clang-format changes

1 files changed, 355 insertions, 387 deletions

diff --git a/quantum/split_common/serial.c b/quantum/split_common/serial.c
index 322ab8030b..c4ef2a97e7 100644
--- a/quantum/split_common/serial.c
+++ b/quantum/split_common/serial.c
@@ -8,7 +8,7 @@
  */
 
 #ifndef F_CPU
-#define F_CPU 16000000
+#    define F_CPU 16000000
 #endif
 
 #include <avr/io.h>
@@ -21,252 +21,224 @@
 
 #ifdef SOFT_SERIAL_PIN
 
-#ifdef __AVR_ATmega32U4__
-  // if using ATmega32U4 I2C, can not use PD0 and PD1 in soft serial.
-  #ifdef USE_AVR_I2C
-    #if SOFT_SERIAL_PIN == D0 || SOFT_SERIAL_PIN == D1
-      #error Using ATmega32U4 I2C, so can not use PD0, PD1
-    #endif
-  #endif
-
-  #define setPinInputHigh(pin)    (DDRx_ADDRESS(pin)  &= ~_BV((pin) & 0xF), \
-                                   PORTx_ADDRESS(pin) |=  _BV((pin) & 0xF))
-  #define setPinOutput(pin)       (DDRx_ADDRESS(pin)  |=  _BV((pin) & 0xF))
-  #define writePinHigh(pin)       (PORTx_ADDRESS(pin) |=  _BV((pin) & 0xF))
-  #define writePinLow(pin)        (PORTx_ADDRESS(pin) &= ~_BV((pin) & 0xF))
-  #define readPin(pin)            ((bool)(PINx_ADDRESS(pin) & _BV((pin) & 0xF)))
-
-  #if SOFT_SERIAL_PIN >= D0 && SOFT_SERIAL_PIN <= D3
-    #if SOFT_SERIAL_PIN == D0
-      #define EIMSK_BIT       _BV(INT0)
-      #define EICRx_BIT       (~(_BV(ISC00) | _BV(ISC01)))
-      #define SERIAL_PIN_INTERRUPT INT0_vect
-    #elif  SOFT_SERIAL_PIN == D1
-      #define EIMSK_BIT       _BV(INT1)
-      #define EICRx_BIT       (~(_BV(ISC10) | _BV(ISC11)))
-      #define SERIAL_PIN_INTERRUPT INT1_vect
-    #elif  SOFT_SERIAL_PIN == D2
-      #define EIMSK_BIT       _BV(INT2)
-      #define EICRx_BIT       (~(_BV(ISC20) | _BV(ISC21)))
-      #define SERIAL_PIN_INTERRUPT INT2_vect
-    #elif  SOFT_SERIAL_PIN == D3
-      #define EIMSK_BIT       _BV(INT3)
-      #define EICRx_BIT       (~(_BV(ISC30) | _BV(ISC31)))
-      #define SERIAL_PIN_INTERRUPT INT3_vect
-    #endif
-  #elif  SOFT_SERIAL_PIN == E6
-    #define EIMSK_BIT        _BV(INT6)
-    #define EICRx_BIT        (~(_BV(ISC60) | _BV(ISC61)))
-    #define SERIAL_PIN_INTERRUPT INT6_vect
-  #else
-  #error invalid SOFT_SERIAL_PIN value
-  #endif
-
-#else
- #error serial.c now support ATmega32U4 only
-#endif
-
-#define ALWAYS_INLINE __attribute__((always_inline))
-#define NO_INLINE __attribute__((noinline))
-#define _delay_sub_us(x)    __builtin_avr_delay_cycles(x)
+#    ifdef __AVR_ATmega32U4__
+// if using ATmega32U4 I2C, can not use PD0 and PD1 in soft serial.
+#        ifdef USE_AVR_I2C
+#            if SOFT_SERIAL_PIN == D0 || SOFT_SERIAL_PIN == D1
+#                error Using ATmega32U4 I2C, so can not use PD0, PD1
+#            endif
+#        endif
+
+#        define setPinInputHigh(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
+#        define setPinOutput(pin) (DDRx_ADDRESS(pin) |= _BV((pin)&0xF))
+#        define writePinHigh(pin) (PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
+#        define writePinLow(pin) (PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF))
+#        define readPin(pin) ((bool)(PINx_ADDRESS(pin) & _BV((pin)&0xF)))
+
+#        if SOFT_SERIAL_PIN >= D0 && SOFT_SERIAL_PIN <= D3
+#            if SOFT_SERIAL_PIN == D0
+#                define EIMSK_BIT _BV(INT0)
+#                define EICRx_BIT (~(_BV(ISC00) | _BV(ISC01)))
+#                define SERIAL_PIN_INTERRUPT INT0_vect
+#            elif SOFT_SERIAL_PIN == D1
+#                define EIMSK_BIT _BV(INT1)
+#                define EICRx_BIT (~(_BV(ISC10) | _BV(ISC11)))
+#                define SERIAL_PIN_INTERRUPT INT1_vect
+#            elif SOFT_SERIAL_PIN == D2
+#                define EIMSK_BIT _BV(INT2)
+#                define EICRx_BIT (~(_BV(ISC20) | _BV(ISC21)))
+#                define SERIAL_PIN_INTERRUPT INT2_vect
+#            elif SOFT_SERIAL_PIN == D3
+#                define EIMSK_BIT _BV(INT3)
+#                define EICRx_BIT (~(_BV(ISC30) | _BV(ISC31)))
+#                define SERIAL_PIN_INTERRUPT INT3_vect
+#            endif
+#        elif SOFT_SERIAL_PIN == E6
+#            define EIMSK_BIT _BV(INT6)
+#            define EICRx_BIT (~(_BV(ISC60) | _BV(ISC61)))
+#            define SERIAL_PIN_INTERRUPT INT6_vect
+#        else
+#            error invalid SOFT_SERIAL_PIN value
+#        endif
+
+#    else
+#        error serial.c now support ATmega32U4 only
+#    endif
+
+#    define ALWAYS_INLINE __attribute__((always_inline))
+#    define NO_INLINE __attribute__((noinline))
+#    define _delay_sub_us(x) __builtin_avr_delay_cycles(x)
 
 // parity check
-#define ODD_PARITY 1
-#define EVEN_PARITY 0
-#define PARITY EVEN_PARITY
-
-#ifdef SERIAL_DELAY
-  // custom setup in config.h
-  // #define TID_SEND_ADJUST 2
-  // #define SERIAL_DELAY 6             // micro sec
-  // #define READ_WRITE_START_ADJUST 30 // cycles
-  // #define READ_WRITE_WIDTH_ADJUST 8 // cycles
-#else
+#    define ODD_PARITY 1
+#    define EVEN_PARITY 0
+#    define PARITY EVEN_PARITY
+
+#    ifdef SERIAL_DELAY
+// custom setup in config.h
+// #define TID_SEND_ADJUST 2
+// #define SERIAL_DELAY 6             // micro sec
+// #define READ_WRITE_START_ADJUST 30 // cycles
+// #define READ_WRITE_WIDTH_ADJUST 8 // cycles
+#    else
 // ============ Standard setups ============
 
-#ifndef SELECT_SOFT_SERIAL_SPEED
-#define SELECT_SOFT_SERIAL_SPEED 1
+#        ifndef SELECT_SOFT_SERIAL_SPEED
+#            define SELECT_SOFT_SERIAL_SPEED 1
 //  0: about 189kbps (Experimental only)
 //  1: about 137kbps (default)
 //  2: about 75kbps
 //  3: about 39kbps
 //  4: about 26kbps
 //  5: about 20kbps
-#endif
-
-#if __GNUC__ < 6
-  #define TID_SEND_ADJUST 14
-#else
-  #define TID_SEND_ADJUST 2
-#endif
-
-#if SELECT_SOFT_SERIAL_SPEED == 0
-  // Very High speed
-  #define SERIAL_DELAY 4             // micro sec
-  #if __GNUC__ < 6
-    #define READ_WRITE_START_ADJUST 33 // cycles
-    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
-  #else
-    #define READ_WRITE_START_ADJUST 34 // cycles
-    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
-  #endif
-#elif SELECT_SOFT_SERIAL_SPEED == 1
-  // High speed
-  #define SERIAL_DELAY 6             // micro sec
-  #if __GNUC__ < 6
-    #define READ_WRITE_START_ADJUST 30 // cycles
-    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
-  #else
-    #define READ_WRITE_START_ADJUST 33 // cycles
-    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
-  #endif
-#elif SELECT_SOFT_SERIAL_SPEED == 2
-  // Middle speed
-  #define SERIAL_DELAY 12            // micro sec
-  #define READ_WRITE_START_ADJUST 30 // cycles
-  #if __GNUC__ < 6
-    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
-  #else
-    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
-  #endif
-#elif SELECT_SOFT_SERIAL_SPEED == 3
-  // Low speed
-  #define SERIAL_DELAY 24            // micro sec
-  #define READ_WRITE_START_ADJUST 30 // cycles
-  #if __GNUC__ < 6
-    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
-  #else
-    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
-  #endif
-#elif SELECT_SOFT_SERIAL_SPEED == 4
-  // Very Low speed
-  #define SERIAL_DELAY 36            // micro sec
-  #define READ_WRITE_START_ADJUST 30 // cycles
-  #if __GNUC__ < 6
-    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
-  #else
-    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
-  #endif
-#elif SELECT_SOFT_SERIAL_SPEED == 5
-  // Ultra Low speed
-  #define SERIAL_DELAY 48            // micro sec
-  #define READ_WRITE_START_ADJUST 30 // cycles
-  #if __GNUC__ < 6
-    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
-  #else
-    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
-  #endif
-#else
-#error invalid SELECT_SOFT_SERIAL_SPEED value
-#endif /* SELECT_SOFT_SERIAL_SPEED */
-#endif /* SERIAL_DELAY */
-
-#define SERIAL_DELAY_HALF1 (SERIAL_DELAY/2)
-#define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY/2)
-
-#define SLAVE_INT_WIDTH_US 1
-#ifndef SERIAL_USE_MULTI_TRANSACTION
-  #define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
-#else
-  #define SLAVE_INT_ACK_WIDTH_UNIT 2
-  #define SLAVE_INT_ACK_WIDTH 4
-#endif
-
-static SSTD_t *Transaction_table = NULL;
+#        endif
+
+#        if __GNUC__ < 6
+#            define TID_SEND_ADJUST 14
+#        else
+#            define TID_SEND_ADJUST 2
+#        endif
+
+#        if SELECT_SOFT_SERIAL_SPEED == 0
+// Very High speed
+#            define SERIAL_DELAY 4  // micro sec
+#            if __GNUC__ < 6
+#                define READ_WRITE_START_ADJUST 33  // cycles
+#                define READ_WRITE_WIDTH_ADJUST 3   // cycles
+#            else
+#                define READ_WRITE_START_ADJUST 34  // cycles
+#                define READ_WRITE_WIDTH_ADJUST 7   // cycles
+#            endif
+#        elif SELECT_SOFT_SERIAL_SPEED == 1
+// High speed
+#            define SERIAL_DELAY 6  // micro sec
+#            if __GNUC__ < 6
+#                define READ_WRITE_START_ADJUST 30  // cycles
+#                define READ_WRITE_WIDTH_ADJUST 3   // cycles
+#            else
+#                define READ_WRITE_START_ADJUST 33  // cycles
+#                define READ_WRITE_WIDTH_ADJUST 7   // cycles
+#            endif
+#        elif SELECT_SOFT_SERIAL_SPEED == 2
+// Middle speed
+#            define SERIAL_DELAY 12             // micro sec
+#            define READ_WRITE_START_ADJUST 30  // cycles
+#            if __GNUC__ < 6
+#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
+#            else
+#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
+#            endif
+#        elif SELECT_SOFT_SERIAL_SPEED == 3
+// Low speed
+#            define SERIAL_DELAY 24             // micro sec
+#            define READ_WRITE_START_ADJUST 30  // cycles
+#            if __GNUC__ < 6
+#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
+#            else
+#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
+#            endif
+#        elif SELECT_SOFT_SERIAL_SPEED == 4
+// Very Low speed
+#            define SERIAL_DELAY 36             // micro sec
+#            define READ_WRITE_START_ADJUST 30  // cycles
+#            if __GNUC__ < 6
+#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
+#            else
+#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
+#            endif
+#        elif SELECT_SOFT_SERIAL_SPEED == 5
+// Ultra Low speed
+#            define SERIAL_DELAY 48             // micro sec
+#            define READ_WRITE_START_ADJUST 30  // cycles
+#            if __GNUC__ < 6
+#                define READ_WRITE_WIDTH_ADJUST 3  // cycles
+#            else
+#                define READ_WRITE_WIDTH_ADJUST 7  // cycles
+#            endif
+#        else
+#            error invalid SELECT_SOFT_SERIAL_SPEED value
+#        endif /* SELECT_SOFT_SERIAL_SPEED */
+#    endif     /* SERIAL_DELAY */
+
+#    define SERIAL_DELAY_HALF1 (SERIAL_DELAY / 2)
+#    define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY / 2)
+
+#    define SLAVE_INT_WIDTH_US 1
+#    ifndef SERIAL_USE_MULTI_TRANSACTION
+#        define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
+#    else
+#        define SLAVE_INT_ACK_WIDTH_UNIT 2
+#        define SLAVE_INT_ACK_WIDTH 4
+#    endif
+
+static SSTD_t *Transaction_table      = NULL;
 static uint8_t Transaction_table_size = 0;
 
 inline static void serial_delay(void) ALWAYS_INLINE;
-inline static
-void serial_delay(void) {
-  _delay_us(SERIAL_DELAY);
-}
+inline static void serial_delay(void) { _delay_us(SERIAL_DELAY); }
 
 inline static void serial_delay_half1(void) ALWAYS_INLINE;
-inline static
-void serial_delay_half1(void) {
-  _delay_us(SERIAL_DELAY_HALF1);
-}
+inline static void serial_delay_half1(void) { _delay_us(SERIAL_DELAY_HALF1); }
 
 inline static void serial_delay_half2(void) ALWAYS_INLINE;
-inline static
-void serial_delay_half2(void) {
-  _delay_us(SERIAL_DELAY_HALF2);
-}
+inline static void serial_delay_half2(void) { _delay_us(SERIAL_DELAY_HALF2); }
 
 inline static void serial_output(void) ALWAYS_INLINE;
-inline static
-void serial_output(void) {
-  setPinOutput(SOFT_SERIAL_PIN);
-}
+inline static void serial_output(void) { setPinOutput(SOFT_SERIAL_PIN); }
 
 // make the serial pin an input with pull-up resistor
 inline static void serial_input_with_pullup(void) ALWAYS_INLINE;
-inline static
-void serial_input_with_pullup(void) {
-  setPinInputHigh(SOFT_SERIAL_PIN);
-}
+inline static void serial_input_with_pullup(void) { setPinInputHigh(SOFT_SERIAL_PIN); }
 
 inline static uint8_t serial_read_pin(void) ALWAYS_INLINE;
-inline static
-uint8_t serial_read_pin(void) {
-  return !! readPin(SOFT_SERIAL_PIN);
-}
+inline static uint8_t serial_read_pin(void) { return !!readPin(SOFT_SERIAL_PIN); }
 
 inline static void serial_low(void) ALWAYS_INLINE;
-inline static
-void serial_low(void) {
-  writePinLow(SOFT_SERIAL_PIN);
-}
+inline static void serial_low(void) { writePinLow(SOFT_SERIAL_PIN); }
 
 inline static void serial_high(void) ALWAYS_INLINE;
-inline static
-void serial_high(void) {
-  writePinHigh(SOFT_SERIAL_PIN);
-}
+inline static void serial_high(void) { writePinHigh(SOFT_SERIAL_PIN); }
 
-void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size)
-{
-    Transaction_table = sstd_table;
+void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size) {
+    Transaction_table      = sstd_table;
     Transaction_table_size = (uint8_t)sstd_table_size;
     serial_output();
     serial_high();
 }
 
-void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size)
-{
-    Transaction_table = sstd_table;
+void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size) {
+    Transaction_table      = sstd_table;
     Transaction_table_size = (uint8_t)sstd_table_size;
     serial_input_with_pullup();
 
     // Enable INT0-INT3,INT6
     EIMSK |= EIMSK_BIT;
-#if SOFT_SERIAL_PIN == E6
+#    if SOFT_SERIAL_PIN == E6
     // Trigger on falling edge of INT6
     EICRB &= EICRx_BIT;
-#else
+#    else
     // Trigger on falling edge of INT0-INT3
     EICRA &= EICRx_BIT;
-#endif
+#    endif
 }
 
 // Used by the sender to synchronize timing with the reciver.
 static void sync_recv(void) NO_INLINE;
-static
-void sync_recv(void) {
-  for (uint8_t i = 0; i < SERIAL_DELAY*5 && serial_read_pin(); i++ ) {
-  }
-  // This shouldn't hang if the target disconnects because the
-  // serial line will float to high if the target does disconnect.
-  while (!serial_read_pin());
+static void sync_recv(void) {
+    for (uint8_t i = 0; i < SERIAL_DELAY * 5 && serial_read_pin(); i++) {
+    }
+    // This shouldn't hang if the target disconnects because the
+    // serial line will float to high if the target does disconnect.
+    while (!serial_read_pin())
+        ;
 }
 
 // Used by the reciver to send a synchronization signal to the sender.
 static void sync_send(void) NO_INLINE;
-static
-void sync_send(void) {
-  serial_low();
-  serial_delay();
-  serial_high();
+static void sync_send(void) {
+    serial_low();
+    serial_delay();
+    serial_high();
 }
 
 // Reads a byte from the serial line
@@ -274,92 +246,94 @@ static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) NO_INLINE;
 static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) {
     uint8_t byte, i, p, pb;
 
-  _delay_sub_us(READ_WRITE_START_ADJUST);
-  for( i = 0, byte = 0, p = PARITY; i < bit; i++ ) {
-      serial_delay_half1();   // read the middle of pulses
-      if( serial_read_pin() ) {
-          byte = (byte << 1) | 1; p ^= 1;
-      } else {
-          byte = (byte << 1) | 0; p ^= 0;
-      }
-      _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
-      serial_delay_half2();
-  }
-  /* recive parity bit */
-  serial_delay_half1();   // read the middle of pulses
-  pb = serial_read_pin();
-  _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
-  serial_delay_half2();
-
-  *pterrcount += (p != pb)? 1 : 0;
-
-  return byte;
+    _delay_sub_us(READ_WRITE_START_ADJUST);
+    for (i = 0, byte = 0, p = PARITY; i < bit; i++) {
+        serial_delay_half1();  // read the middle of pulses
+        if (serial_read_pin()) {
+            byte = (byte << 1) | 1;
+            p ^= 1;
+        } else {
+            byte = (byte << 1) | 0;
+            p ^= 0;
+        }
+        _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
+        serial_delay_half2();
+    }
+    /* recive parity bit */
+    serial_delay_half1();  // read the middle of pulses
+    pb = serial_read_pin();
+    _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
+    serial_delay_half2();
+
+    *pterrcount += (p != pb) ? 1 : 0;
+
+    return byte;
 }
 
 // Sends a byte with MSB ordering
 void serial_write_chunk(uint8_t data, uint8_t bit) NO_INLINE;
 void serial_write_chunk(uint8_t data, uint8_t bit) {
     uint8_t b, p;
-    for( p = PARITY, b = 1<<(bit-1); b ; b >>= 1) {
-        if(data & b) {
-            serial_high(); p ^= 1;
+    for (p = PARITY, b = 1 << (bit - 1); b; b >>= 1) {
+        if (data & b) {
+            serial_high();
+            p ^= 1;
         } else {
-            serial_low();  p ^= 0;
+            serial_low();
+            p ^= 0;
         }
         serial_delay();
     }
     /* send parity bit */
-    if(p & 1) { serial_high(); }
-    else      { serial_low(); }
+    if (p & 1) {
+        serial_high();
+    } else {
+        serial_low();
+    }
     serial_delay();
 
-    serial_low(); // sync_send() / senc_recv() need raise edge
+    serial_low();  // sync_send() / senc_recv() need raise edge
 }
 
 static void serial_send_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
-static
-void serial_send_packet(uint8_t *buffer, uint8_t size) {
-  for (uint8_t i = 0; i < size; ++i) {
-    uint8_t data;
-    data = buffer[i];
-    sync_send();
-    serial_write_chunk(data,8);
-  }
+static void serial_send_packet(uint8_t *buffer, uint8_t size) {
+    for (uint8_t i = 0; i < size; ++i) {
+        uint8_t data;
+        data = buffer[i];
+        sync_send();
+        serial_write_chunk(data, 8);
+    }
 }
 
 static uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
-static
-uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) {
-  uint8_t pecount = 0;
-  for (uint8_t i = 0; i < size; ++i) {
-    uint8_t data;
-    sync_recv();
-    data = serial_read_chunk(&pecount, 8);
-    buffer[i] = data;
-  }
-  return pecount == 0;
+static uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) {
+    uint8_t pecount = 0;
+    for (uint8_t i = 0; i < size; ++i) {
+        uint8_t data;
+        sync_recv();
+        data      = serial_read_chunk(&pecount, 8);
+        buffer[i] = data;
+    }
+    return pecount == 0;
 }
 
-inline static
-void change_sender2reciver(void) {
-    sync_send();          //0
-    serial_delay_half1(); //1
-    serial_low();         //2
-    serial_input_with_pullup(); //2
-    serial_delay_half1(); //3
+inline static void change_sender2reciver(void) {
+    sync_send();                 // 0
+    serial_delay_half1();        // 1
+    serial_low();                // 2
+    serial_input_with_pullup();  // 2
+    serial_delay_half1();        // 3
 }
 
-inline static
-void change_reciver2sender(void) {
-    sync_recv();     //0
-    serial_delay();  //1
-    serial_low();    //3
-    serial_output(); //3
-    serial_delay_half1(); //4
+inline static void change_reciver2sender(void) {
+    sync_recv();           // 0
+    serial_delay();        // 1
+    serial_low();          // 3
+    serial_output();       // 3
+    serial_delay_half1();  // 4
 }
 
-static inline uint8_t nibble_bits_count(uint8_t bits)
-{
+static inline uint8_t nibble_bits_count(uint8_t bits) {
     bits = (bits & 0x5) + (bits >> 1 & 0x5);
     bits = (bits & 0x3) + (bits >> 2 & 0x3);
     return bits;
@@ -367,51 +341,47 @@ static inline uint8_t nibble_bits_count(uint8_t bits)
 
 // interrupt handle to be used by the target device
 ISR(SERIAL_PIN_INTERRUPT) {
+#    ifndef SERIAL_USE_MULTI_TRANSACTION
+    serial_low();
+    serial_output();
+    SSTD_t *trans = Transaction_table;
+#    else
+    // recive transaction table index
+    uint8_t tid, bits;
+    uint8_t pecount = 0;
+    sync_recv();
+    bits = serial_read_chunk(&pecount, 7);
+    tid  = bits >> 3;
+    bits = (bits & 7) != nibble_bits_count(tid);
+    if (bits || pecount > 0 || tid > Transaction_table_size) {
+        return;
+    }
+    serial_delay_half1();
 
-#ifndef SERIAL_USE_MULTI_TRANSACTION
-  serial_low();
-  serial_output();
-  SSTD_t *trans = Transaction_table;
-#else
-  // recive transaction table index
-  uint8_t tid, bits;
-  uint8_t pecount = 0;
-  sync_recv();
-  bits = serial_read_chunk(&pecount,7);
-  tid = bits>>3;
-  bits = (bits&7) != nibble_bits_count(tid);
-  if( bits || pecount> 0 || tid > Transaction_table_size ) {
-      return;
-  }
-  serial_delay_half1();
-
-  serial_high(); // response step1 low->high
-  serial_output();
-  _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT*SLAVE_INT_ACK_WIDTH);
-  SSTD_t *trans = &Transaction_table[tid];
-  serial_low(); // response step2 ack high->low
-#endif
+    serial_high();  // response step1 low->high
+    serial_output();
+    _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT * SLAVE_INT_ACK_WIDTH);
+    SSTD_t *trans = &Transaction_table[tid];
+    serial_low();  // response step2 ack high->low
+#    endif
+
+    // target send phase
+    if (trans->target2initiator_buffer_size > 0) serial_send_packet((uint8_t *)trans->target2initiator_buffer, trans->target2initiator_buffer_size);
+    // target switch to input
+    change_sender2reciver();
+
+    // target recive phase
+    if (trans->initiator2target_buffer_size > 0) {
+        if (serial_recive_packet((uint8_t *)trans->initiator2target_buffer, trans->initiator2target_buffer_size)) {
+            *trans->status = TRANSACTION_ACCEPTED;
+        } else {
+            *trans->status = TRANSACTION_DATA_ERROR;
+        }
+    } else {
+        *trans->status = TRANSACTION_ACCEPTED;
+    }
 
-  // target send phase
-  if( trans->target2initiator_buffer_size > 0 )
-      serial_send_packet((uint8_t *)trans->target2initiator_buffer,
-                         trans->target2initiator_buffer_size);
-  // target switch to input
-  change_sender2reciver();
-
-  // target recive phase
-  if( trans->initiator2target_buffer_size > 0 ) {
-      if (serial_recive_packet((uint8_t *)trans->initiator2target_buffer,
-                               trans->initiator2target_buffer_size) ) {
-          *trans->status = TRANSACTION_ACCEPTED;
-      } else {
-          *trans->status = TRANSACTION_DATA_ERROR;
-      }
-  } else {
-      *trans->status = TRANSACTION_ACCEPTED;
-  }
-
-  sync_recv(); //weit initiator output to high
+    sync_recv();  // weit initiator output to high
 }
 
 /////////
@@ -424,105 +394,103 @@ ISR(SERIAL_PIN_INTERRUPT) {
 //    TRANSACTION_NO_RESPONSE
 //    TRANSACTION_DATA_ERROR
 // this code is very time dependent, so we need to disable interrupts
-#ifndef SERIAL_USE_MULTI_TRANSACTION
-int  soft_serial_transaction(void) {
-  SSTD_t *trans = Transaction_table;
-#else
-int  soft_serial_transaction(int sstd_index) {
-  if( sstd_index > Transaction_table_size )
-      return TRANSACTION_TYPE_ERROR;
-  SSTD_t *trans = &Transaction_table[sstd_index];
-#endif
-  cli();
+#    ifndef SERIAL_USE_MULTI_TRANSACTION
+int soft_serial_transaction(void) {
+    SSTD_t *trans = Transaction_table;
+#    else
+int soft_serial_transaction(int sstd_index) {
+    if (sstd_index > Transaction_table_size) return TRANSACTION_TYPE_ERROR;
+    SSTD_t *trans = &Transaction_table[sstd_index];
+#    endif
+    cli();
 
-  // signal to the target that we want to start a transaction
-  serial_output();
-  serial_low();
-  _delay_us(SLAVE_INT_WIDTH_US);
+    // signal to the target that we want to start a transaction
+    serial_output();
+    serial_low();
+    _delay_us(SLAVE_INT_WIDTH_US);
 
-#ifndef SERIAL_USE_MULTI_TRANSACTION
-  // wait for the target response
-  serial_input_with_pullup();
-  _delay_us(SLAVE_INT_RESPONSE_TIME);
+#    ifndef SERIAL_USE_MULTI_TRANSACTION
+    // wait for the target response
+    serial_input_with_pullup();
+    _delay_us(SLAVE_INT_RESPONSE_TIME);
+
+    // check if the target is present
+    if (serial_read_pin()) {
+        // target failed to pull the line low, assume not present
+        serial_output();
+        serial_high();
+        *trans->status = TRANSACTION_NO_RESPONSE;
+        sei();
+        return TRANSACTION_NO_RESPONSE;
+    }
 
-  // check if the target is present
-  if (serial_read_pin()) {
-    // target failed to pull the line low, assume not present
-    serial_output();
-    serial_high();
-    *trans->status = TRANSACTION_NO_RESPONSE;
-    sei();
-    return TRANSACTION_NO_RESPONSE;
-  }
-
-#else
-  // send transaction table index
-  int tid = (sstd_index<<3) | (7 & nibble_bits_count(sstd_index));
-  sync_send();
-  _delay_sub_us(TID_SEND_ADJUST);
-  serial_write_chunk(tid, 7);
-  serial_delay_half1();
-
-  // wait for the target response (step1 low->high)
-  serial_input_with_pullup();
-  while( !serial_read_pin() ) {
-      _delay_sub_us(2);
-  }
-
-  // check if the target is present (step2 high->low)
-  for( int i = 0; serial_read_pin(); i++ ) {
-      if (i > SLAVE_INT_ACK_WIDTH + 1) {
-          // slave failed to pull the line low, assume not present
-          serial_output();
-          serial_high();
-          *trans->status = TRANSACTION_NO_RESPONSE;
-          sei();
-          return TRANSACTION_NO_RESPONSE;
-      }
-      _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT);
-  }
-#endif
+#    else
+    // send transaction table index
+    int tid = (sstd_index << 3) | (7 & nibble_bits_count(sstd_index));
+    sync_send();
+    _delay_sub_us(TID_SEND_ADJUST);
+    serial_write_chunk(tid, 7);
+    serial_delay_half1();
+
+    // wait for the target response (step1 low->high)
+    serial_input_with_pullup();
+    while (!serial_read_pin()) {
+        _delay_sub_us(2);
+    }
+
+    // check if the target is present (step2 high->low)
+    for (int i = 0; serial_read_pin(); i++) {
+        if (i > SLAVE_INT_ACK_WIDTH + 1) {
+            // slave failed to pull the line low, assume not present
+            serial_output();
+            serial_high();
+            *trans->status = TRANSACTION_NO_RESPONSE;
+            sei();
+            return TRANSACTION_NO_RESPONSE;
+        }
+        _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT);
+    }
+#    endif
+
+    // initiator recive phase
+    // if the target is present syncronize with it
+    if (trans->target2initiator_buffer_size > 0) {
+        if (!serial_recive_packet((uint8_t *)trans->target2initiator_buffer, trans->target2initiator_buffer_size)) {
+            serial_output();
+            serial_high();
+            *trans->status = TRANSACTION_DATA_ERROR;
+            sei();
+            return TRANSACTION_DATA_ERROR;
+        }
+    }
+
+    // initiator switch to output
+    change_reciver2sender();
+
+    // initiator send phase
+    if (trans->initiator2target_buffer_size > 0) {
+        serial_send_packet((uint8_t *)trans->initiator2target_buffer, trans->initiator2target_buffer_size);
+    }
 
-  // initiator recive phase
-  // if the target is present syncronize with it
-  if( trans->target2initiator_buffer_size > 0 ) {
-      if (!serial_recive_packet((uint8_t *)trans->target2initiator_buffer,
-                                trans->target2initiator_buffer_size) ) {
-          serial_output();
-          serial_high();
-          *trans->status = TRANSACTION_DATA_ERROR;
-          sei();
-          return TRANSACTION_DATA_ERROR;
-      }
-   }
-
-  // initiator switch to output
-  change_reciver2sender();
-
-  // initiator send phase
-  if( trans->initiator2target_buffer_size > 0 ) {
-      serial_send_packet((uint8_t *)trans->initiator2target_buffer,
-                         trans->initiator2target_buffer_size);
-  }
-
-  // always, release the line when not in use
-  sync_send();
-
-  *trans->status = TRANSACTION_END;
-  sei();
-  return TRANSACTION_END;
+    // always, release the line when not in use
+    sync_send();
+
+    *trans->status = TRANSACTION_END;
+    sei();
+    return TRANSACTION_END;
 }
 
-#ifdef SERIAL_USE_MULTI_TRANSACTION
+#    ifdef SERIAL_USE_MULTI_TRANSACTION
 int soft_serial_get_and_clean_status(int sstd_index) {
     SSTD_t *trans = &Transaction_table[sstd_index];
     cli();
-    int retval = *trans->status;
-    *trans->status = 0;;
+    int retval     = *trans->status;
+    *trans->status = 0;
+    ;
     sei();
     return retval;
 }
-#endif
+#    endif
 
 #endif