Re: [ECOS] How to correctly run SMSC LAN91C111 Driver by interrupt

[Gary Thomas <gary@mlbassoc.com>]

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ariga masahiro wrote:
> Hi everyone,
> 
> Someone please help me.
> 
> I am trying to run SMSC LAN91C111 Ethernet Driver by interrupt
> on own board.
> 
> I studied source if_lan91cxx.c and found next switching context
> 
> #ifndef CYGPKG_IO_ETH_DRIVERS_STAND_ALONE,
> 
> and concluded I must make CYGPKG_IO_ETH_DRIVERS_STAND_ALONE  '0'
> in order to regisiter ISR etc.
> 
> I registered ISR into Vector Table.
> 
> When I Built,I confronted next errors.
> /ecos-c/cygwin/home/LINK/inserter20070529-1_interrupt/untitled_install/lib/extras.o:
> In function `do_exec':
> /opt/ecos/ecos-2.0/packages/hal/sh/arch/v2_0/src/redboot_linux_exec.c:114:
> undefined reference to `_eth_drv_dsr'
> /opt/ecos/ecos-2.0/packages/hal/sh/arch/v2_0/src/redboot_linux_exec.c:83:
> undefined reference to `_eth_drv_funs'
> 
> I infered they are concerned with eth_drv.c,and found eth_drv.c was
> included in next three directotries in eCos source tree.
> C:/cygwin/opt/ecos/ecos-2.0/packages/io\eth/v2_0/src/lwip/eth_drv.c
> C:/cygwin/opt\ecos/ecos-2.0/packages/io\eth/v2_0/src/net/eth_drv.c
> C:/cygwin/opt/ecos/ecos-2.0/packages/io\eth/v2_0/src/stand_alone/eth_drv.c
> 
> I am convinced that because I did not compile stand_alone,I confronted
> the errors.
> 
> So,first I tried to include /net/eth_drv.c.
> I found in order to include /net/eth_drv.c I must make CYGPKG_NET
> available.
> Then I was stuck in the mud.
> I confronted Conflicting Errors continuously and couldn't even build
> redboot.
> I abandoned.
> 
> Then, I next tried to include /lwip/eth_drv.c.
> In order to do that,I changed option parameter a bit.
> I commented "active_if" line.
> 
> cdl_component CYGPKG_IO_ETH_DRIVERS_LWIP
> ##        active_if     CYGPKG_NET_LWIP
> 
> Then I could include /lwip/eth_drv.c,
> but confronted next errors.
> src/lwip/io_eth_eth_drv.o
> /opt/ecos/ecos-2.0/packages/io/eth/v2_0/src/lwip/eth_drv.c
> /opt/ecos/ecos-2.0/packages/io/eth/v2_0/src/lwip/eth_drv.c:70:29:
> cyg/kernel/kapi.h: No such file or directory
> /opt/ecos/ecos-2.0/packages/io/eth/v2_0/src/lwip/eth_drv.c:89: parse
> error before "delivery"
> /opt/ecos/ecos-2.0/packages/io/eth/v2_0/src/lwip/eth_drv.c:89: warning:
> type defaults to `int' in declaration of `delivery'
> 
> I am in predicament.
> 
> Please enlighten me what is correct way to run SMSC LAN91C111 Ethernet
> Driver by interrupt.

It appears you are trying to enable these things in RedBoot.  RedBoot
is a polled environment and has its own network stack, so neither of
the actions described above are appropriate.

If you want to build an eCos application - not RedBoot - that uses your
target hardware, with networking using interrupts, you need an eCos
kernel configured for this purpose:

  % ecosconfig new <target> net
  % ecosconfig tree
  % make

A quick reference to the documentation (the Getting Started guide has
a section on how to build complete applications) would be a good starting
point:
  http://ecos.sourceware.org/docs-latest/


- --
- ------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
- ------------------------------------------------------------
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