Add corne keyboard (#3119)

* Fork from helix

* Move rev2 to rev1

* Remove unused settings

* Move split_util to outof rev

* Setup KEYMAP for crkbd

* Remove old image

* Move keymaps directory and glcdfont.c

* Remove AUDIO in keymap

* Show keylog

* Show keylogs

* Show time log

* Remove EISU/KANA

* Use KEYMAP_kc

* Remove iota_gfx_record_user wrapping

* Remove unused settings for layer

* Add keylogger.c

* Fix uppercase letters to lower

* Add timelogger.c

* Default RGBLED_NUM = 27

* Remove unused setting

* Add mode icon reader

* Add matrix_write_ln

* Add layer_state_reader

* Move to lib directory

* Rename functions

* Add host_led_state_reader

* Add logo_reader

* Cleaning of iota_gfx_task

* Fix bugs and add key defines

* Remove unnecessary comments

* Update crkbd readme

* Move libs to lib directories

* Rename KEYMAP to LAYOUT

1 files changed, 33 insertions, 0 deletions

diff --git a/keyboards/crkbd/keymaps/lib/layer_state_reader.c b/keyboards/crkbd/keymaps/lib/layer_state_reader.c
new file mode 100644
index 000000000..f79720d6f
--- /dev/null
+++ b/keyboards/crkbd/keymaps/lib/layer_state_reader.c
@@ -0,0 +1,33 @@
+#include "crkbd.h"
+
+#define L_BASE 0
+#define L_LOWER 8
+#define L_RAISE 16
+#define L_ADJUST 65536
+#define L_ADJUST_TRI 65560
+
+char layer_state_str[40];
+
+char *read_layer_state(void)
+{
+  switch (layer_state)
+  {
+    case L_BASE:
+       snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Default");
+       break;
+    case L_RAISE:
+       snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Raise");
+       break;
+    case L_LOWER:
+       snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Lower");
+       break;
+    case L_ADJUST:
+    case L_ADJUST_TRI:
+       snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Adjust");
+       break;
+    default:
+       snprintf(layer_state_str,sizeof(layer_state_str), "Layer: Undef-%ld", layer_state);
+  }
+
+  return layer_state_str;
+}