1 files changed, 200 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 0000000..bb7a9d4
--- /dev/null
+++ b/drivers/media/video/soc_camera_platform.c
@@ -0,0 +1,200 @@
+/*
+ * 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-common.h>
+#include <media/soc_camera.h>
+#include <media/soc_camera_platform.h>
+
+struct soc_camera_platform_priv {
+	struct soc_camera_platform_info *info;
+	struct soc_camera_device icd;
+	struct soc_camera_data_format format;
+};
+
+static struct soc_camera_platform_info *
+soc_camera_platform_get_info(struct soc_camera_device *icd)
+{
+	struct soc_camera_platform_priv *priv;
+	priv = container_of(icd, struct soc_camera_platform_priv, icd);
+	return priv->info;
+}
+
+static int soc_camera_platform_init(struct soc_camera_device *icd)
+{
+	struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+
+	if (p->power)
+		p->power(1);
+
+	return 0;
+}
+
+static int soc_camera_platform_release(struct soc_camera_device *icd)
+{
+	struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+
+	if (p->power)
+		p->power(0);
+
+	return 0;
+}
+
+static int soc_camera_platform_start_capture(struct soc_camera_device *icd)
+{
+	struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+	return p->set_capture(p, 1);
+}
+
+static int soc_camera_platform_stop_capture(struct soc_camera_device *icd)
+{
+	struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+	return p->set_capture(p, 0);
+}
+
+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 = soc_camera_platform_get_info(icd);
+	return p->bus_param;
+}
+
+static int soc_camera_platform_set_fmt_cap(struct soc_camera_device *icd,
+					   __u32 pixfmt, struct v4l2_rect *rect)
+{
+	return 0;
+}
+
+static int soc_camera_platform_try_fmt_cap(struct soc_camera_device *icd,
+					   struct v4l2_format *f)
+{
+	struct soc_camera_platform_info *p = soc_camera_platform_get_info(icd);
+
+	f->fmt.pix.width = p->format.width;
+	f->fmt.pix.height = p->format.height;
+	return 0;
+}
+
+static int soc_camera_platform_video_probe(struct soc_camera_device *icd)
+{
+	struct soc_camera_platform_priv *priv;
+	priv = container_of(icd, struct soc_camera_platform_priv, icd);
+
+	priv->format.name = priv->info->format_name;
+	priv->format.depth = priv->info->format_depth;
+	priv->format.fourcc = priv->info->format.pixelformat;
+	priv->format.colorspace = priv->info->format.colorspace;
+
+	icd->formats = &priv->format;
+	icd->num_formats = 1;
+
+	return soc_camera_video_start(icd);
+}
+
+static void soc_camera_platform_video_remove(struct soc_camera_device *icd)
+{
+	soc_camera_video_stop(icd);
+}
+
+static struct soc_camera_ops soc_camera_platform_ops = {
+	.owner			= THIS_MODULE,
+	.probe			= soc_camera_platform_video_probe,
+	.remove			= soc_camera_platform_video_remove,
+	.init			= soc_camera_platform_init,
+	.release		= soc_camera_platform_release,
+	.start_capture		= soc_camera_platform_start_capture,
+	.stop_capture		= soc_camera_platform_stop_capture,
+	.set_fmt_cap		= soc_camera_platform_set_fmt_cap,
+	.try_fmt_cap		= soc_camera_platform_try_fmt_cap,
+	.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_platform_priv *priv;
+	struct soc_camera_platform_info *p;
+	struct soc_camera_device *icd;
+	int ret;
+
+	p = pdev->dev.platform_data;
+	if (!p)
+		return -EINVAL;
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->info = p;
+	platform_set_drvdata(pdev, priv);
+
+	icd = &priv->icd;
+	icd->ops	= &soc_camera_platform_ops;
+	icd->control	= &pdev->dev;
+	icd->width_min	= 0;
+	icd->width_max	= priv->info->format.width;
+	icd->height_min	= 0;
+	icd->height_max	= priv->info->format.height;
+	icd->y_skip_top	= 0;
+	icd->iface	= priv->info->iface;
+
+	ret = soc_camera_device_register(icd);
+	if (ret)
+		kfree(priv);
+
+	return ret;
+}
+
+static int soc_camera_platform_remove(struct platform_device *pdev)
+{
+	struct soc_camera_platform_priv *priv = platform_get_drvdata(pdev);
+
+	soc_camera_device_unregister(&priv->icd);
+	kfree(priv);
+	return 0;
+}
+
+static struct platform_driver soc_camera_platform_driver = {
+	.driver 	= {
+		.name	= "soc_camera_platform",
+	},
+	.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");