fimc-mdevice.h

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/*
 * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef FIMC_MDEVICE_H_
#define FIMC_MDEVICE_H_

#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
#include <media/media-device.h>
#include <media/media-entity.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>

#include "fimc-core.h"
#include "fimc-lite.h"
#include "mipi-csis.h"

/* Group IDs of sensor, MIPI-CSIS, FIMC-LITE and the writeback subdevs. */
#define SENSOR_GROUP_ID     (1 << 8)
#define CSIS_GROUP_ID       (1 << 9)
#define WRITEBACK_GROUP_ID  (1 << 10)
#define FIMC_GROUP_ID       (1 << 11)
#define FLITE_GROUP_ID      (1 << 12)

#define FIMC_MAX_SENSORS    8
#define FIMC_MAX_CAMCLKS    2

struct fimc_csis_info {
    struct v4l2_subdev *sd;
    int id;
};

struct fimc_camclk_info {
    struct clk *clock;
    int use_count;
    unsigned long frequency;
};

struct fimc_sensor_info {
    struct s5p_fimc_isp_info pdata;
    struct v4l2_subdev *subdev;
    struct fimc_dev *host;
};

struct fimc_md {
    struct fimc_csis_info csis[CSIS_MAX_ENTITIES];
    struct fimc_sensor_info sensor[FIMC_MAX_SENSORS];
    int num_sensors;
    struct fimc_camclk_info camclk[FIMC_MAX_CAMCLKS];
    struct fimc_lite *fimc_lite[FIMC_LITE_MAX_DEVS];
    struct fimc_dev *fimc[FIMC_MAX_DEVS];
    struct media_device media_dev;
    struct v4l2_device v4l2_dev;
    struct platform_device *pdev;
    bool user_subdev_api;
    spinlock_t slock;
};

#define is_subdev_pad(pad) (pad == NULL || \
    media_entity_type(pad->entity) == MEDIA_ENT_T_V4L2_SUBDEV)

#define me_subtype(me) \
    ((me->type) & (MEDIA_ENT_TYPE_MASK | MEDIA_ENT_SUBTYPE_MASK))

#define subdev_has_devnode(__sd) (__sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE)

static inline struct fimc_md *entity_to_fimc_mdev(struct media_entity *me)
{
    return me->parent == NULL ? NULL :
        container_of(me->parent, struct fimc_md, media_dev);
}

static inline void fimc_md_graph_lock(struct fimc_dev *fimc)
{
    mutex_lock(&fimc->vid_cap.vfd.entity.parent->graph_mutex);
}

static inline void fimc_md_graph_unlock(struct fimc_dev *fimc)
{
    mutex_unlock(&fimc->vid_cap.vfd.entity.parent->graph_mutex);
}

int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on);

#endif