old-trainOS/include/serial.h

52 lines
1 KiB
C
Raw Normal View History

#pragma once
#include <stddef.h>
#include <inttypes.h>
#define SERIAL_IER 1
#define SERIAL_IIR 2
#define SERIAL_FCR 2
#define SERIAL_LCR 3
#define SERIAL_MCR 4
#define SERIAL_LSR 5
#define SERIAL_MSR 6
#define SERIAL_COM1 0x3F8
#define SERIAL_COM2 0x2F8
#define SERIAL_COM3 0x3E8
#define SERIAL_COM4 0x2E8
#define SERIAL_PARITY_NONE 0b000
#define SERIAL_PARITY_ODD 0b100
#define SERIAL_PARITY_EVEN 0b110
#define SERIAL_PARITY_HIGH 0b101
#define SERIAL_PARITY_LOW 0b111
#if defined(__cplusplus)
extern "C" {
#endif
void serial_init(uint16_t port, uint32_t baud, uint8_t parity, uint8_t bits);
int serial_can_read(uint16_t port);
int serial_can_write(uint16_t port);
void serial_write(uint16_t port, const uint8_t *data, size_t length);
void serial_read(uint16_t port, uint8_t *data, size_t length);
void serial_printf(uint16_t port, const char *format, ...);
static inline void serial_write_str(uint16_t port, const char *text)
{
while(*text) {
serial_write(port, (uint8_t*)text, 1);
text++;
}
}
#if defined(__cplusplus)
}
#endif