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f6511b1040
dahdi-linux/drivers/dahdi
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Shaun Ruffell f6511b1040 wctdm24xxp: Only two polarity reversals are needed to validate RING on FXO ports. 
This fixes a regression introduced in commit r10186 "wctdm24xxp: Use time
interval for debouncing FXO ring detect." [1] which was first released in
DAHDI-Linux 2.6.0. This only affects users with analog trunks whose providers do
not present 4 polarity reversals on the ring signals. The reporter of this issue
is based in South Africa.

[1] http://svnview.digium.com/svn/dahdi?view=revision&revision=10168

In prior versions, the ring detector did not check for polarity reversals, only
the presence of ringing voltage unless fwringdetect or neonmwi_monitor mode was
set, and even when one of those modes were set, the driver only needed two
reversals to validate a ring. This commit allows the driver to always stay in
fwringdetect mode but restores the requirement for only two reversals.

Also included in this commit is a change to ensure that ringing is not reported
when debouncing lost battery which can happen when voltage is swinging through
0.

Reported-and-Tested-by: Jaco Kroon <jaco@uls.co.za>
Internal-Issue-ID: DAHLIN-298
Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10719 a0bf4364-ded3-4de4-8d8a-66a801d63aff
(cherry picked from commit 84e70cdac5)
2013-01-25 13:09:32 -06:00
..
datamods wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
firmware wctdm24xxp, wcte12xp: Allow VPMOCT032 firmware to be compiled into driver. 2012-04-02 14:05:17 +00:00
hpec dahdi_echocan_hpec: Update the HPEC wrapper to use the new name interface 2010-12-09 21:52:34 +00:00
oct612x wct4xxp: Add support for TE820 and VPMOCT256. 2011-11-01 15:27:21 +00:00
voicebus wcte12xp, wctdm24xxp, wct4xxp: Print warning about potential GPL violation w/HOTPLUG_FIRMWARE=no. 2012-04-05 20:34:50 +00:00
vpmadt032_loader Update copyright on changed files since 2011-01-01. 2011-01-03 14:55:24 +00:00
wcb4xxp wcb4xxp: Remove asm/system.h include. 2012-04-05 16:22:41 +00:00
wct4xxp Assign NULL values to pointers to insure that future kfree calls do not cause errors. 2012-04-27 20:12:09 +00:00
wctc4xxp wctc4xxp: Replace 'ndo_set_multicast_list' with 'set_rx_mode' 2011-12-02 19:56:07 +00:00
wctdm24xxp wctdm24xxp: Only two polarity reversals are needed to validate RING on FXO ports. 2013-01-25 13:09:32 -06:00
wcte12xp wcte12xp: Fix stack corruption when checking T1 RBS states. 2012-08-16 21:38:57 +00:00
xpp xpp: Do not typedef bool on RHEL 5.2 or later. 2013-01-25 13:08:52 -06:00
adt_lec.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
adt_lec.h wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
arith.h wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
biquad.h wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
dahdi_dummy.c dahdi_dummy: Include timer.h instead of time.h 2012-04-05 16:22:37 +00:00
dahdi_dynamic_eth.c dahdi_dynamic_eth: Make ztdeth_exit() symetrical with ztdeth_init() and fix race on unload. 2012-04-03 20:10:16 +00:00
dahdi_dynamic_ethmf.c 'dahdi_copy_string()' -> 'strlcpy()' 2011-01-03 18:26:29 +00:00
dahdi_dynamic_loc.c dahdi_dynamic_loc: Change and check the dyn->pvt pointer under lock. 2012-04-03 20:10:20 +00:00
dahdi_dynamic.c dahdi_dynamic: Close race on unload if red alarm timer was running when unloaded. 2012-04-03 20:10:12 +00:00
dahdi_echocan_jpah.c dahdi-base, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp, kernel: Allow name of EC factory to vary based on channel 2010-12-09 20:19:26 +00:00
dahdi_echocan_kb1.c dahdi-base, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp, kernel: Allow name of EC factory to vary based on channel 2010-12-09 20:19:26 +00:00
dahdi_echocan_mg2.c dahdi-base, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp, kernel: Allow name of EC factory to vary based on channel 2010-12-09 20:19:26 +00:00
dahdi_echocan_oslec.c dahdi-base, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp, kernel: Allow name of EC factory to vary based on channel 2010-12-09 20:19:26 +00:00
dahdi_echocan_sec2.c dahdi-base, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp, kernel: Allow name of EC factory to vary based on channel 2010-12-09 20:19:26 +00:00
dahdi_echocan_sec.c dahdi-base, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp, kernel: Allow name of EC factory to vary based on channel 2010-12-09 20:19:26 +00:00
dahdi_transcode.c 'dahdi_copy_string()' -> 'strlcpy()' 2011-01-03 18:26:29 +00:00
dahdi-base.c dahdi: Fix compilation when CONFIG_DAHDI_WATCHDOG is defined. 2012-04-11 17:45:45 +00:00
dahdi-sysfs.c remove a duplicate dev_set_name() 2012-03-21 19:36:32 +00:00
dahdi-version.c dahdi: Do not rebuild dahdi-base.c when only updating the version. 2011-02-28 14:19:09 +00:00
dahdi.h dahdi: Expose dahdi devices in sysfs. 2011-10-26 18:59:20 +00:00
ecdis.h wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
fir.h wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
fxo_modes.h wctdm24xxp, wctdm: Reduce memory used by fxo_modes array. 2011-04-04 16:26:00 +00:00
Kbuild Build OSLEC EC if in the tree 2012-01-17 14:50:01 +00:00
Kconfig wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
Makefile wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
makefw.c wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
pciradio.c dahdi: Register devices instead of individual spans. 2011-10-26 18:58:14 +00:00
pciradio.rbt wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
proslic.h wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
tor2-hw.h "struct pci_device_id[]" -> "DEFINE_PCI_DEVICE_TABLE" 2011-01-03 18:26:24 +00:00
tor2.c dahdi: Register devices instead of individual spans. 2011-10-26 18:58:14 +00:00
tormenta2.rbt wct4xxp: Moving the transmit short detection behind debug module param. 2010-08-27 21:59:27 +00:00
wcfxo.c dahdi: Remove dahdi_span.irq and move dahdi_span.irqmisses into dahdi_device. 2011-10-26 19:00:28 +00:00
wct1xxp.c dahdi: Remove dahdi_span.irq and move dahdi_span.irqmisses into dahdi_device. 2011-10-26 19:00:28 +00:00
wctdm.c dahdi: Remove dahdi_span.irq and move dahdi_span.irqmisses into dahdi_device. 2011-10-26 19:00:28 +00:00
wcte11xp.c dahdi: Remove dahdi_span.irq and move dahdi_span.irqmisses into dahdi_device. 2011-10-26 19:00:28 +00:00