drivers/media/platform/vivid/vivid-radio-common.h

   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
  31 enum { BAND_FM, BAND_AM, BAND_SW, TOT_BANDS };
  32
  33 extern const struct v4l2_frequency_band vivid_radio_bands[TOT_BANDS];
  34
  35 int vivid_radio_g_frequency(struct file *file, const unsigned *freq, struct v4l2_frequency *vf);
  36 int vivid_radio_s_frequency(struct file *file, unsigned *freq, const struct v4l2_frequency *vf);
  37
  38 void vivid_radio_rds_init(struct vivid_dev *dev);
  39
  40 #endif