From patchwork Tue May 8 10:45:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shreyas NC X-Patchwork-Id: 10385919 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B8A2160236 for ; Tue, 8 May 2018 10:48:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5865528894 for ; Tue, 8 May 2018 10:48:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4C3D328942; Tue, 8 May 2018 10:48:32 +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=-2.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D93C128894 for ; Tue, 8 May 2018 10:48:30 +0000 (UTC) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id BF2A02676BC; Tue, 8 May 2018 12:48:21 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 255D92676B2; Tue, 8 May 2018 12:48:19 +0200 (CEST) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by alsa0.perex.cz (Postfix) with ESMTP id D3ED62676AC for ; Tue, 8 May 2018 12:48:15 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 May 2018 03:48:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,378,1520924400"; d="scan'208";a="44110424" Received: from snc-desk.iind.intel.com ([10.223.96.118]) by fmsmga002.fm.intel.com with ESMTP; 08 May 2018 03:48:13 -0700 From: Shreyas NC To: alsa-devel@alsa-project.org Date: Tue, 8 May 2018 16:15:33 +0530 Message-Id: <1525776335-26259-2-git-send-email-shreyas.nc@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1525776335-26259-1-git-send-email-shreyas.nc@intel.com> References: <1525776335-26259-1-git-send-email-shreyas.nc@intel.com> Cc: ckeepax@opensource.cirrus.com, patches.audio@intel.com, liam.r.girdwood@linux.intel.com, Vinod Koul , broonie@kernel.org, Shreyas NC Subject: [alsa-devel] [PATCH v4 1/3] ASoC: Add initial support for multiple CPU DAIs X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP ASoC core supports multiple codec DAIs but supports only a CPU DAI. To support multiple cpu DAIs, add cpu_dai and num_cpu_dai in snd_soc_dai_link and snd_soc_pcm_runtime structures similar to support for codec_dai. Inline with multiple codec DAI approach, add support to allocate, init, bind and probe multiple cpu_dai on init if driver specifies that. Also add support to loop over multiple cpu_dai during suspend and resume Reviewed-by: Charles Keepax Signed-off-by: Vinod Koul Signed-off-by: Shreyas NC --- include/sound/soc.h | 6 ++ sound/soc/soc-core.c | 283 +++++++++++++++++++++++++++++++++++---------------- 2 files changed, 201 insertions(+), 88 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 9ea99e5..b614fe9 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1016,6 +1016,9 @@ struct snd_soc_dai_link { struct snd_soc_dai_link_component *codecs; unsigned int num_codecs; + struct snd_soc_dai_link_component *cpu_dai; + unsigned int num_cpu_dai; + /* * You MAY specify the link's platform/PCM/DMA driver, either by * device name, or by DT/OF node, but not both. Some forms of link @@ -1239,6 +1242,9 @@ struct snd_soc_pcm_runtime { struct snd_soc_dai **codec_dais; unsigned int num_codecs; + struct snd_soc_dai **cpu_dais; + unsigned int num_cpu_dai; + struct delayed_work delayed_work; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_dpcm_root; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4b068cc..61f7640 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -558,12 +558,21 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( return NULL; } + rtd->cpu_dais = kzalloc(sizeof(struct snd_soc_dai *) * + dai_link->num_cpu_dai, GFP_KERNEL); + if (!rtd->cpu_dais) { + kfree(rtd->codec_dais); + kfree(rtd); + return NULL; + } + return rtd; } static void soc_free_pcm_runtime(struct snd_soc_pcm_runtime *rtd) { kfree(rtd->codec_dais); + kfree(rtd->cpu_dais); snd_soc_rtdcom_del_all(rtd); kfree(rtd); } @@ -659,13 +668,17 @@ int snd_soc_suspend(struct device *dev) card->suspend_pre(card); list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; if (rtd->dai_link->ignore_suspend) continue; - if (cpu_dai->driver->suspend && !cpu_dai->driver->bus_control) - cpu_dai->driver->suspend(cpu_dai); + for (i = 0; i < rtd->num_cpu_dai; i++) { + cpu_dai = rtd->cpu_dais[i]; + if (cpu_dai->driver->suspend && + !cpu_dai->driver->bus_control) + cpu_dai->driver->suspend(cpu_dai); + } } /* close any waiting streams */ @@ -729,16 +742,21 @@ int snd_soc_suspend(struct device *dev) } list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; - if (rtd->dai_link->ignore_suspend) - continue; + for (i = 0; i < rtd->num_cpu_dai; i++) { + cpu_dai = rtd->cpu_dais[i]; + + if (rtd->dai_link->ignore_suspend) + continue; - if (cpu_dai->driver->suspend && cpu_dai->driver->bus_control) - cpu_dai->driver->suspend(cpu_dai); + if (cpu_dai->driver->suspend && + cpu_dai->driver->bus_control) + cpu_dai->driver->suspend(cpu_dai); - /* deactivate pins to sleep state */ - pinctrl_pm_select_sleep_state(cpu_dai->dev); + /* deactivate pins to sleep state */ + pinctrl_pm_select_sleep_state(cpu_dai->dev); + } } if (card->suspend_post) @@ -773,13 +791,18 @@ static void soc_resume_deferred(struct work_struct *work) /* resume control bus DAIs */ list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; if (rtd->dai_link->ignore_suspend) continue; - if (cpu_dai->driver->resume && cpu_dai->driver->bus_control) - cpu_dai->driver->resume(cpu_dai); + for (i = 0; i < rtd->num_cpu_dai; i++) { + cpu_dai = rtd->cpu_dais[i]; + + if (cpu_dai->driver->resume && + cpu_dai->driver->bus_control) + cpu_dai->driver->resume(cpu_dai); + } } list_for_each_entry(component, &card->component_dev_list, card_list) { @@ -825,8 +848,13 @@ static void soc_resume_deferred(struct work_struct *work) if (rtd->dai_link->ignore_suspend) continue; - if (cpu_dai->driver->resume && !cpu_dai->driver->bus_control) - cpu_dai->driver->resume(cpu_dai); + for (i = 0; i < rtd->num_cpu_dai; i++) { + cpu_dai = rtd->cpu_dais[i]; + + if (cpu_dai->driver->resume && + !cpu_dai->driver->bus_control) + cpu_dai->driver->resume(cpu_dai); + } } if (card->resume_post) @@ -848,6 +876,7 @@ int snd_soc_resume(struct device *dev) struct snd_soc_card *card = dev_get_drvdata(dev); bool bus_control = false; struct snd_soc_pcm_runtime *rtd; + int i; /* If the card is not initialized yet there is nothing to do */ if (!card->instantiated) @@ -856,11 +885,16 @@ int snd_soc_resume(struct device *dev) /* activate pins from sleep state */ list_for_each_entry(rtd, &card->rtd_list, list) { struct snd_soc_dai **codec_dais = rtd->codec_dais; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai **cpu_dais = rtd->cpu_dais; + struct snd_soc_dai *cpu_dai; int j; - if (cpu_dai->active) - pinctrl_pm_select_default_state(cpu_dai->dev); + for (j = 0; j < rtd->num_cpu_dai; j++) { + cpu_dai = cpu_dais[j]; + + if (cpu_dai->active) + pinctrl_pm_select_default_state(cpu_dai->dev); + } for (j = 0; j < rtd->num_codecs; j++) { struct snd_soc_dai *codec_dai = codec_dais[j]; @@ -876,8 +910,11 @@ int snd_soc_resume(struct device *dev) * due to I/O costs and anti-pop so handle them out of line. */ list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - bus_control |= cpu_dai->driver->bus_control; + for (i = 0; i < rtd->num_cpu_dai; i++) { + struct snd_soc_dai *cpu_dai = rtd->cpu_dais[i]; + + bus_control |= cpu_dai->driver->bus_control; + } } if (bus_control) { dev_dbg(dev, "ASoC: Resuming control bus master immediately\n"); @@ -1022,35 +1059,47 @@ static int soc_bind_dai_link(struct snd_soc_card *card, { struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai_link_component *codecs = dai_link->codecs; - struct snd_soc_dai_link_component cpu_dai_component; + struct snd_soc_dai_link_component *cpu_dai_component; struct snd_soc_component *component; - struct snd_soc_dai **codec_dais; + struct snd_soc_dai **codec_dais, **cpu_dais; struct device_node *platform_of_node; const char *platform_name; int i; dev_dbg(card->dev, "ASoC: binding %s\n", dai_link->name); + cpu_dai_component = dai_link->cpu_dai; + if (soc_is_dai_link_bound(card, dai_link)) { dev_dbg(card->dev, "ASoC: dai link %s already bound\n", dai_link->name); return 0; } + if (dai_link->dynamic && dai_link->num_cpu_dai > 1) { + dev_err(card->dev, "ASoC: Multi CPU DAI not supported for FE"); + return -EINVAL; + } + rtd = soc_new_pcm_runtime(card, dai_link); if (!rtd) return -ENOMEM; - cpu_dai_component.name = dai_link->cpu_name; - cpu_dai_component.of_node = dai_link->cpu_of_node; - cpu_dai_component.dai_name = dai_link->cpu_dai_name; - rtd->cpu_dai = snd_soc_find_dai(&cpu_dai_component); - if (!rtd->cpu_dai) { - dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", - dai_link->cpu_dai_name); - goto _err_defer; + rtd->num_cpu_dai = dai_link->num_cpu_dai; + + cpu_dais = rtd->cpu_dais; + for (i = 0; i < rtd->num_cpu_dai; i++) { + cpu_dais[i] = snd_soc_find_dai(&cpu_dai_component[i]); + if (!cpu_dais[i]) { + dev_err(card->dev, "ASoC: CPU DAI %s not registered\n", + cpu_dai_component[i].dai_name); + goto _err_defer; + } + snd_soc_rtdcom_add(rtd, cpu_dais[i]->component); } - snd_soc_rtdcom_add(rtd, rtd->cpu_dai->component); + + /* Fill cpu_dai in the runtime data */ + rtd->cpu_dai = cpu_dais[0]; rtd->num_codecs = dai_link->num_codecs; @@ -1149,7 +1198,8 @@ static void soc_remove_link_dais(struct snd_soc_card *card, for (i = 0; i < rtd->num_codecs; i++) soc_remove_dai(rtd->codec_dais[i], order); - soc_remove_dai(rtd->cpu_dai, order); + for (i = 0; i < rtd->num_cpu_dai; i++) + soc_remove_dai(rtd->cpu_dais[i], order); } static void soc_remove_link_components(struct snd_soc_card *card, @@ -1221,6 +1271,30 @@ static int snd_soc_init_multicodec(struct snd_soc_card *card, return 0; } +static int snd_soc_init_single_cpu_dai(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) +{ + if (dai_link->cpu_name || dai_link->cpu_of_node || + dai_link->cpu_dai_name) { + dai_link->num_cpu_dai = 1; + dai_link->cpu_dai = devm_kzalloc(card->dev, + sizeof(struct snd_soc_dai_link_component), + GFP_KERNEL); + + if (!dai_link->cpu_dai) + return -ENOMEM; + + dai_link->cpu_dai[0].name = dai_link->cpu_name; + dai_link->cpu_dai[0].of_node = dai_link->cpu_of_node; + dai_link->cpu_dai[0].dai_name = dai_link->cpu_dai_name; + } else if (!dai_link->cpu_dai) { + dev_err(card->dev, "ASoC: DAI link has no DAIs\n"); + return -EINVAL; + } + + return 0; +} + static int soc_init_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link) { @@ -1232,6 +1306,12 @@ static int soc_init_dai_link(struct snd_soc_card *card, return ret; } + ret = snd_soc_init_single_cpu_dai(card, link); + if (ret) { + dev_err(card->dev, "ASoC: failed to init cpu\n"); + return ret; + } + for (i = 0; i < link->num_codecs; i++) { /* * Codec must be specified by 1 of name or OF node, @@ -1267,24 +1347,28 @@ static int soc_init_dai_link(struct snd_soc_card *card, * can be left unspecified, and will be matched based on DAI * name alone.. */ - if (link->cpu_name && link->cpu_of_node) { - dev_err(card->dev, - "ASoC: Neither/both cpu name/of_node are set for %s\n", - link->name); - return -EINVAL; - } - /* - * At least one of CPU DAI name or CPU device name/node must be - * specified - */ - if (!link->cpu_dai_name && - !(link->cpu_name || link->cpu_of_node)) { - dev_err(card->dev, - "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", - link->name); - return -EINVAL; - } + for (i = 0; i < link->num_cpu_dai; i++) { + if (link->cpu_dai[i].name && + link->cpu_dai[i].of_node) { + dev_err(card->dev, + "ASoC: Neither/both cpu name/of_node are set for %s\n", + link->cpu_dai[i].name); + return -EINVAL; + } + + /* + * At least one of CPU DAI name or CPU device name/node must be + * specified + */ + if (!link->cpu_dai[i].dai_name && + !(link->cpu_dai[i].name || link->cpu_dai[i].of_node)) { + dev_err(card->dev, + "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", + link->name); + return -EINVAL; + } + } return 0; } @@ -1604,6 +1688,9 @@ static int soc_link_dai_widgets(struct snd_soc_card *card, if (rtd->num_codecs > 1) dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n"); + if (rtd->num_cpu_dai > 1) + dev_warn(card->dev, "ASoC: Multiple CPU DAIs not supported yet\n"); + /* link the DAI widgets */ sink = codec_dai->playback_widget; source = cpu_dai->capture_widget; @@ -1638,7 +1725,6 @@ static int soc_probe_link_dais(struct snd_soc_card *card, struct snd_soc_pcm_runtime *rtd, int order) { struct snd_soc_dai_link *dai_link = rtd->dai_link; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int i, ret; dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", @@ -1647,9 +1733,11 @@ static int soc_probe_link_dais(struct snd_soc_card *card, /* set default power off timeout */ rtd->pmdown_time = pmdown_time; - ret = soc_probe_dai(cpu_dai, order); - if (ret) - return ret; + for (i = 0; i < rtd->num_cpu_dai; i++) { + ret = soc_probe_dai(rtd->cpu_dais[i], order); + if (ret) + return ret; + } /* probe the CODEC DAI */ for (i = 0; i < rtd->num_codecs; i++) { @@ -1685,9 +1773,13 @@ static int soc_probe_link_dais(struct snd_soc_card *card, soc_dpcm_debugfs_add(rtd); #endif - if (cpu_dai->driver->compress_new) { + if (rtd->cpu_dais[0]->driver->compress_new) { + if (rtd->num_cpu_dai > 1) + dev_warn(card->dev, + "ASoC: multi-cpu compress dais not supported"); + /*create compress_device"*/ - ret = cpu_dai->driver->compress_new(rtd, rtd->num); + ret = rtd->cpu_dais[0]->driver->compress_new(rtd, rtd->num); if (ret < 0) { dev_err(card->dev, "ASoC: can't create compress %s\n", dai_link->stream_name); @@ -1703,7 +1795,8 @@ static int soc_probe_link_dais(struct snd_soc_card *card, dai_link->stream_name, ret); return ret; } - ret = soc_link_dai_pcm_new(&cpu_dai, 1, rtd); + ret = soc_link_dai_pcm_new(rtd->cpu_dais, + rtd->num_cpu_dai, rtd); if (ret < 0) return ret; ret = soc_link_dai_pcm_new(rtd->codec_dais, @@ -1840,7 +1933,7 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, unsigned int dai_fmt) { struct snd_soc_dai **codec_dais = rtd->codec_dais; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai **cpu_dais = rtd->cpu_dais; unsigned int i; int ret; @@ -1857,34 +1950,44 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */ /* the component which has non_legacy_dai_naming is Codec */ - if (cpu_dai->codec || - cpu_dai->component->driver->non_legacy_dai_naming) { - unsigned int inv_dai_fmt; - - inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; - switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; - break; - case SND_SOC_DAIFMT_CBM_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; - break; - case SND_SOC_DAIFMT_CBS_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; - break; - case SND_SOC_DAIFMT_CBS_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; - break; - } + for (i = 0; i < rtd->num_cpu_dai; i++) { + struct snd_soc_dai *cpu_dai = cpu_dais[i]; + unsigned int inv_dai_fmt, temp_dai_fmt; - dai_fmt = inv_dai_fmt; - } + temp_dai_fmt = dai_fmt; + if (cpu_dai->codec || + cpu_dai->component->driver->non_legacy_dai_naming) { - ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) { - dev_warn(cpu_dai->dev, - "ASoC: Failed to set DAI format: %d\n", ret); - return ret; + inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; + + switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; + break; + + case SND_SOC_DAIFMT_CBM_CFS: + inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; + break; + + case SND_SOC_DAIFMT_CBS_CFM: + inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; + break; + + case SND_SOC_DAIFMT_CBS_CFS: + inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; + break; + + } + + temp_dai_fmt = inv_dai_fmt; + } + + ret = snd_soc_dai_set_fmt(cpu_dai, temp_dai_fmt); + if (ret != 0 && ret != -ENOTSUPP) { + dev_warn(cpu_dai->dev, + "ASoC: Failed to set DAI format: %d\n", ret); + return ret; + } } return 0; @@ -2328,10 +2431,11 @@ int snd_soc_poweroff(struct device *dev) /* deactivate pins to sleep state */ list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int i; - pinctrl_pm_select_sleep_state(cpu_dai->dev); + for (i = 0; i < rtd->num_cpu_dai; i++) + pinctrl_pm_select_sleep_state(rtd->cpu_dais[i]->dev); + for (i = 0; i < rtd->num_codecs; i++) { struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; pinctrl_pm_select_sleep_state(codec_dai->dev); @@ -2887,7 +2991,7 @@ int snd_soc_register_card(struct snd_soc_card *card) /* deactivate pins to sleep state */ list_for_each_entry(rtd, &card->rtd_list, list) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; int j; for (j = 0; j < rtd->num_codecs; j++) { @@ -2896,8 +3000,11 @@ int snd_soc_register_card(struct snd_soc_card *card) pinctrl_pm_select_sleep_state(codec_dai->dev); } - if (!cpu_dai->active) - pinctrl_pm_select_sleep_state(cpu_dai->dev); + for (j = 0; j < rtd->num_cpu_dai; j++) { + cpu_dai = rtd->cpu_dais[j]; + if (!cpu_dai->active) + pinctrl_pm_select_sleep_state(cpu_dai->dev); + } } return ret;