tv8532.h

应用于linux系统的usb接口的摄像头驱动

/* 
 * Quickcam cameras initialization data
 *
 */

/*
   Initialization data: this is the first set-up data written to the
   device (before the open data).
 */
#define TESTCLK 0x10		// reg 0x2c -> 0x12 //10
#define TESTCOMP 0x90		// reg 0x28 -> 0x80
#define TESTLINE 0x81		// reg 0x29 -> 0x81
#define QCIFLINE 0x41		// reg 0x29 -> 0x81
#define TESTPTL 0x14		// reg 0x2D -> 0x14
#define TESTPTH 0x01		// reg 0x2E -> 0x01
#define TESTPTBL 0x12		// reg 0x2F -> 0x0a
#define TESTPTBH 0x01		// reg 0x30 -> 0x01
#define ADWIDTHL 0xe8		// reg 0x0c -> 0xe8
#define ADWIDTHH 0x03		// reg 0x0d -> 0x03
#define ADHEIGHL 0x90		// reg 0x0e -> 0x91 //93
#define ADHEIGHH 0x01		// reg 0x0f -> 0x01
#define EXPOL 0x8f		// reg 0x1c -> 0x8f
#define EXPOH 0x01		// reg 0x1d -> 0x01
#define ADCBEGINL 0x44		// reg 0x10 -> 0x46 //47
#define ADCBEGINH 0x00		// reg 0x11 -> 0x00
#define ADRBEGINL 0x0a		// reg 0x14 -> 0x0b //0x0c
#define ADRBEGINH 0x00		// reg 0x15 -> 0x00
#define TV8532_CMD_UPDATE 0x84

#define TV8532_EEprom_Add 0x03
#define TV8532_EEprom_DataL 0x04
#define TV8532_EEprom_DataM 0x05
#define TV8532_EEprom_DataH 0x06
#define TV8532_EEprom_TableLength 0x07
#define TV8532_EEprom_Write 0x08
#define TV8532_PART_CTRL 0x00
#define TV8532_CTRL 0x01
#define TV8532_CMD_EEprom_Open 0x30
#define TV8532_CMD_EEprom_Close 0x29
#define TV8532_UDP_UPDATE 0x31
#define TV8532_GPIO 0x39
#define TV8532_GPIO_OE 0x3B
#define TV8532_REQ_RegWrite 0x02
#define TV8532_REQ_RegRead 0x03

#define TV8532_ADWIDTH_L 0x0C
#define TV8532_ADWIDTH_H 0x0D
#define TV8532_ADHEIGHT_L 0x0E
#define TV8532_ADHEIGHT_H 0x0F
#define TV8532_EXPOSURE 0x1C
#define TV8532_QUANT_COMP 0x28
#define TV8532_MODE_PACKET 0x29
#define TV8532_SETCLK 0x2C
#define TV8532_POINT_L 0x2D
#define TV8532_POINT_H 0x2E
#define TV8532_POINTB_L 0x2F
#define TV8532_POINTB_H 0x30
#define TV8532_BUDGET_L 0x2A
#define TV8532_BUDGET_H 0x2B
#define TV8532_VID_L 0x34
#define TV8532_VID_H 0x35
#define TV8532_PID_L 0x36
#define TV8532_PID_H 0x37
#define TV8532_DeviceID 0x83
#define TV8532_AD_SLOPE 0x91
#define TV8532_AD_BITCTRL 0x94
#define TV8532_AD_COLBEGIN_L 0x10
#define TV8532_AD_COLBEGIN_H 0x11
#define TV8532_AD_ROWBEGIN_L 0x14
#define TV8532_AD_ROWBEGIN_H 0x15
/***************************************************************/

static void tv8532_initPictSetting(struct usb_spca50x *spca50x);
static __u16 tv8532_getbrightness(struct usb_spca50x *spca50x);
static __u16 tv8532_setbrightness(struct usb_spca50x *spca50x);
static __u16 tv8532_setcontrast(struct usb_spca50x *spca50x);
static void tv8532_configure(struct usb_spca50x *spca50x);
static int tv8532_init(struct usb_spca50x *spca50x);
static void tv8532_start(struct usb_spca50x *spca50x);
static void tv8532_stop(struct usb_spca50x *spca50x);
/****************************************************************/
static __u32 tv_8532_eeprom_data[] = {
/*add dataL dataM dataH */
    0x00010001, 0x01018011, 0x02050014, 0x0305001c,
    0x040d001e, 0x0505001f, 0x06050519, 0x0705011b,
    0x0805091e, 0x090d892e, 0x0a05892f, 0x0b050dd9,
    0x0c0509f1, 0
};

static void tv_8532WriteEEprom(struct usb_spca50x *spca50x)
{
    int i = 0;
    __u8 reg, data0, data1, data2, datacmd;
    struct usb_device *dev = spca50x->dev;

    datacmd = 0xb0;;
    spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_GPIO, &datacmd, 1);
    datacmd = TV8532_CMD_EEprom_Open;
    spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_CTRL, &datacmd, 1);
//wait_ms(1);
    while (tv_8532_eeprom_data[i]) {
	reg = (tv_8532_eeprom_data[i] & 0xFF000000) >> 24;
	spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_EEprom_Add,
			&reg, 1);
	//wait_ms(1);
	data0 = (tv_8532_eeprom_data[i] & 0x000000FF);
	spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_EEprom_DataL,
			&data0, 1);
	//wait_ms(1);
	data1 = (tv_8532_eeprom_data[i] & 0x0000FF00) >> 8;
	spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_EEprom_DataM,
			&data1, 1);
	//wait_ms(1);
	data2 = (tv_8532_eeprom_data[i] & 0x00FF0000) >> 16;
	spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_EEprom_DataH,
			&data2, 1);
	//wait_ms(1);
	datacmd = 0;
	spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_EEprom_Write,
			&datacmd, 1);
	//wait_ms(10);
	i++;
    }
    datacmd = i;
    spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_EEprom_TableLength,
		    &datacmd, 1);
//wait_ms(1); //udelay(1000);
    datacmd = TV8532_CMD_EEprom_Close;
    spca5xxRegWrite(dev, TV8532_REQ_RegWrite, 0, TV8532_CTRL, &datacmd, 1);
    wait_ms(10);
}

static void tv8532_initPictSetting(struct usb_spca50x *spca50x)
{
    /* set the initial value of brightness and contrast 
       on probe */
    spca50x->brightness = 0x018f << 7;
    spca50x->contrast = 0x80 << 8;
}

static __u16 tv8532_getbrightness(struct usb_spca50x *spca50x)
{
    return spca50x->brightness;
}

static __u16 tv8532_setbrightness(struct usb_spca50x *spca50x)
{
    __u8 value[2] = { 0xfc, 0x01 };
    __u8 data;
    int brightness = (spca50x->brightness >> 7);
    if (brightness > 0x01FF)
	brightness = 0x01FF;
    if (brightness < 1)
	brightness = 1;
    value[1] = ((brightness >> 8) & 0xff);
    value[0] = ((brightness) & 0xff);
    spca5xxRegWrite(spca50x->dev, TV8532_REQ_RegWrite, 0, TV8532_EXPOSURE, value, 2);	//1c
    data = TV8532_CMD_UPDATE;
    spca5xxRegWrite(spca50x->dev, TV8532_REQ_RegWrite, 0, TV8532_PART_CTRL,
		    &data, 1);
    return 0;
}
static __u16 tv8532_setcontrast(struct usb_spca50x *spca50x)
{
    return 0;
}

static void tv8532_configure(struct usb_spca50x *spca50x)
{
    tv_8532WriteEEprom(spca50x);
}


static void tv_8532ReadRegisters(struct usb_spca50x *spca50x)
{
    struct usb_device *dev = spca50x->dev;
    __u8 data = 0;
    //__u16 vid,pid;
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, 0x0001, &data, 1);
    PDEBUG(1, "register 0x01-> %x", data);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, 0x0002, &data, 1);
    PDEBUG(1, "register 0x02-> %x", data);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_ADWIDTH_L, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_ADWIDTH_H, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_QUANT_COMP, &data,
		   1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_MODE_PACKET, &data,
		   1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_SETCLK, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_POINT_L, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_POINT_H, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_POINTB_L, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_POINTB_H, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_BUDGET_L, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_BUDGET_H, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_VID_L, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_VID_H, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_PID_L, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_PID_H, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_DeviceID, &data, 1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_AD_COLBEGIN_L, &data,
		   1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_AD_COLBEGIN_H, &data,
		   1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_AD_ROWBEGIN_L, &data,
		   1);
    spca5xxRegRead(dev, TV8532_REQ_RegRead, 0, TV8532_AD_ROWBEGIN_H, &data,
		   1);
}

static void tv_8532_setReg(struct usb_spca50x *spca50x)
{
    struct usb_device *dev = spca50x->dev;
    __u8 data = 0;
    __u8 value[2] = { 0, 0 };

    data = ADCBEGINL;