/* SPDX-License-Identifier: GPL-2.0+ */

  /*
   * Copyright (c) 2014 Google, Inc

   */
  
  #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);

  	int (*size)(struct udevice *dev);

  };
  
  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;

  	/* The EEPROM's capacity in bytes */
  	unsigned long size;

  };

  /*
   * 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);

  /*
   * i2c_eeprom_size() - get size of I2C EEPROM chip
   *
   * @dev:	Chip to query
   *
   * @return +ve size in bytes on success, -ve on failure
   */
  int i2c_eeprom_size(struct udevice *dev);

  #endif