NFC: nci: Add RF NFCEE action notification support

The NFCC sends an NCI_OP_RF_NFCEE_ACTION_NTF notification
to the host (DH) to let it know that for example an RF
transaction with a payment reader is done.
For now the notification handler is empty.

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

include/net/nfc/nci.h

@@ -499,6 +499,14 @@ struct nci_rf_deactivate_ntf {
 	__u8	reason;
 } __packed;
 
+#define NCI_OP_RF_NFCEE_ACTION_NTF	nci_opcode_pack(NCI_GID_RF_MGMT, 0x09)
+struct nci_rf_nfcee_action_ntf {
+	__u8 nfcee_id;
+	__u8 trigger;
+	__u8 supported_data_length;
+	__u8 supported_data[0];
+} __packed;
+
 #define NCI_OP_NFCEE_DISCOVER_NTF nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00)
 struct nci_nfcee_supported_protocol {
 	__u8	num_protocol;

net/nfc/nci/ntf.c

@@ -752,6 +752,12 @@ exit:
 	nci_req_complete(ndev, status);
 }
 
+static void nci_nfcee_action_ntf_packet(struct nci_dev *ndev,
+					struct sk_buff *skb)
+{
+	pr_debug("\n");
+}
+
 void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
 {
 	__u16 ntf_opcode = nci_opcode(skb->data);
@@ -793,6 +799,11 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
 	case NCI_OP_NFCEE_DISCOVER_NTF:
 		nci_nfcee_discover_ntf_packet(ndev, skb);
 		break;
+
+	case NCI_OP_RF_NFCEE_ACTION_NTF:
+		nci_nfcee_action_ntf_packet(ndev, skb);
+		break;
+
 	default:
 		pr_err("unknown ntf opcode 0x%x\n", ntf_opcode);
 		break;