dma_silabs_ldma.h

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/*
 * Copyright (c) 2025 Silicon Laboratories Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DRIVERS_DMA_SILABS_LDMA_H_
#define ZEPHYR_INCLUDE_DRIVERS_DMA_SILABS_LDMA_H_
 
#include <zephyr/drivers/dma.h>
 
#define SILABS_LDMA_SOURCE_MASK  GENMASK(21, 16)
#define SILABS_LDMA_SIG_MASK     GENMASK(3, 0)
 
#define SILABS_DMA_SLOT_SOURCE_MASK  GENMASK(7, 3)
#define SILABS_DMA_SLOT_SIG_MASK     GENMASK(2, 0)
 
#define SILABS_LDMA_REQSEL_TO_SLOT(signal)             \
        FIELD_PREP(SILABS_DMA_SLOT_SOURCE_MASK, FIELD_GET(SILABS_LDMA_SOURCE_MASK, signal)) | \
        FIELD_PREP(SILABS_DMA_SLOT_SIG_MASK, FIELD_GET(SILABS_LDMA_SIG_MASK, signal))
 
#define SILABS_LDMA_SLOT_TO_REQSEL(slot)     \
        FIELD_PREP(SILABS_LDMA_SOURCE_MASK, FIELD_GET(SILABS_DMA_SLOT_SOURCE_MASK, slot)) | \
        FIELD_PREP(SILABS_LDMA_SIG_MASK, FIELD_GET(SILABS_DMA_SLOT_SIG_MASK, slot))
 
int silabs_ldma_append_block(const struct device *dev, uint32_t channel,
                                        struct dma_config *config);
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_DMA_SILABS_LDMA_H_*/