From patchwork Fri Jul 5 11:07:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Edgar Thier X-Patchwork-Id: 11032469 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6D68713B1 for ; Fri, 5 Jul 2019 11:07:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 59EB428992 for ; Fri, 5 Jul 2019 11:07:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 48A3428A0E; Fri, 5 Jul 2019 11:07:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5481C28992 for ; Fri, 5 Jul 2019 11:07:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727483AbfGELHt (ORCPT ); Fri, 5 Jul 2019 07:07:49 -0400 Received: from wout4-smtp.messagingengine.com ([64.147.123.20]:55985 "EHLO wout4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727066AbfGELHt (ORCPT ); Fri, 5 Jul 2019 07:07:49 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.west.internal (Postfix) with ESMTP id 3838C4DC; Fri, 5 Jul 2019 07:07:48 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Fri, 05 Jul 2019 07:07:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :message-id:mime-version:subject:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=A4upV78wronQpeOg/ bwyrt1Wq8W9ulzBqRuG0BXA3m8=; b=ac9NUROJ/BdOb9G5HNyyarcaBmDf7NA9Y KqlUH2q+QGE12axEZdrpGQQzKgR99IRTMSBTTzhAo/jdG3mNA1ORMpHxcnFAuiX3 eqzMoRSrwzJuaTJxhjaSZNpqfxLNF39nYuAjrxnFwYtRjBqGOwbIieoBI8wJ95uj vVV/gsNQ7kq0FWS2YUfNTaATZe8Qkh4/Uh1hEpdLS7OTuB2wsu2sV1KXvbkCN7M2 FHQEt0JKLB/iR55mboP3xPAwmllgMra/OXJXoChZbTxeghkfw3pcWr9Qf8cJoSnZ 1crvMNsYkYFktx8O+gXyd0UeOFn+4M8yOzFg8zCs3XcNob6ma2VBg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduvddrfeeggdefiecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgggfestdekredtredttdenucfhrhhomhepgfgughgrrhcuvfhh ihgvrhcuoehinhhfohesvggughgrrhhthhhivghrrdhnvghtqeenucffohhmrghinhepvg hmvhgrrdhorhhgpdhvihhsihhonhhonhhlihhnvgdrohhrghenucfkphepfedurddvtdel rdelhedrvdegvdenucfrrghrrghmpehmrghilhhfrhhomhepihhnfhhosegvughgrghrth hhihgvrhdrnhgvthenucevlhhushhtvghrufhiiigvpedt X-ME-Proxy: Received: from localhost.localdomain (unknown [31.209.95.242]) by mail.messagingengine.com (Postfix) with ESMTPA id 1D89A380076; Fri, 5 Jul 2019 07:07:46 -0400 (EDT) From: Edgar Thier To: laurent.pinchart@ideasonboard.com, sakari.ailus@iki.fi Cc: Edgar Thier , Linux Media Mailing List Subject: [PATCH 1/2] v4l: Add 12-bit raw bayer linear packed formats Date: Fri, 5 Jul 2019 13:07:23 +0200 Message-Id: <20190705110723.29685-1-info@edgarthier.net> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP These formats are compressed 12-bit raw bayer formats with four different pixel orders. The pixel follow one another without any padding, thus are packed in a 'linear' fashion. Signed-off-by: Edgar Thier --- Documentation/media/uapi/v4l/pixfmt-rgb.rst | 1 + .../media/uapi/v4l/pixfmt-srggb12lp.rst | 60 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++ include/uapi/linux/videodev2.h | 7 +++ 4 files changed, 72 insertions(+) create mode 100644 Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst diff --git a/Documentation/media/uapi/v4l/pixfmt-rgb.rst b/Documentation/media/uapi/v4l/pixfmt-rgb.rst index 48ab80024835..9efa500c02dc 100644 --- a/Documentation/media/uapi/v4l/pixfmt-rgb.rst +++ b/Documentation/media/uapi/v4l/pixfmt-rgb.rst @@ -26,5 +26,6 @@ RGB Formats pixfmt-srggb10-ipu3 pixfmt-srggb12 pixfmt-srggb12p + pixfmt-srggb12lp pixfmt-srggb14p pixfmt-srggb16 diff --git a/Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst b/Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst new file mode 100644 index 000000000000..13d32ad92c73 --- /dev/null +++ b/Documentation/media/uapi/v4l/pixfmt-srggb12lp.rst @@ -0,0 +1,60 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _v4l2-pix-fmt-sgrbg12lp: +.. _v4l2-pix-fmt-srggb12lp: +.. _v4l2-pix-fmt-sbggr12lp: +.. _v4l2-pix-fmt-sgbrg12lp: + +********************************************************************************************************************************** +V4L2_PIX_FMT_SBGGR12LP ('BGCp'), V4L2_PIX_FMT_SGBRG12LP ('GBCp'), V4L2_PIX_FMT_SGRBG12LP ('GRCp'), V4L2_PIX_FMT_SRGGB12LP ('RGCp') +********************************************************************************************************************************** + +12-bit Bayer formats + +Description +=========== + +These four pixel formats are used by industrial cameras, often in conjunction +with UsbVision (see https://www.visiononline.org/userAssets/aiaUploads/file/USB3_Vision_Specification_v1-0-1.pdf). + +The formats are equal to the Genicam PFNC Bayer12p formats +(see https://www.emva.org/wp-content/uploads/GenICam_PFNC_2_3.pdf). + +They are raw sRGB / Bayer formats with 12 bits +per sample with 3 bytes for every 2 pixels. + +The format is little endian. + +Below is an example of a small image in V4L2_PIX_FMT_PFNC_BAYERBG12P format. + +**Byte Order.** +Each cell is one byte. + +.. tabularcolumns:: |p{0.8cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}|p{4.0cm}| + +.. flat-table:: + + * - start + 0: + - B\ :sub:`00low` + - G\ :sub:`01low`\ (bits 7--4) + B\ :sub:`00high`\ (bits 0--3) + - G\ :sub:`01high`\ + + * - start + 6: + - G\ :sub:`02low` + - R\ :sub:`03low`\ (bits 7--4) + G\ :sub:`02high`\ (bits 0--3) + - R\ :sub:`03high` + + * - start + 12: + - B\ :sub:`04low` + - G\ :sub:`05low`\ (bits 7--4) + B\ :sub:`04high`\ (bits 0--3) + - G\ :sub:`05high` + + * - start + 24: + - G\ :sub:`06low` + - R\ :sub:`07low`\ (bits 7--4) + G\ :sub:`06high`\ (bits 0--3) + - R\ :sub:`07high` + diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index ac87c3e37280..98c3c7fde046 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1275,6 +1275,10 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break; case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break; case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break; + case V4L2_PIX_FMT_SGBRG12LP: descr = "12-bit Bayer GBGB/RGRG Linear Packed"; break; + case V4L2_PIX_FMT_SGRBG12LP: descr = "12-bit Bayer GRGR/BGBG Linear Packed"; break; + case V4L2_PIX_FMT_SBGGR12LP: descr = "12-bit Bayer BGBG/GRGR Linear Packed"; break; + case V4L2_PIX_FMT_SRGGB12LP: descr = "12-bit Bayer RGRG/GBGB Linear Packed"; break; case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break; case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break; case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 1050a75fb7ef..f0b81b870f29 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -646,6 +646,13 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12 GBGB.. RGRG.. */ #define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12 GRGR.. BGBG.. */ #define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12 RGRG.. GBGB.. */ + + /* 12bit raw bayer simple packed, 6 bytes for every 4 pixels */ +#define V4L2_PIX_FMT_SBGGR12LP v4l2_fourcc('B', 'G', 'C', 'p') +#define V4L2_PIX_FMT_SGBRG12LP v4l2_fourcc('G', 'B', 'C', 'p') +#define V4L2_PIX_FMT_SGRBG12LP v4l2_fourcc('G', 'R', 'C', 'p') +#define V4L2_PIX_FMT_SRGGB12LP v4l2_fourcc('R', 'G', 'C', 'p') + /* 12bit raw bayer packed, 6 bytes for every 4 pixels */ #define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C') #define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')