/***************************************************************************** * hal.c :  HAL probing module ***************************************************************************** * Copyright (C) 2004 the VideoLAN team * $Id: b131b73c660ae6fead5b8347c7366b834c61e774 $ * * Authors: Clément 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/#ifdef HAVE_CONFIG_H# include "config.h"#endif#include <vlc_common.h>#include <vlc_plugin.h>#include <vlc_interface.h>#include <vlc_devices.h>#include <hal/libhal.h>/***************************************************************************** * Local prototypes *****************************************************************************/struct probe_sys_t{    DBusConnection *p_connection;    LibHalContext *p_ctx;    int            i_devices;    device_t     **pp_devices;};static int  Open ( vlc_object_t * );static void Close( vlc_object_t * );static void Update ( device_probe_t *p_probe );static void UpdateMedia( device_probe_t *p_probe, device_t *p_dev );static void AddDevice( device_probe_t * p_probe, device_t *p_dev );static device_t * ParseDisc( device_probe_t *p_probe,  char *psz_device );/***************************************************************************** * Module descriptor *****************************************************************************/vlc_module_begin();    set_description( N_("HAL devices detection") );    set_capability( "devices probe", 0 );    set_callbacks( Open, Close );vlc_module_end();/***************************************************************************** * Open: initialize and create stuff *****************************************************************************/static int Open( vlc_object_t *p_this ){    device_probe_t *p_probe = (device_probe_t *)p_this;    DBusError           dbus_error;    DBusConnection      *p_connection;    probe_sys_t          *p_sys;    p_probe->p_sys = p_sys = (probe_sys_t*)malloc( sizeof( probe_sys_t ) );    p_probe->p_sys->i_devices = 0;    p_probe->p_sys->pp_devices = NULL;    p_probe->pf_run = Update;    dbus_error_init( &dbus_error );    p_sys->p_ctx = libhal_ctx_new();    if( !p_sys->p_ctx )    {        msg_Err( p_probe, "unable to create HAL context") ;        free( p_probe->p_sys );        return VLC_EGENERIC;    }    p_connection = dbus_bus_get( DBUS_BUS_SYSTEM, &dbus_error );    if( dbus_error_is_set( &dbus_error ) )    {        msg_Err( p_probe, "unable to connect to DBUS: %s", dbus_error.message );        dbus_error_free( &dbus_error );        free( p_probe->p_sys );        return VLC_EGENERIC;    }    p_sys->p_connection = p_connection;    libhal_ctx_set_dbus_connection( p_probe->p_sys->p_ctx, p_connection );    if( !libhal_ctx_init( p_probe->p_sys->p_ctx, &dbus_error ) )    {        msg_Err( p_probe, "hal not available : %s", dbus_error.message );        dbus_connection_unref( p_connection );        dbus_error_free( &dbus_error );        free( p_sys );        return VLC_EGENERIC;    }    return VLC_SUCCESS;}/***************************************************************************** * Close: *****************************************************************************/static void Close( vlc_object_t *p_this ){    device_probe_t *p_probe = (device_probe_t *) p_this;    probe_sys_t *p_sys = p_probe->p_sys;    dbus_connection_unref( p_sys->p_connection );    free( p_sys );}#if 0static int GetAllDevices( device_probe_t *p_probe, device_t ***ppp_devices ){    /// \todo : fill the dst array    return p_probe->p_sys->i_devices;}#endifstatic void Update( device_probe_t * p_probe ){    probe_sys_t *p_sys = p_probe->p_sys;    int i, i_devices, j;    char **devices;    bool b_exists;    for ( j = 0 ; j < p_sys->i_devices; j++ )        p_sys->pp_devices[j]->b_seen = false;    /* CD/DVD */    if( ( devices = libhal_find_device_by_capability( p_sys->p_ctx,                              "storage.cdrom",                              &i_devices, NULL ) ) )    {        for( i = 0; i < i_devices; i++ )        {            device_t *p_dev = ParseDisc( p_probe, devices[ i ] );            b_exists = false;            for ( j = 0 ; j < p_sys->i_devices; j++ )            {                if( !strcmp( p_sys->pp_devices[j]->psz_uri,                             p_dev->psz_uri ) )                {                    b_exists = true;                    p_dev->b_seen = true;                    UpdateMedia( p_probe, p_dev );                    break;                }                if( !b_exists )                    AddDevice( p_probe, p_dev );            }        }    }    /// \todo Remove unseen devices}static void AddDevice( device_probe_t * p_probe, device_t *p_dev ){    INSERT_ELEM( p_probe->p_sys->pp_devices,                 p_probe->p_sys->i_devices,                 p_probe->p_sys->i_devices,                 p_dev );    /// \todo : emit variable}static device_t * ParseDisc( device_probe_t *p_probe,  char *psz_device ){    probe_sys_t *p_sys = p_probe->p_sys;    device_t *p_dev;    char *block_dev;    dbus_bool_t b_dvd;    if( !libhal_device_property_exists( p_sys->p_ctx, psz_device,                                        "storage.cdrom.dvd", NULL ) )        return NULL;    p_dev = (device_t *)malloc( sizeof( device_t ) );    p_dev->i_media_type = p_dev->i_capabilities = 0;    p_dev->psz_name = p_dev->psz_uri = NULL;    block_dev =  libhal_device_get_property_string( p_sys->p_ctx, psz_device,                                                   "block.device" , NULL );    if( block_dev )    {        p_dev->psz_uri = strdup( block_dev );        libhal_free_string( block_dev );    }    b_dvd = libhal_device_get_property_bool( p_sys->p_ctx, psz_device,                                            "storage.cdrom.dvd", NULL  );    if( b_dvd )        p_dev->i_capabilities = DEVICE_CAN_DVD | DEVICE_CAN_CD;    else        p_dev->i_capabilities = DEVICE_CAN_CD;    UpdateMedia( p_probe, p_dev );    return p_dev;}static void UpdateMedia( device_probe_t *p_probe, device_t *p_dev ){    probe_sys_t *p_sys = p_probe->p_sys;    char **matching_media;    int i_matching, i;    bool b_changed = false;;    int i_old_type = p_dev->i_media_type;    p_dev->i_media_type = 0;    /* Find the media in the drive */    matching_media = libhal_manager_find_device_string_match( p_sys->p_ctx,                                            "block.device", p_dev->psz_uri,                                            &i_matching, NULL );    for( i = 0; i < i_matching; i++ )    {        if( libhal_device_property_exists( p_sys->p_ctx, matching_media[i],                                           "volume.disc.type", NULL ) )        {            char *psz_media_name = libhal_device_get_property_string(                                            p_sys->p_ctx,                                            matching_media[i],                                            "volume.label", NULL );            if( psz_media_name )            {                if( p_dev->psz_name && strcmp( p_dev->psz_name, psz_media_name))                {                    free( p_dev->psz_name );                    p_dev->psz_name = NULL;                    b_changed = true;                }                if( !p_dev->psz_name )                    p_dev->psz_name = strdup( psz_media_name );                libhal_free_string( psz_media_name );            }            if( libhal_device_get_property_bool( p_sys->p_ctx,                                             matching_media[i],                                             "volume.disc.is_videodvd", NULL) )                p_dev->i_media_type = MEDIA_TYPE_DVD;            else if( libhal_device_get_property_bool( p_sys->p_ctx,                                             matching_media[i],                                             "volume.disc.is_vcd", NULL) ||                     libhal_device_get_property_bool( p_sys->p_ctx,                                             matching_media[i],                                             "volume.disc.is_svcd", NULL) )               p_dev->i_media_type = MEDIA_TYPE_VCD;            else if( libhal_device_get_property_bool( p_sys->p_ctx,                                             matching_media[i],                                             "volume.disc.has_audio", NULL) )               p_dev->i_media_type = MEDIA_TYPE_CDDA;            break;        }    }    if( b_changed || p_dev->i_media_type != i_old_type )    {        /// \todo emit changed signal    }}