Bluetooth: AMP: Create Physical Link

When receiving A2MP Get AMP Assoc Response execute HCI Create Physical
Link to AMP controller. Define function which will run when receiving
HCI Command Status.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

4 files changed, 32 insertions, 0 deletions

diff --git a/include/net/bluetooth/amp.h b/include/net/bluetooth/amp.h
index 763b4635c304..cadb3d032856 100644
--- a/include/net/bluetooth/amp.h
+++ b/include/net/bluetooth/amp.h
@@ -37,5 +37,7 @@ int phylink_gen_key(struct hci_conn *hcon, u8 *data, u8 *len, u8 *type);
 void amp_read_loc_info(struct hci_dev *hdev, struct amp_mgr *mgr);
 void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle);
 void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr);
+void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+                        struct hci_conn *hcon);
 
 #endif /* __AMP_H */
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 93adaad782ed..773e8fc41670 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -392,6 +392,8 @@ static int a2mp_getampassoc_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
 
         BT_DBG("Created hcon %p: loc:%d -> rem:%d", hcon, hdev->id, rsp->id);
 
+        amp_create_phylink(hdev, mgr, hcon);
+
 done:
         hci_dev_put(hdev);
         skb_pull(skb, len);
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index 67bc2c2f8783..657ec736bbc6 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -232,3 +232,22 @@ void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr)
         mgr->state = READ_LOC_AMP_ASSOC;
         hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
 }
+
+void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+                        struct hci_conn *hcon)
+{
+        struct hci_cp_create_phy_link cp;
+
+        cp.phy_handle = hcon->handle;
+
+        BT_DBG("%s hcon %p phy handle 0x%2.2x", hdev->name, hcon,
+               hcon->handle);
+
+        if (phylink_gen_key(mgr->l2cap_conn->hcon, cp.key, &cp.key_len,
+                            &cp.key_type)) {
+                BT_DBG("Cannot create link key");
+                return;
+        }
+
+        hci_send_cmd(hdev, HCI_OP_CREATE_PHY_LINK, sizeof(cp), &cp);
+}
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index a4240f7a142e..bd06ef95693d 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1698,6 +1698,11 @@ static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
         BT_DBG("%s status 0x%2.2x", hdev->name, status);
 }
 
+static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
+{
+        BT_DBG("%s status 0x%2.2x", hdev->name, status);
+}
+
 static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
         __u8 status = *((__u8 *) skb->data);
@@ -2512,6 +2517,10 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
                 hci_cs_le_start_enc(hdev, ev->status);
                 break;
 
+        case HCI_OP_CREATE_PHY_LINK:
+                hci_cs_create_phylink(hdev, ev->status);
+                break;
+
         default:
                 BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
                 break;