[alsa-devel] [PATCH v3 2/3] ASoC: Intel: Skylake: Add enum control for mic selection
Subhransu S. Prusty
subhransu.s.prusty at intel.com
Wed May 31 07:00:25 CEST 2017
From: Dharageswari R <dharageswari.r at intel.com>
User may prefer to select data from particular mics. A mic-select module
in DSP allows this selection.
Create possible enum controls to allow user to select a combination of
mics to capture data from. Based on the user selection, parameters are
generated and passed to mic-select module during init.
Signed-off-by: Dharageswari R <dharageswari.r at intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
sound/soc/intel/skylake/skl-topology.c | 159 +++++++++++++++++++++++++++
sound/soc/intel/skylake/skl-topology.h | 20 ++++
sound/soc/intel/skylake/skl-tplg-interface.h | 1 +
3 files changed, 180 insertions(+)
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index b687ae455a61..0a6e249a8877 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -36,6 +36,19 @@
#define SKL_IN_DIR_BIT_MASK BIT(0)
#define SKL_PIN_COUNT_MASK GENMASK(7, 4)
+static const int mic_mono_list[] = {
+0, 1, 2, 3,
+};
+static const int mic_stereo_list[][SKL_CH_STEREO] = {
+{0, 1}, {0, 2}, {0, 3}, {1, 2}, {1, 3}, {2, 3},
+};
+static const int mic_trio_list[][SKL_CH_TRIO] = {
+{0, 1, 2}, {0, 1, 3}, {0, 2, 3}, {1, 2, 3},
+};
+static const int mic_quatro_list[][SKL_CH_QUATRO] = {
+{0, 1, 2, 3},
+};
+
void skl_tplg_d0i3_get(struct skl *skl, enum d0i3_capability caps)
{
struct skl_d0i3_data *d0i3 = &skl->skl_sst->d0i3;
@@ -1314,6 +1327,111 @@ static int skl_tplg_tlv_control_set(struct snd_kcontrol *kcontrol,
return 0;
}
+static int skl_tplg_mic_control_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
+ struct skl_module_cfg *mconfig = w->priv;
+ struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+ u32 ch_type = *((u32 *)ec->dobj.private);
+
+ if (mconfig->dmic_ch_type == ch_type)
+ ucontrol->value.enumerated.item[0] =
+ mconfig->dmic_ch_combo_index;
+ else
+ ucontrol->value.enumerated.item[0] = 0;
+
+ return 0;
+}
+
+static int skl_fill_mic_sel_params(struct skl_module_cfg *mconfig,
+ struct skl_mic_sel_config *mic_cfg, struct device *dev)
+{
+ struct skl_specific_cfg *sp_cfg = &mconfig->formats_config;
+
+ sp_cfg->caps_size = sizeof(struct skl_mic_sel_config);
+ sp_cfg->set_params = SKL_PARAM_SET;
+ sp_cfg->param_id = 0x00;
+ if (!sp_cfg->caps) {
+ sp_cfg->caps = devm_kzalloc(dev, sp_cfg->caps_size, GFP_KERNEL);
+ if (!sp_cfg->caps)
+ return -ENOMEM;
+ }
+
+ mic_cfg->mic_switch = SKL_MIC_SEL_SWITCH;
+ mic_cfg->flags = 0;
+ memcpy(sp_cfg->caps, mic_cfg, sp_cfg->caps_size);
+
+ return 0;
+}
+
+static int skl_tplg_mic_control_set(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
+ struct skl_module_cfg *mconfig = w->priv;
+ struct skl_mic_sel_config mic_cfg = {0};
+ struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+ u32 ch_type = *((u32 *)ec->dobj.private);
+ const int *list;
+ u8 in_ch, out_ch, index;
+
+ mconfig->dmic_ch_type = ch_type;
+ mconfig->dmic_ch_combo_index = ucontrol->value.enumerated.item[0];
+
+ /* enum control index 0 is INVALID, so no channels to be set */
+ if (mconfig->dmic_ch_combo_index == 0)
+ return 0;
+
+ /* No valid channel selection map for index 0, so offset by 1 */
+ index = mconfig->dmic_ch_combo_index - 1;
+
+ switch (ch_type) {
+ case SKL_CH_MONO:
+ if (mconfig->dmic_ch_combo_index > ARRAY_SIZE(mic_mono_list))
+ return -EINVAL;
+
+ list = &mic_mono_list[index];
+ break;
+
+ case SKL_CH_STEREO:
+ if (mconfig->dmic_ch_combo_index > ARRAY_SIZE(mic_stereo_list))
+ return -EINVAL;
+
+ list = mic_stereo_list[index];
+ break;
+
+ case SKL_CH_TRIO:
+ if (mconfig->dmic_ch_combo_index > ARRAY_SIZE(mic_trio_list))
+ return -EINVAL;
+
+ list = mic_trio_list[index];
+ break;
+
+ case SKL_CH_QUATRO:
+ if (mconfig->dmic_ch_combo_index > ARRAY_SIZE(mic_quatro_list))
+ return -EINVAL;
+
+ list = mic_quatro_list[index];
+ break;
+
+ default:
+ dev_err(w->dapm->dev,
+ "Invalid channel %d for mic_select module\n",
+ ch_type);
+ return -EINVAL;
+
+ }
+
+ /* channel type enum map to number of chanels for that type */
+ for (out_ch = 0; out_ch < ch_type; out_ch++) {
+ in_ch = list[out_ch];
+ mic_cfg.blob[out_ch][in_ch] = SKL_DEFAULT_MIC_SEL_GAIN;
+ }
+
+ return skl_fill_mic_sel_params(mconfig, &mic_cfg, w->dapm->dev);
+}
+
/*
* Fill the dma id for host and link. In case of passthrough
* pipeline, this will both host and link in the same
@@ -1666,6 +1784,14 @@ int skl_tplg_be_update_params(struct snd_soc_dai *dai,
skl_tplg_tlv_control_set},
};
+static const struct snd_soc_tplg_kcontrol_ops skl_tplg_kcontrol_ops[] = {
+ {
+ .id = SKL_CONTROL_TYPE_MIC_SELECT,
+ .get = skl_tplg_mic_control_get,
+ .put = skl_tplg_mic_control_set,
+ },
+};
+
static int skl_tplg_fill_pipe_tkn(struct device *dev,
struct skl_pipe *pipe, u32 tkn,
u32 tkn_val)
@@ -2390,14 +2516,34 @@ static int skl_init_algo_data(struct device *dev, struct soc_bytes_ext *be,
return 0;
}
+static int skl_init_enum_data(struct device *dev, struct soc_enum *se,
+ struct snd_soc_tplg_enum_control *ec)
+{
+
+ void *data;
+
+ if (ec->priv.size) {
+ data = devm_kzalloc(dev, sizeof(ec->priv.size), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ memcpy(data, ec->priv.data, ec->priv.size);
+ se->dobj.private = data;
+ }
+
+ return 0;
+
+}
+
static int skl_tplg_control_load(struct snd_soc_component *cmpnt,
struct snd_kcontrol_new *kctl,
struct snd_soc_tplg_ctl_hdr *hdr)
{
struct soc_bytes_ext *sb;
struct snd_soc_tplg_bytes_control *tplg_bc;
+ struct snd_soc_tplg_enum_control *tplg_ec;
struct hdac_ext_bus *ebus = snd_soc_component_get_drvdata(cmpnt);
struct hdac_bus *bus = ebus_to_hbus(ebus);
+ struct soc_enum *se;
switch (hdr->ops.info) {
case SND_SOC_TPLG_CTL_BYTES:
@@ -2411,6 +2557,17 @@ static int skl_tplg_control_load(struct snd_soc_component *cmpnt,
}
break;
+ 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) {
+ se = (struct soc_enum *)kctl->private_value;
+ if (tplg_ec->priv.size)
+ return skl_init_enum_data(bus->dev, se,
+ tplg_ec);
+ }
+ break;
+
default:
dev_warn(bus->dev, "Control load not supported %d:%d:%d\n",
hdr->ops.get, hdr->ops.put, hdr->ops.info);
@@ -2639,6 +2796,8 @@ static int skl_manifest_load(struct snd_soc_component *cmpnt,
.control_load = skl_tplg_control_load,
.bytes_ext_ops = skl_tlv_ops,
.bytes_ext_ops_count = ARRAY_SIZE(skl_tlv_ops),
+ .io_ops = skl_tplg_kcontrol_ops,
+ .io_ops_count = ARRAY_SIZE(skl_tplg_kcontrol_ops),
.manifest = skl_manifest_load,
};
diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h
index cc64d6bdb4f6..3f51a0a00093 100644
--- a/sound/soc/intel/skylake/skl-topology.h
+++ b/sound/soc/intel/skylake/skl-topology.h
@@ -39,6 +39,11 @@
#define MODULE_MAX_IN_PINS 8
#define MODULE_MAX_OUT_PINS 8
+#define SKL_MIC_CH_SUPPORT 4
+#define SKL_MIC_MAX_CH_SUPPORT 8
+#define SKL_DEFAULT_MIC_SEL_GAIN 0x3FF
+#define SKL_MIC_SEL_SWITCH 0x3
+
enum skl_channel_index {
SKL_CHANNEL_LEFT = 0,
SKL_CHANNEL_RIGHT = 1,
@@ -309,6 +314,8 @@ struct skl_module_cfg {
u8 dev_type;
u8 dma_id;
u8 time_slot;
+ u8 dmic_ch_combo_index;
+ u32 dmic_ch_type;
u32 params_fixup;
u32 converter;
u32 vbus_id;
@@ -342,6 +349,19 @@ struct skl_module_deferred_bind {
struct list_head node;
};
+struct skl_mic_sel_config {
+ u16 mic_switch;
+ u16 flags;
+ u16 blob[SKL_MIC_MAX_CH_SUPPORT][SKL_MIC_MAX_CH_SUPPORT];
+} __packed;
+
+enum skl_channel {
+ SKL_CH_MONO = 1,
+ SKL_CH_STEREO = 2,
+ SKL_CH_TRIO = 3,
+ SKL_CH_QUATRO = 4,
+};
+
static inline struct skl *get_skl_ctx(struct device *dev)
{
struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
diff --git a/sound/soc/intel/skylake/skl-tplg-interface.h b/sound/soc/intel/skylake/skl-tplg-interface.h
index c22517bd2161..f8d1749a2e0c 100644
--- a/sound/soc/intel/skylake/skl-tplg-interface.h
+++ b/sound/soc/intel/skylake/skl-tplg-interface.h
@@ -24,6 +24,7 @@
* SST types start at higher to avoid any overlapping in future
*/
#define SKL_CONTROL_TYPE_BYTE_TLV 0x100
+#define SKL_CONTROL_TYPE_MIC_SELECT 0x102
#define HDA_SST_CFG_MAX 900 /* size of copier cfg*/
#define MAX_IN_QUEUE 8
--
1.9.1
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