diff options
Diffstat (limited to 'drivers/hid/hid-cherry.c')
-rw-r--r-- | drivers/hid/hid-cherry.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/hid/hid-cherry.c b/drivers/hid/hid-cherry.c new file mode 100644 index 000000000000..b833b9769aba --- /dev/null +++ b/drivers/hid/hid-cherry.c | |||
@@ -0,0 +1,87 @@ | |||
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 | */ | ||
29 | static void ch_report_fixup(struct hid_device *hdev, __u8 *rdesc, | ||
30 | unsigned int rsize) | ||
31 | { | ||
32 | if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { | ||
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 | } | ||
38 | } | ||
39 | |||
40 | #define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ | ||
41 | EV_KEY, (c)) | ||
42 | static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, | ||
43 | struct hid_field *field, struct hid_usage *usage, | ||
44 | unsigned long **bit, int *max) | ||
45 | { | ||
46 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) | ||
47 | return 0; | ||
48 | |||
49 | switch (usage->hid & HID_USAGE) { | ||
50 | case 0x301: ch_map_key_clear(KEY_PROG1); break; | ||
51 | case 0x302: ch_map_key_clear(KEY_PROG2); break; | ||
52 | case 0x303: ch_map_key_clear(KEY_PROG3); break; | ||
53 | default: | ||
54 | return 0; | ||
55 | } | ||
56 | |||
57 | return 1; | ||
58 | } | ||
59 | |||
60 | static const struct hid_device_id ch_devices[] = { | ||
61 | { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, | ||
62 | { } | ||
63 | }; | ||
64 | MODULE_DEVICE_TABLE(hid, ch_devices); | ||
65 | |||
66 | static struct hid_driver ch_driver = { | ||
67 | .name = "cherry", | ||
68 | .id_table = ch_devices, | ||
69 | .report_fixup = ch_report_fixup, | ||
70 | .input_mapping = ch_input_mapping, | ||
71 | }; | ||
72 | |||
73 | static int ch_init(void) | ||
74 | { | ||
75 | return hid_register_driver(&ch_driver); | ||
76 | } | ||
77 | |||
78 | static void ch_exit(void) | ||
79 | { | ||
80 | hid_unregister_driver(&ch_driver); | ||
81 | } | ||
82 | |||
83 | module_init(ch_init); | ||
84 | module_exit(ch_exit); | ||
85 | MODULE_LICENSE("GPL"); | ||
86 | |||
87 | HID_COMPAT_LOAD_DRIVER(cherry); | ||