xref: /titanic_51/usr/src/uts/i86pc/io/pci/pci_var.h (revision 8eea8e29cc4374d1ee24c25a07f45af132db3499)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  *
26  * PCItool interfaces internal to the i86pc PCI nexus driver.
27  */
28 
29 #ifndef	_SYS_PCI_VAR_H
30 #define	_SYS_PCI_VAR_H
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
33 
34 #ifdef	__cplusplus
35 extern "C" {
36 #endif
37 
38 extern void *pci_statep;
39 
40 /* State structure. */
41 typedef struct pci_state {
42 	dev_info_t *pci_dip;
43 } pci_state_t;
44 
45 /*
46  * The way the minor number for the devctl node is constructed in pcihp is:
47  * PCIHP_AP_MINOR_NUM(ddi_get_instance(dip), PCIHP_DEVCTL_MINOR)
48  * Use this number as the index value to ddi_soft_state_zalloc.
49  */
50 #define	DIP_TO_MINOR(dip) \
51 	(PCIHP_AP_MINOR_NUM(ddi_get_instance(dip), PCIHP_DEVCTL_MINOR))
52 
53 #define	PCI_DEV_TO_STATE(dev) \
54 	((pci_state_t *)(ddi_get_soft_state(pci_statep, getminor(dev))))
55 
56 #ifdef	__cplusplus
57 }
58 #endif
59 
60 #endif	/* _SYS_PCI_VAR_H */
61