/*
 * Copyright (C) ST-Ericsson AB 2010
 * Author:	Sjur Brendeland
 * License terms: GNU General Public License (GPL) version 2
 */

#define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <net/caif/caif_layer.h>
#include <net/caif/cfsrvl.h>
#include <net/caif/cfpkt.h>

#define container_obj(layr) ((struct cfsrvl *) layr)

static int cfvidl_receive(struct cflayer *layr, struct cfpkt *pkt);
static int cfvidl_transmit(struct cflayer *layr, struct cfpkt *pkt);

struct cflayer *cfvidl_create(u8 channel_id, struct dev_info *dev_info)
{
	struct cfsrvl *vid = kzalloc(sizeof(struct cfsrvl), GFP_ATOMIC);
	if (!vid)
		return NULL;
	caif_assert(offsetof(struct cfsrvl, layer) == 0);

	cfsrvl_init(vid, channel_id, dev_info, false);
	vid->layer.receive = cfvidl_receive;
	vid->layer.transmit = cfvidl_transmit;
	snprintf(vid->layer.name, CAIF_LAYER_NAME_SZ - 1, "vid1");
	return &vid->layer;
}

static int cfvidl_receive(struct cflayer *layr, struct cfpkt *pkt)
{
	u32 videoheader;
	if (cfpkt_extr_head(pkt, &videoheader, 4) < 0) {
		pr_err("Packet is erroneous!\n");
		cfpkt_destroy(pkt);
		return -EPROTO;
	}
	return layr->up->receive(layr->up, pkt);
}

static int cfvidl_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
	struct cfsrvl *service = container_obj(layr);
	struct caif_payload_info *info;
	u32 videoheader = 0;
	int ret;

	if (!cfsrvl_ready(service, &ret)) {
		cfpkt_destroy(pkt);
		return ret;
	}

	cfpkt_add_head(pkt, &videoheader, 4);
	/* Add info for MUX-layer to route the packet out */
	info = cfpkt_info(pkt);
	info->channel_id = service->layer.id;
	info->dev_info = &service->dev_info;
	return layr->dn->transmit(layr->dn, pkt);
}
</a><a href='/cgit.cgi/linux/net-next.git/tree/net/ipv4?h=nds-private-remove&amp;id=521613c5684068f2003d38b84c9a317b3d53948d'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=521613c5684068f2003d38b84c9a317b3d53948d'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/ipv4?h=nds-private-remove&amp;id=521613c5684068f2003d38b84c9a317b3d53948d'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/ipv4'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=521613c5684068f2003d38b84c9a317b3d53948d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=521613c5684068f2003d38b84c9a317b3d53948d'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4?h=nds-private-remove&amp;id=521613c5684068f2003d38b84c9a317b3d53948d'>ipv4</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4?h=nds-private-remove&amp;id=521613c5684068f2003d38b84c9a317b3d53948d&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2017-02-03 16:58:20 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=52e01b84a244473074fc0612c169e2e043d58b01'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next</a></td><td>David S. Miller</td><td>9</td><td><span class='deletions'>-47</span>/<span class='insertions'>+31</span></td></tr>
<tr><td><span title='2017-02-03 16:23:57 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=38ab52e8e1e2dd65f2d349f82553335813b638d2'>tcp: clear pfmemalloc on outgoing skb</a></td><td>Eric Dumazet</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+7</span></td></tr>
<tr><td><span title='2017-02-03 11:19:34 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=3541f9e8bdebce02458882b66b638d7302c1f616'>tcp: add tcp_mss_clamp() helper</a></td><td>Eric Dumazet</td><td>3</td><td><span class='deletions'>-19</span>/<span class='insertions'>+7</span></td></tr>
<tr><td><span title='2017-02-02 23:34:19 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>net: add LINUX_MIB_PFMEMALLOCDROP counter</a></td><td>Eric Dumazet</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2017-02-02 23:09:08 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=661091093918657ab544fb8ca91a5ab172a986dc'>net: ipv4: remove fib_lookup.h from devinet.c include list</a></td><td>David Ahern</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+0</span></td></tr>
<tr><td><span title='2017-02-02 16:54:00 -0500'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=e2160156bf2a7d5018e99a9993fbcdda0abac09b'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</a></td><td>David S. Miller</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2017-02-02 14:31:58 +0100'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=2851940ffee313e0ff12540a8e11a8c54dea9c65'>netfilter: allow logging from non-init namespaces</a></td><td>Michal Kubeček</td><td>2</td><td><span class='deletions'>-2</span>/<span class='insertions'>+2</span></td></tr>
<tr><td><span title='2017-02-02 14:31:54 +0100'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c'>netfilter: add and use nf_ct_set helper</a></td><td>Florian Westphal</td><td>3</td><td><span class='deletions'>-6</span>/<span class='insertions'>+3</span></td></tr>
<tr><td><span title='2017-02-02 14:31:53 +0100'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>skbuff: add and use skb_nfct helper</a></td><td>Florian Westphal</td><td>4</td><td><span class='deletions'>-8</span>/<span class='insertions'>+8</span></td></tr>
<tr><td><span title='2017-02-02 14:31:51 +0100'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=6e10148c5c85629832d9156f337cbf67e96b69fe'>netfilter: reset netfilter state when duplicating packet</a></td><td>Florian Westphal</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2017-02-02 14:31:51 +0100'>2017-02-02</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?h=nds-private-remove&amp;id=11df4b760f11ca7528c62b1c4b870735d1c62116'>netfilter: conntrack: no need to pass ctinfo to error handler</a></td><td>Florian Westphal</td><td>1</td><td><span class='deletions'>-6</span>/<span class='insertions'>+6</span></td></tr>