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removed leading _ from dio functions and types; added small explanation of

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each function


git-svn-id: svn://svn.cc65.org/cc65/trunk@436 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cpg 2000-11-16 21:38:00 +00:00
parent 16d52709b0
commit e9a67d0abd
1 changed files with 41 additions and 24 deletions
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65
include/dio.h
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@ -31,41 +31,58 @@
#ifndef _DIO_H
#define _DIO_H
typedef unsigned char _driveid_t;
typedef unsigned int _sectnum_t;
typedef unsigned int _sectsize_t;
typedef struct __dhandle_t *_dhandle_t;
typedef unsigned char driveid_t;
typedef unsigned int sectnum_t;
typedef unsigned int sectsize_t;
typedef struct __dhandle_t *dhandle_t;
typedef struct {
unsigned char head;
unsigned track;
unsigned sector;
} _dio_phys_pos;
} dio_phys_pos;
#ifdef __ATARI__
#define _dio_query_sectsize(x) ((_sectsize_t)128)
#define dio_query_sectsize(x) ((_sectsize_t)128)
#else
#define _dio_query_sectsize(x) ((_sectsize_t)256)
#define dio_query_sectsize(x) ((_sectsize_t)256)
#endif
/* queries sector size, currently hardcoded */
extern _dhandle_t __fastcall__ _dio_open(_driveid_t drive_id);
extern unsigned char __fastcall__ _dio_close(_dhandle_t handle);
extern unsigned char __fastcall__ _dio_read(_dhandle_t handle,
_sectnum_t sect_num,
void *buffer);
extern unsigned char __fastcall__ _dio_write(_dhandle_t handle,
_sectnum_t sect_num,
const void *buffer);
extern unsigned char __fastcall__ _dio_write_verify(_dhandle_t handle,
_sectnum_t sect_num,
const void *buffer);
extern dhandle_t __fastcall__ dio_open(driveid_t drive_id);
/* open drive for subsequent dio access */
extern unsigned char __fastcall__ _dio_phys_to_log(_dhandle_t handle,
const _dio_phys_pos *physpos, /* input */
_sectnum_t *sectnum); /* output */
extern unsigned char __fastcall__ _dio_log_to_phys(_dhandle_t handle,
_dio_phys_pos *physpos, /* output */
const _sectnum_t *sectnum); /* input */
extern unsigned char __fastcall__ dio_close(dhandle_t handle);
/* close drive */
extern unsigned char __fastcall__ dio_read(dhandle_t handle,
sectnum_t sect_num,
void *buffer);
/* read sector <sect_num> from drive <handle> to memory at <buffer> */
/* the number of bytes transferred depends on the sector size */
extern unsigned char __fastcall__ dio_write(dhandle_t handle,
sectnum_t sect_num,
const void *buffer);
/* write memory at <buffer> to sector <sect_num> on drive <handle>, no verify */
/* the number of bytes transferred depends on the sector size */
extern unsigned char __fastcall__ dio_write_verify(dhandle_t handle,
sectnum_t sect_num,
const void *buffer);
/* write memory at <buffer> to sector <sect_num> on drive <handle>, verify after write */
/* the number of bytes transferred depends on the sector size */
extern unsigned char __fastcall__ dio_phys_to_log(dhandle_t handle,
const dio_phys_pos *physpos, /* input */
sectnum_t *sectnum); /* output */
/* convert physical sector address (head/track/sector) to logical sector number */
extern unsigned char __fastcall__ dio_log_to_phys(dhandle_t handle,
const sectnum_t *sectnum, /* input */
dio_phys_pos *physpos); /* output */
/* convert logical sector number to physical sector address (head/track/sector) */
#endif /* #ifndef _DIO_H */