source: MondoRescue/branches/stable/mindi-busybox/util-linux/fbset.c @ 1770

Last change on this file since 1770 was 1770, checked in by Bruno Cornec, 12 years ago
  • Better output for mindi-busybox revision
  • Remove dummy file created on NFS - report from Arnaud Tiger <arnaud.tiger_at_hp.com>
  • strace useful for debug
  • fix new versions for pb (2.0.0 for mindi and 1.7.2 for mindi-busybox)
  • fix build process for mindi-busybox + options used in that version (dd for label-partitions-as-necessary)
  • fix typo in label-partitions-as-necessary which doesn't seem to work
  • Update to busybox 1.7.2
  • perl is now required at restore time to support uuid swap partitions (and will be used for many other thigs

in the future for sure)

  • next mindi version will be 2.0.0 due to all the changes made in it (udev may break working distros)
  • small optimization in mindi on keyboard handling (one single find instead of multiple)
  • better interaction for USB device when launching mindi manually
  • attempt to automatically guess block disk size for ramdisk
  • fix typos in bkphw
  • Fix the remaining problem with UUID support for swap partitions
  • Updates mondoarchive man page for USB support
  • Adds preliminary Hardware support to mindi (Proliant SSSTK)
  • Tries to add udev support also for rhel4
  • Fix UUID support which was still broken.
  • Be conservative in test for the start-nfs script
  • Update config file for mindi-busybox for 1.7.2 migration
  • Try to run around a busybox bug (1.2.2 pb on inexistant links)
  • Add build content for mindi-busybox in pb
  • Remove distributions content for mindi-busybox
  • Fix a warning on inexistant raidtab
  • Solve problem on tmpfs in restore init (Problem of inexistant symlink and busybox)
  • Create MONDO_CACHE and use it everywhere + creation at start
  • Really never try to eject a USB device
  • Fix a issue with &> usage (replaced with 1> and 2>)
  • Adds magic file to depllist in order to have file working + ldd which helps for debugging issues
  • tty modes correct to avoid sh error messages
  • Use ext3 normally and not ext2 instead
  • USB device should be corrected after reading (take 1st part)
  • Adds a mount_USB_here function derived from mount_CDROM_here
  • usb detection place before /dev detection in device name at restore time
  • Fix when restoring from USB: media is asked in interactive mode
  • Adds USB support for mondorestore
  • mount_cdrom => mount_media
  • elilo.efi is now searched throughout /boot/efi and not in a fixed place as there is no standard
  • untar-and-softlink => untar (+ interface change)
  • suppress useless softlinks creation/removal in boot process
  • avoids udevd messages on groups
  • Increase # of disks to 99 as in mindi at restore time (should be a conf file parameter)
  • skip existing big file creation
  • seems to work correctly for USB mindi boot
  • Adds group and tty link to udev conf
  • Always load usb-torage (even 2.6) to initiate USB bus discovery
  • Better printing of messages
  • Attempt to fix a bug in supporting OpenSusE 10.3 kernel for initramfs (mindi may now use multiple regex for kernel initrd detection)
  • Links were not correctly done as non relative for modules in mindi
  • exclusion of modules denied now works
  • Also create modules in their ordinary place, so that classical modprobe works + copy modules.dep
  • Fix bugs for DENY_MODS handling
  • Add device /dev/console for udev
  • ide-generic should now really be excluded
  • Fix a bug in major number for tty
  • If udev then adds modprobe/insmod to rootfs
  • tty0 is also cretaed with udev
  • ide-generic put rather in DENY_MODS
  • udevd remove from deplist s handled in mindi directly
  • better default for mindi when using --usb
  • Handles dynamically linked busybox (in case we want to use it soon ;-)
  • Adds fixed devices to create for udev
  • ide-generic should not be part of the initrd when using libata v2
  • support a dynamically linked udev (case on Ubuntu 7.10 and Mandriva 2008.0 so should be quite generic) This will give incitation to move to dyn. linked binaries in the initrd which will help for other tasks (ia6 4)
  • Improvement in udev support (do not use cl options not available in busybox)
  • Udev in mindi
    • auto creation of the right links at boot time with udev-links.conf(from Mandriva 2008.0)
    • rework startup of udev as current makes kernel crash (from Mandriva 2008.0)
    • add support for 64 bits udev
  • Try to render MyInsmod? silent at boot time
  • Adds udev support (mandatory for newest distributions to avoid remapping of devices in a different way as on the original system)
  • We also need vaft format support for USB boot
  • Adds libusual support (Ubuntu 7.10 needs it for USB)
  • Improve Ubuntu/Debian? keyboard detection and support
  • pbinit adapted to new pb (0.8.10). Filtering of docs done in it
  • Suppress some mondo warnings and errors on USB again
  • Tries to fix lack of files in deb mindi package
  • Verify should now work for USB devices
  • More log/mesages improvement for USB support
  • - Supress g_erase_tmpdir_and_scratchdir
  • Improve some log messages for USB support
  • Try to improve install in mindi to avoid issues with isolinux.cfg not installed vene if in the pkg :-(
  • Improve mindi-busybox build
  • In conformity with pb 0.8.9
  • Add support for Ubuntu 7.10 in build process
  • Add USB Key button to Menu UI (CD streamer removed)
  • Attempt to fix error messages on tmp/scratch files at the end by removing those dir at the latest possible.
  • Fix a bug linked to the size of the -E param which could be used (Arnaud Tiger/René? Ribaud).
  • Integrate ~/.pbrc content into mondorescue.pb (required project-builder >= 0.8.7)
  • Put mondorescue in conformity with new pb filtering rules
  • Add USB support at restore time (no test done yet). New start-usb script PB varibale added where useful
  • Unmounting USB device before removal of temporary scratchdir
  • Stil refining USB copy back to mondo (one command was not executed)
  • No need to have the image subdor in the csratchdir when USB.
  • umount the USB partition before attempting to use it
  • Remove useless copy from mindi to mondo at end of USB handling

(risky merge, we are raising the limits of 2 diverging branches. The status of stable is not completely sure as such. Will need lots of tests, but it's not yet done :-()
(merge -r1692:1769 $SVN_M/branches/2.2.5)

File size: 10.9 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Mini fbset implementation for busybox
4 *
5 * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
6 *
7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8 *
9 * This is a from-scratch implementation of fbset; but the de facto fbset
10 * implementation was a good reference. fbset (original) is released under
11 * the GPL, and is (c) 1995-1999 by:
12 *     Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
13 */
14
15#include "libbb.h"
16
17#define DEFAULTFBDEV  FB_0
18#define DEFAULTFBMODE "/etc/fb.modes"
19
20enum {
21    OPT_CHANGE   = (1 << 0),
22    OPT_INFO     = (1 << 1),
23    OPT_READMODE = (1 << 2),
24    OPT_ALL      = (1 << 9),
25
26    CMD_FB = 1,
27    CMD_DB = 2,
28    CMD_GEOMETRY = 3,
29    CMD_TIMING = 4,
30    CMD_ACCEL = 5,
31    CMD_HSYNC = 6,
32    CMD_VSYNC = 7,
33    CMD_LACED = 8,
34    CMD_DOUBLE = 9,
35/*  CMD_XCOMPAT =     10, */
36    CMD_ALL = 11,
37    CMD_INFO = 12,
38    CMD_CHANGE = 13,
39
40#if ENABLE_FEATURE_FBSET_FANCY
41    CMD_XRES = 100,
42    CMD_YRES = 101,
43    CMD_VXRES = 102,
44    CMD_VYRES = 103,
45    CMD_DEPTH = 104,
46    CMD_MATCH = 105,
47    CMD_PIXCLOCK = 106,
48    CMD_LEFT = 107,
49    CMD_RIGHT = 108,
50    CMD_UPPER = 109,
51    CMD_LOWER = 110,
52    CMD_HSLEN = 111,
53    CMD_VSLEN = 112,
54    CMD_CSYNC = 113,
55    CMD_GSYNC = 114,
56    CMD_EXTSYNC = 115,
57    CMD_BCAST = 116,
58    CMD_RGBA = 117,
59    CMD_STEP = 118,
60    CMD_MOVE = 119,
61#endif
62};
63
64static unsigned g_options;
65
66/* Stuff stolen from the kernel's fb.h */
67#define FB_ACTIVATE_ALL 64
68enum {
69    FBIOGET_VSCREENINFO = 0x4600,
70    FBIOPUT_VSCREENINFO = 0x4601
71};
72struct fb_bitfield {
73    uint32_t offset;                /* beginning of bitfield */
74    uint32_t length;        /* length of bitfield */
75    uint32_t msb_right;             /* !=0: Most significant bit is right */
76};
77struct fb_var_screeninfo {
78    uint32_t xres;                  /* visible resolution */
79    uint32_t yres;
80    uint32_t xres_virtual;          /* virtual resolution */
81    uint32_t yres_virtual;
82    uint32_t xoffset;               /* offset from virtual to visible */
83    uint32_t yoffset;               /* resolution */
84
85    uint32_t bits_per_pixel;
86    uint32_t grayscale;             /* !=0 Graylevels instead of colors */
87
88    struct fb_bitfield red;         /* bitfield in fb mem if true color, */
89    struct fb_bitfield green;       /* else only length is significant */
90    struct fb_bitfield blue;
91    struct fb_bitfield transp;      /* transparency */
92
93    uint32_t nonstd;                /* !=0 Non standard pixel format */
94
95    uint32_t activate;              /* see FB_ACTIVATE_x */
96
97    uint32_t height;                /* height of picture in mm */
98    uint32_t width;                 /* width of picture in mm */
99
100    uint32_t accel_flags;       /* acceleration flags (hints)   */
101
102    /* Timing: All values in pixclocks, except pixclock (of course) */
103    uint32_t pixclock;              /* pixel clock in ps (pico seconds) */
104    uint32_t left_margin;           /* time from sync to picture */
105    uint32_t right_margin;          /* time from picture to sync */
106    uint32_t upper_margin;          /* time from sync to picture */
107    uint32_t lower_margin;
108    uint32_t hsync_len;             /* length of horizontal sync */
109    uint32_t vsync_len;             /* length of vertical sync */
110    uint32_t sync;                  /* see FB_SYNC_x */
111    uint32_t vmode;                 /* see FB_VMODE_x */
112    uint32_t reserved[6];           /* Reserved for future compatibility */
113};
114
115
116static const struct cmdoptions_t {
117    const char name[10];
118    const unsigned char param_count;
119    const unsigned char code;
120} g_cmdoptions[] = {
121    { "-fb", 1, CMD_FB },
122    { "-db", 1, CMD_DB },
123    { "-a", 0, CMD_ALL },
124    { "-i", 0, CMD_INFO },
125    { "-g", 5, CMD_GEOMETRY },
126    { "-t", 7, CMD_TIMING },
127    { "-accel", 1, CMD_ACCEL },
128    { "-hsync", 1, CMD_HSYNC },
129    { "-vsync", 1, CMD_VSYNC },
130    { "-laced", 1, CMD_LACED },
131    { "-double", 1, CMD_DOUBLE },
132    { "-n", 0, CMD_CHANGE },
133#if ENABLE_FEATURE_FBSET_FANCY
134    { "-all", 0, CMD_ALL },
135    { "-xres", 1, CMD_XRES },
136    { "-yres", 1, CMD_YRES },
137    { "-vxres", 1, CMD_VXRES },
138    { "-vyres", 1, CMD_VYRES },
139    { "-depth", 1, CMD_DEPTH },
140    { "-match", 0, CMD_MATCH },
141    { "-geometry", 5, CMD_GEOMETRY },
142    { "-pixclock", 1, CMD_PIXCLOCK },
143    { "-left", 1, CMD_LEFT },
144    { "-right", 1, CMD_RIGHT },
145    { "-upper", 1, CMD_UPPER },
146    { "-lower", 1, CMD_LOWER },
147    { "-hslen", 1, CMD_HSLEN },
148    { "-vslen", 1, CMD_VSLEN },
149    { "-timings", 7, CMD_TIMING },
150    { "-csync", 1, CMD_CSYNC },
151    { "-gsync", 1, CMD_GSYNC },
152    { "-extsync", 1, CMD_EXTSYNC },
153    { "-bcast", 1, CMD_BCAST },
154    { "-rgba", 1, CMD_RGBA },
155    { "-step", 1, CMD_STEP },
156    { "-move", 1, CMD_MOVE },
157#endif
158    { "", 0, 0 }
159};
160
161#if ENABLE_FEATURE_FBSET_READMODE
162/* taken from linux/fb.h */
163enum {
164    FB_VMODE_INTERLACED = 1,    /* interlaced   */
165    FB_VMODE_DOUBLE = 2,    /* double scan */
166    FB_SYNC_HOR_HIGH_ACT = 1,   /* horizontal sync high active  */
167    FB_SYNC_VERT_HIGH_ACT = 2,  /* vertical sync high active    */
168    FB_SYNC_EXT = 4,    /* external sync        */
169    FB_SYNC_COMP_HIGH_ACT = 8   /* composite sync high active   */
170};
171#endif
172
173static int readmode(struct fb_var_screeninfo *base, const char *fn,
174                    const char *mode)
175{
176#if ENABLE_FEATURE_FBSET_READMODE
177    FILE *f;
178    char buf[256];
179    char *p = buf;
180
181    f = xfopen(fn, "r");
182    while (!feof(f)) {
183        fgets(buf, sizeof(buf), f);
184        if (!(p = strstr(buf, "mode ")) && !(p = strstr(buf, "mode\t")))
185            continue;
186        p += 5;
187        if (!(p = strstr(buf, mode)))
188            continue;
189        p += strlen(mode);
190        if (!isspace(*p) && (*p != 0) && (*p != '"')
191                && (*p != '\r') && (*p != '\n'))
192            continue;   /* almost, but not quite */
193
194        while (!feof(f)) {
195            fgets(buf, sizeof(buf), f);
196            if ((p = strstr(buf, "geometry "))) {
197                p += 9;
198                /* FIXME: catastrophic on arches with 64bit ints */
199                sscanf(p, "%d %d %d %d %d",
200                    &(base->xres), &(base->yres),
201                    &(base->xres_virtual), &(base->yres_virtual),
202                    &(base->bits_per_pixel));
203            } else if ((p = strstr(buf, "timings "))) {
204                p += 8;
205                sscanf(p, "%d %d %d %d %d %d %d",
206                    &(base->pixclock),
207                    &(base->left_margin), &(base->right_margin),
208                    &(base->upper_margin), &(base->lower_margin),
209                    &(base->hsync_len), &(base->vsync_len));
210            } else if ((p = strstr(buf, "laced "))) {
211                //p += 6;
212                if (strstr(buf, "false")) {
213                    base->vmode &= ~FB_VMODE_INTERLACED;
214                } else {
215                    base->vmode |= FB_VMODE_INTERLACED;
216                }
217            } else if ((p = strstr(buf, "double "))) {
218                //p += 7;
219                if (strstr(buf, "false")) {
220                    base->vmode &= ~FB_VMODE_DOUBLE;
221                } else {
222                    base->vmode |= FB_VMODE_DOUBLE;
223                }
224            } else if ((p = strstr(buf, "vsync "))) {
225                //p += 6;
226                if (strstr(buf, "low")) {
227                    base->sync &= ~FB_SYNC_VERT_HIGH_ACT;
228                } else {
229                    base->sync |= FB_SYNC_VERT_HIGH_ACT;
230                }
231            } else if ((p = strstr(buf, "hsync "))) {
232                //p += 6;
233                if (strstr(buf, "low")) {
234                    base->sync &= ~FB_SYNC_HOR_HIGH_ACT;
235                } else {
236                    base->sync |= FB_SYNC_HOR_HIGH_ACT;
237                }
238            } else if ((p = strstr(buf, "csync "))) {
239                //p += 6;
240                if (strstr(buf, "low")) {
241                    base->sync &= ~FB_SYNC_COMP_HIGH_ACT;
242                } else {
243                    base->sync |= FB_SYNC_COMP_HIGH_ACT;
244                }
245            } else if ((p = strstr(buf, "extsync "))) {
246                //p += 8;
247                if (strstr(buf, "false")) {
248                    base->sync &= ~FB_SYNC_EXT;
249                } else {
250                    base->sync |= FB_SYNC_EXT;
251                }
252            }
253
254            if (strstr(buf, "endmode"))
255                return 1;
256        }
257    }
258#else
259    bb_error_msg("mode reading not compiled in");
260#endif
261    return 0;
262}
263
264static inline void setmode(struct fb_var_screeninfo *base,
265                    struct fb_var_screeninfo *set)
266{
267    if ((int) set->xres > 0)
268        base->xres = set->xres;
269    if ((int) set->yres > 0)
270        base->yres = set->yres;
271    if ((int) set->xres_virtual > 0)
272        base->xres_virtual = set->xres_virtual;
273    if ((int) set->yres_virtual > 0)
274        base->yres_virtual = set->yres_virtual;
275    if ((int) set->bits_per_pixel > 0)
276        base->bits_per_pixel = set->bits_per_pixel;
277}
278
279static inline void showmode(struct fb_var_screeninfo *v)
280{
281    double drate = 0, hrate = 0, vrate = 0;
282
283    if (v->pixclock) {
284        drate = 1e12 / v->pixclock;
285        hrate = drate / (v->left_margin + v->xres + v->right_margin + v->hsync_len);
286        vrate = hrate / (v->upper_margin + v->yres + v->lower_margin + v->vsync_len);
287    }
288    printf("\nmode \"%ux%u-%u\"\n"
289#if ENABLE_FEATURE_FBSET_FANCY
290    "\t# D: %.3f MHz, H: %.3f kHz, V: %.3f Hz\n"
291#endif
292    "\tgeometry %u %u %u %u %u\n"
293    "\ttimings %u %u %u %u %u %u %u\n"
294    "\taccel %s\n"
295    "\trgba %u/%u,%u/%u,%u/%u,%u/%u\n"
296    "endmode\n\n",
297        v->xres, v->yres, (int) (vrate + 0.5),
298#if ENABLE_FEATURE_FBSET_FANCY
299        drate / 1e6, hrate / 1e3, vrate,
300#endif
301        v->xres, v->yres, v->xres_virtual, v->yres_virtual, v->bits_per_pixel,
302        v->pixclock, v->left_margin, v->right_margin, v->upper_margin, v->lower_margin,
303            v->hsync_len, v->vsync_len,
304        (v->accel_flags > 0 ? "true" : "false"),
305        v->red.length, v->red.offset, v->green.length, v->green.offset,
306            v->blue.length, v->blue.offset, v->transp.length, v->transp.offset);
307}
308
309#ifdef STANDALONE
310int main(int argc, char **argv)
311#else
312int fbset_main(int argc, char **argv);
313int fbset_main(int argc, char **argv)
314#endif
315{
316    struct fb_var_screeninfo var, varset;
317    int fh, i;
318    const char *fbdev = DEFAULTFBDEV;
319    const char *modefile = DEFAULTFBMODE;
320    char *thisarg, *mode = NULL;
321
322    memset(&varset, 0xFF, sizeof(varset));
323
324    /* parse cmd args.... why do they have to make things so difficult? */
325    argv++;
326    argc--;
327    for (; argc > 0 && (thisarg = *argv); argc--, argv++) {
328        for (i = 0; g_cmdoptions[i].name[0]; i++) {
329            if (strcmp(thisarg, g_cmdoptions[i].name))
330                continue;
331            if (argc-1 < g_cmdoptions[i].param_count)
332                bb_show_usage();
333
334            switch (g_cmdoptions[i].code) {
335            case CMD_FB:
336                fbdev = argv[1];
337                break;
338            case CMD_DB:
339                modefile = argv[1];
340                break;
341            case CMD_GEOMETRY:
342                varset.xres = xatou32(argv[1]);
343                varset.yres = xatou32(argv[2]);
344                varset.xres_virtual = xatou32(argv[3]);
345                varset.yres_virtual = xatou32(argv[4]);
346                varset.bits_per_pixel = xatou32(argv[5]);
347                break;
348            case CMD_TIMING:
349                varset.pixclock = xatou32(argv[1]);
350                varset.left_margin = xatou32(argv[2]);
351                varset.right_margin = xatou32(argv[3]);
352                varset.upper_margin = xatou32(argv[4]);
353                varset.lower_margin = xatou32(argv[5]);
354                varset.hsync_len = xatou32(argv[6]);
355                varset.vsync_len = xatou32(argv[7]);
356                break;
357            case CMD_ALL:
358                g_options |= OPT_ALL;
359                break;
360            case CMD_CHANGE:
361                g_options |= OPT_CHANGE;
362                break;
363#if ENABLE_FEATURE_FBSET_FANCY
364            case CMD_XRES:
365                varset.xres = xatou32(argv[1]);
366                break;
367            case CMD_YRES:
368                varset.yres = xatou32(argv[1]);
369                break;
370            case CMD_DEPTH:
371                varset.bits_per_pixel = xatou32(argv[1]);
372                break;
373#endif
374            }
375            argc -= g_cmdoptions[i].param_count;
376            argv += g_cmdoptions[i].param_count;
377            break;
378        }
379        if (!g_cmdoptions[i].name[0]) {
380            if (argc != 1)
381                bb_show_usage();
382            mode = *argv;
383            g_options |= OPT_READMODE;
384        }
385    }
386
387    fh = xopen(fbdev, O_RDONLY);
388    xioctl(fh, FBIOGET_VSCREENINFO, &var);
389    if (g_options & OPT_READMODE) {
390        if (!readmode(&var, modefile, mode)) {
391            bb_error_msg_and_die("unknown video mode '%s'", mode);
392        }
393    }
394
395    setmode(&var, &varset);
396    if (g_options & OPT_CHANGE) {
397        if (g_options & OPT_ALL)
398            var.activate = FB_ACTIVATE_ALL;
399        xioctl(fh, FBIOPUT_VSCREENINFO, &var);
400    }
401    showmode(&var);
402    /* Don't close the file, as exiting will take care of that */
403    /* close(fh); */
404
405    return EXIT_SUCCESS;
406}
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