linux/drivers/media/platform/renesas/vsp1/vsp1_wpf.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * vsp1_wpf.c  --  R-Car VSP1 Write Pixel Formatter
 *
 * Copyright (C) 2013-2014 Renesas Electronics Corporation
 *
 * Contact: Laurent Pinchart ([email protected])
 */

#include <linux/device.h>

#include <media/v4l2-subdev.h>

#include "vsp1.h"
#include "vsp1_dl.h"
#include "vsp1_pipe.h"
#include "vsp1_rwpf.h"
#include "vsp1_video.h"

#define WPF_GEN2_MAX_WIDTH …
#define WPF_GEN2_MAX_HEIGHT …
#define WPF_GEN3_MAX_WIDTH …
#define WPF_GEN3_MAX_HEIGHT …

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

static inline void vsp1_wpf_write(struct vsp1_rwpf *wpf,
				  struct vsp1_dl_body *dlb, u32 reg, u32 data)
{ … }

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

enum wpf_flip_ctrl { … };

static int vsp1_wpf_set_rotation(struct vsp1_rwpf *wpf, unsigned int rotation)
{ … }

static int vsp1_wpf_s_ctrl(struct v4l2_ctrl *ctrl)
{ … }

static const struct v4l2_ctrl_ops vsp1_wpf_ctrl_ops = …;

static int wpf_init_controls(struct vsp1_rwpf *wpf)
{ … }

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

void vsp1_wpf_stop(struct vsp1_rwpf *wpf)
{ … }

static void vsp1_wpf_destroy(struct vsp1_entity *entity)
{ … }

static int wpf_configure_writeback_chain(struct vsp1_rwpf *wpf,
					 struct vsp1_dl_list *dl)
{ … }

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

static void wpf_configure_partition(struct vsp1_entity *entity,
				    struct vsp1_pipeline *pipe,
				    const struct vsp1_partition *partition,
				    struct vsp1_dl_list *dl,
				    struct vsp1_dl_body *dlb)
{ … }

static unsigned int wpf_max_width(struct vsp1_entity *entity,
				  struct v4l2_subdev_state *state,
				  struct vsp1_pipeline *pipe)
{ … }

static void wpf_partition(struct vsp1_entity *entity,
			  struct v4l2_subdev_state *state,
			  struct vsp1_pipeline *pipe,
			  struct vsp1_partition *partition,
			  unsigned int partition_idx,
			  struct v4l2_rect *window)
{ … }

static const struct vsp1_entity_operations wpf_entity_ops = …;

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

struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index)
{ … }