4 * Copyright (c) 1997--2003 Martin Mares <mj@ucw.cz>
6 * Can be freely distributed and used under the terms of the GNU GPL.
16 * Types and format strings
19 #include <sys/types.h>
21 typedef u_int8_t byte;
23 typedef u_int16_t word;
24 typedef u_int16_t u16;
25 typedef u_int32_t u32;
27 #ifdef HAVE_64BIT_ADDRESS
29 #if ULONG_MAX > 0xffffffff
30 typedef unsigned long u64;
31 #define PCIADDR_T_FMT "%016lx"
32 #define PCIADDR_PORT_FMT "%04lx"
34 typedef unsigned long long u64;
35 #define PCIADDR_T_FMT "%016llx"
36 #define PCIADDR_PORT_FMT "%04llx"
38 typedef u64 pciaddr_t;
40 typedef u32 pciaddr_t;
41 #define PCIADDR_T_FMT "%08x"
42 #define PCIADDR_PORT_FMT "%04x"
46 /* On sparc64 Linux the kernel reports remapped port addresses and IRQ numbers */
47 #undef PCIADDR_PORT_FMT
48 #define PCIADDR_PORT_FMT PCIADDR_T_FMT
49 #define PCIIRQ_FMT "%08x"
51 #define PCIIRQ_FMT "%d"
55 * PCI Access Structure
61 enum pci_access_type {
62 /* Known access methods, remember to update access.c as well */
63 PCI_ACCESS_AUTO, /* Autodetection (params: none) */
64 PCI_ACCESS_SYS_BUS_PCI, /* Linux /sys/bus/pci (params: path) */
65 PCI_ACCESS_PROC_BUS_PCI, /* Linux /proc/bus/pci (params: path) */
66 PCI_ACCESS_I386_TYPE1, /* i386 ports, type 1 (params: none) */
67 PCI_ACCESS_I386_TYPE2, /* i386 ports, type 2 (params: none) */
68 PCI_ACCESS_FBSD_DEVICE, /* FreeBSD /dev/pci (params: path) */
69 PCI_ACCESS_AIX_DEVICE, /* /dev/pci0, /dev/bus0, etc. */
70 PCI_ACCESS_NBSD_LIBPCI, /* NetBSD libpci */
71 PCI_ACCESS_DUMP, /* Dump file (params: filename) */
76 /* Options you can change: */
77 unsigned int method; /* Access method */
78 char *method_params[PCI_ACCESS_MAX]; /* Parameters for the methods */
79 int writeable; /* Open in read/write mode */
80 int buscentric; /* Bus-centric view of the world */
81 char *id_file_name; /* Name of ID list file */
82 int numeric_ids; /* Don't resolve device IDs to names */
83 int debugging; /* Turn on debugging messages */
85 /* Functions you can override: */
86 void (*error)(char *msg, ...); /* Write error message and quit */
87 void (*warning)(char *msg, ...); /* Write a warning message */
88 void (*debug)(char *msg, ...); /* Write a debugging message */
90 struct pci_dev *devices; /* Devices found on this bus */
92 /* Fields used internally: */
93 struct pci_methods *methods;
94 char *nl_list; /* Name list cache */
95 struct nl_entry **nl_hash;
96 int fd; /* proc: fd */
97 int fd_rw; /* proc: fd opened read-write */
98 struct pci_dev *cached_dev; /* proc: device the fd is for */
99 int fd_pos; /* proc: current position */
102 /* Initialize PCI access */
103 struct pci_access *pci_alloc(void);
104 void pci_init(struct pci_access *);
105 void pci_cleanup(struct pci_access *);
107 /* Scanning of devices */
108 void pci_scan_bus(struct pci_access *acc);
109 struct pci_dev *pci_get_dev(struct pci_access *acc, int domain, int bus, int dev, int func); /* Raw access to specified device */
110 void pci_free_dev(struct pci_dev *);
117 struct pci_dev *next; /* Next device in the chain */
118 u16 domain; /* PCI domain (host bridge) */
119 byte bus, dev, func; /* Bus inside domain, device and function */
121 /* These fields are set by pci_fill_info() */
122 int known_fields; /* Set of info fields already known */
123 word vendor_id, device_id; /* Identity of the device */
124 int irq; /* IRQ number */
125 pciaddr_t base_addr[6]; /* Base addresses */
126 pciaddr_t size[6]; /* Region sizes */
127 pciaddr_t rom_base_addr; /* Expansion ROM base address */
128 pciaddr_t rom_size; /* Expansion ROM size */
130 /* Fields used internally: */
131 struct pci_access *access;
132 struct pci_methods *methods;
133 byte *cache; /* Cached config registers */
135 int hdrtype; /* Cached header type, -1 if unknown */
136 void *aux; /* Auxillary data */
139 #define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
140 #define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
142 byte pci_read_byte(struct pci_dev *, int pos); /* Access to configuration space */
143 word pci_read_word(struct pci_dev *, int pos);
144 u32 pci_read_long(struct pci_dev *, int pos);
145 int pci_read_block(struct pci_dev *, int pos, byte *buf, int len);
146 int pci_write_byte(struct pci_dev *, int pos, byte data);
147 int pci_write_word(struct pci_dev *, int pos, word data);
148 int pci_write_long(struct pci_dev *, int pos, u32 data);
149 int pci_write_block(struct pci_dev *, int pos, byte *buf, int len);
151 int pci_fill_info(struct pci_dev *, int flags); /* Fill in device information */
153 #define PCI_FILL_IDENT 1
154 #define PCI_FILL_IRQ 2
155 #define PCI_FILL_BASES 4
156 #define PCI_FILL_ROM_BASE 8
157 #define PCI_FILL_SIZES 16
158 #define PCI_FILL_RESCAN 0x10000
160 void pci_setup_cache(struct pci_dev *, byte *cache, int len);
167 int domain, bus, slot, func; /* -1 = ANY */
171 void pci_filter_init(struct pci_access *, struct pci_filter *);
172 char *pci_filter_parse_slot(struct pci_filter *, char *);
173 char *pci_filter_parse_id(struct pci_filter *, char *);
174 int pci_filter_match(struct pci_filter *, struct pci_dev *);
180 char *pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
181 void pci_free_name_list(struct pci_access *a);
183 #define PCI_LOOKUP_VENDOR 1
184 #define PCI_LOOKUP_DEVICE 2
185 #define PCI_LOOKUP_CLASS 4
186 #define PCI_LOOKUP_SUBSYSTEM 8
187 #define PCI_LOOKUP_PROGIF 16
188 #define PCI_LOOKUP_NUMERIC 0x10000