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

   1 /*
   2  *  linux/include/asm-arm/arch-ebsa110/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 #include <asm/hardware.h>
  17
  18 #define IO_SPACE_LIMIT 0xffff
  19
  20 u8 __inb8(unsigned int port);
  21 void __outb8(u8  val, unsigned int port);
  22
  23 u8 __inb16(unsigned int port);
  24 void __outb16(u8  val, unsigned int port);
  25
  26 u16 __inw(unsigned int port);
  27 void __outw(u16 val, unsigned int port);
  28
  29 u32 __inl(unsigned int port);
  30 void __outl(u32 val, unsigned int port);
  31
  32 u8  __readb(void __iomem *addr);
  33 u16 __readw(void __iomem *addr);
  34 u32 __readl(void __iomem *addr);
  35
  36 void __writeb(u8  val, void __iomem *addr);
  37 void __writew(u16 val, void __iomem *addr);
  38 void __writel(u32 val, void __iomem *addr);
  39
  40 /*
  41  * Argh, someone forgot the IOCS16 line.  We therefore have to handle
  42  * the byte stearing by selecting the correct byte IO functions here.
  43  */
  44 #ifdef ISA_SIXTEEN_BIT_PERIPHERAL
  45 #define inb(p)                  __inb16(p)
  46 #define outb(v,p)               __outb16(v,p)
  47 #else
  48 #define inb(p)                  __inb8(p)
  49 #define outb(v,p)               __outb8(v,p)
  50 #endif
  51
  52 #define inw(p)                  __inw(p)
  53 #define outw(v,p)               __outw(v,p)
  54
  55 #define inl(p)                  __inl(p)
  56 #define outl(v,p)               __outl(v,p)
  57
  58 #define readb(b)                __readb(b)
  59 #define readw(b)                __readw(b)
  60 #define readl(b)                __readl(b)
  61 #define readb_relaxed(addr)     readb(addr)
  62 #define readw_relaxed(addr)     readw(addr)
  63 #define readl_relaxed(addr)     readl(addr)
  64
  65 #define writeb(v,b)             __writeb(v,b)
  66 #define writew(v,b)             __writew(v,b)
  67 #define writel(v,b)             __writel(v,b)
  68
  69 #define __arch_ioremap(cookie,sz,c,a)   ((void __iomem *)(cookie))
  70 #define __arch_iounmap(cookie)          do { } while (0)
  71
  72 extern void insb(unsigned int port, void *buf, int sz);
  73 extern void insw(unsigned int port, void *buf, int sz);
  74 extern void insl(unsigned int port, void *buf, int sz);
  75
  76 extern void outsb(unsigned int port, const void *buf, int sz);
  77 extern void outsw(unsigned int port, const void *buf, int sz);
  78 extern void outsl(unsigned int port, const void *buf, int sz);
  79
  80 #endif