1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * vivid-radio-common.h - common radio rx/tx support functions.
4  *
5  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
6  */
7 
8 #ifndef _VIVID_RADIO_COMMON_H_
9 #define _VIVID_RADIO_COMMON_H_
10 
11 /* The supported radio frequency ranges in kHz */
12 #define FM_FREQ_RANGE_LOW       (64000U * 16U)
13 #define FM_FREQ_RANGE_HIGH      (108000U * 16U)
14 #define AM_FREQ_RANGE_LOW       (520U * 16U)
15 #define AM_FREQ_RANGE_HIGH      (1710U * 16U)
16 #define SW_FREQ_RANGE_LOW       (2300U * 16U)
17 #define SW_FREQ_RANGE_HIGH      (26100U * 16U)
18 
19 enum { BAND_FM, BAND_AM, BAND_SW, TOT_BANDS };
20 
21 extern const struct v4l2_frequency_band vivid_radio_bands[TOT_BANDS];
22 
23 int vivid_radio_g_frequency(struct file *file, const unsigned *freq, struct v4l2_frequency *vf);
24 int vivid_radio_s_frequency(struct file *file, unsigned *freq, const struct v4l2_frequency *vf);
25 
26 void vivid_radio_rds_init(struct vivid_dev *dev);
27 
28 #endif
29