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
25 struct device;
26
27 void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
28 void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
29
30 #ifdef CONFIG_MMU
31 int ioremap_page_range(unsigned long addr, unsigned long end,
32 unsigned long phys_addr, pgprot_t prot);
33 #else
34 static inline int ioremap_page_range(unsigned long addr, unsigned long end,
35 unsigned long phys_addr, pgprot_t prot)
36 {
37 return 0;
38 }
39 #endif
40
41 /*
42 * Managed iomap interface
43 */
44 #ifdef CONFIG_HAS_IOPORT
45 void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
46 unsigned int nr);
47 void devm_ioport_unmap(struct device *dev, void __iomem *addr);
48 #else
49 static inline void __iomem *devm_ioport_map(struct device *dev,
50 unsigned long port,
51 unsigned int nr)
52 {
53 return NULL;
54 }
55
56 static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
57 {
58 }
59 #endif
60
61 void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
62 unsigned long size);
63 void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
64 unsigned long size);
65 void devm_iounmap(struct device *dev, void __iomem *addr);
66 int check_signature(const volatile void __iomem *io_addr,
67 const unsigned char *signature, int length);
68 void devm_ioremap_release(struct device *dev, void *res);
69
70 #endif /* _LINUX_IO_H */
71
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