a768851f94
Fix the build failures that result from the use of pr_debug without the referenced char * arrays being defined. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
247 lines
6.8 KiB
C
247 lines
6.8 KiB
C
/*********************************************************************
|
|
*
|
|
* Filename: ircomm_event.c
|
|
* Version: 1.0
|
|
* Description: IrCOMM layer state machine
|
|
* Status: Stable
|
|
* Author: Dag Brattli <dagb@cs.uit.no>
|
|
* Created at: Sun Jun 6 20:33:11 1999
|
|
* Modified at: Sun Dec 12 13:44:32 1999
|
|
* Modified by: Dag Brattli <dagb@cs.uit.no>
|
|
*
|
|
* Copyright (c) 1999 Dag Brattli, All Rights Reserved.
|
|
*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
********************************************************************/
|
|
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <net/irda/irda.h>
|
|
#include <net/irda/irlmp.h>
|
|
#include <net/irda/iriap.h>
|
|
#include <net/irda/irttp.h>
|
|
#include <net/irda/irias_object.h>
|
|
|
|
#include <net/irda/ircomm_core.h>
|
|
#include <net/irda/ircomm_event.h>
|
|
|
|
static int ircomm_state_idle(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info);
|
|
static int ircomm_state_waiti(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info);
|
|
static int ircomm_state_waitr(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info);
|
|
static int ircomm_state_conn(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info);
|
|
|
|
const char *const ircomm_state[] = {
|
|
"IRCOMM_IDLE",
|
|
"IRCOMM_WAITI",
|
|
"IRCOMM_WAITR",
|
|
"IRCOMM_CONN",
|
|
};
|
|
|
|
static const char *const ircomm_event[] __maybe_unused = {
|
|
"IRCOMM_CONNECT_REQUEST",
|
|
"IRCOMM_CONNECT_RESPONSE",
|
|
"IRCOMM_TTP_CONNECT_INDICATION",
|
|
"IRCOMM_LMP_CONNECT_INDICATION",
|
|
"IRCOMM_TTP_CONNECT_CONFIRM",
|
|
"IRCOMM_LMP_CONNECT_CONFIRM",
|
|
|
|
"IRCOMM_LMP_DISCONNECT_INDICATION",
|
|
"IRCOMM_TTP_DISCONNECT_INDICATION",
|
|
"IRCOMM_DISCONNECT_REQUEST",
|
|
|
|
"IRCOMM_TTP_DATA_INDICATION",
|
|
"IRCOMM_LMP_DATA_INDICATION",
|
|
"IRCOMM_DATA_REQUEST",
|
|
"IRCOMM_CONTROL_REQUEST",
|
|
"IRCOMM_CONTROL_INDICATION",
|
|
};
|
|
|
|
static int (*state[])(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info) =
|
|
{
|
|
ircomm_state_idle,
|
|
ircomm_state_waiti,
|
|
ircomm_state_waitr,
|
|
ircomm_state_conn,
|
|
};
|
|
|
|
/*
|
|
* Function ircomm_state_idle (self, event, skb)
|
|
*
|
|
* IrCOMM is currently idle
|
|
*
|
|
*/
|
|
static int ircomm_state_idle(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (event) {
|
|
case IRCOMM_CONNECT_REQUEST:
|
|
ircomm_next_state(self, IRCOMM_WAITI);
|
|
ret = self->issue.connect_request(self, skb, info);
|
|
break;
|
|
case IRCOMM_TTP_CONNECT_INDICATION:
|
|
case IRCOMM_LMP_CONNECT_INDICATION:
|
|
ircomm_next_state(self, IRCOMM_WAITR);
|
|
ircomm_connect_indication(self, skb, info);
|
|
break;
|
|
default:
|
|
pr_debug("%s(), unknown event: %s\n", __func__ ,
|
|
ircomm_event[event]);
|
|
ret = -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Function ircomm_state_waiti (self, event, skb)
|
|
*
|
|
* The IrCOMM user has requested an IrCOMM connection to the remote
|
|
* device and is awaiting confirmation
|
|
*/
|
|
static int ircomm_state_waiti(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (event) {
|
|
case IRCOMM_TTP_CONNECT_CONFIRM:
|
|
case IRCOMM_LMP_CONNECT_CONFIRM:
|
|
ircomm_next_state(self, IRCOMM_CONN);
|
|
ircomm_connect_confirm(self, skb, info);
|
|
break;
|
|
case IRCOMM_TTP_DISCONNECT_INDICATION:
|
|
case IRCOMM_LMP_DISCONNECT_INDICATION:
|
|
ircomm_next_state(self, IRCOMM_IDLE);
|
|
ircomm_disconnect_indication(self, skb, info);
|
|
break;
|
|
default:
|
|
pr_debug("%s(), unknown event: %s\n", __func__ ,
|
|
ircomm_event[event]);
|
|
ret = -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Function ircomm_state_waitr (self, event, skb)
|
|
*
|
|
* IrCOMM has received an incoming connection request and is awaiting
|
|
* response from the user
|
|
*/
|
|
static int ircomm_state_waitr(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (event) {
|
|
case IRCOMM_CONNECT_RESPONSE:
|
|
ircomm_next_state(self, IRCOMM_CONN);
|
|
ret = self->issue.connect_response(self, skb);
|
|
break;
|
|
case IRCOMM_DISCONNECT_REQUEST:
|
|
ircomm_next_state(self, IRCOMM_IDLE);
|
|
ret = self->issue.disconnect_request(self, skb, info);
|
|
break;
|
|
case IRCOMM_TTP_DISCONNECT_INDICATION:
|
|
case IRCOMM_LMP_DISCONNECT_INDICATION:
|
|
ircomm_next_state(self, IRCOMM_IDLE);
|
|
ircomm_disconnect_indication(self, skb, info);
|
|
break;
|
|
default:
|
|
pr_debug("%s(), unknown event = %s\n", __func__ ,
|
|
ircomm_event[event]);
|
|
ret = -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Function ircomm_state_conn (self, event, skb)
|
|
*
|
|
* IrCOMM is connected to the peer IrCOMM device
|
|
*
|
|
*/
|
|
static int ircomm_state_conn(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info)
|
|
{
|
|
int ret = 0;
|
|
|
|
switch (event) {
|
|
case IRCOMM_DATA_REQUEST:
|
|
ret = self->issue.data_request(self, skb, 0);
|
|
break;
|
|
case IRCOMM_TTP_DATA_INDICATION:
|
|
ircomm_process_data(self, skb);
|
|
break;
|
|
case IRCOMM_LMP_DATA_INDICATION:
|
|
ircomm_data_indication(self, skb);
|
|
break;
|
|
case IRCOMM_CONTROL_REQUEST:
|
|
/* Just send a separate frame for now */
|
|
ret = self->issue.data_request(self, skb, skb->len);
|
|
break;
|
|
case IRCOMM_TTP_DISCONNECT_INDICATION:
|
|
case IRCOMM_LMP_DISCONNECT_INDICATION:
|
|
ircomm_next_state(self, IRCOMM_IDLE);
|
|
ircomm_disconnect_indication(self, skb, info);
|
|
break;
|
|
case IRCOMM_DISCONNECT_REQUEST:
|
|
ircomm_next_state(self, IRCOMM_IDLE);
|
|
ret = self->issue.disconnect_request(self, skb, info);
|
|
break;
|
|
default:
|
|
pr_debug("%s(), unknown event = %s\n", __func__ ,
|
|
ircomm_event[event]);
|
|
ret = -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Function ircomm_do_event (self, event, skb)
|
|
*
|
|
* Process event
|
|
*
|
|
*/
|
|
int ircomm_do_event(struct ircomm_cb *self, IRCOMM_EVENT event,
|
|
struct sk_buff *skb, struct ircomm_info *info)
|
|
{
|
|
pr_debug("%s: state=%s, event=%s\n", __func__ ,
|
|
ircomm_state[self->state], ircomm_event[event]);
|
|
|
|
return (*state[self->state])(self, event, skb, info);
|
|
}
|
|
|
|
/*
|
|
* Function ircomm_next_state (self, state)
|
|
*
|
|
* Switch state
|
|
*
|
|
*/
|
|
void ircomm_next_state(struct ircomm_cb *self, IRCOMM_STATE state)
|
|
{
|
|
self->state = state;
|
|
|
|
pr_debug("%s: next state=%s, service type=%d\n", __func__ ,
|
|
ircomm_state[self->state], self->service_type);
|
|
}
|