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62eb734b49
Remove misc typedefs. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
197 lines
4.7 KiB
C
197 lines
4.7 KiB
C
/*
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*************************************************************************
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* Ralink Tech Inc.
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* 5F., No.36, Taiyuan St., Jhubei City,
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* Hsinchu County 302,
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* Taiwan, R.O.C.
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*
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* (c) Copyright 2002-2007, Ralink Technology, Inc.
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*
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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* *
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*************************************************************************
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Module Name:
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ee_prom.c
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Abstract:
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Miniport generic portion header file
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Revision History:
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Who When What
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-------- ---------- ----------------------------------------------
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*/
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#include "../rt_config.h"
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/* IRQL = PASSIVE_LEVEL */
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static inline void RaiseClock(struct rt_rtmp_adapter *pAd, u32 * x)
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{
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*x = *x | EESK;
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, *x);
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RTMPusecDelay(1); /* Max frequency = 1MHz in Spec. definition */
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}
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/* IRQL = PASSIVE_LEVEL */
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static inline void LowerClock(struct rt_rtmp_adapter *pAd, u32 * x)
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{
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*x = *x & ~EESK;
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, *x);
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RTMPusecDelay(1);
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}
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/* IRQL = PASSIVE_LEVEL */
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static inline u16 ShiftInBits(struct rt_rtmp_adapter *pAd)
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{
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u32 x, i;
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u16 data = 0;
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RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
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x &= ~(EEDO | EEDI);
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for (i = 0; i < 16; i++) {
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data = data << 1;
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RaiseClock(pAd, &x);
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RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
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LowerClock(pAd, &x); /*prevent read failed */
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x &= ~(EEDI);
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if (x & EEDO)
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data |= 1;
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}
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return data;
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}
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/* IRQL = PASSIVE_LEVEL */
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static inline void ShiftOutBits(struct rt_rtmp_adapter *pAd,
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u16 data, u16 count)
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{
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u32 x, mask;
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mask = 0x01 << (count - 1);
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RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
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x &= ~(EEDO | EEDI);
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do {
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x &= ~EEDI;
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if (data & mask)
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x |= EEDI;
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
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RaiseClock(pAd, &x);
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LowerClock(pAd, &x);
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mask = mask >> 1;
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} while (mask);
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x &= ~EEDI;
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
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}
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/* IRQL = PASSIVE_LEVEL */
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static inline void EEpromCleanup(struct rt_rtmp_adapter *pAd)
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{
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u32 x;
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RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
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x &= ~(EECS | EEDI);
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
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RaiseClock(pAd, &x);
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LowerClock(pAd, &x);
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}
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static inline void EWEN(struct rt_rtmp_adapter *pAd)
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{
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u32 x;
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/* reset bits and set EECS */
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RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
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x &= ~(EEDI | EEDO | EESK);
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x |= EECS;
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
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/* kick a pulse */
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RaiseClock(pAd, &x);
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LowerClock(pAd, &x);
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/* output the read_opcode and six pulse in that order */
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ShiftOutBits(pAd, EEPROM_EWEN_OPCODE, 5);
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ShiftOutBits(pAd, 0, 6);
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EEpromCleanup(pAd);
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}
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static inline void EWDS(struct rt_rtmp_adapter *pAd)
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{
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u32 x;
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/* reset bits and set EECS */
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RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
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x &= ~(EEDI | EEDO | EESK);
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x |= EECS;
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
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/* kick a pulse */
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RaiseClock(pAd, &x);
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LowerClock(pAd, &x);
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/* output the read_opcode and six pulse in that order */
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ShiftOutBits(pAd, EEPROM_EWDS_OPCODE, 5);
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ShiftOutBits(pAd, 0, 6);
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EEpromCleanup(pAd);
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}
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/* IRQL = PASSIVE_LEVEL */
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int rtmp_ee_prom_read16(struct rt_rtmp_adapter *pAd,
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u16 Offset, u16 * pValue)
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{
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u32 x;
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u16 data;
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Offset /= 2;
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/* reset bits and set EECS */
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RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
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x &= ~(EEDI | EEDO | EESK);
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x |= EECS;
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RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
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/* patch can not access e-Fuse issue */
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if (!(IS_RT3090(pAd) || IS_RT3572(pAd) || IS_RT3390(pAd))) {
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/* kick a pulse */
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RaiseClock(pAd, &x);
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LowerClock(pAd, &x);
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}
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/* output the read_opcode and register number in that order */
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ShiftOutBits(pAd, EEPROM_READ_OPCODE, 3);
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ShiftOutBits(pAd, Offset, pAd->EEPROMAddressNum);
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/* Now read the data (16 bits) in from the selected EEPROM word */
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data = ShiftInBits(pAd);
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EEpromCleanup(pAd);
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*pValue = data;
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return NDIS_STATUS_SUCCESS;
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}
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