ov7670.c

ssd192Xv1 液晶驱动程序 驱动程序 彩屏液晶

#include "ssd192X.h"
#include "i2c.h"
#include "ov7670.h"

#if (OV7670_MODE==OV7670_QVGA)
int CAM_WIDTH=320;
int CAM_HEIGHT=240;
#else
int CAM_WIDTH=640;
int CAM_HEIGHT=480;
#endif

int CAM_FRAME_RATE=30;

void cam_hw_init(void)
{
	I2C i2c;

	SSD_REGWB(REG_VCLK_CONFIG_0,0x03);  // Cam running rate
//	SSD_REGWB(REG_VCLK_CONFIG_1,0x07);
	SSD_REGWB(REG_VCLK_CONFIG_1,0x17);

	// Reset HV7131
	
	SSD_REGWB(REG_DV_ENB,0x01);	// ENB_DV = 1)= RESET_DV = 1
	SSD_REGWB(REG_DV_ENB,0x00);	// ENB_DV = 1)= RESET_DV = 0
	SSD_REGWB(REG_DV_ENB,0x01);	// ENB_DV = 1)= RESET_DV = 1

	i2c.deviceID=I2C_DEVICE_ID;
	i2c.bitRate=1;
  	ssd192X_i2c_init(&i2c);


        mdelay(100);
        printk("VER: %x\n",ssd192X_i2c_readb_without_ACK(&i2c,0x0b));

        mdelay(100);
        printk("PID: %x\n",ssd192X_i2c_readb_without_ACK(&i2c,0x0a));


	//Mode
	ssd192X_i2c_writeb(&i2c, 0x12, OV7670_MODE);
//	ssd192X_i2c_writeb(&i2c, 0x12,0x11);
//	ssd192X_i2c_writeb(&i2c, 0x12,0x12);
//	ssd192X_i2c_writeb(&i2c, 0x12,0x05);
//	ssd192X_i2c_writeb(&i2c, 0x3b,0x80);
//	ssd192X_i2c_writeb(&i2c, 0x04,0x40);

//	ssd192X_i2c_writeb(&i2c, 0x70,0xca);

//	mdelay(100);
//	ssd192X_i2c_writeb(&i2c, 0x3a,0x10);
//	mdelay(100);
//	ssd192X_i2c_writeb(&i2c, 0x67,0xf0);
//	mdelay(100);
//	ssd192X_i2c_writeb(&i2c, 0x68,0xf0);

//	mdelay(100);
//	ssd192X_i2c_writeb(&i2c, 0x3d,0xa9);

//	mdelay(100);
//	ssd192X_i2c_writeb(&i2c, 0xc9,0x80);

        //YUV  11
//	ssd192X_i2c_writeb(&i2c, 0x3a,0x0c);
//	ssd192X_i2c_writeb(&i2c, 0x3d,0x9b);

        //YUV  10
	mdelay(100);
	ssd192X_i2c_writeb(&i2c, 0x3a,0x0c);
 	mdelay(100);
	ssd192X_i2c_writeb(&i2c, 0x3d,0x99);

        //YUV  01
//	ssd192X_i2c_writeb(&i2c, 0x3a,0x04);
//	ssd192X_i2c_writeb(&i2c, 0x3d,0x9b);

        //YUV  00
//	ssd192X_i2c_writeb(&i2c, 0x3a,0x04);
//	ssd192X_i2c_writeb(&i2c, 0x3d,0x99);


        //Scale
	mdelay(100);
	ssd192X_i2c_writeb(&i2c, 0x0c, 0x08);
	
	//Set YUV format
//	ssd192X_i2c_writeb(&i2c, 0x3a, 0x08);


}

void cam_hw_still(void)
{
#if 0
	I2C i2c;
	
	i2c.deviceID=I2C_DEVICE_ID;
	i2c.bitRate=1;
	ssd192X_i2c_init(&i2c);

	ssd192X_i2c_writew(&i2c, 0x0e, CAM_WIDTH);
	ssd192X_i2c_writew(&i2c, 0x0c, CAM_HEIGHT);

	//set window start position and size
	ssd192X_i2c_writew(&i2c, 0x08, 240);
	ssd192X_i2c_writew(&i2c, 0x0a, 180);
#endif

	// bt656 / field stuff select
#if 0
	printk("BT656 *********\n");
	SSD_REGWB(REG_DV_TV_0,0x02);
	SSD_REGWB(REG_DV_TV_1,0x0d);
	SSD_REGWB(REG_DV_TV_2,0x01);
#else
	printk("BT601 *********\n");
	SSD_REGWB(REG_DV_TV_0,0x12);
	SSD_REGWB(REG_DV_TV_1,0x00);
	SSD_REGWB(REG_DV_TV_2,0x04);
#endif
	
	SSD_REGWW(REG_DV_NFRAME_POS_0, 0x0002);
	SSD_REGWW(REG_DV_HORI_PERIOD_0, CAM_WIDTH);
	SSD_REGWB(REG_DV_FRAME_PULSE_WIDTH, 0x08);
}