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 | |