// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include "common/logging/log.h"

#include "core/hle/service/service.h"
#include "core/hle/service/cam/cam.h"
#include "core/hle/service/cam/cam_c.h"
#include "core/hle/service/cam/cam_q.h"
#include "core/hle/service/cam/cam_s.h"
#include "core/hle/service/cam/cam_u.h"

#include "core/hle/kernel/event.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/hle.h"

namespace Service {
namespace CAM {

static const u32 TRANSFER_BYTES = 5 * 1024;

static Kernel::SharedPtr<Kernel::Event> completion_event;
static Kernel::SharedPtr<Kernel::Event> interrupt_error_event;
static Kernel::SharedPtr<Kernel::Event> vsync_interrupt_error_event;

void DriverInitialize(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called");
}

void DriverFinalize(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called");
}

void SetTransferLines(Service::Interface* self) {
    u32* cmd_buff      = Kernel::GetCommandBuffer();

    u8  port           = cmd_buff[1] & 0xFF;
    u16 transfer_lines = cmd_buff[2] & 0xFFFF;
    u16 width          = cmd_buff[3] & 0xFFFF;
    u16 height         = cmd_buff[4] & 0xFFFF;

    cmd_buff[1]        = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d, lines=%d, width=%d, height=%d",
                port, transfer_lines, width, height);
}

void GetMaxLines(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u16 width     = cmd_buff[1] & 0xFFFF;
    u16 height    = cmd_buff[2] & 0xFFFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;
    cmd_buff[2]   = TRANSFER_BYTES / (2 * width);

    LOG_WARNING(Service_CAM, "(STUBBED) called, width=%d, height=%d, lines = %d",
                width, height, cmd_buff[2]);
}

void GetBufferErrorInterruptEvent(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 port       = cmd_buff[1] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;
    cmd_buff[3]   = Kernel::g_handle_table.Create(interrupt_error_event).MoveFrom();

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d", port);
}

void GetVsyncInterruptEvent(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 port       = cmd_buff[1] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;
    cmd_buff[3]   = Kernel::g_handle_table.Create(vsync_interrupt_error_event).MoveFrom();

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d", port);
}

void SetSize(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 cam_select = cmd_buff[1] & 0xFF;
    u8 size       = cmd_buff[2] & 0xFF;
    u8 context    = cmd_buff[3] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, cam_select=%d, size=%d, context=%d",
                cam_select, size, context);
}

void Activate(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 cam_select = cmd_buff[1] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, cam_select=%d",
                cam_select);
}

void SetTrimming(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8   port     = cmd_buff[1] & 0xFF;
    bool trim     = cmd_buff[2] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d, trim=%d", port, trim);
}

void SetTrimmingParamsCenter(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8  port      = cmd_buff[1] & 0xFF;
    s16 trimW     = cmd_buff[2] & 0xFFFF;
    s16 trimH     = cmd_buff[3] & 0xFFFF;
    s16 camW      = cmd_buff[4] & 0xFFFF;
    s16 camH      = cmd_buff[5] & 0xFFFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d, trimW=%d, trimH=%d, camW=%d, camH=%d",
                port, trimW, trimH, camW, camH);
}

void FlipImage(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 cam_select = cmd_buff[1] & 0xFF;
    u8 flip       = cmd_buff[2] & 0xFF;
    u8 context    = cmd_buff[3] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, cam_select=%d, flip=%d, context=%d",
                cam_select, flip, context);
}

void SetFrameRate(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 cam_select = cmd_buff[1] & 0xFF;
    u8 frame_rate = cmd_buff[2] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, cam_select=%d, frame_rate=%d",
                cam_select, frame_rate);
}

void GetSuitableY2rStandardCoefficient(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    cmd_buff[1]   = RESULT_SUCCESS.raw;
    cmd_buff[2]   = 0;

    LOG_WARNING(Service_CAM, "(STUBBED) called");
}

void GetTransferBytes(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 port       = cmd_buff[1] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;
    cmd_buff[2]   = TRANSFER_BYTES;

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d", port);
}

void SetReceiving(Service::Interface* self) {
    u32* cmd_buff  = Kernel::GetCommandBuffer();

    u32 dest       = cmd_buff[1]; // void*
    u8  port       = cmd_buff[2] & 0xFF;
    u32 image_size = cmd_buff[3];
    u16 trans_unit = cmd_buff[4] & 0xFFFF;

    cmd_buff[1]    = RESULT_SUCCESS.raw;
    cmd_buff[3]    = Kernel::g_handle_table.Create(completion_event).MoveFrom();

    LOG_WARNING(Service_CAM, "(STUBBED) called, addr=0x%X, port=%d, image_size=%d, trans_unit=%d",
                dest, port, image_size, trans_unit);
}

void StartCapture(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 port       = cmd_buff[1] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d", port);
}

void StopCapture(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 port       = cmd_buff[1] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, port=%d", port);
}

void PlayShutterSound(Service::Interface* self) {
    u32* cmd_buff = Kernel::GetCommandBuffer();

    u8 sound_id   = cmd_buff[1] & 0xFF;

    cmd_buff[1]   = RESULT_SUCCESS.raw;

    LOG_WARNING(Service_CAM, "(STUBBED) called, sound_id=%d", sound_id);
}



void Init() {
    using namespace Kernel;

    AddService(new CAM_C_Interface);
    AddService(new CAM_Q_Interface);
    AddService(new CAM_S_Interface);
    AddService(new CAM_U_Interface);

    completion_event            = Kernel::Event::Create(RESETTYPE_ONESHOT, "CAM_U::completion_event");
    interrupt_error_event       = Kernel::Event::Create(RESETTYPE_ONESHOT, "CAM_U::interrupt_error_event");
    vsync_interrupt_error_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "CAM_U::vsync_interrupt_error_event");
}

void Shutdown() {
    completion_event            = nullptr;
    interrupt_error_event       = nullptr;
    vsync_interrupt_error_event = nullptr;
}

} // namespace CAM

} // namespace Service