1 /* $NetBSD: genfb_machdep.c,v 1.4 2010/04/28 19:17:04 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 2009 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * Early attach support for raster consoles 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: genfb_machdep.c,v 1.4 2010/04/28 19:17:04 dyoung Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/conf.h> 38 #include <sys/device.h> 39 #include <sys/ioctl.h> 40 #include <sys/kernel.h> 41 42 #include <machine/bus.h> 43 #include <machine/bootinfo.h> 44 45 #include <dev/wscons/wsconsio.h> 46 #include <dev/wscons/wsdisplayvar.h> 47 #include <dev/rasops/rasops.h> 48 #include <dev/wsfont/wsfont.h> 49 #include <dev/wscons/wsdisplay_vconsvar.h> 50 51 #include <arch/x86/include/genfb_machdep.h> 52 53 #include "wsdisplay.h" 54 #include "genfb.h" 55 #include "acpica.h" 56 57 #if NWSDISPLAY > 0 && NGENFB > 0 58 struct vcons_screen x86_genfb_console_screen; 59 60 #if NACPICA > 0 61 extern int acpi_md_vesa_modenum; 62 #endif 63 64 static struct wsscreen_descr x86_genfb_stdscreen = { 65 "std", 66 0, 0, 67 0, 68 0, 0, 69 0, 70 NULL 71 }; 72 73 int 74 x86_genfb_cnattach(void) 75 { 76 static int ncalls = 0; 77 struct rasops_info *ri = &x86_genfb_console_screen.scr_ri; 78 const struct btinfo_framebuffer *fbinfo; 79 bus_space_tag_t t = x86_bus_space_mem; 80 bus_space_handle_t h; 81 void *bits; 82 long defattr; 83 int err; 84 85 /* XXX jmcneill 86 * Defer console initialization until UVM is initialized 87 */ 88 ++ncalls; 89 if (ncalls < 3) 90 return -1; 91 92 memset(&x86_genfb_console_screen, 0, sizeof(x86_genfb_console_screen)); 93 94 fbinfo = lookup_bootinfo(BTINFO_FRAMEBUFFER); 95 if (fbinfo == NULL || fbinfo->physaddr == 0) 96 return 0; 97 98 err = _x86_memio_map(t, (bus_addr_t)fbinfo->physaddr, 99 fbinfo->width * fbinfo->stride, 100 BUS_SPACE_MAP_LINEAR, &h); 101 if (err) { 102 aprint_error("x86_genfb_cnattach: couldn't map framebuffer\n"); 103 return 0; 104 } 105 106 bits = bus_space_vaddr(t, h); 107 if (bits == NULL) { 108 aprint_error("x86_genfb_cnattach: couldn't get fb vaddr\n"); 109 return 0; 110 } 111 112 #if NACPICA > 0 113 acpi_md_vesa_modenum = fbinfo->vbemode; 114 #endif 115 116 wsfont_init(); 117 118 ri->ri_width = fbinfo->width; 119 ri->ri_height = fbinfo->height; 120 ri->ri_depth = fbinfo->depth; 121 ri->ri_stride = fbinfo->stride; 122 ri->ri_bits = bits; 123 ri->ri_flg = RI_CENTER | RI_FULLCLEAR | RI_CLEAR; 124 rasops_init(ri, ri->ri_width / 8, ri->ri_height / 8); 125 ri->ri_caps = WSSCREEN_WSCOLORS; 126 rasops_reconfig(ri, ri->ri_height / ri->ri_font->fontheight, 127 ri->ri_width / ri->ri_font->fontwidth); 128 129 x86_genfb_stdscreen.nrows = ri->ri_rows; 130 x86_genfb_stdscreen.ncols = ri->ri_cols; 131 x86_genfb_stdscreen.textops = &ri->ri_ops; 132 x86_genfb_stdscreen.capabilities = ri->ri_caps; 133 134 ri->ri_ops.allocattr(ri, 0, 0, 0, &defattr); 135 wsdisplay_preattach(&x86_genfb_stdscreen, ri, 0, 0, defattr); 136 137 return 1; 138 } 139 #else /* NWSDISPLAY > 0 && NGENFB > 0 */ 140 int 141 x86_genfb_cnattach(void) 142 { 143 return 0; 144 } 145 #endif 146