[thirdparty/pciutils.git] / lib / pci.h

/*
 *	The PCI Library
 *
 *	Copyright (c) 1997--2018 Martin Mares <mj@ucw.cz>
 *
 *	Can be freely distributed and used under the terms of the GNU GPL.
 */

#ifndef _PCI_LIB_H
#define _PCI_LIB_H

#ifndef PCI_CONFIG_H
#include "config.h"
#endif

#include "header.h"
#include "types.h"

#define PCI_LIB_VERSION 0x030506

#ifndef PCI_ABI
#define PCI_ABI
#endif

/*
 *	PCI Access Structure
 */

struct pci_methods;

enum pci_access_type {
  /* Known access methods, remember to update init.c as well */
  PCI_ACCESS_AUTO,			/* Autodetection */
  PCI_ACCESS_SYS_BUS_PCI,		/* Linux /sys/bus/pci */
  PCI_ACCESS_PROC_BUS_PCI,		/* Linux /proc/bus/pci */
  PCI_ACCESS_I386_TYPE1,		/* i386 ports, type 1 */
  PCI_ACCESS_I386_TYPE2,		/* i386 ports, type 2 */
  PCI_ACCESS_FBSD_DEVICE,		/* FreeBSD /dev/pci */
  PCI_ACCESS_AIX_DEVICE,		/* /dev/pci0, /dev/bus0, etc. */
  PCI_ACCESS_NBSD_LIBPCI,		/* NetBSD libpci */
  PCI_ACCESS_OBSD_DEVICE,		/* OpenBSD /dev/pci */
  PCI_ACCESS_DUMP,			/* Dump file */
  PCI_ACCESS_DARWIN,			/* Darwin */
  PCI_ACCESS_SYLIXOS_DEVICE,   /* SylixOS pci */
  PCI_ACCESS_MAX
};

struct pci_access {
  /* Options you can change: */
  unsigned int method;			/* Access method */
  int writeable;			/* Open in read/write mode */
  int buscentric;			/* Bus-centric view of the world */

  char *id_file_name;			/* Name of ID list file (use pci_set_name_list_path()) */
  int free_id_name;			/* Set if id_file_name is malloced */
  int numeric_ids;			/* Enforce PCI_LOOKUP_NUMERIC (>1 => PCI_LOOKUP_MIXED) */

  unsigned int id_lookup_mode;		/* pci_lookup_mode flags which are set automatically */
					/* Default: PCI_LOOKUP_CACHE */

  int debugging;			/* Turn on debugging messages */

  /* Functions you can override: */
  void (*error)(char *msg, ...) PCI_PRINTF(1,2);	/* Write error message and quit */
  void (*warning)(char *msg, ...) PCI_PRINTF(1,2);	/* Write a warning message */
  void (*debug)(char *msg, ...) PCI_PRINTF(1,2);	/* Write a debugging message */

  struct pci_dev *devices;		/* Devices found on this bus */

  /* Fields used internally: */
  struct pci_methods *methods;
  struct pci_param *params;
  struct id_entry **id_hash;		/* names.c */
  struct id_bucket *current_id_bucket;
  int id_load_failed;
  int id_cache_status;			/* 0=not read, 1=read, 2=dirty */
  struct udev *id_udev;			/* names-hwdb.c */
  struct udev_hwdb *id_udev_hwdb;
  int fd;				/* proc/sys: fd for config space */
  int fd_rw;				/* proc/sys: fd opened read-write */
  int fd_pos;				/* proc/sys: current position */
  int fd_vpd;				/* sys: fd for VPD */
  struct pci_dev *cached_dev;		/* proc/sys: device the fds are for */
};

/* Initialize PCI access */
struct pci_access *pci_alloc(void) PCI_ABI;
void pci_init(struct pci_access *) PCI_ABI;
void pci_cleanup(struct pci_access *) PCI_ABI;

/* Scanning of devices */
void pci_scan_bus(struct pci_access *acc) PCI_ABI;
struct pci_dev *pci_get_dev(struct pci_access *acc, int domain, int bus, int dev, int func) PCI_ABI; /* Raw access to specified device */
void pci_free_dev(struct pci_dev *) PCI_ABI;

/* Names of access methods */
int pci_lookup_method(char *name) PCI_ABI;	/* Returns -1 if not found */
char *pci_get_method_name(int index) PCI_ABI;	/* Returns "" if unavailable, NULL if index out of range */

/*
 *	Named parameters
 */

struct pci_param {
  struct pci_param *next;		/* Please use pci_walk_params() for traversing the list */
  char *param;				/* Name of the parameter */
  char *value;				/* Value of the parameter */
  int value_malloced;			/* used internally */
  char *help;				/* Explanation of the parameter */
};

char *pci_get_param(struct pci_access *acc, char *param) PCI_ABI;
int pci_set_param(struct pci_access *acc, char *param, char *value) PCI_ABI;	/* 0 on success, -1 if no such parameter */
/* To traverse the list, call pci_walk_params repeatedly, first with prev=NULL, and do not modify the parameters during traversal. */
struct pci_param *pci_walk_params(struct pci_access *acc, struct pci_param *prev) PCI_ABI;

/*
 *	Devices
 */

struct pci_dev {
  struct pci_dev *next;			/* Next device in the chain */
  u16 domain_16;			/* 16-bit version of the PCI domain for backward compatibility */
					/* 0xffff if the real domain doesn't fit in 16 bits */
  u8 bus, dev, func;			/* Bus inside domain, device and function */

  /* These fields are set by pci_fill_info() */
  int known_fields;			/* Set of info fields already known */
  u16 vendor_id, device_id;		/* Identity of the device */
  u16 device_class;			/* PCI device class */
  int irq;				/* IRQ number */
  pciaddr_t base_addr[6];		/* Base addresses including flags in lower bits */
  pciaddr_t size[6];			/* Region sizes */
  pciaddr_t rom_base_addr;		/* Expansion ROM base address */
  pciaddr_t rom_size;			/* Expansion ROM size */
  struct pci_cap *first_cap;		/* List of capabilities */
  char *phy_slot;			/* Physical slot */
  char *module_alias;			/* Linux kernel module alias */
  char *label;				/* Device name as exported by BIOS */
  int numa_node;			/* NUMA node */
  pciaddr_t flags[6];			/* PCI_IORESOURCE_* flags for regions */
  pciaddr_t rom_flags;			/* PCI_IORESOURCE_* flags for expansion ROM */
  int domain;				/* PCI domain (host bridge) */

  /* Fields used internally */
  struct pci_access *access;
  struct pci_methods *methods;
  u8 *cache;				/* Cached config registers */
  int cache_len;
  int hdrtype;				/* Cached low 7 bits of header type, -1 if unknown */
  void *aux;				/* Auxiliary data */
  struct pci_property *properties;	/* A linked list of extra properties */
};

#define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
#define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
#define PCI_ADDR_FLAG_MASK 0xf

u8 pci_read_byte(struct pci_dev *, int pos) PCI_ABI; /* Access to configuration space */
u16 pci_read_word(struct pci_dev *, int pos) PCI_ABI;
u32 pci_read_long(struct pci_dev *, int pos) PCI_ABI;
int pci_read_block(struct pci_dev *, int pos, u8 *buf, int len) PCI_ABI;
int pci_read_vpd(struct pci_dev *d, int pos, u8 *buf, int len) PCI_ABI;
int pci_write_byte(struct pci_dev *, int pos, u8 data) PCI_ABI;
int pci_write_word(struct pci_dev *, int pos, u16 data) PCI_ABI;
int pci_write_long(struct pci_dev *, int pos, u32 data) PCI_ABI;
int pci_write_block(struct pci_dev *, int pos, u8 *buf, int len) PCI_ABI;

/*
 * Most device properties take some effort to obtain, so libpci does not
 * initialize them during default bus scan. Instead, you have to call
 * pci_fill_info() with the proper PCI_FILL_xxx constants OR'ed together.
 *
 * Some properties are stored directly in the pci_dev structure.
 * The remaining ones can be accessed through pci_get_string_property().
 */

int pci_fill_info(struct pci_dev *, int flags) PCI_ABI;
char *pci_get_string_property(struct pci_dev *d, u32 prop) PCI_ABI;

#define PCI_FILL_IDENT		0x0001
#define PCI_FILL_IRQ		0x0002
#define PCI_FILL_BASES		0x0004
#define PCI_FILL_ROM_BASE	0x0008
#define PCI_FILL_SIZES		0x0010
#define PCI_FILL_CLASS		0x0020
#define PCI_FILL_CAPS		0x0040
#define PCI_FILL_EXT_CAPS	0x0080
#define PCI_FILL_PHYS_SLOT	0x0100
#define PCI_FILL_MODULE_ALIAS	0x0200
#define PCI_FILL_LABEL		0x0400
#define PCI_FILL_NUMA_NODE	0x0800
#define PCI_FILL_IO_FLAGS	0x1000
#define PCI_FILL_DT_NODE	0x2000		/* Device tree node */
#define PCI_FILL_RESCAN		0x00010000

void pci_setup_cache(struct pci_dev *, u8 *cache, int len) PCI_ABI;

/*
 *	Capabilities
 */

struct pci_cap {
  struct pci_cap *next;
  u16 id;				/* PCI_CAP_ID_xxx */
  u16 type;				/* PCI_CAP_xxx */
  unsigned int addr;			/* Position in the config space */
};

#define PCI_CAP_NORMAL		1	/* Traditional PCI capabilities */
#define PCI_CAP_EXTENDED	2	/* PCIe extended capabilities */

struct pci_cap *pci_find_cap(struct pci_dev *, unsigned int id, unsigned int type) PCI_ABI;

/*
 *	Filters
 */

struct pci_filter {
  int domain, bus, slot, func;			/* -1 = ANY */
  int vendor, device, device_class;
  int rfu[3];
};

void pci_filter_init(struct pci_access *, struct pci_filter *) PCI_ABI;
char *pci_filter_parse_slot(struct pci_filter *, char *) PCI_ABI;
char *pci_filter_parse_id(struct pci_filter *, char *) PCI_ABI;
int pci_filter_match(struct pci_filter *, struct pci_dev *) PCI_ABI;

/*
 *	Conversion of PCI ID's to names (according to the pci.ids file)
 *
 *	Call pci_lookup_name() to identify different types of ID's:
 *
 *	VENDOR				(vendorID) -> vendor
 *	DEVICE				(vendorID, deviceID) -> device
 *	VENDOR | DEVICE			(vendorID, deviceID) -> combined vendor and device
 *	SUBSYSTEM | VENDOR		(subvendorID) -> subsystem vendor
 *	SUBSYSTEM | DEVICE		(vendorID, deviceID, subvendorID, subdevID) -> subsystem device
 *	SUBSYSTEM | VENDOR | DEVICE	(vendorID, deviceID, subvendorID, subdevID) -> combined subsystem v+d
 *	SUBSYSTEM | ...			(-1, -1, subvendorID, subdevID) -> generic subsystem
 *	CLASS				(classID) -> class
 *	PROGIF				(classID, progif) -> programming interface
 */

char *pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, ...) PCI_ABI;

int pci_load_name_list(struct pci_access *a) PCI_ABI;	/* Called automatically by pci_lookup_*() when needed; returns success */
void pci_free_name_list(struct pci_access *a) PCI_ABI;	/* Called automatically by pci_cleanup() */
void pci_set_name_list_path(struct pci_access *a, char *name, int to_be_freed) PCI_ABI;
void pci_id_cache_flush(struct pci_access *a) PCI_ABI;

enum pci_lookup_mode {
  PCI_LOOKUP_VENDOR = 1,		/* Vendor name (args: vendorID) */
  PCI_LOOKUP_DEVICE = 2,		/* Device name (args: vendorID, deviceID) */
  PCI_LOOKUP_CLASS = 4,			/* Device class (args: classID) */
  PCI_LOOKUP_SUBSYSTEM = 8,
  PCI_LOOKUP_PROGIF = 16,		/* Programming interface (args: classID, prog_if) */
  PCI_LOOKUP_NUMERIC = 0x10000,		/* Want only formatted numbers; default if access->numeric_ids is set */
  PCI_LOOKUP_NO_NUMBERS = 0x20000,	/* Return NULL if not found in the database; default is to print numerically */
  PCI_LOOKUP_MIXED = 0x40000,		/* Include both numbers and names */
  PCI_LOOKUP_NETWORK = 0x80000,		/* Try to resolve unknown ID's by DNS */
  PCI_LOOKUP_SKIP_LOCAL = 0x100000,	/* Do not consult local database */
  PCI_LOOKUP_CACHE = 0x200000,		/* Consult the local cache before using DNS */
  PCI_LOOKUP_REFRESH_CACHE = 0x400000,	/* Forget all previously cached entries, but still allow updating the cache */
  PCI_LOOKUP_NO_HWDB = 0x800000,	/* Do not ask udev's hwdb */
};

#endif
Commit	Line	Data
727ce158	1	/*
727ce158 MM	2	* The PCI Library
727ce158 MM	3	*
c02d903c	4	* Copyright (c) 1997--2018 Martin Mares <mj@ucw.cz>
727ce158 MM	5	*
	6	* Can be freely distributed and used under the terms of the GNU GPL.
	7	*/
	8
	9	#ifndef _PCI_LIB_H
	10	#define _PCI_LIB_H
	11
59a0211a	12	#ifndef PCI_CONFIG_H
727ce158	13	#include "config.h"
59a0211a MM	14	#endif
59a0211a MM	15
727ce158	16	#include "header.h"
489233b4	17	#include "types.h"
f3395cc5	18
4092c885	19	#define PCI_LIB_VERSION 0x030506
043ebdee	20
2f421184 MM	21	#ifndef PCI_ABI
	22	#define PCI_ABI
	23	#endif
	24
727ce158 MM	25	/*
	26	* PCI Access Structure
	27	*/
	28
	29	struct pci_methods;
727ce158	30
d772ef15	31	enum pci_access_type {
59cfe93d	32	/* Known access methods, remember to update init.c as well */
cb6ee324 MM	33	PCI_ACCESS_AUTO, /* Autodetection */
	34	PCI_ACCESS_SYS_BUS_PCI, /* Linux /sys/bus/pci */
	35	PCI_ACCESS_PROC_BUS_PCI, /* Linux /proc/bus/pci */
	36	PCI_ACCESS_I386_TYPE1, /* i386 ports, type 1 */
	37	PCI_ACCESS_I386_TYPE2, /* i386 ports, type 2 */
	38	PCI_ACCESS_FBSD_DEVICE, /* FreeBSD /dev/pci */
d772ef15 MM	39	PCI_ACCESS_AIX_DEVICE, /* /dev/pci0, /dev/bus0, etc. */
d772ef15 MM	40	PCI_ACCESS_NBSD_LIBPCI, /* NetBSD libpci */
b6359063	41	PCI_ACCESS_OBSD_DEVICE, /* OpenBSD /dev/pci */
5bdd27f6	42	PCI_ACCESS_DUMP, /* Dump file */
7cb1afbe	43	PCI_ACCESS_DARWIN, /* Darwin */
83fd885b	44	PCI_ACCESS_SYLIXOS_DEVICE, /* SylixOS pci */
d772ef15 MM	45	PCI_ACCESS_MAX
d772ef15 MM	46	};
727ce158 MM	47
	48	struct pci_access {
	49	/* Options you can change: */
	50	unsigned int method; /* Access method */
727ce158 MM	51	int writeable; /* Open in read/write mode */
727ce158 MM	52	int buscentric; /* Bus-centric view of the world */
103f074c MM	53
103f074c MM	54	char id_file_name; / Name of ID list file (use pci_set_name_list_path()) */
cc062b4a	55	int free_id_name; /* Set if id_file_name is malloced */
bc2eed2d	56	int numeric_ids; /* Enforce PCI_LOOKUP_NUMERIC (>1 => PCI_LOOKUP_MIXED) */
103f074c MM	57
103f074c MM	58	unsigned int id_lookup_mode; /* pci_lookup_mode flags which are set automatically */
98ccf6d6	59	/* Default: PCI_LOOKUP_CACHE */
103f074c	60
727ce158 MM	61	int debugging; /* Turn on debugging messages */
	62
	63	/* Functions you can override: */
4f6b38ca MM	64	void (error)(char msg, ...) PCI_PRINTF(1,2); /* Write error message and quit */
	65	void (warning)(char msg, ...) PCI_PRINTF(1,2); /* Write a warning message */
	66	void (debug)(char msg, ...) PCI_PRINTF(1,2); /* Write a debugging message */
727ce158 MM	67
	68	struct pci_dev devices; / Devices found on this bus */
	69
	70	/* Fields used internally: */
	71	struct pci_methods *methods;
fa182368	72	struct pci_param *params;
aeaca5d3 MM	73	struct id_entry *id_hash; / names.c */
aeaca5d3 MM	74	struct id_bucket *current_id_bucket;
103f074c MM	75	int id_load_failed;
103f074c MM	76	int id_cache_status; /* 0=not read, 1=read, 2=dirty */
ac357d3b MM	77	struct udev id_udev; / names-hwdb.c */
ac357d3b MM	78	struct udev_hwdb *id_udev_hwdb;
9bd5b1cf BH	79	int fd; /* proc/sys: fd for config space */
	80	int fd_rw; /* proc/sys: fd opened read-write */
	81	int fd_pos; /* proc/sys: current position */
	82	int fd_vpd; /* sys: fd for VPD */
	83	struct pci_dev cached_dev; / proc/sys: device the fds are for */
727ce158 MM	84	};
	85
	86	/* Initialize PCI access */
2f421184 MM	87	struct pci_access *pci_alloc(void) PCI_ABI;
	88	void pci_init(struct pci_access *) PCI_ABI;
	89	void pci_cleanup(struct pci_access *) PCI_ABI;
727ce158 MM	90
727ce158 MM	91	/* Scanning of devices */
2f421184 MM	92	void pci_scan_bus(struct pci_access *acc) PCI_ABI;
	93	struct pci_dev pci_get_dev(struct pci_access acc, int domain, int bus, int dev, int func) PCI_ABI; /* Raw access to specified device */
	94	void pci_free_dev(struct pci_dev *) PCI_ABI;
727ce158	95
9ff67879	96	/* Names of access methods */
2f421184 MM	97	int pci_lookup_method(char name) PCI_ABI; / Returns -1 if not found */
2f421184 MM	98	char pci_get_method_name(int index) PCI_ABI; / Returns "" if unavailable, NULL if index out of range */
9ff67879	99
fa182368 MM	100	/*
	101	* Named parameters
	102	*/
	103
	104	struct pci_param {
	105	struct pci_param next; / Please use pci_walk_params() for traversing the list */
	106	char param; / Name of the parameter */
	107	char value; / Value of the parameter */
	108	int value_malloced; /* used internally */
0f24ef6f	109	char help; / Explanation of the parameter */
fa182368 MM	110	};
fa182368 MM	111
2f421184 MM	112	char pci_get_param(struct pci_access acc, char *param) PCI_ABI;
2f421184 MM	113	int pci_set_param(struct pci_access acc, char param, char value) PCI_ABI; / 0 on success, -1 if no such parameter */
fa182368	114	/* To traverse the list, call pci_walk_params repeatedly, first with prev=NULL, and do not modify the parameters during traversal. */
2f421184	115	struct pci_param pci_walk_params(struct pci_access acc, struct pci_param *prev) PCI_ABI;
fa182368	116
727ce158 MM	117	/*
	118	* Devices
	119	*/
	120
	121	struct pci_dev {
	122	struct pci_dev next; / Next device in the chain */
4186391b MM	123	u16 domain_16; /* 16-bit version of the PCI domain for backward compatibility */
4186391b MM	124	/* 0xffff if the real domain doesn't fit in 16 bits */
f31412d1	125	u8 bus, dev, func; /* Bus inside domain, device and function */
727ce158 MM	126
727ce158 MM	127	/* These fields are set by pci_fill_info() */
e95c8373	128	int known_fields; /* Set of info fields already known */
f31412d1	129	u16 vendor_id, device_id; /* Identity of the device */
c2b144ef	130	u16 device_class; /* PCI device class */
727ce158	131	int irq; /* IRQ number */
f3d91991	132	pciaddr_t base_addr[6]; /* Base addresses including flags in lower bits */
e95c8373	133	pciaddr_t size[6]; /* Region sizes */
f3395cc5	134	pciaddr_t rom_base_addr; /* Expansion ROM base address */
e95c8373	135	pciaddr_t rom_size; /* Expansion ROM size */
89c51b98	136	struct pci_cap first_cap; / List of capabilities */
2849a165	137	char phy_slot; / Physical slot */
b1861a8d	138	char module_alias; / Linux kernel module alias */
aecf5b35	139	char label; / Device name as exported by BIOS */
7ef7f3ec	140	int numa_node; /* NUMA node */
3d0a6d88 MM	141	pciaddr_t flags[6]; /* PCI_IORESOURCE_* flags for regions */
3d0a6d88 MM	142	pciaddr_t rom_flags; /* PCI_IORESOURCE_* flags for expansion ROM */
4186391b	143	int domain; /* PCI domain (host bridge) */
727ce158	144
c02d903c	145	/* Fields used internally */
727ce158 MM	146	struct pci_access *access;
727ce158 MM	147	struct pci_methods *methods;
f31412d1	148	u8 cache; / Cached config registers */
3430bafe	149	int cache_len;
6aa54f1b	150	int hdrtype; /* Cached low 7 bits of header type, -1 if unknown */
d9b1b8e3	151	void aux; / Auxiliary data */
c02d903c	152	struct pci_property properties; / A linked list of extra properties */
727ce158 MM	153	};
727ce158 MM	154
f3395cc5 MM	155	#define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
f3395cc5 MM	156	#define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
6d143c32	157	#define PCI_ADDR_FLAG_MASK 0xf
f3395cc5	158
2f421184 MM	159	u8 pci_read_byte(struct pci_dev , int pos) PCI_ABI; / Access to configuration space */
	160	u16 pci_read_word(struct pci_dev *, int pos) PCI_ABI;
	161	u32 pci_read_long(struct pci_dev *, int pos) PCI_ABI;
	162	int pci_read_block(struct pci_dev , int pos, u8 buf, int len) PCI_ABI;
52c81519	163	int pci_read_vpd(struct pci_dev d, int pos, u8 buf, int len) PCI_ABI;
2f421184 MM	164	int pci_write_byte(struct pci_dev *, int pos, u8 data) PCI_ABI;
	165	int pci_write_word(struct pci_dev *, int pos, u16 data) PCI_ABI;
	166	int pci_write_long(struct pci_dev *, int pos, u32 data) PCI_ABI;
	167	int pci_write_block(struct pci_dev , int pos, u8 buf, int len) PCI_ABI;
727ce158	168
c02d903c MM	169	/*
	170	* Most device properties take some effort to obtain, so libpci does not
	171	* initialize them during default bus scan. Instead, you have to call
	172	* pci_fill_info() with the proper PCI_FILL_xxx constants OR'ed together.
	173	*
	174	* Some properties are stored directly in the pci_dev structure.
	175	* The remaining ones can be accessed through pci_get_string_property().
	176	*/
	177
	178	int pci_fill_info(struct pci_dev *, int flags) PCI_ABI;
	179	char pci_get_string_property(struct pci_dev d, u32 prop) PCI_ABI;
727ce158	180
7ef7f3ec MM	181	#define PCI_FILL_IDENT 0x0001
	182	#define PCI_FILL_IRQ 0x0002
	183	#define PCI_FILL_BASES 0x0004
	184	#define PCI_FILL_ROM_BASE 0x0008
	185	#define PCI_FILL_SIZES 0x0010
	186	#define PCI_FILL_CLASS 0x0020
	187	#define PCI_FILL_CAPS 0x0040
	188	#define PCI_FILL_EXT_CAPS 0x0080
	189	#define PCI_FILL_PHYS_SLOT 0x0100
	190	#define PCI_FILL_MODULE_ALIAS 0x0200
	191	#define PCI_FILL_LABEL 0x0400
	192	#define PCI_FILL_NUMA_NODE 0x0800
558f736b	193	#define PCI_FILL_IO_FLAGS 0x1000
c02d903c	194	#define PCI_FILL_DT_NODE 0x2000 /* Device tree node */
7ef7f3ec	195	#define PCI_FILL_RESCAN 0x00010000
727ce158	196
2f421184	197	void pci_setup_cache(struct pci_dev , u8 cache, int len) PCI_ABI;
727ce158	198
6d5e39ac MM	199	/*
	200	* Capabilities
	201	*/
	202
	203	struct pci_cap {
	204	struct pci_cap *next;
	205	u16 id; /* PCI_CAP_ID_xxx */
	206	u16 type; /* PCI_CAP_xxx */
	207	unsigned int addr; /* Position in the config space */
	208	};
	209
7831d7f9 MM	210	#define PCI_CAP_NORMAL 1 /* Traditional PCI capabilities */
7831d7f9 MM	211	#define PCI_CAP_EXTENDED 2 /* PCIe extended capabilities */
6d5e39ac MM	212
	213	struct pci_cap pci_find_cap(struct pci_dev , unsigned int id, unsigned int type) PCI_ABI;
	214
727ce158 MM	215	/*
	216	* Filters
	217	*/
	218
	219	struct pci_filter {
84c8d1bb	220	int domain, bus, slot, func; /* -1 = ANY */
52aecc75 MM	221	int vendor, device, device_class;
52aecc75 MM	222	int rfu[3];
727ce158 MM	223	};
727ce158 MM	224
2f421184 MM	225	void pci_filter_init(struct pci_access , struct pci_filter ) PCI_ABI;
	226	char pci_filter_parse_slot(struct pci_filter , char *) PCI_ABI;
	227	char pci_filter_parse_id(struct pci_filter , char *) PCI_ABI;
	228	int pci_filter_match(struct pci_filter , struct pci_dev ) PCI_ABI;
727ce158 MM	229
727ce158 MM	230	/*
aeaca5d3 MM	231	* Conversion of PCI ID's to names (according to the pci.ids file)
	232	*
	233	* Call pci_lookup_name() to identify different types of ID's:
	234	*
	235	* VENDOR (vendorID) -> vendor
	236	* DEVICE (vendorID, deviceID) -> device
	237	* VENDOR \| DEVICE (vendorID, deviceID) -> combined vendor and device
	238	* SUBSYSTEM \| VENDOR (subvendorID) -> subsystem vendor
	239	* SUBSYSTEM \| DEVICE (vendorID, deviceID, subvendorID, subdevID) -> subsystem device
	240	* SUBSYSTEM \| VENDOR \| DEVICE (vendorID, deviceID, subvendorID, subdevID) -> combined subsystem v+d
	241	* SUBSYSTEM \| ... (-1, -1, subvendorID, subdevID) -> generic subsystem
	242	* CLASS (classID) -> class
	243	* PROGIF (classID, progif) -> programming interface
727ce158 MM	244	*/
727ce158 MM	245
2f421184	246	char pci_lookup_name(struct pci_access a, char *buf, int size, int flags, ...) PCI_ABI;
727ce158	247
2f421184 MM	248	int pci_load_name_list(struct pci_access a) PCI_ABI; / Called automatically by pci_lookup_() when needed; returns success /
	249	void pci_free_name_list(struct pci_access a) PCI_ABI; / Called automatically by pci_cleanup() */
	250	void pci_set_name_list_path(struct pci_access a, char name, int to_be_freed) PCI_ABI;
	251	void pci_id_cache_flush(struct pci_access *a) PCI_ABI;
aeaca5d3 MM	252
	253	enum pci_lookup_mode {
	254	PCI_LOOKUP_VENDOR = 1, /* Vendor name (args: vendorID) */
	255	PCI_LOOKUP_DEVICE = 2, /* Device name (args: vendorID, deviceID) */
	256	PCI_LOOKUP_CLASS = 4, /* Device class (args: classID) */
	257	PCI_LOOKUP_SUBSYSTEM = 8,
	258	PCI_LOOKUP_PROGIF = 16, /* Programming interface (args: classID, prog_if) */
	259	PCI_LOOKUP_NUMERIC = 0x10000, /* Want only formatted numbers; default if access->numeric_ids is set */
bc2eed2d MM	260	PCI_LOOKUP_NO_NUMBERS = 0x20000, /* Return NULL if not found in the database; default is to print numerically */
bc2eed2d MM	261	PCI_LOOKUP_MIXED = 0x40000, /* Include both numbers and names */
103f074c MM	262	PCI_LOOKUP_NETWORK = 0x80000, /* Try to resolve unknown ID's by DNS */
	263	PCI_LOOKUP_SKIP_LOCAL = 0x100000, /* Do not consult local database */
	264	PCI_LOOKUP_CACHE = 0x200000, /* Consult the local cache before using DNS */
	265	PCI_LOOKUP_REFRESH_CACHE = 0x400000, /* Forget all previously cached entries, but still allow updating the cache */
ac357d3b	266	PCI_LOOKUP_NO_HWDB = 0x800000, /* Do not ask udev's hwdb */
aeaca5d3	267	};
727ce158 MM	268
727ce158 MM	269	#endif