92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2020 The ZMK Contributors
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#define DT_DRV_COMPAT zmk_ext_power_generic
|
|
|
|
#include <device.h>
|
|
#include <init.h>
|
|
#include <drivers/gpio.h>
|
|
#include <drivers/ext_power.h>
|
|
|
|
#if DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT)
|
|
|
|
#include <logging/log.h>
|
|
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
|
|
|
|
struct ext_power_generic_config {
|
|
const char *label;
|
|
const u8_t pin;
|
|
const u8_t flags;
|
|
};
|
|
|
|
struct ext_power_generic_data {
|
|
struct device *gpio;
|
|
bool status;
|
|
};
|
|
|
|
static int ext_power_generic_enable(struct device *dev) {
|
|
struct ext_power_generic_data *data = dev->driver_data;
|
|
const struct ext_power_generic_config *config = dev->config_info;
|
|
|
|
if (gpio_pin_set(data->gpio, config->pin, 1)) {
|
|
LOG_WRN("Failed to set ext-power control pin");
|
|
return -EIO;
|
|
}
|
|
data->status = true;
|
|
return 0;
|
|
}
|
|
|
|
static int ext_power_generic_disable(struct device *dev) {
|
|
struct ext_power_generic_data *data = dev->driver_data;
|
|
const struct ext_power_generic_config *config = dev->config_info;
|
|
|
|
if (gpio_pin_set(data->gpio, config->pin, 0)) {
|
|
LOG_WRN("Failed to clear ext-power control pin");
|
|
return -EIO;
|
|
}
|
|
data->status = false;
|
|
return 0;
|
|
}
|
|
|
|
static int ext_power_generic_get(struct device *dev) {
|
|
struct ext_power_generic_data *data = dev->driver_data;
|
|
return data->status;
|
|
}
|
|
|
|
static int ext_power_generic_init(struct device *dev) {
|
|
struct ext_power_generic_data *data = dev->driver_data;
|
|
const struct ext_power_generic_config *config = dev->config_info;
|
|
|
|
data->gpio = device_get_binding(config->label);
|
|
if (data->gpio == NULL) {
|
|
LOG_ERR("Failed to get ext-power control device");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (gpio_pin_configure(data->gpio, config->pin, config->flags | GPIO_OUTPUT)) {
|
|
LOG_ERR("Failed to configure ext-power control pin");
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct ext_power_generic_config config = {
|
|
.label = DT_INST_GPIO_LABEL(0, control_gpios),
|
|
.pin = DT_INST_GPIO_PIN(0, control_gpios),
|
|
.flags = DT_INST_GPIO_FLAGS(0, control_gpios)};
|
|
|
|
static struct ext_power_generic_data data = {.status = false};
|
|
|
|
static const struct ext_power_api api = {.enable = ext_power_generic_enable,
|
|
.disable = ext_power_generic_disable,
|
|
.get = ext_power_generic_get};
|
|
|
|
DEVICE_AND_API_INIT(ext_power_generic, DT_INST_LABEL(0), ext_power_generic_init, &data, &config,
|
|
APPLICATION, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &api);
|
|
|
|
#endif /* DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT) */
|