[net-next-2.6.git] / net / caif / cfdbgl.c

/*
 * Copyright (C) ST-Ericsson AB 2010
 * Author:	Sjur Brendeland/sjur.brandeland@stericsson.com
 * License terms: GNU General Public License (GPL) version 2
 */

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

#include <linux/stddef.h>
#include <linux/slab.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 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_warn("Out of memory\n");
		return NULL;
	}
	caif_assert(offsetof(struct cfsrvl, layer) == 0);
	memset(dbg, 0, sizeof(struct cfsrvl));
	cfsrvl_init(dbg, channel_id, dev_info, false);
	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)
{
	struct cfsrvl *service = container_obj(layr);
	struct caif_payload_info *info;
	int ret;

	if (!cfsrvl_ready(service, &ret))
		return ret;

	/* 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);
}
Commit	Line	Data
b482cd20 SB	1	/*
	2	* Copyright (C) ST-Ericsson AB 2010
	3	* Author: Sjur Brendeland/sjur.brandeland@stericsson.com
	4	* License terms: GNU General Public License (GPL) version 2
	5	*/
	6
b31fa5ba JP	7	#define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__
b31fa5ba JP	8
b482cd20 SB	9	#include <linux/stddef.h>
	10	#include <linux/slab.h>
	11	#include <net/caif/caif_layer.h>
	12	#include <net/caif/cfsrvl.h>
	13	#include <net/caif/cfpkt.h>
	14
f2527ec4 ACM	15	#define container_obj(layr) ((struct cfsrvl *) layr)
f2527ec4 ACM	16
b482cd20 SB	17	static int cfdbgl_receive(struct cflayer layr, struct cfpkt pkt);
	18	static int cfdbgl_transmit(struct cflayer layr, struct cfpkt pkt);
	19
	20	struct cflayer cfdbgl_create(u8 channel_id, struct dev_info dev_info)
	21	{
	22	struct cfsrvl *dbg = kmalloc(sizeof(struct cfsrvl), GFP_ATOMIC);
	23	if (!dbg) {
b31fa5ba	24	pr_warn("Out of memory\n");
b482cd20 SB	25	return NULL;
	26	}
	27	caif_assert(offsetof(struct cfsrvl, layer) == 0);
	28	memset(dbg, 0, sizeof(struct cfsrvl));
b1c74247	29	cfsrvl_init(dbg, channel_id, dev_info, false);
b482cd20 SB	30	dbg->layer.receive = cfdbgl_receive;
	31	dbg->layer.transmit = cfdbgl_transmit;
	32	snprintf(dbg->layer.name, CAIF_LAYER_NAME_SZ - 1, "dbg%d", channel_id);
	33	return &dbg->layer;
	34	}
	35
	36	static int cfdbgl_receive(struct cflayer layr, struct cfpkt pkt)
	37	{
	38	return layr->up->receive(layr->up, pkt);
	39	}
	40
	41	static int cfdbgl_transmit(struct cflayer layr, struct cfpkt pkt)
	42	{
f2527ec4 ACM	43	struct cfsrvl *service = container_obj(layr);
	44	struct caif_payload_info *info;
	45	int ret;
	46
	47	if (!cfsrvl_ready(service, &ret))
	48	return ret;
	49
	50	/* Add info for MUX-layer to route the packet out */
	51	info = cfpkt_info(pkt);
	52	info->channel_id = service->layer.id;
	53	info->dev_info = &service->dev_info;
	54
b482cd20 SB	55	return layr->dn->transmit(layr->dn, pkt);
b482cd20 SB	56	}