1 /*
2 * Copyright (c) 2020 Innoseis B.V
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <errno.h>
8
9 #include <zephyr/devicetree.h>
10 #include <zephyr/drivers/eeprom.h>
11 #include <zephyr/drivers/sensor/tmp116.h>
12
13 #define DT_DRV_COMPAT ti_tmp116_eeprom
14
15 struct eeprom_tmp116_config {
16 const struct device *parent;
17 };
18
19 BUILD_ASSERT(CONFIG_EEPROM_INIT_PRIORITY >
20 CONFIG_SENSOR_INIT_PRIORITY,
21 "TMP116 eeprom driver must be initialized after TMP116 sensor "
22 "driver");
23
eeprom_tmp116_size(const struct device * dev)24 static size_t eeprom_tmp116_size(const struct device *dev)
25 {
26 return EEPROM_TMP116_SIZE;
27 }
28
eeprom_tmp116_write(const struct device * dev,off_t offset,const void * data,size_t len)29 static int eeprom_tmp116_write(const struct device *dev, off_t offset,
30 const void *data, size_t len)
31 {
32 const struct eeprom_tmp116_config *config = dev->config;
33
34 return tmp116_eeprom_write(config->parent, offset, data, len);
35 }
36
eeprom_tmp116_read(const struct device * dev,off_t offset,void * data,size_t len)37 static int eeprom_tmp116_read(const struct device *dev, off_t offset, void *data,
38 size_t len)
39 {
40 const struct eeprom_tmp116_config *config = dev->config;
41
42 return tmp116_eeprom_read(config->parent, offset, data, len);
43 }
44
eeprom_tmp116_init(const struct device * dev)45 static int eeprom_tmp116_init(const struct device *dev)
46 {
47 const struct eeprom_tmp116_config *config = dev->config;
48
49 if (!device_is_ready(config->parent)) {
50 return -ENODEV;
51 }
52
53 return 0;
54 }
55
56 static const struct eeprom_driver_api eeprom_tmp116_api = {
57 .read = eeprom_tmp116_read,
58 .write = eeprom_tmp116_write,
59 .size = eeprom_tmp116_size,
60 };
61
62 #define DEFINE_TMP116(_num) \
63 static const struct eeprom_tmp116_config eeprom_tmp116_config##_num = { \
64 .parent = DEVICE_DT_GET(DT_INST_BUS(_num)) \
65 }; \
66 DEVICE_DT_INST_DEFINE(_num, eeprom_tmp116_init, NULL, \
67 NULL, &eeprom_tmp116_config##_num, POST_KERNEL, \
68 CONFIG_EEPROM_INIT_PRIORITY, &eeprom_tmp116_api);
69
70 DT_INST_FOREACH_STATUS_OKAY(DEFINE_TMP116);
71
