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/* Copyright (c) 2010-2012 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.
*/
#ifndef WANDONGLESERIALPORT_H
#define WANDONGLESERIALPORT_H
#include "USBHostConf.h"
#ifdef USBHOST_3GMODULE
#include "USBHost.h"
#include "IUSBHostSerial.h"
#include "rtos.h"
#define WANDONGLE_MAX_OUTEP_SIZE 64
#define WANDONGLE_MAX_INEP_SIZE 64
/** A class to use a WAN (3G/LTE) access dongle
*
*/
class WANDongleSerialPort : public IUSBHostSerial {
public:
/*
* Constructor
*
*/
WANDongleSerialPort();
void init( USBHost* pHost );
void connect( USBDeviceConnected* pDev, USBEndpoint* pInEp, USBEndpoint* pOutEp );
void disconnect( );
/*
* Get a char from the dongle's serial interface
*/
virtual int getc();
/*
* Put a char to the dongle's serial interface
*/
virtual int putc(int c);
/*
* Read a packet from the dongle's serial interface, to be called after multiple getc() calls
*/
virtual int readPacket();
/*
* Write a packet to the dongle's serial interface, to be called after multiple putc() calls
*/
virtual int writePacket();
/**
* Check the number of bytes available.
*
* @returns the number of bytes available
*/
virtual int readable();
/**
* Check the free space in output.
*
* @returns the number of bytes available
*/
virtual int writeable();
/**
* Attach a handler to call when a packet is received / when a packet has been transmitted.
*
* @param pListener instance of the listener deriving from the IUSBHostSerialListener
*/
virtual void attach(IUSBHostSerialListener* pListener);
/**
* Enable or disable readable/writeable callbacks
*/
virtual void setupIrq(bool en, IrqType irq = RxIrq);
protected:
USBEndpoint * bulk_in;
USBEndpoint * bulk_out;
USBHost * host;
USBDeviceConnected * dev;
uint8_t buf_out[WANDONGLE_MAX_OUTEP_SIZE];
volatile uint32_t buf_out_len;
uint32_t max_out_size;
volatile bool lock_tx;
volatile bool cb_tx_en;
volatile bool cb_tx_pending;
Mutex tx_mtx;
uint8_t buf_in[WANDONGLE_MAX_INEP_SIZE];
volatile uint32_t buf_in_len;
volatile uint32_t buf_in_read_pos;
volatile bool lock_rx;
volatile bool cb_rx_en;
volatile bool cb_rx_pending;
Mutex rx_mtx;
IUSBHostSerialListener* listener;
void reset();
void rxHandler();
void txHandler();
};
#endif /* USBHOST_3GMODULE */
#endif
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