Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 178 insertions, 0 deletions

diff --git a/drivers/media/platform/renesas/vsp1/vsp1_hsit.c b/drivers/media/platform/renesas/vsp1/vsp1_hsit.c
new file mode 100644
index 000000000..361a87038
--- /dev/null
+++ b/drivers/media/platform/renesas/vsp1/vsp1_hsit.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * vsp1_hsit.c  --  R-Car VSP1 Hue Saturation value (Inverse) Transform
+ *
+ * Copyright (C) 2013 Renesas Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+
+#include <linux/device.h>
+#include <linux/gfp.h>
+
+#include <media/v4l2-subdev.h>
+
+#include "vsp1.h"
+#include "vsp1_dl.h"
+#include "vsp1_hsit.h"
+
+#define HSIT_MIN_SIZE				4U
+#define HSIT_MAX_SIZE				8190U
+
+/* -----------------------------------------------------------------------------
+ * Device Access
+ */
+
+static inline void vsp1_hsit_write(struct vsp1_hsit *hsit,
+				   struct vsp1_dl_body *dlb, u32 reg, u32 data)
+{
+	vsp1_dl_body_write(dlb, reg, data);
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Subdevice Operations
+ */
+
+static int hsit_enum_mbus_code(struct v4l2_subdev *subdev,
+			       struct v4l2_subdev_state *sd_state,
+			       struct v4l2_subdev_mbus_code_enum *code)
+{
+	struct vsp1_hsit *hsit = to_hsit(subdev);
+
+	if (code->index > 0)
+		return -EINVAL;
+
+	if ((code->pad == HSIT_PAD_SINK && !hsit->inverse) |
+	    (code->pad == HSIT_PAD_SOURCE && hsit->inverse))
+		code->code = MEDIA_BUS_FMT_ARGB8888_1X32;
+	else
+		code->code = MEDIA_BUS_FMT_AHSV8888_1X32;
+
+	return 0;
+}
+
+static int hsit_enum_frame_size(struct v4l2_subdev *subdev,
+				struct v4l2_subdev_state *sd_state,
+				struct v4l2_subdev_frame_size_enum *fse)
+{
+	return vsp1_subdev_enum_frame_size(subdev, sd_state, fse,
+					   HSIT_MIN_SIZE,
+					   HSIT_MIN_SIZE, HSIT_MAX_SIZE,
+					   HSIT_MAX_SIZE);
+}
+
+static int hsit_set_format(struct v4l2_subdev *subdev,
+			   struct v4l2_subdev_state *sd_state,
+			   struct v4l2_subdev_format *fmt)
+{
+	struct vsp1_hsit *hsit = to_hsit(subdev);
+	struct v4l2_subdev_state *config;
+	struct v4l2_mbus_framefmt *format;
+	int ret = 0;
+
+	mutex_lock(&hsit->entity.lock);
+
+	config = vsp1_entity_get_pad_config(&hsit->entity, sd_state,
+					    fmt->which);
+	if (!config) {
+		ret = -EINVAL;
+		goto done;
+	}
+
+	format = vsp1_entity_get_pad_format(&hsit->entity, config, fmt->pad);
+
+	if (fmt->pad == HSIT_PAD_SOURCE) {
+		/*
+		 * The HST and HSI output format code and resolution can't be
+		 * modified.
+		 */
+		fmt->format = *format;
+		goto done;
+	}
+
+	format->code = hsit->inverse ? MEDIA_BUS_FMT_AHSV8888_1X32
+		     : MEDIA_BUS_FMT_ARGB8888_1X32;
+	format->width = clamp_t(unsigned int, fmt->format.width,
+				HSIT_MIN_SIZE, HSIT_MAX_SIZE);
+	format->height = clamp_t(unsigned int, fmt->format.height,
+				 HSIT_MIN_SIZE, HSIT_MAX_SIZE);
+	format->field = V4L2_FIELD_NONE;
+	format->colorspace = V4L2_COLORSPACE_SRGB;
+
+	fmt->format = *format;
+
+	/* Propagate the format to the source pad. */
+	format = vsp1_entity_get_pad_format(&hsit->entity, config,
+					    HSIT_PAD_SOURCE);
+	*format = fmt->format;
+	format->code = hsit->inverse ? MEDIA_BUS_FMT_ARGB8888_1X32
+		     : MEDIA_BUS_FMT_AHSV8888_1X32;
+
+done:
+	mutex_unlock(&hsit->entity.lock);
+	return ret;
+}
+
+static const struct v4l2_subdev_pad_ops hsit_pad_ops = {
+	.init_cfg = vsp1_entity_init_cfg,
+	.enum_mbus_code = hsit_enum_mbus_code,
+	.enum_frame_size = hsit_enum_frame_size,
+	.get_fmt = vsp1_subdev_get_pad_format,
+	.set_fmt = hsit_set_format,
+};
+
+static const struct v4l2_subdev_ops hsit_ops = {
+	.pad    = &hsit_pad_ops,
+};
+
+/* -----------------------------------------------------------------------------
+ * VSP1 Entity Operations
+ */
+
+static void hsit_configure_stream(struct vsp1_entity *entity,
+				  struct vsp1_pipeline *pipe,
+				  struct vsp1_dl_list *dl,
+				  struct vsp1_dl_body *dlb)
+{
+	struct vsp1_hsit *hsit = to_hsit(&entity->subdev);
+
+	if (hsit->inverse)
+		vsp1_hsit_write(hsit, dlb, VI6_HSI_CTRL, VI6_HSI_CTRL_EN);
+	else
+		vsp1_hsit_write(hsit, dlb, VI6_HST_CTRL, VI6_HST_CTRL_EN);
+}
+
+static const struct vsp1_entity_operations hsit_entity_ops = {
+	.configure_stream = hsit_configure_stream,
+};
+
+/* -----------------------------------------------------------------------------
+ * Initialization and Cleanup
+ */
+
+struct vsp1_hsit *vsp1_hsit_create(struct vsp1_device *vsp1, bool inverse)
+{
+	struct vsp1_hsit *hsit;
+	int ret;
+
+	hsit = devm_kzalloc(vsp1->dev, sizeof(*hsit), GFP_KERNEL);
+	if (hsit == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	hsit->inverse = inverse;
+
+	hsit->entity.ops = &hsit_entity_ops;
+
+	if (inverse)
+		hsit->entity.type = VSP1_ENTITY_HSI;
+	else
+		hsit->entity.type = VSP1_ENTITY_HST;
+
+	ret = vsp1_entity_init(vsp1, &hsit->entity, inverse ? "hsi" : "hst",
+			       2, &hsit_ops,
+			       MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	return hsit;
+}