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path: root/drivers/smiLynxEM.c
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Diffstat (limited to 'drivers/smiLynxEM.c')
-rwxr-xr-xdrivers/smiLynxEM.c858
1 files changed, 858 insertions, 0 deletions
diff --git a/drivers/smiLynxEM.c b/drivers/smiLynxEM.c
new file mode 100755
index 0000000..20f9beb
--- /dev/null
+++ b/drivers/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 */
generated by cgit (git 2.34.1) at 2024-12-22 22:36:47 +0000