File:  [Qemu by Fabrice Bellard] / qemu / input.c
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 19:16:41 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1001, HEAD
qemu 1.0.1

    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 "error.h"
   30: #include "qmp-commands.h"
   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: static NotifierList mouse_mode_notifiers = 
   38:     NOTIFIER_LIST_INITIALIZER(mouse_mode_notifiers);
   39: 
   40: void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
   41: {
   42:     qemu_put_kbd_event_opaque = opaque;
   43:     qemu_put_kbd_event = func;
   44: }
   45: 
   46: void qemu_remove_kbd_event_handler(void)
   47: {
   48:     qemu_put_kbd_event_opaque = NULL;
   49:     qemu_put_kbd_event = NULL;
   50: }
   51: 
   52: static void check_mode_change(void)
   53: {
   54:     static int current_is_absolute, current_has_absolute;
   55:     int is_absolute;
   56:     int has_absolute;
   57: 
   58:     is_absolute = kbd_mouse_is_absolute();
   59:     has_absolute = kbd_mouse_has_absolute();
   60: 
   61:     if (is_absolute != current_is_absolute ||
   62:         has_absolute != current_has_absolute) {
   63:         notifier_list_notify(&mouse_mode_notifiers, NULL);
   64:     }
   65: 
   66:     current_is_absolute = is_absolute;
   67:     current_has_absolute = has_absolute;
   68: }
   69: 
   70: QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
   71:                                                 void *opaque, int absolute,
   72:                                                 const char *name)
   73: {
   74:     QEMUPutMouseEntry *s;
   75:     static int mouse_index = 0;
   76: 
   77:     s = g_malloc0(sizeof(QEMUPutMouseEntry));
   78: 
   79:     s->qemu_put_mouse_event = func;
   80:     s->qemu_put_mouse_event_opaque = opaque;
   81:     s->qemu_put_mouse_event_absolute = absolute;
   82:     s->qemu_put_mouse_event_name = g_strdup(name);
   83:     s->index = mouse_index++;
   84: 
   85:     QTAILQ_INSERT_TAIL(&mouse_handlers, s, node);
   86: 
   87:     check_mode_change();
   88: 
   89:     return s;
   90: }
   91: 
   92: void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
   93: {
   94:     QTAILQ_REMOVE(&mouse_handlers, entry, node);
   95:     QTAILQ_INSERT_HEAD(&mouse_handlers, entry, node);
   96: 
   97:     check_mode_change();
   98: }
   99: 
  100: void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
  101: {
  102:     QTAILQ_REMOVE(&mouse_handlers, entry, node);
  103: 
  104:     g_free(entry->qemu_put_mouse_event_name);
  105:     g_free(entry);
  106: 
  107:     check_mode_change();
  108: }
  109: 
  110: QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
  111:                                             void *opaque)
  112: {
  113:     QEMUPutLEDEntry *s;
  114: 
  115:     s = g_malloc0(sizeof(QEMUPutLEDEntry));
  116: 
  117:     s->put_led = func;
  118:     s->opaque = opaque;
  119:     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
  120:     return s;
  121: }
  122: 
  123: void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
  124: {
  125:     if (entry == NULL)
  126:         return;
  127:     QTAILQ_REMOVE(&led_handlers, entry, next);
  128:     g_free(entry);
  129: }
  130: 
  131: void kbd_put_keycode(int keycode)
  132: {
  133:     if (qemu_put_kbd_event) {
  134:         qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
  135:     }
  136: }
  137: 
  138: void kbd_put_ledstate(int ledstate)
  139: {
  140:     QEMUPutLEDEntry *cursor;
  141: 
  142:     QTAILQ_FOREACH(cursor, &led_handlers, next) {
  143:         cursor->put_led(cursor->opaque, ledstate);
  144:     }
  145: }
  146: 
  147: void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
  148: {
  149:     QEMUPutMouseEntry *entry;
  150:     QEMUPutMouseEvent *mouse_event;
  151:     void *mouse_event_opaque;
  152:     int width, height;
  153: 
  154:     if (QTAILQ_EMPTY(&mouse_handlers)) {
  155:         return;
  156:     }
  157: 
  158:     entry = QTAILQ_FIRST(&mouse_handlers);
  159: 
  160:     mouse_event = entry->qemu_put_mouse_event;
  161:     mouse_event_opaque = entry->qemu_put_mouse_event_opaque;
  162: 
  163:     if (mouse_event) {
  164:         if (entry->qemu_put_mouse_event_absolute) {
  165:             width = 0x7fff;
  166:             height = 0x7fff;
  167:         } else {
  168:             width = graphic_width - 1;
  169:             height = graphic_height - 1;
  170:         }
  171: 
  172:         switch (graphic_rotate) {
  173:         case 0:
  174:             mouse_event(mouse_event_opaque,
  175:                         dx, dy, dz, buttons_state);
  176:             break;
  177:         case 90:
  178:             mouse_event(mouse_event_opaque,
  179:                         width - dy, dx, dz, buttons_state);
  180:             break;
  181:         case 180:
  182:             mouse_event(mouse_event_opaque,
  183:                         width - dx, height - dy, dz, buttons_state);
  184:             break;
  185:         case 270:
  186:             mouse_event(mouse_event_opaque,
  187:                         dy, height - dx, dz, buttons_state);
  188:             break;
  189:         }
  190:     }
  191: }
  192: 
  193: int kbd_mouse_is_absolute(void)
  194: {
  195:     if (QTAILQ_EMPTY(&mouse_handlers)) {
  196:         return 0;
  197:     }
  198: 
  199:     return QTAILQ_FIRST(&mouse_handlers)->qemu_put_mouse_event_absolute;
  200: }
  201: 
  202: int kbd_mouse_has_absolute(void)
  203: {
  204:     QEMUPutMouseEntry *entry;
  205: 
  206:     QTAILQ_FOREACH(entry, &mouse_handlers, node) {
  207:         if (entry->qemu_put_mouse_event_absolute) {
  208:             return 1;
  209:         }
  210:     }
  211: 
  212:     return 0;
  213: }
  214: 
  215: MouseInfoList *qmp_query_mice(Error **errp)
  216: {
  217:     MouseInfoList *mice_list = NULL;
  218:     QEMUPutMouseEntry *cursor;
  219:     bool current = true;
  220: 
  221:     QTAILQ_FOREACH(cursor, &mouse_handlers, node) {
  222:         MouseInfoList *info = g_malloc0(sizeof(*info));
  223:         info->value = g_malloc0(sizeof(*info->value));
  224:         info->value->name = g_strdup(cursor->qemu_put_mouse_event_name);
  225:         info->value->index = cursor->index;
  226:         info->value->absolute = !!cursor->qemu_put_mouse_event_absolute;
  227:         info->value->current = current;
  228: 
  229:         current = false;
  230: 
  231:         info->next = mice_list;
  232:         mice_list = info;
  233:     }
  234: 
  235:     return mice_list;
  236: }
  237: 
  238: void do_mouse_set(Monitor *mon, const QDict *qdict)
  239: {
  240:     QEMUPutMouseEntry *cursor;
  241:     int index = qdict_get_int(qdict, "index");
  242:     int found = 0;
  243: 
  244:     if (QTAILQ_EMPTY(&mouse_handlers)) {
  245:         monitor_printf(mon, "No mouse devices connected\n");
  246:         return;
  247:     }
  248: 
  249:     QTAILQ_FOREACH(cursor, &mouse_handlers, node) {
  250:         if (cursor->index == index) {
  251:             found = 1;
  252:             qemu_activate_mouse_event_handler(cursor);
  253:             break;
  254:         }
  255:     }
  256: 
  257:     if (!found) {
  258:         monitor_printf(mon, "Mouse at given index not found\n");
  259:     }
  260: 
  261:     check_mode_change();
  262: }
  263: 
  264: void qemu_add_mouse_mode_change_notifier(Notifier *notify)
  265: {
  266:     notifier_list_add(&mouse_mode_notifiers, notify);
  267: }
  268: 
  269: void qemu_remove_mouse_mode_change_notifier(Notifier *notify)
  270: {
  271:     notifier_list_remove(&mouse_mode_notifiers, notify);
  272: }

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