1 /* $NetBSD: gdium_genfb.c,v 1.6 2011/07/10 00:03:53 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: gdium_genfb.c,v 1.6 2011/07/10 00:03:53 matt Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/buf.h> 35 #include <sys/bus.h> 36 #include <sys/conf.h> 37 #include <sys/device.h> 38 #include <sys/ioctl.h> 39 #include <sys/kernel.h> 40 #include <sys/malloc.h> 41 #include <sys/systm.h> 42 43 #include <dev/wscons/wsconsio.h> 44 #include <dev/wscons/wsdisplayvar.h> 45 #include <dev/rasops/rasops.h> 46 #include <dev/wsfont/wsfont.h> 47 #include <dev/wscons/wsdisplay_vconsvar.h> 48 49 #include <mips/bonito/bonitoreg.h> 50 #include <evbmips/gdium/gdiumvar.h> 51 #include <dev/pci/pcireg.h> 52 #include <dev/pci/pcivar.h> 53 54 #include "wsdisplay.h" 55 56 /* we need a wsdisplay to do anything halfway useful */ 57 #if NWSDISPLAY > 0 58 59 static struct vcons_screen gdium_console_screen; 60 61 static struct wsscreen_descr gdium_stdscreen = { 62 .name = "std", 63 }; 64 65 int 66 gdium_cnattach(struct gdium_config *gc) 67 { 68 struct rasops_info * const ri = &gdium_console_screen.scr_ri; 69 long defattr; 70 pcireg_t reg; 71 72 wsfont_init(); 73 74 /* set up rasops */ 75 ri->ri_width = 1024; 76 ri->ri_height = 600; 77 ri->ri_depth = 16; 78 ri->ri_stride = 0x800; 79 80 /* read the mapping register for the frame buffer */ 81 reg = pci_conf_read(&gc->gc_pc, pci_make_tag(&gc->gc_pc, 0, 14, 0), 82 PCI_MAPREG_START); 83 84 ri->ri_bits = (char *)MIPS_PHYS_TO_KSEG1(BONITO_PCILO_BASE + reg); 85 ri->ri_flg = RI_CENTER | RI_NO_AUTO; 86 87 memset(ri->ri_bits, 0, 0x200000); 88 89 /* use as much of the screen as the font permits */ 90 rasops_init(ri, 30, 80); 91 92 rasops_reconfig(ri, ri->ri_height / ri->ri_font->fontheight, 93 ri->ri_width / ri->ri_font->fontwidth); 94 95 gdium_stdscreen.nrows = ri->ri_rows; 96 gdium_stdscreen.ncols = ri->ri_cols; 97 gdium_stdscreen.textops = &ri->ri_ops; 98 gdium_stdscreen.capabilities = ri->ri_caps; 99 100 ri->ri_ops.allocattr(ri, 0, ri->ri_rows - 1, 0, &defattr); 101 102 wsdisplay_preattach(&gdium_stdscreen, ri, 0, 0, defattr); 103 104 return 0; 105 } 106 #else /* NWSDISPLAY > 0 */ 107 int 108 gdium_cnattach(struct gdium_config *gc) 109 { 110 return -1; 111 } 112 #endif 113