Changes to support Vodafone K4606
Dependencies: Socket USBHostWANDongle lwip-sys lwip
Fork of VodafoneUSBModem by
Diff: serial/io/IOSerialStream.h
- Revision:
- 8:04b6a042595f
- Parent:
- 0:3b2f052c333b
- Child:
- 22:06fb2a93a1f6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/serial/io/IOSerialStream.h Tue Jun 26 13:44:59 2012 +0000 @@ -0,0 +1,77 @@ +/* IOSerialStream.h */ +/* +Copyright (C) 2012 ARM Limited. + +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 IOSERIALSTREAM_H_ +#define IOSERIALSTREAM_H_ + +#include "core/fwk.h" + +#include "Serial.h" + +#include "rtos.h" +#include "core/MtxCircBuffer.h" + +/** Input Serial Stream for physical serial interfaces (UART...) +This class is not thread-safe, except for the *Abort() methods that can be called by any thread/ISR +*/ +#define CIRCBUF_SIZE 255 +class IOSerialStream : public IOStream +{ +public: + IOSerialStream(mbed::Serial& serial); + /*virtual*/ ~IOSerialStream(); + + //0 for non-blocking (returns immediately), osWaitForever for infinite blocking + virtual int read(uint8_t* buf, size_t* pLength, size_t maxLength, uint32_t timeout=osWaitForever); + virtual size_t available(); + virtual int waitAvailable(uint32_t timeout=osWaitForever); //Wait for data to be available + virtual int abortRead(); //Abort current reading (or waiting) operation + + + //0 for non-blocking (returns immediately), osWaitForever for infinite blocking + virtual int write(uint8_t* buf, size_t length, uint32_t timeout=osWaitForever); + virtual size_t space(); + virtual int waitSpace(uint32_t timeout=osWaitForever); //Wait for space to be available + virtual int abortWrite(); //Abort current writing (or waiting) operation + +private: + + mbed::Serial& m_serial; + volatile bool m_serialTxFifoEmpty; + + void setupReadableISR(bool en); + void readable(); //Callback from m_serial when new data is available + + Semaphore m_availableSphre; //Used for signalling + + void setupWriteableISR(bool en); + void writeable(); //Callback from m_serial when new space is available + + Semaphore m_spaceSphre; //Used for signalling + + MtxCircBuffer<uint8_t, CIRCBUF_SIZE + 1> m_inBuf; + MtxCircBuffer<uint8_t, CIRCBUF_SIZE + 1> m_outBuf; + +}; + +#endif /* IOSERIALSTREAM_H_ */