/**
 * @file nv.h
 * @brief NVIDIA low level driver (nvdrv*) service IPC wrapper.
 * @author yellows8
 * @copyright libnx Authors
 */
#pragma once
#include "../types.h"
#include "../sf/service.h"
#include "../kernel/event.h"

/// NvServiceType, for __nx_nv_service_type.
typedef enum {
    NvServiceType_Auto                  = -1,  ///< This is the default. Automatically select the type using \ref appletGetAppletType.
    NvServiceType_Application           = 0,   ///< Initializes nvdrv.
    NvServiceType_Applet                = 1,   ///< Initializes nvdrv:a.
    NvServiceType_System                = 2,   ///< Initializes nvdrv:s.
    NvServiceType_Factory               = 3,   ///< Initializes nvdrv:t.
} NvServiceType;

/// Initialize nvdrv*.
Result nvInitialize(void);

/// Exit nvdrv*.
void nvExit(void);

/// Gets the Service object for the actual nvdrv* service session.
Service* nvGetServiceSession(void);

typedef enum {
    NvEventId_Gpu_SmException_BptIntReport=1,
    NvEventId_Gpu_SmException_BptPauseReport=2,
    NvEventId_Gpu_ErrorNotifier=3,

    NvEventId_CtrlGpu_ErrorEventHandle=1,
    NvEventId_CtrlGpu_Unknown=2,
} NvEventId;

#define NV_EVENT_ID_CTRL__SYNCPT(slot, syncpt) \
    ((1u<<28) | ((syncpt) << 16) | (slot))

Result nvOpen(u32 *fd, const char *devicepath);
Result nvIoctl(u32 fd, u32 request, void* argp);
Result nvIoctl2(u32 fd, u32 request, void* argp, const void* inbuf, size_t inbuf_size); ///< [3.0.0+]
Result nvIoctl3(u32 fd, u32 request, void* argp, void* outbuf, size_t outbuf_size); ///< [3.0.0+]
Result nvClose(u32 fd);
Result nvQueryEvent(u32 fd, u32 event_id, Event *event_out);

Result nvConvertError(int rc);