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Achin Gupta4f6ad662013-10-25 09:08:21 +01001/*
2 * Copyright (c) 2013, ARM Limited. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * Neither the name of ARM nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific
16 * prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef __PM_H__
32#define __PM_H__
33
34#ifndef __ASSEMBLY__
35
36/*******************************************************************************
37 * Structure populated by platform specific code to export routines which
38 * perform common low level pm functions
39 ******************************************************************************/
40typedef struct {
41 int (*cpu_on)(unsigned long);
42 int (*cpu_off)(unsigned long);
43 int (*cpu_suspend)(unsigned long);
44 int (*affinity_info)(unsigned long, unsigned int);
45} pm_frontend_ops;
46
47/*******************************************************************************
48 * Structure populated by a generic power management api implementation e.g.
49 * psci to perform api specific bits after a cpu has been turned on.
50 ******************************************************************************/
51typedef struct {
52 unsigned long (*cpu_off_finisher)(unsigned long);
53 unsigned long (*cpu_suspend_finisher)(unsigned long);
54} pm_backend_ops;
55
56/*******************************************************************************
57 * Function & variable prototypes
58 ******************************************************************************/
59extern pm_frontend_ops *get_pm_frontend_ops(void);
60extern pm_backend_ops *get_pm_backend_ops(void);
61extern void set_pm_frontend_ops(pm_frontend_ops *);
62extern void set_pm_backend_ops(pm_backend_ops *);
63
64#endif /*__ASSEMBLY__*/
65
66#endif /* __PM_H__ */