/*
* The PCI Library
*
- * Copyright (c) 1997--2018 Martin Mares <mj@ucw.cz>
+ * Copyright (c) 1997--2023 Martin Mares <mj@ucw.cz>
*
- * Can be freely distributed and used under the terms of the GNU GPL.
+ * Can be freely distributed and used under the terms of the GNU GPL v2+
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef _PCI_LIB_H
#include "header.h"
#include "types.h"
-#define PCI_LIB_VERSION 0x030601
+#define PCI_LIB_VERSION 0x030a00
#ifndef PCI_ABI
#define PCI_ABI
PCI_ACCESS_OBSD_DEVICE, /* OpenBSD /dev/pci */
PCI_ACCESS_DUMP, /* Dump file */
PCI_ACCESS_DARWIN, /* Darwin */
- PCI_ACCESS_SYLIXOS_DEVICE, /* SylixOS pci */
+ PCI_ACCESS_SYLIXOS_DEVICE, /* SylixOS pci */
+ PCI_ACCESS_HURD, /* GNU/Hurd */
+ PCI_ACCESS_WIN32_CFGMGR32, /* Win32 cfgmgr32.dll */
+ PCI_ACCESS_WIN32_KLDBG, /* Win32 kldbgdrv.sys */
+ PCI_ACCESS_WIN32_SYSDBG, /* Win32 NT SysDbg */
+ PCI_ACCESS_MMIO_TYPE1, /* MMIO ports, type 1 */
+ PCI_ACCESS_MMIO_TYPE1_EXT, /* MMIO ports, type 1 extended */
+ PCI_ACCESS_ECAM, /* PCIe ECAM via /dev/mem */
PCI_ACCESS_MAX
};
int debugging; /* Turn on debugging messages */
/* Functions you can override: */
- void (*error)(char *msg, ...) PCI_PRINTF(1,2); /* Write error message and quit */
+ void (*error)(char *msg, ...) PCI_PRINTF(1,2) PCI_NONRET; /* 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 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 */
+ void *backend_data; /* Private data of the back end */
};
/* Initialize PCI access */
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 */
+ unsigned int known_fields; /* Set of info fields already known (see pci_fill_info()) */
u16 vendor_id, device_id; /* Identity of the device */
u16 device_class; /* PCI device class */
int irq; /* IRQ number */
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) */
+ pciaddr_t bridge_base_addr[4]; /* Bridge base addresses (without flags) */
+ pciaddr_t bridge_size[4]; /* Bridge sizes */
+ pciaddr_t bridge_flags[4]; /* PCI_IORESOURCE_* flags for bridge addresses */
+ u8 prog_if, rev_id; /* Programming interface for device_class and revision id */
+ u16 subsys_vendor_id, subsys_id; /* Subsystem vendor id and subsystem id */
+ struct pci_dev *parent; /* Parent device, does not have to be always accessible */
+ int no_config_access; /* No access to config space for this device */
/* Fields used internally */
struct pci_access *access;
u8 *cache; /* Cached config registers */
int cache_len;
int hdrtype; /* Cached low 7 bits of header type, -1 if unknown */
- void *aux; /* Auxiliary data */
+ void *backend_data; /* Private data for of the back end */
struct pci_property *properties; /* A linked list of extra properties */
+ struct pci_cap *last_cap; /* Last capability in the list */
};
#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 */
+/* Access to configuration space */
+u8 pci_read_byte(struct pci_dev *, int pos) PCI_ABI;
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;
+
+/* Configuration space as a sequence of bytes (little-endian) */
+int pci_read_block(struct pci_dev *, int pos, u8 *buf, int len) PCI_ABI;
int pci_write_block(struct pci_dev *, int pos, u8 *buf, int len) PCI_ABI;
/*
*
* Some properties are stored directly in the pci_dev structure.
* The remaining ones can be accessed through pci_get_string_property().
+ *
+ * pci_fill_info() returns the current value of pci_dev->known_fields.
+ * This is a bit mask of all fields, which were already obtained during
+ * the lifetime of the device. This includes fields which are not supported
+ * by the particular device -- in that case, the field is left at its default
+ * value, which is 0 for integer fields and NULL for pointers. On the other
+ * hand, we never consider known fields unsupported by the current back-end;
+ * such fields always contain the default value.
+ *
+ * XXX: flags and the result should be unsigned, but we do not want to break the ABI.
*/
int pci_fill_info(struct pci_dev *, int flags) PCI_ABI;
#define PCI_FILL_NUMA_NODE 0x0800
#define PCI_FILL_IO_FLAGS 0x1000
#define PCI_FILL_DT_NODE 0x2000 /* Device tree node */
+#define PCI_FILL_IOMMU_GROUP 0x4000
+#define PCI_FILL_BRIDGE_BASES 0x8000
#define PCI_FILL_RESCAN 0x00010000
+#define PCI_FILL_CLASS_EXT 0x00020000 /* prog_if and rev_id */
+#define PCI_FILL_SUBSYS 0x00040000 /* subsys_vendor_id and subsys_id */
+#define PCI_FILL_PARENT 0x00080000
+#define PCI_FILL_DRIVER 0x00100000 /* OS driver currently in use (string property) */
void pci_setup_cache(struct pci_dev *, u8 *cache, int len) PCI_ABI;
#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;
+struct pci_cap *pci_find_cap_nr(struct pci_dev *, unsigned int id, unsigned int type,
+ unsigned int *cap_number) PCI_ABI;
/*
* Filters
struct pci_filter {
int domain, bus, slot, func; /* -1 = ANY */
- int vendor, device, device_class;
- int rfu[3];
+ int vendor, device;
+ int device_class;
+ unsigned int device_class_mask; /* Which bits of the device_class are compared, default=all */
+ int prog_if;
+ int rfu[1];
};
void pci_filter_init(struct pci_access *, struct pci_filter *) PCI_ABI;
projects / pciutils.git / blobdiff