Philippe Gerum wrote:
> On Mon, 2010-08-09 at 13:50 +0200, Gilles Chanteperdrix wrote:
>> Philippe Gerum wrote:
>>> On Mon, 2010-08-09 at 02:54 -0700, Bob Feretich wrote:
>>>> I am converting my second driver to RTDM. This one receives a
>>>> negativing going edge triggered interrupt on GPIO133 of the OMAP3
>>>> chip.
>>>>
>>>> I have...
>>>> ret = rtdm_irq_request(&adis_data_rdy_irq_handle, irq,
>>>> adis_data_rdy_irq_handler,
>>>> RTDM_IRQTYPE_EDGE,
>>>> "asuspidvr", ctx);
>>>> then...
>>>> ret = rtdm_irq_enable(&adis_data_rdy_irq_handle);
>>>>
>>>> but the interrupt handler is never invoked.
>>>>
>>>> cat /proc/xenomai/irq shows:
>>>> IRQ CPU0
>>>> 37: 15815 [timer]
>>>> 39: 0 asuspidvr
>>>> 48: 0 asuspidvr
>>>> 91: 0 asuspidvr
>>>> 293: 0 asuspidvr
>>>> 418: 0 [virtual]
>>>>
>>>> IRQ 293 in the interrupt that should be happening.
>>>>
>>>> I can see the pulses on the input pin and the non-rt version of the
>>>> driver sees the interrupts, so that excludes hardware issues and
>>>> u-boot pin configuration issues.
>>>>
>>>> Any suggestions?
>>>> Regards,
>>>> Bob Feretich
>>>>
>>>>
>>>> __
>>> For some reason, that IRQ line may not be properly enabled by the core
>>> code. Could you introduce this patch? If a valid routine is reported in
>>> the kernel log message, you could locate it by address, from a kernel
>>> image objdump.
>> There may also be more to do than enabling the irq line, such as
>> programming the hardware to enable irq for this gpio, set the type
>> (edge, level) and so on. You can try and call request_irq, then free_irq
>> before calling rtdm_request_irq to see if request_irq would trigger some
>> actions that rtdm_request_irq does not trigger.
>>
>
> If you mean that beagle_twl_gpio_setup() still has to be called at this
> point, then we probably have something broken at ipipe level.
Yes, maybe, I meant that Bob should try to call request_irq and free_irq
before rtdm_request_irq, and if it work, we would have to find why and
fix the I-pipe.
--
Gilles.
_______________________________________________
Xenomai-help mailing list
[email protected]
https://mail.gna.org/listinfo/xenomai-help
