add wscons support to powerpc port.

This contains several pieces of the port
MI:
    vgafb, on powerpc under openfirmware the vga card comes up in gfx mode.
    instead of resetting it to text mode, vgafb treats this as a raster
    display. The mechanism used may not have been the best, it's
    interface to wscons is as a text display, and it does the character
    plotting itself.
    font_8x16.c was stolen from the atari port for use.

MD:
    ppcppi support stolen from alpha
    pms.c, pckbd.c and the rest of the support files were
    used nearly directly.

    powerpc
      conf.c to support wscon, vga/kbd
      machdep.c hack to get around a bus_space_set_region,bus_space_copy error.
      ofw_machdep.c some hack code on the road to supporting wscons as console.

1 files changed, 62 insertions, 0 deletions

diff --git a/sys/arch/powerpc/include/wsconsio.h b/sys/arch/powerpc/include/wsconsio.h
new file mode 100644
index 00000000000..9fe9ba4c58d
--- /dev/null
+++ b/sys/arch/powerpc/include/wsconsio.h
@@ -0,0 +1,62 @@
+/*	$OpenBSD: wsconsio.h,v 1.1 1998/09/27 03:55:57 rahnds Exp $	*/
+/*	$NetBSD: wsconsio.h,v 1.1 1996/04/12 01:43:06 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1995, 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * 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 the
+ * rights to redistribute these changes.
+ */
+
+/*
+ * Get keyboard type.  Keyboard type definitions are below.
+ */
+#define	WSCONSIO_KBD_GTYPE		_IOR('W',100,int)
+#define		KBD_TYPE_LK201		0		/* lk-201 */
+#define		KBD_TYPE_LK401		1		/* lk-401 */
+#define		KBD_TYPE_PC		2		/* pc-like */
+
+/*
+ * If arg is one, don't process scancodes into characters
+ */
+#define	WSCONSIO_KBD_SCANCODES		_IO('W',101,int)
+
+/*
+ * Bell ioctls.
+ */
+
+struct wsconsio_bell_data {
+	int	wbd_flags;
+	int	wbd_pitch;		/* pitch, in Hz. */
+	int	wbd_period;		/* period, in milliseconds. */
+	int	wbd_volume;		/* percentage of maximum volume. */
+};
+
+#define	WSCONSIO_BELLDATA_PITCH		0x01	/* pitch data present */
+#define	WSCONSIO_BELLDATA_PERIOD	0x02	/* period data present */
+#define	WSCONSIO_BELLDATA_VOLUME	0x04	/* volume data present */
+
+#define	WSCONSIO_BELL			_IO('W',102)
+#define	WSCONSIO_COMPLEXBELL		_IOW('W',103,struct wsconsio_bell_data)
+#define	WSCONSIO_SETBELL		_IOW('W',104,struct wsconsio_bell_data)
+#define	WSCONSIO_GETBELL		_IOR('W',105,struct wsconsio_bell_data)