lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Bluetooth: Defer SCO setup if mode change is pending

Browse Source 
Certain headsets such as the Motorola H350 will reject SCO and eSCO
connection requests while the ACL is transitioning from sniff mode
to active mode. Add synchronization so that SCO and eSCO connection
requests will wait until the ACL has fully transitioned to active mode.

< HCI Command: Exit Sniff Mode (0x02|0x0004) plen 2
    handle 12
> HCI Event: Command Status (0x0f) plen 4
    Exit Sniff Mode (0x02|0x0004) status 0x00 ncmd 1
< HCI Command:  Setup Synchronous Connection (0x01|0x0028) plen 17
    handle 12 voice setting 0x0040
> HCI Event: Command Status (0x0f) plen 4
    Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1
> HCI Event: Number of Completed Packets (0x13) plen 5
    handle 12 packets 1
> HCI Event: Mode Change (0x14) plen 6
    status 0x00 handle 12 mode 0x00 interval 0
    Mode: Active
> HCI Event: Synchronous Connect Complete (0x2c) plen 17
    status 0x10 handle 14 bdaddr 00:1A:0E:50:28:A4 type SCO
    Error: Connection Accept Timeout Exceeded

Signed-off-by: Ron Shaffer <rshaffer@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann
2010-07-26 10:06:00 -04:00
parent 800f65bba8
commit e73439d8c0
3 changed files with 45 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@ -256,6 +256,7 @@ enum {
HCI_CONN_ENCRYPT_PEND,
HCI_CONN_RSWITCH_PEND,
HCI_CONN_MODE_CHANGE_PEND,
HCI_CONN_SCO_SETUP_PEND,
};
static inline void hci_conn_hash_init(struct hci_dev *hdev)
@ -336,6 +337,7 @@ void hci_acl_connect(struct hci_conn *conn);
void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
void hci_add_sco(struct hci_conn *conn, __u16 handle);
void hci_setup_sync(struct hci_conn *conn, __u16 handle);
void hci_sco_setup(struct hci_conn *conn, __u8 status);
struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
int hci_conn_del(struct hci_conn *conn);