[src/trunk]: src/sys/arch/mac68k Include a bit more info about what's not hap...

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

details:   https://anonhg.NetBSD.org/src/rev/7e77b3feb39a
branches:  trunk
changeset: 474103:7e77b3feb39a
user:      briggs <briggs%NetBSD.org@localhost>
date:      Mon Jun 28 04:33:21 1999 +0000

description:
Include a bit more info about what's not happening with IOP.

diffstat:

 sys/arch/mac68k/include/iopreg.h |   7 ++++++-
 sys/arch/mac68k/mac68k/iop.c     |  21 ++++++++++++++++-----
 2 files changed, 22 insertions(+), 6 deletions(-)

diffs (59 lines):

diff -r 498a3f7f1aa8 -r 7e77b3feb39a sys/arch/mac68k/include/iopreg.h
--- a/sys/arch/mac68k/include/iopreg.h  Mon Jun 28 04:21:15 1999 +0000
+++ b/sys/arch/mac68k/include/iopreg.h  Mon Jun 28 04:33:21 1999 +0000
@@ -1,4 +1,9 @@
-/*     $NetBSD: iopreg.h,v 1.1 1999/06/28 01:56:57 briggs Exp $        */
+/*     $NetBSD: iopreg.h,v 1.2 1999/06/28 04:33:21 briggs Exp $        */
+
+/*
+ * Freely contributed to The NetBSD Foundation.
+ * XXX - Do paperwork and put a proper copyright here.
+ */
 
 #include <sys/pool.h>
 #include <sys/queue.h>
diff -r 498a3f7f1aa8 -r 7e77b3feb39a sys/arch/mac68k/mac68k/iop.c
--- a/sys/arch/mac68k/mac68k/iop.c      Mon Jun 28 04:21:15 1999 +0000
+++ b/sys/arch/mac68k/mac68k/iop.c      Mon Jun 28 04:33:21 1999 +0000
@@ -1,4 +1,9 @@
-/*     $NetBSD: iop.c,v 1.1 1999/06/28 01:56:57 briggs Exp $   */
+/*     $NetBSD: iop.c,v 1.2 1999/06/28 04:33:22 briggs Exp $   */
+
+/*
+ * Freely contributed to the NetBSD Foundation.
+ * XXX - Do paperwork and put a proper copyright here.
+ */
 
 /*
  *     This code handles VIA, RBV, and OSS functionality.
@@ -144,12 +149,18 @@
                  0, NULL, NULL, M_DEVBUF);
        iop_write1(ioph, IOP_ADDR_ALIVE, 0);
 
+/*
+ * XXX  The problem here seems to be that the IOP wants to go back into
+ *     BYPASS mode.  The state should be 0x86 after we're done with it
+ *     here.  It switches to 0x7 almost immediately.
+ *     This means one of a couple of things to me--
+ *             1. We're doing something wrong
+ *             2. MacOS is really shutting down the IOP
+ *     Most likely, it's the first.
+ */
        printf("OLD cs0: 0x%x\n", (unsigned) ioph->control_status);
 
-       iop_write1(ioph, IOP_ADDR_MAX_SEND_CHAN, 7);
-       iop_write1(ioph, IOP_ADDR_MAX_RECV_CHAN, 7);
        ioph->control_status = 0x80 | IOP_CS_RUN | IOP_CS_AUTOINC;
-       iop_write1(ioph, IOP_ADDR_ALIVE, 0);
 {unsigned cs, c2;
        cs = (unsigned) ioph->control_status;
        printf("OLD cs1: 0x%x\n", cs);
@@ -378,7 +389,7 @@
 printf("msg loaded to iop: cs: 0x%x V1-%x- ", (unsigned) iop->iop->control_status, (unsigned)via_reg(VIA1, vIFR));
        }
 
-{int i; for (i=0;i<100;i++) {
+{int i; for (i=0;i<16;i++) {
 printf(" cs: 0x%x V1-%x- ", (unsigned) iop->iop->control_status, (unsigned)via_reg(VIA1, vIFR));
 delay(1000);
 }}