[media] s5p-tv: remove obsolete driver

The s5p-tv driver has been replaced by the exynos drm driver for quite a
long time now. Remove this driver to avoid having duplicate drivers,
of which this one is considered dead code by Samsung.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

1 files changed, 0 insertions, 1130 deletions

diff --git a/drivers/media/platform/s5p-tv/mixer_video.c b/drivers/media/platform/s5p-tv/mixer_video.c
deleted file mode 100644
index ee74e2b44d69..000000000000
--- a/drivers/media/platform/s5p-tv/mixer_video.c
+++ /dev/null
@@ -1,1130 +0,0 @@
-/*
- * Samsung TV Mixer driver
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *
- * Tomasz Stanislawski, <t.stanislaws@samsung.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
- */
-
-#define pr_fmt(fmt) "s5p-tv (mixer): " fmt
-
-#include "mixer.h"
-
-#include <media/v4l2-ioctl.h>
-#include <linux/videodev2.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/timer.h>
-#include <media/videobuf2-dma-contig.h>
-
-static int find_reg_callback(struct device *dev, void *p)
-{
-	struct v4l2_subdev **sd = p;
-
-	*sd = dev_get_drvdata(dev);
-	/* non-zero value stops iteration */
-	return 1;
-}
-
-static struct v4l2_subdev *find_and_register_subdev(
-	struct mxr_device *mdev, char *module_name)
-{
-	struct device_driver *drv;
-	struct v4l2_subdev *sd = NULL;
-	int ret;
-
-	/* TODO: add waiting until probe is finished */
-	drv = driver_find(module_name, &platform_bus_type);
-	if (!drv) {
-		mxr_warn(mdev, "module %s is missing\n", module_name);
-		return NULL;
-	}
-	/* driver refcnt is increased, it is safe to iterate over devices */
-	ret = driver_for_each_device(drv, NULL, &sd, find_reg_callback);
-	/* ret == 0 means that find_reg_callback was never executed */
-	if (sd == NULL) {
-		mxr_warn(mdev, "module %s provides no subdev!\n", module_name);
-		goto done;
-	}
-	/* v4l2_device_register_subdev detects if sd is NULL */
-	ret = v4l2_device_register_subdev(&mdev->v4l2_dev, sd);
-	if (ret) {
-		mxr_warn(mdev, "failed to register subdev %s\n", sd->name);
-		sd = NULL;
-	}
-
-done:
-	return sd;
-}
-
-int mxr_acquire_video(struct mxr_device *mdev,
-		      struct mxr_output_conf *output_conf, int output_count)
-{
-	struct device *dev = mdev->dev;
-	struct v4l2_device *v4l2_dev = &mdev->v4l2_dev;
-	int i;
-	int ret = 0;
-	struct v4l2_subdev *sd;
-
-	strlcpy(v4l2_dev->name, dev_name(mdev->dev), sizeof(v4l2_dev->name));
-	/* prepare context for V4L2 device */
-	ret = v4l2_device_register(dev, v4l2_dev);
-	if (ret) {
-		mxr_err(mdev, "could not register v4l2 device.\n");
-		goto fail;
-	}
-
-	vb2_dma_contig_set_max_seg_size(mdev->dev, DMA_BIT_MASK(32));
-
-	/* registering outputs */
-	mdev->output_cnt = 0;
-	for (i = 0; i < output_count; ++i) {
-		struct mxr_output_conf *conf = &output_conf[i];
-		struct mxr_output *out;
-
-		sd = find_and_register_subdev(mdev, conf->module_name);
-		/* trying to register next output */
-		if (sd == NULL)
-			continue;
-		out = kzalloc(sizeof(*out), GFP_KERNEL);
-		if (out == NULL) {
-			mxr_err(mdev, "no memory for '%s'\n",
-				conf->output_name);
-			ret = -ENOMEM;
-			/* registered subdevs are removed in fail_v4l2_dev */
-			goto fail_output;
-		}
-		strlcpy(out->name, conf->output_name, sizeof(out->name));
-		out->sd = sd;
-		out->cookie = conf->cookie;
-		mdev->output[mdev->output_cnt++] = out;
-		mxr_info(mdev, "added output '%s' from module '%s'\n",
-			conf->output_name, conf->module_name);
-		/* checking if maximal number of outputs is reached */
-		if (mdev->output_cnt >= MXR_MAX_OUTPUTS)
-			break;
-	}
-
-	if (mdev->output_cnt == 0) {
-		mxr_err(mdev, "failed to register any output\n");
-		ret = -ENODEV;
-		/* skipping fail_output because there is nothing to free */
-		goto fail_v4l2_dev;
-	}
-
-	return 0;
-
-fail_output:
-	/* kfree is NULL-safe */
-	for (i = 0; i < mdev->output_cnt; ++i)
-		kfree(mdev->output[i]);
-	memset(mdev->output, 0, sizeof(mdev->output));
-
-fail_v4l2_dev:
-	/* NOTE: automatically unregister all subdevs */
-	v4l2_device_unregister(v4l2_dev);
-
-fail:
-	return ret;
-}
-
-void mxr_release_video(struct mxr_device *mdev)
-{
-	int i;
-
-	/* kfree is NULL-safe */
-	for (i = 0; i < mdev->output_cnt; ++i)
-		kfree(mdev->output[i]);
-
-	vb2_dma_contig_clear_max_seg_size(mdev->dev);
-	v4l2_device_unregister(&mdev->v4l2_dev);
-}
-
-static int mxr_querycap(struct file *file, void *priv,
-	struct v4l2_capability *cap)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-
-	strlcpy(cap->driver, MXR_DRIVER_NAME, sizeof(cap->driver));
-	strlcpy(cap->card, layer->vfd.name, sizeof(cap->card));
-	sprintf(cap->bus_info, "%d", layer->idx);
-	cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
-	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
-
-	return 0;
-}
-
-static void mxr_geometry_dump(struct mxr_device *mdev, struct mxr_geometry *geo)
-{
-	mxr_dbg(mdev, "src.full_size = (%u, %u)\n",
-		geo->src.full_width, geo->src.full_height);
-	mxr_dbg(mdev, "src.size = (%u, %u)\n",
-		geo->src.width, geo->src.height);
-	mxr_dbg(mdev, "src.offset = (%u, %u)\n",
-		geo->src.x_offset, geo->src.y_offset);
-	mxr_dbg(mdev, "dst.full_size = (%u, %u)\n",
-		geo->dst.full_width, geo->dst.full_height);
-	mxr_dbg(mdev, "dst.size = (%u, %u)\n",
-		geo->dst.width, geo->dst.height);
-	mxr_dbg(mdev, "dst.offset = (%u, %u)\n",
-		geo->dst.x_offset, geo->dst.y_offset);
-	mxr_dbg(mdev, "ratio = (%u, %u)\n",
-		geo->x_ratio, geo->y_ratio);
-}
-
-static void mxr_layer_default_geo(struct mxr_layer *layer)
-{
-	struct mxr_device *mdev = layer->mdev;
-	struct v4l2_mbus_framefmt mbus_fmt;
-
-	memset(&layer->geo, 0, sizeof(layer->geo));
-
-	mxr_get_mbus_fmt(mdev, &mbus_fmt);
-
-	layer->geo.dst.full_width = mbus_fmt.width;
-	layer->geo.dst.full_height = mbus_fmt.height;
-	layer->geo.dst.width = layer->geo.dst.full_width;
-	layer->geo.dst.height = layer->geo.dst.full_height;
-	layer->geo.dst.field = mbus_fmt.field;
-
-	layer->geo.src.full_width = mbus_fmt.width;
-	layer->geo.src.full_height = mbus_fmt.height;
-	layer->geo.src.width = layer->geo.src.full_width;
-	layer->geo.src.height = layer->geo.src.full_height;
-
-	mxr_geometry_dump(mdev, &layer->geo);
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
-	mxr_geometry_dump(mdev, &layer->geo);
-}
-
-static void mxr_layer_update_output(struct mxr_layer *layer)
-{
-	struct mxr_device *mdev = layer->mdev;
-	struct v4l2_mbus_framefmt mbus_fmt;
-
-	mxr_get_mbus_fmt(mdev, &mbus_fmt);
-	/* checking if update is needed */
-	if (layer->geo.dst.full_width == mbus_fmt.width &&
-		layer->geo.dst.full_height == mbus_fmt.width)
-		return;
-
-	layer->geo.dst.full_width = mbus_fmt.width;
-	layer->geo.dst.full_height = mbus_fmt.height;
-	layer->geo.dst.field = mbus_fmt.field;
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SINK, 0);
-
-	mxr_geometry_dump(mdev, &layer->geo);
-}
-
-static const struct mxr_format *find_format_by_fourcc(
-	struct mxr_layer *layer, unsigned long fourcc);
-static const struct mxr_format *find_format_by_index(
-	struct mxr_layer *layer, unsigned long index);
-
-static int mxr_enum_fmt(struct file *file, void  *priv,
-	struct v4l2_fmtdesc *f)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	const struct mxr_format *fmt;
-
-	mxr_dbg(mdev, "%s\n", __func__);
-	fmt = find_format_by_index(layer, f->index);
-	if (fmt == NULL)
-		return -EINVAL;
-
-	strlcpy(f->description, fmt->name, sizeof(f->description));
-	f->pixelformat = fmt->fourcc;
-
-	return 0;
-}
-
-static unsigned int divup(unsigned int divident, unsigned int divisor)
-{
-	return (divident + divisor - 1) / divisor;
-}
-
-unsigned long mxr_get_plane_size(const struct mxr_block *blk,
-	unsigned int width, unsigned int height)
-{
-	unsigned int bl_width = divup(width, blk->width);
-	unsigned int bl_height = divup(height, blk->height);
-
-	return bl_width * bl_height * blk->size;
-}
-
-static void mxr_mplane_fill(struct v4l2_plane_pix_format *planes,
-	const struct mxr_format *fmt, u32 width, u32 height)
-{
-	int i;
-
-	/* checking if nothing to fill */
-	if (!planes)
-		return;
-
-	memset(planes, 0, sizeof(*planes) * fmt->num_subframes);
-	for (i = 0; i < fmt->num_planes; ++i) {
-		struct v4l2_plane_pix_format *plane = planes
-			+ fmt->plane2subframe[i];
-		const struct mxr_block *blk = &fmt->plane[i];
-		u32 bl_width = divup(width, blk->width);
-		u32 bl_height = divup(height, blk->height);
-		u32 sizeimage = bl_width * bl_height * blk->size;
-		u32 bytesperline = bl_width * blk->size / blk->height;
-
-		plane->sizeimage += sizeimage;
-		plane->bytesperline = max(plane->bytesperline, bytesperline);
-	}
-}
-
-static int mxr_g_fmt(struct file *file, void *priv,
-			     struct v4l2_format *f)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-
-	pix->width = layer->geo.src.full_width;
-	pix->height = layer->geo.src.full_height;
-	pix->field = V4L2_FIELD_NONE;
-	pix->pixelformat = layer->fmt->fourcc;
-	pix->colorspace = layer->fmt->colorspace;
-	mxr_mplane_fill(pix->plane_fmt, layer->fmt, pix->width, pix->height);
-
-	return 0;
-}
-
-static int mxr_s_fmt(struct file *file, void *priv,
-	struct v4l2_format *f)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	const struct mxr_format *fmt;
-	struct v4l2_pix_format_mplane *pix;
-	struct mxr_device *mdev = layer->mdev;
-	struct mxr_geometry *geo = &layer->geo;
-
-	mxr_dbg(mdev, "%s:%d\n", __func__, __LINE__);
-
-	pix = &f->fmt.pix_mp;
-	fmt = find_format_by_fourcc(layer, pix->pixelformat);
-	if (fmt == NULL) {
-		mxr_warn(mdev, "not recognized fourcc: %08x\n",
-			pix->pixelformat);
-		return -EINVAL;
-	}
-	layer->fmt = fmt;
-	/* set source size to highest accepted value */
-	geo->src.full_width = max(geo->dst.full_width, pix->width);
-	geo->src.full_height = max(geo->dst.full_height, pix->height);
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
-	mxr_geometry_dump(mdev, &layer->geo);
-	/* set cropping to total visible screen */
-	geo->src.width = pix->width;
-	geo->src.height = pix->height;
-	geo->src.x_offset = 0;
-	geo->src.y_offset = 0;
-	/* assure consistency of geometry */
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_CROP, MXR_NO_OFFSET);
-	mxr_geometry_dump(mdev, &layer->geo);
-	/* set full size to lowest possible value */
-	geo->src.full_width = 0;
-	geo->src.full_height = 0;
-	layer->ops.fix_geometry(layer, MXR_GEOMETRY_SOURCE, 0);
-	mxr_geometry_dump(mdev, &layer->geo);
-
-	/* returning results */
-	mxr_g_fmt(file, priv, f);
-
-	return 0;
-}
-
-static int mxr_g_selection(struct file *file, void *fh,
-	struct v4l2_selection *s)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_geometry *geo = &layer->geo;
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-
-	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
-		s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
-		return -EINVAL;
-
-	switch (s->target) {
-	case V4L2_SEL_TGT_CROP:
-		s->r.left = geo->src.x_offset;
-		s->r.top = geo->src.y_offset;
-		s->r.width = geo->src.width;
-		s->r.height = geo->src.height;
-		break;
-	case V4L2_SEL_TGT_CROP_DEFAULT:
-	case V4L2_SEL_TGT_CROP_BOUNDS:
-		s->r.left = 0;
-		s->r.top = 0;
-		s->r.width = geo->src.full_width;
-		s->r.height = geo->src.full_height;
-		break;
-	case V4L2_SEL_TGT_COMPOSE:
-	case V4L2_SEL_TGT_COMPOSE_PADDED:
-		s->r.left = geo->dst.x_offset;
-		s->r.top = geo->dst.y_offset;
-		s->r.width = geo->dst.width;
-		s->r.height = geo->dst.height;
-		break;
-	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
-	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
-		s->r.left = 0;
-		s->r.top = 0;
-		s->r.width = geo->dst.full_width;
-		s->r.height = geo->dst.full_height;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-/* returns 1 if rectangle 'a' is inside 'b' */
-static int mxr_is_rect_inside(struct v4l2_rect *a, struct v4l2_rect *b)
-{
-	if (a->left < b->left)
-		return 0;
-	if (a->top < b->top)
-		return 0;
-	if (a->left + a->width > b->left + b->width)
-		return 0;
-	if (a->top + a->height > b->top + b->height)
-		return 0;
-	return 1;
-}
-
-static int mxr_s_selection(struct file *file, void *fh,
-	struct v4l2_selection *s)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_geometry *geo = &layer->geo;
-	struct mxr_crop *target = NULL;
-	enum mxr_geometry_stage stage;
-	struct mxr_geometry tmp;
-	struct v4l2_rect res;
-
-	memset(&res, 0, sizeof(res));
-
-	mxr_dbg(layer->mdev, "%s: rect: %dx%d@%d,%d\n", __func__,
-		s->r.width, s->r.height, s->r.left, s->r.top);
-
-	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
-		s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
-		return -EINVAL;
-
-	switch (s->target) {
-	/* ignore read-only targets */
-	case V4L2_SEL_TGT_CROP_DEFAULT:
-	case V4L2_SEL_TGT_CROP_BOUNDS:
-		res.width = geo->src.full_width;
-		res.height = geo->src.full_height;
-		break;
-
-	/* ignore read-only targets */
-	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
-	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
-		res.width = geo->dst.full_width;
-		res.height = geo->dst.full_height;
-		break;
-
-	case V4L2_SEL_TGT_CROP:
-		target = &geo->src;
-		stage = MXR_GEOMETRY_CROP;
-		break;
-	case V4L2_SEL_TGT_COMPOSE:
-	case V4L2_SEL_TGT_COMPOSE_PADDED:
-		target = &geo->dst;
-		stage = MXR_GEOMETRY_COMPOSE;
-		break;
-	default:
-		return -EINVAL;
-	}
-	/* apply change and update geometry if needed */
-	if (target) {
-		/* backup current geometry if setup fails */
-		memcpy(&tmp, geo, sizeof(tmp));
-
-		/* apply requested selection */
-		target->x_offset = s->r.left;
-		target->y_offset = s->r.top;
-		target->width = s->r.width;
-		target->height = s->r.height;
-
-		layer->ops.fix_geometry(layer, stage, s->flags);
-
-		/* retrieve update selection rectangle */
-		res.left = target->x_offset;
-		res.top = target->y_offset;
-		res.width = target->width;
-		res.height = target->height;
-
-		mxr_geometry_dump(layer->mdev, &layer->geo);
-	}
-
-	/* checking if the rectangle satisfies constraints */
-	if ((s->flags & V4L2_SEL_FLAG_LE) && !mxr_is_rect_inside(&res, &s->r))
-		goto fail;
-	if ((s->flags & V4L2_SEL_FLAG_GE) && !mxr_is_rect_inside(&s->r, &res))
-		goto fail;
-
-	/* return result rectangle */
-	s->r = res;
-
-	return 0;
-fail:
-	/* restore old geometry, which is not touched if target is NULL */
-	if (target)
-		memcpy(geo, &tmp, sizeof(tmp));
-	return -ERANGE;
-}
-
-static int mxr_enum_dv_timings(struct file *file, void *fh,
-	struct v4l2_enum_dv_timings *timings)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	int ret;
-
-	timings->pad = 0;
-
-	/* lock protects from changing sd_out */
-	mutex_lock(&mdev->mutex);
-	ret = v4l2_subdev_call(to_outsd(mdev), pad, enum_dv_timings, timings);
-	mutex_unlock(&mdev->mutex);
-
-	return ret ? -EINVAL : 0;
-}
-
-static int mxr_s_dv_timings(struct file *file, void *fh,
-	struct v4l2_dv_timings *timings)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	int ret;
-
-	/* lock protects from changing sd_out */
-	mutex_lock(&mdev->mutex);
-
-	/* timings change cannot be done while there is an entity
-	 * dependent on output configuration
-	 */
-	if (mdev->n_output > 0) {
-		mutex_unlock(&mdev->mutex);
-		return -EBUSY;
-	}
-
-	ret = v4l2_subdev_call(to_outsd(mdev), video, s_dv_timings, timings);
-
-	mutex_unlock(&mdev->mutex);
-
-	mxr_layer_update_output(layer);
-
-	/* any failure should return EINVAL according to V4L2 doc */
-	return ret ? -EINVAL : 0;
-}
-
-static int mxr_g_dv_timings(struct file *file, void *fh,
-	struct v4l2_dv_timings *timings)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	int ret;
-
-	/* lock protects from changing sd_out */
-	mutex_lock(&mdev->mutex);
-	ret = v4l2_subdev_call(to_outsd(mdev), video, g_dv_timings, timings);
-	mutex_unlock(&mdev->mutex);
-
-	return ret ? -EINVAL : 0;
-}
-
-static int mxr_dv_timings_cap(struct file *file, void *fh,
-	struct v4l2_dv_timings_cap *cap)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	int ret;
-
-	cap->pad = 0;
-
-	/* lock protects from changing sd_out */
-	mutex_lock(&mdev->mutex);
-	ret = v4l2_subdev_call(to_outsd(mdev), pad, dv_timings_cap, cap);
-	mutex_unlock(&mdev->mutex);
-
-	return ret ? -EINVAL : 0;
-}
-
-static int mxr_s_std(struct file *file, void *fh, v4l2_std_id norm)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	int ret;
-
-	/* lock protects from changing sd_out */
-	mutex_lock(&mdev->mutex);
-
-	/* standard change cannot be done while there is an entity
-	 * dependent on output configuration
-	 */
-	if (mdev->n_output > 0) {
-		mutex_unlock(&mdev->mutex);
-		return -EBUSY;
-	}
-
-	ret = v4l2_subdev_call(to_outsd(mdev), video, s_std_output, norm);
-
-	mutex_unlock(&mdev->mutex);
-
-	mxr_layer_update_output(layer);
-
-	return ret ? -EINVAL : 0;
-}
-
-static int mxr_g_std(struct file *file, void *fh, v4l2_std_id *norm)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	int ret;
-
-	/* lock protects from changing sd_out */
-	mutex_lock(&mdev->mutex);
-	ret = v4l2_subdev_call(to_outsd(mdev), video, g_std_output, norm);
-	mutex_unlock(&mdev->mutex);
-
-	return ret ? -EINVAL : 0;
-}
-
-static int mxr_enum_output(struct file *file, void *fh, struct v4l2_output *a)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	struct mxr_output *out;
-	struct v4l2_subdev *sd;
-
-	if (a->index >= mdev->output_cnt)
-		return -EINVAL;
-	out = mdev->output[a->index];
-	BUG_ON(out == NULL);
-	sd = out->sd;
-	strlcpy(a->name, out->name, sizeof(a->name));
-
-	/* try to obtain supported tv norms */
-	v4l2_subdev_call(sd, video, g_tvnorms_output, &a->std);
-	a->capabilities = 0;
-	if (sd->ops->video && sd->ops->video->s_dv_timings)
-		a->capabilities |= V4L2_OUT_CAP_DV_TIMINGS;
-	if (sd->ops->video && sd->ops->video->s_std_output)
-		a->capabilities |= V4L2_OUT_CAP_STD;
-	a->type = V4L2_OUTPUT_TYPE_ANALOG;
-
-	return 0;
-}
-
-static int mxr_s_output(struct file *file, void *fh, unsigned int i)
-{
-	struct video_device *vfd = video_devdata(file);
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-
-	if (i >= mdev->output_cnt || mdev->output[i] == NULL)
-		return -EINVAL;
-
-	mutex_lock(&mdev->mutex);
-	if (mdev->n_output > 0) {
-		mutex_unlock(&mdev->mutex);
-		return -EBUSY;
-	}
-	mdev->current_output = i;
-	vfd->tvnorms = 0;
-	v4l2_subdev_call(to_outsd(mdev), video, g_tvnorms_output,
-		&vfd->tvnorms);
-	mutex_unlock(&mdev->mutex);
-
-	/* update layers geometry */
-	mxr_layer_update_output(layer);
-
-	mxr_dbg(mdev, "tvnorms = %08llx\n", vfd->tvnorms);
-
-	return 0;
-}
-
-static int mxr_g_output(struct file *file, void *fh, unsigned int *p)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-
-	mutex_lock(&mdev->mutex);
-	*p = mdev->current_output;
-	mutex_unlock(&mdev->mutex);
-
-	return 0;
-}
-
-static int mxr_reqbufs(struct file *file, void *priv,
-			  struct v4l2_requestbuffers *p)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-	return vb2_reqbufs(&layer->vb_queue, p);
-}
-
-static int mxr_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-	return vb2_querybuf(&layer->vb_queue, p);
-}
-
-static int mxr_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d(%d)\n", __func__, __LINE__, p->index);
-	return vb2_qbuf(&layer->vb_queue, p);
-}
-
-static int mxr_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-	return vb2_dqbuf(&layer->vb_queue, p, file->f_flags & O_NONBLOCK);
-}
-
-static int mxr_expbuf(struct file *file, void *priv,
-	struct v4l2_exportbuffer *eb)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-	return vb2_expbuf(&layer->vb_queue, eb);
-}
-
-static int mxr_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-	return vb2_streamon(&layer->vb_queue, i);
-}
-
-static int mxr_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-	return vb2_streamoff(&layer->vb_queue, i);
-}
-
-static const struct v4l2_ioctl_ops mxr_ioctl_ops = {
-	.vidioc_querycap = mxr_querycap,
-	/* format handling */
-	.vidioc_enum_fmt_vid_out_mplane = mxr_enum_fmt,
-	.vidioc_s_fmt_vid_out_mplane = mxr_s_fmt,
-	.vidioc_g_fmt_vid_out_mplane = mxr_g_fmt,
-	/* buffer control */
-	.vidioc_reqbufs = mxr_reqbufs,
-	.vidioc_querybuf = mxr_querybuf,
-	.vidioc_qbuf = mxr_qbuf,
-	.vidioc_dqbuf = mxr_dqbuf,
-	.vidioc_expbuf = mxr_expbuf,
-	/* Streaming control */
-	.vidioc_streamon = mxr_streamon,
-	.vidioc_streamoff = mxr_streamoff,
-	/* DV Timings functions */
-	.vidioc_enum_dv_timings = mxr_enum_dv_timings,
-	.vidioc_s_dv_timings = mxr_s_dv_timings,
-	.vidioc_g_dv_timings = mxr_g_dv_timings,
-	.vidioc_dv_timings_cap = mxr_dv_timings_cap,
-	/* analog TV standard functions */
-	.vidioc_s_std = mxr_s_std,
-	.vidioc_g_std = mxr_g_std,
-	/* Output handling */
-	.vidioc_enum_output = mxr_enum_output,
-	.vidioc_s_output = mxr_s_output,
-	.vidioc_g_output = mxr_g_output,
-	/* selection ioctls */
-	.vidioc_g_selection = mxr_g_selection,
-	.vidioc_s_selection = mxr_s_selection,
-};
-
-static int mxr_video_open(struct file *file)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	struct mxr_device *mdev = layer->mdev;
-	int ret = 0;
-
-	mxr_dbg(mdev, "%s:%d\n", __func__, __LINE__);
-	if (mutex_lock_interruptible(&layer->mutex))
-		return -ERESTARTSYS;
-	/* assure device probe is finished */
-	wait_for_device_probe();
-	/* creating context for file descriptor */
-	ret = v4l2_fh_open(file);
-	if (ret) {
-		mxr_err(mdev, "v4l2_fh_open failed\n");
-		goto unlock;
-	}
-
-	/* leaving if layer is already initialized */
-	if (!v4l2_fh_is_singular_file(file))
-		goto unlock;
-
-	/* FIXME: should power be enabled on open? */
-	ret = mxr_power_get(mdev);
-	if (ret) {
-		mxr_err(mdev, "power on failed\n");
-		goto fail_fh_open;
-	}
-
-	ret = vb2_queue_init(&layer->vb_queue);
-	if (ret != 0) {
-		mxr_err(mdev, "failed to initialize vb2 queue\n");
-		goto fail_power;
-	}
-	/* set default format, first on the list */
-	layer->fmt = layer->fmt_array[0];
-	/* setup default geometry */
-	mxr_layer_default_geo(layer);
-	mutex_unlock(&layer->mutex);
-
-	return 0;
-
-fail_power:
-	mxr_power_put(mdev);
-
-fail_fh_open:
-	v4l2_fh_release(file);
-
-unlock:
-	mutex_unlock(&layer->mutex);
-
-	return ret;
-}
-
-static unsigned int
-mxr_video_poll(struct file *file, struct poll_table_struct *wait)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	unsigned int res;
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-
-	mutex_lock(&layer->mutex);
-	res = vb2_poll(&layer->vb_queue, file, wait);
-	mutex_unlock(&layer->mutex);
-	return res;
-}
-
-static int mxr_video_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-	int ret;
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-
-	if (mutex_lock_interruptible(&layer->mutex))
-		return -ERESTARTSYS;
-	ret = vb2_mmap(&layer->vb_queue, vma);
-	mutex_unlock(&layer->mutex);
-	return ret;
-}
-
-static int mxr_video_release(struct file *file)
-{
-	struct mxr_layer *layer = video_drvdata(file);
-
-	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
-	mutex_lock(&layer->mutex);
-	if (v4l2_fh_is_singular_file(file)) {
-		vb2_queue_release(&layer->vb_queue);
-		mxr_power_put(layer->mdev);
-	}
-	v4l2_fh_release(file);
-	mutex_unlock(&layer->mutex);
-	return 0;
-}
-
-static const struct v4l2_file_operations mxr_fops = {
-	.owner = THIS_MODULE,
-	.open = mxr_video_open,
-	.poll = mxr_video_poll,
-	.mmap = mxr_video_mmap,
-	.release = mxr_video_release,
-	.unlocked_ioctl = video_ioctl2,
-};
-
-static int queue_setup(struct vb2_queue *vq,
-	unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[],
-	struct device *alloc_devs[])
-{
-	struct mxr_layer *layer = vb2_get_drv_priv(vq);
-	const struct mxr_format *fmt = layer->fmt;
-	int i;
-	struct mxr_device *mdev = layer->mdev;
-	struct v4l2_plane_pix_format planes[3];
-
-	mxr_dbg(mdev, "%s\n", __func__);
-	/* checking if format was configured */
-	if (fmt == NULL)
-		return -EINVAL;
-	mxr_dbg(mdev, "fmt = %s\n", fmt->name);
-	mxr_mplane_fill(planes, fmt, layer->geo.src.full_width,
-		layer->geo.src.full_height);
-
-	*nplanes = fmt->num_subframes;
-	for (i = 0; i < fmt->num_subframes; ++i) {
-		sizes[i] = planes[i].sizeimage;
-		mxr_dbg(mdev, "size[%d] = %08x\n", i, sizes[i]);
-	}
-
-	if (*nbuffers == 0)
-		*nbuffers = 1;
-
-	return 0;
-}
-
-static void buf_queue(struct vb2_buffer *vb)
-{
-	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
-	struct mxr_buffer *buffer = container_of(vbuf, struct mxr_buffer, vb);
-	struct mxr_layer *layer = vb2_get_drv_priv(vb->vb2_queue);
-	struct mxr_device *mdev = layer->mdev;
-	unsigned long flags;
-
-	spin_lock_irqsave(&layer->enq_slock, flags);
-	list_add_tail(&buffer->list, &layer->enq_list);
-	spin_unlock_irqrestore(&layer->enq_slock, flags);
-
-	mxr_dbg(mdev, "queuing buffer\n");
-}
-
-static int start_streaming(struct vb2_queue *vq, unsigned int count)
-{
-	struct mxr_layer *layer = vb2_get_drv_priv(vq);
-	struct mxr_device *mdev = layer->mdev;
-	unsigned long flags;
-
-	mxr_dbg(mdev, "%s\n", __func__);
-
-	/* block any changes in output configuration */
-	mxr_output_get(mdev);
-
-	mxr_layer_update_output(layer);
-	layer->ops.format_set(layer);
-	/* enabling layer in hardware */
-	spin_lock_irqsave(&layer->enq_slock, flags);
-	layer->state = MXR_LAYER_STREAMING;
-	spin_unlock_irqrestore(&layer->enq_slock, flags);
-
-	layer->ops.stream_set(layer, MXR_ENABLE);
-	mxr_streamer_get(mdev);
-
-	return 0;
-}
-
-static void mxr_watchdog(unsigned long arg)
-{
-	struct mxr_layer *layer = (struct mxr_layer *) arg;
-	struct mxr_device *mdev = layer->mdev;
-	unsigned long flags;
-
-	mxr_err(mdev, "watchdog fired for layer %s\n", layer->vfd.name);
-
-	spin_lock_irqsave(&layer->enq_slock, flags);
-
-	if (layer->update_buf == layer->shadow_buf)
-		layer->update_buf = NULL;
-	if (layer->update_buf) {
-		vb2_buffer_done(&layer->update_buf->vb.vb2_buf,
-				VB2_BUF_STATE_ERROR);
-		layer->update_buf = NULL;
-	}
-	if (layer->shadow_buf) {
-		vb2_buffer_done(&layer->shadow_buf->vb.vb2_buf,
-				VB2_BUF_STATE_ERROR);
-		layer->shadow_buf = NULL;
-	}
-	spin_unlock_irqrestore(&layer->enq_slock, flags);
-}
-
-static void stop_streaming(struct vb2_queue *vq)
-{
-	struct mxr_layer *layer = vb2_get_drv_priv(vq);
-	struct mxr_device *mdev = layer->mdev;
-	unsigned long flags;
-	struct timer_list watchdog;
-	struct mxr_buffer *buf, *buf_tmp;
-
-	mxr_dbg(mdev, "%s\n", __func__);
-
-	spin_lock_irqsave(&layer->enq_slock, flags);
-
-	/* reset list */
-	layer->state = MXR_LAYER_STREAMING_FINISH;
-
-	/* set all buffer to be done */
-	list_for_each_entry_safe(buf, buf_tmp, &layer->enq_list, list) {
-		list_del(&buf->list);
-		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
-	}
-
-	spin_unlock_irqrestore(&layer->enq_slock, flags);
-
-	/* give 1 seconds to complete to complete last buffers */
-	setup_timer_on_stack(&watchdog, mxr_watchdog,
-		(unsigned long)layer);
-	mod_timer(&watchdog, jiffies + msecs_to_jiffies(1000));
-
-	/* wait until all buffers are goes to done state */
-	vb2_wait_for_all_buffers(vq);
-
-	/* stop timer if all synchronization is done */
-	del_timer_sync(&watchdog);
-	destroy_timer_on_stack(&watchdog);
-
-	/* stopping hardware */
-	spin_lock_irqsave(&layer->enq_slock, flags);
-	layer->state = MXR_LAYER_IDLE;
-	spin_unlock_irqrestore(&layer->enq_slock, flags);
-
-	/* disabling layer in hardware */
-	layer->ops.stream_set(layer, MXR_DISABLE);
-	/* remove one streamer */
-	mxr_streamer_put(mdev);
-	/* allow changes in output configuration */
-	mxr_output_put(mdev);
-}
-
-static struct vb2_ops mxr_video_qops = {
-	.queue_setup = queue_setup,
-	.buf_queue = buf_queue,
-	.wait_prepare = vb2_ops_wait_prepare,
-	.wait_finish = vb2_ops_wait_finish,
-	.start_streaming = start_streaming,
-	.stop_streaming = stop_streaming,
-};
-
-/* FIXME: try to put this functions to mxr_base_layer_create */
-int mxr_base_layer_register(struct mxr_layer *layer)
-{
-	struct mxr_device *mdev = layer->mdev;
-	int ret;
-
-	ret = video_register_device(&layer->vfd, VFL_TYPE_GRABBER, -1);
-	if (ret)
-		mxr_err(mdev, "failed to register video device\n");
-	else
-		mxr_info(mdev, "registered layer %s as /dev/video%d\n",
-			layer->vfd.name, layer->vfd.num);
-	return ret;
-}
-
-void mxr_base_layer_unregister(struct mxr_layer *layer)
-{
-	video_unregister_device(&layer->vfd);
-}
-
-void mxr_layer_release(struct mxr_layer *layer)
-{
-	if (layer->ops.release)
-		layer->ops.release(layer);
-}
-
-void mxr_base_layer_release(struct mxr_layer *layer)
-{
-	kfree(layer);
-}
-
-static void mxr_vfd_release(struct video_device *vdev)
-{
-	pr_info("video device release\n");
-}
-
-struct mxr_layer *mxr_base_layer_create(struct mxr_device *mdev,
-	int idx, char *name, const struct mxr_layer_ops *ops)
-{
-	struct mxr_layer *layer;
-
-	layer = kzalloc(sizeof(*layer), GFP_KERNEL);
-	if (layer == NULL) {
-		mxr_err(mdev, "not enough memory for layer.\n");
-		goto fail;
-	}
-
-	layer->mdev = mdev;
-	layer->idx = idx;
-	layer->ops = *ops;
-
-	spin_lock_init(&layer->enq_slock);
-	INIT_LIST_HEAD(&layer->enq_list);
-	mutex_init(&layer->mutex);
-
-	layer->vfd = (struct video_device) {
-		.minor = -1,
-		.release = mxr_vfd_release,
-		.fops = &mxr_fops,
-		.vfl_dir = VFL_DIR_TX,
-		.ioctl_ops = &mxr_ioctl_ops,
-	};
-	strlcpy(layer->vfd.name, name, sizeof(layer->vfd.name));
-
-	video_set_drvdata(&layer->vfd, layer);
-	layer->vfd.lock = &layer->mutex;
-	layer->vfd.v4l2_dev = &mdev->v4l2_dev;
-
-	layer->vb_queue = (struct vb2_queue) {
-		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
-		.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF,
-		.drv_priv = layer,
-		.buf_struct_size = sizeof(struct mxr_buffer),
-		.ops = &mxr_video_qops,
-		.min_buffers_needed = 1,
-		.mem_ops = &vb2_dma_contig_memops,
-		.lock = &layer->mutex,
-		.dev = mdev->dev,
-	};
-
-	return layer;
-
-fail:
-	return NULL;
-}
-
-static const struct mxr_format *find_format_by_fourcc(
-	struct mxr_layer *layer, unsigned long fourcc)
-{
-	int i;
-
-	for (i = 0; i < layer->fmt_array_size; ++i)
-		if (layer->fmt_array[i]->fourcc == fourcc)
-			return layer->fmt_array[i];
-	return NULL;
-}
-
-static const struct mxr_format *find_format_by_index(
-	struct mxr_layer *layer, unsigned long index)
-{
-	if (index >= layer->fmt_array_size)
-		return NULL;
-	return layer->fmt_array[index];
-}
-