From patchwork Fri Nov 9 17:05:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kieran Bingham X-Patchwork-Id: 52872 X-Patchwork-Delegate: laurent.pinchart@ideasonboard.com Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gLAE3-0005lw-Tt; Fri, 09 Nov 2018 17:05:44 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728393AbeKJCrI (ORCPT + 1 other); Fri, 9 Nov 2018 21:47:08 -0500 Received: from perceval.ideasonboard.com ([213.167.242.64]:38886 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728198AbeKJCrH (ORCPT ); Fri, 9 Nov 2018 21:47:07 -0500 Received: from localhost.localdomain (cpc89242-aztw30-2-0-cust488.18-1.cable.virginm.net [86.31.129.233]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id F1933140B; Fri, 9 Nov 2018 18:05:37 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1541783138; bh=IYjyDV4bfc2/ePaXqQdMXoEV8pxXbFZxksoDoyxZbQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=rt3/OOJZzxXHuJbznROQeq/el7SUl4SsB9cc7KhbGFFOwOrH+CJ9yZ8T3byVViCjV RNTymsH33ycXV53sU5j3jksG0zDYbpus1qCc+NFHVkEBE64IEhCwoIoLkG9eC+fptp CZskZW+xmq1DtX1fbBMquW2zoOAi4iwYXJlBiwgA= From: Kieran Bingham To: Laurent Pinchart , linux-media@vger.kernel.org Cc: Guennadi Liakhovetski , Olivier BRAUN , Troy Kisky , Randy Dunlap , Philipp Zabel , Ezequiel Garcia , Kieran Bingham , Tomasz Figa , Keiichi Watanabe Subject: [PATCH v6 02/10] media: uvcvideo: Convert decode functions to use new context structure Date: Fri, 9 Nov 2018 17:05:25 +0000 Message-Id: <53121d06c06b2c2ef6947368cd5880215a8cfdc2.1541782862.git-series.kieran.bingham@ideasonboard.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The URB completion handlers currently reference the stream context. Now that each URB has its own context structure, convert the decode (and one encode) functions to utilise this context for URB management. Signed-off-by: Kieran Bingham Reviewed-by: Laurent Pinchart --- v2: - fix checkpatch warning (pre-existing in code) v3: (none) v4: - Rebase on top of linux-media/master (v4.16-rc4, metadata additions) drivers/media/usb/uvc/uvc_isight.c | 6 ++++-- drivers/media/usb/uvc/uvc_video.c | 26 ++++++++++++++++++-------- drivers/media/usb/uvc/uvcvideo.h | 8 +++++--- 3 files changed, 27 insertions(+), 13 deletions(-) diff --git a/drivers/media/usb/uvc/uvc_isight.c b/drivers/media/usb/uvc/uvc_isight.c index 81e6f2187bfb..39a4e4482b23 100644 --- a/drivers/media/usb/uvc/uvc_isight.c +++ b/drivers/media/usb/uvc/uvc_isight.c @@ -99,9 +99,11 @@ static int isight_decode(struct uvc_video_queue *queue, struct uvc_buffer *buf, return 0; } -void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream, - struct uvc_buffer *buf, struct uvc_buffer *meta_buf) +void uvc_video_decode_isight(struct uvc_urb *uvc_urb, struct uvc_buffer *buf, + struct uvc_buffer *meta_buf) { + struct urb *urb = uvc_urb->urb; + struct uvc_streaming *stream = uvc_urb->stream; int ret, i; for (i = 0; i < urb->number_of_packets; ++i) { diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index 113881bed2a4..6d4384695964 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -1291,9 +1291,11 @@ static void uvc_video_next_buffers(struct uvc_streaming *stream, *video_buf = uvc_queue_next_buffer(&stream->queue, *video_buf); } -static void uvc_video_decode_isoc(struct urb *urb, struct uvc_streaming *stream, +static void uvc_video_decode_isoc(struct uvc_urb *uvc_urb, struct uvc_buffer *buf, struct uvc_buffer *meta_buf) { + struct urb *urb = uvc_urb->urb; + struct uvc_streaming *stream = uvc_urb->stream; u8 *mem; int ret, i; @@ -1334,9 +1336,11 @@ static void uvc_video_decode_isoc(struct urb *urb, struct uvc_streaming *stream, } } -static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream, +static void uvc_video_decode_bulk(struct uvc_urb *uvc_urb, struct uvc_buffer *buf, struct uvc_buffer *meta_buf) { + struct urb *urb = uvc_urb->urb; + struct uvc_streaming *stream = uvc_urb->stream; u8 *mem; int len, ret; @@ -1402,9 +1406,12 @@ static void uvc_video_decode_bulk(struct urb *urb, struct uvc_streaming *stream, } } -static void uvc_video_encode_bulk(struct urb *urb, struct uvc_streaming *stream, +static void uvc_video_encode_bulk(struct uvc_urb *uvc_urb, struct uvc_buffer *buf, struct uvc_buffer *meta_buf) { + struct urb *urb = uvc_urb->urb; + struct uvc_streaming *stream = uvc_urb->stream; + u8 *mem = urb->transfer_buffer; int len = stream->urb_size, ret; @@ -1447,7 +1454,8 @@ static void uvc_video_encode_bulk(struct urb *urb, struct uvc_streaming *stream, static void uvc_video_complete(struct urb *urb) { - struct uvc_streaming *stream = urb->context; + struct uvc_urb *uvc_urb = urb->context; + struct uvc_streaming *stream = uvc_urb->stream; struct uvc_video_queue *queue = &stream->queue; struct uvc_video_queue *qmeta = &stream->meta.queue; struct vb2_queue *vb2_qmeta = stream->meta.vdev.queue; @@ -1490,7 +1498,7 @@ static void uvc_video_complete(struct urb *urb) spin_unlock_irqrestore(&qmeta->irqlock, flags); } - stream->decode(urb, stream, buf, buf_meta); + stream->decode(uvc_urb, buf, buf_meta); if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { uvc_printk(KERN_ERR, "Failed to resubmit video URB (%d).\n", @@ -1568,6 +1576,8 @@ static int uvc_alloc_urb_buffers(struct uvc_streaming *stream, uvc_free_urb_buffers(stream); break; } + + uvc_urb->stream = stream; } if (i == UVC_URBS) { @@ -1666,7 +1676,7 @@ static int uvc_init_video_isoc(struct uvc_streaming *stream, } urb->dev = stream->dev->udev; - urb->context = stream; + urb->context = uvc_urb; urb->pipe = usb_rcvisocpipe(stream->dev->udev, ep->desc.bEndpointAddress); #ifndef CONFIG_DMA_NONCOHERENT @@ -1733,8 +1743,8 @@ static int uvc_init_video_bulk(struct uvc_streaming *stream, return -ENOMEM; } - usb_fill_bulk_urb(urb, stream->dev->udev, pipe, uvc_urb->buffer, - size, uvc_video_complete, stream); + usb_fill_bulk_urb(urb, stream->dev->udev, pipe, uvc_urb->buffer, + size, uvc_video_complete, uvc_urb); #ifndef CONFIG_DMA_NONCOHERENT urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; urb->transfer_dma = uvc_urb->dma; diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 7233249b59f5..7c83185c5b87 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -494,11 +494,13 @@ struct uvc_stats_stream { * struct uvc_urb - URB context management structure * * @urb: the URB described by this context structure + * @stream: UVC streaming context * @buffer: memory storage for the URB * @dma: DMA coherent addressing for the urb_buffer */ struct uvc_urb { struct urb *urb; + struct uvc_streaming *stream; char *buffer; dma_addr_t dma; @@ -534,8 +536,8 @@ struct uvc_streaming { /* Buffers queue. */ unsigned int frozen : 1; struct uvc_video_queue queue; - void (*decode) (struct urb *urb, struct uvc_streaming *video, - struct uvc_buffer *buf, struct uvc_buffer *meta_buf); + void (*decode)(struct uvc_urb *uvc_urb, struct uvc_buffer *buf, + struct uvc_buffer *meta_buf); struct { struct video_device vdev; @@ -821,7 +823,7 @@ struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, u8 epaddr); /* Quirks support */ -void uvc_video_decode_isight(struct urb *urb, struct uvc_streaming *stream, +void uvc_video_decode_isight(struct uvc_urb *uvc_urb, struct uvc_buffer *buf, struct uvc_buffer *meta_buf);