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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2013--2024 Intel Corporation */
#ifndef IPU6_ISYS_VIDEO_H
#define IPU6_ISYS_VIDEO_H
#include <linux/atomic.h>
#include <linux/completion.h>
#include <linux/container_of.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <media/media-entity.h>
#include <media/v4l2-dev.h>
#include "ipu6-isys-queue.h"
#define IPU6_ISYS_OUTPUT_PINS 11
#define IPU6_ISYS_MAX_PARALLEL_SOF 2
struct file;
struct ipu6_isys;
struct ipu6_isys_csi2;
struct ipu6_isys_subdev;
struct ipu6_isys_pixelformat {
u32 pixelformat;
u32 bpp;
u32 bpp_packed;
u32 code;
u32 css_pixelformat;
bool is_meta;
};
struct sequence_info {
unsigned int sequence;
u64 timestamp;
};
struct output_pin_data {
void (*pin_ready)(struct ipu6_isys_stream *stream,
struct ipu6_fw_isys_resp_info_abi *info);
struct ipu6_isys_queue *aq;
};
/*
* Align with firmware stream. Each stream represents a CSI virtual channel.
* May map to multiple video devices
*/
struct ipu6_isys_stream {
struct mutex mutex;
struct media_entity *source_entity;
atomic_t sequence;
unsigned int seq_index;
struct sequence_info seq[IPU6_ISYS_MAX_PARALLEL_SOF];
int stream_source;
int stream_handle;
unsigned int nr_output_pins;
struct ipu6_isys_subdev *asd;
int nr_queues; /* Number of capture queues */
int nr_streaming;
int streaming; /* Has streaming been really started? */
struct list_head queues;
struct completion stream_open_completion;
struct completion stream_close_completion;
struct completion stream_start_completion;
struct completion stream_stop_completion;
struct ipu6_isys *isys;
struct output_pin_data output_pins[IPU6_ISYS_OUTPUT_PINS];
int error;
u8 vc;
};
struct video_stream_watermark {
u32 width;
u32 height;
u32 hblank;
u32 frame_rate;
u64 pixel_rate;
u64 stream_data_rate;
u16 sram_gran_shift;
u16 sram_gran_size;
struct list_head stream_node;
};
struct ipu6_isys_video {
struct ipu6_isys_queue aq;
/* Serialise access to other fields in the struct. */
struct mutex mutex;
struct media_pad pad;
struct video_device vdev;
struct v4l2_pix_format pix_fmt;
struct v4l2_meta_format meta_fmt;
struct ipu6_isys *isys;
struct ipu6_isys_csi2 *csi2;
struct ipu6_isys_stream *stream;
unsigned int streaming;
struct video_stream_watermark watermark;
u32 source_stream;
u8 vc;
u8 dt;
};
#define ipu6_isys_queue_to_video(__aq) \
container_of(__aq, struct ipu6_isys_video, aq)
extern const struct ipu6_isys_pixelformat ipu6_isys_pfmts[];
extern const struct ipu6_isys_pixelformat ipu6_isys_pfmts_packed[];
const struct ipu6_isys_pixelformat *
ipu6_isys_get_isys_format(u32 pixelformat, u32 code);
int ipu6_isys_video_prepare_stream(struct ipu6_isys_video *av,
struct media_entity *source_entity,
int nr_queues);
int ipu6_isys_video_set_streaming(struct ipu6_isys_video *av, int state,
struct ipu6_isys_buffer_list *bl);
int ipu6_isys_fw_open(struct ipu6_isys *isys);
void ipu6_isys_fw_close(struct ipu6_isys *isys);
int ipu6_isys_setup_video(struct ipu6_isys_video *av,
struct media_entity **source_entity, int *nr_queues);
int ipu6_isys_video_init(struct ipu6_isys_video *av);
void ipu6_isys_video_cleanup(struct ipu6_isys_video *av);
void ipu6_isys_put_stream(struct ipu6_isys_stream *stream);
struct ipu6_isys_stream *
ipu6_isys_query_stream_by_handle(struct ipu6_isys *isys, u8 stream_handle);
struct ipu6_isys_stream *
ipu6_isys_query_stream_by_source(struct ipu6_isys *isys, int source, u8 vc);
void ipu6_isys_configure_stream_watermark(struct ipu6_isys_video *av,
bool state);
void ipu6_isys_update_stream_watermark(struct ipu6_isys_video *av, bool state);
u32 ipu6_isys_get_format(struct ipu6_isys_video *av);
u32 ipu6_isys_get_data_size(struct ipu6_isys_video *av);
u32 ipu6_isys_get_bytes_per_line(struct ipu6_isys_video *av);
u32 ipu6_isys_get_frame_width(struct ipu6_isys_video *av);
u32 ipu6_isys_get_frame_height(struct ipu6_isys_video *av);
#endif /* IPU6_ISYS_VIDEO_H */
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