8e9ebd7523
Add a virtio-multitouch device to the family of devices emulated by virtio-input implementing the Multi-touch protocol as descripted here: https://www.kernel.org/doc/html/latest/input/multi-touch-protocol.html?highlight=multi+touch This patch just add the device itself, without connecting it to any backends. The following patches will add a PCI-based multitouch device, some helpers in "ui" and will enable the GTK3 backend to transpose multi-touch events from the host to the guest. Signed-off-by: Sergio Lopez <slp@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20230526112925.38794-4-slp@redhat.com>
117 lines
4.1 KiB
C
117 lines
4.1 KiB
C
#ifndef QEMU_VIRTIO_INPUT_H
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#define QEMU_VIRTIO_INPUT_H
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#include "ui/input.h"
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#include "sysemu/vhost-user-backend.h"
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/* ----------------------------------------------------------------- */
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/* virtio input protocol */
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#include "standard-headers/linux/virtio_ids.h"
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#include "standard-headers/linux/virtio_input.h"
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#include "qom/object.h"
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typedef struct virtio_input_absinfo virtio_input_absinfo;
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typedef struct virtio_input_config virtio_input_config;
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typedef struct virtio_input_event virtio_input_event;
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/* ----------------------------------------------------------------- */
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/* qemu internals */
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#define TYPE_VIRTIO_INPUT "virtio-input-device"
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OBJECT_DECLARE_TYPE(VirtIOInput, VirtIOInputClass,
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VIRTIO_INPUT)
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#define VIRTIO_INPUT_GET_PARENT_CLASS(obj) \
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OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_INPUT)
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#define TYPE_VIRTIO_INPUT_HID "virtio-input-hid-device"
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#define TYPE_VIRTIO_KEYBOARD "virtio-keyboard-device"
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#define TYPE_VIRTIO_MOUSE "virtio-mouse-device"
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#define TYPE_VIRTIO_TABLET "virtio-tablet-device"
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#define TYPE_VIRTIO_MULTITOUCH "virtio-multitouch-device"
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OBJECT_DECLARE_SIMPLE_TYPE(VirtIOInputHID, VIRTIO_INPUT_HID)
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#define VIRTIO_INPUT_HID_GET_PARENT_CLASS(obj) \
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OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_INPUT_HID)
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#define TYPE_VIRTIO_INPUT_HOST "virtio-input-host-device"
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OBJECT_DECLARE_SIMPLE_TYPE(VirtIOInputHost, VIRTIO_INPUT_HOST)
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#define VIRTIO_INPUT_HOST_GET_PARENT_CLASS(obj) \
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OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_INPUT_HOST)
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#define TYPE_VHOST_USER_INPUT "vhost-user-input"
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OBJECT_DECLARE_SIMPLE_TYPE(VHostUserInput, VHOST_USER_INPUT)
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#define VHOST_USER_INPUT_GET_PARENT_CLASS(obj) \
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OBJECT_GET_PARENT_CLASS(obj, TYPE_VHOST_USER_INPUT)
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typedef struct VirtIOInputConfig VirtIOInputConfig;
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struct VirtIOInputConfig {
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virtio_input_config config;
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QTAILQ_ENTRY(VirtIOInputConfig) node;
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};
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struct VirtIOInput {
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VirtIODevice parent_obj;
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uint8_t cfg_select;
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uint8_t cfg_subsel;
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uint32_t cfg_size;
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QTAILQ_HEAD(, VirtIOInputConfig) cfg_list;
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VirtQueue *evt, *sts;
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char *serial;
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struct {
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virtio_input_event event;
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VirtQueueElement *elem;
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} *queue;
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uint32_t qindex, qsize;
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bool active;
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};
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struct VirtIOInputClass {
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/*< private >*/
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VirtioDeviceClass parent;
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/*< public >*/
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DeviceRealize realize;
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DeviceUnrealize unrealize;
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void (*change_active)(VirtIOInput *vinput);
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void (*handle_status)(VirtIOInput *vinput, virtio_input_event *event);
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};
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struct VirtIOInputHID {
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VirtIOInput parent_obj;
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char *display;
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uint32_t head;
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QemuInputHandler *handler;
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QemuInputHandlerState *hs;
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int ledstate;
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bool wheel_axis;
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};
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struct VirtIOInputHost {
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VirtIOInput parent_obj;
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char *evdev;
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int fd;
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};
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struct VHostUserInput {
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VirtIOInput parent_obj;
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VhostUserBackend *vhost;
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};
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void virtio_input_send(VirtIOInput *vinput, virtio_input_event *event);
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void virtio_input_init_config(VirtIOInput *vinput,
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virtio_input_config *config);
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virtio_input_config *virtio_input_find_config(VirtIOInput *vinput,
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uint8_t select,
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uint8_t subsel);
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void virtio_input_add_config(VirtIOInput *vinput,
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virtio_input_config *config);
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void virtio_input_idstr_config(VirtIOInput *vinput,
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uint8_t select, const char *string);
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#endif /* QEMU_VIRTIO_INPUT_H */
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