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git.ipfire.org Git - thirdparty/pciutils.git/blob - lib/pci.h
2 * $Id: pci.h,v 1.5 1999/07/20 12:13:40 mj Exp $
6 * Copyright (c) 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
8 * Can be freely distributed and used under the terms of the GNU GPL.
16 #ifdef HAVE_OWN_HEADER_H
19 #include <linux/pci.h>
26 #include <linux/types.h>
34 #ifdef HAVE_LONG_ADDRESS
35 typedef unsigned long long pciaddr_t
;
37 typedef unsigned long pciaddr_t
;
41 * PCI Access Structure
47 #define PCI_ACCESS_AUTO 0 /* Autodetection (params: none) */
48 #define PCI_ACCESS_PROC_BUS_PCI 1 /* Linux /proc/bus/pci (params: path) */
49 #define PCI_ACCESS_SYSCALLS 2 /* pciconfig_read() syscalls (params: none) */
50 #define PCI_ACCESS_I386_TYPE1 3 /* i386 ports, type 1 (params: none) */
51 #define PCI_ACCESS_I386_TYPE2 4 /* i386 ports, type 2 (params: none) */
52 #define PCI_ACCESS_DUMP 5 /* Dump file (params: filename) */
53 #define PCI_ACCESS_MAX 6
56 /* Options you can change: */
57 unsigned int method
; /* Access method */
58 char *method_params
[PCI_ACCESS_MAX
]; /* Parameters for the methods */
59 int writeable
; /* Open in read/write mode */
60 int buscentric
; /* Bus-centric view of the world */
61 char *id_file_name
; /* Name of ID list file */
62 int numeric_ids
; /* Don't resolve device IDs to names */
63 int debugging
; /* Turn on debugging messages */
65 /* Functions you can override: */
66 void (*error
)(char *msg
, ...); /* Write error message and quit */
67 void (*warning
)(char *msg
, ...); /* Write a warning message */
68 void (*debug
)(char *msg
, ...); /* Write a debugging message */
70 struct pci_dev
*devices
; /* Devices found on this bus */
72 /* Fields used internally: */
73 struct pci_methods
*methods
;
74 char *nl_list
; /* Name list cache */
75 struct nl_entry
**nl_hash
;
76 int fd
; /* proc: fd */
77 int fd_rw
; /* proc: fd opened read-write */
78 struct pci_dev
*cached_dev
; /* proc: device the fd is for */
79 int fd_pos
; /* proc: current position */
82 /* Initialize PCI access */
83 struct pci_access
*pci_alloc(void);
84 void pci_init(struct pci_access
*);
85 void pci_cleanup(struct pci_access
*);
87 /* Scanning of devices */
88 void pci_scan_bus(struct pci_access
*acc
);
89 struct pci_dev
*pci_get_dev(struct pci_access
*acc
, int bus
, int dev
, int func
); /* Raw access to specified device */
90 void pci_free_dev(struct pci_dev
*);
97 struct pci_dev
*next
; /* Next device in the chain */
98 word bus
; /* Higher byte can select host bridges */
99 byte dev
, func
; /* Device and function */
101 /* These fields are set by pci_fill_info() */
102 int known_fields
; /* Set of info fields already known */
103 word vendor_id
, device_id
; /* Identity of the device */
104 int irq
; /* IRQ number */
105 pciaddr_t base_addr
[6]; /* Base addresses */
106 pciaddr_t size
[6]; /* Region sizes */
107 pciaddr_t rom_base_addr
; /* Expansion ROM base address */
108 pciaddr_t rom_size
; /* Expansion ROM size */
110 /* Fields used internally: */
111 struct pci_access
*access
;
112 struct pci_methods
*methods
;
113 byte
*cache
; /* Cached information */
115 int hdrtype
; /* Direct methods: header type */
116 void *aux
; /* Auxillary data */
119 #define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
120 #define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
122 byte
pci_read_byte(struct pci_dev
*, int pos
); /* Access to configuration space */
123 word
pci_read_word(struct pci_dev
*, int pos
);
124 u32
pci_read_long(struct pci_dev
*, int pos
);
125 int pci_read_block(struct pci_dev
*, int pos
, byte
*buf
, int len
);
126 int pci_write_byte(struct pci_dev
*, int pos
, byte data
);
127 int pci_write_word(struct pci_dev
*, int pos
, word data
);
128 int pci_write_long(struct pci_dev
*, int pos
, u32 data
);
129 int pci_write_block(struct pci_dev
*, int pos
, byte
*buf
, int len
);
131 int pci_fill_info(struct pci_dev
*, int flags
); /* Fill in device information */
133 #define PCI_FILL_IDENT 1
134 #define PCI_FILL_IRQ 2
135 #define PCI_FILL_BASES 4
136 #define PCI_FILL_ROM_BASE 8
137 #define PCI_FILL_SIZES 16
138 #define PCI_FILL_RESCAN 0x10000
140 void pci_setup_cache(struct pci_dev
*, byte
*cache
, int len
);
147 int bus
, slot
, func
; /* -1 = ANY */
151 void pci_filter_init(struct pci_access
*, struct pci_filter
*);
152 char *pci_filter_parse_slot(struct pci_filter
*, char *);
153 char *pci_filter_parse_id(struct pci_filter
*, char *);
154 int pci_filter_match(struct pci_filter
*, struct pci_dev
*);
160 char *pci_lookup_name(struct pci_access
*a
, char *buf
, int size
, int flags
, u32 arg1
, u32 arg2
);
161 void pci_free_name_list(struct pci_access
*a
);
163 #define PCI_LOOKUP_VENDOR 1
164 #define PCI_LOOKUP_DEVICE 2
165 #define PCI_LOOKUP_CLASS 4
166 #define PCI_LOOKUP_SUBSYSTEM 8
167 #define PCI_LOOKUP_NUMERIC 0x10000