File content as of revision 1:ea8e179320d7:

/* Copyright (c) 2010-2011 mbed.org, MIT License
*
* 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.
*/

#pragma once

/* These headers are included for child class. */
#include "USBEndpoints.h"
#include "USBDescriptor.h"
#include "USBDevice_Types.h"

#include "USBDevice.h"
#include "CircBuffer.h"

#define CDC_EPINT_IN   EP1IN
#define CDC_EPBULK_IN  EP5IN 
#define CDC_EPBULK_OUT EP5OUT

class USB_CDC {
public:
    USB_CDC(USBDevice* device);

    /** target to virtual COM
     */
    void putc(int c);
    
    /** virtial COM to target
     */
    int getc();

    int readable();
    
    int writeable();

    void baud_callback(int baudrate);
    void send_break_callback(uint16_t duration);
    void control_line_callback(int rts, int dtr);

    /*
    * Send a buffer
    *
    * @param endpoint endpoint which will be sent the buffer
    * @param buffer buffer to be sent
    * @param size length of the buffer
    * @returns true if successful
    */
    bool send(uint8_t * buffer, uint32_t size);
    
    /*
    * Read a buffer from a certain endpoint. Warning: blocking
    *
    * @param endpoint endpoint to read
    * @param buffer buffer where will be stored bytes
    * @param size the number of bytes read will be stored in *size
    * @param maxSize the maximum length that can be read
    * @returns true if successful
    */
    bool readEP(uint8_t * buffer, uint32_t * size);
    
    /*
    * Read a buffer from a certain endpoint. Warning: non blocking
    *
    * @param endpoint endpoint to read
    * @param buffer buffer where will be stored bytes
    * @param size the number of bytes read will be stored in *size
    * @param maxSize the maximum length that can be read
    * @returns true if successful
    */
    bool readEP_NB(uint8_t * buffer, uint32_t * size);

    bool Request_callback(CONTROL_TRANSFER* transfer);
    bool RequestCompleted_callback(CONTROL_TRANSFER* transfer, uint8_t* buf, int length);
    bool EPBULK_OUT_callback();
    
protected:
    USBDevice* _device;
    CircBuffer<uint8_t> _rx_buf;
    volatile bool terminal_connected;
};