xsync_stm32/iflytop_xsync/xs_log.c

#include "xs_log.h"

#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
bool                      g_xs_enable_log = true;
extern UART_HandleTypeDef PC_DEBUG_UART;
/*********************************************************************
 * @fn      _write
 *
 * @brief   Support Printf Function
 *
 * @param   *buf - UART send Data.
 *          size - Data length
 *
 * @return  size: Data length
 */
__attribute__((used)) int _write(int fd, char* buf, int size) {
  int i;

  for (i = 0; i < size; i++) {
    uint8_t c = *buf++;
    HAL_UART_Transmit(&PC_DEBUG_UART, &c, 1, 100);
  }

  return size;
}

void xs_log_enable(bool enable) { g_xs_enable_log = enable; }
void xs_log(const char* fmt, ...) {
  if (g_xs_enable_log) {
    va_list args;
    va_start(args, fmt);
    vprintf(fmt, args);
    va_end(args);
  }
}