This change is to primarily to clarify that the types are always mutually
exclusive.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9958 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This also allows us to add them to the union with the other module types so
they do not add to the memory usage if there aren't any QRV modules installed.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9957 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Move the data backing the mostly unused string away from the active
members of 'struct wctdm'.
The location where some of the other members of 'struct wctdm' are initialized
were moved so that wctdm_back_out_gracefully always has a fully formed
structure to work on.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9955 a0bf4364-ded3-4de4-8d8a-66a801d63aff
We can already use the module type to determine presence of a module to
check. This also moves the background polling of the modules until after
the board is completely initialized because the module type may change
while the different types are being probed. This also means that we need
to preset the shadow registers for the FXS because otherwise the shadow
register will not have been read before the first time it's checked for
a power alarm.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9954 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Both limit the amount of junk in the kernel log and also prevent dahdi_cfg
from running indefinitely if there is a module with a hardware problem which
prevents it from completing the startup sequence.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9953 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Part of increasing system startup speed.
Splitting these two operations facilitate checking if there is a module
present synchronously on driver load from the actual load of the firmware and
configuration of the channels.
This will allow the presence of the VPM module to be flagged on the span
before registration, but load and configuration can happen in the background.
When the modules are eventually loaded via udev, there will be enough time
from the time the drivers are loaded to when dahdi_cfg will run to complete
the firmware load, eliminating the need to block the driver here.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9951 a0bf4364-ded3-4de4-8d8a-66a801d63aff
In my opinion naming the VPM workqueues for each board is not worth the
extra complexity.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9950 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Ensures that a single run of the interrupt service routine is consistent
about whether there are VPMADT032 commands to process or not.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9949 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This message also duplicates what is in the /etc/dahdi/system.conf file
and should only be necessary when troubleshooting problems.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9948 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This is trivial cleanup. Fixing up a couple of places that followed a
kmalloc with a memset to 0 and also sneaked in one ARRAY_SIZE usage
change.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9947 a0bf4364-ded3-4de4-8d8a-66a801d63aff
The firmware load of the VPMADT032 was moved to startspan because a
quad-span card in the same system would would lock interrupts for
several seconds to load VPMOCT064/128 firmware. Now that the wct4xxp
driver no longer locks interrupts while loading its VPM module this
driver can move the VPMADT032 check/load back to module load time.
This is also required so that the presence of a hardware echo canceler
is marked on the span before it is registered with dahdi-base.c.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9946 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This is always true currently but will not necessarily be in the future.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9945 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Currently the board will always be ready if the module initialization
function is complete but this change will facilitate allowing some of
the more time consuming configuration steps to happen in parallel on
system start.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9944 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This defines a NULL value for the name of an echocan as invalid. This
will allow dahdi_genconf to probe for the presence of a hardware echocan
on a channel by trying to attach one. If there is not a hardware echocan
available DAHDI_ATTACH_ECHOCAN ioctl will return -EINVAL if 'hwec' was
specified as the name of the echo canceler now.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9943 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Not quite ideal, but this seems to be the most straightforward way to
know when someone is trying to monitor the preec stream on a channel.
This callback allows the board driver providing the span an opportunity
to setup the hardware preecho monitoring as needed.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9942 a0bf4364-ded3-4de4-8d8a-66a801d63aff
dahdi_ec_chunk is the function that saves the received audio and places
a signed linear copy of it in the pre echocanceled buffer on the
channel. By splitting the input and output of this function into two
parameters, a driver that can provide separate pre and post ec streams
can pass them independently to DAHDI, without worrying about DAHDI
overwriting a stream that may have already been echocanceled by the
hardware.
Previously, the dahdi_ec_chunk interface took a received audio buffer
and overwrote it after canceling the echo. Now the input and output
from the function are broken up in order to support hardware echocans
that have a different preechocan stream.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9941 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This change ensures that the dahdi_span_ops callbacks are not called
with any spinlocks held, and that the module is pinned in memory, and
also passes the struct file * pointer to the callbacks.
Passing the file pointer to the callbacks allows the board drivers to
check any flags on the file descriptor used to configure the
span/channel. The intent here is to allow dahdi_config to open the
/dev/dahdi/ctl file in a non-blocking mode in case there is a lengthy
processes that needs to happen as part of configuration.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9940 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This allows any echocan cleanup to block if necessary. Especially useful
for hardware echocans that may need to wait for hardware to complete the
cleanup process.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9939 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Some older Asterisk versions do not handle well the error message when poll is
called on an unconfigured channel. The result would be constant
__ast_read: No/unknown event '0' on timer for 'DAHDI/1-1'?
messages from Asterisk.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9937 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This duplicates information that is already in the
/etc/dahdi/system.conf file and should normally only be necessary for
the user when debugging problems.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9936 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This change fixes a condition where 'dahdi_cfg -s' would always return
success regardless of whether a board driver was able to complete the
shutdown. Only impacts board drivers that implemented the shutdown span
callback.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9935 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This allows dahdi-base to know whether or not there is a VPM attached to
the module as soon as it's registered as opposed to waiting for start
span. This will simplify dahdi_genconf's task of creating a valid
configuration file.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9933 a0bf4364-ded3-4de4-8d8a-66a801d63aff
If we always set maintstat to DAHDI_MAINT_NONE, dahdi_base will lose
track of what it thinks the current state of the span is.
For example, if you run
$ dahdi_maint -s 1 --loopback localhost
When t4_clear_maint is called, the current maintenance mode state,
'maintstat', is set to DAHDI_MAINT_NONE. So the next time you call:
$ dahdi_maint -s 1 --loopback off
dahdi-base.c will believe that the user is trying to set the maintenance
state from DAHDI_MAINT_NONE to DAHDI_MAINT_NONE and will not actually do
anything.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9932 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Do not allow the interrupt handler or another CPU to change the value
between when we get the initial value and when we write the modified
value.
Also includes a minor formatting fix where braces were not aligned, and
remove 'inline' from t4_framer_in and t4_framer_out definitions.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9931 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Turn this option on for the entire wct4xxp driver in order to quiet the
warnings in the oct612x source files. These files are from a vendor drop and
the goal is to limit the deviations from the vendor if possible.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9930 a0bf4364-ded3-4de4-8d8a-66a801d63aff
gcc-4.6 now warns about variables that are set but never used. Clean up
unused variables everywhere except the oct612x subdirectory.
The oct612x should go in a separate patch in case that needs to be
pulled out into a separate project again.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9929 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Some older Asttribanks had an empty label string. They should be ignored
when testing for a duplicate label at device probe time.
While we're at it, reduce panic level in the notice.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9925 a0bf4364-ded3-4de4-8d8a-66a801d63aff
XPP_DEBUGFS code was some code used to send BRI D-Channel data
through debugfs for, well, debugging. Unused in recent years.
Time to remove.
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9917 a0bf4364-ded3-4de4-8d8a-66a801d63aff
OLD_PROC marked old and unused code that was used for writing to procfs.
It has long ago been replaced with different sysfs interfaces. Time
to remove it.
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9916 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Commit r9781, "wcte12xp, wctdm24xxp: Remove unused support for booting
VPMADT032 from SPI", introduced a bug that would prevent the VPMADT032
from ever being able to complete its startup. This regression did not
make it to any releases.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9914 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Introduced in rev 9905, this bug could cause buffer events to become
disabled if the kernel was unable to access userland data.
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9907 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Add BUFFEVENTS and individual buffer event channel flags so that DAHDI can
notify userspace processes when it is dropping data. This can be useful when
trouble shooting fax problems since DAHDI currently silently discards data
becasuse of scheduling latency. With this change, Asterisk could log an event
as opposed to just leaving it up to the tone detectors to figure out there was
some unexpected phase shift.
Acked-by: Shaun Ruffell <sruffell@digium.com>
(original patch by Matt Fredrickson)
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9905 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Alexandre reported that on a particular server he would get a server
crash when loading the wcte12xp driver after receiving a line about a
timeout when trying to read the mode selection jumpers.
If the driver times out when trying to read the mode selection bits
there is a serious problem and it should not try to continue on with
configuration / registration.
Reported-and-Tested-by: Alexandre Abreu <alexandre.abreu@redt.com.br>
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9902 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Most of the timers added to the kernel will be configured to fire at the
same rate. This allows one "wake_up" from interrupt context to wake up
all the waiters. On one test system, I saw about a ~10% improvement in
CPU utilization when 10,000 timers were opened.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9891 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Saves ~2K bytes from the size of wctdm24xxp.ko module, which saves system
memory when the driver is loaded.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9890 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This change saves around 2.5 us from the interrupt handler.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9889 a0bf4364-ded3-4de4-8d8a-66a801d63aff
It is only ever accessed in interrupt context anyway. Saves several
hundred nanoseconds from hard interrupt context.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9888 a0bf4364-ded3-4de4-8d8a-66a801d63aff
No need for the CPU to wait there for that write to flush when all the
writes will be flushed when the interrupt is acknoledged later. Saves
nearly a 1 us from the interrupt handler on a 3Ghz Xeon test system.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9887 a0bf4364-ded3-4de4-8d8a-66a801d63aff
We are in hard-irq context already, so we do not need to disable all
local interrupts. On one 3.06GHz Xeon test machine, drops the average
time in the interrupt handler from 23.10 us to 21.87 us.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9886 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Allows the board drivers to use the regular locks instead of the
irqsave/irqrestore variants.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9885 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Since cli/sti are expensive instructions, if the board drivers are
calling receive/transmit/ec_span from interrupt context all local
interrupts do not need to be disabled. The board drivers all still use
the normal dahdi_receive and dahdi_transmit. _dahdi_receive and
_dahdi_transmit are the "in-hardirq" versions of those functions.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9884 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Reduces the number of locks that must be grabbed and released in interrupt
context. On one 3.06Ghz Intel Xeon test machine, drops the average time in
the interrupt handler from 29.83 us to 23.10 us.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9883 a0bf4364-ded3-4de4-8d8a-66a801d63aff
These drivers (all DAHDI drivers) should explicitly block suspend if they are
loaded.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9882 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Makes the driver a little more kexec friendly when sharing an interrupt
line with another device.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9881 a0bf4364-ded3-4de4-8d8a-66a801d63aff
voicebus_quiesce is like voicebus_stop, except that it doesn't wait for any
information to come back from the card. This prevents kexec from blocking
waiting for information from a potentially dead card.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9880 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Fixes regression introduced in r9603 where if a channel was "dacs" with
another interrupts would be reenabled prematurely.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9878 a0bf4364-ded3-4de4-8d8a-66a801d63aff
r9402 switched to dma_pool for the SFRAMES. This updates the network
debug device to use the dma_pools for SFRAME allocation.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9877 a0bf4364-ded3-4de4-8d8a-66a801d63aff
If the clock shifts back, don't hang in a loop of running
process_masterspan from the timer interrupt forever.
Fixes a regression of r9407.
(closes issue #19035)
Reported by: tzafrir
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
After talking with Tzafrir on IRC, I combined the check if your far ahead
with the check if you're behind and added a '\n' at the end of the
existing "detected time shift" message. That is why this patch is
different than what is posted on issue #19035.
Acked-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9876 a0bf4364-ded3-4de4-8d8a-66a801d63aff
r9720 disabled the LEDs on the front panel of the TDM410. This commit
restores the behavior and clarify which part of the TDM410 eframes
control the LED operation.
(closes issue #18939)
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9827 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Since there never was a VPMADT032 module shipped with non-volatile
memory no need to check that bit contantly in interrupt context. Also
remove the unused VPM150M_DTMFDETECT bit.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9781 a0bf4364-ded3-4de4-8d8a-66a801d63aff
These functions were accidentally left in. They should have been remove in
"wctdm24xxp: Remove code for unsupported modules." r9720
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9780 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This moves the version string into dahdi-version.c that is then linked into
dahdi-base.c and dahdi-sysfs.c. This speeds builds on slow computers since
dahdi-base.c and dahdi-sysfs.c does not need to be rebuilt if only the version
string is changing.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Oron Peled <oron.peled@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9777 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Switch to using the newer seq_file interface for procfs. Fixes a
race when you read the "file" while its size increases (e.g. the span
enters an alarm state).
Signed-off-by: Oron Peled <oron.peled@xorcom.com>
Acked-by: Shaun Ruffell <sruffell@digium.com>
Acked-By: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
(closes issue #18760)
Patches:
0001-DAHDI-linux-trunk-replace-old-proc-interface-by-mode.patch uploaded by tzafrir (license 46)
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9770 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Trival name change to increase readability in the transmitprep and
recieveprep functions. Now we clearly define if we are working with an
sframe or an eframe.
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Acked-By: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9768 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Since the oct6100 API consumes less stack there is no longer a danger of
overflowing our stack during load.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9752 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This saves ~300K of kernel memory for each quad or dual span VPM. Due
to the fact that this change disables caching of the NLP words (among
other things), the time to disable the echocans appears to have
increased by ~1ms.
Before this change:
=======================================================================
0) ! 356.498 us | vpm450m_setecmode(); <--- disable
0) ! 387.762 us | vpm450m_setecmode(); <--- enable
0) ! 429.839 us | vpm450m_setecmode(); <--- disable
]# echo 1 > /proc/sys/vm/drop_caches && free -k
total used free shared buffers cached
Mem: 2005352 228368 1776984 0 132
5540
-/+ buffers/cache: 222696 1782656
Swap: 983036 0 983036
After this change:
=======================================================================
0) ! 1109.515 us | vpm450m_setecmode(); <--- disable
0) ! 339.017 us | vpm450m_setecmode(); <--- enable
0) ! 1431.460 us | vpm450m_setecmode(); <--- disable
]# echo 1 > /proc/sys/vm/drop_caches && free -k
total used free shared buffers cached
Mem: 2005352 228080 1777272 0 112
5484
-/+ buffers/cache: 222484 1782868
Swap: 983036 0 983036
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9750 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Drops the size of the wctdm_ioctl stack from 524 to 204 bytes.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9748 a0bf4364-ded3-4de4-8d8a-66a801d63aff
The code is duplicated in the config_vpmadt032 function.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9747 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Fixes a regression introduced in r9611. Analog spans would never become
the master since the SPANSTART ioctl is not typically called on them,
and therefore they were never marked RUNNING. The result could be audio
problems.
I'm marking this as related to issue 13205 since it's generally all
related to how should the drivers select which span is the master. I
also mark as related to issue 16165 because the problems experienced are
a result of the same fundamental issue.
(issue #13205)(issue #16165)
Reported-and-Tested-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9729 a0bf4364-ded3-4de4-8d8a-66a801d63aff
With the release of Linux 2.6.37, the Big Kernel Lock is now a compile
time option. This change adds a mutex around the one place in the code
that we already knew was dependent on the lock_kernel/unlock_kernel
calls for serialization and drops the other calls to
lock_kernel/unlock_kernel if CONFIG_BKL is not defined.
This is *mostly* the dahdi-no-bkl.patch with a few minor whitespace
changes, the global_dialparmslock made static, and a warning added to
let people know they are running an experimental configuration.
(issue #18604)
Reported by: jkroon
Patches:
dahdi-no-bkl.patch uploaded by jkroon (license 714)
Signed-off-by: Jaco Kroon <jaco@uls.co.za>
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9721 a0bf4364-ded3-4de4-8d8a-66a801d63aff
The VPM100 and S100M modules are no longer supported. Analog cards supported
by the wctdm24xxp are still compatible with the S110 and VPMADT032 modules.
DAHDI-302
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9720 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Folded XPD_STATE() "protocol method" into the card_state() method.
It was only called from these (otherwise empty) methods.
Also it is not a "protocol method" for a very very very long time.
Signed-off-by: Oron Peled <oron@actcom.co.il>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9715 a0bf4364-ded3-4de4-8d8a-66a801d63aff
* Caller to CALL_XMETHOD() no longer need to explicitly pass xbus
(calculate xpd->xbus)
* Create CALL_PHONE_METHOD() similar to CALL_XMETHOD() -- inlining
the extra parameters (more readable)
* Reverse parameter order in PHONE_METHOD() and CALL_PHONE_METHOD()
to be consistent with XMETHOD() and CALL_XMETHOD()
* Rename XPD_STATE phonedev method to card_state:
- Consistency with other phonedev methods.
- These calls now Wrap internal calls to XPD_STATE protocol HOSTCMD
in PRI, BRI, FXS, FXO
Signed-off-by: Oron Peled <oron@actcom.co.il>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9706 a0bf4364-ded3-4de4-8d8a-66a801d63aff
* Add IS_PHONEDEV(xpd) macro
* Reject dahdi_register_xpd()/dahdi_unregister_xpd() for non-PHONEDEV
* Make sysfs 'offhook' attribute contain '\n' if empty (no channels)
* Skip PHONEDEV related xbus_tick() parts -- we still want to process
the end of it for the card_tick() calls.
* Remove BUG_ON() for missing phoneops
(also remove old duplicate test for XBUS_IS...)
* Call XPD_STATE method only for PHONEDEV XPD's
Signed-off-by: Oron Peled <oron@actcom.co.il>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9705 a0bf4364-ded3-4de4-8d8a-66a801d63aff
* Allow having XPDs that represent a device that is not a span.
* Refactor all span related data from 'struct xpd' to 'struct phonedev'
* Refactor span related methods into 'phonedev->phoneops'
* Refactor phone related initialization into phonedev_init()/phonedev_cleanup()
Signed-off-by: Oron Peled <oron@actcom.co.il>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9704 a0bf4364-ded3-4de4-8d8a-66a801d63aff
_t4_remove_one is now used during module initialization so it should not
be placed in the exit section of the module.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9650 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Eliminates the interruptible_sleep_on deprecated and prevents the driver from
triggering the SLEEP_ON_BKLCHECK warning.
It is still desirable to convert the cmdq to something more like what is in
the single span to eliminate the need to schedule the sleeping process every
millisecond while we're waiting for the command to complete.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9646 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Just clarifying a parameter that is never updated.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9644 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Move the description of the master span processing to above the
process_masterspan function.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9643 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This fixes a regression introduced in r9603. That commit removed
DAHDI_CONF_DIGITALMON handling (which is used to natively bridge two
channels that cannot be crossed in the board driver / hardware) since I
mistakenly thought that it was only part of the DACS handling. The
symptom of the regression is muted audio when Asterisk tries to natively
bridge two channels.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9642 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Move pseudo channel numbers up into a high range so that their presence
does not interfere with assigning channel numbers for the channels
implemented on spans. Otherwise, if a pseudo channel was opened up
before an expected span was registered, all the channel numbers in the
newly registered span would be bumped up one. This does limit the number
of real channels that a single system may have registered to 32K (but in
dahdi-linux 2.4.0 and below you were limited to 1024 channels anyway,
both real and pseudo).
Also, the string name of the Pseudo channel is now based off the
number of Pseudo channels and not the total number of channels.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9637 a0bf4364-ded3-4de4-8d8a-66a801d63aff
If dahdi_register fails, we would like the error to propagate to the
user who ran modprobe.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9636 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Extended reset is needed primarily with the PCI express version of the
dual and quad-span cards. Enable it by default for those cards and
allow it to be forced on or off globally for the driver as a compile
time option.
The options to force it should be able to come out if there aren't any
further reports that the compile time option needs to be set.
DAHDI-773
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9635 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Now that makefw has the proper name, the rule to create it is
automatically generated by Kbuild. Removed.
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9632 a0bf4364-ded3-4de4-8d8a-66a801d63aff
If we tell Kbuild (at least of some versions) that the host program is
$obj/makefw , it will attempt to create the full path of $(obj) for it
under the current $(obj).
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9630 a0bf4364-ded3-4de4-8d8a-66a801d63aff
* Refactor SysFS and device-related code to drivers/dahdi/dahdi-sysfs.c .
* Move common headers to drivers/dahdi/dahdi.h .
This commit merely moves existing code and should have no functional
change.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Oron Peled <oron.peled@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9628 a0bf4364-ded3-4de4-8d8a-66a801d63aff
* Separate out device generation in dahdi_[un]register to separate
functions.
* As we don't keep anywhere the information of whether or not
* there's
an existing device node for a channel, I abuse an unused flag:
DAHDI_FLAGBIT_DEVFILE (25), to mark if the channel has a sysfs node.
DAHDI_FLAGBIT_DEVFILE is expected to be replaced later on with a proper
pointer to the device (or embedding of the device). I prefer a simple
flag for now as it does not break ABI.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-by: Shaun Ruffell <sruffell@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9625 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Separate out device initialization and removal functions:
dahdi_sysfs_init() and dahdi_sysfs_exit(). A safer way of
generating the main device files.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9623 a0bf4364-ded3-4de4-8d8a-66a801d63aff
dahdi_check_conf() acqurires the locks as needed when scanning the
channels and should not be called under any spinlocks.
Fixes a regression that Tzafrir reported in #asterisk-dev that he could
trigger via "asterisk -rx 'channel originate Local/600@demo
Application Meetme 3000,d'"
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9621 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This fixes a regression from r9609 that Tzafrir reported. If you
register multiple spans, then remove the first span and try to register
a new span with more channels then the old span, you could end up with
multiple channels with the same number.
This change ensures that spans are ordered and that channels on a span
are always contiguous and ordered in relation to the spans.
In previous released versions of DAHDI (2.4.0 and below) this condition
would result in spans that may not have contiguous blocks of channels.
So it fixes both a recent regression and improves the behavior.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9617 a0bf4364-ded3-4de4-8d8a-66a801d63aff
The default tone lengths are compile time options and they were in
digits.h to make it easy for users to patch. Most of these settings are
potentially overridden from user space via the DAHDI_SET_DIALPARAMS
ioctl currently regardless of these settings.
In r9597 I moved digits.h directly into dahdi-base.c since I thought it
was broken out for sharing between compilation units as opposed to
ease patching.
I also changed the units of the default options to ms instead of in
samples. This way if the sampling frequency changes the user will not
need to update the defaults.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
asterisk-dev-reference: 4D236FD7.30707@digium.com
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9616 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This is a cleanup as part of simplifying reference counting for the
spans.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9612 a0bf4364-ded3-4de4-8d8a-66a801d63aff
When a span goes into alarm it will look for a potential new master
span. For dynamic spans that are running their processing in the
sync_tick callback, the chan_lock will already be held. Therefore,
push the locating of a new master out to the global workqueue.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9611 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Since there isn't a fixed array to hold all the channels, and also limit
the total number of channels that can be created, we'll add a module
parameter to allow the system administrator to specify the maximum
number of pseudo channels. This is to prevent a potentially
non-privledged process from consuming too much CPU (since all pseudos
are checked each "tick" for conferencing) and kernel memory.
By default the number of pseudo channels is limited to 512. Change the
default limit with:
]# modprobe dahdi max_pseudo_channels=<new limit>
or at runtime with:
]# echo <new limit> > /sys/module/dahdi/parameters/max_psuedo_channels
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9610 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Remove the remaining locations the 'chans' array was referenced but keep
the observable behavior the same. Namely, channels are numbered in
registration order. Only now it's possible to renumber channels easily
since their number is not also their implied location in the 'chans'
array.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9609 a0bf4364-ded3-4de4-8d8a-66a801d63aff
In dahdi_chec_conf, dahdi_chan_unreg, and dahdi_ioctl_confdiag maxchans
and DAHDI_MAX_CHANNELS was used to scan through all the channels. Since
the channels are stored on the list of spans and list of pseudo
channels, we can directly iterate through those lists. This also paves
the way for removing the arbitrary limit on the number of channels in
the driver.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9608 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Part of getting rid of global chans array. We need to search the list
of spans and the list of pseudo channels. While this is slower than a
direct index into a 'chans' array, the places where this function is
called are not in the 'hot' path but instead part of channel
configuration and conferencing setup.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9607 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Streamlines the function a bit by grouping the three conditions that
would cause the channel receive to be completely skipped.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9606 a0bf4364-ded3-4de4-8d8a-66a801d63aff
IMO this improves readability of dahdi_receive and dahdi_transmit, and
the compiler can decide if it is better to inline this in with the
caller or break it out into a separate function.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9605 a0bf4364-ded3-4de4-8d8a-66a801d63aff
When we're in monitor mode, we can save a pointer to the channel we are
monitoring directly instead of dereferencing the 'chans' array each
time.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9604 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This both removes the need to reference the 'chans'
__dahdi_process_putaudio_chunk and __dahdi_process_getaudio_chunk, and
allows the dahdi_receive / dahdi_transmit logic to be streamlined. DACS
channels can no longer be echocanceled if crossed. However, if a
channel was DACSed with dahi_cfg it couldn't have been echocanceled
anyway since the echo cancelers are disabled on the channel by default.
This change was originally contained in a patch kpfleming had floating
around. I split it up and merged it.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Kevin P. Fleming <kpfleming@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9603 a0bf4364-ded3-4de4-8d8a-66a801d63aff
There is no need to check the flag on the master channel when processing all
the slave channels. Originally part of a patch kpfleming had floating around.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Kevin P. Fleming <kpfleming@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9602 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Eliminates the need to look for the channel number twice.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9599 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Spans are no longer added to a static array, but they are chained
together in a list. DAHDI_MAX_SPANS, while no longer used in the
kernel, is still in include/dahdi/user.h since dahdi tools is currently
using it.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9598 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Clarify that these definitions are not / no longer used outside
dahdi-base.c.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9597 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Mainly I wanted to document that the global_dialparams is protected by
the BKL so that it can be closely checked when lock_kernel is removed
from DAHDI.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9596 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This change primarily is a memory reduction. Most users only ever have
a single tone zone loaded so we can save some mostly unused pointers by
using a list instead of an array. Since we also have a pointer to the
dahdi_zone in struct dahdi_chan, we also don't need to store the integer
that is an index into that array. This saves 4 bytes for every channel
allocated in the system. Finally, we don't need a separate default_zone
member since we're on a list, we can define the first element on
the list to always be the default zone.
Additionally, all reference counted structures in the drivers should
standardize on kref as much as possible for simplicity.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9594 a0bf4364-ded3-4de4-8d8a-66a801d63aff
kasprintf will be used in upcoming changes and it's not supported on
RHEL4 kernels. This change essentially backports it.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9593 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Might help when someone wonders why they are now getting errors about
"lock_kernel" being undefined.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9592 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Not only should you not reach that line, it's impossible for you to
reach that line.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9591 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Do not allocate the structure with GFP_KERNEL under the lock in
dahdi_echocan_factory_register and closes a leak in
dahdi_echocan_factory_unregister.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9590 a0bf4364-ded3-4de4-8d8a-66a801d63aff
rwlocks are slowly being deprecated because they typically do not
provide the performance increase expected. Most of the
ecfactory_list_lock acquiring is during setup and not in the hot path
anyway, so we can just use the simpler spinlock semantics without the
overhead of a semaphore or mutex.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9589 a0bf4364-ded3-4de4-8d8a-66a801d63aff
rwlocks are deprecated and there aren't that many places where read_lock
was called on the lock anyway.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9588 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Since the return value is not defined/used just return void.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9587 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This is a trivial cleanup to primarily to remove the #ifdef test out of
process_masterspan.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9586 a0bf4364-ded3-4de4-8d8a-66a801d63aff
There is already a safe string copying function in all the kernels DAHDI
currently supports.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9585 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2.6.25 added the DEFINE_PCI_DEVICE_TABLE macro to make sure that the
pci_device_id tables are put into the correct section in the binary.
Convert all the places where the tables were defined to use them.
This is linux-2.6 commit where the change went in along with the
rationale: 90a1ba0c5e39eeea278f263c28ae02166c5911c8
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9584 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Normally, spans are accessed via channels, which increment the reference
count on the supporting module as part of the open call. When operating
on spans by number we are susceptible to a module_unload while we are
accessing the span.
Renames find_span to span_find_and_get to indicate that we're both
finding the span by number and increasing the reference count on the
span. Spans themselves don't currently have reference counts, but we
can increment the reference count on the module that owns the spans.
This will prevent the module that has the span from unloading in the
middle of a span_config call, which in the case of the wcte12xp can take
awhile since the VPM firmware is loading.
Hopefully in the near future the spans themselves will be reference
counted directly.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9583 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Some spans, specifically dynamic local spans, should never be the timing
master since they are dependent on some other timing source driving
them.
The bit in 'struct dahdi_span' is named cannot provide timing so that by
default the other drivers will set it to 0.
This is loosely related to issue #13205 but doesn't address any of the
other elements of that issue about how to allow the user to configure
what the master span order of succession is.
(issue #13205)
Reported by: biohumanoid
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9581 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Also makes it safe to unregister a dynamic driver when there aren't any
open channels on the dynamic spans.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9580 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This allows the pvt member to be set under lock without holding the lock
through the call to create destroy.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9578 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Running in tasklets does not work well when dahdi doesn't have a span that is
acting as the master. In this case, process_masterspan is being called in
system timer that may not be running at 1ms intervals. The end result is that
the dynamic_run function isn't called for every chunk processed, and there is
data loss.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9577 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Dynamic spans that are unable to provide their own timing, like dahdi
local spans, typically derived their timing source from
dahdi_dynamic_ioctl(0,0) call in process_masterspan.
This change uses the sync_tick member of dahdi_span_ops instead so that
dynamic operations do not happen on a span until it is fully registered.
Also removes the check for dahdi_dynamic_ioctl in process masterspan for
those users that never load a dynamic span.
This was originally suggested in a comment on:
(issue #13205)
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9576 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2.6.9 is the earliest kernel version currently supported by DAHDI.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9575 a0bf4364-ded3-4de4-8d8a-66a801d63aff
Move the try_module_get/module_put calls from the various dynamic
drivers into the "core" dahdi_dynamic.c file itself. This way, a
reference count can always be held while calling through the function
pointers. This is enabled by adding an .owner field to 'struct
dahdi_dynamic_driver'.
Dynamic spans are also unique in dahdi in that they require a "dahdi_cfg
-s" to stop them and release the references on the modules. This is
counterintuitive. This change makes sure they are reference counted just
like other spans and on driver unload, if there aren't any open handles
from userspace, they will take care of unwinding themselves.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9573 a0bf4364-ded3-4de4-8d8a-66a801d63aff
dahdi_dynamic can be converted to use kernel idiomatic reference
counting since DAHDI only supports 2.6.9+ kernels now.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9571 a0bf4364-ded3-4de4-8d8a-66a801d63aff
The return value from the transmit callback function was not used
anywhere, and is now removed.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9570 a0bf4364-ded3-4de4-8d8a-66a801d63aff
