diff options
author | Nathan Binkert <nate@binkert.org> | 2008-06-17 20:29:06 -0700 |
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committer | Nathan Binkert <nate@binkert.org> | 2008-06-17 20:29:06 -0700 |
commit | 00df9016fead5f7427576acf6d3faee29779f0a1 (patch) | |
tree | bad5b6b78710fd0e82dcff5b27d2088ec6d706dc /src/dev/terminal.hh | |
parent | fa8f91fdc0609fb9cb8bcde22b440b40e52f1cc8 (diff) | |
download | gem5-00df9016fead5f7427576acf6d3faee29779f0a1.tar.xz |
Rename SimConsole to Terminal since it makes more sense
--HG--
rename : src/dev/SimConsole.py => src/dev/Terminal.py
rename : src/dev/simconsole.cc => src/dev/terminal.cc
rename : src/dev/simconsole.hh => src/dev/terminal.hh
Diffstat (limited to 'src/dev/terminal.hh')
-rw-r--r-- | src/dev/terminal.hh | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/dev/terminal.hh b/src/dev/terminal.hh new file mode 100644 index 000000000..d2499b6b2 --- /dev/null +++ b/src/dev/terminal.hh @@ -0,0 +1,146 @@ +/* + * Copyright (c) 2001-2005 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Nathan Binkert + * Ali Saidi + */ + +/* @file + * User Terminal Interface + */ + +#ifndef __DEV_TERMINAL_HH__ +#define __DEV_TERMINAL_HH__ + +#include <iostream> + +#include "base/circlebuf.hh" +#include "cpu/intr_control.hh" +#include "base/pollevent.hh" +#include "base/socket.hh" +#include "sim/sim_object.hh" +#include "params/Terminal.hh" + +class TerminalListener; +class Uart; + +class Terminal : public SimObject +{ + public: + Uart *uart; + + protected: + class ListenEvent : public PollEvent + { + protected: + Terminal *term; + + public: + ListenEvent(Terminal *t, int fd, int e); + void process(int revent); + }; + + friend class ListenEvent; + ListenEvent *listenEvent; + + class DataEvent : public PollEvent + { + protected: + Terminal *term; + + public: + DataEvent(Terminal *t, int fd, int e); + void process(int revent); + }; + + friend class DataEvent; + DataEvent *dataEvent; + + protected: + int number; + int data_fd; + + public: + typedef TerminalParams Params; + Terminal(const Params *p); + ~Terminal(); + + protected: + ListenSocket listener; + + void listen(int port); + void accept(); + + protected: + CircleBuf txbuf; + CircleBuf rxbuf; + std::ostream *outfile; +#if TRACING_ON == 1 + CircleBuf linebuf; +#endif + + public: + /////////////////////// + // Terminal Interface + + void data(); + + void read(uint8_t &c) { read(&c, 1); } + size_t read(uint8_t *buf, size_t len); + void write(uint8_t c) { write(&c, 1); } + size_t write(const uint8_t *buf, size_t len); + void detach(); + + public: + ///////////////// + // OS interface + + // Get a character from the terminal. + uint8_t in(); + + // get a character from the terminal in the console specific format + // corresponds to GETC: + // retval<63:61> + // 000: success: character received + // 001: success: character received, more pending + // 100: failure: no character ready + // 110: failure: character received with error + // 111: failure: character received with error, more pending + // retval<31:0> + // character read from console + // + // Interrupts are cleared when the buffer is empty. + uint64_t console_in(); + + // Send a character to the terminal + void out(char c); + + // Ask the terminal if data is available + bool dataAvailable() { return !rxbuf.empty(); } +}; + +#endif // __DEV_TERMINAL_HH__ |