[src/trunk]: src/sys/dev/mscp Copied from ../../arch/vax/mscp/mscpreg.h, v

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

details:   https://anonhg.NetBSD.org/src/rev/bcdf55f7d874
branches:  trunk
changeset: 473337:bcdf55f7d874
user:      ragge <ragge%NetBSD.org@localhost>
date:      Sat May 29 19:12:53 1999 +0000

description:
Copied from ../../arch/vax/mscp/mscpreg.h,v

diffstat:

 sys/dev/mscp/mscpreg.h |  125 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 125 insertions(+), 0 deletions(-)

diffs (129 lines):

diff -r b58bb95d3281 -r bcdf55f7d874 sys/dev/mscp/mscpreg.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/mscp/mscpreg.h    Sat May 29 19:12:53 1999 +0000
@@ -0,0 +1,125 @@
+/*     $NetBSD: mscpreg.h,v 1.4 1999/05/29 19:12:53 ragge Exp $        */
+/*
+ * Copyright (c) 1996 Ludd, University of Lule}, Sweden.
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * 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.
+ *
+ *     @(#)udareg.h    7.3 (Berkeley) 5/8/91
+ */
+
+/*
+ * NRSPL2 and NCMDL2 control the number of response and command
+ * packets respectively.  They may be any value from 0 to 7, though
+ * setting them higher than 5 is unlikely to be of any value.
+ * If you get warnings about your command ring being too small,
+ * try increasing the values by one.
+ */
+#ifndef NRSP
+#define NRSPL2 5
+#define NCMDL2 5
+#define NRSP   (1 << NRSPL2)
+#define NCMD   (1 << NCMDL2)
+#endif
+
+/*
+ * Communication area definition. This seems to be the same for
+ * all types of MSCP controllers.
+ */
+
+struct mscp_ca {
+       short   ca_xxx1;        /* unused */
+       char    ca_xxx2;        /* unused */
+       char    ca_bdp;         /* BDP to purge */
+       short   ca_cmdint;      /* command ring transition flag */
+       short   ca_rspint;      /* response ring transition flag */
+       long    ca_rspdsc[NRSP];/* response descriptors */
+       long    ca_cmddsc[NCMD];/* command descriptors */
+};
+
+/*
+ * Simplified routines (e.g., uddump) reprogram the UDA50 for one command
+ * and one response at a time; uda1ca is like udaca except that it provides
+ * exactly one command and response descriptor.
+ */
+struct mscp_1ca {
+       short   ca_xxx1;
+       char    ca_xxx2;
+       char    ca_bdp;
+       short   ca_cmdint;
+       short   ca_rspint;
+       long    ca_rspdsc;
+       long    ca_cmddsc;
+};
+
+/*
+ * Combined communications area and MSCP packet pools, per controller.
+ * NRSP and NCMD must be defined before this struct is used.
+ */
+
+struct mscp_pack {
+       struct  mscp_ca mp_ca;          /* communications area */
+       struct  mscp mp_rsp[NRSP];      /* response packets */
+       struct  mscp mp_cmd[NCMD];      /* command packets */
+};
+
+/*
+ * Bits in UDA status register during initialisation
+ */
+#define MP_ERR         0x8000  /* error */
+#define MP_STEP4       0x4000  /* step 4 has started */
+#define MP_STEP3       0x2000  /* step 3 has started */
+#define MP_STEP2       0x1000  /* step 2 has started */
+#define MP_STEP1       0x0800  /* step 1 has started */
+#define MP_NV          0x0400  /* no host settable interrupt vector */
+#define MP_QB          0x0200  /* controller supports Q22 bus */
+#define MP_DI          0x0100  /* controller implements diagnostics */
+#define MP_IE          0x0080  /* interrupt enable */
+#define MP_NCNRMASK    0x003f  /* in STEP1, bits 0-2=NCMDL2, 3-5=NRSPL2 */
+#define MP_IVECMASK    0x007f  /* in STEP2, bits 0-6 are interruptvec / 4 */
+#define MP_PI          0x0001  /* host requests adapter purge interrupts */
+#define MP_GO          0x0001  /* Go command to ctlr */
+
+#define ALLSTEPS       (MP_ERR | MP_STEP4 | MP_STEP3 | MP_STEP2 | MP_STEP1)
+
+#define STEP0MASK      (ALLSTEPS | MP_NV)
+
+#define STEP1MASK      (ALLSTEPS | MP_IE | MP_NCNRMASK) 
+#define STEP1GOOD      (MP_STEP2 | MP_IE | (NCMDL2 << 3) | NRSPL2)
+ 
+#define STEP2MASK      (ALLSTEPS | MP_IE | MP_IVECMASK)
+#define STEP2GOOD(iv)  (MP_STEP3 | MP_IE | (iv))
+ 
+#define STEP3MASK      ALLSTEPS
+#define STEP3GOOD      MP_STEP4
+