blob: 80bf29e7f78d419a1848742cbf4a841bfbc75847 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2020, Raspberry Pi Ltd
*
* dma_heaps.h - Helper class for dma-heap allocations.
*/
#pragma once
#include <stddef.h>
#include <libcamera/base/flags.h>
#include <libcamera/base/unique_fd.h>
namespace libcamera {
class DmaHeap
{
public:
enum class DmaHeapFlag {
Cma = 1 << 0,
System = 1 << 1,
};
using DmaHeapFlags = Flags<DmaHeapFlag>;
DmaHeap(DmaHeapFlags flags = DmaHeapFlag::Cma);
~DmaHeap();
bool isValid() const { return dmaHeapHandle_.isValid(); }
UniqueFD alloc(const char *name, std::size_t size);
private:
UniqueFD dmaHeapHandle_;
};
LIBCAMERA_FLAGS_ENABLE_OPERATORS(DmaHeap::DmaHeapFlag)
} /* namespace libcamera */
|
