/* SPDX-License-Identifier: GPL-2.0-only */
/*
* vivid - rds - gen . h - rds ( radio data system ) generator support functions .
*
* Copyright 2014 Cisco Systems , Inc . and / or its affiliates . All rights reserved .
*/
#ifndef _VIVID_RDS_GEN_H_
#define _VIVID_RDS_GEN_H_
/*
* It takes almost exactly 5 seconds to transmit 57 RDS groups .
* Each group has 4 blocks and each block has a payload of 16 bits + a
* block identification . The driver will generate the contents of these
* 57 groups only when necessary and it will just be played continuously .
*/
#define VIVID_RDS_GEN_GROUPS 57
#define VIVID_RDS_GEN_BLKS_PER_GRP 4
#define VIVID_RDS_GEN_BLOCKS (VIVID_RDS_GEN_BLKS_PER_GRP * VIVID_RDS_GEN_GROUPS)
#define VIVID_RDS_NSEC_PER_BLK (u32)(5 ull * NSEC_PER_SEC / VIVID_RDS_GEN_BLOCKS)
struct vivid_rds_gen {
struct v4l2_rds_data data[VIVID_RDS_GEN_BLOCKS];
bool use_rbds;
u16 picode;
u8 pty;
bool mono_stereo;
bool art_head;
bool compressed;
bool dyn_pty;
bool ta;
bool tp;
bool ms;
char psname[8 + 1 ];
char radiotext[64 + 1 ];
};
void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq,
bool use_alternate);
void vivid_rds_generate(struct vivid_rds_gen *rds);
#endif
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(vorverarbeitet am 2026-10-11)
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