+// SPDX-License-Identifier: LGPL-2.1+
/*
* Tiny printf version for SPL
*
* http://www.sparetimelabs.com/printfrevisited/printfrevisited.php
*
* Copyright (C) 2004,2008 Kustaa Nyholm
- *
- * SPDX-License-Identifier: LGPL-2.1+
*/
#include <common.h>
#include <stdarg.h>
#include <serial.h>
+#include <linux/ctype.h>
struct printf_info {
char *bf; /* Digit buffer */
void (*putc)(struct printf_info *info, char ch);
};
-static void putc_normal(struct printf_info *info, char ch)
-{
- putc(ch);
-}
-
static void out(struct printf_info *info, char c)
{
*info->bf++ = c;
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 __maybe_unused 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;
goto abort;
case 'u':
case 'd':
+ case 'i':
div = 1000000000;
if (islong) {
num = va_arg(va, unsigned long);
num = va_arg(va, unsigned int);
}
- if (ch == 'd') {
+ if (ch != 'u') {
if (islong && (long)num < 0) {
num = -(long)num;
out(info, '-');
div_out(info, &num, div);
}
break;
+ case 'p':
+#ifdef DEBUG
+ pointer(info, fmt, va_arg(va, void *));
+ /*
+ * Skip this because it pulls in _ctype which is
+ * 256 bytes, and we don't generally implement
+ * pointer anyway
+ */
+ while (isalnum(fmt[0]))
+ fmt++;
+ break;
+#else
+ islong = true;
+ /* no break */
+#endif
case 'x':
if (islong) {
num = va_arg(va, unsigned long);
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;
return ret;
}
+#endif
static void putc_outstr(struct printf_info *info, char ch)
{
return ret;
}
+#if CONFIG_IS_ENABLED(LOG)
+/* Note that size is ignored */
+int vsnprintf(char *buf, size_t size, const char *fmt, va_list va)
+{
+ struct printf_info info;
+ int ret;
+
+ info.outstr = buf;
+ info.putc = putc_outstr;
+ ret = _vprintf(&info, fmt, va);
+ *info.outstr = '\0';
+
+ return ret;
+}
+#endif
+
/* Note that size is ignored */
int snprintf(char *buf, size_t size, const char *fmt, ...)
{
return ret;
}
-void __assert_fail(const char *assertion, const char *file, unsigned line,
- const char *function)
+void print_grouped_ull(unsigned long long int_val, int digits)
{
- /* This will not return */
- printf("%s:%u: %s: Assertion `%s' failed.", file, line, function,
- assertion);
- hang();
+ /* Don't try to print the upper 32-bits */
+ printf("%ld ", (ulong)int_val);
}
projects / oweals / u-boot.git / blobdiff