kamilsss655/app/fm.h
2023-09-25 13:27:52 +01:00

64 lines
1.9 KiB
C

/* Copyright 2023 Dual Tachyon
* https://github.com/DualTachyon
*
* 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 APP_FM_H
#define APP_FM_H
#ifdef ENABLE_FMRADIO
#include "driver/keyboard.h"
#define FM_CHANNEL_UP 0x01
#define FM_CHANNEL_DOWN 0xFF
enum {
FM_SCAN_OFF = 0U,
};
extern uint16_t gFM_Channels[20];
extern bool gFmRadioMode;
extern uint8_t gFmRadioCountdown_500ms;
extern volatile uint16_t gFmPlayCountdown_10ms;
extern volatile int8_t gFM_ScanState;
extern bool gFM_AutoScan;
extern uint8_t gFM_ChannelPosition;
// Doubts about whether this should be signed or not
extern uint16_t gFM_FrequencyDeviation;
extern bool gFM_FoundFrequency;
extern bool gFM_AutoScan;
extern uint8_t gFM_ResumeCountdown_500ms;
extern uint16_t gFM_RestoreCountdown_10ms;
bool FM_CheckValidChannel(uint8_t Channel);
uint8_t FM_FindNextChannel(uint8_t Channel, uint8_t Direction);
int FM_ConfigureChannelState(void);
void FM_TurnOff(void);
void FM_EraseChannels(void);
void FM_Tune(uint16_t Frequency, int8_t Step, bool bFlag);
void FM_PlayAndUpdate(void);
int FM_CheckFrequencyLock(uint16_t Frequency, uint16_t LowerLimit);
void FM_ProcessKeys(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld);
void FM_Play(void);
void FM_Start(void);
#endif
#endif