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| Rev | Author | Line No. | Line |
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| 1631 | serge | 1 | /* |
| 2 | * ioport.h Definitions of routines for detecting, reserving and |
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| 3 | * allocating system resources. |
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| 4 | * |
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| 5 | * Authors: Linus Torvalds |
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| 6 | */ |
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| 7 | |||
| 8 | #ifndef _LINUX_IOPORT_H |
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| 9 | #define _LINUX_IOPORT_H |
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| 10 | |||
| 11 | #ifndef __ASSEMBLY__ |
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| 12 | #include |
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| 13 | #include |
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| 14 | /* |
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| 15 | * Resources are tree-like, allowing |
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| 16 | * nesting etc.. |
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| 17 | */ |
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| 18 | struct resource { |
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| 19 | resource_size_t start; |
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| 20 | resource_size_t end; |
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| 21 | const char *name; |
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| 22 | unsigned long flags; |
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| 23 | struct resource *parent, *sibling, *child; |
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| 24 | }; |
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| 25 | |||
| 26 | struct resource_list { |
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| 27 | struct resource_list *next; |
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| 28 | struct resource *res; |
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| 29 | struct pci_dev *dev; |
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| 30 | }; |
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| 31 | |||
| 32 | /* |
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| 33 | * IO resources have these defined flags. |
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| 34 | */ |
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| 35 | #define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ |
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| 36 | |||
| 37 | #define IORESOURCE_TYPE_BITS 0x00001f00 /* Resource type */ |
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| 38 | #define IORESOURCE_IO 0x00000100 |
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| 39 | #define IORESOURCE_MEM 0x00000200 |
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| 40 | #define IORESOURCE_IRQ 0x00000400 |
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| 41 | #define IORESOURCE_DMA 0x00000800 |
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| 42 | #define IORESOURCE_BUS 0x00001000 |
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| 43 | |||
| 44 | #define IORESOURCE_PREFETCH 0x00002000 /* No side effects */ |
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| 45 | #define IORESOURCE_READONLY 0x00004000 |
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| 46 | #define IORESOURCE_CACHEABLE 0x00008000 |
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| 47 | #define IORESOURCE_RANGELENGTH 0x00010000 |
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| 48 | #define IORESOURCE_SHADOWABLE 0x00020000 |
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| 49 | |||
| 50 | #define IORESOURCE_SIZEALIGN 0x00040000 /* size indicates alignment */ |
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| 51 | #define IORESOURCE_STARTALIGN 0x00080000 /* start field is alignment */ |
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| 52 | |||
| 53 | #define IORESOURCE_MEM_64 0x00100000 |
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| 54 | #define IORESOURCE_WINDOW 0x00200000 /* forwarded by bridge */ |
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| 55 | #define IORESOURCE_MUXED 0x00400000 /* Resource is software muxed */ |
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| 56 | |||
| 57 | #define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */ |
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| 58 | #define IORESOURCE_DISABLED 0x10000000 |
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| 59 | #define IORESOURCE_UNSET 0x20000000 |
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| 60 | #define IORESOURCE_AUTO 0x40000000 |
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| 61 | #define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */ |
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| 62 | |||
| 63 | /* PnP IRQ specific bits (IORESOURCE_BITS) */ |
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| 64 | #define IORESOURCE_IRQ_HIGHEDGE (1<<0) |
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| 65 | #define IORESOURCE_IRQ_LOWEDGE (1<<1) |
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| 66 | #define IORESOURCE_IRQ_HIGHLEVEL (1<<2) |
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| 67 | #define IORESOURCE_IRQ_LOWLEVEL (1<<3) |
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| 68 | #define IORESOURCE_IRQ_SHAREABLE (1<<4) |
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| 69 | #define IORESOURCE_IRQ_OPTIONAL (1<<5) |
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| 70 | |||
| 71 | /* PnP DMA specific bits (IORESOURCE_BITS) */ |
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| 72 | #define IORESOURCE_DMA_TYPE_MASK (3<<0) |
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| 73 | #define IORESOURCE_DMA_8BIT (0<<0) |
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| 74 | #define IORESOURCE_DMA_8AND16BIT (1<<0) |
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| 75 | #define IORESOURCE_DMA_16BIT (2<<0) |
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| 76 | |||
| 77 | #define IORESOURCE_DMA_MASTER (1<<2) |
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| 78 | #define IORESOURCE_DMA_BYTE (1<<3) |
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| 79 | #define IORESOURCE_DMA_WORD (1<<4) |
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| 80 | |||
| 81 | #define IORESOURCE_DMA_SPEED_MASK (3<<6) |
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| 82 | #define IORESOURCE_DMA_COMPATIBLE (0<<6) |
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| 83 | #define IORESOURCE_DMA_TYPEA (1<<6) |
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| 84 | #define IORESOURCE_DMA_TYPEB (2<<6) |
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| 85 | #define IORESOURCE_DMA_TYPEF (3<<6) |
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| 86 | |||
| 87 | /* PnP memory I/O specific bits (IORESOURCE_BITS) */ |
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| 88 | #define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */ |
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| 89 | #define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */ |
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| 90 | #define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */ |
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| 91 | #define IORESOURCE_MEM_TYPE_MASK (3<<3) |
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| 92 | #define IORESOURCE_MEM_8BIT (0<<3) |
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| 93 | #define IORESOURCE_MEM_16BIT (1<<3) |
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| 94 | #define IORESOURCE_MEM_8AND16BIT (2<<3) |
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| 95 | #define IORESOURCE_MEM_32BIT (3<<3) |
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| 96 | #define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */ |
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| 97 | #define IORESOURCE_MEM_EXPANSIONROM (1<<6) |
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| 98 | |||
| 99 | /* PnP I/O specific bits (IORESOURCE_BITS) */ |
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| 100 | #define IORESOURCE_IO_16BIT_ADDR (1<<0) |
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| 101 | #define IORESOURCE_IO_FIXED (1<<1) |
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| 102 | |||
| 103 | /* PCI ROM control bits (IORESOURCE_BITS) */ |
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| 104 | #define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */ |
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| 105 | #define IORESOURCE_ROM_SHADOW (1<<1) /* ROM is copy at C000:0 */ |
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| 106 | #define IORESOURCE_ROM_COPY (1<<2) /* ROM is alloc'd copy, resource field overlaid */ |
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| 107 | #define IORESOURCE_ROM_BIOS_COPY (1<<3) /* ROM is BIOS copy, resource field overlaid */ |
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| 108 | |||
| 109 | /* PCI control bits. Shares IORESOURCE_BITS with above PCI ROM. */ |
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| 110 | #define IORESOURCE_PCI_FIXED (1<<4) /* Do not move resource */ |
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| 111 | |||
| 112 | /* PC/ISA/whatever - the normal PC address spaces: IO and memory */ |
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| 113 | extern struct resource ioport_resource; |
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| 114 | extern struct resource iomem_resource; |
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| 115 | |||
| 116 | static inline resource_size_t resource_size(const struct resource *res) |
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| 117 | { |
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| 118 | return res->end - res->start + 1; |
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| 119 | } |
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| 120 | static inline unsigned long resource_type(const struct resource *res) |
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| 121 | { |
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| 122 | return res->flags & IORESOURCE_TYPE_BITS; |
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| 123 | } |
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| 124 | |||
| 125 | |||
| 126 | #endif /* __ASSEMBLY__ */ |
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| 127 | #endif /* _LINUX_IOPORT_H */ |