1 /*
2 * Copyright 2021 The Chromium OS Authors
3 * Copyright 2021 Grinn
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7
8 #include "ina230.h"
9
10 #include <zephyr/drivers/sensor.h>
11 #include <zephyr/drivers/gpio.h>
12 #include <zephyr/logging/log.h>
13
14 LOG_MODULE_DECLARE(INA230, CONFIG_SENSOR_LOG_LEVEL);
15
ina230_gpio_callback(const struct device * port,struct gpio_callback * cb,uint32_t pin)16 static void ina230_gpio_callback(const struct device *port,
17 struct gpio_callback *cb, uint32_t pin)
18 {
19 struct ina230_data *ina230 = CONTAINER_OF(cb, struct ina230_data, gpio_cb);
20 const struct device *dev = (const struct device *)ina230->dev;
21
22 ARG_UNUSED(port);
23 ARG_UNUSED(pin);
24 ARG_UNUSED(cb);
25
26 if (ina230->handler_alert) {
27 ina230->handler_alert(dev, ina230->trig_alert);
28 }
29 }
30
ina230_trigger_set(const struct device * dev,const struct sensor_trigger * trig,sensor_trigger_handler_t handler)31 int ina230_trigger_set(const struct device *dev,
32 const struct sensor_trigger *trig,
33 sensor_trigger_handler_t handler)
34 {
35 struct ina230_data *ina230 = dev->data;
36
37 ARG_UNUSED(trig);
38
39 ina230->handler_alert = handler;
40 ina230->trig_alert = trig;
41
42 return 0;
43 }
44
ina230_trigger_mode_init(const struct device * dev)45 int ina230_trigger_mode_init(const struct device *dev)
46 {
47 struct ina230_data *ina230 = dev->data;
48 const struct ina230_config *config = dev->config;
49 int ret;
50
51 /* setup alert gpio interrupt */
52 if (!gpio_is_ready_dt(&config->alert_gpio)) {
53 LOG_ERR("Alert GPIO device not ready");
54 return -ENODEV;
55 }
56
57 ina230->dev = dev;
58
59 ret = gpio_pin_configure_dt(&config->alert_gpio, GPIO_INPUT);
60 if (ret < 0) {
61 LOG_ERR("Could not configure gpio");
62 return ret;
63 }
64
65 gpio_init_callback(&ina230->gpio_cb,
66 ina230_gpio_callback,
67 BIT(config->alert_gpio.pin));
68
69 ret = gpio_add_callback(config->alert_gpio.port, &ina230->gpio_cb);
70 if (ret < 0) {
71 LOG_ERR("Could not set gpio callback");
72 return ret;
73 }
74
75 return gpio_pin_interrupt_configure_dt(&config->alert_gpio,
76 GPIO_INT_EDGE_BOTH);
77 }
78
