2 * $Id: pci.h,v 1.12 2003/01/04 11:04:39 mj Exp $
6 * Copyright (c) 1997--2002 Martin Mares <mj@ucw.cz>
8 * Can be freely distributed and used under the terms of the GNU GPL.
22 #include <linux/types.h>
32 #include <sys/types.h>
34 typedef u_int8_t byte;
36 typedef u_int16_t word;
37 typedef u_int16_t u16;
38 typedef u_int32_t u32;
42 #include <sys/types.h>
44 typedef u_int8_t byte;
46 typedef u_int16_t word;
47 typedef u_int16_t u16;
48 typedef u_int32_t u32;
52 #include <sys/param.h>
54 typedef u_int8_t byte;
56 typedef u_int16_t word;
57 typedef u_int16_t u16;
58 typedef u_int32_t u32;
61 #ifdef HAVE_LONG_ADDRESS
62 typedef unsigned long long pciaddr_t;
64 typedef unsigned long pciaddr_t;
68 * PCI Access Structure
74 enum pci_access_type {
75 /* Known access methods, remember to update access.c as well */
76 PCI_ACCESS_AUTO, /* Autodetection (params: none) */
77 PCI_ACCESS_PROC_BUS_PCI, /* Linux /proc/bus/pci (params: path) */
78 PCI_ACCESS_I386_TYPE1, /* i386 ports, type 1 (params: none) */
79 PCI_ACCESS_I386_TYPE2, /* i386 ports, type 2 (params: none) */
80 PCI_ACCESS_FBSD_DEVICE, /* FreeBSD /dev/pci (params: path) */
81 PCI_ACCESS_AIX_DEVICE, /* /dev/pci0, /dev/bus0, etc. */
82 PCI_ACCESS_NBSD_LIBPCI, /* NetBSD libpci */
83 PCI_ACCESS_DUMP, /* Dump file (params: filename) */
88 /* Options you can change: */
89 unsigned int method; /* Access method */
90 char *method_params[PCI_ACCESS_MAX]; /* Parameters for the methods */
91 int writeable; /* Open in read/write mode */
92 int buscentric; /* Bus-centric view of the world */
93 char *id_file_name; /* Name of ID list file */
94 int numeric_ids; /* Don't resolve device IDs to names */
95 int debugging; /* Turn on debugging messages */
97 /* Functions you can override: */
98 void (*error)(char *msg, ...); /* Write error message and quit */
99 void (*warning)(char *msg, ...); /* Write a warning message */
100 void (*debug)(char *msg, ...); /* Write a debugging message */
102 struct pci_dev *devices; /* Devices found on this bus */
104 /* Fields used internally: */
105 struct pci_methods *methods;
106 char *nl_list; /* Name list cache */
107 struct nl_entry **nl_hash;
108 int fd; /* proc: fd */
109 int fd_rw; /* proc: fd opened read-write */
110 struct pci_dev *cached_dev; /* proc: device the fd is for */
111 int fd_pos; /* proc: current position */
114 /* Initialize PCI access */
115 struct pci_access *pci_alloc(void);
116 void pci_init(struct pci_access *);
117 void pci_cleanup(struct pci_access *);
119 /* Scanning of devices */
120 void pci_scan_bus(struct pci_access *acc);
121 struct pci_dev *pci_get_dev(struct pci_access *acc, int bus, int dev, int func); /* Raw access to specified device */
122 void pci_free_dev(struct pci_dev *);
129 struct pci_dev *next; /* Next device in the chain */
130 word bus; /* Higher byte can select host bridges */
131 byte dev, func; /* Device and function */
133 /* These fields are set by pci_fill_info() */
134 int known_fields; /* Set of info fields already known */
135 word vendor_id, device_id; /* Identity of the device */
136 int irq; /* IRQ number */
137 pciaddr_t base_addr[6]; /* Base addresses */
138 pciaddr_t size[6]; /* Region sizes */
139 pciaddr_t rom_base_addr; /* Expansion ROM base address */
140 pciaddr_t rom_size; /* Expansion ROM size */
142 /* Fields used internally: */
143 struct pci_access *access;
144 struct pci_methods *methods;
145 byte *cache; /* Cached information */
147 int hdrtype; /* Direct methods: header type */
148 void *aux; /* Auxillary data */
151 #define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
152 #define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
154 byte pci_read_byte(struct pci_dev *, int pos); /* Access to configuration space */
155 word pci_read_word(struct pci_dev *, int pos);
156 u32 pci_read_long(struct pci_dev *, int pos);
157 int pci_read_block(struct pci_dev *, int pos, byte *buf, int len);
158 int pci_write_byte(struct pci_dev *, int pos, byte data);
159 int pci_write_word(struct pci_dev *, int pos, word data);
160 int pci_write_long(struct pci_dev *, int pos, u32 data);
161 int pci_write_block(struct pci_dev *, int pos, byte *buf, int len);
163 int pci_fill_info(struct pci_dev *, int flags); /* Fill in device information */
165 #define PCI_FILL_IDENT 1
166 #define PCI_FILL_IRQ 2
167 #define PCI_FILL_BASES 4
168 #define PCI_FILL_ROM_BASE 8
169 #define PCI_FILL_SIZES 16
170 #define PCI_FILL_RESCAN 0x10000
172 void pci_setup_cache(struct pci_dev *, byte *cache, int len);
179 int bus, slot, func; /* -1 = ANY */
183 void pci_filter_init(struct pci_access *, struct pci_filter *);
184 char *pci_filter_parse_slot(struct pci_filter *, char *);
185 char *pci_filter_parse_id(struct pci_filter *, char *);
186 int pci_filter_match(struct pci_filter *, struct pci_dev *);
192 char *pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
193 void pci_free_name_list(struct pci_access *a);
195 #define PCI_LOOKUP_VENDOR 1
196 #define PCI_LOOKUP_DEVICE 2
197 #define PCI_LOOKUP_CLASS 4
198 #define PCI_LOOKUP_SUBSYSTEM 8
199 #define PCI_LOOKUP_PROGIF 16
200 #define PCI_LOOKUP_NUMERIC 0x10000