2 * $Id: pci.h,v 1.8 2000/04/21 11:58:00 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>
27 #include <linux/types.h>
37 #include <sys/types.h>
39 typedef u_int8_t byte;
41 typedef u_int16_t word;
42 typedef u_int16_t u16;
43 typedef u_int32_t u32;
47 #include <sys/param.h>
49 typedef u_int8_t byte;
51 typedef u_int16_t word;
52 typedef u_int16_t u16;
53 typedef u_int32_t u32;
56 #ifdef HAVE_LONG_ADDRESS
57 typedef unsigned long long pciaddr_t;
59 typedef unsigned long pciaddr_t;
63 * PCI Access Structure
69 #define PCI_ACCESS_AUTO 0 /* Autodetection (params: none) */
70 #define PCI_ACCESS_PROC_BUS_PCI 1 /* Linux /proc/bus/pci (params: path) */
71 #define PCI_ACCESS_SYSCALLS 2 /* pciconfig_read() syscalls (params: none) */
72 #define PCI_ACCESS_I386_TYPE1 3 /* i386 ports, type 1 (params: none) */
73 #define PCI_ACCESS_I386_TYPE2 4 /* i386 ports, type 2 (params: none) */
74 #define PCI_ACCESS_FBSD_DEVICE 5 /* FreeBSD /dev/pci (params: path) */
75 #define PCI_ACCESS_AIX_DEVICE 6 /* /dev/pci0, /dev/bus0, etc. */
76 #define PCI_ACCESS_DUMP 7 /* Dump file (params: filename) */
77 #define PCI_ACCESS_MAX 8
80 /* Options you can change: */
81 unsigned int method; /* Access method */
82 char *method_params[PCI_ACCESS_MAX]; /* Parameters for the methods */
83 int writeable; /* Open in read/write mode */
84 int buscentric; /* Bus-centric view of the world */
85 char *id_file_name; /* Name of ID list file */
86 int numeric_ids; /* Don't resolve device IDs to names */
87 int debugging; /* Turn on debugging messages */
89 /* Functions you can override: */
90 void (*error)(char *msg, ...); /* Write error message and quit */
91 void (*warning)(char *msg, ...); /* Write a warning message */
92 void (*debug)(char *msg, ...); /* Write a debugging message */
94 struct pci_dev *devices; /* Devices found on this bus */
96 /* Fields used internally: */
97 struct pci_methods *methods;
98 char *nl_list; /* Name list cache */
99 struct nl_entry **nl_hash;
100 int fd; /* proc: fd */
101 int fd_rw; /* proc: fd opened read-write */
102 struct pci_dev *cached_dev; /* proc: device the fd is for */
103 int fd_pos; /* proc: current position */
106 /* Initialize PCI access */
107 struct pci_access *pci_alloc(void);
108 void pci_init(struct pci_access *);
109 void pci_cleanup(struct pci_access *);
111 /* Scanning of devices */
112 void pci_scan_bus(struct pci_access *acc);
113 struct pci_dev *pci_get_dev(struct pci_access *acc, int bus, int dev, int func); /* Raw access to specified device */
114 void pci_free_dev(struct pci_dev *);
121 struct pci_dev *next; /* Next device in the chain */
122 word bus; /* Higher byte can select host bridges */
123 byte dev, func; /* Device and function */
125 /* These fields are set by pci_fill_info() */
126 int known_fields; /* Set of info fields already known */
127 word vendor_id, device_id; /* Identity of the device */
128 int irq; /* IRQ number */
129 pciaddr_t base_addr[6]; /* Base addresses */
130 pciaddr_t size[6]; /* Region sizes */
131 pciaddr_t rom_base_addr; /* Expansion ROM base address */
132 pciaddr_t rom_size; /* Expansion ROM size */
134 /* Fields used internally: */
135 struct pci_access *access;
136 struct pci_methods *methods;
137 byte *cache; /* Cached information */
139 int hdrtype; /* Direct methods: header type */
140 void *aux; /* Auxillary data */
143 #define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
144 #define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
146 byte pci_read_byte(struct pci_dev *, int pos); /* Access to configuration space */
147 word pci_read_word(struct pci_dev *, int pos);
148 u32 pci_read_long(struct pci_dev *, int pos);
149 int pci_read_block(struct pci_dev *, int pos, byte *buf, int len);
150 int pci_write_byte(struct pci_dev *, int pos, byte data);
151 int pci_write_word(struct pci_dev *, int pos, word data);
152 int pci_write_long(struct pci_dev *, int pos, u32 data);
153 int pci_write_block(struct pci_dev *, int pos, byte *buf, int len);
155 int pci_fill_info(struct pci_dev *, int flags); /* Fill in device information */
157 #define PCI_FILL_IDENT 1
158 #define PCI_FILL_IRQ 2
159 #define PCI_FILL_BASES 4
160 #define PCI_FILL_ROM_BASE 8
161 #define PCI_FILL_SIZES 16
162 #define PCI_FILL_RESCAN 0x10000
164 void pci_setup_cache(struct pci_dev *, byte *cache, int len);
171 int bus, slot, func; /* -1 = ANY */
175 void pci_filter_init(struct pci_access *, struct pci_filter *);
176 char *pci_filter_parse_slot(struct pci_filter *, char *);
177 char *pci_filter_parse_id(struct pci_filter *, char *);
178 int pci_filter_match(struct pci_filter *, struct pci_dev *);
184 char *pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
185 void pci_free_name_list(struct pci_access *a);
187 #define PCI_LOOKUP_VENDOR 1
188 #define PCI_LOOKUP_DEVICE 2
189 #define PCI_LOOKUP_CLASS 4
190 #define PCI_LOOKUP_SUBSYSTEM 8
191 #define PCI_LOOKUP_PROGIF 16
192 #define PCI_LOOKUP_NUMERIC 0x10000