From 25914662b7e86f8cf8abdde0497e7fe8bdddf2ae Mon Sep 17 00:00:00 2001
From: Jiri Kosina <jkosina@suse.cz>
Date: Thu, 1 Mar 2007 09:54:44 +0100
Subject: HID: fix Logitech DiNovo Edge touchwheel and Logic3 /SpectraVideo
 middle button

Dongle shipped with Logitech DiNovo Edge (0x046d/0xc714) behaves in a weird
non-standard way - it contains multiple reports with the same usage, which
results in remapping of GenericDesktop.X and GenericDesktop.Y usages to
GenericDesktop.Z and GenericDesktop.RX respectively, thus rendering the
touchwheel unusable.

The commit 35068976916fdef82d6e69ef1f8c9a1c47732759 solved this
in a way that it didn't remap certain usages. This however breaks
(at least) middle button of Logic3 / SpectraVideo (0x1267/0x0210),
which in contrary requires the remapping.

To make both of the harware work, allow remapping of these usages again,
and introduce a quirk for Logitech DiNovo Edge "touchwheel" instead - we
disable remapping for key, abs and rel events only for this hardware.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index eeba665..c843402 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -71,7 +71,6 @@ static const struct {
 #define map_led(c)	do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
 
 #define map_abs_clear(c)	do { map_abs(c); clear_bit(c, bit); } while (0)
-#define map_rel_clear(c)	do { map_rel(c); clear_bit(c, bit); } while (0)
 #define map_key_clear(c)	do { map_key(c); clear_bit(c, bit); } while (0)
 
 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
@@ -296,7 +295,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 					}
 			}
 
-			map_key_clear(code);
+			map_key(code);
 			break;
 
 
@@ -347,9 +346,9 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 				case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
 				case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
 					if (field->flags & HID_MAIN_ITEM_RELATIVE)
-						map_rel_clear(usage->hid & 0xf);
+						map_rel(usage->hid & 0xf);
 					else
-						map_abs_clear(usage->hid & 0xf);
+						map_abs(usage->hid & 0xf);
 					break;
 
 				case HID_GD_HATSWITCH:
@@ -519,7 +518,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 				case 0x22f: map_key_clear(KEY_ZOOMRESET);	break;
 				case 0x233: map_key_clear(KEY_SCROLLUP);	break;
 				case 0x234: map_key_clear(KEY_SCROLLDOWN);	break;
-				case 0x238: map_rel_clear(REL_HWHEEL);		break;
+				case 0x238: map_rel(REL_HWHEEL);		break;
 				case 0x25f: map_key_clear(KEY_CANCEL);		break;
 				case 0x279: map_key_clear(KEY_REDO);		break;
 
@@ -667,6 +666,12 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 
 	set_bit(usage->type, input->evbit);
 
+	if (device->quirks & HID_QUIRK_DUPLICATE_USAGES &&
+			(usage->type == EV_KEY ||
+			 usage->type == EV_REL ||
+			 usage->type == EV_ABS))
+		clear_bit(usage->code, bit);
+
 	while (usage->code <= max && test_and_set_bit(usage->code, bit))
 		usage->code = find_next_zero_bit(bit, max + 1, usage->code);
 
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 5d52213..12ec8b4 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -756,6 +756,7 @@ void usbhid_init_reports(struct hid_device *hid)
 #define USB_VENDOR_ID_LOGITECH		0x046d
 #define USB_DEVICE_ID_LOGITECH_USB_RECEIVER	0xc101
 #define USB_DEVICE_ID_LOGITECH_USB_RECEIVER_2	0xc517
+#define USB_DEVICE_ID_DINOVO_EDGE	0xc714
 
 #define USB_VENDOR_ID_IMATION		0x0718
 #define USB_DEVICE_ID_DISC_STAKKA	0xd000
@@ -776,6 +777,8 @@ static const struct hid_blacklist {
 	unsigned quirks;
 } hid_blacklist[] = {
 
+	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE, HID_QUIRK_DUPLICATE_USAGES },
+
 	{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE },
 	{ USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE },
diff --git a/include/linux/hid.h b/include/linux/hid.h
index b08ad8a..8c97d4d 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -268,6 +268,7 @@ struct hid_item {
 #define HID_QUIRK_IGNORE_MOUSE			0x00040000
 #define HID_QUIRK_SONY_PS3_CONTROLLER		0x00080000
 #define HID_QUIRK_LOGITECH_S510_DESCRIPTOR	0x00100000
+#define HID_QUIRK_DUPLICATE_USAGES		0x00200000
 
 /*
  * This is the global environment of the parser. This information is
-- 
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