1/* 2 * vivid-radio-common.h - common radio rx/tx support functions. 3 * 4 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. 5 * 6 * This program is free software; you may redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; version 2 of the License. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 11 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 12 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 13 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 14 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 15 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 16 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 17 * SOFTWARE. 18 */ 19 20#ifndef _VIVID_RADIO_COMMON_H_ 21#define _VIVID_RADIO_COMMON_H_ 22 23/* The supported radio frequency ranges in kHz */ 24#define FM_FREQ_RANGE_LOW (64000U * 16U) 25#define FM_FREQ_RANGE_HIGH (108000U * 16U) 26#define AM_FREQ_RANGE_LOW (520U * 16U) 27#define AM_FREQ_RANGE_HIGH (1710U * 16U) 28#define SW_FREQ_RANGE_LOW (2300U * 16U) 29#define SW_FREQ_RANGE_HIGH (26100U * 16U) 30 31enum { BAND_FM, BAND_AM, BAND_SW, TOT_BANDS }; 32 33extern const struct v4l2_frequency_band vivid_radio_bands[TOT_BANDS]; 34 35int vivid_radio_g_frequency(struct file *file, const unsigned *freq, struct v4l2_frequency *vf); 36int vivid_radio_s_frequency(struct file *file, unsigned *freq, const struct v4l2_frequency *vf); 37 38void vivid_radio_rds_init(struct vivid_dev *dev); 39 40#endif 41