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