From patchwork Fri Feb 9 16:48:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 13551583 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D0A07691B for ; Fri, 9 Feb 2024 16:48:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707497331; cv=none; b=VdE+Lwh8wNWpM3KbDl/TsQ6hH7KZkKQ1A2u4PYScJ5mfQaPe60WRZd6YlHCVVMRW2V8Skoet+XdgkudS6hqJMoJhPcLfCZH694QTJbiwXOTWkosqwuUkd7rhi0kaFouLLI7NIClLj80gEehUNB7S8k087ZKtkJPmwq4Wt9k/J8g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707497331; c=relaxed/simple; bh=ZGU1VA9GBaD+RhQlH+sll9LBO9QBQ0ojmgtgWRLM5zg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nyKp/VvuWRozAnC8xgDMuUz8/Q7MwZojOGthe6+BOBwF2CMnXgdXg/n8V1aDqNOdYbX/ESONU53MDHpxXwmvPAeCXWtlgRWZ5dJMNl7wa/DVn+eBKYkOMjisi7/DhMmvsBNpMJaGBxIxE6cWxdmQpGLzhhVM6ku5qRXuh0NiXEI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=th9YduPC; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="th9YduPC" Received: from localhost.localdomain (unknown [IPv6:2001:b07:5d2e:52c9:cc1e:e404:491f:e6ea]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id D5BDCD01; Fri, 9 Feb 2024 17:47:19 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1707497240; bh=ZGU1VA9GBaD+RhQlH+sll9LBO9QBQ0ojmgtgWRLM5zg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=th9YduPC72ScDIdHI0U7aP5vuJJSQ6dENbuDrwIhb16r4r8v/7T291MmTi6se0WF8 GUz1ywPflX7ZbS6B8NEcVaXMTaj6uAAoN6l21DYdNQ5w8tZWEkVXq8UomfBlR+Dll4 Ogc+KDFB5kcVx/3ZgqYA7uqL/Zf4vJRpigd6dLSs= From: Jacopo Mondi To: Linux Media Mailing List Cc: Jacopo Mondi , David Plowman , Naushir Patuck , Nick Hollinghurst , Dave Stevenson , Tomi Valkeinen , Laurent Pinchart , Kieran Bingham , Sakari Ailus , Hans Verkuil , Mauro Carvalho Chehab Subject: [PATCH 1/8] media: Add a pixel format for MIPI packed 12bit luma only. Date: Fri, 9 Feb 2024 17:48:16 +0100 Message-ID: <20240209164825.166800-2-jacopo.mondi@ideasonboard.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240209164825.166800-1-jacopo.mondi@ideasonboard.com> References: <20240209164825.166800-1-jacopo.mondi@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Dave Stevenson This is the format used by monochrome 12bit image sensors. Signed-off-by: Dave Stevenson Signed-off-by: Jacopo Mondi --- .../userspace-api/media/v4l/pixfmt-y12p.rst | 38 +++++++++++++++++++ .../userspace-api/media/v4l/yuv-formats.rst | 1 + drivers/media/v4l2-core/v4l2-ioctl.c | 1 + include/uapi/linux/videodev2.h | 1 + 4 files changed, 41 insertions(+) create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-y12p.rst diff --git a/Documentation/userspace-api/media/v4l/pixfmt-y12p.rst b/Documentation/userspace-api/media/v4l/pixfmt-y12p.rst new file mode 100644 index 000000000000..b2eb4a72724d --- /dev/null +++ b/Documentation/userspace-api/media/v4l/pixfmt-y12p.rst @@ -0,0 +1,38 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later + +.. _V4L2-PIX-FMT-Y12P: + +****************************** +V4L2_PIX_FMT_Y12P ('Y12P') +****************************** + +Grey-scale image as a MIPI RAW12 packed array + + +Description +=========== + +This is a packed grey-scale image format with a depth of 12 bits per +pixel. Two consecutive pixels are packed into 3 bytes. The first 2 bytes +contain the 8 high order bits of the pixels, and the 3rd byte contains the 4 +least significants bits of each pixel, in the same order. + +**Byte Order.** +Each cell is one byte. + +.. tabularcolumns:: |p{2.2cm}|p{1.2cm}|p{1.2cm}|p{3.1cm}| + + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 2 1 1 1 + + + - - start + 0: + - Y'\ :sub:`00high` + - Y'\ :sub:`01high` + - Y'\ :sub:`01low`\ (bits 7--4) + + Y'\ :sub:`00low`\ (bits 3--0) + diff --git a/Documentation/userspace-api/media/v4l/yuv-formats.rst b/Documentation/userspace-api/media/v4l/yuv-formats.rst index 24b34cdfa6fe..7c9ccfdd94cd 100644 --- a/Documentation/userspace-api/media/v4l/yuv-formats.rst +++ b/Documentation/userspace-api/media/v4l/yuv-formats.rst @@ -267,6 +267,7 @@ image. pixfmt-packed-yuv pixfmt-yuv-planar pixfmt-yuv-luma + pixfmt-y12p pixfmt-y8i pixfmt-y12i pixfmt-uv8 diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 33076af4dfdb..483498c55899 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1311,6 +1311,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break; case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break; case V4L2_PIX_FMT_Y10P: descr = "10-bit Greyscale (MIPI Packed)"; break; + case V4L2_PIX_FMT_Y12P: descr = "12-bit Greyscale (MIPI Packed)"; break; case V4L2_PIX_FMT_IPU3_Y10: descr = "10-bit greyscale (IPU3 Packed)"; break; case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break; case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index a8015e5e7fa4..11ebf9b22ccb 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -598,6 +598,7 @@ struct v4l2_pix_format { /* Grey bit-packed formats */ #define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */ #define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale, MIPI RAW10 packed */ +#define V4L2_PIX_FMT_Y12P v4l2_fourcc('Y', '1', '2', 'P') /* 12 Greyscale, MIPI RAW12 packed */ #define V4L2_PIX_FMT_IPU3_Y10 v4l2_fourcc('i', 'p', '3', 'y') /* IPU3 packed 10-bit greyscale */ /* Palette formats */