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mpv/vidix/pci.c

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/*
(C) 2002 - library implementation by Nick Kyrshev
XFree86 3.3.3 scanpci.c, modified for GATOS/win/gfxdump by Øyvind Aabling.
*/
/* $XConsortium: scanpci.c /main/25 1996/10/27 11:48:40 kaleb $ */
/*
* name: scanpci.c
*
* purpose: This program will scan for and print details of
* devices on the PCI bus.
* author: Robin Cutshaw (robin@xfree86.org)
*
* supported O/S's: SVR4, UnixWare, SCO, Solaris,
* FreeBSD, NetBSD, 386BSD, BSDI BSD/386,
* Linux, Mach/386, ISC
* DOS (WATCOM 9.5 compiler)
*
* compiling: [g]cc scanpci.c -o scanpci
* for SVR4 (not Solaris), UnixWare use:
* [g]cc -DSVR4 scanpci.c -o scanpci
* for DOS, watcom 9.5:
* wcc386p -zq -omaxet -7 -4s -s -w3 -d2 name.c
* and link with PharLap or other dos extender for exe
*
*/
/* $XFree86: xc/programs/Xserver/hw/xfree86/etc/scanpci.c,v 3.34.2.17 1998/11/10 11:55:40 dawes Exp $ */
/*
* Copyright 1995 by Robin Cutshaw <robin@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 names of the above listed copyright holder(s)
* not be used in advertising or publicity pertaining to distribution of
* the software without specific, written prior permission. The above listed
* copyright holder(s) make(s) no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) 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 "dha.h"
#include <errno.h>
#include <string.h>
#include <stdio.h>
#ifdef __unix__
#define __USE_UNIX98
#include <unistd.h>
#endif
#include "AsmMacros.h"
/* OS depended stuff */
#if defined (__linux__)
#include "sysdep/pci_linux.c"
#elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__) || defined(__DragonFly__)
#include "sysdep/pci_freebsd.c"
#elif defined (__386BSD__)
#include "sysdep/pci_386bsd.c"
#elif defined (__NetBSD__)
#include "sysdep/pci_netbsd.c"
#elif defined (__OpenBSD__)
#include "sysdep/pci_openbsd.c"
#elif defined (__bsdi__)
#include "sysdep/pci_bsdi.c"
#elif defined (Lynx)
#include "sysdep/pci_lynx.c"
#elif defined (MACH386)
#include "sysdep/pci_mach386.c"
#elif defined (__SVR4)
#if !defined(SVR4)
#define SVR4
#endif
#include "sysdep/pci_svr4.c"
#elif defined (SCO)
#include "sysdep/pci_sco.c"
#elif defined (ISC)
#include "sysdep/pci_isc.c"
#elif defined (__EMX__)
#include "sysdep/pci_os2.c"
#elif defined (_WIN32) || defined(__CYGWIN__)
#include "sysdep/pci_win32.c"
#ifdef __MINGW32__
#define ENOTSUP 134 /* Not supported */
#endif
#endif
#if defined(Lynx) && defined(__powerpc__)
/* let's mimick the Linux Alpha stuff for LynxOS so we don't have
* to change too much code
*/
#include <smem.h>
static unsigned char *pciConfBase;
static __inline__ unsigned long
static swapl(unsigned long val)
{
unsigned char *p = (unsigned char *)&val;
return (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | (p[0] << 0);
}
#define BUS(tag) (((tag)>>16)&0xff)
#define DFN(tag) (((tag)>>8)&0xff)
#define PCIBIOS_DEVICE_NOT_FOUND 0x86
#define PCIBIOS_SUCCESSFUL 0x00
int pciconfig_read(
unsigned char bus,
unsigned char dev,
unsigned char offset,
int len, /* unused, alway 4 */
unsigned long *val)
{
unsigned long _val;
unsigned long *ptr;
dev >>= 3;
if (bus || dev >= 16) {
*val = 0xFFFFFFFF;
return PCIBIOS_DEVICE_NOT_FOUND;
} else {
ptr = (unsigned long *)(pciConfBase + ((1<<dev) | offset));
_val = swapl(*ptr);
}
*val = _val;
return PCIBIOS_SUCCESSFUL;
}
int pciconfig_write(
unsigned char bus,
unsigned char dev,
unsigned char offset,
int len, /* unused, alway 4 */
unsigned long val)
{
unsigned long _val;
unsigned long *ptr;
dev >>= 3;
_val = swapl(val);
if (bus || dev >= 16) {
return PCIBIOS_DEVICE_NOT_FOUND;
} else {
ptr = (unsigned long *)(pciConfBase + ((1<<dev) | offset));
*ptr = _val;
}
return PCIBIOS_SUCCESSFUL;
}
#endif /* defined(Lynx) && defined(__powerpc__) */
#if !defined(__powerpc__)
struct pci_config_reg {
/* start of official PCI config space header */
union {
unsigned long device_vendor;
struct {
unsigned short vendor;
unsigned short device;
} dv;
} dv_id;
#define _device_vendor dv_id.device_vendor
#define _vendor dv_id.dv.vendor
#define _device dv_id.dv.device
union {
unsigned long status_command;
struct {
unsigned short command;
unsigned short status;
} sc;
} stat_cmd;
#define _status_command stat_cmd.status_command
#define _command stat_cmd.sc.command
#define _status stat_cmd.sc.status
union {
unsigned long class_revision;
struct {
unsigned char rev_id;
unsigned char prog_if;
unsigned char sub_class;
unsigned char base_class;
} cr;
} class_rev;
#define _class_revision class_rev.class_revision
#define _rev_id class_rev.cr.rev_id
#define _prog_if class_rev.cr.prog_if
#define _sub_class class_rev.cr.sub_class
#define _base_class class_rev.cr.base_class
union {
unsigned long bist_header_latency_cache;
struct {
unsigned char cache_line_size;
unsigned char latency_timer;
unsigned char header_type;
unsigned char bist;
} bhlc;
} bhlc;
#define _bist_header_latency_cache bhlc.bist_header_latency_cache
#define _cache_line_size bhlc.bhlc.cache_line_size
#define _latency_timer bhlc.bhlc.latency_timer
#define _header_type bhlc.bhlc.header_type
#define _bist bhlc.bhlc.bist
union {
struct {
unsigned long dv_base0;
unsigned long dv_base1;
unsigned long dv_base2;
unsigned long dv_base3;
unsigned long dv_base4;
unsigned long dv_base5;
} dv;
struct {
unsigned long bg_rsrvd[2];
unsigned char primary_bus_number;
unsigned char secondary_bus_number;
unsigned char subordinate_bus_number;
unsigned char secondary_latency_timer;
unsigned char io_base;
unsigned char io_limit;
unsigned short secondary_status;
unsigned short mem_base;
unsigned short mem_limit;
unsigned short prefetch_mem_base;
unsigned short prefetch_mem_limit;
} bg;
} bc;
#define _base0 bc.dv.dv_base0
#define _base1 bc.dv.dv_base1
#define _base2 bc.dv.dv_base2
#define _base3 bc.dv.dv_base3
#define _base4 bc.dv.dv_base4
#define _base5 bc.dv.dv_base5
#define _primary_bus_number bc.bg.primary_bus_number
#define _secondary_bus_number bc.bg.secondary_bus_number
#define _subordinate_bus_number bc.bg.subordinate_bus_number
#define _secondary_latency_timer bc.bg.secondary_latency_timer
#define _io_base bc.bg.io_base
#define _io_limit bc.bg.io_limit
#define _secondary_status bc.bg.secondary_status
#define _mem_base bc.bg.mem_base
#define _mem_limit bc.bg.mem_limit
#define _prefetch_mem_base bc.bg.prefetch_mem_base
#define _prefetch_mem_limit bc.bg.prefetch_mem_limit
unsigned long rsvd1;
unsigned long rsvd2;
unsigned long _baserom;
unsigned long rsvd3;
unsigned long rsvd4;
union {
unsigned long max_min_ipin_iline;
struct {
unsigned char int_line;
unsigned char int_pin;
unsigned char min_gnt;
unsigned char max_lat;
} mmii;
} mmii;
#define _max_min_ipin_iline mmii.max_min_ipin_iline
#define _int_line mmii.mmii.int_line
#define _int_pin mmii.mmii.int_pin
#define _min_gnt mmii.mmii.min_gnt
#define _max_lat mmii.mmii.max_lat
/* I don't know how accurate or standard this is (DHD) */
union {
unsigned long user_config;
struct {
unsigned char user_config_0;
unsigned char user_config_1;
unsigned char user_config_2;
unsigned char user_config_3;
} uc;
} uc;
#define _user_config uc.user_config
#define _user_config_0 uc.uc.user_config_0
#define _user_config_1 uc.uc.user_config_1
#define _user_config_2 uc.uc.user_config_2
#define _user_config_3 uc.uc.user_config_3
/* end of official PCI config space header */
unsigned long _pcibusidx;
unsigned long _pcinumbus;
unsigned long _pcibuses[16];
unsigned short _configtype; /* config type found */
unsigned short _ioaddr; /* config type 1 - private I/O addr */
unsigned long _cardnum; /* config type 2 - private card number */
};
#else
/* ppc is big endian, swapping bytes is not quite enough
* to interpret the PCI config registers...
*/
struct pci_config_reg {
/* start of official PCI config space header */
union {
unsigned long device_vendor;
struct {
unsigned short device;
unsigned short vendor;
} dv;
} dv_id;
#define _device_vendor dv_id.device_vendor
#define _vendor dv_id.dv.vendor
#define _device dv_id.dv.device
union {
unsigned long status_command;
struct {
unsigned short status;
unsigned short command;
} sc;
} stat_cmd;
#define _status_command stat_cmd.status_command
#define _command stat_cmd.sc.command
#define _status stat_cmd.sc.status
union {
unsigned long class_revision;
struct {
unsigned char base_class;
unsigned char sub_class;
unsigned char prog_if;
unsigned char rev_id;
} cr;
} class_rev;
#define _class_revision class_rev.class_revision
#define _rev_id class_rev.cr.rev_id
#define _prog_if class_rev.cr.prog_if
#define _sub_class class_rev.cr.sub_class
#define _base_class class_rev.cr.base_class
union {
unsigned long bist_header_latency_cache;
struct {
unsigned char bist;
unsigned char header_type;
unsigned char latency_timer;
unsigned char cache_line_size;
} bhlc;
} bhlc;
#define _bist_header_latency_cache bhlc.bist_header_latency_cache
#define _cache_line_size bhlc.bhlc.cache_line_size
#define _latency_timer bhlc.bhlc.latency_timer
#define _header_type bhlc.bhlc.header_type
#define _bist bhlc.bhlc.bist
union {
struct {
unsigned long dv_base0;
unsigned long dv_base1;
unsigned long dv_base2;
unsigned long dv_base3;
unsigned long dv_base4;
unsigned long dv_base5;
} dv;
/* ?? */
struct {
unsigned long bg_rsrvd[2];
unsigned char secondary_latency_timer;
unsigned char subordinate_bus_number;
unsigned char secondary_bus_number;
unsigned char primary_bus_number;
unsigned short secondary_status;
unsigned char io_limit;
unsigned char io_base;
unsigned short mem_limit;
unsigned short mem_base;
unsigned short prefetch_mem_limit;
unsigned short prefetch_mem_base;
} bg;
} bc;
#define _base0 bc.dv.dv_base0
#define _base1 bc.dv.dv_base1
#define _base2 bc.dv.dv_base2
#define _base3 bc.dv.dv_base3
#define _base4 bc.dv.dv_base4
#define _base5 bc.dv.dv_base5
#define _primary_bus_number bc.bg.primary_bus_number
#define _secondary_bus_number bc.bg.secondary_bus_number
#define _subordinate_bus_number bc.bg.subordinate_bus_number
#define _secondary_latency_timer bc.bg.secondary_latency_timer
#define _io_base bc.bg.io_base
#define _io_limit bc.bg.io_limit
#define _secondary_status bc.bg.secondary_status
#define _mem_base bc.bg.mem_base
#define _mem_limit bc.bg.mem_limit
#define _prefetch_mem_base bc.bg.prefetch_mem_base
#define _prefetch_mem_limit bc.bg.prefetch_mem_limit
unsigned long rsvd1;
unsigned long rsvd2;
unsigned long _baserom;
unsigned long rsvd3;
unsigned long rsvd4;
union {
unsigned long max_min_ipin_iline;
struct {
unsigned char max_lat;
unsigned char min_gnt;
unsigned char int_pin;
unsigned char int_line;
} mmii;
} mmii;
#define _max_min_ipin_iline mmii.max_min_ipin_iline
#define _int_line mmii.mmii.int_line
#define _int_pin mmii.mmii.int_pin
#define _min_gnt mmii.mmii.min_gnt
#define _max_lat mmii.mmii.max_lat
/* I don't know how accurate or standard this is (DHD) */
union {
unsigned long user_config;
struct {
unsigned char user_config_3;
unsigned char user_config_2;
unsigned char user_config_1;
unsigned char user_config_0;
} uc;
} uc;
#define _user_config uc.user_config
#define _user_config_0 uc.uc.user_config_0
#define _user_config_1 uc.uc.user_config_1
#define _user_config_2 uc.uc.user_config_2
#define _user_config_3 uc.uc.user_config_3
/* end of official PCI config space header */
unsigned long _pcibusidx;
unsigned long _pcinumbus;
unsigned long _pcibuses[16];
unsigned short _ioaddr; /* config type 1 - private I/O addr */
unsigned short _configtype; /* config type found */
unsigned long _cardnum; /* config type 2 - private card number */
};
#endif /* !defined(__powerpc__) */
#define MAX_DEV_PER_VENDOR_CFG1 64
#define MAX_PCI_DEVICES_PER_BUS 32
#define MAX_PCI_DEVICES 64
#define NF ((void (*)())NULL), { 0.0, 0, 0, NULL }
#define PCI_MULTIFUNC_DEV 0x80
#define PCI_ID_REG 0x00
#define PCI_CMD_STAT_REG 0x04
#define PCI_CLASS_REG 0x08
#define PCI_HEADER_MISC 0x0C
#define PCI_MAP_REG_START 0x10
#define PCI_MAP_ROM_REG 0x30
#define PCI_INTERRUPT_REG 0x3C
#define PCI_REG_USERCONFIG 0x40
static int pcibus=-1, pcicard=-1, pcifunc=-1 ;
/*static struct pci_device *pcidev=NULL ;*/
#if defined(__alpha__)
#define PCI_EN 0x00000000
#else
#define PCI_EN 0x80000000
#endif
#define PCI_MODE1_ADDRESS_REG 0xCF8
#define PCI_MODE1_DATA_REG 0xCFC
#define PCI_MODE2_ENABLE_REG 0xCF8
#ifdef PC98
#define PCI_MODE2_FORWARD_REG 0xCF9
#else
#define PCI_MODE2_FORWARD_REG 0xCFA
#endif
/* cpu depended stuff */
#ifndef CONFIG_SVGAHELPER
#if defined(__alpha__)
#include "sysdep/pci_alpha.c"
#elif defined(__ia64__)
#include "sysdep/pci_ia64.c"
#elif defined(__sparc__)
#include "sysdep/pci_sparc.c"
#elif defined( __arm32__ )
#include "sysdep/pci_arm32.c"
#elif defined(__powerpc__)
#include "sysdep/pci_powerpc.c"
#elif defined(__x86_64__) || defined(__sh__)
/* Nothing here right now */
#else
#include "sysdep/pci_x86.c"
#endif
#endif /*CONFIG_SVGAHELPER */
static pciinfo_t *pci_lst;
static void identify_card(struct pci_config_reg *pcr, int idx)
{
/* local overflow test */
if (idx>=MAX_PCI_DEVICES) return ;
pci_lst[idx].bus = pcibus ;
pci_lst[idx].card = pcicard ;
pci_lst[idx].func = pcifunc ;
pci_lst[idx].command = pcr->_status_command & 0xFFFF;
pci_lst[idx].vendor = pcr->_vendor ;
pci_lst[idx].device = pcr->_device ;
pci_lst[idx].base0 = 0xFFFFFFFF ;
pci_lst[idx].base1 = 0xFFFFFFFF ;
pci_lst[idx].base2 = 0xFFFFFFFF ;
pci_lst[idx].baserom = 0x000C0000 ;
if (pcr->_base0) pci_lst[idx].base0 = pcr->_base0 &
((pcr->_base0&0x1) ? 0xFFFFFFFC : 0xFFFFFFF0) ;
if (pcr->_base1) pci_lst[idx].base1 = pcr->_base1 &
((pcr->_base1&0x1) ? 0xFFFFFFFC : 0xFFFFFFF0) ;
if (pcr->_base2) pci_lst[idx].base2 = pcr->_base2 &
((pcr->_base2&0x1) ? 0xFFFFFFFC : 0xFFFFFFF0) ;
if (pcr->_baserom) pci_lst[idx].baserom = pcr->_baserom ;
}
/*main(int argc, char *argv[])*/
int pci_scan(pciinfo_t *pci_list,unsigned *num_pci)
{
unsigned int idx = 0;
struct pci_config_reg pcr;
int do_mode1_scan = 0;
#if !defined(__alpha__) && !defined(__powerpc__)
int do_mode2_scan = 0;
#endif
int func, hostbridges=0;
int ret = -1;
pci_lst = pci_list;
*num_pci = 0;
ret = enable_os_io();
if (ret != 0)
return ret;
if((pcr._configtype = pci_config_type()) == 0xFFFF) return ENODEV;
/* Try pci config 1 probe first */
if ((pcr._configtype == 1) || do_mode1_scan) {
/*printf("\nPCI probing configuration type 1\n");*/
pcr._ioaddr = 0xFFFF;
pcr._pcibuses[0] = 0;
pcr._pcinumbus = 1;
pcr._pcibusidx = 0;
do {
/*printf("Probing for devices on PCI bus %d:\n\n", pcr._pcibusidx);*/
for (pcr._cardnum = 0x0; pcr._cardnum < MAX_PCI_DEVICES_PER_BUS;
pcr._cardnum += 0x1) {
func = 0;
do { /* loop over the different functions, if present */
pcr._device_vendor = pci_get_vendor(pcr._pcibuses[pcr._pcibusidx], pcr._cardnum,
func);
if ((pcr._vendor == 0xFFFF) || (pcr._device == 0xFFFF))
break; /* nothing there */
/*printf("\npci bus 0x%x cardnum 0x%02x function 0x%04x: vendor 0x%04x device 0x%04x\n",
pcr._pcibuses[pcr._pcibusidx], pcr._cardnum, func,
pcr._vendor, pcr._device);*/
pcibus = pcr._pcibuses[pcr._pcibusidx];
pcicard = pcr._cardnum;
pcifunc = func;
pcr._status_command = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_CMD_STAT_REG);
pcr._class_revision = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_CLASS_REG);
pcr._bist_header_latency_cache = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_HEADER_MISC);
pcr._base0 = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_MAP_REG_START);
pcr._base1 = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_MAP_REG_START+4);
pcr._base2 = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_MAP_REG_START+8);
pcr._base3 = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_MAP_REG_START+0x0C);
pcr._base4 = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_MAP_REG_START+0x10);
pcr._base5 = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_MAP_REG_START+0x14);
pcr._baserom = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_MAP_ROM_REG);
pcr._max_min_ipin_iline = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_INTERRUPT_REG);
pcr._user_config = pci_config_read_long(pcr._pcibuses[pcr._pcibusidx],
pcr._cardnum,func,PCI_REG_USERCONFIG);
/* check for pci-pci bridges */
#define PCI_CLASS_MASK 0xff000000
#define PCI_SUBCLASS_MASK 0x00ff0000
#define PCI_CLASS_BRIDGE 0x06000000
#define PCI_SUBCLASS_BRIDGE_PCI 0x00040000
switch(pcr._class_revision & (PCI_CLASS_MASK|PCI_SUBCLASS_MASK)) {
case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_PCI:
if (pcr._secondary_bus_number > 0) {
pcr._pcibuses[pcr._pcinumbus++] = pcr._secondary_bus_number;
}
break;
case PCI_CLASS_BRIDGE:
if ( ++hostbridges > 1) {
pcr._pcibuses[pcr._pcinumbus] = pcr._pcinumbus;
pcr._pcinumbus++;
}
break;
default:
break;
}
if((func==0) && ((pcr._header_type & PCI_MULTIFUNC_DEV) == 0)) {
/* not a multi function device */
func = 8;
} else {
func++;
}
if (idx++ >= MAX_PCI_DEVICES)
continue;
identify_card(&pcr, (*num_pci)++);
} while( func < 8 );
}
} while (++pcr._pcibusidx < pcr._pcinumbus);
}
#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__sh__)
/* Now try pci config 2 probe (deprecated) */
if ((pcr._configtype == 2) || do_mode2_scan) {
outb(PCI_MODE2_ENABLE_REG, 0xF1);
outb(PCI_MODE2_FORWARD_REG, 0x00); /* bus 0 for now */
/*printf("\nPCI probing configuration type 2\n");*/
pcr._pcibuses[0] = 0;
pcr._pcinumbus = 1;
pcr._pcibusidx = 0;
idx = 0;
do {
for (pcr._ioaddr = 0xC000; pcr._ioaddr < 0xD000; pcr._ioaddr += 0x0100){
outb(PCI_MODE2_FORWARD_REG, pcr._pcibuses[pcr._pcibusidx]); /* bus 0 for now */
pcr._device_vendor = inl(pcr._ioaddr);
outb(PCI_MODE2_FORWARD_REG, 0x00); /* bus 0 for now */
if ((pcr._vendor == 0xFFFF) || (pcr._device == 0xFFFF))
continue;
if ((pcr._vendor == 0xF0F0) || (pcr._device == 0xF0F0))
continue; /* catch ASUS P55TP4XE motherboards */
/*printf("\npci bus 0x%x slot at 0x%04x, vendor 0x%04x device 0x%04x\n",
pcr._pcibuses[pcr._pcibusidx], pcr._ioaddr, pcr._vendor,
pcr._device);*/
pcibus = pcr._pcibuses[pcr._pcibusidx] ;
pcicard = pcr._ioaddr ; pcifunc = 0 ;
outb(PCI_MODE2_FORWARD_REG, pcr._pcibuses[pcr._pcibusidx]); /* bus 0 for now */
pcr._status_command = inl(pcr._ioaddr + 0x04);
pcr._class_revision = inl(pcr._ioaddr + 0x08);
pcr._bist_header_latency_cache = inl(pcr._ioaddr + 0x0C);
pcr._base0 = inl(pcr._ioaddr + 0x10);
pcr._base1 = inl(pcr._ioaddr + 0x14);
pcr._base2 = inl(pcr._ioaddr + 0x18);
pcr._base3 = inl(pcr._ioaddr + 0x1C);
pcr._base4 = inl(pcr._ioaddr + 0x20);
pcr._base5 = inl(pcr._ioaddr + 0x24);
pcr._baserom = inl(pcr._ioaddr + 0x30);
pcr._max_min_ipin_iline = inl(pcr._ioaddr + 0x3C);
pcr._user_config = inl(pcr._ioaddr + 0x40);
outb(PCI_MODE2_FORWARD_REG, 0x00); /* bus 0 for now */
/* check for pci-pci bridges (currently we only know Digital) */
if ((pcr._vendor == 0x1011) && (pcr._device == 0x0001))
if (pcr._secondary_bus_number > 0)
pcr._pcibuses[pcr._pcinumbus++] = pcr._secondary_bus_number;
if (idx++ >= MAX_PCI_DEVICES)
continue;
identify_card(&pcr, (*num_pci)++);
}
} while (++pcr._pcibusidx < pcr._pcinumbus);
outb(PCI_MODE2_ENABLE_REG, 0x00);
}
#endif /* !__alpha__ && !__powerpc__ && !__sh__ */
disable_os_io();
return 0 ;
}
#if !defined(ENOTSUP)
#if defined(EOPNOTSUPP)
#define ENOTSUP EOPNOTSUPP
#else
#warning "ENOTSUP nor EOPNOTSUPP defined!"
#endif
#endif
int pci_config_read(unsigned char bus, unsigned char dev, unsigned char func,
unsigned char cmd, int len, unsigned long *val)
{
int ret;
if (len != 4)
{
fprintf(stderr,"pci_config_read: Reading non-dword not supported!\n");
return ENOTSUP;
}
ret = enable_os_io();
if (ret != 0)
return ret;
ret = pci_config_read_long(bus, dev, func, cmd);
disable_os_io();
*val = ret;
return 0;
}
int enable_app_io( void )
{
return enable_os_io();
}
int disable_app_io( void )
{
return disable_os_io();
}
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