/* Copyright 2015-2017 Jack Humbert
 *
 * 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/>.
 */

#ifndef CONFIG_DEFINITIONS_H
#define CONFIG_DEFINITIONS_H

#include <avr/io.h>

/* diode directions */
#define COL2ROW       0
#define ROW2COL       1
#define CUSTOM_MATRIX 2 /* Disables built-in matrix scanning code */

/* I/O pins */
#define PINDEF(port, pin) (uint8_t)((((uint16_t)&PORT##port) << 4) + PIN##port##pin)

#define PIN(p) (*((volatile uint8_t*)(p >> 4) + 0))
#define PIN_VALUE(p) (PIN(p) & _BV(p & 0xF))

#define DDR(p) (*((volatile uint8_t*)(p >> 4) + 1))
#define DDR_OUTPUT(p) (DDR(p) |= _BV(p & 0xF))
#define DDR_INPUT(p) (DDR(p) &= ~_BV(p & 0xF))

#define PORT(p) (*((volatile uint8_t*)(p >> 4) + 2))
#define PORT_HIGH(p) (PORT(p) |= _BV(p & 0xF))
#define PORT_LOW(p) (PORT(p) &= ~_BV(p & 0xF))

#ifdef PORTA
    #define A0 PINDEF(A, 0)
    #define A1 PINDEF(A, 1)
    #define A2 PINDEF(A, 1)
    #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


/* USART configuration */
#ifdef BLUETOOTH_ENABLE
#   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
#endif

#define API_SYSEX_MAX_SIZE 32

#include "song_list.h"

#endif