[Keyboard] Add Lain keyboard (#16345)

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

1 files changed, 49 insertions, 0 deletions

diff --git a/keyboards/dm9records/lain/lain.c b/keyboards/dm9records/lain/lain.c
new file mode 100644
index 0000000000..cb8354e5c2
--- /dev/null
+++ b/keyboards/dm9records/lain/lain.c
@@ -0,0 +1,49 @@
+// Copyright 2022 Takuya Urakawa @hsgw (dm9records.com, 5z6p.com)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "lain.h"
+
+keyboard_config_t lain_config;
+
+static const pin_t leds[LED_NUM]       = LED_PINS;
+bool               led_states[LED_NUM] = {0};
+
+void lain_eeconfig_update_kb(void) { eeconfig_update_kb(lain_config.raw); }
+
+void lain_set_led(uint8_t no, bool flag) {
+    led_states[no] = flag;
+    writePin(leds[no], lain_config.led_enabled ? flag : false);
+}
+
+void lain_enable_leds(bool flag) {
+    lain_config.led_enabled = flag;
+    lain_eeconfig_update_kb();
+
+    for (int i = 0; i < LED_NUM; i++) {
+        writePin(leds[i], lain_config.led_enabled ? led_states[i] : false);
+    }
+}
+
+void lain_enable_leds_toggle(void) { lain_enable_leds(!lain_config.led_enabled); }
+
+void led_init_ports(void) {
+    for (uint8_t i = 0; i < LED_NUM; i++) {
+        setPinOutput(leds[i]);
+        lain_set_led(leds[i], 0);
+    }
+}
+
+void eeconfig_init_kb(void) {
+    // set default config
+    lain_config.led_enabled = true;
+    lain_eeconfig_update_kb();
+
+    eeconfig_init_user();
+}
+
+void keyboard_post_init_kb(void) {
+    // read stored config
+    lain_config.raw = eeconfig_read_kb();
+
+    keyboard_post_init_user();
+}