From patchwork Thu Aug 22 08:05:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marco Felsch X-Patchwork-Id: 11108645 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 06794112C for ; Thu, 22 Aug 2019 08:06:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D5B6623406 for ; Thu, 22 Aug 2019 08:06:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731589AbfHVIGR (ORCPT ); Thu, 22 Aug 2019 04:06:17 -0400 Received: from metis.ext.pengutronix.de ([85.220.165.71]:36463 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731963AbfHVIGK (ORCPT ); Thu, 22 Aug 2019 04:06:10 -0400 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28] helo=dude02.lab.pengutronix.de) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1i0i6a-0005Y1-04; Thu, 22 Aug 2019 10:06:00 +0200 Received: from mfe by dude02.lab.pengutronix.de with local (Exim 4.89) (envelope-from ) id 1i0i6X-0005X1-RS; Thu, 22 Aug 2019 10:05:57 +0200 From: Marco Felsch To: mchehab@kernel.org, sakari.ailus@linux.intel.com, hans.verkuil@cisco.com, jacopo+renesas@jmondi.org, robh+dt@kernel.org, laurent.pinchart@ideasonboard.com Cc: devicetree@vger.kernel.org, kernel@pengutronix.de, linux-media@vger.kernel.org Subject: [PATCH v9 07/13] media: tvp5150: add FORMAT_TRY support for get/set selection handlers Date: Thu, 22 Aug 2019 10:05:50 +0200 Message-Id: <20190822080556.17109-8-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190822080556.17109-1-m.felsch@pengutronix.de> References: <20190822080556.17109-1-m.felsch@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: mfe@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 Since commit 10d5509c8d50 ("[media] v4l2: remove g/s_crop from video ops") the 'which' field for set/get_selection must be FORMAT_ACTIVE. There is no way to try different selections. The patch adds a helper function to select the correct selection memory space (sub-device file handle or driver state) which will be set/returned. The selection rectangle is updated if the format is FORMAT_ACTIVE and the rectangle position and/or size differs from the current set rectangle. Signed-off-by: Marco Felsch --- Changelog: v8: - adapt commit message - remove wrong FORMAT_TRY handling for tvp5150_fill_fmt() handling - return 0 during set_selection if FORMAT_TRY was requested and CONFIG_VIDEO_V4L2_SUBDEV_API is disabled - return -EINVAL during get_selection if FORMAT_TRY was requested and CONFIG_VIDEO_V4L2_SUBDEV_API is disabled v7: - __tvp5150_get_pad_crop(): return error on default case - simplify __tvp5150_get_pad_crop() error handling - tvp5150_set_selection() squash __tvp5150_set_selection() execution conditions v6: nothing v5: - handle stub for v4l2_subdev_get_try_crop() internal since commit ("media: v4l2-subdev: add stubs for v4l2_subdev_get_try_*") isn't anymore part of this series. - add error handling of __tvp5150_get_pad_crop() v4: - fix merge conflict due to rebase on top of media-tree/master - __tvp5150_get_pad_crop(): cosmetic alignment fixes --- drivers/media/i2c/tvp5150.c | 111 +++++++++++++++++++++++++----------- 1 file changed, 79 insertions(+), 32 deletions(-) diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c index 477a929d4f89..62a1c7c3a7c0 100644 --- a/drivers/media/i2c/tvp5150.c +++ b/drivers/media/i2c/tvp5150.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "tvp5150_reg.h" @@ -995,6 +996,23 @@ static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop) crop->height = TVP5150_V_MAX_OTHERS; } +static struct v4l2_rect * +__tvp5150_get_pad_crop(struct tvp5150 *decoder, + struct v4l2_subdev_pad_config *cfg, unsigned int pad, + enum v4l2_subdev_format_whence which) +{ + switch (which) { + case V4L2_SUBDEV_FORMAT_ACTIVE: + return &decoder->rect; + case V4L2_SUBDEV_FORMAT_TRY: +#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) + return v4l2_subdev_get_try_crop(&decoder->sd, cfg, pad); +#endif + default: + return ERR_PTR(-EINVAL); + } +} + static int tvp5150_fill_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) @@ -1019,36 +1037,68 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd, return 0; } +unsigned int tvp5150_get_hmax(struct v4l2_subdev *sd) +{ + struct tvp5150 *decoder = to_tvp5150(sd); + v4l2_std_id std; + + /* Calculate height based on current standard */ + if (decoder->norm == V4L2_STD_ALL) + std = tvp5150_read_std(sd); + else + std = decoder->norm; + + return (std & V4L2_STD_525_60) ? + TVP5150_V_MAX_525_60 : TVP5150_V_MAX_OTHERS; +} + +static inline void +__tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_rect rect) +{ + struct tvp5150 *decoder = to_tvp5150(sd); + unsigned int hmax = tvp5150_get_hmax(sd); + + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); + regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, + rect.top + rect.height - hmax); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, + rect.left >> TVP5150_CROP_SHIFT); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, + rect.left | (1 << TVP5150_CROP_SHIFT)); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, + (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> + TVP5150_CROP_SHIFT); + regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, + rect.left + rect.width - TVP5150_MAX_CROP_LEFT); +} + static int tvp5150_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { struct tvp5150 *decoder = to_tvp5150(sd); struct v4l2_rect rect = sel->r; - v4l2_std_id std; - int hmax; + struct v4l2_rect *crop; + unsigned int hmax; - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || - sel->target != V4L2_SEL_TGT_CROP) + if (sel->target != V4L2_SEL_TGT_CROP) return -EINVAL; dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n", __func__, rect.left, rect.top, rect.width, rect.height); + /* + * Do not apply the request in case of FORMAT_TRY and disabled + * CONFIG_VIDEO_V4L2_SUBDEV_API support. + */ + crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, sel->which); + if (IS_ERR(crop)) + return 0; + /* tvp5150 has some special limits */ rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT); rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP); - - /* Calculate height based on current standard */ - if (decoder->norm == V4L2_STD_ALL) - std = tvp5150_read_std(sd); - else - std = decoder->norm; - - if (std & V4L2_STD_525_60) - hmax = TVP5150_V_MAX_525_60; - else - hmax = TVP5150_V_MAX_OTHERS; + hmax = tvp5150_get_hmax(sd); /* * alignments: @@ -1061,20 +1111,15 @@ static int tvp5150_set_selection(struct v4l2_subdev *sd, hmax - TVP5150_MAX_CROP_TOP - rect.top, hmax - rect.top, 0, 0); - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top); - regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, - rect.top + rect.height - hmax); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB, - rect.left >> TVP5150_CROP_SHIFT); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB, - rect.left | (1 << TVP5150_CROP_SHIFT)); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB, - (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >> - TVP5150_CROP_SHIFT); - regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB, - rect.left + rect.width - TVP5150_MAX_CROP_LEFT); + /* + * Update output image size if the selection (crop) rectangle size or + * position has been modified. + */ + if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE && + !v4l2_rect_equal(&rect, crop)) + __tvp5150_set_selection(sd, rect); - decoder->rect = rect; + *crop = rect; return 0; } @@ -1084,11 +1129,9 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_selection *sel) { struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd); + struct v4l2_rect *crop; v4l2_std_id std; - if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) - return -EINVAL; - switch (sel->target) { case V4L2_SEL_TGT_CROP_BOUNDS: sel->r.left = 0; @@ -1106,7 +1149,11 @@ static int tvp5150_get_selection(struct v4l2_subdev *sd, sel->r.height = TVP5150_V_MAX_OTHERS; return 0; case V4L2_SEL_TGT_CROP: - sel->r = decoder->rect; + crop = __tvp5150_get_pad_crop(decoder, cfg, sel->pad, + sel->which); + if (IS_ERR(crop)) + return PTR_ERR(crop); + sel->r = *crop; return 0; default: return -EINVAL;