File:  [Qemu by Fabrice Bellard] / qemu / input.c
Revision 1.1.1.2 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:55:39 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1000, qemu0151, HEAD
qemu 0.15.1

    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 "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: }

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