1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Random defines and structures for the HP Lance driver. 3 * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk> 4 * Based on the Sun Lance driver and the NetBSD HP Lance driver 5 */ 6 7 /* Registers */ 8 #define HPLANCE_ID 0x01 /* DIO register: ID byte */ 9 #define HPLANCE_STATUS 0x03 /* DIO register: interrupt enable/status */ 10 11 /* Control and status bits for the status register */ 12 #define LE_IE 0x80 /* interrupt enable */ 13 #define LE_IR 0x40 /* interrupt requested */ 14 #define LE_LOCK 0x08 /* lock status register */ 15 #define LE_ACK 0x04 /* ack of lock */ 16 #define LE_JAB 0x02 /* loss of tx clock (???) */ 17 /* We can also extract the IPL from the status register with the standard 18 * DIO_IPL(hplance) macro, or using dio_scodetoipl() 19 */ 20 21 /* These are the offsets for the DIO regs (hplance_reg), lance_ioreg, 22 * memory and NVRAM: 23 */ 24 #define HPLANCE_IDOFF 0 /* board baseaddr */ 25 #define HPLANCE_REGOFF 0x4000 /* lance registers */ 26 #define HPLANCE_MEMOFF 0x8000 /* struct lance_init_block */ 27 #define HPLANCE_NVRAMOFF 0xC008 /* etheraddress as one *nibble* per byte */