arch/arm/mach-ebsa110/include/mach/io.h

   1 /*
   2  *  arch/arm/mach-ebsa110/include/mach/io.h
   3  *
   4  *  Copyright (C) 1997,1998 Russell King
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Modifications:
  11  *  06-Dec-1997 RMK     Created.
  12  */
  13 #ifndef __ASM_ARM_ARCH_IO_H
  14 #define __ASM_ARM_ARCH_IO_H
  15
  16 u8 __inb8(unsigned int port);
  17 void __outb8(u8  val, unsigned int port);
  18
  19 u8 __inb16(unsigned int port);
  20 void __outb16(u8  val, unsigned int port);
  21
  22 u16 __inw(unsigned int port);
  23 void __outw(u16 val, unsigned int port);
  24
  25 u32 __inl(unsigned int port);
  26 void __outl(u32 val, unsigned int port);
  27
  28 u8  __readb(const volatile void __iomem *addr);
  29 u16 __readw(const volatile void __iomem *addr);
  30 u32 __readl(const volatile void __iomem *addr);
  31
  32 void __writeb(u8  val, void __iomem *addr);
  33 void __writew(u16 val, void __iomem *addr);
  34 void __writel(u32 val, void __iomem *addr);
  35
  36 /*
  37  * Argh, someone forgot the IOCS16 line.  We therefore have to handle
  38  * the byte stearing by selecting the correct byte IO functions here.
  39  */
  40 #ifdef ISA_SIXTEEN_BIT_PERIPHERAL
  41 #define inb(p)                  __inb16(p)
  42 #define outb(v,p)               __outb16(v,p)
  43 #else
  44 #define inb(p)                  __inb8(p)
  45 #define outb(v,p)               __outb8(v,p)
  46 #endif
  47
  48 #define inw(p)                  __inw(p)
  49 #define outw(v,p)               __outw(v,p)
  50
  51 #define inl(p)                  __inl(p)
  52 #define outl(v,p)               __outl(v,p)
  53
  54 #define readb(b)                __readb(b)
  55 #define readw(b)                __readw(b)
  56 #define readl(b)                __readl(b)
  57 #define readb_relaxed(addr)     readb(addr)
  58 #define readw_relaxed(addr)     readw(addr)
  59 #define readl_relaxed(addr)     readl(addr)
  60
  61 #define writeb(v,b)             __writeb(v,b)
  62 #define writew(v,b)             __writew(v,b)
  63 #define writel(v,b)             __writel(v,b)
  64
  65 extern void insb(unsigned int port, void *buf, int sz);
  66 extern void insw(unsigned int port, void *buf, int sz);
  67 extern void insl(unsigned int port, void *buf, int sz);
  68
  69 extern void outsb(unsigned int port, const void *buf, int sz);
  70 extern void outsw(unsigned int port, const void *buf, int sz);
  71 extern void outsl(unsigned int port, const void *buf, int sz);
  72
  73 /* can't support writesb atm */
  74 extern void writesw(void __iomem *addr, const void *data, int wordlen);
  75 extern void writesl(void __iomem *addr, const void *data, int longlen);
  76
  77 /* can't support readsb atm */
  78 extern void readsw(const void __iomem *addr, void *data, int wordlen);
  79 extern void readsl(const void __iomem *addr, void *data, int longlen);
  80
  81 #endif