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input: bind devices and input routing 

Add function to bind input devices to display devices.  Implementing
input routing on top of this:  Events coming from the display device in
question are routed to the input device bound to it (if there is one).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2014-05-19 15:18:37 +02:00
parent 8b84286f4c
commit 6f5943cf45
2 changed files with 43 additions and 3 deletions
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3
include/ui/input.h
View File

@ -29,6 +29,9 @@ QemuInputHandlerState *qemu_input_handler_register(DeviceState *dev,
void qemu_input_handler_activate(QemuInputHandlerState *s);
void qemu_input_handler_deactivate(QemuInputHandlerState *s);
void qemu_input_handler_unregister(QemuInputHandlerState *s);
void qemu_input_handler_bind(QemuInputHandlerState *s,
const char *device_id, int head,
Error **errp);
void qemu_input_event_send(QemuConsole *src, InputEvent *evt);
void qemu_input_event_sync(void);

43
ui/input.c
View File

@ -1,3 +1,4 @@
#include "hw/qdev.h"
#include "sysemu/sysemu.h"
#include "qapi-types.h"
#include "qmp-commands.h"
@ -10,6 +11,7 @@ struct QemuInputHandlerState {
QemuInputHandler *handler;
int id;
int events;
QemuConsole *con;
QTAILQ_ENTRY(QemuInputHandlerState) node;
};
static QTAILQ_HEAD(, QemuInputHandlerState) handlers =
@ -53,12 +55,46 @@ void qemu_input_handler_unregister(QemuInputHandlerState *s)
qemu_input_check_mode_change();
}
void qemu_input_handler_bind(QemuInputHandlerState *s,
const char *device_id, int head,
Error **errp)
{
DeviceState *dev;
QemuConsole *con;
dev = qdev_find_recursive(sysbus_get_default(), device_id);
if (dev == NULL) {
error_set(errp, QERR_DEVICE_NOT_FOUND, device_id);
return;
}
con = qemu_console_lookup_by_device(dev, head);
if (con == NULL) {
error_setg(errp, "Device %s is not bound to a QemuConsole", device_id);
return;
}
s->con = con;
}
static QemuInputHandlerState*
qemu_input_find_handler(uint32_t mask)
qemu_input_find_handler(uint32_t mask, QemuConsole *con)
{
QemuInputHandlerState *s;
QTAILQ_FOREACH(s, &handlers, node) {
if (s->con == NULL || s->con != con) {
continue;
}
if (mask & s->handler->mask) {
return s;
}
}
QTAILQ_FOREACH(s, &handlers, node) {
if (s->con != NULL) {
continue;
}
if (mask & s->handler->mask) {
return s;
}
@ -151,7 +187,7 @@ void qemu_input_event_send(QemuConsole *src, InputEvent *evt)
}
/* send event */
s = qemu_input_find_handler(1 << evt->kind);
s = qemu_input_find_handler(1 << evt->kind, src);
if (!s) {
return;
}
@ -252,7 +288,8 @@ bool qemu_input_is_absolute(void)
{
QemuInputHandlerState *s;
s = qemu_input_find_handler(INPUT_EVENT_MASK_REL | INPUT_EVENT_MASK_ABS);
s = qemu_input_find_handler(INPUT_EVENT_MASK_REL | INPUT_EVENT_MASK_ABS,
NULL);
return (s != NULL) && (s->handler->mask & INPUT_EVENT_MASK_ABS);
}