[net-next-2.6.git] / net / irda / ircomm / ircomm_lmp.c

/*********************************************************************
 *
 * Filename:      ircomm_lmp.c
 * Version:       1.0
 * Description:   Interface between IrCOMM and IrLMP
 * Status:        Stable
 * Author:        Dag Brattli <dagb@cs.uit.no>
 * Created at:    Sun Jun  6 20:48:27 1999
 * Modified at:   Sun Dec 12 13:44:17 1999
 * Modified by:   Dag Brattli <dagb@cs.uit.no>
 * Sources:       Previous IrLPT work by Thomas Davis
 *
 *     Copyright (c) 1999 Dag Brattli, All Rights Reserved.
 *     Copyright (c) 2000-2003 Jean Tourrilhes <jt@hpl.hp.com>
 *
 *     This program is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU General Public License as
 *     published by the Free Software Foundation; either version 2 of
 *     the License, or (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program; if not, write to the Free Software
 *     Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *     MA 02111-1307 USA
 *
 ********************************************************************/

#include <linux/init.h>
#include <linux/gfp.h>

#include <net/irda/irda.h>
#include <net/irda/irlmp.h>
#include <net/irda/iriap.h>
#include <net/irda/irda_device.h>	/* struct irda_skb_cb */

#include <net/irda/ircomm_event.h>
#include <net/irda/ircomm_lmp.h>


/*
 * Function ircomm_lmp_connect_request (self, userdata)
 *
 *
 *
 */
static int ircomm_lmp_connect_request(struct ircomm_cb *self,
				      struct sk_buff *userdata,
				      struct ircomm_info *info)
{
	int ret = 0;

	IRDA_DEBUG(0, "%s()\n", __func__ );

	/* Don't forget to refcount it - should be NULL anyway */
	if(userdata)
		skb_get(userdata);

	ret = irlmp_connect_request(self->lsap, info->dlsap_sel,
				    info->saddr, info->daddr, NULL, userdata);
	return ret;
}

/*
 * Function ircomm_lmp_connect_response (self, skb)
 *
 *
 *
 */
static int ircomm_lmp_connect_response(struct ircomm_cb *self,
				       struct sk_buff *userdata)
{
	struct sk_buff *tx_skb;
	int ret;

	IRDA_DEBUG(0, "%s()\n", __func__ );

	/* Any userdata supplied? */
	if (userdata == NULL) {
		tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
		if (!tx_skb)
			return -ENOMEM;

		/* Reserve space for MUX and LAP header */
		skb_reserve(tx_skb, LMP_MAX_HEADER);
	} else {
		/*
		 *  Check that the client has reserved enough space for
		 *  headers
		 */
		IRDA_ASSERT(skb_headroom(userdata) >= LMP_MAX_HEADER,
			    return -1;);

		/* Don't forget to refcount it - should be NULL anyway */
		skb_get(userdata);
		tx_skb = userdata;
	}

	ret = irlmp_connect_response(self->lsap, tx_skb);

	return 0;
}

static int ircomm_lmp_disconnect_request(struct ircomm_cb *self,
					 struct sk_buff *userdata,
					 struct ircomm_info *info)
{
	struct sk_buff *tx_skb;
	int ret;

	IRDA_DEBUG(0, "%s()\n", __func__ );

	if (!userdata) {
		tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
		if (!tx_skb)
			return -ENOMEM;

		/*  Reserve space for MUX and LAP header */
		skb_reserve(tx_skb, LMP_MAX_HEADER);
		userdata = tx_skb;
	} else {
		/* Don't forget to refcount it - should be NULL anyway */
		skb_get(userdata);
	}

	ret = irlmp_disconnect_request(self->lsap, userdata);

	return ret;
}

/*
 * Function ircomm_lmp_flow_control (skb)
 *
 *    This function is called when a data frame we have sent to IrLAP has
 *    been deallocated. We do this to make sure we don't flood IrLAP with
 *    frames, since we are not using the IrTTP flow control mechanism
 */
static void ircomm_lmp_flow_control(struct sk_buff *skb)
{
	struct irda_skb_cb *cb;
	struct ircomm_cb *self;
	int line;

	IRDA_ASSERT(skb != NULL, return;);

	cb = (struct irda_skb_cb *) skb->cb;

	IRDA_DEBUG(2, "%s()\n", __func__ );

	line = cb->line;

	self = (struct ircomm_cb *) hashbin_lock_find(ircomm, line, NULL);
	if (!self) {
		IRDA_DEBUG(2, "%s(), didn't find myself\n", __func__ );
		return;
	}

	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);

	self->pkt_count--;

	if ((self->pkt_count < 2) && (self->flow_status == FLOW_STOP)) {
		IRDA_DEBUG(2, "%s(), asking TTY to start again!\n", __func__ );
		self->flow_status = FLOW_START;
		if (self->notify.flow_indication)
			self->notify.flow_indication(self->notify.instance,
						     self, FLOW_START);
	}
}

/*
 * Function ircomm_lmp_data_request (self, userdata)
 *
 *    Send data frame to peer device
 *
 */
static int ircomm_lmp_data_request(struct ircomm_cb *self,
				   struct sk_buff *skb,
				   int not_used)
{
	struct irda_skb_cb *cb;
	int ret;

	IRDA_ASSERT(skb != NULL, return -1;);

	cb = (struct irda_skb_cb *) skb->cb;

	cb->line = self->line;

	IRDA_DEBUG(4, "%s(), sending frame\n", __func__ );

	/* Don't forget to refcount it - see ircomm_tty_do_softint() */
	skb_get(skb);

	skb_orphan(skb);
	skb->destructor = ircomm_lmp_flow_control;

	if ((self->pkt_count++ > 7) && (self->flow_status == FLOW_START)) {
		IRDA_DEBUG(2, "%s(), asking TTY to slow down!\n", __func__ );
		self->flow_status = FLOW_STOP;
		if (self->notify.flow_indication)
			self->notify.flow_indication(self->notify.instance,
						     self, FLOW_STOP);
	}
	ret = irlmp_data_request(self->lsap, skb);
	if (ret) {
		IRDA_ERROR("%s(), failed\n", __func__);
		/* irlmp_data_request already free the packet */
	}

	return ret;
}

/*
 * Function ircomm_lmp_data_indication (instance, sap, skb)
 *
 *    Incoming data which we must deliver to the state machine, to check
 *    we are still connected.
 */
static int ircomm_lmp_data_indication(void *instance, void *sap,
				      struct sk_buff *skb)
{
	struct ircomm_cb *self = (struct ircomm_cb *) instance;

	IRDA_DEBUG(4, "%s()\n", __func__ );

	IRDA_ASSERT(self != NULL, return -1;);
	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -1;);
	IRDA_ASSERT(skb != NULL, return -1;);

	ircomm_do_event(self, IRCOMM_LMP_DATA_INDICATION, skb, NULL);

	/* Drop reference count - see ircomm_tty_data_indication(). */
	dev_kfree_skb(skb);

	return 0;
}

/*
 * Function ircomm_lmp_connect_confirm (instance, sap, qos, max_sdu_size,
 *                                       max_header_size, skb)
 *
 *    Connection has been confirmed by peer device
 *
 */
static void ircomm_lmp_connect_confirm(void *instance, void *sap,
				       struct qos_info *qos,
				       __u32 max_seg_size,
				       __u8 max_header_size,
				       struct sk_buff *skb)
{
	struct ircomm_cb *self = (struct ircomm_cb *) instance;
	struct ircomm_info info;

	IRDA_DEBUG(0, "%s()\n", __func__ );

	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
	IRDA_ASSERT(skb != NULL, return;);
	IRDA_ASSERT(qos != NULL, return;);

	info.max_data_size = max_seg_size;
	info.max_header_size = max_header_size;
	info.qos = qos;

	ircomm_do_event(self, IRCOMM_LMP_CONNECT_CONFIRM, skb, &info);

	/* Drop reference count - see ircomm_tty_connect_confirm(). */
	dev_kfree_skb(skb);
}

/*
 * Function ircomm_lmp_connect_indication (instance, sap, qos, max_sdu_size,
 *                                         max_header_size, skb)
 *
 *    Peer device wants to make a connection with us
 *
 */
static void ircomm_lmp_connect_indication(void *instance, void *sap,
					  struct qos_info *qos,
					  __u32 max_seg_size,
					  __u8 max_header_size,
					  struct sk_buff *skb)
{
	struct ircomm_cb *self = (struct ircomm_cb *)instance;
	struct ircomm_info info;

	IRDA_DEBUG(0, "%s()\n", __func__ );

	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
	IRDA_ASSERT(skb != NULL, return;);
	IRDA_ASSERT(qos != NULL, return;);

	info.max_data_size = max_seg_size;
	info.max_header_size = max_header_size;
	info.qos = qos;

	ircomm_do_event(self, IRCOMM_LMP_CONNECT_INDICATION, skb, &info);

	/* Drop reference count - see ircomm_tty_connect_indication(). */
	dev_kfree_skb(skb);
}

/*
 * Function ircomm_lmp_disconnect_indication (instance, sap, reason, skb)
 *
 *    Peer device has closed the connection, or the link went down for some
 *    other reason
 */
static void ircomm_lmp_disconnect_indication(void *instance, void *sap,
					     LM_REASON reason,
					     struct sk_buff *skb)
{
	struct ircomm_cb *self = (struct ircomm_cb *) instance;
	struct ircomm_info info;

	IRDA_DEBUG(0, "%s()\n", __func__ );

	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);

	info.reason = reason;

	ircomm_do_event(self, IRCOMM_LMP_DISCONNECT_INDICATION, skb, &info);

	/* Drop reference count - see ircomm_tty_disconnect_indication(). */
	if(skb)
		dev_kfree_skb(skb);
}
/*
 * Function ircomm_open_lsap (self)
 *
 *    Open LSAP. This function will only be used when using "raw" services
 *
 */
int ircomm_open_lsap(struct ircomm_cb *self)
{
	notify_t notify;

	IRDA_DEBUG(0, "%s()\n", __func__ );

	/* Register callbacks */
	irda_notify_init(&notify);
	notify.data_indication       = ircomm_lmp_data_indication;
	notify.connect_confirm       = ircomm_lmp_connect_confirm;
	notify.connect_indication    = ircomm_lmp_connect_indication;
	notify.disconnect_indication = ircomm_lmp_disconnect_indication;
	notify.instance = self;
	strlcpy(notify.name, "IrCOMM", sizeof(notify.name));

	self->lsap = irlmp_open_lsap(LSAP_ANY, &notify, 0);
	if (!self->lsap) {
		IRDA_DEBUG(0,"%sfailed to allocate tsap\n", __func__ );
		return -1;
	}
	self->slsap_sel = self->lsap->slsap_sel;

	/*
	 *  Initialize the call-table for issuing commands
	 */
	self->issue.data_request       = ircomm_lmp_data_request;
	self->issue.connect_request    = ircomm_lmp_connect_request;
	self->issue.connect_response   = ircomm_lmp_connect_response;
	self->issue.disconnect_request = ircomm_lmp_disconnect_request;

	return 0;
}
Commit	Line	Data
1da177e4	1	/*********************************************************************
6819bc2e	2	*
1da177e4 LT	3	* Filename: ircomm_lmp.c
	4	* Version: 1.0
	5	* Description: Interface between IrCOMM and IrLMP
	6	* Status: Stable
	7	* Author: Dag Brattli <dagb@cs.uit.no>
	8	* Created at: Sun Jun 6 20:48:27 1999
	9	* Modified at: Sun Dec 12 13:44:17 1999
	10	* Modified by: Dag Brattli <dagb@cs.uit.no>
	11	* Sources: Previous IrLPT work by Thomas Davis
6819bc2e	12	*
1da177e4 LT	13	* Copyright (c) 1999 Dag Brattli, All Rights Reserved.
1da177e4 LT	14	* Copyright (c) 2000-2003 Jean Tourrilhes <jt@hpl.hp.com>
6819bc2e YH	15	*
	16	* This program is free software; you can redistribute it and/or
	17	* modify it under the terms of the GNU General Public License as
	18	* published by the Free Software Foundation; either version 2 of
1da177e4	19	* the License, or (at your option) any later version.
6819bc2e	20	*
1da177e4 LT	21	* This program is distributed in the hope that it will be useful,
	22	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	23	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	24	* GNU General Public License for more details.
6819bc2e YH	25	*
	26	* You should have received a copy of the GNU General Public License
	27	* along with this program; if not, write to the Free Software
	28	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
1da177e4	29	* MA 02111-1307 USA
6819bc2e	30	*
1da177e4 LT	31	********************************************************************/
1da177e4 LT	32
1da177e4	33	#include <linux/init.h>
5a0e3ad6	34	#include <linux/gfp.h>
1da177e4 LT	35
	36	#include <net/irda/irda.h>
	37	#include <net/irda/irlmp.h>
	38	#include <net/irda/iriap.h>
	39	#include <net/irda/irda_device.h> /* struct irda_skb_cb */
	40
	41	#include <net/irda/ircomm_event.h>
	42	#include <net/irda/ircomm_lmp.h>
	43
	44
	45	/*
	46	* Function ircomm_lmp_connect_request (self, userdata)
	47	*
6819bc2e	48	*
1da177e4 LT	49	*
1da177e4 LT	50	*/
6819bc2e YH	51	static int ircomm_lmp_connect_request(struct ircomm_cb *self,
6819bc2e YH	52	struct sk_buff *userdata,
1da177e4 LT	53	struct ircomm_info *info)
	54	{
	55	int ret = 0;
	56
0dc47877	57	IRDA_DEBUG(0, "%s()\n", __func__ );
1da177e4 LT	58
	59	/* Don't forget to refcount it - should be NULL anyway */
	60	if(userdata)
	61	skb_get(userdata);
	62
	63	ret = irlmp_connect_request(self->lsap, info->dlsap_sel,
6819bc2e	64	info->saddr, info->daddr, NULL, userdata);
1da177e4	65	return ret;
6819bc2e	66	}
1da177e4 LT	67
	68	/*
	69	* Function ircomm_lmp_connect_response (self, skb)
	70	*
6819bc2e	71	*
1da177e4 LT	72	*
	73	*/
	74	static int ircomm_lmp_connect_response(struct ircomm_cb *self,
	75	struct sk_buff *userdata)
	76	{
	77	struct sk_buff *tx_skb;
	78	int ret;
	79
0dc47877	80	IRDA_DEBUG(0, "%s()\n", __func__ );
6819bc2e	81
1da177e4 LT	82	/* Any userdata supplied? */
1da177e4 LT	83	if (userdata == NULL) {
1b0fee7d	84	tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
1da177e4 LT	85	if (!tx_skb)
	86	return -ENOMEM;
	87
	88	/* Reserve space for MUX and LAP header */
	89	skb_reserve(tx_skb, LMP_MAX_HEADER);
	90	} else {
6819bc2e YH	91	/*
6819bc2e YH	92	* Check that the client has reserved enough space for
1da177e4 LT	93	* headers
	94	*/
	95	IRDA_ASSERT(skb_headroom(userdata) >= LMP_MAX_HEADER,
	96	return -1;);
	97
	98	/* Don't forget to refcount it - should be NULL anyway */
	99	skb_get(userdata);
	100	tx_skb = userdata;
	101	}
	102
	103	ret = irlmp_connect_response(self->lsap, tx_skb);
	104
	105	return 0;
	106	}
	107
6819bc2e YH	108	static int ircomm_lmp_disconnect_request(struct ircomm_cb *self,
6819bc2e YH	109	struct sk_buff *userdata,
1da177e4 LT	110	struct ircomm_info *info)
1da177e4 LT	111	{
6819bc2e	112	struct sk_buff *tx_skb;
1da177e4 LT	113	int ret;
1da177e4 LT	114
0dc47877	115	IRDA_DEBUG(0, "%s()\n", __func__ );
1da177e4	116
6819bc2e	117	if (!userdata) {
1b0fee7d	118	tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
1da177e4 LT	119	if (!tx_skb)
1da177e4 LT	120	return -ENOMEM;
6819bc2e	121
1da177e4	122	/* Reserve space for MUX and LAP header */
6819bc2e	123	skb_reserve(tx_skb, LMP_MAX_HEADER);
1da177e4 LT	124	userdata = tx_skb;
	125	} else {
	126	/* Don't forget to refcount it - should be NULL anyway */
	127	skb_get(userdata);
	128	}
	129
	130	ret = irlmp_disconnect_request(self->lsap, userdata);
	131
	132	return ret;
	133	}
	134
	135	/*
	136	* Function ircomm_lmp_flow_control (skb)
	137	*
	138	* This function is called when a data frame we have sent to IrLAP has
6819bc2e	139	* been deallocated. We do this to make sure we don't flood IrLAP with
1da177e4 LT	140	* frames, since we are not using the IrTTP flow control mechanism
	141	*/
	142	static void ircomm_lmp_flow_control(struct sk_buff *skb)
	143	{
	144	struct irda_skb_cb *cb;
	145	struct ircomm_cb *self;
	146	int line;
	147
	148	IRDA_ASSERT(skb != NULL, return;);
	149
	150	cb = (struct irda_skb_cb *) skb->cb;
	151
0dc47877	152	IRDA_DEBUG(2, "%s()\n", __func__ );
6819bc2e YH	153
6819bc2e YH	154	line = cb->line;
1da177e4 LT	155
1da177e4 LT	156	self = (struct ircomm_cb *) hashbin_lock_find(ircomm, line, NULL);
6819bc2e	157	if (!self) {
0dc47877	158	IRDA_DEBUG(2, "%s(), didn't find myself\n", __func__ );
6819bc2e	159	return;
1da177e4 LT	160	}
1da177e4 LT	161
6819bc2e	162	IRDA_ASSERT(self != NULL, return;);
1da177e4 LT	163	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
	164
	165	self->pkt_count--;
	166
6819bc2e	167	if ((self->pkt_count < 2) && (self->flow_status == FLOW_STOP)) {
0dc47877	168	IRDA_DEBUG(2, "%s(), asking TTY to start again!\n", __func__ );
6819bc2e YH	169	self->flow_status = FLOW_START;
	170	if (self->notify.flow_indication)
	171	self->notify.flow_indication(self->notify.instance,
1da177e4	172	self, FLOW_START);
6819bc2e	173	}
1da177e4	174	}
6819bc2e	175
1da177e4 LT	176	/*
	177	* Function ircomm_lmp_data_request (self, userdata)
	178	*
	179	* Send data frame to peer device
	180	*
	181	*/
	182	static int ircomm_lmp_data_request(struct ircomm_cb *self,
6819bc2e	183	struct sk_buff *skb,
1da177e4 LT	184	int not_used)
	185	{
	186	struct irda_skb_cb *cb;
	187	int ret;
	188
	189	IRDA_ASSERT(skb != NULL, return -1;);
	190
	191	cb = (struct irda_skb_cb *) skb->cb;
6819bc2e YH	192
6819bc2e YH	193	cb->line = self->line;
1da177e4	194
0dc47877	195	IRDA_DEBUG(4, "%s(), sending frame\n", __func__ );
1da177e4 LT	196
	197	/* Don't forget to refcount it - see ircomm_tty_do_softint() */
	198	skb_get(skb);
	199
d55d87fd	200	skb_orphan(skb);
1da177e4 LT	201	skb->destructor = ircomm_lmp_flow_control;
1da177e4 LT	202
6819bc2e	203	if ((self->pkt_count++ > 7) && (self->flow_status == FLOW_START)) {
0dc47877	204	IRDA_DEBUG(2, "%s(), asking TTY to slow down!\n", __func__ );
6819bc2e YH	205	self->flow_status = FLOW_STOP;
	206	if (self->notify.flow_indication)
	207	self->notify.flow_indication(self->notify.instance,
	208	self, FLOW_STOP);
	209	}
1da177e4 LT	210	ret = irlmp_data_request(self->lsap, skb);
1da177e4 LT	211	if (ret) {
0dc47877	212	IRDA_ERROR("%s(), failed\n", __func__);
1da177e4 LT	213	/* irlmp_data_request already free the packet */
	214	}
	215
	216	return ret;
	217	}
	218
	219	/*
	220	* Function ircomm_lmp_data_indication (instance, sap, skb)
	221	*
	222	* Incoming data which we must deliver to the state machine, to check
	223	* we are still connected.
	224	*/
	225	static int ircomm_lmp_data_indication(void instance, void sap,
	226	struct sk_buff *skb)
	227	{
	228	struct ircomm_cb self = (struct ircomm_cb ) instance;
	229
0dc47877	230	IRDA_DEBUG(4, "%s()\n", __func__ );
6819bc2e	231
1da177e4 LT	232	IRDA_ASSERT(self != NULL, return -1;);
	233	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -1;);
	234	IRDA_ASSERT(skb != NULL, return -1;);
6819bc2e	235
1da177e4 LT	236	ircomm_do_event(self, IRCOMM_LMP_DATA_INDICATION, skb, NULL);
	237
	238	/* Drop reference count - see ircomm_tty_data_indication(). */
	239	dev_kfree_skb(skb);
	240
	241	return 0;
	242	}
	243
	244	/*
6819bc2e	245	* Function ircomm_lmp_connect_confirm (instance, sap, qos, max_sdu_size,
1da177e4 LT	246	* max_header_size, skb)
	247	*
	248	* Connection has been confirmed by peer device
	249	*
	250	*/
	251	static void ircomm_lmp_connect_confirm(void instance, void sap,
6819bc2e YH	252	struct qos_info *qos,
6819bc2e YH	253	__u32 max_seg_size,
1da177e4 LT	254	__u8 max_header_size,
	255	struct sk_buff *skb)
	256	{
	257	struct ircomm_cb self = (struct ircomm_cb ) instance;
	258	struct ircomm_info info;
	259
0dc47877	260	IRDA_DEBUG(0, "%s()\n", __func__ );
1da177e4 LT	261
	262	IRDA_ASSERT(self != NULL, return;);
	263	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
	264	IRDA_ASSERT(skb != NULL, return;);
	265	IRDA_ASSERT(qos != NULL, return;);
	266
	267	info.max_data_size = max_seg_size;
	268	info.max_header_size = max_header_size;
	269	info.qos = qos;
	270
	271	ircomm_do_event(self, IRCOMM_LMP_CONNECT_CONFIRM, skb, &info);
	272
	273	/* Drop reference count - see ircomm_tty_connect_confirm(). */
	274	dev_kfree_skb(skb);
	275	}
	276
	277	/*
	278	* Function ircomm_lmp_connect_indication (instance, sap, qos, max_sdu_size,
	279	* max_header_size, skb)
	280	*
	281	* Peer device wants to make a connection with us
	282	*
	283	*/
	284	static void ircomm_lmp_connect_indication(void instance, void sap,
	285	struct qos_info *qos,
	286	__u32 max_seg_size,
	287	__u8 max_header_size,
	288	struct sk_buff *skb)
	289	{
	290	struct ircomm_cb self = (struct ircomm_cb )instance;
	291	struct ircomm_info info;
	292
0dc47877	293	IRDA_DEBUG(0, "%s()\n", __func__ );
1da177e4 LT	294
	295	IRDA_ASSERT(self != NULL, return;);
	296	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
	297	IRDA_ASSERT(skb != NULL, return;);
	298	IRDA_ASSERT(qos != NULL, return;);
	299
	300	info.max_data_size = max_seg_size;
	301	info.max_header_size = max_header_size;
	302	info.qos = qos;
	303
	304	ircomm_do_event(self, IRCOMM_LMP_CONNECT_INDICATION, skb, &info);
	305
	306	/* Drop reference count - see ircomm_tty_connect_indication(). */
	307	dev_kfree_skb(skb);
	308	}
	309
	310	/*
	311	* Function ircomm_lmp_disconnect_indication (instance, sap, reason, skb)
	312	*
	313	* Peer device has closed the connection, or the link went down for some
	314	* other reason
	315	*/
6819bc2e	316	static void ircomm_lmp_disconnect_indication(void instance, void sap,
1da177e4 LT	317	LM_REASON reason,
	318	struct sk_buff *skb)
	319	{
	320	struct ircomm_cb self = (struct ircomm_cb ) instance;
	321	struct ircomm_info info;
	322
0dc47877	323	IRDA_DEBUG(0, "%s()\n", __func__ );
1da177e4 LT	324
	325	IRDA_ASSERT(self != NULL, return;);
	326	IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
	327
	328	info.reason = reason;
	329
	330	ircomm_do_event(self, IRCOMM_LMP_DISCONNECT_INDICATION, skb, &info);
	331
	332	/* Drop reference count - see ircomm_tty_disconnect_indication(). */
	333	if(skb)
	334	dev_kfree_skb(skb);
	335	}
	336	/*
	337	* Function ircomm_open_lsap (self)
	338	*
	339	* Open LSAP. This function will only be used when using "raw" services
	340	*
	341	*/
	342	int ircomm_open_lsap(struct ircomm_cb *self)
	343	{
	344	notify_t notify;
	345
0dc47877	346	IRDA_DEBUG(0, "%s()\n", __func__ );
1da177e4 LT	347
	348	/* Register callbacks */
	349	irda_notify_init(&notify);
	350	notify.data_indication = ircomm_lmp_data_indication;
	351	notify.connect_confirm = ircomm_lmp_connect_confirm;
	352	notify.connect_indication = ircomm_lmp_connect_indication;
	353	notify.disconnect_indication = ircomm_lmp_disconnect_indication;
	354	notify.instance = self;
	355	strlcpy(notify.name, "IrCOMM", sizeof(notify.name));
	356
	357	self->lsap = irlmp_open_lsap(LSAP_ANY, &notify, 0);
	358	if (!self->lsap) {
0dc47877	359	IRDA_DEBUG(0,"%sfailed to allocate tsap\n", __func__ );
1da177e4 LT	360	return -1;
	361	}
	362	self->slsap_sel = self->lsap->slsap_sel;
	363
	364	/*
	365	* Initialize the call-table for issuing commands
	366	*/
	367	self->issue.data_request = ircomm_lmp_data_request;
	368	self->issue.connect_request = ircomm_lmp_connect_request;
	369	self->issue.connect_response = ircomm_lmp_connect_response;
	370	self->issue.disconnect_request = ircomm_lmp_disconnect_request;
	371
	372	return 0;
	373	}