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feat(esp8266): Add "putc" and "vprintf" of version "ets_"

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This commit is contained in:
Dong Heng
2018-05-25 17:01:50 +08:00
parent 316a44f3c3
commit e15f211d46
5 changed files with 45 additions and 87 deletions
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23
components/esp8266/include/esp_libc.h
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@ -28,14 +28,37 @@
#include <stdint.h>
#include <stddef.h>
#include <stdio.h>
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
uint32_t os_random(void);
int32_t os_get_random(unsigned char *buf, size_t len);
/**
* @brief put a character to uart or other devices, similar with putc.
*
* @param c : a character.
*
* @return int : the character written as an unsigned char cast to an int or EOF on error.
*/
int ets_putc(int c);
/**
* @brief Printf the strings to uart or other devices, similar with vprintf, simple than vprintf.
* Can not print float point data format, or longlong data format.
*
* @param const char *fmt : See vprintf.
*
* @param ap : parameter list, see vprintf.
*
* @return int : the length printed to the output device.
*/
int ets_vprintf(const char *fmt, va_list ap);
/**
* @brief Printf the strings to uart or other devices, similar with printf, simple than printf.
* Can not print float point data format, or longlong data format.