*
* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
* This is a from-scratch implementation of fbset; but the de facto fbset
* implementation was a good reference. fbset (original) is released under
- * the GPL, and is (c) 1995-1999 by:
+ * the GPL, and is (c) 1995-1999 by:
* Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
*/
#include <errno.h>
#include <ctype.h>
#include <string.h>
+#include <stdint.h>
#include <sys/ioctl.h>
#include "busybox.h"
-#define DEFAULTFBDEV "/dev/fb0"
+#define DEFAULTFBDEV FB_0
#define DEFAULTFBMODE "/etc/fb.modes"
-static const int OPT_CHANGE = (1 << 0);
-static const int OPT_INFO = (1 << 1);
-static const int OPT_READMODE = (1 << 2);
-
enum {
+ OPT_CHANGE = (1 << 0),
+ OPT_INFO = (1 << 1),
+ OPT_READMODE = (1 << 2),
+
CMD_FB = 1,
CMD_DB = 2,
CMD_GEOMETRY = 3,
CMD_VSYNC = 7,
CMD_LACED = 8,
CMD_DOUBLE = 9,
-/* CMD_XCOMPAT = 10, */
+/* CMD_XCOMPAT = 10, */
CMD_ALL = 11,
CMD_INFO = 12,
CMD_CHANGE = 13,
static unsigned int g_options = 0;
/* Stuff stolen from the kernel's fb.h */
-static const int FBIOGET_VSCREENINFO = 0x4600;
-static const int FBIOPUT_VSCREENINFO = 0x4601;
-#define __u32 u_int32_t
+enum {
+ FBIOGET_VSCREENINFO = 0x4600,
+ FBIOPUT_VSCREENINFO = 0x4601
+};
struct fb_bitfield {
- __u32 offset; /* beginning of bitfield */
- __u32 length; /* length of bitfield */
- __u32 msb_right; /* != 0 : Most significant bit is */
- /* right */
+ uint32_t offset; /* beginning of bitfield */
+ uint32_t length; /* length of bitfield */
+ uint32_t msb_right; /* != 0 : Most significant bit is */
+ /* right */
};
struct fb_var_screeninfo {
- __u32 xres; /* visible resolution */
- __u32 yres;
- __u32 xres_virtual; /* virtual resolution */
- __u32 yres_virtual;
- __u32 xoffset; /* offset from virtual to visible */
- __u32 yoffset; /* resolution */
+ uint32_t xres; /* visible resolution */
+ uint32_t yres;
+ uint32_t xres_virtual; /* virtual resolution */
+ uint32_t yres_virtual;
+ uint32_t xoffset; /* offset from virtual to visible */
+ uint32_t yoffset; /* resolution */
- __u32 bits_per_pixel; /* guess what */
- __u32 grayscale; /* != 0 Graylevels instead of colors */
+ uint32_t bits_per_pixel; /* guess what */
+ uint32_t grayscale; /* != 0 Graylevels instead of colors */
struct fb_bitfield red; /* bitfield in fb mem if true color, */
struct fb_bitfield green; /* else only length is significant */
struct fb_bitfield blue;
- struct fb_bitfield transp; /* transparency */
+ struct fb_bitfield transp; /* transparency */
- __u32 nonstd; /* != 0 Non standard pixel format */
+ uint32_t nonstd; /* != 0 Non standard pixel format */
- __u32 activate; /* see FB_ACTIVATE_* */
+ uint32_t activate; /* see FB_ACTIVATE_* */
- __u32 height; /* height of picture in mm */
- __u32 width; /* width of picture in mm */
+ uint32_t height; /* height of picture in mm */
+ uint32_t width; /* width of picture in mm */
- __u32 accel_flags; /* acceleration flags (hints) */
+ uint32_t accel_flags; /* acceleration flags (hints) */
/* Timing: All values in pixclocks, except pixclock (of course) */
- __u32 pixclock; /* pixel clock in ps (pico seconds) */
- __u32 left_margin; /* time from sync to picture */
- __u32 right_margin; /* time from picture to sync */
- __u32 upper_margin; /* time from sync to picture */
- __u32 lower_margin;
- __u32 hsync_len; /* length of horizontal sync */
- __u32 vsync_len; /* length of vertical sync */
- __u32 sync; /* see FB_SYNC_* */
- __u32 vmode; /* see FB_VMODE_* */
- __u32 reserved[6]; /* Reserved for future compatibility */
+ uint32_t pixclock; /* pixel clock in ps (pico seconds) */
+ uint32_t left_margin; /* time from sync to picture */
+ uint32_t right_margin; /* time from picture to sync */
+ uint32_t upper_margin; /* time from sync to picture */
+ uint32_t lower_margin;
+ uint32_t hsync_len; /* length of horizontal sync */
+ uint32_t vsync_len; /* length of vertical sync */
+ uint32_t sync; /* see FB_SYNC_* */
+ uint32_t vmode; /* see FB_VMODE_* */
+ uint32_t reserved[6]; /* Reserved for future compatibility */
};
-static struct cmdoptions_t {
- char *name;
- unsigned char param_count;
- unsigned char code;
+static const struct cmdoptions_t {
+ const char *name;
+ const unsigned char param_count;
+ const unsigned char code;
} g_cmdoptions[] = {
{
"-fb", 1, CMD_FB}, {
#ifdef CONFIG_FEATURE_FBSET_READMODE
/* taken from linux/fb.h */
-static const int FB_VMODE_INTERLACED = 1; /* interlaced */
-static const int FB_VMODE_DOUBLE = 2; /* double scan */
-static const int FB_SYNC_HOR_HIGH_ACT = 1; /* horizontal sync high active */
-static const int FB_SYNC_VERT_HIGH_ACT = 2; /* vertical sync high active */
-static const int FB_SYNC_EXT = 4; /* external sync */
-static const int FB_SYNC_COMP_HIGH_ACT = 8; /* composite sync high active */
+enum {
+ FB_VMODE_INTERLACED = 1, /* interlaced */
+ FB_VMODE_DOUBLE = 2, /* double scan */
+ FB_SYNC_HOR_HIGH_ACT = 1, /* horizontal sync high active */
+ FB_SYNC_VERT_HIGH_ACT = 2, /* vertical sync high active */
+ FB_SYNC_EXT = 4, /* external sync */
+ FB_SYNC_COMP_HIGH_ACT = 8 /* composite sync high active */
+};
#endif
static int readmode(struct fb_var_screeninfo *base, const char *fn,
const char *mode)
char buf[256];
char *p = buf;
- f = xfopen(fn, "r");
+ f = bb_xfopen(fn, "r");
while (!feof(f)) {
fgets(buf, sizeof(buf), f);
if ((p = strstr(buf, "mode ")) || (p = strstr(buf, "mode\t"))) {
while (!feof(f)) {
fgets(buf, sizeof(buf), f);
- if ((p = strstr(buf, "geometry "))) {
- p += 9;
-
- sscanf(p, "%d %d %d %d %d",
- &(base->xres), &(base->yres),
- &(base->xres_virtual), &(base->yres_virtual),
- &(base->bits_per_pixel));
- } else if ((p = strstr(buf, "timings "))) {
- p += 8;
-
- sscanf(p, "%d %d %d %d %d %d %d",
- &(base->pixclock),
- &(base->left_margin), &(base->right_margin),
- &(base->upper_margin), &(base->lower_margin),
- &(base->hsync_len), &(base->vsync_len));
- } else if ((p = strstr(buf, "laced "))) {
- p += 6;
-
- if (strstr(buf, "false")) {
- base->vmode &= ~FB_VMODE_INTERLACED;
- } else {
- base->vmode |= FB_VMODE_INTERLACED;
- }
- } else if ((p = strstr(buf, "double "))) {
- p += 7;
-
- if (strstr(buf, "false")) {
- base->vmode &= ~FB_VMODE_DOUBLE;
- } else {
- base->vmode |= FB_VMODE_DOUBLE;
- }
- } else if ((p = strstr(buf, "vsync "))) {
- p += 6;
-
- if (strstr(buf, "low")) {
- base->sync &= ~FB_SYNC_VERT_HIGH_ACT;
- } else {
- base->sync |= FB_SYNC_VERT_HIGH_ACT;
- }
- } else if ((p = strstr(buf, "hsync "))) {
- p += 6;
-
- if (strstr(buf, "low")) {
- base->sync &= ~FB_SYNC_HOR_HIGH_ACT;
- } else {
- base->sync |= FB_SYNC_HOR_HIGH_ACT;
- }
- } else if ((p = strstr(buf, "csync "))) {
- p += 6;
-
- if (strstr(buf, "low")) {
- base->sync &= ~FB_SYNC_COMP_HIGH_ACT;
- } else {
- base->sync |= FB_SYNC_COMP_HIGH_ACT;
- }
- } else if ((p = strstr(buf, "extsync "))) {
- p += 8;
-
- if (strstr(buf, "false")) {
- base->sync &= ~FB_SYNC_EXT;
- } else {
- base->sync |= FB_SYNC_EXT;
- }
- }
-
+ if ((p = strstr(buf, "geometry "))) {
+ p += 9;
+
+ sscanf(p, "%d %d %d %d %d",
+ &(base->xres), &(base->yres),
+ &(base->xres_virtual), &(base->yres_virtual),
+ &(base->bits_per_pixel));
+ } else if ((p = strstr(buf, "timings "))) {
+ p += 8;
+
+ sscanf(p, "%d %d %d %d %d %d %d",
+ &(base->pixclock),
+ &(base->left_margin), &(base->right_margin),
+ &(base->upper_margin), &(base->lower_margin),
+ &(base->hsync_len), &(base->vsync_len));
+ } else if ((p = strstr(buf, "laced "))) {
+ p += 6;
+
+ if (strstr(buf, "false")) {
+ base->vmode &= ~FB_VMODE_INTERLACED;
+ } else {
+ base->vmode |= FB_VMODE_INTERLACED;
+ }
+ } else if ((p = strstr(buf, "double "))) {
+ p += 7;
+
+ if (strstr(buf, "false")) {
+ base->vmode &= ~FB_VMODE_DOUBLE;
+ } else {
+ base->vmode |= FB_VMODE_DOUBLE;
+ }
+ } else if ((p = strstr(buf, "vsync "))) {
+ p += 6;
+
+ if (strstr(buf, "low")) {
+ base->sync &= ~FB_SYNC_VERT_HIGH_ACT;
+ } else {
+ base->sync |= FB_SYNC_VERT_HIGH_ACT;
+ }
+ } else if ((p = strstr(buf, "hsync "))) {
+ p += 6;
+
+ if (strstr(buf, "low")) {
+ base->sync &= ~FB_SYNC_HOR_HIGH_ACT;
+ } else {
+ base->sync |= FB_SYNC_HOR_HIGH_ACT;
+ }
+ } else if ((p = strstr(buf, "csync "))) {
+ p += 6;
+
+ if (strstr(buf, "low")) {
+ base->sync &= ~FB_SYNC_COMP_HIGH_ACT;
+ } else {
+ base->sync |= FB_SYNC_COMP_HIGH_ACT;
+ }
+ } else if ((p = strstr(buf, "extsync "))) {
+ p += 8;
+
+ if (strstr(buf, "false")) {
+ base->sync &= ~FB_SYNC_EXT;
+ } else {
+ base->sync |= FB_SYNC_EXT;
+ }
+ }
+
if (strstr(buf, "endmode"))
return 1;
}
}
}
#else
- error_msg( "mode reading not compiled in");
+ bb_error_msg( "mode reading not compiled in");
#endif
return 0;
}
-static void setmode(struct fb_var_screeninfo *base,
+static inline void setmode(struct fb_var_screeninfo *base,
struct fb_var_screeninfo *set)
{
if ((int) set->xres > 0)
base->bits_per_pixel = set->bits_per_pixel;
}
-static void showmode(struct fb_var_screeninfo *v)
+static inline void showmode(struct fb_var_screeninfo *v)
{
double drate = 0, hrate = 0, vrate = 0;
hrate / (v->upper_margin + v->yres + v->lower_margin +
v->vsync_len);
}
- printf("\nmode \"%ux%u-%u\"\n", v->xres, v->yres, (int) (vrate + 0.5));
+ printf("\nmode \"%ux%u-%u\"\n"
#ifdef CONFIG_FEATURE_FBSET_FANCY
- printf("\t# D: %.3f MHz, H: %.3f kHz, V: %.3f Hz\n", drate / 1e6,
- hrate / 1e3, vrate);
+ "\t# D: %.3f MHz, H: %.3f kHz, V: %.3f Hz\n"
#endif
- printf("\tgeometry %u %u %u %u %u\n", v->xres, v->yres,
- v->xres_virtual, v->yres_virtual, v->bits_per_pixel);
- printf("\ttimings %u %u %u %u %u %u %u\n", v->pixclock, v->left_margin,
+ "\tgeometry %u %u %u %u %u\n\ttimings %u %u %u %u %u %u %u\n\taccel %s\n\trgba %u/%u,%u/%u,%u/%u,%u/%u\nendmode\n\n",
+ v->xres, v->yres, (int) (vrate + 0.5),
+#ifdef CONFIG_FEATURE_FBSET_FANCY
+ drate / 1e6, hrate / 1e3, vrate,
+#endif
+ v->xres, v->yres, v->xres_virtual, v->yres_virtual,
+ v->bits_per_pixel, v->pixclock, v->left_margin,
v->right_margin, v->upper_margin, v->lower_margin, v->hsync_len,
- v->vsync_len);
- printf("\taccel %s\n", (v->accel_flags > 0 ? "true" : "false"));
- printf("\trgba %u/%u,%u/%u,%u/%u,%u/%u\n", v->red.length,
+ v->vsync_len, (v->accel_flags > 0 ? "true" : "false"), v->red.length,
v->red.offset, v->green.length, v->green.offset, v->blue.length,
v->blue.offset, v->transp.length, v->transp.offset);
- printf("endmode\n\n");
}
#ifdef STANDALONE
int main(int argc, char **argv)
#else
-extern int fbset_main(int argc, char **argv)
+int fbset_main(int argc, char **argv)
#endif
{
struct fb_var_screeninfo var, varset;
for (i = 0; g_cmdoptions[i].name; i++) {
if (!strcmp(thisarg, g_cmdoptions[i].name)) {
if (argc - 1 < g_cmdoptions[i].param_count)
- show_usage();
+ bb_show_usage();
switch (g_cmdoptions[i].code) {
case CMD_FB:
fbdev = argv[1];
varset.hsync_len = strtoul(argv[6], 0, 0);
varset.vsync_len = strtoul(argv[7], 0, 0);
break;
- case CMD_CHANGE:
- g_options |= OPT_CHANGE;
- break;
+ case CMD_CHANGE:
+ g_options |= OPT_CHANGE;
+ break;
#ifdef CONFIG_FEATURE_FBSET_FANCY
case CMD_XRES:
varset.xres = strtoul(argv[1], 0, 0);
case CMD_YRES:
varset.yres = strtoul(argv[1], 0, 0);
break;
+ case CMD_DEPTH:
+ varset.bits_per_pixel = strtoul(argv[1], 0, 0);
+ break;
#endif
}
argc -= g_cmdoptions[i].param_count;
mode = *argv;
g_options |= OPT_READMODE;
} else {
- show_usage();
+ bb_show_usage();
}
}
}
- if ((fh = open(fbdev, O_RDONLY)) < 0)
- perror_msg_and_die("fbset(open)");
+ fh = bb_xopen(fbdev, O_RDONLY);
if (ioctl(fh, FBIOGET_VSCREENINFO, &var))
- perror_msg_and_die("fbset(ioctl)");
+ bb_perror_msg_and_die("fbset(ioctl)");
if (g_options & OPT_READMODE) {
if (!readmode(&var, modefile, mode)) {
- error_msg("Unknown video mode `%s'", mode);
+ bb_error_msg("Unknown video mode `%s'", mode);
return EXIT_FAILURE;
}
}
setmode(&var, &varset);
if (g_options & OPT_CHANGE)
if (ioctl(fh, FBIOPUT_VSCREENINFO, &var))
- perror_msg_and_die("fbset(ioctl)");
+ bb_perror_msg_and_die("fbset(ioctl)");
showmode(&var);
/* Don't close the file, as exiting will take care of that */
/* close(fh); */
projects / oweals / busybox.git / blobdiff