/* $Id: io.c,v 1.5 2004/02/22 23:08:43 kkojima Exp $ * * linux/arch/sh/kernel/io_se.c * * Copyright (C) 2000  Kazumoto Kojima * * I/O routine for Hitachi SolutionEngine. * */#include <linux/kernel.h>#include <linux/types.h>#include <asm/io.h>#include <asm/se/se.h>/* SH pcmcia io window base, start and end.  */int sh_pcic_io_wbase = 0xb8400000;int sh_pcic_io_start;int sh_pcic_io_stop;int sh_pcic_io_type;int sh_pcic_io_dummy;static inline void delay(void){	ctrl_inw(0xa0000000);}/* MS7750 requires special versions of in*, out* routines, since   PC-like io ports are located at upper half byte of 16-bit word which   can be accessed only with 16-bit wide.  */static inline volatile __u16 *port2adr(unsigned int port){	if (port >= 0x2000)		return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));	else if (port >= 0x1000)		return (volatile __u16 *) (PA_83902 + (port << 1));	else if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)		return (volatile __u16 *) (sh_pcic_io_wbase + (port &~ 1));	else		return (volatile __u16 *) (PA_SUPERIO + (port << 1));}static inline intshifted_port(unsigned long port){	/* For IDE registers, value is not shifted */	if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)		return 0;	else		return 1;}#define maybebadio(name,port) \  printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \	 #name, (port), (__u32) __builtin_return_address(0))unsigned char se_inb(unsigned long port){	if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)		return *(__u8 *) (sh_pcic_io_wbase + 0x40000 + port); 	else if (shifted_port(port))		return (*port2adr(port) >> 8); 	else		return (*port2adr(port))&0xff; }unsigned char se_inb_p(unsigned long port){	unsigned long v;	if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)		v = *(__u8 *) (sh_pcic_io_wbase + 0x40000 + port); 	else if (shifted_port(port))		v = (*port2adr(port) >> 8); 	else		v = (*port2adr(port))&0xff; 	delay();	return v;}unsigned short se_inw(unsigned long port){	if (port >= 0x2000 ||	    (sh_pcic_io_start <= port && port <= sh_pcic_io_stop))		return *port2adr(port);	else		maybebadio(inw, port);	return 0;}unsigned int se_inl(unsigned long port){	maybebadio(inl, port);	return 0;}void se_outb(unsigned char value, unsigned long port){	if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)		*(__u8 *)(sh_pcic_io_wbase + port) = value; 	else if (shifted_port(port))		*(port2adr(port)) = value << 8;	else		*(port2adr(port)) = value;}void se_outb_p(unsigned char value, unsigned long port){	if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)		*(__u8 *)(sh_pcic_io_wbase + port) = value; 	else if (shifted_port(port))		*(port2adr(port)) = value << 8;	else		*(port2adr(port)) = value;	delay();}void se_outw(unsigned short value, unsigned long port){	if (port >= 0x2000 ||	    (sh_pcic_io_start <= port && port <= sh_pcic_io_stop))		*port2adr(port) = value;	else		maybebadio(outw, port);}void se_outl(unsigned int value, unsigned long port){	maybebadio(outl, port);}void se_insb(unsigned long port, void *addr, unsigned long count){	volatile __u16 *p = port2adr(port);	__u8 *ap = addr;	if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop) {		volatile __u8 *bp = (__u8 *) (sh_pcic_io_wbase + 0x40000 + port); 		while (count--)			*ap++ = *bp;	} else if (shifted_port(port)) {		while (count--)			*ap++ = *p >> 8;	} else {		while (count--)			*ap++ = *p;	}}void se_insw(unsigned long port, void *addr, unsigned long count){	volatile __u16 *p = port2adr(port);	__u16 *ap = addr;	while (count--)		*ap++ = *p;}void se_insl(unsigned long port, void *addr, unsigned long count){	maybebadio(insl, port);}void se_outsb(unsigned long port, const void *addr, unsigned long count){	volatile __u16 *p = port2adr(port);	const __u8 *ap = addr;	if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop) {		volatile __u8 *bp = (__u8 *) (sh_pcic_io_wbase + port); 		while (count--)			*bp = *ap++;	} else if (shifted_port(port)) {		while (count--)			*p = *ap++ << 8;	} else {		while (count--)			*p = *ap++;	}}void se_outsw(unsigned long port, const void *addr, unsigned long count){	volatile __u16 *p = port2adr(port);	const __u16 *ap = addr;	while (count--)		*p = *ap++;}void se_outsl(unsigned long port, const void *addr, unsigned long count){	maybebadio(outsw, port);}/* Map ISA bus address to the real address. Only for PCMCIA.  *//* ISA page descriptor.  */static __u32 sh_isa_memmap[256];static intsh_isa_mmap(__u32 start, __u32 length, __u32 offset){	int idx;	if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000))		return -1;	idx = start >> 12;	sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff);#if 0	printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n",	       start, length, offset, idx, sh_isa_memmap[idx]);#endif	return 0;}unsigned longse_isa_port2addr(unsigned long offset){	int idx;	idx = (offset >> 12) & 0xff;	offset &= 0xfff;	return sh_isa_memmap[idx] + offset;}