Diff: USBHost/USBHost3GModule/WANDongleSerialPort.h

Revision:

1:0dac72ab5910

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBHost/USBHost3GModule/WANDongleSerialPort.h	Wed Jun 05 04:54:37 2019 +0000
@@ -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
+