/* Set the base MAC address of the chassis */
static int c3725_burn_mac_addr(c3725_t *router,n_eth_addr_t *addr)
{
m_uint8_t eeprom_ver;
size_t offset;
/* Read EEPROM format version */
cisco_eeprom_get_byte(&router->mb_eeprom,0,&eeprom_ver);
switch(eeprom_ver) {
case 0:
cisco_eeprom_set_region(&router->mb_eeprom,2,addr->eth_addr_byte,6);
break;
case 4:
if (!cisco_eeprom_v4_find_field(&router->mb_eeprom,0xC3,&offset)) {
cisco_eeprom_set_region(&router->mb_eeprom,offset,
addr->eth_addr_byte,6);
}
break;
default:
vm_error(router->vm,"c3725_burn_mac_addr: unable to handle "
"EEPROM version %u\n",eeprom_ver);
return(-1);
}
return(0);
}
/* Callback for MPC860 SPI Transmit */
static void dev_c1700_mpc860_spi_tx_callback(struct mpc860_data *mpc_data,
u_char *buffer,u_int len,
void *user_arg)
{
struct c1700_iofpga_data *d = user_arg;
struct cisco_eeprom *eeprom;
u_char reply_buf[4];
u_int wic_port;
u_int eeprom_offset;
if (d->wic_select & 0x20)
wic_port = 0x10;
else if (d->wic_select & 0x08)
wic_port = 0x20;
else {
#if DEBUG_WIC
vm_error(d->router->vm,"unknown value for wic_select (0x%8.8x)\n",
d->wic_select);
#endif
wic_port = 0;
}
/* No WIC in slot or no EEPROM: fake an empty EEPROM */
if (!wic_port || !(eeprom = vm_slot_get_eeprom(d->router->vm,0,wic_port))) {
memset(reply_buf,0xFF,sizeof(reply_buf));
mpc860_spi_receive(mpc_data,reply_buf,sizeof(reply_buf));
return;
}
/* Read request: 0x03 offset 0x00 0x00 */
eeprom_offset = buffer[1];
reply_buf[0] = 0;
reply_buf[1] = 0;
cisco_eeprom_get_byte(eeprom,eeprom_offset,&reply_buf[2]);
cisco_eeprom_get_byte(eeprom,eeprom_offset+1,&reply_buf[3]);
mpc860_spi_receive(mpc_data,reply_buf,sizeof(reply_buf));
}