/* This file is based on: $XFree86: xc/programs/Xserver/hw/xfree86/etc/scanpci.c,v 3.34.2.17 1998/11/10 11:55:40 dawes Exp $ Modified for readability by Nick Kurshev */ /* * Copyright 1995 by Robin Cutshaw * * 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 #ifdef __i386__ //#include doesn't exist on libc5 systems int iopl(); #else #if !defined(__sparc__) && !defined(__powerpc__) && !defined(__x86_64__) #include #endif #endif #ifdef __sh__ #define iopl(x) 1 #endif #include "config.h" #ifdef CONFIG_DHAHELPER #include int dhahelper_initialized = 0; int dhahelper_fd = 0; #endif #ifdef CONFIG_SVGAHELPER #include #ifdef __linux__ #include #endif #include #ifndef SVGALIB_HELPER_IOC_MAGIC /* svgalib 1.9.18+ compatibility ::atmos */ #define SVGALIB_HELPER_IOCGPCIINL SVGAHELPER_PCIINL #endif int svgahelper_initialized = 0; int svgahelper_fd = 0; static int pci_config_type(void) { return 1; } static long pci_config_read_long( unsigned char bus, unsigned char dev, int func, unsigned cmd) { pcic_t p; p.address = cmd; p.pcipos = (bus << 8) | dev | (func << 5); if (ioctl(svgahelper_fd, SVGALIB_HELPER_IOCGPCIINL, &p)) return -1; return p.val; } static int pci_get_vendor( unsigned char bus, unsigned char dev, int func) { return pci_config_read_long(bus, dev, func, 0); } #endif /* CONFIG_SVGAHELPER */ static __inline__ int enable_os_io(void) { #ifdef CONFIG_SVGAHELPER svgahelper_fd = open(DEV_SVGA, O_RDWR); if (svgahelper_fd > 0) { svgahelper_initialized = 1; return 0; } svgahelper_initialized = -1; #endif #ifdef CONFIG_DHAHELPER dhahelper_fd = open("/dev/dhahelper", O_RDWR); if (dhahelper_fd > 0) { dhahelper_initialized = 1; return 0; } dhahelper_initialized = -1; #endif #if defined(__powerpc__) && defined(__linux__) /* should be fixed? */ #else if (iopl(3) != 0) return errno; #endif return 0; } static __inline__ int disable_os_io(void) { #ifdef CONFIG_SVGAHELPER if (svgahelper_initialized == 1) close(svgahelper_fd); else #endif #ifdef CONFIG_DHAHELPER if (dhahelper_initialized == 1) close(dhahelper_fd); else #endif #if defined(__powerpc__) && defined(__linux__) /* should be fixed? */ #else if (iopl(0) != 0) return errno; #endif return 0; } #if (defined(__powerpc__) || defined(__sparc__) || defined(__sparc64__) \ || defined(__x86_64__) || defined(__sh__)) && defined(__linux__) && !defined(CONFIG_SVGAHELPER) #define CONFIG_PCI_LINUX_PROC #endif #if defined(CONFIG_PCI_LINUX_PROC) static int pci_config_type( void ) { return 1; } /* pci operations for (powerpc) Linux questions, suggestions etc: mplayer-dev-eng@mplayerhq.hu, colin@colino.net*/ #include //#include #include #include "libavutil/common.h" #include "mpbswap.h" static int pci_get_vendor( unsigned char bus, unsigned char dev, int func) { int retval; char path[100]; int fd; short vendor, device; sprintf(path,"/proc/bus/pci/%02d/%02x.0", bus, dev); fd = open(path,O_RDONLY|O_SYNC); if (fd == -1) { retval=0xFFFF; } else if (pread(fd, &vendor, 2, PCI_VENDOR_ID) == 2 && pread(fd, &device, 2, PCI_DEVICE_ID) == 2) { vendor = le2me_16(vendor); device = le2me_16(device); retval = vendor + (device<<16); /*no worries about byte order, all ppc are bigendian*/ } else { retval = 0xFFFF; } if (fd > 0) { close(fd); } return retval; } static long pci_config_read_long( unsigned char bus, unsigned char dev, int func, unsigned cmd) { long retval; char path[100]; int fd; sprintf(path,"/proc/bus/pci/%02d/%02x.0", bus, dev); fd = open(path,O_RDONLY|O_SYNC); if (fd == -1) { retval=0; } else if (pread(fd, &retval, 4, cmd) == 4) { retval = le2me_32(retval); } else { retval = 0; } if (fd > 0) { close(fd); } return retval; } #endif /* defined(CONFIG_PCI_LINUX_PROC) */