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/*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2007, 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. *
* *
*************************************************************************
Module Name:
rt30xx.c
Abstract:
Specific funcitons and variables for RT30xx.
Revision History:
Who When What
-------- ---------- ----------------------------------------------
*/
#ifdef RT30xx
#ifndef RTMP_RF_RW_SUPPORT
#error "You Should Enable compile flag RTMP_RF_RW_SUPPORT for this chip"
#endif /* RTMP_RF_RW_SUPPORT // */
#include "../rt_config.h"
/* */
/* RF register initialization set */
/* */
struct rt_reg_pair RT30xx_RFRegTable[] = {
{RF_R04, 0x40}
,
{RF_R05, 0x03}
,
{RF_R06, 0x02}
,
{RF_R07, 0x70}
,
{RF_R09, 0x0F}
,
{RF_R10, 0x41}
,
{RF_R11, 0x21}
,
{RF_R12, 0x7B}
,
{RF_R14, 0x90}
,
{RF_R15, 0x58}
,
{RF_R16, 0xB3}
,
{RF_R17, 0x92}
,
{RF_R18, 0x2C}
,
{RF_R19, 0x02}
,
{RF_R20, 0xBA}
,
{RF_R21, 0xDB}
,
{RF_R24, 0x16}
,
{RF_R25, 0x01}
,
{RF_R29, 0x1F}
,
};
u8 NUM_RF_REG_PARMS = (sizeof(RT30xx_RFRegTable) / sizeof(struct rt_reg_pair));
/* Antenna divesity use GPIO3 and EESK pin for control */
/* Antenna and EEPROM access are both using EESK pin, */
/* Therefor we should avoid accessing EESK at the same time */
/* Then restore antenna after EEPROM access */
/* The original name of this function is AsicSetRxAnt(), now change to */
/*void AsicSetRxAnt( */
void RT30xxSetRxAnt(struct rt_rtmp_adapter *pAd, u8 Ant)
{
u32 Value;
#ifdef RTMP_MAC_PCI
u32 x;
#endif
if ((pAd->EepromAccess) ||
(RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_RESET_IN_PROGRESS)) ||
(RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS)) ||
(RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_RADIO_OFF)) ||
(RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))) {
return;
}
/* the antenna selection is through firmware and MAC register(GPIO3) */
if (Ant == 0) {
/* Main antenna */
#ifdef RTMP_MAC_PCI
RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
x |= (EESK);
RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
#else
AsicSendCommandToMcu(pAd, 0x73, 0xFF, 0x1, 0x0);
#endif /* RTMP_MAC_PCI // */
RTMP_IO_READ32(pAd, GPIO_CTRL_CFG, &Value);
Value &= ~(0x0808);
RTMP_IO_WRITE32(pAd, GPIO_CTRL_CFG, Value);
DBGPRINT_RAW(RT_DEBUG_TRACE,
("AsicSetRxAnt, switch to main antenna\n"));
} else {
/* Aux antenna */
#ifdef RTMP_MAC_PCI
RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
x &= ~(EESK);
RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
#else
AsicSendCommandToMcu(pAd, 0x73, 0xFF, 0x0, 0x0);
#endif /* RTMP_MAC_PCI // */
RTMP_IO_READ32(pAd, GPIO_CTRL_CFG, &Value);
Value &= ~(0x0808);
Value |= 0x08;
RTMP_IO_WRITE32(pAd, GPIO_CTRL_CFG, Value);
DBGPRINT_RAW(RT_DEBUG_TRACE,
("AsicSetRxAnt, switch to aux antenna\n"));
}
}
/*
========================================================================
Routine Description:
For RF filter calibration purpose
Arguments:
pAd Pointer to our adapter
Return Value:
None
IRQL = PASSIVE_LEVEL
========================================================================
*/
void RTMPFilterCalibration(struct rt_rtmp_adapter *pAd)
{
u8 R55x = 0, value, FilterTarget = 0x1E, BBPValue = 0;
u32 loop = 0, count = 0, loopcnt = 0, ReTry = 0;
u8 RF_R24_Value = 0;
/* Give bbp filter initial value */
pAd->Mlme.CaliBW20RfR24 = 0x1F;
pAd->Mlme.CaliBW40RfR24 = 0x2F; /*Bit[5] must be 1 for BW 40 */
do {
if (loop == 1) { /*BandWidth = 40 MHz */
/* Write 0x27 to RF_R24 to program filter */
RF_R24_Value = 0x27;
RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
if (IS_RT3090(pAd) || IS_RT3572(pAd) || IS_RT3390(pAd))
FilterTarget = 0x15;
else
FilterTarget = 0x19;
/* when calibrate BW40, BBP mask must set to BW40. */
RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
BBPValue &= (~0x18);
BBPValue |= (0x10);
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
/* set to BW40 */
RT30xxReadRFRegister(pAd, RF_R31, &value);
value |= 0x20;
RT30xxWriteRFRegister(pAd, RF_R31, value);
} else { /*BandWidth = 20 MHz */
/* Write 0x07 to RF_R24 to program filter */
RF_R24_Value = 0x07;
RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
if (IS_RT3090(pAd) || IS_RT3572(pAd) || IS_RT3390(pAd))
FilterTarget = 0x13;
else
FilterTarget = 0x16;
/* set to BW20 */
RT30xxReadRFRegister(pAd, RF_R31, &value);
value &= (~0x20);
RT30xxWriteRFRegister(pAd, RF_R31, value);
}
/* Write 0x01 to RF_R22 to enable baseband loopback mode */
RT30xxReadRFRegister(pAd, RF_R22, &value);
value |= 0x01;
RT30xxWriteRFRegister(pAd, RF_R22, value);
/* Write 0x00 to BBP_R24 to set power & frequency of passband test tone */
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R24, 0);
do {
/* Write 0x90 to BBP_R25 to transmit test tone */
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R25, 0x90);
RTMPusecDelay(1000);
/* Read BBP_R55[6:0] for received power, set R55x = BBP_R55[6:0] */
RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R55, &value);
R55x = value & 0xFF;
} while ((ReTry++ < 100) && (R55x == 0));
/* Write 0x06 to BBP_R24 to set power & frequency of stopband test tone */
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R24, 0x06);
while (TRUE) {
/* Write 0x90 to BBP_R25 to transmit test tone */
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R25, 0x90);
/*We need to wait for calibration */
RTMPusecDelay(1000);
RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R55, &value);
value &= 0xFF;
if ((R55x - value) < FilterTarget) {
RF_R24_Value++;
} else if ((R55x - value) == FilterTarget) {
RF_R24_Value++;
count++;
} else {
break;
}
/* prevent infinite loop cause driver hang. */
if (loopcnt++ > 100) {
DBGPRINT(RT_DEBUG_ERROR,
("RTMPFilterCalibration - can't find a valid value, loopcnt=%d stop calibrating",
loopcnt));
break;
}
/* Write RF_R24 to program filter */
RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
}
if (count > 0) {
RF_R24_Value = RF_R24_Value - ((count) ? (1) : (0));
}
/* Store for future usage */
if (loopcnt < 100) {
if (loop++ == 0) {
/*BandWidth = 20 MHz */
pAd->Mlme.CaliBW20RfR24 = (u8)RF_R24_Value;
} else {
/*BandWidth = 40 MHz */
pAd->Mlme.CaliBW40RfR24 = (u8)RF_R24_Value;
break;
}
} else
break;
RT30xxWriteRFRegister(pAd, RF_R24, RF_R24_Value);
/* reset count */
count = 0;
} while (TRUE);
/* */
/* Set back to initial state */
/* */
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R24, 0);
RT30xxReadRFRegister(pAd, RF_R22, &value);
value &= ~(0x01);
RT30xxWriteRFRegister(pAd, RF_R22, value);
/* set BBP back to BW20 */
RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
BBPValue &= (~0x18);
RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
DBGPRINT(RT_DEBUG_TRACE,
("RTMPFilterCalibration - CaliBW20RfR24=0x%x, CaliBW40RfR24=0x%x\n",
pAd->Mlme.CaliBW20RfR24, pAd->Mlme.CaliBW40RfR24));
}
/* add by johnli, RF power sequence setup */
/*
==========================================================================
Description:
Load RF normal operation-mode setup
==========================================================================
*/
void RT30xxLoadRFNormalModeSetup(struct rt_rtmp_adapter *pAd)
{
u8 RFValue;
/* RX0_PD & TX0_PD, RF R1 register Bit 2 & Bit 3 to 0 and RF_BLOCK_en,RX1_PD & TX1_PD, Bit0, Bit 4 & Bit5 to 1 */
RT30xxReadRFRegister(pAd, RF_R01, &RFValue);
RFValue = (RFValue & (~0x0C)) | 0x31;
RT30xxWriteRFRegister(pAd, RF_R01, RFValue);
/* TX_LO2_en, RF R15 register Bit 3 to 0 */
RT30xxReadRFRegister(pAd, RF_R15, &RFValue);
RFValue &= (~0x08);
RT30xxWriteRFRegister(pAd, RF_R15, RFValue);
/* move to NICInitRT30xxRFRegisters
// TX_LO1_en, RF R17 register Bit 3 to 0
RT30xxReadRFRegister(pAd, RF_R17, &RFValue);
RFValue &= (~0x08);
// to fix rx long range issue
if (((pAd->MACVersion & 0xffff) >= 0x0211) && (pAd->NicConfig2.field.ExternalLNAForG == 0))
{
RFValue |= 0x20;
}
// set RF_R17_bit[2:0] equal to EEPROM setting at 0x48h
if (pAd->TxMixerGain24G >= 2)
{
RFValue &= (~0x7); // clean bit [2:0]
RFValue |= pAd->TxMixerGain24G;
}
RT30xxWriteRFRegister(pAd, RF_R17, RFValue);
*/
/* RX_LO1_en, RF R20 register Bit 3 to 0 */
RT30xxReadRFRegister(pAd, RF_R20, &RFValue);
RFValue &= (~0x08);
RT30xxWriteRFRegister(pAd, RF_R20, RFValue);
/* RX_LO2_en, RF R21 register Bit 3 to 0 */
RT30xxReadRFRegister(pAd, RF_R21, &RFValue);
RFValue &= (~0x08);
RT30xxWriteRFRegister(pAd, RF_R21, RFValue);
/* add by johnli, reset RF_R27 when interface down & up to fix throughput problem */
/* LDORF_VC, RF R27 register Bit 2 to 0 */
RT30xxReadRFRegister(pAd, RF_R27, &RFValue);
/* TX to RX IQ glitch(RF_R27) has been fixed in RT3070(F). */
/* Raising RF voltage is no longer needed for RT3070(F) */
if (IS_RT3090(pAd)) { /* RT309x and RT3071/72 */
if ((pAd->MACVersion & 0xffff) < 0x0211)
RFValue = (RFValue & (~0x77)) | 0x3;
else
RFValue = (RFValue & (~0x77));
RT30xxWriteRFRegister(pAd, RF_R27, RFValue);
}
/* end johnli */
}
/*
==========================================================================
Description:
Load RF sleep-mode setup
==========================================================================
*/
void RT30xxLoadRFSleepModeSetup(struct rt_rtmp_adapter *pAd)
{
u8 RFValue;
u32 MACValue;
#ifdef RTMP_MAC_USB
if (!IS_RT3572(pAd))
#endif /* RTMP_MAC_USB // */
{
/* RF_BLOCK_en. RF R1 register Bit 0 to 0 */
RT30xxReadRFRegister(pAd, RF_R01, &RFValue);
RFValue &= (~0x01);
RT30xxWriteRFRegister(pAd, RF_R01, RFValue);
/* VCO_IC, RF R7 register Bit 4 & Bit 5 to 0 */
RT30xxReadRFRegister(pAd, RF_R07, &RFValue);
RFValue &= (~0x30);
RT30xxWriteRFRegister(pAd, RF_R07, RFValue);
/* Idoh, RF R9 register Bit 1, Bit 2 & Bit 3 to 0 */
RT30xxReadRFRegister(pAd, RF_R09, &RFValue);
RFValue &= (~0x0E);
RT30xxWriteRFRegister(pAd, RF_R09, RFValue);
/* RX_CTB_en, RF R21 register Bit 7 to 0 */
RT30xxReadRFRegister(pAd, RF_R21, &RFValue);
RFValue &= (~0x80);
RT30xxWriteRFRegister(pAd, RF_R21, RFValue);
}
if (IS_RT3090(pAd) || /* IS_RT3090 including RT309x and RT3071/72 */
IS_RT3572(pAd) ||
(IS_RT3070(pAd) && ((pAd->MACVersion & 0xffff) < 0x0201))) {
#ifdef RTMP_MAC_USB
if (!IS_RT3572(pAd))
#endif /* RTMP_MAC_USB // */
{
RT30xxReadRFRegister(pAd, RF_R27, &RFValue);
RFValue |= 0x77;
RT30xxWriteRFRegister(pAd, RF_R27, RFValue);
}
RTMP_IO_READ32(pAd, LDO_CFG0, &MACValue);
MACValue |= 0x1D000000;
RTMP_IO_WRITE32(pAd, LDO_CFG0, MACValue);
}
}
/*
==========================================================================
Description:
Reverse RF sleep-mode setup
==========================================================================
*/
void RT30xxReverseRFSleepModeSetup(struct rt_rtmp_adapter *pAd)
{
u8 RFValue;
u32 MACValue;
#ifdef RTMP_MAC_USB
if (!IS_RT3572(pAd))
#endif /* RTMP_MAC_USB // */
{
/* RF_BLOCK_en, RF R1 register Bit 0 to 1 */
RT30xxReadRFRegister(pAd, RF_R01, &RFValue);
RFValue |= 0x01;
RT30xxWriteRFRegister(pAd, RF_R01, RFValue);
/* VCO_IC, RF R7 register Bit 4 & Bit 5 to 1 */
RT30xxReadRFRegister(pAd, RF_R07, &RFValue);
RFValue |= 0x30;
RT30xxWriteRFRegister(pAd, RF_R07, RFValue);
/* Idoh, RF R9 register Bit 1, Bit 2 & Bit 3 to 1 */
RT30xxReadRFRegister(pAd, RF_R09, &RFValue);
RFValue |= 0x0E;
RT30xxWriteRFRegister(pAd, RF_R09, RFValue);
/* RX_CTB_en, RF R21 register Bit 7 to 1 */
RT30xxReadRFRegister(pAd, RF_R21, &RFValue);
RFValue |= 0x80;
RT30xxWriteRFRegister(pAd, RF_R21, RFValue);
}
if (IS_RT3090(pAd) || /* IS_RT3090 including RT309x and RT3071/72 */
IS_RT3572(pAd) ||
IS_RT3390(pAd) ||
(IS_RT3070(pAd) && ((pAd->MACVersion & 0xffff) < 0x0201))) {
#ifdef RTMP_MAC_USB
if (!IS_RT3572(pAd))
#endif /* RTMP_MAC_USB // */
{
RT30xxReadRFRegister(pAd, RF_R27, &RFValue);
if ((pAd->MACVersion & 0xffff) < 0x0211)
RFValue = (RFValue & (~0x77)) | 0x3;
else
RFValue = (RFValue & (~0x77));
RT30xxWriteRFRegister(pAd, RF_R27, RFValue);
}
/* RT3071 version E has fixed this issue */
if ((pAd->NicConfig2.field.DACTestBit == 1)
&& ((pAd->MACVersion & 0xffff) < 0x0211)) {
/* patch tx EVM issue temporarily */
RTMP_IO_READ32(pAd, LDO_CFG0, &MACValue);
MACValue = ((MACValue & 0xE0FFFFFF) | 0x0D000000);
RTMP_IO_WRITE32(pAd, LDO_CFG0, MACValue);
} else {
RTMP_IO_READ32(pAd, LDO_CFG0, &MACValue);
MACValue = ((MACValue & 0xE0FFFFFF) | 0x01000000);
RTMP_IO_WRITE32(pAd, LDO_CFG0, MACValue);
}
}
if (IS_RT3572(pAd))
RT30xxWriteRFRegister(pAd, RF_R08, 0x80);
}
/* end johnli */
void RT30xxHaltAction(struct rt_rtmp_adapter *pAd)
{
u32 TxPinCfg = 0x00050F0F;
/* */
/* Turn off LNA_PE or TRSW_POL */
/* */
if (IS_RT3070(pAd) || IS_RT3071(pAd) || IS_RT3572(pAd)) {
if ((IS_RT3071(pAd) || IS_RT3572(pAd))
#ifdef RTMP_EFUSE_SUPPORT
&& (pAd->bUseEfuse)
#endif /* RTMP_EFUSE_SUPPORT // */
) {
TxPinCfg &= 0xFFFBF0F0; /* bit18 off */
} else {
TxPinCfg &= 0xFFFFF0F0;
}
RTMP_IO_WRITE32(pAd, TX_PIN_CFG, TxPinCfg);
}
}
#endif /* RT30xx // */