/*
wdeth.h

Created:	before Dec 28, 1992 by Philip Homburg
*/

#ifndef WDETH_H
#define WDETH_H

/* Western Digital Ethercard Plus, or WD8003E card. */

#define EPL_REG0	 0x0		/* Control(write) and status(read) */
#define EPL_REG1	 0x1
#define EPL_REG2	 0x2
#define EPL_REG3	 0x3
#define EPL_REG4	 0x4
#define EPL_REG5	 0x5
#define EPL_REG6	 0x6
#define EPL_REG7	 0x7
#define EPL_EA0		 0x8		/* Most significant eaddr byte */
#define EPL_EA1		 0x9
#define EPL_EA2		 0xA
#define EPL_EA3		 0xB
#define EPL_EA4		 0xC
#define EPL_EA5		 0xD		/* Least significant eaddr byte */
#define EPL_TLB		 0xE
#define EPL_CHKSUM	 0xF		/* sum from epl_ea0 upto here is 0xFF */
#define EPL_DP8390	0x10		/* NatSemi chip */

#define EPL_MSR		EPL_REG0	/* memory select register */
#define EPL_ICR 	EPL_REG1	/* interface configuration register */
#define EPL_IRR		EPL_REG4	/* interrupt request register (IRR) */
#define EPL_790_HWR	EPL_REG4	/* '790 hardware support register */
#define EPL_LAAR	EPL_REG5	/* LA address register (write only) */
#define EPL_790_ICR	EPL_REG6	/* '790 interrupt control register */
#define EPL_GP2		EPL_REG7	/* general purpose register 2 */
#define EPL_790_B	EPL_EA3		/* '790 memory register */
#define EPL_790_GCR	EPL_EA5		/* '790 General Control Register */

/* Bits in EPL_MSR */
#define E_MSR_MEMADDR	0x3F		/* Bits SA18-SA13, SA19 implicit 1 */
#define E_MSR_MENABLE	0x40		/* Memory Enable */
#define E_MSR_RESET	0x80		/* Software Reset */

/* Bits in EPL_ICR */
#define E_ICR_16BIT	0x01		/* 16 bit bus */
#define E_ICR_IR2	0x04		/* bit 2 of encoded IRQ */
#define E_ICR_MEMBIT	0x08		/* 583 mem size mask */

/* Bits in EPL_IRR */
#define E_IRR_IR0	0x20		/* bit 0 of encoded IRQ */
#define E_IRR_IR1	0x40		/* bit 1 of encoded IRQ */
#define E_IRR_IEN	0x80		/* enable interrupts */

/* Bits in EPL_LAAR */
#define E_LAAR_A19	0x01		/* address lines for above 1M ram */
#define E_LAAR_A20	0x02		/* address lines for above 1M ram */
#define E_LAAR_A21	0x04		/* address lines for above 1M ram */
#define E_LAAR_A22	0x08		/* address lines for above 1M ram */
#define E_LAAR_A23	0x10		/* address lines for above 1M ram */
#define E_LAAR_SOFTINT	0x20		/* enable software interrupt */
#define E_LAAR_LAN16E	0x40		/* enables 16 bit RAM for LAN */
#define E_LAAR_MEM16E	0x80		/* enables 16 bit RAM for host */

/* Bits and values in EPL_TLB */
#define E_TLB_EB	0x05		/* WD8013EB */
#define E_TLB_E		0x27		/* WD8013 Elite */
#define E_TLB_SMCE	0x29		/* SMC Elite 16 */
#define E_TLB_SMC8216C	0x2B		/* SMC 8216 C */

#define E_TLB_REV	0x1F		/* revision mask */
#define E_TLB_SOFT	0x20		/* soft config */
#define E_TLB_RAM	0x40		/* extra ram bit */

/* Bits in EPL_790_HWR */
#define E_790_HWR_SWH	0x80		/* switch register set */

/* Bits in EPL_790_ICR */
#define E_790_ICR_EIL	0x01		/* enable interrupts */

/* Bits in EPL_790_GCR when E_790_HWR_SWH is set in EPL_790_HWR */
#define E_790_GCR_IR0	0x04		/* bit 0 of encoded IRQ */
#define E_790_GCR_IR1	0x08		/* bit 1 of encoded IRQ */
#define E_790_GCR_IR2	0x40		/* bit 2 of encoded IRQ */


#define inb_we(dep, reg) (in_byte(dep->de_base_port+reg))
#define outb_we(dep, reg, data) (out_byte(dep->de_base_port+reg, data))

#endif /* WDETH_H */

/*
 * $PchHeader: /mount/hd2/minix/sys/kernel/ibm/RCS/wdeth.h,v 1.3 1994/10/31 10:36:29 philip Exp $
 */
