/lib/firmware/carl9170fw/carlfw/src/printf.c is in linux-firmware 1.127.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | /*
* Copyright (C) 2004,2008 Kustaa Nyholm
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "carl9170.h"
#include "printf.h"
#ifdef CONFIG_CARL9170FW_PRINTF
static char *bf;
static char buf[12];
static unsigned int num;
static char uc;
static char zs;
static void out(const char c)
{
*bf++ = c;
}
static void outDgt(const char dgt)
{
out(dgt + (dgt < 10 ? '0' : (uc ? 'A' : 'a') - 10));
zs = 1;
}
static void divOut(const unsigned int d)
{
unsigned char dgt = 0;
while (num >= d) {
num -= d;
dgt++;
}
if (zs || dgt > 0)
outDgt(dgt);
}
void tfp_printf(const char *fmt, ...)
{
va_list va;
char *p;
unsigned int i;
char ch;
va_start(va, fmt);
while ((ch = *(fmt++))) {
if (ch != '%') {
putcharacter(ch);
} else {
char lz = 0;
char w = 0;
ch = *(fmt++);
if (ch == '0') {
ch = *(fmt++);
lz = 1;
}
if (ch >= '0' && ch <= '9') {
w = 0;
while (ch >= '0' && ch <= '9') {
w = (((w << 2) + w) << 1) + ch - '0';
ch = *fmt++;
}
}
bf = buf;
p = bf;
zs = 0;
switch (ch) {
case 0:
goto abort;
case 'u':
case 'd':
num = va_arg(va, unsigned int);
if (ch == 'd' && (int) num < 0) {
num = -(int)num;
out('-');
}
for (i = 100000000; i != 1; i /= 10)
divOut(i);
outDgt(num);
break;
case 'p':
case 'x':
case 'X':
uc = ch == 'X';
num = va_arg(va, unsigned int);
for (i = 0x10000000; i != 0x1; i >>= 4)
divOut(i);
outDgt(num);
break;
case 'c':
out((char)(va_arg(va, int)));
break;
case 's':
p = va_arg(va, char*);
break;
case '%':
out('%');
break;
default:
break;
}
*bf = 0;
bf = p;
while (*bf++ && w > 0)
w--;
while (w-- > 0)
putcharacter(lz ? '0' : ' ');
while ((ch = *p++))
putcharacter(ch);
}
}
abort:
putcharacter('\0');
va_end(va);
}
#else
void min_printf(const char *fmt, ...)
{
char ch;
do {
ch = *(fmt++);
putcharacter(ch);
} while (ch);
}
#endif /* CONFIG_CARL9170FW_PRINTF */
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