From: Stefan Kisdaroczi <kisda@domain.hid>
To: Shashank Bhatia <shashank.bhatia@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Interrupt service routine problem
Date: Tue, 26 May 2009 13:05:44 +0200 [thread overview]
Message-ID: <4A1BCD08.8080505@domain.hid> (raw)
In-Reply-To: <200905261113.24697.shashank.bhatia@domain.hid>
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Shashank Bhatia schrieb:
> Thanks a lot, i got my ISR working. I was also looking for some tutorial on
> RTDM, do you have any source for it ?
this helped me to implement a rtdm driver:
1) captain.at: Hard Real Time Driver Example Tutorial with MMAP using the RTDM [1]
-> simple examples
2) Ondrej Cevan: Installation and Implementation of Xenomai on an Industrial
Component and Porting a Driver for an Industrial IO-Card to the Xenomai
Infrastructure [2]
-> See chapter 4 "Linux Driver" and Chapter 5 "Xenomai RTDM Driver"
3) Xenomai Source: ksrc/drivers/*
[1] http://www.captain.at/xenomai-real-time-driver-example.php
[2] http://stud3.tuwien.ac.at/~e0226686/xenomai/xenomai_implementation.pdf
good luck
kisda
> Thanks ,
> Shashank
>
>
>
> On Mon May 25 2009 07:07:45 pm you wrote:
>> Hi,
>>
>> the rt_intr_* functions are disabled by default in the kernel configuration
>> [1].
>>
>> You can enable them here:
>> Real-time subsystem -> Interfaces -> Native API -> Interrupts
>>
>> For device drivers its suggested that you use the RTDM skin and not the
>> rt_intr_* calls from the native API.
>>
>> kisda
>>
>> [1] https://mail.gna.org/public/xenomai-help/2006-07/msg00197.html
>>
>> Shashank Bhatia schrieb:
>>> Dear All,
>>>
>>> I was trying to make a simple kernel module, and was unable to insert it
>>> into the kernel space. The code and Error messages are provided
>>> hereunder:
>>>
>>>
>>> Code:
>>> #include <native/task.h>
>>> #include <native/timer.h>
>>> #include <native/intr.h>
>>>
>>> #define STACK_SIZE 0
>>>
>>> RT_INTR isrDesc;
>>>
>>>
>>> int isrKbdHandler(struct xnintr* _idesc) {
>>>
>>>
>>> printk("module: catch a key\n");
>>>
>>> return RT_INTR_PROPAGATE;
>>>
>>> }
>>>
>>>
>>>
>>> int init_module (void) {
>>>
>>> printk("module: Init\n");
>>> rt_intr_create(&isrDesc, "kbdisr", (unsigned)1, &isrKbdHandler, NULL,
>>> 0); rt_intr_enable(&isrDesc);
>>>
>>>
>>> return 0;
>>> }
>>>
>>>
>>>
>>> void cleanup_module (void) {
>>>
>>>
>>> rt_intr_delete(&isrDesc);
>>>
>>> printk("module: exit\n");
>>> }
>>>
>>> MODULE_LICENSE("GPL");
>>>
>>>
>>>
>>>
>>> Makefile:
>>>
>>>
>>> obj-m = module.o
>>>
>>>
>>> KDIR = /lib/modules/$(shell uname -r)/build
>>> PWD = $(shell pwd)
>>> EXTRA_CFLAGS = -I/usr/xenomai/include -I/usr/include/
>>> default:
>>> $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
>>>
>>> clean:
>>> rm -f *.o *.ko *.mod.c *symvers *~
>>>
>>>
>>>
>>> Error message:
>>> make -C /lib/modules/2.6.25.11-default/build
>>> SUBDIRS=/home/bhatia/rtprog/interupt modules
>>> make[1]: Entering directory `/usr/src/linux-2.6.25.11'
>>> CC [M] /home/bhatia/rtprog/interupt/module.o
>>> Building modules, stage 2.
>>> MODPOST 1 modules
>>> WARNING: "rt_intr_enable" [/home/bhatia/rtprog/interupt/module.ko]
>>> undefined! WARNING: "rt_intr_create"
>>> [/home/bhatia/rtprog/interupt/module.ko] undefined! WARNING:
>>> "rt_intr_delete" [/home/bhatia/rtprog/interupt/module.ko] undefined! CC
>>> /home/bhatia/rtprog/interupt/module.mod.o
>>> LD [M] /home/bhatia/rtprog/interupt/module.ko
>>> make[1]: Leaving directory `/usr/src/linux-2.6.25.11'
>>>
>>>
>>>
>>> Error while insmoding:
>>> insmod: error inserting './module.ko': -1 Unknown symbol in module
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Thanks and Regards,
>>>
>>> Shashank
>>>
>>> -------------------------------------
>>> Hi-Tech Gears Limited, Gurgaon, India
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Xenomai-help mailing list
>>> Xenomai-help@domain.hid
>>> https://mail.gna.org/listinfo/xenomai-help
>
>
>
> -------------------------------------
> Hi-Tech Gears Limited, Gurgaon, India
>
>
>
>
>
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prev parent reply other threads:[~2009-05-26 11:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-25 12:06 [Xenomai-help] Interrupt service routine problem Shashank Bhatia
2009-05-25 13:37 ` Stefan Kisdaroczi
2009-05-26 5:43 ` Shashank Bhatia
2009-05-26 11:05 ` Stefan Kisdaroczi [this message]
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