root/include/media/soc_camera_platform.h

DEFINITIONS

1. soc_camera_platform_release
2. soc_camera_platform_add
3. soc_camera_platform_del

/*
 * 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_subdev_desc *ssdd =
                (struct soc_camera_subdev_desc *)plink;
        struct soc_camera_platform_info *info = ssdd->drv_priv;
        int ret;

        if (&icd->sdesc->subdev_desc != ssdd)
                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)
{
        const struct soc_camera_subdev_desc *ssdd =
                (const struct soc_camera_subdev_desc *)plink;
        if (&icd->sdesc->subdev_desc != ssdd || !pdev)
                return;

        platform_device_unregister(pdev);
}

#endif /* __SOC_CAMERA_H__ */