diff options
| author |   sjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com> | 2011-12-04 11:22:53 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-12-05 18:27:56 -0500 |
| commit | 7ad65bf68d705b445ef10b77ab50dab22be185ee (patch) | |
| tree | ba354482821d658d6b9b6a4214d3dd4ba543ee23 /net/caif/cfpkt_skbuff.c | |
| parent | if_ether.h: Add IEEE 802.1 Local Experimental Ethertype 1. (diff) | |
| download | linux-dev-7ad65bf68d705b445ef10b77ab50dab22be185ee.tar.xz linux-dev-7ad65bf68d705b445ef10b77ab50dab22be185ee.zip | |
caif: Add support for CAIF over CDC NCM USB interface
NCM 1.0 does not support anything but Ethernet framing, hence
CAIF payload will be put into Ethernet frames.
Discovery is based on fixed USB vendor 0x04cc (ST-Ericsson),
product-id 0x230f (NCM). In this variant only CAIF payload is sent over
the NCM interface.
The CAIF stack (cfusbl.c) will when USB interface register first check if
we got a CDC NCM USB interface with the right VID, PID.
It will then read the device's Ethernet address and create a 'template'
Ethernet TX header, using a broadcast address as the destination address,
and EthType 0x88b5 (802.1 Local Experimental - vendor specific).
A protocol handler for 0x88b5 is setup for reception of CAIF frames from
the CDC NCM USB interface.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/caif/cfpkt_skbuff.c')
| -rw-r--r-- | net/caif/cfpkt_skbuff.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/net/caif/cfpkt_skbuff.c b/net/caif/cfpkt_skbuff.c index de5390700cfe..e335ba859b97 100644 --- a/net/caif/cfpkt_skbuff.c +++ b/net/caif/cfpkt_skbuff.c @@ -63,7 +63,6 @@ static inline struct cfpkt *skb_to_pkt(struct sk_buff *skb) return (struct cfpkt *) skb; } - struct cfpkt *cfpkt_fromnative(enum caif_direction dir, void *nativepkt) { struct cfpkt *pkt = skb_to_pkt(nativepkt); @@ -105,14 +104,12 @@ void cfpkt_destroy(struct cfpkt *pkt) kfree_skb(skb); } - inline bool cfpkt_more(struct cfpkt *pkt) { struct sk_buff *skb = pkt_to_skb(pkt); return skb->len > 0; } - int cfpkt_peek_head(struct cfpkt *pkt, void *data, u16 len) { struct sk_buff *skb = pkt_to_skb(pkt); @@ -148,6 +145,7 @@ int cfpkt_extr_head(struct cfpkt *pkt, void *data, u16 len) memcpy(data, from, len); return 0; } +EXPORT_SYMBOL(cfpkt_extr_head); int cfpkt_extr_trail(struct cfpkt *pkt, void *dta, u16 len) { @@ -171,13 +169,11 @@ int cfpkt_extr_trail(struct cfpkt *pkt, void *dta, u16 len) return 0; } - int cfpkt_pad_trail(struct cfpkt *pkt, u16 len) { return cfpkt_add_body(pkt, NULL, len); } - int cfpkt_add_body(struct cfpkt *pkt, const void *data, u16 len) { struct sk_buff *skb = pkt_to_skb(pkt); @@ -256,21 +252,19 @@ int cfpkt_add_head(struct cfpkt *pkt, const void *data2, u16 len) memcpy(to, data, len); return 0; } - +EXPORT_SYMBOL(cfpkt_add_head); inline int cfpkt_add_trail(struct cfpkt *pkt, const void *data, u16 len) { return cfpkt_add_body(pkt, data, len); } - inline u16 cfpkt_getlen(struct cfpkt *pkt) { struct sk_buff *skb = pkt_to_skb(pkt); return skb->len; } - inline u16 cfpkt_iterate(struct cfpkt *pkt, u16 (*iter_func)(u16, void *, u16), u16 data) @@ -288,7 +282,6 @@ inline u16 cfpkt_iterate(struct cfpkt *pkt, return iter_func(data, pkt->skb.data, cfpkt_getlen(pkt)); } - int cfpkt_setlen(struct cfpkt *pkt, u16 len) { struct sk_buff *skb = pkt_to_skb(pkt); @@ -400,3 +393,4 @@ struct caif_payload_info *cfpkt_info(struct cfpkt *pkt) { return (struct caif_payload_info *)&pkt_to_skb(pkt)->cb; } +EXPORT_SYMBOL(cfpkt_info); |