diff options
Diffstat (limited to 'drivers/staging/rt2860/common/rt_rf.c')
| -rw-r--r-- | drivers/staging/rt2860/common/rt_rf.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/drivers/staging/rt2860/common/rt_rf.c b/drivers/staging/rt2860/common/rt_rf.c new file mode 100644 index 000000000000..519121d81040 --- /dev/null +++ b/drivers/staging/rt2860/common/rt_rf.c @@ -0,0 +1,188 @@ +/* + ************************************************************************* + * 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: + rt_rf.c + + Abstract: + Ralink Wireless driver RF related functions + + Revision History: + Who When What + -------- ---------- ---------------------------------------------- +*/ + +#include "../rt_config.h" + +#ifdef RTMP_RF_RW_SUPPORT +/* + ======================================================================== + + Routine Description: Write RT30xx RF register through MAC + + Arguments: + + Return Value: + + IRQL = + + Note: + + ======================================================================== +*/ +int RT30xxWriteRFRegister(struct rt_rtmp_adapter *pAd, + u8 regID, u8 value) +{ + RF_CSR_CFG_STRUC rfcsr; + u32 i = 0; + + do { + RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word); + + if (!rfcsr.field.RF_CSR_KICK) + break; + i++; + } + while ((i < RETRY_LIMIT) + && (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))); + + if ((i == RETRY_LIMIT) + || (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))) { + DBGPRINT_RAW(RT_DEBUG_ERROR, + ("Retry count exhausted or device removed!\n")); + return STATUS_UNSUCCESSFUL; + } + + rfcsr.field.RF_CSR_WR = 1; + rfcsr.field.RF_CSR_KICK = 1; + rfcsr.field.TESTCSR_RFACC_REGNUM = regID; + rfcsr.field.RF_CSR_DATA = value; + + RTMP_IO_WRITE32(pAd, RF_CSR_CFG, rfcsr.word); + + return NDIS_STATUS_SUCCESS; +} + +/* + ======================================================================== + + Routine Description: Read RT30xx RF register through MAC + + Arguments: + + Return Value: + + IRQL = + + Note: + + ======================================================================== +*/ +int RT30xxReadRFRegister(struct rt_rtmp_adapter *pAd, + u8 regID, u8 *pValue) +{ + RF_CSR_CFG_STRUC rfcsr; + u32 i = 0, k = 0; + + for (i = 0; i < MAX_BUSY_COUNT; i++) { + RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word); + + if (rfcsr.field.RF_CSR_KICK == BUSY) { + continue; + } + rfcsr.word = 0; + rfcsr.field.RF_CSR_WR = 0; + rfcsr.field.RF_CSR_KICK = 1; + rfcsr.field.TESTCSR_RFACC_REGNUM = regID; + RTMP_IO_WRITE32(pAd, RF_CSR_CFG, rfcsr.word); + for (k = 0; k < MAX_BUSY_COUNT; k++) { + RTMP_IO_READ32(pAd, RF_CSR_CFG, &rfcsr.word); + + if (rfcsr.field.RF_CSR_KICK == IDLE) + break; + } + if ((rfcsr.field.RF_CSR_KICK == IDLE) && + (rfcsr.field.TESTCSR_RFACC_REGNUM == regID)) { + *pValue = (u8)rfcsr.field.RF_CSR_DATA; + break; + } + } + if (rfcsr.field.RF_CSR_KICK == BUSY) { + DBGPRINT_ERR(("RF read R%d=0x%x fail, i[%d], k[%d]\n", regID, + rfcsr.word, i, k)); + return STATUS_UNSUCCESSFUL; + } + + return STATUS_SUCCESS; +} + +void NICInitRFRegisters(struct rt_rtmp_adapter *pAd) +{ + if (pAd->chipOps.AsicRfInit) + pAd->chipOps.AsicRfInit(pAd); +} + +void RtmpChipOpsRFHook(struct rt_rtmp_adapter *pAd) +{ + struct rt_rtmp_chip_op *pChipOps = &pAd->chipOps; + + pChipOps->pRFRegTable = NULL; + pChipOps->AsicRfInit = NULL; + pChipOps->AsicRfTurnOn = NULL; + pChipOps->AsicRfTurnOff = NULL; + pChipOps->AsicReverseRfFromSleepMode = NULL; + pChipOps->AsicHaltAction = NULL; + /* We depends on RfICType and MACVersion to assign the corresponding operation callbacks. */ + +#ifdef RT30xx + if (IS_RT30xx(pAd)) { + pChipOps->pRFRegTable = RT30xx_RFRegTable; + pChipOps->AsicHaltAction = RT30xxHaltAction; +#ifdef RT3070 + if ((IS_RT3070(pAd) || IS_RT3071(pAd)) + && (pAd->infType == RTMP_DEV_INF_USB)) { + pChipOps->AsicRfInit = NICInitRT3070RFRegisters; + if (IS_RT3071(pAd)) { + pChipOps->AsicRfTurnOff = + RT30xxLoadRFSleepModeSetup; + pChipOps->AsicReverseRfFromSleepMode = + RT30xxReverseRFSleepModeSetup; + } + } +#endif /* RT3070 // */ +#ifdef RT3090 + if (IS_RT3090(pAd) && (pAd->infType == RTMP_DEV_INF_PCI)) { + pChipOps->AsicRfTurnOff = RT30xxLoadRFSleepModeSetup; + pChipOps->AsicRfInit = NICInitRT3090RFRegisters; + pChipOps->AsicReverseRfFromSleepMode = + RT30xxReverseRFSleepModeSetup; + } +#endif /* RT3090 // */ + } +#endif /* RT30xx // */ +} + +#endif /* RTMP_RF_RW_SUPPORT // */ |