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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atibios.c,v 1.6 2000/08/04 21:07:12 tsi Exp $ */
/*
* Copyright 1999 through 2000 by Marc Aurele La France (TSI @ UQV), tsi@ualberta.ca
*
* 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 "atibios.h"
#include "atistruct.h"
#ifndef AVOID_CPIO
/*
* ATIReadBIOS --
*
* This function is called to read in an adapter's BIOS, or parts thereof.
*/
int
ATIReadBIOS
(
ATIPtr pATI,
pointer Buffer,
unsigned long Offset,
int Length
)
{
pciVideoPtr pVideo;
pciConfigPtr pPCI;
/*
* Read PCI adapter expansion ROM, but only for adapters found to have been
* disabled on server entry.
*/
if ((pVideo = pATI->PCIInfo) &&
(((pPCI = pVideo->thisCard)->pci_command &
(PCI_CMD_IO_ENABLE | PCI_CMD_MEM_ENABLE)) !=
(PCI_CMD_IO_ENABLE | PCI_CMD_MEM_ENABLE)))
{
pATI->BIOSBase = PCIGETROM(pciReadLong(pPCI->tag, PCI_MAP_ROM_REG));
return xf86ReadPciBIOS(Offset, pPCI->tag, 0, Buffer, Length);
}
/* Read legacy ROM */
if (!pATI->BIOSBase)
pATI->BIOSBase = 0x000C0000U;
return xf86ReadBIOS(pATI->BIOSBase, Offset, Buffer, Length);
}
#endif /* AVOID_CPIO */
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