43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
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/* ion_alloc.h - ION registration and deregistartion functions
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*
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* Based on native pcm test application platform/system/extras/sound/playwav.c
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*
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* Copyright (C) 2008 The Android Open Source Project
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* Copyright (c) 2012, The Linux Foundation. All rights reserved.
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* Not a Contribution, Apache license notifications and license are retained
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* for attribution purposes only.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <linux/ion.h>
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#define ION_ALLOC_ALIGN 0x1000
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struct mmap_info {
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void* pBuffer;
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unsigned map_buf_size;
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unsigned filled_len;
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struct ion_fd_data ion_fd_data;
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struct ion_allocation_data ion_alloc_data;
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};
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void* alloc_ion_buffer(int ion_fd, unsigned int bufsize);
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int audio_register_ion(int drv_fd, struct mmap_info *ion_buf);
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int audio_deregister_ion(int drv_fd, struct mmap_info *ion_buf);
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void free_ion_buffer(int ion_fd, struct mmap_info **ion_buffer);
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