commit 6720ae6a01a641362a338b4dfea352dc41e917fe
author Ethan Chen <intervigil@gmail.com> Fri Jul 03 21:35:30 2015 -0700
committer Steve Kondik <steve@cyngn.com> Tue Oct 13 09:07:27 2015 -1000
tree 59fc67ec4154d96034b1d31376795c970f9dd85f
parent 79c356c36ae1afa090afda9ce687e608ef63218d

hal: Notify amplifier of device enable/disable

Change-Id: Ice808c9b55a9e3bc8bafe5ca3ff555377d38dd8f

hal/audio_hw.c

diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index f322307..94864a7 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -283,6 +283,21 @@
     return 0;
 }
 
+static int amplifier_enable_devices(uint32_t devices, bool enable)
+{
+    amplifier_device_t *amp = get_amplifier_device();
+    bool is_output = devices > SND_DEVICE_OUT_BEGIN &&
+        devices < SND_DEVICE_OUT_END;
+
+    if (amp && amp->enable_output_devices && is_output)
+        return amp->enable_output_devices(amp, devices, enable);
+
+    if (amp && amp->enable_input_devices && !is_output)
+        return amp->enable_input_devices(amp, devices, enable);
+
+    return 0;
+}
+
 static int amplifier_set_mode(audio_mode_t mode)
 {
     amplifier_device_t *amp = get_amplifier_device();
@@ -589,6 +604,7 @@
         audio_extn_listen_update_status(snd_device,
                 LISTEN_EVENT_SND_DEVICE_BUSY);
 
+        amplifier_enable_devices(snd_device, true);
         audio_route_apply_and_update_path(adev->audio_route, device_name);
     }
     return 0;
@@ -632,8 +648,10 @@
             snd_device == SND_DEVICE_OUT_VOICE_SPEAKER) &&
             audio_extn_spkr_prot_is_enabled()) {
             audio_extn_spkr_prot_stop_processing();
-        } else
+        } else {
             audio_route_reset_and_update_path(adev->audio_route, device_name);
+            amplifier_enable_devices(snd_device, false);
+        }
 
         audio_extn_listen_update_status(snd_device,
                                         LISTEN_EVENT_SND_DEVICE_FREE);