at_utils.c
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-04-14 chenyong first version
*/
#include <at.h>
#include <stdlib.h>
#include <stdio.h>
static char send_buf[AT_CMD_MAX_LEN];
static rt_size_t last_cmd_len = 0;
/**
* dump hex format data to console device
*
* @param name name for hex object, it will show on log header
* @param buf hex buffer
* @param size buffer size
*/
void at_print_raw_cmd(const char *name, const char *buf, rt_size_t size)
{
#define __is_print(ch) ((unsigned int)((ch) - ' ') < 127u - ' ')
#define WIDTH_SIZE 32
rt_size_t i, j;
for (i = 0; i < size; i += WIDTH_SIZE)
{
rt_kprintf("[D/AT] %s: %04X-%04X: ", name, i, i + WIDTH_SIZE);
for (j = 0; j < WIDTH_SIZE; j++)
{
if (i + j < size)
{
rt_kprintf("%02X ", buf[i + j]);
}
else
{
rt_kprintf(" ");
}
if ((j + 1) % 8 == 0)
{
rt_kprintf(" ");
}
}
rt_kprintf(" ");
for (j = 0; j < WIDTH_SIZE; j++)
{
if (i + j < size)
{
rt_kprintf("%c", __is_print(buf[i + j]) ? buf[i + j] : '.');
}
}
rt_kprintf("\n");
}
}
const char *at_get_last_cmd(rt_size_t *cmd_size)
{
*cmd_size = last_cmd_len;
return send_buf;
}
RT_WEAK rt_size_t at_utils_send(rt_device_t dev,
rt_off_t pos,
const void *buffer,
rt_size_t size)
{
return rt_device_write(dev, pos, buffer, size);
}
rt_size_t at_vprintf(rt_device_t device, const char *format, va_list args)
{
last_cmd_len = vsnprintf(send_buf, sizeof(send_buf), format, args);
if(last_cmd_len > sizeof(send_buf))
last_cmd_len = sizeof(send_buf);
#ifdef AT_PRINT_RAW_CMD
at_print_raw_cmd("sendline", send_buf, last_cmd_len);
#endif
return at_utils_send(device, 0, send_buf, last_cmd_len);
}
rt_size_t at_vprintfln(rt_device_t device, const char *format, va_list args)
{
rt_size_t len;
last_cmd_len = vsnprintf(send_buf, sizeof(send_buf) - 2, format, args);
if(last_cmd_len > sizeof(send_buf) - 2)
last_cmd_len = sizeof(send_buf) - 2;
rt_memcpy(send_buf + last_cmd_len, "\r\n", 2);
len = last_cmd_len + 2;
#ifdef AT_PRINT_RAW_CMD
at_print_raw_cmd("sendline", send_buf, len);
#endif
return at_utils_send(device, 0, send_buf, len);
}