| 1 | /* $NetBSD: genfb_machdep.c,v 1.11 2013/07/25 15:09:27 macallan 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 1.11 2013/07/25 15:09:27 macallan Exp $" ); |
| 35 | |
| 36 | #include "opt_mtrr.h" |
| 37 | |
| 38 | #include <sys/param.h> |
| 39 | #include <sys/conf.h> |
| 40 | #include <sys/device.h> |
| 41 | #include <sys/ioctl.h> |
| 42 | #include <sys/kernel.h> |
| 43 | #include <sys/lwp.h> |
| 44 | |
| 45 | #include <sys/bus.h> |
| 46 | #include <machine/bootinfo.h> |
| 47 | #include <machine/mtrr.h> |
| 48 | |
| 49 | #include <dev/wscons/wsconsio.h> |
| 50 | #include <dev/wscons/wsdisplayvar.h> |
| 51 | #include <dev/rasops/rasops.h> |
| 52 | #include <dev/wsfont/wsfont.h> |
| 53 | #include <dev/wscons/wsdisplay_vconsvar.h> |
| 54 | |
| 55 | #include <dev/wsfb/genfbvar.h> |
| 56 | #include <arch/x86/include/genfb_machdep.h> |
| 57 | |
| 58 | #include "wsdisplay.h" |
| 59 | #include "genfb.h" |
| 60 | #include "acpica.h" |
| 61 | |
| 62 | #if NWSDISPLAY > 0 && NGENFB > 0 |
| 63 | struct vcons_screen x86_genfb_console_screen; |
| 64 | |
| 65 | #if NACPICA > 0 |
| 66 | extern int acpi_md_vesa_modenum; |
| 67 | #endif |
| 68 | |
| 69 | static device_t x86_genfb_console_dev = NULL; |
| 70 | |
| 71 | static struct wsscreen_descr x86_genfb_stdscreen = { |
| 72 | "std" , |
| 73 | 0, 0, |
| 74 | 0, |
| 75 | 0, 0, |
| 76 | 0, |
| 77 | NULL |
| 78 | }; |
| 79 | |
| 80 | void |
| 81 | x86_genfb_set_console_dev(device_t dev) |
| 82 | { |
| 83 | KASSERT(x86_genfb_console_dev == NULL); |
| 84 | x86_genfb_console_dev = dev; |
| 85 | } |
| 86 | |
| 87 | void |
| 88 | x86_genfb_ddb_trap_callback(int where) |
| 89 | { |
| 90 | if (x86_genfb_console_dev == NULL) |
| 91 | return; |
| 92 | |
| 93 | if (where) { |
| 94 | genfb_enable_polling(x86_genfb_console_dev); |
| 95 | } else { |
| 96 | genfb_disable_polling(x86_genfb_console_dev); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | void |
| 101 | x86_genfb_mtrr_init(uint64_t physaddr, uint32_t size) |
| 102 | { |
| 103 | #if notyet |
| 104 | #ifdef MTRR |
| 105 | struct mtrr mtrr; |
| 106 | int error, n; |
| 107 | |
| 108 | if (mtrr_funcs == NULL) { |
| 109 | aprint_debug("%s: no mtrr funcs\n" , __func__); |
| 110 | return; |
| 111 | } |
| 112 | |
| 113 | mtrr.base = physaddr; |
| 114 | mtrr.len = size; |
| 115 | mtrr.type = MTRR_TYPE_WC; |
| 116 | mtrr.flags = MTRR_VALID; |
| 117 | mtrr.owner = 0; |
| 118 | |
| 119 | aprint_debug("%s: 0x%" PRIx64 "-0x%" PRIx64 "\n" , __func__, |
| 120 | mtrr.base, mtrr.base + mtrr.len - 1); |
| 121 | |
| 122 | n = 1; |
| 123 | KERNEL_LOCK(1, NULL); |
| 124 | error = mtrr_set(&mtrr, &n, curlwp->l_proc, MTRR_GETSET_KERNEL); |
| 125 | if (n != 0) |
| 126 | mtrr_commit(); |
| 127 | KERNEL_UNLOCK_ONE(NULL); |
| 128 | |
| 129 | aprint_debug("%s: mtrr_set returned %d\n" , __func__, error); |
| 130 | #else |
| 131 | aprint_debug("%s: kernel lacks MTRR option\n" , __func__); |
| 132 | #endif |
| 133 | #endif |
| 134 | } |
| 135 | |
| 136 | int |
| 137 | x86_genfb_cnattach(void) |
| 138 | { |
| 139 | static int ncalls = 0; |
| 140 | struct rasops_info *ri = &x86_genfb_console_screen.scr_ri; |
| 141 | const struct btinfo_framebuffer *fbinfo; |
| 142 | bus_space_tag_t t = x86_bus_space_mem; |
| 143 | bus_space_handle_t h; |
| 144 | void *bits; |
| 145 | long defattr; |
| 146 | int err; |
| 147 | |
| 148 | /* XXX jmcneill |
| 149 | * Defer console initialization until UVM is initialized |
| 150 | */ |
| 151 | ++ncalls; |
| 152 | if (ncalls < 3) |
| 153 | return -1; |
| 154 | |
| 155 | memset(&x86_genfb_console_screen, 0, sizeof(x86_genfb_console_screen)); |
| 156 | |
| 157 | fbinfo = lookup_bootinfo(BTINFO_FRAMEBUFFER); |
| 158 | if (fbinfo == NULL || fbinfo->physaddr == 0) |
| 159 | return 0; |
| 160 | |
| 161 | err = _x86_memio_map(t, (bus_addr_t)fbinfo->physaddr, |
| 162 | fbinfo->height * fbinfo->stride, |
| 163 | BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE, &h); |
| 164 | if (err) { |
| 165 | aprint_error("x86_genfb_cnattach: couldn't map framebuffer\n" ); |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | bits = bus_space_vaddr(t, h); |
| 170 | if (bits == NULL) { |
| 171 | aprint_error("x86_genfb_cnattach: couldn't get fb vaddr\n" ); |
| 172 | return 0; |
| 173 | } |
| 174 | |
| 175 | #if NACPICA > 0 |
| 176 | acpi_md_vesa_modenum = fbinfo->vbemode; |
| 177 | #endif |
| 178 | |
| 179 | wsfont_init(); |
| 180 | |
| 181 | ri->ri_width = fbinfo->width; |
| 182 | ri->ri_height = fbinfo->height; |
| 183 | ri->ri_depth = fbinfo->depth; |
| 184 | ri->ri_stride = fbinfo->stride; |
| 185 | ri->ri_bits = bits; |
| 186 | ri->ri_flg = RI_CENTER | RI_FULLCLEAR | RI_CLEAR; |
| 187 | rasops_init(ri, ri->ri_width / 8, ri->ri_height / 8); |
| 188 | ri->ri_caps = WSSCREEN_WSCOLORS; |
| 189 | rasops_reconfig(ri, ri->ri_height / ri->ri_font->fontheight, |
| 190 | ri->ri_width / ri->ri_font->fontwidth); |
| 191 | |
| 192 | x86_genfb_stdscreen.nrows = ri->ri_rows; |
| 193 | x86_genfb_stdscreen.ncols = ri->ri_cols; |
| 194 | x86_genfb_stdscreen.textops = &ri->ri_ops; |
| 195 | x86_genfb_stdscreen.capabilities = ri->ri_caps; |
| 196 | |
| 197 | ri->ri_ops.allocattr(ri, 0, 0, 0, &defattr); |
| 198 | wsdisplay_preattach(&x86_genfb_stdscreen, ri, 0, 0, defattr); |
| 199 | |
| 200 | return 1; |
| 201 | } |
| 202 | #else /* NWSDISPLAY > 0 && NGENFB > 0 */ |
| 203 | int |
| 204 | x86_genfb_cnattach(void) |
| 205 | { |
| 206 | return 0; |
| 207 | } |
| 208 | #endif |
| 209 | |