xref: /freebsd/sys/dev/isci/scil/sci_base_state.h (revision 3c4ba5f55438f7afd4f4b0b56f88f2bb505fd6a6)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
3  *
4  * This file is provided under a dual BSD/GPLv2 license.  When using or
5  * redistributing this file, you may do so under either license.
6  *
7  * GPL LICENSE SUMMARY
8  *
9  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of version 2 of the GNU General Public License as
13  * published by the Free Software Foundation.
14  *
15  * This program is distributed in the hope that it will be useful, but
16  * WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  * General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
23  * The full GNU General Public License is included in this distribution
24  * in the file called LICENSE.GPL.
25  *
26  * BSD LICENSE
27  *
28  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
29  * All rights reserved.
30  *
31  * Redistribution and use in source and binary forms, with or without
32  * modification, are permitted provided that the following conditions
33  * are met:
34  *
35  *   * Redistributions of source code must retain the above copyright
36  *     notice, this list of conditions and the following disclaimer.
37  *   * Redistributions in binary form must reproduce the above copyright
38  *     notice, this list of conditions and the following disclaimer in
39  *     the documentation and/or other materials provided with the
40  *     distribution.
41  *
42  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53  *
54  * $FreeBSD$
55  */
56 #ifndef _SCI_BASE_STATE_H_
57 #define _SCI_BASE_STATE_H_
58 
59 /**
60  * @file
61  *
62  * @brief This file contains all of the structures, constants, and methods
63  *        common to all base object definitions.
64  */
65 
66 #ifdef __cplusplus
67 extern "C" {
68 #endif // __cplusplus
69 
70 #include <dev/isci/scil/sci_base_object.h>
71 
72 typedef void (*SCI_BASE_STATE_HANDLER_T)(
73    void
74 );
75 
76 typedef void (*SCI_STATE_TRANSITION_T)(
77    SCI_BASE_OBJECT_T *base_object
78 );
79 
80 /**
81  * @struct SCI_BASE_STATE
82  *
83  * @brief The base state object abstracts the fields common to all state
84  *        objects defined in SCI.
85  */
86 typedef struct SCI_BASE_STATE
87 {
88    /**
89     * This field indicates the defined value for this state.  After
90     * initialization this field should not change.
91     */
92    U32  value;
93 
94    /**
95     * This field is a function pointer that defines the method to be
96     * invoked when the state is entered.
97     */
98    SCI_STATE_TRANSITION_T  enter_state;
99 
100    /**
101     * This field is a function pointer that defines the method to be
102     * invoked when the state is exited.
103     */
104    SCI_STATE_TRANSITION_T  exit_state;
105 
106 } SCI_BASE_STATE_T;
107 
108 #ifdef __cplusplus
109 }
110 #endif // __cplusplus
111 
112 #endif // _SCI_BASE_STATE_H_
113