166 lines
3.2 KiB
C
166 lines
3.2 KiB
C
/*
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* arch/sh/kernel/iomap.c
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*
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* Copyright (C) 2000 Niibe Yutaka
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* Copyright (C) 2005 - 2007 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <linux/io.h>
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unsigned int ioread8(void __iomem *addr)
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{
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return readb(addr);
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}
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EXPORT_SYMBOL(ioread8);
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unsigned int ioread16(void __iomem *addr)
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{
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return readw(addr);
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}
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EXPORT_SYMBOL(ioread16);
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unsigned int ioread16be(void __iomem *addr)
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{
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return be16_to_cpu(__raw_readw(addr));
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}
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EXPORT_SYMBOL(ioread16be);
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unsigned int ioread32(void __iomem *addr)
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{
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return readl(addr);
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}
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EXPORT_SYMBOL(ioread32);
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unsigned int ioread32be(void __iomem *addr)
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{
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return be32_to_cpu(__raw_readl(addr));
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}
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EXPORT_SYMBOL(ioread32be);
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void iowrite8(u8 val, void __iomem *addr)
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{
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writeb(val, addr);
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}
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EXPORT_SYMBOL(iowrite8);
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void iowrite16(u16 val, void __iomem *addr)
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{
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writew(val, addr);
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}
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EXPORT_SYMBOL(iowrite16);
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void iowrite16be(u16 val, void __iomem *addr)
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{
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__raw_writew(cpu_to_be16(val), addr);
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}
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EXPORT_SYMBOL(iowrite16be);
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void iowrite32(u32 val, void __iomem *addr)
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{
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writel(val, addr);
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}
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EXPORT_SYMBOL(iowrite32);
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void iowrite32be(u32 val, void __iomem *addr)
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{
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__raw_writel(cpu_to_be32(val), addr);
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}
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EXPORT_SYMBOL(iowrite32be);
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/*
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* These are the "repeat MMIO read/write" functions.
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* Note the "__raw" accesses, since we don't want to
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* convert to CPU byte order. We write in "IO byte
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* order" (we also don't have IO barriers).
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*/
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static inline void mmio_insb(void __iomem *addr, u8 *dst, int count)
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{
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while (--count >= 0) {
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u8 data = __raw_readb(addr);
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*dst = data;
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dst++;
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}
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}
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static inline void mmio_insw(void __iomem *addr, u16 *dst, int count)
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{
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while (--count >= 0) {
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u16 data = __raw_readw(addr);
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*dst = data;
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dst++;
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}
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}
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static inline void mmio_insl(void __iomem *addr, u32 *dst, int count)
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{
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while (--count >= 0) {
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u32 data = __raw_readl(addr);
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*dst = data;
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dst++;
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}
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}
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static inline void mmio_outsb(void __iomem *addr, const u8 *src, int count)
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{
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while (--count >= 0) {
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__raw_writeb(*src, addr);
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src++;
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}
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}
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static inline void mmio_outsw(void __iomem *addr, const u16 *src, int count)
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{
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while (--count >= 0) {
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__raw_writew(*src, addr);
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src++;
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}
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}
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static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
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{
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while (--count >= 0) {
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__raw_writel(*src, addr);
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src++;
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}
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}
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void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
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{
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mmio_insb(addr, dst, count);
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}
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EXPORT_SYMBOL(ioread8_rep);
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void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
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{
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mmio_insw(addr, dst, count);
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}
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EXPORT_SYMBOL(ioread16_rep);
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void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
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{
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mmio_insl(addr, dst, count);
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}
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EXPORT_SYMBOL(ioread32_rep);
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void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
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{
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mmio_outsb(addr, src, count);
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}
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EXPORT_SYMBOL(iowrite8_rep);
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void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
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{
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mmio_outsw(addr, src, count);
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}
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EXPORT_SYMBOL(iowrite16_rep);
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void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
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{
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mmio_outsl(addr, src, count);
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}
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EXPORT_SYMBOL(iowrite32_rep);
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