X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fmedia%2Fplatform%2Fexynos4-is%2Fcommon.c;fp=kernel%2Fdrivers%2Fmedia%2Fplatform%2Fexynos4-is%2Fcommon.c;h=0eb34ecb8ee442159c5e02bc116c535bf1d7dc44;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/media/platform/exynos4-is/common.c b/kernel/drivers/media/platform/exynos4-is/common.c
new file mode 100644
index 000000000..0eb34ecb8
--- /dev/null
+++ b/kernel/drivers/media/platform/exynos4-is/common.c
@@ -0,0 +1,53 @@
+/*
+ * Samsung S5P/EXYNOS4 SoC Camera Subsystem driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * 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/module.h>
+#include <media/exynos-fimc.h>
+#include "common.h"
+
+/* Called with the media graph mutex held or entity->stream_count > 0. */
+struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity)
+{
+	struct media_pad *pad = &entity->pads[0];
+	struct v4l2_subdev *sd;
+
+	while (pad->flags & MEDIA_PAD_FL_SINK) {
+		/* source pad */
+		pad = media_entity_remote_pad(pad);
+		if (pad == NULL ||
+		    media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
+			break;
+
+		sd = media_entity_to_v4l2_subdev(pad->entity);
+
+		if (sd->grp_id == GRP_ID_FIMC_IS_SENSOR ||
+		    sd->grp_id == GRP_ID_SENSOR)
+			return sd;
+		/* sink pad */
+		pad = &sd->entity.pads[0];
+	}
+	return NULL;
+}
+EXPORT_SYMBOL(fimc_find_remote_sensor);
+
+void __fimc_vidioc_querycap(struct device *dev, struct v4l2_capability *cap,
+						unsigned int caps)
+{
+	strlcpy(cap->driver, dev->driver->name, sizeof(cap->driver));
+	strlcpy(cap->card, dev->driver->name, sizeof(cap->card));
+	snprintf(cap->bus_info, sizeof(cap->bus_info),
+				"platform:%s", dev_name(dev));
+	cap->device_caps = caps;
+	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+}
+EXPORT_SYMBOL(__fimc_vidioc_querycap);
+
+MODULE_LICENSE("GPL");