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Bluetooth: Store latency and supervision timeout in connection params

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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 <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-06-29 16:43:26 +02:00
parent 1c1697c0ca
commit f044eb0524
3 changed files with 18 additions and 2 deletions
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2
include/net/bluetooth/hci_core.h
View file

@ -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,

16
net/bluetooth/hci_conn.c
View file

@ -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;
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);

2
net/bluetooth/hci_core.c
View file

@ -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) {