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filename src/config.c
changeset 866:86cd01c2b2d3
prev759:f16975739abc
next1015:ad448bedc48a
author nkeynes
date Sun Oct 19 05:42:05 2008 +0000 (15 years ago)
permissions -rw-r--r--
last change Fix corner flag case with conditional delayed branches
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", N_("Bios ROM"), CONFIG_TYPE_FILE, "dcboot.rom" },

    40         { "flash", N_("Flash ROM"), CONFIG_TYPE_FILE, "dcflash.rom" },

    41         { "default path", N_("Default disc path"), CONFIG_TYPE_PATH, "." },

    42         { "save path", N_("Save-state path"), CONFIG_TYPE_PATH, "save" },

    43         { "bootstrap", N_("Bootstrap IP.BIN"), CONFIG_TYPE_FILE, "IP.BIN" },

    44         { "gdrom", NULL, CONFIG_TYPE_FILE, NULL },

    45         { "recent", NULL, CONFIG_TYPE_FILE, NULL },

    46         { NULL, CONFIG_TYPE_NONE }};

    47 

    48 static struct lxdream_config_entry serial_config[] =

    49        {{ "device", N_("Serial 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         char *sysconfig = g_strdup_printf("%s/%s", get_sysconf_path(), DEFAULT_CONFIG_FILENAME);

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

    74             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

    75             g_free(sysconfig);

    76         } else if( access( sysconfig, R_OK ) == 0 ) {

    77             lxdream_config_load_filename = sysconfig;

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

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

    80             g_free(sysconfig);

    81         } else {

    82             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

    83             g_free(sysconfig);

    84             result = FALSE;

    85         }	

    86     }

    87     return result;

    88 }

    89 

    90 void lxdream_set_config_filename( const gchar *filename )

    91 {

    92     if( lxdream_config_load_filename != NULL ) {

    93         g_free(lxdream_config_load_filename);

    94     }

    95     lxdream_config_load_filename = g_strdup(filename);

    96     if( lxdream_config_save_filename != NULL ) {

    97         g_free(lxdream_config_save_filename);

    98     }

    99     lxdream_config_save_filename = g_strdup(filename);

   100 }

   101 

   102 void lxdream_set_default_config( )

   103 {

   104     struct lxdream_config_group *group = lxdream_config_root;

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

   106         struct lxdream_config_entry *param = group->params;

   107         if( param != NULL ) {

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

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

   110                     if( param->value != NULL )

   111                         free( param->value );

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

   113                 }

   114                 param++;

   115             }

   116         }

   117         group++;

   118     }

   119     maple_detach_all();

   120 }

   121 

   122 const gchar *lxdream_get_config_value( int key )

   123 {

   124     return global_config[key].value;

   125 }

   126 

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

   128 {

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

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

   131             free( param->value );

   132         }

   133         param->value = g_strdup(value);

   134     }

   135 }

   136 

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

   138 {

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

   140 }

   141 

   142 const struct lxdream_config_entry * lxdream_get_config_entry( int key )

   143 {

   144     return &global_config[key];

   145 }

   146 

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

   148 {

   149     int i;

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

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

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

   153             return TRUE;

   154         }

   155     }

   156     return FALSE;

   157 }

   158 

   159 void lxdream_copy_config_list( lxdream_config_entry_t dest, lxdream_config_entry_t src )

   160 {

   161     int i;

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

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

   164     }

   165 }

   166 

   167 gboolean lxdream_load_config( )

   168 {

   169     if( lxdream_config_load_filename == NULL ) {

   170         lxdream_find_config();

   171     }

   172     return lxdream_load_config_file(lxdream_config_load_filename);

   173 }

   174 

   175 gboolean lxdream_save_config( )

   176 {

   177     if( lxdream_config_save_filename == NULL ) {

   178         lxdream_find_config();

   179     }

   180     return lxdream_save_config_file(lxdream_config_save_filename);

   181 }

   182 

   183 gboolean lxdream_load_config_file( const gchar *filename )

   184 {

   185     FILE *f;

   186     gboolean result;

   187 

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

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

   190         lxdream_set_default_config();

   191         lxdream_save_config();

   192     }

   193 

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

   195     if( f == NULL ) {

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

   197         lxdream_set_default_config();

   198         return FALSE;

   199     }

   200 

   201     result = lxdream_load_config_stream( f );

   202     fclose(f);

   203     return result;

   204 }

   205 

   206 gboolean lxdream_load_config_stream( FILE *f )

   207 {

   208 

   209     char buf[512];

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

   211     struct lxdream_config_group devgroup;

   212     struct lxdream_config_group *group = NULL;

   213     maple_device_t device = NULL;

   214     lxdream_set_default_config();

   215 

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

   217         g_strstrip(buf);

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

   219             continue;

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

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

   222             if( p != NULL ) {

   223                 struct lxdream_config_group *tmp_group;

   224                 maple_device = maple_subdevice = -1;

   225                 *p = '\0';

   226                 g_strstrip(buf+1);

   227                 tmp_group = &lxdream_config_root[0];

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

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

   230                         group = tmp_group;

   231                         break;

   232                     }

   233                     tmp_group++;

   234                 }

   235             }

   236         } else if( group != NULL ) {

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

   238             if( value != NULL ) {

   239                 struct lxdream_config_entry *param = group->params;

   240                 *value = '\0';

   241                 value++;

   242                 g_strstrip(buf);

   243                 g_strstrip(value);

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

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

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

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

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

   249                             continue;

   250                         }

   251                         maple_subdevice = 0;

   252                         device = maple_new_device( value );

   253                         if( device == NULL ) {

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

   255                         } else {

   256                             devgroup.key = "controllers";

   257                             devgroup.params = maple_get_device_config(device);

   258                             maple_attach_device( device, maple_device, maple_subdevice );

   259                             group = &devgroup;

   260                         }

   261                         continue;

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

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

   264                         if( maple_device == -1 ) {

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

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

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

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

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

   270                         } else {

   271                             devgroup.key = "controllers";

   272                             devgroup.params = maple_get_device_config(device);

   273                             maple_attach_device( device, maple_device, maple_subdevice );

   274                             group = &devgroup;

   275                         }

   276                         continue;

   277                     }

   278                 }

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

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

   281                         param->value = g_strdup(value);

   282                         break;

   283                     }

   284                     param++;

   285                 }

   286             }

   287         }

   288     }

   289     return TRUE;

   290 }

   291 

   292 gboolean lxdream_save_config_file( const gchar *filename )

   293 {

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

   295     gboolean result;

   296     if( f == NULL ) {

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

   298         return FALSE;

   299     }

   300     result = lxdream_save_config_stream(f);

   301     fclose(f);

   302     return TRUE;

   303 }    

   304 

   305 gboolean lxdream_save_config_stream( FILE *f )

   306 {

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

   308 

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

   310         struct lxdream_config_entry *entry = group->params;

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

   312 

   313         if( entry != NULL ) {

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

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

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

   317                 }

   318                 entry++;

   319             }

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

   321             int i,j;

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

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

   324                     maple_device_t dev = maple_get_device( i, j );

   325                     if( dev != NULL ) {

   326                         if( j == 0 )

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

   328                         else 

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

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

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

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

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

   334                                 }

   335                                 entry++;

   336                             }

   337                         }

   338                     }

   339                 }

   340             }

   341         }

   342         fprintf( f, "\n" );

   343         group++;

   344     }

   345     return TRUE;

   346 }
.