54b49f933a
base/traceflags.py:
removed TsunamiUart/TlaserUart and added a plain Uart
dev/alpha_console.cc:
updated for new simconsole
dev/platform.hh:
added a uart member to platform
dev/simconsole.cc:
dev/simconsole.hh:
removed lots of legacy code, it should all be ours now.
converted tabs to 8 spaces
added our copyright
dev/tsunami.cc:
uses simconsole.hh rather than console.hh
dev/tsunami_cchip.cc:
dev/tsunami_io.cc:
never needed console.hh
dev/tsunami_io.hh:
this does need eventq.hh and it just happend to be working whenn console.hh was
included everywhere
dev/tsunamireg.h:
added a couple more 8250/16550 uart defines
dev/uart.cc:
new uart code, rewritten to support both tlaser and tsunami (both a 8250 and 8530
uart).
dev/uart.hh:
updated for new uart, legacy code removed
--HG--
rename : dev/console.cc => dev/simconsole.cc
rename : dev/console.hh => dev/simconsole.hh
rename : dev/tsunami_uart.cc => dev/uart.cc
rename : dev/tsunami_uart.hh => dev/uart.hh
extra : convert_revision : e663352d49d4c2d3c95643030cf73c0e85ba2f08
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/*
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* Copyright (c) 2004 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* @file
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* Defines a 8250 UART
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*/
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#ifndef __TSUNAMI_UART_HH__
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#define __TSUNAMI_UART_HH__
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#include "dev/tsunamireg.h"
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#include "base/range.hh"
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#include "dev/io_device.hh"
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class SimConsole;
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class Platform;
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const int RX_INT = 0x1;
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const int TX_INT = 0x2;
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class Uart : public PioDevice
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{
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private:
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Addr addr;
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Addr size;
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SimConsole *cons;
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protected:
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int readAddr; // tlaser only
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uint8_t IER, DLAB, LCR, MCR;
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int status;
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class IntrEvent : public Event
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{
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protected:
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Uart *uart;
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public:
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IntrEvent(Uart *u);
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virtual void process();
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virtual const char *description();
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void scheduleIntr();
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};
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IntrEvent intrEvent;
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Platform *platform;
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public:
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Uart(const string &name, SimConsole *c, MemoryController *mmu,
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Addr a, Addr s, HierParams *hier, Bus *bus, Platform *p);
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Fault read(MemReqPtr &req, uint8_t *data);
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Fault write(MemReqPtr &req, const uint8_t *data);
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/**
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* Inform the uart that there is data available.
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*/
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void dataAvailable();
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/**
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* Return if we have an interrupt pending
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* @return interrupt status
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*/
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bool intStatus() { return status ? true : false; }
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virtual void serialize(std::ostream &os);
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virtual void unserialize(Checkpoint *cp, const std::string §ion);
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/**
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* Return how long this access will take.
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* @param req the memory request to calcuate
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* @return Tick when the request is done
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*/
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Tick cacheAccess(MemReqPtr &req);
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};
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#endif // __TSUNAMI_UART_HH__
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