PDC call wrapper

1 files changed, 72 insertions, 0 deletions

diff --git a/sys/arch/hppa/dev/pdcall.c b/sys/arch/hppa/dev/pdcall.c
new file mode 100644
index 00000000000..2b78632ff44
--- /dev/null
+++ b/sys/arch/hppa/dev/pdcall.c
@@ -0,0 +1,72 @@
+/*	$OpenBSD: pdcall.c,v 1.1 1998/09/12 02:53:25 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1998 Michael Shalayeff
+ * All rights reserved.
+ *
+ * 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 Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include <sys/param.h>
+
+#include <machine/stdarg.h>
+#include <machine/cpufunc.h>
+#include <machine/pdc.h>
+#include <machine/psl.h>
+#include <machine/reg.h>
+
+int
+pdc_call(func, pdc_flag)
+	iodcio_t func;
+	int pdc_flag;
+{
+	register register_t ret, psw;
+	va_list va;
+	int args[11], i;
+
+	va_start(va, pdc_flag);
+	for (i = 0; i < sizeof(args)/sizeof(args[0]); i++)
+		args[i] = va_arg(va, int);
+	va_end(va);
+	
+	if (kernelmapped) {
+		psw = PSW_Q;
+		
+		if (!pdc_flag && args[0] == PDC_PIM)
+			psw |= PSW_M;
+
+		set_psw(psw);
+	}
+
+	ret = (func)((void *)args[0], args[1], args[2], args[3], args[4],
+		     args[5], args[6], args[7], args[8], args[9], args[10]);
+
+	if (kernelmapped) {
+		set_psw(KERNEL_PSW);
+	}
+
+	return ret;
+}