HID: multitouch: add support for GeneralTouch multi-touchscreen

Fix the touch-up no response problem on GeneralTouch twofingers touchscreen and
modify the driver for new GeneralTouch PWT touchscreen.

Signed-off-by: Xianhan Yu <aroundight77@gmail.com>
Reviewed-by Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

2 files changed, 18 insertions, 1 deletions

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 5f68149c2f7e..54e15c47b405 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -309,6 +309,7 @@
 
 #define USB_VENDOR_ID_GENERAL_TOUCH     0x0dfc
 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS 0x0003
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS 0x0100
 
 #define USB_VENDOR_ID_GLAB              0x06c2
 #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index e170112e2b84..9f3c5bf4dde3 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -115,6 +115,8 @@ struct mt_device {
 #define MT_CLS_EGALAX_SERIAL                    0x0104
 #define MT_CLS_TOPSEED                          0x0105
 #define MT_CLS_PANASONIC                        0x0106
+#define MT_CLS_GENERALTOUCH_TWOFINGERS          0x0107
+#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS      0x0108
 
 #define MT_DEFAULT_MAXCONTACT   10
 
@@ -215,6 +217,17 @@ static struct mt_class mt_classes[] = {
         { .name = MT_CLS_PANASONIC,
                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
                 .maxcontacts = 4 },
+        { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
+                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+                        MT_QUIRK_VALID_IS_INRANGE |
+                        MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+                .maxcontacts = 2
+        },
+        { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+                        MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+                .maxcontacts = 10
+        },
 
         { }
 };
@@ -929,9 +942,12 @@ static const struct hid_device_id mt_devices[] = {
                         USB_DEVICE_ID_ELO_TS2515) },
 
         /* GeneralTouch panel */
-        { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+        { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
                 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
                         USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
+        { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+                MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                        USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
 
         /* Gametel game controller */
         { .driver_data = MT_CLS_DEFAULT,