1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/staging/media/starfive/camss/stf-video.h b/drivers/staging/media/starfive/camss/stf-video.h
new file mode 100644
index 000000000000..8052b77e3ad8
--- /dev/null
+++ b/drivers/staging/media/starfive/camss/stf-video.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * stf_video.h
+ *
+ * StarFive Camera Subsystem - V4L2 device node
+ *
+ * Copyright (C) 2021-2023 StarFive Technology Co., Ltd.
+ */
+
+#ifndef STF_VIDEO_H
+#define STF_VIDEO_H
+
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-dev.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-v4l2.h>
+
+#define STFCAMSS_FRAME_MIN_WIDTH		64
+#define STFCAMSS_FRAME_MAX_WIDTH		1920
+#define STFCAMSS_FRAME_MIN_HEIGHT		64
+#define STFCAMSS_FRAME_MAX_HEIGHT		1080
+#define STFCAMSS_FRAME_WIDTH_ALIGN_8		8
+#define STFCAMSS_FRAME_WIDTH_ALIGN_128		128
+#define STFCAMSS_MIN_BUFFERS			2
+
+#define STFCAMSS_MAX_ENTITY_NAME_LEN		27
+
+enum stf_v_line_id {
+	STF_V_LINE_WR = 0,
+	STF_V_LINE_ISP,
+	STF_V_LINE_MAX,
+};
+
+enum stf_capture_type {
+	STF_CAPTURE_RAW = 0,
+	STF_CAPTURE_YUV,
+	STF_CAPTURE_NUM,
+};
+
+struct stfcamss_buffer {
+	struct vb2_v4l2_buffer vb;
+	dma_addr_t addr[2];
+	struct list_head queue;
+};
+
+struct fract {
+	u8 numerator;
+	u8 denominator;
+};
+
+/*
+ * struct stfcamss_format_info - ISP media bus format information
+ * @code: V4L2 media bus format code
+ * @pixelformat: V4L2 pixel format FCC identifier
+ * @planes: Number of planes
+ * @vsub: Vertical subsampling (for each plane)
+ * @bpp: Bits per pixel when stored in memory (for each plane)
+ */
+struct stfcamss_format_info {
+	u32 code;
+	u32 pixelformat;
+	u8 planes;
+	u8 vsub[3];
+	u8 bpp;
+};
+
+struct stfcamss_video {
+	struct stfcamss *stfcamss;
+	struct vb2_queue vb2_q;
+	struct video_device vdev;
+	struct media_pad pad;
+	struct v4l2_format active_fmt;
+	enum v4l2_buf_type type;
+	const struct stfcamss_video_ops *ops;
+	struct mutex lock;	 /* serialize device access */
+	struct mutex q_lock;	 /* protects the queue */
+	unsigned int bpl_alignment;
+	const struct stfcamss_format_info *formats;
+	unsigned int nformats;
+	struct v4l2_subdev *source_subdev;
+};
+
+struct stfcamss_video_ops {
+	int (*queue_buffer)(struct stfcamss_video *video,
+			    struct stfcamss_buffer *buf);
+	int (*flush_buffers)(struct stfcamss_video *video,
+			     enum vb2_buffer_state state);
+	void (*start_streaming)(struct stfcamss_video *video);
+	void (*stop_streaming)(struct stfcamss_video *video);
+};
+
+int stf_video_register(struct stfcamss_video *video,
+		       struct v4l2_device *v4l2_dev, const char *name);
+
+void stf_video_unregister(struct stfcamss_video *video);
+
+#endif /* STF_VIDEO_H */