NFC: nci: Change NCI state machine to LISTEN_ACTIVE
When receiving an interface activation notification, if
the RF interface is NCI_RF_INTERFACE_NFCEE_DIRECT, we
need to ignore the following parameters and change the NCI
state machine to NCI_LISTEN_ACTIVE. According to the NCI
specification, the parameters should be 0 and shall be
ignored.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index 5924b81..33f5f00 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -541,6 +541,13 @@
pr_debug("rf_tech_specific_params_len %d\n",
ntf.rf_tech_specific_params_len);
+ /* If this contains a value of 0x00 (NFCEE Direct RF
+ * Interface) then all following parameters SHALL contain a
+ * value of 0 and SHALL be ignored.
+ */
+ if (ntf.rf_interface == NCI_RF_INTERFACE_NFCEE_DIRECT)
+ goto listen;
+
if (ntf.rf_tech_specific_params_len > 0) {
switch (ntf.activation_rf_tech_and_mode) {
case NCI_NFC_A_PASSIVE_POLL_MODE:
@@ -653,6 +660,7 @@
nci_req_complete(ndev, err);
}
} else {
+listen:
/* Listen mode */
atomic_set(&ndev->state, NCI_LISTEN_ACTIVE);
if (err == NCI_STATUS_OK &&