]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/commit
Bluetooth: Workaround directed advertising bug in Broadcom controllers
authorSzymon Janc <szymon.janc@codecoup.pl>
Wed, 2 Oct 2019 12:22:43 +0000 (14:22 +0200)
committerKhalid Elmously <khalid.elmously@canonical.com>
Wed, 29 Jan 2020 04:45:21 +0000 (23:45 -0500)
commit8d1991241de9793b3d482736c99c72ce3b8879e2
treeed0372c35ff9e7d3af0201166eb25e55a6d15d02
parent6dd4df4b2dfa98b85ae8cc505dfbd0eaa944c7dc
Bluetooth: Workaround directed advertising bug in Broadcom controllers

BugLink: https://bugs.launchpad.net/bugs/1859712
[ Upstream commit 4c371bb95cf06ded80df0e6139fdd77cee1d9a94 ]

It appears that some Broadcom controllers (eg BCM20702A0) reject LE Set
Advertising Parameters command if advertising intervals provided are not
within range for undirected and low duty directed advertising.

Workaround this bug by populating min and max intervals with 'valid'
values.

< HCI Command: LE Set Advertising Parameters (0x08|0x0006) plen 15
        Min advertising interval: 0.000 msec (0x0000)
        Max advertising interval: 0.000 msec (0x0000)
        Type: Connectable directed - ADV_DIRECT_IND (high duty cycle) (0x01)
        Own address type: Public (0x00)
        Direct address type: Random (0x01)
        Direct address: E2:F0:7B:9F:DC:F4 (Static)
        Channel map: 37, 38, 39 (0x07)
        Filter policy: Allow Scan Request from Any, Allow Connect Request from Any (0x00)
> HCI Event: Command Complete (0x0e) plen 4
      LE Set Advertising Parameters (0x08|0x0006) ncmd 1
        Status: Invalid HCI Command Parameters (0x12)

Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
Tested-by: Sören Beye <linux@hypfer.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
net/bluetooth/hci_conn.c