summaryrefslogtreecommitdiff
path: root/drivers/dahdi/dahdi_dynamic.c
AgeCommit message (Collapse)Author
2011-04-15dahdi: register/unregister devices as opposed to individual spans.Shaun Ruffell
Increasingly, spans are implemented by devices that support more than a single span. Introduce a 'struct dahdi_device' object which explicitly contains multiple spans. This will also allow a cleaner representation of spans and devices in sysfs since order of arrival will not determine the layout of the devices. This also gives the core of dahdi a way to know the relationship between spans. Signed-off-by: Shaun Ruffell <sruffell@digium.com>
2011-01-03dahdi, xpp: dahdi_span_ops.sync_tick should return void.Shaun Ruffell
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'dahdi_copy_string()' -> 'strlcpy()'Shaun Ruffell
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
2011-01-03dahdi_dynamic: Do not depend on BKL for serialization of dspan creation.Shaun Ruffell
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
2011-01-03dahdi_dynamic: Pass the dahdi_dynamic to create/destroy functions.Shaun Ruffell
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
2011-01-03dahdi_dynamic: Do not enable tasklets by default for dynamic_spans.Shaun Ruffell
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
2011-01-03dahdi_dynamic: Use dahdi_span_ops.sync_tick for driving dynamic spans.Shaun Ruffell
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
2011-01-03dahdi_dynamic: Remove tests for KERNEL_VERSION < 2.6.9Shaun Ruffell
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
2011-01-03dahdi_dynamic: dynamic drivers should not reference count themselves.Shaun Ruffell
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
2011-01-03dahdi_dynamic: "dahdi_dynamic_[un]register()" -> ↵Shaun Ruffell
"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
2011-01-03dahdi_dynamic: Replace usecount and dead members with 'struct kref'Shaun Ruffell
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
2011-01-03dahdi_dynamic: Use const pointers for dahdi_dynamic_driver strings.Shaun Ruffell
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
2011-01-03dahdi_dynamic: kmalloc/memset -> kzallocShaun Ruffell
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@9568 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2011-01-03dahdi_dynamic: Trivial removal of 'zaptel' references.Shaun Ruffell
Replaces all the 'z' references to 'd' as appropriate and cleans up any formatting problems that popped up as a result. The intent here is to reduce confusion in the future as someone may wonder what the 'Z's refer to. 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@9567 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-09-24Move test for DEFINE_SPINLOCK into include/dahdi/kernel.hShaun Ruffell
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
2010-09-23dahdi_dynamic: Update copyright.Shaun Ruffell
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@9403 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-07-26dahdi: Move the 'owner' field from dahdi_span to dahdi_span_ops.Shaun Ruffell
One more thing that can be moved out of the per-span structure. git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8986 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-07-26dahdi: Move the callbacks in dahdi_span into its own structure.Shaun Ruffell
Part of preparation for adding additional callbacks to allow board drivers to advertise and support gathering pre-echocan data from hardware echocans. git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8985 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-07-26dahdi: Remove the 'pvt' member from dahdi_span.Shaun Ruffell
The vast majority of board drivers already keep the dahdi_span structure in a driver specific structure. The others were easily converted. This way board drivers can use the container_of macro to find what was previously pointed to by the "pvt" member of the span. One less thing to think about in the span structure. git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8984 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-02-26dahdi_dynamic: Changes to allow to compile against vanilla 2.6.9 kernel.Shaun Ruffell
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8140 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-02-25dahdi_dynamic: Another trivial formatting change.Shaun Ruffell
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8110 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-02-25dahdi_dynamic: trivial checkpatch.pl formatting changes.Shaun Ruffell
Just removing the errors only. I left the warnings for now. git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8104 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2010-02-25dahdi_dynamic: Add TDMoE Multi-Frame support.Shaun Ruffell
Add TDMoE Multi-Frame support as described in the article at the following URL: http://www.thrallingpenguin.com/articles/tdmoe-mf.htm TDMoE-MF is known to be implemented in hardware solutions from Redfone Communications. This patch additionally implements RCU within dahdi_dynamic to decrease lock contention, latency, and context switching. Because of the use of RCU locking, all prior known issues with loading and unloading of the modules are resolved, providing the spans are shutdown with "dahdi_cfg -s". It also contains an attempt, which works, at fixing a kernel change with skb_linearize(). The use of kernel version number does not work with SuSE SLES 10, as it appears they have backported the 2.6.18 change in to their 2.6.16 version. This merges in the work Jbenden did at: http://svn.digium.com/svn/dahdi/team/jbenden/tdmoe-mf@8102 (issue #13483) Patch by: JBenden Reported by: JBenden Tested by: JBenden git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@8103 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2009-06-29dahdi-base: Enable DAHDI to manage the reference counts for the board drivers.Shaun Ruffell
Adds a struct module 'owner' member to the dahdi_span structure and updates all the board drivers to set this member before registering the span. This allows the core of dahdi to maintain the reference counts on the channels itself. (closes issue #10601) Reported by: Matti git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@6794 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2009-06-26dahdi_dynamic: Release the dlock before calling accross modules.Shaun Ruffell
Resolves a hard lock due to a recursive spinlock grab at startup. Reported by: mapacheco (closes issue #15210) git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@6771 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2009-01-26Manipulate the REGISTERED flag with atomic bitops now since the bit is setShaun Ruffell
outside the protection of any locks. git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@5819 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-10-28fix a large number of warnings found by sparse, the kernel code sanity ↵Kevin P. Fleming
checking tool. some of these fixes are non-optimal (casting 'unsigned long' to '__user void *'), but are unavoidable in many cases. started from tzafrir's patch, did most of the work myself. (closes issue #13763) Reported by: tzafrir Patches: sparse_fixes_1.diff uploaded by tzafrir (license 46) git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@5162 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-08-20use the new separate allocation method for channel structures here tooKevin P. Fleming
replace "ZTD" references in channel/span names with "DYN" (closes issue #13302) Reported by: KNK git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4805 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-08-20update code to match version in ZaptelKevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4804 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-08-06last round of license header updates hereKevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4721 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-08-03Change all instances of printk in DAHDI to include a priorityRussell Bryant
(closes issue #11504) Reported by: tzafrir Patches: 20080717__issue11504_dahdi_printk_without_priority.diff uploaded by bbryant (license 36) git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4685 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-07-29make an initial split of dahdi/kernel.h into userspace- and ↵Kevin P. Fleming
kernelspace-specific parts git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4628 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-07-02fix remaining drivers broken by pointer type change in 'struct ↵Kevin P. Fleming
dahdi_span'... wctdm24xxp still broken, will fix in a couple of hours (related to issue #12657) git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4514 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-07-02break up large memory allocations made by digital span drivers into smaller ↵Kevin P. Fleming
ones (one allocation for each dahdi_chan structure, separate from any private structures used by the driver) (closes issue #12657) Reported by: tzafrir git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4513 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-06-20merge modular_ec branch, which adds modular echocan support and lots of ↵Kevin P. Fleming
minor fixes and improvements... seems to work properly, except the usecount on the echocan modules never increments above zero, so they are unloadable when they should not be git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4436 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-05-23Update Linux Support Services copyright references to DigiumMatthew Fredrickson
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4351 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-05-22and with another fell swoop... 2.4 kernel support is gone tooKevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4327 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-05-22and with one fell swoop... devfs support disappearsKevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4326 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-05-21replace Zaptel with DAHDI, ZAPTEL with DAHDI, ZAPATA with DAHDIKevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4322 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-05-21replace zap_ with dahdi_, ZAP_ with DAHDI_Kevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4321 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-05-21replace ZT_ with DAHDI_, zt_ with dahdi_Kevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4320 a0bf4364-ded3-4de4-8d8a-66a801d63aff
2008-05-21rename modules from zt prefixes to dahdi prefixesKevin P. Fleming
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@4319 a0bf4364-ded3-4de4-8d8a-66a801d63aff
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-02 16:52:44 +0000