This routine will be called by drivers whenever they receive data in target
mode. This should be unexpected events and as such should be handled by a
standalone API (i.e. not as a callback pointer from an existing API).
Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
---
include/net/nfc/nfc.h | 1 +
net/nfc/core.c | 12 ++++++++++++
net/nfc/llcp/llcp.c | 15 +++++++++++++++
net/nfc/nfc.h | 7 +++++++
4 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 45c4c97..180964b 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -202,5 +202,6 @@ int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
u8 *gb, size_t gb_len);
int nfc_tm_deactivated(struct nfc_dev *dev);
+int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb);
#endif /* __NET_NFC_H */
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 76c1e20..6a3799e 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -462,6 +462,18 @@ u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len)
}
EXPORT_SYMBOL(nfc_get_local_general_bytes);
+int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb)
+{
+ /* Only LLCP target mode for now */
+ if (dev->dep_link_up == false) {
+ kfree_skb(skb);
+ return -ENOLINK;
+ }
+
+ return nfc_llcp_data_received(dev, skb);
+}
+EXPORT_SYMBOL(nfc_tm_data_received);
+
int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
u8 *gb, size_t gb_len)
{
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 5f7aa3f..5705e6d 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -937,6 +937,21 @@ void nfc_llcp_recv(void *data, struct sk_buff *skb, int err)
return;
}
+int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb)
+{
+ struct nfc_llcp_local *local;
+
+ local = nfc_llcp_find_local(dev);
+ if (local == NULL)
+ return -ENODEV;
+
+ local->rx_pending = skb_get(skb);
+ del_timer(&local->link_timer);
+ queue_work(local->rx_wq, &local->rx_work);
+
+ return 0;
+}
+
void nfc_llcp_mac_is_down(struct nfc_dev *dev)
{
struct nfc_llcp_local *local;
diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h
index cd9fcbe..c5e42b7 100644
--- a/net/nfc/nfc.h
+++ b/net/nfc/nfc.h
@@ -55,6 +55,7 @@ int nfc_llcp_register_device(struct nfc_dev *dev);
void nfc_llcp_unregister_device(struct nfc_dev *dev);
int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
+int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
int __init nfc_llcp_init(void);
void nfc_llcp_exit(void);
@@ -90,6 +91,12 @@ static inline u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *gb_len)
return NULL;
}
+static inline int nfc_llcp_data_received(struct nfc_dev *dev,
+ struct sk_buff *skb)
+{
+ return 0;
+}
+
static inline int nfc_llcp_init(void)
{
return 0;
--
1.7.9.1
--
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