linux/drivers/staging/vt6655/srom.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * 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 "device.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
 *      contnt_offset  - address of EEPROM
 *  Out:
 *      none
 *
 * Return Value: data read
 *
 */
unsigned char SROMbyReadEmbedded(void __iomem *iobase,
				 unsigned char contnt_offset)
{ … }

/*
 * 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)
{ … }

/*
 * 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)
{ … }