Commit a230cd52 authored by pgzh's avatar pgzh Committed by Jiri Kosina
Browse files

HID: lenovo: Add support for IBM/Lenovo Scrollpoint mice 



The IBM/Lenovo Scrollpoint mice feature a trackpoint-like stick instead of a
scrolling wheel capable of 2-D (vertical+horizontal) scrolling.  hid-generic
does only expose 1-D (vertical) scrolling functionality for these mice.  This
patch adds support for horizontal scrolling for the IBM/Lenovo Scrollpoint mice
to hid-lenovo.

[jkosina@suse.cz: remove change versioning from git changelog]
Signed-off-by: default avatarPeter Ganzhorn <peter.ganzhorn@gmail.com>
Reviewed-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: default avatarPeter De Wachter <pdewacht@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent b658912c

drivers/hid/Kconfig

+4 −3
Original line number Diff line number Diff line
@@ -462,10 +462,11 @@ config HID_LENOVO 
	select NEW_LEDS

	select LEDS_CLASS

	---help---

	Support for Lenovo devices that are not fully compliant with HID standard.

	Support for IBM/Lenovo devices that are not fully compliant with HID standard.



	Say Y if you want support for the non-compliant features of the Lenovo

	Thinkpad standalone keyboards, e.g:

	Say Y if you want support for horizontal scrolling of the IBM/Lenovo

	Scrollpoint mice or the non-compliant features of the Lenovo Thinkpad

	standalone keyboards, e.g:

	- ThinkPad USB Keyboard with TrackPoint (supports extra LEDs and trackpoint

	  configuration)

	- ThinkPad Compact Bluetooth Keyboard with TrackPoint (supports Fn keys)

drivers/hid/hid-ids.h

+8 −0
Original line number Diff line number Diff line
@@ -552,6 +552,13 @@ 
#define USB_VENDOR_ID_HUION		0x256c

#define USB_DEVICE_ID_HUION_TABLET	0x006e



#define USB_VENDOR_ID_IBM					0x04b3

#define USB_DEVICE_ID_IBM_SCROLLPOINT_III			0x3100

#define USB_DEVICE_ID_IBM_SCROLLPOINT_PRO			0x3103

#define USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL			0x3105

#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL		0x3108

#define USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO	0x3109



#define USB_VENDOR_ID_IDEACOM		0x1cb6

#define USB_DEVICE_ID_IDEACOM_IDC6650	0x6650

#define USB_DEVICE_ID_IDEACOM_IDC6651	0x6651
@@ -684,6 +691,7 @@ 
#define USB_DEVICE_ID_LENOVO_TPKBD	0x6009

#define USB_DEVICE_ID_LENOVO_CUSBKBD	0x6047

#define USB_DEVICE_ID_LENOVO_CBTKBD	0x6048

#define USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL	0x6049

#define USB_DEVICE_ID_LENOVO_TPPRODOCK	0x6067

#define USB_DEVICE_ID_LENOVO_X1_COVER	0x6085

#define USB_DEVICE_ID_LENOVO_X1_TAB	0x60a3

drivers/hid/hid-lenovo.c

+36 −0
Original line number Diff line number Diff line
@@ -6,6 +6,17 @@ 
 *

 *  Copyright (c) 2012 Bernhard Seibold

 *  Copyright (c) 2014 Jamie Lentin <jm@lentin.co.uk>

 *

 * Linux IBM/Lenovo Scrollpoint mouse driver:

 * - IBM Scrollpoint III

 * - IBM Scrollpoint Pro

 * - IBM Scrollpoint Optical

 * - IBM Scrollpoint Optical 800dpi

 * - IBM Scrollpoint Optical 800dpi Pro

 * - Lenovo Scrollpoint Optical

 *

 *  Copyright (c) 2012 Peter De Wachter <pdewacht@gmail.com>

 *  Copyright (c) 2018 Peter Ganzhorn <peter.ganzhorn@gmail.com>

 */



/*
@@ -160,6 +171,17 @@ static int lenovo_input_mapping_cptkbd(struct hid_device *hdev, 
	return 0;

}



static int lenovo_input_mapping_scrollpoint(struct hid_device *hdev,

		struct hid_input *hi, struct hid_field *field,

		struct hid_usage *usage, unsigned long **bit, int *max)

{

	if (usage->hid == HID_GD_Z) {

		hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);

		return 1;

	}

	return 0;

}



static int lenovo_input_mapping(struct hid_device *hdev,

		struct hid_input *hi, struct hid_field *field,

		struct hid_usage *usage, unsigned long **bit, int *max)
@@ -172,6 +194,14 @@ static int lenovo_input_mapping(struct hid_device *hdev, 
	case USB_DEVICE_ID_LENOVO_CBTKBD:

		return lenovo_input_mapping_cptkbd(hdev, hi, field,

							usage, bit, max);

	case USB_DEVICE_ID_IBM_SCROLLPOINT_III:

	case USB_DEVICE_ID_IBM_SCROLLPOINT_PRO:

	case USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL:

	case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL:

	case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO:

	case USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL:

		return lenovo_input_mapping_scrollpoint(hdev, hi, field,

							usage, bit, max);

	default:

		return 0;

	}
@@ -883,6 +913,12 @@ static const struct hid_device_id lenovo_devices[] = { 
	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },

	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) },

	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) },

	{ }

};

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