git.sesse.net Git - vlc/blob - modules/services_discovery/hal.c

   1 /*****************************************************************************
   2  * sap.c :  SAP interface module
   3  *****************************************************************************
   4  * Copyright (C) 2004 the VideoLAN team
   5  * $Id: sap.c 9217 2004-11-07 11:02:59Z courmisch $
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Includes
  26  *****************************************************************************/
  27 #include <stdlib.h>                                      /* malloc(), free() */
  28
  29 #include <vlc/vlc.h>
  30 #include <vlc/intf.h>
  31
  32 #include <vlc/input.h>
  33
  34 #include "network.h"
  35
  36 #include <errno.h>                                                 /* ENOMEM */
  37
  38 #ifdef HAVE_UNISTD_H
  39 #    include <unistd.h>
  40 #endif
  41 #ifdef HAVE_SYS_TIME_H
  42 #    include <sys/time.h>
  43 #endif
  44
  45 #include <hal/libhal.h>
  46
  47 /************************************************************************
  48  * Macros and definitions
  49  ************************************************************************/
  50
  51 #define MAX_LINE_LENGTH 256
  52
  53
  54 /*****************************************************************************
  55  * Module descriptor
  56  *****************************************************************************/
  57
  58 /* Callbacks */
  59     static int  Open ( vlc_object_t * );
  60     static void Close( vlc_object_t * );
  61
  62 vlc_module_begin();
  63     set_description( _("HAL device detection") );
  64     set_category( CAT_PLAYLIST );
  65     set_subcategory( SUBCAT_PLAYLIST_SD );
  66
  67     set_capability( "services_discovery", 0 );
  68     set_callbacks( Open, Close );
  69
  70 vlc_module_end();
  71
  72
  73 /*****************************************************************************
  74  * Local structures
  75  *****************************************************************************/
  76
  77 struct services_discovery_sys_t
  78 {
  79     LibHalContext *p_ctx;
  80
  81     /* playlist node */
  82     playlist_item_t *p_node;
  83
  84 };
  85
  86 /*****************************************************************************
  87  * Local prototypes
  88  *****************************************************************************/
  89
  90 /* Main functions */
  91     static void Run    ( services_discovery_t *p_intf );
  92
  93 /*****************************************************************************
  94  * Open: initialize and create stuff
  95  *****************************************************************************/
  96 static int Open( vlc_object_t *p_this )
  97 {
  98     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
  99     services_discovery_sys_t *p_sys  = malloc(
 100                                     sizeof( services_discovery_sys_t ) );
 101
 102     vlc_value_t         val;
 103     playlist_t          *p_playlist;
 104     playlist_view_t     *p_view;
 105
 106     DBusError           dbus_error;
 107
 108     p_sd->pf_run = Run;
 109     p_sd->p_sys  = p_sys;
 110
 111     dbus_error_init( &dbus_error );
 112
 113 #ifdef HAVE_HAL_1
 114     if( !( p_sys->p_ctx = libhal_ctx_init_direct( &dbus_error ) ) )
 115 #else
 116     if( !( p_sys->p_ctx = hal_initialize( NULL, FALSE ) ) )
 117 #endif
 118     {
 119         free( p_sys );
 120         msg_Err( p_sd, "hal not available : %s", dbus_error.message );
 121         return VLC_EGENERIC;
 122     }
 123
 124     /* Create our playlist node */
 125     p_playlist = (playlist_t *)vlc_object_find( p_sd, VLC_OBJECT_PLAYLIST,
 126                                                 FIND_ANYWHERE );
 127     if( !p_playlist )
 128     {
 129         msg_Warn( p_sd, "unable to find playlist, cancelling HAL listening");
 130         return VLC_EGENERIC;
 131     }
 132
 133     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 134     p_sys->p_node = playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
 135                                          _("Devices"), p_view->p_root );
 136
 137     p_sys->p_node->i_flags |= PLAYLIST_RO_FLAG;
 138     val.b_bool = VLC_TRUE;
 139     var_Set( p_playlist, "intf-change", val );
 140
 141     vlc_object_release( p_playlist );
 142
 143     return VLC_SUCCESS;
 144 }
 145
 146 /*****************************************************************************
 147  * Close:
 148  *****************************************************************************/
 149 static void Close( vlc_object_t *p_this )
 150 {
 151     services_discovery_t *p_sd = ( services_discovery_t* )p_this;
 152     services_discovery_sys_t *p_sys  = p_sd->p_sys;
 153     playlist_t *p_playlist =  (playlist_t *) vlc_object_find( p_sd,
 154                                  VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 155     if( p_playlist )
 156     {
 157         playlist_NodeDelete( p_playlist, p_sys->p_node, VLC_TRUE, VLC_TRUE );
 158         vlc_object_release( p_playlist );
 159     }
 160     free( p_sys );
 161 }
 162
 163 static void AddDvd( services_discovery_t *p_sd, char *psz_device )
 164 {
 165     char *psz_name;
 166     char *psz_uri;
 167     char *psz_blockdevice;
 168     services_discovery_sys_t    *p_sys  = p_sd->p_sys;
 169     playlist_t          *p_playlist;
 170     playlist_item_t     *p_item;
 171 #ifdef HAVE_HAL_1
 172     psz_name = libhal_device_get_property_string( p_sd->p_sys->p_ctx,
 173                                         psz_device, "volume.label", NULL );
 174     psz_blockdevice = libhal_device_get_property_string( p_sd->p_sys->p_ctx,
 175                                         psz_device, "block.device", NULL );
 176 #else
 177     psz_name = hal_device_get_property_string( p_sd->p_sys->p_ctx,
 178                                                psz_device, "volume.label" );
 179     psz_blockdevice = hal_device_get_property_string( p_sd->p_sys->p_ctx,
 180                                                  psz_device, "block.device" );
 181 #endif
 182     asprintf( &psz_uri, "dvd://%s", psz_blockdevice );
 183     /* Create the playlist item here */
 184     p_item = playlist_ItemNew( p_sd, psz_uri,
 185                                psz_name );
 186     free( psz_uri );
 187 #ifdef HAVE_HAL_1
 188     libhal_free_string( psz_device );
 189 #else
 190     hal_free_string( psz_device );
 191 #endif
 192     if( !p_item )
 193     {
 194         return;
 195     }
 196     p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
 197     p_playlist = (playlist_t *)vlc_object_find( p_sd, VLC_OBJECT_PLAYLIST,
 198                                                 FIND_ANYWHERE );
 199     if( !p_playlist )
 200     {
 201         msg_Err( p_sd, "playlist not found" );
 202         return;
 203     }
 204
 205     playlist_NodeAddItem( p_playlist, p_item, VIEW_CATEGORY, p_sys->p_node,
 206                           PLAYLIST_APPEND, PLAYLIST_END );
 207
 208     vlc_object_release( p_playlist );
 209 }
 210
 211 static void AddCdda( services_discovery_t *p_sd, char *psz_device )
 212 {
 213     char *psz_name = "Audio CD";
 214     char *psz_uri;
 215     char *psz_blockdevice;
 216     services_discovery_sys_t    *p_sys  = p_sd->p_sys;
 217     playlist_t          *p_playlist;
 218     playlist_item_t     *p_item;
 219 #ifdef HAVE_HAL_1
 220     psz_blockdevice = libhal_device_get_property_string( p_sd->p_sys->p_ctx,
 221                                             psz_device, "block.device", NULL );
 222 #else
 223     psz_blockdevice = hal_device_get_property_string( p_sd->p_sys->p_ctx,
 224                                                  psz_device, "block.device" );
 225 #endif
 226     asprintf( &psz_uri, "cdda://%s", psz_blockdevice );
 227     /* Create the playlist item here */
 228     p_item = playlist_ItemNew( p_sd, psz_uri,
 229                                psz_name );
 230     free( psz_uri );
 231 #ifdef HAVE_HAL_1
 232     libhal_free_string( psz_device );
 233 #else
 234     hal_free_string( psz_device );
 235 #endif
 236     if( !p_item )
 237     {
 238         return;
 239     }
 240     p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
 241     p_playlist = (playlist_t *)vlc_object_find( p_sd, VLC_OBJECT_PLAYLIST,
 242                                                 FIND_ANYWHERE );
 243     if( !p_playlist )
 244     {
 245         msg_Err( p_sd, "playlist not found" );
 246         return;
 247     }
 248
 249     playlist_NodeAddItem( p_playlist, p_item, VIEW_CATEGORY, p_sys->p_node,
 250                           PLAYLIST_APPEND, PLAYLIST_END );
 251
 252     vlc_object_release( p_playlist );
 253
 254 }
 255
 256 static void ParseDevice( services_discovery_t *p_sd, char *psz_device )
 257 {
 258     char *psz_disc_type;
 259     services_discovery_sys_t    *p_sys  = p_sd->p_sys;
 260 #ifdef HAVE_HAL_1
 261     if( libhal_device_property_exists( p_sys->p_ctx, psz_device,
 262                                        "volume.disc.type", NULL ) )
 263     {
 264         psz_disc_type = libhal_device_get_property_string( p_sys->p_ctx,
 265                                                         psz_device,
 266                                                         "volume.disc.type",
 267                                                         NULL );
 268 #else
 269     if( hal_device_property_exists( p_sys->p_ctx, psz_device,
 270                                     "volume.disc.type" ) )
 271     {
 272         psz_disc_type = hal_device_get_property_string( p_sys->p_ctx,
 273                                                         psz_device,
 274                                                         "volume.disc.type" );
 275 #endif
 276         if( !strcmp( psz_disc_type, "dvd_rom" ) )
 277         {
 278             AddDvd( p_sd, psz_device );
 279         }
 280         else if( !strcmp( psz_disc_type, "cd_rom" ) )
 281         {
 282 #ifdef HAVE_HAL_1
 283             if( libhal_device_get_property_bool( p_sys->p_ctx, psz_device,
 284                                          "volume.disc.has_audio" , NULL ) )
 285 #else
 286             if( hal_device_get_property_bool( p_sys->p_ctx, psz_device,
 287                                          "volume.disc.has_audio" ) )
 288 #endif
 289             {
 290                 AddCdda( p_sd, psz_device );
 291             }
 292         }
 293 #ifdef HAVE_HAL_1
 294         libhal_free_string( psz_disc_type );
 295 #else
 296         hal_free_string( psz_disc_type );
 297 #endif
 298     }
 299 }
 300
 301 /*****************************************************************************
 302  * Run: main HAL thread
 303  *****************************************************************************/
 304 static void Run( services_discovery_t *p_sd )
 305 {
 306     int i, i_devices;
 307     char **devices;
 308     services_discovery_sys_t    *p_sys  = p_sd->p_sys;
 309
 310     /* parse existing devices first */
 311 #ifdef HAVE_HAL_1
 312     if( ( devices = libhal_get_all_devices( p_sys->p_ctx, &i_devices, NULL ) ) )
 313 #else
 314     if( ( devices = hal_get_all_devices( p_sys->p_ctx, &i_devices ) ) )
 315 #endif
 316     {
 317         for( i = 0; i < i_devices; i++ )
 318         {
 319             ParseDevice( p_sd, devices[ i ] );
 320         }
 321     }
 322
 323     while( !p_sd->b_die )
 324     {
 325         msleep( 100000 );
 326     }
 327 }