Added missing tegra files.HEADmaster

1 files changed, 225 insertions, 0 deletions

diff --git a/drivers/media/video/soc_camera_platform.c b/drivers/media/video/soc_camera_platform.c
new file mode 100644
index 00000000000..8069cd6bc5e
--- /dev/null
+++ b/drivers/media/video/soc_camera_platform.c
@@ -0,0 +1,225 @@
+/*
+ * Generic Platform Camera Driver
+ *
+ * Copyright (C) 2008 Magnus Damm
+ * Based on mt9m001 driver,
+ * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-subdev.h>
+#include <media/soc_camera.h>
+#include <media/soc_camera_platform.h>
+
+struct soc_camera_platform_priv {
+        struct v4l2_subdev subdev;
+};
+
+static struct soc_camera_platform_priv *get_priv(struct platform_device *pdev)
+{
+        struct v4l2_subdev *subdev = platform_get_drvdata(pdev);
+        return container_of(subdev, struct soc_camera_platform_priv, subdev);
+}
+
+static struct soc_camera_platform_info *get_info(struct soc_camera_device *icd)
+{
+        struct platform_device *pdev =
+                to_platform_device(to_soc_camera_control(icd));
+        return pdev->dev.platform_data;
+}
+
+static int soc_camera_platform_s_stream(struct v4l2_subdev *sd, int enable)
+{
+        struct soc_camera_platform_info *p = v4l2_get_subdevdata(sd);
+        return p->set_capture(p, enable);
+}
+
+static int soc_camera_platform_set_bus_param(struct soc_camera_device *icd,
+                                             unsigned long flags)
+{
+        return 0;
+}
+
+static unsigned long
+soc_camera_platform_query_bus_param(struct soc_camera_device *icd)
+{
+        struct soc_camera_platform_info *p = get_info(icd);
+        return p->bus_param;
+}
+
+static int soc_camera_platform_fill_fmt(struct v4l2_subdev *sd,
+                                        struct v4l2_mbus_framefmt *mf)
+{
+        struct soc_camera_platform_info *p = v4l2_get_subdevdata(sd);
+
+        mf->width       = p->format.width;
+        mf->height      = p->format.height;
+        mf->code        = p->format.code;
+        mf->colorspace  = p->format.colorspace;
+        mf->field       = p->format.field;
+
+        return 0;
+}
+
+static struct v4l2_subdev_core_ops platform_subdev_core_ops;
+
+static int soc_camera_platform_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
+                                        enum v4l2_mbus_pixelcode *code)
+{
+        struct soc_camera_platform_info *p = v4l2_get_subdevdata(sd);
+
+        if (index)
+                return -EINVAL;
+
+        *code = p->format.code;
+        return 0;
+}
+
+static int soc_camera_platform_g_crop(struct v4l2_subdev *sd,
+                                      struct v4l2_crop *a)
+{
+        struct soc_camera_platform_info *p = v4l2_get_subdevdata(sd);
+
+        a->c.left       = 0;
+        a->c.top        = 0;
+        a->c.width      = p->format.width;
+        a->c.height     = p->format.height;
+        a->type         = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+        return 0;
+}
+
+static int soc_camera_platform_cropcap(struct v4l2_subdev *sd,
+                                       struct v4l2_cropcap *a)
+{
+        struct soc_camera_platform_info *p = v4l2_get_subdevdata(sd);
+
+        a->bounds.left                  = 0;
+        a->bounds.top                   = 0;
+        a->bounds.width                 = p->format.width;
+        a->bounds.height                = p->format.height;
+        a->defrect                      = a->bounds;
+        a->type                         = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+        a->pixelaspect.numerator        = 1;
+        a->pixelaspect.denominator      = 1;
+
+        return 0;
+}
+
+static struct v4l2_subdev_video_ops platform_subdev_video_ops = {
+        .s_stream       = soc_camera_platform_s_stream,
+        .enum_mbus_fmt  = soc_camera_platform_enum_fmt,
+        .cropcap        = soc_camera_platform_cropcap,
+        .g_crop         = soc_camera_platform_g_crop,
+        .try_mbus_fmt   = soc_camera_platform_fill_fmt,
+        .g_mbus_fmt     = soc_camera_platform_fill_fmt,
+        .s_mbus_fmt     = soc_camera_platform_fill_fmt,
+};
+
+static struct v4l2_subdev_ops platform_subdev_ops = {
+        .core   = &platform_subdev_core_ops,
+        .video  = &platform_subdev_video_ops,
+};
+
+static struct soc_camera_ops soc_camera_platform_ops = {
+        .set_bus_param          = soc_camera_platform_set_bus_param,
+        .query_bus_param        = soc_camera_platform_query_bus_param,
+};
+
+static int soc_camera_platform_probe(struct platform_device *pdev)
+{
+        struct soc_camera_host *ici;
+        struct soc_camera_platform_priv *priv;
+        struct soc_camera_platform_info *p = pdev->dev.platform_data;
+        struct soc_camera_device *icd;
+        int ret;
+
+        if (!p)
+                return -EINVAL;
+
+        if (!p->icd) {
+                dev_err(&pdev->dev,
+                        "Platform has not set soc_camera_device pointer!\n");
+                return -EINVAL;
+        }
+
+        priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+        if (!priv)
+                return -ENOMEM;
+
+        icd = p->icd;
+
+        /* soc-camera convention: control's drvdata points to the subdev */
+        platform_set_drvdata(pdev, &priv->subdev);
+        /* Set the control device reference */
+        icd->control = &pdev->dev;
+
+        icd->ops = &soc_camera_platform_ops;
+
+        ici = to_soc_camera_host(icd->parent);
+
+        v4l2_subdev_init(&priv->subdev, &platform_subdev_ops);
+        v4l2_set_subdevdata(&priv->subdev, p);
+        strncpy(priv->subdev.name, dev_name(&pdev->dev), V4L2_SUBDEV_NAME_SIZE);
+
+        ret = v4l2_device_register_subdev(&ici->v4l2_dev, &priv->subdev);
+        if (ret)
+                goto evdrs;
+
+        return ret;
+
+evdrs:
+        icd->ops = NULL;
+        platform_set_drvdata(pdev, NULL);
+        kfree(priv);
+        return ret;
+}
+
+static int soc_camera_platform_remove(struct platform_device *pdev)
+{
+        struct soc_camera_platform_priv *priv = get_priv(pdev);
+        struct soc_camera_platform_info *p = pdev->dev.platform_data;
+        struct soc_camera_device *icd = p->icd;
+
+        v4l2_device_unregister_subdev(&priv->subdev);
+        icd->ops = NULL;
+        platform_set_drvdata(pdev, NULL);
+        kfree(priv);
+        return 0;
+}
+
+static struct platform_driver soc_camera_platform_driver = {
+        .driver         = {
+                .name   = "soc_camera_platform",
+                .owner  = THIS_MODULE,
+        },
+        .probe          = soc_camera_platform_probe,
+        .remove         = soc_camera_platform_remove,
+};
+
+static int __init soc_camera_platform_module_init(void)
+{
+        return platform_driver_register(&soc_camera_platform_driver);
+}
+
+static void __exit soc_camera_platform_module_exit(void)
+{
+        platform_driver_unregister(&soc_camera_platform_driver);
+}
+
+module_init(soc_camera_platform_module_init);
+module_exit(soc_camera_platform_module_exit);
+
+MODULE_DESCRIPTION("SoC Camera Platform driver");
+MODULE_AUTHOR("Magnus Damm");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:soc_camera_platform");