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/*
* Copyright (C) 2018 Marvell International Ltd.
* Copyright (C) 2018 Icenowy Zheng <icenowy@aosc.io>
*
* SPDX-License-Identifier: BSD-3-Clause
* https://spdx.org/licenses
*/
/* This driver provides support for Mentor Graphics MI2CV IP core */
#ifndef MI2CV_H
#define MI2CV_H
#include <stdint.h>
/*
* Initialization, must be called once on start up, may be called
* repeatedly to change the speed and slave addresses.
*/
void i2c_init(void *i2c_base);
/*
* Read/Write interface:
* chip: I2C chip address, range 0..127
* addr: Memory (register) address within the chip
* alen: Number of bytes to use for addr (typically 1, 2 for larger
* memories, 0 for register type devices with only one
* register)
* buffer: Where to read/write the data
* len: How many bytes to read/write
*
* Returns: 0 on success, not 0 on failure
*/
int i2c_read(uint8_t chip,
unsigned int addr, int alen, uint8_t *buffer, int len);
int i2c_write(uint8_t chip,
unsigned int addr, int alen, uint8_t *buffer, int len);
#endif /* MI2CV_H */
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