initial import of pica stuff (a few theo modifications already in here)

1 files changed, 146 insertions, 0 deletions

diff --git a/sys/arch/pica/isa/isa.c b/sys/arch/pica/isa/isa.c
new file mode 100644
index 00000000000..a38048a3e6d
--- /dev/null
+++ b/sys/arch/pica/isa/isa.c
@@ -0,0 +1,146 @@
+/*	$NetBSD: isa.c,v 1.33 1995/06/28 04:30:51 cgd Exp $	*/
+
+/*-
+ * Copyright (c) 1995 Per Fogelstrom
+ * Copyright (c) 1993, 1994 Charles Hannum.
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz and Don Ahn.
+ *
+ * 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.
+ *
+ *	@(#)isa.c	7.2 (Berkeley) 5/12/91
+ */
+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+  Copyright 1988, 1989 by Intel Corporation, Santa Clara, California.
+
+		All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and
+its documentation for any purpose and without fee is hereby
+granted, provided that the above copyright notice appears in all
+copies and that both the copyright notice and this permission notice
+appear in supporting documentation, and that the name of Intel
+not be used in advertising or publicity pertaining to distribution
+of the software without specific, written prior permission.
+
+INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
+NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/time.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+
+#include <machine/cpu.h>
+#include <machine/autoconf.h>
+
+#include <pica/pica/pica.h>
+
+#include <dev/isa/isareg.h>
+#include <dev/isa/isavar.h>
+#include <pica/isa/timerreg.h>
+#include <pica/isa/spkrreg.h>
+
+extern int isa_io_base;
+extern int isa_mem_base;
+
+static int beeping;
+
+#define	isa_outb(x,y)	outb(isa_io_base + (x), y)
+#define	isa_inb(x)	inb(isa_io_base + (x))
+
+void
+sysbeepstop(arg)
+	void *arg;
+{
+	int s;
+
+	/* disable counter 2 */
+	s = splhigh();
+	isa_outb(PITAUX_PORT, isa_inb(PITAUX_PORT) & ~PIT_SPKR);
+	splx(s);
+	beeping = 0;
+}
+
+void
+sysbeep(pitch, period)
+	int pitch, period;
+{
+	static int last_pitch, last_period;
+	int s;
+
+	if (beeping)
+		untimeout(sysbeepstop, 0);
+	if (!beeping || last_pitch != pitch) {
+		s = splhigh();
+		isa_outb(TIMER_MODE, TIMER_SEL2 | TIMER_16BIT | TIMER_SQWAVE);
+		isa_outb(TIMER_CNTR2, TIMER_DIV(pitch) % 256);
+		isa_outb(TIMER_CNTR2, TIMER_DIV(pitch) / 256);
+		isa_outb(PITAUX_PORT, isa_inb(PITAUX_PORT) | PIT_SPKR);
+		splx(s);
+	}
+	last_pitch = pitch;
+	beeping = last_period = period;
+	timeout(sysbeepstop, 0, period);
+}