1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm/mach-ebsa110/include/mach/io.h 4 * 5 * Copyright (C) 1997,1998 Russell King 6 * 7 * Modifications: 8 * 06-Dec-1997 RMK Created. 9 */ 10 #ifndef __ASM_ARM_ARCH_IO_H 11 #define __ASM_ARM_ARCH_IO_H 12 13 u8 __inb8(unsigned int port); 14 void __outb8(u8 val, unsigned int port); 15 16 u8 __inb16(unsigned int port); 17 void __outb16(u8 val, unsigned int port); 18 19 u16 __inw(unsigned int port); 20 void __outw(u16 val, unsigned int port); 21 22 u32 __inl(unsigned int port); 23 void __outl(u32 val, unsigned int port); 24 25 u8 __readb(const volatile void __iomem *addr); 26 u16 __readw(const volatile void __iomem *addr); 27 u32 __readl(const volatile void __iomem *addr); 28 29 void __writeb(u8 val, volatile void __iomem *addr); 30 void __writew(u16 val, volatile void __iomem *addr); 31 void __writel(u32 val, volatile void __iomem *addr); 32 33 /* 34 * Argh, someone forgot the IOCS16 line. We therefore have to handle 35 * the byte stearing by selecting the correct byte IO functions here. 36 */ 37 #ifdef ISA_SIXTEEN_BIT_PERIPHERAL 38 #define inb(p) __inb16(p) 39 #define outb(v,p) __outb16(v,p) 40 #else 41 #define inb(p) __inb8(p) 42 #define outb(v,p) __outb8(v,p) 43 #endif 44 45 #define inw(p) __inw(p) 46 #define outw(v,p) __outw(v,p) 47 48 #define inl(p) __inl(p) 49 #define outl(v,p) __outl(v,p) 50 51 #define readb(b) __readb(b) 52 #define readw(b) __readw(b) 53 #define readl(b) __readl(b) 54 #define readb_relaxed(addr) readb(addr) 55 #define readw_relaxed(addr) readw(addr) 56 #define readl_relaxed(addr) readl(addr) 57 58 #define writeb(v,b) __writeb(v,b) 59 #define writew(v,b) __writew(v,b) 60 #define writel(v,b) __writel(v,b) 61 62 #define insb insb 63 extern void insb(unsigned int port, void *buf, int sz); 64 #define insw insw 65 extern void insw(unsigned int port, void *buf, int sz); 66 #define insl insl 67 extern void insl(unsigned int port, void *buf, int sz); 68 69 #define outsb outsb 70 extern void outsb(unsigned int port, const void *buf, int sz); 71 #define outsw outsw 72 extern void outsw(unsigned int port, const void *buf, int sz); 73 #define outsl outsl 74 extern void outsl(unsigned int port, const void *buf, int sz); 75 76 /* can't support writesb atm */ 77 #define writesw writesw 78 extern void writesw(volatile void __iomem *addr, const void *data, int wordlen); 79 #define writesl writesl 80 extern void writesl(volatile void __iomem *addr, const void *data, int longlen); 81 82 /* can't support readsb atm */ 83 #define readsw readsw 84 extern void readsw(const volatile void __iomem *addr, void *data, int wordlen); 85 86 #define readsl readsl 87 extern void readsl(const volatile void __iomem *addr, void *data, int longlen); 88 89 #endif 90