From: Éric Piel Date: Fri, 6 Aug 2010 06:51:49 +0000 (-0700) Subject: Input: elantech - report position also with 3 fingers X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=22462d9fcf5b29184716aca486058943b2d6995f;p=linux-beck.git Input: elantech - report position also with 3 fingers The 6-byte protocol supports reporting the position when three fingers are pressed, exactly like when one finger is pressed. Report this. In addition, it is also distinguishes between 3 and 4 fingers pressed. Signed-off-by: Éric Piel Signed-off-by: Dmitry Torokhov --- diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index bd5b91da169e..48311204ba51 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -257,6 +257,14 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) input_report_key(dev, BTN_TOUCH, fingers != 0); switch (fingers) { + case 3: + /* + * Same as one finger, except report of more than 3 fingers: + * byte 3: n4 . w1 w0 . . . . + */ + if (packet[3] & 0x80) + fingers = 4; + /* pass through... */ case 1: /* * byte 1: . . . . . x10 x9 x8 @@ -309,6 +317,7 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) input_report_key(dev, BTN_TOOL_FINGER, fingers == 1); input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2); input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3); + input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4); input_report_key(dev, BTN_LEFT, packet[0] & 0x01); input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); @@ -466,6 +475,7 @@ static void elantech_set_input_params(struct psmouse *psmouse) break; case 2: + __set_bit(BTN_TOOL_QUADTAP, dev->keybit); input_set_abs_params(dev, ABS_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0); input_set_abs_params(dev, ABS_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0); input_set_abs_params(dev, ABS_HAT0X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0);