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Diff: USBHost3GModule/WANDongleSerialPort.h
- Revision:
- 1:ab240722d7ef
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBHost3GModule/WANDongleSerialPort.h Wed Feb 15 10:49:44 2017 +0100 @@ -0,0 +1,133 @@ +/* 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 +