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/* Copyright (c) 2015, The Linux Foundataion. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __CPUHINT_H__
#define __CPUHINT_H__
#include <core/sdm_types.h>
#include <utils/sys.h>
namespace sdm {
class HWCDebugHandler;
class CPUHint {
public:
DisplayError Init(HWCDebugHandler *debug_handler);
void Set();
void Reset();
private:
enum { HINT = 0x4501 /* 45-display layer hint, 01-Enable */ };
bool enabled_ = false;
// frames to wait before setting this hint
int pre_enable_window_ = 0;
int frame_countdown_ = 0;
int lock_handle_ = 0;
bool lock_acquired_ = false;
DynLib vendor_ext_lib_;
int (*fn_lock_acquire_)(int handle, int duration, int *hints, int num_args) = NULL;
int (*fn_lock_release_)(int value) = NULL;
};
} // namespace sdm
#endif // __CPUHINT_H__
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