32#include "dev/x86/i8042.hh"
33#include "mem/packet.hh"
34#include "mem/packet_access.hh"
35
36// The 8042 has a whopping 32 bytes of internal RAM.
37const uint8_t RamSize = 32;
38const uint8_t NumOutputBits = 14;
39const uint8_t X86ISA::PS2Keyboard::ID[] = {0xab, 0x83};
40const uint8_t X86ISA::PS2Mouse::ID[] = {0x00};
41const uint8_t CommandAck = 0xfa;
42const uint8_t CommandNack = 0xfe;
43const uint8_t BatSuccessful = 0xaa;
44
45void
46X86ISA::I8042::addressRanges(AddrRangeList &range_list)
47{
48 range_list.clear();
49 range_list.push_back(RangeSize(dataPort, 1));
50 range_list.push_back(RangeSize(commandPort, 1));
51}
52
53void
54X86ISA::I8042::writeData(uint8_t newData, bool mouse)
55{
56 DPRINTF(I8042, "Set data %#02x.\n", newData);
57 dataReg = newData;
58 statusReg.outputFull = 1;
59 statusReg.mouseOutputFull = (mouse ? 1 : 0);
60 if (!mouse && commandByte.keyboardFullInt) {
61 DPRINTF(I8042, "Sending keyboard interrupt.\n");
62 keyboardIntPin->raise();
63 //This is a hack
64 keyboardIntPin->lower();
65 } else if (mouse && commandByte.mouseFullInt) {
66 DPRINTF(I8042, "Sending mouse interrupt.\n");
67 mouseIntPin->raise();
68 //This is a hack
69 mouseIntPin->lower();
70 }
71}
72
73void
74X86ISA::PS2Device::ack()
75{
76 bufferData(&CommandAck, sizeof(CommandAck));
77}
78
79void
80X86ISA::PS2Device::nack()
81{
82 bufferData(&CommandNack, sizeof(CommandNack));
83}
84
85void
86X86ISA::PS2Device::bufferData(const uint8_t *data, int size)
87{
88 assert(data || size == 0);
89 while (size) {
90 outBuffer.push(*(data++));
91 size--;
92 }
93}
94
95uint8_t
96X86ISA::I8042::readDataOut()
97{
98 uint8_t data = dataReg;
99 statusReg.outputFull = 0;
100 statusReg.mouseOutputFull = 0;
101 if (keyboard.hasData()) {
102 writeData(keyboard.getData(), false);
103 } else if (mouse.hasData()) {
104 writeData(mouse.getData(), true);
105 }
106 return data;
107}
108
109bool
110X86ISA::PS2Keyboard::processData(uint8_t data)
111{
112 if (lastCommand != NoCommand) {
113 switch (lastCommand) {
114 case LEDWrite:
115 DPRINTF(I8042, "Setting LEDs: "
116 "caps lock %s, num lock %s, scroll lock %s\n",
117 bits(data, 2) ? "on" : "off",
118 bits(data, 1) ? "on" : "off",
119 bits(data, 0) ? "on" : "off");
120 ack();
121 lastCommand = NoCommand;
122 break;
123 case TypematicInfo:
124 DPRINTF(I8042, "Setting typematic info to %#02x.\n", data);
125 ack();
126 lastCommand = NoCommand;
127 break;
128 }
129 return hasData();
130 }
131 switch (data) {
132 case LEDWrite:
133 DPRINTF(I8042, "Got LED write command.\n");
134 ack();
135 lastCommand = LEDWrite;
136 break;
137 case DiagnosticEcho:
138 panic("Keyboard diagnostic echo unimplemented.\n");
139 case AlternateScanCodes:
140 panic("Accessing alternate scan codes unimplemented.\n");
141 case ReadID:
142 DPRINTF(I8042, "Got keyboard read ID command.\n");
143 ack();
144 bufferData((uint8_t *)&ID, sizeof(ID));
145 break;
146 case TypematicInfo:
147 DPRINTF(I8042, "Setting typematic info.\n");
148 ack();
149 lastCommand = TypematicInfo;
150 break;
151 case Enable:
152 DPRINTF(I8042, "Enabling the keyboard.\n");
153 ack();
154 break;
155 case Disable:
156 DPRINTF(I8042, "Disabling the keyboard.\n");
157 ack();
158 break;
159 case DefaultsAndDisable:
160 DPRINTF(I8042, "Disabling and resetting the keyboard.\n");
161 ack();
162 break;
163 case AllKeysToTypematic:
164 panic("Setting all keys to typemantic unimplemented.\n");
165 case AllKeysToMakeRelease:
166 panic("Setting all keys to make/release unimplemented.\n");
167 case AllKeysToMake:
168 panic("Setting all keys to make unimplemented.\n");
169 case AllKeysToTypematicMakeRelease:
170 panic("Setting all keys to "
171 "typematic/make/release unimplemented.\n");
172 case KeyToTypematic:
173 panic("Setting a key to typematic unimplemented.\n");
174 case KeyToMakeRelease:
175 panic("Setting a key to make/release unimplemented.\n");
176 case KeyToMakeOnly:
177 panic("Setting key to make only unimplemented.\n");
178 case Resend:
179 panic("Keyboard resend unimplemented.\n");
180 case Reset:
181 panic("Keyboard reset unimplemented.\n");
182 default:
183 panic("Unknown keyboard command %#02x.\n", data);
184 }
185 return hasData();
186}
187
188bool
189X86ISA::PS2Mouse::processData(uint8_t data)
190{
191 if (lastCommand != NoCommand) {
192 switch(lastCommand) {
193 case SetResolution:
194 DPRINTF(I8042, "Mouse resolution set to %d.\n", data);
195 resolution = data;
196 ack();
197 lastCommand = NoCommand;
198 break;
199 case SampleRate:
200 DPRINTF(I8042, "Mouse sample rate %d samples "
201 "per second.\n", data);
202 sampleRate = data;
203 ack();
204 lastCommand = NoCommand;
205 break;
206 default:
207 panic("Not expecting data for a mouse command.\n");
208 }
209 return hasData();
210 }
211 switch (data) {
212 case Scale1to1:
213 DPRINTF(I8042, "Setting mouse scale to 1:1.\n");
214 status.twoToOne = 0;
215 ack();
216 break;
217 case Scale2to1:
218 DPRINTF(I8042, "Setting mouse scale to 2:1.\n");
219 status.twoToOne = 1;
220 ack();
221 break;
222 case SetResolution:
223 DPRINTF(I8042, "Setting mouse resolution.\n");
224 lastCommand = SetResolution;
225 ack();
226 break;
227 case GetStatus:
228 DPRINTF(I8042, "Getting mouse status.\n");
229 ack();
230 bufferData((uint8_t *)&(status), 1);
231 bufferData(&resolution, sizeof(resolution));
232 bufferData(&sampleRate, sizeof(sampleRate));
233 break;
234 case ReadData:
235 panic("Reading mouse data unimplemented.\n");
236 case ResetWrapMode:
237 panic("Resetting mouse wrap mode unimplemented.\n");
238 case WrapMode:
239 panic("Setting mouse wrap mode unimplemented.\n");
240 case RemoteMode:
241 panic("Setting mouse remote mode unimplemented.\n");
242 case ReadID:
243 DPRINTF(I8042, "Mouse ID requested.\n");
244 ack();
245 bufferData(ID, sizeof(ID));
246 break;
247 case SampleRate:
248 DPRINTF(I8042, "Setting mouse sample rate.\n");
249 lastCommand = SampleRate;
250 ack();
251 break;
252 case DisableReporting:
253 DPRINTF(I8042, "Disabling data reporting.\n");
254 status.enabled = 0;
255 ack();
256 break;
257 case EnableReporting:
258 DPRINTF(I8042, "Enabling data reporting.\n");
259 status.enabled = 1;
260 ack();
261 break;
262 case DefaultsAndDisable:
263 DPRINTF(I8042, "Disabling and resetting mouse.\n");
264 sampleRate = 100;
265 resolution = 4;
266 status.twoToOne = 0;
267 status.enabled = 0;
268 ack();
269 break;
270 case Resend:
271 panic("Mouse resend unimplemented.\n");
272 case Reset:
273 DPRINTF(I8042, "Resetting the mouse.\n");
274 sampleRate = 100;
275 resolution = 4;
276 status.twoToOne = 0;
277 status.enabled = 0;
278 ack();
279 bufferData(&BatSuccessful, sizeof(BatSuccessful));
280 bufferData(ID, sizeof(ID));
281 break;
282 default:
283 warn("Unknown mouse command %#02x.\n", data);
284 nack();
285 break;
286 }
287 return hasData();
288}
289
290
291Tick
292X86ISA::I8042::read(PacketPtr pkt)
293{
294 assert(pkt->getSize() == 1);
295 Addr addr = pkt->getAddr();
296 if (addr == dataPort) {
297 uint8_t data = readDataOut();
298 //DPRINTF(I8042, "Read from data port got %#02x.\n", data);
299 pkt->set<uint8_t>(data);
300 } else if (addr == commandPort) {
301 //DPRINTF(I8042, "Read status as %#02x.\n", (uint8_t)statusReg);
302 pkt->set<uint8_t>((uint8_t)statusReg);
303 } else {
304 panic("Read from unrecognized port %#x.\n", addr);
305 }
306 pkt->makeAtomicResponse();
307 return latency;
308}
309
310Tick
311X86ISA::I8042::write(PacketPtr pkt)
312{
313 assert(pkt->getSize() == 1);
314 Addr addr = pkt->getAddr();
315 uint8_t data = pkt->get<uint8_t>();
316 if (addr == dataPort) {
317 statusReg.commandLast = 0;
318 switch (lastCommand) {
319 case NoCommand:
320 if (keyboard.processData(data)) {
321 writeData(keyboard.getData(), false);
322 }
323 break;
324 case WriteToMouse:
325 if (mouse.processData(data)) {
326 writeData(mouse.getData(), true);
327 }
328 break;
329 case WriteCommandByte:
330 commandByte = data;
331 DPRINTF(I8042, "Got data %#02x for \"Write "
332 "command byte\" command.\n", data);
333 statusReg.passedSelfTest = (uint8_t)commandByte.passedSelfTest;
334 break;
335 case WriteMouseOutputBuff:
336 DPRINTF(I8042, "Got data %#02x for \"Write "
337 "mouse output buffer\" command.\n", data);
338 writeData(data, true);
339 break;
340 default:
341 panic("Data written for unrecognized "
342 "command %#02x\n", lastCommand);
343 }
344 lastCommand = NoCommand;
345 } else if (addr == commandPort) {
346 DPRINTF(I8042, "Got command %#02x.\n", data);
347 statusReg.commandLast = 1;
348 // These purposefully leave off the first byte of the controller RAM
349 // so it can be handled specially.
350 if (data > ReadControllerRamBase &&
351 data < ReadControllerRamBase + RamSize) {
352 panic("Attempted to use i8042 read controller RAM command to "
353 "get byte %d.\n", data - ReadControllerRamBase);
354 } else if (data > WriteControllerRamBase &&
355 data < WriteControllerRamBase + RamSize) {
356 panic("Attempted to use i8042 read controller RAM command to "
357 "get byte %d.\n", data - ReadControllerRamBase);
358 } else if (data >= PulseOutputBitBase &&
359 data < PulseOutputBitBase + NumOutputBits) {
360 panic("Attempted to use i8042 pulse output bit command to "
361 "to pulse bit %d.\n", data - PulseOutputBitBase);
362 }
363 switch (data) {
364 case GetCommandByte:
365 DPRINTF(I8042, "Getting command byte.\n");
366 writeData(commandByte);
367 break;
368 case WriteCommandByte:
369 DPRINTF(I8042, "Setting command byte.\n");
370 lastCommand = WriteCommandByte;
371 break;
372 case CheckForPassword:
373 panic("i8042 \"Check for password\" command not implemented.\n");
374 case LoadPassword:
375 panic("i8042 \"Load password\" command not implemented.\n");
376 case CheckPassword:
377 panic("i8042 \"Check password\" command not implemented.\n");
378 case DisableMouse:
379 DPRINTF(I8042, "Disabling mouse at controller.\n");
380 commandByte.disableMouse = 1;
381 break;
382 case EnableMouse:
383 DPRINTF(I8042, "Enabling mouse at controller.\n");
384 commandByte.disableMouse = 0;
385 break;
386 case TestMouse:
387 panic("i8042 \"Test mouse\" command not implemented.\n");
388 case SelfTest:
389 panic("i8042 \"Self test\" command not implemented.\n");
390 case InterfaceTest:
391 panic("i8042 \"Interface test\" command not implemented.\n");
392 case DiagnosticDump:
393 panic("i8042 \"Diagnostic dump\" command not implemented.\n");
394 case DisableKeyboard:
395 DPRINTF(I8042, "Disabling keyboard at controller.\n");
396 commandByte.disableKeyboard = 1;
397 break;
398 case EnableKeyboard:
399 DPRINTF(I8042, "Enabling keyboard at controller.\n");
400 commandByte.disableKeyboard = 0;
401 break;
402 case ReadInputPort:
403 panic("i8042 \"Read input port\" command not implemented.\n");
404 case ContinuousPollLow:
405 panic("i8042 \"Continuous poll low\" command not implemented.\n");
406 case ContinuousPollHigh:
407 panic("i8042 \"Continuous poll high\" command not implemented.\n");
408 case ReadOutputPort:
409 panic("i8042 \"Read output port\" command not implemented.\n");
410 case WriteOutputPort:
411 panic("i8042 \"Write output port\" command not implemented.\n");
412 case WriteKeyboardOutputBuff:
413 panic("i8042 \"Write keyboard output buffer\" "
414 "command not implemented.\n");
415 case WriteMouseOutputBuff:
416 DPRINTF(I8042, "Got command to write to mouse output buffer.\n");
417 lastCommand = WriteMouseOutputBuff;
418 break;
419 case WriteToMouse:
420 DPRINTF(I8042, "Expecting mouse command.\n");
421 lastCommand = WriteToMouse;
422 break;
423 case DisableA20:
424 panic("i8042 \"Disable A20\" command not implemented.\n");
425 case EnableA20:
426 panic("i8042 \"Enable A20\" command not implemented.\n");
427 case ReadTestInputs:
428 panic("i8042 \"Read test inputs\" command not implemented.\n");
429 case SystemReset:
430 panic("i8042 \"System reset\" command not implemented.\n");
431 default:
432 panic("Write to unknown i8042 "
433 "(keyboard controller) command port.\n");
434 }
435 } else {
436 panic("Write to unrecognized port %#x.\n", addr);
437 }
438 pkt->makeAtomicResponse();
439 return latency;
440}
441
442void
443X86ISA::I8042::serialize(std::ostream &os)
444{
445 uint8_t statusRegData = statusReg.__data;
446 uint8_t commandByteData = commandByte.__data;
447
448 SERIALIZE_SCALAR(dataPort);
449 SERIALIZE_SCALAR(commandPort);
450 SERIALIZE_SCALAR(statusRegData);
451 SERIALIZE_SCALAR(commandByteData);
452 SERIALIZE_SCALAR(dataReg);
453 SERIALIZE_SCALAR(lastCommand);
454 mouse.serialize("mouse", os);
455 keyboard.serialize("keyboard", os);
456}
457
458void
459X86ISA::I8042::unserialize(Checkpoint *cp, const std::string §ion)
460{
461 uint8_t statusRegData;
462 uint8_t commandByteData;
463
464 UNSERIALIZE_SCALAR(dataPort);
465 UNSERIALIZE_SCALAR(commandPort);
466 UNSERIALIZE_SCALAR(statusRegData);
467 UNSERIALIZE_SCALAR(commandByteData);
468 UNSERIALIZE_SCALAR(dataReg);
469 UNSERIALIZE_SCALAR(lastCommand);
470 mouse.unserialize("mouse", cp, section);
471 keyboard.unserialize("keyboard", cp, section);
472
473 statusReg.__data = statusRegData;
474 commandByte.__data = commandByteData;
475}
476
477void
478X86ISA::PS2Keyboard::serialize(const std::string &base, std::ostream &os)
479{
480 paramOut(os, base + ".lastCommand", lastCommand);
481 int bufferSize = outBuffer.size();
482 paramOut(os, base + ".outBuffer.size", bufferSize);
483 uint8_t *buffer = new uint8_t[bufferSize];
484 for (int i = 0; i < bufferSize; ++i) {
485 buffer[i] = outBuffer.front();
486 outBuffer.pop();
487 }
488 arrayParamOut(os, base + ".outBuffer.elts", buffer,
489 bufferSize*sizeof(uint8_t));
490 delete buffer;
491}
492
493void
494X86ISA::PS2Keyboard::unserialize(const std::string &base, Checkpoint *cp,
495 const std::string §ion)
496{
497 paramIn(cp, section, base + ".lastCommand", lastCommand);
498 int bufferSize;
499 paramIn(cp, section, base + ".outBuffer.size", bufferSize);
500 uint8_t *buffer = new uint8_t[bufferSize];
501 arrayParamIn(cp, section, base + ".outBuffer.elts", buffer,
502 bufferSize*sizeof(uint8_t));
503 for (int i = 0; i < bufferSize; ++i) {
504 outBuffer.push(buffer[i]);
505 }
506 delete buffer;
507}
508
509void
510X86ISA::PS2Mouse::serialize(const std::string &base, std::ostream &os)
511{
512 uint8_t statusData = status.__data;
513 paramOut(os, base + ".lastCommand", lastCommand);
514 int bufferSize = outBuffer.size();
515 paramOut(os, base + ".outBuffer.size", bufferSize);
516 uint8_t *buffer = new uint8_t[bufferSize];
517 for (int i = 0; i < bufferSize; ++i) {
518 buffer[i] = outBuffer.front();
519 outBuffer.pop();
520 }
521 arrayParamOut(os, base + ".outBuffer.elts", buffer,
522 bufferSize*sizeof(uint8_t));
523 delete buffer;
524 paramOut(os, base + ".status", statusData);
525 paramOut(os, base + ".resolution", resolution);
526 paramOut(os, base + ".sampleRate", sampleRate);
527}
528
529void
530X86ISA::PS2Mouse::unserialize(const std::string &base, Checkpoint *cp,
531 const std::string §ion)
532{
533 uint8_t statusData;
534 paramIn(cp, section, base + ".lastCommand", lastCommand);
535 int bufferSize;
536 paramIn(cp, section, base + ".outBuffer.size", bufferSize);
537 uint8_t *buffer = new uint8_t[bufferSize];
538 arrayParamIn(cp, section, base + ".outBuffer.elts", buffer,
539 bufferSize*sizeof(uint8_t));
540 for (int i = 0; i < bufferSize; ++i) {
541 outBuffer.push(buffer[i]);
542 }
543 delete buffer;
544 paramIn(cp, section, base + ".status", statusData);
545 paramIn(cp, section, base + ".resolution", resolution);
546 paramIn(cp, section, base + ".sampleRate", sampleRate);
547
548 status.__data = statusData;
549}
550
551X86ISA::I8042 *
552I8042Params::create()
553{
554 return new X86ISA::I8042(this);
555}
| 33#include "dev/x86/i8042.hh"
34#include "mem/packet.hh"
35#include "mem/packet_access.hh"
36
37// The 8042 has a whopping 32 bytes of internal RAM.
38const uint8_t RamSize = 32;
39const uint8_t NumOutputBits = 14;
40const uint8_t X86ISA::PS2Keyboard::ID[] = {0xab, 0x83};
41const uint8_t X86ISA::PS2Mouse::ID[] = {0x00};
42const uint8_t CommandAck = 0xfa;
43const uint8_t CommandNack = 0xfe;
44const uint8_t BatSuccessful = 0xaa;
45
46void
47X86ISA::I8042::addressRanges(AddrRangeList &range_list)
48{
49 range_list.clear();
50 range_list.push_back(RangeSize(dataPort, 1));
51 range_list.push_back(RangeSize(commandPort, 1));
52}
53
54void
55X86ISA::I8042::writeData(uint8_t newData, bool mouse)
56{
57 DPRINTF(I8042, "Set data %#02x.\n", newData);
58 dataReg = newData;
59 statusReg.outputFull = 1;
60 statusReg.mouseOutputFull = (mouse ? 1 : 0);
61 if (!mouse && commandByte.keyboardFullInt) {
62 DPRINTF(I8042, "Sending keyboard interrupt.\n");
63 keyboardIntPin->raise();
64 //This is a hack
65 keyboardIntPin->lower();
66 } else if (mouse && commandByte.mouseFullInt) {
67 DPRINTF(I8042, "Sending mouse interrupt.\n");
68 mouseIntPin->raise();
69 //This is a hack
70 mouseIntPin->lower();
71 }
72}
73
74void
75X86ISA::PS2Device::ack()
76{
77 bufferData(&CommandAck, sizeof(CommandAck));
78}
79
80void
81X86ISA::PS2Device::nack()
82{
83 bufferData(&CommandNack, sizeof(CommandNack));
84}
85
86void
87X86ISA::PS2Device::bufferData(const uint8_t *data, int size)
88{
89 assert(data || size == 0);
90 while (size) {
91 outBuffer.push(*(data++));
92 size--;
93 }
94}
95
96uint8_t
97X86ISA::I8042::readDataOut()
98{
99 uint8_t data = dataReg;
100 statusReg.outputFull = 0;
101 statusReg.mouseOutputFull = 0;
102 if (keyboard.hasData()) {
103 writeData(keyboard.getData(), false);
104 } else if (mouse.hasData()) {
105 writeData(mouse.getData(), true);
106 }
107 return data;
108}
109
110bool
111X86ISA::PS2Keyboard::processData(uint8_t data)
112{
113 if (lastCommand != NoCommand) {
114 switch (lastCommand) {
115 case LEDWrite:
116 DPRINTF(I8042, "Setting LEDs: "
117 "caps lock %s, num lock %s, scroll lock %s\n",
118 bits(data, 2) ? "on" : "off",
119 bits(data, 1) ? "on" : "off",
120 bits(data, 0) ? "on" : "off");
121 ack();
122 lastCommand = NoCommand;
123 break;
124 case TypematicInfo:
125 DPRINTF(I8042, "Setting typematic info to %#02x.\n", data);
126 ack();
127 lastCommand = NoCommand;
128 break;
129 }
130 return hasData();
131 }
132 switch (data) {
133 case LEDWrite:
134 DPRINTF(I8042, "Got LED write command.\n");
135 ack();
136 lastCommand = LEDWrite;
137 break;
138 case DiagnosticEcho:
139 panic("Keyboard diagnostic echo unimplemented.\n");
140 case AlternateScanCodes:
141 panic("Accessing alternate scan codes unimplemented.\n");
142 case ReadID:
143 DPRINTF(I8042, "Got keyboard read ID command.\n");
144 ack();
145 bufferData((uint8_t *)&ID, sizeof(ID));
146 break;
147 case TypematicInfo:
148 DPRINTF(I8042, "Setting typematic info.\n");
149 ack();
150 lastCommand = TypematicInfo;
151 break;
152 case Enable:
153 DPRINTF(I8042, "Enabling the keyboard.\n");
154 ack();
155 break;
156 case Disable:
157 DPRINTF(I8042, "Disabling the keyboard.\n");
158 ack();
159 break;
160 case DefaultsAndDisable:
161 DPRINTF(I8042, "Disabling and resetting the keyboard.\n");
162 ack();
163 break;
164 case AllKeysToTypematic:
165 panic("Setting all keys to typemantic unimplemented.\n");
166 case AllKeysToMakeRelease:
167 panic("Setting all keys to make/release unimplemented.\n");
168 case AllKeysToMake:
169 panic("Setting all keys to make unimplemented.\n");
170 case AllKeysToTypematicMakeRelease:
171 panic("Setting all keys to "
172 "typematic/make/release unimplemented.\n");
173 case KeyToTypematic:
174 panic("Setting a key to typematic unimplemented.\n");
175 case KeyToMakeRelease:
176 panic("Setting a key to make/release unimplemented.\n");
177 case KeyToMakeOnly:
178 panic("Setting key to make only unimplemented.\n");
179 case Resend:
180 panic("Keyboard resend unimplemented.\n");
181 case Reset:
182 panic("Keyboard reset unimplemented.\n");
183 default:
184 panic("Unknown keyboard command %#02x.\n", data);
185 }
186 return hasData();
187}
188
189bool
190X86ISA::PS2Mouse::processData(uint8_t data)
191{
192 if (lastCommand != NoCommand) {
193 switch(lastCommand) {
194 case SetResolution:
195 DPRINTF(I8042, "Mouse resolution set to %d.\n", data);
196 resolution = data;
197 ack();
198 lastCommand = NoCommand;
199 break;
200 case SampleRate:
201 DPRINTF(I8042, "Mouse sample rate %d samples "
202 "per second.\n", data);
203 sampleRate = data;
204 ack();
205 lastCommand = NoCommand;
206 break;
207 default:
208 panic("Not expecting data for a mouse command.\n");
209 }
210 return hasData();
211 }
212 switch (data) {
213 case Scale1to1:
214 DPRINTF(I8042, "Setting mouse scale to 1:1.\n");
215 status.twoToOne = 0;
216 ack();
217 break;
218 case Scale2to1:
219 DPRINTF(I8042, "Setting mouse scale to 2:1.\n");
220 status.twoToOne = 1;
221 ack();
222 break;
223 case SetResolution:
224 DPRINTF(I8042, "Setting mouse resolution.\n");
225 lastCommand = SetResolution;
226 ack();
227 break;
228 case GetStatus:
229 DPRINTF(I8042, "Getting mouse status.\n");
230 ack();
231 bufferData((uint8_t *)&(status), 1);
232 bufferData(&resolution, sizeof(resolution));
233 bufferData(&sampleRate, sizeof(sampleRate));
234 break;
235 case ReadData:
236 panic("Reading mouse data unimplemented.\n");
237 case ResetWrapMode:
238 panic("Resetting mouse wrap mode unimplemented.\n");
239 case WrapMode:
240 panic("Setting mouse wrap mode unimplemented.\n");
241 case RemoteMode:
242 panic("Setting mouse remote mode unimplemented.\n");
243 case ReadID:
244 DPRINTF(I8042, "Mouse ID requested.\n");
245 ack();
246 bufferData(ID, sizeof(ID));
247 break;
248 case SampleRate:
249 DPRINTF(I8042, "Setting mouse sample rate.\n");
250 lastCommand = SampleRate;
251 ack();
252 break;
253 case DisableReporting:
254 DPRINTF(I8042, "Disabling data reporting.\n");
255 status.enabled = 0;
256 ack();
257 break;
258 case EnableReporting:
259 DPRINTF(I8042, "Enabling data reporting.\n");
260 status.enabled = 1;
261 ack();
262 break;
263 case DefaultsAndDisable:
264 DPRINTF(I8042, "Disabling and resetting mouse.\n");
265 sampleRate = 100;
266 resolution = 4;
267 status.twoToOne = 0;
268 status.enabled = 0;
269 ack();
270 break;
271 case Resend:
272 panic("Mouse resend unimplemented.\n");
273 case Reset:
274 DPRINTF(I8042, "Resetting the mouse.\n");
275 sampleRate = 100;
276 resolution = 4;
277 status.twoToOne = 0;
278 status.enabled = 0;
279 ack();
280 bufferData(&BatSuccessful, sizeof(BatSuccessful));
281 bufferData(ID, sizeof(ID));
282 break;
283 default:
284 warn("Unknown mouse command %#02x.\n", data);
285 nack();
286 break;
287 }
288 return hasData();
289}
290
291
292Tick
293X86ISA::I8042::read(PacketPtr pkt)
294{
295 assert(pkt->getSize() == 1);
296 Addr addr = pkt->getAddr();
297 if (addr == dataPort) {
298 uint8_t data = readDataOut();
299 //DPRINTF(I8042, "Read from data port got %#02x.\n", data);
300 pkt->set<uint8_t>(data);
301 } else if (addr == commandPort) {
302 //DPRINTF(I8042, "Read status as %#02x.\n", (uint8_t)statusReg);
303 pkt->set<uint8_t>((uint8_t)statusReg);
304 } else {
305 panic("Read from unrecognized port %#x.\n", addr);
306 }
307 pkt->makeAtomicResponse();
308 return latency;
309}
310
311Tick
312X86ISA::I8042::write(PacketPtr pkt)
313{
314 assert(pkt->getSize() == 1);
315 Addr addr = pkt->getAddr();
316 uint8_t data = pkt->get<uint8_t>();
317 if (addr == dataPort) {
318 statusReg.commandLast = 0;
319 switch (lastCommand) {
320 case NoCommand:
321 if (keyboard.processData(data)) {
322 writeData(keyboard.getData(), false);
323 }
324 break;
325 case WriteToMouse:
326 if (mouse.processData(data)) {
327 writeData(mouse.getData(), true);
328 }
329 break;
330 case WriteCommandByte:
331 commandByte = data;
332 DPRINTF(I8042, "Got data %#02x for \"Write "
333 "command byte\" command.\n", data);
334 statusReg.passedSelfTest = (uint8_t)commandByte.passedSelfTest;
335 break;
336 case WriteMouseOutputBuff:
337 DPRINTF(I8042, "Got data %#02x for \"Write "
338 "mouse output buffer\" command.\n", data);
339 writeData(data, true);
340 break;
341 default:
342 panic("Data written for unrecognized "
343 "command %#02x\n", lastCommand);
344 }
345 lastCommand = NoCommand;
346 } else if (addr == commandPort) {
347 DPRINTF(I8042, "Got command %#02x.\n", data);
348 statusReg.commandLast = 1;
349 // These purposefully leave off the first byte of the controller RAM
350 // so it can be handled specially.
351 if (data > ReadControllerRamBase &&
352 data < ReadControllerRamBase + RamSize) {
353 panic("Attempted to use i8042 read controller RAM command to "
354 "get byte %d.\n", data - ReadControllerRamBase);
355 } else if (data > WriteControllerRamBase &&
356 data < WriteControllerRamBase + RamSize) {
357 panic("Attempted to use i8042 read controller RAM command to "
358 "get byte %d.\n", data - ReadControllerRamBase);
359 } else if (data >= PulseOutputBitBase &&
360 data < PulseOutputBitBase + NumOutputBits) {
361 panic("Attempted to use i8042 pulse output bit command to "
362 "to pulse bit %d.\n", data - PulseOutputBitBase);
363 }
364 switch (data) {
365 case GetCommandByte:
366 DPRINTF(I8042, "Getting command byte.\n");
367 writeData(commandByte);
368 break;
369 case WriteCommandByte:
370 DPRINTF(I8042, "Setting command byte.\n");
371 lastCommand = WriteCommandByte;
372 break;
373 case CheckForPassword:
374 panic("i8042 \"Check for password\" command not implemented.\n");
375 case LoadPassword:
376 panic("i8042 \"Load password\" command not implemented.\n");
377 case CheckPassword:
378 panic("i8042 \"Check password\" command not implemented.\n");
379 case DisableMouse:
380 DPRINTF(I8042, "Disabling mouse at controller.\n");
381 commandByte.disableMouse = 1;
382 break;
383 case EnableMouse:
384 DPRINTF(I8042, "Enabling mouse at controller.\n");
385 commandByte.disableMouse = 0;
386 break;
387 case TestMouse:
388 panic("i8042 \"Test mouse\" command not implemented.\n");
389 case SelfTest:
390 panic("i8042 \"Self test\" command not implemented.\n");
391 case InterfaceTest:
392 panic("i8042 \"Interface test\" command not implemented.\n");
393 case DiagnosticDump:
394 panic("i8042 \"Diagnostic dump\" command not implemented.\n");
395 case DisableKeyboard:
396 DPRINTF(I8042, "Disabling keyboard at controller.\n");
397 commandByte.disableKeyboard = 1;
398 break;
399 case EnableKeyboard:
400 DPRINTF(I8042, "Enabling keyboard at controller.\n");
401 commandByte.disableKeyboard = 0;
402 break;
403 case ReadInputPort:
404 panic("i8042 \"Read input port\" command not implemented.\n");
405 case ContinuousPollLow:
406 panic("i8042 \"Continuous poll low\" command not implemented.\n");
407 case ContinuousPollHigh:
408 panic("i8042 \"Continuous poll high\" command not implemented.\n");
409 case ReadOutputPort:
410 panic("i8042 \"Read output port\" command not implemented.\n");
411 case WriteOutputPort:
412 panic("i8042 \"Write output port\" command not implemented.\n");
413 case WriteKeyboardOutputBuff:
414 panic("i8042 \"Write keyboard output buffer\" "
415 "command not implemented.\n");
416 case WriteMouseOutputBuff:
417 DPRINTF(I8042, "Got command to write to mouse output buffer.\n");
418 lastCommand = WriteMouseOutputBuff;
419 break;
420 case WriteToMouse:
421 DPRINTF(I8042, "Expecting mouse command.\n");
422 lastCommand = WriteToMouse;
423 break;
424 case DisableA20:
425 panic("i8042 \"Disable A20\" command not implemented.\n");
426 case EnableA20:
427 panic("i8042 \"Enable A20\" command not implemented.\n");
428 case ReadTestInputs:
429 panic("i8042 \"Read test inputs\" command not implemented.\n");
430 case SystemReset:
431 panic("i8042 \"System reset\" command not implemented.\n");
432 default:
433 panic("Write to unknown i8042 "
434 "(keyboard controller) command port.\n");
435 }
436 } else {
437 panic("Write to unrecognized port %#x.\n", addr);
438 }
439 pkt->makeAtomicResponse();
440 return latency;
441}
442
443void
444X86ISA::I8042::serialize(std::ostream &os)
445{
446 uint8_t statusRegData = statusReg.__data;
447 uint8_t commandByteData = commandByte.__data;
448
449 SERIALIZE_SCALAR(dataPort);
450 SERIALIZE_SCALAR(commandPort);
451 SERIALIZE_SCALAR(statusRegData);
452 SERIALIZE_SCALAR(commandByteData);
453 SERIALIZE_SCALAR(dataReg);
454 SERIALIZE_SCALAR(lastCommand);
455 mouse.serialize("mouse", os);
456 keyboard.serialize("keyboard", os);
457}
458
459void
460X86ISA::I8042::unserialize(Checkpoint *cp, const std::string §ion)
461{
462 uint8_t statusRegData;
463 uint8_t commandByteData;
464
465 UNSERIALIZE_SCALAR(dataPort);
466 UNSERIALIZE_SCALAR(commandPort);
467 UNSERIALIZE_SCALAR(statusRegData);
468 UNSERIALIZE_SCALAR(commandByteData);
469 UNSERIALIZE_SCALAR(dataReg);
470 UNSERIALIZE_SCALAR(lastCommand);
471 mouse.unserialize("mouse", cp, section);
472 keyboard.unserialize("keyboard", cp, section);
473
474 statusReg.__data = statusRegData;
475 commandByte.__data = commandByteData;
476}
477
478void
479X86ISA::PS2Keyboard::serialize(const std::string &base, std::ostream &os)
480{
481 paramOut(os, base + ".lastCommand", lastCommand);
482 int bufferSize = outBuffer.size();
483 paramOut(os, base + ".outBuffer.size", bufferSize);
484 uint8_t *buffer = new uint8_t[bufferSize];
485 for (int i = 0; i < bufferSize; ++i) {
486 buffer[i] = outBuffer.front();
487 outBuffer.pop();
488 }
489 arrayParamOut(os, base + ".outBuffer.elts", buffer,
490 bufferSize*sizeof(uint8_t));
491 delete buffer;
492}
493
494void
495X86ISA::PS2Keyboard::unserialize(const std::string &base, Checkpoint *cp,
496 const std::string §ion)
497{
498 paramIn(cp, section, base + ".lastCommand", lastCommand);
499 int bufferSize;
500 paramIn(cp, section, base + ".outBuffer.size", bufferSize);
501 uint8_t *buffer = new uint8_t[bufferSize];
502 arrayParamIn(cp, section, base + ".outBuffer.elts", buffer,
503 bufferSize*sizeof(uint8_t));
504 for (int i = 0; i < bufferSize; ++i) {
505 outBuffer.push(buffer[i]);
506 }
507 delete buffer;
508}
509
510void
511X86ISA::PS2Mouse::serialize(const std::string &base, std::ostream &os)
512{
513 uint8_t statusData = status.__data;
514 paramOut(os, base + ".lastCommand", lastCommand);
515 int bufferSize = outBuffer.size();
516 paramOut(os, base + ".outBuffer.size", bufferSize);
517 uint8_t *buffer = new uint8_t[bufferSize];
518 for (int i = 0; i < bufferSize; ++i) {
519 buffer[i] = outBuffer.front();
520 outBuffer.pop();
521 }
522 arrayParamOut(os, base + ".outBuffer.elts", buffer,
523 bufferSize*sizeof(uint8_t));
524 delete buffer;
525 paramOut(os, base + ".status", statusData);
526 paramOut(os, base + ".resolution", resolution);
527 paramOut(os, base + ".sampleRate", sampleRate);
528}
529
530void
531X86ISA::PS2Mouse::unserialize(const std::string &base, Checkpoint *cp,
532 const std::string §ion)
533{
534 uint8_t statusData;
535 paramIn(cp, section, base + ".lastCommand", lastCommand);
536 int bufferSize;
537 paramIn(cp, section, base + ".outBuffer.size", bufferSize);
538 uint8_t *buffer = new uint8_t[bufferSize];
539 arrayParamIn(cp, section, base + ".outBuffer.elts", buffer,
540 bufferSize*sizeof(uint8_t));
541 for (int i = 0; i < bufferSize; ++i) {
542 outBuffer.push(buffer[i]);
543 }
544 delete buffer;
545 paramIn(cp, section, base + ".status", statusData);
546 paramIn(cp, section, base + ".resolution", resolution);
547 paramIn(cp, section, base + ".sampleRate", sampleRate);
548
549 status.__data = statusData;
550}
551
552X86ISA::I8042 *
553I8042Params::create()
554{
555 return new X86ISA::I8042(this);
556}
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