From patchwork Mon Jul 7 16:32:08 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacek Anaszewski X-Patchwork-Id: 4496361 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 026EC9F390 for ; Mon, 7 Jul 2014 16:33:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 225C1202F0 for ; Mon, 7 Jul 2014 16:33:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 363E2202EC for ; Mon, 7 Jul 2014 16:33:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752002AbaGGQdh (ORCPT ); Mon, 7 Jul 2014 12:33:37 -0400 Received: from mailout3.samsung.com ([203.254.224.33]:57825 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751883AbaGGQdg (ORCPT ); Mon, 7 Jul 2014 12:33:36 -0400 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N8C00D1JONZZK90@mailout3.samsung.com>; Tue, 08 Jul 2014 01:33:35 +0900 (KST) X-AuditID: cbfee61a-f79e46d00000134f-ea-53bacbdf22fc Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 21.24.04943.FDBCAB35; Tue, 08 Jul 2014 01:33:35 +0900 (KST) Received: from AMDC2362.DIGITAL.local ([106.120.53.23]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N8C00GK8OLKQW00@mmp2.samsung.com>; Tue, 08 Jul 2014 01:33:35 +0900 (KST) From: Jacek Anaszewski To: linux-media@vger.kernel.org Cc: kyungmin.park@samsung.com, b.zolnierkie@samsung.com, linux-samsung-soc@vger.kernel.org, Jacek Anaszewski Subject: [PATCH 7/9] s5p-jpeg: add chroma subsampling adjustment for Exynos3250 Date: Mon, 07 Jul 2014 18:32:08 +0200 Message-id: <1404750730-22996-8-git-send-email-j.anaszewski@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1404750730-22996-1-git-send-email-j.anaszewski@samsung.com> References: <1404750730-22996-1-git-send-email-j.anaszewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrFJMWRmVeSWpSXmKPExsVy+t9jQd37p3cFG2xuVrDYOGM9q0Xv1eeM Fmeb3rBb9GzYymox4/w+JgdWj74tqxg9Pm+SC2CK4rJJSc3JLEst0rdL4Mr4PXcZW8Eb0YrV O08yNzA+F+xi5OSQEDCRWNB4jQXCFpO4cG89WxcjF4eQwHRGia7zs9ghnHYmif7Ty5hBqtgE DCV+vnjNBGKLCMhLPOm9AdbBLNDJKLGwfQMrSEJYwF9iy/12MJtFQFVizuceMJtXwEPi3uI3 jF2MHEDrFCTmTLIBCXMKeEocXvaZFSQsBFRy8LXlBEbeBYwMqxhFUwuSC4qT0nMN9YoTc4tL 89L1kvNzNzGCQ+SZ1A7GlQ0WhxgFOBiVeHhXHNwVLMSaWFZcmXuIUYKDWUmEd8VyoBBvSmJl VWpRfnxRaU5q8SFGaQ4WJXHeA63WgUIC6YklqdmpqQWpRTBZJg5OqQbGlqePpCdf2HrZcIXs 9107n1ZvEFm3x/uolT+H/Dvr/TkP1H9G2ohW/9s6/WVai/PCuslpISWBvw3EV/TL7ji5r9Tp 9JJbEjPU1pcv+SBXnFIdaHfiy45lkWyOCnYBPXd572YeFlO8ky7PvlTvU7Lz12gDhy0id+2a pubZqpq5nn+mmm76neehEktxRqKhFnNRcSIAp3Ci2g0CAAA= Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Take into account limitations specific to the Exynos3250 SoC, regarding setting chroma subsampling control value. Signed-off-by: Jacek Anaszewski Signed-off-by: Kyungmin Park --- drivers/media/platform/s5p-jpeg/jpeg-core.c | 59 +++++++++++++++++---------- 1 file changed, 38 insertions(+), 21 deletions(-) diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c index 1ef004b..283249d 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c @@ -1603,36 +1603,53 @@ static int s5p_jpeg_g_volatile_ctrl(struct v4l2_ctrl *ctrl) return 0; } -static int s5p_jpeg_try_ctrl(struct v4l2_ctrl *ctrl) +static int s5p_jpeg_adjust_subs_ctrl(struct s5p_jpeg_ctx *ctx, int *ctrl_val) { - struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&ctx->jpeg->slock, flags); - - if (ctrl->id == V4L2_CID_JPEG_CHROMA_SUBSAMPLING) { - if (ctx->jpeg->variant->version == SJPEG_S5P) - goto error_free; + switch (ctx->jpeg->variant->version) { + case SJPEG_S5P: + return 0; + case SJPEG_EXYNOS3250: + /* + * The exynos3250 device can produce JPEG image only + * of 4:4:4 subsampling when given RGB32 source image. + */ + if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB32) + *ctrl_val = 0; + break; + case SJPEG_EXYNOS4: /* * The exynos4x12 device requires input raw image fourcc * to be V4L2_PIX_FMT_GREY if gray jpeg format * is to be set. */ if (ctx->out_q.fmt->fourcc != V4L2_PIX_FMT_GREY && - ctrl->val == V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY) { - ret = -EINVAL; - goto error_free; - } - /* - * The exynos4x12 device requires resulting jpeg subsampling - * not to be lower than the input raw image subsampling. - */ - if (ctx->out_q.fmt->subsampling > ctrl->val) - ctrl->val = ctx->out_q.fmt->subsampling; + *ctrl_val == V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY) + return -EINVAL; + break; } -error_free: + /* + * The exynos4x12 and exynos3250 devices require resulting + * jpeg subsampling not to be lower than the input raw image + * subsampling. + */ + if (ctx->out_q.fmt->subsampling > *ctrl_val) + *ctrl_val = ctx->out_q.fmt->subsampling; + + return 0; +} + +static int s5p_jpeg_try_ctrl(struct v4l2_ctrl *ctrl) +{ + struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&ctx->jpeg->slock, flags); + + if (ctrl->id == V4L2_CID_JPEG_CHROMA_SUBSAMPLING) + ret = s5p_jpeg_adjust_subs_ctrl(ctx, &ctrl->val); + spin_unlock_irqrestore(&ctx->jpeg->slock, flags); return ret; }