From f044eb0524a02ea7f921c9234fbdba43290da1e2 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Sun, 29 Jun 2014 16:43:26 +0200 Subject: [PATCH] Bluetooth: Store latency and supervision timeout in connection params When the slave updates the connection parameters, store also the connection latency and supervision timeout information in the internal list of connection parameters for known devices. Having these values available allowes the auto-connection procedure to use the correct values from the beginning without having to request an update on every connection establishment. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- include/net/bluetooth/hci_core.h | 2 ++ net/bluetooth/hci_conn.c | 16 ++++++++++++++-- net/bluetooth/hci_core.c | 2 ++ 3 files changed, 18 insertions(+), 2 deletions(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 0906990..1820448 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -439,6 +439,8 @@ struct hci_conn_params { u16 conn_min_interval; u16 conn_max_interval; + u16 conn_latency; + u16 supervision_timeout; enum { HCI_AUTO_CONN_DISABLED, diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 25ee27d..adb413d 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -216,11 +216,23 @@ bool hci_setup_sync(struct hci_conn *conn, __u16 handle) void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, u16 to_multiplier) { - struct hci_cp_le_conn_update cp; struct hci_dev *hdev = conn->hdev; + struct hci_conn_params *params; + struct hci_cp_le_conn_update cp; - memset(&cp, 0, sizeof(cp)); + hci_dev_lock(hdev); + + params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type); + if (params) { + params->conn_min_interval = min; + params->conn_max_interval = max; + params->conn_latency = latency; + params->supervision_timeout = to_multiplier; + } + hci_dev_unlock(hdev); + + memset(&cp, 0, sizeof(cp)); cp.handle = cpu_to_le16(conn->handle); cp.conn_interval_min = cpu_to_le16(min); cp.conn_interval_max = cpu_to_le16(max); diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index c566b57..97a6453 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3514,6 +3514,8 @@ int hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, update: params->conn_min_interval = conn_min_interval; params->conn_max_interval = conn_max_interval; + params->conn_latency = 0x0000; + params->supervision_timeout = 0x002a; params->auto_connect = auto_connect; switch (auto_connect) { -- 2.7.4