lib/internal.h

   1 /*
   2  *      The PCI Library -- Internal Include File
   3  *
   4  *      Copyright (c) 1997--2003 Martin Mares <mj@ucw.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 #include "pci.h"
  10
  11 #ifdef __GNUC__
  12 #define UNUSED __attribute__((unused))
  13 #else
  14 #define UNUSED
  15 #define inline
  16 #endif
  17
  18 #ifdef HAVE_PM_LINUX_BYTEORDER_H
  19
  20 #include <asm/byteorder.h>
  21 #define cpu_to_le16 __cpu_to_le16
  22 #define cpu_to_le32 __cpu_to_le32
  23 #define le16_to_cpu __le16_to_cpu
  24 #define le32_to_cpu __le32_to_cpu
  25
  26 #else
  27
  28 #ifdef OS_LINUX
  29 #include <endian.h>
  30 #define BYTE_ORDER __BYTE_ORDER
  31 #define BIG_ENDIAN __BIG_ENDIAN
  32 #endif
  33
  34 #ifdef OS_FREEBSD
  35 #include <sys/types.h>
  36 #endif
  37
  38 #ifdef OS_SunOS
  39 #include <sys/byteorder.h>
  40 #define BIG_ENDIAN 4321
  41 #ifdef _LITTLE_ENDIAN
  42 #define BYTE_ORDER 1234
  43 #else
  44 #define BYTE_ORDER 4321
  45 #endif
  46 #endif
  47
  48 #if BYTE_ORDER == BIG_ENDIAN
  49 #define cpu_to_le16 swab16
  50 #define cpu_to_le32 swab32
  51 #define le16_to_cpu swab16
  52 #define le32_to_cpu swab32
  53
  54 static inline word swab16(word w)
  55 {
  56   return (w << 8) | ((w >> 8) & 0xff);
  57 }
  58
  59 static inline u32 swab32(u32 w)
  60 {
  61   return ((w & 0xff000000) >> 24) |
  62          ((w & 0x00ff0000) >> 8) |
  63          ((w & 0x0000ff00) << 8)  |
  64          ((w & 0x000000ff) << 24);
  65 }
  66 #else
  67 #define cpu_to_le16(x) (x)
  68 #define cpu_to_le32(x) (x)
  69 #define le16_to_cpu(x) (x)
  70 #define le32_to_cpu(x) (x)
  71 #endif
  72
  73 #endif
  74
  75 struct pci_methods {
  76   char *name;
  77   void (*config)(struct pci_access *);
  78   int (*detect)(struct pci_access *);
  79   void (*init)(struct pci_access *);
  80   void (*cleanup)(struct pci_access *);
  81   void (*scan)(struct pci_access *);
  82   int (*fill_info)(struct pci_dev *, int flags);
  83   int (*read)(struct pci_dev *, int pos, byte *buf, int len);
  84   int (*write)(struct pci_dev *, int pos, byte *buf, int len);
  85   void (*init_dev)(struct pci_dev *);
  86   void (*cleanup_dev)(struct pci_dev *);
  87 };
  88
  89 void pci_generic_scan_bus(struct pci_access *, byte *busmap, int bus);
  90 void pci_generic_scan(struct pci_access *);
  91 int pci_generic_fill_info(struct pci_dev *, int flags);
  92 int pci_generic_block_read(struct pci_dev *, int pos, byte *buf, int len);
  93 int pci_generic_block_write(struct pci_dev *, int pos, byte *buf, int len);
  94
  95 void *pci_malloc(struct pci_access *, int);
  96 void pci_mfree(void *);
  97
  98 struct pci_dev *pci_alloc_dev(struct pci_access *);
  99 int pci_link_dev(struct pci_access *, struct pci_dev *);
 100
 101 extern struct pci_methods pm_intel_conf1, pm_intel_conf2, pm_linux_proc,
 102   pm_fbsd_device, pm_aix_device, pm_nbsd_libpci, pm_dump, pm_linux_sysfs;