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openwrt/target/linux/bcm27xx/patches-6.1/950-0425-media-i2c-arducam_64mp-Advertise-embedded-data-node-.patch
Álvaro Fernández Rojas 793f8ab62c bcm27xx: 6.1: add kernel patches 
Add kernel patches for version 6.1.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-06-09 19:12:30 +02:00

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From 8acf47ea3641126ed10ec54a8f6d72622dd2c61e Mon Sep 17 00:00:00 2001
From: Lee Jackson <info@arducam.com>
Date: Wed, 18 May 2022 15:18:59 +0800
Subject: [PATCH] media: i2c: arducam_64mp: Advertise embedded data
node on media pad 1
This commit updates the arducam_64mp driver to adverise support for
embedded data streams.
The arducam_64mp sensor subdevice overloads the media pad to differentiate
between image stream (pad 0) and embedded data stream (pad 1) when
performing the v4l2_subdev_pad_ops functions.
Signed-off-by: Lee Jackson <info@arducam.com>
---
drivers/media/i2c/arducam_64mp.c | 146 ++++++++++++++++++++++---------
1 file changed, 107 insertions(+), 39 deletions(-)
--- a/drivers/media/i2c/arducam_64mp.c
+++ b/drivers/media/i2c/arducam_64mp.c
@@ -94,6 +94,16 @@
#define ARDUCAM_64MP_TEST_PATTERN_B_DEFAULT 0
#define ARDUCAM_64MP_TEST_PATTERN_GB_DEFAULT 0
+/* Embedded metadata stream structure */
+#define ARDUCAM_64MP_EMBEDDED_LINE_WIDTH 16384
+#define ARDUCAM_64MP_NUM_EMBEDDED_LINES 1
+
+enum pad_types {
+ IMAGE_PAD,
+ METADATA_PAD,
+ NUM_PADS
+};
+
/* ARDUCAM_64MP native and active pixel array size. */
#define ARDUCAM_64MP_NATIVE_WIDTH 9344U
#define ARDUCAM_64MP_NATIVE_HEIGHT 7032U
@@ -1273,7 +1283,7 @@ static const char * const arducam_64mp_s
struct arducam_64mp {
struct v4l2_subdev sd;
- struct media_pad pad;
+ struct media_pad pad[NUM_PADS];
unsigned int fmt_code;
@@ -1406,7 +1416,9 @@ static int arducam_64mp_open(struct v4l2
{
struct arducam_64mp *arducam_64mp = to_arducam_64mp(sd);
struct v4l2_mbus_framefmt *try_fmt_img =
- v4l2_subdev_get_try_format(sd, fh->state, 0);
+ v4l2_subdev_get_try_format(sd, fh->state, IMAGE_PAD);
+ struct v4l2_mbus_framefmt *try_fmt_meta =
+ v4l2_subdev_get_try_format(sd, fh->state, METADATA_PAD);
struct v4l2_rect *try_crop;
mutex_lock(&arducam_64mp->mutex);
@@ -1417,8 +1429,14 @@ static int arducam_64mp_open(struct v4l2
try_fmt_img->code = arducam_64mp_get_format_code(arducam_64mp);
try_fmt_img->field = V4L2_FIELD_NONE;
+ /* Initialize try_fmt for the embedded metadata pad */
+ try_fmt_meta->width = ARDUCAM_64MP_EMBEDDED_LINE_WIDTH;
+ try_fmt_meta->height = ARDUCAM_64MP_NUM_EMBEDDED_LINES;
+ try_fmt_meta->code = MEDIA_BUS_FMT_SENSOR_DATA;
+ try_fmt_meta->field = V4L2_FIELD_NONE;
+
/* Initialize try_crop */
- try_crop = v4l2_subdev_get_try_crop(sd, fh->state, 0);
+ try_crop = v4l2_subdev_get_try_crop(sd, fh->state, IMAGE_PAD);
try_crop->left = ARDUCAM_64MP_PIXEL_ARRAY_LEFT;
try_crop->top = ARDUCAM_64MP_PIXEL_ARRAY_TOP;
try_crop->width = ARDUCAM_64MP_PIXEL_ARRAY_WIDTH;
@@ -1574,10 +1592,20 @@ static int arducam_64mp_enum_mbus_code(s
{
struct arducam_64mp *arducam_64mp = to_arducam_64mp(sd);
- if (code->index > 0)
+ if (code->pad >= NUM_PADS)
return -EINVAL;
- code->code = arducam_64mp_get_format_code(arducam_64mp);
+ if (code->pad == IMAGE_PAD) {
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = arducam_64mp_get_format_code(arducam_64mp);
+ } else {
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_SENSOR_DATA;
+ }
return 0;
}
@@ -1588,16 +1616,29 @@ static int arducam_64mp_enum_frame_size(
{
struct arducam_64mp *arducam_64mp = to_arducam_64mp(sd);
- if (fse->index >= ARRAY_SIZE(supported_modes))
+ if (fse->pad >= NUM_PADS)
return -EINVAL;
- if (fse->code != arducam_64mp_get_format_code(arducam_64mp))
- return -EINVAL;
+ if (fse->pad == IMAGE_PAD) {
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ if (fse->code != arducam_64mp_get_format_code(arducam_64mp))
+ return -EINVAL;
+
+ fse->min_width = supported_modes[fse->index].width;
+ fse->max_width = fse->min_width;
+ fse->min_height = supported_modes[fse->index].height;
+ fse->max_height = fse->min_height;
+ } else {
+ if (fse->code != MEDIA_BUS_FMT_SENSOR_DATA || fse->index > 0)
+ return -EINVAL;
- fse->min_width = supported_modes[fse->index].width;
- fse->max_width = fse->min_width;
- fse->min_height = supported_modes[fse->index].height;
- fse->max_height = fse->min_height;
+ fse->min_width = ARDUCAM_64MP_EMBEDDED_LINE_WIDTH;
+ fse->max_width = fse->min_width;
+ fse->min_height = ARDUCAM_64MP_NUM_EMBEDDED_LINES;
+ fse->max_height = fse->min_height;
+ }
return 0;
}
@@ -1623,13 +1664,22 @@ arducam_64mp_update_image_pad_format(str
arducam_64mp_reset_colorspace(&fmt->format);
}
+static void
+arducam_64mp_update_metadata_pad_format(struct v4l2_subdev_format *fmt)
+{
+ fmt->format.width = ARDUCAM_64MP_EMBEDDED_LINE_WIDTH;
+ fmt->format.height = ARDUCAM_64MP_NUM_EMBEDDED_LINES;
+ fmt->format.code = MEDIA_BUS_FMT_SENSOR_DATA;
+ fmt->format.field = V4L2_FIELD_NONE;
+}
+
static int arducam_64mp_get_pad_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct arducam_64mp *arducam_64mp = to_arducam_64mp(sd);
- if (fmt->pad != 0)
+ if (fmt->pad >= NUM_PADS)
return -EINVAL;
mutex_lock(&arducam_64mp->mutex);
@@ -1639,14 +1689,20 @@ static int arducam_64mp_get_pad_format(s
v4l2_subdev_get_try_format(&arducam_64mp->sd, sd_state,
fmt->pad);
/* update the code which could change due to vflip or hflip: */
- try_fmt->code = arducam_64mp_get_format_code(arducam_64mp);
+ try_fmt->code = fmt->pad == IMAGE_PAD ?
+ arducam_64mp_get_format_code(arducam_64mp) :
+ MEDIA_BUS_FMT_SENSOR_DATA;
fmt->format = *try_fmt;
} else {
- arducam_64mp_update_image_pad_format(arducam_64mp,
- arducam_64mp->mode,
- fmt);
- fmt->format.code =
- arducam_64mp_get_format_code(arducam_64mp);
+ if (fmt->pad == IMAGE_PAD) {
+ arducam_64mp_update_image_pad_format(arducam_64mp,
+ arducam_64mp->mode,
+ fmt);
+ fmt->format.code =
+ arducam_64mp_get_format_code(arducam_64mp);
+ } else {
+ arducam_64mp_update_metadata_pad_format(fmt);
+ }
}
mutex_unlock(&arducam_64mp->mutex);
@@ -1714,28 +1770,39 @@ static int arducam_64mp_set_pad_format(s
const struct arducam_64mp_mode *mode;
struct arducam_64mp *arducam_64mp = to_arducam_64mp(sd);
- if (fmt->pad != 0)
+ if (fmt->pad >= NUM_PADS)
return -EINVAL;
mutex_lock(&arducam_64mp->mutex);
- /* Bayer order varies with flips */
- fmt->format.code = arducam_64mp_get_format_code(arducam_64mp);
-
- mode = v4l2_find_nearest_size(supported_modes,
- ARRAY_SIZE(supported_modes),
- width, height,
- fmt->format.width,
- fmt->format.height);
- arducam_64mp_update_image_pad_format(arducam_64mp, mode, fmt);
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- framefmt = v4l2_subdev_get_try_format(sd, sd_state,
- fmt->pad);
- *framefmt = fmt->format;
+ if (fmt->pad == IMAGE_PAD) {
+ /* Bayer order varies with flips */
+ fmt->format.code = arducam_64mp_get_format_code(arducam_64mp);
+
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes),
+ width, height,
+ fmt->format.width,
+ fmt->format.height);
+ arducam_64mp_update_image_pad_format(arducam_64mp, mode, fmt);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ framefmt = v4l2_subdev_get_try_format(sd, sd_state,
+ fmt->pad);
+ *framefmt = fmt->format;
+ } else {
+ arducam_64mp->mode = mode;
+ arducam_64mp->fmt_code = fmt->format.code;
+ arducam_64mp_set_framing_limits(arducam_64mp);
+ }
} else {
- arducam_64mp->mode = mode;
- arducam_64mp->fmt_code = fmt->format.code;
- arducam_64mp_set_framing_limits(arducam_64mp);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ framefmt = v4l2_subdev_get_try_format(sd, sd_state,
+ fmt->pad);
+ *framefmt = fmt->format;
+ } else {
+ /* Only one embedded data mode is supported */
+ arducam_64mp_update_metadata_pad_format(fmt);
+ }
}
mutex_unlock(&arducam_64mp->mutex);
@@ -2329,10 +2396,11 @@ static int arducam_64mp_probe(struct i2c
arducam_64mp->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
/* Initialize source pads */
- arducam_64mp->pad.flags = MEDIA_PAD_FL_SOURCE;
+ arducam_64mp->pad[IMAGE_PAD].flags = MEDIA_PAD_FL_SOURCE;
+ arducam_64mp->pad[METADATA_PAD].flags = MEDIA_PAD_FL_SOURCE;
- ret = media_entity_pads_init(&arducam_64mp->sd.entity, 1,
- &arducam_64mp->pad);
+ ret = media_entity_pads_init(&arducam_64mp->sd.entity, NUM_PADS,
+ arducam_64mp->pad);
if (ret) {
dev_err(dev, "failed to init entity pads: %d\n", ret);
goto error_handler_free;
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