1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/*
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <debug.h>
#include <stdarg.h>
#include <stdint.h>
/***********************************************************
* The tf_printf implementation for all BL stages
***********************************************************/
static void unsigned_num_print(unsigned long int unum, unsigned int radix)
{
/* Just need enough space to store 64 bit decimal integer */
unsigned char num_buf[20];
int i = 0 , rem;
do {
rem = unum % radix;
if (rem < 0xa)
num_buf[i++] = '0' + rem;
else
num_buf[i++] = 'a' + (rem - 0xa);
} while (unum /= radix);
while (--i >= 0)
putchar(num_buf[i]);
}
static void string_print(const char *str)
{
while (*str)
putchar(*str++);
}
/*******************************************************************
* Reduced format print for Trusted firmware.
* The following formats are supported by this print
* %x - 32 bit hexadecimal format
* %llx and %lx -64 bit hexadecimal format
* %s - string format
* %d or %i - signed 32 bit decimal format
* %u - unsigned 32 bit decimal format
* %ld and %lld - signed 64 bit decimal format
* %lu and %llu - unsigned 64 bit decimal format
* Exits on all other formats.
*******************************************************************/
void tf_printf(const char *fmt, ...)
{
va_list args;
int bit64;
int64_t num;
uint64_t unum;
char *str;
va_start(args, fmt);
while (*fmt) {
bit64 = 0;
if (*fmt == '%') {
fmt++;
/* Check the format specifier */
loop:
switch (*fmt) {
case 'i': /* Fall through to next one */
case 'd':
if (bit64)
num = va_arg(args, int64_t);
else
num = va_arg(args, int32_t);
if (num < 0) {
putchar('-');
unum = (unsigned long int)-num;
} else
unum = (unsigned long int)num;
unsigned_num_print(unum, 10);
break;
case 's':
str = va_arg(args, char *);
string_print(str);
break;
case 'x':
if (bit64)
unum = va_arg(args, uint64_t);
else
unum = va_arg(args, uint32_t);
unsigned_num_print(unum, 16);
break;
case 'p':
unum =(uint64_t)va_arg(args, void *);
unsigned_num_print(unum, 16);
break;
case 'z':
fmt++;
bit64 = sizeof(long) == 0x8 ? 1:0;
goto loop;
case 'l':
bit64 = 1;
fmt++;
goto loop;
case 'u':
if (bit64)
unum = va_arg(args, uint64_t);
else
unum = va_arg(args, uint32_t);
unsigned_num_print(unum, 10);
break;
default:
/* Exit on any other format specifier */
goto exit;
}
fmt++;
continue;
}
//for windos newline"\r\n"
else if (*fmt == '\n')
{
putchar('\r');
}
putchar(*fmt++);
}
exit:
va_end(args);
}
|
