dali.h

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/*
 * Copyright (c) 2026 by Sven Hädrich <sven.haedrich@sevenlab.de>
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef ZEPHYR_INCLUDE_DRIVERS_DALI_H_
#define ZEPHYR_INCLUDE_DRIVERS_DALI_H_

 
#include <zephyr/device.h>
#include <zephyr/sys_clock.h>
#include <zephyr/sys/__assert.h>
#include <errno.h>
#include <stdbool.h>
 
#ifdef __cplusplus
extern "C" {
#endif

enum dali_event_type {
        DALI_FRAME_CORRUPT,     
        DALI_FRAME_BACKWARD,    
        DALI_FRAME_GEAR,        
        DALI_FRAME_DEVICE,      
        DALI_FRAME_FIRMWARE,    
        DALI_EVENT_BUS_FAILURE, 
        DALI_EVENT_BUS_IDLE,    
};

struct dali_frame {
        uint32_t data;                   
        enum dali_event_type event_type; 
};

typedef void (*dali_receive_callback_t)(const struct device *dev, struct dali_frame frame,
                                        void *user_data);

typedef void (*dali_transmit_callback_t)(const struct device *dev, int error, void *user_data);


typedef int (*dali_api_set_receive_callback_t)(const struct device *dev,
                                               dali_receive_callback_t callback, void *user_data);

typedef int (*dali_api_transmit_t)(const struct device *dev, const struct dali_frame *frame,
                                   dali_transmit_callback_t callback, void *user_data);

__subsystem struct dali_driver_api {
        dali_api_set_receive_callback_t set_receive_callback;
        dali_api_transmit_t transmit;
};


__syscall int dali_set_receive_callback(const struct device *dev, dali_receive_callback_t callback,
                                        void *user_data);
 
static inline int z_impl_dali_set_receive_callback(const struct device *dev,
                                                   dali_receive_callback_t callback,
                                                   void *user_data)
{
        return DEVICE_API_GET(dali, dev)->set_receive_callback(dev, callback, user_data);
}

__syscall int dali_transmit(const struct device *dev, const struct dali_frame *frame,
                            dali_transmit_callback_t callback, void *user_data);
 
static inline int z_impl_dali_transmit(const struct device *dev, const struct dali_frame *frame,
                                       dali_transmit_callback_t callback, void *user_data)
{
        return DEVICE_API_GET(dali, dev)->transmit(dev, frame, callback, user_data);
}

#ifdef __cplusplus
}
#endif
 
#include <zephyr/syscalls/dali.h>
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_DALI_H_ */