/**
* write_eeprom_reg - write specified value into specified register in EEPROM
*/
static int write_eeprom_reg(u8 value, u8 reg)
{
int ret;
/* enable erasing/writing */
ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWEN, reg);
if (ret)
goto done;
/* erase the eeprom reg */
ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_ERASE, reg);
if (ret)
goto done;
/* write the eeprom reg */
smc911x_reg_write(E2P_DATA, value);
ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_WRITE, reg);
if (ret)
goto done;
/* disable erasing/writing */
ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_EWDS, reg);
done:
return ret;
}
/**
* read_eeprom_reg - read specified register in EEPROM
*/
static u8 read_eeprom_reg(u8 reg)
{
int ret = do_eeprom_cmd(E2P_CMD_EPC_CMD_READ, reg);
return (ret ? : smc911x_reg_read(E2P_DATA));
}
/**
* read_eeprom_reg - read specified register in EEPROM
*/
static u8 read_eeprom_reg(struct eth_device *dev, u8 reg)
{
int ret = do_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ, reg);
return (ret ? : smc911x_reg_read(dev, E2P_DATA));
}
int __declspec(dllexport) install(struct unit *unit, char *opts) {
int i;
struct board *board;
struct nic *sp;
struct dev *dev;
unsigned short ioaddr;
unsigned short irq;
unsigned short eeprom[0x100];
// Check license
if (license() != LICENSE_GPL) kprintf(KERN_WARNING "notice: eepro100 driver is under GPL license\n");
// Determine NIC type
board = lookup_board(board_tbl, unit);
if (!board) return -EIO;
unit->vendorname = board->vendorname;
unit->productname = board->productname;
// Get NIC PCI configuration
ioaddr = (unsigned short) get_unit_iobase(unit);
irq = irq = (unsigned short) get_unit_irq(unit);
// Enable bus mastering
pci_enable_busmastering(unit);
// Allocate private memory
sp = kmalloc(sizeof(struct nic));
if (sp == NULL) return -ENOMEM;
memset(sp, 0, sizeof(struct nic));
// Read the station address EEPROM before doing the reset.
// Nominally his should even be done before accepting the device, but
// then we wouldn't have a device name with which to report the error.
// The size test is for 6 bit vs. 8 bit address serial EEPROMs.
{
unsigned short sum = 0;
int j;
int read_cmd, ee_size;
if ((do_eeprom_cmd(ioaddr, EE_READ_CMD << 24, 27) & 0xffe0000) == 0xffe0000) {
ee_size = 0x100;
read_cmd = EE_READ_CMD << 24;
} else {
ee_size = 0x40;
read_cmd = EE_READ_CMD << 22;
}
for (j = 0, i = 0; i < ee_size; i++) {
unsigned short value = do_eeprom_cmd(ioaddr, read_cmd | (i << 16), 27);
eeprom[i] = value;
sum += value;
if (i < 3) {
sp->hwaddr.addr[j++] = (unsigned char) (value % 0xFF);
sp->hwaddr.addr[j++] = (unsigned char) (value >> 8);
}
}
if (sum != 0xBABA) kprintf(KERN_WARNING "eepro100: Invalid EEPROM checksum %#4.4x!\n", sum);
}
