pac7311.h

Linux下面摄像头最新源代码:支持200多中摄像头

    pac7311_reg_write(spca50x->dev, 0x15, 0x00);
    pac7311_reg_write(spca50x->dev, 0x16, 0x00);
    pac7311_reg_write(spca50x->dev, 0x17, 0x00);
    pac7311_reg_write(spca50x->dev, 0x18, 0x00);
    pac7311_reg_write(spca50x->dev, 0x19, 0x00);
    pac7311_reg_write(spca50x->dev, 0x1a, 0x00);
    pac7311_reg_write(spca50x->dev, 0x1b, 0x03);
    pac7311_reg_write(spca50x->dev, 0x1c, 0xa0);
    pac7311_reg_write(spca50x->dev, 0x1d, 0x01);
    pac7311_reg_write(spca50x->dev, 0x1e, 0xf4);
    pac7311_reg_write(spca50x->dev, 0x21, 0x00);
    pac7311_reg_write(spca50x->dev, 0x22, 0x08);
    pac7311_reg_write(spca50x->dev, 0x24, 0x03);
    pac7311_reg_write(spca50x->dev, 0x26, 0x00);
    pac7311_reg_write(spca50x->dev, 0x27, 0x01);
    pac7311_reg_write(spca50x->dev, 0x28, 0xca);
    pac7311_reg_write(spca50x->dev, 0x29, 0x10);
    pac7311_reg_write(spca50x->dev, 0x2a, 0x06);
    pac7311_reg_write(spca50x->dev, 0x2b, 0x78);
    pac7311_reg_write(spca50x->dev, 0x2c, 0x00);
    pac7311_reg_write(spca50x->dev, 0x2d, 0x00);
    pac7311_reg_write(spca50x->dev, 0x2e, 0x00);
    pac7311_reg_write(spca50x->dev, 0x2f, 0x00);
    pac7311_reg_write(spca50x->dev, 0x30, 0x23);
    pac7311_reg_write(spca50x->dev, 0x31, 0x28);
    pac7311_reg_write(spca50x->dev, 0x32, 0x04);
    pac7311_reg_write(spca50x->dev, 0x33, 0x11);
    pac7311_reg_write(spca50x->dev, 0x34, 0x00);
    pac7311_reg_write(spca50x->dev, 0x35, 0x00);
    pac7311_reg_write(spca50x->dev, 0x11, 0x01);

    pac7311_reg_write(spca50x->dev, 0xff, 0x01);
    pac7311_reg_write(spca50x->dev, 0x80, 0x10);
    pac7311_reg_write(spca50x->dev, 0x11, 0x01);	//load registers to sensor (Bit 0, auto clear)
    pac7311_reg_write(spca50x->dev, 0xff, 0x04);
    pac7311_reg_write(spca50x->dev, 0x0f, 0x10);
    pac7311_reg_write(spca50x->dev, 0x11, 0x01);	//load registers to sensor (Bit 0, auto clear)
    pac7311_reg_write(spca50x->dev, 0xff, 0x01);
    pac7311_reg_write(spca50x->dev, 0x10, 0x10);
    pac7311_reg_write(spca50x->dev, 0x11, 0x01);	//load registers to sensor (Bit 0, auto clear)

    //set correct resolution
    switch (mode) {
        case QCIF:
            pac7311_reg_write(spca50x->dev, 0xff, 0x04);
            pac7311_reg_write(spca50x->dev, 0x02, 0x03);
            pac7311_reg_write(spca50x->dev, 0xff, 0x01);
            pac7311_reg_write(spca50x->dev, 0x08, 0x09);
            pac7311_reg_write(spca50x->dev, 0x17, 0x20);
            pac7311_reg_write(spca50x->dev, 0x1b, 0x00);
            //pac7311_reg_write(spca50x->dev, 0x80, 0x69);
            pac7311_reg_write(spca50x->dev, 0x87, 0x10);
        break;
        case QSIF:
            pac7311_reg_write(spca50x->dev, 0xff, 0x04);
            pac7311_reg_write(spca50x->dev, 0x02, 0x03);
            pac7311_reg_write(spca50x->dev, 0xff, 0x01);
            pac7311_reg_write(spca50x->dev, 0x08, 0x09);
            pac7311_reg_write(spca50x->dev, 0x17, 0x30);
            //pac7311_reg_write(spca50x->dev, 0x80, 0x69);
            pac7311_reg_write(spca50x->dev, 0x87, 0x10);
        break;
        case QPAL:
            pac7311_reg_write(spca50x->dev, 0xff, 0x04);
            pac7311_reg_write(spca50x->dev, 0x02, 0x03);
            pac7311_reg_write(spca50x->dev, 0xff, 0x01);
            pac7311_reg_write(spca50x->dev, 0x08, 0x09);
            pac7311_reg_write(spca50x->dev, 0x17, 0x30);
            //pac7311_reg_write(spca50x->dev, 0x80, 0x69);
            pac7311_reg_write(spca50x->dev, 0x87, 0x10);
        break;
        case CIF:
            pac7311_reg_write(spca50x->dev, 0xff, 0x04);
            pac7311_reg_write(spca50x->dev, 0x02, 0x03);
            pac7311_reg_write(spca50x->dev, 0xff, 0x01);
            pac7311_reg_write(spca50x->dev, 0x08, 0x09);
            pac7311_reg_write(spca50x->dev, 0x17, 0x30);
            //pac7311_reg_write(spca50x->dev, 0x80, 0x3f);
            pac7311_reg_write(spca50x->dev, 0x87, 0x11);
        break;
        case SIF:
            pac7311_reg_write(spca50x->dev, 0xff, 0x04);
            pac7311_reg_write(spca50x->dev, 0x02, 0x03);
            pac7311_reg_write(spca50x->dev, 0xff, 0x01);
            pac7311_reg_write(spca50x->dev, 0x08, 0x08);
            pac7311_reg_write(spca50x->dev, 0x17, 0x00);
            //pac7311_reg_write(spca50x->dev, 0x80, 0x3f);
            pac7311_reg_write(spca50x->dev, 0x87, 0x11);
        break;
        case PAL:
            pac7311_reg_write(spca50x->dev, 0xff, 0x04);
            pac7311_reg_write(spca50x->dev, 0x02, 0x03);
            pac7311_reg_write(spca50x->dev, 0xff, 0x01);
            pac7311_reg_write(spca50x->dev, 0x08, 0x08);
            pac7311_reg_write(spca50x->dev, 0x17, 0x00);
            //pac7311_reg_write(spca50x->dev, 0x80, 0x3f);
            pac7311_reg_write(spca50x->dev, 0x87, 0x11);
        break;
        case VGA:
            pac7311_reg_write(spca50x->dev, 0xff, 0x04);
            pac7311_reg_write(spca50x->dev, 0x02, 0x03);
            pac7311_reg_write(spca50x->dev, 0xff, 0x01);
            pac7311_reg_write(spca50x->dev, 0x08, 0x08);
            pac7311_reg_write(spca50x->dev, 0x17, 0x00);
            //pac7311_reg_write(spca50x->dev, 0x80, 0x1c);
            pac7311_reg_write(spca50x->dev, 0x87, 0x12);
        break;
    }

    //start stream
    pac7311_reg_write(spca50x->dev, 0xff, 0x01);
    pac7311_reg_write(spca50x->dev, 0x78, 0x04);
    pac7311_reg_write(spca50x->dev, 0x78, 0x05);

    return;
}

static void pac7311_stopN(struct usb_spca50x *spca50x)
{
    pac7311_reg_write(spca50x->dev, 0xff, 0x04);
    pac7311_reg_write(spca50x->dev, 0x27, 0x80);
    pac7311_reg_write(spca50x->dev, 0x28, 0xca);
    pac7311_reg_write(spca50x->dev, 0x29, 0x53);
    pac7311_reg_write(spca50x->dev, 0x2a, 0x0e);
    pac7311_reg_write(spca50x->dev, 0xff, 0x01);
    pac7311_reg_write(spca50x->dev, 0x3e, 0x20);
    pac7311_reg_write(spca50x->dev, 0x78, 0x04);	//Bit_0=start stream, Bit_7=LED
    pac7311_reg_write(spca50x->dev, 0x78, 0x44);	//Bit_0=start stream, Bit_7=LED
    pac7311_reg_write(spca50x->dev, 0x78, 0x44);	//Bit_0=start stream, Bit_7=LED
    return;
}

static void pac7311_shutdown(struct usb_spca50x *spca50x)
{
    pac7311_reg_write(spca50x->dev, 0xff, 0x04);
    pac7311_reg_write(spca50x->dev, 0x27, 0x80);
    pac7311_reg_write(spca50x->dev, 0x28, 0xca);
    pac7311_reg_write(spca50x->dev, 0x29, 0x53);
    pac7311_reg_write(spca50x->dev, 0x2a, 0x0e);
    pac7311_reg_write(spca50x->dev, 0xff, 0x01);
    pac7311_reg_write(spca50x->dev, 0x3e, 0x20);
    pac7311_reg_write(spca50x->dev, 0x78, 0x04);	//Bit_0=start stream, Bit_7=LED
    pac7311_reg_write(spca50x->dev, 0x78, 0x44);	//Bit_0=start stream, Bit_7=LED
    pac7311_reg_write(spca50x->dev, 0x78, 0x44);	//Bit_0=start stream, Bit_7=LED
    return;
}

#ifdef GSPCA_ENABLE_REGISTERPLAY
static void pac7311_RegRead(struct usb_spca50x *spca50x)
{
    __u8 buffer;
    RegAddress = RegAddress & 0xff;
    pac7311_reg_read(spca50x->dev, RegAddress, &buffer);
    RegValue = buffer;
    PDEBUG(0, "pac7311_ReadReg, Reg 0x%02X value = %x", RegAddress, RegValue);
    return;
}

static void pac7311_RegWrite(struct usb_spca50x *spca50x)
{
    __u8 buffer;

    RegAddress = RegAddress & 0xff;
    buffer = RegValue & 0xff;
    pac7311_reg_write(spca50x->dev, RegAddress, buffer);
    PDEBUG(0, "pac7311_WriteReg,Reg 0x%02X value = %x", RegAddress, buffer);
    return;
}
#endif  /* GSPCA_ENABLE_REGISTERPLAY */
	
#define BLIMIT(bright) (__u8)((bright>0x1a)?0x1a:((bright < 4)? 4:bright))

static void pac7311_setAutobright(struct usb_spca50x *spca50x)
{
    unsigned long flags;
    __u8 luma = 0;
    __u8 luma_mean = 128;
    __u8 luma_delta = 20;
    __u8 spring = 5;
    __u8 Pxclk;
    int Gbright = 0;
    
    
    pac7311_reg_read(spca50x->dev, 0x02, &Pxclk);
    Gbright = Pxclk;
    spin_lock_irqsave(&spca50x->v4l_lock, flags);
    luma = spca50x->avg_lum;
    spin_unlock_irqrestore(&spca50x->v4l_lock, flags);
    
    PDEBUG(2, "Pac7311 lumamean %d", luma);
    if ((luma < (luma_mean - luma_delta)) ||
	(luma > (luma_mean + luma_delta))) {
	Gbright += ((luma_mean - luma) >> spring);
	Gbright = BLIMIT(Gbright);
	PDEBUG(2, "Pac7311 Gbright %d", Gbright);
	pac7311_reg_write(spca50x->dev, 0x0f,(__u8) Gbright);
	pac7311_reg_write(spca50x->dev, 0x11, 0x01);	//load registers to sensor (Bit 0, auto clear)
    }
    //PDEBUG(0, "Called pac7311_setAutobright: Not implemented yet");
}
#undef BLIMIT
static int pac7311_sofdetect(struct usb_spca50x *spca50x,struct spca50x_frame *frame, unsigned char *cdata,int *iPix, int seqnum, int *datalength)
{
		
		int sof = 0;
		int p = 0;
		if (*datalength < 6)
		//if (*datalength < 5)
		    return -1;
		else {
		    for (p = 0; p < *datalength - 6; p++) {
		    //for (p = 0; p < *datalength - 5; p++) {
			if ((cdata[0 + p] == 0xFF)
			    && (cdata[1 + p] == 0xFF)
			    && (cdata[2 + p] == 0x00)
			    && (cdata[3 + p] == 0xFF)
			    && (cdata[4 + p] == 0x96)
			    ) {
			    sof = 1;
                //if (p > 28) {
                //    PDEBUG(0, "0x%2X 0x%2X 0x%2X 0x%2X 0x%2X 0x%2X 0x%2X 0x%2X", cdata[p-28], cdata[p-27], cdata[p-26], cdata[p-25], cdata[p-24], cdata[p-23], cdata[p-22], cdata[p-21]);
                //}
			    break;
			}
		    }

		    if (sof) {
#if 1
		spin_lock(&spca50x->v4l_lock);
        if (p > 28) {
    		spca50x->avg_lum = cdata[p-23];
        }
		spin_unlock(&spca50x->v4l_lock);
		PDEBUG(5, "mean luma %d", spca50x->avg_lum);
#endif
			// copy the end of data to the current frame
			memcpy(frame->highwater, cdata, p);
			frame->highwater += p;
			//totlen += p;
			*iPix = p;	//copy to the nextframe start at p
			*datalength -= *iPix;
			PDEBUG(5,
			       "Pixartcam header packet found, %d datalength %d !!",
			       p, *datalength );
			return 0;
		    } else {
		    *iPix = 0;
			return (seqnum+1);
		    }

		}
}
#endif // pac7311USB_H