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      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:
      6  *     * Redistributions of source code must retain the above copyright
      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
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     23  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     25  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     26  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  *
     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