xref: /freebsd/sys/dev/isci/scil/sci_base_state.h (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
1 /*-
2  * This file is provided under a dual BSD/GPLv2 license.  When using or
3  * redistributing this file, you may do so under either license.
4  *
5  * GPL LICENSE SUMMARY
6  *
7  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of version 2 of the GNU General Public License as
11  * published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
21  * The full GNU General Public License is included in this distribution
22  * in the file called LICENSE.GPL.
23  *
24  * BSD LICENSE
25  *
26  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
27  * All rights reserved.
28  *
29  * Redistribution and use in source and binary forms, with or without
30  * modification, are permitted provided that the following conditions
31  * are met:
32  *
33  *   * Redistributions of source code must retain the above copyright
34  *     notice, this list of conditions and the following disclaimer.
35  *   * Redistributions in binary form must reproduce the above copyright
36  *     notice, this list of conditions and the following disclaimer in
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38  *     distribution.
39  *
40  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
41  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
42  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
43  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
44  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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46  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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50  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
51  *
52  * $FreeBSD$
53  */
54 #ifndef _SCI_BASE_STATE_H_
55 #define _SCI_BASE_STATE_H_
56 
57 /**
58  * @file
59  *
60  * @brief This file contains all of the structures, constants, and methods
61  *        common to all base object definitions.
62  */
63 
64 #ifdef __cplusplus
65 extern "C" {
66 #endif // __cplusplus
67 
68 #include <dev/isci/scil/sci_base_object.h>
69 
70 typedef void (*SCI_BASE_STATE_HANDLER_T)(
71    void
72 );
73 
74 typedef void (*SCI_STATE_TRANSITION_T)(
75    SCI_BASE_OBJECT_T *base_object
76 );
77 
78 /**
79  * @struct SCI_BASE_STATE
80  *
81  * @brief The base state object abstracts the fields common to all state
82  *        objects defined in SCI.
83  */
84 typedef struct SCI_BASE_STATE
85 {
86    /**
87     * This field indicates the defined value for this state.  After
88     * initialization this field should not change.
89     */
90    U32  value;
91 
92    /**
93     * This field is a function pointer that defines the method to be
94     * invoked when the state is entered.
95     */
96    SCI_STATE_TRANSITION_T  enter_state;
97 
98    /**
99     * This field is a function pointer that defines the method to be
100     * invoked when the state is exited.
101     */
102    SCI_STATE_TRANSITION_T  exit_state;
103 
104 } SCI_BASE_STATE_T;
105 
106 #ifdef __cplusplus
107 }
108 #endif // __cplusplus
109 
110 #endif // _SCI_BASE_STATE_H_
111