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/*
* Copyright (c) 2013 - Andre Roth <neolynx@gmail.com>
*
* 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 version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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
*
*/
/**
* @file cat.h
* @ingroup dvb_table
* @brief Provides the table parser for the CAT (Conditional Access Table)
* @copyright GNU Lesser General Public License version 2.1 (LGPLv2.1)
* @author Andre Roth
*
* @par Bug Report
* Please submit bug reports and patches to linux-media@vger.kernel.org
*/
#ifndef _CAT_H
#define _CAT_H
#include <stdint.h>
#include <unistd.h> /* ssize_t */
#include <libdvbv5/header.h>
/**
* @def DVB_TABLE_CAT
* @brief ATSC CAT table ID
* @ingroup dvb_table
* @def DVB_TABLE_CAT_PID
* @brief ATSC PID table ID
* @ingroup dvb_table
*/
#define DVB_TABLE_CAT 0x01
#define DVB_TABLE_CAT_PID 0x0001
/**
* @struct dvb_table_cat
* @brief ATSC CAT table
*
* @param header struct dvb_table_header content
* @param descriptor pointer to struct dvb_desc
*/
struct dvb_table_cat {
struct dvb_table_header header;
struct dvb_desc *descriptor;
} __attribute__((packed));
struct dvb_v5_fe_parms;
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Initializes and parses CAT table
*
* @param parms struct dvb_v5_fe_parms pointer to the opened device
* @param buf buffer containing the CAT raw data
* @param buflen length of the buffer
* @param table pointer to struct dvb_table_cat to be allocated and filled
*
* This function allocates an CAT table 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.
*/
ssize_t dvb_table_cat_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf,
ssize_t buflen, struct dvb_table_cat **table);
/**
* @brief Frees all data allocated by the CAT table parser
*
* @param table pointer to struct dvb_table_cat to be freed
*/
void dvb_table_cat_free(struct dvb_table_cat *table);
/**
* @brief Prints the content of the CAT table
*
* @param parms struct dvb_v5_fe_parms pointer to the opened device
* @param table pointer to struct dvb_table_cat
*/
void dvb_table_cat_print(struct dvb_v5_fe_parms *parms,
struct dvb_table_cat *table);
#ifdef __cplusplus
}
#endif
#endif
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