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From: "ariga masahiro" <ariga@link-lab.co.jp>
To: "Gary Thomas" <gary@mlbassoc.com>, "Alok Singh" <alok.singh@broadcom.com>,         "Andrew Lunn" <andrew@lunn.ch>
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Date: Tue, 06 Nov 2007 23:47:00 -0000
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Subject: Re: [ECOS] Can't Connect,TCP CHECKSUM INCORRECT
X-SW-Source: 2007-11/txt/msg00037.txt.bz2

Hello,

I am very sorry.

I am not  familiar using  command diff.
So I send again.
As I said I changed next two functions in 
\packages\devs\eth\smsc\lan91cxx\current\src\if_lan91cxx.c

cyg_uint8 get_data_byte(struct eth_drv_sc *sc)
{
    //20070919
    int sf;

    cyg_uint8 c;
    struct lan91cxx_priv_data *cpd =
        (struct lan91cxx_priv_data *)sc->driver_private;

    if( cpd->data_pos == sizeof(rxd_t) )
    {
        cpd->data_buf = get_data(sc);
        cpd->data_pos = 0;
        //20070919
        sf = 1;
    }
    //20070919 begin
    else{
        sf = 0;
  }
    //20070919 end

    //20070919 begin
//ORG    c = (cpd->data_buf>>(cpd->data_pos*8))&0xFF;
    c = (cpd->data_buf>>(sf*8))&0xFF;

    cpd->data_pos++;
    
    return c;
}

cyg_uint16 get_data_short(struct eth_drv_sc *sc)
{
    cyg_uint16 val;

    val = get_data_byte(sc);
//20071023
    // val |= get_data_byte(sc)<<8;
    val = val<<8 | get_data_byte(sc);
    
    return CYG_LE16_TO_CPU(val);
}

Masahiro Ariga


> On Tue, Nov 06, 2007 at 05:30:26PM +0900, ariga masahiro wrote:
>>
>>>> I only changed coding in retrieving data in BigEndian as I reported to
>>>> you.
>>>> I think others are resolved by Macros of bigendian.
>>
>> Can you let us know what code you changed to retrieve data in
>> Big-endian?
>>
>> Only next two functions. 
> 
> This is nearly impossible to read.
> 
> Please send a unified diff which you generate using the command diff. 
> 
>       Andrew
>

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