upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
384 lines
7.1 KiB
384 lines
7.1 KiB
// SPDX-License-Identifier: LGPL-2.1+
|
|
/*
|
|
* Tiny printf version for SPL
|
|
*
|
|
* Copied from:
|
|
* http://www.sparetimelabs.com/printfrevisited/printfrevisited.php
|
|
*
|
|
* Copyright (C) 2004,2008 Kustaa Nyholm
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <stdarg.h>
|
|
#include <serial.h>
|
|
#include <linux/ctype.h>
|
|
|
|
struct printf_info {
|
|
char *bf; /* Digit buffer */
|
|
char zs; /* non-zero if a digit has been written */
|
|
char *outstr; /* Next output position for sprintf() */
|
|
|
|
/* Output a character */
|
|
void (*putc)(struct printf_info *info, char ch);
|
|
};
|
|
|
|
static void out(struct printf_info *info, char c)
|
|
{
|
|
*info->bf++ = c;
|
|
}
|
|
|
|
static void out_dgt(struct printf_info *info, char dgt)
|
|
{
|
|
out(info, dgt + (dgt < 10 ? '0' : 'a' - 10));
|
|
info->zs = 1;
|
|
}
|
|
|
|
static void div_out(struct printf_info *info, unsigned long *num,
|
|
unsigned long div)
|
|
{
|
|
unsigned char dgt = 0;
|
|
|
|
while (*num >= div) {
|
|
*num -= div;
|
|
dgt++;
|
|
}
|
|
|
|
if (info->zs || dgt > 0)
|
|
out_dgt(info, dgt);
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_NET_SUPPORT
|
|
static void string(struct printf_info *info, char *s)
|
|
{
|
|
char ch;
|
|
|
|
while ((ch = *s++))
|
|
out(info, ch);
|
|
}
|
|
|
|
static const char hex_asc[] = "0123456789abcdef";
|
|
#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
|
|
#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4]
|
|
|
|
static inline char *pack_hex_byte(char *buf, u8 byte)
|
|
{
|
|
*buf++ = hex_asc_hi(byte);
|
|
*buf++ = hex_asc_lo(byte);
|
|
return buf;
|
|
}
|
|
|
|
static void mac_address_string(struct printf_info *info, u8 *addr,
|
|
bool separator)
|
|
{
|
|
/* (6 * 2 hex digits), 5 colons and trailing zero */
|
|
char mac_addr[6 * 3];
|
|
char *p = mac_addr;
|
|
int i;
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
p = pack_hex_byte(p, addr[i]);
|
|
if (separator && i != 5)
|
|
*p++ = ':';
|
|
}
|
|
*p = '\0';
|
|
|
|
string(info, mac_addr);
|
|
}
|
|
|
|
static char *put_dec_trunc(char *buf, unsigned int q)
|
|
{
|
|
unsigned int d3, d2, d1, d0;
|
|
d1 = (q >> 4) & 0xf;
|
|
d2 = (q >> 8) & 0xf;
|
|
d3 = (q >> 12);
|
|
|
|
d0 = 6 * (d3 + d2 + d1) + (q & 0xf);
|
|
q = (d0 * 0xcd) >> 11;
|
|
d0 = d0 - 10 * q;
|
|
*buf++ = d0 + '0'; /* least significant digit */
|
|
d1 = q + 9 * d3 + 5 * d2 + d1;
|
|
if (d1 != 0) {
|
|
q = (d1 * 0xcd) >> 11;
|
|
d1 = d1 - 10 * q;
|
|
*buf++ = d1 + '0'; /* next digit */
|
|
|
|
d2 = q + 2 * d2;
|
|
if ((d2 != 0) || (d3 != 0)) {
|
|
q = (d2 * 0xd) >> 7;
|
|
d2 = d2 - 10 * q;
|
|
*buf++ = d2 + '0'; /* next digit */
|
|
|
|
d3 = q + 4 * d3;
|
|
if (d3 != 0) {
|
|
q = (d3 * 0xcd) >> 11;
|
|
d3 = d3 - 10 * q;
|
|
*buf++ = d3 + '0'; /* next digit */
|
|
if (q != 0)
|
|
*buf++ = q + '0'; /* most sign. digit */
|
|
}
|
|
}
|
|
}
|
|
return buf;
|
|
}
|
|
|
|
static void ip4_addr_string(struct printf_info *info, u8 *addr)
|
|
{
|
|
/* (4 * 3 decimal digits), 3 dots and trailing zero */
|
|
char ip4_addr[4 * 4];
|
|
char temp[3]; /* hold each IP quad in reverse order */
|
|
char *p = ip4_addr;
|
|
int i, digits;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
digits = put_dec_trunc(temp, addr[i]) - temp;
|
|
/* reverse the digits in the quad */
|
|
while (digits--)
|
|
*p++ = temp[digits];
|
|
if (i != 3)
|
|
*p++ = '.';
|
|
}
|
|
*p = '\0';
|
|
|
|
string(info, ip4_addr);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Show a '%p' thing. A kernel extension is that the '%p' is followed
|
|
* by an extra set of characters that are extended format
|
|
* specifiers.
|
|
*
|
|
* Right now we handle:
|
|
*
|
|
* - 'M' For a 6-byte MAC address, it prints the address in the
|
|
* usual colon-separated hex notation.
|
|
* - 'm' Same as above except there is no colon-separator.
|
|
* - 'I4'for IPv4 addresses printed in the usual way (dot-separated
|
|
* decimal).
|
|
*/
|
|
|
|
static void pointer(struct printf_info *info, const char *fmt, void *ptr)
|
|
{
|
|
#ifdef DEBUG
|
|
unsigned long num = (uintptr_t)ptr;
|
|
unsigned long div;
|
|
#endif
|
|
|
|
switch (*fmt) {
|
|
#ifdef DEBUG
|
|
case 'a':
|
|
|
|
switch (fmt[1]) {
|
|
case 'p':
|
|
default:
|
|
num = *(phys_addr_t *)ptr;
|
|
break;
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef CONFIG_SPL_NET_SUPPORT
|
|
case 'm':
|
|
return mac_address_string(info, ptr, false);
|
|
case 'M':
|
|
return mac_address_string(info, ptr, true);
|
|
case 'I':
|
|
if (fmt[1] == '4')
|
|
return ip4_addr_string(info, ptr);
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
#ifdef DEBUG
|
|
div = 1UL << (sizeof(long) * 8 - 4);
|
|
for (; div; div /= 0x10)
|
|
div_out(info, &num, div);
|
|
#endif
|
|
}
|
|
|
|
static int _vprintf(struct printf_info *info, const char *fmt, va_list va)
|
|
{
|
|
char ch;
|
|
char *p;
|
|
unsigned long num;
|
|
char buf[12];
|
|
unsigned long div;
|
|
|
|
while ((ch = *(fmt++))) {
|
|
if (ch != '%') {
|
|
info->putc(info, ch);
|
|
} else {
|
|
bool lz = false;
|
|
int width = 0;
|
|
bool islong = false;
|
|
|
|
ch = *(fmt++);
|
|
if (ch == '-')
|
|
ch = *(fmt++);
|
|
|
|
if (ch == '0') {
|
|
ch = *(fmt++);
|
|
lz = 1;
|
|
}
|
|
|
|
if (ch >= '0' && ch <= '9') {
|
|
width = 0;
|
|
while (ch >= '0' && ch <= '9') {
|
|
width = (width * 10) + ch - '0';
|
|
ch = *fmt++;
|
|
}
|
|
}
|
|
if (ch == 'l') {
|
|
ch = *(fmt++);
|
|
islong = true;
|
|
}
|
|
|
|
info->bf = buf;
|
|
p = info->bf;
|
|
info->zs = 0;
|
|
|
|
switch (ch) {
|
|
case '\0':
|
|
goto abort;
|
|
case 'u':
|
|
case 'd':
|
|
div = 1000000000;
|
|
if (islong) {
|
|
num = va_arg(va, unsigned long);
|
|
if (sizeof(long) > 4)
|
|
div *= div * 10;
|
|
} else {
|
|
num = va_arg(va, unsigned int);
|
|
}
|
|
|
|
if (ch == 'd') {
|
|
if (islong && (long)num < 0) {
|
|
num = -(long)num;
|
|
out(info, '-');
|
|
} else if (!islong && (int)num < 0) {
|
|
num = -(int)num;
|
|
out(info, '-');
|
|
}
|
|
}
|
|
if (!num) {
|
|
out_dgt(info, 0);
|
|
} else {
|
|
for (; div; div /= 10)
|
|
div_out(info, &num, div);
|
|
}
|
|
break;
|
|
case 'x':
|
|
if (islong) {
|
|
num = va_arg(va, unsigned long);
|
|
div = 1UL << (sizeof(long) * 8 - 4);
|
|
} else {
|
|
num = va_arg(va, unsigned int);
|
|
div = 0x10000000;
|
|
}
|
|
if (!num) {
|
|
out_dgt(info, 0);
|
|
} else {
|
|
for (; div; div /= 0x10)
|
|
div_out(info, &num, div);
|
|
}
|
|
break;
|
|
case 'c':
|
|
out(info, (char)(va_arg(va, int)));
|
|
break;
|
|
case 's':
|
|
p = va_arg(va, char*);
|
|
break;
|
|
case 'p':
|
|
pointer(info, fmt, va_arg(va, void *));
|
|
while (isalnum(fmt[0]))
|
|
fmt++;
|
|
break;
|
|
case '%':
|
|
out(info, '%');
|
|
default:
|
|
break;
|
|
}
|
|
|
|
*info->bf = 0;
|
|
info->bf = p;
|
|
while (*info->bf++ && width > 0)
|
|
width--;
|
|
while (width-- > 0)
|
|
info->putc(info, lz ? '0' : ' ');
|
|
if (p) {
|
|
while ((ch = *p++))
|
|
info->putc(info, ch);
|
|
}
|
|
}
|
|
}
|
|
|
|
abort:
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(PRINTF)
|
|
static void putc_normal(struct printf_info *info, char ch)
|
|
{
|
|
putc(ch);
|
|
}
|
|
|
|
int vprintf(const char *fmt, va_list va)
|
|
{
|
|
struct printf_info info;
|
|
|
|
info.putc = putc_normal;
|
|
return _vprintf(&info, fmt, va);
|
|
}
|
|
|
|
int printf(const char *fmt, ...)
|
|
{
|
|
struct printf_info info;
|
|
|
|
va_list va;
|
|
int ret;
|
|
|
|
info.putc = putc_normal;
|
|
va_start(va, fmt);
|
|
ret = _vprintf(&info, fmt, va);
|
|
va_end(va);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static void putc_outstr(struct printf_info *info, char ch)
|
|
{
|
|
*info->outstr++ = ch;
|
|
}
|
|
|
|
int sprintf(char *buf, const char *fmt, ...)
|
|
{
|
|
struct printf_info info;
|
|
va_list va;
|
|
int ret;
|
|
|
|
va_start(va, fmt);
|
|
info.outstr = buf;
|
|
info.putc = putc_outstr;
|
|
ret = _vprintf(&info, fmt, va);
|
|
va_end(va);
|
|
*info.outstr = '\0';
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Note that size is ignored */
|
|
int snprintf(char *buf, size_t size, const char *fmt, ...)
|
|
{
|
|
struct printf_info info;
|
|
va_list va;
|
|
int ret;
|
|
|
|
va_start(va, fmt);
|
|
info.outstr = buf;
|
|
info.putc = putc_outstr;
|
|
ret = _vprintf(&info, fmt, va);
|
|
va_end(va);
|
|
*info.outstr = '\0';
|
|
|
|
return ret;
|
|
}
|
|
|