diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
new file mode 100644
index 0000000..e8ae5b7
--- /dev/null
+++ b/hal/msm8916/platform.c
@@ -0,0 +1,2169 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "msm8916_platform"
+/*#define LOG_NDEBUG 0*/
+#define LOG_NDDEBUG 0
+
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <cutils/log.h>
+#include <cutils/properties.h>
+#include <cutils/str_parms.h>
+#include <audio_hw.h>
+#include <platform_api.h>
+#include "platform.h"
+#include "audio_extn.h"
+#include "voice_extn.h"
+#include "sound/msmcal-hwdep.h"
+#include <dirent.h>
+#define MAX_MIXER_XML_PATH  100
+#define MIXER_XML_PATH "/system/etc/mixer_paths.xml"
+#define MIXER_XML_PATH_MTP "/system/etc/mixer_paths_mtp.xml"
+#define MIXER_XML_PATH_MSM8909_PM8916 "/system/etc/mixer_paths_msm8909_pm8916.xml"
+#define MIXER_XML_PATH_L9300 "/system/etc/mixer_paths_l9300.xml"
+
+#define LIB_ACDB_LOADER "libacdbloader.so"
+#define AUDIO_DATA_BLOCK_MIXER_CTL "HDMI EDID"
+#define CVD_VERSION_MIXER_CTL "CVD Version"
+
+/*
+ * This file will have a maximum of 38 bytes:
+ *
+ * 4 bytes: number of audio blocks
+ * 4 bytes: total length of Short Audio Descriptor (SAD) blocks
+ * Maximum 10 * 3 bytes: SAD blocks
+ */
+#define MAX_SAD_BLOCKS      10
+#define SAD_BLOCK_SIZE      3
+#define MAX_CVD_VERSION_STRING_SIZE    100
+
+/* EDID format ID for LPCM audio */
+#define EDID_FORMAT_LPCM    1
+
+/* Retry for delay in FW loading*/
+#define RETRY_NUMBER 20
+#define RETRY_US 500000
+#define MAX_SND_CARD 8
+
+#define SAMPLE_RATE_8KHZ  8000
+#define SAMPLE_RATE_16KHZ 16000
+
+#define MAX_SET_CAL_BYTE_SIZE 65536
+
+#define MAX_CAL_NAME 20
+
+#define QMIC_FLAG 0x00000004
+
+char cal_name_info[WCD9XXX_MAX_CAL][MAX_CAL_NAME] = {
+        [WCD9XXX_MBHC_CAL] = "mbhc_cal",
+};
+
+struct audio_block_header
+{
+    int reserved;
+    int length;
+};
+
+enum {
+    CAL_MODE_SEND           = 0x1,
+    CAL_MODE_PERSIST        = 0x2,
+    CAL_MODE_RTAC           = 0x4
+};
+
+#define PLATFORM_CONFIG_KEY_OPERATOR_INFO "operator_info"
+
+struct operator_info {
+    struct listnode list;
+    char *name;
+    char *mccmnc;
+};
+
+struct operator_specific_device {
+    struct listnode list;
+    char *operator;
+    char *mixer_path;
+    int acdb_id;
+};
+
+static struct listnode operator_info_list;
+static struct listnode *operator_specific_device_table[SND_DEVICE_MAX];
+
+/* Audio calibration related functions */
+typedef void (*acdb_deallocate_t)();
+typedef int  (*acdb_init_v2_cvd_t)(const char *, char *, int);
+typedef void (*acdb_send_audio_cal_t)(int, int);
+typedef void (*acdb_send_voice_cal_t)(int, int);
+typedef int (*acdb_reload_vocvoltable_t)(int);
+typedef int (*acdb_loader_get_calibration_t)(char *attr, int size, void *data);
+acdb_loader_get_calibration_t acdb_loader_get_calibration;
+
+struct platform_data {
+    struct audio_device *adev;
+    bool fluence_in_spkr_mode;
+    bool fluence_in_voice_call;
+    bool fluence_in_voice_rec;
+    int  fluence_type;
+    char fluence_cap[PROPERTY_VALUE_MAX];
+    int  fluence_mode;
+    bool ec_ref_enabled;
+    bool gsm_mode_enabled;
+    /* Audio calibration related functions */
+    void                       *acdb_handle;
+    acdb_init_v2_cvd_t         acdb_init;
+    acdb_deallocate_t          acdb_deallocate;
+    acdb_send_audio_cal_t      acdb_send_audio_cal;
+    acdb_send_voice_cal_t      acdb_send_voice_cal;
+    acdb_reload_vocvoltable_t  acdb_reload_vocvoltable;
+    void *hw_info;
+    char ec_ref_mixer_path[64];
+    bool speaker_lr_swap;
+};
+
+int pcm_device_table[AUDIO_USECASE_MAX][2] = {
+    [USECASE_AUDIO_PLAYBACK_DEEP_BUFFER] = {DEEP_BUFFER_PCM_DEVICE,
+                                            DEEP_BUFFER_PCM_DEVICE},
+    [USECASE_AUDIO_PLAYBACK_LOW_LATENCY] = {LOWLATENCY_PCM_DEVICE,
+                                           LOWLATENCY_PCM_DEVICE},
+    [USECASE_AUDIO_PLAYBACK_MULTI_CH] = {MULTIMEDIA2_PCM_DEVICE,
+                                        MULTIMEDIA2_PCM_DEVICE},
+    [USECASE_AUDIO_PLAYBACK_OFFLOAD] =
+                     {PLAYBACK_OFFLOAD_DEVICE, PLAYBACK_OFFLOAD_DEVICE},
+    [USECASE_AUDIO_PLAYBACK_ULL] = {MULTIMEDIA3_PCM_DEVICE, MULTIMEDIA3_PCM_DEVICE},
+    [USECASE_AUDIO_RECORD] = {AUDIO_RECORD_PCM_DEVICE, AUDIO_RECORD_PCM_DEVICE},
+    [USECASE_AUDIO_RECORD_LOW_LATENCY] = {LOWLATENCY_PCM_DEVICE,
+                                          LOWLATENCY_PCM_DEVICE},
+    [USECASE_AUDIO_HFP_SCO] = {HFP_PCM_RX, HFP_SCO_RX},
+    [USECASE_AUDIO_HFP_SCO_WB] = {HFP_PCM_RX, HFP_SCO_RX},
+    [USECASE_VOICE_CALL] = {VOICE_CALL_PCM_DEVICE, VOICE_CALL_PCM_DEVICE},
+    [USECASE_VOICE2_CALL] = {VOICE2_CALL_PCM_DEVICE, VOICE2_CALL_PCM_DEVICE},
+    [USECASE_VOLTE_CALL] = {VOLTE_CALL_PCM_DEVICE, VOLTE_CALL_PCM_DEVICE},
+    [USECASE_QCHAT_CALL] = {QCHAT_CALL_PCM_DEVICE, QCHAT_CALL_PCM_DEVICE},
+    [USECASE_VOWLAN_CALL] = {VOWLAN_CALL_PCM_DEVICE, VOWLAN_CALL_PCM_DEVICE},
+    [USECASE_VOICEMMODE1_CALL] = {-1, -1}, /* pcm ids updated from platform info file */
+    [USECASE_VOICEMMODE2_CALL] = {-1, -1}, /* pcm ids updated from platform info file */
+    [USECASE_INCALL_REC_UPLINK] = {AUDIO_RECORD_PCM_DEVICE,
+                                   AUDIO_RECORD_PCM_DEVICE},
+    [USECASE_INCALL_REC_DOWNLINK] = {AUDIO_RECORD_PCM_DEVICE,
+                                     AUDIO_RECORD_PCM_DEVICE},
+    [USECASE_INCALL_REC_UPLINK_AND_DOWNLINK] = {AUDIO_RECORD_PCM_DEVICE,
+                                                AUDIO_RECORD_PCM_DEVICE},
+    [USECASE_AUDIO_SPKR_CALIB_RX] = {SPKR_PROT_CALIB_RX_PCM_DEVICE, -1},
+    [USECASE_AUDIO_SPKR_CALIB_TX] = {-1, SPKR_PROT_CALIB_TX_PCM_DEVICE},
+    [USECASE_AUDIO_PLAYBACK_AFE_PROXY] = {AFE_PROXY_PLAYBACK_PCM_DEVICE,
+                                          AFE_PROXY_RECORD_PCM_DEVICE},
+    [USECASE_AUDIO_RECORD_AFE_PROXY] = {AFE_PROXY_PLAYBACK_PCM_DEVICE,
+                                        AFE_PROXY_RECORD_PCM_DEVICE},
+};
+
+/* Array to store sound devices */
+static const char * const device_table[SND_DEVICE_MAX] = {
+    [SND_DEVICE_NONE] = "none",
+    /* Playback sound devices */
+    [SND_DEVICE_OUT_HANDSET] = "handset",
+    [SND_DEVICE_OUT_SPEAKER] = "speaker",
+    [SND_DEVICE_OUT_SPEAKER_REVERSE] = "speaker-reverse",
+    [SND_DEVICE_OUT_HEADPHONES] = "headphones",
+    [SND_DEVICE_OUT_LINE] = "line",
+    [SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES] = "speaker-and-headphones",
+    [SND_DEVICE_OUT_SPEAKER_AND_LINE] = "speaker-and-line",
+    [SND_DEVICE_OUT_VOICE_HANDSET] = "voice-handset",
+    [SND_DEVICE_OUT_VOICE_HAC_HANDSET] = "voice-hac-handset",
+    [SND_DEVICE_OUT_VOICE_SPEAKER] = "voice-speaker",
+    [SND_DEVICE_OUT_VOICE_HEADPHONES] = "voice-headphones",
+    [SND_DEVICE_OUT_VOICE_LINE] = "voice-line",
+    [SND_DEVICE_OUT_HDMI] = "hdmi",
+    [SND_DEVICE_OUT_SPEAKER_AND_HDMI] = "speaker-and-hdmi",
+    [SND_DEVICE_OUT_BT_SCO] = "bt-sco-headset",
+    [SND_DEVICE_OUT_BT_SCO_WB] = "bt-sco-headset-wb",
+    [SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES] = "voice-tty-full-headphones",
+    [SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES] = "voice-tty-vco-headphones",
+    [SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET] = "voice-tty-hco-handset",
+    [SND_DEVICE_OUT_VOICE_TX] = "voice-tx",
+    [SND_DEVICE_OUT_AFE_PROXY] = "afe-proxy",
+    [SND_DEVICE_OUT_USB_HEADSET] = "usb-headphones",
+    [SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] = "speaker-and-usb-headphones",
+    [SND_DEVICE_OUT_SPEAKER_PROTECTED] = "speaker-protected",
+    [SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED] = "voice-speaker-protected",
+
+    /* Capture sound devices */
+    [SND_DEVICE_IN_HANDSET_MIC] = "handset-mic",
+    [SND_DEVICE_IN_HANDSET_MIC_EXTERNAL] = "handset-mic-ext",
+    [SND_DEVICE_IN_HANDSET_MIC_AEC] = "handset-mic",
+    [SND_DEVICE_IN_HANDSET_MIC_NS] = "handset-mic",
+    [SND_DEVICE_IN_HANDSET_MIC_AEC_NS] = "handset-mic",
+    [SND_DEVICE_IN_HANDSET_DMIC] = "dmic-endfire",
+    [SND_DEVICE_IN_HANDSET_DMIC_AEC] = "dmic-endfire",
+    [SND_DEVICE_IN_HANDSET_DMIC_NS] = "dmic-endfire",
+    [SND_DEVICE_IN_HANDSET_DMIC_AEC_NS] = "dmic-endfire",
+    [SND_DEVICE_IN_SPEAKER_MIC] = "speaker-mic",
+    [SND_DEVICE_IN_SPEAKER_MIC_AEC] = "speaker-mic",
+    [SND_DEVICE_IN_SPEAKER_MIC_NS] = "speaker-mic",
+    [SND_DEVICE_IN_SPEAKER_MIC_AEC_NS] = "speaker-mic",
+    [SND_DEVICE_IN_SPEAKER_DMIC] = "speaker-dmic-endfire",
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC] = "speaker-dmic-endfire",
+    [SND_DEVICE_IN_SPEAKER_DMIC_NS] = "speaker-dmic-endfire",
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS] = "speaker-dmic-endfire",
+    [SND_DEVICE_IN_HEADSET_MIC] = "headset-mic",
+    [SND_DEVICE_IN_HEADSET_MIC_FLUENCE] = "headset-mic",
+    [SND_DEVICE_IN_VOICE_SPEAKER_MIC] = "voice-speaker-mic",
+    [SND_DEVICE_IN_VOICE_HEADSET_MIC] = "voice-headset-mic",
+    [SND_DEVICE_IN_HDMI_MIC] = "hdmi-mic",
+    [SND_DEVICE_IN_BT_SCO_MIC] = "bt-sco-mic",
+    [SND_DEVICE_IN_BT_SCO_MIC_NREC] = "bt-sco-mic",
+    [SND_DEVICE_IN_BT_SCO_MIC_WB] = "bt-sco-mic-wb",
+    [SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = "bt-sco-mic-wb",
+    [SND_DEVICE_IN_CAMCORDER_MIC] = "camcorder-mic",
+    [SND_DEVICE_IN_VOICE_DMIC] = "voice-dmic-ef",
+    [SND_DEVICE_IN_VOICE_SPEAKER_DMIC] = "voice-speaker-dmic-ef",
+    [SND_DEVICE_IN_VOICE_SPEAKER_QMIC] = "voice-speaker-qmic",
+    [SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC] = "voice-tty-full-headset-mic",
+    [SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC] = "voice-tty-vco-handset-mic",
+    [SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC] = "voice-tty-hco-headset-mic",
+    [SND_DEVICE_IN_VOICE_REC_MIC] = "voice-rec-mic",
+    [SND_DEVICE_IN_VOICE_REC_MIC_NS] = "voice-rec-mic",
+    [SND_DEVICE_IN_VOICE_REC_DMIC_STEREO] = "voice-rec-dmic-ef",
+    [SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE] = "voice-rec-dmic-ef-fluence",
+    [SND_DEVICE_IN_VOICE_RX] = "voice-rx",
+    [SND_DEVICE_IN_USB_HEADSET_MIC] = "usb-headset-mic",
+    [SND_DEVICE_IN_CAPTURE_FM] = "capture-fm",
+    [SND_DEVICE_IN_AANC_HANDSET_MIC] = "aanc-handset-mic",
+    [SND_DEVICE_IN_QUAD_MIC] = "quad-mic",
+    [SND_DEVICE_IN_HANDSET_STEREO_DMIC] = "handset-stereo-dmic-ef",
+    [SND_DEVICE_IN_SPEAKER_STEREO_DMIC] = "speaker-stereo-dmic-ef",
+    [SND_DEVICE_IN_CAPTURE_VI_FEEDBACK] = "vi-feedback",
+    [SND_DEVICE_IN_VOICE_SPEAKER_DMIC_BROADSIDE] = "voice-speaker-dmic-broadside",
+    [SND_DEVICE_IN_SPEAKER_DMIC_BROADSIDE] = "speaker-dmic-broadside",
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC_BROADSIDE] = "speaker-dmic-broadside",
+    [SND_DEVICE_IN_SPEAKER_DMIC_NS_BROADSIDE] = "speaker-dmic-broadside",
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS_BROADSIDE] = "speaker-dmic-broadside",
+    [SND_DEVICE_IN_HANDSET_QMIC] = "quad-mic",
+    [SND_DEVICE_IN_SPEAKER_QMIC_AEC] = "quad-mic",
+    [SND_DEVICE_IN_SPEAKER_QMIC_NS] = "quad-mic",
+    [SND_DEVICE_IN_SPEAKER_QMIC_AEC_NS] = "quad-mic",
+};
+
+/* ACDB IDs (audio DSP path configuration IDs) for each sound device */
+static int acdb_device_table[SND_DEVICE_MAX] = {
+    [SND_DEVICE_NONE] = -1,
+    [SND_DEVICE_OUT_HANDSET] = 7,
+    [SND_DEVICE_OUT_SPEAKER] = 14,
+    [SND_DEVICE_OUT_SPEAKER_REVERSE] = 14,
+    [SND_DEVICE_OUT_LINE] = 10,
+    [SND_DEVICE_OUT_HEADPHONES] = 10,
+    [SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES] = 10,
+    [SND_DEVICE_OUT_SPEAKER_AND_LINE] = 10,
+    [SND_DEVICE_OUT_VOICE_HANDSET] = 7,
+    [SND_DEVICE_OUT_VOICE_HAC_HANDSET] = 53,
+    [SND_DEVICE_OUT_VOICE_LINE] = 10,
+    [SND_DEVICE_OUT_VOICE_SPEAKER] = 14,
+    [SND_DEVICE_OUT_VOICE_HEADPHONES] = 10,
+    [SND_DEVICE_OUT_HDMI] = 18,
+    [SND_DEVICE_OUT_SPEAKER_AND_HDMI] = 14,
+    [SND_DEVICE_OUT_BT_SCO] = 22,
+    [SND_DEVICE_OUT_BT_SCO_WB] = 39,
+    [SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES] = 17,
+    [SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES] = 17,
+    [SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET] = 37,
+    [SND_DEVICE_OUT_VOICE_TX] = 45,
+    [SND_DEVICE_OUT_AFE_PROXY] = 0,
+    [SND_DEVICE_OUT_USB_HEADSET] = 45,
+    [SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] = 14,
+    [SND_DEVICE_OUT_SPEAKER_PROTECTED] = 124,
+    [SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED] = 101,
+
+    [SND_DEVICE_IN_HANDSET_MIC] = 4,
+    [SND_DEVICE_IN_HANDSET_MIC_EXTERNAL] = 4,
+    [SND_DEVICE_IN_HANDSET_MIC_AEC] = 106,
+    [SND_DEVICE_IN_HANDSET_MIC_NS] = 107,
+    [SND_DEVICE_IN_HANDSET_MIC_AEC_NS] = 108,
+    [SND_DEVICE_IN_HANDSET_DMIC] = 41,
+    [SND_DEVICE_IN_HANDSET_DMIC_AEC] = 109,
+    [SND_DEVICE_IN_HANDSET_DMIC_NS] = 110,
+    [SND_DEVICE_IN_HANDSET_DMIC_AEC_NS] = 111,
+    [SND_DEVICE_IN_SPEAKER_MIC] = 11,
+    [SND_DEVICE_IN_SPEAKER_MIC_AEC] = 112,
+    [SND_DEVICE_IN_SPEAKER_MIC_NS] = 113,
+    [SND_DEVICE_IN_SPEAKER_MIC_AEC_NS] = 114,
+    [SND_DEVICE_IN_SPEAKER_DMIC] = 43,
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC] = 115,
+    [SND_DEVICE_IN_SPEAKER_DMIC_NS] = 116,
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS] = 117,
+    [SND_DEVICE_IN_HEADSET_MIC] = 8,
+    [SND_DEVICE_IN_HEADSET_MIC_FLUENCE] = 47,
+    [SND_DEVICE_IN_VOICE_SPEAKER_MIC] = 11,
+    [SND_DEVICE_IN_VOICE_HEADSET_MIC] = 8,
+    [SND_DEVICE_IN_HDMI_MIC] = 4,
+    [SND_DEVICE_IN_BT_SCO_MIC] = 21,
+    [SND_DEVICE_IN_BT_SCO_MIC_NREC] = 122,
+    [SND_DEVICE_IN_BT_SCO_MIC_WB] = 38,
+    [SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = 123,
+    [SND_DEVICE_IN_CAMCORDER_MIC] = 4,
+    [SND_DEVICE_IN_VOICE_DMIC] = 41,
+    [SND_DEVICE_IN_VOICE_SPEAKER_DMIC] = 43,
+    [SND_DEVICE_IN_VOICE_SPEAKER_QMIC] = 19,
+    [SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC] = 16,
+    [SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC] = 36,
+    [SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC] = 16,
+    [SND_DEVICE_IN_VOICE_REC_MIC] = 4,
+    [SND_DEVICE_IN_VOICE_REC_MIC_NS] = 107,
+    [SND_DEVICE_IN_VOICE_REC_DMIC_STEREO] = 34,
+    [SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE] = 41,
+    [SND_DEVICE_IN_VOICE_RX] = 44,
+    [SND_DEVICE_IN_USB_HEADSET_MIC] = 44,
+    [SND_DEVICE_IN_CAPTURE_FM] = 0,
+    [SND_DEVICE_IN_AANC_HANDSET_MIC] = 104,
+    [SND_DEVICE_IN_QUAD_MIC] = 46,
+    [SND_DEVICE_IN_HANDSET_STEREO_DMIC] = 34,
+    [SND_DEVICE_IN_SPEAKER_STEREO_DMIC] = 35,
+    [SND_DEVICE_IN_CAPTURE_VI_FEEDBACK] = 102,
+    [SND_DEVICE_IN_VOICE_SPEAKER_DMIC_BROADSIDE] = 12,
+    [SND_DEVICE_IN_SPEAKER_DMIC_BROADSIDE] = 12,
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC_BROADSIDE] = 119,
+    [SND_DEVICE_IN_SPEAKER_DMIC_NS_BROADSIDE] = 121,
+    [SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS_BROADSIDE] = 120,
+    [SND_DEVICE_IN_HANDSET_QMIC] = 125,
+    [SND_DEVICE_IN_SPEAKER_QMIC_AEC] = 126,
+    [SND_DEVICE_IN_SPEAKER_QMIC_NS] = 127,
+    [SND_DEVICE_IN_SPEAKER_QMIC_AEC_NS] = 129,
+};
+
+struct name_to_index {
+    char name[100];
+    unsigned int index;
+};
+
+#define TO_NAME_INDEX(X)   #X, X
+
+/* Used to get index from parsed sting */
+static struct name_to_index snd_device_name_index[SND_DEVICE_MAX] = {
+    {TO_NAME_INDEX(SND_DEVICE_OUT_HANDSET)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_SPEAKER)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_SPEAKER_REVERSE)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_HEADPHONES)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_LINE)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_SPEAKER_AND_LINE)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_HANDSET)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_HAC_HANDSET)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_SPEAKER)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_HEADPHONES)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_LINE)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_HDMI)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_SPEAKER_AND_HDMI)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_BT_SCO)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_BT_SCO_WB)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_TX)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_AFE_PROXY)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_USB_HEADSET)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_SPEAKER_PROTECTED)},
+    {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_MIC_EXTERNAL)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_MIC_AEC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_MIC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_MIC_AEC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_DMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_DMIC_AEC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_DMIC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_DMIC_AEC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_MIC_AEC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_MIC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_MIC_AEC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC_AEC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HEADSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HEADSET_MIC_FLUENCE)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_SPEAKER_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_HEADSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HDMI_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_NREC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_WB)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_BT_SCO_MIC_WB_NREC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_CAMCORDER_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_DMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_SPEAKER_DMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_SPEAKER_QMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_REC_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_REC_MIC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_REC_DMIC_STEREO)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_RX)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_USB_HEADSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_CAPTURE_FM)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_AANC_HANDSET_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_QUAD_MIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_STEREO_DMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_STEREO_DMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_CAPTURE_VI_FEEDBACK)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_VOICE_SPEAKER_DMIC_BROADSIDE)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC_BROADSIDE)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC_AEC_BROADSIDE)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC_NS_BROADSIDE)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS_BROADSIDE)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_HANDSET_QMIC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_QMIC_AEC)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_QMIC_NS)},
+    {TO_NAME_INDEX(SND_DEVICE_IN_SPEAKER_QMIC_AEC_NS)},
+};
+
+static char * backend_table[SND_DEVICE_MAX] = {0};
+static char * hw_interface_table[SND_DEVICE_MAX] = {0};
+
+static struct name_to_index usecase_name_index[AUDIO_USECASE_MAX] = {
+    {TO_NAME_INDEX(USECASE_AUDIO_PLAYBACK_DEEP_BUFFER)},
+    {TO_NAME_INDEX(USECASE_AUDIO_PLAYBACK_LOW_LATENCY)},
+    {TO_NAME_INDEX(USECASE_AUDIO_PLAYBACK_MULTI_CH)},
+    {TO_NAME_INDEX(USECASE_AUDIO_PLAYBACK_OFFLOAD)},
+    {TO_NAME_INDEX(USECASE_AUDIO_PLAYBACK_ULL)},
+    {TO_NAME_INDEX(USECASE_AUDIO_RECORD)},
+    {TO_NAME_INDEX(USECASE_AUDIO_RECORD_LOW_LATENCY)},
+    {TO_NAME_INDEX(USECASE_VOICE_CALL)},
+    {TO_NAME_INDEX(USECASE_VOICE2_CALL)},
+    {TO_NAME_INDEX(USECASE_VOLTE_CALL)},
+    {TO_NAME_INDEX(USECASE_QCHAT_CALL)},
+    {TO_NAME_INDEX(USECASE_VOWLAN_CALL)},
+    {TO_NAME_INDEX(USECASE_VOICEMMODE1_CALL)},
+    {TO_NAME_INDEX(USECASE_VOICEMMODE2_CALL)},
+    {TO_NAME_INDEX(USECASE_AUDIO_HFP_SCO)},
+    {TO_NAME_INDEX(USECASE_AUDIO_SPKR_CALIB_TX)},
+};
+
+#define DEEP_BUFFER_PLATFORM_DELAY (29*1000LL)
+#define LOW_LATENCY_PLATFORM_DELAY (13*1000LL)
+
+static void query_platform(const char *snd_card_name,
+                                      char *mixer_xml_path)
+{
+    if (!strncmp(snd_card_name, "msm8x16-snd-card-mtp",
+                 sizeof("msm8x16-snd-card-mtp"))) {
+        strlcpy(mixer_xml_path, MIXER_XML_PATH_MTP,
+                sizeof(MIXER_XML_PATH_MTP));
+    } else if (!strncmp(snd_card_name, "msm8909-pm8916-snd-card",
+                 sizeof("msm8909-pm8916-snd-card"))) {
+        strlcpy(mixer_xml_path, MIXER_XML_PATH_MSM8909_PM8916,
+                sizeof(MIXER_XML_PATH_MSM8909_PM8916));
+    } else if (!strncmp(snd_card_name, "msm8952-snd-card-mtp",
+                 sizeof("msm8952-snd-card-mtp"))) {
+        strlcpy(mixer_xml_path, MIXER_XML_PATH_MTP,
+                sizeof(MIXER_XML_PATH_MTP));
+    } else if (!strncmp(snd_card_name, "msm8952-l9300-snd-card",
+                 sizeof("msm8952-l9300-snd-card"))) {
+        strlcpy(mixer_xml_path, MIXER_XML_PATH_L9300,
+                sizeof(MIXER_XML_PATH_L9300));
+    } else {
+        strlcpy(mixer_xml_path, MIXER_XML_PATH,
+                sizeof(MIXER_XML_PATH));
+    }
+}
+
+static pthread_once_t check_op_once_ctl = PTHREAD_ONCE_INIT;
+static bool is_tmus = false;
+
+static void check_operator()
+{
+    char value[PROPERTY_VALUE_MAX];
+    int mccmnc;
+    property_get("gsm.sim.operator.numeric",value,"0");
+    mccmnc = atoi(value);
+    ALOGD("%s: tmus mccmnc %d", __func__, mccmnc);
+    switch(mccmnc) {
+    /* TMUS MCC(310), MNC(490, 260, 026) */
+    case 310490:
+    case 310260:
+    case 310026:
+    /* Add new TMUS MNC(800, 660, 580, 310, 270, 250, 240, 230, 220, 210, 200, 160) */
+    case 310800:
+    case 310660:
+    case 310580:
+    case 310310:
+    case 310270:
+    case 310250:
+    case 310240:
+    case 310230:
+    case 310220:
+    case 310210:
+    case 310200:
+    case 310160:
+        is_tmus = true;
+        break;
+    }
+}
+
+bool is_operator_tmus()
+{
+    pthread_once(&check_op_once_ctl, check_operator);
+    return is_tmus;
+}
+
+static char *get_current_operator()
+{
+    struct listnode *node;
+    struct operator_info *info_item;
+    char mccmnc[PROPERTY_VALUE_MAX];
+    char *ret = NULL;
+
+    property_get("gsm.sim.operator.numeric",mccmnc,"0");
+
+    list_for_each(node, &operator_info_list) {
+        info_item = node_to_item(node, struct operator_info, list);
+        if (strstr(info_item->mccmnc, mccmnc) != NULL) {
+            ret = info_item->name;
+        }
+    }
+
+    return ret;
+}
+
+static struct operator_specific_device *get_operator_specific_device(snd_device_t snd_device)
+{
+    struct listnode *node;
+    struct operator_specific_device *ret = NULL;
+    struct operator_specific_device *device_item;
+    char *operator_name;
+
+    operator_name = get_current_operator();
+    if (operator_name == NULL)
+        return ret;
+
+    list_for_each(node, operator_specific_device_table[snd_device]) {
+        device_item = node_to_item(node, struct operator_specific_device, list);
+        if (strcmp(operator_name, device_item->operator) == 0) {
+            ret = device_item;
+        }
+    }
+
+    return ret;
+}
+
+static int get_operator_specific_device_acdb_id(snd_device_t snd_device)
+{
+    struct operator_specific_device *device;
+    int ret = acdb_device_table[snd_device];
+
+    device = get_operator_specific_device(snd_device);
+    if (device != NULL)
+        ret = device->acdb_id;
+
+    return ret;
+}
+
+static const char *get_operator_specific_device_mixer_path(snd_device_t snd_device)
+{
+    struct operator_specific_device *device;
+    const char *ret = device_table[snd_device];
+
+    device = get_operator_specific_device(snd_device);
+    if (device != NULL)
+        ret = device->mixer_path;
+
+    return ret;
+}
+
+bool platform_send_gain_dep_cal(void *platform __unused, int level __unused)
+{
+    return 0;
+}
+
+void platform_set_echo_reference(struct audio_device *adev, bool enable,
+    audio_devices_t out_device)
+{
+    struct platform_data *my_data = (struct platform_data *)adev->platform;
+    snd_device_t snd_device = SND_DEVICE_NONE;
+
+    if (strcmp(my_data->ec_ref_mixer_path, "")) {
+        ALOGV("%s: disabling %s", __func__, my_data->ec_ref_mixer_path);
+        audio_route_reset_and_update_path(adev->audio_route,
+            my_data->ec_ref_mixer_path);
+    }
+
+    if (enable) {
+        if (out_device != AUDIO_DEVICE_NONE) {
+            snd_device = platform_get_output_snd_device(adev->platform, out_device);
+            platform_add_backend_name(adev->platform, my_data->ec_ref_mixer_path, snd_device);
+        }
+
+        strlcpy(my_data->ec_ref_mixer_path, "echo-reference",
+            sizeof(my_data->ec_ref_mixer_path));
+
+        ALOGD("%s: enabling %s", __func__, my_data->ec_ref_mixer_path);
+        audio_route_apply_and_update_path(adev->audio_route,
+            my_data->ec_ref_mixer_path);
+    }
+}
+
+static void set_platform_defaults()
+{
+    int32_t dev;
+    for (dev = 0; dev < SND_DEVICE_MAX; dev++) {
+        backend_table[dev] = NULL;
+        hw_interface_table[dev] = NULL;
+    }
+
+    // TBD - do these go to the platform-info.xml file.
+    // will help in avoiding strdups here
+    backend_table[SND_DEVICE_IN_BT_SCO_MIC] = strdup("bt-sco");
+    backend_table[SND_DEVICE_IN_BT_SCO_MIC_WB] = strdup("bt-sco-wb");
+    backend_table[SND_DEVICE_IN_BT_SCO_MIC_NREC] = strdup("bt-sco");
+    backend_table[SND_DEVICE_IN_BT_SCO_MIC_WB_NREC] = strdup("bt-sco-wb");
+    backend_table[SND_DEVICE_OUT_BT_SCO] = strdup("bt-sco");
+    backend_table[SND_DEVICE_OUT_BT_SCO_WB] = strdup("bt-sco-wb");
+    backend_table[SND_DEVICE_OUT_HDMI] = strdup("hdmi");
+    backend_table[SND_DEVICE_OUT_SPEAKER_AND_HDMI] = strdup("speaker-and-hdmi");
+    backend_table[SND_DEVICE_OUT_VOICE_TX] = strdup("afe-proxy");
+    backend_table[SND_DEVICE_IN_VOICE_RX] = strdup("afe-proxy");
+    backend_table[SND_DEVICE_OUT_AFE_PROXY] = strdup("afe-proxy");
+    backend_table[SND_DEVICE_OUT_USB_HEADSET] = strdup("usb-headphones");
+    backend_table[SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] =
+        strdup("speaker-and-usb-headphones");
+    backend_table[SND_DEVICE_IN_USB_HEADSET_MIC] = strdup("usb-headset-mic");
+    backend_table[SND_DEVICE_IN_CAPTURE_FM] = strdup("capture-fm");
+}
+
+void get_cvd_version(char *cvd_version, struct audio_device *adev)
+{
+    struct mixer_ctl *ctl;
+    int count;
+    int ret = 0;
+
+    ctl = mixer_get_ctl_by_name(adev->mixer, CVD_VERSION_MIXER_CTL);
+    if (!ctl) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s",  __func__, CVD_VERSION_MIXER_CTL);
+        goto done;
+    }
+    mixer_ctl_update(ctl);
+
+    count = mixer_ctl_get_num_values(ctl);
+    if (count > MAX_CVD_VERSION_STRING_SIZE)
+        count = MAX_CVD_VERSION_STRING_SIZE -1;
+
+    ret = mixer_ctl_get_array(ctl, cvd_version, count);
+    if (ret != 0) {
+        ALOGE("%s: ERROR! mixer_ctl_get_array() failed to get CVD Version", __func__);
+        goto done;
+    }
+
+done:
+    return;
+}
+
+static int hw_util_open(int card_no)
+{
+    int fd = -1;
+    char dev_name[256];
+
+    snprintf(dev_name, sizeof(dev_name), "/dev/snd/hwC%uD%u",
+                               card_no, WCD9XXX_CODEC_HWDEP_NODE);
+    ALOGD("%s Opening device %s\n", __func__, dev_name);
+    fd = open(dev_name, O_WRONLY);
+    if (fd < 0) {
+        ALOGE("%s: cannot open device '%s'\n", __func__, dev_name);
+        return fd;
+    }
+    ALOGD("%s success", __func__);
+    return fd;
+}
+
+struct param_data {
+    int    use_case;
+    int    acdb_id;
+    int    get_size;
+    int    buff_size;
+    int    data_size;
+    void   *buff;
+};
+
+static int send_codec_cal(acdb_loader_get_calibration_t acdb_loader_get_calibration,
+                          struct platform_data *plat_data __unused, int fd)
+{
+    int ret = 0, type;
+
+    for (type = WCD9XXX_ANC_CAL; type < WCD9XXX_MAX_CAL; type++) {
+        struct wcdcal_ioctl_buffer codec_buffer;
+        struct param_data calib;
+
+        if (type != WCD9XXX_MBHC_CAL)
+            continue;
+
+        calib.get_size = 1;
+        ret = acdb_loader_get_calibration(cal_name_info[type], sizeof(struct param_data),
+                                                                 &calib);
+        if (ret < 0) {
+            ALOGE("%s get_calibration failed\n", __func__);
+            return ret;
+        }
+        calib.get_size = 0;
+        calib.buff = malloc(calib.buff_size);
+        if(calib.buff == NULL) {
+            ALOGE("%s mem allocation for %d bytes for %s failed\n"
+                , __func__, calib.buff_size, cal_name_info[type]);
+            return -1;
+        }
+        ret = acdb_loader_get_calibration(cal_name_info[type],
+                              sizeof(struct param_data), &calib);
+        if (ret < 0) {
+            ALOGE("%s get_calibration failed type=%s calib.size=%d\n"
+                , __func__, cal_name_info[type], codec_buffer.size);
+            free(calib.buff);
+            return ret;
+        }
+        codec_buffer.buffer = calib.buff;
+        codec_buffer.size = calib.data_size;
+        codec_buffer.cal_type = type;
+        if (ioctl(fd, SNDRV_CTL_IOCTL_HWDEP_CAL_TYPE, &codec_buffer) < 0)
+            ALOGE("Failed to call ioctl  for %s err=%d calib.size=%d",
+                cal_name_info[type], errno, codec_buffer.size);
+        ALOGD("%s cal sent for %s calib.size=%d"
+            , __func__, cal_name_info[type], codec_buffer.size);
+        free(calib.buff);
+    }
+    return ret;
+}
+
+static void audio_hwdep_send_cal(struct platform_data *plat_data)
+{
+    int fd;
+
+    fd = hw_util_open(plat_data->adev->snd_card);
+    if (fd == -1) {
+        ALOGE("%s error open\n", __func__);
+        return;
+    }
+
+    acdb_loader_get_calibration = (acdb_loader_get_calibration_t)
+          dlsym(plat_data->acdb_handle, "acdb_loader_get_calibration");
+
+    if (acdb_loader_get_calibration == NULL) {
+        ALOGE("%s: ERROR. dlsym Error:%s acdb_loader_get_calibration", __func__,
+           dlerror());
+        return;
+    }
+    if (send_codec_cal(acdb_loader_get_calibration, plat_data, fd) < 0)
+        ALOGE("%s: Could not send anc cal", __FUNCTION__);
+}
+
+
+int platform_acdb_init(void *platform)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    char *cvd_version = NULL;
+    int key = 0;
+    const char *snd_card_name;
+    int result;
+    char value[PROPERTY_VALUE_MAX];
+    cvd_version = calloc(1, MAX_CVD_VERSION_STRING_SIZE);
+    if (!cvd_version)
+        ALOGE("Failed to allocate cvd version");
+    else
+        get_cvd_version(cvd_version, my_data->adev);
+
+    property_get("audio.ds1.metainfo.key",value,"0");
+    key = atoi(value);
+    snd_card_name = mixer_get_name(my_data->adev->mixer);
+
+    result = my_data->acdb_init(snd_card_name, cvd_version, key);
+
+    if (cvd_version)
+        free(cvd_version);
+    if (!result) {
+        ALOGD("ACDB initialized");
+        audio_hwdep_send_cal(my_data);
+    } else {
+        ALOGD("ACDB initialization failed");
+    }
+    return result;
+}
+
+void *platform_init(struct audio_device *adev)
+{
+    char platform[PROPERTY_VALUE_MAX] = {0};
+    char baseband[PROPERTY_VALUE_MAX] = {0};
+    char value[PROPERTY_VALUE_MAX] = {0};
+    struct platform_data *my_data = NULL;
+    int retry_num = 0, snd_card_num = 0, key = 0;
+    const char *snd_card_name;
+    char mixer_xml_path[MAX_MIXER_XML_PATH] = {0};
+    char ffspEnable[PROPERTY_VALUE_MAX] = {0};
+    char *cvd_version = NULL;
+    int idx;
+
+    my_data = calloc(1, sizeof(struct platform_data));
+    if (!my_data) {
+        ALOGE("failed to allocate platform data");
+        return NULL;
+    }
+
+    list_init(&operator_info_list);
+
+    while (snd_card_num < MAX_SND_CARD) {
+        adev->mixer = mixer_open(snd_card_num);
+
+        while (!adev->mixer && retry_num < RETRY_NUMBER) {
+            usleep(RETRY_US);
+            adev->mixer = mixer_open(snd_card_num);
+            retry_num++;
+        }
+
+        if (!adev->mixer) {
+            ALOGE("%s: Unable to open the mixer card: %d", __func__,
+                   snd_card_num);
+            retry_num = 0;
+            snd_card_num++;
+            continue;
+        }
+
+        snd_card_name = mixer_get_name(adev->mixer);
+        ALOGV("%s: snd_card_name: %s", __func__, snd_card_name);
+
+        my_data->hw_info = hw_info_init(snd_card_name);
+        if (!my_data->hw_info) {
+            ALOGE("%s: Failed to init hardware info", __func__);
+        } else {
+            query_platform(snd_card_name, mixer_xml_path);
+            ALOGD("%s: mixer path file is %s", __func__,
+                                    mixer_xml_path);
+            adev->audio_route = audio_route_init(snd_card_num,
+                                                 mixer_xml_path);
+            if (!adev->audio_route) {
+                ALOGE("%s: Failed to init audio route controls, aborting.",
+                       __func__);
+                free(my_data);
+                return NULL;
+            }
+            adev->snd_card = snd_card_num;
+            ALOGD("%s: Opened sound card:%d", __func__, snd_card_num);
+            break;
+        }
+        retry_num = 0;
+        snd_card_num++;
+    }
+
+    if (snd_card_num >= MAX_SND_CARD) {
+        ALOGE("%s: Unable to find correct sound card, aborting.", __func__);
+        free(my_data);
+        return NULL;
+    }
+
+    my_data->adev = adev;
+    my_data->fluence_in_spkr_mode = false;
+    my_data->fluence_in_voice_call = false;
+    my_data->fluence_in_voice_rec = false;
+    my_data->fluence_type = FLUENCE_NONE;
+    my_data->fluence_mode = FLUENCE_ENDFIRE;
+
+    property_get("ro.qc.sdk.audio.fluencetype", my_data->fluence_cap, "");
+    if (!strncmp("fluencepro", my_data->fluence_cap, sizeof("fluencepro"))) {
+        my_data->fluence_type = FLUENCE_QUAD_MIC | FLUENCE_DUAL_MIC;
+    } else if (!strncmp("fluence", my_data->fluence_cap, sizeof("fluence"))) {
+        my_data->fluence_type = FLUENCE_DUAL_MIC;
+    } else {
+        my_data->fluence_type = FLUENCE_NONE;
+    }
+
+    if (my_data->fluence_type != FLUENCE_NONE) {
+        property_get("persist.audio.fluence.voicecall",value,"");
+        if (!strncmp("true", value, sizeof("true"))) {
+            my_data->fluence_in_voice_call = true;
+        }
+
+        property_get("persist.audio.fluence.voicerec",value,"");
+        if (!strncmp("true", value, sizeof("true"))) {
+            my_data->fluence_in_voice_rec = true;
+        }
+
+        property_get("persist.audio.fluence.speaker",value,"");
+        if (!strncmp("true", value, sizeof("true"))) {
+            my_data->fluence_in_spkr_mode = true;
+        }
+
+        property_get("persist.audio.fluence.mode",value,"");
+        if (!strncmp("broadside", value, sizeof("broadside"))) {
+            my_data->fluence_mode = FLUENCE_BROADSIDE;
+        }
+    }
+
+    property_get("persist.audio.FFSP.enable", ffspEnable, "");
+    if (!strncmp("true", ffspEnable, sizeof("true"))) {
+        acdb_device_table[SND_DEVICE_OUT_SPEAKER] = 131;
+        acdb_device_table[SND_DEVICE_OUT_SPEAKER_REVERSE] = 131;
+        acdb_device_table[SND_DEVICE_OUT_SPEAKER_AND_HDMI] = 131;
+        acdb_device_table[SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] = 131;
+    }
+
+    my_data->acdb_handle = dlopen(LIB_ACDB_LOADER, RTLD_NOW);
+    if (my_data->acdb_handle == NULL) {
+        ALOGE("%s: DLOPEN failed for %s", __func__, LIB_ACDB_LOADER);
+    } else {
+        ALOGV("%s: DLOPEN successful for %s", __func__, LIB_ACDB_LOADER);
+        my_data->acdb_deallocate = (acdb_deallocate_t)dlsym(my_data->acdb_handle,
+                                                    "acdb_loader_deallocate_ACDB");
+        if (!my_data->acdb_deallocate)
+            ALOGE("%s: Could not find the symbol acdb_loader_deallocate_ACDB from %s",
+                  __func__, LIB_ACDB_LOADER);
+
+        my_data->acdb_send_audio_cal = (acdb_send_audio_cal_t)dlsym(my_data->acdb_handle,
+                                                    "acdb_loader_send_audio_cal");
+        if (!my_data->acdb_send_audio_cal)
+            ALOGE("%s: Could not find the symbol acdb_send_audio_cal from %s",
+                  __func__, LIB_ACDB_LOADER);
+
+        my_data->acdb_send_voice_cal = (acdb_send_voice_cal_t)dlsym(my_data->acdb_handle,
+                                                    "acdb_loader_send_voice_cal");
+        if (!my_data->acdb_send_voice_cal)
+            ALOGE("%s: Could not find the symbol acdb_loader_send_voice_cal from %s",
+                  __func__, LIB_ACDB_LOADER);
+
+        my_data->acdb_reload_vocvoltable = (acdb_reload_vocvoltable_t)dlsym(my_data->acdb_handle,
+                                                    "acdb_loader_reload_vocvoltable");
+        if (!my_data->acdb_reload_vocvoltable)
+            ALOGE("%s: Could not find the symbol acdb_loader_reload_vocvoltable from %s",
+                  __func__, LIB_ACDB_LOADER);
+
+        my_data->acdb_init = (acdb_init_v2_cvd_t)dlsym(my_data->acdb_handle,
+                                                    "acdb_loader_init_v2");
+        if (my_data->acdb_init == NULL) {
+            ALOGE("%s: dlsym error %s for acdb_loader_init_v2", __func__, dlerror());
+            goto acdb_init_fail;
+        }
+        platform_acdb_init(my_data);
+    }
+
+acdb_init_fail:
+
+    set_platform_defaults();
+
+    /* Initialize ACDB and PCM ID's */
+    platform_info_init(PLATFORM_INFO_XML_PATH, my_data);
+
+
+    /* Read one time ssr property */
+    audio_extn_spkr_prot_init(adev);
+
+    return my_data;
+}
+
+void platform_deinit(void *platform)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+
+    int32_t dev;
+    struct operator_info *info_item;
+    struct operator_specific_device *device_item;
+    struct listnode *node;
+
+    hw_info_deinit(my_data->hw_info);
+
+    for (dev = 0; dev < SND_DEVICE_MAX; dev++) {
+        if (backend_table[dev]) {
+            free(backend_table[dev]);
+            backend_table[dev]= NULL;
+        }
+        if (operator_specific_device_table[dev]) {
+            while (!list_empty(operator_specific_device_table[dev])) {
+                node = list_head(operator_specific_device_table[dev]);
+                list_remove(node);
+                device_item = node_to_item(node, struct operator_specific_device, list);
+                free(device_item->operator);
+                free(device_item->mixer_path);
+                free(device_item);
+            }
+            free(operator_specific_device_table[dev]);
+        }
+    }
+
+    while (!list_empty(&operator_info_list)) {
+        node = list_head(&operator_info_list);
+        list_remove(node);
+        info_item = node_to_item(node, struct operator_info, list);
+        free(info_item->name);
+        free(info_item->mccmnc);
+        free(info_item);
+    }
+
+    free(platform);
+}
+
+const char *platform_get_snd_device_name(snd_device_t snd_device)
+{
+    if (snd_device >= SND_DEVICE_MIN && snd_device < SND_DEVICE_MAX) {
+        if (operator_specific_device_table[snd_device] != NULL) {
+            return get_operator_specific_device_mixer_path(snd_device);
+        }
+        return device_table[snd_device];
+    } else
+        return "none";
+}
+
+int platform_get_snd_device_name_extn(void *platform, snd_device_t snd_device,
+                                      char *device_name)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+
+    if (platform == NULL || device_name == NULL) {
+        ALOGW("%s: something wrong, use legacy get_snd_device name", __func__);
+        strlcpy(device_name, platform_get_snd_device_name(snd_device),
+                 DEVICE_NAME_MAX_SIZE);
+    } else if (snd_device >= SND_DEVICE_MIN && snd_device < SND_DEVICE_MAX) {
+        if (operator_specific_device_table[snd_device] != NULL) {
+            strlcpy(device_name, get_operator_specific_device_mixer_path(snd_device),
+                     DEVICE_NAME_MAX_SIZE);
+        } else {
+            strlcpy(device_name, device_table[snd_device], DEVICE_NAME_MAX_SIZE);
+        }
+        hw_info_append_hw_type(my_data->hw_info, snd_device, device_name);
+    } else {
+        strlcpy(device_name, "none", DEVICE_NAME_MAX_SIZE);
+        return -EINVAL;
+    }
+
+    return 0;
+}
+
+void platform_add_backend_name(void *platform, char *mixer_path,
+                               snd_device_t snd_device)
+{
+
+    struct platform_data *my_data = (struct platform_data *)platform;
+
+    if ((snd_device < SND_DEVICE_MIN) || (snd_device >= SND_DEVICE_MAX)) {
+        ALOGE("%s: Invalid snd_device = %d", __func__, snd_device);
+        return;
+    }
+
+    const char * suffix = backend_table[snd_device];
+
+    if (suffix != NULL) {
+        strlcat(mixer_path, " ", MIXER_PATH_MAX_LENGTH);
+        strlcat(mixer_path, suffix, MIXER_PATH_MAX_LENGTH);
+    }
+}
+
+bool platform_check_backends_match(snd_device_t snd_device1, snd_device_t snd_device2)
+{
+    bool result = true;
+
+    ALOGV("%s: snd_device1 = %s, snd_device2 = %s", __func__,
+                platform_get_snd_device_name(snd_device1),
+                platform_get_snd_device_name(snd_device2));
+
+    if ((snd_device1 < SND_DEVICE_MIN) || (snd_device1 >= SND_DEVICE_MAX)) {
+        ALOGE("%s: Invalid snd_device = %s", __func__,
+                platform_get_snd_device_name(snd_device1));
+        return false;
+    }
+    if ((snd_device2 < SND_DEVICE_MIN) || (snd_device2 >= SND_DEVICE_MAX)) {
+        ALOGE("%s: Invalid snd_device = %s", __func__,
+                platform_get_snd_device_name(snd_device2));
+        return false;
+    }
+    const char * be_itf1 = hw_interface_table[snd_device1];
+    const char * be_itf2 = hw_interface_table[snd_device2];
+
+    if (NULL != be_itf1 && NULL != be_itf2) {
+        if ((NULL == strstr(be_itf2, be_itf1)) && (NULL == strstr(be_itf1, be_itf2)))
+            result = false;
+    }
+
+    ALOGV("%s: be_itf1 = %s, be_itf2 = %s, match %d", __func__, be_itf1, be_itf2, result);
+    return result;
+}
+
+int platform_get_pcm_device_id(audio_usecase_t usecase, int device_type)
+{
+    int device_id = -1;
+
+    if (device_type == PCM_PLAYBACK)
+        device_id = pcm_device_table[usecase][0];
+    else
+        device_id = pcm_device_table[usecase][1];
+    return device_id;
+}
+
+static int find_index(struct name_to_index * table, int32_t len, const char * name)
+{
+    int ret = 0;
+    int32_t i;
+
+    if (table == NULL) {
+        ALOGE("%s: table is NULL", __func__);
+        ret = -ENODEV;
+        goto done;
+    }
+
+    if (name == NULL) {
+        ALOGE("null key");
+        ret = -ENODEV;
+        goto done;
+    }
+
+    for (i=0; i < len; i++) {
+        const char* tn = table[i].name;
+        size_t len = strlen(tn);
+        if (strncmp(tn, name, len) == 0) {
+            if (strlen(name) != len) {
+                continue; // substring
+            }
+            ret = table[i].index;
+            goto done;
+        }
+    }
+    ALOGE("%s: Could not find index for name = %s",
+            __func__, name);
+    ret = -ENODEV;
+done:
+    return ret;
+}
+
+int platform_get_snd_device_index(char *device_name)
+{
+    return find_index(snd_device_name_index, SND_DEVICE_MAX, device_name);
+}
+
+int platform_get_usecase_index(const char *usecase_name)
+{
+    return find_index(usecase_name_index, AUDIO_USECASE_MAX, usecase_name);
+}
+
+void platform_add_operator_specific_device(snd_device_t snd_device,
+                                           const char *operator,
+                                           const char *mixer_path,
+                                           unsigned int acdb_id)
+{
+    struct operator_specific_device *device;
+
+    if (operator_specific_device_table[snd_device] == NULL) {
+        operator_specific_device_table[snd_device] =
+            (struct listnode *)calloc(1, sizeof(struct listnode));
+        list_init(operator_specific_device_table[snd_device]);
+    }
+
+    device = (struct operator_specific_device *)calloc(1, sizeof(struct operator_specific_device));
+
+    device->operator = strdup(operator);
+    device->mixer_path = strdup(mixer_path);
+    device->acdb_id = acdb_id;
+
+    list_add_tail(operator_specific_device_table[snd_device], &device->list);
+
+    ALOGD("%s: device[%s] -> operator[%s] mixer_path[%s] acdb_id[%d]", __func__,
+            platform_get_snd_device_name(snd_device), operator, mixer_path, acdb_id);
+
+}
+
+int platform_set_snd_device_acdb_id(snd_device_t snd_device, unsigned int acdb_id)
+{
+    int ret = 0;
+
+    if ((snd_device < SND_DEVICE_MIN) || (snd_device >= SND_DEVICE_MAX)) {
+        ALOGE("%s: Invalid snd_device = %d",
+            __func__, snd_device);
+        ret = -EINVAL;
+        goto done;
+    }
+    ALOGV("%s: acdb_device_table[%s]: old = %d new = %d", __func__,
+          platform_get_snd_device_name(snd_device), acdb_device_table[snd_device], acdb_id);
+    acdb_device_table[snd_device] = acdb_id;
+done:
+    return ret;
+}
+
+int platform_get_snd_device_acdb_id(snd_device_t snd_device)
+{
+    if ((snd_device < SND_DEVICE_MIN) || (snd_device >= SND_DEVICE_MAX)) {
+        ALOGE("%s: Invalid snd_device = %d", __func__, snd_device);
+        return -EINVAL;
+    }
+
+    if (operator_specific_device_table[snd_device] != NULL)
+        return get_operator_specific_device_acdb_id(snd_device);
+    else
+        return acdb_device_table[snd_device];
+}
+
+int platform_send_audio_calibration(void *platform, snd_device_t snd_device)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    int acdb_dev_id, acdb_dev_type;
+
+    acdb_dev_id = acdb_device_table[audio_extn_get_spkr_prot_snd_device(snd_device)];
+    if (acdb_dev_id < 0) {
+        ALOGE("%s: Could not find acdb id for device(%d)",
+              __func__, snd_device);
+        return -EINVAL;
+    }
+    if (my_data->acdb_send_audio_cal) {
+        ALOGV("%s: sending audio calibration for snd_device(%d) acdb_id(%d)",
+              __func__, snd_device, acdb_dev_id);
+        if (snd_device >= SND_DEVICE_OUT_BEGIN &&
+                snd_device < SND_DEVICE_OUT_END)
+            acdb_dev_type = ACDB_DEV_TYPE_OUT;
+        else
+            acdb_dev_type = ACDB_DEV_TYPE_IN;
+        my_data->acdb_send_audio_cal(acdb_dev_id, acdb_dev_type);
+    }
+    return 0;
+}
+
+int platform_switch_voice_call_device_pre(void *platform __unused)
+{
+    return 0;
+}
+
+int platform_switch_voice_call_enable_device_config(void *platform __unused,
+                                                    snd_device_t out_snd_device __unused,
+                                                    snd_device_t in_snd_device __unused)
+{
+    return 0;
+}
+
+int platform_switch_voice_call_device_post(void *platform,
+                                           snd_device_t out_snd_device,
+                                           snd_device_t in_snd_device)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    int acdb_rx_id, acdb_tx_id;
+
+    if (my_data->acdb_send_voice_cal == NULL) {
+        ALOGE("%s: dlsym error for acdb_send_voice_call", __func__);
+    } else {
+        if (out_snd_device == SND_DEVICE_OUT_VOICE_SPEAKER &&
+            audio_extn_spkr_prot_is_enabled())
+            out_snd_device = SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED;
+
+        acdb_rx_id = platform_get_snd_device_acdb_id(out_snd_device);
+        acdb_tx_id = platform_get_snd_device_acdb_id(in_snd_device);
+
+        if (acdb_rx_id > 0 && acdb_tx_id > 0)
+            my_data->acdb_send_voice_cal(acdb_rx_id, acdb_tx_id);
+        else
+            ALOGE("%s: Incorrect ACDB IDs (rx: %d tx: %d)", __func__,
+                  acdb_rx_id, acdb_tx_id);
+    }
+
+    return 0;
+}
+
+int platform_switch_voice_call_usecase_route_post(void *platform __unused,
+                                                  snd_device_t out_snd_device __unused,
+                                                  snd_device_t in_snd_device __unused)
+{
+    return 0;
+}
+
+int platform_start_voice_call(void *platform __unused, uint32_t vsid __unused)
+{
+    return 0;
+}
+
+int platform_stop_voice_call(void *platform __unused, uint32_t vsid __unused)
+{
+    return 0;
+}
+
+int platform_get_sample_rate(void *platform __unused, uint32_t *rate __unused)
+{
+    return 0;
+}
+
+void platform_set_speaker_gain_in_combo(struct audio_device *adev __unused,
+                                        snd_device_t snd_device __unused,
+                                        bool enable __unused)
+{
+    return;
+}
+
+int platform_set_voice_volume(void *platform, int volume)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    struct mixer_ctl *ctl;
+    const char *mixer_ctl_name = "Voice Rx Gain";
+    int vol_index = 0, ret = 0;
+    uint32_t set_values[ ] = {0,
+                              ALL_SESSION_VSID,
+                              DEFAULT_VOLUME_RAMP_DURATION_MS};
+
+    // Voice volume levels are mapped to adsp volume levels as follows.
+    // 100 -> 5, 80 -> 4, 60 -> 3, 40 -> 2, 20 -> 1  0 -> 0
+    // But this values don't changed in kernel. So, below change is need.
+    vol_index = (int)percent_to_index(volume, MIN_VOL_INDEX, MAX_VOL_INDEX);
+    set_values[0] = vol_index;
+
+    ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+    if (!ctl) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s",
+              __func__, mixer_ctl_name);
+        return -EINVAL;
+    }
+    ALOGV("Setting voice volume index: %d", set_values[0]);
+    ret = mixer_ctl_set_array(ctl, set_values, ARRAY_SIZE(set_values));
+
+    return ret;
+}
+
+int platform_set_mic_mute(void *platform, bool state)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    struct mixer_ctl *ctl;
+    const char *mixer_ctl_name = "Voice Tx Mute";
+    int ret = 0;
+    uint32_t set_values[ ] = {0,
+                              ALL_SESSION_VSID,
+                              DEFAULT_MUTE_RAMP_DURATION_MS};
+
+    set_values[0] = state;
+    ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+    if (!ctl) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s",
+              __func__, mixer_ctl_name);
+        return -EINVAL;
+    }
+    ALOGV("Setting voice mute state: %d", state);
+    ret = mixer_ctl_set_array(ctl, set_values, ARRAY_SIZE(set_values));
+    return ret;
+}
+
+int platform_set_device_mute(void *platform, bool state, char *dir)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    struct mixer_ctl *ctl;
+    char *mixer_ctl_name = NULL;
+    int ret = 0;
+    uint32_t set_values[ ] = {0,
+                              ALL_SESSION_VSID,
+                              0};
+    if(dir == NULL) {
+        ALOGE("%s: Invalid direction:%s", __func__, dir);
+        return -EINVAL;
+    }
+
+    if (!strncmp("rx", dir, sizeof("rx"))) {
+        mixer_ctl_name = "Voice Rx Device Mute";
+    } else if (!strncmp("tx", dir, sizeof("tx"))) {
+        mixer_ctl_name = "Voice Tx Device Mute";
+    } else {
+        return -EINVAL;
+    }
+
+    set_values[0] = state;
+    ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+    if (!ctl) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s",
+              __func__, mixer_ctl_name);
+        return -EINVAL;
+    }
+
+    ALOGV("%s: Setting device mute state: %d, mixer ctrl:%s",
+          __func__,state, mixer_ctl_name);
+    mixer_ctl_set_array(ctl, set_values, ARRAY_SIZE(set_values));
+
+    return ret;
+}
+
+bool platform_can_split_snd_device(snd_device_t snd_device,
+                                   int *num_devices,
+                                   snd_device_t *new_snd_devices)
+{
+    bool status = false;
+
+    if (NULL == num_devices || NULL == new_snd_devices) {
+        ALOGE("%s: NULL pointer ..", __func__);
+        return false;
+    }
+
+    /*
+     * If wired headset/headphones/line devices share the same backend
+     * with speaker/earpiece this routine returns false.
+     */
+    if (snd_device == SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES &&
+        !platform_check_backends_match(SND_DEVICE_OUT_SPEAKER, SND_DEVICE_OUT_HEADPHONES)) {
+        *num_devices = 2;
+        new_snd_devices[0] = SND_DEVICE_OUT_SPEAKER;
+        new_snd_devices[1] = SND_DEVICE_OUT_HEADPHONES;
+        status = true;
+    } else if (snd_device == SND_DEVICE_OUT_SPEAKER_AND_LINE &&
+               !platform_check_backends_match(SND_DEVICE_OUT_SPEAKER, SND_DEVICE_OUT_LINE)) {
+        *num_devices = 2;
+        new_snd_devices[0] = SND_DEVICE_OUT_SPEAKER;
+        new_snd_devices[1] = SND_DEVICE_OUT_LINE;
+        status = true;
+    }
+    return status;
+}
+
+snd_device_t platform_get_output_snd_device(void *platform, audio_devices_t devices)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    audio_mode_t mode = adev->mode;
+    snd_device_t snd_device = SND_DEVICE_NONE;
+
+    audio_channel_mask_t channel_mask = (adev->active_input == NULL) ?
+                                AUDIO_CHANNEL_IN_MONO : adev->active_input->channel_mask;
+    int channel_count = popcount(channel_mask);
+
+    ALOGV("%s: enter: output devices(%#x)", __func__, devices);
+    if (devices == AUDIO_DEVICE_NONE ||
+        devices & AUDIO_DEVICE_BIT_IN) {
+        ALOGV("%s: Invalid output devices (%#x)", __func__, devices);
+        goto exit;
+    }
+
+    if (popcount(devices) == 2) {
+        if (devices == (AUDIO_DEVICE_OUT_WIRED_HEADPHONE |
+                        AUDIO_DEVICE_OUT_SPEAKER)) {
+            snd_device = SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES;
+        } else if (devices == (AUDIO_DEVICE_OUT_LINE |
+                               AUDIO_DEVICE_OUT_SPEAKER)) {
+                snd_device = SND_DEVICE_OUT_SPEAKER_AND_LINE;
+        } else if (devices == (AUDIO_DEVICE_OUT_WIRED_HEADSET |
+                               AUDIO_DEVICE_OUT_SPEAKER)) {
+            snd_device = SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES;
+        } else if (devices == (AUDIO_DEVICE_OUT_AUX_DIGITAL |
+                               AUDIO_DEVICE_OUT_SPEAKER)) {
+            snd_device = SND_DEVICE_OUT_SPEAKER_AND_HDMI;
+        } else if (devices == (AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET |
+                               AUDIO_DEVICE_OUT_SPEAKER)) {
+            snd_device = SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET;
+        } else {
+            ALOGE("%s: Invalid combo device(%#x)", __func__, devices);
+            goto exit;
+        }
+        if (snd_device != SND_DEVICE_NONE) {
+            goto exit;
+        }
+    }
+
+    if (popcount(devices) != 1) {
+        ALOGE("%s: Invalid output devices(%#x)", __func__, devices);
+        goto exit;
+    }
+
+    if (mode == AUDIO_MODE_IN_CALL) {
+        if (devices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
+            devices & AUDIO_DEVICE_OUT_WIRED_HEADSET ||
+            devices & AUDIO_DEVICE_OUT_LINE) {
+            if (adev->voice.tty_mode != TTY_MODE_OFF) {
+                switch (adev->voice.tty_mode) {
+                case TTY_MODE_FULL:
+                    snd_device = SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES;
+                    break;
+                case TTY_MODE_VCO:
+                    snd_device = SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES;
+                    break;
+                case TTY_MODE_HCO:
+                    snd_device = SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET;
+                    break;
+                default:
+                    ALOGE("%s: Invalid TTY mode (%#x)",
+                          __func__, adev->voice.tty_mode);
+                }
+            } else if (devices & AUDIO_DEVICE_OUT_LINE) {
+                snd_device = SND_DEVICE_OUT_VOICE_LINE;
+            } else {
+                snd_device = SND_DEVICE_OUT_VOICE_HEADPHONES;
+            }
+        } else if (devices & AUDIO_DEVICE_OUT_ALL_SCO) {
+            if (adev->bt_wb_speech_enabled)
+                snd_device = SND_DEVICE_OUT_BT_SCO_WB;
+            else
+                snd_device = SND_DEVICE_OUT_BT_SCO;
+        } else if (devices & AUDIO_DEVICE_OUT_SPEAKER) {
+                    snd_device = SND_DEVICE_OUT_VOICE_SPEAKER;
+        } else if (devices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET ||
+                   devices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET) {
+            snd_device = SND_DEVICE_OUT_USB_HEADSET;
+        } else if (devices & AUDIO_DEVICE_OUT_EARPIECE) {
+                snd_device = SND_DEVICE_OUT_VOICE_HANDSET;
+        } else if (devices & AUDIO_DEVICE_OUT_TELEPHONY_TX)
+            snd_device = SND_DEVICE_OUT_VOICE_TX;
+
+        if (snd_device != SND_DEVICE_NONE) {
+            goto exit;
+        }
+    }
+
+    if (devices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
+        devices & AUDIO_DEVICE_OUT_WIRED_HEADSET) {
+                snd_device = SND_DEVICE_OUT_HEADPHONES;
+    } else if (devices & AUDIO_DEVICE_OUT_LINE) {
+        snd_device = SND_DEVICE_OUT_LINE;
+    } else if (devices & AUDIO_DEVICE_OUT_SPEAKER) {
+        if (my_data->speaker_lr_swap)
+            snd_device = SND_DEVICE_OUT_SPEAKER_REVERSE;
+        else
+            snd_device = SND_DEVICE_OUT_SPEAKER;
+    } else if (devices & AUDIO_DEVICE_OUT_ALL_SCO) {
+        if (adev->bt_wb_speech_enabled)
+            snd_device = SND_DEVICE_OUT_BT_SCO_WB;
+        else
+            snd_device = SND_DEVICE_OUT_BT_SCO;
+    } else if (devices & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
+        snd_device = SND_DEVICE_OUT_HDMI ;
+    } else if (devices & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET ||
+               devices & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET) {
+        snd_device = SND_DEVICE_OUT_USB_HEADSET;
+    } else if (devices & AUDIO_DEVICE_OUT_EARPIECE) {
+        snd_device = SND_DEVICE_OUT_HANDSET;
+    } else if (devices & AUDIO_DEVICE_OUT_PROXY) {
+        snd_device = SND_DEVICE_OUT_AFE_PROXY;
+    } else {
+        ALOGE("%s: Unknown device(s) %#x", __func__, devices);
+    }
+exit:
+    ALOGV("%s: exit: snd_device(%s)", __func__, device_table[snd_device]);
+    return snd_device;
+}
+
+snd_device_t platform_get_input_snd_device(void *platform, audio_devices_t out_device)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    audio_source_t  source = (adev->active_input == NULL) ?
+                                AUDIO_SOURCE_DEFAULT : adev->active_input->source;
+
+    audio_mode_t    mode   = adev->mode;
+    audio_devices_t in_device = ((adev->active_input == NULL) ?
+                                    AUDIO_DEVICE_NONE : adev->active_input->device)
+                                & ~AUDIO_DEVICE_BIT_IN;
+    audio_channel_mask_t channel_mask = (adev->active_input == NULL) ?
+                                AUDIO_CHANNEL_IN_MONO : adev->active_input->channel_mask;
+    snd_device_t snd_device = SND_DEVICE_NONE;
+    int channel_count = popcount(channel_mask);
+
+    ALOGV("%s: enter: out_device(%#x) in_device(%#x)",
+          __func__, out_device, in_device);
+
+    if ((out_device != AUDIO_DEVICE_NONE) && ((mode == AUDIO_MODE_IN_CALL) ||
+        audio_extn_hfp_is_active(adev))) {
+        if (adev->voice.tty_mode != TTY_MODE_OFF) {
+            if (out_device & AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
+                out_device & AUDIO_DEVICE_OUT_WIRED_HEADSET ||
+                out_device & AUDIO_DEVICE_OUT_LINE) {
+                switch (adev->voice.tty_mode) {
+                case TTY_MODE_FULL:
+                    snd_device = SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC;
+                    break;
+                case TTY_MODE_VCO:
+                    snd_device = SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC;
+                    break;
+                case TTY_MODE_HCO:
+                    snd_device = SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC;
+                    break;
+                default:
+                    ALOGE("%s: Invalid TTY mode (%#x)",
+                          __func__, adev->voice.tty_mode);
+                }
+                goto exit;
+            }
+        }
+        if (out_device & AUDIO_DEVICE_OUT_EARPIECE ||
+            out_device & AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
+            out_device & AUDIO_DEVICE_OUT_LINE) {
+            if (my_data->fluence_type == FLUENCE_NONE ||
+                my_data->fluence_in_voice_call == false) {
+                snd_device = SND_DEVICE_IN_HANDSET_MIC;
+                if (audio_extn_hfp_is_active(adev))
+                    platform_set_echo_reference(adev, true, out_device);
+            } else {
+                snd_device = SND_DEVICE_IN_VOICE_DMIC;
+                adev->acdb_settings |= DMIC_FLAG;
+            }
+        } else if (out_device & AUDIO_DEVICE_OUT_WIRED_HEADSET) {
+            snd_device = SND_DEVICE_IN_VOICE_HEADSET_MIC;
+            if (audio_extn_hfp_is_active(adev))
+                platform_set_echo_reference(adev, true, out_device);
+        } else if (out_device & AUDIO_DEVICE_OUT_ALL_SCO) {
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
+        } else if (out_device & AUDIO_DEVICE_OUT_SPEAKER) {
+            if (my_data->fluence_type != FLUENCE_NONE &&
+                my_data->fluence_in_voice_call &&
+                my_data->fluence_in_spkr_mode) {
+                    if(my_data->fluence_type & FLUENCE_QUAD_MIC) {
+                       adev->acdb_settings |= QMIC_FLAG;
+                       snd_device = SND_DEVICE_IN_VOICE_SPEAKER_QMIC;
+                    } else {
+                       adev->acdb_settings |= DMIC_FLAG;
+                       if (my_data->fluence_mode == FLUENCE_BROADSIDE)
+                           snd_device = SND_DEVICE_IN_VOICE_SPEAKER_DMIC_BROADSIDE;
+                       else
+                           snd_device = SND_DEVICE_IN_VOICE_SPEAKER_DMIC;
+                    }
+            } else {
+                snd_device = SND_DEVICE_IN_VOICE_SPEAKER_MIC;
+                if (audio_extn_hfp_is_active(adev))
+                    platform_set_echo_reference(adev, true, out_device);
+            }
+        } else if (out_device & AUDIO_DEVICE_OUT_TELEPHONY_TX)
+            snd_device = SND_DEVICE_IN_VOICE_RX;
+    } else if (source == AUDIO_SOURCE_CAMCORDER) {
+        if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC ||
+            in_device & AUDIO_DEVICE_IN_BACK_MIC) {
+            if (my_data->fluence_type & FLUENCE_DUAL_MIC &&
+                channel_count == 2)
+                snd_device = SND_DEVICE_IN_HANDSET_STEREO_DMIC;
+            else
+                snd_device = SND_DEVICE_IN_CAMCORDER_MIC;
+        }
+    } else if (source == AUDIO_SOURCE_VOICE_RECOGNITION) {
+        if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC) {
+            if (channel_count == 2) {
+                snd_device = SND_DEVICE_IN_VOICE_REC_DMIC_STEREO;
+                adev->acdb_settings |= DMIC_FLAG;
+            } else if (adev->active_input->enable_ns)
+                snd_device = SND_DEVICE_IN_VOICE_REC_MIC_NS;
+            else if (my_data->fluence_type != FLUENCE_NONE &&
+                     my_data->fluence_in_voice_rec) {
+                snd_device = SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE;
+                adev->acdb_settings |= DMIC_FLAG;
+            } else {
+                snd_device = SND_DEVICE_IN_VOICE_REC_MIC;
+            }
+        }
+    } else if ((source == AUDIO_SOURCE_VOICE_COMMUNICATION) ||
+              (mode == AUDIO_MODE_IN_COMMUNICATION)) {
+        if (out_device & AUDIO_DEVICE_OUT_SPEAKER)
+            in_device = AUDIO_DEVICE_IN_BACK_MIC;
+        if (adev->active_input) {
+            if (my_data->fluence_type != FLUENCE_NONE &&
+                adev->active_input->enable_aec &&
+                adev->active_input->enable_ns) {
+                if (in_device & AUDIO_DEVICE_IN_BACK_MIC) {
+                    if (my_data->fluence_in_spkr_mode) {
+                        if (my_data->fluence_type & FLUENCE_QUAD_MIC) {
+                            snd_device = SND_DEVICE_IN_SPEAKER_QMIC_AEC_NS;
+                        } else if (my_data->fluence_type & FLUENCE_DUAL_MIC) {
+                            if (my_data->fluence_mode == FLUENCE_BROADSIDE)
+                                snd_device = SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS_BROADSIDE;
+                            else
+                                snd_device = SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS;
+                        }
+                        adev->acdb_settings |= DMIC_FLAG;
+                    } else
+                        snd_device = SND_DEVICE_IN_SPEAKER_MIC_AEC_NS;
+                } else if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC) {
+                    if (my_data->fluence_type & FLUENCE_DUAL_MIC) {
+                        snd_device = SND_DEVICE_IN_HANDSET_DMIC_AEC_NS;
+                        adev->acdb_settings |= DMIC_FLAG;
+                    } else
+                        snd_device = SND_DEVICE_IN_HANDSET_MIC_AEC_NS;
+                } else if (in_device & AUDIO_DEVICE_IN_WIRED_HEADSET) {
+                    snd_device = SND_DEVICE_IN_HEADSET_MIC_FLUENCE;
+                }
+                platform_set_echo_reference(adev, true, out_device);
+            } else if (my_data->fluence_type != FLUENCE_NONE &&
+                       adev->active_input->enable_aec) {
+                if (in_device & AUDIO_DEVICE_IN_BACK_MIC) {
+                    if (my_data->fluence_in_spkr_mode) {
+                        if (my_data->fluence_type & FLUENCE_QUAD_MIC) {
+                            snd_device = SND_DEVICE_IN_SPEAKER_QMIC_AEC;
+                        } else if (my_data->fluence_type & FLUENCE_DUAL_MIC) {
+                            if (my_data->fluence_mode == FLUENCE_BROADSIDE)
+                                snd_device = SND_DEVICE_IN_SPEAKER_DMIC_AEC_BROADSIDE;
+                            else
+                                snd_device = SND_DEVICE_IN_SPEAKER_DMIC_AEC;
+                        }
+                        adev->acdb_settings |= DMIC_FLAG;
+                    } else
+                        snd_device = SND_DEVICE_IN_SPEAKER_MIC_AEC;
+                } else if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC) {
+                    if (my_data->fluence_type & FLUENCE_DUAL_MIC) {
+                        snd_device = SND_DEVICE_IN_HANDSET_DMIC_AEC;
+                        adev->acdb_settings |= DMIC_FLAG;
+                    } else
+                        snd_device = SND_DEVICE_IN_HANDSET_MIC_AEC;
+                } else if (in_device & AUDIO_DEVICE_IN_WIRED_HEADSET) {
+                    snd_device = SND_DEVICE_IN_HEADSET_MIC_FLUENCE;
+                }
+                platform_set_echo_reference(adev, true, out_device);
+            } else if (my_data->fluence_type != FLUENCE_NONE &&
+                       adev->active_input->enable_ns) {
+                if (in_device & AUDIO_DEVICE_IN_BACK_MIC) {
+                    if (my_data->fluence_in_spkr_mode) {
+                        if (my_data->fluence_type & FLUENCE_QUAD_MIC) {
+                            snd_device = SND_DEVICE_IN_SPEAKER_QMIC_NS;
+                        } else if (my_data->fluence_type & FLUENCE_DUAL_MIC) {
+                            if (my_data->fluence_mode == FLUENCE_BROADSIDE)
+                                snd_device = SND_DEVICE_IN_SPEAKER_DMIC_NS_BROADSIDE;
+                            else
+                                snd_device = SND_DEVICE_IN_SPEAKER_DMIC_NS;
+                        }
+                        adev->acdb_settings |= DMIC_FLAG;
+                    } else
+                        snd_device = SND_DEVICE_IN_SPEAKER_MIC_NS;
+                } else if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC) {
+                    if (my_data->fluence_type & FLUENCE_DUAL_MIC) {
+                        snd_device = SND_DEVICE_IN_HANDSET_DMIC_NS;
+                        adev->acdb_settings |= DMIC_FLAG;
+                    } else
+                        snd_device = SND_DEVICE_IN_HANDSET_MIC_NS;
+                } else if (in_device & AUDIO_DEVICE_IN_WIRED_HEADSET) {
+                    snd_device = SND_DEVICE_IN_HEADSET_MIC_FLUENCE;
+                }
+                platform_set_echo_reference(adev, false, out_device);
+            } else
+                platform_set_echo_reference(adev, false, out_device);
+        }
+    } else if (source == AUDIO_SOURCE_FM_TUNER) {
+        snd_device = SND_DEVICE_IN_CAPTURE_FM;
+    } else if (source == AUDIO_SOURCE_DEFAULT) {
+        goto exit;
+    }
+
+
+    if (snd_device != SND_DEVICE_NONE) {
+        goto exit;
+    }
+
+    if (in_device != AUDIO_DEVICE_NONE &&
+            !(in_device & AUDIO_DEVICE_IN_VOICE_CALL) &&
+            !(in_device & AUDIO_DEVICE_IN_COMMUNICATION)) {
+        if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC) {
+            if (my_data->fluence_type & (FLUENCE_DUAL_MIC | FLUENCE_QUAD_MIC) &&
+                    channel_count == 2)
+                snd_device = SND_DEVICE_IN_HANDSET_STEREO_DMIC;
+            else
+                snd_device = SND_DEVICE_IN_HANDSET_MIC;
+        } else if (in_device & AUDIO_DEVICE_IN_BACK_MIC) {
+            snd_device = SND_DEVICE_IN_SPEAKER_MIC;
+        } else if (in_device & AUDIO_DEVICE_IN_WIRED_HEADSET) {
+            snd_device = SND_DEVICE_IN_HEADSET_MIC;
+        } else if (in_device & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET) {
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
+        } else if (in_device & AUDIO_DEVICE_IN_AUX_DIGITAL) {
+            snd_device = SND_DEVICE_IN_HDMI_MIC;
+        } else if (in_device & AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET ||
+                   in_device & AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET) {
+            snd_device = SND_DEVICE_IN_USB_HEADSET_MIC;
+        } else if (in_device & AUDIO_DEVICE_IN_FM_TUNER) {
+            snd_device = SND_DEVICE_IN_CAPTURE_FM;
+        } else {
+            ALOGE("%s: Unknown input device(s) %#x", __func__, in_device);
+            ALOGW("%s: Using default handset-mic", __func__);
+            snd_device = SND_DEVICE_IN_HANDSET_MIC;
+        }
+    } else {
+        if (out_device & AUDIO_DEVICE_OUT_EARPIECE) {
+            snd_device = SND_DEVICE_IN_HANDSET_MIC;
+        } else if (out_device & AUDIO_DEVICE_OUT_WIRED_HEADSET) {
+            snd_device = SND_DEVICE_IN_HEADSET_MIC;
+        } else if (out_device & AUDIO_DEVICE_OUT_SPEAKER) {
+            if (channel_count > 1)
+                snd_device = SND_DEVICE_IN_SPEAKER_STEREO_DMIC;
+            else
+                snd_device = SND_DEVICE_IN_SPEAKER_MIC;
+        } else if (out_device & AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
+                       out_device & AUDIO_DEVICE_OUT_LINE) {
+            snd_device = SND_DEVICE_IN_HANDSET_MIC;
+        } else if (out_device & AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET) {
+            if (adev->bt_wb_speech_enabled) {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_WB;
+            } else {
+                if (adev->bluetooth_nrec)
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC_NREC;
+                else
+                    snd_device = SND_DEVICE_IN_BT_SCO_MIC;
+            }
+        } else if (out_device & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
+            snd_device = SND_DEVICE_IN_HDMI_MIC;
+        } else if (out_device & AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET ||
+                   out_device & AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET) {
+            snd_device = SND_DEVICE_IN_USB_HEADSET_MIC;
+        } else {
+            ALOGE("%s: Unknown output device(s) %#x", __func__, out_device);
+            ALOGW("%s: Using default handset-mic", __func__);
+            snd_device = SND_DEVICE_IN_HANDSET_MIC;
+        }
+    }
+exit:
+    ALOGV("%s: exit: in_snd_device(%s)", __func__, device_table[snd_device]);
+    return snd_device;
+}
+
+int platform_set_hdmi_channels(void *platform,  int channel_count)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    struct mixer_ctl *ctl;
+    const char *channel_cnt_str = NULL;
+    const char *mixer_ctl_name = "HDMI_RX Channels";
+    switch (channel_count) {
+    case 8:
+        channel_cnt_str = "Eight"; break;
+    case 7:
+        channel_cnt_str = "Seven"; break;
+    case 6:
+        channel_cnt_str = "Six"; break;
+    case 5:
+        channel_cnt_str = "Five"; break;
+    case 4:
+        channel_cnt_str = "Four"; break;
+    case 3:
+        channel_cnt_str = "Three"; break;
+    default:
+        channel_cnt_str = "Two"; break;
+    }
+    ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+    if (!ctl) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s",
+              __func__, mixer_ctl_name);
+        return -EINVAL;
+    }
+    ALOGV("HDMI channel count: %s", channel_cnt_str);
+    mixer_ctl_set_enum_by_string(ctl, channel_cnt_str);
+    return 0;
+}
+
+int platform_edid_get_max_channels(void *platform)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    char block[MAX_SAD_BLOCKS * SAD_BLOCK_SIZE];
+    char *sad = block;
+    int num_audio_blocks;
+    int channel_count;
+    int max_channels = 0;
+    int i, ret, count;
+
+    struct mixer_ctl *ctl;
+
+    ctl = mixer_get_ctl_by_name(adev->mixer, AUDIO_DATA_BLOCK_MIXER_CTL);
+    if (!ctl) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s",
+              __func__, AUDIO_DATA_BLOCK_MIXER_CTL);
+        return 0;
+    }
+
+    mixer_ctl_update(ctl);
+
+    count = mixer_ctl_get_num_values(ctl);
+
+    /* Read SAD blocks, clamping the maximum size for safety */
+    if (count > (int)sizeof(block))
+        count = (int)sizeof(block);
+
+    ret = mixer_ctl_get_array(ctl, block, count);
+    if (ret != 0) {
+        ALOGE("%s: mixer_ctl_get_array() failed to get EDID info", __func__);
+        return 0;
+    }
+
+    /* Calculate the number of SAD blocks */
+    num_audio_blocks = count / SAD_BLOCK_SIZE;
+
+    for (i = 0; i < num_audio_blocks; i++) {
+        /* Only consider LPCM blocks */
+        if ((sad[0] >> 3) != EDID_FORMAT_LPCM) {
+            sad += 3;
+            continue;
+        }
+
+        channel_count = (sad[0] & 0x7) + 1;
+        if (channel_count > max_channels)
+            max_channels = channel_count;
+
+        /* Advance to next block */
+        sad += 3;
+    }
+
+    return max_channels;
+}
+
+int platform_set_incall_recording_session_id(void *platform,
+                                             uint32_t session_id,
+                                             int rec_mode __unused)
+{
+    int ret = 0;
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct audio_device *adev = my_data->adev;
+    struct mixer_ctl *ctl;
+    const char *mixer_ctl_name = "Voc VSID";
+    int num_ctl_values;
+    int i;
+
+    ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
+    if (!ctl) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s",
+              __func__, mixer_ctl_name);
+        ret = -EINVAL;
+    } else {
+        num_ctl_values = mixer_ctl_get_num_values(ctl);
+        for (i = 0; i < num_ctl_values; i++) {
+            if (mixer_ctl_set_value(ctl, i, session_id)) {
+                ALOGV("Error: invalid session_id: %x", session_id);
+                ret = -EINVAL;
+                break;
+            }
+        }
+    }
+    return ret;
+}
+
+int platform_stop_incall_recording_usecase(void *platform __unused)
+{
+    return 0;
+}
+
+int platform_start_incall_music_usecase(void *platform __unused)
+{
+    return 0;
+}
+
+int platform_stop_incall_music_usecase(void *platform __unused)
+{
+    return 0;
+}
+
+int platform_set_parameters(void *platform, struct str_parms *parms)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    char value[128];
+    char *kv_pairs = str_parms_to_str(parms);
+    int ret = 0, err;
+
+    if (kv_pairs == NULL) {
+        ret = -EINVAL;
+        ALOGE("%s: key-value pair is NULL",__func__);
+        goto done;
+    }
+
+    ALOGV("%s: enter: %s", __func__, kv_pairs);
+
+    err = str_parms_get_str(parms, PLATFORM_CONFIG_KEY_OPERATOR_INFO,
+                            value, sizeof(value));
+    if (err >= 0) {
+        struct operator_info *info;
+        char *str = value;
+        char *name;
+
+        str_parms_del(parms, PLATFORM_CONFIG_KEY_OPERATOR_INFO);
+        info = (struct operator_info *)calloc(1, sizeof(struct operator_info));
+        name = strtok(str, ";");
+        info->name = strdup(name);
+        info->mccmnc = strdup(str + strlen(name) + 1);
+
+        list_add_tail(&operator_info_list, &info->list);
+        ALOGV("%s: add operator[%s] mccmnc[%s]", __func__, info->name, info->mccmnc);
+    }
+done:
+    ALOGV("%s: exit with code(%d)", __func__, ret);
+    if (kv_pairs != NULL)
+        free(kv_pairs);
+
+    return ret;
+}
+
+/* Delay in Us */
+int64_t platform_render_latency(audio_usecase_t usecase)
+{
+    switch (usecase) {
+        case USECASE_AUDIO_PLAYBACK_DEEP_BUFFER:
+            return DEEP_BUFFER_PLATFORM_DELAY;
+        case USECASE_AUDIO_PLAYBACK_LOW_LATENCY:
+            return LOW_LATENCY_PLATFORM_DELAY;
+        default:
+            return 0;
+    }
+}
+
+int platform_set_snd_device_backend(snd_device_t device, const char *backend, const char * hw_interface)
+{
+    int ret = 0;
+
+    if ((device < SND_DEVICE_MIN) || (device >= SND_DEVICE_MAX)) {
+        ALOGE("%s: Invalid snd_device = %d",
+            __func__, device);
+        ret = -EINVAL;
+        goto done;
+    }
+
+    ALOGV("%s: backend_tag_table[%s]: old = %s new = %s", __func__,
+          platform_get_snd_device_name(device),
+          backend_table[device] != NULL ? backend_table[device]: "null", backend);
+    if (backend_table[device]) {
+        free(backend_table[device]);
+    }
+    backend_table[device] = strdup(backend);
+
+    if (hw_interface != NULL) {
+        if (hw_interface_table[device])
+            free(hw_interface_table[device]);
+        ALOGV("%s: hw_interface_table[%d] = %s", __func__, device, hw_interface);
+        hw_interface_table[device] = strdup(hw_interface);
+    }
+done:
+    return ret;
+}
+
+int platform_set_usecase_pcm_id(audio_usecase_t usecase, int32_t type, int32_t pcm_id)
+{
+    int ret = 0;
+    if ((usecase <= USECASE_INVALID) || (usecase >= AUDIO_USECASE_MAX)) {
+        ALOGE("%s: invalid usecase case idx %d", __func__, usecase);
+        ret = -EINVAL;
+        goto done;
+    }
+
+    if ((type != 0) && (type != 1)) {
+        ALOGE("%s: invalid usecase type", __func__);
+        ret = -EINVAL;
+    }
+    pcm_device_table[usecase][type] = pcm_id;
+done:
+    return ret;
+}
+
+#define DEFAULT_NOMINAL_SPEAKER_GAIN 20
+int ramp_speaker_gain(struct audio_device *adev, bool ramp_up, int target_ramp_up_gain) {
+    // backup_gain: gain to try to set in case of an error during ramp
+    int start_gain, end_gain, step, backup_gain, i;
+    bool error = false;
+    const struct mixer_ctl *ctl;
+    const char *mixer_ctl_name_gain_left = "Left Speaker Gain";
+    const char *mixer_ctl_name_gain_right = "Right Speaker Gain";
+    struct mixer_ctl *ctl_left = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name_gain_left);
+    struct mixer_ctl *ctl_right = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name_gain_right);
+    if (!ctl_left || !ctl_right) {
+        ALOGE("%s: Could not get ctl for mixer cmd - %s or %s, not applying speaker gain ramp",
+                      __func__, mixer_ctl_name_gain_left, mixer_ctl_name_gain_right);
+        return -EINVAL;
+    } else if ((mixer_ctl_get_num_values(ctl_left) != 1)
+            || (mixer_ctl_get_num_values(ctl_right) != 1)) {
+        ALOGE("%s: Unexpected num values for mixer cmd - %s or %s, not applying speaker gain ramp",
+                              __func__, mixer_ctl_name_gain_left, mixer_ctl_name_gain_right);
+        return -EINVAL;
+    }
+    if (ramp_up) {
+        start_gain = 0;
+        end_gain = target_ramp_up_gain > 0 ? target_ramp_up_gain : DEFAULT_NOMINAL_SPEAKER_GAIN;
+        step = +1;
+        backup_gain = end_gain;
+    } else {
+        // using same gain on left and right
+        const int left_gain = mixer_ctl_get_value(ctl_left, 0);
+        start_gain = left_gain > 0 ? left_gain : DEFAULT_NOMINAL_SPEAKER_GAIN;
+        end_gain = 0;
+        step = -1;
+        backup_gain = start_gain;
+    }
+    for (i = start_gain ; i != (end_gain + step) ; i += step) {
+        //ALOGV("setting speaker gain to %d", i);
+        if (mixer_ctl_set_value(ctl_left, 0, i)) {
+            ALOGE("%s: error setting %s to %d during gain ramp",
+                    __func__, mixer_ctl_name_gain_left, i);
+            error = true;
+            break;
+        }
+        if (mixer_ctl_set_value(ctl_right, 0, i)) {
+            ALOGE("%s: error setting %s to %d during gain ramp",
+                    __func__, mixer_ctl_name_gain_right, i);
+            error = true;
+            break;
+        }
+        usleep(1000);
+    }
+    if (error) {
+        // an error occured during the ramp, let's still try to go back to a safe volume
+        if (mixer_ctl_set_value(ctl_left, 0, backup_gain)) {
+            ALOGE("%s: error restoring left gain to %d", __func__, backup_gain);
+        }
+        if (mixer_ctl_set_value(ctl_right, 0, backup_gain)) {
+            ALOGE("%s: error restoring right gain to %d", __func__, backup_gain);
+        }
+    }
+    return start_gain;
+}
+
+int platform_swap_lr_channels(struct audio_device *adev, bool swap_channels)
+{
+    // only update if there is active pcm playback on speaker
+    struct audio_usecase *usecase;
+    struct listnode *node;
+    struct platform_data *my_data = (struct platform_data *)adev->platform;
+
+    if (my_data->speaker_lr_swap != swap_channels) {
+        my_data->speaker_lr_swap = swap_channels;
+
+        list_for_each(node, &adev->usecase_list) {
+            usecase = node_to_item(node, struct audio_usecase, list);
+            if (usecase->type == PCM_PLAYBACK &&
+                    usecase->stream.out->devices & AUDIO_DEVICE_OUT_SPEAKER) {
+                /*
+                 * If acdb tuning is different for SPEAKER_REVERSE, it is must
+                 * to perform device switch to disable the current backend to
+                 * enable it with new acdb data.
+                 */
+                if (acdb_device_table[SND_DEVICE_OUT_SPEAKER] !=
+                    acdb_device_table[SND_DEVICE_OUT_SPEAKER_REVERSE]) {
+                    const int initial_skpr_gain = ramp_speaker_gain(adev, false /*ramp_up*/, -1);
+                    select_devices(adev, usecase->id);
+                    if (initial_skpr_gain != -EINVAL) {
+                        ramp_speaker_gain(adev, true /*ramp_up*/, initial_skpr_gain);
+                    }
+                } else {
+                    const char *mixer_path;
+                    if (swap_channels) {
+                        mixer_path = platform_get_snd_device_name(SND_DEVICE_OUT_SPEAKER_REVERSE);
+                        audio_route_apply_and_update_path(adev->audio_route, mixer_path);
+                    } else {
+                        mixer_path = platform_get_snd_device_name(SND_DEVICE_OUT_SPEAKER);
+                        audio_route_apply_and_update_path(adev->audio_route, mixer_path);
+                    }
+                }
+                break;
+            }
+        }
+    }
+    return 0;
+}
diff --git a/hal/msm8916/platform.h b/hal/msm8916/platform.h
new file mode 100644
index 0000000..a386652
--- /dev/null
+++ b/hal/msm8916/platform.h
@@ -0,0 +1,271 @@
+/*
+ *
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef QCOM_AUDIO_PLATFORM_H
+#define QCOM_AUDIO_PLATFORM_H
+
+enum {
+    FLUENCE_NONE,
+    FLUENCE_DUAL_MIC = 0x1,
+    FLUENCE_QUAD_MIC = 0x2,
+};
+
+enum {
+    FLUENCE_ENDFIRE = 0x1,
+    FLUENCE_BROADSIDE = 0x2,
+};
+
+/*
+ * Below are the devices for which is back end is same, SLIMBUS_0_RX.
+ * All these devices are handled by the internal HW codec. We can
+ * enable any one of these devices at any time. An exception here is
+ * 44.1k headphone which uses different backend. This is filtered
+ * as different hal internal device in the code but remains same
+ * as standard android device AUDIO_DEVICE_OUT_WIRED_HEADPHONE
+ * for other layers.
+ */
+#define AUDIO_DEVICE_OUT_ALL_CODEC_BACKEND \
+    (AUDIO_DEVICE_OUT_EARPIECE | AUDIO_DEVICE_OUT_SPEAKER | \
+     AUDIO_DEVICE_OUT_WIRED_HEADSET | AUDIO_DEVICE_OUT_WIRED_HEADPHONE|\
+     AUDIO_DEVICE_OUT_LINE)
+
+/* Sound devices specific to the platform
+ * The DEVICE_OUT_* and DEVICE_IN_* should be mapped to these sound
+ * devices to enable corresponding mixer paths
+ */
+enum {
+    SND_DEVICE_NONE = 0,
+
+    /* Playback devices */
+    SND_DEVICE_MIN,
+    SND_DEVICE_OUT_BEGIN = SND_DEVICE_MIN,
+    SND_DEVICE_OUT_HANDSET = SND_DEVICE_OUT_BEGIN,
+    SND_DEVICE_OUT_SPEAKER,
+    SND_DEVICE_OUT_SPEAKER_REVERSE,
+    SND_DEVICE_OUT_LINE,
+    SND_DEVICE_OUT_HEADPHONES,
+    SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES,
+    SND_DEVICE_OUT_SPEAKER_AND_LINE,
+    SND_DEVICE_OUT_VOICE_HANDSET,
+    SND_DEVICE_OUT_VOICE_HAC_HANDSET,
+    SND_DEVICE_OUT_VOICE_SPEAKER,
+    SND_DEVICE_OUT_VOICE_HEADPHONES,
+    SND_DEVICE_OUT_VOICE_LINE,
+    SND_DEVICE_OUT_HDMI,
+    SND_DEVICE_OUT_SPEAKER_AND_HDMI,
+    SND_DEVICE_OUT_BT_SCO,
+    SND_DEVICE_OUT_BT_SCO_WB,
+    SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES,
+    SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES,
+    SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET,
+    SND_DEVICE_OUT_VOICE_TX,
+    SND_DEVICE_OUT_AFE_PROXY,
+    SND_DEVICE_OUT_USB_HEADSET,
+    SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET,
+    SND_DEVICE_OUT_ANC_HEADSET,
+    SND_DEVICE_OUT_ANC_FB_HEADSET,
+    SND_DEVICE_OUT_VOICE_ANC_HEADSET,
+    SND_DEVICE_OUT_VOICE_ANC_FB_HEADSET,
+    SND_DEVICE_OUT_SPEAKER_AND_ANC_HEADSET,
+    SND_DEVICE_OUT_ANC_HANDSET,
+    SND_DEVICE_OUT_SPEAKER_PROTECTED,
+    SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED,
+    SND_DEVICE_OUT_END,
+
+    /*
+     * Note: IN_BEGIN should be same as OUT_END because total number of devices
+     * SND_DEVICES_MAX should not exceed MAX_RX + MAX_TX devices.
+     */
+    /* Capture devices */
+    SND_DEVICE_IN_BEGIN = SND_DEVICE_OUT_END,
+    SND_DEVICE_IN_HANDSET_MIC  = SND_DEVICE_IN_BEGIN,
+    SND_DEVICE_IN_HANDSET_MIC_EXTERNAL,
+    SND_DEVICE_IN_HANDSET_MIC_AEC,
+    SND_DEVICE_IN_HANDSET_MIC_NS,
+    SND_DEVICE_IN_HANDSET_MIC_AEC_NS,
+    SND_DEVICE_IN_HANDSET_DMIC,
+    SND_DEVICE_IN_HANDSET_DMIC_AEC,
+    SND_DEVICE_IN_HANDSET_DMIC_NS,
+    SND_DEVICE_IN_HANDSET_DMIC_AEC_NS,
+    SND_DEVICE_IN_SPEAKER_MIC,
+    SND_DEVICE_IN_SPEAKER_MIC_AEC,
+    SND_DEVICE_IN_SPEAKER_MIC_NS,
+    SND_DEVICE_IN_SPEAKER_MIC_AEC_NS,
+    SND_DEVICE_IN_SPEAKER_DMIC,
+    SND_DEVICE_IN_SPEAKER_DMIC_AEC,
+    SND_DEVICE_IN_SPEAKER_DMIC_NS,
+    SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS,
+    SND_DEVICE_IN_HEADSET_MIC,
+    SND_DEVICE_IN_HEADSET_MIC_FLUENCE,
+    SND_DEVICE_IN_VOICE_SPEAKER_MIC,
+    SND_DEVICE_IN_VOICE_HEADSET_MIC,
+    SND_DEVICE_IN_HDMI_MIC,
+    SND_DEVICE_IN_BT_SCO_MIC,
+    SND_DEVICE_IN_BT_SCO_MIC_NREC,
+    SND_DEVICE_IN_BT_SCO_MIC_WB,
+    SND_DEVICE_IN_BT_SCO_MIC_WB_NREC,
+    SND_DEVICE_IN_CAMCORDER_MIC,
+    SND_DEVICE_IN_VOICE_DMIC,
+    SND_DEVICE_IN_VOICE_SPEAKER_DMIC,
+    SND_DEVICE_IN_VOICE_SPEAKER_QMIC,
+    SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC,
+    SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC,
+    SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC,
+    SND_DEVICE_IN_VOICE_REC_MIC,
+    SND_DEVICE_IN_VOICE_REC_MIC_NS,
+    SND_DEVICE_IN_VOICE_REC_DMIC_STEREO,
+    SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE,
+    SND_DEVICE_IN_VOICE_RX,
+    SND_DEVICE_IN_USB_HEADSET_MIC,
+    SND_DEVICE_IN_CAPTURE_FM,
+    SND_DEVICE_IN_AANC_HANDSET_MIC,
+    SND_DEVICE_IN_QUAD_MIC,
+    SND_DEVICE_IN_HANDSET_STEREO_DMIC,
+    SND_DEVICE_IN_SPEAKER_STEREO_DMIC,
+    SND_DEVICE_IN_CAPTURE_VI_FEEDBACK,
+    SND_DEVICE_IN_VOICE_SPEAKER_DMIC_BROADSIDE,
+    SND_DEVICE_IN_SPEAKER_DMIC_BROADSIDE,
+    SND_DEVICE_IN_SPEAKER_DMIC_AEC_BROADSIDE,
+    SND_DEVICE_IN_SPEAKER_DMIC_NS_BROADSIDE,
+    SND_DEVICE_IN_SPEAKER_DMIC_AEC_NS_BROADSIDE,
+    SND_DEVICE_IN_VOICE_FLUENCE_DMIC_AANC,
+    SND_DEVICE_IN_HANDSET_QMIC,
+    SND_DEVICE_IN_SPEAKER_QMIC_AEC,
+    SND_DEVICE_IN_SPEAKER_QMIC_NS,
+    SND_DEVICE_IN_SPEAKER_QMIC_AEC_NS,
+    SND_DEVICE_IN_END,
+
+    SND_DEVICE_MAX = SND_DEVICE_IN_END,
+
+};
+
+#define DEFAULT_OUTPUT_SAMPLING_RATE 48000
+
+#define ALL_SESSION_VSID                0xFFFFFFFF
+#define DEFAULT_MUTE_RAMP_DURATION_MS   20
+#define DEFAULT_VOLUME_RAMP_DURATION_MS 20
+#define MIXER_PATH_MAX_LENGTH 100
+
+#define MAX_VOL_INDEX 5
+#define MIN_VOL_INDEX 0
+#define percent_to_index(val, min, max) \
+            ((val) * ((max) - (min)) * 0.01 + (min) + .5)
+
+/*
+ * tinyAlsa library interprets period size as number of frames
+ * one frame = channel_count * sizeof (pcm sample)
+ * so if format = 16-bit PCM and channels = Stereo, frame size = 2 ch * 2 = 4 bytes
+ * DEEP_BUFFER_OUTPUT_PERIOD_SIZE = 1024 means 1024 * 4 = 4096 bytes
+ * We should take care of returning proper size when AudioFlinger queries for
+ * the buffer size of an input/output stream
+ */
+#define DEEP_BUFFER_OUTPUT_PERIOD_SIZE 1920
+#define DEEP_BUFFER_OUTPUT_PERIOD_COUNT 2
+#define LOW_LATENCY_OUTPUT_PERIOD_SIZE 240
+#define LOW_LATENCY_OUTPUT_PERIOD_COUNT 2
+
+#define LOW_LATENCY_CAPTURE_SAMPLE_RATE 48000
+#define LOW_LATENCY_CAPTURE_PERIOD_SIZE 240
+#define LOW_LATENCY_CAPTURE_USE_CASE 1
+
+#define HDMI_MULTI_PERIOD_SIZE  336
+#define HDMI_MULTI_PERIOD_COUNT 8
+#define HDMI_MULTI_DEFAULT_CHANNEL_COUNT 6
+#define HDMI_MULTI_PERIOD_BYTES (HDMI_MULTI_PERIOD_SIZE * HDMI_MULTI_DEFAULT_CHANNEL_COUNT * 2)
+
+#define AUDIO_CAPTURE_PERIOD_DURATION_MSEC 20
+#define AUDIO_CAPTURE_PERIOD_COUNT 2
+
+#define LOW_LATENCY_CAPTURE_SAMPLE_RATE 48000
+#define LOW_LATENCY_CAPTURE_PERIOD_SIZE 240
+#define LOW_LATENCY_CAPTURE_USE_CASE 1
+
+#define DEVICE_NAME_MAX_SIZE 128
+#define HW_INFO_ARRAY_MAX_SIZE 32
+
+#define DEEP_BUFFER_PCM_DEVICE 0
+#define AUDIO_RECORD_PCM_DEVICE 0
+#define MULTIMEDIA2_PCM_DEVICE 1
+#define MULTIMEDIA3_PCM_DEVICE 4
+#define FM_PLAYBACK_PCM_DEVICE 5
+#define FM_CAPTURE_PCM_DEVICE  6
+#define HFP_PCM_RX 5
+#define HFP_SCO_RX 17
+#define HFP_ASM_RX_TX 18
+
+#define INCALL_MUSIC_UPLINK_PCM_DEVICE 1
+#define INCALL_MUSIC_UPLINK2_PCM_DEVICE 16
+#define SPKR_PROT_CALIB_RX_PCM_DEVICE 5
+#define SPKR_PROT_CALIB_TX_PCM_DEVICE 26
+#define PLAYBACK_OFFLOAD_DEVICE 9
+#define PLAYBACK_OFFLOAD_DEVICE2 24
+
+/* Define macro for Internal FM volume mixer */
+#define FM_RX_VOLUME "Internal FM RX Volume"
+
+#define LOWLATENCY_PCM_DEVICE 12
+#define EC_REF_RX "I2S_RX"
+
+#define VOICE_CALL_PCM_DEVICE 2
+#define VOICE2_CALL_PCM_DEVICE 13
+#define VOLTE_CALL_PCM_DEVICE 15
+#define QCHAT_CALL_PCM_DEVICE 26
+#define QCHAT_CALL_PCM_DEVICE_OF_EXT_CODEC 28
+#define VOWLAN_CALL_PCM_DEVICE 16
+
+#define AFE_PROXY_PLAYBACK_PCM_DEVICE 7
+#define AFE_PROXY_RECORD_PCM_DEVICE 8
+
+#define LIB_CSD_CLIENT "libcsd-client.so"
+/* CSD-CLIENT related functions */
+typedef int (*init_t)();
+typedef int (*deinit_t)();
+typedef int (*disable_device_t)();
+typedef int (*enable_device_config_t)(int, int);
+typedef int (*enable_device_t)(int, int, uint32_t);
+typedef int (*volume_t)(uint32_t, int, uint16_t);
+typedef int (*mic_mute_t)(uint32_t, int, uint16_t);
+typedef int (*slow_talk_t)(uint32_t, uint8_t);
+typedef int (*start_voice_t)(uint32_t);
+typedef int (*stop_voice_t)(uint32_t);
+typedef int (*start_playback_t)(uint32_t);
+typedef int (*stop_playback_t)(uint32_t);
+typedef int (*start_record_t)(uint32_t, int);
+typedef int (*stop_record_t)(uint32_t);
+/* CSD Client structure */
+struct csd_data {
+    void *csd_client;
+    init_t init;
+    deinit_t deinit;
+    disable_device_t disable_device;
+    enable_device_config_t enable_device_config;
+    enable_device_t enable_device;
+    volume_t volume;
+    mic_mute_t mic_mute;
+    slow_talk_t slow_talk;
+    start_voice_t start_voice;
+    stop_voice_t stop_voice;
+    start_playback_t start_playback;
+    stop_playback_t stop_playback;
+    start_record_t start_record;
+    stop_record_t stop_record;
+};
+
+#define PLATFORM_INFO_XML_PATH          "/system/etc/audio_platform_info.xml"
+#define PLATFORM_INFO_XML_BASE_STRING   "/system/etc/audio_platform_info"
+
+#endif // QCOM_AUDIO_PLATFORM_H