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/*
* Copyright (c) 2013 - Mauro Carvalho Chehab <m.chehab@samsung.com>
*
* 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 version 2
* of the License.
*
* 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
* Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* Described on IEC/CENELEC DS/EN 62216-1:2011
*
* I couldn't find the original version, so I used what's there at:
* http://tdt.telecom.pt/recursos/apresentacoes/Signalling Specifications for DTT deployment in Portugal.pdf
*/
/**
* @file desc_partial_reception.h
* @ingroup descriptors
* @brief Provides the descriptors for the ISDB partial reception descriptor
* @copyright GNU General Public License version 2 (GPLv2)
* @author Mauro Carvalho Chehab
* @author Andre Roth
*
* @par Relevant specs
* The descriptor described herein is defined at:
* - IEC/CENELEC DS/EN 62216-1:2011
*
* @see http://tdt.telecom.pt/recursos/apresentacoes/Signalling Specifications for DTT deployment in Portugal.pdf
*
* @par Bug Report
* Please submit bug reports and patches to linux-media@vger.kernel.org
*/
#ifndef _PARTIAL_RECEPTION_H
#define _PARTIAL_RECEPTION_H
#include <libdvbv5/descriptors.h>
/**
* @struct isdb_partial_reception_service_id
* @ingroup descriptors
* @brief Service ID that uses partial reception
*
* @param service_id service id
*/
struct isdb_partial_reception_service_id {
uint16_t service_id;
} __attribute__((packed));
/**
* @struct isdb_desc_partial_reception
* @ingroup descriptors
* @brief Structure containing the partial reception descriptor
*
* @param type descriptor tag
* @param length descriptor length
* @param next pointer to struct dvb_desc
* @param partial_reception vector of struct isdb_partial_reception_service_id.
* The length of the vector is given by:
* length / sizeof(struct isdb_partial_reception_service_id).
*/
struct isdb_desc_partial_reception {
uint8_t type;
uint8_t length;
struct dvb_desc *next;
struct isdb_partial_reception_service_id *partial_reception;
} __attribute__((packed));
struct dvb_v5_fe_parms;
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Initializes and parses the ISDB-T partial reception descriptor
* @ingroup descriptors
*
* @param parms struct dvb_v5_fe_parms pointer to the opened device
* @param buf buffer containing the descriptor's raw data
* @param desc pointer to struct dvb_desc to be allocated and filled
*
* This function allocates a the descriptor and fills the fields inside
* the struct. It also makes sure that all fields will follow the CPU
* endianness. Due to that, the content of the buffer may change.
*
* @return On success, it returns the size of the allocated struct.
* A negative value indicates an error.
*/
int isdb_desc_partial_reception_init(struct dvb_v5_fe_parms *parms,
const uint8_t *buf, struct dvb_desc *desc);
/**
* @brief Prints the content of the ISDB-T partial reception descriptor
* @ingroup descriptors
*
* @param parms struct dvb_v5_fe_parms pointer to the opened device
* @param desc pointer to struct dvb_desc
*/
void isdb_desc_partial_reception_print(struct dvb_v5_fe_parms *parms,
const struct dvb_desc *desc);
/**
* @brief Frees all data allocated by the ISDB-T partial reception descriptor
* @ingroup descriptors
*
* @param desc pointer to struct dvb_desc to be freed
*/
void isdb_desc_partial_reception_free(struct dvb_desc *desc);
#ifdef __cplusplus
}
#endif
#endif
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