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filename src/config.c
changeset 464:8e099fad42a6
prev460:a0c865b74c63
next470:e09a16196693
author nkeynes
date Sat Oct 27 05:47:21 2007 +0000 (16 years ago)
permissions -rw-r--r--
last change Fix AICA save state section to include the current audio + IO state
view annotate diff log raw 
     1 /**

     2  * $Id: config.c,v 1.4 2007-10-27 05:44:53 nkeynes Exp $

     3  *

     4  * User configuration support

     5  *

     6  * Copyright (c) 2005 Nathan Keynes.

     7  *

     8  * This program is free software; you can redistribute it and/or modify

     9  * it under the terms of the GNU General Public License as published by

    10  * the Free Software Foundation; either version 2 of the License, or

    11  * (at your option) any later version.

    12  *

    13  * This program is distributed in the hope that it will be useful,

    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    16  * GNU General Public License for more details.

    17  */

    18 

    19 #include <unistd.h>

    20 #include <stdio.h>

    21 #include <errno.h>

    22 #include <stdlib.h>

    23 #include <string.h>

    24 #include <glib/gstrfuncs.h>

    25 #include "dream.h"

    26 #include "config.h"

    27 #include "maple/maple.h"

    28 

    29 gboolean lxdream_load_config_file( const gchar *filename );

    30 gboolean lxdream_save_config_file( const gchar *filename );

    31 gboolean lxdream_load_config_stream( FILE *f );

    32 gboolean lxdream_save_config_stream( FILE *f );

    33 

    34 static struct lxdream_config_entry global_config[] =

    35     {{ "bios", CONFIG_TYPE_FILE, "dcboot.rom" },

    36      { "flash", CONFIG_TYPE_FILE, "dcflash.rom" },

    37      { "default path", CONFIG_TYPE_PATH, "." },

    38      { "save path", CONFIG_TYPE_PATH, "save" },

    39      { "bootstrap", CONFIG_TYPE_FILE, "IP.BIN" },

    40      { "gdrom", CONFIG_TYPE_FILE, NULL },

    41      { NULL, CONFIG_TYPE_NONE }};

    42 

    43 static struct lxdream_config_entry serial_config[] =

    44     {{ "device", CONFIG_TYPE_FILE, "/dev/ttyS1" },

    45      { NULL, CONFIG_TYPE_NONE }};

    46 

    47 struct lxdream_config_group lxdream_config_root[] = 

    48     {{ "global", global_config },

    49      { "controllers", NULL },

    50      { "serial", serial_config },

    51      { NULL, CONFIG_TYPE_NONE }};

    52 

    53 static gchar *lxdream_config_load_filename = NULL;

    54 static gchar *lxdream_config_save_filename = NULL;

    55 

    56 gboolean lxdream_find_config()

    57 {

    58     char *home = getenv("HOME");

    59     if( lxdream_config_save_filename == NULL ) {

    60 	lxdream_config_save_filename = g_strdup_printf("%s/.%s", home, DEFAULT_CONFIG_FILENAME);

    61     }

    62     if( lxdream_config_load_filename == NULL ) {

    63 	if( access(lxdream_config_save_filename, R_OK) == 0 ) {

    64 	    lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

    65 	} else if( access( PACKAGE_CONF_DIR "/" DEFAULT_CONFIG_FILENAME, R_OK ) == 0 ) {

    66 	    lxdream_config_load_filename = g_strdup(PACKAGE_CONF_DIR "/" DEFAULT_CONFIG_FILENAME);

    67 	} else if( access( "./" DEFAULT_CONFIG_FILENAME, R_OK ) == 0 ) {

    68 	    lxdream_config_load_filename = g_strdup("./" DEFAULT_CONFIG_FILENAME);

    69 	} else {

    70 	    lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

    71 	}	

    72     } 

    73 }

    74 

    75 void lxdream_set_config_filename( const gchar *filename )

    76 {

    77     if( lxdream_config_load_filename != NULL ) {

    78 	g_free(lxdream_config_load_filename);

    79     }

    80     lxdream_config_load_filename = g_strdup(filename);

    81     if( lxdream_config_save_filename != NULL ) {

    82 	g_free(lxdream_config_save_filename);

    83     }

    84     lxdream_config_save_filename = g_strdup(filename);

    85 }

    86 

    87 void lxdream_set_default_config( )

    88 {

    89     struct lxdream_config_group *group = lxdream_config_root;

    90     while( group->key != NULL ) {

    91 	struct lxdream_config_entry *param = group->params;

    92 	if( param != NULL ) {

    93 	    while( param->key != NULL ) {

    94 		if( param->value != param->default_value ) {

    95 		    if( param->value != NULL )

    96 			free( param->value );

    97 		    param->value = (gchar *)param->default_value;

    98 		}

    99 		param++;

   100 	    }

   101 	}

   102 	group++;

   103     }

   104     maple_detach_all();

   105 }

   106 

   107 const gchar *lxdream_get_config_value( int key )

   108 {

   109     return global_config[key].value;

   110 }

   111 

   112 void lxdream_set_config_value( lxdream_config_entry_t param, const gchar *value )

   113 {

   114     if( param->value != param->default_value && param->value != NULL ) {

   115 	free( param->value );

   116     }

   117     param->value = g_strdup(value);

   118 }

   119 

   120 void lxdream_set_global_config_value( int key, const gchar *value )

   121 {

   122     lxdream_set_config_value(&global_config[key], value);

   123 }

   124 

   125 gboolean lxdream_set_group_value( lxdream_config_group_t group, const gchar *key, const gchar *value )

   126 {

   127     int i;

   128     for( i=0; group->params[i].key != NULL; i++ ) {

   129 	if( strcasecmp( group->params[i].key, key ) == 0 ) {

   130 	    lxdream_set_config_value( &group->params[i], value );

   131 	    return TRUE;

   132 	}

   133     }

   134     return FALSE;

   135 }

   136 

   137 void lxdream_copy_config_list( lxdream_config_entry_t dest, lxdream_config_entry_t src )

   138 {

   139     int i;

   140     for( i=0; src[i].key != NULL; i++ ) {

   141 	lxdream_set_config_value( &dest[i], src[i].value );

   142     }

   143 }

   144 

   145 gboolean lxdream_load_config( )

   146 {

   147     if( lxdream_config_load_filename == NULL ) {

   148 	lxdream_find_config();

   149     }

   150     return lxdream_load_config_file(lxdream_config_load_filename);

   151 }

   152 

   153 gboolean lxdream_save_config( )

   154 {

   155     if( lxdream_config_save_filename == NULL ) {

   156 	lxdream_find_config();

   157     }

   158     return lxdream_save_config_file(lxdream_config_save_filename);

   159 }

   160 

   161 gboolean lxdream_load_config_file( const gchar *filename )

   162 {

   163     FILE *f;

   164     gboolean result;

   165 

   166     if( access(filename, F_OK) != 0 ) {

   167 	INFO( "Configuration file '%s' does not exist, creating from defaults" );

   168 	lxdream_set_default_config();

   169 	lxdream_save_config();

   170     }

   171 

   172     f = fopen(filename, "ro");

   173     if( f == NULL ) {

   174 	ERROR( "Unable to open configuration file '%s': %s", filename, strerror(errno) );

   175 	lxdream_set_default_config();

   176 	return FALSE;

   177     }

   178 

   179     result = lxdream_load_config_stream( f );

   180     fclose(f);

   181     return result;

   182 }

   183 

   184 gboolean lxdream_load_config_stream( FILE *f )

   185 {

   186 

   187     char buf[512];

   188     int maple_device = -1, maple_subdevice = -1;

   189     struct lxdream_config_group devgroup;

   190     struct lxdream_config_group *group = NULL;

   191     maple_device_t device = NULL;

   192     lxdream_set_default_config();

   193 

   194     while( fgets( buf, sizeof(buf), f ) != NULL ) {

   195 	g_strstrip(buf);

   196 	if( buf[0] == '#' )

   197 	    continue;

   198 	if( *buf == '[' ) {

   199 	    char *p = strchr(buf, ']');

   200 	    if( p != NULL ) {

   201 		struct lxdream_config_group *tmp_group;

   202 		maple_device = maple_subdevice = -1;

   203 		*p = '\0';

   204 		g_strstrip(buf+1);

   205 		tmp_group = &lxdream_config_root[0];

   206 		while( tmp_group->key != NULL ) {

   207 		    if( strcasecmp(tmp_group->key, buf+1) == 0 ) {

   208 			group = tmp_group;

   209 			break;

   210 		    }

   211 		    tmp_group++;

   212 		}

   213 	    }

   214 	} else if( group != NULL ) {

   215 	    char *value = strchr( buf, '=' );

   216 	    if( value != NULL ) {

   217 		struct lxdream_config_entry *param = group->params;

   218 		*value = '\0';

   219 		value++;

   220 		g_strstrip(buf);

   221 		g_strstrip(value);

   222 		if( strcmp(group->key,"controllers") == 0  ) {

   223 		    if( g_strncasecmp( buf, "device ", 7 ) == 0 ) {

   224 			maple_device = strtoul( buf+7, NULL, 0 );

   225 			if( maple_device < 0 || maple_device > 3 ) {

   226 			    ERROR( "Device number must be between 0..3 (not '%s')", buf+7);

   227 			    continue;

   228 			}

   229 			maple_subdevice = 0;

   230 			device = maple_new_device( value );

   231 			if( device == NULL ) {

   232 			    ERROR( "Unrecognized device '%s'", value );

   233 			} else {

   234 			    devgroup.key = "controllers";

   235 			    devgroup.params = maple_get_device_config(device);

   236 			    maple_attach_device( device, maple_device, maple_subdevice );

   237 			    group = &devgroup;

   238 			}

   239 			continue;

   240 		    } else if( g_strncasecmp( buf, "subdevice ", 10 ) == 0 ) {

   241 			maple_subdevice = strtoul( buf+10, NULL, 0 );

   242 			if( maple_device == -1 ) {

   243 			    ERROR( "Subdevice not allowed without primary device" );

   244 			} else if( maple_subdevice < 1 || maple_subdevice > 5 ) {

   245 			    ERROR( "Subdevice must be between 1..5 (not '%s')", buf+10 );

   246 			} else if( (device = maple_new_device(value)) == NULL ) {

   247 			    ERROR( "Unrecognized subdevice '%s'", value );

   248 			} else {

   249 			    devgroup.key = "controllers";

   250 			    devgroup.params = maple_get_device_config(device);

   251 			    maple_attach_device( device, maple_device, maple_subdevice );

   252 			    group = &devgroup;

   253 			}

   254 			continue;

   255 		    }

   256 		}

   257 		while( param->key != NULL ) {

   258 		    if( strcasecmp( param->key, buf ) == 0 ) {

   259 			param->value = g_strdup(value);

   260 			break;

   261 		    }

   262 		    param++;

   263 		}

   264 	    }

   265 	}

   266     }

   267     return TRUE;

   268 }

   269 

   270 gboolean lxdream_save_config_file( const gchar *filename )

   271 {

   272     FILE *f = fopen(filename, "wo");

   273     gboolean result;

   274     if( f == NULL ) {

   275 	ERROR( "Unable to open '%s': %s", filename, strerror(errno) );

   276 	return FALSE;

   277     }

   278     result = lxdream_save_config_stream(f);

   279     fclose(f);

   280     return TRUE;

   281 }    

   282 

   283 gboolean lxdream_save_config_stream( FILE *f )

   284 {

   285     struct lxdream_config_group *group = &lxdream_config_root[0];

   286     

   287     while( group->key != NULL ) {

   288 	struct lxdream_config_entry *entry = group->params;

   289 	fprintf( f, "[%s]\n", group->key );

   290 	

   291 	if( entry != NULL ) {

   292 	    while( entry->key != NULL ) {

   293 		fprintf( f, "%s = %s\n", entry->key, entry->value );

   294 		entry++;

   295 	    }

   296 	} else if( strcmp(group->key, "controllers") == 0 ) {

   297 	    int i,j;

   298 	    for( i=0; i<4; i++ ) {

   299 		for( j=0; j<6; j++ ) {

   300 		    maple_device_t dev = maple_get_device( i, j );

   301 		    if( dev != NULL ) {

   302 			if( j == 0 )

   303 			    fprintf( f, "Device %d = %s\n", i, dev->device_class->name );

   304 			else 

   305 			    fprintf( f, "Subdevice %d = %s\n", j, dev->device_class->name );

   306 			entry = dev->get_config(dev);

   307 			while( entry->key != NULL ) {

   308 			    fprintf( f, "%*c%s = %s\n", j==0?4:8, ' ',entry->key, entry->value );

   309 			    entry++;

   310 			}

   311 		    }

   312 		}

   313 	    }

   314 	}

   315 	fprintf( f, "\n" );

   316 	group++;

   317     }

   318     return TRUE;

   319 }
.