Jacopo Mondi
b5f0848d0f
Add isValid() method to verify the allocator device has been open correctly. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
33 lines
669 B
C++
33 lines
669 B
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2020, Raspberry Pi (Trading) Limited
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*
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* dma_heaps.h - Helper class for dma-heap allocations.
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*/
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#ifndef __LIBCAMERA_PIPELINE_RASPBERRYPI_DMA_HEAPS_H__
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#define __LIBCAMERA_PIPELINE_RASPBERRYPI_DMA_HEAPS_H__
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#include <libcamera/file_descriptor.h>
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namespace libcamera {
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namespace RPi {
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class DmaHeap
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{
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public:
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DmaHeap();
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~DmaHeap();
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bool isValid() const { return dmaHeapHandle_ > -1; }
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FileDescriptor alloc(const char *name, std::size_t size);
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private:
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int dmaHeapHandle_;
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};
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} /* namespace RPi */
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_PIPELINE_RASPBERRYPI_DMA_HEAPS_H__ */
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