1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#ifndef	_PCI_CFGACC_H
27#define	_PCI_CFGACC_H
28
29#include <sys/dditypes.h>
30
31#ifdef	__cplusplus
32extern "C" {
33#endif
34
35#ifndef _ASM
36
37#define	PCI_GETBDF(b, d, f)	\
38	((d != 0) ?		\
39	((((uint16_t)b & 0xff) << 8) + (((uint8_t)d & 0x1f) << 3) + \
40	((uint8_t)f & 0x7)) :	\
41	((((uint16_t)b & 0xff) << 8) + ((uint8_t)f & 0xff)))
42
43typedef union pci_cfg_data {
44	uint8_t b;
45	uint16_t w;
46	uint32_t dw;
47	uint64_t qw;
48} pci_cfg_data_t;
49
50typedef enum pci_config_size {
51	PCI_CFG_SIZE_BYTE = 1,
52	PCI_CFG_SIZE_WORD = 2,
53	PCI_CFG_SIZE_DWORD = 4,
54	PCI_CFG_SIZE_QWORD = 8
55} pci_config_size_t;
56
57typedef struct pci_cfgacc_req {
58	dev_info_t	*rcdip;
59	uint16_t	bdf;
60	uint16_t	offset;
61	uint8_t		size;
62	boolean_t	write;
63	pci_cfg_data_t	value;
64	boolean_t	ioacc;
65} pci_cfgacc_req_t;
66#define	VAL8(req)	((req)->value.b)
67#define	VAL16(req)	((req)->value.w)
68#define	VAL32(req)	((req)->value.dw)
69#define	VAL64(req)	((req)->value.qw)
70
71extern uint8_t	pci_cfgacc_get8(dev_info_t *, uint16_t, uint16_t);
72extern uint16_t	pci_cfgacc_get16(dev_info_t *, uint16_t, uint16_t);
73extern uint32_t	pci_cfgacc_get32(dev_info_t *, uint16_t, uint16_t);
74extern uint64_t	pci_cfgacc_get64(dev_info_t *, uint16_t, uint16_t);
75extern void	pci_cfgacc_put8(dev_info_t *, uint16_t, uint16_t, uint8_t);
76extern void	pci_cfgacc_put16(dev_info_t *, uint16_t, uint16_t, uint16_t);
77extern void	pci_cfgacc_put32(dev_info_t *, uint16_t, uint16_t, uint32_t);
78extern void	pci_cfgacc_put64(dev_info_t *, uint16_t, uint16_t, uint64_t);
79extern void	pci_cfgacc_acc(pci_cfgacc_req_t *);
80
81#endif /* _ASM */
82
83#ifdef	__cplusplus
84}
85#endif
86
87#endif /* _PCI_CFGACC_H */
88