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Embedded C project:18/12/2014
Dependencies: DS1307 TextLCD mbed
Diff: NetServices/drv/serial/buf/SerialBuf.h
- Revision:
- 0:8d87bc453349
diff -r 000000000000 -r 8d87bc453349 NetServices/drv/serial/buf/SerialBuf.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NetServices/drv/serial/buf/SerialBuf.h Thu Dec 18 09:35:49 2014 +0000 @@ -0,0 +1,99 @@ + +/* +Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com) + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. +*/ + +#ifndef SERIALBUF_H +#define SERIALBUF_H + +#include "mbed.h" +#include "netCfg.h" +#if NET_USB_SERIAL +#include "drv/serial/usb/UsbSerial.h" +#endif + +class SerialCircularBuf +{ +public: + SerialCircularBuf(int len); + ~SerialCircularBuf(); + + int room(); + int len(); + + void write(char c); + char read(); + + void setReadMode(bool readMode); //If true, keeps chars in buf when read, false by default + void flushRead(); //Delete chars that have been read & return chars len (only useful with readMode = true) + void resetRead(); //Go back to initial read position & return chars len (only useful with readMode = true) + +private: + char* m_buf; + int m_len; + + volatile char* m_pReadStart; + volatile char* m_pRead; + volatile char* m_pWrite; + volatile bool m_readMode; +}; + +class SerialBuf +{ +public: + SerialBuf(int len); //Buffer length + virtual ~SerialBuf(); + + void attach(Serial* pSerial); + void detach(); + + #if NET_USB_SERIAL + void attach(UsbSerial* pUsbSerial); + #endif + + //Really useful for debugging + char getc(); + void putc(char c); + bool readable(); + bool writeable(); +/*protected:*/ + void setReadMode(bool readMode); //If true, keeps chars in buf when read, false by default + void flushRead(); //Delete chars that have been read & return chars len (only useful with readMode = true) + void resetRead(); //Go back to initial read position & return chars len (only useful with readMode = true) + +private: + void onRxInterrupt(); //Callback from m_pSerial + void onTxInterrupt(); //Callback from m_pSerial + + SerialCircularBuf m_rxBuf; + SerialCircularBuf m_txBuf; + + Serial* m_pSerial; //Not owned + + #if NET_USB_SERIAL + //USB Serial Impl + UsbSerial* m_pUsbSerial; //Not owned + //Ticker m_usbTick; + #endif +}; + + +#endif