Line data Source code
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 1 :
70 : #endif /* _LINUX_IO_H */
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