xf86MonPtr
xf86DoEDID_DDC2(int scrnIndex, I2CBusPtr pBus)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
unsigned char *EDID_block = NULL;
unsigned char *VDIF_Block = NULL;
xf86MonPtr tmp = NULL;
/* Default DDC and DDC2 to enabled. */
Bool noddc = FALSE, noddc2 = FALSE;
OptionInfoPtr options;
options = xnfalloc(sizeof(DDCOptions));
(void)memcpy(options, DDCOptions, sizeof(DDCOptions));
xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);
xf86GetOptValBool(options, DDCOPT_NODDC, &noddc);
xf86GetOptValBool(options, DDCOPT_NODDC2, &noddc2);
xfree(options);
if (noddc || noddc2)
return NULL;
EDID_block = EDID1Read_DDC2(scrnIndex,pBus);
if (EDID_block){
tmp = xf86InterpretEDID(scrnIndex,EDID_block);
} else {
#ifdef DEBUG
ErrorF("No EDID block returned\n");
#endif
return NULL;
}
#ifdef DEBUG
if (!tmp)
ErrorF("Cannot interpret EDID block\n");
ErrorF("Sections to follow: %i\n",tmp->no_sections);
#endif
VDIF_Block =
VDIFRead(scrnIndex, pBus, EDID1_LEN * (tmp->no_sections + 1));
tmp->vdif = xf86InterpretVdif(VDIF_Block);
return tmp;
}
xf86MonPtr
xf86DoEDID_DDC2(int scrnIndex, I2CBusPtr pBus)
{
unsigned char *EDID_block = NULL;
xf86MonPtr tmp = NULL;
EDID_block = EDID1Read_DDC2(scrnIndex,pBus);
if (EDID_block){
tmp = xf86InterpretEDID(scrnIndex,EDID_block);
} else {
LOGV("No EDID block returned\n");
return NULL;
}
if (!tmp)
LOGV("Cannot interpret EDID block\n");
else
LOGV("Sections to follow: %d\n",tmp->no_sections);
return tmp;
}
