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 QEMUPutMouseEntry *qemu_put_mouse_event_head;
  35 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
  36 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers = QTAILQ_HEAD_INITIALIZER(led_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, *cursor;
  49
  50     s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
  51
  52     s->qemu_put_mouse_event = func;
  53     s->qemu_put_mouse_event_opaque = opaque;
  54     s->qemu_put_mouse_event_absolute = absolute;
  55     s->qemu_put_mouse_event_name = qemu_strdup(name);
  56     s->next = NULL;
  57
  58     if (!qemu_put_mouse_event_head) {
  59         qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
  60         return s;
  61     }
  62
  63     cursor = qemu_put_mouse_event_head;
  64     while (cursor->next != NULL)
  65         cursor = cursor->next;
  66
  67     cursor->next = s;
  68     qemu_put_mouse_event_current = s;
  69
  70     return s;
  71 }
  72
  73 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
  74 {
  75     QEMUPutMouseEntry *prev = NULL, *cursor;
  76
  77     if (!qemu_put_mouse_event_head || entry == NULL)
  78         return;
  79
  80     cursor = qemu_put_mouse_event_head;
  81     while (cursor != NULL && cursor != entry) {
  82         prev = cursor;
  83         cursor = cursor->next;
  84     }
  85
  86     if (cursor == NULL) // does not exist or list empty
  87         return;
  88     else if (prev == NULL) { // entry is head
  89         qemu_put_mouse_event_head = cursor->next;
  90         if (qemu_put_mouse_event_current == entry)
  91             qemu_put_mouse_event_current = cursor->next;
  92         qemu_free(entry->qemu_put_mouse_event_name);
  93         qemu_free(entry);
  94         return;
  95     }
  96
  97     prev->next = entry->next;
  98
  99     if (qemu_put_mouse_event_current == entry)
 100         qemu_put_mouse_event_current = prev;
 101
 102     qemu_free(entry->qemu_put_mouse_event_name);
 103     qemu_free(entry);
 104 }
 105
 106 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 107                                             void *opaque)
 108 {
 109     QEMUPutLEDEntry *s;
 110
 111     s = qemu_mallocz(sizeof(QEMUPutLEDEntry));
 112
 113     s->put_led = func;
 114     s->opaque = opaque;
 115     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 116     return s;
 117 }
 118
 119 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 120 {
 121     if (entry == NULL)
 122         return;
 123     QTAILQ_REMOVE(&led_handlers, entry, next);
 124     qemu_free(entry);
 125 }
 126
 127 void kbd_put_keycode(int keycode)
 128 {
 129     if (qemu_put_kbd_event) {
 130         qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
 131     }
 132 }
 133
 134 void kbd_put_ledstate(int ledstate)
 135 {
 136     QEMUPutLEDEntry *cursor;
 137
 138     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 139         cursor->put_led(cursor->opaque, ledstate);
 140     }
 141 }
 142
 143 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
 144 {
 145     QEMUPutMouseEvent *mouse_event;
 146     void *mouse_event_opaque;
 147     int width;
 148
 149     if (!qemu_put_mouse_event_current) {
 150         return;
 151     }
 152
 153     mouse_event =
 154         qemu_put_mouse_event_current->qemu_put_mouse_event;
 155     mouse_event_opaque =
 156         qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
 157
 158     if (mouse_event) {
 159         if (graphic_rotate) {
 160             if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
 161                 width = 0x7fff;
 162             else
 163                 width = graphic_width - 1;
 164             mouse_event(mouse_event_opaque,
 165                                  width - dy, dx, dz, buttons_state);
 166         } else
 167             mouse_event(mouse_event_opaque,
 168                                  dx, dy, dz, buttons_state);
 169     }
 170 }
 171
 172 int kbd_mouse_is_absolute(void)
 173 {
 174     if (!qemu_put_mouse_event_current)
 175         return 0;
 176
 177     return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
 178 }
 179
 180 static void info_mice_iter(QObject *data, void *opaque)
 181 {
 182     QDict *mouse;
 183     Monitor *mon = opaque;
 184
 185     mouse = qobject_to_qdict(data);
 186     monitor_printf(mon, "%c Mouse #%" PRId64 ": %s\n",
 187                   (qdict_get_bool(mouse, "current") ? '*' : ' '),
 188                   qdict_get_int(mouse, "index"), qdict_get_str(mouse, "name"));
 189 }
 190
 191 void do_info_mice_print(Monitor *mon, const QObject *data)
 192 {
 193     QList *mice_list;
 194
 195     mice_list = qobject_to_qlist(data);
 196     if (qlist_empty(mice_list)) {
 197         monitor_printf(mon, "No mouse devices connected\n");
 198         return;
 199     }
 200
 201     qlist_iter(mice_list, info_mice_iter, mon);
 202 }
 203
 204 /**
 205  * do_info_mice(): Show VM mice information
 206  *
 207  * Each mouse is represented by a QDict, the returned QObject is a QList of
 208  * all mice.
 209  *
 210  * The mouse QDict contains the following:
 211  *
 212  * - "name": mouse's name
 213  * - "index": mouse's index
 214  * - "current": true if this mouse is receiving events, false otherwise
 215  *
 216  * Example:
 217  *
 218  * [ { "name": "QEMU Microsoft Mouse", "index": 0, "current": false },
 219  *   { "name": "QEMU PS/2 Mouse", "index": 1, "current": true } ]
 220  */
 221 void do_info_mice(Monitor *mon, QObject **ret_data)
 222 {
 223     QEMUPutMouseEntry *cursor;
 224     QList *mice_list;
 225     int index = 0;
 226
 227     mice_list = qlist_new();
 228
 229     if (!qemu_put_mouse_event_head) {
 230         goto out;
 231     }
 232
 233     cursor = qemu_put_mouse_event_head;
 234     while (cursor != NULL) {
 235         QObject *obj;
 236         obj = qobject_from_jsonf("{ 'name': %s, 'index': %d, 'current': %i }",
 237                                  cursor->qemu_put_mouse_event_name,
 238                                  index, cursor == qemu_put_mouse_event_current);
 239         qlist_append_obj(mice_list, obj);
 240         index++;
 241         cursor = cursor->next;
 242     }
 243
 244 out:
 245     *ret_data = QOBJECT(mice_list);
 246 }
 247
 248 void do_mouse_set(Monitor *mon, const QDict *qdict)
 249 {
 250     QEMUPutMouseEntry *cursor;
 251     int i = 0;
 252     int index = qdict_get_int(qdict, "index");
 253
 254     if (!qemu_put_mouse_event_head) {
 255         monitor_printf(mon, "No mouse devices connected\n");
 256         return;
 257     }
 258
 259     cursor = qemu_put_mouse_event_head;
 260     while (cursor != NULL && index != i) {
 261         i++;
 262         cursor = cursor->next;
 263     }
 264
 265     if (cursor != NULL)
 266         qemu_put_mouse_event_current = cursor;
 267     else
 268         monitor_printf(mon, "Mouse at given index not found\n");
 269 }