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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atibus.c,v 1.18 2003/01/22 21:44:10 tsi Exp $ */
/*
* Copyright 1997 through 2003 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of Marc Aurele La France not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Marc Aurele La France makes no representations
* about the suitability of this software for any purpose. It is provided
* "as-is" without express or implied warranty.
*
* MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
* EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "ati.h"
#include "atiadapter.h"
#include "atibus.h"
#include "atichip.h"
#include "atiio.h"
#include "atistruct.h"
#include "ativersion.h"
/*
* Definitions related to an adapter's system bus interface.
*/
const char *ATIBusNames[] =
{
"16-Bit ISA",
"EISA",
"16-Bit MicroChannel",
"32-Bit MicroChannel",
"386SX Local Bus",
"386DX Local Bus",
"VESA Local Bus",
"PCI",
"AGP"
};
/*
* ATIClaimResources --
*
* This function registers most of the bus resources used by an adapter. The
* exceptions are PCI-configured resources and non-PCI non-AGP linear
* apertures, both of which are registered by ATIPreInit(). This function also
* attempts to register unshareable resources for inactive PCI adapters,
* whether or not they are relocatable.
*/
static void
ATIClaimResources
(
ATIPtr pATI,
Bool Active
)
{
resPtr pResources;
#ifndef AVOID_CPIO
resRange Resources[2] = {{0, 0, 0}, _END};
/* Claim VGA and VGAWonder resources */
if ((pATI->VGAAdapter != ATI_ADAPTER_NONE) && (Active || !pATI->SharedVGA))
{
/*
* 18800-x's are the only ATI controllers that decode all ISA aliases
* of VGA and VGA Wonder I/O ports. Other x8800's do not decode >any<
* VGA aliases, but do decode VGA Wonder aliases whose most significant
* nibble is zero.
*/
xf86ClaimFixedResources(
(pATI->Chip <= ATI_CHIP_18800_1) ?
(pATI->SharedVGA ? resVgaSparseShared : resVgaSparseExclusive) :
(pATI->SharedVGA ? resVgaShared : resVgaExclusive),
pATI->iEntity);
if (pATI->CPIO_VGAWonder)
{
if (pATI->SharedVGA)
Resources[0].type = ResShrIoSparse | ResBus;
else
Resources[0].type = ResExcIoSparse | ResBus;
Resources[0].rBase = pATI->CPIO_VGAWonder;
if (pATI->Chip <= ATI_CHIP_18800_1)
Resources[0].rMask = 0x03FEU;
else
Resources[0].rMask = 0xF3FEU;
xf86ClaimFixedResources(Resources, pATI->iEntity);
(void)memcpy(pATI->VGAWonderResources,
Resources, SizeOf(Resources));
}
}
if (!Active && pATI->SharedAccelerator)
return;
/* Claim 8514/A resources */
if (pATI->ChipHasSUBSYS_CNTL)
xf86ClaimFixedResources(
pATI->SharedAccelerator ? res8514Shared : res8514Exclusive,
pATI->iEntity);
/* Claim Mach64 sparse I/O resources */
if ((pATI->Adapter == ATI_ADAPTER_MACH64) &&
(pATI->CPIODecoding == SPARSE_IO))
{
if (pATI->SharedAccelerator)
Resources[0].type = ResShrIoSparse | ResBus;
else
Resources[0].type = ResExcIoSparse | ResBus;
Resources[0].rBase = pATI->CPIOBase;
Resources[0].rMask = 0x03FCU;
xf86ClaimFixedResources(Resources, pATI->iEntity);
}
if (Active)
return;
#else /* AVOID_CPIO */
if (pATI->SharedAccelerator)
return;
#endif /* AVOID_CPIO */
/* Register unshared relocatable resources for inactive adapters */
do
{
pResources = xf86RegisterResources(pATI->iEntity, NULL, ResExclusive);
if (!pResources)
return;
pResources = xf86ReallocatePciResources(pATI->iEntity, pResources);
} while (!pResources);
xf86Msg(X_WARNING,
ATI_NAME ": Unable to register the following resources for inactive"
" adapter:\n");
xf86PrintResList(1, pResources);
xf86FreeResList(pResources);
}
/*
* ATIClaimBusSlot --
*
* Claim an adapter and register its resources.
*/
int
ATIClaimBusSlot
(
DriverPtr pDriver,
int Chipset,
GDevPtr pGDev,
Bool Active,
ATIPtr pATI
)
{
pciVideoPtr pVideo = pATI->PCIInfo;
if (pVideo)
pATI->iEntity =
xf86ClaimPciSlot(pVideo->bus, pVideo->device, pVideo->func,
pDriver, Chipset, pGDev, Active);
else
pATI->iEntity = xf86ClaimIsaSlot(pDriver, Chipset, pGDev, Active);
if (pATI->iEntity >= 0)
ATIClaimResources(pATI, Active);
return pATI->iEntity;
}
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