I8259.py revision 9162:019047ead23b
13096Sstever@eecs.umich.edu# Copyright (c) 2008 The Regents of The University of Michigan 23096Sstever@eecs.umich.edu# All rights reserved. 33096Sstever@eecs.umich.edu# 43096Sstever@eecs.umich.edu# Redistribution and use in source and binary forms, with or without 53096Sstever@eecs.umich.edu# modification, are permitted provided that the following conditions are 63096Sstever@eecs.umich.edu# met: redistributions of source code must retain the above copyright 73096Sstever@eecs.umich.edu# notice, this list of conditions and the following disclaimer; 83096Sstever@eecs.umich.edu# redistributions in binary form must reproduce the above copyright 93096Sstever@eecs.umich.edu# notice, this list of conditions and the following disclaimer in the 103096Sstever@eecs.umich.edu# documentation and/or other materials provided with the distribution; 113096Sstever@eecs.umich.edu# neither the name of the copyright holders nor the names of its 123096Sstever@eecs.umich.edu# contributors may be used to endorse or promote products derived from 133096Sstever@eecs.umich.edu# this software without specific prior written permission. 143096Sstever@eecs.umich.edu# 153096Sstever@eecs.umich.edu# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 163096Sstever@eecs.umich.edu# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 173096Sstever@eecs.umich.edu# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 183096Sstever@eecs.umich.edu# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 193096Sstever@eecs.umich.edu# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 203096Sstever@eecs.umich.edu# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 213096Sstever@eecs.umich.edu# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 223096Sstever@eecs.umich.edu# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 233096Sstever@eecs.umich.edu# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 243096Sstever@eecs.umich.edu# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 253096Sstever@eecs.umich.edu# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 263096Sstever@eecs.umich.edu# 273096Sstever@eecs.umich.edu# Authors: Gabe Black 283096Sstever@eecs.umich.edu 293096Sstever@eecs.umich.edufrom m5.params import * 303096Sstever@eecs.umich.edufrom m5.proxy import * 313096Sstever@eecs.umich.edufrom Device import BasicPioDevice 323096Sstever@eecs.umich.edufrom X86IntPin import X86IntSourcePin, X86IntSinkPin 333096Sstever@eecs.umich.edu 343096Sstever@eecs.umich.educlass X86I8259CascadeMode(Enum): 353096Sstever@eecs.umich.edu map = {'I8259Master' : 0, 363096Sstever@eecs.umich.edu 'I8259Slave' : 1, 373096Sstever@eecs.umich.edu 'I8259Single' : 2 383096Sstever@eecs.umich.edu } 393096Sstever@eecs.umich.edu 403096Sstever@eecs.umich.educlass I8259(BasicPioDevice): 413096Sstever@eecs.umich.edu type = 'I8259' 423096Sstever@eecs.umich.edu cxx_class='X86ISA::I8259' 433096Sstever@eecs.umich.edu output = Param.X86IntSourcePin(X86IntSourcePin(), 443096Sstever@eecs.umich.edu 'The pin this I8259 drives') 453096Sstever@eecs.umich.edu mode = Param.X86I8259CascadeMode('How this I8259 is cascaded') 463096Sstever@eecs.umich.edu slave = Param.I8259(NULL, 'Slave I8259, if any') 473096Sstever@eecs.umich.edu 483096Sstever@eecs.umich.edu def pin(self, line): 493096Sstever@eecs.umich.edu return X86IntSinkPin(device=self, number=line) 503096Sstever@eecs.umich.edu