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40 lines
1.3 KiB
40 lines
1.3 KiB
// Copyright 2016 The Android Open Source Project
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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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#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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