Re: [ECOS] Reading flash config value from application

[Andre-John Mas <ajmas at sympatico dot ca>]

Hi,

I am not sure what I am doing wrong, but CYGACC_CALL_IF_FLASH_CFG_OP is not finding the value (returning false). I am trying to read the "bootp_my_ip" value. Every time the card restarts the redboot sees the right values, so it doesn't seem to be an issue of data getting over-written.

Below are the modifications I made to network_support.c in the net/common package:

#include <cyg/hal/hal_if.h>

// For fetching the IP info from RedBoot
#include <cyg/hal/hal_if.h>
#ifndef CONFIG_IP
#define CONFIG_IP 5
#endif

typedef unsigned char ip_addr_t[4];

//
// taken from redboot ... net/net_io.c
//
static bool
flash_get_IP(char *id, ip_addr_t *val)
{
  ip_addr_t my_ip[4];
  int i;

  if (CYGACC_CALL_IF_FLASH_CFG_OP(CYGNUM_CALL_IF_FLASH_CFG_GET, id, &my_ip, CONFIG_IP))
  {
    diag_printf("flash_get_IP %s\n", my_ip);
    if (my_ip[0] != 0 || my_ip[1] != 0 ||
        my_ip[2] != 0 || my_ip[3] != 0) {
        // 'id' is set to something so let it override any static IP
        for (i=0; i<4; i++)
          (*val)[i] = my_ip[i];
        }
    }
    else
    {
      return false;
    }
}

and then in the init_all_networks_interfaces() function I have:

struct in_addr card_ip;

flash_get_IP("bootp_my_ip", card_ip.s_addr);

Any ideas what I might be doing wrong?

Andre



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