+#define COL2ROW 0
+#define ROW2COL 1
+#define CUSTOM_MATRIX 2 /* Disables built-in matrix scanning code */
+
+// useful for direct pin mapping
+#define NO_PIN (~0)
+
+#ifdef __AVR__
+ #ifndef __ASSEMBLER__
+ #include <avr/io.h>
+ #endif
+ #define PORT_SHIFTER 4 // this may be 4 for all AVR chips
+
+ // If you want to add more to this list, reference the PINx definitions in these header
+ // files: https://github.com/vancegroup-mirrors/avr-libc/tree/master/avr-libc/include/avr
+
+ #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega16U4__)
+ #define ADDRESS_BASE 0x00
+ #define PINB_ADDRESS 0x3
+ #define PINC_ADDRESS 0x6
+ #define PIND_ADDRESS 0x9
+ #define PINE_ADDRESS 0xC
+ #define PINF_ADDRESS 0xF
+ #elif defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U2__)
+ #define ADDRESS_BASE 0x00
+ #define PINB_ADDRESS 0x3
+ #define PINC_ADDRESS 0x6
+ #define PIND_ADDRESS 0x9
+ #elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__)
+ #define ADDRESS_BASE 0x00
+ #define PINA_ADDRESS 0x0
+ #define PINB_ADDRESS 0x3
+ #define PINC_ADDRESS 0x6
+ #define PIND_ADDRESS 0x9
+ #define PINE_ADDRESS 0xC
+ #define PINF_ADDRESS 0xF
+ #elif defined(__AVR_ATmega32A__)
+ #define ADDRESS_BASE 0x10
+ #define PIND_ADDRESS 0x0
+ #define PINC_ADDRESS 0x3
+ #define PINB_ADDRESS 0x6
+ #define PINA_ADDRESS 0x9
+ #elif defined(__AVR_ATmega328P__)
+ #define ADDRESS_BASE 0x00
+ #define PINB_ADDRESS 0x3
+ #define PINC_ADDRESS 0x6
+ #define PIND_ADDRESS 0x9
+ #else
+ #error "Pins are not defined"
+ #endif
+
+ /* I/O pins */
+ #define PINDEF(port, pin) ((PIN##port##_ADDRESS << PORT_SHIFTER) | pin)
+
+ #ifdef PORTA
+ #define A0 PINDEF(A, 0)
+ #define A1 PINDEF(A, 1)
+ #define A2 PINDEF(A, 2)
+ #define A3 PINDEF(A, 3)
+ #define A4 PINDEF(A, 4)
+ #define A5 PINDEF(A, 5)
+ #define A6 PINDEF(A, 6)
+ #define A7 PINDEF(A, 7)
+ #endif
+ #ifdef PORTB
+ #define B0 PINDEF(B, 0)
+ #define B1 PINDEF(B, 1)
+ #define B2 PINDEF(B, 2)
+ #define B3 PINDEF(B, 3)
+ #define B4 PINDEF(B, 4)
+ #define B5 PINDEF(B, 5)
+ #define B6 PINDEF(B, 6)
+ #define B7 PINDEF(B, 7)
+ #endif
+ #ifdef PORTC
+ #define C0 PINDEF(C, 0)
+ #define C1 PINDEF(C, 1)
+ #define C2 PINDEF(C, 2)
+ #define C3 PINDEF(C, 3)
+ #define C4 PINDEF(C, 4)
+ #define C5 PINDEF(C, 5)
+ #define C6 PINDEF(C, 6)
+ #define C7 PINDEF(C, 7)
+ #endif
+ #ifdef PORTD
+ #define D0 PINDEF(D, 0)
+ #define D1 PINDEF(D, 1)
+ #define D2 PINDEF(D, 2)
+ #define D3 PINDEF(D, 3)
+ #define D4 PINDEF(D, 4)
+ #define D5 PINDEF(D, 5)
+ #define D6 PINDEF(D, 6)
+ #define D7 PINDEF(D, 7)
+ #endif
+ #ifdef PORTE
+ #define E0 PINDEF(E, 0)
+ #define E1 PINDEF(E, 1)
+ #define E2 PINDEF(E, 2)
+ #define E3 PINDEF(E, 3)
+ #define E4 PINDEF(E, 4)
+ #define E5 PINDEF(E, 5)
+ #define E6 PINDEF(E, 6)
+ #define E7 PINDEF(E, 7)
+ #endif
+ #ifdef PORTF
+ #define F0 PINDEF(F, 0)
+ #define F1 PINDEF(F, 1)
+ #define F2 PINDEF(F, 2)
+ #define F3 PINDEF(F, 3)
+ #define F4 PINDEF(F, 4)
+ #define F5 PINDEF(F, 5)
+ #define F6 PINDEF(F, 6)
+ #define F7 PINDEF(F, 7)
+ #endif
+
+#elif defined(PROTOCOL_CHIBIOS)
+ // Defines mapping for Proton C replacement
+ #ifdef CONVERT_TO_PROTON_C
+ // Left side (front)
+ #define D3 PAL_LINE(GPIOA, 9)
+ #define D2 PAL_LINE(GPIOA, 10)
+ // GND
+ // GND
+ #define D1 PAL_LINE(GPIOB, 7)
+ #define D0 PAL_LINE(GPIOB, 6)
+ #define D4 PAL_LINE(GPIOB, 5)
+ #define C6 PAL_LINE(GPIOB, 4)
+ #define D7 PAL_LINE(GPIOB, 3)
+ #define E6 PAL_LINE(GPIOB, 2)
+ #define B4 PAL_LINE(GPIOB, 1)
+ #define B5 PAL_LINE(GPIOB, 0)
+
+ // Right side (front)
+ // RAW
+ // GND
+ // RESET
+ // VCC
+ #define F4 PAL_LINE(GPIOA, 2)
+ #define F5 PAL_LINE(GPIOA, 1)
+ #define F6 PAL_LINE(GPIOA, 0)
+ #define F7 PAL_LINE(GPIOB, 8)
+ #define B1 PAL_LINE(GPIOB, 13)
+ #define B3 PAL_LINE(GPIOB, 14)
+ #define B2 PAL_LINE(GPIOB, 15)
+ #define B6 PAL_LINE(GPIOB, 9)
+
+ // LEDs (only D5/C13 uses an actual LED)
+ #ifdef CONVERT_TO_PROTON_C_RXLED
+ #define D5 PAL_LINE(GPIOC, 13)
+ #define B0 PAL_LINE(GPIOC, 13)
+ #else
+ #define D5 PAL_LINE(GPIOC, 13)
+ #define B0 PAL_LINE(GPIOC, 14)
+ #endif
+ #else
+ #define A0 PAL_LINE(GPIOA, 0)
+ #define A1 PAL_LINE(GPIOA, 1)
+ #define A2 PAL_LINE(GPIOA, 2)
+ #define A3 PAL_LINE(GPIOA, 3)
+ #define A4 PAL_LINE(GPIOA, 4)
+ #define A5 PAL_LINE(GPIOA, 5)
+ #define A6 PAL_LINE(GPIOA, 6)
+ #define A7 PAL_LINE(GPIOA, 7)
+ #define A8 PAL_LINE(GPIOA, 8)
+ #define A9 PAL_LINE(GPIOA, 9)
+ #define A10 PAL_LINE(GPIOA, 10)
+ #define A11 PAL_LINE(GPIOA, 11)
+ #define A12 PAL_LINE(GPIOA, 12)
+ #define A13 PAL_LINE(GPIOA, 13)
+ #define A14 PAL_LINE(GPIOA, 14)
+ #define A15 PAL_LINE(GPIOA, 15)
+ #define B0 PAL_LINE(GPIOB, 0)
+ #define B1 PAL_LINE(GPIOB, 1)
+ #define B2 PAL_LINE(GPIOB, 2)
+ #define B3 PAL_LINE(GPIOB, 3)
+ #define B4 PAL_LINE(GPIOB, 4)
+ #define B5 PAL_LINE(GPIOB, 5)
+ #define B6 PAL_LINE(GPIOB, 6)
+ #define B7 PAL_LINE(GPIOB, 7)
+ #define B8 PAL_LINE(GPIOB, 8)
+ #define B9 PAL_LINE(GPIOB, 9)
+ #define B10 PAL_LINE(GPIOB, 10)
+ #define B11 PAL_LINE(GPIOB, 11)
+ #define B12 PAL_LINE(GPIOB, 12)
+ #define B13 PAL_LINE(GPIOB, 13)
+ #define B14 PAL_LINE(GPIOB, 14)
+ #define B15 PAL_LINE(GPIOB, 15)
+ #define B16 PAL_LINE(GPIOB, 16)
+ #define B17 PAL_LINE(GPIOB, 17)
+ #define C0 PAL_LINE(GPIOC, 0)
+ #define C1 PAL_LINE(GPIOC, 1)
+ #define C2 PAL_LINE(GPIOC, 2)
+ #define C3 PAL_LINE(GPIOC, 3)
+ #define C4 PAL_LINE(GPIOC, 4)
+ #define C5 PAL_LINE(GPIOC, 5)
+ #define C6 PAL_LINE(GPIOC, 6)
+ #define C7 PAL_LINE(GPIOC, 7)
+ #define C8 PAL_LINE(GPIOC, 8)
+ #define C9 PAL_LINE(GPIOC, 9)
+ #define C10 PAL_LINE(GPIOC, 10)
+ #define C11 PAL_LINE(GPIOC, 11)
+ #define C12 PAL_LINE(GPIOC, 12)
+ #define C13 PAL_LINE(GPIOC, 13)
+ #define C14 PAL_LINE(GPIOC, 14)
+ #define C15 PAL_LINE(GPIOC, 15)
+ #define D0 PAL_LINE(GPIOD, 0)
+ #define D1 PAL_LINE(GPIOD, 1)
+ #define D2 PAL_LINE(GPIOD, 2)
+ #define D3 PAL_LINE(GPIOD, 3)
+ #define D4 PAL_LINE(GPIOD, 4)
+ #define D5 PAL_LINE(GPIOD, 5)
+ #define D6 PAL_LINE(GPIOD, 6)
+ #define D7 PAL_LINE(GPIOD, 7)
+ #define D8 PAL_LINE(GPIOD, 8)
+ #define D9 PAL_LINE(GPIOD, 9)
+ #define D10 PAL_LINE(GPIOD, 10)
+ #define D11 PAL_LINE(GPIOD, 11)
+ #define D12 PAL_LINE(GPIOD, 12)
+ #define D13 PAL_LINE(GPIOD, 13)
+ #define D14 PAL_LINE(GPIOD, 14)
+ #define D15 PAL_LINE(GPIOD, 15)
+ #define E0 PAL_LINE(GPIOE, 0)
+ #define E1 PAL_LINE(GPIOE, 1)
+ #define E2 PAL_LINE(GPIOE, 2)
+ #define E3 PAL_LINE(GPIOE, 3)
+ #define E4 PAL_LINE(GPIOE, 4)
+ #define E5 PAL_LINE(GPIOE, 5)
+ #define E6 PAL_LINE(GPIOE, 6)
+ #define E7 PAL_LINE(GPIOE, 7)
+ #define E8 PAL_LINE(GPIOE, 8)
+ #define E9 PAL_LINE(GPIOE, 9)
+ #define E10 PAL_LINE(GPIOE, 10)
+ #define E11 PAL_LINE(GPIOE, 11)
+ #define E12 PAL_LINE(GPIOE, 12)
+ #define E13 PAL_LINE(GPIOE, 13)
+ #define E14 PAL_LINE(GPIOE, 14)
+ #define E15 PAL_LINE(GPIOE, 15)
+ #define F0 PAL_LINE(GPIOF, 0)
+ #define F1 PAL_LINE(GPIOF, 1)
+ #define F2 PAL_LINE(GPIOF, 2)
+ #define F3 PAL_LINE(GPIOF, 3)
+ #define F4 PAL_LINE(GPIOF, 4)
+ #define F5 PAL_LINE(GPIOF, 5)
+ #define F6 PAL_LINE(GPIOF, 6)
+ #define F7 PAL_LINE(GPIOF, 7)
+ #define F8 PAL_LINE(GPIOF, 8)
+ #define F9 PAL_LINE(GPIOF, 9)
+ #define F10 PAL_LINE(GPIOF, 10)
+ #define F11 PAL_LINE(GPIOF, 11)
+ #define F12 PAL_LINE(GPIOF, 12)
+ #define F13 PAL_LINE(GPIOF, 13)
+ #define F14 PAL_LINE(GPIOF, 14)
+ #define F15 PAL_LINE(GPIOF, 15)
+ #endif