xemu/include/hw/virtio/virtio-input.h
Gerd Hoffmann f4924974c7 virtio-input: send rel-wheel events for wheel buttons
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 <marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20170926113243.26081-1-kraxel@redhat.com
2017-09-29 10:36:33 +02:00

113 lines
4.1 KiB
C

#ifndef QEMU_VIRTIO_INPUT_H
#define QEMU_VIRTIO_INPUT_H
#include "ui/input.h"
/* ----------------------------------------------------------------- */
/* virtio input protocol */
#include "standard-headers/linux/virtio_ids.h"
#include "standard-headers/linux/virtio_input.h"
typedef struct virtio_input_absinfo virtio_input_absinfo;
typedef struct virtio_input_config virtio_input_config;
typedef struct virtio_input_event virtio_input_event;
/* ----------------------------------------------------------------- */
/* qemu internals */
#define TYPE_VIRTIO_INPUT "virtio-input-device"
#define VIRTIO_INPUT(obj) \
OBJECT_CHECK(VirtIOInput, (obj), TYPE_VIRTIO_INPUT)
#define VIRTIO_INPUT_GET_PARENT_CLASS(obj) \
OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_INPUT)
#define VIRTIO_INPUT_GET_CLASS(obj) \
OBJECT_GET_CLASS(VirtIOInputClass, obj, TYPE_VIRTIO_INPUT)
#define VIRTIO_INPUT_CLASS(klass) \
OBJECT_CLASS_CHECK(VirtIOInputClass, klass, TYPE_VIRTIO_INPUT)
#define TYPE_VIRTIO_INPUT_HID "virtio-input-hid-device"
#define TYPE_VIRTIO_KEYBOARD "virtio-keyboard-device"
#define TYPE_VIRTIO_MOUSE "virtio-mouse-device"
#define TYPE_VIRTIO_TABLET "virtio-tablet-device"
#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 TYPE_VIRTIO_INPUT_HOST "virtio-input-host-device"
#define VIRTIO_INPUT_HOST(obj) \
OBJECT_CHECK(VirtIOInputHost, (obj), TYPE_VIRTIO_INPUT_HOST)
#define VIRTIO_INPUT_HOST_GET_PARENT_CLASS(obj) \
OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_INPUT_HOST)
typedef struct VirtIOInput VirtIOInput;
typedef struct VirtIOInputClass VirtIOInputClass;
typedef struct VirtIOInputConfig VirtIOInputConfig;
typedef struct VirtIOInputHID VirtIOInputHID;
typedef struct VirtIOInputHost VirtIOInputHost;
struct VirtIOInputConfig {
virtio_input_config config;
QTAILQ_ENTRY(VirtIOInputConfig) node;
};
struct VirtIOInput {
VirtIODevice parent_obj;
uint8_t cfg_select;
uint8_t cfg_subsel;
uint32_t cfg_size;
QTAILQ_HEAD(, VirtIOInputConfig) cfg_list;
VirtQueue *evt, *sts;
char *serial;
struct {
virtio_input_event event;
VirtQueueElement *elem;
} *queue;
uint32_t qindex, qsize;
bool active;
};
struct VirtIOInputClass {
/*< private >*/
VirtioDeviceClass parent;
/*< public >*/
DeviceRealize realize;
DeviceUnrealize unrealize;
void (*change_active)(VirtIOInput *vinput);
void (*handle_status)(VirtIOInput *vinput, virtio_input_event *event);
};
struct VirtIOInputHID {
VirtIOInput parent_obj;
char *display;
uint32_t head;
QemuInputHandler *handler;
QemuInputHandlerState *hs;
int ledstate;
bool wheel_axis;
};
struct VirtIOInputHost {
VirtIOInput parent_obj;
char *evdev;
int fd;
};
void virtio_input_send(VirtIOInput *vinput, virtio_input_event *event);
void virtio_input_init_config(VirtIOInput *vinput,
virtio_input_config *config);
virtio_input_config *virtio_input_find_config(VirtIOInput *vinput,
uint8_t select,
uint8_t subsel);
void virtio_input_add_config(VirtIOInput *vinput,
virtio_input_config *config);
void virtio_input_idstr_config(VirtIOInput *vinput,
uint8_t select, const char *string);
#endif /* QEMU_VIRTIO_INPUT_H */