Subject: Re: kern/23965: Patch to make Wacom Graphire3 behave as a standard tablet
To: None <gnats-bugs@gnats.NetBSD.org>
From: Dave Huang <khym@azeotrope.org>
List: netbsd-bugs
Date: 01/03/2004 19:04:00
Well that'll teach me to make cosmetic changes without actually
testing :) There was a typo in that patch... change "GAPHIRE" to
"GRAPHIRE" in uhidev.c.

Here's the corrected patch:

diff -ur /usr/src/sys/dev/usb/ugraphire_rdesc.h src/sys/dev/usb/ugraphire_rdesc.h
--- /usr/src/sys/dev/usb/ugraphire_rdesc.h	2000-12-28 19:47:49.000000000 -0600
+++ src/sys/dev/usb/ugraphire_rdesc.h	2004-01-03 03:45:55.000000000 -0600
@@ -89,3 +89,87 @@
     0xb1, 0x02,                    /*    FEATURE (Data,Var,Abs)		*/
     0xc0,                          /*  END_COLLECTION			*/
 };
+
+static uByte uhid_graphire3_4x5_report_descr[] = {
+    0x05, 0x01,                    /* USAGE_PAGE (Generic Desktop)	*/
+    0x09, 0x02,                    /* USAGE (Mouse)			*/
+    0xa1, 0x01,                    /* COLLECTION (Application)		*/
+    0x85, 0x01,                    /*   REPORT_ID (1)			*/
+    0x09, 0x01,                    /*   USAGE (Pointer)			*/
+    0xa1, 0x00,                    /*   COLLECTION (Physical)		*/
+    0x05, 0x09,                    /*     USAGE_PAGE (Button)		*/
+    0x19, 0x01,                    /*     USAGE_MINIMUM (Button 1)	*/
+    0x29, 0x03,                    /*     USAGE_MAXIMUM (Button 3)	*/
+    0x15, 0x00,                    /*     LOGICAL_MINIMUM (0)		*/
+    0x25, 0x01,                    /*     LOGICAL_MAXIMUM (1)		*/
+    0x95, 0x03,                    /*     REPORT_COUNT (3)		*/
+    0x75, 0x01,                    /*     REPORT_SIZE (1)		*/
+    0x81, 0x02,                    /*     INPUT (Data,Var,Abs)		*/
+    0x95, 0x01,                    /*     REPORT_COUNT (1)		*/
+    0x75, 0x05,                    /*     REPORT_SIZE (5)		*/
+    0x81, 0x01,                    /*     INPUT (Cnst,Ary,Abs)		*/
+    0x05, 0x01,                    /*     USAGE_PAGE (Generic Desktop)	*/
+    0x09, 0x30,                    /*     USAGE (X)			*/
+    0x09, 0x31,                    /*     USAGE (Y)			*/
+    0x09, 0x38,                    /*     USAGE (Wheel)			*/
+    0x15, 0x81,                    /*     LOGICAL_MINIMUM (-127)	*/
+    0x25, 0x7f,                    /*     LOGICAL_MAXIMUM (127)		*/
+    0x75, 0x08,                    /*     REPORT_SIZE (8)		*/
+    0x95, 0x03,                    /*     REPORT_COUNT (3)		*/
+    0x81, 0x06,                    /*     INPUT (Data,Var,Rel)		*/
+    0xc0,                          /*   END_COLLECTION			*/
+    0xc0,                          /* END_COLLECTION			*/
+    0x05, 0x0d,                    /* USAGE_PAGE (Digitizers)		*/
+    0x09, 0x01,                    /* USAGE (Pointer)			*/
+    0xa1, 0x01,                    /* COLLECTION (Applicaption)		*/
+    0x85, 0x02,                    /*   REPORT_ID (2)			*/
+    0x05, 0x0d,                    /*   USAGE_PAGE (Digitizers)		*/
+    0x09, 0x01,                    /*   USAGE (Digitizer)		*/
+    0xa1, 0x00,                    /*   COLLECTION (Physical)		*/
+    0x09, 0x33,                    /*     USAGE (Touch)			*/
+    0x09, 0x44,                    /*     USAGE (Barrel Switch)		*/
+    0x09, 0x44,                    /*     USAGE (Barrel Switch)		*/
+    0x15, 0x00,                    /*     LOGICAL_MINIMUM (0)		*/
+    0x25, 0x01,                    /*     LOGICAL_MAXIMUM (1)		*/
+    0x75, 0x01,                    /*     REPORT_SIZE (1)		*/
+    0x95, 0x03,                    /*     REPORT_COUNT (3)		*/
+    0x81, 0x02,                    /*     INPUT (Data,Var,Abs)		*/
+    0x75, 0x01,                    /*     REPORT_SIZE (1)		*/
+    0x95, 0x02,                    /*     REPORT_COUNT (2)		*/
+    0x81, 0x01,                    /*     INPUT (Cnst,Ary,Abs)		*/
+    0x09, 0x3c,                    /*     USAGE (Invert)		*/
+    0x09, 0x38,                    /*     USAGE (Transducer Index)	*/
+    0x09, 0x32,                    /*     USAGE (In Range)		*/
+    0x75, 0x01,                    /*     REPORT_SIZE (1)		*/
+    0x95, 0x03,                    /*     REPORT_COUNT (3)		*/
+    0x81, 0x02,                    /*     INPUT (Data,Var,Abs)		*/
+    0x05, 0x01,                    /*     USAGE_PAGE (Generic Desktop)	*/
+    0x09, 0x30,                    /*     USAGE (X)			*/
+    0x15, 0x00,                    /*     LOGICAL_MINIMUM (0)		*/
+    0x26, 0xde, 0x27,              /*     LOGICAL_MAXIMUM (10206)	*/
+    0x75, 0x10,                    /*     REPORT_SIZE (16)		*/
+    0x95, 0x01,                    /*     REPORT_COUNT (1)		*/
+    0x81, 0x02,                    /*     INPUT (Data,Var,Abs)		*/
+    0x09, 0x31,                    /*     USAGE (Y)			*/
+    0x26, 0xfe, 0x1c,              /*     LOGICAL_MAXIMUM (7422)	*/
+    0x75, 0x10,                    /*     REPORT_SIZE (16)		*/
+    0x95, 0x01,                    /*     REPORT_COUNT (1)		*/
+    0x81, 0x02,                    /*     INPUT (Data,Var,Abs)		*/
+    0x05, 0x0d,                    /*     USAGE_PAGE (Digitizers)	*/
+    0x09, 0x30,                    /*     USAGE (Tip Pressure)		*/
+    0x26, 0xff, 0x01,              /*     LOGICAL_MAXIMUM (511)		*/
+    0x75, 0x10,                    /*     REPORT_SIZE (16)		*/
+    0x95, 0x01,                    /*     REPORT_COUNT (1)		*/
+    0x81, 0x02,                    /*     INPUT (Data,Var,Abs)		*/
+    0xc0,                          /*   END_COLLECTION			*/
+    0x05, 0x0d,                    /*   USAGE_PAGE (Digitizers)		*/
+    0x09, 0x00,                    /*   USAGE (Undefined)		*/
+    0x85, 0x02,                    /*   REPORT_ID (2)			*/
+    0x95, 0x01,                    /*   REPORT_COUNT (1)		*/
+    0xb1, 0x02,                    /*   FEATURE (Data,Var,Abs)		*/
+    0x09, 0x00,                    /*   USAGE (Undefined)		*/
+    0x85, 0x03,                    /*   REPORT_ID (3)			*/
+    0x95, 0x01,                    /*   REPORT_COUNT (1)		*/
+    0xb1, 0x02,                    /*   FEATURE (Data,Var,Abs)		*/
+    0xc0                           /* END_COLLECTION			*/
+};
diff -ur /usr/src/sys/dev/usb/uhidev.c src/sys/dev/usb/uhidev.c
--- /usr/src/sys/dev/usb/uhidev.c	2003-10-26 01:57:46.000000000 -0500
+++ src/sys/dev/usb/uhidev.c	2004-01-03 18:56:25.000000000 -0600
@@ -109,7 +109,7 @@
 	struct uhidev *dev;
 	int size, nrepid, repid, repsz;
 	int repsizes[256];
-	void *desc;
+	void *desc, *descptr = NULL;
 	usbd_status err;
 	char devinfo[1024];
 
@@ -157,21 +157,45 @@
 	sc->sc_ep_addr = ed->bEndpointAddress;
 
 	/* XXX need to extend this */
-	if (uaa->vendor == USB_VENDOR_WACOM &&
-	    uaa->product == USB_PRODUCT_WACOM_GRAPHIRE /* &&
+	if (uaa->vendor == USB_VENDOR_WACOM /* &&
 	    uaa->revision == 0x???? */) { /* XXX should use revision */
+		char reportbuf[] = {2, 2, 2};
+
 		/* The report descriptor for the Wacom Graphire is broken. */
-		size = sizeof uhid_graphire_report_descr;
+		switch (uaa->product) {
+		case USB_PRODUCT_WACOM_GRAPHIRE:
+			size = sizeof uhid_graphire_report_descr;
+			descptr = uhid_graphire_report_descr;
+			break;
+
+		case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: /* The 6x8 too? */
+			/*
+			 * The Graphire3 needs 0x0202 to be written to
+			 * feature report ID 2 before it'll start
+			 * returning digitizer data.
+			 */
+			usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 2,
+			    &reportbuf, sizeof(reportbuf));
+
+			size = sizeof uhid_graphire3_4x5_report_descr;
+			descptr = uhid_graphire3_4x5_report_descr;
+			break;
+		}
+
+	}
+
+	if (descptr) {
 		desc = malloc(size, M_USBDEV, M_NOWAIT);
 		if (desc == NULL)
 			err = USBD_NOMEM;
 		else {
 			err = USBD_NORMAL_COMPLETION;
-			memcpy(desc, uhid_graphire_report_descr, size);
+			memcpy(desc, descptr, size);
 		}
 	} else {
 		desc = NULL;
-		err = usbd_read_report_desc(uaa->iface, &desc, &size, M_USBDEV);
+		err = usbd_read_report_desc(uaa->iface, &desc, &size,
+		    M_USBDEV);
 	}
 	if (err) {
 		printf("%s: no report descriptor\n", USBDEVNAME(sc->sc_dev));
diff -ur /usr/src/sys/dev/usb/usbdevs src/sys/dev/usb/usbdevs
--- /usr/src/sys/dev/usb/usbdevs	2004-01-01 06:52:04.000000000 -0600
+++ src/sys/dev/usb/usbdevs	2004-01-03 02:02:30.000000000 -0600
@@ -1532,6 +1532,7 @@
 /* Wacom products */
 product WACOM CT0405U		0x0000	CT-0405-U Tablet
 product WACOM GRAPHIRE		0x0010	Graphire
+product WACOM GRAPHIRE3_4X5	0x0013	Graphire3 4x5
 product WACOM INTUOSA5		0x0021	Intuos A5
  
 /* Xirlink products */