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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * HID driver for SiGma Micro-based keyboards4 *5 * Copyright (c) 2016 Kinglong Mee6 * Copyright (c) 2021 Desmond Lim7 */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(sm_0059_rdesc, rdesc, *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