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isdn4linux/drivers/isdn/eicon/eicon_idi.c

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/* $Id$
*
* ISDN lowlevel-module for Eicon.Diehl active cards.
* IDI interface
*
* Copyright 1998,99 by Armin Schindler (mac@melware.de)
* Copyright 1999 Cytronics & Melware (info@melware.de)
*
* 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Log$
* Revision 1.20 1999/09/21 20:35:43 armin
* added more error checking.
*
* Revision 1.19 1999/09/21 20:06:40 armin
* Added pointer checks.
*
* Revision 1.18 1999/09/07 12:48:05 armin
* Prepared for sub-address usage.
*
* Revision 1.17 1999/09/07 12:35:39 armin
* Better checking and channel Id handling.
*
* Revision 1.16 1999/09/04 13:44:19 armin
* Fix of V.42 analog Modem negotiation handling.
*
* Revision 1.15 1999/08/28 21:32:50 armin
* Prepared for fax related functions.
* Now compilable without errors/warnings.
*
* Revision 1.14 1999/08/28 20:24:40 armin
* Corrected octet 3/3a in CPN/OAD information element.
* Thanks to John Simpson <xfl23@dial.pipex.com>
*
* Revision 1.13 1999/08/22 20:26:44 calle
* backported changes from kernel 2.3.14:
* - several #include "config.h" gone, others come.
* - "struct device" changed to "struct net_device" in 2.3.14, added a
* define in isdn_compat.h for older kernel versions.
*
* Revision 1.12 1999/08/18 20:16:59 armin
* Added XLOG function for all cards.
* Bugfix of alloc_skb NULL pointer.
*
* Revision 1.11 1999/07/25 15:12:03 armin
* fix of some debug logs.
* enabled ISA-cards option.
*
* Revision 1.10 1999/07/11 17:16:24 armin
* Bugfixes in queue handling.
* Added DSP-DTMF decoder functions.
* Reorganized ack_handler.
*
* Revision 1.9 1999/03/29 11:19:42 armin
* I/O stuff now in seperate file (eicon_io.c)
* Old ISA type cards (S,SX,SCOM,Quadro,S2M) implemented.
*
* Revision 1.8 1999/03/02 12:37:43 armin
* Added some important checks.
* Analog Modem with DSP.
* Channels will be added to Link-Level after loading firmware.
*
* Revision 1.7 1999/02/03 18:34:35 armin
* Channel selection for outgoing calls w/o CHI.
* Added channel # in debug messages.
* L2 Transparent should work with 800 byte/packet now.
*
* Revision 1.6 1999/01/26 07:18:59 armin
* Bug with wrong added CPN fixed.
*
* Revision 1.5 1999/01/24 20:14:11 armin
* Changed and added debug stuff.
* Better data sending. (still problems with tty's flip buffer)
*
* Revision 1.4 1999/01/10 18:46:05 armin
* Bug with wrong values in HLC fixed.
* Bytes to send are counted and limited now.
*
* Revision 1.3 1999/01/05 14:49:34 armin
* Added experimental usage of full BC and HLC for
* speech, 3.1kHz audio, fax gr.2/3
*
* Revision 1.2 1999/01/04 13:19:29 armin
* Channel status with listen-request wrong - fixed.
*
* Revision 1.1 1999/01/01 18:09:41 armin
* First checkin of new eicon driver.
* DIVA-Server BRI/PCI and PRI/PCI are supported.
* Old diehl code is obsolete.
*
*
*/
#include <linux/config.h>
#define __NO_VERSION__
#include "eicon.h"
#include "eicon_idi.h"
#include "eicon_dsp.h"
#undef EICON_FULL_SERVICE_OKTETT
char *eicon_idi_revision = "$Revision$";
eicon_manifbuf *manbuf;
static char BC_Speech[3] = { 0x80, 0x90, 0xa3 };
static char BC_31khz[3] = { 0x90, 0x90, 0xa3 };
static char BC_64k[2] = { 0x88, 0x90 };
static char BC_video[3] = { 0x91, 0x90, 0xa5 };
#ifdef EICON_FULL_SERVICE_OKTETT
/*
static char HLC_telephony[2] = { 0x91, 0x81 };
*/
static char HLC_faxg3[2] = { 0x91, 0x84 };
#endif
int eicon_idi_manage_assign(eicon_card *card);
int eicon_idi_manage_remove(eicon_card *card);
int idi_fill_in_T30(eicon_chan *chan, unsigned char *buffer);
int
idi_assign_req(eicon_REQ *reqbuf, int signet, eicon_chan *chan)
{
int l = 0;
int tmp;
tmp = 0;
if (!signet) {
/* Signal Layer */
reqbuf->XBuffer.P[l++] = CAI;
reqbuf->XBuffer.P[l++] = 1;
reqbuf->XBuffer.P[l++] = 0;
reqbuf->XBuffer.P[l++] = KEY;
reqbuf->XBuffer.P[l++] = 3;
reqbuf->XBuffer.P[l++] = 'I';
reqbuf->XBuffer.P[l++] = '4';
reqbuf->XBuffer.P[l++] = 'L';
reqbuf->XBuffer.P[l++] = SHIFT|6;
reqbuf->XBuffer.P[l++] = SIN;
reqbuf->XBuffer.P[l++] = 2;
reqbuf->XBuffer.P[l++] = 0;
reqbuf->XBuffer.P[l++] = 0;
reqbuf->XBuffer.P[l++] = 0; /* end */
reqbuf->Req = ASSIGN;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 0;
reqbuf->XBuffer.length = l;
reqbuf->Reference = 0; /* Sig Entity */
}
else {
/* Network Layer */
reqbuf->XBuffer.P[l++] = CAI;
reqbuf->XBuffer.P[l++] = 1;
reqbuf->XBuffer.P[l++] = chan->e.D3Id;
reqbuf->XBuffer.P[l++] = LLC;
reqbuf->XBuffer.P[l++] = 2;
switch(chan->l2prot) {
case ISDN_PROTO_L2_HDLC:
reqbuf->XBuffer.P[l++] = 2;
break;
case ISDN_PROTO_L2_X75I:
case ISDN_PROTO_L2_X75UI:
case ISDN_PROTO_L2_X75BUI:
reqbuf->XBuffer.P[l++] = 5;
break;
case ISDN_PROTO_L2_TRANS:
reqbuf->XBuffer.P[l++] = 2;
break;
case ISDN_PROTO_L2_MODEM:
if (chan->fsm_state == EICON_STATE_IWAIT)
reqbuf->XBuffer.P[l++] = 9; /* V.42 incoming */
else
reqbuf->XBuffer.P[l++] = 10; /* V.42 */
break;
case ISDN_PROTO_L2_FAX:
if (chan->fsm_state == EICON_STATE_IWAIT)
reqbuf->XBuffer.P[l++] = 3; /* autoconnect on incoming */
else
reqbuf->XBuffer.P[l++] = 2;
break;
default:
reqbuf->XBuffer.P[l++] = 1;
}
switch(chan->l3prot) {
case ISDN_PROTO_L3_FAX:
#ifdef CONFIG_ISDN_TTY_FAX
reqbuf->XBuffer.P[l++] = 6;
reqbuf->XBuffer.P[l++] = NLC;
tmp = idi_fill_in_T30(chan, &reqbuf->XBuffer.P[l+1]);
reqbuf->XBuffer.P[l++] = tmp;
l += tmp;
break;
#endif
case ISDN_PROTO_L3_TRANS:
default:
reqbuf->XBuffer.P[l++] = 4;
}
reqbuf->XBuffer.P[l++] = 0; /* end */
reqbuf->Req = ASSIGN;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 0x20;
reqbuf->XBuffer.length = l;
reqbuf->Reference = 1; /* Net Entity */
}
return(0);
}
int
idi_put_req(eicon_REQ *reqbuf, int rq, int signet)
{
reqbuf->Req = rq;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 1;
reqbuf->XBuffer.length = 1;
reqbuf->XBuffer.P[0] = 0;
reqbuf->Reference = signet;
return(0);
}
int
idi_call_res_req(eicon_REQ *reqbuf, eicon_chan *chan)
{
int l = 9;
reqbuf->Req = CALL_RES;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 1;
reqbuf->XBuffer.P[0] = CAI;
reqbuf->XBuffer.P[1] = 6;
reqbuf->XBuffer.P[2] = 9;
reqbuf->XBuffer.P[3] = 0;
reqbuf->XBuffer.P[4] = 0;
reqbuf->XBuffer.P[5] = 0;
reqbuf->XBuffer.P[6] = 32;
reqbuf->XBuffer.P[7] = 3;
switch(chan->l2prot) {
case ISDN_PROTO_L2_X75I:
case ISDN_PROTO_L2_X75UI:
case ISDN_PROTO_L2_X75BUI:
case ISDN_PROTO_L2_HDLC:
reqbuf->XBuffer.P[1] = 1;
reqbuf->XBuffer.P[2] = 0x05;
l = 4;
break;
case ISDN_PROTO_L2_V11096:
reqbuf->XBuffer.P[2] = 0x0d;
reqbuf->XBuffer.P[3] = 5;
reqbuf->XBuffer.P[4] = 0;
break;
case ISDN_PROTO_L2_V11019:
reqbuf->XBuffer.P[2] = 0x0d;
reqbuf->XBuffer.P[3] = 6;
reqbuf->XBuffer.P[4] = 0;
break;
case ISDN_PROTO_L2_V11038:
reqbuf->XBuffer.P[2] = 0x0d;
reqbuf->XBuffer.P[3] = 7;
reqbuf->XBuffer.P[4] = 0;
break;
case ISDN_PROTO_L2_MODEM:
reqbuf->XBuffer.P[2] = 0x11;
reqbuf->XBuffer.P[3] = 7;
reqbuf->XBuffer.P[4] = 0;
reqbuf->XBuffer.P[5] = 0;
reqbuf->XBuffer.P[6] = 128;
reqbuf->XBuffer.P[7] = 0;
break;
case ISDN_PROTO_L2_FAX:
reqbuf->XBuffer.P[2] = 0x10;
reqbuf->XBuffer.P[3] = 0;
reqbuf->XBuffer.P[4] = 0;
reqbuf->XBuffer.P[5] = 0;
reqbuf->XBuffer.P[6] = 128;
reqbuf->XBuffer.P[7] = 0;
break;
case ISDN_PROTO_L2_TRANS:
switch(chan->l3prot) {
case ISDN_PROTO_L3_TRANSDSP:
reqbuf->XBuffer.P[2] = 22; /* DTMF, audio events on */
}
break;
}
reqbuf->XBuffer.P[8] = 0;
reqbuf->XBuffer.length = l;
reqbuf->Reference = 0; /* Sig Entity */
eicon_log(NULL, 8, "idi_req: Ch%d: Call_Res\n", chan->No);
return(0);
}
int
idi_do_req(eicon_card *card, eicon_chan *chan, int cmd, int layer)
{
struct sk_buff *skb;
struct sk_buff *skb2;
eicon_REQ *reqbuf;
eicon_chan_ptr *chan2;
skb = alloc_skb(270 + sizeof(eicon_REQ), GFP_ATOMIC);
skb2 = alloc_skb(sizeof(eicon_chan_ptr), GFP_ATOMIC);
if ((!skb) || (!skb2)) {
eicon_log(card, 1, "idi_err: Ch%d: alloc_skb failed in do_req()\n", chan->No);
if (skb)
dev_kfree_skb(skb);
if (skb2)
dev_kfree_skb(skb2);
return -ENOMEM;
}
chan2 = (eicon_chan_ptr *)skb_put(skb2, sizeof(eicon_chan_ptr));
chan2->ptr = chan;
reqbuf = (eicon_REQ *)skb_put(skb, 270 + sizeof(eicon_REQ));
eicon_log(card, 8, "idi_req: Ch%d: req %x (%s)\n", chan->No, cmd, (layer)?"Net":"Sig");
if (layer) cmd |= 0x700;
switch(cmd) {
case ASSIGN:
case ASSIGN|0x700:
idi_assign_req(reqbuf, layer, chan);
break;
case REMOVE:
case REMOVE|0x700:
idi_put_req(reqbuf, REMOVE, layer);
break;
case INDICATE_REQ:
idi_put_req(reqbuf, INDICATE_REQ, 0);
break;
case HANGUP:
idi_put_req(reqbuf, HANGUP, 0);
break;
case REJECT:
idi_put_req(reqbuf, REJECT, 0);
break;
case CALL_ALERT:
idi_put_req(reqbuf, CALL_ALERT, 0);
break;
case CALL_RES:
idi_call_res_req(reqbuf, chan);
break;
case IDI_N_CONNECT|0x700:
idi_put_req(reqbuf, IDI_N_CONNECT, 1);
break;
case IDI_N_CONNECT_ACK|0x700:
idi_put_req(reqbuf, IDI_N_CONNECT_ACK, 1);
break;
case IDI_N_DISC|0x700:
idi_put_req(reqbuf, IDI_N_DISC, 1);
break;
case IDI_N_DISC_ACK|0x700:
idi_put_req(reqbuf, IDI_N_DISC_ACK, 1);
break;
default:
eicon_log(card, 1, "idi_req: Ch%d: Unknown request\n", chan->No);
dev_kfree_skb(skb);
dev_kfree_skb(skb2);
return(-1);
}
skb_queue_tail(&chan->e.X, skb);
skb_queue_tail(&card->sndq, skb2);
eicon_schedule_tx(card);
return(0);
}
int
eicon_idi_listen_req(eicon_card *card, eicon_chan *chan)
{
if ((!card) || (!chan))
return 1;
eicon_log(card, 16, "idi_req: Ch%d: Listen_Req eazmask=0x%x\n",chan->No, chan->eazmask);
if (!chan->e.D3Id) {
idi_do_req(card, chan, ASSIGN, 0);
}
if (chan->fsm_state == EICON_STATE_NULL) {
idi_do_req(card, chan, INDICATE_REQ, 0);
chan->fsm_state = EICON_STATE_LISTEN;
}
return(0);
}
unsigned char
idi_si2bc(int si1, int si2, char *bc, char *hlc)
{
hlc[0] = 0;
switch(si1) {
case 1:
bc[0] = 0x90; /* 3,1 kHz audio */
bc[1] = 0x90; /* 64 kbit/s */
bc[2] = 0xa3; /* G.711 A-law */
#ifdef EICON_FULL_SERVICE_OKTETT
if (si2 == 1) {
bc[0] = 0x80; /* Speech */
hlc[0] = 0x02; /* hlc len */
hlc[1] = 0x91; /* first hic */
hlc[2] = 0x81; /* Telephony */
}
#endif
return(3);
case 2:
bc[0] = 0x90; /* 3,1 kHz audio */
bc[1] = 0x90; /* 64 kbit/s */
bc[2] = 0xa3; /* G.711 A-law */
#ifdef EICON_FULL_SERVICE_OKTETT
if (si2 == 2) {
hlc[0] = 0x02; /* hlc len */
hlc[1] = 0x91; /* first hic */
hlc[2] = 0x84; /* Fax Gr.2/3 */
}
#endif
return(3);
case 5:
case 7:
default:
bc[0] = 0x88;
bc[1] = 0x90;
return(2);
}
return (0);
}
int
idi_hangup(eicon_card *card, eicon_chan *chan)
{
if ((!card) || (!chan))
return 1;
if ((chan->fsm_state == EICON_STATE_ACTIVE) ||
(chan->fsm_state == EICON_STATE_WMCONN)) {
if (chan->e.B2Id) idi_do_req(card, chan, IDI_N_DISC, 1);
}
if (chan->e.B2Id) idi_do_req(card, chan, REMOVE, 1);
idi_do_req(card, chan, HANGUP, 0);
chan->fsm_state = EICON_STATE_NULL;
eicon_log(card, 8, "idi_req: Ch%d: Hangup\n", chan->No);
#ifdef CONFIG_ISDN_TTY_FAX
chan->fax = 0;
#endif
return(0);
}
int
idi_connect_res(eicon_card *card, eicon_chan *chan)
{
if ((!card) || (!chan))
return 1;
chan->fsm_state = EICON_STATE_IWAIT;
idi_do_req(card, chan, CALL_RES, 0);
/* check if old NetID has been removed */
if (chan->e.B2Id) {
eicon_log(card, 1, "idi_err: Ch%d: Old NetID %x was not removed.\n",
chan->No, chan->e.B2Id);
idi_do_req(card, chan, REMOVE, 1);
}
idi_do_req(card, chan, ASSIGN, 1);
return(0);
}
int
idi_connect_req(eicon_card *card, eicon_chan *chan, char *phone,
char *eazmsn, int si1, int si2)
{
int l = 0;
int i;
unsigned char tmp;
unsigned char *sub, *sp;
unsigned char bc[5];
unsigned char hlc[5];
struct sk_buff *skb;
struct sk_buff *skb2;
eicon_REQ *reqbuf;
eicon_chan_ptr *chan2;
if ((!card) || (!chan))
return 1;
skb = alloc_skb(270 + sizeof(eicon_REQ), GFP_ATOMIC);
skb2 = alloc_skb(sizeof(eicon_chan_ptr), GFP_ATOMIC);
if ((!skb) || (!skb2)) {
eicon_log(card, 1, "idi_err: Ch%d: alloc_skb failed in connect_req()\n", chan->No);
if (skb)
dev_kfree_skb(skb);
if (skb2)
dev_kfree_skb(skb2);
return -ENOMEM;
}
chan2 = (eicon_chan_ptr *)skb_put(skb2, sizeof(eicon_chan_ptr));
chan2->ptr = chan;
reqbuf = (eicon_REQ *)skb_put(skb, 270 + sizeof(eicon_REQ));
reqbuf->Req = CALL_REQ;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 1;
sub = NULL;
sp = phone;
while (*sp) {
if (*sp == '.') {
sub = sp + 1;
*sp = 0;
} else
sp++;
}
reqbuf->XBuffer.P[l++] = CPN;
reqbuf->XBuffer.P[l++] = strlen(phone) + 1;
reqbuf->XBuffer.P[l++] = 0x81;
for(i=0; i<strlen(phone);i++)
reqbuf->XBuffer.P[l++] = phone[i] & 0x7f;
if (sub) {
reqbuf->XBuffer.P[l++] = DSA;
reqbuf->XBuffer.P[l++] = strlen(sub) + 2;
reqbuf->XBuffer.P[l++] = 0x80; /* NSAP coded */
reqbuf->XBuffer.P[l++] = 0x50; /* local IDI format */
while (*sub)
reqbuf->XBuffer.P[l++] = *sub++ & 0x7f;
}
sub = NULL;
sp = eazmsn;
while (*sp) {
if (*sp == '.') {
sub = sp + 1;
*sp = 0;
} else
sp++;
}
reqbuf->XBuffer.P[l++] = OAD;
reqbuf->XBuffer.P[l++] = strlen(eazmsn) + 2;
reqbuf->XBuffer.P[l++] = 0x01;
reqbuf->XBuffer.P[l++] = 0x80;
for(i=0; i<strlen(eazmsn);i++)
reqbuf->XBuffer.P[l++] = eazmsn[i] & 0x7f;
if (sub) {
reqbuf->XBuffer.P[l++] = OSA;
reqbuf->XBuffer.P[l++] = strlen(sub) + 2;
reqbuf->XBuffer.P[l++] = 0x80; /* NSAP coded */
reqbuf->XBuffer.P[l++] = 0x50; /* local IDI format */
while (*sub)
reqbuf->XBuffer.P[l++] = *sub++ & 0x7f;
}
if ((tmp = idi_si2bc(si1, si2, bc, hlc)) > 0) {
reqbuf->XBuffer.P[l++] = BC;
reqbuf->XBuffer.P[l++] = tmp;
for(i=0; i<tmp;i++)
reqbuf->XBuffer.P[l++] = bc[i];
if ((tmp=hlc[0])) {
reqbuf->XBuffer.P[l++] = HLC;
reqbuf->XBuffer.P[l++] = tmp;
for(i=1; i<=tmp;i++)
reqbuf->XBuffer.P[l++] = hlc[i];
}
}
reqbuf->XBuffer.P[l++] = CAI;
reqbuf->XBuffer.P[l++] = 6;
reqbuf->XBuffer.P[l++] = 0x09;
reqbuf->XBuffer.P[l++] = 0;
reqbuf->XBuffer.P[l++] = 0;
reqbuf->XBuffer.P[l++] = 0;
reqbuf->XBuffer.P[l++] = 32;
reqbuf->XBuffer.P[l++] = 3;
switch(chan->l2prot) {
case ISDN_PROTO_L2_X75I:
case ISDN_PROTO_L2_X75UI:
case ISDN_PROTO_L2_X75BUI:
case ISDN_PROTO_L2_HDLC:
reqbuf->XBuffer.P[l-6] = 5;
reqbuf->XBuffer.P[l-7] = 1;
l -= 5;
break;
case ISDN_PROTO_L2_V11096:
reqbuf->XBuffer.P[l-7] = 3;
reqbuf->XBuffer.P[l-6] = 0x0d;
reqbuf->XBuffer.P[l-5] = 5;
reqbuf->XBuffer.P[l-4] = 0;
l -= 3;
break;
case ISDN_PROTO_L2_V11019:
reqbuf->XBuffer.P[l-7] = 3;
reqbuf->XBuffer.P[l-6] = 0x0d;
reqbuf->XBuffer.P[l-5] = 6;
reqbuf->XBuffer.P[l-4] = 0;
l -= 3;
break;
case ISDN_PROTO_L2_V11038:
reqbuf->XBuffer.P[l-7] = 3;
reqbuf->XBuffer.P[l-6] = 0x0d;
reqbuf->XBuffer.P[l-5] = 7;
reqbuf->XBuffer.P[l-4] = 0;
l -= 3;
break;
case ISDN_PROTO_L2_MODEM:
reqbuf->XBuffer.P[l-6] = 0x11;
reqbuf->XBuffer.P[l-5] = 7;
reqbuf->XBuffer.P[l-4] = 0;
reqbuf->XBuffer.P[l-3] = 0;
reqbuf->XBuffer.P[l-2] = 128;
reqbuf->XBuffer.P[l-1] = 0;
break;
case ISDN_PROTO_L2_FAX:
reqbuf->XBuffer.P[l-6] = 0x10;
reqbuf->XBuffer.P[l-5] = 0;
reqbuf->XBuffer.P[l-4] = 0;
reqbuf->XBuffer.P[l-3] = 0;
reqbuf->XBuffer.P[l-2] = 128;
reqbuf->XBuffer.P[l-1] = 0;
break;
case ISDN_PROTO_L2_TRANS:
switch(chan->l3prot) {
case ISDN_PROTO_L3_TRANSDSP:
reqbuf->XBuffer.P[l-6] = 22; /* DTMF, audio events on */
}
break;
}
reqbuf->XBuffer.P[l++] = 0; /* end */
reqbuf->XBuffer.length = l;
reqbuf->Reference = 0; /* Sig Entity */
skb_queue_tail(&chan->e.X, skb);
skb_queue_tail(&card->sndq, skb2);
eicon_schedule_tx(card);
eicon_log(card, 8, "idi_req: Ch%d: Conn_Req %s -> %s\n",chan->No, eazmsn, phone);
return(0);
}
void
idi_IndParse(eicon_card *ccard, eicon_chan *chan, idi_ind_message *message, unsigned char *buffer, int len)
{
int i,j;
int pos = 0;
int codeset = 0;
int wlen = 0;
int lock = 0;
__u8 w;
__u16 code;
isdn_ctrl cmd;
memset(message, 0, sizeof(idi_ind_message));
if ((!len) || (!buffer[pos])) return;
while(pos <= len) {
w = buffer[pos++];
if (!w) return;
if (w & 0x80) {
wlen = 0;
}
else {
wlen = buffer[pos++];
}
if (pos > len) return;
if (lock & 0x80) lock &= 0x7f;
else codeset = lock;
if((w&0xf0) == SHIFT) {
codeset = w;
if(!(codeset & 0x08)) lock = codeset & 7;
codeset &= 7;
lock |= 0x80;
}
else {
if (w==ESC && wlen >=2) {
code = buffer[pos++]|0x800;
wlen--;
}
else code = w;
code |= (codeset<<8);
if (pos + wlen > len) {
eicon_log(ccard, 1, "idi_err: Ch%d: IElen %d of %x exceeds Ind_Length (+%d)\n", chan->No,
wlen, code, (pos + wlen) - len);
return;
}
switch(code) {
case OAD:
if (wlen > sizeof(message->oad)) {
pos += wlen;
break;
}
j = 1;
if (wlen) {
message->plan = buffer[pos++];
if (message->plan &0x80)
message->screen = 0;
else {
message->screen = buffer[pos++];
j = 2;
}
}
for(i=0; i < wlen-j; i++)
message->oad[i] = buffer[pos++];
eicon_log(ccard, 2, "idi_inf: Ch%d: OAD=(0x%02x,0x%02x) %s\n", chan->No,
message->plan, message->screen, message->oad);
break;
case RDN:
if (wlen > sizeof(message->rdn)) {
pos += wlen;
break;
}
j = 1;
if (wlen) {
if (!(buffer[pos++] & 0x80)) {
pos++;
j = 2;
}
}
for(i=0; i < wlen-j; i++)
message->rdn[i] = buffer[pos++];
eicon_log(ccard, 2, "idi_inf: Ch%d: RDN= %s\n", chan->No,
message->rdn);
break;
case CPN:
if (wlen > sizeof(message->cpn)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->cpn[i] = buffer[pos++];
eicon_log(ccard, 2, "idi_inf: Ch%d: CPN=(0x%02x) %s\n", chan->No,
(__u8)message->cpn[0], message->cpn + 1);
break;
case DSA:
if (wlen > sizeof(message->dsa)) {
pos += wlen;
break;
}
pos += 2;
for(i=0; i < wlen-2; i++)
message->dsa[i] = buffer[pos++];
eicon_log(ccard, 2, "idi_inf: Ch%d: DSA=%s\n", chan->No, message->dsa);
break;
case OSA:
if (wlen > sizeof(message->osa)) {
pos += wlen;
break;
}
pos += 2;
for(i=0; i < wlen-2; i++)
message->osa[i] = buffer[pos++];
eicon_log(ccard, 2, "idi_inf: Ch%d: OSA=%s\n", chan->No, message->osa);
break;
case BC:
if (wlen > sizeof(message->bc)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->bc[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: BC = 0x%02x 0x%02x 0x%02x\n", chan->No,
message->bc[0],message->bc[1],message->bc[2]);
break;
case 0x800|BC:
if (wlen > sizeof(message->e_bc)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->e_bc[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: ESC/BC=%d\n", chan->No, message->bc[0]);
break;
case LLC:
if (wlen > sizeof(message->llc)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->llc[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: LLC=%d %d %d %d\n", chan->No, message->llc[0],
message->llc[1],message->llc[2],message->llc[3]);
break;
case HLC:
if (wlen > sizeof(message->hlc)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->hlc[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: HLC=%x %x %x %x %x\n", chan->No,
message->hlc[0], message->hlc[1],
message->hlc[2], message->hlc[3], message->hlc[4]);
break;
case DSP:
case 0x600|DSP:
if (wlen > sizeof(message->display)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->display[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: Display: %s\n", chan->No,
message->display);
break;
case 0x600|KEY:
if (wlen > sizeof(message->keypad)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->keypad[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: Keypad: %s\n", chan->No,
message->keypad);
break;
case NI:
case 0x600|NI:
if (wlen) {
switch(buffer[pos] & 127) {
case 0:
eicon_log(ccard, 4, "idi_inf: Ch%d: User suspended.\n", chan->No);
break;
case 1:
eicon_log(ccard, 4, "idi_inf: Ch%d: User resumed.\n", chan->No);
break;
case 2:
eicon_log(ccard, 4, "idi_inf: Ch%d: Bearer service change.\n", chan->No);
break;
default:
eicon_log(ccard, 4, "idi_inf: Ch%d: Unknown Notification %x.\n",
chan->No, buffer[pos] & 127);
}
pos += wlen;
}
break;
case PI:
case 0x600|PI:
if (wlen > 1) {
switch(buffer[pos+1] & 127) {
case 1:
eicon_log(ccard, 4, "idi_inf: Ch%d: Call is not end-to-end ISDN.\n", chan->No);
break;
case 2:
eicon_log(ccard, 4, "idi_inf: Ch%d: Destination address is non ISDN.\n", chan->No);
break;
case 3:
eicon_log(ccard, 4, "idi_inf: Ch%d: Origination address is non ISDN.\n", chan->No);
break;
case 4:
eicon_log(ccard, 4, "idi_inf: Ch%d: Call has returned to the ISDN.\n", chan->No);
break;
case 5:
eicon_log(ccard, 4, "idi_inf: Ch%d: Interworking has occurred.\n", chan->No);
break;
case 8:
eicon_log(ccard, 4, "idi_inf: Ch%d: In-band information available.\n", chan->No);
break;
default:
eicon_log(ccard, 4, "idi_inf: Ch%d: Unknown Progress %x.\n",
chan->No, buffer[pos+1] & 127);
}
}
pos += wlen;
break;
case CAU:
if (wlen > sizeof(message->cau)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->cau[i] = buffer[pos++];
memcpy(&chan->cause, &message->cau, 2);
eicon_log(ccard, 4, "idi_inf: Ch%d: CAU=%d %d\n", chan->No,
message->cau[0],message->cau[1]);
break;
case 0x800|CAU:
if (wlen > sizeof(message->e_cau)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->e_cau[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: ECAU=%d %d\n", chan->No,
message->e_cau[0],message->e_cau[1]);
break;
case 0x800|CHI:
if (wlen > sizeof(message->e_chi)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->e_chi[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: ESC/CHI=%d\n", chan->No,
message->e_cau[0]);
break;
case 0x800|0x7a:
pos ++;
message->e_mt=buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: EMT=0x%x\n", chan->No, message->e_mt);
break;
case DT:
if (wlen > sizeof(message->dt)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->dt[i] = buffer[pos++];
eicon_log(ccard, 4, "idi_inf: Ch%d: DT: %02d.%02d.%02d %02d:%02d:%02d\n", chan->No,
message->dt[2], message->dt[1], message->dt[0],
message->dt[3], message->dt[4], message->dt[5]);
break;
case 0x600|SIN:
if (wlen > sizeof(message->sin)) {
pos += wlen;
break;
}
for(i=0; i < wlen; i++)
message->sin[i] = buffer[pos++];
eicon_log(ccard, 2, "idi_inf: Ch%d: SIN=%d %d\n", chan->No,
message->sin[0],message->sin[1]);
break;
case 0x600|CPS:
eicon_log(ccard, 2, "idi_inf: Ch%d: Called Party Status in ind\n", chan->No);
pos += wlen;
break;
case 0x600|CIF:
for (i = 0; i < wlen; i++)
if (buffer[pos + i] != '0') break;
memcpy(&cmd.parm.num, &buffer[pos + i], wlen - i);
cmd.parm.num[wlen - i] = 0;
eicon_log(ccard, 2, "idi_inf: Ch%d: CIF=%s\n", chan->No, cmd.parm.num);
pos += wlen;
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_CINF;
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
break;
case 0x600|DATE:
eicon_log(ccard, 2, "idi_inf: Ch%d: Date in ind\n", chan->No);
pos += wlen;
break;
case 0xe08:
case 0xe7a:
case 0xe04:
case 0xe00:
/* *** TODO *** */
case CHA:
/* Charge advice */
case FTY:
case 0x600|FTY:
case CHI:
case 0x800:
/* Not yet interested in this */
pos += wlen;
break;
case 0x880:
/* Managment Information Element */
if (!manbuf) {
eicon_log(ccard, 1, "idi_err: manbuf not allocated\n");
}
else {
memcpy(&manbuf->data[manbuf->pos], &buffer[pos], wlen);
manbuf->length[manbuf->count] = wlen;
manbuf->count++;
manbuf->pos += wlen;
}
pos += wlen;
break;
default:
pos += wlen;
eicon_log(ccard, 6, "idi_inf: Ch%d: unknown information element 0x%x in ind, len:%x\n",
chan->No, code, wlen);
}
}
}
}
void
idi_bc2si(unsigned char *bc, unsigned char *hlc, unsigned char *si1, unsigned char *si2)
{
si1[0] = 0;
si2[0] = 0;
if (memcmp(bc, BC_Speech, 3) == 0) { /* Speech */
si1[0] = 1;
#ifdef EICON_FULL_SERVICE_OKTETT
si2[0] = 1;
#endif
}
if (memcmp(bc, BC_31khz, 3) == 0) { /* 3.1kHz audio */
si1[0] = 1;
#ifdef EICON_FULL_SERVICE_OKTETT
si2[0] = 2;
if (memcmp(hlc, HLC_faxg3, 2) == 0) { /* Fax Gr.2/3 */
si1[0] = 2;
}
#endif
}
if (memcmp(bc, BC_64k, 2) == 0) { /* unrestricted 64 kbits */
si1[0] = 7;
}
if (memcmp(bc, BC_video, 3) == 0) { /* video */
si1[0] = 4;
}
}
/********************* FAX stuff ***************************/
#ifdef CONFIG_ISDN_TTY_FAX
int
idi_fill_in_T30(eicon_chan *chan, unsigned char *buffer)
{
/* TODO , code follows */
return(0);
}
/* send fax struct */
int
idi_send_edata(eicon_card *card, eicon_chan *chan)
{
/* TODO , code follows */
return (0);
}
void
idi_parse_edata(eicon_card *ccard, eicon_chan *chan, unsigned char *buffer, int len)
{
/* TODO , code follows */
}
void
idi_fax_send_header(eicon_card *card, eicon_chan *chan, int header)
{
/* TODO , code follows */
}
void
idi_fax_cmd(eicon_card *card, eicon_chan *chan)
{
/* TODO , code follows */
}
void
idi_edata_rcveop(eicon_card *card, eicon_chan *chan)
{
/* TODO , code follows */
}
void
idi_reset_fax_stat(eicon_chan *chan)
{
/* TODO , code follows */
}
void
idi_edata_action(eicon_card *ccard, eicon_chan *chan, char *buffer, int len)
{
/* TODO , code follows */
}
void
fax_put_rcv(eicon_card *ccard, eicon_chan *chan, u_char *Data, int len)
{
/* TODO , code follows */
}
void
idi_faxdata_rcv(eicon_card *ccard, eicon_chan *chan, struct sk_buff *skb)
{
/* TODO , code follows */
}
int
idi_fax_send_outbuf(eicon_card *ccard, eicon_chan *chan, eicon_OBJBUFFER *OutBuf)
{
/* TODO , code follows */
return(0);
}
int
idi_faxdata_send(eicon_card *ccard, eicon_chan *chan, struct sk_buff *skb)
{
/* TODO , code follows */
return(0);
}
void
idi_fax_hangup(eicon_card *ccard, eicon_chan *chan)
{
/* TODO , code follows */
}
#endif /******** FAX ********/
int
idi_send_udata(eicon_card *card, eicon_chan *chan, int UReq, u_char *buffer, int len)
{
struct sk_buff *skb;
struct sk_buff *skb2;
eicon_REQ *reqbuf;
eicon_chan_ptr *chan2;
if ((chan->fsm_state == EICON_STATE_NULL) || (chan->fsm_state == EICON_STATE_LISTEN)) {
eicon_log(card, 1, "idi_snd: Ch%d: send udata on state %d !\n", chan->No, chan->fsm_state);
return -ENODEV;
}
eicon_log(card, 8, "idi_snd: Ch%d: udata 0x%x: %d %d %d %d\n", chan->No,
UReq, buffer[0], buffer[1], buffer[2], buffer[3]);
skb = alloc_skb(sizeof(eicon_REQ) + len + 1, GFP_ATOMIC);
skb2 = alloc_skb(sizeof(eicon_chan_ptr), GFP_ATOMIC);
if ((!skb) || (!skb2)) {
eicon_log(card, 1, "idi_err: Ch%d: alloc_skb failed in send_udata()\n", chan->No);
if (skb)
dev_kfree_skb(skb);
if (skb2)
dev_kfree_skb(skb2);
return -ENOMEM;
}
chan2 = (eicon_chan_ptr *)skb_put(skb2, sizeof(eicon_chan_ptr));
chan2->ptr = chan;
reqbuf = (eicon_REQ *)skb_put(skb, 1 + len + sizeof(eicon_REQ));
reqbuf->Req = IDI_N_UDATA;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 1;
reqbuf->XBuffer.length = len + 1;
reqbuf->XBuffer.P[0] = UReq;
memcpy(&reqbuf->XBuffer.P[1], buffer, len);
reqbuf->Reference = 1; /* Net Entity */
skb_queue_tail(&chan->e.X, skb);
skb_queue_tail(&card->sndq, skb2);
eicon_schedule_tx(card);
return (0);
}
void
idi_audio_cmd(eicon_card *ccard, eicon_chan *chan, int cmd, u_char *value)
{
u_char buf[6];
struct enable_dtmf_s *dtmf_buf = (struct enable_dtmf_s *)buf;
if ((!ccard) || (!chan))
return;
memset(buf, 0, 6);
switch(cmd) {
case ISDN_AUDIO_SETDD:
if (value[0]) {
dtmf_buf->tone = (__u16) (value[1] * 5);
dtmf_buf->gap = (__u16) (value[1] * 5);
idi_send_udata(ccard, chan,
DSP_UDATA_REQUEST_ENABLE_DTMF_RECEIVER,
buf, 4);
} else {
idi_send_udata(ccard, chan,
DSP_UDATA_REQUEST_DISABLE_DTMF_RECEIVER,
buf, 0);
}
break;
}
}
void
idi_parse_udata(eicon_card *ccard, eicon_chan *chan, unsigned char *buffer, int len)
{
isdn_ctrl cmd;
eicon_dsp_ind *p = (eicon_dsp_ind *) (&buffer[1]);
static char *connmsg[] =
{"", "V.21", "V.23", "V.22", "V.22bis", "V.32bis", "V.34",
"V.8", "Bell 212A", "Bell 103", "V.29 Leased", "V.33 Leased", "V.90",
"V.21 CH2", "V.27ter", "V.29", "V.33", "V.17"};
static u_char dtmf_code[] = {
'1','4','7','*','2','5','8','0','3','6','9','#','A','B','C','D'
};
if ((!ccard) || (!chan))
return;
switch (buffer[0]) {
case DSP_UDATA_INDICATION_SYNC:
eicon_log(ccard, 16, "idi_ind: Ch%d: UDATA_SYNC time %d\n", chan->No, p->time);
break;
case DSP_UDATA_INDICATION_DCD_OFF:
eicon_log(ccard, 8, "idi_ind: Ch%d: UDATA_DCD_OFF time %d\n", chan->No, p->time);
break;
case DSP_UDATA_INDICATION_DCD_ON:
if ((chan->l2prot == ISDN_PROTO_L2_MODEM) &&
(chan->fsm_state == EICON_STATE_WMCONN)) {
chan->fsm_state = EICON_STATE_ACTIVE;
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_BCONN;
cmd.arg = chan->No;
sprintf(cmd.parm.num, "%d/%s", p->speed, connmsg[p->norm]);
ccard->interface.statcallb(&cmd);
}
eicon_log(ccard, 8, "idi_ind: Ch%d: UDATA_DCD_ON time %d\n", chan->No, p->time);
eicon_log(ccard, 8, "idi_ind: Ch%d: %d %d %d %d\n", chan->No,
p->norm, p->options, p->speed, p->delay);
break;
case DSP_UDATA_INDICATION_CTS_OFF:
eicon_log(ccard, 8, "idi_ind: Ch%d: UDATA_CTS_OFF time %d\n", chan->No, p->time);
break;
case DSP_UDATA_INDICATION_CTS_ON:
eicon_log(ccard, 8, "idi_ind: Ch%d: UDATA_CTS_ON time %d\n", chan->No, p->time);
eicon_log(ccard, 8, "idi_ind: Ch%d: %d %d %d %d\n", chan->No,
p->norm, p->options, p->speed, p->delay);
break;
case DSP_UDATA_INDICATION_DISCONNECT:
eicon_log(ccard, 8, "idi_ind: Ch%d: UDATA_DISCONNECT cause %d\n", chan->No, buffer[1]);
break;
case DSP_UDATA_INDICATION_DTMF_DIGITS_RECEIVED:
eicon_log(ccard, 8, "idi_ind: Ch%d: UDATA_DTMF_REC '%c'\n", chan->No,
dtmf_code[buffer[1]]);
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_AUDIO;
cmd.parm.num[0] = ISDN_AUDIO_DTMF;
cmd.parm.num[1] = dtmf_code[buffer[1]];
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
break;
default:
eicon_log(ccard, 8, "idi_ind: Ch%d: UNHANDLED UDATA Indication 0x%02x\n", chan->No, buffer[0]);
}
}
void
idi_handle_ind(eicon_card *ccard, struct sk_buff *skb)
{
int tmp;
int dlev;
int free_buff;
ulong flags;
struct sk_buff *skb2;
eicon_IND *ind = (eicon_IND *)skb->data;
eicon_chan *chan;
idi_ind_message message;
isdn_ctrl cmd;
if (!ccard)
return;
if ((chan = ccard->IdTable[ind->IndId]) == NULL) {
dev_kfree_skb(skb);
return;
}
if (ind->Ind != 8)
dlev = 144;
else
dlev = 128;
eicon_log(ccard, dlev, "idi_hdl: Ch%d: Ind=%d Id=%x Ch=%d MInd=%d MLen=%d Len=%d\n", chan->No,
ind->Ind,ind->IndId,ind->IndCh,ind->MInd,ind->MLength,ind->RBuffer.length);
free_buff = 1;
/* Signal Layer */
if (chan->e.D3Id == ind->IndId) {
idi_IndParse(ccard, chan, &message, ind->RBuffer.P, ind->RBuffer.length);
switch(ind->Ind) {
case HANGUP:
eicon_log(ccard, 8, "idi_ind: Ch%d: Hangup\n", chan->No);
while((skb2 = skb_dequeue(&chan->e.X))) {
dev_kfree_skb(skb2);
}
save_flags(flags);
cli();
chan->e.busy = 0;
chan->queued = 0;
chan->waitq = 0;
chan->waitpq = 0;
restore_flags(flags);
if (message.e_cau[0] & 0x7f) {
cmd.driver = ccard->myid;
cmd.arg = chan->No;
sprintf(cmd.parm.num,"E%02x%02x",
chan->cause[0]&0x7f, message.e_cau[0]&0x7f);
cmd.command = ISDN_STAT_CAUSE;
ccard->interface.statcallb(&cmd);
}
chan->cause[0] = 0;
#ifdef CONFIG_ISDN_TTY_FAX
if (!chan->e.B2Id)
chan->fax = 0;
#endif
if ((chan->fsm_state == EICON_STATE_ACTIVE) ||
(chan->fsm_state == EICON_STATE_WMCONN)) {
chan->fsm_state = EICON_STATE_NULL;
} else {
if (chan->e.B2Id)
idi_do_req(ccard, chan, REMOVE, 1);
chan->fsm_state = EICON_STATE_NULL;
cmd.driver = ccard->myid;
cmd.arg = chan->No;
cmd.command = ISDN_STAT_DHUP;
ccard->interface.statcallb(&cmd);
eicon_idi_listen_req(ccard, chan);
}
break;
case INDICATE_IND:
eicon_log(ccard, 8, "idi_ind: Ch%d: Indicate_Ind\n", chan->No);
chan->fsm_state = EICON_STATE_ICALL;
idi_bc2si(message.bc, message.hlc, &chan->si1, &chan->si2);
strcpy(chan->cpn, message.cpn + 1);
if (strlen(message.dsa)) {
strcat(chan->cpn, ".");
strcat(chan->cpn, message.dsa);
}
strcpy(chan->oad, message.oad);
if (strlen(message.osa)) {
strcat(chan->oad, ".");
strcat(chan->oad, message.osa);
}
try_stat_icall_again:
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_ICALL;
cmd.arg = chan->No;
cmd.parm.setup.si1 = chan->si1;
cmd.parm.setup.si2 = chan->si2;
strcpy(cmd.parm.setup.eazmsn, chan->cpn);
strcpy(cmd.parm.setup.phone, chan->oad);
cmd.parm.setup.plan = message.plan;
cmd.parm.setup.screen = message.screen;
tmp = ccard->interface.statcallb(&cmd);
switch(tmp) {
case 0: /* no user responding */
idi_do_req(ccard, chan, HANGUP, 0);
chan->fsm_state = EICON_STATE_NULL;
break;
case 1: /* alert */
eicon_log(ccard, 8, "idi_req: Ch%d: Call Alert\n", chan->No);
if ((chan->fsm_state == EICON_STATE_ICALL) || (chan->fsm_state == EICON_STATE_ICALLW)) {
chan->fsm_state = EICON_STATE_ICALL;
idi_do_req(ccard, chan, CALL_ALERT, 0);
}
break;
case 2: /* reject */
eicon_log(ccard, 8, "idi_req: Ch%d: Call Reject\n", chan->No);
idi_do_req(ccard, chan, REJECT, 0);
break;
case 3: /* incomplete number */
eicon_log(ccard, 8, "idi_req: Ch%d: Incomplete Number\n", chan->No);
switch(ccard->type) {
case EICON_CTYPE_MAESTRAP:
case EICON_CTYPE_S2M:
/* TODO (other protocols) */
chan->fsm_state = EICON_STATE_ICALLW;
break;
default:
idi_do_req(ccard, chan, HANGUP, 0);
}
break;
}
break;
case INFO_IND:
eicon_log(ccard, 8, "idi_ind: Ch%d: Info_Ind\n", chan->No);
if ((chan->fsm_state == EICON_STATE_ICALLW) &&
(message.cpn[0])) {
strcat(chan->cpn, message.cpn + 1);
goto try_stat_icall_again;
}
break;
case CALL_IND:
eicon_log(ccard, 8, "idi_ind: Ch%d: Call_Ind\n", chan->No);
if ((chan->fsm_state == EICON_STATE_ICALL) || (chan->fsm_state == EICON_STATE_IWAIT)) {
chan->fsm_state = EICON_STATE_IBWAIT;
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_DCONN;
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
switch(chan->l2prot) {
case ISDN_PROTO_L2_FAX:
#ifdef CONFIG_ISDN_TTY_FAX
if (chan->fax)
chan->fax->phase = ISDN_FAX_PHASE_A;
#endif
break;
case ISDN_PROTO_L2_MODEM:
/* do nothing, wait for connect */
break;
default:
idi_do_req(ccard, chan, IDI_N_CONNECT, 1);
}
} else
idi_hangup(ccard, chan);
break;
case CALL_CON:
eicon_log(ccard, 8, "idi_ind: Ch%d: Call_Con\n", chan->No);
if (chan->fsm_state == EICON_STATE_OCALL) {
chan->fsm_state = EICON_STATE_OBWAIT;
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_DCONN;
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
/* check if old NetID has been removed */
if (chan->e.B2Id) {
eicon_log(ccard, 1, "idi_err: Ch%d: Old NetID %x was not removed.\n",
chan->No, chan->e.B2Id);
idi_do_req(ccard, chan, REMOVE, 1);
}
idi_do_req(ccard, chan, ASSIGN, 1);
idi_do_req(ccard, chan, IDI_N_CONNECT, 1);
#ifdef CONFIG_ISDN_TTY_FAX
if (chan->l2prot == ISDN_PROTO_L2_FAX) {
if (chan->fax)
chan->fax->phase = ISDN_FAX_PHASE_A;
}
#endif
} else
idi_hangup(ccard, chan);
break;
case AOC_IND:
eicon_log(ccard, 8, "idi_ind: Ch%d: Advice of Charge\n", chan->No);
break;
default:
eicon_log(ccard, 8, "idi_ind: Ch%d: UNHANDLED SigIndication 0x%02x\n", chan->No, ind->Ind);
}
}
/* Network Layer */
else if (chan->e.B2Id == ind->IndId) {
if (chan->No == ccard->nchannels) {
/* Management Indication */
idi_IndParse(ccard, chan, &message, ind->RBuffer.P, ind->RBuffer.length);
chan->fsm_state = 1;
}
else
switch(ind->Ind) {
case IDI_N_CONNECT_ACK:
eicon_log(ccard, 16, "idi_ind: Ch%d: N_Connect_Ack\n", chan->No);
if (chan->l2prot == ISDN_PROTO_L2_MODEM) {
chan->fsm_state = EICON_STATE_WMCONN;
break;
}
if (chan->l2prot == ISDN_PROTO_L2_FAX) {
#ifdef CONFIG_ISDN_TTY_FAX
chan->fsm_state = EICON_STATE_ACTIVE;
idi_parse_edata(ccard, chan, ind->RBuffer.P, ind->RBuffer.length);
if (chan->fax) {
if (chan->fax->phase == ISDN_FAX_PHASE_B) {
idi_fax_send_header(ccard, chan, 2);
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_FAXIND;
cmd.arg = chan->No;
chan->fax->r_code = ISDN_TTY_FAX_DCS;
ccard->interface.statcallb(&cmd);
}
}
else {
eicon_log(ccard, 1, "idi_ind: N_CONNECT_ACK with NULL fax struct, ERROR\n");
}
#endif
break;
}
chan->fsm_state = EICON_STATE_ACTIVE;
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_BCONN;
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
break;
case IDI_N_CONNECT:
eicon_log(ccard, 16,"idi_ind: Ch%d: N_Connect\n", chan->No);
if (chan->e.B2Id) idi_do_req(ccard, chan, IDI_N_CONNECT_ACK, 1);
if (chan->l2prot == ISDN_PROTO_L2_FAX) {
break;
}
if (chan->l2prot == ISDN_PROTO_L2_MODEM) {
chan->fsm_state = EICON_STATE_WMCONN;
break;
}
chan->fsm_state = EICON_STATE_ACTIVE;
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_BCONN;
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
break;
case IDI_N_DISC:
eicon_log(ccard, 16, "idi_ind: Ch%d: N_DISC\n", chan->No);
if (chan->e.B2Id) {
idi_do_req(ccard, chan, IDI_N_DISC_ACK, 1);
idi_do_req(ccard, chan, REMOVE, 1);
}
#ifdef CONFIG_ISDN_TTY_FAX
if (chan->l2prot == ISDN_PROTO_L2_FAX) {
idi_parse_edata(ccard, chan, ind->RBuffer.P, ind->RBuffer.length);
idi_fax_hangup(ccard, chan);
}
#endif
save_flags(flags);
cli();
chan->queued = 0;
chan->waitq = 0;
chan->waitpq = 0;
restore_flags(flags);
idi_do_req(ccard, chan, HANGUP, 0);
if (chan->fsm_state == EICON_STATE_ACTIVE) {
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_BHUP;
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
chan->fsm_state = EICON_STATE_NULL;
}
#ifdef CONFIG_ISDN_TTY_FAX
chan->fax = 0;
#endif
break;
case IDI_N_DISC_ACK:
eicon_log(ccard, 16, "idi_ind: Ch%d: N_DISC_ACK\n", chan->No);
#ifdef CONFIG_ISDN_TTY_FAX
if (chan->l2prot == ISDN_PROTO_L2_FAX) {
idi_parse_edata(ccard, chan, ind->RBuffer.P, ind->RBuffer.length);
idi_fax_hangup(ccard, chan);
}
#endif
break;
case IDI_N_DATA_ACK:
eicon_log(ccard, 16, "idi_ind: Ch%d: N_DATA_ACK\n", chan->No);
break;
case IDI_N_DATA:
skb_pull(skb, sizeof(eicon_IND) - 1);
eicon_log(ccard, 128, "idi_rcv: Ch%d: %d bytes\n", chan->No, skb->len);
if (chan->l2prot == ISDN_PROTO_L2_FAX) {
#ifdef CONFIG_ISDN_TTY_FAX
idi_faxdata_rcv(ccard, chan, skb);
#endif
} else {
ccard->interface.rcvcallb_skb(ccard->myid, chan->No, skb);
free_buff = 0;
}
break;
case IDI_N_UDATA:
idi_parse_udata(ccard, chan, ind->RBuffer.P, ind->RBuffer.length);
break;
#ifdef CONFIG_ISDN_TTY_FAX
case IDI_N_EDATA:
idi_edata_action(ccard, chan, ind->RBuffer.P, ind->RBuffer.length);
break;
#endif
default:
eicon_log(ccard, 8, "idi_ind: Ch%d: UNHANDLED NetIndication 0x%02x\n", chan->No, ind->Ind);
}
}
else {
eicon_log(ccard, 1, "idi_ind: Ch%d: Ind is neither SIG nor NET !\n", chan->No);
}
if (free_buff) dev_kfree_skb(skb);
}
int
idi_handle_ack_ok(eicon_card *ccard, eicon_chan *chan, eicon_RC *ack)
{
ulong flags;
isdn_ctrl cmd;
if (ack->RcId != ((chan->e.ReqCh) ? chan->e.B2Id : chan->e.D3Id)) {
/* I dont know why this happens, just ignoring this RC */
eicon_log(ccard, 16, "idi_ack: Ch%d: RcId %d not equal to last %d\n", chan->No,
ack->RcId, (chan->e.ReqCh) ? chan->e.B2Id : chan->e.D3Id);
return 1;
}
/* Management Interface */
if (chan->No == ccard->nchannels) {
/* Managementinterface: changing state */
if (chan->e.Req == 0x04)
chan->fsm_state = 1;
}
/* Remove an Id */
if (chan->e.Req == REMOVE) {
if (ack->Reference != chan->e.ref) {
eicon_log(ccard, 16, "idi_ack: Ch%d: Rc-Ref %d not equal to stored %d\n", chan->No,
ack->Reference, chan->e.ref);
return 0;
}
save_flags(flags);
cli();
ccard->IdTable[ack->RcId] = NULL;
eicon_log(ccard, 16, "idi_ack: Ch%d: Removed : Id=%x Ch=%d (%s)\n", chan->No,
ack->RcId, ack->RcCh, (chan->e.ReqCh)? "Net":"Sig");
if (!chan->e.ReqCh)
chan->e.D3Id = 0;
else
chan->e.B2Id = 0;
restore_flags(flags);
return 1;
}
/* Signal layer */
if (!chan->e.ReqCh) {
eicon_log(ccard, 16, "idi_ack: Ch%d: RC OK Id=%x Ch=%d (ref:%d)\n", chan->No,
ack->RcId, ack->RcCh, ack->Reference);
} else {
/* Network layer */
switch(chan->e.Req & 0x0f) {
case IDI_N_MDATA:
case IDI_N_DATA:
if ((chan->e.Req & 0x0f) == IDI_N_DATA) {
if (chan->queued) {
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_BSENT;
cmd.arg = chan->No;
cmd.parm.length = chan->waitpq;
ccard->interface.statcallb(&cmd);
}
save_flags(flags);
cli();
chan->waitpq = 0;
restore_flags(flags);
#ifdef CONFIG_ISDN_TTY_FAX
if (chan->l2prot == ISDN_PROTO_L2_FAX) {
if (((chan->queued - chan->waitq) < 1) &&
(chan->fax2.Eop)) {
chan->fax2.Eop = 0;
if (chan->fax) {
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_FAXIND;
cmd.arg = chan->No;
chan->fax->r_code = ISDN_TTY_FAX_SENT;
ccard->interface.statcallb(&cmd);
}
else {
eicon_log(ccard, 1, "idi_ack: Sent with NULL fax struct, ERROR\n");
}
}
}
#endif
}
save_flags(flags);
cli();
chan->queued -= chan->waitq;
if (chan->queued < 0) chan->queued = 0;
restore_flags(flags);
break;
default:
eicon_log(ccard, 16, "idi_ack: Ch%d: RC OK Id=%x Ch=%d (ref:%d)\n", chan->No,
ack->RcId, ack->RcCh, ack->Reference);
}
}
return 1;
}
void
idi_handle_ack(eicon_card *ccard, struct sk_buff *skb)
{
int j;
ulong flags;
eicon_RC *ack = (eicon_RC *)skb->data;
eicon_chan *chan;
isdn_ctrl cmd;
int dCh = -1;
if (!ccard)
return;
save_flags(flags);
cli();
if ((chan = ccard->IdTable[ack->RcId]) != NULL)
dCh = chan->No;
restore_flags(flags);
switch (ack->Rc) {
case OK_FC:
case N_FLOW_CONTROL:
case ASSIGN_RC:
eicon_log(ccard, 1, "idi_ack: Ch%d: unhandled RC 0x%x\n",
dCh, ack->Rc);
break;
case READY_INT:
case TIMER_INT:
/* we do nothing here */
break;
case OK:
if (!chan) {
eicon_log(ccard, 1, "idi_ack: Ch%d: OK on chan without Id\n", dCh);
break;
}
if (!idi_handle_ack_ok(ccard, chan, ack))
chan = NULL;
break;
case ASSIGN_OK:
if (chan) {
eicon_log(ccard, 1, "idi_ack: Ch%d: ASSIGN-OK on chan already assigned (%x,%x)\n",
chan->No, chan->e.D3Id, chan->e.B2Id);
}
save_flags(flags);
cli();
for(j = 0; j < ccard->nchannels + 1; j++) {
if (ccard->bch[j].e.ref == ack->Reference) {
if (!ccard->bch[j].e.ReqCh)
ccard->bch[j].e.D3Id = ack->RcId;
else
ccard->bch[j].e.B2Id = ack->RcId;
ccard->IdTable[ack->RcId] = &ccard->bch[j];
ccard->bch[j].e.busy = 0;
ccard->bch[j].e.ref = 0;
eicon_log(ccard, 16, "idi_ack: Ch%d: Id %x assigned (%s)\n", j,
ack->RcId, (ccard->bch[j].e.ReqCh)? "Net":"Sig");
break;
}
}
restore_flags(flags);
if (j > ccard->nchannels) {
eicon_log(ccard, 24, "idi_ack: Ch??: ref %d not found for Id %d\n",
ack->Reference, ack->RcId);
}
break;
case OUT_OF_RESOURCES:
case UNKNOWN_COMMAND:
case WRONG_COMMAND:
case WRONG_ID:
case WRONG_CH:
case UNKNOWN_IE:
case WRONG_IE:
default:
eicon_log(ccard, 1, "eicon_ack: Ch%d: Not OK !!: Rc=%d Id=%x Ch=%d Req=%d\n",
dCh, ack->Rc, ack->RcId, ack->RcCh, (chan) ? chan->e.Req : -1);
if (!chan) {
eicon_log(ccard, 1, "idi_ack: Ch%d: Not OK !! on chan without Id\n", dCh);
break;
}
if (dCh == ccard->nchannels) { /* Management */
chan->fsm_state = 2;
} else if (dCh >= 0) {
/* any other channel */
/* card reports error: we hangup */
idi_hangup(ccard, chan);
cmd.driver = ccard->myid;
cmd.command = ISDN_STAT_DHUP;
cmd.arg = chan->No;
ccard->interface.statcallb(&cmd);
}
}
save_flags(flags);
cli();
if (chan)
chan->e.busy = 0;
restore_flags(flags);
dev_kfree_skb(skb);
eicon_schedule_tx(ccard);
}
int
idi_send_data(eicon_card *card, eicon_chan *chan, int ack, struct sk_buff *skb, int que)
{
struct sk_buff *xmit_skb;
struct sk_buff *skb2;
eicon_REQ *reqbuf;
eicon_chan_ptr *chan2;
int len, plen = 0, offset = 0;
unsigned long flags;
if ((!card) || (!chan))
return -1;
if (chan->fsm_state != EICON_STATE_ACTIVE) {
eicon_log(card, 1, "idi_snd: Ch%d: send bytes on state %d !\n", chan->No, chan->fsm_state);
return -ENODEV;
}
len = skb->len;
if (len > 2138) /* too much for the shared memory */
return -1;
if (!len)
return 0;
if (chan->queued + len > ((chan->l2prot == ISDN_PROTO_L2_TRANS) ? 4000 : EICON_MAX_QUEUED))
return 0;
eicon_log(card, 128, "idi_snd: Ch%d: %d bytes\n", chan->No, len);
save_flags(flags);
cli();
while(offset < len) {
plen = ((len - offset) > 270) ? 270 : len - offset;
xmit_skb = alloc_skb(plen + sizeof(eicon_REQ), GFP_ATOMIC);
skb2 = alloc_skb(sizeof(eicon_chan_ptr), GFP_ATOMIC);
if ((!xmit_skb) || (!skb2)) {
restore_flags(flags);
eicon_log(card, 1, "idi_err: Ch%d: alloc_skb failed in send_data()\n", chan->No);
if (xmit_skb)
dev_kfree_skb(skb);
if (skb2)
dev_kfree_skb(skb2);
return -ENOMEM;
}
chan2 = (eicon_chan_ptr *)skb_put(skb2, sizeof(eicon_chan_ptr));
chan2->ptr = chan;
reqbuf = (eicon_REQ *)skb_put(xmit_skb, plen + sizeof(eicon_REQ));
if (((len - offset) > 270) &&
(chan->l2prot != ISDN_PROTO_L2_TRANS)) {
reqbuf->Req = IDI_N_MDATA;
} else {
reqbuf->Req = IDI_N_DATA;
if (ack) reqbuf->Req |= N_D_BIT;
}
reqbuf->ReqCh = 0;
reqbuf->ReqId = 1;
memcpy(&reqbuf->XBuffer.P, skb->data + offset, plen);
reqbuf->XBuffer.length = plen;
reqbuf->Reference = 1; /* Net Entity */
skb_queue_tail(&chan->e.X, xmit_skb);
skb_queue_tail(&card->sndq, skb2);
offset += plen;
}
if (que)
chan->queued += len;
restore_flags(flags);
eicon_schedule_tx(card);
dev_kfree_skb(skb);
return len;
}
int
eicon_idi_manage_assign(eicon_card *card)
{
struct sk_buff *skb;
struct sk_buff *skb2;
eicon_REQ *reqbuf;
eicon_chan *chan;
eicon_chan_ptr *chan2;
chan = &(card->bch[card->nchannels]);
skb = alloc_skb(270 + sizeof(eicon_REQ), GFP_ATOMIC);
skb2 = alloc_skb(sizeof(eicon_chan_ptr), GFP_ATOMIC);
if ((!skb) || (!skb2)) {
eicon_log(card, 1, "idi_err: alloc_skb failed in manage_assign()\n");
if (skb)
dev_kfree_skb(skb);
if (skb2)
dev_kfree_skb(skb2);
return -ENOMEM;
}
chan2 = (eicon_chan_ptr *)skb_put(skb2, sizeof(eicon_chan_ptr));
chan2->ptr = chan;
reqbuf = (eicon_REQ *)skb_put(skb, 270 + sizeof(eicon_REQ));
reqbuf->XBuffer.P[0] = 0;
reqbuf->Req = ASSIGN;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 0xe0;
reqbuf->XBuffer.length = 1;
reqbuf->Reference = 2; /* Man Entity */
skb_queue_tail(&chan->e.X, skb);
skb_queue_tail(&card->sndq, skb2);
eicon_schedule_tx(card);
return(0);
}
int
eicon_idi_manage_remove(eicon_card *card)
{
struct sk_buff *skb;
struct sk_buff *skb2;
eicon_REQ *reqbuf;
eicon_chan *chan;
eicon_chan_ptr *chan2;
chan = &(card->bch[card->nchannels]);
skb = alloc_skb(270 + sizeof(eicon_REQ), GFP_ATOMIC);
skb2 = alloc_skb(sizeof(eicon_chan_ptr), GFP_ATOMIC);
if ((!skb) || (!skb2)) {
eicon_log(card, 1, "idi_err: alloc_skb failed in manage_remove()\n");
if (skb)
dev_kfree_skb(skb);
if (skb2)
dev_kfree_skb(skb2);
return -ENOMEM;
}
chan2 = (eicon_chan_ptr *)skb_put(skb2, sizeof(eicon_chan_ptr));
chan2->ptr = chan;
reqbuf = (eicon_REQ *)skb_put(skb, 270 + sizeof(eicon_REQ));
reqbuf->Req = REMOVE;
reqbuf->ReqCh = 0;
reqbuf->ReqId = 1;
reqbuf->XBuffer.length = 0;
reqbuf->Reference = 2; /* Man Entity */
skb_queue_tail(&chan->e.X, skb);
skb_queue_tail(&card->sndq, skb2);
eicon_schedule_tx(card);
return(0);
}
int
eicon_idi_manage(eicon_card *card, eicon_manifbuf *mb)
{
int l = 0;
int ret = 0;
int timeout;
int i;
struct sk_buff *skb;
struct sk_buff *skb2;
eicon_REQ *reqbuf;
eicon_chan *chan;
eicon_chan_ptr *chan2;
chan = &(card->bch[card->nchannels]);
if (chan->e.D3Id)
return -EBUSY;
chan->e.D3Id = 1;
while((skb2 = skb_dequeue(&chan->e.X)))
dev_kfree_skb(skb2);
chan->e.busy = 0;
if ((ret = eicon_idi_manage_assign(card))) {
chan->e.D3Id = 0;
return(ret);
}
timeout = jiffies + 50;
while (timeout > jiffies) {
if (chan->e.B2Id) break;
SLEEP(10);
}
if (!chan->e.B2Id) {
chan->e.D3Id = 0;
return -EIO;
}
chan->fsm_state = 0;
if (!(manbuf = kmalloc(sizeof(eicon_manifbuf), GFP_KERNEL))) {
eicon_log(card, 1, "idi_err: alloc_manifbuf failed\n");
chan->e.D3Id = 0;
return -ENOMEM;
}
if (copy_from_user(manbuf, mb, sizeof(eicon_manifbuf))) {
kfree(manbuf);
chan->e.D3Id = 0;
return -EFAULT;
}
skb = alloc_skb(270 + sizeof(eicon_REQ), GFP_ATOMIC);
skb2 = alloc_skb(sizeof(eicon_chan_ptr), GFP_ATOMIC);
if ((!skb) || (!skb2)) {
eicon_log(card, 1, "idi_err_manif: alloc_skb failed in manage()\n");
if (skb)
dev_kfree_skb(skb);
if (skb2)
dev_kfree_skb(skb2);
kfree(manbuf);
chan->e.D3Id = 0;
return -ENOMEM;
}
chan2 = (eicon_chan_ptr *)skb_put(skb2, sizeof(eicon_chan_ptr));
chan2->ptr = chan;
reqbuf = (eicon_REQ *)skb_put(skb, 270 + sizeof(eicon_REQ));
reqbuf->XBuffer.P[l++] = ESC;
reqbuf->XBuffer.P[l++] = 6;
reqbuf->XBuffer.P[l++] = 0x80;
for (i = 0; i < manbuf->length[0]; i++)
reqbuf->XBuffer.P[l++] = manbuf->data[i];
reqbuf->XBuffer.P[1] = manbuf->length[0] + 1;
reqbuf->XBuffer.P[l++] = 0;
reqbuf->Req = (manbuf->count) ? manbuf->count : 0x02; /* Request */
reqbuf->ReqCh = 0;
reqbuf->ReqId = 1;
reqbuf->XBuffer.length = l;
reqbuf->Reference = 2; /* Man Entity */
skb_queue_tail(&chan->e.X, skb);
skb_queue_tail(&card->sndq, skb2);
manbuf->count = 0;
manbuf->pos = 0;
eicon_schedule_tx(card);
timeout = jiffies + 50;
while (timeout > jiffies) {
if (chan->fsm_state) break;
SLEEP(10);
}
if ((!chan->fsm_state) || (chan->fsm_state == 2)) {
eicon_idi_manage_remove(card);
kfree(manbuf);
chan->e.D3Id = 0;
return -EIO;
}
if ((ret = eicon_idi_manage_remove(card))) {
kfree(manbuf);
chan->e.D3Id = 0;
return(ret);
}
if (copy_to_user(mb, manbuf, sizeof(eicon_manifbuf))) {
kfree(manbuf);
chan->e.D3Id = 0;
return -EFAULT;
}
kfree(manbuf);
chan->e.D3Id = 0;
return(0);
}
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