[src/nathanw_sa]: src/sys/arch/hp300/stand/common Protect against possible al...

[gmcgarry <gmcgarry%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3c50f960a056
branches:  nathanw_sa
changeset: 504686:3c50f960a056
user:      gmcgarry <gmcgarry%NetBSD.org@localhost>
date:      Sun May 27 05:31:59 2001 +0000

description:
Protect against possible alignment problems.

diffstat:

 sys/arch/hp300/stand/common/if_lereg.h |  162 +++++++++++++++++++++++++++++++++
 1 files changed, 162 insertions(+), 0 deletions(-)

diffs (166 lines):

diff -r d3fe3dab0f78 -r 3c50f960a056 sys/arch/hp300/stand/common/if_lereg.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/hp300/stand/common/if_lereg.h    Sun May 27 05:31:59 2001 +0000
@@ -0,0 +1,162 @@
+/*     $NetBSD: if_lereg.h,v 1.2.8.2 2001/05/27 05:31:59 gmcgarry Exp $        */
+
+/*
+ * Copyright (c) 1982, 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)if_lereg.h  7.1 (Berkeley) 5/8/90
+ */
+
+#define        LEID            21
+
+#define        NTBUF   2
+#define        TLEN    1
+#define        NRBUF   8
+#define        RLEN    3
+#define        BUFSIZE 1518
+
+#define vu_char                volatile u_char
+#define vu_short       volatile u_short
+
+/*
+ * LANCE registers.
+ */
+struct lereg0 {
+       u_char  ler0_pad0;
+       vu_char ler0_id;        /* ID */
+       u_char  ler0_pad1;
+       vu_char ler0_status;    /* interrupt enable/status */
+} __attribute__((__packed__));
+
+/*
+ * Control and status bits -- lereg0
+ */
+#define        LE_IE           0x80            /* interrupt enable */
+#define        LE_IR           0x40            /* interrupt requested */
+#define        LE_LOCK         0x08            /* lock status register */
+#define        LE_ACK          0x04            /* ack of lock */
+#define        LE_JAB          0x02            /* loss of tx clock (???) */
+#define LE_IPL(x)      ((((x) >> 4) & 0x3) + 3)
+
+struct lereg1 {
+       vu_short        ler1_rdp;       /* data port */
+       vu_short        ler1_rap;       /* register select port */
+} __attribute__((__packed__));
+
+/*
+ * Control and status bits -- lereg1
+ */
+#define        LE_SERR         0x8000
+#define        LE_BABL         0x4000
+#define        LE_CERR         0x2000
+#define        LE_MISS         0x1000
+#define        LE_MERR         0x0800
+#define        LE_RINT         0x0400
+#define        LE_TINT         0x0200
+#define        LE_IDON         0x0100
+#define        LE_INTR         0x0080
+#define        LE_INEA         0x0040
+#define        LE_RXON         0x0020
+#define        LE_TXON         0x0010
+#define        LE_TDMD         0x0008
+#define        LE_STOP         0x0004
+#define        LE_STRT         0x0002
+#define        LE_INIT         0x0001
+
+#define        LE_BSWP         0x0004
+#define        LE_ACON         0x0002
+#define        LE_BCON         0x0001
+
+/*
+ * Overlayed on 16K dual-port RAM.
+ * Current size is 15,284 bytes with 8 x 1518 receive buffers and
+ * 2 x 1518 transmit buffers.
+ */
+
+/*
+ * LANCE initialization block
+ */
+struct init_block {
+       u_short mode;           /* mode register */
+       u_char padr[6];         /* ethernet address */
+       u_long ladrf[2];        /* logical address filter (multicast) */
+        u_short rdra;           /* low order pointer to receive ring */
+        u_short rlen;           /* high order pointer and no. rings */
+        u_short tdra;           /* low order pointer to transmit ring */
+        u_short tlen;           /* high order pointer and no rings */
+} __attribute__((__packed__));
+
+/*
+ * Mode bits -- init_block
+ */
+#define        LE_PROM         0x8000          /* promiscuous */
+#define        LE_INTL         0x0040          /* internal loopback */
+#define        LE_DRTY         0x0020          /* disable retry */
+#define        LE_COLL         0x0010          /* force collision */
+#define        LE_DTCR         0x0008          /* disable transmit crc */
+#define        LE_LOOP         0x0004          /* loopback */
+#define        LE_DTX          0x0002          /* disable transmitter */
+#define        LE_DRX          0x0001          /* disable receiver */
+#define        LE_NORMAL       0x0000
+
+/* 
+ * Message descriptor
+ */
+struct mds {
+       u_short addr;
+       u_short flags;
+       u_short bcnt;
+       u_short mcnt;
+} __attribute__((__packed__));
+
+/* Message descriptor flags */
+#define LE_OWN         0x8000          /* owner bit, 0=host, 1=LANCE */
+#define LE_ERR         0x4000          /* error */
+#define        LE_STP          0x0200          /* start of packet */
+#define        LE_ENP          0x0100          /* end of packet */
+
+/* Receive ring status flags */
+#define LE_FRAM                0x2000          /* framing error error */
+#define LE_OFLO                0x1000          /* silo overflow */
+#define LE_CRC         0x0800          /* CRC error */
+#define LE_RBUFF       0x0400          /* buffer error */
+
+/* Transmit ring status flags */
+#define LE_MORE                0x1000          /* more than 1 retry */
+#define LE_ONE         0x0800          /* one retry */
+#define LE_DEF         0x0400          /* deferred transmit */
+
+/* Transmit errors */
+#define LE_TBUFF       0x8000          /* buffer error */
+#define LE_UFLO                0x4000          /* silo underflow */
+#define LE_LCOL                0x1000          /* late collision */
+#define LE_LCAR                0x0800          /* loss of carrier */
+#define LE_RTRY                0x0400          /* tried 16 times */