NFC: nci: Allow the driver to set handler for core nci ops

The driver may be required to act when some responses or
notifications arrive. For example the NCI core does not have a
handler for NCI_OP_CORE_GET_CONFIG_RSP. The NFCC can send a
config response that has to be read by the driver and the packet
may contain vendor specific data.

The Fields Peak driver needs to take certain actions when a reset
notification arrives (packet also not handled by the nfc core).

The driver handlers do not interfere with the core and they are
called after the core processes the packet.

Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 5b4f48a..30c2708 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -1242,46 +1242,77 @@
 }
 
 /* Proprietary commands API */
-static struct nci_prop_ops *prop_cmd_lookup(struct nci_dev *ndev,
-					    __u16 opcode)
+static struct nci_prop_ops *ops_cmd_lookup(struct nci_prop_ops *ops,
+					   size_t n_ops,
+					   __u16 opcode)
 {
 	size_t i;
-	struct nci_prop_ops *prop_op;
+	struct nci_prop_ops *op;
 
-	if (!ndev->ops->prop_ops || !ndev->ops->n_prop_ops)
+	if (!ops || !n_ops)
 		return NULL;
 
-	for (i = 0; i < ndev->ops->n_prop_ops; i++) {
-		prop_op = &ndev->ops->prop_ops[i];
-		if (prop_op->opcode == opcode)
-			return prop_op;
+	for (i = 0; i < n_ops; i++) {
+		op = &ops[i];
+		if (op->opcode == opcode)
+			return op;
 	}
 
 	return NULL;
 }
 
-int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode,
-			struct sk_buff *skb)
+static int nci_op_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode,
+			     struct sk_buff *skb, struct nci_prop_ops *ops,
+			     size_t n_ops)
 {
-	struct nci_prop_ops *prop_op;
+	struct nci_prop_ops *op;
 
-	prop_op = prop_cmd_lookup(ndev, rsp_opcode);
-	if (!prop_op || !prop_op->rsp)
+	op = ops_cmd_lookup(ops, n_ops, rsp_opcode);
+	if (!op || !op->rsp)
 		return -ENOTSUPP;
 
-	return prop_op->rsp(ndev, skb);
+	return op->rsp(ndev, skb);
 }
 
-int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 ntf_opcode,
-			struct sk_buff *skb)
+static int nci_op_ntf_packet(struct nci_dev *ndev, __u16 ntf_opcode,
+			     struct sk_buff *skb, struct nci_prop_ops *ops,
+			     size_t n_ops)
 {
-	struct nci_prop_ops *prop_op;
+	struct nci_prop_ops *op;
 
-	prop_op = prop_cmd_lookup(ndev, ntf_opcode);
-	if (!prop_op || !prop_op->ntf)
+	op = ops_cmd_lookup(ops, n_ops, ntf_opcode);
+	if (!op || !op->ntf)
 		return -ENOTSUPP;
 
-	return prop_op->ntf(ndev, skb);
+	return op->ntf(ndev, skb);
+}
+
+inline int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+			       struct sk_buff *skb)
+{
+	return nci_op_rsp_packet(ndev, opcode, skb, ndev->ops->prop_ops,
+				 ndev->ops->n_prop_ops);
+}
+
+inline int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+			       struct sk_buff *skb)
+{
+	return nci_op_ntf_packet(ndev, opcode, skb, ndev->ops->prop_ops,
+				 ndev->ops->n_prop_ops);
+}
+
+inline int nci_core_rsp_packet(struct nci_dev *ndev, __u16 opcode,
+			       struct sk_buff *skb)
+{
+	return nci_op_rsp_packet(ndev, opcode, skb, ndev->ops->core_ops,
+				  ndev->ops->n_core_ops);
+}
+
+inline int nci_core_ntf_packet(struct nci_dev *ndev, __u16 opcode,
+			       struct sk_buff *skb)
+{
+	return nci_op_ntf_packet(ndev, opcode, skb, ndev->ops->core_ops,
+				 ndev->ops->n_core_ops);
 }
 
 /* ---- NCI TX Data worker thread ---- */