External Modem based Voice call support

1. Enable csd client related changes
2. PCM device id update for voice call
3. AFE loopback for both voice call rx and tx path

Change-Id: I66081f003549a244548a050c2bb13796ee6c79e4
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 3d89032..31a1e95 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -2017,7 +2017,9 @@
         !strncmp(snd_card_name, "sdx-tavil-i2s-snd-card",
                  sizeof("sdx-tavil-i2s-snd-card")) ||
         !strncmp(snd_card_name, "sda845-tavil-i2s-snd-card",
-                 sizeof("sda845-tavil-i2s-snd-card"))) {
+                 sizeof("sda845-tavil-i2s-snd-card")) ||
+        !strncmp(snd_card_name, "sa6155-adp-star-snd-card",
+                 sizeof("sa6155-adp-star-snd-card"))) {
         plat_data->is_i2s_ext_modem = true;
     }
     ALOGV("%s, is_i2s_ext_modem:%d soundcard name is %s",__func__,
@@ -2026,6 +2028,20 @@
     return plat_data->is_i2s_ext_modem;
 }
 
+static bool is_auto_snd_card(const char *snd_card_name)
+{
+    bool is_auto_snd_card = false;
+
+    if (!strncmp(snd_card_name, "sa6155-adp-star-snd-card",
+                 sizeof("sa6155-adp-star-snd-card"))) {
+        is_auto_snd_card = true;
+        ALOGV("%s : Auto snd card detected: soundcard name is %s",__func__,
+               snd_card_name);
+    }
+
+    return is_auto_snd_card;
+}
+
 static void set_platform_defaults(struct platform_data * my_data)
 {
     int32_t dev;
@@ -2923,7 +2939,8 @@
         return NULL;
     }
 
-    if (platform_is_i2s_ext_modem(snd_card_name, my_data)) {
+    if (platform_is_i2s_ext_modem(snd_card_name, my_data) &&
+        !is_auto_snd_card(snd_card_name)) {
         ALOGD("%s: Call MIXER_XML_PATH_I2S", __func__);
 
         adev->audio_route = audio_route_init(adev->snd_card,
@@ -3161,7 +3178,7 @@
 
 
     /* Initialize ACDB ID's */
-    if (my_data->is_i2s_ext_modem)
+    if (my_data->is_i2s_ext_modem && !is_auto_snd_card(snd_card_name))
         platform_info_init(PLATFORM_INFO_XML_PATH_I2S, my_data, PLATFORM);
     else if (!strncmp(snd_card_name, "sdm660-snd-card-skush",
                sizeof("sdm660-snd-card-skush")))
@@ -3360,6 +3377,7 @@
     property_get("ro.baseband", baseband, "");
     if ((!strncmp("apq8084", platform, sizeof("apq8084")) ||
         !strncmp("msm8996", platform, sizeof("msm8996")) ||
+        !strncmp("sm6150", platform, sizeof("sm6150")) ||
         !strncmp("sdx", platform, sizeof("sdx")) ||
         !strncmp("sdm845", platform, sizeof("sdm845"))) &&
         ( !strncmp("mdm", baseband, (sizeof("mdm")-1)) ||