From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
This introduces the definitions for the new L2CAP mode called Enhanced
Credit Based Mode.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 41 +++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 093aedebdf0c..d85fb2c8e6eb 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -119,6 +119,11 @@ struct l2cap_conninfo {
#define L2CAP_LE_CONN_REQ 0x14
#define L2CAP_LE_CONN_RSP 0x15
#define L2CAP_LE_CREDITS 0x16
+#define L2CAP_EXT_FLOWCTL_CONN_REQ 0x17
+#define L2CAP_EXT_FLOWCTL_CONN_RSP 0x18
+#define L2CAP_EXT_FLOWCTL_RECONF_REQ 0x19
+#define L2CAP_EXT_FLOWCTL_RECONF_RSP 0x1a
+
/* L2CAP extended feature mask */
#define L2CAP_FEAT_FLOWCTL 0x00000001
@@ -360,6 +365,8 @@ struct l2cap_conf_rfc {
*/
#define L2CAP_MODE_LE_FLOWCTL 0x80
+#define L2CAP_MODE_EXT_FLOWCTL 0x81
+
struct l2cap_conf_efs {
__u8 id;
__u8 stype;
@@ -483,6 +490,39 @@ struct l2cap_le_credits {
__le16 credits;
} __packed;
+#define L2CAP_EXT_FLOWCTL_MIN_MTU 64
+#define L2CAP_EXT_FLOWCTL_MIN_MPS 64
+
+struct l2cap_ext_flowctl_conn_req {
+ __le16 psm;
+ __le16 mtu;
+ __le16 mps;
+ __le16 credits;
+ __le16 scid[0];
+} __packed;
+
+struct l2cap_ext_flowctl_conn_rsp {
+ __le16 mtu;
+ __le16 mps;
+ __le16 credits;
+ __le16 result;
+ __le16 dcid[0];
+};
+
+struct l2cap_ext_flowctl_reconf_req {
+ __le16 mtu;
+ __le16 mps;
+ __le16 scid[0];
+} __packed;
+
+#define L2CAP_RECONF_SUCCESS 0x0000
+#define L2CAP_RECONF_INVALID_MTU 0x0001
+#define L2CAP_RECONF_INVALID_MPS 0x0002
+
+struct l2cap_ext_flowctl_reconf_rsp {
+ __le16 result;
+} __packed;
+
/* ----- L2CAP channels and connections ----- */
struct l2cap_seq_list {
__u16 head;
@@ -724,6 +764,7 @@ enum {
FLAG_EFS_ENABLE,
FLAG_DEFER_SETUP,
FLAG_LE_CONN_REQ_SENT,
+ FLAG_EXT_FLOWCTL_CONN_REQ_SENT,
FLAG_PENDING_SECURITY,
FLAG_HOLD_HCI_CONN,
};
--
2.21.0
