Bring in my long-overdue version of the Specialix driver.

This was originally ported to BSDI by Andy Rutter <andy@acronym.co.uk>.
At the end of the day, this code has very little in common with Andy's
version, or the Specialix SYSV version.  Essentially it has been gradually
and almost completely rewritten, with LOTS of advice and inspiration from
Bruce Evans.  There are a couple of missing bits still, but they are minor.

The user-mode "sicontrol" program is in sad shape and will come in soon.
Transparent printing died a timely death.. Maybe later..

Jeremy Rolls @ Specialix (Development directory) has confirmed this is OK
to distribute, and Andy personally sent me his version that I started from.

Although this driver stood up to a nasty stress-test in this form, I am not
confident that there are no nasty bugs lurking.

People are welcome to try it, but dont go out and buy one just yet.. :-)
And *DONT* use it on a mission-critical machine... This is ALPHA QUALITY!

1 files changed, 69 insertions, 0 deletions

diff --git a/sys/dev/si/sireg.h b/sys/dev/si/sireg.h
new file mode 100644
index 0000000..6a8dd4f
--- /dev/null
+++ b/sys/dev/si/sireg.h
@@ -0,0 +1,69 @@
+/*
+ * Device driver for Specialix range (SLXOS) of serial line multiplexors.
+ * 'C' definitions for Specialix serial multiplex driver.
+ *
+ * Copyright (C) 1990, 1992 Specialix International,
+ * Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk>
+ * Copyright (C) 1995, Peter Wemm <peter@haywire.dialix.com>
+ *
+ * Derived from:	SunOS 4.x version
+ *
+ * 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
+ *    notices, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notices, 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 Andy Rutter of
+ *	Advanced Methods and Tools Ltd. based on original information
+ *	from Specialix International.
+ * 4. Neither the name of Advanced Methods and Tools, nor Specialix
+ *    International may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ``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 AUTHORS BE LIABLE.
+ *
+ *	$Id$
+ */
+
+/*
+ * Hardware parameters which should be changed at your peril!
+ */
+
+/* Base and mask for SI Host 2.x (SIHOST2) */
+#define SIPLSIG		0x7FF8			/* Start of control space */
+#define SIPLCNTL	0x7FF8			/* Ditto */
+#define SIPLRESET	SIPLCNTL		/* 0 = reset */
+#define SIPLIRQ11	(SIPLCNTL+1)		/* 0 = mask irq 11 */
+#define SIPLIRQ12	(SIPLCNTL+2)		/* 0 = mask irq 12 */
+#define SIPLIRQ15	(SIPLCNTL+3)		/* 0 = mask irq 15 */
+#define SIPLIRQSET	(SIPLCNTL+4)		/* 0 = interrupt host */
+#define SIPLIRQCLR	(SIPLCNTL+5)		/* 0 = clear irq */
+
+/* SI Host 1.x */
+#define	SIRAM		0x0000			/* Ram Starts here */
+#define	SIRESET		0x8000			/* Set reset */
+#define	SIRESET_CL 	0xc000			/* Clear reset */
+#define	SIWAIT		0x9000			/* Set wait */
+#define	SIWAIT_CL 	0xd000			/* Set wait */
+#define SIINTCL		0xA000			/* Clear host int */
+#define SIINTCL_CL 	0xE000			/* Clear host int */
+
+/*
+ * MEMSIZE is the total shared mem region
+ * RAMSIZE is value to use when probing
+ */
+#define	SIHOST_MEMSIZE		0x10000
+#define	SIHOST_RAMSIZE		0x8000
+#define	SIHOST2_MEMSIZE		0x8000
+#define	SIHOST2_RAMSIZE		0x7ff7
+#define	SIEISA_MEMSIZE		0x10000
+#define	SEISAT_RAMSIZE		0x10000
+