////////////////////////////////////////////////////////////////////////////////
// print_words
// PURPOSE: Prints the values of size words.
// PARAMS: (IN) u8 *start - starting address.
// (IN) int size - number of words to print.
// RETURNS: Nothing.
////////////////////////////////////////////////////////////////////////////////
void
print_words(u16 const *start,
int size)
{
int x = 1;
while(size > 0)
{
char buf[5];
u16toa(*start++, buf);
itc_printf(buf);
size--;
if(!(x++ % 16))
{
if(size > 0)
{
itc_printf("\r\n");
x = 1;
}
}
else
{
itc_printf(" ");
}
}
itc_printf("\r\n");
}
////////////////////////////////////////////////////////////////////////////////
// print_dwords
// PURPOSE: Prints the values of size dwords.
// PARAMS: (IN) u8 *start - starting address.
// (IN) int size - number of dwords to print.
// RETURNS: Nothing.
////////////////////////////////////////////////////////////////////////////////
void
print_dwords(u32 const *start,
int size)
{
int x = 1;
while(size > 0)
{
itc_printf("%x", *start++);
size--;
if(!(x++ % 8))
{
if(size > 0)
{
itc_printf("\r\n");
x = 1;
}
}
else
{
itc_printf(" ");
}
}
itc_printf("\r\n");
}
////////////////////////////////////////////////////////////////////////////////
// print_bytes
// PURPOSE: Prints the values of size bytes.
// PARAMS: (IN) u8 *start - starting address.
// (IN) int size - number of bytes to print.
// RETURNS: Nothing.
////////////////////////////////////////////////////////////////////////////////
void
print_bytes(u8 const *start,
int size)
{
int x = 1;
while(size > 0)
{
itc_printf("%b", *start++);
size--;
if(!(x++ % 27))
{
if(size > 0)
{
itc_printf("\r\n");
x = 1;
}
}
else
{
itc_printf(" ");
}
}
itc_printf("\r\n");
}
////////////////////////////////////////////////////////////////////////////////
// init_bootp
// PURPOSE: Sends a bootp requests, and listens for response.
// PARAMS: (IN) u32 *ciaddr - Client IP address returned.
// (IN) u32 *siaddr - TFTP or other server address.
// (IN) u32 *giaddr - gateway address.
// (IN) u32 *smask - IP netmask
// RETURNS: 1 for success, 0 for failure.
////////////////////////////////////////////////////////////////////////////////
int
init_bootp(u32 *ciaddr,
u32 *siaddr,
u32 *giaddr,
u32 *smask)
{
u8 bootpacket[BOOTP_PACKET_SIZE + UDPIP_HEADER_SIZE];
int gotreply;
int i = MAX_RETRIES;
u32 stamp = rand();
// Delay a short random amount to space out BOOTP requests from many clients
// booting up at once.
udelay(rand() % 100000);
udelay(rand() % 100000);
fillbootp(bootpacket + UDPIP_HEADER_SIZE, status.macaddr, stamp);
flush_ethernet ();
do
{
// Transmit BOOTP request
udppacket((u16 *)bootpacket,
BOOTP_PACKET_SIZE,
IP_BROADCAST,
0, //we don't know what our IP address is yet
BOOTP_TX_PORT,
BOOTP_RX_PORT,
status.macaddr);
gotreply = listenbootp(stamp, ciaddr, siaddr, giaddr, smask,
(char *)&(status.bootfile));
if (!gotreply)
{
itc_printf(".");
}
} while(!gotreply && i-- > 0);
rx_ethernet_off ();
flush_ethernet ();
if(i <= 0)
{
itc_printf("\r\n");
error_print(BOOTP_TIMEOUT_ERROR);
return 0;
}
return 1;
}
