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

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Felipe Ortiz <fortizc@xxxxxxxxx>
Date: Tue, 15 Dec 2015 04:57:52 -0000
Reply-to: Bug 1065400 <1065400@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I found 2 drivers using Bootcamp the first have an .inf file where muy device is listed (see the .tar.gz inside the drv) and the second (the exe file) contains a lot of .hdc files, but seems to be useless. OSX report my device as: 
  Manufacturer:	Broadcom
  Transport:	USB
  Chipset:	20703A1
  Firmware Version:	v90 c4342
  Bluetooth Power:	On
  Discoverable:	Off
  Connectable:	No
  Auto Seek Pointing:	On
  Remote wake:	On
  Vendor ID:	0x05AC
  Product ID:	0x8290
  HCI Version:	0x7
  HCI Revision:	0x10F6
  LMP Version:	0x7
  LMP Subversion:	0x215A
  Device Type (Major):	Computer
  Device Type (Complete):	Mac Portable
  Composite Class Of Device:	0x38010C
  Device Class (Major):	0x01
  Device Class (Minor):	0x03
  Service Class:	0x1C0
  Auto Seek Keyboard:	On

** Attachment added: "drv.tar.gz"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1065400/+attachment/4534893/+files/drv.tar.gz

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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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