diff options
author | David S. Miller <davem@davemloft.net> | 2015-02-07 22:22:25 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2015-02-07 22:22:25 -0800 |
commit | 3c09e92fb6b94b7597442c1f232a260c35b30698 (patch) | |
tree | d26115f0e99cb8e5529e0fd37596b0d4592511b2 /include/net | |
parent | 020219a69d40a205dad12b0ea1e6a46153793368 (diff) | |
parent | fa00e8fed457841cb24219dbe3cfba7d56de6317 (diff) |
Merge tag 'nfc-next-3.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next
NFC: 3.20 second pull request
This is the second NFC pull request for 3.20.
It brings:
- NCI NFCEE (NFC Execution Environment, typically an embedded or
external secure element) discovery and enabling/disabling support.
In order to communicate with an NFCEE, we also added NCI's logical
connections support to the NCI stack.
- HCI over NCI protocol support. Some secure elements only understand
HCI and thus we need to send them HCI frames when they're part of
an NCI chipset.
- NFC_EVT_TRANSACTION userspace API addition. Whenever an application
running on a secure element needs to notify its host counterpart,
we send an NFC_EVENT_SE_TRANSACTION event to userspace through the
NFC netlink socket.
- Secure element and HCI transaction event support for the st21nfcb
chipset.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r-- | include/net/nfc/nci.h | 97 | ||||
-rw-r--r-- | include/net/nfc/nci_core.h | 137 | ||||
-rw-r--r-- | include/net/nfc/nfc.h | 27 |
3 files changed, 254 insertions, 7 deletions
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h index e7257a4653b4..a2f2f3d3196d 100644 --- a/include/net/nfc/nci.h +++ b/include/net/nfc/nci.h @@ -62,6 +62,25 @@ #define NCI_STATUS_NFCEE_PROTOCOL_ERROR 0xc2 #define NCI_STATUS_NFCEE_TIMEOUT_ERROR 0xc3 +/* NFCEE Interface/Protocols */ +#define NCI_NFCEE_INTERFACE_APDU 0x00 +#define NCI_NFCEE_INTERFACE_HCI_ACCESS 0x01 +#define NCI_NFCEE_INTERFACE_TYPE3_CMD_SET 0x02 +#define NCI_NFCEE_INTERFACE_TRANSPARENT 0x03 + +/* Destination type */ +#define NCI_DESTINATION_NFCC_LOOPBACK 0x01 +#define NCI_DESTINATION_REMOTE_NFC_ENDPOINT 0x02 +#define NCI_DESTINATION_NFCEE 0x03 + +/* Destination-specific parameters type */ +#define NCI_DESTINATION_SPECIFIC_PARAM_RF_TYPE 0x00 +#define NCI_DESTINATION_SPECIFIC_PARAM_NFCEE_TYPE 0x01 + +/* NFCEE Discovery Action */ +#define NCI_NFCEE_DISCOVERY_ACTION_DISABLE 0x00 +#define NCI_NFCEE_DISCOVERY_ACTION_ENABLE 0x01 + /* NCI RF Technology and Mode */ #define NCI_NFC_A_PASSIVE_POLL_MODE 0x00 #define NCI_NFC_B_PASSIVE_POLL_MODE 0x01 @@ -224,6 +243,28 @@ struct nci_core_set_config_cmd { struct set_config_param param; /* support 1 param per cmd is enough */ } __packed; +#define NCI_OP_CORE_CONN_CREATE_CMD nci_opcode_pack(NCI_GID_CORE, 0x04) +#define DEST_SPEC_PARAMS_ID_INDEX 0 +#define DEST_SPEC_PARAMS_PROTOCOL_INDEX 1 +struct dest_spec_params { + __u8 id; + __u8 protocol; +} __packed; + +struct core_conn_create_dest_spec_params { + __u8 type; + __u8 length; + __u8 value[0]; +} __packed; + +struct nci_core_conn_create_cmd { + __u8 destination_type; + __u8 number_destination_params; + struct core_conn_create_dest_spec_params params[0]; +} __packed; + +#define NCI_OP_CORE_CONN_CLOSE_CMD nci_opcode_pack(NCI_GID_CORE, 0x05) + #define NCI_OP_RF_DISCOVER_MAP_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x00) struct disc_map_config { __u8 rf_protocol; @@ -260,6 +301,19 @@ struct nci_rf_deactivate_cmd { __u8 type; } __packed; +#define NCI_OP_NFCEE_DISCOVER_CMD nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00) +struct nci_nfcee_discover_cmd { + __u8 discovery_action; +} __packed; + +#define NCI_OP_NFCEE_MODE_SET_CMD nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x01) +#define NCI_NFCEE_DISABLE 0x00 +#define NCI_NFCEE_ENABLE 0x01 +struct nci_nfcee_mode_set_cmd { + __u8 nfcee_id; + __u8 nfcee_mode; +} __packed; + /* ----------------------- */ /* ---- NCI Responses ---- */ /* ----------------------- */ @@ -295,6 +349,16 @@ struct nci_core_set_config_rsp { __u8 params_id[0]; /* variable size array */ } __packed; +#define NCI_OP_CORE_CONN_CREATE_RSP nci_opcode_pack(NCI_GID_CORE, 0x04) +struct nci_core_conn_create_rsp { + __u8 status; + __u8 max_ctrl_pkt_payload_len; + __u8 credits_cnt; + __u8 conn_id; +} __packed; + +#define NCI_OP_CORE_CONN_CLOSE_RSP nci_opcode_pack(NCI_GID_CORE, 0x05) + #define NCI_OP_RF_DISCOVER_MAP_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x00) #define NCI_OP_RF_DISCOVER_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x03) @@ -303,6 +367,13 @@ struct nci_core_set_config_rsp { #define NCI_OP_RF_DEACTIVATE_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x06) +#define NCI_OP_NFCEE_DISCOVER_RSP nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00) +struct nci_nfcee_discover_rsp { + __u8 status; + __u8 num_nfcee; +} __packed; + +#define NCI_OP_NFCEE_MODE_SET_RSP nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x01) /* --------------------------- */ /* ---- NCI Notifications ---- */ /* --------------------------- */ @@ -430,4 +501,30 @@ 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; + __u8 supported_protocol[0]; +} __packed; + +struct nci_nfcee_information_tlv { + __u8 num_tlv; + __u8 information_tlv[0]; +} __packed; + +struct nci_nfcee_discover_ntf { + __u8 nfcee_id; + __u8 nfcee_status; + struct nci_nfcee_supported_protocol supported_protocols; + struct nci_nfcee_information_tlv information_tlv; +} __packed; + #endif /* __NCI_H */ diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h index 9e51bb4d841e..ff87f8611fa3 100644 --- a/include/net/nfc/nci_core.h +++ b/include/net/nfc/nci_core.h @@ -78,15 +78,107 @@ struct nci_ops { int (*se_io)(struct nci_dev *ndev, u32 se_idx, u8 *apdu, size_t apdu_length, se_io_cb_t cb, void *cb_context); + int (*hci_load_session)(struct nci_dev *ndev); + void (*hci_event_received)(struct nci_dev *ndev, u8 pipe, u8 event, + struct sk_buff *skb); + void (*hci_cmd_received)(struct nci_dev *ndev, u8 pipe, u8 cmd, + struct sk_buff *skb); }; #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 + +#define NCI_HCI_ANY_OPEN_PIPE 0x03 + +/* Gates */ +#define NCI_HCI_ADMIN_GATE 0x00 +#define NCI_HCI_LINK_MGMT_GATE 0x06 + +/* Pipes */ +#define NCI_HCI_LINK_MGMT_PIPE 0x00 +#define NCI_HCI_ADMIN_PIPE 0x01 + +/* Generic responses */ +#define NCI_HCI_ANY_OK 0x00 +#define NCI_HCI_ANY_E_NOT_CONNECTED 0x01 +#define NCI_HCI_ANY_E_CMD_PAR_UNKNOWN 0x02 +#define NCI_HCI_ANY_E_NOK 0x03 +#define NCI_HCI_ANY_E_PIPES_FULL 0x04 +#define NCI_HCI_ANY_E_REG_PAR_UNKNOWN 0x05 +#define NCI_HCI_ANY_E_PIPE_NOT_OPENED 0x06 +#define NCI_HCI_ANY_E_CMD_NOT_SUPPORTED 0x07 +#define NCI_HCI_ANY_E_INHIBITED 0x08 +#define NCI_HCI_ANY_E_TIMEOUT 0x09 +#define NCI_HCI_ANY_E_REG_ACCESS_DENIED 0x0a +#define NCI_HCI_ANY_E_PIPE_ACCESS_DENIED 0x0b + +#define NCI_HCI_DO_NOT_OPEN_PIPE 0x81 +#define NCI_HCI_INVALID_PIPE 0x80 +#define NCI_HCI_INVALID_GATE 0xFF +#define NCI_HCI_INVALID_HOST 0x80 + +#define NCI_HCI_MAX_CUSTOM_GATES 50 +#define NCI_HCI_MAX_PIPES 127 + +struct nci_hci_gate { + u8 gate; + u8 pipe; + u8 dest_host; +} __packed; + +struct nci_hci_pipe { + u8 gate; + u8 host; +} __packed; + +struct nci_hci_init_data { + u8 gate_count; + struct nci_hci_gate gates[NCI_HCI_MAX_CUSTOM_GATES]; + char session_id[9]; +}; + +#define NCI_HCI_MAX_GATES 256 + +struct nci_hci_dev { + u8 nfcee_id; + struct nci_dev *ndev; + struct nci_conn_info *conn_info; + + struct nci_hci_init_data init_data; + struct nci_hci_pipe pipes[NCI_HCI_MAX_PIPES]; + u8 gate2pipe[NCI_HCI_MAX_GATES]; + int expected_pipes; + int count_pipes; + + struct sk_buff_head rx_hcp_frags; + struct work_struct msg_rx_work; + struct sk_buff_head msg_rx_queue; +}; /* NCI Core structures */ struct nci_dev { struct nfc_dev *nfc_dev; struct nci_ops *ops; + struct nci_hci_dev *hci_dev; int tx_headroom; int tx_tailroom; @@ -95,7 +187,10 @@ 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 nci_conn_info *rf_conn_info; struct timer_list cmd_timer; struct timer_list data_timer; @@ -141,13 +236,10 @@ 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 */ @@ -163,9 +255,36 @@ struct nci_dev *nci_allocate_device(struct nci_ops *ops, void nci_free_device(struct nci_dev *ndev); int nci_register_device(struct nci_dev *ndev); void nci_unregister_device(struct nci_dev *ndev); +int nci_request(struct nci_dev *ndev, + void (*req)(struct nci_dev *ndev, + unsigned long opt), + unsigned long opt, __u32 timeout); 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); +int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode); +int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type, + u8 number_destination_params, + size_t params_len, + struct core_conn_create_dest_spec_params *params); +int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id); + +struct nci_hci_dev *nci_hci_allocate(struct nci_dev *ndev); +int nci_hci_send_event(struct nci_dev *ndev, u8 gate, u8 event, + const u8 *param, size_t param_len); +int nci_hci_send_cmd(struct nci_dev *ndev, u8 gate, + u8 cmd, const u8 *param, size_t param_len, + struct sk_buff **skb); +int nci_hci_open_pipe(struct nci_dev *ndev, u8 pipe); +int nci_hci_connect_gate(struct nci_dev *ndev, u8 dest_host, + u8 dest_gate, u8 pipe); +int nci_hci_set_param(struct nci_dev *ndev, u8 gate, u8 idx, + const u8 *param, size_t param_len); +int nci_hci_get_param(struct nci_dev *ndev, u8 gate, u8 idx, + struct sk_buff **skb); +int nci_hci_dev_session_init(struct nci_dev *ndev); + static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev, unsigned int len, gfp_t how) @@ -200,7 +319,9 @@ 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_hci_data_received_cb(void *context, struct sk_buff *skb, int err); + void nci_clear_target_list(struct nci_dev *ndev); /* ----- NCI requests ----- */ @@ -209,6 +330,8 @@ 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); diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h index 12adb817c27a..73190e65d5c1 100644 --- a/include/net/nfc/nfc.h +++ b/include/net/nfc/nfc.h @@ -135,6 +135,31 @@ struct nfc_se { u16 state; }; +/** + * nfc_evt_transaction - A struct for NFC secure element event transaction. + * + * @aid: The application identifier triggering the event + * + * @aid_len: The application identifier length [5:16] + * + * @params: The application parameters transmitted during the transaction + * + * @params_len: The applications parameters length [0:255] + * + */ +#define NFC_MIN_AID_LENGTH 5 +#define NFC_MAX_AID_LENGTH 16 +#define NFC_MAX_PARAMS_LENGTH 255 + +#define NFC_EVT_TRANSACTION_AID_TAG 0x81 +#define NFC_EVT_TRANSACTION_PARAMS_TAG 0x82 +struct nfc_evt_transaction { + u32 aid_len; + u8 aid[NFC_MAX_AID_LENGTH]; + u8 params_len; + u8 params[NFC_MAX_PARAMS_LENGTH]; +} __packed; + struct nfc_genl_data { u32 poll_req_portid; struct mutex genl_data_mutex; @@ -262,6 +287,8 @@ int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb); void nfc_driver_failure(struct nfc_dev *dev, int err); +int nfc_se_transaction(struct nfc_dev *dev, u8 se_idx, + struct nfc_evt_transaction *evt_transaction); int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type); int nfc_remove_se(struct nfc_dev *dev, u32 se_idx); struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx); |