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NFC: nci: Add function to get max packet size for conn

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FDP driver needs to send the firmware as regular packets
(not fragmented). The driver should have a way to
get the max packet size for a given connection.

Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Robert Dolca 2015-10-22 12:11:34 +03:00 committed by Samuel Ortiz
parent ea785c094d
commit 2663589ce6
2 changed files with 13 additions and 0 deletions
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1
include/net/nfc/nci_core.h
View File

@ -351,6 +351,7 @@ int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 opcode,
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);
int nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id);
void nci_data_exchange_complete(struct nci_dev *ndev, struct sk_buff *skb,
__u8 conn_id, int err);
void nci_hci_data_received_cb(void *context, struct sk_buff *skb, int err);

12
net/nfc/nci/data.c
View File

@ -90,6 +90,18 @@ static inline void nci_push_data_hdr(struct nci_dev *ndev,
nci_pbf_set((__u8 *)hdr, pbf);
}
int nci_conn_max_data_pkt_payload_size(struct nci_dev *ndev, __u8 conn_id)
{
struct nci_conn_info *conn_info;
conn_info = nci_get_conn_info_by_conn_id(ndev, conn_id);
if (!conn_info)
return -EPROTO;
return conn_info->max_pkt_payload_len;
}
EXPORT_SYMBOL(nci_conn_max_data_pkt_payload_size);
static int nci_queue_tx_data_frags(struct nci_dev *ndev,
__u8 conn_id,
struct sk_buff *skb) {