Add Keychron C3 Pro (Red & RGB) (#24874)

* Add Keychron C3 Pro variants

* Update to upstream standards

* Apply suggestions from code review

Co-authored-by: jack <0x6a73@protonmail.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

* Reformatted `keyboard.json` for `red`/`rgb` and `c3_pro.c`

* Apply suggestions from code review

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keychron/c3_pro/ansi/red/config.h

Co-authored-by: Daniel <1767914+iamdanielv@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Drashna Jaelre <drashna@live.com>

* Add C Pro V2 variants

* remove boards by accident

---------

Co-authored-by: jack <0x6a73@protonmail.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Daniel <1767914+iamdanielv@users.noreply.github.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

1 files changed, 112 insertions, 0 deletions

diff --git a/keyboards/keychron/c3_pro/c3_pro.c b/keyboards/keychron/c3_pro/c3_pro.c
new file mode 100644
index 0000000000..905eb86f5a
--- /dev/null
+++ b/keyboards/keychron/c3_pro/c3_pro.c
@@ -0,0 +1,112 @@
+/* Copyright 2024 @ Keychron (https://www.keychron.com)
+ *
+ * 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 "c3_pro.h"
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+    if (!process_record_user(keycode, record)) {
+        return false;
+    }
+    switch (keycode) {
+#ifdef RGB_MATRIX_ENABLE
+        case QK_RGB_MATRIX_TOGGLE:
+            if (record->event.pressed) {
+                switch (rgb_matrix_get_flags()) {
+                    case LED_FLAG_ALL: {
+                        rgb_matrix_set_flags(LED_FLAG_NONE);
+                        rgb_matrix_set_color_all(0, 0, 0);
+                    } break;
+                    default: {
+                        rgb_matrix_set_flags(LED_FLAG_ALL);
+                    } break;
+                }
+            }
+            if (!rgb_matrix_is_enabled()) {
+                rgb_matrix_set_flags(LED_FLAG_ALL);
+                rgb_matrix_enable();
+            }
+            return false;
+#endif
+#ifdef LED_MATRIX_ENABLE
+        case QK_LED_MATRIX_TOGGLE:
+            if (record->event.pressed) {
+                switch (led_matrix_get_flags()) {
+                    case LED_FLAG_ALL: {
+                        led_matrix_set_flags(LED_FLAG_NONE);
+                        led_matrix_set_value_all(0);
+                    } break;
+                    default: {
+                        led_matrix_set_flags(LED_FLAG_ALL);
+                    } break;
+                }
+            }
+            if (!led_matrix_is_enabled()) {
+                led_matrix_set_flags(LED_FLAG_ALL);
+                led_matrix_enable();
+            }
+            return false;
+#endif
+        case KC_OSSW:
+            if (record->event.pressed) {
+                default_layer_xor(1U << 0);
+                default_layer_xor(1U << 2);
+                eeconfig_update_default_layer(default_layer_state);
+            }
+            return false;
+        default:
+            return true;
+    }
+}
+
+#if defined(RGB_MATRIX_ENABLE) && defined(CAPS_LOCK_LED_INDEX)
+
+bool rgb_matrix_indicators_advanced_kb(uint8_t led_min, uint8_t led_max) {
+    if (!rgb_matrix_indicators_advanced_user(led_min, led_max)) {
+        return false;
+    }
+    // RGB_MATRIX_INDICATOR_SET_COLOR(index, red, green, blue);
+
+    if (host_keyboard_led_state().caps_lock) {
+        RGB_MATRIX_INDICATOR_SET_COLOR(CAPS_LOCK_LED_INDEX, 255, 255, 255);
+    } else {
+        if (!rgb_matrix_get_flags()) {
+            RGB_MATRIX_INDICATOR_SET_COLOR(CAPS_LOCK_LED_INDEX, 0, 0, 0);
+        }
+    }
+    return true;
+}
+
+#endif // RGB_MATRIX_ENABLE && CAPS_LOCK_LED_INDEX
+
+#if defined(LED_MATRIX_ENABLE) && defined(CAPS_LOCK_LED_INDEX)
+
+bool led_matrix_indicators_advanced_kb(uint8_t led_min, uint8_t led_max) {
+    if (!led_matrix_indicators_advanced_user(led_min, led_max)) {
+        return false;
+    }
+
+    if (host_keyboard_led_state().caps_lock) {
+        led_matrix_set_value(CAPS_LOCK_LED_INDEX, 255);
+
+    } else {
+        if (!led_matrix_get_flags()) {
+            led_matrix_set_value(CAPS_LOCK_LED_INDEX, 0);
+        }
+    }
+    return true;
+}
+
+#endif // LED_MATRIX_ENABLE && CAPS_LOCK_LED_INDEX