stats: Add support for the AEWB statistics engine

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/isp/stats-priv.h b/isp/stats-priv.h
new file mode 100644
index 0000000..c3f084c
--- /dev/null
+++ b/isp/stats-priv.h
@@ -0,0 +1,74 @@
+/*
+ * OMAP3 ISP library - OMAP3 ISP statistics private header
+ *
+ * Copyright (C) 2010-2012 Ideas on board SPRL
+ *
+ * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __OMAP3ISP_STATS_PRIV_H
+#define __OMAP3ISP_STATS_PRIV_H
+
+#include <stdint.h>
+
+#include <linux/omap3isp.h>
+#include <linux/v4l2-mediabus.h>
+#include <linux/videodev2.h>
+
+#include "stats.h"
+
+/*
+ * struct omap3_isp_aewb - OMAP3 ISP AEWB statistics engine
+ * @entity: Automatic Exposure & White Balance entity
+ * @size: buffer size
+ * @buffer: buffer memory
+ * @rect: AEWB region of interest
+ * @win_x: horizontal coordinate of the left-most window
+ * @win_y: vertical coordinate of the top-most window
+ * @win_n_x: horizontal number of windows
+ * @win_n_y: vertical number of windows
+ * @win_w: window width
+ * @win_h: window height
+ * @win_inc_x: window horizontal increment
+ * @win_inc_y: window vertical increment
+ * @enabled: statistics engine enabled
+ */
+struct omap3_isp_aewb {
+	struct media_entity *entity;
+	unsigned int size;
+	void *buffer;
+
+	unsigned int win_x;
+	unsigned int win_y;
+	unsigned int win_n_x;
+	unsigned int win_n_y;
+	unsigned int win_w;
+	unsigned int win_h;
+	unsigned int win_inc_x;
+	unsigned int win_inc_y;
+
+	unsigned int saturation;
+
+	bool enabled;
+};
+
+int omap3_isp_stats_start(struct omap3_isp_device *isp);
+void omap3_isp_stats_stop(struct omap3_isp_device *isp);
+int omap3_isp_stats_init(struct omap3_isp_device *isp);
+void omap3_isp_stats_cleanup(struct omap3_isp_device *isp);
+
+#endif