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/*
* Support for Medifield PNW Camera Imaging ISP subsystem.
*
* Copyright (c) 2010 Intel Corporation. All Rights Reserved.
*
* Copyright (c) 2010 Silicon Hive www.siliconhive.com.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*
*/
#include <media/v4l2-event.h>
#include <media/v4l2-mediabus.h>
#include "atomisp_internal.h"
#include "atomisp_tpg.h"
static int tpg_s_stream(struct v4l2_subdev *sd, int enable)
{
return 0;
}
static int tpg_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *format)
{
/*to fake*/
return 0;
}
static int tpg_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *fmt = &format->format;
if (format->pad)
return -EINVAL;
/* only raw8 grbg is supported by TPG */
fmt->code = MEDIA_BUS_FMT_SGRBG8_1X8;
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
cfg->try_fmt = *fmt;
return 0;
}
return 0;
}
static int tpg_log_status(struct v4l2_subdev *sd)
{
/*to fake*/
return 0;
}
static int tpg_s_power(struct v4l2_subdev *sd, int on)
{
return 0;
}
static int tpg_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
/*to fake*/
return 0;
}
static int tpg_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
/*to fake*/
return 0;
}
static int tpg_enum_frame_ival(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
/*to fake*/
return 0;
}
static const struct v4l2_subdev_video_ops tpg_video_ops = {
.s_stream = tpg_s_stream,
};
static const struct v4l2_subdev_core_ops tpg_core_ops = {
.log_status = tpg_log_status,
.s_power = tpg_s_power,
};
static const struct v4l2_subdev_pad_ops tpg_pad_ops = {
.enum_mbus_code = tpg_enum_mbus_code,
.enum_frame_size = tpg_enum_frame_size,
.enum_frame_interval = tpg_enum_frame_ival,
.get_fmt = tpg_get_fmt,
.set_fmt = tpg_set_fmt,
};
static const struct v4l2_subdev_ops tpg_ops = {
.core = &tpg_core_ops,
.video = &tpg_video_ops,
.pad = &tpg_pad_ops,
};
void atomisp_tpg_unregister_entities(struct atomisp_tpg_device *tpg)
{
media_entity_cleanup(&tpg->sd.entity);
v4l2_device_unregister_subdev(&tpg->sd);
}
int atomisp_tpg_register_entities(struct atomisp_tpg_device *tpg,
struct v4l2_device *vdev)
{
int ret;
/* Register the subdev and video nodes. */
ret = v4l2_device_register_subdev(vdev, &tpg->sd);
if (ret < 0)
goto error;
return 0;
error:
atomisp_tpg_unregister_entities(tpg);
return ret;
}
void atomisp_tpg_cleanup(struct atomisp_device *isp)
{
}
int atomisp_tpg_init(struct atomisp_device *isp)
{
struct atomisp_tpg_device *tpg = &isp->tpg;
struct v4l2_subdev *sd = &tpg->sd;
struct media_pad *pads = tpg->pads;
struct media_entity *me = &sd->entity;
int ret;
tpg->isp = isp;
v4l2_subdev_init(sd, &tpg_ops);
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
strcpy(sd->name, "tpg_subdev");
v4l2_set_subdevdata(sd, tpg);
pads[0].flags = MEDIA_PAD_FL_SINK;
me->function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
ret = media_entity_pads_init(me, 1, pads);
if (ret < 0)
goto fail;
return 0;
fail:
atomisp_tpg_cleanup(isp);
return ret;
}
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