Re: [bluetooth] btusb issues

["Patrick Shirkey" <pshirkey@boosthardware.com>]

On Thu, October 23, 2014 7:59 pm, Patrick Shirkey wrote:
> Hi,
>
> I have now got backports to run with bluez instead of bluedroid and the
> btusb driver instead of rtk_btusb.
>
> However the android bluetooth system does not want to run for me.
>

For reference purposes I have got bluez running on an 8723au chipset with
the btusb driver from the "new" branch of the btusb git repo.

Here's an overview of the steps required:

- Patch the 3.4 kernel with the patch files from the aosp-bluez "misc" repo
- Completely replace bluedroid in the android tree with bluez including
the modifed bionic tree from the aosp-bluez repo
- Cross compile the backports drivers replacing btusb.c with the version
from the "new" branch in the git repo.
- Copy the modules from the backports tree to the linux tree before
building the firmware image. (overwrite the .ko files generated by the
kernel build)
- Include the firmware binary images from the git repo "new" branch in the
android build so they are copied to the /system/etc/firmware/ folder in
the firmware image
- Modify the init.rc script to include the init.bluetooth.rc file
- Modify the <platform>.mk file (in this case
/device/softwinner/wing-k70/wing-k70.mk) to load the following modules on
boot:
    /system/vendor/modules/compat.ko
    /system/vendor/modules/bluetooth.ko
    /system/vendor/modules/btusb.ko

enable debug logging with :

setprop persist.sys.bluetooth.debug 1



# btmgmt info
hci0:	addr CC:D2:9C:73:CB:45 version 6 manufacturer 93 class 0x000000
	supported settings: powered connectable fast-connectable discoverable
bondable link-security ssp br/edr hs le advertising debug-keys privacy
	current settings: bondable ssp br/edr le
	name BlueZ for Android
	short name


# haltest
audio_hw_device_open returned -98
hw_get_module_by_class returned -2
thread_evt_cb: evt=ASSOCIATE_JVM
if_bluetooth->init: BT_STATUS_SUCCESS
get_profile_interface(handsfree) : 0xb6e58134
get_profile_interface(a2dp) : 0xb6e580ec
get_profile_interface(avrcp) : 0xb6e58100
get_profile_interface(health) : 0xb6e583d0
get_profile_interface(hidhost) : 0xb6e580a0
get_profile_interface(pan) : 0xb6e580d0
get_profile_interface(gatt) : 0xb6e581ac
get_profile_interface(socket) : 0xb6e58094
if_bluetooth->init: BT_STATUS_DONE
if_av->init: BT_STATUS_SUCCESS
if_rc->init: BT_STATUS_SUCCESS
if_gatt->init: BT_STATUS_FAIL
adapter_properties_cb: status=BT_STATUS_SUCCESS num_properties=1
prop: type=BT_PROPERTY_UUIDS len=80 val={0000110e, 0000110c, 0000110a,
0000113b, 00001200}
adapter_properties_cb: status=BT_STATUS_SUCCESS num_properties=1
prop: type=BT_PROPERTY_UUIDS len=80 val={0000110e, 0000110c, 0000110a,
0000113b, 00001200}
adapter_properties_cb: status=BT_STATUS_SUCCESS num_properties=1
prop: type=BT_PROPERTY_UUIDS len=80 val={0000110e, 0000110c, 0000110a,
0000113b, 00001200}
if_hf->init: BT_STATUS_FAIL
if_hh->init: BT_STATUS_SUCCESS
if_pan->init: BT_STATUS_FAIL
adapter_properties_cb: status=BT_STATUS_SUCCESS num_properties=1
prop: type=BT_PROPERTY_UUIDS len=80 val={0000110e, 0000110c, 0000110a,
0000113b, 00001200}
adapter_properties_cb: status=BT_STATUS_SUCCESS num_properties=1
prop: type=BT_PROPERTY_UUIDS len=80 val={0000110e, 0000110c, 0000110a,
0000113b, 00001200}
if_hl->init: BT_STATUS_SUCCESS
>


# btmgmt le on
hci0 Set Low Energy complete, settings: bondable ssp br/edr le
# btmgmt find
Unable to start discovery. status 0x0f (Not Powered)
# btmgmt power on
hci0 Set Powered complete, settings: powered bondable ssp br/edr le
# btmgmt find
Discovery started
hci0 dev_found: BC:6A:29:AB:2C:AA type LE Public rssi -44 flags 0x0000 AD
flags 0x06 eir_len 25





--
Patrick Shirkey
Boost Hardware Ltd