debuggers.hg

view xen/include/xen/ioport.h @ 3763:0823f72cd071

bitkeeper revision 1.1159.223.80 (4208de05Xtv_u_3smJSRU6ex6bTAfA)

Some functions aren't static and could be (damn C language!).

I tried turning on -Wmissing-prototypes: unfortunately gives warnings
for functions used in asm, which means introducing gratuitous prototypes
for them. Not sure it's worth it.

1) keyhandler.c: keypress_softirq() and do_task_queues() can be static.
2) physdev.c: pcidev_dom0_hidden() can be static.
3) resource.c/resource.h: check_region is deprecated (racy): remove.
4) sched_bvt.c: lots of things can be static.
5) pci/compat.c: not required for Xen.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (authored)
Signed-off-by: ian.pratt@cl.cam.ac.uk
author iap10@freefall.cl.cam.ac.uk
date Tue Feb 08 15:43:01 2005 +0000 (2005-02-08)
parents 9f85adafc1e1
children a00d7a994a59
line source
1 /*
2 * ioport.h Definitions of routines for detecting, reserving and
3 * allocating system resources.
4 *
5 * Authors: Linus Torvalds
6 */
8 #ifndef _LINUX_IOPORT_H
9 #define _LINUX_IOPORT_H
11 /*
12 * Resources are tree-like, allowing
13 * nesting etc..
14 */
15 struct resource {
16 const char *name;
17 unsigned long start, end;
18 unsigned long flags;
19 struct resource *parent, *sibling, *child;
20 };
22 struct resource_list {
23 struct resource_list *next;
24 struct resource *res;
25 struct pci_dev *dev;
26 };
28 /*
29 * IO resources have these defined flags.
30 */
31 #define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */
33 #define IORESOURCE_IO 0x00000100 /* Resource type */
34 #define IORESOURCE_MEM 0x00000200
35 #define IORESOURCE_IRQ 0x00000400
36 #define IORESOURCE_DMA 0x00000800
38 #define IORESOURCE_PREFETCH 0x00001000 /* No side effects */
39 #define IORESOURCE_READONLY 0x00002000
40 #define IORESOURCE_CACHEABLE 0x00004000
41 #define IORESOURCE_RANGELENGTH 0x00008000
42 #define IORESOURCE_SHADOWABLE 0x00010000
43 #define IORESOURCE_BUS_HAS_VGA 0x00080000
45 #define IORESOURCE_UNSET 0x20000000
46 #define IORESOURCE_AUTO 0x40000000
47 #define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */
49 /* ISA PnP IRQ specific bits (IORESOURCE_BITS) */
50 #define IORESOURCE_IRQ_HIGHEDGE (1<<0)
51 #define IORESOURCE_IRQ_LOWEDGE (1<<1)
52 #define IORESOURCE_IRQ_HIGHLEVEL (1<<2)
53 #define IORESOURCE_IRQ_LOWLEVEL (1<<3)
55 /* ISA PnP DMA specific bits (IORESOURCE_BITS) */
56 #define IORESOURCE_DMA_TYPE_MASK (3<<0)
57 #define IORESOURCE_DMA_8BIT (0<<0)
58 #define IORESOURCE_DMA_8AND16BIT (1<<0)
59 #define IORESOURCE_DMA_16BIT (2<<0)
61 #define IORESOURCE_DMA_MASTER (1<<2)
62 #define IORESOURCE_DMA_BYTE (1<<3)
63 #define IORESOURCE_DMA_WORD (1<<4)
65 #define IORESOURCE_DMA_SPEED_MASK (3<<6)
66 #define IORESOURCE_DMA_COMPATIBLE (0<<6)
67 #define IORESOURCE_DMA_TYPEA (1<<6)
68 #define IORESOURCE_DMA_TYPEB (2<<6)
69 #define IORESOURCE_DMA_TYPEF (3<<6)
71 /* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */
72 #define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */
73 #define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */
74 #define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */
75 #define IORESOURCE_MEM_TYPE_MASK (3<<3)
76 #define IORESOURCE_MEM_8BIT (0<<3)
77 #define IORESOURCE_MEM_16BIT (1<<3)
78 #define IORESOURCE_MEM_8AND16BIT (2<<3)
79 #define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */
80 #define IORESOURCE_MEM_EXPANSIONROM (1<<6)
82 /* PC/ISA/whatever - the normal PC address spaces: IO and memory */
83 extern struct resource ioport_resource;
84 extern struct resource iomem_resource;
86 extern int get_resource_list(struct resource *, char *buf, int size);
88 extern int check_resource(struct resource *root, unsigned long, unsigned long);
89 extern int request_resource(struct resource *root, struct resource *new);
90 extern int release_resource(struct resource *new);
91 extern int allocate_resource(struct resource *root, struct resource *new,
92 unsigned long size,
93 unsigned long min, unsigned long max,
94 unsigned long align,
95 void (*alignf)(void *, struct resource *,
96 unsigned long, unsigned long),
97 void *alignf_data);
99 /* Convenience shorthand with allocation */
100 #define request_region(start,n,name) __request_region(&ioport_resource, (start), (n), (name))
101 #define request_mem_region(start,n,name) __request_region(&iomem_resource, (start), (n), (name))
103 #define release_region(start,n) __release_region(&ioport_resource, (start), (n))
104 #define release_mem_region(start,n) __release_region(&iomem_resource, (start), (n))
106 extern void __release_region(struct resource *, unsigned long, unsigned long);
108 extern struct resource * __request_region(struct resource *, unsigned long start, unsigned long n, const char *name);
110 #define get_ioport_list(buf) get_resource_list(&ioport_resource, buf, PAGE_SIZE)
111 #define get_mem_list(buf) get_resource_list(&iomem_resource, buf, PAGE_SIZE)
113 #define HAVE_AUTOIRQ
114 extern void autoirq_setup(int waittime);
115 extern int autoirq_report(int waittime);
117 #endif /* _LINUX_IOPORT_H */