/*
Copyright 2012 Jun Wako <wakojun@gmail.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/>.
*/

#ifndef CONFIG_H
#define CONFIG_H

#define VENDOR_ID       0xFEED
#define PRODUCT_ID      0x3333
#define DEVICE_VER      0x0100
#define MANUFACTURER    t.m.k.
#define PRODUCT         Sun keyboard converter
#define DESCRIPTION     converts Sun keyboard protocol into USB

/* matrix size */
#define MATRIX_ROWS 16
#define MATRIX_COLS 8

/* key combination for command */
#define IS_COMMAND() ( \
    keyboard_report->mods == (MOD_BIT(KC_LALT) | MOD_BIT(KC_RALT)) || \
    keyboard_report->mods == (MOD_BIT(KC_LGUI) | MOD_BIT(KC_RGUI)) || \
    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
)

/* legacy keymap support */
#define USE_LEGACY_KEYMAP

/* HARDWARE_SERAIL assumes that a logic inverter (7404) is placed
 * in front of RX/TX to produce the positive logic the MCU expects.
 * The default is Software Serial.
 */
#if defined(HARDWARE_SERIAL)

    /* Hardware Serial (USART) configuration
     *     asynchronous, negative logic, 1200baud, no flow control
     *     1-start bit, 8-data bit, non parity, 1-stop bit
     *
     */
    #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega32U2__)
    #define SERIAL_UART_BAUD       1200
    #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&(1<<UDRE1))
    #define SERIAL_UART_INIT()     do { \
        UBRR1L = (uint8_t) SERIAL_UART_UBRR;       /* baud rate */ \
        UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8);  /* baud rate */ \
        UCSR1B = (1<<RXCIE1) | (1<<RXEN1) | /* RX: interrupt, RX: enable */ \
                 (1<<TXEN1);                /* TX: enable */ \
        UCSR1C = (0<<UPM11) | (0<<UPM10) | /* parity: none(00), even(01), odd(11) */ \
                 (0<<UCSZ12) | (1<<UCSZ11) | (1<<UCSZ10); /* data-8bit(011) */ \
        sei(); \
    } while(0)
    #else
    #   error "USART configuration is needed."
    #endif

#else
    /* Software Serial configuration
     *     asynchronous, negative logic, 1200baud, no flow control
     *     1-start bit, 8-data bit, non parity, 1-stop bit
     */
    #define SERIAL_SOFT_BAUD            1200
    #define SERIAL_SOFT_PARITY_NONE
    #define SERIAL_SOFT_BIT_ORDER_LSB
    #define SERIAL_SOFT_LOGIC_NEGATIVE
    /* RXD Port */
    #define SERIAL_SOFT_RXD_ENABLE
    #define SERIAL_SOFT_RXD_DDR         DDRD
    #define SERIAL_SOFT_RXD_PORT        PORTD
    #define SERIAL_SOFT_RXD_PIN         PIND
    #define SERIAL_SOFT_RXD_BIT         2
    #define SERIAL_SOFT_RXD_VECT        INT2_vect
    /* RXD Interupt */
    #ifdef SERIAL_SOFT_LOGIC_NEGATIVE
    /* enable interrupt: INT2(rising edge) */
    #define INTR_TRIG_EDGE   ((1<<ISC21)|(1<<ISC20))
    #else
    /* enable interrupt: INT2(falling edge) */
    #define INTR_TRIG_EDGE   ((1<<ISC21)|(0<<ISC20))
    #endif
    #define SERIAL_SOFT_RXD_INIT()      do { \
        /* pin configuration: input with pull-up */ \
        SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \
        SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \
        EICRA |= INTR_TRIG_EDGE; \
        EIMSK |= (1<<INT2); \
        sei(); \
    } while (0)
    #define SERIAL_SOFT_RXD_INT_ENTER()
    #define SERIAL_SOFT_RXD_INT_EXIT()  do { \
        /* clear interrupt  flag */ \
        EIFR = (1<<INTF2); \
    } while (0)
    #define SERIAL_SOFT_RXD_READ()      (SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))
    /* TXD Port */
    #define SERIAL_SOFT_TXD_ENABLE
    #define SERIAL_SOFT_TXD_DDR         DDRD
    #define SERIAL_SOFT_TXD_PORT        PORTD
    #define SERIAL_SOFT_TXD_PIN         PIND
    #define SERIAL_SOFT_TXD_BIT         3
    #define SERIAL_SOFT_TXD_HI()        do { SERIAL_SOFT_TXD_PORT |=  (1<<SERIAL_SOFT_TXD_BIT); } while (0)
    #define SERIAL_SOFT_TXD_LO()        do { SERIAL_SOFT_TXD_PORT &= ~(1<<SERIAL_SOFT_TXD_BIT); } while (0)
    #define SERIAL_SOFT_TXD_INIT()      do { \
        /* pin configuration: output */ \
        SERIAL_SOFT_TXD_DDR |= (1<<SERIAL_SOFT_TXD_BIT); \
        /* idle */ \
        SERIAL_SOFT_TXD_ON(); \
    } while (0)

#endif //hardware serial
#endif //config.h