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/* simpleide.c: Simple 8-bit IDE interface routines
Copyright (c) 2003-2017 Garry Lancaster, Philip Kendall, Fredrick Meunier
Copyright (c) 2015 Stuart Brady
Copyright (c) 2016 Sergio Baldoví
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: Philip Kendall <philip-fuse@shadowmagic.org.uk>
*/
#include <config.h>
#include <libspectrum.h>
#include "ide.h"
#include "infrastructure/startup_manager.h"
#include "module.h"
#include "periph.h"
#include "settings.h"
#include "simpleide.h"
#include "ui/ui.h"
/* Private function prototypes */
static libspectrum_byte simpleide_read( libspectrum_word port, libspectrum_byte *attached );
static void simpleide_write( libspectrum_word port, libspectrum_byte data );
/* Data */
static const periph_port_t simpleide_ports[] = {
{ 0x0010, 0x0000, simpleide_read, simpleide_write },
{ 0, 0, NULL, NULL }
};
static const periph_t simpleide_periph = {
/* .option = */ &settings_current.simpleide_active,
/* .ports = */ simpleide_ports,
/* .hard_reset = */ 1,
/* .activate = */ NULL,
};
static libspectrum_ide_channel *simpleide_idechn;
static void simpleide_snapshot_enabled( libspectrum_snap *snap );
static void simpleide_to_snapshot( libspectrum_snap *snap );
static module_info_t simpleide_module_info = {
/* .reset = */ simpleide_reset,
/* .romcs = */ NULL,
/* .snapshot_enabled = */ simpleide_snapshot_enabled,
/* .snapshot_from = */ NULL,
/* .snapshot_to = */ simpleide_to_snapshot,
};
/* Housekeeping functions */
static int
simpleide_init( void *context )
{
int error;
simpleide_idechn = libspectrum_ide_alloc( LIBSPECTRUM_IDE_DATA8 );
error = ide_init( simpleide_idechn,
settings_current.simpleide_master_file,
UI_MENU_ITEM_MEDIA_IDE_SIMPLE8BIT_MASTER_EJECT,
settings_current.simpleide_slave_file,
UI_MENU_ITEM_MEDIA_IDE_SIMPLE8BIT_SLAVE_EJECT );
if( error ) return error;
module_register( &simpleide_module_info );
periph_register( PERIPH_TYPE_SIMPLEIDE, &simpleide_periph );
return 0;
}
static void
simpleide_end( void )
{
libspectrum_ide_free( simpleide_idechn );
}
void
simpleide_register_startup( void )
{
startup_manager_module dependencies[] = {
STARTUP_MANAGER_MODULE_DISPLAY,
STARTUP_MANAGER_MODULE_SETUID
};
startup_manager_register( STARTUP_MANAGER_MODULE_SIMPLEIDE, dependencies,
ARRAY_SIZE( dependencies ), simpleide_init, NULL,
simpleide_end );
}
void
simpleide_reset( int hard_reset GCC_UNUSED )
{
libspectrum_ide_reset( simpleide_idechn );
}
int
simpleide_insert( const char *filename, libspectrum_ide_unit unit )
{
return ide_master_slave_insert(
simpleide_idechn, unit, filename,
&settings_current.simpleide_master_file,
UI_MENU_ITEM_MEDIA_IDE_SIMPLE8BIT_MASTER_EJECT,
&settings_current.simpleide_slave_file,
UI_MENU_ITEM_MEDIA_IDE_SIMPLE8BIT_SLAVE_EJECT );
}
int
simpleide_commit( libspectrum_ide_unit unit )
{
int error;
error = libspectrum_ide_commit( simpleide_idechn, unit );
return error;
}
int
simpleide_eject( libspectrum_ide_unit unit )
{
return ide_master_slave_eject(
simpleide_idechn, unit,
&settings_current.simpleide_master_file,
UI_MENU_ITEM_MEDIA_IDE_SIMPLE8BIT_MASTER_EJECT,
&settings_current.simpleide_slave_file,
UI_MENU_ITEM_MEDIA_IDE_SIMPLE8BIT_SLAVE_EJECT );
}
/* Port read/writes */
static libspectrum_byte
simpleide_read( libspectrum_word port, libspectrum_byte *attached )
{
libspectrum_ide_register idereg;
*attached = 0xff; /* TODO: check this */
idereg = ( ( port >> 8 ) & 0x01 ) | ( ( port >> 11 ) & 0x06 );
return libspectrum_ide_read( simpleide_idechn, idereg );
}
static void
simpleide_write( libspectrum_word port, libspectrum_byte data )
{
libspectrum_ide_register idereg;
idereg = ( ( port >> 8 ) & 0x01 ) | ( ( port >> 11 ) & 0x06 );
libspectrum_ide_write( simpleide_idechn, idereg, data );
}
static void
simpleide_snapshot_enabled( libspectrum_snap *snap )
{
if( libspectrum_snap_simpleide_active( snap ) )
settings_current.simpleide_active = 1;
}
static void
simpleide_to_snapshot( libspectrum_snap *snap )
{
if( !settings_current.simpleide_active ) return;
libspectrum_snap_set_simpleide_active( snap, 1 );
}
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