[Keyboard] Convert Corne Keyboard to Split Common (#6001)

* [Keyboard] Convert Corne Keyboard to Split Common

* Add VIA Support

* Makes sure that ol(e)d and new OLED implementation can't coexist

* Add licensing header to files

* Add changes based on feedback from foostan

* Fixes

4 files changed, 281 insertions, 0 deletions

diff --git a/keyboards/crkbd/keymaps/default/keymap.c b/keyboards/crkbd/keymaps/default/keymap.c
index 4dd0be8992..a3a9d95351 100644
--- a/keyboards/crkbd/keymaps/default/keymap.c
+++ b/keyboards/crkbd/keymaps/default/keymap.c
@@ -1,3 +1,21 @@
+/*
+Copyright 2019 @foostan
+Copyright 2020 Drashna Jaelre <@drashna>
+
+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
 
 
diff --git a/keyboards/crkbd/keymaps/oled_sample/config.h b/keyboards/crkbd/keymaps/oled_sample/config.h
new file mode 100644
index 0000000000..41568c5916
--- /dev/null
+++ b/keyboards/crkbd/keymaps/oled_sample/config.h
@@ -0,0 +1,48 @@
+/*
+Copyright 2019 @foostan
+Copyright 2020 Drashna Jaelre <@drashna>
+
+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/>.
+*/
+
+
+
+#pragma once
+
+//#define USE_MATRIX_I2C
+#ifdef KEYBOARD_crkbd_rev1_common
+#    undef USE_I2C
+#    define USE_SERIAL
+#endif
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#define USE_SERIAL_PD2
+
+#define TAPPING_FORCE_HOLD
+#define TAPPING_TERM 100
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 27
+#define RGBLIGHT_LIMIT_VAL 120
+#define RGBLIGHT_HUE_STEP 10
+#define RGBLIGHT_SAT_STEP 17
+#define RGBLIGHT_VAL_STEP 17
+
+#define OLED_FONT_H "keyboards/crkbd/lib/glcdfont.c"
diff --git a/keyboards/crkbd/keymaps/oled_sample/keymap.c b/keyboards/crkbd/keymaps/oled_sample/keymap.c
new file mode 100644
index 0000000000..f2d5770b63
--- /dev/null
+++ b/keyboards/crkbd/keymaps/oled_sample/keymap.c
@@ -0,0 +1,208 @@
+/*
+Copyright 2019 @foostan
+Copyright 2020 Drashna Jaelre <@drashna>
+
+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
+
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum crkbd_layers {
+    _QWERTY,
+    _LOWER,
+    _RAISE,
+    _ADJUST,
+};
+
+
+#define RAISE MO(_RAISE)
+#define LOWER MO(_LOWER)
+#define CTLTB CTL_T(KC_TAB)
+#define GUIEI GUI_T(KC_LANG2)
+#define ALTKN ALT_T(KC_LANG1)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_QWERTY] = LAYOUT(
+    KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,     KC_T,                      KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
+    CTLTB,   KC_A,    KC_S,    KC_D,    KC_F,     KC_G,                      KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
+    KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,     KC_B,                      KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,
+                                        GUIEI,    LOWER,   KC_SPC,  KC_ENT,  RAISE,   ALTKN
+  ),
+
+  [_LOWER] = LAYOUT(
+    KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,     KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC,
+    CTLTB,   KC_F1,   KC_F2,   KC_F3,   KC_F4,    KC_F5,                     KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  XXXXXXX,
+    KC_LSFT, KC_F11,  KC_F12,  KC_F13,  KC_F14,   KC_F15,                    KC_F16,  KC_F17,  KC_F18,  KC_F19,  KC_F20,  XXXXXXX,
+                                        GUIEI,    LOWER,   KC_SPC,  KC_ENT,  RAISE,   ALTKN
+  ),
+
+  [_RAISE] = LAYOUT(
+    KC_ESC,  KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                   KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
+    CTLTB,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   KC_MINS, KC_EQL,  KC_LCBR, KC_RCBR, KC_PIPE, KC_GRV,
+    KC_LSFT, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   KC_UNDS, KC_PLUS, KC_LBRC, KC_RBRC, KC_BSLS, KC_TILD,
+                                        GUIEI,   LOWER,   KC_SPC,  KC_ENT,  RAISE,   ALTKN
+
+  ),
+
+  [_ADJUST] = LAYOUT(
+    RESET,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+    RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+    RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+                                        GUIEI,   LOWER,   KC_SPC,  KC_ENT,  RAISE,   ALTKN
+  )
+};
+
+layer_state_t layer_state_set_user(layer_state_t state) {
+    state = update_tri_layer_state(state, _RAISE, _LOWER, _ADJUST);
+    return state;
+}
+
+
+#ifdef OLED_DRIVER_ENABLE
+oled_rotation_t oled_init_user(oled_rotation_t rotation) {
+    if (is_keyboard_master()) {
+        return OLED_ROTATION_270;
+    } else {
+        return rotation;
+    }
+}
+
+void render_crkbd_logo(void) {
+    static const char PROGMEM crkbd_logo[] = {
+        0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94,
+        0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4,
+        0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4,
+        0};
+    oled_write_P(crkbd_logo, false);
+}
+
+#    define KEYLOG_LEN 5
+char     keylog_str[KEYLOG_LEN] = {};
+uint8_t  keylogs_str_idx        = 0;
+uint16_t log_timer              = 0;
+
+const char code_to_name[60] = {
+    ' ', ' ', ' ', ' ', 'a', 'b', 'c', 'd', 'e', 'f',
+    'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
+    'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+    '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
+    'R', 'E', 'B', 'T', '_', '-', '=', '[', ']', '\\',
+    '#', ';', '\'', '`', ',', '.', '/', ' ', ' ', ' '};
+
+void add_keylog(uint16_t keycode) {
+    if ((keycode >= QK_MOD_TAP && keycode <= QK_MOD_TAP_MAX) || (keycode >= QK_LAYER_TAP && keycode <= QK_LAYER_TAP_MAX)) {
+        keycode = keycode & 0xFF;
+    }
+
+    for (uint8_t i = KEYLOG_LEN - 1; i > 0; i--) {
+        keylog_str[i] = keylog_str[i - 1];
+    }
+    if (keycode < 60) {
+        keylog_str[0] = code_to_name[keycode];
+    }
+    keylog_str[KEYLOG_LEN - 1] = 0;
+
+    log_timer = timer_read();
+}
+
+void update_log(void) {
+    if (timer_elapsed(log_timer) > 750) {
+        add_keylog(0);
+    }
+}
+
+void render_keylogger_status(void) {
+    oled_write_P(PSTR("KLogr"), false);
+    oled_write(keylog_str, false);
+}
+
+void render_default_layer_state(void) {
+    oled_write_P(PSTR("Lyout"), false);
+    switch (get_highest_layer(default_layer_state)) {
+        case _QWERTY:
+            oled_write_P(PSTR(" QRTY"), false);
+            break;
+    }
+}
+
+void render_layer_state(void) {
+    oled_write_P(PSTR("LAYER"), false);
+    oled_write_P(PSTR("Lower"), layer_state_is(_LOWER));
+    oled_write_P(PSTR("Raise"), layer_state_is(_RAISE));
+}
+
+void render_keylock_status(uint8_t led_usb_state) {
+    oled_write_P(PSTR("Lock:"), false);
+    oled_write_P(PSTR(" "), false);
+    oled_write_P(PSTR("N"), led_usb_state & (1 << USB_LED_NUM_LOCK));
+    oled_write_P(PSTR("C"), led_usb_state & (1 << USB_LED_CAPS_LOCK));
+    oled_write_ln_P(PSTR("S"), led_usb_state & (1 << USB_LED_SCROLL_LOCK));
+}
+
+void render_mod_status(uint8_t modifiers) {
+    oled_write_P(PSTR("Mods:"), false);
+    oled_write_P(PSTR(" "), false);
+    oled_write_P(PSTR("S"), (modifiers & MOD_MASK_SHIFT));
+    oled_write_P(PSTR("C"), (modifiers & MOD_MASK_CTRL));
+    oled_write_P(PSTR("A"), (modifiers & MOD_MASK_ALT));
+    oled_write_P(PSTR("G"), (modifiers & MOD_MASK_GUI));
+}
+
+void render_bootmagic_status(void) {
+    /* Show Ctrl-Gui Swap options */
+    static const char PROGMEM logo[][2][3] = {
+        {{0x97, 0x98, 0}, {0xb7, 0xb8, 0}},
+        {{0x95, 0x96, 0}, {0xb5, 0xb6, 0}},
+    };
+    oled_write_P(PSTR("BTMGK"), false);
+    oled_write_P(PSTR(" "), false);
+    oled_write_P(logo[0][0], !keymap_config.swap_lctl_lgui);
+    oled_write_P(logo[1][0], keymap_config.swap_lctl_lgui);
+    oled_write_P(PSTR(" "), false);
+    oled_write_P(logo[0][1], !keymap_config.swap_lctl_lgui);
+    oled_write_P(logo[1][1], keymap_config.swap_lctl_lgui);
+    oled_write_P(PSTR(" NKRO"), keymap_config.nkro);
+}
+
+void render_status_main(void) {
+    /* Show Keyboard Layout  */
+    render_default_layer_state();
+    render_keylock_status(host_keyboard_leds());
+    render_mod_status(get_mods());
+    render_bootmagic_status();
+
+    render_keylogger_status();
+}
+
+void oled_task_user(void) {
+    update_log();
+    if (is_master) {
+        render_status_main();  // Renders the current keyboard state (layer, lock, caps, scroll, etc)
+    } else {
+        render_crkbd_logo();
+    }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    if (record->event.pressed) {
+        add_keylog(keycode);
+    }
+    return true;
+}
+#endif
diff --git a/keyboards/crkbd/keymaps/oled_sample/rules.mk b/keyboards/crkbd/keymaps/oled_sample/rules.mk
new file mode 100644
index 0000000000..fb480bba88
--- /dev/null
+++ b/keyboards/crkbd/keymaps/oled_sample/rules.mk
@@ -0,0 +1,7 @@
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+RGBLIGHT_ENABLE = yes       # Enable WS2812 RGB underlight.
+OLED_DRIVER_ENABLE = yes