Release 4.15 drivers/staging/vt6655/srom.c
/*
* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
* All rights reserved.
*
* 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.
*
* File: srom.c
*
* Purpose:Implement functions to access eeprom
*
* Author: Jerry Chen
*
* Date: Jan 29, 2003
*
* Functions:
* SROMbyReadEmbedded - Embedded read eeprom via MAC
* SROMbWriteEmbedded - Embedded write eeprom via MAC
* SROMvRegBitsOn - Set Bits On in eeprom
* SROMvRegBitsOff - Clear Bits Off in eeprom
* SROMbIsRegBitsOn - Test if Bits On in eeprom
* SROMbIsRegBitsOff - Test if Bits Off in eeprom
* SROMvReadAllContents - Read all contents in eeprom
* SROMvWriteAllContents - Write all contents in eeprom
* SROMvReadEtherAddress - Read Ethernet Address in eeprom
* SROMvWriteEtherAddress - Write Ethernet Address in eeprom
* SROMvReadSubSysVenId - Read Sub_VID and Sub_SysId in eeprom
* SROMbAutoLoad - Auto Load eeprom to MAC register
*
* Revision History:
*
*/
#include "upc.h"
#include "tmacro.h"
#include "mac.h"
#include "srom.h"
/*--------------------- Static Definitions -------------------------*/
/*--------------------- Static Classes ----------------------------*/
/*--------------------- Static Variables --------------------------*/
/*--------------------- Static Functions --------------------------*/
/*--------------------- Export Variables --------------------------*/
/*--------------------- Export Functions --------------------------*/
/*
* Description: Read a byte from EEPROM, by MAC I2C
*
* Parameters:
* In:
* iobase - I/O base address
* byContntOffset - address of EEPROM
* Out:
* none
*
* Return Value: data read
*
*/
unsigned char SROMbyReadEmbedded(void __iomem *iobase,
unsigned char byContntOffset)
{
unsigned short wDelay, wNoACK;
unsigned char byWait;
unsigned char byData;
unsigned char byOrg;
byData = 0xFF;
VNSvInPortB(iobase + MAC_REG_I2MCFG, &byOrg);
/* turn off hardware retry for getting NACK */
VNSvOutPortB(iobase + MAC_REG_I2MCFG, (byOrg & (~I2MCFG_NORETRY)));
for (wNoACK = 0; wNoACK < W_MAX_I2CRETRY; wNoACK++) {
VNSvOutPortB(iobase + MAC_REG_I2MTGID, EEP_I2C_DEV_ID);
VNSvOutPortB(iobase + MAC_REG_I2MTGAD, byContntOffset);
/* issue read command */
VNSvOutPortB(iobase + MAC_REG_I2MCSR, I2MCSR_EEMR);
/* wait DONE be set */
for (wDelay = 0; wDelay < W_MAX_TIMEOUT; wDelay++) {
VNSvInPortB(iobase + MAC_REG_I2MCSR, &byWait);
if (byWait & (I2MCSR_DONE | I2MCSR_NACK))
break;
PCAvDelayByIO(CB_DELAY_LOOP_WAIT);
}
if ((wDelay < W_MAX_TIMEOUT) &&
(!(byWait & I2MCSR_NACK))) {
break;
}
}
VNSvInPortB(iobase + MAC_REG_I2MDIPT, &byData);
VNSvOutPortB(iobase + MAC_REG_I2MCFG, byOrg);
return byData;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Forest Bond | 159 | 83.25% | 1 | 14.29% |
| Charles Clément | 12 | 6.28% | 2 | 28.57% |
| Varsha Rao | 9 | 4.71% | 1 | 14.29% |
| Jim Lieb | 5 | 2.62% | 1 | 14.29% |
| Steven Harms | 3 | 1.57% | 1 | 14.29% |
| Guillaume Clement | 3 | 1.57% | 1 | 14.29% |
| Total | 191 | 100.00% | 7 | 100.00% |
/*
* Description: Read all contents of eeprom to buffer
*
* Parameters:
* In:
* iobase - I/O base address
* Out:
* pbyEepromRegs - EEPROM content Buffer
*
* Return Value: none
*
*/
void SROMvReadAllContents(void __iomem *iobase, unsigned char *pbyEepromRegs)
{
int ii;
/* ii = Rom Address */
for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) {
*pbyEepromRegs = SROMbyReadEmbedded(iobase,
(unsigned char)ii);
pbyEepromRegs++;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Forest Bond | 35 | 68.63% | 1 | 14.29% |
| Charles Clément | 5 | 9.80% | 2 | 28.57% |
| Malcolm Priestley | 5 | 9.80% | 1 | 14.29% |
| Guillaume Clement | 3 | 5.88% | 1 | 14.29% |
| Varsha Rao | 2 | 3.92% | 1 | 14.29% |
| Steven Harms | 1 | 1.96% | 1 | 14.29% |
| Total | 51 | 100.00% | 7 | 100.00% |
/*
* Description: Read Ethernet Address from eeprom to buffer
*
* Parameters:
* In:
* iobase - I/O base address
* Out:
* pbyEtherAddress - Ethernet Address buffer
*
* Return Value: none
*
*/
void SROMvReadEtherAddress(void __iomem *iobase,
unsigned char *pbyEtherAddress)
{
unsigned char ii;
/* ii = Rom Address */
for (ii = 0; ii < ETH_ALEN; ii++) {
*pbyEtherAddress = SROMbyReadEmbedded(iobase, ii);
pbyEtherAddress++;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Forest Bond | 36 | 75.00% | 1 | 14.29% |
| Charles Clément | 6 | 12.50% | 3 | 42.86% |
| Guillaume Clement | 3 | 6.25% | 1 | 14.29% |
| Varsha Rao | 2 | 4.17% | 1 | 14.29% |
| Steven Harms | 1 | 2.08% | 1 | 14.29% |
| Total | 48 | 100.00% | 7 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Forest Bond | 248 | 79.49% | 1 | 9.09% |
| Charles Clément | 23 | 7.37% | 4 | 36.36% |
| Varsha Rao | 17 | 5.45% | 2 | 18.18% |
| Guillaume Clement | 9 | 2.88% | 1 | 9.09% |
| Jim Lieb | 5 | 1.60% | 1 | 9.09% |
| Malcolm Priestley | 5 | 1.60% | 1 | 9.09% |
| Steven Harms | 5 | 1.60% | 1 | 9.09% |
| Total | 312 | 100.00% | 11 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.