workbench/devs/networks/etherlink3/io.h

   1 /*
   2
   3 Copyright (C) 2004,2005 Neil Cafferkey
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful, but
  11 WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13 General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18 MA 02111-1307, USA.
  19
  20 */
  21
  22 #ifndef IO_H
  23 #define IO_H
  24
  25
  26 #include <exec/types.h>
  27 #include <utility/tagitem.h>
  28
  29 #include "endian.h"
  30
  31
  32 /* I/O tags */
  33
  34 #define IOTAG_ByteIn (TAG_USER + 0)
  35 #define IOTAG_WordIn (TAG_USER + 1)
  36 #define IOTAG_LongIn (TAG_USER + 2)
  37 #define IOTAG_QuadIn (TAG_USER + 3)
  38 #define IOTAG_ByteOut (TAG_USER + 4)
  39 #define IOTAG_WordOut (TAG_USER + 5)
  40 #define IOTAG_LongOut (TAG_USER + 6)
  41 #define IOTAG_QuadOut (TAG_USER + 7)
  42 #define IOTAG_BytesIn (TAG_USER + 8)
  43 #define IOTAG_WordsIn (TAG_USER + 9)
  44 #define IOTAG_LongsIn (TAG_USER + 10)
  45 #define IOTAG_QuadsIn (TAG_USER + 11)
  46 #define IOTAG_BytesOut (TAG_USER + 12)
  47 #define IOTAG_WordsOut (TAG_USER + 13)
  48 #define IOTAG_LongsOut (TAG_USER + 14)
  49 #define IOTAG_QuadsOut (TAG_USER + 15)
  50 #define IOTAG_BEWordIn (TAG_USER + 16)
  51 #define IOTAG_BELongIn (TAG_USER + 17)
  52 #define IOTAG_BEQuadIn (TAG_USER + 18)
  53 #define IOTAG_BEWordOut (TAG_USER + 19)
  54 #define IOTAG_BELongOut (TAG_USER + 20)
  55 #define IOTAG_BEQuadOut (TAG_USER + 21)
  56 #define IOTAG_BEWordsIn (TAG_USER + 22)
  57 #define IOTAG_BELongsIn (TAG_USER + 23)
  58 #define IOTAG_BEQuadsIn (TAG_USER + 24)
  59 #define IOTAG_BEWordsOut (TAG_USER + 25)
  60 #define IOTAG_BELongsOut (TAG_USER + 26)
  61 #define IOTAG_BEQuadsOut (TAG_USER + 27)
  62 #define IOTAG_LEWordIn (TAG_USER + 28)
  63 #define IOTAG_LELongIn (TAG_USER + 29)
  64 #define IOTAG_LEQuadIn (TAG_USER + 30)
  65 #define IOTAG_LEWordOut (TAG_USER + 31)
  66 #define IOTAG_LELongOut (TAG_USER + 32)
  67 #define IOTAG_LEQuadOut (TAG_USER + 33)
  68 #define IOTAG_LEWordsIn (TAG_USER + 34)
  69 #define IOTAG_LELongsIn (TAG_USER + 35)
  70 #define IOTAG_LEQuadsIn (TAG_USER + 36)
  71 #define IOTAG_LEWordsOut (TAG_USER + 37)
  72 #define IOTAG_LELongsOut (TAG_USER + 38)
  73 #define IOTAG_LEQuadsOut (TAG_USER + 39)
  74 #define IOTAG_AllocDMAMem (TAG_USER + 40)
  75 #define IOTAG_FreeDMAMem (TAG_USER + 41)
  76
  77
  78 /* I/O macros */
  79
  80 #ifdef __i386__
  81
  82 #define BYTEIN(address) \
  83 ({ \
  84    UBYTE _BYTEIN_value; \
  85    __asm volatile ("inb %w1,%0":"=a" (_BYTEIN_value):"Nd" (address)); \
  86    _BYTEIN_value; \
  87 })
  88
  89 #define WORDIN(address) \
  90 ({ \
  91    UWORD _WORDIN_value; \
  92    __asm volatile ("inw %w1,%0":"=a" (_WORDIN_value):"Nd" (address)); \
  93    _WORDIN_value; \
  94 })
  95
  96 #define LONGIN(address) \
  97 ({ \
  98    ULONG _LONGIN_value; \
  99    __asm volatile ("inl %w1,%0":"=a" (_LONGIN_value):"Nd" (address)); \
 100    _LONGIN_value; \
 101 })
 102
 103 #define BYTEOUT(address, value) \
 104 ({ \
 105    __asm volatile ("outb %b0,%w1": :"a" (value), "Nd" (address)); \
 106 })
 107
 108 #define WORDOUT(address, value) \
 109 ({ \
 110    __asm volatile ("outw %w0,%w1": :"a" (value), "Nd" (address)); \
 111 })
 112
 113 #define LONGOUT(address, value) \
 114 ({ \
 115    __asm volatile ("outl %0,%w1": :"a" (value), "Nd" (address)); \
 116 })
 117
 118 #else
 119
 120 #define BYTEIN(address) \
 121    (*((volatile UBYTE *)(address)))
 122
 123 #define WORDIN(address) \
 124    (*((volatile UWORD *)(address)))
 125
 126 #define LONGIN(address) \
 127    (*((volatile ULONG *)(address)))
 128
 129 #define BYTEOUT(address, value) \
 130    *((volatile UBYTE *)(address)) = (value)
 131
 132 #define WORDOUT(address, value) \
 133    *((volatile UWORD *)(address)) = (value)
 134
 135 #define LONGOUT(address, value) \
 136    *((volatile ULONG *)(address)) = (value)
 137
 138 #endif
 139
 140 #define WORDSIN(address, data, count) \
 141    ({ \
 142       ULONG _WORDSIN_i = (count); \
 143       UWORD *_WORDSIN_p = (data); \
 144       while(_WORDSIN_i-- != 0) \
 145          *_WORDSIN_p++ = WORDIN(address); \
 146       _WORDSIN_p; \
 147    })
 148
 149 #define LONGSIN(address, data, count) \
 150    ({ \
 151       ULONG _LONGSIN_i = (count); \
 152       ULONG *_LONGSIN_p = (data); \
 153       while(_LONGSIN_i-- != 0) \
 154          *_LONGSIN_p++ = LONGIN(address); \
 155       _LONGSIN_p; \
 156    })
 157
 158 #define WORDSOUT(address, data, count) \
 159    do \
 160    { \
 161       ULONG _WORDSOUT_i = (count); \
 162       const UWORD *_WORDSOUT_p = (data); \
 163       while(_WORDSOUT_i-- != 0) \
 164          WORDOUT(address, *_WORDSOUT_p++); \
 165    } \
 166    while(0)
 167
 168 #define LONGSOUT(address, data, count) \
 169    do \
 170    { \
 171       ULONG _LONGSOUT_i = (count); \
 172       const ULONG *_LONGSOUT_p = (data); \
 173       while(_LONGSOUT_i-- != 0) \
 174          LONGOUT(address, *_LONGSOUT_p++); \
 175    } \
 176    while(0)
 177
 178 #define BEWORDOUT(address, value) \
 179    WORDOUT(address, MakeBEWord(value))
 180
 181 #define LEWORDIN(address) \
 182    LEWord(WORDIN(address))
 183
 184 #define LEWORDOUT(address, value) \
 185    WORDOUT(address, MakeLEWord(value))
 186
 187 #define LELONGIN(address) \
 188    LELong(LONGIN(address))
 189
 190 #define LELONGOUT(address, value) \
 191    LONGOUT(address, MakeLELong(value))
 192
 193 #define LEWORDSIN(address, data, count) \
 194    ({ \
 195       ULONG _LEWORDSIN_i = (count); \
 196       UWORD *_LEWORDSIN_p = (data); \
 197       while(_LEWORDSIN_i-- != 0) \
 198          *_LEWORDSIN_p++ = LEWORDIN(address); \
 199       _LEWORDSIN_p; \
 200    })
 201
 202
 203 #endif