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/*
* arch/sh/boards/se/7343/io.c
*
* I/O routine for SH-Mobile3AS 7343 SolutionEngine.
*
*/
#include <linux/kernel.h>
#include <asm/io.h>
#include <asm/mach/se7343.h>
#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a)
struct iop {
unsigned long start, end;
unsigned long base;
struct iop *(*check) (struct iop * p, unsigned long port);
unsigned char (*inb) (struct iop * p, unsigned long port);
unsigned short (*inw) (struct iop * p, unsigned long port);
void (*outb) (struct iop * p, unsigned char value, unsigned long port);
void (*outw) (struct iop * p, unsigned short value, unsigned long port);
};
struct iop *
simple_check(struct iop *p, unsigned long port)
{
static int count;
if (count < 100)
count++;
port &= 0xFFFF;
if ((p->start <= port) && (port <= p->end))
return p;
else
badio(check, port);
}
struct iop *
ide_check(struct iop *p, unsigned long port)
{
if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7))
return p;
return NULL;
}
unsigned char
simple_inb(struct iop *p, unsigned long port)
{
return *(unsigned char *) (p->base + port);
}
unsigned short
simple_inw(struct iop *p, unsigned long port)
{
return *(unsigned short *) (p->base + port);
}
void
simple_outb(struct iop *p, unsigned char value, unsigned long port)
{
*(unsigned char *) (p->base + port) = value;
}
void
simple_outw(struct iop *p, unsigned short value, unsigned long port)
{
*(unsigned short *) (p->base + port) = value;
}
unsigned char
pcc_inb(struct iop *p, unsigned long port)
{
unsigned long addr = p->base + port + 0x40000;
unsigned long v;
if (port & 1)
addr += 0x00400000;
v = *(volatile unsigned char *) addr;
return v;
}
void
pcc_outb(struct iop *p, unsigned char value, unsigned long port)
{
unsigned long addr = p->base + port + 0x40000;
if (port & 1)
addr += 0x00400000;
*(volatile unsigned char *) addr = value;
}
unsigned char
bad_inb(struct iop *p, unsigned long port)
{
badio(inb, port);
}
void
bad_outb(struct iop *p, unsigned char value, unsigned long port)
{
badio(inw, port);
}
#ifdef CONFIG_SMC91X
/* MSTLANEX01 LAN at 0xb400:0000 */
static struct iop laniop = {
.start = 0x00,
.end = 0x0F,
.base = 0x04000000,
.check = simple_check,
.inb = simple_inb,
.inw = simple_inw,
.outb = simple_outb,
.outw = simple_outw,
};
#endif
#ifdef CONFIG_NE2000
/* NE2000 pc card NIC */
static struct iop neiop = {
.start = 0x280,
.end = 0x29f,
.base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */
.check = simple_check,
.inb = pcc_inb,
.inw = simple_inw,
.outb = pcc_outb,
.outw = simple_outw,
};
#endif
#ifdef CONFIG_IDE
/* CF in CF slot */
static struct iop cfiop = {
.base = 0xb0600000,
.check = ide_check,
.inb = pcc_inb,
.inw = simple_inw,
.outb = pcc_outb,
.outw = simple_outw,
};
#endif
static __inline__ struct iop *
port2iop(unsigned long port)
{
if (0) ;
#if defined(CONFIG_SMC91X)
else if (laniop.check(&laniop, port))
return &laniop;
#endif
#if defined(CONFIG_NE2000)
else if (neiop.check(&neiop, port))
return &neiop;
#endif
#if defined(CONFIG_IDE)
else if (cfiop.check(&cfiop, port))
return &cfiop;
#endif
else
return NULL;
}
static inline void
delay(void)
{
ctrl_inw(0xac000000);
ctrl_inw(0xac000000);
}
unsigned char
sh7343se_inb(unsigned long port)
{
struct iop *p = port2iop(port);
return (p->inb) (p, port);
}
unsigned char
sh7343se_inb_p(unsigned long port)
{
unsigned char v = sh7343se_inb(port);
delay();
return v;
}
unsigned short
sh7343se_inw(unsigned long port)
{
struct iop *p = port2iop(port);
return (p->inw) (p, port);
}
unsigned int
sh7343se_inl(unsigned long port)
{
badio(inl, port);
}
void
sh7343se_outb(unsigned char value, unsigned long port)
{
struct iop *p = port2iop(port);
(p->outb) (p, value, port);
}
void
sh7343se_outb_p(unsigned char value, unsigned long port)
{
sh7343se_outb(value, port);
delay();
}
void
sh7343se_outw(unsigned short value, unsigned long port)
{
struct iop *p = port2iop(port);
(p->outw) (p, value, port);
}
void
sh7343se_outl(unsigned int value, unsigned long port)
{
badio(outl, port);
}
void
sh7343se_insb(unsigned long port, void *addr, unsigned long count)
{
unsigned char *a = addr;
struct iop *p = port2iop(port);
while (count--)
*a++ = (p->inb) (p, port);
}
void
sh7343se_insw(unsigned long port, void *addr, unsigned long count)
{
unsigned short *a = addr;
struct iop *p = port2iop(port);
while (count--)
*a++ = (p->inw) (p, port);
}
void
sh7343se_insl(unsigned long port, void *addr, unsigned long count)
{
badio(insl, port);
}
void
sh7343se_outsb(unsigned long port, const void *addr, unsigned long count)
{
unsigned char *a = (unsigned char *) addr;
struct iop *p = port2iop(port);
while (count--)
(p->outb) (p, *a++, port);
}
void
sh7343se_outsw(unsigned long port, const void *addr, unsigned long count)
{
unsigned short *a = (unsigned short *) addr;
struct iop *p = port2iop(port);
while (count--)
(p->outw) (p, *a++, port);
}
void
sh7343se_outsl(unsigned long port, const void *addr, unsigned long count)
{
badio(outsw, port);
}
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