video/fbdev/sa1100fb.c

218 static int sa1100fb_activate_var(struct fb_var_screeninfo *var, struct sa1100fb_info *);
256 static inline u_int palette_pbs(struct fb_var_screeninfo *var)
259 	switch (var->bits_per_pixel) {
281 			val |= palette_pbs(&fbi->fb.var);
314 	if (fbi->fb.var.grayscale)
325 			val  = chan_to_field(red, &fbi->fb.var.red);
326 			val |= chan_to_field(green, &fbi->fb.var.green);
327 			val |= chan_to_field(blue, &fbi->fb.var.blue);
350 static inline unsigned int sa1100fb_display_dma_period(struct fb_var_screeninfo *var)
356 	return var->pixclock * 8 * 16 / var->bits_per_pixel;
367 sa1100fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
373 	if (var->xres < MIN_XRES)
374 		var->xres = MIN_XRES;
375 	if (var->yres < MIN_YRES)
376 		var->yres = MIN_YRES;
377 	if (var->xres > fbi->inf->xres)
378 		var->xres = fbi->inf->xres;
379 	if (var->yres > fbi->inf->yres)
380 		var->yres = fbi->inf->yres;
381 	var->xres_virtual = max(var->xres_virtual, var->xres);
382 	var->yres_virtual = max(var->yres_virtual, var->yres);
384 	dev_dbg(fbi->dev, "var->bits_per_pixel=%d\n", var->bits_per_pixel);
385 	switch (var->bits_per_pixel) {
403 	var->red    = fbi->rgb[rgbidx]->red;
404 	var->green  = fbi->rgb[rgbidx]->green;
405 	var->blue   = fbi->rgb[rgbidx]->blue;
406 	var->transp = fbi->rgb[rgbidx]->transp;
409 		var->red.length, var->green.length, var->blue.length,
410 		var->transp.length);
413 		var->red.offset, var->green.offset, var->blue.offset,
414 		var->transp.offset);
418 		sa1100fb_display_dma_period(var),
439 	struct fb_var_screeninfo *var = &info->var;
444 	if (var->bits_per_pixel == 16)
457 	fbi->fb.fix.line_length = var->xres_virtual *
458 				  var->bits_per_pixel / 8;
459 	fbi->palette_size = var->bits_per_pixel == 8 ? 256 : 16;
472 	sa1100fb_activate_var(var, fbi);
487 	if (!kspc && (fbi->fb.var.bits_per_pixel == 16 || fbi->inf->cmap_static))
607  *	Configures LCD Controller based on entries in var parameter.  Settings are
610 static int sa1100fb_activate_var(struct fb_var_screeninfo *var, struct sa1100fb_info *fbi)
618 	dev_dbg(fbi->dev, "var: xres=%d hslen=%d lm=%d rm=%d\n",
619 		var->xres, var->hsync_len,
620 		var->left_margin, var->right_margin);
621 	dev_dbg(fbi->dev, "var: yres=%d vslen=%d um=%d bm=%d\n",
622 		var->yres, var->vsync_len,
623 		var->upper_margin, var->lower_margin);
626 	if (var->xres < 16        || var->xres > 1024)
628 			fbi->fb.fix.id, var->xres);
629 	if (var->hsync_len < 1    || var->hsync_len > 64)
631 			fbi->fb.fix.id, var->hsync_len);
632 	if (var->left_margin < 1  || var->left_margin > 255)
634 			fbi->fb.fix.id, var->left_margin);
635 	if (var->right_margin < 1 || var->right_margin > 255)
637 			fbi->fb.fix.id, var->right_margin);
638 	if (var->yres < 1         || var->yres > 1024)
640 			fbi->fb.fix.id, var->yres);
641 	if (var->vsync_len < 1    || var->vsync_len > 64)
643 			fbi->fb.fix.id, var->vsync_len);
644 	if (var->upper_margin < 0 || var->upper_margin > 255)
646 			fbi->fb.fix.id, var->upper_margin);
647 	if (var->lower_margin < 0 || var->lower_margin > 255)
649 			fbi->fb.fix.id, var->lower_margin);
657 		LCCR1_DisWdth(var->xres) +
658 		LCCR1_HorSnchWdth(var->hsync_len) +
659 		LCCR1_BegLnDel(var->left_margin) +
660 		LCCR1_EndLnDel(var->right_margin);
666 	yres = var->yres;
672 		LCCR2_VrtSnchWdth(var->vsync_len) +
673 		LCCR2_BegFrmDel(var->upper_margin) +
674 		LCCR2_EndFrmDel(var->lower_margin);
676 	pcd = get_pcd(fbi, var->pixclock);
678 		(var->sync & FB_SYNC_HOR_HIGH_ACT ? LCCR3_HorSnchH : LCCR3_HorSnchL) |
679 		(var->sync & FB_SYNC_VERT_HIGH_ACT ? LCCR3_VrtSnchH : LCCR3_VrtSnchL);
686 	half_screen_size = var->bits_per_pixel;
687 	half_screen_size = half_screen_size * var->xres * var->yres / 16;
757 		if (fbi->fb.var.bits_per_pixel > 8 ||
788 	fbi->palette_cpu[0] |= palette_pbs(&fbi->fb.var);
988 		pcd = get_pcd(fbi, fbi->fb.var.pixclock);
1085 	fbi->fb.var.nonstd	= 0;
1086 	fbi->fb.var.activate	= FB_ACTIVATE_NOW;
1087 	fbi->fb.var.height	= -1;
1088 	fbi->fb.var.width	= -1;
1089 	fbi->fb.var.accel_flags	= 0;
1090 	fbi->fb.var.vmode	= FB_VMODE_NONINTERLACED;
1110 	fbi->fb.var.xres		= inf->xres;
1111 	fbi->fb.var.xres_virtual	= inf->xres;
1112 	fbi->fb.var.yres		= inf->yres;
1113 	fbi->fb.var.yres_virtual	= inf->yres;
1114 	fbi->fb.var.bits_per_pixel	= inf->bpp;
1115 	fbi->fb.var.pixclock		= inf->pixclock;
1116 	fbi->fb.var.hsync_len		= inf->hsync_len;
1117 	fbi->fb.var.left_margin		= inf->left_margin;
1118 	fbi->fb.var.right_margin	= inf->right_margin;
1119 	fbi->fb.var.vsync_len		= inf->vsync_len;
1120 	fbi->fb.var.upper_margin	= inf->upper_margin;
1121 	fbi->fb.var.lower_margin	= inf->lower_margin;
1122 	fbi->fb.var.sync		= inf->sync;
1123 	fbi->fb.var.grayscale		= inf->cmap_greyscale;
1189 	sa1100fb_check_var(&fbi->fb.var, &fbi->fb);