mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.2 KiB
42 lines
1.2 KiB
/* 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
|
|
|