touchkit.cc revision 12660
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" 4912660Sandreas.sandberg@arm.com#include "dev/ps2/types.hh" 5012655Sandreas.sandberg@arm.com#include "params/PS2TouchKit.hh" 5112655Sandreas.sandberg@arm.com 5212655Sandreas.sandberg@arm.comPS2TouchKit::PS2TouchKit(const PS2TouchKitParams *p) 5312655Sandreas.sandberg@arm.com : PS2Device(p), 5412655Sandreas.sandberg@arm.com vnc(p->vnc), 5512658Sandreas.sandberg@arm.com enabled(false), touchKitEnabled(false) 5612655Sandreas.sandberg@arm.com{ 5712655Sandreas.sandberg@arm.com if (vnc) 5812655Sandreas.sandberg@arm.com vnc->setMouse(this); 5912655Sandreas.sandberg@arm.com} 6012655Sandreas.sandberg@arm.com 6112655Sandreas.sandberg@arm.comvoid 6212655Sandreas.sandberg@arm.comPS2TouchKit::serialize(CheckpointOut &cp) const 6312655Sandreas.sandberg@arm.com{ 6412655Sandreas.sandberg@arm.com PS2Device::serialize(cp); 6512655Sandreas.sandberg@arm.com 6612658Sandreas.sandberg@arm.com SERIALIZE_SCALAR(enabled); 6712658Sandreas.sandberg@arm.com SERIALIZE_SCALAR(touchKitEnabled); 6812655Sandreas.sandberg@arm.com} 6912655Sandreas.sandberg@arm.com 7012655Sandreas.sandberg@arm.comvoid 7112655Sandreas.sandberg@arm.comPS2TouchKit::unserialize(CheckpointIn &cp) 7212655Sandreas.sandberg@arm.com{ 7312655Sandreas.sandberg@arm.com PS2Device::unserialize(cp); 7412655Sandreas.sandberg@arm.com 7512658Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(enabled); 7612658Sandreas.sandberg@arm.com UNSERIALIZE_SCALAR(touchKitEnabled); 7712655Sandreas.sandberg@arm.com} 7812655Sandreas.sandberg@arm.com 7912656Sandreas.sandberg@arm.combool 8012656Sandreas.sandberg@arm.comPS2TouchKit::recv(const std::vector<uint8_t> &data) 8112655Sandreas.sandberg@arm.com{ 8212656Sandreas.sandberg@arm.com switch (data[0]) { 8312660Sandreas.sandberg@arm.com case Ps2::Reset: 8412658Sandreas.sandberg@arm.com DPRINTF(PS2, "Resetting device.\n"); 8512658Sandreas.sandberg@arm.com enabled = false; 8612658Sandreas.sandberg@arm.com touchKitEnabled = false; 8712655Sandreas.sandberg@arm.com sendAck(); 8812655Sandreas.sandberg@arm.com send(Ps2::SelfTestPass); 8912656Sandreas.sandberg@arm.com return true; 9012655Sandreas.sandberg@arm.com 9112660Sandreas.sandberg@arm.com case Ps2::ReadID: 9212655Sandreas.sandberg@arm.com sendAck(); 9312660Sandreas.sandberg@arm.com send(Ps2::Mouse::ID); 9412658Sandreas.sandberg@arm.com return true; 9512658Sandreas.sandberg@arm.com 9612655Sandreas.sandberg@arm.com case Ps2::Disable: 9712658Sandreas.sandberg@arm.com DPRINTF(PS2, "Disabling device.\n"); 9812658Sandreas.sandberg@arm.com enabled = false; 9912658Sandreas.sandberg@arm.com sendAck(); 10012658Sandreas.sandberg@arm.com return true; 10112658Sandreas.sandberg@arm.com 10212655Sandreas.sandberg@arm.com case Ps2::Enable: 10312658Sandreas.sandberg@arm.com DPRINTF(PS2, "Enabling device.\n"); 10412658Sandreas.sandberg@arm.com enabled = true; 10512658Sandreas.sandberg@arm.com sendAck(); 10612658Sandreas.sandberg@arm.com return true; 10712658Sandreas.sandberg@arm.com 10812660Sandreas.sandberg@arm.com case Ps2::DefaultsAndDisable: 10912658Sandreas.sandberg@arm.com DPRINTF(PS2, "Setting defaults and disabling device.\n"); 11012658Sandreas.sandberg@arm.com enabled = false; 11112655Sandreas.sandberg@arm.com sendAck(); 11212656Sandreas.sandberg@arm.com return true; 11312655Sandreas.sandberg@arm.com 11412660Sandreas.sandberg@arm.com case Ps2::Mouse::Scale1to1: 11512660Sandreas.sandberg@arm.com case Ps2::Mouse::Scale2to1: 11612660Sandreas.sandberg@arm.com sendAck(); 11712660Sandreas.sandberg@arm.com return true; 11812660Sandreas.sandberg@arm.com 11912660Sandreas.sandberg@arm.com case Ps2::Mouse::SetResolution: 12012660Sandreas.sandberg@arm.com case Ps2::Mouse::SampleRate: 12112660Sandreas.sandberg@arm.com sendAck(); 12212660Sandreas.sandberg@arm.com return data.size() == 2; 12312660Sandreas.sandberg@arm.com 12412660Sandreas.sandberg@arm.com case Ps2::Mouse::GetStatus: 12512655Sandreas.sandberg@arm.com sendAck(); 12612655Sandreas.sandberg@arm.com send(0); 12712655Sandreas.sandberg@arm.com send(2); // default resolution 12812655Sandreas.sandberg@arm.com send(100); // default sample rate 12912656Sandreas.sandberg@arm.com return true; 13012655Sandreas.sandberg@arm.com 13112660Sandreas.sandberg@arm.com case TpReadId: 13212660Sandreas.sandberg@arm.com // We're not a trackpoint device, this should make the probe 13312660Sandreas.sandberg@arm.com // go away 13412660Sandreas.sandberg@arm.com sendAck(); 13512660Sandreas.sandberg@arm.com send(0); 13612660Sandreas.sandberg@arm.com send(0); 13712660Sandreas.sandberg@arm.com sendAck(); 13812660Sandreas.sandberg@arm.com return true; 13912660Sandreas.sandberg@arm.com 14012660Sandreas.sandberg@arm.com case TouchKitDiag: 14112658Sandreas.sandberg@arm.com return recvTouchKit(data); 14212655Sandreas.sandberg@arm.com 14312655Sandreas.sandberg@arm.com default: 14412658Sandreas.sandberg@arm.com panic("Unknown byte received: %#x\n", data[0]); 14512655Sandreas.sandberg@arm.com } 14612655Sandreas.sandberg@arm.com} 14712655Sandreas.sandberg@arm.com 14812658Sandreas.sandberg@arm.combool 14912658Sandreas.sandberg@arm.comPS2TouchKit::recvTouchKit(const std::vector<uint8_t> &data) 15012658Sandreas.sandberg@arm.com{ 15112658Sandreas.sandberg@arm.com // Ack all incoming bytes 15212658Sandreas.sandberg@arm.com sendAck(); 15312658Sandreas.sandberg@arm.com 15412658Sandreas.sandberg@arm.com // Packet format is: 0x0A SIZE CMD DATA 15512660Sandreas.sandberg@arm.com assert(data[0] == TouchKitDiag); 15612658Sandreas.sandberg@arm.com if (data.size() < 3 || data.size() - 2 < data[1]) 15712658Sandreas.sandberg@arm.com return false; 15812658Sandreas.sandberg@arm.com 15912658Sandreas.sandberg@arm.com const uint8_t len = data[1]; 16012658Sandreas.sandberg@arm.com const uint8_t cmd = data[2]; 16112658Sandreas.sandberg@arm.com 16212658Sandreas.sandberg@arm.com // We have received at least one TouchKit diagnostic 16312658Sandreas.sandberg@arm.com // command. Enabled TouchKit reports. 16412658Sandreas.sandberg@arm.com touchKitEnabled = true; 16512658Sandreas.sandberg@arm.com 16612658Sandreas.sandberg@arm.com 16712658Sandreas.sandberg@arm.com switch (cmd) { 16812658Sandreas.sandberg@arm.com case TouchKitActive: 16912658Sandreas.sandberg@arm.com warn_if(len != 1, "Unexpected activate packet length: %u\n", len); 17012658Sandreas.sandberg@arm.com sendTouchKit('A'); 17112658Sandreas.sandberg@arm.com return true; 17212658Sandreas.sandberg@arm.com 17312658Sandreas.sandberg@arm.com default: 17412658Sandreas.sandberg@arm.com panic("Unimplemented touchscreen command: %#x\n", cmd); 17512658Sandreas.sandberg@arm.com } 17612658Sandreas.sandberg@arm.com} 17712658Sandreas.sandberg@arm.com 17812658Sandreas.sandberg@arm.comvoid 17912658Sandreas.sandberg@arm.comPS2TouchKit::sendTouchKit(const uint8_t *data, size_t size) 18012658Sandreas.sandberg@arm.com{ 18112660Sandreas.sandberg@arm.com send(TouchKitDiag); 18212658Sandreas.sandberg@arm.com send(size); 18312658Sandreas.sandberg@arm.com for (int i = 0; i < size; ++i) 18412658Sandreas.sandberg@arm.com send(data[i]); 18512658Sandreas.sandberg@arm.com} 18612658Sandreas.sandberg@arm.com 18712658Sandreas.sandberg@arm.com 18812655Sandreas.sandberg@arm.comvoid 18912655Sandreas.sandberg@arm.comPS2TouchKit::mouseAt(uint16_t x, uint16_t y, uint8_t buttons) 19012655Sandreas.sandberg@arm.com{ 19112655Sandreas.sandberg@arm.com // If the driver hasn't initialized the device yet, no need to try and send 19212655Sandreas.sandberg@arm.com // it anything. Similarly we can get vnc mouse events orders of magnitude 19312655Sandreas.sandberg@arm.com // faster than m5 can process them. Only queue up two sets mouse movements 19412655Sandreas.sandberg@arm.com // and don't add more until those are processed. 19512658Sandreas.sandberg@arm.com if (!enabled || !touchKitEnabled || sendPending() > 10) 19612655Sandreas.sandberg@arm.com return; 19712655Sandreas.sandberg@arm.com 19812655Sandreas.sandberg@arm.com // Convert screen coordinates to touchpad coordinates 19912655Sandreas.sandberg@arm.com const uint16_t _x = (2047.0 / vnc->videoWidth()) * x; 20012655Sandreas.sandberg@arm.com const uint16_t _y = (2047.0 / vnc->videoHeight()) * y; 20112655Sandreas.sandberg@arm.com 20212655Sandreas.sandberg@arm.com const uint8_t resp[] = { 20312655Sandreas.sandberg@arm.com buttons, 20412655Sandreas.sandberg@arm.com (uint8_t)(_x >> 7), (uint8_t)(_x & 0x7f), 20512655Sandreas.sandberg@arm.com (uint8_t)(_y >> 7), (uint8_t)(_y & 0x7f), 20612655Sandreas.sandberg@arm.com }; 20712655Sandreas.sandberg@arm.com 20812655Sandreas.sandberg@arm.com send(resp, sizeof(resp)); 20912655Sandreas.sandberg@arm.com} 21012655Sandreas.sandberg@arm.com 21112655Sandreas.sandberg@arm.comPS2TouchKit * 21212655Sandreas.sandberg@arm.comPS2TouchKitParams::create() 21312655Sandreas.sandberg@arm.com{ 21412655Sandreas.sandberg@arm.com return new PS2TouchKit(this); 21512655Sandreas.sandberg@arm.com} 216