asoc: msmnile: add configuration for adaptive bitrate

Add hostless front end DAI to trigger backend
configuration of BT backend dai required for
configuring BT ABR statistics. Add mixer ctrls
to independently configure TX and RX sample
rates to allow BT RX and TX backends.

Change-Id: Iba274253bca510e3899658306787e2ba15324bf2
Signed-off-by: Aniket Kumar Lata <[email protected]>

asoc/sm8150.c

@@ -409,6 +409,12 @@ static char const *slim_sample_rate_text[] = {"KHZ_8", "KHZ_16",
 static char const *bt_sample_rate_text[] = {"KHZ_8", "KHZ_16",
 					"KHZ_44P1", "KHZ_48",
 					"KHZ_88P2", "KHZ_96"};
+static char const *bt_sample_rate_rx_text[] = {"KHZ_8", "KHZ_16",
+					"KHZ_44P1", "KHZ_48",
+					"KHZ_88P2", "KHZ_96"};
+static char const *bt_sample_rate_tx_text[] = {"KHZ_8", "KHZ_16",
+					"KHZ_44P1", "KHZ_48",
+					"KHZ_88P2", "KHZ_96"};
 static const char *const usb_ch_text[] = {"One", "Two", "Three", "Four",
 					   "Five", "Six", "Seven",
 					   "Eight"};
@@ -462,6 +468,8 @@ static SOC_ENUM_SINGLE_EXT_DECL(slim_0_tx_sample_rate, slim_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_5_rx_sample_rate, slim_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(slim_6_rx_sample_rate, slim_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(bt_sample_rate, bt_sample_rate_text);
+static SOC_ENUM_SINGLE_EXT_DECL(bt_sample_rate_rx, bt_sample_rate_rx_text);
+static SOC_ENUM_SINGLE_EXT_DECL(bt_sample_rate_tx, bt_sample_rate_tx_text);
 static SOC_ENUM_SINGLE_EXT_DECL(usb_rx_sample_rate, usb_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(usb_tx_sample_rate, usb_sample_rate_text);
 static SOC_ENUM_SINGLE_EXT_DECL(ext_disp_rx_sample_rate,
@@ -1075,6 +1083,130 @@ static int msm_bt_sample_rate_put(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
+static int msm_bt_sample_rate_rx_get(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	switch (slim_rx_cfg[SLIM_RX_7].sample_rate) {
+	case SAMPLING_RATE_96KHZ:
+		ucontrol->value.integer.value[0] = 5;
+		break;
+	case SAMPLING_RATE_88P2KHZ:
+		ucontrol->value.integer.value[0] = 4;
+		break;
+	case SAMPLING_RATE_48KHZ:
+		ucontrol->value.integer.value[0] = 3;
+		break;
+	case SAMPLING_RATE_44P1KHZ:
+		ucontrol->value.integer.value[0] = 2;
+		break;
+	case SAMPLING_RATE_16KHZ:
+		ucontrol->value.integer.value[0] = 1;
+		break;
+	case SAMPLING_RATE_8KHZ:
+	default:
+		ucontrol->value.integer.value[0] = 0;
+		break;
+	}
+	pr_debug("%s: sample rate rx = %d", __func__,
+		 slim_rx_cfg[SLIM_RX_7].sample_rate);
+
+	return 0;
+}
+
+static int msm_bt_sample_rate_rx_put(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	switch (ucontrol->value.integer.value[0]) {
+	case 1:
+		slim_rx_cfg[SLIM_RX_7].sample_rate = SAMPLING_RATE_16KHZ;
+		break;
+	case 2:
+		slim_rx_cfg[SLIM_RX_7].sample_rate = SAMPLING_RATE_44P1KHZ;
+		break;
+	case 3:
+		slim_rx_cfg[SLIM_RX_7].sample_rate = SAMPLING_RATE_48KHZ;
+		break;
+	case 4:
+		slim_rx_cfg[SLIM_RX_7].sample_rate = SAMPLING_RATE_88P2KHZ;
+		break;
+	case 5:
+		slim_rx_cfg[SLIM_RX_7].sample_rate = SAMPLING_RATE_96KHZ;
+		break;
+	case 0:
+	default:
+		slim_rx_cfg[SLIM_RX_7].sample_rate = SAMPLING_RATE_8KHZ;
+		break;
+	}
+	pr_debug("%s: sample rate: slim7_rx = %d, value = %d\n",
+		 __func__,
+		 slim_rx_cfg[SLIM_RX_7].sample_rate,
+		 ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
+static int msm_bt_sample_rate_tx_get(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	switch (slim_tx_cfg[SLIM_TX_7].sample_rate) {
+	case SAMPLING_RATE_96KHZ:
+		ucontrol->value.integer.value[0] = 5;
+		break;
+	case SAMPLING_RATE_88P2KHZ:
+		ucontrol->value.integer.value[0] = 4;
+		break;
+	case SAMPLING_RATE_48KHZ:
+		ucontrol->value.integer.value[0] = 3;
+		break;
+	case SAMPLING_RATE_44P1KHZ:
+		ucontrol->value.integer.value[0] = 2;
+		break;
+	case SAMPLING_RATE_16KHZ:
+		ucontrol->value.integer.value[0] = 1;
+		break;
+	case SAMPLING_RATE_8KHZ:
+	default:
+		ucontrol->value.integer.value[0] = 0;
+		break;
+	}
+	pr_debug("%s: sample rate tx = %d", __func__,
+		 slim_tx_cfg[SLIM_TX_7].sample_rate);
+
+	return 0;
+}
+
+static int msm_bt_sample_rate_tx_put(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	switch (ucontrol->value.integer.value[0]) {
+	case 1:
+		slim_tx_cfg[SLIM_TX_7].sample_rate = SAMPLING_RATE_16KHZ;
+		break;
+	case 2:
+		slim_tx_cfg[SLIM_TX_7].sample_rate = SAMPLING_RATE_44P1KHZ;
+		break;
+	case 3:
+		slim_tx_cfg[SLIM_TX_7].sample_rate = SAMPLING_RATE_48KHZ;
+		break;
+	case 4:
+		slim_tx_cfg[SLIM_TX_7].sample_rate = SAMPLING_RATE_88P2KHZ;
+		break;
+	case 5:
+		slim_tx_cfg[SLIM_TX_7].sample_rate = SAMPLING_RATE_96KHZ;
+		break;
+	case 0:
+	default:
+		slim_tx_cfg[SLIM_TX_7].sample_rate = SAMPLING_RATE_8KHZ;
+		break;
+	}
+	pr_debug("%s: sample rate: slim7_tx = %d, value = %d\n",
+		 __func__,
+		 slim_tx_cfg[SLIM_TX_7].sample_rate,
+		 ucontrol->value.enumerated.item[0]);
+
+	return 0;
+}
+
 static int usb_audio_rx_ch_get(struct snd_kcontrol *kcontrol,
 			       struct snd_ctl_elem_value *ucontrol)
 {
@@ -2737,6 +2869,12 @@ static const struct snd_kcontrol_new msm_snd_controls[] = {
 	SOC_ENUM_EXT("BT SampleRate", bt_sample_rate,
 			msm_bt_sample_rate_get,
 			msm_bt_sample_rate_put),
+	SOC_ENUM_EXT("BT SampleRate RX", bt_sample_rate_rx,
+			msm_bt_sample_rate_rx_get,
+			msm_bt_sample_rate_rx_put),
+	SOC_ENUM_EXT("BT SampleRate TX", bt_sample_rate_tx,
+			msm_bt_sample_rate_tx_get,
+			msm_bt_sample_rate_tx_put),
 	SOC_ENUM_EXT("USB_AUDIO_RX SampleRate", usb_rx_sample_rate,
 			usb_audio_rx_sample_rate_get,
 			usb_audio_rx_sample_rate_put),
@@ -5502,6 +5640,22 @@ static struct snd_soc_dai_link msm_common_misc_fe_dai_links[] = {
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.codec_name = "snd-soc-dummy",
 	},
+	{
+		.name = "SLIMBUS_7 Hostless",
+		.stream_name = "SLIMBUS_7 Hostless",
+		.cpu_dai_name = "SLIMBUS7_HOSTLESS",
+		.platform_name = "msm-pcm-hostless",
+		.dynamic = 1,
+		.dpcm_capture = 1,
+		.dpcm_playback = 1,
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST,
+			    SND_SOC_DPCM_TRIGGER_POST},
+		.no_host_mode = SND_SOC_DAI_LINK_NO_HOST,
+		.ignore_suspend = 1,
+		.ignore_pmdown_time = 1,
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+	},
 };
 
 static struct snd_soc_dai_link msm_common_be_dai_links[] = {