1 // SPDX-License-Identifier: GPL-2.0-only
166 #define CG6_THC_CURSOFF			((65536-32) | ((65536-32) << 16))
197 	u32	blit;  member
271 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_sync()
272 	struct cg6_fbc __iomem *fbc = par->fbc;  in cg6_sync()
276 		if (!(sbus_readl(&fbc->s) & 0x10000000))  in cg6_sync()
279 	} while (--limit > 0);  in cg6_sync()
286 	struct cg6_thc __iomem *thc = par->thc;  in cg6_switch_from_graph()
289 	spin_lock_irqsave(&par->lock, flags);  in cg6_switch_from_graph()
292 	sbus_writel(CG6_THC_CURSOFF, &thc->thc_cursxy);  in cg6_switch_from_graph()
294 	spin_unlock_irqrestore(&par->lock, flags);  in cg6_switch_from_graph()
299 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_pan_display()
306 	if (var->xoffset || var->yoffset || var->vmode)  in cg6_pan_display()
307 		return -EINVAL;  in cg6_pan_display()
312  *	cg6_fillrect -	Draws a rectangle on the screen.
319 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_fillrect()
320 	struct cg6_fbc __iomem *fbc = par->fbc;  in cg6_fillrect()
326 	spin_lock_irqsave(&par->lock, flags);  in cg6_fillrect()
330 	sbus_writel(rect->color, &fbc->fg);  in cg6_fillrect()
331 	sbus_writel(~(u32)0, &fbc->pixelm);  in cg6_fillrect()
332 	sbus_writel(0xea80ff00, &fbc->alu);  in cg6_fillrect()
333 	sbus_writel(0, &fbc->s);  in cg6_fillrect()
334 	sbus_writel(0, &fbc->clip);  in cg6_fillrect()
335 	sbus_writel(~(u32)0, &fbc->pm);  in cg6_fillrect()
336 	sbus_writel(rect->dy, &fbc->arecty);  in cg6_fillrect()
337 	sbus_writel(rect->dx, &fbc->arectx);  in cg6_fillrect()
338 	sbus_writel(rect->dy + rect->height, &fbc->arecty);  in cg6_fillrect()
339 	sbus_writel(rect->dx + rect->width, &fbc->arectx);  in cg6_fillrect()
341 		val = sbus_readl(&fbc->draw);  in cg6_fillrect()
343 	spin_unlock_irqrestore(&par->lock, flags);  in cg6_fillrect()
347  *	cg6_copyarea - Copies one area of the screen to another area.
358 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_copyarea()
359 	struct cg6_fbc __iomem *fbc = par->fbc;  in cg6_copyarea()
363 	spin_lock_irqsave(&par->lock, flags);  in cg6_copyarea()
367 	sbus_writel(0xff, &fbc->fg);  in cg6_copyarea()
368 	sbus_writel(0x00, &fbc->bg);  in cg6_copyarea()
369 	sbus_writel(~0, &fbc->pixelm);  in cg6_copyarea()
370 	sbus_writel(0xe880cccc, &fbc->alu);  in cg6_copyarea()
371 	sbus_writel(0, &fbc->s);  in cg6_copyarea()
372 	sbus_writel(0, &fbc->clip);  in cg6_copyarea()
374 	sbus_writel(area->sy, &fbc->y0);  in cg6_copyarea()
375 	sbus_writel(area->sx, &fbc->x0);  in cg6_copyarea()
376 	sbus_writel(area->sy + area->height - 1, &fbc->y1);  in cg6_copyarea()
377 	sbus_writel(area->sx + area->width - 1, &fbc->x1);  in cg6_copyarea()
378 	sbus_writel(area->dy, &fbc->y2);  in cg6_copyarea()
379 	sbus_writel(area->dx, &fbc->x2);  in cg6_copyarea()
380 	sbus_writel(area->dy + area->height - 1, &fbc->y3);  in cg6_copyarea()
381 	sbus_writel(area->dx + area->width - 1, &fbc->x3);  in cg6_copyarea()
383 		i = sbus_readl(&fbc->blit);  in cg6_copyarea()
385 	spin_unlock_irqrestore(&par->lock, flags);  in cg6_copyarea()
389  *	cg6_imageblit -	Copies a image from system memory to the screen.
396 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_imageblit()
397 	struct cg6_fbc __iomem *fbc = par->fbc;  in cg6_imageblit()
398 	const u8 *data = image->data;  in cg6_imageblit()
403 	if (image->depth > 1) {  in cg6_imageblit()
408 	spin_lock_irqsave(&par->lock, flags);  in cg6_imageblit()
412 	sbus_writel(image->fg_color, &fbc->fg);  in cg6_imageblit()
413 	sbus_writel(image->bg_color, &fbc->bg);  in cg6_imageblit()
414 	sbus_writel(0x140000, &fbc->mode);  in cg6_imageblit()
415 	sbus_writel(0xe880fc30, &fbc->alu);  in cg6_imageblit()
416 	sbus_writel(~(u32)0, &fbc->pixelm);  in cg6_imageblit()
417 	sbus_writel(0, &fbc->s);  in cg6_imageblit()
418 	sbus_writel(0, &fbc->clip);  in cg6_imageblit()
419 	sbus_writel(0xff, &fbc->pm);  in cg6_imageblit()
420 	sbus_writel(32, &fbc->incx);  in cg6_imageblit()
421 	sbus_writel(0, &fbc->incy);  in cg6_imageblit()
423 	x = image->dx;  in cg6_imageblit()
424 	y = image->dy;  in cg6_imageblit()
425 	for (i = 0; i < image->height; i++) {  in cg6_imageblit()
426 		width = image->width;  in cg6_imageblit()
431 			sbus_writel(y, &fbc->y0);  in cg6_imageblit()
432 			sbus_writel(x, &fbc->x0);  in cg6_imageblit()
433 			sbus_writel(x + 32 - 1, &fbc->x1);  in cg6_imageblit()
439 			sbus_writel(val, &fbc->font);  in cg6_imageblit()
443 			width -= 32;  in cg6_imageblit()
448 			sbus_writel(y, &fbc->y0);  in cg6_imageblit()
449 			sbus_writel(x, &fbc->x0);  in cg6_imageblit()
450 			sbus_writel(x + width - 1, &fbc->x1);  in cg6_imageblit()
464 			sbus_writel(val, &fbc->font);  in cg6_imageblit()
468 		x = image->dx;  in cg6_imageblit()
471 	spin_unlock_irqrestore(&par->lock, flags);  in cg6_imageblit()
475  *	cg6_setcolreg - Sets a color register.
488 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_setcolreg()
489 	struct bt_regs __iomem *bt = par->bt;  in cg6_setcolreg()
499 	spin_lock_irqsave(&par->lock, flags);  in cg6_setcolreg()
501 	sbus_writel((u32)regno << 24, &bt->addr);  in cg6_setcolreg()
502 	sbus_writel((u32)red << 24, &bt->color_map);  in cg6_setcolreg()
503 	sbus_writel((u32)green << 24, &bt->color_map);  in cg6_setcolreg()
504 	sbus_writel((u32)blue << 24, &bt->color_map);  in cg6_setcolreg()
506 	spin_unlock_irqrestore(&par->lock, flags);  in cg6_setcolreg()
512  *	cg6_blank - Blanks the display.
519 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_blank()
520 	struct cg6_thc __iomem *thc = par->thc;  in cg6_blank()
524 	spin_lock_irqsave(&par->lock, flags);  in cg6_blank()
525 	val = sbus_readl(&thc->thc_misc);  in cg6_blank()
530 		par->flags &= ~CG6_FLAG_BLANKED;  in cg6_blank()
538 		par->flags |= CG6_FLAG_BLANKED;  in cg6_blank()
542 	sbus_writel(val, &thc->thc_misc);  in cg6_blank()
543 	spin_unlock_irqrestore(&par->lock, flags);  in cg6_blank()
594 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_sbusfb_mmap()
597 				  info->fix.smem_start, info->fix.smem_len,  in cg6_sbusfb_mmap()
598 				  par->which_io, vma);  in cg6_sbusfb_mmap()
604 				   FBTYPE_SUNFAST_COLOR, 8, info->fix.smem_len);  in cg6_sbusfb_ioctl()
613 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_init_fix()
617 	conf = sbus_readl(par->fhc);  in cg6_init_fix()
630 		if (info->fix.smem_len <= 0x100000)  in cg6_init_fix()
635 		if (info->fix.smem_len <= 0x100000)  in cg6_init_fix()
641 	sprintf(info->fix.id, "%s %s", cg6_card_name, cg6_cpu_name);  in cg6_init_fix()
642 	info->fix.id[sizeof(info->fix.id) - 1] = 0;  in cg6_init_fix()
644 	info->fix.type = FB_TYPE_PACKED_PIXELS;  in cg6_init_fix()
645 	info->fix.visual = FB_VISUAL_PSEUDOCOLOR;  in cg6_init_fix()
647 	info->fix.line_length = linebytes;  in cg6_init_fix()
649 	info->fix.accel = FB_ACCEL_SUN_CGSIX;  in cg6_init_fix()
655 	struct bt_regs __iomem *bt = par->bt;  in cg6_bt_init()
657 	sbus_writel(0x04 << 24, &bt->addr);	 /* color planes */  in cg6_bt_init()
658 	sbus_writel(0xff << 24, &bt->control);  in cg6_bt_init()
659 	sbus_writel(0x05 << 24, &bt->addr);  in cg6_bt_init()
660 	sbus_writel(0x00 << 24, &bt->control);  in cg6_bt_init()
661 	sbus_writel(0x06 << 24, &bt->addr);	 /* overlay plane */  in cg6_bt_init()
662 	sbus_writel(0x73 << 24, &bt->control);  in cg6_bt_init()
663 	sbus_writel(0x07 << 24, &bt->addr);  in cg6_bt_init()
664 	sbus_writel(0x00 << 24, &bt->control);  in cg6_bt_init()
669 	struct cg6_par *par = (struct cg6_par *)info->par;  in cg6_chip_init()
670 	struct cg6_tec __iomem *tec = par->tec;  in cg6_chip_init()
671 	struct cg6_fbc __iomem *fbc = par->fbc;  in cg6_chip_init()
672 	struct cg6_thc __iomem *thc = par->thc;  in cg6_chip_init()
677 	sbus_writel(CG6_THC_CURSOFF, &thc->thc_cursxy);  in cg6_chip_init()
679 	/* Turn off stuff in the Transform Engine. */  in cg6_chip_init()
680 	sbus_writel(0, &tec->tec_matrix);  in cg6_chip_init()
681 	sbus_writel(0, &tec->tec_clip);  in cg6_chip_init()
682 	sbus_writel(0, &tec->tec_vdc);  in cg6_chip_init()
685 	rev = (sbus_readl(par->fhc) >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK;  in cg6_chip_init()
687 		conf = (sbus_readl(par->fhc) & CG6_FHC_RES_MASK) |  in cg6_chip_init()
693 		sbus_writel(conf, par->fhc);  in cg6_chip_init()
699 	mode = sbus_readl(&fbc->mode);  in cg6_chip_init()
701 		i = sbus_readl(&fbc->s);  in cg6_chip_init()
711 	sbus_writel(mode, &fbc->mode);  in cg6_chip_init()
713 	sbus_writel(0, &fbc->clip);  in cg6_chip_init()
714 	sbus_writel(0, &fbc->offx);  in cg6_chip_init()
715 	sbus_writel(0, &fbc->offy);  in cg6_chip_init()
716 	sbus_writel(0, &fbc->clipminx);  in cg6_chip_init()
717 	sbus_writel(0, &fbc->clipminy);  in cg6_chip_init()
718 	sbus_writel(info->var.xres - 1, &fbc->clipmaxx);  in cg6_chip_init()
719 	sbus_writel(info->var.yres - 1, &fbc->clipmaxy);  in cg6_chip_init()
725 	if (par->fbc)  in cg6_unmap_regs()
726 		of_iounmap(&op->resource[0], par->fbc, 4096);  in cg6_unmap_regs()
727 	if (par->tec)  in cg6_unmap_regs()
728 		of_iounmap(&op->resource[0], par->tec, sizeof(struct cg6_tec));  in cg6_unmap_regs()
729 	if (par->thc)  in cg6_unmap_regs()
730 		of_iounmap(&op->resource[0], par->thc, sizeof(struct cg6_thc));  in cg6_unmap_regs()
731 	if (par->bt)  in cg6_unmap_regs()
732 		of_iounmap(&op->resource[0], par->bt, sizeof(struct bt_regs));  in cg6_unmap_regs()
733 	if (par->fhc)  in cg6_unmap_regs()
734 		of_iounmap(&op->resource[0], par->fhc, sizeof(u32));  in cg6_unmap_regs()
736 	if (info->screen_base)  in cg6_unmap_regs()
737 		of_iounmap(&op->resource[0], info->screen_base,  in cg6_unmap_regs()
738 			   info->fix.smem_len);  in cg6_unmap_regs()
743 	struct device_node *dp = op->dev.of_node;  in cg6_probe()
749 	info = framebuffer_alloc(sizeof(struct cg6_par), &op->dev);  in cg6_probe()
751 	err = -ENOMEM;  in cg6_probe()
754 	par = info->par;  in cg6_probe()
756 	spin_lock_init(&par->lock);  in cg6_probe()
758 	info->fix.smem_start = op->resource[0].start;  in cg6_probe()
759 	par->which_io = op->resource[0].flags & IORESOURCE_BITS;  in cg6_probe()
761 	sbusfb_fill_var(&info->var, dp, 8);  in cg6_probe()
762 	info->var.red.length = 8;  in cg6_probe()
763 	info->var.green.length = 8;  in cg6_probe()
764 	info->var.blue.length = 8;  in cg6_probe()
767 					  info->var.xres);  in cg6_probe()
768 	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);  in cg6_probe()
772 		info->fix.smem_len *= 4;  in cg6_probe()
774 	par->fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,  in cg6_probe()
776 	par->tec = of_ioremap(&op->resource[0], CG6_TEC_OFFSET,  in cg6_probe()
778 	par->thc = of_ioremap(&op->resource[0], CG6_THC_OFFSET,  in cg6_probe()
780 	par->bt = of_ioremap(&op->resource[0], CG6_BROOKTREE_OFFSET,  in cg6_probe()
782 	par->fhc = of_ioremap(&op->resource[0], CG6_FHC_OFFSET,  in cg6_probe()
785 	info->flags = FBINFO_HWACCEL_IMAGEBLIT |  in cg6_probe()
788 	info->fbops = &cg6_ops;  in cg6_probe()
790 	info->screen_base = of_ioremap(&op->resource[0], CG6_RAM_OFFSET,  in cg6_probe()
791 					info->fix.smem_len, "cgsix ram");  in cg6_probe()
792 	if (!par->fbc || !par->tec || !par->thc ||  in cg6_probe()
793 	    !par->bt || !par->fhc || !info->screen_base)  in cg6_probe()
796 	info->var.accel_flags = FB_ACCELF_TEXT;  in cg6_probe()
802 	if (fb_alloc_cmap(&info->cmap, 256, 0))  in cg6_probe()
805 	fb_set_cmap(&info->cmap, info);  in cg6_probe()
812 	dev_set_drvdata(&op->dev, info);  in cg6_probe()
815 	       dp, info->fix.id,  in cg6_probe()
816 	       par->which_io, info->fix.smem_start);  in cg6_probe()
821 	fb_dealloc_cmap(&info->cmap);  in cg6_probe()
833 	struct fb_info *info = dev_get_drvdata(&op->dev);  in cg6_remove()
834 	struct cg6_par *par = info->par;  in cg6_remove()
837 	fb_dealloc_cmap(&info->cmap);  in cg6_remove()
867 		return -ENODEV;  in cg6_init()