linux/drivers/media/platform/renesas/vsp1/vsp1_lut.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * vsp1_lut.c  --  R-Car VSP1 Look-Up Table
 *
 * Copyright (C) 2013 Renesas Corporation
 *
 * Contact: Laurent Pinchart ([email protected])
 */

#include <linux/device.h>
#include <linux/gfp.h>

#include <media/v4l2-subdev.h>

#include "vsp1.h"
#include "vsp1_dl.h"
#include "vsp1_lut.h"

#define LUT_MIN_SIZE …
#define LUT_MAX_SIZE …

#define LUT_SIZE …

/* -----------------------------------------------------------------------------
 * Device Access
 */

static inline void vsp1_lut_write(struct vsp1_lut *lut,
				  struct vsp1_dl_body *dlb, u32 reg, u32 data)
{ … }

/* -----------------------------------------------------------------------------
 * Controls
 */

#define V4L2_CID_VSP1_LUT_TABLE …

static int lut_set_table(struct vsp1_lut *lut, struct v4l2_ctrl *ctrl)
{ … }

static int lut_s_ctrl(struct v4l2_ctrl *ctrl)
{ … }

static const struct v4l2_ctrl_ops lut_ctrl_ops = …;

static const struct v4l2_ctrl_config lut_table_control = …;

/* -----------------------------------------------------------------------------
 * V4L2 Subdevice Pad Operations
 */

static const unsigned int lut_codes[] = …;

static int lut_enum_mbus_code(struct v4l2_subdev *subdev,
			      struct v4l2_subdev_state *sd_state,
			      struct v4l2_subdev_mbus_code_enum *code)
{ … }

static int lut_enum_frame_size(struct v4l2_subdev *subdev,
			       struct v4l2_subdev_state *sd_state,
			       struct v4l2_subdev_frame_size_enum *fse)
{ … }

static int lut_set_format(struct v4l2_subdev *subdev,
			  struct v4l2_subdev_state *sd_state,
			  struct v4l2_subdev_format *fmt)
{ … }

/* -----------------------------------------------------------------------------
 * V4L2 Subdevice Operations
 */

static const struct v4l2_subdev_pad_ops lut_pad_ops = …;

static const struct v4l2_subdev_ops lut_ops = …;

/* -----------------------------------------------------------------------------
 * VSP1 Entity Operations
 */

static void lut_configure_stream(struct vsp1_entity *entity,
				 struct v4l2_subdev_state *state,
				 struct vsp1_pipeline *pipe,
				 struct vsp1_dl_list *dl,
				 struct vsp1_dl_body *dlb)
{ … }

static void lut_configure_frame(struct vsp1_entity *entity,
				struct vsp1_pipeline *pipe,
				struct vsp1_dl_list *dl,
				struct vsp1_dl_body *dlb)
{ … }

static void lut_destroy(struct vsp1_entity *entity)
{ … }

static const struct vsp1_entity_operations lut_entity_ops = …;

/* -----------------------------------------------------------------------------
 * Initialization and Cleanup
 */

struct vsp1_lut *vsp1_lut_create(struct vsp1_device *vsp1)
{ … }