1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2015, Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 */
15
16/* For MIPI_PORT0_ID to MIPI_PORT2_ID */
17#include "system_global.h"
18
19#ifndef __IA_CSS_INPUT_PORT_H
20#define __IA_CSS_INPUT_PORT_H
21
22/* @file
23 * This file contains information about the possible input ports for CSS
24 */
25
26/* Backward compatible for CSS API 2.0 only
27 *  TO BE REMOVED when all drivers move to CSS	API 2.1
28 */
29#define	IA_CSS_CSI2_PORT_4LANE MIPI_PORT0_ID
30#define	IA_CSS_CSI2_PORT_1LANE MIPI_PORT1_ID
31#define	IA_CSS_CSI2_PORT_2LANE MIPI_PORT2_ID
32
33/* The CSI2 interface supports 2 types of compression or can
34 *  be run without compression.
35 */
36enum ia_css_csi2_compression_type {
37	IA_CSS_CSI2_COMPRESSION_TYPE_NONE, /** No compression */
38	IA_CSS_CSI2_COMPRESSION_TYPE_1,    /** Compression scheme 1 */
39	IA_CSS_CSI2_COMPRESSION_TYPE_2     /** Compression scheme 2 */
40};
41
42struct ia_css_csi2_compression {
43	enum ia_css_csi2_compression_type type;
44	/** Compression used */
45	unsigned int                      compressed_bits_per_pixel;
46	/** Compressed bits per pixel (only when compression is enabled) */
47	unsigned int                      uncompressed_bits_per_pixel;
48	/** Uncompressed bits per pixel (only when compression is enabled) */
49};
50
51/* Input port structure.
52 */
53struct ia_css_input_port {
54	enum mipi_port_id port; /** Physical CSI-2 port */
55	unsigned int num_lanes; /** Number of lanes used (4-lane port only) */
56	unsigned int timeout;   /** Timeout value */
57	unsigned int rxcount;   /** Register value, should include all lanes */
58	struct ia_css_csi2_compression compression; /** Compression used */
59};
60
61#endif /* __IA_CSS_INPUT_PORT_H */
62