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drv/serial/buf/SerialBuf.h@8:1fb1dbb9ad9e, 2013-03-06 (annotated)

Committer:
cwang365
Date:
Wed Mar 06 00:34:07 2013 +0000
Revision:
8:1fb1dbb9ad9e
Parent:
0:ac1725ba162c 
old net services

Who changed what in which revision?

UserRevisionLine numberNew contents of line
segundo 0:ac1725ba162c 1
segundo 0:ac1725ba162c 2 /*
segundo 0:ac1725ba162c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
segundo 0:ac1725ba162c 4
segundo 0:ac1725ba162c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
segundo 0:ac1725ba162c 6 of this software and associated documentation files (the "Software"), to deal
segundo 0:ac1725ba162c 7 in the Software without restriction, including without limitation the rights
segundo 0:ac1725ba162c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
segundo 0:ac1725ba162c 9 copies of the Software, and to permit persons to whom the Software is
segundo 0:ac1725ba162c 10 furnished to do so, subject to the following conditions:
segundo 0:ac1725ba162c 11
segundo 0:ac1725ba162c 12 The above copyright notice and this permission notice shall be included in
segundo 0:ac1725ba162c 13 all copies or substantial portions of the Software.
segundo 0:ac1725ba162c 14
segundo 0:ac1725ba162c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
segundo 0:ac1725ba162c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
segundo 0:ac1725ba162c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
segundo 0:ac1725ba162c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
segundo 0:ac1725ba162c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
segundo 0:ac1725ba162c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
segundo 0:ac1725ba162c 21 THE SOFTWARE.
segundo 0:ac1725ba162c 22 */
segundo 0:ac1725ba162c 23
segundo 0:ac1725ba162c 24 #ifndef SERIALBUF_H
segundo 0:ac1725ba162c 25 #define SERIALBUF_H
segundo 0:ac1725ba162c 26
segundo 0:ac1725ba162c 27 #include "mbed.h"
segundo 0:ac1725ba162c 28 #include "netCfg.h"
segundo 0:ac1725ba162c 29 #if NET_USB_SERIAL
segundo 0:ac1725ba162c 30 #include "drv/serial/usb/UsbSerial.h"
segundo 0:ac1725ba162c 31 #endif
segundo 0:ac1725ba162c 32
segundo 0:ac1725ba162c 33 class SerialCircularBuf
segundo 0:ac1725ba162c 34 {
segundo 0:ac1725ba162c 35 public:
segundo 0:ac1725ba162c 36 SerialCircularBuf(int len);
segundo 0:ac1725ba162c 37 ~SerialCircularBuf();
segundo 0:ac1725ba162c 38
segundo 0:ac1725ba162c 39 int room();
segundo 0:ac1725ba162c 40 int len();
segundo 0:ac1725ba162c 41
segundo 0:ac1725ba162c 42 void write(char c);
segundo 0:ac1725ba162c 43 char read();
segundo 0:ac1725ba162c 44
segundo 0:ac1725ba162c 45 void setReadMode(bool readMode); //If true, keeps chars in buf when read, false by default
segundo 0:ac1725ba162c 46 void flushRead(); //Delete chars that have been read & return chars len (only useful with readMode = true)
segundo 0:ac1725ba162c 47 void resetRead(); //Go back to initial read position & return chars len (only useful with readMode = true)
segundo 0:ac1725ba162c 48
segundo 0:ac1725ba162c 49 private:
segundo 0:ac1725ba162c 50 char* m_buf;
segundo 0:ac1725ba162c 51 int m_len;
segundo 0:ac1725ba162c 52
segundo 0:ac1725ba162c 53 volatile char* m_pReadStart;
segundo 0:ac1725ba162c 54 volatile char* m_pRead;
segundo 0:ac1725ba162c 55 volatile char* m_pWrite;
segundo 0:ac1725ba162c 56 volatile bool m_readMode;
segundo 0:ac1725ba162c 57 };
segundo 0:ac1725ba162c 58
segundo 0:ac1725ba162c 59 class SerialBuf
segundo 0:ac1725ba162c 60 {
segundo 0:ac1725ba162c 61 public:
segundo 0:ac1725ba162c 62 SerialBuf(int len); //Buffer length
segundo 0:ac1725ba162c 63 virtual ~SerialBuf();
segundo 0:ac1725ba162c 64
segundo 0:ac1725ba162c 65 void attach(Serial* pSerial);
segundo 0:ac1725ba162c 66 void detach();
segundo 0:ac1725ba162c 67
segundo 0:ac1725ba162c 68 #if NET_USB_SERIAL
segundo 0:ac1725ba162c 69 void attach(UsbSerial* pUsbSerial);
segundo 0:ac1725ba162c 70 #endif
segundo 0:ac1725ba162c 71
segundo 0:ac1725ba162c 72 //Really useful for debugging
segundo 0:ac1725ba162c 73 char getc();
segundo 0:ac1725ba162c 74 void putc(char c);
segundo 0:ac1725ba162c 75 bool readable();
segundo 0:ac1725ba162c 76 bool writeable();
segundo 0:ac1725ba162c 77 /*protected:*/
segundo 0:ac1725ba162c 78 void setReadMode(bool readMode); //If true, keeps chars in buf when read, false by default
segundo 0:ac1725ba162c 79 void flushRead(); //Delete chars that have been read & return chars len (only useful with readMode = true)
segundo 0:ac1725ba162c 80 void resetRead(); //Go back to initial read position & return chars len (only useful with readMode = true)
segundo 0:ac1725ba162c 81
segundo 0:ac1725ba162c 82 private:
segundo 0:ac1725ba162c 83 void onRxInterrupt(); //Callback from m_pSerial
segundo 0:ac1725ba162c 84 void onTxInterrupt(); //Callback from m_pSerial
segundo 0:ac1725ba162c 85
segundo 0:ac1725ba162c 86 SerialCircularBuf m_rxBuf;
segundo 0:ac1725ba162c 87 SerialCircularBuf m_txBuf;
segundo 0:ac1725ba162c 88
segundo 0:ac1725ba162c 89 Serial* m_pSerial; //Not owned
segundo 0:ac1725ba162c 90
segundo 0:ac1725ba162c 91 #if NET_USB_SERIAL
segundo 0:ac1725ba162c 92 //USB Serial Impl
segundo 0:ac1725ba162c 93 UsbSerial* m_pUsbSerial; //Not owned
segundo 0:ac1725ba162c 94 //Ticker m_usbTick;
segundo 0:ac1725ba162c 95 #endif
segundo 0:ac1725ba162c 96 };
segundo 0:ac1725ba162c 97
segundo 0:ac1725ba162c 98
segundo 0:ac1725ba162c 99 #endif