Initial work on keymap transforms for non-standard matrixes.

* Allows "gaps" for keyboards like Kyra. * Allows keyboards with matrixes that don't map the logical key locations to have normal looking keymaps when defined.
5 years ago · 1751470785
12 changed files with 1028 additions and 0 deletions
--- a/app/boards/shields/kyria/Kconfig.defconfig
+++ b/app/boards/shields/kyria/Kconfig.defconfig
@ -0,0 +1,7 @@
 if SHIELD_KYRIA
 config ZMK_KEYBOARD_NAME
 	default "Kyria"
 endif
--- a/app/boards/shields/kyria/Kconfig.shield
+++ b/app/boards/shields/kyria/Kconfig.shield
@ -0,0 +1,5 @@
 # Copyright (c) 2020 Pete Johanson
 # SPDX-License-Identifier: MIT
 config SHIELD_KYRIA
 	def_bool $(shields_list_contains,kyria)
--- a/app/boards/shields/kyria/keymaps/default/include/keymap.h
+++ b/app/boards/shields/kyria/keymaps/default/include/keymap.h
@ -0,0 +1,5 @@
 #include <dt-bindings/zmk/keys.h>
 #define CC_RAIS ZC_CSTM(1)
 #define CC_LOWR ZC_CSTM(2)
--- a/app/boards/shields/kyria/keymaps/default/keymap.c
+++ b/app/boards/shields/kyria/keymaps/default/keymap.c
@ -0,0 +1,34 @@
 #include <zmk/keys.h>
 #include <zmk/keymap.h>
 #include <keymap.h>
 bool zmk_handle_key_user(struct zmk_key_event *key_event)
 {
 	switch (key_event->key)
 	{
 	case CC_LOWR:
 		if (key_event->pressed)
 		{
 			zmk_keymap_layer_activate(1);
 		}
 		else
 		{
 			zmk_keymap_layer_deactivate(1);
 		}
 		return false;
 	case CC_RAIS:
 		if (key_event->pressed)
 		{
 			zmk_keymap_layer_activate(2);
 		}
 		else
 		{
 			zmk_keymap_layer_deactivate(2);
 		}
 		return false;
 	}
 	return true;
 };
--- a/app/boards/shields/kyria/keymaps/default/keymap.overlay
+++ b/app/boards/shields/kyria/keymaps/default/keymap.overlay
@ -0,0 +1,50 @@
 #include <dt-bindings/zmk/keys.h>
 #include <dt-bindings/zmk/keymap-transform.h>
 #include <keymap.h>
 / {
 	chosen {
 		zmk,keymap = &keymap0;
 	};
 	keymap0: keymap {
 		compatible = "zmk,keymap";
 		label ="Default Kyria Keymap";
 		layers = <&default>;
 		transform = <&default_transform>;
 	};
 	default_transform: keymap_transform_0 {
 		compatible = "zmk,keymap-transform";
 		map = <
 			IDENTITY_ROW(0, 6)       OFFSET_ROW(6, 0, 6)
 			IDENTITY_ROW(1, 6)       OFFSET_ROW(6, 1, 6)
 			IDENTITY_ROW(2, 8)       OFFSET_ROW(8, 2, 8)
 			OFFSET_ROW(3, 3, 5)      OFFSET_ROW(8, 3, 5)
 		>;
 	};
 	five_column_transform: keymap_transform_1 {
 		compatible = "zmk,keymap-transform";
 		map = <
 			IDENTITY_ROW(0, 5)       OFFSET_ROW(5, 0, 5)
 			IDENTITY_ROW(1, 5)       OFFSET_ROW(6, 1, 5)
 			IDENTITY_ROW(2, 7)       OFFSET_ROW(7, 2, 7)
 			OFFSET_ROW(2, 3, 5)      OFFSET_ROW(7, 3, 5)
 		>;
 	};
 	layers {
 		compatible = "zmk,layers";
 		default: layer_0 {
 			label = "DEFAULT";
 			keys = <
 	KC_ESC KC_Q KC_W KC_E KC_R KC_T                                   KC_Y KC_U KC_I KC_O KC_P KC_PIPE
 	KC_BKSP KC_A KC_S KC_D KC_F KC_G                                  KC_H KC_J KC_K KC_L KC_SCLN KC_QUOT
 	KC_LSFT KC_Z KC_X KC_C KC_V KC_B KC_LSFT KC_LSFT         KC_LSFT KC_LSFT  KC_N KC_M KC_CMMA KC_DOT KC_BSLH KC_MIN
 	                   KC_LGUI KC_DEL KC_RET KC_SPC KC_ESC  KC_RET  KC_SPC KC_TAB KC_BKSP KC_RALT
 	>;
 		};
 	};
 };
--- a/app/boards/shields/kyria/kyria.conf
+++ b/app/boards/shields/kyria/kyria.conf
--- a/app/boards/shields/kyria/kyria.overlay
+++ b/app/boards/shields/kyria/kyria.overlay
@ -0,0 +1,75 @@
 /*
 * Copyright (c) 2020 Pete Johanson
 *
 * SPDX-License-Identifier: MIT
 */
 / {
 	chosen {
 		zmk,kscan = &kscan0;
 	};
 	kscan0: kscan_comp {
 		compatible = "zmk,kscan-composite";
 		label = "KSCAN_COMP";
 		rows = <4>;
 		columns = <16>;
 		left {
 			kscan = <&kscan_left>;
 		};
 		right {
 			kscan = <&kscan_right>;
 			 // TODO: Actually put this in the kscan driver, so it can report
 			 // HID events directly to host if plugged in directly.
 			column-offset = <8>;
 		};
 	};
 	kscan_left: kscan_left {
 		compatible = "gpio-kscan";
 		label = "KSCAN_LEFT";
 		diode-direction = "row2col";
 		row-gpios = <&pro_micro_pins 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 		            <&pro_micro_pins 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
 		col-gpios = <&pro_micro_pins 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 		            <&pro_micro_pins 16 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 18 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 19 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 20 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 21 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
 	};
 	kscan_right: kscan_right {
 		compatible = "gpio-kscan";
 		label = "KSCAN_RIGHT";
 		diode-direction = "row2col";
 		row-gpios = <&pro_micro_pins 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 		            <&pro_micro_pins 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
 		col-gpios = <&pro_micro_pins 21 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 		            <&pro_micro_pins 20 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 19 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 18 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 16 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
 					<&pro_micro_pins 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
 	};
 	// TODO: Encoder node(s)
 	// TODO: OLED node
 	// TODO: RGB node(s)
 };
--- a/app/dts/bindings/zmk,keymap-transform.yaml
+++ b/app/dts/bindings/zmk,keymap-transform.yaml
@ -0,0 +1,9 @@
 description: |
  Defines a mapping from keymap logical positions to matrix physical positions
 compatible: "zmk,keymap-transform"
 properties:
  map:
    type: array
    required: true
--- a/app/dts/bindings/zmk,keymap.yaml
+++ b/app/dts/bindings/zmk,keymap.yaml
@ -4,6 +4,10 @@ description: |
 compatible: "zmk,keymap"
 properties:
  transform:
    type: phandle
    required: false
  label:
    type: string
    required: true
--- a/app/include/dt-bindings/zmk/keymap-transform.h
+++ b/app/include/dt-bindings/zmk/keymap-transform.h
@ -0,0 +1,13 @@
 #include <zmk/util.h>
 #define KT_ROW(item) (item >> 8)
 #define KT_COL(item) (item & 0xFF)
 #define _ROW_COL(row, col) (((row) << 8) + (col))
 #define _IDENTITY_ENTRY(col, row) _ROW_COL(row, col)
 #define IDENTITY_ROW(row, count) UTIL_LISTIFY(count, _IDENTITY_ENTRY, row)
 #define _OFFSET_ENTRY(col, offset, row) _ROW_COL(row, col + offset)
 #define OFFSET_ROW(offset, row, count) UTIL_LISTIFY(count, _OFFSET_ENTRY, offset, row)
--- a/app/include/zmk/util.h
+++ b/app/include/zmk/util.h
@ -0,0 +1,777 @@
 /*
 * Copyright (c) 2011-2014, Wind River Systems, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 #pragma once
 /** @brief Return larger value of two provided expressions.
 *
 * @note Arguments are evaluated twice. See Z_MAX for GCC only, single
 * evaluation version.
 */
 #ifndef MAX
 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
 #endif
 /** @brief Return smaller value of two provided expressions.
 *
 * @note Arguments are evaluated twice. See Z_MIN for GCC only, single
 * evaluation version.
 */
 #ifndef MIN
 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
 #endif
 #define BIT(n)  (1UL << (n))
 /** 64-bit unsigned integer with bit position _n set */
 #define BIT64(_n) (1ULL << (_n))
 /**
 * @brief Macro sets or clears bit depending on boolean value
 *
 * @param var Variable to be altered
 * @param bit Bit number
 * @param set Value 0 clears bit, any other value sets bit
 */
 #define WRITE_BIT(var, bit, set) \
 	((var) = (set) ? ((var) | BIT(bit)) : ((var) & ~BIT(bit)))
 #define BIT_MASK(n) (BIT(n) - 1)
 /**
 * @brief Macro with empty replacement list
 *
 * This trivial definition is provided to use where macro is expected
 * to evaluate to empty replacement string or when it is needed to
 * cheat checkpatch.
 *
 * Examples
 *
 *	#define LIST_ITEM(n) , item##n
 *
 * would cause error with checkpatch, but:
 *
 *	#define LIST_TIEM(n) EMPTY, item##m
 *
 * would not.
 */
 #define EMPTY
 /**
 * @brief Get first argument from variable list of arguments
 */
 #define GET_ARG1(arg1, ...) arg1
 /**
 * @brief Get second argument from variable list of arguments
 */
 #define GET_ARG2(arg1, arg2, ...) arg2
 /**
 * @brief Get all arguments except the first one.
 */
 #define GET_ARGS_LESS_1(val, ...) __VA_ARGS__
 /**
 * Macros for doing code-generation with the preprocessor.
 *
 * Generally it is better to generate code with the preprocessor than
 * to copy-paste code or to generate code with the build system /
 * python script's etc.
 *
 * http://stackoverflow.com/a/12540675
 */
 #define UTIL_EMPTY(...)
 #define UTIL_DEFER(...) __VA_ARGS__ UTIL_EMPTY()
 #define UTIL_OBSTRUCT(...) __VA_ARGS__ UTIL_DEFER(UTIL_EMPTY)()
 #define UTIL_EXPAND(...) __VA_ARGS__
 #define UTIL_EVAL(...)  UTIL_EVAL1(UTIL_EVAL1(UTIL_EVAL1(__VA_ARGS__)))
 #define UTIL_EVAL1(...) UTIL_EVAL2(UTIL_EVAL2(UTIL_EVAL2(__VA_ARGS__)))
 #define UTIL_EVAL2(...) UTIL_EVAL3(UTIL_EVAL3(UTIL_EVAL3(__VA_ARGS__)))
 #define UTIL_EVAL3(...) UTIL_EVAL4(UTIL_EVAL4(UTIL_EVAL4(__VA_ARGS__)))
 #define UTIL_EVAL4(...) UTIL_EVAL5(UTIL_EVAL5(UTIL_EVAL5(__VA_ARGS__)))
 #define UTIL_EVAL5(...) __VA_ARGS__
 #define UTIL_CAT(a, ...) UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)
 #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
 #define UTIL_INC(x) UTIL_PRIMITIVE_CAT(UTIL_INC_, x)
 #define UTIL_INC_0 1
 #define UTIL_INC_1 2
 #define UTIL_INC_2 3
 #define UTIL_INC_3 4
 #define UTIL_INC_4 5
 #define UTIL_INC_5 6
 #define UTIL_INC_6 7
 #define UTIL_INC_7 8
 #define UTIL_INC_8 9
 #define UTIL_INC_9 10
 #define UTIL_INC_10 11
 #define UTIL_INC_11 12
 #define UTIL_INC_12 13
 #define UTIL_INC_13 14
 #define UTIL_INC_14 15
 #define UTIL_INC_15 16
 #define UTIL_INC_16 17
 #define UTIL_INC_17 18
 #define UTIL_INC_18 19
 #define UTIL_INC_19 20
 #define UTIL_INC_20 21
 #define UTIL_INC_21 22
 #define UTIL_INC_22 23
 #define UTIL_INC_23 24
 #define UTIL_INC_24 25
 #define UTIL_INC_25 26
 #define UTIL_INC_26 27
 #define UTIL_INC_27 28
 #define UTIL_INC_28 29
 #define UTIL_INC_29 30
 #define UTIL_INC_30 31
 #define UTIL_INC_31 32
 #define UTIL_INC_32 33
 #define UTIL_INC_33 34
 #define UTIL_INC_34 35
 #define UTIL_INC_35 36
 #define UTIL_INC_36 37
 #define UTIL_INC_37 38
 #define UTIL_INC_38 39
 #define UTIL_INC_39 40
 #define UTIL_INC_40 41
 #define UTIL_INC_41 42
 #define UTIL_INC_42 43
 #define UTIL_INC_43 44
 #define UTIL_INC_44 45
 #define UTIL_INC_45 46
 #define UTIL_INC_46 47
 #define UTIL_INC_47 48
 #define UTIL_INC_48 49
 #define UTIL_INC_49 50
 #define UTIL_INC_50 51
 #define UTIL_INC_51 52
 #define UTIL_INC_52 53
 #define UTIL_INC_53 54
 #define UTIL_INC_54 55
 #define UTIL_INC_55 56
 #define UTIL_INC_56 57
 #define UTIL_INC_57 58
 #define UTIL_INC_58 59
 #define UTIL_INC_59 60
 #define UTIL_INC_50 51
 #define UTIL_INC_51 52
 #define UTIL_INC_52 53
 #define UTIL_INC_53 54
 #define UTIL_INC_54 55
 #define UTIL_INC_55 56
 #define UTIL_INC_56 57
 #define UTIL_INC_57 58
 #define UTIL_INC_58 59
 #define UTIL_INC_59 60
 #define UTIL_INC_60 61
 #define UTIL_INC_61 62
 #define UTIL_INC_62 63
 #define UTIL_INC_63 64
 #define UTIL_INC_64 65
 #define UTIL_INC_65 66
 #define UTIL_INC_66 67
 #define UTIL_INC_67 68
 #define UTIL_INC_68 69
 #define UTIL_INC_69 70
 #define UTIL_INC_70 71
 #define UTIL_INC_71 72
 #define UTIL_INC_72 73
 #define UTIL_INC_73 74
 #define UTIL_INC_74 75
 #define UTIL_INC_75 76
 #define UTIL_INC_76 77
 #define UTIL_INC_77 78
 #define UTIL_INC_78 79
 #define UTIL_INC_79 80
 #define UTIL_INC_80 81
 #define UTIL_INC_81 82
 #define UTIL_INC_82 83
 #define UTIL_INC_83 84
 #define UTIL_INC_84 85
 #define UTIL_INC_85 86
 #define UTIL_INC_86 87
 #define UTIL_INC_87 88
 #define UTIL_INC_88 89
 #define UTIL_INC_89 90
 #define UTIL_INC_90 91
 #define UTIL_INC_91 92
 #define UTIL_INC_92 93
 #define UTIL_INC_93 94
 #define UTIL_INC_94 95
 #define UTIL_INC_95 96
 #define UTIL_INC_96 97
 #define UTIL_INC_97 98
 #define UTIL_INC_98 99
 #define UTIL_INC_99 100
 #define UTIL_DEC(x) UTIL_PRIMITIVE_CAT(UTIL_DEC_, x)
 #define UTIL_DEC_0 0
 #define UTIL_DEC_1 0
 #define UTIL_DEC_2 1
 #define UTIL_DEC_3 2
 #define UTIL_DEC_4 3
 #define UTIL_DEC_5 4
 #define UTIL_DEC_6 5
 #define UTIL_DEC_7 6
 #define UTIL_DEC_8 7
 #define UTIL_DEC_9 8
 #define UTIL_DEC_10 9
 #define UTIL_DEC_11 10
 #define UTIL_DEC_12 11
 #define UTIL_DEC_13 12
 #define UTIL_DEC_14 13
 #define UTIL_DEC_15 14
 #define UTIL_DEC_16 15
 #define UTIL_DEC_17 16
 #define UTIL_DEC_18 17
 #define UTIL_DEC_19 18
 #define UTIL_DEC_20 19
 #define UTIL_DEC_21 20
 #define UTIL_DEC_22 21
 #define UTIL_DEC_23 22
 #define UTIL_DEC_24 23
 #define UTIL_DEC_25 24
 #define UTIL_DEC_26 25
 #define UTIL_DEC_27 26
 #define UTIL_DEC_28 27
 #define UTIL_DEC_29 28
 #define UTIL_DEC_30 29
 #define UTIL_DEC_31 30
 #define UTIL_DEC_32 31
 #define UTIL_DEC_33 32
 #define UTIL_DEC_34 33
 #define UTIL_DEC_35 34
 #define UTIL_DEC_36 35
 #define UTIL_DEC_37 36
 #define UTIL_DEC_38 37
 #define UTIL_DEC_39 38
 #define UTIL_DEC_40 39
 #define UTIL_DEC_41 40
 #define UTIL_DEC_42 41
 #define UTIL_DEC_43 42
 #define UTIL_DEC_44 43
 #define UTIL_DEC_45 44
 #define UTIL_DEC_46 45
 #define UTIL_DEC_47 46
 #define UTIL_DEC_48 47
 #define UTIL_DEC_49 48
 #define UTIL_DEC_50 49
 #define UTIL_DEC_51 50
 #define UTIL_DEC_52 51
 #define UTIL_DEC_53 52
 #define UTIL_DEC_54 53
 #define UTIL_DEC_55 54
 #define UTIL_DEC_56 55
 #define UTIL_DEC_57 56
 #define UTIL_DEC_58 57
 #define UTIL_DEC_59 58
 #define UTIL_DEC_60 59
 #define UTIL_DEC_61 60
 #define UTIL_DEC_62 61
 #define UTIL_DEC_63 62
 #define UTIL_DEC_64 63
 #define UTIL_DEC_65 64
 #define UTIL_DEC_66 65
 #define UTIL_DEC_67 66
 #define UTIL_DEC_68 67
 #define UTIL_DEC_69 68
 #define UTIL_DEC_70 69
 #define UTIL_DEC_71 70
 #define UTIL_DEC_72 71
 #define UTIL_DEC_73 72
 #define UTIL_DEC_74 73
 #define UTIL_DEC_75 74
 #define UTIL_DEC_76 75
 #define UTIL_DEC_77 76
 #define UTIL_DEC_78 77
 #define UTIL_DEC_79 78
 #define UTIL_DEC_80 79
 #define UTIL_DEC_81 80
 #define UTIL_DEC_82 81
 #define UTIL_DEC_83 82
 #define UTIL_DEC_84 83
 #define UTIL_DEC_85 84
 #define UTIL_DEC_86 85
 #define UTIL_DEC_87 86
 #define UTIL_DEC_88 87
 #define UTIL_DEC_89 88
 #define UTIL_DEC_90 89
 #define UTIL_DEC_91 90
 #define UTIL_DEC_92 91
 #define UTIL_DEC_93 92
 #define UTIL_DEC_94 93
 #define UTIL_DEC_95 94
 #define UTIL_DEC_96 95
 #define UTIL_DEC_97 96
 #define UTIL_DEC_98 97
 #define UTIL_DEC_99 98
 #define UTIL_DEC_100 99
 #define UTIL_DEC_101 100
 #define UTIL_DEC_102 101
 #define UTIL_DEC_103 102
 #define UTIL_DEC_104 103
 #define UTIL_DEC_105 104
 #define UTIL_DEC_106 105
 #define UTIL_DEC_107 106
 #define UTIL_DEC_108 107
 #define UTIL_DEC_109 108
 #define UTIL_DEC_110 109
 #define UTIL_DEC_111 110
 #define UTIL_DEC_112 111
 #define UTIL_DEC_113 112
 #define UTIL_DEC_114 113
 #define UTIL_DEC_115 114
 #define UTIL_DEC_116 115
 #define UTIL_DEC_117 116
 #define UTIL_DEC_118 117
 #define UTIL_DEC_119 118
 #define UTIL_DEC_120 119
 #define UTIL_DEC_121 120
 #define UTIL_DEC_122 121
 #define UTIL_DEC_123 122
 #define UTIL_DEC_124 123
 #define UTIL_DEC_125 124
 #define UTIL_DEC_126 125
 #define UTIL_DEC_127 126
 #define UTIL_DEC_128 127
 #define UTIL_DEC_129 128
 #define UTIL_DEC_130 129
 #define UTIL_DEC_131 130
 #define UTIL_DEC_132 131
 #define UTIL_DEC_133 132
 #define UTIL_DEC_134 133
 #define UTIL_DEC_135 134
 #define UTIL_DEC_136 135
 #define UTIL_DEC_137 136
 #define UTIL_DEC_138 137
 #define UTIL_DEC_139 138
 #define UTIL_DEC_140 139
 #define UTIL_DEC_141 140
 #define UTIL_DEC_142 141
 #define UTIL_DEC_143 142
 #define UTIL_DEC_144 143
 #define UTIL_DEC_145 144
 #define UTIL_DEC_146 145
 #define UTIL_DEC_147 146
 #define UTIL_DEC_148 147
 #define UTIL_DEC_149 148
 #define UTIL_DEC_150 149
 #define UTIL_DEC_151 150
 #define UTIL_DEC_152 151
 #define UTIL_DEC_153 152
 #define UTIL_DEC_154 153
 #define UTIL_DEC_155 154
 #define UTIL_DEC_156 155
 #define UTIL_DEC_157 156
 #define UTIL_DEC_158 157
 #define UTIL_DEC_159 158
 #define UTIL_DEC_160 159
 #define UTIL_DEC_161 160
 #define UTIL_DEC_162 161
 #define UTIL_DEC_163 162
 #define UTIL_DEC_164 163
 #define UTIL_DEC_165 164
 #define UTIL_DEC_166 165
 #define UTIL_DEC_167 166
 #define UTIL_DEC_168 167
 #define UTIL_DEC_169 168
 #define UTIL_DEC_170 169
 #define UTIL_DEC_171 170
 #define UTIL_DEC_172 171
 #define UTIL_DEC_173 172
 #define UTIL_DEC_174 173
 #define UTIL_DEC_175 174
 #define UTIL_DEC_176 175
 #define UTIL_DEC_177 176
 #define UTIL_DEC_178 177
 #define UTIL_DEC_179 178
 #define UTIL_DEC_180 179
 #define UTIL_DEC_181 180
 #define UTIL_DEC_182 181
 #define UTIL_DEC_183 182
 #define UTIL_DEC_184 183
 #define UTIL_DEC_185 184
 #define UTIL_DEC_186 185
 #define UTIL_DEC_187 186
 #define UTIL_DEC_188 187
 #define UTIL_DEC_189 188
 #define UTIL_DEC_190 189
 #define UTIL_DEC_191 190
 #define UTIL_DEC_192 191
 #define UTIL_DEC_193 192
 #define UTIL_DEC_194 193
 #define UTIL_DEC_195 194
 #define UTIL_DEC_196 195
 #define UTIL_DEC_197 196
 #define UTIL_DEC_198 197
 #define UTIL_DEC_199 198
 #define UTIL_DEC_200 199
 #define UTIL_DEC_201 200
 #define UTIL_DEC_202 201
 #define UTIL_DEC_203 202
 #define UTIL_DEC_204 203
 #define UTIL_DEC_205 204
 #define UTIL_DEC_206 205
 #define UTIL_DEC_207 206
 #define UTIL_DEC_208 207
 #define UTIL_DEC_209 208
 #define UTIL_DEC_210 209
 #define UTIL_DEC_211 210
 #define UTIL_DEC_212 211
 #define UTIL_DEC_213 212
 #define UTIL_DEC_214 213
 #define UTIL_DEC_215 214
 #define UTIL_DEC_216 215
 #define UTIL_DEC_217 216
 #define UTIL_DEC_218 217
 #define UTIL_DEC_219 218
 #define UTIL_DEC_220 219
 #define UTIL_DEC_221 220
 #define UTIL_DEC_222 221
 #define UTIL_DEC_223 222
 #define UTIL_DEC_224 223
 #define UTIL_DEC_225 224
 #define UTIL_DEC_226 225
 #define UTIL_DEC_227 226
 #define UTIL_DEC_228 227
 #define UTIL_DEC_229 228
 #define UTIL_DEC_230 229
 #define UTIL_DEC_231 230
 #define UTIL_DEC_232 231
 #define UTIL_DEC_233 232
 #define UTIL_DEC_234 233
 #define UTIL_DEC_235 234
 #define UTIL_DEC_236 235
 #define UTIL_DEC_237 236
 #define UTIL_DEC_238 237
 #define UTIL_DEC_239 238
 #define UTIL_DEC_240 239
 #define UTIL_DEC_241 240
 #define UTIL_DEC_242 241
 #define UTIL_DEC_243 242
 #define UTIL_DEC_244 243
 #define UTIL_DEC_245 244
 #define UTIL_DEC_246 245
 #define UTIL_DEC_247 246
 #define UTIL_DEC_248 247
 #define UTIL_DEC_249 248
 #define UTIL_DEC_250 249
 #define UTIL_DEC_251 250
 #define UTIL_DEC_252 251
 #define UTIL_DEC_253 252
 #define UTIL_DEC_254 253
 #define UTIL_DEC_255 254
 #define UTIL_DEC_256 255
 #define UTIL_CHECK_N(x, n, ...) n
 #define UTIL_CHECK(...) UTIL_CHECK_N(__VA_ARGS__, 0,)
 #define UTIL_NOT(x) UTIL_CHECK(UTIL_PRIMITIVE_CAT(UTIL_NOT_, x))
 #define UTIL_NOT_0 ~, 1,
 #define UTIL_COMPL(b) UTIL_PRIMITIVE_CAT(UTIL_COMPL_, b)
 #define UTIL_COMPL_0 1
 #define UTIL_COMPL_1 0
 #define UTIL_BOOL(x) UTIL_COMPL(UTIL_NOT(x))
 #define UTIL_IIF(c) UTIL_PRIMITIVE_CAT(UTIL_IIF_, c)
 #define UTIL_IIF_0(t, ...) __VA_ARGS__
 #define UTIL_IIF_1(t, ...) t
 #define UTIL_IF(c) UTIL_IIF(UTIL_BOOL(c))
 /*
 * These are like || and &&, but they do evaluation and
 * short-circuiting at preprocessor time instead of runtime.
 *
 * UTIL_OR(foo, bar) is sometimes a replacement for (foo || bar)
 * when "bar" is an expression that would cause a build
 * error when "foo" is true.
 *
 * UTIL_AND(foo, bar) is sometimes a replacement for (foo && bar)
 * when "bar" is an expression that would cause a build
 * error when "foo" is false.
 */
 #define UTIL_OR(a, b) COND_CODE_1(UTIL_BOOL(a), (a), (b))
 #define UTIL_AND(a, b) COND_CODE_1(UTIL_BOOL(a), (b), (0))
 #define UTIL_EAT(...)
 #define UTIL_EXPAND(...) __VA_ARGS__
 #define UTIL_WHEN(c) UTIL_IF(c)(UTIL_EXPAND, UTIL_EAT)
 #define UTIL_REPEAT(count, macro, ...)			    \
 	UTIL_WHEN(count)				    \
 	(						    \
 		UTIL_OBSTRUCT(UTIL_REPEAT_INDIRECT) ()	    \
 		(					    \
 			UTIL_DEC(count), macro, __VA_ARGS__ \
 		)					    \
 		UTIL_OBSTRUCT(macro)			    \
 		(					    \
 			UTIL_DEC(count), __VA_ARGS__	    \
 		)					    \
 	)
 #define UTIL_REPEAT_INDIRECT() UTIL_REPEAT
 /**
 * @brief Generates a sequence of code.
 *
 * Useful for generating code like;
 *
 * NRF_PWM0, NRF_PWM1, NRF_PWM2,
 *
 * @arg LEN: The length of the sequence. Must be defined and less than
 * 20.
 *
 * @arg F(i, ...): A macro function that accepts at least two arguments.
 *  F is called repeatedly, the first argument is the index in the sequence,
 *  the variable list of arguments passed to UTIL_LISTIFY are passed through
 *  to F.
 *
 * Example:
 *
 *    \#define FOO(i, _) NRF_PWM ## i ,
 *    { UTIL_LISTIFY(PWM_COUNT, FOO) }
 *    The above two lines will generate the below:
 *    { NRF_PWM0 , NRF_PWM1 , }
 *
 * @note Calling UTIL_LISTIFY with undefined arguments has undefined
 * behavior.
 */
 #define UTIL_LISTIFY(LEN, F, ...) UTIL_EVAL(UTIL_REPEAT(LEN, F, __VA_ARGS__))
 /* Set of internal macros used for FOR_EACH series of macros. */
 #define Z_FOR_EACH_IDX(count, n, macro, semicolon, fixed_arg0, fixed_arg1, ...)\
 	UTIL_WHEN(count)						\
 	(								\
 		UTIL_OBSTRUCT(macro)					\
 		(							\
 			fixed_arg0, fixed_arg1, n, GET_ARG1(__VA_ARGS__)\
 		)semicolon						\
 		UTIL_OBSTRUCT(Z_FOR_EACH_IDX_INDIRECT) ()		\
 		(							\
 			UTIL_DEC(count), UTIL_INC(n), macro, semicolon, \
 			fixed_arg0, fixed_arg1,				\
 			GET_ARGS_LESS_1(__VA_ARGS__)			\
 		)							\
 	)
 #define Z_FOR_EACH_IDX_INDIRECT() Z_FOR_EACH_IDX
 #define Z_FOR_EACH_IDX2(count, iter, macro, sc, fixed_arg0, fixed_arg1, ...) \
 	UTIL_EVAL(Z_FOR_EACH_IDX(count, iter, macro, sc,\
 				 fixed_arg0, fixed_arg1, __VA_ARGS__))
 #define Z_FOR_EACH_SWALLOW_NOTHING(F, fixed_arg, index, arg) \
 	F(index, arg, fixed_arg)
 #define Z_FOR_EACH_SWALLOW_FIXED_ARG(F, fixed_arg, index, arg) F(index, arg)
 #define Z_FOR_EACH_SWALLOW_INDEX_FIXED_ARG(F, fixed_arg, index, arg) F(arg)
 #define Z_FOR_EACH_SWALLOW_INDEX(F, fixed_arg, index, arg) F(arg, fixed_arg)
 /**
 * @brief Calls macro F for each provided argument with index as first argument
 *	  and nth parameter as the second argument.
 *
 * Example:
 *
 *     #define F(idx, x) int a##idx = x;
 *     FOR_EACH_IDX(F, 4, 5, 6)
 *
 * will result in following code:
 *
 *     int a0 = 4;
 *     int a1 = 5;
 *     int a2 = 6;
 *
 * @param F Macro takes index and first argument and nth variable argument as
 *	    the second one.
 * @param ... Variable list of argument. For each argument macro F is executed.
 */
 #define FOR_EACH_IDX(F, ...) \
 	Z_FOR_EACH_IDX2(NUM_VA_ARGS_LESS_1(__VA_ARGS__, _), \
 			0, Z_FOR_EACH_SWALLOW_FIXED_ARG, /*no ;*/, \
 			F, 0, __VA_ARGS__)
 /**
 * @brief Calls macro F for each provided argument with index as first argument
 *	  and nth parameter as the second argument and fixed argument as the
 *	  third one.
 *
 * Example:
 *
 *     #define F(idx, x, fixed_arg) int fixed_arg##idx = x;
 *     FOR_EACH_IDX_FIXED_ARG(F, a, 4, 5, 6)
 *
 * will result in following code:
 *
 *     int a0 = 4;
 *     int a1 = 5;
 *     int a2 = 6;
 *
 * @param F Macro takes index and first argument and nth variable argument as
 *	    the second one and fixed argumnet as the third.
 * @param fixed_arg Fixed argument passed to F macro.
 * @param ... Variable list of argument. For each argument macro F is executed.
 */
 #define FOR_EACH_IDX_FIXED_ARG(F, fixed_arg, ...) \
 	Z_FOR_EACH_IDX2(NUM_VA_ARGS_LESS_1(__VA_ARGS__, _), \
 			0, Z_FOR_EACH_SWALLOW_NOTHING, /*no ;*/, \
 			F, fixed_arg, __VA_ARGS__)
 /**
 * @brief Calls macro F for each provided argument.
 *
 * Example:
 *
 *     #define F(x) int a##x;
 *     FOR_EACH(F, 4, 5, 6)
 *
 * will result in following code:
 *
 *     int a4;
 *     int a5;
 *     int a6;
 *
 * @param F Macro takes nth variable argument as the argument.
 * @param ... Variable list of argument. For each argument macro F is executed.
 */
 #define FOR_EACH(F, ...) \
 	Z_FOR_EACH_IDX2(NUM_VA_ARGS_LESS_1(__VA_ARGS__, _), \
 			0, Z_FOR_EACH_SWALLOW_INDEX_FIXED_ARG, /*no ;*/, \
 			F, 0, __VA_ARGS__)
 /**
 * @brief Calls macro F for each provided argument with additional fixed
 *	  argument.
 *
 * After each iteration semicolon is added.
 *
 * Example:
 *
 *     static void func(int val, void *dev);
 *     FOR_EACH_FIXED_ARG(func, dev, 4, 5, 6)
 *
 * will result in following code:
 *
 *     func(4, dev);
 *     func(5, dev);
 *     func(6, dev);
 *
 * @param F Macro takes nth variable argument as the first parameter and
 *	     fixed argument as the second parameter.
 * @param fixed_arg Fixed argument forward to macro execution for each argument.
 * @param ... Variable list of argument. For each argument macro F is executed.
 */
 #define FOR_EACH_FIXED_ARG(F, fixed_arg, ...) \
 	Z_FOR_EACH_IDX2(NUM_VA_ARGS_LESS_1(__VA_ARGS__, _), \
 			0, Z_FOR_EACH_SWALLOW_INDEX, ;, \
 			F, fixed_arg, __VA_ARGS__)
 /**@brief Implementation details for NUM_VAR_ARGS */
 #define NUM_VA_ARGS_LESS_1_IMPL(				\
 	_ignored,						\
 	_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10,		\
 	_11, _12, _13, _14, _15, _16, _17, _18, _19, _20,	\
 	_21, _22, _23, _24, _25, _26, _27, _28, _29, _30,	\
 	_31, _32, _33, _34, _35, _36, _37, _38, _39, _40,	\
 	_41, _42, _43, _44, _45, _46, _47, _48, _49, _50,	\
 	_51, _52, _53, _54, _55, _56, _57, _58, _59, _60,	\
 	_61, _62, N, ...) N
 /**
 * @brief Macro to get the number of arguments in a call variadic macro call.
 * First argument is not counted.
 *
 * param[in]    ...     List of arguments
 *
 * @retval  Number of variadic arguments in the argument list
 */
 #define NUM_VA_ARGS_LESS_1(...) \
 	NUM_VA_ARGS_LESS_1_IMPL(__VA_ARGS__, 63, 62, 61, \
 	60, 59, 58, 57, 56, 55, 54, 53, 52, 51,		 \
 	50, 49, 48, 47, 46, 45, 44, 43, 42, 41,		 \
 	40, 39, 38, 37, 36, 35, 34, 33, 32, 31,		 \
 	30, 29, 28, 27, 26, 25, 24, 23, 22, 21,		 \
 	20, 19, 18, 17, 16, 15, 14, 13, 12, 11,		 \
 	10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, ~)
 /**
 * Macro that process all arguments using given macro
 *
 * @deprecated Use FOR_EACH instead.
 *
 * @param ... Macro name to be used for argument processing followed by
 *            arguments to process. Macro should have following
 *            form: MACRO(argument).
 *
 * @return All arguments processed by given macro
 */
 #define MACRO_MAP(...) __DEPRECATED_MACRO FOR_EACH(__VA_ARGS__)
 /**
 * @brief Mapping macro that pastes results together
 *
 * Like @ref MACRO_MAP(), but pastes the results together into a
 * single token by repeated application of @ref UTIL_CAT().
 *
 * For example, with this macro FOO:
 *
 *     #define FOO(x) item_##x##_
 *
 * MACRO_MAP_CAT(FOO, a, b, c) expands to the token:
 *
 *     item_a_item_b_item_c_
 *
 * @param ... Macro to expand on each argument, followed by its
 *            arguments. (The macro should take exactly one argument.)
 * @return The results of expanding the macro on each argument, all pasted
 *         together
 */
 #define MACRO_MAP_CAT(...) MACRO_MAP_CAT_(__VA_ARGS__)
 #define MACRO_MAP_CAT_(...)						\
 	/* To make sure it works also for 2 arguments in total */	\
 	MACRO_MAP_CAT_N(NUM_VA_ARGS_LESS_1(__VA_ARGS__), __VA_ARGS__)
 /**
 * @brief Mapping macro that pastes a fixed number of results together
 *
 * Similar to @ref MACRO_MAP_CAT(), but expects a fixed number of
 * arguments. If more arguments are given than are expected, the rest
 * are ignored.
 *
 * @param N   Number of arguments to map
 * @param ... Macro to expand on each argument, followed by its
 *            arguments. (The macro should take exactly one argument.)
 * @return The results of expanding the macro on each argument, all pasted
 *         together
 */
 #define MACRO_MAP_CAT_N(N, ...) MACRO_MAP_CAT_N_(N, __VA_ARGS__)
 #define MACRO_MAP_CAT_N_(N, ...) UTIL_CAT(MACRO_MC_, N)(__VA_ARGS__,)
 #define MACRO_MC_0(...)
 #define MACRO_MC_1(m, a, ...)  m(a)
 #define MACRO_MC_2(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_1(m, __VA_ARGS__,))
 #define MACRO_MC_3(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_2(m, __VA_ARGS__,))
 #define MACRO_MC_4(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_3(m, __VA_ARGS__,))
 #define MACRO_MC_5(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_4(m, __VA_ARGS__,))
 #define MACRO_MC_6(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_5(m, __VA_ARGS__,))
 #define MACRO_MC_7(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_6(m, __VA_ARGS__,))
 #define MACRO_MC_8(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_7(m, __VA_ARGS__,))
 #define MACRO_MC_9(m, a, ...)  UTIL_CAT(m(a), MACRO_MC_8(m, __VA_ARGS__,))
 #define MACRO_MC_10(m, a, ...) UTIL_CAT(m(a), MACRO_MC_9(m, __VA_ARGS__,))
 #define MACRO_MC_11(m, a, ...) UTIL_CAT(m(a), MACRO_MC_10(m, __VA_ARGS__,))
 #define MACRO_MC_12(m, a, ...) UTIL_CAT(m(a), MACRO_MC_11(m, __VA_ARGS__,))
 #define MACRO_MC_13(m, a, ...) UTIL_CAT(m(a), MACRO_MC_12(m, __VA_ARGS__,))
 #define MACRO_MC_14(m, a, ...) UTIL_CAT(m(a), MACRO_MC_13(m, __VA_ARGS__,))
 #define MACRO_MC_15(m, a, ...) UTIL_CAT(m(a), MACRO_MC_14(m, __VA_ARGS__,))
--- a/app/src/keymap.c
+++ b/app/src/keymap.c
@ -2,10 +2,57 @@
 #include <logging/log.h>
 LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
 #include <zmk/keymap.h>
 #include <dt-bindings/zmk/keymap-transform.h>
 #include <sys/util.h>
 static u32_t zmk_keymap_layer_state = 0;
 static u8_t zmk_keymap_layer_default = 0;
 #if DT_NODE_HAS_PROP(ZMK_KEYMAP_NODE, transform)
 #define ZMK_KEYMAP_TRANSFORM_NODE DT_PHANDLE(ZMK_KEYMAP_NODE, transform)
 #define ZMK_KEYMAP_LEN DT_PROP_LEN(ZMK_KEYMAP_TRANSFORM_NODE, map)
 #define _TRANSFORM_ENTRY(i, l) \
 	[(KT_ROW(DT_PROP_BY_IDX(ZMK_KEYMAP_TRANSFORM_NODE, map, i)) * ZMK_MATRIX_COLS) + KT_COL(DT_PROP_BY_IDX(ZMK_KEYMAP_TRANSFORM_NODE, map, i))] = DT_PROP_BY_IDX(DT_PHANDLE_BY_IDX(ZMK_KEYMAP_NODE, layers, l), keys, i),
 #define TRANSFORMED_LAYER(idx) \
  { UTIL_LISTIFY(ZMK_KEYMAP_LEN, _TRANSFORM_ENTRY, idx) }
 static zmk_key zmk_keymap[ZMK_KEYMAP_LAYERS_LEN][ZMK_MATRIX_ROWS * ZMK_MATRIX_COLS] = {
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 0)
 	TRANSFORMED_LAYER(0),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 1)
 	TRANSFORMED_LAYER(1),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 2)
 	TRANSFORMED_LAYER(2),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 3)
 	TRANSFORMED_LAYER(3),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 4)
 	TRANSFORMED_LAYER(4),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 5)
 	TRANSFORMED_LAYER(5),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 6)
 	TRANSFORMED_LAYER(6),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 7)
 	TRANSFORMED_LAYER(7),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 8)
 	TRANSFORMED_LAYER(8),
 #endif
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 9)
 	TRANSFORMED_LAYER(9),
 #endif
 };
 #else
 static zmk_key zmk_keymap[ZMK_KEYMAP_LAYERS_LEN][ZMK_MATRIX_ROWS * ZMK_MATRIX_COLS] = {
 #if DT_PROP_HAS_IDX(ZMK_KEYMAP_NODE, layers, 0)
 	DT_PROP_BY_PHANDLE_IDX(ZMK_KEYMAP_NODE, layers, 0, keys),
@ -33,6 +80,8 @@ static zmk_key zmk_keymap[ZMK_KEYMAP_LAYERS_LEN][ZMK_MATRIX_ROWS * ZMK_MATRIX_CO
 #endif
 };
 #endif
 #define SET_LAYER_STATE(layer, state)                \
 	if (layer >= 32)                                 \
 	{                                                \