f011_core.h

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/* F011 FDC (used by Commodore 65 and MEGA65) emulation.
   Part of the Xemu project, please visit: https://github.com/lgblgblgb/xemu
   Copyright (C)2016-2022 LGB (Gábor Lénárt) <lgblgblgb@gmail.com>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
#ifndef XEMU_COMMON_F011_CORE_H_INCLUDED
#define XEMU_COMMON_F011_CORE_H_INCLUDED
 
#define FDC_DENY_DISK_ACCESS            0
#define FDC_ALLOW_DISK_ACCESS           1
#define FDC_DENY_DISK_ACCESS_ONCE       2
 
extern void  fdc_write_reg ( int addr, Uint8 data );
extern Uint8 fdc_read_reg  ( int addr );
extern void  fdc_init      ( Uint8 *cache_set );
extern void  fdc_set_disk  ( int which, int in_have_disk, int in_have_write );
extern void  fdc_allow_disk_access ( int in );
extern int   fdc_get_led_state ( int blink_inc );
extern int   fdc_get_buffer_cpu_address  ( void );
extern int   fdc_get_buffer_disk_address ( void );
extern int   fdc_get_status_a ( const int which );
extern int   fdc_get_status_b ( const int which );
 
/* must defined by the user */
extern int   fdc_cb_rd_sec ( const int which, Uint8 *buffer, const Uint8 side, const Uint8 track, const Uint8 sector );
extern int   fdc_cb_wr_sec ( const int which, Uint8 *buffer, const Uint8 side, const Uint8 track, const Uint8 sector );
 
#ifdef XEMU_SNAPSHOT_SUPPORT
#include "xemu/emutools_snapshot.h"
extern int fdc_snapshot_load_state ( const struct xemu_snapshot_definition_st *def , struct xemu_snapshot_block_st *block );
extern int fdc_snapshot_save_state ( const struct xemu_snapshot_definition_st *def );
#endif
 
#endif