ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU VMMouse emulation |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 4 | * Copyright (C) 2007 Anthony Liguori <anthony@codemonkey.ws> |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 5 | * |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 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 | */ |
pbrook | 87ecb68 | 2007-11-17 17:14:51 +0000 | [diff] [blame] | 24 | #include "hw.h" |
| 25 | #include "console.h" |
| 26 | #include "ps2.h" |
| 27 | #include "pc.h" |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 28 | |
| 29 | /* debug only vmmouse */ |
| 30 | //#define DEBUG_VMMOUSE |
| 31 | |
| 32 | /* VMMouse Commands */ |
| 33 | #define VMMOUSE_GETVERSION 10 |
| 34 | #define VMMOUSE_DATA 39 |
| 35 | #define VMMOUSE_STATUS 40 |
| 36 | #define VMMOUSE_COMMAND 41 |
| 37 | |
| 38 | #define VMMOUSE_READ_ID 0x45414552 |
| 39 | #define VMMOUSE_DISABLE 0x000000f5 |
| 40 | #define VMMOUSE_REQUEST_RELATIVE 0x4c455252 |
| 41 | #define VMMOUSE_REQUEST_ABSOLUTE 0x53424152 |
| 42 | |
| 43 | #define VMMOUSE_QUEUE_SIZE 1024 |
| 44 | |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 45 | #define VMMOUSE_VERSION 0x3442554a |
| 46 | |
| 47 | #ifdef DEBUG_VMMOUSE |
| 48 | #define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__) |
| 49 | #else |
| 50 | #define DPRINTF(fmt, ...) do { } while (0) |
| 51 | #endif |
| 52 | |
| 53 | typedef struct _VMMouseState |
| 54 | { |
| 55 | uint32_t queue[VMMOUSE_QUEUE_SIZE]; |
| 56 | uint16_t nb_queue; |
| 57 | uint16_t status; |
| 58 | uint8_t absolute; |
| 59 | QEMUPutMouseEntry *entry; |
| 60 | void *ps2_mouse; |
| 61 | } VMMouseState; |
| 62 | |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 63 | static uint32_t vmmouse_get_status(VMMouseState *s) |
| 64 | { |
| 65 | DPRINTF("vmmouse_get_status()\n"); |
| 66 | return (s->status << 16) | s->nb_queue; |
| 67 | } |
| 68 | |
| 69 | static void vmmouse_mouse_event(void *opaque, int x, int y, int dz, int buttons_state) |
| 70 | { |
| 71 | VMMouseState *s = opaque; |
| 72 | int buttons = 0; |
| 73 | |
| 74 | if (s->nb_queue > (VMMOUSE_QUEUE_SIZE - 4)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 75 | return; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 76 | |
| 77 | DPRINTF("vmmouse_mouse_event(%d, %d, %d, %d)\n", |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 78 | x, y, dz, buttons_state); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 79 | |
| 80 | if ((buttons_state & MOUSE_EVENT_LBUTTON)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 81 | buttons |= 0x20; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 82 | if ((buttons_state & MOUSE_EVENT_RBUTTON)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 83 | buttons |= 0x10; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 84 | if ((buttons_state & MOUSE_EVENT_MBUTTON)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 85 | buttons |= 0x08; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 86 | |
| 87 | if (s->absolute) { |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 88 | x <<= 1; |
| 89 | y <<= 1; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | s->queue[s->nb_queue++] = buttons; |
| 93 | s->queue[s->nb_queue++] = x; |
| 94 | s->queue[s->nb_queue++] = y; |
| 95 | s->queue[s->nb_queue++] = dz; |
| 96 | |
| 97 | /* need to still generate PS2 events to notify driver to |
| 98 | read from queue */ |
| 99 | ps2_mouse_fake_event(s->ps2_mouse); |
| 100 | } |
| 101 | |
| 102 | static void vmmouse_update_handler(VMMouseState *s) |
| 103 | { |
| 104 | if (s->entry) { |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 105 | qemu_remove_mouse_event_handler(s->entry); |
| 106 | s->entry = NULL; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 107 | } |
| 108 | if (s->status == 0) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 109 | s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event, |
| 110 | s, s->absolute, |
| 111 | "vmmouse"); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | static void vmmouse_read_id(VMMouseState *s) |
| 115 | { |
| 116 | DPRINTF("vmmouse_read_id()\n"); |
| 117 | |
| 118 | if (s->nb_queue == VMMOUSE_QUEUE_SIZE) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 119 | return; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 120 | |
| 121 | s->queue[s->nb_queue++] = VMMOUSE_VERSION; |
| 122 | s->status = 0; |
| 123 | vmmouse_update_handler(s); |
| 124 | } |
| 125 | |
| 126 | static void vmmouse_request_relative(VMMouseState *s) |
| 127 | { |
| 128 | DPRINTF("vmmouse_request_relative()\n"); |
| 129 | s->absolute = 0; |
| 130 | vmmouse_update_handler(s); |
| 131 | } |
| 132 | |
| 133 | static void vmmouse_request_absolute(VMMouseState *s) |
| 134 | { |
| 135 | DPRINTF("vmmouse_request_absolute()\n"); |
| 136 | s->absolute = 1; |
| 137 | vmmouse_update_handler(s); |
| 138 | } |
| 139 | |
| 140 | static void vmmouse_disable(VMMouseState *s) |
| 141 | { |
| 142 | DPRINTF("vmmouse_disable()\n"); |
| 143 | s->status = 0xffff; |
| 144 | vmmouse_update_handler(s); |
| 145 | } |
| 146 | |
| 147 | static void vmmouse_data(VMMouseState *s, uint32_t *data, uint32_t size) |
| 148 | { |
| 149 | int i; |
| 150 | |
| 151 | DPRINTF("vmmouse_data(%d)\n", size); |
| 152 | |
| 153 | if (size == 0 || size > 6 || size > s->nb_queue) { |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 154 | printf("vmmouse: driver requested too much data %d\n", size); |
| 155 | s->status = 0xffff; |
| 156 | vmmouse_update_handler(s); |
| 157 | return; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | for (i = 0; i < size; i++) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 161 | data[i] = s->queue[i]; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 162 | |
| 163 | s->nb_queue -= size; |
| 164 | if (s->nb_queue) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 165 | memmove(s->queue, &s->queue[size], sizeof(s->queue[0]) * s->nb_queue); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | static void vmmouse_get_data(uint32_t *data) |
| 169 | { |
| 170 | CPUState *env = cpu_single_env; |
| 171 | |
| 172 | data[0] = env->regs[R_EAX]; data[1] = env->regs[R_EBX]; |
| 173 | data[2] = env->regs[R_ECX]; data[3] = env->regs[R_EDX]; |
| 174 | data[4] = env->regs[R_ESI]; data[5] = env->regs[R_EDI]; |
| 175 | |
| 176 | DPRINTF("get_data = {%x, %x, %x, %x, %x, %x}\n", |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 177 | data[0], data[1], data[2], data[3], data[4], data[5]); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 178 | } |
| 179 | |
| 180 | static void vmmouse_set_data(const uint32_t *data) |
| 181 | { |
| 182 | CPUState *env = cpu_single_env; |
| 183 | |
| 184 | DPRINTF("set_data = {%x, %x, %x, %x, %x, %x}\n", |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 185 | data[0], data[1], data[2], data[3], data[4], data[5]); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 186 | |
| 187 | env->regs[R_EAX] = data[0]; env->regs[R_EBX] = data[1]; |
| 188 | env->regs[R_ECX] = data[2]; env->regs[R_EDX] = data[3]; |
| 189 | env->regs[R_ESI] = data[4]; env->regs[R_EDI] = data[5]; |
| 190 | } |
| 191 | |
| 192 | static uint32_t vmmouse_ioport_read(void *opaque, uint32_t addr) |
| 193 | { |
| 194 | VMMouseState *s = opaque; |
| 195 | uint32_t data[6]; |
| 196 | uint16_t command; |
| 197 | |
| 198 | vmmouse_get_data(data); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 199 | |
| 200 | command = data[2] & 0xFFFF; |
| 201 | |
| 202 | switch (command) { |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 203 | case VMMOUSE_STATUS: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 204 | data[0] = vmmouse_get_status(s); |
| 205 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 206 | case VMMOUSE_COMMAND: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 207 | switch (data[1]) { |
| 208 | case VMMOUSE_DISABLE: |
| 209 | vmmouse_disable(s); |
| 210 | break; |
| 211 | case VMMOUSE_READ_ID: |
| 212 | vmmouse_read_id(s); |
| 213 | break; |
| 214 | case VMMOUSE_REQUEST_RELATIVE: |
| 215 | vmmouse_request_relative(s); |
| 216 | break; |
| 217 | case VMMOUSE_REQUEST_ABSOLUTE: |
| 218 | vmmouse_request_absolute(s); |
| 219 | break; |
| 220 | default: |
| 221 | printf("vmmouse: unknown command %x\n", data[1]); |
| 222 | break; |
| 223 | } |
| 224 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 225 | case VMMOUSE_DATA: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 226 | vmmouse_data(s, data, data[1]); |
| 227 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 228 | default: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 229 | printf("vmmouse: unknown command %x\n", command); |
| 230 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 231 | } |
| 232 | |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 233 | vmmouse_set_data(data); |
| 234 | return data[0]; |
| 235 | } |
| 236 | |
| 237 | static void vmmouse_save(QEMUFile *f, void *opaque) |
| 238 | { |
| 239 | VMMouseState *s = opaque; |
| 240 | int i; |
| 241 | |
| 242 | qemu_put_be32(f, VMMOUSE_QUEUE_SIZE); |
| 243 | for (i = 0; i < VMMOUSE_QUEUE_SIZE; i++) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 244 | qemu_put_be32s(f, &s->queue[i]); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 245 | qemu_put_be16s(f, &s->nb_queue); |
| 246 | qemu_put_be16s(f, &s->status); |
| 247 | qemu_put_8s(f, &s->absolute); |
| 248 | } |
| 249 | |
| 250 | static int vmmouse_load(QEMUFile *f, void *opaque, int version_id) |
| 251 | { |
| 252 | VMMouseState *s = opaque; |
| 253 | int i; |
| 254 | |
| 255 | if (version_id != 0) |
| 256 | return -EINVAL; |
| 257 | |
| 258 | if (qemu_get_be32(f) != VMMOUSE_QUEUE_SIZE) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 259 | return -EINVAL; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 260 | for (i = 0; i < VMMOUSE_QUEUE_SIZE; i++) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 261 | qemu_get_be32s(f, &s->queue[i]); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 262 | qemu_get_be16s(f, &s->nb_queue); |
| 263 | qemu_get_be16s(f, &s->status); |
| 264 | qemu_get_8s(f, &s->absolute); |
| 265 | |
| 266 | vmmouse_update_handler(s); |
| 267 | |
| 268 | return 0; |
| 269 | } |
| 270 | |
| 271 | void *vmmouse_init(void *m) |
| 272 | { |
| 273 | VMMouseState *s = NULL; |
| 274 | |
| 275 | DPRINTF("vmmouse_init\n"); |
| 276 | |
| 277 | s = qemu_mallocz(sizeof(VMMouseState)); |
| 278 | if (!s) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 279 | return NULL; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 280 | |
| 281 | s->status = 0xffff; |
| 282 | s->ps2_mouse = m; |
| 283 | |
ths | 9334280 | 2007-08-26 17:46:38 +0000 | [diff] [blame] | 284 | vmport_register(VMMOUSE_STATUS, vmmouse_ioport_read, s); |
| 285 | vmport_register(VMMOUSE_COMMAND, vmmouse_ioport_read, s); |
| 286 | vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 287 | register_savevm("vmmouse", 0, 0, vmmouse_save, vmmouse_load, s); |
| 288 | |
| 289 | return s; |
| 290 | } |
| 291 | |