1/* 2 * Copyright 2006 PathScale, Inc. All Rights Reserved. 3 * 4 * This file is free software; you can redistribute it and/or modify 5 * it under the terms of version 2 of the GNU General Public License 6 * as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write to the Free Software Foundation, 15 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. 16 */ 17 18#ifndef _LINUX_IO_H 19#define _LINUX_IO_H 20 21#include <linux/types.h> 22#include <asm/io.h> 23#include <asm/page.h> 24 25struct device; 26 27void __iowrite32_copy(void __iomem *to, const void *from, size_t count); 28void __iowrite64_copy(void __iomem *to, const void *from, size_t count); 29 30#ifdef CONFIG_MMU 31int ioremap_page_range(unsigned long addr, unsigned long end, 32 phys_addr_t phys_addr, pgprot_t prot); 33#else 34static inline int ioremap_page_range(unsigned long addr, unsigned long end, 35 phys_addr_t phys_addr, pgprot_t prot) 36{ 37 return 0; 38} 39#endif 40 41/* 42 * Managed iomap interface 43 */ 44#ifdef CONFIG_HAS_IOPORT 45void __iomem * devm_ioport_map(struct device *dev, unsigned long port, 46 unsigned int nr); 47void devm_ioport_unmap(struct device *dev, void __iomem *addr); 48#else 49static inline void __iomem *devm_ioport_map(struct device *dev, 50 unsigned long port, 51 unsigned int nr) 52{ 53 return NULL; 54} 55 56static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr) 57{ 58} 59#endif 60 61void __iomem *devm_ioremap(struct device *dev, resource_size_t offset, 62 unsigned long size); 63void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset, 64 unsigned long size); 65void devm_iounmap(struct device *dev, void __iomem *addr); 66int check_signature(const volatile void __iomem *io_addr, 67 const unsigned char *signature, int length); 68void devm_ioremap_release(struct device *dev, void *res); 69 70#endif /* _LINUX_IO_H */ 71