From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Koul Subject: [PATCH v6 08/13] ASoC: Add SoundWire stream programming interface Date: Thu, 26 Apr 2018 18:50:04 +0530 Message-ID: <1524748809-21860-9-git-send-email-vkoul@kernel.org> References: <1524748809-21860-1-git-send-email-vkoul@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by alsa0.perex.cz (Postfix) with ESMTP id 50EBC26782F for ; Thu, 26 Apr 2018 15:16:02 +0200 (CEST) In-Reply-To: <1524748809-21860-1-git-send-email-vkoul@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Greg KH Cc: ALSA , tiwai@suse.de, Pierre-Louis Bossart , liam.r.girdwood@linux.intel.com, patches.audio@intel.com, Vinod Koul , broonie@kernel.org, Shreyas NC List-Id: alsa-devel@alsa-project.org From: Shreyas NC SoundWire stream needs to be propagated to all the DAIs(cpu, codec). So, add a snd_soc_dai_set_sdw_stream() API for the same. Signed-off-by: Shreyas NC Signed-off-by: Vinod Koul --- include/sound/soc-dai.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 58acd00cae19..03ae58c13b49 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -168,6 +168,8 @@ struct snd_soc_dai_ops { unsigned int rx_num, unsigned int *rx_slot); int (*set_tristate)(struct snd_soc_dai *dai, int tristate); + int (*set_sdw_stream)(struct snd_soc_dai *dai, + void *stream, int direction); /* * DAI digital mute - optional. * Called by soc-core to minimise any pops. @@ -359,4 +361,25 @@ static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai) return dev_get_drvdata(dai->dev); } +/** + * snd_soc_dai_set_sdw_stream() - Configures a DAI for SDW stream operation + * @dai: DAI + * @stream: STREAM + * @direction: Stream direction(Playback/Capture) + * SoundWire subsystem doesn't have a notion of direction and we reuse + * the ASoC stream direction to configure sink/source ports. + * Playback maps to source ports and Capture for sink ports. + * + * This should be invoked with NULL to clear the stream set previously. + * Returns 0 on success, a negative error code otherwise. + */ +static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai, + void *stream, int direction) +{ + if (dai->driver->ops->set_sdw_stream) + return dai->driver->ops->set_sdw_stream(dai, stream, direction); + else + return -ENOTSUPP; +} + #endif -- 2.7.4