+- PINE64 (https://forum.pine64.org)
+-- Forum: PINE A64(+) (https://forum.pine64.org/forumdisplay.php?fid=4)
+--- Forum: Pine A64 Hardware, Accessories and POT (https://forum.pine64.org/forumdisplay.php?fid=32)
+---- Forum: Pi2, Euler and Exp GPIO Ports (https://forum.pine64.org/forumdisplay.php?fid=34)
+---- Thread: GPIO fiq capability (/showthread.php?tid=2700)
GPIO fiq capability - joseph - 11-09-2016
Hello all,
I want to bind the FIQ to a GPIO pin input processing. Is this functionality available on the Pine64?
I see definition of the pending request in drivers/irqchip/irq-sun4i.c,
#define SUN4I_IRQ_FIQ_PENDING_REG(x) (0x20 + 0x4 * x)
but no reference or apparent support in the module.
Should I be looking elsewhere?
Thank you, Joe
RE: GPIO fiq capability - MarkHaysHarris777 - 11-09-2016
Of course its supported ( as it is on any arm device ) but you're going to be hard-pressed to find Allwinner documenting it anywhere.
RE: GPIO fiq capability - squid4t2 - 11-10-2016
(11-09-2016, 05:45 PM)joseph Wrote: Hello all,
I want to bind the FIQ to a GPIO pin input processing. Is this functionality available on the Pine64?
I see definition of the pending request in drivers/irqchip/irq-sun4i.c,
#define SUN4I_IRQ_FIQ_PENDING_REG(x) (0x20 + 0x4 * x)
but no reference or apparent support in the module.
Should I be looking elsewhere?
Thank you, Joe
Hi Joe, try using Duck Duck Go as your search engine. Google gives no return with SUN4I_IRQ_FIQ but Duck returns over 30.
https://duckduckgo.com/?q=SUN4I_IRQ_FIQ&t=hq&ia=web
I hope this will be of use to you. sq
RE: GPIO fiq capability - joseph - 11-10-2016
Marcus, squid4t2 - I appreciate your responses.
squid4t2, thank you for the duckduckgo suggestion. Definitely more to look through.
All the best, Joe