qemu/ui/spice-input.c
Daniel P. Berrange e92316ad30 ui: correctly detect spice PAUSE scancode sequence
The SPICE input code is currently detcting 0xe1 0x1d 0x45 as
the PAUSE key make sequence and 0xe1 0x9d 0xc5 as the break
sequence. This is incorrect, because all 6 scancodes together
are the make sequence, and there is no break sequence.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170727174640.30359-1-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-07-28 12:35:40 +02:00

261 lines
7.6 KiB
C

/*
* Copyright (C) 2010 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include <spice.h>
#include <spice/enums.h>
#include "qemu-common.h"
#include "ui/qemu-spice.h"
#include "ui/console.h"
#include "ui/keymaps.h"
#include "ui/input.h"
/* keyboard bits */
typedef struct QemuSpiceKbd {
SpiceKbdInstance sin;
int ledstate;
bool emul0;
size_t pauseseq;
} QemuSpiceKbd;
static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag);
static uint8_t kbd_get_leds(SpiceKbdInstance *sin);
static void kbd_leds(void *opaque, int l);
static const SpiceKbdInterface kbd_interface = {
.base.type = SPICE_INTERFACE_KEYBOARD,
.base.description = "qemu keyboard",
.base.major_version = SPICE_INTERFACE_KEYBOARD_MAJOR,
.base.minor_version = SPICE_INTERFACE_KEYBOARD_MINOR,
.push_scan_freg = kbd_push_key,
.get_leds = kbd_get_leds,
};
static void kbd_push_key(SpiceKbdInstance *sin, uint8_t scancode)
{
static const uint8_t pauseseq[] = { 0xe1, 0x1d, 0x45, 0xe1, 0x9d, 0xc5 };
QemuSpiceKbd *kbd = container_of(sin, QemuSpiceKbd, sin);
int keycode;
bool up;
if (scancode == SCANCODE_EMUL0) {
kbd->emul0 = true;
return;
}
if (scancode == pauseseq[kbd->pauseseq]) {
kbd->pauseseq++;
if (kbd->pauseseq == G_N_ELEMENTS(pauseseq)) {
qemu_input_event_send_key_qcode(NULL, Q_KEY_CODE_PAUSE, true);
kbd->pauseseq = 0;
}
return;
} else {
kbd->pauseseq = 0;
}
keycode = scancode & ~SCANCODE_UP;
up = scancode & SCANCODE_UP;
if (kbd->emul0) {
kbd->emul0 = false;
keycode |= SCANCODE_GREY;
}
qemu_input_event_send_key_number(NULL, keycode, !up);
}
static uint8_t kbd_get_leds(SpiceKbdInstance *sin)
{
QemuSpiceKbd *kbd = container_of(sin, QemuSpiceKbd, sin);
return kbd->ledstate;
}
static void kbd_leds(void *opaque, int ledstate)
{
QemuSpiceKbd *kbd = opaque;
kbd->ledstate = 0;
if (ledstate & QEMU_SCROLL_LOCK_LED) {
kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_SCROLL_LOCK;
}
if (ledstate & QEMU_NUM_LOCK_LED) {
kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_NUM_LOCK;
}
if (ledstate & QEMU_CAPS_LOCK_LED) {
kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_CAPS_LOCK;
}
spice_server_kbd_leds(&kbd->sin, kbd->ledstate);
}
/* mouse bits */
typedef struct QemuSpicePointer {
SpiceMouseInstance mouse;
SpiceTabletInstance tablet;
int width, height;
uint32_t last_bmask;
Notifier mouse_mode;
bool absolute;
} QemuSpicePointer;
static void spice_update_buttons(QemuSpicePointer *pointer,
int wheel, uint32_t button_mask)
{
static uint32_t bmap[INPUT_BUTTON__MAX] = {
[INPUT_BUTTON_LEFT] = 0x01,
[INPUT_BUTTON_MIDDLE] = 0x04,
[INPUT_BUTTON_RIGHT] = 0x02,
[INPUT_BUTTON_WHEEL_UP] = 0x10,
[INPUT_BUTTON_WHEEL_DOWN] = 0x20,
};
if (wheel < 0) {
button_mask |= 0x10;
}
if (wheel > 0) {
button_mask |= 0x20;
}
if (pointer->last_bmask == button_mask) {
return;
}
qemu_input_update_buttons(NULL, bmap, pointer->last_bmask, button_mask);
pointer->last_bmask = button_mask;
}
static void mouse_motion(SpiceMouseInstance *sin, int dx, int dy, int dz,
uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, mouse);
spice_update_buttons(pointer, dz, buttons_state);
qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
qemu_input_event_sync();
}
static void mouse_buttons(SpiceMouseInstance *sin, uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, mouse);
spice_update_buttons(pointer, 0, buttons_state);
qemu_input_event_sync();
}
static const SpiceMouseInterface mouse_interface = {
.base.type = SPICE_INTERFACE_MOUSE,
.base.description = "mouse",
.base.major_version = SPICE_INTERFACE_MOUSE_MAJOR,
.base.minor_version = SPICE_INTERFACE_MOUSE_MINOR,
.motion = mouse_motion,
.buttons = mouse_buttons,
};
static void tablet_set_logical_size(SpiceTabletInstance* sin, int width, int height)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
if (height < 16) {
height = 16;
}
if (width < 16) {
width = 16;
}
pointer->width = width;
pointer->height = height;
}
static void tablet_position(SpiceTabletInstance* sin, int x, int y,
uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
spice_update_buttons(pointer, 0, buttons_state);
qemu_input_queue_abs(NULL, INPUT_AXIS_X, x, 0, pointer->width);
qemu_input_queue_abs(NULL, INPUT_AXIS_Y, y, 0, pointer->height);
qemu_input_event_sync();
}
static void tablet_wheel(SpiceTabletInstance* sin, int wheel,
uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
spice_update_buttons(pointer, wheel, buttons_state);
qemu_input_event_sync();
}
static void tablet_buttons(SpiceTabletInstance *sin,
uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
spice_update_buttons(pointer, 0, buttons_state);
qemu_input_event_sync();
}
static const SpiceTabletInterface tablet_interface = {
.base.type = SPICE_INTERFACE_TABLET,
.base.description = "tablet",
.base.major_version = SPICE_INTERFACE_TABLET_MAJOR,
.base.minor_version = SPICE_INTERFACE_TABLET_MINOR,
.set_logical_size = tablet_set_logical_size,
.position = tablet_position,
.wheel = tablet_wheel,
.buttons = tablet_buttons,
};
static void mouse_mode_notifier(Notifier *notifier, void *data)
{
QemuSpicePointer *pointer = container_of(notifier, QemuSpicePointer, mouse_mode);
bool is_absolute = qemu_input_is_absolute();
if (pointer->absolute == is_absolute) {
return;
}
if (is_absolute) {
qemu_spice_add_interface(&pointer->tablet.base);
} else {
spice_server_remove_interface(&pointer->tablet.base);
}
pointer->absolute = is_absolute;
}
void qemu_spice_input_init(void)
{
QemuSpiceKbd *kbd;
QemuSpicePointer *pointer;
kbd = g_malloc0(sizeof(*kbd));
kbd->sin.base.sif = &kbd_interface.base;
qemu_spice_add_interface(&kbd->sin.base);
qemu_add_led_event_handler(kbd_leds, kbd);
pointer = g_malloc0(sizeof(*pointer));
pointer->mouse.base.sif = &mouse_interface.base;
pointer->tablet.base.sif = &tablet_interface.base;
qemu_spice_add_interface(&pointer->mouse.base);
pointer->absolute = false;
pointer->mouse_mode.notify = mouse_mode_notifier;
qemu_add_mouse_mode_change_notifier(&pointer->mouse_mode);
mouse_mode_notifier(&pointer->mouse_mode, NULL);
}