[src/trunk]: src/sys/dev/ic Define config register 3 values for NCR53C9x/FAS216.

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

details:   https://anonhg.NetBSD.org/src/rev/2b3c7d00eb7c
branches:  trunk
changeset: 476617:2b3c7d00eb7c
user:      mhitch <mhitch%NetBSD.org@localhost>
date:      Wed Sep 22 03:31:23 1999 +0000

description:
Define config register 3 values for NCR53C9x/FAS216.

Add sc_cfg3_fscsi to the softc and use it to set the chip into Fast SCSI
mode for the chips that use it.

diffstat:

 sys/dev/ic/ncr53c9x.c    |  12 +++++++++---
 sys/dev/ic/ncr53c9xreg.h |  13 ++++++++++++-
 sys/dev/ic/ncr53c9xvar.h |   3 ++-
 3 files changed, 23 insertions(+), 5 deletions(-)

diffs (70 lines):

diff -r 1055627c47c6 -r 2b3c7d00eb7c sys/dev/ic/ncr53c9x.c
--- a/sys/dev/ic/ncr53c9x.c     Wed Sep 22 03:01:53 1999 +0000
+++ b/sys/dev/ic/ncr53c9x.c     Wed Sep 22 03:31:23 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ncr53c9x.c,v 1.34 1999/02/12 00:52:52 thorpej Exp $    */
+/*     $NetBSD: ncr53c9x.c,v 1.35 1999/09/22 03:31:23 mhitch Exp $     */
 
 /*-
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -444,8 +444,14 @@
                         * put the chip in Fast SCSI mode.
                         */
                        if (ti->period <= 50)
-                               cfg3 |= (sc->sc_rev == NCR_VARIANT_AM53C974) ?
-                                   NCRAMDCFG3_FSCSI : NCRCFG3_FSCSI;
+                               /*
+                                * There are (at least) 4 variations of the
+                                * configuration 3 register.  The drive attach
+                                * routine sets the appropriate bit to put the
+                                * chip into Fast SCSI mode so that it doesn't
+                                * have to be figured out here each time.
+                                */
+                               cfg3 |= sc->sc_cfg3_fscsi;
                }
 
                /*
diff -r 1055627c47c6 -r 2b3c7d00eb7c sys/dev/ic/ncr53c9xreg.h
--- a/sys/dev/ic/ncr53c9xreg.h  Wed Sep 22 03:01:53 1999 +0000
+++ b/sys/dev/ic/ncr53c9xreg.h  Wed Sep 22 03:31:23 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ncr53c9xreg.h,v 1.5 1999/01/06 19:19:38 thorpej Exp $  */
+/*     $NetBSD: ncr53c9xreg.h,v 1.6 1999/09/22 03:31:23 mhitch Exp $   */
 
 /*
  * Copyright (c) 1994 Peter Galbavy.  All rights reserved.
@@ -166,6 +166,17 @@
 #define         NCRESPCFG3_ADMA        0x02    /*      Alternate DMA Mode      */
 #define         NCRESPCFG3_T8M         0x01    /*      Threshold 8 Mode        */
 
+/* Config #3 also different on NCR53CF9x/FAS216 */
+#define        NCR_F9XCFG3             0x0c    /* RW - Configuration #3        */
+#define  NCRF9XCFG3_IDM                0x80    /*      ID Message Res Check    */
+#define  NCRF9XCFG3_QTE                0x40    /*      Queue Tag Enable        */
+#define  NCRF9XCFG3_CDB                0x20    /*      CDB 10-bytes OK         */
+#define  NCRF9XCFG3_FSCSI      0x10    /*      Fast SCSI               */
+#define  NCRF9XCFG3_FCLK       0x08    /*      Fast Clock (>25Mhz)     */
+#define  NCRF9XCFG3_SRESB      0x04    /*      Save Residual Byte      */
+#define  NCRF9XCFG3_ADMA       0x02    /*      Alternate DMA Mode      */
+#define  NCRF9XCFG3_T8M                0x01    /*      Threshold 8 Mode        */
+
 /* Config #4 only on ESP406/FAS408 */
 #define        NCR_CFG4        0x0d            /* RW - Configuration #4        */
 #define         NCRCFG4_CRS1   0x80            /*      Select register set #1  */
diff -r 1055627c47c6 -r 2b3c7d00eb7c sys/dev/ic/ncr53c9xvar.h
--- a/sys/dev/ic/ncr53c9xvar.h  Wed Sep 22 03:01:53 1999 +0000
+++ b/sys/dev/ic/ncr53c9xvar.h  Wed Sep 22 03:31:23 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ncr53c9xvar.h,v 1.17 1999/01/06 19:19:38 thorpej Exp $ */
+/*     $NetBSD: ncr53c9xvar.h,v 1.18 1999/09/22 03:31:23 mhitch Exp $  */
 
 /*-
  * Copyright (c) 1997 The NetBSD Foundation, Inc.
@@ -243,6 +243,7 @@
        u_char  sc_cfg1;                        /* Config 1 */
        u_char  sc_cfg2;                        /* Config 2, not ESP100 */
        u_char  sc_cfg3;                        /* Config 3, only ESP200 */
+       u_char  sc_cfg3_fscsi;                  /* Chip-specific FSCSI bit */
        u_char  sc_ccf;                         /* Clock Conversion */
        u_char  sc_timeout;