* Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
*/
-#include "internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <ctype.h>
+#include <string.h>
#include <sys/ioctl.h>
-#include <linux/fb.h>
-#include <linux/version.h>
-
-#define PERROR(ctx) do { perror(ctx); exit(1); } while(0)
-
-#ifndef KERNEL_VERSION
-#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-#endif
+#include "busybox.h"
#define DEFAULTFBDEV "/dev/fb0"
#define DEFAULTFBMODE "/etc/fb.modes"
-#define OPT_CHANGE 1
-#define OPT_INFO (1 << 1)
-#define OPT_READMODE (1 << 2)
-
-#define CMD_HELP 0
-#define CMD_FB 1
-#define CMD_DB 2
-#define CMD_GEOMETRY 3
-#define CMD_TIMING 4
-#define CMD_ACCEL 5
-#define CMD_HSYNC 6
-#define CMD_VSYNC 7
-#define CMD_LACED 8
-#define CMD_DOUBLE 9
-/* #define CMD_XCOMPAT 10 */
-#define CMD_ALL 11
-#define CMD_INFO 12
+static const int OPT_CHANGE = (1 << 0);
+static const int OPT_INFO = (1 << 1);
+static const int OPT_READMODE = (1 << 2);
+
+enum {
+ CMD_FB = 1,
+ CMD_DB = 2,
+ CMD_GEOMETRY = 3,
+ CMD_TIMING = 4,
+ CMD_ACCEL = 5,
+ CMD_HSYNC = 6,
+ CMD_VSYNC = 7,
+ CMD_LACED = 8,
+ CMD_DOUBLE = 9,
+/* CMD_XCOMPAT = 10, */
+ CMD_ALL = 11,
+ CMD_INFO = 12,
+ CMD_CHANGE = 13,
#ifdef BB_FEATURE_FBSET_FANCY
-#define CMD_XRES 13
-#define CMD_YRES 14
-#define CMD_VXRES 15
-#define CMD_VYRES 16
-#define CMD_DEPTH 17
-#define CMD_MATCH 18
-#define CMD_PIXCLOCK 19
-#define CMD_LEFT 20
-#define CMD_RIGHT 21
-#define CMD_UPPER 22
-#define CMD_LOWER 23
-#define CMD_HSLEN 24
-#define CMD_VSLEN 25
-#define CMD_CSYNC 26
-#define CMD_GSYNC 27
-#define CMD_EXTSYNC 28
-#define CMD_BCAST 29
-#define CMD_RGBA 30
-#define CMD_STEP 31
-#define CMD_MOVE 32
+ CMD_XRES = 100,
+ CMD_YRES = 101,
+ CMD_VXRES = 102,
+ CMD_VYRES = 103,
+ CMD_DEPTH = 104,
+ CMD_MATCH = 105,
+ CMD_PIXCLOCK = 106,
+ CMD_LEFT = 107,
+ CMD_RIGHT = 108,
+ CMD_UPPER = 109,
+ CMD_LOWER = 110,
+ CMD_HSLEN = 111,
+ CMD_VSLEN = 112,
+ CMD_CSYNC = 113,
+ CMD_GSYNC = 114,
+ CMD_EXTSYNC = 115,
+ CMD_BCAST = 116,
+ CMD_RGBA = 117,
+ CMD_STEP = 118,
+ CMD_MOVE = 119,
#endif
+};
static unsigned int g_options = 0;
-struct cmdoptions_t {
+/* Stuff stolen from the kernel's fb.h */
+static const int FBIOGET_VSCREENINFO = 0x4600;
+static const int FBIOPUT_VSCREENINFO = 0x4601;
+#define __u32 unsigned int
+struct fb_bitfield {
+ __u32 offset; /* beginning of bitfield */
+ __u32 length; /* length of bitfield */
+ __u32 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 */
+
+ __u32 bits_per_pixel; /* guess what */
+ __u32 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 */
+
+ __u32 nonstd; /* != 0 Non standard pixel format */
+
+ __u32 activate; /* see FB_ACTIVATE_* */
+
+ __u32 height; /* height of picture in mm */
+ __u32 width; /* width of picture in mm */
+
+ __u32 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 */
+};
+
+
+static struct cmdoptions_t {
char *name;
unsigned char param_count;
unsigned char code;
} g_cmdoptions[] = {
{
- "-h", 0, CMD_HELP}, {
"-fb", 1, CMD_FB}, {
"-db", 1, CMD_DB}, {
"-a", 0, CMD_ALL}, {
"-vsync", 1, CMD_VSYNC}, {
"-laced", 1, CMD_LACED}, {
"-double", 1, CMD_DOUBLE}, {
- "--help", 0, CMD_HELP}, {
+ "-n", 0, CMD_CHANGE}, {
#ifdef BB_FEATURE_FBSET_FANCY
- "--help", 0, CMD_HELP}, {
"-all", 0, CMD_ALL}, {
"-xres", 1, CMD_XRES}, {
"-yres", 1, CMD_YRES}, {
"-vyres", 1, CMD_VYRES}, {
"-depth", 1, CMD_DEPTH}, {
"-match", 0, CMD_MATCH}, {
- "--geometry", 5, CMD_GEOMETRY}, {
+ "-geometry", 5, CMD_GEOMETRY}, {
"-pixclock", 1, CMD_PIXCLOCK}, {
"-left", 1, CMD_LEFT}, {
"-right", 1, CMD_RIGHT}, {
"-lower", 1, CMD_LOWER}, {
"-hslen", 1, CMD_HSLEN}, {
"-vslen", 1, CMD_VSLEN}, {
- "--timings", 7, CMD_TIMING}, {
+ "-timings", 7, CMD_TIMING}, {
"-csync", 1, CMD_CSYNC}, {
"-gsync", 1, CMD_GSYNC}, {
"-extsync", 1, CMD_EXTSYNC}, {
0, 0, 0}
};
+#ifdef BB_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 */
+#endif
static int readmode(struct fb_var_screeninfo *base, const char *fn,
const char *mode)
{
-#ifdef BB_FBSET_READMODE
+#ifdef BB_FEATURE_FBSET_READMODE
FILE *f;
char buf[256];
char *p = buf;
- if ((f = fopen(fn, "r")) == NULL)
- PERROR("readmode(fopen)");
+ f = xfopen(fn, "r");
while (!feof(f)) {
fgets(buf, sizeof(buf), f);
if ((p = strstr(buf, "mode ")) || (p = strstr(buf, "mode\t"))) {
continue; /* almost, but not quite */
while (!feof(f)) {
fgets(buf, sizeof(buf), f);
- if (!strstr(buf, "endmode"))
+
+ 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
- errorMsg( "mode reading not compiled in\n");
+ error_msg( "mode reading not compiled in");
#endif
return 0;
}
#endif
printf("\tgeometry %u %u %u %u %u\n", v->xres, v->yres,
v->xres_virtual, v->yres_virtual, v->bits_per_pixel);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
printf("\ttimings %u %u %u %u %u %u %u\n", 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"));
-#else
- printf("\ttimings %lu %lu %lu %lu %lu %lu %lu\n", v->pixclock,
- v->left_margin, v->right_margin, v->upper_margin,
- v->lower_margin, v->hsync_len, v->vsync_len);
-#endif
printf("\trgba %u/%u,%u/%u,%u/%u,%u/%u\n", 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");
}
-static void fbset_usage(void)
-{
- int i;
-
-#ifndef STANDALONE
- fprintf(stderr, "BusyBox v%s (%s) multi-call binary -- GPL2\n\n",
- BB_VER, BB_BT);
-#endif
- fprintf(stderr, "Usage: fbset [options] [mode]\n\n");
- fprintf(stderr, "Show and modify frame buffer device settings\n\n");
- fprintf(stderr, "The following options are recognized:\n");
- for (i = 0; g_cmdoptions[i].name; i++)
- fprintf(stderr, "\t%s\n", g_cmdoptions[i].name);
- exit(-1);
-}
-
#ifdef STANDALONE
int main(int argc, char **argv)
#else
for (i = 0; g_cmdoptions[i].name; i++) {
if (!strcmp(thisarg, g_cmdoptions[i].name)) {
if (argc - 1 < g_cmdoptions[i].param_count)
- fbset_usage();
+ show_usage();
switch (g_cmdoptions[i].code) {
- case CMD_HELP:
- fbset_usage();
case CMD_FB:
fbdev = argv[1];
break;
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;
#ifdef BB_FEATURE_FBSET_FANCY
case CMD_XRES:
varset.xres = strtoul(argv[1], 0, 0);
mode = *argv;
g_options |= OPT_READMODE;
} else {
- fbset_usage();
+ show_usage();
}
}
}
if ((fh = open(fbdev, O_RDONLY)) < 0)
- PERROR("fbset(open)");
+ perror_msg_and_die("fbset(open)");
if (ioctl(fh, FBIOGET_VSCREENINFO, &var))
- PERROR("fbset(ioctl)");
+ perror_msg_and_die("fbset(ioctl)");
if (g_options & OPT_READMODE) {
if (!readmode(&var, modefile, mode)) {
- fprintf(stderr, "Unknown video mode `%s'\n", mode);
- exit(1);
+ 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("fbset(ioctl)");
+ perror_msg_and_die("fbset(ioctl)");
showmode(&var);
/* Don't close the file, as exiting will take care of that */
/* close(fh); */
- exit (TRUE);
+ return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff