NFC: hci: Add cmd_received handler

When a command is received, it is sometime needed to let the CLF driver do
some additional operations. (ex: count remaining pipe notification...)
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

include/net/nfc/hci.h

@@ -53,6 +53,8 @@ struct nfc_hci_ops {
 			      struct nfc_target *target);
 	int (*event_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
 			      struct sk_buff *skb);
+	void (*cmd_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
+			    struct sk_buff *skb);
 	int (*fw_download)(struct nfc_hci_dev *hdev, const char *firmware_name);
 	int (*discover_se)(struct nfc_hci_dev *dev);
 	int (*enable_se)(struct nfc_hci_dev *dev, u32 se_idx);
@@ -230,6 +232,12 @@ void nfc_hci_reset_pipes_per_host(struct nfc_hci_dev *hdev, u8 host);
 #define NFC_HCI_EVT_POST_DATA			0x02
 #define NFC_HCI_EVT_HOT_PLUG			0x03
 
+/* Generic commands */
+#define NFC_HCI_ANY_SET_PARAMETER	0x01
+#define NFC_HCI_ANY_GET_PARAMETER	0x02
+#define NFC_HCI_ANY_OPEN_PIPE		0x03
+#define NFC_HCI_ANY_CLOSE_PIPE		0x04
+
 /* Reader RF gates events */
 #define NFC_HCI_EVT_READER_REQUESTED	0x10
 #define NFC_HCI_EVT_END_OPERATION	0x11

net/nfc/hci/core.c

@@ -249,6 +249,9 @@ void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
 		break;
 	}
 
+	if (hdev->ops->cmd_received)
+		hdev->ops->cmd_received(hdev, pipe, cmd, skb);
+
 exit:
 	nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_RESPONSE,
 			       status, NULL, 0, NULL, NULL, 0);