ipu6-isys-csi2.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* Copyright (C) 2013--2024 Intel Corporation */
 3
 4#ifndef IPU6_ISYS_CSI2_H
 5#define IPU6_ISYS_CSI2_H
 6
 7#include <linux/container_of.h>
 8
 9#include "ipu6-isys-subdev.h"
10#include "ipu6-isys-video.h"
11
12struct media_entity;
13struct v4l2_mbus_frame_desc_entry;
14
15struct ipu6_isys_video;
16struct ipu6_isys;
17struct ipu6_isys_stream;
18
19#define NR_OF_CSI2_VC		16
20#define INVALID_VC_ID		-1
21#define NR_OF_CSI2_SINK_PADS	1
22#define CSI2_PAD_SINK		0
23#define NR_OF_CSI2_SRC_PADS	8
24#define CSI2_PAD_SRC		1
25#define NR_OF_CSI2_PADS		(NR_OF_CSI2_SINK_PADS + NR_OF_CSI2_SRC_PADS)
26
27#define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_A		0
28#define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_B		0
29#define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_A		95
30#define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_B		-8
31
32#define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_A		0
33#define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_B		0
34#define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_A		85
35#define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_B		-2
36
37struct ipu6_isys_csi2 {
38	struct ipu6_isys_subdev asd;
39	struct ipu6_isys *isys;
40	struct ipu6_isys_video av[NR_OF_CSI2_SRC_PADS];
41
42	void __iomem *base;
43	u32 receiver_errors;
44	unsigned int nlanes;
45	unsigned int port;
46};
47
48struct ipu6_isys_csi2_timing {
49	u32 ctermen;
50	u32 csettle;
51	u32 dtermen;
52	u32 dsettle;
53};
54
55struct ipu6_csi2_error {
56	const char *error_string;
57	bool is_info_only;
58};
59
60#define ipu6_isys_subdev_to_csi2(__sd) \
61	container_of(__sd, struct ipu6_isys_csi2, asd)
62
63#define to_ipu6_isys_csi2(__asd) container_of(__asd, struct ipu6_isys_csi2, asd)
64
65s64 ipu6_isys_csi2_get_link_freq(struct ipu6_isys_csi2 *csi2);
66int ipu6_isys_csi2_init(struct ipu6_isys_csi2 *csi2, struct ipu6_isys *isys,
67			void __iomem *base, unsigned int index);
68void ipu6_isys_csi2_cleanup(struct ipu6_isys_csi2 *csi2);
69void ipu6_isys_csi2_sof_event_by_stream(struct ipu6_isys_stream *stream);
70void ipu6_isys_csi2_eof_event_by_stream(struct ipu6_isys_stream *stream);
71void ipu6_isys_register_errors(struct ipu6_isys_csi2 *csi2);
72void ipu6_isys_csi2_error(struct ipu6_isys_csi2 *csi2);
73int ipu6_isys_csi2_get_remote_desc(u32 source_stream,
74				   struct ipu6_isys_csi2 *csi2,
75				   struct media_entity *source_entity,
76				   struct v4l2_mbus_frame_desc_entry *entry);
77
78#endif /* IPU6_ISYS_CSI2_H */