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Diffstat (limited to 'include/asm-mn10300/io.h')
-rw-r--r-- | include/asm-mn10300/io.h | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/include/asm-mn10300/io.h b/include/asm-mn10300/io.h deleted file mode 100644 index c1a4119..0000000 --- a/include/asm-mn10300/io.h +++ /dev/null @@ -1,301 +0,0 @@ -/* MN10300 I/O port emulation and memory-mapped I/O - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_IO_H -#define _ASM_IO_H - -#include <asm/page.h> /* I/O is all done through memory accesses */ -#include <asm/cpu-regs.h> -#include <asm/cacheflush.h> - -#define mmiowb() do {} while (0) - -/*****************************************************************************/ -/* - * readX/writeX() are used to access memory mapped devices. On some - * architectures the memory mapped IO stuff needs to be accessed - * differently. On the x86 architecture, we just read/write the - * memory location directly. - */ -static inline u8 readb(const volatile void __iomem *addr) -{ - return *(const volatile u8 *) addr; -} - -static inline u16 readw(const volatile void __iomem *addr) -{ - return *(const volatile u16 *) addr; -} - -static inline u32 readl(const volatile void __iomem *addr) -{ - return *(const volatile u32 *) addr; -} - -#define __raw_readb readb -#define __raw_readw readw -#define __raw_readl readl - -#define readb_relaxed readb -#define readw_relaxed readw -#define readl_relaxed readl - -static inline void writeb(u8 b, volatile void __iomem *addr) -{ - *(volatile u8 *) addr = b; -} - -static inline void writew(u16 b, volatile void __iomem *addr) -{ - *(volatile u16 *) addr = b; -} - -static inline void writel(u32 b, volatile void __iomem *addr) -{ - *(volatile u32 *) addr = b; -} - -#define __raw_writeb writeb -#define __raw_writew writew -#define __raw_writel writel - -/*****************************************************************************/ -/* - * traditional input/output functions - */ -static inline u8 inb_local(unsigned long addr) -{ - return readb((volatile void __iomem *) addr); -} - -static inline void outb_local(u8 b, unsigned long addr) -{ - return writeb(b, (volatile void __iomem *) addr); -} - -static inline u8 inb(unsigned long addr) -{ - return readb((volatile void __iomem *) addr); -} - -static inline u16 inw(unsigned long addr) -{ - return readw((volatile void __iomem *) addr); -} - -static inline u32 inl(unsigned long addr) -{ - return readl((volatile void __iomem *) addr); -} - -static inline void outb(u8 b, unsigned long addr) -{ - return writeb(b, (volatile void __iomem *) addr); -} - -static inline void outw(u16 b, unsigned long addr) -{ - return writew(b, (volatile void __iomem *) addr); -} - -static inline void outl(u32 b, unsigned long addr) -{ - return writel(b, (volatile void __iomem *) addr); -} - -#define inb_p(addr) inb(addr) -#define inw_p(addr) inw(addr) -#define inl_p(addr) inl(addr) -#define outb_p(x, addr) outb((x), (addr)) -#define outw_p(x, addr) outw((x), (addr)) -#define outl_p(x, addr) outl((x), (addr)) - -static inline void insb(unsigned long addr, void *buffer, int count) -{ - if (count) { - u8 *buf = buffer; - do { - u8 x = inb(addr); - *buf++ = x; - } while (--count); - } -} - -static inline void insw(unsigned long addr, void *buffer, int count) -{ - if (count) { - u16 *buf = buffer; - do { - u16 x = inw(addr); - *buf++ = x; - } while (--count); - } -} - -static inline void insl(unsigned long addr, void *buffer, int count) -{ - if (count) { - u32 *buf = buffer; - do { - u32 x = inl(addr); - *buf++ = x; - } while (--count); - } -} - -static inline void outsb(unsigned long addr, const void *buffer, int count) -{ - if (count) { - const u8 *buf = buffer; - do { - outb(*buf++, addr); - } while (--count); - } -} - -static inline void outsw(unsigned long addr, const void *buffer, int count) -{ - if (count) { - const u16 *buf = buffer; - do { - outw(*buf++, addr); - } while (--count); - } -} - -extern void __outsl(unsigned long addr, const void *buffer, int count); -static inline void outsl(unsigned long addr, const void *buffer, int count) -{ - if ((unsigned long) buffer & 0x3) - return __outsl(addr, buffer, count); - - if (count) { - const u32 *buf = buffer; - do { - outl(*buf++, addr); - } while (--count); - } -} - -#define ioread8(addr) readb(addr) -#define ioread16(addr) readw(addr) -#define ioread32(addr) readl(addr) - -#define iowrite8(v, addr) writeb((v), (addr)) -#define iowrite16(v, addr) writew((v), (addr)) -#define iowrite32(v, addr) writel((v), (addr)) - -#define ioread8_rep(p, dst, count) \ - insb((unsigned long) (p), (dst), (count)) -#define ioread16_rep(p, dst, count) \ - insw((unsigned long) (p), (dst), (count)) -#define ioread32_rep(p, dst, count) \ - insl((unsigned long) (p), (dst), (count)) - -#define iowrite8_rep(p, src, count) \ - outsb((unsigned long) (p), (src), (count)) -#define iowrite16_rep(p, src, count) \ - outsw((unsigned long) (p), (src), (count)) -#define iowrite32_rep(p, src, count) \ - outsl((unsigned long) (p), (src), (count)) - - -#define IO_SPACE_LIMIT 0xffffffff - -#ifdef __KERNEL__ - -#include <linux/vmalloc.h> -#define __io_virt(x) ((void *) (x)) - -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ -struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); -static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) -{ -} - -/* - * Change virtual addresses to physical addresses and vv. - * These are pretty trivial - */ -static inline unsigned long virt_to_phys(volatile void *address) -{ - return __pa(address); -} - -static inline void *phys_to_virt(unsigned long address) -{ - return __va(address); -} - -/* - * Change "struct page" to physical address. - */ -static inline void *__ioremap(unsigned long offset, unsigned long size, - unsigned long flags) -{ - return (void *) offset; -} - -static inline void *ioremap(unsigned long offset, unsigned long size) -{ - return (void *) offset; -} - -/* - * This one maps high address device memory and turns off caching for that - * area. it's useful if some control registers are in such an area and write - * combining or read caching is not desirable: - */ -static inline void *ioremap_nocache(unsigned long offset, unsigned long size) -{ - return (void *) (offset | 0x20000000); -} - -#define ioremap_wc ioremap_nocache - -static inline void iounmap(void *addr) -{ -} - -static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) -{ - return (void __iomem *) port; -} - -static inline void ioport_unmap(void __iomem *p) -{ -} - -#define xlate_dev_kmem_ptr(p) ((void *) (p)) -#define xlate_dev_mem_ptr(p) ((void *) (p)) - -/* - * PCI bus iomem addresses must be in the region 0x80000000-0x9fffffff - */ -static inline unsigned long virt_to_bus(volatile void *address) -{ - return ((unsigned long) address) & ~0x20000000; -} - -static inline void *bus_to_virt(unsigned long address) -{ - return (void *) address; -} - -#define page_to_bus page_to_phys - -#define memset_io(a, b, c) memset(__io_virt(a), (b), (c)) -#define memcpy_fromio(a, b, c) memcpy((a), __io_virt(b), (c)) -#define memcpy_toio(a, b, c) memcpy(__io_virt(a), (b), (c)) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_IO_H */ |