ipu7-isys-csi2.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2013 - 2025 Intel Corporation
 4 */
 5
 6#ifndef IPU7_ISYS_CSI2_H
 7#define IPU7_ISYS_CSI2_H
 8
 9#include <linux/container_of.h>
10#include <linux/types.h>
11
12#include "ipu7-isys-subdev.h"
13#include "ipu7-isys-video.h"
14
15struct ipu7_isys;
16struct ipu7_isys_csi2_pdata;
17struct ipu7_isys_stream;
18
19#define IPU7_NR_OF_CSI2_VC		16U
20#define INVALID_VC_ID			-1
21#define IPU7_NR_OF_CSI2_SINK_PADS	1U
22#define IPU7_CSI2_PAD_SINK		0U
23#define IPU7_NR_OF_CSI2_SRC_PADS	8U
24#define IPU7_CSI2_PAD_SRC		1U
25#define IPU7_NR_OF_CSI2_PADS		(IPU7_NR_OF_CSI2_SINK_PADS + \
26					 IPU7_NR_OF_CSI2_SRC_PADS)
27
28/*
29 * struct ipu7_isys_csi2
30 *
31 * @nlanes: number of lanes in the receiver
32 */
33struct ipu7_isys_csi2 {
34	struct ipu7_isys_subdev asd;
35	struct ipu7_isys_csi2_pdata *pdata;
36	struct ipu7_isys *isys;
37	struct ipu7_isys_video av[IPU7_NR_OF_CSI2_SRC_PADS];
38
39	void __iomem *base;
40	u32 receiver_errors;
41	u32 legacy_irq_mask;
42	unsigned int nlanes;
43	unsigned int port;
44	unsigned int phy_mode;
45	unsigned int stream_count;
46};
47
48#define ipu7_isys_subdev_to_csi2(__sd)			\
49	container_of(__sd, struct ipu7_isys_csi2, asd)
50
51#define to_ipu7_isys_csi2(__asd) container_of(__asd, struct ipu7_isys_csi2, asd)
52
53s64 ipu7_isys_csi2_get_link_freq(struct ipu7_isys_csi2 *csi2);
54int ipu7_isys_csi2_init(struct ipu7_isys_csi2 *csi2, struct ipu7_isys *isys,
55			void __iomem *base, unsigned int index);
56void ipu7_isys_csi2_cleanup(struct ipu7_isys_csi2 *csi2);
57void ipu7_isys_csi2_sof_event_by_stream(struct ipu7_isys_stream *stream);
58void ipu7_isys_csi2_eof_event_by_stream(struct ipu7_isys_stream *stream);
59int ipu7_isys_csi2_get_remote_desc(u32 source_stream,
60				   struct ipu7_isys_csi2 *csi2,
61				   struct media_entity *source_entity,
62				   struct v4l2_mbus_frame_desc_entry *entry,
63				   int *nr_queues);
64#endif /* IPU7_ISYS_CSI2_H */