C++ (Cpp) xf86DestroyI2CDevRec Examples

Example #1

File: xf86DDC.c Project: dikerex/theqvd

static unsigned char *
DDCRead_DDC2(int scrnIndex, I2CBusPtr pBus, int start, int len)
{
    I2CDevPtr dev;
    unsigned char W_Buffer[2];
    int w_bytes;
    unsigned char *R_Buffer;
    int i;
    
    xf86LoaderReqSymLists(i2cSymbols, NULL);
    dev = xf86CreateI2CDevRec();
    dev->DevName = "ddc2";
    dev->SlaveAddr = 0xA0;
    dev->ByteTimeout = 2200; /* VESA DDC spec 3 p. 43 (+10 %) */
    dev->StartTimeout = 550;
    dev->BitTimeout = 40;
    dev->ByteTimeout = 40;
    dev->AcknTimeout = 40;

    dev->pI2CBus = pBus;
    if (! xf86I2CDevInit(dev)) {
	xf86DrvMsg(X_PROBED,scrnIndex,"No DDC2 device\n");
	return NULL;
    }
    if (start < 0x100) {
	w_bytes = 1;
	W_Buffer[0] = start;
    } else {
	w_bytes = 2;
	W_Buffer[0] = start & 0xFF;
	W_Buffer[1] = (start & 0xFF00) >> 8;
    }
    R_Buffer = xcalloc(1,sizeof(unsigned char) 
					* (len));
    for (i=0; i<RETRIES; i++) {
	if (xf86I2CWriteRead(dev, W_Buffer,w_bytes, R_Buffer,len)) {
	    if (!DDC_checksum(R_Buffer,len)) { 
		xf86DestroyI2CDevRec(dev,TRUE);
		return R_Buffer;
	    }
#ifdef DEBUG
	    else ErrorF("Checksum error in EDID block\n");
#endif
	}
#ifdef DEBUG
	else ErrorF("Error reading EDID block\n");
#endif
    }
    
    xf86DestroyI2CDevRec(dev,TRUE);
    xfree(R_Buffer);
    return NULL;
}

Example #2

File: xf86DDC.c Project: AustinSMU/osx86-driver-radeonhd

static unsigned char *
DDCRead_DDC2(int scrnIndex, I2CBusPtr pBus, int start, int len)
{
	static char name[5] = "ddc2";
    I2CDevPtr dev;
    unsigned char W_Buffer[2];
    int w_bytes;
    unsigned char *R_Buffer;
    int i;

    if (!(dev = xf86I2CFindDev(pBus, 0x00A0))) {
	dev = xf86CreateI2CDevRec();
	dev->DevName = name;
	dev->SlaveAddr = 0xA0;
	dev->ByteTimeout = 2200; /* VESA DDC spec 3 p. 43 (+10 %) */
	dev->StartTimeout = 550;
	dev->BitTimeout = 40;
	dev->ByteTimeout = 40;
	dev->AcknTimeout = 40;

	dev->pI2CBus = pBus;
	if (!xf86I2CDevInit(dev)) {
	    LOG("No DDC2 device\n");
	    return NULL;
	}
    }
    if (start < 0x100) {
	w_bytes = 1;
	W_Buffer[0] = start;
    } else {
	w_bytes = 2;
	W_Buffer[0] = start & 0xFF;
	W_Buffer[1] = (start & 0xFF00) >> 8;
    }
    R_Buffer = (unsigned char *)IOMalloc(sizeof(unsigned char) * len);
	if (!R_Buffer) return NULL;
	bzero(R_Buffer, sizeof(unsigned char) * len);
    for (i=0; i<RETRIES; i++) {
		if (xf86I2CWriteRead(dev, W_Buffer,w_bytes, R_Buffer,len)) {
			if (!DDC_checksum(R_Buffer,len))
				return R_Buffer;
			else LOGV("Checksum error in EDID block\n");
		}
		else LOGV("Error reading EDID block\n");
    }
    
    xf86DestroyI2CDevRec(dev,TRUE);
    IOFree(R_Buffer, sizeof(unsigned char) * len);
    return NULL;
}

Example #3

File: nvclock_i2c.cpp Project: alexandrezia/HWSensors

void nvclock_i2c_probe_device(I2CBusPtr bus, I2CSlaveAddr addr, const char *format, ...)
{
	I2CDevPtr dev;
	char *s;
	va_list ap;
    
	if(xf86I2CProbeAddress(bus, addr))
	{
		dev = xf86CreateI2CDevRec();
		s = (char*)IOMalloc(8);
		va_start (ap, format);
		vsnprintf (s, 7, format, ap);
		va_end (ap);
		dev->DevName = s;
		dev->SlaveAddr = addr;
		dev->pI2CBus = bus;
        
		if (!xf86I2CDevInit(dev))
		{
			IOFree(dev->DevName, 8);
			xf86DestroyI2CDevRec(dev, TRUE);
		}
	}
}

Example #4

File: via_vt162x.c Project: freedesktop-unofficial-mirror/openchrome__xf86-video-openchrome

I2CDevPtr
ViaVT162xDetect(ScrnInfoPtr pScrn, I2CBusPtr pBus, CARD8 Address)
{
    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
    I2CDevPtr pDev = xf86CreateI2CDevRec();
    CARD8 buf;

    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "ViaVT162xDetect\n"));

    pDev->DevName = "VT162x";
    pDev->SlaveAddr = Address;
    pDev->pI2CBus = pBus;

    if (!xf86I2CDevInit(pDev)) {
        xf86DestroyI2CDevRec(pDev, TRUE);
        return NULL;
    }

    if (!xf86I2CReadByte(pDev, 0x1B, &buf)) {
        xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
                   "Unable to read from %s Slave %d.\n",
                   pBus->BusName, Address);
        xf86DestroyI2CDevRec(pDev, TRUE);
        return NULL;
    }

    switch (buf) {
        case 0x02:
            xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
                       "Detected VIA Technologies VT1621 TV Encoder\n");
            pBIOSInfo->TVEncoder = VIA_VT1621;
            pDev->DevName = "VT1621";
            break;
        case 0x03:
            xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
                       "Detected VIA Technologies VT1622 TV Encoder\n");
            pBIOSInfo->TVEncoder = VIA_VT1622;
            pDev->DevName = "VT1622";
            break;
        case 0x10:
            xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
                       "Detected VIA Technologies VT1622A/VT1623 TV Encoder\n");
            pBIOSInfo->TVEncoder = VIA_VT1623;
            pDev->DevName = "VT1623";
            break;
        case 0x50:
            xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
                       "Detected VIA Technologies VT1625 TV Encoder\n");
            pBIOSInfo->TVEncoder = VIA_VT1625;
            pDev->DevName = "VT1625";
            break;
        default:
            pBIOSInfo->TVEncoder = VIA_NONETV;
            xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
                       "Unknown TV Encoder found at %s %X.\n",
                       pBus->BusName, Address);
            xf86DestroyI2CDevRec(pDev, TRUE);
            pDev = NULL;
            break;
    }

    return pDev;
}