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/*
* Copyright (c) 2017-2018 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2008 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: Gabe Black
* Andreas Sandberg
*/
#include "dev/ps2/mouse.hh"
#include "base/logging.hh"
#include "debug/PS2.hh"
#include "dev/ps2/types.hh"
#include "params/PS2Mouse.hh"
PS2Mouse::PS2Mouse(const PS2MouseParams *p)
: PS2Device(p),
status(0), resolution(4), sampleRate(100)
{
}
bool
PS2Mouse::recv(const std::vector<uint8_t> &data)
{
switch (data[0]) {
case Ps2::ReadID:
DPRINTF(PS2, "Mouse ID requested.\n");
sendAck();
send(Ps2::Mouse::ID);
return true;
case Ps2::Disable:
DPRINTF(PS2, "Disabling data reporting.\n");
status.enabled = 0;
sendAck();
return true;
case Ps2::Enable:
DPRINTF(PS2, "Enabling data reporting.\n");
status.enabled = 1;
sendAck();
return true;
case Ps2::Resend:
panic("Mouse resend unimplemented.\n");
case Ps2::Reset:
DPRINTF(PS2, "Resetting the mouse.\n");
sampleRate = 100;
resolution = 4;
status.twoToOne = 0;
status.enabled = 0;
sendAck();
send(Ps2::SelfTestPass);
send(Ps2::Mouse::ID);
return true;
case Ps2::Mouse::Scale1to1:
DPRINTF(PS2, "Setting mouse scale to 1:1.\n");
status.twoToOne = 0;
sendAck();
return true;
case Ps2::Mouse::Scale2to1:
DPRINTF(PS2, "Setting mouse scale to 2:1.\n");
status.twoToOne = 1;
sendAck();
return true;
case Ps2::Mouse::SetResolution:
if (data.size() == 1) {
DPRINTF(PS2, "Setting mouse resolution.\n");
sendAck();
return false;
} else {
DPRINTF(PS2, "Mouse resolution set to %d.\n", data[1]);
resolution = data[1];
sendAck();
return true;
}
case Ps2::Mouse::GetStatus:
DPRINTF(PS2, "Getting mouse status.\n");
sendAck();
send((uint8_t *)&(status), 1);
send(&resolution, sizeof(resolution));
send(&sampleRate, sizeof(sampleRate));
return true;
case Ps2::Mouse::ReadData:
panic("Reading mouse data unimplemented.\n");
case Ps2::Mouse::ResetWrapMode:
panic("Resetting mouse wrap mode unimplemented.\n");
case Ps2::Mouse::WrapMode:
panic("Setting mouse wrap mode unimplemented.\n");
case Ps2::Mouse::RemoteMode:
panic("Setting mouse remote mode unimplemented.\n");
case Ps2::Mouse::SampleRate:
if (data.size() == 1) {
DPRINTF(PS2, "Setting mouse sample rate.\n");
sendAck();
return false;
} else {
DPRINTF(PS2, "Mouse sample rate %d samples "
"per second.\n", data[1]);
sampleRate = data[1];
sendAck();
return true;
}
case Ps2::DefaultsAndDisable:
DPRINTF(PS2, "Disabling and resetting mouse.\n");
sampleRate = 100;
resolution = 4;
status.twoToOne = 0;
status.enabled = 0;
sendAck();
return true;
default:
warn("Unknown mouse command %#02x.\n", data[0]);
send(Ps2::Resend);
return true;
}
}
void
PS2Mouse::serialize(CheckpointOut &cp) const
{
PS2Device::serialize(cp);
SERIALIZE_SCALAR(status);
SERIALIZE_SCALAR(resolution);
SERIALIZE_SCALAR(sampleRate);
}
void
PS2Mouse::unserialize(CheckpointIn &cp)
{
PS2Device::unserialize(cp);
UNSERIALIZE_SCALAR(status);
UNSERIALIZE_SCALAR(resolution);
UNSERIALIZE_SCALAR(sampleRate);
}
PS2Mouse *
PS2MouseParams::create()
{
return new PS2Mouse(this);
}
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