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Commit | Line | Data |
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3b239cd7 JS |
1 | /* |
2 | * HID driver for some cherry "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 | */ | |
11 | ||
12 | /* | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the Free | |
15 | * Software Foundation; either version 2 of the License, or (at your option) | |
16 | * any later version. | |
17 | */ | |
18 | ||
19 | #include <linux/device.h> | |
20 | #include <linux/hid.h> | |
21 | #include <linux/module.h> | |
22 | ||
23 | #include "hid-ids.h" | |
24 | ||
25 | /* | |
26 | * Cherry Cymotion keyboard have an invalid HID report descriptor, | |
27 | * that needs fixing before we can parse it. | |
28 | */ | |
73e4008d NK |
29 | static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
30 | unsigned int *rsize) | |
3b239cd7 | 31 | { |
73e4008d | 32 | if (*rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { |
3b239cd7 JS |
33 | dev_info(&hdev->dev, "fixing up Cherry Cymotion report " |
34 | "descriptor\n"); | |
35 | rdesc[11] = rdesc[16] = 0xff; | |
36 | rdesc[12] = rdesc[17] = 0x03; | |
37 | } | |
73e4008d | 38 | return rdesc; |
3b239cd7 JS |
39 | } |
40 | ||
41 | #define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ | |
42 | EV_KEY, (c)) | |
43 | static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
44 | struct hid_field *field, struct hid_usage *usage, | |
45 | unsigned long **bit, int *max) | |
46 | { | |
47 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) | |
48 | return 0; | |
49 | ||
50 | switch (usage->hid & HID_USAGE) { | |
51 | case 0x301: ch_map_key_clear(KEY_PROG1); break; | |
52 | case 0x302: ch_map_key_clear(KEY_PROG2); break; | |
53 | case 0x303: ch_map_key_clear(KEY_PROG3); break; | |
54 | default: | |
55 | return 0; | |
56 | } | |
57 | ||
58 | return 1; | |
59 | } | |
60 | ||
61 | static const struct hid_device_id ch_devices[] = { | |
62 | { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, | |
1ce31b25 | 63 | { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, |
3b239cd7 JS |
64 | { } |
65 | }; | |
66 | MODULE_DEVICE_TABLE(hid, ch_devices); | |
67 | ||
68 | static struct hid_driver ch_driver = { | |
69 | .name = "cherry", | |
70 | .id_table = ch_devices, | |
71 | .report_fixup = ch_report_fixup, | |
72 | .input_mapping = ch_input_mapping, | |
73 | }; | |
74 | ||
a24f423b | 75 | static int __init ch_init(void) |
3b239cd7 JS |
76 | { |
77 | return hid_register_driver(&ch_driver); | |
78 | } | |
79 | ||
a24f423b | 80 | static void __exit ch_exit(void) |
3b239cd7 JS |
81 | { |
82 | hid_unregister_driver(&ch_driver); | |
83 | } | |
84 | ||
85 | module_init(ch_init); | |
86 | module_exit(ch_exit); | |
87 | MODULE_LICENSE("GPL"); |