118 	struct fb_var_screeninfo *var = &info->var;  in acornfb_set_timing()  local
126 	vidc.h_sync_width	= var->hsync_len - 8;  in acornfb_set_timing()
127 	vidc.h_border_start	= vidc.h_sync_width + var->left_margin + 8 - 12;  in acornfb_set_timing()
129 	vidc.h_display_end	= vidc.h_display_start + var->xres;  in acornfb_set_timing()
131 	vidc.h_cycle		= vidc.h_border_end + var->right_margin + 12 - 8;  in acornfb_set_timing()
133 	vidc.v_sync_width	= var->vsync_len - 1;  in acornfb_set_timing()
134 	vidc.v_border_start	= vidc.v_sync_width + var->upper_margin;  in acornfb_set_timing()
136 	vidc.v_display_end	= vidc.v_display_start + var->yres;  in acornfb_set_timing()
140 	vcr = var->vsync_len + var->upper_margin + var->yres +  in acornfb_set_timing()
141 	      var->lower_margin;  in acornfb_set_timing()
143 	if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {  in acornfb_set_timing()
149 	switch (var->bits_per_pixel) {  in acornfb_set_timing()
159 	acornfb_vidc20_find_rates(&vidc, var);  in acornfb_set_timing()
160 	fsize = var->vsync_len + var->upper_margin + var->lower_margin - 1;  in acornfb_set_timing()
189 	if (var->sync & FB_SYNC_COMP_HIGH_ACT) /* should be FB_SYNC_COMP */  in acornfb_set_timing()
192 		if (var->sync & FB_SYNC_HOR_HIGH_ACT)  in acornfb_set_timing()
197 		if (var->sync & FB_SYNC_VERT_HIGH_ACT)  in acornfb_set_timing()
205 	words_per_line = var->xres * var->bits_per_pixel / 32;  in acornfb_set_timing()
227 	printk(KERN_DEBUG "VIDC registers for %dx%dx%d:\n", var->xres,  in acornfb_set_timing()
228 	       var->yres, var->bits_per_pixel);  in acornfb_set_timing()
280 		pseudo_val  = regno << info->var.red.offset;  in acornfb_setcolreg()
281 		pseudo_val |= regno << info->var.green.offset;  in acornfb_setcolreg()
282 		pseudo_val |= regno << info->var.blue.offset;  in acornfb_setcolreg()
294 	if (info->var.bits_per_pixel == 16) {  in acornfb_setcolreg()
320 acornfb_adjust_timing(struct fb_info *info, struct fb_var_screeninfo *var, u_int fontht)  in acornfb_adjust_timing()  argument
325 	var->xres = (var->xres + 1) & ~1;  in acornfb_adjust_timing()
330 	var->xres_virtual = var->xres;  in acornfb_adjust_timing()
331 	var->xoffset = 0;  in acornfb_adjust_timing()
345 	font_line_len = var->xres * var->bits_per_pixel * fontht / 8;  in acornfb_adjust_timing()
346 	min_size = var->xres * var->yres * var->bits_per_pixel / 8;  in acornfb_adjust_timing()
366 	if (var->accel_flags & FB_ACCELF_TEXT) {  in acornfb_adjust_timing()
372 			var->yres_virtual = size / (font_line_len / fontht);  in acornfb_adjust_timing()
374 			var->yres_virtual = nr_y;  in acornfb_adjust_timing()
375 	} else if (var->yres_virtual > nr_y)  in acornfb_adjust_timing()
376 		var->yres_virtual = nr_y;  in acornfb_adjust_timing()
383 	if (var->yres > var->yres_virtual)  in acornfb_adjust_timing()
384 		var->yres = var->yres_virtual;  in acornfb_adjust_timing()
386 	if (var->vmode & FB_VMODE_YWRAP) {  in acornfb_adjust_timing()
387 		if (var->yoffset > var->yres_virtual)  in acornfb_adjust_timing()
388 			var->yoffset = var->yres_virtual;  in acornfb_adjust_timing()
390 		if (var->yoffset + var->yres > var->yres_virtual)  in acornfb_adjust_timing()
391 			var->yoffset = var->yres_virtual - var->yres;  in acornfb_adjust_timing()
395 	var->hsync_len = (var->hsync_len + 1) & ~1;  in acornfb_adjust_timing()
399 	if (var->left_margin & 1) {  in acornfb_adjust_timing()
400 		var->left_margin += 1;  in acornfb_adjust_timing()
401 		var->right_margin -= 1;  in acornfb_adjust_timing()
405 	if (var->right_margin & 1)  in acornfb_adjust_timing()
406 		var->right_margin += 1;  in acornfb_adjust_timing()
409 	if (var->vsync_len < 1)  in acornfb_adjust_timing()
410 		var->vsync_len = 1;  in acornfb_adjust_timing()
416 acornfb_validate_timing(struct fb_var_screeninfo *var,  in acornfb_validate_timing()  argument
428 	hs = 1953125000 / var->pixclock;  in acornfb_validate_timing()
430 	     (var->xres + var->left_margin + var->right_margin + var->hsync_len);  in acornfb_validate_timing()
432 	     (var->yres + var->upper_margin + var->lower_margin + var->vsync_len);  in acornfb_validate_timing()
439 acornfb_update_dma(struct fb_info *info, struct fb_var_screeninfo *var)  in acornfb_update_dma()  argument
441 	u_int off = var->yoffset * info->fix.line_length;  in acornfb_update_dma()
451 acornfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)  in acornfb_check_var()  argument
461 	var->red.msb_right = 0;  in acornfb_check_var()
462 	var->green.msb_right = 0;  in acornfb_check_var()
463 	var->blue.msb_right = 0;  in acornfb_check_var()
464 	var->transp.msb_right = 0;  in acornfb_check_var()
466 	switch (var->bits_per_pixel) {  in acornfb_check_var()
468 		var->red.offset    = 0;  in acornfb_check_var()
469 		var->red.length    = var->bits_per_pixel;  in acornfb_check_var()
470 		var->green         = var->red;  in acornfb_check_var()
471 		var->blue          = var->red;  in acornfb_check_var()
472 		var->transp.offset = 0;  in acornfb_check_var()
473 		var->transp.length = 0;  in acornfb_check_var()
478 		var->red.offset    = 0;  in acornfb_check_var()
479 		var->red.length    = 5;  in acornfb_check_var()
480 		var->green.offset  = 5;  in acornfb_check_var()
481 		var->green.length  = 5;  in acornfb_check_var()
482 		var->blue.offset   = 10;  in acornfb_check_var()
483 		var->blue.length   = 5;  in acornfb_check_var()
484 		var->transp.offset = 15;  in acornfb_check_var()
485 		var->transp.length = 1;  in acornfb_check_var()
489 		var->red.offset    = 0;  in acornfb_check_var()
490 		var->red.length    = 8;  in acornfb_check_var()
491 		var->green.offset  = 8;  in acornfb_check_var()
492 		var->green.length  = 8;  in acornfb_check_var()
493 		var->blue.offset   = 16;  in acornfb_check_var()
494 		var->blue.length   = 8;  in acornfb_check_var()
495 		var->transp.offset = 24;  in acornfb_check_var()
496 		var->transp.length = 4;  in acornfb_check_var()
506 	if (!acornfb_valid_pixrate(var))  in acornfb_check_var()
513 	err = acornfb_adjust_timing(info, var, fontht);  in acornfb_check_var()
521 	return acornfb_validate_timing(var, &info->monspecs);  in acornfb_check_var()
526 	switch (info->var.bits_per_pixel) {  in acornfb_set_par()
557 	info->fix.line_length	= (info->var.xres * info->var.bits_per_pixel) / 8;  in acornfb_set_par()
588 	acornfb_update_dma(info, &info->var);  in acornfb_set_par()
595 acornfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)  in acornfb_pan_display()  argument
597 	u_int y_bottom = var->yoffset;  in acornfb_pan_display()
599 	if (!(var->vmode & FB_VMODE_YWRAP))  in acornfb_pan_display()
600 		y_bottom += info->var.yres;  in acornfb_pan_display()
602 	if (y_bottom > info->var.yres_virtual)  in acornfb_pan_display()
605 	acornfb_update_dma(info, var);  in acornfb_pan_display()
716 	memset(&fb_info.var, 0, sizeof(fb_info.var));  in acornfb_init_fbinfo()
719 	fb_info.var.red.length	   = 8;  in acornfb_init_fbinfo()
720 	fb_info.var.transp.length  = 4;  in acornfb_init_fbinfo()
722 	fb_info.var.green	   = fb_info.var.red;  in acornfb_init_fbinfo()
723 	fb_info.var.blue	   = fb_info.var.red;  in acornfb_init_fbinfo()
724 	fb_info.var.nonstd	   = 0;  in acornfb_init_fbinfo()
725 	fb_info.var.activate	   = FB_ACTIVATE_NOW;  in acornfb_init_fbinfo()
726 	fb_info.var.height	   = -1;  in acornfb_init_fbinfo()
727 	fb_info.var.width	   = -1;  in acornfb_init_fbinfo()
728 	fb_info.var.vmode	   = FB_VMODE_NONINTERLACED;  in acornfb_init_fbinfo()
729 	fb_info.var.accel_flags	   = FB_ACCELF_TEXT;  in acornfb_init_fbinfo()
794 	fb_info.var.width = simple_strtoul(p + 1, &p, 0);  in acornfb_parse_mon()
799 	fb_info.var.height = simple_strtoul(p + 1, NULL, 0);  in acornfb_parse_mon()
1064 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb,  in acornfb_probe()
1073 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, NULL, 0,  in acornfb_probe()
1081 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb,  in acornfb_probe()
1087 		rc = fb_find_mode(&fb_info.var, &fb_info, NULL, NULL, 0,  in acornfb_probe()
1100 	h_sync = 1953125000 / fb_info.var.pixclock;  in acornfb_probe()
1101 	h_sync = h_sync * 512 / (fb_info.var.xres + fb_info.var.left_margin +  in acornfb_probe()
1102 		 fb_info.var.right_margin + fb_info.var.hsync_len);  in acornfb_probe()
1103 	v_sync = h_sync / (fb_info.var.yres + fb_info.var.upper_margin +  in acornfb_probe()
1104 		 fb_info.var.lower_margin + fb_info.var.vsync_len);  in acornfb_probe()
1110 		VIDC_NAME, fb_info.var.xres, fb_info.var.yres,  in acornfb_probe()
1119 	if (fb_set_var(&fb_info, &fb_info.var))  in acornfb_probe()