/*
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* Copyright (C) 2016 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef ANDROID_INCLUDE_HARDWARE_GOLDFISH_DMA_H
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#define ANDROID_INCLUDE_HARDWARE_GOLDFISH_DMA_H
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#include <inttypes.h>
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// userspace interface
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struct goldfish_dma_context {
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uint64_t mapped_addr;
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uint32_t size;
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int32_t fd;
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};
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int goldfish_dma_create_region(uint32_t sz, struct goldfish_dma_context* res);
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void* goldfish_dma_map(struct goldfish_dma_context* cxt);
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int goldfish_dma_unmap(struct goldfish_dma_context* cxt);
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void goldfish_dma_write(struct goldfish_dma_context* cxt,
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const void* to_write,
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uint32_t sz);
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void goldfish_dma_free(goldfish_dma_context* cxt);
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uint64_t goldfish_dma_guest_paddr(const struct goldfish_dma_context* cxt);
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#endif
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