diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/ioport.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/ioport.h')
-rw-r--r-- | include/linux/ioport.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/include/linux/ioport.h b/include/linux/ioport.h new file mode 100644 index 000000000000..18d010bee635 --- /dev/null +++ b/include/linux/ioport.h | |||
@@ -0,0 +1,127 @@ | |||
1 | /* | ||
2 | * ioport.h Definitions of routines for detecting, reserving and | ||
3 | * allocating system resources. | ||
4 | * | ||
5 | * Authors: Linus Torvalds | ||
6 | */ | ||
7 | |||
8 | #ifndef _LINUX_IOPORT_H | ||
9 | #define _LINUX_IOPORT_H | ||
10 | |||
11 | #include <linux/compiler.h> | ||
12 | /* | ||
13 | * Resources are tree-like, allowing | ||
14 | * nesting etc.. | ||
15 | */ | ||
16 | struct resource { | ||
17 | const char *name; | ||
18 | unsigned long start, end; | ||
19 | unsigned long flags; | ||
20 | struct resource *parent, *sibling, *child; | ||
21 | }; | ||
22 | |||
23 | struct resource_list { | ||
24 | struct resource_list *next; | ||
25 | struct resource *res; | ||
26 | struct pci_dev *dev; | ||
27 | }; | ||
28 | |||
29 | /* | ||
30 | * IO resources have these defined flags. | ||
31 | */ | ||
32 | #define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ | ||
33 | |||
34 | #define IORESOURCE_IO 0x00000100 /* Resource type */ | ||
35 | #define IORESOURCE_MEM 0x00000200 | ||
36 | #define IORESOURCE_IRQ 0x00000400 | ||
37 | #define IORESOURCE_DMA 0x00000800 | ||
38 | |||
39 | #define IORESOURCE_PREFETCH 0x00001000 /* No side effects */ | ||
40 | #define IORESOURCE_READONLY 0x00002000 | ||
41 | #define IORESOURCE_CACHEABLE 0x00004000 | ||
42 | #define IORESOURCE_RANGELENGTH 0x00008000 | ||
43 | #define IORESOURCE_SHADOWABLE 0x00010000 | ||
44 | #define IORESOURCE_BUS_HAS_VGA 0x00080000 | ||
45 | |||
46 | #define IORESOURCE_DISABLED 0x10000000 | ||
47 | #define IORESOURCE_UNSET 0x20000000 | ||
48 | #define IORESOURCE_AUTO 0x40000000 | ||
49 | #define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */ | ||
50 | |||
51 | /* ISA PnP IRQ specific bits (IORESOURCE_BITS) */ | ||
52 | #define IORESOURCE_IRQ_HIGHEDGE (1<<0) | ||
53 | #define IORESOURCE_IRQ_LOWEDGE (1<<1) | ||
54 | #define IORESOURCE_IRQ_HIGHLEVEL (1<<2) | ||
55 | #define IORESOURCE_IRQ_LOWLEVEL (1<<3) | ||
56 | |||
57 | /* ISA PnP DMA specific bits (IORESOURCE_BITS) */ | ||
58 | #define IORESOURCE_DMA_TYPE_MASK (3<<0) | ||
59 | #define IORESOURCE_DMA_8BIT (0<<0) | ||
60 | #define IORESOURCE_DMA_8AND16BIT (1<<0) | ||
61 | #define IORESOURCE_DMA_16BIT (2<<0) | ||
62 | |||
63 | #define IORESOURCE_DMA_MASTER (1<<2) | ||
64 | #define IORESOURCE_DMA_BYTE (1<<3) | ||
65 | #define IORESOURCE_DMA_WORD (1<<4) | ||
66 | |||
67 | #define IORESOURCE_DMA_SPEED_MASK (3<<6) | ||
68 | #define IORESOURCE_DMA_COMPATIBLE (0<<6) | ||
69 | #define IORESOURCE_DMA_TYPEA (1<<6) | ||
70 | #define IORESOURCE_DMA_TYPEB (2<<6) | ||
71 | #define IORESOURCE_DMA_TYPEF (3<<6) | ||
72 | |||
73 | /* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */ | ||
74 | #define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */ | ||
75 | #define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */ | ||
76 | #define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */ | ||
77 | #define IORESOURCE_MEM_TYPE_MASK (3<<3) | ||
78 | #define IORESOURCE_MEM_8BIT (0<<3) | ||
79 | #define IORESOURCE_MEM_16BIT (1<<3) | ||
80 | #define IORESOURCE_MEM_8AND16BIT (2<<3) | ||
81 | #define IORESOURCE_MEM_32BIT (3<<3) | ||
82 | #define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */ | ||
83 | #define IORESOURCE_MEM_EXPANSIONROM (1<<6) | ||
84 | |||
85 | /* PCI ROM control bits (IORESOURCE_BITS) */ | ||
86 | #define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */ | ||
87 | #define IORESOURCE_ROM_SHADOW (1<<1) /* ROM is copy at C000:0 */ | ||
88 | #define IORESOURCE_ROM_COPY (1<<2) /* ROM is alloc'd copy, resource field overlaid */ | ||
89 | |||
90 | /* PC/ISA/whatever - the normal PC address spaces: IO and memory */ | ||
91 | extern struct resource ioport_resource; | ||
92 | extern struct resource iomem_resource; | ||
93 | |||
94 | extern int request_resource(struct resource *root, struct resource *new); | ||
95 | extern struct resource * ____request_resource(struct resource *root, struct resource *new); | ||
96 | extern int release_resource(struct resource *new); | ||
97 | extern int insert_resource(struct resource *parent, struct resource *new); | ||
98 | extern int allocate_resource(struct resource *root, struct resource *new, | ||
99 | unsigned long size, | ||
100 | unsigned long min, unsigned long max, | ||
101 | unsigned long align, | ||
102 | void (*alignf)(void *, struct resource *, | ||
103 | unsigned long, unsigned long), | ||
104 | void *alignf_data); | ||
105 | int adjust_resource(struct resource *res, unsigned long start, | ||
106 | unsigned long size); | ||
107 | |||
108 | /* Convenience shorthand with allocation */ | ||
109 | #define request_region(start,n,name) __request_region(&ioport_resource, (start), (n), (name)) | ||
110 | #define request_mem_region(start,n,name) __request_region(&iomem_resource, (start), (n), (name)) | ||
111 | #define rename_region(region, newname) do { (region)->name = (newname); } while (0) | ||
112 | |||
113 | extern struct resource * __request_region(struct resource *, unsigned long start, unsigned long n, const char *name); | ||
114 | |||
115 | /* Compatibility cruft */ | ||
116 | #define release_region(start,n) __release_region(&ioport_resource, (start), (n)) | ||
117 | #define check_mem_region(start,n) __check_region(&iomem_resource, (start), (n)) | ||
118 | #define release_mem_region(start,n) __release_region(&iomem_resource, (start), (n)) | ||
119 | |||
120 | extern int __check_region(struct resource *, unsigned long, unsigned long); | ||
121 | extern void __release_region(struct resource *, unsigned long, unsigned long); | ||
122 | |||
123 | static inline int __deprecated check_region(unsigned long s, unsigned long n) | ||
124 | { | ||
125 | return __check_region(&ioport_resource, s, n); | ||
126 | } | ||
127 | #endif /* _LINUX_IOPORT_H */ | ||