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net-caif: add CAIF core protocol stack

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CAIF generic protocol implementation. This layer is
somewhat generic in order to be able to use and test it outside
the Linux Kernel.

cfctrl.c     - CAIF control protocol layer
cfdbgl.c     - CAIF debug protocol layer
cfdgml.c     - CAIF datagram protocol layer
cffrml.c     - CAIF framing protocol layer
cfmuxl.c     - CAIF mux protocol layer
cfrfml.c     - CAIF remote file manager protocol layer
cfserl.c     - CAIF serial (fragmentation) protocol layer
cfsrvl.c     - CAIF generic service layer functions
cfutill.c    - CAIF utility protocol layer
cfveil.c     - CAIF AT protocol layer
cfvidl.c     - CAIF video protocol layer

Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sjur Braendeland
2010-03-30 13:56:23 +00:00
committed by David S. Miller
parent 2721c5b9dd
commit b482cd2053
11 changed files with 1981 additions and 0 deletions
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40
net/caif/cfdbgl.c Normal file
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/*
* Copyright (C) ST-Ericsson AB 2010
* Author: Sjur Brendeland/sjur.brandeland@stericsson.com
* License terms: GNU General Public License (GPL) version 2
*/
#include <linux/stddef.h>
#include <linux/slab.h>
#include <net/caif/caif_layer.h>
#include <net/caif/cfsrvl.h>
#include <net/caif/cfpkt.h>
static int cfdbgl_receive(struct cflayer *layr, struct cfpkt *pkt);
static int cfdbgl_transmit(struct cflayer *layr, struct cfpkt *pkt);
struct cflayer *cfdbgl_create(u8 channel_id, struct dev_info *dev_info)
{
struct cfsrvl *dbg = kmalloc(sizeof(struct cfsrvl), GFP_ATOMIC);
if (!dbg) {
pr_warning("CAIF: %s(): Out of memory\n", __func__);
return NULL;
}
caif_assert(offsetof(struct cfsrvl, layer) == 0);
memset(dbg, 0, sizeof(struct cfsrvl));
cfsrvl_init(dbg, channel_id, dev_info);
dbg->layer.receive = cfdbgl_receive;
dbg->layer.transmit = cfdbgl_transmit;
snprintf(dbg->layer.name, CAIF_LAYER_NAME_SZ - 1, "dbg%d", channel_id);
return &dbg->layer;
}
static int cfdbgl_receive(struct cflayer *layr, struct cfpkt *pkt)
{
return layr->up->receive(layr->up, pkt);
}
static int cfdbgl_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
return layr->dn->transmit(layr->dn, pkt);
}