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Bluetooth: AMP: Check that AMP is present and active

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Before starting quering remote AMP controllers make sure
that there is local active AMP controller.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Andrei Emeltchenko
2012-11-29 17:46:05 +02:00
committed by Gustavo Padovan
parent ced5c338d7
commit 5d05416e09
2 changed files with 17 additions and 0 deletions
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16
include/net/bluetooth/hci_core.h
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@@ -779,6 +779,22 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define lmp_host_le_capable(dev) !!((dev)->host_features[0] & LMP_HOST_LE)
#define lmp_host_le_br_capable(dev) !!((dev)->host_features[0] & LMP_HOST_LE_BREDR)
/* returns true if at least one AMP active */
static inline bool hci_amp_capable(void)
{
struct hci_dev *hdev;
bool ret = false;
read_lock(&hci_dev_list_lock);
list_for_each_entry(hdev, &hci_dev_list, list)
if (hdev->amp_type == HCI_AMP &&
test_bit(HCI_UP, &hdev->flags))
ret = true;
read_unlock(&hci_dev_list_lock);
return ret;
}
/* ----- HCI protocols ----- */
#define HCI_PROTO_DEFER 0x01