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/* $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);
}
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