Hello, juanba romance wrote: > Hello, all, > I am currently developing a RTDM/xenomai driver for the CANbus chipset > 82527 that i think it could have some interest > it has the next features: > > 1. Specific management for the remote frames CANbus feasibility, it > couple the real-time data bus flow with a user software feedback > to handshake remote frames and update mailbox callback for the > auto-replied messages > 2. Transparent use to push/suck data from the driver using a common > data format > 3. Capability to push a bunch of CANbus messages in a single system > call. The bunch is copied to a kernel domain ring buffer to > guarantee low latencies at the user side. A specific kernel > thread sucks the ring pushing the user request into the chipset > 4. Driver readout using a native RT message queue where the control > and data flow is published > 5. Multichipset capabilities, right now a commercial PC104 board with > two devices is used. The on board CPU is a SBC VIA C3 1GHz > processor softwared with the stack > xenomai-2.3,1/vanilla-2.6.20-15/Adeos-ipipe-1.7-03 > 6. board monitoring through the /proc file system entry > 7. Local Data Transfers controlled with RT-alarms > 8. Virtual support to check applications/driver usage/design, right > now only the chipset is virtualised, but plans to have network > transactions are on going > 9. ISR hardware optimizations focused on the network readout to > gurantee low latencies > 10. Easy porting to other i82527 based on boards > 11. Full transmission operation handling the 16 message object set > > We have in plan also > > 1. Capabilities to filtering/masking the incoming flow at the driver > stage allowing that the same context, using the "xenomai > nomenclature" feed specific threads using some kind of > binding/configuration process. This is an open issue cause i don't > have a clear approach to follow.. > 2. can-festival coupling > > I think this is the full picture, i look forward..
Are you aware that there is already a RT-Socket-CAN driver coming with Xenomai, which has most of the feature you listed above? http://www.rts.uni-hannover.de/xenomai/lxr/source/ksrc/drivers/can/README http://www.xenomai.org/documentation/trunk/html/api/group__rtcan.html There is not yet a driver for the i82527, but I already started to implement it. Wolfgang. _______________________________________________ Xenomai-core mailing list Xenomaiemail@example.com https://mail.gna.org/listinfo/xenomai-core