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wcte12xp: Look for multiple loopup codes before setting looping up the framer.

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This brings the wcte12xp driver in line with the wct4xxp driver. It also
eliminates the chance that the local side will errouneously go into loopup when
switched from E1 to T1 mode via the spantype sysfs attribute.

Internal-Issue-ID: DAHDI-1038
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
This commit is contained in:
Shaun Ruffell 2013-05-09 15:10:11 -05:00 committed by Russ Meyerriecks
parent db040e5cd7
commit 9a7db0943b
1 changed files with 9 additions and 4 deletions
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13
drivers/dahdi/wcte12xp/base.c
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@ -2206,27 +2206,32 @@ static void t1_check_alarms(struct t1 *wc)
/* Detect loopup code if we're not sending one */
if ((!wc->span.mainttimer) && (d & 0x08)) {
/* Loop-up code detected */
if ((wc->span.maintstat != DAHDI_MAINT_REMOTELOOP)) {
if ((++wc->loopupcnt > 80) &&
(wc->span.maintstat != DAHDI_MAINT_REMOTELOOP)) {
t1_notice(wc, "Loopup detected,"\
" enabling remote loop\n");
t1_setreg(wc, 0x36, 0x08); /* LIM0: Disable any local loop */
t1_setreg(wc, 0x37, 0xf6); /* LIM1: Enable remote loop */
wc->span.maintstat = DAHDI_MAINT_REMOTELOOP;
}
} else
} else {
wc->loopupcnt = 0;
}
/* Same for loopdown code */
if ((!wc->span.mainttimer) && (d & 0x10)) {
/* Loop-down code detected */
if ((wc->span.maintstat == DAHDI_MAINT_REMOTELOOP)) {
if ((++wc->loopdowncnt > 80) &&
(wc->span.maintstat == DAHDI_MAINT_REMOTELOOP)) {
t1_notice(wc, "Loopdown detected,"\
" disabling remote loop\n");
t1_setreg(wc, 0x36, 0x08); /* LIM0: Disable any local loop */
t1_setreg(wc, 0x37, 0xf0); /* LIM1: Disable remote loop */
wc->span.maintstat = DAHDI_MAINT_NONE;
}
} else
} else {
wc->loopdowncnt = 0;
}
}
if (wc->span.lineconfig & DAHDI_CONFIG_NOTOPEN) {