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linux-next/drivers/isdn/i4l/isdn_ttyfax.c
Julia Lawall ae91d60ba8 drivers/isdn: correct use of ! and & 
In commit e6bafba5b4 ("wmi: (!x & y)
strikes again"), a bug was fixed that involved converting !x & y to !(x
& y).  The code below shows the same pattern, and thus should perhaps be
fixed in the same way.

This is not tested and clearly changes the semantics, so it is only
something to consider.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@ expression E1,E2; @@
(
  !E1 & !E2
|
- !E1 & E2
+ !(E1 & E2)
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04 16:35:16 -08:00

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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 (mac@melware.de)
* Copyright 1999 by Ralf Spachmann (mel@melware.de)
* 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;
case '=':
p[0]++;
if (*p[0] == '?') {
p[0]++;
sprintf(rs, "\r\n0-5");
isdn_tty_at_cout(rs, info);
} else {
par = isdn_getnum(p);
if ((par < 0) || (par > 5))
PARSE_ERROR1;
f->minsp = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FMINSP=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* PHCTO=value - DTE phase C timeout */
if (!strncmp(p[0], "PHCTO", 5)) {
p[0] += 5;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->phcto);
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->phcto = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FPHCTO=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* REL=n - Phase C received EOL alignment */
if (!strncmp(p[0], "REL", 3)) {
p[0] += 3;
switch (*p[0]) {
case '?':
p[0]++;
sprintf(rs, "\r\n%d", f->rel);
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->rel = par;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FREL=%d\n", par);
#endif
}
break;
default:
PARSE_ERROR1;
}
return 0;
}
/* REV? - DCE Revision */
if (!strncmp(p[0], "REV?", 4)) {
p[0] += 4;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: FREV?\n");
#endif
strcpy(rss, isdn_tty_fax_revision);
sprintf(rs, "\r\nRev: %s", isdn_getrev(rss));
isdn_tty_at_cout(rs, info);
return 0;
}
/* Phase C Transmit Data Block Size */
if (!strncmp(p[0], "TBC=", 4)) { /* dummy, not used */
p[0] += 4;
#ifdef ISDN_TTY_FAX_STAT_DEBUG
printk(KERN_DEBUG "isdn_tty: Fax FTBC=%c\n", *p[0]);
#endif
switch (*p[0]) {
case '0':
p[0]++;
break;
default:
PARSE_ERROR1;
}
return 0;
}
printk(KERN_DEBUG "isdn_tty: unknown token=>AT+F%s<\n", p[0]);
PARSE_ERROR1;
}
int
isdn_tty_cmd_PLUSF_FAX(char **p, modem_info * info)
{
if (TTY_IS_FCLASS2(info))
return (isdn_tty_cmd_FCLASS2(p, info));
else if (TTY_IS_FCLASS1(info))
return (isdn_tty_cmd_FCLASS1(p, info));
PARSE_ERROR1;
}
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