/* (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 "libdha.h" #include <errno.h> #include <string.h> #include <stdio.h> #ifdef __unix__ #include <unistd.h> #endif #include "AsmMacros.h" /* OS depended stuff */ #if defined (linux) #include "sysdep/pci_linux.c" #elif defined (__FreeBSD__) #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" #endif #if 0 #if defined(__SUNPRO_C) || defined(sun) || defined(__sun) #include <sys/psw.h> #else #include <sys/seg.h> #endif #include <sys/v86.h> #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 #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 #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" #else #include "sysdep/pci_x86.c" #endif #endif static int pcicards=0 ; static pciinfo_t *pci_lst; static void identify_card(struct pci_config_reg *pcr) { if (pcicards>=MAX_PCI_DEVICES) return ; pci_lst[pcicards].bus = pcibus ; pci_lst[pcicards].card = pcicard ; pci_lst[pcicards].func = pcifunc ; pci_lst[pcicards].vendor = pcr->_vendor ; pci_lst[pcicards].device = pcr->_device ; pci_lst[pcicards].base0 = 0xFFFFFFFF ; pci_lst[pcicards].base1 = 0xFFFFFFFF ; pci_lst[pcicards].base2 = 0xFFFFFFFF ; pci_lst[pcicards].baserom = 0x000C0000 ; if (pcr->_base0) pci_lst[pcicards].base0 = pcr->_base0 & ((pcr->_base0&0x1) ? 0xFFFFFFFC : 0xFFFFFFF0) ; if (pcr->_base1) pci_lst[pcicards].base1 = pcr->_base1 & ((pcr->_base1&0x1) ? 0xFFFFFFFC : 0xFFFFFFF0) ; if (pcr->_base2) pci_lst[pcicards].base2 = pcr->_base2 & ((pcr->_base2&0x1) ? 0xFFFFFFFC : 0xFFFFFFF0) ; if (pcr->_baserom) pci_lst[pcicards].baserom = pcr->_baserom ; pcicards++; } /*main(int argc, char *argv[])*/ int pci_scan(pciinfo_t *pci_list,unsigned *num_pci) { unsigned int idx; struct pci_config_reg pcr; int do_mode1_scan = 0, do_mode2_scan = 0; int func, hostbridges=0; int ret = -1; pci_lst = pci_list; 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; idx = 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); } while( func < 8 ); } } while (++pcr._pcibusidx < pcr._pcinumbus); } #if !defined(__alpha__) && !defined(__powerpc__) /* 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); } } while (++pcr._pcibusidx < pcr._pcinumbus); outb(PCI_MODE2_ENABLE_REG, 0x00); } #endif /* __alpha__ */ disable_os_io(); *num_pci = pcicards; 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) { printf("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(); }