On 3/24/21 12:52 PM, vamshi.krishna.gopal@xxxxxxxxx wrote:
From: Mac Chiang <mac.chiang@xxxxxxxxx>
create dai link in kbl_da7219_max98357a driver for wake on voice
functionality.
changes picked from broonie's tree
commit 0c7941a63a0f
("ASoC: Intel: Skylake: Use refcap device for mono recording")
commit 2154be362c90
("ASoc: Intel: boards: Add WOV as sink for nau88l25_ssm4567 machine")
Signed-off-by: Mac Chiang <mac.chiang@xxxxxxxxx>
Signed-off-by: Vamshi Krishna Gopal <vamshi.krishna.gopal@xxxxxxxxx>
Tested-by: Kaiyen Chang <kaiyen.chang@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Tested-by: luke yang <luke_yang@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Tested-by: Grace Kao <grace.kao@xxxxxxxxx>
Tested-by: Kaiyen Chang <kaiyen.chang@xxxxxxxxx>
Reviewed-by: Cheng-Yi Chiang <cychiang@xxxxxxxxxxxx>
---
sound/soc/intel/boards/kbl_da7219_max98357a.c | 35 +++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/sound/soc/intel/boards/kbl_da7219_max98357a.c b/sound/soc/intel/boards/kbl_da7219_max98357a.c
index 1d6b2855874d..c9d83eebf4a8 100644
--- a/sound/soc/intel/boards/kbl_da7219_max98357a.c
+++ b/sound/soc/intel/boards/kbl_da7219_max98357a.c
@@ -44,6 +44,7 @@ struct kbl_codec_private {
enum {
KBL_DPCM_AUDIO_PB = 0,
KBL_DPCM_AUDIO_CP,
+ KBL_DPCM_AUDIO_REF_CP,
KBL_DPCM_AUDIO_DMIC_CP,
KBL_DPCM_AUDIO_HDMI1_PB,
KBL_DPCM_AUDIO_HDMI2_PB,
@@ -335,12 +336,36 @@ static struct snd_soc_ops kabylake_dmic_ops = {
.startup = kabylake_dmic_startup,
};
+static const struct snd_pcm_hw_constraint_list constraints_refcap = {
+ .count = ARRAY_SIZE(ch_mono),
+ .list = ch_mono,
+};
+
+static int kabylake_refcap_startup(struct snd_pcm_substream *substream)
+{
+ substream->runtime->hw.channels_max = 1;
+ snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ &constraints_refcap);
+
+ return snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ &constraints_16000);
+}
+
+static struct snd_soc_ops skylaye_refcap_ops = {
+ .startup = kabylake_refcap_startup,
+};
+
SND_SOC_DAILINK_DEF(dummy,
DAILINK_COMP_ARRAY(COMP_DUMMY()));
SND_SOC_DAILINK_DEF(system,
DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
+SND_SOC_DAILINK_DEF(reference,
+ DAILINK_COMP_ARRAY(COMP_CPU("Reference Pin")));
+
SND_SOC_DAILINK_DEF(dmic,
DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin")));
@@ -415,6 +440,16 @@ static struct snd_soc_dai_link kabylake_dais[] = {
.ops = &kabylake_da7219_fe_ops,
SND_SOC_DAILINK_REG(system, dummy, platform),
},
+ [KBL_DPCM_AUDIO_REF_CP] = {
+ .name = "Kbl Audio Reference cap",
+ .stream_name = "Wake on Voice",
Does anyone have a clear definition of what "REF_CP" and "reference"
mean? it's not echo reference since there is a separate entry for this,
so not sure what the term means.
Half of the SKL/KBL drivers seem to use this FE for "Wake on Voice" and
the other half use it for 'Refcap', this doesn't look very consistent.
+ .init = NULL,
+ .dpcm_capture = 1,
+ .nonatomic = 1,
+ .dynamic = 1,
+ .ops = &skylaye_refcap_ops,
+ SND_SOC_DAILINK_REG(reference, dummy, platform),
+ },
[KBL_DPCM_AUDIO_DMIC_CP] = {
.name = "Kbl Audio DMIC cap",
.stream_name = "dmiccap",
