/*
* 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 0x030900
+#define PCI_LIB_VERSION 0x030a00
#ifndef PCI_ABI
#define PCI_ABI
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 *aux; /* Auxiliary data for use by the back-end */
+ void *backend_data; /* Private data of the back end */
};
/* Initialize PCI 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;
/*