裸机S3C6410显示控制器(4)- 显示图像到屏幕
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裸机S3C6410显示控制器(4)- 显示图像到屏幕
分类： [项目]S3C6410移植LINUX2012-11-08 22:41 186人阅读 评论(0) 收藏 举报
最近忙于工作和家庭，这几天才得以继续完成S3C6410的LCD裸机程序。
（1）背光控制
刚开始误认为drivers/video/mini6410_backlight.c是背光的驱动程序，但实际它不是。TINY6410的LCD屏的驱动不同于其它LCD的驱动写法，它使用所谓的“一线触屏”驱动，驱动文件是drivers/input/touchscreen/mini6410_1wire_host.c。
驱动初始化：
- static int __init dev_init(void)
- {
- int ret;
- ret = misc_register(&ts_misc) | misc_register(&bl_misc) ;
- //set PWM as output, set output is 1.
- set_pin_up();
- set_pin_value(1);
- set_pin_as_output();
- if (ret == 0) {
- setup_irq(IRQ_TIMER3, &timer_for_1wire_irq);
- ret = init_timer_for_1wire();
- init_timer(&one_wire_timer);
- one_wire_timer_proc(0); //设置背光为127 (默认)
- create_proc_read_entry("driver/one-wire-info", 0, NULL, read_proc, NULL);
- }
- if (ret == 0) {
- printk (TOUCH_DEVICE_NAME"\tinitialized\n");
- printk (BACKLIGHT_DEVICE_NAME"\tinitialized\n");
- }
- return ret;
- }
- static void __exit dev_exit(void)
- {
- exitting = 1;
- remove_proc_entry("driver/one-wire-info", NULL);
- del_timer_sync(&one_wire_timer);
- free_irq(IRQ_TIMER3, &timer_for_1wire_irq);
- misc_deregister(&ts_misc);
- misc_deregister(&bl_misc);
- }
一线触屏状态机：
- enum {
- IDLE,
- START,
- REQUEST,
- WAITING,
- RESPONSE,
- STOPING,
- } one_wire_status = IDLE;
- static volatile unsigned int io_bit_count;
- static volatile unsigned int io_data;
- static volatile unsigned char one_wire_request;
- static irqreturn_t timer_for_1wire_interrupt(int irq, void *dev_id)
- {
- io_bit_count--;
- switch(one_wire_status) {
- case START:
- if (io_bit_count == 0) {
- io_bit_count = 16;
- one_wire_status = REQUEST;
- }
- break;
- case REQUEST:
- // Send a bit
- set_pin_value(io_data & (1U << 31));
- io_data <<= 1;
- if (io_bit_count == 0) {
- io_bit_count = 2;
- one_wire_status = WAITING;
- }
- break;
- case WAITING:
- if (io_bit_count == 0) {
- io_bit_count = 32;
- one_wire_status = RESPONSE;
- }
- if (io_bit_count == 1) {
- set_pin_as_input();
- set_pin_value(1);
- }
- break;
- case RESPONSE:
- // Get a bit
- io_data = (io_data << 1) | get_pin_value();
- if (io_bit_count == 0) {
- io_bit_count = 2;
- one_wire_status = STOPING;
- set_pin_value(1);
- set_pin_as_output();
- one_wire_session_complete(one_wire_request, io_data);
- }
- break;
- case STOPING: // 2
- if (io_bit_count == 0) {
- one_wire_status = IDLE;
- stop_timer_for_1wire();
- }
- break;
- default:
- stop_timer_for_1wire();
- }
- return IRQ_HANDLED;
- }
（2）LCD的初始化
- void LCDTest()
- {
- int i, j;
- trace("Enter LCDTest().\r\n");
- (*(volatile unsigned int *)0x7410800c)=0; //Must be '0' for Normal-path instead of By-pass
- ///set GPE0
- //*(volatile unsigned int*)0x7F008080 = 0x00011111;
- //*(volatile unsigned int*)0x7F008084 = 0x00000001;
- //*(volatile unsigned int*)0x7F008088 = 0x00000000;
- GPIO_SetLCDType(eRGBIF); //set LCD mode to RGB mode
- //Set LCD GPIO Port
- GPIO_SetFunctionAll(eGPIO_I, 0xaaaaaaaa, 2); //GPI[15..0]-> RGB VD[15..0]
- GPIO_SetFunctionAll(eGPIO_J, 0xaaaaaaaa, 2); //GPJ[7..0]-> RGB VD[23..16], GPJ[11..8]-> VCLK, VDEN, VSYNC, HSYNC
- GPIO_SetFunctionEach(eGPIO_E, eGPIO_0, 1); //GPF[15] -> Output
- GPIO_SetDataEach(eGPIO_E, eGPIO_0 , 1); //GPF[15] -> High
- trace("LCD GPIO init ok.\r\n");
- //other pin gpio not set yet.
- //LCD reset has not done
- //LCD cmd init has not done
- //begin base display test.
- eBgWin = WIN0;
- eFgWin = WIN1;
- /* RGB 5-6-5 format for SMDK EVAL BOARD */
- eBgBpp = RGB16;
- eFgBpp = RGB16;
- *(volatile unsigned long *)0x7E00F030 |= 1 << 3; //set lcd clk enable in hclk_gate register
- LCD_InitDISPC(eBgBpp, uLcdFbAddr, eBgWin, false);
- LCD_SetWinOnOff(1, eBgWin);
- trace("Invoke LCD_Start().\r\n");
- LCD_Start();
- trace("Invoke set_bklight.\r\n");
- set_bklight();
- }
- void LCD_InitBase(void)
- {
- u32 uLcdCon;
- u32 uILcdIntCon;
- u32 uClkVal, uClkDir;
- CLK_SRC_m eVClkSrc;
- u32 uVidconReg;
- u32 i;
- LCD_WINDOW eWin;
- oLcdc.m_bIsAutoBuf = false;
- oLcdc.m_uScanMode = 0; // progressive mode
- oLcdc.m_bIsLocalCalled[0] = false;
- oLcdc.m_bIsLocalCalled[1] = false;
- oLcdc.m_bIsLocalCalled[2] = false;
- /*set lcd clock source:
- CLKSEL_F_HCLK (0<<2)
- CLKSEL_F_SYSCON (1<<2)
- CLKSEL_F_EXTCLK (3<<2)
- */
- oLcdc.m_uVideoClockSource = CLKSEL_F_HCLK;
- eVClkSrc = SRC_HCLK;
- oLcdc.m_uLcdHSz = 800;
- oLcdc.m_uLcdVSz = 480;
- oLcdc.m_uVidOutFormat = VIDOUT_RGBIF;
- oLcdc.m_uDitherMode = RDITHPOS_5BIT|GDITHPOS_6BIT|BDITHPOS_5BIT;
- oLcdc.m_uDitherMode &= ~DITHERING_ENABLE;
- LcdcOutp32(rVIDCON1, IHSYNC_INVERT | IVSYNC_INVERT); //Check
- LcdcOutp32(rVIDTCON0, VBPDE(S3CFB_VBP) | VBPD(S3CFB_VBP) | VFPD(S3CFB_VFP) | VSPW(S3CFB_VSW));
- LcdcOutp32(rVIDTCON1, VFPDE(S3CFB_VFP) | HBPD(S3CFB_HBP) | HFPD(S3CFB_HFP) | HSPW(S3CFB_HSW));
- LcdcOutp32(rVIDTCON2, LINEVAL(oLcdc.m_uLcdVSz-1) | HOZVAL(oLcdc.m_uLcdHSz-1));
- LcdcOutp32(rDITHMODE, oLcdc.m_uDitherMode); // Fixed Dithering Matrix
- LCD_Stop();
- //Check up LCD to turn off
- while (1)
- {
- uLcdCon=Inp32(LCD_BASE+rVIDCON0);
- if( (uLcdCon&0x03) == 0 ) // checking whether disable the video output and the Display control signal or not.
- break;
- }
- LCD_SetClkSrc(eVClkSrc);
- /**
- * WARNING: CLKVAL is defined upon 133 MHz HCLK, please update it
- * when HCLK freq changed.
- * VCLK = 133 MHz / (CLKVAL + 1)
- * = ~33.25 MHz
- */
- uClkVal = 3;
- uClkDir = 1;
- uVidconReg =
- PROGRESSIVE | oLcdc.m_uVidOutFormat | SUB_16_MODE | MAIN_16_MODE | PNRMODE_RGB_P | CLKVALUP_ALWAYS |
- CLKVAL_F(uClkVal) | /*VCLKEN_DISABLE |*/ CLKDIR_F(uClkDir) | oLcdc.m_uVideoClockSource|
- ENVID_DISABLE | ENVID_F_DISABLE;
- LcdcOutp32(rVIDCON0, uVidconReg);
- uILcdIntCon =Inp32(LCD_BASE+rVIDINTCON0);
- LcdcOutp32(rVIDINTCON0, 0);
- //LcdcOutp32(rVIDINTCON0, uILcdIntCon | FRAMESEL0_BACK | FRAMESEL1_NONE | INTFRMEN_DISABLE |
- // FIFOSEL_WIN0 | FIFOLEVEL_25 | INTFIFOEN_DISABLE | INTEN_DISABLE);
- LCD_SetAllWinOnOff(0); // Turn all windows off
- LCD_SetAllWinColorMapOnOff(0); // Turn all windows color map off
- LCD_SetAllWinColorKeyOnOff(0); // Turn all windows Color Key off
- for (i=1; i<5; i++)
- {
- eWin =
- (i == 1) ? WIN1 :
- (i == 2) ? WIN2 :
- (i == 3) ? WIN3 : WIN4;
- LCD_SetAlpha(0x0, 0x0, 0x0, 0x0, 0x0, 0x0, eWin);
- }
- }
- void LCD_InitWinRegs(LCD_WINDOW eWin)
- {
- u32 uWinConXReg;
- u32 uAlphaValReg;
- u32 uFrmBufStAddrReg;
- u32 uFrmBufEndAddrReg;
- u32 uOffsetPageWidthReg;
- u32 uOsdLeftPosReg;
- u32 uOsdRightPosReg;
- u32 uWinConXRegVal;
- u32 uLcdEndX, uLcdEndY;
- uWinConXReg =
- (eWin == WIN0) ? rWINCON0 :
- (eWin == WIN1) ? rWINCON1 :
- (eWin == WIN2) ? rWINCON2 :
- (eWin == WIN3) ? rWINCON3 : rWINCON4;
- uAlphaValReg =
- (eWin == WIN1) ? rVIDOSD1C :
- (eWin == WIN2) ? rVIDOSD2C :
- (eWin == WIN3) ? rVIDOSD3C :
- (eWin == WIN4) ? rVIDOSD4C : rVIDOSD1C;
- uFrmBufStAddrReg =
- (eWin == WIN0) ? rVIDW00ADD0B0 :
- (eWin == WIN1) ? rVIDW01ADD0B0:
- (eWin == WIN2) ? rVIDW02ADD0 :
- (eWin == WIN3) ? rVIDW03ADD0 : rVIDW04ADD0;
- uFrmBufEndAddrReg =
- (eWin == WIN0) ? rVIDW00ADD1B0 :
- (eWin == WIN1) ? rVIDW01ADD1B0 :
- (eWin == WIN2) ? rVIDW02ADD1 :
- (eWin == WIN3) ? rVIDW03ADD1 : rVIDW04ADD1;
- uOffsetPageWidthReg =
- (eWin == WIN0) ? rVIDW00ADD2 :
- (eWin == WIN1) ? rVIDW01ADD2 :
- (eWin == WIN2) ? rVIDW02ADD2 :
- (eWin == WIN3) ? rVIDW03ADD2 : rVIDW04ADD2;
- uOsdLeftPosReg =
- (eWin == WIN0) ? rVIDOSD0A :
- (eWin == WIN1) ? rVIDOSD1A :
- (eWin == WIN2) ? rVIDOSD2A :
- (eWin == WIN3) ? rVIDOSD3A : rVIDOSD4A;
- uOsdRightPosReg =
- (eWin == WIN0) ? rVIDOSD0B :
- (eWin == WIN1) ? rVIDOSD1B :
- (eWin == WIN2) ? rVIDOSD2B :
- (eWin == WIN3) ? rVIDOSD3B : rVIDOSD4B;
- uWinConXRegVal = 0;
- if (eWin == WIN0)
- {
- if (!oLcdc.m_bIsLocalCalled[0]) // Input path is DMA
- {
- uWinConXRegVal =
- W0DMA | W0BUF0 | W0BUFAUTO_DISABLE | BITSWP_DISABLE |
- oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode|
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | oLcdc.m_uBppMode |
- ENWIN_F_DISABLE;
- }
- else // Input path is Local
- {
- //Assert(oLcdc.m_eLocalIn[0] == IN_POST);
- if(oLcdc.m_uLocalInColorSpace[0] == LOCALIN_YCbCr)
- {
- uWinConXRegVal =
- W0LOCAL_POST | W0BUF0 | W0BUFAUTO_DISABLE | BITSWP_DISABLE |
- oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode| IN_LOCAL_YUV |
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | oLcdc.m_uBppMode |
- ENWIN_F_DISABLE;
- }
- else
- {
- uWinConXRegVal =
- W0LOCAL_POST | W0BUF0 | W0BUFAUTO_DISABLE | BITSWP_DISABLE |
- oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode| IN_LOCAL_RGB |
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | oLcdc.m_uBppMode |
- ENWIN_F_DISABLE;
- }
- }
- LcdcOutp32(rVIDW00ADD0B1, oLcdc.m_uDoubleBufStAddr[0]);
- LcdcOutp32(rVIDW00ADD1B1, oLcdc.m_uDoubleBufEndAddr[0]);
- LcdcOutp32(rVIDOSD0C, OSDSIZE(oLcdc.m_uViewHSz[0]*oLcdc.m_uViewVSz[0]));
- }
- else
- {
- if (eWin == WIN1)
- {
- if (!oLcdc.m_bIsLocalCalled[1]) // Input path is DMA
- {
- uWinConXRegVal =
- W0DMA | W0BUF0 | W0BUFAUTO_DISABLE | BITSWP_DISABLE |
- oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode|
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | BLD_PIX_PLANE | oLcdc.m_uBppMode |
- BLEND_ALPHA0_PLANE | ENWIN_F_DISABLE;
- }
- else // Input path is Local
- {
- //Assert(oLcdc.m_eLocalIn[1] == IN_POST || oLcdc.m_eLocalIn[1] == IN_CIM);
- if(oLcdc.m_uLocalInColorSpace[1] == LOCALIN_YCbCr)
- {
- uWinConXRegVal =
- ((oLcdc.m_eLocalIn[1] == IN_CIM) ? W1ENLOCAL_CIM : W1ENLOCAL_POST) |
- W1LOCAL| W0BUF0 | W0BUFAUTO_DISABLE | BITSWP_DISABLE |
- oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode| IN_LOCAL_YUV |
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | BLD_PIX_PLANE | oLcdc.m_uBppMode |
- BLEND_ALPHA0_PLANE | ENWIN_F_DISABLE;
- }
- else
- {
- uWinConXRegVal =
- ((oLcdc.m_eLocalIn[1] == IN_CIM) ? W1ENLOCAL_CIM : W1ENLOCAL_POST) |
- W1LOCAL| W0BUF0 | W0BUFAUTO_DISABLE | BITSWP_DISABLE |
- oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode| IN_LOCAL_RGB |
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | BLD_PIX_PLANE | oLcdc.m_uBppMode |
- BLEND_ALPHA0_PLANE | ENWIN_F_DISABLE;
- }
- }
- // set double buf. addr. and offset size
- LcdcOutp32(rVIDW01ADD0B1, oLcdc.m_uDoubleBufStAddr[1]);
- LcdcOutp32(rVIDW01ADD1B1, oLcdc.m_uDoubleBufEndAddr[1]);
- LcdcOutp32(rVIDOSD1D, OSDSIZE(oLcdc.m_uViewHSz[1]*oLcdc.m_uViewVSz[1]));
- }
- else // eWin == WIN2 OR WIN3 OR WIN4
- {
- if (eWin == WIN2)
- {
- if (!oLcdc.m_bIsLocalCalled[2]) // Input path is DMA
- {
- uWinConXRegVal =
- W0DMA | BITSWP_DISABLE |
- oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode|
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | BLD_PIX_PLANE | oLcdc.m_uBppMode |
- BLEND_ALPHA0_PLANE | ENWIN_F_DISABLE;
- }
- else // Input path is Local
- {
- //Assert(oLcdc.m_eLocalIn[2] == IN_POST || oLcdc.m_eLocalIn[2] == IN_CIM);
- if(oLcdc.m_uLocalInColorSpace[2] == LOCALIN_YCbCr)
- {
- uWinConXRegVal =
- ((oLcdc.m_eLocalIn[2] == IN_CIM) ? W1ENLOCAL_CIM : W1ENLOCAL_POST) |
- W1LOCAL | BITSWP_DISABLE |oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode| IN_LOCAL_YUV |
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | BLD_PIX_PLANE | oLcdc.m_uBppMode |
- BLEND_ALPHA0_PLANE | ENWIN_F_DISABLE;
- }
- else
- {
- uWinConXRegVal =
- ((oLcdc.m_eLocalIn[2] == IN_CIM) ? W1ENLOCAL_CIM : W1ENLOCAL_POST) |
- W1LOCAL | BITSWP_DISABLE |oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode| IN_LOCAL_RGB |
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen | BLD_PIX_PLANE | oLcdc.m_uBppMode |
- BLEND_ALPHA0_PLANE | ENWIN_F_DISABLE;
- }
- }
- LcdcOutp32(rVIDOSD2D, OSDSIZE(oLcdc.m_uViewHSz[2]*oLcdc.m_uViewVSz[2]));
- }
- else // eWin == WIN3 || eWin == WIN4
- {
- uWinConXRegVal =
- BITSWP_DISABLE | oLcdc.m_uBytSwpMode | oLcdc.m_uHawSwpMode |
- oLcdc.m_uMinBurstLen | oLcdc.m_uMaxBurstLen |
- BLD_PIX_PLANE | oLcdc.m_uBppMode | BLEND_ALPHA0_PLANE | ENWIN_F_DISABLE;
- }
- }
- LcdcOutp32(uAlphaValReg,
- ALPHA0_R(0xF) | ALPHA0_G(0xF) | ALPHA0_B(0xF) |
- ALPHA1_R(0xF) | ALPHA1_G(0xF)| ALPHA1_B(0xF));
- }
- LcdcOutp32(uWinConXReg, uWinConXRegVal);
- LcdcOutp32(uFrmBufStAddrReg, oLcdc.m_uFbStAddr[eWin]);
- LcdcOutp32(uFrmBufEndAddrReg, oLcdc.m_uFbEndAddr[eWin]);
- LcdcOutp32(uOffsetPageWidthReg, (oLcdc.m_uOffsetSz[eWin]<<13) | oLcdc.m_uPageWidth[eWin]);
- uLcdEndX = oLcdc.m_uLcdStX + oLcdc.m_uViewHSz[eWin] - 1;
- uLcdEndY = oLcdc.m_uLcdStY + oLcdc.m_uViewVSz[eWin] - 1;
- if (oLcdc.m_uScanMode == 1) // Interlace mode
- {
- //Assert(!(oLcdc.m_uLcdStX%2)); // Left top -> Y coordinate must be even number in interlace mode
- //Assert(uLcdEndY%2); // Rigth bottom -> Y coordinate must be odd number in interlace mode
- // In interlace mode, Left Top Y(oLcdc.m_uLcdStY) and Right Bottom Y(uLcdEndY) must be divided by 2.
- // And, Right Bottom Y must be rounded down
- LcdcOutp32(uOsdLeftPosReg, OSD_LTX_F(oLcdc.m_uLcdStX) | (OSD_LTY_F(oLcdc.m_uLcdStY)>>1));
- LcdcOutp32(uOsdRightPosReg, OSD_RBX_F(uLcdEndX) | (OSD_RBY_F(uLcdEndY)>>1));
- }
- else // Progressive mode
- {
- LcdcOutp32(uOsdLeftPosReg, OSD_LTX_F(oLcdc.m_uLcdStX) | OSD_LTY_F(oLcdc.m_uLcdStY));
- LcdcOutp32(uOsdRightPosReg, OSD_RBX_F(uLcdEndX) | OSD_RBY_F(uLcdEndY));
- }
- }
- void LCD_SetWinOnOff(u32 uOnOff, LCD_WINDOW eWin)
- {
- u32 uWinTemp;
- u32 uWinConReg;
- uWinConReg =
- (eWin == WIN0) ? rWINCON0 :
- (eWin == WIN1) ? rWINCON1 :
- (eWin == WIN2) ? rWINCON2 :
- (eWin == WIN3) ? rWINCON3 : rWINCON4;
- uWinTemp=Inp32(LCD_BASE+uWinConReg);
- if (uOnOff) // Turn OSD on
- uWinTemp |= ENWIN_F_ENABLE;
- else // Turn OSD off
- uWinTemp &= ~ENWIN_F_ENABLE;
- LcdcOutp32(uWinConReg, uWinTemp);
- }
- void LCD_InitWin(CSPACE eBpp,
- u32 uFrameH, //800
- u32 uFrameV, //480
- u32 uX_Frame, //0
- u32 uY_Frame, //0
- u32 uViewH, //800
- u32 uViewV, //480
- u32 uX_Lcd, //0
- u32 uY_Lcd, //0
- u32 uFbAddr, //
- LCD_WINDOW eWin,
- u8 bIsDoubleBuf)
- {
- u32 uOffset;
- //u32 uLineVal;
- u32 uBurstSize;
- //if ( (eWin != WIN0 && eWin != WIN1) && bIsDoubleBuf == true )
- // Assert(0); // In WIN2, WIN3 or WIN4, Double buffering can't be supported
- // Viewport size must be less than LCD size
- //Assert(uViewH <= oLcdc.m_uLcdHSz);
- //Assert(uViewV <= oLcdc.m_uLcdVSz);
- // Check (X,Y) coordinate is valid in LCD and Frame?
- //Assert( ((uX_Frame + uViewH) <= uFrameH) && ((uY_Frame + uViewV) <= uFrameV) );
- //Assert( (uX_Lcd + uViewH <= oLcdc.m_uLcdHSz) && (uY_Lcd + uViewV <= oLcdc.m_uLcdVSz) );
- // Double buffering is supported by only window 0 and window 1
- //if ( ((eWin != WIN0) && (eWin != WIN1)) && (bIsDoubleBuf == true) )
- // Assert(0);
- oLcdc.m_uFrmHSz[eWin] = uFrameH; //800
- oLcdc.m_uFrmVSz[eWin] = uFrameV; //480
- oLcdc.m_uViewHSz[eWin] = uViewH; //800
- oLcdc.m_uViewVSz[eWin] = uViewV; //480
- oLcdc.m_uLcdStX = uX_Lcd; //0
- oLcdc.m_uLcdStY = uY_Lcd; //0
- uOffset = oLcdc.m_uFrmHSz[eWin] - oLcdc.m_uViewHSz[eWin]; //=0
- oLcdc.m_uBytSwpMode = BYTSWP_DISABLE; // BYTE swap disable
- oLcdc.m_uHawSwpMode = HAWSWP_DISABLE; // Half-Word swap disable
- oLcdc.m_uMaxBurstLen = MAX_BURSTLEN_16WORD; // DMA'burst max 16word burst
- oLcdc.m_uMinBurstLen = MIN_BURSTLEN_16WORD; // DMA'burst min 16 word burst
- //m_uBytes濂藉儚鏄鍗犲灏戜釜瀛楄妭锛屽鏋滃皬浜庝竴涓瓧鑺傦紝閭ｄ箞m_uBytes=1锛屽苟涓攎_uBits琛ㄧず鍗犲灏戜綅銆?
- //else if (eBpp == RGB16)
- //{
- oLcdc.m_uBytes = 2;
- oLcdc.m_uBits = 1;
- //Assert( !(uOffset%2) ); // Must keep to word-alignment
- oLcdc.m_uBppMode = BPPMODE_F_16BPP_565; //5<<2
- oLcdc.m_uHawSwpMode = HAWSWP_ENABLE; // 1<<16
- //}
- // Get offsetsize, pagewidth and lineVal
- if (oLcdc.m_uFrmHSz[eWin] >= oLcdc.m_uViewHSz[eWin])
- {
- oLcdc.m_uOffsetSz[eWin] = uOffset*oLcdc.m_uBytes/oLcdc.m_uBits; //0
- oLcdc.m_uPageWidth[eWin] = oLcdc.m_uViewHSz[eWin]*oLcdc.m_uBytes/oLcdc.m_uBits; //=1600
- // Offset size must be more than the burst size
- uBurstSize =
- (oLcdc.m_uMaxBurstLen == MAX_BURSTLEN_16WORD) ? 16*4 : //16
- (oLcdc.m_uMaxBurstLen == MAX_BURSTLEN_8WORD) ? 8*4 : 4*4;
- // Offset size must be more than the burst size
- //Assert( oLcdc.m_uOffsetSz[eWin] == 0 || !(oLcdc.m_uOffsetSz[eWin]%4) );
- //Assert(oLcdc.m_uPageWidth[eWin] > uBurstSize); // Page width must be more than burst size and be word-aligned
- //uLineVal = oLcdc.m_uViewVSz[eWin] - 1;
- }
- else
- {
- //Assert(0);
- }
- oLcdc.m_uImgStAddr[eWin] = uFbAddr;
- oLcdc.m_uFbStAddr[eWin] = uFbAddr + (oLcdc.m_uFrmHSz[eWin]*uY_Frame + uX_Frame)*oLcdc.m_uBytes/oLcdc.m_uBits; //= uFbAddr
- oLcdc.m_uFbEndAddr[eWin] = oLcdc.m_uFbStAddr[eWin] + (oLcdc.m_uOffsetSz[eWin]+oLcdc.m_uPageWidth[eWin])*(uFrameV); //uFbAddr + 1600*480
- if ( (bIsDoubleBuf == true) && ((eWin == WIN0) || (eWin == WIN1)) )
- {
- oLcdc.m_uDoubleBufImgStAddr[eWin] = oLcdc.m_uImgStAddr[eWin] + oLcdc.m_uFrmHSz[eWin]*oLcdc.m_uFrmVSz[eWin]*oLcdc.m_uBytes/oLcdc.m_uBits;
- oLcdc.m_uDoubleBufStAddr[eWin] = oLcdc.m_uFbStAddr[eWin] + oLcdc.m_uFrmHSz[eWin]*oLcdc.m_uFrmVSz[eWin]*oLcdc.m_uBytes/oLcdc.m_uBits;
- oLcdc.m_uDoubleBufEndAddr[eWin] = oLcdc.m_uDoubleBufStAddr[eWin] + (oLcdc.m_uOffsetSz[eWin]+oLcdc.m_uPageWidth[eWin])*(uFrameV);
- }
- else if ( (bIsDoubleBuf == false) && ((eWin == WIN0) || (eWin == WIN1)) )
- {
- oLcdc.m_uDoubleBufStAddr[eWin] = oLcdc.m_uFbStAddr[eWin];
- oLcdc.m_uDoubleBufEndAddr[eWin] = oLcdc.m_uFbEndAddr[eWin];
- }
- LCD_InitWinRegs(eWin);
- // For back-ward compatibility LCDC V2.0
- if(eWin == WIN0)
- LCD_SetWinOnOff(1, WIN0); // first arguement == 1 -> turn on window
- }
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