initial import of NetBSD tree

1 files changed, 217 insertions, 0 deletions

diff --git a/sys/arch/hp300/dev/grf_gb.c b/sys/arch/hp300/dev/grf_gb.c
new file mode 100644
index 00000000000..ee9c0b0310d
--- /dev/null
+++ b/sys/arch/hp300/dev/grf_gb.c
@@ -0,0 +1,217 @@
+/*	$NetBSD: grf_gb.c,v 1.4 1994/10/26 07:23:52 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department.
+ *
+ * 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.
+ *
+ * from: Utah $Hdr: grf_gb.c 1.18 93/08/13$
+ *
+ *	@(#)grf_gb.c	8.4 (Berkeley) 1/12/94
+ */
+
+#include "grf.h"
+#if NGRF > 0
+
+/*
+ * Graphics routines for the Gatorbox.
+ *
+ * Note: In the context of this system, "gator" and "gatorbox" both refer to
+ *       HP 987x0 graphics systems.  "Gator" is not used for high res mono.
+ *       (as in 9837 Gator systems)
+ */
+#include <sys/param.h>
+#include <sys/errno.h>
+
+#include <hp300/dev/grfioctl.h>
+#include <hp300/dev/grfvar.h>
+#include <hp300/dev/grf_gbreg.h>
+
+#include <machine/cpu.h>
+
+#define CRTC_DATA_LENGTH  0x0e
+u_char crtc_init_data[CRTC_DATA_LENGTH] = {
+    0x29, 0x20, 0x23, 0x04, 0x30, 0x0b, 0x30,
+    0x30, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00
+};
+
+/*
+ * Initialize hardware.
+ * Must point g_display at a grfinfo structure describing the hardware.
+ * Returns 0 if hardware not present, non-zero ow.
+ */
+gb_init(gp, addr)
+	struct grf_softc *gp;
+	caddr_t addr;
+{
+	register struct gboxfb *gbp;
+	struct grfinfo *gi = &gp->g_display;
+	u_char *fbp, save;
+	int fboff;
+	extern caddr_t sctopa(), iomap();
+
+	gbp = (struct gboxfb *) addr;
+	if (ISIIOVA(addr))
+		gi->gd_regaddr = (caddr_t) IIOP(addr);
+	else
+		gi->gd_regaddr = sctopa(vatosc(addr));
+	gi->gd_regsize = 0x10000;
+	gi->gd_fbwidth = 1024;		/* XXX */
+	gi->gd_fbheight = 1024;		/* XXX */
+	gi->gd_fbsize = gi->gd_fbwidth * gi->gd_fbheight;
+	fboff = (gbp->fbomsb << 8) | gbp->fbolsb;
+	gi->gd_fbaddr = (caddr_t) (*((u_char *)addr + fboff) << 16);
+	gp->g_regkva = addr;
+	gp->g_fbkva = iomap(gi->gd_fbaddr, gi->gd_fbsize);
+	gi->gd_dwidth = 1024;		/* XXX */
+	gi->gd_dheight = 768;		/* XXX */
+	gi->gd_planes = 0;		/* how do we do this? */
+	/*
+	 * The minimal register info here is from the Gatorbox X driver.
+	 */
+	fbp = (u_char *) gp->g_fbkva;
+	gbp->write_protect = 0;
+	gbp->interrupt = 4;		/** fb_enable ? **/
+	gbp->rep_rule = 3;		/* GXcopy */
+	gbp->blink1 = 0xff;
+	gbp->blink2 = 0xff;
+
+	gb_microcode(gbp);
+
+	/*
+	 * Find out how many colors are available by determining
+	 * which planes are installed.  That is, write all ones to
+	 * a frame buffer location, see how many ones are read back.
+	 */
+	save = *fbp;
+	*fbp = 0xFF;
+	gi->gd_colors = *fbp + 1;
+	*fbp = save;
+	return(1);
+}
+
+/*
+ * Program the 6845.
+ */
+gb_microcode(gbp)
+	register struct gboxfb *gbp;
+{
+	register int i;
+	
+	for (i = 0; i < CRTC_DATA_LENGTH; i++) {
+		gbp->crtc_address = i;
+		gbp->crtc_data = crtc_init_data[i];
+	}
+}
+
+/*
+ * Change the mode of the display.
+ * Right now all we can do is grfon/grfoff.
+ * Return a UNIX error number or 0 for success.
+ */
+gb_mode(gp, cmd, data)
+	register struct grf_softc *gp;
+	int cmd;
+	caddr_t data;
+{
+	struct gboxfb *gbp;
+	int error = 0;
+
+	gbp = (struct gboxfb *) gp->g_regkva;
+	switch (cmd) {
+	case GM_GRFON:
+		gbp->sec_interrupt = 1;
+		break;
+
+	case GM_GRFOFF:
+		break;
+
+	/*
+	 * Remember UVA of mapping for GCDESCRIBE.
+	 * XXX this should be per-process.
+	 */
+	case GM_MAP:
+		gp->g_data = data;
+		break;
+
+	case GM_UNMAP:
+		gp->g_data = 0;
+		break;
+
+#ifdef COMPAT_HPUX
+	case GM_DESCRIBE:
+	{
+		struct grf_fbinfo *fi = (struct grf_fbinfo *)data;
+		struct grfinfo *gi = &gp->g_display;
+		int i;
+
+		/* feed it what HP-UX expects */
+		fi->id = gi->gd_id;
+		fi->mapsize = gi->gd_fbsize;
+		fi->dwidth = gi->gd_dwidth;
+		fi->dlength = gi->gd_dheight;
+		fi->width = gi->gd_fbwidth;
+		fi->length = gi->gd_fbheight;
+		fi->bpp = NBBY;
+		fi->xlen = (fi->width * fi->bpp) / NBBY;
+		fi->npl = gi->gd_planes;
+		fi->bppu = fi->npl;
+		fi->nplbytes = fi->xlen * ((fi->length * fi->bpp) / NBBY);
+		bcopy("HP98700", fi->name, 8);
+		fi->attr = 2;	/* HW block mover */
+		/*
+		 * If mapped, return the UVA where mapped.
+		 */
+		if (gp->g_data) {
+			fi->regbase = gp->g_data;
+			fi->fbbase = fi->regbase + gp->g_display.gd_regsize;
+		} else {
+			fi->fbbase = 0;
+			fi->regbase = 0;
+		}
+		for (i = 0; i < 6; i++)
+			fi->regions[i] = 0;
+		break;
+	}
+#endif
+
+	default:
+		error = EINVAL;
+		break;
+	}
+	return(error);
+}
+
+#endif