/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2013 - 2025 Intel Corporation
 */

#ifndef IPU7_ISYS_QUEUE_H
#define IPU7_ISYS_QUEUE_H

#include <linux/atomic.h>
#include <linux/container_of.h>
#include <linux/list.h>
#include <linux/spinlock_types.h>

#include <media/videobuf2-v4l2.h>

struct device;
struct ipu7_isys_stream;
struct ipu7_insys_resp;
struct ipu7_insys_buffset;

struct ipu7_isys_queue {
        struct vb2_queue vbq;
        struct list_head node;
        struct device *dev;
        spinlock_t lock;
        struct list_head active;
        struct list_head incoming;
        unsigned int fw_output;
};

struct ipu7_isys_buffer {
        struct list_head head;
        atomic_t str2mmio_flag;
};

struct ipu7_isys_video_buffer {
        struct vb2_v4l2_buffer vb_v4l2;
        struct ipu7_isys_buffer ib;
        dma_addr_t dma_addr;
};

#define IPU_ISYS_BUFFER_LIST_FL_INCOMING        BIT(0)
#define IPU_ISYS_BUFFER_LIST_FL_ACTIVE  BIT(1)
#define IPU_ISYS_BUFFER_LIST_FL_SET_STATE       BIT(2)

struct ipu7_isys_buffer_list {
        struct list_head head;
        unsigned int nbufs;
};

#define vb2_queue_to_isys_queue(__vb2)                          \
        container_of(__vb2, struct ipu7_isys_queue, vbq)

#define ipu7_isys_to_isys_video_buffer(__ib)                    \
        container_of(__ib, struct ipu7_isys_video_buffer, ib)

#define vb2_buffer_to_ipu7_isys_video_buffer(__vvb)                     \
        container_of(__vvb, struct ipu7_isys_video_buffer, vb_v4l2)

#define ipu7_isys_buffer_to_vb2_buffer(__ib)                            \
        (&ipu7_isys_to_isys_video_buffer(__ib)->vb_v4l2.vb2_buf)

void ipu7_isys_buffer_list_queue(struct ipu7_isys_buffer_list *bl,
                                 unsigned long op_flags,
                                 enum vb2_buffer_state state);
void ipu7_isys_buffer_to_fw_frame_buff(struct ipu7_insys_buffset *set,
                                       struct ipu7_isys_stream *stream,
                                       struct ipu7_isys_buffer_list *bl);
void ipu7_isys_queue_buf_ready(struct ipu7_isys_stream *stream,
                               struct ipu7_insys_resp *info);
int ipu7_isys_queue_init(struct ipu7_isys_queue *aq);
#endif /* IPU7_ISYS_QUEUE_H */