1 files changed, 120 insertions, 0 deletions
diff --git a/include/media/vsp1.h b/include/media/vsp1.h
new file mode 100644
index 000000000..48f4a5023
--- /dev/null
+++ b/include/media/vsp1.h
@@ -0,0 +1,120 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * vsp1.h  --  R-Car VSP1 API
+ *
+ * Copyright (C) 2015 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+#ifndef __MEDIA_VSP1_H__
+#define __MEDIA_VSP1_H__
+
+#include <linux/scatterlist.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+struct device;
+
+int vsp1_du_init(struct device *dev);
+
+#define VSP1_DU_STATUS_COMPLETE		BIT(0)
+#define VSP1_DU_STATUS_WRITEBACK	BIT(1)
+
+/**
+ * struct vsp1_du_lif_config - VSP LIF configuration
+ * @width: output frame width
+ * @height: output frame height
+ * @interlaced: true for interlaced pipelines
+ * @callback: frame completion callback function (optional). When a callback
+ *	      is provided, the VSP driver guarantees that it will be called once
+ *	      and only once for each vsp1_du_atomic_flush() call.
+ * @callback_data: data to be passed to the frame completion callback
+ */
+struct vsp1_du_lif_config {
+	unsigned int width;
+	unsigned int height;
+	bool interlaced;
+
+	void (*callback)(void *data, unsigned int status, u32 crc);
+	void *callback_data;
+};
+
+int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
+		      const struct vsp1_du_lif_config *cfg);
+
+/**
+ * struct vsp1_du_atomic_config - VSP atomic configuration parameters
+ * @pixelformat: plane pixel format (V4L2 4CC)
+ * @pitch: line pitch in bytes for the first plane
+ * @mem: DMA memory address for each plane of the frame buffer
+ * @src: source rectangle in the frame buffer (integer coordinates)
+ * @dst: destination rectangle on the display (integer coordinates)
+ * @alpha: alpha value (0: fully transparent, 255: fully opaque)
+ * @zpos: Z position of the plane (from 0 to number of planes minus 1)
+ * @premult: true for premultiplied alpha
+ */
+struct vsp1_du_atomic_config {
+	u32 pixelformat;
+	unsigned int pitch;
+	dma_addr_t mem[3];
+	struct v4l2_rect src;
+	struct v4l2_rect dst;
+	unsigned int alpha;
+	unsigned int zpos;
+	bool premult;
+};
+
+/**
+ * enum vsp1_du_crc_source - Source used for CRC calculation
+ * @VSP1_DU_CRC_NONE: CRC calculation disabled
+ * @VSP1_DU_CRC_PLANE: Perform CRC calculation on an input plane
+ * @VSP1_DU_CRC_OUTPUT: Perform CRC calculation on the composed output
+ */
+enum vsp1_du_crc_source {
+	VSP1_DU_CRC_NONE,
+	VSP1_DU_CRC_PLANE,
+	VSP1_DU_CRC_OUTPUT,
+};
+
+/**
+ * struct vsp1_du_crc_config - VSP CRC computation configuration parameters
+ * @source: source for CRC calculation
+ * @index: index of the CRC source plane (when source is set to plane)
+ */
+struct vsp1_du_crc_config {
+	enum vsp1_du_crc_source source;
+	unsigned int index;
+};
+
+/**
+ * struct vsp1_du_writeback_config - VSP writeback configuration parameters
+ * @pixelformat: plane pixel format (V4L2 4CC)
+ * @pitch: line pitch in bytes for the first plane
+ * @mem: DMA memory address for each plane of the frame buffer
+ */
+struct vsp1_du_writeback_config {
+	u32 pixelformat;
+	unsigned int pitch;
+	dma_addr_t mem[3];
+};
+
+/**
+ * struct vsp1_du_atomic_pipe_config - VSP atomic pipe configuration parameters
+ * @crc: CRC computation configuration
+ * @writeback: writeback configuration
+ */
+struct vsp1_du_atomic_pipe_config {
+	struct vsp1_du_crc_config crc;
+	struct vsp1_du_writeback_config writeback;
+};
+
+void vsp1_du_atomic_begin(struct device *dev, unsigned int pipe_index);
+int vsp1_du_atomic_update(struct device *dev, unsigned int pipe_index,
+			  unsigned int rpf,
+			  const struct vsp1_du_atomic_config *cfg);
+void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index,
+			  const struct vsp1_du_atomic_pipe_config *cfg);
+int vsp1_du_map_sg(struct device *dev, struct sg_table *sgt);
+void vsp1_du_unmap_sg(struct device *dev, struct sg_table *sgt);
+
+#endif /* __MEDIA_VSP1_H__ */