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80cabfad FB |
1 | /* |
2 | * QEMU PC keyboard emulation | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
80cabfad FB |
24 | #include "vl.h" |
25 | ||
26 | /* debug PC keyboard */ | |
27 | //#define DEBUG_KBD | |
28 | ||
29 | /* debug PC keyboard : only mouse */ | |
30 | //#define DEBUG_MOUSE | |
31 | ||
32 | /* Keyboard Controller Commands */ | |
33 | #define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */ | |
34 | #define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */ | |
35 | #define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */ | |
36 | #define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */ | |
37 | #define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */ | |
38 | #define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */ | |
39 | #define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */ | |
40 | #define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */ | |
41 | #define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */ | |
42 | #define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */ | |
43 | #define KBD_CCMD_READ_INPORT 0xC0 /* read input port */ | |
44 | #define KBD_CCMD_READ_OUTPORT 0xD0 /* read output port */ | |
45 | #define KBD_CCMD_WRITE_OUTPORT 0xD1 /* write output port */ | |
46 | #define KBD_CCMD_WRITE_OBUF 0xD2 | |
47 | #define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if | |
48 | initiated by the auxiliary device */ | |
49 | #define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */ | |
50 | #define KBD_CCMD_DISABLE_A20 0xDD /* HP vectra only ? */ | |
51 | #define KBD_CCMD_ENABLE_A20 0xDF /* HP vectra only ? */ | |
52 | #define KBD_CCMD_RESET 0xFE | |
53 | ||
54 | /* Keyboard Commands */ | |
55 | #define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */ | |
56 | #define KBD_CMD_ECHO 0xEE | |
57 | #define KBD_CMD_GET_ID 0xF2 /* get keyboard ID */ | |
58 | #define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */ | |
59 | #define KBD_CMD_ENABLE 0xF4 /* Enable scanning */ | |
60 | #define KBD_CMD_RESET_DISABLE 0xF5 /* reset and disable scanning */ | |
61 | #define KBD_CMD_RESET_ENABLE 0xF6 /* reset and enable scanning */ | |
62 | #define KBD_CMD_RESET 0xFF /* Reset */ | |
63 | ||
64 | /* Keyboard Replies */ | |
65 | #define KBD_REPLY_POR 0xAA /* Power on reset */ | |
66 | #define KBD_REPLY_ACK 0xFA /* Command ACK */ | |
67 | #define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */ | |
68 | ||
69 | /* Status Register Bits */ | |
70 | #define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */ | |
71 | #define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ | |
72 | #define KBD_STAT_SELFTEST 0x04 /* Self test successful */ | |
73 | #define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */ | |
74 | #define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */ | |
75 | #define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */ | |
76 | #define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */ | |
77 | #define KBD_STAT_PERR 0x80 /* Parity error */ | |
78 | ||
79 | /* Controller Mode Register Bits */ | |
80 | #define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */ | |
81 | #define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */ | |
82 | #define KBD_MODE_SYS 0x04 /* The system flag (?) */ | |
83 | #define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */ | |
84 | #define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */ | |
85 | #define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */ | |
86 | #define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */ | |
87 | #define KBD_MODE_RFU 0x80 | |
88 | ||
89 | /* Mouse Commands */ | |
90 | #define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */ | |
91 | #define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */ | |
92 | #define AUX_SET_RES 0xE8 /* Set resolution */ | |
93 | #define AUX_GET_SCALE 0xE9 /* Get scaling factor */ | |
94 | #define AUX_SET_STREAM 0xEA /* Set stream mode */ | |
95 | #define AUX_POLL 0xEB /* Poll */ | |
96 | #define AUX_RESET_WRAP 0xEC /* Reset wrap mode */ | |
97 | #define AUX_SET_WRAP 0xEE /* Set wrap mode */ | |
98 | #define AUX_SET_REMOTE 0xF0 /* Set remote mode */ | |
99 | #define AUX_GET_TYPE 0xF2 /* Get type */ | |
100 | #define AUX_SET_SAMPLE 0xF3 /* Set sample rate */ | |
101 | #define AUX_ENABLE_DEV 0xF4 /* Enable aux device */ | |
102 | #define AUX_DISABLE_DEV 0xF5 /* Disable aux device */ | |
103 | #define AUX_SET_DEFAULT 0xF6 | |
104 | #define AUX_RESET 0xFF /* Reset aux device */ | |
105 | #define AUX_ACK 0xFA /* Command byte ACK. */ | |
106 | ||
107 | #define MOUSE_STATUS_REMOTE 0x40 | |
108 | #define MOUSE_STATUS_ENABLED 0x20 | |
109 | #define MOUSE_STATUS_SCALE21 0x10 | |
110 | ||
111 | #define KBD_QUEUE_SIZE 256 | |
112 | ||
113 | typedef struct { | |
6f51f6b5 | 114 | uint8_t aux[KBD_QUEUE_SIZE]; |
80cabfad FB |
115 | uint8_t data[KBD_QUEUE_SIZE]; |
116 | int rptr, wptr, count; | |
117 | } KBDQueue; | |
118 | ||
119 | typedef struct KBDState { | |
6f51f6b5 | 120 | KBDQueue queue; |
80cabfad FB |
121 | uint8_t write_cmd; /* if non zero, write data to port 60 is expected */ |
122 | uint8_t status; | |
123 | uint8_t mode; | |
124 | /* keyboard state */ | |
125 | int kbd_write_cmd; | |
126 | int scan_enabled; | |
127 | /* mouse state */ | |
128 | int mouse_write_cmd; | |
129 | uint8_t mouse_status; | |
130 | uint8_t mouse_resolution; | |
131 | uint8_t mouse_sample_rate; | |
132 | uint8_t mouse_wrap; | |
133 | uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */ | |
134 | uint8_t mouse_detect_state; | |
135 | int mouse_dx; /* current values, needed for 'poll' mode */ | |
136 | int mouse_dy; | |
137 | int mouse_dz; | |
138 | uint8_t mouse_buttons; | |
139 | } KBDState; | |
140 | ||
141 | KBDState kbd_state; | |
142 | int reset_requested; | |
143 | ||
144 | /* update irq and KBD_STAT_[MOUSE_]OBF */ | |
145 | /* XXX: not generating the irqs if KBD_MODE_DISABLE_KBD is set may be | |
146 | incorrect, but it avoids having to simulate exact delays */ | |
147 | static void kbd_update_irq(KBDState *s) | |
148 | { | |
6f51f6b5 | 149 | KBDQueue *q = &s->queue; |
80cabfad FB |
150 | int irq12_level, irq1_level; |
151 | ||
152 | irq1_level = 0; | |
153 | irq12_level = 0; | |
154 | s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF); | |
6f51f6b5 | 155 | if (q->count != 0) { |
80cabfad | 156 | s->status |= KBD_STAT_OBF; |
6f51f6b5 | 157 | if (q->aux[q->rptr]) { |
80cabfad FB |
158 | s->status |= KBD_STAT_MOUSE_OBF; |
159 | if (s->mode & KBD_MODE_MOUSE_INT) | |
160 | irq12_level = 1; | |
161 | } else { | |
162 | if ((s->mode & KBD_MODE_KBD_INT) && | |
163 | !(s->mode & KBD_MODE_DISABLE_KBD)) | |
164 | irq1_level = 1; | |
165 | } | |
166 | } | |
167 | pic_set_irq(1, irq1_level); | |
168 | pic_set_irq(12, irq12_level); | |
169 | } | |
170 | ||
171 | static void kbd_queue(KBDState *s, int b, int aux) | |
172 | { | |
6f51f6b5 | 173 | KBDQueue *q = &s->queue; |
80cabfad FB |
174 | |
175 | #if defined(DEBUG_MOUSE) || defined(DEBUG_KBD) | |
176 | if (aux) | |
177 | printf("mouse event: 0x%02x\n", b); | |
178 | #ifdef DEBUG_KBD | |
179 | else | |
180 | printf("kbd event: 0x%02x\n", b); | |
181 | #endif | |
182 | #endif | |
183 | if (q->count >= KBD_QUEUE_SIZE) | |
184 | return; | |
6f51f6b5 | 185 | q->aux[q->wptr] = aux; |
80cabfad FB |
186 | q->data[q->wptr] = b; |
187 | if (++q->wptr == KBD_QUEUE_SIZE) | |
188 | q->wptr = 0; | |
189 | q->count++; | |
190 | kbd_update_irq(s); | |
191 | } | |
192 | ||
63066f4f | 193 | static void pc_kbd_put_keycode(void *opaque, int keycode) |
80cabfad | 194 | { |
63066f4f | 195 | KBDState *s = opaque; |
80cabfad FB |
196 | kbd_queue(s, keycode, 0); |
197 | } | |
198 | ||
b41a2cd1 | 199 | static uint32_t kbd_read_status(void *opaque, uint32_t addr) |
80cabfad | 200 | { |
b41a2cd1 | 201 | KBDState *s = opaque; |
80cabfad FB |
202 | int val; |
203 | val = s->status; | |
204 | #if defined(DEBUG_KBD) | |
205 | printf("kbd: read status=0x%02x\n", val); | |
206 | #endif | |
207 | return val; | |
208 | } | |
209 | ||
b41a2cd1 | 210 | static void kbd_write_command(void *opaque, uint32_t addr, uint32_t val) |
80cabfad | 211 | { |
b41a2cd1 | 212 | KBDState *s = opaque; |
80cabfad FB |
213 | |
214 | #ifdef DEBUG_KBD | |
215 | printf("kbd: write cmd=0x%02x\n", val); | |
216 | #endif | |
217 | switch(val) { | |
218 | case KBD_CCMD_READ_MODE: | |
219 | kbd_queue(s, s->mode, 0); | |
220 | break; | |
221 | case KBD_CCMD_WRITE_MODE: | |
222 | case KBD_CCMD_WRITE_OBUF: | |
223 | case KBD_CCMD_WRITE_AUX_OBUF: | |
224 | case KBD_CCMD_WRITE_MOUSE: | |
225 | case KBD_CCMD_WRITE_OUTPORT: | |
226 | s->write_cmd = val; | |
227 | break; | |
228 | case KBD_CCMD_MOUSE_DISABLE: | |
229 | s->mode |= KBD_MODE_DISABLE_MOUSE; | |
230 | break; | |
231 | case KBD_CCMD_MOUSE_ENABLE: | |
232 | s->mode &= ~KBD_MODE_DISABLE_MOUSE; | |
233 | break; | |
234 | case KBD_CCMD_TEST_MOUSE: | |
235 | kbd_queue(s, 0x00, 0); | |
236 | break; | |
237 | case KBD_CCMD_SELF_TEST: | |
238 | s->status |= KBD_STAT_SELFTEST; | |
239 | kbd_queue(s, 0x55, 0); | |
240 | break; | |
241 | case KBD_CCMD_KBD_TEST: | |
242 | kbd_queue(s, 0x00, 0); | |
243 | break; | |
244 | case KBD_CCMD_KBD_DISABLE: | |
245 | s->mode |= KBD_MODE_DISABLE_KBD; | |
246 | kbd_update_irq(s); | |
247 | break; | |
248 | case KBD_CCMD_KBD_ENABLE: | |
249 | s->mode &= ~KBD_MODE_DISABLE_KBD; | |
250 | kbd_update_irq(s); | |
251 | break; | |
252 | case KBD_CCMD_READ_INPORT: | |
253 | kbd_queue(s, 0x00, 0); | |
254 | break; | |
255 | case KBD_CCMD_READ_OUTPORT: | |
256 | /* XXX: check that */ | |
257 | #ifdef TARGET_I386 | |
258 | val = 0x01 | (((cpu_single_env->a20_mask >> 20) & 1) << 1); | |
259 | #else | |
260 | val = 0x01; | |
261 | #endif | |
262 | if (s->status & KBD_STAT_OBF) | |
263 | val |= 0x10; | |
264 | if (s->status & KBD_STAT_MOUSE_OBF) | |
265 | val |= 0x20; | |
266 | kbd_queue(s, val, 0); | |
267 | break; | |
268 | #ifdef TARGET_I386 | |
269 | case KBD_CCMD_ENABLE_A20: | |
b41a2cd1 | 270 | cpu_x86_set_a20(cpu_single_env, 1); |
80cabfad FB |
271 | break; |
272 | case KBD_CCMD_DISABLE_A20: | |
b41a2cd1 | 273 | cpu_x86_set_a20(cpu_single_env, 0); |
80cabfad FB |
274 | break; |
275 | #endif | |
276 | case KBD_CCMD_RESET: | |
277 | reset_requested = 1; | |
278 | cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); | |
279 | break; | |
280 | case 0xff: | |
281 | /* ignore that - I don't know what is its use */ | |
282 | break; | |
283 | default: | |
284 | fprintf(stderr, "qemu: unsupported keyboard cmd=0x%02x\n", val); | |
285 | break; | |
286 | } | |
287 | } | |
288 | ||
b41a2cd1 | 289 | static uint32_t kbd_read_data(void *opaque, uint32_t addr) |
80cabfad | 290 | { |
b41a2cd1 | 291 | KBDState *s = opaque; |
80cabfad | 292 | KBDQueue *q; |
6f51f6b5 | 293 | int val, index, aux; |
80cabfad | 294 | |
6f51f6b5 | 295 | q = &s->queue; |
80cabfad FB |
296 | if (q->count == 0) { |
297 | /* NOTE: if no data left, we return the last keyboard one | |
298 | (needed for EMM386) */ | |
299 | /* XXX: need a timer to do things correctly */ | |
80cabfad FB |
300 | index = q->rptr - 1; |
301 | if (index < 0) | |
302 | index = KBD_QUEUE_SIZE - 1; | |
303 | val = q->data[index]; | |
304 | } else { | |
6f51f6b5 | 305 | aux = q->aux[q->rptr]; |
80cabfad FB |
306 | val = q->data[q->rptr]; |
307 | if (++q->rptr == KBD_QUEUE_SIZE) | |
308 | q->rptr = 0; | |
309 | q->count--; | |
310 | /* reading deasserts IRQ */ | |
6f51f6b5 | 311 | if (aux) |
80cabfad | 312 | pic_set_irq(12, 0); |
6f51f6b5 FB |
313 | else |
314 | pic_set_irq(1, 0); | |
80cabfad FB |
315 | } |
316 | /* reassert IRQs if data left */ | |
317 | kbd_update_irq(s); | |
318 | #ifdef DEBUG_KBD | |
319 | printf("kbd: read data=0x%02x\n", val); | |
320 | #endif | |
321 | return val; | |
322 | } | |
323 | ||
324 | static void kbd_reset_keyboard(KBDState *s) | |
325 | { | |
326 | s->scan_enabled = 1; | |
327 | } | |
328 | ||
329 | static void kbd_write_keyboard(KBDState *s, int val) | |
330 | { | |
331 | switch(s->kbd_write_cmd) { | |
332 | default: | |
333 | case -1: | |
334 | switch(val) { | |
335 | case 0x00: | |
336 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
337 | break; | |
338 | case 0x05: | |
339 | kbd_queue(s, KBD_REPLY_RESEND, 0); | |
340 | break; | |
341 | case KBD_CMD_GET_ID: | |
342 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
343 | kbd_queue(s, 0xab, 0); | |
344 | kbd_queue(s, 0x83, 0); | |
345 | break; | |
346 | case KBD_CMD_ECHO: | |
347 | kbd_queue(s, KBD_CMD_ECHO, 0); | |
348 | break; | |
349 | case KBD_CMD_ENABLE: | |
350 | s->scan_enabled = 1; | |
351 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
352 | break; | |
353 | case KBD_CMD_SET_LEDS: | |
354 | case KBD_CMD_SET_RATE: | |
355 | s->kbd_write_cmd = val; | |
356 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
357 | break; | |
358 | case KBD_CMD_RESET_DISABLE: | |
359 | kbd_reset_keyboard(s); | |
360 | s->scan_enabled = 0; | |
361 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
362 | break; | |
363 | case KBD_CMD_RESET_ENABLE: | |
364 | kbd_reset_keyboard(s); | |
365 | s->scan_enabled = 1; | |
366 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
367 | break; | |
368 | case KBD_CMD_RESET: | |
369 | kbd_reset_keyboard(s); | |
370 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
371 | kbd_queue(s, KBD_REPLY_POR, 0); | |
372 | break; | |
373 | default: | |
374 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
375 | break; | |
376 | } | |
377 | break; | |
378 | case KBD_CMD_SET_LEDS: | |
379 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
380 | s->kbd_write_cmd = -1; | |
381 | break; | |
382 | case KBD_CMD_SET_RATE: | |
383 | kbd_queue(s, KBD_REPLY_ACK, 0); | |
384 | s->kbd_write_cmd = -1; | |
385 | break; | |
386 | } | |
387 | } | |
388 | ||
389 | static void kbd_mouse_send_packet(KBDState *s) | |
390 | { | |
391 | unsigned int b; | |
392 | int dx1, dy1, dz1; | |
393 | ||
394 | dx1 = s->mouse_dx; | |
395 | dy1 = s->mouse_dy; | |
396 | dz1 = s->mouse_dz; | |
397 | /* XXX: increase range to 8 bits ? */ | |
398 | if (dx1 > 127) | |
399 | dx1 = 127; | |
400 | else if (dx1 < -127) | |
401 | dx1 = -127; | |
402 | if (dy1 > 127) | |
403 | dy1 = 127; | |
404 | else if (dy1 < -127) | |
405 | dy1 = -127; | |
406 | b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07); | |
407 | kbd_queue(s, b, 1); | |
408 | kbd_queue(s, dx1 & 0xff, 1); | |
409 | kbd_queue(s, dy1 & 0xff, 1); | |
410 | /* extra byte for IMPS/2 or IMEX */ | |
411 | switch(s->mouse_type) { | |
412 | default: | |
413 | break; | |
414 | case 3: | |
415 | if (dz1 > 127) | |
416 | dz1 = 127; | |
417 | else if (dz1 < -127) | |
418 | dz1 = -127; | |
419 | kbd_queue(s, dz1 & 0xff, 1); | |
420 | break; | |
421 | case 4: | |
422 | if (dz1 > 7) | |
423 | dz1 = 7; | |
424 | else if (dz1 < -7) | |
425 | dz1 = -7; | |
426 | b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1); | |
427 | kbd_queue(s, b, 1); | |
428 | break; | |
429 | } | |
430 | ||
431 | /* update deltas */ | |
432 | s->mouse_dx -= dx1; | |
433 | s->mouse_dy -= dy1; | |
434 | s->mouse_dz -= dz1; | |
435 | } | |
436 | ||
63066f4f FB |
437 | static void pc_kbd_mouse_event(void *opaque, |
438 | int dx, int dy, int dz, int buttons_state) | |
80cabfad | 439 | { |
63066f4f | 440 | KBDState *s = opaque; |
80cabfad FB |
441 | |
442 | /* check if deltas are recorded when disabled */ | |
443 | if (!(s->mouse_status & MOUSE_STATUS_ENABLED)) | |
444 | return; | |
445 | ||
446 | s->mouse_dx += dx; | |
447 | s->mouse_dy -= dy; | |
448 | s->mouse_dz += dz; | |
92cb7d54 FB |
449 | /* XXX: SDL sometimes generates nul events: we delete them */ |
450 | if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 && | |
451 | s->mouse_buttons == buttons_state) | |
452 | return; | |
80cabfad FB |
453 | s->mouse_buttons = buttons_state; |
454 | ||
455 | if (!(s->mouse_status & MOUSE_STATUS_REMOTE) && | |
6f51f6b5 | 456 | (s->queue.count < (KBD_QUEUE_SIZE - 16))) { |
80cabfad FB |
457 | for(;;) { |
458 | /* if not remote, send event. Multiple events are sent if | |
459 | too big deltas */ | |
460 | kbd_mouse_send_packet(s); | |
461 | if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0) | |
462 | break; | |
463 | } | |
464 | } | |
465 | } | |
466 | ||
467 | static void kbd_write_mouse(KBDState *s, int val) | |
468 | { | |
469 | #ifdef DEBUG_MOUSE | |
470 | printf("kbd: write mouse 0x%02x\n", val); | |
471 | #endif | |
472 | switch(s->mouse_write_cmd) { | |
473 | default: | |
474 | case -1: | |
475 | /* mouse command */ | |
476 | if (s->mouse_wrap) { | |
477 | if (val == AUX_RESET_WRAP) { | |
478 | s->mouse_wrap = 0; | |
479 | kbd_queue(s, AUX_ACK, 1); | |
480 | return; | |
481 | } else if (val != AUX_RESET) { | |
482 | kbd_queue(s, val, 1); | |
483 | return; | |
484 | } | |
485 | } | |
486 | switch(val) { | |
487 | case AUX_SET_SCALE11: | |
488 | s->mouse_status &= ~MOUSE_STATUS_SCALE21; | |
489 | kbd_queue(s, AUX_ACK, 1); | |
490 | break; | |
491 | case AUX_SET_SCALE21: | |
492 | s->mouse_status |= MOUSE_STATUS_SCALE21; | |
493 | kbd_queue(s, AUX_ACK, 1); | |
494 | break; | |
495 | case AUX_SET_STREAM: | |
496 | s->mouse_status &= ~MOUSE_STATUS_REMOTE; | |
497 | kbd_queue(s, AUX_ACK, 1); | |
498 | break; | |
499 | case AUX_SET_WRAP: | |
500 | s->mouse_wrap = 1; | |
501 | kbd_queue(s, AUX_ACK, 1); | |
502 | break; | |
503 | case AUX_SET_REMOTE: | |
504 | s->mouse_status |= MOUSE_STATUS_REMOTE; | |
505 | kbd_queue(s, AUX_ACK, 1); | |
506 | break; | |
507 | case AUX_GET_TYPE: | |
508 | kbd_queue(s, AUX_ACK, 1); | |
509 | kbd_queue(s, s->mouse_type, 1); | |
510 | break; | |
511 | case AUX_SET_RES: | |
512 | case AUX_SET_SAMPLE: | |
513 | s->mouse_write_cmd = val; | |
514 | kbd_queue(s, AUX_ACK, 1); | |
515 | break; | |
516 | case AUX_GET_SCALE: | |
517 | kbd_queue(s, AUX_ACK, 1); | |
518 | kbd_queue(s, s->mouse_status, 1); | |
519 | kbd_queue(s, s->mouse_resolution, 1); | |
520 | kbd_queue(s, s->mouse_sample_rate, 1); | |
521 | break; | |
522 | case AUX_POLL: | |
523 | kbd_queue(s, AUX_ACK, 1); | |
524 | kbd_mouse_send_packet(s); | |
525 | break; | |
526 | case AUX_ENABLE_DEV: | |
527 | s->mouse_status |= MOUSE_STATUS_ENABLED; | |
528 | kbd_queue(s, AUX_ACK, 1); | |
529 | break; | |
530 | case AUX_DISABLE_DEV: | |
531 | s->mouse_status &= ~MOUSE_STATUS_ENABLED; | |
532 | kbd_queue(s, AUX_ACK, 1); | |
533 | break; | |
534 | case AUX_SET_DEFAULT: | |
535 | s->mouse_sample_rate = 100; | |
536 | s->mouse_resolution = 2; | |
537 | s->mouse_status = 0; | |
538 | kbd_queue(s, AUX_ACK, 1); | |
539 | break; | |
540 | case AUX_RESET: | |
541 | s->mouse_sample_rate = 100; | |
542 | s->mouse_resolution = 2; | |
543 | s->mouse_status = 0; | |
544 | kbd_queue(s, AUX_ACK, 1); | |
545 | kbd_queue(s, 0xaa, 1); | |
546 | kbd_queue(s, s->mouse_type, 1); | |
547 | break; | |
548 | default: | |
549 | break; | |
550 | } | |
551 | break; | |
552 | case AUX_SET_SAMPLE: | |
553 | s->mouse_sample_rate = val; | |
554 | #if 0 | |
555 | /* detect IMPS/2 or IMEX */ | |
556 | switch(s->mouse_detect_state) { | |
557 | default: | |
558 | case 0: | |
559 | if (val == 200) | |
560 | s->mouse_detect_state = 1; | |
561 | break; | |
562 | case 1: | |
563 | if (val == 100) | |
564 | s->mouse_detect_state = 2; | |
565 | else if (val == 200) | |
566 | s->mouse_detect_state = 3; | |
567 | else | |
568 | s->mouse_detect_state = 0; | |
569 | break; | |
570 | case 2: | |
571 | if (val == 80) | |
572 | s->mouse_type = 3; /* IMPS/2 */ | |
573 | s->mouse_detect_state = 0; | |
574 | break; | |
575 | case 3: | |
576 | if (val == 80) | |
577 | s->mouse_type = 4; /* IMEX */ | |
578 | s->mouse_detect_state = 0; | |
579 | break; | |
580 | } | |
581 | #endif | |
582 | kbd_queue(s, AUX_ACK, 1); | |
583 | s->mouse_write_cmd = -1; | |
584 | break; | |
585 | case AUX_SET_RES: | |
586 | s->mouse_resolution = val; | |
587 | kbd_queue(s, AUX_ACK, 1); | |
588 | s->mouse_write_cmd = -1; | |
589 | break; | |
590 | } | |
591 | } | |
592 | ||
b41a2cd1 | 593 | void kbd_write_data(void *opaque, uint32_t addr, uint32_t val) |
80cabfad | 594 | { |
b41a2cd1 | 595 | KBDState *s = opaque; |
80cabfad FB |
596 | |
597 | #ifdef DEBUG_KBD | |
598 | printf("kbd: write data=0x%02x\n", val); | |
599 | #endif | |
600 | ||
601 | switch(s->write_cmd) { | |
602 | case 0: | |
603 | kbd_write_keyboard(s, val); | |
604 | break; | |
605 | case KBD_CCMD_WRITE_MODE: | |
606 | s->mode = val; | |
607 | kbd_update_irq(s); | |
608 | break; | |
609 | case KBD_CCMD_WRITE_OBUF: | |
610 | kbd_queue(s, val, 0); | |
611 | break; | |
612 | case KBD_CCMD_WRITE_AUX_OBUF: | |
613 | kbd_queue(s, val, 1); | |
614 | break; | |
615 | case KBD_CCMD_WRITE_OUTPORT: | |
616 | #ifdef TARGET_I386 | |
b41a2cd1 | 617 | cpu_x86_set_a20(cpu_single_env, (val >> 1) & 1); |
80cabfad FB |
618 | #endif |
619 | if (!(val & 1)) { | |
620 | reset_requested = 1; | |
621 | cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); | |
622 | } | |
623 | break; | |
624 | case KBD_CCMD_WRITE_MOUSE: | |
625 | kbd_write_mouse(s, val); | |
626 | break; | |
627 | default: | |
628 | break; | |
629 | } | |
630 | s->write_cmd = 0; | |
631 | } | |
632 | ||
633 | void kbd_reset(KBDState *s) | |
634 | { | |
635 | KBDQueue *q; | |
80cabfad FB |
636 | |
637 | s->kbd_write_cmd = -1; | |
638 | s->mouse_write_cmd = -1; | |
639 | s->mode = KBD_MODE_KBD_INT | KBD_MODE_MOUSE_INT; | |
640 | s->status = KBD_STAT_CMD | KBD_STAT_UNLOCKED; | |
6f51f6b5 FB |
641 | q = &s->queue; |
642 | q->rptr = 0; | |
643 | q->wptr = 0; | |
644 | q->count = 0; | |
80cabfad FB |
645 | } |
646 | ||
647 | void kbd_init(void) | |
648 | { | |
b41a2cd1 FB |
649 | KBDState *s = &kbd_state; |
650 | ||
651 | kbd_reset(s); | |
652 | register_ioport_read(0x60, 1, 1, kbd_read_data, s); | |
653 | register_ioport_write(0x60, 1, 1, kbd_write_data, s); | |
654 | register_ioport_read(0x64, 1, 1, kbd_read_status, s); | |
655 | register_ioport_write(0x64, 1, 1, kbd_write_command, s); | |
63066f4f FB |
656 | |
657 | qemu_add_kbd_event_handler(pc_kbd_put_keycode, s); | |
658 | qemu_add_mouse_event_handler(pc_kbd_mouse_event, s); | |
80cabfad | 659 | } |