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Commit | Line | Data |
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548df2ac TS |
1 | /* |
2 | * QEMU VMMouse emulation | |
5fafdf24 | 3 | * |
548df2ac | 4 | * Copyright (C) 2007 Anthony Liguori <anthony@codemonkey.ws> |
5fafdf24 | 5 | * |
548df2ac TS |
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 | */ | |
d6454270 | 24 | |
0430891c | 25 | #include "qemu/osdep.h" |
bb38df84 | 26 | #include "qapi/error.h" |
28ecbaee | 27 | #include "ui/console.h" |
d8f23d61 | 28 | #include "hw/i386/vmport.h" |
47973a2d | 29 | #include "hw/input/i8042.h" |
a27bd6c7 | 30 | #include "hw/qdev-properties.h" |
d6454270 | 31 | #include "migration/vmstate.h" |
d8a05995 | 32 | #include "cpu.h" |
db1015e9 | 33 | #include "qom/object.h" |
548df2ac | 34 | |
885f380f MAL |
35 | #include "trace.h" |
36 | ||
548df2ac TS |
37 | /* debug only vmmouse */ |
38 | //#define DEBUG_VMMOUSE | |
39 | ||
548df2ac TS |
40 | #define VMMOUSE_READ_ID 0x45414552 |
41 | #define VMMOUSE_DISABLE 0x000000f5 | |
42 | #define VMMOUSE_REQUEST_RELATIVE 0x4c455252 | |
43 | #define VMMOUSE_REQUEST_ABSOLUTE 0x53424152 | |
44 | ||
45 | #define VMMOUSE_QUEUE_SIZE 1024 | |
46 | ||
548df2ac TS |
47 | #define VMMOUSE_VERSION 0x3442554a |
48 | ||
fdd64953 ZZ |
49 | #define VMMOUSE_RELATIVE_PACKET 0x00010000 |
50 | ||
51 | #define VMMOUSE_LEFT_BUTTON 0x20 | |
52 | #define VMMOUSE_RIGHT_BUTTON 0x10 | |
53 | #define VMMOUSE_MIDDLE_BUTTON 0x08 | |
54 | ||
67a6fcb2 MAL |
55 | #define VMMOUSE_MIN_X 0 |
56 | #define VMMOUSE_MIN_Y 0 | |
57 | #define VMMOUSE_MAX_X 0xFFFF | |
58 | #define VMMOUSE_MAX_Y 0xFFFF | |
59 | ||
e3b7fbea | 60 | #define TYPE_VMMOUSE "vmmouse" |
8063396b | 61 | OBJECT_DECLARE_SIMPLE_TYPE(VMMouseState, VMMOUSE) |
e3b7fbea | 62 | |
db1015e9 | 63 | struct VMMouseState { |
e3b7fbea AF |
64 | ISADevice parent_obj; |
65 | ||
548df2ac | 66 | uint32_t queue[VMMOUSE_QUEUE_SIZE]; |
bcb58d9a | 67 | int32_t queue_size; |
548df2ac TS |
68 | uint16_t nb_queue; |
69 | uint16_t status; | |
70 | uint8_t absolute; | |
71 | QEMUPutMouseEntry *entry; | |
0fe4bb32 | 72 | ISAKBDState *i8042; |
db1015e9 | 73 | }; |
548df2ac | 74 | |
d8a05995 PMD |
75 | static void vmmouse_get_data(uint32_t *data) |
76 | { | |
77 | X86CPU *cpu = X86_CPU(current_cpu); | |
78 | CPUX86State *env = &cpu->env; | |
79 | ||
80 | data[0] = env->regs[R_EAX]; data[1] = env->regs[R_EBX]; | |
81 | data[2] = env->regs[R_ECX]; data[3] = env->regs[R_EDX]; | |
82 | data[4] = env->regs[R_ESI]; data[5] = env->regs[R_EDI]; | |
83 | } | |
84 | ||
85 | static void vmmouse_set_data(const uint32_t *data) | |
86 | { | |
87 | X86CPU *cpu = X86_CPU(current_cpu); | |
88 | CPUX86State *env = &cpu->env; | |
89 | ||
90 | env->regs[R_EAX] = data[0]; env->regs[R_EBX] = data[1]; | |
91 | env->regs[R_ECX] = data[2]; env->regs[R_EDX] = data[3]; | |
92 | env->regs[R_ESI] = data[4]; env->regs[R_EDI] = data[5]; | |
93 | } | |
94 | ||
548df2ac TS |
95 | static uint32_t vmmouse_get_status(VMMouseState *s) |
96 | { | |
885f380f MAL |
97 | trace_vmmouse_get_status(); |
98 | ||
548df2ac TS |
99 | return (s->status << 16) | s->nb_queue; |
100 | } | |
101 | ||
102 | static void vmmouse_mouse_event(void *opaque, int x, int y, int dz, int buttons_state) | |
103 | { | |
104 | VMMouseState *s = opaque; | |
105 | int buttons = 0; | |
106 | ||
107 | if (s->nb_queue > (VMMOUSE_QUEUE_SIZE - 4)) | |
4ed59aa5 | 108 | return; |
548df2ac | 109 | |
885f380f | 110 | trace_vmmouse_mouse_event(x, y, dz, buttons_state); |
548df2ac TS |
111 | |
112 | if ((buttons_state & MOUSE_EVENT_LBUTTON)) | |
fdd64953 | 113 | buttons |= VMMOUSE_LEFT_BUTTON; |
548df2ac | 114 | if ((buttons_state & MOUSE_EVENT_RBUTTON)) |
fdd64953 | 115 | buttons |= VMMOUSE_RIGHT_BUTTON; |
548df2ac | 116 | if ((buttons_state & MOUSE_EVENT_MBUTTON)) |
fdd64953 | 117 | buttons |= VMMOUSE_MIDDLE_BUTTON; |
548df2ac TS |
118 | |
119 | if (s->absolute) { | |
67a6fcb2 MAL |
120 | x = qemu_input_scale_axis(x, |
121 | INPUT_EVENT_ABS_MIN, INPUT_EVENT_ABS_MAX, | |
122 | VMMOUSE_MIN_X, VMMOUSE_MAX_X); | |
123 | y = qemu_input_scale_axis(y, | |
124 | INPUT_EVENT_ABS_MIN, INPUT_EVENT_ABS_MAX, | |
125 | VMMOUSE_MIN_Y, VMMOUSE_MAX_Y); | |
fdd64953 ZZ |
126 | } else{ |
127 | /* add for guest vmmouse driver to judge this is a relative packet. */ | |
128 | buttons |= VMMOUSE_RELATIVE_PACKET; | |
548df2ac TS |
129 | } |
130 | ||
131 | s->queue[s->nb_queue++] = buttons; | |
132 | s->queue[s->nb_queue++] = x; | |
133 | s->queue[s->nb_queue++] = y; | |
134 | s->queue[s->nb_queue++] = dz; | |
135 | ||
136 | /* need to still generate PS2 events to notify driver to | |
137 | read from queue */ | |
0fe4bb32 | 138 | i8042_isa_mouse_fake_event(s->i8042); |
548df2ac TS |
139 | } |
140 | ||
cd496926 | 141 | static void vmmouse_remove_handler(VMMouseState *s) |
548df2ac TS |
142 | { |
143 | if (s->entry) { | |
4ed59aa5 TS |
144 | qemu_remove_mouse_event_handler(s->entry); |
145 | s->entry = NULL; | |
548df2ac | 146 | } |
cd496926 GH |
147 | } |
148 | ||
149 | static void vmmouse_update_handler(VMMouseState *s, int absolute) | |
150 | { | |
151 | if (s->status != 0) { | |
152 | return; | |
153 | } | |
154 | if (s->absolute != absolute) { | |
155 | s->absolute = absolute; | |
156 | vmmouse_remove_handler(s); | |
157 | } | |
158 | if (s->entry == NULL) { | |
4ed59aa5 TS |
159 | s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event, |
160 | s, s->absolute, | |
161 | "vmmouse"); | |
cd496926 GH |
162 | qemu_activate_mouse_event_handler(s->entry); |
163 | } | |
548df2ac TS |
164 | } |
165 | ||
166 | static void vmmouse_read_id(VMMouseState *s) | |
167 | { | |
885f380f | 168 | trace_vmmouse_read_id(); |
548df2ac TS |
169 | |
170 | if (s->nb_queue == VMMOUSE_QUEUE_SIZE) | |
4ed59aa5 | 171 | return; |
548df2ac TS |
172 | |
173 | s->queue[s->nb_queue++] = VMMOUSE_VERSION; | |
174 | s->status = 0; | |
d99e8b5f | 175 | vmmouse_update_handler(s, s->absolute); |
548df2ac TS |
176 | } |
177 | ||
178 | static void vmmouse_request_relative(VMMouseState *s) | |
179 | { | |
885f380f MAL |
180 | trace_vmmouse_request_relative(); |
181 | ||
cd496926 | 182 | vmmouse_update_handler(s, 0); |
548df2ac TS |
183 | } |
184 | ||
185 | static void vmmouse_request_absolute(VMMouseState *s) | |
186 | { | |
885f380f MAL |
187 | trace_vmmouse_request_absolute(); |
188 | ||
cd496926 | 189 | vmmouse_update_handler(s, 1); |
548df2ac TS |
190 | } |
191 | ||
192 | static void vmmouse_disable(VMMouseState *s) | |
193 | { | |
885f380f MAL |
194 | trace_vmmouse_disable(); |
195 | ||
548df2ac | 196 | s->status = 0xffff; |
cd496926 | 197 | vmmouse_remove_handler(s); |
548df2ac TS |
198 | } |
199 | ||
200 | static void vmmouse_data(VMMouseState *s, uint32_t *data, uint32_t size) | |
201 | { | |
202 | int i; | |
203 | ||
885f380f | 204 | trace_vmmouse_data(size); |
548df2ac TS |
205 | |
206 | if (size == 0 || size > 6 || size > s->nb_queue) { | |
4ed59aa5 TS |
207 | printf("vmmouse: driver requested too much data %d\n", size); |
208 | s->status = 0xffff; | |
cd496926 | 209 | vmmouse_remove_handler(s); |
4ed59aa5 | 210 | return; |
548df2ac TS |
211 | } |
212 | ||
213 | for (i = 0; i < size; i++) | |
4ed59aa5 | 214 | data[i] = s->queue[i]; |
548df2ac TS |
215 | |
216 | s->nb_queue -= size; | |
217 | if (s->nb_queue) | |
4ed59aa5 | 218 | memmove(s->queue, &s->queue[size], sizeof(s->queue[0]) * s->nb_queue); |
548df2ac TS |
219 | } |
220 | ||
548df2ac TS |
221 | static uint32_t vmmouse_ioport_read(void *opaque, uint32_t addr) |
222 | { | |
223 | VMMouseState *s = opaque; | |
224 | uint32_t data[6]; | |
225 | uint16_t command; | |
226 | ||
227 | vmmouse_get_data(data); | |
548df2ac TS |
228 | |
229 | command = data[2] & 0xFFFF; | |
230 | ||
231 | switch (command) { | |
dcd938f0 | 232 | case VMPORT_CMD_VMMOUSE_STATUS: |
4ed59aa5 TS |
233 | data[0] = vmmouse_get_status(s); |
234 | break; | |
dcd938f0 | 235 | case VMPORT_CMD_VMMOUSE_COMMAND: |
4ed59aa5 TS |
236 | switch (data[1]) { |
237 | case VMMOUSE_DISABLE: | |
238 | vmmouse_disable(s); | |
239 | break; | |
240 | case VMMOUSE_READ_ID: | |
241 | vmmouse_read_id(s); | |
242 | break; | |
243 | case VMMOUSE_REQUEST_RELATIVE: | |
244 | vmmouse_request_relative(s); | |
245 | break; | |
246 | case VMMOUSE_REQUEST_ABSOLUTE: | |
247 | vmmouse_request_absolute(s); | |
248 | break; | |
249 | default: | |
250 | printf("vmmouse: unknown command %x\n", data[1]); | |
251 | break; | |
252 | } | |
253 | break; | |
dcd938f0 | 254 | case VMPORT_CMD_VMMOUSE_DATA: |
4ed59aa5 TS |
255 | vmmouse_data(s, data, data[1]); |
256 | break; | |
548df2ac | 257 | default: |
4ed59aa5 TS |
258 | printf("vmmouse: unknown command %x\n", command); |
259 | break; | |
548df2ac TS |
260 | } |
261 | ||
548df2ac TS |
262 | vmmouse_set_data(data); |
263 | return data[0]; | |
264 | } | |
265 | ||
e59fb374 | 266 | static int vmmouse_post_load(void *opaque, int version_id) |
548df2ac TS |
267 | { |
268 | VMMouseState *s = opaque; | |
548df2ac | 269 | |
cd496926 GH |
270 | vmmouse_remove_handler(s); |
271 | vmmouse_update_handler(s, s->absolute); | |
548df2ac TS |
272 | return 0; |
273 | } | |
274 | ||
bcb58d9a JQ |
275 | static const VMStateDescription vmstate_vmmouse = { |
276 | .name = "vmmouse", | |
277 | .version_id = 0, | |
278 | .minimum_version_id = 0, | |
bcb58d9a | 279 | .post_load = vmmouse_post_load, |
9231a017 | 280 | .fields = (const VMStateField[]) { |
d2164ad3 | 281 | VMSTATE_INT32_EQUAL(queue_size, VMMouseState, NULL), |
bcb58d9a JQ |
282 | VMSTATE_UINT32_ARRAY(queue, VMMouseState, VMMOUSE_QUEUE_SIZE), |
283 | VMSTATE_UINT16(nb_queue, VMMouseState), | |
284 | VMSTATE_UINT16(status, VMMouseState), | |
285 | VMSTATE_UINT8(absolute, VMMouseState), | |
286 | VMSTATE_END_OF_LIST() | |
287 | } | |
288 | }; | |
289 | ||
91c9e091 | 290 | static void vmmouse_reset(DeviceState *d) |
548df2ac | 291 | { |
e3b7fbea | 292 | VMMouseState *s = VMMOUSE(d); |
548df2ac | 293 | |
8668f61d | 294 | s->queue_size = VMMOUSE_QUEUE_SIZE; |
f685f451 | 295 | s->nb_queue = 0; |
069ab0eb GW |
296 | |
297 | vmmouse_disable(s); | |
91c9e091 | 298 | } |
548df2ac | 299 | |
db895a1e | 300 | static void vmmouse_realizefn(DeviceState *dev, Error **errp) |
91c9e091 | 301 | { |
e3b7fbea | 302 | VMMouseState *s = VMMOUSE(dev); |
548df2ac | 303 | |
885f380f | 304 | trace_vmmouse_init(); |
548df2ac | 305 | |
5a3a2eb3 PMD |
306 | if (!s->i8042) { |
307 | error_setg(errp, "'i8042' link is not set"); | |
308 | return; | |
309 | } | |
bb38df84 TH |
310 | if (!object_resolve_path_type("", TYPE_VMPORT, NULL)) { |
311 | error_setg(errp, "vmmouse needs a machine with vmport"); | |
312 | return; | |
313 | } | |
314 | ||
dcd938f0 LA |
315 | vmport_register(VMPORT_CMD_VMMOUSE_STATUS, vmmouse_ioport_read, s); |
316 | vmport_register(VMPORT_CMD_VMMOUSE_COMMAND, vmmouse_ioport_read, s); | |
317 | vmport_register(VMPORT_CMD_VMMOUSE_DATA, vmmouse_ioport_read, s); | |
91c9e091 BS |
318 | } |
319 | ||
39bffca2 | 320 | static Property vmmouse_properties[] = { |
0fe4bb32 | 321 | DEFINE_PROP_LINK("i8042", VMMouseState, i8042, TYPE_I8042, ISAKBDState *), |
39bffca2 AL |
322 | DEFINE_PROP_END_OF_LIST(), |
323 | }; | |
324 | ||
8f04ee08 AL |
325 | static void vmmouse_class_initfn(ObjectClass *klass, void *data) |
326 | { | |
39bffca2 | 327 | DeviceClass *dc = DEVICE_CLASS(klass); |
db895a1e AF |
328 | |
329 | dc->realize = vmmouse_realizefn; | |
39bffca2 AL |
330 | dc->reset = vmmouse_reset; |
331 | dc->vmsd = &vmstate_vmmouse; | |
4f67d30b | 332 | device_class_set_props(dc, vmmouse_properties); |
dbb6b0c7 | 333 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); |
8f04ee08 AL |
334 | } |
335 | ||
8c43a6f0 | 336 | static const TypeInfo vmmouse_info = { |
e3b7fbea | 337 | .name = TYPE_VMMOUSE, |
39bffca2 AL |
338 | .parent = TYPE_ISA_DEVICE, |
339 | .instance_size = sizeof(VMMouseState), | |
340 | .class_init = vmmouse_class_initfn, | |
91c9e091 BS |
341 | }; |
342 | ||
83f7d43a | 343 | static void vmmouse_register_types(void) |
91c9e091 | 344 | { |
39bffca2 | 345 | type_register_static(&vmmouse_info); |
548df2ac | 346 | } |
83f7d43a AF |
347 | |
348 | type_init(vmmouse_register_types) |