1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * HID driver for SiGma Micro-based keyboards
4 *
5 * Copyright (c) 2016 Kinglong Mee
6 * Copyright (c) 2021 Desmond Lim
7 */
8
9#include <linux/device.h>
10#include <linux/hid.h>
11#include <linux/module.h>
12
13#include "hid-ids.h"
14
15static const __u8 sm_0059_rdesc[] = {
16 0x05, 0x0c, /* Usage Page (Consumer Devices) 0 */
17 0x09, 0x01, /* Usage (Consumer Control) 2 */
18 0xa1, 0x01, /* Collection (Application) 4 */
19 0x85, 0x01, /* Report ID (1) 6 */
20 0x19, 0x00, /* Usage Minimum (0) 8 */
21 0x2a, 0x3c, 0x02, /* Usage Maximum (572) 10 */
22 0x15, 0x00, /* Logical Minimum (0) 13 */
23 0x26, 0x3c, 0x02, /* Logical Maximum (572) 15 */
24 0x95, 0x01, /* Report Count (1) 18 */
25 0x75, 0x10, /* Report Size (16) 20 */
26 0x81, 0x00, /* Input (Data,Arr,Abs) 22 */
27 0xc0, /* End Collection 24 */
28 0x05, 0x01, /* Usage Page (Generic Desktop) 25 */
29 0x09, 0x80, /* Usage (System Control) 27 */
30 0xa1, 0x01, /* Collection (Application) 29 */
31 0x85, 0x02, /* Report ID (2) 31 */
32 0x19, 0x81, /* Usage Minimum (129) 33 */
33 0x29, 0x83, /* Usage Maximum (131) 35 */
34 0x25, 0x01, /* Logical Maximum (1) 37 */
35 0x75, 0x01, /* Report Size (1) 39 */
36 0x95, 0x03, /* Report Count (3) 41 */
37 0x81, 0x02, /* Input (Data,Var,Abs) 43 */
38 0x95, 0x05, /* Report Count (5) 45 */
39 0x81, 0x01, /* Input (Cnst,Arr,Abs) 47 */
40 0xc0, /* End Collection 49 */
41 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) 50 */
42 0x09, 0x01, /* Usage (Vendor Usage 1) 53 */
43 0xa1, 0x01, /* Collection (Application) 55 */
44 0x85, 0x03, /* Report ID (3) 57 */
45 0x1a, 0xf1, 0x00, /* Usage Minimum (241) 59 */
46 0x2a, 0xf8, 0x00, /* Usage Maximum (248) 62 */
47 0x15, 0x00, /* Logical Minimum (0) 65 */
48 0x25, 0x01, /* Logical Maximum (1) 67 */
49 0x75, 0x01, /* Report Size (1) 69 */
50 0x95, 0x08, /* Report Count (8) 71 */
51 0x81, 0x02, /* Input (Data,Var,Abs) 73 */
52 0xc0, /* End Collection 75 */
53 0x05, 0x01, /* Usage Page (Generic Desktop) 76 */
54 0x09, 0x06, /* Usage (Keyboard) 78 */
55 0xa1, 0x01, /* Collection (Application) 80 */
56 0x85, 0x04, /* Report ID (4) 82 */
57 0x05, 0x07, /* Usage Page (Keyboard) 84 */
58 0x19, 0xe0, /* Usage Minimum (224) 86 */
59 0x29, 0xe7, /* Usage Maximum (231) 88 */
60 0x15, 0x00, /* Logical Minimum (0) 90 */
61 0x25, 0x01, /* Logical Maximum (1) 92 */
62 0x75, 0x01, /* Report Size (1) 94 */
63 0x95, 0x08, /* Report Count (8) 96 */
64 0x81, 0x00, /* Input (Data,Arr,Abs) 98 */
65 0x95, 0x30, /* Report Count (48) 100 */
66 0x75, 0x01, /* Report Size (1) 102 */
67 0x15, 0x00, /* Logical Minimum (0) 104 */
68 0x25, 0x01, /* Logical Maximum (1) 106 */
69 0x05, 0x07, /* Usage Page (Keyboard) 108 */
70 0x19, 0x00, /* Usage Minimum (0) 110 */
71 0x29, 0x2f, /* Usage Maximum (47) 112 */
72 0x81, 0x02, /* Input (Data,Var,Abs) 114 */
73 0xc0, /* End Collection 116 */
74 0x05, 0x01, /* Usage Page (Generic Desktop) 117 */
75 0x09, 0x06, /* Usage (Keyboard) 119 */
76 0xa1, 0x01, /* Collection (Application) 121 */
77 0x85, 0x05, /* Report ID (5) 123 */
78 0x95, 0x38, /* Report Count (56) 125 */
79 0x75, 0x01, /* Report Size (1) 127 */
80 0x15, 0x00, /* Logical Minimum (0) 129 */
81 0x25, 0x01, /* Logical Maximum (1) 131 */
82 0x05, 0x07, /* Usage Page (Keyboard) 133 */
83 0x19, 0x30, /* Usage Minimum (48) 135 */
84 0x29, 0x67, /* Usage Maximum (103) 137 */
85 0x81, 0x02, /* Input (Data,Var,Abs) 139 */
86 0xc0, /* End Collection 141 */
87 0x05, 0x01, /* Usage Page (Generic Desktop) 142 */
88 0x09, 0x06, /* Usage (Keyboard) 144 */
89 0xa1, 0x01, /* Collection (Application) 146 */
90 0x85, 0x06, /* Report ID (6) 148 */
91 0x95, 0x38, /* Report Count (56) 150 */
92 0x75, 0x01, /* Report Size (1) 152 */
93 0x15, 0x00, /* Logical Minimum (0) 154 */
94 0x25, 0x01, /* Logical Maximum (1) 156 */
95 0x05, 0x07, /* Usage Page (Keyboard) 158 */
96 0x19, 0x68, /* Usage Minimum (104) 160 */
97 0x29, 0x9f, /* Usage Maximum (159) 162 */
98 0x81, 0x02, /* Input (Data,Var,Abs) 164 */
99 0xc0, /* End Collection 166 */
100};
101
102static const __u8 *sm_report_fixup(struct hid_device *hdev, __u8 *rdesc,
103 unsigned int *rsize)
104{
105 if (*rsize == sizeof(sm_0059_rdesc) &&
106 !memcmp(p: sm_0059_rdesc, q: rdesc, size: *rsize)) {
107 hid_info(hdev, "Fixing up SiGma Micro report descriptor\n");
108 rdesc[99] = 0x02;
109 }
110 return rdesc;
111}
112
113static const struct hid_device_id sm_devices[] = {
114 { HID_USB_DEVICE(USB_VENDOR_ID_SIGMA_MICRO,
115 USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD2) },
116 { }
117};
118MODULE_DEVICE_TABLE(hid, sm_devices);
119
120static struct hid_driver sm_driver = {
121 .name = "sigmamicro",
122 .id_table = sm_devices,
123 .report_fixup = sm_report_fixup,
124};
125module_hid_driver(sm_driver);
126
127MODULE_AUTHOR("Kinglong Mee <kinglongmee@gmail.com>");
128MODULE_AUTHOR("Desmond Lim <peckishrine@gmail.com>");
129MODULE_DESCRIPTION("SiGma Micro HID driver");
130MODULE_LICENSE("GPL");
131

source code of linux/drivers/hid/hid-sigmamicro.c