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rt28xx.c
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rt28xx.c
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/*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2010, Ralink Technology, Inc.
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* 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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
*************************************************************************/
#ifdef RT28xx
#include "rt_config.h"
VOID RT28xx_ChipSwitchChannel(
IN PRTMP_ADAPTER pAd,
IN UCHAR Channel,
IN BOOLEAN bScan)
{
CHAR TxPwer = 0, TxPwer2 = DEFAULT_RF_TX_POWER; /*Bbp94 = BBPR94_DEFAULT, TxPwer2 = DEFAULT_RF_TX_POWER;*/
UCHAR index;
UINT32 Value = 0; /*BbpReg, Value;*/
UCHAR RFValue;
UINT32 i = 0;
ULONG R2 = 0, R3 = DEFAULT_RF_TX_POWER, R4 = 0;
RTMP_RF_REGS *RFRegTable;
i = i; /* avoid compile warning */
RFValue = 0;
/* Search Tx power value*/
/*
We can't use ChannelList to search channel, since some central channl's txpowr doesn't list
in ChannelList, so use TxPower array instead.
*/
for (index = 0; index < MAX_NUM_OF_CHANNELS; index++)
{
if (Channel == pAd->TxPower[index].Channel)
{
TxPwer = pAd->TxPower[index].Power;
TxPwer2 = pAd->TxPower[index].Power2;
break;
}
}
if (index == MAX_NUM_OF_CHANNELS)
{
DBGPRINT(RT_DEBUG_ERROR, ("AsicSwitchChannel: Can't find the Channel#%d \n", Channel));
}
RFRegTable = RF2850RegTable;
switch (pAd->RfIcType)
{
case RFIC_2820:
case RFIC_2850:
case RFIC_2720:
case RFIC_2750:
for (index = 0; index < NUM_OF_2850_CHNL; index++)
{
if (Channel == RFRegTable[index].Channel)
{
R2 = RFRegTable[index].R2;
if (pAd->Antenna.field.TxPath == 1)
{
R2 |= 0x4000; /*If TXpath is 1, bit 14 = 1;*/
}
if ((pAd->Antenna.field.RxPath == 2)
)
{
R2 |= 0x40; /*write 1 to off Rxpath.*/
}
else if ((pAd->Antenna.field.RxPath == 1)
)
{
R2 |= 0x20040; /*write 1 to off RxPath*/
}
if (Channel > 14)
{
/* initialize R3, R4*/
R3 = (RFRegTable[index].R3 & 0xffffc1ff);
R4 = (RFRegTable[index].R4 & (~0x001f87c0)) | (pAd->RfFreqOffset << 15);
/* 5G band power range: 0xF9~0X0F, TX0 Reg3 bit9/TX1 Reg4 bit6="0" means the TX power reduce 7dB*/
/*R3*/
if ((TxPwer >= -7) && (TxPwer < 0))
{
TxPwer = (7+TxPwer);
/* TxPwer is not possible larger than 15 */
R3 |= (TxPwer << 10);
DBGPRINT(RT_DEBUG_TRACE, ("AsicSwitchChannel: TxPwer=%d \n", TxPwer));
}
else
{
TxPwer = (TxPwer > 0xF) ? (0xF) : (TxPwer);
R3 |= (TxPwer << 10) | (1 << 9);
}
/* R4*/
if ((TxPwer2 >= -7) && (TxPwer2 < 0))
{
TxPwer2 = (7+TxPwer2);
R4 |= (TxPwer2 << 7);
DBGPRINT(RT_DEBUG_TRACE, ("AsicSwitchChannel: TxPwer2=%d \n", TxPwer2));
}
else
{
TxPwer2 = (TxPwer2 > 0xF) ? (0xF) : (TxPwer2);
R4 |= (TxPwer2 << 7) | (1 << 6);
}
}
else
{
R3 = (RFRegTable[index].R3 & 0xffffc1ff) | (TxPwer << 9); /* set TX power0*/
R4 = (RFRegTable[index].R4 & (~0x001f87c0)) | (pAd->RfFreqOffset << 15) | (TxPwer2 <<6);/* Set freq Offset & TxPwr1*/
}
/* Based on BBP current mode before changing RF channel.*/
if (!bScan && (pAd->CommonCfg.BBPCurrentBW == BW_40)
)
{
R4 |=0x200000;
}
/* Update variables*/
pAd->LatchRfRegs.Channel = Channel;
pAd->LatchRfRegs.R1 = RFRegTable[index].R1;
pAd->LatchRfRegs.R2 = R2;
pAd->LatchRfRegs.R3 = R3;
pAd->LatchRfRegs.R4 = R4;
/* Set RF value 1's set R3[bit2] = [0]*/
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R1);
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R2);
RTMP_RF_IO_WRITE32(pAd, (pAd->LatchRfRegs.R3 & (~0x04)));
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R4);
RTMPusecDelay(200);
/* Set RF value 2's set R3[bit2] = [1]*/
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R1);
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R2);
RTMP_RF_IO_WRITE32(pAd, (pAd->LatchRfRegs.R3 | 0x04));
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R4);
RTMPusecDelay(200);
/* Set RF value 3's set R3[bit2] = [0]*/
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R1);
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R2);
RTMP_RF_IO_WRITE32(pAd, (pAd->LatchRfRegs.R3 & (~0x04)));
RTMP_RF_IO_WRITE32(pAd, pAd->LatchRfRegs.R4);
break;
}
}
DBGPRINT(RT_DEBUG_TRACE, ("SwitchChannel#%d(RF=%d, Pwr0=%lu, Pwr1=%lu, %dT) to , R1=0x%08x, R2=0x%08x, R3=0x%08x, R4=0x%08x\n",
Channel,
pAd->RfIcType,
(R3 & 0x00003e00) >> 9,
(R4 & 0x000007c0) >> 6,
pAd->Antenna.field.TxPath,
pAd->LatchRfRegs.R1,
pAd->LatchRfRegs.R2,
pAd->LatchRfRegs.R3,
pAd->LatchRfRegs.R4));
break;
default:
DBGPRINT(RT_DEBUG_TRACE, ("SwitchChannel#%d : unknown RFIC=%d\n", Channel, pAd->RfIcType));
break;
}
/* Change BBP setting during siwtch from a->g, g->a*/
if (Channel <= 14)
{
ULONG TxPinCfg = 0x00050F0A;/*Gary 2007/08/09 0x050A0A*/
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R62, (0x37 - GET_LNA_GAIN(pAd)));
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R63, (0x37 - GET_LNA_GAIN(pAd)));
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R64, (0x37 - GET_LNA_GAIN(pAd)));
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R86, 0);/*(0x44 - GET_LNA_GAIN(pAd))); According the Rory's suggestion to solve the middle range issue.*/
/* Rx High power VGA offset for LNA select*/
{
if (pAd->NicConfig2.field.ExternalLNAForG)
{
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R82, 0x62);
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R75, 0x46);
}
else
{
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R82, 0x84);
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R75, 0x50);
}
}
/* 5G band selection PIN, bit1 and bit2 are complement*/
RTMP_IO_READ32(pAd, TX_BAND_CFG, &Value);
Value &= (~0x6);
Value |= (0x04);
RTMP_IO_WRITE32(pAd, TX_BAND_CFG, Value);
/* Turn off unused PA or LNA when only 1T or 1R*/
if (pAd->Antenna.field.TxPath == 1)
{
TxPinCfg &= 0xFFFFFFF3;
}
if (pAd->Antenna.field.RxPath == 1)
{
TxPinCfg &= 0xFFFFF3FF;
}
RTMP_IO_WRITE32(pAd, TX_PIN_CFG, TxPinCfg);
RtmpUpdateFilterCoefficientControl(pAd, Channel);
}
else
{
ULONG TxPinCfg = 0x00050F05;/*Gary 2007/8/9 0x050505*/
UINT8 bbpValue;
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R62, (0x37 - GET_LNA_GAIN(pAd)));
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R63, (0x37 - GET_LNA_GAIN(pAd)));
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R64, (0x37 - GET_LNA_GAIN(pAd)));
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R86, 0);/*(0x44 - GET_LNA_GAIN(pAd))); According the Rory's suggestion to solve the middle range issue. */
/* Set the BBP_R82 value here */
bbpValue = 0xF2;
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R82, bbpValue);
/* Rx High power VGA offset for LNA select*/
if (pAd->NicConfig2.field.ExternalLNAForA)
{
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R75, 0x46);
}
else
{
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R75, 0x50);
}
/* 5G band selection PIN, bit1 and bit2 are complement*/
RTMP_IO_READ32(pAd, TX_BAND_CFG, &Value);
Value &= (~0x6);
Value |= (0x02);
RTMP_IO_WRITE32(pAd, TX_BAND_CFG, Value);
/* Turn off unused PA or LNA when only 1T or 1R*/
{
/* Turn off unused PA or LNA when only 1T or 1R*/
if (pAd->Antenna.field.TxPath == 1)
{
TxPinCfg &= 0xFFFFFFF3;
}
if (pAd->Antenna.field.RxPath == 1)
{
TxPinCfg &= 0xFFFFF3FF;
}
}
RTMP_IO_WRITE32(pAd, TX_PIN_CFG, TxPinCfg);
}
/* R66 should be set according to Channel and use 20MHz when scanning*/
if (bScan)
RTMPSetAGCInitValue(pAd, BW_20);
else
RTMPSetAGCInitValue(pAd, pAd->CommonCfg.BBPCurrentBW);
/*
On 11A, We should delay and wait RF/BBP to be stable
and the appropriate time should be 1000 micro seconds
005/06/05 - On 11G, We also need this delay time. Otherwise it's difficult to pass the WHQL.
*/
RTMPusecDelay(1000);
}
#endif /*RT28xx */