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From:   Sathish Narsimman <nsathish41@gmail.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     Sathish Narsimman <sathish.narasimman@intel.com>
Subject: [PATCH v4 1/2] bluetooth: add support to notify SCO air mode
Date:   Thu, 28 Nov 2019 14:47:47 +0530
Message-Id: <20191128091748.24531-1-sathish.narasimman@intel.com>
Sender: linux-bluetooth-owner@vger.kernel.org
Precedence: bulk

notifying HCI_NOTIFY_CONN_ADD for SCO connection is generic in
case of msbc audio. To differnetiate SCO air mode audio introducing
HCI_NOTIFY_SCO_CVSD and HCI_NOTIFY_SCO_TRASP.

Signed-off-by: Sathish Narsimman <sathish.narasimman@intel.com>
---
 include/net/bluetooth/hci.h      | 2 ++
 include/net/bluetooth/hci_core.h | 3 +++
 net/bluetooth/hci_event.c        | 9 +++++++++
 3 files changed, 14 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 5bc1e30dedde..26af112b1f2c 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -52,6 +52,8 @@
 #define HCI_NOTIFY_CONN_ADD		1
 #define HCI_NOTIFY_CONN_DEL		2
 #define HCI_NOTIFY_VOICE_SETTING	3
+#define HCI_NOTIFY_ENABLE_SCO_CVSD	4
+#define HCI_NOTIFY_ENABLE_SCO_TRANSP	5
 
 /* HCI bus types */
 #define HCI_VIRTUAL	0
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b689aceb636b..9258e19f8cc5 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1604,4 +1604,7 @@ void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
 #define SCO_AIRMODE_CVSD       0x0000
 #define SCO_AIRMODE_TRANSP     0x0003
 
+#define SCO_CODED_CVSD         0x02
+#define SCO_CODED_TRANSP       0x03
+
 #endif /* __HCI_CORE_H */
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index c1d3a303d97f..ecad696db139 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4231,6 +4231,15 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
 		break;
 	}
 
+	BT_DBG("sco connected with air mode: %02x", ev->air_mode);
+	if (ev->air_mode == SCO_CODED_CVSD) {
+		if (hdev->notify)
+			hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
+	} else if (ev->air_mode == SCO_CODED_TRANSP) {
+		if (hdev->notify)
+			hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
+	}
+
 	hci_connect_cfm(conn, ev->status);
 	if (ev->status)
 		hci_conn_del(conn);
-- 
2.17.1