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Bluetooth: Send LE Connection Update Command 

If the new connection update parameter are accepted, the LE master
host sends the LE Connection Update Command to its controller informing
the new requested parameters.

Signed-off-by: Claudio Takahasi <claudio.takahasi@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Claudio Takahasi 2011-02-16 20:44:53 -02:00 committed by Gustavo F. Padovan
parent 6bd32326cd
commit 2ce603ebe1
4 changed files with 40 additions and 1 deletions
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11
include/net/bluetooth/hci.h
View File

@ -677,6 +677,17 @@ struct hci_cp_le_create_conn {
#define HCI_OP_LE_CREATE_CONN_CANCEL 0x200e
#define HCI_OP_LE_CONN_UPDATE 0x2013
struct hci_cp_le_conn_update {
__le16 handle;
__le16 conn_interval_min;
__le16 conn_interval_max;
__le16 conn_latency;
__le16 supervision_timeout;
__le16 min_ce_len;
__le16 max_ce_len;
} __packed;
/* ---- HCI Events ---- */
#define HCI_EV_INQUIRY_COMPLETE 0x01

2
include/net/bluetooth/hci_core.h
View File

@ -777,4 +777,6 @@ struct hci_sec_filter {
void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
u16 latency, u16 to_multiplier);
#endif /* __HCI_CORE_H */

20
net/bluetooth/hci_conn.c
View File

@ -183,6 +183,26 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp);
}
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;
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);
cp.conn_latency = cpu_to_le16(latency);
cp.supervision_timeout = cpu_to_le16(to_multiplier);
cp.min_ce_len = cpu_to_le16(0x0001);
cp.max_ce_len = cpu_to_le16(0x0001);
hci_send_cmd(hdev, HCI_OP_LE_CONN_UPDATE, sizeof(cp), &cp);
}
EXPORT_SYMBOL(hci_le_conn_update);
/* Device _must_ be locked */
void hci_sco_setup(struct hci_conn *conn, __u8 status)
{

8
net/bluetooth/l2cap_core.c
View File

@ -2529,6 +2529,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
struct l2cap_conn_param_update_req *req;
struct l2cap_conn_param_update_rsp rsp;
u16 min, max, latency, to_multiplier, cmd_len;
int err;
if (!(hcon->link_mode & HCI_LM_MASTER))
return -EINVAL;
@ -2547,7 +2548,9 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
min, max, latency, to_multiplier);
memset(&rsp, 0, sizeof(rsp));
if (l2cap_check_conn_param(min, max, latency, to_multiplier))
err = l2cap_check_conn_param(min, max, latency, to_multiplier);
if (err)
rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_REJECTED);
else
rsp.result = cpu_to_le16(L2CAP_CONN_PARAM_ACCEPTED);
@ -2555,6 +2558,9 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn,
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONN_PARAM_UPDATE_RSP,
sizeof(rsp), &rsp);
if (!err)
hci_le_conn_update(hcon, min, max, latency, to_multiplier);
return 0;
}