commit 810bd7416134e721c6b951d489cf0689cf08c111
author Nick Pelly <npelly@google.com> Wed Dec 09 16:20:28 2009 -0800
committer Jaikumar Ganesh <jaikumar@google.com> Wed May 25 11:51:54 2011 -0700
tree f45c7a357c574f4f1c29e82598ee47fd66fbc26d
parent c4e47c15ae8fe36673e7cdd7ee3caaffddb5071e

Changes flush timeout from 60 ms to 120 ms.

Less A2DP drop-outs due to unnecessary flushing.

BCM recommend 120-150ms for lazy flushing.

common/android_bluez.c

diff --git a/common/android_bluez.c b/common/android_bluez.c
index 81dd549..3f33332 100644
--- a/common/android_bluez.c
+++ b/common/android_bluez.c
@@ -51,7 +51,9 @@
 	capset(&header, &cap);
 }
 
-static int write_flush_timeout(int fd, uint16_t handle, uint16_t timeout) {
+static int write_flush_timeout(int fd, uint16_t handle,
+        unsigned int timeout_ms) {
+    uint16_t timeout = (timeout_ms * 1000) / 625;  // timeout units of 0.625ms
     unsigned char hci_write_flush_cmd[] = {
         0x01,               // HCI command packet
         0x28, 0x0C,         // HCI_Write_Automatic_Flush_Timeout
@@ -185,7 +187,7 @@
     ret = vendor_high_priority(fd, acl_handle);
     if (ret < 0)
         goto out;
-    ret = write_flush_timeout(fd, acl_handle, 0x60);
+    ret = write_flush_timeout(fd, acl_handle, 120);
 
 out:
     close(fd);