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lxdream.org :: lxdream/src/config.c
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filename src/config.c
changeset 643:653b0a70f173
prev608:4f588e52bce0
next724:f2bc1c7cca14
author nkeynes
date Wed Jun 25 22:50:41 2008 +0000 (15 years ago)
permissions -rw-r--r--
last change Fix size test before end-of-block extension, and add assert after sh4_translate_end_block() for consistency
view annotate diff log raw 
     1 /**

     2  * $Id$

     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/gmem.h>

    25 #include <glib/gstrfuncs.h>

    26 #include "dream.h"

    27 #include "config.h"

    28 #include "maple/maple.h"

    29 

    30 

    31 extern struct lxdream_config_entry alsa_config[];

    32 

    33 gboolean lxdream_load_config_file( const gchar *filename );

    34 gboolean lxdream_save_config_file( const gchar *filename );

    35 gboolean lxdream_load_config_stream( FILE *f );

    36 gboolean lxdream_save_config_stream( FILE *f );

    37 

    38 static struct lxdream_config_entry global_config[] =

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

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

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

    42      { "save path", CONFIG_TYPE_PATH, "save" },

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

    44      { "gdrom", CONFIG_TYPE_FILE, NULL },

    45      { "recent", CONFIG_TYPE_FILE, NULL },

    46      { NULL, CONFIG_TYPE_NONE }};

    47 

    48 static struct lxdream_config_entry serial_config[] =

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

    50      { NULL, CONFIG_TYPE_NONE }};

    51 

    52 struct lxdream_config_group lxdream_config_root[] = 

    53     {{ "global", global_config },

    54      { "controllers", NULL },

    55      { "serial", serial_config },

    56 #ifdef HAVE_ALSA

    57      { "alsa", alsa_config },

    58 #endif

    59      { NULL, CONFIG_TYPE_NONE }};

    60 

    61 static gchar *lxdream_config_load_filename = NULL;

    62 static gchar *lxdream_config_save_filename = NULL;

    63 

    64 gboolean lxdream_find_config()

    65 {

    66     gboolean result = TRUE;

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

    68     if( lxdream_config_save_filename == NULL ) {

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

    70     }

    71     if( lxdream_config_load_filename == NULL ) {

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

    73 	    lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

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

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

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

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

    78 	} else {

    79 	    lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

    80 	    result = FALSE;

    81 	}	

    82     }

    83     return result;

    84 }

    85 

    86 void lxdream_set_config_filename( const gchar *filename )

    87 {

    88     if( lxdream_config_load_filename != NULL ) {

    89 	g_free(lxdream_config_load_filename);

    90     }

    91     lxdream_config_load_filename = g_strdup(filename);

    92     if( lxdream_config_save_filename != NULL ) {

    93 	g_free(lxdream_config_save_filename);

    94     }

    95     lxdream_config_save_filename = g_strdup(filename);

    96 }

    97 

    98 void lxdream_set_default_config( )

    99 {

   100     struct lxdream_config_group *group = lxdream_config_root;

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

   102 	struct lxdream_config_entry *param = group->params;

   103 	if( param != NULL ) {

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

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

   106 		    if( param->value != NULL )

   107 			free( param->value );

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

   109 		}

   110 		param++;

   111 	    }

   112 	}

   113 	group++;

   114     }

   115     maple_detach_all();

   116 }

   117 

   118 const gchar *lxdream_get_config_value( int key )

   119 {

   120     return global_config[key].value;

   121 }

   122 

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

   124 {

   125     if( param->value != value ) {

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

   127 	    free( param->value );

   128 	}

   129 	param->value = g_strdup(value);

   130     }

   131 }

   132 

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

   134 {

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

   136 }

   137 

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

   139 {

   140     int i;

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

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

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

   144 	    return TRUE;

   145 	}

   146     }

   147     return FALSE;

   148 }

   149 

   150 void lxdream_copy_config_list( lxdream_config_entry_t dest, lxdream_config_entry_t src )

   151 {

   152     int i;

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

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

   155     }

   156 }

   157 

   158 gboolean lxdream_load_config( )

   159 {

   160     if( lxdream_config_load_filename == NULL ) {

   161 	lxdream_find_config();

   162     }

   163     return lxdream_load_config_file(lxdream_config_load_filename);

   164 }

   165 

   166 gboolean lxdream_save_config( )

   167 {

   168     if( lxdream_config_save_filename == NULL ) {

   169 	lxdream_find_config();

   170     }

   171     return lxdream_save_config_file(lxdream_config_save_filename);

   172 }

   173 

   174 gboolean lxdream_load_config_file( const gchar *filename )

   175 {

   176     FILE *f;

   177     gboolean result;

   178 

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

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

   181 	lxdream_set_default_config();

   182 	lxdream_save_config();

   183     }

   184 

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

   186     if( f == NULL ) {

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

   188 	lxdream_set_default_config();

   189 	return FALSE;

   190     }

   191 

   192     result = lxdream_load_config_stream( f );

   193     fclose(f);

   194     return result;

   195 }

   196 

   197 gboolean lxdream_load_config_stream( FILE *f )

   198 {

   199 

   200     char buf[512];

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

   202     struct lxdream_config_group devgroup;

   203     struct lxdream_config_group *group = NULL;

   204     maple_device_t device = NULL;

   205     lxdream_set_default_config();

   206 

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

   208 	g_strstrip(buf);

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

   210 	    continue;

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

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

   213 	    if( p != NULL ) {

   214 		struct lxdream_config_group *tmp_group;

   215 		maple_device = maple_subdevice = -1;

   216 		*p = '\0';

   217 		g_strstrip(buf+1);

   218 		tmp_group = &lxdream_config_root[0];

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

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

   221 			group = tmp_group;

   222 			break;

   223 		    }

   224 		    tmp_group++;

   225 		}

   226 	    }

   227 	} else if( group != NULL ) {

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

   229 	    if( value != NULL ) {

   230 		struct lxdream_config_entry *param = group->params;

   231 		*value = '\0';

   232 		value++;

   233 		g_strstrip(buf);

   234 		g_strstrip(value);

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

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

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

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

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

   240 			    continue;

   241 			}

   242 			maple_subdevice = 0;

   243 			device = maple_new_device( value );

   244 			if( device == NULL ) {

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

   246 			} else {

   247 			    devgroup.key = "controllers";

   248 			    devgroup.params = maple_get_device_config(device);

   249 			    maple_attach_device( device, maple_device, maple_subdevice );

   250 			    group = &devgroup;

   251 			}

   252 			continue;

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

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

   255 			if( maple_device == -1 ) {

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

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

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

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

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

   261 			} else {

   262 			    devgroup.key = "controllers";

   263 			    devgroup.params = maple_get_device_config(device);

   264 			    maple_attach_device( device, maple_device, maple_subdevice );

   265 			    group = &devgroup;

   266 			}

   267 			continue;

   268 		    }

   269 		}

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

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

   272 			param->value = g_strdup(value);

   273 			break;

   274 		    }

   275 		    param++;

   276 		}

   277 	    }

   278 	}

   279     }

   280     return TRUE;

   281 }

   282 

   283 gboolean lxdream_save_config_file( const gchar *filename )

   284 {

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

   286     gboolean result;

   287     if( f == NULL ) {

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

   289 	return FALSE;

   290     }

   291     result = lxdream_save_config_stream(f);

   292     fclose(f);

   293     return TRUE;

   294 }    

   295 

   296 gboolean lxdream_save_config_stream( FILE *f )

   297 {

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

   299     

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

   301 	struct lxdream_config_entry *entry = group->params;

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

   303 	

   304 	if( entry != NULL ) {

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

   306 		if( entry->value != NULL ) {

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

   308 		}

   309 		entry++;

   310 	    }

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

   312 	    int i,j;

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

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

   315 		    maple_device_t dev = maple_get_device( i, j );

   316 		    if( dev != NULL ) {

   317 			if( j == 0 )

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

   319 			else 

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

   321 			if( dev->get_config != NULL && ((entry = dev->get_config(dev)) != NULL) ) {

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

   323 				if( entry->value != NULL ) {

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

   325 				}

   326 				entry++;

   327 			    }

   328 			}

   329 		    }

   330 		}

   331 	    }

   332 	}

   333 	fprintf( f, "\n" );

   334 	group++;

   335     }

   336     return TRUE;

   337 }
.