From patchwork Tue Jun 18 16:45:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Zabel X-Patchwork-Id: 11002269 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 778721398 for ; Tue, 18 Jun 2019 16:46:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 67CF12003F for ; Tue, 18 Jun 2019 16:46:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5BE522870D; Tue, 18 Jun 2019 16:46:07 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham 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 F25D92003F for ; Tue, 18 Jun 2019 16:46:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730085AbfFRQqD (ORCPT ); Tue, 18 Jun 2019 12:46:03 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:42943 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729455AbfFRQpp (ORCPT ); Tue, 18 Jun 2019 12:45:45 -0400 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28] helo=dude02.pengutronix.de.) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1hdHEt-0003WX-BD; Tue, 18 Jun 2019 18:45:43 +0200 From: Philipp Zabel To: linux-media@vger.kernel.org Cc: Mauro Carvalho Chehab , Hans Verkuil , kernel@pengutronix.de Subject: [PATCH 01/28] media: coda: implement CMD_START to restart decoding Date: Tue, 18 Jun 2019 18:45:08 +0200 Message-Id: <20190618164535.20162-2-p.zabel@pengutronix.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190618164535.20162-1-p.zabel@pengutronix.de> References: <20190618164535.20162-1-p.zabel@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org 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 From: Michael Tretter The CMD_START shall be used to start the processing after a drain that was initiated with CMD_STOP. Up until now, a drain on coda could only be finished with a STREAMOFF-STREAMON, which resulted in a reset of the device. Signed-off-by: Michael Tretter Signed-off-by: Philipp Zabel --- drivers/media/platform/coda/coda-common.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index 751b0be1c2ea..a5e0d5c1528e 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -1059,16 +1059,29 @@ static int coda_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *dc) { struct coda_ctx *ctx = fh_to_ctx(fh); + struct vb2_queue *dst_vq; int ret; ret = coda_try_decoder_cmd(file, fh, dc); if (ret < 0) return ret; - /* Set the stream-end flag on this context */ - coda_bit_stream_end_flag(ctx); - ctx->hold = false; - v4l2_m2m_try_schedule(ctx->fh.m2m_ctx); + switch (dc->cmd) { + case V4L2_DEC_CMD_START: + dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, + V4L2_BUF_TYPE_VIDEO_CAPTURE); + vb2_clear_last_buffer_dequeued(dst_vq); + ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG; + break; + case V4L2_DEC_CMD_STOP: + /* Set the stream-end flag on this context */ + coda_bit_stream_end_flag(ctx); + ctx->hold = false; + v4l2_m2m_try_schedule(ctx->fh.m2m_ctx); + break; + default: + return -EINVAL; + } return 0; }