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1 | 548df2ac | ths | /*
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2 | 548df2ac | ths | * QEMU VMMouse emulation
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3 | 5fafdf24 | ths | *
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4 | 548df2ac | ths | * Copyright (C) 2007 Anthony Liguori <anthony@codemonkey.ws>
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5 | 5fafdf24 | ths | *
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6 | 548df2ac | ths | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 548df2ac | ths | * of this software and associated documentation files (the "Software"), to deal
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8 | 548df2ac | ths | * in the Software without restriction, including without limitation the rights
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9 | 548df2ac | ths | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 548df2ac | ths | * copies of the Software, and to permit persons to whom the Software is
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11 | 548df2ac | ths | * furnished to do so, subject to the following conditions:
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12 | 548df2ac | ths | *
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13 | 548df2ac | ths | * The above copyright notice and this permission notice shall be included in
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14 | 548df2ac | ths | * all copies or substantial portions of the Software.
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15 | 548df2ac | ths | *
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16 | 548df2ac | ths | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 548df2ac | ths | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 548df2ac | ths | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 548df2ac | ths | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 548df2ac | ths | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 548df2ac | ths | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 548df2ac | ths | * THE SOFTWARE.
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23 | 548df2ac | ths | */
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24 | 548df2ac | ths | #include "vl.h" |
25 | 548df2ac | ths | |
26 | 548df2ac | ths | /* debug only vmmouse */
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27 | 548df2ac | ths | //#define DEBUG_VMMOUSE
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28 | 548df2ac | ths | |
29 | 548df2ac | ths | /* VMMouse Commands */
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30 | 548df2ac | ths | #define VMMOUSE_GETVERSION 10 |
31 | 548df2ac | ths | #define VMMOUSE_DATA 39 |
32 | 548df2ac | ths | #define VMMOUSE_STATUS 40 |
33 | 548df2ac | ths | #define VMMOUSE_COMMAND 41 |
34 | 548df2ac | ths | |
35 | 548df2ac | ths | #define VMMOUSE_READ_ID 0x45414552 |
36 | 548df2ac | ths | #define VMMOUSE_DISABLE 0x000000f5 |
37 | 548df2ac | ths | #define VMMOUSE_REQUEST_RELATIVE 0x4c455252 |
38 | 548df2ac | ths | #define VMMOUSE_REQUEST_ABSOLUTE 0x53424152 |
39 | 548df2ac | ths | |
40 | 548df2ac | ths | #define VMMOUSE_QUEUE_SIZE 1024 |
41 | 548df2ac | ths | |
42 | 548df2ac | ths | #define VMMOUSE_VERSION 0x3442554a |
43 | 548df2ac | ths | |
44 | 548df2ac | ths | #ifdef DEBUG_VMMOUSE
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45 | 548df2ac | ths | #define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__) |
46 | 548df2ac | ths | #else
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47 | 548df2ac | ths | #define DPRINTF(fmt, ...) do { } while (0) |
48 | 548df2ac | ths | #endif
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49 | 548df2ac | ths | |
50 | 548df2ac | ths | typedef struct _VMMouseState |
51 | 548df2ac | ths | { |
52 | 548df2ac | ths | uint32_t queue[VMMOUSE_QUEUE_SIZE]; |
53 | 548df2ac | ths | uint16_t nb_queue; |
54 | 548df2ac | ths | uint16_t status; |
55 | 548df2ac | ths | uint8_t absolute; |
56 | 548df2ac | ths | QEMUPutMouseEntry *entry; |
57 | 548df2ac | ths | void *ps2_mouse;
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58 | 548df2ac | ths | } VMMouseState; |
59 | 548df2ac | ths | |
60 | 548df2ac | ths | static uint32_t vmmouse_get_status(VMMouseState *s)
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61 | 548df2ac | ths | { |
62 | 548df2ac | ths | DPRINTF("vmmouse_get_status()\n");
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63 | 548df2ac | ths | return (s->status << 16) | s->nb_queue; |
64 | 548df2ac | ths | } |
65 | 548df2ac | ths | |
66 | 548df2ac | ths | static void vmmouse_mouse_event(void *opaque, int x, int y, int dz, int buttons_state) |
67 | 548df2ac | ths | { |
68 | 548df2ac | ths | VMMouseState *s = opaque; |
69 | 548df2ac | ths | int buttons = 0; |
70 | 548df2ac | ths | |
71 | 548df2ac | ths | if (s->nb_queue > (VMMOUSE_QUEUE_SIZE - 4)) |
72 | 4ed59aa5 | ths | return;
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73 | 548df2ac | ths | |
74 | 548df2ac | ths | DPRINTF("vmmouse_mouse_event(%d, %d, %d, %d)\n",
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75 | 4ed59aa5 | ths | x, y, dz, buttons_state); |
76 | 548df2ac | ths | |
77 | 548df2ac | ths | if ((buttons_state & MOUSE_EVENT_LBUTTON))
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78 | 4ed59aa5 | ths | buttons |= 0x20;
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79 | 548df2ac | ths | if ((buttons_state & MOUSE_EVENT_RBUTTON))
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80 | 4ed59aa5 | ths | buttons |= 0x10;
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81 | 548df2ac | ths | if ((buttons_state & MOUSE_EVENT_MBUTTON))
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82 | 4ed59aa5 | ths | buttons |= 0x08;
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83 | 548df2ac | ths | |
84 | 548df2ac | ths | if (s->absolute) {
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85 | 4ed59aa5 | ths | x <<= 1;
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86 | 4ed59aa5 | ths | y <<= 1;
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87 | 548df2ac | ths | } |
88 | 548df2ac | ths | |
89 | 548df2ac | ths | s->queue[s->nb_queue++] = buttons; |
90 | 548df2ac | ths | s->queue[s->nb_queue++] = x; |
91 | 548df2ac | ths | s->queue[s->nb_queue++] = y; |
92 | 548df2ac | ths | s->queue[s->nb_queue++] = dz; |
93 | 548df2ac | ths | |
94 | 548df2ac | ths | /* need to still generate PS2 events to notify driver to
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95 | 548df2ac | ths | read from queue */
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96 | 548df2ac | ths | ps2_mouse_fake_event(s->ps2_mouse); |
97 | 548df2ac | ths | } |
98 | 548df2ac | ths | |
99 | 548df2ac | ths | static void vmmouse_update_handler(VMMouseState *s) |
100 | 548df2ac | ths | { |
101 | 548df2ac | ths | if (s->entry) {
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102 | 4ed59aa5 | ths | qemu_remove_mouse_event_handler(s->entry); |
103 | 4ed59aa5 | ths | s->entry = NULL;
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104 | 548df2ac | ths | } |
105 | 548df2ac | ths | if (s->status == 0) |
106 | 4ed59aa5 | ths | s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event, |
107 | 4ed59aa5 | ths | s, s->absolute, |
108 | 4ed59aa5 | ths | "vmmouse");
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109 | 548df2ac | ths | } |
110 | 548df2ac | ths | |
111 | 548df2ac | ths | static void vmmouse_read_id(VMMouseState *s) |
112 | 548df2ac | ths | { |
113 | 548df2ac | ths | DPRINTF("vmmouse_read_id()\n");
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114 | 548df2ac | ths | |
115 | 548df2ac | ths | if (s->nb_queue == VMMOUSE_QUEUE_SIZE)
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116 | 4ed59aa5 | ths | return;
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117 | 548df2ac | ths | |
118 | 548df2ac | ths | s->queue[s->nb_queue++] = VMMOUSE_VERSION; |
119 | 548df2ac | ths | s->status = 0;
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120 | 548df2ac | ths | vmmouse_update_handler(s); |
121 | 548df2ac | ths | } |
122 | 548df2ac | ths | |
123 | 548df2ac | ths | static void vmmouse_request_relative(VMMouseState *s) |
124 | 548df2ac | ths | { |
125 | 548df2ac | ths | DPRINTF("vmmouse_request_relative()\n");
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126 | 548df2ac | ths | s->absolute = 0;
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127 | 548df2ac | ths | vmmouse_update_handler(s); |
128 | 548df2ac | ths | } |
129 | 548df2ac | ths | |
130 | 548df2ac | ths | static void vmmouse_request_absolute(VMMouseState *s) |
131 | 548df2ac | ths | { |
132 | 548df2ac | ths | DPRINTF("vmmouse_request_absolute()\n");
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133 | 548df2ac | ths | s->absolute = 1;
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134 | 548df2ac | ths | vmmouse_update_handler(s); |
135 | 548df2ac | ths | } |
136 | 548df2ac | ths | |
137 | 548df2ac | ths | static void vmmouse_disable(VMMouseState *s) |
138 | 548df2ac | ths | { |
139 | 548df2ac | ths | DPRINTF("vmmouse_disable()\n");
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140 | 548df2ac | ths | s->status = 0xffff;
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141 | 548df2ac | ths | vmmouse_update_handler(s); |
142 | 548df2ac | ths | } |
143 | 548df2ac | ths | |
144 | 548df2ac | ths | static void vmmouse_data(VMMouseState *s, uint32_t *data, uint32_t size) |
145 | 548df2ac | ths | { |
146 | 548df2ac | ths | int i;
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147 | 548df2ac | ths | |
148 | 548df2ac | ths | DPRINTF("vmmouse_data(%d)\n", size);
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149 | 548df2ac | ths | |
150 | 548df2ac | ths | if (size == 0 || size > 6 || size > s->nb_queue) { |
151 | 4ed59aa5 | ths | printf("vmmouse: driver requested too much data %d\n", size);
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152 | 4ed59aa5 | ths | s->status = 0xffff;
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153 | 4ed59aa5 | ths | vmmouse_update_handler(s); |
154 | 4ed59aa5 | ths | return;
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155 | 548df2ac | ths | } |
156 | 548df2ac | ths | |
157 | 548df2ac | ths | for (i = 0; i < size; i++) |
158 | 4ed59aa5 | ths | data[i] = s->queue[i]; |
159 | 548df2ac | ths | |
160 | 548df2ac | ths | s->nb_queue -= size; |
161 | 548df2ac | ths | if (s->nb_queue)
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162 | 4ed59aa5 | ths | memmove(s->queue, &s->queue[size], sizeof(s->queue[0]) * s->nb_queue); |
163 | 548df2ac | ths | } |
164 | 548df2ac | ths | |
165 | 548df2ac | ths | static void vmmouse_get_data(uint32_t *data) |
166 | 548df2ac | ths | { |
167 | 548df2ac | ths | CPUState *env = cpu_single_env; |
168 | 548df2ac | ths | |
169 | 548df2ac | ths | data[0] = env->regs[R_EAX]; data[1] = env->regs[R_EBX]; |
170 | 548df2ac | ths | data[2] = env->regs[R_ECX]; data[3] = env->regs[R_EDX]; |
171 | 548df2ac | ths | data[4] = env->regs[R_ESI]; data[5] = env->regs[R_EDI]; |
172 | 548df2ac | ths | |
173 | 548df2ac | ths | DPRINTF("get_data = {%x, %x, %x, %x, %x, %x}\n",
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174 | 4ed59aa5 | ths | data[0], data[1], data[2], data[3], data[4], data[5]); |
175 | 548df2ac | ths | } |
176 | 548df2ac | ths | |
177 | 548df2ac | ths | static void vmmouse_set_data(const uint32_t *data) |
178 | 548df2ac | ths | { |
179 | 548df2ac | ths | CPUState *env = cpu_single_env; |
180 | 548df2ac | ths | |
181 | 548df2ac | ths | DPRINTF("set_data = {%x, %x, %x, %x, %x, %x}\n",
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182 | 4ed59aa5 | ths | data[0], data[1], data[2], data[3], data[4], data[5]); |
183 | 548df2ac | ths | |
184 | 548df2ac | ths | env->regs[R_EAX] = data[0]; env->regs[R_EBX] = data[1]; |
185 | 548df2ac | ths | env->regs[R_ECX] = data[2]; env->regs[R_EDX] = data[3]; |
186 | 548df2ac | ths | env->regs[R_ESI] = data[4]; env->regs[R_EDI] = data[5]; |
187 | 548df2ac | ths | } |
188 | 548df2ac | ths | |
189 | 548df2ac | ths | static uint32_t vmmouse_ioport_read(void *opaque, uint32_t addr) |
190 | 548df2ac | ths | { |
191 | 548df2ac | ths | VMMouseState *s = opaque; |
192 | 548df2ac | ths | uint32_t data[6];
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193 | 548df2ac | ths | uint16_t command; |
194 | 548df2ac | ths | |
195 | 548df2ac | ths | vmmouse_get_data(data); |
196 | 548df2ac | ths | |
197 | 548df2ac | ths | command = data[2] & 0xFFFF; |
198 | 548df2ac | ths | |
199 | 548df2ac | ths | switch (command) {
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200 | 548df2ac | ths | case VMMOUSE_STATUS:
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201 | 4ed59aa5 | ths | data[0] = vmmouse_get_status(s);
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202 | 4ed59aa5 | ths | break;
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203 | 548df2ac | ths | case VMMOUSE_COMMAND:
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204 | 4ed59aa5 | ths | switch (data[1]) { |
205 | 4ed59aa5 | ths | case VMMOUSE_DISABLE:
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206 | 4ed59aa5 | ths | vmmouse_disable(s); |
207 | 4ed59aa5 | ths | break;
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208 | 4ed59aa5 | ths | case VMMOUSE_READ_ID:
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209 | 4ed59aa5 | ths | vmmouse_read_id(s); |
210 | 4ed59aa5 | ths | break;
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211 | 4ed59aa5 | ths | case VMMOUSE_REQUEST_RELATIVE:
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212 | 4ed59aa5 | ths | vmmouse_request_relative(s); |
213 | 4ed59aa5 | ths | break;
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214 | 4ed59aa5 | ths | case VMMOUSE_REQUEST_ABSOLUTE:
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215 | 4ed59aa5 | ths | vmmouse_request_absolute(s); |
216 | 4ed59aa5 | ths | break;
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217 | 4ed59aa5 | ths | default:
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218 | 4ed59aa5 | ths | printf("vmmouse: unknown command %x\n", data[1]); |
219 | 4ed59aa5 | ths | break;
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220 | 4ed59aa5 | ths | } |
221 | 4ed59aa5 | ths | break;
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222 | 548df2ac | ths | case VMMOUSE_DATA:
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223 | 4ed59aa5 | ths | vmmouse_data(s, data, data[1]);
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224 | 4ed59aa5 | ths | break;
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225 | 548df2ac | ths | default:
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226 | 4ed59aa5 | ths | printf("vmmouse: unknown command %x\n", command);
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227 | 4ed59aa5 | ths | break;
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228 | 548df2ac | ths | } |
229 | 548df2ac | ths | |
230 | 548df2ac | ths | vmmouse_set_data(data); |
231 | 548df2ac | ths | return data[0]; |
232 | 548df2ac | ths | } |
233 | 548df2ac | ths | |
234 | 548df2ac | ths | static void vmmouse_save(QEMUFile *f, void *opaque) |
235 | 548df2ac | ths | { |
236 | 548df2ac | ths | VMMouseState *s = opaque; |
237 | 548df2ac | ths | int i;
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238 | 548df2ac | ths | |
239 | 548df2ac | ths | qemu_put_be32(f, VMMOUSE_QUEUE_SIZE); |
240 | 548df2ac | ths | for (i = 0; i < VMMOUSE_QUEUE_SIZE; i++) |
241 | 4ed59aa5 | ths | qemu_put_be32s(f, &s->queue[i]); |
242 | 548df2ac | ths | qemu_put_be16s(f, &s->nb_queue); |
243 | 548df2ac | ths | qemu_put_be16s(f, &s->status); |
244 | 548df2ac | ths | qemu_put_8s(f, &s->absolute); |
245 | 548df2ac | ths | } |
246 | 548df2ac | ths | |
247 | 548df2ac | ths | static int vmmouse_load(QEMUFile *f, void *opaque, int version_id) |
248 | 548df2ac | ths | { |
249 | 548df2ac | ths | VMMouseState *s = opaque; |
250 | 548df2ac | ths | int i;
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251 | 548df2ac | ths | |
252 | 548df2ac | ths | if (version_id != 0) |
253 | 548df2ac | ths | return -EINVAL;
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254 | 548df2ac | ths | |
255 | 548df2ac | ths | if (qemu_get_be32(f) != VMMOUSE_QUEUE_SIZE)
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256 | 4ed59aa5 | ths | return -EINVAL;
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257 | 548df2ac | ths | for (i = 0; i < VMMOUSE_QUEUE_SIZE; i++) |
258 | 4ed59aa5 | ths | qemu_get_be32s(f, &s->queue[i]); |
259 | 548df2ac | ths | qemu_get_be16s(f, &s->nb_queue); |
260 | 548df2ac | ths | qemu_get_be16s(f, &s->status); |
261 | 548df2ac | ths | qemu_get_8s(f, &s->absolute); |
262 | 548df2ac | ths | |
263 | 548df2ac | ths | vmmouse_update_handler(s); |
264 | 548df2ac | ths | |
265 | 548df2ac | ths | return 0; |
266 | 548df2ac | ths | } |
267 | 548df2ac | ths | |
268 | 548df2ac | ths | void *vmmouse_init(void *m) |
269 | 548df2ac | ths | { |
270 | 548df2ac | ths | VMMouseState *s = NULL;
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271 | 548df2ac | ths | |
272 | 548df2ac | ths | DPRINTF("vmmouse_init\n");
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273 | 548df2ac | ths | |
274 | 548df2ac | ths | s = qemu_mallocz(sizeof(VMMouseState));
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275 | 548df2ac | ths | if (!s)
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276 | 4ed59aa5 | ths | return NULL; |
277 | 548df2ac | ths | |
278 | 548df2ac | ths | s->status = 0xffff;
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279 | 548df2ac | ths | s->ps2_mouse = m; |
280 | 548df2ac | ths | |
281 | 93342807 | ths | vmport_register(VMMOUSE_STATUS, vmmouse_ioport_read, s); |
282 | 93342807 | ths | vmport_register(VMMOUSE_COMMAND, vmmouse_ioport_read, s); |
283 | 93342807 | ths | vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s); |
284 | 548df2ac | ths | register_savevm("vmmouse", 0, 0, vmmouse_save, vmmouse_load, s); |
285 | 548df2ac | ths | |
286 | 548df2ac | ths | return s;
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287 | 548df2ac | ths | } |