ethernet/apple/mace.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  * mace.h - definitions for the registers in the Am79C940 MACE
14 	REG(xmtfc);		/* transmit frame control */
15 	REG(xmtfs);		/* transmit frame status */
17 	REG(rcvfc);		/* receive frame control */
18 	REG(rcvfs);		/* receive frame status (4 bytes) */
19 	REG(fifofc);		/* FIFO frame count */
48 #define DXMTFCS		0x08	/* don't append FCS to transmitted frame */
49 #define AUTO_PAD_XMIT	0x01	/* auto-pad short packets on transmission */
53 #define UFLO		0x40	/* underflow - xmit fifo ran dry */
55 #define MORE		0x10	/* 2 or more retries needed to xmit frame */
56 #define ONE		0x08	/* 1 retry needed to xmit frame */
63 #define RETRY_MASK	0x0f	/* number of retries (0 - 15) */
68 #define AUTO_STRIP_RCV	0x01	/* auto-strip short LLC frames on recv */
71  * Bits in RCVFS.  After a frame is received, four bytes of status
72  * are automatically read from this register and appended to the frame
74  * Byte 0 and 1: message byte count and frame status
79 #define RS_CLSN		0x4000	/* received frame suffered (late) collision */
81 #define RS_FCSERR	0x1000	/* frame had FCS error */
85 #define RCVFC_SH	4	/* receive frame count in FIFO */
87 #define XMTFC_SH	0	/* transmit frame count in FIFO */
94 #define JABBER		0x80	/* jabber error - 10baseT xmission too long */
95 #define BABBLE		0x40	/* babble - xmitter xmitting for too long */
96 #define CERR		0x20	/* collision err - no SQE test (heartbeat) */
109 #define BSWP		0x40	/* byte swap, i.e. big-endian bus */
130 #define DXMT2PD		0x40	/* disable xmit two-part deferral algorithm */
138 #define XMTSEL		0x08	/* select DO+/DO- state when idle */
140 #define PORTSEL_10T	0x02	/* select 10Base-T port */
146 #define LNKFL		0x80	/* reports 10Base-T link failure */
147 #define DLNKTST		0x40	/* disable 10Base-T link test */
148 #define REVPOL		0x20	/* 10Base-T receiver polarity reversed */
151 #define ASEL		0x04	/* auto-select AUI or 10Base-T port */
166 #define LOOP_NONE	0x00	/* no loopback */