The new FXS chip supports two ports for each chip and hence we once
again need to look at hardware differently.
Struct unit_description includes information about all chips/port in a
specific module.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Prepare for different types of commands: replace XFRAME_NEW_CMD with
XFRAME_NEW_REG_CMD in some places.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Currently we only have REG (register) commands. Refactor it to allow
MEM (memory) commands.
* A common header
* Don't assume a constant size.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
The xpp modules use time differences for various statistics. In one case
xpp_usb creates a histogram of the time it took the system to send USB
packets (URBs). The time difference is used (after adjustments) as an
index to that array.
However if the clock happens to go back at that exact point in time, we
get to write to an arbitrary negative index in this array.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
* Drop PCM during sluggish events:
- Drop both rx/tx (was only tx)
- Drop almost all pcm until sluggishness stops (used to drop only
single pcm each time).
- Renamed: "drop_next_pcm" -> "drop_pcm" (to match new semantics)
- Still allow "keep alive" PCM so Astribank will not reset FXS high-voltage.
The "sluggish_pcm_keepalive" parameter set the rate (1/50 by default)
- Added rx/tx drop statistics counters
- Removed "pcm_tx_drops" (replaced by new statistics counters)
* Also improved format of /proc/xpp/XBUS-*/xpp_usb:
- Show cummulative number of sluggish events.
- Clearly show range (in usec) of usb_tx_delay[]
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
New USB firmware that fix mis-reporting of the number of channels (or
rather: licenses) in the Astribank when a 2FXS6FXO module is used in
conjunction with another module.
USB_FW.hex: rev. 11452
USB_FW.201.hex: rev. 11453
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Commit d5db139ab3764640e0882a1746e7b9fdee33fd87 "module: make
module_refcount() a signed integer." included in 3.19 makes this
condition slightly more complex.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
With commit (af3cd13501 "lib/string.c: remove strnicmp()") [1] dahdi can no
longer call strnicmp directly. strncasecmp was added into lib/string.c in kernel
version 2.6.22 so we'll map calls to strncasecmp to strnicmp for any kernel
before that.
This is necessary to compile against kernels >= 4.0.
[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af3cd13501
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Latest Astribank firmware (as of Rev. 11426 also supports some newer
hardware types, which will have the ID 203. Anyone installing this newer
version will now have 203 as an alias, but older versions will not have
it.
New firmware that includes a better way to identify hardware modules
type that does not require multiplexers.
This is firmware file FPGA_1161.201.hex rev. 11426.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
This makes the open symmetrical with the close. It is also considered good
practice to not call through callbacks with spinlocks held.
I modified all the drivers where I could not tell whether it was necessary to
hold the chan->lock with interrupts disabled to simply take the lock inside the
callback.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
re-organize calls so worker_reset() isn't called twice
(was called from xbus_disconnect() and worker_destroy())
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
* Maintain a "shutting_down" flag per-xbus
* Use it to prevent xbus dereferencing (via xbus_get()/xbus_put())
during an xbus shutdown.
* Also, remove xbus from global array earlier.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
waitfor_xpds xbus sysfs file should not take an xbus refcount:
* It is called from sysfs which maintain its own device refcount.
* If put_xbus() calls xbus_destroy() than down the call chain it will
try to release an object that is held by sysfs.
* This will create a deadlock.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Some architectures, like arm, do not automatically pull in the definitions for
kzalloc and friends. This allows DAHDI to build on those platforms.
Originally reported to the asterisk-users mailing list here
http://lists.digium.com/pipermail/asterisk-users/2014-February/282338.html
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Fixes regression from bb63d03bba (before
v2.7.0). This failed to set the PCM mask on a CAS span when
DAHDI_AUDIO_NOTIFY was not set.
As the first channel of each xbus would be enabled (for
synchronization), a single call may still have passed.
This patch sets the PCM mask on any CAS channel explicitly.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
* It's currently harmless (just re-run the pre/post XPD registrations)
* But it's cleaner this way (as with xbus_register_dahdi_device())
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
XPP devices have implicit support for device registration and
unregistration. Even though it is only used for the legacy (non-hotplug)
configuration case, we still prefer to make it explicit.
This attribute would later allow a simpler implementation of the user
space (xpp-specific) tool dahdi_registration.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
In an Astribank with >= 2 PRI ports, switching from E1 to T1 at run-time
may fail at the DAHDI_CHANCONFIG ioctl on the first channel in a span,
That is, on first run of dahdi_cfg, it fails on second span, on second:
it fails on third span, etc.
The code clears the D-channel information on the DAHDI_CHANCONFIG call
for the first channel in the span.
However The code tested for the global "channo" rather than the per-span
"chanpos" to check for the first channel in the span. This the test
failed.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
* dahdi_registration writes multiple times to:
/sys/bus/astribanks/devices/*/*/span
* In some race cases this resulted in corruption and eventual kernel
panic.
* Until migration to "assigned-spans" is complete:
- Accept and ignore multiple "dahdi registrations" from user-space.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
* We didn't handle proper E1/T1 transitions after device registration.
* Fix SPAN_REGISTERED(xpd):
It now checks for DAHDI_FLAGBIT_REGISTERED as well, as this flag is
set/clear by assign/unassign.
* From set_pri_proto():
- Always free/allocate channels
- Always call dahdi_init_span()
* Improve phonedev_cleanup() safety:
- NULL pointers after free.
- Zero number of channels at the end.
* Refactor channel allocation out of phonedev_init():
- Into phonedev_alloc_channels()
- Also called from xpd_init_span() to prevent duplicated logic.
- And called from set_pri_proto() to prevent our bug.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Commit 74e949c33a exported the module
variable dahdi.auto_assigned_spans. However this is not a good name.
This commit reverts the export and replaces it with a new function to
get the value of the variable.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
* Set it to 0 by default (as we use dahdi.auto_assign_spans now)
* Make it readonly (no runtime changes)
* Warn during startup if it was forced to 1
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
Instead, use the inverse of dahdi.auto_assign_spans value.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
drv_attrs was fully removed from the bus structure in upstream commit
e18945b159a1cdbc031f1d3b0b7e515a33bdcbf7 which was merged into 3.13.
This is necessary to compile against linux kernel version 3.13.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Rename as terminology has changed. No change in kernel interface.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
The driver assumes that the first slot is not empty. If this is not the
case, synchronization will not work.
Fail loading if this assertion does not hold.
Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
