diff options
| author | Ryan <fauxpark@gmail.com> | 2021-02-06 09:20:48 +1100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-02-06 09:20:48 +1100 |
| commit | 5ea92a9c1cbe3e20bf4830d550d797a8e9650da8 (patch) | |
| tree | 75ea1413ae4fa23bd0b1230629b6a3b3e215c5eb /tmk_core/protocol | |
| parent | 464eb7137d27e3a31e85032c85c9fda627a8b33f (diff) | |
Serial refactor (#11521)
Diffstat (limited to 'tmk_core/protocol')
| -rw-r--r-- | tmk_core/protocol/serial.h | 2 | ||||
| -rw-r--r-- | tmk_core/protocol/serial_uart.c | 25 |
2 files changed, 26 insertions, 1 deletions
diff --git a/tmk_core/protocol/serial.h b/tmk_core/protocol/serial.h index b70d117d7c..0204b84a92 100644 --- a/tmk_core/protocol/serial.h +++ b/tmk_core/protocol/serial.h @@ -37,6 +37,8 @@ POSSIBILITY OF SUCH DAMAGE. #pragma once +#define SERIAL_UART_DATA UDR1 + /* host role */ void serial_init(void); uint8_t serial_recv(void); diff --git a/tmk_core/protocol/serial_uart.c b/tmk_core/protocol/serial_uart.c index a15124193a..4fe059e7d9 100644 --- a/tmk_core/protocol/serial_uart.c +++ b/tmk_core/protocol/serial_uart.c @@ -40,6 +40,22 @@ POSSIBILITY OF SUCH DAMAGE. #include <avr/interrupt.h> #include "serial.h" +#ifndef SERIAL_UART_BAUD +# define SERIAL_UART_BAUD 9600 +#endif + +#define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1) +#define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1)) +#define SERIAL_UART_RXD_VECT USART1_RX_vect + +#ifndef SERIAL_UART_INIT_CUSTOM +# define SERIAL_UART_INIT_CUSTOM \ + /* enable TX */ \ + UCSR1B = _BV(TXEN1); \ + /* 8-bit data */ \ + UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); +#endif + #if defined(SERIAL_UART_RTS_LO) && defined(SERIAL_UART_RTS_HI) // Buffer state // Empty: RBUF_SPACE == RBUF_SIZE(head==tail) @@ -61,7 +77,14 @@ POSSIBILITY OF SUCH DAMAGE. # define rbuf_check_rts_hi() #endif -void serial_init(void) { SERIAL_UART_INIT(); } +void serial_init(void) { + do { + // Set baud rate + UBRR1L = SERIAL_UART_UBRR; + UBRR1L = SERIAL_UART_UBRR >> 8; + SERIAL_UART_INIT_CUSTOM; + } while (0); +} // RX ring buffer #define RBUF_SIZE 256 |