/* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+ }, {
+ /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
+ NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
/* 480x300 @ 72 Hz, 48.0 kHz hsync */
NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
0, FB_VMODE_DOUBLE
+ }, {
+ /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */
+ NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }, {
+ /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
+ NULL, 60, 1152, 768, 15386, 158, 26, 29, 3, 136, 6,
+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
},
};
*
* Valid mode specifiers for @mode_option:
*
- * <xres>x<yres>[-<bpp>][@<refresh>] or
+ * <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m] or
* <name>[-<bpp>][@<refresh>]
*
* with <xres>, <yres>, <bpp> and <refresh> decimal numbers and
* <name> a string.
*
+ * If 'M' is present after yres (and before refresh/bpp if present),
+ * the function will compute the timings using VESA(tm) Coordinated
+ * Video Timings (CVT). If 'R' is present after 'M', will compute with
+ * reduced blanking (for flatpanels). If 'i' is present, compute
+ * interlaced mode. If 'm' is present, add margins equal to 1.8%
+ * of xres rounded down to 8 pixels, and 1.8% of yres. The char
+ * 'i' and 'm' must be after 'M' and 'R'. Example:
+ *
+ * 1024x768MR-8@60m - Reduced blank with margins at 60Hz.
+ *
* NOTE: The passed struct @var is _not_ cleared! This allows you
* to supply values for e.g. the grayscale and accel_flags fields.
*
/* Set up defaults */
if (!db) {
db = modedb;
- dbsize = sizeof(modedb)/sizeof(*modedb);
+ dbsize = ARRAY_SIZE(modedb);
}
if (!default_mode)
default_mode = &modedb[DEFAULT_MODEDB_INDEX];
unsigned int namelen = strlen(name);
int res_specified = 0, bpp_specified = 0, refresh_specified = 0;
unsigned int xres = 0, yres = 0, bpp = default_bpp, refresh = 0;
- int yres_specified = 0;
+ int yres_specified = 0, cvt = 0, rb = 0, interlace = 0, margins = 0;
u32 best, diff;
for (i = namelen-1; i >= 0; i--) {
!yres_specified) {
refresh = my_atoi(&name[i+1]);
refresh_specified = 1;
+ if (cvt || rb)
+ cvt = 0;
} else
goto done;
break;
if (!bpp_specified && !yres_specified) {
bpp = my_atoi(&name[i+1]);
bpp_specified = 1;
+ if (cvt || rb)
+ cvt = 0;
} else
goto done;
break;
break;
case '0'...'9':
break;
+ case 'M':
+ if (!yres_specified)
+ cvt = 1;
+ break;
+ case 'R':
+ if (!cvt)
+ rb = 1;
+ break;
+ case 'm':
+ if (!cvt)
+ margins = 1;
+ break;
+ case 'i':
+ if (!cvt)
+ interlace = 1;
+ break;
default:
goto done;
}
res_specified = 1;
}
done:
+ if (cvt) {
+ struct fb_videomode cvt_mode;
+ int ret;
+
+ DPRINTK("CVT mode %dx%d@%dHz%s%s%s\n", xres, yres,
+ (refresh) ? refresh : 60, (rb) ? " reduced blanking" :
+ "", (margins) ? " with margins" : "", (interlace) ?
+ " interlaced" : "");
+
+ cvt_mode.xres = xres;
+ cvt_mode.yres = yres;
+ cvt_mode.refresh = (refresh) ? refresh : 60;
+
+ if (interlace)
+ cvt_mode.vmode |= FB_VMODE_INTERLACED;
+ else
+ cvt_mode.vmode &= ~FB_VMODE_INTERLACED;
+
+ ret = fb_find_mode_cvt(&cvt_mode, margins, rb);
+
+ if (!ret && !fb_try_mode(var, info, &cvt_mode, bpp)) {
+ DPRINTK("modedb CVT: CVT mode ok\n");
+ return 1;
+ }
+
+ DPRINTK("CVT mode invalid, getting mode from database\n");
+ }
+
DPRINTK("Trying specified video mode%s %ix%i\n",
refresh_specified ? "" : " (ignoring refresh rate)", xres, yres);
mode->sync = var->sync;
mode->vmode = var->vmode & FB_VMODE_MASK;
mode->flag = FB_MODE_IS_FROM_VAR;
+ mode->refresh = 0;
+
if (!var->pixclock)
return;
}
/**
- * fb_find_nearest_mode - find mode closest video mode
+ * fb_find_nearest_mode - find closest videomode
*
- * @var: pointer to struct fb_var_screeninfo
+ * @mode: pointer to struct fb_videomode
* @head: pointer to modelist
*
* Finds best matching videomode, smaller or greater in dimension.
* If more than 1 videomode is found, will return the videomode with
- * the closest refresh rate
+ * the closest refresh rate.
*/
-struct fb_videomode *fb_find_nearest_mode(struct fb_var_screeninfo *var,
+struct fb_videomode *fb_find_nearest_mode(struct fb_videomode *mode,
struct list_head *head)
{
struct list_head *pos;
struct fb_modelist *modelist;
- struct fb_videomode *mode, *best = NULL;
+ struct fb_videomode *cmode, *best = NULL;
u32 diff = -1, diff_refresh = -1;
list_for_each(pos, head) {
u32 d;
modelist = list_entry(pos, struct fb_modelist, list);
- mode = &modelist->mode;
+ cmode = &modelist->mode;
- d = abs(mode->xres - var->xres) +
- abs(mode->yres - var->yres);
+ d = abs(cmode->xres - mode->xres) +
+ abs(cmode->yres - mode->yres);
if (diff > d) {
diff = d;
- best = mode;
+ best = cmode;
} else if (diff == d) {
- d = abs(mode->refresh - best->refresh);
+ d = abs(cmode->refresh - mode->refresh);
if (diff_refresh > d) {
diff_refresh = d;
- best = mode;
+ best = cmode;
}
}
}
}
}
+struct fb_videomode *fb_find_best_display(struct fb_monspecs *specs,
+ struct list_head *head)
+{
+ struct list_head *pos;
+ struct fb_modelist *modelist;
+ struct fb_videomode *m, *m1 = NULL, *md = NULL, *best = NULL;
+ int first = 0;
+
+ if (!head->prev || !head->next || list_empty(head))
+ goto finished;
+
+ /* get the first detailed mode and the very first mode */
+ list_for_each(pos, head) {
+ modelist = list_entry(pos, struct fb_modelist, list);
+ m = &modelist->mode;
+
+ if (!first) {
+ m1 = m;
+ first = 1;
+ }
+
+ if (m->flag & FB_MODE_IS_FIRST) {
+ md = m;
+ break;
+ }
+ }
+
+ /* first detailed timing is preferred */
+ if (specs->misc & FB_MISC_1ST_DETAIL) {
+ best = md;
+ goto finished;
+ }
+
+ /* find best mode based on display width and height */
+ if (specs->max_x && specs->max_y) {
+ struct fb_var_screeninfo var;
+
+ memset(&var, 0, sizeof(struct fb_var_screeninfo));
+ var.xres = (specs->max_x * 7200)/254;
+ var.yres = (specs->max_y * 7200)/254;
+ m = fb_find_best_mode(&var, head);
+ if (m) {
+ best = m;
+ goto finished;
+ }
+ }
+
+ /* use first detailed mode */
+ if (md) {
+ best = md;
+ goto finished;
+ }
+
+ /* last resort, use the very first mode */
+ best = m1;
+finished:
+ return best;
+}
+EXPORT_SYMBOL(fb_find_best_display);
+
EXPORT_SYMBOL(fb_videomode_to_var);
EXPORT_SYMBOL(fb_var_to_videomode);
EXPORT_SYMBOL(fb_mode_is_equal);
git://git.onelab.eu / linux-2.6.git / blobdiff