From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A62FAC433E0 for ; Thu, 4 Jun 2020 13:53:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 827B220823 for ; Thu, 4 Jun 2020 13:53:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="bTpVL1yf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728896AbgFDNxd (ORCPT ); Thu, 4 Jun 2020 09:53:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728740AbgFDNxb (ORCPT ); Thu, 4 Jun 2020 09:53:31 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CCB22C08C5C0 for ; Thu, 4 Jun 2020 06:53:30 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id e1so6221135wrt.5 for ; Thu, 04 Jun 2020 06:53:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Fs26md6QbBGAquJwpk095GGSGBX/m/yeaPP+lwPf4x8=; b=bTpVL1yfwhHL564oV9oXTuVi5bwYohXzTpcKvqoytnCDbbMUIAeZsrdq92E0qwRRSg UfSDj3lzKt+diIWgtJqYc2UKsOBY/ArWO+KMdr64+3lR8Puu98hTn/h1lbs8pZD3z0a5 6ShQ9QS2p4Zr3km9dLUyszhnICzksvQjbCrHKAfOpH8DBiP7RsMzrXzBw1bJT3KiwTm3 9xZUp0uS871oMpIXbSrQ/0KnqXJ/ZEg8yRFTESmOv1jd2O4crFzKduVGLDXRc8vcZgCD uUtou4MeMzMCIRxtSYLva3dOgaRLMh0YBcvkdPYbchEEWfISZiUqH0diRmCqtZ42LoKm G+jA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Fs26md6QbBGAquJwpk095GGSGBX/m/yeaPP+lwPf4x8=; b=VHDsCFM3LhGGpfQ7mFAkn5Rrdu9pFOYHjnkCaNk+81xd52mGObU1aHanpOAVHSvE7L 6UlVOMXRcks/6SHVOwZ1emfn5EqgGbap9dp6TUfIqgB98tFf/DbK0HmIz2fJhhYjbV9L P4WbqyCyH2Fnp3Akpj5ks9vrV3f3LCiHTd7DgkgWv2kKGOSKcX2AHtLEc2ZZOKKSQQxT ztxk4ISqLSWUbCUTBabx21PG3nNq5mKco/MT6jUAt32DN780JQZudk7sHeDnNqiw6QgW F3BGU8We3Po6V/j06vIJpDMGg4L5kdL1Y/VSaVVE0OpGMbEQErW1Q0mr8WWkkZHXqfD/ MXwQ== X-Gm-Message-State: AOAM530jOPKfoUYI8nVmSHnH8ql8LvWqvKyi3RQTQKJnLj3S/lfu6mJ1 2ACryeaLrVwfVkmK1tgGXDOe2Q== X-Google-Smtp-Source: ABdhPJwqpOH22rRrTWj54Pu3JjP2wensOE1kRwQ6BI5hptsY6t27TXlnHJBKfdM8GJs/L3uqecz/Pw== X-Received: by 2002:a5d:4dc9:: with SMTP id f9mr4441675wru.407.1591278809353; Thu, 04 Jun 2020 06:53:29 -0700 (PDT) Received: from bender.baylibre.local ([2a01:e35:2ec0:82b0:22:5867:d2c6:75f4]) by smtp.gmail.com with ESMTPSA id i74sm8185599wri.49.2020.06.04.06.53.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jun 2020 06:53:28 -0700 (PDT) From: Neil Armstrong To: hverkuil-cisco@xs4all.nl Cc: linux-media@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Maxime Jourdan , Neil Armstrong Subject: [PATCH 1/5] media: videodev2: add Compressed Framebuffer pixel formats Date: Thu, 4 Jun 2020 15:53:13 +0200 Message-Id: <20200604135317.9235-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20200604135317.9235-1-narmstrong@baylibre.com> References: <20200604135317.9235-1-narmstrong@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Maxime Jourdan Add two generic Compressed Framebuffer pixel formats to be used with a modifier when imported back in another subsystem like DRM/KMS. These pixel formats represents generic 8bits and 10bits compressed buffers with a vendor specific layout. These are aligned with the DRM_FORMAT_YUV420_8BIT and DRM_FORMAT_YUV420_10BIT used to describe the underlying compressed buffers used for ARM Framebuffer Compression. In the Amlogic case, the compression is different but the underlying buffer components is the same. Signed-off-by: Maxime Jourdan Signed-off-by: Neil Armstrong --- drivers/media/v4l2-core/v4l2-ioctl.c | 2 ++ include/uapi/linux/videodev2.h | 9 +++++++++ 2 files changed, 11 insertions(+) diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 2322f08a98be..8f14adfd5bc5 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1447,6 +1447,8 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break; case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break; case V4L2_PIX_FMT_SUNXI_TILED_NV12: descr = "Sunxi Tiled NV12 Format"; break; + case V4L2_PIX_FMT_YUV420_8BIT: descr = "Compressed YUV 4:2:0 8-bit Format"; break; + case V4L2_PIX_FMT_YUV420_10BIT: descr = "Compressed YUV 4:2:0 10-bit Format"; break; default: if (fmt->description[0]) return; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index c3a1cf1c507f..90b9949acb8a 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -705,6 +705,15 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_FWHT v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */ #define V4L2_PIX_FMT_FWHT_STATELESS v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */ +/* + * Compressed Luminance+Chrominance meta-formats + * In these formats, the component ordering is specified (Y, followed by U + * then V), but the exact Linear layout is undefined. + * These formats can only be used with a non-Linear modifier. + */ +#define V4L2_PIX_FMT_YUV420_8BIT v4l2_fourcc('Y', 'U', '0', '8') /* 1-plane YUV 4:2:0 8-bit */ +#define V4L2_PIX_FMT_YUV420_10BIT v4l2_fourcc('Y', 'U', '1', '0') /* 1-plane YUV 4:2:0 10-bit */ + /* Vendor-specific formats */ #define V4L2_PIX_FMT_CPIA1 v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */ #define V4L2_PIX_FMT_WNVA v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */ -- 2.22.0