input.c

   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 "sysemu.h"
  26 #include "net.h"
  27 #include "monitor.h"
  28 #include "console.h"
  29 #include "qjson.h"
  30
  31 static QEMUPutKBDEvent *qemu_put_kbd_event;
  32 static void *qemu_put_kbd_event_opaque;
  33 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers = QTAILQ_HEAD_INITIALIZER(led_handlers);
  34 static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
  35     QTAILQ_HEAD_INITIALIZER(mouse_handlers);
  36 static NotifierList mouse_mode_notifiers =
  37     NOTIFIER_LIST_INITIALIZER(mouse_mode_notifiers);
  38
  39 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
  40 {
  41     qemu_put_kbd_event_opaque = opaque;
  42     qemu_put_kbd_event = func;
  43 }
  44
  45 void qemu_remove_kbd_event_handler(void)
  46 {
  47     qemu_put_kbd_event_opaque = NULL;
  48     qemu_put_kbd_event = NULL;
  49 }
  50
  51 static void check_mode_change(void)
  52 {
  53     static int current_is_absolute, current_has_absolute;
  54     int is_absolute;
  55     int has_absolute;
  56
  57     is_absolute = kbd_mouse_is_absolute();
  58     has_absolute = kbd_mouse_has_absolute();
  59
  60     if (is_absolute != current_is_absolute ||
  61         has_absolute != current_has_absolute) {
  62         notifier_list_notify(&mouse_mode_notifiers, NULL);
  63     }
  64
  65     current_is_absolute = is_absolute;
  66     current_has_absolute = has_absolute;
  67 }
  68
  69 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
  70                                                 void *opaque, int absolute,
  71                                                 const char *name)
  72 {
  73     QEMUPutMouseEntry *s;
  74     static int mouse_index = 0;
  75
  76     s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
  77
  78     s->qemu_put_mouse_event = func;
  79     s->qemu_put_mouse_event_opaque = opaque;
  80     s->qemu_put_mouse_event_absolute = absolute;
  81     s->qemu_put_mouse_event_name = qemu_strdup(name);
  82     s->index = mouse_index++;
  83
  84     QTAILQ_INSERT_TAIL(&mouse_handlers, s, node);
  85
  86     check_mode_change();
  87
  88     return s;
  89 }
  90
  91 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
  92 {
  93     QTAILQ_REMOVE(&mouse_handlers, entry, node);
  94     QTAILQ_INSERT_HEAD(&mouse_handlers, entry, node);
  95
  96     check_mode_change();
  97 }
  98
  99 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 100 {
 101     QTAILQ_REMOVE(&mouse_handlers, entry, node);
 102
 103     qemu_free(entry->qemu_put_mouse_event_name);
 104     qemu_free(entry);
 105
 106     check_mode_change();
 107 }
 108
 109 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 110                                             void *opaque)
 111 {
 112     QEMUPutLEDEntry *s;
 113
 114     s = qemu_mallocz(sizeof(QEMUPutLEDEntry));
 115
 116     s->put_led = func;
 117     s->opaque = opaque;
 118     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 119     return s;
 120 }
 121
 122 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 123 {
 124     if (entry == NULL)
 125         return;
 126     QTAILQ_REMOVE(&led_handlers, entry, next);
 127     qemu_free(entry);
 128 }
 129
 130 void kbd_put_keycode(int keycode)
 131 {
 132     if (qemu_put_kbd_event) {
 133         qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
 134     }
 135 }
 136
 137 void kbd_put_ledstate(int ledstate)
 138 {
 139     QEMUPutLEDEntry *cursor;
 140
 141     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 142         cursor->put_led(cursor->opaque, ledstate);
 143     }
 144 }
 145
 146 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
 147 {
 148     QEMUPutMouseEntry *entry;
 149     QEMUPutMouseEvent *mouse_event;
 150     void *mouse_event_opaque;
 151     int width, height;
 152
 153     if (QTAILQ_EMPTY(&mouse_handlers)) {
 154         return;
 155     }
 156
 157     entry = QTAILQ_FIRST(&mouse_handlers);
 158
 159     mouse_event = entry->qemu_put_mouse_event;
 160     mouse_event_opaque = entry->qemu_put_mouse_event_opaque;
 161
 162     if (mouse_event) {
 163         if (entry->qemu_put_mouse_event_absolute) {
 164             width = 0x7fff;
 165             height = 0x7fff;
 166         } else {
 167             width = graphic_width - 1;
 168             height = graphic_height - 1;
 169         }
 170
 171         switch (graphic_rotate) {
 172         case 0:
 173             mouse_event(mouse_event_opaque,
 174                         dx, dy, dz, buttons_state);
 175             break;
 176         case 90:
 177             mouse_event(mouse_event_opaque,
 178                         width - dy, dx, dz, buttons_state);
 179             break;
 180         case 180:
 181             mouse_event(mouse_event_opaque,
 182                         width - dx, height - dy, dz, buttons_state);
 183             break;
 184         case 270:
 185             mouse_event(mouse_event_opaque,
 186                         dy, height - dx, dz, buttons_state);
 187             break;
 188         }
 189     }
 190 }
 191
 192 int kbd_mouse_is_absolute(void)
 193 {
 194     if (QTAILQ_EMPTY(&mouse_handlers)) {
 195         return 0;
 196     }
 197
 198     return QTAILQ_FIRST(&mouse_handlers)->qemu_put_mouse_event_absolute;
 199 }
 200
 201 int kbd_mouse_has_absolute(void)
 202 {
 203     QEMUPutMouseEntry *entry;
 204
 205     QTAILQ_FOREACH(entry, &mouse_handlers, node) {
 206         if (entry->qemu_put_mouse_event_absolute) {
 207             return 1;
 208         }
 209     }
 210
 211     return 0;
 212 }
 213
 214 static void info_mice_iter(QObject *data, void *opaque)
 215 {
 216     QDict *mouse;
 217     Monitor *mon = opaque;
 218
 219     mouse = qobject_to_qdict(data);
 220     monitor_printf(mon, "%c Mouse #%" PRId64 ": %s%s\n",
 221                   (qdict_get_bool(mouse, "current") ? '*' : ' '),
 222                    qdict_get_int(mouse, "index"), qdict_get_str(mouse, "name"),
 223                    qdict_get_bool(mouse, "absolute") ? " (absolute)" : "");
 224 }
 225
 226 void do_info_mice_print(Monitor *mon, const QObject *data)
 227 {
 228     QList *mice_list;
 229
 230     mice_list = qobject_to_qlist(data);
 231     if (qlist_empty(mice_list)) {
 232         monitor_printf(mon, "No mouse devices connected\n");
 233         return;
 234     }
 235
 236     qlist_iter(mice_list, info_mice_iter, mon);
 237 }
 238
 239 void do_info_mice(Monitor *mon, QObject **ret_data)
 240 {
 241     QEMUPutMouseEntry *cursor;
 242     QList *mice_list;
 243     int current;
 244
 245     mice_list = qlist_new();
 246
 247     if (QTAILQ_EMPTY(&mouse_handlers)) {
 248         goto out;
 249     }
 250
 251     current = QTAILQ_FIRST(&mouse_handlers)->index;
 252
 253     QTAILQ_FOREACH(cursor, &mouse_handlers, node) {
 254         QObject *obj;
 255         obj = qobject_from_jsonf("{ 'name': %s,"
 256                                  "  'index': %d,"
 257                                  "  'current': %i,"
 258                                  "  'absolute': %i }",
 259                                  cursor->qemu_put_mouse_event_name,
 260                                  cursor->index,
 261                                  cursor->index == current,
 262                                  !!cursor->qemu_put_mouse_event_absolute);
 263         qlist_append_obj(mice_list, obj);
 264     }
 265
 266 out:
 267     *ret_data = QOBJECT(mice_list);
 268 }
 269
 270 void do_mouse_set(Monitor *mon, const QDict *qdict)
 271 {
 272     QEMUPutMouseEntry *cursor;
 273     int index = qdict_get_int(qdict, "index");
 274     int found = 0;
 275
 276     if (QTAILQ_EMPTY(&mouse_handlers)) {
 277         monitor_printf(mon, "No mouse devices connected\n");
 278         return;
 279     }
 280
 281     QTAILQ_FOREACH(cursor, &mouse_handlers, node) {
 282         if (cursor->index == index) {
 283             found = 1;
 284             qemu_activate_mouse_event_handler(cursor);
 285             break;
 286         }
 287     }
 288
 289     if (!found) {
 290         monitor_printf(mon, "Mouse at given index not found\n");
 291     }
 292
 293     check_mode_change();
 294 }
 295
 296 void qemu_add_mouse_mode_change_notifier(Notifier *notify)
 297 {
 298     notifier_list_add(&mouse_mode_notifiers, notify);
 299 }
 300
 301 void qemu_remove_mouse_mode_change_notifier(Notifier *notify)
 302 {
 303     notifier_list_remove(&mouse_mode_notifiers, notify);
 304 }