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/*
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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef USB_SERIAL_H
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#define USB_SERIAL_H
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//DG 2010
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//Essentially a clone of Serial if
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#include "Stream.h"
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#include "mbed.h"
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#include "drv/usb/UsbDevice.h"
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#include "drv/usb/UsbEndpoint.h"
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namespace mbed {
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class UsbSerial : public Stream {
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public:
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UsbSerial(UsbDevice* pDevice, int epIn, int epOut, const char* name = NULL);
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virtual ~UsbSerial();
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//Apart from the ctor/dtor, exactly the same protos as Serial
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void baud(int baudrate);
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enum Parity {
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None = 0,
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Odd = 1,
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Even = 2,
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Forced1 = 3,
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Forced0 = 4
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};
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enum IrqType {
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RxIrq = 0
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, TxIrq
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};
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void format(int bits, int parity, int stop);
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class CDummy;
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template <class T>
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void attach(T* pCbItem, void (T::*pCbMeth)(), IrqType type = RxIrq)
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{
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if(type == RxIrq)
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{
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m_pInCbItem = (CDummy*) pCbItem;
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m_pInCbMeth = (void (CDummy::*)()) pCbMeth;
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}
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else
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{
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m_pOutCbItem = (CDummy*) pCbItem;
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m_pOutCbMeth = (void (CDummy::*)()) pCbMeth;
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}
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}
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#if 0 // Inhereted from Stream, for documentation only
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/* Function: putc
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* Write a character
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*
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* Variables:
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* c - The character to write to the serial port
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*/
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int putc(int c);
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/* Function: getc
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* Read a character
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*
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* Variables:
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* returns - The character read from the serial port
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*/
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int getc();
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/* Function: printf
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* Write a formated string
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*
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* Variables:
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* format - A printf-style format string, followed by the
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* variables to use in formating the string.
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*/
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int printf(const char* format, ...);
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/* Function: scanf
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* Read a formated string
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*
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* Variables:
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* format - A scanf-style format string,
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* followed by the pointers to variables to store the results.
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*/
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int scanf(const char* format, ...);
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#endif
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/* Function: readable
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* Determine if there is a character available to read
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*
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* Variables:
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* returns - 1 if there is a character available to read, else 0
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*/
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int readable();
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/* Function: writeable
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* Determine if there is space available to write a character
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*
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* Variables:
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* returns - 1 if there is space to write a character, else 0
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*/
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int writeable();
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#ifdef MBED_RPC
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virtual const struct rpc_method *get_rpc_methods();
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static struct rpc_class *get_rpc_class();
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#endif
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protected:
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virtual int _getc();
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virtual int _putc(int c);
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void onReadable();
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void onWriteable();
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void onEpInTransfer();
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void onEpOutTransfer();
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private:
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UsbEndpoint m_epIn;
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UsbEndpoint m_epOut;
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CDummy* m_pInCbItem;
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void (CDummy::*m_pInCbMeth)();
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CDummy* m_pOutCbItem;
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void (CDummy::*m_pOutCbMeth)();
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void startTx();
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void startRx();
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Timeout m_txTimeout;
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volatile bool m_timeout;
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volatile char* m_inBufEven;
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volatile char* m_inBufOdd;
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volatile char* m_inBufUsr;
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volatile char* m_inBufTrmt;
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volatile char* m_outBufEven;
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volatile char* m_outBufOdd;
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volatile char* m_outBufUsr;
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volatile char* m_outBufTrmt;
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volatile int m_inBufLen;
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volatile int m_outBufLen;
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volatile char* m_pInBufPos;
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volatile char* m_pOutBufPos;
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};
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}
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#endif
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Daniel Peter