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qcow2: Fix image creation regression
[qemu.git] / hw / usb-hid.c
blobbf456bbadfa70f251a45e7e066fa4a9a8b8e478f
1 /*
2 * QEMU USB HID devices
3 *
4 * Copyright (c) 2005 Fabrice Bellard
5 * Copyright (c) 2007 OpenMoko, Inc. (andrew@openedhand.com)
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25 #include "hw.h"
26 #include "console.h"
27 #include "usb.h"
28
29 /* HID interface requests */
30 #define GET_REPORT 0xa101
31 #define GET_IDLE 0xa102
32 #define GET_PROTOCOL 0xa103
33 #define SET_REPORT 0x2109
34 #define SET_IDLE 0x210a
35 #define SET_PROTOCOL 0x210b
36
37 /* HID descriptor types */
38 #define USB_DT_HID 0x21
39 #define USB_DT_REPORT 0x22
40 #define USB_DT_PHY 0x23
41
42 #define USB_MOUSE 1
43 #define USB_TABLET 2
44 #define USB_KEYBOARD 3
45
46 typedef struct USBMouseState {
47 int dx, dy, dz, buttons_state;
48 int x, y;
49 int mouse_grabbed;
50 QEMUPutMouseEntry *eh_entry;
51 } USBMouseState;
52
53 typedef struct USBKeyboardState {
54 uint16_t modifiers;
55 uint8_t leds;
56 uint8_t key[16];
57 int keys;
58 } USBKeyboardState;
59
60 typedef struct USBHIDState {
61 USBDevice dev;
62 union {
63 USBMouseState ptr;
64 USBKeyboardState kbd;
65 };
66 int kind;
67 int protocol;
68 uint8_t idle;
69 int64_t next_idle_clock;
70 int changed;
71 void *datain_opaque;
72 void (*datain)(void *);
73 } USBHIDState;
74
75 /* mostly the same values as the Bochs USB Mouse device */
76 static const uint8_t qemu_mouse_dev_descriptor[] = {
77 0x12, /* u8 bLength; */
78 0x01, /* u8 bDescriptorType; Device */
79 0x00, 0x01, /* u16 bcdUSB; v1.0 */
80
81 0x00, /* u8 bDeviceClass; */
82 0x00, /* u8 bDeviceSubClass; */
83 0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
84 0x08, /* u8 bMaxPacketSize0; 8 Bytes */
85
86 0x27, 0x06, /* u16 idVendor; */
87 0x01, 0x00, /* u16 idProduct; */
88 0x00, 0x00, /* u16 bcdDevice */
89
90 0x03, /* u8 iManufacturer; */
91 0x02, /* u8 iProduct; */
92 0x01, /* u8 iSerialNumber; */
93 0x01 /* u8 bNumConfigurations; */
94 };
95
96 static const uint8_t qemu_mouse_config_descriptor[] = {
97 /* one configuration */
98 0x09, /* u8 bLength; */
99 0x02, /* u8 bDescriptorType; Configuration */
100 0x22, 0x00, /* u16 wTotalLength; */
101 0x01, /* u8 bNumInterfaces; (1) */
102 0x01, /* u8 bConfigurationValue; */
103 0x04, /* u8 iConfiguration; */
104 0xe0, /* u8 bmAttributes;
105 Bit 7: must be set,
106 6: Self-powered,
107 5: Remote wakeup,
108 4..0: resvd */
109 50, /* u8 MaxPower; */
110
111 /* USB 1.1:
112 * USB 2.0, single TT organization (mandatory):
113 * one interface, protocol 0
114 *
115 * USB 2.0, multiple TT organization (optional):
116 * two interfaces, protocols 1 (like single TT)
117 * and 2 (multiple TT mode) ... config is
118 * sometimes settable
119 * NOT IMPLEMENTED
120 */
121
122 /* one interface */
123 0x09, /* u8 if_bLength; */
124 0x04, /* u8 if_bDescriptorType; Interface */
125 0x00, /* u8 if_bInterfaceNumber; */
126 0x00, /* u8 if_bAlternateSetting; */
127 0x01, /* u8 if_bNumEndpoints; */
128 0x03, /* u8 if_bInterfaceClass; */
129 0x01, /* u8 if_bInterfaceSubClass; */
130 0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
131 0x07, /* u8 if_iInterface; */
132
133 /* HID descriptor */
134 0x09, /* u8 bLength; */
135 0x21, /* u8 bDescriptorType; */
136 0x01, 0x00, /* u16 HID_class */
137 0x00, /* u8 country_code */
138 0x01, /* u8 num_descriptors */
139 0x22, /* u8 type; Report */
140 52, 0, /* u16 len */
141
142 /* one endpoint (status change endpoint) */
143 0x07, /* u8 ep_bLength; */
144 0x05, /* u8 ep_bDescriptorType; Endpoint */
145 0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
146 0x03, /* u8 ep_bmAttributes; Interrupt */
147 0x04, 0x00, /* u16 ep_wMaxPacketSize; */
148 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
149 };
150
151 static const uint8_t qemu_tablet_config_descriptor[] = {
152 /* one configuration */
153 0x09, /* u8 bLength; */
154 0x02, /* u8 bDescriptorType; Configuration */
155 0x22, 0x00, /* u16 wTotalLength; */
156 0x01, /* u8 bNumInterfaces; (1) */
157 0x01, /* u8 bConfigurationValue; */
158 0x05, /* u8 iConfiguration; */
159 0xa0, /* u8 bmAttributes;
160 Bit 7: must be set,
161 6: Self-powered,
162 5: Remote wakeup,
163 4..0: resvd */
164 50, /* u8 MaxPower; */
165
166 /* USB 1.1:
167 * USB 2.0, single TT organization (mandatory):
168 * one interface, protocol 0
169 *
170 * USB 2.0, multiple TT organization (optional):
171 * two interfaces, protocols 1 (like single TT)
172 * and 2 (multiple TT mode) ... config is
173 * sometimes settable
174 * NOT IMPLEMENTED
175 */
176
177 /* one interface */
178 0x09, /* u8 if_bLength; */
179 0x04, /* u8 if_bDescriptorType; Interface */
180 0x00, /* u8 if_bInterfaceNumber; */
181 0x00, /* u8 if_bAlternateSetting; */
182 0x01, /* u8 if_bNumEndpoints; */
183 0x03, /* u8 if_bInterfaceClass; */
184 0x01, /* u8 if_bInterfaceSubClass; */
185 0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */
186 0x07, /* u8 if_iInterface; */
187
188 /* HID descriptor */
189 0x09, /* u8 bLength; */
190 0x21, /* u8 bDescriptorType; */
191 0x01, 0x00, /* u16 HID_class */
192 0x00, /* u8 country_code */
193 0x01, /* u8 num_descriptors */
194 0x22, /* u8 type; Report */
195 74, 0, /* u16 len */
196
197 /* one endpoint (status change endpoint) */
198 0x07, /* u8 ep_bLength; */
199 0x05, /* u8 ep_bDescriptorType; Endpoint */
200 0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
201 0x03, /* u8 ep_bmAttributes; Interrupt */
202 0x08, 0x00, /* u16 ep_wMaxPacketSize; */
203 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
204 };
205
206 static const uint8_t qemu_keyboard_config_descriptor[] = {
207 /* one configuration */
208 0x09, /* u8 bLength; */
209 USB_DT_CONFIG, /* u8 bDescriptorType; Configuration */
210 0x22, 0x00, /* u16 wTotalLength; */
211 0x01, /* u8 bNumInterfaces; (1) */
212 0x01, /* u8 bConfigurationValue; */
213 0x06, /* u8 iConfiguration; */
214 0xa0, /* u8 bmAttributes;
215 Bit 7: must be set,
216 6: Self-powered,
217 5: Remote wakeup,
218 4..0: resvd */
219 0x32, /* u8 MaxPower; */
220
221 /* USB 1.1:
222 * USB 2.0, single TT organization (mandatory):
223 * one interface, protocol 0
224 *
225 * USB 2.0, multiple TT organization (optional):
226 * two interfaces, protocols 1 (like single TT)
227 * and 2 (multiple TT mode) ... config is
228 * sometimes settable
229 * NOT IMPLEMENTED
230 */
231
232 /* one interface */
233 0x09, /* u8 if_bLength; */
234 USB_DT_INTERFACE, /* u8 if_bDescriptorType; Interface */
235 0x00, /* u8 if_bInterfaceNumber; */
236 0x00, /* u8 if_bAlternateSetting; */
237 0x01, /* u8 if_bNumEndpoints; */
238 0x03, /* u8 if_bInterfaceClass; HID */
239 0x01, /* u8 if_bInterfaceSubClass; Boot */
240 0x01, /* u8 if_bInterfaceProtocol; Keyboard */
241 0x07, /* u8 if_iInterface; */
242
243 /* HID descriptor */
244 0x09, /* u8 bLength; */
245 USB_DT_HID, /* u8 bDescriptorType; */
246 0x11, 0x01, /* u16 HID_class */
247 0x00, /* u8 country_code */
248 0x01, /* u8 num_descriptors */
249 USB_DT_REPORT, /* u8 type; Report */
250 0x3f, 0x00, /* u16 len */
251
252 /* one endpoint (status change endpoint) */
253 0x07, /* u8 ep_bLength; */
254 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; Endpoint */
255 USB_DIR_IN | 0x01, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
256 0x03, /* u8 ep_bmAttributes; Interrupt */
257 0x08, 0x00, /* u16 ep_wMaxPacketSize; */
258 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
259 };
260
261 static const uint8_t qemu_mouse_hid_report_descriptor[] = {
262 0x05, 0x01, /* Usage Page (Generic Desktop) */
263 0x09, 0x02, /* Usage (Mouse) */
264 0xa1, 0x01, /* Collection (Application) */
265 0x09, 0x01, /* Usage (Pointer) */
266 0xa1, 0x00, /* Collection (Physical) */
267 0x05, 0x09, /* Usage Page (Button) */
268 0x19, 0x01, /* Usage Minimum (1) */
269 0x29, 0x03, /* Usage Maximum (3) */
270 0x15, 0x00, /* Logical Minimum (0) */
271 0x25, 0x01, /* Logical Maximum (1) */
272 0x95, 0x03, /* Report Count (3) */
273 0x75, 0x01, /* Report Size (1) */
274 0x81, 0x02, /* Input (Data, Variable, Absolute) */
275 0x95, 0x01, /* Report Count (1) */
276 0x75, 0x05, /* Report Size (5) */
277 0x81, 0x01, /* Input (Constant) */
278 0x05, 0x01, /* Usage Page (Generic Desktop) */
279 0x09, 0x30, /* Usage (X) */
280 0x09, 0x31, /* Usage (Y) */
281 0x09, 0x38, /* Usage (Wheel) */
282 0x15, 0x81, /* Logical Minimum (-0x7f) */
283 0x25, 0x7f, /* Logical Maximum (0x7f) */
284 0x75, 0x08, /* Report Size (8) */
285 0x95, 0x03, /* Report Count (3) */
286 0x81, 0x06, /* Input (Data, Variable, Relative) */
287 0xc0, /* End Collection */
288 0xc0, /* End Collection */
289 };
290
291 static const uint8_t qemu_tablet_hid_report_descriptor[] = {
292 0x05, 0x01, /* Usage Page (Generic Desktop) */
293 0x09, 0x01, /* Usage (Pointer) */
294 0xa1, 0x01, /* Collection (Application) */
295 0x09, 0x01, /* Usage (Pointer) */
296 0xa1, 0x00, /* Collection (Physical) */
297 0x05, 0x09, /* Usage Page (Button) */
298 0x19, 0x01, /* Usage Minimum (1) */
299 0x29, 0x03, /* Usage Maximum (3) */
300 0x15, 0x00, /* Logical Minimum (0) */
301 0x25, 0x01, /* Logical Maximum (1) */
302 0x95, 0x03, /* Report Count (3) */
303 0x75, 0x01, /* Report Size (1) */
304 0x81, 0x02, /* Input (Data, Variable, Absolute) */
305 0x95, 0x01, /* Report Count (1) */
306 0x75, 0x05, /* Report Size (5) */
307 0x81, 0x01, /* Input (Constant) */
308 0x05, 0x01, /* Usage Page (Generic Desktop) */
309 0x09, 0x30, /* Usage (X) */
310 0x09, 0x31, /* Usage (Y) */
311 0x15, 0x00, /* Logical Minimum (0) */
312 0x26, 0xff, 0x7f, /* Logical Maximum (0x7fff) */
313 0x35, 0x00, /* Physical Minimum (0) */
314 0x46, 0xff, 0x7f, /* Physical Maximum (0x7fff) */
315 0x75, 0x10, /* Report Size (16) */
316 0x95, 0x02, /* Report Count (2) */
317 0x81, 0x02, /* Input (Data, Variable, Absolute) */
318 0x05, 0x01, /* Usage Page (Generic Desktop) */
319 0x09, 0x38, /* Usage (Wheel) */
320 0x15, 0x81, /* Logical Minimum (-0x7f) */
321 0x25, 0x7f, /* Logical Maximum (0x7f) */
322 0x35, 0x00, /* Physical Minimum (same as logical) */
323 0x45, 0x00, /* Physical Maximum (same as logical) */
324 0x75, 0x08, /* Report Size (8) */
325 0x95, 0x01, /* Report Count (1) */
326 0x81, 0x06, /* Input (Data, Variable, Relative) */
327 0xc0, /* End Collection */
328 0xc0, /* End Collection */
329 };
330
331 static const uint8_t qemu_keyboard_hid_report_descriptor[] = {
332 0x05, 0x01, /* Usage Page (Generic Desktop) */
333 0x09, 0x06, /* Usage (Keyboard) */
334 0xa1, 0x01, /* Collection (Application) */
335 0x75, 0x01, /* Report Size (1) */
336 0x95, 0x08, /* Report Count (8) */
337 0x05, 0x07, /* Usage Page (Key Codes) */
338 0x19, 0xe0, /* Usage Minimum (224) */
339 0x29, 0xe7, /* Usage Maximum (231) */
340 0x15, 0x00, /* Logical Minimum (0) */
341 0x25, 0x01, /* Logical Maximum (1) */
342 0x81, 0x02, /* Input (Data, Variable, Absolute) */
343 0x95, 0x01, /* Report Count (1) */
344 0x75, 0x08, /* Report Size (8) */
345 0x81, 0x01, /* Input (Constant) */
346 0x95, 0x05, /* Report Count (5) */
347 0x75, 0x01, /* Report Size (1) */
348 0x05, 0x08, /* Usage Page (LEDs) */
349 0x19, 0x01, /* Usage Minimum (1) */
350 0x29, 0x05, /* Usage Maximum (5) */
351 0x91, 0x02, /* Output (Data, Variable, Absolute) */
352 0x95, 0x01, /* Report Count (1) */
353 0x75, 0x03, /* Report Size (3) */
354 0x91, 0x01, /* Output (Constant) */
355 0x95, 0x06, /* Report Count (6) */
356 0x75, 0x08, /* Report Size (8) */
357 0x15, 0x00, /* Logical Minimum (0) */
358 0x25, 0xff, /* Logical Maximum (255) */
359 0x05, 0x07, /* Usage Page (Key Codes) */
360 0x19, 0x00, /* Usage Minimum (0) */
361 0x29, 0xff, /* Usage Maximum (255) */
362 0x81, 0x00, /* Input (Data, Array) */
363 0xc0, /* End Collection */
364 };
365
366 #define USB_HID_USAGE_ERROR_ROLLOVER 0x01
367 #define USB_HID_USAGE_POSTFAIL 0x02
368 #define USB_HID_USAGE_ERROR_UNDEFINED 0x03
369
370 /* Indices are QEMU keycodes, values are from HID Usage Table. Indices
371 * above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */
372 static const uint8_t usb_hid_usage_keys[0x100] = {
373 0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
374 0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b,
375 0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c,
376 0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16,
377 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33,
378 0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19,
379 0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55,
380 0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
381 0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f,
382 0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59,
383 0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44,
384 0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
385 0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00,
386 0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00,
387 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
388 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65,
389
390 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
391 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
392 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
393 0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00,
394 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
395 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
396 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46,
397 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
398 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a,
399 0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d,
400 0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00,
401 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
402 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
403 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
404 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
405 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
406 };
407
408 static void usb_hid_changed(USBHIDState *hs)
409 {
410 hs->changed = 1;
411
412 if (hs->datain)
413 hs->datain(hs->datain_opaque);
414 }
415
416 static void usb_mouse_event(void *opaque,
417 int dx1, int dy1, int dz1, int buttons_state)
418 {
419 USBHIDState *hs = opaque;
420 USBMouseState *s = &hs->ptr;
421
422 s->dx += dx1;
423 s->dy += dy1;
424 s->dz += dz1;
425 s->buttons_state = buttons_state;
426
427 usb_hid_changed(hs);
428 }
429
430 static void usb_tablet_event(void *opaque,
431 int x, int y, int dz, int buttons_state)
432 {
433 USBHIDState *hs = opaque;
434 USBMouseState *s = &hs->ptr;
435
436 s->x = x;
437 s->y = y;
438 s->dz += dz;
439 s->buttons_state = buttons_state;
440
441 usb_hid_changed(hs);
442 }
443
444 static void usb_keyboard_event(void *opaque, int keycode)
445 {
446 USBHIDState *hs = opaque;
447 USBKeyboardState *s = &hs->kbd;
448 uint8_t hid_code, key;
449 int i;
450
451 key = keycode & 0x7f;
452 hid_code = usb_hid_usage_keys[key | ((s->modifiers >> 1) & (1 << 7))];
453 s->modifiers &= ~(1 << 8);
454
455 switch (hid_code) {
456 case 0x00:
457 return;
458
459 case 0xe0:
460 if (s->modifiers & (1 << 9)) {
461 s->modifiers ^= 3 << 8;
462 return;
463 }
464 case 0xe1 ... 0xe7:
465 if (keycode & (1 << 7)) {
466 s->modifiers &= ~(1 << (hid_code & 0x0f));
467 return;
468 }
469 case 0xe8 ... 0xef:
470 s->modifiers |= 1 << (hid_code & 0x0f);
471 return;
472 }
473
474 if (keycode & (1 << 7)) {
475 for (i = s->keys - 1; i >= 0; i --)
476 if (s->key[i] == hid_code) {
477 s->key[i] = s->key[-- s->keys];
478 s->key[s->keys] = 0x00;
479 usb_hid_changed(hs);
480 break;
481 }
482 if (i < 0)
483 return;
484 } else {
485 for (i = s->keys - 1; i >= 0; i --)
486 if (s->key[i] == hid_code)
487 break;
488 if (i < 0) {
489 if (s->keys < sizeof(s->key))
490 s->key[s->keys ++] = hid_code;
491 } else
492 return;
493 }
494
495 usb_hid_changed(hs);
496 }
497
498 static inline int int_clamp(int val, int vmin, int vmax)
499 {
500 if (val < vmin)
501 return vmin;
502 else if (val > vmax)
503 return vmax;
504 else
505 return val;
506 }
507
508 static int usb_mouse_poll(USBHIDState *hs, uint8_t *buf, int len)
509 {
510 int dx, dy, dz, b, l;
511 USBMouseState *s = &hs->ptr;
512
513 if (!s->mouse_grabbed) {
514 s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, hs,
515 0, "QEMU USB Mouse");
516 s->mouse_grabbed = 1;
517 }
518
519 dx = int_clamp(s->dx, -127, 127);
520 dy = int_clamp(s->dy, -127, 127);
521 dz = int_clamp(s->dz, -127, 127);
522
523 s->dx -= dx;
524 s->dy -= dy;
525 s->dz -= dz;
526
527 /* Appears we have to invert the wheel direction */
528 dz = 0 - dz;
529
530 b = 0;
531 if (s->buttons_state & MOUSE_EVENT_LBUTTON)
532 b |= 0x01;
533 if (s->buttons_state & MOUSE_EVENT_RBUTTON)
534 b |= 0x02;
535 if (s->buttons_state & MOUSE_EVENT_MBUTTON)
536 b |= 0x04;
537
538 l = 0;
539 if (len > l)
540 buf[l ++] = b;
541 if (len > l)
542 buf[l ++] = dx;
543 if (len > l)
544 buf[l ++] = dy;
545 if (len > l)
546 buf[l ++] = dz;
547 return l;
548 }
549
550 static int usb_tablet_poll(USBHIDState *hs, uint8_t *buf, int len)
551 {
552 int dz, b, l;
553 USBMouseState *s = &hs->ptr;
554
555 if (!s->mouse_grabbed) {
556 s->eh_entry = qemu_add_mouse_event_handler(usb_tablet_event, hs,
557 1, "QEMU USB Tablet");
558 s->mouse_grabbed = 1;
559 }
560
561 dz = int_clamp(s->dz, -127, 127);
562 s->dz -= dz;
563
564 /* Appears we have to invert the wheel direction */
565 dz = 0 - dz;
566 b = 0;
567 if (s->buttons_state & MOUSE_EVENT_LBUTTON)
568 b |= 0x01;
569 if (s->buttons_state & MOUSE_EVENT_RBUTTON)
570 b |= 0x02;
571 if (s->buttons_state & MOUSE_EVENT_MBUTTON)
572 b |= 0x04;
573
574 buf[0] = b;
575 buf[1] = s->x & 0xff;
576 buf[2] = s->x >> 8;
577 buf[3] = s->y & 0xff;
578 buf[4] = s->y >> 8;
579 buf[5] = dz;
580 l = 6;
581
582 return l;
583 }
584
585 static int usb_keyboard_poll(USBKeyboardState *s, uint8_t *buf, int len)
586 {
587 if (len < 2)
588 return 0;
589
590 buf[0] = s->modifiers & 0xff;
591 buf[1] = 0;
592 if (s->keys > 6)
593 memset(buf + 2, USB_HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2);
594 else
595 memcpy(buf + 2, s->key, MIN(8, len) - 2);
596
597 return MIN(8, len);
598 }
599
600 static int usb_keyboard_write(USBKeyboardState *s, uint8_t *buf, int len)
601 {
602 if (len > 0) {
603 /* 0x01: Num Lock LED
604 * 0x02: Caps Lock LED
605 * 0x04: Scroll Lock LED
606 * 0x08: Compose LED
607 * 0x10: Kana LED */
608 s->leds = buf[0];
609 }
610 return 0;
611 }
612
613 static void usb_mouse_handle_reset(USBDevice *dev)
614 {
615 USBHIDState *s = (USBHIDState *)dev;
616
617 s->ptr.dx = 0;
618 s->ptr.dy = 0;
619 s->ptr.dz = 0;
620 s->ptr.x = 0;
621 s->ptr.y = 0;
622 s->ptr.buttons_state = 0;
623 s->protocol = 1;
624 }
625
626 static void usb_keyboard_handle_reset(USBDevice *dev)
627 {
628 USBHIDState *s = (USBHIDState *)dev;
629
630 qemu_add_kbd_event_handler(usb_keyboard_event, s);
631 s->protocol = 1;
632 }
633
634 static void usb_hid_set_next_idle(USBHIDState *s, int64_t curtime)
635 {
636 s->next_idle_clock = curtime + (get_ticks_per_sec() * s->idle * 4) / 1000;
637 }
638
639 static int usb_hid_handle_control(USBDevice *dev, int request, int value,
640 int index, int length, uint8_t *data)
641 {
642 USBHIDState *s = (USBHIDState *)dev;
643 int ret = 0;
644
645 switch(request) {
646 case DeviceRequest | USB_REQ_GET_STATUS:
647 data[0] = (1 << USB_DEVICE_SELF_POWERED) |
648 (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
649 data[1] = 0x00;
650 ret = 2;
651 break;
652 case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
653 if (value == USB_DEVICE_REMOTE_WAKEUP) {
654 dev->remote_wakeup = 0;
655 } else {
656 goto fail;
657 }
658 ret = 0;
659 break;
660 case DeviceOutRequest | USB_REQ_SET_FEATURE:
661 if (value == USB_DEVICE_REMOTE_WAKEUP) {
662 dev->remote_wakeup = 1;
663 } else {
664 goto fail;
665 }
666 ret = 0;
667 break;
668 case DeviceOutRequest | USB_REQ_SET_ADDRESS:
669 dev->addr = value;
670 ret = 0;
671 break;
672 case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
673 switch(value >> 8) {
674 case USB_DT_DEVICE:
675 memcpy(data, qemu_mouse_dev_descriptor,
676 sizeof(qemu_mouse_dev_descriptor));
677 ret = sizeof(qemu_mouse_dev_descriptor);
678 break;
679 case USB_DT_CONFIG:
680 if (s->kind == USB_MOUSE) {
681 memcpy(data, qemu_mouse_config_descriptor,
682 sizeof(qemu_mouse_config_descriptor));
683 ret = sizeof(qemu_mouse_config_descriptor);
684 } else if (s->kind == USB_TABLET) {
685 memcpy(data, qemu_tablet_config_descriptor,
686 sizeof(qemu_tablet_config_descriptor));
687 ret = sizeof(qemu_tablet_config_descriptor);
688 } else if (s->kind == USB_KEYBOARD) {
689 memcpy(data, qemu_keyboard_config_descriptor,
690 sizeof(qemu_keyboard_config_descriptor));
691 ret = sizeof(qemu_keyboard_config_descriptor);
692 }
693 break;
694 case USB_DT_STRING:
695 switch(value & 0xff) {
696 case 0:
697 /* language ids */
698 data[0] = 4;
699 data[1] = 3;
700 data[2] = 0x09;
701 data[3] = 0x04;
702 ret = 4;
703 break;
704 case 1:
705 /* serial number */
706 ret = set_usb_string(data, "1");
707 break;
708 case 2:
709 /* product description */
710 ret = set_usb_string(data, s->dev.product_desc);
711 break;
712 case 3:
713 /* vendor description */
714 ret = set_usb_string(data, "QEMU " QEMU_VERSION);
715 break;
716 case 4:
717 ret = set_usb_string(data, "HID Mouse");
718 break;
719 case 5:
720 ret = set_usb_string(data, "HID Tablet");
721 break;
722 case 6:
723 ret = set_usb_string(data, "HID Keyboard");
724 break;
725 case 7:
726 ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
727 break;
728 default:
729 goto fail;
730 }
731 break;
732 default:
733 goto fail;
734 }
735 break;
736 case DeviceRequest | USB_REQ_GET_CONFIGURATION:
737 data[0] = 1;
738 ret = 1;
739 break;
740 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
741 ret = 0;
742 break;
743 case DeviceRequest | USB_REQ_GET_INTERFACE:
744 data[0] = 0;
745 ret = 1;
746 break;
747 case DeviceOutRequest | USB_REQ_SET_INTERFACE:
748 ret = 0;
749 break;
750 /* hid specific requests */
751 case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
752 switch(value >> 8) {
753 case 0x22:
754 if (s->kind == USB_MOUSE) {
755 memcpy(data, qemu_mouse_hid_report_descriptor,
756 sizeof(qemu_mouse_hid_report_descriptor));
757 ret = sizeof(qemu_mouse_hid_report_descriptor);
758 } else if (s->kind == USB_TABLET) {
759 memcpy(data, qemu_tablet_hid_report_descriptor,
760 sizeof(qemu_tablet_hid_report_descriptor));
761 ret = sizeof(qemu_tablet_hid_report_descriptor);
762 } else if (s->kind == USB_KEYBOARD) {
763 memcpy(data, qemu_keyboard_hid_report_descriptor,
764 sizeof(qemu_keyboard_hid_report_descriptor));
765 ret = sizeof(qemu_keyboard_hid_report_descriptor);
766 }
767 break;
768 default:
769 goto fail;
770 }
771 break;
772 case GET_REPORT:
773 if (s->kind == USB_MOUSE)
774 ret = usb_mouse_poll(s, data, length);
775 else if (s->kind == USB_TABLET)
776 ret = usb_tablet_poll(s, data, length);
777 else if (s->kind == USB_KEYBOARD)
778 ret = usb_keyboard_poll(&s->kbd, data, length);
779 break;
780 case SET_REPORT:
781 if (s->kind == USB_KEYBOARD)
782 ret = usb_keyboard_write(&s->kbd, data, length);
783 else
784 goto fail;
785 break;
786 case GET_PROTOCOL:
787 if (s->kind != USB_KEYBOARD)
788 goto fail;
789 ret = 1;
790 data[0] = s->protocol;
791 break;
792 case SET_PROTOCOL:
793 if (s->kind != USB_KEYBOARD)
794 goto fail;
795 ret = 0;
796 s->protocol = value;
797 break;
798 case GET_IDLE:
799 ret = 1;
800 data[0] = s->idle;
801 break;
802 case SET_IDLE:
803 s->idle = (uint8_t) (value >> 8);
804 usb_hid_set_next_idle(s, qemu_get_clock(vm_clock));
805 ret = 0;
806 break;
807 default:
808 fail:
809 ret = USB_RET_STALL;
810 break;
811 }
812 return ret;
813 }
814
815 static int usb_hid_handle_data(USBDevice *dev, USBPacket *p)
816 {
817 USBHIDState *s = (USBHIDState *)dev;
818 int ret = 0;
819
820 switch(p->pid) {
821 case USB_TOKEN_IN:
822 if (p->devep == 1) {
823 int64_t curtime = qemu_get_clock(vm_clock);
824 if (!s->changed && (!s->idle || s->next_idle_clock - curtime > 0))
825 return USB_RET_NAK;
826 usb_hid_set_next_idle(s, curtime);
827 s->changed = 0;
828 if (s->kind == USB_MOUSE)
829 ret = usb_mouse_poll(s, p->data, p->len);
830 else if (s->kind == USB_TABLET)
831 ret = usb_tablet_poll(s, p->data, p->len);
832 else if (s->kind == USB_KEYBOARD)
833 ret = usb_keyboard_poll(&s->kbd, p->data, p->len);
834 } else {
835 goto fail;
836 }
837 break;
838 case USB_TOKEN_OUT:
839 default:
840 fail:
841 ret = USB_RET_STALL;
842 break;
843 }
844 return ret;
845 }
846
847 static void usb_hid_handle_destroy(USBDevice *dev)
848 {
849 USBHIDState *s = (USBHIDState *)dev;
850
851 if (s->kind != USB_KEYBOARD)
852 qemu_remove_mouse_event_handler(s->ptr.eh_entry);
853 /* TODO: else */
854 }
855
856 static int usb_hid_initfn(USBDevice *dev, int kind)
857 {
858 USBHIDState *s = DO_UPCAST(USBHIDState, dev, dev);
859 s->dev.speed = USB_SPEED_FULL;
860 s->kind = kind;
861 /* Force poll routine to be run and grab input the first time. */
862 s->changed = 1;
863 return 0;
864 }
865
866 static int usb_tablet_initfn(USBDevice *dev)
867 {
868 return usb_hid_initfn(dev, USB_TABLET);
869 }
870
871 static int usb_mouse_initfn(USBDevice *dev)
872 {
873 return usb_hid_initfn(dev, USB_MOUSE);
874 }
875
876 static int usb_keyboard_initfn(USBDevice *dev)
877 {
878 return usb_hid_initfn(dev, USB_KEYBOARD);
879 }
880
881 void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *))
882 {
883 USBHIDState *s = (USBHIDState *)dev;
884
885 s->datain_opaque = opaque;
886 s->datain = datain;
887 }
888
889 static struct USBDeviceInfo hid_info[] = {
890 {
891 .product_desc = "QEMU USB Tablet",
892 .qdev.name = "usb-tablet",
893 .usbdevice_name = "tablet",
894 .qdev.size = sizeof(USBHIDState),
895 .init = usb_tablet_initfn,
896 .handle_packet = usb_generic_handle_packet,
897 .handle_reset = usb_mouse_handle_reset,
898 .handle_control = usb_hid_handle_control,
899 .handle_data = usb_hid_handle_data,
900 .handle_destroy = usb_hid_handle_destroy,
901 },{
902 .product_desc = "QEMU USB Mouse",
903 .qdev.name = "usb-mouse",
904 .usbdevice_name = "mouse",
905 .qdev.size = sizeof(USBHIDState),
906 .init = usb_mouse_initfn,
907 .handle_packet = usb_generic_handle_packet,
908 .handle_reset = usb_mouse_handle_reset,
909 .handle_control = usb_hid_handle_control,
910 .handle_data = usb_hid_handle_data,
911 .handle_destroy = usb_hid_handle_destroy,
912 },{
913 .product_desc = "QEMU USB Keyboard",
914 .qdev.name = "usb-kbd",
915 .usbdevice_name = "keyboard",
916 .qdev.size = sizeof(USBHIDState),
917 .init = usb_keyboard_initfn,
918 .handle_packet = usb_generic_handle_packet,
919 .handle_reset = usb_keyboard_handle_reset,
920 .handle_control = usb_hid_handle_control,
921 .handle_data = usb_hid_handle_data,
922 .handle_destroy = usb_hid_handle_destroy,
923 },{
924 /* end of list */
925 }
926 };
927
928 static void usb_hid_register_devices(void)
929 {
930 usb_qdev_register_many(hid_info);
931 }
932 device_init(usb_hid_register_devices)
QEmu