drivers/hid/hid-sigmamicro.c

   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
  15 static 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
 102 static __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
 113 static 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 };
 118 MODULE_DEVICE_TABLE(hid, sm_devices);
 119
 120 static struct hid_driver sm_driver = {
 121         .name = "sigmamicro",
 122         .id_table = sm_devices,
 123         .report_fixup = sm_report_fixup,
 124 };
 125 module_hid_driver(sm_driver);
 126
 127 MODULE_AUTHOR("Kinglong Mee <kinglongmee@gmail.com>");
 128 MODULE_AUTHOR("Desmond Lim <peckishrine@gmail.com>");
 129 MODULE_DESCRIPTION("SiGma Micro HID driver");
 130 MODULE_LICENSE("GPL");