From patchwork Tue Aug 22 23:26:38 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 9916345 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7F6C7603FF for ; Tue, 22 Aug 2017 23:29:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72D7027CF9 for ; Tue, 22 Aug 2017 23:29:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 67DD726E78; Tue, 22 Aug 2017 23:29:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EF70027853 for ; Tue, 22 Aug 2017 23:29:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752955AbdHVX3I (ORCPT ); Tue, 22 Aug 2017 19:29:08 -0400 Received: from smtp-3.sys.kth.se ([130.237.48.192]:56142 "EHLO smtp-3.sys.kth.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752814AbdHVX2t (ORCPT ); Tue, 22 Aug 2017 19:28:49 -0400 Received: from smtp-3.sys.kth.se (localhost.localdomain [127.0.0.1]) by smtp-3.sys.kth.se (Postfix) with ESMTP id 4A2A93683; Wed, 23 Aug 2017 01:28:48 +0200 (CEST) X-Virus-Scanned: by amavisd-new at kth.se Received: from smtp-3.sys.kth.se ([127.0.0.1]) by smtp-3.sys.kth.se (smtp-3.sys.kth.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP id qBdhmjNNTH2D; Wed, 23 Aug 2017 01:28:47 +0200 (CEST) X-KTH-Auth: niso [89.233.230.99] X-KTH-mail-from: niklas.soderlund+renesas@ragnatech.se Received: from bismarck.berto.se (unknown [89.233.230.99]) by smtp-3.sys.kth.se (Postfix) with ESMTPSA id 6275A369E; Wed, 23 Aug 2017 01:28:47 +0200 (CEST) From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= To: Laurent Pinchart , Hans Verkuil Cc: Kieran Bingham , Sakari Ailus , tomoharu.fukawa.eb@renesas.com, linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCH v6 23/25] rcar-vin: extend {start, stop}_streaming to work with media controller Date: Wed, 23 Aug 2017 01:26:38 +0200 Message-Id: <20170822232640.26147-24-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.14.0 In-Reply-To: <20170822232640.26147-1-niklas.soderlund+renesas@ragnatech.se> References: <20170822232640.26147-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The procedure to start or stop streaming using the none MC single subdevice and the MC graph and multiple subdevices are quiet different. Create a new function to abstract which method is used based on which mode the driver is running in and add logic to start the MC graph. Signed-off-by: Niklas Söderlund --- drivers/media/platform/rcar-vin/rcar-dma.c | 112 +++++++++++++++++++++++++++-- 1 file changed, 105 insertions(+), 7 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index de1486ee2786b499..499253f94390f43e 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -1087,15 +1087,115 @@ static void rvin_buffer_queue(struct vb2_buffer *vb) spin_unlock_irqrestore(&vin->qlock, flags); } +static int rvin_set_stream(struct rvin_dev *vin, int on) +{ + struct v4l2_subdev_format fmt = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + }; + struct media_pipeline *pipe; + struct v4l2_subdev *sd; + struct media_pad *pad; + int ret; + + /* Not media controller used, simply pass operation to subdevice */ + if (!vin->info->use_mc) { + ret = v4l2_subdev_call(vin->digital.subdev, video, s_stream, + on); + + return ret == -ENOIOCTLCMD ? 0 : ret; + } + + pad = media_entity_remote_pad(&vin->pad); + if (!pad) + return -EPIPE; + + sd = media_entity_to_v4l2_subdev(pad->entity); + if (!sd) + return -EPIPE; + + if (on) { + fmt.pad = pad->index; + if (v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt)) + return -EPIPE; + + switch (fmt.format.code) { + case MEDIA_BUS_FMT_YUYV8_1X16: + case MEDIA_BUS_FMT_UYVY8_2X8: + case MEDIA_BUS_FMT_UYVY10_2X10: + case MEDIA_BUS_FMT_RGB888_1X24: + vin->code = fmt.format.code; + break; + default: + return -EPIPE; + } + + switch (fmt.format.field) { + case V4L2_FIELD_TOP: + case V4L2_FIELD_BOTTOM: + case V4L2_FIELD_NONE: + case V4L2_FIELD_INTERLACED_TB: + case V4L2_FIELD_INTERLACED_BT: + case V4L2_FIELD_INTERLACED: + case V4L2_FIELD_SEQ_TB: + case V4L2_FIELD_SEQ_BT: + /* Supported nativly */ + break; + case V4L2_FIELD_ALTERNATE: + switch (vin->format.field) { + case V4L2_FIELD_TOP: + case V4L2_FIELD_BOTTOM: + case V4L2_FIELD_NONE: + break; + case V4L2_FIELD_INTERLACED_TB: + case V4L2_FIELD_INTERLACED_BT: + case V4L2_FIELD_INTERLACED: + case V4L2_FIELD_SEQ_TB: + case V4L2_FIELD_SEQ_BT: + /* Use VIN hardware to combine the two fields */ + fmt.format.height *= 2; + break; + default: + return -EPIPE; + } + break; + default: + return -EPIPE; + } + + if (fmt.format.width != vin->format.width || + fmt.format.height != vin->format.height) + return -EPIPE; + + pipe = sd->entity.pipe ? sd->entity.pipe : &vin->vdev.pipe; + if (media_pipeline_start(&vin->vdev.entity, pipe)) + return -EPIPE; + + ret = v4l2_subdev_call(sd, video, s_stream, 1); + if (ret == -ENOIOCTLCMD) + ret = 0; + if (ret) + media_pipeline_stop(&vin->vdev.entity); + } else { + media_pipeline_stop(&vin->vdev.entity); + ret = v4l2_subdev_call(sd, video, s_stream, 0); + } + + return ret; +} + static int rvin_start_streaming(struct vb2_queue *vq, unsigned int count) { struct rvin_dev *vin = vb2_get_drv_priv(vq); - struct v4l2_subdev *sd; unsigned long flags; int ret; - sd = vin_to_source(vin); - v4l2_subdev_call(sd, video, s_stream, 1); + ret = rvin_set_stream(vin, 1); + if (ret) { + spin_lock_irqsave(&vin->qlock, flags); + return_all_buffers(vin, VB2_BUF_STATE_QUEUED); + spin_unlock_irqrestore(&vin->qlock, flags); + return ret; + } spin_lock_irqsave(&vin->qlock, flags); @@ -1104,7 +1204,7 @@ static int rvin_start_streaming(struct vb2_queue *vq, unsigned int count) ret = rvin_capture_start(vin); if (ret) { return_all_buffers(vin, VB2_BUF_STATE_QUEUED); - v4l2_subdev_call(sd, video, s_stream, 0); + rvin_set_stream(vin, 0); } spin_unlock_irqrestore(&vin->qlock, flags); @@ -1115,7 +1215,6 @@ static int rvin_start_streaming(struct vb2_queue *vq, unsigned int count) static void rvin_stop_streaming(struct vb2_queue *vq) { struct rvin_dev *vin = vb2_get_drv_priv(vq); - struct v4l2_subdev *sd; unsigned long flags; int retries = 0; @@ -1154,8 +1253,7 @@ static void rvin_stop_streaming(struct vb2_queue *vq) spin_unlock_irqrestore(&vin->qlock, flags); - sd = vin_to_source(vin); - v4l2_subdev_call(sd, video, s_stream, 0); + rvin_set_stream(vin, 0); /* disable interrupts */ rvin_disable_interrupts(vin);