HID: core: add two new usages for digitizer

On Feb 17, 2014, two new usages are approved to HID usage Table 18 -
Digitizer Page:

5A	Secondary Barrel Switch		MC	16.4
5B	Transducer Serial Number	SV	16.3.1

This patch adds relevant definitions to hid/input. It also removes
outdated comments in hid.h.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

3 files changed, 9 insertions, 5 deletions

diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index c2537df10f47..84c3cb15ccdd 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -165,6 +165,8 @@ static const struct hid_usage_entry hid_usage_table[] = {
     {0, 0x53, "DeviceIndex"},
     {0, 0x54, "ContactCount"},
     {0, 0x55, "ContactMaximumNumber"},
+    {0, 0x5A, "SecondaryBarrelSwitch"},
+    {0, 0x5B, "TransducerSerialNumber"},
   { 15, 0, "PhysicalInterfaceDevice" },
     {0, 0x00, "Undefined"},
     {0, 0x01, "Physical_Interface_Device"},
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 9f2076acffb1..2619f7f4517a 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -684,9 +684,14 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                         break;
 
                 case 0x46: /* TabletPick */
+                case 0x5a: /* SecondaryBarrelSwitch */
                         map_key_clear(BTN_STYLUS2);
                         break;
 
+                case 0x5b: /* TransducerSerialNumber */
+                        set_bit(MSC_SERIAL, input->mscbit);
+                        break;
+
                 default:  goto unknown;
                 }
                 break;
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 720e3a10608c..a468ec8cc4fe 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -233,11 +233,6 @@ struct hid_item {
 #define HID_DG_BARRELSWITCH     0x000d0044
 #define HID_DG_ERASER           0x000d0045
 #define HID_DG_TABLETPICK       0x000d0046
-/*
- * as of May 20, 2009 the usages below are not yet in the official USB spec
- * but are being pushed by Microsft as described in their paper "Digitizer
- * Drivers for Windows Touch and Pen-Based Computers"
- */
 #define HID_DG_CONFIDENCE       0x000d0047
 #define HID_DG_WIDTH            0x000d0048
 #define HID_DG_HEIGHT           0x000d0049
@@ -246,6 +241,8 @@ struct hid_item {
 #define HID_DG_DEVICEINDEX      0x000d0053
 #define HID_DG_CONTACTCOUNT     0x000d0054
 #define HID_DG_CONTACTMAX       0x000d0055
+#define HID_DG_BARRELSWITCH2    0x000d005a
+#define HID_DG_TOOLSERIALNUMBER 0x000d005b
 
 /*
  * HID report types --- Ouch! HID spec says 1 2 3!