1 /*
2 * Copyright (c) 2016, 2017 Intel Corporation
3 * Copyright (c) 2017 IpTronix S.r.l.
4 * Copyright (c) 2021 Nordic Semiconductor ASA
5 * Copyright (c) 2022, Leonard Pollak
6 *
7 * SPDX-License-Identifier: Apache-2.0
8 */
9
10 /*
11 * Bus-specific functionality for BME680s accessed via I2C.
12 */
13
14 #include "bme680.h"
15
16 #if BME680_BUS_I2C
bme680_bus_check_i2c(const union bme680_bus * bus)17 static int bme680_bus_check_i2c(const union bme680_bus *bus)
18 {
19 return device_is_ready(bus->i2c.bus) ? 0 : -ENODEV;
20 }
21
bme680_reg_read_i2c(const struct device * dev,uint8_t start,uint8_t * buf,int size)22 static int bme680_reg_read_i2c(const struct device *dev,
23 uint8_t start, uint8_t *buf, int size)
24 {
25 const struct bme680_config *config = dev->config;
26
27 return i2c_burst_read_dt(&config->bus.i2c, start, buf, size);
28 }
29
bme680_reg_write_i2c(const struct device * dev,uint8_t reg,uint8_t val)30 static int bme680_reg_write_i2c(const struct device *dev,
31 uint8_t reg, uint8_t val)
32 {
33 const struct bme680_config *config = dev->config;
34
35 return i2c_reg_write_byte_dt(&config->bus.i2c, reg, val);
36 }
37
38 const struct bme680_bus_io bme680_bus_io_i2c = {
39 .check = bme680_bus_check_i2c,
40 .read = bme680_reg_read_i2c,
41 .write = bme680_reg_write_i2c,
42 };
43 #endif /* BME680_BUS_I2C */
44
