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52 lines
1.6 KiB
52 lines
1.6 KiB
// |
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// Copyright (c) 2010 Michael Smith. All rights reserved. |
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// |
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// This is free software; you can redistribute it and/or modify it under |
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// the terms of the GNU Lesser General Public License as published by the |
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// Free Software Foundation; either version 2.1 of the License, or (at |
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// your option) any later version. |
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// |
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#ifndef __AP_HAL_UTILITY_BETTERSTREAM_H__ |
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#define __AP_HAL_UTILITY_BETTERSTREAM_H__ |
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#include "../AP_HAL_Namespace.h" |
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#include "Stream.h" |
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/* prog_char_t: */ |
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#include <AP_Common.h> |
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#include <avr/pgmspace.h> |
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/* AP_HAL::BetterStream is derived from Michael Smith's FastSerial library for |
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* Arduino. Mike's library has an implementation of _vprintf() for AVR. |
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* Please provide your own platform-specic implementation for this library. |
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* |
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* TODO: Segregate prog_char_t dependent functions to be available on AVR |
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* platform only, with default implementations elsewhere. |
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*/ |
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class AP_HAL::BetterStream : public AP_HAL::Stream { |
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public: |
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BetterStream(void) {} |
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// Stream extensions |
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virtual void print_P(const prog_char_t *); |
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virtual void println_P(const prog_char_t *); |
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virtual void printf(const char *, ...) |
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__attribute__ ((format(__printf__, 2, 3))); |
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virtual void _printf_P(const prog_char *, ...) |
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__attribute__ ((format(__printf__, 2, 3))); |
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virtual int txspace(void); |
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#define printf_P(fmt, ...) _printf_P((const prog_char *)fmt, ## __VA_ARGS__) |
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private: |
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virtual void _vprintf(unsigned char, const char *, va_list) |
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__attribute__ ((format(__printf__, 3, 0))); |
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}; |
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#endif // __AP_HAL_UTILITY_BETTERSTREAM_H__ |
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