Imported Upstream version 1.15.1
[deb_xorg-server.git] / hw / xfree86 / os-support / solaris / sun_init.c
CommitLineData
a09e091a
JB
1/*
2 * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
3 * Copyright 1993 by David Wexelblat <dwex@goblin.org>
4 * Copyright 1999 by David Holland <davidh@iquest.net>
5 *
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that copyright
9 * notice and this permission notice appear in supporting documentation, and
10 * that the names of the copyright holders not be used in advertising or
11 * publicity pertaining to distribution of the software without specific,
12 * written prior permission. The copyright holders make no representations
13 * about the suitability of this software for any purpose. It is provided "as
14 * is" without express or implied warranty.
15 *
16 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND IN NO
18 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
22 * OF THIS SOFTWARE.
23 */
24
25#ifdef HAVE_XORG_CONFIG_H
26#include <xorg-config.h>
27#endif
28
29#include "xf86.h"
30#include "xf86Priv.h"
31#include "xf86_OSlib.h"
32#ifdef HAVE_SYS_KD_H
33#include <sys/kd.h>
34#endif
35
36/*
37 * Applications see VT number as consecutive integers starting from 1.
38 * VT number VT device
39 * -------------------------------------------------------
40 * 1 : /dev/vt/0 (Alt + Ctrl + F1)
41 * 2 : /dev/vt/2 (Alt + Ctrl + F2)
42 * 3 : /dev/vt/3 (Alt + Ctrl + F3)
43 * ... ...
44 */
45#define CONSOLE_VTNO 1
46#define SOL_CONSOLE_DEV "/dev/console"
47
48static Bool KeepTty = FALSE;
49static Bool Protect0 = FALSE;
50static Bool UseConsole = FALSE;
51
52#ifdef HAS_USL_VTS
53static int VTnum = -1;
54static int xf86StartVT = -1;
55static int vtEnabled = 0;
56extern void xf86VTAcquire(int);
57extern void xf86VTRelease(int);
58#endif
59
60/* Device to open as xf86Info.consoleFd */
61static char consoleDev[PATH_MAX] = "/dev/fb";
62
63/* Set by -dev argument on CLI
64 Used by hw/xfree86/common/xf86AutoConfig.c for VIS_GETIDENTIFIER */
65_X_HIDDEN char xf86SolarisFbDev[PATH_MAX] = "/dev/fb";
66
67static void
68switch_to(int vt, const char *from)
69{
70 int ret;
71
72 SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_ACTIVATE, vt));
73 if (ret != 0)
74 xf86Msg(X_WARNING, "%s: VT_ACTIVATE failed: %s\n",
75 from, strerror(errno));
76
77 SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_WAITACTIVE, vt));
78 if (ret != 0)
79 xf86Msg(X_WARNING, "%s: VT_WAITACTIVE failed: %s\n",
80 from, strerror(errno));
81}
82
83void
84xf86OpenConsole(void)
85{
86 int i;
87
88#ifdef HAS_USL_VTS
89 int fd;
90 struct vt_mode VT;
91 struct vt_stat vtinfo;
92 MessageType from = X_PROBED;
93#endif
94
95 if (serverGeneration == 1) {
96 /* Check if we're run with euid==0 */
97 if (geteuid() != 0)
98 FatalError("xf86OpenConsole: Server must be suid root\n");
99
100 /* Protect page 0 to help find NULL dereferencing */
101 /* mprotect() doesn't seem to work */
102 if (Protect0) {
103 int fd = -1;
104
105 if ((fd = open("/dev/zero", O_RDONLY, 0)) < 0) {
106 xf86Msg(X_WARNING,
107 "xf86OpenConsole: cannot open /dev/zero (%s)\n",
108 strerror(errno));
109 }
110 else {
111 if (mmap(0, 0x1000, PROT_NONE,
112 MAP_FIXED | MAP_SHARED, fd, 0) == MAP_FAILED)
113 xf86Msg(X_WARNING,
114 "xf86OpenConsole: failed to protect page 0 (%s)\n",
115 strerror(errno));
116
117 close(fd);
118 }
119 }
120
121#ifdef HAS_USL_VTS
122
123 /*
124 * Setup the virtual terminal manager
125 */
126 if ((fd = open("/dev/vt/0", O_RDWR, 0)) == -1) {
127 xf86ErrorF("xf86OpenConsole: Cannot open /dev/vt/0 (%s)\n",
128 strerror(errno));
129 vtEnabled = 0;
130 }
131 else {
132 if (ioctl(fd, VT_ENABLED, &vtEnabled) < 0) {
133 xf86ErrorF("xf86OpenConsole: VT_ENABLED failed (%s)\n",
134 strerror(errno));
135 vtEnabled = 0;
136 }
137 }
138#endif /* HAS_USL_VTS */
139
140 if (UseConsole) {
141 strlcpy(consoleDev, SOL_CONSOLE_DEV, sizeof(consoleDev));
142
143#ifdef HAS_USL_VTS
144 xf86Info.vtno = CONSOLE_VTNO;
145
146 if (vtEnabled == 0) {
147 xf86StartVT = 0;
148 }
149 else {
150 if (ioctl(fd, VT_GETSTATE, &vtinfo) < 0)
151 FatalError
152 ("xf86OpenConsole: Cannot determine current VT\n");
153 xf86StartVT = vtinfo.v_active;
154 }
155#endif /* HAS_USL_VTS */
156 goto OPENCONSOLE;
157 }
158
159#ifdef HAS_USL_VTS
160 if (vtEnabled == 0) {
161 /* VT not enabled - kernel too old or Sparc platforms
162 without visual_io support */
163 xf86Msg(from, "VT infrastructure is not available\n");
164
165 xf86StartVT = 0;
166 xf86Info.vtno = 0;
167 strlcpy(consoleDev, xf86SolarisFbDev, sizeof(consoleDev));
168 goto OPENCONSOLE;
169 }
170
171 if (ioctl(fd, VT_GETSTATE, &vtinfo) < 0)
172 FatalError("xf86OpenConsole: Cannot determine current VT\n");
173
174 xf86StartVT = vtinfo.v_active;
175
176 if (VTnum != -1) {
177 xf86Info.vtno = VTnum;
178 from = X_CMDLINE;
179 }
180 else if (xf86Info.ShareVTs) {
181 xf86Info.vtno = vtinfo.v_active;
182 from = X_CMDLINE;
183 }
184 else {
185 if ((ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0) ||
186 (xf86Info.vtno == -1)) {
187 FatalError("xf86OpenConsole: Cannot find a free VT\n");
188 }
189 }
190
191 xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
192 snprintf(consoleDev, PATH_MAX, "/dev/vt/%d", xf86Info.vtno);
193
194 if (fd != -1) {
195 close(fd);
196 }
197
198#endif /* HAS_USL_VTS */
199
200 OPENCONSOLE:
201 if (!KeepTty)
202 setpgrp();
203
204 if (((xf86Info.consoleFd = open(consoleDev, O_RDWR | O_NDELAY, 0)) < 0))
205 FatalError("xf86OpenConsole: Cannot open %s (%s)\n",
206 consoleDev, strerror(errno));
207
208 /* Change ownership of the vt or console */
209 chown(consoleDev, getuid(), getgid());
210
211#ifdef HAS_USL_VTS
212 if (xf86Info.ShareVTs)
213 return;
214
215 if (vtEnabled) {
216 /*
217 * Now get the VT
218 */
219 switch_to(xf86Info.vtno, "xf86OpenConsole");
220
221#ifdef VT_SET_CONSUSER /* added in snv_139 */
222 if (strcmp(display, "0") == 0)
223 if (ioctl(xf86Info.consoleFd, VT_SET_CONSUSER) != 0)
224 xf86Msg(X_WARNING,
225 "xf86OpenConsole: VT_SET_CONSUSER failed\n");
226#endif
227
228 if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0)
229 FatalError("xf86OpenConsole: VT_GETMODE failed\n");
230
231 OsSignal(SIGUSR1, xf86VTAcquire);
232 OsSignal(SIGUSR2, xf86VTRelease);
233
234 VT.mode = VT_PROCESS;
235 VT.acqsig = SIGUSR1;
236 VT.relsig = SIGUSR2;
237
238 if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0)
239 FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed\n");
240
241 if (ioctl(xf86Info.consoleFd, VT_SETDISPINFO, atoi(display)) < 0)
242 xf86Msg(X_WARNING, "xf86OpenConsole: VT_SETDISPINFO failed\n");
243 }
244#endif
245
246#ifdef KDSETMODE
247 SYSCALL(i = ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS));
248 if (i < 0) {
249 xf86Msg(X_WARNING,
250 "xf86OpenConsole: KDSETMODE KD_GRAPHICS failed on %s (%s)\n",
251 consoleDev, strerror(errno));
252 }
253#endif
254 }
255 else { /* serverGeneration != 1 */
256
257#ifdef HAS_USL_VTS
258 if (vtEnabled && !xf86Info.ShareVTs) {
259 /*
260 * Now re-get the VT
261 */
262 if (xf86Info.autoVTSwitch)
263 switch_to(xf86Info.vtno, "xf86OpenConsole");
264
265#ifdef VT_SET_CONSUSER /* added in snv_139 */
266 if (strcmp(display, "0") == 0)
267 if (ioctl(xf86Info.consoleFd, VT_SET_CONSUSER) != 0)
268 xf86Msg(X_WARNING,
269 "xf86OpenConsole: VT_SET_CONSUSER failed\n");
270#endif
271
272 /*
273 * If the server doesn't have the VT when the reset occurs,
274 * this is to make sure we don't continue until the activate
275 * signal is received.
276 */
277 if (!xf86VTOwner())
278 sleep(5);
279 }
280#endif /* HAS_USL_VTS */
281
282 }
283}
284
285void
286xf86CloseConsole(void)
287{
288#ifdef HAS_USL_VTS
289 struct vt_mode VT;
290#endif
291
292#if !defined(__i386__) && !defined(__i386) && !defined(__x86)
293
294 if (!xf86DoConfigure) {
295 int fd;
296
297 /*
298 * Wipe out framebuffer just like the non-SI Xsun server does. This
299 * could be improved by saving framebuffer contents in
300 * xf86OpenConsole() above and restoring them here. Also, it's unclear
301 * at this point whether this should be done for all framebuffers in
302 * the system, rather than only the console.
303 */
304 if ((fd = open(xf86SolarisFbDev, O_RDWR, 0)) < 0) {
305 xf86Msg(X_WARNING,
306 "xf86CloseConsole(): unable to open framebuffer (%s)\n",
307 strerror(errno));
308 }
309 else {
310 struct fbgattr fbattr;
311
312 if ((ioctl(fd, FBIOGATTR, &fbattr) < 0) &&
313 (ioctl(fd, FBIOGTYPE, &fbattr.fbtype) < 0)) {
314 xf86Msg(X_WARNING,
315 "xf86CloseConsole(): unable to retrieve framebuffer"
316 " attributes (%s)\n", strerror(errno));
317 }
318 else {
319 pointer fbdata;
320
321 fbdata = mmap(NULL, fbattr.fbtype.fb_size,
322 PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
323 if (fbdata == MAP_FAILED) {
324 xf86Msg(X_WARNING,
325 "xf86CloseConsole(): unable to mmap framebuffer"
326 " (%s)\n", strerror(errno));
327 }
328 else {
329 memset(fbdata, 0, fbattr.fbtype.fb_size);
330 munmap(fbdata, fbattr.fbtype.fb_size);
331 }
332 }
333
334 close(fd);
335 }
336 }
337
338#endif
339
340#ifdef KDSETMODE
341 /* Reset the display back to text mode */
342 SYSCALL(ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT));
343#endif
344
345#ifdef HAS_USL_VTS
346 if (vtEnabled) {
347 if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1) {
348 VT.mode = VT_AUTO; /* Set default vt handling */
349 ioctl(xf86Info.consoleFd, VT_SETMODE, &VT);
350 }
351
352 /* Activate the VT that X was started on */
353 if (xf86Info.autoVTSwitch)
354 switch_to(xf86StartVT, "xf86CloseConsole");
355 }
356#endif /* HAS_USL_VTS */
357
358 close(xf86Info.consoleFd);
359}
360
361int
362xf86ProcessArgument(int argc, char **argv, int i)
363{
364 /*
365 * Keep server from detaching from controlling tty. This is useful when
366 * debugging, so the server can receive keyboard signals.
367 */
368 if (!strcmp(argv[i], "-keeptty")) {
369 KeepTty = TRUE;
370 return 1;
371 }
372
373 /*
374 * Undocumented flag to protect page 0 from read/write to help catch NULL
375 * pointer dereferences. This is purely a debugging flag.
376 */
377 if (!strcmp(argv[i], "-protect0")) {
378 Protect0 = TRUE;
379 return 1;
380 }
381
382 /*
383 * Use /dev/console as the console device.
384 */
385 if (!strcmp(argv[i], "-C")) {
386 UseConsole = TRUE;
387 return 1;
388 }
389
390#ifdef HAS_USL_VTS
391
392 if ((argv[i][0] == 'v') && (argv[i][1] == 't')) {
393 if (sscanf(argv[i], "vt%d", &VTnum) == 0) {
394 UseMsg();
395 VTnum = -1;
396 return 0;
397 }
398
399 return 1;
400 }
401
402#endif /* HAS_USL_VTS */
403
404 if ((i + 1) < argc) {
405 if (!strcmp(argv[i], "-dev")) {
406 strlcpy(xf86SolarisFbDev, argv[i + 1], sizeof(xf86SolarisFbDev));
407 return 2;
408 }
409 }
410
411 return 0;
412}
413
414void
415xf86UseMsg(void)
416{
417#ifdef HAS_USL_VTS
418 ErrorF("vtX Use the specified VT number\n");
419#endif
420 ErrorF("-dev <fb> Framebuffer device\n");
421 ErrorF("-keeptty Don't detach controlling tty\n");
422 ErrorF(" (for debugging only)\n");
423 ErrorF("-C Use /dev/console as the console device\n");
424}