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

   1 /*****************************************************************************
   2  * sap.c :  SAP interface module
   3  *****************************************************************************
   4  * Copyright (C) 2004 VideoLAN
   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
  65     set_capability( "interface", 0 );
  66     set_callbacks( Open, Close );
  67
  68 vlc_module_end();
  69
  70
  71 /*****************************************************************************
  72  * Local structures
  73  *****************************************************************************/
  74
  75 struct intf_sys_t
  76 {
  77     LibHalContext *p_ctx;
  78
  79     /* playlist node */
  80     playlist_item_t *p_node;
  81
  82 };
  83
  84 /*****************************************************************************
  85  * Local prototypes
  86  *****************************************************************************/
  87
  88 /* Main functions */
  89     static void Run    ( intf_thread_t *p_intf );
  90
  91 /*****************************************************************************
  92  * Open: initialize and create stuff
  93  *****************************************************************************/
  94 static int Open( vlc_object_t *p_this )
  95 {
  96     intf_thread_t *p_intf = ( intf_thread_t* )p_this;
  97     intf_sys_t    *p_sys  = malloc( sizeof( intf_sys_t ) );
  98
  99     playlist_t          *p_playlist;
 100     playlist_view_t     *p_view;
 101
 102     p_intf->pf_run = Run;
 103     p_intf->p_sys  = p_sys;
 104
 105     if( !( p_sys->p_ctx = hal_initialize( NULL, FALSE ) ) )
 106     {
 107         free( p_sys );
 108         msg_Err( p_intf, "hal not available" );
 109         return VLC_EGENERIC;
 110     }
 111
 112     /* Create our playlist node */
 113     p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 114                                                 FIND_ANYWHERE );
 115     if( !p_playlist )
 116     {
 117         msg_Warn( p_intf, "unable to find playlist, cancelling HAL listening");
 118         return VLC_EGENERIC;
 119     }
 120
 121     p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
 122     p_sys->p_node = playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
 123                                          _("Devices"), p_view->p_root );
 124
 125     vlc_object_release( p_playlist );
 126
 127     return VLC_SUCCESS;
 128 }
 129
 130 /*****************************************************************************
 131  * Close:
 132  *****************************************************************************/
 133 static void Close( vlc_object_t *p_this )
 134 {
 135     intf_thread_t *p_intf = ( intf_thread_t* )p_this;
 136     intf_sys_t    *p_sys  = p_intf->p_sys;
 137
 138     free( p_sys );
 139 }
 140
 141 static void AddDvd( intf_thread_t *p_intf, char *psz_device )
 142 {
 143     char *psz_name;
 144     char *psz_uri;
 145     char *psz_blockdevice;
 146     intf_sys_t    *p_sys  = p_intf->p_sys;
 147     playlist_t          *p_playlist;
 148     playlist_item_t     *p_item;
 149     psz_name = hal_device_get_property_string( p_intf->p_sys->p_ctx,
 150                                                psz_device, "volume.label" );
 151     psz_blockdevice = hal_device_get_property_string( p_intf->p_sys->p_ctx,
 152                                                  psz_device, "block.device" );
 153     asprintf( &psz_uri, "dvd://%s", psz_blockdevice );
 154     /* Create the playlist item here */
 155     p_item = playlist_ItemNew( p_intf, psz_uri,
 156                                psz_name );
 157     free( psz_uri );
 158     hal_free_string( psz_device );
 159     if( !p_item )
 160     {
 161         return;
 162     }
 163     p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
 164     p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 165                                                 FIND_ANYWHERE );
 166     if( !p_playlist )
 167     {
 168         msg_Err( p_intf, "playlist not found" );
 169         return;
 170     }
 171
 172     playlist_NodeAddItem( p_playlist, p_item, VIEW_CATEGORY, p_sys->p_node,
 173                           PLAYLIST_APPEND, PLAYLIST_END );
 174
 175     vlc_object_release( p_playlist );
 176
 177
 178 }
 179 static void AddCdda( intf_thread_t *p_intf, char *psz_device )
 180 {
 181     char *psz_name = "Audio CD";
 182     char *psz_uri;
 183     char *psz_blockdevice;
 184     intf_sys_t    *p_sys  = p_intf->p_sys;
 185     playlist_t          *p_playlist;
 186     playlist_item_t     *p_item;
 187     psz_blockdevice = hal_device_get_property_string( p_intf->p_sys->p_ctx,
 188                                                  psz_device, "block.device" );
 189     asprintf( &psz_uri, "cdda://%s", psz_blockdevice );
 190     /* Create the playlist item here */
 191     p_item = playlist_ItemNew( p_intf, psz_uri,
 192                                psz_name );
 193     free( psz_uri );
 194     hal_free_string( psz_device );
 195     if( !p_item )
 196     {
 197         return;
 198     }
 199     p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
 200     p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
 201                                                 FIND_ANYWHERE );
 202     if( !p_playlist )
 203     {
 204         msg_Err( p_intf, "playlist not found" );
 205         return;
 206     }
 207
 208     playlist_NodeAddItem( p_playlist, p_item, VIEW_CATEGORY, p_sys->p_node,
 209                           PLAYLIST_APPEND, PLAYLIST_END );
 210
 211     vlc_object_release( p_playlist );
 212
 213
 214 }
 215
 216 static void ParseDevice( intf_thread_t *p_intf, char *psz_device )
 217 {
 218     char *psz_disc_type;
 219     intf_sys_t    *p_sys  = p_intf->p_sys;
 220     if( hal_device_property_exists( p_sys->p_ctx, psz_device,
 221                                     "volume.disc.type" ) )
 222     {
 223         psz_disc_type = hal_device_get_property_string( p_sys->p_ctx,
 224                                                         psz_device,
 225                                                         "volume.disc.type" );
 226         if( !strcmp( psz_disc_type, "dvd_rom" ) )
 227         {
 228             AddDvd( p_intf, psz_device );
 229         }
 230         else if( !strcmp( psz_disc_type, "cd_rom" ) )
 231         {
 232             if( hal_device_get_property_bool( p_sys->p_ctx, psz_device, "volume.disc.has_audio" ) )
 233             {
 234                 AddCdda( p_intf, psz_device );
 235             }
 236         }
 237         hal_free_string( psz_disc_type );
 238     }
 239
 240 }
 241
 242 /*****************************************************************************
 243  * Run: main HAL thread
 244  *****************************************************************************/
 245 static void Run( intf_thread_t *p_intf )
 246 {
 247     int i, i_devices;
 248     char **devices;
 249     intf_sys_t    *p_sys  = p_intf->p_sys;
 250
 251     /* parse existing devices first */
 252     if( ( devices = hal_get_all_devices( p_sys->p_ctx, &i_devices ) ) )
 253     {
 254         for( i = 0; i < i_devices; i++ )
 255         {
 256             ParseDevice( p_intf, devices[ i ] );
 257         }
 258     }
 259
 260     while( !p_intf->b_die )
 261     {
 262         msleep( 1000 );
 263     }
 264 }