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| author | Christophe Ricard <christophe.ricard@gmail.com> | 2015-02-01 22:26:08 +0100 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2015-02-02 21:50:31 +0100 |
| commit | 4aeee6871e8c3b043ef02996db8ac70a1af8be92 (patch) | |
| tree | 9a49decf9d2be10bdb6b5ec71dd5959df9b5bc81 /include/net/nfc | |
| parent | 86b3bfe914f41c2d47d5882d06e1261cc58fb5e9 (diff) | |
| download | linux-4aeee6871e8c3b043ef02996db8ac70a1af8be92.tar.gz linux-4aeee6871e8c3b043ef02996db8ac70a1af8be92.tar.xz | |
NFC: nci: Add dynamic logical connections support
The current NCI core only support the RF static connection.
For other NFC features such as Secure Element communication, we
may need to create logical connections to the NFCEE (Execution
Environment.
In order to track each logical connection ID dynamically, we add a
linked list of connection info pointers to the nci_dev structure.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/net/nfc')
| -rw-r--r-- | include/net/nfc/nci_core.h | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h index 9e51bb4d841e..5e508741f208 100644 --- a/include/net/nfc/nci_core.h +++ b/include/net/nfc/nci_core.h @@ -82,6 +82,23 @@ 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; +}; /* NCI Core structures */ struct nci_dev { @@ -95,7 +112,9 @@ 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 +160,10 @@ 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 */ @@ -200,7 +216,7 @@ 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 +225,8 @@ 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); |