hal: Add check for afe loopback for send app type config for HFP call

Add check for is afe loop back enabled based on platform file

Change-Id: I24b91db06769486b79a32c00bfb28f7b3ffcb445
diff --git a/hal/audio_extn/utils.c b/hal/audio_extn/utils.c
index a4d17b8..31ce934 100755
--- a/hal/audio_extn/utils.c
+++ b/hal/audio_extn/utils.c
@@ -1101,50 +1101,57 @@
         goto exit_send_app_type_cfg;
     }
 
+    /*
+     * Value of afe_loopback gets read  based on the property defined in
+     * audio_platform_info.xml. If afe loopback is set then do not execute
+     * session 1 path as app type mixer control will not be created for
+     * afe loopback
+     */
+
     if (usecase->type == PCM_HFP_CALL) {
-
-        /* config HFP session:1 playback path */
-        if (is_bus_dev_usecase) {
-            app_type = usecase->out_app_type_cfg.app_type;
-            sample_rate= usecase->out_app_type_cfg.sample_rate;
-        } else {
-            snd_device = SND_DEVICE_NONE; // use legacy behavior
-            app_type = platform_get_default_app_type_v2(adev->platform, PCM_PLAYBACK);
-            sample_rate= CODEC_BACKEND_DEFAULT_SAMPLE_RATE;
-        }
-        rc = set_stream_app_type_mixer_ctrl(adev, pcm_device_id, app_type,
-                                            acdb_dev_id, sample_rate,
-                                            PCM_PLAYBACK,
-                                            snd_device);
-        if (rc < 0)
-            goto exit_send_app_type_cfg;
-
-        /* config HFP session:1 capture path */
-        if (is_bus_dev_usecase) {
-            snd_device = usecase->in_snd_device;
-            pcm_device_id = platform_get_pcm_device_id(usecase->id, PCM_CAPTURE);
-            acdb_dev_id = platform_get_snd_device_acdb_id(snd_device);
-            if (acdb_dev_id < 0) {
-                ALOGE("%s: Couldn't get the acdb dev id", __func__);
-                rc = -EINVAL;
-                goto exit_send_app_type_cfg;
+        if (!(platform_get_is_afe_loopback_enabled(adev->platform))) {
+            /* config HFP session:1 playback path */
+            if (is_bus_dev_usecase) {
+                app_type = usecase->out_app_type_cfg.app_type;
+                sample_rate= usecase->out_app_type_cfg.sample_rate;
+            } else {
+                snd_device = SND_DEVICE_NONE; // use legacy behavior
+                app_type = platform_get_default_app_type_v2(adev->platform, PCM_PLAYBACK);
+                sample_rate= CODEC_BACKEND_DEFAULT_SAMPLE_RATE;
             }
-            app_type = usecase->in_app_type_cfg.app_type;
-            sample_rate= usecase->in_app_type_cfg.sample_rate;
-        } else {
-            snd_device = SND_DEVICE_NONE; // use legacy behavior
-            app_type = platform_get_default_app_type_v2(adev->platform, PCM_CAPTURE);
+            rc = set_stream_app_type_mixer_ctrl(adev, pcm_device_id, app_type,
+                                                acdb_dev_id, sample_rate,
+                                                PCM_PLAYBACK,
+                                                snd_device);
+            if (rc < 0)
+                goto exit_send_app_type_cfg;
+
+            /* config HFP session:1 capture path */
+            if (is_bus_dev_usecase) {
+                snd_device = usecase->in_snd_device;
+                pcm_device_id = platform_get_pcm_device_id(usecase->id, PCM_CAPTURE);
+                acdb_dev_id = platform_get_snd_device_acdb_id(snd_device);
+                if (acdb_dev_id < 0) {
+                    ALOGE("%s: Couldn't get the acdb dev id", __func__);
+                    rc = -EINVAL;
+                    goto exit_send_app_type_cfg;
+                }
+                app_type = usecase->in_app_type_cfg.app_type;
+                sample_rate= usecase->in_app_type_cfg.sample_rate;
+            } else {
+                snd_device = SND_DEVICE_NONE; // use legacy behavior
+                app_type = platform_get_default_app_type_v2(adev->platform, PCM_CAPTURE);
+            }
+            rc = set_stream_app_type_mixer_ctrl(adev, pcm_device_id, app_type,
+                                                acdb_dev_id, sample_rate,
+                                                PCM_CAPTURE,
+                                                snd_device);
+            if (rc < 0)
+                goto exit_send_app_type_cfg;
+
+            if (is_bus_dev_usecase)
+                goto exit_send_app_type_cfg;
         }
-        rc = set_stream_app_type_mixer_ctrl(adev, pcm_device_id, app_type,
-                                            acdb_dev_id, sample_rate,
-                                            PCM_CAPTURE,
-                                            snd_device);
-        if (rc < 0)
-            goto exit_send_app_type_cfg;
-
-        if (is_bus_dev_usecase)
-            goto exit_send_app_type_cfg;
-
         /* config HFP session:2 capture path */
         pcm_device_id = HFP_ASM_RX_TX;
         snd_device = usecase->in_snd_device;
@@ -1157,7 +1164,7 @@
         app_type = platform_get_default_app_type_v2(adev->platform, PCM_CAPTURE);
         rc = set_stream_app_type_mixer_ctrl(adev, pcm_device_id, app_type,
                                             acdb_dev_id, sample_rate, PCM_CAPTURE,
-                                            SND_DEVICE_NONE);
+                                            usecase->in_snd_device);
         if (rc < 0)
             goto exit_send_app_type_cfg;
 
@@ -1165,7 +1172,7 @@
         app_type = platform_get_default_app_type_v2(adev->platform, PCM_PLAYBACK);
         rc = set_stream_app_type_mixer_ctrl(adev, pcm_device_id, app_type,
                                             acdb_dev_id, sample_rate,
-                                            PCM_PLAYBACK, SND_DEVICE_NONE);
+                                            PCM_PLAYBACK, usecase->out_snd_device);
         if (rc < 0)
             goto exit_send_app_type_cfg;
     }
diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index 2a335f0..d31df8e 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -7665,6 +7665,11 @@
     return false;
 }
 
+int platform_get_is_afe_loopback_enabled(void *platform __unused)
+{
+   return 0;
+}
+
 int platform_set_edid_channels_configuration(void *platform, int channels, int backend_idx __unused, snd_device_t snd_device __unused) {
 
     struct platform_data *my_data = (struct platform_data *)platform;
diff --git a/hal/msm8960/platform.c b/hal/msm8960/platform.c
index 439b6d7..aa4286f 100644
--- a/hal/msm8960/platform.c
+++ b/hal/msm8960/platform.c
@@ -1223,6 +1223,11 @@
     return -ENOSYS;
 }
 
+int platform_get_is_afe_loopback_enabled(void *platform __unused)
+{
+   return 0;
+}
+
 int platform_set_edid_channels_configuration(void *platform __unused,
                                              int channels __unused,
                                              int backend_idx __unused)
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 9259150..e97fd5c 100755
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -317,6 +317,7 @@
     bool fluence_nn_enabled;
     int  fluence_type;
     int  fluence_mode;
+    int  afe_loopback;
     char fluence_cap[PROPERTY_VALUE_MAX];
     bool ambisonic_capture;
     bool ambisonic_profile;
@@ -8513,6 +8514,12 @@
         }
     }
 
+    err = str_parms_get_str(parms, "afe_loopback", value, len);
+    if (err >= 0) {
+        my_data->afe_loopback = atoi(value);
+        ALOGD("Updating afe_loopback as %d from platform XML" , my_data->afe_loopback);
+    }
+
     err = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_MONO_SPEAKER, value, len);
     if (err >= 0) {
         if (!strncmp("left", value, sizeof("left")))
@@ -11495,6 +11502,12 @@
                         backend_idx, snd_device, 0, 0);
 }
 
+int platform_get_is_afe_loopback_enabled(void *platform)
+{
+  struct platform_data *my_data = (struct platform_data *)platform;
+  return my_data->afe_loopback;
+}
+
 int platform_set_edid_channels_configuration_v2(void *platform, int channels,
                                      int backend_idx, snd_device_t snd_device,
                                      int controller, int stream) {
diff --git a/hal/platform_api.h b/hal/platform_api.h
index 922d61e..f0b10f5 100644
--- a/hal/platform_api.h
+++ b/hal/platform_api.h
@@ -333,6 +333,7 @@
 bool platform_check_codec_asrc_support(void *platform);
 int platform_get_backend_index(snd_device_t snd_device);
 int platform_get_ext_disp_type(void *platform);
+int platform_get_is_afe_loopback_enabled(void *platform);
 void platform_invalidate_hdmi_config(void *platform);
 void platform_invalidate_backend_config(void * platform,snd_device_t snd_device);
 bool platform_get_spkr_hph_single_be_native_concurrency_flag();