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
  32 static QEMUPutKBDEvent *qemu_put_kbd_event;
  33 static void *qemu_put_kbd_event_opaque;
  34 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers = QTAILQ_HEAD_INITIALIZER(led_handlers);
  35 static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
  36     QTAILQ_HEAD_INITIALIZER(mouse_handlers);
  37
  38 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
  39 {
  40     qemu_put_kbd_event_opaque = opaque;
  41     qemu_put_kbd_event = func;
  42 }
  43
  44 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
  45                                                 void *opaque, int absolute,
  46                                                 const char *name)
  47 {
  48     QEMUPutMouseEntry *s;
  49     static int mouse_index = 0;
  50
  51     s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
  52
  53     s->qemu_put_mouse_event = func;
  54     s->qemu_put_mouse_event_opaque = opaque;
  55     s->qemu_put_mouse_event_absolute = absolute;
  56     s->qemu_put_mouse_event_name = qemu_strdup(name);
  57     s->index = mouse_index++;
  58
  59     QTAILQ_INSERT_TAIL(&mouse_handlers, s, node);
  60
  61     return s;
  62 }
  63
  64 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
  65 {
  66     QTAILQ_REMOVE(&mouse_handlers, entry, node);
  67     QTAILQ_INSERT_HEAD(&mouse_handlers, entry, node);
  68
  69     check_mode_change();
  70 }
  71
  72 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
  73 {
  74     QTAILQ_REMOVE(&mouse_handlers, entry, node);
  75
  76     qemu_free(entry->qemu_put_mouse_event_name);
  77     qemu_free(entry);
  78 }
  79
  80 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
  81                                             void *opaque)
  82 {
  83     QEMUPutLEDEntry *s;
  84
  85     s = qemu_mallocz(sizeof(QEMUPutLEDEntry));
  86
  87     s->put_led = func;
  88     s->opaque = opaque;
  89     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
  90     return s;
  91 }
  92
  93 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
  94 {
  95     if (entry == NULL)
  96         return;
  97     QTAILQ_REMOVE(&led_handlers, entry, next);
  98     qemu_free(entry);
  99 }
 100
 101 void kbd_put_keycode(int keycode)
 102 {
 103     if (qemu_put_kbd_event) {
 104         qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
 105     }
 106 }
 107
 108 void kbd_put_ledstate(int ledstate)
 109 {
 110     QEMUPutLEDEntry *cursor;
 111
 112     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 113         cursor->put_led(cursor->opaque, ledstate);
 114     }
 115 }
 116
 117 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
 118 {
 119     QEMUPutMouseEntry *entry;
 120     QEMUPutMouseEvent *mouse_event;
 121     void *mouse_event_opaque;
 122     int width;
 123
 124     if (QTAILQ_EMPTY(&mouse_handlers)) {
 125         return;
 126     }
 127
 128     entry = QTAILQ_FIRST(&mouse_handlers);
 129
 130     mouse_event = entry->qemu_put_mouse_event;
 131     mouse_event_opaque = entry->qemu_put_mouse_event_opaque;
 132
 133     if (mouse_event) {
 134         if (graphic_rotate) {
 135             if (entry->qemu_put_mouse_event_absolute)
 136                 width = 0x7fff;
 137             else
 138                 width = graphic_width - 1;
 139             mouse_event(mouse_event_opaque,
 140                         width - dy, dx, dz, buttons_state);
 141         } else
 142             mouse_event(mouse_event_opaque,
 143                         dx, dy, dz, buttons_state);
 144     }
 145 }
 146
 147 int kbd_mouse_is_absolute(void)
 148 {
 149     if (QTAILQ_EMPTY(&mouse_handlers)) {
 150         return 0;
 151     }
 152
 153     return QTAILQ_FIRST(&mouse_handlers)->qemu_put_mouse_event_absolute;
 154 }
 155
 156 static void info_mice_iter(QObject *data, void *opaque)
 157 {
 158     QDict *mouse;
 159     Monitor *mon = opaque;
 160
 161     mouse = qobject_to_qdict(data);
 162     monitor_printf(mon, "%c Mouse #%" PRId64 ": %s\n",
 163                   (qdict_get_bool(mouse, "current") ? '*' : ' '),
 164                   qdict_get_int(mouse, "index"), qdict_get_str(mouse, "name"));
 165 }
 166
 167 void do_info_mice_print(Monitor *mon, const QObject *data)
 168 {
 169     QList *mice_list;
 170
 171     mice_list = qobject_to_qlist(data);
 172     if (qlist_empty(mice_list)) {
 173         monitor_printf(mon, "No mouse devices connected\n");
 174         return;
 175     }
 176
 177     qlist_iter(mice_list, info_mice_iter, mon);
 178 }
 179
 180 /**
 181  * do_info_mice(): Show VM mice information
 182  *
 183  * Each mouse is represented by a QDict, the returned QObject is a QList of
 184  * all mice.
 185  *
 186  * The mouse QDict contains the following:
 187  *
 188  * - "name": mouse's name
 189  * - "index": mouse's index
 190  * - "current": true if this mouse is receiving events, false otherwise
 191  *
 192  * Example:
 193  *
 194  * [ { "name": "QEMU Microsoft Mouse", "index": 0, "current": false },
 195  *   { "name": "QEMU PS/2 Mouse", "index": 1, "current": true } ]
 196  */
 197 void do_info_mice(Monitor *mon, QObject **ret_data)
 198 {
 199     QEMUPutMouseEntry *cursor;
 200     QList *mice_list;
 201     int current;
 202
 203     mice_list = qlist_new();
 204
 205     if (QTAILQ_EMPTY(&mouse_handlers)) {
 206         goto out;
 207     }
 208
 209     current = QTAILQ_FIRST(&mouse_handlers)->index;
 210
 211     QTAILQ_FOREACH(cursor, &mouse_handlers, node) {
 212         QObject *obj;
 213         obj = qobject_from_jsonf("{ 'name': %s, 'index': %d, 'current': %i }",
 214                                  cursor->qemu_put_mouse_event_name,
 215                                  cursor->index,
 216                                  cursor->index == current);
 217         qlist_append_obj(mice_list, obj);
 218     }
 219
 220 out:
 221     *ret_data = QOBJECT(mice_list);
 222 }
 223
 224 void do_mouse_set(Monitor *mon, const QDict *qdict)
 225 {
 226     QEMUPutMouseEntry *cursor;
 227     int index = qdict_get_int(qdict, "index");
 228     int found = 0;
 229
 230     if (QTAILQ_EMPTY(&mouse_handlers)) {
 231         monitor_printf(mon, "No mouse devices connected\n");
 232         return;
 233     }
 234
 235     QTAILQ_FOREACH(cursor, &mouse_handlers, node) {
 236         if (cursor->index == index) {
 237             found = 1;
 238             qemu_activate_mouse_event_handler(cursor);
 239             break;
 240         }
 241     }
 242
 243     if (!found) {
 244         monitor_printf(mon, "Mouse at given index not found\n");
 245     }
 246 }