From patchwork Tue Oct 27 03:19:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sowjanya Komatineni X-Patchwork-Id: 286071 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=-12.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 38B00C55178 for ; Tue, 27 Oct 2020 03:20:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E49892151B for ; Tue, 27 Oct 2020 03:20:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="cFHiyNEe" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2504847AbgJ0DUq (ORCPT ); Mon, 26 Oct 2020 23:20:46 -0400 Received: from hqnvemgate25.nvidia.com ([216.228.121.64]:15480 "EHLO hqnvemgate25.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2504564AbgJ0DTa (ORCPT ); Mon, 26 Oct 2020 23:19:30 -0400 Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate25.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Mon, 26 Oct 2020 20:19:33 -0700 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 27 Oct 2020 03:19:28 +0000 Received: from skomatineni-linux.nvidia.com (172.20.13.39) by mail.nvidia.com (172.20.187.15) with Microsoft SMTP Server id 15.0.1473.3 via Frontend Transport; Tue, 27 Oct 2020 03:19:28 +0000 From: Sowjanya Komatineni To: , , , CC: , , , Subject: [PATCH v2 05/10] media: tegra-video: Add DV timing support Date: Mon, 26 Oct 2020 20:19:18 -0700 Message-ID: <1603768763-25590-6-git-send-email-skomatineni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1603768763-25590-1-git-send-email-skomatineni@nvidia.com> References: <1603768763-25590-1-git-send-email-skomatineni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1603768773; bh=LiaXgDHJz9gTg1dN9RrtBEXYHCuprW00WoLXWidqB+4=; h=From:To:CC:Subject:Date:Message-ID:X-Mailer:In-Reply-To: References:X-NVConfidentiality:MIME-Version:Content-Type; b=cFHiyNEenggApaLAFglCG++JtPQ2HXe9BflQTUEUwj8PQEloCYW1Qk3wC4GI50aTT VNSbAbUSGv4r9iX/dauXPlQ/dow9XqrhicxOWOUVaUIbUvtDTIF+hOwLcddQhXGUG4 QnkAp5yp7epGiv7VTBnih1D97laS5tERbSJRuagxWB7mqtFCF/DFzwpYvxhTcWb1Hq J5FtoXibtXUtQVrnih6DEZXjAh6rYX1bviwH8P4ZxN59kn6rbYu4+e/nvppHXXrUTw sA1iNfIoqn8CcOkm7b4ulEq8Mhr/rR0sJBjZSDwOE6na9XP8h7E9kY16hUgj9Tss0B TYMnC3iJ9thNg== Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This patch adds below v4l2 DV timing ioctls to support HDMI-to-CSI bridges. Signed-off-by: Sowjanya Komatineni --- drivers/staging/media/tegra-video/vi.c | 97 ++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index 525c087..d0d84da 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -18,6 +18,7 @@ #include #include +#include #include #include #include @@ -720,6 +721,97 @@ static int tegra_channel_s_selection(struct file *file, void *fh, return ret; } +static int tegra_channel_g_dv_timings(struct file *file, void *fh, + struct v4l2_dv_timings *timings) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, video, g_dv_timings)) + return -ENOTTY; + + return v4l2_device_call_until_err(chan->video.v4l2_dev, 0, + video, g_dv_timings, timings); +} + +static int tegra_channel_s_dv_timings(struct file *file, void *fh, + struct v4l2_dv_timings *timings) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + struct v4l2_bt_timings *bt = &timings->bt; + struct v4l2_dv_timings curr_timings; + int ret; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, video, s_dv_timings)) + return -ENOTTY; + + ret = tegra_channel_g_dv_timings(file, fh, &curr_timings); + if (ret) + return ret; + + if (v4l2_match_dv_timings(timings, &curr_timings, 0, false)) + return 0; + + if (vb2_is_busy(&chan->queue)) + return -EBUSY; + + ret = v4l2_device_call_until_err(chan->video.v4l2_dev, 0, + video, s_dv_timings, timings); + if (ret) + return ret; + + chan->format.width = bt->width; + chan->format.height = bt->height; + chan->format.bytesperline = bt->width * chan->fmtinfo->bpp; + chan->format.sizeimage = chan->format.bytesperline * bt->height; + tegra_channel_fmt_align(chan, &chan->format, chan->fmtinfo->bpp); + + return 0; +} + +static int tegra_channel_query_dv_timings(struct file *file, void *fh, + struct v4l2_dv_timings *timings) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, video, query_dv_timings)) + return -ENOTTY; + + return v4l2_device_call_until_err(chan->video.v4l2_dev, 0, + video, query_dv_timings, timings); +} + +static int tegra_channel_enum_dv_timings(struct file *file, void *fh, + struct v4l2_enum_dv_timings *timings) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, pad, enum_dv_timings)) + return -ENOTTY; + + return v4l2_subdev_call(subdev, pad, enum_dv_timings, timings); +} + +static int tegra_channel_dv_timings_cap(struct file *file, void *fh, + struct v4l2_dv_timings_cap *cap) +{ + struct tegra_vi_channel *chan = video_drvdata(file); + struct v4l2_subdev *subdev; + + subdev = tegra_channel_get_remote_source_subdev(chan); + if (!v4l2_subdev_has_op(subdev, pad, dv_timings_cap)) + return -ENOTTY; + + return v4l2_subdev_call(subdev, pad, dv_timings_cap, cap); +} + static int tegra_channel_enum_input(struct file *file, void *fh, struct v4l2_input *inp) { @@ -779,6 +871,11 @@ static const struct v4l2_ioctl_ops tegra_channel_ioctl_ops = { .vidioc_unsubscribe_event = v4l2_event_unsubscribe, .vidioc_g_selection = tegra_channel_g_selection, .vidioc_s_selection = tegra_channel_s_selection, + .vidioc_g_dv_timings = tegra_channel_g_dv_timings, + .vidioc_s_dv_timings = tegra_channel_s_dv_timings, + .vidioc_query_dv_timings = tegra_channel_query_dv_timings, + .vidioc_enum_dv_timings = tegra_channel_enum_dv_timings, + .vidioc_dv_timings_cap = tegra_channel_dv_timings_cap, }; /*