/*
- * $Id: pci.h,v 1.7 1999/10/09 13:26:14 mj Exp $
- *
* The PCI Library
*
- * Copyright (c) 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ * Copyright (c) 1997--2008 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#define _PCI_LIB_H
#include "config.h"
-
-#ifdef HAVE_OWN_HEADER_H
#include "header.h"
-#else
-#include <linux/pci.h>
-#endif
+#include "types.h"
-/*
- * Types
- */
-
-#ifdef OS_LINUX
-#include <linux/types.h>
+#define PCI_LIB_VERSION 0x030000
-typedef __u8 byte;
-typedef __u8 u8;
-typedef __u16 word;
-typedef __u16 u16;
-typedef __u32 u32;
-#endif
-
-#ifdef OS_FREEBSD
-#include <sys/types.h>
-
-typedef u_int8_t byte;
-typedef u_int8_t u8;
-typedef u_int16_t word;
-typedef u_int16_t u16;
-typedef u_int32_t u32;
-#endif
-
-#ifdef HAVE_LONG_ADDRESS
-typedef unsigned long long pciaddr_t;
-#else
-typedef unsigned long pciaddr_t;
+#ifndef PCI_ABI
+#define PCI_ABI
#endif
/*
*/
struct pci_methods;
-struct nl_entry;
-#define PCI_ACCESS_AUTO 0 /* Autodetection (params: none) */
-#define PCI_ACCESS_PROC_BUS_PCI 1 /* Linux /proc/bus/pci (params: path) */
-#define PCI_ACCESS_SYSCALLS 2 /* pciconfig_read() syscalls (params: none) */
-#define PCI_ACCESS_I386_TYPE1 3 /* i386 ports, type 1 (params: none) */
-#define PCI_ACCESS_I386_TYPE2 4 /* i386 ports, type 2 (params: none) */
-#define PCI_ACCESS_FBSD_DEVICE 5 /* FreeBSD /dev/pci (params: path) */
-#define PCI_ACCESS_DUMP 6 /* Dump file (params: filename) */
-#define PCI_ACCESS_MAX 7
+enum pci_access_type {
+ /* Known access methods, remember to update access.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_MAX
+};
struct pci_access {
/* Options you can change: */
unsigned int method; /* Access method */
- char *method_params[PCI_ACCESS_MAX]; /* Parameters for the methods */
int writeable; /* Open in read/write mode */
int buscentric; /* Bus-centric view of the world */
- char *id_file_name; /* Name of ID list file */
- int numeric_ids; /* Don't resolve device IDs to names */
+
+ 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, ...); /* Write error message and quit */
- void (*warning)(char *msg, ...); /* Write a warning message */
- void (*debug)(char *msg, ...); /* Write a debugging message */
+ 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;
- char *nl_list; /* Name list cache */
- struct nl_entry **nl_hash;
+ 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 */
int fd; /* proc: fd */
int fd_rw; /* proc: fd opened read-write */
struct pci_dev *cached_dev; /* proc: device the fd is for */
};
/* Initialize PCI access */
-struct pci_access *pci_alloc(void);
-void pci_init(struct pci_access *);
-void pci_cleanup(struct 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);
-struct pci_dev *pci_get_dev(struct pci_access *acc, int bus, int dev, int func); /* Raw access to specified device */
-void pci_free_dev(struct pci_dev *);
+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 */
- word bus; /* Higher byte can select host bridges */
- byte dev, func; /* Device and function */
+ u16 domain; /* PCI domain (host bridge) */
+ 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 */
- word vendor_id, device_id; /* Identity of the device */
+ 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 */
pciaddr_t size[6]; /* Region sizes */
/* Fields used internally: */
struct pci_access *access;
struct pci_methods *methods;
- byte *cache; /* Cached information */
+ u8 *cache; /* Cached config registers */
int cache_len;
- int hdrtype; /* Direct methods: header type */
+ int hdrtype; /* Cached low 7 bits of header type, -1 if unknown */
void *aux; /* Auxillary data */
};
#define PCI_ADDR_IO_MASK (~(pciaddr_t) 0x3)
#define PCI_ADDR_MEM_MASK (~(pciaddr_t) 0xf)
-byte pci_read_byte(struct pci_dev *, int pos); /* Access to configuration space */
-word pci_read_word(struct pci_dev *, int pos);
-u32 pci_read_long(struct pci_dev *, int pos);
-int pci_read_block(struct pci_dev *, int pos, byte *buf, int len);
-int pci_write_byte(struct pci_dev *, int pos, byte data);
-int pci_write_word(struct pci_dev *, int pos, word data);
-int pci_write_long(struct pci_dev *, int pos, u32 data);
-int pci_write_block(struct pci_dev *, int pos, byte *buf, int len);
+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_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;
-int pci_fill_info(struct pci_dev *, int flags); /* Fill in device information */
+int pci_fill_info(struct pci_dev *, int flags) PCI_ABI; /* Fill in device information */
#define PCI_FILL_IDENT 1
#define PCI_FILL_IRQ 2
#define PCI_FILL_BASES 4
#define PCI_FILL_ROM_BASE 8
#define PCI_FILL_SIZES 16
+#define PCI_FILL_CLASS 32
#define PCI_FILL_RESCAN 0x10000
-void pci_setup_cache(struct pci_dev *, byte *cache, int len);
+void pci_setup_cache(struct pci_dev *, u8 *cache, int len) PCI_ABI;
/*
* Filters
*/
struct pci_filter {
- int bus, slot, func; /* -1 = ANY */
+ int domain, bus, slot, func; /* -1 = ANY */
int vendor, device;
};
-void pci_filter_init(struct pci_access *, struct pci_filter *);
-char *pci_filter_parse_slot(struct pci_filter *, char *);
-char *pci_filter_parse_id(struct pci_filter *, char *);
-int pci_filter_match(struct pci_filter *, struct pci_dev *);
+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;
/*
- * Device names
+ * 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, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
-void pci_free_name_list(struct pci_access *a);
-
-#define PCI_LOOKUP_VENDOR 1
-#define PCI_LOOKUP_DEVICE 2
-#define PCI_LOOKUP_CLASS 4
-#define PCI_LOOKUP_SUBSYSTEM 8
-#define PCI_LOOKUP_PROGIF 16
-#define PCI_LOOKUP_NUMERIC 0x10000
+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 */
+};
#endif
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