VirtualBox

source: vbox/trunk/src/VBox/Devices/Input/PS2K.cpp@ 54030

Last change on this file since 54030 was 52782, checked in by vboxsync, 10 years ago

ps2kLoadQueue: Paraoia, check SSMR3GetU32 return code before using the data.
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 57.6 KB
Line 
1/** @file
2 * PS2K - PS/2 keyboard emulation.
3 */
4
5/*
6 * Copyright (C) 2007-2012 Oracle Corporation
7 *
8 * This file is part of VirtualBox Open Source Edition (OSE), as
9 * available from http://www.virtualbox.org. This file is free software;
10 * you can redistribute it and/or modify it under the terms of the GNU
11 * General Public License (GPL) as published by the Free Software
12 * Foundation, in version 2 as it comes in the "COPYING" file of the
13 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15 */
16
17/*
18 * References:
19 *
20 * IBM PS/2 Technical Reference, Keyboards (101- and 102-Key), 1990
21 * Keyboard Scan Code Specification, Microsoft, 2000
22 *
23 * Notes:
24 * - The keyboard never sends partial scan-code sequences; if there isn't enough
25 * room left in the buffer for the entire sequence, the keystroke is discarded
26 * and an overrun code is sent instead.
27 * - Command responses do not disturb stored keystrokes and always have priority.
28 * - Caps Lock and Scroll Lock are normal keys from the keyboard's point of view.
29 * However, Num Lock is not and the keyboard internally tracks its state.
30 * - The way Print Screen works in scan set 1/2 is totally insane.
31 */
32
33
34/*******************************************************************************
35* Header Files *
36*******************************************************************************/
37#define LOG_GROUP LOG_GROUP_DEV_KBD
38#include <VBox/vmm/pdmdev.h>
39#include <VBox/err.h>
40#include <iprt/assert.h>
41#include <iprt/uuid.h>
42#include "VBoxDD.h"
43#define IN_PS2K
44#include "PS2Dev.h"
45
46/*******************************************************************************
47* Defined Constants And Macros *
48*******************************************************************************/
49/** @name Keyboard commands sent by the system.
50 * @{ */
51#define KCMD_LEDS 0xED
52#define KCMD_ECHO 0xEE
53#define KCMD_INVALID_1 0xEF
54#define KCMD_SCANSET 0xF0
55#define KCMD_INVALID_2 0xF1
56#define KCMD_READ_ID 0xF2
57#define KCMD_RATE_DELAY 0xF3
58#define KCMD_ENABLE 0xF4
59#define KCMD_DFLT_DISABLE 0xF5
60#define KCMD_SET_DEFAULT 0xF6
61#define KCMD_ALL_TYPEMATIC 0xF7
62#define KCMD_ALL_MK_BRK 0xF8
63#define KCMD_ALL_MAKE 0xF9
64#define KCMD_ALL_TMB 0xFA
65#define KCMD_TYPE_MATIC 0xFB
66#define KCMD_TYPE_MK_BRK 0xFC
67#define KCMD_TYPE_MAKE 0xFD
68#define KCMD_RESEND 0xFE
69#define KCMD_RESET 0xFF
70/** @} */
71
72/** @name Keyboard responses sent to the system.
73 * @{ */
74#define KRSP_ID1 0xAB
75#define KRSP_ID2 0x83
76#define KRSP_BAT_OK 0xAA
77#define KRSP_BAT_FAIL 0xFC /* Also a 'release keys' signal. */
78#define KRSP_ECHO 0xEE
79#define KRSP_ACK 0xFA
80#define KRSP_RESEND 0xFE
81/** @} */
82
83/** @name HID modifier range.
84 * @{ */
85#define HID_MODIFIER_FIRST 0xE0
86#define HID_MODIFIER_LAST 0xE8
87/** @} */
88
89/** @name USB HID additional constants
90 * @{ */
91/** The highest USB usage code reported by VirtualBox. */
92#define VBOX_USB_MAX_USAGE_CODE 0xE7
93/** The size of an array needed to store all USB usage codes */
94#define VBOX_USB_USAGE_ARRAY_SIZE (VBOX_USB_MAX_USAGE_CODE + 1)
95/** @} */
96
97/** @name Modifier key states. Sorted in USB HID code order.
98 * @{ */
99#define MOD_LCTRL 0x01
100#define MOD_LSHIFT 0x02
101#define MOD_LALT 0x04
102#define MOD_LGUI 0x08
103#define MOD_RCTRL 0x10
104#define MOD_RSHIFT 0x20
105#define MOD_RALT 0x40
106#define MOD_RGUI 0x80
107/** @} */
108
109/* Default typematic value. */
110#define KBD_DFL_RATE_DELAY 0x2B
111
112/** Define a simple PS/2 input device queue. */
113#define DEF_PS2Q_TYPE(name, size) \
114 typedef struct { \
115 uint32_t rpos; \
116 uint32_t wpos; \
117 uint32_t cUsed; \
118 uint32_t cSize; \
119 uint8_t abQueue[size]; \
120 } name
121
122/* Internal keyboard queue sizes. The input queue doesn't need to be
123 * extra huge and the command queue only needs to handle a few bytes.
124 */
125#define KBD_KEY_QUEUE_SIZE 64
126#define KBD_CMD_QUEUE_SIZE 4
127
128/*******************************************************************************
129* Structures and Typedefs *
130*******************************************************************************/
131
132/** Scancode translator state. */
133typedef enum {
134 SS_IDLE, /**< Starting state. */
135 SS_EXT, /**< E0 byte was received. */
136 SS_EXT1 /**< E1 byte was received. */
137} scan_state_t;
138
139/** Typematic state. */
140typedef enum {
141 KBD_TMS_IDLE = 0, /* No typematic key active. */
142 KBD_TMS_DELAY = 1, /* In the initial delay period. */
143 KBD_TMS_REPEAT = 2, /* Key repeating at set rate. */
144 KBD_TMS_32BIT_HACK = 0x7fffffff
145} tmatic_state_t;
146
147
148DEF_PS2Q_TYPE(KbdKeyQ, KBD_KEY_QUEUE_SIZE);
149DEF_PS2Q_TYPE(KbdCmdQ, KBD_CMD_QUEUE_SIZE);
150DEF_PS2Q_TYPE(GeneriQ, 1);
151
152/**
153 * The PS/2 keyboard instance data.
154 */
155typedef struct PS2K
156{
157 /** Pointer to parent device (keyboard controller). */
158 R3PTRTYPE(void *) pParent;
159 /** Set if keyboard is enabled ('scans' for input). */
160 bool fScanning;
161 /** Set NumLock is on. */
162 bool fNumLockOn;
163 /** Selected scan set. */
164 uint8_t u8ScanSet;
165 /** Modifier key state. */
166 uint8_t u8Modifiers;
167 /** Currently processed command (if any). */
168 uint8_t u8CurrCmd;
169 /** Status indicator (LED) state. */
170 uint8_t u8LEDs;
171 /** Selected typematic delay/rate. */
172 uint8_t u8Typematic;
173 /** Usage code of current typematic key, if any. */
174 uint8_t u8TypematicKey;
175 /** Current typematic repeat state. */
176 tmatic_state_t enmTypematicState;
177 /** Buffer holding scan codes to be sent to the host. */
178 KbdKeyQ keyQ;
179 /** Command response queue (priority). */
180 KbdCmdQ cmdQ;
181 /** Currently depressed keys. */
182 uint8_t abDepressedKeys[VBOX_USB_USAGE_ARRAY_SIZE];
183 /** Typematic delay in milliseconds. */
184 unsigned uTypematicDelay;
185 /** Typematic repeat period in milliseconds. */
186 unsigned uTypematicRepeat;
187#if HC_ARCH_BITS == 32
188 uint32_t Alignment0;
189#endif
190
191 /** Command delay timer - RC Ptr. */
192 PTMTIMERRC pKbdDelayTimerRC;
193 /** Typematic timer - RC Ptr. */
194 PTMTIMERRC pKbdTypematicTimerRC;
195
196 /** The device critical section protecting everything - R3 Ptr */
197 R3PTRTYPE(PPDMCRITSECT) pCritSectR3;
198 /** Command delay timer - R3 Ptr. */
199 PTMTIMERR3 pKbdDelayTimerR3;
200 /** Typematic timer - R3 Ptr. */
201 PTMTIMERR3 pKbdTypematicTimerR3;
202 RTR3PTR Alignment2;
203
204 /** Command delay timer - R0 Ptr. */
205 PTMTIMERR0 pKbdDelayTimerR0;
206 /** Typematic timer - R0 Ptr. */
207 PTMTIMERR0 pKbdTypematicTimerR0;
208
209 scan_state_t XlatState; ///@todo: temporary
210 uint32_t Alignment1;
211
212 /**
213 * Keyboard port - LUN#0.
214 *
215 * @implements PDMIBASE
216 * @implements PDMIKEYBOARDPORT
217 */
218 struct
219 {
220 /** The base interface for the keyboard port. */
221 PDMIBASE IBase;
222 /** The keyboard port base interface. */
223 PDMIKEYBOARDPORT IPort;
224
225 /** The base interface of the attached keyboard driver. */
226 R3PTRTYPE(PPDMIBASE) pDrvBase;
227 /** The keyboard interface of the attached keyboard driver. */
228 R3PTRTYPE(PPDMIKEYBOARDCONNECTOR) pDrv;
229 } Keyboard;
230} PS2K, *PPS2K;
231
232AssertCompile(PS2K_STRUCT_FILLER >= sizeof(PS2K));
233
234#ifndef VBOX_DEVICE_STRUCT_TESTCASE
235
236/* Key type flags. */
237#define KF_E0 0x01 /* E0 prefix. */
238#define KF_NB 0x02 /* No break code. */
239#define KF_GK 0x04 /* Gray navigation key. */
240#define KF_PS 0x08 /* Print Screen key. */
241#define KF_PB 0x10 /* Pause/Break key. */
242#define KF_NL 0x20 /* Num Lock key. */
243#define KF_NS 0x40 /* NumPad '/' key. */
244
245/* Scan Set 3 typematic defaults. */
246#define T_U 0x00 /* Unknown value. */
247#define T_T 0x01 /* Key is typematic. */
248#define T_M 0x02 /* Key is make only. */
249#define T_B 0x04 /* Key is make/break. */
250
251/* Special key values. */
252#define NONE 0x93 /* No PS/2 scan code returned. */
253#define UNAS 0x94 /* No PS/2 scan assigned to key. */
254#define RSVD 0x95 /* Reserved, do not use. */
255#define UNKN 0x96 /* Translation unknown. */
256
257/* Key definition structure. */
258typedef struct {
259 uint8_t makeS1; /* Set 1 make code. */
260 uint8_t makeS2; /* Set 2 make code. */
261 uint8_t makeS3; /* Set 3 make code. */
262 uint8_t keyFlags; /* Key flags. */
263 uint8_t keyMatic; /* Set 3 typematic default. */
264} key_def;
265
266/* USB to PS/2 conversion table for regular keys. */
267static const key_def aPS2Keys[] = {
268 /* 00 */ {NONE, NONE, NONE, KF_NB, T_U }, /* Key N/A: No Event */
269 /* 01 */ {0xFF, 0x00, 0x00, KF_NB, T_U }, /* Key N/A: Overrun Error */
270 /* 02 */ {0xFC, 0xFC, 0xFC, KF_NB, T_U }, /* Key N/A: POST Fail */
271 /* 03 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key N/A: ErrorUndefined */
272 /* 04 */ {0x1E, 0x1C, 0x1C, 0, T_T }, /* Key 31: a A */
273 /* 05 */ {0x30, 0x32, 0x32, 0, T_T }, /* Key 50: b B */
274 /* 06 */ {0x2E, 0x21, 0x21, 0, T_T }, /* Key 48: c C */
275 /* 07 */ {0x20, 0x23, 0x23, 0, T_T }, /* Key 33: d D */
276 /* 08 */ {0x12, 0x24, 0x24, 0, T_T }, /* Key 19: e E */
277 /* 09 */ {0x21, 0x2B, 0x2B, 0, T_T }, /* Key 34: f F */
278 /* 0A */ {0x22, 0x34, 0x34, 0, T_T }, /* Key 35: g G */
279 /* 0B */ {0x23, 0x33, 0x33, 0, T_T }, /* Key 36: h H */
280 /* 0C */ {0x17, 0x43, 0x43, 0, T_T }, /* Key 24: i I */
281 /* 0D */ {0x24, 0x3B, 0x3B, 0, T_T }, /* Key 37: j J */
282 /* 0E */ {0x25, 0x42, 0x42, 0, T_T }, /* Key 38: k K */
283 /* 0F */ {0x26, 0x4B, 0x4B, 0, T_T }, /* Key 39: l L */
284 /* 10 */ {0x32, 0x3A, 0x3A, 0, T_T }, /* Key 52: m M */
285 /* 11 */ {0x31, 0x31, 0x31, 0, T_T }, /* Key 51: n N */
286 /* 12 */ {0x18, 0x44, 0x44, 0, T_T }, /* Key 25: o O */
287 /* 13 */ {0x19, 0x4D, 0x4D, 0, T_T }, /* Key 26: p P */
288 /* 14 */ {0x10, 0x15, 0x15, 0, T_T }, /* Key 17: q Q */
289 /* 15 */ {0x13, 0x2D, 0x2D, 0, T_T }, /* Key 20: r R */
290 /* 16 */ {0x1F, 0x1B, 0x1B, 0, T_T }, /* Key 32: s S */
291 /* 17 */ {0x14, 0x2C, 0x2C, 0, T_T }, /* Key 21: t T */
292 /* 18 */ {0x16, 0x3C, 0x3C, 0, T_T }, /* Key 23: u U */
293 /* 19 */ {0x2F, 0x2A, 0x2A, 0, T_T }, /* Key 49: v V */
294 /* 1A */ {0x11, 0x1D, 0x1D, 0, T_T }, /* Key 18: w W */
295 /* 1B */ {0x2D, 0x22, 0x22, 0, T_T }, /* Key 47: x X */
296 /* 1C */ {0x15, 0x35, 0x35, 0, T_T }, /* Key 22: y Y */
297 /* 1D */ {0x2C, 0x1A, 0x1A, 0, T_T }, /* Key 46: z Z */
298 /* 1E */ {0x02, 0x16, 0x16, 0, T_T }, /* Key 2: 1 ! */
299 /* 1F */ {0x03, 0x1E, 0x1E, 0, T_T }, /* Key 3: 2 @ */
300 /* 20 */ {0x04, 0x26, 0x26, 0, T_T }, /* Key 4: 3 # */
301 /* 21 */ {0x05, 0x25, 0x25, 0, T_T }, /* Key 5: 4 $ */
302 /* 22 */ {0x06, 0x2E, 0x2E, 0, T_T }, /* Key 6: 5 % */
303 /* 23 */ {0x07, 0x36, 0x36, 0, T_T }, /* Key 7: 6 ^ */
304 /* 24 */ {0x08, 0x3D, 0x3D, 0, T_T }, /* Key 8: 7 & */
305 /* 25 */ {0x09, 0x3E, 0x3E, 0, T_T }, /* Key 9: 8 * */
306 /* 26 */ {0x0A, 0x46, 0x46, 0, T_T }, /* Key 10: 9 ( */
307 /* 27 */ {0x0B, 0x45, 0x45, 0, T_T }, /* Key 11: 0 ) */
308 /* 28 */ {0x1C, 0x5A, 0x5A, 0, T_T }, /* Key 43: Return */
309 /* 29 */ {0x01, 0x76, 0x08, 0, T_M }, /* Key 110: Escape */
310 /* 2A */ {0x0E, 0x66, 0x66, 0, T_T }, /* Key 15: Backspace */
311 /* 2B */ {0x0F, 0x0D, 0x0D, 0, T_T }, /* Key 16: Tab */
312 /* 2C */ {0x39, 0x29, 0x29, 0, T_T }, /* Key 61: Space */
313 /* 2D */ {0x0C, 0x4E, 0x4E, 0, T_T }, /* Key 12: - _ */
314 /* 2E */ {0x0D, 0x55, 0x55, 0, T_T }, /* Key 13: = + */
315 /* 2F */ {0x1A, 0x54, 0x54, 0, T_T }, /* Key 27: [ { */
316 /* 30 */ {0x1B, 0x5B, 0x5B, 0, T_T }, /* Key 28: ] } */
317 /* 31 */ {0x2B, 0x5D, 0x5C, 0, T_T }, /* Key 29: \ | */
318 /* 32 */ {0x2B, 0x5D, 0x5D, 0, T_T }, /* Key 42: Europe 1 (Note 2) */
319 /* 33 */ {0x27, 0x4C, 0x4C, 0, T_T }, /* Key 40: ; : */
320 /* 34 */ {0x28, 0x52, 0x52, 0, T_T }, /* Key 41: ' " */
321 /* 35 */ {0x29, 0x0E, 0x0E, 0, T_T }, /* Key 1: ` ~ */
322 /* 36 */ {0x33, 0x41, 0x41, 0, T_T }, /* Key 53: , < */
323 /* 37 */ {0x34, 0x49, 0x49, 0, T_T }, /* Key 54: . > */
324 /* 38 */ {0x35, 0x4A, 0x4A, 0, T_T }, /* Key 55: / ? */
325 /* 39 */ {0x3A, 0x58, 0x14, 0, T_B }, /* Key 30: Caps Lock */
326 /* 3A */ {0x3B, 0x05, 0x07, 0, T_M }, /* Key 112: F1 */
327 /* 3B */ {0x3C, 0x06, 0x0F, 0, T_M }, /* Key 113: F2 */
328 /* 3C */ {0x3D, 0x04, 0x17, 0, T_M }, /* Key 114: F3 */
329 /* 3D */ {0x3E, 0x0C, 0x1F, 0, T_M }, /* Key 115: F4 */
330 /* 3E */ {0x3F, 0x03, 0x27, 0, T_M }, /* Key 116: F5 */
331 /* 3F */ {0x40, 0x0B, 0x2F, 0, T_M }, /* Key 117: F6 */
332 /* 40 */ {0x41, 0x83, 0x37, 0, T_M }, /* Key 118: F7 */
333 /* 41 */ {0x42, 0x0A, 0x3F, 0, T_M }, /* Key 119: F8 */
334 /* 42 */ {0x43, 0x01, 0x47, 0, T_M }, /* Key 120: F9 */
335 /* 43 */ {0x44, 0x09, 0x4F, 0, T_M }, /* Key 121: F10 */
336 /* 44 */ {0x57, 0x78, 0x56, 0, T_M }, /* Key 122: F11 */
337 /* 45 */ {0x58, 0x07, 0x5E, 0, T_M }, /* Key 123: F12 */
338 /* 46 */ {0x37, 0x7C, 0x57, KF_PS, T_M }, /* Key 124: Print Screen (Note 1) */
339 /* 47 */ {0x46, 0x7E, 0x5F, 0, T_M }, /* Key 125: Scroll Lock */
340 /* 48 */ {RSVD, RSVD, RSVD, KF_PB, T_M }, /* Key 126: Break (Ctrl-Pause) */
341 /* 49 */ {0x52, 0x70, 0x67, KF_GK, T_M }, /* Key 75: Insert (Note 1) */
342 /* 4A */ {0x47, 0x6C, 0x6E, KF_GK, T_M }, /* Key 80: Home (Note 1) */
343 /* 4B */ {0x49, 0x7D, 0x6F, KF_GK, T_M }, /* Key 85: Page Up (Note 1) */
344 /* 4C */ {0x53, 0x71, 0x64, KF_GK, T_T }, /* Key 76: Delete (Note 1) */
345 /* 4D */ {0x4F, 0x69, 0x65, KF_GK, T_M }, /* Key 81: End (Note 1) */
346 /* 4E */ {0x51, 0x7A, 0x6D, KF_GK, T_M }, /* Key 86: Page Down (Note 1) */
347 /* 4F */ {0x4D, 0x74, 0x6A, KF_GK, T_T }, /* Key 89: Right Arrow (Note 1) */
348 /* 50 */ {0x4B, 0x6B, 0x61, KF_GK, T_T }, /* Key 79: Left Arrow (Note 1) */
349 /* 51 */ {0x50, 0x72, 0x60, KF_GK, T_T }, /* Key 84: Down Arrow (Note 1) */
350 /* 52 */ {0x48, 0x75, 0x63, KF_GK, T_T }, /* Key 83: Up Arrow (Note 1) */
351 /* 53 */ {0x45, 0x77, 0x76, KF_NL, T_M }, /* Key 90: Num Lock */
352 /* 54 */ {0x35, 0x4A, 0x77, KF_NS, T_M }, /* Key 95: Keypad / (Note 1) */
353 /* 55 */ {0x37, 0x7C, 0x7E, 0, T_M }, /* Key 100: Keypad * */
354 /* 56 */ {0x4A, 0x7B, 0x84, 0, T_M }, /* Key 105: Keypad - */
355 /* 57 */ {0x4E, 0x79, 0x7C, 0, T_T }, /* Key 106: Keypad + */
356 /* 58 */ {0x1C, 0x5A, 0x79, KF_E0, T_M }, /* Key 108: Keypad Enter */
357 /* 59 */ {0x4F, 0x69, 0x69, 0, T_M }, /* Key 93: Keypad 1 End */
358 /* 5A */ {0x50, 0x72, 0x72, 0, T_M }, /* Key 98: Keypad 2 Down */
359 /* 5B */ {0x51, 0x7A, 0x7A, 0, T_M }, /* Key 103: Keypad 3 PageDn */
360 /* 5C */ {0x4B, 0x6B, 0x6B, 0, T_M }, /* Key 92: Keypad 4 Left */
361 /* 5D */ {0x4C, 0x73, 0x73, 0, T_M }, /* Key 97: Keypad 5 */
362 /* 5E */ {0x4D, 0x74, 0x74, 0, T_M }, /* Key 102: Keypad 6 Right */
363 /* 5F */ {0x47, 0x6C, 0x6C, 0, T_M }, /* Key 91: Keypad 7 Home */
364 /* 60 */ {0x48, 0x75, 0x75, 0, T_M }, /* Key 96: Keypad 8 Up */
365 /* 61 */ {0x49, 0x7D, 0x7D, 0, T_M }, /* Key 101: Keypad 9 PageUp */
366 /* 62 */ {0x52, 0x70, 0x70, 0, T_M }, /* Key 99: Keypad 0 Insert */
367 /* 63 */ {0x53, 0x71, 0x71, 0, T_M }, /* Key 104: Keypad . Delete */
368 /* 64 */ {0x56, 0x61, 0x13, 0, T_T }, /* Key 45: Europe 2 (Note 2) */
369 /* 65 */ {0x5D, 0x2F, UNKN, KF_E0, T_U }, /* Key 129: App */
370 /* 66 */ {0x5E, 0x37, UNKN, KF_E0, T_U }, /* Key Unk: Keyboard Power */
371 /* 67 */ {0x59, 0x0F, UNKN, 0, T_U }, /* Key Unk: Keypad = */
372 /* 68 */ {0x64, 0x08, UNKN, 0, T_U }, /* Key Unk: F13 */
373 /* 69 */ {0x65, 0x10, UNKN, 0, T_U }, /* Key Unk: F14 */
374 /* 6A */ {0x66, 0x18, UNKN, 0, T_U }, /* Key Unk: F15 */
375 /* 6B */ {0x67, 0x20, UNKN, 0, T_U }, /* Key Unk: F16 */
376 /* 6C */ {0x68, 0x28, UNKN, 0, T_U }, /* Key Unk: F17 */
377 /* 6D */ {0x69, 0x30, UNKN, 0, T_U }, /* Key Unk: F18 */
378 /* 6E */ {0x6A, 0x38, UNKN, 0, T_U }, /* Key Unk: F19 */
379 /* 6F */ {0x6B, 0x40, UNKN, 0, T_U }, /* Key Unk: F20 */
380 /* 70 */ {0x6C, 0x48, UNKN, 0, T_U }, /* Key Unk: F21 */
381 /* 71 */ {0x6D, 0x50, UNKN, 0, T_U }, /* Key Unk: F22 */
382 /* 72 */ {0x6E, 0x57, UNKN, 0, T_U }, /* Key Unk: F23 */
383 /* 73 */ {0x76, 0x5F, UNKN, 0, T_U }, /* Key Unk: F24 */
384 /* 74 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Execute */
385 /* 75 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Help */
386 /* 76 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Menu */
387 /* 77 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Select */
388 /* 78 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Stop */
389 /* 79 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Again */
390 /* 7A */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Undo */
391 /* 7B */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Cut */
392 /* 7C */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Copy */
393 /* 7D */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Paste */
394 /* 7E */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Find */
395 /* 7F */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Mute */
396 /* 80 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Volume Up */
397 /* 81 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Volume Dn */
398 /* 82 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Locking Caps Lock */
399 /* 83 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Locking Num Lock */
400 /* 84 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Locking Scroll Lock */
401 /* 85 */ {0x7E, 0x6D, UNKN, 0, T_U }, /* Key Unk: Keypad , (Brazilian Keypad .) */
402 /* 86 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Equal Sign */
403 /* 87 */ {0x73, 0x51, UNKN, 0, T_U }, /* Key Unk: Keyboard Intl 1 (Ro) */
404 /* 88 */ {0x70, 0x13, UNKN, 0, T_U }, /* Key Unk: Keyboard Intl2 (K'kana/H'gana) */
405 /* 89 */ {0x7D, 0x6A, UNKN, 0, T_U }, /* Key Unk: Keyboard Intl 2 (Yen) */
406 /* 8A */ {0x79, 0x64, UNKN, 0, T_U }, /* Key Unk: Keyboard Intl 4 (Henkan) */
407 /* 8B */ {0x7B, 0x67, UNKN, 0, T_U }, /* Key Unk: Keyboard Intl 5 (Muhenkan) */
408 /* 8C */ {0x5C, 0x27, UNKN, 0, T_U }, /* Key Unk: Keyboard Intl 6 (PC9800 Pad ,) */
409 /* 8D */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Intl 7 */
410 /* 8E */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Intl 8 */
411 /* 8F */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Intl 9 */
412 /* 90 */ {0xF2, 0xF2, UNKN, KF_NB, T_U }, /* Key Unk: Keyboard Lang 1 (Hang'l/Engl) */
413 /* 91 */ {0xF1, 0xF1, UNKN, KF_NB, T_U }, /* Key Unk: Keyboard Lang 2 (Hanja) */
414 /* 92 */ {0x78, 0x63, UNKN, 0, T_U }, /* Key Unk: Keyboard Lang 3 (Katakana) */
415 /* 93 */ {0x77, 0x62, UNKN, 0, T_U }, /* Key Unk: Keyboard Lang 4 (Hiragana) */
416 /* 94 */ {0x76, 0x5F, UNKN, 0, T_U }, /* Key Unk: Keyboard Lang 5 (Zen/Han) */
417 /* 95 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Lang 6 */
418 /* 96 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Lang 7 */
419 /* 97 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Lang 8 */
420 /* 98 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Lang 9 */
421 /* 99 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Alternate Erase */
422 /* 9A */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard SysReq/Attention (Note 3) */
423 /* 9B */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Cancel */
424 /* 9C */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Clear */
425 /* 9D */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Prior */
426 /* 9E */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Return */
427 /* 9F */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Separator */
428 /* A0 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Out */
429 /* A1 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Oper */
430 /* A2 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard Clear/Again */
431 /* A3 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard CrSel/Props */
432 /* A4 */ {UNAS, UNAS, UNAS, 0, T_U }, /* Key Unk: Keyboard ExSel */
433};
434
435/*
436 * Note 1: The behavior of these keys depends on the state of modifier keys
437 * at the time the key was pressed.
438 *
439 * Note 2: The key label depends on the national version of the keyboard.
440 *
441 * Note 3: Certain keys which have their own PS/2 scancodes do not exist on
442 * USB keyboards; the SysReq key is an example. The SysReq key scancode needs
443 * to be translated to the Print Screen HID usage code. The HID usage to PS/2
444 * scancode conversion then generates the correct sequence depending on the
445 * keyboard state.
446 */
447
448/* USB to PS/2 conversion table for modifier keys. */
449static const key_def aPS2ModKeys[] = {
450 /* E0 */ {0x1D, 0x14, 0x11, 0, T_B }, /* Key 58: Left Control */
451 /* E1 */ {0x2A, 0x12, 0x12, 0, T_B }, /* Key 44: Left Shift */
452 /* E2 */ {0x38, 0x11, 0x19, 0, T_B }, /* Key 60: Left Alt */
453 /* E3 */ {0x5B, 0x1F, UNKN, KF_E0, T_U }, /* Key 127: Left GUI */
454 /* E4 */ {0x1D, 0x14, 0x58, KF_E0, T_M }, /* Key 64: Right Control */
455 /* E5 */ {0x36, 0x59, 0x59, 0, T_B }, /* Key 57: Right Shift */
456 /* E6 */ {0x38, 0x11, 0x39, KF_E0, T_M }, /* Key 62: Right Alt */
457 /* E7 */ {0x5C, 0x27, UNKN, KF_E0, T_U }, /* Key 128: Right GUI */
458};
459
460/*******************************************************************************
461* Global Variables *
462*******************************************************************************/
463
464/*******************************************************************************
465* Internal Functions *
466*******************************************************************************/
467
468
469/**
470 * Clear a queue.
471 *
472 * @param pQ Pointer to the queue.
473 */
474static void ps2kClearQueue(GeneriQ *pQ)
475{
476 LogFlowFunc(("Clearing queue %p\n", pQ));
477 pQ->wpos = pQ->rpos;
478 pQ->cUsed = 0;
479}
480
481
482/**
483 * Add a byte to a queue.
484 *
485 * @param pQ Pointer to the queue.
486 * @param val The byte to store.
487 */
488static void ps2kInsertQueue(GeneriQ *pQ, uint8_t val)
489{
490 /* Check if queue is full. */
491 if (pQ->cUsed >= pQ->cSize)
492 {
493 LogFlowFunc(("queue %p full (%d entries)\n", pQ, pQ->cUsed));
494 return;
495 }
496 /* Insert data and update circular buffer write position. */
497 pQ->abQueue[pQ->wpos] = val;
498 if (++pQ->wpos == pQ->cSize)
499 pQ->wpos = 0; /* Roll over. */
500 ++pQ->cUsed;
501 LogFlowFunc(("inserted 0x%02X into queue %p\n", val, pQ));
502}
503
504#ifdef IN_RING3
505
506/**
507 * Save a queue state.
508 *
509 * @param pSSM SSM handle to write the state to.
510 * @param pQ Pointer to the queue.
511 */
512static void ps2kSaveQueue(PSSMHANDLE pSSM, GeneriQ *pQ)
513{
514 uint32_t cItems = pQ->cUsed;
515 int i;
516
517 /* Only save the number of items. Note that the read/write
518 * positions aren't saved as they will be rebuilt on load.
519 */
520 SSMR3PutU32(pSSM, cItems);
521
522 LogFlow(("Storing %d items from queue %p\n", cItems, pQ));
523
524 /* Save queue data - only the bytes actually used (typically zero). */
525 for (i = pQ->rpos; cItems-- > 0; i = (i + 1) % pQ->cSize)
526 SSMR3PutU8(pSSM, pQ->abQueue[i]);
527}
528
529/**
530 * Load a queue state.
531 *
532 * @param pSSM SSM handle to read the state from.
533 * @param pQ Pointer to the queue.
534 *
535 * @return int VBox status/error code.
536 */
537static int ps2kLoadQueue(PSSMHANDLE pSSM, GeneriQ *pQ)
538{
539 /* On load, always put the read pointer at zero. */
540 int rc = SSMR3GetU32(pSSM, &pQ->cUsed);
541 AssertRCReturn(rc, rc);
542 LogFlow(("Loading %u items to queue %p\n", pQ->cUsed, pQ));
543 AssertMsgReturn(pQ->cUsed <= pQ->cSize, ("Saved size=%u, actual=%u\n", pQ->cUsed, pQ->cSize),
544 VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
545
546 /* Recalculate queue positions and load data in one go. */
547 pQ->rpos = 0;
548 pQ->wpos = pQ->cUsed;
549 rc = SSMR3GetMem(pSSM, pQ->abQueue, pQ->cUsed);
550
551 return rc;
552}
553
554#endif /* IN_RING3 */
555
556/**
557 * Retrieve a byte from a queue.
558 *
559 * @param pQ Pointer to the queue.
560 * @param pVal Pointer to storage for the byte.
561 *
562 * @return int VINF_TRY_AGAIN if queue is empty,
563 * VINF_SUCCESS if a byte was read.
564 */
565static int ps2kRemoveQueue(GeneriQ *pQ, uint8_t *pVal)
566{
567 int rc = VINF_TRY_AGAIN;
568
569 Assert(pVal);
570 if (pQ->cUsed)
571 {
572 *pVal = pQ->abQueue[pQ->rpos];
573 if (++pQ->rpos == pQ->cSize)
574 pQ->rpos = 0; /* Roll over. */
575 --pQ->cUsed;
576 rc = VINF_SUCCESS;
577 LogFlowFunc(("removed 0x%02X from queue %p\n", *pVal, pQ));
578 } else
579 LogFlowFunc(("queue %p empty\n", pQ));
580 return rc;
581}
582
583/* Convert encoded typematic value to milliseconds. Note that the values are rated
584 * with +/- 20% accuracy, so there's no need for high precision.
585 */
586static void ps2kSetupTypematic(PPS2K pThis, uint8_t val)
587{
588 int A, B;
589 unsigned period;
590
591 pThis->u8Typematic = val;
592 /* The delay is easy: (1 + value) * 250 ms */
593 pThis->uTypematicDelay = (1 + ((val >> 5) & 3)) * 250;
594 /* The rate is more complicated: (8 + A) * 2^B * 4.17 ms */
595 A = val & 7;
596 B = (val >> 3) & 3;
597 period = (8 + A) * (1 << B) * 417 / 100;
598 pThis->uTypematicRepeat = period;
599 Log(("Typematic delay %u ms, repeat period %u ms\n",
600 pThis->uTypematicDelay, pThis->uTypematicRepeat));
601}
602
603static void ps2kSetDefaults(PPS2K pThis)
604{
605 LogFlowFunc(("Set keyboard defaults\n"));
606 ps2kClearQueue((GeneriQ *)&pThis->keyQ);
607 /* Set default Scan Set 3 typematic values. */
608 /* Set default typematic rate/delay. */
609 ps2kSetupTypematic(pThis, KBD_DFL_RATE_DELAY);
610 /* Clear last typematic key?? */
611}
612
613/**
614 * Receive and process a byte sent by the keyboard controller.
615 *
616 * @param pThis The PS/2 keyboard instance data.
617 * @param cmd The command (or data) byte.
618 */
619int PS2KByteToKbd(PPS2K pThis, uint8_t cmd)
620{
621 bool fHandled = true;
622
623 LogFlowFunc(("new cmd=0x%02X, active cmd=0x%02X\n", cmd, pThis->u8CurrCmd));
624
625 switch (cmd)
626 {
627 case KCMD_ECHO:
628 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ECHO);
629 pThis->u8CurrCmd = 0;
630 break;
631 case KCMD_READ_ID:
632 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
633 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ID1);
634 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ID2);
635 pThis->u8CurrCmd = 0;
636 break;
637 case KCMD_ENABLE:
638 pThis->fScanning = true;
639 ps2kClearQueue((GeneriQ *)&pThis->keyQ);
640 /* Clear last typematic key?? */
641 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
642 pThis->u8CurrCmd = 0;
643 break;
644 case KCMD_DFLT_DISABLE:
645 pThis->fScanning = false;
646 ps2kSetDefaults(pThis);
647 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
648 pThis->u8CurrCmd = 0;
649 break;
650 case KCMD_SET_DEFAULT:
651 ps2kSetDefaults(pThis);
652 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
653 pThis->u8CurrCmd = 0;
654 break;
655 case KCMD_ALL_TYPEMATIC:
656 case KCMD_ALL_MK_BRK:
657 case KCMD_ALL_MAKE:
658 case KCMD_ALL_TMB:
659 ///@todo Set the key types here.
660 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
661 pThis->u8CurrCmd = 0;
662 break;
663 case KCMD_RESEND:
664 pThis->u8CurrCmd = 0;
665 break;
666 case KCMD_RESET:
667 pThis->u8ScanSet = 2;
668 ps2kSetDefaults(pThis);
669 ///@todo reset more?
670 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
671 pThis->u8CurrCmd = cmd;
672 /* Delay BAT completion; the test may take hundreds of ms. */
673 TMTimerSetMillies(pThis->CTX_SUFF(pKbdDelayTimer), 2);
674 break;
675 /* The following commands need a parameter. */
676 case KCMD_LEDS:
677 case KCMD_SCANSET:
678 case KCMD_RATE_DELAY:
679 case KCMD_TYPE_MATIC:
680 case KCMD_TYPE_MK_BRK:
681 case KCMD_TYPE_MAKE:
682 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
683 pThis->u8CurrCmd = cmd;
684 break;
685 default:
686 /* Sending a command instead of a parameter starts the new command. */
687 switch (pThis->u8CurrCmd)
688 {
689 case KCMD_LEDS:
690#ifndef IN_RING3
691 return VINF_IOM_R3_IOPORT_WRITE;
692#else
693 {
694 PDMKEYBLEDS enmLeds = PDMKEYBLEDS_NONE;
695
696 if (cmd & 0x01)
697 enmLeds = (PDMKEYBLEDS)(enmLeds | PDMKEYBLEDS_SCROLLLOCK);
698 if (cmd & 0x02)
699 enmLeds = (PDMKEYBLEDS)(enmLeds | PDMKEYBLEDS_NUMLOCK);
700 if (cmd & 0x04)
701 enmLeds = (PDMKEYBLEDS)(enmLeds | PDMKEYBLEDS_CAPSLOCK);
702 pThis->Keyboard.pDrv->pfnLedStatusChange(pThis->Keyboard.pDrv, enmLeds);
703 pThis->fNumLockOn = !!(cmd & 0x02); /* Sync internal Num Lock state. */
704 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
705 pThis->u8LEDs = cmd;
706 pThis->u8CurrCmd = 0;
707 }
708#endif
709 break;
710 case KCMD_SCANSET:
711 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
712 if (cmd == 0)
713 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, pThis->u8ScanSet);
714 else if (cmd < 4)
715 {
716 pThis->u8ScanSet = cmd;
717 LogRel(("PS2K: Selected scan set %d.\n", cmd));
718 }
719 /* Other values are simply ignored. */
720 pThis->u8CurrCmd = 0;
721 break;
722 case KCMD_RATE_DELAY:
723 ps2kSetupTypematic(pThis, cmd);
724 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_ACK);
725 pThis->u8CurrCmd = 0;
726 break;
727 default:
728 fHandled = false;
729 }
730 /* Fall through only to handle unrecognized commands. */
731 if (fHandled)
732 break;
733
734 case KCMD_INVALID_1:
735 case KCMD_INVALID_2:
736 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_RESEND);
737 pThis->u8CurrCmd = 0;
738 break;
739 }
740 LogFlowFunc(("Active cmd now 0x%02X; updating interrupts\n", pThis->u8CurrCmd));
741// KBCUpdateInterrupts(pThis->pParent);
742 return VINF_SUCCESS;
743}
744
745/**
746 * Send a byte (keystroke or command response) to the keyboard controller.
747 *
748 * @returns VINF_SUCCESS or VINF_TRY_AGAIN.
749 * @param pThis The PS/2 keyboard instance data.
750 * @param pb Where to return the byte we've read.
751 * @remarks Caller must have entered the device critical section.
752 */
753int PS2KByteFromKbd(PPS2K pThis, uint8_t *pb)
754{
755 int rc;
756
757 AssertPtr(pb);
758
759 /* Anything in the command queue has priority over data
760 * in the keystroke queue. Additionally, keystrokes are
761 * blocked if a command is currently in progress, even if
762 * the command queue is empty.
763 */
764 rc = ps2kRemoveQueue((GeneriQ *)&pThis->cmdQ, pb);
765 if (rc != VINF_SUCCESS && !pThis->u8CurrCmd && pThis->fScanning)
766 rc = ps2kRemoveQueue((GeneriQ *)&pThis->keyQ, pb);
767
768 LogFlowFunc(("keyboard sends 0x%02x (%svalid data)\n", *pb, rc == VINF_SUCCESS ? "" : "not "));
769 return rc;
770}
771
772#ifdef IN_RING3
773
774static int ps2kProcessKeyEvent(PPS2K pThis, uint8_t u8HidCode, bool fKeyDown)
775{
776 unsigned int i = 0;
777 key_def const *pKeyDef;
778 uint8_t abCodes[16];
779 uint8_t u8MakeCode;
780
781 LogFlowFunc(("key %s: 0x%02x (set %d)\n", fKeyDown ? "down" : "up", u8HidCode, pThis->u8ScanSet));
782
783 /* Find the key definition in somewhat sparse storage. */
784 pKeyDef = u8HidCode >= HID_MODIFIER_FIRST ? &aPS2ModKeys[u8HidCode - HID_MODIFIER_FIRST] : &aPS2Keys[u8HidCode];
785
786 /* Some keys are not processed at all; early return. */
787 if (pKeyDef->makeS1 == NONE)
788 {
789 LogFlow(("Skipping key processing.\n"));
790 return VINF_SUCCESS;
791 }
792
793 /* Handle modifier keys (Ctrl/Alt/Shift/GUI). We need to keep track
794 * of their state in addition to sending the scan code.
795 */
796 if (u8HidCode >= HID_MODIFIER_FIRST)
797 {
798 unsigned mod_bit = 1 << (u8HidCode - HID_MODIFIER_FIRST);
799
800 Assert((u8HidCode <= HID_MODIFIER_LAST));
801 if (fKeyDown)
802 pThis->u8Modifiers |= mod_bit;
803 else
804 pThis->u8Modifiers &= ~mod_bit;
805 }
806
807 /* Toggle NumLock state. */
808 if ((pKeyDef->keyFlags & KF_NL) && fKeyDown)
809 pThis->fNumLockOn ^= true;
810
811 if (pThis->u8ScanSet == 1 || pThis->u8ScanSet == 2)
812 {
813 /* The basic scan set 1 and 2 logic is the same, only the scan codes differ.
814 * Since scan set 2 is used almost all the time, that case is handled first.
815 */
816 abCodes[0] = 0;
817 if (fKeyDown)
818 {
819 /* Process key down event. */
820 if (pKeyDef->keyFlags & KF_PB)
821 {
822 /* Pause/Break sends different data if either Ctrl is held. */
823 if (pThis->u8Modifiers & (MOD_LCTRL | MOD_RCTRL))
824 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
825 "\xE0\x7E\xE0\xF0\x7E" : "\xE0\x46\xE0\xC6");
826 else
827 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
828 "\xE1\x14\x77\xE1\xF0\x14\xF0\x77" : "\xE1\x1D\x45\xE1\x9D\xC5");
829 }
830 else if (pKeyDef->keyFlags & KF_PS)
831 {
832 /* Print Screen depends on all of Ctrl, Shift, *and* Alt! */
833 if (pThis->u8Modifiers & (MOD_LALT | MOD_RALT))
834 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
835 "\x84" : "\x54");
836 else if (pThis->u8Modifiers & (MOD_LSHIFT | MOD_RSHIFT))
837 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
838 "\xE0\x7C" : "\xE0\x37");
839 else
840 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
841 "\xE0\x12\xE0\x7C" : "\xE0\x2A\xE0\x37");
842 }
843 else if (pKeyDef->keyFlags & (KF_GK | KF_NS))
844 {
845 /* The numeric pad keys fake Shift presses or releases
846 * depending on Num Lock and Shift key state. The '/'
847 * key behaves in a similar manner but does not depend on
848 * the Num Lock state.
849 */
850 if (!pThis->fNumLockOn || (pKeyDef->keyFlags & KF_NS))
851 {
852 if (pThis->u8Modifiers & MOD_LSHIFT)
853 strcat((char *)abCodes, pThis->u8ScanSet == 2 ?
854 "\xE0\xF0\x12" : "\xE0\xAA");
855 if (pThis->u8Modifiers & MOD_RSHIFT)
856 strcat((char *)abCodes, pThis->u8ScanSet == 2 ?
857 "\xE0\xF0\x59" : "\xE0\xB6");
858 }
859 else
860 {
861 Assert(pThis->fNumLockOn); /* Not for KF_NS! */
862 if ((pThis->u8Modifiers & (MOD_LSHIFT | MOD_RSHIFT)) == 0)
863 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
864 "\xE0\x12" : "\xE0\x2A");
865 /* Else Shift cancels NumLock, so no prefix! */
866 }
867 }
868 /* Feed the bytes to the queue if there is room. */
869 ///@todo check empty space!
870 while (abCodes[i])
871 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, abCodes[i++]);
872 Assert(i < sizeof(abCodes));
873
874 /* Standard processing for regular keys only. */
875 u8MakeCode = pThis->u8ScanSet == 2 ? pKeyDef->makeS2 : pKeyDef->makeS1;
876 if (!(pKeyDef->keyFlags & (KF_PB | KF_PS)))
877 {
878 if (pKeyDef->keyFlags & (KF_E0 | KF_GK | KF_NS))
879 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, 0xE0);
880 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, u8MakeCode);
881 }
882 }
883 else if (!(pKeyDef->keyFlags & (KF_NB | KF_PB)))
884 {
885 /* Process key up event except for keys which produce none. */
886
887 /* Handle Print Screen release. */
888 if (pKeyDef->keyFlags & KF_PS)
889 {
890 /* Undo faked Print Screen state as needed. */
891 if (pThis->u8Modifiers & (MOD_LALT | MOD_RALT))
892 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
893 "\xF0\x84" : "\xD4");
894 else if (pThis->u8Modifiers & (MOD_LSHIFT | MOD_RSHIFT))
895 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
896 "\xE0\xF0\x7C" : "\xE0\xB7");
897 else
898 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
899 "\xE0\xF0\x7C\xE0\xF0\x12" : "\xE0\xB7\xE0\xAA");
900 }
901 else
902 {
903 /* Process base scan code for less unusual keys. */
904 if (pKeyDef->keyFlags & (KF_E0 | KF_GK | KF_NS))
905 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, 0xE0);
906 if (pThis->u8ScanSet == 2) {
907 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, 0xF0);
908 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, pKeyDef->makeS2);
909 } else {
910 Assert(pThis->u8ScanSet == 1);
911 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, pKeyDef->makeS1 | 0x80);
912 }
913
914 /* Restore shift state for gray keys. */
915 if (pKeyDef->keyFlags & (KF_GK | KF_NS))
916 {
917 if (!pThis->fNumLockOn || (pKeyDef->keyFlags & KF_NS))
918 {
919 if (pThis->u8Modifiers & MOD_LSHIFT)
920 strcat((char *)abCodes, pThis->u8ScanSet == 2 ?
921 "\xE0\x12" : "\xE0\x2A");
922 if (pThis->u8Modifiers & MOD_RSHIFT)
923 strcat((char *)abCodes, pThis->u8ScanSet == 2 ?
924 "\xE0\x59" : "\xE0\x36");
925 }
926 else
927 {
928 Assert(pThis->fNumLockOn); /* Not for KF_NS! */
929 if ((pThis->u8Modifiers & (MOD_LSHIFT | MOD_RSHIFT)) == 0)
930 strcpy((char *)abCodes, pThis->u8ScanSet == 2 ?
931 "\xE0\xF0\x12" : "\xE0\xAA");
932 }
933 }
934 }
935
936 /* Feed any additional bytes to the queue if there is room. */
937 ///@todo check empty space!
938 while (abCodes[i])
939 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, abCodes[i++]);
940 Assert(i < sizeof(abCodes));
941 }
942 }
943 else
944 {
945 /* Handle Scan Set 3 - very straightforward. */
946 Assert(pThis->u8ScanSet == 3);
947 if (fKeyDown)
948 {
949 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, pKeyDef->makeS3);
950 }
951 else
952 {
953 /* Send a key release code unless it's a make only key. */
954 ///@todo Look up the current typematic setting, not the default!
955 if (pKeyDef->keyMatic != T_M)
956 {
957 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, 0xF0);
958 ps2kInsertQueue((GeneriQ *)&pThis->keyQ, pKeyDef->makeS3);
959 }
960 }
961 }
962
963 /* Set up or cancel typematic key repeat. */
964 if (fKeyDown)
965 {
966 if (pThis->u8TypematicKey != u8HidCode)
967 {
968 pThis->enmTypematicState = KBD_TMS_DELAY;
969 pThis->u8TypematicKey = u8HidCode;
970 TMTimerSetMillies(pThis->CTX_SUFF(pKbdTypematicTimer), pThis->uTypematicDelay);
971 Log(("Typematic delay %u ms, key %02X\n", pThis->uTypematicDelay, u8HidCode));
972 }
973 }
974 else
975 {
976 pThis->u8TypematicKey = 0;
977 pThis->enmTypematicState = KBD_TMS_IDLE;
978 ///@todo Cancel timer right away?
979 ///@todo Cancel timer before pushing key up code!?
980 }
981
982 /* Poke the KBC to update its state. */
983 KBCUpdateInterrupts(pThis->pParent);
984
985 return VINF_SUCCESS;
986}
987
988/* Timer handler for emulating typematic keys. Note that only the last key
989 * held down repeats (if typematic).
990 */
991static DECLCALLBACK(void) ps2kTypematicTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
992{
993 PPS2K pThis = (PS2K *)pvUser; NOREF(pDevIns);
994 LogFlowFunc(("Typematic state=%d, key %02X\n", pThis->enmTypematicState, pThis->u8TypematicKey));
995
996 /* If the current typematic key is zero, the repeat was canceled just when
997 * the timer was about to run. In that case, do nothing.
998 */
999 if (pThis->u8TypematicKey)
1000 {
1001 if (pThis->enmTypematicState == KBD_TMS_DELAY)
1002 pThis->enmTypematicState = KBD_TMS_REPEAT;
1003
1004 if (pThis->enmTypematicState == KBD_TMS_REPEAT)
1005 {
1006 ps2kProcessKeyEvent(pThis, pThis->u8TypematicKey, true /* Key down */ );
1007 TMTimerSetMillies(pThis->CTX_SUFF(pKbdTypematicTimer), pThis->uTypematicRepeat);
1008 }
1009 }
1010}
1011
1012/* The keyboard BAT is specified to take several hundred milliseconds. We need
1013 * to delay sending the result to the host for at least a tiny little while.
1014 */
1015static DECLCALLBACK(void) ps2kDelayTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
1016{
1017 PPS2K pThis = (PS2K *)pvUser; NOREF(pDevIns);
1018
1019 LogFlowFunc(("Delay timer: cmd %02X\n", pThis->u8CurrCmd));
1020
1021 Assert(pThis->u8CurrCmd == KCMD_RESET);
1022 ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, KRSP_BAT_OK);
1023 pThis->fScanning = true; /* BAT completion enables scanning! */
1024 pThis->u8CurrCmd = 0;
1025
1026 ///@todo Might want a PS2KCompleteCommand() to push last response, clear command, and kick the KBC...
1027 /* Give the KBC a kick. */
1028 KBCUpdateInterrupts(pThis->pParent);
1029}
1030
1031/* Release any and all currently depressed keys. Used whenever the guest keyboard
1032 * is likely to be out of sync with the host, such as when loading a saved state
1033 * or resuming a suspended host.
1034 */
1035static void ps2kReleaseKeys(PPS2K pThis)
1036{
1037 LogFlowFunc(("Releasing keys...\n"));
1038
1039 for (unsigned uKey = 0; uKey < sizeof(pThis->abDepressedKeys); ++uKey)
1040 if (pThis->abDepressedKeys[uKey])
1041 {
1042 ps2kProcessKeyEvent(pThis, uKey, false /* key up */);
1043 pThis->abDepressedKeys[uKey] = 0;
1044 }
1045 LogFlowFunc(("Done releasing keys\n"));
1046}
1047
1048
1049/**
1050 * Debug device info handler. Prints basic keyboard state.
1051 *
1052 * @param pDevIns Device instance which registered the info.
1053 * @param pHlp Callback functions for doing output.
1054 * @param pszArgs Argument string. Optional and specific to the handler.
1055 */
1056static DECLCALLBACK(void) ps2kInfoState(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
1057{
1058 PPS2K pThis = KBDGetPS2KFromDevIns(pDevIns);
1059 NOREF(pszArgs);
1060
1061 pHlp->pfnPrintf(pHlp, "PS/2 Keyboard: scan set %d, scanning %s\n",
1062 pThis->u8ScanSet, pThis->fScanning ? "enabled" : "disabled");
1063 pHlp->pfnPrintf(pHlp, "Active command %02X\n", pThis->u8CurrCmd);
1064 pHlp->pfnPrintf(pHlp, "LED state %02X, Num Lock %s\n", pThis->u8LEDs,
1065 pThis->fNumLockOn ? "on" : "off");
1066 pHlp->pfnPrintf(pHlp, "Typematic delay %ums, repeat period %ums\n",
1067 pThis->uTypematicDelay, pThis->uTypematicRepeat);
1068 pHlp->pfnPrintf(pHlp, "Command queue: %d items (%d max)\n",
1069 pThis->cmdQ.cUsed, pThis->cmdQ.cSize);
1070 pHlp->pfnPrintf(pHlp, "Input queue : %d items (%d max)\n",
1071 pThis->keyQ.cUsed, pThis->keyQ.cSize);
1072 if (pThis->enmTypematicState != KBD_TMS_IDLE)
1073 pHlp->pfnPrintf(pHlp, "Active typematic key %02X (%s)\n", pThis->u8Typematic,
1074 pThis->enmTypematicState == KBD_TMS_DELAY ? "delay" : "repeat");
1075}
1076
1077/* -=-=-=-=-=- Keyboard: IBase -=-=-=-=-=- */
1078
1079/**
1080 * @interface_method_impl{PDMIBASE,pfnQueryInterface}
1081 */
1082static DECLCALLBACK(void *) ps2kQueryInterface(PPDMIBASE pInterface, const char *pszIID)
1083{
1084 PPS2K pThis = RT_FROM_MEMBER(pInterface, PS2K, Keyboard.IBase);
1085 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->Keyboard.IBase);
1086 PDMIBASE_RETURN_INTERFACE(pszIID, PDMIKEYBOARDPORT, &pThis->Keyboard.IPort);
1087 return NULL;
1088}
1089
1090
1091/* -=-=-=-=-=- Keyboard: IKeyboardPort -=-=-=-=-=- */
1092
1093/**
1094 * Keyboard event handler.
1095 *
1096 * @returns VBox status code.
1097 * @param pThis The PS2 keyboard instance data.
1098 * @param u32Usage USB HID usage code with key
1099 * press/release flag.
1100 */
1101static int ps2kPutEventWorker(PPS2K pThis, uint32_t u32Usage)
1102{
1103 uint8_t u8HidCode;
1104 bool fKeyDown;
1105 bool fHaveEvent = true;
1106 int rc = VINF_SUCCESS;
1107
1108 /* Extract the usage code and ensure it's valid. */
1109 fKeyDown = !(u32Usage & 0x80000000);
1110 u8HidCode = u32Usage & 0xFF;
1111 AssertReturn(u8HidCode <= VBOX_USB_MAX_USAGE_CODE, VERR_INTERNAL_ERROR);
1112
1113 if (fKeyDown)
1114 {
1115 /* Due to host key repeat, we can get key events for keys which are
1116 * already depressed. We need to ignore those. */
1117 if (pThis->abDepressedKeys[u8HidCode])
1118 fHaveEvent = false;
1119 pThis->abDepressedKeys[u8HidCode] = 1;
1120 }
1121 else
1122 {
1123 /* NB: We allow key release events for keys which aren't depressed.
1124 * That is unlikely to happen and should not cause trouble.
1125 */
1126 pThis->abDepressedKeys[u8HidCode] = 0;
1127 }
1128
1129 /* Unless this is a new key press/release, don't even bother. */
1130 if (fHaveEvent)
1131 {
1132 rc = PDMCritSectEnter(pThis->pCritSectR3, VERR_SEM_BUSY);
1133 AssertReleaseRC(rc);
1134
1135 rc = ps2kProcessKeyEvent(pThis, u8HidCode, fKeyDown);
1136
1137 PDMCritSectLeave(pThis->pCritSectR3);
1138 }
1139
1140 return rc;
1141}
1142
1143static DECLCALLBACK(int) ps2kPutEventWrapper(PPDMIKEYBOARDPORT pInterface, uint32_t u32UsageCode)
1144{
1145 PPS2K pThis = RT_FROM_MEMBER(pInterface, PS2K, Keyboard.IPort);
1146 int rc;
1147
1148 LogFlowFunc(("key code %08X\n", u32UsageCode));
1149
1150 rc = PDMCritSectEnter(pThis->pCritSectR3, VERR_SEM_BUSY);
1151 AssertReleaseRC(rc);
1152
1153 /* The 'BAT fail' scancode is reused as a signal to release keys. No actual
1154 * key is allowed to use this scancode.
1155 */
1156 if (RT_UNLIKELY(u32UsageCode == KRSP_BAT_FAIL))
1157 {
1158 ps2kReleaseKeys(pThis);
1159 }
1160 else
1161 {
1162 ps2kPutEventWorker(pThis, u32UsageCode);
1163 }
1164
1165 PDMCritSectLeave(pThis->pCritSectR3);
1166
1167 return VINF_SUCCESS;
1168}
1169
1170
1171/**
1172 * Attach command.
1173 *
1174 * This is called to let the device attach to a driver for a
1175 * specified LUN.
1176 *
1177 * This is like plugging in the keyboard after turning on the
1178 * system.
1179 *
1180 * @returns VBox status code.
1181 * @param pThis The PS/2 keyboard instance data.
1182 * @param pDevIns The device instance.
1183 * @param iLUN The logical unit which is being detached.
1184 * @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
1185 */
1186int PS2KAttach(PPS2K pThis, PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags)
1187{
1188 int rc;
1189
1190 /* The LUN must be 0, i.e. keyboard. */
1191 Assert(iLUN == 0);
1192 AssertMsgReturn(fFlags & PDM_TACH_FLAGS_NOT_HOT_PLUG,
1193 ("PS/2 keyboard does not support hotplugging\n"),
1194 VERR_INVALID_PARAMETER);
1195
1196 LogFlowFunc(("iLUN=%d\n", iLUN));
1197
1198 rc = PDMDevHlpDriverAttach(pDevIns, iLUN, &pThis->Keyboard.IBase, &pThis->Keyboard.pDrvBase, "Keyboard Port");
1199 if (RT_SUCCESS(rc))
1200 {
1201 pThis->Keyboard.pDrv = PDMIBASE_QUERY_INTERFACE(pThis->Keyboard.pDrvBase, PDMIKEYBOARDCONNECTOR);
1202 if (!pThis->Keyboard.pDrv)
1203 {
1204 AssertLogRelMsgFailed(("LUN #0 doesn't have a keyboard interface! rc=%Rrc\n", rc));
1205 rc = VERR_PDM_MISSING_INTERFACE;
1206 }
1207 }
1208 else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
1209 {
1210 Log(("%s/%d: warning: no driver attached to LUN #0!\n", pDevIns->pReg->szName, pDevIns->iInstance));
1211 rc = VINF_SUCCESS;
1212 }
1213 else
1214 AssertLogRelMsgFailed(("Failed to attach LUN #0! rc=%Rrc\n", rc));
1215
1216 return rc;
1217}
1218
1219void PS2KSaveState(PPS2K pThis, PSSMHANDLE pSSM)
1220{
1221 uint32_t cPressed = 0;
1222 uint32_t cbTMSSize = 0;
1223
1224 LogFlowFunc(("Saving PS2K state\n"));
1225
1226 /* Save the basic keyboard state. */
1227 SSMR3PutU8(pSSM, pThis->u8CurrCmd);
1228 SSMR3PutU8(pSSM, pThis->u8LEDs);
1229 SSMR3PutU8(pSSM, pThis->u8Typematic);
1230 SSMR3PutU8(pSSM, pThis->u8TypematicKey);
1231 SSMR3PutU8(pSSM, pThis->u8Modifiers);
1232 SSMR3PutU8(pSSM, pThis->u8ScanSet);
1233 SSMR3PutU8(pSSM, pThis->enmTypematicState);
1234 SSMR3PutBool(pSSM, pThis->fNumLockOn);
1235 SSMR3PutBool(pSSM, pThis->fScanning);
1236
1237 /* Save the command and keystroke queues. */
1238 ps2kSaveQueue(pSSM, (GeneriQ *)&pThis->cmdQ);
1239 ps2kSaveQueue(pSSM, (GeneriQ *)&pThis->keyQ);
1240
1241 /* Save the command delay timer. Note that the typematic repeat
1242 * timer is *not* saved.
1243 */
1244 TMR3TimerSave(pThis->CTX_SUFF(pKbdDelayTimer), pSSM);
1245
1246 /* Save any pressed keys. This is necessary to avoid "stuck"
1247 * keys after a restore. Needs two passes.
1248 */
1249 for (unsigned i = 0; i < sizeof(pThis->abDepressedKeys); ++i)
1250 if (pThis->abDepressedKeys[i])
1251 ++cPressed;
1252
1253 SSMR3PutU32(pSSM, cPressed);
1254
1255 for (unsigned uKey = 0; uKey < sizeof(pThis->abDepressedKeys); ++uKey)
1256 if (pThis->abDepressedKeys[uKey])
1257 SSMR3PutU8(pSSM, uKey);
1258
1259 /* Save the typematic settings for Scan Set 3. */
1260 SSMR3PutU32(pSSM, cbTMSSize);
1261 /* Currently not implemented. */
1262}
1263
1264int PS2KLoadState(PPS2K pThis, PSSMHANDLE pSSM, uint32_t uVersion)
1265{
1266 uint8_t u8;
1267 uint32_t cPressed;
1268 uint32_t cbTMSSize;
1269 int rc;
1270
1271 NOREF(uVersion);
1272 LogFlowFunc(("Loading PS2K state version %u\n", uVersion));
1273
1274 /* Load the basic keyboard state. */
1275 SSMR3GetU8(pSSM, &pThis->u8CurrCmd);
1276 SSMR3GetU8(pSSM, &pThis->u8LEDs);
1277 SSMR3GetU8(pSSM, &pThis->u8Typematic);
1278 SSMR3GetU8(pSSM, &pThis->u8TypematicKey);
1279 SSMR3GetU8(pSSM, &pThis->u8Modifiers);
1280 SSMR3GetU8(pSSM, &pThis->u8ScanSet);
1281 SSMR3GetU8(pSSM, &u8);
1282 pThis->enmTypematicState = (tmatic_state_t)u8;
1283 SSMR3GetBool(pSSM, &pThis->fNumLockOn);
1284 SSMR3GetBool(pSSM, &pThis->fScanning);
1285
1286 /* Load the command and keystroke queues. */
1287 rc = ps2kLoadQueue(pSSM, (GeneriQ *)&pThis->cmdQ);
1288 AssertRCReturn(rc, rc);
1289 rc = ps2kLoadQueue(pSSM, (GeneriQ *)&pThis->keyQ);
1290 AssertRCReturn(rc, rc);
1291
1292 /* Load the command delay timer, just in case. */
1293 rc = TMR3TimerLoad(pThis->CTX_SUFF(pKbdDelayTimer), pSSM);
1294 AssertRCReturn(rc, rc);
1295
1296 /* Recalculate the typematic delay/rate. */
1297 ps2kSetupTypematic(pThis, pThis->u8Typematic);
1298
1299 /* Fake key up events for keys that were held down at the time the state was saved. */
1300 rc = SSMR3GetU32(pSSM, &cPressed);
1301 AssertRCReturn(rc, rc);
1302
1303 /* If any keys were down, load and then release them. */
1304 if (cPressed)
1305 {
1306 for (unsigned i = 0; i < cPressed; ++i)
1307 {
1308 rc = SSMR3GetU8(pSSM, &u8);
1309 AssertRCReturn(rc, rc);
1310 pThis->abDepressedKeys[u8] = 1;
1311 }
1312 }
1313
1314 /* Load typematic settings for Scan Set 3. */
1315 rc = SSMR3GetU32(pSSM, &cbTMSSize);
1316 AssertRCReturn(rc, rc);
1317
1318 while (cbTMSSize--)
1319 {
1320 rc = SSMR3GetU8(pSSM, &u8);
1321 AssertRCReturn(rc, rc);
1322 }
1323
1324 return rc;
1325}
1326
1327int PS2KLoadDone(PPS2K pThis, PSSMHANDLE pSSM)
1328{
1329 /* This *must* be done after the inital load because it may trigger
1330 * interrupts and change the interrupt controller state.
1331 */
1332 ps2kReleaseKeys(pThis);
1333 return VINF_SUCCESS;
1334}
1335
1336void PS2KReset(PPS2K pThis)
1337{
1338 LogFlowFunc(("Resetting PS2K\n"));
1339
1340 pThis->fScanning = true;
1341 pThis->u8ScanSet = 2;
1342 pThis->u8CurrCmd = 0;
1343 pThis->u8Modifiers = 0;
1344 pThis->u8TypematicKey = 0;
1345 pThis->enmTypematicState = KBD_TMS_IDLE;
1346
1347 /* Clear queues and any pressed keys. */
1348 memset(pThis->abDepressedKeys, 0, sizeof(pThis->abDepressedKeys));
1349 ps2kClearQueue((GeneriQ *)&pThis->cmdQ);
1350 ps2kSetDefaults(pThis); /* Also clears keystroke queue. */
1351
1352 /* Activate the PS/2 keyboard by default. */
1353 if (pThis->Keyboard.pDrv)
1354 pThis->Keyboard.pDrv->pfnSetActive(pThis->Keyboard.pDrv, true);
1355}
1356
1357void PS2KRelocate(PPS2K pThis, RTGCINTPTR offDelta, PPDMDEVINS pDevIns)
1358{
1359 LogFlowFunc(("Relocating PS2K\n"));
1360 pThis->pKbdDelayTimerRC = TMTimerRCPtr(pThis->pKbdDelayTimerR3);
1361 pThis->pKbdTypematicTimerRC = TMTimerRCPtr(pThis->pKbdTypematicTimerR3);
1362 NOREF(offDelta);
1363}
1364
1365int PS2KConstruct(PPS2K pThis, PPDMDEVINS pDevIns, void *pParent, int iInstance)
1366{
1367 int rc;
1368
1369 LogFlowFunc(("iInstance=%d\n", iInstance));
1370
1371 pThis->pParent = pParent;
1372
1373 /* Initialize the queues. */
1374 pThis->keyQ.cSize = KBD_KEY_QUEUE_SIZE;
1375 pThis->cmdQ.cSize = KBD_CMD_QUEUE_SIZE;
1376
1377 pThis->Keyboard.IBase.pfnQueryInterface = ps2kQueryInterface;
1378 pThis->Keyboard.IPort.pfnPutEventHid = ps2kPutEventWrapper;
1379
1380 /*
1381 * Initialize the critical section pointer(s).
1382 */
1383 pThis->pCritSectR3 = pDevIns->pCritSectRoR3;
1384
1385 /*
1386 * Create the typematic delay/repeat timer. Does not use virtual time!
1387 */
1388 PTMTIMER pTimer;
1389 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_REAL, ps2kTypematicTimer, pThis,
1390 TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "PS2K Typematic Timer", &pTimer);
1391 if (RT_FAILURE(rc))
1392 return rc;
1393
1394 pThis->pKbdTypematicTimerR3 = pTimer;
1395 pThis->pKbdTypematicTimerR0 = TMTimerR0Ptr(pTimer);
1396 pThis->pKbdTypematicTimerRC = TMTimerRCPtr(pTimer);
1397
1398 /*
1399 * Create the command delay timer.
1400 */
1401 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, ps2kDelayTimer, pThis,
1402 TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "PS2K Delay Timer", &pTimer);
1403 if (RT_FAILURE(rc))
1404 return rc;
1405
1406 pThis->pKbdDelayTimerR3 = pTimer;
1407 pThis->pKbdDelayTimerR0 = TMTimerR0Ptr(pTimer);
1408 pThis->pKbdDelayTimerRC = TMTimerRCPtr(pTimer);
1409
1410 /*
1411 * Register debugger info callbacks.
1412 */
1413 PDMDevHlpDBGFInfoRegister(pDevIns, "ps2k", "Display PS/2 keyboard state.", ps2kInfoState);
1414
1415 return rc;
1416}
1417
1418#endif
1419
1420///@todo The following should live with the KBC implementation.
1421
1422/* Table used by the keyboard controller to optionally translate the incoming
1423 * keyboard data. Note that the translation is designed for essentially taking
1424 * Scan Set 2 input and producing Scan Set 1 output, but can be turned on and
1425 * off regardless of what the keyboard is sending.
1426 */
1427static uint8_t aAT2PC[128] = {
1428 0xff,0x43,0x41,0x3f,0x3d,0x3b,0x3c,0x58,0x64,0x44,0x42,0x40,0x3e,0x0f,0x29,0x59,
1429 0x65,0x38,0x2a,0x70,0x1d,0x10,0x02,0x5a,0x66,0x71,0x2c,0x1f,0x1e,0x11,0x03,0x5b,
1430 0x67,0x2e,0x2d,0x20,0x12,0x05,0x04,0x5c,0x68,0x39,0x2f,0x21,0x14,0x13,0x06,0x5d,
1431 0x69,0x31,0x30,0x23,0x22,0x15,0x07,0x5e,0x6a,0x72,0x32,0x24,0x16,0x08,0x09,0x5f,
1432 0x6b,0x33,0x25,0x17,0x18,0x0b,0x0a,0x60,0x6c,0x34,0x35,0x26,0x27,0x19,0x0c,0x61,
1433 0x6d,0x73,0x28,0x74,0x1a,0x0d,0x62,0x6e,0x3a,0x36,0x1c,0x1b,0x75,0x2b,0x63,0x76,
1434 0x55,0x56,0x77,0x78,0x79,0x7a,0x0e,0x7b,0x7c,0x4f,0x7d,0x4b,0x47,0x7e,0x7f,0x6f,
1435 0x52,0x53,0x50,0x4c,0x4d,0x48,0x01,0x45,0x57,0x4e,0x51,0x4a,0x37,0x49,0x46,0x54
1436};
1437
1438/**
1439 * Convert an AT (Scan Set 2) scancode to PC (Scan Set 1).
1440 *
1441 * @param state Current state of the translator
1442 * (xlat_state_t).
1443 * @param scanIn Incoming scan code.
1444 * @param pScanOut Pointer to outgoing scan code. The
1445 * contents are only valid if returned
1446 * state is not XS_BREAK.
1447 *
1448 * @return xlat_state_t New state of the translator.
1449 */
1450int32_t XlateAT2PC(int32_t state, uint8_t scanIn, uint8_t *pScanOut)
1451{
1452 uint8_t scan_in;
1453 uint8_t scan_out;
1454
1455 Assert(pScanOut);
1456 Assert(state == XS_IDLE || state == XS_BREAK || state == XS_HIBIT);
1457
1458 /* Preprocess the scan code for a 128-entry translation table. */
1459 if (scanIn == 0x83) /* Check for F7 key. */
1460 scan_in = 0x02;
1461 else if (scanIn == 0x84) /* Check for SysRq key. */
1462 scan_in = 0x7f;
1463 else
1464 scan_in = scanIn;
1465
1466 /* Values 0x80 and above are passed through, except for 0xF0
1467 * which indicates a key release.
1468 */
1469 if (scan_in < 0x80)
1470 {
1471 scan_out = aAT2PC[scan_in];
1472 /* Turn into break code if required. */
1473 if (state == XS_BREAK || state == XS_HIBIT)
1474 scan_out |= 0x80;
1475
1476 state = XS_IDLE;
1477 }
1478 else
1479 {
1480 /* NB: F0 E0 10 will be translated to E0 E5 (high bit set on last byte)! */
1481 if (scan_in == 0xF0) /* Check for break code. */
1482 state = XS_BREAK;
1483 else if (state == XS_BREAK)
1484 state = XS_HIBIT; /* Remember the break bit. */
1485 scan_out = scan_in;
1486 }
1487 LogFlowFunc(("scan code %02X translated to %02X; new state is %d\n",
1488 scanIn, scan_out, state));
1489
1490 *pScanOut = scan_out;
1491 return state;
1492}
1493
1494#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette