From patchwork Tue Sep 7 10:12:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "K, Kiran" X-Patchwork-Id: 507607 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CE612C433EF for ; Tue, 7 Sep 2021 10:07:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BAA9D610FE for ; Tue, 7 Sep 2021 10:07:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244380AbhIGKI5 (ORCPT ); Tue, 7 Sep 2021 06:08:57 -0400 Received: from mga17.intel.com ([192.55.52.151]:1677 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244378AbhIGKI4 (ORCPT ); Tue, 7 Sep 2021 06:08:56 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10099"; a="200362852" X-IronPort-AV: E=Sophos;i="5.85,274,1624345200"; d="scan'208";a="200362852" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2021 03:07:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,274,1624345200"; d="scan'208";a="512785225" Received: from intel-lenovo-legion-y540-15irh-pg0.iind.intel.com ([10.224.186.95]) by orsmga001.jf.intel.com with ESMTP; 07 Sep 2021 03:07:48 -0700 From: Kiran K To: linux-bluetooth@vger.kernel.org Cc: ravishankar.srivatsa@intel.com, chethan.tumkur.narayan@intel.com, luiz.von.dentz@intel.com, michaelfsun@google.com, Kiran K Subject: [PATCH v15 09/13] Bluetooth: btintel: Define a callback to fetch codec config data Date: Tue, 7 Sep 2021 15:42:45 +0530 Message-Id: <20210907101249.7323-9-kiran.k@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210907101249.7323-1-kiran.k@intel.com> References: <20210907101249.7323-1-kiran.k@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Define callback function to get codec config data. In HFP offload usecase, controllers need to be set codec details before opening SCO. This callback function is used to fetch vendor specific codec config data. Signed-off-by: Kiran K Reviewed-by: Chethan T N Reviewed-by: Srivatsa Ravishankar --- Notes: * changes in v15: - No changes * changes in v14: - No changes * changes in v13: - No changes * changes in v12: - No changes * changes in v11: - Remove changes related to Kconfig * changes in v10: - new patch due to refactoring drivers/bluetooth/btintel.c | 53 ++++++++++++++++++++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 751e0f0b8242..115bb2d07a8d 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -2158,6 +2158,55 @@ static int btintel_prepare_fw_download_tlv(struct hci_dev *hdev, return err; } +static int btintel_get_codec_config_data(struct hci_dev *hdev, + __u8 link, struct bt_codec *codec, + __u8 *ven_len, __u8 **ven_data) +{ + int err = 0; + + if (!ven_data || !ven_len) + return -EINVAL; + + *ven_len = 0; + *ven_data = NULL; + + if (link != ESCO_LINK) { + bt_dev_err(hdev, "Invalid link type(%u)", link); + return -EINVAL; + } + + *ven_data = kmalloc(sizeof(__u8), GFP_KERNEL); + if (!ven_data) { + err = -ENOMEM; + goto error; + } + + /* supports only CVSD and mSBC offload codecs */ + switch (codec->id) { + case 0x02: + **ven_data = 0x00; + break; + case 0x05: + **ven_data = 0x01; + break; + default: + err = -EINVAL; + bt_dev_err(hdev, "Invalid codec id(%u)", codec->id); + goto error; + } + /* codec and its capabilities are pre-defined to ids + * preset id = 0x00 represents CVSD codec with sampling rate 8K + * preset id = 0x01 represents mSBC codec with sampling rate 16K + */ + *ven_len = sizeof(__u8); + return err; + +error: + kfree(*ven_data); + *ven_data = NULL; + return err; +} + static int btintel_get_data_path_id(struct hci_dev *hdev, __u8 *data_path_id) { /* Intel uses 1 as data path id for all the usecases */ @@ -2190,8 +2239,10 @@ static int btintel_configure_offload(struct hci_dev *hdev) goto error; } - if (use_cases->preset[0] & 0x03) + if (use_cases->preset[0] & 0x03) { hdev->get_data_path_id = btintel_get_data_path_id; + hdev->get_codec_config_data = btintel_get_codec_config_data; + } error: kfree_skb(skb); return err;