On Friday, November 10, 2017 3:15:55 AM CET Darren Hart wrote:
> On Thu, Nov 09, 2017 at 11:44:33PM +0100, Stefan Brüns wrote:
> > Currently all key events use autorelease, but this forbids use as a
> > modifier key.
> >
> > As all event codes come in even/odd pairs, we can lookup the key type
> > (KE_KEY/KE_IGNORE) for the key up event corresponding to the currently
> > handled key down event. If the key up is ignored, we keep setting the
> > autorelease flag for the key down.
> >
> > Signed-off-by: Stefan Brüns <stefan.bruens@xxxxxxxxxxxxxx>
>
> +Dmitry, curious for your take on this approach.
Any response would be appreciated. This is required to make Volume keys work
properly.
> > ---
> >
> > Changes in v2:
> > - New patch, add support for seperate key up/down in intel-vbtn
> >
> > drivers/platform/x86/intel-vbtn.c | 17 +++++++++++++++--
> > 1 file changed, 15 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/platform/x86/intel-vbtn.c
> > b/drivers/platform/x86/intel-vbtn.c index ae55be91a64b..e3f6375af85c
> > 100644
> > --- a/drivers/platform/x86/intel-vbtn.c
> > +++ b/drivers/platform/x86/intel-vbtn.c
> > @@ -76,14 +76,27 @@ static void notify_handler(acpi_handle handle, u32
> > event, void *context)>
> > {
> >
> > struct platform_device *device = context;
> > struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
> >
> > + const struct key_entry *ke_rel;
> > + bool autorelease;
> >
> > if (priv->wakeup_mode) {
> >
> > if (sparse_keymap_entry_from_scancode(priv->input_dev, event)) {
> >
> > pm_wakeup_hard_event(&device->dev);
> > return;
> >
> > }
> >
> > - } else if (sparse_keymap_report_event(priv->input_dev, event, 1, true))
> > {
> > - return;
> > + } else {
> > + /* Use the fact press/release come in even/odd pairs */
> > + if ((event & 1) && sparse_keymap_report_event(priv->input_dev,
> > + event, 0, false))
> > + return;
> > +
> > + ke_rel = sparse_keymap_entry_from_scancode(priv->input_dev,
> > + event | 1);
> > + autorelease = !ke_rel || ke_rel->type == KE_IGNORE;
> > +
> > + if (sparse_keymap_report_event(priv->input_dev, event, 1,
> > + autorelease))
> > + return;
> >
> > }
> > dev_dbg(&device->dev, "unknown event index 0x%x\n", event);
> >
> > }
--
Stefan Brüns / Bergstraße 21 / 52062 Aachen
home: +49 241 53809034 mobile: +49 151 50412019Attachment:
signature.asc
Description: This is a digitally signed message part.
