9 files changed, 145 insertions, 9 deletions
diff --git a/keyboards/splitkb/kyria/rev1/config.h b/keyboards/splitkb/kyria/rev1/config.h
index a330dfc10f..e19e8dfa9c 100644
--- a/keyboards/splitkb/kyria/rev1/config.h
+++ b/keyboards/splitkb/kyria/rev1/config.h
@@ -57,18 +57,31 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /*
  * Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
  */
-#define SOFT_SERIAL_PIN D2
 
-#define RGB_DI_PIN      D3
+#if defined(CONVERT_TO_PROTON_C)
+#    define SERIAL_USART_FULL_DUPLEX      // Enable full duplex operation mode.
+#    define SERIAL_USART_PIN_SWAP         // Swap TX and RX pins if keyboard is master halve.
+#    define SERIAL_USART_DRIVER      SD1  // USART driver of TX pin. default: SD1
+#    define SERIAL_USART_TX_PAL_MODE 7    // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 7
+#    define SERIAL_USART_TX_PIN      D3
+#    define SERIAL_USART_RX_PIN      D2
+
+#    define RGB_DI_PIN               PAL_LINE(GPIOA, 3)
+#    define WS2812_PWM_DRIVER        PWMD2                  // default: PWMD2
+#    define WS2812_PWM_CHANNEL       4                      // default: 2
+#    define WS2812_PWM_PAL_MODE      1                      // Pin "alternate function", see the respective datasheet for the appropriate values for your MCU. default: 2
+#    define WS2812_DMA_STREAM        STM32_DMA1_STREAM2     // DMA Stream for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#    define WS2812_DMA_CHANNEL       2                      // DMA Channel for TIMx_UP, see the respective reference manual for the appropriate values for your MCU.
+#    define WS2812_DMAMUX_ID         STM32_DMAMUX1_TIM2_UP  // DMAMUX configuration for TIMx_UP -- only required if your MCU has a DMAMUX peripheral, see the respective reference manual for the appropriate values for your MCU.
+#else
+#    define RGB_DI_PIN D3
+#    define SOFT_SERIAL_PIN D2
+#endif
+
 #define RGBLED_SPLIT \
     { 10, 10 }
 #define RGBLED_NUM 20
 
-/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
-#define LOCKING_SUPPORT_ENABLE
-/* Locking resynchronize hack */
-#define LOCKING_RESYNC_ENABLE
-
 #ifdef OLED_ENABLE
 #    define OLED_DISPLAY_128X64
 #    define SPLIT_OLED_ENABLE
diff --git a/keyboards/splitkb/kyria/rev1/proton_c/chconf.h b/keyboards/splitkb/kyria/rev1/proton_c/chconf.h
new file mode 100644
index 0000000000..7ca1d3d243
--- /dev/null
+++ b/keyboards/splitkb/kyria/rev1/proton_c/chconf.h
@@ -0,0 +1,22 @@
+/* Copyright 2020 QMK
+ *
+ * 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 CH_CFG_ST_RESOLUTION 16
+#define CH_CFG_ST_FREQUENCY  10000
+
+#include_next "chconf.h"
diff --git a/keyboards/splitkb/kyria/rev1/proton_c/halconf.h b/keyboards/splitkb/kyria/rev1/proton_c/halconf.h
new file mode 100644
index 0000000000..99f2e11b9a
--- /dev/null
+++ b/keyboards/splitkb/kyria/rev1/proton_c/halconf.h
@@ -0,0 +1,22 @@
+/* Copyright 2020 QMK
+ *
+ *  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 3 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 <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#define HAL_USE_I2C    TRUE
+#define HAL_USE_PWM    TRUE
+#define HAL_USE_SERIAL TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/splitkb/kyria/rev1/proton_c/mcuconf.h b/keyboards/splitkb/kyria/rev1/proton_c/mcuconf.h
new file mode 100644
index 0000000000..58348af390
--- /dev/null
+++ b/keyboards/splitkb/kyria/rev1/proton_c/mcuconf.h
@@ -0,0 +1,29 @@
+/* Copyright 2020 QMK
+ *
+ *  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 3 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 <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_PWM_USE_TIM2
+#define STM32_PWM_USE_TIM2 TRUE
+#undef STM32_PWM_USE_TIM3
+#define STM32_PWM_USE_TIM3 FALSE
+
+#undef STM32_SERIAL_USE_USART1
+#define STM32_SERIAL_USE_USART1 TRUE
+
+#undef STM32_ST_USE_TIMER
+#define STM32_ST_USE_TIMER 3
diff --git a/keyboards/splitkb/kyria/rev1/proton_c/proton_c.c b/keyboards/splitkb/kyria/rev1/proton_c/proton_c.c
new file mode 100644
index 0000000000..628fabb2e5
--- /dev/null
+++ b/keyboards/splitkb/kyria/rev1/proton_c/proton_c.c
@@ -0,0 +1,17 @@
+/* Copyright 2019 Thomas Baart <thomas@splitkb.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 "proton_c.h"
diff --git a/keyboards/splitkb/kyria/rev1/proton_c/proton_c.h b/keyboards/splitkb/kyria/rev1/proton_c/proton_c.h
new file mode 100644
index 0000000000..718f5636ff
--- /dev/null
+++ b/keyboards/splitkb/kyria/rev1/proton_c/proton_c.h
@@ -0,0 +1,19 @@
+/* Copyright 2019 Thomas Baart <thomas@splitkb.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/>.
+ */
+
+#pragma once
+
+#include "rev1.h"
diff --git a/keyboards/splitkb/kyria/rev1/proton_c/rules.mk b/keyboards/splitkb/kyria/rev1/proton_c/rules.mk
new file mode 100644
index 0000000000..9e0942398f
--- /dev/null
+++ b/keyboards/splitkb/kyria/rev1/proton_c/rules.mk
@@ -0,0 +1,5 @@
+WS2812_DRIVER = pwm
+SERIAL_DRIVER = usart
+AUDIO_ENABLE = no
+LTO_ENABLE = no
+CONVERT_TO_PROTON_C = yes
diff --git a/keyboards/splitkb/kyria/rev1/rev1.c b/keyboards/splitkb/kyria/rev1/rev1.c
index ac82f7373d..b2641fb40e 100644
--- a/keyboards/splitkb/kyria/rev1/rev1.c
+++ b/keyboards/splitkb/kyria/rev1/rev1.c
@@ -56,9 +56,14 @@ led_config_t g_led_config = { {
 #endif
 
 #ifdef OLED_ENABLE
-__attribute__((weak)) oled_rotation_t oled_init_user(oled_rotation_t rotation) { return OLED_ROTATION_180; }
+oled_rotation_t oled_init_kb(oled_rotation_t rotation) {
+    return OLED_ROTATION_180;
+}
 
-__attribute__((weak)) void oled_task_user(void) {
+bool oled_task_kb(void) {
+    if (!oled_task_user()) {
+        return false;
+    }
     if (is_keyboard_master()) {
         // QMK Logo and version information
         // clang-format off
@@ -119,6 +124,7 @@ __attribute__((weak)) void oled_task_user(void) {
         // clang-format on
         oled_write_raw_P(kyria_logo, sizeof(kyria_logo));
     }
+    return false;
 }
 #endif
 
diff --git a/keyboards/splitkb/kyria/rev1/rev1.h b/keyboards/splitkb/kyria/rev1/rev1.h
index bf9864fe36..8a5fbeb21d 100644
--- a/keyboards/splitkb/kyria/rev1/rev1.h
+++ b/keyboards/splitkb/kyria/rev1/rev1.h
@@ -16,6 +16,9 @@
 #pragma once
 
 #include "kyria.h"
+#ifdef KEYBOARD_splitkb_kyria_rev1_proton_c
+#    include "proton_c.h"
+#endif
 
 /* This a shortcut to help you visually see your layout.
  *