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- /* 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)(5ull * 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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