NFC: st21nfca: Improve load_session

In case anybody uses previous patchset with the CLF, add a check to make sure
missing pipe are created.
st21nfca returns its pipe list in the creation order (most recent latest).

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/st21nfca/st21nfca.c b/drivers/nfc/st21nfca/st21nfca.c
index 201a3ea..d9ee3d0 100644 (file)
--- a/drivers/nfc/st21nfca/st21nfca.c
+++ b/drivers/nfc/st21nfca/st21nfca.c
@@ -61,10 +61,10 @@
 static DECLARE_BITMAP(dev_mask, ST21NFCA_NUM_DEVICES);
 
 static struct nfc_hci_gate st21nfca_gates[] = {
-       {NFC_HCI_ADMIN_GATE, NFC_HCI_INVALID_PIPE},
+       {NFC_HCI_ADMIN_GATE, NFC_HCI_ADMIN_PIPE},
        {NFC_HCI_LOOPBACK_GATE, NFC_HCI_INVALID_PIPE},
        {NFC_HCI_ID_MGMT_GATE, NFC_HCI_INVALID_PIPE},
-       {NFC_HCI_LINK_MGMT_GATE, NFC_HCI_INVALID_PIPE},
+       {NFC_HCI_LINK_MGMT_GATE, NFC_HCI_LINK_MGMT_PIPE},
        {NFC_HCI_RF_READER_B_GATE, NFC_HCI_INVALID_PIPE},
        {NFC_HCI_RF_READER_A_GATE, NFC_HCI_INVALID_PIPE},
        {ST21NFCA_DEVICE_MGNT_GATE, ST21NFCA_DEVICE_MGNT_PIPE},
@@ -170,6 +170,23 @@ static int st21nfca_hci_load_session(struct nfc_hci_dev *hdev)
                                st21nfca_gates[j].pipe;
                }
        }
+
+       /*
+        * 3 gates have a well known pipe ID.
+        * They will never appear in the pipe list
+        */
+       if (skb_pipe_list->len + 3 < ARRAY_SIZE(st21nfca_gates)) {
+               for (i = skb_pipe_list->len + 3;
+                               i < ARRAY_SIZE(st21nfca_gates); i++) {
+                       r = nfc_hci_connect_gate(hdev,
+                                       NFC_HCI_HOST_CONTROLLER_ID,
+                                       st21nfca_gates[i].gate,
+                                       st21nfca_gates[i].pipe);
+                       if (r < 0)
+                               goto free_info;
+               }
+       }
+
        memcpy(hdev->init_data.gates, st21nfca_gates, sizeof(st21nfca_gates));
 free_info:
        kfree_skb(skb_pipe_info);