ipu7-isys-video.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * Copyright (C) 2013 - 2025 Intel Corporation
  4 */
  5
  6#ifndef IPU7_ISYS_VIDEO_H
  7#define IPU7_ISYS_VIDEO_H
  8
  9#include <linux/atomic.h>
 10#include <linux/completion.h>
 11#include <linux/container_of.h>
 12#include <linux/list.h>
 13#include <linux/mutex.h>
 14
 15#include <media/media-entity.h>
 16#include <media/v4l2-dev.h>
 17
 18#include "ipu7-isys-queue.h"
 19
 20#define IPU_INSYS_OUTPUT_PINS		11U
 21#define IPU_ISYS_MAX_PARALLEL_SOF	2U
 22
 23struct file;
 24struct ipu7_isys;
 25struct ipu7_isys_csi2;
 26struct ipu7_insys_stream_cfg;
 27struct ipu7_isys_subdev;
 28
 29struct ipu7_isys_pixelformat {
 30	u32 pixelformat;
 31	u32 bpp;
 32	u32 bpp_packed;
 33	u32 code;
 34	u32 css_pixelformat;
 35};
 36
 37struct sequence_info {
 38	unsigned int sequence;
 39	u64 timestamp;
 40};
 41
 42struct output_pin_data {
 43	void (*pin_ready)(struct ipu7_isys_stream *stream,
 44			  struct ipu7_insys_resp *info);
 45	struct ipu7_isys_queue *aq;
 46};
 47
 48/*
 49 * Align with firmware stream. Each stream represents a CSI virtual channel.
 50 * May map to multiple video devices
 51 */
 52struct ipu7_isys_stream {
 53	struct mutex mutex;
 54	struct media_entity *source_entity;
 55	atomic_t sequence;
 56	atomic_t buf_id;
 57	unsigned int seq_index;
 58	struct sequence_info seq[IPU_ISYS_MAX_PARALLEL_SOF];
 59	int stream_source;
 60	int stream_handle;
 61	unsigned int nr_output_pins;
 62	struct ipu7_isys_subdev *asd;
 63
 64	int nr_queues;  /* Number of capture queues */
 65	int nr_streaming;
 66	int streaming;
 67	struct list_head queues;
 68	struct completion stream_open_completion;
 69	struct completion stream_close_completion;
 70	struct completion stream_start_completion;
 71	struct completion stream_stop_completion;
 72	struct ipu7_isys *isys;
 73
 74	struct output_pin_data output_pins[IPU_INSYS_OUTPUT_PINS];
 75	int error;
 76	u8 vc;
 77};
 78
 79struct ipu7_isys_video {
 80	struct ipu7_isys_queue aq;
 81	/* Serialise access to other fields in the struct. */
 82	struct mutex mutex;
 83	struct media_pad pad;
 84	struct video_device vdev;
 85	struct v4l2_pix_format pix_fmt;
 86	struct ipu7_isys *isys;
 87	struct ipu7_isys_csi2 *csi2;
 88	struct ipu7_isys_stream *stream;
 89	unsigned int streaming;
 90	u8 vc;
 91	u8 dt;
 92};
 93
 94#define ipu7_isys_queue_to_video(__aq)			\
 95	container_of(__aq, struct ipu7_isys_video, aq)
 96
 97extern const struct ipu7_isys_pixelformat ipu7_isys_pfmts[];
 98
 99const struct ipu7_isys_pixelformat *ipu7_isys_get_isys_format(u32 pixelformat);
100int ipu7_isys_video_prepare_stream(struct ipu7_isys_video *av,
101				   struct media_entity *source_entity,
102				   int nr_queues);
103int ipu7_isys_video_set_streaming(struct ipu7_isys_video *av, int state,
104				  struct ipu7_isys_buffer_list *bl);
105int ipu7_isys_fw_open(struct ipu7_isys *isys);
106void ipu7_isys_fw_close(struct ipu7_isys *isys);
107int ipu7_isys_setup_video(struct ipu7_isys_video *av,
108			  struct media_entity **source_entity, int *nr_queues);
109int ipu7_isys_video_init(struct ipu7_isys_video *av);
110void ipu7_isys_video_cleanup(struct ipu7_isys_video *av);
111void ipu7_isys_put_stream(struct ipu7_isys_stream *stream);
112struct ipu7_isys_stream *
113ipu7_isys_query_stream_by_handle(struct ipu7_isys *isys,
114				 u8 stream_handle);
115struct ipu7_isys_stream *
116ipu7_isys_query_stream_by_source(struct ipu7_isys *isys, int source, u8 vc);
117#endif /* IPU7_ISYS_VIDEO_H */