114 	struct fb_var_screeninfo *var = &info->var;  in acornfb_set_timing()  local
122 	vidc.h_sync_width	= var->hsync_len - 8;  in acornfb_set_timing()
123 	vidc.h_border_start	= vidc.h_sync_width + var->left_margin + 8 - 12;  in acornfb_set_timing()
125 	vidc.h_display_end	= vidc.h_display_start + var->xres;  in acornfb_set_timing()
127 	vidc.h_cycle		= vidc.h_border_end + var->right_margin + 12 - 8;  in acornfb_set_timing()
129 	vidc.v_sync_width	= var->vsync_len - 1;  in acornfb_set_timing()
130 	vidc.v_border_start	= vidc.v_sync_width + var->upper_margin;  in acornfb_set_timing()
132 	vidc.v_display_end	= vidc.v_display_start + var->yres;  in acornfb_set_timing()
136 	vcr = var->vsync_len + var->upper_margin + var->yres +  in acornfb_set_timing()
137 	      var->lower_margin;  in acornfb_set_timing()
139 	if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {  in acornfb_set_timing()
145 	switch (var->bits_per_pixel) {  in acornfb_set_timing()
155 	acornfb_vidc20_find_rates(&vidc, var);  in acornfb_set_timing()
156 	fsize = var->vsync_len + var->upper_margin + var->lower_margin - 1;  in acornfb_set_timing()
185 	if (var->sync & FB_SYNC_COMP_HIGH_ACT) /* should be FB_SYNC_COMP */  in acornfb_set_timing()
188 		if (var->sync & FB_SYNC_HOR_HIGH_ACT)  in acornfb_set_timing()
193 		if (var->sync & FB_SYNC_VERT_HIGH_ACT)  in acornfb_set_timing()
201 	words_per_line = var->xres * var->bits_per_pixel / 32;  in acornfb_set_timing()
223 	printk(KERN_DEBUG "VIDC registers for %dx%dx%d:\n", var->xres,  in acornfb_set_timing()
224 	       var->yres, var->bits_per_pixel);  in acornfb_set_timing()
276 		pseudo_val  = regno << info->var.red.offset;  in acornfb_setcolreg()
277 		pseudo_val |= regno << info->var.green.offset;  in acornfb_setcolreg()
278 		pseudo_val |= regno << info->var.blue.offset;  in acornfb_setcolreg()
290 	if (info->var.bits_per_pixel == 16) {  in acornfb_setcolreg()
316 acornfb_adjust_timing(struct fb_info *info, struct fb_var_screeninfo *var, u_int fontht)  in acornfb_adjust_timing()  argument
321 	var->xres = (var->xres + 1) & ~1;  in acornfb_adjust_timing()
326 	var->xres_virtual = var->xres;  in acornfb_adjust_timing()
327 	var->xoffset = 0;  in acornfb_adjust_timing()
341 	font_line_len = var->xres * var->bits_per_pixel * fontht / 8;  in acornfb_adjust_timing()
342 	min_size = var->xres * var->yres * var->bits_per_pixel / 8;  in acornfb_adjust_timing()
362 	if (var->accel_flags & FB_ACCELF_TEXT) {  in acornfb_adjust_timing()
368 			var->yres_virtual = size / (font_line_len / fontht);  in acornfb_adjust_timing()
370 			var->yres_virtual = nr_y;  in acornfb_adjust_timing()
371 	} else if (var->yres_virtual > nr_y)  in acornfb_adjust_timing()
372 		var->yres_virtual = nr_y;  in acornfb_adjust_timing()
379 	if (var->yres > var->yres_virtual)  in acornfb_adjust_timing()
380 		var->yres = var->yres_virtual;  in acornfb_adjust_timing()
382 	if (var->vmode & FB_VMODE_YWRAP) {  in acornfb_adjust_timing()
383 		if (var->yoffset > var->yres_virtual)  in acornfb_adjust_timing()
384 			var->yoffset = var->yres_virtual;  in acornfb_adjust_timing()
386 		if (var->yoffset + var->yres > var->yres_virtual)  in acornfb_adjust_timing()
387 			var->yoffset = var->yres_virtual - var->yres;  in acornfb_adjust_timing()
391 	var->hsync_len = (var->hsync_len + 1) & ~1;  in acornfb_adjust_timing()
395 	if (var->left_margin & 1) {  in acornfb_adjust_timing()
396 		var->left_margin += 1;  in acornfb_adjust_timing()
397 		var->right_margin -= 1;  in acornfb_adjust_timing()
401 	if (var->right_margin & 1)  in acornfb_adjust_timing()
402 		var->right_margin += 1;  in acornfb_adjust_timing()
405 	if (var->vsync_len < 1)  in acornfb_adjust_timing()
406 		var->vsync_len = 1;  in acornfb_adjust_timing()
412 acornfb_validate_timing(struct fb_var_screeninfo *var,  in acornfb_validate_timing()  argument
424 	hs = 1953125000 / var->pixclock;  in acornfb_validate_timing()
426 	     (var->xres + var->left_margin + var->right_margin + var->hsync_len);  in acornfb_validate_timing()
428 	     (var->yres + var->upper_margin + var->lower_margin + var->vsync_len);  in acornfb_validate_timing()
435 acornfb_update_dma(struct fb_info *info, struct fb_var_screeninfo *var)  in acornfb_update_dma()  argument
437 	u_int off = var->yoffset * info->fix.line_length;  in acornfb_update_dma()
447 acornfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)  in acornfb_check_var()  argument
457 	var->red.msb_right = 0;  in acornfb_check_var()
458 	var->green.msb_right = 0;  in acornfb_check_var()
459 	var->blue.msb_right = 0;  in acornfb_check_var()
460 	var->transp.msb_right = 0;  in acornfb_check_var()
462 	switch (var->bits_per_pixel) {  in acornfb_check_var()
464 		var->red.offset    = 0;  in acornfb_check_var()
465 		var->red.length    = var->bits_per_pixel;  in acornfb_check_var()
466 		var->green         = var->red;  in acornfb_check_var()
467 		var->blue          = var->red;  in acornfb_check_var()
468 		var->transp.offset = 0;  in acornfb_check_var()
469 		var->transp.length = 0;  in acornfb_check_var()
474 		var->red.offset    = 0;  in acornfb_check_var()
475 		var->red.length    = 5;  in acornfb_check_var()
476 		var->green.offset  = 5;  in acornfb_check_var()
477 		var->green.length  = 5;  in acornfb_check_var()
478 		var->blue.offset   = 10;  in acornfb_check_var()
479 		var->blue.length   = 5;  in acornfb_check_var()
480 		var->transp.offset = 15;  in acornfb_check_var()
481 		var->transp.length = 1;  in acornfb_check_var()
485 		var->red.offset    = 0;  in acornfb_check_var()
486 		var->red.length    = 8;  in acornfb_check_var()
487 		var->green.offset  = 8;  in acornfb_check_var()
488 		var->green.length  = 8;  in acornfb_check_var()
489 		var->blue.offset   = 16;  in acornfb_check_var()
490 		var->blue.length   = 8;  in acornfb_check_var()
491 		var->transp.offset = 24;  in acornfb_check_var()
492 		var->transp.length = 4;  in acornfb_check_var()
502 	if (!acornfb_valid_pixrate(var))  in acornfb_check_var()
509 	err = acornfb_adjust_timing(info, var, fontht);  in acornfb_check_var()
517 	return acornfb_validate_timing(var, &info->monspecs);  in acornfb_check_var()
522 	switch (info->var.bits_per_pixel) {  in acornfb_set_par()
553 	info->fix.line_length	= (info->var.xres * info->var.bits_per_pixel) / 8;  in acornfb_set_par()
584 	acornfb_update_dma(info, &info->var);  in acornfb_set_par()
591 acornfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)  in acornfb_pan_display()  argument
593 	u_int y_bottom = var->yoffset;  in acornfb_pan_display()
595 	if (!(var->vmode & FB_VMODE_YWRAP))  in acornfb_pan_display()
596 		y_bottom += info->var.yres;  in acornfb_pan_display()
598 	if (y_bottom > info->var.yres_virtual)  in acornfb_pan_display()
601 	acornfb_update_dma(info, var);  in acornfb_pan_display()
710 	memset(&fb_info.var, 0, sizeof(fb_info.var));  in acornfb_init_fbinfo()
713 	fb_info.var.red.length	   = 8;  in acornfb_init_fbinfo()
714 	fb_info.var.transp.length  = 4;  in acornfb_init_fbinfo()
716 	fb_info.var.green	   = fb_info.var.red;  in acornfb_init_fbinfo()
717 	fb_info.var.blue	   = fb_info.var.red;  in acornfb_init_fbinfo()
718 	fb_info.var.nonstd	   = 0;  in acornfb_init_fbinfo()
719 	fb_info.var.activate	   = FB_ACTIVATE_NOW;  in acornfb_init_fbinfo()
720 	fb_info.var.height	   = -1;  in acornfb_init_fbinfo()
721 	fb_info.var.width	   = -1;  in acornfb_init_fbinfo()
722 	fb_info.var.vmode	   = FB_VMODE_NONINTERLACED;  in acornfb_init_fbinfo()
723 	fb_info.var.accel_flags	   = FB_ACCELF_TEXT;  in acornfb_init_fbinfo()
788 	fb_info.var.width = simple_strtoul(p + 1, &p, 0);  in acornfb_parse_mon()
793 	fb_info.var.height = simple_strtoul(p + 1, NULL, 0);  in acornfb_parse_mon()
1024 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb,  in acornfb_probe()
1033 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, NULL, 0,  in acornfb_probe()
1041 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb,  in acornfb_probe()
1047 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, NULL, 0,  in acornfb_probe()
1060 	h_sync = 1953125000 / fb_info.var.pixclock;  in acornfb_probe()
1061 	h_sync = h_sync * 512 / (fb_info.var.xres + fb_info.var.left_margin +  in acornfb_probe()
1062 		 fb_info.var.right_margin + fb_info.var.hsync_len);  in acornfb_probe()
1063 	v_sync = h_sync / (fb_info.var.yres + fb_info.var.upper_margin +  in acornfb_probe()
1064 		 fb_info.var.lower_margin + fb_info.var.vsync_len);  in acornfb_probe()
1069 		VIDC_NAME, fb_info.var.xres, fb_info.var.yres,  in acornfb_probe()
1078 	if (fb_set_var(&fb_info, &fb_info.var))  in acornfb_probe()