1 files changed, 0 insertions, 440 deletions

diff --git a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c
deleted file mode 100644
index 62c5c3331cfe..000000000000
--- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c
+++ /dev/null
@@ -1,440 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Driver for STM32 Digital Camera Memory Interface Pixel Processor
- *
- * Copyright (C) STMicroelectronics SA 2023
- * Authors: Hugues Fruchet <hugues.fruchet@foss.st.com>
- *          Alain Volmat <alain.volmat@foss.st.com>
- *          for STMicroelectronics.
- */
-
-#include <linux/v4l2-mediabus.h>
-#include <media/v4l2-event.h>
-#include <media/v4l2-subdev.h>
-
-#include "dcmipp-common.h"
-
-#define DCMIPP_PRCR	0x104
-#define DCMIPP_PRCR_FORMAT_SHIFT	16
-#define DCMIPP_PRCR_FORMAT_YUV422	0x1e
-#define DCMIPP_PRCR_FORMAT_RGB565	0x22
-#define DCMIPP_PRCR_FORMAT_RAW8		0x2a
-#define DCMIPP_PRCR_FORMAT_G8		0x4a
-#define DCMIPP_PRCR_FORMAT_BYTE_STREAM	0x5a
-#define DCMIPP_PRCR_ESS			BIT(4)
-#define DCMIPP_PRCR_PCKPOL		BIT(5)
-#define DCMIPP_PRCR_HSPOL		BIT(6)
-#define DCMIPP_PRCR_VSPOL		BIT(7)
-#define DCMIPP_PRCR_ENABLE		BIT(14)
-#define DCMIPP_PRCR_SWAPCYCLES		BIT(25)
-
-#define DCMIPP_PRESCR	0x108
-#define DCMIPP_PRESUR	0x10c
-
-#define IS_SINK(pad) (!(pad))
-#define IS_SRC(pad)  ((pad))
-
-struct dcmipp_par_pix_map {
-	unsigned int code_sink;
-	unsigned int code_src;
-	u8 prcr_format;
-	u8 prcr_swapcycles;
-};
-
-#define PIXMAP_SINK_SRC_PRCR_SWAP(sink, src, prcr, swap)	\
-	{							\
-		.code_sink = MEDIA_BUS_FMT_##sink,		\
-		.code_src = MEDIA_BUS_FMT_##src,		\
-		.prcr_format = DCMIPP_PRCR_FORMAT_##prcr,	\
-		.prcr_swapcycles = swap,			\
-	}
-static const struct dcmipp_par_pix_map dcmipp_par_pix_map_list[] = {
-	/* RGB565 */
-	PIXMAP_SINK_SRC_PRCR_SWAP(RGB565_2X8_LE, RGB565_2X8_LE, RGB565, 1),
-	PIXMAP_SINK_SRC_PRCR_SWAP(RGB565_2X8_BE, RGB565_2X8_LE, RGB565, 0),
-	/* YUV422 */
-	PIXMAP_SINK_SRC_PRCR_SWAP(YUYV8_2X8, YUYV8_2X8, YUV422, 1),
-	PIXMAP_SINK_SRC_PRCR_SWAP(YUYV8_2X8, UYVY8_2X8, YUV422, 0),
-	PIXMAP_SINK_SRC_PRCR_SWAP(UYVY8_2X8, UYVY8_2X8, YUV422, 1),
-	PIXMAP_SINK_SRC_PRCR_SWAP(UYVY8_2X8, YUYV8_2X8, YUV422, 0),
-	PIXMAP_SINK_SRC_PRCR_SWAP(YVYU8_2X8, YVYU8_2X8, YUV422, 1),
-	PIXMAP_SINK_SRC_PRCR_SWAP(VYUY8_2X8, VYUY8_2X8, YUV422, 1),
-	/* GREY */
-	PIXMAP_SINK_SRC_PRCR_SWAP(Y8_1X8, Y8_1X8, G8, 0),
-	/* Raw Bayer */
-	PIXMAP_SINK_SRC_PRCR_SWAP(SBGGR8_1X8, SBGGR8_1X8, RAW8, 0),
-	PIXMAP_SINK_SRC_PRCR_SWAP(SGBRG8_1X8, SGBRG8_1X8, RAW8, 0),
-	PIXMAP_SINK_SRC_PRCR_SWAP(SGRBG8_1X8, SGRBG8_1X8, RAW8, 0),
-	PIXMAP_SINK_SRC_PRCR_SWAP(SRGGB8_1X8, SRGGB8_1X8, RAW8, 0),
-	/* JPEG */
-	PIXMAP_SINK_SRC_PRCR_SWAP(JPEG_1X8, JPEG_1X8, BYTE_STREAM, 0),
-};
-
-/*
- * Search through the pix_map table, skipping two consecutive entry with the
- * same code
- */
-static inline const struct dcmipp_par_pix_map *dcmipp_par_pix_map_by_index
-						(unsigned int index,
-						 unsigned int pad)
-{
-	unsigned int i = 0;
-	u32 prev_code = 0, cur_code;
-
-	while (i < ARRAY_SIZE(dcmipp_par_pix_map_list)) {
-		if (IS_SRC(pad))
-			cur_code = dcmipp_par_pix_map_list[i].code_src;
-		else
-			cur_code = dcmipp_par_pix_map_list[i].code_sink;
-
-		if (cur_code == prev_code) {
-			i++;
-			continue;
-		}
-		prev_code = cur_code;
-
-		if (index == 0)
-			break;
-		i++;
-		index--;
-	}
-
-	if (i >= ARRAY_SIZE(dcmipp_par_pix_map_list))
-		return NULL;
-
-	return &dcmipp_par_pix_map_list[i];
-}
-
-static inline const struct dcmipp_par_pix_map *dcmipp_par_pix_map_by_code
-					(u32 code_sink, u32 code_src)
-{
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(dcmipp_par_pix_map_list); i++) {
-		if ((dcmipp_par_pix_map_list[i].code_sink == code_sink &&
-		     dcmipp_par_pix_map_list[i].code_src == code_src) ||
-		    (dcmipp_par_pix_map_list[i].code_sink == code_src &&
-		     dcmipp_par_pix_map_list[i].code_src == code_sink) ||
-		    (dcmipp_par_pix_map_list[i].code_sink == code_sink &&
-		     code_src == 0) ||
-		    (code_sink == 0 &&
-		     dcmipp_par_pix_map_list[i].code_src == code_src))
-			return &dcmipp_par_pix_map_list[i];
-	}
-	return NULL;
-}
-
-struct dcmipp_par_device {
-	struct dcmipp_ent_device ved;
-	struct v4l2_subdev sd;
-	struct device *dev;
-	void __iomem *regs;
-	bool streaming;
-};
-
-static const struct v4l2_mbus_framefmt fmt_default = {
-	.width = DCMIPP_FMT_WIDTH_DEFAULT,
-	.height = DCMIPP_FMT_HEIGHT_DEFAULT,
-	.code = MEDIA_BUS_FMT_RGB565_2X8_LE,
-	.field = V4L2_FIELD_NONE,
-	.colorspace = DCMIPP_COLORSPACE_DEFAULT,
-	.ycbcr_enc = DCMIPP_YCBCR_ENC_DEFAULT,
-	.quantization = DCMIPP_QUANTIZATION_DEFAULT,
-	.xfer_func = DCMIPP_XFER_FUNC_DEFAULT,
-};
-
-static int dcmipp_par_init_state(struct v4l2_subdev *sd,
-				 struct v4l2_subdev_state *sd_state)
-{
-	unsigned int i;
-
-	for (i = 0; i < sd->entity.num_pads; i++) {
-		struct v4l2_mbus_framefmt *mf;
-
-		mf = v4l2_subdev_state_get_format(sd_state, i);
-		*mf = fmt_default;
-	}
-
-	return 0;
-}
-
-static int dcmipp_par_enum_mbus_code(struct v4l2_subdev *sd,
-				     struct v4l2_subdev_state *sd_state,
-				     struct v4l2_subdev_mbus_code_enum *code)
-{
-	const struct dcmipp_par_pix_map *vpix =
-		dcmipp_par_pix_map_by_index(code->index, code->pad);
-
-	if (!vpix)
-		return -EINVAL;
-
-	code->code = IS_SRC(code->pad) ? vpix->code_src : vpix->code_sink;
-
-	return 0;
-}
-
-static int dcmipp_par_enum_frame_size(struct v4l2_subdev *sd,
-				      struct v4l2_subdev_state *sd_state,
-				      struct v4l2_subdev_frame_size_enum *fse)
-{
-	const struct dcmipp_par_pix_map *vpix;
-
-	if (fse->index)
-		return -EINVAL;
-
-	/* Only accept code in the pix map table */
-	vpix = dcmipp_par_pix_map_by_code(IS_SINK(fse->pad) ? fse->code : 0,
-					  IS_SRC(fse->pad) ? fse->code : 0);
-	if (!vpix)
-		return -EINVAL;
-
-	fse->min_width = DCMIPP_FRAME_MIN_WIDTH;
-	fse->max_width = DCMIPP_FRAME_MAX_WIDTH;
-	fse->min_height = DCMIPP_FRAME_MIN_HEIGHT;
-	fse->max_height = DCMIPP_FRAME_MAX_HEIGHT;
-
-	return 0;
-}
-
-static void dcmipp_par_adjust_fmt(struct dcmipp_par_device *par,
-				  struct v4l2_mbus_framefmt *fmt, __u32 pad)
-{
-	const struct dcmipp_par_pix_map *vpix;
-
-	/* Only accept code in the pix map table */
-	vpix = dcmipp_par_pix_map_by_code(IS_SINK(pad) ? fmt->code : 0,
-					  IS_SRC(pad) ? fmt->code : 0);
-	if (!vpix)
-		fmt->code = fmt_default.code;
-
-	/* Exclude JPEG if BT656 bus is selected */
-	if (vpix && vpix->code_sink == MEDIA_BUS_FMT_JPEG_1X8 &&
-	    par->ved.bus_type == V4L2_MBUS_BT656)
-		fmt->code = fmt_default.code;
-
-	fmt->width = clamp_t(u32, fmt->width, DCMIPP_FRAME_MIN_WIDTH,
-			     DCMIPP_FRAME_MAX_WIDTH) & ~1;
-	fmt->height = clamp_t(u32, fmt->height, DCMIPP_FRAME_MIN_HEIGHT,
-			      DCMIPP_FRAME_MAX_HEIGHT) & ~1;
-
-	if (fmt->field == V4L2_FIELD_ANY || fmt->field == V4L2_FIELD_ALTERNATE)
-		fmt->field = fmt_default.field;
-
-	dcmipp_colorimetry_clamp(fmt);
-}
-
-static int dcmipp_par_set_fmt(struct v4l2_subdev *sd,
-			      struct v4l2_subdev_state *sd_state,
-			      struct v4l2_subdev_format *fmt)
-{
-	struct dcmipp_par_device *par = v4l2_get_subdevdata(sd);
-	struct v4l2_mbus_framefmt *mf;
-
-	if (par->streaming)
-		return -EBUSY;
-
-	mf = v4l2_subdev_state_get_format(sd_state, fmt->pad);
-
-	/* Set the new format */
-	dcmipp_par_adjust_fmt(par, &fmt->format, fmt->pad);
-
-	dev_dbg(par->dev, "%s: format update: old:%dx%d (0x%x, %d, %d, %d, %d) new:%dx%d (0x%x, %d, %d, %d, %d)\n",
-		par->sd.name,
-		/* old */
-		mf->width, mf->height, mf->code,
-		mf->colorspace,	mf->quantization,
-		mf->xfer_func, mf->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);
-
-	*mf = fmt->format;
-
-	/* When setting the sink format, report that format on the src pad */
-	if (IS_SINK(fmt->pad)) {
-		mf = v4l2_subdev_state_get_format(sd_state, 1);
-		*mf = fmt->format;
-		dcmipp_par_adjust_fmt(par, mf, 1);
-	}
-
-	return 0;
-}
-
-static const struct v4l2_subdev_pad_ops dcmipp_par_pad_ops = {
-	.enum_mbus_code		= dcmipp_par_enum_mbus_code,
-	.enum_frame_size	= dcmipp_par_enum_frame_size,
-	.get_fmt		= v4l2_subdev_get_fmt,
-	.set_fmt		= dcmipp_par_set_fmt,
-};
-
-static int dcmipp_par_configure(struct dcmipp_par_device *par)
-{
-	u32 val = 0;
-	const struct dcmipp_par_pix_map *vpix;
-	struct v4l2_subdev_state *state;
-	struct v4l2_mbus_framefmt *sink_fmt;
-	struct v4l2_mbus_framefmt *src_fmt;
-
-	/* Set vertical synchronization polarity */
-	if (par->ved.bus.flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
-		val |= DCMIPP_PRCR_VSPOL;
-
-	/* Set horizontal synchronization polarity */
-	if (par->ved.bus.flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
-		val |= DCMIPP_PRCR_HSPOL;
-
-	/* Set pixel clock polarity */
-	if (par->ved.bus.flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
-		val |= DCMIPP_PRCR_PCKPOL;
-
-	/*
-	 * BT656 embedded synchronisation bus mode.
-	 *
-	 * Default SAV/EAV mode is supported here with default codes
-	 * SAV=0xff000080 & EAV=0xff00009d.
-	 * With DCMIPP this means LSC=SAV=0x80 & LEC=EAV=0x9d.
-	 */
-	if (par->ved.bus_type == V4L2_MBUS_BT656) {
-		val |= DCMIPP_PRCR_ESS;
-
-		/* Unmask all codes */
-		reg_write(par, DCMIPP_PRESUR, 0xffffffff);/* FEC:LEC:LSC:FSC */
-
-		/* Trig on LSC=0x80 & LEC=0x9d codes, ignore FSC and FEC */
-		reg_write(par, DCMIPP_PRESCR, 0xff9d80ff);/* FEC:LEC:LSC:FSC */
-	}
-
-	/* Set format */
-	state = v4l2_subdev_lock_and_get_active_state(&par->sd);
-	sink_fmt = v4l2_subdev_state_get_format(state, 0);
-	src_fmt = v4l2_subdev_state_get_format(state, 1);
-	v4l2_subdev_unlock_state(state);
-
-	vpix = dcmipp_par_pix_map_by_code(sink_fmt->code, src_fmt->code);
-	if (!vpix) {
-		dev_err(par->dev, "Invalid sink/src format configuration\n");
-		return -EINVAL;
-	}
-
-	val |= vpix->prcr_format << DCMIPP_PRCR_FORMAT_SHIFT;
-
-	/* swap cycles */
-	if (vpix->prcr_swapcycles)
-		val |= DCMIPP_PRCR_SWAPCYCLES;
-
-	reg_write(par, DCMIPP_PRCR, val);
-
-	return 0;
-}
-
-static int dcmipp_par_s_stream(struct v4l2_subdev *sd, int enable)
-{
-	struct dcmipp_par_device *par =
-				container_of(sd, struct dcmipp_par_device, sd);
-	struct v4l2_subdev *s_subdev;
-	struct media_pad *pad;
-	int ret = 0;
-
-	/* Get source subdev */
-	pad = media_pad_remote_pad_first(&sd->entity.pads[0]);
-	if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
-		return -EINVAL;
-	s_subdev = media_entity_to_v4l2_subdev(pad->entity);
-
-	if (enable) {
-		ret = dcmipp_par_configure(par);
-		if (ret)
-			return ret;
-
-		/* Enable parallel interface */
-		reg_set(par, DCMIPP_PRCR, DCMIPP_PRCR_ENABLE);
-
-		ret = v4l2_subdev_call(s_subdev, video, s_stream, enable);
-		if (ret < 0) {
-			dev_err(par->dev,
-				"failed to start source subdev streaming (%d)\n",
-				ret);
-			return ret;
-		}
-	} else {
-		ret = v4l2_subdev_call(s_subdev, video, s_stream, enable);
-		if (ret < 0) {
-			dev_err(par->dev,
-				"failed to stop source subdev streaming (%d)\n",
-				ret);
-			return ret;
-		}
-
-		/* Disable parallel interface */
-		reg_clear(par, DCMIPP_PRCR, DCMIPP_PRCR_ENABLE);
-	}
-
-	par->streaming = enable;
-
-	return ret;
-}
-
-static const struct v4l2_subdev_video_ops dcmipp_par_video_ops = {
-	.s_stream = dcmipp_par_s_stream,
-};
-
-static const struct v4l2_subdev_ops dcmipp_par_ops = {
-	.pad = &dcmipp_par_pad_ops,
-	.video = &dcmipp_par_video_ops,
-};
-
-static void dcmipp_par_release(struct v4l2_subdev *sd)
-{
-	struct dcmipp_par_device *par =
-				container_of(sd, struct dcmipp_par_device, sd);
-
-	kfree(par);
-}
-
-static const struct v4l2_subdev_internal_ops dcmipp_par_int_ops = {
-	.init_state = dcmipp_par_init_state,
-	.release = dcmipp_par_release,
-};
-
-void dcmipp_par_ent_release(struct dcmipp_ent_device *ved)
-{
-	struct dcmipp_par_device *par =
-			container_of(ved, struct dcmipp_par_device, ved);
-
-	dcmipp_ent_sd_unregister(ved, &par->sd);
-}
-
-struct dcmipp_ent_device *dcmipp_par_ent_init(struct device *dev,
-					      const char *entity_name,
-					      struct v4l2_device *v4l2_dev,
-					      void __iomem *regs)
-{
-	struct dcmipp_par_device *par;
-	const unsigned long pads_flag[] = {
-		MEDIA_PAD_FL_SINK, MEDIA_PAD_FL_SOURCE,
-	};
-	int ret;
-
-	/* Allocate the par struct */
-	par = kzalloc(sizeof(*par), GFP_KERNEL);
-	if (!par)
-		return ERR_PTR(-ENOMEM);
-
-	par->regs = regs;
-
-	/* Initialize ved and sd */
-	ret = dcmipp_ent_sd_register(&par->ved, &par->sd, v4l2_dev,
-				     entity_name, MEDIA_ENT_F_VID_IF_BRIDGE,
-				     ARRAY_SIZE(pads_flag), pads_flag,
-				     &dcmipp_par_int_ops, &dcmipp_par_ops,
-				     NULL, NULL);
-	if (ret) {
-		kfree(par);
-		return ERR_PTR(ret);
-	}
-
-	par->dev = dev;
-
-	return &par->ved;
-}