* base: ITU-T Rec Q.931
*
* Copyright (C) 1996 Universidade de Lisboa
- *
+ *
* Written by Pedro Roque Marques (roque@di.fc.ul.pt)
*
- * This software may be used and distributed according to the terms of
+ * This software may be used and distributed according to the terms of
* the GNU General Public License, incorporated herein by reference.
*/
const char * const isdn_state_table[] = {
- "Closed",
- "Call initiated",
- "Overlap sending",
- "Outgoing call proceeding",
- "NOT DEFINED",
- "Call delivered",
- "Call present",
- "Call received",
- "Connect request",
- "Incoming call proceeding",
- "Active",
- "Disconnect request",
- "Disconnect indication",
- "NOT DEFINED",
- "NOT DEFINED",
- "Suspend request",
- "NOT DEFINED",
- "Resume request",
- "NOT DEFINED",
- "Release Request",
- "NOT DEFINED",
- "NOT DEFINED",
- "NOT DEFINED",
- "NOT DEFINED",
- "NOT DEFINED",
- "Overlap receiving",
- "Select protocol on B-Channel",
- "Activate B-channel protocol"
+ "Closed",
+ "Call initiated",
+ "Overlap sending",
+ "Outgoing call proceeding",
+ "NOT DEFINED",
+ "Call delivered",
+ "Call present",
+ "Call received",
+ "Connect request",
+ "Incoming call proceeding",
+ "Active",
+ "Disconnect request",
+ "Disconnect indication",
+ "NOT DEFINED",
+ "NOT DEFINED",
+ "Suspend request",
+ "NOT DEFINED",
+ "Resume request",
+ "NOT DEFINED",
+ "Release Request",
+ "NOT DEFINED",
+ "NOT DEFINED",
+ "NOT DEFINED",
+ "NOT DEFINED",
+ "NOT DEFINED",
+ "Overlap receiving",
+ "Select protocol on B-Channel",
+ "Activate B-channel protocol"
};
#ifdef DEBUG_ERRS
static
struct CauseValue {
- byte nr;
- char *descr;
-} cvlist[]={
- {0x01,"Unallocated (unassigned) number"},
- {0x02,"No route to specified transit network"},
- {0x03,"No route to destination"},
- {0x04,"Send special information tone"},
- {0x05,"Misdialled trunk prefix"},
- {0x06,"Channel unacceptable"},
- {0x07,"Channel awarded and being delivered in an established channel"},
- {0x08,"Preemption"},
- {0x09,"Preemption - circuit reserved for reuse"},
- {0x10,"Normal call clearing"},
- {0x11,"User busy"},
- {0x12,"No user responding"},
- {0x13,"No answer from user (user alerted)"},
- {0x14,"Subscriber absent"},
- {0x15,"Call rejected"},
- {0x16,"Number changed"},
- {0x1a,"non-selected user clearing"},
- {0x1b,"Destination out of order"},
- {0x1c,"Invalid number format (address incomplete)"},
- {0x1d,"Facility rejected"},
- {0x1e,"Response to Status enquiry"},
- {0x1f,"Normal, unspecified"},
- {0x22,"No circuit/channel available"},
- {0x26,"Network out of order"},
- {0x27,"Permanent frame mode connection out-of-service"},
- {0x28,"Permanent frame mode connection operational"},
- {0x29,"Temporary failure"},
- {0x2a,"Switching equipment congestion"},
- {0x2b,"Access information discarded"},
- {0x2c,"Requested circuit/channel not available"},
- {0x2e,"Precedence call blocked"},
- {0x2f,"Resource unavailable, unspecified"},
- {0x31,"Quality of service unavailable"},
- {0x32,"Requested facility not subscribed"},
- {0x35,"Outgoing calls barred within CUG"},
- {0x37,"Incoming calls barred within CUG"},
- {0x39,"Bearer capability not authorized"},
- {0x3a,"Bearer capability not presently available"},
- {0x3e,"Inconsistency in designated outgoing access information and subscriber class"},
- {0x3f,"Service or option not available, unspecified"},
- {0x41,"Bearer capability not implemented"},
- {0x42,"Channel type not implemented"},
- {0x43,"Requested facility not implemented"},
- {0x44,"Only restricted digital information bearer capability is available"},
- {0x4f,"Service or option not implemented"},
- {0x51,"Invalid call reference value"},
- {0x52,"Identified channel does not exist"},
- {0x53,"A suspended call exists, but this call identity does not"},
- {0x54,"Call identity in use"},
- {0x55,"No call suspended"},
- {0x56,"Call having the requested call identity has been cleared"},
- {0x57,"User not member of CUG"},
- {0x58,"Incompatible destination"},
- {0x5a,"Non-existent CUG"},
- {0x5b,"Invalid transit network selection"},
- {0x5f,"Invalid message, unspecified"},
- {0x60,"Mandatory information element is missing"},
- {0x61,"Message type non-existent or not implemented"},
- {0x62,"Message not compatible with call state or message type non-existent or not implemented"},
- {0x63,"Information element/parameter non-existent or not implemented"},
- {0x64,"Invalid information element contents"},
- {0x65,"Message not compatible with call state"},
- {0x66,"Recovery on timer expiry"},
- {0x67,"Parameter non-existent or not implemented - passed on"},
- {0x6e,"Message with unrecognized parameter discarded"},
- {0x6f,"Protocol error, unspecified"},
- {0x7f,"Interworking, unspecified"}
+ byte nr;
+ char *descr;
+} cvlist[] = {
+ {0x01, "Unallocated (unassigned) number"},
+ {0x02, "No route to specified transit network"},
+ {0x03, "No route to destination"},
+ {0x04, "Send special information tone"},
+ {0x05, "Misdialled trunk prefix"},
+ {0x06, "Channel unacceptable"},
+ {0x07, "Channel awarded and being delivered in an established channel"},
+ {0x08, "Preemption"},
+ {0x09, "Preemption - circuit reserved for reuse"},
+ {0x10, "Normal call clearing"},
+ {0x11, "User busy"},
+ {0x12, "No user responding"},
+ {0x13, "No answer from user (user alerted)"},
+ {0x14, "Subscriber absent"},
+ {0x15, "Call rejected"},
+ {0x16, "Number changed"},
+ {0x1a, "non-selected user clearing"},
+ {0x1b, "Destination out of order"},
+ {0x1c, "Invalid number format (address incomplete)"},
+ {0x1d, "Facility rejected"},
+ {0x1e, "Response to Status enquiry"},
+ {0x1f, "Normal, unspecified"},
+ {0x22, "No circuit/channel available"},
+ {0x26, "Network out of order"},
+ {0x27, "Permanent frame mode connection out-of-service"},
+ {0x28, "Permanent frame mode connection operational"},
+ {0x29, "Temporary failure"},
+ {0x2a, "Switching equipment congestion"},
+ {0x2b, "Access information discarded"},
+ {0x2c, "Requested circuit/channel not available"},
+ {0x2e, "Precedence call blocked"},
+ {0x2f, "Resource unavailable, unspecified"},
+ {0x31, "Quality of service unavailable"},
+ {0x32, "Requested facility not subscribed"},
+ {0x35, "Outgoing calls barred within CUG"},
+ {0x37, "Incoming calls barred within CUG"},
+ {0x39, "Bearer capability not authorized"},
+ {0x3a, "Bearer capability not presently available"},
+ {0x3e, "Inconsistency in designated outgoing access information and subscriber class"},
+ {0x3f, "Service or option not available, unspecified"},
+ {0x41, "Bearer capability not implemented"},
+ {0x42, "Channel type not implemented"},
+ {0x43, "Requested facility not implemented"},
+ {0x44, "Only restricted digital information bearer capability is available"},
+ {0x4f, "Service or option not implemented"},
+ {0x51, "Invalid call reference value"},
+ {0x52, "Identified channel does not exist"},
+ {0x53, "A suspended call exists, but this call identity does not"},
+ {0x54, "Call identity in use"},
+ {0x55, "No call suspended"},
+ {0x56, "Call having the requested call identity has been cleared"},
+ {0x57, "User not member of CUG"},
+ {0x58, "Incompatible destination"},
+ {0x5a, "Non-existent CUG"},
+ {0x5b, "Invalid transit network selection"},
+ {0x5f, "Invalid message, unspecified"},
+ {0x60, "Mandatory information element is missing"},
+ {0x61, "Message type non-existent or not implemented"},
+ {0x62, "Message not compatible with call state or message type non-existent or not implemented"},
+ {0x63, "Information element/parameter non-existent or not implemented"},
+ {0x64, "Invalid information element contents"},
+ {0x65, "Message not compatible with call state"},
+ {0x66, "Recovery on timer expiry"},
+ {0x67, "Parameter non-existent or not implemented - passed on"},
+ {0x6e, "Message with unrecognized parameter discarded"},
+ {0x6f, "Protocol error, unspecified"},
+ {0x7f, "Interworking, unspecified"}
};
#endif
static struct isdn_event_desc {
- unsigned short ev;
- char * desc;
-} isdn_event_table [] = {
- {EV_USR_SETUP_REQ, "CC->L3: Setup Request"},
- {EV_USR_SETUP_RESP, "CC->L3: Setup Response"},
- {EV_USR_PROCED_REQ, "CC->L3: Proceeding Request"},
- {EV_USR_RELEASE_REQ, "CC->L3: Release Request"},
-
- {EV_NET_SETUP, "NET->TE: setup "},
- {EV_NET_CALL_PROC, "NET->TE: call proceeding"},
- {EV_NET_SETUP_ACK, "NET->TE: setup acknowledge (more info needed)"},
- {EV_NET_CONN, "NET->TE: connect"},
- {EV_NET_CONN_ACK, "NET->TE: connect acknowledge"},
- {EV_NET_DISC, "NET->TE: disconnect indication"},
- {EV_NET_RELEASE, "NET->TE: release"},
- {EV_NET_RELEASE_COMP, "NET->TE: release complete"},
- {EV_NET_SELP_RESP, "Board: Select B-channel protocol ack"},
- {EV_NET_ACTV_RESP, "Board: Activate B-channel protocol ack"},
- {EV_TIMER, "Timeout"},
- {0, "NULL"}
+ unsigned short ev;
+ char *desc;
+} isdn_event_table[] = {
+ {EV_USR_SETUP_REQ, "CC->L3: Setup Request"},
+ {EV_USR_SETUP_RESP, "CC->L3: Setup Response"},
+ {EV_USR_PROCED_REQ, "CC->L3: Proceeding Request"},
+ {EV_USR_RELEASE_REQ, "CC->L3: Release Request"},
+
+ {EV_NET_SETUP, "NET->TE: setup "},
+ {EV_NET_CALL_PROC, "NET->TE: call proceeding"},
+ {EV_NET_SETUP_ACK, "NET->TE: setup acknowledge (more info needed)"},
+ {EV_NET_CONN, "NET->TE: connect"},
+ {EV_NET_CONN_ACK, "NET->TE: connect acknowledge"},
+ {EV_NET_DISC, "NET->TE: disconnect indication"},
+ {EV_NET_RELEASE, "NET->TE: release"},
+ {EV_NET_RELEASE_COMP, "NET->TE: release complete"},
+ {EV_NET_SELP_RESP, "Board: Select B-channel protocol ack"},
+ {EV_NET_ACTV_RESP, "Board: Activate B-channel protocol ack"},
+ {EV_TIMER, "Timeout"},
+ {0, "NULL"}
};
-char * strisdnevent(ushort ev)
+char *strisdnevent(ushort ev)
{
- struct isdn_event_desc * entry;
-
- for (entry = isdn_event_table; entry->ev; entry++)
- if (entry->ev == ev)
- break;
+ struct isdn_event_desc *entry;
+
+ for (entry = isdn_event_table; entry->ev; entry++)
+ if (entry->ev == ev)
+ break;
- return entry->desc;
+ return entry->desc;
}
/*
*/
static struct fsm_timer_entry fsm_timers[] = {
- {ST_CALL_PROC, 10},
- {ST_DISC_REQ, 2},
- {ST_ACTIVE_SELP, 5},
- {ST_ACTIVE_ACTV, 5},
- {ST_INCM_PROC, 10},
- {ST_CONN_REQ, 2},
- {0xff, 0}
+ {ST_CALL_PROC, 10},
+ {ST_DISC_REQ, 2},
+ {ST_ACTIVE_SELP, 5},
+ {ST_ACTIVE_ACTV, 5},
+ {ST_INCM_PROC, 10},
+ {ST_CONN_REQ, 2},
+ {0xff, 0}
};
static struct fsm_entry fsm_table[] = {
/* Connect Phase */
- /* Outgoing */
- {ST_NULL, ST_CALL_INIT, EV_USR_SETUP_REQ, cb_out_1},
+ /* Outgoing */
+ {ST_NULL, ST_CALL_INIT, EV_USR_SETUP_REQ, cb_out_1},
- {ST_CALL_INIT, ST_OVER_SEND, EV_NET_SETUP_ACK, cb_notdone},
- {ST_CALL_INIT, ST_CALL_PROC, EV_NET_CALL_PROC, NULL},
- {ST_CALL_INIT, ST_NULL, EV_NET_DISC, cb_out_2},
+ {ST_CALL_INIT, ST_OVER_SEND, EV_NET_SETUP_ACK, cb_notdone},
+ {ST_CALL_INIT, ST_CALL_PROC, EV_NET_CALL_PROC, NULL},
+ {ST_CALL_INIT, ST_NULL, EV_NET_DISC, cb_out_2},
- {ST_CALL_PROC, ST_ACTIVE_SELP, EV_NET_CONN, cb_out_2},
- {ST_CALL_PROC, ST_NULL, EV_NET_DISC, cb_disc_1},
- {ST_CALL_PROC, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
+ {ST_CALL_PROC, ST_ACTIVE_SELP, EV_NET_CONN, cb_out_2},
+ {ST_CALL_PROC, ST_NULL, EV_NET_DISC, cb_disc_1},
+ {ST_CALL_PROC, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
- /* Incoming */
- {ST_NULL, ST_CALL_PRES, EV_NET_SETUP, NULL},
+ /* Incoming */
+ {ST_NULL, ST_CALL_PRES, EV_NET_SETUP, NULL},
- {ST_CALL_PRES, ST_INCM_PROC, EV_USR_PROCED_REQ, cb_in_1},
- {ST_CALL_PRES, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
+ {ST_CALL_PRES, ST_INCM_PROC, EV_USR_PROCED_REQ, cb_in_1},
+ {ST_CALL_PRES, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
- {ST_INCM_PROC, ST_CONN_REQ, EV_USR_SETUP_RESP, cb_in_2},
- {ST_INCM_PROC, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
+ {ST_INCM_PROC, ST_CONN_REQ, EV_USR_SETUP_RESP, cb_in_2},
+ {ST_INCM_PROC, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
- {ST_CONN_REQ, ST_ACTIVE_SELP, EV_NET_CONN_ACK, cb_in_3},
+ {ST_CONN_REQ, ST_ACTIVE_SELP, EV_NET_CONN_ACK, cb_in_3},
- /* Active */
- {ST_ACTIVE, ST_NULL, EV_NET_DISC, cb_disc_1},
- {ST_ACTIVE, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
- {ST_ACTIVE, ST_NULL, EV_NET_RELEASE, cb_disc_3},
+ /* Active */
+ {ST_ACTIVE, ST_NULL, EV_NET_DISC, cb_disc_1},
+ {ST_ACTIVE, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
+ {ST_ACTIVE, ST_NULL, EV_NET_RELEASE, cb_disc_3},
- /* Disconnect */
+ /* Disconnect */
- {ST_DISC_REQ, ST_NULL, EV_NET_DISC, cb_disc_1},
- {ST_DISC_REQ, ST_NULL, EV_NET_RELEASE, cb_disc_3},
+ {ST_DISC_REQ, ST_NULL, EV_NET_DISC, cb_disc_1},
+ {ST_DISC_REQ, ST_NULL, EV_NET_RELEASE, cb_disc_3},
- /* protocol selection */
- {ST_ACTIVE_SELP, ST_ACTIVE_ACTV, EV_NET_SELP_RESP, cb_selp_1},
- {ST_ACTIVE_SELP, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
+ /* protocol selection */
+ {ST_ACTIVE_SELP, ST_ACTIVE_ACTV, EV_NET_SELP_RESP, cb_selp_1},
+ {ST_ACTIVE_SELP, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
- {ST_ACTIVE_ACTV, ST_ACTIVE, EV_NET_ACTV_RESP, cb_open},
- {ST_ACTIVE_ACTV, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
+ {ST_ACTIVE_ACTV, ST_ACTIVE, EV_NET_ACTV_RESP, cb_open},
+ {ST_ACTIVE_ACTV, ST_DISC_REQ, EV_USR_RELEASE_REQ, cb_disc_2},
- /* Timers */
- {ST_CALL_PROC, ST_DISC_REQ, EV_TIMER, cb_disc_2},
- {ST_DISC_REQ, ST_NULL, EV_TIMER, cb_disc_3},
- {ST_ACTIVE_SELP, ST_DISC_REQ, EV_TIMER, cb_disc_2},
- {ST_ACTIVE_ACTV, ST_DISC_REQ, EV_TIMER, cb_disc_2},
- {ST_INCM_PROC, ST_DISC_REQ, EV_TIMER, cb_disc_2},
- {ST_CONN_REQ, ST_CONN_REQ, EV_TIMER, cb_in_2},
-
- {0xff, 0, 0, NULL}
+ /* Timers */
+ {ST_CALL_PROC, ST_DISC_REQ, EV_TIMER, cb_disc_2},
+ {ST_DISC_REQ, ST_NULL, EV_TIMER, cb_disc_3},
+ {ST_ACTIVE_SELP, ST_DISC_REQ, EV_TIMER, cb_disc_2},
+ {ST_ACTIVE_ACTV, ST_DISC_REQ, EV_TIMER, cb_disc_2},
+ {ST_INCM_PROC, ST_DISC_REQ, EV_TIMER, cb_disc_2},
+ {ST_CONN_REQ, ST_CONN_REQ, EV_TIMER, cb_in_2},
+
+ {0xff, 0, 0, NULL}
};
static void pcbit_fsm_timer(unsigned long data)
{
- struct pcbit_dev *dev;
- struct pcbit_chan *chan;
+ struct pcbit_dev *dev;
+ struct pcbit_chan *chan;
- chan = (struct pcbit_chan *) data;
+ chan = (struct pcbit_chan *) data;
- del_timer(&chan->fsm_timer);
- chan->fsm_timer.function = NULL;
+ del_timer(&chan->fsm_timer);
+ chan->fsm_timer.function = NULL;
- dev = chan2dev(chan);
+ dev = chan2dev(chan);
- if (dev == NULL) {
- printk(KERN_WARNING "pcbit: timer for unknown device\n");
- return;
- }
+ if (dev == NULL) {
+ printk(KERN_WARNING "pcbit: timer for unknown device\n");
+ return;
+ }
- pcbit_fsm_event(dev, chan, EV_TIMER, NULL);
+ pcbit_fsm_event(dev, chan, EV_TIMER, NULL);
}
void pcbit_fsm_event(struct pcbit_dev *dev, struct pcbit_chan *chan,
- unsigned short event, struct callb_data *data)
+ unsigned short event, struct callb_data *data)
{
- struct fsm_entry * action;
+ struct fsm_entry *action;
struct fsm_timer_entry *tentry;
unsigned long flags;
spin_lock_irqsave(&dev->lock, flags);
- for (action = fsm_table; action->init != 0xff; action++)
- if (action->init == chan->fsm_state && action->event == event)
- break;
-
+ for (action = fsm_table; action->init != 0xff; action++)
+ if (action->init == chan->fsm_state && action->event == event)
+ break;
+
if (action->init == 0xff) {
-
+
spin_unlock_irqrestore(&dev->lock, flags);
- printk(KERN_DEBUG "fsm error: event %x on state %x\n",
- event, chan->fsm_state);
+ printk(KERN_DEBUG "fsm error: event %x on state %x\n",
+ event, chan->fsm_state);
return;
}
- if (chan->fsm_timer.function) {
- del_timer(&chan->fsm_timer);
- chan->fsm_timer.function = NULL;
- }
+ if (chan->fsm_timer.function) {
+ del_timer(&chan->fsm_timer);
+ chan->fsm_timer.function = NULL;
+ }
chan->fsm_state = action->final;
-
+
pcbit_state_change(dev, chan, action->init, event, action->final);
- for (tentry = fsm_timers; tentry->init != 0xff; tentry++)
- if (tentry->init == chan->fsm_state)
- break;
+ for (tentry = fsm_timers; tentry->init != 0xff; tentry++)
+ if (tentry->init == chan->fsm_state)
+ break;
- if (tentry->init != 0xff) {
- init_timer(&chan->fsm_timer);
- chan->fsm_timer.function = &pcbit_fsm_timer;
- chan->fsm_timer.data = (ulong) chan;
- chan->fsm_timer.expires = jiffies + tentry->timeout * HZ;
- add_timer(&chan->fsm_timer);
- }
+ if (tentry->init != 0xff) {
+ init_timer(&chan->fsm_timer);
+ chan->fsm_timer.function = &pcbit_fsm_timer;
+ chan->fsm_timer.data = (ulong) chan;
+ chan->fsm_timer.expires = jiffies + tentry->timeout * HZ;
+ add_timer(&chan->fsm_timer);
+ }
spin_unlock_irqrestore(&dev->lock, flags);
action->callb(dev, chan, data);
}
-
-
-
-
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