mouse.cc revision 12656:335489e574f3
1/* 2 * Copyright (c) 2017-2018 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2008 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Gabe Black 41 * Andreas Sandberg 42 */ 43 44#include "dev/ps2/mouse.hh" 45 46#include "base/logging.hh" 47#include "debug/PS2.hh" 48#include "params/PS2Mouse.hh" 49 50const uint8_t PS2Mouse::ID[] = {0x00}; 51const uint8_t BatSuccessful = 0xaa; 52 53PS2Mouse::PS2Mouse(const PS2MouseParams *p) 54 : PS2Device(p), 55 status(0), resolution(4), sampleRate(100) 56{ 57} 58 59bool 60PS2Mouse::recv(const std::vector<uint8_t> &data) 61{ 62 switch (data[0]) { 63 case Scale1to1: 64 DPRINTF(PS2, "Setting mouse scale to 1:1.\n"); 65 status.twoToOne = 0; 66 sendAck(); 67 return true; 68 case Scale2to1: 69 DPRINTF(PS2, "Setting mouse scale to 2:1.\n"); 70 status.twoToOne = 1; 71 sendAck(); 72 return true; 73 case SetResolution: 74 if (data.size() == 1) { 75 DPRINTF(PS2, "Setting mouse resolution.\n"); 76 sendAck(); 77 return false; 78 } else { 79 DPRINTF(PS2, "Mouse resolution set to %d.\n", data[1]); 80 resolution = data[1]; 81 sendAck(); 82 return true; 83 } 84 case GetStatus: 85 DPRINTF(PS2, "Getting mouse status.\n"); 86 sendAck(); 87 send((uint8_t *)&(status), 1); 88 send(&resolution, sizeof(resolution)); 89 send(&sampleRate, sizeof(sampleRate)); 90 return true; 91 case ReadData: 92 panic("Reading mouse data unimplemented.\n"); 93 case ResetWrapMode: 94 panic("Resetting mouse wrap mode unimplemented.\n"); 95 case WrapMode: 96 panic("Setting mouse wrap mode unimplemented.\n"); 97 case RemoteMode: 98 panic("Setting mouse remote mode unimplemented.\n"); 99 case ReadID: 100 DPRINTF(PS2, "Mouse ID requested.\n"); 101 sendAck(); 102 send(ID, sizeof(ID)); 103 return true; 104 case SampleRate: 105 if (data.size() == 1) { 106 DPRINTF(PS2, "Setting mouse sample rate.\n"); 107 sendAck(); 108 return false; 109 } else { 110 DPRINTF(PS2, "Mouse sample rate %d samples " 111 "per second.\n", data[1]); 112 sampleRate = data[1]; 113 sendAck(); 114 return true; 115 } 116 case DisableReporting: 117 DPRINTF(PS2, "Disabling data reporting.\n"); 118 status.enabled = 0; 119 sendAck(); 120 return true; 121 case EnableReporting: 122 DPRINTF(PS2, "Enabling data reporting.\n"); 123 status.enabled = 1; 124 sendAck(); 125 return true; 126 case DefaultsAndDisable: 127 DPRINTF(PS2, "Disabling and resetting mouse.\n"); 128 sampleRate = 100; 129 resolution = 4; 130 status.twoToOne = 0; 131 status.enabled = 0; 132 sendAck(); 133 return true; 134 case Resend: 135 panic("Mouse resend unimplemented.\n"); 136 case Reset: 137 DPRINTF(PS2, "Resetting the mouse.\n"); 138 sampleRate = 100; 139 resolution = 4; 140 status.twoToOne = 0; 141 status.enabled = 0; 142 sendAck(); 143 send(&BatSuccessful, sizeof(BatSuccessful)); 144 send(ID, sizeof(ID)); 145 return true; 146 default: 147 warn("Unknown mouse command %#02x.\n", data[0]); 148 send(Resend); 149 return true; 150 } 151} 152 153void 154PS2Mouse::serialize(CheckpointOut &cp) const 155{ 156 PS2Device::serialize(cp); 157 158 SERIALIZE_SCALAR(status); 159 SERIALIZE_SCALAR(resolution); 160 SERIALIZE_SCALAR(sampleRate); 161} 162 163void 164PS2Mouse::unserialize(CheckpointIn &cp) 165{ 166 PS2Device::unserialize(cp); 167 168 UNSERIALIZE_SCALAR(status); 169 UNSERIALIZE_SCALAR(resolution); 170 UNSERIALIZE_SCALAR(sampleRate); 171} 172 173PS2Mouse * 174PS2MouseParams::create() 175{ 176 return new PS2Mouse(this); 177} 178