/*
 * Copyright (c) Hisilicon Technologies Co., Ltd.. 2019-2022. All rights reserved.
 * Description: Support hwdisplay hal adaptation interface
 * Author: Hisilicon
 * Created: 2022-12-28
 */

#ifndef DISPLAY_H
#define DISPLAY_H

#include <hardware/hardware.h>
#include <sys/types.h>
#include <log/log.h>
#include <binder/Parcel.h>

#include "uapi_svr_dispmng.h"
__BEGIN_DECLS

#define DISP_MNG_VERSION

#define DISPLAY_HARDWARE_MODULE_ID "display"
#define DISPLAY_HARDWARE_DISPLAY0  "video15"

/* display module struct */
typedef struct DisplayModuleT {
    struct hw_module_t common;
} DisplayModuleT;

#ifdef DISP_MNG_VERSION
/* Display Manager Event */
typedef void (*DispmngEventCallback)(uapi_svr_dispmng_event event, void *msg, unsigned int msglen, void *privdata);

#endif

/* display HAL struct */
typedef struct DisplayDeviceT {
    struct hw_device_t common;

    int(*invoke)(const android::Parcel &request, android::Parcel &reply);
#ifdef DISP_MNG_VERSION
    int(*registerDispmngCallback)(unsigned int event, DispmngEventCallback callback, void *arg);
    int(*unregisterDispmngCallback)(unsigned int event, DispmngEventCallback callback);
#endif
} DisplayDeviceT;

/* display context struct */
typedef struct DisplayContextT {
    struct DisplayDeviceT device;
} DisplayContextT;

/* display HAL interface, fill the device struct, enable it to use set or get value function */
static inline int displayOpen(const struct hw_module_t *module,
                              hw_device_t **device)
{
    if (module != nullptr && module->methods != nullptr) {
        return module->methods->open(module, DISPLAY_HARDWARE_DISPLAY0, device);
    } else {
        return -1;
    }
}

/* release module source when the end  */
static inline int displayClose(struct DisplayDeviceT *device)
{
    if (device != nullptr) {
        return device->common.close(&device->common);
    } else {
        return -1;
    }
}

__END_DECLS
#endif