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113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/* $NetBSD: gdium_genfb.c,v 1.6 2011/07/10 00:03:53 matt Exp $ */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: gdium_genfb.c,v 1.6 2011/07/10 00:03:53 matt Exp $");
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#include <sys/param.h>
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#include <sys/buf.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wsfont/wsfont.h>
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#include <dev/wscons/wsdisplay_vconsvar.h>
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#include <mips/bonito/bonitoreg.h>
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#include <evbmips/gdium/gdiumvar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include "wsdisplay.h"
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/* we need a wsdisplay to do anything halfway useful */
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#if NWSDISPLAY > 0
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static struct vcons_screen gdium_console_screen;
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static struct wsscreen_descr gdium_stdscreen = {
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.name = "std",
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};
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int
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gdium_cnattach(struct gdium_config *gc)
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{
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struct rasops_info * const ri = &gdium_console_screen.scr_ri;
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long defattr;
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pcireg_t reg;
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wsfont_init();
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/* set up rasops */
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ri->ri_width = 1024;
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ri->ri_height = 600;
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ri->ri_depth = 16;
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ri->ri_stride = 0x800;
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/* read the mapping register for the frame buffer */
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reg = pci_conf_read(&gc->gc_pc, pci_make_tag(&gc->gc_pc, 0, 14, 0),
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PCI_MAPREG_START);
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ri->ri_bits = (char *)MIPS_PHYS_TO_KSEG1(BONITO_PCILO_BASE + reg);
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ri->ri_flg = RI_CENTER | RI_NO_AUTO;
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memset(ri->ri_bits, 0, 0x200000);
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/* use as much of the screen as the font permits */
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rasops_init(ri, 30, 80);
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rasops_reconfig(ri, ri->ri_height / ri->ri_font->fontheight,
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ri->ri_width / ri->ri_font->fontwidth);
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gdium_stdscreen.nrows = ri->ri_rows;
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gdium_stdscreen.ncols = ri->ri_cols;
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gdium_stdscreen.textops = &ri->ri_ops;
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gdium_stdscreen.capabilities = ri->ri_caps;
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ri->ri_ops.allocattr(ri, 0, ri->ri_rows - 1, 0, &defattr);
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wsdisplay_preattach(&gdium_stdscreen, ri, 0, 0, defattr);
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return 0;
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}
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#else /* NWSDISPLAY > 0 */
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int
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gdium_cnattach(struct gdium_config *gc)
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{
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return -1;
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}
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#endif
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