diff options
| author | Ping Cheng <pinglinux@gmail.com> | 2015-01-28 09:42:59 -0800 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2015-01-29 14:05:04 +0100 |
| commit | 9b61aa864ab6c2e12e463559eb83cf83cbd06889 (patch) | |
| tree | 1637077aa9338b4ad3962f33bfc3429f21a86e8d /drivers/hid | |
| parent | 33e5df0e0e32027866e9fb00451952998fc957f2 (diff) | |
| download | linux-9b61aa864ab6c2e12e463559eb83cf83cbd06889.tar.bz2 | |
HID: wacom: make sure touch arbitration is applied consistently
stylus_in_proximity is used to make sure no touch event is sent while pen is in
proximity. touch_down is used to make sure a touch up event is sent when pen
comes into proximity while touch is down.
Two touch routines didn't store touch_down. One touch routine forgot to check
stylus_in_proximity before sending touch events. This patch fixes those issues.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/wacom_wac.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index f8861494f4e3..6d490f602cfd 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -1042,7 +1042,7 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom) for (i = 0; i < contacts_to_send; i++) { int offset = (WACOM_BYTES_PER_24HDT_PACKET * i) + 1; - bool touch = data[offset] & 0x1 && !wacom->shared->stylus_in_proximity; + bool touch = (data[offset] & 0x1) && !wacom->shared->stylus_in_proximity; int slot = input_mt_get_slot_by_key(input, data[offset + 1]); if (slot < 0) @@ -1072,6 +1072,7 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom) if (wacom->num_contacts_left <= 0) wacom->num_contacts_left = 0; + wacom->shared->touch_down = (wacom->num_contacts_left > 0); return 1; } @@ -1100,7 +1101,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom) for (i = 0; i < contacts_to_send; i++) { int offset = (WACOM_BYTES_PER_MT_PACKET + x_offset) * i + 3; - bool touch = data[offset] & 0x1; + bool touch = (data[offset] & 0x1) && !wacom->shared->stylus_in_proximity; int id = get_unaligned_le16(&data[offset + 1]); int slot = input_mt_get_slot_by_key(input, id); @@ -1122,6 +1123,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom) if (wacom->num_contacts_left < 0) wacom->num_contacts_left = 0; + wacom->shared->touch_down = (wacom->num_contacts_left > 0); return 1; } |