soc_camera_platform.h

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/*
 * Generic Platform Camera Driver Header
 *
 * Copyright (C) 2008 Magnus Damm
 *
 * 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 __SOC_CAMERA_H__
#define __SOC_CAMERA_H__

#include <linux/videodev2.h>
#include <media/soc_camera.h>
#include <media/v4l2-mediabus.h>

struct device;

struct soc_camera_platform_info {
    const char *format_name;
    unsigned long format_depth;
    struct v4l2_mbus_framefmt format;
    unsigned long mbus_param;
    enum v4l2_mbus_type mbus_type;
    struct soc_camera_device *icd;
    int (*set_capture)(struct soc_camera_platform_info *info, int enable);
};

static inline void soc_camera_platform_release(struct platform_device **pdev)
{
    *pdev = NULL;
}

static inline int soc_camera_platform_add(struct soc_camera_device *icd,
                      struct platform_device **pdev,
                      struct soc_camera_link *plink,
                      void (*release)(struct device *dev),
                      int id)
{
    struct soc_camera_platform_info *info = plink->priv;
    int ret;

    if (icd->link != plink)
        return -ENODEV;

    if (*pdev)
        return -EBUSY;

    *pdev = platform_device_alloc("soc_camera_platform", id);
    if (!*pdev)
        return -ENOMEM;

    info->icd = icd;

    (*pdev)->dev.platform_data = info;
    (*pdev)->dev.release = release;

    ret = platform_device_add(*pdev);
    if (ret < 0) {
        platform_device_put(*pdev);
        *pdev = NULL;
        info->icd = NULL;
    }

    return ret;
}

static inline void soc_camera_platform_del(const struct soc_camera_device *icd,
                       struct platform_device *pdev,
                       const struct soc_camera_link *plink)
{
    if (icd->link != plink || !pdev)
        return;

    platform_device_unregister(pdev);
}

#endif /* __SOC_CAMERA_H__ */