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/*
en50221 encoder An implementation for libdvb
an implementation for the en50221 transport layer
Copyright (C) 2006 Andrew de Quincey (adq_dvb@lidskialf.net)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef EN50221_STDCAM_H
#define EN50221_STDCAM_H 1
#ifdef __cplusplus
extern "C" {
#endif
#include <libdvben50221/en50221_app_ai.h>
#include <libdvben50221/en50221_app_ca.h>
#include <libdvben50221/en50221_app_mmi.h>
#include <libdvben50221/en50221_session.h>
#include <libdvben50221/en50221_transport.h>
enum en50221_stdcam_status {
EN50221_STDCAM_CAM_NONE,
EN50221_STDCAM_CAM_INRESET,
EN50221_STDCAM_CAM_OK,
EN50221_STDCAM_CAM_BAD,
};
struct en50221_stdcam {
/* one of more of the following may be NULL if a CAM does not support it */
struct en50221_app_ai *ai_resource;
struct en50221_app_ca *ca_resource;
struct en50221_app_mmi *mmi_resource;
/* if any of these are -1, no connection is in place to this resource yet */
int ai_session_number;
int ca_session_number;
int mmi_session_number;
/* poll the stdcam instance */
enum en50221_stdcam_status (*poll)(struct en50221_stdcam *stdcam);
/* inform the stdcam of the current DVB time */
void (*dvbtime)(struct en50221_stdcam *stdcam, time_t dvbtime);
/* destroy the stdcam instance */
void (*destroy)(struct en50221_stdcam *stdcam, int closefd);
};
/**
* Create an instance of the STDCAM for an LLCI interface.
*
* @param cafd FD of the CA device.
* @param slotnum Slotnum on that CA device.
* @param tl Transport layer instance to use.
* @param sl Session layer instance to use.
* @return en50221_stdcam instance, or NULL on error.
*/
extern struct en50221_stdcam *en50221_stdcam_llci_create(int cafd, int slotnum,
struct en50221_transport_layer *tl,
struct en50221_session_layer *sl);
/**
* Create an instance of the STDCAM for an HLCI interface.
*
* @param cafd FD of the CA device.
* @param slotnum Slotnum on that CA device.
* @return en50221_stdcam instance, or NULL on error.
*/
extern struct en50221_stdcam *en50221_stdcam_hlci_create(int cafd, int slotnum);
/**
* Convenience method to create a STDCAM interface for a ca device on a particular adapter.
*
* @param adapter The DVB adapter concerned.
* @param slotnum The ca slot number on that adapter.
* @param tl Transport layer instance to use (unused for HLCI cams).
* @param sl Session layer instance to use (unused for HLCI cams).
* @return en50221_stdcam instance, or NULL on error.
*/
extern struct en50221_stdcam *en50221_stdcam_create(int adapter, int slotnum,
struct en50221_transport_layer *tl,
struct en50221_session_layer *sl);
#ifdef __cplusplus
}
#endif
#endif
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