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         switch (rtlhal->version) {
  88         case VERSION_NORMAL_TSMC_CHIP_92C_1T2R:
  89                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
  90                  ("Chip Version ID: VERSION_B_CHIP_92C.\n"));
  91                 break;
  92         case VERSION_NORMAL_TSMC_CHIP_92C:
  93                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
  94                         ("Chip Version ID: VERSION_NORMAL_TSMC_CHIP_92C.\n"));
  95                 break;
  96         case VERSION_NORMAL_TSMC_CHIP_88C:
  97                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
  98                         ("Chip Version ID: VERSION_NORMAL_TSMC_CHIP_88C.\n"));
  99                 break;
 100         case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT:
 101                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 102                         ("Chip Version ID: VERSION_NORMAL_UMC_CHIP_i"
 103                         "92C_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_"
 108                         "92C_A_CUT.\n"));
 109                 break;
 110         case VERSION_NORMAL_UMC_CHIP_88C_A_CUT:
 111                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 112                         ("Chip Version ID: VERSION_NORMAL_UMC_CHIP"
 113                         "_88C_A_CUT.\n"));
 114                 break;
 115         case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT:
 116                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 117                         ("Chip Version ID: VERSION_NORMAL_UMC_CHIP"
 118                         "_92C_1T2R_B_CUT.\n"));
 119                 break;
 120         case VERSION_NORMAL_UMC_CHIP_92C_B_CUT:
 121                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 122                         ("Chip Version ID: VERSION_NORMAL_UMC_CHIP"
 123                         "_92C_B_CUT.\n"));
 124                 break;
 125         case VERSION_NORMAL_UMC_CHIP_88C_B_CUT:
 126                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 127                         ("Chip Version ID: VERSION_NORMAL_UMC_CHIP"
 128                         "_88C_B_CUT.\n"));
 129                 break;
 130         case VERSION_NORMA_UMC_CHIP_8723_1T1R_A_CUT:
 131                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 132                         ("Chip Version ID: VERSION_NORMA_UMC_CHIP"
 133                         "_8723_1T1R_A_CUT.\n"));
 134                 break;
 135         case VERSION_NORMA_UMC_CHIP_8723_1T1R_B_CUT:
 136                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 137                         ("Chip Version ID: VERSION_NORMA_UMC_CHIP"
 138                         "_8723_1T1R_B_CUT.\n"));
 139                 break;
 140         case VERSION_TEST_CHIP_92C:
 141                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 142                         ("Chip Version ID: VERSION_TEST_CHIP_92C.\n"));
 143                 break;
 144         case VERSION_TEST_CHIP_88C:
 145                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 146                         ("Chip Version ID: VERSION_TEST_CHIP_88C.\n"));
 147                 break;
 148         default:
 149                 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 150                         ("Chip Version ID: ???????????????.\n"));
 151                 break;
 152         }
 153         if (IS_92C_SERIAL(rtlhal->version))
 154                 rtlphy->rf_type =
 155                          (IS_92C_1T2R(rtlhal->version)) ? RF_1T2R : RF_2T2R;
 156         else
 157                 rtlphy->rf_type = RF_1T1R;
 158         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 159                  ("Chip RF Type: %s\n", (rtlphy->rf_type == RF_2T2R) ?
 160                   "RF_2T2R" : "RF_1T1R"));
 161         if (get_rf_type(rtlphy) == RF_1T1R)
 162                 rtlpriv->dm.rfpath_rxenable[0] = true;
 163         else
 164                 rtlpriv->dm.rfpath_rxenable[0] =
 165                     rtlpriv->dm.rfpath_rxenable[1] = true;
 166         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("VersionID = 0x%4x\n",
 167                                                 rtlhal->version));
 168 }
 169
 170 /**
 171  * writeLLT - LLT table write access
 172  * @io: io callback
 173  * @address: LLT logical address.
 174  * @data: LLT data content
 175  *
 176  * Realtek hardware access function.
 177  *
 178  */
 179 bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data)
 180 {
 181         struct rtl_priv *rtlpriv = rtl_priv(hw);
 182         bool status = true;
 183         long count = 0;
 184         u32 value = _LLT_INIT_ADDR(address) |
 185             _LLT_INIT_DATA(data) | _LLT_OP(_LLT_WRITE_ACCESS);
 186
 187         rtl_write_dword(rtlpriv, REG_LLT_INIT, value);
 188         do {
 189                 value = rtl_read_dword(rtlpriv, REG_LLT_INIT);
 190                 if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value))
 191                         break;
 192                 if (count > POLLING_LLT_THRESHOLD) {
 193                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 194                                  ("Failed to polling write LLT done at"
 195                                  " address %d! _LLT_OP_VALUE(%x)\n",
 196                                  address, _LLT_OP_VALUE(value)));
 197                         status = false;
 198                         break;
 199                 }
 200         } while (++count);
 201         return status;
 202 }
 203 /**
 204  * rtl92c_init_LLT_table - Init LLT table
 205  * @io: io callback
 206  * @boundary:
 207  *
 208  * Realtek hardware access function.
 209  *
 210  */
 211 bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary)
 212 {
 213         bool rst = true;
 214         u32     i;
 215
 216         for (i = 0; i < (boundary - 1); i++) {
 217                 rst = rtl92c_llt_write(hw, i , i + 1);
 218                 if (true != rst) {
 219                         pr_err("===> %s #1 fail\n", __func__);
 220                         return rst;
 221                 }
 222         }
 223         /* end of list */
 224         rst = rtl92c_llt_write(hw, (boundary - 1), 0xFF);
 225         if (true != rst) {
 226                 pr_err("===> %s #2 fail\n", __func__);
 227                 return rst;
 228         }
 229         /* Make the other pages as ring buffer
 230          * This ring buffer is used as beacon buffer if we config this MAC
 231          *  as two MAC transfer.
 232          * Otherwise used as local loopback buffer.
 233          */
 234         for (i = boundary; i < LLT_LAST_ENTRY_OF_TX_PKT_BUFFER; i++) {
 235                 rst = rtl92c_llt_write(hw, i, (i + 1));
 236                 if (true != rst) {
 237                         pr_err("===> %s #3 fail\n", __func__);
 238                         return rst;
 239                 }
 240         }
 241         /* Let last entry point to the start entry of ring buffer */
 242         rst = rtl92c_llt_write(hw, LLT_LAST_ENTRY_OF_TX_PKT_BUFFER, boundary);
 243         if (true != rst) {
 244                 pr_err("===> %s #4 fail\n", __func__);
 245                 return rst;
 246         }
 247         return rst;
 248 }
 249 void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index,
 250                      u8 *p_macaddr, bool is_group, u8 enc_algo,
 251                      bool is_wepkey, bool clear_all)
 252 {
 253         struct rtl_priv *rtlpriv = rtl_priv(hw);
 254         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 255         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 256         u8 *macaddr = p_macaddr;
 257         u32 entry_id = 0;
 258         bool is_pairwise = false;
 259         static u8 cam_const_addr[4][6] = {
 260                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
 261                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
 262                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
 263                 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
 264         };
 265         static u8 cam_const_broad[] = {
 266                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 267         };
 268
 269         if (clear_all) {
 270                 u8 idx = 0;
 271                 u8 cam_offset = 0;
 272                 u8 clear_number = 5;
 273
 274                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("clear_all\n"));
 275                 for (idx = 0; idx < clear_number; idx++) {
 276                         rtl_cam_mark_invalid(hw, cam_offset + idx);
 277                         rtl_cam_empty_entry(hw, cam_offset + idx);
 278                         if (idx < 5) {
 279                                 memset(rtlpriv->sec.key_buf[idx], 0,
 280                                        MAX_KEY_LEN);
 281                                 rtlpriv->sec.key_len[idx] = 0;
 282                         }
 283                 }
 284         } else {
 285                 switch (enc_algo) {
 286                 case WEP40_ENCRYPTION:
 287                         enc_algo = CAM_WEP40;
 288                         break;
 289                 case WEP104_ENCRYPTION:
 290                         enc_algo = CAM_WEP104;
 291                         break;
 292                 case TKIP_ENCRYPTION:
 293                         enc_algo = CAM_TKIP;
 294                         break;
 295                 case AESCCMP_ENCRYPTION:
 296                         enc_algo = CAM_AES;
 297                         break;
 298                 default:
 299                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 300                                 ("iillegal switch case\n"));
 301                         enc_algo = CAM_TKIP;
 302                         break;
 303                 }
 304                 if (is_wepkey || rtlpriv->sec.use_defaultkey) {
 305                         macaddr = cam_const_addr[key_index];
 306                         entry_id = key_index;
 307                 } else {
 308                         if (is_group) {
 309                                 macaddr = cam_const_broad;
 310                                 entry_id = key_index;
 311                         } else {
 312                                 key_index = PAIRWISE_KEYIDX;
 313                                 entry_id = CAM_PAIRWISE_KEY_POSITION;
 314                                 is_pairwise = true;
 315                         }
 316                 }
 317                 if (rtlpriv->sec.key_len[key_index] == 0) {
 318                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 319                                  ("delete one entry\n"));
 320                         rtl_cam_delete_one_entry(hw, p_macaddr, entry_id);
 321                 } else {
 322                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 323                                  ("The insert KEY length is %d\n",
 324                                   rtlpriv->sec.key_len[PAIRWISE_KEYIDX]));
 325                         RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD,
 326                                  ("The insert KEY  is %x %x\n",
 327                                   rtlpriv->sec.key_buf[0][0],
 328                                   rtlpriv->sec.key_buf[0][1]));
 329                         RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 330                                  ("add one entry\n"));
 331                         if (is_pairwise) {
 332                                 RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD,
 333                                               "Pairwiase Key content :",
 334                                               rtlpriv->sec.pairwise_key,
 335                                               rtlpriv->sec.
 336                                               key_len[PAIRWISE_KEYIDX]);
 337                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 338                                          ("set Pairwiase key\n"));
 339
 340                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 341                                                 entry_id, enc_algo,
 342                                                 CAM_CONFIG_NO_USEDK,
 343                                                 rtlpriv->sec.
 344                                                 key_buf[key_index]);
 345                         } else {
 346                                 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
 347                                          ("set group key\n"));
 348                                 if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 349                                         rtl_cam_add_one_entry(hw,
 350                                                 rtlefuse->dev_addr,
 351                                                 PAIRWISE_KEYIDX,
 352                                                 CAM_PAIRWISE_KEY_POSITION,
 353                                                 enc_algo,
 354                                                 CAM_CONFIG_NO_USEDK,
 355                                                 rtlpriv->sec.key_buf
 356                                                 [entry_id]);
 357                                 }
 358                                 rtl_cam_add_one_entry(hw, macaddr, key_index,
 359                                                 entry_id, enc_algo,
 360                                                 CAM_CONFIG_NO_USEDK,
 361                                                 rtlpriv->sec.key_buf[entry_id]);
 362                         }
 363                 }
 364         }
 365 }
 366
 367 u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw)
 368 {
 369         struct rtl_priv *rtlpriv = rtl_priv(hw);
 370
 371         return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS);
 372 }
 373
 374 void rtl92c_enable_interrupt(struct ieee80211_hw *hw)
 375 {
 376         struct rtl_priv *rtlpriv = rtl_priv(hw);
 377         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 378         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 379         struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
 380
 381         if (IS_HARDWARE_TYPE_8192CE(rtlhal)) {
 382                 rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] &
 383                                 0xFFFFFFFF);
 384                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] &
 385                                 0xFFFFFFFF);
 386         } else {
 387                 rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] &
 388                                 0xFFFFFFFF);
 389                 rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] &
 390                                 0xFFFFFFFF);
 391         }
 392 }
 393
 394 void rtl92c_init_interrupt(struct ieee80211_hw *hw)
 395 {
 396          rtl92c_enable_interrupt(hw);
 397 }
 398
 399 void rtl92c_disable_interrupt(struct ieee80211_hw *hw)
 400 {
 401         struct rtl_priv *rtlpriv = rtl_priv(hw);
 402
 403         rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
 404         rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
 405 }
 406
 407 void rtl92c_set_qos(struct ieee80211_hw *hw, int aci)
 408 {
 409         struct rtl_priv *rtlpriv = rtl_priv(hw);
 410         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 411         u32 u4b_ac_param;
 412
 413         rtl92c_dm_init_edca_turbo(hw);
 414         u4b_ac_param = (u32) mac->ac[aci].aifs;
 415         u4b_ac_param |=
 416             ((u32) le16_to_cpu(mac->ac[aci].cw_min) & 0xF) <<
 417             AC_PARAM_ECW_MIN_OFFSET;
 418         u4b_ac_param |=
 419             ((u32) le16_to_cpu(mac->ac[aci].cw_max) & 0xF) <<
 420             AC_PARAM_ECW_MAX_OFFSET;
 421         u4b_ac_param |= (u32) le16_to_cpu(mac->ac[aci].tx_op) <<
 422                          AC_PARAM_TXOP_OFFSET;
 423         RT_TRACE(rtlpriv, COMP_QOS, DBG_LOUD,
 424                  ("queue:%x, ac_param:%x\n", aci, u4b_ac_param));
 425         switch (aci) {
 426         case AC1_BK:
 427                 rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, u4b_ac_param);
 428                 break;
 429         case AC0_BE:
 430                 rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, u4b_ac_param);
 431                 break;
 432         case AC2_VI:
 433                 rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, u4b_ac_param);
 434                 break;
 435         case AC3_VO:
 436                 rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, u4b_ac_param);
 437                 break;
 438         default:
 439                 RT_ASSERT(false, ("invalid aci: %d !\n", aci));
 440                 break;
 441         }
 442 }
 443
 444 /*-------------------------------------------------------------------------
 445  * HW MAC Address
 446  *-------------------------------------------------------------------------*/
 447 void rtl92c_set_mac_addr(struct ieee80211_hw *hw, const u8 *addr)
 448 {
 449         u32 i;
 450         struct rtl_priv *rtlpriv = rtl_priv(hw);
 451
 452         for (i = 0 ; i < ETH_ALEN ; i++)
 453                 rtl_write_byte(rtlpriv, (REG_MACID + i), *(addr+i));
 454
 455         RT_TRACE(rtlpriv, COMP_CMD, DBG_DMESG, ("MAC Address: %02X-%02X-%02X-"
 456                 "%02X-%02X-%02X\n",
 457                 rtl_read_byte(rtlpriv, REG_MACID),
 458                 rtl_read_byte(rtlpriv, REG_MACID+1),
 459                 rtl_read_byte(rtlpriv, REG_MACID+2),
 460                 rtl_read_byte(rtlpriv, REG_MACID+3),
 461                 rtl_read_byte(rtlpriv, REG_MACID+4),
 462                 rtl_read_byte(rtlpriv, REG_MACID+5)));
 463 }
 464
 465 void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size)
 466 {
 467         struct rtl_priv *rtlpriv = rtl_priv(hw);
 468         rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size);
 469 }
 470
 471 int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type)
 472 {
 473         u8 value;
 474         struct rtl_priv *rtlpriv = rtl_priv(hw);
 475
 476         switch (type) {
 477         case NL80211_IFTYPE_UNSPECIFIED:
 478                 value = NT_NO_LINK;
 479                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 480                         ("Set Network type to NO LINK!\n"));
 481                 break;
 482         case NL80211_IFTYPE_ADHOC:
 483                 value = NT_LINK_AD_HOC;
 484                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 485                         ("Set Network type to Ad Hoc!\n"));
 486                 break;
 487         case NL80211_IFTYPE_STATION:
 488                 value = NT_LINK_AP;
 489                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 490                         ("Set Network type to STA!\n"));
 491                 break;
 492         case NL80211_IFTYPE_AP:
 493                 value = NT_AS_AP;
 494                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 495                         ("Set Network type to AP!\n"));
 496                 break;
 497         default:
 498                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
 499                         ("Network type %d not support!\n", type));
 500                 return -EOPNOTSUPP;
 501         }
 502         rtl_write_byte(rtlpriv, (REG_CR + 2), value);
 503         return 0;
 504 }
 505
 506 void rtl92c_init_network_type(struct ieee80211_hw *hw)
 507 {
 508         rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED);
 509 }
 510
 511 void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw)
 512 {
 513         u16     value16;
 514         u32     value32;
 515         struct rtl_priv *rtlpriv = rtl_priv(hw);
 516
 517         /* Response Rate Set */
 518         value32 = rtl_read_dword(rtlpriv, REG_RRSR);
 519         value32 &= ~RATE_BITMAP_ALL;
 520         value32 |= RATE_RRSR_CCK_ONLY_1M;
 521         rtl_write_dword(rtlpriv, REG_RRSR, value32);
 522         /* SIFS (used in NAV) */
 523         value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10);
 524         rtl_write_word(rtlpriv,  REG_SPEC_SIFS, value16);
 525         /* Retry Limit */
 526         value16 = _LRL(0x30) | _SRL(0x30);
 527         rtl_write_dword(rtlpriv,  REG_RL, value16);
 528 }
 529
 530 void rtl92c_init_rate_fallback(struct ieee80211_hw *hw)
 531 {
 532         struct rtl_priv *rtlpriv = rtl_priv(hw);
 533
 534         /* Set Data Auto Rate Fallback Retry Count register. */
 535         rtl_write_dword(rtlpriv,  REG_DARFRC, 0x00000000);
 536         rtl_write_dword(rtlpriv,  REG_DARFRC+4, 0x10080404);
 537         rtl_write_dword(rtlpriv,  REG_RARFRC, 0x04030201);
 538         rtl_write_dword(rtlpriv,  REG_RARFRC+4, 0x08070605);
 539 }
 540
 541 static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 542                                 u8 ctx_sifs)
 543 {
 544         struct rtl_priv *rtlpriv = rtl_priv(hw);
 545
 546         rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs);
 547         rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs);
 548 }
 549
 550 static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 551                                  u8 ctx_sifs)
 552 {
 553         struct rtl_priv *rtlpriv = rtl_priv(hw);
 554
 555         rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs);
 556         rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs);
 557 }
 558
 559 void rtl92c_init_edca_param(struct ieee80211_hw *hw,
 560                             u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs)
 561 {
 562         /* sequence: VO, VI, BE, BK ==> the same as 92C hardware design.
 563          * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function.
 564          */
 565         u32 value;
 566         struct rtl_priv *rtlpriv = rtl_priv(hw);
 567
 568         value = (u32)aifs;
 569         value |= ((u32)cw_min & 0xF) << 8;
 570         value |= ((u32)cw_max & 0xF) << 12;
 571         value |= (u32)txop << 16;
 572         /* 92C hardware register sequence is the same as queue number. */
 573         rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value);
 574 }
 575
 576 void rtl92c_init_edca(struct ieee80211_hw *hw)
 577 {
 578         u16 value16;
 579         struct rtl_priv *rtlpriv = rtl_priv(hw);
 580
 581         /* disable EDCCA count down, to reduce collison and retry */
 582         value16 = rtl_read_word(rtlpriv, REG_RD_CTRL);
 583         value16 |= DIS_EDCA_CNT_DWN;
 584         rtl_write_word(rtlpriv, REG_RD_CTRL, value16);
 585         /* Update SIFS timing.  ??????????
 586          * pHalData->SifsTime = 0x0e0e0a0a; */
 587         rtl92c_set_cck_sifs(hw, 0xa, 0xa);
 588         rtl92c_set_ofdm_sifs(hw, 0xe, 0xe);
 589         /* Set CCK/OFDM SIFS to be 10us. */
 590         rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a);
 591         rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010);
 592         rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204);
 593         rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004);
 594         /* TXOP */
 595         rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B);
 596         rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F);
 597         rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324);
 598         rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226);
 599         /* PIFS */
 600         rtl_write_byte(rtlpriv, REG_PIFS, 0x1C);
 601         /* AGGR BREAK TIME Register */
 602         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 603         rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040);
 604         rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02);
 605         rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02);
 606 }
 607
 608 void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw)
 609 {
 610         struct rtl_priv *rtlpriv = rtl_priv(hw);
 611
 612         rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631);
 613         rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 614         /* init AMPDU aggregation number, tuning for Tx's TP, */
 615         rtl_write_word(rtlpriv, 0x4CA, 0x0708);
 616 }
 617
 618 void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw, bool infra_mode)
 619 {
 620         struct rtl_priv *rtlpriv = rtl_priv(hw);
 621
 622         rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF);
 623 }
 624
 625 void rtl92c_init_rdg_setting(struct ieee80211_hw *hw)
 626 {
 627         struct rtl_priv *rtlpriv = rtl_priv(hw);
 628
 629         rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF);
 630         rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200);
 631         rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05);
 632 }
 633
 634 void rtl92c_init_retry_function(struct ieee80211_hw *hw)
 635 {
 636         u8      value8;
 637         struct rtl_priv *rtlpriv = rtl_priv(hw);
 638
 639         value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL);
 640         value8 |= EN_AMPDU_RTY_NEW;
 641         rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8);
 642         /* Set ACK timeout */
 643         rtl_write_byte(rtlpriv, REG_ACKTO, 0x40);
 644 }
 645
 646 void rtl92c_init_beacon_parameters(struct ieee80211_hw *hw,
 647                                    enum version_8192c version)
 648 {
 649         struct rtl_priv *rtlpriv = rtl_priv(hw);
 650         struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
 651
 652         rtl_write_word(rtlpriv, REG_TBTT_PROHIBIT, 0x6404);/* ms */
 653         rtl_write_byte(rtlpriv, REG_DRVERLYINT, DRIVER_EARLY_INT_TIME);/*ms*/
 654         rtl_write_byte(rtlpriv, REG_BCNDMATIM, BCN_DMA_ATIME_INT_TIME);
 655         if (IS_NORMAL_CHIP(rtlhal->version))
 656                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x660F);
 657         else
 658                 rtl_write_word(rtlpriv, REG_BCNTCFG, 0x66FF);
 659 }
 660
 661 void rtl92c_disable_fast_edca(struct ieee80211_hw *hw)
 662 {
 663         struct rtl_priv *rtlpriv = rtl_priv(hw);
 664
 665         rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0);
 666 }
 667
 668 void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T)
 669 {
 670         struct rtl_priv *rtlpriv = rtl_priv(hw);
 671         u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T;
 672
 673         rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value);
 674 }
 675
 676 u16 rtl92c_get_mgt_filter(struct ieee80211_hw *hw)
 677 {
 678         struct rtl_priv *rtlpriv = rtl_priv(hw);
 679
 680         return rtl_read_word(rtlpriv, REG_RXFLTMAP0);
 681 }
 682
 683 void rtl92c_set_mgt_filter(struct ieee80211_hw *hw, u16 filter)
 684 {
 685         struct rtl_priv *rtlpriv = rtl_priv(hw);
 686
 687         rtl_write_word(rtlpriv, REG_RXFLTMAP0, filter);
 688 }
 689
 690 u16 rtl92c_get_ctrl_filter(struct ieee80211_hw *hw)
 691 {
 692         struct rtl_priv *rtlpriv = rtl_priv(hw);
 693
 694         return rtl_read_word(rtlpriv, REG_RXFLTMAP1);
 695 }
 696
 697 void rtl92c_set_ctrl_filter(struct ieee80211_hw *hw, u16 filter)
 698 {
 699         struct rtl_priv *rtlpriv = rtl_priv(hw);
 700
 701         rtl_write_word(rtlpriv, REG_RXFLTMAP1, filter);
 702 }
 703
 704 u16 rtl92c_get_data_filter(struct ieee80211_hw *hw)
 705 {
 706         struct rtl_priv *rtlpriv = rtl_priv(hw);
 707
 708         return rtl_read_word(rtlpriv,  REG_RXFLTMAP2);
 709 }
 710
 711 void rtl92c_set_data_filter(struct ieee80211_hw *hw, u16 filter)
 712 {
 713         struct rtl_priv *rtlpriv = rtl_priv(hw);
 714
 715         rtl_write_word(rtlpriv, REG_RXFLTMAP2, filter);
 716 }
 717 /*==============================================================*/
 718
 719 static u8 _rtl92c_query_rxpwrpercentage(char antpower)
 720 {
 721         if ((antpower <= -100) || (antpower >= 20))
 722                 return 0;
 723         else if (antpower >= 0)
 724                 return 100;
 725         else
 726                 return 100 + antpower;
 727 }
 728
 729 static u8 _rtl92c_evm_db_to_percentage(char value)
 730 {
 731         char ret_val;
 732
 733         ret_val = value;
 734         if (ret_val >= 0)
 735                 ret_val = 0;
 736         if (ret_val <= -33)
 737                 ret_val = -33;
 738         ret_val = 0 - ret_val;
 739         ret_val *= 3;
 740         if (ret_val == 99)
 741                 ret_val = 100;
 742         return ret_val;
 743 }
 744
 745 static long _rtl92c_translate_todbm(struct ieee80211_hw *hw,
 746                                      u8 signal_strength_index)
 747 {
 748         long signal_power;
 749
 750         signal_power = (long)((signal_strength_index + 1) >> 1);
 751         signal_power -= 95;
 752         return signal_power;
 753 }
 754
 755 static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
 756                 long currsig)
 757 {
 758         long retsig;
 759
 760         if (currsig >= 61 && currsig <= 100)
 761                 retsig = 90 + ((currsig - 60) / 4);
 762         else if (currsig >= 41 && currsig <= 60)
 763                 retsig = 78 + ((currsig - 40) / 2);
 764         else if (currsig >= 31 && currsig <= 40)
 765                 retsig = 66 + (currsig - 30);
 766         else if (currsig >= 21 && currsig <= 30)
 767                 retsig = 54 + (currsig - 20);
 768         else if (currsig >= 5 && currsig <= 20)
 769                 retsig = 42 + (((currsig - 5) * 2) / 3);
 770         else if (currsig == 4)
 771                 retsig = 36;
 772         else if (currsig == 3)
 773                 retsig = 27;
 774         else if (currsig == 2)
 775                 retsig = 18;
 776         else if (currsig == 1)
 777                 retsig = 9;
 778         else
 779                 retsig = currsig;
 780         return retsig;
 781 }
 782
 783 static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 784                                       struct rtl_stats *pstats,
 785                                       struct rx_desc_92c *pdesc,
 786                                       struct rx_fwinfo_92c *p_drvinfo,
 787                                       bool packet_match_bssid,
 788                                       bool packet_toself,
 789                                       bool packet_beacon)
 790 {
 791         struct rtl_priv *rtlpriv = rtl_priv(hw);
 792         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 793         struct phy_sts_cck_8192s_t *cck_buf;
 794         s8 rx_pwr_all = 0, rx_pwr[4];
 795         u8 rf_rx_num = 0, evm, pwdb_all;
 796         u8 i, max_spatial_stream;
 797         u32 rssi, total_rssi = 0;
 798         bool in_powersavemode = false;
 799         bool is_cck_rate;
 800
 801         is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
 802         pstats->packet_matchbssid = packet_match_bssid;
 803         pstats->packet_toself = packet_toself;
 804         pstats->is_cck = is_cck_rate;
 805         pstats->packet_beacon = packet_beacon;
 806         pstats->is_cck = is_cck_rate;
 807         pstats->RX_SIGQ[0] = -1;
 808         pstats->RX_SIGQ[1] = -1;
 809         if (is_cck_rate) {
 810                 u8 report, cck_highpwr;
 811                 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 812                 if (!in_powersavemode)
 813                         cck_highpwr = rtlphy->cck_high_power;
 814                 else
 815                         cck_highpwr = false;
 816                 if (!cck_highpwr) {
 817                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 818                         report = cck_buf->cck_agc_rpt & 0xc0;
 819                         report = report >> 6;
 820                         switch (report) {
 821                         case 0x3:
 822                                 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 823                                 break;
 824                         case 0x2:
 825                                 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 826                                 break;
 827                         case 0x1:
 828                                 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 829                                 break;
 830                         case 0x0:
 831                                 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 832                                 break;
 833                         }
 834                 } else {
 835                         u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 836                         report = p_drvinfo->cfosho[0] & 0x60;
 837                         report = report >> 5;
 838                         switch (report) {
 839                         case 0x3:
 840                                 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 841                                 break;
 842                         case 0x2:
 843                                 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 844                                 break;
 845                         case 0x1:
 846                                 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 847                                 break;
 848                         case 0x0:
 849                                 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 850                                 break;
 851                         }
 852                 }
 853                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 854                 pstats->rx_pwdb_all = pwdb_all;
 855                 pstats->recvsignalpower = rx_pwr_all;
 856                 if (packet_match_bssid) {
 857                         u8 sq;
 858                         if (pstats->rx_pwdb_all > 40)
 859                                 sq = 100;
 860                         else {
 861                                 sq = cck_buf->sq_rpt;
 862                                 if (sq > 64)
 863                                         sq = 0;
 864                                 else if (sq < 20)
 865                                         sq = 100;
 866                                 else
 867                                         sq = ((64 - sq) * 100) / 44;
 868                         }
 869                         pstats->signalquality = sq;
 870                         pstats->RX_SIGQ[0] = sq;
 871                         pstats->RX_SIGQ[1] = -1;
 872                 }
 873         } else {
 874                 rtlpriv->dm.rfpath_rxenable[0] =
 875                     rtlpriv->dm.rfpath_rxenable[1] = true;
 876                 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 877                         if (rtlpriv->dm.rfpath_rxenable[i])
 878                                 rf_rx_num++;
 879                         rx_pwr[i] =
 880                             ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 881                         rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]);
 882                         total_rssi += rssi;
 883                         rtlpriv->stats.rx_snr_db[i] =
 884                             (long)(p_drvinfo->rxsnr[i] / 2);
 885
 886                         if (packet_match_bssid)
 887                                 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 888                 }
 889                 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 890                 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all);
 891                 pstats->rx_pwdb_all = pwdb_all;
 892                 pstats->rxpower = rx_pwr_all;
 893                 pstats->recvsignalpower = rx_pwr_all;
 894                 if (GET_RX_DESC_RX_MCS(pdesc) &&
 895                     GET_RX_DESC_RX_MCS(pdesc) >= DESC92_RATEMCS8 &&
 896                     GET_RX_DESC_RX_MCS(pdesc) <= DESC92_RATEMCS15)
 897                         max_spatial_stream = 2;
 898                 else
 899                         max_spatial_stream = 1;
 900                 for (i = 0; i < max_spatial_stream; i++) {
 901                         evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 902                         if (packet_match_bssid) {
 903                                 if (i == 0)
 904                                         pstats->signalquality =
 905                                             (u8) (evm & 0xff);
 906                                 pstats->RX_SIGQ[i] =
 907                                     (u8) (evm & 0xff);
 908                         }
 909                 }
 910         }
 911         if (is_cck_rate)
 912                 pstats->signalstrength =
 913                     (u8) (_rtl92c_signal_scale_mapping(hw, pwdb_all));
 914         else if (rf_rx_num != 0)
 915                 pstats->signalstrength =
 916                     (u8) (_rtl92c_signal_scale_mapping
 917                           (hw, total_rssi /= rf_rx_num));
 918 }
 919
 920 static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw,
 921                 struct rtl_stats *pstats)
 922 {
 923         struct rtl_priv *rtlpriv = rtl_priv(hw);
 924         struct rtl_phy *rtlphy = &(rtlpriv->phy);
 925         u8 rfpath;
 926         u32 last_rssi, tmpval;
 927
 928         if (pstats->packet_toself || pstats->packet_beacon) {
 929                 rtlpriv->stats.rssi_calculate_cnt++;
 930                 if (rtlpriv->stats.ui_rssi.total_num++ >=
 931                     PHY_RSSI_SLID_WIN_MAX) {
 932                         rtlpriv->stats.ui_rssi.total_num =
 933                             PHY_RSSI_SLID_WIN_MAX;
 934                         last_rssi =
 935                             rtlpriv->stats.ui_rssi.elements[rtlpriv->
 936                                                            stats.ui_rssi.index];
 937                         rtlpriv->stats.ui_rssi.total_val -= last_rssi;
 938                 }
 939                 rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
 940                 rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
 941                                         index++] = pstats->signalstrength;
 942                 if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
 943                         rtlpriv->stats.ui_rssi.index = 0;
 944                 tmpval = rtlpriv->stats.ui_rssi.total_val /
 945                     rtlpriv->stats.ui_rssi.total_num;
 946                 rtlpriv->stats.signal_strength =
 947                     _rtl92c_translate_todbm(hw, (u8) tmpval);
 948                 pstats->rssi = rtlpriv->stats.signal_strength;
 949         }
 950         if (!pstats->is_cck && pstats->packet_toself) {
 951                 for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
 952                      rfpath++) {
 953                         if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
 954                                 continue;
 955                         if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
 956                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 957                                     pstats->rx_mimo_signalstrength[rfpath];
 958                         }
 959                         if (pstats->rx_mimo_signalstrength[rfpath] >
 960                             rtlpriv->stats.rx_rssi_percentage[rfpath]) {
 961                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 962                                     ((rtlpriv->stats.
 963                                       rx_rssi_percentage[rfpath] *
 964                                       (RX_SMOOTH_FACTOR - 1)) +
 965                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 966                                     (RX_SMOOTH_FACTOR);
 967
 968                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 969                                     rtlpriv->stats.rx_rssi_percentage[rfpath] +
 970                                     1;
 971                         } else {
 972                                 rtlpriv->stats.rx_rssi_percentage[rfpath] =
 973                                     ((rtlpriv->stats.
 974                                       rx_rssi_percentage[rfpath] *
 975                                       (RX_SMOOTH_FACTOR - 1)) +
 976                                      (pstats->rx_mimo_signalstrength[rfpath])) /
 977                                     (RX_SMOOTH_FACTOR);
 978                         }
 979                 }
 980         }
 981 }
 982
 983 static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw,
 984                                                struct rtl_stats *pstats)
 985 {
 986         struct rtl_priv *rtlpriv = rtl_priv(hw);
 987         int weighting = 0;
 988
 989         if (rtlpriv->stats.recv_signal_power == 0)
 990                 rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
 991         if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
 992                 weighting = 5;
 993         else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
 994                 weighting = (-5);
 995         rtlpriv->stats.recv_signal_power =
 996             (rtlpriv->stats.recv_signal_power * 5 +
 997              pstats->recvsignalpower + weighting) / 6;
 998 }
 999
1000 static void _rtl92c_process_pwdb(struct ieee80211_hw *hw,
1001                 struct rtl_stats *pstats)
1002 {
1003         struct rtl_priv *rtlpriv = rtl_priv(hw);
1004         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1005         long undecorated_smoothed_pwdb = 0;
1006
1007         if (mac->opmode == NL80211_IFTYPE_ADHOC) {
1008                 return;
1009         } else {
1010                 undecorated_smoothed_pwdb =
1011                     rtlpriv->dm.undecorated_smoothed_pwdb;
1012         }
1013         if (pstats->packet_toself || pstats->packet_beacon) {
1014                 if (undecorated_smoothed_pwdb < 0)
1015                         undecorated_smoothed_pwdb = pstats->rx_pwdb_all;
1016                 if (pstats->rx_pwdb_all > (u32) undecorated_smoothed_pwdb) {
1017                         undecorated_smoothed_pwdb =
1018                             (((undecorated_smoothed_pwdb) *
1019                               (RX_SMOOTH_FACTOR - 1)) +
1020                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
1021                         undecorated_smoothed_pwdb = undecorated_smoothed_pwdb
1022                             + 1;
1023                 } else {
1024                         undecorated_smoothed_pwdb =
1025                             (((undecorated_smoothed_pwdb) *
1026                               (RX_SMOOTH_FACTOR - 1)) +
1027                              (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
1028                 }
1029                 rtlpriv->dm.undecorated_smoothed_pwdb =
1030                     undecorated_smoothed_pwdb;
1031                 _rtl92c_update_rxsignalstatistics(hw, pstats);
1032         }
1033 }
1034
1035 static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw,
1036                                              struct rtl_stats *pstats)
1037 {
1038         struct rtl_priv *rtlpriv = rtl_priv(hw);
1039         u32 last_evm = 0, n_stream, tmpval;
1040
1041         if (pstats->signalquality != 0) {
1042                 if (pstats->packet_toself || pstats->packet_beacon) {
1043                         if (rtlpriv->stats.LINK_Q.total_num++ >=
1044                             PHY_LINKQUALITY_SLID_WIN_MAX) {
1045                                 rtlpriv->stats.LINK_Q.total_num =
1046                                     PHY_LINKQUALITY_SLID_WIN_MAX;
1047                                 last_evm =
1048                                     rtlpriv->stats.LINK_Q.elements
1049                                     [rtlpriv->stats.LINK_Q.index];
1050                                 rtlpriv->stats.LINK_Q.total_val -=
1051                                     last_evm;
1052                         }
1053                         rtlpriv->stats.LINK_Q.total_val +=
1054                             pstats->signalquality;
1055                         rtlpriv->stats.LINK_Q.elements
1056                            [rtlpriv->stats.LINK_Q.index++] =
1057                             pstats->signalquality;
1058                         if (rtlpriv->stats.LINK_Q.index >=
1059                             PHY_LINKQUALITY_SLID_WIN_MAX)
1060                                 rtlpriv->stats.LINK_Q.index = 0;
1061                         tmpval = rtlpriv->stats.LINK_Q.total_val /
1062                             rtlpriv->stats.LINK_Q.total_num;
1063                         rtlpriv->stats.signal_quality = tmpval;
1064                         rtlpriv->stats.last_sigstrength_inpercent = tmpval;
1065                         for (n_stream = 0; n_stream < 2;
1066                              n_stream++) {
1067                                 if (pstats->RX_SIGQ[n_stream] != -1) {
1068                                         if (!rtlpriv->stats.RX_EVM[n_stream]) {
1069                                                 rtlpriv->stats.RX_EVM[n_stream]
1070                                                  = pstats->RX_SIGQ[n_stream];
1071                                         }
1072                                         rtlpriv->stats.RX_EVM[n_stream] =
1073                                             ((rtlpriv->stats.RX_EVM
1074                                             [n_stream] *
1075                                             (RX_SMOOTH_FACTOR - 1)) +
1076                                             (pstats->RX_SIGQ
1077                                             [n_stream] * 1)) /
1078                                             (RX_SMOOTH_FACTOR);
1079                                 }
1080                         }
1081                 }
1082         } else {
1083                 ;
1084         }
1085 }
1086
1087 static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw,
1088                                      u8 *buffer,
1089                                      struct rtl_stats *pcurrent_stats)
1090 {
1091         if (!pcurrent_stats->packet_matchbssid &&
1092             !pcurrent_stats->packet_beacon)
1093                 return;
1094         _rtl92c_process_ui_rssi(hw, pcurrent_stats);
1095         _rtl92c_process_pwdb(hw, pcurrent_stats);
1096         _rtl92c_process_LINK_Q(hw, pcurrent_stats);
1097 }
1098
1099 void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
1100                                                struct sk_buff *skb,
1101                                                struct rtl_stats *pstats,
1102                                                struct rx_desc_92c *pdesc,
1103                                                struct rx_fwinfo_92c *p_drvinfo)
1104 {
1105         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1106         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1107         struct ieee80211_hdr *hdr;
1108         u8 *tmp_buf;
1109         u8 *praddr;
1110         __le16 fc;
1111         u16 type, cpu_fc;
1112         bool packet_matchbssid, packet_toself, packet_beacon;
1113
1114         tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
1115         hdr = (struct ieee80211_hdr *)tmp_buf;
1116         fc = hdr->frame_control;
1117         cpu_fc = le16_to_cpu(fc);
1118         type = WLAN_FC_GET_TYPE(fc);
1119         praddr = hdr->addr1;
1120         packet_matchbssid =
1121             ((IEEE80211_FTYPE_CTL != type) &&
1122              (!compare_ether_addr(mac->bssid,
1123                           (cpu_fc & IEEE80211_FCTL_TODS) ?
1124                           hdr->addr1 : (cpu_fc & IEEE80211_FCTL_FROMDS) ?
1125                           hdr->addr2 : hdr->addr3)) &&
1126              (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
1127
1128         packet_toself = packet_matchbssid &&
1129             (!compare_ether_addr(praddr, rtlefuse->dev_addr));
1130         if (ieee80211_is_beacon(fc))
1131                 packet_beacon = true;
1132         _rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
1133                                    packet_matchbssid, packet_toself,
1134                                    packet_beacon);
1135         _rtl92c_process_phyinfo(hw, tmp_buf, pstats);
1136 }