'powerpc' common isa definitions.

1 files changed, 75 insertions, 0 deletions

diff --git a/sys/arch/powerpc/isa/isa_machdep.h b/sys/arch/powerpc/isa/isa_machdep.h
new file mode 100644
index 00000000000..6ca622e361a
--- /dev/null
+++ b/sys/arch/powerpc/isa/isa_machdep.h
@@ -0,0 +1,75 @@
+/*	$OpenBSD: isa_machdep.h,v 1.8 2003/10/31 03:55:06 drahn Exp $ */
+
+/*
+ * Copyright (c) 1997 Per Fogelstrom
+ * 
+ * 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 under OpenBSD by
+ *	Per Fogelstrom, Opsycon AB, Sweden.
+ * 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.
+ *
+ */
+#ifndef _ISA_MACHDEP_H_
+#define _ISA_MACHDEP_H_
+
+typedef struct ppc_isa_bus *isa_chipset_tag_t;
+
+/*
+ *      I/O macros to access isa bus ports/memory.
+ *      At the first glance theese macros may seem inefficient.
+ *      However, the cpu executes an instruction every <10 ns
+ *      so the bus is much slower so it doesn't matter, really.
+ */
+extern bus_space_handle_t ppc_isa_io_vaddr;
+#define isa_outb(x,y)   outb(ppc_isa_io_vaddr + (x), (y))
+#define isa_inb(x)   inb(ppc_isa_io_vaddr + (x))
+ 
+struct ppc_isa_bus {
+        void    *ic_data;
+
+        void    (*ic_attach_hook) (struct device *, struct device *,
+                    struct isabus_attach_args *);
+        void    *(*ic_intr_establish) (void *, int, int, int,
+                    int (*)(void *), void *, char *);
+        void    (*ic_intr_disestablish) (void *, void *);
+};
+
+
+/*
+ * Functions provided to machine-independent ISA code.
+ */
+#define isa_attach_hook(p, s, a)                             /*           \
+    (*(a)->iba_ic->ic_attach_hook)((p), (s), (a)) */
+#define isa_intr_establish(c, i, t, l, f, a, w)                         \
+    (*(c)->ic_intr_establish)((c)->ic_data, (i), (t), (l), (f), (a), (w))
+#define isa_intr_disestablish(c, h)                                     \
+    (*(c)->ic_intr_disestablish)((c)->ic_data, (h))
+
+#define __NO_ISA_INTR_CHECK	/* FIXME */
+
+#define ICU_LEN	16		/* Number of possible interrupt sources */
+
+extern void * isabr_intr_establish(void *, int, int, int,                             int (*ih_fun) (void *), void *, char *);                              
+#endif /* _ISA_MACHDEP_H_ */