hal: msm8916: Support for HFP

Bug: 29323703
Change-Id: I64094d94e0c69aea79c7a2f30eaf97f3e913df4c
diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index e3d2a85..11521e8 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -185,6 +185,7 @@
     [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_SPEAKER_HFP] = "voice-speaker-hfp",
     [SND_DEVICE_OUT_VOICE_HEADPHONES] = "voice-headphones",
     [SND_DEVICE_OUT_VOICE_LINE] = "voice-line",
     [SND_DEVICE_OUT_HDMI] = "hdmi",
@@ -222,6 +223,7 @@
     [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_SPEAKER_MIC_HFP] = "voice-speaker-mic-hfp",
     [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",
@@ -286,6 +288,7 @@
     [SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] = 14,
     [SND_DEVICE_OUT_SPEAKER_PROTECTED] = 124,
     [SND_DEVICE_OUT_VOICE_SPEAKER_PROTECTED] = 101,
+    [SND_DEVICE_OUT_VOICE_SPEAKER_HFP] = 14,
 
     [SND_DEVICE_IN_HANDSET_MIC] = 4,
     [SND_DEVICE_IN_HANDSET_MIC_EXTERNAL] = 4,
@@ -315,6 +318,7 @@
     [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_MIC_HFP] = 11,
     [SND_DEVICE_IN_VOICE_SPEAKER_DMIC] = 43,
     [SND_DEVICE_IN_VOICE_SPEAKER_QMIC] = 19,
     [SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC] = 16,
@@ -362,6 +366,7 @@
     {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_SPEAKER_HFP)},
     {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_HEADPHONES)},
     {TO_NAME_INDEX(SND_DEVICE_OUT_VOICE_LINE)},
     {TO_NAME_INDEX(SND_DEVICE_OUT_HDMI)},
@@ -397,6 +402,7 @@
     {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_SPEAKER_MIC_HFP)},
     {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)},
@@ -1356,6 +1362,9 @@
                               ALL_SESSION_VSID,
                               DEFAULT_MUTE_RAMP_DURATION_MS};
 
+    if (audio_extn_hfp_is_active(adev))
+        mixer_ctl_name = "HFP Tx Mute";
+
     set_values[0] = state;
     ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
     if (!ctl) {
@@ -1515,7 +1524,10 @@
             else
                 snd_device = SND_DEVICE_OUT_BT_SCO;
         } else if (devices & AUDIO_DEVICE_OUT_SPEAKER) {
-                    snd_device = SND_DEVICE_OUT_VOICE_SPEAKER;
+            if (audio_extn_hfp_is_active(adev))
+                snd_device = SND_DEVICE_OUT_VOICE_SPEAKER_HFP;
+            else
+                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;
@@ -1645,8 +1657,12 @@
                     }
             } else {
                 snd_device = SND_DEVICE_IN_VOICE_SPEAKER_MIC;
-                if (audio_extn_hfp_is_active(adev))
+                if (audio_extn_hfp_is_active(adev)) {
+                    snd_device = SND_DEVICE_IN_VOICE_SPEAKER_MIC_HFP;
                     platform_set_echo_reference(adev, true, out_device);
+                } else {
+                    snd_device = SND_DEVICE_IN_VOICE_SPEAKER_MIC;
+                }
             }
         } else if (out_device & AUDIO_DEVICE_OUT_TELEPHONY_TX)
             snd_device = SND_DEVICE_IN_VOICE_RX;
diff --git a/hal/msm8916/platform.h b/hal/msm8916/platform.h
index a386652..da4a027 100644
--- a/hal/msm8916/platform.h
+++ b/hal/msm8916/platform.h
@@ -63,6 +63,7 @@
     SND_DEVICE_OUT_VOICE_HANDSET,
     SND_DEVICE_OUT_VOICE_HAC_HANDSET,
     SND_DEVICE_OUT_VOICE_SPEAKER,
+    SND_DEVICE_OUT_VOICE_SPEAKER_HFP,
     SND_DEVICE_OUT_VOICE_HEADPHONES,
     SND_DEVICE_OUT_VOICE_LINE,
     SND_DEVICE_OUT_HDMI,
@@ -112,6 +113,7 @@
     SND_DEVICE_IN_HEADSET_MIC,
     SND_DEVICE_IN_HEADSET_MIC_FLUENCE,
     SND_DEVICE_IN_VOICE_SPEAKER_MIC,
+    SND_DEVICE_IN_VOICE_SPEAKER_MIC_HFP,
     SND_DEVICE_IN_VOICE_HEADSET_MIC,
     SND_DEVICE_IN_HDMI_MIC,
     SND_DEVICE_IN_BT_SCO_MIC,