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1 | /* |
2 | * HID driver for some ezkey "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) 2008 Jiri Slaby |
9 | */ |
10 | |
11 | /* |
12 | * This program is free software; you can redistribute it and/or modify it |
13 | * under the terms of the GNU General Public License as published by the Free |
14 | * Software Foundation; either version 2 of the License, or (at your option) |
15 | * any later version. |
16 | */ |
17 | |
18 | #include <linux/device.h> |
19 | #include <linux/input.h> |
20 | #include <linux/hid.h> |
21 | #include <linux/module.h> |
22 | |
23 | #include "hid-ids.h" |
24 | |
25 | #define ez_map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c)) |
26 | #define ez_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c)) |
27 | |
28 | static int ez_input_mapping(struct hid_device *hdev, struct hid_input *hi, |
29 | struct hid_field *field, struct hid_usage *usage, |
30 | unsigned long **bit, int *max) |
31 | { |
32 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) |
33 | return 0; |
34 | |
35 | switch (usage->hid & HID_USAGE) { |
36 | case 0x230: ez_map_key(BTN_MOUSE); break; |
37 | case 0x231: ez_map_rel(REL_WHEEL); break; |
38 | /* |
39 | * this keyboard has a scrollwheel implemented in |
40 | * totally broken way. We map this usage temporarily |
41 | * to HWHEEL and handle it in the event quirk handler |
42 | */ |
43 | case 0x232: ez_map_rel(REL_HWHEEL); break; |
44 | default: |
45 | return 0; |
46 | } |
47 | return 1; |
48 | } |
49 | |
50 | static int ez_event(struct hid_device *hdev, struct hid_field *field, |
51 | struct hid_usage *usage, __s32 value) |
52 | { |
53 | if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput || |
54 | !usage->type) |
55 | return 0; |
56 | |
57 | /* handle the temporary quirky mapping to HWHEEL */ |
58 | if (usage->type == EV_REL && usage->code == REL_HWHEEL) { |
59 | struct input_dev *input = field->hidinput->input; |
60 | input_event(input, usage->type, REL_WHEEL, -value); |
61 | return 1; |
62 | } |
63 | |
64 | return 0; |
65 | } |
66 | |
67 | static const struct hid_device_id ez_devices[] = { |
68 | { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, |
69 | { } |
70 | }; |
71 | MODULE_DEVICE_TABLE(hid, ez_devices); |
72 | |
73 | static struct hid_driver ez_driver = { |
74 | .name = "ezkey", |
75 | .id_table = ez_devices, |
76 | .input_mapping = ez_input_mapping, |
77 | .event = ez_event, |
78 | }; |
79 | module_hid_driver(ez_driver); |
80 | |
81 | MODULE_LICENSE("GPL"); |
82 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
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v3.9