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 }; 93