/*****************************************************************************
* Close : Close the device
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys = p_access->p_sys;
FilterUnset( p_access, MAX_DEMUX );
DVRClose( p_this, &p_sys->dvb );
FrontendClose( p_this, &p_sys->dvb );
scan_Destroy( p_sys->scan );
free( p_sys );
}
NTSTATUS
FrontendSetState(
IN PXENVBD_FRONTEND Frontend,
IN XENVBD_STATE State
)
{
NTSTATUS Status;
const ULONG TargetId = Frontend->TargetId;
BOOLEAN Failed = FALSE;
LogTrace("Target[%d] @ (%d) =====>\n", TargetId, KeGetCurrentIrql());
LogVerbose("Target[%d] : %s ----> %s\n", TargetId, __XenvbdStateName(Frontend->State),
__XenvbdStateName(State));
while (!Failed && Frontend->State != State) {
switch (Frontend->State) {
case XENVBD_INITIALIZED:
switch (State) {
case XENVBD_CLOSED:
case XENVBD_PREPARED:
case XENVBD_CONNECTED:
case XENVBD_ENABLED:
Status = FrontendClose(Frontend);
if (NT_SUCCESS(Status)) {
Frontend->State = XENVBD_CLOSED;
} else {
Failed = TRUE;
}
break;
default:
Failed = TRUE;
break;
}
break;
case XENVBD_CLOSED:
switch (State) {
case XENVBD_PREPARED:
case XENVBD_CONNECTED:
case XENVBD_ENABLED:
Status = FrontendPrepare(Frontend);
if (NT_SUCCESS(Status)) {
Frontend->State = XENVBD_PREPARED;
} else {
Status = FrontendClose(Frontend);
if (NT_SUCCESS(Status))
Frontend->State = XENVBD_CLOSED;
else
Frontend->State = XENVBD_STATE_INVALID;
Failed = TRUE;
}
break;
default:
Failed = TRUE;
break;
}
break;
case XENVBD_PREPARED:
switch (State) {
case XENVBD_CONNECTED:
case XENVBD_ENABLED:
Status = FrontendConnect(Frontend);
if (NT_SUCCESS(Status)) {
Frontend->State = XENVBD_CONNECTED;
} else {
Status = FrontendClose(Frontend);
if (NT_SUCCESS(Status))
Frontend->State = XENVBD_CLOSED;
else
Frontend->State = XENVBD_STATE_INVALID;
Failed = TRUE;
}
break;
case XENVBD_CLOSED:
Status = FrontendClose(Frontend);
if (NT_SUCCESS(Status)) {
Frontend->State = XENVBD_CLOSED;
} else {
Frontend->State = XENVBD_STATE_INVALID;
Failed = TRUE;
}
break;
default:
Failed = TRUE;
break;
}
break;
case XENVBD_CONNECTED:
switch (State) {
case XENVBD_ENABLED:
FrontendEnable(Frontend);
Frontend->State = XENVBD_ENABLED;
break;
case XENVBD_CLOSED:
case XENVBD_PREPARED:
FrontendDisconnect(Frontend);
Status = FrontendClose(Frontend);
if (NT_SUCCESS(Status)) {
Frontend->State = XENVBD_CLOSED;
} else {
Frontend->State = XENVBD_STATE_INVALID;
Failed = TRUE;
}
break;
default:
Failed = TRUE;
break;
}
break;
case XENVBD_ENABLED:
switch (State) {
case XENVBD_CLOSED:
case XENVBD_PREPARED:
case XENVBD_CONNECTED:
FrontendDisable(Frontend);
Frontend->State = XENVBD_CONNECTED;
break;
default:
Failed = TRUE;
break;
}
break;
default:
Failed = TRUE;
break;
}
LogVerbose("Target[%d] : in state %s\n", TargetId, __XenvbdStateName(Frontend->State));
}
LogTrace("Target[%d] @ (%d) <===== (%s)\n", TargetId, KeGetCurrentIrql(), Failed ? "FAILED" : "SUCCEEDED");
return Failed ? STATUS_UNSUCCESSFUL : STATUS_SUCCESS;
}
/*****************************************************************************
* Open: open the frontend device
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys;
if( p_access->b_preparsing )
return VLC_EGENERIC;
p_access->p_sys = p_sys = calloc( 1, sizeof( access_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
/* Create all variables */
VarInit( p_access );
/* Parse the command line */
if( ParseMRL( p_access ) )
{
free( p_sys );
return VLC_EGENERIC;
}
bool b_scan_mode = var_GetInteger( p_access, "dvb-frequency" ) == 0;
if( b_scan_mode )
{
msg_Dbg( p_access, "DVB scan mode selected" );
p_access->pf_block = BlockScan;
}
else
return VLC_EGENERIC; /* let the DTV plugin do the work */
/* Getting frontend info */
if( FrontendOpen( p_this, &p_sys->dvb, p_access->psz_name ) )
{
free( p_sys );
return VLC_EGENERIC;
}
/* Opening DVR device */
if( DVROpen( p_this, &p_sys->dvb ) < 0 )
{
FrontendClose( p_this, &p_sys->dvb );
free( p_sys );
return VLC_EGENERIC;
}
scan_parameter_t parameter;
scan_t *p_scan;
scan_parameter_Init( ¶meter );
parameter.b_use_nit = var_InheritBool( p_access, "dvb-scan-nit" );
if( FrontendFillScanParameter( p_this, &p_sys->dvb, ¶meter ) ||
(p_scan = scan_New( VLC_OBJECT(p_access), ¶meter,
ScanFrontendTuningHandler,
ScanStatsCallback,
ScanFilterHandler,
ScanReadCallback,
p_access )) == NULL )
{
scan_parameter_Clean( ¶meter );
Close( VLC_OBJECT(p_access) );
return VLC_EGENERIC;
}
scan_parameter_Clean( ¶meter );
p_sys->scan = p_scan;
/* Set up access */
p_access->pf_control = Control;
return VLC_SUCCESS;
}