/*********************************************************************
- *
+ *
* Filename: irlmp_frame.c
* Version: 0.9
* Description: IrLMP frame implementation
* Created at: Tue Aug 19 02:09:59 1997
* Modified at: Mon Dec 13 13:41:12 1999
* Modified by: Dag Brattli <dagb@cs.uit.no>
- *
+ *
* Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>
* 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
+ *
+ * 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.
*
- * Neither Dag Brattli nor University of Tromsø admit liability nor
- * provide warranty for any of this software. This material is
+ * Neither Dag Brattli nor University of Tromsø admit liability nor
+ * provide warranty for any of this software. This material is
* provided "AS-IS" and at no charge.
*
********************************************************************/
#include <net/irda/irlmp_frame.h>
#include <net/irda/discovery.h>
-static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap,
+static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap,
__u8 slsap, int status, hashbin_t *);
inline void irlmp_send_data_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap,
skb->data[1] = slsap;
if (expedited) {
- IRDA_DEBUG(4, "%s(), sending expedited data\n", __FUNCTION__);
+ IRDA_DEBUG(4, "%s(), sending expedited data\n", __func__);
irlap_data_request(self->irlap, skb, TRUE);
} else
irlap_data_request(self->irlap, skb, FALSE);
* Send Link Control Frame to IrLAP
*/
void irlmp_send_lcf_pdu(struct lap_cb *self, __u8 dlsap, __u8 slsap,
- __u8 opcode, struct sk_buff *skb)
+ __u8 opcode, struct sk_buff *skb)
{
__u8 *frame;
-
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+
+ IRDA_DEBUG(2, "%s()\n", __func__);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;);
IRDA_ASSERT(skb != NULL, return;);
-
+
frame = skb->data;
-
+
frame[0] = dlsap | CONTROL_BIT;
frame[1] = slsap;
* Used by IrLAP to pass received data frames to IrLMP layer
*
*/
-void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb,
+void irlmp_link_data_indication(struct lap_cb *self, struct sk_buff *skb,
int unreliable)
{
struct lsap_cb *lsap;
__u8 slsap_sel; /* Source (this) LSAP address */
__u8 dlsap_sel; /* Destination LSAP address */
__u8 *fp;
-
- IRDA_DEBUG(4, "%s()\n", __FUNCTION__);
+
+ IRDA_DEBUG(4, "%s()\n", __func__);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;);
fp = skb->data;
/*
- * The next statements may be confusing, but we do this so that
+ * The next statements may be confusing, but we do this so that
* destination LSAP of received frame is source LSAP in our view
*/
- slsap_sel = fp[0] & LSAP_MASK;
- dlsap_sel = fp[1];
+ slsap_sel = fp[0] & LSAP_MASK;
+ dlsap_sel = fp[1];
/*
* Check if this is an incoming connection, since we must deal with
if ((fp[0] & CONTROL_BIT) && (fp[2] == CONNECT_CMD)) {
IRDA_DEBUG(3, "%s(), incoming connection, "
"source LSAP=%d, dest LSAP=%d\n",
- __FUNCTION__, slsap_sel, dlsap_sel);
-
+ __func__, slsap_sel, dlsap_sel);
+
/* Try to find LSAP among the unconnected LSAPs */
lsap = irlmp_find_lsap(self, dlsap_sel, slsap_sel, CONNECT_CMD,
irlmp->unconnected_lsaps);
-
+
/* Maybe LSAP was already connected, so try one more time */
if (!lsap) {
- IRDA_DEBUG(1, "%s(), incoming connection for LSAP already connected\n", __FUNCTION__);
+ IRDA_DEBUG(1, "%s(), incoming connection for LSAP already connected\n", __func__);
lsap = irlmp_find_lsap(self, dlsap_sel, slsap_sel, 0,
self->lsaps);
}
} else
- lsap = irlmp_find_lsap(self, dlsap_sel, slsap_sel, 0,
+ lsap = irlmp_find_lsap(self, dlsap_sel, slsap_sel, 0,
self->lsaps);
-
+
if (lsap == NULL) {
IRDA_DEBUG(2, "IrLMP, Sorry, no LSAP for received frame!\n");
IRDA_DEBUG(2, "%s(), slsap_sel = %02x, dlsap_sel = %02x\n",
- __FUNCTION__, slsap_sel, dlsap_sel);
+ __func__, slsap_sel, dlsap_sel);
if (fp[0] & CONTROL_BIT) {
IRDA_DEBUG(2, "%s(), received control frame %02x\n",
- __FUNCTION__, fp[2]);
+ __func__, fp[2]);
} else {
- IRDA_DEBUG(2, "%s(), received data frame\n", __FUNCTION__);
+ IRDA_DEBUG(2, "%s(), received data frame\n", __func__);
}
return;
}
- /*
- * Check if we received a control frame?
+ /*
+ * Check if we received a control frame?
*/
if (fp[0] & CONTROL_BIT) {
switch (fp[2]) {
break;
case DISCONNECT:
IRDA_DEBUG(4, "%s(), Disconnect indication!\n",
- __FUNCTION__);
- irlmp_do_lsap_event(lsap, LM_DISCONNECT_INDICATION,
+ __func__);
+ irlmp_do_lsap_event(lsap, LM_DISCONNECT_INDICATION,
skb);
break;
case ACCESSMODE_CMD:
break;
default:
IRDA_DEBUG(0, "%s(), Unknown control frame %02x\n",
- __FUNCTION__, fp[2]);
+ __func__, fp[2]);
break;
}
} else if (unreliable) {
irlmp_udata_indication(lsap, skb);
else
irlmp_do_lsap_event(lsap, LM_UDATA_INDICATION, skb);
- } else {
+ } else {
/* Optimize and bypass the state machine if possible */
if (lsap->lsap_state == LSAP_DATA_TRANSFER_READY)
irlmp_data_indication(lsap, skb);
/*
* Function irlmp_link_unitdata_indication (self, skb)
*
- *
+ *
*
*/
#ifdef CONFIG_IRDA_ULTRA
__u8 pid; /* Protocol identifier */
__u8 *fp;
unsigned long flags;
-
- IRDA_DEBUG(4, "%s()\n", __FUNCTION__);
+
+ IRDA_DEBUG(4, "%s()\n", __func__);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;);
fp = skb->data;
/*
- * The next statements may be confusing, but we do this so that
+ * The next statements may be confusing, but we do this so that
* destination LSAP of received frame is source LSAP in our view
*/
- slsap_sel = fp[0] & LSAP_MASK;
+ slsap_sel = fp[0] & LSAP_MASK;
dlsap_sel = fp[1];
pid = fp[2];
-
+
if (pid & 0x80) {
IRDA_DEBUG(0, "%s(), extension in PID not supp!\n",
- __FUNCTION__);
+ __func__);
return;
}
/* Check if frame is addressed to the connectionless LSAP */
if ((slsap_sel != LSAP_CONNLESS) || (dlsap_sel != LSAP_CONNLESS)) {
- IRDA_DEBUG(0, "%s(), dropping frame!\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), dropping frame!\n", __func__);
return;
}
-
+
/* Search the connectionless LSAP */
spin_lock_irqsave(&irlmp->unconnected_lsaps->hb_spinlock, flags);
lsap = (struct lsap_cb *) hashbin_get_first(irlmp->unconnected_lsaps);
/*
* Check if source LSAP and dest LSAP selectors and PID match.
*/
- if ((lsap->slsap_sel == slsap_sel) &&
- (lsap->dlsap_sel == dlsap_sel) &&
- (lsap->pid == pid))
- {
+ if ((lsap->slsap_sel == slsap_sel) &&
+ (lsap->dlsap_sel == dlsap_sel) &&
+ (lsap->pid == pid))
+ {
break;
}
lsap = (struct lsap_cb *) hashbin_get_next(irlmp->unconnected_lsaps);
if (lsap)
irlmp_connless_data_indication(lsap, skb);
else {
- IRDA_DEBUG(0, "%s(), found no matching LSAP!\n", __FUNCTION__);
+ IRDA_DEBUG(0, "%s(), found no matching LSAP!\n", __func__);
}
}
#endif /* CONFIG_IRDA_ULTRA */
/*
* Function irlmp_link_disconnect_indication (reason, userdata)
*
- * IrLAP has disconnected
+ * IrLAP has disconnected
*
*/
-void irlmp_link_disconnect_indication(struct lap_cb *lap,
- struct irlap_cb *irlap,
- LAP_REASON reason,
+void irlmp_link_disconnect_indication(struct lap_cb *lap,
+ struct irlap_cb *irlap,
+ LAP_REASON reason,
struct sk_buff *skb)
{
- IRDA_DEBUG(2, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(2, "%s()\n", __func__);
IRDA_ASSERT(lap != NULL, return;);
IRDA_ASSERT(lap->magic == LMP_LAP_MAGIC, return;);
lap->reason = reason;
lap->daddr = DEV_ADDR_ANY;
- /* FIXME: must do something with the skb if any */
-
+ /* FIXME: must do something with the skb if any */
+
/*
* Inform station state machine
*/
* Incoming LAP connection!
*
*/
-void irlmp_link_connect_indication(struct lap_cb *self, __u32 saddr,
+void irlmp_link_connect_indication(struct lap_cb *self, __u32 saddr,
__u32 daddr, struct qos_info *qos,
- struct sk_buff *skb)
+ struct sk_buff *skb)
{
- IRDA_DEBUG(4, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(4, "%s()\n", __func__);
/* Copy QoS settings for this session */
self->qos = qos;
* LAP connection confirmed!
*
*/
-void irlmp_link_connect_confirm(struct lap_cb *self, struct qos_info *qos,
+void irlmp_link_connect_confirm(struct lap_cb *self, struct qos_info *qos,
struct sk_buff *skb)
{
- IRDA_DEBUG(4, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(4, "%s()\n", __func__);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;);
*
* Jean II
*/
-void irlmp_link_discovery_indication(struct lap_cb *self,
+void irlmp_link_discovery_indication(struct lap_cb *self,
discovery_t *discovery)
{
IRDA_ASSERT(self != NULL, return;);
/* Add to main log, cleanup */
irlmp_add_discovery(irlmp->cachelog, discovery);
-
+
/* Just handle it the same way as a discovery confirm,
* bypass the LM_LAP state machine (see below) */
irlmp_discovery_confirm(irlmp->cachelog, DISCOVERY_PASSIVE);
*/
void irlmp_link_discovery_confirm(struct lap_cb *self, hashbin_t *log)
{
- IRDA_DEBUG(4, "%s()\n", __FUNCTION__);
+ IRDA_DEBUG(4, "%s()\n", __func__);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;);
-
+
/* Add to main log, cleanup */
irlmp_add_discovery_log(irlmp->cachelog, log);
* Find handle associated with destination and source LSAP
*
* Any IrDA connection (LSAP/TSAP) is uniquely identified by
- * 3 parameters, the local lsap, the remote lsap and the remote address.
+ * 3 parameters, the local lsap, the remote lsap and the remote address.
* We may initiate multiple connections to the same remote service
* (they will have different local lsap), a remote device may initiate
* multiple connections to the same local service (they will have
*/
static struct lsap_cb *irlmp_find_lsap(struct lap_cb *self, __u8 dlsap_sel,
__u8 slsap_sel, int status,
- hashbin_t *queue)
+ hashbin_t *queue)
{
struct lsap_cb *lsap;
unsigned long flags;
-
- /*
+
+ /*
* Optimize for the common case. We assume that the last frame
* received is in the same connection as the last one, so check in
* cache first to avoid the linear search
*/
#ifdef CONFIG_IRDA_CACHE_LAST_LSAP
- if ((self->cache.valid) &&
- (self->cache.slsap_sel == slsap_sel) &&
- (self->cache.dlsap_sel == dlsap_sel))
+ if ((self->cache.valid) &&
+ (self->cache.slsap_sel == slsap_sel) &&
+ (self->cache.dlsap_sel == dlsap_sel))
{
return (self->cache.lsap);
}
lsap = (struct lsap_cb *) hashbin_get_first(queue);
while (lsap != NULL) {
- /*
- * If this is an incoming connection, then the destination
- * LSAP selector may have been specified as LM_ANY so that
+ /*
+ * If this is an incoming connection, then the destination
+ * LSAP selector may have been specified as LM_ANY so that
* any client can connect. In that case we only need to check
* if the source LSAP (in our view!) match!
*/
- if ((status == CONNECT_CMD) &&
- (lsap->slsap_sel == slsap_sel) &&
+ if ((status == CONNECT_CMD) &&
+ (lsap->slsap_sel == slsap_sel) &&
(lsap->dlsap_sel == LSAP_ANY)) {
/* This is where the dest lsap sel is set on incoming
* lsaps */
/*
* Check if source LSAP and dest LSAP selectors match.
*/
- if ((lsap->slsap_sel == slsap_sel) &&
- (lsap->dlsap_sel == dlsap_sel))
+ if ((lsap->slsap_sel == slsap_sel) &&
+ (lsap->dlsap_sel == dlsap_sel))
break;
lsap = (struct lsap_cb *) hashbin_get_next(queue);
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