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