diff options
Diffstat (limited to 'src/common/Audio/cw.h')
| -rw-r--r-- | src/common/Audio/cw.h | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/src/common/Audio/cw.h b/src/common/Audio/cw.h index 39be9c5..153f219 100644 --- a/src/common/Audio/cw.h +++ b/src/common/Audio/cw.h @@ -1,7 +1,7 @@ /* * The MIT License (MIT) * - * Copyright (c) 2015 Matthias P. Braendli + * Copyright (c) 2019 Matthias P. Braendli * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal @@ -22,32 +22,38 @@ * SOFTWARE. */ -#ifndef __CW_H_ -#define __CW_H_ +#pragma once #include <stdint.h> #include <stddef.h> // Setup the CW generator to create audio samples at the given // samplerate. -void cw_psk31_init(unsigned int samplerate); - -// Append new CW or PSK31 text to transmit -// CW/PSK31 audio centre frequency in Hz -// if dit_duration == 0, message is sent in PSK31 +void cw_psk_init(unsigned int samplerate); + +// Append new CW or PSK text to transmit +// CW/PSK audio centre frequency in Hz +// +// Supported characters for CW: +// All ASCII between '+' and '\', which includes +// numerals and capital letters. +// +// Supported characters for PSK: 7-bit clean ASCII +// +// if dit_duration == -1, message is sent in PSK31 +// if dit_duration == -2, message is sent in PSK63 +// if dit_duration == -3, message is sent in PSK125 // otherwise it is sent in CW, with dit_duration in ms // returns 0 on failure, 1 on success -int cw_psk31_push_message(const char* text, int frequency, int dit_duration); +int cw_psk_push_message(const char* text, int frequency, int dit_duration); -// Write the waveform into the buffer (stereo), both for cw and psk31 -size_t cw_psk31_fill_buffer(int16_t *buf, size_t bufsize); +// Write the waveform into the buffer (stereo), both for cw and psk +size_t cw_psk_fill_buffer(int16_t *buf, size_t bufsize); -// Return 1 if the CW or PSK31 generator is running -int cw_psk31_busy(void); +// Return 1 if the CW or PSK generator is running +int cw_psk_busy(void); void cw_message_sent(const char*); size_t cw_symbol(uint8_t, uint8_t *, size_t); -#endif // __CW_H_ - |