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Diffstat (limited to 'src/dev/ps2/mouse.cc')
| -rw-r--r-- | src/dev/ps2/mouse.cc | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/dev/ps2/mouse.cc b/src/dev/ps2/mouse.cc new file mode 100644 index 000000000..1bdf39c59 --- /dev/null +++ b/src/dev/ps2/mouse.cc @@ -0,0 +1,189 @@ +/* + * 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 "params/PS2Mouse.hh" + +const uint8_t PS2Mouse::ID[] = {0x00}; +const uint8_t BatSuccessful = 0xaa; + +PS2Mouse::PS2Mouse(const PS2MouseParams *p) + : PS2Device(p), + lastCommand(NoCommand), + status(0), resolution(4), sampleRate(100) +{ +} + +void +PS2Mouse::recv(uint8_t data) +{ + if (lastCommand != NoCommand) { + switch(lastCommand) { + case SetResolution: + DPRINTF(PS2, "Mouse resolution set to %d.\n", data); + resolution = data; + sendAck(); + lastCommand = NoCommand; + break; + case SampleRate: + DPRINTF(PS2, "Mouse sample rate %d samples " + "per second.\n", data); + sampleRate = data; + sendAck(); + lastCommand = NoCommand; + break; + default: + panic("Not expecting data for a mouse command.\n"); + } + return; + } + switch (data) { + case Scale1to1: + DPRINTF(PS2, "Setting mouse scale to 1:1.\n"); + status.twoToOne = 0; + sendAck(); + break; + case Scale2to1: + DPRINTF(PS2, "Setting mouse scale to 2:1.\n"); + status.twoToOne = 1; + sendAck(); + break; + case SetResolution: + DPRINTF(PS2, "Setting mouse resolution.\n"); + lastCommand = SetResolution; + sendAck(); + break; + case GetStatus: + DPRINTF(PS2, "Getting mouse status.\n"); + sendAck(); + send((uint8_t *)&(status), 1); + send(&resolution, sizeof(resolution)); + send(&sampleRate, sizeof(sampleRate)); + break; + case ReadData: + panic("Reading mouse data unimplemented.\n"); + case ResetWrapMode: + panic("Resetting mouse wrap mode unimplemented.\n"); + case WrapMode: + panic("Setting mouse wrap mode unimplemented.\n"); + case RemoteMode: + panic("Setting mouse remote mode unimplemented.\n"); + case ReadID: + DPRINTF(PS2, "Mouse ID requested.\n"); + sendAck(); + send(ID, sizeof(ID)); + break; + case SampleRate: + DPRINTF(PS2, "Setting mouse sample rate.\n"); + lastCommand = SampleRate; + sendAck(); + break; + case DisableReporting: + DPRINTF(PS2, "Disabling data reporting.\n"); + status.enabled = 0; + sendAck(); + break; + case EnableReporting: + DPRINTF(PS2, "Enabling data reporting.\n"); + status.enabled = 1; + sendAck(); + break; + case DefaultsAndDisable: + DPRINTF(PS2, "Disabling and resetting mouse.\n"); + sampleRate = 100; + resolution = 4; + status.twoToOne = 0; + status.enabled = 0; + sendAck(); + break; + case Resend: + panic("Mouse resend unimplemented.\n"); + case Reset: + DPRINTF(PS2, "Resetting the mouse.\n"); + sampleRate = 100; + resolution = 4; + status.twoToOne = 0; + status.enabled = 0; + sendAck(); + send(&BatSuccessful, sizeof(BatSuccessful)); + send(ID, sizeof(ID)); + break; + default: + warn("Unknown mouse command %#02x.\n", data); + send(Resend); + break; + } +} + +void +PS2Mouse::serialize(CheckpointOut &cp) const +{ + PS2Device::serialize(cp); + + SERIALIZE_SCALAR(lastCommand); + + SERIALIZE_SCALAR(status); + SERIALIZE_SCALAR(resolution); + SERIALIZE_SCALAR(sampleRate); +} + +void +PS2Mouse::unserialize(CheckpointIn &cp) +{ + PS2Device::unserialize(cp); + + UNSERIALIZE_SCALAR(lastCommand); + + UNSERIALIZE_SCALAR(status); + UNSERIALIZE_SCALAR(resolution); + UNSERIALIZE_SCALAR(sampleRate); +} + +PS2Mouse * +PS2MouseParams::create() +{ + return new PS2Mouse(this); +} |