From patchwork Mon Mar 29 06:57:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 12170713 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=-15.4 required=3.0 tests=BAYES_00,DATE_IN_PAST_03_06, DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable 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 541A6C433E5 for ; Mon, 29 Mar 2021 18:24:23 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 99D456192F for ; Mon, 29 Mar 2021 18:24:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 99D456192F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=gRhtwqvsEIcS3JBkXRrrxkbJ8RTdfe2QwfW0oXej6dc=; b=cWQ8MOjixGxE/6QJLM7NQ9BQ3 6gdmk5K0dQAzgY75R2PUvizIB6YCioph71BY13Mem2tVN1owBQVkI1wQjleM71ft1zIdJR1Xw6F/y O8ykvFxaMtn9eKNOhk2WPErGt6qD61wwQ6uqX+KwHC8EgxHPV/f94HOdknNtMNza8I59WBseJEb0S mxzat+kmfTs2s7XQ0GNS25fYH8EPU5AjsaUzmoy10KDNhqBur7aKXV0M5R3ZuLpi8iKzxwkRKfZqK Cl6bSpkdvePTlmOFrCg0bccu/QBsOzAUgb6bX7Y23k8R78hy9M/Cte3O+Ugjps8Tc/7RkqiJ30Gpl fBAQDt/Jg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lQwYh-0012Xq-Hz; Mon, 29 Mar 2021 18:24:16 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lQpDR-000aRo-Td; Mon, 29 Mar 2021 10:33:52 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: benjamin.gaignard) with ESMTPSA id E371A1F45B96 From: Benjamin Gaignard To: ezequiel@collabora.com, p.zabel@pengutronix.de, mchehab@kernel.org, robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, lee.jones@linaro.org, gregkh@linuxfoundation.org, mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org, jernej.skrabec@siol.net, hverkuil-cisco@xs4all.nl, emil.l.velikov@gmail.com Cc: kernel@pengutronix.de, linux-imx@nxp.com, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v7 09/13] media: uapi: Add a control for HANTRO driver Date: Mon, 29 Mar 2021 08:57:39 +0200 Message-Id: <20210329065743.11961-10-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210329065743.11961-1-benjamin.gaignard@collabora.com> References: <20210329065743.11961-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210329_113350_016885_A055C3AC X-CRM114-Status: GOOD ( 18.68 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org The HEVC HANTRO driver needs to know the number of bits to skip at the beginning of the slice header. That is a hardware specific requirement so create a dedicated control that this purpose. Signed-off-by: Benjamin Gaignard --- version 5: - Be even more verbose in control documentation. - Do not create class for the control. version 4: - The control is now an integer which is enough to provide the numbers of bits to skip. version 3: - Fix typo in field name .../userspace-api/media/drivers/hantro.rst | 14 ++++++++++++++ .../userspace-api/media/drivers/index.rst | 1 + include/uapi/linux/v4l2-controls.h | 13 +++++++++++++ 3 files changed, 28 insertions(+) create mode 100644 Documentation/userspace-api/media/drivers/hantro.rst diff --git a/Documentation/userspace-api/media/drivers/hantro.rst b/Documentation/userspace-api/media/drivers/hantro.rst new file mode 100644 index 000000000000..78dcd2a44a03 --- /dev/null +++ b/Documentation/userspace-api/media/drivers/hantro.rst @@ -0,0 +1,14 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Hantro video decoder driver +=========================== + +The Hantro video decoder driver implements the following driver-specific controls: + +``V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP (integer)`` + Specifies to Hantro HEVC video decoder driver the number of data (in bits) to + skip in the slice segment header. + If non-IDR, the bits to be skipped go from syntax element "pic_output_flag" + to before syntax element "slice_temporal_mvp_enabled_flag". + If IDR, the skipped bits are just "pic_output_flag" + (separate_colour_plane_flag is not supported). diff --git a/Documentation/userspace-api/media/drivers/index.rst b/Documentation/userspace-api/media/drivers/index.rst index 1a9038f5f9fa..12e3c512d718 100644 --- a/Documentation/userspace-api/media/drivers/index.rst +++ b/Documentation/userspace-api/media/drivers/index.rst @@ -33,6 +33,7 @@ For more details see the file COPYING in the source distribution of Linux. ccs cx2341x-uapi + hantro imx-uapi max2175 meye-uapi diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index f3376aafea65..1dfb874b6272 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -869,6 +869,19 @@ enum v4l2_mpeg_mfc51_video_force_frame_type { #define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_STATIC (V4L2_CID_CODEC_MFC51_BASE+53) #define V4L2_CID_MPEG_MFC51_VIDEO_H264_NUM_REF_PIC_FOR_P (V4L2_CID_CODEC_MFC51_BASE+54) +/* MPEG-class control IDs specific to the Hantro driver as defined by V4L2 */ +#define V4L2_CID_CODEC_HANTRO_BASE (V4L2_CTRL_CLASS_CODEC | 0x1200) +/* + * V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP - + * the number of data (in bits) to skip in the + * slice segment header. + * If non-IDR, the bits to be skipped go from syntax element "pic_output_flag" + * to before syntax element "slice_temporal_mvp_enabled_flag". + * If IDR, the skipped bits are just "pic_output_flag" + * (separate_colour_plane_flag is not supported). + */ +#define V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP (V4L2_CID_CODEC_HANTRO_BASE + 0) + /* Camera class control IDs */ #define V4L2_CID_CAMERA_CLASS_BASE (V4L2_CTRL_CLASS_CAMERA | 0x900)