cregit-Linux how code gets into the kernel

Release 4.7 net/irda/ircomm/ircomm_event.c

Directory: net/irda/ircomm
/*********************************************************************
 *
 * 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; }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git9893.33%120.00%
jean tourrilhesjean tourrilhes54.76%240.00%
joe perchesjoe perches10.95%120.00%
harvey harrisonharvey harrison10.95%120.00%
Total105100.00%5100.00%

/* * 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; }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git9896.08%125.00%
jean tourrilhesjean tourrilhes21.96%125.00%
joe perchesjoe perches10.98%125.00%
harvey harrisonharvey harrison10.98%125.00%
Total102100.00%4100.00%

/* * 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; }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git12596.90%125.00%
jean tourrilhesjean tourrilhes21.55%125.00%
joe perchesjoe perches10.78%125.00%
harvey harrisonharvey harrison10.78%125.00%
Total129100.00%4100.00%

/* * 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; }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git16497.62%125.00%
jean tourrilhesjean tourrilhes21.19%125.00%
harvey harrisonharvey harrison10.60%125.00%
joe perchesjoe perches10.60%125.00%
Total168100.00%4100.00%

/* * 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); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git5893.55%125.00%
jean tourrilhesjean tourrilhes23.23%125.00%
harvey harrisonharvey harrison11.61%125.00%
joe perchesjoe perches11.61%125.00%
Total62100.00%4100.00%

/* * 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); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git3389.19%125.00%
jean tourrilhesjean tourrilhes25.41%125.00%
joe perchesjoe perches12.70%125.00%
harvey harrisonharvey harrison12.70%125.00%
Total37100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git78695.62%19.09%
jean tourrilhesjean tourrilhes151.82%218.18%
joe perchesjoe perches70.85%218.18%
harvey harrisonharvey harrison60.73%19.09%
jan engelhardtjan engelhardt40.49%19.09%
linus torvaldslinus torvalds10.12%19.09%
jeff kirsherjeff kirsher10.12%19.09%
hideaki yoshifujihideaki yoshifuji10.12%19.09%
adrian bunkadrian bunk10.12%19.09%
Total822100.00%11100.00%
Directory: net/irda/ircomm
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