2 * QEMU ADB mouse support
4 * Copyright (c) 2004 Fabrice Bellard
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
24 #include "qemu/osdep.h"
25 #include "ui/console.h"
26 #include "hw/input/adb.h"
27 #include "adb-internal.h"
30 #define ADB_MOUSE(obj) OBJECT_CHECK(MouseState, (obj), TYPE_ADB_MOUSE)
32 typedef struct MouseState
{
37 int buttons_state
, last_buttons_state
;
41 #define ADB_MOUSE_CLASS(class) \
42 OBJECT_CLASS_CHECK(ADBMouseClass, (class), TYPE_ADB_MOUSE)
43 #define ADB_MOUSE_GET_CLASS(obj) \
44 OBJECT_GET_CLASS(ADBMouseClass, (obj), TYPE_ADB_MOUSE)
46 typedef struct ADBMouseClass
{
48 ADBDeviceClass parent_class
;
51 DeviceRealize parent_realize
;
54 static void adb_mouse_event(void *opaque
,
55 int dx1
, int dy1
, int dz1
, int buttons_state
)
57 MouseState
*s
= opaque
;
62 s
->buttons_state
= buttons_state
;
66 static int adb_mouse_poll(ADBDevice
*d
, uint8_t *obuf
)
68 MouseState
*s
= ADB_MOUSE(d
);
71 if (s
->last_buttons_state
== s
->buttons_state
&&
72 s
->dx
== 0 && s
->dy
== 0) {
92 s
->last_buttons_state
= s
->buttons_state
;
97 if (!(s
->buttons_state
& MOUSE_EVENT_LBUTTON
)) {
100 if (!(s
->buttons_state
& MOUSE_EVENT_RBUTTON
)) {
109 static int adb_mouse_request(ADBDevice
*d
, uint8_t *obuf
,
110 const uint8_t *buf
, int len
)
112 MouseState
*s
= ADB_MOUSE(d
);
115 if ((buf
[0] & 0x0f) == ADB_FLUSH
) {
116 /* flush mouse fifo */
117 s
->buttons_state
= s
->last_buttons_state
;
121 trace_adb_mouse_flush();
130 trace_adb_mouse_writereg(reg
, buf
[1]);
136 case ADB_CMD_SELF_TEST
:
138 case ADB_CMD_CHANGE_ID
:
139 case ADB_CMD_CHANGE_ID_AND_ACT
:
140 case ADB_CMD_CHANGE_ID_AND_ENABLE
:
141 d
->devaddr
= buf
[1] & 0xf;
142 trace_adb_mouse_request_change_addr(d
->devaddr
);
145 d
->devaddr
= buf
[1] & 0xf;
146 /* we support handlers:
147 * 0x01: Classic Apple Mouse Protocol / 100 cpi operations
148 * 0x02: Classic Apple Mouse Protocol / 200 cpi operations
149 * we don't support handlers (at least):
150 * 0x03: Mouse systems A3 trackball
151 * 0x04: Extended Apple Mouse Protocol
152 * 0x2f: Microspeed mouse
154 * 0x5f: Microspeed mouse
155 * 0x66: Microspeed mouse
157 if (buf
[2] == 1 || buf
[2] == 2) {
161 trace_adb_mouse_request_change_addr_and_handler(d
->devaddr
,
170 olen
= adb_mouse_poll(d
, obuf
);
175 obuf
[0] = d
->handler
;
176 obuf
[1] = d
->devaddr
;
180 trace_adb_mouse_readreg(reg
, obuf
[0], obuf
[1]);
186 static void adb_mouse_reset(DeviceState
*dev
)
188 ADBDevice
*d
= ADB_DEVICE(dev
);
189 MouseState
*s
= ADB_MOUSE(dev
);
192 d
->devaddr
= ADB_DEVID_MOUSE
;
193 s
->last_buttons_state
= s
->buttons_state
= 0;
194 s
->dx
= s
->dy
= s
->dz
= 0;
197 static const VMStateDescription vmstate_adb_mouse
= {
200 .minimum_version_id
= 2,
201 .fields
= (VMStateField
[]) {
202 VMSTATE_STRUCT(parent_obj
, MouseState
, 0, vmstate_adb_device
,
204 VMSTATE_INT32(buttons_state
, MouseState
),
205 VMSTATE_INT32(last_buttons_state
, MouseState
),
206 VMSTATE_INT32(dx
, MouseState
),
207 VMSTATE_INT32(dy
, MouseState
),
208 VMSTATE_INT32(dz
, MouseState
),
209 VMSTATE_END_OF_LIST()
213 static void adb_mouse_realizefn(DeviceState
*dev
, Error
**errp
)
215 MouseState
*s
= ADB_MOUSE(dev
);
216 ADBMouseClass
*amc
= ADB_MOUSE_GET_CLASS(dev
);
218 amc
->parent_realize(dev
, errp
);
220 qemu_add_mouse_event_handler(adb_mouse_event
, s
, 0, "QEMU ADB Mouse");
223 static void adb_mouse_initfn(Object
*obj
)
225 ADBDevice
*d
= ADB_DEVICE(obj
);
227 d
->devaddr
= ADB_DEVID_MOUSE
;
230 static void adb_mouse_class_init(ObjectClass
*oc
, void *data
)
232 DeviceClass
*dc
= DEVICE_CLASS(oc
);
233 ADBDeviceClass
*adc
= ADB_DEVICE_CLASS(oc
);
234 ADBMouseClass
*amc
= ADB_MOUSE_CLASS(oc
);
236 device_class_set_parent_realize(dc
, adb_mouse_realizefn
,
237 &amc
->parent_realize
);
238 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
240 adc
->devreq
= adb_mouse_request
;
241 dc
->reset
= adb_mouse_reset
;
242 dc
->vmsd
= &vmstate_adb_mouse
;
245 static const TypeInfo adb_mouse_type_info
= {
246 .name
= TYPE_ADB_MOUSE
,
247 .parent
= TYPE_ADB_DEVICE
,
248 .instance_size
= sizeof(MouseState
),
249 .instance_init
= adb_mouse_initfn
,
250 .class_init
= adb_mouse_class_init
,
251 .class_size
= sizeof(ADBMouseClass
),
254 static void adb_mouse_register_types(void)
256 type_register_static(&adb_mouse_type_info
);
259 type_init(adb_mouse_register_types
)