Bluetooth: Add support for HCI_Enhanced_Setup_Synchronous_Connection command

< HCI Command: Enhanced Setup Synchronous Connection (0x01|0x003d) plen 59
        Handle: 256
        Transmit bandwidth: 8000
        Receive bandwidth: 8000
        Max latency: 13
        Packet type: 0x0380
          3-EV3 may not be used
          2-EV5 may not be used
          3-EV5 may not be used
        Retransmission effort: Optimize for link quality (0x02)
> HCI Event: Command Status (0x0f) plen 4
      Enhanced Setup Synchronous Connection (0x01|0x003d) ncmd 1
        Status: Success (0x00)
> HCI Event: Synchronous Connect Complete (0x2c) plen 17
        Status: Success (0x00)
        Handle: 257
        Address: CC:98:8B:92:04:FD (SONY Visual Products Inc.)
        Link type: eSCO (0x02)
        Transmission interval: 0x0c
        Retransmission window: 0x06
        RX packet length: 60
        TX packet length: 60
        Air mode: Transparent (0x03)

Signed-off-by: Kiran K <kiran.k@intel.com>
Reviewed-by: Chethan T N <chethan.tumkur.narayan@intel.com>
Reviewed-by: Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

3 files changed, 41 insertions, 2 deletions

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 536cae9a8bd7..981ce32adc2e 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -173,7 +173,8 @@ struct bt_codecs {
 	struct bt_codec	codecs[];
 } __packed;
 
-#define BT_CODEC_CVSD	0x02
+#define BT_CODEC_CVSD		0x02
+#define BT_CODEC_TRANSPARENT	0x03
 
 __printf(1, 2)
 void bt_info(const char *fmt, ...);
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index c20e11f4b54c..f03bbdf5f9a9 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -873,6 +873,40 @@ struct hci_cp_logical_link_cancel {
 	__u8     flow_spec_id;
 } __packed;
 
+#define HCI_OP_ENHANCED_SETUP_SYNC_CONN		0x043d
+struct hci_coding_format {
+	__u8	id;
+	__le16	cid;
+	__le16	vid;
+} __packed;
+
+struct hci_cp_enhanced_setup_sync_conn {
+	__le16   handle;
+	__le32   tx_bandwidth;
+	__le32   rx_bandwidth;
+	struct	 hci_coding_format tx_coding_format;
+	struct	 hci_coding_format rx_coding_format;
+	__le16	 tx_codec_frame_size;
+	__le16	 rx_codec_frame_size;
+	__le32	 in_bandwidth;
+	__le32	 out_bandwidth;
+	struct	 hci_coding_format in_coding_format;
+	struct	 hci_coding_format out_coding_format;
+	__le16   in_coded_data_size;
+	__le16	 out_coded_data_size;
+	__u8	 in_pcm_data_format;
+	__u8	 out_pcm_data_format;
+	__u8	 in_pcm_sample_payload_msb_pos;
+	__u8	 out_pcm_sample_payload_msb_pos;
+	__u8	 in_data_path;
+	__u8	 out_data_path;
+	__u8	 in_transport_unit_size;
+	__u8	 out_transport_unit_size;
+	__le16   max_latency;
+	__le16   pkt_type;
+	__u8     retrans_effort;
+} __packed;
+
 struct hci_rp_logical_link_cancel {
 	__u8     status;
 	__u8     phy_handle;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 655e2a119e7f..fdfdd3bdde16 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -713,6 +713,7 @@ struct hci_conn {
 	struct amp_mgr	*amp_mgr;
 
 	struct hci_conn	*link;
+	struct bt_codec codec;
 
 	void (*connect_cfm_cb)	(struct hci_conn *conn, u8 status);
 	void (*security_cfm_cb)	(struct hci_conn *conn, u8 status);
@@ -1121,7 +1122,7 @@ struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
 				 u8 sec_level, u8 auth_type,
 				 enum conn_reasons conn_reason);
 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
-				 __u16 setting);
+				 __u16 setting, struct bt_codec *codec);
 int hci_conn_check_link_mode(struct hci_conn *conn);
 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
@@ -1458,6 +1459,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 /* Use LL Privacy based address resolution if supported */
 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
 
+/* Use enhanced synchronous connection if command is supported */
+#define enhanced_sco_capable(dev) ((dev)->commands[29] & 0x08)
+
 /* Use ext scanning if set ext scan param and ext scan enable is supported */
 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
 			   ((dev)->commands[37] & 0x40))