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[/] [s6soc/] [trunk/] [sw/] [host/] [llcomms.h] - Rev 45
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//////////////////////////////////////////////////////////////////////////////// // // Filename: llcomms.h // // Project: CMod S6 System on a Chip, ZipCPU demonstration project // // Purpose: This defines a C++ interface on the command side that can // interact with an FPGA, both sending and receiving characters. // Any bus interaction will call routines from this lower level // library to accomplish the actual connection to and // transmission to/from the board. // // Creator: Dan Gisselquist, Ph.D. // Gisselquist Technology, LLC // //////////////////////////////////////////////////////////////////////////////// // // Copyright (C) 2015-2016, Gisselquist Technology, LLC // // This program is free software (firmware): you can redistribute it and/or // modify it under the terms of the GNU General Public License as published // by the Free Software Foundation, either version 3 of the License, or (at // your option) any later version. // // This program is distributed in the hope that it will be useful, but WITHOUT // ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with this program. (It's in the $(ROOT)/doc directory, run make with no // target there if the PDF file isn't present.) If not, see // <http://www.gnu.org/licenses/> for a copy. // // License: GPL, v3, as defined and found on www.gnu.org, // http://www.gnu.org/licenses/gpl.html // // //////////////////////////////////////////////////////////////////////////////// // // #ifndef LLCOMMS_H #define LLCOMMS_H class LLCOMMSI { protected: int m_fdw, m_fdr; LLCOMMSI(void); public: unsigned long m_total_nread, m_total_nwrit; virtual ~LLCOMMSI(void) { close(); } virtual void kill(void) { this->close(); }; virtual void close(void); virtual void write(char *buf, int len); virtual int read(char *buf, int len); virtual bool poll(unsigned ms); // Tests whether or not bytes are available to be read, returns a // count of the bytes that may be immediately read virtual int available(void); // { return 0; }; }; class TTYCOMMS : public LLCOMMSI { public: TTYCOMMS(const char *dev); }; class NETCOMMS : public LLCOMMSI { public: NETCOMMS(const char *dev, const int port); }; #endif