Commit Graph

55 Commits

Author SHA1 Message Date
Shaun Ruffell
f02b476fee dahdi: Add functions for determining spantype (E1/T1) to include/dahdi/kernel.h
Uses the linecompat member to determine what type of span it is. This will
allow removing T1/E1 flags from other places where the span type is stored.

This function also changes the return value from bool to int for the
inlines defined in include/dahdi/kernel.h. This is because not all
kernel versions include stdbool.h in the headers and it will conflict
with boolean values that are exported via module parameters on some
older kernels if dahdi included it globally.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10227 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-10-20 20:51:49 +00:00
Shaun Ruffell
4231523c2f dahdi: Define pr_xxx macros if not already defined.
The pr_ macros are the recommended way for subsystems to print messages
but not all kernel versions DAHDI support has them defined.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10226 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-10-20 20:51:44 +00:00
Shaun Ruffell
77113b822f dahdi: Define HAVE_NET_DEVICE_OPS on kernels > 2.6.29
HAVE_NET_DEVICE_OPS was defined in the mainline kernel in commit
47fd5b83 which was first released in 2.6.29. Any kernels after that will
have those fields defined.

Mainline commit e2270ea62ae4d7a removed the feature test macros, so
the easiest thing to do is define HAVE_NET_DEVICE_OPS ourselves on the
kernels since it was committed.

This change is needed to compile against the 3.1 kernel.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10109 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-08-10 19:21:56 +00:00
AST_C_DEFINE_CHECK([DAHDI], [DAHDI_RESET_COUNTERS], [dahdi/user.h], [230])
a28a982b75 Revert "dahdi: Use enumeration for maintenance modes."
This reverts commit r9879. Asterisk commit r264249 [1], which was committed
after the switch to enumerations, requires the maintenance modes to be

Changing the test in configure.ac from:

AST_C_DEFINE_CHECK([DAHDI], [DAHDI_RESET_COUNTERS], [dahdi/user.h], [230])

to:

AST_C_COMPILE_CHECK([DAHDI], [int foo = DAHDI_RESET_COUNTERS], [dahdi/user.h])

Would allow the maintenance modes to stand as enumerations but the potential
for users to run incompatible versions does not seem worth it at this point.

[1] http://svnview.digium.com/svn/asterisk?view=revision&revision=264249

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@10000 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-06-29 15:32:40 +00:00
Shaun Ruffell
ab15df5810 kernel.h: Define __packed if not already defined.
Linux kernel v2.6.22 introduced the __packed macro to allow the gcc specific
__attribute__((packed)) extension to be overridden if required and
checkpatch.pl will complain if you don't use it.

For some strange reason gcc doesn't complain when you use non-existant
decorators.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9989 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-06-28 15:55:38 +00:00
Shaun Ruffell
93a7adfb9f dahdi: Provide notification when preechocan buffer is created and destroyed.
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
2011-06-02 20:01:44 +00:00
Shaun Ruffell
dd33d6c357 dahdi: Update the dahdi_ec_chunk interface to support preec streams.
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
2011-06-02 20:01:40 +00:00
Shaun Ruffell
76df5ab26b dahdi: Allow dahdi_span_ops.[chan|span]config and startup to block.
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
2011-06-02 20:01:34 +00:00
Shaun Ruffell
c1e491930b dahdi: Support "struct mutex" on pre 2.6.16 kernels.
'struct mutex' was introduced in 2.6.16. While DAHDI previously allowed
statically allocated mutexes, this change is required in order to allow
mutexes to be embedded in dynamically allocated structures on older kernels.

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@9938 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-06-02 20:01:24 +00:00
Shaun Ruffell
8f5f051b92 wctdm24xxp: Check if the FXS signaling setting is valid.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9928 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-06-02 20:00:29 +00:00
Kinsey Moore
e591241187 dahdi: Add capability to generate events on buffer underruns and overruns
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
2011-04-15 16:16:19 +00:00
Tzafrir Cohen
868dd3f0d5 dahdi: Do not define dev_name if already backported.
RHEL 5.6 has backported dev_name in include/dahdi/devices.h.  We now need to
check for a back ported definition before defining our own version on pre
2.6.26 kernels.

(closes issue #18992)
Reported by: ndupeux, AlexCeli
Tested by: elguero

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@9894 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-04-11 18:41:47 +00:00
Shaun Ruffell
f8af2b7a5c dahdi: Add in-hardirq versions of the dahdi_receive/transmit/ec_span.
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
2011-04-04 16:25:23 +00:00
Shaun Ruffell
731388e275 wctdm24xxp, wcte12xp, wct4xxp, wcb4xxp, wctdm: Do not support suspend.
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
2011-04-04 16:25:09 +00:00
Shaun Ruffell
7b97611ef2 dahdi: Use enumeration for maintenance modes.
Clarifies that maintstates are mutually exclusive.

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@9879 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-04-04 16:24:45 +00:00
Shaun Ruffell
729addb7b2 dahdi: Add '#include <linux/kobject.h>' in dahdi/kernel.h
linux/kobject.h was removed from linux/fs.h in upstream commit 57cc721.
Add it back in in order to pick up the linux/kref.h include.

Reported-by: Raoul Bönisch <jkl345@alice-dsl.net>
Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9697 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-23 21:33:54 +00:00
Tzafrir Cohen
52cc07ecb1 span_sysfs_{create,remove}
* 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
2011-01-10 21:42:00 +00:00
Shaun Ruffell
a45f853395 dahdi: Move the default tone lengths into include/dahdi/dahdi_config.h
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
2011-01-05 15:52:03 +00:00
Shaun Ruffell
766d0755fd dahdi: Save pointer to monitored channel in struct dahdi_chan.
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
2011-01-03 18:27:53 +00:00
Shaun Ruffell
88345e505a dahdi: When DACS is enabled, hold a pointer directly to the crossed channel.
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
2011-01-03 18:27:49 +00:00
Shaun Ruffell
8053657761 dahdi: Change dahdi_chan.nextslave from index to a pointer.
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@9600 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-03 18:27:36 +00:00
Shaun Ruffell
800c356cf3 dahdi: Remove arbitrary limit on number of spans in the kernel.
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
2011-01-03 18:27:27 +00:00
Shaun Ruffell
daf96e677d dahdi: Change reference counting for tone zones.
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
2011-01-03 18:27:10 +00:00
Shaun Ruffell
215d530887 dahdi: Introduce dahdi_kasprintf for pre 2.6.12 kernels.
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
2011-01-03 18:27:05 +00:00
Shaun Ruffell
4763b89d5a dahdi, xpp: dahdi_span_ops.sync_tick should return void.
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
2011-01-03 18:26:39 +00:00
Shaun Ruffell
c6ae6d6cec dahdi: Trivial move of sync_tick callback to inline function.
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
2011-01-03 18:26:34 +00:00
Shaun Ruffell
25a8bb1abe "struct pci_device_id[]" -> "DEFINE_PCI_DEVICE_TABLE"
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
2011-01-03 18:26:24 +00:00
Shaun Ruffell
c050ca9065 dahdi: Allow spans to advertise if they can provide any timing.
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
2011-01-03 18:26:08 +00:00
Shaun Ruffell
593787e3b3 dahdi: If mutexes are not available use semaphores instead.
Mutexes were added in 2.6.16.  This will allow future changes to use the
mutex API without breaking on pre 2.6.16 kernels.

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@9579 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-03 18:26:00 +00:00
Shaun Ruffell
e0d94d5ca4 dahdi_dynamic: Pass the dahdi_dynamic to create/destroy functions.
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
2011-01-03 18:25:56 +00:00
Shaun Ruffell
cee7f745e5 dahdi_dynamic: constify the address parameter to create.
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@9574 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-03 18:25:36 +00:00
Shaun Ruffell
8212485969 dahdi_dynamic: dynamic drivers should not reference count themselves.
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
2011-01-03 18:25:32 +00:00
Shaun Ruffell
1aacc92326 dahdi_dynamic: "dahdi_dynamic_[un]register()" -> "dahdi_dynamic_[un]register_driver()"
Clarify that we're registering / unregistering 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@9572 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-03 18:25:27 +00:00
Shaun Ruffell
7251a7e35a dahdi_dynamic_[loc|eth|ethmf]: Remove unused return value from transmit callback.
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
2011-01-03 18:25:18 +00:00
Shaun Ruffell
c7ae773800 dahdi_dynamic: Use const pointers for dahdi_dynamic_driver strings.
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@9569 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-03 18:25:13 +00:00
Tzafrir Cohen
5759e5a6a6 constants for ctl, transcode, timer, channel, pseudo
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@9552 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-03 10:49:22 +00:00
Shaun Ruffell
2765186d03 dahdi: Use a single wait_queue_t for dahdi channels.
Since we've now switched to wait_event_interruptible calls, we have a
condition that we can check when we're awoken.  This allows us to
combine the separate wait queues into a single queue.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Russ Meyerreicks <rmeyerreicks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9548 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-12-21 16:09:22 +00:00
Kinsey Moore
7a7d4000a0 dahdi-base, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp, kernel: Allow name of EC factory to vary based on channel
Changed the echocan factory name to a function (get_name) called to get the
name.  This allows a factory to return a different name when being called in
reference to a channel such as in the case of hardware echo cancellers.  To
further accommodate this change for HWEC, a new echocan_name function was
added to the span ops struct and is used in hwec_factory in dahdi-base for
all cards that support hardware echo cancellation.

Signed-off-by: Kinsey Moore <kmoore@digium.com>
Acked-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9524 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-12-09 20:19:26 +00:00
Kinsey Moore
fd01eef199 dahdi-base, kernel, dahdi_echocan_*, wcb4xxp, wct4xxp, wctdm24xxp, wcte12xp: Remove name field from echocan ops
This field was redundant and was only used in places where the factory's name could be used.

Signed-off-by: Kinsey Moore <kmoore@digium.com>
Acked-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9523 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-12-09 20:19:21 +00:00
Russ Meyerriecks
5ee55a6147 dahdi: Clean up an unused waitqueue
The dahdi_span->maintq wait queue was very old and not being used so it
has been removed.

Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Acked-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@9514 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-12-08 22:11:46 +00:00
Shaun Ruffell
51bff0d802 wcte12xp: Use interruptible waits to decrease impact on load average.
The wcte12xp does all the checking for alarm in a user space workqueue.
Most of this time is spent sleeping waiting for reads from the framer to
complete.  Tasks in uninterruptible sleeps are added to running tasks
for the purposes of calculating load average. This change makes the
sleeps interruptible so as to not affect the load average as much.

For example, the following command will load and configure the driver and
then print the load average every 10 seconds.

]# modprobe wcte12xp && dahdi_cfg && ((x=12)); while [[ $x -gt 0 ]]; do cat
/proc/loadavg; sleep 10; let x=$x-1; done

With this change:
0.29 0.10 0.02 1/101 29945
0.24 0.10 0.02 1/101 29967
0.20 0.09 0.02 1/101 30019
0.17 0.09 0.02 1/101 30041
0.15 0.09 0.02 1/101 30062
0.12 0.08 0.02 1/101 30085
0.10 0.08 0.02 1/101 30107
0.09 0.08 0.02 1/101 30129
0.07 0.08 0.02 1/101 30151
0.14 0.09 0.02 1/101 30173
0.12 0.09 0.02 1/101 30195
0.10 0.08 0.02 1/101 30217
(and I've seen it get down to 0.0)

Before this change:
0.57 0.22 0.07 1/101 31920
0.48 0.21 0.07 1/101 31942
0.48 0.22 0.07 1/101 31964
0.48 0.23 0.08 1/101 31986
0.41 0.22 0.07 1/101 32008
0.42 0.23 0.08 1/101 32030
0.43 0.24 0.08 1/101 32054
0.45 0.25 0.09 1/101 32076
0.45 0.25 0.09 1/101 32098
0.46 0.26 0.10 1/101 32120
0.47 0.27 0.10 1/101 32172
0.39 0.26 0.10 1/101 32194

(closes issue #18142)
Reported by: foxfire
Tested by: foxfire

Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9512 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-12-08 01:56:56 +00:00
Shaun Ruffell
75c33ce64e dahdi: A little cleanup in the dahdi_ioctl_iomux function.
The primary change is to make clear that the wait result is not ever to
be returned by the function.  There are also edits to remove some
comments that were expressed clearly in the source already and ensure
that the iomux member of 'struct dahdi_chan' is only accessed under the
chan->lock.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Sean Bright <sean.bright@gmail.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9497 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-11-25 00:07:10 +00:00
Russ Meyerriecks
712704c237 dahdi: Moved the channel mirroring interface behind a build flag
It can now be enabled by un-commenting the CONFIG_DAHDI_MIRROR define in
include/dahdi/dahdi_config.h
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@9492 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-11-19 17:34:31 +00:00
Russ Meyerriecks
9090c6fcd2 dahdi: adding ss7 pcap support to dahdi.
Adding the patch from the issue with various fixups to fit style and
checkpatch

(issue #16831)
Reported by: tsearle
Patches:
      driver_v2.patch uploaded by tsearle (license 373)
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@9491 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-11-19 17:34:25 +00:00
Shaun Ruffell
3de1002cb5 dahdi: Constify the dahdi_txlevelnames and return of dahdi_lboname().
Also moves the dahdi_txlevelnames array into the dahdi_lboname function,
which is the only place it it used.

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@9468 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-11-04 16:40:49 +00:00
Shaun Ruffell
37097411ea Remove mutex emulation
Using semaphores as mutexes was removed from the kernel in 4882720b267b.
Just use straight semaphores now.  'DECLARE_MUTEX()' -> 'DEFINE_SEMAPHORE()'
and 'init_MUTEX()' -> 'sema_init()'.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
LKML-Reference: <20100907125057.562399240@linutronix.de>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9464 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-11-04 16:40:29 +00:00
Shaun Ruffell
aa5c973611 dahdi: Atomically set/test if channel has associated network device.
Push all tests for the DAHDI_FLAGBIT_NETDEV flag behind a
'dahdi_have_netdev' function so if CONFIG_DAHDI_NET is not defined the
compiler can just remove all the flag tests.  Also, makes sure that the
bit is checked / set atomically.

(closes issue #9379)

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9444 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-10-20 12:23:16 +00:00
Shaun Ruffell
2ba1b4c201 dahdi: Add compile time DAHDI_ECHOCAN_PROCESS_TX option.
Add optional interface to allow software echo cans to process the
transmitted samples.  Can be used for things like DC removal.

I used the following patches uploaded by biohumanoid but changed the
name of 'echocan_hpf_tx' to 'echoan_process_tx and put the changes
behind a compile time option.

(issue #13562)
Reported by: biohumanoid
Patches:
      kernel.h.patch uploaded by biohumanoid (license 459)
      dahdi-base.c.#2.patch uploaded by biohumanoid (license 459)

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9442 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-10-20 12:23:06 +00:00
Kinsey Moore
408787c77b dahdi: Anonymous member in dahdi_echocan_events union.
Make explicit what part of the union is being accessed.

(closes issue #15908)
Reported by: ys
Patches:
      dahdi-dahdi_echocan_events.diff uploaded by ys (license 281)

Signed-off-by: Kinsey Moore <kmoore@digium.com>
Signed-off-by: Shaun Ruffell <sruffell@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9421 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-09-29 22:00:22 +00:00
Shaun Ruffell
283235686d Move test for DEFINE_SPINLOCK into include/dahdi/kernel.h
The check for DEFINE_SPINLOCK was spread throughout the source tree. If
not defined we can just define it in inlucde/dahdi/kernel.h.  Now
include/dahdi/kernel.h is the only place that references
SPIN_LOCK_UNLOCKED (which breaks lockdep checking if DEFINE_SPINLOCK is
otherwise defined in the kernel).

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Review: https://reviewboard.asterisk.org/r/940/

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9411 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-09-24 22:44:53 +00:00