From patchwork Fri Nov 19 08:20:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "K, Kiran" X-Patchwork-Id: 516984 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 79033C433EF for ; Fri, 19 Nov 2021 08:15:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6556461A55 for ; Fri, 19 Nov 2021 08:15:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234163AbhKSISA (ORCPT ); Fri, 19 Nov 2021 03:18:00 -0500 Received: from mga04.intel.com ([192.55.52.120]:1480 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234154AbhKSISA (ORCPT ); Fri, 19 Nov 2021 03:18:00 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10172"; a="233098344" X-IronPort-AV: E=Sophos;i="5.87,246,1631602800"; d="scan'208";a="233098344" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Nov 2021 00:14:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,246,1631602800"; d="scan'208";a="473468681" Received: from intel-lenovo-legion-y540-15irh-pg0.iind.intel.com ([10.224.186.95]) by orsmga002.jf.intel.com with ESMTP; 19 Nov 2021 00:14:56 -0800 From: Kiran K To: linux-bluetooth@vger.kernel.org Cc: ravishankar.srivatsa@intel.com, chethan.tumkur.narayan@intel.com, luiz.von.dentz@intel.com, Kiran K Subject: [PATCH v4 02/14] Bluetooth: Support reading of codecs supported over l2cap socket Date: Fri, 19 Nov 2021 13:50:15 +0530 Message-Id: <20211119082027.12809-2-kiran.k@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211119082027.12809-1-kiran.k@intel.com> References: <20211119082027.12809-1-kiran.k@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Codecs supported for A2DP offload use case are returned over l2cap socket. Add BT_CODEC option to getsockopt to return the codecs. Signed-off-by: Kiran K Reviewed-by: Chethan T N Reviewed-by: Srivatsa Ravishankar --- include/net/bluetooth/hci.h | 2 ++ net/bluetooth/l2cap_sock.c | 21 +++++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 84db6b275231..e52fd2f1e046 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -332,6 +332,7 @@ enum { HCI_FORCE_NO_MITM, HCI_QUALITY_REPORT, HCI_OFFLOAD_CODECS_ENABLED, + HCI_MSFT_A2DP_OFFLOAD_CODECS_ENABLED, __HCI_NUM_FLAGS, }; @@ -2667,6 +2668,7 @@ static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb) #define hci_iso_data_flags(h) ((h) >> 14) /* codec transport types */ +#define HCI_TRANSPORT_ACL 0x00 #define HCI_TRANSPORT_SCO_ESCO 0x01 /* le24 support */ diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 4574c5cb1b59..3c293d6bd04b 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -36,6 +36,7 @@ #include #include "smp.h" +#include "hci_codec.h" static struct bt_sock_list l2cap_sk_list = { .lock = __RW_LOCK_UNLOCKED(l2cap_sk_list.lock) @@ -568,6 +569,7 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, struct bt_power pwr; u32 phys; int len, mode, err = 0; + struct hci_dev *hdev; BT_DBG("sk %p", sk); @@ -704,6 +706,25 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, err = -EFAULT; break; + case BT_CODEC: + hdev = hci_get_route(BDADDR_ANY, &chan->src, BDADDR_BREDR); + if (!hdev) { + err = -EBADFD; + break; + } + + if (!hci_dev_test_flag(hdev, + HCI_MSFT_A2DP_OFFLOAD_CODECS_ENABLED)) { + hci_dev_put(hdev); + err = -EOPNOTSUPP; + break; + } + + err = hci_get_supported_codecs(hdev, HCI_TRANSPORT_ACL, optval, + optlen, len); + hci_dev_put(hdev); + break; + default: err = -ENOPROTOOPT; break;