3  * Copyright 1998,1999 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE>
8  * can only do up to 128 bytes of EDID.  DDC2 is I2C-encapsulated and
14 #include <xorg-config.h>
35     {-1, NULL, OPTV_NONE, {0}, FALSE},
58     return -1;  in find_start()
127         ErrorF("DDC checksum not correct\n");  in DDC_checksum()
129         ErrorF("DDC read all Null\n");  in DDC_checksum()
148     if (s_start == -1)  in GetEDID_DDC1()
179 /* fetch entire EDID record; DDC bit needs to be masked */
195     } while (--count);  in FetchEDID_DDC1()
211     } while (count--);  in TestDDC1()
228         xf86DrvMsg(pScrn->scrnIndex, X_PROBED,  in EDIDRead_DDC1()
233     if (TestDDC1(pScrn, read_DDC) == -1) {  in EDIDRead_DDC1()
234         xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "No DDC signal\n");  in EDIDRead_DDC1()
242         count--;  in EDIDRead_DDC1()
255  * This function does not affect the list of modes used by drivers -- it is up
268     /* Default DDC and DDC1 to enabled. */  in xf86DoEDID_DDC1()
274     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);  in xf86DoEDID_DDC1()
288         tmp = xf86InterpretEDID(pScrn->scrnIndex, EDID_block);  in xf86DoEDID_DDC1()
308         dev->DevName = name;  in DDC2MakeDevice()
309         dev->SlaveAddr = address;  in DDC2MakeDevice()
310         dev->ByteTimeout = 2200;        /* VESA DDC spec 3 p. 43 (+10 %) */  in DDC2MakeDevice()
311         dev->StartTimeout = 550;  in DDC2MakeDevice()
312         dev->BitTimeout = 40;  in DDC2MakeDevice()
313         dev->AcknTimeout = 40;  in DDC2MakeDevice()
315         dev->pI2CBus = pBus;  in DDC2MakeDevice()
317             xf86DrvMsg(pBus->scrnIndex, X_PROBED, "No DDC2 device\n");  in DDC2MakeDevice()
334     pBus->RiseFallTime = 20;  in DDC2Init()
338         DDC2MakeDevice(pBus, 0x0060, "E-EDID segment register");  in DDC2Init()
364             if (!(seg = xf86I2CFindDev(dev->pI2CBus, 0x0060)))  in DDC2Read()
369             stop = dev->pI2CBus->I2CStop;  in DDC2Read()
370             dev->pI2CBus->I2CStop = EEDIDStop;  in DDC2Read()
374             dev->pI2CBus->I2CStop = stop;  in DDC2Read()
376                 dev->pI2CBus->I2CStop(dev);  in DDC2Read()
399  * This function does not affect the list of modes used by drivers -- it is up
412     /* Default DDC and DDC2 to enabled. */  in xf86DoEEDID()
420     xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);  in xf86DoEEDID()
446         tmp = xf86InterpretEEDID(pScrn->scrnIndex, EDID_block);  in xf86DoEEDID()
450         tmp->flags |= MONITOR_EDID_COMPLETE_RAWDATA;  in xf86DoEEDID()
460  * This function does not affect the list of modes used by drivers -- it is up