speaker.cc revision 5390
113168Smatt.horsnell@arm.com/* 213168Smatt.horsnell@arm.com * Copyright (c) 2004-2005 The Regents of The University of Michigan 313168Smatt.horsnell@arm.com * All rights reserved. 413168Smatt.horsnell@arm.com * 513168Smatt.horsnell@arm.com * Redistribution and use in source and binary forms, with or without 613168Smatt.horsnell@arm.com * modification, are permitted provided that the following conditions are 713168Smatt.horsnell@arm.com * met: redistributions of source code must retain the above copyright 813168Smatt.horsnell@arm.com * notice, this list of conditions and the following disclaimer; 913168Smatt.horsnell@arm.com * redistributions in binary form must reproduce the above copyright 1013168Smatt.horsnell@arm.com * notice, this list of conditions and the following disclaimer in the 1113168Smatt.horsnell@arm.com * documentation and/or other materials provided with the distribution; 1213168Smatt.horsnell@arm.com * neither the name of the copyright holders nor the names of its 1313168Smatt.horsnell@arm.com * contributors may be used to endorse or promote products derived from 1413168Smatt.horsnell@arm.com * this software without specific prior written permission. 1513168Smatt.horsnell@arm.com * 1613168Smatt.horsnell@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1713168Smatt.horsnell@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1813168Smatt.horsnell@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1913168Smatt.horsnell@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2013168Smatt.horsnell@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2113168Smatt.horsnell@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2213168Smatt.horsnell@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2313168Smatt.horsnell@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2413168Smatt.horsnell@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2513168Smatt.horsnell@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2613168Smatt.horsnell@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2713168Smatt.horsnell@arm.com * 2813168Smatt.horsnell@arm.com * Authors: Gabe Black 2913168Smatt.horsnell@arm.com */ 3013168Smatt.horsnell@arm.com 3113168Smatt.horsnell@arm.com#include "base/bitunion.hh" 3213168Smatt.horsnell@arm.com#include "dev/x86/south_bridge/speaker.hh" 3313168Smatt.horsnell@arm.com#include "mem/packet_access.hh" 3413168Smatt.horsnell@arm.com 3513168Smatt.horsnell@arm.comBitUnion8(SpeakerControl) 3613168Smatt.horsnell@arm.com Bitfield<0> gate; 3713168Smatt.horsnell@arm.com Bitfield<1> speaker; 3813168Smatt.horsnell@arm.com Bitfield<5> timer; 3913168Smatt.horsnell@arm.comEndBitUnion(SpeakerControl) 4013168Smatt.horsnell@arm.com 4113168Smatt.horsnell@arm.comTick 4213168Smatt.horsnell@arm.comX86ISA::Speaker::read(PacketPtr pkt) 4313168Smatt.horsnell@arm.com{ 4413168Smatt.horsnell@arm.com assert(pkt->getAddr() == addrRange.start); 4513168Smatt.horsnell@arm.com assert(pkt->getSize() == 1); 4613168Smatt.horsnell@arm.com SpeakerControl val = 0xFF; 4713168Smatt.horsnell@arm.com warn("Reading from speaker device: gate %s, speaker %s, output %s.\n", 4813168Smatt.horsnell@arm.com val.gate ? "on" : "off", 4913168Smatt.horsnell@arm.com val.speaker ? "on" : "off", 5013168Smatt.horsnell@arm.com val.timer ? "on" : "off"); 5113168Smatt.horsnell@arm.com pkt->set((uint8_t)val); 5213168Smatt.horsnell@arm.com return latency; 5313168Smatt.horsnell@arm.com} 5413168Smatt.horsnell@arm.com 5513169Smatt.horsnell@arm.comTick 5613169Smatt.horsnell@arm.comX86ISA::Speaker::write(PacketPtr pkt) 5713169Smatt.horsnell@arm.com{ 5813169Smatt.horsnell@arm.com assert(pkt->getAddr() == addrRange.start); 5913169Smatt.horsnell@arm.com assert(pkt->getSize() == 1); 6013169Smatt.horsnell@arm.com SpeakerControl val = pkt->get<uint8_t>(); 6113169Smatt.horsnell@arm.com warn("Writing to speaker device: gate %s, speaker %s.\n", 6213169Smatt.horsnell@arm.com val.gate ? "on" : "off", val.speaker ? "on" : "off"); 6313169Smatt.horsnell@arm.com return latency; 6413169Smatt.horsnell@arm.com} 6513169Smatt.horsnell@arm.com