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84 lines
2.7 KiB
84 lines
2.7 KiB
/* |
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* Copyright (c) 2011-2017, 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 __GR_ION_ALLOC_H__ |
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#define __GR_ION_ALLOC_H__ |
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#include <linux/msm_ion.h> |
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#define FD_INIT -1 |
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namespace gralloc1 { |
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enum { |
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CACHE_CLEAN = 0x1, |
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CACHE_INVALIDATE, |
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CACHE_CLEAN_AND_INVALIDATE, |
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}; |
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struct AllocData { |
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void *base = NULL; |
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int fd = -1; |
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int ion_handle = -1; |
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unsigned int offset = 0; |
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unsigned int size = 0; |
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unsigned int align = 1; |
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uintptr_t handle = 0; |
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bool uncached = false; |
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unsigned int flags = 0x0; |
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unsigned int heap_id = 0x0; |
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unsigned int alloc_type = 0x0; |
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}; |
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class IonAlloc { |
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public: |
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IonAlloc() { ion_dev_fd_ = FD_INIT; } |
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~IonAlloc() { CloseIonDevice(); } |
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bool Init(); |
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int AllocBuffer(AllocData *data); |
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int FreeBuffer(void *base, unsigned int size, unsigned int offset, int fd, int ion_handle); |
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int MapBuffer(void **base, unsigned int size, unsigned int offset, int fd); |
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int ImportBuffer(int fd); |
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int UnmapBuffer(void *base, unsigned int size, unsigned int offset); |
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int CleanBuffer(void *base, unsigned int size, unsigned int offset, int handle, int op); |
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private: |
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const char *kIonDevice = "/dev/ion"; |
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int OpenIonDevice(); |
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void CloseIonDevice(); |
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int ion_dev_fd_; |
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}; |
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} // namespace gralloc1 |
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#endif // __GR_ION_ALLOC_H__
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