MHVLib
20111011
An efficiency oriented runtime library for AVR microcontrollers
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00001 /* 00002 * Copyright (c) 2011, Make, Hack, Void Inc 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * * Redistributions of source code must retain the above copyright 00008 * notice, this list of conditions and the following disclaimer. 00009 * * Redistributions in binary form must reproduce the above copyright 00010 * notice, this list of conditions and the following disclaimer in the 00011 * documentation and/or other materials provided with the distribution. 00012 * * Neither the name of the Make, Hack, Void nor the 00013 * names of its contributors may be used to endorse or promote products 00014 * derived from this software without specific prior written permission. 00015 * 00016 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 00017 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00018 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00019 * DISCLAIMED. IN NO EVENT SHALL MAKE, HACK, VOID BE LIABLE FOR ANY 00020 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00021 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00022 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00023 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00024 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00025 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00026 */ 00027 00028 00029 #ifndef MHV_RXBUFFER_H 00030 #define MHV_RXBUFFER_H 00031 00032 #include <inttypes.h> 00033 #include <avr/interrupt.h> 00034 #include <MHV_io.h> 00035 #include <stdio.h> 00036 #include <MHV_RingBuffer.h> 00037 00038 #define MHV_RX_BUFFER_CREATE(_mhvRxName, _mhvRxCharacterCount) \ 00039 char _mhvRxName ## Buf[_mhvRxCharacterCount + 1]; \ 00040 MHV_RingBuffer _mhvRxName(_mhvRxName ## Buf, _mhvRxCharacterCount + 1); 00041 00042 class MHV_Device_RX; 00043 class MHV_RXListener { 00044 public: 00045 virtual void rxReady(MHV_Device_RX *rx) =0; 00046 }; 00047 00048 class MHV_Device_RX { 00049 protected: 00050 MHV_RingBuffer *_rxBuffer; 00051 MHV_RXListener *_listener; 00052 00053 MHV_Device_RX(MHV_RingBuffer *rxBuffer); 00054 00055 public: 00056 int asyncReadLine(char *buffer, uint8_t bufferLength); 00057 int busyReadLine(char *buffer, uint8_t bufferLength); 00058 int read(); 00059 void flush(); 00060 bool ready(); 00061 void registerListener(MHV_RXListener *listener); 00062 void deregisterListener(); 00063 00064 void handleEvents(); 00065 }; 00066 00067 #endif