linux-user, arm: add syscall table generation support
[qemu.git] / hw / i386 / vmmouse.c
1 /*
2 * QEMU VMMouse emulation
3 *
4 * Copyright (C) 2007 Anthony Liguori <anthony@codemonkey.ws>
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 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "ui/console.h"
28 #include "hw/i386/pc.h"
29 #include "hw/input/i8042.h"
30 #include "hw/qdev-properties.h"
31 #include "migration/vmstate.h"
32
33 /* debug only vmmouse */
34 //#define DEBUG_VMMOUSE
35
36 /* VMMouse Commands */
37 #define VMMOUSE_GETVERSION 10
38 #define VMMOUSE_DATA 39
39 #define VMMOUSE_STATUS 40
40 #define VMMOUSE_COMMAND 41
41
42 #define VMMOUSE_READ_ID 0x45414552
43 #define VMMOUSE_DISABLE 0x000000f5
44 #define VMMOUSE_REQUEST_RELATIVE 0x4c455252
45 #define VMMOUSE_REQUEST_ABSOLUTE 0x53424152
46
47 #define VMMOUSE_QUEUE_SIZE 1024
48
49 #define VMMOUSE_VERSION 0x3442554a
50
51 #ifdef DEBUG_VMMOUSE
52 #define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)
53 #else
54 #define DPRINTF(fmt, ...) do { } while (0)
55 #endif
56
57 #define TYPE_VMMOUSE "vmmouse"
58 #define VMMOUSE(obj) OBJECT_CHECK(VMMouseState, (obj), TYPE_VMMOUSE)
59
60 typedef struct VMMouseState
61 {
62 ISADevice parent_obj;
63
64 uint32_t queue[VMMOUSE_QUEUE_SIZE];
65 int32_t queue_size;
66 uint16_t nb_queue;
67 uint16_t status;
68 uint8_t absolute;
69 QEMUPutMouseEntry *entry;
70 ISAKBDState *i8042;
71 } VMMouseState;
72
73 static uint32_t vmmouse_get_status(VMMouseState *s)
74 {
75 DPRINTF("vmmouse_get_status()\n");
76 return (s->status << 16) | s->nb_queue;
77 }
78
79 static void vmmouse_mouse_event(void *opaque, int x, int y, int dz, int buttons_state)
80 {
81 VMMouseState *s = opaque;
82 int buttons = 0;
83
84 if (s->nb_queue > (VMMOUSE_QUEUE_SIZE - 4))
85 return;
86
87 DPRINTF("vmmouse_mouse_event(%d, %d, %d, %d)\n",
88 x, y, dz, buttons_state);
89
90 if ((buttons_state & MOUSE_EVENT_LBUTTON))
91 buttons |= 0x20;
92 if ((buttons_state & MOUSE_EVENT_RBUTTON))
93 buttons |= 0x10;
94 if ((buttons_state & MOUSE_EVENT_MBUTTON))
95 buttons |= 0x08;
96
97 if (s->absolute) {
98 x <<= 1;
99 y <<= 1;
100 }
101
102 s->queue[s->nb_queue++] = buttons;
103 s->queue[s->nb_queue++] = x;
104 s->queue[s->nb_queue++] = y;
105 s->queue[s->nb_queue++] = dz;
106
107 /* need to still generate PS2 events to notify driver to
108 read from queue */
109 i8042_isa_mouse_fake_event(s->i8042);
110 }
111
112 static void vmmouse_remove_handler(VMMouseState *s)
113 {
114 if (s->entry) {
115 qemu_remove_mouse_event_handler(s->entry);
116 s->entry = NULL;
117 }
118 }
119
120 static void vmmouse_update_handler(VMMouseState *s, int absolute)
121 {
122 if (s->status != 0) {
123 return;
124 }
125 if (s->absolute != absolute) {
126 s->absolute = absolute;
127 vmmouse_remove_handler(s);
128 }
129 if (s->entry == NULL) {
130 s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event,
131 s, s->absolute,
132 "vmmouse");
133 qemu_activate_mouse_event_handler(s->entry);
134 }
135 }
136
137 static void vmmouse_read_id(VMMouseState *s)
138 {
139 DPRINTF("vmmouse_read_id()\n");
140
141 if (s->nb_queue == VMMOUSE_QUEUE_SIZE)
142 return;
143
144 s->queue[s->nb_queue++] = VMMOUSE_VERSION;
145 s->status = 0;
146 }
147
148 static void vmmouse_request_relative(VMMouseState *s)
149 {
150 DPRINTF("vmmouse_request_relative()\n");
151 vmmouse_update_handler(s, 0);
152 }
153
154 static void vmmouse_request_absolute(VMMouseState *s)
155 {
156 DPRINTF("vmmouse_request_absolute()\n");
157 vmmouse_update_handler(s, 1);
158 }
159
160 static void vmmouse_disable(VMMouseState *s)
161 {
162 DPRINTF("vmmouse_disable()\n");
163 s->status = 0xffff;
164 vmmouse_remove_handler(s);
165 }
166
167 static void vmmouse_data(VMMouseState *s, uint32_t *data, uint32_t size)
168 {
169 int i;
170
171 DPRINTF("vmmouse_data(%d)\n", size);
172
173 if (size == 0 || size > 6 || size > s->nb_queue) {
174 printf("vmmouse: driver requested too much data %d\n", size);
175 s->status = 0xffff;
176 vmmouse_remove_handler(s);
177 return;
178 }
179
180 for (i = 0; i < size; i++)
181 data[i] = s->queue[i];
182
183 s->nb_queue -= size;
184 if (s->nb_queue)
185 memmove(s->queue, &s->queue[size], sizeof(s->queue[0]) * s->nb_queue);
186 }
187
188 static uint32_t vmmouse_ioport_read(void *opaque, uint32_t addr)
189 {
190 VMMouseState *s = opaque;
191 uint32_t data[6];
192 uint16_t command;
193
194 vmmouse_get_data(data);
195
196 command = data[2] & 0xFFFF;
197
198 switch (command) {
199 case VMMOUSE_STATUS:
200 data[0] = vmmouse_get_status(s);
201 break;
202 case VMMOUSE_COMMAND:
203 switch (data[1]) {
204 case VMMOUSE_DISABLE:
205 vmmouse_disable(s);
206 break;
207 case VMMOUSE_READ_ID:
208 vmmouse_read_id(s);
209 break;
210 case VMMOUSE_REQUEST_RELATIVE:
211 vmmouse_request_relative(s);
212 break;
213 case VMMOUSE_REQUEST_ABSOLUTE:
214 vmmouse_request_absolute(s);
215 break;
216 default:
217 printf("vmmouse: unknown command %x\n", data[1]);
218 break;
219 }
220 break;
221 case VMMOUSE_DATA:
222 vmmouse_data(s, data, data[1]);
223 break;
224 default:
225 printf("vmmouse: unknown command %x\n", command);
226 break;
227 }
228
229 vmmouse_set_data(data);
230 return data[0];
231 }
232
233 static int vmmouse_post_load(void *opaque, int version_id)
234 {
235 VMMouseState *s = opaque;
236
237 vmmouse_remove_handler(s);
238 vmmouse_update_handler(s, s->absolute);
239 return 0;
240 }
241
242 static const VMStateDescription vmstate_vmmouse = {
243 .name = "vmmouse",
244 .version_id = 0,
245 .minimum_version_id = 0,
246 .post_load = vmmouse_post_load,
247 .fields = (VMStateField[]) {
248 VMSTATE_INT32_EQUAL(queue_size, VMMouseState, NULL),
249 VMSTATE_UINT32_ARRAY(queue, VMMouseState, VMMOUSE_QUEUE_SIZE),
250 VMSTATE_UINT16(nb_queue, VMMouseState),
251 VMSTATE_UINT16(status, VMMouseState),
252 VMSTATE_UINT8(absolute, VMMouseState),
253 VMSTATE_END_OF_LIST()
254 }
255 };
256
257 static void vmmouse_reset(DeviceState *d)
258 {
259 VMMouseState *s = VMMOUSE(d);
260
261 s->queue_size = VMMOUSE_QUEUE_SIZE;
262 s->nb_queue = 0;
263
264 vmmouse_disable(s);
265 }
266
267 static void vmmouse_realizefn(DeviceState *dev, Error **errp)
268 {
269 VMMouseState *s = VMMOUSE(dev);
270
271 DPRINTF("vmmouse_init\n");
272
273 if (!object_resolve_path_type("", TYPE_VMPORT, NULL)) {
274 error_setg(errp, "vmmouse needs a machine with vmport");
275 return;
276 }
277
278 vmport_register(VMMOUSE_STATUS, vmmouse_ioport_read, s);
279 vmport_register(VMMOUSE_COMMAND, vmmouse_ioport_read, s);
280 vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s);
281 }
282
283 static Property vmmouse_properties[] = {
284 DEFINE_PROP_LINK("i8042", VMMouseState, i8042, TYPE_I8042, ISAKBDState *),
285 DEFINE_PROP_END_OF_LIST(),
286 };
287
288 static void vmmouse_class_initfn(ObjectClass *klass, void *data)
289 {
290 DeviceClass *dc = DEVICE_CLASS(klass);
291
292 dc->realize = vmmouse_realizefn;
293 dc->reset = vmmouse_reset;
294 dc->vmsd = &vmstate_vmmouse;
295 device_class_set_props(dc, vmmouse_properties);
296 }
297
298 static const TypeInfo vmmouse_info = {
299 .name = TYPE_VMMOUSE,
300 .parent = TYPE_ISA_DEVICE,
301 .instance_size = sizeof(VMMouseState),
302 .class_init = vmmouse_class_initfn,
303 };
304
305 static void vmmouse_register_types(void)
306 {
307 type_register_static(&vmmouse_info);
308 }
309
310 type_init(vmmouse_register_types)