From patchwork Wed Aug 1 19:12:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steve Longerbeam X-Patchwork-Id: 10553329 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 873EB15E2 for ; Thu, 2 Aug 2018 07:25:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 701CA2AF45 for ; Thu, 2 Aug 2018 07:25:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 622122AF7C; Thu, 2 Aug 2018 07:25:44 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BCE9D2AF45 for ; Thu, 2 Aug 2018 07:25:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8AAB76E520; Thu, 2 Aug 2018 07:20:11 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pl0-x242.google.com (mail-pl0-x242.google.com [IPv6:2607:f8b0:400e:c01::242]) by gabe.freedesktop.org (Postfix) with ESMTPS id 61D706E044 for ; Wed, 1 Aug 2018 19:12:41 +0000 (UTC) Received: by mail-pl0-x242.google.com with SMTP id x6-v6so9231802plv.10 for ; Wed, 01 Aug 2018 12:12:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=OiUro2B3BRRZ6D643C/2qbSbOYXQHcAEAEDDowVOglw=; b=bkLpbr1wsDQDzmsIsD2iYgzL22dAK5Pr8PR9DUhK2cxUeVkc8J/hwtU4vGiPx7UQfP LXteYrG9LEp1bitWmHz5y33DFvB3z5BtWQfiKaoC52TKkF+MmRdmWN34hMt/R09On8PN KG37MI1fP/4bc+8MUIl2x7d7ddrQRitMeLAx8eDAXZcwlNEmCw2n0hn5HUNxI6QtM9fG EhJccBA65f2DoVVjKDte13QaUXOu5L9UVBEhzPjc8bkK1ywrY/YWoRckSjon+4JXJXoX Uufkv4X0gQVYdpxVG14r5I+ec41RQpChOwUUHwsjB+ciXSrcLw1k/EZMaRQoVQmlBACd kITA== X-Gm-Message-State: AOUpUlFhjt8FEagAilz40Z1bov+SWdsLC8QOZDDL/j/ZtikMdr8q21ub uHTpwbTn/mAxX4Ea4jdX72I= X-Google-Smtp-Source: AAOMgpcRrpjVXrhOWKHyVHHz8Yt1FPzHX965imzXQwLc8SUtaMCt0QPUkAxBMQpEwonvP4rKdziPJQ== X-Received: by 2002:a17:902:8a92:: with SMTP id p18-v6mr26111869plo.148.1533150760914; Wed, 01 Aug 2018 12:12:40 -0700 (PDT) Received: from mappy.world.mentorg.com (c-24-5-209-231.hsd1.ca.comcast.net. [24.5.209.231]) by smtp.googlemail.com with ESMTPSA id u42-v6sm31171336pgn.1.2018.08.01.12.12.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 01 Aug 2018 12:12:40 -0700 (PDT) From: Steve Longerbeam X-Google-Original-From: Steve Longerbeam To: linux-media@vger.kernel.org Subject: [PATCH v3 03/14] gpu: ipu-csi: Swap fields according to input/output field types Date: Wed, 1 Aug 2018 12:12:16 -0700 Message-Id: <1533150747-30677-4-git-send-email-steve_longerbeam@mentor.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1533150747-30677-1-git-send-email-steve_longerbeam@mentor.com> References: <1533150747-30677-1-git-send-email-steve_longerbeam@mentor.com> X-Mailman-Approved-At: Thu, 02 Aug 2018 07:19:10 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "open list:STAGING SUBSYSTEM" , "open list:FRAMEBUFFER LAYER" , Steve Longerbeam , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , open list , "open list:DRM DRIVERS FOR FREESCALE IMX" , Steve Longerbeam , Mauro Carvalho Chehab MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The function ipu_csi_init_interface() was inverting the F-bit for NTSC case, in the CCIR_CODE_1/2 registers. The result being that for NTSC bottom-top field order, the CSI would swap fields and capture in top-bottom order. Instead, base field swap on the field order of the input to the CSI, and the field order of the requested output. If the input/output fields are sequential but different, swap fields, otherwise do not swap. This requires passing both the input and output mbus frame formats to ipu_csi_init_interface(). Move this code to a new private function ipu_csi_set_bt_interlaced_codes() that programs the CCIR_CODE_1/2 registers for interlaced BT.656 (and possibly interlaced BT.1120 in the future). When detecting input video standard from the input frame width/height, make sure to double height if input field type is alternate, since in that case input height only includes lines for one field. Signed-off-by: Steve Longerbeam --- drivers/gpu/ipu-v3/ipu-csi.c | 133 +++++++++++++++++++++--------- drivers/staging/media/imx/imx-media-csi.c | 13 +-- include/video/imx-ipu-v3.h | 3 +- 3 files changed, 98 insertions(+), 51 deletions(-) diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c index 5450a2d..7a845c9 100644 --- a/drivers/gpu/ipu-v3/ipu-csi.c +++ b/drivers/gpu/ipu-v3/ipu-csi.c @@ -315,6 +315,15 @@ static int mbus_code_to_bus_cfg(struct ipu_csi_bus_config *cfg, u32 mbus_code) return 0; } +/* translate alternate field mode based on given standard */ +static inline enum v4l2_field +ipu_csi_translate_field(enum v4l2_field field, v4l2_std_id std) +{ + return (field != V4L2_FIELD_ALTERNATE) ? field : + ((std & V4L2_STD_525_60) ? + V4L2_FIELD_SEQ_BT : V4L2_FIELD_SEQ_TB); +} + /* * Fill a CSI bus config struct from mbus_config and mbus_framefmt. */ @@ -358,19 +367,73 @@ static void fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg, } } +static int ipu_csi_set_bt_interlaced_codes(struct ipu_csi *csi, + struct v4l2_mbus_framefmt *infmt, + struct v4l2_mbus_framefmt *outfmt, + v4l2_std_id std) +{ + enum v4l2_field infield, outfield; + bool swap_fields; + + /* get translated field type of input and output */ + infield = ipu_csi_translate_field(infmt->field, std); + outfield = ipu_csi_translate_field(outfmt->field, std); + + /* + * Write the H-V-F codes the CSI will match against the + * incoming data for start/end of active and blanking + * field intervals. If input and output field types are + * sequential but not the same (one is SEQ_BT and the other + * is SEQ_TB), swap the F-bit so that the CSI will capture + * field 1 lines before field 0 lines. + */ + swap_fields = (V4L2_FIELD_IS_SEQUENTIAL(infield) && + V4L2_FIELD_IS_SEQUENTIAL(outfield) && + infield != outfield); + + if (!swap_fields) { + /* + * Field0BlankEnd = 110, Field0BlankStart = 010 + * Field0ActiveEnd = 100, Field0ActiveStart = 000 + * Field1BlankEnd = 111, Field1BlankStart = 011 + * Field1ActiveEnd = 101, Field1ActiveStart = 001 + */ + ipu_csi_write(csi, 0x40596 | CSI_CCIR_ERR_DET_EN, + CSI_CCIR_CODE_1); + ipu_csi_write(csi, 0xD07DF, CSI_CCIR_CODE_2); + } else { + dev_dbg(csi->ipu->dev, "capture field swap\n"); + + /* same as above but with F-bit inverted */ + ipu_csi_write(csi, 0xD07DF | CSI_CCIR_ERR_DET_EN, + CSI_CCIR_CODE_1); + ipu_csi_write(csi, 0x40596, CSI_CCIR_CODE_2); + } + + ipu_csi_write(csi, 0xFF0000, CSI_CCIR_CODE_3); + + return 0; +} + + int ipu_csi_init_interface(struct ipu_csi *csi, struct v4l2_mbus_config *mbus_cfg, - struct v4l2_mbus_framefmt *mbus_fmt) + struct v4l2_mbus_framefmt *infmt, + struct v4l2_mbus_framefmt *outfmt) { struct ipu_csi_bus_config cfg; unsigned long flags; u32 width, height, data = 0; + v4l2_std_id std; + int ret = 0; - fill_csi_bus_cfg(&cfg, mbus_cfg, mbus_fmt); + fill_csi_bus_cfg(&cfg, mbus_cfg, infmt); /* set default sensor frame width and height */ - width = mbus_fmt->width; - height = mbus_fmt->height; + width = infmt->width; + height = infmt->height; + if (infmt->field == V4L2_FIELD_ALTERNATE) + height *= 2; /* Set the CSI_SENS_CONF register remaining fields */ data |= cfg.data_width << CSI_SENS_CONF_DATA_WIDTH_SHIFT | @@ -397,42 +460,33 @@ int ipu_csi_init_interface(struct ipu_csi *csi, ipu_csi_write(csi, 0xFF0000, CSI_CCIR_CODE_3); break; case IPU_CSI_CLK_MODE_CCIR656_INTERLACED: - if (mbus_fmt->width == 720 && mbus_fmt->height == 576) { - /* - * PAL case - * - * Field0BlankEnd = 0x6, Field0BlankStart = 0x2, - * Field0ActiveEnd = 0x4, Field0ActiveStart = 0 - * Field1BlankEnd = 0x7, Field1BlankStart = 0x3, - * Field1ActiveEnd = 0x5, Field1ActiveStart = 0x1 - */ - height = 625; /* framelines for PAL */ - - ipu_csi_write(csi, 0x40596 | CSI_CCIR_ERR_DET_EN, - CSI_CCIR_CODE_1); - ipu_csi_write(csi, 0xD07DF, CSI_CCIR_CODE_2); - ipu_csi_write(csi, 0xFF0000, CSI_CCIR_CODE_3); - } else if (mbus_fmt->width == 720 && mbus_fmt->height == 480) { - /* - * NTSC case - * - * Field0BlankEnd = 0x7, Field0BlankStart = 0x3, - * Field0ActiveEnd = 0x5, Field0ActiveStart = 0x1 - * Field1BlankEnd = 0x6, Field1BlankStart = 0x2, - * Field1ActiveEnd = 0x4, Field1ActiveStart = 0 - */ - height = 525; /* framelines for NTSC */ - - ipu_csi_write(csi, 0xD07DF | CSI_CCIR_ERR_DET_EN, - CSI_CCIR_CODE_1); - ipu_csi_write(csi, 0x40596, CSI_CCIR_CODE_2); - ipu_csi_write(csi, 0xFF0000, CSI_CCIR_CODE_3); - } else { + std = V4L2_STD_UNKNOWN; + if (width == 720) { + switch (height) { + case 480: + std = V4L2_STD_NTSC; + break; + case 576: + std = V4L2_STD_PAL; + break; + default: + break; + } + } + + if (std == V4L2_STD_UNKNOWN) { dev_err(csi->ipu->dev, - "Unsupported CCIR656 interlaced video mode\n"); - spin_unlock_irqrestore(&csi->lock, flags); - return -EINVAL; + "Unsupported interlaced video mode\n"); + ret = -EINVAL; + goto out_unlock; } + + ret = ipu_csi_set_bt_interlaced_codes(csi, infmt, outfmt, std); + if (ret) + goto out_unlock; + + /* framelines for NTSC / PAL */ + height = (std & V4L2_STD_525_60) ? 525 : 625; break; case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_DDR: case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR: @@ -457,9 +511,10 @@ int ipu_csi_init_interface(struct ipu_csi *csi, dev_dbg(csi->ipu->dev, "CSI_ACT_FRM_SIZE = 0x%08X\n", ipu_csi_read(csi, CSI_ACT_FRM_SIZE)); +out_unlock: spin_unlock_irqrestore(&csi->lock, flags); - return 0; + return ret; } EXPORT_SYMBOL_GPL(ipu_csi_init_interface); diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index 4647206..2fdd21d 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -663,7 +663,6 @@ static int csi_setup(struct csi_priv *priv) struct v4l2_mbus_framefmt *infmt, *outfmt; const struct imx_media_pixfmt *incc; struct v4l2_mbus_config mbus_cfg; - struct v4l2_mbus_framefmt if_fmt; struct v4l2_rect crop; infmt = &priv->format_mbus[CSI_SINK_PAD]; @@ -676,22 +675,14 @@ static int csi_setup(struct csi_priv *priv) priv->upstream_ep.bus.parallel.flags : priv->upstream_ep.bus.mipi_csi2.flags; - /* - * we need to pass input frame to CSI interface, but - * with translated field type from output format - */ - if_fmt = *infmt; - if_fmt.field = outfmt->field; crop = priv->crop; /* * if cycles is set, we need to handle this over multiple cycles as * generic/bayer data */ - if (is_parallel_bus(&priv->upstream_ep) && incc->cycles) { - if_fmt.width *= incc->cycles; + if (is_parallel_bus(&priv->upstream_ep) && incc->cycles) crop.width *= incc->cycles; - } ipu_csi_set_window(priv->csi, &crop); @@ -699,7 +690,7 @@ static int csi_setup(struct csi_priv *priv) priv->crop.width == 2 * priv->compose.width, priv->crop.height == 2 * priv->compose.height); - ipu_csi_init_interface(priv->csi, &mbus_cfg, &if_fmt); + ipu_csi_init_interface(priv->csi, &mbus_cfg, infmt, outfmt); ipu_csi_set_dest(priv->csi, priv->dest); diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h index abbad94..f44a351 100644 --- a/include/video/imx-ipu-v3.h +++ b/include/video/imx-ipu-v3.h @@ -352,7 +352,8 @@ int ipu_prg_channel_configure(struct ipuv3_channel *ipu_chan, struct ipu_csi; int ipu_csi_init_interface(struct ipu_csi *csi, struct v4l2_mbus_config *mbus_cfg, - struct v4l2_mbus_framefmt *mbus_fmt); + struct v4l2_mbus_framefmt *infmt, + struct v4l2_mbus_framefmt *outfmt); bool ipu_csi_is_interlaced(struct ipu_csi *csi); void ipu_csi_get_window(struct ipu_csi *csi, struct v4l2_rect *w); void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w);