Archipelago » qemu

/*

 * QEMU System Emulator

 *

 * Copyright (c) 2003-2008 Fabrice Bellard

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#include "sysemu.h"

#include "net.h"

#include "monitor.h"

#include "console.h"

#include "qjson.h"

static QEMUPutKBDEvent *qemu_put_kbd_event;

static void *qemu_put_kbd_event_opaque;

static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers = QTAILQ_HEAD_INITIALIZER(led_handlers);

static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =

    QTAILQ_HEAD_INITIALIZER(mouse_handlers);

static NotifierList mouse_mode_notifiers = 

    NOTIFIER_LIST_INITIALIZER(mouse_mode_notifiers);

void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)

{

    qemu_put_kbd_event_opaque = opaque;

    qemu_put_kbd_event = func;

}

static void check_mode_change(void)

{

    static int current_is_absolute, current_has_absolute;

    int is_absolute;

    int has_absolute;

    is_absolute = kbd_mouse_is_absolute();

    has_absolute = kbd_mouse_has_absolute();

    if (is_absolute != current_is_absolute ||

        has_absolute != current_has_absolute) {

        notifier_list_notify(&mouse_mode_notifiers);

    }

    current_is_absolute = is_absolute;

    current_has_absolute = has_absolute;

}

QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,

                                                void *opaque, int absolute,

                                                const char *name)

{

    QEMUPutMouseEntry *s;

    static int mouse_index = 0;

    s = qemu_mallocz(sizeof(QEMUPutMouseEntry));

    s->qemu_put_mouse_event = func;

    s->qemu_put_mouse_event_opaque = opaque;

    s->qemu_put_mouse_event_absolute = absolute;

    s->qemu_put_mouse_event_name = qemu_strdup(name);

    s->index = mouse_index++;

    QTAILQ_INSERT_TAIL(&mouse_handlers, s, node);

    check_mode_change();

    return s;

}

void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)

{

    QTAILQ_REMOVE(&mouse_handlers, entry, node);

    QTAILQ_INSERT_HEAD(&mouse_handlers, entry, node);

    check_mode_change();

}

void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)

{

    QTAILQ_REMOVE(&mouse_handlers, entry, node);

    qemu_free(entry->qemu_put_mouse_event_name);

    qemu_free(entry);

    check_mode_change();

}

QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,

                                            void *opaque)

{

    QEMUPutLEDEntry *s;

    s = qemu_mallocz(sizeof(QEMUPutLEDEntry));

    s->put_led = func;

    s->opaque = opaque;

    QTAILQ_INSERT_TAIL(&led_handlers, s, next);

    return s;

}

void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)

{

    if (entry == NULL)

        return;

    QTAILQ_REMOVE(&led_handlers, entry, next);

    qemu_free(entry);

}

void kbd_put_keycode(int keycode)

{

    if (qemu_put_kbd_event) {

        qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);

    }

}

void kbd_put_ledstate(int ledstate)

{

    QEMUPutLEDEntry *cursor;

    QTAILQ_FOREACH(cursor, &led_handlers, next) {

        cursor->put_led(cursor->opaque, ledstate);

    }

}

void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)

{

    QEMUPutMouseEntry *entry;

    QEMUPutMouseEvent *mouse_event;

    void *mouse_event_opaque;

    int width;

    if (QTAILQ_EMPTY(&mouse_handlers)) {

        return;

    }

    entry = QTAILQ_FIRST(&mouse_handlers);

    mouse_event = entry->qemu_put_mouse_event;

    mouse_event_opaque = entry->qemu_put_mouse_event_opaque;

    if (mouse_event) {

        if (graphic_rotate) {

            if (entry->qemu_put_mouse_event_absolute)

                width = 0x7fff;

            else

                width = graphic_width - 1;

            mouse_event(mouse_event_opaque,

                        width - dy, dx, dz, buttons_state);

        } else

            mouse_event(mouse_event_opaque,

                        dx, dy, dz, buttons_state);

    }

}

int kbd_mouse_is_absolute(void)

{

    if (QTAILQ_EMPTY(&mouse_handlers)) {

        return 0;

    }

    return QTAILQ_FIRST(&mouse_handlers)->qemu_put_mouse_event_absolute;

}

int kbd_mouse_has_absolute(void)

{

    QEMUPutMouseEntry *entry;

    QTAILQ_FOREACH(entry, &mouse_handlers, node) {

        if (entry->qemu_put_mouse_event_absolute) {

            return 1;

        }

    }

    return 0;

}

static void info_mice_iter(QObject *data, void *opaque)

{

    QDict *mouse;

    Monitor *mon = opaque;

    mouse = qobject_to_qdict(data);

    monitor_printf(mon, "%c Mouse #%" PRId64 ": %s%s\n",

                  (qdict_get_bool(mouse, "current") ? '*' : ' '),

                   qdict_get_int(mouse, "index"), qdict_get_str(mouse, "name"),

                   qdict_get_bool(mouse, "absolute") ? " (absolute)" : "");

}

void do_info_mice_print(Monitor *mon, const QObject *data)

{

    QList *mice_list;

    mice_list = qobject_to_qlist(data);

    if (qlist_empty(mice_list)) {

        monitor_printf(mon, "No mouse devices connected\n");

        return;

    }

    qlist_iter(mice_list, info_mice_iter, mon);

}

/**

 * do_info_mice(): Show VM mice information

 *

 * Each mouse is represented by a QDict, the returned QObject is a QList of

 * all mice.

 *

 * The mouse QDict contains the following:

 *

 * - "name": mouse's name

 * - "index": mouse's index

 * - "current": true if this mouse is receiving events, false otherwise

 * - "absolute": true if the mouse generates absolute input events

 *

 * Example:

 *

 * [ { "name": "QEMU Microsoft Mouse", "index": 0, "current": false, "absolute": false },

 *   { "name": "QEMU PS/2 Mouse", "index": 1, "current": true, "absolute": true } ]

 */

void do_info_mice(Monitor *mon, QObject **ret_data)

{

    QEMUPutMouseEntry *cursor;

    QList *mice_list;

    int current;

    mice_list = qlist_new();

    if (QTAILQ_EMPTY(&mouse_handlers)) {

        goto out;

    }

    current = QTAILQ_FIRST(&mouse_handlers)->index;

    QTAILQ_FOREACH(cursor, &mouse_handlers, node) {

        QObject *obj;

        obj = qobject_from_jsonf("{ 'name': %s,"

                                 "  'index': %d,"

                                 "  'current': %i,"

                                 "  'absolute': %i }",

                                 cursor->qemu_put_mouse_event_name,

                                 cursor->index,

                                 cursor->index == current,

                                 !!cursor->qemu_put_mouse_event_absolute);

        qlist_append_obj(mice_list, obj);

    }

out:

    *ret_data = QOBJECT(mice_list);

}

void do_mouse_set(Monitor *mon, const QDict *qdict)

{

    QEMUPutMouseEntry *cursor;

    int index = qdict_get_int(qdict, "index");

    int found = 0;

    if (QTAILQ_EMPTY(&mouse_handlers)) {

        monitor_printf(mon, "No mouse devices connected\n");

        return;

    }

    QTAILQ_FOREACH(cursor, &mouse_handlers, node) {

        if (cursor->index == index) {

            found = 1;

            qemu_activate_mouse_event_handler(cursor);

            break;

        }

    }

    if (!found) {

        monitor_printf(mon, "Mouse at given index not found\n");

    }

    check_mode_change();

}

void qemu_add_mouse_mode_change_notifier(Notifier *notify)

{

    notifier_list_add(&mouse_mode_notifiers, notify);

}

void qemu_remove_mouse_mode_change_notifier(Notifier *notify)

{

    notifier_list_remove(&mouse_mode_notifiers, notify);

}