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virtio-input: implement pass-through evdev writes 

The write path for pass-through devices, commonly used for controlling
keyboard LEDs via EV_LED, was not implemented. This commit adds the
necessary plumbing to connect the status virtio queue to the host evdev
file descriptor.

Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Message-id: 1459511146-12060-1-git-send-email-lprosek@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Ladi Prosek 2016-04-01 13:45:46 +02:00 committed by Gerd Hoffmann
parent 848c4d4480
commit 1a782629f6
1 changed files with 23 additions and 0 deletions
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23
hw/input/virtio-input-host.c
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@ -146,6 +146,28 @@ static void virtio_input_host_unrealize(DeviceState *dev, Error **errp)
}
}
static void virtio_input_host_handle_status(VirtIOInput *vinput,
virtio_input_event *event)
{
VirtIOInputHost *vih = VIRTIO_INPUT_HOST(vinput);
struct input_event evdev;
int rc;
if (gettimeofday(&evdev.time, NULL)) {
perror("virtio_input_host_handle_status: gettimeofday");
return;
}
evdev.type = le16_to_cpu(event->type);
evdev.code = le16_to_cpu(event->code);
evdev.value = le32_to_cpu(event->value);
rc = write(vih->fd, &evdev, sizeof(evdev));
if (rc == -1) {
perror("virtio_input_host_handle_status: write");
}
}
static const VMStateDescription vmstate_virtio_input_host = {
.name = "virtio-input-host",
.unmigratable = 1,
@ -165,6 +187,7 @@ static void virtio_input_host_class_init(ObjectClass *klass, void *data)
dc->props = virtio_input_host_properties;
vic->realize = virtio_input_host_realize;
vic->unrealize = virtio_input_host_unrealize;
vic->handle_status = virtio_input_host_handle_status;
}
static void virtio_input_host_init(Object *obj)