s3c2440的CAMERA操作控制程序（OV9650摄像头）

/************************************************************ File Name : camif.c Descriptions -S3C2440 camera test routines & basic libraries History - July 23, 2003. Draft Version 0.0 by purnnamu - Janualy 15, 2004. Modifed by Boaz Copyright 2004 SAMSUNG Electronics. However, Anybody can use this code without our permission. *************************************************************/ #include "def.h" #include "option.h" #include "2440addr.h" #include "2440lib.h" #include "camif.h" #include "camproset.h" // for camera setting extern unsigned char ucdragon_240_100[]; extern unsigned char xyx_240_320[]; //***************************************************************************** #define MVAL (13) #define MVAL_USED (0) //0=each frame 1=rate by MVAL #define INVVDEN (1) //0=normal 1=inverted #define BSWP (0) //Byte swap control #define HWSWP (1) //Half word swap control #define M5D(n) ((n) & 0x1fffff) // To get lower 21bits //TFT 240320 #define LCD_XSIZE_TFT_240320 (240) #define LCD_YSIZE_TFT_240320 (320) //TFT 240320 #define SCR_XSIZE_TFT_240320 (240) #define SCR_YSIZE_TFT_240320 (320) //#define SCR_XSIZE_TFT_240320 (320) //#define SCR_YSIZE_TFT_240320 (240) //TFT240320 #define HOZVAL_TFT_240320 (LCD_XSIZE_TFT_240320-1) #define LINEVAL_TFT_240320 (LCD_YSIZE_TFT_240320-1) //Timing parameter for LCD LQ035Q7DB02 #define VBPD_240320 (4) //垂直同步信号的后肩 #define VFPD_240320 (4) //垂直同步信号的前肩 #define VSPW_240320 (4) //垂直同步信号的脉宽 #define HBPD_240320 (13) //水平同步信号的后肩 #define HFPD_240320 (4) //水平同步信号的前肩 #define HSPW_240320 (18) //水平同步信号的脉宽 #define CLKVAL_TFT_240320 (7) //FCLK=180MHz,HCLK=90MHz,VCLK=6.5MHz // GPB1/TOUT1 for Backlight control(PWM) #define GPB1_TO_OUT() (rGPBUP &= 0xfffd, rGPBCON &= 0xfffffff3, rGPBCON |= 0x00000004) #define GPB1_TO_1() (rGPBDAT |= 0x0002) #define GPB1_TO_0() (rGPBDAT &= 0xfffd) volatile static unsigned short LCD_BUFFER_CAM[SCR_YSIZE_TFT_240320][SCR_XSIZE_TFT_240320]; //***************************************************************************** volatile U32 camTestMode; volatile U32 camCodecCaptureCount; volatile U32 camPviewCaptureCount; volatile U32 camCodecStatus; volatile U32 camPviewStatus; volatile U32 amount; U32 save_GPJCON, save_GPJDAT, save_GPJUP; U8 flagCaptured_P = 0; U8 flagCaptured_C = 0; int Test_OV9650(void); //hzh void Display_Cam_Image(U32 size_x, U32 size_y); /************************************************************** LCD视频和控制信号输出或者停止，1开启视频输出 **************************************************************/ static void Lcd_EnvidOnOff(int onoff) { if(onoff==1) rLCDCON1|=1; // ENVID=ON else rLCDCON1 =rLCDCON1 & 0x3fffe; // ENVID Off } /************************************************************** 320×240 8Bpp TFT LCD 电源控制引脚使能 **************************************************************/ static void Lcd_PowerEnable(int invpwren,int pwren) { //GPG4 is setted as LCD_PWREN rGPGUP=rGPGUP&(~(1<<4))|(1<<4); // Pull-up disable rGPGCON=rGPGCON&(~(3<<8))|(3<<8); //GPG4=LCD_PWREN rGPGDAT = rGPGDAT | (1<<4) ; // invpwren=pwren; //Enable LCD POWER ENABLE Function rLCDCON5=rLCDCON5&(~(1<<3))|(pwren<<3); // PWREN rLCDCON5=rLCDCON5&(~(1<<5))|(invpwren<<5); // INVPWREN } //***************************************************************************** static void LCD_LTS350Q1_PE1_Init(void) { //qjy: turn on the blacklight! GPB1_TO_OUT(); GPB1_TO_1(); // rGPCUP=0xffffffff; // Disable Pull-up register rGPCUP = 0x00000000; // rGPCCON=0xaaaa56a9; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND rGPCCON = 0xaaaa02a9; // rGPDUP=0xffffffff; // Disable Pull-up register rGPDUP = 0x00000000; rGPDCON=0xaaaaaaaa; //Initialize VD[15:8] rLCDCON1=(CLKVAL_TFT_240320<<8)|(MVAL_USED<<7)|(3<<5)|(12<<1)|0; // TFT LCD panel,12bpp TFT,ENVID=off rLCDCON2=(VBPD_240320<<24)|(LINEVAL_TFT_240320<<14)|(VFPD_240320<<6)|(VSPW_240320); rLCDCON3=(HBPD_240320<<19)|(HOZVAL_TFT_240320<<8)|(HFPD_240320); rLCDCON4=(MVAL<<8)|(HSPW_240320); // rLCDCON5=(1<<11)|(0<<9)|(0<<8)|(0<<6)|(BSWP<<1)|(HWSWP); //FRM5:6:5,HSYNC and VSYNC are inverted rLCDCON5 = (1<<11) | (1<<10) | (1<<9) | (1<<8) | (0<<7) | (0<<6) | (1<<3) |(BSWP<<1) | (HWSWP); rLCDSADDR1=(((U32)LCD_BUFFER_CAM>>22)<<21)|M5D((U32)LCD_BUFFER_CAM>>1); rLCDSADDR2=M5D( ((U32)LCD_BUFFER_CAM+(SCR_XSIZE_TFT_240320*LCD_YSIZE_TFT_240320*2))>>1 ); rLCDSADDR3=(((SCR_XSIZE_TFT_240320-LCD_XSIZE_TFT_240320)/1)<<11)|(LCD_XSIZE_TFT_240320/1); rLCDINTMSK|=(3); // MASK LCD Sub Interrupt rTCONSEL &= (~7) ; // Disable LPC3480 // rTCONSEL&=~((1<<4)|1); // Disable LCC3600, LPC3600 rTPAL=0; // Disable Temp Palette //LcdBkLtSet( 70 ) ; Lcd_PowerEnable(0, 1); Lcd_EnvidOnOff(1); //turn on vedio } //***************************************************************************** static void Paint_Bmp(int x0,int y0,int h,int l,unsigned char bmp[]) { int x,y; U32 c; int p = 0; for( y = y0 ; y < l ; y++ ) { for( x = x0 ; x < h ; x++ ) { c = bmp[p+1] | (bmp[p]<<8) ; if ( ( (x0+x) < SCR_XSIZE_TFT_240320) && ( (y0+y) < SCR_YSIZE_TFT_240320) ) LCD_BUFFER_CAM[y0+y][x0+x] = c ; p = p + 2 ; } } } void Camera_Test(void) { int i; Uart_Printf("\nCamera Preview Test\n"); CamPortSet(); CamReset(); // Initializing camif rCLKCON |= (1<<19); // enable camclk ChangeUPllValue(56, 2, 1); // UPLL clock = 96MHz, PLL input 12MHz rCLKDIVN|=(1<<3); // UCLK 48MHz setting for UPLL 96MHz // 0:48MHz, 1:24MHz, 2:16MHz, 3:12MHz... // Camera clock = UPLL/[(CAMCLK_DIV+1)X2] switch(USED_CAM_TYPE) { case CAM_AU70H : if (AU70H_VIDEO_SIZE==1152) SetCAMClockDivider(CAMCLK24000000); //Set Camera Clock for SXGA if (AU70H_VIDEO_SIZE==640) SetCAMClockDivider(CAMCLK16000000); //Set Camera Clock for VGA break; case CAM_S5X3A1 : SetCAMClockDivider(CAMCLK24000000); //Set Camera Clock for SXGA break; default : // 24MHz SetCAMClockDivider(CAMCLK24000000); //Set Camera Clock 24MHz s5x532, ov7620 break; } #if (USED_CAM_TYPE==CAM_OV7620) i = Test_OV9650(); if( i ) { Uart_Printf("\nTest is failed!!!\n"); return ; } #else // Initializing camera module CamModuleReset(); // s5x532 must do this.. Delay(100); // ready time of s5x433, s5x532 IIC interface. needed... CameraModuleSetting(); #endif Uart_Printf("Initializing end...\n"); Test_CamPreview() ; Uart_Printf("\nCamera Preview Test End\n"); rCLKCON &= ~(1<<19); // disable camclk LCD_LTS350Q1_PE1_Init(); // } void CamPortSet(void) { save_GPJCON = rGPJCON; save_GPJDAT = rGPJDAT; save_GPJUP = rGPJUP; rGPJCON = 0x2aaaaaa; rGPJDAT = 0; rGPJUP = 0; } void CamPortReturn(void) { rGPJCON = save_GPJCON; rGPJDAT = save_GPJDAT; rGPJUP = save_GPJUP; } void CamPreviewIntUnmask(void) { rINTSUBMSK &= ~(BIT_SUB_CAM_P);//INT CAMERA Port A ENABLE rINTMSK &= ~(BIT_CAM); } void CamCodecIntUnmask(void) { rINTSUBMSK &= ~(BIT_SUB_CAM_C);//INT CAMERA Port B ENABLE rINTMSK &= ~(BIT_CAM); } void CamPreviewIntMask(void) { rINTSUBMSK |= BIT_SUB_CAM_P;//INT CAMERA Port A ENABLE rINTMSK |= (BIT_CAM); } void CamCodecIntMask(void) { rINTSUBMSK |= BIT_SUB_CAM_C;//INT CAMERA Port B ENABLE rINTMSK |= (BIT_CAM); } /****************************************************** * * * camera interface initialization * * * *********************