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