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ASoC: Intel: sof_cs42l42: support BT offload audio

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Add the capability to machine driver of creating DAI Link for BT
offload. Although BT offload always uses SSP2 port but we reserve the
flexibility to assign the port number in macro.

Signed-off-by: Brent Lu <brent.lu@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220708110030.658468-2-brent.lu@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Brent Lu 2022-07-08 19:00:29 +08:00 committed by Mark Brown
parent 050237e6b0
commit 1460b85daa
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 71 additions and 4 deletions
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75
sound/soc/intel/boards/sof_cs42l42.c
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@ -41,8 +41,13 @@
#define SOF_CS42L42_DAILINK_MASK (GENMASK(24, 10))
#define SOF_CS42L42_DAILINK(link1, link2, link3, link4, link5) \
((((link1) | ((link2) << 3) | ((link3) << 6) | ((link4) << 9) | ((link5) << 12)) << SOF_CS42L42_DAILINK_SHIFT) & SOF_CS42L42_DAILINK_MASK)
#define SOF_MAX98357A_SPEAKER_AMP_PRESENT BIT(25)
#define SOF_MAX98360A_SPEAKER_AMP_PRESENT BIT(26)
#define SOF_BT_OFFLOAD_PRESENT BIT(25)
#define SOF_CS42L42_SSP_BT_SHIFT 26
#define SOF_CS42L42_SSP_BT_MASK (GENMASK(28, 26))
#define SOF_CS42L42_SSP_BT(quirk) \
(((quirk) << SOF_CS42L42_SSP_BT_SHIFT) & SOF_CS42L42_SSP_BT_MASK)
#define SOF_MAX98357A_SPEAKER_AMP_PRESENT BIT(29)
#define SOF_MAX98360A_SPEAKER_AMP_PRESENT BIT(30)
enum {
LINK_NONE = 0,
@ -50,6 +55,7 @@ enum {
LINK_SPK = 2,
LINK_DMIC = 3,
LINK_HDMI = 4,
LINK_BT = 5,
};
static struct snd_soc_jack_pin jack_pins[] = {
@ -290,6 +296,13 @@ static struct snd_soc_dai_link_component dmic_component[] = {
}
};
static struct snd_soc_dai_link_component dummy_component[] = {
{
.name = "snd-soc-dummy",
.dai_name = "snd-soc-dummy-dai",
}
};
static int create_spk_amp_dai_links(struct device *dev,
struct snd_soc_dai_link *links,
struct snd_soc_dai_link_component *cpus,
@ -479,9 +492,50 @@ devm_err:
return -ENOMEM;
}
static int create_bt_offload_dai_links(struct device *dev,
struct snd_soc_dai_link *links,
struct snd_soc_dai_link_component *cpus,
int *id, int ssp_bt)
{
/* bt offload */
if (!(sof_cs42l42_quirk & SOF_BT_OFFLOAD_PRESENT))
return 0;
links[*id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-BT",
ssp_bt);
if (!links[*id].name)
goto devm_err;
links[*id].id = *id;
links[*id].codecs = dummy_component;
links[*id].num_codecs = ARRAY_SIZE(dummy_component);
links[*id].platforms = platform_component;
links[*id].num_platforms = ARRAY_SIZE(platform_component);
links[*id].dpcm_playback = 1;
links[*id].dpcm_capture = 1;
links[*id].no_pcm = 1;
links[*id].cpus = &cpus[*id];
links[*id].num_cpus = 1;
links[*id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
"SSP%d Pin",
ssp_bt);
if (!links[*id].cpus->dai_name)
goto devm_err;
(*id)++;
return 0;
devm_err:
return -ENOMEM;
}
static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
int ssp_codec,
int ssp_amp,
int ssp_bt,
int dmic_be_num,
int hdmi_num)
{
@ -534,6 +588,14 @@ static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
goto devm_err;
}
break;
case LINK_BT:
ret = create_bt_offload_dai_links(dev, links, cpus, &id, ssp_bt);
if (ret < 0) {
dev_err(dev, "fail to create bt offload dai links, ret %d\n",
ret);
goto devm_err;
}
break;
case LINK_NONE:
/* caught here if it's not used as terminator in macro */
default:
@ -555,7 +617,7 @@ static int sof_audio_probe(struct platform_device *pdev)
struct snd_soc_acpi_mach *mach;
struct sof_card_private *ctx;
int dmic_be_num, hdmi_num;
int ret, ssp_amp, ssp_codec;
int ret, ssp_bt, ssp_amp, ssp_codec;
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
@ -580,6 +642,9 @@ static int sof_audio_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "sof_cs42l42_quirk = %lx\n", sof_cs42l42_quirk);
ssp_bt = (sof_cs42l42_quirk & SOF_CS42L42_SSP_BT_MASK) >>
SOF_CS42L42_SSP_BT_SHIFT;
ssp_amp = (sof_cs42l42_quirk & SOF_CS42L42_SSP_AMP_MASK) >>
SOF_CS42L42_SSP_AMP_SHIFT;
@ -590,9 +655,11 @@ static int sof_audio_probe(struct platform_device *pdev)
if (sof_cs42l42_quirk & SOF_SPEAKER_AMP_PRESENT)
sof_audio_card_cs42l42.num_links++;
if (sof_cs42l42_quirk & SOF_BT_OFFLOAD_PRESENT)
sof_audio_card_cs42l42.num_links++;
dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, ssp_amp,
dmic_be_num, hdmi_num);
ssp_bt, dmic_be_num, hdmi_num);
if (!dai_links)
return -ENOMEM;