arch/x86/kernel/include/sys/acpinex.h

   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 (c) 2009-2010, Intel Corporation.
  23  * All rights reserved.
  24  */
  25
  26 #ifndef _ACPI_NEXUS_H
  27 #define _ACPI_NEXUS_H
  28 #include <sys/types.h>
  29 #include <sys/dditypes.h>       /* needed for definition of dev_info_t */
  30 #include <sys/mutex.h>
  31
  32 #ifdef  __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 #ifdef  _KERNEL
  37
  38 #define ACPINEX_INSTANCE_MAX            (1 << 10)
  39 #define ACPINEX_INSTANCE_MASK           (ACPINEX_INSTANCE_MAX - 1)
  40 #define ACPINEX_INSTANCE_SHIFT          8
  41 #define ACPINEX_MINOR_TYPE_MASK         ((1 << ACPINEX_INSTANCE_SHIFT) - 1)
  42 #define ACPINEX_DEVCTL_MINOR            ((1 << ACPINEX_INSTANCE_SHIFT) - 1)
  43
  44 #define ACPINEX_MAKE_DEVCTL_MINOR(instance) \
  45         (((instance) << ACPINEX_INSTANCE_SHIFT) | ACPINEX_DEVCTL_MINOR)
  46 #define ACPINEX_IS_DEVCTL(minor)        \
  47         (((minor) & ACPINEX_MINOR_TYPE_MASK) == ACPINEX_DEVCTL_MINOR)
  48
  49 #define ACPINEX_GET_INSTANCE(minor)     ((minor) >> ACPINEX_INSTANCE_SHIFT)
  50
  51 extern int      acpinex_debug;
  52 #define ACPINEX_DEBUG(lvl, ...)         \
  53         if (acpinex_debug) cmn_err((lvl), __VA_ARGS__)
  54
  55 /* Softstate structure for acpinex instance. */
  56 typedef struct {
  57         dev_info_t                      *ans_dip;
  58         ACPI_HANDLE                     ans_hdl;
  59         int                             ans_fm_cap;
  60         ddi_iblock_cookie_t             ans_fm_ibc;
  61         kmutex_t                        ans_lock;
  62         char                            ans_path[MAXPATHLEN];
  63 } acpinex_softstate_t;
  64
  65 extern void acpinex_event_init(void);
  66 extern void acpinex_event_fini(void);
  67 extern int acpinex_event_scan(acpinex_softstate_t *, boolean_t);
  68
  69 #endif  /* _KERNEL */
  70
  71 #ifdef  __cplusplus
  72 }
  73 #endif
  74
  75 #endif  /* _ACPI_NEXUS_H */