From nobody Thu Oct 9 16:40:43 2025 Received: from mail-lf1-f53.google.com (mail-lf1-f53.google.com [209.85.167.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 723E12DBF63 for ; Tue, 17 Jun 2025 14:42:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750171361; cv=none; b=odhnsg3e+j9gkVXRK8oK9HoR35qjYK3HZBMy/3TrSUGjb4H8bkEPCvmMNekbdWpV5sasjL9IguSTN0OsUGqkGr0l5Aa7Hdfxq5Cac+9tPuGJ9zZnXrq16onxEDNVlkjfldqzQpkGUf/SkIty32/X4Rpw4aRn94moHFIsPwU6D6E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750171361; c=relaxed/simple; bh=VUOlaRTP4eV8iVL8FnrRm8GJrgvq6sOIU/fSE8Vhe4Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=O36gn/K1EBKl/HlkmZAlCZKz+M17ioX6EOWHGkG71gox8RtjTjrT2mnYt28AMx5EjSGaWBBxESBN01bJSYZiWhjahsHj8/ZSU/weSMM5YMXdavRZQxIvaBih9pvwgcWiNxzKRyS/75QamD03O4xCna/pysgjJqr6+lPRjcDdGDI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=nMkrDL9b; arc=none smtp.client-ip=209.85.167.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="nMkrDL9b" Received: by mail-lf1-f53.google.com with SMTP id 2adb3069b0e04-5535652f42cso5780793e87.2 for ; Tue, 17 Jun 2025 07:42:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1750171354; x=1750776154; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=0XZ3dPW1w4QCfr6i2hU3GgbqSe/1fko3hczMWWZK2cI=; b=nMkrDL9b9Aj7W8cXp2+ZfjIEl5ySuRlEw4JPa/03Y/hMzsdGfFCB/w8B8LbzxOM950 7qs9YofkJX+euJXtcvSirPTjpQMa03Qd5cXJA9zP+XvJ4htR27F7lsSHiwxcxD6JGu0Y MDdQYZgjeIsINT/VlnShBn/WM6YfJbzYMtiaY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750171354; x=1750776154; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=0XZ3dPW1w4QCfr6i2hU3GgbqSe/1fko3hczMWWZK2cI=; b=OKF1wuMMqEhnvYAnwlXyuj7enXUMSDaa61dyj760M9lvX3lPffs9Ke3NWXPOFFRmEf KbNhMvOtPDZREssKupjB5m/OnOiJ3SuxablR48Wpr/eAsdPcdr+kyvGMEndaak3JUCHd I2Y+jofEoELucDvmsiGTSe6lpNLCm45EB9fabs689QAb46Eiaw3Ese1YUKePuOH6xofS 30EVjZ6Ypaz+6gCb9TIj6Ah3QRhpf8afjdoeZFamts7H1pyU5RK/wnwUPKJ9rBkrM8yw pK5ckt/9T3obho9TH6sWa8HjqweoNCQyOdLuYnQL3kd1DiLjN3xgRSPAUnZrsDNgrSFA 3jHg== X-Forwarded-Encrypted: i=1; AJvYcCVxWPuo0P994ATcv2JXuqIb2OZVQJJPUjt8FsBwjbJyHhjpwpGmBx1Jn0Y4MWAyWMvbpx5H4SZL5lvLibM=@vger.kernel.org X-Gm-Message-State: AOJu0YxKzhIIWC/utMPwk9zuVaSQG75sd4Tpa/7HCvQ2N1tKyYPbcmLw 0MkvZa5HXv7Yksv+C9jP19tnUsR0l0qFcIPDMs4IxyATUfVE2SKRJkylLjPbz4srJYnCJUUFdo6 sLz0= X-Gm-Gg: ASbGncvHxXSTtjbrjp4VCikTztEqrNubhRurwzyJ2B664fvcmkmKYtq361luTXq38sn VKb6oZqrSI/qVblKyRRlXdQea96rlat6EZBFH9JKYBvOIB+T3pDWEYhKpi1NibrgpZRkMkOlCKo KfMbVE8EeFe34oybJwEhsVnkL9L2vyuvI7DKvgsdMMlxbYLa55Z+7wvDL2gqjrTrFLiW/EvbeRq FCIYuxv8Ss/pdS68GAx/UROdNH53u8gmkmqooCvWlfo5M9hBuJwPPowVpMhTc88OrdNpsRz3+Xb pzmsOlPoX6SGLgEMiOngNcPM78xaT/pk/yQpdu2aZ/6g5d6dhme8xZWzlmAUhm+ayIjh32kxanZ N8tZ9fTyHQmjdVRsWWOrJ10e0GOGOHC3XSyxH+pitTQ== X-Google-Smtp-Source: AGHT+IG1sZuE/Nfhe9B34FOf/eWJmAMXL0Jv1BzWgBFgKFKiF4bV662uimtyRZWQUXOB9gPR6hlDog== X-Received: by 2002:a05:6512:3b9d:b0:553:37e7:867a with SMTP id 2adb3069b0e04-553b6f4d01bmr3097555e87.49.1750171354119; Tue, 17 Jun 2025 07:42:34 -0700 (PDT) Received: from ribalda.c.googlers.com (166.141.88.34.bc.googleusercontent.com. [34.88.141.166]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-553ae234437sm1814992e87.53.2025.06.17.07.42.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Jun 2025 07:42:33 -0700 (PDT) From: Ricardo Ribalda Date: Tue, 17 Jun 2025 14:42:24 +0000 Subject: [PATCH v7 3/5] media: uvcvideo: Introduce dev->meta_formats Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250617-uvc-meta-v7-3-9c50623e2286@chromium.org> References: <20250617-uvc-meta-v7-0-9c50623e2286@chromium.org> In-Reply-To: <20250617-uvc-meta-v7-0-9c50623e2286@chromium.org> To: Laurent Pinchart , Mauro Carvalho Chehab , Guennadi Liakhovetski , Greg Kroah-Hartman , Hans de Goede , Hans de Goede Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.14.2 Right now, there driver supports devices with one or two metadata formats. Prepare it to support more than two metadata formats. This is achieved with the introduction of a new field `meta_formats`, that contains the array of metadata formats supported by the device, in the order expected by userspace. Signed-off-by: Ricardo Ribalda --- drivers/media/usb/uvc/uvc_driver.c | 7 ++++++ drivers/media/usb/uvc/uvc_metadata.c | 46 ++++++++++++++++++++++++++++++--= ---- drivers/media/usb/uvc/uvcvideo.h | 2 ++ 3 files changed, 48 insertions(+), 7 deletions(-) diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc= _driver.c index 62eb45435d8bec5c955720ecb46fb8936871e6cc..9de5abb43e19d9e876cddc5d712= 4592953db89ac 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -2315,6 +2315,13 @@ static int uvc_probe(struct usb_interface *intf, goto error; } =20 + ret =3D uvc_meta_init(dev); + if (ret < 0) { + dev_err(&dev->udev->dev, + "Error initializing the metadata formats (%d)\n", ret); + goto error; + } + if (dev->quirks & UVC_QUIRK_NO_RESET_RESUME) udev->quirks &=3D ~USB_QUIRK_RESET_RESUME; =20 diff --git a/drivers/media/usb/uvc/uvc_metadata.c b/drivers/media/usb/uvc/u= vc_metadata.c index 82de7781f5b6b70c5ba16bcba9e0741231231904..bc84e849174397f41d1e20bf890= a876eeb5a9c67 100644 --- a/drivers/media/usb/uvc/uvc_metadata.c +++ b/drivers/media/usb/uvc/uvc_metadata.c @@ -64,14 +64,20 @@ static int uvc_meta_v4l2_try_format(struct file *file, = void *fh, struct uvc_device *dev =3D stream->dev; struct v4l2_meta_format *fmt =3D &format->fmt.meta; u32 fmeta =3D fmt->dataformat; + u32 i; =20 if (format->type !=3D vfh->vdev->queue->type) return -EINVAL; =20 + for (i =3D 0; (fmeta !=3D dev->meta_formats[i]) && dev->meta_formats[i]; + i++) + ; + if (!dev->meta_formats[i]) + fmeta =3D V4L2_META_FMT_UVC; + memset(fmt, 0, sizeof(*fmt)); =20 - fmt->dataformat =3D fmeta =3D=3D dev->info->meta_format - ? fmeta : V4L2_META_FMT_UVC; + fmt->dataformat =3D fmeta; fmt->buffersize =3D UVC_METADATA_BUF_SIZE; =20 return 0; @@ -112,17 +118,21 @@ static int uvc_meta_v4l2_enum_formats(struct file *fi= le, void *fh, struct v4l2_fh *vfh =3D file->private_data; struct uvc_streaming *stream =3D video_get_drvdata(vfh->vdev); struct uvc_device *dev =3D stream->dev; - u32 index =3D fdesc->index; + u32 i; + + if (fdesc->type !=3D vfh->vdev->queue->type) + return -EINVAL; =20 - if (fdesc->type !=3D vfh->vdev->queue->type || - index > 1U || (index && !dev->info->meta_format)) + for (i =3D 0; (i < fdesc->index) && dev->meta_formats[i]; i++) + ; + if (!dev->meta_formats[i]) return -EINVAL; =20 memset(fdesc, 0, sizeof(*fdesc)); =20 fdesc->type =3D vfh->vdev->queue->type; - fdesc->index =3D index; - fdesc->pixelformat =3D index ? dev->info->meta_format : V4L2_META_FMT_UVC; + fdesc->index =3D i; + fdesc->pixelformat =3D dev->meta_formats[i]; =20 return 0; } @@ -174,3 +184,25 @@ int uvc_meta_register(struct uvc_streaming *stream) V4L2_BUF_TYPE_META_CAPTURE, &uvc_meta_fops, &uvc_meta_ioctl_ops); } + +int uvc_meta_init(struct uvc_device *dev) +{ + static const u32 uvch_only[] =3D {V4L2_META_FMT_UVC, 0}; + static const u32 d4xx_format[] =3D {V4L2_META_FMT_UVC, V4L2_META_FMT_D4XX, + 0}; + + switch (dev->info->meta_format) { + case V4L2_META_FMT_D4XX: + dev->meta_formats =3D d4xx_format; + break; + case 0: + dev->meta_formats =3D uvch_only; + break; + default: + dev_err(&dev->udev->dev, "Unknown metadata format 0x%x\n", + dev->info->meta_format); + return -EINVAL; + } + + return 0; +} diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvi= deo.h index 11d6e3c2ebdfbabd7bbe5722f88ff85f406d9bb6..502f1d5608637cd28ce6f01aee3= 1c4f5df160081 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -581,6 +581,7 @@ struct uvc_device { char name[32]; =20 const struct uvc_device_info *info; + const u32 *meta_formats; /* Zero-ended list of meta formats */ =20 atomic_t nmappings; =20 @@ -751,6 +752,7 @@ int uvc_query_ctrl(struct uvc_device *dev, u8 query, u8= unit, void uvc_video_clock_update(struct uvc_streaming *stream, struct vb2_v4l2_buffer *vbuf, struct uvc_buffer *buf); +int uvc_meta_init(struct uvc_device *dev); int uvc_meta_register(struct uvc_streaming *stream); =20 int uvc_register_video_device(struct uvc_device *dev, --=20 2.50.0.rc2.692.g299adb8693-goog