lxdream.org :: lxdream/src/config.c r1024:c67f2d61ab97

filename	src/config.c
changeset	1024:c67f2d61ab97
prev	1015:ad448bedc48a
next	1034:7044e01148f0
author	nkeynes
date	Sat Jun 13 00:50:48 2009 +0000 (12 years ago)
permissions	-rw-r--r--
last change	Build drivers with library dependencies as shared objects (ie plugins)

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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"

    30 #define MAX_ROOT_GROUPS 16

    32 extern struct lxdream_config_entry alsa_config[];

    33 extern struct lxdream_config_entry hotkeys_config[];

    35 gboolean lxdream_load_config_file( const gchar *filename );

    36 gboolean lxdream_save_config_file( const gchar *filename );

    37 gboolean lxdream_load_config_stream( FILE *f );

    38 gboolean lxdream_save_config_stream( FILE *f );

    40 static struct lxdream_config_entry global_config[] =

    41        {{ "bios", N_("Bios ROM"), CONFIG_TYPE_FILE, "dcboot.rom" },

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

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

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

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

    46         { "gdrom", NULL, CONFIG_TYPE_FILE, NULL },

    47         { "recent", NULL, CONFIG_TYPE_FILE, NULL },

    48         { NULL, CONFIG_TYPE_NONE }};

    50 static struct lxdream_config_entry serial_config[] =

    51        {{ "device", N_("Serial device"), CONFIG_TYPE_FILE, "/dev/ttyS1" },

    52         { NULL, CONFIG_TYPE_NONE }};

    54 struct lxdream_config_group lxdream_config_root[MAX_ROOT_GROUPS+1] =

    55        {{ "global", global_config },

    56         { "controllers", NULL },

    57         { "hotkeys", hotkeys_config },

    58         { "serial", serial_config },

    59         { NULL, CONFIG_TYPE_NONE }};

    61 static gchar *lxdream_config_load_filename = NULL;

    62 static gchar *lxdream_config_save_filename = NULL;

    64 void lxdream_register_config_group( const gchar *key, lxdream_config_entry_t group )

    65 {

    66     int i;

    67     for( i=0; i<MAX_ROOT_GROUPS; i++ ) {

    68         if( lxdream_config_root[i].key == NULL ) {

    69             lxdream_config_root[i].key = key;

    70             lxdream_config_root[i].params = group;

    71             lxdream_config_root[i+1].key = NULL;

    72             lxdream_config_root[i+1].params = CONFIG_TYPE_NONE;

    73             return;

    74         }

    75     }

    76     ERROR( "Unable to register config group '%s': Too many configuration groups", key );

    77 }

    79 gboolean lxdream_find_config()

    80 {

    81     gboolean result = TRUE;

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

    83     if( lxdream_config_save_filename == NULL ) {

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

    85     }

    86     if( lxdream_config_load_filename == NULL ) {

    87         char *sysconfig = g_strdup_printf("%s/%s", get_sysconf_path(), DEFAULT_CONFIG_FILENAME);

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

    89             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

    90             g_free(sysconfig);

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

    92             lxdream_config_load_filename = sysconfig;

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

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

    95             g_free(sysconfig);

    96         } else {

    97             lxdream_config_load_filename = g_strdup(lxdream_config_save_filename);

    98             g_free(sysconfig);

    99             result = FALSE;

   100         }

   101     }

   102     return result;

   103 }

   105 void lxdream_set_config_filename( const gchar *filename )

   106 {

   107     if( lxdream_config_load_filename != NULL ) {

   108         g_free(lxdream_config_load_filename);

   109     }

   110     lxdream_config_load_filename = g_strdup(filename);

   111     if( lxdream_config_save_filename != NULL ) {

   112         g_free(lxdream_config_save_filename);

   113     }

   114     lxdream_config_save_filename = g_strdup(filename);

   115 }

   117 void lxdream_set_default_config( )

   118 {

   119     struct lxdream_config_group *group = lxdream_config_root;

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

   121         struct lxdream_config_entry *param = group->params;

   122         if( param != NULL ) {

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

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

   125                     if( param->value != NULL )

   126                         free( param->value );

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

   128                 }

   129                 param++;

   130             }

   131         }

   132         group++;

   133     }

   134     maple_detach_all();

   135 }

   137 const gchar *lxdream_get_config_value( int key )

   138 {

   139     return global_config[key].value;

   140 }

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

   143 {

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

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

   146             free( param->value );

   147         }

   148         param->value = g_strdup(value);

   149     }

   150 }

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

   153 {

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

   155 }

   157 const struct lxdream_config_entry * lxdream_get_config_entry( int key )

   158 {

   159     return &global_config[key];

   160 }

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

   163 {

   164     int i;

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

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

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

   168             return TRUE;

   169         }

   170     }

   171     return FALSE;

   172 }

   174 void lxdream_copy_config_list( lxdream_config_entry_t dest, lxdream_config_entry_t src )

   175 {

   176     int i;

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

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

   179     }

   180 }

   182 gboolean lxdream_load_config( )

   183 {

   184     if( lxdream_config_load_filename == NULL ) {

   185         lxdream_find_config();

   186     }

   187     return lxdream_load_config_file(lxdream_config_load_filename);

   188 }

   190 gboolean lxdream_save_config( )

   191 {

   192     if( lxdream_config_save_filename == NULL ) {

   193         lxdream_find_config();

   194     }

   195     return lxdream_save_config_file(lxdream_config_save_filename);

   196 }

   198 gboolean lxdream_load_config_file( const gchar *filename )

   199 {

   200     FILE *f;

   201     gboolean result;

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

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

   205         lxdream_set_default_config();

   206         lxdream_save_config();

   207     }

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

   210     if( f == NULL ) {

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

   212         lxdream_set_default_config();

   213         return FALSE;

   214     }

   216     result = lxdream_load_config_stream( f );

   217     fclose(f);

   218     return result;

   219 }

   221 gboolean lxdream_load_config_stream( FILE *f )

   222 {

   224     char buf[512];

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

   226     struct lxdream_config_group devgroup;

   227     struct lxdream_config_group *group = NULL;

   228     maple_device_t device = NULL;

   229     lxdream_set_default_config();

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

   232         g_strstrip(buf);

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

   234             continue;

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

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

   237             if( p != NULL ) {

   238                 struct lxdream_config_group *tmp_group;

   239                 maple_device = maple_subdevice = -1;

   240                 *p = '\0';

   241                 g_strstrip(buf+1);

   242                 tmp_group = &lxdream_config_root[0];

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

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

   245                         group = tmp_group;

   246                         break;

   247                     }

   248                     tmp_group++;

   249                 }

   250             }

   251         } else if( group != NULL ) {

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

   253             if( value != NULL ) {

   254                 struct lxdream_config_entry *param = group->params;

   255                 *value = '\0';

   256                 value++;

   257                 g_strstrip(buf);

   258                 g_strstrip(value);

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

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

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

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

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

   264                             continue;

   265                         }

   266                         maple_subdevice = 0;

   267                         device = maple_new_device( value );

   268                         if( device == NULL ) {

   269                             ERROR( "Unrecognized device '%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                     } else if( g_strncasecmp( buf, "subdevice ", 10 ) == 0 ) {

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

   279                         if( maple_device == -1 ) {

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

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

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

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

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

   285                         } else {

   286                             devgroup.key = "controllers";

   287                             devgroup.params = maple_get_device_config(device);

   288                             maple_attach_device( device, maple_device, maple_subdevice );

   289                             group = &devgroup;

   290                         }

   291                         continue;

   292                     }

   293                 }

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

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

   296                         param->value = g_strdup(value);

   297                         break;

   298                     }

   299                     param++;

   300                 }

   301             }

   302         }

   303     }

   304     return TRUE;

   305 }

   307 gboolean lxdream_save_config_file( const gchar *filename )

   308 {

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

   310     gboolean result;

   311     if( f == NULL ) {

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

   313         return FALSE;

   314     }

   315     result = lxdream_save_config_stream(f);

   316     fclose(f);

   317     return TRUE;

   318 }

   320 gboolean lxdream_save_config_stream( FILE *f )

   321 {

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

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

   325         struct lxdream_config_entry *entry = group->params;

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

   328         if( entry != NULL ) {

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

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

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

   332                 }

   333                 entry++;

   334             }

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

   336             int i,j;

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

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

   339                     maple_device_t dev = maple_get_device( i, j );

   340                     if( dev != NULL ) {

   341                         if( j == 0 )

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

   343                         else

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

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

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

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

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

   349                                 }

   350                                 entry++;

   351                             }

   352                         }

   353                     }

   354                 }

   355             }

   356         }

   357         fprintf( f, "\n" );

   358         group++;

   359     }

   360     return TRUE;

   361 }