82 static int vfb_get_var(struct fb_var_screeninfo *var, int con,
84 static int vfb_set_var(struct fb_var_screeninfo *var, int con,
86 static int vfb_pan_display(struct fb_var_screeninfo *var, int con,
110 			   struct fb_var_screeninfo *var);
111 static void set_color_bitfields(struct fb_var_screeninfo *var);
136     struct fb_var_screeninfo *var;  in vfb_get_fix()  local
139 	var = &vfb_default;  in vfb_get_fix()
141 	var = &fb_display[con].var;  in vfb_get_fix()
142     vfb_encode_fix(fix, var);  in vfb_get_fix()
151 static int vfb_get_var(struct fb_var_screeninfo *var, int con,  in vfb_get_var()  argument
155 	*var = vfb_default;  in vfb_get_var()
157 	*var = fb_display[con].var;  in vfb_get_var()
158     set_color_bitfields(var);  in vfb_get_var()
167 static int vfb_set_var(struct fb_var_screeninfo *var, int con,  in vfb_set_var()  argument
170     int err, activate = var->activate;  in vfb_set_var()
185     if (var->vmode & FB_VMODE_CONUPDATE) {  in vfb_set_var()
186 	var->vmode |= FB_VMODE_YWRAP;  in vfb_set_var()
187 	var->xoffset = display->var.xoffset;  in vfb_set_var()
188 	var->yoffset = display->var.yoffset;  in vfb_set_var()
194     if (!var->xres)  in vfb_set_var()
195 	var->xres = 1;  in vfb_set_var()
196     if (!var->yres)  in vfb_set_var()
197 	var->yres = 1;  in vfb_set_var()
198     if (var->xres > var->xres_virtual)  in vfb_set_var()
199 	var->xres_virtual = var->xres;  in vfb_set_var()
200     if (var->yres > var->yres_virtual)  in vfb_set_var()
201 	var->yres_virtual = var->yres;  in vfb_set_var()
202     if (var->bits_per_pixel <= 1)  in vfb_set_var()
203 	var->bits_per_pixel = 1;  in vfb_set_var()
204     else if (var->bits_per_pixel <= 8)  in vfb_set_var()
205 	var->bits_per_pixel = 8;  in vfb_set_var()
206     else if (var->bits_per_pixel <= 16)  in vfb_set_var()
207 	var->bits_per_pixel = 16;  in vfb_set_var()
210     else if (var->bits_per_pixel <= 24)  in vfb_set_var()
211 	var->bits_per_pixel = 24;  in vfb_set_var()
212     else if (var->bits_per_pixel <= 32)  in vfb_set_var()
213 	var->bits_per_pixel = 32;  in vfb_set_var()
221     line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);  in vfb_set_var()
222     if (line_length*var->yres_virtual > videomemorysize)  in vfb_set_var()
225     set_color_bitfields(var);  in vfb_set_var()
228 	oldxres = display->var.xres;  in vfb_set_var()
229 	oldyres = display->var.yres;  in vfb_set_var()
230 	oldvxres = display->var.xres_virtual;  in vfb_set_var()
231 	oldvyres = display->var.yres_virtual;  in vfb_set_var()
232 	oldbpp = display->var.bits_per_pixel;  in vfb_set_var()
233 	display->var = *var;  in vfb_set_var()
234 	if (oldxres != var->xres || oldyres != var->yres ||  in vfb_set_var()
235 	    oldvxres != var->xres_virtual || oldvyres != var->yres_virtual ||  in vfb_set_var()
236 	    oldbpp != var->bits_per_pixel) {  in vfb_set_var()
239 	    vfb_encode_fix(&fix, var);  in vfb_set_var()
249 	    switch (var->bits_per_pixel) {  in vfb_set_var()
295 	if (oldbpp != var->bits_per_pixel) {  in vfb_set_var()
311 static int vfb_pan_display(struct fb_var_screeninfo *var, int con,  in vfb_pan_display()  argument
314     if (var->vmode & FB_VMODE_YWRAP) {  in vfb_pan_display()
315 	if (var->yoffset < 0 ||  in vfb_pan_display()
316 	    var->yoffset >= fb_display[con].var.yres_virtual ||  in vfb_pan_display()
317 	    var->xoffset)  in vfb_pan_display()
320 	if (var->xoffset+fb_display[con].var.xres >  in vfb_pan_display()
321 	    fb_display[con].var.xres_virtual ||  in vfb_pan_display()
322 	    var->yoffset+fb_display[con].var.yres >  in vfb_pan_display()
323 	    fb_display[con].var.yres_virtual)  in vfb_pan_display()
326     fb_display[con].var.xoffset = var->xoffset;  in vfb_pan_display()
327     fb_display[con].var.yoffset = var->yoffset;  in vfb_pan_display()
328     if (var->vmode & FB_VMODE_YWRAP)  in vfb_pan_display()
329 	fb_display[con].var.vmode |= FB_VMODE_YWRAP;  in vfb_pan_display()
331 	fb_display[con].var.vmode &= ~FB_VMODE_YWRAP;  in vfb_pan_display()
347 	fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),  in vfb_get_cmap()
363 			      1<<fb_display[con].var.bits_per_pixel, 0)))  in vfb_set_cmap()
470 			   struct fb_var_screeninfo *var)  in vfb_encode_fix()  argument
478     switch (var->bits_per_pixel) {  in vfb_encode_fix()
496     fix->line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);  in vfb_encode_fix()
499 static void set_color_bitfields(struct fb_var_screeninfo *var)  in set_color_bitfields()  argument
501     switch (var->bits_per_pixel) {  in set_color_bitfields()
504 	    var->red.offset = 0;  in set_color_bitfields()
505 	    var->red.length = 8;  in set_color_bitfields()
506 	    var->green.offset = 0;  in set_color_bitfields()
507 	    var->green.length = 8;  in set_color_bitfields()
508 	    var->blue.offset = 0;  in set_color_bitfields()
509 	    var->blue.length = 8;  in set_color_bitfields()
510 	    var->transp.offset = 0;  in set_color_bitfields()
511 	    var->transp.length = 0;  in set_color_bitfields()
514 	    var->red.offset = 0;  in set_color_bitfields()
515 	    var->red.length = 5;  in set_color_bitfields()
516 	    var->green.offset = 5;  in set_color_bitfields()
517 	    var->green.length = 6;  in set_color_bitfields()
518 	    var->blue.offset = 11;  in set_color_bitfields()
519 	    var->blue.length = 5;  in set_color_bitfields()
520 	    var->transp.offset = 0;  in set_color_bitfields()
521 	    var->transp.length = 0;  in set_color_bitfields()
524 	    var->red.offset = 0;  in set_color_bitfields()
525 	    var->red.length = 8;  in set_color_bitfields()
526 	    var->green.offset = 8;  in set_color_bitfields()
527 	    var->green.length = 8;  in set_color_bitfields()
528 	    var->blue.offset = 16;  in set_color_bitfields()
529 	    var->blue.length = 8;  in set_color_bitfields()
530 	    var->transp.offset = 0;  in set_color_bitfields()
531 	    var->transp.length = 0;  in set_color_bitfields()
534 	    var->red.offset = 0;  in set_color_bitfields()
535 	    var->red.length = 8;  in set_color_bitfields()
536 	    var->green.offset = 8;  in set_color_bitfields()
537 	    var->green.length = 8;  in set_color_bitfields()
538 	    var->blue.offset = 16;  in set_color_bitfields()
539 	    var->blue.length = 8;  in set_color_bitfields()
540 	    var->transp.offset = 24;  in set_color_bitfields()
541 	    var->transp.length = 8;  in set_color_bitfields()
544     var->red.msb_right = 0;  in set_color_bitfields()
545     var->green.msb_right = 0;  in set_color_bitfields()
546     var->blue.msb_right = 0;  in set_color_bitfields()
547     var->transp.msb_right = 0;  in set_color_bitfields()
597 	fb_set_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel), 1,  in do_install_cmap()