From 880924cad12e96092364467cb7b3ad7a689bec55 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Thu, 21 Apr 2022 15:32:00 -0500
Subject: [PATCH] ASoC: SOF: Intel: add helper for link DMA cleanups
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Git-commit: 880924cad12e96092364467cb7b3ad7a689bec55
Patch-mainline: v5.19-rc1
References: jsc#PED-850
We do the same operations from different places, add a helper to
enforce consistency and make the programming sequences clearer.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220421203201.1550328-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/sof/intel/hda-dai.c | 112 ++++++++++++++--------------------
1 file changed, 45 insertions(+), 67 deletions(-)
diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c
index 644f75081edd..53600c6c2911 100644
--- a/sound/soc/sof/intel/hda-dai.c
+++ b/sound/soc/sof/intel/hda-dai.c
@@ -128,6 +128,40 @@ hda_link_stream_assign(struct hdac_bus *bus,
return res;
}
+static int hda_link_dma_cleanup(struct snd_pcm_substream *substream,
+ struct hdac_stream *hstream,
+ struct snd_soc_dai *cpu_dai,
+ struct snd_soc_dai *codec_dai,
+ bool trigger_suspend_stop)
+{
+ struct hdac_ext_stream *hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
+ struct hdac_bus *bus = hstream->bus;
+ struct sof_intel_hda_stream *hda_stream;
+ struct hdac_ext_link *link;
+ int stream_tag;
+
+ link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
+ if (!link)
+ return -EINVAL;
+
+ if (trigger_suspend_stop)
+ snd_hdac_ext_link_stream_clear(hext_stream);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ stream_tag = hdac_stream(hext_stream)->stream_tag;
+ snd_hdac_ext_link_clear_stream_id(link, stream_tag);
+ }
+ snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
+ snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
+ hext_stream->link_prepared = 0;
+
+ /* free the host DMA channel reserved by hostless streams */
+ hda_stream = hstream_to_sof_hda_stream(hext_stream);
+ hda_stream->host_reserved = 0;
+
+ return 0;
+}
+
static int hda_link_dma_params(struct hdac_ext_stream *hext_stream,
struct hda_pipe_params *params)
{
@@ -221,13 +255,7 @@ static int hda_link_dma_trigger(struct snd_pcm_substream *substream, int cmd)
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct hdac_ext_stream *hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
- struct hdac_ext_link *link;
- struct hdac_bus *bus = hstream->bus;
- int stream_tag;
-
- link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
- if (!link)
- return -EINVAL;
+ int ret;
dev_dbg(cpu_dai->dev, "%s: cmd=%d\n", __func__, cmd);
if (!hext_stream)
@@ -240,15 +268,9 @@ static int hda_link_dma_trigger(struct snd_pcm_substream *substream, int cmd)
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
- snd_hdac_ext_link_stream_clear(hext_stream);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- stream_tag = hdac_stream(hext_stream)->stream_tag;
- snd_hdac_ext_link_clear_stream_id(link, stream_tag);
- }
- snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
- snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
- hext_stream->link_prepared = 0;
+ ret = hda_link_dma_cleanup(substream, hstream, cpu_dai, codec_dai, true);
+ if (ret < 0)
+ return ret;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
@@ -267,36 +289,13 @@ static int hda_link_dma_hw_free(struct snd_pcm_substream *substream)
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
- struct sof_intel_hda_stream *hda_stream;
- struct hdac_bus *bus = hstream->bus;
struct hdac_ext_stream *hext_stream;
- struct hdac_ext_link *link;
- int stream_tag;
hext_stream = snd_soc_dai_get_dma_data(cpu_dai, substream);
- if (!hext_stream) {
- dev_dbg(cpu_dai->dev, "%s: hext_stream is not assigned\n", __func__);
- return -EINVAL;
- }
-
- link = snd_hdac_ext_bus_get_link(bus, codec_dai->component->name);
- if (!link)
- return -EINVAL;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- stream_tag = hdac_stream(hext_stream)->stream_tag;
- snd_hdac_ext_link_clear_stream_id(link, stream_tag);
- }
-
- snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
- snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
- hext_stream->link_prepared = 0;
-
- /* free the host DMA channel reserved by hostless streams */
- hda_stream = hstream_to_sof_hda_stream(hext_stream);
- hda_stream->host_reserved = 0;
+ if (!hext_stream)
+ return 0;
- return 0;
+ return hda_link_dma_cleanup(substream, hstream, cpu_dai, codec_dai, false);
}
static int hda_dai_widget_update(struct snd_soc_dapm_widget *w,
@@ -457,15 +456,11 @@ static int hda_dai_suspend(struct hdac_bus *bus)
{
struct snd_soc_pcm_runtime *rtd;
struct hdac_ext_stream *hext_stream;
- struct hdac_ext_link *link;
struct hdac_stream *s;
- const char *name;
- int stream_tag;
int ret;
/* set internal flag for BE */
list_for_each_entry(s, &bus->stream_list, list) {
- struct sof_intel_hda_stream *hda_stream;
hext_stream = stream_to_hdac_ext_stream(s);
@@ -482,34 +477,17 @@ static int hda_dai_suspend(struct hdac_bus *bus)
rtd = asoc_substream_to_rtd(hext_stream->link_substream);
cpu_dai = asoc_rtd_to_cpu(rtd, 0);
codec_dai = asoc_rtd_to_codec(rtd, 0);
- name = codec_dai->component->name;
- link = snd_hdac_ext_bus_get_link(bus, name);
- if (!link)
- return -EINVAL;
- /*
- * we don't need to call snd_hdac_ext_link_stream_clear(he_stream)
- * since we can only reach this case in the pause_push state, and
- * the TRIGGER_PAUSE_PUSH already stops the DMA
- */
- if (hdac_stream(hext_stream)->direction == SNDRV_PCM_STREAM_PLAYBACK) {
- stream_tag = hdac_stream(hext_stream)->stream_tag;
- snd_hdac_ext_link_clear_stream_id(link, stream_tag);
- }
- snd_soc_dai_set_dma_data(cpu_dai, hext_stream->link_substream, NULL);
- snd_hdac_ext_stream_release(hext_stream, HDAC_EXT_STREAM_TYPE_LINK);
- hext_stream->link_prepared = 0;
-
- /* free the host DMA channel reserved by hostless streams */
- hda_stream = hstream_to_sof_hda_stream(hext_stream);
- hda_stream->host_reserved = 0;
+ ret = hda_link_dma_cleanup(hext_stream->link_substream, s,
+ cpu_dai, codec_dai, false);
+ if (ret < 0)
+ return ret;
/* for consistency with TRIGGER_SUSPEND we free DAI resources */
ret = hda_dai_hw_free_ipc(hdac_stream(hext_stream)->direction, cpu_dai);
if (ret < 0)
return ret;
}
-
}
return 0;
--
2.35.3