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-   -   HID: Implement horizontal wheel handling for A4 Tech X5-005D Bug: #201964 (http://www.linux-archive.org/ubuntu-kernel-team/86523-hid-implement-horizontal-wheel-handling-a4-tech-x5-005d-bug-201964-a.html)

Pavel Troller 10-29-2007 09:13 AM

HID: Implement horizontal wheel handling for A4 Tech X5-005D Bug: #201964
 
This mouse distinguishes horizontal wheel from vertical by a special "pseudo
event" GenericDesktop.00b8, with values of 0 for vertical and 8 for horizontal
wheel. Because this event is supplied by the parser too late, we need to delay
a wheel event, wait for this one and send either REL_WHEEL or REL_HWHEEL to
input depending on the event value.

Signed-off-by: Pavel Troller <patrol@sinus.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
drivers/hid/hid-input.c | 20 +++++++++++++++++---
drivers/hid/usbhid/hid-quirks.c | 2 ++
include/linux/hid.h | 3 +++
3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 69ae793..5fa0a0a 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -895,9 +895,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
map_key(BTN_1);
}

- if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
- (usage->type == EV_REL) && (usage->code == REL_WHEEL))
- set_bit(REL_HWHEEL, bit);
+ if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5 |
+ HID_QUIRK_2WHEEL_MOUSE_HACK_B8)) && (usage->type == EV_REL) &&
+ (usage->code == REL_WHEEL))
+ set_bit(REL_HWHEEL, bit);

if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
|| ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
@@ -995,6 +996,19 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
return;
}

+ if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_B8) &&
+ (usage->type == EV_REL) &&
+ (usage->code == REL_WHEEL)) {
+ hid->delayed_value = value;
+ return;
+ }
+
+ if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_B8) &&
+ (usage->hid == 0x000100b8)) {
+ input_event(input, EV_REL, value ? REL_HWHEEL : REL_WHEEL, hid->delayed_value);
+ return;
+ }
+
if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
input_event(input, usage->type, usage->code, -value);
return;
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 5183db5..a65f12e 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -19,6 +19,7 @@

#define USB_VENDOR_ID_A4TECH 0x09da
#define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
+#define USB_DEVICE_ID_A4TECH_X5_005D 0x000a

#define USB_VENDOR_ID_AASHIMA 0x06d6
#define USB_DEVICE_ID_AASHIMA_GAMEPAD 0x0025
@@ -380,6 +381,7 @@ static const struct hid_blacklist {
} hid_blacklist[] = {

{ USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 },
+ { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D, HID_QUIRK_2WHEEL_MOUSE_HACK_B8 },
{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_5 },

{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER, HID_QUIRK_BAD_RELATIVE_KEYS },
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 833f2af..991bbcd 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -281,6 +281,7 @@ struct hid_item {
#define HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL 0x00400000
#define HID_QUIRK_LOGITECH_EXPANDED_KEYMAP 0x00800000
#define HID_QUIRK_IGNORE_HIDINPUT 0x01000000
+#define HID_QUIRK_2WHEEL_MOUSE_HACK_B8 0x02000000

/*
* Separate quirks for runtime report descriptor fixup
@@ -456,6 +457,8 @@ struct hid_device { /* device report descriptor */

void *driver_data;

+ __s32 delayed_value; /* For A4 Tech mice hwheel quirk */
+
/* device-specific function pointers */
int (*hidinput_input_event) (struct input_dev *, unsigned int, unsigned int, int);
int (*hid_open) (struct hid_device *);
--
1.5.4.3


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