bee-dma.h

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/*
 * Copyright (c) 2026, Realtek Semiconductor Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_DMA_BEE_DMA_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_DMA_BEE_DMA_H_

 
/* Direction, bits [1:0] */
#define BEE_DMA_M2M 0
#define BEE_DMA_M2P 1
#define BEE_DMA_P2M 2
 
/* Source address adjustment, bits [3:2] */
#define BEE_DMA_SRC_INC   (0 << 2)
#define BEE_DMA_SRC_DEC   (1 << 2)
#define BEE_DMA_SRC_FIXED (2 << 2)
 
/* Destination address adjustment, bits [5:4] */
#define BEE_DMA_DST_INC   (0 << 4)
#define BEE_DMA_DST_DEC   (1 << 4)
#define BEE_DMA_DST_FIXED (2 << 4)
 
/* Source data width, bits [7:6] */
#define BEE_DMA_SRC_WIDTH_8BIT  (0 << 6)
#define BEE_DMA_SRC_WIDTH_16BIT (1 << 6)
#define BEE_DMA_SRC_WIDTH_32BIT (2 << 6)
 
/* Destination data width, bits [9:8] */
#define BEE_DMA_DST_WIDTH_8BIT  (0 << 8)
#define BEE_DMA_DST_WIDTH_16BIT (1 << 8)
#define BEE_DMA_DST_WIDTH_32BIT (2 << 8)
 
/* Source burst size (msize), bits [12:10] */
#define BEE_DMA_SRC_MSIZE(n) ((n) << 10)
/* Destination burst size (msize), bits [15:13] */
#define BEE_DMA_DST_MSIZE(n) ((n) << 13)
 
/* Named burst-size values for use with BEE_DMA_SRC_MSIZE / BEE_DMA_DST_MSIZE */
#define BEE_DMA_MSIZE_1   0
#define BEE_DMA_MSIZE_4   1
#define BEE_DMA_MSIZE_8   2
#define BEE_DMA_MSIZE_16  3
#define BEE_DMA_MSIZE_32  4
#define BEE_DMA_MSIZE_64  5
#define BEE_DMA_MSIZE_128 6
#define BEE_DMA_MSIZE_256 7
 
/* Channel priority, bits [20:16]. Bee supports 0 to 9. */
#define BEE_DMA_PRIORITY(n) ((n) << 16)
 
#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_DMA_BEE_DMA_H_ */