From d8b9796a32b9e7105e0af485d697886f230c094f Mon Sep 17 00:00:00 2001
From: toinux <toinux@gmail.com>
Date: Fri, 22 Apr 2022 09:41:54 +0200
Subject: [Keymap] Toinux's crkbd keymap and userspace (#16437)

---
 keyboards/crkbd/keymaps/toinux/oled.c | 112 ++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 keyboards/crkbd/keymaps/toinux/oled.c

(limited to 'keyboards/crkbd/keymaps/toinux/oled.c')

diff --git a/keyboards/crkbd/keymaps/toinux/oled.c b/keyboards/crkbd/keymaps/toinux/oled.c
new file mode 100644
index 0000000000..df2a693d8d
--- /dev/null
+++ b/keyboards/crkbd/keymaps/toinux/oled.c
@@ -0,0 +1,112 @@
+/* Copyright 2022 @toinux
+  *
+  * 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 QMK_KEYBOARD_H
+#include "keycodes.h"
+#include "oled.h"
+
+oled_rotation_t oled_init_user(oled_rotation_t rotation) {
+  if (!is_keyboard_master()) {
+    return OLED_ROTATION_180;  // flips the display 180 degrees if offhand
+  }
+  return rotation;
+}
+
+
+void oled_render_mod_status(void) {
+
+    const uint8_t modifiers = get_mods() | get_oneshot_mods();
+
+    for (uint8_t i = 0; i < 2; i++) {
+        oled_set_cursor(9,i);
+        oled_write_P(gui_icon[(modifiers & MOD_MASK_GUI) ? 1 : 0][i], false);
+        oled_write_P(ctrl_icon[(modifiers & MOD_MASK_CTRL) ? 1 : 0][i], false);
+        oled_set_cursor(9,i+2);
+        oled_write_P(alt_icon[(modifiers & MOD_MASK_ALT) ? 1 : 0][i], false);
+        oled_write_P(shift_icon[(modifiers & MOD_MASK_SHIFT) ? 1 : 0][i], false);
+    }
+
+}
+
+void oled_render_layer_state(void) {
+
+    char c = 0x9F - get_highest_layer(layer_state|default_layer_state);
+
+    oled_set_cursor(20,0);
+    oled_write_char(0X00, false);
+
+    oled_set_cursor(20,1);
+    oled_write_char(c, false);
+    c += 32;
+    oled_set_cursor(20,2);
+    oled_write_char(c, false);
+    c += 32;
+    oled_set_cursor(20,3);
+    oled_write_char(c, false);
+
+}
+
+void oled_render_led_state(void) {
+    // oled_advance_page(false) instead of oled_write_ln_P to not break OLED_TIMEOUT
+    oled_write_P(PSTR("NUM"), host_keyboard_led_state().num_lock);
+    oled_advance_page(false);
+    oled_write_P(PSTR("CAP"), host_keyboard_led_state().caps_lock);
+    oled_advance_page(false);
+    oled_write_P(PSTR("SCL"), host_keyboard_led_state().scroll_lock);
+    oled_advance_page(false);
+}
+
+uint8_t last_row = 0;
+uint8_t last_col = 0;
+
+void set_keylog(uint16_t keycode, keyrecord_t *record) {
+  last_row = record->event.key.row;
+  last_col = record->event.key.col;
+}
+
+void oled_render_keylog(void) {
+    oled_write_char(last_row + '0', false);
+    oled_write_char('x', false);
+    oled_write_char(last_col + '0', false);
+}
+
+void oled_render_logo(void) {
+    static const char PROGMEM kpu_logo[][3] = {
+        {0x82, 0x83, 0},
+        {0x80, 0x81, 0},
+        {0xa0, 0xa1, 0},
+        {0xc0, 0xc1, 0}
+    };
+    for (uint8_t i = 0; i < 4; i++) {
+        oled_write_ln_P(kpu_logo[i], false);
+    }
+
+}
+
+bool oled_task_user(void) {
+    if (is_keyboard_master ()) {
+        oled_render_led_state();
+        oled_render_keylog();
+        oled_render_mod_status();
+        oled_render_layer_state();
+    } else {
+        oled_render_logo();
+        oled_scroll_right();
+        oled_scroll_set_speed(4);
+    }
+    return false;
+}
-- 
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