Em Fri, 28 Aug 2009 09:30:42 -0300 Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx> escreveu: > Em Fri, 28 Aug 2009 12:50:27 +0200 (CEST) > Patrick Boettcher <pboettcher@xxxxxxxxxxxxxx> escreveu: > > > Hi Mauro, > > > > On Fri, 28 Aug 2009, Mauro Carvalho Chehab wrote: > > > > > Em Fri, 28 Aug 2009 00:46:28 -0300 > > > Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx> escreveu: > > > > > >> So, we need a sort of TODO list for IR changes. A start point (on a random > > >> order) would be something like: > > >> > > >> 2) Implement a v4l handler for EVIOCGKEYCODE/EVIOCSKEYCODE; > > >> 3) use a different arrangement for IR tables to not spend 16 K for IR table, > > >> yet allowing RC5 full table; > > >> 4) Use the common IR framework at the dvb drivers with their own iplementation; > > >> 5) Allow getkeycode/setkeycode to work with the dvb framework using the new > > >> methods; > > > > > > Ok, I have a code that handles the above for dvb-usb. Se enclosed. It turned to be > > > simpler than what I've expected originally ;) > > > > Yeah, this is due to the nature of modularity of dvb-usb. > > Yes, but I was afraid that we would need to use a different struct for IR's. > This feature is already available for years at V4L, but the tables needed to > use scancode as their indexes to use the default handlers (I'm not sure, but > afaik, in the past there weren't ways to override them). > > > Saying that, all > > drivers which have (re)implemented IR-handling needs to ported as well. Or > > included in dvb-usb :P . > > My suggestion is to port the current implementation to ir-common.ko. This > module is not dependent of any other V4L or DVB specifics and has already > some code to handle GPIO polling based and GPIO IRQ based IR's. It contains > some IR tables for IR's that are used also on dvb-usb, like Hauppauge IR > keycodes. > > Yet, we will need first to change ir-common.ko, since it is currently using the > tables indexed by a 7bit scancode (due to size constraints, V4L code discards > one RC5 byte), but this is already on our todo list (due to keycode > standardization). Ok, I've did several changes on both V4L and dvb-usb IR implementations. They scancode tables are now implemented at the same way, at: http://linuxtv.org/hg/~mchehab/IR I've also added there the current version of the getkeycode/setkeycode patch. Ah, the v4l2-apps/util/Makefile will now generate the scancode userspace tables for DVB IR's as well (currently, we have 85 IR layouts generated from source files). What's still missing: - For now, V4L is still using internally the old decoding process, based on the 7bit array of keycode. - I haven't yet added some extra empty data at dvb scancode tables; - although they're using the same structs, the code is still different. Please review. Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
