[deliverable/linux.git] / drivers / video / matrox / matroxfb_accel.c

/*
 *
 * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
 *
 * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
 *
 * Version: 1.65 2002/08/14
 *
 * MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
 *
 * Contributors: "menion?" <menion@mindless.com>
 *                     Betatesting, fixes, ideas
 *
 *               "Kurt Garloff" <garloff@suse.de>
 *                     Betatesting, fixes, ideas, videomodes, videomodes timmings
 *
 *               "Tom Rini" <trini@kernel.crashing.org>
 *                     MTRR stuff, PPC cleanups, betatesting, fixes, ideas
 *
 *               "Bibek Sahu" <scorpio@dodds.net>
 *                     Access device through readb|w|l and write b|w|l
 *                     Extensive debugging stuff
 *
 *               "Daniel Haun" <haund@usa.net>
 *                     Testing, hardware cursor fixes
 *
 *               "Scott Wood" <sawst46+@pitt.edu>
 *                     Fixes
 *
 *               "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
 *                     Betatesting
 *
 *               "Kelly French" <targon@hazmat.com>
 *               "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
 *                     Betatesting, bug reporting
 *
 *               "Pablo Bianucci" <pbian@pccp.com.ar>
 *                     Fixes, ideas, betatesting
 *
 *               "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
 *                     Fixes, enhandcements, ideas, betatesting
 *
 *               "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
 *                     PPC betatesting, PPC support, backward compatibility
 *
 *               "Paul Womar" <Paul@pwomar.demon.co.uk>
 *               "Owen Waller" <O.Waller@ee.qub.ac.uk>
 *                     PPC betatesting
 *
 *               "Thomas Pornin" <pornin@bolet.ens.fr>
 *                     Alpha betatesting
 *
 *               "Pieter van Leuven" <pvl@iae.nl>
 *               "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
 *                     G100 testing
 *
 *               "H. Peter Arvin" <hpa@transmeta.com>
 *                     Ideas
 *
 *               "Cort Dougan" <cort@cs.nmt.edu>
 *                     CHRP fixes and PReP cleanup
 *
 *               "Mark Vojkovich" <mvojkovi@ucsd.edu>
 *                     G400 support
 *
 * (following author is not in any relation with this code, but his code
 *  is included in this driver)
 *
 * Based on framebuffer driver for VBE 2.0 compliant graphic boards
 *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
 *
 * (following author is not in any relation with this code, but his ideas
 *  were used when writing this driver)
 *
 *		 FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
 *
 */

#include "matroxfb_accel.h"
#include "matroxfb_DAC1064.h"
#include "matroxfb_Ti3026.h"
#include "matroxfb_misc.h"

#define curr_ydstorg(x)	((x)->curr.ydstorg.pixels)

#define mga_ydstlen(y,l) mga_outl(M_YDSTLEN | M_EXEC, ((y) << 16) | (l))

static inline void matrox_cfb4_pal(u_int32_t* pal) {
	unsigned int i;
	
	for (i = 0; i < 16; i++) {
		pal[i] = i * 0x11111111U;
	}
}

static inline void matrox_cfb8_pal(u_int32_t* pal) {
	unsigned int i;
	
	for (i = 0; i < 16; i++) {
		pal[i] = i * 0x01010101U;
	}
}

static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area);
static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image);
static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area);

void matrox_cfbX_init(struct matrox_fb_info *minfo)
{
	u_int32_t maccess;
	u_int32_t mpitch;
	u_int32_t mopmode;
	int accel;

	DBG(__func__)

	mpitch = minfo->fbcon.var.xres_virtual;

	minfo->fbops.fb_copyarea = cfb_copyarea;
	minfo->fbops.fb_fillrect = cfb_fillrect;
	minfo->fbops.fb_imageblit = cfb_imageblit;
	minfo->fbops.fb_cursor = NULL;

	accel = (minfo->fbcon.var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT;

	switch (minfo->fbcon.var.bits_per_pixel) {
		case 4:		maccess = 0x00000000;	/* accelerate as 8bpp video */
				mpitch = (mpitch >> 1) | 0x8000; /* disable linearization */
				mopmode = M_OPMODE_4BPP;
				matrox_cfb4_pal(minfo->cmap);
				if (accel && !(mpitch & 1)) {
					minfo->fbops.fb_copyarea = matroxfb_cfb4_copyarea;
					minfo->fbops.fb_fillrect = matroxfb_cfb4_fillrect;
				}
				break;
		case 8:		maccess = 0x00000000;
				mopmode = M_OPMODE_8BPP;
				matrox_cfb8_pal(minfo->cmap);
				if (accel) {
					minfo->fbops.fb_copyarea = matroxfb_copyarea;
					minfo->fbops.fb_fillrect = matroxfb_fillrect;
					minfo->fbops.fb_imageblit = matroxfb_imageblit;
				}
				break;
		case 16:	if (minfo->fbcon.var.green.length == 5)
					maccess = 0xC0000001;
				else
					maccess = 0x40000001;
				mopmode = M_OPMODE_16BPP;
				if (accel) {
					minfo->fbops.fb_copyarea = matroxfb_copyarea;
					minfo->fbops.fb_fillrect = matroxfb_fillrect;
					minfo->fbops.fb_imageblit = matroxfb_imageblit;
				}
				break;
		case 24:	maccess = 0x00000003;
				mopmode = M_OPMODE_24BPP;
				if (accel) {
					minfo->fbops.fb_copyarea = matroxfb_copyarea;
					minfo->fbops.fb_fillrect = matroxfb_fillrect;
					minfo->fbops.fb_imageblit = matroxfb_imageblit;
				}
				break;
		case 32:	maccess = 0x00000002;
				mopmode = M_OPMODE_32BPP;
				if (accel) {
					minfo->fbops.fb_copyarea = matroxfb_copyarea;
					minfo->fbops.fb_fillrect = matroxfb_fillrect;
					minfo->fbops.fb_imageblit = matroxfb_imageblit;
				}
				break;
		default:	maccess = 0x00000000;
				mopmode = 0x00000000;
				break;	/* turn off acceleration!!! */
	}
	mga_fifo(8);
	mga_outl(M_PITCH, mpitch);
	mga_outl(M_YDSTORG, curr_ydstorg(minfo));
	if (minfo->capable.plnwt)
		mga_outl(M_PLNWT, -1);
	if (minfo->capable.srcorg) {
		mga_outl(M_SRCORG, 0);
		mga_outl(M_DSTORG, 0);
	}
	mga_outl(M_OPMODE, mopmode);
	mga_outl(M_CXBNDRY, 0xFFFF0000);
	mga_outl(M_YTOP, 0);
	mga_outl(M_YBOT, 0x01FFFFFF);
	mga_outl(M_MACCESS, maccess);
	minfo->accel.m_dwg_rect = M_DWG_TRAP | M_DWG_SOLID | M_DWG_ARZERO | M_DWG_SGNZERO | M_DWG_SHIFTZERO;
	if (isMilleniumII(minfo)) minfo->accel.m_dwg_rect |= M_DWG_TRANSC;
	minfo->accel.m_opmode = mopmode;
}

EXPORT_SYMBOL(matrox_cfbX_init);

static void matrox_accel_bmove(struct matrox_fb_info *minfo, int vxres, int sy,
			       int sx, int dy, int dx, int height, int width)
{
	int start, end;
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
		mga_fifo(2);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
			 M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_AR5, vxres);
		width--;
		start = sy*vxres+sx+curr_ydstorg(minfo);
		end = start+width;
	} else {
		mga_fifo(3);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_SGN, 5);
		mga_outl(M_AR5, -vxres);
		width--;
		end = (sy+height-1)*vxres+sx+curr_ydstorg(minfo);
		start = end+width;
		dy += height-1;
	}
	mga_fifo(4);
	mga_outl(M_AR0, end);
	mga_outl(M_AR3, start);
	mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
	mga_ydstlen(dy, height);
	WaitTillIdle();

	CRITEND
}

static void matrox_accel_bmove_lin(struct matrox_fb_info *minfo, int vxres,
				   int sy, int sx, int dy, int dx, int height,
				   int width)
{
	int start, end;
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	if ((dy < sy) || ((dy == sy) && (dx <= sx))) {
		mga_fifo(2);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_SGNZERO |
			M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_AR5, vxres);
		width--;
		start = sy*vxres+sx+curr_ydstorg(minfo);
		end = start+width;
	} else {
		mga_fifo(3);
		mga_outl(M_DWGCTL, M_DWG_BITBLT | M_DWG_SHIFTZERO | M_DWG_BFCOL | M_DWG_REPLACE);
		mga_outl(M_SGN, 5);
		mga_outl(M_AR5, -vxres);
		width--;
		end = (sy+height-1)*vxres+sx+curr_ydstorg(minfo);
		start = end+width;
		dy += height-1;
	}
	mga_fifo(5);
	mga_outl(M_AR0, end);
	mga_outl(M_AR3, start);
	mga_outl(M_FXBNDRY, ((dx+width)<<16) | dx);
	mga_outl(M_YDST, dy*vxres >> 5);
	mga_outl(M_LEN | M_EXEC, height);
	WaitTillIdle();

	CRITEND
}

static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
	struct matrox_fb_info *minfo = info2minfo(info);

	if ((area->sx | area->dx | area->width) & 1)
		cfb_copyarea(info, area);
	else
		matrox_accel_bmove_lin(minfo, minfo->fbcon.var.xres_virtual >> 1, area->sy, area->sx >> 1, area->dy, area->dx >> 1, area->height, area->width >> 1);
}

static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
	struct matrox_fb_info *minfo = info2minfo(info);

	matrox_accel_bmove(minfo, minfo->fbcon.var.xres_virtual, area->sy, area->sx, area->dy, area->dx, area->height, area->width);
}

static void matroxfb_accel_clear(struct matrox_fb_info *minfo, u_int32_t color,
				 int sy, int sx, int height, int width)
{
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	mga_fifo(5);
	mga_outl(M_DWGCTL, minfo->accel.m_dwg_rect | M_DWG_REPLACE);
	mga_outl(M_FCOL, color);
	mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
	mga_ydstlen(sy, height);
	WaitTillIdle();

	CRITEND
}

static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
	struct matrox_fb_info *minfo = info2minfo(info);

	switch (rect->rop) {
		case ROP_COPY:
			matroxfb_accel_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
			break;
	}
}

static void matroxfb_cfb4_clear(struct matrox_fb_info *minfo, u_int32_t bgx,
				int sy, int sx, int height, int width)
{
	int whattodo;
	CRITFLAGS

	DBG(__func__)

	CRITBEGIN

	whattodo = 0;
	if (sx & 1) {
		sx ++;
		if (!width) return;
		width --;
		whattodo = 1;
	}
	if (width & 1) {
		whattodo |= 2;
	}
	width >>= 1;
	sx >>= 1;
	if (width) {
		mga_fifo(5);
		mga_outl(M_DWGCTL, minfo->accel.m_dwg_rect | M_DWG_REPLACE2);
		mga_outl(M_FCOL, bgx);
		mga_outl(M_FXBNDRY, ((sx + width) << 16) | sx);
		mga_outl(M_YDST, sy * minfo->fbcon.var.xres_virtual >> 6);
		mga_outl(M_LEN | M_EXEC, height);
		WaitTillIdle();
	}
	if (whattodo) {
		u_int32_t step = minfo->fbcon.var.xres_virtual >> 1;
		vaddr_t vbase = minfo->video.vbase;
		if (whattodo & 1) {
			unsigned int uaddr = sy * step + sx - 1;
			u_int32_t loop;
			u_int8_t bgx2 = bgx & 0xF0;
			for (loop = height; loop > 0; loop --) {
				mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0x0F) | bgx2);
				uaddr += step;
			}
		}
		if (whattodo & 2) {
			unsigned int uaddr = sy * step + sx + width;
			u_int32_t loop;
			u_int8_t bgx2 = bgx & 0x0F;
			for (loop = height; loop > 0; loop --) {
				mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0xF0) | bgx2);
				uaddr += step;
			}
		}
	}

	CRITEND
}

static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
	struct matrox_fb_info *minfo = info2minfo(info);

	switch (rect->rop) {
		case ROP_COPY:
			matroxfb_cfb4_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
			break;
	}
}

static void matroxfb_1bpp_imageblit(struct matrox_fb_info *minfo, u_int32_t fgx,
				    u_int32_t bgx, const u_int8_t *chardata,
				    int width, int height, int yy, int xx)
{
	u_int32_t step;
	u_int32_t ydstlen;
	u_int32_t xlen;
	u_int32_t ar0;
	u_int32_t charcell;
	u_int32_t fxbndry;
	vaddr_t mmio;
	int easy;
	CRITFLAGS

	DBG_HEAVY(__func__);

	step = (width + 7) >> 3;
	charcell = height * step;
	xlen = (charcell + 3) & ~3;
	ydstlen = (yy << 16) | height;
	if (width == step << 3) {
		ar0 = height * width - 1;
		easy = 1;
	} else {
		ar0 = width - 1;
		easy = 0;
	}

	CRITBEGIN

	mga_fifo(3);
	if (easy)
		mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_LINEAR | M_DWG_REPLACE);
	else
		mga_outl(M_DWGCTL, M_DWG_ILOAD | M_DWG_SGNZERO | M_DWG_SHIFTZERO | M_DWG_BMONOWF | M_DWG_REPLACE);
	mga_outl(M_FCOL, fgx);
	mga_outl(M_BCOL, bgx);
	fxbndry = ((xx + width - 1) << 16) | xx;
	mmio = minfo->mmio.vbase;

	mga_fifo(6);
	mga_writel(mmio, M_FXBNDRY, fxbndry);
	mga_writel(mmio, M_AR0, ar0);
	mga_writel(mmio, M_AR3, 0);
	if (easy) {
		mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
		mga_memcpy_toio(mmio, chardata, xlen);
	} else {
		mga_writel(mmio, M_AR5, 0);
		mga_writel(mmio, M_YDSTLEN | M_EXEC, ydstlen);
		if ((step & 3) == 0) {
			/* Great. Source has 32bit aligned lines, so we can feed them
			   directly to the accelerator. */
			mga_memcpy_toio(mmio, chardata, charcell);
		} else if (step == 1) {
			/* Special case for 1..8bit widths */
			while (height--) {
#if defined(__BIG_ENDIAN)
				fb_writel((*chardata) << 24, mmio.vaddr);
#else
				fb_writel(*chardata, mmio.vaddr);
#endif
				chardata++;
			}
		} else if (step == 2) {
			/* Special case for 9..15bit widths */
			while (height--) {
#if defined(__BIG_ENDIAN)
				fb_writel((*(u_int16_t*)chardata) << 16, mmio.vaddr);
#else
				fb_writel(*(u_int16_t*)chardata, mmio.vaddr);
#endif
				chardata += 2;
			}
		} else {
			/* Tell... well, why bother... */
			while (height--) {
				size_t i;
				
				for (i = 0; i < step; i += 4) {
					/* Hope that there are at least three readable bytes beyond the end of bitmap */
					fb_writel(get_unaligned((u_int32_t*)(chardata + i)),mmio.vaddr);
				}
				chardata += step;
			}
		}
	}
	WaitTillIdle();
	CRITEND
}


static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image) {
	struct matrox_fb_info *minfo = info2minfo(info);

	DBG_HEAVY(__func__);

	if (image->depth == 1) {
		u_int32_t fgx, bgx;

		fgx = ((u_int32_t*)info->pseudo_palette)[image->fg_color];
		bgx = ((u_int32_t*)info->pseudo_palette)[image->bg_color];
		matroxfb_1bpp_imageblit(minfo, fgx, bgx, image->data, image->width, image->height, image->dy, image->dx);
	} else {
		/* Danger! image->depth is useless: logo painting code always
		   passes framebuffer color depth here, although logo data are
		   always 8bpp and info->pseudo_palette is changed to contain
		   logo palette to be used (but only for true/direct-color... sic...).
		   So do it completely in software... */
		cfb_imageblit(info, image);
	}
}

MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	*
	3	* Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
	4	*
	5	* (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
	6	*
	7	* Version: 1.65 2002/08/14
	8	*
	9	* MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
	10	*
	11	* Contributors: "menion?" <menion@mindless.com>
	12	* Betatesting, fixes, ideas
	13	*
	14	* "Kurt Garloff" <garloff@suse.de>
	15	* Betatesting, fixes, ideas, videomodes, videomodes timmings
	16	*
	17	* "Tom Rini" <trini@kernel.crashing.org>
	18	* MTRR stuff, PPC cleanups, betatesting, fixes, ideas
	19	*
	20	* "Bibek Sahu" <scorpio@dodds.net>
	21	* Access device through readb\|w\|l and write b\|w\|l
	22	* Extensive debugging stuff
	23	*
	24	* "Daniel Haun" <haund@usa.net>
	25	* Testing, hardware cursor fixes
	26	*
	27	* "Scott Wood" <sawst46+@pitt.edu>
	28	* Fixes
	29	*
	30	* "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
	31	* Betatesting
	32	*
	33	* "Kelly French" <targon@hazmat.com>
	34	* "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
	35	* Betatesting, bug reporting
	36	*
	37	* "Pablo Bianucci" <pbian@pccp.com.ar>
	38	* Fixes, ideas, betatesting
	39	*
	40	* "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
	41	* Fixes, enhandcements, ideas, betatesting
	42	*
	43	* "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
	44	* PPC betatesting, PPC support, backward compatibility
	45	*
	46	* "Paul Womar" <Paul@pwomar.demon.co.uk>
	47	* "Owen Waller" <O.Waller@ee.qub.ac.uk>
	48	* PPC betatesting
	49	*
	50	* "Thomas Pornin" <pornin@bolet.ens.fr>
	51	* Alpha betatesting
	52	*
	53	* "Pieter van Leuven" <pvl@iae.nl>
	54	* "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
	55	* G100 testing
	56	*
	57	* "H. Peter Arvin" <hpa@transmeta.com>
	58	* Ideas
	59	*
	60	* "Cort Dougan" <cort@cs.nmt.edu>
	61	* CHRP fixes and PReP cleanup
	62	*
	63	* "Mark Vojkovich" <mvojkovi@ucsd.edu>
	64	* G400 support
65	*
66	* (following author is not in any relation with this code, but his code
67	* is included in this driver)
68	*
69	* Based on framebuffer driver for VBE 2.0 compliant graphic boards
70	* (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
71	*
72	* (following author is not in any relation with this code, but his ideas
beb7dd86	73	* were used when writing this driver)
1da177e4 LT	74	*
	75	* FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
	76	*
	77	*/
	78
	79	#include "matroxfb_accel.h"
	80	#include "matroxfb_DAC1064.h"
	81	#include "matroxfb_Ti3026.h"
	82	#include "matroxfb_misc.h"
	83
fc2d10dd	84	#define curr_ydstorg(x) ((x)->curr.ydstorg.pixels)
1da177e4 LT	85
	86	#define mga_ydstlen(y,l) mga_outl(M_YDSTLEN \| M_EXEC, ((y) << 16) \| (l))
	87
	88	static inline void matrox_cfb4_pal(u_int32_t* pal) {
	89	unsigned int i;
	90
	91	for (i = 0; i < 16; i++) {
	92	pal[i] = i * 0x11111111U;
	93	}
1da177e4 LT	94	}
	95
	96	static inline void matrox_cfb8_pal(u_int32_t* pal) {
	97	unsigned int i;
	98
	99	for (i = 0; i < 16; i++) {
	100	pal[i] = i * 0x01010101U;
	101	}
1da177e4 LT	102	}
	103
	104	static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area);
	105	static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
	106	static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image);
	107	static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect);
	108	static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area);
	109
316b4d64 JD	110	void matrox_cfbX_init(struct matrox_fb_info *minfo)
316b4d64 JD	111	{
1da177e4 LT	112	u_int32_t maccess;
	113	u_int32_t mpitch;
	114	u_int32_t mopmode;
	115	int accel;
	116
5ae12170	117	DBG(__func__)
1da177e4	118
fc2d10dd	119	mpitch = minfo->fbcon.var.xres_virtual;
1da177e4	120
fc2d10dd JD	121	minfo->fbops.fb_copyarea = cfb_copyarea;
	122	minfo->fbops.fb_fillrect = cfb_fillrect;
	123	minfo->fbops.fb_imageblit = cfb_imageblit;
	124	minfo->fbops.fb_cursor = NULL;
1da177e4	125
fc2d10dd	126	accel = (minfo->fbcon.var.accel_flags & FB_ACCELF_TEXT) == FB_ACCELF_TEXT;
1da177e4	127
fc2d10dd	128	switch (minfo->fbcon.var.bits_per_pixel) {
1da177e4 LT	129	case 4: maccess = 0x00000000; /* accelerate as 8bpp video */
	130	mpitch = (mpitch >> 1) \| 0x8000; /* disable linearization */
	131	mopmode = M_OPMODE_4BPP;
fc2d10dd	132	matrox_cfb4_pal(minfo->cmap);
1da177e4	133	if (accel && !(mpitch & 1)) {
fc2d10dd JD	134	minfo->fbops.fb_copyarea = matroxfb_cfb4_copyarea;
fc2d10dd JD	135	minfo->fbops.fb_fillrect = matroxfb_cfb4_fillrect;
1da177e4 LT	136	}
	137	break;
	138	case 8: maccess = 0x00000000;
	139	mopmode = M_OPMODE_8BPP;
fc2d10dd	140	matrox_cfb8_pal(minfo->cmap);
1da177e4	141	if (accel) {
fc2d10dd JD	142	minfo->fbops.fb_copyarea = matroxfb_copyarea;
	143	minfo->fbops.fb_fillrect = matroxfb_fillrect;
	144	minfo->fbops.fb_imageblit = matroxfb_imageblit;
1da177e4 LT	145	}
1da177e4 LT	146	break;
fc2d10dd	147	case 16: if (minfo->fbcon.var.green.length == 5)
1da177e4	148	maccess = 0xC0000001;
08a498de	149	else
1da177e4	150	maccess = 0x40000001;
1da177e4 LT	151	mopmode = M_OPMODE_16BPP;
1da177e4 LT	152	if (accel) {
fc2d10dd JD	153	minfo->fbops.fb_copyarea = matroxfb_copyarea;
	154	minfo->fbops.fb_fillrect = matroxfb_fillrect;
	155	minfo->fbops.fb_imageblit = matroxfb_imageblit;
1da177e4 LT	156	}
	157	break;
	158	case 24: maccess = 0x00000003;
	159	mopmode = M_OPMODE_24BPP;
1da177e4	160	if (accel) {
fc2d10dd JD	161	minfo->fbops.fb_copyarea = matroxfb_copyarea;
	162	minfo->fbops.fb_fillrect = matroxfb_fillrect;
	163	minfo->fbops.fb_imageblit = matroxfb_imageblit;
1da177e4 LT	164	}
	165	break;
	166	case 32: maccess = 0x00000002;
	167	mopmode = M_OPMODE_32BPP;
1da177e4	168	if (accel) {
fc2d10dd JD	169	minfo->fbops.fb_copyarea = matroxfb_copyarea;
	170	minfo->fbops.fb_fillrect = matroxfb_fillrect;
	171	minfo->fbops.fb_imageblit = matroxfb_imageblit;
1da177e4 LT	172	}
	173	break;
	174	default: maccess = 0x00000000;
	175	mopmode = 0x00000000;
	176	break; /* turn off acceleration!!! */
	177	}
	178	mga_fifo(8);
	179	mga_outl(M_PITCH, mpitch);
fc2d10dd JD	180	mga_outl(M_YDSTORG, curr_ydstorg(minfo));
fc2d10dd JD	181	if (minfo->capable.plnwt)
1da177e4	182	mga_outl(M_PLNWT, -1);
fc2d10dd	183	if (minfo->capable.srcorg) {
1da177e4 LT	184	mga_outl(M_SRCORG, 0);
	185	mga_outl(M_DSTORG, 0);
	186	}
	187	mga_outl(M_OPMODE, mopmode);
	188	mga_outl(M_CXBNDRY, 0xFFFF0000);
	189	mga_outl(M_YTOP, 0);
	190	mga_outl(M_YBOT, 0x01FFFFFF);
	191	mga_outl(M_MACCESS, maccess);
fc2d10dd JD	192	minfo->accel.m_dwg_rect = M_DWG_TRAP \| M_DWG_SOLID \| M_DWG_ARZERO \| M_DWG_SGNZERO \| M_DWG_SHIFTZERO;
	193	if (isMilleniumII(minfo)) minfo->accel.m_dwg_rect \|= M_DWG_TRANSC;
	194	minfo->accel.m_opmode = mopmode;
1da177e4 LT	195	}
	196
	197	EXPORT_SYMBOL(matrox_cfbX_init);
	198
316b4d64 JD	199	static void matrox_accel_bmove(struct matrox_fb_info *minfo, int vxres, int sy,
	200	int sx, int dy, int dx, int height, int width)
	201	{
1da177e4 LT	202	int start, end;
	203	CRITFLAGS
	204
5ae12170	205	DBG(__func__)
1da177e4 LT	206
	207	CRITBEGIN
	208
	209	if ((dy < sy) \|\| ((dy == sy) && (dx <= sx))) {
	210	mga_fifo(2);
	211	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_SGNZERO \|
	212	M_DWG_BFCOL \| M_DWG_REPLACE);
	213	mga_outl(M_AR5, vxres);
	214	width--;
fc2d10dd	215	start = sy*vxres+sx+curr_ydstorg(minfo);
1da177e4 LT	216	end = start+width;
	217	} else {
	218	mga_fifo(3);
	219	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_BFCOL \| M_DWG_REPLACE);
	220	mga_outl(M_SGN, 5);
	221	mga_outl(M_AR5, -vxres);
	222	width--;
fc2d10dd	223	end = (sy+height-1)*vxres+sx+curr_ydstorg(minfo);
1da177e4 LT	224	start = end+width;
	225	dy += height-1;
	226	}
	227	mga_fifo(4);
	228	mga_outl(M_AR0, end);
	229	mga_outl(M_AR3, start);
	230	mga_outl(M_FXBNDRY, ((dx+width)<<16) \| dx);
	231	mga_ydstlen(dy, height);
	232	WaitTillIdle();
	233
	234	CRITEND
	235	}
	236
316b4d64 JD	237	static void matrox_accel_bmove_lin(struct matrox_fb_info *minfo, int vxres,
	238	int sy, int sx, int dy, int dx, int height,
	239	int width)
	240	{
1da177e4 LT	241	int start, end;
	242	CRITFLAGS
	243
5ae12170	244	DBG(__func__)
1da177e4 LT	245
	246	CRITBEGIN
	247
	248	if ((dy < sy) \|\| ((dy == sy) && (dx <= sx))) {
	249	mga_fifo(2);
	250	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_SGNZERO \|
	251	M_DWG_BFCOL \| M_DWG_REPLACE);
	252	mga_outl(M_AR5, vxres);
	253	width--;
fc2d10dd	254	start = sy*vxres+sx+curr_ydstorg(minfo);
1da177e4 LT	255	end = start+width;
	256	} else {
	257	mga_fifo(3);
	258	mga_outl(M_DWGCTL, M_DWG_BITBLT \| M_DWG_SHIFTZERO \| M_DWG_BFCOL \| M_DWG_REPLACE);
	259	mga_outl(M_SGN, 5);
	260	mga_outl(M_AR5, -vxres);
	261	width--;
fc2d10dd	262	end = (sy+height-1)*vxres+sx+curr_ydstorg(minfo);
1da177e4 LT	263	start = end+width;
	264	dy += height-1;
	265	}
	266	mga_fifo(5);
	267	mga_outl(M_AR0, end);
	268	mga_outl(M_AR3, start);
	269	mga_outl(M_FXBNDRY, ((dx+width)<<16) \| dx);
	270	mga_outl(M_YDST, dy*vxres >> 5);
	271	mga_outl(M_LEN \| M_EXEC, height);
	272	WaitTillIdle();
	273
	274	CRITEND
	275	}
	276
	277	static void matroxfb_cfb4_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
ee5a2749	278	struct matrox_fb_info *minfo = info2minfo(info);
1da177e4 LT	279
	280	if ((area->sx \| area->dx \| area->width) & 1)
	281	cfb_copyarea(info, area);
	282	else
316b4d64	283	matrox_accel_bmove_lin(minfo, minfo->fbcon.var.xres_virtual >> 1, area->sy, area->sx >> 1, area->dy, area->dx >> 1, area->height, area->width >> 1);
1da177e4 LT	284	}
	285
	286	static void matroxfb_copyarea(struct fb_info* info, const struct fb_copyarea* area) {
ee5a2749	287	struct matrox_fb_info *minfo = info2minfo(info);
1da177e4	288
316b4d64	289	matrox_accel_bmove(minfo, minfo->fbcon.var.xres_virtual, area->sy, area->sx, area->dy, area->dx, area->height, area->width);
1da177e4 LT	290	}
1da177e4 LT	291
316b4d64 JD	292	static void matroxfb_accel_clear(struct matrox_fb_info *minfo, u_int32_t color,
	293	int sy, int sx, int height, int width)
	294	{
1da177e4 LT	295	CRITFLAGS
1da177e4 LT	296
5ae12170	297	DBG(__func__)
1da177e4 LT	298
	299	CRITBEGIN
	300
	301	mga_fifo(5);
fc2d10dd	302	mga_outl(M_DWGCTL, minfo->accel.m_dwg_rect \| M_DWG_REPLACE);
1da177e4 LT	303	mga_outl(M_FCOL, color);
	304	mga_outl(M_FXBNDRY, ((sx + width) << 16) \| sx);
	305	mga_ydstlen(sy, height);
	306	WaitTillIdle();
	307
	308	CRITEND
	309	}
	310
	311	static void matroxfb_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
ee5a2749	312	struct matrox_fb_info *minfo = info2minfo(info);
1da177e4 LT	313
	314	switch (rect->rop) {
	315	case ROP_COPY:
316b4d64	316	matroxfb_accel_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
1da177e4 LT	317	break;
	318	}
	319	}
	320
316b4d64 JD	321	static void matroxfb_cfb4_clear(struct matrox_fb_info *minfo, u_int32_t bgx,
	322	int sy, int sx, int height, int width)
	323	{
1da177e4 LT	324	int whattodo;
	325	CRITFLAGS
	326
5ae12170	327	DBG(__func__)
1da177e4 LT	328
	329	CRITBEGIN
	330
	331	whattodo = 0;
	332	if (sx & 1) {
	333	sx ++;
	334	if (!width) return;
	335	width --;
	336	whattodo = 1;
	337	}
	338	if (width & 1) {
	339	whattodo \|= 2;
	340	}
	341	width >>= 1;
	342	sx >>= 1;
	343	if (width) {
	344	mga_fifo(5);
fc2d10dd	345	mga_outl(M_DWGCTL, minfo->accel.m_dwg_rect \| M_DWG_REPLACE2);
1da177e4 LT	346	mga_outl(M_FCOL, bgx);
1da177e4 LT	347	mga_outl(M_FXBNDRY, ((sx + width) << 16) \| sx);
fc2d10dd	348	mga_outl(M_YDST, sy * minfo->fbcon.var.xres_virtual >> 6);
1da177e4 LT	349	mga_outl(M_LEN \| M_EXEC, height);
	350	WaitTillIdle();
	351	}
	352	if (whattodo) {
fc2d10dd JD	353	u_int32_t step = minfo->fbcon.var.xres_virtual >> 1;
fc2d10dd JD	354	vaddr_t vbase = minfo->video.vbase;
1da177e4 LT	355	if (whattodo & 1) {
	356	unsigned int uaddr = sy * step + sx - 1;
	357	u_int32_t loop;
	358	u_int8_t bgx2 = bgx & 0xF0;
	359	for (loop = height; loop > 0; loop --) {
	360	mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0x0F) \| bgx2);
	361	uaddr += step;
	362	}
	363	}
	364	if (whattodo & 2) {
	365	unsigned int uaddr = sy * step + sx + width;
	366	u_int32_t loop;
	367	u_int8_t bgx2 = bgx & 0x0F;
	368	for (loop = height; loop > 0; loop --) {
	369	mga_writeb(vbase, uaddr, (mga_readb(vbase, uaddr) & 0xF0) \| bgx2);
	370	uaddr += step;
	371	}
	372	}
	373	}
	374
	375	CRITEND
	376	}
	377
	378	static void matroxfb_cfb4_fillrect(struct fb_info* info, const struct fb_fillrect* rect) {
ee5a2749	379	struct matrox_fb_info *minfo = info2minfo(info);
1da177e4 LT	380
	381	switch (rect->rop) {
	382	case ROP_COPY:
316b4d64	383	matroxfb_cfb4_clear(minfo, ((u_int32_t *)info->pseudo_palette)[rect->color], rect->dy, rect->dx, rect->height, rect->width);
1da177e4 LT	384	break;
	385	}
	386	}
	387
316b4d64 JD	388	static void matroxfb_1bpp_imageblit(struct matrox_fb_info *minfo, u_int32_t fgx,
	389	u_int32_t bgx, const u_int8_t *chardata,
	390	int width, int height, int yy, int xx)
	391	{
1da177e4 LT	392	u_int32_t step;
	393	u_int32_t ydstlen;
	394	u_int32_t xlen;
	395	u_int32_t ar0;
	396	u_int32_t charcell;
	397	u_int32_t fxbndry;
	398	vaddr_t mmio;
	399	int easy;
	400	CRITFLAGS
	401
5ae12170	402	DBG_HEAVY(__func__);
1da177e4 LT	403
	404	step = (width + 7) >> 3;
	405	charcell = height * step;
	406	xlen = (charcell + 3) & ~3;
	407	ydstlen = (yy << 16) \| height;
	408	if (width == step << 3) {
	409	ar0 = height * width - 1;
	410	easy = 1;
	411	} else {
	412	ar0 = width - 1;
	413	easy = 0;
	414	}
	415
	416	CRITBEGIN
	417
	418	mga_fifo(3);
	419	if (easy)
	420	mga_outl(M_DWGCTL, M_DWG_ILOAD \| M_DWG_SGNZERO \| M_DWG_SHIFTZERO \| M_DWG_BMONOWF \| M_DWG_LINEAR \| M_DWG_REPLACE);
	421	else
	422	mga_outl(M_DWGCTL, M_DWG_ILOAD \| M_DWG_SGNZERO \| M_DWG_SHIFTZERO \| M_DWG_BMONOWF \| M_DWG_REPLACE);
	423	mga_outl(M_FCOL, fgx);
	424	mga_outl(M_BCOL, bgx);
	425	fxbndry = ((xx + width - 1) << 16) \| xx;
fc2d10dd	426	mmio = minfo->mmio.vbase;
1da177e4 LT	427
	428	mga_fifo(6);
	429	mga_writel(mmio, M_FXBNDRY, fxbndry);
	430	mga_writel(mmio, M_AR0, ar0);
	431	mga_writel(mmio, M_AR3, 0);
	432	if (easy) {
	433	mga_writel(mmio, M_YDSTLEN \| M_EXEC, ydstlen);
	434	mga_memcpy_toio(mmio, chardata, xlen);
	435	} else {
	436	mga_writel(mmio, M_AR5, 0);
	437	mga_writel(mmio, M_YDSTLEN \| M_EXEC, ydstlen);
	438	if ((step & 3) == 0) {
	439	/* Great. Source has 32bit aligned lines, so we can feed them
	440	directly to the accelerator. */
	441	mga_memcpy_toio(mmio, chardata, charcell);
	442	} else if (step == 1) {
	443	/* Special case for 1..8bit widths */
	444	while (height--) {
	445	#if defined(__BIG_ENDIAN)
	446	fb_writel((*chardata) << 24, mmio.vaddr);
	447	#else
	448	fb_writel(*chardata, mmio.vaddr);
	449	#endif
	450	chardata++;
	451	}
	452	} else if (step == 2) {
	453	/* Special case for 9..15bit widths */
	454	while (height--) {
	455	#if defined(__BIG_ENDIAN)
	456	fb_writel(((u_int16_t)chardata) << 16, mmio.vaddr);
	457	#else
	458	fb_writel((u_int16_t)chardata, mmio.vaddr);
	459	#endif
	460	chardata += 2;
	461	}
	462	} else {
	463	/* Tell... well, why bother... */
	464	while (height--) {
	465	size_t i;
	466
	467	for (i = 0; i < step; i += 4) {
	468	/* Hope that there are at least three readable bytes beyond the end of bitmap */
	469	fb_writel(get_unaligned((u_int32_t*)(chardata + i)),mmio.vaddr);
	470	}
	471	chardata += step;
	472	}
	473	}
	474	}
	475	WaitTillIdle();
	476	CRITEND
	477	}
	478
	479
	480	static void matroxfb_imageblit(struct fb_info* info, const struct fb_image* image) {
ee5a2749	481	struct matrox_fb_info *minfo = info2minfo(info);
1da177e4	482
5ae12170	483	DBG_HEAVY(__func__);
1da177e4 LT	484
	485	if (image->depth == 1) {
	486	u_int32_t fgx, bgx;
	487
	488	fgx = ((u_int32_t*)info->pseudo_palette)[image->fg_color];
	489	bgx = ((u_int32_t*)info->pseudo_palette)[image->bg_color];
316b4d64	490	matroxfb_1bpp_imageblit(minfo, fgx, bgx, image->data, image->width, image->height, image->dy, image->dx);
1da177e4 LT	491	} else {
	492	/* Danger! image->depth is useless: logo painting code always
	493	passes framebuffer color depth here, although logo data are
	494	always 8bpp and info->pseudo_palette is changed to contain
	495	logo palette to be used (but only for true/direct-color... sic...).
	496	So do it completely in software... */
	497	cfb_imageblit(info, image);
	498	}
	499	}
	500
	501	MODULE_LICENSE("GPL");