Commits on Apr 20, 2013
  1. Bluetooth losing HF connection to car-kit after 5 seconds

    This patch adresses a change in bluetooth which causes a possible
    loss of connection within 5 seconds after connecting.  This new
    behavior appeared with android 4.2 (4.1.2 worked fine in this regard).
    I traced down the disconnects to an BTA_AG_SVC_TOUT_EVT via a timer
    that checks if a service connection was made within a few seconds.
    Essentially bta_ag_svc_conn_open() was not called on AT+CMER because
    android thought the car kit supported 3WAY but the car kit did not
    set the 3WAY flag via AT commands and did not send AT+CHLD either.
    Android otoh used the flag obtained by SDP and expected 3WAY behavior
    and eventually disconnected when AT+CHLD did not arrive.
    This may be a bordeline case, because in the Bluetooth Specification
    (page 20), assuming service level initialization via SDP is only
    mentioned on the HF side while there is no such mention (but could
    probably be implied) on page 21 for the AG.
    Fact is however, that the use of SDP features value for peer_features
    is new since Android 4.2 and breaks existing good behavior on a BMW
    2005/E46 car kit (navi professional). This kit never asks for AT+CHLD
    and never via AT commands suggests it supports 3WAY (although it seems
    to have the flag set via SDP).
    Also, having essential behavior (like making the connection or not)
    depend on circumstances that may be prone to race conditions, may be
    a good reason to not use the SDP flag also (or at least masking out
    the 3WAY bit when using it).
    (An alternative approach could be to hook into bta_ag_timer_cback() and
    when the timer exipres, but when also AT+CMER has been seen meanwhile,
    to continue and assume a service level connection without 3WAY,
    i.e. clearing the 3-way flags but calling bta_ag_svc_conn_open() anyway.)
    Original author Markus Schmidt <>
    PS2: Correct Author and Whitspace
    Signed-off-by: apophis9283 <>
    Change-Id: Ib011ae6a1fb810dda9d851d2f03e8f7234761a89
    Markus Schmidt committed with Jubakuba Apr 20, 2013
Commits on Mar 31, 2013
  1. Merge "a2dp hw: adding a2dp tuning through bdroid_buildcfg.h" into jb…

    Whitehawkx committed with Gerrit Code Review Mar 31, 2013
Commits on Mar 30, 2013
  1. a2dp hw: adding a2dp tuning through bdroid_buildcfg.h

    This adds possibility to configure a2dp tuning on an
    arbitrary sysfs path and arbitrary ON/OFF values.
    It's activated when a2dp is being used, and
    deactivates when a2dp is stopped.
    This way a device can either use an a2dp_tuning sysfs file
    or cpu scaling min freq sysfs path with a target
    min_freq value for elevation.
    Here are two example of the two strategies of usage for
    bdroid_buildcfg.h - sysfs tuning file
     #define A2DP_HW_SYSFS_TUNER "/sys/devices/platform/tegra_uart.2/a2dp_tuning"
     #define A2DP_HW_SYSFS_TUNER_OFF "0"
     #define A2DP_HW_SYSFS_TUNER_ON "1"
    bdroid_buildcfg.h - scaling min freq file
     #define A2DP_HW_SYSFS_TUNER "/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq"
     #define A2DP_HW_SYSFS_TUNER_OFF "0"
     #define A2DP_HW_SYSFS_TUNER_ON "204000"
    Change-Id: I2cd94e626eb2a6d04a6e52ddac94fa5773eb09d8
    tbalden committed with Whitehawkx Mar 10, 2013
  2. libbt-hci: include bdroid_buildcfg.h from device repo

    This lets device repos override some constants with their bdroid_buildcfg.h if
    This fixes Bluetooth issues (namely tethering) on endeavoru where
    BTHC_USERIAL_READ_MEM_SIZE needs to be set to a higher value.
    Change-Id: I8955963cdb2b34f1ba63f8160861699f7284814f
    thoemy committed with Whitehawkx Mar 8, 2013
Commits on Mar 3, 2013
  1. Update btif_media_task.c

    Change middle quality to high quality for A2DP streaming to solve the issue of disortion in higher frequencies of music playback.  Refer to Android Google code issue 39632.
    blackout4 committed with akellar Mar 1, 2013
Commits on Feb 14, 2013
  1. Merge tag 'android-4.2.2_r1' into HEAD

    Android 4.2.2 release 1
    MarcLandis committed Feb 14, 2013
Commits on Jan 26, 2013
  1. Merge "Bluetooth: Change Sampling Frequency to 48 kHz"

    Linux Build Service Account committed with Gerrit - the friendly Code Review server Jan 26, 2013
Commits on Jan 23, 2013
  1. Bluetooth: Change Sampling Frequency to 48 kHz

    Change Default Sampling Frequency to 48 kHz by default to
    match Audio Source.
    CRs-fixed: 436686
    Change-Id: I0a4aa9ca61964e76220c77fa60c281f7a5df58b4
    Sunny Kapdi committed with Mallikarjuna GB Jan 22, 2013
Commits on Jan 14, 2013
  1. Merge "Bluetooth: Add feature flag to compile the audio stub"

    Linux Build Service Account committed with Gerrit - the friendly Code Review server Jan 14, 2013
  2. Merge "Bluedroid: Disable bluedroid stack when bluez stack is enabled"

    Linux Build Service Account committed with Gerrit - the friendly Code Review server Jan 14, 2013
Commits on Jan 13, 2013
  1. Bluetooth: Add feature flag to compile the audio stub

    This enables the compilation of audio stub of bluedroid only
    if Bluedroid related feature flag is enabled.
    Change-Id: I4a9b9b26824d7eaede8a9a7b3c2093fd33a2ee91
    Bhasker Neti committed with Shruthi Krishna Dec 3, 2012
  2. Bluedroid: Disable bluedroid stack when bluez stack is enabled

    When bluez stack is enabled by setting BOARD_HAVE_BLUETOOTH_BLUEZ
    don't compile the bluedroid stack
    Change-Id: I5324769b1349dc5f288a3bdb0bf4cc38ae3043d3
    Ram Mohan Korukonda committed with Shruthi Krishna Jan 3, 2013
Commits on Dec 13, 2012
  1. Snapshot 9fd57cbacd95e89602f430244c35bbc67f08b6d2

    Change-Id: Ibc3a4bf4161d286c7cfab89a19c676eb5cc9224f
    The Android Open Source Project committed Dec 13, 2012
  2. Snapshot 09118679ff7861de0fe2b742591e5d6aadba3fcc

    Change-Id: I35cdb320673d847d8122bc03b9832d13673ea208
    The Android Open Source Project committed Dec 13, 2012
  3. Snapshot 0d153181bbe9ce75555b437567796a9aef4ef0ae

    Change-Id: I99fb22bd2e10af658de4cfe26470e71bda147ce8
    The Android Open Source Project committed Dec 13, 2012
  4. Snapshot cdeccf6fdd8c2d494ea2867cb37a025bf8879baf

    Change-Id: Ia2de32ccb97a9641462c72363b0a8c4288f4f36d
    The Android Open Source Project committed Dec 13, 2012