patch-2.1.80 linux/include/asm-arm/delay.h

• Lines: 33
• Date: Tue Jan 20 16:39:42 1998
• Orig file: v2.1.79/linux/include/asm-arm/delay.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.79/linux/include/asm-arm/delay.h linux/include/asm-arm/delay.h
@@ -0,0 +1,32 @@
+#ifndef __ASM_ARM_DELAY_H
+#define __ASM_ARM_DELAY_H
+
+/*
+ * Copyright (C) 1995 Russell King
+ *
+ * Delay routines, using a pre-computed "loops_per_second" value.
+ */
+
+extern void __delay(int loops);
+
+/*
+ * division by multiplication: you don't have to worry about
+ * loss of precision.
+ *
+ * Use only for very small delays ( < 1 msec).  Should probably use a
+ * lookup table, really, as the multiplications take much too long with
+ * short delays.  This is a "reasonable" implementation, though (and the
+ * first constant multiplications gets optimized away if the delay is
+ * a constant)
+ */
+extern void udelay(unsigned long usecs);
+
+extern __inline__ unsigned long muldiv(unsigned long a, unsigned long b, unsigned long c)
+{
+	return a * b / c;
+}
+
+	
+
+#endif /* defined(_ARM_DELAY_H) */
+