From patchwork Tue Jan 2 18:19:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Jonas_Dre=C3=9Fler?= X-Patchwork-Id: 759735 Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [80.241.56.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C603C156E1; Tue, 2 Jan 2024 18:19:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=v0yd.nl Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=v0yd.nl Received: from smtp2.mailbox.org (smtp2.mailbox.org [10.196.197.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-201.mailbox.org (Postfix) with ESMTPS id 4T4Ljd1DTkz9sRn; Tue, 2 Jan 2024 19:19:49 +0100 (CET) From: =?utf-8?q?Jonas_Dre=C3=9Fler?= To: Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz Cc: =?utf-8?q?Jonas_Dre=C3=9Fler?= , asahi@lists.linux.dev, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v2 0/4] Power off HCI devices before rfkilling them Date: Tue, 2 Jan 2024 19:19:16 +0100 Message-ID: <20240102181946.57288-1-verdre@v0yd.nl> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In theory the firmware is supposed to power off the bluetooth card when we use rfkill to block it. This doesn't work on a lot of laptops though, leading to weird issues after turning off bluetooth, like the connection timing out on the peripherals which were connected, and bluetooth not connecting properly when the adapter is turned on again quickly after rfkilling. This series hooks into the rfkill driver from the bluetooth subsystem to send a HCI_POWER_OFF command to the adapter before actually submitting the rfkill to the firmware and killing the HCI connection. --- v1 -> v2: Fixed commit message title to make CI happy Jonas Dreßler (4): Bluetooth: Remove HCI_POWER_OFF_TIMEOUT Bluetooth: mgmt: Remove leftover queuing of power_off work Bluetooth: Add new state HCI_POWERING_DOWN Bluetooth: Queue a HCI power-off command before rfkilling adapters include/net/bluetooth/hci.h | 2 +- net/bluetooth/hci_core.c | 33 ++++++++++++++++++++++++++++++--- net/bluetooth/hci_sync.c | 16 +++++++++++----- net/bluetooth/mgmt.c | 30 ++++++++++++++---------------- 4 files changed, 56 insertions(+), 25 deletions(-)