drivers/net/hplance.h

   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 */