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isdn_ttyfax.c
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isdn_ttyfax.c
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/* $Id: isdn_ttyfax.c,v 1.1.2.2 2004/01/12 22:37:19 keil Exp $
*
* Linux ISDN subsystem, tty_fax AT-command emulator (linklevel).
*
* Copyright 1999 by Armin Schindler ([email protected])
* Copyright 1999 by Ralf Spachmann ([email protected])
* Copyright 1999 by Cytronics & Melware
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
#undef ISDN_TTY_FAX_STAT_DEBUG
#undef ISDN_TTY_FAX_CMD_DEBUG
#include <linux/isdn.h>
#include "isdn_common.h"
#include "isdn_tty.h"
#include "isdn_ttyfax.h"
static char *isdn_tty_fax_revision = "$Revision: 1.1.2.2 $";
#define PARSE_ERROR1 { isdn_tty_fax_modem_result(1, info); return 1; }
static char *
isdn_getrev(const char *revision)
{
char *rev;
char *p;
if ((p = strchr(revision, ':'))) {
rev = p + 2;
p = strchr(rev, '$');
*--p = 0;
} else
rev = "???";
return rev;
}
/*
* Fax Class 2 Modem results
*
*/
static void
isdn_tty_fax_modem_result(int code, modem_info * info)
{
atemu *m = &info->emu;
T30_s *f = info->fax;
char rs[50];
char rss[50];
char *rp;
int i;
static char *msg[] =
{"OK", "ERROR", "+FCON", "+FCSI:", "+FDIS:",
"+FHNG:", "+FDCS:", "CONNECT", "+FTSI:",
"+FCFR", "+FPTS:", "+FET:"};
isdn_tty_at_cout("\r\n", info);
isdn_tty_at_cout(msg[code], info);
#ifdef ISDN_TTY_FAX_CMD_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax send %s on ttyI%d\n",
msg[code], info->line);
#endif
switch (code) {
case 0: /* OK */
break;
case 1: /* ERROR */
break;
case 2: /* +FCON */
/* Append CPN, if enabled */
if ((m->mdmreg[REG_CPNFCON] & BIT_CPNFCON) &&
(!(dev->usage[info->isdn_channel] & ISDN_USAGE_OUTGOING))) {
sprintf(rs, "/%s", m->cpn);
isdn_tty_at_cout(rs, info);
}
info->online = 1;
f->fet = 0;
if (f->phase == ISDN_FAX_PHASE_A)
f->phase = ISDN_FAX_PHASE_B;
break;
case 3: /* +FCSI */
case 8: /* +FTSI */
sprintf(rs, "\"%s\"", f->r_id);
isdn_tty_at_cout(rs, info);
break;
case 4: /* +FDIS */
rs[0] = 0;
rp = &f->r_resolution;
for (i = 0; i < 8; i++) {
sprintf(rss, "%c%s", rp[i] + 48,
(i < 7) ? "," : "");
strcat(rs, rss);
}
isdn_tty_at_cout(rs, info);
#ifdef ISDN_TTY_FAX_CMD_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax DIS=%s on ttyI%d\n",
rs, info->line);
#endif
break;
case 5: /* +FHNG */
sprintf(rs, "%d", f->code);
isdn_tty_at_cout(rs, info);
info->faxonline = 0;
break;
case 6: /* +FDCS */
rs[0] = 0;
rp = &f->r_resolution;
for (i = 0; i < 8; i++) {
sprintf(rss, "%c%s", rp[i] + 48,
(i < 7) ? "," : "");
strcat(rs, rss);
}
isdn_tty_at_cout(rs, info);
#ifdef ISDN_TTY_FAX_CMD_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax DCS=%s on ttyI%d\n",
rs, info->line);
#endif
break;
case 7: /* CONNECT */
info->faxonline |= 2;
break;
case 9: /* FCFR */
break;
case 10: /* FPTS */
isdn_tty_at_cout("1", info);
break;
case 11: /* FET */
sprintf(rs, "%d", f->fet);
isdn_tty_at_cout(rs, info);
break;
}
isdn_tty_at_cout("\r\n", info);
switch (code) {
case 7: /* CONNECT */
info->online = 2;
if (info->faxonline & 1) {
sprintf(rs, "%c", XON);
isdn_tty_at_cout(rs, info);
}
break;
}
}
static int
isdn_tty_fax_command1(modem_info * info, isdn_ctrl * c)
{
static char *msg[] =
{"OK", "CONNECT", "NO CARRIER", "ERROR", "FCERROR"};
#ifdef ISDN_TTY_FAX_CMD_DEBUG
printk(KERN_DEBUG "isdn_tty: FCLASS1 cmd(%d)\n", c->parm.aux.cmd);
#endif
if (c->parm.aux.cmd < ISDN_FAX_CLASS1_QUERY) {
if (info->online)
info->online = 1;
isdn_tty_at_cout("\r\n", info);
isdn_tty_at_cout(msg[c->parm.aux.cmd], info);
isdn_tty_at_cout("\r\n", info);
}
switch (c->parm.aux.cmd) {
case ISDN_FAX_CLASS1_CONNECT:
info->online = 2;
break;
case ISDN_FAX_CLASS1_OK:
case ISDN_FAX_CLASS1_FCERROR:
case ISDN_FAX_CLASS1_ERROR:
case ISDN_FAX_CLASS1_NOCARR:
break;
case ISDN_FAX_CLASS1_QUERY:
isdn_tty_at_cout("\r\n", info);
if (!c->parm.aux.para[0]) {
isdn_tty_at_cout(msg[ISDN_FAX_CLASS1_ERROR], info);
isdn_tty_at_cout("\r\n", info);
} else {
isdn_tty_at_cout(c->parm.aux.para, info);
isdn_tty_at_cout("\r\nOK\r\n", info);
}
break;
}
return (0);
}
int
isdn_tty_fax_command(modem_info * info, isdn_ctrl * c)
{
T30_s *f = info->fax;
char rs[10];
if (TTY_IS_FCLASS1(info))
return (isdn_tty_fax_command1(info, c));
#ifdef ISDN_TTY_FAX_CMD_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax cmd %d on ttyI%d\n",
f->r_code, info->line);
#endif
switch (f->r_code) {
case ISDN_TTY_FAX_FCON:
info->faxonline = 1;
isdn_tty_fax_modem_result(2, info); /* +FCON */
return (0);
case ISDN_TTY_FAX_FCON_I:
info->faxonline = 16;
isdn_tty_fax_modem_result(2, info); /* +FCON */
return (0);
case ISDN_TTY_FAX_RID:
if (info->faxonline & 1)
isdn_tty_fax_modem_result(3, info); /* +FCSI */
if (info->faxonline & 16)
isdn_tty_fax_modem_result(8, info); /* +FTSI */
return (0);
case ISDN_TTY_FAX_DIS:
isdn_tty_fax_modem_result(4, info); /* +FDIS */
return (0);
case ISDN_TTY_FAX_HNG:
if (f->phase == ISDN_FAX_PHASE_C) {
if (f->direction == ISDN_TTY_FAX_CONN_IN) {
sprintf(rs, "%c%c", DLE, ETX);
isdn_tty_at_cout(rs, info);
} else {
sprintf(rs, "%c", 0x18);
isdn_tty_at_cout(rs, info);
}
info->faxonline &= ~2; /* leave data mode */
info->online = 1;
}
f->phase = ISDN_FAX_PHASE_E;
isdn_tty_fax_modem_result(5, info); /* +FHNG */
isdn_tty_fax_modem_result(0, info); /* OK */
return (0);
case ISDN_TTY_FAX_DCS:
isdn_tty_fax_modem_result(6, info); /* +FDCS */
isdn_tty_fax_modem_result(7, info); /* CONNECT */
f->phase = ISDN_FAX_PHASE_C;
return (0);
case ISDN_TTY_FAX_TRAIN_OK:
isdn_tty_fax_modem_result(6, info); /* +FDCS */
isdn_tty_fax_modem_result(0, info); /* OK */
return (0);
case ISDN_TTY_FAX_SENT:
isdn_tty_fax_modem_result(0, info); /* OK */
return (0);
case ISDN_TTY_FAX_CFR:
isdn_tty_fax_modem_result(9, info); /* +FCFR */
return (0);
case ISDN_TTY_FAX_ET:
sprintf(rs, "%c%c", DLE, ETX);
isdn_tty_at_cout(rs, info);
isdn_tty_fax_modem_result(10, info); /* +FPTS */
isdn_tty_fax_modem_result(11, info); /* +FET */
isdn_tty_fax_modem_result(0, info); /* OK */
info->faxonline &= ~2; /* leave data mode */
info->online = 1;
f->phase = ISDN_FAX_PHASE_D;
return (0);
case ISDN_TTY_FAX_PTS:
isdn_tty_fax_modem_result(10, info); /* +FPTS */
if (f->direction == ISDN_TTY_FAX_CONN_OUT) {
if (f->fet == 1)
f->phase = ISDN_FAX_PHASE_B;
if (f->fet == 0)
isdn_tty_fax_modem_result(0, info); /* OK */
}
return (0);
case ISDN_TTY_FAX_EOP:
info->faxonline &= ~2; /* leave data mode */
info->online = 1;
f->phase = ISDN_FAX_PHASE_D;
return (0);
}
return (-1);
}
void
isdn_tty_fax_bitorder(modem_info * info, struct sk_buff *skb)
{
__u8 LeftMask;
__u8 RightMask;
__u8 fBit;
__u8 Data;
int i;
if (!info->fax->bor) {
for (i = 0; i < skb->len; i++) {
Data = skb->data[i];
for (
LeftMask = 0x80, RightMask = 0x01;
LeftMask > RightMask;
LeftMask >>= 1, RightMask <<= 1
) {
fBit = (Data & LeftMask);
if (Data & RightMask)
Data |= LeftMask;
else
Data &= ~LeftMask;
if (fBit)
Data |= RightMask;
else
Data &= ~RightMask;
}
skb->data[i] = Data;
}
}
}
/*
* Parse AT+F.. FAX class 1 commands
*/
static int
isdn_tty_cmd_FCLASS1(char **p, modem_info * info)
{
static char *cmd[] =
{"AE", "TS", "RS", "TM", "RM", "TH", "RH"};
isdn_ctrl c;
int par, i;
u_long flags;
for (c.parm.aux.cmd = 0; c.parm.aux.cmd < 7; c.parm.aux.cmd++)
if (!strncmp(p[0], cmd[c.parm.aux.cmd], 2))
break;
#ifdef ISDN_TTY_FAX_CMD_DEBUG
printk(KERN_DEBUG "isdn_tty_cmd_FCLASS1 (%s,%d)\n", p[0], c.parm.aux.cmd);
#endif
if (c.parm.aux.cmd == 7)
PARSE_ERROR1;
p[0] += 2;
switch (*p[0]) {
case '?':
p[0]++;
c.parm.aux.subcmd = AT_QUERY;
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
c.parm.aux.subcmd = AT_EQ_QUERY;
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 255))
PARSE_ERROR1;
c.parm.aux.subcmd = AT_EQ_VALUE;
c.parm.aux.para[0] = par;
}
break;
case 0:
c.parm.aux.subcmd = AT_COMMAND;
break;
default:
PARSE_ERROR1;
}
c.command = ISDN_CMD_FAXCMD;
#ifdef ISDN_TTY_FAX_CMD_DEBUG
printk(KERN_DEBUG "isdn_tty_cmd_FCLASS1 %d/%d/%d)\n",
c.parm.aux.cmd, c.parm.aux.subcmd, c.parm.aux.para[0]);
#endif
if (info->isdn_driver < 0) {
if ((c.parm.aux.subcmd == AT_EQ_VALUE) ||
(c.parm.aux.subcmd == AT_COMMAND)) {
PARSE_ERROR1;
}
spin_lock_irqsave(&dev->lock, flags);
/* get a temporary connection to the first free fax driver */
i = isdn_get_free_channel(ISDN_USAGE_FAX, ISDN_PROTO_L2_FAX,
ISDN_PROTO_L3_FCLASS1, -1, -1, "00");
if (i < 0) {
spin_unlock_irqrestore(&dev->lock, flags);
PARSE_ERROR1;
}
info->isdn_driver = dev->drvmap[i];
info->isdn_channel = dev->chanmap[i];
info->drv_index = i;
dev->m_idx[i] = info->line;
spin_unlock_irqrestore(&dev->lock, flags);
c.driver = info->isdn_driver;
c.arg = info->isdn_channel;
isdn_command(&c);
spin_lock_irqsave(&dev->lock, flags);
isdn_free_channel(info->isdn_driver, info->isdn_channel,
ISDN_USAGE_FAX);
info->isdn_driver = -1;
info->isdn_channel = -1;
if (info->drv_index >= 0) {
dev->m_idx[info->drv_index] = -1;
info->drv_index = -1;
}
spin_unlock_irqrestore(&dev->lock, flags);
} else {
c.driver = info->isdn_driver;
c.arg = info->isdn_channel;
isdn_command(&c);
}
return 1;
}
/*
* Parse AT+F.. FAX class 2 commands
*/
static int
isdn_tty_cmd_FCLASS2(char **p, modem_info * info)
{
atemu *m = &info->emu;
T30_s *f = info->fax;
isdn_ctrl cmd;
int par;
char rs[50];
char rss[50];
int maxdccval[] =
{1, 5, 2, 2, 3, 2, 0, 7};
/* FAA still unchanged */
if (!strncmp(p[0], "AA", 2)) { /* TODO */
p[0] += 2;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", 0);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
par = isdn_getnum(p);
if ((par < 0) || (par > 255))
PARSE_ERROR1;
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* BADLIN=value - dummy 0=disable errorchk disabled, 1-255 nr. of lines for making page bad */
if (!strncmp(p[0], "BADLIN", 6)) {
p[0] += 6;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->badlin);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0-255");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 255))
PARSE_ERROR1;
f->badlin = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FBADLIN=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* BADMUL=value - dummy 0=disable errorchk disabled (treshold multiplier) */
if (!strncmp(p[0], "BADMUL", 6)) {
p[0] += 6;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->badmul);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0-255");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 255))
PARSE_ERROR1;
f->badmul = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FBADMUL=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* BOR=n - Phase C bit order, 0=direct, 1=reverse */
if (!strncmp(p[0], "BOR", 3)) {
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->bor);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0,1");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 1))
PARSE_ERROR1;
f->bor = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FBOR=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* NBC=n - No Best Capabilities */
if (!strncmp(p[0], "NBC", 3)) {
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->nbc);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0,1");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 1))
PARSE_ERROR1;
f->nbc = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FNBC=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* BUF? - Readonly buffersize readout */
if (!strncmp(p[0], "BUF?", 4)) {
p[0] += 4;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FBUF? (%d) \n", (16 * m->mdmreg[REG_PSIZE]));
#endif
p[0]++;
sprintf(rs, "\r\n %d ", (16 * m->mdmreg[REG_PSIZE]));
isdn_tty_at_cout(rs, info);
return 0;
}
/* CIG=string - local fax station id string for polling rx */
if (!strncmp(p[0], "CIG", 3)) {
int i, r;
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n\"%s\"", f->pollid);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n\"STRING\"");
isdn_tty_at_cout(rs, info);
} else {
if (*p[0] == '"')
p[0]++;
for (i = 0; (*p[0]) && i < (FAXIDLEN - 1) && (*p[0] != '"'); i++) {
f->pollid[i] = *p[0]++;
}
if (*p[0] == '"')
p[0]++;
for (r = i; r < FAXIDLEN; r++) {
f->pollid[r] = 32;
}
f->pollid[FAXIDLEN - 1] = 0;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax local poll ID rx \"%s\"\n", f->pollid);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* CQ=n - copy qlty chk, 0= no chk, 1=only 1D chk, 2=1D+2D chk */
if (!strncmp(p[0], "CQ", 2)) {
p[0] += 2;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->cq);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0,1,2");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 2))
PARSE_ERROR1;
f->cq = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FCQ=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* CR=n - can receive? 0= no data rx or poll remote dev, 1=do receive data or poll remote dev */
if (!strncmp(p[0], "CR", 2)) {
p[0] += 2;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->cr); /* read actual value from struct and print */
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0,1"); /* display online help */
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 1))
PARSE_ERROR1;
f->cr = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FCR=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* CTCRTY=value - ECM retry count */
if (!strncmp(p[0], "CTCRTY", 6)) {
p[0] += 6;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->ctcrty);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0-255");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 255))
PARSE_ERROR1;
f->ctcrty = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FCTCRTY=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* DCC=vr,br,wd,ln,df,ec,bf,st - DCE capabilities parms */
if (!strncmp(p[0], "DCC", 3)) {
char *rp = &f->resolution;
int i;
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
strcpy(rs, "\r\n");
for (i = 0; i < 8; i++) {
sprintf(rss, "%c%s", rp[i] + 48,
(i < 7) ? "," : "");
strcat(rs, rss);
}
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
isdn_tty_at_cout("\r\n(0,1),(0-5),(0-2),(0-2),(0-3),(0-2),(0),(0-7)", info);
p[0]++;
} else {
for (i = 0; (((*p[0] >= '0') && (*p[0] <= '9')) || (*p[0] == ',')) && (i < 8); i++) {
if (*p[0] != ',') {
if ((*p[0] - 48) > maxdccval[i]) {
PARSE_ERROR1;
}
rp[i] = *p[0] - 48;
p[0]++;
if (*p[0] == ',')
p[0]++;
} else
p[0]++;
}
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FDCC capabilities DCE=%d,%d,%d,%d,%d,%d,%d,%d\n",
rp[0], rp[1], rp[2], rp[3], rp[4], rp[5], rp[6], rp[7]);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* DIS=vr,br,wd,ln,df,ec,bf,st - current session parms */
if (!strncmp(p[0], "DIS", 3)) {
char *rp = &f->resolution;
int i;
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
strcpy(rs, "\r\n");
for (i = 0; i < 8; i++) {
sprintf(rss, "%c%s", rp[i] + 48,
(i < 7) ? "," : "");
strcat(rs, rss);
}
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
isdn_tty_at_cout("\r\n(0,1),(0-5),(0-2),(0-2),(0-3),(0-2),(0),(0-7)", info);
p[0]++;
} else {
for (i = 0; (((*p[0] >= '0') && (*p[0] <= '9')) || (*p[0] == ',')) && (i < 8); i++) {
if (*p[0] != ',') {
if ((*p[0] - 48) > maxdccval[i]) {
PARSE_ERROR1;
}
rp[i] = *p[0] - 48;
p[0]++;
if (*p[0] == ',')
p[0]++;
} else
p[0]++;
}
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FDIS session parms=%d,%d,%d,%d,%d,%d,%d,%d\n",
rp[0], rp[1], rp[2], rp[3], rp[4], rp[5], rp[6], rp[7]);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* DR - Receive Phase C data command, initiates document reception */
if (!strncmp(p[0], "DR", 2)) {
p[0] += 2;
if ((info->faxonline & 16) && /* incoming connection */
((f->phase == ISDN_FAX_PHASE_B) || (f->phase == ISDN_FAX_PHASE_D))) {
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FDR\n");
#endif
f->code = ISDN_TTY_FAX_DR;
cmd.driver = info->isdn_driver;
cmd.arg = info->isdn_channel;
cmd.command = ISDN_CMD_FAXCMD;
isdn_command(&cmd);
if (f->phase == ISDN_FAX_PHASE_B) {
f->phase = ISDN_FAX_PHASE_C;
} else if (f->phase == ISDN_FAX_PHASE_D) {
switch (f->fet) {
case 0: /* next page will be received */
f->phase = ISDN_FAX_PHASE_C;
isdn_tty_fax_modem_result(7, info); /* CONNECT */
break;
case 1: /* next doc will be received */
f->phase = ISDN_FAX_PHASE_B;
break;
case 2: /* fax session is terminating */
f->phase = ISDN_FAX_PHASE_E;
break;
default:
PARSE_ERROR1;
}
}
} else {
PARSE_ERROR1;
}
return 1;
}
/* DT=df,vr,wd,ln - TX phase C data command (release DCE to proceed with negotiation) */
if (!strncmp(p[0], "DT", 2)) {
int i, val[] =
{4, 0, 2, 3};
char *rp = &f->resolution;
p[0] += 2;
if (!info->faxonline & 1) /* not outgoing connection */
PARSE_ERROR1;
for (i = 0; (((*p[0] >= '0') && (*p[0] <= '9')) || (*p[0] == ',')) && (i < 4); i++) {
if (*p[0] != ',') {
if ((*p[0] - 48) > maxdccval[val[i]]) {
PARSE_ERROR1;
}
rp[val[i]] = *p[0] - 48;
p[0]++;
if (*p[0] == ',')
p[0]++;
} else
p[0]++;
}
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FDT tx data command parms=%d,%d,%d,%d\n",
rp[4], rp[0], rp[2], rp[3]);
#endif
if ((f->phase == ISDN_FAX_PHASE_B) || (f->phase == ISDN_FAX_PHASE_D)) {
f->code = ISDN_TTY_FAX_DT;
cmd.driver = info->isdn_driver;
cmd.arg = info->isdn_channel;
cmd.command = ISDN_CMD_FAXCMD;
isdn_command(&cmd);
if (f->phase == ISDN_FAX_PHASE_D) {
f->phase = ISDN_FAX_PHASE_C;
isdn_tty_fax_modem_result(7, info); /* CONNECT */
}
} else {
PARSE_ERROR1;
}
return 1;
}
/* ECM=n - Error mode control 0=disabled, 2=enabled, handled by DCE alone incl. buff of partial pages */
if (!strncmp(p[0], "ECM", 3)) {
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->ecm);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0,2");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par != 0) && (par != 2))
PARSE_ERROR1;
f->ecm = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FECM=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* ET=n - End of page or document */
if (!strncmp(p[0], "ET=", 3)) {
p[0] += 3;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0-2");
isdn_tty_at_cout(rs, info);
} else {
if ((f->phase != ISDN_FAX_PHASE_D) || (!info->faxonline & 1))
PARSE_ERROR1;
par = isdn_getnum(p);
if ((par < 0) || (par > 2))
PARSE_ERROR1;
f->fet = par;
f->code = ISDN_TTY_FAX_ET;
cmd.driver = info->isdn_driver;
cmd.arg = info->isdn_channel;
cmd.command = ISDN_CMD_FAXCMD;
isdn_command(&cmd);
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FET=%d\n", par);
#endif
return 1;
}
return 0;
}
/* K - terminate */
if (!strncmp(p[0], "K", 1)) {
p[0] += 1;
if ((f->phase == ISDN_FAX_PHASE_IDLE) || (f->phase == ISDN_FAX_PHASE_E))
PARSE_ERROR1;
isdn_tty_modem_hup(info, 1);
return 1;
}
/* LID=string - local fax ID */
if (!strncmp(p[0], "LID", 3)) {
int i, r;
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n\"%s\"", f->id);
isdn_tty_at_cout(rs, info);
break;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n\"STRING\"");
isdn_tty_at_cout(rs, info);
} else {
if (*p[0] == '"')
p[0]++;
for (i = 0; (*p[0]) && i < (FAXIDLEN - 1) && (*p[0] != '"'); i++) {
f->id[i] = *p[0]++;
}
if (*p[0] == '"')
p[0]++;
for (r = i; r < FAXIDLEN; r++) {
f->id[r] = 32;
}
f->id[FAXIDLEN - 1] = 0;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax local ID \"%s\"\n", f->id);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* MDL? - DCE Model */
if (!strncmp(p[0], "MDL?", 4)) {
p[0] += 4;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: FMDL?\n");
#endif
isdn_tty_at_cout("\r\nisdn4linux", info);
return 0;
}
/* MFR? - DCE Manufacturer */
if (!strncmp(p[0], "MFR?", 4)) {
p[0] += 4;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: FMFR?\n");
#endif
isdn_tty_at_cout("\r\nisdn4linux", info);
return 0;
}
/* MINSP=n - Minimum Speed for Phase C */
if (!strncmp(p[0], "MINSP", 5)) {
p[0] += 5;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->minsp);
isdn_tty_at_cout(rs, info);
break;