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Files
fuse/peripherals/melodik.c
Fredrick Meunier 160b7e7544 Always set peripheral status to match snapshots
when they are being loaded
2018-04-03 21:23:16 +10:00

101 lines
2.8 KiB
C

/* melodik.c: Routines for handling the Melodik interface
Copyright (c) 2009-2016 Fredrick Meunier, Philip Kendall
Copyright (c) 2015 Stuart Brady
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:
Philip: philip-fuse@shadowmagic.org.uk
*/
#include <config.h>
#include <libspectrum.h>
#include "ay.h"
#include "compat.h"
#include "infrastructure/startup_manager.h"
#include "melodik.h"
#include "module.h"
#include "periph.h"
#include "settings.h"
static void melodik_enabled_snapshot( libspectrum_snap *snap );
static void melodik_from_snapshot( libspectrum_snap *snap );
static void melodik_to_snapshot( libspectrum_snap *snap );
static module_info_t melodik_module_info = {
/* .reset = */ NULL,
/* .romcs = */ NULL,
/* .snapshot_enabled = */ melodik_enabled_snapshot,
/* .snapshot_from = */ melodik_from_snapshot,
/* .snapshot_to = */ melodik_to_snapshot,
};
static const periph_port_t melodik_ports[] = {
{ 0xc002, 0xc000, ay_registerport_read, ay_registerport_write },
{ 0xc002, 0x8000, NULL, ay_dataport_write },
{ 0, 0, NULL, NULL }
};
static const periph_t melodik_periph = {
/* .option = */ &settings_current.melodik,
/* .ports = */ melodik_ports,
/* .hard_reset = */ 1,
/* .activate = */ NULL,
};
static void
melodik_enabled_snapshot( libspectrum_snap *snap )
{
settings_current.melodik = libspectrum_snap_melodik_active( snap );
}
static void
melodik_from_snapshot( libspectrum_snap *snap )
{
if( periph_is_active( PERIPH_TYPE_MELODIK ) )
ay_state_from_snapshot( snap );
}
static void
melodik_to_snapshot( libspectrum_snap *snap )
{
int active = periph_is_active( PERIPH_TYPE_MELODIK );
libspectrum_snap_set_melodik_active( snap, active );
}
static int
melodik_init( void *context )
{
module_register( &melodik_module_info );
periph_register( PERIPH_TYPE_MELODIK, &melodik_periph );
return 0;
}
void
melodik_register_startup( void )
{
startup_manager_module dependencies[] = { STARTUP_MANAGER_MODULE_SETUID };
startup_manager_register( STARTUP_MANAGER_MODULE_MELODIK, dependencies,
ARRAY_SIZE( dependencies ), melodik_init, NULL,
NULL );
}