diff options
| author | Jaikumar Ganesh <jaikumar@google.com> | 2011-05-23 18:06:04 -0700 |
|---|---|---|
| committer | Jaikumar Ganesh <jaikumar@google.com> | 2011-07-11 11:59:17 -0700 |
| commit | 514abe61e146e18b256782fe959d8686a420c133 (patch) | |
| tree | 9cb3da70369da648c6f4305614388f4ee0d15714 /include/net | |
| parent | 9f449e005059cd645b6ebbb44bd51bc4a60e7d73 (diff) | |
Bluetooth: Add BT_POWER L2CAP socket option.
Add BT_POWER socket option used to control the power
characteristics of the underlying ACL link. When the remote end
has put the link in sniff mode and the host stack wants to send
data we need need to explicitly exit sniff mode to work well with
certain devices (For example, A2DP on Plantronics Voyager 855).
However, this causes problems with HID devices.
Hence, moving into active mode when sending data, irrespective
of who set the sniff mode has been made as a socket option. By
default, we will move into active mode. HID devices can set the
L2CAP socket option to prevent this from happening.
Currently, this has been implemented for L2CAP sockets. This has been
tested with incoming and outgoing L2CAP sockets for HID and A2DP.
Based on discussions on linux-bluetooth and patches submitted by
Andrei Emeltchenko.
Signed-off-by: Jaikumar Ganesh <jaikumar@google.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/bluetooth/bluetooth.h | 8 | ||||
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 2 | ||||
| -rw-r--r-- | include/net/bluetooth/l2cap.h | 1 |
3 files changed, 10 insertions, 1 deletions
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 43750439c52..af930a3a66b 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -69,6 +69,13 @@ struct bt_security { #define BT_FLUSHABLE_OFF 0 #define BT_FLUSHABLE_ON 1 +#define BT_POWER 9 +struct bt_power { + __u8 force_active; +}; +#define BT_POWER_FORCE_ACTIVE_OFF 0 +#define BT_POWER_FORCE_ACTIVE_ON 1 + #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg) #define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg) #define BT_DBG(fmt, arg...) pr_debug("%s: " fmt "\n" , __func__ , ## arg) @@ -150,6 +157,7 @@ struct bt_skb_cb { __u8 retries; __u8 sar; unsigned short channel; + __u8 force_active; }; #define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb)) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 924e1720567..c325c12cfd5 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -441,7 +441,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); int hci_conn_change_link_key(struct hci_conn *conn); int hci_conn_switch_role(struct hci_conn *conn, __u8 role); -void hci_conn_enter_active_mode(struct hci_conn *conn); +void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); void hci_conn_enter_sniff_mode(struct hci_conn *conn); void hci_conn_hold_device(struct hci_conn *conn); diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index a2dcbfff1c5..0529d278e06 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -303,6 +303,7 @@ struct l2cap_chan { __u8 role_switch; __u8 force_reliable; __u8 flushable; + __u8 force_active; __u8 ident; |