linux/drivers/net/ethernet/amd/hplance.h
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   1/* Random defines and structures for the HP Lance driver.
   2 * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
   3 * Based on the Sun Lance driver and the NetBSD HP Lance driver
   4 */
   5
   6/* Registers */
   7#define HPLANCE_ID              0x01            /* DIO register: ID byte */
   8#define HPLANCE_STATUS          0x03            /* DIO register: interrupt enable/status */
   9
  10/* Control and status bits for the status register */
  11#define LE_IE 0x80                                /* interrupt enable */
  12#define LE_IR 0x40                                /* interrupt requested */
  13#define LE_LOCK 0x08                              /* lock status register */
  14#define LE_ACK 0x04                               /* ack of lock */
  15#define LE_JAB 0x02                               /* loss of tx clock (???) */
  16/* We can also extract the IPL from the status register with the standard
  17 * DIO_IPL(hplance) macro, or using dio_scodetoipl()
  18 */
  19
  20/* These are the offsets for the DIO regs (hplance_reg), lance_ioreg,
  21 * memory and NVRAM:
  22 */
  23#define HPLANCE_IDOFF 0                           /* board baseaddr */
  24#define HPLANCE_REGOFF 0x4000                     /* lance registers */
  25#define HPLANCE_MEMOFF 0x8000                     /* struct lance_init_block */
  26#define HPLANCE_NVRAMOFF 0xC008                   /* etheraddress as one *nibble* per byte */
  27