sys/arch/x68k/stand/libiocs/scsi.h

   1 /*
   2  * X680x0 ROM IOCS access definitions.
   3  *  based on Project C Library X68000 Programing Interface Definition
   4  *           /usr/include/sys/scsi.h
   5  *  $Id: scsi.h,v 1.2 2005/12/24 20:07:41 perry Exp $
   6  */
   7 /*
   8  * PROJECT C Library, X68000 PROGRAMMING INTERFACE DEFINITION
   9  * --------------------------------------------------------------------
  10  * This file is written by the Project C Library Group,  and completely
  11  * in public domain. You can freely use, copy, modify, and redistribute
  12  * the whole contents, without this notice.
  13  * --------------------------------------------------------------------
  14  * from RCS Id: scsi.h,v 1.3 1994/07/31 17:21:50 mura Exp
  15  */
  16
  17 #ifndef __INLINE_SCSI_H__
  18 #define __INLINE_SCSI_H__
  19
  20 struct _readcap {
  21     unsigned long block;
  22     unsigned long size;
  23 };
  24
  25 struct _inquiry {
  26     unsigned char unit;
  27     unsigned char info;
  28     unsigned char ver;
  29     unsigned char reserve;
  30     unsigned char size;
  31     unsigned char buff[0];
  32 };
  33
  34 static inline int _scsi_inquiry (int n, int id, struct _inquiry *buf)
  35 {
  36     register int reg_d0 __asm ("%d0");
  37
  38     __asm volatile ("moveml %%d3-%%d4,%%sp@-\n\t"
  39                       "movel %2,%%d3\n\t"
  40                       "movel %3,%%d4\n\t"
  41                       "movel %4,%%a1\n\t"
  42                       "movel #0x20,%%d1\n\t"
  43                       "movel #0xf5,%%d0\n\t"
  44                       "trap #15\n\t"
  45                       "moveml %%sp@+,%%d3-%%d4"
  46                         : "=d" (reg_d0), "=m" (*buf)
  47                         : "ri" (n), "ri" (id), "g" ((int) buf)
  48                         : "%d1", "%d2", "%a1");
  49
  50     return reg_d0;
  51 }
  52 static inline int _scsi_modesense (int page, int n, int id, void *buf)
  53 {
  54     register int reg_d0 __asm ("%d0");
  55
  56     __asm volatile ("moveml %%d3-%%d4,%%sp@-\n\t"
  57                       "movel %2,%%d2\n\t"
  58                       "movel %3,%%d3\n\t"
  59                       "movel %4,%%d4\n\t"
  60                       "movel %5,%%a1\n\t"
  61                       "movel #0x29,%%d1\n\t"
  62                       "movel #0xf5,%%d0\n\t"
  63                       "trap #15\n\t"
  64                       "moveml %%sp@+,%%d3-%%d4"
  65                         : "=d" (reg_d0), "=m" (*(char*) buf)
  66                         : "ri" (page), "ri" (n), "ri" (id), "g" ((int) buf)
  67                         : "%d1", "%d2", "%a1");
  68
  69     return reg_d0;
  70 }
  71
  72 static inline int _scsi_read (int pos, int blk, int id, int size, void *buf)
  73 {
  74     register int reg_d0 __asm ("%d0");
  75
  76     __asm volatile ("moveml %%d3-%%d5,%%sp@-\n\t"
  77                       "movel %2,%%d2\n\t"
  78                       "movel %3,%%d3\n\t"
  79                       "movel %4,%%d4\n\t"
  80                       "movel %5,%%d5\n\t"
  81                       "movel %6,%%a1\n\t"
  82                       "movel #0x21,%%d1\n\t"
  83                       "movel #0xf5,%%d0\n\t"
  84                       "trap #15\n\t"
  85                       "moveml %%sp@+,%%d3-%%d5"
  86                         : "=d" (reg_d0), "=m" (*(char*) buf)
  87                         : "ri" (pos), "ri" (blk), "ri" (id), "ri" (size), "g" ((int) buf)
  88                         : "%d1", "%d2", "%a1");
  89
  90     return reg_d0;
  91 }
  92
  93 static inline int _scsi_readcap (int id, struct _readcap *buf)
  94 {
  95     register int reg_d0 __asm ("%d0");
  96
  97     __asm volatile ("moveml %%d4,%%sp@-\n\t"
  98                       "movel %2,%%d4\n\t"
  99                       "movel %3,%%a1\n\t"
 100                       "movel #0x25,%%d1\n\t"
 101                       "movel #0xf5,%%d0\n\t"
 102                       "trap #15\n\t"
 103                       "moveml %%sp@+,%%d4"
 104                         : "=d" (reg_d0), "=m" (*buf)
 105                         : "ri" (id), "g" ((int) buf)
 106                         : "%d1", "%a1");
 107
 108     return reg_d0;
 109 }
 110
 111 static inline int _scsi_seek (int pos, int id)
 112 {
 113     register int reg_d0 __asm ("%d0");
 114
 115     __asm volatile ("moveml %%d4,%%sp@-\n\t"
 116                       "movel %1,%%d2\n\t"
 117                       "movel %2,%%d4\n\t"
 118                       "movel #0x2d,%%d1\n\t"
 119                       "movel #0xf5,%%d0\n\t"
 120                       "trap #15\n\t"
 121                       "moveml %%sp@+,%%d4"
 122                         : "=d" (reg_d0)
 123                         : "ri" (pos), "ri" (id)
 124                         : "%d1", "%d2");
 125
 126     return reg_d0;
 127 }
 128
 129 static inline int _scsi_testunit (int id)
 130 {
 131     register int reg_d0 __asm ("%d0");
 132
 133     __asm volatile ("moveml %%d4,%%sp@-\n\t"
 134                       "movel %1,%%d4\n\t"
 135                       "movel #0x24,%%d1\n\t"
 136                       "movel #0xf5,%%d0\n\t"
 137                       "trap #15\n\t"
 138                       "moveml %%sp@+,%%d4"
 139                         : "=d" (reg_d0)
 140                         : "ri" (id)
 141                         : "%d1");
 142
 143     return reg_d0;
 144 }
 145
 146 static inline int _scsi_write (int pos, int blk, int id, int size, void *buf)
 147 {
 148     register int reg_d0 __asm ("%d0");
 149
 150     __asm volatile ("moveml %%d3-%%d5,%%sp@-\n\t"
 151                       "movel %1,%%d2\n\t"
 152                       "movel %2,%%d3\n\t"
 153                       "movel %3,%%d4\n\t"
 154                       "movel %4,%%d5\n\t"
 155                       "movel %5,%%a1\n\t"
 156                       "movel #0x22,%%d1\n\t"
 157                       "movel #0xf5,%%d0\n\t"
 158                       "trap #15\n\t"
 159                       "moveml %%sp@+,%%d3-%%d5"
 160                         : "=d" (reg_d0)
 161                         : "ri" (pos), "ri" (blk), "ri" (id), "ri" (size), "g" ((int) buf)
 162                         : "%d1", "%d2", "%a1");
 163
 164     return reg_d0;
 165 }
 166
 167 static inline void _scsi_reset (void)
 168 {
 169     __asm volatile ("movel #0,%%d1\n\t"
 170                       "movel #0xf5,%%d0\n\t"
 171                       "trap #15\n\t"
 172                         :
 173                         :
 174                         : "%d0", "%d1");
 175 }
 176
 177 #endif