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authorpgzh <peter.ganzhorn@gmail.com>2018-04-12 19:36:47 +0200
committerJiri Kosina <jkosina@suse.cz>2018-04-25 10:48:35 +0200
commita230cd52b8a2be39cd6e9a13b3e62af57f21372a (patch)
tree3e66e5f8bf1ac553eaf807021b09bc5a059500eb /drivers/hid/hid-lenovo.c
parentb658912cb023cd6f8e46963d29779903d3c10538 (diff)
downloadlinux-a230cd52b8a2be39cd6e9a13b3e62af57f21372a.tar.bz2
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: Peter Ganzhorn <peter.ganzhorn@gmail.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Peter De Wachter <pdewacht@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-lenovo.c')
-rw-r--r--drivers/hid/hid-lenovo.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c
index 1ac4ff4d57a6..643b6eb54442 100644
--- a/drivers/hid/hid-lenovo.c
+++ b/drivers/hid/hid-lenovo.c
@@ -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) },
{ }
};