2 * Derived from Linux include/linux/ioport.h.
3 * Original comment at head of ioport.h:
5 * ioport.h Definitions of routines for detecting, reserving and
6 * allocating system resources.
8 * Authors: Linus Torvalds
11 #ifndef _LWK_RESOURCE_H
12 #define _LWK_RESOURCE_H
15 * Resources are tree-like, allowing
20 unsigned long start, end;
22 struct resource *parent, *sibling, *child;
26 * PC/ISA/whatever - the normal PC address spaces: IO and memory
28 extern struct resource ioport_resource;
29 extern struct resource iomem_resource;
32 * IO resources have these defined flags.
34 #define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */
36 #define IORESOURCE_IO 0x00000100 /* Resource type */
37 #define IORESOURCE_MEM 0x00000200
38 #define IORESOURCE_IRQ 0x00000400
39 #define IORESOURCE_DMA 0x00000800
41 #define IORESOURCE_PREFETCH 0x00001000 /* No side effects */
42 #define IORESOURCE_READONLY 0x00002000
43 #define IORESOURCE_CACHEABLE 0x00004000
44 #define IORESOURCE_RANGELENGTH 0x00008000
45 #define IORESOURCE_SHADOWABLE 0x00010000
46 #define IORESOURCE_BUS_HAS_VGA 0x00080000
48 #define IORESOURCE_DISABLED 0x10000000
49 #define IORESOURCE_UNSET 0x20000000
50 #define IORESOURCE_AUTO 0x40000000
51 #define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */
53 /* ISA PnP IRQ specific bits (IORESOURCE_BITS) */
54 #define IORESOURCE_IRQ_HIGHEDGE (1<<0)
55 #define IORESOURCE_IRQ_LOWEDGE (1<<1)
56 #define IORESOURCE_IRQ_HIGHLEVEL (1<<2)
57 #define IORESOURCE_IRQ_LOWLEVEL (1<<3)
59 /* ISA PnP DMA specific bits (IORESOURCE_BITS) */
60 #define IORESOURCE_DMA_TYPE_MASK (3<<0)
61 #define IORESOURCE_DMA_8BIT (0<<0)
62 #define IORESOURCE_DMA_8AND16BIT (1<<0)
63 #define IORESOURCE_DMA_16BIT (2<<0)
65 #define IORESOURCE_DMA_MASTER (1<<2)
66 #define IORESOURCE_DMA_BYTE (1<<3)
67 #define IORESOURCE_DMA_WORD (1<<4)
69 #define IORESOURCE_DMA_SPEED_MASK (3<<6)
70 #define IORESOURCE_DMA_COMPATIBLE (0<<6)
71 #define IORESOURCE_DMA_TYPEA (1<<6)
72 #define IORESOURCE_DMA_TYPEB (2<<6)
73 #define IORESOURCE_DMA_TYPEF (3<<6)
75 /* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */
76 #define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */
77 #define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */
78 #define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */
79 #define IORESOURCE_MEM_TYPE_MASK (3<<3)
80 #define IORESOURCE_MEM_8BIT (0<<3)
81 #define IORESOURCE_MEM_16BIT (1<<3)
82 #define IORESOURCE_MEM_8AND16BIT (2<<3)
83 #define IORESOURCE_MEM_32BIT (3<<3)
84 #define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */
85 #define IORESOURCE_MEM_EXPANSIONROM (1<<6)
87 /* PCI ROM control bits (IORESOURCE_BITS) */
88 #define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */
89 #define IORESOURCE_ROM_SHADOW (1<<1) /* ROM is copy at C000:0 */
90 #define IORESOURCE_ROM_COPY (1<<2) /* ROM is alloc'd copy, resource field overlaid */
92 extern int request_resource(struct resource *root, struct resource *new);
93 extern struct resource * ____request_resource(struct resource *root, struct resource *new);
94 extern int release_resource(struct resource *new);
95 extern int insert_resource(struct resource *parent, struct resource *new);
96 extern int allocate_resource(struct resource *root, struct resource *new,
98 unsigned long min, unsigned long max,
100 void (*alignf)(void *, struct resource *,
101 unsigned long, unsigned long),
103 extern int adjust_resource(struct resource *res, unsigned long start,