^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * HID driver for Maltron L90
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 1999 Andreas Gal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (c) 2008 Jiri Slaby
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (c) 2012 David Dillow <dave@thedillows.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Copyright (c) 2006-2013 Jiri Kosina
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Copyright (c) 2016 Yuxuan Shui <yshuiv7@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * Copyright (c) 2018 William Whistler <wtbw@wtbw.co.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "hid-ids.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /* The original buggy USB descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static u8 maltron_rdesc_o[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 0x09, 0x80, /* Usage (Sys Control) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 0xA1, 0x01, /* Collection (Application) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 0x85, 0x02, /* Report ID (2) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 0x75, 0x01, /* Report Size (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 0x15, 0x00, /* Logical Minimum (0) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 0x25, 0x01, /* Logical Maximum (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 0x09, 0x82, /* Usage (Sys Sleep) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 0x81, 0x06, /* Input (Data,Var,Rel) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 0x09, 0x82, /* Usage (Sys Sleep) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 0x81, 0x06, /* Input (Data,Var,Rel) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 0x09, 0x83, /* Usage (Sys Wake Up) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 0x81, 0x06, /* Input (Data,Var,Rel) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 0x75, 0x05, /* Report Size (5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 0x81, 0x01, /* Input (Const,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 0xC0, /* End Collection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 0x05, 0x0C, /* Usage Page (Consumer) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 0x09, 0x01, /* Usage (Consumer Control) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 0xA1, 0x01, /* Collection (Application) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 0x85, 0x03, /* Report ID (3) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 0x75, 0x10, /* Report Size (16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 0x19, 0x00, /* Usage Minimum (Unassigned) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 0x81, 0x00, /* Input (Data,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 0xC0, /* End Collection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 0x09, 0x01, /* Usage (0x01) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 0xA1, 0x01, /* Collection (Application) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 0x85, 0x04, /* Report ID (4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 0x75, 0x10, /* Report Size (16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 0x19, 0x00, /* Usage Minimum (0x00) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 0x81, 0x00, /* Input (Data,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 0x75, 0x02, /* Report Size (2) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 0x25, 0x02, /* Logical Maximum (2) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 0x09, 0x90, /* Usage (0x90) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 0xB1, 0x02, /* Feature (Data,Var,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 0x75, 0x06, /* Report Size (6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 0xB1, 0x01, /* Feature (Const,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 0x75, 0x01, /* Report Size (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 0x25, 0x01, /* Logical Maximum (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 0x05, 0x08, /* Usage Page (LEDs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 0x09, 0x2A, /* Usage (On-Line) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 0x91, 0x02, /* Output (Data,Var,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 0x09, 0x4B, /* Usage (Generic Indicator) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 0x91, 0x02, /* Output (Data,Var,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 0x75, 0x06, /* Report Size (6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 0x91, 0x01, /* Output (Const,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 0xC0 /* End Collection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /* The patched descriptor, allowing media key events to be accepted as valid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static u8 maltron_rdesc[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 0x09, 0x80, /* Usage (Sys Control) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 0xA1, 0x01, /* Collection (Application) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 0x85, 0x02, /* Report ID (2) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 0x75, 0x01, /* Report Size (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 0x15, 0x00, /* Logical Minimum (0) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 0x25, 0x01, /* Logical Maximum (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) 0x09, 0x82, /* Usage (Sys Sleep) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 0x81, 0x06, /* Input (Data,Var,Rel) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) 0x09, 0x82, /* Usage (Sys Sleep) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 0x81, 0x06, /* Input (Data,Var,Rel) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) 0x09, 0x83, /* Usage (Sys Wake Up) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) 0x81, 0x06, /* Input (Data,Var,Rel) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) 0x75, 0x05, /* Report Size (5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) 0x81, 0x01, /* Input (Const,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) 0xC0, /* End Collection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 0x05, 0x0C, /* Usage Page (Consumer) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 0x09, 0x01, /* Usage (Consumer Control) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 0xA1, 0x01, /* Collection (Application) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 0x85, 0x03, /* Report ID (3) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 0x15, 0x00, /* Logical Minimum (0) - changed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 0x26, 0xFF, 0x7F, /* Logical Maximum (32767) - changed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 0x75, 0x10, /* Report Size (16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 0x19, 0x00, /* Usage Minimum (Unassigned) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 0x81, 0x00, /* Input (Data,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 0xC0, /* End Collection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 0x09, 0x01, /* Usage (0x01) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 0xA1, 0x01, /* Collection (Application) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 0x85, 0x04, /* Report ID (4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 0x75, 0x10, /* Report Size (16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 0x19, 0x00, /* Usage Minimum (0x00) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 0x81, 0x00, /* Input (Data,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 0x75, 0x02, /* Report Size (2) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 0x25, 0x02, /* Logical Maximum (2) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 0x09, 0x90, /* Usage (0x90) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 0xB1, 0x02, /* Feature (Data,Var,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 0x75, 0x06, /* Report Size (6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 0xB1, 0x01, /* Feature (Const,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 0x75, 0x01, /* Report Size (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 0x25, 0x01, /* Logical Maximum (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 0x05, 0x08, /* Usage Page (LEDs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 0x09, 0x2A, /* Usage (On-Line) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 0x91, 0x02, /* Output (Data,Var,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 0x09, 0x4B, /* Usage (Generic Indicator) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 0x91, 0x02, /* Output (Data,Var,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 0x75, 0x06, /* Report Size (6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 0x95, 0x01, /* Report Count (1) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 0x91, 0x01, /* Output (Const,Array,Abs) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 0xC0 /* End Collection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) static __u8 *maltron_report_fixup(struct hid_device *hdev, __u8 *rdesc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) unsigned int *rsize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (*rsize == sizeof(maltron_rdesc_o) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) !memcmp(maltron_rdesc_o, rdesc, sizeof(maltron_rdesc_o))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) hid_info(hdev, "Replacing Maltron L90 keyboard report descriptor\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) *rsize = sizeof(maltron_rdesc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) return maltron_rdesc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return rdesc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static const struct hid_device_id maltron_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_MALTRON_KB)},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) MODULE_DEVICE_TABLE(hid, maltron_devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) static struct hid_driver maltron_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .name = "maltron",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .id_table = maltron_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) .report_fixup = maltron_report_fixup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) module_hid_driver(maltron_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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