URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [net/] [irda/] [ircomm/] [ircomm_event.c] - Blame information for rev 1765

Details | Compare with Previous | View Log


/*********************************************************************
 *
 * 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, write to the Free Software
 *     Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *     MA 02111-1307 USA
 *
 ********************************************************************/
 
#include <linux/sched.h>
#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);
 
char *ircomm_state[] = {
        "IRCOMM_IDLE",
        "IRCOMM_WAITI",
        "IRCOMM_WAITR",
        "IRCOMM_CONN",
};
 
char *ircomm_event[] = {
        "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:
                IRDA_DEBUG(4,"%s(), unknown event: %s\n", __FUNCTION__,
                           ircomm_event[event]);
                if (skb)
                        dev_kfree_skb(skb);
                return -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:
                IRDA_DEBUG(0, "%s(), unknown event: %s\n", __FUNCTION__,
                           ircomm_event[event]);
                if (skb)
                        dev_kfree_skb(skb);
                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:
                IRDA_DEBUG(0, "%s(), unknown event = %s\n", __FUNCTION__,
                           ircomm_event[event]);
                if (skb)
                        dev_kfree_skb(skb);
                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:
                IRDA_DEBUG(0, "%s(), unknown event = %s\n", __FUNCTION__,
                           ircomm_event[event]);
                if (skb)
                        dev_kfree_skb(skb);
                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)
{
        IRDA_DEBUG(4, "%s: state=%s, event=%s\n", __FUNCTION__,
                   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;
 
        IRDA_DEBUG(4, "%s: next state=%s, service type=%d\n", __FUNCTION__,
                   ircomm_state[self->state], self->service_type);
}

Browse

Tools

Subversion Repositories or1k

[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [net/] [irda/] [ircomm/] [ircomm_event.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1275	phoenix	`/*********************************************************************`
2			`*`
3			`* Filename: ircomm_event.c`
4			`* Version: 1.0`
5			`* Description: IrCOMM layer state machine`
6			`* Status: Stable`
7			`* Author: Dag Brattli <dagb@cs.uit.no>`
8			`* Created at: Sun Jun 6 20:33:11 1999`
9			`* Modified at: Sun Dec 12 13:44:32 1999`
10			`* Modified by: Dag Brattli <dagb@cs.uit.no>`
11			`*`
12			`* Copyright (c) 1999 Dag Brattli, All Rights Reserved.`
13			`*`
14			`* This program is free software; you can redistribute it and/or`
15			`* modify it under the terms of the GNU General Public License as`
16			`* published by the Free Software Foundation; either version 2 of`
17			`* the License, or (at your option) any later version.`
18			`*`
19			`* This program is distributed in the hope that it will be useful,`
20			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
21			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
22			`* GNU General Public License for more details.`
23			`*`
24			`* You should have received a copy of the GNU General Public License`
25			`* along with this program; if not, write to the Free Software`
26			`* Foundation, Inc., 59 Temple Place, Suite 330, Boston,`
27			`* MA 02111-1307 USA`
28			`*`
29			`********************************************************************/`
30
31			`#include <linux/sched.h>`
32			`#include <linux/proc_fs.h>`
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/irttp.h>`
39			`#include <net/irda/irias_object.h>`
40
41			`#include <net/irda/ircomm_core.h>`
42			`#include <net/irda/ircomm_event.h>`
43
44			`static int ircomm_state_idle(struct ircomm_cb *self, IRCOMM_EVENT event,`
45			`struct sk_buff skb, struct ircomm_info info);`
46			`static int ircomm_state_waiti(struct ircomm_cb *self, IRCOMM_EVENT event,`
47			`struct sk_buff skb, struct ircomm_info info);`
48			`static int ircomm_state_waitr(struct ircomm_cb *self, IRCOMM_EVENT event,`
49			`struct sk_buff skb, struct ircomm_info info);`
50			`static int ircomm_state_conn(struct ircomm_cb *self, IRCOMM_EVENT event,`
51			`struct sk_buff skb, struct ircomm_info info);`
52
53			`char *ircomm_state[] = {`
54			`"IRCOMM_IDLE",`
55			`"IRCOMM_WAITI",`
56			`"IRCOMM_WAITR",`
57			`"IRCOMM_CONN",`
58			`};`
59
60			`char *ircomm_event[] = {`
61			`"IRCOMM_CONNECT_REQUEST",`
62			`"IRCOMM_CONNECT_RESPONSE",`
63			`"IRCOMM_TTP_CONNECT_INDICATION",`
64			`"IRCOMM_LMP_CONNECT_INDICATION",`
65			`"IRCOMM_TTP_CONNECT_CONFIRM",`
66			`"IRCOMM_LMP_CONNECT_CONFIRM",`
67
68			`"IRCOMM_LMP_DISCONNECT_INDICATION",`
69			`"IRCOMM_TTP_DISCONNECT_INDICATION",`
70			`"IRCOMM_DISCONNECT_REQUEST",`
71
72			`"IRCOMM_TTP_DATA_INDICATION",`
73			`"IRCOMM_LMP_DATA_INDICATION",`
74			`"IRCOMM_DATA_REQUEST",`
75			`"IRCOMM_CONTROL_REQUEST",`
76			`"IRCOMM_CONTROL_INDICATION",`
77			`};`
78
79			`static int (state[])(struct ircomm_cb self, IRCOMM_EVENT event,`
80			`struct sk_buff skb, struct ircomm_info info) =`
81			`{`
82			`ircomm_state_idle,`
83			`ircomm_state_waiti,`
84			`ircomm_state_waitr,`
85			`ircomm_state_conn,`
86			`};`
87
88			`/*`
89			`* Function ircomm_state_idle (self, event, skb)`
90			`*`
91			`* IrCOMM is currently idle`
92			`*`
93			`*/`
94			`static int ircomm_state_idle(struct ircomm_cb *self, IRCOMM_EVENT event,`
95			`struct sk_buff skb, struct ircomm_info info)`
96			`{`
97			`int ret = 0;`
98
99			`switch (event) {`
100			`case IRCOMM_CONNECT_REQUEST:`
101			`ircomm_next_state(self, IRCOMM_WAITI);`
102			`ret = self->issue.connect_request(self, skb, info);`
103			`break;`
104			`case IRCOMM_TTP_CONNECT_INDICATION:`
105			`case IRCOMM_LMP_CONNECT_INDICATION:`
106			`ircomm_next_state(self, IRCOMM_WAITR);`
107			`ircomm_connect_indication(self, skb, info);`
108			`break;`
109			`default:`
110			`IRDA_DEBUG(4,"%s(), unknown event: %s\n", __FUNCTION__,`
111			`ircomm_event[event]);`
112			`if (skb)`
113			`dev_kfree_skb(skb);`
114			`return -EINVAL;`
115			`}`
116			`return ret;`
117			`}`
118
119			`/*`
120			`* Function ircomm_state_waiti (self, event, skb)`
121			`*`
122			`* The IrCOMM user has requested an IrCOMM connection to the remote`
123			`* device and is awaiting confirmation`
124			`*/`
125			`static int ircomm_state_waiti(struct ircomm_cb *self, IRCOMM_EVENT event,`
126			`struct sk_buff skb, struct ircomm_info info)`
127			`{`
128			`int ret = 0;`
129
130			`switch (event) {`
131			`case IRCOMM_TTP_CONNECT_CONFIRM:`
132			`case IRCOMM_LMP_CONNECT_CONFIRM:`
133			`ircomm_next_state(self, IRCOMM_CONN);`
134			`ircomm_connect_confirm(self, skb, info);`
135			`break;`
136			`case IRCOMM_TTP_DISCONNECT_INDICATION:`
137			`case IRCOMM_LMP_DISCONNECT_INDICATION:`
138			`ircomm_next_state(self, IRCOMM_IDLE);`
139			`ircomm_disconnect_indication(self, skb, info);`
140			`break;`
141			`default:`
142			`IRDA_DEBUG(0, "%s(), unknown event: %s\n", __FUNCTION__,`
143			`ircomm_event[event]);`
144			`if (skb)`
145			`dev_kfree_skb(skb);`
146			`ret = -EINVAL;`
147			`}`
148			`return ret;`
149			`}`
150
151			`/*`
152			`* Function ircomm_state_waitr (self, event, skb)`
153			`*`
154			`* IrCOMM has received an incoming connection request and is awaiting`
155			`* response from the user`
156			`*/`
157			`static int ircomm_state_waitr(struct ircomm_cb *self, IRCOMM_EVENT event,`
158			`struct sk_buff skb, struct ircomm_info info)`
159			`{`
160			`int ret = 0;`
161
162			`switch (event) {`
163			`case IRCOMM_CONNECT_RESPONSE:`
164			`ircomm_next_state(self, IRCOMM_CONN);`
165			`ret = self->issue.connect_response(self, skb);`
166			`break;`
167			`case IRCOMM_DISCONNECT_REQUEST:`
168			`ircomm_next_state(self, IRCOMM_IDLE);`
169			`ret = self->issue.disconnect_request(self, skb, info);`
170			`break;`
171			`case IRCOMM_TTP_DISCONNECT_INDICATION:`
172			`case IRCOMM_LMP_DISCONNECT_INDICATION:`
173			`ircomm_next_state(self, IRCOMM_IDLE);`
174			`ircomm_disconnect_indication(self, skb, info);`
175			`break;`
176			`default:`
177			`IRDA_DEBUG(0, "%s(), unknown event = %s\n", __FUNCTION__,`
178			`ircomm_event[event]);`
179			`if (skb)`
180			`dev_kfree_skb(skb);`
181			`ret = -EINVAL;`
182			`}`
183			`return ret;`
184			`}`
185
186			`/*`
187			`* Function ircomm_state_conn (self, event, skb)`
188			`*`
189			`* IrCOMM is connected to the peer IrCOMM device`
190			`*`
191			`*/`
192			`static int ircomm_state_conn(struct ircomm_cb *self, IRCOMM_EVENT event,`
193			`struct sk_buff skb, struct ircomm_info info)`
194			`{`
195			`int ret = 0;`
196
197			`switch (event) {`
198			`case IRCOMM_DATA_REQUEST:`
199			`ret = self->issue.data_request(self, skb, 0);`
200			`break;`
201			`case IRCOMM_TTP_DATA_INDICATION:`
202			`ircomm_process_data(self, skb);`
203			`break;`
204			`case IRCOMM_LMP_DATA_INDICATION:`
205			`ircomm_data_indication(self, skb);`
206			`break;`
207			`case IRCOMM_CONTROL_REQUEST:`
208			`/* Just send a separate frame for now */`
209			`ret = self->issue.data_request(self, skb, skb->len);`
210			`break;`
211			`case IRCOMM_TTP_DISCONNECT_INDICATION:`
212			`case IRCOMM_LMP_DISCONNECT_INDICATION:`
213			`ircomm_next_state(self, IRCOMM_IDLE);`
214			`ircomm_disconnect_indication(self, skb, info);`
215			`break;`
216			`case IRCOMM_DISCONNECT_REQUEST:`
217			`ircomm_next_state(self, IRCOMM_IDLE);`
218			`ret = self->issue.disconnect_request(self, skb, info);`
219			`break;`
220			`default:`
221			`IRDA_DEBUG(0, "%s(), unknown event = %s\n", __FUNCTION__,`
222			`ircomm_event[event]);`
223			`if (skb)`
224			`dev_kfree_skb(skb);`
225			`ret = -EINVAL;`
226			`}`
227			`return ret;`
228			`}`
229
230			`/*`
231			`* Function ircomm_do_event (self, event, skb)`
232			`*`
233			`* Process event`
234			`*`
235			`*/`
236			`int ircomm_do_event(struct ircomm_cb *self, IRCOMM_EVENT event,`
237			`struct sk_buff skb, struct ircomm_info info)`
238			`{`
239			`IRDA_DEBUG(4, "%s: state=%s, event=%s\n", __FUNCTION__,`
240			`ircomm_state[self->state], ircomm_event[event]);`
241
242			`return (*state[self->state])(self, event, skb, info);`
243			`}`
244
245			`/*`
246			`* Function ircomm_next_state (self, state)`
247			`*`
248			`* Switch state`
249			`*`
250			`*/`
251			`void ircomm_next_state(struct ircomm_cb *self, IRCOMM_STATE state)`
252			`{`
253			`self->state = state;`
254
255			`IRDA_DEBUG(4, "%s: next state=%s, service type=%d\n", __FUNCTION__,`
256			`ircomm_state[self->state], self->service_type);`
257			`}`