static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct uinput_device *udev = input_get_drvdata(dev);
struct uinput_request request;
int retval;
/*
* uinput driver does not currently support periodic effects with
* custom waveform since it does not have a way to pass buffer of
* samples (custom_data) to userspace. If ever there is a device
* supporting custom waveforms we would need to define an additional
* ioctl (UI_UPLOAD_SAMPLES) but for now we just bail out.
*/
if (effect->type == FF_PERIODIC &&
effect->u.periodic.waveform == FF_CUSTOM)
return -EINVAL;
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_UPLOAD;
request.u.upload.effect = effect;
request.u.upload.old = old;
retval = uinput_request_submit(udev, &request);
if (!retval) {
wait_for_completion(&request.done);
retval = request.retval;
}
return retval;
}
static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct uinput_device *udev = input_get_drvdata(dev);
struct uinput_request request;
int retval;
if (effect->type == FF_PERIODIC &&
effect->u.periodic.waveform == FF_CUSTOM)
return -EINVAL;
request.retval= 0;
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_UPLOAD;
request.u.upload.effect = effect;
request.u.upload.old = old;
retval = uinput_request_submit(udev, &request);
if (!retval) {
wait_for_completion(&request.done);
retval = request.retval;
}
return retval;
}
static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
{
struct uinput_device *udev = input_get_drvdata(dev);
struct uinput_request request;
if (!test_bit(EV_FF, dev->evbit))
return -ENOSYS;
request.code = UI_FF_ERASE;
request.u.effect_id = effect_id;
return uinput_request_submit(udev, &request);
}
static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct uinput_request request;
int retval;
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_UPLOAD;
request.u.upload.effect = effect;
request.u.upload.old = old;
retval = uinput_request_reserve_slot(input_get_drvdata(dev), &request);
if (!retval)
retval = uinput_request_submit(dev, &request);
return retval;
}
static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
{
struct uinput_request request;
int retval;
if (!test_bit(EV_FF, dev->evbit))
return -ENOSYS;
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_ERASE;
request.u.effect_id = effect_id;
retval = uinput_request_reserve_slot(input_get_drvdata(dev), &request);
if (!retval)
retval = uinput_request_submit(dev, &request);
return retval;
}
