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[Bug 1065400] Re: Support for loading Broadcom bluetooth firmware

 

Hi guys!

I have the same bug: a headset doesn't work in HSP/HFP mode
The firmware(BCM20702A1_001.002.014.1315.1410.hex) is successfully converted via hex2hcd and placed to /lib/firmware/fw-413c_8197.hcd

any hints?

I see only these errors in the syslogs:
Jan  3 06:14:25 fitz123-laptop bluetoothd[745]: /org/bluez/745/hci0/dev_48_C1_AC_E0_2C_CF/fd0: fd(26) ready
Jan  3 06:14:25 fitz123-laptop rtkit-daemon[2277]: Successfully made thread 3043 of process 2262 (n/a) owned by '1000' RT at priority 5.
Jan  3 06:14:25 fitz123-laptop rtkit-daemon[2277]: Supervising 4 threads of 1 processes of 1 users.
Jan  3 06:14:25 fitz123-laptop bluetoothd[745]: Badly formated or unrecognized command: AT+XEVENT=USER-AGENT,COM.PLANTRONICS,PLT_Legend,115,34.06,1069b78391dca242aa1fc92c3794e7f6
Jan  3 06:14:25 fitz123-laptop bluetoothd[745]: Badly formated or unrecognized command: AT+BIA=0,0,0,1,1,1,0

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 14.10
Release:	14.10
Codename:	utopic

$ usb-devices
T:  Bus=01 Lev=02 Prnt=02 Port=03 Cnt=01 Dev#=  3 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=413c ProdID=8197 Rev=01.12
S:  Manufacturer=Broadcom Corp
S:  Product=BCM20702A0
S:  SerialNumber=A4DB3020F62F
C:  #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
I:  If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
I:  If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)

$ dmesg | grep Bluetooth
[   14.799529] Bluetooth: Core ver 2.19
[   14.799549] Bluetooth: HCI device and connection manager initialized
[   14.799556] Bluetooth: HCI socket layer initialized
[   14.799559] Bluetooth: L2CAP socket layer initialized
[   14.799568] Bluetooth: SCO socket layer initialized
[   14.803087] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   14.803091] Bluetooth: BNEP filters: protocol multicast
[   14.803099] Bluetooth: BNEP socket layer initialized
[   14.815372] Bluetooth: RFCOMM TTY layer initialized
[   14.815382] Bluetooth: RFCOMM socket layer initialized
[   14.815387] Bluetooth: RFCOMM ver 1.11

Thanks!

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https://bugs.launchpad.net/bugs/1065400

Title:
  Support for loading Broadcom bluetooth firmware

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Precise:
  Fix Released
Status in linux source package in Quantal:
  Fix Released
Status in linux source package in Raring:
  Fix Released
Status in linux source package in Saucy:
  Fix Released

Bug description:
  Broadcom bluetooth chips require a tool called patchram uploader [1]
  to load firmware. This applies to at least BCM20702 and BCM43142.
  Although some of the devices have an OTPROM that contains required
  firmware, but it is found that these devices would not have HFP/HSP
  support unless a upgraded firmware is loaded via patchram uploader.

  This tool requires hci device to do the firmware loading, but this may
  cause some race condition between patchram tool and bluetoothd or
  something that also works on hci interface.

  Also it needs some hooks to make firmware loads after bootup, s3,  s4,
  rfkill, and device hotplug events. Implement this loader in kernel
  module would make things more easier.

  [1] http://marc.info/?l=linux-bluetooth&m=132039175324993&w=2

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