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#ifndef __ASM_SH_IO_H

#define __ASM_SH_IO_H

/*

 * Convention:

 *    read{b,w,l}/write{b,w,l} are for PCI,

 *    while in{b,w,l}/out{b,w,l} are for ISA

 * These may (will) be platform specific function.

 * In addition we have 'pausing' versions: in{b,w,l}_p/out{b,w,l}_p

 * and 'string' versions: ins{b,w,l}/outs{b,w,l}

 * For read{b,w,l} and write{b,w,l} there are also __raw versions, which

 * do not have a memory barrier after them.

 *

 * In addition, we have

 *   ctrl_in{b,w,l}/ctrl_out{b,w,l} for SuperH specific I/O.

 *   which are processor specific.

 */

/*

 * We follow the Alpha convention here:

 *  __inb expands to an inline function call (which either calls via the

 *        mach_vec if generic, or a machine specific implementation)

 *  _inb  is a real function call (note ___raw fns are _ version of __raw)

 *  inb   by default expands to _inb, but the machine specific code may

 *        define it to __inb if it chooses.

 */

#include <asm/cache.h>

#include <asm/system.h>

#include <linux/config.h>

/*

 * Depending on which platform we are running on, we need different

 * I/O functions.

 */

#ifdef __KERNEL__

#if defined(CONFIG_SH_GENERIC) || defined(CONFIG_SH_CQREEK) || defined(CONFIG_SH_UNKNOWN)

/* In a generic kernel, we always go through the machine vector.  */

#include <asm/machvec.h>

# define __inb(p)       sh_mv.mv_inb((p))

# define __inw(p)       sh_mv.mv_inw((p))

# define __inl(p)       sh_mv.mv_inl((p))

# define __outb(x,p)    sh_mv.mv_outb((x),(p))

# define __outw(x,p)    sh_mv.mv_outw((x),(p))

# define __outl(x,p)    sh_mv.mv_outl((x),(p))

# define __inb_p(p)     sh_mv.mv_inb_p((p))

# define __inw_p(p)     sh_mv.mv_inw_p((p))

# define __inl_p(p)     sh_mv.mv_inl_p((p))

# define __outb_p(x,p)  sh_mv.mv_outb_p((x),(p))

# define __outw_p(x,p)  sh_mv.mv_outw_p((x),(p))

# define __outl_p(x,p)  sh_mv.mv_outl_p((x),(p))

#define __insb(p,b,c)   sh_mv.mv_insb((p), (b), (c))

#define __insw(p,b,c)   sh_mv.mv_insw((p), (b), (c))

#define __insl(p,b,c)   sh_mv.mv_insl((p), (b), (c))

#define __outsb(p,b,c)  sh_mv.mv_outsb((p), (b), (c))

#define __outsw(p,b,c)  sh_mv.mv_outsw((p), (b), (c))

#define __outsl(p,b,c)  sh_mv.mv_outsl((p), (b), (c))

# define __readb(a)     sh_mv.mv_readb((a))

# define __readw(a)     sh_mv.mv_readw((a))

# define __readl(a)     sh_mv.mv_readl((a))

# define __writeb(v,a)  sh_mv.mv_writeb((v),(a))

# define __writew(v,a)  sh_mv.mv_writew((v),(a))

# define __writel(v,a)  sh_mv.mv_writel((v),(a))

# define __ioremap(a,s) sh_mv.mv_ioremap((a), (s))

# define __iounmap(a)   sh_mv.mv_iounmap((a))

# define __isa_port2addr(a)     sh_mv.mv_isa_port2addr(a)

# define inb            __inb

# define inw            __inw

# define inl            __inl

# define outb           __outb

# define outw           __outw

# define outl           __outl

# define inb_p          __inb_p

# define inw_p          __inw_p

# define inl_p          __inl_p

# define outb_p         __outb_p

# define outw_p         __outw_p

# define outl_p         __outl_p

# define insb           __insb

# define insw           __insw

# define insl           __insl

# define outsb          __outsb

# define outsw          __outsw

# define outsl          __outsl

# define __raw_readb    __readb

# define __raw_readw    __readw

# define __raw_readl    __readl

# define __raw_writeb   __writeb

# define __raw_writew   __writew

# define __raw_writel   __writel

#else

/* Control operations through platform specific headers */

# define __WANT_IO_DEF

# if defined(CONFIG_SH_HP600)

#  include <asm/io_hd64461.h>

# elif defined(CONFIG_SH_SOLUTION_ENGINE)

#  include <asm/io_se.h>

# elif defined(CONFIG_SH_SH2000)

#  include <asm/io_sh2000.h>

# elif defined(CONFIG_SH_DMIDA) || \

       defined(CONFIG_SH_STB1_HARP) || \

       defined(CONFIG_SH_STB1_OVERDRIVE)

#  include <asm/io_hd64465.h>

# elif defined(CONFIG_SH_EC3104)

#  include <asm/io_ec3104.h>

# elif defined(CONFIG_SH_DREAMCAST)

#  include <asm/io_dc.h>

# elif defined(CONFIG_SH_CAT68701)

#  include <asm/io_cat68701.h>

# elif defined(CONFIG_SH_BIGSUR)

#  include <asm/io_bigsur.h>

# elif defined(CONFIG_SH_HS7729PCI)

#  include <asm/io_hs7729pci.h>

# elif defined(CONFIG_SH_7751_SOLUTION_ENGINE)

#  include <asm/io_7751se.h>

# elif defined(CONFIG_SH_MOBILE_SOLUTION_ENGINE)

#  include <asm/io_shmse.h>

# elif defined(CONFIG_SH_ADX)

#  include <asm/io_adx.h>

# elif defined(CONFIG_SH_SECUREEDGE5410)

#  include <asm/io_snapgear.h>

# elif defined(CONFIG_SH_SH4202_MICRODEV)

#  include <asm/io_microdev.h>

# elif defined(CONFIG_SH_UNKNOWN)

#  include <asm/io_unknown.h>

# else

#  error "What system is this?"

#endif

#undef __WANT_IO_DEF

#endif /* GENERIC */

#endif /* __KERNEL__ */

/* These are always function calls, in both kernel and user space */

extern unsigned char    _inb (unsigned long port);

extern unsigned short   _inw (unsigned long port);

extern unsigned int     _inl (unsigned long port);

extern void             _outb (unsigned char b, unsigned long port);

extern void             _outw (unsigned short w, unsigned long port);

extern void             _outl (unsigned int l, unsigned long port);

extern unsigned char    _inb_p (unsigned long port);

extern unsigned short   _inw_p (unsigned long port);

extern unsigned int     _inl_p (unsigned long port);

extern void             _outb_p (unsigned char b, unsigned long port);

extern void             _outw_p (unsigned short w, unsigned long port);

extern void             _outl_p (unsigned int l, unsigned long port);

extern void             _insb (unsigned long port, void *dst, unsigned long count);

extern void             _insw (unsigned long port, void *dst, unsigned long count);

extern void             _insl (unsigned long port, void *dst, unsigned long count);

extern void             _outsb (unsigned long port, const void *src, unsigned long count);

extern void             _outsw (unsigned long port, const void *src, unsigned long count);

extern void             _outsl (unsigned long port, const void *src, unsigned long count);

extern unsigned char    _readb(unsigned long addr);

extern unsigned short   _readw(unsigned long addr);

extern unsigned int     _readl(unsigned long addr);

extern void             _writeb(unsigned char b, unsigned long addr);

extern void             _writew(unsigned short b, unsigned long addr);

extern void             _writel(unsigned int b, unsigned long addr);

#ifdef __KERNEL__

extern unsigned char    ___raw_readb(unsigned long addr);

extern unsigned short   ___raw_readw(unsigned long addr);

extern unsigned int     ___raw_readl(unsigned long addr);

extern void             ___raw_writeb(unsigned char b, unsigned long addr);

extern void             ___raw_writew(unsigned short b, unsigned long addr);

extern void             ___raw_writel(unsigned int b, unsigned long addr);

#endif

#ifdef __KERNEL__

/*

 * The platform header files may define some of these macros to use

 * the inlined versions where appropriate.  These macros may also be

 * redefined by userlevel programs.

 */

#ifndef inb

# define inb(p)         _inb(p)

#endif

#ifndef inw

# define inw(p)         _inw(p)

#endif

#ifndef inl

# define inl(p)         _inl(p)

#endif

#ifndef outb

# define outb(b,p)      _outb((b),(p))

#endif

#ifndef outw

# define outw(w,p)      _outw((w),(p))

#endif

#ifndef outl

# define outl(l,p)      _outl((l),(p))

#endif

#ifndef inb_p

# define inb_p          _inb_p

#endif

#ifndef inw_p

# define inw_p          _inw_p

#endif

#ifndef inl_p

# define inl_p          _inl_p

#endif

#ifndef outb_p

# define outb_p         _outb_p

#endif

#ifndef outw_p

# define outw_p         _outw_p

#endif

#ifndef outl_p

# define outl_p         _outl_p

#endif

#ifndef insb

# define insb(p,d,c)    _insb((p),(d),(c))

#endif

#ifndef insw

# define insw(p,d,c)    _insw((p),(d),(c))

#endif

#ifndef insl

# define insl(p,d,c)    _insl((p),(d),(c))

#endif

#ifndef outsb

# define outsb(p,s,c)   _outsb((p),(s),(c))

#endif

#ifndef outsw

# define outsw(p,s,c)   _outsw((p),(s),(c))

#endif

#ifndef outsl

# define outsl(p,s,c)   _outsl((p),(s),(c))

#endif

#ifdef __raw_readb

# define readb(a)       ({ unsigned long r_ = __raw_readb(a); mb(); r_; })

#endif

#ifdef __raw_readw

# define readw(a)       ({ unsigned long r_ = __raw_readw(a); mb(); r_; })

#endif

#ifdef __raw_readl

# define readl(a)       ({ unsigned long r_ = __raw_readl(a); mb(); r_; })

#endif

#ifdef __raw_writeb

# define writeb(v,a)    ({ __raw_writeb((v),(a)); mb(); })

#endif

#ifdef __raw_writew

# define writew(v,a)    ({ __raw_writew((v),(a)); mb(); })

#endif

#ifdef __raw_writel

# define writel(v,a)    ({ __raw_writel((v),(a)); mb(); })

#endif

#ifndef __raw_readb

# define __raw_readb(a) ___raw_readb((unsigned long)(a))

#endif

#ifndef __raw_readw

# define __raw_readw(a) ___raw_readw((unsigned long)(a))

#endif

#ifndef __raw_readl

# define __raw_readl(a) ___raw_readl((unsigned long)(a))

#endif

#ifndef __raw_writeb

# define __raw_writeb(v,a)  ___raw_writeb((v),(unsigned long)(a))

#endif

#ifndef __raw_writew

# define __raw_writew(v,a)  ___raw_writew((v),(unsigned long)(a))

#endif

#ifndef __raw_writel

# define __raw_writel(v,a)  ___raw_writel((v),(unsigned long)(a))

#endif

#ifndef readb

# define readb(a)       _readb((unsigned long)(a))

#endif

#ifndef readw

# define readw(a)       _readw((unsigned long)(a))

#endif

#ifndef readl

# define readl(a)       _readl((unsigned long)(a))

#endif

#ifndef writeb

# define writeb(v,a)    _writeb((v),(unsigned long)(a))

#endif

#ifndef writew

# define writew(v,a)    _writew((v),(unsigned long)(a))

#endif

#ifndef writel

# define writel(v,a)    _writel((v),(unsigned long)(a))

#endif

#else 

/* Userspace declarations.  */

extern unsigned char    inb(unsigned long port);

extern unsigned short   inw(unsigned long port);

extern unsigned int     inl(unsigned long port);

extern void             outb(unsigned char b, unsigned long port);

extern void             outw(unsigned short w, unsigned long port);

extern void             outl(unsigned int l, unsigned long port);

extern void             insb(unsigned long port, void *dst, unsigned long count);

extern void             insw(unsigned long port, void *dst, unsigned long count);

extern void             insl(unsigned long port, void *dst, unsigned long count);

extern void             outsb(unsigned long port, const void *src, unsigned long count);

extern void             outsw(unsigned long port, const void *src, unsigned long count);

extern void             outsl(unsigned long port, const void *src, unsigned long count);

extern unsigned char    readb(unsigned long addr);

extern unsigned short   readw(unsigned long addr);

extern unsigned long    readl(unsigned long addr);

extern void             writeb(unsigned char b, unsigned long addr);

extern void             writew(unsigned short b, unsigned long addr);

extern void             writel(unsigned int b, unsigned long addr);

#endif /* __KERNEL__ */

#ifdef __KERNEL__

/*

 * If the platform has PC-like I/O, this function converts the offset into

 * an address.

 */

static __inline__ unsigned long isa_port2addr(unsigned long offset)

{

        return __isa_port2addr(offset);

}

#define isa_readb(a) readb(isa_port2addr(a))

#define isa_readw(a) readw(isa_port2addr(a))

#define isa_readl(a) readl(isa_port2addr(a))

#define isa_writeb(b,a) writeb(b,isa_port2addr(a))

#define isa_writew(w,a) writew(w,isa_port2addr(a))

#define isa_writel(l,a) writel(l,isa_port2addr(a))

#define isa_memset_io(a,b,c) \

  memset((void *)(isa_port2addr((unsigned long)a)),(b),(c))

#define isa_memcpy_fromio(a,b,c) \

  memcpy((a),(void *)(isa_port2addr((unsigned long)(b))),(c))

#define isa_memcpy_toio(a,b,c) \

  memcpy((void *)(isa_port2addr((unsigned long)(a))),(b),(c))

/* We really want to try and get these to memcpy etc */

extern void memcpy_fromio(void *, unsigned long, unsigned long);

extern void memcpy_toio(unsigned long, const void *, unsigned long);

extern void memset_io(unsigned long, int, unsigned long);

/* SuperH on-chip I/O functions */

static __inline__ unsigned char ctrl_inb(unsigned long addr)

{

        return *(volatile unsigned char*)addr;

}

static __inline__ unsigned short ctrl_inw(unsigned long addr)

{

        return *(volatile unsigned short*)addr;

}

static __inline__ unsigned int ctrl_inl(unsigned long addr)

{

        return *(volatile unsigned long*)addr;

}

static __inline__ void ctrl_outb(unsigned char b, unsigned long addr)

{

        *(volatile unsigned char*)addr = b;

}

static __inline__ void ctrl_outw(unsigned short b, unsigned long addr)

{

        *(volatile unsigned short*)addr = b;

}

static __inline__ void ctrl_outl(unsigned int b, unsigned long addr)

{

        *(volatile unsigned long*)addr = b;

}

#define IO_SPACE_LIMIT 0xffffffff

#include <asm/addrspace.h>

/*

 * Change virtual addresses to physical addresses and vv.

 * These are trivial on the 1:1 Linux/SuperH mapping

 */

static __inline__ unsigned long virt_to_phys(volatile void * address)

{

        return PHYSADDR(address);

}

static __inline__ void * phys_to_virt(unsigned long address)

{

        return (void *)P1SEGADDR(address);

}

#define virt_to_bus virt_to_phys

#define bus_to_virt phys_to_virt

#define page_to_bus page_to_phys

/*

 * readX/writeX() are used to access memory mapped devices. On some

 * architectures the memory mapped IO stuff needs to be accessed

 * differently. On the x86 architecture, we just read/write the

 * memory location directly.

 *

 * On SH, we have the whole physical address space mapped at all times

 * (as MIPS does), so "ioremap()" and "iounmap()" do not need to do

 * anything.  (This isn't true for all machines but we still handle

 * these cases with wired TLB entries anyway ...)

 *

 * We cheat a bit and always return uncachable areas until we've fixed

 * the drivers to handle caching properly.

 */

static __inline__ void * ioremap(unsigned long offset, unsigned long size)

{

        return __ioremap(offset, size);

}

static __inline__ void iounmap(void *addr)

{

        return __iounmap(addr);

}

#define ioremap_nocache(off,size) ioremap(off,size)

static __inline__ int check_signature(unsigned long io_addr,

                        const unsigned char *signature, int length)

{

        int retval = 0;

        do {

                if (readb(io_addr) != *signature)

                        goto out;

                io_addr++;

                signature++;

                length--;

        } while (length);

        retval = 1;

out:

        return retval;

}

/*

 * The caches on some architectures aren't dma-coherent and have need to

 * handle this in software.  There are three types of operations that

 * can be applied to dma buffers.

 *

 *  - dma_cache_wback_inv(start, size) makes caches and RAM coherent by

 *    writing the content of the caches back to memory, if necessary.

 *    The function also invalidates the affected part of the caches as

 *    necessary before DMA transfers from outside to memory.

 *  - dma_cache_inv(start, size) invalidates the affected parts of the

 *    caches.  Dirty lines of the caches may be written back or simply

 *    be discarded.  This operation is necessary before dma operations

 *    to the memory.

 *  - dma_cache_wback(start, size) writes back any dirty lines but does

 *    not invalidate the cache.  This can be used before DMA reads from

 *    memory,

 */

#define dma_cache_wback_inv(_start,_size) \

    __flush_purge_region(_start,_size)

#define dma_cache_inv(_start,_size) \

    __flush_invalidate_region(_start,_size)

#define dma_cache_wback(_start,_size) \

    __flush_wback_region(_start,_size)

#endif /* __KERNEL__ */

#endif /* __ASM_SH_IO_H */