From 94011f93f2cd7410401e22390cf7a14fe5495a22 Mon Sep 17 00:00:00 2001 From: Rafi Rubin Date: Wed, 19 Nov 2008 15:54:46 +0100 Subject: HID: add n-trig digitizer support Added quirks for the N-Trig digitizer. Signed-off-by: Rafi Rubin Signed-off-by: Jiri Kosina --- drivers/hid/hid-ntrig.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 drivers/hid/hid-ntrig.c (limited to 'drivers/hid/hid-ntrig.c') diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c new file mode 100644 index 00000000000..db44fbd7bdf --- /dev/null +++ b/drivers/hid/hid-ntrig.c @@ -0,0 +1,82 @@ +/* + * HID driver for some ntrig "special" devices + * + * Copyright (c) 1999 Andreas Gal + * Copyright (c) 2000-2005 Vojtech Pavlik + * Copyright (c) 2005 Michael Haboustak for Concept2, Inc + * Copyright (c) 2006-2007 Jiri Kosina + * Copyright (c) 2007 Paul Walmsley + * Copyright (c) 2008 Jiri Slaby + * Copyright (c) 2008 Rafi Rubin + * + */ + +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include +#include +#include + +#include "hid-ids.h" + +#define NTRIG_DUPLICATE_USAGES 0x001 + +#define nt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ + EV_KEY, (c)) + +static int ntrig_input_mapping(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_USAGE_PAGE) == HID_UP_DIGITIZER && + (usage->hid & 0xff) == 0x47) { + nt_map_key_clear(BTN_TOOL_DOUBLETAP); + return 1; + } + return 0; +} + +static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi, + struct hid_field *field, struct hid_usage *usage, + unsigned long **bit, int *max) +{ + if (usage->type == EV_KEY || usage->type == EV_REL + || usage->type == EV_ABS) + clear_bit(usage->code, *bit); + + return 0; +} +static const struct hid_device_id ntrig_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN), + .driver_data = NTRIG_DUPLICATE_USAGES }, + { } +}; +MODULE_DEVICE_TABLE(hid, ntrig_devices); + +static struct hid_driver ntrig_driver = { + .name = "ntrig", + .id_table = ntrig_devices, + .input_mapping = ntrig_input_mapping, + .input_mapped = ntrig_input_mapped, +}; + +static int ntrig_init(void) +{ + return hid_register_driver(&ntrig_driver); +} + +static void ntrig_exit(void) +{ + hid_unregister_driver(&ntrig_driver); +} + +module_init(ntrig_init); +module_exit(ntrig_exit); +MODULE_LICENSE("GPL"); + +HID_COMPAT_LOAD_DRIVER(ntrig); -- cgit v1.2.3