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/keyboard.hh" 45 46#include "base/logging.hh" 47#include "debug/PS2.hh"
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48#include "dev/ps2.hh"
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48#include "dev/ps2/types.hh" |
49#include "params/PS2Keyboard.hh" 50
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51const uint8_t PS2Keyboard::ID[] = {0xab, 0x83};
52
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51PS2Keyboard::PS2Keyboard(const PS2KeyboardParams *p) 52 : PS2Device(p), 53 shiftDown(false), 54 enabled(false) 55{ 56 if (p->vnc) 57 p->vnc->setKeyboard(this); 58} 59 60void 61PS2Keyboard::serialize(CheckpointOut &cp) const 62{ 63 PS2Device::serialize(cp); 64 SERIALIZE_SCALAR(shiftDown); 65 SERIALIZE_SCALAR(enabled); 66} 67 68void 69PS2Keyboard::unserialize(CheckpointIn &cp) 70{ 71 PS2Device::unserialize(cp); 72 UNSERIALIZE_SCALAR(shiftDown); 73 UNSERIALIZE_SCALAR(enabled); 74} 75 76bool 77PS2Keyboard::recv(const std::vector<uint8_t> &data) 78{ 79 switch (data[0]) {
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82 case LEDWrite:
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80 case Ps2::ReadID: 81 DPRINTF(PS2, "Got keyboard read ID command.\n"); 82 sendAck(); 83 send(Ps2::Keyboard::ID); 84 return true; 85 case Ps2::Enable: 86 DPRINTF(PS2, "Enabling the keyboard.\n"); 87 enabled = true; 88 sendAck(); 89 return true; 90 case Ps2::Disable: 91 DPRINTF(PS2, "Disabling the keyboard.\n"); 92 enabled = false; 93 sendAck(); 94 return true; 95 case Ps2::DefaultsAndDisable: 96 DPRINTF(PS2, "Disabling and resetting the keyboard.\n"); 97 enabled = false; 98 sendAck(); 99 return true; 100 case Ps2::Reset: 101 DPRINTF(PS2, "Resetting keyboard.\n"); 102 enabled = true; 103 sendAck(); 104 send(Ps2::SelfTestPass); 105 return true; 106 case Ps2::Resend: 107 panic("Keyboard resend unimplemented.\n"); 108 109 case Ps2::Keyboard::LEDWrite: |
110 if (data.size() == 1) { 111 DPRINTF(PS2, "Got LED write command.\n"); 112 sendAck(); 113 return false; 114 } else { 115 DPRINTF(PS2, "Setting LEDs: " 116 "caps lock %s, num lock %s, scroll lock %s\n", 117 bits(data[1], 2) ? "on" : "off", 118 bits(data[1], 1) ? "on" : "off", 119 bits(data[1], 0) ? "on" : "off"); 120 sendAck(); 121 return true; 122 }
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96 case DiagnosticEcho:
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123 case Ps2::Keyboard::DiagnosticEcho: |
124 panic("Keyboard diagnostic echo unimplemented.\n");
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98 case AlternateScanCodes:
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125 case Ps2::Keyboard::AlternateScanCodes: |
126 panic("Accessing alternate scan codes unimplemented.\n");
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100 case ReadID:
101 DPRINTF(PS2, "Got keyboard read ID command.\n");
102 sendAck();
103 send((uint8_t *)&ID, sizeof(ID));
104 return true;
105 case TypematicInfo:
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127 case Ps2::Keyboard::TypematicInfo: |
128 if (data.size() == 1) { 129 DPRINTF(PS2, "Setting typematic info.\n"); 130 sendAck(); 131 return false; 132 } else { 133 DPRINTF(PS2, "Setting typematic info to %#02x.\n", data[1]); 134 sendAck(); 135 return true; 136 }
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115 case Enable:
116 DPRINTF(PS2, "Enabling the keyboard.\n");
117 enabled = true;
118 sendAck();
119 return true;
120 case Disable:
121 DPRINTF(PS2, "Disabling the keyboard.\n");
122 enabled = false;
123 sendAck();
124 return true;
125 case DefaultsAndDisable:
126 DPRINTF(PS2, "Disabling and resetting the keyboard.\n");
127 enabled = false;
128 sendAck();
129 return true;
130 case Reset:
131 DPRINTF(PS2, "Resetting keyboard.\n");
132 sendAck();
133 enabled = true;
134 send(Ps2::SelfTestPass);
135 return true;
136 case AllKeysToTypematic:
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137 case Ps2::Keyboard::AllKeysToTypematic: |
138 panic("Setting all keys to typemantic unimplemented.\n");
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138 case AllKeysToMakeRelease:
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139 case Ps2::Keyboard::AllKeysToMakeRelease: |
140 panic("Setting all keys to make/release unimplemented.\n");
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140 case AllKeysToMake:
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141 case Ps2::Keyboard::AllKeysToMake: |
142 panic("Setting all keys to make unimplemented.\n");
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142 case AllKeysToTypematicMakeRelease:
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143 case Ps2::Keyboard::AllKeysToTypematicMakeRelease: |
144 panic("Setting all keys to " 145 "typematic/make/release unimplemented.\n");
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145 case KeyToTypematic:
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146 case Ps2::Keyboard::KeyToTypematic: |
147 panic("Setting a key to typematic unimplemented.\n");
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147 case KeyToMakeRelease:
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148 case Ps2::Keyboard::KeyToMakeRelease: |
149 panic("Setting a key to make/release unimplemented.\n");
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149 case KeyToMakeOnly:
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150 case Ps2::Keyboard::KeyToMakeOnly: |
151 panic("Setting key to make only unimplemented.\n");
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151 case Resend:
152 panic("Keyboard resend unimplemented.\n");
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152 default: 153 panic("Unknown keyboard command %#02x.\n", data[0]); 154 } 155} 156 157void 158PS2Keyboard::keyPress(uint32_t key, bool down) 159{ 160 std::list<uint8_t> keys; 161 162 // convert the X11 keysym into ps2 codes and update the shift 163 // state (shiftDown) 164 Ps2::keySymToPs2(key, down, shiftDown, keys); 165 166 // Drop key presses if the keyboard hasn't been enabled by the 167 // host. We do that after translating the key code to ensure that 168 // we keep track of the shift state. 169 if (!enabled) 170 return; 171 172 // Insert into our queue of characters 173 for (uint8_t c : keys) 174 send(c); 175} 176 177 178PS2Keyboard * 179PS2KeyboardParams::create() 180{ 181 return new PS2Keyboard(this); 182}
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