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-rw-r--r--src/atiprobe.c686
1 files changed, 6 insertions, 680 deletions
diff --git a/src/atiprobe.c b/src/atiprobe.c
index ff709d3e..29ec5440 100644
--- a/src/atiprobe.c
+++ b/src/atiprobe.c
@@ -84,9 +84,6 @@ typedef struct _ATIGDev
* Definitions for I/O conflict avoidance.
*/
#define LongPort(_Port) GetBits(_Port, PCIGETIO(SPARSE_IO_BASE))
-#define DetectedVGA (1 << 0)
-#define Detected8514A (1 << 1)
-#define DetectedMach64 (1 << 2)
#define Allowed (1 << 3)
#define DoProbe (1 << 4)
typedef struct
@@ -196,56 +193,6 @@ ATICheckSparseIOBases
}
/*
- * ATIVGAProbe --
- *
- * This function looks for an IBM standard VGA, or clone, and sets
- * pATI->VGAAdapter if one is found.
- */
-static ATIPtr
-ATIVGAProbe
-(
- ATIPtr pVGA
-)
-{
- CARD8 IOValue1, IOValue2, IOValue3;
-
- if (!pVGA)
- pVGA = (ATIPtr)xnfcalloc(1, SizeOf(ATIRec));
-
- /*
- * VGA has one more attribute register than EGA. See if it can be read and
- * written. Note that the CRTC registers are not used here, so there's no
- * need to unlock them.
- */
- ATISetVGAIOBase(pVGA, inb(R_GENMO));
- (void)inb(GENS1(pVGA->CPIO_VGABase));
- IOValue1 = inb(ATTRX);
- (void)inb(GENS1(pVGA->CPIO_VGABase));
- IOValue2 = GetReg(ATTRX, 0x14U | 0x20U);
- outb(ATTRX, IOValue2 ^ 0x0FU);
- IOValue3 = GetReg(ATTRX, 0x14U | 0x20U);
- outb(ATTRX, IOValue2);
- outb(ATTRX, IOValue1);
- (void)inb(GENS1(pVGA->CPIO_VGABase));
- if (IOValue3 == (IOValue2 ^ 0x0FU))
- {
- /* VGA device detected */
- if (pVGA->Chip == ATI_CHIP_NONE)
- pVGA->Chip = ATI_CHIP_VGA;
- if (pVGA->VGAAdapter == ATI_ADAPTER_NONE)
- pVGA->VGAAdapter = ATI_ADAPTER_VGA;
- if (pVGA->Adapter == ATI_ADAPTER_NONE)
- pVGA->Adapter = ATI_ADAPTER_VGA;
- }
- else
- {
- pVGA->VGAAdapter = ATI_ADAPTER_NONE;
- }
-
- return pVGA;
-}
-
-/*
* ATIVGAWonderProbe --
*
* This function determines if ATI extended VGA registers can be accessed
@@ -257,7 +204,6 @@ ATIVGAWonderProbe
(
pciVideoPtr pVideo,
ATIPtr pATI,
- ATIPtr p8514,
CARD8 *ProbeFlags
)
{
@@ -274,24 +220,6 @@ ATIVGAWonderProbe
pATI->CPIO_VGAWonder = 0;
break;
- case Detected8514A:
- xf86Msg(X_WARNING,
- ATI_NAME ": Expected VGA Wonder capability could not be"
- " detected at I/O port 0x%04lX because it would conflict with"
- " a %s %s.\n", pATI->CPIO_VGAWonder,
- ATIBusNames[p8514->BusType], ATIAdapterNames[p8514->Adapter]);
- pATI->CPIO_VGAWonder = 0;
- break;
-
- case DetectedMach64:
- xf86Msg(X_WARNING,
- ATI_NAME ": Expected VGA Wonder capability could not be"
- " detected at I/O port 0x%04lX because it would conflict with"
- " a Mach64.\n", pATI->CPIO_VGAWonder);
- pATI->CPIO_VGAWonder = 0;
- break;
-
- case DetectedVGA:
default: /* Must be DoProbe */
if (pVideo && !xf86IsPrimaryPci(pVideo) &&
(pATI->Chip <= ATI_CHIP_88800GXD))
@@ -340,149 +268,6 @@ ATIVGAWonderProbe
}
}
-/*
- * ATI8514Probe --
- *
- * This function looks for an 8514/A compatible and returns an ATIRec if one is
- * found. The function also determines whether or not the detected 8514/A
- * compatible device is actually a Mach8 or Mach32, and sets pATI->Adapter
- * accordingly.
- */
-static ATIPtr
-ATI8514Probe
-(
- pciVideoPtr pVideo
-)
-{
- ATIPtr pATI = NULL;
- CARD16 IOValue1, IOValue2;
-
- /*
- * Save register value to be modified, just in case there is no 8514/A
- * compatible accelerator. Note that, in more ways than one,
- * SUBSYS_STAT == SUBSYS_CNTL.
- */
- IOValue1 = inw(SUBSYS_STAT);
- IOValue2 = IOValue1 & _8PLANE;
-
- /* Reset any 8514/A compatible adapter that might be present */
- outw(SUBSYS_CNTL, IOValue2 | (GPCTRL_RESET | CHPTEST_NORMAL));
- outw(SUBSYS_CNTL, IOValue2 | (GPCTRL_ENAB | CHPTEST_NORMAL |
- RVBLNKFLG | RPICKFLAG | RINVALIDIO | RGPIDLE));
-
- /* Probe for an 8514/A compatible */
- IOValue2 = inw(ERR_TERM);
- outw(ERR_TERM, 0x5A5AU);
- ProbeWaitIdleEmpty();
- if (inw(ERR_TERM) == 0x5A5AU)
- {
- outw(ERR_TERM, 0x2525U);
- if (inw(ERR_TERM) == 0x2525U)
- {
- pATI = (ATIPtr)xnfcalloc(1, SizeOf(ATIRec));
- pATI->Adapter = ATI_ADAPTER_8514A;
- pATI->ChipHasSUBSYS_CNTL = TRUE;
- pATI->PCIInfo = pVideo;
- }
- }
- outw(ERR_TERM, IOValue2);
-
- /* Restore register value clobbered by 8514/A reset attempt */
- if (!pATI)
- {
- outw(SUBSYS_CNTL, IOValue1);
- return NULL;
- }
-
- /* Ensure any Mach8 or Mach32 is not in 8514/A emulation mode */
- IOValue1 = inw(CLOCK_SEL);
- outw(CLOCK_SEL, IOValue1);
- ProbeWaitIdleEmpty();
-
- IOValue1 = IOValue2 = inw(ROM_ADDR_1);
- outw(ROM_ADDR_1, 0x5555U);
- ProbeWaitIdleEmpty();
- if (inw(ROM_ADDR_1) == 0x5555U)
- {
- outw(ROM_ADDR_1, 0x2A2AU);
- ProbeWaitIdleEmpty();
- if (inw(ROM_ADDR_1) == 0x2A2AU)
- pATI->Adapter = ATI_ADAPTER_MACH8;
- }
- outw(ROM_ADDR_1, IOValue1);
-
- if (pATI->Adapter == ATI_ADAPTER_MACH8)
- {
- /* A Mach8 or Mach32 has been detected */
- IOValue1 = inw(READ_SRC_X);
- outw(DESTX_DIASTP, 0xAAAAU);
- ProbeWaitIdleEmpty();
- if (inw(READ_SRC_X) == 0x02AAU)
- pATI->Adapter = ATI_ADAPTER_MACH32;
-
- outw(DESTX_DIASTP, 0x5555U);
- ProbeWaitIdleEmpty();
- if (inw(READ_SRC_X) == 0x0555U)
- {
- if (pATI->Adapter != ATI_ADAPTER_MACH32)
- pATI->Adapter = ATI_ADAPTER_8514A;
- }
- else
- {
- if (pATI->Adapter != ATI_ADAPTER_MACH8)
- pATI->Adapter = ATI_ADAPTER_8514A;
- }
- outw(DESTX_DIASTP, IOValue1);
- }
-
- switch (pATI->Adapter)
- {
- case ATI_ADAPTER_8514A:
- pATI->Coprocessor = ATI_CHIP_8514A;
- IOValue1 = inb(EXT_CONFIG_3);
- outb(EXT_CONFIG_3, IOValue1 & 0x0FU);
- if (!(inb(EXT_CONFIG_3) & 0xF0U))
- {
- outb(EXT_CONFIG_3, IOValue1 | 0xF0U);
- if ((inb(EXT_CONFIG_3) & 0xF0U) == 0xF0U)
- pATI->Coprocessor = ATI_CHIP_CT480;
- }
- outb(EXT_CONFIG_3, IOValue1);
- break;
-
- case ATI_ADAPTER_MACH8:
- pATI->Coprocessor = ATI_CHIP_38800_1;
- if (inw(CONFIG_STATUS_1) & MC_BUS)
- pATI->BusType = ATI_BUS_MCA16;
- break;
-
- case ATI_ADAPTER_MACH32:
- IOValue1 = inw(CONFIG_STATUS_1);
- pATI->BusType = GetBits(IOValue1, BUS_TYPE);
- pATI->BIOSBase = 0x000C0000U +
- (GetBits(IOValue2, BIOS_BASE_SEGMENT) << 11);
- if (!(IOValue1 & (_8514_ONLY | CHIP_DIS)))
- {
- pATI->VGAAdapter = ATI_ADAPTER_MACH32;
- if ((xf86ReadBIOS(pATI->BIOSBase, 0x10U,
- (pointer)(&pATI->CPIO_VGAWonder),
- SizeOf(pATI->CPIO_VGAWonder)) <
- SizeOf(pATI->CPIO_VGAWonder)) ||
- !(pATI->CPIO_VGAWonder &= SPARSE_IO_PORT))
- pATI->CPIO_VGAWonder = 0x01CEU;
- pATI->VGAOffset = 0x80U;
- }
-
- ATIMach32ChipID(pATI);
- break;
-
- default:
- break;
- }
-
- return pATI;
-}
-
#endif /* AVOID_CPIO */
/*
@@ -718,144 +503,17 @@ ATIMach64Probe
return pATI;
}
-/*
- * ATIAssignVGA --
- *
- * This function is called to associate a VGA interface with an accelerator.
- * This is done by temporarily configuring the accelerator to route VGA RAMDAC
- * I/O through the accelerator's RAMDAC. A value is then written through the
- * VGA DAC ports and a check is made to see if the same value shows up on the
- * accelerator side.
- */
static void
ATIAssignVGA
(
pciVideoPtr pVideo,
- ATIPtr *ppVGA,
ATIPtr pATI,
- ATIPtr p8514,
CARD8 *ProbeFlags
)
{
- ATIPtr pVGA = *ppVGA;
- CARD8 OldDACMask;
-
- /* Assume unassignable VGA */
- pATI->VGAAdapter = ATI_ADAPTER_NONE;
-
- /* If no assignable VGA, return now */
- if ((pATI != pVGA) && (!pVGA || (pVGA->Adapter > ATI_ADAPTER_VGA)))
- return;
-
- switch (pATI->Adapter)
- {
- case ATI_ADAPTER_8514A:
- {
- /*
- * Assumption: Bit DISABPASSTHRU in ADVFUNC_CNTL is already
- * off.
- */
- OldDACMask = inb(VGA_DAC_MASK);
-
- if (inb(IBM_DAC_MASK) == OldDACMask)
- {
- outb(VGA_DAC_MASK, 0xA5U);
- if (inb(IBM_DAC_MASK) == 0xA5U)
- pATI->VGAAdapter = ATI_ADAPTER_VGA;
- outb(VGA_DAC_MASK, OldDACMask);
- }
- }
- break;
-
- case ATI_ADAPTER_MACH8:
- {
- CARD16 ClockSel = inw(CLOCK_SEL);
-
- if (ClockSel & DISABPASSTHRU)
- outw(CLOCK_SEL, ClockSel & ~DISABPASSTHRU);
-
- ProbeWaitIdleEmpty();
-
- OldDACMask = inb(VGA_DAC_MASK);
-
- if (inb(IBM_DAC_MASK) == OldDACMask)
- {
- outb(VGA_DAC_MASK, 0xA5U);
- if (inb(IBM_DAC_MASK) == 0xA5U)
- pATI->VGAAdapter = ATI_ADAPTER_VGA;
- outb(VGA_DAC_MASK, OldDACMask);
- }
-
- if (ClockSel & DISABPASSTHRU)
- outw(CLOCK_SEL, ClockSel);
- }
- break;
-
- case ATI_ADAPTER_MACH32:
- {
- CARD16 ClockSel = inw(CLOCK_SEL),
- MiscOptions = inw(MISC_OPTIONS);
-
- if (ClockSel & DISABPASSTHRU)
- outw(CLOCK_SEL, ClockSel & ~DISABPASSTHRU);
- if (MiscOptions & (DISABLE_VGA | DISABLE_DAC))
- outw(MISC_OPTIONS,
- MiscOptions & ~(DISABLE_VGA | DISABLE_DAC));
-
- ProbeWaitIdleEmpty();
-
- OldDACMask = inb(VGA_DAC_MASK);
-
- if (inb(IBM_DAC_MASK) == OldDACMask)
- {
- outb(VGA_DAC_MASK, 0xA5U);
- if (inb(IBM_DAC_MASK) == 0xA5U)
- pATI->VGAAdapter = ATI_ADAPTER_MACH32;
- outb(VGA_DAC_MASK, OldDACMask);
- }
-
- if (ClockSel & DISABPASSTHRU)
- outw(CLOCK_SEL, ClockSel);
- if (MiscOptions & (DISABLE_VGA | DISABLE_DAC))
- outw(MISC_OPTIONS, MiscOptions);
- }
- break;
-
- case ATI_ADAPTER_MACH64:
- {
- CARD32 DACCntl = inr(DAC_CNTL);
-
- if (!(DACCntl & DAC_VGA_ADR_EN))
- outr(DAC_CNTL, DACCntl | DAC_VGA_ADR_EN);
-
- OldDACMask = inb(VGA_DAC_MASK);
-
- if (in8(M64_DAC_MASK) == OldDACMask)
- {
- outb(VGA_DAC_MASK, 0xA5U);
- if (in8(M64_DAC_MASK) == 0xA5U)
- pATI->VGAAdapter = ATI_ADAPTER_MACH64;
- outb(VGA_DAC_MASK, OldDACMask);
- }
-
- if (!(DACCntl & DAC_VGA_ADR_EN))
- outr(DAC_CNTL, DACCntl);
- }
- break;
-
- default:
- break;
- }
-
- if (pATI->VGAAdapter == ATI_ADAPTER_NONE)
- {
- pATI->CPIO_VGAWonder = 0;
- return;
- }
-
if (pATI->CPIO_VGAWonder)
{
- ATIVGAWonderProbe(pVideo, pATI, p8514, ProbeFlags);
+ ATIVGAWonderProbe(pVideo, pATI, ProbeFlags);
if (!pATI->CPIO_VGAWonder)
{
/*
@@ -865,21 +523,9 @@ ATIAssignVGA
* of I/O through the bus tree.
*/
pATI->CPIO_VGAWonder = GRAX;
- ATIVGAWonderProbe(pVideo, pATI, p8514, ProbeFlags);
+ ATIVGAWonderProbe(pVideo, pATI, ProbeFlags);
}
}
-
- if (pATI == pVGA)
- {
- pATI->SharedVGA = TRUE;
- return;
- }
-
- /* Assign the VGA to this adapter */
- xfree(pVGA);
- *ppVGA = pATI;
-
- xf86MsgVerb(X_INFO, 3, ATI_NAME ": VGA assigned to this adapter.\n");
}
/*
@@ -892,16 +538,10 @@ static void
ATIFindVGA
(
pciVideoPtr pVideo,
- ATIPtr *ppVGA,
- ATIPtr *ppATI,
- ATIPtr p8514,
+ ATIPtr pATI,
CARD8 *ProbeFlags
)
{
- ATIPtr pATI = *ppATI;
-
- if (!*ppVGA)
- {
/*
* An ATI PCI adapter has been detected at this point, and its VGA, if
* any, is shareable. Ensure the VGA isn't in sleep mode.
@@ -910,14 +550,7 @@ ATIFindVGA
outb(GENVS, 0x01U);
outb(GENENA, 0x0EU);
- pATI = ATIVGAProbe(pATI);
- if (pATI->VGAAdapter == ATI_ADAPTER_NONE)
- return;
-
- ppVGA = ppATI;
- }
-
- ATIAssignVGA(pVideo, ppVGA, pATI, p8514, ProbeFlags);
+ ATIAssignVGA(pVideo, pATI, ProbeFlags);
}
#endif /* AVOID_CPIO */
@@ -954,22 +587,12 @@ ATIProbe
#ifndef AVOID_CPIO
- ATIPtr pVGA = NULL, p8514 = NULL;
pciConfigPtr *xf86PciInfo = xf86GetPciConfigInfo();
PortPtr PCIPorts = NULL;
int nPCIPort = 0;
- CARD8 fChipsets[ATI_CHIPSET_MAX];
static const IOADDRESS Mach64SparseIOBases[] = {0x02ECU, 0x01CCU, 0x01C8U};
CARD8 ProbeFlags[LongPort(SPARSE_IO_BASE) + 1];
- unsigned long BIOSBase;
- static const CARD8 ATISignature[] = " 761295520";
-# define SignatureSize 10
-# define PrefixSize 0x50U
-# define BIOSSignature 0x30U
- CARD8 BIOS[PrefixSize];
-# define BIOSWord(_n) (BIOS[_n] | (BIOS[(_n) + 1] << 8))
-
#endif /* AVOID_CPIO */
# define AddAdapter(_p) \
@@ -981,12 +604,6 @@ ATIProbe
(_p)->iEntity = -2; \
} while (0)
-#ifndef AVOID_CPIO
-
- (void)memset(fChipsets, FALSE, SizeOf(fChipsets));
-
-#endif /* AVOID_CPIO */
-
if (!(flags & PROBE_DETECT))
{
/*
@@ -1031,13 +648,6 @@ ATIProbe
xf86MsgVerb(X_INFO, 3,
ATI_NAME ": Candidate \"Device\" section \"%s\".\n",
pGDev->identifier);
-
-#ifndef AVOID_CPIO
-
- fChipsets[Chipset] = TRUE;
-
-#endif /* AVOID_CPIO */
-
}
xfree(GDevs);
@@ -1156,116 +766,6 @@ ATIProbe
#ifndef AVOID_CPIO
- /*
- * This is the second pass through PCI configuration space. Much
- * of this is verbiage to deal with potential situations that are
- * very unlikely to occur in practice.
- *
- * First, look for non-ATI shareable VGA's. For now, these must
- * the primary device.
- */
- if (ATICheckSparseIOBases(NULL, ProbeFlags, ATTRX, 16, TRUE) ==
- DoProbe)
- {
- for (i = 0; (pVideo = xf86PciVideoInfo[i++]); )
- {
- if ((pVideo->vendor == PCI_VENDOR_ATI) ||
- !xf86IsPrimaryPci(pVideo))
- continue;
-
- if (!xf86CheckPciSlot(pVideo->bus,
- pVideo->device,
- pVideo->func))
- continue;
-
- xf86SetPciVideo(pVideo, MEM_IO);
-
- pATI = ATIVGAProbe(NULL);
- if (pATI->Adapter == ATI_ADAPTER_NONE)
- {
- xfree(pATI);
- xf86Msg(X_WARNING,
- ATI_NAME ": PCI/AGP VGA compatible in slot"
- " %d:%d:%d could not be detected!\n",
- pVideo->bus, pVideo->device, pVideo->func);
- }
- else
- {
- sprintf(Identifier,
- "Shared non-ATI VGA in PCI/AGP slot %d:%d:%d",
- pVideo->bus, pVideo->device, pVideo->func);
- xf86MsgVerb(X_INFO, 3, ATI_NAME ": %s detected.\n",
- Identifier);
- AddAdapter(pATI);
- pATI->SharedVGA = TRUE;
- pATI->BusType = ATI_BUS_PCI;
- pATI->PCIInfo = pVideo;
- }
-
- xf86SetPciVideo(NULL, NONE);
- }
- }
-
- /* Next, look for PCI Mach32's */
- for (i = 0; (pVideo = xf86PciVideoInfo[i++]); )
- {
- if ((pVideo->vendor != PCI_VENDOR_ATI) ||
- (pVideo->chipType != PCI_CHIP_MACH32))
- continue;
-
- switch (ATICheckSparseIOBases(pVideo, ProbeFlags,
- 0x02E8U, 8, TRUE))
- {
- case 0:
- xf86Msg(X_WARNING,
- ATI_NAME ": PCI Mach32 in slot %d:%d:%d will not"
- " be enabled\n because it conflicts with a"
- " non-video PCI/AGP device.\n",
- pVideo->bus, pVideo->device, pVideo->func);
- break;
-
- default: /* Must be DoProbe */
- if (!xf86CheckPciSlot(pVideo->bus,
- pVideo->device,
- pVideo->func))
- continue;
-
- xf86SetPciVideo(pVideo, MEM_IO);
-
- if (!(pATI = ATI8514Probe(pVideo)))
- {
- xf86Msg(X_WARNING,
- ATI_NAME ": PCI Mach32 in slot %d:%d:%d could"
- " not be detected!\n",
- pVideo->bus, pVideo->device, pVideo->func);
- }
- else
- {
- sprintf(Identifier,
- "Shared 8514/A in PCI slot %d:%d:%d",
- pVideo->bus, pVideo->device, pVideo->func);
- xf86MsgVerb(X_INFO, 3,
- ATI_NAME ": %s detected.\n", Identifier);
- if (pATI->Adapter != ATI_ADAPTER_MACH32)
- xf86Msg(X_WARNING,
- ATI_NAME ": PCI Mach32 in slot %d:%d:%d"
- " could only be detected as an %s!\n",
- pVideo->bus, pVideo->device, pVideo->func,
- ATIAdapterNames[pATI->Adapter]);
-
- AddAdapter(pATI);
- pATI->SharedAccelerator = TRUE;
-
- if ((pATI->VGAAdapter != ATI_ADAPTER_NONE) ||
- (pATI->Coprocessor != ATI_CHIP_NONE))
- ATIFindVGA(pVideo, &pVGA, &pATI, p8514,
- ProbeFlags);
- }
- xf86SetPciVideo(NULL, NONE);
- break;
- }
- }
-
/* Next, look for sparse I/O Mach64's */
for (i = 0; (pVideo = xf86PciVideoInfo[i++]); )
{
@@ -1338,12 +838,10 @@ ATIProbe
" detected.\n", Identifier,
Mach64SparseIOBases[j]);
AddAdapter(pATI);
- pATI->SharedAccelerator = TRUE;
pATI->PCIInfo = pVideo;
if (pATI->VGAAdapter != ATI_ADAPTER_NONE)
- ATIFindVGA(pVideo, &pVGA, &pATI, p8514,
- ProbeFlags);
+ ATIFindVGA(pVideo, pATI, ProbeFlags);
}
xf86SetPciVideo(NULL, NONE);
@@ -1387,7 +885,6 @@ ATIProbe
ATI_NAME ": %s with Block 0 base 0x%08lX detected.\n",
Identifier, pATI->Block0Base);
AddAdapter(pATI);
- pATI->SharedAccelerator = TRUE;
pATI->PCIInfo = pVideo;
}
else
@@ -1456,12 +953,11 @@ ATIProbe
xf86MsgVerb(X_INFO, 3, ATI_NAME ": %s detected.\n",
Identifier);
AddAdapter(pATI);
- pATI->SharedAccelerator = TRUE;
#ifndef AVOID_CPIO
if (pATI->VGAAdapter != ATI_ADAPTER_NONE)
- ATIFindVGA(pVideo, &pVGA, &pATI, p8514, ProbeFlags);
+ ATIFindVGA(pVideo, pATI, ProbeFlags);
#endif /* AVOID_CPIO */
@@ -1482,176 +978,6 @@ ATIProbe
}
}
-#ifndef AVOID_CPIO
-
- /*
- * At this point, if there's a non-shareable VGA with its own framebuffer,
- * find out if it's an ATI VGA Wonder.
- */
- do
- {
- if (!nATIGDev || !pVGA || (pVGA->VGAAdapter > ATI_ADAPTER_VGA))
- break;
-
- /* If it has not been assigned to a coprocessor, keep track of it */
- if (pVGA->Coprocessor == ATI_CHIP_NONE)
- AddAdapter(pVGA);
-
- /*
- * A VGA should have installed its int 10 vector. Use that to find the
- * VGA BIOS. If this fails, scan all legacy BIOS segments, in 512-byte
- * increments.
- */
- if (xf86ReadBIOS(0U, 0x42U, BIOS, 2) != 2)
- goto NoVGAWonder;
-
- pATI = NULL;
- BIOSBase = 0;
- if (!(BIOS[0] & 0x1FU)) /* Otherwise there's no 512-byte alignment */
- BIOSBase = ((BIOS[1] << 8) | BIOS[0]) << 4;
-
- /* Look for its BIOS */
- for(; ; BIOSBase += 0x00000200U)
- {
- if (!BIOSBase)
- goto SkipBiosSegment;
-
- if (BIOSBase >= 0x000F8000U)
- goto NoVGAWonder;
-
- /* Skip over those that are already known */
- for (i = 0; i < nATIPtr; i++)
- if (ATIPtrs[i]->BIOSBase == BIOSBase)
- goto SkipBiosSegment;
-
- /* Get first 80 bytes of video BIOS */
- if (xf86ReadBIOS(BIOSBase, 0, BIOS, SizeOf(BIOS)) !=
- SizeOf(BIOS))
- goto NoVGAWonder;
-
- if ((BIOS[0x00U] != 0x55U) || (BIOS[0x01U] != 0xAAU))
- goto SkipBiosSegment;
-
- if ((BIOS[0x1EU] == 'I') &&
- (BIOS[0x1FU] == 'B') &&
- (BIOS[0x20U] == 'M'))
- break;
-
- /* XXX Should PCI BIOS signature be checked for here ? */
- if ((BIOS[0x20U] == 'P') &&
- (BIOS[0x21U] == 'C') &&
- (BIOS[0x22U] == 'I'))
- break;
-
- SkipBiosSegment:
- if (pATI)
- continue;
-
- pATI = pVGA;
- BIOSBase = 0x000C0000U - 0x00000200U;
- }
-
- pVGA->BIOSBase = BIOSBase;
-
- /* Look for the ATI signature string */
- if (memcmp(BIOS + BIOSSignature, ATISignature, SignatureSize))
- break;
-
- if (BIOS[0x40U] != '3')
- break;
-
- switch (BIOS[0x41U])
- {
- case '1':
- /* This is a Mach8 or VGA Wonder adapter of some kind */
- if ((BIOS[0x43U] >= '1') && (BIOS[0x43U] <= '6'))
- pVGA->Chip = BIOS[0x43U] - ('1' - ATI_CHIP_18800);
-
- switch (BIOS[0x43U])
- {
- case '1': /* ATI_CHIP_18800 */
- pVGA->VGAOffset = 0xB0U;
- pVGA->VGAAdapter = ATI_ADAPTER_V3;
- break;
-
- case '2': /* ATI_CHIP_18800_1 */
- pVGA->VGAOffset = 0xB0U;
- if (BIOS[0x42U] & 0x10U)
- pVGA->VGAAdapter = ATI_ADAPTER_V5;
- else
- pVGA->VGAAdapter = ATI_ADAPTER_V4;
- break;
-
- case '3': /* ATI_CHIP_28800_2 */
- case '4': /* ATI_CHIP_28800_4 */
- case '5': /* ATI_CHIP_28800_5 */
- case '6': /* ATI_CHIP_28800_6 */
- pVGA->VGAOffset = 0xA0U;
- if (BIOS[0x44U] & 0x80U)
- pVGA->VGAAdapter = ATI_ADAPTER_XL;
- else
- pVGA->VGAAdapter = ATI_ADAPTER_PLUS;
- break;
-
- case 'a': /* A crippled Mach32 */
- case 'b':
- case 'c':
- pVGA->VGAOffset = 0x80U;
- pVGA->VGAAdapter = ATI_ADAPTER_NONISA;
- ATIMach32ChipID(pVGA);
- ProbeWaitIdleEmpty();
- if (inw(SUBSYS_STAT) != (CARD16)(-1))
- pVGA->ChipHasSUBSYS_CNTL = TRUE;
- break;
-#if 0
- case ' ': /* A crippled Mach64 */
- pVGA->VGAOffset = 0x80U;
- pVGA->VGAAdapter = ATI_ADAPTER_NONISA;
- ATIMach64ChipID(pVGA, 0);
- break;
-#endif
- default:
- break;
- }
-
- if (pVGA->VGAAdapter == ATI_ADAPTER_NONE)
- break;
-
- /* Set VGA Wonder I/O port */
- pVGA->CPIO_VGAWonder = BIOSWord(0x10U) & SPARSE_IO_PORT;
- if (!pVGA->CPIO_VGAWonder)
- pVGA->CPIO_VGAWonder = 0x01CEU;
-
- ATIVGAWonderProbe(NULL, pVGA, p8514, ProbeFlags);
- break;
-#if 0
- case '2':
- pVGA->VGAOffset = 0xB0U; /* Presumably */
- pVGA->VGAAdapter = ATI_ADAPTER_EGA_PLUS;
- break;
-
- case '3':
- pVGA->VGAOffset = 0xB0U; /* Presumably */
- pVGA->VGAAdapter = ATI_ADAPTER_BASIC;
- break;
-
- case '?': /* A crippled Mach64 */
- pVGA->VGAAdapter = ATI_ADAPTER_NONISA;
- ATIMach64ChipID(pVGA, 0);
- break;
-#endif
- default:
- break;
- }
-
- if (pVGA->Adapter <= ATI_ADAPTER_VGA)
- pVGA->Adapter = pVGA->VGAAdapter;
-
-NoVGAWonder:;
- } while (0);
-
-#endif /* AVOID_CPIO */
-
/*
* Re-order list of detected devices so that the primary device is before
* any other PCI device.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 23:25:02 +0000