commit 5792d4b17cc32b23f2bc97789e6a91b00e6b3fe8
author Apoorv Raghuvanshi <apoorvr@codeaurora.org> Mon Oct 07 18:40:05 2013 -0700
committer Apoorv Raghuvanshi <apoorvr@codeaurora.org> Sat Oct 19 14:14:19 2013 -0700
tree a96b31b34be62693d757e803c5494c53717afce5
parent 42576848508f5b26f545a7ff527763965dab5412

hal: Support for usb audio features

Added support for usb audio feature and
related proxy device support

Change-Id: Ia64e9eff20fbbada6f08795686cdbc0ba462bafb

hal/audio_hw.c

diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index e80f88f..7a65925 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -186,6 +186,15 @@
         return 0;
     }
 
+    /* start usb playback thread */
+    if(SND_DEVICE_OUT_USB_HEADSET == snd_device ||
+       SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET == snd_device)
+        audio_extn_usb_start_playback(adev);
+
+    /* start usb capture thread */
+    if(SND_DEVICE_IN_USB_HEADSET_MIC == snd_device)
+       audio_extn_usb_start_capture(adev);
+
     if (platform_send_audio_calibration(adev->platform, snd_device) < 0) {
         adev->snd_dev_ref_cnt[snd_device]--;
         return -EINVAL;
@@ -214,6 +223,16 @@
         return -EINVAL;
     }
     adev->snd_dev_ref_cnt[snd_device]--;
+
+    /* exit usb play back thread */
+    if(SND_DEVICE_OUT_USB_HEADSET == snd_device ||
+       SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET == snd_device)
+        audio_extn_usb_stop_playback();
+
+    /* exit usb capture thread */
+    if(SND_DEVICE_IN_USB_HEADSET_MIC == snd_device)
+        audio_extn_usb_stop_capture(adev);
+
     if (adev->snd_dev_ref_cnt[snd_device] == 0) {
         ALOGV("%s: snd_device(%d: %s)", __func__,
               snd_device, platform_get_snd_device_name(snd_device));