patch-1.3.4 linux/arch/sparc/prom/printf.c

• Lines: 109
• Date: Thu Jun 8 07:14:32 1995
• Orig file: v1.3.3/linux/arch/sparc/prom/printf.c
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.3/linux/arch/sparc/prom/printf.c linux/arch/sparc/prom/printf.c
@@ -0,0 +1,108 @@
+/* printf.c:  Internal prom library printf facility.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+/* This routine is internal to the prom library, no one else should know
+ * about or use it!  It's simple and smelly anyway....
+ */
+
+#include <stdarg.h>
+
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+
+char hexstring[] = "0123456789abcdef";
+
+void
+prom_printf(char *fmt, ...)
+{
+	va_list args;
+	unsigned int ui_val;
+	int i_val, n_ctr;
+	char c_val;
+	char nstr_buf[32];
+	char *s_val;
+	
+	va_start(args, fmt);
+	while(*fmt) {
+		if(*fmt != '%') {
+			if(*fmt == '\n')
+				prom_putchar('\r');
+			prom_putchar(*fmt++);
+			continue;
+		}
+
+		fmt++;
+		if(!*fmt) break;
+		n_ctr = 0;
+		switch(*fmt) {
+		case 'c':
+			c_val = va_arg(args, char);
+			if(c_val == '\n')
+				prom_putchar('\r');
+			prom_putchar(c_val);
+			fmt++;
+			break;
+		case 's':
+			s_val = va_arg(args, char *);
+			while(*s_val != 0) {
+				prom_putchar(*s_val);
+				s_val++;
+			}
+			fmt++;
+			break;
+		case 'd':
+			/* Base 10 */
+			i_val = va_arg(args, int);
+			if(i_val==0x0)
+				prom_putchar('0');
+			else
+				while(i_val != 0x0) {
+					nstr_buf[n_ctr] = hexstring[i_val%0xa];
+					i_val = ((unsigned long)i_val) / (unsigned) 0xa;
+					n_ctr++;
+				};
+			while(--n_ctr >= 0)
+				prom_putchar(nstr_buf[n_ctr]);
+			fmt++;
+			break;
+		case 'x':
+			/* Base 16 */
+			ui_val = va_arg(args, unsigned int);
+			if(ui_val==0x0)
+				prom_putchar('0');
+			else
+				while(ui_val != 0x0) {
+					nstr_buf[n_ctr] = hexstring[ui_val%0x10];
+					ui_val = ((unsigned long) ui_val) / (unsigned) 0x10;
+					n_ctr++;
+				};
+			while(--n_ctr >= 0)
+				prom_putchar(nstr_buf[n_ctr]);
+			fmt++;
+			break;
+		case 'o':
+			/* Base 8 */
+			ui_val = va_arg(args, unsigned int);
+			if(ui_val==0x0)
+				prom_putchar('0');
+			else
+				while(ui_val != 0x0) {
+					nstr_buf[n_ctr] = hexstring[ui_val%0x8];
+					ui_val = ((unsigned long) ui_val) / (unsigned) 0x8;
+				};
+			while(--n_ctr >= 0)
+				prom_putchar(nstr_buf[n_ctr]);
+			fmt++;
+			break;
+		default:
+			/* Uh oh, something we can't handle... skip it */
+			fmt++;
+			break;
+		};
+	}
+
+	/* We are done... */
+	return;
+}