1 /* Copyright (c) 2015, The Linux Foundataion. All rights reserved.
2  *
3  * Redistribution and use in source and binary forms, with or without
4  * modification, are permitted provided that the following conditions are
5  * met:
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7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above
9  *       copyright notice, this list of conditions and the following
10  *       disclaimer in the documentation and/or other materials provided
11  *       with the distribution.
12  *     * Neither the name of The Linux Foundation nor the names of its
13  *       contributors may be used to endorse or promote products derived
14  *       from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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28  */
29 
30 #ifndef __QCAMERAPERF_H__
31 #define __QCAMERAPERF_H__
32 
33 #include <dlfcn.h>
34 #include <utils/Mutex.h>
35 #include <hardware/power.h>
36 
37 typedef enum {
38     ALL_CORES_ONLINE = 0x7FE,
39     ALL_CPUS_PWR_CLPS_DIS = 0x101,
40     CPU0_MIN_FREQ_TURBO_MAX = 0x2FE,
41     CPU4_MIN_FREQ_TURBO_MAX = 0x1FFE,
42 }perf_lock_params_t;
43 
44 /* Time related macros */
45 #define ONE_SEC 1000
46 typedef int64_t nsecs_t;
47 #define NSEC_PER_SEC 1000000000LLU
48 
49 using namespace android;
50 
51 namespace qcamera {
52 
53 class QCameraPerfLock {
54 public:
55     QCameraPerfLock();
56     ~QCameraPerfLock();
57 
58     void    lock_init();
59     void    lock_deinit();
60     int32_t lock_rel();
61     int32_t lock_acq();
62     int32_t lock_acq_timed(int32_t timer_val);
63     int32_t lock_rel_timed();
64     bool    isTimerReset();
65     void    powerHintInternal(power_hint_t hint, uint32_t enable);
66     void    powerHint(power_hint_t hint, uint32_t enable);
67 
68 private:
69     int32_t        (*perf_lock_acq)(int, int, int[], int);
70     int32_t        (*perf_lock_rel)(int);
71     void            startTimer(uint32_t timer_val);
72     void           *mDlHandle;
73     uint32_t        mPerfLockEnable;
74     Mutex           mLock;
75     int32_t         mPerfLockHandle;  // Performance lock library handle
76     int32_t         mPerfLockHandleTimed;  // Performance lock library handle
77     power_module_t *m_pPowerModule;   // power module Handle
78     power_hint_t    mCurrentPowerHint;
79     uint32_t        mCurrentPowerHintEnable;
80     uint32_t        mTimerSet;
81     uint32_t        mPerfLockTimeout;
82     nsecs_t         mStartTimeofLock;
83 };
84 
85 }; // namespace qcamera
86 
87 #endif /* __QCAMREAPERF_H__ */
88