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| author | Marcel Holtmann <marcel@holtmann.org> | 2014-11-03 05:16:08 +0100 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2014-11-03 10:13:43 +0200 |
| commit | 845472e8d50c898c73b4f69f4edad5249b13d6a9 (patch) | |
| tree | 7df3c2c65552aa09aab6d8d314dc94136fa847b6 /include | |
| parent | 2cbd3f5ccd43ba823e183f98a798d4b23cfb12b8 (diff) | |
| download | linux-845472e8d50c898c73b4f69f4edad5249b13d6a9.tar.gz linux-845472e8d50c898c73b4f69f4edad5249b13d6a9.tar.bz2 linux-845472e8d50c898c73b4f69f4edad5249b13d6a9.zip | |
Bluetooth: Add hci_conn_lookup_type() helper function
Some drivers require knowledge of what connection handle is assigned
to what connection link type (ACL or SCO/eSCO). Instead of having each
driver implement connection tracking, provide a simple helper function
for lookup of the link type.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/bluetooth/hci.h | 1 | ||||
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 2e08f5a89463..d5f85d7746bc 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -274,6 +274,7 @@ enum { /* Low Energy links do not have defined link type. Use invented one */ #define LE_LINK 0x80 #define AMP_LINK 0x81 +#define INVALID_LINK 0xff /* LMP features */ #define LMP_3SLOT 0x01 diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 27ddb905b351..4e39a5adfcab 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -646,6 +646,26 @@ static inline unsigned int hci_conn_count(struct hci_dev *hdev) return c->acl_num + c->amp_num + c->sco_num + c->le_num; } +static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) +{ + struct hci_conn_hash *h = &hdev->conn_hash; + struct hci_conn *c; + __u8 type = INVALID_LINK; + + rcu_read_lock(); + + list_for_each_entry_rcu(c, &h->list, list) { + if (c->handle == handle) { + type = c->type; + break; + } + } + + rcu_read_unlock(); + + return type; +} + static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, __u16 handle) { |