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lxdream.org :: lxdream/src/config.c
lxdream 0.9.1
released Jun 29
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filename src/config.c
changeset 1015:ad448bedc48a
prev866:86cd01c2b2d3
next1024:c67f2d61ab97
author nkeynes
date Tue Jun 02 23:16:26 2009 +0000 (13 years ago)
permissions -rw-r--r--
last change "MythTV" patch from Wahrhaft, thanks!:
* Add support for LIRC input devices
* Add hotkey input support
* Add command-line option for immediate fullscreen
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     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  */
    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"
    31 extern struct lxdream_config_entry alsa_config[];
    32 extern struct lxdream_config_entry hotkeys_config[];
    34 gboolean lxdream_load_config_file( const gchar *filename );
    35 gboolean lxdream_save_config_file( const gchar *filename );
    36 gboolean lxdream_load_config_stream( FILE *f );
    37 gboolean lxdream_save_config_stream( FILE *f );
    39 static struct lxdream_config_entry global_config[] =
    40        {{ "bios", N_("Bios ROM"), CONFIG_TYPE_FILE, "dcboot.rom" },
    41         { "flash", N_("Flash ROM"), CONFIG_TYPE_FILE, "dcflash.rom" },
    42         { "default path", N_("Default disc path"), CONFIG_TYPE_PATH, "." },
    43         { "save path", N_("Save-state path"), CONFIG_TYPE_PATH, "save" },
    44         { "bootstrap", N_("Bootstrap IP.BIN"), CONFIG_TYPE_FILE, "IP.BIN" },
    45         { "gdrom", NULL, CONFIG_TYPE_FILE, NULL },
    46         { "recent", NULL, CONFIG_TYPE_FILE, NULL },
    47         { NULL, CONFIG_TYPE_NONE }};
    49 static struct lxdream_config_entry serial_config[] =
    50        {{ "device", N_("Serial device"), CONFIG_TYPE_FILE, "/dev/ttyS1" },
    51         { NULL, CONFIG_TYPE_NONE }};
    53 struct lxdream_config_group lxdream_config_root[] = 
    54        {{ "global", global_config },
    55         { "controllers", NULL },
    56         { "hotkeys", hotkeys_config },
    57         { "serial", serial_config },
    58 #ifdef HAVE_ALSA
    59         { "alsa", alsa_config },
    60 #endif
    61         { NULL, CONFIG_TYPE_NONE }};
    63 static gchar *lxdream_config_load_filename = NULL;
    64 static gchar *lxdream_config_save_filename = NULL;
    66 gboolean lxdream_find_config()
    67 {
    68     gboolean result = TRUE;
    69     char *home = getenv("HOME");
    70     if( lxdream_config_save_filename == NULL ) {
    71         lxdream_config_save_filename = g_strdup_printf("%s/.%s", home, DEFAULT_CONFIG_FILENAME);
    72     }
    73     if( lxdream_config_load_filename == NULL ) {
    74         char *sysconfig = g_strdup_printf("%s/%s", get_sysconf_path(), DEFAULT_CONFIG_FILENAME);
    75         if( access(lxdream_config_save_filename, R_OK) == 0 ) {
    76             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);
    77             g_free(sysconfig);
    78         } else if( access( sysconfig, R_OK ) == 0 ) {
    79             lxdream_config_load_filename = sysconfig;
    80         } else if( access( "./" DEFAULT_CONFIG_FILENAME, R_OK ) == 0 ) {
    81             lxdream_config_load_filename = g_strdup("./" DEFAULT_CONFIG_FILENAME);
    82             g_free(sysconfig);
    83         } else {
    84             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);
    85             g_free(sysconfig);
    86             result = FALSE;
    87         }	
    88     }
    89     return result;
    90 }
    92 void lxdream_set_config_filename( const gchar *filename )
    93 {
    94     if( lxdream_config_load_filename != NULL ) {
    95         g_free(lxdream_config_load_filename);
    96     }
    97     lxdream_config_load_filename = g_strdup(filename);
    98     if( lxdream_config_save_filename != NULL ) {
    99         g_free(lxdream_config_save_filename);
   100     }
   101     lxdream_config_save_filename = g_strdup(filename);
   102 }
   104 void lxdream_set_default_config( )
   105 {
   106     struct lxdream_config_group *group = lxdream_config_root;
   107     while( group->key != NULL ) {
   108         struct lxdream_config_entry *param = group->params;
   109         if( param != NULL ) {
   110             while( param->key != NULL ) {
   111                 if( param->value != param->default_value ) {
   112                     if( param->value != NULL )
   113                         free( param->value );
   114                     param->value = (gchar *)param->default_value;
   115                 }
   116                 param++;
   117             }
   118         }
   119         group++;
   120     }
   121     maple_detach_all();
   122 }
   124 const gchar *lxdream_get_config_value( int key )
   125 {
   126     return global_config[key].value;
   127 }
   129 void lxdream_set_config_value( lxdream_config_entry_t param, const gchar *value )
   130 {
   131     if( param->value != value ) {
   132         if( param->value != param->default_value && param->value != NULL ) {
   133             free( param->value );
   134         }
   135         param->value = g_strdup(value);
   136     }
   137 }
   139 void lxdream_set_global_config_value( int key, const gchar *value )
   140 {
   141     lxdream_set_config_value(&global_config[key], value);
   142 }
   144 const struct lxdream_config_entry * lxdream_get_config_entry( int key )
   145 {
   146     return &global_config[key];
   147 }
   149 gboolean lxdream_set_group_value( lxdream_config_group_t group, const gchar *key, const gchar *value )
   150 {
   151     int i;
   152     for( i=0; group->params[i].key != NULL; i++ ) {
   153         if( strcasecmp( group->params[i].key, key ) == 0 ) {
   154             lxdream_set_config_value( &group->params[i], value );
   155             return TRUE;
   156         }
   157     }
   158     return FALSE;
   159 }
   161 void lxdream_copy_config_list( lxdream_config_entry_t dest, lxdream_config_entry_t src )
   162 {
   163     int i;
   164     for( i=0; src[i].key != NULL; i++ ) {
   165         lxdream_set_config_value( &dest[i], src[i].value );
   166     }
   167 }
   169 gboolean lxdream_load_config( )
   170 {
   171     if( lxdream_config_load_filename == NULL ) {
   172         lxdream_find_config();
   173     }
   174     return lxdream_load_config_file(lxdream_config_load_filename);
   175 }
   177 gboolean lxdream_save_config( )
   178 {
   179     if( lxdream_config_save_filename == NULL ) {
   180         lxdream_find_config();
   181     }
   182     return lxdream_save_config_file(lxdream_config_save_filename);
   183 }
   185 gboolean lxdream_load_config_file( const gchar *filename )
   186 {
   187     FILE *f;
   188     gboolean result;
   190     if( access(filename, F_OK) != 0 ) {
   191         INFO( "Configuration file '%s' does not exist, creating from defaults" );
   192         lxdream_set_default_config();
   193         lxdream_save_config();
   194     }
   196     f = fopen(filename, "ro");
   197     if( f == NULL ) {
   198         ERROR( "Unable to open configuration file '%s': %s", filename, strerror(errno) );
   199         lxdream_set_default_config();
   200         return FALSE;
   201     }
   203     result = lxdream_load_config_stream( f );
   204     fclose(f);
   205     return result;
   206 }
   208 gboolean lxdream_load_config_stream( FILE *f )
   209 {
   211     char buf[512];
   212     int maple_device = -1, maple_subdevice = -1;
   213     struct lxdream_config_group devgroup;
   214     struct lxdream_config_group *group = NULL;
   215     maple_device_t device = NULL;
   216     lxdream_set_default_config();
   218     while( fgets( buf, sizeof(buf), f ) != NULL ) {
   219         g_strstrip(buf);
   220         if( buf[0] == '#' )
   221             continue;
   222         if( *buf == '[' ) {
   223             char *p = strchr(buf, ']');
   224             if( p != NULL ) {
   225                 struct lxdream_config_group *tmp_group;
   226                 maple_device = maple_subdevice = -1;
   227                 *p = '\0';
   228                 g_strstrip(buf+1);
   229                 tmp_group = &lxdream_config_root[0];
   230                 while( tmp_group->key != NULL ) {
   231                     if( strcasecmp(tmp_group->key, buf+1) == 0 ) {
   232                         group = tmp_group;
   233                         break;
   234                     }
   235                     tmp_group++;
   236                 }
   237             }
   238         } else if( group != NULL ) {
   239             char *value = strchr( buf, '=' );
   240             if( value != NULL ) {
   241                 struct lxdream_config_entry *param = group->params;
   242                 *value = '\0';
   243                 value++;
   244                 g_strstrip(buf);
   245                 g_strstrip(value);
   246                 if( strcmp(group->key,"controllers") == 0  ) {
   247                     if( g_strncasecmp( buf, "device ", 7 ) == 0 ) {
   248                         maple_device = strtoul( buf+7, NULL, 0 );
   249                         if( maple_device < 0 || maple_device > 3 ) {
   250                             ERROR( "Device number must be between 0..3 (not '%s')", buf+7);
   251                             continue;
   252                         }
   253                         maple_subdevice = 0;
   254                         device = maple_new_device( value );
   255                         if( device == NULL ) {
   256                             ERROR( "Unrecognized device '%s'", value );
   257                         } else {
   258                             devgroup.key = "controllers";
   259                             devgroup.params = maple_get_device_config(device);
   260                             maple_attach_device( device, maple_device, maple_subdevice );
   261                             group = &devgroup;
   262                         }
   263                         continue;
   264                     } else if( g_strncasecmp( buf, "subdevice ", 10 ) == 0 ) {
   265                         maple_subdevice = strtoul( buf+10, NULL, 0 );
   266                         if( maple_device == -1 ) {
   267                             ERROR( "Subdevice not allowed without primary device" );
   268                         } else if( maple_subdevice < 1 || maple_subdevice > 5 ) {
   269                             ERROR( "Subdevice must be between 1..5 (not '%s')", buf+10 );
   270                         } else if( (device = maple_new_device(value)) == NULL ) {
   271                             ERROR( "Unrecognized subdevice '%s'", value );
   272                         } else {
   273                             devgroup.key = "controllers";
   274                             devgroup.params = maple_get_device_config(device);
   275                             maple_attach_device( device, maple_device, maple_subdevice );
   276                             group = &devgroup;
   277                         }
   278                         continue;
   279                     }
   280                 }
   281                 while( param->key != NULL ) {
   282                     if( strcasecmp( param->key, buf ) == 0 ) {
   283                         param->value = g_strdup(value);
   284                         break;
   285                     }
   286                     param++;
   287                 }
   288             }
   289         }
   290     }
   291     return TRUE;
   292 }
   294 gboolean lxdream_save_config_file( const gchar *filename )
   295 {
   296     FILE *f = fopen(filename, "wo");
   297     gboolean result;
   298     if( f == NULL ) {
   299         ERROR( "Unable to open '%s': %s", filename, strerror(errno) );
   300         return FALSE;
   301     }
   302     result = lxdream_save_config_stream(f);
   303     fclose(f);
   304     return TRUE;
   305 }    
   307 gboolean lxdream_save_config_stream( FILE *f )
   308 {
   309     struct lxdream_config_group *group = &lxdream_config_root[0];
   311     while( group->key != NULL ) {
   312         struct lxdream_config_entry *entry = group->params;
   313         fprintf( f, "[%s]\n", group->key );
   315         if( entry != NULL ) {
   316             while( entry->key != NULL ) {
   317                 if( entry->value != NULL ) {
   318                     fprintf( f, "%s = %s\n", entry->key, entry->value );
   319                 }
   320                 entry++;
   321             }
   322         } else if( strcmp(group->key, "controllers") == 0 ) {
   323             int i,j;
   324             for( i=0; i<4; i++ ) {
   325                 for( j=0; j<6; j++ ) {
   326                     maple_device_t dev = maple_get_device( i, j );
   327                     if( dev != NULL ) {
   328                         if( j == 0 )
   329                             fprintf( f, "Device %d = %s\n", i, dev->device_class->name );
   330                         else 
   331                             fprintf( f, "Subdevice %d = %s\n", j, dev->device_class->name );
   332                         if( dev->get_config != NULL && ((entry = dev->get_config(dev)) != NULL) ) {
   333                             while( entry->key != NULL ) {
   334                                 if( entry->value != NULL ) {
   335                                     fprintf( f, "%*c%s = %s\n", j==0?4:8, ' ',entry->key, entry->value );
   336                                 }
   337                                 entry++;
   338                             }
   339                         }
   340                     }
   341                 }
   342             }
   343         }
   344         fprintf( f, "\n" );
   345         group++;
   346     }
   347     return TRUE;
   348 }
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