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39 lines
1.6 KiB
C
39 lines
1.6 KiB
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2023-2024 OpenMV, LLC.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* STM32 DMA helper functions.
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*/
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#ifndef __DMA_UTILS_H__
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#define __DMA_UTILS_H__
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#ifdef MDMA
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#define MDMA_CHAN_TO_INSTANCE(x) \
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(MDMA_Channel_TypeDef *) (MDMA_Channel0_BASE + ((MDMA_Channel1_BASE - MDMA_Channel0_BASE) * x))
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#endif
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uint8_t dma_utils_channel_to_irqn(void *dma_channel);
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uint8_t dma_utils_channel_to_id(void *dma_channel);
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int dma_utils_set_irq_descr(void *dma_channel, DMA_HandleTypeDef *dma_descr);
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uint8_t dma_utils_mpu_region_size(uint32_t size);
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#endif // __DMA_UTILS_H__
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