hw_screen.c

瑞星微公司RK27XX系列芯片的SDK开发包

/******************************************************************/
/*   Copyright (C) 2007 ROCK-CHIPS FUZHOU . All Rights Reserved.  */
/*******************************************************************
File    :  hw_Screen.c
Desc    :  逻辑屏物理屏控制
Author  :  nzy
Date    :  2007
Notes   :

$Log    :
*********************************************************************/
#include    "hw_include.h"
#include    "hw_Dwdma.h"
#include    "hw_Lcdctrl.h"
#include    "hw_Screen.h"
#include    "hwapi_Dwdma.h"
#include    "hwapi_Mcupanel.h"
#include    "hwapi_Rgbpanel.h"
#include    "hwapi_Lcdctrl.h"



UINT32   SDRAM_DARK_Y[2056];
UINT32   SDRAM_DARK_UV[1280];
UINT32   SDRAM_DARK_RGB[1280];
LCDCDEV  LCDCDev;
DWDMALLP AlphaDarkLLP;
UPDATESTA   LCDUpDateStatus = UpDateIdle;
SCREENTYPE  Screen_Type;
ALPHAEN     AlphaEnable = FIFODisable;





/*---------------------------------------------------------
Name  :  Screen_SetType
Dec   :  设置显示模块的类型
Params:  ScreenType -> 显示模块的类型
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/
void Screen_SetType(SCREENTYPE ScreenType)
{
    Screen_Type = ScreenType;
}


/*---------------------------------------------------------
Name  :  Screen_GetType
Dec   :  获取显示模块的类型
Params:
Return:  ScreenType -> 显示模块的类型
Author:  nzy
Date  :
-----------------------------------------------------------*/
SCREENTYPE Screen_GetType(void)
{
    return Screen_Type;
}


/*---------------------------------------------------------
Name  :  Screen_SetMCUUpDatStat
Dec   :  设置显示模块的类型
Params:  MCUUpDatStat -> MCU刷屏配置状态
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/
void Screen_SetMCUUpDatStat(UPDATESTA MCUUpDatStat)
{
    LCDUpDateStatus = MCUUpDatStat;
}


/*---------------------------------------------------------
Name  :  Screen_GetMCUUpDatStat
Dec   :  获取显示模块的类型
Params:
Return:  MCUUpDatStat -> MCU刷屏配置状态
Author:  nzy
Date  :
-----------------------------------------------------------*/
UPDATESTA Screen_GetMCUUpDatStat(void)
{
    return LCDUpDateStatus;
}


/*---------------------------------------------------------
Name  :  Screen_SetAlphaEn
Dec   :  设置Alpha使能转态
Params:  AlphaEn -> Alpha使能转态
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/
void Screen_SetAlphaEn(ALPHAEN AlphaEn)
{
    AlphaEnable = AlphaEn;
}


/*---------------------------------------------------------
Name  :  Screen_GetAlphaEn
Dec   :  获取Alpha使能转态
Params:
Return:  AlphaEn -> Alpha使能转态
Author:  nzy
Date  :
-----------------------------------------------------------*/
ALPHAEN Screen_GetAlphaEn(void)
{
    return AlphaEnable;
}


/*---------------------------------------------------------
Name  :  Screen_MCUUpDate
Dec   :  MCU接口物理刷屏
Params:
Return:  UPDATESTATUS 值返回用于DMA及LCD状态检测判断，若DMA channel或LCD的状态为忙返回ERROR，尚未处理。
         包括Screen和Alpha切换过程处理
Author:  nzy
Date  :
-----------------------------------------------------------*/
SCREENRESULT Screen_MCUUpDate(void)
{
    UINT32 i;

    if (Screen_GetType() != MCULCD)//防止电视输出时MCU接口刷屏
        return ScreenOK;

    if (Screen_GetMCUUpDatStat() == UpDating)//防止重入
        return ScreenError;
    Screen_SetMCUUpDatStat(UpDating);

    if (Screen_GetMCUIFStatus() == BUSY)//防止交叉刷屏
    {
        Screen_SetMCUUpDatStat(UpDateIdle);
        return ScreenError;
    }

    if (LCDCDev.Screen != 0x0)
    {
        DWDMA_DisChannel(CH0);
        if (LCDCDev.ReConfig)
        {
            LcdCtrl_BackGroundSet(&LCDCDev.Screen->LCDCConfig);         //config LCDC 的动态属性，不包括硬件属性
            LCDCDev.ReConfig = 0;
            if ((LCDCDev.Screen->ScrFormat == RGB565) || (LCDCDev.Screen->ScrFormat == RGB888))
            {
                for (i = 0; i < 4; i++)
                    memcpy((UINT32)RegLCDC_BUF + 4*i*LCDCDev.XSize, SDRAM_DARK_RGB, 4*LCDCDev.XSize);
                LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList);
                DWDMA_Transmit(CH0, &LCDCDev.LLPTable, DWDMA_YUV_HS);
            }
            else
            {
                if (((LCDCDev.Screen->ScrFormat == YUV422)) || (LCDCDev.Screen->ScrFormat == YUV420))
                    DWDMA_DestScatter(CH0, LCDCDev.Screen->RawXSize / 4, (LCDCDev.Screen->ViewXSize - LCDCDev.Screen->RawXSize) / 4);
                DWDMA_Transmit(CH0, LCDCDev.Screen->LLPList, DWDMA_YUV_HS);//开始刷上一屏
                LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList + 2);//将上一屏的最后指到当前屏开始位置
            }
            delay_nops(2000);          //wait for DMA complete
        }
        else
        {
            if (LCDCDev.LLPTable.LLP != 0)
            {
                if ((LCDCDev.Screen->ScrFormat == RGB565) || (LCDCDev.Screen->ScrFormat == RGB888))
                {
                    LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList);
                    DWDMA_Transmit(CH0, &LCDCDev.LLPTable, DWDMA_YUV_HS);
                }
                else
                {
                    if (((LCDCDev.Screen->ScrFormat == YUV422)) || (LCDCDev.Screen->ScrFormat == YUV420))
                        DWDMA_DestScatter(CH0, LCDCDev.Screen->RawXSize / 4, (LCDCDev.Screen->ViewXSize - LCDCDev.Screen->RawXSize) / 4);
                    DWDMA_Transmit(CH0, LCDCDev.LLPTable.LLP + 1, DWDMA_YUV_HS);
                    LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList + 2);
                }
            }
        }
    }
    if (LCDCDev.FrontGrnd != 0x0)
    {
        DWDMA_DisChannel(CH1);
        WriteReg32(BUFF_CTRL, ReadReg32(BUFF_CTRL)&(~b_LCDC_FIFOEN));  //front data buffer address in LCDC
        if (LCDCDev.ReConfigAlpha != 0)
        {
            LCDCDev.ReConfigAlpha = 0;
            LcdCtrl_FrontGroundSet(&LCDCDev.FrontGrnd->AlphaConfig);
        }
        if (LCDCDev.FrontGrnd->AlphaConfig.AlphaLevel < 0x100)
        {
            DWDMA_Transmit(CH1, LCDCDev.FrontGrnd->LLPList, DWDMA_FIFO_HS);
            WriteReg32(BUFF_CTRL, (ReadReg32(BUFF_CTRL) | b_LCDC_FIFOEN)); //front data buffer address in LCDC
        }
    }
    else
    {
        if (Screen_GetAlphaEn() == FIFODisable)
            WriteReg32(BUFF_CTRL, ReadReg32(BUFF_CTRL) &(~b_LCDC_FIFOEN));
        else
        {
            DWDMA_DisChannel(CH1);
            DWDMA_Transmit(CH1, &AlphaDarkLLP, DWDMA_FIFO_HS);
            Screen_SetAlphaEn(FIFODisable);
        }
    }
    delay_nops(2500);          //wait for DMA complete
    WriteReg32(BUFF_CTRL, ReadReg32(BUFF_CTRL) | b_BUFF_START | b_BUFF_WRITE | b_BUFF_LINE0 | b_RS_HIGH);

    Screen_SetMCUUpDatStat(UpDateIdle);
    return ScreenOK;

}


/*---------------------------------------------------------
Name  :  Screen_RGBUpDate
Dec   :  RGB接口物理刷屏
Params:
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/
void Screen_RGBUpDate(void)
{
    UINT32 i;

    if (LCDCDev.Screen != 0x0)
    {
        DWDMA_DisChannel(CH0);
        if (LCDCDev.ReConfig)
        {
            LcdCtrl_BackGroundSet(&LCDCDev.Screen->LCDCConfig);         //config LCDC 的动态属性，不包括硬件属性
            LCDCDev.ReConfig = 0;
            if ((LCDCDev.Screen->ScrFormat == RGB565) || (LCDCDev.Screen->ScrFormat == RGB888))
            {
                for (i = 0; i < 4; i++)
                    memcpy((UINT32)RegLCDC_BUF + 4*i*LCDCDev.XSize, SDRAM_DARK_RGB, 4*LCDCDev.XSize);
                LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList);
                DWDMA_Transmit(CH0, LCDCDev.LLPTable.LLP + 1, DWDMA_YUV_HS);
            }
            else
            {
                if ((LCDCDev.Screen->ScrFormat == YUV420) || (LCDCDev.Screen->ScrFormat == YUV422))
                {
                    memcpy((UINT32)RegLCDC_BUF, SDRAM_DARK_UV, 2*LCDCDev.Screen->ViewXSize);
                    memcpy((UINT32)RegLCDC_BUF + 2*LCDCDev.Screen->ViewXSize, SDRAM_DARK_Y, 4*LCDCDev.Screen->ViewXSize);
                    DWDMA_DestScatter(CH0, LCDCDev.Screen->RawXSize / 4, (LCDCDev.Screen->ViewXSize - LCDCDev.Screen->RawXSize) / 4);
                }
                else
                {
                    memcpy((UINT32)RegLCDC_BUF, SDRAM_DARK_Y, 4*LCDCDev.Screen->ViewXSize);
                    memcpy((UINT32)RegLCDC_BUF + 6*LCDCDev.Screen->ViewXSize, SDRAM_DARK_UV, 2*LCDCDev.Screen->ViewXSize);
                }

                DWDMA_Transmit(CH0, LCDCDev.Screen->LLPList, DWDMA_YUV_HS);//开始刷上一屏
                LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList + 2);//将上一屏的最后指到当前屏开始位置
            }
        }
        else
        {
            if (LCDCDev.LLPTable.LLP != 0)
            {
                if ((LCDCDev.Screen->ScrFormat == RGB565) || (LCDCDev.Screen->ScrFormat == RGB888))
                {
                    LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList);
                    DWDMA_Transmit(CH0, LCDCDev.LLPTable.LLP + 1, DWDMA_YUV_HS);
                }
                else
                {
                    if (((LCDCDev.Screen->ScrFormat == YUV422)) || (LCDCDev.Screen->ScrFormat == YUV420))
                        DWDMA_DestScatter(CH0, LCDCDev.Screen->RawXSize / 4, (LCDCDev.Screen->ViewXSize - LCDCDev.Screen->RawXSize) / 4);
                    DWDMA_Transmit(CH0, LCDCDev.LLPTable.LLP + 3, DWDMA_YUV_HS);
                    LCDCDev.LLPTable = *(LCDCDev.Screen->LLPList + 2);
                }
            }
        }
    }
    if (LCDCDev.FrontGrnd != 0x0)
    {
        DWDMA_DisChannel(CH1);
        WriteReg32(BUFF_CTRL, ReadReg32(BUFF_CTRL)&(~b_LCDC_FIFOEN));  //front data buffer address in LCDC
        if (LCDCDev.ReConfigAlpha != 0)
        {
            LCDCDev.ReConfigAlpha = 0;
            LcdCtrl_FrontGroundSet(&LCDCDev.FrontGrnd->AlphaConfig);
        }
        if (LCDCDev.FrontGrnd->AlphaConfig.AlphaLevel < 0x100)
        {
            DWDMA_Transmit(CH1, LCDCDev.FrontGrnd->LLPList, DWDMA_FIFO_HS);
            WriteReg32(BUFF_CTRL, (ReadReg32(BUFF_CTRL) | b_LCDC_FIFOEN)); //front data buffer address in LCDC
        }
    }
    else
    {
        if (Screen_GetAlphaEn() == FIFODisable)
            WriteReg32(BUFF_CTRL, ReadReg32(BUFF_CTRL) &(~b_LCDC_FIFOEN));
        else
        {
            DWDMA_DisChannel(CH1);
            DWDMA_Transmit(CH1, &AlphaDarkLLP, DWDMA_FIFO_HS);
            Screen_SetAlphaEn(FIFODisable);
        }
    }
}


/*---------------------------------------------------------
Name  :  Screen_RGBIFIsr
Dec   :  RGB接口中断函数
Params:
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/
void Screen_RGBIFIsr(void)
{
    UINT32 temp;

    if (Screen_GetType() == MCULCD)//MCU式刷屏时关闭RGB式刷屏
        return;
    if (((temp = ReadReg32(LCDC_STA)) & b_VERT_ACTIVE) == 0x0)
    {
        Screen_RGBUpDate();
    }
}


/*---------------------------------------------------------
Name  :  Screen_Configure
Dec   :  Screen上电初始化
Params:  XSize -> 屏的物理宽度
         YSize -> 屏的物理高度
         ScreenType -> 显示模块的类型
         TvoutType -> 视频或系统UI
         TvoutSize -> TVOUT显示大小
         TvoutMode -> TVOUT显示制式
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/
void Screen_Configure(UINT16 XSize, UINT16 YSize, SCREENTYPE ScreenType, TVOUTPARA *pTVoutPara)
{
    UINT32 frame;

    while (Screen_GetMCUIFStatus() == BUSY);//mcu测试，是否获取得到

    LCDCDev.XSize = XSize;
    LCDCDev.YSize = YSize;
    LCDCDev.ReConfig = 0;
    LCDCDev.Screen = 0x0;
    LCDCDev.FrontGrnd = 0x0;
    LCDCDev.ReConfigAlpha = 0;
    LCDCDev.LLPTable.LLP = 0;

    Screen_SetType(ScreenType);
    DWDMA_Init();

    for (frame = 0; frame < 4; frame++)
        memcpy((UINT32)RegLCDC_BUF + 4*frame*XSize, SDRAM_DARK_RGB, 4*XSize);

    LcdCtrl_Configure(XSize, YSize, pTVoutPara);

    if (Screen_GetType() == MCULCD)
        Intr_Disable(INTC_LCDC);
    else
        Intr_Enable(INTC_LCDC);
}


/*---------------------------------------------------------
Name  :  Screen_PowerOnInit
Dec   :  Screen上电初始化,只调用一次
Params:  XSize -> 屏的物理宽度
         YSize -> 屏的物理高度
         TvoutSize -> TVOUT显示大小
         TvoutMode -> TVOUT显示制式
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/
void Screen_PowerOnInit(UINT16 XSize, UINT16 YSize, TVOUTPARA *pTVoutPara)
{
    UINT32 frame;

    for (frame = 0; frame < 2560; frame++)
        SDRAM_DARK_Y[frame] = 0x10101010;

    for (frame = 0; frame < 1280; frame++)
        SDRAM_DARK_UV[frame] = 0x80808080;

    for (frame = 0; frame < 1280; frame++)
        SDRAM_DARK_RGB[frame] = 0x00000000;

    LcdCtrl_PowerOnInit();
#if 1
#ifdef MCU_PANEL
    Screen_Configure(XSize, YSize, MCULCD, pTVoutPara);
#else
    Screen_Configure(XSize, YSize, RGBLCD, pTVoutPara);
#endif
#else
    Screen_Configure(XSize, YSize, TVOUT, pTVoutPara);
    Tvout_Display(TV_ON, TV_PAL50);
#endif
    Intr_SetType(INTC_LCDC, POSITIVE_EDGE);
    Intr_RegISR(INTC_LCDC, Screen_RGBIFIsr);
}


/*---------------------------------------------------------
Name  :  Screen_CreatRGB
Dec   :  创建背景为RGB888的相关设置参数
Params:  Screen   -> RGB888背景的相关配置参数
         LLPList  -> LLP链条首地址
         SdramAddr-> 数据源首地址
         XSize    -> 数据源宽度
         YSize    -> 数据源高度
Return:
Author:  nzy
Date  :
-----------------------------------------------------------*/