HID: multitouch: support PixArt optical touch screen

This patch modifies hid-multitouch driver for supporting PixArt optical touch
screen.  Because of the device does not have to set initial report, we apply
"HID_QUIRK_NO_INIT_REPORTS" quirk and add the device into hid_blacklist[]

Signed-off-by: Aaron Tian <aaron_tian@pixart.com.tw>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index de447d7fdc56..513329d9833f 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -93,6 +93,7 @@ struct mt_device {
 #define MT_CLS_DUAL_INRANGE_CONTACTID           0x0006
 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER       0x0007
 #define MT_CLS_DUAL_NSMU_CONTACTID              0x0008
+#define MT_CLS_INRANGE_CONTACTNUMBER            0x0009
 
 /* vendor specific classes */
 #define MT_CLS_3M                               0x0101
@@ -159,6 +160,9 @@ struct mt_class mt_classes[] = {
                 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
                         MT_QUIRK_SLOT_IS_CONTACTID,
                 .maxcontacts = 2 },
+        { .name = MT_CLS_INRANGE_CONTACTNUMBER,
+                .quirks = MT_QUIRK_VALID_IS_INRANGE |
+                        MT_QUIRK_SLOT_IS_CONTACTNUMBER },
 
         /*
          * vendor specific classes
@@ -784,6 +788,17 @@ static const struct hid_device_id mt_devices[] = {
                 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
                         USB_DEVICE_ID_PENMOUNT_PCI) },
 
+        /* PixArt optical touch screen */
+        { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+                HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+                        USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
+        { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+                HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+                        USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
+        { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+                HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+                        USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
+
         /* PixCir-based panels */
         { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
                 HID_USB_DEVICE(USB_VENDOR_ID_HANVON,