1 /*
2 * Copyright (c) 2024 Gustavo Silva
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #define DT_DRV_COMPAT sciosense_ens160
8
9 #include <zephyr/drivers/i2c.h>
10
11 #include "ens160.h"
12
13 LOG_MODULE_DECLARE(ENS160, CONFIG_SENSOR_LOG_LEVEL);
14
15 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
16
ens160_read_reg_i2c(const struct device * dev,uint8_t reg,uint8_t * val)17 static int ens160_read_reg_i2c(const struct device *dev, uint8_t reg, uint8_t *val)
18 {
19 const struct ens160_config *config = dev->config;
20
21 return i2c_reg_read_byte_dt(&config->i2c, reg, val);
22 }
23
ens160_read_data_i2c(const struct device * dev,uint8_t reg,uint8_t * data,size_t len)24 static int ens160_read_data_i2c(const struct device *dev, uint8_t reg, uint8_t *data, size_t len)
25 {
26 const struct ens160_config *config = dev->config;
27
28 return i2c_burst_read_dt(&config->i2c, reg, data, len);
29 }
30
ens160_write_reg_i2c(const struct device * dev,uint8_t reg,uint8_t val)31 static int ens160_write_reg_i2c(const struct device *dev, uint8_t reg, uint8_t val)
32 {
33 const struct ens160_config *config = dev->config;
34
35 return i2c_reg_write_byte_dt(&config->i2c, reg, val);
36 }
37
ens160_write_data_i2c(const struct device * dev,uint8_t reg,uint8_t * data,size_t len)38 static int ens160_write_data_i2c(const struct device *dev, uint8_t reg, uint8_t *data, size_t len)
39 {
40 const struct ens160_config *config = dev->config;
41
42 __ASSERT(len == 2, "Only 2 byte write are supported");
43
44 uint8_t buff[] = {reg, data[0], data[1]};
45
46 return i2c_write_dt(&config->i2c, buff, sizeof(buff));
47 }
48
49 const struct ens160_transfer_function ens160_i2c_transfer_function = {
50 .read_reg = ens160_read_reg_i2c,
51 .read_data = ens160_read_data_i2c,
52 .write_reg = ens160_write_reg_i2c,
53 .write_data = ens160_write_data_i2c,
54 };
55
ens160_i2c_init(const struct device * dev)56 int ens160_i2c_init(const struct device *dev)
57 {
58 const struct ens160_config *config = dev->config;
59 struct ens160_data *data = dev->data;
60
61 if (!i2c_is_ready_dt(&config->i2c)) {
62 LOG_DBG("I2C bus device not ready");
63 return -ENODEV;
64 }
65
66 data->tf = &ens160_i2c_transfer_function;
67
68 return 0;
69 }
70
71 #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */
72
