diff options
Diffstat (limited to 'include/linux/io.h')
-rw-r--r-- | include/linux/io.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/linux/io.h b/include/linux/io.h new file mode 100644 index 00000000..7fd2d213 --- /dev/null +++ b/include/linux/io.h @@ -0,0 +1,70 @@ +/* + * Copyright 2006 PathScale, Inc. All Rights Reserved. + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef _LINUX_IO_H +#define _LINUX_IO_H + +#include <linux/types.h> +#include <asm/io.h> +#include <asm/page.h> + +struct device; + +void __iowrite32_copy(void __iomem *to, const void *from, size_t count); +void __iowrite64_copy(void __iomem *to, const void *from, size_t count); + +#ifdef CONFIG_MMU +int ioremap_page_range(unsigned long addr, unsigned long end, + phys_addr_t phys_addr, pgprot_t prot); +#else +static inline int ioremap_page_range(unsigned long addr, unsigned long end, + phys_addr_t phys_addr, pgprot_t prot) +{ + return 0; +} +#endif + +/* + * Managed iomap interface + */ +#ifdef CONFIG_HAS_IOPORT +void __iomem * devm_ioport_map(struct device *dev, unsigned long port, + unsigned int nr); +void devm_ioport_unmap(struct device *dev, void __iomem *addr); +#else +static inline void __iomem *devm_ioport_map(struct device *dev, + unsigned long port, + unsigned int nr) +{ + return NULL; +} + +static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr) +{ +} +#endif + +void __iomem *devm_ioremap(struct device *dev, resource_size_t offset, + unsigned long size); +void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset, + unsigned long size); +void devm_iounmap(struct device *dev, void __iomem *addr); +int check_signature(const volatile void __iomem *io_addr, + const unsigned char *signature, int length); +void devm_ioremap_release(struct device *dev, void *res); + +#endif /* _LINUX_IO_H */ |