From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D15ABC35674 for ; Sun, 23 Feb 2020 03:45:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B2D5208C3 for ; Sun, 23 Feb 2020 03:45:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=sholland.org header.i=@sholland.org header.b="OVAe4Sx4"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="u+rr7xFz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726965AbgBWDph (ORCPT ); Sat, 22 Feb 2020 22:45:37 -0500 Received: from new4-smtp.messagingengine.com ([66.111.4.230]:50651 "EHLO new4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726983AbgBWDph (ORCPT ); Sat, 22 Feb 2020 22:45:37 -0500 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailnew.nyi.internal (Postfix) with ESMTP id CAA9F6A25; Sat, 22 Feb 2020 22:45:35 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Sat, 22 Feb 2020 22:45:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sholland.org; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=nH7Kmg7ThlWd7 kEVdMu3S/euAwB/rKaoU3VHdY5QxBQ=; b=OVAe4Sx446LxGgN5sp1ikghZE7vAR O9pJYZuq22lK0wfTAr3jJsryYqoAJ5DogOJ4JZNW4l2oKVC0Vzc1knQVb32VdHGv BLCN+OX1IUrFzaUBeSdKmPe6XWVyuZgoeOJUcJmaqijqgj80j9R3ovhBLZD+WWi7 rC0RR7jMk1UaZ5A9DT1cVLxW7cUMUfjTkudqqD75QumsQq0uzkBopXJDpOrPTs0+ 3/k6qnarHW2QtCSjR2tsHcoQ33nldPUxN/Y8USiJEWpx8ZcEbCc9/duhxcmQsTxB 79XzGTPyqDArJv+7uO8b9RmHTCr9vjMnjbgwg5hguc1ZBrFwEp+QgUq6g== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=nH7Kmg7ThlWd7kEVdMu3S/euAwB/rKaoU3VHdY5QxBQ=; b=u+rr7xFz EzRsweMFroTrcBPjNfiLh+lsfVdofaxUzMmJFL0xF4latTvCHfpHs4vHOmT142F0 AZHjT0FzhUlOl2oE1SGV1XoZdiZjRPaQcSXRWBTqegCfjJCTOsULNRCz3V05Kick 4koySjvhzuWjR6Tn6BgqYNFYHovkxdAtZIeRVdutj8ayzqctLfqMy99Wb3qhlyT4 CglMhK6N5OJPIr2BEFLViKhVfCoVMzN+f/+Q9C6QyAOnxgLsbc5I23SzBlXah5c3 GqvKv7iasWCbHOeF2hozFVhlBqkuVr3IqK4nKZxapOCtnwEj30UOeSnTFKWsKdUv 2aff2/f3uj9loA== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedugedrkeejgdeitdcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufgrmhhuvghl ucfjohhllhgrnhguuceoshgrmhhuvghlsehshhholhhlrghnugdrohhrgheqnecukfhppe ejtddrudefhedrudegkedrudehudenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgr mhepmhgrihhlfhhrohhmpehsrghmuhgvlhesshhhohhllhgrnhgurdhorhhg X-ME-Proxy: Received: from titanium.stl.sholland.net (70-135-148-151.lightspeed.stlsmo.sbcglobal.net [70.135.148.151]) by mail.messagingengine.com (Postfix) with ESMTPA id E22E43060FCB; Sat, 22 Feb 2020 22:45:34 -0500 (EST) From: Samuel Holland To: Mark Brown , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Jonathan Corbet , Jerome Brunet Cc: Ondrej Jirman , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Samuel Holland Subject: [PATCH v3 2/3] ASoC: pcm: Export parameter intersection logic Date: Sat, 22 Feb 2020 21:45:32 -0600 Message-Id: <20200223034533.1035-3-samuel@sholland.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200223034533.1035-1-samuel@sholland.org> References: <20200223034533.1035-1-samuel@sholland.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org The logic to calculate the subset of stream parameters supported by all DAIs associated with a PCM stream is nontrivial. Export a helper function so it can be used to set up simple codec2codec DAI links. Signed-off-by: Samuel Holland --- include/sound/soc.h | 3 +++ sound/soc/soc-pcm.c | 55 ++++++++++++++++++++++++++++++++------------- 2 files changed, 42 insertions(+), 16 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index f0e4f36f83bf..8724928d02c5 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -471,6 +471,9 @@ bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd); void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream); void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream); +int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hardware *hw, int stream); + int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, unsigned int dai_fmt); diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index ff1b7c7078e5..6680d31eece3 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -402,11 +402,18 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) soc_pcm_set_msb(substream, cpu_bits); } -static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) +/** + * snd_soc_runtime_calc_hw() - Calculate hw limits for a PCM stream + * @rtd: ASoC PCM runtime + * @hw: PCM hardware parameters (output) + * @stream: Direction of the PCM stream + * + * Calculates the subset of stream parameters supported by all DAIs + * associated with the PCM stream. + */ +int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hardware *hw, int stream) { - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_pcm_hardware *hw = &runtime->hw; - struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai; struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; struct snd_soc_dai_driver *codec_dai_drv; @@ -418,7 +425,7 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) u64 formats = ULLONG_MAX; int i; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + if (stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_stream = &cpu_dai_drv->playback; else cpu_stream = &cpu_dai_drv->capture; @@ -431,16 +438,12 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) * Otherwise, since the rate, channel, and format values will * zero in that case, we would have no usable settings left, * causing the resulting setup to fail. - * At least one CODEC should match, otherwise we should have - * bailed out on a higher level, since there would be no - * CODEC to support the transfer direction in that case. */ - if (!snd_soc_dai_stream_valid(codec_dai, - substream->stream)) + if (!snd_soc_dai_stream_valid(codec_dai, stream)) continue; codec_dai_drv = codec_dai->driver; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + if (stream == SNDRV_PCM_STREAM_PLAYBACK) codec_stream = &codec_dai_drv->playback; else codec_stream = &codec_dai_drv->capture; @@ -452,6 +455,9 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); } + if (!chan_min) + return -EINVAL; + /* * chan min/max cannot be enforced if there are multiple CODEC DAIs * connected to a single CPU DAI, use CPU DAI's directly and let @@ -464,18 +470,35 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) hw->channels_min = max(chan_min, cpu_stream->channels_min); hw->channels_max = min(chan_max, cpu_stream->channels_max); - if (hw->formats) - hw->formats &= formats & cpu_stream->formats; - else - hw->formats = formats & cpu_stream->formats; + hw->formats = formats & cpu_stream->formats; hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); - snd_pcm_limit_hw_rates(runtime); + snd_pcm_hw_limit_rates(hw); hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); hw->rate_min = max(hw->rate_min, rate_min); hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); hw->rate_max = min_not_zero(hw->rate_max, rate_max); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_runtime_calc_hw); + +static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) +{ + struct snd_pcm_hardware *hw = &substream->runtime->hw; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + u64 formats = hw->formats; + + /* + * At least one CODEC should match, otherwise we should have + * bailed out on a higher level, since there would be no + * CODEC to support the transfer direction in that case. + */ + snd_soc_runtime_calc_hw(rtd, hw, substream->stream); + + if (formats) + hw->formats &= formats; } static int soc_pcm_components_open(struct snd_pcm_substream *substream, -- 2.24.1