lib/internal.h

   1 /*
   2  *      $Id: internal.h,v 1.6 2002/03/30 15:39:25 mj Exp $
   3  *
   4  *      The PCI Library -- Internal Include File
   5  *
   6  *      Copyright (c) 1997--2000 Martin Mares <mj@ucw.cz>
   7  *
   8  *      Can be freely distributed and used under the terms of the GNU GPL.
   9  */
  10
  11 #include "pci.h"
  12
  13 #ifdef __GNUC__
  14 #define UNUSED __attribute__((unused))
  15 #else
  16 #define UNUSED
  17 #define inline
  18 #endif
  19
  20 #ifdef HAVE_PM_LINUX_BYTEORDER_H
  21
  22 #include <asm/byteorder.h>
  23 #define cpu_to_le16 __cpu_to_le16
  24 #define cpu_to_le32 __cpu_to_le32
  25 #define le16_to_cpu __le16_to_cpu
  26 #define le32_to_cpu __le32_to_cpu
  27
  28 #else
  29
  30 #ifdef OS_LINUX
  31 #include <endian.h>
  32 #define BYTE_ORDER __BYTE_ORDER
  33 #define BIG_ENDIAN __BIG_ENDIAN
  34 #endif
  35
  36 #ifdef OS_FREEBSD
  37 #include <sys/types.h>
  38 #endif
  39
  40 #if BYTE_ORDER == BIG_ENDIAN
  41 #define cpu_to_le16 swab16
  42 #define cpu_to_le32 swab32
  43 #define le16_to_cpu swab16
  44 #define le32_to_cpu swab32
  45
  46 static inline word swab16(word w)
  47 {
  48   return (w << 8) | ((w >> 8) & 0xff);
  49 }
  50
  51 static inline u32 swab32(u32 w)
  52 {
  53   return ((w & 0xff000000) >> 24) |
  54          ((w & 0x00ff0000) >> 8) |
  55          ((w & 0x0000ff00) << 8)  |
  56          ((w & 0x000000ff) << 24);
  57 }
  58 #else
  59 #define cpu_to_le16(x) (x)
  60 #define cpu_to_le32(x) (x)
  61 #define le16_to_cpu(x) (x)
  62 #define le32_to_cpu(x) (x)
  63 #endif
  64
  65 #endif
  66
  67 struct pci_methods {
  68   char *name;
  69   void (*config)(struct pci_access *);
  70   int (*detect)(struct pci_access *);
  71   void (*init)(struct pci_access *);
  72   void (*cleanup)(struct pci_access *);
  73   void (*scan)(struct pci_access *);
  74   int (*fill_info)(struct pci_dev *, int flags);
  75   int (*read)(struct pci_dev *, int pos, byte *buf, int len);
  76   int (*write)(struct pci_dev *, int pos, byte *buf, int len);
  77   void (*init_dev)(struct pci_dev *);
  78   void (*cleanup_dev)(struct pci_dev *);
  79 };
  80
  81 void pci_generic_scan_bus(struct pci_access *, byte *busmap, int bus);
  82 void pci_generic_scan(struct pci_access *);
  83 int pci_generic_fill_info(struct pci_dev *, int flags);
  84 int pci_generic_block_read(struct pci_dev *, int pos, byte *buf, int len);
  85 int pci_generic_block_write(struct pci_dev *, int pos, byte *buf, int len);
  86
  87 void *pci_malloc(struct pci_access *, int);
  88 void pci_mfree(void *);
  89
  90 struct pci_dev *pci_alloc_dev(struct pci_access *);
  91 int pci_link_dev(struct pci_access *, struct pci_dev *);
  92
  93 extern struct pci_methods pm_intel_conf1, pm_intel_conf2, pm_linux_proc,
  94   pm_syscalls, pm_fbsd_device, pm_aix_device, pm_dump;