/*
* Send a mouse event from the client to the guest OS
*
* The QEMU mouse can be in either relative, or absolute mode.
* Movement is sent separately from button state, which has to
* be encoded as virtual key events. We also don't actually get
* given any button up/down events, so have to track changes in
* the button state.
*/
static void xenfb_mouse_event(void *opaque,
int dx, int dy, int dz, int button_state)
{
struct XenInput *xenfb = opaque;
DisplaySurface *surface = qemu_console_surface(xenfb->c.con);
int dw = surface_width(surface);
int dh = surface_height(surface);
int i;
trace_xenfb_mouse_event(opaque, dx, dy, dz, button_state,
xenfb->abs_pointer_wanted);
if (xenfb->abs_pointer_wanted)
xenfb_send_position(xenfb,
dx * (dw - 1) / 0x7fff,
dy * (dh - 1) / 0x7fff,
dz);
else
xenfb_send_motion(xenfb, dx, dy, dz);
for (i = 0 ; i < 8 ; i++) {
int lastDown = xenfb->button_state & (1 << i);
int down = button_state & (1 << i);
if (down == lastDown)
continue;
if (xenfb_send_key(xenfb, down, BTN_LEFT+i) < 0)
return;
}
xenfb->button_state = button_state;
}
/*
* Send a mouse event from the client to the guest OS
*
* The QEMU mouse can be in either relative, or absolute mode.
* Movement is sent separately from button state, which has to
* be encoded as virtual key events. We also don't actually get
* given any button up/down events, so have to track changes in
* the button state.
*/
static void xenfb_mouse_event(void *opaque,
int dx, int dy, int dz, int button_state)
{
struct XenInput *xenfb = opaque;
int dw = ds_get_width(xenfb->c.ds);
int dh = ds_get_height(xenfb->c.ds);
int i;
if (xenfb->abs_pointer_wanted)
xenfb_send_position(xenfb,
dx * (dw - 1) / 0x7fff,
dy * (dh - 1) / 0x7fff,
dz);
else
xenfb_send_motion(xenfb, dx, dy, dz);
for (i = 0 ; i < 8 ; i++) {
int lastDown = xenfb->button_state & (1 << i);
int down = button_state & (1 << i);
if (down == lastDown)
continue;
if (xenfb_send_key(xenfb, down, BTN_LEFT+i) < 0)
return;
}
xenfb->button_state = button_state;
}
/*
* Send a key event from the client to the guest OS
* QEMU gives us a raw scancode from an AT / PS/2 style keyboard.
* We have to turn this into a Linux Input layer keycode.
*
* Extra complexity from the fact that with extended scancodes
* (like those produced by arrow keys) this method gets called
* twice, but we only want to send a single event. So we have to
* track the '0xe0' scancode state & collapse the extended keys
* as needed.
*
* Wish we could just send scancodes straight to the guest which
* already has code for dealing with this...
*/
static void xenfb_key_event(void *opaque, int scancode)
{
static int extended = 0;
int down = 1;
if (scancode == 0xe0) {
extended = 1;
return;
} else if (scancode & 0x80) {
scancode &= 0x7f;
down = 0;
}
if (extended) {
scancode |= 0x80;
extended = 0;
}
xenfb_send_key(opaque, down, scancode2linux[scancode]);
}
/*
* Send a key event from the client to the guest OS
* QEMU gives us a QCode.
* We have to turn this into a Linux Input layer keycode.
*
* Wish we could just send scancodes straight to the guest which
* already has code for dealing with this...
*/
static void xenfb_key_event(DeviceState *dev, QemuConsole *src,
InputEvent *evt)
{
struct XenInput *xenfb = (struct XenInput *)dev;
InputKeyEvent *key = evt->u.key.data;
int qcode = qemu_input_key_value_to_qcode(key->key);
int lnx;
if (qcode < qemu_input_map_qcode_to_linux_len) {
lnx = qemu_input_map_qcode_to_linux[qcode];
if (lnx) {
trace_xenfb_key_event(xenfb, lnx, key->down);
xenfb_send_key(xenfb, key->down, lnx);
}
}
}
/*
* Send a key event from the client to the guest OS
* QEMU gives us a raw scancode from an AT / PS/2 style keyboard.
* We have to turn this into a Linux Input layer keycode.
*
* Extra complexity from the fact that with extended scancodes
* (like those produced by arrow keys) this method gets called
* twice, but we only want to send a single event. So we have to
* track the '0xe0' scancode state & collapse the extended keys
* as needed.
*
* Wish we could just send scancodes straight to the guest which
* already has code for dealing with this...
*/
static void xenfb_key_event(void *opaque, int scancode)
{
struct XenInput *xenfb = opaque;
int down = 1;
if (scancode == 0xe0) {
xenfb->extended = 1;
return;
} else if (scancode & 0x80) {
scancode &= 0x7f;
down = 0;
}
if (xenfb->extended) {
scancode |= 0x80;
xenfb->extended = 0;
}
xenfb_send_key(xenfb, down, scancode2linux[scancode]);
}
/*
* Send a mouse event from the client to the guest OS
*
* The QEMU mouse can be in either relative, or absolute mode.
* Movement is sent separately from button state, which has to
* be encoded as virtual key events. We also don't actually get
* given any button up/down events, so have to track changes in
* the button state.
*/
static void xenfb_mouse_event(void *opaque,
int dx, int dy, int dz, int button_state)
{
int i;
struct xenfb *xenfb = opaque;
if (xenfb->abs_pointer_wanted)
xenfb_send_position(xenfb,
dx * (xenfb->ds->width - 1) / 0x7fff,
dy * (xenfb->ds->height - 1) / 0x7fff,
dz);
else
xenfb_send_motion(xenfb, dx, dy, dz);
for (i = 0 ; i < 8 ; i++) {
int lastDown = xenfb->button_state & (1 << i);
int down = button_state & (1 << i);
if (down == lastDown)
continue;
if (xenfb_send_key(xenfb, down, BTN_LEFT+i) < 0)
return;
}
xenfb->button_state = button_state;
}
/*
* Send a mouse event from the client to the guest OS
*
* The QEMU mouse can be in either relative, or absolute mode.
* Movement is sent separately from button state, which has to
* be encoded as virtual key events. We also don't actually get
* given any button up/down events, so have to track changes in
* the button state.
*/
static void xenfb_mouse_event(DeviceState *dev, QemuConsole *src,
InputEvent *evt)
{
struct XenInput *xenfb = (struct XenInput *)dev;
InputBtnEvent *btn;
InputMoveEvent *move;
QemuConsole *con;
DisplaySurface *surface;
int scale;
switch (evt->type) {
case INPUT_EVENT_KIND_BTN:
btn = evt->u.btn.data;
switch (btn->button) {
case INPUT_BUTTON_LEFT:
xenfb_send_key(xenfb, btn->down, BTN_LEFT);
break;
case INPUT_BUTTON_RIGHT:
xenfb_send_key(xenfb, btn->down, BTN_LEFT + 1);
break;
case INPUT_BUTTON_MIDDLE:
xenfb_send_key(xenfb, btn->down, BTN_LEFT + 2);
break;
case INPUT_BUTTON_WHEEL_UP:
if (btn->down) {
xenfb->wheel--;
}
break;
case INPUT_BUTTON_WHEEL_DOWN:
if (btn->down) {
xenfb->wheel++;
}
break;
default:
break;
}
break;
case INPUT_EVENT_KIND_ABS:
move = evt->u.abs.data;
if (xenfb->raw_pointer_wanted) {
xenfb->axis[move->axis] = move->value;
} else {
con = qemu_console_lookup_by_index(0);
if (!con) {
xen_pv_printf(&xenfb->c.xendev, 0, "No QEMU console available");
return;
}
surface = qemu_console_surface(con);
switch (move->axis) {
case INPUT_AXIS_X:
scale = surface_width(surface) - 1;
break;
case INPUT_AXIS_Y:
scale = surface_height(surface) - 1;
break;
default:
scale = 0x8000;
break;
}
xenfb->axis[move->axis] = move->value * scale / 0x7fff;
}
break;
case INPUT_EVENT_KIND_REL:
move = evt->u.rel.data;
xenfb->axis[move->axis] += move->value;
break;
default:
break;
}
}
