From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: alsa-devel@alsa-project.org
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
tiwai@suse.de, gregkh@linuxfoundation.org,
linux-kernel@vger.kernel.org,
Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
vkoul@kernel.org, broonie@kernel.org,
srinivas.kandagatla@linaro.org, jank@cadence.com,
slawomir.blauciak@intel.com,
Sanyog Kale <sanyog.r.kale@intel.com>,
Bard liao <yung-chuan.liao@linux.intel.com>,
Rander Wang <rander.wang@linux.intel.com>
Subject: [alsa-devel] [PATCH v2 12/14] soundwire: intel: add sdw_stream_setup helper for .startup callback
Date: Wed, 6 Nov 2019 13:13:56 -0600 [thread overview]
Message-ID: <20191106191358.5712-13-pierre-louis.bossart@linux.intel.com> (raw)
In-Reply-To: <20191106191358.5712-1-pierre-louis.bossart@linux.intel.com>
From: Rander Wang <rander.wang@linux.intel.com>
The sdw stream is allocated and stored in dai to share the sdw runtime
information.
Signed-off-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
drivers/soundwire/intel.c | 65 +++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 862dde9a9b86..af24fa048add 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -615,6 +615,69 @@ static int intel_post_bank_switch(struct sdw_bus *bus)
* DAI routines
*/
+static int sdw_stream_setup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct sdw_stream_runtime *sdw_stream = NULL;
+ char *name;
+ int i, ret;
+
+ name = kzalloc(32, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snprintf(name, 32, "%s-Playback", dai->name);
+ else
+ snprintf(name, 32, "%s-Capture", dai->name);
+
+ sdw_stream = sdw_alloc_stream(name);
+ if (!sdw_stream) {
+ dev_err(dai->dev, "alloc stream failed for DAI %s", dai->name);
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ /* Set stream pointer on CPU DAI */
+ ret = snd_soc_dai_set_sdw_stream(dai, sdw_stream, substream->stream);
+ if (ret < 0) {
+ dev_err(dai->dev, "failed to set stream pointer on cpu dai %s",
+ dai->name);
+ goto release_stream;
+ }
+
+ /* Set stream pointer on all CODEC DAIs */
+ for (i = 0; i < rtd->num_codecs; i++) {
+ ret = snd_soc_dai_set_sdw_stream(rtd->codec_dais[i], sdw_stream,
+ substream->stream);
+ if (ret < 0) {
+ dev_err(dai->dev, "failed to set stream pointer on codec dai %s",
+ rtd->codec_dais[i]->name);
+ goto release_stream;
+ }
+ }
+
+ return 0;
+
+release_stream:
+ sdw_release_stream(sdw_stream);
+error:
+ kfree(name);
+ return ret;
+}
+
+static int intel_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ /*
+ * TODO: add pm_runtime support here, the startup callback
+ * will make sure the IP is 'active'
+ */
+
+ return sdw_stream_setup(substream, dai);
+}
+
static int intel_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -794,6 +857,7 @@ static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai,
}
static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
+ .startup = intel_startup,
.hw_params = intel_hw_params,
.prepare = intel_prepare,
.trigger = intel_trigger,
@@ -803,6 +867,7 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
};
static const struct snd_soc_dai_ops intel_pdm_dai_ops = {
+ .startup = intel_startup,
.hw_params = intel_hw_params,
.prepare = intel_prepare,
.trigger = intel_trigger,
--
2.20.1
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next prev parent reply other threads:[~2019-11-06 19:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-06 19:13 [alsa-devel] [PATCH v2 00/14] soundwire: intel: implement new ASoC interfaces Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 01/14] soundwire: renames to prepare support for master drivers/devices Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 02/14] soundwire: rename dev_to_sdw_dev macro Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 03/14] soundwire: rename drv_to_sdw_slave_driver macro Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 04/14] soundwire: bus_type: rename sdw_drv_ to sdw_slave_drv Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 05/14] soundwire: intel: rename res field as link_res Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 06/14] soundwire: add support for sdw_slave_type Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 07/14] soundwire: add initial definitions for sdw_master_device Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 08/14] soundwire: intel: remove platform devices and provide new interface Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 09/14] soundwire: add device driver to sdw_md_driver Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 10/14] soundwire: intel: add prepare support in sdw dai driver Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 11/14] soundwire: intel: add trigger " Pierre-Louis Bossart
2019-11-06 19:13 ` Pierre-Louis Bossart [this message]
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 13/14] soundwire: intel: free all resources on hw_free() Pierre-Louis Bossart
2019-11-06 19:13 ` [alsa-devel] [PATCH v2 14/14] soundwire: intel_init: add implementation of sdw_intel_enable_irq() Pierre-Louis Bossart
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