Re: [lwip-users] Hardware - level for netif_remove()

[Martin Persich]

Hi Christian,
you can't modify LwIP "netif" file for close of Ethernet hardware, I think.
It is sufficiet only to modify function "low_level_output" in "ethernetif.c"
file. You can add condition in the first line of this function - if ethernet
hardware is not running - then immediately return. LwIP dont't need any
additional information about it. This is the same as problem on LAN, when
data packet is not deliverer to target device, I think.
And then you need to stop reading of incomming packet from MACB in "ETHINT"
task. But the main problem is in original "macb.c" file from Atmel Software
Framework (V 1.7.0), by my mind. If you disabling MACB hardware (function
"vDisableMACBOperations" in "macb.c" file), there is a problem with next
callig of "xMACBInit" function. Many functions of MACB driver ("macb.c")
uses local variables and there is no way to clear this variables after new
initialization. I have my own version of MACB driver in this moment which
solve this problems and allows restart of autonegotiation process if
ethernet cable is unplugged and then conected to switch with another
parameters (speed, FDX/HDX, ...). I believe that version Atmel SF 1.8.0 will
be OK !
Best Regards
Martin Persich




----- Original Message ----- 
From: "Christian Steffen" <address@hidden>
To: "Mailing list for lwIP users" <address@hidden>
Sent: Friday, May 07, 2010 7:58 AM
Subject: Re: [lwip-users] Hardware - level for netif_remove()


I know this function. But this function don't call any hardware function
stubs. When I add an Interface with netif_add() I refer a init routine
and a input routine. For the AVR32 Port this are ethernetif_init() and
ethernetif_input(). In the netif_remove() is no call to a similar
ethernetif_remove().

In the Context of lwIP, FreeRTOS and AVR32 starts a thread, that puts
the incomming data from MAC to the lwIP. And this task running along
when I remove this Interface.

Mit freundlichen Grüßen
Christian Steffen

Am 06.05.2010 21:52, schrieb Martin Velek:
> Hi,
>
> it should be. Check this link -
> http://www.nongnu.org/lwip/netif_8c.html#9c6e541f0c184e1ea61a5cd8afe3e979
>
> On 6 May 2010 09:21, Christian Steffen
> <address@hidden>  wrote:
>
>> Hi,
>>
>> for my application it's necessary to close the Ethernet hardware.
>> The initialisation routine is called by netif_add. Is there a responding
>> routine in netif_remove, that I have overlook?
>>
>> I know, the ethernetif.c is a portable file of the AVR32 port and so my
>> problem :) . But the netif.c is a core file and I want modify the core
files
>> as less as possible.
>>
>


_______________________________________________
lwip-users mailing list
address@hidden
http://lists.nongnu.org/mailman/listinfo/lwip-users