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/*
* Copyright (C) 2017 Konsulko Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _RADIO_IMPL_H
#define _RADIO_IMPL_H
#include <stdint.h>
typedef enum {
RADIO_BAND_UNSPECIFIED = 0,
RADIO_BAND_AM,
RADIO_BAND_FM
} radio_band_t;
typedef enum {
RADIO_SCAN_UNSPECIFIED = 0,
RADIO_SCAN_FORWARD,
RADIO_SCAN_BACKWARD
} radio_scan_direction_t;
typedef void (*radio_scan_callback_t)(uint32_t frequency, void *data);
typedef void (*radio_freq_callback_t)(uint32_t frequency, void *data);
typedef void (*radio_rds_callback_t)(void *rds_data, void *dat);
typedef enum {
RADIO_MODE_UNSPECIFIED = 0,
RADIO_MODE_MONO,
RADIO_MODE_STEREO
} radio_stereo_mode_t;
/*
* AF_update
* true if quality belongs to an alternative frequency
*
* time_stamp
* if time_stamp is zero, quality data won't be valid
* reliability depending on time stamp
* it takes some time after tuning to get valid quality data
*
* rssi
* (signed)
* level detector result(RF input level)
*
* usn
* FM ultrasonic noise detector (relative usn detector result)
*
* bandwidth
* IF bandwidth
*/
typedef struct
{
bool af_update;
uint16_t time_stamp;
int16_t rssi;
uint16_t usn;
uint16_t bandw;
} station_quality_t;
typedef struct {
char *name;
int (*probe)(void);
/* NOTE: init should return -1 if called before probe has been called and returned success */
int (*init)(void);
void (*set_output)(const char *output);
uint32_t (*get_frequency)(void);
void (*set_frequency)(uint32_t frequency);
void (*set_frequency_callback)(radio_freq_callback_t callback,
void *data);
void (*set_rds_callback)(radio_rds_callback_t callback);
radio_band_t (*get_band)(void);
void (*set_band)(radio_band_t band);
int (*band_supported)(radio_band_t band);
uint32_t (*get_min_frequency)(radio_band_t band);
uint32_t (*get_max_frequency)(radio_band_t band);
uint32_t (*get_frequency_step)(radio_band_t band);
bool (*get_corking_state)(void);
void (*start)(void);
void (*stop)(void);
void (*scan_start)(radio_scan_direction_t direction,
radio_scan_callback_t callback,
void *data);
void (*scan_stop)(void);
radio_stereo_mode_t (*get_stereo_mode)(void);
void (*set_stereo_mode)(radio_stereo_mode_t mode);
char * (*get_rds_info)(void);
station_quality_t * (*get_quality_info)(void);
void (*set_alternative_frequency)(uint32_t frequency);
} radio_impl_ops_t;
#endif /* _RADIO_IMPL_H */
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