From patchwork Fri Dec 24 08:42:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 12698967 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5621C433F5 for ; Fri, 24 Dec 2021 08:43:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352096AbhLXInd (ORCPT ); Fri, 24 Dec 2021 03:43:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352091AbhLXInb (ORCPT ); Fri, 24 Dec 2021 03:43:31 -0500 Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70CEEC061757 for ; Fri, 24 Dec 2021 00:43:31 -0800 (PST) Received: by mail-pj1-x102a.google.com with SMTP id iy13so7145650pjb.5 for ; Fri, 24 Dec 2021 00:43:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=h+Fh/qAuMn5CdjDLnYjyrqGITfKBSqt/cZsobAY6JEc=; b=CA6zjrhwXkkgRb/m1JYwPl/QSP10VHx89RbzeBKbGYf92y4v78Co10GSZ2WJWclqOX UUhBgFdbdJslb2b0q9ca4mimZLvlgTWBgnvkLiUJD8VFG7cecMWukGKCW8j+TwwpUb3E S8OpRmnQAdBzzqcdIzmawhHe0Eg6v1C94dG68= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=h+Fh/qAuMn5CdjDLnYjyrqGITfKBSqt/cZsobAY6JEc=; b=AMkTlhU2hx3ycxqlhhLB3BiTf5IY999ZgruQbzIJiV9xGPLMtZVI5Pu8a3e3VSeF93 ZdxhPvLE+Agvqt27s7oHAdrFSBQcXBEXWfa1MKw0Jxx/W4Dg6QM89abYAPhjp6sEM5M7 xyiN5UinyTZgPT6EBUQQ01szNY7hwDm2ERxj4zK75CCIlb/8E6ij2Hv3tTtJ3qnn1ASo VW0VVZW0Guik7p6uXO9L8sonnBBMzF2T/f83fE7x1p3fsunq132F+UaWALESX0wzDCUV SaaHxn7RMgHz5/gJ++G44F7IcKzIErss3jGc/JKkA7UD8IpZGGQVSObt6bge8wsxlCDa eKxQ== X-Gm-Message-State: AOAM531z6InrbxqDrXpRNXmcHgcpUuhuKhAuDEBn9w69jUez0Umz3T5l dM3wxNCS0AbXXb1+R1u4bZW1wQ== X-Google-Smtp-Source: ABdhPJy2kPiDpVLrzhjIwpHjW68Llg7zXf8Fj6vB99LCVDNqz4QNyABP30EHnthg9er6mH8NjVRd6Q== X-Received: by 2002:a17:902:7785:b0:149:5945:40ac with SMTP id o5-20020a170902778500b00149594540acmr3576627pll.35.1640335411024; Fri, 24 Dec 2021 00:43:31 -0800 (PST) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:fd40:cbd0:c42a:3c26]) by smtp.gmail.com with ESMTPSA id p13sm436369pgl.23.2021.12.24.00.43.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Dec 2021 00:43:30 -0800 (PST) From: Chen-Yu Tsai To: Ezequiel Garcia , Philipp Zabel , Mauro Carvalho Chehab , Hans Verkuil , Greg Kroah-Hartman Cc: Tomasz Figa , Chen-Yu Tsai , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH RFT 6/7] media: hantro: Implement V4L2_CID_JPEG_ACTIVE_MARKER control Date: Fri, 24 Dec 2021 16:42:47 +0800 Message-Id: <20211224084248.3070568-7-wenst@chromium.org> X-Mailer: git-send-email 2.34.1.448.ga2b2bfdf31-goog In-Reply-To: <20211224084248.3070568-1-wenst@chromium.org> References: <20211224084248.3070568-1-wenst@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The Hantro JPEG encoder driver adds various segments to the JPEG header. While it would be quite complicated to make these segments selectable to userspace, given that the driver has to fill in various fields in these segments, and also take care of alignment, it would be nice if the driver could signal to userspace what segments are included. Implement the V4L2_CID_JPEG_ACTIVE_MARKER control, and make it always return the set of segments that the driver adds. Signed-off-by: Chen-Yu Tsai --- drivers/staging/media/hantro/hantro_drv.c | 31 +++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c index 6a51f39dde56..33232479dcb7 100644 --- a/drivers/staging/media/hantro/hantro_drv.c +++ b/drivers/staging/media/hantro/hantro_drv.c @@ -280,6 +280,26 @@ static int hantro_try_ctrl(struct v4l2_ctrl *ctrl) return 0; } +#define HANTRO_JPEG_ACTIVE_MARKERS (V4L2_JPEG_ACTIVE_MARKER_APP0 | \ + V4L2_JPEG_ACTIVE_MARKER_COM | \ + V4L2_JPEG_ACTIVE_MARKER_DQT | \ + V4L2_JPEG_ACTIVE_MARKER_DHT) + +static int hantro_jpeg_try_ctrl(struct v4l2_ctrl *ctrl) +{ + switch (ctrl->id) { + case V4L2_CID_JPEG_COMPRESSION_QUALITY: + break; + case V4L2_CID_JPEG_ACTIVE_MARKER: + ctrl->val = HANTRO_JPEG_ACTIVE_MARKERS; + break; + default: + return -EINVAL; + } + + return 0; +} + static int hantro_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) { struct hantro_ctx *ctx; @@ -293,6 +313,8 @@ static int hantro_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) case V4L2_CID_JPEG_COMPRESSION_QUALITY: ctx->jpeg_quality = ctrl->val; break; + case V4L2_CID_JPEG_ACTIVE_MARKER: + break; default: return -EINVAL; } @@ -325,6 +347,7 @@ static const struct v4l2_ctrl_ops hantro_ctrl_ops = { }; static const struct v4l2_ctrl_ops hantro_jpeg_ctrl_ops = { + .try_ctrl = hantro_jpeg_try_ctrl, .s_ctrl = hantro_jpeg_s_ctrl, }; @@ -343,6 +366,14 @@ static const struct hantro_ctrl controls[] = { .def = 50, .ops = &hantro_jpeg_ctrl_ops, }, + }, { + .codec = HANTRO_JPEG_ENCODER, + .cfg = { + .id = V4L2_CID_JPEG_ACTIVE_MARKER, + .max = HANTRO_JPEG_ACTIVE_MARKERS, + .def = HANTRO_JPEG_ACTIVE_MARKERS, + .ops = &hantro_jpeg_ctrl_ops, + }, }, { .codec = HANTRO_MPEG2_DECODER, .cfg = {