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" |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 28 | #include "qdev.h" |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 29 | |
| 30 | /* debug only vmmouse */ |
| 31 | //#define DEBUG_VMMOUSE |
| 32 | |
| 33 | /* VMMouse Commands */ |
| 34 | #define VMMOUSE_GETVERSION 10 |
| 35 | #define VMMOUSE_DATA 39 |
| 36 | #define VMMOUSE_STATUS 40 |
| 37 | #define VMMOUSE_COMMAND 41 |
| 38 | |
| 39 | #define VMMOUSE_READ_ID 0x45414552 |
| 40 | #define VMMOUSE_DISABLE 0x000000f5 |
| 41 | #define VMMOUSE_REQUEST_RELATIVE 0x4c455252 |
| 42 | #define VMMOUSE_REQUEST_ABSOLUTE 0x53424152 |
| 43 | |
| 44 | #define VMMOUSE_QUEUE_SIZE 1024 |
| 45 | |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 46 | #define VMMOUSE_VERSION 0x3442554a |
| 47 | |
| 48 | #ifdef DEBUG_VMMOUSE |
| 49 | #define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__) |
| 50 | #else |
| 51 | #define DPRINTF(fmt, ...) do { } while (0) |
| 52 | #endif |
| 53 | |
| 54 | typedef struct _VMMouseState |
| 55 | { |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 56 | ISADevice dev; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 57 | uint32_t queue[VMMOUSE_QUEUE_SIZE]; |
Juan Quintela | bcb58d9 | 2009-09-10 03:04:40 +0200 | [diff] [blame] | 58 | int32_t queue_size; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 59 | uint16_t nb_queue; |
| 60 | uint16_t status; |
| 61 | uint8_t absolute; |
| 62 | QEMUPutMouseEntry *entry; |
| 63 | void *ps2_mouse; |
| 64 | } VMMouseState; |
| 65 | |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 66 | static uint32_t vmmouse_get_status(VMMouseState *s) |
| 67 | { |
| 68 | DPRINTF("vmmouse_get_status()\n"); |
| 69 | return (s->status << 16) | s->nb_queue; |
| 70 | } |
| 71 | |
| 72 | static void vmmouse_mouse_event(void *opaque, int x, int y, int dz, int buttons_state) |
| 73 | { |
| 74 | VMMouseState *s = opaque; |
| 75 | int buttons = 0; |
| 76 | |
| 77 | if (s->nb_queue > (VMMOUSE_QUEUE_SIZE - 4)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 78 | return; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 79 | |
| 80 | DPRINTF("vmmouse_mouse_event(%d, %d, %d, %d)\n", |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 81 | x, y, dz, buttons_state); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 82 | |
| 83 | if ((buttons_state & MOUSE_EVENT_LBUTTON)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 84 | buttons |= 0x20; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 85 | if ((buttons_state & MOUSE_EVENT_RBUTTON)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 86 | buttons |= 0x10; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 87 | if ((buttons_state & MOUSE_EVENT_MBUTTON)) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 88 | buttons |= 0x08; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 89 | |
| 90 | if (s->absolute) { |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 91 | x <<= 1; |
| 92 | y <<= 1; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | s->queue[s->nb_queue++] = buttons; |
| 96 | s->queue[s->nb_queue++] = x; |
| 97 | s->queue[s->nb_queue++] = y; |
| 98 | s->queue[s->nb_queue++] = dz; |
| 99 | |
| 100 | /* need to still generate PS2 events to notify driver to |
| 101 | read from queue */ |
Blue Swirl | 956a3e6 | 2010-05-22 07:59:01 +0000 | [diff] [blame] | 102 | i8042_isa_mouse_fake_event(s->ps2_mouse); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 103 | } |
| 104 | |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 105 | static void vmmouse_remove_handler(VMMouseState *s) |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 106 | { |
| 107 | if (s->entry) { |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 108 | qemu_remove_mouse_event_handler(s->entry); |
| 109 | s->entry = NULL; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 110 | } |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | static void vmmouse_update_handler(VMMouseState *s, int absolute) |
| 114 | { |
| 115 | if (s->status != 0) { |
| 116 | return; |
| 117 | } |
| 118 | if (s->absolute != absolute) { |
| 119 | s->absolute = absolute; |
| 120 | vmmouse_remove_handler(s); |
| 121 | } |
| 122 | if (s->entry == NULL) { |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 123 | s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event, |
| 124 | s, s->absolute, |
| 125 | "vmmouse"); |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 126 | qemu_activate_mouse_event_handler(s->entry); |
| 127 | } |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | static void vmmouse_read_id(VMMouseState *s) |
| 131 | { |
| 132 | DPRINTF("vmmouse_read_id()\n"); |
| 133 | |
| 134 | if (s->nb_queue == VMMOUSE_QUEUE_SIZE) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 135 | return; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 136 | |
| 137 | s->queue[s->nb_queue++] = VMMOUSE_VERSION; |
| 138 | s->status = 0; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | static void vmmouse_request_relative(VMMouseState *s) |
| 142 | { |
| 143 | DPRINTF("vmmouse_request_relative()\n"); |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 144 | vmmouse_update_handler(s, 0); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | static void vmmouse_request_absolute(VMMouseState *s) |
| 148 | { |
| 149 | DPRINTF("vmmouse_request_absolute()\n"); |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 150 | vmmouse_update_handler(s, 1); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | static void vmmouse_disable(VMMouseState *s) |
| 154 | { |
| 155 | DPRINTF("vmmouse_disable()\n"); |
| 156 | s->status = 0xffff; |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 157 | vmmouse_remove_handler(s); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | static void vmmouse_data(VMMouseState *s, uint32_t *data, uint32_t size) |
| 161 | { |
| 162 | int i; |
| 163 | |
| 164 | DPRINTF("vmmouse_data(%d)\n", size); |
| 165 | |
| 166 | if (size == 0 || size > 6 || size > s->nb_queue) { |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 167 | printf("vmmouse: driver requested too much data %d\n", size); |
| 168 | s->status = 0xffff; |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 169 | vmmouse_remove_handler(s); |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 170 | return; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | for (i = 0; i < size; i++) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 174 | data[i] = s->queue[i]; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 175 | |
| 176 | s->nb_queue -= size; |
| 177 | if (s->nb_queue) |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 178 | memmove(s->queue, &s->queue[size], sizeof(s->queue[0]) * s->nb_queue); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 179 | } |
| 180 | |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 181 | static uint32_t vmmouse_ioport_read(void *opaque, uint32_t addr) |
| 182 | { |
| 183 | VMMouseState *s = opaque; |
| 184 | uint32_t data[6]; |
| 185 | uint16_t command; |
| 186 | |
| 187 | vmmouse_get_data(data); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 188 | |
| 189 | command = data[2] & 0xFFFF; |
| 190 | |
| 191 | switch (command) { |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 192 | case VMMOUSE_STATUS: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 193 | data[0] = vmmouse_get_status(s); |
| 194 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 195 | case VMMOUSE_COMMAND: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 196 | switch (data[1]) { |
| 197 | case VMMOUSE_DISABLE: |
| 198 | vmmouse_disable(s); |
| 199 | break; |
| 200 | case VMMOUSE_READ_ID: |
| 201 | vmmouse_read_id(s); |
| 202 | break; |
| 203 | case VMMOUSE_REQUEST_RELATIVE: |
| 204 | vmmouse_request_relative(s); |
| 205 | break; |
| 206 | case VMMOUSE_REQUEST_ABSOLUTE: |
| 207 | vmmouse_request_absolute(s); |
| 208 | break; |
| 209 | default: |
| 210 | printf("vmmouse: unknown command %x\n", data[1]); |
| 211 | break; |
| 212 | } |
| 213 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 214 | case VMMOUSE_DATA: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 215 | vmmouse_data(s, data, data[1]); |
| 216 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 217 | default: |
ths | 4ed59aa | 2007-08-26 17:45:23 +0000 | [diff] [blame] | 218 | printf("vmmouse: unknown command %x\n", command); |
| 219 | break; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 220 | } |
| 221 | |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 222 | vmmouse_set_data(data); |
| 223 | return data[0]; |
| 224 | } |
| 225 | |
Juan Quintela | e59fb37 | 2009-09-29 22:48:21 +0200 | [diff] [blame] | 226 | static int vmmouse_post_load(void *opaque, int version_id) |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 227 | { |
| 228 | VMMouseState *s = opaque; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 229 | |
Gerd Hoffmann | cd49692 | 2010-10-08 12:30:13 +0200 | [diff] [blame] | 230 | vmmouse_remove_handler(s); |
| 231 | vmmouse_update_handler(s, s->absolute); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 232 | return 0; |
| 233 | } |
| 234 | |
Juan Quintela | bcb58d9 | 2009-09-10 03:04:40 +0200 | [diff] [blame] | 235 | static const VMStateDescription vmstate_vmmouse = { |
| 236 | .name = "vmmouse", |
| 237 | .version_id = 0, |
| 238 | .minimum_version_id = 0, |
| 239 | .minimum_version_id_old = 0, |
| 240 | .post_load = vmmouse_post_load, |
| 241 | .fields = (VMStateField []) { |
| 242 | VMSTATE_INT32_EQUAL(queue_size, VMMouseState), |
| 243 | VMSTATE_UINT32_ARRAY(queue, VMMouseState, VMMOUSE_QUEUE_SIZE), |
| 244 | VMSTATE_UINT16(nb_queue, VMMouseState), |
| 245 | VMSTATE_UINT16(status, VMMouseState), |
| 246 | VMSTATE_UINT8(absolute, VMMouseState), |
| 247 | VMSTATE_END_OF_LIST() |
| 248 | } |
| 249 | }; |
| 250 | |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 251 | static void vmmouse_reset(DeviceState *d) |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 252 | { |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 253 | VMMouseState *s = container_of(d, VMMouseState, dev.qdev); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 254 | |
| 255 | s->status = 0xffff; |
Blue Swirl | 8668f61 | 2011-02-12 17:44:11 +0000 | [diff] [blame] | 256 | s->queue_size = VMMOUSE_QUEUE_SIZE; |
Gerhard Wiesinger | 069ab0e | 2012-01-25 21:04:14 +0100 | [diff] [blame] | 257 | |
| 258 | vmmouse_disable(s); |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | static int vmmouse_initfn(ISADevice *dev) |
| 262 | { |
| 263 | VMMouseState *s = DO_UPCAST(VMMouseState, dev, dev); |
| 264 | |
| 265 | DPRINTF("vmmouse_init\n"); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 266 | |
ths | 9334280 | 2007-08-26 17:46:38 +0000 | [diff] [blame] | 267 | vmport_register(VMMOUSE_STATUS, vmmouse_ioport_read, s); |
| 268 | vmport_register(VMMOUSE_COMMAND, vmmouse_ioport_read, s); |
| 269 | vmport_register(VMMOUSE_DATA, vmmouse_ioport_read, s); |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 270 | |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 271 | return 0; |
ths | 548df2a | 2007-03-20 16:45:27 +0000 | [diff] [blame] | 272 | } |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 273 | |
Anthony Liguori | 39bffca | 2011-12-07 21:34:16 -0600 | [diff] [blame] | 274 | static Property vmmouse_properties[] = { |
| 275 | DEFINE_PROP_PTR("ps2_mouse", VMMouseState, ps2_mouse), |
| 276 | DEFINE_PROP_END_OF_LIST(), |
| 277 | }; |
| 278 | |
Anthony Liguori | 8f04ee0 | 2011-12-04 11:52:49 -0600 | [diff] [blame] | 279 | static void vmmouse_class_initfn(ObjectClass *klass, void *data) |
| 280 | { |
Anthony Liguori | 39bffca | 2011-12-07 21:34:16 -0600 | [diff] [blame] | 281 | DeviceClass *dc = DEVICE_CLASS(klass); |
Anthony Liguori | 8f04ee0 | 2011-12-04 11:52:49 -0600 | [diff] [blame] | 282 | ISADeviceClass *ic = ISA_DEVICE_CLASS(klass); |
| 283 | ic->init = vmmouse_initfn; |
Anthony Liguori | 39bffca | 2011-12-07 21:34:16 -0600 | [diff] [blame] | 284 | dc->no_user = 1; |
| 285 | dc->reset = vmmouse_reset; |
| 286 | dc->vmsd = &vmstate_vmmouse; |
| 287 | dc->props = vmmouse_properties; |
Anthony Liguori | 8f04ee0 | 2011-12-04 11:52:49 -0600 | [diff] [blame] | 288 | } |
| 289 | |
Anthony Liguori | 39bffca | 2011-12-07 21:34:16 -0600 | [diff] [blame] | 290 | static TypeInfo vmmouse_info = { |
| 291 | .name = "vmmouse", |
| 292 | .parent = TYPE_ISA_DEVICE, |
| 293 | .instance_size = sizeof(VMMouseState), |
| 294 | .class_init = vmmouse_class_initfn, |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 295 | }; |
| 296 | |
Andreas Färber | 83f7d43 | 2012-02-09 15:20:55 +0100 | [diff] [blame] | 297 | static void vmmouse_register_types(void) |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 298 | { |
Anthony Liguori | 39bffca | 2011-12-07 21:34:16 -0600 | [diff] [blame] | 299 | type_register_static(&vmmouse_info); |
Blue Swirl | 91c9e09 | 2011-02-05 14:34:45 +0000 | [diff] [blame] | 300 | } |
Andreas Färber | 83f7d43 | 2012-02-09 15:20:55 +0100 | [diff] [blame] | 301 | |
| 302 | type_init(vmmouse_register_types) |