diff options
| -rw-r--r-- | arch/arm/include/asm/io.h | 154 |
1 files changed, 2 insertions, 152 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 12bc7fbe06..bcbaf0d83c 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -1,44 +1,25 @@ /* - * linux/include/asm-arm/io.h + * I/O device access primitives. Based on early versions from the Linux kernel. * * Copyright (C) 1996-2000 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * Modifications: - * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both - * constant addresses and variable addresses. - * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture - * specific IO header files. - * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. - * 04-Apr-1999 PJB Added check_signature. - * 12-Dec-1999 RMK More cleanups - * 18-Jun-2000 RMK Removed virt_to_* and friends definitions */ #ifndef __ASM_ARM_IO_H #define __ASM_ARM_IO_H -#ifdef __KERNEL__ - #include <linux/types.h> #include <asm/byteorder.h> #include <asm/memory.h> #include <asm/barriers.h> -#if 0 /* XXX###XXX */ -#include <asm/arch/hardware.h> -#endif /* XXX###XXX */ static inline void sync(void) { } -/* - * Generic virtual read/write. Note that we don't support half-word - * read/writes. We define __arch_*[bl] here, and leave __arch_*w - * to the architecture specific code. - */ +/* Generic virtual read/write. */ #define __arch_getb(a) (*(volatile unsigned char *)(a)) #define __arch_getw(a) (*(volatile unsigned short *)(a)) #define __arch_getl(a) (*(volatile unsigned int *)(a)) @@ -206,13 +187,6 @@ static inline void __raw_readsl(unsigned long addr, void *data, int longlen) #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) /* - * Now, pick up the machine-defined IO definitions - */ -#if 0 /* XXX###XXX */ -#include <asm/arch/io.h> -#endif /* XXX###XXX */ - -/* * IO port access primitives * ------------------------- * @@ -276,140 +250,16 @@ static inline void __raw_readsl(unsigned long addr, void *data, int longlen) #define readsb(a, d, s) __raw_readsb((unsigned long)a, d, s) /* - * DMA-consistent mapping functions. These allocate/free a region of - * uncached, unwrite-buffered mapped memory space for use with DMA - * devices. This is the "generic" version. The PCI specific version - * is in pci.h - */ -extern void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle); -extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle); -extern void consistent_sync(void *vaddr, size_t size, int rw); - -/* * String version of IO memory access ops: */ extern void _memcpy_fromio(void *, unsigned long, size_t); extern void _memcpy_toio(unsigned long, const void *, size_t); extern void _memset_io(unsigned long, int, size_t); -extern void __readwrite_bug(const char *fn); - -/* - * If this architecture has PCI memory IO, then define the read/write - * macros. These should only be used with the cookie passed from - * ioremap. - */ -#ifdef __mem_pci - -#define readb(c) ({ unsigned int __v = __raw_readb(__mem_pci(c)); __v; }) -#define readw(c) ({ unsigned int __v = le16_to_cpu(__raw_readw(__mem_pci(c))); __v; }) -#define readl(c) ({ unsigned int __v = le32_to_cpu(__raw_readl(__mem_pci(c))); __v; }) - -#define writeb(v,c) __raw_writeb(v,__mem_pci(c)) -#define writew(v,c) __raw_writew(cpu_to_le16(v),__mem_pci(c)) -#define writel(v,c) __raw_writel(cpu_to_le32(v),__mem_pci(c)) - -#define memset_io(c,v,l) _memset_io(__mem_pci(c),(v),(l)) -#define memcpy_fromio(a,c,l) _memcpy_fromio((a),__mem_pci(c),(l)) -#define memcpy_toio(c,a,l) _memcpy_toio(__mem_pci(c),(a),(l)) - -#define eth_io_copy_and_sum(s,c,l,b) \ - eth_copy_and_sum((s),__mem_pci(c),(l),(b)) - -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; -} - -#else #define memset_io(a, b, c) memset((void *)(a), (b), (c)) #define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) -#if !defined(readb) - -#define readb(addr) (__readwrite_bug("readb"),0) -#define readw(addr) (__readwrite_bug("readw"),0) -#define readl(addr) (__readwrite_bug("readl"),0) -#define writeb(v,addr) __readwrite_bug("writeb") -#define writew(v,addr) __readwrite_bug("writew") -#define writel(v,addr) __readwrite_bug("writel") - -#define eth_io_copy_and_sum(a,b,c,d) __readwrite_bug("eth_io_copy_and_sum") - -#define check_signature(io,sig,len) (0) - -#endif -#endif /* __mem_pci */ - -/* - * If this architecture has ISA IO, then define the isa_read/isa_write - * macros. - */ -#ifdef __mem_isa - -#define isa_readb(addr) __raw_readb(__mem_isa(addr)) -#define isa_readw(addr) __raw_readw(__mem_isa(addr)) -#define isa_readl(addr) __raw_readl(__mem_isa(addr)) -#define isa_writeb(val,addr) __raw_writeb(val,__mem_isa(addr)) -#define isa_writew(val,addr) __raw_writew(val,__mem_isa(addr)) -#define isa_writel(val,addr) __raw_writel(val,__mem_isa(addr)) -#define isa_memset_io(a,b,c) _memset_io(__mem_isa(a),(b),(c)) -#define isa_memcpy_fromio(a,b,c) _memcpy_fromio((a),__mem_isa(b),(c)) -#define isa_memcpy_toio(a,b,c) _memcpy_toio(__mem_isa((a)),(b),(c)) - -#define isa_eth_io_copy_and_sum(a,b,c,d) \ - eth_copy_and_sum((a),__mem_isa(b),(c),(d)) - -static inline int -isa_check_signature(unsigned long io_addr, const unsigned char *signature, - int length) -{ - int retval = 0; - do { - if (isa_readb(io_addr) != *signature) - goto out; - io_addr++; - signature++; - length--; - } while (length); - retval = 1; -out: - return retval; -} - -#else /* __mem_isa */ - -#define isa_readb(addr) (__readwrite_bug("isa_readb"),0) -#define isa_readw(addr) (__readwrite_bug("isa_readw"),0) -#define isa_readl(addr) (__readwrite_bug("isa_readl"),0) -#define isa_writeb(val,addr) __readwrite_bug("isa_writeb") -#define isa_writew(val,addr) __readwrite_bug("isa_writew") -#define isa_writel(val,addr) __readwrite_bug("isa_writel") -#define isa_memset_io(a,b,c) __readwrite_bug("isa_memset_io") -#define isa_memcpy_fromio(a,b,c) __readwrite_bug("isa_memcpy_fromio") -#define isa_memcpy_toio(a,b,c) __readwrite_bug("isa_memcpy_toio") - -#define isa_eth_io_copy_and_sum(a,b,c,d) \ - __readwrite_bug("isa_eth_io_copy_and_sum") - -#define isa_check_signature(io,sig,len) (0) - -#endif /* __mem_isa */ -#endif /* __KERNEL__ */ - #include <asm-generic/io.h> #include <iotrace.h> |