openwrt/target/linux/bcm27xx/patches-6.1/950-1212-media-rp1-cfe-Improve-link-validation-for-metadata.patch
Marty Jones 2e715fb4fc bcm27xx: update 6.1 patches to latest version
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y

Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-01-25 17:46:45 +01:00

62 lines
2.2 KiB
Diff

From e0f52ccfe1e383622fb30708acd38921e84fbff4 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date: Tue, 3 Oct 2023 14:29:44 +0300
Subject: [PATCH] media: rp1: cfe: Improve link validation for metadata
Improve the link validation for metadata by:
- Allowing capture buffers that are larger than the incoming frame
(instead of requiring exact match).
- Instead of assuming that a metadata unit ("pixel") is 8 bits, use
find_format_by_code() to get the format and use the bit depth from
there. E.g. bit depth for RAW10 metadata will be 10 bits, when we
move to the upstream metadata formats.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
.../media/platform/raspberrypi/rp1_cfe/cfe.c | 32 +++++++++++++------
1 file changed, 22 insertions(+), 10 deletions(-)
--- a/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c
+++ b/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c
@@ -1715,17 +1715,29 @@ static int cfe_video_link_validate(struc
}
} else if (is_csi2_node(node) && is_meta_output_node(node)) {
struct v4l2_meta_format *meta_fmt = &node->meta_fmt.fmt.meta;
+ const struct cfe_fmt *fmt;
+ u32 source_size;
- if (source_fmt->width * source_fmt->height !=
- meta_fmt->buffersize ||
- source_fmt->code != MEDIA_BUS_FMT_SENSOR_DATA) {
- cfe_err("WARNING: Wrong metadata width/height/code %ux%u %08x (remote pad set to %ux%u %08x)\n",
- meta_fmt->buffersize, 1,
- MEDIA_BUS_FMT_SENSOR_DATA,
- source_fmt->width,
- source_fmt->height,
- source_fmt->code);
- /* TODO: this should throw an error eventually */
+ fmt = find_format_by_code(source_fmt->code);
+ if (!fmt || fmt->fourcc != meta_fmt->dataformat) {
+ cfe_err("Metadata format mismatch!\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ source_size = DIV_ROUND_UP(source_fmt->width * source_fmt->height * fmt->depth, 8);
+
+ if (source_fmt->code != MEDIA_BUS_FMT_SENSOR_DATA) {
+ cfe_err("Bad metadata mbus format\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (source_size > meta_fmt->buffersize) {
+ cfe_err("Metadata buffer too small: %u < %u\n",
+ meta_fmt->buffersize, source_size);
+ ret = -EINVAL;
+ goto out;
}
}