[Keyboard] Add Lain keyboard (#16345)

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

2 files changed, 84 insertions, 0 deletions

diff --git a/keyboards/dm9records/lain/keymaps/default/keymap.c b/keyboards/dm9records/lain/keymaps/default/keymap.c
new file mode 100644
index 0000000000..655e3211b2
--- /dev/null
+++ b/keyboards/dm9records/lain/keymaps/default/keymap.c
@@ -0,0 +1,79 @@
+// Copyright 2022 Takuya Urakawa @hsgw (dm9records.com, 5z6p.com)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+enum layers { BASE, NUM, FUNC, CONF };
+enum custom_keycodes { LED_EN = SAFE_RANGE };
+
+// clang-format off
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    [BASE] = LAYOUT(
+        KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_LBRC,   KC_Y,   KC_U,    KC_I,    KC_O,    KC_P,     KC_BSPC,
+        KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_RBRC,   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_INS, KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,
+        KC_LCTL,                   KC_LALT, KC_LGUI, MO(NUM), KC_SPC,    KC_ENT, MO(FUNC), KC_RALT, KC_MENU, KC_RCTL,  KC_RSFT
+    ),
+    [NUM] = LAYOUT(
+        KC_DEL,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,      KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS,  KC_EQL,
+        KC_CAPS, S(KC_1), S(KC_2), S(KC_3), S(KC_4), S(KC_5), S(KC_6),   S(KC_7), S(KC_8), S(KC_9), S(KC_0), S(KC_MINS),S(KC_EQL),
+        _______, _______, _______, _______, _______, _______,            KC_PSCR, _______, _______, _______, _______,  KC_BSLS,
+        _______,                   _______, _______, _______, _______,   _______, _______, _______, _______, _______,  _______
+    ),
+    [FUNC] = LAYOUT(
+        KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,     KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,
+        _______, _______, _______, _______, _______, _______, _______,   KC_LEFT, KC_DOWN, KC_UP,   KC_RIGHT,_______, _______,
+        _______, _______, _______, _______, _______, _______,            _______, _______, _______, _______, _______, _______,
+        _______,                   _______, _______, _______, _______,   _______, _______, _______, _______, _______, _______
+    ),
+    [CONF] = LAYOUT(
+        RESET,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+        LED_EN,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,            XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+        XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
+    )
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case LED_EN:
+            if (record->event.pressed) {
+                lain_enable_leds_toggle();
+            }
+            return false;
+        default:
+            break;
+    }
+    return true;
+}
+
+// clang-format on
+
+layer_state_t layer_state_set_user(layer_state_t state) {
+    layer_state_t computed = update_tri_layer_state(state, NUM, FUNC, CONF);
+    switch (get_highest_layer(computed)) {
+        case NUM:
+            lain_set_led(1, 1);
+            lain_set_led(2, 0);
+            break;
+        case FUNC:
+            lain_set_led(1, 0);
+            lain_set_led(2, 1);
+            break;
+        case CONF:
+            lain_set_led(1, 1);
+            lain_set_led(2, 1);
+            break;
+        default:
+            lain_set_led(1, 0);
+            lain_set_led(2, 0);
+            break;
+    }
+    return computed;
+}
+
+bool led_update_user(led_t led_state) {
+    lain_set_led(0, led_state.caps_lock);
+    return false;
+}
diff --git a/keyboards/dm9records/lain/keymaps/default/readme.md b/keyboards/dm9records/lain/keymaps/default/readme.md
new file mode 100644
index 0000000000..2f59c80ebc
--- /dev/null
+++ b/keyboards/dm9records/lain/keymaps/default/readme.md
@@ -0,0 +1,5 @@
+# The default keymap for lain
+
+## Leds setting
+1: CAPS LOCK   
+2-3: Layor indicator