Provide the same fbxxx() api as on sparc, in order to factorize more code

and eventually share some drivers.
This also brings us screen unblanking upon entering ddb, which can be really
useful at times...

1 files changed, 240 insertions, 0 deletions

diff --git a/sys/arch/sparc64/dev/fb.c b/sys/arch/sparc64/dev/fb.c
new file mode 100644
index 00000000000..ff4962027fa
--- /dev/null
+++ b/sys/arch/sparc64/dev/fb.c
@@ -0,0 +1,240 @@
+/*	$OpenBSD: fb.c,v 1.1 2003/06/16 20:46:10 miod Exp $	*/
+/*	$NetBSD: fb.c,v 1.23 1997/07/07 23:30:22 pk Exp $ */
+
+/*
+ * Copyright (c) 2002 Miodrag Vallat
+ * 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.
+ *
+ * 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.
+ *
+ *
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * 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, Lawrence Berkeley Laboratory.
+ *
+ * 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. 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.
+ *
+ *	@(#)fb.c	8.1 (Berkeley) 6/11/93
+ */
+
+/*
+ * Common wsdisplay framebuffer drivers helpers.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/proc.h>
+#include <sys/conf.h>
+
+#include <machine/autoconf.h>
+#include <machine/conf.h>
+
+#include <dev/wscons/wsdisplayvar.h>
+#include <dev/wscons/wscons_raster.h>
+#include <dev/rasops/rasops.h>
+#include <machine/fbvar.h>
+
+#include "wsdisplay.h"
+
+/*
+ * emergency unblank code
+ * XXX should be somewhat moved to wscons MI code
+ */
+
+void (*fb_burner)(void *, u_int, u_int);
+void *fb_cookie;
+
+void
+fb_unblank()
+{
+	if (fb_burner != NULL)
+		(*fb_burner)(fb_cookie, 1, 0);
+}
+
+#if NWSDISPLAY > 0
+
+void
+fb_setsize(struct sunfb *sf, int def_depth, int def_width, int def_height,
+    int node, int unused)
+{
+	int def_linebytes;
+
+	sf->sf_depth = getpropint(node, "depth", def_depth);
+	sf->sf_width = getpropint(node, "width", def_width);
+	sf->sf_height = getpropint(node, "height", def_height);
+
+	def_linebytes =
+	    roundup(sf->sf_width, sf->sf_depth) * sf->sf_depth / 8;
+	sf->sf_linebytes = getpropint(node, "linebytes", def_linebytes);
+	/*
+	 * XXX If we are configuring a board in a wider depth level
+	 * than the mode it is currently operating in, the PROM will
+	 * return a linebytes property tied to the current depth value,
+	 * which is NOT what we are relying upon!
+	 */
+	if (sf->sf_linebytes < (sf->sf_width * sf->sf_depth) / 8) {
+		sf->sf_linebytes = def_linebytes;
+	}
+
+	sf->sf_fbsize = sf->sf_height * sf->sf_linebytes;
+}
+
+int a2int(char *, int);
+
+int
+a2int(char *cp, int deflt)
+{
+	int i = 0;
+
+	if (*cp == '\0')
+		return (deflt);
+	while (*cp != '\0')
+		i = i * 10 + *cp++ - '0';
+	return (i);
+}
+
+void
+fbwscons_init(struct sunfb *sf, int flags)
+{
+	int cols, rows;
+
+	/* ri_hw and ri_bits must have already been setup by caller */
+	sf->sf_ro.ri_flg = RI_CENTER | flags;
+	sf->sf_ro.ri_depth = sf->sf_depth;
+	sf->sf_ro.ri_stride = sf->sf_linebytes;
+	sf->sf_ro.ri_width = sf->sf_width;
+	sf->sf_ro.ri_height = sf->sf_height;
+
+	rows = a2int(getpropstring(optionsnode, "screen-#rows"), 34);
+	cols = a2int(getpropstring(optionsnode, "screen-#columns"), 80);
+
+	rasops_init(&sf->sf_ro, rows, cols);
+}
+
+void
+fbwscons_console_init(struct sunfb *sf, struct wsscreen_descr *wsc, int row,
+    void (*burner)(void *, u_int, u_int))
+{
+	long defattr;
+	int *ccolp, *crowp;
+
+	if (romgetcursoraddr(&crowp, &ccolp))
+		ccolp = crowp = NULL;
+	if (ccolp != NULL)
+		sf->sf_ro.ri_ccol = *ccolp;
+
+	if (row < 0) {
+		if (crowp != NULL)
+			sf->sf_ro.ri_crow = *crowp;
+		else
+			/* assume last row */
+			sf->sf_ro.ri_crow = sf->sf_ro.ri_rows - 1;
+	} else
+		sf->sf_ro.ri_crow = row;
+
+	/*
+	 * Scale back rows and columns if the font would not otherwise
+	 * fit on this display. Without this we would panic later.
+	 */
+	if (sf->sf_ro.ri_crow >= wsc->nrows)
+		sf->sf_ro.ri_crow = wsc->nrows - 1;
+	if (sf->sf_ro.ri_ccol >= wsc->ncols)
+		sf->sf_ro.ri_ccol = wsc->ncols - 1;
+
+	/*
+	 * Select appropriate color settings to mimic a
+	 * black on white Sun console.
+	 */
+	if (sf->sf_depth > 8) {
+		wscol_white = 0;
+		wscol_black = 255;
+		wskernel_bg = 0;
+		wskernel_fg = 255;
+	}
+
+	if (ISSET(wsc->capabilities, WSSCREEN_WSCOLORS) &&
+	    sf->sf_depth == 8) {
+		sf->sf_ro.ri_ops.alloc_attr(&sf->sf_ro,
+		    WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, &defattr);
+	} else {
+		sf->sf_ro.ri_ops.alloc_attr(&sf->sf_ro, 0, 0, 0, &defattr);
+	}
+
+	wsdisplay_cnattach(wsc, &sf->sf_ro,
+	    sf->sf_ro.ri_ccol, sf->sf_ro.ri_crow, defattr);
+
+	/* remember screen burner routine */
+	fb_burner = burner;
+	fb_cookie = sf;
+}
+
+void
+fbwscons_setcolormap(struct sunfb *sf,
+    void (*setcolor)(void *, u_int, u_int8_t, u_int8_t, u_int8_t))
+{
+	int i;
+	u_char *color;
+
+	if (sf->sf_depth <= 8 && setcolor != NULL) {
+		for (i = 0; i < 16; i++) {
+			color = (u_char *)&rasops_cmap[i * 3];
+			setcolor(sf, i, color[0], color[1], color[2]);
+		}
+		/* compensate for BoW palette */
+		setcolor(sf, WSCOL_BLACK, 0, 0, 0);
+		setcolor(sf, 255, 0, 0, 0);	/* cursor */
+		setcolor(sf, WSCOL_WHITE, 255, 255, 255);
+	}
+}
+
+#endif	/* NWSDISPLAY */