esp-idf/components/esp32/lib_printf.c
2016-11-23 12:55:49 +08:00

125 lines
2.9 KiB
C

// Copyright 2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @file lib_printf.c
*
* This file contains library-specific printf functions
* used by WiFi libraries in the `lib` directory.
* These function are used to catch any output which gets printed
* by libraries, and redirect it to ESP_LOG macros.
*
* Eventually WiFi libraries will use ESP_LOG functions internally
* and these definitions will be removed.
*/
#include <stdio.h>
#include <stdlib.h>
#include "esp_log.h"
#include "esp_attr.h"
#define VPRINTF_STACK_BUFFER_SIZE 80
static int lib_printf(const char* tag, const char* format, va_list arg)
{
char temp[VPRINTF_STACK_BUFFER_SIZE];
int len = vsnprintf(temp, sizeof(temp) - 1, format, arg);
temp[sizeof(temp) - 1] = 0;
int i;
for (i = len - 1; i >= 0; --i) {
if (temp[i] != '\n' && temp[i] != '\r' && temp[i] != ' ') {
break;
}
temp[i] = 0;
}
if (i > 0) {
ESP_EARLY_LOGI(tag, "%s", temp);
}
va_end(arg);
return len;
}
int phy_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("phy", format, arg);
va_end(arg);
return res;
}
int rtc_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("rtc", format, arg);
va_end(arg);
return res;
}
int wpa_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("wpa", format, arg);
va_end(arg);
return res;
}
int wps_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("wps", format, arg);
va_end(arg);
return res;
}
int pp_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("pp", format, arg);
va_end(arg);
return res;
}
int sc_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("smartconfig", format, arg);
va_end(arg);
return res;
}
int core_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("core", format, arg);
va_end(arg);
return res;
}
int net80211_printf(const char* format, ...)
{
va_list arg;
va_start(arg, format);
int res = lib_printf("net80211", format, arg);
va_end(arg);
return res;
}