1 /*****************************************************************************
2 * hal.c : HAL interface module
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
5 * Copyright © 2006-2007 Rafaël Carré
8 * Authors: Clément Stenac <zorglub@videolan.org>
9 * Rafaël Carré <funman at videolanorg>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
31 #include <vlc_plugin.h>
32 #include <vlc_playlist.h>
34 #include <vlc_network.h>
36 #include <errno.h> /* ENOMEM */
41 #ifdef HAVE_SYS_TIME_H
42 # include <sys/time.h>
45 #include <hal/libhal.h>
47 #define MAX_LINE_LENGTH 256
49 /*****************************************************************************
51 *****************************************************************************/
53 /* store relation between item id and udi for ejection */
61 struct services_discovery_sys_t
65 DBusConnection *p_connection;
67 struct udi_input_id_t **pp_devices;
70 static void Run ( services_discovery_t *p_intf );
72 static int Open ( vlc_object_t * );
73 static void Close( vlc_object_t * );
77 void DeviceAdded( LibHalContext *p_ctx, const char *psz_udi );
78 void DeviceRemoved( LibHalContext *p_ctx, const char *psz_udi );
79 /* to retrieve p_sd in HAL callbacks */
80 services_discovery_t *p_sd_global;
83 /*****************************************************************************
85 *****************************************************************************/
87 set_description( _("HAL devices detection") );
88 set_category( CAT_PLAYLIST );
89 set_subcategory( SUBCAT_PLAYLIST_SD );
91 set_capability( "services_discovery", 0 );
92 set_callbacks( Open, Close );
97 /*****************************************************************************
98 * Open: initialize and create stuff
99 *****************************************************************************/
100 static int Open( vlc_object_t *p_this )
102 services_discovery_t *p_sd = ( services_discovery_t* )p_this;
103 services_discovery_sys_t *p_sys = malloc(
104 sizeof( services_discovery_sys_t ) );
109 DBusError dbus_error;
110 DBusConnection *p_connection;
113 p_sys->i_devices_number = 0;
114 p_sys->pp_devices = NULL;
121 dbus_error_init( &dbus_error );
123 p_sys->p_ctx = libhal_ctx_new();
126 msg_Err( p_sd, "unable to create HAL context") ;
130 p_connection = dbus_bus_get( DBUS_BUS_SYSTEM, &dbus_error );
131 if( dbus_error_is_set( &dbus_error ) )
133 msg_Err( p_sd, "unable to connect to DBUS: %s", dbus_error.message );
134 dbus_error_free( &dbus_error );
138 libhal_ctx_set_dbus_connection( p_sys->p_ctx, p_connection );
139 p_sys->p_connection = p_connection;
140 if( !libhal_ctx_init( p_sys->p_ctx, &dbus_error ) )
142 if( !(p_sys->p_ctx = hal_initialize( NULL, FALSE ) ) )
146 msg_Err( p_sd, "hal not available : %s", dbus_error.message );
147 dbus_error_free( &dbus_error );
149 msg_Err( p_sd, "hal not available" );
156 if( !libhal_ctx_set_device_added( p_sys->p_ctx, DeviceAdded ) ||
157 !libhal_ctx_set_device_removed( p_sys->p_ctx, DeviceRemoved ) )
159 msg_Err( p_sd, "unable to add callback" );
160 dbus_error_free( &dbus_error );
166 services_discovery_SetLocalizedName( p_sd, _("Devices") );
171 /*****************************************************************************
173 *****************************************************************************/
174 static void Close( vlc_object_t *p_this )
176 services_discovery_t *p_sd = ( services_discovery_t* )p_this;
177 services_discovery_sys_t *p_sys = p_sd->p_sys;
179 dbus_connection_unref( p_sys->p_connection );
180 struct udi_input_id_t *p_udi_entry;
182 while( p_sys->i_devices_number > 0 )
184 p_udi_entry = p_sys->pp_devices[0];
185 free( p_udi_entry->psz_udi );
186 TAB_REMOVE( p_sys->i_devices_number, p_sys->pp_devices,
187 p_sys->pp_devices[0] );
190 p_sys->pp_devices = NULL;
195 static void AddItem( services_discovery_t *p_sd, input_item_t * p_input
197 , const char* psz_device
201 services_discovery_sys_t *p_sys = p_sd->p_sys;
202 services_discovery_AddItem( p_sd, p_input, NULL /* no category */ );
205 struct udi_input_id_t *p_udi_entry;
206 p_udi_entry = malloc( sizeof( struct udi_input_id_t ) );
209 p_udi_entry->psz_udi = strdup( psz_device );
210 if( !p_udi_entry->psz_udi )
216 vlc_gc_incref( p_input );
217 p_udi_entry->p_item = p_input;
218 TAB_APPEND( p_sys->i_devices_number, p_sys->pp_devices, p_udi_entry );
222 static void AddDvd( services_discovery_t *p_sd, const char *psz_device )
226 char *psz_blockdevice;
227 input_item_t *p_input;
229 psz_name = libhal_device_get_property_string( p_sd->p_sys->p_ctx,
230 psz_device, "volume.label", NULL );
231 psz_blockdevice = libhal_device_get_property_string( p_sd->p_sys->p_ctx,
232 psz_device, "block.device", NULL );
234 psz_name = hal_device_get_property_string( p_sd->p_sys->p_ctx,
235 psz_device, "volume.label" );
236 psz_blockdevice = hal_device_get_property_string( p_sd->p_sys->p_ctx,
237 psz_device, "block.device" );
239 if( asprintf( &psz_uri, "dvd://%s", psz_blockdevice ) == -1 )
241 /* Create the playlist item here */
242 p_input = input_ItemNew( p_sd, psz_uri, psz_name );
249 AddItem( p_sd, p_input, psz_device );
251 AddItem( p_sd, p_input );
253 vlc_gc_decref( p_input );
257 static void DelItem( services_discovery_t *p_sd, const char* psz_udi )
259 services_discovery_sys_t *p_sys = p_sd->p_sys;
262 for( i = 0; i < p_sys->i_devices_number; i++ )
263 { /* looks for a matching udi */
264 if( strcmp( psz_udi, p_sys->pp_devices[i]->psz_udi ) == 0 )
265 { /* delete the corresponding item */
266 services_discovery_RemoveItem( p_sd, p_sys->pp_devices[i]->p_item );
267 vlc_gc_decref( p_sys->pp_devices[i]->p_item );
268 free( p_sys->pp_devices[i]->psz_udi );
269 TAB_REMOVE( p_sys->i_devices_number, p_sys->pp_devices,
270 p_sys->pp_devices[i] );
276 static void AddCdda( services_discovery_t *p_sd, const char *psz_device )
279 char *psz_blockdevice;
280 input_item_t *p_input;
282 psz_blockdevice = libhal_device_get_property_string( p_sd->p_sys->p_ctx,
283 psz_device, "block.device", NULL );
285 psz_blockdevice = hal_device_get_property_string( p_sd->p_sys->p_ctx,
286 psz_device, "block.device" );
288 if( asprintf( &psz_uri, "cdda://%s", psz_blockdevice ) == -1 )
290 /* Create the item here */
291 p_input = input_ItemNew( p_sd, psz_uri, "Audio CD" );
296 AddItem( p_sd, p_input, psz_device );
298 AddItem( p_sd, p_input );
300 vlc_gc_decref( p_input );
303 static void ParseDevice( services_discovery_t *p_sd, const char *psz_device )
306 services_discovery_sys_t *p_sys = p_sd->p_sys;
308 if( libhal_device_property_exists( p_sys->p_ctx, psz_device,
309 "volume.disc.type", NULL ) )
311 psz_disc_type = libhal_device_get_property_string( p_sys->p_ctx,
316 if( hal_device_property_exists( p_sys->p_ctx, psz_device,
317 "volume.disc.type" ) )
319 psz_disc_type = hal_device_get_property_string( p_sys->p_ctx,
321 "volume.disc.type" );
323 if( !strncmp( psz_disc_type, "dvd_r", 5 ) )
326 /* hal 0.2.9.7 (HAVE_HAL) has not is_videodvd
327 * but hal 0.5.0 (HAVE_HAL_1) has */
328 if (libhal_device_get_property_bool( p_sys->p_ctx, psz_device,
329 "volume.disc.is_videodvd", NULL ) )
331 AddDvd( p_sd, psz_device );
333 else if( !strncmp( psz_disc_type, "cd_r", 4 ) )
336 if( libhal_device_get_property_bool( p_sys->p_ctx, psz_device,
337 "volume.disc.has_audio" , NULL ) )
339 if( hal_device_get_property_bool( p_sys->p_ctx, psz_device,
340 "volume.disc.has_audio" ) )
343 AddCdda( p_sd, psz_device );
349 /*****************************************************************************
350 * Run: main HAL thread
351 *****************************************************************************/
352 static void Run( services_discovery_t *p_sd )
356 services_discovery_sys_t *p_sys = p_sd->p_sys;
358 /* parse existing devices first */
360 if( ( devices = libhal_get_all_devices( p_sys->p_ctx, &i_devices, NULL ) ) )
362 if( ( devices = hal_get_all_devices( p_sys->p_ctx, &i_devices ) ) )
365 for( i = 0; i < i_devices; i++ )
367 ParseDevice( p_sd, devices[ i ] );
369 libhal_free_string( devices[ i ] );
371 hal_free_string( devices[ i ] );
377 while( !p_sd->b_die )
379 /* look for events on the bus, blocking 1 second */
380 dbus_connection_read_write_dispatch( p_sys->p_connection, 1000 );
381 /* HAL 0.5.8.1 can use libhal_ctx_get_dbus_connection(p_sys->p_ctx) */
388 void DeviceAdded( LibHalContext *p_ctx, const char *psz_udi )
391 ParseDevice( p_sd_global, psz_udi );
393 void DeviceRemoved( LibHalContext *p_ctx, const char *psz_udi )
396 DelItem( p_sd_global, psz_udi );