| 1 |
1026 |
ivang |
/*-------------------------------------------------------------------------+
|
| 2 |
|
|
| printk.c v1.1 - PC386 BSP - 1997/08/07
|
| 3 |
|
|
+--------------------------------------------------------------------------+
|
| 4 |
|
|
| (C) Copyright 1997 -
|
| 5 |
|
|
| - NavIST Group - Real-Time Distributed Systems and Industrial Automation
|
| 6 |
|
|
|
|
| 7 |
|
|
| http://pandora.ist.utl.pt
|
| 8 |
|
|
|
|
| 9 |
|
|
| Instituto Superior Tecnico * Lisboa * PORTUGAL
|
| 10 |
|
|
+--------------------------------------------------------------------------+
|
| 11 |
|
|
| Disclaimer:
|
| 12 |
|
|
|
|
| 13 |
|
|
| This file is provided "AS IS" without warranty of any kind, either
|
| 14 |
|
|
| expressed or implied.
|
| 15 |
|
|
+--------------------------------------------------------------------------+
|
| 16 |
|
|
| This code is based on code by: Jose Rufino - IST
|
| 17 |
|
|
|
|
| 18 |
|
|
| printk.c,v 1.6 2002/04/08 18:29:16 joel Exp
|
| 19 |
|
|
+--------------------------------------------------------------------------*/
|
| 20 |
|
|
|
| 21 |
|
|
#if HAVE_CONFIG_H
|
| 22 |
|
|
#include "config.h"
|
| 23 |
|
|
#endif
|
| 24 |
|
|
|
| 25 |
|
|
#include <stdarg.h>
|
| 26 |
|
|
#include <stdio.h>
|
| 27 |
|
|
#include <rtems/bspIo.h>
|
| 28 |
|
|
|
| 29 |
|
|
/*-------------------------------------------------------------------------+
|
| 30 |
|
|
| Function: printNum
|
| 31 |
|
|
| Description: print number in a given base.
|
| 32 |
|
|
| Global Variables: None.
|
| 33 |
|
|
| Arguments: num - number to print, base - base used to print the number.
|
| 34 |
|
|
| Returns: Nothing.
|
| 35 |
|
|
+--------------------------------------------------------------------------*/
|
| 36 |
|
|
static void
|
| 37 |
|
|
printNum(long unsigned int num, int base, int sign, int maxwidth, int lead)
|
| 38 |
|
|
{
|
| 39 |
|
|
long unsigned int n;
|
| 40 |
|
|
int count;
|
| 41 |
|
|
char toPrint[20];
|
| 42 |
|
|
|
| 43 |
|
|
if ( (sign == 1) && ((long)num < 0) ) {
|
| 44 |
|
|
BSP_output_char('-');
|
| 45 |
|
|
num = -num;
|
| 46 |
|
|
if (maxwidth) maxwidth--;
|
| 47 |
|
|
}
|
| 48 |
|
|
|
| 49 |
|
|
count = 0;
|
| 50 |
|
|
while ((n = num / base) > 0) {
|
| 51 |
|
|
toPrint[count++] = (num - (n*base));
|
| 52 |
|
|
num = n ;
|
| 53 |
|
|
}
|
| 54 |
|
|
toPrint[count++] = num;
|
| 55 |
|
|
|
| 56 |
|
|
if (maxwidth) {
|
| 57 |
|
|
for (n=maxwidth-count ; n ; n-- )
|
| 58 |
|
|
BSP_output_char(lead);
|
| 59 |
|
|
}
|
| 60 |
|
|
|
| 61 |
|
|
for (n = 0; n < count; n++){
|
| 62 |
|
|
BSP_output_char("0123456789ABCDEF"[(int)(toPrint[count-(n+1)])]);
|
| 63 |
|
|
}
|
| 64 |
|
|
} /* printNum */
|
| 65 |
|
|
|
| 66 |
|
|
|
| 67 |
|
|
/*-------------------------------------------------------------------------+
|
| 68 |
|
|
| Function: printk
|
| 69 |
|
|
| Description: a simplified version of printf intended for use when the
|
| 70 |
|
|
console is not yet initialized or in ISR's.
|
| 71 |
|
|
| Global Variables: None.
|
| 72 |
|
|
| Arguments: as in printf: fmt - format string, ... - unnamed arguments.
|
| 73 |
|
|
| Returns: Nothing.
|
| 74 |
|
|
+--------------------------------------------------------------------------*/
|
| 75 |
|
|
void
|
| 76 |
|
|
printk(char *fmt, ...)
|
| 77 |
|
|
{
|
| 78 |
|
|
va_list ap; /* points to each unnamed argument in turn */
|
| 79 |
|
|
char c, *str;
|
| 80 |
|
|
int lflag, base, sign, width, lead;
|
| 81 |
|
|
/* unsigned int level; */
|
| 82 |
|
|
|
| 83 |
|
|
/* _CPU_ISR_Disable(level); */
|
| 84 |
|
|
|
| 85 |
|
|
va_start(ap, fmt); /* make ap point to 1st unnamed arg */
|
| 86 |
|
|
for (; *fmt != '\0'; fmt++)
|
| 87 |
|
|
{
|
| 88 |
|
|
lflag = 0;
|
| 89 |
|
|
base = 0;
|
| 90 |
|
|
sign = 0;
|
| 91 |
|
|
width = 0;
|
| 92 |
|
|
lead = ' ';
|
| 93 |
|
|
if (*fmt == '%')
|
| 94 |
|
|
{
|
| 95 |
|
|
fmt++;
|
| 96 |
|
|
if (*fmt == '0' ) {
|
| 97 |
|
|
lead = '0';
|
| 98 |
|
|
fmt++;
|
| 99 |
|
|
}
|
| 100 |
|
|
while (*fmt >= '0' && *fmt <= '9' ) {
|
| 101 |
|
|
width *= 10;
|
| 102 |
|
|
width += (*fmt - '0');
|
| 103 |
|
|
fmt++;
|
| 104 |
|
|
}
|
| 105 |
|
|
|
| 106 |
|
|
if ((c = *fmt) == 'l')
|
| 107 |
|
|
{
|
| 108 |
|
|
lflag = 1;
|
| 109 |
|
|
c = *++fmt;
|
| 110 |
|
|
}
|
| 111 |
|
|
switch (c)
|
| 112 |
|
|
{
|
| 113 |
|
|
case 'o': case 'O': base = 8; sign = 0; break;
|
| 114 |
|
|
case 'd': case 'D': base = 10; sign = 1; break;
|
| 115 |
|
|
case 'u': case 'U': base = 10; sign = 0; break;
|
| 116 |
|
|
case 'x': case 'X': base = 16; sign = 0; break;
|
| 117 |
|
|
case 's':
|
| 118 |
|
|
for (str = va_arg(ap, char *); *str; str++)
|
| 119 |
|
|
BSP_output_char(*str);
|
| 120 |
|
|
break;
|
| 121 |
|
|
case 'c':
|
| 122 |
|
|
#if 0
|
| 123 |
|
|
#if defined(_TMS320C3x) || defined(_TMS320C4x)
|
| 124 |
|
|
BSP_output_char(va_arg(ap, int));
|
| 125 |
|
|
#else
|
| 126 |
|
|
BSP_output_char(va_arg(ap, char));
|
| 127 |
|
|
#endif
|
| 128 |
|
|
#else
|
| 129 |
|
|
BSP_output_char(va_arg(ap, int));
|
| 130 |
|
|
#endif
|
| 131 |
|
|
break;
|
| 132 |
|
|
default:
|
| 133 |
|
|
BSP_output_char(c);
|
| 134 |
|
|
break;
|
| 135 |
|
|
} /* switch*/
|
| 136 |
|
|
|
| 137 |
|
|
if (base)
|
| 138 |
|
|
printNum(lflag ? va_arg(ap, long int) : (long int)va_arg(ap, int),
|
| 139 |
|
|
base, sign, width, lead);
|
| 140 |
|
|
}
|
| 141 |
|
|
else
|
| 142 |
|
|
{
|
| 143 |
|
|
BSP_output_char(*fmt);
|
| 144 |
|
|
}
|
| 145 |
|
|
}
|
| 146 |
|
|
va_end(ap); /* clean up when done */
|
| 147 |
|
|
/* _CPU_ISR_Enable(level); */
|
| 148 |
|
|
|
| 149 |
|
|
} /* printk */
|
| 150 |
|
|
|
