git.sur5r.net Git - cc65/blob - include/dio.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                   dio.h                                   */
   4 /*                                                                           */
   5 /*                       Low-Level diskette I/O functions                    */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2000 Christian Groessler <cpg@aladdin.de>                             */
  10 /*                                                                           */
  11 /*                                                                           */
  12 /* This software is provided 'as-is', without any expressed or implied       */
  13 /* warranty.  In no event will the authors be held liable for any damages    */
  14 /* arising from the use of this software.                                    */
  15 /*                                                                           */
  16 /* Permission is granted to anyone to use this software for any purpose,     */
  17 /* including commercial applications, and to alter it and redistribute it    */
  18 /* freely, subject to the following restrictions:                            */
  19 /*                                                                           */
  20 /* 1. The origin of this software must not be misrepresented; you must not   */
  21 /*    claim that you wrote the original software. If you use this software   */
  22 /*    in a product, an acknowledgment in the product documentation would be  */
  23 /*    appreciated but is not required.                                       */
  24 /* 2. Altered source versions must be plainly marked as such, and must not   */
  25 /*    be misrepresented as being the original software.                      */
  26 /* 3. This notice may not be removed or altered from any source              */
  27 /*    distribution.                                                          */
  28 /*                                                                           */
  29 /*****************************************************************************/
  30
  31 #ifndef _DIO_H
  32 #define _DIO_H
  33
  34 typedef unsigned char _driveid_t;
  35 typedef unsigned int  _sectnum_t;
  36 typedef unsigned int  _sectsize_t;
  37
  38
  39 #ifdef __ATARI__
  40 #define _dio_query_sectsize(x) ((_sectsize_t)128)
  41 #else
  42 #define _dio_query_sectsize(x) ((_sectsize_t)256)
  43 #endif
  44
  45 extern unsigned char __fastcall__ _dio_open  (_driveid_t drive_id);
  46 extern unsigned char __fastcall__ _dio_close (_driveid_t drive_id);
  47 extern unsigned char __fastcall__ _dio_format(_driveid_t drive_id,
  48                                               unsigned int format);
  49 extern unsigned char __fastcall__ _dio_read(_driveid_t drive_id,
  50                                             _sectnum_t sect_num,
  51                                             void *buffer);
  52 extern unsigned char __fastcall__ _dio_write(_driveid_t drive_id,
  53                                              _sectnum_t sect_num,
  54                                              const void *buffer);
  55 extern unsigned char __fastcall__ _dio_write_verify(_driveid_t drive_id,
  56                                                     _sectnum_t sect_num,
  57                                                     const void *buffer);
  58
  59
  60 extern _sectnum_t __fastcall__ _dio_chs_to_snum(unsigned int cyl,
  61                                                 unsigned int head,
  62                                                 unsigned int sector);
  63 extern void       __fastcall__ _dio_snum_to_chs(_sectnum_t sect_num,
  64                                                 unsigned int *cyl,
  65                                                 unsigned int *head,
  66                                                 unsigned int *sector);
  67
  68 #endif /* #ifndef _DIO_H */