1 /*
2 * Copyright (c) 2024 Intel Corporation
3 * SPDX-License-Identifier: Apache-2.0
4 */
5
6 /*
7 * Bus-specific functionality for MMC56X3s accessed via I2C.
8 */
9
10 #include "mmc56x3.h"
11
mmc56x3_bus_check_i2c(const union mmc56x3_bus * bus)12 static int mmc56x3_bus_check_i2c(const union mmc56x3_bus *bus)
13 {
14 return device_is_ready(bus->i2c.bus) ? 0 : -ENODEV;
15 }
16
mmc56x3_reg_read_i2c(const union mmc56x3_bus * bus,uint8_t reg,uint8_t * buf,int size)17 static int mmc56x3_reg_read_i2c(const union mmc56x3_bus *bus, uint8_t reg, uint8_t *buf, int size)
18 {
19 return i2c_burst_read_dt(&bus->i2c, reg, buf, size);
20 }
21
mmc56x3_reg_write_i2c(const union mmc56x3_bus * bus,uint8_t reg,uint8_t val)22 static int mmc56x3_reg_write_i2c(const union mmc56x3_bus *bus, uint8_t reg, uint8_t val)
23 {
24 return i2c_reg_write_byte_dt(&bus->i2c, reg, val);
25 }
26
mmc56x3_raw_read_i2c(const union mmc56x3_bus * bus,uint8_t * buf,size_t size)27 static int mmc56x3_raw_read_i2c(const union mmc56x3_bus *bus, uint8_t *buf, size_t size)
28 {
29 return i2c_read_dt(&bus->i2c, buf, size);
30 }
31
mmc56x3_raw_write_i2c(const union mmc56x3_bus * bus,uint8_t * buf,size_t size)32 static int mmc56x3_raw_write_i2c(const union mmc56x3_bus *bus, uint8_t *buf, size_t size)
33 {
34 return i2c_write_dt(&bus->i2c, buf, size);
35 }
36
37 const struct mmc56x3_bus_io mmc56x3_bus_io_i2c = {
38 .check = mmc56x3_bus_check_i2c,
39 .read = mmc56x3_reg_read_i2c,
40 .write = mmc56x3_reg_write_i2c,
41 .raw_read = mmc56x3_raw_read_i2c,
42 .raw_write = mmc56x3_raw_write_i2c,
43 };
44
