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 __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