diff options
Diffstat (limited to 'src/aticlock.c')
| -rw-r--r-- | src/aticlock.c | 992 |
1 files changed, 8 insertions, 984 deletions
diff --git a/src/aticlock.c b/src/aticlock.c index 05c3a6d5..2aa65c48 100644 --- a/src/aticlock.c +++ b/src/aticlock.c @@ -21,157 +21,6 @@ */ /* - * Adapters prior to V5 use 4 crystals. Adapters V5 and later use a clock - * generator chip. V3 and V4 adapters differ when it comes to choosing clock - * frequencies. - * - * VGA Wonder V3/V4 Adapter Clock Frequencies - * R E G I S T E R S - * 1CE(*) 3C2 3C2 Frequency - * B2h/BEh - * Bit 6/4 Bit 3 Bit 2 (MHz) - * ------- ------- ------- ------- - * 0 0 0 50.000 - * 0 0 1 56.644 - * 0 1 0 Spare 1 - * 0 1 1 44.900 - * 1 0 0 44.900 - * 1 0 1 50.000 - * 1 1 0 Spare 2 - * 1 1 1 36.000 - * - * (*): V3 uses index B2h, bit 6; V4 uses index BEh, bit 4 - * - * V5, PLUS, XL and XL24 usually have an ATI 18810 clock generator chip, but - * some have an ATI 18811-0, and it's quite conceivable that some exist with - * ATI 18811-1's or ATI 18811-2's. Mach32 adapters are known to use any one of - * these clock generators. Mach32 adapters also use a different dot clock - * ordering. ATI says there is no reliable way for the driver to determine - * which clock generator is on the adapter, but this driver will do its best to - * do so anyway. - * - * VGA Wonder V5/PLUS/XL/XL24 Clock Frequencies - * R E G I S T E R S - * 1CE 1CE 3C2 3C2 Frequency - * B9h BEh (MHz) 18811-0 18811-1 - * Bit 1 Bit 4 Bit 3 Bit 2 18810 18812-0 18811-2 (*5) - * ------- ------- ------- ------- ------- ------- ------- ------- - * 0 0 0 0 30.240 30.240 135.000 75.000 - * 0 0 0 1 32.000 32.000 32.000 77.500 - * 0 0 1 0 37.500 110.000 110.000 80.000 - * 0 0 1 1 39.000 80.000 80.000 90.000 - * 0 1 0 0 42.954 42.954 100.000 25.175 - * 0 1 0 1 48.771 48.771 126.000 28.322 - * 0 1 1 0 (*1) 92.400 92.400 31.500 - * 0 1 1 1 36.000 36.000 36.000 36.000 - * 1 0 0 0 40.000 39.910 39.910 100.000 - * 1 0 0 1 (*4) 44.900 44.900 110.000 - * 1 0 1 0 75.000 75.000 75.000 126.000 - * 1 0 1 1 65.000 65.000 65.000 135.000 - * 1 1 0 0 50.350 50.350 50.350 40.000 - * 1 1 0 1 56.640 56.640 56.640 44.900 - * 1 1 1 0 (*2) (*3) (*3) 50.000 - * 1 1 1 1 44.900 44.900 44.900 65.000 - * - * (*1) External 0 (supposedly 16.657 Mhz) - * (*2) External 1 (supposedly 28.322 MHz) - * (*3) This setting doesn't seem to generate anything - * (*4) This setting is documented to be 56.644 MHz, but something close to 82 - * MHz has also been encountered. - * (*5) This setting is for Dell OmniPlex 590 systems, with a 68800AX on the - * motherboard, along with an AT&T21C498 DAC (which is reported as an - * STG1700) and ICS2494AM clock generator (a.k.a. ATI 18811-?). - * - * Mach32 Clock Frequencies - * R E G I S T E R S - * 1CE 1CE 3C2 3C2 Frequency - * B9h BEh (MHz) 18811-0 18811-1 - * Bit 1 Bit 4 Bit 3 Bit 2 18810 18812-0 18811-2 (*5) - * ------- ------- ------- ------- ------- ------- ------- ------- - * 0 0 0 0 42.954 42.954 100.000 25.175 - * 0 0 0 1 48.771 48.771 126.000 28.322 - * 0 0 1 0 (*1) 92.400 92.400 31.500 - * 0 0 1 1 36.000 36.000 36.000 36.000 - * 0 1 0 0 30.240 30.240 135.000 75.000 - * 0 1 0 1 32.000 32.000 32.000 77.500 - * 0 1 1 0 37.500 110.000 110.000 80.000 - * 0 1 1 1 39.000 80.000 80.000 90.000 - * 1 0 0 0 50.350 50.350 50.350 40.000 - * 1 0 0 1 56.640 56.640 56.640 44.900 - * 1 0 1 0 (*2) (*3) (*3) 50.000 - * 1 0 1 1 44.900 44.900 44.900 65.000 - * 1 1 0 0 40.000 39.910 39.910 100.000 - * 1 1 0 1 (*4) 44.900 44.900 110.000 - * 1 1 1 0 75.000 75.000 75.000 126.000 - * 1 1 1 1 65.000 65.000 65.000 135.000 - * - * (*1) External 0 (supposedly 16.657 Mhz) - * (*2) External 1 (supposedly 28.322 MHz) - * (*3) This setting doesn't seem to generate anything - * (*4) This setting is documented to be 56.644 MHz, but something close to 82 - * MHz has also been encountered. - * (*5) This setting is for Dell OmniPlex 590 systems, with a 68800AX on the - * motherboard, along with an AT&T21C498 DAC (which is reported as an - * STG1700) and ICS2494AM clock generator (a.k.a. ATI 18811-?). - * - * Note that, to reduce confusion, this driver masks out the different clock - * ordering. - * - * For all adapters, these frequencies can be divided by 1 or 2. For all - * adapters, except Mach32's and Mach64's, frequencies can also be divided by 3 - * or 4. - * - * Register 1CE, index B8h - * Bit 7 Bit 6 - * ------- ------- - * 0 0 Divide by 1 - * 0 1 Divide by 2 - * 1 0 Divide by 3 - * 1 1 Divide by 4 - * - * With respect to clocks, Mach64's are entirely different animals. - * - * The oldest Mach64's use one of the non-programmable clock generators - * described above. In this case, the driver will handle clocks in much the - * same way as it would for a Mach32. - * - * All other Mach64 adapters use a programmable clock generator. BIOS - * initialisation programmes an initial set of frequencies. Two of these are - * reserved to allow for the setting of modes that do not use a frequency from - * this initial set. One of these reserved slots is used by the BIOS mode set - * routine, the other by the particular accelerated driver used (MS-Windows, - * AutoCAD, etc.). The slots reserved in this way are dependent on the - * particular clock generator used by the adapter. - * - * If the driver does not support the adapter's clock generator, it will try to - * match the (probed or specified) clocks to one of the following sets. - * - * Mach64 Clock Frequencies for unsupported programmable clock generators - * R E G I S T E R S - * 1CE 1CE 3C2 3C2 Frequency - * B9h BEh (MHz) - * Bit 1 Bit 4 Bit 3 Bit 2 Set 1 Set 2 Set 3 - * ------- ------- ------- ------- ------- ------- ------- - * 0 0 0 0 50.350 25.180 25.180 - * 0 0 0 1 56.640 28.320 28.320 - * 0 0 1 0 63.000 31.500 0.000 - * 0 0 1 1 72.000 36.000 0.000 - * 0 1 0 0 0.000 0.000 0.000 - * 0 1 0 1 110.000 110.000 0.000 - * 0 1 1 0 126.000 126.000 0.000 - * 0 1 1 1 135.000 135.000 0.000 - * 1 0 0 0 40.000 40.000 0.000 - * 1 0 0 1 44.900 44.900 0.000 - * 1 0 1 0 49.500 49.500 0.000 - * 1 0 1 1 50.000 50.000 0.000 - * 1 1 0 0 0.000 0.000 0.000 - * 1 1 0 1 80.000 80.000 0.000 - * 1 1 1 0 75.000 75.000 0.000 - * 1 1 1 1 65.000 65.000 0.000 - * - * The driver will never select a setting of 0.000 MHz. The above comments on - * clock ordering and clock divider apply here also. - * * For all supported programmable clock generators, the driver will ignore any * XF86Config clock line and programme, as needed, the clock number reserved by * the BIOS for accelerated drivers. The driver's mode initialisation routine @@ -205,23 +54,6 @@ #include "atiwonderio.h" /* - * Definitions related to non-programmable clock generators. - */ -const char *ATIClockNames[] = -{ - "unknown", - "IBM VGA compatible", - "crystals", - "ATI 18810 or similar", - "ATI 18811-0 or similar", - "ATI 18811-1 or similar", - "ICS 2494-AM or similar", - "Programmable (BIOS setting 1)", - "Programmable (BIOS setting 2)", - "Programmable (BIOS setting 3)" -}; - -/* * Definitions related to programmable clock generators. */ static CARD16 ATIPostDividers[] = {1, 2, 4, 8, 16, 32, 64, 128}, @@ -273,239 +105,6 @@ ClockRec ATIClockDescriptors[] = }; /* - * XF86Config clocks line that start with the following will either be rejected - * for ATI adapters, or accepted for non-ATI adapters. - */ -static const int -ATIVGAClocks[] = -{ - 25175, 28322, - -1 -}; - -/* - * The driver will attempt to match fixed clocks to one of the following - * specifications. - */ -static const int -ATICrystalFrequencies[] = -{ - 50000, 56644, 0, 44900, 44900, 50000, 0, 36000, - -1 -}, -ATI18810Frequencies[] = -{ - 30240, 32000, 37500, 39000, 42954, 48771, 0, 36000, - 40000, 0, 75000, 65000, 50350, 56640, 0, 44900 -}, -ATI188110Frequencies[] = -{ - 30240, 32000, 110000, 80000, 42954, 48771, 92400, 36000, - 39910, 44900, 75000, 65000, 50350, 56640, 0, 44900 -}, -ATI188111Frequencies[] = -{ - 135000, 32000, 110000, 80000, 100000, 126000, 92400, 36000, - 39910, 44900, 75000, 65000, 50350, 56640, 0, 44900 -}, -ATI2494AMFrequencies[] = -{ - 75000, 77500, 80000, 90000, 25175, 28322, 31500, 36000, - 100000, 110000, 126000, 135000, 40000, 44900, 50000, 65000 -}, -ATIMach64AFrequencies[] = -{ - 0, 110000, 126000, 135000, 50350, 56640, 63000, 72000, - 0, 80000, 75000, 65000, 40000, 44900, 49500, 50000 -}, -ATIMach64BFrequencies[] = -{ - 0, 110000, 126000, 135000, 25180, 28320, 31500, 36000, - 0, 80000, 75000, 65000, 40000, 44900, 49500, 50000 -}, -ATIMach64CFrequencies[] = -{ - 0, 0, 0, 0, 25180, 28320, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0 -}, -*SpecificationClockLine[] = -{ - NULL, - ATIVGAClocks, - ATICrystalFrequencies, - ATI18810Frequencies, - ATI188110Frequencies, - ATI188111Frequencies, - ATI2494AMFrequencies, - ATIMach64AFrequencies, - ATIMach64BFrequencies, - ATIMach64CFrequencies, - NULL -}; - -/* - * The driver will reject XF86Config clocks lines that start with, or are an - * initial subset of, one of the following. - */ -static const int -ATIPre_2_1_1_Clocks_A[] = /* Based on 18810 */ -{ - 18000, 22450, 25175, 28320, 36000, 44900, 50350, 56640, - 30240, 32000, 37500, 39000, 40000, 0, 75000, 65000, - -1 -}, -ATIPre_2_1_1_Clocks_B[] = /* Based on 18811-0 */ -{ - 18000, 22450, 25175, 28320, 36000, 44900, 50350, 56640, - 30240, 32000, 110000, 80000, 39910, 44900, 75000, 65000, - -1 -}, -ATIPre_2_1_1_Clocks_C[] = /* Based on 18811-1 (or -2) */ -{ - 18000, 22450, 25175, 28320, 36000, 44900, 50350, 56640, - 135000, 32000, 110000, 80000, 39910, 44900, 75000, 65000, - -1 -}, -ATIPre_2_1_1_Clocks_D[] = /* Based on ICS 2494AM */ -{ - 18000, 32500, 20000, 22450, 36000, 65000, 40000, 44900, - 75000, 77500, 80000, 90000, 100000, 110000, 126000, 135000, - -1 -}, -ATIPre_2_1_1_Clocks_E[] = /* Based on programmable setting 1 */ -{ - 36000, 25000, 20000, 22450, 72000, 50000, 40000, 44900, - 0, 110000, 126000, 135000, 0, 80000, 75000, 65000, - -1 -}, -ATIPre_2_1_1_Clocks_F[] = /* Based on programmable setting 2 */ -{ - 18000, 25000, 20000, 22450, 36000, 50000, 40000, 44900, - 0, 110000, 126000, 135000, 0, 80000, 75000, 65000, - -1 -}, -*InvalidClockLine[] = -{ - NULL, - ATIVGAClocks, - ATIPre_2_1_1_Clocks_A, - ATIPre_2_1_1_Clocks_B, - ATIPre_2_1_1_Clocks_C, - ATIPre_2_1_1_Clocks_D, - ATIPre_2_1_1_Clocks_E, - ATIPre_2_1_1_Clocks_F, - NULL -}; - -/* - * Clock maps. - */ -static const CARD8 ClockMaps[][4] = -{ - /* Null map */ - { 0, 1, 2, 3}, - /* VGA Wonder map <-> Mach{8,32,64} */ - { 1, 0, 3, 2}, - /* VGA Wonder map <-> Accelerator */ - { 0, 2, 1, 3}, - /* VGA -> Accelerator map */ - { 2, 0, 3, 1}, - /* Accelerator -> VGA map */ - { 1, 3, 0, 2} -}; -#define ATIVGAWonderClockMap ClockMaps[0] -#define ATIVGAWonderClockUnmap ATIVGAWonderClockMap -#define ATIMachVGAClockMap ClockMaps[1] -#define ATIMachVGAClockUnmap ATIMachVGAClockMap -#define ATIVGAProgrammableClockMap ClockMaps[2] -#define ATIVGAProgrammableClockUnmap ATIVGAProgrammableClockMap -#define ATIAcceleratorClockMap ClockMaps[3] -#define ATIAcceleratorClockUnmap ClockMaps[4] -#define ATIProgrammableClockMap ClockMaps[0] -#define ATIProgrammableClockUnmap ATIProgrammableClockMap -#define MapClockIndex(_ClockMap, _Index) \ - (SetBits((_ClockMap)[GetBits(_Index, 0x0CU)], 0x0CU) | \ - ((_Index) & ~0x0CU)) - -/* - * ATIMatchClockLine -- - * - * This function tries to match the XF86Config clocks to one of an array of - * clock lines. It returns a clock line number or 0. - */ -static int -ATIMatchClockLine -( - ScrnInfoPtr pScreenInfo, - ATIPtr pATI, - const int **ClockLine, - const unsigned short int NumberOfClocks, - const int CalibrationClockNumber, - const int ClockMap -) -{ - int ClockChip = 0, ClockChipIndex = 0; - int NumberOfMatchingClocks = 0; - int MinimumGap = CLOCK_TOLERANCE + 1; - - /* For ATI adapters, reject generic VGA clocks */ - { - if (ClockLine == SpecificationClockLine) - ClockChipIndex++; - } - - /* If checking for XF86Config clock order, skip crystals */ - if (ClockMap) - ClockChipIndex++; - - for (; ClockLine[++ClockChipIndex]; ) - { - int MaximumGap = 0, ClockCount = 0, ClockIndex = 0; - - for (; ClockIndex < NumberOfClocks; ClockIndex++) - { - int Gap, XF86ConfigClock, SpecificationClock; - - SpecificationClock = ClockLine[ClockChipIndex] - [MapClockIndex(ClockMaps[ClockMap], ClockIndex)]; - if (SpecificationClock < 0) - break; - if (!SpecificationClock) - continue; - - XF86ConfigClock = pScreenInfo->clock[ClockIndex]; - if (!XF86ConfigClock) - continue; - - Gap = abs(XF86ConfigClock - SpecificationClock); - if (Gap >= MinimumGap) - goto SkipThisClockGenerator; - if (!Gap) - { - if (ClockIndex == CalibrationClockNumber) - continue; - } - else if (Gap > MaximumGap) - { - MaximumGap = Gap; - } - ClockCount++; - } - - if (ClockCount <= NumberOfMatchingClocks) - continue; - NumberOfMatchingClocks = ClockCount; - ClockChip = ClockChipIndex; - if (!(MinimumGap = MaximumGap)) - break; - -SkipThisClockGenerator:; - } - - return ClockChip; -} - -/* * ATIClockPreInit -- * * This function is called by ATIPreInit() and handles the XF86Config clocks @@ -515,60 +114,16 @@ void ATIClockPreInit ( ScrnInfoPtr pScreenInfo, - ATIPtr pATI, - GDevPtr pGDev, - ClockRangePtr pRange + ATIPtr pATI ) { - double ScaleFactor; - unsigned short int NumberOfUndividedClocks; - unsigned short int NumberOfDividers, NumberOfClocks; - int CalibrationClockNumber, CalibrationClockValue; - int ClockIndex, SpecificationClock, ClockMap = 0, Index; - CARD8 CanDisableInterrupts; - -#ifndef AVOID_CPIO - - CARD8 genmo; - -#endif /* AVOID_CPIO */ - - /* - * Decide what to do about the XF86Config clocks for programmable clock - * generators. - */ - if (pATI->ProgrammableClock != ATI_CLOCK_FIXED) - { - /* Check for those that are not (yet) handled */ - if ((pATI->ProgrammableClock == ATI_CLOCK_UNKNOWN) || - (pATI->ProgrammableClock > NumberOf(ATIClockDescriptors))) - { - xf86DrvMsgVerb(pScreenInfo->scrnIndex, X_WARNING, 0, - "Unknown programmable clock generator type (0x%02X)" - " detected.\n", pATI->ProgrammableClock); - } - else if (pATI->ClockDescriptor.MaxN <= 0) - { - xf86DrvMsgVerb(pScreenInfo->scrnIndex, X_WARNING, 0, - "Unsupported programmable clock generator detected: %s.\n", - pATI->ClockDescriptor.ClockName); - } - else - { /* * Recognise supported clock generators. This involves telling the * rest of the server about it and (re-)initializing the XF86Config * clocks line. */ - pRange->clockIndex = -1; pScreenInfo->progClock = TRUE; - /* Set internal clock ordering */ - { - pATI->NewHW.ClockMap = ATIProgrammableClockMap; - pATI->NewHW.ClockUnmap = ATIProgrammableClockUnmap; - } - xf86DrvMsg(pScreenInfo->scrnIndex, X_PROBED, "%s programmable clock generator detected.\n", pATI->ClockDescriptor.ClockName); @@ -584,11 +139,6 @@ ATIClockPreInit (double)pATI->ReferenceNumerator / ((double)pATI->ReferenceDenominator * 1000.0)); - /* Clobber XF86Config clocks line */ - if (pGDev->numclocks) - xf86DrvMsg(pScreenInfo->scrnIndex, X_NOTICE, - "XF86Config clocks specification ignored.\n"); - if (pATI->ProgrammableClock == ATI_CLOCK_CH8398) { /* First two are fixed */ pScreenInfo->numClocks = 2; @@ -603,531 +153,6 @@ ATIClockPreInit */ pATI->ReferenceNumerator <<= 1; } - - return; /* ... to ATIPreInit() */ - } - } - -#ifndef AVOID_CPIO - - /* Set default clock maps */ - pATI->NewHW.ClockMap = ATIVGAWonderClockMap; - pATI->NewHW.ClockUnmap = ATIVGAWonderClockUnmap; - -#endif /* AVOID_CPIO */ - - /* - * Determine the number of clock values the adapter should be able to - * generate and the dot clock to use for probe calibration. - */ -ProbeClocks: - - { - if (pATI->Chip >= ATI_CHIP_264CT) - { - NumberOfDividers = 1; - NumberOfUndividedClocks = 4; - CalibrationClockNumber = 1; - CalibrationClockValue = 28322; - } - else - { - NumberOfDividers = 2; - NumberOfUndividedClocks = 16; - CalibrationClockNumber = 10 /* or 11 */; - CalibrationClockValue = 75000 /* or 65000 */; - } - - /* - * When selecting clocks, all ATI accelerators use a different - * clock ordering. - */ - { - pATI->NewHW.ClockMap = ATIAcceleratorClockMap; - pATI->NewHW.ClockUnmap = ATIAcceleratorClockUnmap; - } - } - - pATI->OldHW.ClockMap = pATI->NewHW.ClockMap; - pATI->OldHW.ClockUnmap = pATI->NewHW.ClockUnmap; - - NumberOfClocks = NumberOfUndividedClocks * NumberOfDividers; - - /* - * Respect any XF86Config clocks line. Well, that's the theory, anyway. - * In practice, however, the regular use of probed values is widespread, at - * times causing otherwise inexplicable results. So, attempt to normalise - * the clocks to known (i.e. specification) values. - */ - if (!pGDev->numclocks || pATI->OptionProbeClocks || - xf86ServerIsOnlyProbing()) - { - if (pATI->ProgrammableClock != ATI_CLOCK_FIXED) - { - /* - * For unsupported programmable clock generators, pick the highest - * frequency set by BIOS initialisation for clock calibration. - */ - CalibrationClockNumber = CalibrationClockValue = 0; - for (ClockIndex = 0; - ClockIndex < NumberOfUndividedClocks; - ClockIndex++) - { - if (CalibrationClockValue < pATI->BIOSClocks[ClockIndex]) - { - CalibrationClockNumber = ClockIndex; - CalibrationClockValue = pATI->BIOSClocks[ClockIndex]; - } - } - CalibrationClockNumber = - MapClockIndex(pATI->NewHW.ClockUnmap, CalibrationClockNumber); - CalibrationClockValue *= 10; - } - -#ifndef AVOID_CPIO - - if (pATI->VGAAdapter) - { - /* - * The current video state needs to be saved before the clock - * probe, and restored after. Video memory corruption and other - * effects occur because, at this early stage, the clock probe - * cannot reliably be prevented from enabling frequencies that are - * greater than what the adapter can handle. - */ - ATIModeSave(pScreenInfo, pATI, &pATI->OldHW); - - /* Ensure clock select pins are not OR'ed with anything */ - if (pATI->CPIO_VGAWonder && (pATI->OldHW.crtc == ATI_CRTC_VGA)) - ATIModifyExtReg(pATI, 0xB5U, pATI->OldHW.b5, 0x7FU, 0x00U); - } - -#endif /* AVOID_CPIO */ - - /* - * Probe the adapter for clock values. The following is essentially - * the common layer's xf86GetClocks() reworked to fit. One difference - * is the ability to monitor a VSync bit in MMIO space. - */ - CanDisableInterrupts = TRUE; /* An assumption verified below */ - - for (ClockIndex = 0; ClockIndex < NumberOfClocks; ClockIndex++) - { - pScreenInfo->clock[ClockIndex] = 0; - - /* Remap clock number */ - Index = MapClockIndex(pATI->OldHW.ClockMap, ClockIndex); - - /* Select the clock */ - switch (pATI->OldHW.crtc) - { - -#ifndef AVOID_CPIO - - case ATI_CRTC_VGA: - /* Get generic two low-order bits */ - genmo = (inb(R_GENMO) & 0xF3U) | ((Index << 2) & 0x0CU); - - if (pATI->CPIO_VGAWonder) - { - /* Start sequencer reset */ - PutReg(SEQX, 0x00U, 0x00U); - - { - ATIModifyExtReg(pATI, 0xBEU, -1, 0xEFU, - Index << 2); - { - Index >>= 1; - ATIModifyExtReg(pATI, 0xB9U, -1, 0xFDU, - Index >> 1); - } - } - - /* Set clock divider bits */ - ATIModifyExtReg(pATI, 0xB8U, -1, 0x00U, - (Index << 3) & 0xC0U); - } - else - { - /* - * Reject clocks that cannot be selected. - */ - if (Index & ~0x03U) - continue; - - /* Start sequencer reset */ - PutReg(SEQX, 0x00U, 0x00U); - } - - /* Must set miscellaneous output register last */ - outb(GENMO, genmo); - - /* End sequencer reset */ - PutReg(SEQX, 0x00U, 0x03U); - - break; - -#endif /* AVOID_CPIO */ - - case ATI_CRTC_MACH64: - out8(CLOCK_CNTL, CLOCK_STROBE | - SetBits(Index, CLOCK_SELECT | CLOCK_DIVIDER)); - break; - - default: - continue; - } - - usleep(50000); /* Let clock stabilise */ - - xf86SetPriority(TRUE); - - /* Try to disable interrupts */ - if (CanDisableInterrupts && !xf86DisableInterrupts()) - { - xf86DrvMsg(pScreenInfo->scrnIndex, X_WARNING, - "Unable to disable interrupts; Clock probe will not be as" - " accurate.\n"); - CanDisableInterrupts = FALSE; - } - - /* - * Generate a count while monitoring the vertical sync or blanking - * pulse. This is dependent on the CRTC used by the mode on server - * entry. - */ - switch (pATI->OldHW.crtc) - { - -#ifndef AVOID_CPIO - - case ATI_CRTC_VGA: - /* Verify vertical sync pulses are in fact occurring */ - Index = 1 << 19; - while (!(inb(GENS1(pATI->CPIO_VGABase)) & 0x08U)) - if (Index-- <= 0) - goto EnableInterrupts; - Index = 1 << 19; - while (inb(GENS1(pATI->CPIO_VGABase)) & 0x08U) - if (Index-- <= 0) - goto EnableInterrupts; - Index = 1 << 19; - while (!(inb(GENS1(pATI->CPIO_VGABase)) & 0x08U)) - if (Index-- <= 0) - goto EnableInterrupts; - - /* Generate the count */ - for (Index = 0; Index < 8; Index++) - { - while (inb(GENS1(pATI->CPIO_VGABase)) & 0x08U) - pScreenInfo->clock[ClockIndex]++; - while (!(inb(GENS1(pATI->CPIO_VGABase)) & 0x08U)) - pScreenInfo->clock[ClockIndex]++; - } - break; - -#endif /* AVOID_CPIO */ - - case ATI_CRTC_MACH64: - /* Verify vertical blanking pulses are in fact occurring */ - Index = 1 << 19; - while (!(inr(CRTC_INT_CNTL) & CRTC_VBLANK)) - if (Index-- <= 0) - goto EnableInterrupts; - Index = 1 << 19; - while (inr(CRTC_INT_CNTL) & CRTC_VBLANK) - if (Index-- <= 0) - goto EnableInterrupts; - Index = 1 << 19; - while (!(inr(CRTC_INT_CNTL) & CRTC_VBLANK)) - if (Index-- <= 0) - goto EnableInterrupts; - - /* Generate the count */ - for (Index = 0; Index < 4; Index++) - { - while (inr(CRTC_INT_CNTL) & CRTC_VBLANK) - pScreenInfo->clock[ClockIndex]++; - while (!(inr(CRTC_INT_CNTL) & CRTC_VBLANK)) - pScreenInfo->clock[ClockIndex]++; - } - break; - - default: - break; - } - - EnableInterrupts: - if (CanDisableInterrupts) - xf86EnableInterrupts(); - - xf86SetPriority(FALSE); - } - - ScaleFactor = (double)CalibrationClockValue * - (double)pScreenInfo->clock[CalibrationClockNumber]; - - /* Scale the clocks from counts to kHz */ - for (ClockIndex = 0; ClockIndex < NumberOfClocks; ClockIndex++) - { - if (ClockIndex == CalibrationClockNumber) - pScreenInfo->clock[ClockIndex] = CalibrationClockValue; - else if (pScreenInfo->clock[ClockIndex]) - /* Round to the nearest 10 kHz */ - pScreenInfo->clock[ClockIndex] = - (int)(((ScaleFactor / - (double)pScreenInfo->clock[ClockIndex]) + - 5) / 10) * 10; - } - - pScreenInfo->numClocks = NumberOfClocks; - -#ifndef AVOID_CPIO - - if (pATI->VGAAdapter) - { - /* Restore video state */ - ATIModeSet(pScreenInfo, pATI, &pATI->OldHW); - xfree(pATI->OldHW.frame_buffer); - pATI->OldHW.frame_buffer = NULL; - } - -#endif /* AVOID_CPIO */ - - /* Tell user clocks were probed, instead of supplied */ - pATI->OptionProbeClocks = TRUE; - - /* Attempt to match probed clocks to a known specification */ - pATI->Clock = ATIMatchClockLine(pScreenInfo, pATI, - SpecificationClockLine, NumberOfUndividedClocks, - CalibrationClockNumber, 0); - - { - /* All others don't have crystals */ - if (pATI->Clock == ATI_CLOCK_CRYSTALS) - pATI->Clock = ATI_CLOCK_NONE; - } - } - else - { - /* - * Allow for an initial subset of specification clocks. Can't allow - * for any more than that though... - */ - if (NumberOfClocks > pGDev->numclocks) - { - NumberOfClocks = pGDev->numclocks; - if (NumberOfUndividedClocks > NumberOfClocks) - NumberOfUndividedClocks = NumberOfClocks; - } - - /* Move XF86Config clocks into the ScrnInfoRec */ - for (ClockIndex = 0; ClockIndex < NumberOfClocks; ClockIndex++) - pScreenInfo->clock[ClockIndex] = pGDev->clock[ClockIndex]; - pScreenInfo->numClocks = NumberOfClocks; - - /* Attempt to match clocks to a known specification */ - pATI->Clock = ATIMatchClockLine(pScreenInfo, pATI, - SpecificationClockLine, NumberOfUndividedClocks, -1, 0); - - { - if (pATI->Clock == ATI_CLOCK_NONE) - { - /* - * Reject certain clock lines that are obviously wrong. This - * includes the standard VGA clocks for ATI adapters, and clock - * lines that could have been used with the pre-2.1.1 driver. - */ - if (ATIMatchClockLine(pScreenInfo, pATI, InvalidClockLine, - NumberOfClocks, -1, 0)) - { - pATI->OptionProbeClocks = TRUE; - } - else - { - /* - * Check for clocks that are specified in the wrong order. - * This is meant to catch those who are trying to use the - * clock order intended for the old accelerated servers. - */ - while ((++ClockMap, ClockMap %= NumberOf(ClockMaps))) - { - pATI->Clock = ATIMatchClockLine(pScreenInfo, pATI, - SpecificationClockLine, NumberOfUndividedClocks, - -1, ClockMap); - if (pATI->Clock != ATI_CLOCK_NONE) - { - xf86DrvMsgVerb(pScreenInfo->scrnIndex, - X_WARNING, 0, - "XF86Config clock ordering incorrect. Clocks" - " will be reordered.\n"); - break; - } - } - } - } - else - /* Ensure crystals are not matched to clock chips, and vice versa */ - { - if (pATI->Clock == ATI_CLOCK_CRYSTALS) - pATI->OptionProbeClocks = TRUE; - } - - if (pATI->OptionProbeClocks) - { - xf86DrvMsgVerb(pScreenInfo->scrnIndex, X_WARNING, 0, - "Invalid or obsolete XF86Config clocks line rejected.\n" - " Clocks will be probed.\n"); - goto ProbeClocks; - } - } - } - - if (pATI->ProgrammableClock != ATI_CLOCK_FIXED) - { - pATI->ProgrammableClock = ATI_CLOCK_FIXED; - } - else if (pATI->Clock == ATI_CLOCK_NONE) - { - xf86DrvMsgVerb(pScreenInfo->scrnIndex, X_WARNING, 0, - "Unknown clock generator detected.\n"); - } - else - -#ifndef AVOID_CPIO - - if (pATI->Clock == ATI_CLOCK_CRYSTALS) - { - xf86DrvMsg(pScreenInfo->scrnIndex, X_PROBED, - "This adapter uses crystals to generate clock frequencies.\n"); - } - else if (pATI->Clock != ATI_CLOCK_VGA) - -#endif /* AVOID_CPIO */ - - { - xf86DrvMsg(pScreenInfo->scrnIndex, X_PROBED, - "%s clock chip detected.\n", ATIClockNames[pATI->Clock]); - } - - if (pATI->Clock != ATI_CLOCK_NONE) - { - /* Replace undivided clocks with specification values */ - for (ClockIndex = 0; - ClockIndex < NumberOfUndividedClocks; - ClockIndex++) - { - /* - * Don't replace clocks that are probed, documented, or set by the - * user to zero. One exception is that we need to override the - * user's value for the spare settings on a crystal-based adapter. - * Another exception is when the user specifies the clock ordering - * intended for the old accelerated servers. - */ - SpecificationClock = - SpecificationClockLine[pATI->Clock][ClockIndex]; - if (SpecificationClock < 0) - break; - if (!ClockMap) - { - if (!pScreenInfo->clock[ClockIndex]) - continue; - if (!SpecificationClock) - { - if (pATI->Clock != ATI_CLOCK_CRYSTALS) - continue; - } - else - { - /* - * Due to the way clock lines are matched, the following - * can prevent the override if the clock is probed, - * documented or set by the user to a value greater than - * maxClock. - */ - if (abs(SpecificationClock - - pScreenInfo->clock[ClockIndex]) > CLOCK_TOLERANCE) - continue; - } - } - pScreenInfo->clock[ClockIndex] = SpecificationClock; - } - - /* Adjust divided clocks */ - for (ClockIndex = NumberOfUndividedClocks; - ClockIndex < NumberOfClocks; - ClockIndex++) - pScreenInfo->clock[ClockIndex] = ATIDivide( - pScreenInfo->clock[ClockIndex % NumberOfUndividedClocks], - (ClockIndex / NumberOfUndividedClocks) + 1, 0, 0); - } - - /* Tell user about fixed clocks */ - xf86ShowClocks(pScreenInfo, pATI->OptionProbeClocks ? X_PROBED : X_CONFIG); - - /* Prevent selection of high clocks, even by V_CLKDIV2 modes */ - for (ClockIndex = 0; ClockIndex < NumberOfClocks; ClockIndex++) - if (pScreenInfo->clock[ClockIndex] > pRange->maxClock) - pScreenInfo->clock[ClockIndex] = 0; -} - -/* - * ATIClockSave -- - * - * This function saves that part of an ATIHWRec that relates to clocks. - */ -void -ATIClockSave -( - ScrnInfoPtr pScreenInfo, - ATIPtr pATI, - ATIHWPtr pATIHW -) -{ - if (pScreenInfo->vtSema && (pATI->ProgrammableClock > ATI_CLOCK_FIXED)) - { - -#ifndef AVOID_CPIO - - if (pATIHW->crtc == ATI_CRTC_VGA) - { - pATIHW->ClockMap = ATIVGAProgrammableClockMap; - pATIHW->ClockUnmap = ATIVGAProgrammableClockUnmap; - } - else - -#endif /* AVOID_CPIO */ - - { - pATIHW->ClockMap = ATIProgrammableClockMap; - pATIHW->ClockUnmap = ATIProgrammableClockUnmap; - } - } - else - { - -#ifndef AVOID_CPIO - - if (pATIHW->crtc != ATI_CRTC_VGA) - -#endif /* AVOID_CPIO */ - - { - pATIHW->ClockMap = ATIAcceleratorClockMap; - pATIHW->ClockUnmap = ATIAcceleratorClockUnmap; - } - -#ifndef AVOID_CPIO - - else - { - pATIHW->ClockMap = ATIMachVGAClockMap; - pATIHW->ClockUnmap = ATIMachVGAClockUnmap; - } - -#endif /* AVOID_CPIO */ - - } } /* @@ -1152,14 +177,14 @@ ATIClockCalculate /* Set default values */ pATIHW->FeedbackDivider = pATIHW->ReferenceDivider = pATIHW->PostDivider = 0; - if ((pATI->ProgrammableClock <= ATI_CLOCK_FIXED) || - ((pATI->ProgrammableClock == ATI_CLOCK_CH8398) && + if (((pATI->ProgrammableClock == ATI_CLOCK_CH8398) && (pMode->ClockIndex < 2))) { - /* Use a fixed clock */ - ClockSelect = pMode->ClockIndex; + xf86DrvMsg(iScreen, X_ERROR, + "First two clocks of Chrontel 8398 clock generator are fixed\n"); + return FALSE; } - else + { /* Generate clock programme word, using units of kHz */ MinimumGap = ((unsigned int)(-1)) >> 1; @@ -1247,9 +272,8 @@ ATIClockCalculate ATIDSPCalculate(pATI, pATIHW, pMode); } - /* Set clock select bits, after remapping them */ - pATIHW->clock = ClockSelect; /* Save pre-map clock number */ - ClockSelect = MapClockIndex(pATIHW->ClockMap, ClockSelect); + /* Set clock select bits */ + pATIHW->clock = ClockSelect; { pATIHW->clock_cntl = CLOCK_STROBE | |