83 lines
2.6 KiB
Diff
83 lines
2.6 KiB
Diff
From 6454acd5537dfc272ef4568c34aaf0830b7fe686 Mon Sep 17 00:00:00 2001
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From: Adam Pigg <adam@piggz.co.uk>
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Date: Tue, 3 Jan 2023 18:52:04 +0000
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Subject: [PATCH 054/469] media: sun6i-csi: add V4L2_CAP_IO_MC capability
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Advertise the V4L2_CAP_IO_MC flag and update
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sun6i_csi_capture_enum_fmt to work with this capability.
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With the capability adverstised, the VIDIOC_ENUM_FMT ioctl
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implementation is updated to enumerate pixel formats depending
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on the supplied mbus_code. If the code is 0, all formats are
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enumerated, if not, only pixel formats that match with the supplied
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mbus_code are enumeratd.
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Signed-off-by: Adam Pigg <adam@piggz.co.uk>
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---
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.../sunxi/sun6i-csi/sun6i_csi_capture.c | 37 +++++++++++++++++--
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1 file changed, 34 insertions(+), 3 deletions(-)
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diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
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index 3863c468a573..c9bdd16b1d05 100644
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--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
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+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
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@@ -722,13 +722,43 @@ static int sun6i_csi_capture_enum_fmt(struct file *file, void *private,
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struct v4l2_fmtdesc *fmtdesc)
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{
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u32 index = fmtdesc->index;
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+ unsigned int i;
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if (index >= ARRAY_SIZE(sun6i_csi_capture_formats))
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return -EINVAL;
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- fmtdesc->pixelformat = sun6i_csi_capture_formats[index].pixelformat;
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+ for (i = 0; i < ARRAY_SIZE(sun6i_csi_capture_formats); i++) {
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+ const struct sun6i_csi_capture_format *format =
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+ &sun6i_csi_capture_formats[i];
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- return 0;
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+ /*
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+ * If a media bus code is specified, only consider formats that
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+ * match it.
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+ */
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+ if (fmtdesc->mbus_code) {
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+ unsigned int j;
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+
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+ if (!format->mbus_codes)
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+ continue;
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+
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+ for (j = 0; format->mbus_codes[j]; j++) {
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+ if (fmtdesc->mbus_code == format->mbus_codes[j])
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+ break;
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+ }
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+
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+ if (!format->mbus_codes[j])
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+ continue;
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+ }
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+
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+ if (index == 0) {
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+ fmtdesc->pixelformat = format->pixelformat;
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+ return 0;
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+ }
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+
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+ index--;
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+ }
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+
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+ return -EINVAL;
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}
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static int sun6i_csi_capture_g_fmt(struct file *file, void *private,
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@@ -1034,7 +1064,8 @@ int sun6i_csi_capture_setup(struct sun6i_csi_device *csi_dev)
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strscpy(video_dev->name, SUN6I_CSI_CAPTURE_NAME,
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sizeof(video_dev->name));
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- video_dev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
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+ video_dev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING
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+ | V4L2_CAP_IO_MC;
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video_dev->vfl_dir = VFL_DIR_RX;
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video_dev->release = video_device_release_empty;
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video_dev->fops = &sun6i_csi_capture_fops;
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--
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2.34.1
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