1 /*
2 * Copyright © 2021, Keith Packard <keithp@keithp.com>
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include "picolibc-hooks.h"
8
9 struct cb_bits {
10 FILE f;
11 cbprintf_cb out;
12 void *ctx;
13 };
14
cbputc(char c,FILE * _s)15 static int cbputc(char c, FILE *_s)
16 {
17 struct cb_bits *s = (struct cb_bits *) _s;
18
19 (*s->out) (c, s->ctx);
20 return 0;
21 }
22
cbvprintf(cbprintf_cb out,void * ctx,const char * fp,va_list ap)23 int cbvprintf(cbprintf_cb out, void *ctx, const char *fp, va_list ap)
24 {
25 struct cb_bits s = {
26 .f = FDEV_SETUP_STREAM(cbputc, NULL, NULL, _FDEV_SETUP_WRITE),
27 .out = out,
28 .ctx = ctx,
29 };
30 return vfprintf(&s.f, fp, ap);
31 }
32
