rt-thread-official/bsp/gd32vf103v-eval/libraries/n22/stubs/write.c

46 lines
910 B
C

/* See LICENSE of license details. */
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <gd32vf103.h>
#include <unistd.h>
#include <sys/types.h>
#include "stub.h"
#include "gd32vf103.h"
typedef unsigned int size_t;
extern int _put_char(int ch) __attribute__((weak));
ssize_t _write(int fd, const void* ptr, size_t len) {
const uint8_t * current = (const uint8_t *) ptr;
// if (isatty(fd))
{
for (size_t jj = 0; jj < len; jj++) {
_put_char(current[jj]);
if (current[jj] == '\n') {
_put_char('\r');
}
}
return len;
}
return _stub(EBADF);
}
int puts(const char* string) {
return _write(0, (const void *) string, strlen(string));
}
int _put_char(int ch) {
usart_data_transmit(USART0, (uint8_t) ch);
while (usart_flag_get(USART0, USART_FLAG_TBE) == RESET) {
}
return ch;
}