2 * QEMU VMMouse emulation
4 * Copyright (C) 2007 Anthony Liguori <anthony@codemonkey.ws>
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
26 /* debug only vmmouse */
27 //#define DEBUG_VMMOUSE
29 /* VMMouse Commands */
30 #define VMMOUSE_GETVERSION 10
31 #define VMMOUSE_DATA 39
32 #define VMMOUSE_STATUS 40
33 #define VMMOUSE_COMMAND 41
35 #define VMMOUSE_READ_ID 0x45414552
36 #define VMMOUSE_DISABLE 0x000000f5
37 #define VMMOUSE_REQUEST_RELATIVE 0x4c455252
38 #define VMMOUSE_REQUEST_ABSOLUTE 0x53424152
40 #define VMMOUSE_QUEUE_SIZE 1024
42 #define VMMOUSE_VERSION 0x3442554a
45 #define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)
47 #define DPRINTF(fmt, ...) do { } while (0)
50 typedef struct _VMMouseState
52 uint32_t queue
[VMMOUSE_QUEUE_SIZE
];
56 QEMUPutMouseEntry
*entry
;
60 static uint32_t vmmouse_get_status(VMMouseState
*s
)
62 DPRINTF("vmmouse_get_status()\n");
63 return (s
->status
<< 16) | s
->nb_queue
;
66 static void vmmouse_mouse_event(void *opaque
, int x
, int y
, int dz
, int buttons_state
)
68 VMMouseState
*s
= opaque
;
71 if (s
->nb_queue
> (VMMOUSE_QUEUE_SIZE
- 4))
74 DPRINTF("vmmouse_mouse_event(%d, %d, %d, %d)\n",
75 x
, y
, dz
, buttons_state
);
77 if ((buttons_state
& MOUSE_EVENT_LBUTTON
))
79 if ((buttons_state
& MOUSE_EVENT_RBUTTON
))
81 if ((buttons_state
& MOUSE_EVENT_MBUTTON
))
89 s
->queue
[s
->nb_queue
++] = buttons
;
90 s
->queue
[s
->nb_queue
++] = x
;
91 s
->queue
[s
->nb_queue
++] = y
;
92 s
->queue
[s
->nb_queue
++] = dz
;
94 /* need to still generate PS2 events to notify driver to
96 ps2_mouse_fake_event(s
->ps2_mouse
);
99 static void vmmouse_update_handler(VMMouseState
*s
)
102 qemu_remove_mouse_event_handler(s
->entry
);
106 s
->entry
= qemu_add_mouse_event_handler(vmmouse_mouse_event
,
111 static void vmmouse_read_id(VMMouseState
*s
)
113 DPRINTF("vmmouse_read_id()\n");
115 if (s
->nb_queue
== VMMOUSE_QUEUE_SIZE
)
118 s
->queue
[s
->nb_queue
++] = VMMOUSE_VERSION
;
120 vmmouse_update_handler(s
);
123 static void vmmouse_request_relative(VMMouseState
*s
)
125 DPRINTF("vmmouse_request_relative()\n");
127 vmmouse_update_handler(s
);
130 static void vmmouse_request_absolute(VMMouseState
*s
)
132 DPRINTF("vmmouse_request_absolute()\n");
134 vmmouse_update_handler(s
);
137 static void vmmouse_disable(VMMouseState
*s
)
139 DPRINTF("vmmouse_disable()\n");
141 vmmouse_update_handler(s
);
144 static void vmmouse_data(VMMouseState
*s
, uint32_t *data
, uint32_t size
)
148 DPRINTF("vmmouse_data(%d)\n", size
);
150 if (size
== 0 || size
> 6 || size
> s
->nb_queue
) {
151 printf("vmmouse: driver requested too much data %d\n", size
);
153 vmmouse_update_handler(s
);
157 for (i
= 0; i
< size
; i
++)
158 data
[i
] = s
->queue
[i
];
162 memmove(s
->queue
, &s
->queue
[size
], sizeof(s
->queue
[0]) * s
->nb_queue
);
165 static void vmmouse_get_data(uint32_t *data
)
167 CPUState
*env
= cpu_single_env
;
169 data
[0] = env
->regs
[R_EAX
]; data
[1] = env
->regs
[R_EBX
];
170 data
[2] = env
->regs
[R_ECX
]; data
[3] = env
->regs
[R_EDX
];
171 data
[4] = env
->regs
[R_ESI
]; data
[5] = env
->regs
[R_EDI
];
173 DPRINTF("get_data = {%x, %x, %x, %x, %x, %x}\n",
174 data
[0], data
[1], data
[2], data
[3], data
[4], data
[5]);
177 static void vmmouse_set_data(const uint32_t *data
)
179 CPUState
*env
= cpu_single_env
;
181 DPRINTF("set_data = {%x, %x, %x, %x, %x, %x}\n",
182 data
[0], data
[1], data
[2], data
[3], data
[4], data
[5]);
184 env
->regs
[R_EAX
] = data
[0]; env
->regs
[R_EBX
] = data
[1];
185 env
->regs
[R_ECX
] = data
[2]; env
->regs
[R_EDX
] = data
[3];
186 env
->regs
[R_ESI
] = data
[4]; env
->regs
[R_EDI
] = data
[5];
189 static uint32_t vmmouse_ioport_read(void *opaque
, uint32_t addr
)
191 VMMouseState
*s
= opaque
;
195 vmmouse_get_data(data
);
197 command
= data
[2] & 0xFFFF;
201 data
[0] = vmmouse_get_status(s
);
203 case VMMOUSE_COMMAND
:
205 case VMMOUSE_DISABLE
:
208 case VMMOUSE_READ_ID
:
211 case VMMOUSE_REQUEST_RELATIVE
:
212 vmmouse_request_relative(s
);
214 case VMMOUSE_REQUEST_ABSOLUTE
:
215 vmmouse_request_absolute(s
);
218 printf("vmmouse: unknown command %x\n", data
[1]);
223 vmmouse_data(s
, data
, data
[1]);
226 printf("vmmouse: unknown command %x\n", command
);
230 vmmouse_set_data(data
);
234 static void vmmouse_save(QEMUFile
*f
, void *opaque
)
236 VMMouseState
*s
= opaque
;
239 qemu_put_be32(f
, VMMOUSE_QUEUE_SIZE
);
240 for (i
= 0; i
< VMMOUSE_QUEUE_SIZE
; i
++)
241 qemu_put_be32s(f
, &s
->queue
[i
]);
242 qemu_put_be16s(f
, &s
->nb_queue
);
243 qemu_put_be16s(f
, &s
->status
);
244 qemu_put_8s(f
, &s
->absolute
);
247 static int vmmouse_load(QEMUFile
*f
, void *opaque
, int version_id
)
249 VMMouseState
*s
= opaque
;
255 if (qemu_get_be32(f
) != VMMOUSE_QUEUE_SIZE
)
257 for (i
= 0; i
< VMMOUSE_QUEUE_SIZE
; i
++)
258 qemu_get_be32s(f
, &s
->queue
[i
]);
259 qemu_get_be16s(f
, &s
->nb_queue
);
260 qemu_get_be16s(f
, &s
->status
);
261 qemu_get_8s(f
, &s
->absolute
);
263 vmmouse_update_handler(s
);
268 void *vmmouse_init(void *m
)
270 VMMouseState
*s
= NULL
;
272 DPRINTF("vmmouse_init\n");
274 s
= qemu_mallocz(sizeof(VMMouseState
));
281 vmport_register(VMMOUSE_STATUS
, vmmouse_ioport_read
, s
);
282 vmport_register(VMMOUSE_COMMAND
, vmmouse_ioport_read
, s
);
283 vmport_register(VMMOUSE_DATA
, vmmouse_ioport_read
, s
);
284 register_savevm("vmmouse", 0, 0, vmmouse_save
, vmmouse_load
, s
);