static int get_mac_address(u32 *high_dword, u32 *low_dword,
u32 search_address, u32 search_length)
{
char key[] = "ethernet_mac";
unsigned int offset;
int i;
offset = search(key, (char *)search_address,
sizeof(key) - 1, search_length);
if (offset == search_length) {
printk(BIOS_DEBUG,
"Error: Could not locate '%s' in VPD\n", key);
return 0;
}
printk(BIOS_DEBUG, "Located '%s' in VPD\n", key);
offset += sizeof(key); /* move to next character */
*high_dword = 0;
/* Fetch the MAC address and put the octets in the correct order to
* be programmed.
*
* From RTL8105E_Series_EEPROM-Less_App_Note_1.1
* If the MAC address is 001122334455h:
* Write 33221100h to I/O register offset 0x00 via double word access
* Write 00005544h to I/O register offset 0x04 via double word access
*/
for (i = 0; i < 4; i++) {
*high_dword |= (get_hex_digit((char *)(search_address + offset))
<< (4 + (i * 8)));
*high_dword |= (get_hex_digit((char *)(search_address + offset + 1))
<< (i * 8));
offset += 3;
}
*low_dword = 0;
for (i = 0; i < 2; i++) {
*low_dword |= (get_hex_digit((char *)(search_address + offset))
<< (4 + (i * 8)));
*low_dword |= (get_hex_digit((char *)(search_address + offset + 1))
<< (i * 8));
offset += 3;
}
return *high_dword | *low_dword;
}
static int
get_hex (int *start)
{
int value = convert_hex_digit (*start);
int try;
*start = readchar (timeout);
while ((try = convert_hex_digit (*start)) >= 0)
{
value <<= 4;
value += try;
*start = readchar (timeout);
}
return value;
}
#if 0
/* Get N 32-bit words from remote, each preceded by a space, and put
them in registers starting at REGNO. */
static void
get_hex_regs (int n, int regno)
{
long val;
int i;
for (i = 0; i < n; i++)
{
int j;
val = 0;
for (j = 0; j < 8; j++)
val = (val << 4) + get_hex_digit (j == 0);
supply_register (regno++, (char *) &val);
}
}