touchkit.cc revision 12655
112655Sandreas.sandberg@arm.com/* 212655Sandreas.sandberg@arm.com * Copyright (c) 2010, 2017-2018 ARM Limited 312655Sandreas.sandberg@arm.com * All rights reserved 412655Sandreas.sandberg@arm.com * 512655Sandreas.sandberg@arm.com * The license below extends only to copyright in the software and shall 612655Sandreas.sandberg@arm.com * not be construed as granting a license to any other intellectual 712655Sandreas.sandberg@arm.com * property including but not limited to intellectual property relating 812655Sandreas.sandberg@arm.com * to a hardware implementation of the functionality of the software 912655Sandreas.sandberg@arm.com * licensed hereunder. You may use the software subject to the license 1012655Sandreas.sandberg@arm.com * terms below provided that you ensure that this notice is replicated 1112655Sandreas.sandberg@arm.com * unmodified and in its entirety in all distributions of the software, 1212655Sandreas.sandberg@arm.com * modified or unmodified, in source code or in binary form. 1312655Sandreas.sandberg@arm.com * 1412655Sandreas.sandberg@arm.com * Copyright (c) 2005 The Regents of The University of Michigan 1512655Sandreas.sandberg@arm.com * All rights reserved. 1612655Sandreas.sandberg@arm.com * 1712655Sandreas.sandberg@arm.com * Redistribution and use in source and binary forms, with or without 1812655Sandreas.sandberg@arm.com * modification, are permitted provided that the following conditions are 1912655Sandreas.sandberg@arm.com * met: redistributions of source code must retain the above copyright 2012655Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer; 2112655Sandreas.sandberg@arm.com * redistributions in binary form must reproduce the above copyright 2212655Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer in the 2312655Sandreas.sandberg@arm.com * documentation and/or other materials provided with the distribution; 2412655Sandreas.sandberg@arm.com * neither the name of the copyright holders nor the names of its 2512655Sandreas.sandberg@arm.com * contributors may be used to endorse or promote products derived from 2612655Sandreas.sandberg@arm.com * this software without specific prior written permission. 2712655Sandreas.sandberg@arm.com * 2812655Sandreas.sandberg@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2912655Sandreas.sandberg@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 3012655Sandreas.sandberg@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 3112655Sandreas.sandberg@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 3212655Sandreas.sandberg@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3312655Sandreas.sandberg@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3412655Sandreas.sandberg@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3512655Sandreas.sandberg@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3612655Sandreas.sandberg@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3712655Sandreas.sandberg@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3812655Sandreas.sandberg@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3912655Sandreas.sandberg@arm.com * 4012655Sandreas.sandberg@arm.com * Authors: Ali Saidi 4112655Sandreas.sandberg@arm.com * William Wang 4212655Sandreas.sandberg@arm.com * Andreas Sandberg 4312655Sandreas.sandberg@arm.com */ 4412655Sandreas.sandberg@arm.com 4512655Sandreas.sandberg@arm.com#include "dev/ps2/touchkit.hh" 4612655Sandreas.sandberg@arm.com 4712655Sandreas.sandberg@arm.com#include "base/logging.hh" 4812655Sandreas.sandberg@arm.com#include "debug/PS2.hh" 4912655Sandreas.sandberg@arm.com#include "dev/ps2.hh" 5012655Sandreas.sandberg@arm.com#include "params/PS2TouchKit.hh" 5112655Sandreas.sandberg@arm.com 5212655Sandreas.sandberg@arm.comconst uint8_t PS2TouchKit::ID[] = {0x00}; 5312655Sandreas.sandberg@arm.com 5412655Sandreas.sandberg@arm.comPS2TouchKit::PS2TouchKit(const PS2TouchKitParams *p) 5512655Sandreas.sandberg@arm.com : PS2Device(p), 5612655Sandreas.sandberg@arm.com vnc(p->vnc), 5712655Sandreas.sandberg@arm.com ackNext(false), 5812655Sandreas.sandberg@arm.com driverInitialized(false) 5912655Sandreas.sandberg@arm.com{ 6012655Sandreas.sandberg@arm.com if (vnc) 6112655Sandreas.sandberg@arm.com vnc->setMouse(this); 6212655Sandreas.sandberg@arm.com} 6312655Sandreas.sandberg@arm.com 6412655Sandreas.sandberg@arm.comvoid 6512655Sandreas.sandberg@arm.comPS2TouchKit::serialize(CheckpointOut &cp) const 6612655Sandreas.sandberg@arm.com{ 6712655Sandreas.sandberg@arm.com PS2Device::serialize(cp); 6812655Sandreas.sandberg@arm.com 6912655Sandreas.sandberg@arm.com SERIALIZE_SCALAR(ackNext); 7012655Sandreas.sandberg@arm.com SERIALIZE_SCALAR(driverInitialized); 7112655Sandreas.sandberg@arm.com} 7212655Sandreas.sandberg@arm.com 7312655Sandreas.sandberg@arm.comvoid 7412655Sandreas.sandberg@arm.comPS2TouchKit::unserialize(CheckpointIn &cp) 7512655Sandreas.sandberg@arm.com{ 7612655Sandreas.sandberg@arm.com PS2Device::unserialize(cp); 7712655Sandreas.sandberg@arm.com 7812655Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(ackNext); 7912655Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(driverInitialized); 8012655Sandreas.sandberg@arm.com} 8112655Sandreas.sandberg@arm.com 8212655Sandreas.sandberg@arm.comvoid 8312655Sandreas.sandberg@arm.comPS2TouchKit::recv(uint8_t data) 8412655Sandreas.sandberg@arm.com{ 8512655Sandreas.sandberg@arm.com if (ackNext) { 8612655Sandreas.sandberg@arm.com ackNext--; 8712655Sandreas.sandberg@arm.com sendAck(); 8812655Sandreas.sandberg@arm.com return; 8912655Sandreas.sandberg@arm.com } 9012655Sandreas.sandberg@arm.com 9112655Sandreas.sandberg@arm.com switch (data) { 9212655Sandreas.sandberg@arm.com case Ps2::Ps2Reset: 9312655Sandreas.sandberg@arm.com sendAck(); 9412655Sandreas.sandberg@arm.com send(Ps2::SelfTestPass); 9512655Sandreas.sandberg@arm.com break; 9612655Sandreas.sandberg@arm.com 9712655Sandreas.sandberg@arm.com case Ps2::SetResolution: 9812655Sandreas.sandberg@arm.com case Ps2::SetRate: 9912655Sandreas.sandberg@arm.com case Ps2::SetStatusLed: 10012655Sandreas.sandberg@arm.com sendAck(); 10112655Sandreas.sandberg@arm.com ackNext = 1; 10212655Sandreas.sandberg@arm.com break; 10312655Sandreas.sandberg@arm.com 10412655Sandreas.sandberg@arm.com case Ps2::ReadId: 10512655Sandreas.sandberg@arm.com sendAck(); 10612655Sandreas.sandberg@arm.com send((const uint8_t *)&ID, sizeof(ID)); 10712655Sandreas.sandberg@arm.com break; 10812655Sandreas.sandberg@arm.com 10912655Sandreas.sandberg@arm.com case Ps2::TpReadId: 11012655Sandreas.sandberg@arm.com // We're not a trackpoint device, this should make the probe 11112655Sandreas.sandberg@arm.com // go away 11212655Sandreas.sandberg@arm.com sendAck(); 11312655Sandreas.sandberg@arm.com send(0); 11412655Sandreas.sandberg@arm.com send(0); 11512655Sandreas.sandberg@arm.com sendAck(); 11612655Sandreas.sandberg@arm.com break; 11712655Sandreas.sandberg@arm.com 11812655Sandreas.sandberg@arm.com case Ps2::SetScaling1_1: 11912655Sandreas.sandberg@arm.com case Ps2::SetScaling1_2: 12012655Sandreas.sandberg@arm.com case Ps2::Disable: 12112655Sandreas.sandberg@arm.com case Ps2::Enable: 12212655Sandreas.sandberg@arm.com case Ps2::SetDefaults: 12312655Sandreas.sandberg@arm.com sendAck(); 12412655Sandreas.sandberg@arm.com break; 12512655Sandreas.sandberg@arm.com 12612655Sandreas.sandberg@arm.com case Ps2::StatusRequest: 12712655Sandreas.sandberg@arm.com sendAck(); 12812655Sandreas.sandberg@arm.com send(0); 12912655Sandreas.sandberg@arm.com send(2); // default resolution 13012655Sandreas.sandberg@arm.com send(100); // default sample rate 13112655Sandreas.sandberg@arm.com break; 13212655Sandreas.sandberg@arm.com 13312655Sandreas.sandberg@arm.com case Ps2::TouchKitId: 13412655Sandreas.sandberg@arm.com ackNext = 2; 13512655Sandreas.sandberg@arm.com sendAck(); 13612655Sandreas.sandberg@arm.com send(Ps2::TouchKitId); 13712655Sandreas.sandberg@arm.com send(1); 13812655Sandreas.sandberg@arm.com send('A'); 13912655Sandreas.sandberg@arm.com 14012655Sandreas.sandberg@arm.com driverInitialized = true; 14112655Sandreas.sandberg@arm.com break; 14212655Sandreas.sandberg@arm.com 14312655Sandreas.sandberg@arm.com default: 14412655Sandreas.sandberg@arm.com panic("Unknown byte received: %d\n", data); 14512655Sandreas.sandberg@arm.com } 14612655Sandreas.sandberg@arm.com} 14712655Sandreas.sandberg@arm.com 14812655Sandreas.sandberg@arm.comvoid 14912655Sandreas.sandberg@arm.comPS2TouchKit::mouseAt(uint16_t x, uint16_t y, uint8_t buttons) 15012655Sandreas.sandberg@arm.com{ 15112655Sandreas.sandberg@arm.com // If the driver hasn't initialized the device yet, no need to try and send 15212655Sandreas.sandberg@arm.com // it anything. Similarly we can get vnc mouse events orders of magnitude 15312655Sandreas.sandberg@arm.com // faster than m5 can process them. Only queue up two sets mouse movements 15412655Sandreas.sandberg@arm.com // and don't add more until those are processed. 15512655Sandreas.sandberg@arm.com if (!driverInitialized || sendPending() > 10) 15612655Sandreas.sandberg@arm.com return; 15712655Sandreas.sandberg@arm.com 15812655Sandreas.sandberg@arm.com // Convert screen coordinates to touchpad coordinates 15912655Sandreas.sandberg@arm.com const uint16_t _x = (2047.0 / vnc->videoWidth()) * x; 16012655Sandreas.sandberg@arm.com const uint16_t _y = (2047.0 / vnc->videoHeight()) * y; 16112655Sandreas.sandberg@arm.com 16212655Sandreas.sandberg@arm.com const uint8_t resp[] = { 16312655Sandreas.sandberg@arm.com buttons, 16412655Sandreas.sandberg@arm.com (uint8_t)(_x >> 7), (uint8_t)(_x & 0x7f), 16512655Sandreas.sandberg@arm.com (uint8_t)(_y >> 7), (uint8_t)(_y & 0x7f), 16612655Sandreas.sandberg@arm.com }; 16712655Sandreas.sandberg@arm.com 16812655Sandreas.sandberg@arm.com send(resp, sizeof(resp)); 16912655Sandreas.sandberg@arm.com} 17012655Sandreas.sandberg@arm.com 17112655Sandreas.sandberg@arm.comPS2TouchKit * 17212655Sandreas.sandberg@arm.comPS2TouchKitParams::create() 17312655Sandreas.sandberg@arm.com{ 17412655Sandreas.sandberg@arm.com return new PS2TouchKit(this); 17512655Sandreas.sandberg@arm.com} 176