[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / xgifb / XGI_accel.c

/*
 * XGI 300/630/730/540/315/550/650/740 frame buffer driver
 * for Linux kernels 2.4.x and 2.5.x
 *
 * 2D acceleration part
 *
 * Based on the X driver's XGI300_accel.c which is
 *     Copyright Xavier Ducoin <x.ducoin@lectra.com>
 *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
 * and XGI310_accel.c which is
 *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
 *
 * Author: Thomas Winischhofer <thomas@winischhofer.net>
 *			(see http://www.winischhofer.net/
 *			for more information and updates)
 */

//#include <linux/config.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/console.h>
#include <linux/selection.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/vt_kern.h>
#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/agp_backend.h>

#include <linux/types.h>
/*
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#include <linux/XGIfb.h>
#else
#include <video/XGIfb.h>
#endif
*/
#include <asm/io.h>

#ifdef CONFIG_MTRR
#include <asm/mtrr.h>
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#include <video/fbcon.h>
#include <video/fbcon-cfb8.h>
#include <video/fbcon-cfb16.h>
#include <video/fbcon-cfb24.h>
#include <video/fbcon-cfb32.h>
#endif

#include "osdef.h"
#include "vgatypes.h"
#include "vb_struct.h"
#include "XGIfb.h"
#include "XGI_accel.h"


extern struct     video_info xgi_video_info;
extern int XGIfb_accel;

static const int XGIALUConv[] =
{
    0x00,       /* dest = 0;            0,      GXclear,        0 */
    0x88,       /* dest &= src;         DSa,    GXand,          0x1 */
    0x44,       /* dest = src & ~dest;  SDna,   GXandReverse,   0x2 */
    0xCC,       /* dest = src;          S,      GXcopy,         0x3 */
    0x22,       /* dest &= ~src;        DSna,   GXandInverted,  0x4 */
    0xAA,       /* dest = dest;         D,      GXnoop,         0x5 */
    0x66,       /* dest = ^src;         DSx,    GXxor,          0x6 */
    0xEE,       /* dest |= src;         DSo,    GXor,           0x7 */
    0x11,       /* dest = ~src & ~dest; DSon,   GXnor,          0x8 */
    0x99,       /* dest ^= ~src ;       DSxn,   GXequiv,        0x9 */
    0x55,       /* dest = ~dest;        Dn,     GXInvert,       0xA */
    0xDD,       /* dest = src|~dest ;   SDno,   GXorReverse,    0xB */
    0x33,       /* dest = ~src;         Sn,     GXcopyInverted, 0xC */
    0xBB,       /* dest |= ~src;        DSno,   GXorInverted,   0xD */
    0x77,       /* dest = ~src|~dest;   DSan,   GXnand,         0xE */
    0xFF,       /* dest = 0xFF;         1,      GXset,          0xF */
};
/* same ROP but with Pattern as Source */
static const int XGIPatALUConv[] =
{
    0x00,       /* dest = 0;            0,      GXclear,        0 */
    0xA0,       /* dest &= src;         DPa,    GXand,          0x1 */
    0x50,       /* dest = src & ~dest;  PDna,   GXandReverse,   0x2 */
    0xF0,       /* dest = src;          P,      GXcopy,         0x3 */
    0x0A,       /* dest &= ~src;        DPna,   GXandInverted,  0x4 */
    0xAA,       /* dest = dest;         D,      GXnoop,         0x5 */
    0x5A,       /* dest = ^src;         DPx,    GXxor,          0x6 */
    0xFA,       /* dest |= src;         DPo,    GXor,           0x7 */
    0x05,       /* dest = ~src & ~dest; DPon,   GXnor,          0x8 */
    0xA5,       /* dest ^= ~src ;       DPxn,   GXequiv,        0x9 */
    0x55,       /* dest = ~dest;        Dn,     GXInvert,       0xA */
    0xF5,       /* dest = src|~dest ;   PDno,   GXorReverse,    0xB */
    0x0F,       /* dest = ~src;         Pn,     GXcopyInverted, 0xC */
    0xAF,       /* dest |= ~src;        DPno,   GXorInverted,   0xD */
    0x5F,       /* dest = ~src|~dest;   DPan,   GXnand,         0xE */
    0xFF,       /* dest = 0xFF;         1,      GXset,          0xF */
};

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)
static const unsigned char myrops[] = {
   	3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
   };
#endif

/* 300 series */
#if 0
static void
XGI300Sync(void)
{
	XGI300Idle
}
#endif
static void
XGI310Sync(void)
{
	XGI310Idle
}
#if 0
static void
XGI300SetupForScreenToScreenCopy(int xdir, int ydir, int rop,
                                unsigned int planemask, int trans_color)
{
	XGI300SetupDSTColorDepth(xgi_video_info.DstColor);
	XGI300SetupSRCPitch(xgi_video_info.video_linelength)
	XGI300SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)

	if(trans_color != -1) {
		XGI300SetupROP(0x0A)
		XGI300SetupSRCTrans(trans_color)
		XGI300SetupCMDFlag(TRANSPARENT_BITBLT)
	} else {
	        XGI300SetupROP(XGIALUConv[rop])
	}
	if(xdir > 0) {
		XGI300SetupCMDFlag(X_INC)
	}
	if(ydir > 0) {
		XGI300SetupCMDFlag(Y_INC)
	}
}

static void
XGI300SubsequentScreenToScreenCopy(int src_x, int src_y, int dst_x, int dst_y,
                                int width, int height)
{
	long srcbase, dstbase;

	srcbase = dstbase = 0;
	if (src_y >= 2048) {
		srcbase = xgi_video_info.video_linelength * src_y;
		src_y = 0;
	}
	if (dst_y >= 2048) {
		dstbase = xgi_video_info.video_linelength * dst_y;
		dst_y = 0;
	}

	XGI300SetupSRCBase(srcbase);
	XGI300SetupDSTBase(dstbase);

	if(!(xgi_video_info.CommandReg & X_INC))  {
		src_x += width-1;
		dst_x += width-1;
	}
	if(!(xgi_video_info.CommandReg & Y_INC))  {
		src_y += height-1;
		dst_y += height-1;
	}
	XGI300SetupRect(width, height)
	XGI300SetupSRCXY(src_x, src_y)
	XGI300SetupDSTXY(dst_x, dst_y)
	XGI300DoCMD
}

static void
XGI300SetupForSolidFill(int color, int rop, unsigned int planemask)
{
	XGI300SetupPATFG(color)
	XGI300SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)
	XGI300SetupDSTColorDepth(xgi_video_info.DstColor);
	XGI300SetupROP(XGIPatALUConv[rop])
	XGI300SetupCMDFlag(PATFG)
}

static void
XGI300SubsequentSolidFillRect(int x, int y, int w, int h)
{
	long dstbase;

	dstbase = 0;
	if(y >= 2048) {
		dstbase = xgi_video_info.video_linelength * y;
		y = 0;
	}
	XGI300SetupDSTBase(dstbase)
	XGI300SetupDSTXY(x,y)
	XGI300SetupRect(w,h)
	XGI300SetupCMDFlag(X_INC | Y_INC | BITBLT)
	XGI300DoCMD
}
#endif
/* 310/325 series ------------------------------------------------ */

static void
XGI310SetupForScreenToScreenCopy(int xdir, int ydir, int rop,
                                unsigned int planemask, int trans_color)
{
	XGI310SetupDSTColorDepth(xgi_video_info.DstColor);
	XGI310SetupSRCPitch(xgi_video_info.video_linelength)
	XGI310SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)
	if (trans_color != -1) {
		XGI310SetupROP(0x0A)
		XGI310SetupSRCTrans(trans_color)
		XGI310SetupCMDFlag(TRANSPARENT_BITBLT)
	} else {
	        XGI310SetupROP(XGIALUConv[rop])
		/* Set command - not needed, both 0 */
		/* XGISetupCMDFlag(BITBLT | SRCVIDEO) */
	}
	XGI310SetupCMDFlag(xgi_video_info.XGI310_AccelDepth)
	/* TW: The 310/325 series is smart enough to know the direction */
}

static void
XGI310SubsequentScreenToScreenCopy(int src_x, int src_y, int dst_x, int dst_y,
                                int width, int height)
{
	long srcbase, dstbase;
	int mymin, mymax;

	srcbase = dstbase = 0;
	mymin = min(src_y, dst_y);
	mymax = max(src_y, dst_y);

	/* Although the chip knows the direction to use
	 * if the source and destination areas overlap,
	 * that logic fails if we fiddle with the bitmap
	 * addresses. Therefore, we check if the source
	 * and destination blitting areas overlap and
	 * adapt the bitmap addresses synchronously
	 * if the coordinates exceed the valid range.
	 * The the areas do not overlap, we do our
	 * normal check.
	 */
	if((mymax - mymin) < height) {
	   if((src_y >= 2048) || (dst_y >= 2048)) {
	      srcbase = xgi_video_info.video_linelength * mymin;
	      dstbase = xgi_video_info.video_linelength * mymin;
	      src_y -= mymin;
	      dst_y -= mymin;
	   }
	} else {
	   if(src_y >= 2048) {
	      srcbase = xgi_video_info.video_linelength * src_y;
	      src_y = 0;
	   }
	   if(dst_y >= 2048) {
	      dstbase = xgi_video_info.video_linelength * dst_y;
	      dst_y = 0;
	   }
	}

	XGI310SetupSRCBase(srcbase);
	XGI310SetupDSTBase(dstbase);
	XGI310SetupRect(width, height)
	XGI310SetupSRCXY(src_x, src_y)
	XGI310SetupDSTXY(dst_x, dst_y)
	XGI310DoCMD
}

static void
XGI310SetupForSolidFill(int color, int rop, unsigned int planemask)
{
	XGI310SetupPATFG(color)
	XGI310SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)
	XGI310SetupDSTColorDepth(xgi_video_info.DstColor);
	XGI310SetupROP(XGIPatALUConv[rop])
	XGI310SetupCMDFlag(PATFG | xgi_video_info.XGI310_AccelDepth)
}

static void
XGI310SubsequentSolidFillRect(int x, int y, int w, int h)
{
	long dstbase;

	dstbase = 0;
	if(y >= 2048) {
		dstbase = xgi_video_info.video_linelength * y;
		y = 0;
	}
	XGI310SetupDSTBase(dstbase)
	XGI310SetupDSTXY(x,y)
	XGI310SetupRect(w,h)
	XGI310SetupCMDFlag(BITBLT)
	XGI310DoCMD
}

/* --------------------------------------------------------------------- */

/* The exported routines */

int XGIfb_initaccel(void)
{
#ifdef XGIFB_USE_SPINLOCKS
    spin_lock_init(&xgi_video_info.lockaccel);
#endif
    return(0);
}

void XGIfb_syncaccel(void)
{

    XGI310Sync();

}

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)  /* --- KERNEL 2.5.34 and later --- */

int fbcon_XGI_sync(struct fb_info *info)
{
    if(!XGIfb_accel) return 0;
    CRITFLAGS

    XGI310Sync();

   CRITEND
   return 0;
}

void fbcon_XGI_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
   int col=0;
   CRITFLAGS


   if(!rect->width || !rect->height)
   	return;

   if(!XGIfb_accel) {
	cfb_fillrect(info, rect);
	return;
   }

   switch(info->var.bits_per_pixel) {
		case 8: col = rect->color;
			break;
		case 16: col = ((u32 *)(info->pseudo_palette))[rect->color];
			 break;
		case 32: col = ((u32 *)(info->pseudo_palette))[rect->color];
			 break;
	}


	   CRITBEGIN
	   XGI310SetupForSolidFill(col, myrops[rect->rop], 0);
	   XGI310SubsequentSolidFillRect(rect->dx, rect->dy, rect->width, rect->height);
	   CRITEND
	   XGI310Sync();


}

void fbcon_XGI_copyarea(struct fb_info *info, const struct fb_copyarea *area)
{
   int xdir, ydir;
   CRITFLAGS


   if(!XGIfb_accel) {
   	cfb_copyarea(info, area);
	return;
   }

   if(!area->width || !area->height)
   	return;

   if(area->sx < area->dx) xdir = 0;
   else                    xdir = 1;
   if(area->sy < area->dy) ydir = 0;
   else                    ydir = 1;

      CRITBEGIN
      XGI310SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
      XGI310SubsequentScreenToScreenCopy(area->sx, area->sy, area->dx, area->dy, area->width, area->height);
      CRITEND
      XGI310Sync();

}

#endif

#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33)  /* ------ KERNEL <2.5.34 ------ */

void fbcon_XGI_bmove(struct display *p, int srcy, int srcx,
			    int dsty, int dstx, int height, int width)
{
        int xdir, ydir;
	CRITFLAGS

	if(!xgi_video_info.accel) {
	    switch(xgi_video_info.video_bpp) {
	    case 8:
#ifdef FBCON_HAS_CFB8
	       fbcon_cfb8_bmove(p, srcy, srcx, dsty, dstx, height, width);
#endif
	       break;
	    case 16:
#ifdef FBCON_HAS_CFB16
	       fbcon_cfb16_bmove(p, srcy, srcx, dsty, dstx, height, width);
#endif
	       break;
	    case 32:
#ifdef FBCON_HAS_CFB32
	       fbcon_cfb32_bmove(p, srcy, srcx, dsty, dstx, height, width);
#endif
	       break;
            }
	    return;
	}

	srcx *= fontwidth(p);
	srcy *= fontheight(p);
	dstx *= fontwidth(p);
	dsty *= fontheight(p);
	width *= fontwidth(p);
	height *= fontheight(p);

	if(srcx < dstx) xdir = 0;
	else            xdir = 1;
	if(srcy < dsty) ydir = 0;
	else            ydir = 1;


	   CRITBEGIN
	   XGI310SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
	   XGI310SubsequentScreenToScreenCopy(srcx, srcy, dstx, dsty, width, height);
	   CRITEND
	   XGI310Sync();
#if 0
	   printk(KERN_INFO "XGI_bmove sx %d sy %d dx %d dy %d w %d h %d\n",
		srcx, srcy, dstx, dsty, width, height);
#endif

}


static void fbcon_XGI_clear(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width, int color)
{
	CRITFLAGS

	srcx *= fontwidth(p);
	srcy *= fontheight(p);
	width *= fontwidth(p);
	height *= fontheight(p);


	   CRITBEGIN
	   XGI310SetupForSolidFill(color, 3, 0);
	   XGI310SubsequentSolidFillRect(srcx, srcy, width, height);
	   CRITEND
	   XGI310Sync();

}

void fbcon_XGI_clear8(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width)
{
	u32 bgx;

	if(!xgi_video_info.accel) {
#ifdef FBCON_HAS_CFB8
	    fbcon_cfb8_clear(conp, p, srcy, srcx, height, width);
#endif
	    return;
	}

	bgx = attr_bgcol_ec(p, conp);
	fbcon_XGI_clear(conp, p, srcy, srcx, height, width, bgx);
}

void fbcon_XGI_clear16(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width)
{
	u32 bgx;
	if(!xgi_video_info.accel) {
#ifdef FBCON_HAS_CFB16
	    fbcon_cfb16_clear(conp, p, srcy, srcx, height, width);
#endif
	    return;
	}

	bgx = ((u_int16_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
	fbcon_XGI_clear(conp, p, srcy, srcx, height, width, bgx);
}

void fbcon_XGI_clear32(struct vc_data *conp, struct display *p,
			int srcy, int srcx, int height, int width)
{
	u32 bgx;

	if(!xgi_video_info.accel) {
#ifdef FBCON_HAS_CFB32
	    fbcon_cfb32_clear(conp, p, srcy, srcx, height, width);
#endif
	    return;
	}

	bgx = ((u_int32_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
	fbcon_XGI_clear(conp, p, srcy, srcx, height, width, bgx);
}

void fbcon_XGI_revc(struct display *p, int srcx, int srcy)
{
	CRITFLAGS

	if(!xgi_video_info.accel) {
	    switch(xgi_video_info.video_bpp) {
	    case 16:
#ifdef FBCON_HAS_CFB16
	       fbcon_cfb16_revc(p, srcx, srcy);
#endif
	       break;
	    case 32:
#ifdef FBCON_HAS_CFB32
	       fbcon_cfb32_revc(p, srcx, srcy);
#endif
	       break;
            }
	    return;
	}

	srcx *= fontwidth(p);
	srcy *= fontheight(p);


	   CRITBEGIN
	   XGI310SetupForSolidFill(0, 0x0a, 0);
	   XGI310SubsequentSolidFillRect(srcx, srcy, fontwidth(p), fontheight(p));
	   CRITEND
	   XGI310Sync();

}

#ifdef FBCON_HAS_CFB8
struct display_switch fbcon_XGI8 = {
	setup:			fbcon_cfb8_setup,
	bmove:			fbcon_XGI_bmove,
	clear:			fbcon_XGI_clear8,
	putc:			fbcon_cfb8_putc,
	putcs:			fbcon_cfb8_putcs,
	revc:			fbcon_cfb8_revc,
	clear_margins:		fbcon_cfb8_clear_margins,
	fontwidthmask:		FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
};
#endif
#ifdef FBCON_HAS_CFB16
struct display_switch fbcon_XGI16 = {
	setup:			fbcon_cfb16_setup,
	bmove:			fbcon_XGI_bmove,
	clear:			fbcon_XGI_clear16,
	putc:			fbcon_cfb16_putc,
	putcs:			fbcon_cfb16_putcs,
	revc:			fbcon_XGI_revc,
	clear_margins:		fbcon_cfb16_clear_margins,
	fontwidthmask:		FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
};
#endif
#ifdef FBCON_HAS_CFB32
struct display_switch fbcon_XGI32 = {
	setup:			fbcon_cfb32_setup,
	bmove:			fbcon_XGI_bmove,
	clear:			fbcon_XGI_clear32,
	putc:			fbcon_cfb32_putc,
	putcs:			fbcon_cfb32_putcs,
	revc:			fbcon_XGI_revc,
	clear_margins:		fbcon_cfb32_clear_margins,
	fontwidthmask:		FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
};
#endif

#endif /* KERNEL VERSION */
Commit	Line	Data
d7636e0b	1	/*
	2	* XGI 300/630/730/540/315/550/650/740 frame buffer driver
	3	* for Linux kernels 2.4.x and 2.5.x
	4	*
	5	* 2D acceleration part
	6	*
	7	* Based on the X driver's XGI300_accel.c which is
	8	* Copyright Xavier Ducoin <x.ducoin@lectra.com>
	9	* Copyright 2002 by Thomas Winischhofer, Vienna, Austria
	10	* and XGI310_accel.c which is
	11	* Copyright 2002 by Thomas Winischhofer, Vienna, Austria
	12	*
	13	* Author: Thomas Winischhofer <thomas@winischhofer.net>
	14	* (see http://www.winischhofer.net/
	15	* for more information and updates)
	16	*/
	17
	18	//#include <linux/config.h>
	19	#include <linux/version.h>
	20	#include <linux/module.h>
	21	#include <linux/kernel.h>
	22	#include <linux/errno.h>
	23	#include <linux/string.h>
	24	#include <linux/mm.h>
	25	#include <linux/tty.h>
	26	#include <linux/slab.h>
	27	#include <linux/delay.h>
	28	#include <linux/fb.h>
	29	#include <linux/console.h>
	30	#include <linux/selection.h>
	31	#include <linux/ioport.h>
	32	#include <linux/init.h>
	33	#include <linux/pci.h>
	34	#include <linux/vt_kern.h>
	35	#include <linux/capability.h>
	36	#include <linux/fs.h>
	37	#include <linux/agp_backend.h>
	38
	39	#include <linux/types.h>
	40	/*
	41	#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
	42	#include <linux/XGIfb.h>
	43	#else
	44	#include <video/XGIfb.h>
	45	#endif
	46	*/
	47	#include <asm/io.h>
	48
	49	#ifdef CONFIG_MTRR
	50	#include <asm/mtrr.h>
	51	#endif
	52
	53	#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
	54	#include <video/fbcon.h>
	55	#include <video/fbcon-cfb8.h>
	56	#include <video/fbcon-cfb16.h>
	57	#include <video/fbcon-cfb24.h>
	58	#include <video/fbcon-cfb32.h>
	59	#endif
	60
	61	#include "osdef.h"
	62	#include "vgatypes.h"
	63	#include "vb_struct.h"
	64	#include "XGIfb.h"
65	#include "XGI_accel.h"
66
67
68	extern struct video_info xgi_video_info;
69	extern int XGIfb_accel;
70
71	static const int XGIALUConv[] =
72	{
73	0x00, /* dest = 0; 0, GXclear, 0 */
74	0x88, /* dest &= src; DSa, GXand, 0x1 */
75	0x44, /* dest = src & ~dest; SDna, GXandReverse, 0x2 */
76	0xCC, /* dest = src; S, GXcopy, 0x3 */
77	0x22, /* dest &= ~src; DSna, GXandInverted, 0x4 */
78	0xAA, /* dest = dest; D, GXnoop, 0x5 */
79	0x66, /* dest = ^src; DSx, GXxor, 0x6 */
80	0xEE, /* dest \|= src; DSo, GXor, 0x7 */
81	0x11, /* dest = ~src & ~dest; DSon, GXnor, 0x8 */
82	0x99, /* dest ^= ~src ; DSxn, GXequiv, 0x9 */
83	0x55, /* dest = ~dest; Dn, GXInvert, 0xA */
84	0xDD, /* dest = src\|~dest ; SDno, GXorReverse, 0xB */
85	0x33, /* dest = ~src; Sn, GXcopyInverted, 0xC */
86	0xBB, /* dest \|= ~src; DSno, GXorInverted, 0xD */
87	0x77, /* dest = ~src\|~dest; DSan, GXnand, 0xE */
88	0xFF, /* dest = 0xFF; 1, GXset, 0xF */
89	};
90	/* same ROP but with Pattern as Source */
91	static const int XGIPatALUConv[] =
92	{
93	0x00, /* dest = 0; 0, GXclear, 0 */
94	0xA0, /* dest &= src; DPa, GXand, 0x1 */
95	0x50, /* dest = src & ~dest; PDna, GXandReverse, 0x2 */
96	0xF0, /* dest = src; P, GXcopy, 0x3 */
97	0x0A, /* dest &= ~src; DPna, GXandInverted, 0x4 */
98	0xAA, /* dest = dest; D, GXnoop, 0x5 */
99	0x5A, /* dest = ^src; DPx, GXxor, 0x6 */
100	0xFA, /* dest \|= src; DPo, GXor, 0x7 */
101	0x05, /* dest = ~src & ~dest; DPon, GXnor, 0x8 */
102	0xA5, /* dest ^= ~src ; DPxn, GXequiv, 0x9 */
103	0x55, /* dest = ~dest; Dn, GXInvert, 0xA */
104	0xF5, /* dest = src\|~dest ; PDno, GXorReverse, 0xB */
105	0x0F, /* dest = ~src; Pn, GXcopyInverted, 0xC */
106	0xAF, /* dest \|= ~src; DPno, GXorInverted, 0xD */
107	0x5F, /* dest = ~src\|~dest; DPan, GXnand, 0xE */
108	0xFF, /* dest = 0xFF; 1, GXset, 0xF */
109	};
110
111	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)
112	static const unsigned char myrops[] = {
113	3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
114	};
115	#endif
116
117	/* 300 series */
118	#if 0
119	static void
120	XGI300Sync(void)
121	{
122	XGI300Idle
123	}
124	#endif
125	static void
126	XGI310Sync(void)
127	{
128	XGI310Idle
129	}
130	#if 0
131	static void
132	XGI300SetupForScreenToScreenCopy(int xdir, int ydir, int rop,
133	unsigned int planemask, int trans_color)
134	{
135	XGI300SetupDSTColorDepth(xgi_video_info.DstColor);
136	XGI300SetupSRCPitch(xgi_video_info.video_linelength)
137	XGI300SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)
138
139	if(trans_color != -1) {
140	XGI300SetupROP(0x0A)
141	XGI300SetupSRCTrans(trans_color)
142	XGI300SetupCMDFlag(TRANSPARENT_BITBLT)
143	} else {
144	XGI300SetupROP(XGIALUConv[rop])
145	}
146	if(xdir > 0) {
147	XGI300SetupCMDFlag(X_INC)
148	}
149	if(ydir > 0) {
150	XGI300SetupCMDFlag(Y_INC)
151	}
152	}
153
154	static void
155	XGI300SubsequentScreenToScreenCopy(int src_x, int src_y, int dst_x, int dst_y,
156	int width, int height)
157	{
158	long srcbase, dstbase;
159
160	srcbase = dstbase = 0;
161	if (src_y >= 2048) {
162	srcbase = xgi_video_info.video_linelength * src_y;
163	src_y = 0;
164	}
165	if (dst_y >= 2048) {
166	dstbase = xgi_video_info.video_linelength * dst_y;
167	dst_y = 0;
168	}
169
170	XGI300SetupSRCBase(srcbase);
171	XGI300SetupDSTBase(dstbase);
172
173	if(!(xgi_video_info.CommandReg & X_INC)) {
174	src_x += width-1;
175	dst_x += width-1;
176	}
177	if(!(xgi_video_info.CommandReg & Y_INC)) {
178	src_y += height-1;
179	dst_y += height-1;
180	}
181	XGI300SetupRect(width, height)
182	XGI300SetupSRCXY(src_x, src_y)
183	XGI300SetupDSTXY(dst_x, dst_y)
184	XGI300DoCMD
185	}
186
187	static void
188	XGI300SetupForSolidFill(int color, int rop, unsigned int planemask)
189	{
190	XGI300SetupPATFG(color)
191	XGI300SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)
192	XGI300SetupDSTColorDepth(xgi_video_info.DstColor);
193	XGI300SetupROP(XGIPatALUConv[rop])
194	XGI300SetupCMDFlag(PATFG)
195	}
196
197	static void
198	XGI300SubsequentSolidFillRect(int x, int y, int w, int h)
199	{
200	long dstbase;
201
202	dstbase = 0;
203	if(y >= 2048) {
204	dstbase = xgi_video_info.video_linelength * y;
205	y = 0;
206	}
207	XGI300SetupDSTBase(dstbase)
208	XGI300SetupDSTXY(x,y)
209	XGI300SetupRect(w,h)
210	XGI300SetupCMDFlag(X_INC \| Y_INC \| BITBLT)
211	XGI300DoCMD
212	}
213	#endif
214	/* 310/325 series ------------------------------------------------ */
215
216	static void
217	XGI310SetupForScreenToScreenCopy(int xdir, int ydir, int rop,
218	unsigned int planemask, int trans_color)
219	{
220	XGI310SetupDSTColorDepth(xgi_video_info.DstColor);
221	XGI310SetupSRCPitch(xgi_video_info.video_linelength)
222	XGI310SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)
223	if (trans_color != -1) {
224	XGI310SetupROP(0x0A)
225	XGI310SetupSRCTrans(trans_color)
226	XGI310SetupCMDFlag(TRANSPARENT_BITBLT)
227	} else {
228	XGI310SetupROP(XGIALUConv[rop])
229	/* Set command - not needed, both 0 */
230	/* XGISetupCMDFlag(BITBLT \| SRCVIDEO) */
231	}
232	XGI310SetupCMDFlag(xgi_video_info.XGI310_AccelDepth)
233	/* TW: The 310/325 series is smart enough to know the direction */
234	}
235
236	static void
237	XGI310SubsequentScreenToScreenCopy(int src_x, int src_y, int dst_x, int dst_y,
238	int width, int height)
239	{
240	long srcbase, dstbase;
241	int mymin, mymax;
242
243	srcbase = dstbase = 0;
244	mymin = min(src_y, dst_y);
245	mymax = max(src_y, dst_y);
246
247	/* Although the chip knows the direction to use
248	* if the source and destination areas overlap,
249	* that logic fails if we fiddle with the bitmap
250	* addresses. Therefore, we check if the source
251	* and destination blitting areas overlap and
252	* adapt the bitmap addresses synchronously
253	* if the coordinates exceed the valid range.
254	* The the areas do not overlap, we do our
255	* normal check.
256	*/
257	if((mymax - mymin) < height) {
258	if((src_y >= 2048) \|\| (dst_y >= 2048)) {
259	srcbase = xgi_video_info.video_linelength * mymin;
260	dstbase = xgi_video_info.video_linelength * mymin;
261	src_y -= mymin;
262	dst_y -= mymin;
263	}
264	} else {
265	if(src_y >= 2048) {
266	srcbase = xgi_video_info.video_linelength * src_y;
267	src_y = 0;
268	}
269	if(dst_y >= 2048) {
270	dstbase = xgi_video_info.video_linelength * dst_y;
271	dst_y = 0;
272	}
273	}
274
275	XGI310SetupSRCBase(srcbase);
276	XGI310SetupDSTBase(dstbase);
277	XGI310SetupRect(width, height)
278	XGI310SetupSRCXY(src_x, src_y)
279	XGI310SetupDSTXY(dst_x, dst_y)
280	XGI310DoCMD
281	}
282
283	static void
284	XGI310SetupForSolidFill(int color, int rop, unsigned int planemask)
285	{
286	XGI310SetupPATFG(color)
287	XGI310SetupDSTRect(xgi_video_info.video_linelength, 0xFFF)
288	XGI310SetupDSTColorDepth(xgi_video_info.DstColor);
289	XGI310SetupROP(XGIPatALUConv[rop])
290	XGI310SetupCMDFlag(PATFG \| xgi_video_info.XGI310_AccelDepth)
291	}
292
293	static void
294	XGI310SubsequentSolidFillRect(int x, int y, int w, int h)
295	{
296	long dstbase;
297
298	dstbase = 0;
299	if(y >= 2048) {
300	dstbase = xgi_video_info.video_linelength * y;
301	y = 0;
302	}
303	XGI310SetupDSTBase(dstbase)
304	XGI310SetupDSTXY(x,y)
305	XGI310SetupRect(w,h)
306	XGI310SetupCMDFlag(BITBLT)
307	XGI310DoCMD
308	}
309
310	/* --------------------------------------------------------------------- */
311
312	/* The exported routines */
313
314	int XGIfb_initaccel(void)
315	{
316	#ifdef XGIFB_USE_SPINLOCKS
317	spin_lock_init(&xgi_video_info.lockaccel);
318	#endif
319	return(0);
320	}
321
322	void XGIfb_syncaccel(void)
323	{
324
325	XGI310Sync();
326
327	}
328
329	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34) /* --- KERNEL 2.5.34 and later --- */
330
331	int fbcon_XGI_sync(struct fb_info *info)
332	{
333	if(!XGIfb_accel) return 0;
334	CRITFLAGS
335
336	XGI310Sync();
337
338	CRITEND
339	return 0;
340	}
341
342	void fbcon_XGI_fillrect(struct fb_info info, const struct fb_fillrect rect)
343	{
344	int col=0;
345	CRITFLAGS
346
347
348	if(!rect->width \|\| !rect->height)
349	return;
350
351	if(!XGIfb_accel) {
352	cfb_fillrect(info, rect);
353	return;
354	}
355
356	switch(info->var.bits_per_pixel) {
357	case 8: col = rect->color;
358	break;
359	case 16: col = ((u32 *)(info->pseudo_palette))[rect->color];
360	break;
361	case 32: col = ((u32 *)(info->pseudo_palette))[rect->color];
362	break;
363	}
364
365
366	CRITBEGIN
367	XGI310SetupForSolidFill(col, myrops[rect->rop], 0);
368	XGI310SubsequentSolidFillRect(rect->dx, rect->dy, rect->width, rect->height);
369	CRITEND
370	XGI310Sync();
371
372
373	}
374
375	void fbcon_XGI_copyarea(struct fb_info info, const struct fb_copyarea area)
376	{
377	int xdir, ydir;
378	CRITFLAGS
379
380
381	if(!XGIfb_accel) {
382	cfb_copyarea(info, area);
383	return;
384	}
385
386	if(!area->width \|\| !area->height)
387	return;
388
389	if(area->sx < area->dx) xdir = 0;
390	else xdir = 1;
391	if(area->sy < area->dy) ydir = 0;
392	else ydir = 1;
393
394	CRITBEGIN
395	XGI310SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
396	XGI310SubsequentScreenToScreenCopy(area->sx, area->sy, area->dx, area->dy, area->width, area->height);
397	CRITEND
398	XGI310Sync();
399
400	}
401
402	#endif
403
404	#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33) /* ------ KERNEL <2.5.34 ------ */
405
406	void fbcon_XGI_bmove(struct display *p, int srcy, int srcx,
407	int dsty, int dstx, int height, int width)
408	{
409	int xdir, ydir;
410	CRITFLAGS
411
412	if(!xgi_video_info.accel) {
413	switch(xgi_video_info.video_bpp) {
414	case 8:
415	#ifdef FBCON_HAS_CFB8
416	fbcon_cfb8_bmove(p, srcy, srcx, dsty, dstx, height, width);
417	#endif
418	break;
419	case 16:
420	#ifdef FBCON_HAS_CFB16
421	fbcon_cfb16_bmove(p, srcy, srcx, dsty, dstx, height, width);
422	#endif
423	break;
424	case 32:
425	#ifdef FBCON_HAS_CFB32
426	fbcon_cfb32_bmove(p, srcy, srcx, dsty, dstx, height, width);
427	#endif
428	break;
429	}
430	return;
431	}
432
433	srcx *= fontwidth(p);
434	srcy *= fontheight(p);
435	dstx *= fontwidth(p);
436	dsty *= fontheight(p);
437	width *= fontwidth(p);
438	height *= fontheight(p);
439
440	if(srcx < dstx) xdir = 0;
441	else xdir = 1;
442	if(srcy < dsty) ydir = 0;
443	else ydir = 1;
444
445
446	CRITBEGIN
447	XGI310SetupForScreenToScreenCopy(xdir, ydir, 3, 0, -1);
448	XGI310SubsequentScreenToScreenCopy(srcx, srcy, dstx, dsty, width, height);
449	CRITEND
450	XGI310Sync();
451	#if 0
452	printk(KERN_INFO "XGI_bmove sx %d sy %d dx %d dy %d w %d h %d\n",
453	srcx, srcy, dstx, dsty, width, height);
454	#endif
455
456	}
457
458
459	static void fbcon_XGI_clear(struct vc_data conp, struct display p,
460	int srcy, int srcx, int height, int width, int color)
461	{
462	CRITFLAGS
463
464	srcx *= fontwidth(p);
465	srcy *= fontheight(p);
466	width *= fontwidth(p);
467	height *= fontheight(p);
468
469
470	CRITBEGIN
471	XGI310SetupForSolidFill(color, 3, 0);
472	XGI310SubsequentSolidFillRect(srcx, srcy, width, height);
473	CRITEND
474	XGI310Sync();
475
476	}
477
478	void fbcon_XGI_clear8(struct vc_data conp, struct display p,
479	int srcy, int srcx, int height, int width)
480	{
481	u32 bgx;
482
483	if(!xgi_video_info.accel) {
484	#ifdef FBCON_HAS_CFB8
485	fbcon_cfb8_clear(conp, p, srcy, srcx, height, width);
486	#endif
487	return;
488	}
489
490	bgx = attr_bgcol_ec(p, conp);
491	fbcon_XGI_clear(conp, p, srcy, srcx, height, width, bgx);
492	}
493
494	void fbcon_XGI_clear16(struct vc_data conp, struct display p,
495	int srcy, int srcx, int height, int width)
496	{
497	u32 bgx;
498	if(!xgi_video_info.accel) {
499	#ifdef FBCON_HAS_CFB16
500	fbcon_cfb16_clear(conp, p, srcy, srcx, height, width);
501	#endif
502	return;
503	}
504
505	bgx = ((u_int16_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
506	fbcon_XGI_clear(conp, p, srcy, srcx, height, width, bgx);
507	}
508
509	void fbcon_XGI_clear32(struct vc_data conp, struct display p,
510	int srcy, int srcx, int height, int width)
511	{
512	u32 bgx;
513
514	if(!xgi_video_info.accel) {
515	#ifdef FBCON_HAS_CFB32
516	fbcon_cfb32_clear(conp, p, srcy, srcx, height, width);
517	#endif
518	return;
519	}
520
521	bgx = ((u_int32_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
522	fbcon_XGI_clear(conp, p, srcy, srcx, height, width, bgx);
523	}
524
525	void fbcon_XGI_revc(struct display *p, int srcx, int srcy)
526	{
527	CRITFLAGS
528
529	if(!xgi_video_info.accel) {
530	switch(xgi_video_info.video_bpp) {
531	case 16:
532	#ifdef FBCON_HAS_CFB16
533	fbcon_cfb16_revc(p, srcx, srcy);
534	#endif
535	break;
536	case 32:
537	#ifdef FBCON_HAS_CFB32
538	fbcon_cfb32_revc(p, srcx, srcy);
539	#endif
540	break;
541	}
542	return;
543	}
544
545	srcx *= fontwidth(p);
546	srcy *= fontheight(p);
547
548
549	CRITBEGIN
550	XGI310SetupForSolidFill(0, 0x0a, 0);
551	XGI310SubsequentSolidFillRect(srcx, srcy, fontwidth(p), fontheight(p));
552	CRITEND
553	XGI310Sync();
554
555	}
556
557	#ifdef FBCON_HAS_CFB8
558	struct display_switch fbcon_XGI8 = {
559	setup: fbcon_cfb8_setup,
560	bmove: fbcon_XGI_bmove,
561	clear: fbcon_XGI_clear8,
562	putc: fbcon_cfb8_putc,
563	putcs: fbcon_cfb8_putcs,
564	revc: fbcon_cfb8_revc,
565	clear_margins: fbcon_cfb8_clear_margins,
566	fontwidthmask: FONTWIDTH(4)\|FONTWIDTH(8)\|FONTWIDTH(12)\|FONTWIDTH(16)
567	};
568	#endif
569	#ifdef FBCON_HAS_CFB16
570	struct display_switch fbcon_XGI16 = {
571	setup: fbcon_cfb16_setup,
572	bmove: fbcon_XGI_bmove,
573	clear: fbcon_XGI_clear16,
574	putc: fbcon_cfb16_putc,
575	putcs: fbcon_cfb16_putcs,
576	revc: fbcon_XGI_revc,
577	clear_margins: fbcon_cfb16_clear_margins,
578	fontwidthmask: FONTWIDTH(4)\|FONTWIDTH(8)\|FONTWIDTH(12)\|FONTWIDTH(16)
579	};
580	#endif
581	#ifdef FBCON_HAS_CFB32
582	struct display_switch fbcon_XGI32 = {
583	setup: fbcon_cfb32_setup,
584	bmove: fbcon_XGI_bmove,
585	clear: fbcon_XGI_clear32,
586	putc: fbcon_cfb32_putc,
587	putcs: fbcon_cfb32_putcs,
588	revc: fbcon_XGI_revc,
589	clear_margins: fbcon_cfb32_clear_margins,
590	fontwidthmask: FONTWIDTH(4)\|FONTWIDTH(8)\|FONTWIDTH(12)\|FONTWIDTH(16)
591	};
592	#endif
593
594	#endif /* KERNEL VERSION */
595
596