1 files changed, 0 insertions, 456 deletions

diff --git a/drivers/media/platform/vimc/vimc-scaler.c b/drivers/media/platform/vimc/vimc-scaler.c
deleted file mode 100644
index 0a3e086e12f3..000000000000
--- a/drivers/media/platform/vimc/vimc-scaler.c
+++ /dev/null
@@ -1,456 +0,0 @@
-/*
- * vimc-scaler.c Virtual Media Controller Driver
- *
- * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.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.
- *
- * 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 <linux/component.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/vmalloc.h>
-#include <linux/v4l2-mediabus.h>
-#include <media/v4l2-subdev.h>
-
-#include "vimc-common.h"
-
-#define VIMC_SCA_DRV_NAME "vimc-scaler"
-
-static unsigned int sca_mult = 3;
-module_param(sca_mult, uint, 0000);
-MODULE_PARM_DESC(sca_mult, " the image size multiplier");
-
-#define IS_SINK(pad)	(!pad)
-#define IS_SRC(pad)	(pad)
-#define MAX_ZOOM	8
-
-struct vimc_sca_device {
-	struct vimc_ent_device ved;
-	struct v4l2_subdev sd;
-	struct device *dev;
-	/* NOTE: the source fmt is the same as the sink
-	 * with the width and hight multiplied by mult
-	 */
-	struct v4l2_mbus_framefmt sink_fmt;
-	/* Values calculated when the stream starts */
-	u8 *src_frame;
-	unsigned int src_line_size;
-	unsigned int bpp;
-};
-
-static const struct v4l2_mbus_framefmt sink_fmt_default = {
-	.width = 640,
-	.height = 480,
-	.code = MEDIA_BUS_FMT_RGB888_1X24,
-	.field = V4L2_FIELD_NONE,
-	.colorspace = V4L2_COLORSPACE_DEFAULT,
-};
-
-static int vimc_sca_init_cfg(struct v4l2_subdev *sd,
-			     struct v4l2_subdev_pad_config *cfg)
-{
-	struct v4l2_mbus_framefmt *mf;
-	unsigned int i;
-
-	mf = v4l2_subdev_get_try_format(sd, cfg, 0);
-	*mf = sink_fmt_default;
-
-	for (i = 1; i < sd->entity.num_pads; i++) {
-		mf = v4l2_subdev_get_try_format(sd, cfg, i);
-		*mf = sink_fmt_default;
-		mf->width = mf->width * sca_mult;
-		mf->height = mf->height * sca_mult;
-	}
-
-	return 0;
-}
-
-static int vimc_sca_enum_mbus_code(struct v4l2_subdev *sd,
-				   struct v4l2_subdev_pad_config *cfg,
-				   struct v4l2_subdev_mbus_code_enum *code)
-{
-	const struct vimc_pix_map *vpix = vimc_pix_map_by_index(code->index);
-
-	/* We don't support bayer format */
-	if (!vpix || vpix->bayer)
-		return -EINVAL;
-
-	code->code = vpix->code;
-
-	return 0;
-}
-
-static int vimc_sca_enum_frame_size(struct v4l2_subdev *sd,
-				    struct v4l2_subdev_pad_config *cfg,
-				    struct v4l2_subdev_frame_size_enum *fse)
-{
-	const struct vimc_pix_map *vpix;
-
-	if (fse->index)
-		return -EINVAL;
-
-	/* Only accept code in the pix map table in non bayer format */
-	vpix = vimc_pix_map_by_code(fse->code);
-	if (!vpix || vpix->bayer)
-		return -EINVAL;
-
-	fse->min_width = VIMC_FRAME_MIN_WIDTH;
-	fse->min_height = VIMC_FRAME_MIN_HEIGHT;
-
-	if (IS_SINK(fse->pad)) {
-		fse->max_width = VIMC_FRAME_MAX_WIDTH;
-		fse->max_height = VIMC_FRAME_MAX_HEIGHT;
-	} else {
-		fse->max_width = VIMC_FRAME_MAX_WIDTH * MAX_ZOOM;
-		fse->max_height = VIMC_FRAME_MAX_HEIGHT * MAX_ZOOM;
-	}
-
-	return 0;
-}
-
-static int vimc_sca_get_fmt(struct v4l2_subdev *sd,
-			    struct v4l2_subdev_pad_config *cfg,
-			    struct v4l2_subdev_format *format)
-{
-	struct vimc_sca_device *vsca = v4l2_get_subdevdata(sd);
-
-	/* Get the current sink format */
-	format->format = (format->which == V4L2_SUBDEV_FORMAT_TRY) ?
-			 *v4l2_subdev_get_try_format(sd, cfg, 0) :
-			 vsca->sink_fmt;
-
-	/* Scale the frame size for the source pad */
-	if (IS_SRC(format->pad)) {
-		format->format.width = vsca->sink_fmt.width * sca_mult;
-		format->format.height = vsca->sink_fmt.height * sca_mult;
-	}
-
-	return 0;
-}
-
-static void vimc_sca_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt)
-{
-	const struct vimc_pix_map *vpix;
-
-	/* Only accept code in the pix map table in non bayer format */
-	vpix = vimc_pix_map_by_code(fmt->code);
-	if (!vpix || vpix->bayer)
-		fmt->code = sink_fmt_default.code;
-
-	fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
-			     VIMC_FRAME_MAX_WIDTH) & ~1;
-	fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT,
-			      VIMC_FRAME_MAX_HEIGHT) & ~1;
-
-	if (fmt->field == V4L2_FIELD_ANY)
-		fmt->field = sink_fmt_default.field;
-
-	vimc_colorimetry_clamp(fmt);
-}
-
-static int vimc_sca_set_fmt(struct v4l2_subdev *sd,
-			    struct v4l2_subdev_pad_config *cfg,
-			    struct v4l2_subdev_format *fmt)
-{
-	struct vimc_sca_device *vsca = v4l2_get_subdevdata(sd);
-	struct v4l2_mbus_framefmt *sink_fmt;
-
-	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
-		/* Do not change the format while stream is on */
-		if (vsca->src_frame)
-			return -EBUSY;
-
-		sink_fmt = &vsca->sink_fmt;
-	} else {
-		sink_fmt = v4l2_subdev_get_try_format(sd, cfg, 0);
-	}
-
-	/*
-	 * Do not change the format of the source pad,
-	 * it is propagated from the sink
-	 */
-	if (IS_SRC(fmt->pad)) {
-		fmt->format = *sink_fmt;
-		fmt->format.width = sink_fmt->width * sca_mult;
-		fmt->format.height = sink_fmt->height * sca_mult;
-	} else {
-		/* Set the new format in the sink pad */
-		vimc_sca_adjust_sink_fmt(&fmt->format);
-
-		dev_dbg(vsca->dev, "%s: sink format update: "
-			"old:%dx%d (0x%x, %d, %d, %d, %d) "
-			"new:%dx%d (0x%x, %d, %d, %d, %d)\n", vsca->sd.name,
-			/* old */
-			sink_fmt->width, sink_fmt->height, sink_fmt->code,
-			sink_fmt->colorspace, sink_fmt->quantization,
-			sink_fmt->xfer_func, sink_fmt->ycbcr_enc,
-			/* new */
-			fmt->format.width, fmt->format.height, fmt->format.code,
-			fmt->format.colorspace,	fmt->format.quantization,
-			fmt->format.xfer_func, fmt->format.ycbcr_enc);
-
-		*sink_fmt = fmt->format;
-	}
-
-	return 0;
-}
-
-static const struct v4l2_subdev_pad_ops vimc_sca_pad_ops = {
-	.init_cfg		= vimc_sca_init_cfg,
-	.enum_mbus_code		= vimc_sca_enum_mbus_code,
-	.enum_frame_size	= vimc_sca_enum_frame_size,
-	.get_fmt		= vimc_sca_get_fmt,
-	.set_fmt		= vimc_sca_set_fmt,
-};
-
-static int vimc_sca_s_stream(struct v4l2_subdev *sd, int enable)
-{
-	struct vimc_sca_device *vsca = v4l2_get_subdevdata(sd);
-	int ret;
-
-	if (enable) {
-		const struct vimc_pix_map *vpix;
-		unsigned int frame_size;
-
-		if (vsca->src_frame)
-			return 0;
-
-		/* Save the bytes per pixel of the sink */
-		vpix = vimc_pix_map_by_code(vsca->sink_fmt.code);
-		vsca->bpp = vpix->bpp;
-
-		/* Calculate the width in bytes of the src frame */
-		vsca->src_line_size = vsca->sink_fmt.width *
-				      sca_mult * vsca->bpp;
-
-		/* Calculate the frame size of the source pad */
-		frame_size = vsca->src_line_size * vsca->sink_fmt.height *
-			     sca_mult;
-
-		/* Allocate the frame buffer. Use vmalloc to be able to
-		 * allocate a large amount of memory
-		 */
-		vsca->src_frame = vmalloc(frame_size);
-		if (!vsca->src_frame)
-			return -ENOMEM;
-
-		/* Turn the stream on in the subdevices directly connected */
-		ret = vimc_pipeline_s_stream(&vsca->sd.entity, 1);
-		if (ret) {
-			vfree(vsca->src_frame);
-			vsca->src_frame = NULL;
-			return ret;
-		}
-	} else {
-		if (!vsca->src_frame)
-			return 0;
-
-		/* Disable streaming from the pipe */
-		ret = vimc_pipeline_s_stream(&vsca->sd.entity, 0);
-		if (ret)
-			return ret;
-
-		vfree(vsca->src_frame);
-		vsca->src_frame = NULL;
-	}
-
-	return 0;
-}
-
-static struct v4l2_subdev_video_ops vimc_sca_video_ops = {
-	.s_stream = vimc_sca_s_stream,
-};
-
-static const struct v4l2_subdev_ops vimc_sca_ops = {
-	.pad = &vimc_sca_pad_ops,
-	.video = &vimc_sca_video_ops,
-};
-
-static void vimc_sca_fill_pix(u8 *const ptr,
-			      const u8 *const pixel,
-			      const unsigned int bpp)
-{
-	unsigned int i;
-
-	/* copy the pixel to the pointer */
-	for (i = 0; i < bpp; i++)
-		ptr[i] = pixel[i];
-}
-
-static void vimc_sca_scale_pix(const struct vimc_sca_device *const vsca,
-			       const unsigned int lin, const unsigned int col,
-			       const u8 *const sink_frame)
-{
-	unsigned int i, j, index;
-	const u8 *pixel;
-
-	/* Point to the pixel value in position (lin, col) in the sink frame */
-	index = VIMC_FRAME_INDEX(lin, col,
-				 vsca->sink_fmt.width,
-				 vsca->bpp);
-	pixel = &sink_frame[index];
-
-	dev_dbg(vsca->dev,
-		"sca: %s: --- scale_pix sink pos %dx%d, index %d ---\n",
-		vsca->sd.name, lin, col, index);
-
-	/* point to the place we are going to put the first pixel
-	 * in the scaled src frame
-	 */
-	index = VIMC_FRAME_INDEX(lin * sca_mult, col * sca_mult,
-				 vsca->sink_fmt.width * sca_mult, vsca->bpp);
-
-	dev_dbg(vsca->dev, "sca: %s: scale_pix src pos %dx%d, index %d\n",
-		vsca->sd.name, lin * sca_mult, col * sca_mult, index);
-
-	/* Repeat this pixel mult times */
-	for (i = 0; i < sca_mult; i++) {
-		/* Iterate through each beginning of a
-		 * pixel repetition in a line
-		 */
-		for (j = 0; j < sca_mult * vsca->bpp; j += vsca->bpp) {
-			dev_dbg(vsca->dev,
-				"sca: %s: sca: scale_pix src pos %d\n",
-				vsca->sd.name, index + j);
-
-			/* copy the pixel to the position index + j */
-			vimc_sca_fill_pix(&vsca->src_frame[index + j],
-					  pixel, vsca->bpp);
-		}
-
-		/* move the index to the next line */
-		index += vsca->src_line_size;
-	}
-}
-
-static void vimc_sca_fill_src_frame(const struct vimc_sca_device *const vsca,
-				    const u8 *const sink_frame)
-{
-	unsigned int i, j;
-
-	/* Scale each pixel from the original sink frame */
-	/* TODO: implement scale down, only scale up is supported for now */
-	for (i = 0; i < vsca->sink_fmt.height; i++)
-		for (j = 0; j < vsca->sink_fmt.width; j++)
-			vimc_sca_scale_pix(vsca, i, j, sink_frame);
-}
-
-static void vimc_sca_process_frame(struct vimc_ent_device *ved,
-				   struct media_pad *sink,
-				   const void *sink_frame)
-{
-	struct vimc_sca_device *vsca = container_of(ved, struct vimc_sca_device,
-						    ved);
-	unsigned int i;
-
-	/* If the stream in this node is not active, just return */
-	if (!vsca->src_frame)
-		return;
-
-	vimc_sca_fill_src_frame(vsca, sink_frame);
-
-	/* Propagate the frame through all source pads */
-	for (i = 1; i < vsca->sd.entity.num_pads; i++) {
-		struct media_pad *pad = &vsca->sd.entity.pads[i];
-
-		vimc_propagate_frame(pad, vsca->src_frame);
-	}
-};
-
-static void vimc_sca_comp_unbind(struct device *comp, struct device *master,
-				 void *master_data)
-{
-	struct vimc_ent_device *ved = dev_get_drvdata(comp);
-	struct vimc_sca_device *vsca = container_of(ved, struct vimc_sca_device,
-						    ved);
-
-	vimc_ent_sd_unregister(ved, &vsca->sd);
-	kfree(vsca);
-}
-
-
-static int vimc_sca_comp_bind(struct device *comp, struct device *master,
-			      void *master_data)
-{
-	struct v4l2_device *v4l2_dev = master_data;
-	struct vimc_platform_data *pdata = comp->platform_data;
-	struct vimc_sca_device *vsca;
-	int ret;
-
-	/* Allocate the vsca struct */
-	vsca = kzalloc(sizeof(*vsca), GFP_KERNEL);
-	if (!vsca)
-		return -ENOMEM;
-
-	/* Initialize ved and sd */
-	ret = vimc_ent_sd_register(&vsca->ved, &vsca->sd, v4l2_dev,
-				   pdata->entity_name,
-				   MEDIA_ENT_F_ATV_DECODER, 2,
-				   (const unsigned long[2]) {MEDIA_PAD_FL_SINK,
-				   MEDIA_PAD_FL_SOURCE},
-				   &vimc_sca_ops);
-	if (ret) {
-		kfree(vsca);
-		return ret;
-	}
-
-	vsca->ved.process_frame = vimc_sca_process_frame;
-	dev_set_drvdata(comp, &vsca->ved);
-	vsca->dev = comp;
-
-	/* Initialize the frame format */
-	vsca->sink_fmt = sink_fmt_default;
-
-	return 0;
-}
-
-static const struct component_ops vimc_sca_comp_ops = {
-	.bind = vimc_sca_comp_bind,
-	.unbind = vimc_sca_comp_unbind,
-};
-
-static int vimc_sca_probe(struct platform_device *pdev)
-{
-	return component_add(&pdev->dev, &vimc_sca_comp_ops);
-}
-
-static int vimc_sca_remove(struct platform_device *pdev)
-{
-	component_del(&pdev->dev, &vimc_sca_comp_ops);
-
-	return 0;
-}
-
-static const struct platform_device_id vimc_sca_driver_ids[] = {
-	{
-		.name           = VIMC_SCA_DRV_NAME,
-	},
-	{ }
-};
-
-static struct platform_driver vimc_sca_pdrv = {
-	.probe		= vimc_sca_probe,
-	.remove		= vimc_sca_remove,
-	.id_table	= vimc_sca_driver_ids,
-	.driver		= {
-		.name	= VIMC_SCA_DRV_NAME,
-	},
-};
-
-module_platform_driver(vimc_sca_pdrv);
-
-MODULE_DEVICE_TABLE(platform, vimc_sca_driver_ids);
-
-MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Scaler");
-MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>");
-MODULE_LICENSE("GPL");