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[Qemu-devel] [PULL 3/5] virtio-input: send rel-wheel events for wheel bu
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From: |
Gerd Hoffmann |
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Subject: |
[Qemu-devel] [PULL 3/5] virtio-input: send rel-wheel events for wheel buttons |
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Date: |
Fri, 29 Sep 2017 12:21:59 +0200 |
qemu uses wheel-up/down button events for mouse wheel input, however
linux applications typically want REL_WHEEL events.
This fixes wheel with linux guests. Tested with X11/wayland, and
windows virtio-input driver.
Based on a patch from Marc.
Added property to enable/disable wheel axis.
Cc: Marc-André Lureau <address@hidden>
Signed-off-by: Gerd Hoffmann <address@hidden>
Message-id: address@hidden
---
include/hw/compat.h | 10 +++-
include/hw/virtio/virtio-input.h | 1 +
hw/input/virtio-input-hid.c | 119 +++++++++++++++++++++++++++++++++++++--
3 files changed, 124 insertions(+), 6 deletions(-)
diff --git a/include/hw/compat.h b/include/hw/compat.h
index 9cc14dd798..cf389b4e85 100644
--- a/include/hw/compat.h
+++ b/include/hw/compat.h
@@ -2,7 +2,15 @@
#define HW_COMPAT_H
#define HW_COMPAT_2_10 \
- /* empty */
+ {\
+ .driver = "virtio-mouse-device",\
+ .property = "wheel-axis",\
+ .value = "false",\
+ },{\
+ .driver = "virtio-tablet-device",\
+ .property = "wheel-axis",\
+ .value = "false",\
+ },
#define HW_COMPAT_2_9 \
{\
diff --git a/include/hw/virtio/virtio-input.h b/include/hw/virtio/virtio-input.h
index 91df57eca4..054c38836f 100644
--- a/include/hw/virtio/virtio-input.h
+++ b/include/hw/virtio/virtio-input.h
@@ -89,6 +89,7 @@ struct VirtIOInputHID {
QemuInputHandler *handler;
QemuInputHandlerState *hs;
int ledstate;
+ bool wheel_axis;
};
struct VirtIOInputHost {
diff --git a/hw/input/virtio-input-hid.c b/hw/input/virtio-input-hid.c
index 4d3afc1b14..e78faec0b1 100644
--- a/hw/input/virtio-input-hid.c
+++ b/hw/input/virtio-input-hid.c
@@ -190,6 +190,7 @@ static void virtio_input_key_config(VirtIOInput *vinput,
static void virtio_input_handle_event(DeviceState *dev, QemuConsole *src,
InputEvent *evt)
{
+ VirtIOInputHID *vhid = VIRTIO_INPUT_HID(dev);
VirtIOInput *vinput = VIRTIO_INPUT(dev);
virtio_input_event event;
int qcode;
@@ -215,7 +216,14 @@ static void virtio_input_handle_event(DeviceState *dev,
QemuConsole *src,
break;
case INPUT_EVENT_KIND_BTN:
btn = evt->u.btn.data;
- if (keymap_button[btn->button]) {
+ if (vhid->wheel_axis && (btn->button == INPUT_BUTTON_WHEEL_UP ||
+ btn->button == INPUT_BUTTON_WHEEL_DOWN)) {
+ event.type = cpu_to_le16(EV_REL);
+ event.code = cpu_to_le16(REL_WHEEL);
+ event.value = cpu_to_le32(btn->button == INPUT_BUTTON_WHEEL_UP
+ ? 1 : -1);
+ virtio_input_send(vinput, &event);
+ } else if (keymap_button[btn->button]) {
event.type = cpu_to_le16(EV_KEY);
event.code = cpu_to_le16(keymap_button[btn->button]);
event.value = cpu_to_le32(btn->down ? 1 : 0);
@@ -407,7 +415,7 @@ static QemuInputHandler virtio_mouse_handler = {
.sync = virtio_input_handle_sync,
};
-static struct virtio_input_config virtio_mouse_config[] = {
+static struct virtio_input_config virtio_mouse_config_v1[] = {
{
.select = VIRTIO_INPUT_CFG_ID_NAME,
.size = sizeof(VIRTIO_ID_NAME_MOUSE),
@@ -432,13 +440,53 @@ static struct virtio_input_config virtio_mouse_config[] =
{
{ /* end of list */ },
};
+static struct virtio_input_config virtio_mouse_config_v2[] = {
+ {
+ .select = VIRTIO_INPUT_CFG_ID_NAME,
+ .size = sizeof(VIRTIO_ID_NAME_MOUSE),
+ .u.string = VIRTIO_ID_NAME_MOUSE,
+ },{
+ .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
+ .size = sizeof(struct virtio_input_devids),
+ .u.ids = {
+ .bustype = const_le16(BUS_VIRTUAL),
+ .vendor = const_le16(0x0627), /* same we use for usb hid devices
*/
+ .product = const_le16(0x0002),
+ .version = const_le16(0x0002),
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_EV_BITS,
+ .subsel = EV_REL,
+ .size = 2,
+ .u.bitmap = {
+ (1 << REL_X) | (1 << REL_Y),
+ (1 << (REL_WHEEL - 8))
+ },
+ },
+ { /* end of list */ },
+};
+
+static Property virtio_mouse_properties[] = {
+ DEFINE_PROP_BOOL("wheel-axis", VirtIOInputHID, wheel_axis, true),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_mouse_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->props = virtio_mouse_properties;
+}
+
static void virtio_mouse_init(Object *obj)
{
VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
VirtIOInput *vinput = VIRTIO_INPUT(obj);
vhid->handler = &virtio_mouse_handler;
- virtio_input_init_config(vinput, virtio_mouse_config);
+ virtio_input_init_config(vinput, vhid->wheel_axis
+ ? virtio_mouse_config_v2
+ : virtio_mouse_config_v1);
virtio_input_key_config(vinput, keymap_button,
ARRAY_SIZE(keymap_button));
}
@@ -448,6 +496,7 @@ static const TypeInfo virtio_mouse_info = {
.parent = TYPE_VIRTIO_INPUT_HID,
.instance_size = sizeof(VirtIOInputHID),
.instance_init = virtio_mouse_init,
+ .class_init = virtio_mouse_class_init,
};
/* ----------------------------------------------------------------- */
@@ -459,7 +508,7 @@ static QemuInputHandler virtio_tablet_handler = {
.sync = virtio_input_handle_sync,
};
-static struct virtio_input_config virtio_tablet_config[] = {
+static struct virtio_input_config virtio_tablet_config_v1[] = {
{
.select = VIRTIO_INPUT_CFG_ID_NAME,
.size = sizeof(VIRTIO_ID_NAME_TABLET),
@@ -496,13 +545,72 @@ static struct virtio_input_config virtio_tablet_config[]
= {
{ /* end of list */ },
};
+static struct virtio_input_config virtio_tablet_config_v2[] = {
+ {
+ .select = VIRTIO_INPUT_CFG_ID_NAME,
+ .size = sizeof(VIRTIO_ID_NAME_TABLET),
+ .u.string = VIRTIO_ID_NAME_TABLET,
+ },{
+ .select = VIRTIO_INPUT_CFG_ID_DEVIDS,
+ .size = sizeof(struct virtio_input_devids),
+ .u.ids = {
+ .bustype = const_le16(BUS_VIRTUAL),
+ .vendor = const_le16(0x0627), /* same we use for usb hid devices
*/
+ .product = const_le16(0x0003),
+ .version = const_le16(0x0002),
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_EV_BITS,
+ .subsel = EV_ABS,
+ .size = 1,
+ .u.bitmap = {
+ (1 << ABS_X) | (1 << ABS_Y),
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_EV_BITS,
+ .subsel = EV_REL,
+ .size = 2,
+ .u.bitmap = {
+ 0,
+ (1 << (REL_WHEEL - 8))
+ },
+ },{
+ .select = VIRTIO_INPUT_CFG_ABS_INFO,
+ .subsel = ABS_X,
+ .size = sizeof(virtio_input_absinfo),
+ .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
+ .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
+ },{
+ .select = VIRTIO_INPUT_CFG_ABS_INFO,
+ .subsel = ABS_Y,
+ .size = sizeof(virtio_input_absinfo),
+ .u.abs.min = const_le32(INPUT_EVENT_ABS_MIN),
+ .u.abs.max = const_le32(INPUT_EVENT_ABS_MAX),
+ },
+ { /* end of list */ },
+};
+
+static Property virtio_tablet_properties[] = {
+ DEFINE_PROP_BOOL("wheel-axis", VirtIOInputHID, wheel_axis, true),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_tablet_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->props = virtio_tablet_properties;
+}
+
static void virtio_tablet_init(Object *obj)
{
VirtIOInputHID *vhid = VIRTIO_INPUT_HID(obj);
VirtIOInput *vinput = VIRTIO_INPUT(obj);
vhid->handler = &virtio_tablet_handler;
- virtio_input_init_config(vinput, virtio_tablet_config);
+ virtio_input_init_config(vinput, vhid->wheel_axis
+ ? virtio_tablet_config_v2
+ : virtio_tablet_config_v1);
virtio_input_key_config(vinput, keymap_button,
ARRAY_SIZE(keymap_button));
}
@@ -512,6 +620,7 @@ static const TypeInfo virtio_tablet_info = {
.parent = TYPE_VIRTIO_INPUT_HID,
.instance_size = sizeof(VirtIOInputHID),
.instance_init = virtio_tablet_init,
+ .class_init = virtio_tablet_class_init,
};
/* ----------------------------------------------------------------- */
--
2.9.3