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authorJason Gerecke <killertofu@gmail.com>2017-02-10 16:14:07 -0800
committerJiri Kosina <jkosina@suse.cz>2017-02-14 15:01:29 +0100
commita48324de6d4d41dd3974e18ee8cedac4c0dd503a (patch)
tree6feb94fdcab9434e8d8160afdb0a7e4875bd8e72 /drivers/hid
parente7deb1570a527d3c74be4e21a72b1b459605c501 (diff)
downloadlinux-next-a48324de6d4d41dd3974e18ee8cedac4c0dd503a.tar.gz
HID: wacom: Bluetooth IRQ for Intuos Pro should handle prox/range
The prox/range bits included in the Bluetooth reports from the Intuos Pro were being ignored, leading to two issues. Firstly, the pen would never announce a BTN_TOOL_PEN event with value 0, leaving userspace to believe the pen was always active. Secondly, the driver would continue to send events for data while the packet's "prox" bit was clear. This can lead to sudden incorrect pointer jumps if the pen is slowly moved away from the tablet surface. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Reviewed-by: Ping Cheng <ping.cheng@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/wacom_wac.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index d51daf581488..1f3bdd16e159 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1211,29 +1211,34 @@ static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
for (i = 0; i < pen_frames; i++) {
unsigned char *frame = &data[i*pen_frame_len + 1];
+ bool valid = frame[0] & 0x80;
+ bool prox = frame[0] & 0x40;
+ bool range = frame[0] & 0x20;
- if (!(frame[0] & 0x80))
+ if (!valid)
continue;
- input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
- input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
+ if (range) {
+ input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
+ input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
+ input_report_abs(pen_input, ABS_TILT_X, frame[7]);
+ input_report_abs(pen_input, ABS_TILT_Y, frame[8]);
+ input_report_abs(pen_input, ABS_Z, get_unaligned_le16(&frame[9]));
+ input_report_abs(pen_input, ABS_WHEEL, get_unaligned_le16(&frame[11]));
+ }
input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
- input_report_abs(pen_input, ABS_TILT_X, frame[7]);
- input_report_abs(pen_input, ABS_TILT_Y, frame[8]);
- input_report_abs(pen_input, ABS_Z, get_unaligned_le16(&frame[9]));
- input_report_abs(pen_input, ABS_WHEEL, get_unaligned_le16(&frame[11]));
- input_report_abs(pen_input, ABS_DISTANCE, frame[13]);
+ input_report_abs(pen_input, ABS_DISTANCE, range ? frame[13] : wacom->features.distance_max);
input_report_key(pen_input, BTN_TOUCH, frame[0] & 0x01);
input_report_key(pen_input, BTN_STYLUS, frame[0] & 0x02);
input_report_key(pen_input, BTN_STYLUS2, frame[0] & 0x04);
- input_report_key(pen_input, wacom->tool[0], 1);
+ input_report_key(pen_input, wacom->tool[0], prox);
input_event(pen_input, EV_MSC, MSC_SERIAL, wacom->serial[0]);
input_report_abs(pen_input, ABS_MISC,
wacom_intuos_id_mangle(wacom->id[0])); /* report tool id */
- wacom->shared->stylus_in_proximity = frame[0] & 0x40;
+ wacom->shared->stylus_in_proximity = prox;
input_sync(pen_input);
}