blob: 7b999a519ba954df7b448708c8824e4ac23c293b [file] [log] [blame]
Masahiro Yamada5e882e92017-09-16 14:10:39 +09001#ifndef __STDIO_H
2#define __STDIO_H
3
4#include <stdarg.h>
5#include <linux/compiler.h>
6
7/* stdin */
Heinrich Schuchardtc4954fb2020-10-07 18:11:48 +02008int getchar(void);
Masahiro Yamada5e882e92017-09-16 14:10:39 +09009int tstc(void);
10
11/* stdout */
12#if !defined(CONFIG_SPL_BUILD) || \
Simon Glassf4d60392021-08-08 12:20:12 -060013 (defined(CONFIG_TPL_BUILD) && defined(CONFIG_TPL_SERIAL)) || \
Masahiro Yamada5e882e92017-09-16 14:10:39 +090014 (defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) && \
Simon Glassf4d60392021-08-08 12:20:12 -060015 defined(CONFIG_SPL_SERIAL))
Masahiro Yamada5e882e92017-09-16 14:10:39 +090016void putc(const char c);
17void puts(const char *s);
Pali Rohár5aceb262022-09-05 11:31:17 +020018#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
19void flush(void);
20#else
21static inline void flush(void) {}
22#endif
Masahiro Yamada5e882e92017-09-16 14:10:39 +090023int __printf(1, 2) printf(const char *fmt, ...);
24int vprintf(const char *fmt, va_list args);
25#else
26static inline void putc(const char c)
27{
28}
29
30static inline void puts(const char *s)
31{
32}
33
Pali Rohár5aceb262022-09-05 11:31:17 +020034static inline void flush(void)
35{
36}
37
Masahiro Yamada5e882e92017-09-16 14:10:39 +090038static inline int __printf(1, 2) printf(const char *fmt, ...)
39{
40 return 0;
41}
42
43static inline int vprintf(const char *fmt, va_list args)
44{
45 return 0;
46}
47#endif
48
Raymond Mao24da8312024-05-16 14:11:52 -070049/**
50 * Format a string and place it in a buffer
51 *
52 * @buf: The buffer to place the result into
53 * @size: The size of the buffer, including the trailing null space
54 * @fmt: The format string to use
55 * @...: Arguments for the format string
56 * Return: the number of characters which would be
57 * generated for the given input, excluding the trailing null,
58 * as per ISO C99. If the return is greater than or equal to
59 * @size, the resulting string is truncated.
60 *
61 * See the vsprintf() documentation for format string extensions over C99.
62 */
63int snprintf(char *buf, size_t size, const char *fmt, ...)
64 __attribute__ ((format (__printf__, 3, 4)));
65
Masahiro Yamada5e882e92017-09-16 14:10:39 +090066/*
67 * FILE based functions (can only be used AFTER relocation!)
68 */
69#define stdin 0
70#define stdout 1
71#define stderr 2
72#define MAX_FILES 3
73
74/* stderr */
75#define eputc(c) fputc(stderr, c)
76#define eputs(s) fputs(stderr, s)
Pali Rohár5aceb262022-09-05 11:31:17 +020077#define eflush() fflush(stderr)
Masahiro Yamada5e882e92017-09-16 14:10:39 +090078#define eprintf(fmt, args...) fprintf(stderr, fmt, ##args)
79
80int __printf(2, 3) fprintf(int file, const char *fmt, ...);
81void fputs(int file, const char *s);
82void fputc(int file, const char c);
Pali Rohár5aceb262022-09-05 11:31:17 +020083#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT
84void fflush(int file);
85#else
86static inline void fflush(int file) {}
87#endif
Masahiro Yamada5e882e92017-09-16 14:10:39 +090088int ftstc(int file);
89int fgetc(int file);
90
91#endif /* __STDIO_H */