tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4
5$id: http://devicetree.org/schemas/input/google,cros-ec-keyb.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: ChromeOS EC Keyboard
9
10maintainers:
11 - Simon Glass <sjg@chromium.org>
12 - Benson Leung <bleung@chromium.org>
13 - Enric Balletbo i Serra <enric.balletbo@collabora.com>
14
15description: |
16 Google's ChromeOS EC Keyboard is a simple matrix keyboard
17 implemented on a separate EC (Embedded Controller) device. It provides
18 a message for reading key scans from the EC. These are then converted
19 into keycodes for processing by the kernel.
20
21allOf:
22 - $ref: "/schemas/input/matrix-keymap.yaml#"
23
24properties:
25 compatible:
26 const: google,cros-ec-keyb
27
28 google,needs-ghost-filter:
29 description:
30 Enable a ghost filter for the matrix keyboard. This is recommended
31 if the EC does not have its own logic or hardware for this.
32 type: boolean
33
34required:
35 - compatible
36
37unevaluatedProperties: false
38
39examples:
40 - |
41 cros-ec-keyb {
42 compatible = "google,cros-ec-keyb";
43 keypad,num-rows = <8>;
44 keypad,num-columns = <13>;
45 google,needs-ghost-filter;
46 /*
47 * Keymap entries take the form of 0xRRCCKKKK where
48 * RR=Row CC=Column KKKK=Key Code
49 * The values below are for a US keyboard layout and
50 * are taken from the Linux driver. Note that the
51 * 102ND key is not used for US keyboards.
52 */
53 linux,keymap = <
54 /* CAPSLCK F1 B F10 */
55 0x0001003a 0x0002003b 0x00030030 0x00040044
56 /* N = R_ALT ESC */
57 0x00060031 0x0008000d 0x000a0064 0x01010001
58 /* F4 G F7 H */
59 0x0102003e 0x01030022 0x01040041 0x01060023
60 /* ' F9 BKSPACE L_CTRL */
61 0x01080028 0x01090043 0x010b000e 0x0200001d
62 /* TAB F3 T F6 */
63 0x0201000f 0x0202003d 0x02030014 0x02040040
64 /* ] Y 102ND [ */
65 0x0205001b 0x02060015 0x02070056 0x0208001a
66 /* F8 GRAVE F2 5 */
67 0x02090042 0x03010029 0x0302003c 0x03030006
68 /* F5 6 - \ */
69 0x0304003f 0x03060007 0x0308000c 0x030b002b
70 /* R_CTRL A D F */
71 0x04000061 0x0401001e 0x04020020 0x04030021
72 /* S K J ; */
73 0x0404001f 0x04050025 0x04060024 0x04080027
74 /* L ENTER Z C */
75 0x04090026 0x040b001c 0x0501002c 0x0502002e
76 /* V X , M */
77 0x0503002f 0x0504002d 0x05050033 0x05060032
78 /* L_SHIFT / . SPACE */
79 0x0507002a 0x05080035 0x05090034 0x050B0039
80 /* 1 3 4 2 */
81 0x06010002 0x06020004 0x06030005 0x06040003
82 /* 8 7 0 9 */
83 0x06050009 0x06060008 0x0608000b 0x0609000a
84 /* L_ALT DOWN RIGHT Q */
85 0x060a0038 0x060b006c 0x060c006a 0x07010010
86 /* E R W I */
87 0x07020012 0x07030013 0x07040011 0x07050017
88 /* U R_SHIFT P O */
89 0x07060016 0x07070036 0x07080019 0x07090018
90 /* UP LEFT */
91 0x070b0067 0x070c0069>;
92 };