From 7ad8a1067dfc3bf74ad2daef013ea4f3df1841a7 Mon Sep 17 00:00:00 2001 From: Ben Gamari Date: Tue, 4 Oct 2016 11:41:58 -0700 Subject: [PATCH] Input: ALPS - allow touchsticks to report pressure The SS5 hardware can report this. Tested-by: Michal Hocko Signed-off-by: Ben Gamari Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/alps.c | 7 +++++++ 1 file changed, 7 insertions(+) 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); -- 2.20.1