drivers/video : move video drivers to drivers/video

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 858 insertions, 0 deletions

diff --git a/drivers/video/smiLynxEM.c b/drivers/video/smiLynxEM.c
new file mode 100644
index 0000000..20f9beb
--- /dev/null
+++ b/drivers/video/smiLynxEM.c
@@ -0,0 +1,858 @@
+/*
+ * (C) Copyright 1997-2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * smiLynxEM.c
+ *
+ * Silicon Motion graphic interface for sm810/sm710/sm712 accelerator
+ *
+ * modification history
+ * --------------------
+ * 04-18-2002 Rewritten for U-Boot <fgottschling@eltec.de>.
+ *
+ * 18-03-2004 - Unify videomodes handling with the ct69000
+ *            - The video output can be set via the variable "videoout"
+ *              in the environment.
+ *              videoout=1 output on LCD
+ *              videoout=2 output on CRT (default value)
+ *	                <p.aubert@staubli.com>
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_VIDEO_SMI_LYNXEM)
+
+#include <pci.h>
+#include <video_fb.h>
+#include "videomodes.h"
+/*
+ * Export Graphic Device
+ */
+GraphicDevice smi;
+
+/*
+ * SMI 710/712 have 4MB internal RAM; SMI 810 2MB internal + 2MB external
+ */
+#define VIDEO_MEM_SIZE	0x400000
+
+
+/*
+ * ISA mapped regs
+ */
+#define SMI_INDX_C4		(pGD->isaBase + 0x03c4)	   /* index reg */
+#define SMI_DATA_C5		(pGD->isaBase + 0x03c5)	   /* data reg */
+#define SMI_INDX_D4		(pGD->isaBase + 0x03d4)	   /* index reg */
+#define SMI_DATA_D5		(pGD->isaBase + 0x03d5)	   /* data reg */
+#define SMI_ISR1		(pGD->isaBase + 0x03ca)
+#define SMI_INDX_CE		(pGD->isaBase + 0x03ce)	   /* index reg */
+#define SMI_DATA_CF		(pGD->isaBase + 0x03cf)	   /* data reg */
+#define SMI_LOCK_REG		(pGD->isaBase + 0x03c3)	   /* unlock/lock ext crt reg */
+#define SMI_MISC_REG		(pGD->isaBase + 0x03c2)	   /* misc reg */
+#define SMI_LUT_MASK		(pGD->isaBase + 0x03c6)	   /* lut mask reg */
+#define SMI_LUT_START		(pGD->isaBase + 0x03c8)	   /* lut start index */
+#define SMI_LUT_RGB		(pGD->isaBase + 0x03c9)	   /* lut colors auto incr.*/
+#define SMI_INDX_ATTR		(pGD->isaBase + 0x03c0)	   /* attributes index reg */
+
+/*
+ * Video processor control
+ */
+typedef struct {
+	unsigned int   control;
+	unsigned int   colorKey;
+	unsigned int   colorKeyMask;
+	unsigned int   start;
+	unsigned short offset;
+	unsigned short width;
+	unsigned int   fifoPrio;
+	unsigned int   fifoERL;
+	unsigned int   YUVtoRGB;
+} SmiVideoProc;
+
+/*
+ * Video window control
+ */
+typedef struct {
+	unsigned short top;
+	unsigned short left;
+	unsigned short bottom;
+	unsigned short right;
+	unsigned int   srcStart;
+	unsigned short width;
+	unsigned short offset;
+	unsigned char  hStretch;
+	unsigned char  vStretch;
+} SmiVideoWin;
+
+/*
+ * Capture port control
+ */
+typedef struct {
+	unsigned int   control;
+	unsigned short topClip;
+	unsigned short leftClip;
+	unsigned short srcHeight;
+	unsigned short srcWidth;
+	unsigned int   srcBufStart1;
+	unsigned int   srcBufStart2;
+	unsigned short srcOffset;
+	unsigned short fifoControl;
+} SmiCapturePort;
+
+
+/*
+ * Register values for common video modes
+ */
+static char SMI_SCR[] = {
+	/* all modes */
+	0x10, 0xff, 0x11, 0xff, 0x12, 0xff, 0x13, 0xff, 0x15, 0x90,
+	0x17, 0x20, 0x18, 0xb1, 0x19, 0x00,
+};
+static char SMI_EXT_CRT[] = {
+	0x31, 0x00, 0x32, 0x00, 0x33, 0x00, 0x34, 0x00, 0x35, 0x00,
+	0x36, 0x00, 0x3b, 0x00, 0x3c, 0x00, 0x3d, 0x00, 0x3e, 0x00, 0x3f, 0x00,
+};
+static char SMI_ATTR [] = {
+	0x00, 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05,
+	0x06, 0x06, 0x07, 0x07, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a, 0x0b, 0x0b,
+	0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0f, 0x0f, 0x10, 0x41, 0x11, 0x00,
+	0x12, 0x0f, 0x13, 0x00, 0x14, 0x00,
+};
+static char SMI_GCR[18] = {
+	0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x40,
+	0x06, 0x05, 0x07, 0x0f, 0x08, 0xff,
+};
+static char SMI_SEQR[] = {
+	0x00, 0x00, 0x01, 0x01, 0x02, 0x0f, 0x03, 0x03, 0x04, 0x0e, 0x00, 0x03,
+};
+static char SMI_PCR [] = {
+	0x20, 0x04, 0x21, 0x30, 0x22, 0x00, 0x23, 0x00, 0x24, 0x00,
+};
+static char SMI_MCR[] = {
+	0x60, 0x01, 0x61, 0x00,
+#ifdef CONFIG_HMI1001
+	0x62, 0x74, /* Memory type is not configured by pins on HMI1001 */
+#endif
+};
+
+static char SMI_HCR[] = {
+	0x80, 0xff, 0x81, 0x07, 0x82, 0x00, 0x83, 0xff, 0x84, 0xff, 0x88, 0x00,
+	0x89, 0x02, 0x8a, 0x80, 0x8b, 0x01, 0x8c, 0xff, 0x8d, 0x00,
+};
+
+
+/*******************************************************************************
+ *
+ * Write SMI ISA register
+ */
+static void smiWrite (unsigned short index, char reg, char val)
+{
+	register GraphicDevice *pGD = (GraphicDevice *)&smi;
+
+	out8 ((pGD->isaBase + index), reg);
+	out8 ((pGD->isaBase + index + 1), val);
+}
+
+/*******************************************************************************
+ *
+ * Write a table of SMI ISA register
+ */
+static void smiLoadRegs (
+	unsigned int iReg,
+	unsigned int dReg,
+	char	     *regTab,
+	unsigned int tabSize
+	)
+{
+	register GraphicDevice *pGD  = (GraphicDevice *)&smi;
+	register int i;
+
+	for (i=0; i<tabSize; i+=2) {
+		if (iReg == SMI_INDX_ATTR) {
+			/* Reset the Flip Flop */
+			in8 (SMI_ISR1);
+			out8 (iReg, regTab[i]);
+			out8 (iReg, regTab[i+1]);
+		} else {
+			out8 (iReg, regTab[i]);
+			out8 (dReg, regTab[i+1]);
+		}
+	}
+}
+
+/*******************************************************************************
+ *
+ * Init capture port registers
+ */
+static void smiInitCapturePort (void)
+{
+	SmiCapturePort smiCP = { 0x01400600, 0x30, 0x40, 480, 640, 0, 0, 2560, 6 };
+	register GraphicDevice *pGD  = (GraphicDevice *)&smi;
+	register SmiCapturePort *pCP = (SmiCapturePort *)&smiCP;
+
+	out32r ((pGD->cprBase + 0x0004), ((pCP->topClip<<16)   | pCP->leftClip));
+	out32r ((pGD->cprBase + 0x0008), ((pCP->srcHeight<<16) | pCP->srcWidth));
+	out32r ((pGD->cprBase + 0x000c), pCP->srcBufStart1/8);
+	out32r ((pGD->cprBase + 0x0010), pCP->srcBufStart2/8);
+	out32r ((pGD->cprBase + 0x0014), pCP->srcOffset/8);
+	out32r ((pGD->cprBase + 0x0018), pCP->fifoControl);
+	out32r ((pGD->cprBase + 0x0000), pCP->control);
+}
+
+
+/*******************************************************************************
+ *
+ * Init video processor registers
+ */
+static void smiInitVideoProcessor (void)
+{
+	SmiVideoProc smiVP = { 0x100000, 0, 0, 0, 0, 1600, 0x1200543, 4, 0xededed };
+	SmiVideoWin  smiVW = { 0, 0, 599, 799, 0, 1600, 0, 0, 0 };
+	register GraphicDevice *pGD = (GraphicDevice *)&smi;
+	register SmiVideoProc  *pVP = (SmiVideoProc *)&smiVP;
+	register SmiVideoWin *pVWin = (SmiVideoWin *)&smiVW;
+
+	pVP->width    = pGD->plnSizeX * pGD->gdfBytesPP;
+	pVP->control |= pGD->gdfIndex << 16;
+	pVWin->bottom = pGD->winSizeY - 1;
+	pVWin->right  = pGD->winSizeX - 1;
+	pVWin->width  = pVP->width;
+
+	/* color key */
+	out32r ((pGD->vprBase + 0x0004), pVP->colorKey);
+
+	/* color key mask */
+	out32r ((pGD->vprBase + 0x0008), pVP->colorKeyMask);
+
+	/* data src start adrs */
+	out32r ((pGD->vprBase + 0x000c), pVP->start / 8);
+
+	/* data width and offset */
+	out32r ((pGD->vprBase + 0x0010),
+		((pVP->offset	/ 8 * pGD->gdfBytesPP) << 16) |
+		(pGD->plnSizeX / 8 * pGD->gdfBytesPP));
+
+	/* video window 1 */
+	out32r ((pGD->vprBase + 0x0014),
+		((pVWin->top << 16) | pVWin->left));
+
+	out32r ((pGD->vprBase + 0x0018),
+		((pVWin->bottom << 16) | pVWin->right));
+
+	out32r ((pGD->vprBase + 0x001c), pVWin->srcStart / 8);
+
+	out32r ((pGD->vprBase + 0x0020),
+		(((pVWin->offset / 8) << 16) | (pVWin->width / 8)));
+
+	out32r ((pGD->vprBase + 0x0024),
+		(((pVWin->hStretch) << 8) | pVWin->vStretch));
+
+	/* video window 2 */
+	out32r ((pGD->vprBase + 0x0028),
+		((pVWin->top << 16) | pVWin->left));
+
+	out32r ((pGD->vprBase + 0x002c),
+		((pVWin->bottom << 16) | pVWin->right));
+
+	out32r ((pGD->vprBase + 0x0030),
+		pVWin->srcStart / 8);
+
+	out32r ((pGD->vprBase + 0x0034),
+		(((pVWin->offset / 8) << 16) | (pVWin->width / 8)));
+
+	out32r ((pGD->vprBase + 0x0038),
+		(((pVWin->hStretch) << 8) | pVWin->vStretch));
+
+	/* fifo prio control */
+	out32r ((pGD->vprBase + 0x0054), pVP->fifoPrio);
+
+	/* fifo empty request levell */
+	out32r ((pGD->vprBase + 0x0058), pVP->fifoERL);
+
+	/* conversion constant */
+	out32r ((pGD->vprBase + 0x005c), pVP->YUVtoRGB);
+
+	/* vpr control word */
+	out32r ((pGD->vprBase + 0x0000), pVP->control);
+}
+
+/******************************************************************************
+ *
+ * Init drawing engine registers
+ */
+static void smiInitDrawingEngine (void)
+{
+	GraphicDevice *pGD = (GraphicDevice *)&smi;
+	unsigned int val;
+
+	/* don't start now */
+	out32r ((pGD->dprBase + 0x000c), 0x000f0000);
+
+	/* set rop2 to copypen */
+	val = 0xffff3ff0 & in32r ((pGD->dprBase + 0x000c));
+	out32r ((pGD->dprBase + 0x000c), (val | 0x8000 | 0x0c));
+
+	/* set clip rect */
+	out32r ((pGD->dprBase + 0x002c), 0);
+	out32r ((pGD->dprBase + 0x0030),
+		((pGD->winSizeY<<16) | pGD->winSizeX * pGD->gdfBytesPP ));
+
+	/* src row pitch */
+	val = 0xffff0000 & (in32r ((pGD->dprBase + 0x0010)));
+	out32r ((pGD->dprBase + 0x0010),
+		(val | pGD->plnSizeX * pGD->gdfBytesPP));
+
+	/* dst row pitch */
+	val = 0x0000ffff & (in32r ((pGD->dprBase + 0x0010)));
+	out32r ((pGD->dprBase + 0x0010),
+		(((pGD->plnSizeX * pGD->gdfBytesPP)<<16) | val));
+
+	/* window width src/dst */
+	out32r ((pGD->dprBase + 0x003c),
+		(((pGD->plnSizeX * pGD->gdfBytesPP & 0x0fff)<<16) |
+		 (pGD->plnSizeX * pGD->gdfBytesPP & 0x0fff)));
+	out16r ((pGD->dprBase + 0x001e), 0x0000);
+
+	/* src base adrs */
+	out32r ((pGD->dprBase + 0x0040),
+		(((pGD->frameAdrs/8) & 0x000fffff)));
+
+	/* dst base adrs */
+	out32r ((pGD->dprBase + 0x0044),
+		(((pGD->frameAdrs/8) & 0x000fffff)));
+
+	/* foreground color */
+	out32r ((pGD->dprBase + 0x0014), pGD->fg);
+
+	/* background color */
+	out32r ((pGD->dprBase + 0x0018), pGD->bg);
+
+	/* xcolor */
+	out32r ((pGD->dprBase + 0x0020), 0x00ffffff);
+
+	/* xcolor mask */
+	out32r ((pGD->dprBase + 0x0024), 0x00ffffff);
+
+	/* bit mask */
+	out32r ((pGD->dprBase + 0x0028), 0x00ffffff);
+
+	/* load mono pattern */
+	out32r ((pGD->dprBase + 0x0034), 0);
+	out32r ((pGD->dprBase + 0x0038), 0);
+}
+
+static struct pci_device_id supported[] = {
+	{ PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_710 },
+	{ PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_712 },
+	{ PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_810 },
+	{ }
+};
+
+/*****************************************************************************/
+static void smiLoadMsr (struct ctfb_res_modes *mode)
+{
+	unsigned char h_synch_high, v_synch_high;
+	register GraphicDevice *pGD  = (GraphicDevice *)&smi;
+
+	h_synch_high = (mode->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 0x40;	/* horizontal Synch High active */
+	v_synch_high = (mode->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 0x80;	/* vertical Synch High active */
+	out8 (SMI_MISC_REG, (h_synch_high | v_synch_high | 0x29));
+	/* upper64K==0x20, CLC2select==0x08, RAMenable==0x02!(todo), CGA==0x01
+	 * Selects the upper 64KB page.Bit5=1
+	 * CLK2 (left reserved in standard VGA) Bit3|2=1|0
+	 * Disables CPU access to frame buffer. Bit1=0
+	 * Sets the I/O address decode for ST01, FCR, and all CR registers
+	 * to the 3Dx I/O address range (CGA emulation). Bit0=1
+	 */
+}
+/*****************************************************************************/
+static void smiLoadCrt (struct ctfb_res_modes *var, int bits_per_pixel)
+{
+	unsigned char cr[0x7a];
+	int i;
+	unsigned int hd, hs, he, ht, hbs, hbe;	/* Horizontal.	*/
+	unsigned int vd, vs, ve, vt, vbs, vbe;	/* vertical */
+	unsigned int bpp, wd, dblscan, interlaced;
+
+	const int LineCompare = 0x3ff;
+	unsigned int TextScanLines = 1;	/* this is in fact a vertical zoom factor   */
+	register GraphicDevice *pGD  = (GraphicDevice *)&smi;
+
+	/* Horizontal */
+	hd = (var->xres) / 8;	/* HDisp.  */
+	hs = (var->xres + var->right_margin) / 8;	/* HsStrt  */
+	he = (var->xres + var->right_margin + var->hsync_len) / 8;	/* HsEnd   */
+	ht = (var->left_margin + var->xres + var->right_margin + var->hsync_len) / 8;	/* HTotal  */
+	/* Blank */
+	hbs = hd;
+	hbe = 0; /* Blank end at 0 */
+
+	/* Vertical */
+	vd = var->yres;		/* VDisplay   */
+	vs = var->yres + var->lower_margin;	/* VSyncStart */
+	ve = var->yres + var->lower_margin + var->vsync_len;	/* VSyncEnd */
+	vt = var->upper_margin + var->yres + var->lower_margin + var->vsync_len;	/* VTotal  */
+	vbs = vd;
+	vbe = 0;
+
+	bpp = bits_per_pixel;
+	dblscan = (var->vmode & FB_VMODE_DOUBLE) ? 1 : 0;
+	interlaced = var->vmode & FB_VMODE_INTERLACED;
+
+
+	if (bpp == 15)
+		bpp = 16;
+	wd = var->xres * bpp / 64;	/* double words per line */
+	if (interlaced) {	/* we divide all vertical timings, exept vd */
+		vs >>= 1;
+		vbs >>= 1;
+		ve >>= 1;
+		vt >>= 1;
+	}
+
+	memset (cr, 0, sizeof (cr));
+	cr[0x00] = ht - 5;
+	cr[0x01] = hd - 1;
+	cr[0x02] = hbs - 1;
+	cr[0x03] = (hbe & 0x1F);
+	cr[0x04] = hs;
+	cr[0x05] = ((hbe & 0x20) << 2) | (he & 0x1f);
+
+	cr[0x06] = (vt - 2) & 0xFF;
+	cr[0x07] = (((vt - 2) & 0x100) >> 8)
+		| (((vd - 1) & 0x100) >> 7)
+		| ((vs & 0x100) >> 6)
+		| (((vbs - 1) & 0x100) >> 5)
+		| ((LineCompare & 0x100) >> 4)
+		| (((vt - 2) & 0x200) >> 4)
+		| (((vd - 1) & 0x200) >> 3)
+		| ((vs & 0x200) >> 2);
+
+	cr[0x30] = ((vt - 2) & 0x400) >> 7
+		| (((vd - 1) & 0x400) >> 8)
+		| (((vbs - 1) & 0x400) >> 9)
+		| ((vs & 0x400) >> 10)
+		| (interlaced) ? 0x80 : 0;
+
+
+	cr[0x08] = 0x00;
+	cr[0x09] = (dblscan << 7)
+		| ((LineCompare & 0x200) >> 3)
+		| (((vbs - 1) & 0x200) >> 4)
+		| (TextScanLines - 1);
+
+	cr[0x10] = vs & 0xff;	/* VSyncPulseStart */
+	cr[0x11] = (ve & 0x0f);
+	cr[0x12] = (vd - 1) & 0xff;	/* LineCount  */
+	cr[0x13] = wd & 0xff;
+	cr[0x14] = 0x40;
+	cr[0x15] = (vbs - 1) & 0xff;
+	cr[0x16] = vbe & 0xff;
+	cr[0x17] = 0xe3;	/* but it does not work */
+	cr[0x18] = 0xff & LineCompare;
+	cr[0x22] = 0x00;	/* todo? */
+
+
+	/* now set the registers */
+	for (i = 0; i <= 0x18; i++) {	/*CR00 .. CR18 */
+		smiWrite (SMI_INDX_D4, i, cr[i]);
+	}
+	i = 0x22;		/*CR22 */
+	smiWrite (SMI_INDX_D4, i, cr[i]);
+	i = 0x30;		/*CR30 */
+	smiWrite (SMI_INDX_D4, i, cr[i]);
+}
+
+/*****************************************************************************/
+#define REF_FREQ	14318180
+#define PMIN		1
+#define PMAX		255
+#define QMIN		1
+#define QMAX		63
+
+static unsigned int FindPQ (unsigned int freq, unsigned int *pp, unsigned int *pq)
+{
+	unsigned int n = QMIN, m = 0;
+	long long int L = 0, P = freq, Q = REF_FREQ, H = P >> 1;
+	long long int D = 0x7ffffffffffffffLL;
+
+	for (n = QMIN; n <= QMAX; n++) {
+		m = PMIN;	/* p/q ~ freq/ref -> p*ref-freq*q ~ 0 */
+		L = P * n - m * Q;
+		while (L > 0 && m < PMAX) {
+			L -= REF_FREQ;	/* difference is greater as 0 subtract fref */
+			m++;	/* and increment m */
+		}
+		/* difference is less or equal than 0 or m > maximum */
+		if (m > PMAX)
+			break;	/* no solution: if we increase n we get the same situation */
+		/* L is <= 0 now */
+		if (-L > H && m > PMIN) {	/* if difference > the half fref */
+			L += REF_FREQ;	/* we take the situation before */
+			m--;	/* because its closer to 0 */
+		}
+		L = (L < 0) ? -L : +L;	/* absolute value */
+		if (D < L)	/* if last difference was better take next n */
+			continue;
+		D = L;
+		*pp = m;
+		*pq = n;	/*  keep improved data */
+		if (D == 0)
+			break;	/* best result we can get */
+	}
+	return (unsigned int) (0xffffffff & D);
+}
+
+/*****************************************************************************/
+static void smiLoadCcr (struct ctfb_res_modes *var, unsigned short device_id)
+{
+	unsigned int p = 0;
+	unsigned int q = 0;
+	long long freq;
+	register GraphicDevice *pGD  = (GraphicDevice *)&smi;
+
+	smiWrite (SMI_INDX_C4, 0x65, 0);
+	smiWrite (SMI_INDX_C4, 0x66, 0);
+	smiWrite (SMI_INDX_C4, 0x68, 0x50);
+	if (device_id == PCI_DEVICE_ID_SMI_810) {
+		smiWrite (SMI_INDX_C4, 0x69, 0x3);
+	} else {
+		smiWrite (SMI_INDX_C4, 0x69, 0x0);
+	}
+
+	/* Memory clock */
+	switch (device_id) {
+	case PCI_DEVICE_ID_SMI_710 :
+		smiWrite (SMI_INDX_C4, 0x6a, 0x75);
+		break;
+	case PCI_DEVICE_ID_SMI_712 :
+		smiWrite (SMI_INDX_C4, 0x6a, 0x80);
+		break;
+	default :
+		smiWrite (SMI_INDX_C4, 0x6a, 0x53);
+		break;
+	}
+	smiWrite (SMI_INDX_C4, 0x6b, 0x15);
+
+	/* VCLK */
+	freq = 1000000000000LL / var -> pixclock;
+
+	FindPQ ((unsigned int)freq, &p, &q);
+
+	smiWrite (SMI_INDX_C4, 0x6c, p);
+	smiWrite (SMI_INDX_C4, 0x6d, q);
+
+}
+
+/*******************************************************************************
+ *
+ * Init video chip with common Linux graphic modes (lilo)
+ */
+void *video_hw_init (void)
+{
+	GraphicDevice *pGD = (GraphicDevice *)&smi;
+	unsigned short device_id;
+	pci_dev_t devbusfn;
+	int videomode;
+	unsigned long t1, hsynch, vsynch;
+	unsigned int pci_mem_base, *vm;
+	char *penv;
+	int tmp, i, bits_per_pixel;
+	struct ctfb_res_modes *res_mode;
+	struct ctfb_res_modes var_mode;
+	unsigned char videoout;
+
+	/* Search for video chip */
+	printf("Video: ");
+
+	if ((devbusfn = pci_find_devices(supported, 0)) < 0)
+	{
+		printf ("Controller not found !\n");
+		return (NULL);
+	}
+
+	/* PCI setup */
+	pci_write_config_dword (devbusfn, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_IO));
+	pci_read_config_word (devbusfn, PCI_DEVICE_ID, &device_id);
+	pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, &pci_mem_base);
+	pci_mem_base = pci_mem_to_phys (devbusfn, pci_mem_base);
+
+	tmp = 0;
+
+	videomode = CFG_DEFAULT_VIDEO_MODE;
+	/* get video mode via environment */
+	if ((penv = getenv ("videomode")) != NULL) {
+		/* deceide if it is a string */
+		if (penv[0] <= '9') {
+			videomode = (int) simple_strtoul (penv, NULL, 16);
+			tmp = 1;
+		}
+	} else {
+		tmp = 1;
+	}
+	if (tmp) {
+		/* parameter are vesa modes */
+		/* search params */
+		for (i = 0; i < VESA_MODES_COUNT; i++) {
+			if (vesa_modes[i].vesanr == videomode)
+				break;
+		}
+		if (i == VESA_MODES_COUNT) {
+			printf ("no VESA Mode found, switching to mode 0x%x ", CFG_DEFAULT_VIDEO_MODE);
+			i = 0;
+		}
+		res_mode =
+			(struct ctfb_res_modes *) &res_mode_init[vesa_modes[i].
+								 resindex];
+		bits_per_pixel = vesa_modes[i].bits_per_pixel;
+	} else {
+
+		res_mode = (struct ctfb_res_modes *) &var_mode;
+		bits_per_pixel = video_get_params (res_mode, penv);
+	}
+
+	/* calculate hsynch and vsynch freq (info only) */
+	t1 = (res_mode->left_margin + res_mode->xres +
+	      res_mode->right_margin + res_mode->hsync_len) / 8;
+	t1 *= 8;
+	t1 *= res_mode->pixclock;
+	t1 /= 1000;
+	hsynch = 1000000000L / t1;
+	t1 *=
+		(res_mode->upper_margin + res_mode->yres +
+		 res_mode->lower_margin + res_mode->vsync_len);
+	t1 /= 1000;
+	vsynch = 1000000000L / t1;
+
+	/* fill in Graphic device struct */
+	sprintf (pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
+		 res_mode->yres, bits_per_pixel, (hsynch / 1000),
+		 (vsynch / 1000));
+	printf ("%s\n", pGD->modeIdent);
+	pGD->winSizeX = res_mode->xres;
+	pGD->winSizeY = res_mode->yres;
+	pGD->plnSizeX = res_mode->xres;
+	pGD->plnSizeY = res_mode->yres;
+	switch (bits_per_pixel) {
+	case 8:
+		pGD->gdfBytesPP = 1;
+		pGD->gdfIndex = GDF__8BIT_INDEX;
+		break;
+	case 15:
+		pGD->gdfBytesPP = 2;
+		pGD->gdfIndex = GDF_15BIT_555RGB;
+		break;
+	case 16:
+		pGD->gdfBytesPP = 2;
+		pGD->gdfIndex = GDF_16BIT_565RGB;
+		break;
+	case 24:
+		pGD->gdfBytesPP = 3;
+		pGD->gdfIndex = GDF_24BIT_888RGB;
+		break;
+	}
+
+	pGD->isaBase = CFG_ISA_IO;
+	pGD->pciBase = pci_mem_base;
+	pGD->dprBase = (pci_mem_base + 0x400000 + 0x8000);
+	pGD->vprBase = (pci_mem_base + 0x400000 + 0xc000);
+	pGD->cprBase = (pci_mem_base + 0x400000 + 0xe000);
+	pGD->frameAdrs = pci_mem_base;
+	pGD->memSize = VIDEO_MEM_SIZE;
+
+	/* Set up hardware : select color mode,
+	   set Register base to isa 3dx for 3?x regs*/
+	out8 (SMI_MISC_REG, 0x01);
+
+	/* Turn off display */
+	smiWrite (SMI_INDX_C4, 0x01, 0x20);
+
+	/* Unlock ext. crt regs */
+	out8 (SMI_LOCK_REG, 0x40);
+
+	/* Unlock crt regs 0-7 */
+	smiWrite (SMI_INDX_D4, 0x11, 0x0e);
+
+	/* Sytem Control Register */
+	smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_SCR, sizeof(SMI_SCR));
+
+	/* extented CRT Register */
+	smiLoadRegs (SMI_INDX_D4, SMI_DATA_D5, SMI_EXT_CRT, sizeof(SMI_EXT_CRT));
+
+	/* Attributes controller registers */
+	smiLoadRegs (SMI_INDX_ATTR, SMI_INDX_ATTR, SMI_ATTR, sizeof(SMI_ATTR));
+
+	/* Graphics Controller Register */
+	smiLoadRegs (SMI_INDX_CE, SMI_DATA_CF, SMI_GCR, sizeof(SMI_GCR));
+
+	/* Sequencer Register */
+	smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_SEQR, sizeof(SMI_SEQR));
+
+	/* Power Control Register */
+	smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_PCR, sizeof(SMI_PCR));
+
+	/* Memory Control Register */
+	/* Register MSR62 is a power on configurable register. We don't */
+	/* modify it */
+	smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_MCR, sizeof(SMI_MCR));
+
+	/* Set misc output register */
+	smiLoadMsr (res_mode);
+
+	/* Set CRT and Clock control registers */
+	smiLoadCrt (res_mode, bits_per_pixel);
+
+	smiLoadCcr (res_mode, device_id);
+
+	/* Hardware Cusor Register */
+	smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_HCR, sizeof(SMI_HCR));
+
+	/* Enable  Display  */
+	videoout = 2;	    /* Default output is CRT */
+	if ((penv = getenv ("videoout")) != NULL) {
+		/* deceide if it is a string */
+		videoout = (int) simple_strtoul (penv, NULL, 16);
+	}
+	smiWrite (SMI_INDX_C4, 0x31, videoout);
+
+	/* Video processor default setup */
+	smiInitVideoProcessor ();
+
+	/* Capture port default setup */
+	smiInitCapturePort ();
+
+	/* Drawing engine default setup */
+	smiInitDrawingEngine ();
+
+	/* Turn on display */
+	smiWrite (0x3c4, 0x01, 0x01);
+
+	/* Clear video memory */
+	i = pGD->memSize/4;
+	vm = (unsigned int *)pGD->pciBase;
+	while(i--)
+		*vm++ = 0;
+	return ((void*)&smi);
+}
+
+/*******************************************************************************
+ *
+ * Drawing engine fill on screen region
+ */
+void video_hw_rectfill (
+	unsigned int bpp,	      /* bytes per pixel */
+	unsigned int dst_x,	      /* dest pos x */
+	unsigned int dst_y,	      /* dest pos y */
+	unsigned int dim_x,	      /* frame width */
+	unsigned int dim_y,	      /* frame height */
+	unsigned int color	      /* fill color */
+	)
+{
+	register GraphicDevice *pGD = (GraphicDevice *)&smi;
+	register unsigned int control;
+
+	dim_x *= bpp;
+
+	out32r ((pGD->dprBase + 0x0014), color);
+	out32r ((pGD->dprBase + 0x0004), ((dst_x<<16) | dst_y));
+	out32r ((pGD->dprBase + 0x0008), ((dim_x<<16) | dim_y));
+
+	control = 0x0000ffff &	in32r ((pGD->dprBase + 0x000c));
+
+	control |= 0x80010000;
+
+	out32r ((pGD->dprBase + 0x000c),  control);
+
+	/* Wait for drawing processor */
+	do
+	{
+		out8 ((pGD->isaBase + 0x3c4), 0x16);
+	} while (in8 (pGD->isaBase + 0x3c5) & 0x08);
+}
+
+/*******************************************************************************
+ *
+ * Drawing engine bitblt with screen region
+ */
+void video_hw_bitblt (
+	unsigned int bpp,	      /* bytes per pixel */
+	unsigned int src_x,	      /* source pos x */
+	unsigned int src_y,	      /* source pos y */
+	unsigned int dst_x,	      /* dest pos x */
+	unsigned int dst_y,	      /* dest pos y */
+	unsigned int dim_x,	      /* frame width */
+	unsigned int dim_y	      /* frame height */
+	)
+{
+	register GraphicDevice *pGD = (GraphicDevice *)&smi;
+	register unsigned int control;
+
+	dim_x *= bpp;
+
+	if ((src_y<dst_y) || ((src_y==dst_y) && (src_x<dst_x)))
+	{
+		out32r ((pGD->dprBase + 0x0000), (((src_x+dim_x-1)<<16) | (src_y+dim_y-1)));
+		out32r ((pGD->dprBase + 0x0004), (((dst_x+dim_x-1)<<16) | (dst_y+dim_y-1)));
+		control = 0x88000000;
+	} else {
+		out32r ((pGD->dprBase + 0x0000), ((src_x<<16) | src_y));
+		out32r ((pGD->dprBase + 0x0004), ((dst_x<<16) | dst_y));
+		control = 0x80000000;
+	}
+
+	out32r ((pGD->dprBase + 0x0008), ((dim_x<<16) | dim_y));
+	control |= (0x0000ffff &  in32r ((pGD->dprBase + 0x000c)));
+	out32r ((pGD->dprBase + 0x000c), control);
+
+	/* Wait for drawing processor */
+	do
+	{
+		out8 ((pGD->isaBase + 0x3c4), 0x16);
+	} while (in8 (pGD->isaBase + 0x3c5) & 0x08);
+}
+
+/*******************************************************************************
+ *
+ * Set a RGB color in the LUT (8 bit index)
+ */
+void video_set_lut (
+	unsigned int index,	      /* color number */
+	unsigned char r,	      /* red */
+	unsigned char g,	      /* green */
+	unsigned char b		      /* blue */
+	)
+{
+	register GraphicDevice *pGD = (GraphicDevice *)&smi;
+
+	out8 (SMI_LUT_MASK,  0xff);
+
+	out8 (SMI_LUT_START, (char)index);
+
+	out8 (SMI_LUT_RGB, r>>2);    /* red */
+	udelay (10);
+	out8 (SMI_LUT_RGB, g>>2);    /* green */
+	udelay (10);
+	out8 (SMI_LUT_RGB, b>>2);    /* blue */
+	udelay (10);
+}
+
+#endif /* CONFIG_VIDEO_SMI_LYNXEM */