Rev 5056 | Rev 6102 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1631 | serge | 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 | #ifndef __ASSEMBLY__ |
||
12 | #include |
||
13 | #include |
||
14 | /* |
||
15 | * Resources are tree-like, allowing |
||
16 | * nesting etc.. |
||
17 | */ |
||
18 | struct resource { |
||
19 | resource_size_t start; |
||
20 | resource_size_t end; |
||
21 | const char *name; |
||
22 | unsigned long flags; |
||
23 | struct resource *parent, *sibling, *child; |
||
24 | }; |
||
25 | |||
26 | struct resource_list { |
||
27 | struct resource_list *next; |
||
28 | struct resource *res; |
||
29 | struct pci_dev *dev; |
||
30 | }; |
||
31 | |||
32 | /* |
||
33 | * IO resources have these defined flags. |
||
34 | */ |
||
35 | #define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ |
||
36 | |||
37 | #define IORESOURCE_TYPE_BITS 0x00001f00 /* Resource type */ |
||
3031 | serge | 38 | #define IORESOURCE_IO 0x00000100 /* PCI/ISA I/O ports */ |
1631 | serge | 39 | #define IORESOURCE_MEM 0x00000200 |
3031 | serge | 40 | #define IORESOURCE_REG 0x00000300 /* Register offsets */ |
1631 | serge | 41 | #define IORESOURCE_IRQ 0x00000400 |
42 | #define IORESOURCE_DMA 0x00000800 |
||
43 | #define IORESOURCE_BUS 0x00001000 |
||
44 | |||
45 | #define IORESOURCE_PREFETCH 0x00002000 /* No side effects */ |
||
46 | #define IORESOURCE_READONLY 0x00004000 |
||
47 | #define IORESOURCE_CACHEABLE 0x00008000 |
||
48 | #define IORESOURCE_RANGELENGTH 0x00010000 |
||
49 | #define IORESOURCE_SHADOWABLE 0x00020000 |
||
50 | |||
51 | #define IORESOURCE_SIZEALIGN 0x00040000 /* size indicates alignment */ |
||
52 | #define IORESOURCE_STARTALIGN 0x00080000 /* start field is alignment */ |
||
53 | |||
54 | #define IORESOURCE_MEM_64 0x00100000 |
||
55 | #define IORESOURCE_WINDOW 0x00200000 /* forwarded by bridge */ |
||
56 | #define IORESOURCE_MUXED 0x00400000 /* Resource is software muxed */ |
||
57 | |||
58 | #define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */ |
||
59 | #define IORESOURCE_DISABLED 0x10000000 |
||
5056 | serge | 60 | #define IORESOURCE_UNSET 0x20000000 /* No address assigned yet */ |
1631 | serge | 61 | #define IORESOURCE_AUTO 0x40000000 |
62 | #define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */ |
||
63 | |||
64 | /* PnP IRQ specific bits (IORESOURCE_BITS) */ |
||
65 | #define IORESOURCE_IRQ_HIGHEDGE (1<<0) |
||
66 | #define IORESOURCE_IRQ_LOWEDGE (1<<1) |
||
67 | #define IORESOURCE_IRQ_HIGHLEVEL (1<<2) |
||
68 | #define IORESOURCE_IRQ_LOWLEVEL (1<<3) |
||
69 | #define IORESOURCE_IRQ_SHAREABLE (1<<4) |
||
70 | #define IORESOURCE_IRQ_OPTIONAL (1<<5) |
||
71 | |||
72 | /* PnP DMA specific bits (IORESOURCE_BITS) */ |
||
73 | #define IORESOURCE_DMA_TYPE_MASK (3<<0) |
||
74 | #define IORESOURCE_DMA_8BIT (0<<0) |
||
75 | #define IORESOURCE_DMA_8AND16BIT (1<<0) |
||
76 | #define IORESOURCE_DMA_16BIT (2<<0) |
||
77 | |||
78 | #define IORESOURCE_DMA_MASTER (1<<2) |
||
79 | #define IORESOURCE_DMA_BYTE (1<<3) |
||
80 | #define IORESOURCE_DMA_WORD (1<<4) |
||
81 | |||
82 | #define IORESOURCE_DMA_SPEED_MASK (3<<6) |
||
83 | #define IORESOURCE_DMA_COMPATIBLE (0<<6) |
||
84 | #define IORESOURCE_DMA_TYPEA (1<<6) |
||
85 | #define IORESOURCE_DMA_TYPEB (2<<6) |
||
86 | #define IORESOURCE_DMA_TYPEF (3<<6) |
||
87 | |||
88 | /* PnP memory I/O specific bits (IORESOURCE_BITS) */ |
||
89 | #define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */ |
||
90 | #define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */ |
||
91 | #define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */ |
||
92 | #define IORESOURCE_MEM_TYPE_MASK (3<<3) |
||
93 | #define IORESOURCE_MEM_8BIT (0<<3) |
||
94 | #define IORESOURCE_MEM_16BIT (1<<3) |
||
95 | #define IORESOURCE_MEM_8AND16BIT (2<<3) |
||
96 | #define IORESOURCE_MEM_32BIT (3<<3) |
||
97 | #define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */ |
||
98 | #define IORESOURCE_MEM_EXPANSIONROM (1<<6) |
||
99 | |||
100 | /* PnP I/O specific bits (IORESOURCE_BITS) */ |
||
101 | #define IORESOURCE_IO_16BIT_ADDR (1<<0) |
||
102 | #define IORESOURCE_IO_FIXED (1<<1) |
||
6082 | serge | 103 | #define IORESOURCE_IO_SPARSE (1<<2) |
1631 | serge | 104 | |
105 | /* PCI ROM control bits (IORESOURCE_BITS) */ |
||
106 | #define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */ |
||
107 | #define IORESOURCE_ROM_SHADOW (1<<1) /* ROM is copy at C000:0 */ |
||
108 | #define IORESOURCE_ROM_COPY (1<<2) /* ROM is alloc'd copy, resource field overlaid */ |
||
109 | #define IORESOURCE_ROM_BIOS_COPY (1<<3) /* ROM is BIOS copy, resource field overlaid */ |
||
110 | |||
111 | /* PCI control bits. Shares IORESOURCE_BITS with above PCI ROM. */ |
||
112 | #define IORESOURCE_PCI_FIXED (1<<4) /* Do not move resource */ |
||
113 | |||
6082 | serge | 114 | |
115 | /* helpers to define resources */ |
||
116 | #define DEFINE_RES_NAMED(_start, _size, _name, _flags) \ |
||
117 | { \ |
||
118 | .start = (_start), \ |
||
119 | .end = (_start) + (_size) - 1, \ |
||
120 | .name = (_name), \ |
||
121 | .flags = (_flags), \ |
||
122 | } |
||
123 | |||
124 | #define DEFINE_RES_IO_NAMED(_start, _size, _name) \ |
||
125 | DEFINE_RES_NAMED((_start), (_size), (_name), IORESOURCE_IO) |
||
126 | #define DEFINE_RES_IO(_start, _size) \ |
||
127 | DEFINE_RES_IO_NAMED((_start), (_size), NULL) |
||
128 | |||
129 | #define DEFINE_RES_MEM_NAMED(_start, _size, _name) \ |
||
130 | DEFINE_RES_NAMED((_start), (_size), (_name), IORESOURCE_MEM) |
||
131 | #define DEFINE_RES_MEM(_start, _size) \ |
||
132 | DEFINE_RES_MEM_NAMED((_start), (_size), NULL) |
||
133 | |||
134 | #define DEFINE_RES_IRQ_NAMED(_irq, _name) \ |
||
135 | DEFINE_RES_NAMED((_irq), 1, (_name), IORESOURCE_IRQ) |
||
136 | #define DEFINE_RES_IRQ(_irq) \ |
||
137 | DEFINE_RES_IRQ_NAMED((_irq), NULL) |
||
138 | |||
139 | #define DEFINE_RES_DMA_NAMED(_dma, _name) \ |
||
140 | DEFINE_RES_NAMED((_dma), 1, (_name), IORESOURCE_DMA) |
||
141 | #define DEFINE_RES_DMA(_dma) \ |
||
142 | DEFINE_RES_DMA_NAMED((_dma), NULL) |
||
143 | |||
1631 | serge | 144 | /* PC/ISA/whatever - the normal PC address spaces: IO and memory */ |
145 | extern struct resource ioport_resource; |
||
146 | extern struct resource iomem_resource; |
||
147 | |||
6082 | serge | 148 | extern struct resource *request_resource_conflict(struct resource *root, struct resource *new); |
149 | extern int request_resource(struct resource *root, struct resource *new); |
||
150 | extern int release_resource(struct resource *new); |
||
151 | void release_child_resources(struct resource *new); |
||
152 | extern void reserve_region_with_split(struct resource *root, |
||
153 | resource_size_t start, resource_size_t end, |
||
154 | const char *name); |
||
155 | extern struct resource *insert_resource_conflict(struct resource *parent, struct resource *new); |
||
156 | extern int insert_resource(struct resource *parent, struct resource *new); |
||
157 | extern void insert_resource_expand_to_fit(struct resource *root, struct resource *new); |
||
158 | extern void arch_remove_reservations(struct resource *avail); |
||
159 | extern int allocate_resource(struct resource *root, struct resource *new, |
||
160 | resource_size_t size, resource_size_t min, |
||
161 | resource_size_t max, resource_size_t align, |
||
162 | resource_size_t (*alignf)(void *, |
||
163 | const struct resource *, |
||
164 | resource_size_t, |
||
165 | resource_size_t), |
||
166 | void *alignf_data); |
||
167 | struct resource *lookup_resource(struct resource *root, resource_size_t start); |
||
168 | int adjust_resource(struct resource *res, resource_size_t start, |
||
169 | resource_size_t size); |
||
170 | resource_size_t resource_alignment(struct resource *res); |
||
1631 | serge | 171 | static inline resource_size_t resource_size(const struct resource *res) |
172 | { |
||
173 | return res->end - res->start + 1; |
||
174 | } |
||
175 | static inline unsigned long resource_type(const struct resource *res) |
||
176 | { |
||
177 | return res->flags & IORESOURCE_TYPE_BITS; |
||
178 | } |
||
179 | |||
180 | |||
181 | #endif /* __ASSEMBLY__ */ |
||
182 | #endif /* _LINUX_IOPORT_H */4)><4)>3)><3)>2)><2)>1)><1)>0)><0)>2) |