Viewing file:  io_adx.c (3.81 KB) -rw-r--r--
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/*
* linux/arch/sh/kernel/io_adx.c
*
* Copyright (C) 2001 A&D Co., Ltd.
*
* I/O routine and setup routines for A&D ADX Board
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
*/
#include <asm/io.h>
#include <asm/machvec.h>
#include <linux/module.h>
#define PORT2ADDR(x) (adx_isa_port2addr(x))
static inline void delay(void)
{
ctrl_inw(0xa0000000);
}
unsigned char adx_inb(unsigned long port)
{
return *(volatile unsigned char*)PORT2ADDR(port);
}
unsigned short adx_inw(unsigned long port)
{
return *(volatile unsigned short*)PORT2ADDR(port);
}
unsigned int adx_inl(unsigned long port)
{
return *(volatile unsigned long*)PORT2ADDR(port);
}
unsigned char adx_inb_p(unsigned long port)
{
unsigned long v = *(volatile unsigned char*)PORT2ADDR(port);
delay();
return v;
}
unsigned short adx_inw_p(unsigned long port)
{
unsigned long v = *(volatile unsigned short*)PORT2ADDR(port);
delay();
return v;
}
unsigned int adx_inl_p(unsigned long port)
{
unsigned long v = *(volatile unsigned long*)PORT2ADDR(port);
delay();
return v;
}
void adx_insb(unsigned long port, void *buffer, unsigned long count)
{
unsigned char *buf = buffer;
while(count--) *buf++ = inb(port);
}
void adx_insw(unsigned long port, void *buffer, unsigned long count)
{
unsigned short *buf = buffer;
while(count--) *buf++ = inw(port);
}
void adx_insl(unsigned long port, void *buffer, unsigned long count)
{
unsigned long *buf = buffer;
while(count--) *buf++ = inl(port);
}
void adx_outb(unsigned char b, unsigned long port)
{
*(volatile unsigned char*)PORT2ADDR(port) = b;
}
void adx_outw(unsigned short b, unsigned long port)
{
*(volatile unsigned short*)PORT2ADDR(port) = b;
}
void adx_outl(unsigned int b, unsigned long port)
{
*(volatile unsigned long*)PORT2ADDR(port) = b;
}
void adx_outb_p(unsigned char b, unsigned long port)
{
*(volatile unsigned char*)PORT2ADDR(port) = b;
delay();
}
void adx_outw_p(unsigned short b, unsigned long port)
{
*(volatile unsigned short*)PORT2ADDR(port) = b;
delay();
}
void adx_outl_p(unsigned int b, unsigned long port)
{
*(volatile unsigned long*)PORT2ADDR(port) = b;
delay();
}
void adx_outsb(unsigned long port, const void *buffer, unsigned long count)
{
const unsigned char *buf = buffer;
while(count--) outb(*buf++, port);
}
void adx_outsw(unsigned long port, const void *buffer, unsigned long count)
{
const unsigned short *buf = buffer;
while(count--) outw(*buf++, port);
}
void adx_outsl(unsigned long port, const void *buffer, unsigned long count)
{
const unsigned long *buf = buffer;
while(count--) outl(*buf++, port);
}
unsigned char adx_readb(unsigned long addr)
{
return *(volatile unsigned char*)addr;
}
unsigned short adx_readw(unsigned long addr)
{
return *(volatile unsigned short*)addr;
}
unsigned int adx_readl(unsigned long addr)
{
return *(volatile unsigned long*)addr;
}
void adx_writeb(unsigned char b, unsigned long addr)
{
*(volatile unsigned char*)addr = b;
}
void adx_writew(unsigned short b, unsigned long addr)
{
*(volatile unsigned short*)addr = b;
}
void adx_writel(unsigned int b, unsigned long addr)
{
*(volatile unsigned long*)addr = b;
}
void *adx_ioremap(unsigned long offset, unsigned long size)
{
return (void *)P2SEGADDR(offset);
}
EXPORT_SYMBOL (adx_ioremap);
void adx_iounmap(void *addr)
{
}
EXPORT_SYMBOL(adx_iounmap);
#include <linux/vmalloc.h>
extern void *cf_io_base;
unsigned long adx_isa_port2addr(unsigned long offset)
{
/* CompactFlash (IDE) */
if (((offset >= 0x1f0) && (offset <= 0x1f7)) || (offset == 0x3f6)) {
return (unsigned long)cf_io_base + offset;
}
/* eth0 */
if ((offset >= 0x300) && (offset <= 0x30f)) {
return 0xa5000000 + offset; /* COMM BOARD (AREA1) */
}
return offset + 0xb0000000; /* IOBUS (AREA 4)*/
}
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