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Rev	Author	Line No.	Line
4300	trochtova	1	/*
		2	* The PCI Library
		3	*
		4	* Copyright (c) 1997--2005 Martin Mares <mj@ucw.cz>
		5	*
		6	* May 8, 2006 - Modified and ported to HelenOS by Jakub Jermar.
		7	*
		8	* Can be freely distributed and used under the terms of the GNU GPL.
		9	*/
		10
		11	#ifndef _PCI_LIB_H
		12	#define _PCI_LIB_H
		13
		14	#include "header.h"
		15	#include "types.h"
		16
		17	#define PCI_LIB_VERSION 0x020200
		18
		19	/*
		20	* PCI Access Structure
		21	*/
		22
		23	struct pci_methods;
		24
		25	enum pci_access_type {
		26	/* Known access methods, remember to update access.c as well */
		27	PCI_ACCESS_I386_TYPE1, /* i386 ports, type 1 (params: none) */
		28	PCI_ACCESS_I386_TYPE2, /* i386 ports, type 2 (params: none) */
		29	PCI_ACCESS_US2,
		30	PCI_ACCESS_MAX
		31	};
		32
		33	struct pci_access {
		34	/* Options you can change: */
		35	unsigned int method; /* Access method */
		36	char method_params[PCI_ACCESS_MAX]; / Parameters for the methods */
		37	int writeable; /* Open in read/write mode */
		38	int buscentric; /* Bus-centric view of the world */
		39	int numeric_ids; /* Don't resolve device IDs to names */
		40	int debugging; /* Turn on debugging messages */
		41
		42	/* Functions you can override: */
		43	void (error) (char msg, ...); /* Write error message and quit */
		44	void (warning) (char msg, ...); /* Write a warning message */
		45	void (debug) (char msg, ...); /* Write a debugging message */
		46
		47	struct pci_dev devices; / Devices found on this bus */
		48
		49	/* Fields used internally: */
		50	struct pci_methods *methods;
		51	struct id_entry *id_hash; / names.c */
		52	struct id_bucket *current_id_bucket;
		53	};
		54
		55	/* Initialize PCI access */
		56	struct pci_access *pci_alloc(void);
		57	void pci_init(struct pci_access *);
		58	void pci_cleanup(struct pci_access *);
		59
		60	/* Scanning of devices */
		61	void pci_scan_bus(struct pci_access *acc);
		62	struct pci_dev pci_get_dev(struct pci_access acc, int domain, int bus, int dev, int func); /* Raw access to specified device */
		63	void pci_free_dev(struct pci_dev *);
		64
		65	/*
		66	* Devices
		67	*/
		68
		69	struct pci_dev {
		70	struct pci_dev next; / Next device in the chain */
		71	u16 domain; /* PCI domain (host bridge) */
		72	u8 bus, dev, func; /* Bus inside domain, device and function */
		73
		74	/* These fields are set by pci_fill_info() */
		75	int known_fields; /* Set of info fields already known */
		76	u16 vendor_id, device_id; /* Identity of the device */
		77	int irq; /* IRQ number */
		78	pciaddr_t base_addr[6]; /* Base addresses */
		79	pciaddr_t size[6]; /* Region sizes */
		80	pciaddr_t rom_base_addr; /* Expansion ROM base address */
		81	pciaddr_t rom_size; /* Expansion ROM size */
		82
		83	/* Fields used internally: */
		84	struct pci_access *access;
		85	struct pci_methods *methods;
		86	u8 cache; / Cached config registers */
		87	int cache_len;
		88	int hdrtype; /* Cached low 7 bits of header type, -1 if unknown */
		89	void aux; / Auxillary data */
		90	};
		91
		92	#define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
		93	#define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
		94
		95	u8 pci_read_byte(struct pci_dev , int pos); / Access to configuration space */
		96	u16 pci_read_word(struct pci_dev *, int pos);
		97	u32 pci_read_long(struct pci_dev *, int pos);
		98	int pci_read_block(struct pci_dev , int pos, u8 buf, int len);
		99	int pci_write_byte(struct pci_dev *, int pos, u8 data);
		100	int pci_write_word(struct pci_dev *, int pos, u16 data);
		101	int pci_write_long(struct pci_dev *, int pos, u32 data);
		102	int pci_write_block(struct pci_dev , int pos, u8 buf, int len);
		103
		104	int pci_fill_info(struct pci_dev , int flags); / Fill in device information */
		105
		106	#define PCI_FILL_IDENT 1
		107	#define PCI_FILL_IRQ 2
		108	#define PCI_FILL_BASES 4
		109	#define PCI_FILL_ROM_BASE 8
		110	#define PCI_FILL_SIZES 16
		111	#define PCI_FILL_RESCAN 0x10000
		112
		113	void pci_setup_cache(struct pci_dev , u8 cache, int len);
		114
		115	/*
		116	* Conversion of PCI ID's to names (according to the pci.ids file)
		117	*
		118	* Call pci_lookup_name() to identify different types of ID's:
		119	*
		120	* VENDOR (vendorID) -> vendor
		121	* DEVICE (vendorID, deviceID) -> device
		122	* VENDOR \| DEVICE (vendorID, deviceID) -> combined vendor and device
		123	* SUBSYSTEM \| VENDOR (subvendorID) -> subsystem vendor
		124	* SUBSYSTEM \| DEVICE (vendorID, deviceID, subvendorID, subdevID) -> subsystem device
		125	* SUBSYSTEM \| VENDOR \| DEVICE (vendorID, deviceID, subvendorID, subdevID) -> combined subsystem v+d
		126	* SUBSYSTEM \| ... (-1, -1, subvendorID, subdevID) -> generic subsystem
		127	* CLASS (classID) -> class
		128	* PROGIF (classID, progif) -> programming interface
		129	*/
		130
		131	char pci_lookup_name(struct pci_access a, char *buf, int size, int flags,
		132	...);
		133
		134	int pci_load_name_list(struct pci_access a); / Called automatically by pci_lookup_() when needed; returns success /
		135	void pci_free_name_list(struct pci_access a); / Called automatically by pci_cleanup() */
		136
		137	enum pci_lookup_mode {
		138	PCI_LOOKUP_VENDOR = 1, /* Vendor name (args: vendorID) */
		139	PCI_LOOKUP_DEVICE = 2, /* Device name (args: vendorID, deviceID) */
		140	PCI_LOOKUP_CLASS = 4, /* Device class (args: classID) */
		141	PCI_LOOKUP_SUBSYSTEM = 8,
		142	PCI_LOOKUP_PROGIF = 16, /* Programming interface (args: classID, prog_if) */
		143	PCI_LOOKUP_NUMERIC = 0x10000, /* Want only formatted numbers; default if access->numeric_ids is set */
		144	PCI_LOOKUP_NO_NUMBERS = 0x20000 /* Return NULL if not found in the database; default is to print numerically */
		145	};
		146
		147	#endif

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(root)//branches/dd/uspace/app/lspci/libpci/pci.h – Rev 4300