This PR adds support to control the external power output from controllers like nice!nano, nRFMicro etc I have implemented based on my understanding of Pete suggestion on this feature. Testing done: Tested by enabling and disabling the ext_power from application and verified Verified the application does not crash with boards that does not have ext_power support Note: I did not test this in nice!nano since I don't have the boards. Will get help from others once the behavior PR is up Next Steps: Create a behavior PR to control enable/disable ext_power
104 lines
2.2 KiB
C
104 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2020 The ZMK Contributors
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <zephyr/types.h>
|
|
#include <stddef.h>
|
|
#include <device.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @cond INTERNAL_HIDDEN
|
|
*
|
|
* Behavior driver API definition and system call entry points.
|
|
*
|
|
* (Internal use only.)
|
|
*/
|
|
|
|
typedef int (*ext_power_enable_t)(struct device *dev);
|
|
typedef int (*ext_power_disable_t)(struct device *dev);
|
|
typedef int (*ext_power_get_t)(struct device *dev);
|
|
|
|
__subsystem struct ext_power_api {
|
|
ext_power_enable_t enable;
|
|
ext_power_disable_t disable;
|
|
ext_power_get_t get;
|
|
};
|
|
/**
|
|
* @endcond
|
|
*/
|
|
|
|
/**
|
|
* @brief Enable the external power output
|
|
* @param dev Pointer to the device structure for the driver instance.
|
|
*
|
|
* @retval 0 If successful.
|
|
* @retval Negative errno code if failure.
|
|
*/
|
|
__syscall int ext_power_enable(struct device *dev);
|
|
|
|
static inline int z_impl_ext_power_enable(struct device *dev) {
|
|
const struct ext_power_api *api = (const struct ext_power_api *)dev->driver_api;
|
|
|
|
if (api->enable == NULL) {
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
return api->enable(dev);
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the external power output
|
|
* @param dev Pointer to the device structure for the driver instance.
|
|
*
|
|
* @retval 0 If successful.
|
|
* @retval Negative errno code if failure.
|
|
*/
|
|
__syscall int ext_power_disable(struct device *dev);
|
|
|
|
static inline int z_impl_ext_power_disable(struct device *dev) {
|
|
const struct ext_power_api *api = (const struct ext_power_api *)dev->driver_api;
|
|
|
|
if (api->disable == NULL) {
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
return api->disable(dev);
|
|
}
|
|
|
|
/**
|
|
* @brief Get the current status of the external power output
|
|
* @param dev Pointer to the device structure for the driver instance.
|
|
*
|
|
* @retval 0 If ext power is disabled.
|
|
* @retval 1 if ext power is enabled.
|
|
* @retval Negative errno code if failure.
|
|
*/
|
|
__syscall int ext_power_get(struct device *dev);
|
|
|
|
static inline int z_impl_ext_power_get(struct device *dev) {
|
|
const struct ext_power_api *api = (const struct ext_power_api *)dev->driver_api;
|
|
|
|
if (api->get == NULL) {
|
|
return -ENOTSUP;
|
|
}
|
|
|
|
return api->get(dev);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#include <syscalls/ext_power.h>
|