[PATCH] fb_videomode_to_var: reset virtual screen parameters

[powerpc.git] / drivers / video / modedb.c

diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 26a1c61..5162eab 100644 (file)
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -12,7 +12,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/tty.h>
 #include <linux/fb.h>
 #include <linux/sched.h>
 
@@ -35,8 +34,6 @@ const char *global_mode_option;
      *  Standard video mode definitions (taken from XFree86)
      */
 
-#define DEFAULT_MODEDB_INDEX   0
-
 static const struct fb_videomode modedb[] = {
     {
        /* 640x400 @ 70 Hz, 31.5 kHz hsync */
@@ -259,6 +256,10 @@ static const struct fb_videomode modedb[] = {
        /* 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
+    }, {
+       /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
+       NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
+       0, FB_VMODE_NONINTERLACED
     },
 };
 
@@ -502,8 +503,10 @@ int fb_find_mode(struct fb_var_screeninfo *var,
        db = modedb;
        dbsize = ARRAY_SIZE(modedb);
     }
+
     if (!default_mode)
-       default_mode = &modedb[DEFAULT_MODEDB_INDEX];
+       default_mode = &db[0];
+
     if (!default_bpp)
        default_bpp = 8;
 
@@ -607,10 +610,8 @@ done:
        diff = refresh;
        best = -1;
        for (i = 0; i < dbsize; i++) {
-               if ((name_matches(db[i], name, namelen) &&
-                       !fb_try_mode(var, info, &db[i], bpp)))
-                       return 1;
-               if (res_specified && res_matches(db[i], xres, yres)) {
+               if (name_matches(db[i], name, namelen) ||
+                   (res_specified && res_matches(db[i], xres, yres))) {
                        if(!fb_try_mode(var, info, &db[i], bpp)) {
                                if(!refresh_specified || db[i].refresh == refresh)
                                        return 1;
@@ -667,7 +668,7 @@ done:
  * @var: pointer to struct fb_var_screeninfo
  */
 void fb_var_to_videomode(struct fb_videomode *mode,
-                        struct fb_var_screeninfo *var)
+                        const struct fb_var_screeninfo *var)
 {
        u32 pixclock, hfreq, htotal, vtotal;
 
@@ -711,17 +712,21 @@ void fb_var_to_videomode(struct fb_videomode *mode,
  * @mode: pointer to struct fb_videomode
  */
 void fb_videomode_to_var(struct fb_var_screeninfo *var,
-                              struct fb_videomode *mode)
+                        const struct fb_videomode *mode)
 {
        var->xres = mode->xres;
        var->yres = mode->yres;
+       var->xres_virtual = mode->xres;
+       var->yres_virtual = mode->yres;
+       var->xoffset = 0;
+       var->yoffset = 0;
        var->pixclock = mode->pixclock;
        var->left_margin = mode->left_margin;
-       var->hsync_len = mode->hsync_len;
-       var->vsync_len = mode->vsync_len;
        var->right_margin = mode->right_margin;
        var->upper_margin = mode->upper_margin;
        var->lower_margin = mode->lower_margin;
+       var->hsync_len = mode->hsync_len;
+       var->vsync_len = mode->vsync_len;
        var->sync = mode->sync;
        var->vmode = mode->vmode & FB_VMODE_MASK;
 }
@@ -734,8 +739,8 @@ void fb_videomode_to_var(struct fb_var_screeninfo *var,
  * RETURNS:
  * 1 if equal, 0 if not
  */
-int fb_mode_is_equal(struct fb_videomode *mode1,
-                    struct fb_videomode *mode2)
+int fb_mode_is_equal(const struct fb_videomode *mode1,
+                    const struct fb_videomode *mode2)
 {
        return (mode1->xres         == mode2->xres &&
                mode1->yres         == mode2->yres &&
@@ -767,8 +772,8 @@ int fb_mode_is_equal(struct fb_videomode *mode1,
  * var->xres and var->yres.  If more than 1 videomode is found, will return
  * the videomode with the highest refresh rate
  */
-struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
-                                      struct list_head *head)
+const struct fb_videomode *fb_find_best_mode(const struct fb_var_screeninfo *var,
+                                            struct list_head *head)
 {
        struct list_head *pos;
        struct fb_modelist *modelist;
@@ -787,8 +792,9 @@ struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
                        if (diff > d) {
                                diff = d;
                                best = mode;
-                       } else if (diff == d && mode->refresh > best->refresh)
-                           best = mode;
+                       } else if (diff == d && best &&
+                                  mode->refresh > best->refresh)
+                               best = mode;
                }
        }
        return best;
@@ -804,8 +810,8 @@ struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
  * If more than 1 videomode is found, will return the videomode with
  * the closest refresh rate.
  */
-struct fb_videomode *fb_find_nearest_mode(struct fb_videomode *mode,
-                                         struct list_head *head)
+const struct fb_videomode *fb_find_nearest_mode(const struct fb_videomode *mode,
+                                               struct list_head *head)
 {
        struct list_head *pos;
        struct fb_modelist *modelist;
@@ -843,8 +849,8 @@ struct fb_videomode *fb_find_nearest_mode(struct fb_videomode *mode,
  * RETURNS:
  * struct fb_videomode, NULL if none found
  */
-struct fb_videomode *fb_match_mode(struct fb_var_screeninfo *var,
-                                  struct list_head *head)
+const struct fb_videomode *fb_match_mode(const struct fb_var_screeninfo *var,
+                                        struct list_head *head)
 {
        struct list_head *pos;
        struct fb_modelist *modelist;
@@ -868,7 +874,7 @@ struct fb_videomode *fb_match_mode(struct fb_var_screeninfo *var,
  * NOTES:
  * Will only add unmatched mode entries
  */
-int fb_add_videomode(struct fb_videomode *mode, struct list_head *head)
+int fb_add_videomode(const struct fb_videomode *mode, struct list_head *head)
 {
        struct list_head *pos;
        struct fb_modelist *modelist;
@@ -903,7 +909,8 @@ int fb_add_videomode(struct fb_videomode *mode, struct list_head *head)
  * NOTES:
  * Will remove all matching mode entries
  */
-void fb_delete_videomode(struct fb_videomode *mode, struct list_head *head)
+void fb_delete_videomode(const struct fb_videomode *mode,
+                        struct list_head *head)
 {
        struct list_head *pos, *n;
        struct fb_modelist *modelist;
@@ -939,7 +946,7 @@ void fb_destroy_modelist(struct list_head *head)
  * @num: number of entries in array
  * @head: struct list_head of modelist
  */
-void fb_videomode_to_modelist(struct fb_videomode *modedb, int num,
+void fb_videomode_to_modelist(const struct fb_videomode *modedb, int num,
                              struct list_head *head)
 {
        int i;
@@ -952,12 +959,12 @@ void fb_videomode_to_modelist(struct fb_videomode *modedb, int num,
        }
 }
 
-struct fb_videomode *fb_find_best_display(struct fb_monspecs *specs,
-                                         struct list_head *head)
+const struct fb_videomode *fb_find_best_display(const 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;
+       const struct fb_videomode *m, *m1 = NULL, *md = NULL, *best = NULL;
        int first = 0;
 
        if (!head->prev || !head->next || list_empty(head))
@@ -1016,8 +1023,6 @@ EXPORT_SYMBOL(fb_videomode_to_var);
 EXPORT_SYMBOL(fb_var_to_videomode);
 EXPORT_SYMBOL(fb_mode_is_equal);
 EXPORT_SYMBOL(fb_add_videomode);
-EXPORT_SYMBOL(fb_delete_videomode);
-EXPORT_SYMBOL(fb_destroy_modelist);
 EXPORT_SYMBOL(fb_match_mode);
 EXPORT_SYMBOL(fb_find_best_mode);
 EXPORT_SYMBOL(fb_find_nearest_mode);