qemu/input.c
Anthony Liguori 1aaee43cf7 Expose whether a mouse is an absolute device via QMP and the human monitor.
For QMP, we just add an attribute which is backwards compatible.  For the human
monitor, we add (absolute) to the end of the line.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-19 15:27:38 -05:00

301 lines
8.1 KiB
C

/*
* 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);
}