Re: [Xenomai-help] xeno_rtcan_mem.ko, what are it's parameters?

[Wolfgang Grandegger <wg@domain.hid>]

Jan Kiszka wrote:
> Frits de Klark wrote:
>> Hi,
>>
>> to get back on my earlier question: IF the memory mapping might work for
>> me,
>> how should I call it?
>> The PCI card has two CAN ports. Here's (a part of) the output of lspci -vv:
>>
>> Interrupt: pin A routed to IRQ 11
>> Region 0: Memory at e1003000 (32-bit, non prefetchable) [size=128]
>> Region 2: I/O ports at d800 [size=128]
>> Region 3: I/O ports at dc00 [size=128]
>> Region 4: I/O ports at e000 [size=4]
>>
>> What should the insmod command to try if it might work?
> 
> You could try handing region 2 or 3 to the rtcan_isa driver or region 0
> to rtcan_mem. Maybe your adapter actually does 1:1 mapping of the
> SJA1000 address space (it looks like). I just wonder what region 4 is
> doing. Maybe it controls the content of region 0, which may either hold
> the first or the second CAN controller. Just a theory...

To check that, load the mem driver with:

# insmod xeno_rtcan_mem.o mem=0xe1003000 irq=11

maybe there are SJA1000 registers as well. But the extra registers might 
also be there to do a reset, or report some IRQ status.

Wolfgang.