video/fbdev/pvr2fb.c

255 static void set_color_bitfields(struct fb_var_screeninfo *var)
257 	switch (var->bits_per_pixel) {
260 		var->red.offset = 11;    var->red.length = 5;
261 		var->green.offset = 5;   var->green.length = 6;
262 		var->blue.offset = 0;    var->blue.length = 5;
263 		var->transp.offset = 0;  var->transp.length = 0;
266 		var->red.offset = 16;    var->red.length = 8;
267 		var->green.offset = 8;   var->green.length = 8;
268 		var->blue.offset = 0;    var->blue.length = 8;
269 		var->transp.offset = 0;  var->transp.length = 0;
273 		var->red.offset = 16;    var->red.length = 8;
274 		var->green.offset = 8;   var->green.length = 8;
275 		var->blue.offset = 0;    var->blue.length = 8;
276 		var->transp.offset = 24; var->transp.length = 8;
296 	switch (info->var.bits_per_pixel) {
315 		pr_debug("Invalid bit depth %d?!?\n", info->var.bits_per_pixel);
358 	struct fb_var_screeninfo *var = &info->var;
373 	var->vmode &= FB_VMODE_MASK;
374 	if (var->vmode & FB_VMODE_INTERLACED && video_output != VO_VGA)
380 	if (var->vmode & FB_VMODE_DOUBLE && video_output == VO_VGA)
383 	par->hsync_total = var->left_margin + var->xres + var->right_margin +
384 	                   var->hsync_len;
385 	par->vsync_total = var->upper_margin + var->yres + var->lower_margin +
386 	                   var->vsync_len;
388 	if (var->sync & FB_SYNC_BROADCAST) {
414 	par->diwstart_h = par->borderstart_h + var->left_margin;
415 	par->diwstart_v = par->borderstart_v + var->upper_margin;
416 	par->borderstop_h = par->diwstart_h + var->xres +
417 			    var->right_margin;
418 	par->borderstop_v = par->diwstart_v + var->yres +
419 			    var->lower_margin;
423 	if (info->var.xres < 640)
426 	line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);
427 	par->disp_start = info->fix.smem_start + (line_length * var->yoffset) * line_length;
432 static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
438 	if (var->pixclock != TV_CLK && var->pixclock != VGA_CLK) {
439 		pr_debug("Invalid pixclock value %d\n", var->pixclock);
443 	if (var->xres < 320)
444 		var->xres = 320;
445 	if (var->yres < 240)
446 		var->yres = 240;
447 	if (var->xres_virtual < var->xres)
448 		var->xres_virtual = var->xres;
449 	if (var->yres_virtual < var->yres)
450 		var->yres_virtual = var->yres;
452 	if (var->bits_per_pixel <= 16)
453 		var->bits_per_pixel = 16;
454 	else if (var->bits_per_pixel <= 24)
455 		var->bits_per_pixel = 24;
456 	else if (var->bits_per_pixel <= 32)
457 		var->bits_per_pixel = 32;
459 	set_color_bitfields(var);
461 	if (var->vmode & FB_VMODE_YWRAP) {
462 		if (var->xoffset || var->yoffset >= var->yres_virtual) {
463 			var->xoffset = var->yoffset = 0;
465 			if (var->xoffset > var->xres_virtual - var->xres ||
466 			    var->yoffset > var->yres_virtual - var->yres)
467 				var->xoffset = var->yoffset = 0;
470 		var->xoffset = var->yoffset = 0;
477 	if (var->yres < 480 && video_output == VO_VGA)
478 		var->vmode |= FB_VMODE_DOUBLE;
481 		var->sync |= FB_SYNC_BROADCAST;
482 		var->vmode |= FB_VMODE_INTERLACED;
484 		var->sync &= ~FB_SYNC_BROADCAST;
485 		var->vmode &= ~FB_VMODE_INTERLACED;
486 		var->vmode |= FB_VMODE_NONINTERLACED;
489 	if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_TEST) {
490 		var->right_margin = par->borderstop_h -
491 				   (par->diwstart_h + var->xres);
492 		var->left_margin  = par->diwstart_h - par->borderstart_h;
493 		var->hsync_len    = par->borderstart_h +
496 		var->upper_margin = par->diwstart_v - par->borderstart_v;
497 		var->lower_margin = par->borderstop_v -
498 				   (par->diwstart_v + var->yres);
499 		var->vsync_len    = par->borderstop_v +
503 	hsync_total = var->left_margin + var->xres + var->right_margin +
504 		      var->hsync_len;
505 	vtotal = var->upper_margin + var->yres + var->lower_margin +
506 		 var->vsync_len;
508 	if (var->sync & FB_SYNC_BROADCAST) {
509 		if (var->vmode & FB_VMODE_INTERLACED)
528 	line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);
529 	if (line_length * var->yres_virtual > info->fix.smem_len)
538 	struct fb_var_screeninfo *var = &info->var;
543 		  get_line_length(var->xoffset+var->xres, var->bits_per_pixel),
556 	struct fb_var_screeninfo *var = &info->var;
558 	unsigned int bytesperpixel = var->bits_per_pixel >> 3;
568 	diw_height = (par->is_interlaced ? var->yres / 2 : var->yres);
569 	diw_width = get_line_length(var->xres, var->bits_per_pixel) / 4;
576 	          get_line_length(var->xoffset+var->xres, var->bits_per_pixel),
823 	if (!fb_find_mode(&fb_info->var, fb_info, mode_option, pvr2_modedb,
825 		fb_info->var = pvr2_var;
834 	modememused = get_line_length(fb_info->var.xres_virtual,
835 				      fb_info->var.bits_per_pixel);
836 	modememused *= fb_info->var.yres_virtual;
845 		fb_info->var.xres, fb_info->var.yres,
846 		fb_info->var.bits_per_pixel,
847 		get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel),