/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright 2021-2022 Bootlin
 * Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
 */

#ifndef _SUN6I_ISP_H_
#define _SUN6I_ISP_H_

#include <media/v4l2-device.h>
#include <media/videobuf2-v4l2.h>

#include "sun6i_isp_capture.h"
#include "sun6i_isp_params.h"
#include "sun6i_isp_proc.h"

#define SUN6I_ISP_NAME                  "sun6i-isp"
#define SUN6I_ISP_DESCRIPTION           "Allwinner A31 ISP Device"

enum sun6i_isp_port {
        SUN6I_ISP_PORT_CSI0     = 0,
        SUN6I_ISP_PORT_CSI1     = 1,
};

struct sun6i_isp_buffer {
        struct vb2_v4l2_buffer  v4l2_buffer;
        struct list_head        list;
};

struct sun6i_isp_v4l2 {
        struct v4l2_device              v4l2_dev;
        struct media_device             media_dev;
};

struct sun6i_isp_table {
        void            *data;
        dma_addr_t      address;
        unsigned int    size;
};

struct sun6i_isp_tables {
        struct sun6i_isp_table  load;
        struct sun6i_isp_table  save;

        struct sun6i_isp_table  lut;
        struct sun6i_isp_table  drc;
        struct sun6i_isp_table  stats;
};

struct sun6i_isp_device {
        struct device                   *dev;

        struct sun6i_isp_tables         tables;

        struct sun6i_isp_v4l2           v4l2;
        struct sun6i_isp_proc           proc;
        struct sun6i_isp_capture        capture;
        struct sun6i_isp_params         params;

        struct regmap                   *regmap;
        struct clk                      *clock_mod;
        struct clk                      *clock_ram;
        struct reset_control            *reset;

        spinlock_t                      state_lock; /* State helpers lock. */
};

struct sun6i_isp_variant {
        unsigned int    table_load_save_size;
        unsigned int    table_lut_size;
        unsigned int    table_drc_size;
        unsigned int    table_stats_size;
};

/* Helpers */

u32 sun6i_isp_load_read(struct sun6i_isp_device *isp_dev, u32 offset);
void sun6i_isp_load_write(struct sun6i_isp_device *isp_dev, u32 offset,
                          u32 value);
u32 sun6i_isp_address_value(dma_addr_t address);

/* State */

void sun6i_isp_state_update(struct sun6i_isp_device *isp_dev, bool ready_hold);

/* Tables */

void sun6i_isp_tables_configure(struct sun6i_isp_device *isp_dev);

#endif