From patchwork Thu Oct 26 07:03:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 738865 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D4BBC25B6D for ; Thu, 26 Oct 2023 07:03:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344111AbjJZHDp (ORCPT ); Thu, 26 Oct 2023 03:03:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34496 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230029AbjJZHDn (ORCPT ); Thu, 26 Oct 2023 03:03:43 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D865E129 for ; Thu, 26 Oct 2023 00:03:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698303820; x=1729839820; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wH4uya9ny0olxIHRzH1PwUqTLVrinXqoUmuqqRf3ZYE=; b=MmTDUBiHi0rsGBdZjgthmJyMSxJo78gXidyOYgr3QLyXYTN14G87dcHd EDD7YDridsEnEi51MWjah1d6ZcmkmejIXR/g/vYb3mmmena4YcYsracVR B4he+2+AW9/+PXsddUbbcPgnIt4CWK0LiSLZN3UIhtyBfm2MCSmyJA4VK Eg+80ntmPXEgNudAHI+uZeilgnCRtf5Vk3BIomGERdLDAvDkQ3Akr+FPT w3njpdAxOTHMtMlVtF6McDI8dgqKiSoM/pys+/004ohDHP50mpIHHUtCa 50IwNZ5WaTQe0jwVQ6ANIK3ogbd4cHcLbGPSnD/d09JiWv/j9p+P3Iu4A A==; X-IronPort-AV: E=McAfee;i="6600,9927,10874"; a="451711526" X-IronPort-AV: E=Sophos;i="6.03,253,1694761200"; d="scan'208";a="451711526" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2023 00:03:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10874"; a="902795779" X-IronPort-AV: E=Sophos;i="6.03,253,1694761200"; d="scan'208";a="902795779" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2023 00:01:11 -0700 Received: from svinhufvud.ger.corp.intel.com (localhost [IPv6:::1]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 67C031202BB; Thu, 26 Oct 2023 10:03:33 +0300 (EEST) From: Sakari Ailus To: linux-media@vger.kernel.org Cc: hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, tomi.valkeinen@ideasonboard.com, jacopo.mondi@ideasonboard.com, bingbu.cao@intel.com, hongju.wang@intel.com, Alain Volmat Subject: [PATCH v4 2/9] media: v4l: subdev: Also return pads array information on stream functions Date: Thu, 26 Oct 2023 10:03:22 +0300 Message-Id: <20231026070329.948847-3-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231026070329.948847-1-sakari.ailus@linux.intel.com> References: <20231026070329.948847-1-sakari.ailus@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org There are two sets of functions that return information from sub-device state, one for stream-unaware users and another for stream-aware users. Add support for stream-aware functions to return format, crop and compose information from pad-based array that are functionally equivalent to the old, stream-unaware ones. Also check state is non-NULL, in order to guard against old drivers potentially calling this with NULL state for active formats or selection rectangles. Signed-off-by: Sakari Ailus Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- drivers/media/v4l2-core/v4l2-subdev.c | 51 +++++++++++++++++++++++++++ include/media/v4l2-subdev.h | 9 +++-- 2 files changed, 57 insertions(+), 3 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index ee4fe8f33a41..7feaea6b04ad 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -1684,6 +1684,23 @@ v4l2_subdev_state_get_stream_format(struct v4l2_subdev_state *state, struct v4l2_subdev_stream_configs *stream_configs; unsigned int i; + if (WARN_ON(!state)) + return NULL; + + if (state->pads) { + if (stream) + return NULL; + + /* + * Set the pad to 0 on error as this is aligned with the + * behaviour of the pad state information access functions. + */ + if (WARN_ON(pad >= state->sd->entity.num_pads)) + pad = 0; + + return &state->pads[pad].try_fmt; + } + lockdep_assert_held(state->lock); stream_configs = &state->stream_configs; @@ -1705,6 +1722,23 @@ v4l2_subdev_state_get_stream_crop(struct v4l2_subdev_state *state, struct v4l2_subdev_stream_configs *stream_configs; unsigned int i; + if (WARN_ON(!state)) + return NULL; + + if (state->pads) { + if (stream) + return NULL; + + /* + * Set the pad to 0 on error as this is aligned with the + * behaviour of the pad state information access functions. + */ + if (WARN_ON(pad >= state->sd->entity.num_pads)) + pad = 0; + + return &state->pads[pad].try_crop; + } + lockdep_assert_held(state->lock); stream_configs = &state->stream_configs; @@ -1726,6 +1760,23 @@ v4l2_subdev_state_get_stream_compose(struct v4l2_subdev_state *state, struct v4l2_subdev_stream_configs *stream_configs; unsigned int i; + if (WARN_ON(!state)) + return NULL; + + if (state->pads) { + if (stream) + return NULL; + + /* + * Set the pad to 0 on error as this is aligned with the + * behaviour of the pad state information access functions. + */ + if (WARN_ON(pad >= state->sd->entity.num_pads)) + pad = 0; + + return &state->pads[pad].try_compose; + } + lockdep_assert_held(state->lock); stream_configs = &state->stream_configs; diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 6a02a565035c..0ba1cd8c3ac7 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -1550,7 +1550,8 @@ int v4l2_subdev_set_routing_with_fmt(struct v4l2_subdev *sd, * This returns a pointer to &struct v4l2_mbus_framefmt for the given pad + * stream in the subdev state. * - * If the state does not contain the given pad + stream, NULL is returned. + * For stream-unaware drivers the format for the corresponding pad is returned. + * If the pad does not exist, NULL is returned. */ struct v4l2_mbus_framefmt * v4l2_subdev_state_get_stream_format(struct v4l2_subdev_state *state, @@ -1565,7 +1566,8 @@ v4l2_subdev_state_get_stream_format(struct v4l2_subdev_state *state, * This returns a pointer to crop rectangle for the given pad + stream in the * subdev state. * - * If the state does not contain the given pad + stream, NULL is returned. + * For stream-unaware drivers the crop rectangle for the corresponding pad is + * returned. If the pad does not exist, NULL is returned. */ struct v4l2_rect * v4l2_subdev_state_get_stream_crop(struct v4l2_subdev_state *state, @@ -1581,7 +1583,8 @@ v4l2_subdev_state_get_stream_crop(struct v4l2_subdev_state *state, * This returns a pointer to compose rectangle for the given pad + stream in the * subdev state. * - * If the state does not contain the given pad + stream, NULL is returned. + * For stream-unaware drivers the compose rectangle for the corresponding pad is + * returned. If the pad does not exist, NULL is returned. */ struct v4l2_rect * v4l2_subdev_state_get_stream_compose(struct v4l2_subdev_state *state,