openmv/ports/stm32/dma_utils.h
iabdalkader daf2bb30da misc: Restructure repo.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2025-04-13 08:28:34 +02:00

39 lines
1.6 KiB
C

/*
* 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__