asoc: msm8998: 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: Iac3cd5317db2653a87f106d43cfc7fe90e4f4875
Signed-off-by: Soumya Managoli <smanag@codeaurora.org>

1 files changed, 99 insertions, 1 deletions

diff --git a/sound/soc/msm/msm8998.c b/sound/soc/msm/msm8998.c
index 9159ea642816..1e97a0cd76ac 100644
--- a/sound/soc/msm/msm8998.c
+++ b/sound/soc/msm/msm8998.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -412,6 +412,8 @@ static char const *slim_sample_rate_text[] = {"KHZ_8", "KHZ_16",
 					"KHZ_88P2", "KHZ_96", "KHZ_176P4",
 					"KHZ_192", "KHZ_352P8", "KHZ_384"};
 static char const *bt_sample_rate_text[] = {"KHZ_8", "KHZ_16", "KHZ_48"};
+static char const *bt_sample_rate_rx_text[] = {"KHZ_8", "KHZ_16", "KHZ_48"};
+static char const *bt_sample_rate_tx_text[] = {"KHZ_8", "KHZ_16", "KHZ_48"};
 static const char *const usb_ch_text[] = {"One", "Two", "Three", "Four",
 					   "Five", "Six", "Seven",
 					   "Eight"};
@@ -465,6 +467,8 @@ 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,
@@ -1046,6 +1050,94 @@ 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_48KHZ:
+		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 = %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_48KHZ;
+		break;
+	case 0:
+	default:
+		slim_rx_cfg[SLIM_RX_7].sample_rate = SAMPLING_RATE_8KHZ;
+		break;
+	}
+	pr_debug("%s: sample rates: 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_48KHZ:
+		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 = %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_48KHZ;
+		break;
+	case 0:
+	default:
+		slim_tx_cfg[SLIM_TX_7].sample_rate = SAMPLING_RATE_8KHZ;
+		break;
+	}
+	pr_debug("%s: sample rates: 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)
 {
@@ -2643,6 +2735,12 @@ 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),