init_rdg_setting(struct ieee80211_hw *hw)
 618 {
 619         struct rtl_priv *rtlpriv = rtl_priv(hw);
 620
 621         rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF);
 622         rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200);
 623         rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05);
 624 }
 625
 626 void rtl92c_init_retry_function(struct ieee80211_hw *hw)
 627 {
 628         u8      value8;
 629         struct rtl_priv *rtlpriv = rtl_priv(hw);
 630
 631         value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL);
 632         value8 |= EN_AMPDU_RTY_NEW;
 633         rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8);
 634         /* Set ACK timeout */
 635         rtl_write_byte(rtlpriv, REG_ACKTO, 0x40);
 636 }
 637
 638 void rtl92c_init_beacon_parameters(struct ieee80211_hw *hw,
 639                                    enum version_8192c version)
 640 {
 641         struct rtl_priv *rtlpriv = rtl_priv(hw);
 642         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 643
 644         rtl_write_word(rtlpriv, REG_TBTT_PROHIBIT, 0x6404);/* ms */
 645         rtl_write_byte(rtlpriv, REG_DRVERLYINT, DRIVER_EARLY_INT_TIME);/*ms*/
 646         rtl_write_byte(rtlpriv, REG_BCNDMATIM, BCN_DMA_ATIME_INT_TIME);
 647         if (IS_NORMAL_CHIP(rtlhal->version))
 648                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x660F);
 649         else
 650                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x66FF);
 651 }
 652
 653 void rtl92c_disable_fast_edca(struct ieee80211_hw *hw)
 654 {
 655         struct rtl_priv *rtlpriv = rtl_priv(hw);
 656
 657         rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0);
 658 }
 659
 660 void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T)
 661 {
 662         struct rtl_priv *rtlpriv = rtl_priv(hw);
 663         u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T;
 664
 665         rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value);
 666 }
 667
 668 u16 rtl92c_get_mgt_filter(struct ieee80211_hw *hw)
 669 {
 670         struct rtl_priv *rtlpriv = rtl_priv(hw);
 671
 672         return rtl_read_word(rtlpriv, REG_RXFLTMAP0);
 673 }
 674
 675 void rtl92c_set_mgt_filter(struct ieee80211_hw *hw, u16 filter)
 676 {
 677         struct rtl_priv *rtlpriv = rtl_priv(hw);
 678
 679         rtl_write_word(rtlpriv, REG_RXFLTMAP0, filter);
 680 }
 681
 682 u16 rtl92c_get_ctrl_filter(struct ieee80211_hw *hw)
 683 {
 684         struct rtl_priv *rtlpriv = rtl_priv(hw);
 685
 686         return rtl_read_word(rtlpriv, REG_RXFLTMAP1);
 687 }
 688
 689 void rtl92c_set_ctrl_filter(struct ieee80211_hw *hw, u16 filter)
 690 {
 691         struct rtl_priv *rtlpriv = rtl_priv(hw);
 692
 693         rtl_write_word(rtlpriv, REG_RXFLTMAP1, filter);
 694 }
 695
 696 u16 rtl92c_get_data_filter(struct ieee80211_hw *hw)
 697 {
 698         struct rtl_priv *rtlpriv = rtl_priv(hw);
 699
 700         return rtl_read_word(rtlpriv,  REG_RXFLTMAP2);
 701 }
 702
 703 void rtl92c_set_data_filter(struct ieee80211_hw *hw, u16 filter)
 704 {
 705         struct rtl_priv *rtlpriv = rtl_priv(hw);
 706
 707         rtl_write_word(rtlpriv, REG_RXFLTMAP2, filter);
 708 }
 709 /*==============================================================*/
 710
 711 static u8 _rtl92c_query_rxpwrpercentage(char antpower)
 712 {
 713         if ((antpower <= -100) || (antpower >= 20))
 714                 return 0;
 715         else if (antpower >= 0)
 716                 return 100;
 717         else
 718                 return 100 + antpower;
 719 }
 720
 721 static u8 _rtl92c_evm_db_to_percentage(char value)
 722 {
 723         char ret_val;
 724
 725         ret_val = value;
 726         if (ret_val >= 0)
 727                 ret_val = 0;
 728         if (ret_val <= -33)
 729                 ret_val = -33;
 730         ret_val = 0 - ret_val;
 731         ret_val *= 3;
 732         if (ret_val == 99)
 733                 ret_val = 100;
 734         return ret_val;
 735 }
 736
 737 static long _rtl92c_translate_todbm(struct ieee80211_hw *hw,
 738                                      u8 signal_strength_index)
 739 {
 740         long signal_power;
 741
 742         signal_power = (long)((signal_strength_index + 1) >> 1);
 743         signal_power -= 95;
 744         return signal_power;
 745 }
 746
 747 static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
 748                 long currsig)
 749 {
 750         long retsig;
 751
 752         if (currsig >= 61 && currsig <= 100)
 753                 retsig = 90 + ((currsig - 60) / 4);
 754         else if (currsig >= 41 && currsig <= 60)
 755                 retsig = 78 + ((currsig - 40) / 2);
 756         else if (currsig >= 31 && currsig <= 40)
 757                 retsig = 66 + (currsig - 30);
 758         else if (currsig >= 21 && currsig <= 30)
 759                 retsig = 54 + (currsig - 20);
 760         else if (currsig >= 5 && currsig <= 20)
 761                 retsig = 42 + (((currsig - 5) * 2) / 3);
 762         else if (currsig == 4)
 763                 retsig = 36;
 764         else if (currsig == 3)
 765                 retsig = 27;
 766         else if (currsig == 2)
 767                 retsig = 18;
 768         else if (currsig == 1)
 769                 retsig = 9;
 770         else
 771                 retsig = currsig;
 772         return retsig;
 773 }
 774
 775 static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 776                                       struct rtl_stats *pstats,
 777                                       struct rx_desc_92c *pdesc,
 778                                       struct rx_fwinfo_92c *p_drvinfo,
 779                                       bool packet_match_bssid,
 780                                       bool packet_toself,
 781                                       bool packet_beacon)
 782 {
 783         struct rtl_priv *rtlpriv = rtl_priv(hw);
 784         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 785         struct phy_sts_cck_8192s_t *cck_buf;
 786         s8 rx_pwr_all = 0, rx_pwr[4];
 787         u8 rf_rx_num = 0, evm, pwdb_all;
 788         u8 i, max_spatial_stream;
 789         u32 rssi, total_rssi = 0;
 790         bool in_powersavemode = false;
 791         bool is_cck_rate;
 792
 793         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
 794         pstats->packet_matchbssid = packet_match_bssid;
 795         pstats->packet_toself = packet_toself;
 796         pstats->is_cck = is_cck_rate;
 797         pstats->packet_beacon = packet_beacon;
 798         pstats->is_cck = is_cck_rate;
 799         pstats->RX_SIGQ[0] = -1;
 800         pstats->RX_SIGQ[1] = -1;
 801         if (is_cck_rate) {
 802                 u8 report, cck_highpwr;
 803                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 804                 if (!in_powersavemode)
 805                         cck_highpwr = rtlphy->cck_high_power;
 806                 else
 807                         cck_highpwr = false;
 808                 if (!cck_highpwr) {
 809                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 810                         report = cck_buf->cck_agc_rpt & 0xc0;
 811                         report = report >> 6;
 812                         switch (report) {
 813                         case 0x3:
 814                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 815                                 break;
 816                         case 0x2:
 817                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 818                                 break;
 819                         case 0x1:
 820                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 821                                 break;
 822                         case 0x0:
 823                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 824                                 break;
 825                         }
 826                 } else {
 827                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 828                         report = p_drvinfo->cfosho[0] & 0x60;
 829                         report = report >> 5;
 830                         switch (report) {
 831                         case 0x3:
 832                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 833                                 break;
 834                         case 0x2:
 835                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 836                                 break;
 837                         case 0x1:
 838                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 839                                 break;
 840                         case 0x0:
 841                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 842                                 break;
 843                         }
 844                 }
 845                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 846                 pstats->rx_pwdb_all = pwdb_all;
 847                 pstats->recvsignalpower = rx_pwr_all;
 848                 if (packet_match_bssid) {
 849                         u8 sq;
 850                         if (pstats->rx_pwdb_all > 40)
 851                                 sq = 100;
 852                         else {
 853                                 sq = cck_buf->sq_rpt;
 854                                 if (sq > 64)
 855                                         sq = 0;
 856                                 else if (sq < 20)
 857                                         sq = 100;
 858                                 else
 859                                         sq = ((64 - sq) * 100) / 44;
 860                         }
 861                         pstats->signalquality = sq;
 862                         pstats->RX_SIGQ[0] = sq;
 863                         pstats->RX_SIGQ[1] = -1;
 864                 }
 865         } else {
 866                 rtlpriv->dm.rfpath_rxenable[0] =
 867                     rtlpriv->dm.rfpath_rxenable[1] = true;
 868                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 869                         if (rtlpriv->dm.rfpath_rxenable[i])
 870                                 rf_rx_num++;
 871                         rx_pwr[i] =
 872                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 873                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 874                         total_rssi += rssi;
 875                         rtlpriv->stats.rx_snr_db[i] =
 876                             (long)(p_drvinfo->rxsnr[i] / 2);
 877
 878                         if (packet_match_bssid)
 879                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 880                 }
 881                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 882                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 883                 pstats->rx_pwdb_all = pwdb_all;
 884                 pstats->rxpower = rx_pwr_all;
 885                 pstats->recvsignalpower = rx_pwr_all;
 886                 if (GET_RX_DESC_RX_MCS(pdesc) &&
 887                     GET_RX_DESC_RX_MCS(pdesc) >= DESC92_RATEMCS8 &&
 888                     GET_RX_DESC_RX_MCS(pdesc) <= DESC92_RATEMCS15)
 889                         max_spatial_stream = 2;
 890                 else
 891                         max_spatial_stream = 1;
 892                 for (i = 0; i < max_spatial_stream; i++) {
 893                         evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 894                         if (packet_match_bssid) {
 895                                 if (i == 0)
 896                                         pstats->signalquality =
 897                                             (u8) (evm & 0xff);
 898                                 pstats->RX_SIGQ[i] =
 899                                     (u8) (evm & 0xff);
 900                         }
 901                 }
 902         }
 903         if (is_cck_rate)
 904                 pstats->signalstrength =
 905                     (u8) (_rtl92c_signal_scale_mapping(hw, pwdb_all));
 906         else if (rf_rx_num != 0)
 907                 pstats->signalstrength =
 908                     (u8) (_rtl92c_signal_scale_mapping
 909                           (hw, total_rssi /= rf_rx_num));
 910 }
 911
 912 static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw,
 913                 struct rtl_stats *pstats)
 914 {
 915         struct rtl_priv *rtlpriv = rtl_priv(hw);
 916         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 917         u8 rfpath;
 918         u32 last_rssi, tmpval;
 919
 920         if (pstats->packet_toself || pstats->packet_beacon) {
 921                 rtlpriv->stats.rssi_calculate_cnt++;
 922                 if (rtlpriv->stats.ui_rssi.total_num++ >=
 923                     PHY_RSSI_SLID_WIN_MAX) {
 924                         rtlpriv->stats.ui_rssi.total_num =
 925                             PHY_RSSI_SLID_WIN_MAX;
 926                         last_rssi =
 927                             rtlpriv->stats.ui_rssi.elements[rtlpriv->
 928                                                            stats.ui_rssi.index];
 929                         rtlpriv->stats.ui_rssi.total_val -= last_rssi;
 930                 }
 931                 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
 932                 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
 933                                         index++] = pstats->signalstrength;
 934                 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
 935                         rtlpriv->stats.ui_rssi.index = 0;
 936                 tmpval = rtlpriv->stats.ui_rssi.total_val /
 937                     rtlpriv->stats.ui_rssi.total_num;
 938                 rtlpriv->stats.signal_strength =
 939                     _rtl92c_translate_todbm(hw, (u8) tmpval);
 940                 pstats->rssi = rtlpriv->stats.signal_strength;
 941         }
 942         if (!pstats->is_cck && pstats->packet_toself) {
 943                 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
 944                      rfpath++) {
 945                         if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
 946                                 continue;
 947                         if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
 948                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 949                                     pstats->rx_mimo_signalstrength[rfpath];
 950                         }
 951                         if (pstats->rx_mimo_signalstrength[rfpath] >
 952                             rtlpriv->stats.rx_rssi_percentage[rfpath]) {
 953                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 954                                     ((rtlpriv->stats.
 955                                       rx_rssi_percentage[rfpath] *
 956                                       (RX_SMOOTH_FACTOR - 1)) +
 957                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 958                                     (RX_SMOOTH_FACTOR);
 959
 960                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 961                                     rtlpriv->stats.rx_rssi_percentage[rfpath] +
 962                                     1;
 963                         } else {
 964                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 965                                     ((rtlpriv->stats.
 966                                       rx_rssi_percentage[rfpath] *
 967                                       (RX_SMOOTH_FACTOR - 1)) +
 968                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 969                                     (RX_SMOOTH_FACTOR);
 970                         }
 971                 }
 972         }
 973 }
 974
 975 static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw,
 976                                                struct rtl_stats *pstats)
 977 {
 978         struct rtl_priv *rtlpriv = rtl_priv(hw);
 979         int weighting = 0;
 980
 981         if (rtlpriv->stats.recv_signal_power == 0)
 982                 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
 983         if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
 984                 weighting = 5;
 985         else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
 986                 weighting = (-5);
 987         rtlpriv->stats.recv_signal_power =
 988             (rtlpriv->stats.recv_signal_power * 5 +
 989              pstats->recvsignalpower + weighting) / 6;
 990 }
 991
 992 static void _rtl92c_process_pwdb(struct ieee80211_hw *hw,
 993                 struct rtl_stats *pstats)
 994 {
 995         struct rtl_priv *rtlpriv = rtl_priv(hw);
 996         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 997         long undecorated_smoothed_pwdb = 0;
 998
 999         if (mac->opmode == NL80211_IFTYPE_ADHOC) {
1000                 return;
1001         } else {
1002                 undecorated_smoothed_pwdb =
1003                     rtlpriv->dm.undecorated_smoothed_pwdb;
1004         }
1005         if (pstats->packet_toself || pstats->packet_beacon) {
1006                 if (undecorated_smoothed_pwdb < 0)
1007                         undecorated_smoothed_pwdb = pstats->rx_pwdb_all;
1008                 if (pstats->rx_pwdb_all > (u32) undecorated_smoothed_pwdb) {
1009                         undecorated_smoothed_pwdb =
1010                             (((undecorated_smoothed_pwdb) *
1011                               (RX_SMOOTH_FACTOR - 1)) +
1012                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
1013                         undecorated_smoothed_pwdb = undecorated_smoothed_pwdb
1014                             + 1;
1015                 } else {
1016                         undecorated_smoothed_pwdb =
1017                             (((undecorated_smoothed_pwdb) *
1018                               (RX_SMOOTH_FACTOR - 1)) +
1019                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
1020                 }
1021                 rtlpriv->dm.undecorated_smoothed_pwdb =
1022                     undecorated_smoothed_pwdb;
1023                 _rtl92c_update_rxsignalstatistics(hw, pstats);
1024         }
1025 }
1026
1027 static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw,
1028                                              struct rtl_stats *pstats)
1029 {
1030         struct rtl_priv *rtlpriv = rtl_priv(hw);
1031         u32 last_evm = 0, n_stream, tmpval;
1032
1033         if (pstats->signalquality != 0) {
1034                 if (pstats->packet_toself || pstats->packet_beacon) {
1035                         if (rtlpriv->stats.LINK_Q.total_num++ >=
1036                             PHY_LINKQUALITY_SLID_WIN_MAX) {
1037                                 rtlpriv->stats.LINK_Q.total_num =
1038                                     PHY_LINKQUALITY_SLID_WIN_MAX;
1039                                 last_evm =
1040                                     rtlpriv->stats.LINK_Q.elements
1041                                     [rtlpriv->stats.LINK_Q.index];
1042                                 rtlpriv->stats.LINK_Q.total_val -=
1043                                     last_evm;
1044                         }
1045                         rtlpriv->stats.LINK_Q.total_val +=
1046                             pstats->signalquality;
1047                         rtlpriv->stats.LINK_Q.elements
1048                            [rtlpriv->stats.LINK_Q.index++] =
1049                             pstats->signalquality;
1050                         if (rtlpriv->stats.LINK_Q.index >=
1051                             PHY_LINKQUALITY_SLID_WIN_MAX)
1052                                 rtlpriv->stats.LINK_Q.index = 0;
1053                         tmpval = rtlpriv->stats.LINK_Q.total_val /
1054                             rtlpriv->stats.LINK_Q.total_num;
1055                         rtlpriv->stats.signal_quality = tmpval;
1056                         rtlpriv->stats.last_sigstrength_inpercent = tmpval;
1057                         for (n_stream = 0; n_stream < 2;
1058                              n_stream++) {
1059                                 if (pstats->RX_SIGQ[n_stream] != -1) {
1060                                         if (!rtlpriv->stats.RX_EVM[n_stream]) {
1061                                                 rtlpriv->stats.RX_EVM[n_stream]
1062                                                  = pstats->RX_SIGQ[n_stream];
1063                                         }
1064                                         rtlpriv->stats.RX_EVM[n_stream] =
1065                                             ((rtlpriv->stats.RX_EVM
1066                                             [n_stream] *
1067                                             (RX_SMOOTH_FACTOR - 1)) +
1068                                             (pstats->RX_SIGQ
1069                                             [n_stream] * 1)) /
1070                                             (RX_SMOOTH_FACTOR);
1071                                 }
1072                         }
1073                 }
1074         } else {
1075                 ;
1076         }
1077 }
1078
1079 static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw,
1080                                      u8 *buffer,
1081                                      struct rtl_stats *pcurrent_stats)
1082 {
1083         if (!pcurrent_stats->packet_matchbssid &&
1084             !pcurrent_stats->packet_beacon)
1085                 return;
1086         _rtl92c_process_ui_rssi(hw, pcurrent_stats);
1087         _rtl92c_process_pwdb(hw, pcurrent_stats);
1088         _rtl92c_process_LINK_Q(hw, pcurrent_stats);
1089 }
1090
1091 void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
1092                                                struct sk_buff *skb,
1093                                                struct rtl_stats *pstats,
1094                                                struct rx_desc_92c *pdesc,
1095                                                struct rx_fwinfo_92c *p_drvinfo)
1096 {
1097         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1098         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1099         struct ieee80211_hdr *hdr;
1100         u8 *tmp_buf;
1101         u8 *praddr;
1102         __le16 fc;
1103         u16 type, cpu_fc;
1104         bool packet_matchbssid, packet_toself, packet_beacon;
1105
1106         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
1107         hdr = (struct ieee80211_hdr *)tmp_buf;
1108         fc = hdr->frame_control;
1109         cpu_fc = le16_to_cpu(fc);
1110         type = WLAN_FC_GET_TYPE(fc);
1111         praddr = hdr->addr1;
1112         packet_matchbssid =
1113             ((IEEE80211_FTYPE_CTL != type) &&
1114              (!compare_ether_addr(mac->bssid,
1115                           (cpu_fc & IEEE80211_FCTL_TODS) ?
1116                           hdr->addr1 : (cpu_fc & IEEE80211_FCTL_FROMDS) ?
1117                           hdr->addr2 : hdr->addr3)) &&
1118              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
1119
1120         packet_toself = packet_matchbssid &&
1121             (!compare_ether_addr(praddr, rtlefuse->dev_addr));
1122         if (ieee80211_is_beacon(fc))
1123                 packet_beacon = true;
1124         _rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
1125                                    packet_matchbssid, packet_toself,
1126                                    packet_beacon);
1127         _rtl92c_process_phyinfo(hw, tmp_buf, pstats);
1128 }