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authorBen Gamari <ben@smart-cactus.org>2016-10-04 21:41:58 +0300
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2016-10-04 21:46:54 +0300
commit7ad8a1067dfc3bf74ad2daef013ea4f3df1841a7 (patch)
tree4d46b9136460886289b9d6be6bd96f105de6b476 /drivers/input/mouse
parenta831776323e7c532ef9c88d0d62512ae15d78415 (diff)
downloadlinux-7ad8a1067dfc3bf74ad2daef013ea4f3df1841a7.tar.xz
Input: ALPS - allow touchsticks to report pressure
The SS5 hardware can report this. Tested-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Ben Gamari <ben@smart-cactus.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse')
-rw-r--r--drivers/input/mouse/alps.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index a76e5c6fce54..bb0b7230cf3b 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -103,6 +103,7 @@ static const struct alps_nibble_commands alps_v6_nibble_commands[] = {
6-byte ALPS packet */
#define ALPS_STICK_BITS 0x100 /* separate stick button bits */
#define ALPS_BUTTONPAD 0x200 /* device is a clickpad */
+#define ALPS_DUALPOINT_WITH_PRESSURE 0x400 /* device can report trackpoint pressure */
static const struct alps_model_info alps_model_data[] = {
{ { 0x32, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT } }, /* Toshiba Salellite Pro M10 */
@@ -1272,9 +1273,11 @@ static int alps_decode_ss4_v2(struct alps_fields *f,
} else {
int x = (s8)(((p[0] & 1) << 7) | (p[1] & 0x7f));
int y = (s8)(((p[3] & 1) << 7) | (p[2] & 0x7f));
+ int pressure = (s8)(p[4] & 0x7f);
input_report_rel(priv->dev2, REL_X, x);
input_report_rel(priv->dev2, REL_Y, -y);
+ input_report_abs(priv->dev2, ABS_PRESSURE, pressure);
}
break;
@@ -2998,6 +3001,10 @@ int alps_init(struct psmouse *psmouse)
input_set_capability(dev2, EV_REL, REL_X);
input_set_capability(dev2, EV_REL, REL_Y);
+ if (priv->flags & ALPS_DUALPOINT_WITH_PRESSURE) {
+ input_set_capability(dev2, EV_ABS, ABS_PRESSURE);
+ input_set_abs_params(dev2, ABS_PRESSURE, 0, 127, 0, 0);
+ }
input_set_capability(dev2, EV_KEY, BTN_LEFT);
input_set_capability(dev2, EV_KEY, BTN_RIGHT);
input_set_capability(dev2, EV_KEY, BTN_MIDDLE);