From 57158cc3bcd169bc76785099fe2ded359d94eaa2 Mon Sep 17 00:00:00 2001
From: Drashna Jaelre <drashna@live.com>
Date: Mon, 24 May 2021 23:23:20 -0700
Subject: [Keyboard] Corne - Remove legacy revision support (#12226)

---
 keyboards/crkbd/keymaps/madhatter/config.h |  1 +
 keyboards/crkbd/keymaps/madhatter/keymap.c | 14 ++++++++------
 keyboards/crkbd/keymaps/madhatter/rules.mk |  3 +++
 3 files changed, 12 insertions(+), 6 deletions(-)

(limited to 'keyboards/crkbd/keymaps/madhatter')

diff --git a/keyboards/crkbd/keymaps/madhatter/config.h b/keyboards/crkbd/keymaps/madhatter/config.h
index 899fde008d..bcf4e05005 100644
--- a/keyboards/crkbd/keymaps/madhatter/config.h
+++ b/keyboards/crkbd/keymaps/madhatter/config.h
@@ -29,6 +29,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // #define EE_HANDS
 
 #define SSD1306OLED
+#define USE_SSD_I2C
 
 #define USE_SERIAL_PD2
 
diff --git a/keyboards/crkbd/keymaps/madhatter/keymap.c b/keyboards/crkbd/keymaps/madhatter/keymap.c
index 57a522deb4..c228a7b573 100644
--- a/keyboards/crkbd/keymaps/madhatter/keymap.c
+++ b/keyboards/crkbd/keymaps/madhatter/keymap.c
@@ -17,8 +17,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include QMK_KEYBOARD_H
-
-extern uint8_t is_master;
+#ifdef SSD1306OLED
+#    include "ssd1306.h"
+#    include <string.h>
+#endif
 
 enum corny_layers {
   _QWERTY,
@@ -108,7 +110,7 @@ void matrix_init_user(void) {
     #endif
     //SSD1306 OLED init, make sure to add #define SSD1306OLED in config.h
     #ifdef SSD1306OLED
-        iota_gfx_init(!has_usb());   // turns on the display
+        iota_gfx_init();   // turns on the display
     #endif
 }
 
@@ -132,10 +134,10 @@ void matrix_scan_user(void) {
 }
 
 void matrix_render_user(struct CharacterMatrix *matrix) {
-  if (is_master) {
+  if (is_keyboard_master()) {
     // If you want to change the display of OLED, you need to change here
-    matrix_write_ln(matrix, read_layer_state());
-    matrix_write_ln(matrix, read_keylog());
+    matrix_write(matrix, read_layer_state());
+    matrix_write(matrix, read_keylog());
     //matrix_write_ln(matrix, read_keylogs());
     //matrix_write_ln(matrix, read_mode_icon(keymap_config.swap_lalt_lgui));
     //matrix_write_ln(matrix, read_host_led_state());
diff --git a/keyboards/crkbd/keymaps/madhatter/rules.mk b/keyboards/crkbd/keymaps/madhatter/rules.mk
index f84e5b2af8..489b16ef1c 100644
--- a/keyboards/crkbd/keymaps/madhatter/rules.mk
+++ b/keyboards/crkbd/keymaps/madhatter/rules.mk
@@ -8,3 +8,6 @@ SRC +=  ./lib/glcdfont.c \
         # ./lib/mode_icon_reader.c \
         # ./lib/host_led_state_reader.c \
         # ./lib/timelogger.c \
+
+VPATH += keyboards/crkbd/lib
+LIB_SRC += ssd1306.c i2c.c
-- 
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