Zephyr API Documentation 3.7.99
A Scalable Open Source RTOS
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dma_mcux_pxp.h
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1/*
2 * Copyright 2023-2024 NXP
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#ifndef ZEPHYR_INCLUDE_DRIVERS_DMA_MCUX_PXP_H_
8#define ZEPHYR_INCLUDE_DRIVERS_DMA_MCUX_PXP_H_
9
10#define DMA_MCUX_PXP_CMD_MASK 0xE0
11#define DMA_MCUX_PXP_CMD_SHIFT 0x5
12
13#define DMA_MCUX_PXP_FMT_MASK 0x1F
14#define DMA_MCUX_PXP_FMT_SHIFT 0x0
15
16/*
17 * In order to configure the PXP for rotation, the user should
18 * supply a format and command as the DMA slot parameter, like so:
19 * dma_slot = (DMA_MCUX_PXP_FTM(DMA_MCUX_PXP_FMT_RGB565) |
20 * DMA_MCUX_PXP_CMD(DMA_MCUX_PXP_CMD_ROTATE_90))
21 * head block source address: input buffer address
22 * head block destination address: output buffer address
23 * source data size: input buffer size in bytes
24 * source burst length: height of source buffer in pixels
25 * dest data size: output buffer size in bytes
26 * dest burst length: height of destination buffer in pixels
27 */
28
29#define DMA_MCUX_PXP_FMT(x) ((x << DMA_MCUX_PXP_FMT_SHIFT) & DMA_MCUX_PXP_FMT_MASK)
30#define DMA_MCUX_PXP_CMD(x) ((x << DMA_MCUX_PXP_CMD_SHIFT) & DMA_MCUX_PXP_CMD_MASK)
31
32#define DMA_MCUX_PXP_CMD_ROTATE_0 0
33#define DMA_MCUX_PXP_CMD_ROTATE_90 1
34#define DMA_MCUX_PXP_CMD_ROTATE_180 2
35#define DMA_MCUX_PXP_CMD_ROTATE_270 3
36
37#define DMA_MCUX_PXP_FMT_RGB565 0
38#define DMA_MCUX_PXP_FMT_RGB888 1
39#define DMA_MCUX_PXP_FMT_ARGB8888 2
40
41#define DMA_MCUX_PXP_FLIP_MASK 0x3
42#define DMA_MCUX_PXP_FLIP_SHIFT 0x0
43
44/*
45 * In order to configure the PXP to flip, the user should
46 * supply a flip setting as the DMA linked_channel parameter, like so:
47 * linked_channel |= DMA_MCUX_PXP_FLIP(DMA_MCUX_PXP_FLIP_HORIZONTAL)
48 */
49
50#define DMA_MCUX_PXP_FLIP(x) ((x << DMA_MCUX_PXP_FLIP_SHIFT) & DMA_MCUX_PXP_FLIP_MASK)
51
52#define DMA_MCUX_PXP_FLIP_DISABLE 0
53#define DMA_MCUX_PXP_FLIP_HORIZONTAL 1
54#define DMA_MCUX_PXP_FLIP_VERTICAL 2
55#define DMA_MCUX_PXP_FLIP_BOTH 3
56
57#endif /* ZEPHYR_INCLUDE_DRIVERS_DMA_MCUX_PXP_H_ */