root / hw / usb-hid.c @ 9c02f1a2
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/*
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---|---|
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* QEMU USB HID devices
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*
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* Copyright (c) 2005 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h" |
25 |
|
26 |
/* HID interface requests */
|
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#define GET_REPORT 0xa101 |
28 |
#define GET_IDLE 0xa102 |
29 |
#define GET_PROTOCOL 0xa103 |
30 |
#define SET_IDLE 0x210a |
31 |
#define SET_PROTOCOL 0x210b |
32 |
|
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#define USB_MOUSE 1 |
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#define USB_TABLET 2 |
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|
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typedef struct USBMouseState { |
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USBDevice dev; |
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int dx, dy, dz, buttons_state;
|
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int x, y;
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int kind;
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int mouse_grabbed;
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QEMUPutMouseEntry *eh_entry; |
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} USBMouseState; |
44 |
|
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/* mostly the same values as the Bochs USB Mouse device */
|
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static const uint8_t qemu_mouse_dev_descriptor[] = { |
47 |
0x12, /* u8 bLength; */ |
48 |
0x01, /* u8 bDescriptorType; Device */ |
49 |
0x00, 0x01, /* u16 bcdUSB; v1.0 */ |
50 |
|
51 |
0x00, /* u8 bDeviceClass; */ |
52 |
0x00, /* u8 bDeviceSubClass; */ |
53 |
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ |
54 |
0x08, /* u8 bMaxPacketSize0; 8 Bytes */ |
55 |
|
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0x27, 0x06, /* u16 idVendor; */ |
57 |
0x01, 0x00, /* u16 idProduct; */ |
58 |
0x00, 0x00, /* u16 bcdDevice */ |
59 |
|
60 |
0x03, /* u8 iManufacturer; */ |
61 |
0x02, /* u8 iProduct; */ |
62 |
0x01, /* u8 iSerialNumber; */ |
63 |
0x01 /* u8 bNumConfigurations; */ |
64 |
}; |
65 |
|
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static const uint8_t qemu_mouse_config_descriptor[] = { |
67 |
/* one configuration */
|
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0x09, /* u8 bLength; */ |
69 |
0x02, /* u8 bDescriptorType; Configuration */ |
70 |
0x22, 0x00, /* u16 wTotalLength; */ |
71 |
0x01, /* u8 bNumInterfaces; (1) */ |
72 |
0x01, /* u8 bConfigurationValue; */ |
73 |
0x04, /* u8 iConfiguration; */ |
74 |
0xa0, /* u8 bmAttributes; |
75 |
Bit 7: must be set,
|
76 |
6: Self-powered,
|
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5: Remote wakeup,
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4..0: resvd */
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50, /* u8 MaxPower; */ |
80 |
|
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/* USB 1.1:
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* USB 2.0, single TT organization (mandatory):
|
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* one interface, protocol 0
|
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*
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* USB 2.0, multiple TT organization (optional):
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* two interfaces, protocols 1 (like single TT)
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* and 2 (multiple TT mode) ... config is
|
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* sometimes settable
|
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* NOT IMPLEMENTED
|
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*/
|
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|
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/* one interface */
|
93 |
0x09, /* u8 if_bLength; */ |
94 |
0x04, /* u8 if_bDescriptorType; Interface */ |
95 |
0x00, /* u8 if_bInterfaceNumber; */ |
96 |
0x00, /* u8 if_bAlternateSetting; */ |
97 |
0x01, /* u8 if_bNumEndpoints; */ |
98 |
0x03, /* u8 if_bInterfaceClass; */ |
99 |
0x01, /* u8 if_bInterfaceSubClass; */ |
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0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ |
101 |
0x05, /* u8 if_iInterface; */ |
102 |
|
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/* HID descriptor */
|
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0x09, /* u8 bLength; */ |
105 |
0x21, /* u8 bDescriptorType; */ |
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0x01, 0x00, /* u16 HID_class */ |
107 |
0x00, /* u8 country_code */ |
108 |
0x01, /* u8 num_descriptors */ |
109 |
0x22, /* u8 type; Report */ |
110 |
50, 0, /* u16 len */ |
111 |
|
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/* one endpoint (status change endpoint) */
|
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0x07, /* u8 ep_bLength; */ |
114 |
0x05, /* u8 ep_bDescriptorType; Endpoint */ |
115 |
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ |
116 |
0x03, /* u8 ep_bmAttributes; Interrupt */ |
117 |
0x03, 0x00, /* u16 ep_wMaxPacketSize; */ |
118 |
0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ |
119 |
}; |
120 |
|
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static const uint8_t qemu_tablet_config_descriptor[] = { |
122 |
/* one configuration */
|
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0x09, /* u8 bLength; */ |
124 |
0x02, /* u8 bDescriptorType; Configuration */ |
125 |
0x22, 0x00, /* u16 wTotalLength; */ |
126 |
0x01, /* u8 bNumInterfaces; (1) */ |
127 |
0x01, /* u8 bConfigurationValue; */ |
128 |
0x04, /* u8 iConfiguration; */ |
129 |
0xa0, /* u8 bmAttributes; |
130 |
Bit 7: must be set,
|
131 |
6: Self-powered,
|
132 |
5: Remote wakeup,
|
133 |
4..0: resvd */
|
134 |
50, /* u8 MaxPower; */ |
135 |
|
136 |
/* USB 1.1:
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137 |
* USB 2.0, single TT organization (mandatory):
|
138 |
* one interface, protocol 0
|
139 |
*
|
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* USB 2.0, multiple TT organization (optional):
|
141 |
* two interfaces, protocols 1 (like single TT)
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* and 2 (multiple TT mode) ... config is
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* sometimes settable
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* NOT IMPLEMENTED
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*/
|
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|
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/* one interface */
|
148 |
0x09, /* u8 if_bLength; */ |
149 |
0x04, /* u8 if_bDescriptorType; Interface */ |
150 |
0x00, /* u8 if_bInterfaceNumber; */ |
151 |
0x00, /* u8 if_bAlternateSetting; */ |
152 |
0x01, /* u8 if_bNumEndpoints; */ |
153 |
0x03, /* u8 if_bInterfaceClass; */ |
154 |
0x01, /* u8 if_bInterfaceSubClass; */ |
155 |
0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ |
156 |
0x05, /* u8 if_iInterface; */ |
157 |
|
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/* HID descriptor */
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0x09, /* u8 bLength; */ |
160 |
0x21, /* u8 bDescriptorType; */ |
161 |
0x01, 0x00, /* u16 HID_class */ |
162 |
0x00, /* u8 country_code */ |
163 |
0x01, /* u8 num_descriptors */ |
164 |
0x22, /* u8 type; Report */ |
165 |
74, 0, /* u16 len */ |
166 |
|
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/* one endpoint (status change endpoint) */
|
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0x07, /* u8 ep_bLength; */ |
169 |
0x05, /* u8 ep_bDescriptorType; Endpoint */ |
170 |
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ |
171 |
0x03, /* u8 ep_bmAttributes; Interrupt */ |
172 |
0x08, 0x00, /* u16 ep_wMaxPacketSize; */ |
173 |
0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ |
174 |
}; |
175 |
|
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static const uint8_t qemu_mouse_hid_report_descriptor[] = { |
177 |
0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, |
178 |
0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03, |
179 |
0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01, |
180 |
0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01, |
181 |
0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x15, 0x81, |
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0x25, 0x7F, 0x75, 0x08, 0x95, 0x02, 0x81, 0x06, |
183 |
0xC0, 0xC0, |
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}; |
185 |
|
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static const uint8_t qemu_tablet_hid_report_descriptor[] = { |
187 |
0x05, 0x01, /* Usage Page Generic Desktop */ |
188 |
0x09, 0x01, /* Usage Mouse */ |
189 |
0xA1, 0x01, /* Collection Application */ |
190 |
0x09, 0x01, /* Usage Pointer */ |
191 |
0xA1, 0x00, /* Collection Physical */ |
192 |
0x05, 0x09, /* Usage Page Button */ |
193 |
0x19, 0x01, /* Usage Minimum Button 1 */ |
194 |
0x29, 0x03, /* Usage Maximum Button 3 */ |
195 |
0x15, 0x00, /* Logical Minimum 0 */ |
196 |
0x25, 0x01, /* Logical Maximum 1 */ |
197 |
0x95, 0x03, /* Report Count 3 */ |
198 |
0x75, 0x01, /* Report Size 1 */ |
199 |
0x81, 0x02, /* Input (Data, Var, Abs) */ |
200 |
0x95, 0x01, /* Report Count 1 */ |
201 |
0x75, 0x05, /* Report Size 5 */ |
202 |
0x81, 0x01, /* Input (Cnst, Var, Abs) */ |
203 |
0x05, 0x01, /* Usage Page Generic Desktop */ |
204 |
0x09, 0x30, /* Usage X */ |
205 |
0x09, 0x31, /* Usage Y */ |
206 |
0x15, 0x00, /* Logical Minimum 0 */ |
207 |
0x26, 0xFF, 0x7F, /* Logical Maximum 0x7fff */ |
208 |
0x35, 0x00, /* Physical Minimum 0 */ |
209 |
0x46, 0xFE, 0x7F, /* Physical Maximum 0x7fff */ |
210 |
0x75, 0x10, /* Report Size 16 */ |
211 |
0x95, 0x02, /* Report Count 2 */ |
212 |
0x81, 0x02, /* Input (Data, Var, Abs) */ |
213 |
0x05, 0x01, /* Usage Page Generic Desktop */ |
214 |
0x09, 0x38, /* Usage Wheel */ |
215 |
0x15, 0x81, /* Logical Minimum -127 */ |
216 |
0x25, 0x7F, /* Logical Maximum 127 */ |
217 |
0x35, 0x00, /* Physical Minimum 0 (same as logical) */ |
218 |
0x45, 0x00, /* Physical Maximum 0 (same as logical) */ |
219 |
0x75, 0x08, /* Report Size 8 */ |
220 |
0x95, 0x01, /* Report Count 1 */ |
221 |
0x81, 0x02, /* Input (Data, Var, Rel) */ |
222 |
0xC0, /* End Collection */ |
223 |
0xC0, /* End Collection */ |
224 |
}; |
225 |
|
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static void usb_mouse_event(void *opaque, |
227 |
int dx1, int dy1, int dz1, int buttons_state) |
228 |
{ |
229 |
USBMouseState *s = opaque; |
230 |
|
231 |
s->dx += dx1; |
232 |
s->dy += dy1; |
233 |
s->dz += dz1; |
234 |
s->buttons_state = buttons_state; |
235 |
} |
236 |
|
237 |
static void usb_tablet_event(void *opaque, |
238 |
int x, int y, int dz, int buttons_state) |
239 |
{ |
240 |
USBMouseState *s = opaque; |
241 |
|
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s->x = x; |
243 |
s->y = y; |
244 |
s->dz += dz; |
245 |
s->buttons_state = buttons_state; |
246 |
} |
247 |
|
248 |
static inline int int_clamp(int val, int vmin, int vmax) |
249 |
{ |
250 |
if (val < vmin)
|
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return vmin;
|
252 |
else if (val > vmax) |
253 |
return vmax;
|
254 |
else
|
255 |
return val;
|
256 |
} |
257 |
|
258 |
static int usb_mouse_poll(USBMouseState *s, uint8_t *buf, int len) |
259 |
{ |
260 |
int dx, dy, dz, b, l;
|
261 |
|
262 |
if (!s->mouse_grabbed) {
|
263 |
s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, s, |
264 |
0, "QEMU USB Mouse"); |
265 |
s->mouse_grabbed = 1;
|
266 |
} |
267 |
|
268 |
dx = int_clamp(s->dx, -128, 127); |
269 |
dy = int_clamp(s->dy, -128, 127); |
270 |
dz = int_clamp(s->dz, -128, 127); |
271 |
|
272 |
s->dx -= dx; |
273 |
s->dy -= dy; |
274 |
s->dz -= dz; |
275 |
|
276 |
b = 0;
|
277 |
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
|
278 |
b |= 0x01;
|
279 |
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
|
280 |
b |= 0x02;
|
281 |
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
|
282 |
b |= 0x04;
|
283 |
|
284 |
buf[0] = b;
|
285 |
buf[1] = dx;
|
286 |
buf[2] = dy;
|
287 |
l = 3;
|
288 |
if (len >= 4) { |
289 |
buf[3] = dz;
|
290 |
l = 4;
|
291 |
} |
292 |
return l;
|
293 |
} |
294 |
|
295 |
static int usb_tablet_poll(USBMouseState *s, uint8_t *buf, int len) |
296 |
{ |
297 |
int dz, b, l;
|
298 |
|
299 |
if (!s->mouse_grabbed) {
|
300 |
s->eh_entry = qemu_add_mouse_event_handler(usb_tablet_event, s, |
301 |
1, "QEMU USB Tablet"); |
302 |
s->mouse_grabbed = 1;
|
303 |
} |
304 |
|
305 |
dz = int_clamp(s->dz, -128, 127); |
306 |
s->dz -= dz; |
307 |
|
308 |
/* Appears we have to invert the wheel direction */
|
309 |
dz = 0 - dz;
|
310 |
b = 0;
|
311 |
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
|
312 |
b |= 0x01;
|
313 |
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
|
314 |
b |= 0x02;
|
315 |
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
|
316 |
b |= 0x04;
|
317 |
|
318 |
buf[0] = b;
|
319 |
buf[1] = s->x & 0xff; |
320 |
buf[2] = s->x >> 8; |
321 |
buf[3] = s->y & 0xff; |
322 |
buf[4] = s->y >> 8; |
323 |
buf[5] = dz;
|
324 |
l = 6;
|
325 |
|
326 |
return l;
|
327 |
} |
328 |
|
329 |
static void usb_mouse_handle_reset(USBDevice *dev) |
330 |
{ |
331 |
USBMouseState *s = (USBMouseState *)dev; |
332 |
|
333 |
s->dx = 0;
|
334 |
s->dy = 0;
|
335 |
s->dz = 0;
|
336 |
s->x = 0;
|
337 |
s->y = 0;
|
338 |
s->buttons_state = 0;
|
339 |
} |
340 |
|
341 |
static int usb_mouse_handle_control(USBDevice *dev, int request, int value, |
342 |
int index, int length, uint8_t *data) |
343 |
{ |
344 |
USBMouseState *s = (USBMouseState *)dev; |
345 |
int ret = 0; |
346 |
|
347 |
switch(request) {
|
348 |
case DeviceRequest | USB_REQ_GET_STATUS:
|
349 |
data[0] = (1 << USB_DEVICE_SELF_POWERED) | |
350 |
(dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); |
351 |
data[1] = 0x00; |
352 |
ret = 2;
|
353 |
break;
|
354 |
case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
|
355 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
356 |
dev->remote_wakeup = 0;
|
357 |
} else {
|
358 |
goto fail;
|
359 |
} |
360 |
ret = 0;
|
361 |
break;
|
362 |
case DeviceOutRequest | USB_REQ_SET_FEATURE:
|
363 |
if (value == USB_DEVICE_REMOTE_WAKEUP) {
|
364 |
dev->remote_wakeup = 1;
|
365 |
} else {
|
366 |
goto fail;
|
367 |
} |
368 |
ret = 0;
|
369 |
break;
|
370 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
371 |
dev->addr = value; |
372 |
ret = 0;
|
373 |
break;
|
374 |
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
|
375 |
switch(value >> 8) { |
376 |
case USB_DT_DEVICE:
|
377 |
memcpy(data, qemu_mouse_dev_descriptor, |
378 |
sizeof(qemu_mouse_dev_descriptor));
|
379 |
ret = sizeof(qemu_mouse_dev_descriptor);
|
380 |
break;
|
381 |
case USB_DT_CONFIG:
|
382 |
if (s->kind == USB_MOUSE) {
|
383 |
memcpy(data, qemu_mouse_config_descriptor, |
384 |
sizeof(qemu_mouse_config_descriptor));
|
385 |
ret = sizeof(qemu_mouse_config_descriptor);
|
386 |
} else if (s->kind == USB_TABLET) { |
387 |
memcpy(data, qemu_tablet_config_descriptor, |
388 |
sizeof(qemu_tablet_config_descriptor));
|
389 |
ret = sizeof(qemu_tablet_config_descriptor);
|
390 |
} |
391 |
break;
|
392 |
case USB_DT_STRING:
|
393 |
switch(value & 0xff) { |
394 |
case 0: |
395 |
/* language ids */
|
396 |
data[0] = 4; |
397 |
data[1] = 3; |
398 |
data[2] = 0x09; |
399 |
data[3] = 0x04; |
400 |
ret = 4;
|
401 |
break;
|
402 |
case 1: |
403 |
/* serial number */
|
404 |
ret = set_usb_string(data, "1");
|
405 |
break;
|
406 |
case 2: |
407 |
/* product description */
|
408 |
if (s->kind == USB_MOUSE)
|
409 |
ret = set_usb_string(data, "QEMU USB Mouse");
|
410 |
else if (s->kind == USB_TABLET) |
411 |
ret = set_usb_string(data, "QEMU USB Tablet");
|
412 |
break;
|
413 |
case 3: |
414 |
/* vendor description */
|
415 |
ret = set_usb_string(data, "QEMU " QEMU_VERSION);
|
416 |
break;
|
417 |
case 4: |
418 |
ret = set_usb_string(data, "HID Mouse");
|
419 |
break;
|
420 |
case 5: |
421 |
ret = set_usb_string(data, "Endpoint1 Interrupt Pipe");
|
422 |
break;
|
423 |
default:
|
424 |
goto fail;
|
425 |
} |
426 |
break;
|
427 |
default:
|
428 |
goto fail;
|
429 |
} |
430 |
break;
|
431 |
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
432 |
data[0] = 1; |
433 |
ret = 1;
|
434 |
break;
|
435 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
436 |
ret = 0;
|
437 |
break;
|
438 |
case DeviceRequest | USB_REQ_GET_INTERFACE:
|
439 |
data[0] = 0; |
440 |
ret = 1;
|
441 |
break;
|
442 |
case DeviceOutRequest | USB_REQ_SET_INTERFACE:
|
443 |
ret = 0;
|
444 |
break;
|
445 |
/* hid specific requests */
|
446 |
case InterfaceRequest | USB_REQ_GET_DESCRIPTOR:
|
447 |
switch(value >> 8) { |
448 |
case 0x22: |
449 |
if (s->kind == USB_MOUSE) {
|
450 |
memcpy(data, qemu_mouse_hid_report_descriptor, |
451 |
sizeof(qemu_mouse_hid_report_descriptor));
|
452 |
ret = sizeof(qemu_mouse_hid_report_descriptor);
|
453 |
} else if (s->kind == USB_TABLET) { |
454 |
memcpy(data, qemu_tablet_hid_report_descriptor, |
455 |
sizeof(qemu_tablet_hid_report_descriptor));
|
456 |
ret = sizeof(qemu_tablet_hid_report_descriptor);
|
457 |
} |
458 |
break;
|
459 |
default:
|
460 |
goto fail;
|
461 |
} |
462 |
break;
|
463 |
case GET_REPORT:
|
464 |
if (s->kind == USB_MOUSE)
|
465 |
ret = usb_mouse_poll(s, data, length); |
466 |
else if (s->kind == USB_TABLET) |
467 |
ret = usb_tablet_poll(s, data, length); |
468 |
break;
|
469 |
case SET_IDLE:
|
470 |
ret = 0;
|
471 |
break;
|
472 |
default:
|
473 |
fail:
|
474 |
ret = USB_RET_STALL; |
475 |
break;
|
476 |
} |
477 |
return ret;
|
478 |
} |
479 |
|
480 |
static int usb_mouse_handle_data(USBDevice *dev, USBPacket *p) |
481 |
{ |
482 |
USBMouseState *s = (USBMouseState *)dev; |
483 |
int ret = 0; |
484 |
|
485 |
switch(p->pid) {
|
486 |
case USB_TOKEN_IN:
|
487 |
if (p->devep == 1) { |
488 |
if (s->kind == USB_MOUSE)
|
489 |
ret = usb_mouse_poll(s, p->data, p->len); |
490 |
else if (s->kind == USB_TABLET) |
491 |
ret = usb_tablet_poll(s, p->data, p->len); |
492 |
} else {
|
493 |
goto fail;
|
494 |
} |
495 |
break;
|
496 |
case USB_TOKEN_OUT:
|
497 |
default:
|
498 |
fail:
|
499 |
ret = USB_RET_STALL; |
500 |
break;
|
501 |
} |
502 |
return ret;
|
503 |
} |
504 |
|
505 |
static void usb_mouse_handle_destroy(USBDevice *dev) |
506 |
{ |
507 |
USBMouseState *s = (USBMouseState *)dev; |
508 |
|
509 |
qemu_remove_mouse_event_handler(s->eh_entry); |
510 |
qemu_free(s); |
511 |
} |
512 |
|
513 |
USBDevice *usb_tablet_init(void)
|
514 |
{ |
515 |
USBMouseState *s; |
516 |
|
517 |
s = qemu_mallocz(sizeof(USBMouseState));
|
518 |
if (!s)
|
519 |
return NULL; |
520 |
s->dev.speed = USB_SPEED_FULL; |
521 |
s->dev.handle_packet = usb_generic_handle_packet; |
522 |
|
523 |
s->dev.handle_reset = usb_mouse_handle_reset; |
524 |
s->dev.handle_control = usb_mouse_handle_control; |
525 |
s->dev.handle_data = usb_mouse_handle_data; |
526 |
s->dev.handle_destroy = usb_mouse_handle_destroy; |
527 |
s->kind = USB_TABLET; |
528 |
|
529 |
pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Tablet"); |
530 |
|
531 |
return (USBDevice *)s;
|
532 |
} |
533 |
|
534 |
USBDevice *usb_mouse_init(void)
|
535 |
{ |
536 |
USBMouseState *s; |
537 |
|
538 |
s = qemu_mallocz(sizeof(USBMouseState));
|
539 |
if (!s)
|
540 |
return NULL; |
541 |
s->dev.speed = USB_SPEED_FULL; |
542 |
s->dev.handle_packet = usb_generic_handle_packet; |
543 |
|
544 |
s->dev.handle_reset = usb_mouse_handle_reset; |
545 |
s->dev.handle_control = usb_mouse_handle_control; |
546 |
s->dev.handle_data = usb_mouse_handle_data; |
547 |
s->dev.handle_destroy = usb_mouse_handle_destroy; |
548 |
s->kind = USB_MOUSE; |
549 |
|
550 |
pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Mouse"); |
551 |
|
552 |
return (USBDevice *)s;
|
553 |
} |