1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <stdarg.h>
33 #include <stdio.h>
34 #include "los_interrupt.h"
35
36 #define BUFSIZE 256
37
UartPutc(CHAR c)38 STATIC VOID UartPutc(CHAR c)
39 {
40 (VOID)uart_tx_one_char(c);
41 }
42
FuncPuts(const CHAR * s,VOID (* funcPutc)(CHAR c))43 STATIC VOID FuncPuts(const CHAR *s, VOID (*funcPutc)(CHAR c))
44 {
45 UINT32 intSave;
46
47 intSave = LOS_IntLock();
48 while (*s) {
49 funcPutc(*s++);
50 }
51 LOS_IntRestore(intSave);
52 }
53
printf(const CHAR * fmt,...)54 INT32 printf(const CHAR *fmt, ...)
55 {
56 CHAR buf[BUFSIZE] = { 0 };
57 va_list ap;
58 va_start(ap, fmt);
59 int len = vsnprintf_s(buf, sizeof(buf), BUFSIZE - 1, fmt, ap);
60 va_end(ap);
61 if (len > 0) {
62 FuncPuts(buf, UartPutc);
63 } else {
64 FuncPuts("printf error!\n", UartPutc);
65 }
66 return len;
67 }
68
69