From patchwork Thu Oct 13 12:12:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Milen Mitkov \(Consultant\)" X-Patchwork-Id: 615285 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 9592CC433FE for ; Thu, 13 Oct 2022 12:13:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229526AbiJMMNg (ORCPT ); Thu, 13 Oct 2022 08:13:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229619AbiJMMNd (ORCPT ); Thu, 13 Oct 2022 08:13:33 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AEA45F984F; Thu, 13 Oct 2022 05:13:29 -0700 (PDT) Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 29DAqBHv018874; Thu, 13 Oct 2022 12:13:13 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=O2FD9SxfziZxYwt8cQYyEvA+DTm7msjI+rzV8VfVAPo=; b=QEtu23EVdLbgFZiybDbLSgGQJfgAonHY2WC3uxhCVx1C4WbFiQgakJa2LLWRWzLH1PF6 gMU4+neN1fzscqFqemujVa6iStxkFVYInvlZFeN8cYk+7GQZ9u23Wbntox6NQ/GT+Zd+ aEU/2YL/Mh8WOLPgQD9pVt0cfgJTDMK9IUbql9H0Ub3Ho6Fb/9b2/yfblUkp3NWPI6Sg GSHBMeL8a8KDoxf6rlb1/ssrIQrw49zaZWOVH6Reegp0gKxaz9hx+0jmrU4KOR4y4JeV qseWM4XNs/3iR4ONDvTtEIhm4XMAVxOvffBlYhKwZxe9wmeeT3EU0Ll0jX7SOiO0TK4/ Zg== Received: from nasanppmta01.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3k5x7g3kxm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 13 Oct 2022 12:13:13 +0000 Received: from nasanex01a.na.qualcomm.com (corens_vlan604_snip.qualcomm.com [10.53.140.1]) by NASANPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 29DCDCsR010271 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 13 Oct 2022 12:13:12 GMT Received: from mmitkov.eu.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.29; Thu, 13 Oct 2022 05:13:09 -0700 From: To: , , , , , CC: , , , , , , , , Milen Mitkov Subject: [PATCH v4 0/4] media: camss: sm8250: Virtual channels support for SM8250 Date: Thu, 13 Oct 2022 15:12:51 +0300 Message-ID: <20221013121255.1977-1-quic_mmitkov@quicinc.com> X-Mailer: git-send-email 2.37.3.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: C7sjUqWHhKG6Q8SARmBHtYw-ohD2c8c4 X-Proofpoint-ORIG-GUID: C7sjUqWHhKG6Q8SARmBHtYw-ohD2c8c4 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-10-13_08,2022-10-13_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 mlxscore=0 clxscore=1011 mlxlogscore=999 impostorscore=0 malwarescore=0 bulkscore=0 spamscore=0 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210130072 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Milen Mitkov For v4: - fixes the warning reported by the kernel test robot - tiny code change to enable the vc functionality with the partially-applied multistream patches on linux-next (tested on tag:next-20221010) For v3: - setting the sink pad format on the CSID entity will now propagate the format to the source pads to keep the subdev in a valid internal state. - code syntax improvements For v2: - code syntax improvements - The info print for the enabled VCs was demoted to a dbg print. Can be enabled with dynamic debug, e.g.: echo "file drivers/media/platform/qcom/camss/* +p" > /sys/kernel/debug/dynamic_debug/control NOTE: These changes depend on the multistream series, that as of yet is still not merged upstream. However, part of the multistream patches are merged in linux-next (tested on tag:next-20221010), including the patch that introduces the video_device_pipeline_alloc_start() functionality. This allows applying and using this series on linux-next without applying the complete multistream set. The CSID hardware on SM8250 can demux the input data stream into maximum of 4 multiple streams depending on virtual channel (vc) or data type (dt) configuration. Situations in which demuxing is useful: - HDR sensors that produce a 2-frame HDR output, e.g. a light and a dark frame (the setup we used for testing, with the imx412 sensor), or a 3-frame HDR output - light, medium-lit, dark frame. - sensors with additional metadata that is streamed over a different virtual channel/datatype. - sensors that produce frames with multiple resolutions in the same pixel data stream With these changes, the CSID entity has, as it did previously, a single sink port (0), and always exposes 4 source ports (1, 2,3, 4). The virtual channel configuration is determined by which of the source ports are linked to an output VFE line. For example, the link below will configure the CSID driver to enable vc 0 and vc 1: media-ctl -l '"msm_csid0":1->"msm_vfe0_rdi0":0[1]' media-ctl -l '"msm_csid0":2->"msm_vfe0_rdi1":0[1]' which will be demuxed and propagated into /dev/video0 and /dev/video1 respectively. With this, the userspace can use any normal V4L2 client app to start/stop/queue/dequeue from these video nodes. Tested with the yavta app. The format of each RDI channel of the used VFE(s) (msm_vfe0_rdi0, msm_vfe0_rdi1,...) must also be configured explicitly. Note that in order to keep a valid internal subdevice state, setting the sink pad format of the CSID subdevice will propagate this format to the source pads. However, since the CSID hardware can demux the input stream into several streams each of which can be a different format, in that case each source pad's format must be set individually, e.g.: media-ctl -V '"msm_csid0":1[fmt:SRGGB10/3840x2160]' media-ctl -V '"msm_csid0":2[fmt:SRGGB10/960x540]' Milen Mitkov (4): media: camss: sm8250: Virtual channels for CSID media: camss: vfe: Reserve VFE lines on stream start and link to CSID media: camss: vfe-480: Multiple outputs support for SM8250 media: camss: sm8250: Pipeline starting and stopping for multiple virtual channels .../platform/qcom/camss/camss-csid-gen2.c | 54 ++++++++++------ .../media/platform/qcom/camss/camss-csid.c | 44 +++++++++---- .../media/platform/qcom/camss/camss-csid.h | 11 +++- .../media/platform/qcom/camss/camss-vfe-480.c | 61 ++++++++++++------- drivers/media/platform/qcom/camss/camss-vfe.c | 7 +++ .../media/platform/qcom/camss/camss-video.c | 21 ++++++- drivers/media/platform/qcom/camss/camss.c | 2 +- 7 files changed, 140 insertions(+), 60 deletions(-) Tested-by: Bryan O'Donoghue Acked-by: Robert Foss