xref: /openbmc/qemu/ui/input-legacy.c (revision 118a2991)
1 /*
2  * QEMU System Emulator
3  *
4  * Copyright (c) 2003-2008 Fabrice Bellard
5  *
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  */
24 
25 #include "qemu/osdep.h"
26 #include "qemu/log.h"
27 #include "qapi/qapi-commands-ui.h"
28 #include "ui/console.h"
29 #include "keymaps.h"
30 #include "ui/input.h"
31 
32 struct QEMUPutMouseEntry {
33     QEMUPutMouseEvent *qemu_put_mouse_event;
34     void *qemu_put_mouse_event_opaque;
35     int qemu_put_mouse_event_absolute;
36 
37     /* new input core */
38     QemuInputHandler h;
39     QemuInputHandlerState *s;
40     int axis[INPUT_AXIS__MAX];
41     int buttons;
42 };
43 
44 struct QEMUPutKbdEntry {
45     QEMUPutKBDEvent *put_kbd;
46     void *opaque;
47     QemuInputHandlerState *s;
48 };
49 
50 struct QEMUPutLEDEntry {
51     QEMUPutLEDEvent *put_led;
52     void *opaque;
53     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
54 };
55 
56 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
57     QTAILQ_HEAD_INITIALIZER(led_handlers);
58 
59 int index_from_key(const char *key, size_t key_length)
60 {
61     int i;
62 
63     for (i = 0; i < Q_KEY_CODE__MAX; i++) {
64         if (!strncmp(key, QKeyCode_str(i), key_length) &&
65             !QKeyCode_str(i)[key_length]) {
66             break;
67         }
68     }
69 
70     /* Return Q_KEY_CODE__MAX if the key is invalid */
71     return i;
72 }
73 
74 static KeyValue *copy_key_value(KeyValue *src)
75 {
76     KeyValue *dst = g_new(KeyValue, 1);
77     memcpy(dst, src, sizeof(*src));
78     if (dst->type == KEY_VALUE_KIND_NUMBER) {
79         QKeyCode code = qemu_input_key_number_to_qcode(dst->u.number.data);
80         dst->type = KEY_VALUE_KIND_QCODE;
81         dst->u.qcode.data = code;
82     }
83     return dst;
84 }
85 
86 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
87                   Error **errp)
88 {
89     KeyValueList *p;
90     KeyValue **up = NULL;
91     int count = 0;
92 
93     if (!has_hold_time) {
94         hold_time = 0; /* use default */
95     }
96 
97     for (p = keys; p != NULL; p = p->next) {
98         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
99         qemu_input_event_send_key_delay(hold_time);
100         up = g_realloc(up, sizeof(*up) * (count+1));
101         up[count] = copy_key_value(p->value);
102         count++;
103     }
104     while (count) {
105         count--;
106         qemu_input_event_send_key(NULL, up[count], false);
107         qemu_input_event_send_key_delay(hold_time);
108     }
109     g_free(up);
110 }
111 
112 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
113                                InputEvent *evt)
114 {
115     static const int bmap[INPUT_BUTTON__MAX] = {
116         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
117         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
118         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
119     };
120     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
121     InputBtnEvent *btn;
122     InputMoveEvent *move;
123 
124     switch (evt->type) {
125     case INPUT_EVENT_KIND_BTN:
126         btn = evt->u.btn.data;
127         if (btn->down) {
128             s->buttons |= bmap[btn->button];
129         } else {
130             s->buttons &= ~bmap[btn->button];
131         }
132         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_UP) {
133             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
134                                     s->axis[INPUT_AXIS_X],
135                                     s->axis[INPUT_AXIS_Y],
136                                     -1,
137                                     s->buttons);
138         }
139         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_DOWN) {
140             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
141                                     s->axis[INPUT_AXIS_X],
142                                     s->axis[INPUT_AXIS_Y],
143                                     1,
144                                     s->buttons);
145         }
146         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_RIGHT) {
147             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
148                                     s->axis[INPUT_AXIS_X],
149                                     s->axis[INPUT_AXIS_Y],
150                                     -2,
151                                     s->buttons);
152         }
153         if (btn->down && btn->button == INPUT_BUTTON_WHEEL_LEFT) {
154             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
155                                     s->axis[INPUT_AXIS_X],
156                                     s->axis[INPUT_AXIS_Y],
157                                     2,
158                                     s->buttons);
159         }
160         break;
161     case INPUT_EVENT_KIND_ABS:
162         move = evt->u.abs.data;
163         s->axis[move->axis] = move->value;
164         break;
165     case INPUT_EVENT_KIND_REL:
166         move = evt->u.rel.data;
167         s->axis[move->axis] += move->value;
168         break;
169     default:
170         break;
171     }
172 }
173 
174 static void legacy_mouse_sync(DeviceState *dev)
175 {
176     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
177 
178     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
179                             s->axis[INPUT_AXIS_X],
180                             s->axis[INPUT_AXIS_Y],
181                             0,
182                             s->buttons);
183 
184     if (!s->qemu_put_mouse_event_absolute) {
185         s->axis[INPUT_AXIS_X] = 0;
186         s->axis[INPUT_AXIS_Y] = 0;
187     }
188 }
189 
190 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
191                                                 void *opaque, int absolute,
192                                                 const char *name)
193 {
194     QEMUPutMouseEntry *s;
195 
196     s = g_new0(QEMUPutMouseEntry, 1);
197 
198     s->qemu_put_mouse_event = func;
199     s->qemu_put_mouse_event_opaque = opaque;
200     s->qemu_put_mouse_event_absolute = absolute;
201 
202     s->h.name = name;
203     s->h.mask = INPUT_EVENT_MASK_BTN |
204         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
205     s->h.event = legacy_mouse_event;
206     s->h.sync = legacy_mouse_sync;
207     s->s = qemu_input_handler_register((DeviceState *)s,
208                                        &s->h);
209 
210     return s;
211 }
212 
213 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
214 {
215     qemu_input_handler_activate(entry->s);
216 }
217 
218 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
219 {
220     qemu_input_handler_unregister(entry->s);
221 
222     g_free(entry);
223 }
224 
225 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
226                                             void *opaque)
227 {
228     QEMUPutLEDEntry *s;
229 
230     s = g_new0(QEMUPutLEDEntry, 1);
231 
232     s->put_led = func;
233     s->opaque = opaque;
234     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
235     return s;
236 }
237 
238 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
239 {
240     if (entry == NULL)
241         return;
242     QTAILQ_REMOVE(&led_handlers, entry, next);
243     g_free(entry);
244 }
245 
246 void kbd_put_ledstate(int ledstate)
247 {
248     QEMUPutLEDEntry *cursor;
249 
250     QTAILQ_FOREACH(cursor, &led_handlers, next) {
251         cursor->put_led(cursor->opaque, ledstate);
252     }
253 }
254