1 files changed, 160 insertions, 0 deletions
diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.h b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.h
new file mode 100644
index 000000000000..001c8bde006c
--- /dev/null
+++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.h
@@ -0,0 +1,160 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 NextThing Co
+ * Copyright (C) 2016-2019 Bootlin
+ *
+ * Author: Maxime Ripard <maxime.ripard@bootlin.com>
+ */
+
+#ifndef _SUN4I_CSI_H_
+#define _SUN4I_CSI_H_
+
+#include <media/media-device.h>
+#include <media/v4l2-async.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/videobuf2-core.h>
+
+#define CSI_EN_REG			0x00
+
+#define CSI_CFG_REG			0x04
+#define CSI_CFG_INPUT_FMT(fmt)			((fmt) << 20)
+#define CSI_CFG_OUTPUT_FMT(fmt)			((fmt) << 16)
+#define CSI_CFG_YUV_DATA_SEQ(seq)		((seq) << 8)
+#define CSI_CFG_VSYNC_POL(pol)			((pol) << 2)
+#define CSI_CFG_HSYNC_POL(pol)			((pol) << 1)
+#define CSI_CFG_PCLK_POL(pol)			((pol) << 0)
+
+#define CSI_CPT_CTRL_REG		0x08
+#define CSI_CPT_CTRL_VIDEO_START		BIT(1)
+#define CSI_CPT_CTRL_IMAGE_START		BIT(0)
+
+#define CSI_BUF_ADDR_REG(fifo, buf)	(0x10 + (0x8 * (fifo)) + (0x4 * (buf)))
+
+#define CSI_BUF_CTRL_REG		0x28
+#define CSI_BUF_CTRL_DBN			BIT(2)
+#define CSI_BUF_CTRL_DBS			BIT(1)
+#define CSI_BUF_CTRL_DBE			BIT(0)
+
+#define CSI_INT_EN_REG			0x30
+#define CSI_INT_FRM_DONE			BIT(1)
+#define CSI_INT_CPT_DONE			BIT(0)
+
+#define CSI_INT_STA_REG			0x34
+
+#define CSI_WIN_CTRL_W_REG		0x40
+#define CSI_WIN_CTRL_W_ACTIVE(w)		((w) << 16)
+
+#define CSI_WIN_CTRL_H_REG		0x44
+#define CSI_WIN_CTRL_H_ACTIVE(h)		((h) << 16)
+
+#define CSI_BUF_LEN_REG			0x48
+
+#define CSI_MAX_BUFFER		2
+#define CSI_MAX_HEIGHT		8192U
+#define CSI_MAX_WIDTH		8192U
+
+enum csi_input {
+	CSI_INPUT_RAW	= 0,
+	CSI_INPUT_BT656	= 2,
+	CSI_INPUT_YUV	= 3,
+};
+
+enum csi_output_raw {
+	CSI_OUTPUT_RAW_PASSTHROUGH = 0,
+};
+
+enum csi_output_yuv {
+	CSI_OUTPUT_YUV_422_PLANAR	= 0,
+	CSI_OUTPUT_YUV_420_PLANAR	= 1,
+	CSI_OUTPUT_YUV_422_UV		= 4,
+	CSI_OUTPUT_YUV_420_UV		= 5,
+	CSI_OUTPUT_YUV_422_MACRO	= 8,
+	CSI_OUTPUT_YUV_420_MACRO	= 9,
+};
+
+enum csi_yuv_data_seq {
+	CSI_YUV_DATA_SEQ_YUYV	= 0,
+	CSI_YUV_DATA_SEQ_YVYU	= 1,
+	CSI_YUV_DATA_SEQ_UYVY	= 2,
+	CSI_YUV_DATA_SEQ_VYUY	= 3,
+};
+
+enum csi_subdev_pads {
+	CSI_SUBDEV_SINK,
+	CSI_SUBDEV_SOURCE,
+
+	CSI_SUBDEV_PADS,
+};
+
+extern const struct v4l2_subdev_ops sun4i_csi_subdev_ops;
+
+struct sun4i_csi_format {
+	u32			mbus;
+	u32			fourcc;
+	enum csi_input		input;
+	u32			output;
+	unsigned int		num_planes;
+	u8			bpp[3];
+	unsigned int		hsub;
+	unsigned int		vsub;
+};
+
+const struct sun4i_csi_format *sun4i_csi_find_format(const u32 *fourcc,
+						     const u32 *mbus);
+
+struct sun4i_csi {
+	/* Device resources */
+	struct device			*dev;
+
+	void __iomem			*regs;
+	struct clk			*bus_clk;
+	struct clk			*isp_clk;
+	struct clk			*ram_clk;
+	struct reset_control		*rst;
+
+	struct vb2_v4l2_buffer		*current_buf[CSI_MAX_BUFFER];
+
+	struct {
+		size_t			size;
+		void			*vaddr;
+		dma_addr_t		paddr;
+	} scratch;
+
+	struct v4l2_fwnode_bus_parallel	bus;
+
+	/* Main Device */
+	struct v4l2_device		v4l;
+	struct media_device		mdev;
+	struct video_device		vdev;
+	struct media_pad		vdev_pad;
+	struct v4l2_pix_format_mplane	fmt;
+
+	/* Local subdev */
+	struct v4l2_subdev		subdev;
+	struct media_pad		subdev_pads[CSI_SUBDEV_PADS];
+	struct v4l2_mbus_framefmt	subdev_fmt;
+
+	/* V4L2 Async variables */
+	struct v4l2_async_subdev	asd;
+	struct v4l2_async_notifier	notifier;
+	struct v4l2_subdev		*src_subdev;
+	int				src_pad;
+
+	/* V4L2 variables */
+	struct mutex			lock;
+
+	/* Videobuf2 */
+	struct vb2_queue		queue;
+	struct list_head		buf_list;
+	spinlock_t			qlock;
+	unsigned int			sequence;
+};
+
+int sun4i_csi_dma_register(struct sun4i_csi *csi, int irq);
+void sun4i_csi_dma_unregister(struct sun4i_csi *csi);
+
+int sun4i_csi_v4l2_register(struct sun4i_csi *csi);
+
+#endif /* _SUN4I_CSI_H_ */