431 lines
12 KiB
C
431 lines
12 KiB
C
|
/*
|
||
|
|
* vsp1_entity.c -- R-Car VSP1 Base Entity
|
||
|
|
*
|
||
|
|
* Copyright (C) 2013-2014 Renesas Electronics Corporation
|
||
|
|
*
|
||
|
|
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/device.h>
|
||
|
|
#include <linux/gfp.h>
|
||
|
|
|
||
|
|
#include <media/media-entity.h>
|
||
|
|
#include <media/v4l2-ctrls.h>
|
||
|
|
#include <media/v4l2-subdev.h>
|
||
|
|
|
||
|
|
#include "vsp1.h"
|
||
|
|
#include "vsp1_dl.h"
|
||
|
|
#include "vsp1_entity.h"
|
||
|
|
|
||
|
|
static inline struct vsp1_entity *
|
||
|
|
media_entity_to_vsp1_entity(struct media_entity *entity)
|
||
|
|
{
|
||
|
|
return container_of(entity, struct vsp1_entity, subdev.entity);
|
||
|
|
}
|
||
|
|
|
||
|
|
void vsp1_entity_route_setup(struct vsp1_entity *source,
|
||
|
|
struct vsp1_dl_list *dl)
|
||
|
|
{
|
||
|
|
struct vsp1_entity *sink;
|
||
|
|
|
||
|
|
if (source->route->reg == 0)
|
||
|
|
return;
|
||
|
|
|
||
|
|
sink = media_entity_to_vsp1_entity(source->sink);
|
||
|
|
vsp1_dl_list_write(dl, source->route->reg,
|
||
|
|
sink->route->inputs[source->sink_pad]);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* -----------------------------------------------------------------------------
|
||
|
|
* V4L2 Subdevice Operations
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vsp1_entity_get_pad_config - Get the pad configuration for an entity
|
||
|
|
* @entity: the entity
|
||
|
|
* @cfg: the TRY pad configuration
|
||
|
|
* @which: configuration selector (ACTIVE or TRY)
|
||
|
|
*
|
||
|
|
* When called with which set to V4L2_SUBDEV_FORMAT_ACTIVE the caller must hold
|
||
|
|
* the entity lock to access the returned configuration.
|
||
|
|
*
|
||
|
|
* Return the pad configuration requested by the which argument. The TRY
|
||
|
|
* configuration is passed explicitly to the function through the cfg argument
|
||
|
|
* and simply returned when requested. The ACTIVE configuration comes from the
|
||
|
|
* entity structure.
|
||
|
|
*/
|
||
|
|
struct v4l2_subdev_pad_config *
|
||
|
|
vsp1_entity_get_pad_config(struct vsp1_entity *entity,
|
||
|
|
struct v4l2_subdev_pad_config *cfg,
|
||
|
|
enum v4l2_subdev_format_whence which)
|
||
|
|
{
|
||
|
|
switch (which) {
|
||
|
|
case V4L2_SUBDEV_FORMAT_ACTIVE:
|
||
|
|
return entity->config;
|
||
|
|
case V4L2_SUBDEV_FORMAT_TRY:
|
||
|
|
default:
|
||
|
|
return cfg;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vsp1_entity_get_pad_format - Get a pad format from storage for an entity
|
||
|
|
* @entity: the entity
|
||
|
|
* @cfg: the configuration storage
|
||
|
|
* @pad: the pad number
|
||
|
|
*
|
||
|
|
* Return the format stored in the given configuration for an entity's pad. The
|
||
|
|
* configuration can be an ACTIVE or TRY configuration.
|
||
|
|
*/
|
||
|
|
struct v4l2_mbus_framefmt *
|
||
|
|
vsp1_entity_get_pad_format(struct vsp1_entity *entity,
|
||
|
|
struct v4l2_subdev_pad_config *cfg,
|
||
|
|
unsigned int pad)
|
||
|
|
{
|
||
|
|
return v4l2_subdev_get_try_format(&entity->subdev, cfg, pad);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* vsp1_entity_get_pad_selection - Get a pad selection from storage for entity
|
||
|
|
* @entity: the entity
|
||
|
|
* @cfg: the configuration storage
|
||
|
|
* @pad: the pad number
|
||
|
|
* @target: the selection target
|
||
|
|
*
|
||
|
|
* Return the selection rectangle stored in the given configuration for an
|
||
|
|
* entity's pad. The configuration can be an ACTIVE or TRY configuration. The
|
||
|
|
* selection target can be COMPOSE or CROP.
|
||
|
|
*/
|
||
|
|
struct v4l2_rect *
|
||
|
|
vsp1_entity_get_pad_selection(struct vsp1_entity *entity,
|
||
|
|
struct v4l2_subdev_pad_config *cfg,
|
||
|
|
unsigned int pad, unsigned int target)
|
||
|
|
{
|
||
|
|
switch (target) {
|
||
|
|
case V4L2_SEL_TGT_COMPOSE:
|
||
|
|
return v4l2_subdev_get_try_compose(&entity->subdev, cfg, pad);
|
||
|
|
case V4L2_SEL_TGT_CROP:
|
||
|
|
return v4l2_subdev_get_try_crop(&entity->subdev, cfg, pad);
|
||
|
|
default:
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* vsp1_entity_init_cfg - Initialize formats on all pads
|
||
|
|
* @subdev: V4L2 subdevice
|
||
|
|
* @cfg: V4L2 subdev pad configuration
|
||
|
|
*
|
||
|
|
* Initialize all pad formats with default values in the given pad config. This
|
||
|
|
* function can be used as a handler for the subdev pad::init_cfg operation.
|
||
|
|
*/
|
||
|
|
int vsp1_entity_init_cfg(struct v4l2_subdev *subdev,
|
||
|
|
struct v4l2_subdev_pad_config *cfg)
|
||
|
|
{
|
||
|
|
struct v4l2_subdev_format format;
|
||
|
|
unsigned int pad;
|
||
|
|
|
||
|
|
for (pad = 0; pad < subdev->entity.num_pads - 1; ++pad) {
|
||
|
|
memset(&format, 0, sizeof(format));
|
||
|
|
|
||
|
|
format.pad = pad;
|
||
|
|
format.which = cfg ? V4L2_SUBDEV_FORMAT_TRY
|
||
|
|
: V4L2_SUBDEV_FORMAT_ACTIVE;
|
||
|
|
|
||
|
|
v4l2_subdev_call(subdev, pad, set_fmt, cfg, &format);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* vsp1_subdev_get_pad_format - Subdev pad get_fmt handler
|
||
|
|
* @subdev: V4L2 subdevice
|
||
|
|
* @cfg: V4L2 subdev pad configuration
|
||
|
|
* @fmt: V4L2 subdev format
|
||
|
|
*
|
||
|
|
* This function implements the subdev get_fmt pad operation. It can be used as
|
||
|
|
* a direct drop-in for the operation handler.
|
||
|
|
*/
|
||
|
|
int vsp1_subdev_get_pad_format(struct v4l2_subdev *subdev,
|
||
|
|
struct v4l2_subdev_pad_config *cfg,
|
||
|
|
struct v4l2_subdev_format *fmt)
|
||
|
|
{
|
||
|
|
struct vsp1_entity *entity = to_vsp1_entity(subdev);
|
||
|
|
struct v4l2_subdev_pad_config *config;
|
||
|
|
|
||
|
|
config = vsp1_entity_get_pad_config(entity, cfg, fmt->which);
|
||
|
|
if (!config)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
mutex_lock(&entity->lock);
|
||
|
|
fmt->format = *vsp1_entity_get_pad_format(entity, config, fmt->pad);
|
||
|
|
mutex_unlock(&entity->lock);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* vsp1_subdev_enum_mbus_code - Subdev pad enum_mbus_code handler
|
||
|
|
* @subdev: V4L2 subdevice
|
||
|
|
* @cfg: V4L2 subdev pad configuration
|
||
|
|
* @code: Media bus code enumeration
|
||
|
|
* @codes: Array of supported media bus codes
|
||
|
|
* @ncodes: Number of supported media bus codes
|
||
|
|
*
|
||
|
|
* This function implements the subdev enum_mbus_code pad operation for entities
|
||
|
|
* that do not support format conversion. It enumerates the given supported
|
||
|
|
* media bus codes on the sink pad and reports a source pad format identical to
|
||
|
|
* the sink pad.
|
||
|
|
*/
|
||
|
|
int vsp1_subdev_enum_mbus_code(struct v4l2_subdev *subdev,
|
||
|
|
struct v4l2_subdev_pad_config *cfg,
|
||
|
|
struct v4l2_subdev_mbus_code_enum *code,
|
||
|
|
const unsigned int *codes, unsigned int ncodes)
|
||
|
|
{
|
||
|
|
struct vsp1_entity *entity = to_vsp1_entity(subdev);
|
||
|
|
|
||
|
|
if (code->pad == 0) {
|
||
|
|
if (code->index >= ncodes)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
code->code = codes[code->index];
|
||
|
|
} else {
|
||
|
|
struct v4l2_subdev_pad_config *config;
|
||
|
|
struct v4l2_mbus_framefmt *format;
|
||
|
|
|
||
|
|
/* The entity can't perform format conversion, the sink format
|
||
|
|
* is always identical to the source format.
|
||
|
|
*/
|
||
|
|
if (code->index)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
config = vsp1_entity_get_pad_config(entity, cfg, code->which);
|
||
|
|
if (!config)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
mutex_lock(&entity->lock);
|
||
|
|
format = vsp1_entity_get_pad_format(entity, config, 0);
|
||
|
|
code->code = format->code;
|
||
|
|
mutex_unlock(&entity->lock);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* vsp1_subdev_enum_frame_size - Subdev pad enum_frame_size handler
|
||
|
|
* @subdev: V4L2 subdevice
|
||
|
|
* @cfg: V4L2 subdev pad configuration
|
||
|
|
* @fse: Frame size enumeration
|
||
|
|
* @min_width: Minimum image width
|
||
|
|
* @min_height: Minimum image height
|
||
|
|
* @max_width: Maximum image width
|
||
|
|
* @max_height: Maximum image height
|
||
|
|
*
|
||
|
|
* This function implements the subdev enum_frame_size pad operation for
|
||
|
|
* entities that do not support scaling or cropping. It reports the given
|
||
|
|
* minimum and maximum frame width and height on the sink pad, and a fixed
|
||
|
|
* source pad size identical to the sink pad.
|
||
|
|
*/
|
||
|
|
int vsp1_subdev_enum_frame_size(struct v4l2_subdev *subdev,
|
||
|
|
struct v4l2_subdev_pad_config *cfg,
|
||
|
|
struct v4l2_subdev_frame_size_enum *fse,
|
||
|
|
unsigned int min_width, unsigned int min_height,
|
||
|
|
unsigned int max_width, unsigned int max_height)
|
||
|
|
{
|
||
|
|
struct vsp1_entity *entity = to_vsp1_entity(subdev);
|
||
|
|
struct v4l2_subdev_pad_config *config;
|
||
|
|
struct v4l2_mbus_framefmt *format;
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
config = vsp1_entity_get_pad_config(entity, cfg, fse->which);
|
||
|
|
if (!config)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
format = vsp1_entity_get_pad_format(entity, config, fse->pad);
|
||
|
|
|
||
|
|
mutex_lock(&entity->lock);
|
||
|
|
|
||
|
|
if (fse->index || fse->code != format->code) {
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (fse->pad == 0) {
|
||
|
|
fse->min_width = min_width;
|
||
|
|
fse->max_width = max_width;
|
||
|
|
fse->min_height = min_height;
|
||
|
|
fse->max_height = max_height;
|
||
|
|
} else {
|
||
|
|
/* The size on the source pad are fixed and always identical to
|
||
|
|
* the size on the sink pad.
|
||
|
|
*/
|
||
|
|
fse->min_width = format->width;
|
||
|
|
fse->max_width = format->width;
|
||
|
|
fse->min_height = format->height;
|
||
|
|
fse->max_height = format->height;
|
||
|
|
}
|
||
|
|
|
||
|
|
done:
|
||
|
|
mutex_unlock(&entity->lock);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* -----------------------------------------------------------------------------
|
||
|
|
* Media Operations
|
||
|
|
*/
|
||
|
|
|
||
|
|
int vsp1_entity_link_setup(struct media_entity *entity,
|
||
|
|
const struct media_pad *local,
|
||
|
|
const struct media_pad *remote, u32 flags)
|
||
|
|
{
|
||
|
|
struct vsp1_entity *source;
|
||
|
|
|
||
|
|
if (!(local->flags & MEDIA_PAD_FL_SOURCE))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
source = media_entity_to_vsp1_entity(local->entity);
|
||
|
|
|
||
|
|
if (!source->route)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (flags & MEDIA_LNK_FL_ENABLED) {
|
||
|
|
if (source->sink)
|
||
|
|
return -EBUSY;
|
||
|
|
source->sink = remote->entity;
|
||
|
|
source->sink_pad = remote->index;
|
||
|
|
} else {
|
||
|
|
source->sink = NULL;
|
||
|
|
source->sink_pad = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* -----------------------------------------------------------------------------
|
||
|
|
* Initialization
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define VSP1_ENTITY_ROUTE(ent) \
|
||
|
|
{ VSP1_ENTITY_##ent, 0, VI6_DPR_##ent##_ROUTE, \
|
||
|
|
{ VI6_DPR_NODE_##ent }, VI6_DPR_NODE_##ent }
|
||
|
|
|
||
|
|
#define VSP1_ENTITY_ROUTE_RPF(idx) \
|
||
|
|
{ VSP1_ENTITY_RPF, idx, VI6_DPR_RPF_ROUTE(idx), \
|
||
|
|
{ 0, }, VI6_DPR_NODE_RPF(idx) }
|
||
|
|
|
||
|
|
#define VSP1_ENTITY_ROUTE_UDS(idx) \
|
||
|
|
{ VSP1_ENTITY_UDS, idx, VI6_DPR_UDS_ROUTE(idx), \
|
||
|
|
{ VI6_DPR_NODE_UDS(idx) }, VI6_DPR_NODE_UDS(idx) }
|
||
|
|
|
||
|
|
#define VSP1_ENTITY_ROUTE_WPF(idx) \
|
||
|
|
{ VSP1_ENTITY_WPF, idx, 0, \
|
||
|
|
{ VI6_DPR_NODE_WPF(idx) }, VI6_DPR_NODE_WPF(idx) }
|
||
|
|
|
||
|
|
static const struct vsp1_route vsp1_routes[] = {
|
||
|
|
{ VSP1_ENTITY_BRU, 0, VI6_DPR_BRU_ROUTE,
|
||
|
|
{ VI6_DPR_NODE_BRU_IN(0), VI6_DPR_NODE_BRU_IN(1),
|
||
|
|
VI6_DPR_NODE_BRU_IN(2), VI6_DPR_NODE_BRU_IN(3),
|
||
|
|
VI6_DPR_NODE_BRU_IN(4) }, VI6_DPR_NODE_BRU_OUT },
|
||
|
|
VSP1_ENTITY_ROUTE(CLU),
|
||
|
|
VSP1_ENTITY_ROUTE(HSI),
|
||
|
|
VSP1_ENTITY_ROUTE(HST),
|
||
|
|
{ VSP1_ENTITY_LIF, 0, 0, { VI6_DPR_NODE_LIF, }, VI6_DPR_NODE_LIF },
|
||
|
|
VSP1_ENTITY_ROUTE(LUT),
|
||
|
|
VSP1_ENTITY_ROUTE_RPF(0),
|
||
|
|
VSP1_ENTITY_ROUTE_RPF(1),
|
||
|
|
VSP1_ENTITY_ROUTE_RPF(2),
|
||
|
|
VSP1_ENTITY_ROUTE_RPF(3),
|
||
|
|
VSP1_ENTITY_ROUTE_RPF(4),
|
||
|
|
VSP1_ENTITY_ROUTE(SRU),
|
||
|
|
VSP1_ENTITY_ROUTE_UDS(0),
|
||
|
|
VSP1_ENTITY_ROUTE_UDS(1),
|
||
|
|
VSP1_ENTITY_ROUTE_UDS(2),
|
||
|
|
VSP1_ENTITY_ROUTE_WPF(0),
|
||
|
|
VSP1_ENTITY_ROUTE_WPF(1),
|
||
|
|
VSP1_ENTITY_ROUTE_WPF(2),
|
||
|
|
VSP1_ENTITY_ROUTE_WPF(3),
|
||
|
|
};
|
||
|
|
|
||
|
|
int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
|
||
|
|
const char *name, unsigned int num_pads,
|
||
|
|
const struct v4l2_subdev_ops *ops, u32 function)
|
||
|
|
{
|
||
|
|
struct v4l2_subdev *subdev;
|
||
|
|
unsigned int i;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
for (i = 0; i < ARRAY_SIZE(vsp1_routes); ++i) {
|
||
|
|
if (vsp1_routes[i].type == entity->type &&
|
||
|
|
vsp1_routes[i].index == entity->index) {
|
||
|
|
entity->route = &vsp1_routes[i];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (i == ARRAY_SIZE(vsp1_routes))
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
mutex_init(&entity->lock);
|
||
|
|
|
||
|
|
entity->vsp1 = vsp1;
|
||
|
|
entity->source_pad = num_pads - 1;
|
||
|
|
|
||
|
|
/* Allocate and initialize pads. */
|
||
|
|
entity->pads = devm_kzalloc(vsp1->dev, num_pads * sizeof(*entity->pads),
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (entity->pads == NULL)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
for (i = 0; i < num_pads - 1; ++i)
|
||
|
|
entity->pads[i].flags = MEDIA_PAD_FL_SINK;
|
||
|
|
|
||
|
|
entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE;
|
||
|
|
|
||
|
|
/* Initialize the media entity. */
|
||
|
|
ret = media_entity_pads_init(&entity->subdev.entity, num_pads,
|
||
|
|
entity->pads);
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
/* Initialize the V4L2 subdev. */
|
||
|
|
subdev = &entity->subdev;
|
||
|
|
v4l2_subdev_init(subdev, ops);
|
||
|
|
|
||
|
|
subdev->entity.function = function;
|
||
|
|
subdev->entity.ops = &vsp1->media_ops;
|
||
|
|
subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
||
|
|
|
||
|
|
snprintf(subdev->name, sizeof(subdev->name), "%s %s",
|
||
|
|
dev_name(vsp1->dev), name);
|
||
|
|
|
||
|
|
vsp1_entity_init_cfg(subdev, NULL);
|
||
|
|
|
||
|
|
/* Allocate the pad configuration to store formats and selection
|
||
|
|
* rectangles.
|
||
|
|
*/
|
||
|
|
entity->config = v4l2_subdev_alloc_pad_config(&entity->subdev);
|
||
|
|
if (entity->config == NULL) {
|
||
|
|
media_entity_cleanup(&entity->subdev.entity);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void vsp1_entity_destroy(struct vsp1_entity *entity)
|
||
|
|
{
|
||
|
|
if (entity->ops && entity->ops->destroy)
|
||
|
|
entity->ops->destroy(entity);
|
||
|
|
if (entity->subdev.ctrl_handler)
|
||
|
|
v4l2_ctrl_handler_free(entity->subdev.ctrl_handler);
|
||
|
|
v4l2_subdev_free_pad_config(entity->config);
|
||
|
|
media_entity_cleanup(&entity->subdev.entity);
|
||
|
|
}
|