Commit | Line | Data |
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94011f93 RR |
1 | /* |
2 | * HID driver for some ntrig "special" devices | |
3 | * | |
4 | * Copyright (c) 1999 Andreas Gal | |
5 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> | |
6 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
7 | * Copyright (c) 2006-2007 Jiri Kosina | |
8 | * Copyright (c) 2007 Paul Walmsley | |
9 | * Copyright (c) 2008 Jiri Slaby | |
10 | * Copyright (c) 2008 Rafi Rubin | |
11 | * | |
12 | */ | |
13 | ||
14 | /* | |
15 | * This program is free software; you can redistribute it and/or modify it | |
16 | * under the terms of the GNU General Public License as published by the Free | |
17 | * Software Foundation; either version 2 of the License, or (at your option) | |
18 | * any later version. | |
19 | */ | |
20 | ||
21 | #include <linux/device.h> | |
22 | #include <linux/hid.h> | |
23 | #include <linux/module.h> | |
24 | ||
25 | #include "hid-ids.h" | |
26 | ||
27 | #define NTRIG_DUPLICATE_USAGES 0x001 | |
28 | ||
29 | #define nt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ | |
30 | EV_KEY, (c)) | |
31 | ||
32 | static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
33 | struct hid_field *field, struct hid_usage *usage, | |
34 | unsigned long **bit, int *max) | |
35 | { | |
36 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_DIGITIZER && | |
37 | (usage->hid & 0xff) == 0x47) { | |
38 | nt_map_key_clear(BTN_TOOL_DOUBLETAP); | |
39 | return 1; | |
40 | } | |
41 | return 0; | |
42 | } | |
43 | ||
44 | static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi, | |
45 | struct hid_field *field, struct hid_usage *usage, | |
46 | unsigned long **bit, int *max) | |
47 | { | |
48 | if (usage->type == EV_KEY || usage->type == EV_REL | |
49 | || usage->type == EV_ABS) | |
50 | clear_bit(usage->code, *bit); | |
51 | ||
52 | return 0; | |
53 | } | |
54 | static const struct hid_device_id ntrig_devices[] = { | |
55 | { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN), | |
56 | .driver_data = NTRIG_DUPLICATE_USAGES }, | |
57 | { } | |
58 | }; | |
59 | MODULE_DEVICE_TABLE(hid, ntrig_devices); | |
60 | ||
61 | static struct hid_driver ntrig_driver = { | |
62 | .name = "ntrig", | |
63 | .id_table = ntrig_devices, | |
64 | .input_mapping = ntrig_input_mapping, | |
65 | .input_mapped = ntrig_input_mapped, | |
66 | }; | |
67 | ||
68 | static int ntrig_init(void) | |
69 | { | |
70 | return hid_register_driver(&ntrig_driver); | |
71 | } | |
72 | ||
73 | static void ntrig_exit(void) | |
74 | { | |
75 | hid_unregister_driver(&ntrig_driver); | |
76 | } | |
77 | ||
78 | module_init(ntrig_init); | |
79 | module_exit(ntrig_exit); | |
80 | MODULE_LICENSE("GPL"); | |
81 | ||
82 | HID_COMPAT_LOAD_DRIVER(ntrig); |