From patchwork Thu Sep 10 06:04:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Hwang X-Patchwork-Id: 1361241 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256 header.s=google header.b=LEZWoPjI; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Bn7cw01k0z9sTH for ; Thu, 10 Sep 2020 16:04:15 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726228AbgIJGEP (ORCPT ); Thu, 10 Sep 2020 02:04:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725885AbgIJGEJ (ORCPT ); Thu, 10 Sep 2020 02:04:09 -0400 Received: from mail-pg1-x543.google.com (mail-pg1-x543.google.com [IPv6:2607:f8b0:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BAC2AC061573 for ; Wed, 9 Sep 2020 23:04:09 -0700 (PDT) Received: by mail-pg1-x543.google.com with SMTP id u13so3680608pgh.1 for ; Wed, 09 Sep 2020 23:04:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=qmrRE/cAzT6Pa5rmjyA2UxqDEd0+8qsdczMgIJaVlsU=; b=LEZWoPjI4LA8Dv/MZRYuK82FFHbjI9L98lH14pFMFTBbD0RoCkuSYaZTurrF3ogbrJ IduTS4B46X3HuwdMjZzBoVS79Orz/g76vTulGQrv4p7RvV6YxqthIMO8H0BjwcGUkkUC /fbvwqhXI6uoZMEvZvmLXSebliXRf50ScUhn8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=qmrRE/cAzT6Pa5rmjyA2UxqDEd0+8qsdczMgIJaVlsU=; b=F3SkYETj4CISvGDxKO9FuLN+gpumbFTnrDUeIIJwOObrGmSmOVkyQL5Aat5qjb7bLH V8Xb9Svdfbt7hBIAXwTF8801TPpzMOjhSj1GtUGMW1bjKUR3zX5Hg5RHPjvVBbcLztI0 hjGp0H/yicxpl7wIj/h/W0zs0DrFgxM2+buK+V6iDb1cQvLe/s0wcwzu/usL4Q/WVEyL WDwvz6xvsdemHJmtvvuxsJgIpKQP/Ds+QYtzGSZSRRosUi0OPt1ByQ3f0ss1QcNkAJQw JNKZ4odWDBd7AcTeN83LOxGGjA7hcEB3W6KjS9EVFMw7np9OIoKRbx/4e8FxNaXB0pYf TqoQ== X-Gm-Message-State: AOAM530iNXh+4SkoE4uDvwQuOfJhe3fWbNiAZ7cQDuUzuUf3HSGsU07U gL62jyBmSV2By6PqUlrsIs4tpw== X-Google-Smtp-Source: ABdhPJzGYrjJX62SBHU9URsZeDFcnsOS7Ix3hXjVRHeu8ZxSdmNkacTKI+nxmWp+LcsGGhb1Usfuew== X-Received: by 2002:aa7:9494:: with SMTP id z20mr3939184pfk.144.1599717849282; Wed, 09 Sep 2020 23:04:09 -0700 (PDT) Received: from josephsih-z840.tpe.corp.google.com ([2401:fa00:1:10:de4a:3eff:fe7d:ff5f]) by smtp.gmail.com with ESMTPSA id j14sm893236pjz.21.2020.09.09.23.04.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2020 23:04:08 -0700 (PDT) From: Joseph Hwang To: linux-bluetooth@vger.kernel.org, marcel@holtmann.org, luiz.dentz@gmail.com, pali@kernel.org Cc: chromeos-bluetooth-upstreaming@chromium.org, josephsih@google.com, Joseph Hwang , "David S. Miller" , Jakub Kicinski , Johan Hedberg , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v3 0/2] To support the HFP WBS, a chip vendor may choose a particular Date: Thu, 10 Sep 2020 14:04:00 +0800 Message-Id: <20200910060403.144524-1-josephsih@chromium.org> X-Mailer: git-send-email 2.28.0.618.gf4bc123cb7-goog MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org USB alternate seeting of which the packet size is distinct. The patches are to expose the packet size to user space so that the user space does not need to hard code those values. We have verified this patch on Chromebooks which use - Realtek 8822CE controller with USB alt setting 1 - Intel controller with USB alt setting 6 Our user space audio server, cras, can get the correct packet length from the socket option. Changes in v3: - Set hdev->sco_mtu to rp->sco_mtu if the latter is smaller. - Fixed the commit message. Changes in v2: - Used sco_mtu instead of a new sco_pkt_len member in hdev. - Do not overwrite hdev->sco_mtu in hci_cc_read_buffer_size if it has been set in the USB interface. - Used BT_SNDMTU/BT_RCVMTU instead of creating a new opt name. - Used the existing conn->mtu instead of creating a new member in struct sco_pinfo. - Noted that the old SCO_OPTIONS in sco_sock_getsockopt_old() would just work as it uses sco_pi(sk)->conn->mtu. Joseph Hwang (2): Bluetooth: btusb: define HCI packet sizes of USB Alts Bluetooth: sco: new getsockopt options BT_SNDMTU/BT_RCVMTU drivers/bluetooth/btusb.c | 45 +++++++++++++++++++++++++++++---------- net/bluetooth/hci_event.c | 14 +++++++++++- net/bluetooth/sco.c | 6 ++++++ 3 files changed, 53 insertions(+), 12 deletions(-)