Diff: drv/serial/usb/UsbSerial.h

Revision:

0:350011bf8be7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/drv/serial/usb/UsbSerial.h	Tue Nov 23 14:15:36 2010 +0000
@@ -0,0 +1,189 @@
+
+/*
+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 USB_SERIAL_H
+#define USB_SERIAL_H
+
+//DG 2010
+//Essentially a clone of Serial if
+#include "Stream.h"
+#include "mbed.h"
+
+#include "drv/usb/UsbDevice.h"
+#include "drv/usb/UsbEndpoint.h"
+
+namespace mbed {
+
+class UsbSerial : public Stream {
+
+public:
+
+    UsbSerial(UsbDevice* pDevice, int epIn, int epOut, const char* name = NULL);
+    virtual ~UsbSerial();
+    //Apart from the ctor/dtor, exactly the same protos as Serial
+
+    void baud(int baudrate);
+
+    enum Parity {
+        None = 0,
+        Odd = 1,
+        Even = 2,
+        Forced1 = 3,
+        Forced0 = 4
+    };
+    
+    enum IrqType {
+        RxIrq = 0
+        , TxIrq
+    };
+
+    void format(int bits, int parity, int stop); 
+    
+    class CDummy;
+    template <class T>
+    void attach(T* pCbItem, void (T::*pCbMeth)(), IrqType type = RxIrq)
+    {
+      if(type == RxIrq)
+      {
+        m_pInCbItem = (CDummy*) pCbItem;
+        m_pInCbMeth = (void (CDummy::*)()) pCbMeth;
+      }
+      else
+      {
+        m_pOutCbItem = (CDummy*) pCbItem;
+        m_pOutCbMeth = (void (CDummy::*)()) pCbMeth;
+      }
+    }
+    
+#if 0 // Inhereted from Stream, for documentation only
+
+    /* Function: putc
+     *  Write a character
+     *
+     * Variables:
+     *  c - The character to write to the serial port
+     */
+    int putc(int c);
+
+    /* Function: getc
+     *  Read a character
+     *
+     * Variables:
+     *  returns - The character read from the serial port
+     */
+    int getc();
+        
+    /* Function: printf
+     *  Write a formated string
+     *
+     * Variables:
+     *  format - A printf-style format string, followed by the 
+     *      variables to use in formating the string.
+     */
+    int printf(const char* format, ...);
+
+    /* Function: scanf
+     *  Read a formated string 
+     *
+     * Variables:
+     *  format - A scanf-style format string,
+     *      followed by the pointers to variables to store the results. 
+     */
+    int scanf(const char* format, ...);
+         
+#endif
+               
+    /* Function: readable
+     *  Determine if there is a character available to read
+     *
+     * Variables:
+     *  returns - 1 if there is a character available to read, else 0
+     */
+    int readable();
+
+    /* Function: writeable
+     *  Determine if there is space available to write a character
+     * 
+     * Variables:
+     *  returns - 1 if there is space to write a character, else 0
+     */
+    int writeable();    
+
+#ifdef MBED_RPC
+    virtual const struct rpc_method *get_rpc_methods();
+    static struct rpc_class *get_rpc_class();
+#endif
+    
+protected:
+
+    virtual int _getc();    
+    virtual int _putc(int c);
+    
+    void onReadable();
+    void onWriteable();
+    
+    void onEpInTransfer();
+    void onEpOutTransfer();
+    
+private:
+
+    UsbEndpoint m_epIn;
+    UsbEndpoint m_epOut;
+    
+    CDummy* m_pInCbItem;
+    void (CDummy::*m_pInCbMeth)();
+
+    CDummy* m_pOutCbItem;
+    void (CDummy::*m_pOutCbMeth)();
+
+    void startTx();
+    void startRx();
+    
+    Timeout m_txTimeout;
+    volatile bool m_timeout;
+
+    volatile char* m_inBufEven;    
+    volatile char* m_inBufOdd;
+    volatile char* m_inBufUsr;
+    volatile char* m_inBufTrmt;
+    
+    volatile char* m_outBufEven;
+    volatile char* m_outBufOdd;
+    volatile char* m_outBufUsr;
+    volatile char* m_outBufTrmt;
+    
+    volatile int m_inBufLen;
+    volatile int m_outBufLen;
+    
+    volatile char* m_pInBufPos;
+    volatile char* m_pOutBufPos;
+    
+    
+    
+};
+
+}
+
+
+
+#endif