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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 8FA8DC2D0BF for ; Fri, 13 Dec 2019 05:04:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6CD192465A for ; Fri, 13 Dec 2019 05:04:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732079AbfLMFEp (ORCPT ); Fri, 13 Dec 2019 00:04:45 -0500 Received: from mga04.intel.com ([192.55.52.120]:58713 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732064AbfLMFEl (ORCPT ); Fri, 13 Dec 2019 00:04:41 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Dec 2019 21:04:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,308,1571727600"; d="scan'208";a="208340767" Received: from vbagrodi-mobl2.amr.corp.intel.com (HELO pbossart-mobl3.amr.corp.intel.com) ([10.251.130.70]) by orsmga008.jf.intel.com with ESMTP; 12 Dec 2019 21:04:39 -0800 From: Pierre-Louis Bossart To: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org, tiwai@suse.de, broonie@kernel.org, vkoul@kernel.org, gregkh@linuxfoundation.org, jank@cadence.com, srinivas.kandagatla@linaro.org, slawomir.blauciak@intel.com, Bard liao , Rander Wang , Ranjani Sridharan , Pierre-Louis Bossart , Sanyog Kale Subject: [PATCH v4 12/15] soundwire: intel: add trigger support in sdw dai driver Date: Thu, 12 Dec 2019 23:04:06 -0600 Message-Id: <20191213050409.12776-13-pierre-louis.bossart@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191213050409.12776-1-pierre-louis.bossart@linux.intel.com> References: <20191213050409.12776-1-pierre-louis.bossart@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rander Wang The existing code does not expose a trigger callback, which is very much required for streaming. The SoundWire stream is enabled and disabled in trigger function. Signed-off-by: Rander Wang Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/intel.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 510b7f51826b..b5f6e2c6a85b 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -713,6 +713,43 @@ static int intel_prepare(struct snd_pcm_substream *substream, return sdw_prepare_stream(dma->stream); } +static int intel_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct sdw_cdns_dma_data *dma; + int ret; + + dma = snd_soc_dai_get_dma_data(dai, substream); + if (!dma) { + dev_err(dai->dev, "failed to get dma data in %s", __func__); + return -EIO; + } + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + ret = sdw_enable_stream(dma->stream); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + ret = sdw_disable_stream(dma->stream); + break; + + default: + ret = -EINVAL; + break; + } + + if (ret) + dev_err(dai->dev, + "%s trigger %d failed: %d", + __func__, cmd, ret); + return ret; +} + static int intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -760,6 +797,7 @@ static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai, static const struct snd_soc_dai_ops intel_pcm_dai_ops = { .hw_params = intel_hw_params, .prepare = intel_prepare, + .trigger = intel_trigger, .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pcm_set_sdw_stream, @@ -768,6 +806,7 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = { static const struct snd_soc_dai_ops intel_pdm_dai_ops = { .hw_params = intel_hw_params, .prepare = intel_prepare, + .trigger = intel_trigger, .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pdm_set_sdw_stream, -- 2.20.1