Commit ea72e55e authored by sigmunau's avatar sigmunau
Browse files

hal.c: start of a libhal based service discovry module. Detects dvd and

audio cd right now. todo: add more devices, use callbacks for device
insertions/removal
parent 0fccf763
/*****************************************************************************
* sap.c : SAP interface module
*****************************************************************************
* Copyright (C) 2004 VideoLAN
* $Id: sap.c 9217 2004-11-07 11:02:59Z courmisch $
*
* Authors: Clment Stenac <zorglub@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Includes
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <vlc/vlc.h>
#include <vlc/intf.h>
#include <vlc/input.h>
#include "network.h"
#include <errno.h> /* ENOMEM */
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <hal/libhal.h>
/************************************************************************
* Macros and definitions
************************************************************************/
#define MAX_LINE_LENGTH 256
/*****************************************************************************
* Module descriptor
*****************************************************************************/
/* Callbacks */
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
vlc_module_begin();
set_description( _("HAL device detection") );
set_capability( "interface", 0 );
set_callbacks( Open, Close );
vlc_module_end();
/*****************************************************************************
* Local structures
*****************************************************************************/
struct intf_sys_t
{
LibHalContext *p_ctx;
/* playlist node */
playlist_item_t *p_node;
};
/*****************************************************************************
* Local prototypes
*****************************************************************************/
/* Main functions */
static void Run ( intf_thread_t *p_intf );
/*****************************************************************************
* Open: initialize and create stuff
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
intf_thread_t *p_intf = ( intf_thread_t* )p_this;
intf_sys_t *p_sys = malloc( sizeof( intf_sys_t ) );
playlist_t *p_playlist;
playlist_view_t *p_view;
p_intf->pf_run = Run;
p_intf->p_sys = p_sys;
if( !( p_sys->p_ctx = hal_initialize( NULL, FALSE ) ) )
{
free( p_sys );
msg_Err( p_intf, "hal not available" );
return VLC_EGENERIC;
}
/* Create our playlist node */
p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
FIND_ANYWHERE );
if( !p_playlist )
{
msg_Warn( p_intf, "unable to find playlist, cancelling HAL listening");
return VLC_EGENERIC;
}
p_view = playlist_ViewFind( p_playlist, VIEW_CATEGORY );
p_sys->p_node = playlist_NodeCreate( p_playlist, VIEW_CATEGORY,
_("Devices"), p_view->p_root );
vlc_object_release( p_playlist );
return VLC_SUCCESS;
}
/*****************************************************************************
* Close:
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
intf_thread_t *p_intf = ( intf_thread_t* )p_this;
intf_sys_t *p_sys = p_intf->p_sys;
free( p_sys );
}
static void AddDvd( intf_thread_t *p_intf, char *psz_device )
{
char *psz_name;
char *psz_uri;
char *psz_blockdevice;
intf_sys_t *p_sys = p_intf->p_sys;
playlist_t *p_playlist;
playlist_item_t *p_item;
psz_name = hal_device_get_property_string( p_intf->p_sys->p_ctx,
psz_device, "volume.label" );
psz_blockdevice = hal_device_get_property_string( p_intf->p_sys->p_ctx,
psz_device, "block.device" );
asprintf( &psz_uri, "dvd://%s", psz_blockdevice );
/* Create the playlist item here */
p_item = playlist_ItemNew( p_intf, psz_uri,
psz_name );
free( psz_uri );
hal_free_string( psz_device );
if( !p_item )
{
return;
}
p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
FIND_ANYWHERE );
if( !p_playlist )
{
msg_Err( p_intf, "playlist not found" );
return;
}
playlist_NodeAddItem( p_playlist, p_item, VIEW_CATEGORY, p_sys->p_node,
PLAYLIST_APPEND, PLAYLIST_END );
vlc_object_release( p_playlist );
}
static void AddCdda( intf_thread_t *p_intf, char *psz_device )
{
char *psz_name = "Audio CD";
char *psz_uri;
char *psz_blockdevice;
intf_sys_t *p_sys = p_intf->p_sys;
playlist_t *p_playlist;
playlist_item_t *p_item;
psz_blockdevice = hal_device_get_property_string( p_intf->p_sys->p_ctx,
psz_device, "block.device" );
asprintf( &psz_uri, "cdda://%s", psz_blockdevice );
/* Create the playlist item here */
p_item = playlist_ItemNew( p_intf, psz_uri,
psz_name );
free( psz_uri );
hal_free_string( psz_device );
if( !p_item )
{
return;
}
p_item->i_flags &= ~PLAYLIST_SKIP_FLAG;
p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
FIND_ANYWHERE );
if( !p_playlist )
{
msg_Err( p_intf, "playlist not found" );
return;
}
playlist_NodeAddItem( p_playlist, p_item, VIEW_CATEGORY, p_sys->p_node,
PLAYLIST_APPEND, PLAYLIST_END );
vlc_object_release( p_playlist );
}
static void ParseDevice( intf_thread_t *p_intf, char *psz_device )
{
char *psz_disc_type;
intf_sys_t *p_sys = p_intf->p_sys;
if( hal_device_property_exists( p_sys->p_ctx, psz_device,
"volume.disc.type" ) )
{
psz_disc_type = hal_device_get_property_string( p_sys->p_ctx,
psz_device,
"volume.disc.type" );
if( !strcmp( psz_disc_type, "dvd_rom" ) )
{
AddDvd( p_intf, psz_device );
}
else if( !strcmp( psz_disc_type, "cd_rom" ) )
{
if( hal_device_get_property_bool( p_sys->p_ctx, psz_device, "volume.disc.has_audio" ) )
{
AddCdda( p_intf, psz_device );
}
}
hal_free_string( psz_disc_type );
}
}
/*****************************************************************************
* Run: main HAL thread
*****************************************************************************/
static void Run( intf_thread_t *p_intf )
{
int i, i_devices;
char **devices;
intf_sys_t *p_sys = p_intf->p_sys;
/* parse existing devices first */
if( ( devices = hal_get_all_devices( p_sys->p_ctx, &i_devices ) ) )
{
for( i = 0; i < i_devices; i++ )
{
ParseDevice( p_intf, devices[ i ] );
}
}
while( !p_intf->b_die )
{
msleep( 1000 );
}
}
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