Search
lxdream.org :: lxdream/src/config.c
lxdream 0.9.1
released Jun 29
Download Now
filename src/config.c
changeset 643:653b0a70f173
prev608:4f588e52bce0
next724:f2bc1c7cca14
author bhaal22
date Tue Feb 26 01:10:48 2008 +0000 (14 years ago)
permissions -rw-r--r--
last change Commit initial ALSA audio driver
Add init/shutdown stubs to audio driver structure
file annotate diff log raw
nkeynes@450
     1
/**
nkeynes@561
     2
 * $Id$
nkeynes@450
     3
 *
nkeynes@450
     4
 * User configuration support
nkeynes@450
     5
 *
nkeynes@450
     6
 * Copyright (c) 2005 Nathan Keynes.
nkeynes@450
     7
 *
nkeynes@450
     8
 * This program is free software; you can redistribute it and/or modify
nkeynes@450
     9
 * it under the terms of the GNU General Public License as published by
nkeynes@450
    10
 * the Free Software Foundation; either version 2 of the License, or
nkeynes@450
    11
 * (at your option) any later version.
nkeynes@450
    12
 *
nkeynes@450
    13
 * This program is distributed in the hope that it will be useful,
nkeynes@450
    14
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@450
    15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@450
    16
 * GNU General Public License for more details.
nkeynes@450
    17
 */
nkeynes@450
    18
nkeynes@450
    19
#include <unistd.h>
nkeynes@450
    20
#include <stdio.h>
nkeynes@450
    21
#include <errno.h>
nkeynes@450
    22
#include <stdlib.h>
nkeynes@450
    23
#include <string.h>
nkeynes@480
    24
#include <glib/gmem.h>
nkeynes@450
    25
#include <glib/gstrfuncs.h>
nkeynes@450
    26
#include "dream.h"
nkeynes@450
    27
#include "config.h"
nkeynes@450
    28
#include "maple/maple.h"
nkeynes@450
    29
bhaal22@643
    30
bhaal22@643
    31
extern struct lxdream_config_entry alsa_config[];
bhaal22@643
    32
nkeynes@450
    33
gboolean lxdream_load_config_file( const gchar *filename );
nkeynes@450
    34
gboolean lxdream_save_config_file( const gchar *filename );
nkeynes@450
    35
gboolean lxdream_load_config_stream( FILE *f );
nkeynes@450
    36
gboolean lxdream_save_config_stream( FILE *f );
nkeynes@450
    37
nkeynes@450
    38
static struct lxdream_config_entry global_config[] =
nkeynes@450
    39
    {{ "bios", CONFIG_TYPE_FILE, "dcboot.rom" },
nkeynes@450
    40
     { "flash", CONFIG_TYPE_FILE, "dcflash.rom" },
nkeynes@450
    41
     { "default path", CONFIG_TYPE_PATH, "." },
nkeynes@450
    42
     { "save path", CONFIG_TYPE_PATH, "save" },
nkeynes@450
    43
     { "bootstrap", CONFIG_TYPE_FILE, "IP.BIN" },
nkeynes@464
    44
     { "gdrom", CONFIG_TYPE_FILE, NULL },
nkeynes@470
    45
     { "recent", CONFIG_TYPE_FILE, NULL },
nkeynes@450
    46
     { NULL, CONFIG_TYPE_NONE }};
nkeynes@450
    47
nkeynes@450
    48
static struct lxdream_config_entry serial_config[] =
nkeynes@450
    49
    {{ "device", CONFIG_TYPE_FILE, "/dev/ttyS1" },
nkeynes@450
    50
     { NULL, CONFIG_TYPE_NONE }};
nkeynes@450
    51
nkeynes@450
    52
struct lxdream_config_group lxdream_config_root[] = 
nkeynes@450
    53
    {{ "global", global_config },
nkeynes@450
    54
     { "controllers", NULL },
nkeynes@450
    55
     { "serial", serial_config },
bhaal22@643
    56
#ifdef HAVE_ALSA
bhaal22@643
    57
     { "alsa", alsa_config },
bhaal22@643
    58
#endif
nkeynes@450
    59
     { NULL, CONFIG_TYPE_NONE }};
nkeynes@450
    60
nkeynes@450
    61
static gchar *lxdream_config_load_filename = NULL;
nkeynes@450
    62
static gchar *lxdream_config_save_filename = NULL;
nkeynes@450
    63
nkeynes@450
    64
gboolean lxdream_find_config()
nkeynes@450
    65
{
nkeynes@480
    66
    gboolean result = TRUE;
nkeynes@450
    67
    char *home = getenv("HOME");
nkeynes@450
    68
    if( lxdream_config_save_filename == NULL ) {
nkeynes@450
    69
	lxdream_config_save_filename = g_strdup_printf("%s/.%s", home, DEFAULT_CONFIG_FILENAME);
nkeynes@450
    70
    }
nkeynes@450
    71
    if( lxdream_config_load_filename == NULL ) {
nkeynes@450
    72
	if( access(lxdream_config_save_filename, R_OK) == 0 ) {
nkeynes@450
    73
	    lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);
nkeynes@450
    74
	} else if( access( PACKAGE_CONF_DIR "/" DEFAULT_CONFIG_FILENAME, R_OK ) == 0 ) {
nkeynes@450
    75
	    lxdream_config_load_filename = g_strdup(PACKAGE_CONF_DIR "/" DEFAULT_CONFIG_FILENAME);
nkeynes@450
    76
	} else if( access( "./" DEFAULT_CONFIG_FILENAME, R_OK ) == 0 ) {
nkeynes@450
    77
	    lxdream_config_load_filename = g_strdup("./" DEFAULT_CONFIG_FILENAME);
nkeynes@450
    78
	} else {
nkeynes@450
    79
	    lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);
nkeynes@480
    80
	    result = FALSE;
nkeynes@450
    81
	}	
nkeynes@480
    82
    }
nkeynes@480
    83
    return result;
nkeynes@450
    84
}
nkeynes@450
    85
nkeynes@450
    86
void lxdream_set_config_filename( const gchar *filename )
nkeynes@450
    87
{
nkeynes@450
    88
    if( lxdream_config_load_filename != NULL ) {
nkeynes@450
    89
	g_free(lxdream_config_load_filename);
nkeynes@450
    90
    }
nkeynes@450
    91
    lxdream_config_load_filename = g_strdup(filename);
nkeynes@450
    92
    if( lxdream_config_save_filename != NULL ) {
nkeynes@450
    93
	g_free(lxdream_config_save_filename);
nkeynes@450
    94
    }
nkeynes@450
    95
    lxdream_config_save_filename = g_strdup(filename);
nkeynes@450
    96
}
nkeynes@450
    97
nkeynes@450
    98
void lxdream_set_default_config( )
nkeynes@450
    99
{
nkeynes@450
   100
    struct lxdream_config_group *group = lxdream_config_root;
nkeynes@450
   101
    while( group->key != NULL ) {
nkeynes@450
   102
	struct lxdream_config_entry *param = group->params;
nkeynes@450
   103
	if( param != NULL ) {
nkeynes@450
   104
	    while( param->key != NULL ) {
nkeynes@450
   105
		if( param->value != param->default_value ) {
nkeynes@450
   106
		    if( param->value != NULL )
nkeynes@450
   107
			free( param->value );
nkeynes@450
   108
		    param->value = (gchar *)param->default_value;
nkeynes@450
   109
		}
nkeynes@450
   110
		param++;
nkeynes@450
   111
	    }
nkeynes@450
   112
	}
nkeynes@450
   113
	group++;
nkeynes@450
   114
    }
nkeynes@450
   115
    maple_detach_all();
nkeynes@450
   116
}
nkeynes@450
   117
nkeynes@450
   118
const gchar *lxdream_get_config_value( int key )
nkeynes@450
   119
{
nkeynes@450
   120
    return global_config[key].value;
nkeynes@450
   121
}
nkeynes@450
   122
nkeynes@460
   123
void lxdream_set_config_value( lxdream_config_entry_t param, const gchar *value )
nkeynes@450
   124
{
nkeynes@475
   125
    if( param->value != value ) {
nkeynes@475
   126
	if( param->value != param->default_value && param->value != NULL ) {
nkeynes@475
   127
	    free( param->value );
nkeynes@475
   128
	}
nkeynes@475
   129
	param->value = g_strdup(value);
nkeynes@450
   130
    }
nkeynes@450
   131
}
nkeynes@450
   132
nkeynes@460
   133
void lxdream_set_global_config_value( int key, const gchar *value )
nkeynes@460
   134
{
nkeynes@460
   135
    lxdream_set_config_value(&global_config[key], value);
nkeynes@460
   136
}
nkeynes@460
   137
nkeynes@458
   138
gboolean lxdream_set_group_value( lxdream_config_group_t group, const gchar *key, const gchar *value )
nkeynes@458
   139
{
nkeynes@458
   140
    int i;
nkeynes@458
   141
    for( i=0; group->params[i].key != NULL; i++ ) {
nkeynes@458
   142
	if( strcasecmp( group->params[i].key, key ) == 0 ) {
nkeynes@460
   143
	    lxdream_set_config_value( &group->params[i], value );
nkeynes@458
   144
	    return TRUE;
nkeynes@458
   145
	}
nkeynes@458
   146
    }
nkeynes@458
   147
    return FALSE;
nkeynes@458
   148
}
nkeynes@458
   149
nkeynes@460
   150
void lxdream_copy_config_list( lxdream_config_entry_t dest, lxdream_config_entry_t src )
nkeynes@460
   151
{
nkeynes@460
   152
    int i;
nkeynes@460
   153
    for( i=0; src[i].key != NULL; i++ ) {
nkeynes@460
   154
	lxdream_set_config_value( &dest[i], src[i].value );
nkeynes@460
   155
    }
nkeynes@460
   156
}
nkeynes@460
   157
nkeynes@450
   158
gboolean lxdream_load_config( )
nkeynes@450
   159
{
nkeynes@450
   160
    if( lxdream_config_load_filename == NULL ) {
nkeynes@450
   161
	lxdream_find_config();
nkeynes@450
   162
    }
nkeynes@450
   163
    return lxdream_load_config_file(lxdream_config_load_filename);
nkeynes@450
   164
}
nkeynes@450
   165
nkeynes@450
   166
gboolean lxdream_save_config( )
nkeynes@450
   167
{
nkeynes@450
   168
    if( lxdream_config_save_filename == NULL ) {
nkeynes@450
   169
	lxdream_find_config();
nkeynes@450
   170
    }
nkeynes@450
   171
    return lxdream_save_config_file(lxdream_config_save_filename);
nkeynes@450
   172
}
nkeynes@450
   173
nkeynes@450
   174
gboolean lxdream_load_config_file( const gchar *filename )
nkeynes@450
   175
{
nkeynes@450
   176
    FILE *f;
nkeynes@450
   177
    gboolean result;
nkeynes@450
   178
nkeynes@450
   179
    if( access(filename, F_OK) != 0 ) {
nkeynes@450
   180
	INFO( "Configuration file '%s' does not exist, creating from defaults" );
nkeynes@450
   181
	lxdream_set_default_config();
nkeynes@450
   182
	lxdream_save_config();
nkeynes@450
   183
    }
nkeynes@450
   184
nkeynes@450
   185
    f = fopen(filename, "ro");
nkeynes@450
   186
    if( f == NULL ) {
nkeynes@450
   187
	ERROR( "Unable to open configuration file '%s': %s", filename, strerror(errno) );
nkeynes@450
   188
	lxdream_set_default_config();
nkeynes@450
   189
	return FALSE;
nkeynes@450
   190
    }
nkeynes@450
   191
nkeynes@450
   192
    result = lxdream_load_config_stream( f );
nkeynes@450
   193
    fclose(f);
nkeynes@450
   194
    return result;
nkeynes@450
   195
}
nkeynes@450
   196
nkeynes@450
   197
gboolean lxdream_load_config_stream( FILE *f )
nkeynes@450
   198
{
nkeynes@450
   199
nkeynes@450
   200
    char buf[512];
nkeynes@450
   201
    int maple_device = -1, maple_subdevice = -1;
nkeynes@450
   202
    struct lxdream_config_group devgroup;
nkeynes@450
   203
    struct lxdream_config_group *group = NULL;
nkeynes@450
   204
    maple_device_t device = NULL;
nkeynes@450
   205
    lxdream_set_default_config();
nkeynes@450
   206
nkeynes@450
   207
    while( fgets( buf, sizeof(buf), f ) != NULL ) {
nkeynes@450
   208
	g_strstrip(buf);
nkeynes@450
   209
	if( buf[0] == '#' )
nkeynes@450
   210
	    continue;
nkeynes@450
   211
	if( *buf == '[' ) {
nkeynes@450
   212
	    char *p = strchr(buf, ']');
nkeynes@450
   213
	    if( p != NULL ) {
nkeynes@450
   214
		struct lxdream_config_group *tmp_group;
nkeynes@450
   215
		maple_device = maple_subdevice = -1;
nkeynes@450
   216
		*p = '\0';
nkeynes@450
   217
		g_strstrip(buf+1);
nkeynes@450
   218
		tmp_group = &lxdream_config_root[0];
nkeynes@450
   219
		while( tmp_group->key != NULL ) {
nkeynes@450
   220
		    if( strcasecmp(tmp_group->key, buf+1) == 0 ) {
nkeynes@450
   221
			group = tmp_group;
nkeynes@450
   222
			break;
nkeynes@450
   223
		    }
nkeynes@450
   224
		    tmp_group++;
nkeynes@450
   225
		}
nkeynes@450
   226
	    }
nkeynes@450
   227
	} else if( group != NULL ) {
nkeynes@450
   228
	    char *value = strchr( buf, '=' );
nkeynes@450
   229
	    if( value != NULL ) {
nkeynes@450
   230
		struct lxdream_config_entry *param = group->params;
nkeynes@450
   231
		*value = '\0';
nkeynes@450
   232
		value++;
nkeynes@450
   233
		g_strstrip(buf);
nkeynes@450
   234
		g_strstrip(value);
nkeynes@450
   235
		if( strcmp(group->key,"controllers") == 0  ) {
nkeynes@450
   236
		    if( g_strncasecmp( buf, "device ", 7 ) == 0 ) {
nkeynes@450
   237
			maple_device = strtoul( buf+7, NULL, 0 );
nkeynes@450
   238
			if( maple_device < 0 || maple_device > 3 ) {
nkeynes@450
   239
			    ERROR( "Device number must be between 0..3 (not '%s')", buf+7);
nkeynes@450
   240
			    continue;
nkeynes@450
   241
			}
nkeynes@450
   242
			maple_subdevice = 0;
nkeynes@450
   243
			device = maple_new_device( value );
nkeynes@450
   244
			if( device == NULL ) {
nkeynes@450
   245
			    ERROR( "Unrecognized device '%s'", value );
nkeynes@450
   246
			} else {
nkeynes@450
   247
			    devgroup.key = "controllers";
nkeynes@450
   248
			    devgroup.params = maple_get_device_config(device);
nkeynes@450
   249
			    maple_attach_device( device, maple_device, maple_subdevice );
nkeynes@450
   250
			    group = &devgroup;
nkeynes@450
   251
			}
nkeynes@450
   252
			continue;
nkeynes@450
   253
		    } else if( g_strncasecmp( buf, "subdevice ", 10 ) == 0 ) {
nkeynes@450
   254
			maple_subdevice = strtoul( buf+10, NULL, 0 );
nkeynes@450
   255
			if( maple_device == -1 ) {
nkeynes@450
   256
			    ERROR( "Subdevice not allowed without primary device" );
nkeynes@450
   257
			} else if( maple_subdevice < 1 || maple_subdevice > 5 ) {
nkeynes@450
   258
			    ERROR( "Subdevice must be between 1..5 (not '%s')", buf+10 );
nkeynes@450
   259
			} else if( (device = maple_new_device(value)) == NULL ) {
nkeynes@450
   260
			    ERROR( "Unrecognized subdevice '%s'", value );
nkeynes@450
   261
			} else {
nkeynes@450
   262
			    devgroup.key = "controllers";
nkeynes@450
   263
			    devgroup.params = maple_get_device_config(device);
nkeynes@450
   264
			    maple_attach_device( device, maple_device, maple_subdevice );
nkeynes@450
   265
			    group = &devgroup;
nkeynes@450
   266
			}
nkeynes@450
   267
			continue;
nkeynes@450
   268
		    }
nkeynes@450
   269
		}
nkeynes@450
   270
		while( param->key != NULL ) {
nkeynes@450
   271
		    if( strcasecmp( param->key, buf ) == 0 ) {
nkeynes@450
   272
			param->value = g_strdup(value);
nkeynes@450
   273
			break;
nkeynes@450
   274
		    }
nkeynes@450
   275
		    param++;
nkeynes@450
   276
		}
nkeynes@450
   277
	    }
nkeynes@450
   278
	}
nkeynes@450
   279
    }
nkeynes@450
   280
    return TRUE;
nkeynes@450
   281
}
nkeynes@450
   282
nkeynes@450
   283
gboolean lxdream_save_config_file( const gchar *filename )
nkeynes@450
   284
{
nkeynes@450
   285
    FILE *f = fopen(filename, "wo");
nkeynes@450
   286
    gboolean result;
nkeynes@450
   287
    if( f == NULL ) {
nkeynes@450
   288
	ERROR( "Unable to open '%s': %s", filename, strerror(errno) );
nkeynes@450
   289
	return FALSE;
nkeynes@450
   290
    }
nkeynes@450
   291
    result = lxdream_save_config_stream(f);
nkeynes@450
   292
    fclose(f);
nkeynes@450
   293
    return TRUE;
nkeynes@450
   294
}    
nkeynes@450
   295
nkeynes@450
   296
gboolean lxdream_save_config_stream( FILE *f )
nkeynes@450
   297
{
nkeynes@450
   298
    struct lxdream_config_group *group = &lxdream_config_root[0];
nkeynes@450
   299
    
nkeynes@450
   300
    while( group->key != NULL ) {
nkeynes@450
   301
	struct lxdream_config_entry *entry = group->params;
nkeynes@450
   302
	fprintf( f, "[%s]\n", group->key );
nkeynes@450
   303
	
nkeynes@450
   304
	if( entry != NULL ) {
nkeynes@450
   305
	    while( entry->key != NULL ) {
nkeynes@470
   306
		if( entry->value != NULL ) {
nkeynes@470
   307
		    fprintf( f, "%s = %s\n", entry->key, entry->value );
nkeynes@470
   308
		}
nkeynes@450
   309
		entry++;
nkeynes@450
   310
	    }
nkeynes@450
   311
	} else if( strcmp(group->key, "controllers") == 0 ) {
nkeynes@450
   312
	    int i,j;
nkeynes@450
   313
	    for( i=0; i<4; i++ ) {
nkeynes@450
   314
		for( j=0; j<6; j++ ) {
nkeynes@450
   315
		    maple_device_t dev = maple_get_device( i, j );
nkeynes@450
   316
		    if( dev != NULL ) {
nkeynes@450
   317
			if( j == 0 )
nkeynes@450
   318
			    fprintf( f, "Device %d = %s\n", i, dev->device_class->name );
nkeynes@450
   319
			else 
nkeynes@450
   320
			    fprintf( f, "Subdevice %d = %s\n", j, dev->device_class->name );
nkeynes@608
   321
			if( dev->get_config != NULL && ((entry = dev->get_config(dev)) != NULL) ) {
nkeynes@608
   322
			    while( entry->key != NULL ) {
nkeynes@608
   323
				if( entry->value != NULL ) {
nkeynes@608
   324
				    fprintf( f, "%*c%s = %s\n", j==0?4:8, ' ',entry->key, entry->value );
nkeynes@608
   325
				}
nkeynes@608
   326
				entry++;
nkeynes@470
   327
			    }
nkeynes@450
   328
			}
nkeynes@450
   329
		    }
nkeynes@450
   330
		}
nkeynes@450
   331
	    }
nkeynes@450
   332
	}
nkeynes@450
   333
	fprintf( f, "\n" );
nkeynes@450
   334
	group++;
nkeynes@450
   335
    }
nkeynes@450
   336
    return TRUE;
nkeynes@450
   337
}
.