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, volatile void __iomem *addr); 33 void __writew(u16 val, volatile void __iomem *addr); 34 void __writel(u32 val, volatile 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 #define insb insb 66 extern void insb(unsigned int port, void *buf, int sz); 67 #define insw insw 68 extern void insw(unsigned int port, void *buf, int sz); 69 #define insl insl 70 extern void insl(unsigned int port, void *buf, int sz); 71 72 #define outsb outsb 73 extern void outsb(unsigned int port, const void *buf, int sz); 74 #define outsw outsw 75 extern void outsw(unsigned int port, const void *buf, int sz); 76 #define outsl outsl 77 extern void outsl(unsigned int port, const void *buf, int sz); 78 79 /* can't support writesb atm */ 80 #define writesw writesw 81 extern void writesw(volatile void __iomem *addr, const void *data, int wordlen); 82 #define writesl writesl 83 extern void writesl(volatile void __iomem *addr, const void *data, int longlen); 84 85 /* can't support readsb atm */ 86 #define readsw readsw 87 extern void readsw(const volatile void __iomem *addr, void *data, int wordlen); 88 89 #define readsl readsl 90 extern void readsl(const volatile void __iomem *addr, void *data, int longlen); 91 92 #endif 93
