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#include <sys/pci_cfgacc.h>
27
28#define	PCI_CFGACC_FILLREQ(r, d, b, o, s, w, v)				\
29	{(r).rcdip = (d); (r).bdf = (b); (r).offset = (o);		\
30	(r).size = (s); (r).write = w; (r).ioacc = B_FALSE; 		\
31	VAL64(&(r)) = (v); }
32
33/*
34 * Common interfaces for accessing pci config space
35 */
36
37/*
38 * This pointer should be initialized before using, here doesn't check it.
39 * For x86:
40 * 	initialized at the end of pci_check();
41 * For Sparc:
42 *  initialized in the px_attach().
43 */
44void (*pci_cfgacc_acc_p)(pci_cfgacc_req_t *req);
45
46uint8_t
47pci_cfgacc_get8(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
48{
49	pci_cfgacc_req_t req;
50
51	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 1, B_FALSE, 0);
52	(*pci_cfgacc_acc_p)(&req);
53	return (VAL8(&req));
54}
55
56void
57pci_cfgacc_put8(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint8_t data)
58{
59	pci_cfgacc_req_t req;
60
61	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 1, B_TRUE, data);
62	(*pci_cfgacc_acc_p)(&req);
63}
64
65uint16_t
66pci_cfgacc_get16(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
67{
68	pci_cfgacc_req_t req;
69
70	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 2, B_FALSE, 0);
71	(*pci_cfgacc_acc_p)(&req);
72	return (VAL16(&req));
73}
74
75void
76pci_cfgacc_put16(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint16_t data)
77{
78	pci_cfgacc_req_t req;
79
80	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 2, B_TRUE, data);
81	(*pci_cfgacc_acc_p)(&req);
82}
83
84uint32_t
85pci_cfgacc_get32(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
86{
87	pci_cfgacc_req_t req;
88
89	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 4, B_FALSE, 0);
90	(*pci_cfgacc_acc_p)(&req);
91	return (VAL32(&req));
92}
93
94void
95pci_cfgacc_put32(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint32_t data)
96{
97	pci_cfgacc_req_t req;
98
99	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 4, B_TRUE, data);
100	(*pci_cfgacc_acc_p)(&req);
101}
102
103uint64_t
104pci_cfgacc_get64(dev_info_t *rcdip, uint16_t bdf, uint16_t off)
105{
106	pci_cfgacc_req_t req;
107
108	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 8, B_FALSE, 0);
109	(*pci_cfgacc_acc_p)(&req);
110	return (VAL64(&req));
111}
112
113void
114pci_cfgacc_put64(dev_info_t *rcdip, uint16_t bdf, uint16_t off, uint64_t data)
115{
116	pci_cfgacc_req_t req;
117
118	PCI_CFGACC_FILLREQ(req, rcdip, bdf, off, 8, B_TRUE, data);
119	(*pci_cfgacc_acc_p)(&req);
120}
121