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75 lines
2.4 KiB
75 lines
2.4 KiB
4 months ago
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/*
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* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GRALLOC_IONALLOC_H
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#define GRALLOC_IONALLOC_H
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#include <linux/msm_ion.h>
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#include "memalloc.h"
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#include "gr.h"
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namespace gralloc {
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class IonAlloc : public IMemAlloc {
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public:
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virtual int alloc_buffer(alloc_data& data);
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virtual int free_buffer(void *base, size_t size,
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size_t offset, int fd);
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virtual int map_buffer(void **pBase, size_t size,
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size_t offset, int fd);
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virtual int unmap_buffer(void *base, size_t size,
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size_t offset);
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virtual int clean_buffer(void*base, size_t size,
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size_t offset, int fd, int op);
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IonAlloc() { mIonFd = FD_INIT; }
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~IonAlloc() { close_device(); }
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private:
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int mIonFd;
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int open_device();
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void close_device();
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mutable Locker mLock;
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};
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}
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#endif /* GRALLOC_IONALLOC_H */
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