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authorChristophe Ricard <christophe.ricard@gmail.com>2015-02-01 22:26:16 +0100
committerSamuel Ortiz <sameo@linux.intel.com>2015-02-02 21:50:40 +0100
commit447b27c4f29b510b98e99395120d635f009ed563 (patch)
tree07c6b790944aa9bb1c3a44e7f7f93da03982735c /include/net/nfc
parent8ae01f7967718ac9ed800a99964f88c0c8b07e11 (diff)
downloadlinux-447b27c4f29b510b98e99395120d635f009ed563.tar.bz2
NFC: Forward NFC_EVT_TRANSACTION to user space
NFC_EVT_TRANSACTION is sent through netlink in order for a specific application running on a secure element to notify userspace of an event. Typically the secure element application counterpart on the host could interpret that event and act upon it. Forwarded information contains: - SE host generating the event - Application IDentifier doing the operation - Applications parameters 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/nfc.h27
1 files changed, 27 insertions, 0 deletions
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);