LinuxPPC-Dev Archive on lore.kernel.org

* Re: request_8xxirq
From: Tiago Dall'Agnol @ 2005-08-01 13:25 UTC (permalink / raw)
  To: Alex Zeffertt; +Cc: linuxppc-embedded
In-Reply-To: <20050801140407.5b6e4d36.ajz@cambridgebroadband.com>

Hi Alex

All right. But where are request_8xxirq? That's my doubt.

Thank you,
Tiago

Alex Zeffertt wrote:

>On Fri, 29 Jul 2005 14:01:21 -0300
>"Tiago Dall'Agnol" <tdallagnol@parks.com.br> wrote:
>  
>
>>But this code doesn't help to find request_8xxirq. It just do the 
>>opposite. This code defines request_irq to be request_8xxirq when 
>>CONFIG_8xx is defined. But where is located the implementation of 
>>request_8xxirq?
>>
>>    
>>
>
>See the code snippet in my last email.  The C preprocessor replaces 'int request_irq(...' with 'int
>request_8xxirq(...' prior to compilation.
>
>
>  
>
>>Alex Zeffertt wrote:
>>
>>    
>>
>>>Maybe you're using a really old kernel.  In linux-2.4.4 it's in
>>>arch/ppc/kernel/irq.c:
>>>
>>>-- snip --
>>>#if (defined(CONFIG_8xx) || defined(CONFIG_8260))
>>>/* Name change so we can catch standard drivers that potentially mess up
>>>* the internal interrupt controller on 8xx and 8260.  Just bear with me,
>>>* I don't like this either and I am searching a better solution.  For
>>>* now, this is what I need. -- Dan
>>>*/
>>>#define request_irq	request_8xxirq
>>>
>>>...
>>>...
>>>...
>>>
>>>int request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *),
>>>	unsigned long irqflags, const char * devname, void *dev_id)
>>>{
>>>--/snip --
>>>
>>>
>>>I don't know why it was done like this....
>>>
>>>Alex
>>>
>>>
>>>On Fri, 29 Jul 2005 10:52:33 -0300
>>>"Tiago Dall'Agnol" <tdallagnol@parks.com.br> wrote:
>>>
>>> 
>>>
>>>      
>>>
>>>>Thank you Alex.
>>>>
>>>>But in my linux, this is different.
>>>>What I have in that file is just
>>>>
>>>>extern int request_8xxirq(unsigned int irq,
>>>>              void (*handler)(int, void *, struct pt_regs *),
>>>>              unsigned long flags,
>>>>              const char *device,
>>>>              void *dev_id);
>>>>
>>>>And the request_8xxirq is declared as a
>>>>
>>>>EXPORT_SYMBOL(request_8xxirq);
>>>>
>>>>in arch/ppc/kernel/ppc_ksyms.c.
>>>>
>>>>I already tried to find out where the code that implements the function 
>>>>is located, but it seems that it doesn't exist in my distribuction. 
>>>>Maybe is it a "binary version"?
>>>>
>>>>Any other information will be apreciated ;-)
>>>>
>>>>Best Regards,
>>>>Tiago
>>>>
>>>>Alex Zeffertt wrote:
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>In linux-2.4 it's in 
>>>>>
>>>>>	include/asm-ppc/mpc8xx.h
>>>>>
>>>>>-- snip --
>>>>>#define request_8xxirq request_irq
>>>>>--/snip --
>>>>>
>>>>>And request_irq is in arch/ppc/kernel/irq.c
>>>>>
>>>>>Alex
>>>>>
>>>>>On Fri, 29 Jul 2005 10:07:58 -0300
>>>>>"Tiago Dall'Agnol" <tdallagnol@parks.com.br> wrote:
>>>>>
>>>>>
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I had some problems with irq in my embedded system. I'm interested in 
>>>>>>this function source code, but I didn't find it in my linux distribuction?
>>>>>>
>>>>>>Does anyone know where I can find it?
>>>>>>
>>>>>>Thanks a lot
>>>>>>Tiago
>>>>>>
>>>>>>Manish Joshi wrote:
>>>>>>
>>>>>>  
>>>>>>
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>I am working on an old code which uses  request_8xxirq() call which I 
>>>>>>>can't find in latest kernel.
>>>>>>>Has this been replaced by something else ?
>>>>>>>
>>>>>>>I see the references on net about replacing request_8xxirq()  with 
>>>>>>>request_irq(). Can I do it ?
>>>>>>>
>>>>>>>TIA,
>>>>>>>Manish
>>>>>>>
>>>>>>>
>>>>>>>------------------------------------------------------------------------
>>>>>>>Start your day with Yahoo! - make it your home page 
>>>>>>><http://us.rd.yahoo.com/evt=34442/*http://www.yahoo.com/r/hs>
>>>>>>>
>>>>>>>------------------------------------------------------------------------
>>>>>>>
>>>>>>>_______________________________________________
>>>>>>>Linuxppc-embedded mailing list
>>>>>>>Linuxppc-embedded@ozlabs.org
>>>>>>>https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>>>>>>>
>>>>>>>    
>>>>>>>
>>>>>>>         
>>>>>>>
>>>>>>>              
>>>>>>>
>>>>>>-- 
>>>>>>Tiago Dall'Agnol
>>>>>>Pesquisa e Desenvolvimento
>>>>>>Tel.: +55.51.470.05.64
>>>>>>Fax.: +55.51.470.05.70
>>>>>>e-mail: tdallagnol@parks.com.br
>>>>>>www.parks.com.br
>>>>>>
>>>>>>_______________________________________________
>>>>>>Linuxppc-embedded mailing list
>>>>>>Linuxppc-embedded@ozlabs.org
>>>>>>https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>>>>>>  
>>>>>>
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>-- 
>>>>   
>>>>
>>>>        
>>>>
>>> 
>>>
>>>      
>>>
>>-- 
>>Tiago Dall'Agnol
>>Pesquisa e Desenvolvimento
>>Tel.: +55.51.470.05.64
>>Fax.: +55.51.470.05.70
>>e-mail: tdallagnol@parks.com.br
>>www.parks.com.br
>>    
>>
>
>  
>

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