audio: hdmi: Handle error writing to device in hdmi_out_write()

If there is an error writing to the device in hdmi_out_write(), the
function then sleeps for the size of the current fragment (bytes arg,
converted to seconds).

Change-Id: I2ea3942a02e14ea00c73a8519839865aab59ae00
Signed-off-by: Ranganath Krishnan <ranganath@ti.com>
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>

1 files changed, 12 insertions, 6 deletions

diff --git a/audio/hdmi_audio_hw.c b/audio/hdmi_audio_hw.c
index f46aee6..cd44aec 100644
--- a/audio/hdmi_audio_hw.c
+++ b/audio/hdmi_audio_hw.c
@@ -372,7 +372,8 @@ ssize_t hdmi_out_write(struct audio_stream_out *stream, const void* buffer,
 
     if (!out->up) {
         if(hdmi_out_open_pcm(out)) {
-            return -ENOSYS;
+            ret = -ENOSYS;
+	    goto exit;
         }
     }
 
@@ -382,15 +383,20 @@ ssize_t hdmi_out_write(struct audio_stream_out *stream, const void* buffer,
     } else {
        ret = pcm_write(out->pcm, buffer, bytes);
     }
-    if (ret) {
+exit:
+    if (ret != 0) {
         ALOGE("Error writing to HDMI pcm: %s", pcm_get_error(out->pcm));
-        ret = (ret < 0) ? ret : -ret;
         hdmi_out_standby((struct audio_stream*)stream);
-    } else {
-        ret = bytes;
+	unsigned int usecs = bytes * 1000000 /
+			audio_stream_frame_size((struct audio_stream*)stream) /
+			hdmi_out_get_sample_rate((struct audio_stream*)stream);
+	if (usecs >= 1000000L) {
+	    usecs = 999999L;
+	}
+	usleep(usecs);
     }
 
-    return ret;
+    return bytes;
 }