hal: Support for usb audio features

Added support for usb audio feature and
related proxy device support

Change-Id: Ia64e9eff20fbbada6f08795686cdbc0ba462bafb
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 02940b4..310a048 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -115,6 +115,9 @@
     [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_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_TRANSMISSION_FM] = "transmission-fm",
     [SND_DEVICE_OUT_ANC_HEADSET] = "anc-headphones",
     [SND_DEVICE_OUT_ANC_FB_HEADSET] = "anc-fb-headphones",
@@ -144,6 +147,7 @@
     [SND_DEVICE_IN_VOICE_REC_MIC] = "voice-rec-mic",
     [SND_DEVICE_IN_VOICE_REC_DMIC] = "voice-rec-dmic-ef",
     [SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE] = "voice-rec-dmic-ef-fluence",
+    [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",
 };
@@ -166,6 +170,9 @@
     [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_AFE_PROXY] = 0,
+    [SND_DEVICE_OUT_USB_HEADSET] = 0,
+    [SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] = 14,
     [SND_DEVICE_OUT_TRANSMISSION_FM] = 0,
     [SND_DEVICE_OUT_ANC_HEADSET] = 26,
     [SND_DEVICE_OUT_ANC_FB_HEADSET] = 26,
@@ -192,6 +199,7 @@
     [SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC] = 36,
     [SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC] = 16,
     [SND_DEVICE_IN_VOICE_REC_MIC] = 62,
+    [SND_DEVICE_IN_USB_HEADSET_MIC] = 44,
     [SND_DEVICE_IN_CAPTURE_FM] = 0,
     [SND_DEVICE_IN_AANC_HANDSET_MIC] = 104,
     /* TODO: Update with proper acdb ids */
@@ -263,7 +271,7 @@
 {
     char value[PROPERTY_VALUE_MAX];
     struct platform_data *my_data;
-    int retry_num = 0;
+    int retry_num = 0, ret;
 
     adev->mixer = mixer_open(MIXER_CARD);
 
@@ -340,12 +348,17 @@
             my_data->acdb_init();
     }
 
+    /* init usb */
+    audio_extn_usb_init(adev);
+
     return my_data;
 }
 
 void platform_deinit(void *platform)
 {
     free(platform);
+    /* deinit usb */
+    audio_extn_usb_deinit();
 }
 
 const char *platform_get_snd_device_name(snd_device_t snd_device)
@@ -366,6 +379,15 @@
         strcat(mixer_path, " hdmi");
     else if (snd_device == SND_DEVICE_OUT_SPEAKER_AND_HDMI)
         strcat(mixer_path, " speaker-and-hdmi");
+    else if (snd_device == SND_DEVICE_OUT_AFE_PROXY)
+        strlcat(mixer_path, " afe-proxy", MIXER_PATH_MAX_LENGTH);
+    else if (snd_device == SND_DEVICE_OUT_USB_HEADSET)
+        strlcat(mixer_path, " usb-headphones", MIXER_PATH_MAX_LENGTH);
+    else if (snd_device == SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET)
+        strlcat(mixer_path, " speaker-and-usb-headphones",
+                MIXER_PATH_MAX_LENGTH);
+    else if (snd_device == SND_DEVICE_IN_USB_HEADSET_MIC)
+        strlcat(mixer_path, " usb-headset-mic", MIXER_PATH_MAX_LENGTH);
     else if (snd_device == SND_DEVICE_IN_CAPTURE_FM)
         strlcat(mixer_path, " capture-fm", MIXER_PATH_MAX_LENGTH);
     else if (snd_device == SND_DEVICE_OUT_TRANSMISSION_FM)
@@ -528,11 +550,6 @@
         goto exit;
     }
 
-    if(devices & AUDIO_DEVICE_OUT_PROXY) {
-         ALOGD("%s: setting sink capability for Proxy", __func__);
-         audio_extn_set_afe_proxy_channel_mixer(adev);
-    }
-
     if (mode == AUDIO_MODE_IN_CALL) {
         if (devices & AUDIO_DEVICE_OUT_WIRED_HEADPHONE ||
             devices & AUDIO_DEVICE_OUT_WIRED_HEADSET) {
@@ -554,6 +571,9 @@
             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_FM_TX) {
             snd_device = SND_DEVICE_OUT_TRANSMISSION_FM;
         } else if (devices & AUDIO_DEVICE_OUT_EARPIECE) {
@@ -582,6 +602,9 @@
         } 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;
@@ -616,10 +639,17 @@
         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_FM_TX) {
         snd_device = SND_DEVICE_OUT_TRANSMISSION_FM;
     } else if (devices & AUDIO_DEVICE_OUT_EARPIECE) {
         snd_device = SND_DEVICE_OUT_HANDSET;
+    } else if (devices & AUDIO_DEVICE_OUT_PROXY) {
+        ALOGD("%s: setting sink capability for Proxy", __func__);
+        audio_extn_set_afe_proxy_channel_mixer(adev);
+        snd_device = SND_DEVICE_OUT_AFE_PROXY;
     } else {
         ALOGE("%s: Unknown device(s) %#x", __func__, devices);
     }
@@ -763,6 +793,9 @@
             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_RX) {
             snd_device = SND_DEVICE_IN_CAPTURE_FM;
         } else {
@@ -783,6 +816,9 @@
             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__);