4d81b10ba7
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
/*
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* Copyright (c) 2020 The ZMK Contributors
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <zephyr/types.h>
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#include <stddef.h>
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#include <device.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @cond INTERNAL_HIDDEN
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*
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* Behavior driver API definition and system call entry points.
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*
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* (Internal use only.)
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*/
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typedef int (*ext_power_enable_t)(struct device *dev);
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typedef int (*ext_power_disable_t)(struct device *dev);
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typedef int (*ext_power_get_t)(struct device *dev);
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__subsystem struct ext_power_api {
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ext_power_enable_t enable;
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ext_power_disable_t disable;
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ext_power_get_t get;
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};
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/**
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* @endcond
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*/
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/**
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* @brief Enable the external power output
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* @param dev Pointer to the device structure for the driver instance.
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*
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* @retval 0 If successful.
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* @retval Negative errno code if failure.
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*/
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__syscall int ext_power_enable(struct device *dev);
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static inline int z_impl_ext_power_enable(struct device *dev) {
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const struct ext_power_api *api = (const struct ext_power_api *)dev->driver_api;
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if (api->enable == NULL) {
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return -ENOTSUP;
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}
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return api->enable(dev);
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}
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/**
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* @brief Disable the external power output
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* @param dev Pointer to the device structure for the driver instance.
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*
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* @retval 0 If successful.
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* @retval Negative errno code if failure.
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*/
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__syscall int ext_power_disable(struct device *dev);
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static inline int z_impl_ext_power_disable(struct device *dev) {
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const struct ext_power_api *api = (const struct ext_power_api *)dev->driver_api;
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if (api->disable == NULL) {
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return -ENOTSUP;
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}
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return api->disable(dev);
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}
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/**
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* @brief Get the current status of the external power output
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* @param dev Pointer to the device structure for the driver instance.
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*
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* @retval 0 If ext power is disabled.
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* @retval 1 if ext power is enabled.
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* @retval Negative errno code if failure.
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*/
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__syscall int ext_power_get(struct device *dev);
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static inline int z_impl_ext_power_get(struct device *dev) {
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const struct ext_power_api *api = (const struct ext_power_api *)dev->driver_api;
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if (api->get == NULL) {
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return -ENOTSUP;
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}
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return api->get(dev);
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}
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#include <syscalls/ext_power.h>
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