Serial refactor (#11521)

55 files changed, 136 insertions, 516 deletions

diff --git a/keyboards/40percentclub/ut47/config.h b/keyboards/40percentclub/ut47/config.h
index 197d6cd181..9622f58bb3 100644
--- a/keyboards/40percentclub/ut47/config.h
+++ b/keyboards/40percentclub/ut47/config.h
@@ -54,25 +54,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* Enable GNAP matrix serial output */
 #define GNAP_ENABLE
-
-/* USART configuration */
-#ifdef __AVR_ATmega32U4__
-#      define SERIAL_UART_BAUD 9600
-#      define SERIAL_UART_DATA UDR1
-#      define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
-#      define SERIAL_UART_RXD_VECT USART1_RX_vect
-#      define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
-#      define SERIAL_UART_INIT() do { \
-            /* baud rate */ \
-            UBRR1L = SERIAL_UART_UBRR; \
-            /* baud rate */ \
-            UBRR1H = SERIAL_UART_UBRR >> 8; \
-            /* enable TX */ \
-            UCSR1B = _BV(TXEN1); \
-            /* 8-bit data */ \
-            UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-            sei(); \
-        } while(0)
-#   else
-#       error "USART configuration is needed."
-#endif
diff --git a/keyboards/centromere/centromere.c b/keyboards/centromere/centromere.c
index 8800e2ce6a..269c60fd75 100644
--- a/keyboards/centromere/centromere.c
+++ b/keyboards/centromere/centromere.c
@@ -1,9 +1,5 @@
 #include "centromere.h"
 
-void uart_init(void) {
-	SERIAL_UART_INIT();
-}
-
 void led_init(void) {
 #if MCU == atmega32u2
     setPinOutput(C4); // Set red LED pin as output
@@ -32,7 +28,6 @@ void matrix_init_kb(void) {
 	// put your keyboard start-up code here
 	// runs once when the firmware starts up
 	matrix_init_user();
-	uart_init();
 	led_init();
 }
 
diff --git a/keyboards/centromere/config.h b/keyboards/centromere/config.h
index 0a908f60f9..e502e2534b 100644
--- a/keyboards/centromere/config.h
+++ b/keyboards/centromere/config.h
@@ -59,17 +59,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 500000
-#define SERIAL_UART_DATA UDR1
-#define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
-#define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
-#define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+#define SERIAL_UART_INIT_CUSTOM       \
+    /* enable TX and RX */            \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */                  \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10);
diff --git a/keyboards/centromere/matrix.c b/keyboards/centromere/matrix.c
index c5fc8db6ce..5ca083b435 100644
--- a/keyboards/centromere/matrix.c
+++ b/keyboards/centromere/matrix.c
@@ -26,6 +26,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"
 #include "matrix.h"
 #include "timer.h"
+#include "protocol/serial.h"
 
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
@@ -79,12 +80,11 @@ uint8_t matrix_cols(void) {
 void matrix_init(void) {
 
     matrix_init_quantum();
+    serial_init();
 }
 
 uint8_t matrix_scan(void)
 {
-    SERIAL_UART_INIT();
-
     uint32_t timeout = 0;
 
     //the s character requests the RF remote slave to send the matrix information
diff --git a/keyboards/centromere/rules.mk b/keyboards/centromere/rules.mk
index f08f6e6ebd..2469d244a6 100644
--- a/keyboards/centromere/rules.mk
+++ b/keyboards/centromere/rules.mk
@@ -31,14 +31,7 @@ MIDI_ENABLE = no 		# MIDI controls
 UNICODE_ENABLE = yes 		# Unicode
 BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
 
-USB = /dev/ttyACM0
-
-# upload: build
-# 	$(CENTROMERE_UPLOAD_COMMAND)
-
-OPT_DEFS += -DCENTROMERE_PROMICRO
-
 # # project specific files
-SRC = matrix.c
+SRC += matrix.c serial_uart.c
 
 LAYOUTS = split_3x5_3 split_3x6_3
diff --git a/keyboards/chimera_ergo/chimera_ergo.c b/keyboards/chimera_ergo/chimera_ergo.c
index 29470f9080..47653c2e4b 100644
--- a/keyboards/chimera_ergo/chimera_ergo.c
+++ b/keyboards/chimera_ergo/chimera_ergo.c
@@ -1,9 +1,5 @@
 #include "chimera_ergo.h"
 
-void uart_init(void) {
-	SERIAL_UART_INIT();
-}
-
 void led_init(void) {
 	DDRD  |= (1<<1);
 	PORTD |= (1<<1);
@@ -16,16 +12,5 @@ void matrix_init_kb(void) {
 	// put your keyboard start-up code here
 	// runs once when the firmware starts up
 	matrix_init_user();
-	uart_init();
 	led_init();
 }
-
-void matrix_scan_kb(void) {
-	// put your looping keyboard code here
-	// runs every cycle (a lot)
-	matrix_scan_user();
-}
-
-void led_set_kb(uint8_t usb_led) {
-
-}
diff --git a/keyboards/chimera_ergo/config.h b/keyboards/chimera_ergo/config.h
index 262f287a50..4021cdcd50 100644
--- a/keyboards/chimera_ergo/config.h
+++ b/keyboards/chimera_ergo/config.h
@@ -60,19 +60,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
-#define SERIAL_UART_DATA UDR1
-#define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
-#define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
-#define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+#define SERIAL_UART_INIT_CUSTOM       \
+    /* enable TX and RX */            \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */                  \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10);
 
 #endif
diff --git a/keyboards/chimera_ergo/matrix.c b/keyboards/chimera_ergo/matrix.c
index d512a51d97..112b9a40d1 100644
--- a/keyboards/chimera_ergo/matrix.c
+++ b/keyboards/chimera_ergo/matrix.c
@@ -26,6 +26,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"
 #include "matrix.h"
 #include "timer.h"
+#include "protocol/serial.h"
 
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
@@ -88,12 +89,11 @@ uint8_t matrix_cols(void) {
 void matrix_init(void) {
 
     matrix_init_quantum();
+    serial_init();
 }
 
 uint8_t matrix_scan(void)
 {
-    SERIAL_UART_INIT();
-
     uint32_t timeout = 0;
 
     //the s character requests the RF slave to send the matrix
diff --git a/keyboards/chimera_ergo/rules.mk b/keyboards/chimera_ergo/rules.mk
index f37d14107b..01d5c3c70c 100644
--- a/keyboards/chimera_ergo/rules.mk
+++ b/keyboards/chimera_ergo/rules.mk
@@ -28,12 +28,5 @@ NKRO_ENABLE = yes		# USB Nkey Rollover - not yet supported in LUFA
 UNICODE_ENABLE = YES 		# Unicode
 # BLUETOOTH_ENABLE = yes # Enable Bluetooth with the Adafruit EZ-Key HID
 
-
-OPT_DEFS += -DCHIMERA_ERGO_PROMICRO
-CHIMERA_ERGO_UPLOAD_COMMAND = while [ ! -r $(USB) ]; do sleep 1; done; \
-                         avrdude -p $(MCU) -c avr109 -U flash:w:$(TARGET).hex -P $(USB)
-
 # # project specific files
-SRC = matrix.c
-
-USB = /dev/ttyACM0
+SRC += matrix.c serial_uart.c
diff --git a/keyboards/chimera_ls/chimera_ls.c b/keyboards/chimera_ls/chimera_ls.c
index 588b02b2d1..f88e9a4f12 100644
--- a/keyboards/chimera_ls/chimera_ls.c
+++ b/keyboards/chimera_ls/chimera_ls.c
@@ -1,9 +1,5 @@
 #include "chimera_ls.h"
 
-void uart_init(void) {
-	SERIAL_UART_INIT();
-}
-
 void led_init(void) {
 	DDRD  |= (1<<1);
 	PORTD |= (1<<1);
@@ -16,16 +12,5 @@ void matrix_init_kb(void) {
 	// put your keyboard start-up code here
 	// runs once when the firmware starts up
 	matrix_init_user();
-	uart_init();
 	led_init();
 }
-
-void matrix_scan_kb(void) {
-	// put your looping keyboard code here
-	// runs every cycle (a lot)
-	matrix_scan_user();
-}
-
-void led_set_kb(uint8_t usb_led) {
-
-}
diff --git a/keyboards/chimera_ls/config.h b/keyboards/chimera_ls/config.h
index 87e9196095..d9c14a3fce 100644
--- a/keyboards/chimera_ls/config.h
+++ b/keyboards/chimera_ls/config.h
@@ -60,19 +60,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
-#define SERIAL_UART_DATA UDR1
-#define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
-#define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
-#define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+#define SERIAL_UART_INIT_CUSTOM       \
+    /* enable TX and RX */            \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */                  \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10);
 
 #endif
diff --git a/keyboards/chimera_ls/matrix.c b/keyboards/chimera_ls/matrix.c
index 72fe441370..7208d971e1 100644
--- a/keyboards/chimera_ls/matrix.c
+++ b/keyboards/chimera_ls/matrix.c
@@ -26,6 +26,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"
 #include "matrix.h"
 #include "timer.h"
+#include "protocol/serial.h"
 
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
@@ -92,12 +93,11 @@ uint8_t matrix_cols(void) {
 
 void matrix_init(void) {
     matrix_init_quantum();
+    serial_init();
 }
 
 uint8_t matrix_scan(void)
 {
-    SERIAL_UART_INIT();
-
     uint32_t timeout = 0;
 
     //the s character requests the RF slave to send the matrix
diff --git a/keyboards/chimera_ls/rules.mk b/keyboards/chimera_ls/rules.mk
index 162e06aaf7..536e6053a1 100644
--- a/keyboards/chimera_ls/rules.mk
+++ b/keyboards/chimera_ls/rules.mk
@@ -28,14 +28,8 @@ NKRO_ENABLE = yes		# USB Nkey Rollover - not yet supported in LUFA
 UNICODE_ENABLE = YES 		# Unicode
 # BLUETOOTH_ENABLE = yes # Enable Bluetooth with the Adafruit EZ-Key HID
 
-USB = /dev/ttyACM0
-
-OPT_DEFS += -DCHIMERA_LS_PROMICRO
-CHIMERA_LS_UPLOAD_COMMAND = while [ ! -r $(USB) ]; do sleep 1; done; \
-                         avrdude -p $(MCU) -c avr109 -U flash:w:$(TARGET).hex -P $(USB)
-
 # project specific files
-SRC = matrix.c
+SRC += matrix.c serial_uart.c
 
 LAYOUTS = ortho_4x12
 
diff --git a/keyboards/chimera_ortho/chimera_ortho.c b/keyboards/chimera_ortho/chimera_ortho.c
index 2a602cf2f7..2cdc3d9331 100644
--- a/keyboards/chimera_ortho/chimera_ortho.c
+++ b/keyboards/chimera_ortho/chimera_ortho.c
@@ -1,9 +1,5 @@
 #include "chimera_ortho.h"
 
-void uart_init(void) {
-	SERIAL_UART_INIT();
-}
-
 void led_init(void) {
 	DDRD  |= (1<<1);
 	PORTD |= (1<<1);
@@ -16,16 +12,5 @@ void matrix_init_kb(void) {
 	// put your keyboard start-up code here
 	// runs once when the firmware starts up
 	matrix_init_user();
-	uart_init();
 	led_init();
 }
-
-void matrix_scan_kb(void) {
-	// put your looping keyboard code here
-	// runs every cycle (a lot)
-	matrix_scan_user();
-}
-
-void led_set_kb(uint8_t usb_led) {
-
-}
diff --git a/keyboards/chimera_ortho/config.h b/keyboards/chimera_ortho/config.h
index 4ce70e68ba..b103589879 100644
--- a/keyboards/chimera_ortho/config.h
+++ b/keyboards/chimera_ortho/config.h
@@ -60,19 +60,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
-#define SERIAL_UART_DATA UDR1
-#define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
-#define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
-#define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+#define SERIAL_UART_INIT_CUSTOM       \
+    /* enable TX and RX */            \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */                  \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10);
 
 #endif
diff --git a/keyboards/chimera_ortho/matrix.c b/keyboards/chimera_ortho/matrix.c
index dc38ba74f8..eb2f18473e 100644
--- a/keyboards/chimera_ortho/matrix.c
+++ b/keyboards/chimera_ortho/matrix.c
@@ -26,6 +26,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"
 #include "matrix.h"
 #include "timer.h"
+#include "protocol/serial.h"
 
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
@@ -78,12 +79,11 @@ uint8_t matrix_cols(void) {
 void matrix_init(void) {
 
     matrix_init_quantum();
+    serial_init();
 }
 
 uint8_t matrix_scan(void)
 {
-    SERIAL_UART_INIT();
-
     uint32_t timeout = 0;
 
     //the s character requests the RF slave to send the matrix
diff --git a/keyboards/chimera_ortho/rules.mk b/keyboards/chimera_ortho/rules.mk
index bf341ab5dd..e3bbaa39d4 100644
--- a/keyboards/chimera_ortho/rules.mk
+++ b/keyboards/chimera_ortho/rules.mk
@@ -28,11 +28,5 @@ NKRO_ENABLE = yes		# USB Nkey Rollover - not yet supported in LUFA
 UNICODE_ENABLE = YES 		# Unicode
 # BLUETOOTH_ENABLE = yes # Enable Bluetooth with the Adafruit EZ-Key HID
 
-USB = /dev/ttyACM0
-
-OPT_DEFS += -DCHIMERA_ORTHO_PROMICRO
-CHIMERA_ORTHO_UPLOAD_COMMAND = while [ ! -r $(USB) ]; do sleep 1; done; \
-                         avrdude -p $(MCU) -c avr109 -U flash:w:$(TARGET).hex -P $(USB)
-
 # project specific files
-SRC = matrix.c
+SRC += matrix.c serial_uart.c
diff --git a/keyboards/chimera_ortho_plus/chimera_ortho_plus.c b/keyboards/chimera_ortho_plus/chimera_ortho_plus.c
index 1972f2a9c3..6d87ed7053 100644
--- a/keyboards/chimera_ortho_plus/chimera_ortho_plus.c
+++ b/keyboards/chimera_ortho_plus/chimera_ortho_plus.c
@@ -1,9 +1,5 @@
 #include "chimera_ortho_plus.h"
 
-void uart_init(void) {
-	SERIAL_UART_INIT();
-}
-
 void led_init(void) {
     setPinOutput(D1);
     setPinOutput(F4);
@@ -18,6 +14,5 @@ void matrix_init_kb(void) {
 	// put your keyboard start-up code here
 	// runs once when the firmware starts up
 	matrix_init_user();
-	uart_init();
 	led_init();
 }
diff --git a/keyboards/chimera_ortho_plus/config.h b/keyboards/chimera_ortho_plus/config.h
index e060e196aa..4b12796e95 100644
--- a/keyboards/chimera_ortho_plus/config.h
+++ b/keyboards/chimera_ortho_plus/config.h
@@ -59,17 +59,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
-#define SERIAL_UART_DATA UDR1
-#define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
-#define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
-#define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+#define SERIAL_UART_INIT_CUSTOM       \
+    /* enable TX and RX */            \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */                  \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10);
diff --git a/keyboards/chimera_ortho_plus/matrix.c b/keyboards/chimera_ortho_plus/matrix.c
index ed6eac2b09..2bdc97991c 100644
--- a/keyboards/chimera_ortho_plus/matrix.c
+++ b/keyboards/chimera_ortho_plus/matrix.c
@@ -26,6 +26,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"
 #include "matrix.h"
 #include "timer.h"
+#include "protocol/serial.h"
 
 #if (MATRIX_COLS <= 8)
 #    define print_matrix_header()  print("\nr/c 01234567\n")
@@ -78,12 +79,11 @@ uint8_t matrix_cols(void) {
 void matrix_init(void) {
 
     matrix_init_quantum();
+    serial_init();
 }
 
 uint8_t matrix_scan(void)
 {
-    SERIAL_UART_INIT();
-
     uint32_t timeout = 0;
 
     //the s character requests the RF slave to send the matrix
diff --git a/keyboards/chimera_ortho_plus/rules.mk b/keyboards/chimera_ortho_plus/rules.mk
index 2dd6c3e1f0..fec1bef730 100644
--- a/keyboards/chimera_ortho_plus/rules.mk
+++ b/keyboards/chimera_ortho_plus/rules.mk
@@ -33,4 +33,4 @@ UNICODE_ENABLE = yes
 CUSTOM_MATRIX = yes
 
 # project specific files
-SRC = matrix.c
+SRC += matrix.c serial_uart.c
diff --git a/keyboards/comet46/comet46.c b/keyboards/comet46/comet46.c
index 0710b8e330..7c7edba93e 100644
--- a/keyboards/comet46/comet46.c
+++ b/keyboards/comet46/comet46.c
@@ -1,22 +1 @@
 #include "comet46.h"
-
-void uart_init(void) {
-	SERIAL_UART_INIT();
-}
-
-void matrix_init_kb(void) {
-	// put your keyboard start-up code here
-	// runs once when the firmware starts up
-	matrix_init_user();
-	uart_init();
-}
-
-void matrix_scan_kb(void) {
-	// put your looping keyboard code here
-	// runs every cycle (a lot)
-	matrix_scan_user();
-}
-
-void led_set_kb(uint8_t usb_led) {
-
-}
diff --git a/keyboards/comet46/config.h b/keyboards/comet46/config.h
index d50224eb60..5ae026f923 100644
--- a/keyboards/comet46/config.h
+++ b/keyboards/comet46/config.h
@@ -66,19 +66,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
-#define SERIAL_UART_DATA UDR1
-#define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
-#define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
-#define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+#define SERIAL_UART_INIT_CUSTOM       \
+    /* enable TX and RX */            \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /