NFC: nci: Add NFCEE discover support

[firefly-linux-kernel-4.4.55.git] / include / net / nfc / nci_core.h

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 9e51bb4d841ea4915c2e70f0d7187b656ae27cab..31ad795aa4b51d8b72cec5150fc181df32d7185c 100644 (file)
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -82,6 +82,25 @@ struct nci_ops {
 
 #define NCI_MAX_SUPPORTED_RF_INTERFACES                4
 #define NCI_MAX_DISCOVERED_TARGETS             10
+#define NCI_MAX_NUM_NFCEE   255
+#define NCI_MAX_CONN_ID                7
+
+struct nci_conn_info {
+       struct list_head list;
+       __u8    id; /* can be an RF Discovery ID or an NFCEE ID */
+       __u8    conn_id;
+       __u8    max_pkt_payload_len;
+
+       atomic_t credits_cnt;
+       __u8     initial_num_credits;
+
+       data_exchange_cb_t      data_exchange_cb;
+       void *data_exchange_cb_context;
+
+       struct sk_buff *rx_skb;
+};
+
+#define NCI_INVALID_CONN_ID 0x80
 
 /* NCI Core structures */
 struct nci_dev {
@@ -95,7 +114,9 @@ struct nci_dev {
        unsigned long           flags;
 
        atomic_t                cmd_cnt;
-       atomic_t                credits_cnt;
+       __u8                    cur_conn_id;
+
+       struct list_head        conn_info_list;
 
        struct timer_list       cmd_timer;
        struct timer_list       data_timer;
@@ -141,13 +162,10 @@ struct nci_dev {
        __u8                    manufact_id;
        __u32                   manufact_specific_info;
 
-       /* received during NCI_OP_RF_INTF_ACTIVATED_NTF */
-       __u8                    max_data_pkt_payload_size;
-       __u8                    initial_num_credits;
+       /* Save RF Discovery ID or NFCEE ID under conn_create */
+       __u8                    cur_id;
 
        /* stored during nci_data_exchange */
-       data_exchange_cb_t      data_exchange_cb;
-       void                    *data_exchange_cb_context;
        struct sk_buff          *rx_data_reassembly;
 
        /* stored during intf_activated_ntf */
@@ -166,6 +184,8 @@ void nci_unregister_device(struct nci_dev *ndev);
 int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
 int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val);
 
+int nci_nfcee_discover(struct nci_dev *ndev, u8 action);
+
 static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev,
                                            unsigned int len,
                                            gfp_t how)
@@ -200,7 +220,7 @@ void nci_rx_data_packet(struct nci_dev *ndev, struct sk_buff *skb);
 int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload);
 int nci_send_data(struct nci_dev *ndev, __u8 conn_id, struct sk_buff *skb);
 void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
-                               int err);
+                               __u8 conn_id, int err);
 void nci_clear_target_list(struct nci_dev *ndev);
 
 /* ----- NCI requests ----- */
@@ -209,6 +229,8 @@ void nci_clear_target_list(struct nci_dev *ndev);
 #define NCI_REQ_CANCELED       2
 
 void nci_req_complete(struct nci_dev *ndev, int result);
+struct nci_conn_info *nci_get_conn_info_by_conn_id(struct nci_dev *ndev,
+                                                  int conn_id);
 
 /* ----- NCI status code ----- */
 int nci_to_errno(__u8 code);