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NFC: Move LLCP MIU extension value to socket structure 

The MIU extension value can be received during the PAX or during the
connection establishment process. It's definitely a connection related value
rather than a link one.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz 2012-05-14 17:37:32 +02:00
parent 7a06e586b9
commit 93d7e490b7
4 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
net/nfc/llcp/commands.c
View File

@ -183,6 +183,9 @@ int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock,
pr_debug("type 0x%x length %d\n", type, length);
switch (type) {
case LLCP_TLV_MIUX:
sock->miu = llcp_tlv_miux(tlv) + 128;
break;
case LLCP_TLV_RW:
sock->rw = llcp_tlv_rw(tlv);
break;
@ -197,7 +200,7 @@ int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock,
tlv += length + 2;
}
pr_debug("sock %p rw %d\n", sock, sock->rw);
pr_debug("sock %p rw %d miu %d\n", sock, sock->rw, sock->miu);
return 0;
}
@ -505,7 +508,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
while (remaining_len > 0) {
frag_len = min_t(size_t, local->remote_miu, remaining_len);
frag_len = min_t(size_t, sock->miu, remaining_len);
pr_debug("Fragment %zd bytes remaining %zd",
frag_len, remaining_len);

1
net/nfc/llcp/llcp.c
View File

@ -655,6 +655,7 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local,
new_sock = nfc_llcp_sock(new_sk);
new_sock->dev = local->dev;
new_sock->local = nfc_llcp_local_get(local);
new_sock->miu = local->remote_miu;
new_sock->nfc_protocol = sock->nfc_protocol;
new_sock->ssap = sock->ssap;
new_sock->dsap = ssap;

1
net/nfc/llcp/llcp.h
View File

@ -102,6 +102,7 @@ struct nfc_llcp_sock {
char *service_name;
size_t service_name_len;
u8 rw;
u16 miu;
/* Link variables */
u8 send_n;

2
net/nfc/llcp/sock.c
View File

@ -477,6 +477,7 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
llcp_sock->dev = dev;
llcp_sock->local = nfc_llcp_local_get(local);
llcp_sock->miu = llcp_sock->local->remote_miu;
llcp_sock->ssap = nfc_llcp_get_local_ssap(local);
if (llcp_sock->ssap == LLCP_SAP_MAX) {
ret = -ENOMEM;
@ -679,6 +680,7 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp)
llcp_sock->ssap = 0;
llcp_sock->dsap = LLCP_SAP_SDP;
llcp_sock->rw = LLCP_DEFAULT_RW;
llcp_sock->miu = LLCP_DEFAULT_MIU;
llcp_sock->send_n = llcp_sock->send_ack_n = 0;
llcp_sock->recv_n = llcp_sock->recv_ack_n = 0;
llcp_sock->remote_ready = 1;