1 files changed, 78 insertions, 0 deletions

diff --git a/keyboards/acheron/elongate/delta/delta.c b/keyboards/acheron/elongate/delta/delta.c
new file mode 100755
index 000000000..520dde4e2
--- /dev/null
+++ b/keyboards/acheron/elongate/delta/delta.c
@@ -0,0 +1,78 @@
+/* Copyright 2021 Gondolindrim
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "delta.h"
+
+#define LED_PIN_ON_STATE 1
+// Inits all indicator LEDs as push-pull outputs
+void led_init_ports(void) {
+    palSetLineMode(LED1_PIN, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetLineMode(LED2_PIN, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetLineMode(LED3_PIN, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetLineMode(LED4_PIN, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetLineMode(LED5_PIN, PAL_MODE_OUTPUT_PUSHPULL);
+    palSetLineMode(LED6_PIN, PAL_MODE_OUTPUT_PUSHPULL);
+}
+
+// This function updates LEDs 1, 2 and 3 according to num, caps and scroll lock states
+bool led_update_kb(led_t led_state) {
+    bool res = led_update_user(led_state);
+    if(res) {
+        writePin(LED1_PIN, !led_state.num_lock);
+        writePin(LED2_PIN, !led_state.caps_lock);
+        writePin(LED3_PIN, !led_state.scroll_lock);
+    }
+    return res;
+}
+
+// Turns off all bottom LEDs
+void turn_off_bottom_leds(void){
+        writePin(LED4_PIN, 1);
+        writePin(LED5_PIN, 1);
+        writePin(LED6_PIN, 1);
+}
+
+/*
+Here the bottom LEDs get updated. The idea being that LED4 is lit when the default layer is active, LED5 when layer 1 is active and LED6 when layer 2.
+Before updating, however, all bottom LEDs are turned off.
+*/
+layer_state_t layer_state_set_kb(layer_state_t state) {
+    turn_off_bottom_leds();
+    switch (get_highest_layer(state)) {
+// The base layer, or layer zero, will be handled by the default case.
+    case 1:
+        writePin(LED4_PIN, 1);
+        writePin(LED5_PIN, 0);
+        writePin(LED6_PIN, 1);
+        break;
+    case 2:
+        writePin(LED4_PIN, 1);
+        writePin(LED5_PIN, 1);
+        writePin(LED6_PIN, 0);
+        break;
+    default:
+        writePin(LED4_PIN, 0);
+        writePin(LED5_PIN, 1);
+        writePin(LED6_PIN, 1);
+        break;
+    }
+  return state;
+}
+
+// Since the keyboard starts at layer 0, the init function starts LED4 as lit up.
+void keyboard_post_init_kb(void){
+        writePin(LED4_PIN, 0);
+}