1*dacca5f0SHans Verkuil /* SPDX-License-Identifier: GPL-2.0-only */ 2*dacca5f0SHans Verkuil /* 3*dacca5f0SHans Verkuil * vivid-rds-gen.h - rds (radio data system) generator support functions. 4*dacca5f0SHans Verkuil * 5*dacca5f0SHans Verkuil * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. 6*dacca5f0SHans Verkuil */ 7*dacca5f0SHans Verkuil 8*dacca5f0SHans Verkuil #ifndef _VIVID_RDS_GEN_H_ 9*dacca5f0SHans Verkuil #define _VIVID_RDS_GEN_H_ 10*dacca5f0SHans Verkuil 11*dacca5f0SHans Verkuil /* 12*dacca5f0SHans Verkuil * It takes almost exactly 5 seconds to transmit 57 RDS groups. 13*dacca5f0SHans Verkuil * Each group has 4 blocks and each block has a payload of 16 bits + a 14*dacca5f0SHans Verkuil * block identification. The driver will generate the contents of these 15*dacca5f0SHans Verkuil * 57 groups only when necessary and it will just be played continuously. 16*dacca5f0SHans Verkuil */ 17*dacca5f0SHans Verkuil #define VIVID_RDS_GEN_GROUPS 57 18*dacca5f0SHans Verkuil #define VIVID_RDS_GEN_BLKS_PER_GRP 4 19*dacca5f0SHans Verkuil #define VIVID_RDS_GEN_BLOCKS (VIVID_RDS_GEN_BLKS_PER_GRP * VIVID_RDS_GEN_GROUPS) 20*dacca5f0SHans Verkuil #define VIVID_RDS_NSEC_PER_BLK (u32)(5ull * NSEC_PER_SEC / VIVID_RDS_GEN_BLOCKS) 21*dacca5f0SHans Verkuil 22*dacca5f0SHans Verkuil struct vivid_rds_gen { 23*dacca5f0SHans Verkuil struct v4l2_rds_data data[VIVID_RDS_GEN_BLOCKS]; 24*dacca5f0SHans Verkuil bool use_rbds; 25*dacca5f0SHans Verkuil u16 picode; 26*dacca5f0SHans Verkuil u8 pty; 27*dacca5f0SHans Verkuil bool mono_stereo; 28*dacca5f0SHans Verkuil bool art_head; 29*dacca5f0SHans Verkuil bool compressed; 30*dacca5f0SHans Verkuil bool dyn_pty; 31*dacca5f0SHans Verkuil bool ta; 32*dacca5f0SHans Verkuil bool tp; 33*dacca5f0SHans Verkuil bool ms; 34*dacca5f0SHans Verkuil char psname[8 + 1]; 35*dacca5f0SHans Verkuil char radiotext[64 + 1]; 36*dacca5f0SHans Verkuil }; 37*dacca5f0SHans Verkuil 38*dacca5f0SHans Verkuil void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq, 39*dacca5f0SHans Verkuil bool use_alternate); 40*dacca5f0SHans Verkuil void vivid_rds_generate(struct vivid_rds_gen *rds); 41*dacca5f0SHans Verkuil 42*dacca5f0SHans Verkuil #endif 43