Re: [PATCH 05/12] Input: synaptics - process button bits in AGM packets

Dmitry Torokhov
2011-07-07T06:24:14Z

On Tue, Jul 05, 2011 at 10:47:19AM -0700, Chase Douglas wrote:
> On 06/28/2011 10:07 PM, djkurtz@chromium.org wrote:
> > From: Daniel Kurtz <djkurtz@chromium.org>
> >
> > AGM packets contain valid button bits, too.
> > This patch refactors packet processing to parse button bits in AGM packets.
> > However, they aren't actually used or reported.
> >
> > The point is to more completely process AGM packets,
> > and prepare for future patches that may actually use AGM packet button bits.
> >
> > Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
>
> I can't see anything wrong with this :).
>
> Acked-by: Chase Douglas <chase.douglas@canonical.com>
>

Applied with minor edits.

> > ---
> > drivers/input/mouse/synaptics.c | 35 ++++++++++++++++++-----------------
> > 1 files changed, 18 insertions(+), 17 deletions(-)
> >
> > diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
> > index 1ce47b7..74b1222 100644
> > --- a/drivers/input/mouse/synaptics.c
> > +++ b/drivers/input/mouse/synaptics.c
> > @@ -408,27 +408,10 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
> > memset(hw, 0, sizeof(struct synaptics_hw_state));
> >
> > if (SYN_MODEL_NEWABS(priv->model_id)) {
> > - hw->x = (((buf[3] & 0x10) << 8) |
> > - ((buf[1] & 0x0f) << 8) |
> > - buf[4]);
> > - hw->y = INVERT_Y((((buf[3] & 0x20) << 7) |
> > - ((buf[1] & 0xf0) << 4) |
> > - buf[5]));
> > -
> > - hw->z = buf[2];
> > hw->w = (((buf[0] & 0x30) >> 2) |
> > ((buf[0] & 0x04) >> 1) |
> > ((buf[3] & 0x04) >> 2));
> >
> > - if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) && hw->w == 2) {
> > - /* Gesture packet: (x, y, z) at half resolution */
> > - priv->mt.x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
> > - priv->mt.y = INVERT_Y((((buf[4] & 0xf0) << 4)
> > - | buf[2]) << 1);
> > - priv->mt.z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
> > - return 1;
> > - }
> > -
> > hw->left = (buf[0] & 0x01) ? 1 : 0;
> > hw->right = (buf[0] & 0x02) ? 1 : 0;
> >
> > @@ -451,6 +434,24 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
> > hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
> > }
> >
> > + if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) && hw->w == 2) {
> > + /* Gesture packet: (x, y, z) at half resolution */
> > + priv->mt.x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
> > + priv->mt.y = INVERT_Y((((buf[4] & 0xf0) << 4)
> > + | buf[2]) << 1);
> > + priv->mt.z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
> > + return 1;
> > + } else {
> > + hw->x = (((buf[3] & 0x10) << 8) |
> > + ((buf[1] & 0x0f) << 8) |
> > + buf[4]);
> > + hw->y = INVERT_Y((((buf[3] & 0x20) << 7) |
> > + ((buf[1] & 0xf0) << 4) |
> > + buf[5]));
> > +
> > + hw->z = buf[2];
> > + }
> > +
> > if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
> > ((buf[0] ^ buf[3]) & 0x02)) {
> > switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
>

--
Dmitry