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/* dck.c: dock snapshot (Warajevo .DCK) handling routines
Copyright (c) 2003-2004 Darren Salt, Fredrick Meunier, Philip Kendall
$Id: dck.c 3703 2008-06-30 20:36:11Z pak21 $
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
Darren: linux@youmustbejoking.demon.co.uk
Fred: fredm@spamcop.net
*/
#include <config.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <libspectrum.h>
#include "dck.h"
#include "machine.h"
#include "memory.h"
#include "settings.h"
#include "scld.h"
#include "ui/ui.h"
#include "utils.h"
#include "debugger/debugger.h"
/* Dock cart inserted? */
int dck_active = 0;
int
dck_insert( const char *filename )
{
int error;
if ( !( libspectrum_machine_capabilities( machine_current->machine ) &
LIBSPECTRUM_MACHINE_CAPABILITY_TIMEX_DOCK ) ) {
ui_error( UI_ERROR_ERROR, "This machine does not support the dock" );
return 1;
}
error = settings_set_string( &settings_current.dck_file, filename );
if( error ) return error;
machine_reset( 0 );
return 0;
}
void
dck_eject( void )
{
if ( !( libspectrum_machine_capabilities( machine_current->machine ) &
LIBSPECTRUM_MACHINE_CAPABILITY_TIMEX_DOCK ) ) {
ui_error( UI_ERROR_ERROR, "This machine does not support the dock" );
return;
}
if( settings_current.dck_file ) free( settings_current.dck_file );
settings_current.dck_file = NULL;
dck_active = 0;
ui_menu_activate( UI_MENU_ITEM_MEDIA_CARTRIDGE_DOCK_EJECT, 0 );
machine_reset( 0 );
}
int
dck_reset( void )
{
utils_file file;
size_t num_block = 0;
libspectrum_dck *dck;
int error;
dck_active = 0;
if( !settings_current.dck_file ) {
ui_menu_activate( UI_MENU_ITEM_MEDIA_CARTRIDGE_DOCK_EJECT, 0 );
return 0;
}
dck = libspectrum_dck_alloc();
error = utils_read_file( settings_current.dck_file, &file );
if( error ) { libspectrum_dck_free( dck, 0 ); return error; }
error = libspectrum_dck_read2( dck, file.buffer, file.length,
settings_current.dck_file );
if( error ) {
utils_close_file( &file ); libspectrum_dck_free( dck, 0 ); return error;
}
if( utils_close_file( &file ) ) {
libspectrum_dck_free( dck, 0 );
return 1;
}
while( dck->dck[num_block] != NULL ) {
memory_page **mem;
int i;
switch( dck->dck[num_block]->bank ) {
case LIBSPECTRUM_DCK_BANK_HOME:
mem = memory_map_home;
break;
case LIBSPECTRUM_DCK_BANK_DOCK:
mem = memory_map_dock;
break;
case LIBSPECTRUM_DCK_BANK_EXROM:
mem = memory_map_exrom;
break;
default:
ui_error( UI_ERROR_INFO, "Sorry, bank ID %i is unsupported",
dck->dck[num_block]->bank );
libspectrum_dck_free( dck, 0 );
return 1;
}
for( i = 0; i < 8; i++ ) {
switch( dck->dck[num_block]->access[i] ) {
case LIBSPECTRUM_DCK_PAGE_NULL:
break;
case LIBSPECTRUM_DCK_PAGE_ROM:
mem[i]->page = memory_pool_allocate( MEMORY_PAGE_SIZE );
if( !mem[i]->page ) return 1;
memcpy( mem[i]->page, dck->dck[num_block]->pages[i],
MEMORY_PAGE_SIZE );
mem[i]->writable = 0;
mem[i]->source = MEMORY_SOURCE_CARTRIDGE;
break;
case LIBSPECTRUM_DCK_PAGE_RAM_EMPTY:
case LIBSPECTRUM_DCK_PAGE_RAM:
/* Because the scr and snapshot code depends on the standard
memory map being in the RAM[] array, we just copy RAM
blocks from the HOME bank into the appropriate page; in
other cases, we allocate ourselves a new page to store the
contents in */
if( !(dck->dck[num_block]->bank == LIBSPECTRUM_DCK_BANK_HOME && i>1) ) {
mem[i]->page = memory_pool_allocate( MEMORY_PAGE_SIZE );
if( !mem[i]->page ) return 1;
mem[i]->writable = 1;
}
mem[i]->source = MEMORY_SOURCE_CARTRIDGE;
memcpy( mem[i]->page, dck->dck[num_block]->pages[i],
MEMORY_PAGE_SIZE );
break;
}
}
num_block++;
}
dck_active = 1;
/* Make the menu item to eject the cartridge active */
ui_menu_activate( UI_MENU_ITEM_MEDIA_CARTRIDGE_DOCK_EJECT, 1 );
return libspectrum_dck_free( dck, 0 );
}
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