1/*
2 * Copyright (c) 2008 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#include "dev/x86/i8042.hh"
32
33#include "base/bitunion.hh"
34#include "debug/I8042.hh"
35#include "mem/packet.hh"
36#include "mem/packet_access.hh"
37
| 1/*
2 * Copyright (c) 2008 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#include "dev/x86/i8042.hh"
32
33#include "base/bitunion.hh"
34#include "debug/I8042.hh"
35#include "mem/packet.hh"
36#include "mem/packet_access.hh"
37
|
38// The 8042 has a whopping 32 bytes of internal RAM.
39const uint8_t RamSize = 32;
40const uint8_t NumOutputBits = 14;
41const uint8_t X86ISA::PS2Keyboard::ID[] = {0xab, 0x83};
42const uint8_t X86ISA::PS2Mouse::ID[] = {0x00};
43const uint8_t CommandAck = 0xfa;
44const uint8_t CommandNack = 0xfe;
45const uint8_t BatSuccessful = 0xaa;
46
47
48X86ISA::I8042::I8042(Params *p)
49 : BasicPioDevice(p, 0), // pioSize arg is dummy value... not used
50 latency(p->pio_latency),
51 dataPort(p->data_port), commandPort(p->command_port),
52 statusReg(0), commandByte(0), dataReg(0), lastCommand(NoCommand),
53 mouseIntPin(p->mouse_int_pin), keyboardIntPin(p->keyboard_int_pin)
54{
55 statusReg.passedSelfTest = 1;
56 statusReg.commandLast = 1;
57 statusReg.keyboardUnlocked = 1;
58
59 commandByte.convertScanCodes = 1;
60 commandByte.passedSelfTest = 1;
61 commandByte.keyboardFullInt = 1;
62}
63
64
65AddrRangeList
66X86ISA::I8042::getAddrRanges() const
67{
68 AddrRangeList ranges;
69 // TODO: Are these really supposed to be a single byte and not 4?
70 ranges.push_back(RangeSize(dataPort, 1));
71 ranges.push_back(RangeSize(commandPort, 1));
72 return ranges;
73}
74
75void
76X86ISA::I8042::writeData(uint8_t newData, bool mouse)
77{
78 DPRINTF(I8042, "Set data %#02x.\n", newData);
79 dataReg = newData;
80 statusReg.outputFull = 1;
81 statusReg.mouseOutputFull = (mouse ? 1 : 0);
82 if (!mouse && commandByte.keyboardFullInt) {
83 DPRINTF(I8042, "Sending keyboard interrupt.\n");
84 keyboardIntPin->raise();
85 //This is a hack
86 keyboardIntPin->lower();
87 } else if (mouse && commandByte.mouseFullInt) {
88 DPRINTF(I8042, "Sending mouse interrupt.\n");
89 mouseIntPin->raise();
90 //This is a hack
91 mouseIntPin->lower();
92 }
93}
94
95void
96X86ISA::PS2Device::serialize(const std::string &base, CheckpointOut &cp) const
97{
98 paramOut(cp, base + ".lastCommand", lastCommand);
99
100 std::vector<uint8_t> buffer(outBuffer.size());
101 std::copy(outBuffer.begin(), outBuffer.end(), buffer.begin());
102 arrayParamOut(cp, base + ".outBuffer.elts", buffer);
103}
104
105void
106X86ISA::PS2Device::unserialize(const std::string &base, CheckpointIn &cp)
107{
108 paramIn(cp, base + ".lastCommand", lastCommand);
109
110 std::vector<uint8_t> buffer;
111 arrayParamIn(cp, base + ".outBuffer.elts", buffer);
112 assert(outBuffer.empty());
113 for (auto c : buffer)
114 outBuffer.push_back(c);
115}
116
117
118void
119X86ISA::PS2Device::ack()
120{
121 bufferData(&CommandAck, sizeof(CommandAck));
122}
123
124void
125X86ISA::PS2Device::nack()
126{
127 bufferData(&CommandNack, sizeof(CommandNack));
128}
129
130void
131X86ISA::PS2Device::bufferData(const uint8_t *data, int size)
132{
133 assert(data || size == 0);
134 while (size) {
135 outBuffer.push_back(*(data++));
136 size--;
137 }
138}
139
140uint8_t
141X86ISA::I8042::readDataOut()
142{
143 uint8_t data = dataReg;
144 statusReg.outputFull = 0;
145 statusReg.mouseOutputFull = 0;
146 if (keyboard.hasData()) {
147 writeData(keyboard.getData(), false);
148 } else if (mouse.hasData()) {
149 writeData(mouse.getData(), true);
150 }
151 return data;
152}
153
154bool
155X86ISA::PS2Keyboard::processData(uint8_t data)
156{
157 if (lastCommand != NoCommand) {
158 switch (lastCommand) {
159 case LEDWrite:
160 DPRINTF(I8042, "Setting LEDs: "
161 "caps lock %s, num lock %s, scroll lock %s\n",
162 bits(data, 2) ? "on" : "off",
163 bits(data, 1) ? "on" : "off",
164 bits(data, 0) ? "on" : "off");
165 ack();
166 lastCommand = NoCommand;
167 break;
168 case TypematicInfo:
169 DPRINTF(I8042, "Setting typematic info to %#02x.\n", data);
170 ack();
171 lastCommand = NoCommand;
172 break;
173 }
174 return hasData();
175 }
176 switch (data) {
177 case LEDWrite:
178 DPRINTF(I8042, "Got LED write command.\n");
179 ack();
180 lastCommand = LEDWrite;
181 break;
182 case DiagnosticEcho:
183 panic("Keyboard diagnostic echo unimplemented.\n");
184 case AlternateScanCodes:
185 panic("Accessing alternate scan codes unimplemented.\n");
186 case ReadID:
187 DPRINTF(I8042, "Got keyboard read ID command.\n");
188 ack();
189 bufferData((uint8_t *)&ID, sizeof(ID));
190 break;
191 case TypematicInfo:
192 DPRINTF(I8042, "Setting typematic info.\n");
193 ack();
194 lastCommand = TypematicInfo;
195 break;
196 case Enable:
197 DPRINTF(I8042, "Enabling the keyboard.\n");
198 ack();
199 break;
200 case Disable:
201 DPRINTF(I8042, "Disabling the keyboard.\n");
202 ack();
203 break;
204 case DefaultsAndDisable:
205 DPRINTF(I8042, "Disabling and resetting the keyboard.\n");
206 ack();
207 break;
208 case AllKeysToTypematic:
209 panic("Setting all keys to typemantic unimplemented.\n");
210 case AllKeysToMakeRelease:
211 panic("Setting all keys to make/release unimplemented.\n");
212 case AllKeysToMake:
213 panic("Setting all keys to make unimplemented.\n");
214 case AllKeysToTypematicMakeRelease:
215 panic("Setting all keys to "
216 "typematic/make/release unimplemented.\n");
217 case KeyToTypematic:
218 panic("Setting a key to typematic unimplemented.\n");
219 case KeyToMakeRelease:
220 panic("Setting a key to make/release unimplemented.\n");
221 case KeyToMakeOnly:
222 panic("Setting key to make only unimplemented.\n");
223 case Resend:
224 panic("Keyboard resend unimplemented.\n");
225 case Reset:
226 panic("Keyboard reset unimplemented.\n");
227 default:
228 panic("Unknown keyboard command %#02x.\n", data);
229 }
230 return hasData();
231}
232
233bool
234X86ISA::PS2Mouse::processData(uint8_t data)
235{
236 if (lastCommand != NoCommand) {
237 switch(lastCommand) {
238 case SetResolution:
239 DPRINTF(I8042, "Mouse resolution set to %d.\n", data);
240 resolution = data;
241 ack();
242 lastCommand = NoCommand;
243 break;
244 case SampleRate:
245 DPRINTF(I8042, "Mouse sample rate %d samples "
246 "per second.\n", data);
247 sampleRate = data;
248 ack();
249 lastCommand = NoCommand;
250 break;
251 default:
252 panic("Not expecting data for a mouse command.\n");
253 }
254 return hasData();
255 }
256 switch (data) {
257 case Scale1to1:
258 DPRINTF(I8042, "Setting mouse scale to 1:1.\n");
259 status.twoToOne = 0;
260 ack();
261 break;
262 case Scale2to1:
263 DPRINTF(I8042, "Setting mouse scale to 2:1.\n");
264 status.twoToOne = 1;
265 ack();
266 break;
267 case SetResolution:
268 DPRINTF(I8042, "Setting mouse resolution.\n");
269 lastCommand = SetResolution;
270 ack();
271 break;
272 case GetStatus:
273 DPRINTF(I8042, "Getting mouse status.\n");
274 ack();
275 bufferData((uint8_t *)&(status), 1);
276 bufferData(&resolution, sizeof(resolution));
277 bufferData(&sampleRate, sizeof(sampleRate));
278 break;
279 case ReadData:
280 panic("Reading mouse data unimplemented.\n");
281 case ResetWrapMode:
282 panic("Resetting mouse wrap mode unimplemented.\n");
283 case WrapMode:
284 panic("Setting mouse wrap mode unimplemented.\n");
285 case RemoteMode:
286 panic("Setting mouse remote mode unimplemented.\n");
287 case ReadID:
288 DPRINTF(I8042, "Mouse ID requested.\n");
289 ack();
290 bufferData(ID, sizeof(ID));
291 break;
292 case SampleRate:
293 DPRINTF(I8042, "Setting mouse sample rate.\n");
294 lastCommand = SampleRate;
295 ack();
296 break;
297 case DisableReporting:
298 DPRINTF(I8042, "Disabling data reporting.\n");
299 status.enabled = 0;
300 ack();
301 break;
302 case EnableReporting:
303 DPRINTF(I8042, "Enabling data reporting.\n");
304 status.enabled = 1;
305 ack();
306 break;
307 case DefaultsAndDisable:
308 DPRINTF(I8042, "Disabling and resetting mouse.\n");
309 sampleRate = 100;
310 resolution = 4;
311 status.twoToOne = 0;
312 status.enabled = 0;
313 ack();
314 break;
315 case Resend:
316 panic("Mouse resend unimplemented.\n");
317 case Reset:
318 DPRINTF(I8042, "Resetting the mouse.\n");
319 sampleRate = 100;
320 resolution = 4;
321 status.twoToOne = 0;
322 status.enabled = 0;
323 ack();
324 bufferData(&BatSuccessful, sizeof(BatSuccessful));
325 bufferData(ID, sizeof(ID));
326 break;
327 default:
328 warn("Unknown mouse command %#02x.\n", data);
329 nack();
330 break;
331 }
332 return hasData();
333}
334
335
336Tick
337X86ISA::I8042::read(PacketPtr pkt)
338{
339 assert(pkt->getSize() == 1);
340 Addr addr = pkt->getAddr();
341 if (addr == dataPort) {
342 uint8_t data = readDataOut();
343 //DPRINTF(I8042, "Read from data port got %#02x.\n", data);
344 pkt->set<uint8_t>(data);
345 } else if (addr == commandPort) {
346 //DPRINTF(I8042, "Read status as %#02x.\n", (uint8_t)statusReg);
347 pkt->set<uint8_t>((uint8_t)statusReg);
348 } else {
349 panic("Read from unrecognized port %#x.\n", addr);
350 }
351 pkt->makeAtomicResponse();
352 return latency;
353}
354
355Tick
356X86ISA::I8042::write(PacketPtr pkt)
357{
358 assert(pkt->getSize() == 1);
359 Addr addr = pkt->getAddr();
360 uint8_t data = pkt->get<uint8_t>();
361 if (addr == dataPort) {
362 statusReg.commandLast = 0;
363 switch (lastCommand) {
364 case NoCommand:
365 if (keyboard.processData(data)) {
366 writeData(keyboard.getData(), false);
367 }
368 break;
369 case WriteToMouse:
370 if (mouse.processData(data)) {
371 writeData(mouse.getData(), true);
372 }
373 break;
374 case WriteCommandByte:
375 commandByte = data;
376 DPRINTF(I8042, "Got data %#02x for \"Write "
377 "command byte\" command.\n", data);
378 statusReg.passedSelfTest = (uint8_t)commandByte.passedSelfTest;
379 break;
380 case WriteMouseOutputBuff:
381 DPRINTF(I8042, "Got data %#02x for \"Write "
382 "mouse output buffer\" command.\n", data);
383 writeData(data, true);
384 break;
| 43// The 8042 has a whopping 32 bytes of internal RAM.
44const uint8_t RamSize = 32;
45const uint8_t NumOutputBits = 14;
46const uint8_t X86ISA::PS2Keyboard::ID[] = {0xab, 0x83};
47const uint8_t X86ISA::PS2Mouse::ID[] = {0x00};
48const uint8_t CommandAck = 0xfa;
49const uint8_t CommandNack = 0xfe;
50const uint8_t BatSuccessful = 0xaa;
51
52
53X86ISA::I8042::I8042(Params *p)
54 : BasicPioDevice(p, 0), // pioSize arg is dummy value... not used
55 latency(p->pio_latency),
56 dataPort(p->data_port), commandPort(p->command_port),
57 statusReg(0), commandByte(0), dataReg(0), lastCommand(NoCommand),
58 mouseIntPin(p->mouse_int_pin), keyboardIntPin(p->keyboard_int_pin)
59{
60 statusReg.passedSelfTest = 1;
61 statusReg.commandLast = 1;
62 statusReg.keyboardUnlocked = 1;
63
64 commandByte.convertScanCodes = 1;
65 commandByte.passedSelfTest = 1;
66 commandByte.keyboardFullInt = 1;
67}
68
69
70AddrRangeList
71X86ISA::I8042::getAddrRanges() const
72{
73 AddrRangeList ranges;
74 // TODO: Are these really supposed to be a single byte and not 4?
75 ranges.push_back(RangeSize(dataPort, 1));
76 ranges.push_back(RangeSize(commandPort, 1));
77 return ranges;
78}
79
80void
81X86ISA::I8042::writeData(uint8_t newData, bool mouse)
82{
83 DPRINTF(I8042, "Set data %#02x.\n", newData);
84 dataReg = newData;
85 statusReg.outputFull = 1;
86 statusReg.mouseOutputFull = (mouse ? 1 : 0);
87 if (!mouse && commandByte.keyboardFullInt) {
88 DPRINTF(I8042, "Sending keyboard interrupt.\n");
89 keyboardIntPin->raise();
90 //This is a hack
91 keyboardIntPin->lower();
92 } else if (mouse && commandByte.mouseFullInt) {
93 DPRINTF(I8042, "Sending mouse interrupt.\n");
94 mouseIntPin->raise();
95 //This is a hack
96 mouseIntPin->lower();
97 }
98}
99
100void
101X86ISA::PS2Device::serialize(const std::string &base, CheckpointOut &cp) const
102{
103 paramOut(cp, base + ".lastCommand", lastCommand);
104
105 std::vector<uint8_t> buffer(outBuffer.size());
106 std::copy(outBuffer.begin(), outBuffer.end(), buffer.begin());
107 arrayParamOut(cp, base + ".outBuffer.elts", buffer);
108}
109
110void
111X86ISA::PS2Device::unserialize(const std::string &base, CheckpointIn &cp)
112{
113 paramIn(cp, base + ".lastCommand", lastCommand);
114
115 std::vector<uint8_t> buffer;
116 arrayParamIn(cp, base + ".outBuffer.elts", buffer);
117 assert(outBuffer.empty());
118 for (auto c : buffer)
119 outBuffer.push_back(c);
120}
121
122
123void
124X86ISA::PS2Device::ack()
125{
126 bufferData(&CommandAck, sizeof(CommandAck));
127}
128
129void
130X86ISA::PS2Device::nack()
131{
132 bufferData(&CommandNack, sizeof(CommandNack));
133}
134
135void
136X86ISA::PS2Device::bufferData(const uint8_t *data, int size)
137{
138 assert(data || size == 0);
139 while (size) {
140 outBuffer.push_back(*(data++));
141 size--;
142 }
143}
144
145uint8_t
146X86ISA::I8042::readDataOut()
147{
148 uint8_t data = dataReg;
149 statusReg.outputFull = 0;
150 statusReg.mouseOutputFull = 0;
151 if (keyboard.hasData()) {
152 writeData(keyboard.getData(), false);
153 } else if (mouse.hasData()) {
154 writeData(mouse.getData(), true);
155 }
156 return data;
157}
158
159bool
160X86ISA::PS2Keyboard::processData(uint8_t data)
161{
162 if (lastCommand != NoCommand) {
163 switch (lastCommand) {
164 case LEDWrite:
165 DPRINTF(I8042, "Setting LEDs: "
166 "caps lock %s, num lock %s, scroll lock %s\n",
167 bits(data, 2) ? "on" : "off",
168 bits(data, 1) ? "on" : "off",
169 bits(data, 0) ? "on" : "off");
170 ack();
171 lastCommand = NoCommand;
172 break;
173 case TypematicInfo:
174 DPRINTF(I8042, "Setting typematic info to %#02x.\n", data);
175 ack();
176 lastCommand = NoCommand;
177 break;
178 }
179 return hasData();
180 }
181 switch (data) {
182 case LEDWrite:
183 DPRINTF(I8042, "Got LED write command.\n");
184 ack();
185 lastCommand = LEDWrite;
186 break;
187 case DiagnosticEcho:
188 panic("Keyboard diagnostic echo unimplemented.\n");
189 case AlternateScanCodes:
190 panic("Accessing alternate scan codes unimplemented.\n");
191 case ReadID:
192 DPRINTF(I8042, "Got keyboard read ID command.\n");
193 ack();
194 bufferData((uint8_t *)&ID, sizeof(ID));
195 break;
196 case TypematicInfo:
197 DPRINTF(I8042, "Setting typematic info.\n");
198 ack();
199 lastCommand = TypematicInfo;
200 break;
201 case Enable:
202 DPRINTF(I8042, "Enabling the keyboard.\n");
203 ack();
204 break;
205 case Disable:
206 DPRINTF(I8042, "Disabling the keyboard.\n");
207 ack();
208 break;
209 case DefaultsAndDisable:
210 DPRINTF(I8042, "Disabling and resetting the keyboard.\n");
211 ack();
212 break;
213 case AllKeysToTypematic:
214 panic("Setting all keys to typemantic unimplemented.\n");
215 case AllKeysToMakeRelease:
216 panic("Setting all keys to make/release unimplemented.\n");
217 case AllKeysToMake:
218 panic("Setting all keys to make unimplemented.\n");
219 case AllKeysToTypematicMakeRelease:
220 panic("Setting all keys to "
221 "typematic/make/release unimplemented.\n");
222 case KeyToTypematic:
223 panic("Setting a key to typematic unimplemented.\n");
224 case KeyToMakeRelease:
225 panic("Setting a key to make/release unimplemented.\n");
226 case KeyToMakeOnly:
227 panic("Setting key to make only unimplemented.\n");
228 case Resend:
229 panic("Keyboard resend unimplemented.\n");
230 case Reset:
231 panic("Keyboard reset unimplemented.\n");
232 default:
233 panic("Unknown keyboard command %#02x.\n", data);
234 }
235 return hasData();
236}
237
238bool
239X86ISA::PS2Mouse::processData(uint8_t data)
240{
241 if (lastCommand != NoCommand) {
242 switch(lastCommand) {
243 case SetResolution:
244 DPRINTF(I8042, "Mouse resolution set to %d.\n", data);
245 resolution = data;
246 ack();
247 lastCommand = NoCommand;
248 break;
249 case SampleRate:
250 DPRINTF(I8042, "Mouse sample rate %d samples "
251 "per second.\n", data);
252 sampleRate = data;
253 ack();
254 lastCommand = NoCommand;
255 break;
256 default:
257 panic("Not expecting data for a mouse command.\n");
258 }
259 return hasData();
260 }
261 switch (data) {
262 case Scale1to1:
263 DPRINTF(I8042, "Setting mouse scale to 1:1.\n");
264 status.twoToOne = 0;
265 ack();
266 break;
267 case Scale2to1:
268 DPRINTF(I8042, "Setting mouse scale to 2:1.\n");
269 status.twoToOne = 1;
270 ack();
271 break;
272 case SetResolution:
273 DPRINTF(I8042, "Setting mouse resolution.\n");
274 lastCommand = SetResolution;
275 ack();
276 break;
277 case GetStatus:
278 DPRINTF(I8042, "Getting mouse status.\n");
279 ack();
280 bufferData((uint8_t *)&(status), 1);
281 bufferData(&resolution, sizeof(resolution));
282 bufferData(&sampleRate, sizeof(sampleRate));
283 break;
284 case ReadData:
285 panic("Reading mouse data unimplemented.\n");
286 case ResetWrapMode:
287 panic("Resetting mouse wrap mode unimplemented.\n");
288 case WrapMode:
289 panic("Setting mouse wrap mode unimplemented.\n");
290 case RemoteMode:
291 panic("Setting mouse remote mode unimplemented.\n");
292 case ReadID:
293 DPRINTF(I8042, "Mouse ID requested.\n");
294 ack();
295 bufferData(ID, sizeof(ID));
296 break;
297 case SampleRate:
298 DPRINTF(I8042, "Setting mouse sample rate.\n");
299 lastCommand = SampleRate;
300 ack();
301 break;
302 case DisableReporting:
303 DPRINTF(I8042, "Disabling data reporting.\n");
304 status.enabled = 0;
305 ack();
306 break;
307 case EnableReporting:
308 DPRINTF(I8042, "Enabling data reporting.\n");
309 status.enabled = 1;
310 ack();
311 break;
312 case DefaultsAndDisable:
313 DPRINTF(I8042, "Disabling and resetting mouse.\n");
314 sampleRate = 100;
315 resolution = 4;
316 status.twoToOne = 0;
317 status.enabled = 0;
318 ack();
319 break;
320 case Resend:
321 panic("Mouse resend unimplemented.\n");
322 case Reset:
323 DPRINTF(I8042, "Resetting the mouse.\n");
324 sampleRate = 100;
325 resolution = 4;
326 status.twoToOne = 0;
327 status.enabled = 0;
328 ack();
329 bufferData(&BatSuccessful, sizeof(BatSuccessful));
330 bufferData(ID, sizeof(ID));
331 break;
332 default:
333 warn("Unknown mouse command %#02x.\n", data);
334 nack();
335 break;
336 }
337 return hasData();
338}
339
340
341Tick
342X86ISA::I8042::read(PacketPtr pkt)
343{
344 assert(pkt->getSize() == 1);
345 Addr addr = pkt->getAddr();
346 if (addr == dataPort) {
347 uint8_t data = readDataOut();
348 //DPRINTF(I8042, "Read from data port got %#02x.\n", data);
349 pkt->set<uint8_t>(data);
350 } else if (addr == commandPort) {
351 //DPRINTF(I8042, "Read status as %#02x.\n", (uint8_t)statusReg);
352 pkt->set<uint8_t>((uint8_t)statusReg);
353 } else {
354 panic("Read from unrecognized port %#x.\n", addr);
355 }
356 pkt->makeAtomicResponse();
357 return latency;
358}
359
360Tick
361X86ISA::I8042::write(PacketPtr pkt)
362{
363 assert(pkt->getSize() == 1);
364 Addr addr = pkt->getAddr();
365 uint8_t data = pkt->get<uint8_t>();
366 if (addr == dataPort) {
367 statusReg.commandLast = 0;
368 switch (lastCommand) {
369 case NoCommand:
370 if (keyboard.processData(data)) {
371 writeData(keyboard.getData(), false);
372 }
373 break;
374 case WriteToMouse:
375 if (mouse.processData(data)) {
376 writeData(mouse.getData(), true);
377 }
378 break;
379 case WriteCommandByte:
380 commandByte = data;
381 DPRINTF(I8042, "Got data %#02x for \"Write "
382 "command byte\" command.\n", data);
383 statusReg.passedSelfTest = (uint8_t)commandByte.passedSelfTest;
384 break;
385 case WriteMouseOutputBuff:
386 DPRINTF(I8042, "Got data %#02x for \"Write "
387 "mouse output buffer\" command.\n", data);
388 writeData(data, true);
389 break;
|
462 lastCommand = WriteKeyboardOutputBuff;
463 break;
464 case WriteMouseOutputBuff:
465 DPRINTF(I8042, "Got command to write to mouse output buffer.\n");
466 lastCommand = WriteMouseOutputBuff;
467 break;
468 case WriteToMouse:
469 DPRINTF(I8042, "Expecting mouse command.\n");
470 lastCommand = WriteToMouse;
471 break;
472 case DisableA20:
473 panic("i8042 \"Disable A20\" command not implemented.\n");
474 case EnableA20:
475 panic("i8042 \"Enable A20\" command not implemented.\n");
476 case ReadTestInputs:
477 panic("i8042 \"Read test inputs\" command not implemented.\n");
478 case SystemReset:
479 panic("i8042 \"System reset\" command not implemented.\n");
480 default:
481 warn("Write to unknown i8042 "
482 "(keyboard controller) command port.\n");
483 }
484 } else {
485 panic("Write to unrecognized port %#x.\n", addr);
486 }
487 pkt->makeAtomicResponse();
488 return latency;
489}
490
491void
492X86ISA::I8042::serialize(CheckpointOut &cp) const
493{
494 SERIALIZE_SCALAR(dataPort);
495 SERIALIZE_SCALAR(commandPort);
496 SERIALIZE_SCALAR(statusReg);
497 SERIALIZE_SCALAR(commandByte);
498 SERIALIZE_SCALAR(dataReg);
499 SERIALIZE_SCALAR(lastCommand);
500 mouse.serialize("mouse", cp);
501 keyboard.serialize("keyboard", cp);
502}
503
504void
505X86ISA::I8042::unserialize(CheckpointIn &cp)
506{
507 UNSERIALIZE_SCALAR(dataPort);
508 UNSERIALIZE_SCALAR(commandPort);
509 UNSERIALIZE_SCALAR(statusReg);
510 UNSERIALIZE_SCALAR(commandByte);
511 UNSERIALIZE_SCALAR(dataReg);
512 UNSERIALIZE_SCALAR(lastCommand);
513 mouse.unserialize("mouse", cp);
514 keyboard.unserialize("keyboard", cp);
515}
516
517void
518X86ISA::PS2Mouse::serialize(const std::string &base, CheckpointOut &cp) const
519{
520 PS2Device::serialize(base, cp);
521
522 paramOut(cp, base + ".status", status);
523 paramOut(cp, base + ".resolution", resolution);
524 paramOut(cp, base + ".sampleRate", sampleRate);
525}
526
527void
528X86ISA::PS2Mouse::unserialize(const std::string &base, CheckpointIn &cp)
529{
530 PS2Device::unserialize(base, cp);
531
532 paramIn(cp, base + ".status", status);
533 paramIn(cp, base + ".resolution", resolution);
534 paramIn(cp, base + ".sampleRate", sampleRate);
535}
536
537X86ISA::I8042 *
538I8042Params::create()
539{
540 return new X86ISA::I8042(this);
541}
| 475 lastCommand = WriteKeyboardOutputBuff;
476 break;
477 case WriteMouseOutputBuff:
478 DPRINTF(I8042, "Got command to write to mouse output buffer.\n");
479 lastCommand = WriteMouseOutputBuff;
480 break;
481 case WriteToMouse:
482 DPRINTF(I8042, "Expecting mouse command.\n");
483 lastCommand = WriteToMouse;
484 break;
485 case DisableA20:
486 panic("i8042 \"Disable A20\" command not implemented.\n");
487 case EnableA20:
488 panic("i8042 \"Enable A20\" command not implemented.\n");
489 case ReadTestInputs:
490 panic("i8042 \"Read test inputs\" command not implemented.\n");
491 case SystemReset:
492 panic("i8042 \"System reset\" command not implemented.\n");
493 default:
494 warn("Write to unknown i8042 "
495 "(keyboard controller) command port.\n");
496 }
497 } else {
498 panic("Write to unrecognized port %#x.\n", addr);
499 }
500 pkt->makeAtomicResponse();
501 return latency;
502}
503
504void
505X86ISA::I8042::serialize(CheckpointOut &cp) const
506{
507 SERIALIZE_SCALAR(dataPort);
508 SERIALIZE_SCALAR(commandPort);
509 SERIALIZE_SCALAR(statusReg);
510 SERIALIZE_SCALAR(commandByte);
511 SERIALIZE_SCALAR(dataReg);
512 SERIALIZE_SCALAR(lastCommand);
513 mouse.serialize("mouse", cp);
514 keyboard.serialize("keyboard", cp);
515}
516
517void
518X86ISA::I8042::unserialize(CheckpointIn &cp)
519{
520 UNSERIALIZE_SCALAR(dataPort);
521 UNSERIALIZE_SCALAR(commandPort);
522 UNSERIALIZE_SCALAR(statusReg);
523 UNSERIALIZE_SCALAR(commandByte);
524 UNSERIALIZE_SCALAR(dataReg);
525 UNSERIALIZE_SCALAR(lastCommand);
526 mouse.unserialize("mouse", cp);
527 keyboard.unserialize("keyboard", cp);
528}
529
530void
531X86ISA::PS2Mouse::serialize(const std::string &base, CheckpointOut &cp) const
532{
533 PS2Device::serialize(base, cp);
534
535 paramOut(cp, base + ".status", status);
536 paramOut(cp, base + ".resolution", resolution);
537 paramOut(cp, base + ".sampleRate", sampleRate);
538}
539
540void
541X86ISA::PS2Mouse::unserialize(const std::string &base, CheckpointIn &cp)
542{
543 PS2Device::unserialize(base, cp);
544
545 paramIn(cp, base + ".status", status);
546 paramIn(cp, base + ".resolution", resolution);
547 paramIn(cp, base + ".sampleRate", sampleRate);
548}
549
550X86ISA::I8042 *
551I8042Params::create()
552{
553 return new X86ISA::I8042(this);
554}
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