Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / platform / soc_camera / soc_scale_crop.h

diff --git a/kernel/drivers/media/platform/soc_camera/soc_scale_crop.h b/kernel/drivers/media/platform/soc_camera/soc_scale_crop.h
new file mode 100644 (file)
index 0000000..184a30d
--- /dev/null
+++ b/kernel/drivers/media/platform/soc_camera/soc_scale_crop.h
@@ -0,0 +1,47 @@
+/*
+ * soc-camera generic scaling-cropping manipulation functions
+ *
+ * Copyright (C) 2013 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef SOC_SCALE_CROP_H
+#define SOC_SCALE_CROP_H
+
+#include <linux/kernel.h>
+
+struct soc_camera_device;
+
+struct v4l2_crop;
+struct v4l2_mbus_framefmt;
+struct v4l2_pix_format;
+struct v4l2_rect;
+struct v4l2_subdev;
+
+static inline unsigned int soc_camera_shift_scale(unsigned int size,
+                               unsigned int shift, unsigned int scale)
+{
+       return DIV_ROUND_CLOSEST(size << shift, scale);
+}
+
+#define soc_camera_calc_scale(in, shift, out) soc_camera_shift_scale(in, shift, out)
+
+int soc_camera_client_g_rect(struct v4l2_subdev *sd, struct v4l2_rect *rect);
+int soc_camera_client_s_crop(struct v4l2_subdev *sd,
+                       struct v4l2_crop *crop, struct v4l2_crop *cam_crop,
+                       struct v4l2_rect *target_rect, struct v4l2_rect *subrect);
+int soc_camera_client_scale(struct soc_camera_device *icd,
+                       struct v4l2_rect *rect, struct v4l2_rect *subrect,
+                       struct v4l2_mbus_framefmt *mf,
+                       unsigned int *width, unsigned int *height,
+                       bool host_can_scale, unsigned int shift);
+void soc_camera_calc_client_output(struct soc_camera_device *icd,
+               struct v4l2_rect *rect, struct v4l2_rect *subrect,
+               const struct v4l2_pix_format *pix, struct v4l2_mbus_framefmt *mf,
+               unsigned int shift);
+
+#endif