linux/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/mac.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright(c) 2009-2012  Realtek Corporation.*/
   3
   4#include "../wifi.h"
   5#include "../pci.h"
   6#include "../usb.h"
   7#include "../ps.h"
   8#include "../cam.h"
   9#include "../stats.h"
  10#include "reg.h"
  11#include "def.h"
  12#include "phy.h"
  13#include "rf.h"
  14#include "dm.h"
  15#include "mac.h"
  16#include "trx.h"
  17#include "../rtl8192c/fw_common.h"
  18
  19#include <linux/module.h>
  20
  21/* macro to shorten lines */
  22
  23#define LINK_Q  ui_link_quality
  24#define RX_EVM  rx_evm_percentage
  25#define RX_SIGQ rx_mimo_sig_qual
  26
  27void rtl92c_read_chip_version(struct ieee80211_hw *hw)
  28{
  29        struct rtl_priv *rtlpriv = rtl_priv(hw);
  30        struct rtl_phy *rtlphy = &(rtlpriv->phy);
  31        struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
  32        enum version_8192c chip_version = VERSION_UNKNOWN;
  33        const char *versionid;
  34        u32 value32;
  35
  36        value32 = rtl_read_dword(rtlpriv, REG_SYS_CFG);
  37        if (value32 & TRP_VAUX_EN) {
  38                chip_version = (value32 & TYPE_ID) ? VERSION_TEST_CHIP_92C :
  39                               VERSION_TEST_CHIP_88C;
  40        } else {
  41                /* Normal mass production chip. */
  42                chip_version = NORMAL_CHIP;
  43                chip_version |= ((value32 & TYPE_ID) ? CHIP_92C : 0);
  44                chip_version |= ((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : 0);
  45                if (IS_VENDOR_UMC(chip_version))
  46                        chip_version |= ((value32 & CHIP_VER_RTL_MASK) ?
  47                                         CHIP_VENDOR_UMC_B_CUT : 0);
  48                if (IS_92C_SERIAL(chip_version)) {
  49                        value32 = rtl_read_dword(rtlpriv, REG_HPON_FSM);
  50                        chip_version |= ((CHIP_BONDING_IDENTIFIER(value32) ==
  51                                 CHIP_BONDING_92C_1T2R) ? CHIP_92C_1T2R : 0);
  52                }
  53        }
  54        rtlhal->version  = (enum version_8192c)chip_version;
  55        pr_info("Chip version 0x%x\n", chip_version);
  56        switch (rtlhal->version) {
  57        case VERSION_NORMAL_TSMC_CHIP_92C_1T2R:
  58                versionid = "NORMAL_B_CHIP_92C";
  59                break;
  60        case VERSION_NORMAL_TSMC_CHIP_92C:
  61                versionid = "NORMAL_TSMC_CHIP_92C";
  62                break;
  63        case VERSION_NORMAL_TSMC_CHIP_88C:
  64                versionid = "NORMAL_TSMC_CHIP_88C";
  65                break;
  66        case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT:
  67                versionid = "NORMAL_UMC_CHIP_i92C_1T2R_A_CUT";
  68                break;
  69        case VERSION_NORMAL_UMC_CHIP_92C_A_CUT:
  70                versionid = "NORMAL_UMC_CHIP_92C_A_CUT";
  71                break;
  72        case VERSION_NORMAL_UMC_CHIP_88C_A_CUT:
  73                versionid = "NORMAL_UMC_CHIP_88C_A_CUT";
  74                break;
  75        case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT:
  76                versionid = "NORMAL_UMC_CHIP_92C_1T2R_B_CUT";
  77                break;
  78        case VERSION_NORMAL_UMC_CHIP_92C_B_CUT:
  79                versionid = "NORMAL_UMC_CHIP_92C_B_CUT";
  80                break;
  81        case VERSION_NORMAL_UMC_CHIP_88C_B_CUT:
  82                versionid = "NORMAL_UMC_CHIP_88C_B_CUT";
  83                break;
  84        case VERSION_TEST_CHIP_92C:
  85                versionid = "TEST_CHIP_92C";
  86                break;
  87        case VERSION_TEST_CHIP_88C:
  88                versionid = "TEST_CHIP_88C";
  89                break;
  90        default:
  91                versionid = "UNKNOWN";
  92                break;
  93        }
  94        rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
  95                "Chip Version ID: %s\n", versionid);
  96
  97        if (IS_92C_SERIAL(rtlhal->version))
  98                rtlphy->rf_type =
  99                         (IS_92C_1T2R(rtlhal->version)) ? RF_1T2R : RF_2T2R;
 100        else
 101                rtlphy->rf_type = RF_1T1R;
 102        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
 103                "Chip RF Type: %s\n",
 104                rtlphy->rf_type == RF_2T2R ? "RF_2T2R" : "RF_1T1R");
 105        if (get_rf_type(rtlphy) == RF_1T1R)
 106                rtlpriv->dm.rfpath_rxenable[0] = true;
 107        else
 108                rtlpriv->dm.rfpath_rxenable[0] =
 109                    rtlpriv->dm.rfpath_rxenable[1] = true;
 110        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD, "VersionID = 0x%4x\n",
 111                rtlhal->version);
 112}
 113
 114/**
 115 * rtl92c_llt_write - LLT table write access
 116 * @hw: Pointer to the ieee80211_hw structure.
 117 * @address: LLT logical address.
 118 * @data: LLT data content
 119 *
 120 * Realtek hardware access function.
 121 *
 122 */
 123bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data)
 124{
 125        struct rtl_priv *rtlpriv = rtl_priv(hw);
 126        bool status = true;
 127        long count = 0;
 128        u32 value = _LLT_INIT_ADDR(address) |
 129            _LLT_INIT_DATA(data) | _LLT_OP(_LLT_WRITE_ACCESS);
 130
 131        rtl_write_dword(rtlpriv, REG_LLT_INIT, value);
 132        do {
 133                value = rtl_read_dword(rtlpriv, REG_LLT_INIT);
 134                if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value))
 135                        break;
 136                if (count > POLLING_LLT_THRESHOLD) {
 137                        pr_err("Failed to polling write LLT done at address %d! _LLT_OP_VALUE(%x)\n",
 138                               address, _LLT_OP_VALUE(value));
 139                        status = false;
 140                        break;
 141                }
 142        } while (++count);
 143        return status;
 144}
 145
 146/**
 147 * rtl92c_init_llt_table - Init LLT table
 148 * @hw: Pointer to the ieee80211_hw structure.
 149 * @boundary: Page boundary.
 150 *
 151 * Realtek hardware access function.
 152 */
 153bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary)
 154{
 155        bool rst = true;
 156        u32     i;
 157
 158        for (i = 0; i < (boundary - 1); i++) {
 159                rst = rtl92c_llt_write(hw, i , i + 1);
 160                if (!rst) {
 161                        pr_err("===> %s #1 fail\n", __func__);
 162                        return rst;
 163                }
 164        }
 165        /* end of list */
 166        rst = rtl92c_llt_write(hw, (boundary - 1), 0xFF);
 167        if (!rst) {
 168                pr_err("===> %s #2 fail\n", __func__);
 169                return rst;
 170        }
 171        /* Make the other pages as ring buffer
 172         * This ring buffer is used as beacon buffer if we config this MAC
 173         *  as two MAC transfer.
 174         * Otherwise used as local loopback buffer.
 175         */
 176        for (i = boundary; i < LLT_LAST_ENTRY_OF_TX_PKT_BUFFER; i++) {
 177                rst = rtl92c_llt_write(hw, i, (i + 1));
 178                if (!rst) {
 179                        pr_err("===> %s #3 fail\n", __func__);
 180                        return rst;
 181                }
 182        }
 183        /* Let last entry point to the start entry of ring buffer */
 184        rst = rtl92c_llt_write(hw, LLT_LAST_ENTRY_OF_TX_PKT_BUFFER, boundary);
 185        if (!rst) {
 186                pr_err("===> %s #4 fail\n", __func__);
 187                return rst;
 188        }
 189        return rst;
 190}
 191
 192void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index,
 193                     u8 *p_macaddr, bool is_group, u8 enc_algo,
 194                     bool is_wepkey, bool clear_all)
 195{
 196        struct rtl_priv *rtlpriv = rtl_priv(hw);
 197        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 198        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 199        u8 *macaddr = p_macaddr;
 200        u32 entry_id = 0;
 201        bool is_pairwise = false;
 202        static u8 cam_const_addr[4][6] = {
 203                {0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
 204                {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
 205                {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
 206                {0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
 207        };
 208        static u8 cam_const_broad[] = {
 209                0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 210        };
 211
 212        if (clear_all) {
 213                u8 idx = 0;
 214                u8 cam_offset = 0;
 215                u8 clear_number = 5;
 216
 217                rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG, "clear_all\n");
 218                for (idx = 0; idx < clear_number; idx++) {
 219                        rtl_cam_mark_invalid(hw, cam_offset + idx);
 220                        rtl_cam_empty_entry(hw, cam_offset + idx);
 221                        if (idx < 5) {
 222                                memset(rtlpriv->sec.key_buf[idx], 0,
 223                                       MAX_KEY_LEN);
 224                                rtlpriv->sec.key_len[idx] = 0;
 225                        }
 226                }
 227        } else {
 228                switch (enc_algo) {
 229                case WEP40_ENCRYPTION:
 230                        enc_algo = CAM_WEP40;
 231                        break;
 232                case WEP104_ENCRYPTION:
 233                        enc_algo = CAM_WEP104;
 234                        break;
 235                case TKIP_ENCRYPTION:
 236                        enc_algo = CAM_TKIP;
 237                        break;
 238                case AESCCMP_ENCRYPTION:
 239                        enc_algo = CAM_AES;
 240                        break;
 241                default:
 242                        pr_err("illegal switch case\n");
 243                        enc_algo = CAM_TKIP;
 244                        break;
 245                }
 246                if (is_wepkey || rtlpriv->sec.use_defaultkey) {
 247                        macaddr = cam_const_addr[key_index];
 248                        entry_id = key_index;
 249                } else {
 250                        if (is_group) {
 251                                macaddr = cam_const_broad;
 252                                entry_id = key_index;
 253                        } else {
 254                                if (mac->opmode == NL80211_IFTYPE_AP ||
 255                                    mac->opmode == NL80211_IFTYPE_MESH_POINT) {
 256                                        entry_id = rtl_cam_get_free_entry(hw,
 257                                                                 p_macaddr);
 258                                        if (entry_id >=  TOTAL_CAM_ENTRY) {
 259                                                pr_err("Can not find free hw security cam entry\n");
 260                                                return;
 261                                        }
 262                                } else {
 263                                        entry_id = CAM_PAIRWISE_KEY_POSITION;
 264                                }
 265
 266                                key_index = PAIRWISE_KEYIDX;
 267                                is_pairwise = true;
 268                        }
 269                }
 270                if (rtlpriv->sec.key_len[key_index] == 0) {
 271                        rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
 272                                "delete one entry\n");
 273                        if (mac->opmode == NL80211_IFTYPE_AP ||
 274                            mac->opmode == NL80211_IFTYPE_MESH_POINT)
 275                                rtl_cam_del_entry(hw, p_macaddr);
 276                        rtl_cam_delete_one_entry(hw, p_macaddr, entry_id);
 277                } else {
 278                        rtl_dbg(rtlpriv, COMP_SEC, DBG_LOUD,
 279                                "The insert KEY length is %d\n",
 280                                 rtlpriv->sec.key_len[PAIRWISE_KEYIDX]);
 281                        rtl_dbg(rtlpriv, COMP_SEC, DBG_LOUD,
 282                                "The insert KEY is %x %x\n",
 283                                rtlpriv->sec.key_buf[0][0],
 284                                rtlpriv->sec.key_buf[0][1]);
 285                        rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
 286                                "add one entry\n");
 287                        if (is_pairwise) {
 288                                RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD,
 289                                              "Pairwise Key content",
 290                                              rtlpriv->sec.pairwise_key,
 291                                              rtlpriv->sec.
 292                                              key_len[PAIRWISE_KEYIDX]);
 293                                rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
 294                                        "set Pairwise key\n");
 295
 296                                rtl_cam_add_one_entry(hw, macaddr, key_index,
 297                                                entry_id, enc_algo,
 298                                                CAM_CONFIG_NO_USEDK,
 299                                                rtlpriv->sec.
 300                                                key_buf[key_index]);
 301                        } else {
 302                                rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
 303                                        "set group key\n");
 304                                if (mac->opmode == NL80211_IFTYPE_ADHOC) {
 305                                        rtl_cam_add_one_entry(hw,
 306                                                rtlefuse->dev_addr,
 307                                                PAIRWISE_KEYIDX,
 308                                                CAM_PAIRWISE_KEY_POSITION,
 309                                                enc_algo,
 310                                                CAM_CONFIG_NO_USEDK,
 311                                                rtlpriv->sec.key_buf
 312                                                [entry_id]);
 313                                }
 314                                rtl_cam_add_one_entry(hw, macaddr, key_index,
 315                                                entry_id, enc_algo,
 316                                                CAM_CONFIG_NO_USEDK,
 317                                                rtlpriv->sec.key_buf[entry_id]);
 318                        }
 319                }
 320        }
 321}
 322
 323u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw)
 324{
 325        struct rtl_priv *rtlpriv = rtl_priv(hw);
 326
 327        return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS);
 328}
 329
 330void rtl92c_enable_interrupt(struct ieee80211_hw *hw)
 331{
 332        struct rtl_priv *rtlpriv = rtl_priv(hw);
 333        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 334        struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
 335
 336        if (IS_HARDWARE_TYPE_8192CE(rtlpriv)) {
 337                rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] &
 338                                0xFFFFFFFF);
 339                rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] &
 340                                0xFFFFFFFF);
 341        } else {
 342                rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] &
 343                                0xFFFFFFFF);
 344                rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] &
 345                                0xFFFFFFFF);
 346        }
 347}
 348
 349void rtl92c_init_interrupt(struct ieee80211_hw *hw)
 350{
 351         rtl92c_enable_interrupt(hw);
 352}
 353
 354void rtl92c_disable_interrupt(struct ieee80211_hw *hw)
 355{
 356        struct rtl_priv *rtlpriv = rtl_priv(hw);
 357
 358        rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
 359        rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
 360}
 361
 362void rtl92c_set_qos(struct ieee80211_hw *hw, int aci)
 363{
 364        struct rtl_priv *rtlpriv = rtl_priv(hw);
 365
 366        rtl92c_dm_init_edca_turbo(hw);
 367        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AC_PARAM, (u8 *)&aci);
 368}
 369
 370void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size)
 371{
 372        struct rtl_priv *rtlpriv = rtl_priv(hw);
 373
 374        rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size);
 375}
 376
 377int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type)
 378{
 379        u8 value;
 380        struct rtl_priv *rtlpriv = rtl_priv(hw);
 381
 382        switch (type) {
 383        case NL80211_IFTYPE_UNSPECIFIED:
 384                value = NT_NO_LINK;
 385                rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
 386                        "Set Network type to NO LINK!\n");
 387                break;
 388        case NL80211_IFTYPE_ADHOC:
 389                value = NT_LINK_AD_HOC;
 390                rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
 391                        "Set Network type to Ad Hoc!\n");
 392                break;
 393        case NL80211_IFTYPE_STATION:
 394                value = NT_LINK_AP;
 395                rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
 396                        "Set Network type to STA!\n");
 397                break;
 398        case NL80211_IFTYPE_AP:
 399                value = NT_AS_AP;
 400                rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
 401                        "Set Network type to AP!\n");
 402                break;
 403        default:
 404                rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
 405                        "Network type %d not supported!\n", type);
 406                return -EOPNOTSUPP;
 407        }
 408        rtl_write_byte(rtlpriv, MSR, value);
 409        return 0;
 410}
 411
 412void rtl92c_init_network_type(struct ieee80211_hw *hw)
 413{
 414        rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED);
 415}
 416
 417void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw)
 418{
 419        u16     value16;
 420        u32     value32;
 421        struct rtl_priv *rtlpriv = rtl_priv(hw);
 422
 423        /* Response Rate Set */
 424        value32 = rtl_read_dword(rtlpriv, REG_RRSR);
 425        value32 &= ~RATE_BITMAP_ALL;
 426        value32 |= RATE_RRSR_CCK_ONLY_1M;
 427        rtl_write_dword(rtlpriv, REG_RRSR, value32);
 428        /* SIFS (used in NAV) */
 429        value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10);
 430        rtl_write_word(rtlpriv,  REG_SPEC_SIFS, value16);
 431        /* Retry Limit */
 432        value16 = _LRL(0x30) | _SRL(0x30);
 433        rtl_write_dword(rtlpriv,  REG_RL, value16);
 434}
 435
 436void rtl92c_init_rate_fallback(struct ieee80211_hw *hw)
 437{
 438        struct rtl_priv *rtlpriv = rtl_priv(hw);
 439
 440        /* Set Data Auto Rate Fallback Retry Count register. */
 441        rtl_write_dword(rtlpriv,  REG_DARFRC, 0x00000000);
 442        rtl_write_dword(rtlpriv,  REG_DARFRC+4, 0x10080404);
 443        rtl_write_dword(rtlpriv,  REG_RARFRC, 0x04030201);
 444        rtl_write_dword(rtlpriv,  REG_RARFRC+4, 0x08070605);
 445}
 446
 447static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 448                                u8 ctx_sifs)
 449{
 450        struct rtl_priv *rtlpriv = rtl_priv(hw);
 451
 452        rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs);
 453        rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs);
 454}
 455
 456static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs,
 457                                 u8 ctx_sifs)
 458{
 459        struct rtl_priv *rtlpriv = rtl_priv(hw);
 460
 461        rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs);
 462        rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs);
 463}
 464
 465void rtl92c_init_edca_param(struct ieee80211_hw *hw,
 466                            u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs)
 467{
 468        /* sequence: VO, VI, BE, BK ==> the same as 92C hardware design.
 469         * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function.
 470         */
 471        u32 value;
 472        struct rtl_priv *rtlpriv = rtl_priv(hw);
 473
 474        value = (u32)aifs;
 475        value |= ((u32)cw_min & 0xF) << 8;
 476        value |= ((u32)cw_max & 0xF) << 12;
 477        value |= (u32)txop << 16;
 478        /* 92C hardware register sequence is the same as queue number. */
 479        rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value);
 480}
 481
 482void rtl92c_init_edca(struct ieee80211_hw *hw)
 483{
 484        u16 value16;
 485        struct rtl_priv *rtlpriv = rtl_priv(hw);
 486
 487        /* disable EDCCA count down, to reduce collison and retry */
 488        value16 = rtl_read_word(rtlpriv, REG_RD_CTRL);
 489        value16 |= DIS_EDCA_CNT_DWN;
 490        rtl_write_word(rtlpriv, REG_RD_CTRL, value16);
 491        /* Update SIFS timing.  ??????????
 492         * pHalData->SifsTime = 0x0e0e0a0a; */
 493        rtl92c_set_cck_sifs(hw, 0xa, 0xa);
 494        rtl92c_set_ofdm_sifs(hw, 0xe, 0xe);
 495        /* Set CCK/OFDM SIFS to be 10us. */
 496        rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a);
 497        rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010);
 498        rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204);
 499        rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004);
 500        /* TXOP */
 501        rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B);
 502        rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F);
 503        rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324);
 504        rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226);
 505        /* PIFS */
 506        rtl_write_byte(rtlpriv, REG_PIFS, 0x1C);
 507        /* AGGR BREAK TIME Register */
 508        rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 509        rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040);
 510        rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02);
 511        rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02);
 512}
 513
 514void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw)
 515{
 516        struct rtl_priv *rtlpriv = rtl_priv(hw);
 517
 518        rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631);
 519        rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16);
 520        /* init AMPDU aggregation number, tuning for Tx's TP, */
 521        rtl_write_word(rtlpriv, 0x4CA, 0x0708);
 522}
 523
 524void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw)
 525{
 526        struct rtl_priv *rtlpriv = rtl_priv(hw);
 527
 528        rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF);
 529}
 530
 531void rtl92c_init_rdg_setting(struct ieee80211_hw *hw)
 532{
 533        struct rtl_priv *rtlpriv = rtl_priv(hw);
 534
 535        rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF);
 536        rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200);
 537        rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05);
 538}
 539
 540void rtl92c_init_retry_function(struct ieee80211_hw *hw)
 541{
 542        u8      value8;
 543        struct rtl_priv *rtlpriv = rtl_priv(hw);
 544
 545        value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL);
 546        value8 |= EN_AMPDU_RTY_NEW;
 547        rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8);
 548        /* Set ACK timeout */
 549        rtl_write_byte(rtlpriv, REG_ACKTO, 0x40);
 550}
 551
 552void rtl92c_disable_fast_edca(struct ieee80211_hw *hw)
 553{
 554        struct rtl_priv *rtlpriv = rtl_priv(hw);
 555
 556        rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0);
 557}
 558
 559void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T)
 560{
 561        struct rtl_priv *rtlpriv = rtl_priv(hw);
 562        u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T;
 563
 564        rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value);
 565}
 566
 567/*==============================================================*/
 568
 569static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 570                                      struct rtl_stats *pstats,
 571                                      struct rx_desc_92c *p_desc,
 572                                      struct rx_fwinfo_92c *p_drvinfo,
 573                                      bool packet_match_bssid,
 574                                      bool packet_toself,
 575                                      bool packet_beacon)
 576{
 577        struct rtl_priv *rtlpriv = rtl_priv(hw);
 578        struct rtl_phy *rtlphy = &(rtlpriv->phy);
 579        struct phy_sts_cck_8192s_t *cck_buf;
 580        s8 rx_pwr_all = 0, rx_pwr[4];
 581        u8 rf_rx_num = 0, evm, pwdb_all;
 582        u8 i, max_spatial_stream;
 583        u32 rssi, total_rssi = 0;
 584        bool in_powersavemode = false;
 585        bool is_cck_rate;
 586        __le32 *pdesc = (__le32 *)p_desc;
 587
 588        is_cck_rate = RX_HAL_IS_CCK_RATE(p_desc->rxmcs);
 589        pstats->packet_matchbssid = packet_match_bssid;
 590        pstats->packet_toself = packet_toself;
 591        pstats->packet_beacon = packet_beacon;
 592        pstats->is_cck = is_cck_rate;
 593        pstats->RX_SIGQ[0] = -1;
 594        pstats->RX_SIGQ[1] = -1;
 595        if (is_cck_rate) {
 596                u8 report, cck_highpwr;
 597
 598                cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
 599                if (!in_powersavemode)
 600                        cck_highpwr = rtlphy->cck_high_power;
 601                else
 602                        cck_highpwr = false;
 603                if (!cck_highpwr) {
 604                        u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 605
 606                        report = cck_buf->cck_agc_rpt & 0xc0;
 607                        report = report >> 6;
 608                        switch (report) {
 609                        case 0x3:
 610                                rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
 611                                break;
 612                        case 0x2:
 613                                rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
 614                                break;
 615                        case 0x1:
 616                                rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
 617                                break;
 618                        case 0x0:
 619                                rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
 620                                break;
 621                        }
 622                } else {
 623                        u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
 624
 625                        report = p_drvinfo->cfosho[0] & 0x60;
 626                        report = report >> 5;
 627                        switch (report) {
 628                        case 0x3:
 629                                rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1);
 630                                break;
 631                        case 0x2:
 632                                rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1);
 633                                break;
 634                        case 0x1:
 635                                rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1);
 636                                break;
 637                        case 0x0:
 638                                rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1);
 639                                break;
 640                        }
 641                }
 642                pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 643                pstats->rx_pwdb_all = pwdb_all;
 644                pstats->recvsignalpower = rx_pwr_all;
 645                if (packet_match_bssid) {
 646                        u8 sq;
 647
 648                        if (pstats->rx_pwdb_all > 40)
 649                                sq = 100;
 650                        else {
 651                                sq = cck_buf->sq_rpt;
 652                                if (sq > 64)
 653                                        sq = 0;
 654                                else if (sq < 20)
 655                                        sq = 100;
 656                                else
 657                                        sq = ((64 - sq) * 100) / 44;
 658                        }
 659                        pstats->signalquality = sq;
 660                        pstats->RX_SIGQ[0] = sq;
 661                        pstats->RX_SIGQ[1] = -1;
 662                }
 663        } else {
 664                rtlpriv->dm.rfpath_rxenable[0] =
 665                    rtlpriv->dm.rfpath_rxenable[1] = true;
 666                for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) {
 667                        if (rtlpriv->dm.rfpath_rxenable[i])
 668                                rf_rx_num++;
 669                        rx_pwr[i] =
 670                            ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110;
 671                        rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
 672                        total_rssi += rssi;
 673                        rtlpriv->stats.rx_snr_db[i] =
 674                            (long)(p_drvinfo->rxsnr[i] / 2);
 675
 676                        if (packet_match_bssid)
 677                                pstats->rx_mimo_signalstrength[i] = (u8) rssi;
 678                }
 679                rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
 680                pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
 681                pstats->rx_pwdb_all = pwdb_all;
 682                pstats->rxpower = rx_pwr_all;
 683                pstats->recvsignalpower = rx_pwr_all;
 684                if (get_rx_desc_rx_mcs(pdesc) &&
 685                    get_rx_desc_rx_mcs(pdesc) >= DESC_RATEMCS8 &&
 686                    get_rx_desc_rx_mcs(pdesc) <= DESC_RATEMCS15)
 687                        max_spatial_stream = 2;
 688                else
 689                        max_spatial_stream = 1;
 690                for (i = 0; i < max_spatial_stream; i++) {
 691                        evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
 692                        if (packet_match_bssid) {
 693                                if (i == 0)
 694                                        pstats->signalquality =
 695                                            (u8) (evm & 0xff);
 696                                pstats->RX_SIGQ[i] =
 697                                    (u8) (evm & 0xff);
 698                        }
 699                }
 700        }
 701        if (is_cck_rate)
 702                pstats->signalstrength =
 703                    (u8)(rtl_signal_scale_mapping(hw, pwdb_all));
 704        else if (rf_rx_num != 0)
 705                pstats->signalstrength =
 706                    (u8)(rtl_signal_scale_mapping(hw, total_rssi /= rf_rx_num));
 707}
 708
 709void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 710                                               struct sk_buff *skb,
 711                                               struct rtl_stats *pstats,
 712                                               struct rx_desc_92c *pdesc,
 713                                               struct rx_fwinfo_92c *p_drvinfo)
 714{
 715        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 716        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 717        struct ieee80211_hdr *hdr;
 718        u8 *tmp_buf;
 719        u8 *praddr;
 720        __le16 fc;
 721        u16 type, cpu_fc;
 722        bool packet_matchbssid, packet_toself, packet_beacon = false;
 723
 724        tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
 725        hdr = (struct ieee80211_hdr *)tmp_buf;
 726        fc = hdr->frame_control;
 727        cpu_fc = le16_to_cpu(fc);
 728        type = WLAN_FC_GET_TYPE(fc);
 729        praddr = hdr->addr1;
 730        packet_matchbssid =
 731            ((IEEE80211_FTYPE_CTL != type) &&
 732             ether_addr_equal(mac->bssid,
 733                              (cpu_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
 734                              (cpu_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
 735                              hdr->addr3) &&
 736             (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
 737
 738        packet_toself = packet_matchbssid &&
 739            ether_addr_equal(praddr, rtlefuse->dev_addr);
 740        if (ieee80211_is_beacon(fc))
 741                packet_beacon = true;
 742        _rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 743                                   packet_matchbssid, packet_toself,
 744                                   packet_beacon);
 745        rtl_process_phyinfo(hw, tmp_buf, pstats);
 746}
 747