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// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/m32r/platforms/oaks32r/io.c
*
* Typical I/O routines for OAKS32R board.
*
* Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
* Hitoshi Yamamoto, Mamoru Sakugawa
*/
#include <asm/m32r.h>
#include <asm/page.h>
#include <asm/io.h>
#define PORT2ADDR(port) _port2addr(port)
static inline void *_port2addr(unsigned long port)
{
return (void *)(port | NONCACHE_OFFSET);
}
static inline void *_port2addr_ne(unsigned long port)
{
return (void *)((port<<1) + NONCACHE_OFFSET + 0x02000000);
}
static inline void delay(void)
{
__asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
}
/*
* NIC I/O function
*/
#define PORT2ADDR_NE(port) _port2addr_ne(port)
static inline unsigned char _ne_inb(void *portp)
{
return *(volatile unsigned char *)(portp+1);
}
static inline unsigned short _ne_inw(void *portp)
{
unsigned short tmp;
tmp = *(unsigned short *)(portp) & 0xff;
tmp |= *(unsigned short *)(portp+2) << 8;
return tmp;
}
static inline void _ne_insb(void *portp, void *addr, unsigned long count)
{
unsigned char *buf = addr;
while (count--)
*buf++ = *(volatile unsigned char *)(portp+1);
}
static inline void _ne_outb(unsigned char b, void *portp)
{
*(volatile unsigned char *)(portp+1) = b;
}
static inline void _ne_outw(unsigned short w, void *portp)
{
*(volatile unsigned short *)portp = (w >> 8);
*(volatile unsigned short *)(portp+2) = (w & 0xff);
}
unsigned char _inb(unsigned long port)
{
if (port >= 0x300 && port < 0x320)
return _ne_inb(PORT2ADDR_NE(port));
return *(volatile unsigned char *)PORT2ADDR(port);
}
unsigned short _inw(unsigned long port)
{
if (port >= 0x300 && port < 0x320)
return _ne_inw(PORT2ADDR_NE(port));
return *(volatile unsigned short *)PORT2ADDR(port);
}
unsigned long _inl(unsigned long port)
{
return *(volatile unsigned long *)PORT2ADDR(port);
}
unsigned char _inb_p(unsigned long port)
{
unsigned char v = _inb(port);
delay();
return (v);
}
unsigned short _inw_p(unsigned long port)
{
unsigned short v = _inw(port);
delay();
return (v);
}
unsigned long _inl_p(unsigned long port)
{
unsigned long v = _inl(port);
delay();
return (v);
}
void _outb(unsigned char b, unsigned long port)
{
if (port >= 0x300 && port < 0x320)
_ne_outb(b, PORT2ADDR_NE(port));
else
*(volatile unsigned char *)PORT2ADDR(port) = b;
}
void _outw(unsigned short w, unsigned long port)
{
if (port >= 0x300 && port < 0x320)
_ne_outw(w, PORT2ADDR_NE(port));
else
*(volatile unsigned short *)PORT2ADDR(port) = w;
}
void _outl(unsigned long l, unsigned long port)
{
*(volatile unsigned long *)PORT2ADDR(port) = l;
}
void _outb_p(unsigned char b, unsigned long port)
{
_outb(b, port);
delay();
}
void _outw_p(unsigned short w, unsigned long port)
{
_outw(w, port);
delay();
}
void _outl_p(unsigned long l, unsigned long port)
{
_outl(l, port);
delay();
}
void _insb(unsigned int port, void *addr, unsigned long count)
{
if (port >= 0x300 && port < 0x320)
_ne_insb(PORT2ADDR_NE(port), addr, count);
else {
unsigned char *buf = addr;
unsigned char *portp = PORT2ADDR(port);
while (count--)
*buf++ = *(volatile unsigned char *)portp;
}
}
void _insw(unsigned int port, void *addr, unsigned long count)
{
unsigned short *buf = addr;
unsigned short *portp;
if (port >= 0x300 && port < 0x320) {
portp = PORT2ADDR_NE(port);
while (count--)
*buf++ = _ne_inw(portp);
} else {
portp = PORT2ADDR(port);
while (count--)
*buf++ = *(volatile unsigned short *)portp;
}
}
void _insl(unsigned int port, void *addr, unsigned long count)
{
unsigned long *buf = addr;
unsigned long *portp;
portp = PORT2ADDR(port);
while (count--)
*buf++ = *(volatile unsigned long *)portp;
}
void _outsb(unsigned int port, const void *addr, unsigned long count)
{
const unsigned char *buf = addr;
unsigned char *portp;
if (port >= 0x300 && port < 0x320) {
portp = PORT2ADDR_NE(port);
while (count--)
_ne_outb(*buf++, portp);
} else {
portp = PORT2ADDR(port);
while (count--)
*(volatile unsigned char *)portp = *buf++;
}
}
void _outsw(unsigned int port, const void *addr, unsigned long count)
{
const unsigned short *buf = addr;
unsigned short *portp;
if (port >= 0x300 && port < 0x320) {
portp = PORT2ADDR_NE(port);
while (count--)
_ne_outw(*buf++, portp);
} else {
portp = PORT2ADDR(port);
while (count--)
*(volatile unsigned short *)portp = *buf++;
}
}
void _outsl(unsigned int port, const void *addr, unsigned long count)
{
const unsigned long *buf = addr;
unsigned char *portp;
portp = PORT2ADDR(port);
while (count--)
*(volatile unsigned long *)portp = *buf++;
}
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