diff options
Diffstat (limited to 'util-linux/fbset.c')
| -rw-r--r-- | util-linux/fbset.c | 416 |
1 files changed, 203 insertions, 213 deletions
diff --git a/util-linux/fbset.c b/util-linux/fbset.c index 9ca3e1b..bc8ec18 100644 --- a/util-linux/fbset.c +++ b/util-linux/fbset.c @@ -70,94 +70,92 @@ enum { FBIOPUT_VSCREENINFO = 0x4601 }; struct fb_bitfield { - uint32_t offset; /* beginning of bitfield */ - uint32_t length; /* length of bitfield */ - uint32_t 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 { - uint32_t xres; /* visible resolution */ + uint32_t xres; /* visible resolution */ uint32_t yres; - uint32_t xres_virtual; /* virtual resolution */ + uint32_t xres_virtual; /* virtual resolution */ uint32_t yres_virtual; - uint32_t xoffset; /* offset from virtual to visible */ - uint32_t yoffset; /* resolution */ + uint32_t xoffset; /* offset from virtual to visible */ + uint32_t yoffset; /* resolution */ - uint32_t bits_per_pixel; /* guess what */ - uint32_t grayscale; /* != 0 Graylevels instead of colors */ + uint32_t bits_per_pixel; + 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 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 */ - uint32_t nonstd; /* != 0 Non standard pixel format */ + uint32_t nonstd; /* !=0 Non standard pixel format */ - uint32_t activate; /* see FB_ACTIVATE_* */ + uint32_t activate; /* see FB_ACTIVATE_x */ - uint32_t height; /* height of picture in mm */ - uint32_t width; /* width of picture in mm */ + uint32_t height; /* height of picture in mm */ + uint32_t width; /* width of picture in mm */ uint32_t accel_flags; /* acceleration flags (hints) */ /* Timing: All values in pixclocks, except pixclock (of course) */ - 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 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 */ + uint32_t hsync_len; /* length of horizontal sync */ + uint32_t vsync_len; /* length of vertical sync */ + uint32_t sync; /* see FB_SYNC_x */ + uint32_t vmode; /* see FB_VMODE_x */ + uint32_t reserved[6]; /* Reserved for future compatibility */ }; static const struct cmdoptions_t { - const char *name; + const char name[10]; const unsigned char param_count; const unsigned char code; } g_cmdoptions[] = { - { - "-fb", 1, CMD_FB}, { - "-db", 1, CMD_DB}, { - "-a", 0, CMD_ALL}, { - "-i", 0, CMD_INFO}, { - "-g", 5, CMD_GEOMETRY}, { - "-t", 7, CMD_TIMING}, { - "-accel", 1, CMD_ACCEL}, { - "-hsync", 1, CMD_HSYNC}, { - "-vsync", 1, CMD_VSYNC}, { - "-laced", 1, CMD_LACED}, { - "-double", 1, CMD_DOUBLE}, { - "-n", 0, CMD_CHANGE}, { + { "-fb", 1, CMD_FB }, + { "-db", 1, CMD_DB }, + { "-a", 0, CMD_ALL }, + { "-i", 0, CMD_INFO }, + { "-g", 5, CMD_GEOMETRY }, + { "-t", 7, CMD_TIMING }, + { "-accel", 1, CMD_ACCEL }, + { "-hsync", 1, CMD_HSYNC }, + { "-vsync", 1, CMD_VSYNC }, + { "-laced", 1, CMD_LACED }, + { "-double", 1, CMD_DOUBLE }, + { "-n", 0, CMD_CHANGE }, #ifdef CONFIG_FEATURE_FBSET_FANCY - "-all", 0, CMD_ALL}, { - "-xres", 1, CMD_XRES}, { - "-yres", 1, CMD_YRES}, { - "-vxres", 1, CMD_VXRES}, { - "-vyres", 1, CMD_VYRES}, { - "-depth", 1, CMD_DEPTH}, { - "-match", 0, CMD_MATCH}, { - "-geometry", 5, CMD_GEOMETRY}, { - "-pixclock", 1, CMD_PIXCLOCK}, { - "-left", 1, CMD_LEFT}, { - "-right", 1, CMD_RIGHT}, { - "-upper", 1, CMD_UPPER}, { - "-lower", 1, CMD_LOWER}, { - "-hslen", 1, CMD_HSLEN}, { - "-vslen", 1, CMD_VSLEN}, { - "-timings", 7, CMD_TIMING}, { - "-csync", 1, CMD_CSYNC}, { - "-gsync", 1, CMD_GSYNC}, { - "-extsync", 1, CMD_EXTSYNC}, { - "-bcast", 1, CMD_BCAST}, { - "-rgba", 1, CMD_RGBA}, { - "-step", 1, CMD_STEP}, { - "-move", 1, CMD_MOVE}, { + { "-all", 0, CMD_ALL }, + { "-xres", 1, CMD_XRES }, + { "-yres", 1, CMD_YRES }, + { "-vxres", 1, CMD_VXRES }, + { "-vyres", 1, CMD_VYRES }, + { "-depth", 1, CMD_DEPTH }, + { "-match", 0, CMD_MATCH }, + { "-geometry", 5, CMD_GEOMETRY }, + { "-pixclock", 1, CMD_PIXCLOCK }, + { "-left", 1, CMD_LEFT }, + { "-right", 1, CMD_RIGHT }, + { "-upper", 1, CMD_UPPER }, + { "-lower", 1, CMD_LOWER }, + { "-hslen", 1, CMD_HSLEN }, + { "-vslen", 1, CMD_VSLEN }, + { "-timings", 7, CMD_TIMING }, + { "-csync", 1, CMD_CSYNC }, + { "-gsync", 1, CMD_GSYNC }, + { "-extsync", 1, CMD_EXTSYNC }, + { "-bcast", 1, CMD_BCAST }, + { "-rgba", 1, CMD_RGBA }, + { "-step", 1, CMD_STEP }, + { "-move", 1, CMD_MOVE }, #endif - 0, 0, 0} + { "", 0, 0 } }; #ifdef CONFIG_FEATURE_FBSET_READMODE @@ -171,6 +169,7 @@ enum { 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) { @@ -182,89 +181,82 @@ static int readmode(struct fb_var_screeninfo *base, const char *fn, f = xfopen(fn, "r"); while (!feof(f)) { fgets(buf, sizeof(buf), f); - if ((p = strstr(buf, "mode ")) || (p = strstr(buf, "mode\t"))) { - p += 5; - if ((p = strstr(buf, mode))) { - p += strlen(mode); - if (!isspace(*p) && (*p != 0) && (*p != '"') - && (*p != '\r') && (*p != '\n')) - continue; /* almost, but not quite */ - 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 (strstr(buf, "endmode")) - return 1; + if (!(p = strstr(buf, "mode ")) && !(p = strstr(buf, "mode\t"))) + continue; + p += 5; + if (!(p = strstr(buf, mode))) + continue; + p += strlen(mode); + if (!isspace(*p) && (*p != 0) && (*p != '"') + && (*p != '\r') && (*p != '\n')) + continue; /* almost, but not quite */ + + while (!feof(f)) { + fgets(buf, sizeof(buf), f); + if ((p = strstr(buf, "geometry "))) { + p += 9; + /* FIXME: catastrophic on arches with 64bit ints */ + 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 - bb_error_msg( "mode reading not compiled in"); + bb_error_msg("mode reading not compiled in"); #endif return 0; } @@ -290,28 +282,28 @@ static inline void showmode(struct fb_var_screeninfo *v) if (v->pixclock) { drate = 1e12 / v->pixclock; - hrate = - drate / (v->left_margin + v->xres + v->right_margin + - v->hsync_len); - vrate = - hrate / (v->upper_margin + v->yres + v->lower_margin + - v->vsync_len); + hrate = drate / (v->left_margin + v->xres + v->right_margin + v->hsync_len); + vrate = hrate / (v->upper_margin + v->yres + v->lower_margin + v->vsync_len); } printf("\nmode \"%ux%u-%u\"\n" #ifdef CONFIG_FEATURE_FBSET_FANCY "\t# D: %.3f MHz, H: %.3f kHz, V: %.3f Hz\n" #endif - "\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), + "\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\n" + "endmode\n\n", + v->xres, v->yres, (int) (vrate + 0.5), #ifdef CONFIG_FEATURE_FBSET_FANCY - drate / 1e6, hrate / 1e3, vrate, + 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, (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); + 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, + (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); } #ifdef STANDALONE @@ -332,73 +324,71 @@ int fbset_main(int argc, char **argv) argv++; argc--; for (; argc > 0 && (thisarg = *argv); argc--, argv++) { - for (i = 0; g_cmdoptions[i].name; i++) { - if (!strcmp(thisarg, g_cmdoptions[i].name)) { - if (argc - 1 < g_cmdoptions[i].param_count) - bb_show_usage(); - switch (g_cmdoptions[i].code) { - case CMD_FB: - fbdev = argv[1]; - break; - case CMD_DB: - modefile = argv[1]; - break; - case CMD_GEOMETRY: - varset.xres = strtoul(argv[1], 0, 0); - varset.yres = strtoul(argv[2], 0, 0); - varset.xres_virtual = strtoul(argv[3], 0, 0); - varset.yres_virtual = strtoul(argv[4], 0, 0); - varset.bits_per_pixel = strtoul(argv[5], 0, 0); - break; - case CMD_TIMING: - varset.pixclock = strtoul(argv[1], 0, 0); - varset.left_margin = strtoul(argv[2], 0, 0); - varset.right_margin = strtoul(argv[3], 0, 0); - varset.upper_margin = strtoul(argv[4], 0, 0); - varset.lower_margin = strtoul(argv[5], 0, 0); - varset.hsync_len = strtoul(argv[6], 0, 0); - varset.vsync_len = strtoul(argv[7], 0, 0); - break; - case CMD_ALL: - g_options |= OPT_ALL; - break; - case CMD_CHANGE: - g_options |= OPT_CHANGE; - break; + for (i = 0; g_cmdoptions[i].name[0]; i++) { + if (strcmp(thisarg, g_cmdoptions[i].name)) + continue; + if (argc-1 < g_cmdoptions[i].param_count) + bb_show_usage(); + + switch (g_cmdoptions[i].code) { + case CMD_FB: + fbdev = argv[1]; + break; + case CMD_DB: + modefile = argv[1]; + break; + case CMD_GEOMETRY: + varset.xres = strtoul(argv[1], 0, 0); + varset.yres = strtoul(argv[2], 0, 0); + varset.xres_virtual = strtoul(argv[3], 0, 0); + varset.yres_virtual = strtoul(argv[4], 0, 0); + varset.bits_per_pixel = strtoul(argv[5], 0, 0); + break; + case CMD_TIMING: + varset.pixclock = strtoul(argv[1], 0, 0); + varset.left_margin = strtoul(argv[2], 0, 0); + varset.right_margin = strtoul(argv[3], 0, 0); + varset.upper_margin = strtoul(argv[4], 0, 0); + varset.lower_margin = strtoul(argv[5], 0, 0); + varset.hsync_len = strtoul(argv[6], 0, 0); + varset.vsync_len = strtoul(argv[7], 0, 0); + break; + case CMD_ALL: + g_options |= OPT_ALL; + break; + case CMD_CHANGE: + g_options |= OPT_CHANGE; + break; #ifdef CONFIG_FEATURE_FBSET_FANCY - case CMD_XRES: - varset.xres = strtoul(argv[1], 0, 0); - break; - 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; - argv += g_cmdoptions[i].param_count; + case CMD_XRES: + varset.xres = strtoul(argv[1], 0, 0); break; + 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; + argv += g_cmdoptions[i].param_count; + break; } - if (!g_cmdoptions[i].name) { - if (argc == 1) { - mode = *argv; - g_options |= OPT_READMODE; - } else { + if (!g_cmdoptions[i].name[0]) { + if (argc != 1) bb_show_usage(); - } + mode = *argv; + g_options |= OPT_READMODE; } } fh = xopen(fbdev, O_RDONLY); if (ioctl(fh, FBIOGET_VSCREENINFO, &var)) - bb_perror_msg_and_die("fbset(ioctl)"); + bb_perror_msg_and_die("ioctl(%sT_VSCREENINFO)", "GE"); if (g_options & OPT_READMODE) { if (!readmode(&var, modefile, mode)) { - bb_error_msg("unknown video mode '%s'", mode); - return EXIT_FAILURE; + bb_error_msg_and_die("unknown video mode '%s'", mode); } } @@ -407,7 +397,7 @@ int fbset_main(int argc, char **argv) if (g_options & OPT_ALL) var.activate = FB_ACTIVATE_ALL; if (ioctl(fh, FBIOPUT_VSCREENINFO, &var)) - bb_perror_msg_and_die("fbset(ioctl)"); + bb_perror_msg_and_die("ioctl(%sT_VSCREENINFO)", "PU"); } showmode(&var); /* Don't close the file, as exiting will take care of that */ |