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/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bus/netbsdPci.c,v 1.4 2003/08/24 17:37:04 dawes Exp $ */
/*
* Copyright (C) 1994-2003 The XFree86 Project, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of the XFree86 Project
* shall not be used in advertising or otherwise to promote the sale,
* use or other dealings in this Software without prior written
* authorization from the XFree86 Project.
*/
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <dev/pci/pciio.h>
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86OSpriv.h"
#include "Pci.h"
static CARD32 netbsdPciConfRead(PCITAG, int);
static void netbsdPciConfWrite(PCITAG, int, CARD32);
static void netbsdPciSetBits(PCITAG, int, CARD32, CARD32);
static int devpci = -1;
static pciBusFuncs_t netbsdFuncs0 = {
/* pciReadLong */ netbsdPciConfRead,
/* pciWriteLong */ netbsdPciConfWrite,
/* pciSetBitsLong */ netbsdPciSetBits,
/* pciAddrHostToBus */ pciAddrNOOP,
/* pciAddrBusToHost */ pciAddrNOOP
};
static pciBusInfo_t netbsdPci0 = {
/* configMech */ PCI_CFG_MECH_OTHER,
/* numDevices */ 32,
/* secondary */ FALSE,
/* primary_bus */ 0,
/* funcs */ &netbsdFuncs0,
/* pciBusPriv */ NULL,
/* bridge */ NULL
};
void
netbsdPciInit()
{
struct pciio_businfo pci_businfo;
devpci = open("/dev/pci0", O_RDWR);
if (devpci == -1)
FatalError("netbsdPciInit: can't open /dev/pci0\n");
pciNumBuses = 1;
pciBusInfo[0] = &netbsdPci0;
pciFindFirstFP = pciGenFindFirst;
pciFindNextFP = pciGenFindNext;
/* use businfo to get the number of devs */
if (ioctl(devpci, PCI_IOC_BUSINFO, &pci_businfo) != 0)
FatalError("netbsdPciInit: not a PCI bus device");
netbsdPci0.numDevices = pci_businfo.maxdevs;
}
static CARD32
netbsdPciConfRead(PCITAG tag, int reg)
{
struct pciio_bdf_cfgreg bdfr;
bdfr.bus = PCI_BUS_FROM_TAG(tag);
bdfr.device = PCI_DEV_FROM_TAG(tag);
bdfr.function = PCI_FUNC_FROM_TAG(tag);
bdfr.cfgreg.reg = reg;
if (ioctl(devpci, PCI_IOC_BDF_CFGREAD, &bdfr) == -1)
FatalError("netbsdPciConfRead: failed on %d/%d/%d\n",
bdfr.bus, bdfr.device, bdfr.function);
return (bdfr.cfgreg.val);
}
static void
netbsdPciConfWrite(PCITAG tag, int reg, CARD32 val)
{
struct pciio_bdf_cfgreg bdfr;
bdfr.bus = PCI_BUS_FROM_TAG(tag);
bdfr.device = PCI_DEV_FROM_TAG(tag);
bdfr.function = PCI_FUNC_FROM_TAG(tag);
bdfr.cfgreg.reg = reg;
bdfr.cfgreg.val = val;
if (ioctl(devpci, PCI_IOC_BDF_CFGWRITE, &bdfr) == -1)
FatalError("netbsdPciConfWrite: failed on %d/%d/%d\n",
bdfr.bus, bdfr.device, bdfr.function);
}
static void
netbsdPciSetBits(PCITAG tag, int reg, CARD32 mask, CARD32 bits)
{
CARD32 val;
val = netbsdPciConfRead(tag, reg);
val = (val & ~mask) | (bits & mask);
netbsdPciConfWrite(tag, reg, val);
}
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