nkeynes@26 | 1 | /**
|
nkeynes@372 | 2 | * $Id: dreamcast.c,v 1.22 2007-09-08 04:38:38 nkeynes Exp $
|
nkeynes@26 | 3 | * Central switchboard for the system. This pulls all the individual modules
|
nkeynes@26 | 4 | * together into some kind of coherent structure. This is also where you'd
|
nkeynes@26 | 5 | * add Naomi support, if I ever get a board to play with...
|
nkeynes@26 | 6 | *
|
nkeynes@26 | 7 | * Copyright (c) 2005 Nathan Keynes.
|
nkeynes@26 | 8 | *
|
nkeynes@26 | 9 | * This program is free software; you can redistribute it and/or modify
|
nkeynes@26 | 10 | * it under the terms of the GNU General Public License as published by
|
nkeynes@26 | 11 | * the Free Software Foundation; either version 2 of the License, or
|
nkeynes@26 | 12 | * (at your option) any later version.
|
nkeynes@26 | 13 | *
|
nkeynes@26 | 14 | * This program is distributed in the hope that it will be useful,
|
nkeynes@26 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
nkeynes@26 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
nkeynes@26 | 17 | * GNU General Public License for more details.
|
nkeynes@26 | 18 | */
|
nkeynes@26 | 19 |
|
nkeynes@18 | 20 | #include <errno.h>
|
nkeynes@144 | 21 | #include <glib/gstrfuncs.h>
|
nkeynes@2 | 22 | #include "dream.h"
|
nkeynes@2 | 23 | #include "mem.h"
|
nkeynes@11 | 24 | #include "aica/aica.h"
|
nkeynes@2 | 25 | #include "asic.h"
|
nkeynes@2 | 26 | #include "dreamcast.h"
|
nkeynes@25 | 27 | #include "gdrom/ide.h"
|
nkeynes@25 | 28 | #include "maple/maple.h"
|
nkeynes@15 | 29 |
|
nkeynes@26 | 30 | /**
|
nkeynes@26 | 31 | * Current state of the DC virtual machine
|
nkeynes@26 | 32 | */
|
nkeynes@26 | 33 | #define STATE_UNINIT 0
|
nkeynes@26 | 34 | #define STATE_RUNNING 1
|
nkeynes@26 | 35 | #define STATE_STOPPING 2
|
nkeynes@26 | 36 | #define STATE_STOPPED 3
|
nkeynes@26 | 37 | static volatile int dreamcast_state = STATE_UNINIT;
|
nkeynes@26 | 38 | static uint32_t timeslice_length = DEFAULT_TIMESLICE_LENGTH;
|
nkeynes@26 | 39 | static char *dreamcast_config = "DEFAULT";
|
nkeynes@2 | 40 |
|
nkeynes@15 | 41 | #define MAX_MODULES 32
|
nkeynes@15 | 42 | static int num_modules = 0;
|
nkeynes@16 | 43 | dreamcast_module_t modules[MAX_MODULES];
|
nkeynes@15 | 44 |
|
nkeynes@16 | 45 | /**
|
nkeynes@35 | 46 | * The unknown module is used for logging files without an actual module
|
nkeynes@35 | 47 | * declaration
|
nkeynes@35 | 48 | */
|
nkeynes@35 | 49 | struct dreamcast_module unknown_module = { "****", NULL, NULL, NULL, NULL,
|
nkeynes@35 | 50 | NULL, NULL, NULL };
|
nkeynes@35 | 51 |
|
nkeynes@35 | 52 | /**
|
nkeynes@16 | 53 | * This function is responsible for defining how all the pieces of the
|
nkeynes@26 | 54 | * dreamcast actually fit together.
|
nkeynes@16 | 55 | *
|
nkeynes@16 | 56 | * Note currently the locations of the various MMIO pages are hard coded in
|
nkeynes@16 | 57 | * the MMIO definitions - they should probably be moved here.
|
nkeynes@16 | 58 | */
|
nkeynes@15 | 59 | void dreamcast_configure( )
|
nkeynes@15 | 60 | {
|
nkeynes@265 | 61 | dreamcast_register_module( &eventq_module );
|
nkeynes@16 | 62 | /* Register the memory framework */
|
nkeynes@15 | 63 | dreamcast_register_module( &mem_module );
|
nkeynes@16 | 64 |
|
nkeynes@16 | 65 | /* Setup standard memory map */
|
nkeynes@146 | 66 | mem_create_repeating_ram_region( 0x0C000000, 16 MB, MEM_REGION_MAIN, 0x01000000, 0x0F000000 );
|
nkeynes@16 | 67 | mem_create_ram_region( 0x00800000, 2 MB, MEM_REGION_AUDIO );
|
nkeynes@16 | 68 | mem_create_ram_region( 0x00703000, 8 KB, MEM_REGION_AUDIO_SCRATCH );
|
nkeynes@16 | 69 | mem_create_ram_region( 0x05000000, 8 MB, MEM_REGION_VIDEO );
|
nkeynes@180 | 70 | if( mem_load_rom( dreamcast_get_config_value(CONFIG_BIOS_PATH),
|
nkeynes@180 | 71 | 0x00000000, 0x00200000, 0x89f2b1a1 ) == NULL ) {
|
nkeynes@180 | 72 | /* Bios wasn't found. Dump an empty ram region in there for something to do */
|
nkeynes@180 | 73 | mem_create_ram_region( 0x00000000, 0x00200000, MEM_REGION_BIOS );
|
nkeynes@180 | 74 | }
|
nkeynes@146 | 75 | mem_create_ram_region( 0x00200000, 0x00020000, MEM_REGION_FLASH );
|
nkeynes@167 | 76 | mem_load_block( dreamcast_get_config_value(CONFIG_FLASH_PATH),
|
nkeynes@167 | 77 | 0x00200000, 0x00020000 );
|
nkeynes@16 | 78 |
|
nkeynes@16 | 79 | /* Load in the rest of the core modules */
|
nkeynes@15 | 80 | dreamcast_register_module( &sh4_module );
|
nkeynes@15 | 81 | dreamcast_register_module( &asic_module );
|
nkeynes@15 | 82 | dreamcast_register_module( &pvr2_module );
|
nkeynes@15 | 83 | dreamcast_register_module( &aica_module );
|
nkeynes@15 | 84 | dreamcast_register_module( &maple_module );
|
nkeynes@15 | 85 | dreamcast_register_module( &ide_module );
|
nkeynes@15 | 86 | }
|
nkeynes@15 | 87 |
|
nkeynes@277 | 88 | void dreamcast_save_flash()
|
nkeynes@277 | 89 | {
|
nkeynes@277 | 90 | char *file = dreamcast_get_config_value(CONFIG_FLASH_PATH);
|
nkeynes@277 | 91 | mem_save_block( file, 0x00200000, 0x00020000 );
|
nkeynes@277 | 92 | }
|
nkeynes@277 | 93 |
|
nkeynes@71 | 94 | /**
|
nkeynes@71 | 95 | * Constructs a system configuration for the AICA in standalone mode,
|
nkeynes@71 | 96 | * ie sound chip only.
|
nkeynes@71 | 97 | */
|
nkeynes@71 | 98 | void dreamcast_configure_aica_only( )
|
nkeynes@71 | 99 | {
|
nkeynes@71 | 100 | dreamcast_register_module( &mem_module );
|
nkeynes@71 | 101 | mem_create_ram_region( 0x00800000, 2 MB, MEM_REGION_AUDIO );
|
nkeynes@71 | 102 | mem_create_ram_region( 0x00703000, 8 KB, MEM_REGION_AUDIO_SCRATCH );
|
nkeynes@71 | 103 | dreamcast_register_module( &aica_module );
|
nkeynes@89 | 104 | aica_enable();
|
nkeynes@71 | 105 | dreamcast_state = STATE_STOPPED;
|
nkeynes@71 | 106 | }
|
nkeynes@71 | 107 |
|
nkeynes@15 | 108 | void dreamcast_register_module( dreamcast_module_t module )
|
nkeynes@15 | 109 | {
|
nkeynes@15 | 110 | modules[num_modules++] = module;
|
nkeynes@16 | 111 | if( module->init != NULL )
|
nkeynes@16 | 112 | module->init();
|
nkeynes@15 | 113 | }
|
nkeynes@15 | 114 |
|
nkeynes@15 | 115 |
|
nkeynes@2 | 116 | void dreamcast_init( void )
|
nkeynes@2 | 117 | {
|
nkeynes@15 | 118 | dreamcast_configure();
|
nkeynes@23 | 119 | dreamcast_state = STATE_STOPPED;
|
nkeynes@2 | 120 | }
|
nkeynes@2 | 121 |
|
nkeynes@2 | 122 | void dreamcast_reset( void )
|
nkeynes@2 | 123 | {
|
nkeynes@15 | 124 | int i;
|
nkeynes@15 | 125 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@15 | 126 | if( modules[i]->reset != NULL )
|
nkeynes@15 | 127 | modules[i]->reset();
|
nkeynes@15 | 128 | }
|
nkeynes@2 | 129 | }
|
nkeynes@2 | 130 |
|
nkeynes@23 | 131 | void dreamcast_run( void )
|
nkeynes@15 | 132 | {
|
nkeynes@15 | 133 | int i;
|
nkeynes@23 | 134 | if( dreamcast_state != STATE_RUNNING ) {
|
nkeynes@23 | 135 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@23 | 136 | if( modules[i]->start != NULL )
|
nkeynes@23 | 137 | modules[i]->start();
|
nkeynes@23 | 138 | }
|
nkeynes@15 | 139 | }
|
nkeynes@23 | 140 | dreamcast_state = STATE_RUNNING;
|
nkeynes@23 | 141 | while( dreamcast_state == STATE_RUNNING ) {
|
nkeynes@27 | 142 | int time_to_run = timeslice_length;
|
nkeynes@23 | 143 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@23 | 144 | if( modules[i]->run_time_slice != NULL )
|
nkeynes@27 | 145 | time_to_run = modules[i]->run_time_slice( time_to_run );
|
nkeynes@23 | 146 | }
|
nkeynes@23 | 147 |
|
nkeynes@23 | 148 | }
|
nkeynes@23 | 149 |
|
nkeynes@15 | 150 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@15 | 151 | if( modules[i]->stop != NULL )
|
nkeynes@15 | 152 | modules[i]->stop();
|
nkeynes@15 | 153 | }
|
nkeynes@23 | 154 | dreamcast_state = STATE_STOPPED;
|
nkeynes@2 | 155 | }
|
nkeynes@15 | 156 |
|
nkeynes@372 | 157 | void dreamcast_run_for( unsigned int seconds, unsigned int nanosecs )
|
nkeynes@372 | 158 | {
|
nkeynes@372 | 159 |
|
nkeynes@372 | 160 | int i;
|
nkeynes@372 | 161 | if( dreamcast_state != STATE_RUNNING ) {
|
nkeynes@372 | 162 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@372 | 163 | if( modules[i]->start != NULL )
|
nkeynes@372 | 164 | modules[i]->start();
|
nkeynes@372 | 165 | }
|
nkeynes@372 | 166 | }
|
nkeynes@372 | 167 | dreamcast_state = STATE_RUNNING;
|
nkeynes@372 | 168 | uint32_t nanos = 0;
|
nkeynes@372 | 169 | if( nanosecs != 0 ) {
|
nkeynes@372 | 170 | nanos = 1000000000 - nanosecs;
|
nkeynes@372 | 171 | seconds++;
|
nkeynes@372 | 172 | }
|
nkeynes@372 | 173 | while( dreamcast_state == STATE_RUNNING && seconds != 0 ) {
|
nkeynes@372 | 174 | int time_to_run = timeslice_length;
|
nkeynes@372 | 175 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@372 | 176 | if( modules[i]->run_time_slice != NULL )
|
nkeynes@372 | 177 | time_to_run = modules[i]->run_time_slice( time_to_run );
|
nkeynes@372 | 178 | }
|
nkeynes@372 | 179 | nanos += time_to_run;
|
nkeynes@372 | 180 | if( nanos >= 1000000000 ) {
|
nkeynes@372 | 181 | nanos -= 1000000000;
|
nkeynes@372 | 182 | seconds--;
|
nkeynes@372 | 183 | }
|
nkeynes@372 | 184 | }
|
nkeynes@372 | 185 |
|
nkeynes@372 | 186 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@372 | 187 | if( modules[i]->stop != NULL )
|
nkeynes@372 | 188 | modules[i]->stop();
|
nkeynes@372 | 189 | }
|
nkeynes@372 | 190 | dreamcast_state = STATE_STOPPED;
|
nkeynes@372 | 191 | }
|
nkeynes@372 | 192 |
|
nkeynes@23 | 193 | void dreamcast_stop( void )
|
nkeynes@23 | 194 | {
|
nkeynes@23 | 195 | if( dreamcast_state == STATE_RUNNING )
|
nkeynes@23 | 196 | dreamcast_state = STATE_STOPPING;
|
nkeynes@23 | 197 | }
|
nkeynes@17 | 198 |
|
nkeynes@277 | 199 | void dreamcast_shutdown()
|
nkeynes@277 | 200 | {
|
nkeynes@277 | 201 | dreamcast_stop();
|
nkeynes@277 | 202 | sh4_stop();
|
nkeynes@277 | 203 | dreamcast_save_flash();
|
nkeynes@277 | 204 | }
|
nkeynes@277 | 205 |
|
nkeynes@26 | 206 | gboolean dreamcast_is_running( void )
|
nkeynes@26 | 207 | {
|
nkeynes@26 | 208 | return dreamcast_state == STATE_RUNNING;
|
nkeynes@26 | 209 | }
|
nkeynes@26 | 210 |
|
nkeynes@30 | 211 | /***************************** User Configuration **************************/
|
nkeynes@30 | 212 |
|
nkeynes@167 | 213 |
|
nkeynes@144 | 214 | static struct dreamcast_config_entry global_config[] =
|
nkeynes@144 | 215 | {{ "bios", CONFIG_TYPE_FILE, "dcboot.rom" },
|
nkeynes@144 | 216 | { "flash", CONFIG_TYPE_FILE, "dcflash.rom" },
|
nkeynes@144 | 217 | { "default path", CONFIG_TYPE_PATH, "." },
|
nkeynes@144 | 218 | { "save path", CONFIG_TYPE_PATH, "save" },
|
nkeynes@144 | 219 | { "bootstrap", CONFIG_TYPE_FILE, "IP.BIN" },
|
nkeynes@144 | 220 | { NULL, CONFIG_TYPE_NONE }};
|
nkeynes@144 | 221 |
|
nkeynes@144 | 222 | static struct dreamcast_config_entry serial_config[] =
|
nkeynes@144 | 223 | {{ "device", CONFIG_TYPE_FILE, "/dev/ttyS1" },
|
nkeynes@144 | 224 | { NULL, CONFIG_TYPE_NONE }};
|
nkeynes@144 | 225 |
|
nkeynes@144 | 226 | struct dreamcast_config_group dreamcast_config_root[] =
|
nkeynes@144 | 227 | {{ "global", global_config },
|
nkeynes@144 | 228 | { "controllers", NULL },
|
nkeynes@144 | 229 | { "serial", serial_config },
|
nkeynes@144 | 230 | { NULL, CONFIG_TYPE_NONE }};
|
nkeynes@144 | 231 |
|
nkeynes@144 | 232 | void dreamcast_set_default_config( )
|
nkeynes@144 | 233 | {
|
nkeynes@144 | 234 | struct dreamcast_config_group *group = dreamcast_config_root;
|
nkeynes@144 | 235 | while( group->key != NULL ) {
|
nkeynes@144 | 236 | struct dreamcast_config_entry *param = group->params;
|
nkeynes@144 | 237 | if( param != NULL ) {
|
nkeynes@144 | 238 | while( param->key != NULL ) {
|
nkeynes@144 | 239 | if( param->value != param->default_value ) {
|
nkeynes@144 | 240 | if( param->value != NULL )
|
nkeynes@144 | 241 | free( param->value );
|
nkeynes@144 | 242 | param->value = (gchar *)param->default_value;
|
nkeynes@144 | 243 | }
|
nkeynes@144 | 244 | param++;
|
nkeynes@144 | 245 | }
|
nkeynes@144 | 246 | }
|
nkeynes@144 | 247 | group++;
|
nkeynes@144 | 248 | }
|
nkeynes@144 | 249 | maple_detach_all();
|
nkeynes@144 | 250 | }
|
nkeynes@144 | 251 |
|
nkeynes@167 | 252 | const gchar *dreamcast_get_config_value( int key )
|
nkeynes@167 | 253 | {
|
nkeynes@167 | 254 | return global_config[key].value;
|
nkeynes@167 | 255 | }
|
nkeynes@167 | 256 |
|
nkeynes@144 | 257 | gboolean dreamcast_load_config( const gchar *filename )
|
nkeynes@144 | 258 | {
|
nkeynes@144 | 259 | FILE *f = fopen(filename, "ro");
|
nkeynes@144 | 260 | gboolean result;
|
nkeynes@144 | 261 |
|
nkeynes@144 | 262 | if( f == NULL ) {
|
nkeynes@144 | 263 | ERROR( "Unable to open '%s': %s", filename, strerror(errno) );
|
nkeynes@144 | 264 | return FALSE;
|
nkeynes@144 | 265 | }
|
nkeynes@144 | 266 |
|
nkeynes@144 | 267 | result = dreamcast_load_config_stream( f );
|
nkeynes@144 | 268 | fclose(f);
|
nkeynes@144 | 269 | return result;
|
nkeynes@144 | 270 | }
|
nkeynes@144 | 271 |
|
nkeynes@144 | 272 | gboolean dreamcast_load_config_stream( FILE *f )
|
nkeynes@30 | 273 | {
|
nkeynes@30 | 274 |
|
nkeynes@144 | 275 | char buf[512], *p;
|
nkeynes@144 | 276 | int maple_device = -1, maple_subdevice = -1;
|
nkeynes@144 | 277 | struct dreamcast_config_group devgroup;
|
nkeynes@144 | 278 | struct dreamcast_config_group *group = NULL;
|
nkeynes@144 | 279 | maple_device_t device = NULL;
|
nkeynes@144 | 280 | dreamcast_set_default_config();
|
nkeynes@30 | 281 |
|
nkeynes@144 | 282 | while( fgets( buf, sizeof(buf), f ) != NULL ) {
|
nkeynes@144 | 283 | g_strstrip(buf);
|
nkeynes@144 | 284 | if( buf[0] == '#' )
|
nkeynes@144 | 285 | continue;
|
nkeynes@144 | 286 | if( *buf == '[' ) {
|
nkeynes@144 | 287 | char *p = strchr(buf, ']');
|
nkeynes@144 | 288 | if( p != NULL ) {
|
nkeynes@144 | 289 | struct dreamcast_config_group *tmp_group;
|
nkeynes@144 | 290 | maple_device = maple_subdevice = -1;
|
nkeynes@144 | 291 | *p = '\0';
|
nkeynes@144 | 292 | g_strstrip(buf+1);
|
nkeynes@144 | 293 | tmp_group = &dreamcast_config_root[0];
|
nkeynes@144 | 294 | while( tmp_group->key != NULL ) {
|
nkeynes@144 | 295 | if( strcasecmp(tmp_group->key, buf+1) == 0 ) {
|
nkeynes@144 | 296 | group = tmp_group;
|
nkeynes@144 | 297 | break;
|
nkeynes@144 | 298 | }
|
nkeynes@144 | 299 | tmp_group++;
|
nkeynes@144 | 300 | }
|
nkeynes@144 | 301 | }
|
nkeynes@144 | 302 | } else if( group != NULL ) {
|
nkeynes@144 | 303 | char *value = strchr( buf, '=' );
|
nkeynes@144 | 304 | if( value != NULL ) {
|
nkeynes@144 | 305 | struct dreamcast_config_entry *param = group->params;
|
nkeynes@144 | 306 | *value = '\0';
|
nkeynes@144 | 307 | value++;
|
nkeynes@144 | 308 | g_strstrip(buf);
|
nkeynes@144 | 309 | g_strstrip(value);
|
nkeynes@144 | 310 | if( strcmp(group->key,"controllers") == 0 ) {
|
nkeynes@144 | 311 | if( g_strncasecmp( buf, "device ", 7 ) == 0 ) {
|
nkeynes@144 | 312 | maple_device = strtoul( buf+7, NULL, 0 );
|
nkeynes@144 | 313 | if( maple_device < 0 || maple_device > 3 ) {
|
nkeynes@144 | 314 | ERROR( "Device number must be between 0..3 (not '%s')", buf+7);
|
nkeynes@144 | 315 | continue;
|
nkeynes@144 | 316 | }
|
nkeynes@144 | 317 | maple_subdevice = 0;
|
nkeynes@144 | 318 | device = maple_new_device( value );
|
nkeynes@144 | 319 | if( device == NULL ) {
|
nkeynes@144 | 320 | ERROR( "Unrecognized device '%s'", value );
|
nkeynes@144 | 321 | } else {
|
nkeynes@144 | 322 | devgroup.key = "controllers";
|
nkeynes@144 | 323 | devgroup.params = maple_get_device_config(device);
|
nkeynes@144 | 324 | maple_attach_device( device, maple_device, maple_subdevice );
|
nkeynes@144 | 325 | group = &devgroup;
|
nkeynes@144 | 326 | }
|
nkeynes@144 | 327 | continue;
|
nkeynes@144 | 328 | } else if( g_strncasecmp( buf, "subdevice ", 10 ) == 0 ) {
|
nkeynes@144 | 329 | maple_subdevice = strtoul( buf+10, NULL, 0 );
|
nkeynes@144 | 330 | if( maple_device == -1 ) {
|
nkeynes@144 | 331 | ERROR( "Subdevice not allowed without primary device" );
|
nkeynes@144 | 332 | } else if( maple_subdevice < 1 || maple_subdevice > 5 ) {
|
nkeynes@144 | 333 | ERROR( "Subdevice must be between 1..5 (not '%s')", buf+10 );
|
nkeynes@144 | 334 | } else if( (device = maple_new_device(value)) == NULL ) {
|
nkeynes@144 | 335 | ERROR( "Unrecognized subdevice '%s'", value );
|
nkeynes@144 | 336 | } else {
|
nkeynes@144 | 337 | devgroup.key = "controllers";
|
nkeynes@144 | 338 | devgroup.params = maple_get_device_config(device);
|
nkeynes@144 | 339 | maple_attach_device( device, maple_device, maple_subdevice );
|
nkeynes@144 | 340 | group = &devgroup;
|
nkeynes@144 | 341 | }
|
nkeynes@144 | 342 | continue;
|
nkeynes@144 | 343 | }
|
nkeynes@144 | 344 | }
|
nkeynes@144 | 345 | while( param->key != NULL ) {
|
nkeynes@144 | 346 | if( strcasecmp( param->key, buf ) == 0 ) {
|
nkeynes@144 | 347 | param->value = g_strdup(value);
|
nkeynes@144 | 348 | break;
|
nkeynes@144 | 349 | }
|
nkeynes@144 | 350 | param++;
|
nkeynes@144 | 351 | }
|
nkeynes@144 | 352 | }
|
nkeynes@144 | 353 | }
|
nkeynes@144 | 354 | }
|
nkeynes@144 | 355 | return TRUE;
|
nkeynes@30 | 356 | }
|
nkeynes@30 | 357 |
|
nkeynes@144 | 358 | gboolean dreamcast_save_config( const gchar *filename )
|
nkeynes@30 | 359 | {
|
nkeynes@144 | 360 | FILE *f = fopen(filename, "wo");
|
nkeynes@144 | 361 | gboolean result;
|
nkeynes@144 | 362 | if( f == NULL ) {
|
nkeynes@144 | 363 | ERROR( "Unable to open '%s': %s", filename, strerror(errno) );
|
nkeynes@144 | 364 | return FALSE;
|
nkeynes@144 | 365 | }
|
nkeynes@144 | 366 | result = dreamcast_save_config_stream(f);
|
nkeynes@144 | 367 | fclose(f);
|
nkeynes@144 | 368 | }
|
nkeynes@30 | 369 |
|
nkeynes@144 | 370 | gboolean dreamcast_save_config_stream( FILE *f )
|
nkeynes@144 | 371 | {
|
nkeynes@144 | 372 | struct dreamcast_config_group *group = &dreamcast_config_root[0];
|
nkeynes@144 | 373 |
|
nkeynes@144 | 374 | while( group->key != NULL ) {
|
nkeynes@144 | 375 | struct dreamcast_config_entry *entry = group->params;
|
nkeynes@144 | 376 | fprintf( f, "[%s]\n", group->key );
|
nkeynes@144 | 377 |
|
nkeynes@144 | 378 | if( entry != NULL ) {
|
nkeynes@144 | 379 | while( entry->key != NULL ) {
|
nkeynes@144 | 380 | fprintf( f, "%s = %s\n", entry->key, entry->value );
|
nkeynes@144 | 381 | entry++;
|
nkeynes@144 | 382 | }
|
nkeynes@144 | 383 | } else if( strcmp(group->key, "controllers") == 0 ) {
|
nkeynes@144 | 384 | int i,j;
|
nkeynes@144 | 385 | for( i=0; i<4; i++ ) {
|
nkeynes@144 | 386 | for( j=0; j<6; j++ ) {
|
nkeynes@144 | 387 | maple_device_t dev = maple_get_device( i, j );
|
nkeynes@144 | 388 | if( dev != NULL ) {
|
nkeynes@144 | 389 | if( j == 0 )
|
nkeynes@144 | 390 | fprintf( f, "Device %d = %s\n", i, dev->device_class->name );
|
nkeynes@144 | 391 | else
|
nkeynes@144 | 392 | fprintf( f, "Subdevice %d = %s\n", j, dev->device_class->name );
|
nkeynes@144 | 393 | entry = dev->get_config(dev);
|
nkeynes@144 | 394 | while( entry->key != NULL ) {
|
nkeynes@144 | 395 | fprintf( f, "%*c%s = %s\n", j==0?4:8, ' ',entry->key, entry->value );
|
nkeynes@144 | 396 | entry++;
|
nkeynes@144 | 397 | }
|
nkeynes@144 | 398 | }
|
nkeynes@144 | 399 | }
|
nkeynes@144 | 400 | }
|
nkeynes@144 | 401 | }
|
nkeynes@144 | 402 | fprintf( f, "\n" );
|
nkeynes@144 | 403 | group++;
|
nkeynes@144 | 404 | }
|
nkeynes@144 | 405 | return TRUE;
|
nkeynes@30 | 406 | }
|
nkeynes@26 | 407 |
|
nkeynes@26 | 408 | /********************************* Save States *****************************/
|
nkeynes@26 | 409 |
|
nkeynes@26 | 410 | struct save_state_header {
|
nkeynes@26 | 411 | char magic[16];
|
nkeynes@26 | 412 | uint32_t version;
|
nkeynes@26 | 413 | uint32_t module_count;
|
nkeynes@26 | 414 | };
|
nkeynes@26 | 415 |
|
nkeynes@18 | 416 | int dreamcast_load_state( const gchar *filename )
|
nkeynes@15 | 417 | {
|
nkeynes@17 | 418 | int i,j;
|
nkeynes@17 | 419 | uint32_t count, len;
|
nkeynes@17 | 420 | int have_read[MAX_MODULES];
|
nkeynes@17 | 421 | char tmp[64];
|
nkeynes@15 | 422 | struct save_state_header header;
|
nkeynes@18 | 423 | FILE *f;
|
nkeynes@18 | 424 |
|
nkeynes@18 | 425 | f = fopen( filename, "r" );
|
nkeynes@18 | 426 | if( f == NULL ) return errno;
|
nkeynes@15 | 427 |
|
nkeynes@15 | 428 | fread( &header, sizeof(header), 1, f );
|
nkeynes@15 | 429 | if( strncmp( header.magic, DREAMCAST_SAVE_MAGIC, 16 ) != 0 ) {
|
nkeynes@180 | 430 | ERROR( "Not a %s save state file", APP_NAME );
|
nkeynes@17 | 431 | return 1;
|
nkeynes@15 | 432 | }
|
nkeynes@15 | 433 | if( header.version != DREAMCAST_SAVE_VERSION ) {
|
nkeynes@180 | 434 | ERROR( "%s save state version not supported", APP_NAME );
|
nkeynes@17 | 435 | return 1;
|
nkeynes@17 | 436 | }
|
nkeynes@18 | 437 | if( header.module_count > MAX_MODULES ) {
|
nkeynes@180 | 438 | ERROR( "%s save state is corrupted (bad module count)", APP_NAME );
|
nkeynes@17 | 439 | return 1;
|
nkeynes@17 | 440 | }
|
nkeynes@17 | 441 | for( i=0; i<MAX_MODULES; i++ ) {
|
nkeynes@17 | 442 | have_read[i] = 0;
|
nkeynes@15 | 443 | }
|
nkeynes@15 | 444 |
|
nkeynes@18 | 445 | for( i=0; i<header.module_count; i++ ) {
|
nkeynes@17 | 446 | fread(tmp, 4, 1, f );
|
nkeynes@18 | 447 | if( strncmp(tmp, "BLCK", 4) != 0 ) {
|
nkeynes@180 | 448 | ERROR( "%s save state is corrupted (missing block header %d)", APP_NAME, i );
|
nkeynes@17 | 449 | return 2;
|
nkeynes@17 | 450 | }
|
nkeynes@17 | 451 | len = fread_string(tmp, sizeof(tmp), f );
|
nkeynes@17 | 452 | if( len > 64 || len < 1 ) {
|
nkeynes@180 | 453 | ERROR( "%s save state is corrupted (bad string)", APP_NAME );
|
nkeynes@17 | 454 | return 2;
|
nkeynes@17 | 455 | }
|
nkeynes@17 | 456 |
|
nkeynes@17 | 457 | /* Find the matching module by name */
|
nkeynes@17 | 458 | for( j=0; j<num_modules; j++ ) {
|
nkeynes@17 | 459 | if( strcmp(modules[j]->name,tmp) == 0 ) {
|
nkeynes@17 | 460 | have_read[j] = 1;
|
nkeynes@17 | 461 | if( modules[j]->load == NULL ) {
|
nkeynes@180 | 462 | ERROR( "%s save state is corrupted (no loader for %s)", APP_NAME, modules[j]->name );
|
nkeynes@17 | 463 | return 2;
|
nkeynes@17 | 464 | } else if( modules[j]->load(f) != 0 ) {
|
nkeynes@180 | 465 | ERROR( "%s save state is corrupted (%s failed)", APP_NAME, modules[j]->name );
|
nkeynes@17 | 466 | return 2;
|
nkeynes@17 | 467 | }
|
nkeynes@17 | 468 | break;
|
nkeynes@17 | 469 | }
|
nkeynes@17 | 470 | }
|
nkeynes@17 | 471 | if( j == num_modules ) {
|
nkeynes@180 | 472 | ERROR( "%s save state contains unrecognized section", APP_NAME );
|
nkeynes@17 | 473 | return 2;
|
nkeynes@17 | 474 | }
|
nkeynes@17 | 475 | }
|
nkeynes@17 | 476 |
|
nkeynes@17 | 477 | /* Any modules that we didn't load - reset to the default state.
|
nkeynes@17 | 478 | * (ie it's not an error to skip a module if you don't actually
|
nkeynes@17 | 479 | * care about its state).
|
nkeynes@17 | 480 | */
|
nkeynes@17 | 481 | for( j=0; j<num_modules; j++ ) {
|
nkeynes@17 | 482 | if( have_read[j] == 0 && modules[j]->reset != NULL ) {
|
nkeynes@17 | 483 | modules[j]->reset();
|
nkeynes@17 | 484 | }
|
nkeynes@15 | 485 | }
|
nkeynes@18 | 486 | fclose(f);
|
nkeynes@18 | 487 | INFO( "Save state read from %s", filename );
|
nkeynes@15 | 488 | }
|
nkeynes@15 | 489 |
|
nkeynes@18 | 490 | int dreamcast_save_state( const gchar *filename )
|
nkeynes@15 | 491 | {
|
nkeynes@15 | 492 | int i;
|
nkeynes@18 | 493 | FILE *f;
|
nkeynes@15 | 494 | struct save_state_header header;
|
nkeynes@15 | 495 |
|
nkeynes@18 | 496 | f = fopen( filename, "w" );
|
nkeynes@18 | 497 | if( f == NULL )
|
nkeynes@18 | 498 | return errno;
|
nkeynes@15 | 499 | strcpy( header.magic, DREAMCAST_SAVE_MAGIC );
|
nkeynes@15 | 500 | header.version = DREAMCAST_SAVE_VERSION;
|
nkeynes@18 | 501 | header.module_count = 0;
|
nkeynes@18 | 502 |
|
nkeynes@18 | 503 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@18 | 504 | if( modules[i]->save != NULL )
|
nkeynes@18 | 505 | header.module_count++;
|
nkeynes@18 | 506 | }
|
nkeynes@15 | 507 | fwrite( &header, sizeof(header), 1, f );
|
nkeynes@15 | 508 | for( i=0; i<num_modules; i++ ) {
|
nkeynes@15 | 509 | if( modules[i]->save != NULL ) {
|
nkeynes@17 | 510 | fwrite( "BLCK", 4, 1, f );
|
nkeynes@17 | 511 | fwrite_string( modules[i]->name, f );
|
nkeynes@15 | 512 | modules[i]->save(f);
|
nkeynes@15 | 513 | }
|
nkeynes@15 | 514 | }
|
nkeynes@18 | 515 | fclose( f );
|
nkeynes@18 | 516 | INFO( "Save state written to %s", filename );
|
nkeynes@15 | 517 | }
|
nkeynes@15 | 518 |
|