virtio-input: emulated devices [device]

This patch adds the virtio-input-hid base class and
virtio-{keyboard,mouse,tablet} subclasses building on the base class.
They are hooked up to the qemu input core and deliver input events
to the guest like all other hid devices (ps/2 kbd, usb tablet, ...).

Using them is as simple as adding "-device virtio-tablet-device" to
your command line, for use all transports except pci.  virtio-pci
support comes as separate patch, once virtio-pci got virtio 1.0
support.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2014-04-01 10:06:29 +02:00
parent f73ddbad39
commit 55a1d80a41
3 changed files with 524 additions and 0 deletions

View file

@ -34,9 +34,23 @@ typedef struct virtio_input_event virtio_input_event;
#define VIRTIO_INPUT_CLASS(klass) \
OBJECT_CLASS_CHECK(VirtIOInputClass, klass, TYPE_VIRTIO_INPUT)
#define TYPE_VIRTIO_INPUT_HID "virtio-input-hid"
#define TYPE_VIRTIO_KEYBOARD "virtio-keyboard"
#define TYPE_VIRTIO_MOUSE "virtio-mouse"
#define TYPE_VIRTIO_TABLET "virtio-tablet"
#define VIRTIO_INPUT_HID(obj) \
OBJECT_CHECK(VirtIOInputHID, (obj), TYPE_VIRTIO_INPUT_HID)
#define VIRTIO_INPUT_HID_GET_PARENT_CLASS(obj) \
OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_INPUT_HID)
#define DEFINE_VIRTIO_INPUT_PROPERTIES(_state, _field) \
DEFINE_PROP_STRING("serial", _state, _field.serial)
typedef struct VirtIOInput VirtIOInput;
typedef struct VirtIOInputClass VirtIOInputClass;
typedef struct VirtIOInputConfig VirtIOInputConfig;
typedef struct VirtIOInputHID VirtIOInputHID;
struct virtio_input_conf {
char *serial;
@ -73,6 +87,13 @@ struct VirtIOInputClass {
void (*handle_status)(VirtIOInput *vinput, virtio_input_event *event);
};
struct VirtIOInputHID {
VirtIOInput parent_obj;
QemuInputHandler *handler;
QemuInputHandlerState *hs;
int ledstate;
};
void virtio_input_send(VirtIOInput *vinput, virtio_input_event *event);
void virtio_input_init_config(VirtIOInput *vinput,
virtio_input_config *config);