mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 20:18:18 +00:00
8880efbd1f
Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Reviewed-by: Simon Glass <sjg@chromium.org>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
|
|
* Copyright (c) 2014 Google, Inc
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __I2C_EEPROM
|
|
#define __I2C_EEPROM
|
|
|
|
struct i2c_eeprom_ops {
|
|
int (*read)(struct udevice *dev, int offset, uint8_t *buf, int size);
|
|
int (*write)(struct udevice *dev, int offset, const uint8_t *buf,
|
|
int size);
|
|
};
|
|
|
|
struct i2c_eeprom {
|
|
/* The EEPROM's page size in byte */
|
|
unsigned long pagesize;
|
|
/* The EEPROM's page width in bits (pagesize = 2^pagewidth) */
|
|
unsigned pagewidth;
|
|
};
|
|
|
|
/*
|
|
* i2c_eeprom_read() - read bytes from an I2C EEPROM chip
|
|
*
|
|
* @dev: Chip to read from
|
|
* @offset: Offset within chip to start reading
|
|
* @buf: Place to put data
|
|
* @size: Number of bytes to read
|
|
*
|
|
* @return 0 on success, -ve on failure
|
|
*/
|
|
int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf, int size);
|
|
|
|
/*
|
|
* i2c_eeprom_write() - write bytes to an I2C EEPROM chip
|
|
*
|
|
* @dev: Chip to write to
|
|
* @offset: Offset within chip to start writing
|
|
* @buf: Buffer containing data to write
|
|
* @size: Number of bytes to write
|
|
*
|
|
* @return 0 on success, -ve on failure
|
|
*/
|
|
int i2c_eeprom_write(struct udevice *dev, int offset, uint8_t *buf, int size);
|
|
|
|
#endif
|