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