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qmk_firmware/keyboards/kapcave/paladin64/config.h

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/*
Copyright 2021 KapCave
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/>.
*/
#pragma once
/* Only required if you add in a trackpoint hardware to the pcb */
#ifdef PS2_DRIVER_USART
#define PS2_CLOCK_PIN D5
#define PS2_DATA_PIN D2
/* synchronous, odd parity, 1-bit stop, 8-bit data, sample at falling
* edge */
/* set DDR of CLOCK as input to be slave */
#define PS2_USART_INIT() do { \
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT); \
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT); \
UCSR1C = ((1 << UMSEL10) | \
(3 << UPM10) | \
(0 << USBS1) | \
(3 << UCSZ10) | \
(0 << UCPOL1)); \
UCSR1A = 0; \
UBRR1H = 0; \
UBRR1L = 0; \
} while (0)
#define PS2_USART_RX_INT_ON() do { \
UCSR1B = ((1 << RXCIE1) | \
(1 << RXEN1)); \
} while (0)
#define PS2_USART_RX_POLL_ON() do { \
UCSR1B = (1 << RXEN1); \
} while (0)
#define PS2_USART_OFF() do { \
UCSR1C = 0; \
UCSR1B &= ~((1 << RXEN1) | \
(1 << TXEN1)); \
} while (0)
#define PS2_USART_RX_READY (UCSR1A & (1<<RXC1))
#define PS2_USART_RX_DATA UDR1
#define PS2_USART_ERROR (UCSR1A & ((1<<FE1) | (1<<DOR1) | (1<<UPE1)))
#define PS2_USART_RX_VECT USART1_RX_vect
#endif
#ifdef PS2_DRIVER_INTERRUPT
#define PS2_CLOCK_PIN D2
#define PS2_DATA_PIN D5
#define PS2_INT_INIT() do { \
EICRA |= ((1<<ISC21) | \
(0<<ISC20)); \
} while (0)
#define PS2_INT_ON() do { \
EIMSK |= (1<<INT2); \
} while (0)
#define PS2_INT_OFF() do { \
EIMSK &= ~(1<<INT2); \
} while (0)
#define PS2_INT_VECT INT2_vect
#endif