/****************************************************************************** * * Copyright(c) 2009-2010 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * The full GNU General Public License is included in this distribution in the * file called LICENSE. * * Contact Information: * wlanfae * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, * Hsinchu 300, Taiwan. * * Larry Finger * ****************************************************************************/ #include #include "../wifi.h" #include "../pci.h" #include "../usb.h" #include "../ps.h" #include "../cam.h" #include "reg.h" #include "def.h" #include "phy.h" #include "rf.h" #include "dm.h" #include "mac.h" #include "trx.h" /* macro to shorten lines */ #define LINK_Q ui_link_quality #define RX_EVM rx_evm_percentage #define RX_SIGQ rx_mimo_signalquality void rtl92c_read_chip_version(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_phy *rtlphy = &(rtlpriv->phy); struct rtl_hal *rtlhal = rtl_hal(rtlpriv); enum version_8192c chip_version = VERSION_UNKNOWN; u32 value32; value32 = rtl_read_dword(rtlpriv, REG_SYS_CFG); if (value32 & TRP_VAUX_EN) { chip_version = (value32 & TYPE_ID) ? VERSION_TEST_CHIP_92C : VERSION_TEST_CHIP_88C; } else { /* Normal mass production chip. */ chip_version = NORMAL_CHIP; chip_version |= ((value32 & TYPE_ID) ? CHIP_92C : 0); chip_version |= ((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : 0); /* RTL8723 with BT function. */ chip_version |= ((value32 & BT_FUNC) ? CHIP_8723 : 0); if (IS_VENDOR_UMC(chip_version)) chip_version |= ((value32 & CHIP_VER_RTL_MASK) ? CHIP_VENDOR_UMC_B_CUT : 0); if (IS_92C_SERIAL(chip_version)) { value32 = rtl_read_dword(rtlpriv, REG_HPON_FSM); chip_version |= ((CHIP_BONDING_IDENTIFIER(value32) == CHIP_BONDING_92C_1T2R) ? CHIP_92C_1T2R : 0); } else if (IS_8723_SERIES(chip_version)) { value32 = rtl_read_dword(rtlpriv, REG_GPIO_OUTSTS); chip_version |= ((value32 & RF_RL_ID) ? CHIP_8723_DRV_REV : 0); } } rtlhal->version = (enum version_8192c)chip_version; switch (rtlhal->version) { case VERSION_NORMAL_TSMC_CHIP_92C_1T2R: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_B_CHIP_92C.\n")); break; case VERSION_NORMAL_TSMC_CHIP_92C: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_TSMC_CHIP_92C.\n")); break; case VERSION_NORMAL_TSMC_CHIP_88C: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_TSMC_CHIP_88C.\n")); break; case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_UMC_CHIP_i" "92C_1T2R_A_CUT.\n")); break; case VERSION_NORMAL_UMC_CHIP_92C_A_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_UMC_CHIP_" "92C_A_CUT.\n")); break; case VERSION_NORMAL_UMC_CHIP_88C_A_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_UMC_CHIP" "_88C_A_CUT.\n")); break; case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_UMC_CHIP" "_92C_1T2R_B_CUT.\n")); break; case VERSION_NORMAL_UMC_CHIP_92C_B_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_UMC_CHIP" "_92C_B_CUT.\n")); break; case VERSION_NORMAL_UMC_CHIP_88C_B_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMAL_UMC_CHIP" "_88C_B_CUT.\n")); break; case VERSION_NORMA_UMC_CHIP_8723_1T1R_A_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMA_UMC_CHIP" "_8723_1T1R_A_CUT.\n")); break; case VERSION_NORMA_UMC_CHIP_8723_1T1R_B_CUT: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_NORMA_UMC_CHIP" "_8723_1T1R_B_CUT.\n")); break; case VERSION_TEST_CHIP_92C: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_TEST_CHIP_92C.\n")); break; case VERSION_TEST_CHIP_88C: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: VERSION_TEST_CHIP_88C.\n")); break; default: RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, ("Chip Version ID: ???????????????.\n")); break; } if (IS_92C_SERIAL(rtlhal->version)) rtlphy->rf_type = (IS_92C_1T2R(rtlhal->version)) ? RF_1T2R : RF_2T2R; else rtlphy->rf_type = RF_1T1R; RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("Chip RF Type: %s\n", (rtlphy->rf_type == RF_2T2R) ? "RF_2T2R" : "RF_1T1R")); if (get_rf_type(rtlphy) == RF_1T1R) rtlpriv->dm.rfpath_rxenable[0] = true; else rtlpriv->dm.rfpath_rxenable[0] = rtlpriv->dm.rfpath_rxenable[1] = true; RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("VersionID = 0x%4x\n", rtlhal->version)); } /** * writeLLT - LLT table write access * @io: io callback * @address: LLT logical address. * @data: LLT data content * * Realtek hardware access function. * */ bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data) { struct rtl_priv *rtlpriv = rtl_priv(hw); bool status = true; long count = 0; u32 value = _LLT_INIT_ADDR(address) | _LLT_INIT_DATA(data) | _LLT_OP(_LLT_WRITE_ACCESS); rtl_write_dword(rtlpriv, REG_LLT_INIT, value); do { value = rtl_read_dword(rtlpriv, REG_LLT_INIT); if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value)) break; if (count > POLLING_LLT_THRESHOLD) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("Failed to polling write LLT done at" " address %d! _LLT_OP_VALUE(%x)\n", address, _LLT_OP_VALUE(value))); status = false; break; } } while (++count); return status; } /** * rtl92c_init_LLT_table - Init LLT table * @io: io callback * @boundary: * * Realtek hardware access function. * */ bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary) { bool rst = true; u32 i; for (i = 0; i < (boundary - 1); i++) { rst = rtl92c_llt_write(hw, i , i + 1); if (true != rst) { printk(KERN_ERR "===> %s #1 fail\n", __func__); return rst; } } /* end of list */ rst = rtl92c_llt_write(hw, (boundary - 1), 0xFF); if (true != rst) { printk(KERN_ERR "===> %s #2 fail\n", __func__); return rst; } /* Make the other pages as ring buffer * This ring buffer is used as beacon buffer if we config this MAC * as two MAC transfer. * Otherwise used as local loopback buffer. */ for (i = boundary; i < LLT_LAST_ENTRY_OF_TX_PKT_BUFFER; i++) { rst = rtl92c_llt_write(hw, i, (i + 1)); if (true != rst) { printk(KERN_ERR "===> %s #3 fail\n", __func__); return rst; } } /* Let last entry point to the start entry of ring buffer */ rst = rtl92c_llt_write(hw, LLT_LAST_ENTRY_OF_TX_PKT_BUFFER, boundary); if (true != rst) { printk(KERN_ERR "===> %s #4 fail\n", __func__); return rst; } return rst; } void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index, u8 *p_macaddr, bool is_group, u8 enc_algo, bool is_wepkey, bool clear_all) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); u8 *macaddr = p_macaddr; u32 entry_id = 0; bool is_pairwise = false; static u8 cam_const_addr[4][6] = { {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} }; static u8 cam_const_broad[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; if (clear_all) { u8 idx = 0; u8 cam_offset = 0; u8 clear_number = 5; RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("clear_all\n")); for (idx = 0; idx < clear_number; idx++) { rtl_cam_mark_invalid(hw, cam_offset + idx); rtl_cam_empty_entry(hw, cam_offset + idx); if (idx < 5) { memset(rtlpriv->sec.key_buf[idx], 0, MAX_KEY_LEN); rtlpriv->sec.key_len[idx] = 0; } } } else { switch (enc_algo) { case WEP40_ENCRYPTION: enc_algo = CAM_WEP40; break; case WEP104_ENCRYPTION: enc_algo = CAM_WEP104; break; case TKIP_ENCRYPTION: enc_algo = CAM_TKIP; break; case AESCCMP_ENCRYPTION: enc_algo = CAM_AES; break; default: RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("iillegal switch case\n")); enc_algo = CAM_TKIP; break; } if (is_wepkey || rtlpriv->sec.use_defaultkey) { macaddr = cam_const_addr[key_index]; entry_id = key_index; } else { if (is_group) { macaddr = cam_const_broad; entry_id = key_index; } else { key_index = PAIRWISE_KEYIDX; entry_id = CAM_PAIRWISE_KEY_POSITION; is_pairwise = true; } } if (rtlpriv->sec.key_len[key_index] == 0) { RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("delete one entry\n")); rtl_cam_delete_one_entry(hw, p_macaddr, entry_id); } else { RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD, ("The insert KEY length is %d\n", rtlpriv->sec.key_len[PAIRWISE_KEYIDX])); RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD, ("The insert KEY is %x %x\n", rtlpriv->sec.key_buf[0][0], rtlpriv->sec.key_buf[0][1])); RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("add one entry\n")); if (is_pairwise) { RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD, "Pairwiase Key content :", rtlpriv->sec.pairwise_key, rtlpriv->sec. key_len[PAIRWISE_KEYIDX]); RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("set Pairwiase key\n")); rtl_cam_add_one_entry(hw, macaddr, key_index, entry_id, enc_algo, CAM_CONFIG_NO_USEDK, rtlpriv->sec. key_buf[key_index]); } else { RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, ("set group key\n")); if (mac->opmode == NL80211_IFTYPE_ADHOC) { rtl_cam_add_one_entry(hw, rtlefuse->dev_addr, PAIRWISE_KEYIDX, CAM_PAIRWISE_KEY_POSITION, enc_algo, CAM_CONFIG_NO_USEDK, rtlpriv->sec.key_buf [entry_id]); } rtl_cam_add_one_entry(hw, macaddr, key_index, entry_id, enc_algo, CAM_CONFIG_NO_USEDK, rtlpriv->sec.key_buf[entry_id]); } } } } u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS); } void rtl92c_enable_interrupt(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); if (IS_HARDWARE_TYPE_8192CE(rtlhal)) { rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF); rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF); } else { rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] & 0xFFFFFFFF); rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] & 0xFFFFFFFF); } } void rtl92c_init_interrupt(struct ieee80211_hw *hw) { rtl92c_enable_interrupt(hw); } void rtl92c_disable_interrupt(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED); rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED); } void rtl92c_set_qos(struct ieee80211_hw *hw, int aci) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); u32 u4b_ac_param; rtl92c_dm_init_edca_turbo(hw); u4b_ac_param = (u32) mac->ac[aci].aifs; u4b_ac_param |= ((u32) le16_to_cpu(mac->ac[aci].cw_min) & 0xF) << AC_PARAM_ECW_MIN_OFFSET; u4b_ac_param |= ((u32) le16_to_cpu(mac->ac[aci].cw_max) & 0xF) << AC_PARAM_ECW_MAX_OFFSET; u4b_ac_param |= (u32) le16_to_cpu(mac->ac[aci].tx_op) << AC_PARAM_TXOP_OFFSET; RT_TRACE(rtlpriv, COMP_QOS, DBG_LOUD, ("queue:%x, ac_param:%x\n", aci, u4b_ac_param)); switch (aci) { case AC1_BK: rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, u4b_ac_param); break; case AC0_BE: rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, u4b_ac_param); break; case AC2_VI: rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, u4b_ac_param); break; case AC3_VO: rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, u4b_ac_param); break; default: RT_ASSERT(false, ("invalid aci: %d !\n", aci)); break; } } /*------------------------------------------------------------------------- * HW MAC Address *-------------------------------------------------------------------------*/ void rtl92c_set_mac_addr(struct ieee80211_hw *hw, const u8 *addr) { u32 i; struct rtl_priv *rtlpriv = rtl_priv(hw); for (i = 0 ; i < ETH_ALEN ; i++) rtl_write_byte(rtlpriv, (REG_MACID + i), *(addr+i)); RT_TRACE(rtlpriv, COMP_CMD, DBG_DMESG, ("MAC Address: %02X-%02X-%02X-" "%02X-%02X-%02X\n", rtl_read_byte(rtlpriv, REG_MACID), rtl_read_byte(rtlpriv, REG_MACID+1), rtl_read_byte(rtlpriv, REG_MACID+2), rtl_read_byte(rtlpriv, REG_MACID+3), rtl_read_byte(rtlpriv, REG_MACID+4), rtl_read_byte(rtlpriv, REG_MACID+5))); } void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size); } int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type) { u8 value; struct rtl_priv *rtlpriv = rtl_priv(hw); switch (type) { case NL80211_IFTYPE_UNSPECIFIED: value = NT_NO_LINK; RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("Set Network type to NO LINK!\n")); break; case NL80211_IFTYPE_ADHOC: value = NT_LINK_AD_HOC; RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("Set Network type to Ad Hoc!\n")); break; case NL80211_IFTYPE_STATION: value = NT_LINK_AP; RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("Set Network type to STA!\n")); break; case NL80211_IFTYPE_AP: value = NT_AS_AP; RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("Set Network type to AP!\n")); break; default: RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("Network type %d not support!\n", type)); return -EOPNOTSUPP; } rtl_write_byte(rtlpriv, (REG_CR + 2), value); return 0; } void rtl92c_init_network_type(struct ieee80211_hw *hw) { rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED); } void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw) { u16 value16; u32 value32; struct rtl_priv *rtlpriv = rtl_priv(hw); /* Response Rate Set */ value32 = rtl_read_dword(rtlpriv, REG_RRSR); value32 &= ~RATE_BITMAP_ALL; value32 |= RATE_RRSR_CCK_ONLY_1M; rtl_write_dword(rtlpriv, REG_RRSR, value32); /* SIFS (used in NAV) */ value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10); rtl_write_word(rtlpriv, REG_SPEC_SIFS, value16); /* Retry Limit */ value16 = _LRL(0x30) | _SRL(0x30); rtl_write_dword(rtlpriv, REG_RL, value16); } void rtl92c_init_rate_fallback(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); /* Set Data Auto Rate Fallback Retry Count register. */ rtl_write_dword(rtlpriv, REG_DARFRC, 0x00000000); rtl_write_dword(rtlpriv, REG_DARFRC+4, 0x10080404); rtl_write_dword(rtlpriv, REG_RARFRC, 0x04030201); rtl_write_dword(rtlpriv, REG_RARFRC+4, 0x08070605); } static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs, u8 ctx_sifs) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs); rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs); } static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs, u8 ctx_sifs) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs); rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs); } void rtl92c_init_edca_param(struct ieee80211_hw *hw, u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs) { /* sequence: VO, VI, BE, BK ==> the same as 92C hardware design. * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function. */ u32 value; struct rtl_priv *rtlpriv = rtl_priv(hw); value = (u32)aifs; value |= ((u32)cw_min & 0xF) << 8; value |= ((u32)cw_max & 0xF) << 12; value |= (u32)txop << 16; /* 92C hardware register sequence is the same as queue number. */ rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value); } void rtl92c_init_edca(struct ieee80211_hw *hw) { u16 value16; struct rtl_priv *rtlpriv = rtl_priv(hw); /* disable EDCCA count down, to reduce collison and retry */ value16 = rtl_read_word(rtlpriv, REG_RD_CTRL); value16 |= DIS_EDCA_CNT_DWN; rtl_write_word(rtlpriv, REG_RD_CTRL, value16); /* Update SIFS timing. ?????????? * pHalData->SifsTime = 0x0e0e0a0a; */ rtl92c_set_cck_sifs(hw, 0xa, 0xa); rtl92c_set_ofdm_sifs(hw, 0xe, 0xe); /* Set CCK/OFDM SIFS to be 10us. */ rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a); rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010); rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204); rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004); /* TXOP */ rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B); rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F); rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324); rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226); /* PIFS */ rtl_write_byte(rtlpriv, REG_PIFS, 0x1C); /* AGGR BREAK TIME Register */ rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16); rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040); rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02); rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02); } void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631); rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16); /* init AMPDU aggregation number, tuning for Tx's TP, */ rtl_write_word(rtlpriv, 0x4CA, 0x0708); } void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw, bool infra_mode) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF); } void rtl92c_init_rdg_setting(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF); rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200); rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05); } void rtl92c_init_retry_function(struct ieee80211_hw *hw) { u8 value8; struct rtl_priv *rtlpriv = rtl_priv(hw); value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL); value8 |= EN_AMPDU_RTY_NEW; rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8); /* Set ACK timeout */ rtl_write_byte(rtlpriv, REG_ACKTO, 0x40); } void rtl92c_init_beacon_parameters(struct ieee80211_hw *hw, enum version_8192c version) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtlpriv); rtl_write_word(rtlpriv, REG_TBTT_PROHIBIT, 0x6404);/* ms */ rtl_write_byte(rtlpriv, REG_DRVERLYINT, DRIVER_EARLY_INT_TIME);/*ms*/ rtl_write_byte(rtlpriv, REG_BCNDMATIM, BCN_DMA_ATIME_INT_TIME); if (IS_NORMAL_CHIP(rtlhal->version)) rtl_write_word(rtlpriv, REG_BCNTCFG, 0x660F); else rtl_write_word(rtlpriv, REG_BCNTCFG, 0x66FF); } void rtl92c_disable_fast_edca(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0); } void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T) { struct rtl_priv *rtlpriv = rtl_priv(hw); u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T; rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value); } u16 rtl92c_get_mgt_filter(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); return rtl_read_word(rtlpriv, REG_RXFLTMAP0); } void rtl92c_set_mgt_filter(struct ieee80211_hw *hw, u16 filter) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_word(rtlpriv, REG_RXFLTMAP0, filter); } u16 rtl92c_get_ctrl_filter(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); return rtl_read_word(rtlpriv, REG_RXFLTMAP1); } void rtl92c_set_ctrl_filter(struct ieee80211_hw *hw, u16 filter) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_word(rtlpriv, REG_RXFLTMAP1, filter); } u16 rtl92c_get_data_filter(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); return rtl_read_word(rtlpriv, REG_RXFLTMAP2); } void rtl92c_set_data_filter(struct ieee80211_hw *hw, u16 filter) { struct rtl_priv *rtlpriv = rtl_priv(hw); rtl_write_word(rtlpriv, REG_RXFLTMAP2, filter); } /*==============================================================*/ static u8 _rtl92c_query_rxpwrpercentage(char antpower) { if ((antpower <= -100) || (antpower >= 20)) return 0; else if (antpower >= 0) return 100; else return 100 + antpower; } static u8 _rtl92c_evm_db_to_percentage(char value) { char ret_val; ret_val = value; if (ret_val >= 0) ret_val = 0; if (ret_val <= -33) ret_val = -33; ret_val = 0 - ret_val; ret_val *= 3; if (ret_val == 99) ret_val = 100; return ret_val; } static long _rtl92c_translate_todbm(struct ieee80211_hw *hw, u8 signal_strength_index) { long signal_power; signal_power = (long)((signal_strength_index + 1) >> 1); signal_power -= 95; return signal_power; } static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw, long currsig) { long retsig; if (currsig >= 61 && currsig <= 100) retsig = 90 + ((currsig - 60) / 4); else if (currsig >= 41 && currsig <= 60) retsig = 78 + ((currsig - 40) / 2); else if (currsig >= 31 && currsig <= 40) retsig = 66 + (currsig - 30); else if (currsig >= 21 && currsig <= 30) retsig = 54 + (currsig - 20); else if (currsig >= 5 && currsig <= 20) retsig = 42 + (((currsig - 5) * 2) / 3); else if (currsig == 4) retsig = 36; else if (currsig == 3) retsig = 27; else if (currsig == 2) retsig = 18; else if (currsig == 1) retsig = 9; else retsig = currsig; return retsig; } static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw, struct rtl_stats *pstats, struct rx_desc_92c *pdesc, struct rx_fwinfo_92c *p_drvinfo, bool packet_match_bssid, bool packet_toself, bool packet_beacon) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_phy *rtlphy = &(rtlpriv->phy); struct phy_sts_cck_8192s_t *cck_buf; s8 rx_pwr_all = 0, rx_pwr[4]; u8 rf_rx_num = 0, evm, pwdb_all; u8 i, max_spatial_stream; u32 rssi, total_rssi = 0; bool in_powersavemode = false; bool is_cck_rate; is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc); pstats->packet_matchbssid = packet_match_bssid; pstats->packet_toself = packet_toself; pstats->is_cck = is_cck_rate; pstats->packet_beacon = packet_beacon; pstats->is_cck = is_cck_rate; pstats->RX_SIGQ[0] = -1; pstats->RX_SIGQ[1] = -1; if (is_cck_rate) { u8 report, cck_highpwr; cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo; if (!in_powersavemode) cck_highpwr = rtlphy->cck_high_power; else cck_highpwr = false; if (!cck_highpwr) { u8 cck_agc_rpt = cck_buf->cck_agc_rpt; report = cck_buf->cck_agc_rpt & 0xc0; report = report >> 6; switch (report) { case 0x3: rx_pwr_all = -46 - (cck_agc_rpt & 0x3e); break; case 0x2: rx_pwr_all = -26 - (cck_agc_rpt & 0x3e); break; case 0x1: rx_pwr_all = -12 - (cck_agc_rpt & 0x3e); break; case 0x0: rx_pwr_all = 16 - (cck_agc_rpt & 0x3e); break; } } else { u8 cck_agc_rpt = cck_buf->cck_agc_rpt; report = p_drvinfo->cfosho[0] & 0x60; report = report >> 5; switch (report) { case 0x3: rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1); break; case 0x2: rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1); break; case 0x1: rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1); break; case 0x0: rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1); break; } } pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all); pstats->rx_pwdb_all = pwdb_all; pstats->recvsignalpower = rx_pwr_all; if (packet_match_bssid) { u8 sq; if (pstats->rx_pwdb_all > 40) sq = 100; else { sq = cck_buf->sq_rpt; if (sq > 64) sq = 0; else if (sq < 20) sq = 100; else sq = ((64 - sq) * 100) / 44; } pstats->signalquality = sq; pstats->RX_SIGQ[0] = sq; pstats->RX_SIGQ[1] = -1; } } else { rtlpriv->dm.rfpath_rxenable[0] = rtlpriv->dm.rfpath_rxenable[1] = true; for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) { if (rtlpriv->dm.rfpath_rxenable[i]) rf_rx_num++; rx_pwr[i] = ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110; rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]); total_rssi += rssi; rtlpriv->stats.rx_snr_db[i] = (long)(p_drvinfo->rxsnr[i] / 2); if (packet_match_bssid) pstats->rx_mimo_signalstrength[i] = (u8) rssi; } rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110; pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all); pstats->rx_pwdb_all = pwdb_all; pstats->rxpower = rx_pwr_all; pstats->recvsignalpower = rx_pwr_all; if (GET_RX_DESC_RX_MCS(pdesc) && GET_RX_DESC_RX_MCS(pdesc) >= DESC92C_RATEMCS8 && GET_RX_DESC_RX_MCS(pdesc) <= DESC92C_RATEMCS15) max_spatial_stream = 2; else max_spatial_stream = 1; for (i = 0; i < max_spatial_stream; i++) { evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]); if (packet_match_bssid) { if (i == 0) pstats->signalquality = (u8) (evm & 0xff); pstats->RX_SIGQ[i] = (u8) (evm & 0xff); } } } if (is_cck_rate) pstats->signalstrength = (u8) (_rtl92c_signal_scale_mapping(hw, pwdb_all)); else if (rf_rx_num != 0) pstats->signalstrength = (u8) (_rtl92c_signal_scale_mapping (hw, total_rssi /= rf_rx_num)); } static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw, struct rtl_stats *pstats) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_phy *rtlphy = &(rtlpriv->phy); u8 rfpath; u32 last_rssi, tmpval; if (pstats->packet_toself || pstats->packet_beacon) { rtlpriv->stats.rssi_calculate_cnt++; if (rtlpriv->stats.ui_rssi.total_num++ >= PHY_RSSI_SLID_WIN_MAX) { rtlpriv->stats.ui_rssi.total_num = PHY_RSSI_SLID_WIN_MAX; last_rssi = rtlpriv->stats.ui_rssi.elements[rtlpriv-> stats.ui_rssi.index]; rtlpriv->stats.ui_rssi.total_val -= last_rssi; } rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength; rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi. index++] = pstats->signalstrength; if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX) rtlpriv->stats.ui_rssi.index = 0; tmpval = rtlpriv->stats.ui_rssi.total_val / rtlpriv->stats.ui_rssi.total_num; rtlpriv->stats.signal_strength = _rtl92c_translate_todbm(hw, (u8) tmpval); pstats->rssi = rtlpriv->stats.signal_strength; } if (!pstats->is_cck && pstats->packet_toself) { for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath; rfpath++) { if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath)) continue; if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) { rtlpriv->stats.rx_rssi_percentage[rfpath] = pstats->rx_mimo_signalstrength[rfpath]; } if (pstats->rx_mimo_signalstrength[rfpath] > rtlpriv->stats.rx_rssi_percentage[rfpath]) { rtlpriv->stats.rx_rssi_percentage[rfpath] = ((rtlpriv->stats. rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_mimo_signalstrength[rfpath])) / (RX_SMOOTH_FACTOR); rtlpriv->stats.rx_rssi_percentage[rfpath] = rtlpriv->stats.rx_rssi_percentage[rfpath] + 1; } else { rtlpriv->stats.rx_rssi_percentage[rfpath] = ((rtlpriv->stats. rx_rssi_percentage[rfpath] * (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_mimo_signalstrength[rfpath])) / (RX_SMOOTH_FACTOR); } } } } static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw, struct rtl_stats *pstats) { struct rtl_priv *rtlpriv = rtl_priv(hw); int weighting = 0; if (rtlpriv->stats.recv_signal_power == 0) rtlpriv->stats.recv_signal_power = pstats->recvsignalpower; if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power) weighting = 5; else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power) weighting = (-5); rtlpriv->stats.recv_signal_power = (rtlpriv->stats.recv_signal_power * 5 + pstats->recvsignalpower + weighting) / 6; } static void _rtl92c_process_pwdb(struct ieee80211_hw *hw, struct rtl_stats *pstats) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); long undecorated_smoothed_pwdb = 0; if (mac->opmode == NL80211_IFTYPE_ADHOC) { return; } else { undecorated_smoothed_pwdb = rtlpriv->dm.undecorated_smoothed_pwdb; } if (pstats->packet_toself || pstats->packet_beacon) { if (undecorated_smoothed_pwdb < 0) undecorated_smoothed_pwdb = pstats->rx_pwdb_all; if (pstats->rx_pwdb_all > (u32) undecorated_smoothed_pwdb) { undecorated_smoothed_pwdb = (((undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR); undecorated_smoothed_pwdb = undecorated_smoothed_pwdb + 1; } else { undecorated_smoothed_pwdb = (((undecorated_smoothed_pwdb) * (RX_SMOOTH_FACTOR - 1)) + (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR); } rtlpriv->dm.undecorated_smoothed_pwdb = undecorated_smoothed_pwdb; _rtl92c_update_rxsignalstatistics(hw, pstats); } } static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw, struct rtl_stats *pstats) { struct rtl_priv *rtlpriv = rtl_priv(hw); u32 last_evm = 0, n_stream, tmpval; if (pstats->signalquality != 0) { if (pstats->packet_toself || pstats->packet_beacon) { if (rtlpriv->stats.LINK_Q.total_num++ >= PHY_LINKQUALITY_SLID_WIN_MAX) { rtlpriv->stats.LINK_Q.total_num = PHY_LINKQUALITY_SLID_WIN_MAX; last_evm = rtlpriv->stats.LINK_Q.elements [rtlpriv->stats.LINK_Q.index]; rtlpriv->stats.LINK_Q.total_val -= last_evm; } rtlpriv->stats.LINK_Q.total_val += pstats->signalquality; rtlpriv->stats.LINK_Q.elements [rtlpriv->stats.LINK_Q.index++] = pstats->signalquality; if (rtlpriv->stats.LINK_Q.index >= PHY_LINKQUALITY_SLID_WIN_MAX) rtlpriv->stats.LINK_Q.index = 0; tmpval = rtlpriv->stats.LINK_Q.total_val / rtlpriv->stats.LINK_Q.total_num; rtlpriv->stats.signal_quality = tmpval; rtlpriv->stats.last_sigstrength_inpercent = tmpval; for (n_stream = 0; n_stream < 2; n_stream++) { if (pstats->RX_SIGQ[n_stream] != -1) { if (!rtlpriv->stats.RX_EVM[n_stream]) { rtlpriv->stats.RX_EVM[n_stream] = pstats->RX_SIGQ[n_stream]; } rtlpriv->stats.RX_EVM[n_stream] = ((rtlpriv->stats.RX_EVM [n_stream] * (RX_SMOOTH_FACTOR - 1)) + (pstats->RX_SIGQ [n_stream] * 1)) / (RX_SMOOTH_FACTOR); } } } } else { ; } } static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw, u8 *buffer, struct rtl_stats *pcurrent_stats) { if (!pcurrent_stats->packet_matchbssid && !pcurrent_stats->packet_beacon) return; _rtl92c_process_ui_rssi(hw, pcurrent_stats); _rtl92c_process_pwdb(hw, pcurrent_stats); _rtl92c_process_LINK_Q(hw, pcurrent_stats); } void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw, struct sk_buff *skb, struct rtl_stats *pstats, struct rx_desc_92c *pdesc, struct rx_fwinfo_92c *p_drvinfo) { struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); struct ieee80211_hdr *hdr; u8 *tmp_buf; u8 *praddr; __le16 fc; u16 type, cpu_fc; bool packet_matchbssid, packet_toself, packet_beacon; tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift; hdr = (struct ieee80211_hdr *)tmp_buf; fc = hdr->frame_control; cpu_fc = le16_to_cpu(fc); type = WLAN_FC_GET_TYPE(fc); praddr = hdr->addr1; packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) && (!compare_ether_addr(mac->bssid, (cpu_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : (cpu_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3)) && (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv)); packet_toself = packet_matchbssid && (!compare_ether_addr(praddr, rtlefuse->dev_addr)); if (ieee80211_is_beacon(fc)) packet_beacon = true; _rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo, packet_matchbssid, packet_toself, packet_beacon); _rtl92c_process_phyinfo(hw, tmp_buf, pstats); }