/*
* The PCI Library
*
- * Copyright (c) 1997--2020 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 0x030700
+#define PCI_LIB_VERSION 0x030a00
#ifndef PCI_ABI
#define PCI_ABI
PCI_ACCESS_DARWIN, /* Darwin */
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
};
struct pci_param *params;
struct id_entry **id_hash; /* names.c */
struct id_bucket *current_id_bucket;
- int id_load_failed;
+ int id_load_attempted;
int id_cache_status; /* 0=not read, 1=read, 2=dirty */
+ char *id_cache_name;
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 */
+ void *backend_data; /* Private data of the back end */
};
/* Initialize PCI access */
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 for use by the back-end */
+ 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_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;
/*
#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;
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;