From 710937e4ef1e14d82261fc439aa6fcfcdbd64bf5 Mon Sep 17 00:00:00 2001
From: Kosuke Adachi <ks@fstn.jp>
Date: Sat, 9 Jun 2018 07:28:28 +0900
Subject: 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
---
 keyboards/crkbd/split_util.c | 71 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 keyboards/crkbd/split_util.c

(limited to 'keyboards/crkbd/split_util.c')

diff --git a/keyboards/crkbd/split_util.c b/keyboards/crkbd/split_util.c
new file mode 100644
index 0000000000..8bc064174e
--- /dev/null
+++ b/keyboards/crkbd/split_util.c
@@ -0,0 +1,71 @@
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/power.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include "split_util.h"
+#include "matrix.h"
+#include "keyboard.h"
+#include "config.h"
+
+#ifdef USE_MATRIX_I2C
+#  include "i2c.h"
+#else
+#  include "serial.h"
+#endif
+
+volatile bool isLeftHand = true;
+
+static void setup_handedness(void) {
+  #ifdef EE_HANDS
+    isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
+  #else
+    // I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
+    #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
+      isLeftHand = !has_usb();
+    #else
+      isLeftHand = has_usb();
+    #endif
+  #endif
+}
+
+static void keyboard_master_setup(void) {
+
+#ifdef USE_MATRIX_I2C
+    i2c_master_init();
+#else
+    serial_master_init();
+#endif
+}
+
+static void keyboard_slave_setup(void) {
+
+#ifdef USE_MATRIX_I2C
+    i2c_slave_init(SLAVE_I2C_ADDRESS);
+#else
+    serial_slave_init();
+#endif
+}
+
+bool has_usb(void) {
+   USBCON |= (1 << OTGPADE); //enables VBUS pad
+   _delay_us(5);
+   return (USBSTA & (1<<VBUS));  //checks state of VBUS
+}
+
+void split_keyboard_setup(void) {
+   setup_handedness();
+
+   if (has_usb()) {
+      keyboard_master_setup();
+   } else {
+      keyboard_slave_setup();
+   }
+   sei();
+}
+
+// this code runs before the usb and keyboard is initialized
+void matrix_setup(void) {
+    split_keyboard_setup();
+}
-- 
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