From: Mateusz Gorski <[email protected]> commit 2d744ecf2b98405723a2138a547e5c75009bc4e5 upstream.
Automatically choose DMIC pipeline format configuration depending on information included in NHLT. Change the access rights of appropriate kcontrols to read-only in order to prevent user interference. Signed-off-by: Mateusz Gorski <[email protected]> Reviewed-by: Cezary Rojewski <[email protected]> Reviewed-by: Pierre-Louis Bossart <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]> Cc: <[email protected]> # 5.4.x Signed-off-by: Greg Kroah-Hartman <[email protected]> --- include/uapi/sound/skl-tplg-interface.h | 1 sound/soc/intel/skylake/skl-topology.c | 64 ++++++++++++++++++++++++++++++-- 2 files changed, 62 insertions(+), 3 deletions(-) --- a/include/uapi/sound/skl-tplg-interface.h +++ b/include/uapi/sound/skl-tplg-interface.h @@ -19,6 +19,7 @@ #define SKL_CONTROL_TYPE_BYTE_TLV 0x100 #define SKL_CONTROL_TYPE_MIC_SELECT 0x102 #define SKL_CONTROL_TYPE_MULTI_IO_SELECT 0x103 +#define SKL_CONTROL_TYPE_MULTI_IO_SELECT_DMIC 0x104 #define HDA_SST_CFG_MAX 900 /* size of copier cfg*/ #define MAX_IN_QUEUE 8 --- a/sound/soc/intel/skylake/skl-topology.c +++ b/sound/soc/intel/skylake/skl-topology.c @@ -1405,6 +1405,18 @@ static int skl_tplg_multi_config_set(str return skl_tplg_multi_config_set_get(kcontrol, ucontrol, true); } +static int skl_tplg_multi_config_get_dmic(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return skl_tplg_multi_config_set_get(kcontrol, ucontrol, false); +} + +static int skl_tplg_multi_config_set_dmic(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + return skl_tplg_multi_config_set_get(kcontrol, ucontrol, true); +} + static int skl_tplg_tlv_control_get(struct snd_kcontrol *kcontrol, unsigned int __user *data, unsigned int size) { @@ -1949,6 +1961,11 @@ static const struct snd_soc_tplg_kcontro .get = skl_tplg_multi_config_get, .put = skl_tplg_multi_config_set, }, + { + .id = SKL_CONTROL_TYPE_MULTI_IO_SELECT_DMIC, + .get = skl_tplg_multi_config_get_dmic, + .put = skl_tplg_multi_config_set_dmic, + } }; static int skl_tplg_fill_pipe_cfg(struct device *dev, @@ -3109,12 +3126,21 @@ static int skl_tplg_control_load(struct case SND_SOC_TPLG_CTL_ENUM: tplg_ec = container_of(hdr, struct snd_soc_tplg_enum_control, hdr); - if (kctl->access & SNDRV_CTL_ELEM_ACCESS_READWRITE) { + if (kctl->access & SNDRV_CTL_ELEM_ACCESS_READ) { se = (struct soc_enum *)kctl->private_value; if (tplg_ec->priv.size) - return skl_init_enum_data(bus->dev, se, - tplg_ec); + skl_init_enum_data(bus->dev, se, tplg_ec); } + + /* + * now that the control initializations are done, remove + * write permission for the DMIC configuration enums to + * avoid conflicts between NHLT settings and user interaction + */ + + if (hdr->ops.get == SKL_CONTROL_TYPE_MULTI_IO_SELECT_DMIC) + kctl->access = SNDRV_CTL_ELEM_ACCESS_READ; + break; default: @@ -3584,6 +3610,37 @@ static int skl_manifest_load(struct snd_ return 0; } +static void skl_tplg_complete(struct snd_soc_component *component) +{ + struct snd_soc_dobj *dobj; + struct snd_soc_acpi_mach *mach = + dev_get_platdata(component->card->dev); + int i; + + list_for_each_entry(dobj, &component->dobj_list, list) { + struct snd_kcontrol *kcontrol = dobj->control.kcontrol; + struct soc_enum *se = + (struct soc_enum *)kcontrol->private_value; + char **texts = dobj->control.dtexts; + char chan_text[4]; + + if (dobj->type != SND_SOC_DOBJ_ENUM || + dobj->control.kcontrol->put != + skl_tplg_multi_config_set_dmic) + continue; + sprintf(chan_text, "c%d", mach->mach_params.dmic_num); + + for (i = 0; i < se->items; i++) { + struct snd_ctl_elem_value val; + + if (strstr(texts[i], chan_text)) { + val.value.enumerated.item[0] = i; + kcontrol->put(kcontrol, &val); + } + } + } +} + static struct snd_soc_tplg_ops skl_tplg_ops = { .widget_load = skl_tplg_widget_load, .control_load = skl_tplg_control_load, @@ -3593,6 +3650,7 @@ static struct snd_soc_tplg_ops skl_tplg_ .io_ops_count = ARRAY_SIZE(skl_tplg_kcontrol_ops), .manifest = skl_manifest_load, .dai_load = skl_dai_load, + .complete = skl_tplg_complete, }; /*
