patch-2.3.99-pre9 linux/arch/sh/kernel/io_generic.c

• Lines: 100
• Date: Sat May 20 12:05:29 2000
• Orig file: v2.3.99-pre8/linux/arch/sh/kernel/io_generic.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.99-pre8/linux/arch/sh/kernel/io_generic.c linux/arch/sh/kernel/io_generic.c
@@ -0,0 +1,99 @@
+/* $Id: io_generic.c,v 1.3 2000/05/07 23:31:58 gniibe Exp $
+ *
+ * linux/arch/sh/kernel/io_generic.c
+ *
+ * Copyright (C) 2000  Niibe Yutaka
+ *
+ * Generic I/O routine.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/io.h>
+
+#define PORT2ADDR(x) (CONFIG_IOPORT_START+(x))
+
+static inline void delay(void)
+{
+	ctrl_inw(0xa0000000);
+}
+
+unsigned long inb(unsigned int port)
+{
+	return *(volatile unsigned char*)PORT2ADDR(port);
+}
+
+unsigned long inb_p(unsigned int port)
+{
+	unsigned long v = *(volatile unsigned char*)PORT2ADDR(port);
+
+	delay();
+	return v;
+}
+
+unsigned long inw(unsigned int port)
+{
+	return *(volatile unsigned short*)PORT2ADDR(port);
+}
+
+unsigned long inl(unsigned int port)
+{
+	return *(volatile unsigned long*)PORT2ADDR(port);
+}
+
+void insb(unsigned int port, void *buffer, unsigned long count)
+{
+	unsigned char *buf=buffer;
+	while(count--) *buf++=inb(port);
+}
+
+void insw(unsigned int port, void *buffer, unsigned long count)
+{
+	unsigned short *buf=buffer;
+	while(count--) *buf++=inw(port);
+}
+
+void insl(unsigned int port, void *buffer, unsigned long count)
+{
+	unsigned long *buf=buffer;
+	while(count--) *buf++=inl(port);
+}
+
+void outb(unsigned long b, unsigned int port)
+{
+	*(volatile unsigned char*)PORT2ADDR(port) = b;
+}
+
+void outb_p(unsigned long b, unsigned int port)
+{
+	*(volatile unsigned char*)PORT2ADDR(port) = b;
+	delay();
+}
+
+void outw(unsigned long b, unsigned int port)
+{
+	*(volatile unsigned short*)PORT2ADDR(port) = b;
+}
+
+void outl(unsigned long b, unsigned int port)
+{
+        *(volatile unsigned long*)PORT2ADDR(port) = b;
+}
+
+void outsb(unsigned int port, const void *buffer, unsigned long count)
+{
+	const unsigned char *buf=buffer;
+	while(count--) outb(*buf++, port);
+}
+
+void outsw(unsigned int port, const void *buffer, unsigned long count)
+{
+	const unsigned short *buf=buffer;
+	while(count--) outw(*buf++, port);
+}
+
+void outsl(unsigned int port, const void *buffer, unsigned long count)
+{
+	const unsigned long *buf=buffer;
+	while(count--) outl(*buf++, port);
+}