Commit | Line | Data |
---|---|---|
af8cd70a WW |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * HID driver for Maltron L90 | |
4 | * | |
5 | * Copyright (c) 1999 Andreas Gal | |
6 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> | |
7 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
8 | * Copyright (c) 2008 Jiri Slaby | |
9 | * Copyright (c) 2012 David Dillow <dave@thedillows.org> | |
10 | * Copyright (c) 2006-2013 Jiri Kosina | |
11 | * Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com> | |
12 | * Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com> | |
13 | * Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com> | |
14 | * Copyright (c) 2016 Yuxuan Shui <yshuiv7@gmail.com> | |
15 | * Copyright (c) 2018 William Whistler <wtbw@wtbw.co.uk> | |
16 | */ | |
17 | ||
18 | #include <linux/device.h> | |
19 | #include <linux/hid.h> | |
20 | #include <linux/module.h> | |
21 | ||
22 | #include "hid-ids.h" | |
23 | ||
24 | /* The original buggy USB descriptor */ | |
25 | static u8 maltron_rdesc_o[] = { | |
26 | 0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */ | |
27 | 0x09, 0x80, /* Usage (Sys Control) */ | |
28 | 0xA1, 0x01, /* Collection (Application) */ | |
29 | 0x85, 0x02, /* Report ID (2) */ | |
30 | 0x75, 0x01, /* Report Size (1) */ | |
31 | 0x95, 0x01, /* Report Count (1) */ | |
32 | 0x15, 0x00, /* Logical Minimum (0) */ | |
33 | 0x25, 0x01, /* Logical Maximum (1) */ | |
34 | 0x09, 0x82, /* Usage (Sys Sleep) */ | |
35 | 0x81, 0x06, /* Input (Data,Var,Rel) */ | |
36 | 0x09, 0x82, /* Usage (Sys Sleep) */ | |
37 | 0x81, 0x06, /* Input (Data,Var,Rel) */ | |
38 | 0x09, 0x83, /* Usage (Sys Wake Up) */ | |
39 | 0x81, 0x06, /* Input (Data,Var,Rel) */ | |
40 | 0x75, 0x05, /* Report Size (5) */ | |
41 | 0x81, 0x01, /* Input (Const,Array,Abs) */ | |
42 | 0xC0, /* End Collection */ | |
43 | 0x05, 0x0C, /* Usage Page (Consumer) */ | |
44 | 0x09, 0x01, /* Usage (Consumer Control) */ | |
45 | 0xA1, 0x01, /* Collection (Application) */ | |
46 | 0x85, 0x03, /* Report ID (3) */ | |
47 | 0x95, 0x01, /* Report Count (1) */ | |
48 | 0x75, 0x10, /* Report Size (16) */ | |
49 | 0x19, 0x00, /* Usage Minimum (Unassigned) */ | |
50 | 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */ | |
51 | 0x81, 0x00, /* Input (Data,Array,Abs) */ | |
52 | 0xC0, /* End Collection */ | |
53 | 0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */ | |
54 | 0x09, 0x01, /* Usage (0x01) */ | |
55 | 0xA1, 0x01, /* Collection (Application) */ | |
56 | 0x85, 0x04, /* Report ID (4) */ | |
57 | 0x95, 0x01, /* Report Count (1) */ | |
58 | 0x75, 0x10, /* Report Size (16) */ | |
59 | 0x19, 0x00, /* Usage Minimum (0x00) */ | |
60 | 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */ | |
61 | 0x81, 0x00, /* Input (Data,Array,Abs) */ | |
62 | 0x75, 0x02, /* Report Size (2) */ | |
63 | 0x25, 0x02, /* Logical Maximum (2) */ | |
64 | 0x09, 0x90, /* Usage (0x90) */ | |
65 | 0xB1, 0x02, /* Feature (Data,Var,Abs) */ | |
66 | 0x75, 0x06, /* Report Size (6) */ | |
67 | 0xB1, 0x01, /* Feature (Const,Array,Abs) */ | |
68 | 0x75, 0x01, /* Report Size (1) */ | |
69 | 0x25, 0x01, /* Logical Maximum (1) */ | |
70 | 0x05, 0x08, /* Usage Page (LEDs) */ | |
71 | 0x09, 0x2A, /* Usage (On-Line) */ | |
72 | 0x91, 0x02, /* Output (Data,Var,Abs) */ | |
73 | 0x09, 0x4B, /* Usage (Generic Indicator) */ | |
74 | 0x91, 0x02, /* Output (Data,Var,Abs) */ | |
75 | 0x75, 0x06, /* Report Size (6) */ | |
76 | 0x95, 0x01, /* Report Count (1) */ | |
77 | 0x91, 0x01, /* Output (Const,Array,Abs) */ | |
78 | 0xC0 /* End Collection */ | |
79 | }; | |
80 | ||
81 | /* The patched descriptor, allowing media key events to be accepted as valid */ | |
82 | static u8 maltron_rdesc[] = { | |
83 | 0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */ | |
84 | 0x09, 0x80, /* Usage (Sys Control) */ | |
85 | 0xA1, 0x01, /* Collection (Application) */ | |
86 | 0x85, 0x02, /* Report ID (2) */ | |
87 | 0x75, 0x01, /* Report Size (1) */ | |
88 | 0x95, 0x01, /* Report Count (1) */ | |
89 | 0x15, 0x00, /* Logical Minimum (0) */ | |
90 | 0x25, 0x01, /* Logical Maximum (1) */ | |
91 | 0x09, 0x82, /* Usage (Sys Sleep) */ | |
92 | 0x81, 0x06, /* Input (Data,Var,Rel) */ | |
93 | 0x09, 0x82, /* Usage (Sys Sleep) */ | |
94 | 0x81, 0x06, /* Input (Data,Var,Rel) */ | |
95 | 0x09, 0x83, /* Usage (Sys Wake Up) */ | |
96 | 0x81, 0x06, /* Input (Data,Var,Rel) */ | |
97 | 0x75, 0x05, /* Report Size (5) */ | |
98 | 0x81, 0x01, /* Input (Const,Array,Abs) */ | |
99 | 0xC0, /* End Collection */ | |
100 | 0x05, 0x0C, /* Usage Page (Consumer) */ | |
101 | 0x09, 0x01, /* Usage (Consumer Control) */ | |
102 | 0xA1, 0x01, /* Collection (Application) */ | |
103 | 0x85, 0x03, /* Report ID (3) */ | |
104 | 0x15, 0x00, /* Logical Minimum (0) - changed */ | |
105 | 0x26, 0xFF, 0x7F, /* Logical Maximum (32767) - changed */ | |
106 | 0x95, 0x01, /* Report Count (1) */ | |
107 | 0x75, 0x10, /* Report Size (16) */ | |
108 | 0x19, 0x00, /* Usage Minimum (Unassigned) */ | |
109 | 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */ | |
110 | 0x81, 0x00, /* Input (Data,Array,Abs) */ | |
111 | 0xC0, /* End Collection */ | |
112 | 0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */ | |
113 | 0x09, 0x01, /* Usage (0x01) */ | |
114 | 0xA1, 0x01, /* Collection (Application) */ | |
115 | 0x85, 0x04, /* Report ID (4) */ | |
116 | 0x95, 0x01, /* Report Count (1) */ | |
117 | 0x75, 0x10, /* Report Size (16) */ | |
118 | 0x19, 0x00, /* Usage Minimum (0x00) */ | |
119 | 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */ | |
120 | 0x81, 0x00, /* Input (Data,Array,Abs) */ | |
121 | 0x75, 0x02, /* Report Size (2) */ | |
122 | 0x25, 0x02, /* Logical Maximum (2) */ | |
123 | 0x09, 0x90, /* Usage (0x90) */ | |
124 | 0xB1, 0x02, /* Feature (Data,Var,Abs) */ | |
125 | 0x75, 0x06, /* Report Size (6) */ | |
126 | 0xB1, 0x01, /* Feature (Const,Array,Abs) */ | |
127 | 0x75, 0x01, /* Report Size (1) */ | |
128 | 0x25, 0x01, /* Logical Maximum (1) */ | |
129 | 0x05, 0x08, /* Usage Page (LEDs) */ | |
130 | 0x09, 0x2A, /* Usage (On-Line) */ | |
131 | 0x91, 0x02, /* Output (Data,Var,Abs) */ | |
132 | 0x09, 0x4B, /* Usage (Generic Indicator) */ | |
133 | 0x91, 0x02, /* Output (Data,Var,Abs) */ | |
134 | 0x75, 0x06, /* Report Size (6) */ | |
135 | 0x95, 0x01, /* Report Count (1) */ | |
136 | 0x91, 0x01, /* Output (Const,Array,Abs) */ | |
137 | 0xC0 /* End Collection */ | |
138 | }; | |
139 | ||
140 | static __u8 *maltron_report_fixup(struct hid_device *hdev, __u8 *rdesc, | |
141 | unsigned int *rsize) | |
142 | { | |
143 | if (*rsize == sizeof(maltron_rdesc_o) && | |
144 | !memcmp(maltron_rdesc_o, rdesc, sizeof(maltron_rdesc_o))) { | |
145 | hid_info(hdev, "Replacing Maltron L90 keyboard report descriptor\n"); | |
146 | *rsize = sizeof(maltron_rdesc); | |
147 | return maltron_rdesc; | |
148 | } | |
149 | return rdesc; | |
150 | } | |
151 | ||
152 | static const struct hid_device_id maltron_devices[] = { | |
153 | { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_MALTRON_KB)}, | |
154 | { } | |
155 | }; | |
156 | MODULE_DEVICE_TABLE(hid, maltron_devices); | |
157 | ||
158 | static struct hid_driver maltron_driver = { | |
159 | .name = "maltron", | |
160 | .id_table = maltron_devices, | |
161 | .report_fixup = maltron_report_fixup | |
162 | }; | |
163 | module_hid_driver(maltron_driver); | |
164 | ||
165 | MODULE_LICENSE("GPL"); |